* [PATCH 01/18] ALSA: ad1816a: Use guard() for spin locks
2025-08-29 14:52 [PATCH 00/18] ALSA: Use auto-cleanup macros for ISA drivers Takashi Iwai
@ 2025-08-29 14:52 ` Takashi Iwai
2025-08-29 14:52 ` [PATCH 02/18] ALSA: cmi8330: " Takashi Iwai
` (16 subsequent siblings)
17 siblings, 0 replies; 19+ messages in thread
From: Takashi Iwai @ 2025-08-29 14:52 UTC (permalink / raw)
To: linux-sound
Clean up the code using guard() for spin locks.
Merely code refactoring, and no behavior change.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
sound/isa/ad1816a/ad1816a_lib.c | 117 ++++++++++----------------------
1 file changed, 37 insertions(+), 80 deletions(-)
diff --git a/sound/isa/ad1816a/ad1816a_lib.c b/sound/isa/ad1816a/ad1816a_lib.c
index 400ae547bcba..50f62304de61 100644
--- a/sound/isa/ad1816a/ad1816a_lib.c
+++ b/sound/isa/ad1816a/ad1816a_lib.c
@@ -96,14 +96,10 @@ static unsigned char snd_ad1816a_get_format(struct snd_ad1816a *chip,
static int snd_ad1816a_open(struct snd_ad1816a *chip, unsigned int mode)
{
- unsigned long flags;
+ guard(spinlock_irqsave)(&chip->lock);
- spin_lock_irqsave(&chip->lock, flags);
-
- if (chip->mode & mode) {
- spin_unlock_irqrestore(&chip->lock, flags);
+ if (chip->mode & mode)
return -EAGAIN;
- }
switch ((mode &= AD1816A_MODE_OPEN)) {
case AD1816A_MODE_PLAYBACK:
@@ -126,15 +122,12 @@ static int snd_ad1816a_open(struct snd_ad1816a *chip, unsigned int mode)
}
chip->mode |= mode;
- spin_unlock_irqrestore(&chip->lock, flags);
return 0;
}
static void snd_ad1816a_close(struct snd_ad1816a *chip, unsigned int mode)
{
- unsigned long flags;
-
- spin_lock_irqsave(&chip->lock, flags);
+ guard(spinlock_irqsave)(&chip->lock);
switch ((mode &= AD1816A_MODE_OPEN)) {
case AD1816A_MODE_PLAYBACK:
@@ -158,8 +151,6 @@ static void snd_ad1816a_close(struct snd_ad1816a *chip, unsigned int mode)
chip->mode &= ~mode;
if (!(chip->mode & AD1816A_MODE_OPEN))
chip->mode = 0;
-
- spin_unlock_irqrestore(&chip->lock, flags);
}
@@ -171,19 +162,19 @@ static int snd_ad1816a_trigger(struct snd_ad1816a *chip, unsigned char what,
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_STOP:
- spin_lock(&chip->lock);
- cmd = (cmd == SNDRV_PCM_TRIGGER_START) ? 0xff: 0x00;
- /* if (what & AD1816A_PLAYBACK_ENABLE) */
- /* That is not valid, because playback and capture enable
- * are the same bit pattern, just to different addresses
- */
- if (! iscapture)
- snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG,
- AD1816A_PLAYBACK_ENABLE, cmd);
- else
- snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG,
- AD1816A_CAPTURE_ENABLE, cmd);
- spin_unlock(&chip->lock);
+ scoped_guard(spinlock, &chip->lock) {
+ cmd = (cmd == SNDRV_PCM_TRIGGER_START) ? 0xff: 0x00;
+ /* if (what & AD1816A_PLAYBACK_ENABLE) */
+ /* That is not valid, because playback and capture enable
+ * are the same bit pattern, just to different addresses
+ */
+ if (!iscapture)
+ snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG,
+ AD1816A_PLAYBACK_ENABLE, cmd);
+ else
+ snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG,
+ AD1816A_CAPTURE_ENABLE, cmd);
+ }
break;
default:
dev_warn(chip->card->dev, "invalid trigger mode 0x%x.\n", what);
@@ -210,11 +201,10 @@ static int snd_ad1816a_capture_trigger(struct snd_pcm_substream *substream, int
static int snd_ad1816a_playback_prepare(struct snd_pcm_substream *substream)
{
struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
- unsigned long flags;
struct snd_pcm_runtime *runtime = substream->runtime;
unsigned int size, rate;
- spin_lock_irqsave(&chip->lock, flags);
+ guard(spinlock_irqsave)(&chip->lock);
chip->p_dma_size = size = snd_pcm_lib_buffer_bytes(substream);
snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG,
@@ -234,19 +224,16 @@ static int snd_ad1816a_playback_prepare(struct snd_pcm_substream *substream)
snd_ad1816a_write(chip, AD1816A_PLAYBACK_BASE_COUNT,
snd_pcm_lib_period_bytes(substream) / 4 - 1);
-
- spin_unlock_irqrestore(&chip->lock, flags);
return 0;
}
static int snd_ad1816a_capture_prepare(struct snd_pcm_substream *substream)
{
struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
- unsigned long flags;
struct snd_pcm_runtime *runtime = substream->runtime;
unsigned int size, rate;
- spin_lock_irqsave(&chip->lock, flags);
+ guard(spinlock_irqsave)(&chip->lock);
chip->c_dma_size = size = snd_pcm_lib_buffer_bytes(substream);
snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG,
@@ -266,8 +253,6 @@ static int snd_ad1816a_capture_prepare(struct snd_pcm_substream *substream)
snd_ad1816a_write(chip, AD1816A_CAPTURE_BASE_COUNT,
snd_pcm_lib_period_bytes(substream) / 4 - 1);
-
- spin_unlock_irqrestore(&chip->lock, flags);
return 0;
}
@@ -298,9 +283,9 @@ static irqreturn_t snd_ad1816a_interrupt(int irq, void *dev_id)
struct snd_ad1816a *chip = dev_id;
unsigned char status;
- spin_lock(&chip->lock);
- status = snd_ad1816a_in(chip, AD1816A_INTERRUPT_STATUS);
- spin_unlock(&chip->lock);
+ scoped_guard(spinlock, &chip->lock) {
+ status = snd_ad1816a_in(chip, AD1816A_INTERRUPT_STATUS);
+ }
if ((status & AD1816A_PLAYBACK_IRQ_PENDING) && chip->playback_substream)
snd_pcm_period_elapsed(chip->playback_substream);
@@ -311,9 +296,9 @@ static irqreturn_t snd_ad1816a_interrupt(int irq, void *dev_id)
if ((status & AD1816A_TIMER_IRQ_PENDING) && chip->timer)
snd_timer_interrupt(chip->timer, chip->timer->sticks);
- spin_lock(&chip->lock);
- snd_ad1816a_out(chip, AD1816A_INTERRUPT_STATUS, 0x00);
- spin_unlock(&chip->lock);
+ scoped_guard(spinlock, &chip->lock) {
+ snd_ad1816a_out(chip, AD1816A_INTERRUPT_STATUS, 0x00);
+ }
return IRQ_HANDLED;
}
@@ -381,9 +366,9 @@ static unsigned long snd_ad1816a_timer_resolution(struct snd_timer *timer)
static int snd_ad1816a_timer_start(struct snd_timer *timer)
{
unsigned short bits;
- unsigned long flags;
struct snd_ad1816a *chip = snd_timer_chip(timer);
- spin_lock_irqsave(&chip->lock, flags);
+
+ guard(spinlock_irqsave)(&chip->lock);
bits = snd_ad1816a_read(chip, AD1816A_INTERRUPT_ENABLE);
if (!(bits & AD1816A_TIMER_ENABLE)) {
@@ -393,20 +378,16 @@ static int snd_ad1816a_timer_start(struct snd_timer *timer)
snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
AD1816A_TIMER_ENABLE, 0xffff);
}
- spin_unlock_irqrestore(&chip->lock, flags);
return 0;
}
static int snd_ad1816a_timer_stop(struct snd_timer *timer)
{
- unsigned long flags;
struct snd_ad1816a *chip = snd_timer_chip(timer);
- spin_lock_irqsave(&chip->lock, flags);
+ guard(spinlock_irqsave)(&chip->lock);
snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
AD1816A_TIMER_ENABLE, 0x0000);
-
- spin_unlock_irqrestore(&chip->lock, flags);
return 0;
}
@@ -474,9 +455,7 @@ static int snd_ad1816a_capture_close(struct snd_pcm_substream *substream)
static void snd_ad1816a_init(struct snd_ad1816a *chip)
{
- unsigned long flags;
-
- spin_lock_irqsave(&chip->lock, flags);
+ guard(spinlock_irqsave)(&chip->lock);
snd_ad1816a_out(chip, AD1816A_INTERRUPT_STATUS, 0x00);
snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG,
@@ -488,40 +467,32 @@ static void snd_ad1816a_init(struct snd_ad1816a *chip)
AD1816A_CAPTURE_NOT_EQUAL | AD1816A_WSS_ENABLE, 0xffff);
snd_ad1816a_write(chip, AD1816A_DSP_CONFIG, 0x0000);
snd_ad1816a_write(chip, AD1816A_POWERDOWN_CTRL, 0x0000);
-
- spin_unlock_irqrestore(&chip->lock, flags);
}
#ifdef CONFIG_PM
void snd_ad1816a_suspend(struct snd_ad1816a *chip)
{
int reg;
- unsigned long flags;
- spin_lock_irqsave(&chip->lock, flags);
+ guard(spinlock_irqsave)(&chip->lock);
for (reg = 0; reg < 48; reg++)
chip->image[reg] = snd_ad1816a_read(chip, reg);
- spin_unlock_irqrestore(&chip->lock, flags);
}
void snd_ad1816a_resume(struct snd_ad1816a *chip)
{
int reg;
- unsigned long flags;
snd_ad1816a_init(chip);
- spin_lock_irqsave(&chip->lock, flags);
+ guard(spinlock_irqsave)(&chip->lock);
for (reg = 0; reg < 48; reg++)
snd_ad1816a_write(chip, reg, chip->image[reg]);
- spin_unlock_irqrestore(&chip->lock, flags);
}
#endif
static int snd_ad1816a_probe(struct snd_ad1816a *chip)
{
- unsigned long flags;
-
- spin_lock_irqsave(&chip->lock, flags);
+ guard(spinlock_irqsave)(&chip->lock);
switch (chip->version = snd_ad1816a_read(chip, AD1816A_VERSION_ID)) {
case 0:
@@ -536,8 +507,6 @@ static int snd_ad1816a_probe(struct snd_ad1816a *chip)
default:
chip->hardware = AD1816A_HW_AUTO;
}
-
- spin_unlock_irqrestore(&chip->lock, flags);
return 0;
}
@@ -679,12 +648,10 @@ static int snd_ad1816a_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_el
static int snd_ad1816a_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
unsigned short val;
- spin_lock_irqsave(&chip->lock, flags);
+ guard(spinlock_irqsave)(&chip->lock);
val = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL);
- spin_unlock_irqrestore(&chip->lock, flags);
ucontrol->value.enumerated.item[0] = (val >> 12) & 7;
ucontrol->value.enumerated.item[1] = (val >> 4) & 7;
return 0;
@@ -693,7 +660,6 @@ static int snd_ad1816a_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_ele
static int snd_ad1816a_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
unsigned short val;
int change;
@@ -702,10 +668,9 @@ static int snd_ad1816a_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_ele
return -EINVAL;
val = (ucontrol->value.enumerated.item[0] << 12) |
(ucontrol->value.enumerated.item[1] << 4);
- spin_lock_irqsave(&chip->lock, flags);
+ guard(spinlock_irqsave)(&chip->lock);
change = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL) != val;
snd_ad1816a_write(chip, AD1816A_ADC_SOURCE_SEL, val);
- spin_unlock_irqrestore(&chip->lock, flags);
return change;
}
@@ -735,15 +700,13 @@ static int snd_ad1816a_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl
static int snd_ad1816a_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int reg = kcontrol->private_value & 0xff;
int shift = (kcontrol->private_value >> 8) & 0xff;
int mask = (kcontrol->private_value >> 16) & 0xff;
int invert = (kcontrol->private_value >> 24) & 0xff;
- spin_lock_irqsave(&chip->lock, flags);
+ guard(spinlock_irqsave)(&chip->lock);
ucontrol->value.integer.value[0] = (snd_ad1816a_read(chip, reg) >> shift) & mask;
- spin_unlock_irqrestore(&chip->lock, flags);
if (invert)
ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
return 0;
@@ -752,7 +715,6 @@ static int snd_ad1816a_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_
static int snd_ad1816a_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int reg = kcontrol->private_value & 0xff;
int shift = (kcontrol->private_value >> 8) & 0xff;
int mask = (kcontrol->private_value >> 16) & 0xff;
@@ -764,12 +726,11 @@ static int snd_ad1816a_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_
if (invert)
val = mask - val;
val <<= shift;
- spin_lock_irqsave(&chip->lock, flags);
+ guard(spinlock_irqsave)(&chip->lock);
old_val = snd_ad1816a_read(chip, reg);
val = (old_val & ~(mask << shift)) | val;
change = val != old_val;
snd_ad1816a_write(chip, reg, val);
- spin_unlock_irqrestore(&chip->lock, flags);
return change;
}
@@ -800,7 +761,6 @@ static int snd_ad1816a_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl
static int snd_ad1816a_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int reg = kcontrol->private_value & 0xff;
int shift_left = (kcontrol->private_value >> 8) & 0x0f;
int shift_right = (kcontrol->private_value >> 12) & 0x0f;
@@ -808,11 +768,10 @@ static int snd_ad1816a_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_
int invert = (kcontrol->private_value >> 24) & 0xff;
unsigned short val;
- spin_lock_irqsave(&chip->lock, flags);
+ guard(spinlock_irqsave)(&chip->lock);
val = snd_ad1816a_read(chip, reg);
ucontrol->value.integer.value[0] = (val >> shift_left) & mask;
ucontrol->value.integer.value[1] = (val >> shift_right) & mask;
- spin_unlock_irqrestore(&chip->lock, flags);
if (invert) {
ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
@@ -823,7 +782,6 @@ static int snd_ad1816a_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_
static int snd_ad1816a_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int reg = kcontrol->private_value & 0xff;
int shift_left = (kcontrol->private_value >> 8) & 0x0f;
int shift_right = (kcontrol->private_value >> 12) & 0x0f;
@@ -840,12 +798,11 @@ static int snd_ad1816a_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_
}
val1 <<= shift_left;
val2 <<= shift_right;
- spin_lock_irqsave(&chip->lock, flags);
+ guard(spinlock_irqsave)(&chip->lock);
old_val = snd_ad1816a_read(chip, reg);
val1 = (old_val & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2;
change = val1 != old_val;
snd_ad1816a_write(chip, reg, val1);
- spin_unlock_irqrestore(&chip->lock, flags);
return change;
}
--
2.50.1
^ permalink raw reply related [flat|nested] 19+ messages in thread* [PATCH 02/18] ALSA: cmi8330: Use guard() for spin locks
2025-08-29 14:52 [PATCH 00/18] ALSA: Use auto-cleanup macros for ISA drivers Takashi Iwai
2025-08-29 14:52 ` [PATCH 01/18] ALSA: ad1816a: Use guard() for spin locks Takashi Iwai
@ 2025-08-29 14:52 ` Takashi Iwai
2025-08-29 14:52 ` [PATCH 03/18] ALSA: cs423x: Use guard() for mutex locks Takashi Iwai
` (15 subsequent siblings)
17 siblings, 0 replies; 19+ messages in thread
From: Takashi Iwai @ 2025-08-29 14:52 UTC (permalink / raw)
To: linux-sound
Clean up the code using guard() for spin locks.
Merely code refactoring, and no behavior change.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
sound/isa/cmi8330.c | 15 +++++++--------
1 file changed, 7 insertions(+), 8 deletions(-)
diff --git a/sound/isa/cmi8330.c b/sound/isa/cmi8330.c
index e681c2c82474..3d1f19321b9e 100644
--- a/sound/isa/cmi8330.c
+++ b/sound/isa/cmi8330.c
@@ -269,18 +269,17 @@ static const unsigned char cmi8330_sb_init_values[][2] = {
static int cmi8330_add_sb_mixers(struct snd_sb *chip)
{
int idx, err;
- unsigned long flags;
- spin_lock_irqsave(&chip->mixer_lock, flags);
- snd_sbmixer_write(chip, 0x00, 0x00); /* mixer reset */
- spin_unlock_irqrestore(&chip->mixer_lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->mixer_lock) {
+ snd_sbmixer_write(chip, 0x00, 0x00); /* mixer reset */
+ }
/* mute and zero volume channels */
for (idx = 0; idx < ARRAY_SIZE(cmi8330_sb_init_values); idx++) {
- spin_lock_irqsave(&chip->mixer_lock, flags);
- snd_sbmixer_write(chip, cmi8330_sb_init_values[idx][0],
- cmi8330_sb_init_values[idx][1]);
- spin_unlock_irqrestore(&chip->mixer_lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->mixer_lock) {
+ snd_sbmixer_write(chip, cmi8330_sb_init_values[idx][0],
+ cmi8330_sb_init_values[idx][1]);
+ }
}
for (idx = 0; idx < ARRAY_SIZE(cmi8330_sb_mixers); idx++) {
--
2.50.1
^ permalink raw reply related [flat|nested] 19+ messages in thread* [PATCH 03/18] ALSA: cs423x: Use guard() for mutex locks
2025-08-29 14:52 [PATCH 00/18] ALSA: Use auto-cleanup macros for ISA drivers Takashi Iwai
2025-08-29 14:52 ` [PATCH 01/18] ALSA: ad1816a: Use guard() for spin locks Takashi Iwai
2025-08-29 14:52 ` [PATCH 02/18] ALSA: cmi8330: " Takashi Iwai
@ 2025-08-29 14:52 ` Takashi Iwai
2025-08-29 14:52 ` [PATCH 04/18] ALSA: cs423x: Use guard() for spin locks Takashi Iwai
` (14 subsequent siblings)
17 siblings, 0 replies; 19+ messages in thread
From: Takashi Iwai @ 2025-08-29 14:52 UTC (permalink / raw)
To: linux-sound
Replace the manual mutex lock/unlock pairs with guard() for code
simplification.
Only code refactoring, and no behavior change.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
sound/isa/cs423x/cs4236_lib.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/sound/isa/cs423x/cs4236_lib.c b/sound/isa/cs423x/cs4236_lib.c
index eaaf39aae526..bf5b0ffb9273 100644
--- a/sound/isa/cs423x/cs4236_lib.c
+++ b/sound/isa/cs423x/cs4236_lib.c
@@ -956,7 +956,7 @@ static int snd_cs4236_put_iec958_switch(struct snd_kcontrol *kcontrol, struct sn
enable = ucontrol->value.integer.value[0] & 1;
- mutex_lock(&chip->mce_mutex);
+ guard(mutex)(&chip->mce_mutex);
snd_wss_mce_up(chip);
spin_lock_irqsave(&chip->reg_lock, flags);
val = (chip->image[CS4231_ALT_FEATURE_1] & ~0x0e) | (0<<2) | (enable << 1);
@@ -969,7 +969,6 @@ static int snd_cs4236_put_iec958_switch(struct snd_kcontrol *kcontrol, struct sn
snd_cs4236_ctrl_out(chip, 4, val);
spin_unlock_irqrestore(&chip->reg_lock, flags);
snd_wss_mce_down(chip);
- mutex_unlock(&chip->mce_mutex);
#if 0
dev_dbg(chip->card->dev,
--
2.50.1
^ permalink raw reply related [flat|nested] 19+ messages in thread* [PATCH 04/18] ALSA: cs423x: Use guard() for spin locks
2025-08-29 14:52 [PATCH 00/18] ALSA: Use auto-cleanup macros for ISA drivers Takashi Iwai
` (2 preceding siblings ...)
2025-08-29 14:52 ` [PATCH 03/18] ALSA: cs423x: Use guard() for mutex locks Takashi Iwai
@ 2025-08-29 14:52 ` Takashi Iwai
2025-08-29 14:52 ` [PATCH 05/18] ALSA: es1688: " Takashi Iwai
` (13 subsequent siblings)
17 siblings, 0 replies; 19+ messages in thread
From: Takashi Iwai @ 2025-08-29 14:52 UTC (permalink / raw)
To: linux-sound
Clean up the code using guard() for spin locks.
Merely code refactoring, and no behavior change.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
sound/isa/cs423x/cs4236_lib.c | 130 +++++++++++++---------------------
1 file changed, 48 insertions(+), 82 deletions(-)
diff --git a/sound/isa/cs423x/cs4236_lib.c b/sound/isa/cs423x/cs4236_lib.c
index bf5b0ffb9273..e2c29e831020 100644
--- a/sound/isa/cs423x/cs4236_lib.c
+++ b/sound/isa/cs423x/cs4236_lib.c
@@ -169,10 +169,9 @@ static void snd_cs4236_playback_format(struct snd_wss *chip,
struct snd_pcm_hw_params *params,
unsigned char pdfr)
{
- unsigned long flags;
unsigned char rate = divisor_to_rate_register(params->rate_den);
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
/* set fast playback format change and clean playback FIFO */
snd_wss_out(chip, CS4231_ALT_FEATURE_1,
chip->image[CS4231_ALT_FEATURE_1] | 0x10);
@@ -180,17 +179,15 @@ static void snd_cs4236_playback_format(struct snd_wss *chip,
snd_wss_out(chip, CS4231_ALT_FEATURE_1,
chip->image[CS4231_ALT_FEATURE_1] & ~0x10);
snd_cs4236_ext_out(chip, CS4236_DAC_RATE, rate);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
}
static void snd_cs4236_capture_format(struct snd_wss *chip,
struct snd_pcm_hw_params *params,
unsigned char cdfr)
{
- unsigned long flags;
unsigned char rate = divisor_to_rate_register(params->rate_den);
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
/* set fast capture format change and clean capture FIFO */
snd_wss_out(chip, CS4231_ALT_FEATURE_1,
chip->image[CS4231_ALT_FEATURE_1] | 0x20);
@@ -198,7 +195,6 @@ static void snd_cs4236_capture_format(struct snd_wss *chip,
snd_wss_out(chip, CS4231_ALT_FEATURE_1,
chip->image[CS4231_ALT_FEATURE_1] & ~0x20);
snd_cs4236_ext_out(chip, CS4236_ADC_RATE, rate);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
}
#ifdef CONFIG_PM
@@ -206,48 +202,45 @@ static void snd_cs4236_capture_format(struct snd_wss *chip,
static void snd_cs4236_suspend(struct snd_wss *chip)
{
int reg;
- unsigned long flags;
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
for (reg = 0; reg < 32; reg++)
chip->image[reg] = snd_wss_in(chip, reg);
for (reg = 0; reg < 18; reg++)
chip->eimage[reg] = snd_cs4236_ext_in(chip, CS4236_I23VAL(reg));
for (reg = 2; reg < 9; reg++)
chip->cimage[reg] = snd_cs4236_ctrl_in(chip, reg);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
}
static void snd_cs4236_resume(struct snd_wss *chip)
{
int reg;
- unsigned long flags;
snd_wss_mce_up(chip);
- spin_lock_irqsave(&chip->reg_lock, flags);
- for (reg = 0; reg < 32; reg++) {
- switch (reg) {
- case CS4236_EXT_REG:
- case CS4231_VERSION:
- case 27: /* why? CS4235 - master left */
- case 29: /* why? CS4235 - master right */
- break;
- default:
- snd_wss_out(chip, reg, chip->image[reg]);
- break;
+ scoped_guard(spinlock_irqsave, &chip->reg_lock) {
+ for (reg = 0; reg < 32; reg++) {
+ switch (reg) {
+ case CS4236_EXT_REG:
+ case CS4231_VERSION:
+ case 27: /* why? CS4235 - master left */
+ case 29: /* why? CS4235 - master right */
+ break;
+ default:
+ snd_wss_out(chip, reg, chip->image[reg]);
+ break;
+ }
+ }
+ for (reg = 0; reg < 18; reg++)
+ snd_cs4236_ext_out(chip, CS4236_I23VAL(reg), chip->eimage[reg]);
+ for (reg = 2; reg < 9; reg++) {
+ switch (reg) {
+ case 7:
+ break;
+ default:
+ snd_cs4236_ctrl_out(chip, reg, chip->cimage[reg]);
+ }
}
}
- for (reg = 0; reg < 18; reg++)
- snd_cs4236_ext_out(chip, CS4236_I23VAL(reg), chip->eimage[reg]);
- for (reg = 2; reg < 9; reg++) {
- switch (reg) {
- case 7:
- break;
- default:
- snd_cs4236_ctrl_out(chip, reg, chip->cimage[reg]);
- }
- }
- spin_unlock_irqrestore(&chip->reg_lock, flags);
snd_wss_mce_down(chip);
}
@@ -403,15 +396,13 @@ static int snd_cs4236_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_
static int snd_cs4236_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int reg = kcontrol->private_value & 0xff;
int shift = (kcontrol->private_value >> 8) & 0xff;
int mask = (kcontrol->private_value >> 16) & 0xff;
int invert = (kcontrol->private_value >> 24) & 0xff;
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
ucontrol->value.integer.value[0] = (chip->eimage[CS4236_REG(reg)] >> shift) & mask;
- spin_unlock_irqrestore(&chip->reg_lock, flags);
if (invert)
ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
return 0;
@@ -420,7 +411,6 @@ static int snd_cs4236_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_e
static int snd_cs4236_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int reg = kcontrol->private_value & 0xff;
int shift = (kcontrol->private_value >> 8) & 0xff;
int mask = (kcontrol->private_value >> 16) & 0xff;
@@ -432,11 +422,10 @@ static int snd_cs4236_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_e
if (invert)
val = mask - val;
val <<= shift;
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
val = (chip->eimage[CS4236_REG(reg)] & ~(mask << shift)) | val;
change = val != chip->eimage[CS4236_REG(reg)];
snd_cs4236_ext_out(chip, reg, val);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
return change;
}
@@ -449,15 +438,13 @@ static int snd_cs4236_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_e
static int snd_cs4236_get_singlec(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int reg = kcontrol->private_value & 0xff;
int shift = (kcontrol->private_value >> 8) & 0xff;
int mask = (kcontrol->private_value >> 16) & 0xff;
int invert = (kcontrol->private_value >> 24) & 0xff;
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
ucontrol->value.integer.value[0] = (chip->cimage[reg] >> shift) & mask;
- spin_unlock_irqrestore(&chip->reg_lock, flags);
if (invert)
ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
return 0;
@@ -466,7 +453,6 @@ static int snd_cs4236_get_singlec(struct snd_kcontrol *kcontrol, struct snd_ctl_
static int snd_cs4236_put_singlec(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int reg = kcontrol->private_value & 0xff;
int shift = (kcontrol->private_value >> 8) & 0xff;
int mask = (kcontrol->private_value >> 16) & 0xff;
@@ -478,11 +464,10 @@ static int snd_cs4236_put_singlec(struct snd_kcontrol *kcontrol, struct snd_ctl_
if (invert)
val = mask - val;
val <<= shift;
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
val = (chip->cimage[reg] & ~(mask << shift)) | val;
change = val != chip->cimage[reg];
snd_cs4236_ctrl_out(chip, reg, val);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
return change;
}
@@ -516,7 +501,6 @@ static int snd_cs4236_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_
static int snd_cs4236_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int left_reg = kcontrol->private_value & 0xff;
int right_reg = (kcontrol->private_value >> 8) & 0xff;
int shift_left = (kcontrol->private_value >> 16) & 0x07;
@@ -524,10 +508,9 @@ static int snd_cs4236_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_e
int mask = (kcontrol->private_value >> 24) & 0xff;
int invert = (kcontrol->private_value >> 22) & 1;
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
ucontrol->value.integer.value[0] = (chip->eimage[CS4236_REG(left_reg)] >> shift_left) & mask;
ucontrol->value.integer.value[1] = (chip->eimage[CS4236_REG(right_reg)] >> shift_right) & mask;
- spin_unlock_irqrestore(&chip->reg_lock, flags);
if (invert) {
ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
@@ -538,7 +521,6 @@ static int snd_cs4236_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_e
static int snd_cs4236_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int left_reg = kcontrol->private_value & 0xff;
int right_reg = (kcontrol->private_value >> 8) & 0xff;
int shift_left = (kcontrol->private_value >> 16) & 0x07;
@@ -556,7 +538,7 @@ static int snd_cs4236_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_e
}
val1 <<= shift_left;
val2 <<= shift_right;
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
if (left_reg != right_reg) {
val1 = (chip->eimage[CS4236_REG(left_reg)] & ~(mask << shift_left)) | val1;
val2 = (chip->eimage[CS4236_REG(right_reg)] & ~(mask << shift_right)) | val2;
@@ -568,7 +550,6 @@ static int snd_cs4236_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_e
change = val1 != chip->eimage[CS4236_REG(left_reg)];
snd_cs4236_ext_out(chip, left_reg, val1);
}
- spin_unlock_irqrestore(&chip->reg_lock, flags);
return change;
}
@@ -592,7 +573,6 @@ static int snd_cs4236_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_e
static int snd_cs4236_get_double1(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int left_reg = kcontrol->private_value & 0xff;
int right_reg = (kcontrol->private_value >> 8) & 0xff;
int shift_left = (kcontrol->private_value >> 16) & 0x07;
@@ -600,10 +580,9 @@ static int snd_cs4236_get_double1(struct snd_kcontrol *kcontrol, struct snd_ctl_
int mask = (kcontrol->private_value >> 24) & 0xff;
int invert = (kcontrol->private_value >> 22) & 1;
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
ucontrol->value.integer.value[0] = (chip->image[left_reg] >> shift_left) & mask;
ucontrol->value.integer.value[1] = (chip->eimage[CS4236_REG(right_reg)] >> shift_right) & mask;
- spin_unlock_irqrestore(&chip->reg_lock, flags);
if (invert) {
ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
@@ -614,7 +593,6 @@ static int snd_cs4236_get_double1(struct snd_kcontrol *kcontrol, struct snd_ctl_
static int snd_cs4236_put_double1(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int left_reg = kcontrol->private_value & 0xff;
int right_reg = (kcontrol->private_value >> 8) & 0xff;
int shift_left = (kcontrol->private_value >> 16) & 0x07;
@@ -632,13 +610,12 @@ static int snd_cs4236_put_double1(struct snd_kcontrol *kcontrol, struct snd_ctl_
}
val1 <<= shift_left;
val2 <<= shift_right;
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
val1 = (chip->image[left_reg] & ~(mask << shift_left)) | val1;
val2 = (chip->eimage[CS4236_REG(right_reg)] & ~(mask << shift_right)) | val2;
change = val1 != chip->image[left_reg] || val2 != chip->eimage[CS4236_REG(right_reg)];
snd_wss_out(chip, left_reg, val1);
snd_cs4236_ext_out(chip, right_reg, val2);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
return change;
}
@@ -658,31 +635,27 @@ static inline int snd_cs4236_mixer_master_digital_invert_volume(int vol)
static int snd_cs4236_get_master_digital(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
ucontrol->value.integer.value[0] = snd_cs4236_mixer_master_digital_invert_volume(chip->eimage[CS4236_REG(CS4236_LEFT_MASTER)] & 0x7f);
ucontrol->value.integer.value[1] = snd_cs4236_mixer_master_digital_invert_volume(chip->eimage[CS4236_REG(CS4236_RIGHT_MASTER)] & 0x7f);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
return 0;
}
static int snd_cs4236_put_master_digital(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int change;
unsigned short val1, val2;
val1 = snd_cs4236_mixer_master_digital_invert_volume(ucontrol->value.integer.value[0] & 0x7f);
val2 = snd_cs4236_mixer_master_digital_invert_volume(ucontrol->value.integer.value[1] & 0x7f);
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
val1 = (chip->eimage[CS4236_REG(CS4236_LEFT_MASTER)] & ~0x7f) | val1;
val2 = (chip->eimage[CS4236_REG(CS4236_RIGHT_MASTER)] & ~0x7f) | val2;
change = val1 != chip->eimage[CS4236_REG(CS4236_LEFT_MASTER)] || val2 != chip->eimage[CS4236_REG(CS4236_RIGHT_MASTER)];
snd_cs4236_ext_out(chip, CS4236_LEFT_MASTER, val1);
snd_cs4236_ext_out(chip, CS4236_RIGHT_MASTER, val2);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
return change;
}
@@ -719,31 +692,27 @@ static inline int snd_cs4235_mixer_output_accu_set_volume(int vol)
static int snd_cs4235_get_output_accu(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
ucontrol->value.integer.value[0] = snd_cs4235_mixer_output_accu_get_volume(chip->image[CS4235_LEFT_MASTER]);
ucontrol->value.integer.value[1] = snd_cs4235_mixer_output_accu_get_volume(chip->image[CS4235_RIGHT_MASTER]);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
return 0;
}
static int snd_cs4235_put_output_accu(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int change;
unsigned short val1, val2;
val1 = snd_cs4235_mixer_output_accu_set_volume(ucontrol->value.integer.value[0]);
val2 = snd_cs4235_mixer_output_accu_set_volume(ucontrol->value.integer.value[1]);
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
val1 = (chip->image[CS4235_LEFT_MASTER] & ~(3 << 5)) | val1;
val2 = (chip->image[CS4235_RIGHT_MASTER] & ~(3 << 5)) | val2;
change = val1 != chip->image[CS4235_LEFT_MASTER] || val2 != chip->image[CS4235_RIGHT_MASTER];
snd_wss_out(chip, CS4235_LEFT_MASTER, val1);
snd_wss_out(chip, CS4235_RIGHT_MASTER, val2);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
return change;
}
@@ -929,9 +898,8 @@ WSS_DOUBLE("Analog Loopback Switch", 0,
static int snd_cs4236_get_iec958_switch(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
ucontrol->value.integer.value[0] = chip->image[CS4231_ALT_FEATURE_1] & 0x02 ? 1 : 0;
#if 0
dev_dbg(chip->card->dev,
@@ -943,14 +911,12 @@ static int snd_cs4236_get_iec958_switch(struct snd_kcontrol *kcontrol, struct sn
snd_cs4236_ctrl_in(chip, 6),
snd_cs4236_ctrl_in(chip, 8));
#endif
- spin_unlock_irqrestore(&chip->reg_lock, flags);
return 0;
}
static int snd_cs4236_put_iec958_switch(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int change;
unsigned short enable, val;
@@ -958,16 +924,16 @@ static int snd_cs4236_put_iec958_switch(struct snd_kcontrol *kcontrol, struct sn
guard(mutex)(&chip->mce_mutex);
snd_wss_mce_up(chip);
- spin_lock_irqsave(&chip->reg_lock, flags);
- val = (chip->image[CS4231_ALT_FEATURE_1] & ~0x0e) | (0<<2) | (enable << 1);
- change = val != chip->image[CS4231_ALT_FEATURE_1];
- snd_wss_out(chip, CS4231_ALT_FEATURE_1, val);
- val = snd_cs4236_ctrl_in(chip, 4) | 0xc0;
- snd_cs4236_ctrl_out(chip, 4, val);
- udelay(100);
- val &= ~0x40;
- snd_cs4236_ctrl_out(chip, 4, val);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->reg_lock) {
+ val = (chip->image[CS4231_ALT_FEATURE_1] & ~0x0e) | (0<<2) | (enable << 1);
+ change = val != chip->image[CS4231_ALT_FEATURE_1];
+ snd_wss_out(chip, CS4231_ALT_FEATURE_1, val);
+ val = snd_cs4236_ctrl_in(chip, 4) | 0xc0;
+ snd_cs4236_ctrl_out(chip, 4, val);
+ udelay(100);
+ val &= ~0x40;
+ snd_cs4236_ctrl_out(chip, 4, val);
+ }
snd_wss_mce_down(chip);
#if 0
--
2.50.1
^ permalink raw reply related [flat|nested] 19+ messages in thread* [PATCH 05/18] ALSA: es1688: Use guard() for spin locks
2025-08-29 14:52 [PATCH 00/18] ALSA: Use auto-cleanup macros for ISA drivers Takashi Iwai
` (3 preceding siblings ...)
2025-08-29 14:52 ` [PATCH 04/18] ALSA: cs423x: Use guard() for spin locks Takashi Iwai
@ 2025-08-29 14:52 ` Takashi Iwai
2025-08-29 14:52 ` [PATCH 06/18] ALSA: es18xx: " Takashi Iwai
` (12 subsequent siblings)
17 siblings, 0 replies; 19+ messages in thread
From: Takashi Iwai @ 2025-08-29 14:52 UTC (permalink / raw)
To: linux-sound
Clean up the code using guard() for spin locks.
Merely code refactoring, and no behavior change.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
sound/isa/es1688/es1688_lib.c | 276 ++++++++++++++++------------------
1 file changed, 128 insertions(+), 148 deletions(-)
diff --git a/sound/isa/es1688/es1688_lib.c b/sound/isa/es1688/es1688_lib.c
index 2ef183f197ad..59987dbc9ae9 100644
--- a/sound/isa/es1688/es1688_lib.c
+++ b/sound/isa/es1688/es1688_lib.c
@@ -105,7 +105,6 @@ EXPORT_SYMBOL(snd_es1688_reset);
static int snd_es1688_probe(struct snd_es1688 *chip)
{
- unsigned long flags;
unsigned short major, minor;
int i;
@@ -113,39 +112,36 @@ static int snd_es1688_probe(struct snd_es1688 *chip)
* initialization sequence
*/
- spin_lock_irqsave(&chip->reg_lock, flags); /* Some ESS1688 cards need this */
- inb(ES1688P(chip, ENABLE1)); /* ENABLE1 */
- inb(ES1688P(chip, ENABLE1)); /* ENABLE1 */
- inb(ES1688P(chip, ENABLE1)); /* ENABLE1 */
- inb(ES1688P(chip, ENABLE2)); /* ENABLE2 */
- inb(ES1688P(chip, ENABLE1)); /* ENABLE1 */
- inb(ES1688P(chip, ENABLE2)); /* ENABLE2 */
- inb(ES1688P(chip, ENABLE1)); /* ENABLE1 */
- inb(ES1688P(chip, ENABLE1)); /* ENABLE1 */
- inb(ES1688P(chip, ENABLE2)); /* ENABLE2 */
- inb(ES1688P(chip, ENABLE1)); /* ENABLE1 */
- inb(ES1688P(chip, ENABLE0)); /* ENABLE0 */
+ scoped_guard(spinlock_irqsave, &chip->reg_lock) { /* Some ESS1688 cards need this */
+ inb(ES1688P(chip, ENABLE1)); /* ENABLE1 */
+ inb(ES1688P(chip, ENABLE1)); /* ENABLE1 */
+ inb(ES1688P(chip, ENABLE1)); /* ENABLE1 */
+ inb(ES1688P(chip, ENABLE2)); /* ENABLE2 */
+ inb(ES1688P(chip, ENABLE1)); /* ENABLE1 */
+ inb(ES1688P(chip, ENABLE2)); /* ENABLE2 */
+ inb(ES1688P(chip, ENABLE1)); /* ENABLE1 */
+ inb(ES1688P(chip, ENABLE1)); /* ENABLE1 */
+ inb(ES1688P(chip, ENABLE2)); /* ENABLE2 */
+ inb(ES1688P(chip, ENABLE1)); /* ENABLE1 */
+ inb(ES1688P(chip, ENABLE0)); /* ENABLE0 */
- if (snd_es1688_reset(chip) < 0) {
- dev_dbg(chip->card->dev, "ESS: [0x%lx] reset failed... 0x%x\n",
- chip->port, inb(ES1688P(chip, READ)));
- spin_unlock_irqrestore(&chip->reg_lock, flags);
- return -ENODEV;
- }
- snd_es1688_dsp_command(chip, 0xe7); /* return identification */
+ if (snd_es1688_reset(chip) < 0) {
+ dev_dbg(chip->card->dev, "ESS: [0x%lx] reset failed... 0x%x\n",
+ chip->port, inb(ES1688P(chip, READ)));
+ return -ENODEV;
+ }
+ snd_es1688_dsp_command(chip, 0xe7); /* return identification */
- for (i = 1000, major = minor = 0; i; i--) {
- if (inb(ES1688P(chip, DATA_AVAIL)) & 0x80) {
- if (major == 0) {
- major = inb(ES1688P(chip, READ));
- } else {
- minor = inb(ES1688P(chip, READ));
+ for (i = 1000, major = minor = 0; i; i--) {
+ if (inb(ES1688P(chip, DATA_AVAIL)) & 0x80) {
+ if (major == 0)
+ major = inb(ES1688P(chip, READ));
+ else
+ minor = inb(ES1688P(chip, READ));
}
}
}
- spin_unlock_irqrestore(&chip->reg_lock, flags);
-
dev_dbg(chip->card->dev,
"ESS: [0x%lx] found.. major = 0x%x, minor = 0x%x\n",
chip->port, major, minor);
@@ -169,15 +165,15 @@ static int snd_es1688_probe(struct snd_es1688 *chip)
return -ENODEV;
}
- spin_lock_irqsave(&chip->reg_lock, flags);
- snd_es1688_write(chip, 0xb1, 0x10); /* disable IRQ */
- snd_es1688_write(chip, 0xb2, 0x00); /* disable DMA */
- spin_unlock_irqrestore(&chip->reg_lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->reg_lock) {
+ snd_es1688_write(chip, 0xb1, 0x10); /* disable IRQ */
+ snd_es1688_write(chip, 0xb2, 0x00); /* disable DMA */
+ }
/* enable joystick, but disable OPL3 */
- spin_lock_irqsave(&chip->mixer_lock, flags);
- snd_es1688_mixer_write(chip, 0x40, 0x01);
- spin_unlock_irqrestore(&chip->mixer_lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->mixer_lock) {
+ snd_es1688_mixer_write(chip, 0x40, 0x01);
+ }
return 0;
}
@@ -185,7 +181,6 @@ static int snd_es1688_probe(struct snd_es1688 *chip)
static int snd_es1688_init(struct snd_es1688 * chip, int enable)
{
static const int irqs[16] = {-1, -1, 0, -1, -1, 1, -1, 2, -1, 0, 3, -1, -1, -1, -1, -1};
- unsigned long flags;
int cfg, irq_bits, dma, dma_bits, tmp, tmp1;
/* ok.. setup MPU-401 port and joystick and OPL3 */
@@ -214,14 +209,14 @@ static int snd_es1688_init(struct snd_es1688 * chip, int enable)
}
}
}
- spin_lock_irqsave(&chip->reg_lock, flags);
- snd_es1688_mixer_write(chip, 0x40, cfg);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->reg_lock) {
+ snd_es1688_mixer_write(chip, 0x40, cfg);
+ }
/* --- */
- spin_lock_irqsave(&chip->reg_lock, flags);
- snd_es1688_read(chip, 0xb1);
- snd_es1688_read(chip, 0xb2);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->reg_lock) {
+ snd_es1688_read(chip, 0xb1);
+ snd_es1688_read(chip, 0xb2);
+ }
if (enable) {
cfg = 0xf0; /* enable only DMA counter interrupt */
irq_bits = irqs[chip->irq & 0x0f];
@@ -235,9 +230,9 @@ static int snd_es1688_init(struct snd_es1688 * chip, int enable)
#endif
return -EINVAL;
}
- spin_lock_irqsave(&chip->reg_lock, flags);
- snd_es1688_write(chip, 0xb1, cfg | (irq_bits << 2));
- spin_unlock_irqrestore(&chip->reg_lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->reg_lock) {
+ snd_es1688_write(chip, 0xb1, cfg | (irq_bits << 2));
+ }
cfg = 0xf0; /* extended mode DMA enable */
dma = chip->dma8;
if (dma > 3 || dma == 2) {
@@ -254,20 +249,20 @@ static int snd_es1688_init(struct snd_es1688 * chip, int enable)
if (dma != 3)
dma_bits++;
}
- spin_lock_irqsave(&chip->reg_lock, flags);
- snd_es1688_write(chip, 0xb2, cfg | (dma_bits << 2));
- spin_unlock_irqrestore(&chip->reg_lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->reg_lock) {
+ snd_es1688_write(chip, 0xb2, cfg | (dma_bits << 2));
+ }
} else {
- spin_lock_irqsave(&chip->reg_lock, flags);
- snd_es1688_write(chip, 0xb1, 0x10); /* disable IRQ */
- snd_es1688_write(chip, 0xb2, 0x00); /* disable DMA */
- spin_unlock_irqrestore(&chip->reg_lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->reg_lock) {
+ snd_es1688_write(chip, 0xb1, 0x10); /* disable IRQ */
+ snd_es1688_write(chip, 0xb2, 0x00); /* disable DMA */
+ }
+ }
+ scoped_guard(spinlock_irqsave, &chip->reg_lock) {
+ snd_es1688_read(chip, 0xb1);
+ snd_es1688_read(chip, 0xb2);
+ snd_es1688_reset(chip);
}
- spin_lock_irqsave(&chip->reg_lock, flags);
- snd_es1688_read(chip, 0xb1);
- snd_es1688_read(chip, 0xb2);
- snd_es1688_reset(chip);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
return 0;
}
@@ -320,74 +315,70 @@ static int snd_es1688_trigger(struct snd_es1688 *chip, int cmd, unsigned char va
} else if (cmd != SNDRV_PCM_TRIGGER_START) {
return -EINVAL;
}
- spin_lock(&chip->reg_lock);
+ guard(spinlock)(&chip->reg_lock);
chip->trigger_value = value;
val = snd_es1688_read(chip, 0xb8);
- if ((val < 0) || (val & 0x0f) == value) {
- spin_unlock(&chip->reg_lock);
+ if ((val < 0) || (val & 0x0f) == value)
return -EINVAL; /* something is wrong */
- }
#if 0
dev_dbg(chip->card->dev, "trigger: val = 0x%x, value = 0x%x\n", val, value);
dev_dbg(chip->card->dev, "trigger: pointer = 0x%x\n",
snd_dma_pointer(chip->dma8, chip->dma_size));
#endif
snd_es1688_write(chip, 0xb8, (val & 0xf0) | value);
- spin_unlock(&chip->reg_lock);
return 0;
}
static int snd_es1688_playback_prepare(struct snd_pcm_substream *substream)
{
- unsigned long flags;
struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
unsigned int size = snd_pcm_lib_buffer_bytes(substream);
unsigned int count = snd_pcm_lib_period_bytes(substream);
chip->dma_size = size;
- spin_lock_irqsave(&chip->reg_lock, flags);
- snd_es1688_reset(chip);
- snd_es1688_set_rate(chip, substream);
- snd_es1688_write(chip, 0xb8, 4); /* auto init DMA mode */
- snd_es1688_write(chip, 0xa8, (snd_es1688_read(chip, 0xa8) & ~0x03) | (3 - runtime->channels));
- snd_es1688_write(chip, 0xb9, 2); /* demand mode (4 bytes/request) */
- if (runtime->channels == 1) {
- if (snd_pcm_format_width(runtime->format) == 8) {
- /* 8. bit mono */
- snd_es1688_write(chip, 0xb6, 0x80);
- snd_es1688_write(chip, 0xb7, 0x51);
- snd_es1688_write(chip, 0xb7, 0xd0);
+ scoped_guard(spinlock_irqsave, &chip->reg_lock) {
+ snd_es1688_reset(chip);
+ snd_es1688_set_rate(chip, substream);
+ snd_es1688_write(chip, 0xb8, 4); /* auto init DMA mode */
+ snd_es1688_write(chip, 0xa8, (snd_es1688_read(chip, 0xa8) & ~0x03) | (3 - runtime->channels));
+ snd_es1688_write(chip, 0xb9, 2); /* demand mode (4 bytes/request) */
+ if (runtime->channels == 1) {
+ if (snd_pcm_format_width(runtime->format) == 8) {
+ /* 8. bit mono */
+ snd_es1688_write(chip, 0xb6, 0x80);
+ snd_es1688_write(chip, 0xb7, 0x51);
+ snd_es1688_write(chip, 0xb7, 0xd0);
+ } else {
+ /* 16. bit mono */
+ snd_es1688_write(chip, 0xb6, 0x00);
+ snd_es1688_write(chip, 0xb7, 0x71);
+ snd_es1688_write(chip, 0xb7, 0xf4);
+ }
} else {
- /* 16. bit mono */
- snd_es1688_write(chip, 0xb6, 0x00);
- snd_es1688_write(chip, 0xb7, 0x71);
- snd_es1688_write(chip, 0xb7, 0xf4);
- }
- } else {
- if (snd_pcm_format_width(runtime->format) == 8) {
- /* 8. bit stereo */
- snd_es1688_write(chip, 0xb6, 0x80);
- snd_es1688_write(chip, 0xb7, 0x51);
- snd_es1688_write(chip, 0xb7, 0x98);
- } else {
- /* 16. bit stereo */
- snd_es1688_write(chip, 0xb6, 0x00);
- snd_es1688_write(chip, 0xb7, 0x71);
- snd_es1688_write(chip, 0xb7, 0xbc);
+ if (snd_pcm_format_width(runtime->format) == 8) {
+ /* 8. bit stereo */
+ snd_es1688_write(chip, 0xb6, 0x80);
+ snd_es1688_write(chip, 0xb7, 0x51);
+ snd_es1688_write(chip, 0xb7, 0x98);
+ } else {
+ /* 16. bit stereo */
+ snd_es1688_write(chip, 0xb6, 0x00);
+ snd_es1688_write(chip, 0xb7, 0x71);
+ snd_es1688_write(chip, 0xb7, 0xbc);
+ }
}
+ snd_es1688_write(chip, 0xb1, (snd_es1688_read(chip, 0xb1) & 0x0f) | 0x50);
+ snd_es1688_write(chip, 0xb2, (snd_es1688_read(chip, 0xb2) & 0x0f) | 0x50);
+ snd_es1688_dsp_command(chip, ES1688_DSP_CMD_SPKON);
}
- snd_es1688_write(chip, 0xb1, (snd_es1688_read(chip, 0xb1) & 0x0f) | 0x50);
- snd_es1688_write(chip, 0xb2, (snd_es1688_read(chip, 0xb2) & 0x0f) | 0x50);
- snd_es1688_dsp_command(chip, ES1688_DSP_CMD_SPKON);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
/* --- */
count = -count;
snd_dma_program(chip->dma8, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
- spin_lock_irqsave(&chip->reg_lock, flags);
- snd_es1688_write(chip, 0xa4, (unsigned char) count);
- snd_es1688_write(chip, 0xa5, (unsigned char) (count >> 8));
- spin_unlock_irqrestore(&chip->reg_lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->reg_lock) {
+ snd_es1688_write(chip, 0xa4, (unsigned char) count);
+ snd_es1688_write(chip, 0xa5, (unsigned char) (count >> 8));
+ }
return 0;
}
@@ -400,51 +391,50 @@ static int snd_es1688_playback_trigger(struct snd_pcm_substream *substream,
static int snd_es1688_capture_prepare(struct snd_pcm_substream *substream)
{
- unsigned long flags;
struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
unsigned int size = snd_pcm_lib_buffer_bytes(substream);
unsigned int count = snd_pcm_lib_period_bytes(substream);
chip->dma_size = size;
- spin_lock_irqsave(&chip->reg_lock, flags);
- snd_es1688_reset(chip);
- snd_es1688_set_rate(chip, substream);
- snd_es1688_dsp_command(chip, ES1688_DSP_CMD_SPKOFF);
- snd_es1688_write(chip, 0xb8, 0x0e); /* auto init DMA mode */
- snd_es1688_write(chip, 0xa8, (snd_es1688_read(chip, 0xa8) & ~0x03) | (3 - runtime->channels));
- snd_es1688_write(chip, 0xb9, 2); /* demand mode (4 bytes/request) */
- if (runtime->channels == 1) {
- if (snd_pcm_format_width(runtime->format) == 8) {
- /* 8. bit mono */
- snd_es1688_write(chip, 0xb7, 0x51);
- snd_es1688_write(chip, 0xb7, 0xd0);
+ scoped_guard(spinlock_irqsave, &chip->reg_lock) {
+ snd_es1688_reset(chip);
+ snd_es1688_set_rate(chip, substream);
+ snd_es1688_dsp_command(chip, ES1688_DSP_CMD_SPKOFF);
+ snd_es1688_write(chip, 0xb8, 0x0e); /* auto init DMA mode */
+ snd_es1688_write(chip, 0xa8, (snd_es1688_read(chip, 0xa8) & ~0x03) | (3 - runtime->channels));
+ snd_es1688_write(chip, 0xb9, 2); /* demand mode (4 bytes/request) */
+ if (runtime->channels == 1) {
+ if (snd_pcm_format_width(runtime->format) == 8) {
+ /* 8. bit mono */
+ snd_es1688_write(chip, 0xb7, 0x51);
+ snd_es1688_write(chip, 0xb7, 0xd0);
+ } else {
+ /* 16. bit mono */
+ snd_es1688_write(chip, 0xb7, 0x71);
+ snd_es1688_write(chip, 0xb7, 0xf4);
+ }
} else {
- /* 16. bit mono */
- snd_es1688_write(chip, 0xb7, 0x71);
- snd_es1688_write(chip, 0xb7, 0xf4);
- }
- } else {
- if (snd_pcm_format_width(runtime->format) == 8) {
- /* 8. bit stereo */
- snd_es1688_write(chip, 0xb7, 0x51);
- snd_es1688_write(chip, 0xb7, 0x98);
- } else {
- /* 16. bit stereo */
- snd_es1688_write(chip, 0xb7, 0x71);
- snd_es1688_write(chip, 0xb7, 0xbc);
+ if (snd_pcm_format_width(runtime->format) == 8) {
+ /* 8. bit stereo */
+ snd_es1688_write(chip, 0xb7, 0x51);
+ snd_es1688_write(chip, 0xb7, 0x98);
+ } else {
+ /* 16. bit stereo */
+ snd_es1688_write(chip, 0xb7, 0x71);
+ snd_es1688_write(chip, 0xb7, 0xbc);
+ }
}
+ snd_es1688_write(chip, 0xb1, (snd_es1688_read(chip, 0xb1) & 0x0f) | 0x50);
+ snd_es1688_write(chip, 0xb2, (snd_es1688_read(chip, 0xb2) & 0x0f) | 0x50);
}
- snd_es1688_write(chip, 0xb1, (snd_es1688_read(chip, 0xb1) & 0x0f) | 0x50);
- snd_es1688_write(chip, 0xb2, (snd_es1688_read(chip, 0xb2) & 0x0f) | 0x50);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
/* --- */
count = -count;
snd_dma_program(chip->dma8, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
- spin_lock_irqsave(&chip->reg_lock, flags);
- snd_es1688_write(chip, 0xa4, (unsigned char) count);
- snd_es1688_write(chip, 0xa5, (unsigned char) (count >> 8));
- spin_unlock_irqrestore(&chip->reg_lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->reg_lock) {
+ snd_es1688_write(chip, 0xa4, (unsigned char) count);
+ snd_es1688_write(chip, 0xa5, (unsigned char) (count >> 8));
+ }
return 0;
}
@@ -738,19 +728,17 @@ static int snd_es1688_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem
static int snd_es1688_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
unsigned char oval, nval;
int change;
if (ucontrol->value.enumerated.item[0] > 8)
return -EINVAL;
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
oval = snd_es1688_mixer_read(chip, ES1688_REC_DEV);
nval = (ucontrol->value.enumerated.item[0] & 7) | (oval & ~15);
change = nval != oval;
if (change)
snd_es1688_mixer_write(chip, ES1688_REC_DEV, nval);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
return change;
}
@@ -774,15 +762,13 @@ static int snd_es1688_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_
static int snd_es1688_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int reg = kcontrol->private_value & 0xff;
int shift = (kcontrol->private_value >> 8) & 0xff;
int mask = (kcontrol->private_value >> 16) & 0xff;
int invert = (kcontrol->private_value >> 24) & 0xff;
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
ucontrol->value.integer.value[0] = (snd_es1688_mixer_read(chip, reg) >> shift) & mask;
- spin_unlock_irqrestore(&chip->reg_lock, flags);
if (invert)
ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
return 0;
@@ -791,7 +777,6 @@ static int snd_es1688_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_e
static int snd_es1688_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int reg = kcontrol->private_value & 0xff;
int shift = (kcontrol->private_value >> 8) & 0xff;
int mask = (kcontrol->private_value >> 16) & 0xff;
@@ -803,13 +788,12 @@ static int snd_es1688_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_e
if (invert)
nval = mask - nval;
nval <<= shift;
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
oval = snd_es1688_mixer_read(chip, reg);
nval = (oval & ~(mask << shift)) | nval;
change = nval != oval;
if (change)
snd_es1688_mixer_write(chip, reg, nval);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
return change;
}
@@ -833,7 +817,6 @@ static int snd_es1688_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_
static int snd_es1688_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int left_reg = kcontrol->private_value & 0xff;
int right_reg = (kcontrol->private_value >> 8) & 0xff;
int shift_left = (kcontrol->private_value >> 16) & 0x07;
@@ -842,7 +825,7 @@ static int snd_es1688_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_e
int invert = (kcontrol->private_value >> 22) & 1;
unsigned char left, right;
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
if (left_reg < 0xa0)
left = snd_es1688_mixer_read(chip, left_reg);
else
@@ -854,7 +837,6 @@ static int snd_es1688_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_e
right = snd_es1688_read(chip, right_reg);
} else
right = left;
- spin_unlock_irqrestore(&chip->reg_lock, flags);
ucontrol->value.integer.value[0] = (left >> shift_left) & mask;
ucontrol->value.integer.value[1] = (right >> shift_right) & mask;
if (invert) {
@@ -867,7 +849,6 @@ static int snd_es1688_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_e
static int snd_es1688_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int left_reg = kcontrol->private_value & 0xff;
int right_reg = (kcontrol->private_value >> 8) & 0xff;
int shift_left = (kcontrol->private_value >> 16) & 0x07;
@@ -885,7 +866,7 @@ static int snd_es1688_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_e
}
val1 <<= shift_left;
val2 <<= shift_right;
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
if (left_reg != right_reg) {
if (left_reg < 0xa0)
oval1 = snd_es1688_mixer_read(chip, left_reg);
@@ -923,7 +904,6 @@ static int snd_es1688_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_e
}
}
- spin_unlock_irqrestore(&chip->reg_lock, flags);
return change;
}
--
2.50.1
^ permalink raw reply related [flat|nested] 19+ messages in thread* [PATCH 06/18] ALSA: es18xx: Use guard() for spin locks
2025-08-29 14:52 [PATCH 00/18] ALSA: Use auto-cleanup macros for ISA drivers Takashi Iwai
` (4 preceding siblings ...)
2025-08-29 14:52 ` [PATCH 05/18] ALSA: es1688: " Takashi Iwai
@ 2025-08-29 14:52 ` Takashi Iwai
2025-08-29 14:52 ` [PATCH 07/18] ALSA: gus: Use guard() for mutex locks Takashi Iwai
` (11 subsequent siblings)
17 siblings, 0 replies; 19+ messages in thread
From: Takashi Iwai @ 2025-08-29 14:52 UTC (permalink / raw)
To: linux-sound
Clean up the code using guard() for spin locks.
Merely code refactoring, and no behavior change.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
sound/isa/es18xx.c | 58 ++++++++++++++++++----------------------------
1 file changed, 22 insertions(+), 36 deletions(-)
diff --git a/sound/isa/es18xx.c b/sound/isa/es18xx.c
index 3e89a84c6244..1da7b400a17b 100644
--- a/sound/isa/es18xx.c
+++ b/sound/isa/es18xx.c
@@ -185,16 +185,13 @@ static int snd_es18xx_dsp_get_byte(struct snd_es18xx *chip)
static int snd_es18xx_write(struct snd_es18xx *chip,
unsigned char reg, unsigned char data)
{
- unsigned long flags;
int ret;
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
ret = snd_es18xx_dsp_command(chip, reg);
if (ret < 0)
- goto end;
+ return ret;
ret = snd_es18xx_dsp_command(chip, data);
- end:
- spin_unlock_irqrestore(&chip->reg_lock, flags);
#ifdef REG_DEBUG
dev_dbg(chip->card->dev, "Reg %02x set to %02x\n", reg, data);
#endif
@@ -203,22 +200,20 @@ static int snd_es18xx_write(struct snd_es18xx *chip,
static int snd_es18xx_read(struct snd_es18xx *chip, unsigned char reg)
{
- unsigned long flags;
int ret, data;
- spin_lock_irqsave(&chip->reg_lock, flags);
+
+ guard(spinlock_irqsave)(&chip->reg_lock);
ret = snd_es18xx_dsp_command(chip, 0xC0);
if (ret < 0)
- goto end;
+ return ret;
ret = snd_es18xx_dsp_command(chip, reg);
if (ret < 0)
- goto end;
+ return ret;
data = snd_es18xx_dsp_get_byte(chip);
ret = data;
#ifdef REG_DEBUG
dev_dbg(chip->card->dev, "Reg %02x now is %02x (%d)\n", reg, data, ret);
#endif
- end:
- spin_unlock_irqrestore(&chip->reg_lock, flags);
return ret;
}
@@ -228,47 +223,41 @@ static int snd_es18xx_bits(struct snd_es18xx *chip, unsigned char reg,
{
int ret;
unsigned char old, new, oval;
- unsigned long flags;
- spin_lock_irqsave(&chip->reg_lock, flags);
+
+ guard(spinlock_irqsave)(&chip->reg_lock);
ret = snd_es18xx_dsp_command(chip, 0xC0);
if (ret < 0)
- goto end;
+ return ret;
ret = snd_es18xx_dsp_command(chip, reg);
if (ret < 0)
- goto end;
+ return ret;
ret = snd_es18xx_dsp_get_byte(chip);
- if (ret < 0) {
- goto end;
- }
+ if (ret < 0)
+ return ret;
old = ret;
oval = old & mask;
if (val != oval) {
ret = snd_es18xx_dsp_command(chip, reg);
if (ret < 0)
- goto end;
+ return ret;
new = (old & ~mask) | (val & mask);
ret = snd_es18xx_dsp_command(chip, new);
if (ret < 0)
- goto end;
+ return ret;
#ifdef REG_DEBUG
dev_dbg(chip->card->dev, "Reg %02x was %02x, set to %02x (%d)\n",
reg, old, new, ret);
#endif
}
- ret = oval;
- end:
- spin_unlock_irqrestore(&chip->reg_lock, flags);
- return ret;
+ return oval;
}
static inline void snd_es18xx_mixer_write(struct snd_es18xx *chip,
unsigned char reg, unsigned char data)
{
- unsigned long flags;
- spin_lock_irqsave(&chip->mixer_lock, flags);
+ guard(spinlock_irqsave)(&chip->mixer_lock);
outb(reg, chip->port + 0x04);
outb(data, chip->port + 0x05);
- spin_unlock_irqrestore(&chip->mixer_lock, flags);
#ifdef REG_DEBUG
dev_dbg(chip->card->dev, "Mixer reg %02x set to %02x\n", reg, data);
#endif
@@ -276,12 +265,11 @@ static inline void snd_es18xx_mixer_write(struct snd_es18xx *chip,
static inline int snd_es18xx_mixer_read(struct snd_es18xx *chip, unsigned char reg)
{
- unsigned long flags;
int data;
- spin_lock_irqsave(&chip->mixer_lock, flags);
+
+ guard(spinlock_irqsave)(&chip->mixer_lock);
outb(reg, chip->port + 0x04);
data = inb(chip->port + 0x05);
- spin_unlock_irqrestore(&chip->mixer_lock, flags);
#ifdef REG_DEBUG
dev_dbg(chip->card->dev, "Mixer reg %02x now is %02x\n", reg, data);
#endif
@@ -293,8 +281,8 @@ static inline int snd_es18xx_mixer_bits(struct snd_es18xx *chip, unsigned char r
unsigned char mask, unsigned char val)
{
unsigned char old, new, oval;
- unsigned long flags;
- spin_lock_irqsave(&chip->mixer_lock, flags);
+
+ guard(spinlock_irqsave)(&chip->mixer_lock);
outb(reg, chip->port + 0x04);
old = inb(chip->port + 0x05);
oval = old & mask;
@@ -306,7 +294,6 @@ static inline int snd_es18xx_mixer_bits(struct snd_es18xx *chip, unsigned char r
reg, old, new);
#endif
}
- spin_unlock_irqrestore(&chip->mixer_lock, flags);
return oval;
}
@@ -314,14 +301,13 @@ static inline int snd_es18xx_mixer_writable(struct snd_es18xx *chip, unsigned ch
unsigned char mask)
{
int old, expected, new;
- unsigned long flags;
- spin_lock_irqsave(&chip->mixer_lock, flags);
+
+ guard(spinlock_irqsave)(&chip->mixer_lock);
outb(reg, chip->port + 0x04);
old = inb(chip->port + 0x05);
expected = old ^ mask;
outb(expected, chip->port + 0x05);
new = inb(chip->port + 0x05);
- spin_unlock_irqrestore(&chip->mixer_lock, flags);
#ifdef REG_DEBUG
dev_dbg(chip->card->dev, "Mixer reg %02x was %02x, set to %02x, now is %02x\n",
reg, old, expected, new);
--
2.50.1
^ permalink raw reply related [flat|nested] 19+ messages in thread* [PATCH 07/18] ALSA: gus: Use guard() for mutex locks
2025-08-29 14:52 [PATCH 00/18] ALSA: Use auto-cleanup macros for ISA drivers Takashi Iwai
` (5 preceding siblings ...)
2025-08-29 14:52 ` [PATCH 06/18] ALSA: es18xx: " Takashi Iwai
@ 2025-08-29 14:52 ` Takashi Iwai
2025-08-29 14:52 ` [PATCH 08/18] ALSA: gus: Use guard() for spin locks Takashi Iwai
` (10 subsequent siblings)
17 siblings, 0 replies; 19+ messages in thread
From: Takashi Iwai @ 2025-08-29 14:52 UTC (permalink / raw)
To: linux-sound
Replace the manual mutex lock/unlock pairs with guard() for code
simplification.
As replaced with the guard(mutex), no longer used snd_gf1_mem_lock()
is dropped, too.
Only code refactoring, and no behavior change.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
include/sound/gus.h | 1 -
sound/isa/gus/gus_dma.c | 10 +++-------
sound/isa/gus/gus_main.c | 1 -
sound/isa/gus/gus_mem.c | 33 ++++++---------------------------
4 files changed, 9 insertions(+), 36 deletions(-)
diff --git a/include/sound/gus.h b/include/sound/gus.h
index 1c8fb6c93e50..321ae93625eb 100644
--- a/include/sound/gus.h
+++ b/include/sound/gus.h
@@ -515,7 +515,6 @@ struct _SND_IW_LFO_PROGRAM {
/* gus_mem.c */
-void snd_gf1_mem_lock(struct snd_gf1_mem * alloc, int xup);
int snd_gf1_mem_xfree(struct snd_gf1_mem * alloc, struct snd_gf1_mem_block * block);
struct snd_gf1_mem_block *snd_gf1_mem_alloc(struct snd_gf1_mem * alloc, int owner,
char *name, int size, int w_16,
diff --git a/sound/isa/gus/gus_dma.c b/sound/isa/gus/gus_dma.c
index bb5a4e2fbfb3..7b2e7878adc7 100644
--- a/sound/isa/gus/gus_dma.c
+++ b/sound/isa/gus/gus_dma.c
@@ -143,18 +143,15 @@ static void snd_gf1_dma_interrupt(struct snd_gus_card * gus)
int snd_gf1_dma_init(struct snd_gus_card * gus)
{
- mutex_lock(&gus->dma_mutex);
+ guard(mutex)(&gus->dma_mutex);
gus->gf1.dma_shared++;
- if (gus->gf1.dma_shared > 1) {
- mutex_unlock(&gus->dma_mutex);
+ if (gus->gf1.dma_shared > 1)
return 0;
- }
gus->gf1.interrupt_handler_dma_write = snd_gf1_dma_interrupt;
gus->gf1.dma_data_pcm =
gus->gf1.dma_data_pcm_last =
gus->gf1.dma_data_synth =
gus->gf1.dma_data_synth_last = NULL;
- mutex_unlock(&gus->dma_mutex);
return 0;
}
@@ -162,7 +159,7 @@ int snd_gf1_dma_done(struct snd_gus_card * gus)
{
struct snd_gf1_dma_block *block;
- mutex_lock(&gus->dma_mutex);
+ guard(mutex)(&gus->dma_mutex);
gus->gf1.dma_shared--;
if (!gus->gf1.dma_shared) {
snd_dma_disable(gus->gf1.dma1);
@@ -179,7 +176,6 @@ int snd_gf1_dma_done(struct snd_gus_card * gus)
gus->gf1.dma_data_pcm_last =
gus->gf1.dma_data_synth_last = NULL;
}
- mutex_unlock(&gus->dma_mutex);
return 0;
}
diff --git a/sound/isa/gus/gus_main.c b/sound/isa/gus/gus_main.c
index 873ef4046cd6..a82185c86143 100644
--- a/sound/isa/gus/gus_main.c
+++ b/sound/isa/gus/gus_main.c
@@ -447,4 +447,3 @@ EXPORT_SYMBOL(snd_gf1_translate_freq);
EXPORT_SYMBOL(snd_gf1_mem_alloc);
EXPORT_SYMBOL(snd_gf1_mem_xfree);
EXPORT_SYMBOL(snd_gf1_mem_free);
-EXPORT_SYMBOL(snd_gf1_mem_lock);
diff --git a/sound/isa/gus/gus_mem.c b/sound/isa/gus/gus_mem.c
index 054058779db6..8d95d8d5abdf 100644
--- a/sound/isa/gus/gus_mem.c
+++ b/sound/isa/gus/gus_mem.c
@@ -15,15 +15,6 @@ static void snd_gf1_mem_info_read(struct snd_info_entry *entry,
struct snd_info_buffer *buffer);
#endif
-void snd_gf1_mem_lock(struct snd_gf1_mem * alloc, int xup)
-{
- if (!xup) {
- mutex_lock(&alloc->memory_mutex);
- } else {
- mutex_unlock(&alloc->memory_mutex);
- }
-}
-
static struct snd_gf1_mem_block *
snd_gf1_mem_xalloc(struct snd_gf1_mem *alloc, struct snd_gf1_mem_block *block,
const char *name)
@@ -50,7 +41,6 @@ snd_gf1_mem_xalloc(struct snd_gf1_mem *alloc, struct snd_gf1_mem_block *block,
alloc->first = nblock;
else
nblock->prev->next = nblock;
- mutex_unlock(&alloc->memory_mutex);
return nblock;
}
pblock = pblock->next;
@@ -71,7 +61,6 @@ int snd_gf1_mem_xfree(struct snd_gf1_mem * alloc, struct snd_gf1_mem_block * blo
{
if (block->share) { /* ok.. shared block */
block->share--;
- mutex_unlock(&alloc->memory_mutex);
return 0;
}
if (alloc->first == block) {
@@ -183,7 +172,7 @@ struct snd_gf1_mem_block *snd_gf1_mem_alloc(struct snd_gf1_mem * alloc, int owne
{
struct snd_gf1_mem_block block, *nblock;
- snd_gf1_mem_lock(alloc, 0);
+ guard(mutex)(&alloc->memory_mutex);
if (share_id != NULL) {
nblock = snd_gf1_mem_share(alloc, share_id);
if (nblock != NULL) {
@@ -193,36 +182,27 @@ struct snd_gf1_mem_block *snd_gf1_mem_alloc(struct snd_gf1_mem * alloc, int owne
goto __std;
}
nblock->share++;
- snd_gf1_mem_lock(alloc, 1);
return NULL;
}
}
__std:
- if (snd_gf1_mem_find(alloc, &block, size, w_16, align) < 0) {
- snd_gf1_mem_lock(alloc, 1);
+ if (snd_gf1_mem_find(alloc, &block, size, w_16, align) < 0)
return NULL;
- }
if (share_id != NULL)
memcpy(&block.share_id, share_id, sizeof(block.share_id));
block.owner = owner;
nblock = snd_gf1_mem_xalloc(alloc, &block, name);
- snd_gf1_mem_lock(alloc, 1);
return nblock;
}
int snd_gf1_mem_free(struct snd_gf1_mem * alloc, unsigned int address)
{
- int result;
struct snd_gf1_mem_block *block;
- snd_gf1_mem_lock(alloc, 0);
+ guard(mutex)(&alloc->memory_mutex);
block = snd_gf1_mem_look(alloc, address);
- if (block) {
- result = snd_gf1_mem_xfree(alloc, block);
- snd_gf1_mem_lock(alloc, 1);
- return result;
- }
- snd_gf1_mem_lock(alloc, 1);
+ if (block)
+ return snd_gf1_mem_xfree(alloc, block);
return -EINVAL;
}
@@ -282,7 +262,7 @@ static void snd_gf1_mem_info_read(struct snd_info_entry *entry,
gus = entry->private_data;
alloc = &gus->gf1.mem_alloc;
- mutex_lock(&alloc->memory_mutex);
+ guard(mutex)(&alloc->memory_mutex);
snd_iprintf(buffer, "8-bit banks : \n ");
for (i = 0; i < 4; i++)
snd_iprintf(buffer, "0x%06x (%04ik)%s", alloc->banks_8[i].address, alloc->banks_8[i].size >> 10, i + 1 < 4 ? "," : "");
@@ -326,7 +306,6 @@ static void snd_gf1_mem_info_read(struct snd_info_entry *entry,
}
snd_iprintf(buffer, " Total: memory = %i, used = %i, free = %i\n",
total, used, total - used);
- mutex_unlock(&alloc->memory_mutex);
#if 0
ultra_iprintf(buffer, " Verify: free = %i, max 8-bit block = %i, max 16-bit block = %i\n",
ultra_memory_free_size(card, &card->gf1.mem_alloc),
--
2.50.1
^ permalink raw reply related [flat|nested] 19+ messages in thread* [PATCH 08/18] ALSA: gus: Use guard() for spin locks
2025-08-29 14:52 [PATCH 00/18] ALSA: Use auto-cleanup macros for ISA drivers Takashi Iwai
` (6 preceding siblings ...)
2025-08-29 14:52 ` [PATCH 07/18] ALSA: gus: Use guard() for mutex locks Takashi Iwai
@ 2025-08-29 14:52 ` Takashi Iwai
2025-08-29 14:52 ` [PATCH 09/18] ALSA: msnd: " Takashi Iwai
` (9 subsequent siblings)
17 siblings, 0 replies; 19+ messages in thread
From: Takashi Iwai @ 2025-08-29 14:52 UTC (permalink / raw)
To: linux-sound
Clean up the code using guard() for spin locks.
Merely code refactoring, and no behavior change.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
sound/isa/gus/gus_dma.c | 78 ++++++++--------
sound/isa/gus/gus_dram.c | 8 +-
sound/isa/gus/gus_io.c | 65 +++-----------
sound/isa/gus/gus_main.c | 64 +++++++-------
sound/isa/gus/gus_mixer.c | 12 +--
sound/isa/gus/gus_pcm.c | 177 +++++++++++++++++--------------------
sound/isa/gus/gus_reset.c | 66 +++++---------
sound/isa/gus/gus_timer.c | 16 +---
sound/isa/gus/gus_uart.c | 24 ++---
sound/isa/gus/gusextreme.c | 21 +++--
sound/isa/gus/interwave.c | 33 ++++---
11 files changed, 224 insertions(+), 340 deletions(-)
diff --git a/sound/isa/gus/gus_dma.c b/sound/isa/gus/gus_dma.c
index 7b2e7878adc7..ffc69e26227e 100644
--- a/sound/isa/gus/gus_dma.c
+++ b/sound/isa/gus/gus_dma.c
@@ -11,12 +11,9 @@
static void snd_gf1_dma_ack(struct snd_gus_card * gus)
{
- unsigned long flags;
-
- spin_lock_irqsave(&gus->reg_lock, flags);
+ guard(spinlock_irqsave)(&gus->reg_lock);
snd_gf1_write8(gus, SNDRV_GF1_GB_DRAM_DMA_CONTROL, 0x00);
snd_gf1_look8(gus, SNDRV_GF1_GB_DRAM_DMA_CONTROL);
- spin_unlock_irqrestore(&gus->reg_lock, flags);
}
static void snd_gf1_dma_program(struct snd_gus_card * gus,
@@ -25,7 +22,6 @@ static void snd_gf1_dma_program(struct snd_gus_card * gus,
unsigned int count,
unsigned int cmd)
{
- unsigned long flags;
unsigned int address;
unsigned char dma_cmd;
unsigned int address_high;
@@ -70,7 +66,7 @@ static void snd_gf1_dma_program(struct snd_gus_card * gus,
"address = 0x%x, count = 0x%x, dma_cmd = 0x%x\n",
address << 1, count, dma_cmd);
#endif
- spin_lock_irqsave(&gus->reg_lock, flags);
+ guard(spinlock_irqsave)(&gus->reg_lock);
if (gus->gf1.enh_mode) {
address_high = ((address >> 16) & 0x000000f0) | (address & 0x0000000f);
snd_gf1_write16(gus, SNDRV_GF1_GW_DRAM_DMA_LOW, (unsigned short) (address >> 4));
@@ -78,7 +74,6 @@ static void snd_gf1_dma_program(struct snd_gus_card * gus,
} else
snd_gf1_write16(gus, SNDRV_GF1_GW_DRAM_DMA_LOW, (unsigned short) (address >> 4));
snd_gf1_write8(gus, SNDRV_GF1_GB_DRAM_DMA_CONTROL, dma_cmd);
- spin_unlock_irqrestore(&gus->reg_lock, flags);
}
static struct snd_gf1_dma_block *snd_gf1_dma_next_block(struct snd_gus_card * gus)
@@ -120,16 +115,15 @@ static void snd_gf1_dma_interrupt(struct snd_gus_card * gus)
snd_gf1_dma_ack(gus);
if (gus->gf1.dma_ack)
gus->gf1.dma_ack(gus, gus->gf1.dma_private_data);
- spin_lock(&gus->dma_lock);
- if (gus->gf1.dma_data_pcm == NULL &&
- gus->gf1.dma_data_synth == NULL) {
- gus->gf1.dma_ack = NULL;
- gus->gf1.dma_flags &= ~SNDRV_GF1_DMA_TRIGGER;
- spin_unlock(&gus->dma_lock);
- return;
+ scoped_guard(spinlock, &gus->dma_lock) {
+ if (gus->gf1.dma_data_pcm == NULL &&
+ gus->gf1.dma_data_synth == NULL) {
+ gus->gf1.dma_ack = NULL;
+ gus->gf1.dma_flags &= ~SNDRV_GF1_DMA_TRIGGER;
+ return;
+ }
+ block = snd_gf1_dma_next_block(gus);
}
- block = snd_gf1_dma_next_block(gus);
- spin_unlock(&gus->dma_lock);
if (!block)
return;
snd_gf1_dma_program(gus, block->addr, block->buf_addr, block->count, (unsigned short) block->cmd);
@@ -184,8 +178,8 @@ int snd_gf1_dma_transfer_block(struct snd_gus_card * gus,
int atomic,
int synth)
{
- unsigned long flags;
struct snd_gf1_dma_block *block;
+ struct snd_gf1_dma_block *free_block = NULL;
block = kmalloc(sizeof(*block), atomic ? GFP_ATOMIC : GFP_KERNEL);
if (!block)
@@ -206,34 +200,36 @@ int snd_gf1_dma_transfer_block(struct snd_gus_card * gus,
"gus->gf1.dma_data_pcm = 0x%lx\n",
(long)gus->gf1.dma_data_pcm);
- spin_lock_irqsave(&gus->dma_lock, flags);
- if (synth) {
- if (gus->gf1.dma_data_synth_last) {
- gus->gf1.dma_data_synth_last->next = block;
- gus->gf1.dma_data_synth_last = block;
+ scoped_guard(spinlock_irqsave, &gus->dma_lock) {
+ if (synth) {
+ if (gus->gf1.dma_data_synth_last) {
+ gus->gf1.dma_data_synth_last->next = block;
+ gus->gf1.dma_data_synth_last = block;
+ } else {
+ gus->gf1.dma_data_synth =
+ gus->gf1.dma_data_synth_last = block;
+ }
} else {
- gus->gf1.dma_data_synth =
- gus->gf1.dma_data_synth_last = block;
+ if (gus->gf1.dma_data_pcm_last) {
+ gus->gf1.dma_data_pcm_last->next = block;
+ gus->gf1.dma_data_pcm_last = block;
+ } else {
+ gus->gf1.dma_data_pcm =
+ gus->gf1.dma_data_pcm_last = block;
+ }
}
- } else {
- if (gus->gf1.dma_data_pcm_last) {
- gus->gf1.dma_data_pcm_last->next = block;
- gus->gf1.dma_data_pcm_last = block;
- } else {
- gus->gf1.dma_data_pcm =
- gus->gf1.dma_data_pcm_last = block;
+ if (!(gus->gf1.dma_flags & SNDRV_GF1_DMA_TRIGGER)) {
+ gus->gf1.dma_flags |= SNDRV_GF1_DMA_TRIGGER;
+ free_block = snd_gf1_dma_next_block(gus);
}
}
- if (!(gus->gf1.dma_flags & SNDRV_GF1_DMA_TRIGGER)) {
- gus->gf1.dma_flags |= SNDRV_GF1_DMA_TRIGGER;
- block = snd_gf1_dma_next_block(gus);
- spin_unlock_irqrestore(&gus->dma_lock, flags);
- if (block == NULL)
- return 0;
- snd_gf1_dma_program(gus, block->addr, block->buf_addr, block->count, (unsigned short) block->cmd);
- kfree(block);
- return 0;
+
+ if (free_block) {
+ snd_gf1_dma_program(gus, free_block->addr, free_block->buf_addr,
+ free_block->count,
+ (unsigned short)free_block->cmd);
+ kfree(free_block);
}
- spin_unlock_irqrestore(&gus->dma_lock, flags);
+
return 0;
}
diff --git a/sound/isa/gus/gus_dram.c b/sound/isa/gus/gus_dram.c
index 5cebc0119d0a..50fe738ee3ea 100644
--- a/sound/isa/gus/gus_dram.c
+++ b/sound/isa/gus/gus_dram.c
@@ -13,7 +13,6 @@
static int snd_gus_dram_poke(struct snd_gus_card *gus, char __user *_buffer,
unsigned int address, unsigned int size)
{
- unsigned long flags;
unsigned int size1, size2;
char buffer[256], *pbuffer;
@@ -22,11 +21,10 @@ static int snd_gus_dram_poke(struct snd_gus_card *gus, char __user *_buffer,
if (copy_from_user(buffer, _buffer, size1))
return -EFAULT;
if (gus->interwave) {
- spin_lock_irqsave(&gus->reg_lock, flags);
+ guard(spinlock_irqsave)(&gus->reg_lock);
snd_gf1_write8(gus, SNDRV_GF1_GB_MEMORY_CONTROL, 0x01);
snd_gf1_dram_addr(gus, address);
outsb(GUSP(gus, DRAM), buffer, size1);
- spin_unlock_irqrestore(&gus->reg_lock, flags);
address += size1;
} else {
pbuffer = buffer;
@@ -51,19 +49,17 @@ static int snd_gus_dram_peek(struct snd_gus_card *gus, char __user *_buffer,
unsigned int address, unsigned int size,
int rom)
{
- unsigned long flags;
unsigned int size1, size2;
char buffer[256], *pbuffer;
while (size > 0) {
size1 = size > sizeof(buffer) ? sizeof(buffer) : size;
if (gus->interwave) {
- spin_lock_irqsave(&gus->reg_lock, flags);
+ guard(spinlock_irqsave)(&gus->reg_lock);
snd_gf1_write8(gus, SNDRV_GF1_GB_MEMORY_CONTROL, rom ? 0x03 : 0x01);
snd_gf1_dram_addr(gus, address);
insb(GUSP(gus, DRAM), buffer, size1);
snd_gf1_write8(gus, SNDRV_GF1_GB_MEMORY_CONTROL, 0x01);
- spin_unlock_irqrestore(&gus->reg_lock, flags);
address += size1;
} else {
pbuffer = buffer;
diff --git a/sound/isa/gus/gus_io.c b/sound/isa/gus/gus_io.c
index f167eb8d516b..3e6f35084f26 100644
--- a/sound/isa/gus/gus_io.c
+++ b/sound/isa/gus/gus_io.c
@@ -177,55 +177,36 @@ unsigned int snd_gf1_read_addr(struct snd_gus_card * gus,
void snd_gf1_i_ctrl_stop(struct snd_gus_card * gus, unsigned char reg)
{
- unsigned long flags;
-
- spin_lock_irqsave(&gus->reg_lock, flags);
+ guard(spinlock_irqsave)(&gus->reg_lock);
__snd_gf1_ctrl_stop(gus, reg);
- spin_unlock_irqrestore(&gus->reg_lock, flags);
}
void snd_gf1_i_write8(struct snd_gus_card * gus,
unsigned char reg,
unsigned char data)
{
- unsigned long flags;
-
- spin_lock_irqsave(&gus->reg_lock, flags);
+ guard(spinlock_irqsave)(&gus->reg_lock);
__snd_gf1_write8(gus, reg, data);
- spin_unlock_irqrestore(&gus->reg_lock, flags);
}
unsigned char snd_gf1_i_look8(struct snd_gus_card * gus, unsigned char reg)
{
- unsigned long flags;
- unsigned char res;
-
- spin_lock_irqsave(&gus->reg_lock, flags);
- res = __snd_gf1_look8(gus, reg);
- spin_unlock_irqrestore(&gus->reg_lock, flags);
- return res;
+ guard(spinlock_irqsave)(&gus->reg_lock);
+ return __snd_gf1_look8(gus, reg);
}
void snd_gf1_i_write16(struct snd_gus_card * gus,
unsigned char reg,
unsigned int data)
{
- unsigned long flags;
-
- spin_lock_irqsave(&gus->reg_lock, flags);
+ guard(spinlock_irqsave)(&gus->reg_lock);
__snd_gf1_write16(gus, reg, data);
- spin_unlock_irqrestore(&gus->reg_lock, flags);
}
unsigned short snd_gf1_i_look16(struct snd_gus_card * gus, unsigned char reg)
{
- unsigned long flags;
- unsigned short res;
-
- spin_lock_irqsave(&gus->reg_lock, flags);
- res = __snd_gf1_look16(gus, reg);
- spin_unlock_irqrestore(&gus->reg_lock, flags);
- return res;
+ guard(spinlock_irqsave)(&gus->reg_lock);
+ return __snd_gf1_look16(gus, reg);
}
void snd_gf1_dram_addr(struct snd_gus_card * gus, unsigned int addr)
@@ -242,9 +223,7 @@ void snd_gf1_dram_addr(struct snd_gus_card * gus, unsigned int addr)
void snd_gf1_poke(struct snd_gus_card * gus, unsigned int addr, unsigned char data)
{
- unsigned long flags;
-
- spin_lock_irqsave(&gus->reg_lock, flags);
+ guard(spinlock_irqsave)(&gus->reg_lock);
outb(SNDRV_GF1_GW_DRAM_IO_LOW, gus->gf1.reg_regsel);
mb();
outw((unsigned short) addr, gus->gf1.reg_data16);
@@ -254,15 +233,11 @@ void snd_gf1_poke(struct snd_gus_card * gus, unsigned int addr, unsigned char da
outb((unsigned char) (addr >> 16), gus->gf1.reg_data8);
mb();
outb(data, gus->gf1.reg_dram);
- spin_unlock_irqrestore(&gus->reg_lock, flags);
}
unsigned char snd_gf1_peek(struct snd_gus_card * gus, unsigned int addr)
{
- unsigned long flags;
- unsigned char res;
-
- spin_lock_irqsave(&gus->reg_lock, flags);
+ guard(spinlock_irqsave)(&gus->reg_lock);
outb(SNDRV_GF1_GW_DRAM_IO_LOW, gus->gf1.reg_regsel);
mb();
outw((unsigned short) addr, gus->gf1.reg_data16);
@@ -271,20 +246,16 @@ unsigned char snd_gf1_peek(struct snd_gus_card * gus, unsigned int addr)
mb();
outb((unsigned char) (addr >> 16), gus->gf1.reg_data8);
mb();
- res = inb(gus->gf1.reg_dram);
- spin_unlock_irqrestore(&gus->reg_lock, flags);
- return res;
+ return inb(gus->gf1.reg_dram);
}
#if 0
void snd_gf1_pokew(struct snd_gus_card * gus, unsigned int addr, unsigned short data)
{
- unsigned long flags;
-
if (!gus->interwave)
dev_dbg(gus->card->dev, "%s - GF1!!!\n", __func__);
- spin_lock_irqsave(&gus->reg_lock, flags);
+ guard(spinlock_irqsave)(&gus->reg_lock);
outb(SNDRV_GF1_GW_DRAM_IO_LOW, gus->gf1.reg_regsel);
mb();
outw((unsigned short) addr, gus->gf1.reg_data16);
@@ -296,17 +267,13 @@ void snd_gf1_pokew(struct snd_gus_card * gus, unsigned int addr, unsigned short
outb(SNDRV_GF1_GW_DRAM_IO16, gus->gf1.reg_regsel);
mb();
outw(data, gus->gf1.reg_data16);
- spin_unlock_irqrestore(&gus->reg_lock, flags);
}
unsigned short snd_gf1_peekw(struct snd_gus_card * gus, unsigned int addr)
{
- unsigned long flags;
- unsigned short res;
-
if (!gus->interwave)
dev_dbg(gus->card->dev, "%s - GF1!!!\n", __func__);
- spin_lock_irqsave(&gus->reg_lock, flags);
+ guard(spinlock_irqsave)(&gus->reg_lock);
outb(SNDRV_GF1_GW_DRAM_IO_LOW, gus->gf1.reg_regsel);
mb();
outw((unsigned short) addr, gus->gf1.reg_data16);
@@ -317,23 +284,20 @@ unsigned short snd_gf1_peekw(struct snd_gus_card * gus, unsigned int addr)
mb();
outb(SNDRV_GF1_GW_DRAM_IO16, gus->gf1.reg_regsel);
mb();
- res = inw(gus->gf1.reg_data16);
- spin_unlock_irqrestore(&gus->reg_lock, flags);
- return res;
+ return inw(gus->gf1.reg_data16);
}
void snd_gf1_dram_setmem(struct snd_gus_card * gus, unsigned int addr,
unsigned short value, unsigned int count)
{
unsigned long port;
- unsigned long flags;
if (!gus->interwave)
dev_dbg(gus->card->dev, "%s - GF1!!!\n", __func__);
addr &= ~1;
count >>= 1;
port = GUSP(gus, GF1DATALOW);
- spin_lock_irqsave(&gus->reg_lock, flags);
+ guard(spinlock_irqsave)(&gus->reg_lock);
outb(SNDRV_GF1_GW_DRAM_IO_LOW, gus->gf1.reg_regsel);
mb();
outw((unsigned short) addr, gus->gf1.reg_data16);
@@ -345,7 +309,6 @@ void snd_gf1_dram_setmem(struct snd_gus_card * gus, unsigned int addr,
outb(SNDRV_GF1_GW_DRAM_IO16, gus->gf1.reg_regsel);
while (count--)
outw(value, port);
- spin_unlock_irqrestore(&gus->reg_lock, flags);
}
#endif /* 0 */
diff --git a/sound/isa/gus/gus_main.c b/sound/isa/gus/gus_main.c
index a82185c86143..5f50a39c6f16 100644
--- a/sound/isa/gus/gus_main.c
+++ b/sound/isa/gus/gus_main.c
@@ -42,16 +42,14 @@ static int snd_gus_joystick_get(struct snd_kcontrol *kcontrol, struct snd_ctl_el
static int snd_gus_joystick_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int change;
unsigned char nval;
nval = ucontrol->value.integer.value[0] & 31;
- spin_lock_irqsave(&gus->reg_lock, flags);
+ guard(spinlock_irqsave)(&gus->reg_lock);
change = gus->joystick_dac != nval;
gus->joystick_dac = nval;
snd_gf1_write8(gus, SNDRV_GF1_GB_JOYSTICK_DAC_LEVEL, gus->joystick_dac);
- spin_unlock_irqrestore(&gus->reg_lock, flags);
return change;
}
@@ -249,7 +247,6 @@ static int snd_gus_detect_memory(struct snd_gus_card * gus)
static int snd_gus_init_dma_irq(struct snd_gus_card * gus, int latches)
{
struct snd_card *card;
- unsigned long flags;
int irq, dma1, dma2;
static const unsigned char irqs[16] =
{0, 0, 1, 3, 0, 2, 0, 4, 0, 1, 0, 5, 6, 0, 0, 7};
@@ -292,34 +289,34 @@ static int snd_gus_init_dma_irq(struct snd_gus_card * gus, int latches)
card->mixer.mix_ctrl_reg |= 0x10;
#endif
- spin_lock_irqsave(&gus->reg_lock, flags);
- outb(5, GUSP(gus, REGCNTRLS));
- outb(gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
- outb(0x00, GUSP(gus, IRQDMACNTRLREG));
- outb(0, GUSP(gus, REGCNTRLS));
- spin_unlock_irqrestore(&gus->reg_lock, flags);
+ scoped_guard(spinlock_irqsave, &gus->reg_lock) {
+ outb(5, GUSP(gus, REGCNTRLS));
+ outb(gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
+ outb(0x00, GUSP(gus, IRQDMACNTRLREG));
+ outb(0, GUSP(gus, REGCNTRLS));
+ }
udelay(100);
- spin_lock_irqsave(&gus->reg_lock, flags);
- outb(0x00 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
- outb(dma1, GUSP(gus, IRQDMACNTRLREG));
- if (latches) {
- outb(0x40 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
- outb(irq, GUSP(gus, IRQDMACNTRLREG));
+ scoped_guard(spinlock_irqsave, &gus->reg_lock) {
+ outb(0x00 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
+ outb(dma1, GUSP(gus, IRQDMACNTRLREG));
+ if (latches) {
+ outb(0x40 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
+ outb(irq, GUSP(gus, IRQDMACNTRLREG));
+ }
}
- spin_unlock_irqrestore(&gus->reg_lock, flags);
udelay(100);
- spin_lock_irqsave(&gus->reg_lock, flags);
- outb(0x00 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
- outb(dma1, GUSP(gus, IRQDMACNTRLREG));
- if (latches) {
- outb(0x40 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
- outb(irq, GUSP(gus, IRQDMACNTRLREG));
+ scoped_guard(spinlock_irqsave, &gus->reg_lock) {
+ outb(0x00 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
+ outb(dma1, GUSP(gus, IRQDMACNTRLREG));
+ if (latches) {
+ outb(0x40 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
+ outb(irq, GUSP(gus, IRQDMACNTRLREG));
+ }
}
- spin_unlock_irqrestore(&gus->reg_lock, flags);
snd_gf1_delay(gus);
@@ -327,26 +324,25 @@ static int snd_gus_init_dma_irq(struct snd_gus_card * gus, int latches)
gus->mix_cntrl_reg |= 0x08; /* enable latches */
else
gus->mix_cntrl_reg &= ~0x08; /* disable latches */
- spin_lock_irqsave(&gus->reg_lock, flags);
- outb(gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
- outb(0, GUSP(gus, GF1PAGE));
- spin_unlock_irqrestore(&gus->reg_lock, flags);
+ scoped_guard(spinlock_irqsave, &gus->reg_lock) {
+ outb(gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
+ outb(0, GUSP(gus, GF1PAGE));
+ }
return 0;
}
static int snd_gus_check_version(struct snd_gus_card * gus)
{
- unsigned long flags;
unsigned char val, rev;
struct snd_card *card;
card = gus->card;
- spin_lock_irqsave(&gus->reg_lock, flags);
- outb(0x20, GUSP(gus, REGCNTRLS));
- val = inb(GUSP(gus, REGCNTRLS));
- rev = inb(GUSP(gus, BOARDVERSION));
- spin_unlock_irqrestore(&gus->reg_lock, flags);
+ scoped_guard(spinlock_irqsave, &gus->reg_lock) {
+ outb(0x20, GUSP(gus, REGCNTRLS));
+ val = inb(GUSP(gus, REGCNTRLS));
+ rev = inb(GUSP(gus, BOARDVERSION));
+ }
dev_dbg(card->dev, "GF1 [0x%lx] init - val = 0x%x, rev = 0x%x\n", gus->gf1.port, val, rev);
strscpy(card->driver, "GUS");
strscpy(card->longname, "Gravis UltraSound Classic (2.4)");
diff --git a/sound/isa/gus/gus_mixer.c b/sound/isa/gus/gus_mixer.c
index 60c3a8219770..9bfdb4e45a5d 100644
--- a/sound/isa/gus/gus_mixer.c
+++ b/sound/isa/gus/gus_mixer.c
@@ -37,7 +37,6 @@ static int snd_gf1_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem
static int snd_gf1_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int shift = kcontrol->private_value & 0xff;
int invert = (kcontrol->private_value >> 8) & 1;
int change;
@@ -47,13 +46,12 @@ static int snd_gf1_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem
if (invert)
nval ^= 1;
nval <<= shift;
- spin_lock_irqsave(&gus->reg_lock, flags);
+ guard(spinlock_irqsave)(&gus->reg_lock);
oval = gus->mix_cntrl_reg;
nval = (oval & ~(1 << shift)) | nval;
change = nval != oval;
outb(gus->mix_cntrl_reg = nval, GUSP(gus, MIXCNTRLREG));
outb(gus->gf1.active_voice = 0, GUSP(gus, GF1PAGE));
- spin_unlock_irqrestore(&gus->reg_lock, flags);
return change;
}
@@ -75,14 +73,12 @@ static int snd_ics_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_ele
static int snd_ics_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int addr = kcontrol->private_value & 0xff;
unsigned char left, right;
- spin_lock_irqsave(&gus->reg_lock, flags);
+ guard(spinlock_irqsave)(&gus->reg_lock);
left = gus->gf1.ics_regs[addr][0];
right = gus->gf1.ics_regs[addr][1];
- spin_unlock_irqrestore(&gus->reg_lock, flags);
ucontrol->value.integer.value[0] = left & 127;
ucontrol->value.integer.value[1] = right & 127;
return 0;
@@ -91,14 +87,13 @@ static int snd_ics_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem
static int snd_ics_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int addr = kcontrol->private_value & 0xff;
int change;
unsigned char val1, val2, oval1, oval2;
val1 = ucontrol->value.integer.value[0] & 127;
val2 = ucontrol->value.integer.value[1] & 127;
- spin_lock_irqsave(&gus->reg_lock, flags);
+ guard(spinlock_irqsave)(&gus->reg_lock);
oval1 = gus->gf1.ics_regs[addr][0];
oval2 = gus->gf1.ics_regs[addr][1];
change = val1 != oval1 || val2 != oval2;
@@ -116,7 +111,6 @@ static int snd_ics_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem
outb(2, GUSP(gus, MIXDATAPORT));
outb(addr | 3, GUSP(gus, MIXCNTRLPORT));
outb((unsigned char) val2, GUSP(gus, MIXDATAPORT));
- spin_unlock_irqrestore(&gus->reg_lock, flags);
return change;
}
diff --git a/sound/isa/gus/gus_pcm.c b/sound/isa/gus/gus_pcm.c
index 8b9b7b8d92b2..9249cbff30f3 100644
--- a/sound/isa/gus/gus_pcm.c
+++ b/sound/isa/gus/gus_pcm.c
@@ -89,7 +89,6 @@ static void snd_gf1_pcm_trigger_up(struct snd_pcm_substream *substream)
struct snd_pcm_runtime *runtime = substream->runtime;
struct gus_pcm_private *pcmp = runtime->private_data;
struct snd_gus_card * gus = pcmp->gus;
- unsigned long flags;
unsigned char voice_ctrl, ramp_ctrl;
unsigned short rate;
unsigned int curr, begin, end;
@@ -97,14 +96,12 @@ static void snd_gf1_pcm_trigger_up(struct snd_pcm_substream *substream)
unsigned char pan;
unsigned int voice;
- spin_lock_irqsave(&pcmp->lock, flags);
- if (pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE) {
- spin_unlock_irqrestore(&pcmp->lock, flags);
- return;
+ scoped_guard(spinlock_irqsave, &pcmp->lock) {
+ if (pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE)
+ return;
+ pcmp->flags |= SNDRV_GF1_PCM_PFLG_ACTIVE;
+ pcmp->final_volume = 0;
}
- pcmp->flags |= SNDRV_GF1_PCM_PFLG_ACTIVE;
- pcmp->final_volume = 0;
- spin_unlock_irqrestore(&pcmp->lock, flags);
rate = snd_gf1_translate_freq(gus, runtime->rate << 4);
/* enable WAVE IRQ */
voice_ctrl = snd_pcm_format_width(runtime->format) == 16 ? 0x24 : 0x20;
@@ -121,7 +118,7 @@ static void snd_gf1_pcm_trigger_up(struct snd_pcm_substream *substream)
end -= snd_pcm_format_width(runtime->format) == 16 ? 2 : 1;
pan = runtime->channels == 2 ? (!voice ? 1 : 14) : 8;
vol = !voice ? gus->gf1.pcm_volume_level_left : gus->gf1.pcm_volume_level_right;
- spin_lock_irqsave(&gus->reg_lock, flags);
+ guard(spinlock_irqsave)(&gus->reg_lock);
snd_gf1_select_voice(gus, pcmp->pvoices[voice]->number);
snd_gf1_write8(gus, SNDRV_GF1_VB_PAN, pan);
snd_gf1_write16(gus, SNDRV_GF1_VW_FREQUENCY, rate);
@@ -137,9 +134,9 @@ static void snd_gf1_pcm_trigger_up(struct snd_pcm_substream *substream)
snd_gf1_delay(gus);
snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl);
}
- spin_unlock_irqrestore(&gus->reg_lock, flags);
}
- spin_lock_irqsave(&gus->reg_lock, flags);
+
+ guard(spinlock_irqsave)(&gus->reg_lock);
for (voice = 0; voice < pcmp->voices; voice++) {
snd_gf1_select_voice(gus, pcmp->pvoices[voice]->number);
if (gus->gf1.enh_mode)
@@ -156,7 +153,6 @@ static void snd_gf1_pcm_trigger_up(struct snd_pcm_substream *substream)
voice_ctrl &= ~0x20; /* disable IRQ for next voice */
}
}
- spin_unlock_irqrestore(&gus->reg_lock, flags);
}
static void snd_gf1_pcm_interrupt_wave(struct snd_gus_card * gus,
@@ -182,52 +178,52 @@ static void snd_gf1_pcm_interrupt_wave(struct snd_gus_card * gus,
gus = pcmp->gus;
runtime = pcmp->substream->runtime;
- spin_lock(&gus->reg_lock);
- snd_gf1_select_voice(gus, pvoice->number);
- voice_ctrl = snd_gf1_read8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL) & ~0x8b;
- ramp_ctrl = (snd_gf1_read8(gus, SNDRV_GF1_VB_VOLUME_CONTROL) & ~0xa4) | 0x03;
+ scoped_guard(spinlock, &gus->reg_lock) {
+ snd_gf1_select_voice(gus, pvoice->number);
+ voice_ctrl = snd_gf1_read8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL) & ~0x8b;
+ ramp_ctrl = (snd_gf1_read8(gus, SNDRV_GF1_VB_VOLUME_CONTROL) & ~0xa4) | 0x03;
#if 0
- snd_gf1_select_voice(gus, pvoice->number);
- dev_dbg(gus->card->dev, "position = 0x%x\n",
- (snd_gf1_read_addr(gus, SNDRV_GF1_VA_CURRENT, voice_ctrl & 4) >> 4));
- snd_gf1_select_voice(gus, pcmp->pvoices[1]->number);
- dev_dbg(gus->card->dev, "position = 0x%x\n",
- (snd_gf1_read_addr(gus, SNDRV_GF1_VA_CURRENT, voice_ctrl & 4) >> 4));
- snd_gf1_select_voice(gus, pvoice->number);
+ snd_gf1_select_voice(gus, pvoice->number);
+ dev_dbg(gus->card->dev, "position = 0x%x\n",
+ (snd_gf1_read_addr(gus, SNDRV_GF1_VA_CURRENT, voice_ctrl & 4) >> 4));
+ snd_gf1_select_voice(gus, pcmp->pvoices[1]->number);
+ dev_dbg(gus->card->dev, "position = 0x%x\n",
+ (snd_gf1_read_addr(gus, SNDRV_GF1_VA_CURRENT, voice_ctrl & 4) >> 4));
+ snd_gf1_select_voice(gus, pvoice->number);
#endif
- pcmp->bpos++;
- pcmp->bpos %= pcmp->blocks;
- if (pcmp->bpos + 1 >= pcmp->blocks) { /* last block? */
- voice_ctrl |= 0x08; /* enable loop */
- } else {
- ramp_ctrl |= 0x04; /* enable rollover */
- }
- end = pcmp->memory + (((pcmp->bpos + 1) * pcmp->block_size) / runtime->channels);
- end -= voice_ctrl & 4 ? 2 : 1;
- step = pcmp->dma_size / runtime->channels;
- voice_ctrl |= 0x20;
- if (!pcmp->final_volume) {
- ramp_ctrl |= 0x20;
- ramp_ctrl &= ~0x03;
- }
- for (idx = 0; idx < pcmp->voices; idx++, end += step) {
- snd_gf1_select_voice(gus, pcmp->pvoices[idx]->number);
- snd_gf1_write_addr(gus, SNDRV_GF1_VA_END, end << 4, voice_ctrl & 4);
- snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl);
- snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl);
- voice_ctrl &= ~0x20;
- }
- if (!gus->gf1.enh_mode) {
- snd_gf1_delay(gus);
+ pcmp->bpos++;
+ pcmp->bpos %= pcmp->blocks;
+ if (pcmp->bpos + 1 >= pcmp->blocks) { /* last block? */
+ voice_ctrl |= 0x08; /* enable loop */
+ } else {
+ ramp_ctrl |= 0x04; /* enable rollover */
+ }
+ end = pcmp->memory + (((pcmp->bpos + 1) * pcmp->block_size) / runtime->channels);
+ end -= voice_ctrl & 4 ? 2 : 1;
+ step = pcmp->dma_size / runtime->channels;
voice_ctrl |= 0x20;
- for (idx = 0; idx < pcmp->voices; idx++) {
+ if (!pcmp->final_volume) {
+ ramp_ctrl |= 0x20;
+ ramp_ctrl &= ~0x03;
+ }
+ for (idx = 0; idx < pcmp->voices; idx++, end += step) {
snd_gf1_select_voice(gus, pcmp->pvoices[idx]->number);
+ snd_gf1_write_addr(gus, SNDRV_GF1_VA_END, end << 4, voice_ctrl & 4);
snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl);
snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl);
voice_ctrl &= ~0x20;
}
+ if (!gus->gf1.enh_mode) {
+ snd_gf1_delay(gus);
+ voice_ctrl |= 0x20;
+ for (idx = 0; idx < pcmp->voices; idx++) {
+ snd_gf1_select_voice(gus, pcmp->pvoices[idx]->number);
+ snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl);
+ snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl);
+ voice_ctrl &= ~0x20;
+ }
+ }
}
- spin_unlock(&gus->reg_lock);
snd_pcm_period_elapsed(pcmp->substream);
#if 0
@@ -252,10 +248,10 @@ static void snd_gf1_pcm_interrupt_volume(struct snd_gus_card * gus,
struct gus_pcm_private *pcmp = pvoice->private_data;
/* stop ramp, but leave rollover bit untouched */
- spin_lock(&gus->reg_lock);
- snd_gf1_select_voice(gus, pvoice->number);
- snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL);
- spin_unlock(&gus->reg_lock);
+ scoped_guard(spinlock, &gus->reg_lock) {
+ snd_gf1_select_voice(gus, pvoice->number);
+ snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL);
+ }
if (pcmp == NULL)
return;
/* are we active? */
@@ -266,11 +262,10 @@ static void snd_gf1_pcm_interrupt_volume(struct snd_gus_card * gus,
if (pcmp->substream == NULL)
return;
vol = !cvoice ? gus->gf1.pcm_volume_level_left : gus->gf1.pcm_volume_level_right;
- spin_lock(&gus->reg_lock);
+ guard(spinlock)(&gus->reg_lock);
snd_gf1_select_voice(gus, pvoice->number);
snd_gf1_write16(gus, SNDRV_GF1_VW_VOLUME, vol);
pcmp->final_volume = 1;
- spin_unlock(&gus->reg_lock);
}
static void snd_gf1_pcm_volume_change(struct snd_gus_card * gus)
@@ -282,7 +277,6 @@ static int snd_gf1_pcm_poke_block(struct snd_gus_card *gus, unsigned char *buf,
int w16, int invert)
{
unsigned int len;
- unsigned long flags;
while (count > 0) {
len = count;
@@ -290,7 +284,7 @@ static int snd_gf1_pcm_poke_block(struct snd_gus_card *gus, unsigned char *buf,
len = 512;
count -= len;
if (gus->interwave) {
- spin_lock_irqsave(&gus->reg_lock, flags);
+ guard(spinlock_irqsave)(&gus->reg_lock);
snd_gf1_write8(gus, SNDRV_GF1_GB_MEMORY_CONTROL, 0x01 | (invert ? 0x08 : 0x00));
snd_gf1_dram_addr(gus, pos);
if (w16) {
@@ -299,7 +293,6 @@ static int snd_gf1_pcm_poke_block(struct snd_gus_card *gus, unsigned char *buf,
} else {
outsb(GUSP(gus, DRAM), buf, len);
}
- spin_unlock_irqrestore(&gus->reg_lock, flags);
buf += 512;
pos += 512;
} else {
@@ -479,9 +472,9 @@ static int snd_gf1_pcm_playback_trigger(struct snd_pcm_substream *substream,
if (cmd == SNDRV_PCM_TRIGGER_START) {
snd_gf1_pcm_trigger_up(substream);
} else if (cmd == SNDRV_PCM_TRIGGER_STOP) {
- spin_lock(&pcmp->lock);
- pcmp->flags &= ~SNDRV_GF1_PCM_PFLG_ACTIVE;
- spin_unlock(&pcmp->lock);
+ scoped_guard(spinlock, &pcmp->lock) {
+ pcmp->flags &= ~SNDRV_GF1_PCM_PFLG_ACTIVE;
+ }
voice = pcmp->pvoices[0]->number;
snd_gf1_stop_voices(gus, voice, voice);
if (pcmp->pvoices[1]) {
@@ -503,7 +496,7 @@ static snd_pcm_uframes_t snd_gf1_pcm_playback_pointer(struct snd_pcm_substream *
unsigned char voice_ctrl;
pos = 0;
- spin_lock(&gus->reg_lock);
+ guard(spinlock)(&gus->reg_lock);
if (pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE) {
snd_gf1_select_voice(gus, pcmp->pvoices[0]->number);
voice_ctrl = snd_gf1_read8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL);
@@ -512,7 +505,6 @@ static snd_pcm_uframes_t snd_gf1_pcm_playback_pointer(struct snd_pcm_substream *
pos <<= 1;
pos = bytes_to_frames(runtime, pos);
}
- spin_unlock(&gus->reg_lock);
return pos;
}
@@ -572,10 +564,9 @@ static int snd_gf1_pcm_capture_trigger(struct snd_pcm_substream *substream,
return -EINVAL;
}
- spin_lock(&gus->reg_lock);
+ guard(spinlock)(&gus->reg_lock);
snd_gf1_write8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL, val);
snd_gf1_look8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL);
- spin_unlock(&gus->reg_lock);
return 0;
}
@@ -724,19 +715,16 @@ static int snd_gf1_pcm_volume_info(struct snd_kcontrol *kcontrol, struct snd_ctl
static int snd_gf1_pcm_volume_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
- spin_lock_irqsave(&gus->pcm_volume_level_lock, flags);
+ guard(spinlock_irqsave)(&gus->pcm_volume_level_lock);
ucontrol->value.integer.value[0] = gus->gf1.pcm_volume_level_left1;
ucontrol->value.integer.value[1] = gus->gf1.pcm_volume_level_right1;
- spin_unlock_irqrestore(&gus->pcm_volume_level_lock, flags);
return 0;
}
static int snd_gf1_pcm_volume_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int change;
unsigned int idx;
unsigned short val1, val2, vol;
@@ -745,33 +733,32 @@ static int snd_gf1_pcm_volume_put(struct snd_kcontrol *kcontrol, struct snd_ctl_
val1 = ucontrol->value.integer.value[0] & 127;
val2 = ucontrol->value.integer.value[1] & 127;
- spin_lock_irqsave(&gus->pcm_volume_level_lock, flags);
- change = val1 != gus->gf1.pcm_volume_level_left1 ||
- val2 != gus->gf1.pcm_volume_level_right1;
- gus->gf1.pcm_volume_level_left1 = val1;
- gus->gf1.pcm_volume_level_right1 = val2;
- gus->gf1.pcm_volume_level_left = snd_gf1_lvol_to_gvol_raw(val1 << 9) << 4;
- gus->gf1.pcm_volume_level_right = snd_gf1_lvol_to_gvol_raw(val2 << 9) << 4;
- spin_unlock_irqrestore(&gus->pcm_volume_level_lock, flags);
- /* are we active? */
- spin_lock_irqsave(&gus->voice_alloc, flags);
- for (idx = 0; idx < 32; idx++) {
- pvoice = &gus->gf1.voices[idx];
- if (!pvoice->pcm)
- continue;
- pcmp = pvoice->private_data;
- if (!(pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE))
- continue;
- /* load real volume - better precision */
- spin_lock(&gus->reg_lock);
- snd_gf1_select_voice(gus, pvoice->number);
- snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL);
- vol = pvoice == pcmp->pvoices[0] ? gus->gf1.pcm_volume_level_left : gus->gf1.pcm_volume_level_right;
- snd_gf1_write16(gus, SNDRV_GF1_VW_VOLUME, vol);
- pcmp->final_volume = 1;
- spin_unlock(&gus->reg_lock);
+ scoped_guard(spinlock_irqsave, &gus->pcm_volume_level_lock) {
+ change = val1 != gus->gf1.pcm_volume_level_left1 ||
+ val2 != gus->gf1.pcm_volume_level_right1;
+ gus->gf1.pcm_volume_level_left1 = val1;
+ gus->gf1.pcm_volume_level_right1 = val2;
+ gus->gf1.pcm_volume_level_left = snd_gf1_lvol_to_gvol_raw(val1 << 9) << 4;
+ gus->gf1.pcm_volume_level_right = snd_gf1_lvol_to_gvol_raw(val2 << 9) << 4;
+ }
+ /* are we active? */
+ scoped_guard(spinlock_irqsave, &gus->voice_alloc) {
+ for (idx = 0; idx < 32; idx++) {
+ pvoice = &gus->gf1.voices[idx];
+ if (!pvoice->pcm)
+ continue;
+ pcmp = pvoice->private_data;
+ if (!(pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE))
+ continue;
+ /* load real volume - better precision */
+ guard(spinlock)(&gus->reg_lock);
+ snd_gf1_select_voice(gus, pvoice->number);
+ snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL);
+ vol = pvoice == pcmp->pvoices[0] ? gus->gf1.pcm_volume_level_left : gus->gf1.pcm_volume_level_right;
+ snd_gf1_write16(gus, SNDRV_GF1_VW_VOLUME, vol);
+ pcmp->final_volume = 1;
+ }
}
- spin_unlock_irqrestore(&gus->voice_alloc, flags);
return change;
}
diff --git a/sound/isa/gus/gus_reset.c b/sound/isa/gus/gus_reset.c
index 326bc6028885..5cbace8369f8 100644
--- a/sound/isa/gus/gus_reset.c
+++ b/sound/isa/gus/gus_reset.c
@@ -83,26 +83,20 @@ void snd_gf1_set_default_handlers(struct snd_gus_card * gus, unsigned int what)
static void snd_gf1_clear_regs(struct snd_gus_card * gus)
{
- unsigned long flags;
-
- spin_lock_irqsave(&gus->reg_lock, flags);
+ guard(spinlock_irqsave)(&gus->reg_lock);
inb(GUSP(gus, IRQSTAT));
snd_gf1_write8(gus, 0x41, 0); /* DRAM DMA Control Register */
snd_gf1_write8(gus, 0x45, 0); /* Timer Control */
snd_gf1_write8(gus, 0x49, 0); /* Sampling Control Register */
- spin_unlock_irqrestore(&gus->reg_lock, flags);
}
static void snd_gf1_look_regs(struct snd_gus_card * gus)
{
- unsigned long flags;
-
- spin_lock_irqsave(&gus->reg_lock, flags);
+ guard(spinlock_irqsave)(&gus->reg_lock);
snd_gf1_look8(gus, 0x41); /* DRAM DMA Control Register */
snd_gf1_look8(gus, 0x49); /* Sampling Control Register */
inb(GUSP(gus, IRQSTAT));
snd_gf1_read8(gus, 0x0f); /* IRQ Source Register */
- spin_unlock_irqrestore(&gus->reg_lock, flags);
}
/*
@@ -111,9 +105,7 @@ static void snd_gf1_look_regs(struct snd_gus_card * gus)
void snd_gf1_smart_stop_voice(struct snd_gus_card * gus, unsigned short voice)
{
- unsigned long flags;
-
- spin_lock_irqsave(&gus->reg_lock, flags);
+ guard(spinlock_irqsave)(&gus->reg_lock);
snd_gf1_select_voice(gus, voice);
#if 0
dev_dbg(gus->card->dev,
@@ -122,14 +114,11 @@ void snd_gf1_smart_stop_voice(struct snd_gus_card * gus, unsigned short voice)
#endif
snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_ADDRESS_CONTROL);
snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL);
- spin_unlock_irqrestore(&gus->reg_lock, flags);
}
void snd_gf1_stop_voice(struct snd_gus_card * gus, unsigned short voice)
{
- unsigned long flags;
-
- spin_lock_irqsave(&gus->reg_lock, flags);
+ guard(spinlock_irqsave)(&gus->reg_lock);
snd_gf1_select_voice(gus, voice);
#if 0
dev_dbg(gus->card->dev,
@@ -140,13 +129,11 @@ void snd_gf1_stop_voice(struct snd_gus_card * gus, unsigned short voice)
snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL);
if (gus->gf1.enh_mode)
snd_gf1_write8(gus, SNDRV_GF1_VB_ACCUMULATOR, 0);
- spin_unlock_irqrestore(&gus->reg_lock, flags);
}
static void snd_gf1_clear_voices(struct snd_gus_card * gus, unsigned short v_min,
unsigned short v_max)
{
- unsigned long flags;
unsigned int daddr;
unsigned short i, w_16;
@@ -156,7 +143,7 @@ static void snd_gf1_clear_voices(struct snd_gus_card * gus, unsigned short v_min
if (gus->gf1.syn_voices)
gus->gf1.syn_voices[i].flags = ~VFLG_DYNAMIC;
#endif
- spin_lock_irqsave(&gus->reg_lock, flags);
+ guard(spinlock_irqsave)(&gus->reg_lock);
snd_gf1_select_voice(gus, i);
snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_ADDRESS_CONTROL); /* Voice Control Register = voice stop */
snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL); /* Volume Ramp Control Register = ramp off */
@@ -177,19 +164,17 @@ static void snd_gf1_clear_voices(struct snd_gus_card * gus, unsigned short v_min
snd_gf1_write16(gus, SNDRV_GF1_VW_EFFECT_VOLUME, 0);
snd_gf1_write16(gus, SNDRV_GF1_VW_EFFECT_VOLUME_FINAL, 0);
}
- spin_unlock_irqrestore(&gus->reg_lock, flags);
}
}
void snd_gf1_stop_voices(struct snd_gus_card * gus, unsigned short v_min, unsigned short v_max)
{
- unsigned long flags;
short i, ramp_ok;
unsigned short ramp_end;
if (!in_interrupt()) { /* this can't be done in interrupt */
for (i = v_min, ramp_ok = 0; i <= v_max; i++) {
- spin_lock_irqsave(&gus->reg_lock, flags);
+ guard(spinlock_irqsave)(&gus->reg_lock);
snd_gf1_select_voice(gus, i);
ramp_end = snd_gf1_read16(gus, 9) >> 8;
if (ramp_end > SNDRV_GF1_MIN_OFFSET) {
@@ -203,7 +188,6 @@ void snd_gf1_stop_voices(struct snd_gus_card * gus, unsigned short v_min, unsign
snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, 0x40);
}
}
- spin_unlock_irqrestore(&gus->reg_lock, flags);
}
msleep_interruptible(50);
}
@@ -236,21 +220,17 @@ static void snd_gf1_alloc_voice_use(struct snd_gus_card * gus,
struct snd_gus_voice *snd_gf1_alloc_voice(struct snd_gus_card * gus, int type, int client, int port)
{
struct snd_gus_voice *pvoice;
- unsigned long flags;
int idx;
- spin_lock_irqsave(&gus->voice_alloc, flags);
+ guard(spinlock_irqsave)(&gus->voice_alloc);
if (type == SNDRV_GF1_VOICE_TYPE_PCM) {
- if (gus->gf1.pcm_alloc_voices >= gus->gf1.pcm_channels) {
- spin_unlock_irqrestore(&gus->voice_alloc, flags);
+ if (gus->gf1.pcm_alloc_voices >= gus->gf1.pcm_channels)
return NULL;
- }
}
for (idx = 0; idx < 32; idx++) {
pvoice = &gus->gf1.voices[idx];
if (!pvoice->use) {
snd_gf1_alloc_voice_use(gus, pvoice, type, client, port);
- spin_unlock_irqrestore(&gus->voice_alloc, flags);
return pvoice;
}
}
@@ -259,32 +239,29 @@ struct snd_gus_voice *snd_gf1_alloc_voice(struct snd_gus_card * gus, int type, i
if (pvoice->midi && !pvoice->client) {
snd_gf1_clear_voices(gus, pvoice->number, pvoice->number);
snd_gf1_alloc_voice_use(gus, pvoice, type, client, port);
- spin_unlock_irqrestore(&gus->voice_alloc, flags);
return pvoice;
}
}
- spin_unlock_irqrestore(&gus->voice_alloc, flags);
return NULL;
}
void snd_gf1_free_voice(struct snd_gus_card * gus, struct snd_gus_voice *voice)
{
- unsigned long flags;
void (*private_free)(struct snd_gus_voice *voice);
if (voice == NULL || !voice->use)
return;
snd_gf1_set_default_handlers(gus, SNDRV_GF1_HANDLER_VOICE | voice->number);
snd_gf1_clear_voices(gus, voice->number, voice->number);
- spin_lock_irqsave(&gus->voice_alloc, flags);
- private_free = voice->private_free;
- voice->private_free = NULL;
- voice->private_data = NULL;
- if (voice->pcm)
- gus->gf1.pcm_alloc_voices--;
- voice->use = voice->pcm = 0;
- voice->sample_ops = NULL;
- spin_unlock_irqrestore(&gus->voice_alloc, flags);
+ scoped_guard(spinlock_irqsave, &gus->voice_alloc) {
+ private_free = voice->private_free;
+ voice->private_free = NULL;
+ voice->private_data = NULL;
+ if (voice->pcm)
+ gus->gf1.pcm_alloc_voices--;
+ voice->use = voice->pcm = 0;
+ voice->sample_ops = NULL;
+ }
if (private_free)
private_free(voice);
}
@@ -295,7 +272,6 @@ void snd_gf1_free_voice(struct snd_gus_card * gus, struct snd_gus_voice *voice)
int snd_gf1_start(struct snd_gus_card * gus)
{
- unsigned long flags;
unsigned int i;
snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0); /* reset GF1 */
@@ -344,10 +320,10 @@ int snd_gf1_start(struct snd_gus_card * gus)
}
while ((snd_gf1_i_read8(gus, SNDRV_GF1_GB_VOICES_IRQ) & 0xc0) != 0xc0);
- spin_lock_irqsave(&gus->reg_lock, flags);
- outb(gus->gf1.active_voice = 0, GUSP(gus, GF1PAGE));
- outb(gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
- spin_unlock_irqrestore(&gus->reg_lock, flags);
+ scoped_guard(spinlock_irqsave, &gus->reg_lock) {
+ outb(gus->gf1.active_voice = 0, GUSP(gus, GF1PAGE));
+ outb(gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
+ }
snd_gf1_timers_init(gus);
snd_gf1_look_regs(gus);
diff --git a/sound/isa/gus/gus_timer.c b/sound/isa/gus/gus_timer.c
index 7267fb5bf8e5..e3a8847e02cf 100644
--- a/sound/isa/gus/gus_timer.c
+++ b/sound/isa/gus/gus_timer.c
@@ -16,33 +16,29 @@
static int snd_gf1_timer1_start(struct snd_timer * timer)
{
- unsigned long flags;
unsigned char tmp;
unsigned int ticks;
struct snd_gus_card *gus;
gus = snd_timer_chip(timer);
- spin_lock_irqsave(&gus->reg_lock, flags);
+ guard(spinlock_irqsave)(&gus->reg_lock);
ticks = timer->sticks;
tmp = (gus->gf1.timer_enabled |= 4);
snd_gf1_write8(gus, SNDRV_GF1_GB_ADLIB_TIMER_1, 256 - ticks); /* timer 1 count */
snd_gf1_write8(gus, SNDRV_GF1_GB_SOUND_BLASTER_CONTROL, tmp); /* enable timer 1 IRQ */
snd_gf1_adlib_write(gus, 0x04, tmp >> 2); /* timer 2 start */
- spin_unlock_irqrestore(&gus->reg_lock, flags);
return 0;
}
static int snd_gf1_timer1_stop(struct snd_timer * timer)
{
- unsigned long flags;
unsigned char tmp;
struct snd_gus_card *gus;
gus = snd_timer_chip(timer);
- spin_lock_irqsave(&gus->reg_lock, flags);
+ guard(spinlock_irqsave)(&gus->reg_lock);
tmp = (gus->gf1.timer_enabled &= ~4);
snd_gf1_write8(gus, SNDRV_GF1_GB_SOUND_BLASTER_CONTROL, tmp); /* disable timer #1 */
- spin_unlock_irqrestore(&gus->reg_lock, flags);
return 0;
}
@@ -52,33 +48,29 @@ static int snd_gf1_timer1_stop(struct snd_timer * timer)
static int snd_gf1_timer2_start(struct snd_timer * timer)
{
- unsigned long flags;
unsigned char tmp;
unsigned int ticks;
struct snd_gus_card *gus;
gus = snd_timer_chip(timer);
- spin_lock_irqsave(&gus->reg_lock, flags);
+ guard(spinlock_irqsave)(&gus->reg_lock);
ticks = timer->sticks;
tmp = (gus->gf1.timer_enabled |= 8);
snd_gf1_write8(gus, SNDRV_GF1_GB_ADLIB_TIMER_2, 256 - ticks); /* timer 2 count */
snd_gf1_write8(gus, SNDRV_GF1_GB_SOUND_BLASTER_CONTROL, tmp); /* enable timer 2 IRQ */
snd_gf1_adlib_write(gus, 0x04, tmp >> 2); /* timer 2 start */
- spin_unlock_irqrestore(&gus->reg_lock, flags);
return 0;
}
static int snd_gf1_timer2_stop(struct snd_timer * timer)
{
- unsigned long flags;
unsigned char tmp;
struct snd_gus_card *gus;
gus = snd_timer_chip(timer);
- spin_lock_irqsave(&gus->reg_lock, flags);
+ guard(spinlock_irqsave)(&gus->reg_lock);
tmp = (gus->gf1.timer_enabled &= ~8);
snd_gf1_write8(gus, SNDRV_GF1_GB_SOUND_BLASTER_CONTROL, tmp); /* disable timer #1 */
- spin_unlock_irqrestore(&gus->reg_lock, flags);
return 0;
}
diff --git a/sound/isa/gus/gus_uart.c b/sound/isa/gus/gus_uart.c
index e207f274f240..770d8f3e4cff 100644
--- a/sound/isa/gus/gus_uart.c
+++ b/sound/isa/gus/gus_uart.c
@@ -49,13 +49,12 @@ static void snd_gf1_interrupt_midi_in(struct snd_gus_card * gus)
static void snd_gf1_interrupt_midi_out(struct snd_gus_card * gus)
{
char byte;
- unsigned long flags;
/* try unlock output */
if (snd_gf1_uart_stat(gus) & 0x01)
snd_gf1_interrupt_midi_in(gus);
- spin_lock_irqsave(&gus->uart_cmd_lock, flags);
+ guard(spinlock_irqsave)(&gus->uart_cmd_lock);
if (snd_gf1_uart_stat(gus) & 0x02) { /* Tx FIFO free? */
if (snd_rawmidi_transmit(gus->midi_substream_output, &byte, 1) != 1) { /* no other bytes or error */
snd_gf1_uart_cmd(gus, gus->gf1.uart_cmd & ~0x20); /* disable Tx interrupt */
@@ -63,7 +62,6 @@ static void snd_gf1_interrupt_midi_out(struct snd_gus_card * gus)
snd_gf1_uart_put(gus, byte);
}
}
- spin_unlock_irqrestore(&gus->uart_cmd_lock, flags);
}
static void snd_gf1_uart_reset(struct snd_gus_card * gus, int close)
@@ -77,17 +75,15 @@ static void snd_gf1_uart_reset(struct snd_gus_card * gus, int close)
static int snd_gf1_uart_output_open(struct snd_rawmidi_substream *substream)
{
- unsigned long flags;
struct snd_gus_card *gus;
gus = substream->rmidi->private_data;
- spin_lock_irqsave(&gus->uart_cmd_lock, flags);
+ guard(spinlock_irqsave)(&gus->uart_cmd_lock);
if (!(gus->gf1.uart_cmd & 0x80)) { /* input active? */
snd_gf1_uart_reset(gus, 0);
}
gus->gf1.interrupt_handler_midi_out = snd_gf1_interrupt_midi_out;
gus->midi_substream_output = substream;
- spin_unlock_irqrestore(&gus->uart_cmd_lock, flags);
#if 0
dev_dbg(gus->card->dev,
"write init - cmd = 0x%x, stat = 0x%x\n",
@@ -98,12 +94,11 @@ static int snd_gf1_uart_output_open(struct snd_rawmidi_substream *substream)
static int snd_gf1_uart_input_open(struct snd_rawmidi_substream *substream)
{
- unsigned long flags;
struct snd_gus_card *gus;
int i;
gus = substream->rmidi->private_data;
- spin_lock_irqsave(&gus->uart_cmd_lock, flags);
+ guard(spinlock_irqsave)(&gus->uart_cmd_lock);
if (gus->gf1.interrupt_handler_midi_out != snd_gf1_interrupt_midi_out) {
snd_gf1_uart_reset(gus, 0);
}
@@ -115,7 +110,6 @@ static int snd_gf1_uart_input_open(struct snd_rawmidi_substream *substream)
if (i >= 1000)
dev_err(gus->card->dev, "gus midi uart init read - cleanup error\n");
}
- spin_unlock_irqrestore(&gus->uart_cmd_lock, flags);
#if 0
dev_dbg(gus->card->dev,
"read init - enable = %i, cmd = 0x%x, stat = 0x%x\n",
@@ -130,42 +124,37 @@ static int snd_gf1_uart_input_open(struct snd_rawmidi_substream *substream)
static int snd_gf1_uart_output_close(struct snd_rawmidi_substream *substream)
{
- unsigned long flags;
struct snd_gus_card *gus;
gus = substream->rmidi->private_data;
- spin_lock_irqsave(&gus->uart_cmd_lock, flags);
+ guard(spinlock_irqsave)(&gus->uart_cmd_lock);
if (gus->gf1.interrupt_handler_midi_in != snd_gf1_interrupt_midi_in)
snd_gf1_uart_reset(gus, 1);
snd_gf1_set_default_handlers(gus, SNDRV_GF1_HANDLER_MIDI_OUT);
gus->midi_substream_output = NULL;
- spin_unlock_irqrestore(&gus->uart_cmd_lock, flags);
return 0;
}
static int snd_gf1_uart_input_close(struct snd_rawmidi_substream *substream)
{
- unsigned long flags;
struct snd_gus_card *gus;
gus = substream->rmidi->private_data;
- spin_lock_irqsave(&gus->uart_cmd_lock, flags);
+ guard(spinlock_irqsave)(&gus->uart_cmd_lock);
if (gus->gf1.interrupt_handler_midi_out != snd_gf1_interrupt_midi_out)
snd_gf1_uart_reset(gus, 1);
snd_gf1_set_default_handlers(gus, SNDRV_GF1_HANDLER_MIDI_IN);
gus->midi_substream_input = NULL;
- spin_unlock_irqrestore(&gus->uart_cmd_lock, flags);
return 0;
}
static void snd_gf1_uart_input_trigger(struct snd_rawmidi_substream *substream, int up)
{
struct snd_gus_card *gus;
- unsigned long flags;
gus = substream->rmidi->private_data;
- spin_lock_irqsave(&gus->uart_cmd_lock, flags);
+ guard(spinlock_irqsave)(&gus->uart_cmd_lock);
if (up) {
if ((gus->gf1.uart_cmd & 0x80) == 0)
snd_gf1_uart_cmd(gus, gus->gf1.uart_cmd | 0x80); /* enable Rx interrupts */
@@ -173,7 +162,6 @@ static void snd_gf1_uart_input_trigger(struct snd_rawmidi_substream *substream,
if (gus->gf1.uart_cmd & 0x80)
snd_gf1_uart_cmd(gus, gus->gf1.uart_cmd & ~0x80); /* disable Rx interrupts */
}
- spin_unlock_irqrestore(&gus->uart_cmd_lock, flags);
}
static void snd_gf1_uart_output_trigger(struct snd_rawmidi_substream *substream, int up)
diff --git a/sound/isa/gus/gusextreme.c b/sound/isa/gus/gusextreme.c
index 28827a2e6cbd..ed921b89b00a 100644
--- a/sound/isa/gus/gusextreme.c
+++ b/sound/isa/gus/gusextreme.c
@@ -145,7 +145,6 @@ static int snd_gusextreme_gus_card_create(struct snd_card *card,
static int snd_gusextreme_detect(struct snd_gus_card *gus,
struct snd_es1688 *es1688)
{
- unsigned long flags;
unsigned char d;
/*
@@ -162,17 +161,17 @@ static int snd_gusextreme_detect(struct snd_gus_card *gus,
* 0x260 = 2,2,1
*/
- spin_lock_irqsave(&es1688->mixer_lock, flags);
- snd_es1688_mixer_write(es1688, 0x40, 0x0b); /* don't change!!! */
- spin_unlock_irqrestore(&es1688->mixer_lock, flags);
+ scoped_guard(spinlock_irqsave, &es1688->mixer_lock) {
+ snd_es1688_mixer_write(es1688, 0x40, 0x0b); /* don't change!!! */
+ }
- spin_lock_irqsave(&es1688->reg_lock, flags);
- outb(gus->gf1.port & 0x040 ? 2 : 0, ES1688P(es1688, INIT1));
- outb(0, 0x201);
- outb(gus->gf1.port & 0x020 ? 2 : 0, ES1688P(es1688, INIT1));
- outb(0, 0x201);
- outb(gus->gf1.port & 0x010 ? 3 : 1, ES1688P(es1688, INIT1));
- spin_unlock_irqrestore(&es1688->reg_lock, flags);
+ scoped_guard(spinlock_irqsave, &es1688->reg_lock) {
+ outb(gus->gf1.port & 0x040 ? 2 : 0, ES1688P(es1688, INIT1));
+ outb(0, 0x201);
+ outb(gus->gf1.port & 0x020 ? 2 : 0, ES1688P(es1688, INIT1));
+ outb(0, 0x201);
+ outb(gus->gf1.port & 0x010 ? 3 : 1, ES1688P(es1688, INIT1));
+ }
udelay(100);
diff --git a/sound/isa/gus/interwave.c b/sound/isa/gus/interwave.c
index 0e0bcd85a648..18adcd35e117 100644
--- a/sound/isa/gus/interwave.c
+++ b/sound/isa/gus/interwave.c
@@ -239,7 +239,6 @@ static int snd_interwave_detect(struct snd_interwave *iwcard,
#endif
)
{
- unsigned long flags;
unsigned char rev1, rev2;
int d;
@@ -257,12 +256,12 @@ static int snd_interwave_detect(struct snd_interwave *iwcard,
dev_dbg(gus->card->dev, "[0x%lx] check 2 failed - 0x%x\n", gus->gf1.port, d);
return -ENODEV;
}
- spin_lock_irqsave(&gus->reg_lock, flags);
- rev1 = snd_gf1_look8(gus, SNDRV_GF1_GB_VERSION_NUMBER);
- snd_gf1_write8(gus, SNDRV_GF1_GB_VERSION_NUMBER, ~rev1);
- rev2 = snd_gf1_look8(gus, SNDRV_GF1_GB_VERSION_NUMBER);
- snd_gf1_write8(gus, SNDRV_GF1_GB_VERSION_NUMBER, rev1);
- spin_unlock_irqrestore(&gus->reg_lock, flags);
+ scoped_guard(spinlock_irqsave, &gus->reg_lock) {
+ rev1 = snd_gf1_look8(gus, SNDRV_GF1_GB_VERSION_NUMBER);
+ snd_gf1_write8(gus, SNDRV_GF1_GB_VERSION_NUMBER, ~rev1);
+ rev2 = snd_gf1_look8(gus, SNDRV_GF1_GB_VERSION_NUMBER);
+ snd_gf1_write8(gus, SNDRV_GF1_GB_VERSION_NUMBER, rev1);
+ }
dev_dbg(gus->card->dev,
"[0x%lx] InterWave check - rev1=0x%x, rev2=0x%x\n",
gus->gf1.port, rev1, rev2);
@@ -457,18 +456,16 @@ static void snd_interwave_detect_memory(struct snd_gus_card *gus)
static void snd_interwave_init(int dev, struct snd_gus_card *gus)
{
- unsigned long flags;
-
/* ok.. some InterWave specific initialization */
- spin_lock_irqsave(&gus->reg_lock, flags);
- snd_gf1_write8(gus, SNDRV_GF1_GB_SOUND_BLASTER_CONTROL, 0x00);
- snd_gf1_write8(gus, SNDRV_GF1_GB_COMPATIBILITY, 0x1f);
- snd_gf1_write8(gus, SNDRV_GF1_GB_DECODE_CONTROL, 0x49);
- snd_gf1_write8(gus, SNDRV_GF1_GB_VERSION_NUMBER, 0x11);
- snd_gf1_write8(gus, SNDRV_GF1_GB_MPU401_CONTROL_A, 0x00);
- snd_gf1_write8(gus, SNDRV_GF1_GB_MPU401_CONTROL_B, 0x30);
- snd_gf1_write8(gus, SNDRV_GF1_GB_EMULATION_IRQ, 0x00);
- spin_unlock_irqrestore(&gus->reg_lock, flags);
+ scoped_guard(spinlock_irqsave, &gus->reg_lock) {
+ snd_gf1_write8(gus, SNDRV_GF1_GB_SOUND_BLASTER_CONTROL, 0x00);
+ snd_gf1_write8(gus, SNDRV_GF1_GB_COMPATIBILITY, 0x1f);
+ snd_gf1_write8(gus, SNDRV_GF1_GB_DECODE_CONTROL, 0x49);
+ snd_gf1_write8(gus, SNDRV_GF1_GB_VERSION_NUMBER, 0x11);
+ snd_gf1_write8(gus, SNDRV_GF1_GB_MPU401_CONTROL_A, 0x00);
+ snd_gf1_write8(gus, SNDRV_GF1_GB_MPU401_CONTROL_B, 0x30);
+ snd_gf1_write8(gus, SNDRV_GF1_GB_EMULATION_IRQ, 0x00);
+ }
gus->equal_irq = 1;
gus->codec_flag = 1;
gus->interwave = 1;
--
2.50.1
^ permalink raw reply related [flat|nested] 19+ messages in thread* [PATCH 09/18] ALSA: msnd: Use guard() for spin locks
2025-08-29 14:52 [PATCH 00/18] ALSA: Use auto-cleanup macros for ISA drivers Takashi Iwai
` (7 preceding siblings ...)
2025-08-29 14:52 ` [PATCH 08/18] ALSA: gus: Use guard() for spin locks Takashi Iwai
@ 2025-08-29 14:52 ` Takashi Iwai
2025-08-29 14:52 ` [PATCH 10/18] ALSA: opl3sa2: " Takashi Iwai
` (8 subsequent siblings)
17 siblings, 0 replies; 19+ messages in thread
From: Takashi Iwai @ 2025-08-29 14:52 UTC (permalink / raw)
To: linux-sound
Clean up the code using guard() for spin locks.
Merely code refactoring, and no behavior change.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
sound/isa/msnd/msnd.c | 29 ++++++++--------------------
sound/isa/msnd/msnd_pinnacle.c | 11 +++++------
sound/isa/msnd/msnd_pinnacle_mixer.c | 8 ++------
3 files changed, 15 insertions(+), 33 deletions(-)
diff --git a/sound/isa/msnd/msnd.c b/sound/isa/msnd/msnd.c
index 8c1d2e27854b..5e350234d572 100644
--- a/sound/isa/msnd/msnd.c
+++ b/sound/isa/msnd/msnd.c
@@ -76,15 +76,11 @@ static int snd_msnd_wait_HC0(struct snd_msnd *dev)
int snd_msnd_send_dsp_cmd(struct snd_msnd *dev, u8 cmd)
{
- unsigned long flags;
-
- spin_lock_irqsave(&dev->lock, flags);
+ guard(spinlock_irqsave)(&dev->lock);
if (snd_msnd_wait_HC0(dev) == 0) {
outb(cmd, dev->io + HP_CVR);
- spin_unlock_irqrestore(&dev->lock, flags);
return 0;
}
- spin_unlock_irqrestore(&dev->lock, flags);
dev_dbg(dev->card->dev, LOGNAME ": Send DSP command timeout\n");
@@ -133,14 +129,12 @@ EXPORT_SYMBOL(snd_msnd_upload_host);
int snd_msnd_enable_irq(struct snd_msnd *dev)
{
- unsigned long flags;
-
if (dev->irq_ref++)
return 0;
dev_dbg(dev->card->dev, LOGNAME ": Enabling IRQ\n");
- spin_lock_irqsave(&dev->lock, flags);
+ guard(spinlock_irqsave)(&dev->lock);
if (snd_msnd_wait_TXDE(dev) == 0) {
outb(inb(dev->io + HP_ICR) | HPICR_TREQ, dev->io + HP_ICR);
if (dev->type == msndClassic)
@@ -151,10 +145,8 @@ int snd_msnd_enable_irq(struct snd_msnd *dev)
enable_irq(dev->irq);
snd_msnd_init_queue(dev->DSPQ, dev->dspq_data_buff,
dev->dspq_buff_size);
- spin_unlock_irqrestore(&dev->lock, flags);
return 0;
}
- spin_unlock_irqrestore(&dev->lock, flags);
dev_dbg(dev->card->dev, LOGNAME ": Enable IRQ failed\n");
@@ -164,8 +156,6 @@ EXPORT_SYMBOL(snd_msnd_enable_irq);
int snd_msnd_disable_irq(struct snd_msnd *dev)
{
- unsigned long flags;
-
if (--dev->irq_ref > 0)
return 0;
@@ -175,16 +165,14 @@ int snd_msnd_disable_irq(struct snd_msnd *dev)
dev_dbg(dev->card->dev, LOGNAME ": Disabling IRQ\n");
- spin_lock_irqsave(&dev->lock, flags);
+ guard(spinlock_irqsave)(&dev->lock);
if (snd_msnd_wait_TXDE(dev) == 0) {
outb(inb(dev->io + HP_ICR) & ~HPICR_RREQ, dev->io + HP_ICR);
if (dev->type == msndClassic)
outb(HPIRQ_NONE, dev->io + HP_IRQM);
disable_irq(dev->irq);
- spin_unlock_irqrestore(&dev->lock, flags);
return 0;
}
- spin_unlock_irqrestore(&dev->lock, flags);
dev_dbg(dev->card->dev, LOGNAME ": Disable IRQ failed\n");
@@ -376,7 +364,6 @@ static void snd_msnd_capture_reset_queue(struct snd_msnd *chip,
{
int n;
void __iomem *pDAQ;
- /* unsigned long flags; */
/* snd_msnd_init_queue(chip->DARQ, DARQ_DATA_BUFF, DARQ_BUFF_SIZE); */
@@ -388,11 +375,11 @@ static void snd_msnd_capture_reset_queue(struct snd_msnd *chip,
chip->DARQ + JQS_wTail);
#if 0 /* Critical section: bank 1 access. this is how the OSS driver does it:*/
- spin_lock_irqsave(&chip->lock, flags);
- outb(HPBLKSEL_1, chip->io + HP_BLKS);
- memset_io(chip->mappedbase, 0, DAR_BUFF_SIZE * 3);
- outb(HPBLKSEL_0, chip->io + HP_BLKS);
- spin_unlock_irqrestore(&chip->lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->lock) {
+ outb(HPBLKSEL_1, chip->io + HP_BLKS);
+ memset_io(chip->mappedbase, 0, DAR_BUFF_SIZE * 3);
+ outb(HPBLKSEL_0, chip->io + HP_BLKS);
+ }
#endif
chip->capturePeriodBytes = pcm_count;
diff --git a/sound/isa/msnd/msnd_pinnacle.c b/sound/isa/msnd/msnd_pinnacle.c
index 969bbb18657b..c4eec391cd29 100644
--- a/sound/isa/msnd/msnd_pinnacle.c
+++ b/sound/isa/msnd/msnd_pinnacle.c
@@ -300,7 +300,6 @@ static int snd_msnd_init_sma(struct snd_msnd *chip)
{
static int initted;
u16 mastVolLeft, mastVolRight;
- unsigned long flags;
#ifdef MSND_CLASSIC
outb(chip->memid, chip->io + HP_MEMM);
@@ -317,11 +316,11 @@ static int snd_msnd_init_sma(struct snd_msnd *chip)
memset_io(chip->mappedbase, 0, 0x8000);
/* Critical section: bank 1 access */
- spin_lock_irqsave(&chip->lock, flags);
- outb(HPBLKSEL_1, chip->io + HP_BLKS);
- memset_io(chip->mappedbase, 0, 0x8000);
- outb(HPBLKSEL_0, chip->io + HP_BLKS);
- spin_unlock_irqrestore(&chip->lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->lock) {
+ outb(HPBLKSEL_1, chip->io + HP_BLKS);
+ memset_io(chip->mappedbase, 0, 0x8000);
+ outb(HPBLKSEL_0, chip->io + HP_BLKS);
+ }
/* Digital audio play queue */
chip->DAPQ = chip->mappedbase + DAPQ_OFFSET;
diff --git a/sound/isa/msnd/msnd_pinnacle_mixer.c b/sound/isa/msnd/msnd_pinnacle_mixer.c
index 2f1bb5a2b376..ec354483b9f8 100644
--- a/sound/isa/msnd/msnd_pinnacle_mixer.c
+++ b/sound/isa/msnd/msnd_pinnacle_mixer.c
@@ -136,14 +136,12 @@ static int snd_msndmix_volume_get(struct snd_kcontrol *kcontrol,
{
struct snd_msnd *msnd = snd_kcontrol_chip(kcontrol);
int addr = kcontrol->private_value;
- unsigned long flags;
- spin_lock_irqsave(&msnd->mixer_lock, flags);
+ guard(spinlock_irqsave)(&msnd->mixer_lock);
ucontrol->value.integer.value[0] = msnd->left_levels[addr] * 100;
ucontrol->value.integer.value[0] /= 0xFFFF;
ucontrol->value.integer.value[1] = msnd->right_levels[addr] * 100;
ucontrol->value.integer.value[1] /= 0xFFFF;
- spin_unlock_irqrestore(&msnd->mixer_lock, flags);
return 0;
}
@@ -253,15 +251,13 @@ static int snd_msndmix_volume_put(struct snd_kcontrol *kcontrol,
struct snd_msnd *msnd = snd_kcontrol_chip(kcontrol);
int change, addr = kcontrol->private_value;
int left, right;
- unsigned long flags;
left = ucontrol->value.integer.value[0] % 101;
right = ucontrol->value.integer.value[1] % 101;
- spin_lock_irqsave(&msnd->mixer_lock, flags);
+ guard(spinlock_irqsave)(&msnd->mixer_lock);
change = msnd->left_levels[addr] != left
|| msnd->right_levels[addr] != right;
snd_msndmix_set(msnd, addr, left, right);
- spin_unlock_irqrestore(&msnd->mixer_lock, flags);
return change;
}
--
2.50.1
^ permalink raw reply related [flat|nested] 19+ messages in thread* [PATCH 10/18] ALSA: opl3sa2: Use guard() for spin locks
2025-08-29 14:52 [PATCH 00/18] ALSA: Use auto-cleanup macros for ISA drivers Takashi Iwai
` (8 preceding siblings ...)
2025-08-29 14:52 ` [PATCH 09/18] ALSA: msnd: " Takashi Iwai
@ 2025-08-29 14:52 ` Takashi Iwai
2025-08-29 14:52 ` [PATCH 11/18] ALSA: opti9xx: " Takashi Iwai
` (7 subsequent siblings)
17 siblings, 0 replies; 19+ messages in thread
From: Takashi Iwai @ 2025-08-29 14:52 UTC (permalink / raw)
To: linux-sound
Clean up the code using guard() for spin locks.
Merely code refactoring, and no behavior change.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
sound/isa/opl3sa2.c | 29 +++++++----------------------
1 file changed, 7 insertions(+), 22 deletions(-)
diff --git a/sound/isa/opl3sa2.c b/sound/isa/opl3sa2.c
index 5e8e1326d5c0..8c1767697b62 100644
--- a/sound/isa/opl3sa2.c
+++ b/sound/isa/opl3sa2.c
@@ -172,13 +172,8 @@ static unsigned char __snd_opl3sa2_read(struct snd_opl3sa2 *chip, unsigned char
/* read control port (with spinlock) */
static unsigned char snd_opl3sa2_read(struct snd_opl3sa2 *chip, unsigned char reg)
{
- unsigned long flags;
- unsigned char result;
-
- spin_lock_irqsave(&chip->reg_lock, flags);
- result = __snd_opl3sa2_read(chip, reg);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
- return result;
+ guard(spinlock_irqsave)(&chip->reg_lock);
+ return __snd_opl3sa2_read(chip, reg);
}
/* write control port (w/o spinlock) */
@@ -195,10 +190,8 @@ static void __snd_opl3sa2_write(struct snd_opl3sa2 *chip, unsigned char reg, uns
/* write control port (with spinlock) */
static void snd_opl3sa2_write(struct snd_opl3sa2 *chip, unsigned char reg, unsigned char value)
{
- unsigned long flags;
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
__snd_opl3sa2_write(chip, reg, value);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
}
static int snd_opl3sa2_detect(struct snd_card *card)
@@ -336,15 +329,13 @@ static irqreturn_t snd_opl3sa2_interrupt(int irq, void *dev_id)
static int snd_opl3sa2_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_opl3sa2 *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int reg = kcontrol->private_value & 0xff;
int shift = (kcontrol->private_value >> 8) & 0xff;
int mask = (kcontrol->private_value >> 16) & 0xff;
int invert = (kcontrol->private_value >> 24) & 0xff;
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
ucontrol->value.integer.value[0] = (chip->ctlregs[reg] >> shift) & mask;
- spin_unlock_irqrestore(&chip->reg_lock, flags);
if (invert)
ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
return 0;
@@ -353,7 +344,6 @@ static int snd_opl3sa2_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_
static int snd_opl3sa2_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_opl3sa2 *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int reg = kcontrol->private_value & 0xff;
int shift = (kcontrol->private_value >> 8) & 0xff;
int mask = (kcontrol->private_value >> 16) & 0xff;
@@ -365,12 +355,11 @@ static int snd_opl3sa2_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_
if (invert)
val = mask - val;
val <<= shift;
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
oval = chip->ctlregs[reg];
val = (oval & ~(mask << shift)) | val;
change = val != oval;
__snd_opl3sa2_write(chip, reg, val);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
return change;
}
@@ -391,7 +380,6 @@ static int snd_opl3sa2_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_
static int snd_opl3sa2_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_opl3sa2 *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int left_reg = kcontrol->private_value & 0xff;
int right_reg = (kcontrol->private_value >> 8) & 0xff;
int shift_left = (kcontrol->private_value >> 16) & 0x07;
@@ -399,10 +387,9 @@ static int snd_opl3sa2_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_
int mask = (kcontrol->private_value >> 24) & 0xff;
int invert = (kcontrol->private_value >> 22) & 1;
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
ucontrol->value.integer.value[0] = (chip->ctlregs[left_reg] >> shift_left) & mask;
ucontrol->value.integer.value[1] = (chip->ctlregs[right_reg] >> shift_right) & mask;
- spin_unlock_irqrestore(&chip->reg_lock, flags);
if (invert) {
ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
@@ -413,7 +400,6 @@ static int snd_opl3sa2_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_
static int snd_opl3sa2_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_opl3sa2 *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int left_reg = kcontrol->private_value & 0xff;
int right_reg = (kcontrol->private_value >> 8) & 0xff;
int shift_left = (kcontrol->private_value >> 16) & 0x07;
@@ -431,7 +417,7 @@ static int snd_opl3sa2_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_
}
val1 <<= shift_left;
val2 <<= shift_right;
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
if (left_reg != right_reg) {
oval1 = chip->ctlregs[left_reg];
oval2 = chip->ctlregs[right_reg];
@@ -446,7 +432,6 @@ static int snd_opl3sa2_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_
change = val1 != oval1;
__snd_opl3sa2_write(chip, left_reg, val1);
}
- spin_unlock_irqrestore(&chip->reg_lock, flags);
return change;
}
--
2.50.1
^ permalink raw reply related [flat|nested] 19+ messages in thread* [PATCH 11/18] ALSA: opti9xx: Use guard() for spin locks
2025-08-29 14:52 [PATCH 00/18] ALSA: Use auto-cleanup macros for ISA drivers Takashi Iwai
` (9 preceding siblings ...)
2025-08-29 14:52 ` [PATCH 10/18] ALSA: opl3sa2: " Takashi Iwai
@ 2025-08-29 14:52 ` Takashi Iwai
2025-08-29 14:52 ` [PATCH 12/18] ALSA: sb: Use guard() for mutex locks Takashi Iwai
` (6 subsequent siblings)
17 siblings, 0 replies; 19+ messages in thread
From: Takashi Iwai @ 2025-08-29 14:52 UTC (permalink / raw)
To: linux-sound
Clean up the code using guard() for spin locks.
Merely code refactoring, and no behavior change.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
sound/isa/opti9xx/miro.c | 17 +++++------------
sound/isa/opti9xx/opti92x-ad1848.c | 21 ++++++---------------
2 files changed, 11 insertions(+), 27 deletions(-)
diff --git a/sound/isa/opti9xx/miro.c b/sound/isa/opti9xx/miro.c
index ad7180d7c0c2..c320af3e9a05 100644
--- a/sound/isa/opti9xx/miro.c
+++ b/sound/isa/opti9xx/miro.c
@@ -822,10 +822,9 @@ static int snd_miro_init(struct snd_miro *chip,
static unsigned char snd_miro_read(struct snd_miro *chip,
unsigned char reg)
{
- unsigned long flags;
unsigned char retval = 0xff;
- spin_lock_irqsave(&chip->lock, flags);
+ guard(spinlock_irqsave)(&chip->lock);
outb(chip->password, chip->mc_base + chip->pwd_reg);
switch (chip->hardware) {
@@ -846,16 +845,13 @@ static unsigned char snd_miro_read(struct snd_miro *chip,
dev_err(chip->card->dev, "sorry, no support for %d\n", chip->hardware);
}
- spin_unlock_irqrestore(&chip->lock, flags);
return retval;
}
static void snd_miro_write(struct snd_miro *chip, unsigned char reg,
unsigned char value)
{
- unsigned long flags;
-
- spin_lock_irqsave(&chip->lock, flags);
+ guard(spinlock_irqsave)(&chip->lock);
outb(chip->password, chip->mc_base + chip->pwd_reg);
switch (chip->hardware) {
@@ -875,8 +871,6 @@ static void snd_miro_write(struct snd_miro *chip, unsigned char reg,
default:
dev_err(chip->card->dev, "sorry, no support for %d\n", chip->hardware);
}
-
- spin_unlock_irqrestore(&chip->lock, flags);
}
static inline void snd_miro_write_mask(struct snd_miro *chip,
@@ -1013,7 +1007,6 @@ static int snd_miro_configure(struct snd_miro *chip)
unsigned char dma_bits;
unsigned char mpu_port_bits = 0;
unsigned char mpu_irq_bits;
- unsigned long flags;
snd_miro_write_mask(chip, OPTi9XX_MC_REG(1), 0x80, 0x80);
snd_miro_write_mask(chip, OPTi9XX_MC_REG(2), 0x20, 0x20); /* OPL4 */
@@ -1109,9 +1102,9 @@ static int snd_miro_configure(struct snd_miro *chip)
}
dma_bits |= 0x04;
- spin_lock_irqsave(&chip->lock, flags);
- outb(irq_bits << 3 | dma_bits, chip->wss_base);
- spin_unlock_irqrestore(&chip->lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->lock) {
+ outb(irq_bits << 3 | dma_bits, chip->wss_base);
+ }
__skip_resources:
if (chip->hardware > OPTi9XX_HW_82C928) {
diff --git a/sound/isa/opti9xx/opti92x-ad1848.c b/sound/isa/opti9xx/opti92x-ad1848.c
index 328d043a1619..abaa3ed3ab5c 100644
--- a/sound/isa/opti9xx/opti92x-ad1848.c
+++ b/sound/isa/opti9xx/opti92x-ad1848.c
@@ -228,10 +228,9 @@ static int snd_opti9xx_init(struct snd_opti9xx *chip,
static unsigned char snd_opti9xx_read(struct snd_opti9xx *chip,
unsigned char reg)
{
- unsigned long flags;
unsigned char retval = 0xff;
- spin_lock_irqsave(&chip->lock, flags);
+ guard(spinlock_irqsave)(&chip->lock);
outb(chip->password, chip->mc_base + chip->pwd_reg);
switch (chip->hardware) {
@@ -265,16 +264,13 @@ static unsigned char snd_opti9xx_read(struct snd_opti9xx *chip,
dev_err(chip->card->dev, "chip %d not supported\n", chip->hardware);
}
- spin_unlock_irqrestore(&chip->lock, flags);
return retval;
}
static void snd_opti9xx_write(struct snd_opti9xx *chip, unsigned char reg,
unsigned char value)
{
- unsigned long flags;
-
- spin_lock_irqsave(&chip->lock, flags);
+ guard(spinlock_irqsave)(&chip->lock);
outb(chip->password, chip->mc_base + chip->pwd_reg);
switch (chip->hardware) {
@@ -307,8 +303,6 @@ static void snd_opti9xx_write(struct snd_opti9xx *chip, unsigned char reg,
default:
dev_err(chip->card->dev, "chip %d not supported\n", chip->hardware);
}
-
- spin_unlock_irqrestore(&chip->lock, flags);
}
@@ -659,9 +653,6 @@ static int snd_opti9xx_read_check(struct snd_card *card,
struct snd_opti9xx *chip)
{
unsigned char value;
-#ifdef OPTi93X
- unsigned long flags;
-#endif
chip->res_mc_base =
devm_request_region(card->dev, chip->mc_base,
@@ -680,10 +671,10 @@ static int snd_opti9xx_read_check(struct snd_card *card,
if (!chip->res_mc_indir)
return -EBUSY;
- spin_lock_irqsave(&chip->lock, flags);
- outb(chip->password, chip->mc_base + chip->pwd_reg);
- outb(((chip->mc_indir_index & 0x1f0) >> 4), chip->mc_base);
- spin_unlock_irqrestore(&chip->lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->lock) {
+ outb(chip->password, chip->mc_base + chip->pwd_reg);
+ outb(((chip->mc_indir_index & 0x1f0) >> 4), chip->mc_base);
+ }
value = snd_opti9xx_read(chip, OPTi9XX_MC_REG(7));
snd_opti9xx_write(chip, OPTi9XX_MC_REG(7), 0xff - value);
--
2.50.1
^ permalink raw reply related [flat|nested] 19+ messages in thread* [PATCH 12/18] ALSA: sb: Use guard() for mutex locks
2025-08-29 14:52 [PATCH 00/18] ALSA: Use auto-cleanup macros for ISA drivers Takashi Iwai
` (10 preceding siblings ...)
2025-08-29 14:52 ` [PATCH 11/18] ALSA: opti9xx: " Takashi Iwai
@ 2025-08-29 14:52 ` Takashi Iwai
2025-08-29 14:52 ` [PATCH 13/18] ALSA: sb: Use guard() for spin locks Takashi Iwai
` (5 subsequent siblings)
17 siblings, 0 replies; 19+ messages in thread
From: Takashi Iwai @ 2025-08-29 14:52 UTC (permalink / raw)
To: linux-sound
Replace the manual mutex lock/unlock pairs with guard() for code
simplification.
Only code refactoring, and no behavior change.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
sound/isa/sb/sb16_csp.c | 12 +++---------
1 file changed, 3 insertions(+), 9 deletions(-)
diff --git a/sound/isa/sb/sb16_csp.c b/sound/isa/sb/sb16_csp.c
index 7034072c80d4..7c5072e4a96f 100644
--- a/sound/isa/sb/sb16_csp.c
+++ b/sound/isa/sb/sb16_csp.c
@@ -265,14 +265,10 @@ static int snd_sb_csp_release(struct snd_hwdep * hw, struct file *file)
*/
static int snd_sb_csp_use(struct snd_sb_csp * p)
{
- mutex_lock(&p->access_mutex);
- if (p->used) {
- mutex_unlock(&p->access_mutex);
+ guard(mutex)(&p->access_mutex);
+ if (p->used)
return -EAGAIN;
- }
p->used++;
- mutex_unlock(&p->access_mutex);
-
return 0;
}
@@ -282,10 +278,8 @@ static int snd_sb_csp_use(struct snd_sb_csp * p)
*/
static int snd_sb_csp_unuse(struct snd_sb_csp * p)
{
- mutex_lock(&p->access_mutex);
+ guard(mutex)(&p->access_mutex);
p->used--;
- mutex_unlock(&p->access_mutex);
-
return 0;
}
--
2.50.1
^ permalink raw reply related [flat|nested] 19+ messages in thread* [PATCH 13/18] ALSA: sb: Use guard() for spin locks
2025-08-29 14:52 [PATCH 00/18] ALSA: Use auto-cleanup macros for ISA drivers Takashi Iwai
` (11 preceding siblings ...)
2025-08-29 14:52 ` [PATCH 12/18] ALSA: sb: Use guard() for mutex locks Takashi Iwai
@ 2025-08-29 14:52 ` Takashi Iwai
2025-08-29 14:52 ` [PATCH 14/18] ALSA: emu8000: " Takashi Iwai
` (4 subsequent siblings)
17 siblings, 0 replies; 19+ messages in thread
From: Takashi Iwai @ 2025-08-29 14:52 UTC (permalink / raw)
To: linux-sound
Clean up the code using guard() for spin locks.
Merely code refactoring, and no behavior change.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
sound/isa/sb/sb16.c | 11 +-
sound/isa/sb/sb16_csp.c | 213 +++++++++++++++++----------------------
sound/isa/sb/sb16_main.c | 123 +++++++++-------------
sound/isa/sb/sb8_main.c | 168 ++++++++++++++----------------
sound/isa/sb/sb8_midi.c | 121 +++++++++-------------
sound/isa/sb/sb_common.c | 17 ++--
sound/isa/sb/sb_mixer.c | 61 ++++-------
7 files changed, 294 insertions(+), 420 deletions(-)
diff --git a/sound/isa/sb/sb16.c b/sound/isa/sb/sb16.c
index 752762117338..208d1942a015 100644
--- a/sound/isa/sb/sb16.c
+++ b/sound/isa/sb/sb16.c
@@ -310,7 +310,6 @@ static int snd_sb16_probe(struct snd_card *card, int dev)
#ifdef CONFIG_SND_SB16_CSP
struct snd_hwdep *xcsp = NULL;
#endif
- unsigned long flags;
int err;
xirq = irq[dev];
@@ -421,11 +420,11 @@ static int snd_sb16_probe(struct snd_card *card, int dev)
#endif
/* setup Mic AGC */
- spin_lock_irqsave(&chip->mixer_lock, flags);
- snd_sbmixer_write(chip, SB_DSP4_MIC_AGC,
- (snd_sbmixer_read(chip, SB_DSP4_MIC_AGC) & 0x01) |
- (mic_agc[dev] ? 0x00 : 0x01));
- spin_unlock_irqrestore(&chip->mixer_lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->mixer_lock) {
+ snd_sbmixer_write(chip, SB_DSP4_MIC_AGC,
+ (snd_sbmixer_read(chip, SB_DSP4_MIC_AGC) & 0x01) |
+ (mic_agc[dev] ? 0x00 : 0x01));
+ }
err = snd_card_register(card);
if (err < 0)
diff --git a/sound/isa/sb/sb16_csp.c b/sound/isa/sb/sb16_csp.c
index 7c5072e4a96f..9ad71a9fc18d 100644
--- a/sound/isa/sb/sb16_csp.c
+++ b/sound/isa/sb/sb16_csp.c
@@ -301,7 +301,6 @@ static int snd_sb_csp_riff_load(struct snd_sb_csp * p,
__le32 item_type;
struct desc_header funcdesc_h;
- unsigned long flags;
int err;
if (copy_from_user(&info, mcode, sizeof(info)))
@@ -429,10 +428,9 @@ static int snd_sb_csp_riff_load(struct snd_sb_csp * p,
p->acc_rates = le16_to_cpu(funcdesc_h.flags_rates);
/* Decouple CSP from IRQ and DMAREQ lines */
- spin_lock_irqsave(&p->chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&p->chip->reg_lock);
set_mode_register(p->chip, 0xfc);
set_mode_register(p->chip, 0x00);
- spin_unlock_irqrestore(&p->chip->reg_lock, flags);
/* finished loading successfully */
p->running = SNDRV_SB_CSP_ST_LOADED; /* set LOADED flag */
@@ -542,10 +540,8 @@ static int set_mode_register(struct snd_sb *chip, unsigned char mode)
static int csp_detect(struct snd_sb *chip, int *version)
{
unsigned char csp_test1, csp_test2;
- unsigned long flags;
- int result = -ENODEV;
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
set_codec_parameter(chip, 0x00, 0x00);
set_mode_register(chip, 0xfc); /* 0xfc = ?? */
@@ -554,23 +550,21 @@ static int csp_detect(struct snd_sb *chip, int *version)
set_register(chip, 0x83, ~csp_test1);
csp_test2 = read_register(chip, 0x83);
if (csp_test2 != (csp_test1 ^ 0xff))
- goto __fail;
+ return -ENODEV;
set_register(chip, 0x83, csp_test1);
csp_test2 = read_register(chip, 0x83);
if (csp_test2 != csp_test1)
- goto __fail;
+ return -ENODEV;
set_mode_register(chip, 0x00); /* 0x00 = ? */
*version = get_version(chip);
snd_sbdsp_reset(chip); /* reset DSP after getversion! */
if (*version >= 0x10 && *version <= 0x1f)
- result = 0; /* valid version id */
+ return 0; /* valid version id */
- __fail:
- spin_unlock_irqrestore(&chip->reg_lock, flags);
- return result;
+ return -ENODEV;
}
/*
@@ -608,14 +602,12 @@ static int snd_sb_csp_load(struct snd_sb_csp * p, const unsigned char *buf, int
{
int status, i;
int err;
- int result = -EIO;
- unsigned long flags;
- spin_lock_irqsave(&p->chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&p->chip->reg_lock);
snd_sbdsp_command(p->chip, 0x01); /* CSP download command */
if (snd_sbdsp_get_byte(p->chip)) {
dev_dbg(p->chip->card->dev, "%s: Download command failed\n", __func__);
- goto __fail;
+ return -EIO;
}
/* Send CSP low byte (size - 1) */
snd_sbdsp_command(p->chip, (unsigned char)(size - 1));
@@ -625,10 +617,10 @@ static int snd_sb_csp_load(struct snd_sb_csp * p, const unsigned char *buf, int
/* load from kernel space */
while (size--) {
if (!snd_sbdsp_command(p->chip, *buf++))
- goto __fail;
+ return -EIO;
}
if (snd_sbdsp_get_byte(p->chip))
- goto __fail;
+ return -EIO;
if (load_flags & SNDRV_SB_CSP_LOAD_INITBLOCK) {
i = 0;
@@ -644,7 +636,7 @@ static int snd_sb_csp_load(struct snd_sb_csp * p, const unsigned char *buf, int
dev_dbg(p->chip->card->dev,
"%s: Microcode initialization failed\n",
__func__);
- goto __fail;
+ return -EIO;
}
} else {
/*
@@ -652,24 +644,21 @@ static int snd_sb_csp_load(struct snd_sb_csp * p, const unsigned char *buf, int
* Start CSP chip if no 16bit DMA channel is set - some kind
* of autorun or perhaps a bugfix?
*/
- spin_lock(&p->chip->mixer_lock);
- status = snd_sbmixer_read(p->chip, SB_DSP4_DMASETUP);
- spin_unlock(&p->chip->mixer_lock);
+ scoped_guard(spinlock, &p->chip->mixer_lock) {
+ status = snd_sbmixer_read(p->chip, SB_DSP4_DMASETUP);
+ }
if (!(status & (SB_DMASETUP_DMA7 | SB_DMASETUP_DMA6 | SB_DMASETUP_DMA5))) {
err = (set_codec_parameter(p->chip, 0xaa, 0x00) ||
set_codec_parameter(p->chip, 0xff, 0x00));
snd_sbdsp_reset(p->chip); /* really! */
if (err)
- goto __fail;
+ return -EIO;
set_mode_register(p->chip, 0xc0); /* c0 = STOP */
set_mode_register(p->chip, 0x70); /* 70 = RUN */
}
}
- result = 0;
- __fail:
- spin_unlock_irqrestore(&p->chip->reg_lock, flags);
- return result;
+ return 0;
}
static int snd_sb_csp_load_user(struct snd_sb_csp * p, const unsigned char __user *buf, int size, int load_flags)
@@ -716,7 +705,6 @@ static int snd_sb_csp_firmware_load(struct snd_sb_csp *p, int index, int flags)
*/
static int snd_sb_csp_autoload(struct snd_sb_csp * p, snd_pcm_format_t pcm_sfmt, int play_rec_mode)
{
- unsigned long flags;
int err = 0;
/* if CSP is running or manually loaded then exit */
@@ -757,10 +745,9 @@ static int snd_sb_csp_autoload(struct snd_sb_csp * p, snd_pcm_format_t pcm_sfmt,
default:
/* Decouple CSP from IRQ and DMAREQ lines */
if (p->running & SNDRV_SB_CSP_ST_AUTO) {
- spin_lock_irqsave(&p->chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&p->chip->reg_lock);
set_mode_register(p->chip, 0xfc);
set_mode_register(p->chip, 0x00);
- spin_unlock_irqrestore(&p->chip->reg_lock, flags);
p->running = 0; /* clear autoloaded flag */
}
return -EINVAL;
@@ -792,7 +779,6 @@ static int snd_sb_csp_start(struct snd_sb_csp * p, int sample_width, int channel
unsigned char s_type; /* sample type */
unsigned char mixL, mixR;
int result = -EIO;
- unsigned long flags;
if (!(p->running & (SNDRV_SB_CSP_ST_LOADED | SNDRV_SB_CSP_ST_AUTO))) {
dev_dbg(dev, "%s: Microcode not loaded\n", __func__);
@@ -812,55 +798,54 @@ static int snd_sb_csp_start(struct snd_sb_csp * p, int sample_width, int channel
}
/* Mute PCM volume */
- spin_lock_irqsave(&p->chip->mixer_lock, flags);
- mixL = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV);
- mixR = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV + 1);
- snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL & 0x7);
- snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR & 0x7);
- spin_unlock_irqrestore(&p->chip->mixer_lock, flags);
-
- spin_lock(&p->chip->reg_lock);
- set_mode_register(p->chip, 0xc0); /* c0 = STOP */
- set_mode_register(p->chip, 0x70); /* 70 = RUN */
-
- s_type = 0x00;
- if (channels == SNDRV_SB_CSP_MONO)
- s_type = 0x11; /* 000n 000n (n = 1 if mono) */
- if (sample_width == SNDRV_SB_CSP_SAMPLE_8BIT)
- s_type |= 0x22; /* 00dX 00dX (d = 1 if 8 bit samples) */
-
- if (set_codec_parameter(p->chip, 0x81, s_type)) {
- dev_dbg(dev, "%s: Set sample type command failed\n", __func__);
- goto __fail;
+ scoped_guard(spinlock_irqsave, &p->chip->mixer_lock) {
+ mixL = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV);
+ mixR = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV + 1);
+ snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL & 0x7);
+ snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR & 0x7);
}
- if (set_codec_parameter(p->chip, 0x80, 0x00)) {
- dev_dbg(dev, "%s: Codec start command failed\n", __func__);
- goto __fail;
+
+ scoped_guard(spinlock, &p->chip->reg_lock) {
+ set_mode_register(p->chip, 0xc0); /* c0 = STOP */
+ set_mode_register(p->chip, 0x70); /* 70 = RUN */
+
+ s_type = 0x00;
+ if (channels == SNDRV_SB_CSP_MONO)
+ s_type = 0x11; /* 000n 000n (n = 1 if mono) */
+ if (sample_width == SNDRV_SB_CSP_SAMPLE_8BIT)
+ s_type |= 0x22; /* 00dX 00dX (d = 1 if 8 bit samples) */
+
+ if (set_codec_parameter(p->chip, 0x81, s_type)) {
+ dev_dbg(dev, "%s: Set sample type command failed\n", __func__);
+ break;
+ }
+ if (set_codec_parameter(p->chip, 0x80, 0x00)) {
+ dev_dbg(dev, "%s: Codec start command failed\n", __func__);
+ break;
+ }
+ p->run_width = sample_width;
+ p->run_channels = channels;
+
+ p->running |= SNDRV_SB_CSP_ST_RUNNING;
+
+ if (p->mode & SNDRV_SB_CSP_MODE_QSOUND) {
+ set_codec_parameter(p->chip, 0xe0, 0x01);
+ /* enable QSound decoder */
+ set_codec_parameter(p->chip, 0x00, 0xff);
+ set_codec_parameter(p->chip, 0x01, 0xff);
+ p->running |= SNDRV_SB_CSP_ST_QSOUND;
+ /* set QSound startup value */
+ snd_sb_csp_qsound_transfer(p);
+ }
+ result = 0;
}
- p->run_width = sample_width;
- p->run_channels = channels;
-
- p->running |= SNDRV_SB_CSP_ST_RUNNING;
-
- if (p->mode & SNDRV_SB_CSP_MODE_QSOUND) {
- set_codec_parameter(p->chip, 0xe0, 0x01);
- /* enable QSound decoder */
- set_codec_parameter(p->chip, 0x00, 0xff);
- set_codec_parameter(p->chip, 0x01, 0xff);
- p->running |= SNDRV_SB_CSP_ST_QSOUND;
- /* set QSound startup value */
- snd_sb_csp_qsound_transfer(p);
- }
- result = 0;
-
- __fail:
- spin_unlock(&p->chip->reg_lock);
/* restore PCM volume */
- spin_lock_irqsave(&p->chip->mixer_lock, flags);
- snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL);
- snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR);
- spin_unlock_irqrestore(&p->chip->mixer_lock, flags);
+ if (result < 0) {
+ guard(spinlock_irqsave)(&p->chip->mixer_lock);
+ snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL);
+ snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR);
+ }
return result;
}
@@ -872,36 +857,35 @@ static int snd_sb_csp_stop(struct snd_sb_csp * p)
{
int result;
unsigned char mixL, mixR;
- unsigned long flags;
if (!(p->running & SNDRV_SB_CSP_ST_RUNNING))
return 0;
/* Mute PCM volume */
- spin_lock_irqsave(&p->chip->mixer_lock, flags);
- mixL = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV);
- mixR = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV + 1);
- snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL & 0x7);
- snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR & 0x7);
- spin_unlock_irqrestore(&p->chip->mixer_lock, flags);
-
- spin_lock(&p->chip->reg_lock);
- if (p->running & SNDRV_SB_CSP_ST_QSOUND) {
- set_codec_parameter(p->chip, 0xe0, 0x01);
- /* disable QSound decoder */
- set_codec_parameter(p->chip, 0x00, 0x00);
- set_codec_parameter(p->chip, 0x01, 0x00);
-
- p->running &= ~SNDRV_SB_CSP_ST_QSOUND;
+ scoped_guard(spinlock_irqsave, &p->chip->mixer_lock) {
+ mixL = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV);
+ mixR = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV + 1);
+ snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL & 0x7);
+ snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR & 0x7);
+ }
+
+ scoped_guard(spinlock, &p->chip->reg_lock) {
+ if (p->running & SNDRV_SB_CSP_ST_QSOUND) {
+ set_codec_parameter(p->chip, 0xe0, 0x01);
+ /* disable QSound decoder */
+ set_codec_parameter(p->chip, 0x00, 0x00);
+ set_codec_parameter(p->chip, 0x01, 0x00);
+
+ p->running &= ~SNDRV_SB_CSP_ST_QSOUND;
+ }
+ result = set_mode_register(p->chip, 0xc0); /* c0 = STOP */
}
- result = set_mode_register(p->chip, 0xc0); /* c0 = STOP */
- spin_unlock(&p->chip->reg_lock);
/* restore PCM volume */
- spin_lock_irqsave(&p->chip->mixer_lock, flags);
- snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL);
- snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR);
- spin_unlock_irqrestore(&p->chip->mixer_lock, flags);
+ scoped_guard(spinlock_irqsave, &p->chip->mixer_lock) {
+ snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL);
+ snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR);
+ }
if (!(result))
p->running &= ~(SNDRV_SB_CSP_ST_PAUSED | SNDRV_SB_CSP_ST_RUNNING);
@@ -914,14 +898,13 @@ static int snd_sb_csp_stop(struct snd_sb_csp * p)
static int snd_sb_csp_pause(struct snd_sb_csp * p)
{
int result;
- unsigned long flags;
if (!(p->running & SNDRV_SB_CSP_ST_RUNNING))
return -EBUSY;
- spin_lock_irqsave(&p->chip->reg_lock, flags);
- result = set_codec_parameter(p->chip, 0x80, 0xff);
- spin_unlock_irqrestore(&p->chip->reg_lock, flags);
+ scoped_guard(spinlock_irqsave, &p->chip->reg_lock) {
+ result = set_codec_parameter(p->chip, 0x80, 0xff);
+ }
if (!(result))
p->running |= SNDRV_SB_CSP_ST_PAUSED;
@@ -934,14 +917,13 @@ static int snd_sb_csp_pause(struct snd_sb_csp * p)
static int snd_sb_csp_restart(struct snd_sb_csp * p)
{
int result;
- unsigned long flags;
if (!(p->running & SNDRV_SB_CSP_ST_PAUSED))
return -EBUSY;
- spin_lock_irqsave(&p->chip->reg_lock, flags);
- result = set_codec_parameter(p->chip, 0x80, 0x00);
- spin_unlock_irqrestore(&p->chip->reg_lock, flags);
+ scoped_guard(spinlock_irqsave, &p->chip->reg_lock) {
+ result = set_codec_parameter(p->chip, 0x80, 0x00);
+ }
if (!(result))
p->running &= ~SNDRV_SB_CSP_ST_PAUSED;
@@ -967,15 +949,13 @@ static int snd_sb_qsound_switch_get(struct snd_kcontrol *kcontrol, struct snd_ct
static int snd_sb_qsound_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int change;
unsigned char nval;
nval = ucontrol->value.integer.value[0] & 0x01;
- spin_lock_irqsave(&p->q_lock, flags);
+ guard(spinlock_irqsave)(&p->q_lock);
change = p->q_enabled != nval;
p->q_enabled = nval;
- spin_unlock_irqrestore(&p->q_lock, flags);
return change;
}
@@ -991,19 +971,16 @@ static int snd_sb_qsound_space_info(struct snd_kcontrol *kcontrol, struct snd_ct
static int snd_sb_qsound_space_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
- spin_lock_irqsave(&p->q_lock, flags);
+ guard(spinlock_irqsave)(&p->q_lock);
ucontrol->value.integer.value[0] = p->qpos_left;
ucontrol->value.integer.value[1] = p->qpos_right;
- spin_unlock_irqrestore(&p->q_lock, flags);
return 0;
}
static int snd_sb_qsound_space_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int change;
unsigned char nval1, nval2;
@@ -1013,12 +990,11 @@ static int snd_sb_qsound_space_put(struct snd_kcontrol *kcontrol, struct snd_ctl
nval2 = ucontrol->value.integer.value[1];
if (nval2 > SNDRV_SB_CSP_QSOUND_MAX_RIGHT)
nval2 = SNDRV_SB_CSP_QSOUND_MAX_RIGHT;
- spin_lock_irqsave(&p->q_lock, flags);
+ guard(spinlock_irqsave)(&p->q_lock);
change = p->qpos_left != nval1 || p->qpos_right != nval2;
p->qpos_left = nval1;
p->qpos_right = nval2;
p->qpos_changed = change;
- spin_unlock_irqrestore(&p->q_lock, flags);
return change;
}
@@ -1074,7 +1050,6 @@ static int snd_sb_qsound_build(struct snd_sb_csp * p)
static void snd_sb_qsound_destroy(struct snd_sb_csp * p)
{
struct snd_card *card;
- unsigned long flags;
if (snd_BUG_ON(!p))
return;
@@ -1087,9 +1062,8 @@ static void snd_sb_qsound_destroy(struct snd_sb_csp * p)
p->qsound_space = NULL;
/* cancel pending transfer of QSound parameters */
- spin_lock_irqsave (&p->q_lock, flags);
+ guard(spinlock_irqsave)(&p->q_lock);
p->qpos_changed = 0;
- spin_unlock_irqrestore (&p->q_lock, flags);
}
/*
@@ -1100,7 +1074,7 @@ static int snd_sb_csp_qsound_transfer(struct snd_sb_csp * p)
{
int err = -ENXIO;
- spin_lock(&p->q_lock);
+ guard(spinlock)(&p->q_lock);
if (p->running & SNDRV_SB_CSP_ST_QSOUND) {
set_codec_parameter(p->chip, 0xe0, 0x01);
/* left channel */
@@ -1112,7 +1086,6 @@ static int snd_sb_csp_qsound_transfer(struct snd_sb_csp * p)
err = 0;
}
p->qpos_changed = 0;
- spin_unlock(&p->q_lock);
return err;
}
diff --git a/sound/isa/sb/sb16_main.c b/sound/isa/sb/sb16_main.c
index 5a083eecaa6b..4d64db4f5852 100644
--- a/sound/isa/sb/sb16_main.c
+++ b/sound/isa/sb/sb16_main.c
@@ -130,9 +130,8 @@ static void snd_sb16_csp_update(struct snd_sb *chip)
struct snd_sb_csp *csp = chip->csp;
if (csp->qpos_changed) {
- spin_lock(&chip->reg_lock);
+ guard(spinlock)(&chip->reg_lock);
csp->ops.csp_qsound_transfer (csp);
- spin_unlock(&chip->reg_lock);
}
}
}
@@ -213,9 +212,7 @@ static void snd_sb16_setup_rate(struct snd_sb *chip,
unsigned short rate,
int channel)
{
- unsigned long flags;
-
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
if (chip->mode & (channel == SNDRV_PCM_STREAM_PLAYBACK ? SB_MODE_PLAYBACK_16 : SB_MODE_CAPTURE_16))
snd_sb_ack_16bit(chip);
else
@@ -229,12 +226,10 @@ static void snd_sb16_setup_rate(struct snd_sb *chip,
snd_sbdsp_command(chip, rate >> 8);
snd_sbdsp_command(chip, rate & 0xff);
}
- spin_unlock_irqrestore(&chip->reg_lock, flags);
}
static int snd_sb16_playback_prepare(struct snd_pcm_substream *substream)
{
- unsigned long flags;
struct snd_sb *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
unsigned char format;
@@ -253,7 +248,7 @@ static int snd_sb16_playback_prepare(struct snd_pcm_substream *substream)
snd_dma_program(dma, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
count = snd_pcm_lib_period_bytes(substream);
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
if (chip->mode & SB_MODE_PLAYBACK_16) {
count >>= 1;
count--;
@@ -270,7 +265,6 @@ static int snd_sb16_playback_prepare(struct snd_pcm_substream *substream)
snd_sbdsp_command(chip, count >> 8);
snd_sbdsp_command(chip, SB_DSP_DMA8_OFF);
}
- spin_unlock_irqrestore(&chip->reg_lock, flags);
return 0;
}
@@ -278,9 +272,8 @@ static int snd_sb16_playback_trigger(struct snd_pcm_substream *substream,
int cmd)
{
struct snd_sb *chip = snd_pcm_substream_chip(substream);
- int result = 0;
- spin_lock(&chip->reg_lock);
+ guard(spinlock)(&chip->reg_lock);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
@@ -296,15 +289,13 @@ static int snd_sb16_playback_trigger(struct snd_pcm_substream *substream,
chip->mode &= ~SB_RATE_LOCK_PLAYBACK;
break;
default:
- result = -EINVAL;
+ return -EINVAL;
}
- spin_unlock(&chip->reg_lock);
- return result;
+ return 0;
}
static int snd_sb16_capture_prepare(struct snd_pcm_substream *substream)
{
- unsigned long flags;
struct snd_sb *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
unsigned char format;
@@ -322,7 +313,7 @@ static int snd_sb16_capture_prepare(struct snd_pcm_substream *substream)
snd_dma_program(dma, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
count = snd_pcm_lib_period_bytes(substream);
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
if (chip->mode & SB_MODE_CAPTURE_16) {
count >>= 1;
count--;
@@ -339,7 +330,6 @@ static int snd_sb16_capture_prepare(struct snd_pcm_substream *substream)
snd_sbdsp_command(chip, count >> 8);
snd_sbdsp_command(chip, SB_DSP_DMA8_OFF);
}
- spin_unlock_irqrestore(&chip->reg_lock, flags);
return 0;
}
@@ -347,9 +337,8 @@ static int snd_sb16_capture_trigger(struct snd_pcm_substream *substream,
int cmd)
{
struct snd_sb *chip = snd_pcm_substream_chip(substream);
- int result = 0;
- spin_lock(&chip->reg_lock);
+ guard(spinlock)(&chip->reg_lock);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
@@ -365,10 +354,9 @@ static int snd_sb16_capture_trigger(struct snd_pcm_substream *substream,
chip->mode &= ~SB_RATE_LOCK_CAPTURE;
break;
default:
- result = -EINVAL;
+ return -EINVAL;
}
- spin_unlock(&chip->reg_lock);
- return result;
+ return 0;
}
irqreturn_t snd_sb16dsp_interrupt(int irq, void *dev_id)
@@ -377,9 +365,9 @@ irqreturn_t snd_sb16dsp_interrupt(int irq, void *dev_id)
unsigned char status;
int ok;
- spin_lock(&chip->mixer_lock);
- status = snd_sbmixer_read(chip, SB_DSP4_IRQSTATUS);
- spin_unlock(&chip->mixer_lock);
+ scoped_guard(spinlock, &chip->mixer_lock) {
+ status = snd_sbmixer_read(chip, SB_DSP4_IRQSTATUS);
+ }
if ((status & SB_IRQTYPE_MPUIN) && chip->rmidi_callback)
chip->rmidi_callback(irq, chip->rmidi->private_data);
if (status & SB_IRQTYPE_8BIT) {
@@ -393,11 +381,11 @@ irqreturn_t snd_sb16dsp_interrupt(int irq, void *dev_id)
snd_pcm_period_elapsed(chip->capture_substream);
ok++;
}
- spin_lock(&chip->reg_lock);
- if (!ok)
- snd_sbdsp_command(chip, SB_DSP_DMA8_OFF);
- snd_sb_ack_8bit(chip);
- spin_unlock(&chip->reg_lock);
+ scoped_guard(spinlock, &chip->reg_lock) {
+ if (!ok)
+ snd_sbdsp_command(chip, SB_DSP_DMA8_OFF);
+ snd_sb_ack_8bit(chip);
+ }
}
if (status & SB_IRQTYPE_16BIT) {
ok = 0;
@@ -410,11 +398,11 @@ irqreturn_t snd_sb16dsp_interrupt(int irq, void *dev_id)
snd_pcm_period_elapsed(chip->capture_substream);
ok++;
}
- spin_lock(&chip->reg_lock);
- if (!ok)
- snd_sbdsp_command(chip, SB_DSP_DMA16_OFF);
- snd_sb_ack_16bit(chip);
- spin_unlock(&chip->reg_lock);
+ scoped_guard(spinlock, &chip->reg_lock) {
+ if (!ok)
+ snd_sbdsp_command(chip, SB_DSP_DMA16_OFF);
+ snd_sb_ack_16bit(chip);
+ }
}
return IRQ_HANDLED;
}
@@ -491,15 +479,12 @@ static const struct snd_pcm_hardware snd_sb16_capture =
static int snd_sb16_playback_open(struct snd_pcm_substream *substream)
{
- unsigned long flags;
struct snd_sb *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
- spin_lock_irqsave(&chip->open_lock, flags);
- if (chip->mode & SB_MODE_PLAYBACK) {
- spin_unlock_irqrestore(&chip->open_lock, flags);
+ guard(spinlock_irqsave)(&chip->open_lock);
+ if (chip->mode & SB_MODE_PLAYBACK)
return -EAGAIN;
- }
runtime->hw = snd_sb16_playback;
/* skip if 16 bit DMA was reserved for capture */
@@ -533,7 +518,6 @@ static int snd_sb16_playback_open(struct snd_pcm_substream *substream)
runtime->hw.period_bytes_max = 64 * 1024;
goto __open_ok;
}
- spin_unlock_irqrestore(&chip->open_lock, flags);
return -EAGAIN;
__open_ok:
@@ -547,34 +531,28 @@ static int snd_sb16_playback_open(struct snd_pcm_substream *substream)
if (chip->mode & SB_RATE_LOCK)
runtime->hw.rate_min = runtime->hw.rate_max = chip->locked_rate;
chip->playback_substream = substream;
- spin_unlock_irqrestore(&chip->open_lock, flags);
return 0;
}
static int snd_sb16_playback_close(struct snd_pcm_substream *substream)
{
- unsigned long flags;
struct snd_sb *chip = snd_pcm_substream_chip(substream);
snd_sb16_csp_playback_close(chip);
- spin_lock_irqsave(&chip->open_lock, flags);
+ guard(spinlock_irqsave)(&chip->open_lock);
chip->playback_substream = NULL;
chip->mode &= ~SB_MODE_PLAYBACK;
- spin_unlock_irqrestore(&chip->open_lock, flags);
return 0;
}
static int snd_sb16_capture_open(struct snd_pcm_substream *substream)
{
- unsigned long flags;
struct snd_sb *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
- spin_lock_irqsave(&chip->open_lock, flags);
- if (chip->mode & SB_MODE_CAPTURE) {
- spin_unlock_irqrestore(&chip->open_lock, flags);
+ guard(spinlock_irqsave)(&chip->open_lock);
+ if (chip->mode & SB_MODE_CAPTURE)
return -EAGAIN;
- }
runtime->hw = snd_sb16_capture;
/* skip if 16 bit DMA was reserved for playback */
@@ -608,7 +586,6 @@ static int snd_sb16_capture_open(struct snd_pcm_substream *substream)
runtime->hw.period_bytes_max = 64 * 1024;
goto __open_ok;
}
- spin_unlock_irqrestore(&chip->open_lock, flags);
return -EAGAIN;
__open_ok:
@@ -622,20 +599,17 @@ static int snd_sb16_capture_open(struct snd_pcm_substream *substream)
if (chip->mode & SB_RATE_LOCK)
runtime->hw.rate_min = runtime->hw.rate_max = chip->locked_rate;
chip->capture_substream = substream;
- spin_unlock_irqrestore(&chip->open_lock, flags);
return 0;
}
static int snd_sb16_capture_close(struct snd_pcm_substream *substream)
{
- unsigned long flags;
struct snd_sb *chip = snd_pcm_substream_chip(substream);
snd_sb16_csp_capture_close(chip);
- spin_lock_irqsave(&chip->open_lock, flags);
+ guard(spinlock_irqsave)(&chip->open_lock);
chip->capture_substream = NULL;
chip->mode &= ~SB_MODE_CAPTURE;
- spin_unlock_irqrestore(&chip->open_lock, flags);
return 0;
}
@@ -688,18 +662,15 @@ static int snd_sb16_dma_control_info(struct snd_kcontrol *kcontrol, struct snd_c
static int snd_sb16_dma_control_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_sb *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
ucontrol->value.enumerated.item[0] = snd_sb16_get_dma_mode(chip);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
return 0;
}
static int snd_sb16_dma_control_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_sb *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
unsigned char nval, oval;
int change;
@@ -709,11 +680,11 @@ static int snd_sb16_dma_control_put(struct snd_kcontrol *kcontrol, struct snd_ct
nval = ucontrol->value.enumerated.item[0];
if (nval > 2)
return -EINVAL;
- spin_lock_irqsave(&chip->reg_lock, flags);
- oval = snd_sb16_get_dma_mode(chip);
- change = nval != oval;
- snd_sb16_set_dma_mode(chip, nval);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->reg_lock) {
+ oval = snd_sb16_get_dma_mode(chip);
+ change = nval != oval;
+ snd_sb16_set_dma_mode(chip, nval);
+ }
if (change) {
snd_dma_disable(chip->dma8);
snd_dma_disable(chip->dma16);
@@ -735,14 +706,13 @@ static const struct snd_kcontrol_new snd_sb16_dma_control = {
int snd_sb16dsp_configure(struct snd_sb * chip)
{
- unsigned long flags;
unsigned char irqreg = 0, dmareg = 0, mpureg;
unsigned char realirq, realdma, realmpureg;
/* note: mpu register should be present only on SB16 Vibra soundcards */
- spin_lock_irqsave(&chip->mixer_lock, flags);
- mpureg = snd_sbmixer_read(chip, SB_DSP4_MPUSETUP) & ~0x06;
- spin_unlock_irqrestore(&chip->mixer_lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->mixer_lock) {
+ mpureg = snd_sbmixer_read(chip, SB_DSP4_MPUSETUP) & ~0x06;
+ }
switch (chip->irq) {
case 2:
case 9:
@@ -800,18 +770,17 @@ int snd_sb16dsp_configure(struct snd_sb * chip)
default:
mpureg |= 0x02; /* disable MPU */
}
- spin_lock_irqsave(&chip->mixer_lock, flags);
- snd_sbmixer_write(chip, SB_DSP4_IRQSETUP, irqreg);
- realirq = snd_sbmixer_read(chip, SB_DSP4_IRQSETUP);
+ scoped_guard(spinlock_irqsave, &chip->mixer_lock) {
+ snd_sbmixer_write(chip, SB_DSP4_IRQSETUP, irqreg);
+ realirq = snd_sbmixer_read(chip, SB_DSP4_IRQSETUP);
- snd_sbmixer_write(chip, SB_DSP4_DMASETUP, dmareg);
- realdma = snd_sbmixer_read(chip, SB_DSP4_DMASETUP);
+ snd_sbmixer_write(chip, SB_DSP4_DMASETUP, dmareg);
+ realdma = snd_sbmixer_read(chip, SB_DSP4_DMASETUP);
- snd_sbmixer_write(chip, SB_DSP4_MPUSETUP, mpureg);
- realmpureg = snd_sbmixer_read(chip, SB_DSP4_MPUSETUP);
-
- spin_unlock_irqrestore(&chip->mixer_lock, flags);
+ snd_sbmixer_write(chip, SB_DSP4_MPUSETUP, mpureg);
+ realmpureg = snd_sbmixer_read(chip, SB_DSP4_MPUSETUP);
+ }
if ((~realirq) & irqreg || (~realdma) & dmareg) {
dev_err(chip->card->dev,
"SB16 [0x%lx]: unable to set DMA & IRQ (PnP device?)\n",
diff --git a/sound/isa/sb/sb8_main.c b/sound/isa/sb/sb8_main.c
index 2ed176a5a574..a4b5725255cf 100644
--- a/sound/isa/sb/sb8_main.c
+++ b/sound/isa/sb/sb8_main.c
@@ -89,7 +89,6 @@ static int snd_sb8_hw_constraint_channels_rate(struct snd_pcm_hw_params *params,
static int snd_sb8_playback_prepare(struct snd_pcm_substream *substream)
{
- unsigned long flags;
struct snd_sb *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
unsigned int mixreg, rate, size, count;
@@ -142,48 +141,48 @@ static int snd_sb8_playback_prepare(struct snd_pcm_substream *substream)
}
size = chip->p_dma_size = snd_pcm_lib_buffer_bytes(substream);
count = chip->p_period_size = snd_pcm_lib_period_bytes(substream);
- spin_lock_irqsave(&chip->reg_lock, flags);
- snd_sbdsp_command(chip, SB_DSP_SPEAKER_ON);
- if (chip->hardware == SB_HW_JAZZ16)
- snd_sbdsp_command(chip, format);
- else if (stereo) {
- /* set playback stereo mode */
- spin_lock(&chip->mixer_lock);
- mixreg = snd_sbmixer_read(chip, SB_DSP_STEREO_SW);
- snd_sbmixer_write(chip, SB_DSP_STEREO_SW, mixreg | 0x02);
- spin_unlock(&chip->mixer_lock);
+ scoped_guard(spinlock_irqsave, &chip->reg_lock) {
+ snd_sbdsp_command(chip, SB_DSP_SPEAKER_ON);
+ if (chip->hardware == SB_HW_JAZZ16)
+ snd_sbdsp_command(chip, format);
+ else if (stereo) {
+ /* set playback stereo mode */
+ scoped_guard(spinlock, &chip->mixer_lock) {
+ mixreg = snd_sbmixer_read(chip, SB_DSP_STEREO_SW);
+ snd_sbmixer_write(chip, SB_DSP_STEREO_SW, mixreg | 0x02);
+ }
- /* Soundblaster hardware programming reference guide, 3-23 */
- snd_sbdsp_command(chip, SB_DSP_DMA8_EXIT);
- runtime->dma_area[0] = 0x80;
- snd_dma_program(dma, runtime->dma_addr, 1, DMA_MODE_WRITE);
- /* force interrupt */
- snd_sbdsp_command(chip, SB_DSP_OUTPUT);
- snd_sbdsp_command(chip, 0);
- snd_sbdsp_command(chip, 0);
+ /* Soundblaster hardware programming reference guide, 3-23 */
+ snd_sbdsp_command(chip, SB_DSP_DMA8_EXIT);
+ runtime->dma_area[0] = 0x80;
+ snd_dma_program(dma, runtime->dma_addr, 1, DMA_MODE_WRITE);
+ /* force interrupt */
+ snd_sbdsp_command(chip, SB_DSP_OUTPUT);
+ snd_sbdsp_command(chip, 0);
+ snd_sbdsp_command(chip, 0);
+ }
+ snd_sbdsp_command(chip, SB_DSP_SAMPLE_RATE);
+ if (stereo) {
+ snd_sbdsp_command(chip, 256 - runtime->rate_den / 2);
+ scoped_guard(spinlock, &chip->mixer_lock) {
+ /* save output filter status and turn it off */
+ mixreg = snd_sbmixer_read(chip, SB_DSP_PLAYBACK_FILT);
+ snd_sbmixer_write(chip, SB_DSP_PLAYBACK_FILT, mixreg | 0x20);
+ }
+ /* just use force_mode16 for temporary storate... */
+ chip->force_mode16 = mixreg;
+ } else {
+ snd_sbdsp_command(chip, 256 - runtime->rate_den);
+ }
+ if (chip->playback_format != SB_DSP_OUTPUT) {
+ if (chip->mode & SB_MODE_PLAYBACK_16)
+ count /= 2;
+ count--;
+ snd_sbdsp_command(chip, SB_DSP_BLOCK_SIZE);
+ snd_sbdsp_command(chip, count & 0xff);
+ snd_sbdsp_command(chip, count >> 8);
+ }
}
- snd_sbdsp_command(chip, SB_DSP_SAMPLE_RATE);
- if (stereo) {
- snd_sbdsp_command(chip, 256 - runtime->rate_den / 2);
- spin_lock(&chip->mixer_lock);
- /* save output filter status and turn it off */
- mixreg = snd_sbmixer_read(chip, SB_DSP_PLAYBACK_FILT);
- snd_sbmixer_write(chip, SB_DSP_PLAYBACK_FILT, mixreg | 0x20);
- spin_unlock(&chip->mixer_lock);
- /* just use force_mode16 for temporary storate... */
- chip->force_mode16 = mixreg;
- } else {
- snd_sbdsp_command(chip, 256 - runtime->rate_den);
- }
- if (chip->playback_format != SB_DSP_OUTPUT) {
- if (chip->mode & SB_MODE_PLAYBACK_16)
- count /= 2;
- count--;
- snd_sbdsp_command(chip, SB_DSP_BLOCK_SIZE);
- snd_sbdsp_command(chip, count & 0xff);
- snd_sbdsp_command(chip, count >> 8);
- }
- spin_unlock_irqrestore(&chip->reg_lock, flags);
snd_dma_program(dma, runtime->dma_addr,
size, DMA_MODE_WRITE | DMA_AUTOINIT);
return 0;
@@ -192,11 +191,10 @@ static int snd_sb8_playback_prepare(struct snd_pcm_substream *substream)
static int snd_sb8_playback_trigger(struct snd_pcm_substream *substream,
int cmd)
{
- unsigned long flags;
struct snd_sb *chip = snd_pcm_substream_chip(substream);
unsigned int count;
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
snd_sbdsp_command(chip, chip->playback_format);
@@ -211,23 +209,20 @@ static int snd_sb8_playback_trigger(struct snd_pcm_substream *substream,
struct snd_pcm_runtime *runtime = substream->runtime;
snd_sbdsp_reset(chip);
if (runtime->channels > 1) {
- spin_lock(&chip->mixer_lock);
+ guard(spinlock)(&chip->mixer_lock);
/* restore output filter and set hardware to mono mode */
snd_sbmixer_write(chip, SB_DSP_STEREO_SW, chip->force_mode16 & ~0x02);
- spin_unlock(&chip->mixer_lock);
}
} else {
snd_sbdsp_command(chip, SB_DSP_DMA8_OFF);
}
snd_sbdsp_command(chip, SB_DSP_SPEAKER_OFF);
}
- spin_unlock_irqrestore(&chip->reg_lock, flags);
return 0;
}
static int snd_sb8_capture_prepare(struct snd_pcm_substream *substream)
{
- unsigned long flags;
struct snd_sb *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
unsigned int mixreg, rate, size, count;
@@ -281,34 +276,34 @@ static int snd_sb8_capture_prepare(struct snd_pcm_substream *substream)
}
size = chip->c_dma_size = snd_pcm_lib_buffer_bytes(substream);
count = chip->c_period_size = snd_pcm_lib_period_bytes(substream);
- spin_lock_irqsave(&chip->reg_lock, flags);
- snd_sbdsp_command(chip, SB_DSP_SPEAKER_OFF);
- if (chip->hardware == SB_HW_JAZZ16)
- snd_sbdsp_command(chip, format);
- else if (stereo)
- snd_sbdsp_command(chip, SB_DSP_STEREO_8BIT);
- snd_sbdsp_command(chip, SB_DSP_SAMPLE_RATE);
- if (stereo) {
- snd_sbdsp_command(chip, 256 - runtime->rate_den / 2);
- spin_lock(&chip->mixer_lock);
- /* save input filter status and turn it off */
- mixreg = snd_sbmixer_read(chip, SB_DSP_CAPTURE_FILT);
- snd_sbmixer_write(chip, SB_DSP_CAPTURE_FILT, mixreg | 0x20);
- spin_unlock(&chip->mixer_lock);
- /* just use force_mode16 for temporary storate... */
- chip->force_mode16 = mixreg;
- } else {
- snd_sbdsp_command(chip, 256 - runtime->rate_den);
+ scoped_guard(spinlock_irqsave, &chip->reg_lock) {
+ snd_sbdsp_command(chip, SB_DSP_SPEAKER_OFF);
+ if (chip->hardware == SB_HW_JAZZ16)
+ snd_sbdsp_command(chip, format);
+ else if (stereo)
+ snd_sbdsp_command(chip, SB_DSP_STEREO_8BIT);
+ snd_sbdsp_command(chip, SB_DSP_SAMPLE_RATE);
+ if (stereo) {
+ snd_sbdsp_command(chip, 256 - runtime->rate_den / 2);
+ scoped_guard(spinlock, &chip->mixer_lock) {
+ /* save input filter status and turn it off */
+ mixreg = snd_sbmixer_read(chip, SB_DSP_CAPTURE_FILT);
+ snd_sbmixer_write(chip, SB_DSP_CAPTURE_FILT, mixreg | 0x20);
+ }
+ /* just use force_mode16 for temporary storate... */
+ chip->force_mode16 = mixreg;
+ } else {
+ snd_sbdsp_command(chip, 256 - runtime->rate_den);
+ }
+ if (chip->capture_format != SB_DSP_INPUT) {
+ if (chip->mode & SB_MODE_PLAYBACK_16)
+ count /= 2;
+ count--;
+ snd_sbdsp_command(chip, SB_DSP_BLOCK_SIZE);
+ snd_sbdsp_command(chip, count & 0xff);
+ snd_sbdsp_command(chip, count >> 8);
+ }
}
- if (chip->capture_format != SB_DSP_INPUT) {
- if (chip->mode & SB_MODE_PLAYBACK_16)
- count /= 2;
- count--;
- snd_sbdsp_command(chip, SB_DSP_BLOCK_SIZE);
- snd_sbdsp_command(chip, count & 0xff);
- snd_sbdsp_command(chip, count >> 8);
- }
- spin_unlock_irqrestore(&chip->reg_lock, flags);
snd_dma_program(dma, runtime->dma_addr,
size, DMA_MODE_READ | DMA_AUTOINIT);
return 0;
@@ -317,11 +312,10 @@ static int snd_sb8_capture_prepare(struct snd_pcm_substream *substream)
static int snd_sb8_capture_trigger(struct snd_pcm_substream *substream,
int cmd)
{
- unsigned long flags;
struct snd_sb *chip = snd_pcm_substream_chip(substream);
unsigned int count;
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
snd_sbdsp_command(chip, chip->capture_format);
@@ -337,9 +331,9 @@ static int snd_sb8_capture_trigger(struct snd_pcm_substream *substream,
snd_sbdsp_reset(chip);
if (runtime->channels > 1) {
/* restore input filter status */
- spin_lock(&chip->mixer_lock);
- snd_sbmixer_write(chip, SB_DSP_CAPTURE_FILT, chip->force_mode16);
- spin_unlock(&chip->mixer_lock);
+ scoped_guard(spinlock, &chip->mixer_lock) {
+ snd_sbmixer_write(chip, SB_DSP_CAPTURE_FILT, chip->force_mode16);
+ }
/* set hardware to mono mode */
snd_sbdsp_command(chip, SB_DSP_MONO_8BIT);
}
@@ -348,7 +342,6 @@ static int snd_sb8_capture_trigger(struct snd_pcm_substream *substream,
}
snd_sbdsp_command(chip, SB_DSP_SPEAKER_OFF);
}
- spin_unlock_irqrestore(&chip->reg_lock, flags);
return 0;
}
@@ -464,15 +457,12 @@ static int snd_sb8_open(struct snd_pcm_substream *substream)
{
struct snd_sb *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
- unsigned long flags;
- spin_lock_irqsave(&chip->open_lock, flags);
- if (chip->open) {
- spin_unlock_irqrestore(&chip->open_lock, flags);
- return -EAGAIN;
+ scoped_guard(spinlock_irqsave, &chip->open_lock) {
+ if (chip->open)
+ return -EAGAIN;
+ chip->open |= SB_OPEN_PCM;
}
- chip->open |= SB_OPEN_PCM;
- spin_unlock_irqrestore(&chip->open_lock, flags);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
chip->playback_substream = substream;
runtime->hw = snd_sb8_playback;
@@ -525,18 +515,16 @@ static int snd_sb8_open(struct snd_pcm_substream *substream)
static int snd_sb8_close(struct snd_pcm_substream *substream)
{
- unsigned long flags;
struct snd_sb *chip = snd_pcm_substream_chip(substream);
chip->playback_substream = NULL;
chip->capture_substream = NULL;
- spin_lock_irqsave(&chip->open_lock, flags);
+ guard(spinlock_irqsave)(&chip->open_lock);
chip->open &= ~SB_OPEN_PCM;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
chip->mode &= ~SB_MODE_PLAYBACK;
else
chip->mode &= ~SB_MODE_CAPTURE;
- spin_unlock_irqrestore(&chip->open_lock, flags);
return 0;
}
diff --git a/sound/isa/sb/sb8_midi.c b/sound/isa/sb/sb8_midi.c
index 637079a2f02a..1d41f2470697 100644
--- a/sound/isa/sb/sb8_midi.c
+++ b/sound/isa/sb/sb8_midi.c
@@ -35,7 +35,7 @@ irqreturn_t snd_sb8dsp_midi_interrupt(struct snd_sb *chip)
return IRQ_NONE;
}
- spin_lock(&chip->midi_input_lock);
+ guard(spinlock)(&chip->midi_input_lock);
while (max-- > 0) {
if (inb(SBP(chip, DATA_AVAIL)) & 0x80) {
byte = inb(SBP(chip, READ));
@@ -44,108 +44,90 @@ irqreturn_t snd_sb8dsp_midi_interrupt(struct snd_sb *chip)
}
}
}
- spin_unlock(&chip->midi_input_lock);
return IRQ_HANDLED;
}
static int snd_sb8dsp_midi_input_open(struct snd_rawmidi_substream *substream)
{
- unsigned long flags;
struct snd_sb *chip;
unsigned int valid_open_flags;
chip = substream->rmidi->private_data;
valid_open_flags = chip->hardware >= SB_HW_20
? SB_OPEN_MIDI_OUTPUT | SB_OPEN_MIDI_OUTPUT_TRIGGER : 0;
- spin_lock_irqsave(&chip->open_lock, flags);
- if (chip->open & ~valid_open_flags) {
- spin_unlock_irqrestore(&chip->open_lock, flags);
- return -EAGAIN;
- }
- chip->open |= SB_OPEN_MIDI_INPUT;
- chip->midi_substream_input = substream;
- if (!(chip->open & SB_OPEN_MIDI_OUTPUT)) {
- spin_unlock_irqrestore(&chip->open_lock, flags);
- snd_sbdsp_reset(chip); /* reset DSP */
- if (chip->hardware >= SB_HW_20)
- snd_sbdsp_command(chip, SB_DSP_MIDI_UART_IRQ);
- } else {
- spin_unlock_irqrestore(&chip->open_lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->open_lock) {
+ if (chip->open & ~valid_open_flags)
+ return -EAGAIN;
+ chip->open |= SB_OPEN_MIDI_INPUT;
+ chip->midi_substream_input = substream;
+ if (chip->open & SB_OPEN_MIDI_OUTPUT)
+ return 0;
}
+ snd_sbdsp_reset(chip); /* reset DSP */
+ if (chip->hardware >= SB_HW_20)
+ snd_sbdsp_command(chip, SB_DSP_MIDI_UART_IRQ);
return 0;
}
static int snd_sb8dsp_midi_output_open(struct snd_rawmidi_substream *substream)
{
- unsigned long flags;
struct snd_sb *chip;
unsigned int valid_open_flags;
chip = substream->rmidi->private_data;
valid_open_flags = chip->hardware >= SB_HW_20
? SB_OPEN_MIDI_INPUT | SB_OPEN_MIDI_INPUT_TRIGGER : 0;
- spin_lock_irqsave(&chip->open_lock, flags);
- if (chip->open & ~valid_open_flags) {
- spin_unlock_irqrestore(&chip->open_lock, flags);
- return -EAGAIN;
- }
- chip->open |= SB_OPEN_MIDI_OUTPUT;
- chip->midi_substream_output = substream;
- if (!(chip->open & SB_OPEN_MIDI_INPUT)) {
- spin_unlock_irqrestore(&chip->open_lock, flags);
- snd_sbdsp_reset(chip); /* reset DSP */
- if (chip->hardware >= SB_HW_20)
- snd_sbdsp_command(chip, SB_DSP_MIDI_UART_IRQ);
- } else {
- spin_unlock_irqrestore(&chip->open_lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->open_lock) {
+ if (chip->open & ~valid_open_flags)
+ return -EAGAIN;
+ chip->open |= SB_OPEN_MIDI_OUTPUT;
+ chip->midi_substream_output = substream;
+ if (chip->open & SB_OPEN_MIDI_INPUT)
+ return 0;
}
+ snd_sbdsp_reset(chip); /* reset DSP */
+ if (chip->hardware >= SB_HW_20)
+ snd_sbdsp_command(chip, SB_DSP_MIDI_UART_IRQ);
return 0;
}
static int snd_sb8dsp_midi_input_close(struct snd_rawmidi_substream *substream)
{
- unsigned long flags;
struct snd_sb *chip;
chip = substream->rmidi->private_data;
- spin_lock_irqsave(&chip->open_lock, flags);
- chip->open &= ~(SB_OPEN_MIDI_INPUT | SB_OPEN_MIDI_INPUT_TRIGGER);
- chip->midi_substream_input = NULL;
- if (!(chip->open & SB_OPEN_MIDI_OUTPUT)) {
- spin_unlock_irqrestore(&chip->open_lock, flags);
- snd_sbdsp_reset(chip); /* reset DSP */
- } else {
- spin_unlock_irqrestore(&chip->open_lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->open_lock) {
+ chip->open &= ~(SB_OPEN_MIDI_INPUT | SB_OPEN_MIDI_INPUT_TRIGGER);
+ chip->midi_substream_input = NULL;
+ if (chip->open & SB_OPEN_MIDI_OUTPUT)
+ return 0;
}
+ snd_sbdsp_reset(chip); /* reset DSP */
return 0;
}
static int snd_sb8dsp_midi_output_close(struct snd_rawmidi_substream *substream)
{
- unsigned long flags;
struct snd_sb *chip;
chip = substream->rmidi->private_data;
timer_delete_sync(&chip->midi_timer);
- spin_lock_irqsave(&chip->open_lock, flags);
- chip->open &= ~(SB_OPEN_MIDI_OUTPUT | SB_OPEN_MIDI_OUTPUT_TRIGGER);
- chip->midi_substream_output = NULL;
- if (!(chip->open & SB_OPEN_MIDI_INPUT)) {
- spin_unlock_irqrestore(&chip->open_lock, flags);
- snd_sbdsp_reset(chip); /* reset DSP */
- } else {
- spin_unlock_irqrestore(&chip->open_lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->open_lock) {
+ chip->open &= ~(SB_OPEN_MIDI_OUTPUT | SB_OPEN_MIDI_OUTPUT_TRIGGER);
+ chip->midi_substream_output = NULL;
+ if (chip->open & SB_OPEN_MIDI_INPUT)
+ return 0;
}
+ snd_sbdsp_reset(chip); /* reset DSP */
return 0;
}
static void snd_sb8dsp_midi_input_trigger(struct snd_rawmidi_substream *substream, int up)
{
- unsigned long flags;
struct snd_sb *chip;
chip = substream->rmidi->private_data;
- spin_lock_irqsave(&chip->open_lock, flags);
+ guard(spinlock_irqsave)(&chip->open_lock);
if (up) {
if (!(chip->open & SB_OPEN_MIDI_INPUT_TRIGGER)) {
if (chip->hardware < SB_HW_20)
@@ -159,12 +141,10 @@ static void snd_sb8dsp_midi_input_trigger(struct snd_rawmidi_substream *substrea
chip->open &= ~SB_OPEN_MIDI_INPUT_TRIGGER;
}
}
- spin_unlock_irqrestore(&chip->open_lock, flags);
}
static void snd_sb8dsp_midi_output_write(struct snd_rawmidi_substream *substream)
{
- unsigned long flags;
struct snd_sb *chip;
char byte;
int max = 32;
@@ -172,11 +152,10 @@ static void snd_sb8dsp_midi_output_write(struct snd_rawmidi_substream *substream
/* how big is Tx FIFO? */
chip = substream->rmidi->private_data;
while (max-- > 0) {
- spin_lock_irqsave(&chip->open_lock, flags);
+ guard(spinlock_irqsave)(&chip->open_lock);
if (snd_rawmidi_transmit_peek(substream, &byte, 1) != 1) {
chip->open &= ~SB_OPEN_MIDI_OUTPUT_TRIGGER;
timer_delete(&chip->midi_timer);
- spin_unlock_irqrestore(&chip->open_lock, flags);
break;
}
if (chip->hardware >= SB_HW_20) {
@@ -185,7 +164,6 @@ static void snd_sb8dsp_midi_output_write(struct snd_rawmidi_substream *substream
;
if (timeout == 0) {
/* Tx FIFO full - try again later */
- spin_unlock_irqrestore(&chip->open_lock, flags);
break;
}
outb(byte, SBP(chip, WRITE));
@@ -194,7 +172,6 @@ static void snd_sb8dsp_midi_output_write(struct snd_rawmidi_substream *substream
snd_sbdsp_command(chip, byte);
}
snd_rawmidi_transmit_ack(substream, 1);
- spin_unlock_irqrestore(&chip->open_lock, flags);
}
}
@@ -202,32 +179,30 @@ static void snd_sb8dsp_midi_output_timer(struct timer_list *t)
{
struct snd_sb *chip = timer_container_of(chip, t, midi_timer);
struct snd_rawmidi_substream *substream = chip->midi_substream_output;
- unsigned long flags;
- spin_lock_irqsave(&chip->open_lock, flags);
- mod_timer(&chip->midi_timer, 1 + jiffies);
- spin_unlock_irqrestore(&chip->open_lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->open_lock) {
+ mod_timer(&chip->midi_timer, 1 + jiffies);
+ }
snd_sb8dsp_midi_output_write(substream);
}
static void snd_sb8dsp_midi_output_trigger(struct snd_rawmidi_substream *substream, int up)
{
- unsigned long flags;
struct snd_sb *chip;
chip = substream->rmidi->private_data;
- spin_lock_irqsave(&chip->open_lock, flags);
- if (up) {
- if (!(chip->open & SB_OPEN_MIDI_OUTPUT_TRIGGER)) {
- mod_timer(&chip->midi_timer, 1 + jiffies);
- chip->open |= SB_OPEN_MIDI_OUTPUT_TRIGGER;
- }
- } else {
- if (chip->open & SB_OPEN_MIDI_OUTPUT_TRIGGER) {
- chip->open &= ~SB_OPEN_MIDI_OUTPUT_TRIGGER;
+ scoped_guard(spinlock_irqsave, &chip->open_lock) {
+ if (up) {
+ if (!(chip->open & SB_OPEN_MIDI_OUTPUT_TRIGGER)) {
+ mod_timer(&chip->midi_timer, 1 + jiffies);
+ chip->open |= SB_OPEN_MIDI_OUTPUT_TRIGGER;
+ }
+ } else {
+ if (chip->open & SB_OPEN_MIDI_OUTPUT_TRIGGER) {
+ chip->open &= ~SB_OPEN_MIDI_OUTPUT_TRIGGER;
+ }
}
}
- spin_unlock_irqrestore(&chip->open_lock, flags);
if (up)
snd_sb8dsp_midi_output_write(substream);
diff --git a/sound/isa/sb/sb_common.c b/sound/isa/sb/sb_common.c
index a4d5bf3d145f..f2848559e6da 100644
--- a/sound/isa/sb/sb_common.c
+++ b/sound/isa/sb/sb_common.c
@@ -94,23 +94,18 @@ static int snd_sbdsp_probe(struct snd_sb * chip)
int version;
int major, minor;
char *str;
- unsigned long flags;
/*
* initialization sequence
*/
- spin_lock_irqsave(&chip->reg_lock, flags);
- if (snd_sbdsp_reset(chip) < 0) {
- spin_unlock_irqrestore(&chip->reg_lock, flags);
- return -ENODEV;
+ scoped_guard(spinlock_irqsave, &chip->reg_lock) {
+ if (snd_sbdsp_reset(chip) < 0)
+ return -ENODEV;
+ version = snd_sbdsp_version(chip);
+ if (version < 0)
+ return -ENODEV;
}
- version = snd_sbdsp_version(chip);
- if (version < 0) {
- spin_unlock_irqrestore(&chip->reg_lock, flags);
- return -ENODEV;
- }
- spin_unlock_irqrestore(&chip->reg_lock, flags);
major = version >> 8;
minor = version & 0xff;
dev_dbg(chip->card->dev, "SB [0x%lx]: DSP chip found, version = %i.%i\n",
diff --git a/sound/isa/sb/sb_mixer.c b/sound/isa/sb/sb_mixer.c
index b2709ed134b4..95173b18cee3 100644
--- a/sound/isa/sb/sb_mixer.c
+++ b/sound/isa/sb/sb_mixer.c
@@ -57,15 +57,13 @@ static int snd_sbmixer_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl
static int snd_sbmixer_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_sb *sb = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int reg = kcontrol->private_value & 0xff;
int shift = (kcontrol->private_value >> 16) & 0xff;
int mask = (kcontrol->private_value >> 24) & 0xff;
unsigned char val;
- spin_lock_irqsave(&sb->mixer_lock, flags);
+ guard(spinlock_irqsave)(&sb->mixer_lock);
val = (snd_sbmixer_read(sb, reg) >> shift) & mask;
- spin_unlock_irqrestore(&sb->mixer_lock, flags);
ucontrol->value.integer.value[0] = val;
return 0;
}
@@ -73,7 +71,6 @@ static int snd_sbmixer_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_
static int snd_sbmixer_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_sb *sb = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int reg = kcontrol->private_value & 0xff;
int shift = (kcontrol->private_value >> 16) & 0x07;
int mask = (kcontrol->private_value >> 24) & 0xff;
@@ -81,13 +78,12 @@ static int snd_sbmixer_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_
unsigned char val, oval;
val = (ucontrol->value.integer.value[0] & mask) << shift;
- spin_lock_irqsave(&sb->mixer_lock, flags);
+ guard(spinlock_irqsave)(&sb->mixer_lock);
oval = snd_sbmixer_read(sb, reg);
val = (oval & ~(mask << shift)) | val;
change = val != oval;
if (change)
snd_sbmixer_write(sb, reg, val);
- spin_unlock_irqrestore(&sb->mixer_lock, flags);
return change;
}
@@ -109,7 +105,6 @@ static int snd_sbmixer_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl
static int snd_sbmixer_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_sb *sb = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int left_reg = kcontrol->private_value & 0xff;
int right_reg = (kcontrol->private_value >> 8) & 0xff;
int left_shift = (kcontrol->private_value >> 16) & 0x07;
@@ -117,10 +112,9 @@ static int snd_sbmixer_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_
int mask = (kcontrol->private_value >> 24) & 0xff;
unsigned char left, right;
- spin_lock_irqsave(&sb->mixer_lock, flags);
+ guard(spinlock_irqsave)(&sb->mixer_lock);
left = (snd_sbmixer_read(sb, left_reg) >> left_shift) & mask;
right = (snd_sbmixer_read(sb, right_reg) >> right_shift) & mask;
- spin_unlock_irqrestore(&sb->mixer_lock, flags);
ucontrol->value.integer.value[0] = left;
ucontrol->value.integer.value[1] = right;
return 0;
@@ -129,7 +123,6 @@ static int snd_sbmixer_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_
static int snd_sbmixer_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_sb *sb = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int left_reg = kcontrol->private_value & 0xff;
int right_reg = (kcontrol->private_value >> 8) & 0xff;
int left_shift = (kcontrol->private_value >> 16) & 0x07;
@@ -140,7 +133,7 @@ static int snd_sbmixer_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_
left = (ucontrol->value.integer.value[0] & mask) << left_shift;
right = (ucontrol->value.integer.value[1] & mask) << right_shift;
- spin_lock_irqsave(&sb->mixer_lock, flags);
+ guard(spinlock_irqsave)(&sb->mixer_lock);
if (left_reg == right_reg) {
oleft = snd_sbmixer_read(sb, left_reg);
left = (oleft & ~((mask << left_shift) | (mask << right_shift))) | left | right;
@@ -158,7 +151,6 @@ static int snd_sbmixer_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_
snd_sbmixer_write(sb, right_reg, right);
}
}
- spin_unlock_irqrestore(&sb->mixer_lock, flags);
return change;
}
@@ -178,12 +170,11 @@ static int snd_dt019x_input_sw_info(struct snd_kcontrol *kcontrol, struct snd_ct
static int snd_dt019x_input_sw_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_sb *sb = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
unsigned char oval;
- spin_lock_irqsave(&sb->mixer_lock, flags);
- oval = snd_sbmixer_read(sb, SB_DT019X_CAPTURE_SW);
- spin_unlock_irqrestore(&sb->mixer_lock, flags);
+ scoped_guard(spinlock_irqsave, &sb->mixer_lock) {
+ oval = snd_sbmixer_read(sb, SB_DT019X_CAPTURE_SW);
+ }
switch (oval & 0x07) {
case SB_DT019X_CAP_CD:
ucontrol->value.enumerated.item[0] = 0;
@@ -214,7 +205,6 @@ static int snd_dt019x_input_sw_get(struct snd_kcontrol *kcontrol, struct snd_ctl
static int snd_dt019x_input_sw_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_sb *sb = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int change;
unsigned char nval, oval;
@@ -239,12 +229,11 @@ static int snd_dt019x_input_sw_put(struct snd_kcontrol *kcontrol, struct snd_ctl
default:
nval = SB_DT019X_CAP_MAIN;
}
- spin_lock_irqsave(&sb->mixer_lock, flags);
+ guard(spinlock_irqsave)(&sb->mixer_lock);
oval = snd_sbmixer_read(sb, SB_DT019X_CAPTURE_SW);
change = nval != oval;
if (change)
snd_sbmixer_write(sb, SB_DT019X_CAPTURE_SW, nval);
- spin_unlock_irqrestore(&sb->mixer_lock, flags);
return change;
}
@@ -266,12 +255,10 @@ static int snd_als4k_mono_capture_route_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_sb *sb = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
unsigned char oval;
- spin_lock_irqsave(&sb->mixer_lock, flags);
+ guard(spinlock_irqsave)(&sb->mixer_lock);
oval = snd_sbmixer_read(sb, SB_ALS4000_MONO_IO_CTRL);
- spin_unlock_irqrestore(&sb->mixer_lock, flags);
oval >>= 6;
if (oval > 2)
oval = 2;
@@ -284,13 +271,12 @@ static int snd_als4k_mono_capture_route_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_sb *sb = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int change;
unsigned char nval, oval;
if (ucontrol->value.enumerated.item[0] > 2)
return -EINVAL;
- spin_lock_irqsave(&sb->mixer_lock, flags);
+ guard(spinlock_irqsave)(&sb->mixer_lock);
oval = snd_sbmixer_read(sb, SB_ALS4000_MONO_IO_CTRL);
nval = (oval & ~(3 << 6))
@@ -298,7 +284,6 @@ static int snd_als4k_mono_capture_route_put(struct snd_kcontrol *kcontrol,
change = nval != oval;
if (change)
snd_sbmixer_write(sb, SB_ALS4000_MONO_IO_CTRL, nval);
- spin_unlock_irqrestore(&sb->mixer_lock, flags);
return change;
}
@@ -319,12 +304,10 @@ static int snd_sb8mixer_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_e
static int snd_sb8mixer_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_sb *sb = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
unsigned char oval;
- spin_lock_irqsave(&sb->mixer_lock, flags);
+ guard(spinlock_irqsave)(&sb->mixer_lock);
oval = snd_sbmixer_read(sb, SB_DSP_CAPTURE_SOURCE);
- spin_unlock_irqrestore(&sb->mixer_lock, flags);
switch ((oval >> 0x01) & 0x03) {
case SB_DSP_MIXS_CD:
ucontrol->value.enumerated.item[0] = 1;
@@ -342,7 +325,6 @@ static int snd_sb8mixer_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_el
static int snd_sb8mixer_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_sb *sb = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int change;
unsigned char nval, oval;
@@ -359,13 +341,12 @@ static int snd_sb8mixer_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_el
nval = SB_DSP_MIXS_MIC;
}
nval <<= 1;
- spin_lock_irqsave(&sb->mixer_lock, flags);
+ guard(spinlock_irqsave)(&sb->mixer_lock);
oval = snd_sbmixer_read(sb, SB_DSP_CAPTURE_SOURCE);
nval |= oval & ~0x06;
change = nval != oval;
if (change)
snd_sbmixer_write(sb, SB_DSP_CAPTURE_SOURCE, nval);
- spin_unlock_irqrestore(&sb->mixer_lock, flags);
return change;
}
@@ -385,17 +366,15 @@ static int snd_sb16mixer_info_input_sw(struct snd_kcontrol *kcontrol, struct snd
static int snd_sb16mixer_get_input_sw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_sb *sb = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int reg1 = kcontrol->private_value & 0xff;
int reg2 = (kcontrol->private_value >> 8) & 0xff;
int left_shift = (kcontrol->private_value >> 16) & 0x0f;
int right_shift = (kcontrol->private_value >> 24) & 0x0f;
unsigned char val1, val2;
- spin_lock_irqsave(&sb->mixer_lock, flags);
+ guard(spinlock_irqsave)(&sb->mixer_lock);
val1 = snd_sbmixer_read(sb, reg1);
val2 = snd_sbmixer_read(sb, reg2);
- spin_unlock_irqrestore(&sb->mixer_lock, flags);
ucontrol->value.integer.value[0] = (val1 >> left_shift) & 0x01;
ucontrol->value.integer.value[1] = (val2 >> left_shift) & 0x01;
ucontrol->value.integer.value[2] = (val1 >> right_shift) & 0x01;
@@ -406,7 +385,6 @@ static int snd_sb16mixer_get_input_sw(struct snd_kcontrol *kcontrol, struct snd_
static int snd_sb16mixer_put_input_sw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_sb *sb = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int reg1 = kcontrol->private_value & 0xff;
int reg2 = (kcontrol->private_value >> 8) & 0xff;
int left_shift = (kcontrol->private_value >> 16) & 0x0f;
@@ -414,7 +392,7 @@ static int snd_sb16mixer_put_input_sw(struct snd_kcontrol *kcontrol, struct snd_
int change;
unsigned char val1, val2, oval1, oval2;
- spin_lock_irqsave(&sb->mixer_lock, flags);
+ guard(spinlock_irqsave)(&sb->mixer_lock);
oval1 = snd_sbmixer_read(sb, reg1);
oval2 = snd_sbmixer_read(sb, reg2);
val1 = oval1 & ~((1 << left_shift) | (1 << right_shift));
@@ -428,7 +406,6 @@ static int snd_sb16mixer_put_input_sw(struct snd_kcontrol *kcontrol, struct snd_
snd_sbmixer_write(sb, reg1, val1);
snd_sbmixer_write(sb, reg2, val2);
}
- spin_unlock_irqrestore(&sb->mixer_lock, flags);
return change;
}
@@ -697,20 +674,18 @@ static int snd_sbmixer_init(struct snd_sb *chip,
int map_count,
char *name)
{
- unsigned long flags;
struct snd_card *card = chip->card;
int idx, err;
/* mixer reset */
- spin_lock_irqsave(&chip->mixer_lock, flags);
- snd_sbmixer_write(chip, 0x00, 0x00);
- spin_unlock_irqrestore(&chip->mixer_lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->mixer_lock) {
+ snd_sbmixer_write(chip, 0x00, 0x00);
+ }
/* mute and zero volume channels */
for (idx = 0; idx < map_count; idx++) {
- spin_lock_irqsave(&chip->mixer_lock, flags);
+ guard(spinlock_irqsave)(&chip->mixer_lock);
snd_sbmixer_write(chip, map[idx][0], map[idx][1]);
- spin_unlock_irqrestore(&chip->mixer_lock, flags);
}
for (idx = 0; idx < controls_count; idx++) {
--
2.50.1
^ permalink raw reply related [flat|nested] 19+ messages in thread* [PATCH 14/18] ALSA: emu8000: Use guard() for spin locks
2025-08-29 14:52 [PATCH 00/18] ALSA: Use auto-cleanup macros for ISA drivers Takashi Iwai
` (12 preceding siblings ...)
2025-08-29 14:52 ` [PATCH 13/18] ALSA: sb: Use guard() for spin locks Takashi Iwai
@ 2025-08-29 14:52 ` Takashi Iwai
2025-08-29 14:52 ` [PATCH 15/18] ALSA: sscape: " Takashi Iwai
` (3 subsequent siblings)
17 siblings, 0 replies; 19+ messages in thread
From: Takashi Iwai @ 2025-08-29 14:52 UTC (permalink / raw)
To: linux-sound
Clean up the code using guard() for spin locks.
Merely code refactoring, and no behavior change.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
sound/isa/sb/emu8000.c | 94 ++++++++++++++++----------------------
sound/isa/sb/emu8000_pcm.c | 46 +++++++++----------
2 files changed, 61 insertions(+), 79 deletions(-)
diff --git a/sound/isa/sb/emu8000.c b/sound/isa/sb/emu8000.c
index 312b217491d4..12c296ee34ec 100644
--- a/sound/isa/sb/emu8000.c
+++ b/sound/isa/sb/emu8000.c
@@ -35,60 +35,49 @@
/* Write a word */
void snd_emu8000_poke(struct snd_emu8000 *emu, unsigned int port, unsigned int reg, unsigned int val)
{
- unsigned long flags;
- spin_lock_irqsave(&emu->reg_lock, flags);
+ guard(spinlock_irqsave)(&emu->reg_lock);
if (reg != emu->last_reg) {
outw((unsigned short)reg, EMU8000_PTR(emu)); /* Set register */
emu->last_reg = reg;
}
outw((unsigned short)val, port); /* Send data */
- spin_unlock_irqrestore(&emu->reg_lock, flags);
}
/* Read a word */
unsigned short snd_emu8000_peek(struct snd_emu8000 *emu, unsigned int port, unsigned int reg)
{
- unsigned short res;
- unsigned long flags;
- spin_lock_irqsave(&emu->reg_lock, flags);
+ guard(spinlock_irqsave)(&emu->reg_lock);
if (reg != emu->last_reg) {
outw((unsigned short)reg, EMU8000_PTR(emu)); /* Set register */
emu->last_reg = reg;
}
- res = inw(port); /* Read data */
- spin_unlock_irqrestore(&emu->reg_lock, flags);
- return res;
+ return inw(port); /* Read data */
}
/* Write a double word */
void snd_emu8000_poke_dw(struct snd_emu8000 *emu, unsigned int port, unsigned int reg, unsigned int val)
{
- unsigned long flags;
- spin_lock_irqsave(&emu->reg_lock, flags);
+ guard(spinlock_irqsave)(&emu->reg_lock);
if (reg != emu->last_reg) {
outw((unsigned short)reg, EMU8000_PTR(emu)); /* Set register */
emu->last_reg = reg;
}
outw((unsigned short)val, port); /* Send low word of data */
outw((unsigned short)(val>>16), port+2); /* Send high word of data */
- spin_unlock_irqrestore(&emu->reg_lock, flags);
}
/* Read a double word */
unsigned int snd_emu8000_peek_dw(struct snd_emu8000 *emu, unsigned int port, unsigned int reg)
{
unsigned short low;
- unsigned int res;
- unsigned long flags;
- spin_lock_irqsave(&emu->reg_lock, flags);
+
+ guard(spinlock_irqsave)(&emu->reg_lock);
if (reg != emu->last_reg) {
outw((unsigned short)reg, EMU8000_PTR(emu)); /* Set register */
emu->last_reg = reg;
}
low = inw(port); /* Read low word of data */
- res = low + (inw(port+2) << 16);
- spin_unlock_irqrestore(&emu->reg_lock, flags);
- return res;
+ return low + (inw(port+2) << 16);
}
/*
@@ -456,8 +445,6 @@ size_dram(struct snd_emu8000 *emu)
/*exported*/ void
snd_emu8000_init_fm(struct snd_emu8000 *emu)
{
- unsigned long flags;
-
/* Initialize the last two channels for DRAM refresh and producing
the reverb and chorus effects for Yamaha OPL-3 synthesizer */
@@ -479,12 +466,12 @@ snd_emu8000_init_fm(struct snd_emu8000 *emu)
snd_emu8000_poke((emu), EMU8000_DATA0(emu), EMU8000_CMD(1, (30)), 0);
- spin_lock_irqsave(&emu->reg_lock, flags);
- while (!(inw(EMU8000_PTR(emu)) & 0x1000))
- ;
- while ((inw(EMU8000_PTR(emu)) & 0x1000))
- ;
- spin_unlock_irqrestore(&emu->reg_lock, flags);
+ scoped_guard(spinlock_irqsave, &emu->reg_lock) {
+ while (!(inw(EMU8000_PTR(emu)) & 0x1000))
+ ;
+ while ((inw(EMU8000_PTR(emu)) & 0x1000))
+ ;
+ }
snd_emu8000_poke((emu), EMU8000_DATA0(emu), EMU8000_CMD(1, (30)), 0x4828);
/* this is really odd part.. */
outb(0x3C, EMU8000_PTR(emu));
@@ -838,20 +825,19 @@ static int mixer_bass_treble_get(struct snd_kcontrol *kcontrol, struct snd_ctl_e
static int mixer_bass_treble_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_emu8000 *emu = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int change;
unsigned short val1;
val1 = ucontrol->value.integer.value[0] % 12;
- spin_lock_irqsave(&emu->control_lock, flags);
- if (kcontrol->private_value) {
- change = val1 != emu->treble_level;
- emu->treble_level = val1;
- } else {
- change = val1 != emu->bass_level;
- emu->bass_level = val1;
+ scoped_guard(spinlock_irqsave, &emu->control_lock) {
+ if (kcontrol->private_value) {
+ change = val1 != emu->treble_level;
+ emu->treble_level = val1;
+ } else {
+ change = val1 != emu->bass_level;
+ emu->bass_level = val1;
+ }
}
- spin_unlock_irqrestore(&emu->control_lock, flags);
snd_emu8000_update_equalizer(emu);
return change;
}
@@ -899,21 +885,20 @@ static int mixer_chorus_reverb_get(struct snd_kcontrol *kcontrol, struct snd_ctl
static int mixer_chorus_reverb_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_emu8000 *emu = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int change;
unsigned short val1;
- spin_lock_irqsave(&emu->control_lock, flags);
- if (kcontrol->private_value) {
- val1 = ucontrol->value.integer.value[0] % SNDRV_EMU8000_CHORUS_NUMBERS;
- change = val1 != emu->chorus_mode;
- emu->chorus_mode = val1;
- } else {
- val1 = ucontrol->value.integer.value[0] % SNDRV_EMU8000_REVERB_NUMBERS;
- change = val1 != emu->reverb_mode;
- emu->reverb_mode = val1;
+ scoped_guard(spinlock_irqsave, &emu->control_lock) {
+ if (kcontrol->private_value) {
+ val1 = ucontrol->value.integer.value[0] % SNDRV_EMU8000_CHORUS_NUMBERS;
+ change = val1 != emu->chorus_mode;
+ emu->chorus_mode = val1;
+ } else {
+ val1 = ucontrol->value.integer.value[0] % SNDRV_EMU8000_REVERB_NUMBERS;
+ change = val1 != emu->reverb_mode;
+ emu->reverb_mode = val1;
+ }
}
- spin_unlock_irqrestore(&emu->control_lock, flags);
if (change) {
if (kcontrol->private_value)
snd_emu8000_update_chorus_mode(emu);
@@ -966,20 +951,19 @@ static int mixer_fm_depth_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem
static int mixer_fm_depth_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_emu8000 *emu = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int change;
unsigned short val1;
val1 = ucontrol->value.integer.value[0] % 256;
- spin_lock_irqsave(&emu->control_lock, flags);
- if (kcontrol->private_value) {
- change = val1 != emu->fm_chorus_depth;
- emu->fm_chorus_depth = val1;
- } else {
- change = val1 != emu->fm_reverb_depth;
- emu->fm_reverb_depth = val1;
+ scoped_guard(spinlock_irqsave, &emu->control_lock) {
+ if (kcontrol->private_value) {
+ change = val1 != emu->fm_chorus_depth;
+ emu->fm_chorus_depth = val1;
+ } else {
+ change = val1 != emu->fm_reverb_depth;
+ emu->fm_reverb_depth = val1;
+ }
}
- spin_unlock_irqrestore(&emu->control_lock, flags);
if (change)
snd_emu8000_init_fm(emu);
return change;
diff --git a/sound/isa/sb/emu8000_pcm.c b/sound/isa/sb/emu8000_pcm.c
index 215bbcd0360e..656a655d618d 100644
--- a/sound/isa/sb/emu8000_pcm.c
+++ b/sound/isa/sb/emu8000_pcm.c
@@ -184,28 +184,30 @@ static void emu8k_pcm_timer_func(struct timer_list *t)
{
struct snd_emu8k_pcm *rec = timer_container_of(rec, t, timer);
int ptr, delta;
+ bool period_elapsed = false;
- spin_lock(&rec->timer_lock);
- /* update the current pointer */
- ptr = emu8k_get_curpos(rec, 0);
- if (ptr < rec->last_ptr)
- delta = ptr + rec->buf_size - rec->last_ptr;
- else
- delta = ptr - rec->last_ptr;
- rec->period_pos += delta;
- rec->last_ptr = ptr;
+ scoped_guard(spinlock, &rec->timer_lock) {
+ /* update the current pointer */
+ ptr = emu8k_get_curpos(rec, 0);
+ if (ptr < rec->last_ptr)
+ delta = ptr + rec->buf_size - rec->last_ptr;
+ else
+ delta = ptr - rec->last_ptr;
+ rec->period_pos += delta;
+ rec->last_ptr = ptr;
- /* reprogram timer */
- mod_timer(&rec->timer, jiffies + 1);
+ /* reprogram timer */
+ mod_timer(&rec->timer, jiffies + 1);
- /* update period */
- if (rec->period_pos >= (int)rec->period_size) {
- rec->period_pos %= rec->period_size;
- spin_unlock(&rec->timer_lock);
- snd_pcm_period_elapsed(rec->substream);
- return;
+ /* update period */
+ if (rec->period_pos >= (int)rec->period_size) {
+ rec->period_pos %= rec->period_size;
+ period_elapsed = true;
+ }
}
- spin_unlock(&rec->timer_lock);
+
+ if (period_elapsed)
+ snd_pcm_period_elapsed(rec->substream);
}
@@ -321,7 +323,6 @@ static void setup_voice(struct snd_emu8k_pcm *rec, int ch)
*/
static void start_voice(struct snd_emu8k_pcm *rec, int ch)
{
- unsigned long flags;
struct snd_emu8000 *hw = rec->emu;
unsigned int temp, aux;
int pt = calc_pitch_target(rec->pitch);
@@ -343,12 +344,11 @@ static void start_voice(struct snd_emu8k_pcm *rec, int ch)
EMU8000_CPF_WRITE(hw, ch, pt << 16);
/* start timer */
- spin_lock_irqsave(&rec->timer_lock, flags);
+ guard(spinlock_irqsave)(&rec->timer_lock);
if (! rec->timer_running) {
mod_timer(&rec->timer, jiffies + 1);
rec->timer_running = 1;
}
- spin_unlock_irqrestore(&rec->timer_lock, flags);
}
/*
@@ -356,18 +356,16 @@ static void start_voice(struct snd_emu8k_pcm *rec, int ch)
*/
static void stop_voice(struct snd_emu8k_pcm *rec, int ch)
{
- unsigned long flags;
struct snd_emu8000 *hw = rec->emu;
EMU8000_DCYSUSV_WRITE(hw, ch, 0x807F);
/* stop timer */
- spin_lock_irqsave(&rec->timer_lock, flags);
+ guard(spinlock_irqsave)(&rec->timer_lock);
if (rec->timer_running) {
timer_delete(&rec->timer);
rec->timer_running = 0;
}
- spin_unlock_irqrestore(&rec->timer_lock, flags);
}
static int emu8k_pcm_trigger(struct snd_pcm_substream *subs, int cmd)
--
2.50.1
^ permalink raw reply related [flat|nested] 19+ messages in thread* [PATCH 15/18] ALSA: sscape: Use guard() for spin locks
2025-08-29 14:52 [PATCH 00/18] ALSA: Use auto-cleanup macros for ISA drivers Takashi Iwai
` (13 preceding siblings ...)
2025-08-29 14:52 ` [PATCH 14/18] ALSA: emu8000: " Takashi Iwai
@ 2025-08-29 14:52 ` Takashi Iwai
2025-08-29 14:52 ` [PATCH 16/18] ALSA: wss: Use guard() for mutex locks Takashi Iwai
` (2 subsequent siblings)
17 siblings, 0 replies; 19+ messages in thread
From: Takashi Iwai @ 2025-08-29 14:52 UTC (permalink / raw)
To: linux-sound
Clean up the code using guard() for spin locks.
Merely code refactoring, and no behavior change.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
sound/isa/sscape.c | 184 ++++++++++++++++++++-------------------------
1 file changed, 81 insertions(+), 103 deletions(-)
diff --git a/sound/isa/sscape.c b/sound/isa/sscape.c
index 709a1659d66f..a31ca75774a6 100644
--- a/sound/isa/sscape.c
+++ b/sound/isa/sscape.c
@@ -200,11 +200,8 @@ static inline void sscape_write_unsafe(unsigned io_base, enum GA_REG reg,
static void sscape_write(struct soundscape *s, enum GA_REG reg,
unsigned char val)
{
- unsigned long flags;
-
- spin_lock_irqsave(&s->lock, flags);
+ guard(spinlock_irqsave)(&s->lock);
sscape_write_unsafe(s->io_base, reg, val);
- spin_unlock_irqrestore(&s->lock, flags);
}
/*
@@ -367,12 +364,11 @@ static int obp_startup_ack(struct soundscape *s, unsigned timeout)
unsigned long end_time = jiffies + msecs_to_jiffies(timeout);
do {
- unsigned long flags;
int x;
- spin_lock_irqsave(&s->lock, flags);
- x = host_read_unsafe(s->io_base);
- spin_unlock_irqrestore(&s->lock, flags);
+ scoped_guard(spinlock_irqsave, &s->lock) {
+ x = host_read_unsafe(s->io_base);
+ }
if (x == 0xfe || x == 0xff)
return 1;
@@ -394,12 +390,11 @@ static int host_startup_ack(struct soundscape *s, unsigned timeout)
unsigned long end_time = jiffies + msecs_to_jiffies(timeout);
do {
- unsigned long flags;
int x;
- spin_lock_irqsave(&s->lock, flags);
- x = host_read_unsafe(s->io_base);
- spin_unlock_irqrestore(&s->lock, flags);
+ scoped_guard(spinlock_irqsave, &s->lock) {
+ x = host_read_unsafe(s->io_base);
+ }
if (x == 0xfe)
return 1;
@@ -415,7 +410,6 @@ static int host_startup_ack(struct soundscape *s, unsigned timeout)
static int upload_dma_data(struct soundscape *s, const unsigned char *data,
size_t size)
{
- unsigned long flags;
struct snd_dma_buffer dma;
int ret;
unsigned char val;
@@ -423,62 +417,57 @@ static int upload_dma_data(struct soundscape *s, const unsigned char *data,
if (!get_dmabuf(s, &dma, PAGE_ALIGN(32 * 1024)))
return -ENOMEM;
- spin_lock_irqsave(&s->lock, flags);
+ scoped_guard(spinlock_irqsave, &s->lock) {
- /*
- * Reset the board ...
- */
- val = sscape_read_unsafe(s->io_base, GA_HMCTL_REG);
- sscape_write_unsafe(s->io_base, GA_HMCTL_REG, val & 0x3f);
+ /*
+ * Reset the board ...
+ */
+ val = sscape_read_unsafe(s->io_base, GA_HMCTL_REG);
+ sscape_write_unsafe(s->io_base, GA_HMCTL_REG, val & 0x3f);
- /*
- * Enable the DMA channels and configure them ...
- */
- val = (s->chip->dma1 << 4) | DMA_8BIT;
- sscape_write_unsafe(s->io_base, GA_DMAA_REG, val);
- sscape_write_unsafe(s->io_base, GA_DMAB_REG, 0x20);
+ /*
+ * Enable the DMA channels and configure them ...
+ */
+ val = (s->chip->dma1 << 4) | DMA_8BIT;
+ sscape_write_unsafe(s->io_base, GA_DMAA_REG, val);
+ sscape_write_unsafe(s->io_base, GA_DMAB_REG, 0x20);
- /*
- * Take the board out of reset ...
- */
- val = sscape_read_unsafe(s->io_base, GA_HMCTL_REG);
- sscape_write_unsafe(s->io_base, GA_HMCTL_REG, val | 0x80);
+ /*
+ * Take the board out of reset ...
+ */
+ val = sscape_read_unsafe(s->io_base, GA_HMCTL_REG);
+ sscape_write_unsafe(s->io_base, GA_HMCTL_REG, val | 0x80);
- /*
- * Upload the firmware to the SoundScape
- * board through the DMA channel ...
- */
- while (size != 0) {
- unsigned long len;
+ /*
+ * Upload the firmware to the SoundScape
+ * board through the DMA channel ...
+ */
+ while (size != 0) {
+ unsigned long len;
- len = min(size, dma.bytes);
- memcpy(dma.area, data, len);
- data += len;
- size -= len;
+ len = min(size, dma.bytes);
+ memcpy(dma.area, data, len);
+ data += len;
+ size -= len;
- snd_dma_program(s->chip->dma1, dma.addr, len, DMA_MODE_WRITE);
- sscape_start_dma_unsafe(s->io_base, GA_DMAA_REG);
- if (!sscape_wait_dma_unsafe(s->io_base, GA_DMAA_REG, 5000)) {
- /*
- * Don't forget to release this spinlock we're holding
- */
- spin_unlock_irqrestore(&s->lock, flags);
+ snd_dma_program(s->chip->dma1, dma.addr, len, DMA_MODE_WRITE);
+ sscape_start_dma_unsafe(s->io_base, GA_DMAA_REG);
+ if (!sscape_wait_dma_unsafe(s->io_base, GA_DMAA_REG, 5000)) {
+ dev_err(s->dev, "sscape: DMA upload has timed out\n");
+ ret = -EAGAIN;
+ goto _release_dma;
+ }
+ } /* while */
- dev_err(s->dev, "sscape: DMA upload has timed out\n");
- ret = -EAGAIN;
- goto _release_dma;
- }
- } /* while */
+ set_host_mode_unsafe(s->io_base);
+ outb(0x0, s->io_base);
- set_host_mode_unsafe(s->io_base);
- outb(0x0, s->io_base);
-
- /*
- * Boot the board ... (I think)
- */
- val = sscape_read_unsafe(s->io_base, GA_HMCTL_REG);
- sscape_write_unsafe(s->io_base, GA_HMCTL_REG, val | 0x40);
- spin_unlock_irqrestore(&s->lock, flags);
+ /*
+ * Boot the board ... (I think)
+ */
+ val = sscape_read_unsafe(s->io_base, GA_HMCTL_REG);
+ sscape_write_unsafe(s->io_base, GA_HMCTL_REG, val | 0x40);
+ }
/*
* If all has gone well, then the board should acknowledge
@@ -513,7 +502,6 @@ static int upload_dma_data(struct soundscape *s, const unsigned char *data,
static int sscape_upload_bootblock(struct snd_card *card)
{
struct soundscape *sscape = get_card_soundscape(card);
- unsigned long flags;
const struct firmware *init_fw = NULL;
int data = 0;
int ret;
@@ -527,15 +515,13 @@ static int sscape_upload_bootblock(struct snd_card *card)
release_firmware(init_fw);
- spin_lock_irqsave(&sscape->lock, flags);
+ guard(spinlock_irqsave)(&sscape->lock);
if (ret == 0)
data = host_read_ctrl_unsafe(sscape->io_base, 100);
if (data & 0x10)
sscape_write_unsafe(sscape->io_base, GA_SMCFGA_REG, 0x2f);
- spin_unlock_irqrestore(&sscape->lock, flags);
-
data &= 0xf;
if (ret == 0 && data > 7) {
dev_err(card->dev,
@@ -593,11 +579,9 @@ static int sscape_midi_get(struct snd_kcontrol *kctl,
struct snd_wss *chip = snd_kcontrol_chip(kctl);
struct snd_card *card = chip->card;
register struct soundscape *s = get_card_soundscape(card);
- unsigned long flags;
- spin_lock_irqsave(&s->lock, flags);
+ guard(spinlock_irqsave)(&s->lock);
uctl->value.integer.value[0] = s->midi_vol;
- spin_unlock_irqrestore(&s->lock, flags);
return 0;
}
@@ -607,11 +591,10 @@ static int sscape_midi_put(struct snd_kcontrol *kctl,
struct snd_wss *chip = snd_kcontrol_chip(kctl);
struct snd_card *card = chip->card;
struct soundscape *s = get_card_soundscape(card);
- unsigned long flags;
int change;
unsigned char new_val;
- spin_lock_irqsave(&s->lock, flags);
+ guard(spinlock_irqsave)(&s->lock);
new_val = uctl->value.integer.value[0] & 127;
/*
@@ -642,7 +625,6 @@ static int sscape_midi_put(struct snd_kcontrol *kctl,
*/
set_midi_mode_unsafe(s->io_base);
- spin_unlock_irqrestore(&s->lock, flags);
return change;
}
@@ -852,8 +834,6 @@ static int create_ad1845(struct snd_card *card, unsigned port,
err = snd_wss_create(card, port, -1, irq, dma1, dma2,
codec_type, WSS_HWSHARE_DMA1, &chip);
if (!err) {
- unsigned long flags;
-
if (sscape->type != SSCAPE_VIVO) {
/*
* The input clock frequency on the SoundScape must
@@ -861,9 +841,9 @@ static int create_ad1845(struct snd_card *card, unsigned port,
* to get the playback to sound correct ...
*/
snd_wss_mce_up(chip);
- spin_lock_irqsave(&chip->reg_lock, flags);
- snd_wss_out(chip, AD1845_CLOCK, 0x20);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->reg_lock) {
+ snd_wss_out(chip, AD1845_CLOCK, 0x20);
+ }
snd_wss_mce_down(chip);
}
@@ -920,7 +900,6 @@ static int create_sscape(int dev, struct snd_card *card)
unsigned mpu_irq_cfg;
struct resource *io_res;
struct resource *wss_res;
- unsigned long flags;
int err;
int val;
const char *name;
@@ -1006,34 +985,34 @@ static int create_sscape(int dev, struct snd_card *card)
* Tell the on-board devices where their resources are (I think -
* I can't be sure without a datasheet ... So many magic values!)
*/
- spin_lock_irqsave(&sscape->lock, flags);
+ scoped_guard(spinlock_irqsave, &sscape->lock) {
- sscape_write_unsafe(sscape->io_base, GA_SMCFGA_REG, 0x2e);
- sscape_write_unsafe(sscape->io_base, GA_SMCFGB_REG, 0x00);
+ sscape_write_unsafe(sscape->io_base, GA_SMCFGA_REG, 0x2e);
+ sscape_write_unsafe(sscape->io_base, GA_SMCFGB_REG, 0x00);
- /*
- * Enable and configure the DMA channels ...
- */
- sscape_write_unsafe(sscape->io_base, GA_DMACFG_REG, 0x50);
- dma_cfg = (sscape->ic_type == IC_OPUS ? 0x40 : 0x70);
- sscape_write_unsafe(sscape->io_base, GA_DMAA_REG, dma_cfg);
- sscape_write_unsafe(sscape->io_base, GA_DMAB_REG, 0x20);
+ /*
+ * Enable and configure the DMA channels ...
+ */
+ sscape_write_unsafe(sscape->io_base, GA_DMACFG_REG, 0x50);
+ dma_cfg = (sscape->ic_type == IC_OPUS ? 0x40 : 0x70);
+ sscape_write_unsafe(sscape->io_base, GA_DMAA_REG, dma_cfg);
+ sscape_write_unsafe(sscape->io_base, GA_DMAB_REG, 0x20);
- mpu_irq_cfg |= mpu_irq_cfg << 2;
- val = sscape_read_unsafe(sscape->io_base, GA_HMCTL_REG) & 0xF7;
- if (joystick[dev])
- val |= 8;
- sscape_write_unsafe(sscape->io_base, GA_HMCTL_REG, val | 0x10);
- sscape_write_unsafe(sscape->io_base, GA_INTCFG_REG, 0xf0 | mpu_irq_cfg);
- sscape_write_unsafe(sscape->io_base,
- GA_CDCFG_REG, 0x09 | DMA_8BIT
- | (dma[dev] << 4) | (irq_cfg << 1));
- /*
- * Enable the master IRQ ...
- */
- sscape_write_unsafe(sscape->io_base, GA_INTENA_REG, 0x80);
+ mpu_irq_cfg |= mpu_irq_cfg << 2;
+ val = sscape_read_unsafe(sscape->io_base, GA_HMCTL_REG) & 0xF7;
+ if (joystick[dev])
+ val |= 8;
+ sscape_write_unsafe(sscape->io_base, GA_HMCTL_REG, val | 0x10);
+ sscape_write_unsafe(sscape->io_base, GA_INTCFG_REG, 0xf0 | mpu_irq_cfg);
+ sscape_write_unsafe(sscape->io_base,
+ GA_CDCFG_REG, 0x09 | DMA_8BIT
+ | (dma[dev] << 4) | (irq_cfg << 1));
+ /*
+ * Enable the master IRQ ...
+ */
+ sscape_write_unsafe(sscape->io_base, GA_INTENA_REG, 0x80);
- spin_unlock_irqrestore(&sscape->lock, flags);
+ }
/*
* We have now enabled the codec chip, and so we should
@@ -1073,7 +1052,7 @@ static int create_sscape(int dev, struct snd_card *card)
/*
* Initialize mixer
*/
- spin_lock_irqsave(&sscape->lock, flags);
+ guard(spinlock_irqsave)(&sscape->lock);
sscape->midi_vol = 0;
host_write_ctrl_unsafe(sscape->io_base,
CMD_SET_MIDI_VOL, 100);
@@ -1090,7 +1069,6 @@ static int create_sscape(int dev, struct snd_card *card)
host_write_ctrl_unsafe(sscape->io_base, CMD_ACK, 100);
set_midi_mode_unsafe(sscape->io_base);
- spin_unlock_irqrestore(&sscape->lock, flags);
}
}
--
2.50.1
^ permalink raw reply related [flat|nested] 19+ messages in thread* [PATCH 16/18] ALSA: wss: Use guard() for mutex locks
2025-08-29 14:52 [PATCH 00/18] ALSA: Use auto-cleanup macros for ISA drivers Takashi Iwai
` (14 preceding siblings ...)
2025-08-29 14:52 ` [PATCH 15/18] ALSA: sscape: " Takashi Iwai
@ 2025-08-29 14:52 ` Takashi Iwai
2025-08-29 14:52 ` [PATCH 17/18] ALSA: wss: Use guard() for spin locks Takashi Iwai
2025-08-29 14:52 ` [PATCH 18/18] ALSA: wavefront: " Takashi Iwai
17 siblings, 0 replies; 19+ messages in thread
From: Takashi Iwai @ 2025-08-29 14:52 UTC (permalink / raw)
To: linux-sound
Replace the manual mutex lock/unlock pairs with guard() for code
simplification.
Only code refactoring, and no behavior change.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
sound/isa/wss/wss_lib.c | 21 ++++++---------------
1 file changed, 6 insertions(+), 15 deletions(-)
diff --git a/sound/isa/wss/wss_lib.c b/sound/isa/wss/wss_lib.c
index 1b6a80021d18..0a2c040af5f0 100644
--- a/sound/isa/wss/wss_lib.c
+++ b/sound/isa/wss/wss_lib.c
@@ -618,7 +618,7 @@ static void snd_wss_playback_format(struct snd_wss *chip,
unsigned long flags;
int full_calib = 1;
- mutex_lock(&chip->mce_mutex);
+ guard(mutex)(&chip->mce_mutex);
if (chip->hardware == WSS_HW_CS4231A ||
(chip->hardware & WSS_HW_CS4232_MASK)) {
spin_lock_irqsave(&chip->reg_lock, flags);
@@ -669,7 +669,6 @@ static void snd_wss_playback_format(struct snd_wss *chip,
udelay(100); /* this seems to help */
snd_wss_mce_down(chip);
}
- mutex_unlock(&chip->mce_mutex);
}
static void snd_wss_capture_format(struct snd_wss *chip,
@@ -679,7 +678,7 @@ static void snd_wss_capture_format(struct snd_wss *chip,
unsigned long flags;
int full_calib = 1;
- mutex_lock(&chip->mce_mutex);
+ guard(mutex)(&chip->mce_mutex);
if (chip->hardware == WSS_HW_CS4231A ||
(chip->hardware & WSS_HW_CS4232_MASK)) {
spin_lock_irqsave(&chip->reg_lock, flags);
@@ -736,7 +735,6 @@ static void snd_wss_capture_format(struct snd_wss *chip,
spin_unlock_irqrestore(&chip->reg_lock, flags);
snd_wss_mce_down(chip);
}
- mutex_unlock(&chip->mce_mutex);
}
/*
@@ -862,15 +860,12 @@ static int snd_wss_open(struct snd_wss *chip, unsigned int mode)
{
unsigned long flags;
- mutex_lock(&chip->open_mutex);
+ guard(mutex)(&chip->open_mutex);
if ((chip->mode & mode) ||
- ((chip->mode & WSS_MODE_OPEN) && chip->single_dma)) {
- mutex_unlock(&chip->open_mutex);
+ ((chip->mode & WSS_MODE_OPEN) && chip->single_dma))
return -EAGAIN;
- }
if (chip->mode & WSS_MODE_OPEN) {
chip->mode |= mode;
- mutex_unlock(&chip->open_mutex);
return 0;
}
/* ok. now enable and ack CODEC IRQ */
@@ -896,7 +891,6 @@ static int snd_wss_open(struct snd_wss *chip, unsigned int mode)
spin_unlock_irqrestore(&chip->reg_lock, flags);
chip->mode = mode;
- mutex_unlock(&chip->open_mutex);
return 0;
}
@@ -904,12 +898,10 @@ static void snd_wss_close(struct snd_wss *chip, unsigned int mode)
{
unsigned long flags;
- mutex_lock(&chip->open_mutex);
+ guard(mutex)(&chip->open_mutex);
chip->mode &= ~mode;
- if (chip->mode & WSS_MODE_OPEN) {
- mutex_unlock(&chip->open_mutex);
+ if (chip->mode & WSS_MODE_OPEN)
return;
- }
/* disable IRQ */
spin_lock_irqsave(&chip->reg_lock, flags);
if (!(chip->hardware & WSS_HW_AD1848_MASK))
@@ -943,7 +935,6 @@ static void snd_wss_close(struct snd_wss *chip, unsigned int mode)
spin_unlock_irqrestore(&chip->reg_lock, flags);
chip->mode = 0;
- mutex_unlock(&chip->open_mutex);
}
/*
--
2.50.1
^ permalink raw reply related [flat|nested] 19+ messages in thread* [PATCH 17/18] ALSA: wss: Use guard() for spin locks
2025-08-29 14:52 [PATCH 00/18] ALSA: Use auto-cleanup macros for ISA drivers Takashi Iwai
` (15 preceding siblings ...)
2025-08-29 14:52 ` [PATCH 16/18] ALSA: wss: Use guard() for mutex locks Takashi Iwai
@ 2025-08-29 14:52 ` Takashi Iwai
2025-08-29 14:52 ` [PATCH 18/18] ALSA: wavefront: " Takashi Iwai
17 siblings, 0 replies; 19+ messages in thread
From: Takashi Iwai @ 2025-08-29 14:52 UTC (permalink / raw)
To: linux-sound
Clean up the code using guard() for spin locks.
Merely code refactoring, and no behavior change.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
sound/isa/wss/wss_lib.c | 264 ++++++++++++++++------------------------
1 file changed, 107 insertions(+), 157 deletions(-)
diff --git a/sound/isa/wss/wss_lib.c b/sound/isa/wss/wss_lib.c
index 0a2c040af5f0..6cf88625bbc3 100644
--- a/sound/isa/wss/wss_lib.c
+++ b/sound/isa/wss/wss_lib.c
@@ -360,7 +360,6 @@ static void snd_wss_busy_wait(struct snd_wss *chip)
void snd_wss_mce_up(struct snd_wss *chip)
{
- unsigned long flags;
int timeout;
snd_wss_wait(chip);
@@ -369,7 +368,7 @@ void snd_wss_mce_up(struct snd_wss *chip)
dev_dbg(chip->card->dev,
"mce_up - auto calibration time out (0)\n");
#endif
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
chip->mce_bit |= CS4231_MCE;
timeout = wss_inb(chip, CS4231P(REGSEL));
if (timeout == 0x80)
@@ -379,13 +378,11 @@ void snd_wss_mce_up(struct snd_wss *chip)
if (!(timeout & CS4231_MCE))
wss_outb(chip, CS4231P(REGSEL),
chip->mce_bit | (timeout & 0x1f));
- spin_unlock_irqrestore(&chip->reg_lock, flags);
}
EXPORT_SYMBOL(snd_wss_mce_up);
void snd_wss_mce_down(struct snd_wss *chip)
{
- unsigned long flags;
unsigned long end_time;
int timeout;
int hw_mask = WSS_HW_CS4231_MASK | WSS_HW_CS4232_MASK | WSS_HW_AD1848;
@@ -398,11 +395,11 @@ void snd_wss_mce_down(struct snd_wss *chip)
"mce_down [0x%lx] - auto calibration time out (0)\n",
(long)CS4231P(REGSEL));
#endif
- spin_lock_irqsave(&chip->reg_lock, flags);
- chip->mce_bit &= ~CS4231_MCE;
- timeout = wss_inb(chip, CS4231P(REGSEL));
- wss_outb(chip, CS4231P(REGSEL), chip->mce_bit | (timeout & 0x1f));
- spin_unlock_irqrestore(&chip->reg_lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->reg_lock) {
+ chip->mce_bit &= ~CS4231_MCE;
+ timeout = wss_inb(chip, CS4231P(REGSEL));
+ wss_outb(chip, CS4231P(REGSEL), chip->mce_bit | (timeout & 0x1f));
+ }
if (timeout == 0x80)
dev_dbg(chip->card->dev,
"mce_down [0x%lx]: serious init problem - codec still busy\n",
@@ -496,7 +493,7 @@ static int snd_wss_trigger(struct snd_pcm_substream *substream,
snd_pcm_trigger_done(s, substream);
}
}
- spin_lock(&chip->reg_lock);
+ guard(spinlock)(&chip->reg_lock);
if (do_start) {
chip->image[CS4231_IFACE_CTRL] |= what;
if (chip->trigger)
@@ -507,7 +504,6 @@ static int snd_wss_trigger(struct snd_pcm_substream *substream,
chip->trigger(chip, what, 0);
}
snd_wss_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]);
- spin_unlock(&chip->reg_lock);
#if 0
snd_wss_debug(chip);
#endif
@@ -553,14 +549,11 @@ static unsigned char snd_wss_get_format(struct snd_wss *chip,
static void snd_wss_calibrate_mute(struct snd_wss *chip, int mute)
{
- unsigned long flags;
mute = mute ? 0x80 : 0;
- spin_lock_irqsave(&chip->reg_lock, flags);
- if (chip->calibrate_mute == mute) {
- spin_unlock_irqrestore(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
+ if (chip->calibrate_mute == mute)
return;
- }
if (!mute) {
snd_wss_dout(chip, CS4231_LEFT_INPUT,
chip->image[CS4231_LEFT_INPUT]);
@@ -608,20 +601,18 @@ static void snd_wss_calibrate_mute(struct snd_wss *chip, int mute)
mute | chip->image[CS4231_LINE_RIGHT_OUTPUT]);
}
chip->calibrate_mute = mute;
- spin_unlock_irqrestore(&chip->reg_lock, flags);
}
static void snd_wss_playback_format(struct snd_wss *chip,
struct snd_pcm_hw_params *params,
unsigned char pdfr)
{
- unsigned long flags;
int full_calib = 1;
guard(mutex)(&chip->mce_mutex);
if (chip->hardware == WSS_HW_CS4231A ||
(chip->hardware & WSS_HW_CS4232_MASK)) {
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
if ((chip->image[CS4231_PLAYBK_FORMAT] & 0x0f) == (pdfr & 0x0f)) { /* rate is same? */
snd_wss_out(chip, CS4231_ALT_FEATURE_1,
chip->image[CS4231_ALT_FEATURE_1] | 0x10);
@@ -633,7 +624,6 @@ static void snd_wss_playback_format(struct snd_wss *chip,
udelay(100); /* Fixes audible clicks at least on GUS MAX */
full_calib = 0;
}
- spin_unlock_irqrestore(&chip->reg_lock, flags);
} else if (chip->hardware == WSS_HW_AD1845) {
unsigned rate = params_rate(params);
@@ -646,25 +636,24 @@ static void snd_wss_playback_format(struct snd_wss *chip,
* NOTE: We seem to need to write to the MSB before the LSB
* to get the correct sample frequency.
*/
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
snd_wss_out(chip, CS4231_PLAYBK_FORMAT, (pdfr & 0xf0));
snd_wss_out(chip, AD1845_UPR_FREQ_SEL, (rate >> 8) & 0xff);
snd_wss_out(chip, AD1845_LWR_FREQ_SEL, rate & 0xff);
full_calib = 0;
- spin_unlock_irqrestore(&chip->reg_lock, flags);
}
if (full_calib) {
snd_wss_mce_up(chip);
- spin_lock_irqsave(&chip->reg_lock, flags);
- if (chip->hardware != WSS_HW_INTERWAVE && !chip->single_dma) {
- if (chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE)
- pdfr = (pdfr & 0xf0) |
- (chip->image[CS4231_REC_FORMAT] & 0x0f);
- } else {
- chip->image[CS4231_PLAYBK_FORMAT] = pdfr;
+ scoped_guard(spinlock_irqsave, &chip->reg_lock) {
+ if (chip->hardware != WSS_HW_INTERWAVE && !chip->single_dma) {
+ if (chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE)
+ pdfr = (pdfr & 0xf0) |
+ (chip->image[CS4231_REC_FORMAT] & 0x0f);
+ } else {
+ chip->image[CS4231_PLAYBK_FORMAT] = pdfr;
+ }
+ snd_wss_out(chip, CS4231_PLAYBK_FORMAT, pdfr);
}
- snd_wss_out(chip, CS4231_PLAYBK_FORMAT, pdfr);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
if (chip->hardware == WSS_HW_OPL3SA2)
udelay(100); /* this seems to help */
snd_wss_mce_down(chip);
@@ -681,7 +670,7 @@ static void snd_wss_capture_format(struct snd_wss *chip,
guard(mutex)(&chip->mce_mutex);
if (chip->hardware == WSS_HW_CS4231A ||
(chip->hardware & WSS_HW_CS4232_MASK)) {
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
if ((chip->image[CS4231_PLAYBK_FORMAT] & 0x0f) == (cdfr & 0x0f) || /* rate is same? */
(chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE)) {
snd_wss_out(chip, CS4231_ALT_FEATURE_1,
@@ -692,7 +681,6 @@ static void snd_wss_capture_format(struct snd_wss *chip,
chip->image[CS4231_ALT_FEATURE_1] &= ~0x20);
full_calib = 0;
}
- spin_unlock_irqrestore(&chip->reg_lock, flags);
} else if (chip->hardware == WSS_HW_AD1845) {
unsigned rate = params_rate(params);
@@ -705,12 +693,11 @@ static void snd_wss_capture_format(struct snd_wss *chip,
* NOTE: We seem to need to write to the MSB before the LSB
* to get the correct sample frequency.
*/
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
snd_wss_out(chip, CS4231_REC_FORMAT, (cdfr & 0xf0));
snd_wss_out(chip, AD1845_UPR_FREQ_SEL, (rate >> 8) & 0xff);
snd_wss_out(chip, AD1845_LWR_FREQ_SEL, rate & 0xff);
full_calib = 0;
- spin_unlock_irqrestore(&chip->reg_lock, flags);
}
if (full_calib) {
snd_wss_mce_up(chip);
@@ -752,10 +739,10 @@ static unsigned long snd_wss_timer_resolution(struct snd_timer *timer)
static int snd_wss_timer_start(struct snd_timer *timer)
{
- unsigned long flags;
unsigned int ticks;
struct snd_wss *chip = snd_timer_chip(timer);
- spin_lock_irqsave(&chip->reg_lock, flags);
+
+ guard(spinlock_irqsave)(&chip->reg_lock);
ticks = timer->sticks;
if ((chip->image[CS4231_ALT_FEATURE_1] & CS4231_TIMER_ENABLE) == 0 ||
(unsigned char)(ticks >> 8) != chip->image[CS4231_TIMER_HIGH] ||
@@ -770,26 +757,22 @@ static int snd_wss_timer_start(struct snd_timer *timer)
chip->image[CS4231_ALT_FEATURE_1] |
CS4231_TIMER_ENABLE);
}
- spin_unlock_irqrestore(&chip->reg_lock, flags);
return 0;
}
static int snd_wss_timer_stop(struct snd_timer *timer)
{
- unsigned long flags;
struct snd_wss *chip = snd_timer_chip(timer);
- spin_lock_irqsave(&chip->reg_lock, flags);
+
+ guard(spinlock_irqsave)(&chip->reg_lock);
chip->image[CS4231_ALT_FEATURE_1] &= ~CS4231_TIMER_ENABLE;
snd_wss_out(chip, CS4231_ALT_FEATURE_1,
chip->image[CS4231_ALT_FEATURE_1]);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
return 0;
}
static void snd_wss_init(struct snd_wss *chip)
{
- unsigned long flags;
-
snd_wss_calibrate_mute(chip, 1);
snd_wss_mce_down(chip);
@@ -797,15 +780,15 @@ static void snd_wss_init(struct snd_wss *chip)
dev_dbg(chip->card->dev, "init: (1)\n");
#endif
snd_wss_mce_up(chip);
- spin_lock_irqsave(&chip->reg_lock, flags);
- chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE |
- CS4231_PLAYBACK_PIO |
- CS4231_RECORD_ENABLE |
- CS4231_RECORD_PIO |
- CS4231_CALIB_MODE);
- chip->image[CS4231_IFACE_CTRL] |= CS4231_AUTOCALIB;
- snd_wss_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->reg_lock) {
+ chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE |
+ CS4231_PLAYBACK_PIO |
+ CS4231_RECORD_ENABLE |
+ CS4231_RECORD_PIO |
+ CS4231_CALIB_MODE);
+ chip->image[CS4231_IFACE_CTRL] |= CS4231_AUTOCALIB;
+ snd_wss_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]);
+ }
snd_wss_mce_down(chip);
#ifdef SNDRV_DEBUG_MCE
@@ -813,12 +796,12 @@ static void snd_wss_init(struct snd_wss *chip)
#endif
snd_wss_mce_up(chip);
- spin_lock_irqsave(&chip->reg_lock, flags);
- chip->image[CS4231_IFACE_CTRL] &= ~CS4231_AUTOCALIB;
- snd_wss_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]);
- snd_wss_out(chip,
- CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1]);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->reg_lock) {
+ chip->image[CS4231_IFACE_CTRL] &= ~CS4231_AUTOCALIB;
+ snd_wss_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]);
+ snd_wss_out(chip,
+ CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1]);
+ }
snd_wss_mce_down(chip);
#ifdef SNDRV_DEBUG_MCE
@@ -826,16 +809,16 @@ static void snd_wss_init(struct snd_wss *chip)
chip->image[CS4231_ALT_FEATURE_1]);
#endif
- spin_lock_irqsave(&chip->reg_lock, flags);
- snd_wss_out(chip, CS4231_ALT_FEATURE_2,
- chip->image[CS4231_ALT_FEATURE_2]);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->reg_lock) {
+ snd_wss_out(chip, CS4231_ALT_FEATURE_2,
+ chip->image[CS4231_ALT_FEATURE_2]);
+ }
snd_wss_mce_up(chip);
- spin_lock_irqsave(&chip->reg_lock, flags);
- snd_wss_out(chip, CS4231_PLAYBK_FORMAT,
- chip->image[CS4231_PLAYBK_FORMAT]);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->reg_lock) {
+ snd_wss_out(chip, CS4231_PLAYBK_FORMAT,
+ chip->image[CS4231_PLAYBK_FORMAT]);
+ }
snd_wss_mce_down(chip);
#ifdef SNDRV_DEBUG_MCE
@@ -843,11 +826,11 @@ static void snd_wss_init(struct snd_wss *chip)
#endif
snd_wss_mce_up(chip);
- spin_lock_irqsave(&chip->reg_lock, flags);
- if (!(chip->hardware & WSS_HW_AD1848_MASK))
- snd_wss_out(chip, CS4231_REC_FORMAT,
- chip->image[CS4231_REC_FORMAT]);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->reg_lock) {
+ if (!(chip->hardware & WSS_HW_AD1848_MASK))
+ snd_wss_out(chip, CS4231_REC_FORMAT,
+ chip->image[CS4231_REC_FORMAT]);
+ }
snd_wss_mce_down(chip);
snd_wss_calibrate_mute(chip, 0);
@@ -858,8 +841,6 @@ static void snd_wss_init(struct snd_wss *chip)
static int snd_wss_open(struct snd_wss *chip, unsigned int mode)
{
- unsigned long flags;
-
guard(mutex)(&chip->open_mutex);
if ((chip->mode & mode) ||
((chip->mode & WSS_MODE_OPEN) && chip->single_dma))
@@ -869,7 +850,7 @@ static int snd_wss_open(struct snd_wss *chip, unsigned int mode)
return 0;
}
/* ok. now enable and ack CODEC IRQ */
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
if (!(chip->hardware & WSS_HW_AD1848_MASK)) {
snd_wss_out(chip, CS4231_IRQ_STATUS,
CS4231_PLAYBACK_IRQ |
@@ -888,7 +869,6 @@ static int snd_wss_open(struct snd_wss *chip, unsigned int mode)
CS4231_TIMER_IRQ);
snd_wss_out(chip, CS4231_IRQ_STATUS, 0);
}
- spin_unlock_irqrestore(&chip->reg_lock, flags);
chip->mode = mode;
return 0;
@@ -988,18 +968,16 @@ static int snd_wss_playback_prepare(struct snd_pcm_substream *substream)
{
struct snd_wss *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
- unsigned long flags;
unsigned int size = snd_pcm_lib_buffer_bytes(substream);
unsigned int count = snd_pcm_lib_period_bytes(substream);
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
chip->p_dma_size = size;
chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO);
snd_dma_program(chip->dma1, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
count = snd_wss_get_count(chip->image[CS4231_PLAYBK_FORMAT], count) - 1;
snd_wss_out(chip, CS4231_PLY_LWR_CNT, (unsigned char) count);
snd_wss_out(chip, CS4231_PLY_UPR_CNT, (unsigned char) (count >> 8));
- spin_unlock_irqrestore(&chip->reg_lock, flags);
#if 0
snd_wss_debug(chip);
#endif
@@ -1023,11 +1001,10 @@ static int snd_wss_capture_prepare(struct snd_pcm_substream *substream)
{
struct snd_wss *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
- unsigned long flags;
unsigned int size = snd_pcm_lib_buffer_bytes(substream);
unsigned int count = snd_pcm_lib_period_bytes(substream);
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
chip->c_dma_size = size;
chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_RECORD_ENABLE | CS4231_RECORD_PIO);
snd_dma_program(chip->dma2, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
@@ -1047,18 +1024,16 @@ static int snd_wss_capture_prepare(struct snd_pcm_substream *substream)
snd_wss_out(chip, CS4231_REC_UPR_CNT,
(unsigned char) (count >> 8));
}
- spin_unlock_irqrestore(&chip->reg_lock, flags);
return 0;
}
void snd_wss_overrange(struct snd_wss *chip)
{
- unsigned long flags;
unsigned char res;
- spin_lock_irqsave(&chip->reg_lock, flags);
- res = snd_wss_in(chip, CS4231_TEST_INIT);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->reg_lock) {
+ res = snd_wss_in(chip, CS4231_TEST_INIT);
+ }
if (res & (0x08 | 0x02)) /* detect overrange only above 0dB; may be user selectable? */
chip->capture_substream->runtime->overrange++;
}
@@ -1104,13 +1079,12 @@ irqreturn_t snd_wss_interrupt(int irq, void *dev_id)
}
}
- spin_lock(&chip->reg_lock);
+ guard(spinlock)(&chip->reg_lock);
status = ~CS4231_ALL_IRQS | ~status;
if (chip->hardware & WSS_HW_AD1848_MASK)
wss_outb(chip, CS4231P(STATUS), 0);
else
snd_wss_out(chip, CS4231_IRQ_STATUS, status);
- spin_unlock(&chip->reg_lock);
return IRQ_HANDLED;
}
EXPORT_SYMBOL(snd_wss_interrupt);
@@ -1144,10 +1118,8 @@ static snd_pcm_uframes_t snd_wss_capture_pointer(struct snd_pcm_substream *subst
static int snd_ad1848_probe(struct snd_wss *chip)
{
unsigned long timeout = jiffies + msecs_to_jiffies(1000);
- unsigned long flags;
unsigned char r;
unsigned short hardware = 0;
- int err = 0;
int i;
while (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT) {
@@ -1155,7 +1127,7 @@ static int snd_ad1848_probe(struct snd_wss *chip)
return -ENODEV;
cond_resched();
}
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
/* set CS423x MODE 1 */
snd_wss_dout(chip, CS4231_MISC_INFO, 0);
@@ -1164,19 +1136,15 @@ static int snd_ad1848_probe(struct snd_wss *chip)
r = snd_wss_in(chip, CS4231_RIGHT_INPUT);
if (r != 0x45) {
/* RMGE always high on AD1847 */
- if ((r & ~CS4231_ENABLE_MIC_GAIN) != 0x45) {
- err = -ENODEV;
- goto out;
- }
+ if ((r & ~CS4231_ENABLE_MIC_GAIN) != 0x45)
+ return -ENODEV;
hardware = WSS_HW_AD1847;
} else {
snd_wss_dout(chip, CS4231_LEFT_INPUT, 0xaa);
r = snd_wss_in(chip, CS4231_LEFT_INPUT);
/* L/RMGE always low on AT2320 */
- if ((r | CS4231_ENABLE_MIC_GAIN) != 0xaa) {
- err = -ENODEV;
- goto out;
- }
+ if ((r | CS4231_ENABLE_MIC_GAIN) != 0xaa)
+ return -ENODEV;
}
/* clear pending IRQ */
@@ -1185,11 +1153,11 @@ static int snd_ad1848_probe(struct snd_wss *chip)
mb();
if ((chip->hardware & WSS_HW_TYPE_MASK) != WSS_HW_DETECT)
- goto out;
+ return 0;
if (hardware) {
chip->hardware = hardware;
- goto out;
+ return 0;
}
r = snd_wss_in(chip, CS4231_MISC_INFO);
@@ -1218,14 +1186,11 @@ static int snd_ad1848_probe(struct snd_wss *chip)
chip->hardware = WSS_HW_AD1848;
out_mode:
snd_wss_dout(chip, CS4231_MISC_INFO, 0);
-out:
- spin_unlock_irqrestore(&chip->reg_lock, flags);
- return err;
+ return 0;
}
static int snd_wss_probe(struct snd_wss *chip)
{
- unsigned long flags;
int i, id, rev, regnum;
unsigned char *ptr;
unsigned int hw;
@@ -1241,11 +1206,10 @@ static int snd_wss_probe(struct snd_wss *chip)
if (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT)
msleep(2);
else {
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
snd_wss_out(chip, CS4231_MISC_INFO,
CS4231_MODE2);
id = snd_wss_in(chip, CS4231_MISC_INFO) & 0x0f;
- spin_unlock_irqrestore(&chip->reg_lock, flags);
if (id == 0x0a)
break; /* this is valid value */
}
@@ -1280,11 +1244,11 @@ static int snd_wss_probe(struct snd_wss *chip)
return -ENODEV; /* unknown CS4231 chip? */
}
}
- spin_lock_irqsave(&chip->reg_lock, flags);
- wss_inb(chip, CS4231P(STATUS)); /* clear any pendings IRQ */
- wss_outb(chip, CS4231P(STATUS), 0);
- mb();
- spin_unlock_irqrestore(&chip->reg_lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->reg_lock) {
+ wss_inb(chip, CS4231P(STATUS)); /* clear any pendings IRQ */
+ wss_outb(chip, CS4231P(STATUS), 0);
+ mb();
+ }
if (!(chip->hardware & WSS_HW_AD1848_MASK))
chip->image[CS4231_MISC_INFO] = CS4231_MODE2;
@@ -1319,10 +1283,10 @@ static int snd_wss_probe(struct snd_wss *chip)
ptr = (unsigned char *) &chip->image;
regnum = (chip->hardware & WSS_HW_AD1848_MASK) ? 16 : 32;
snd_wss_mce_down(chip);
- spin_lock_irqsave(&chip->reg_lock, flags);
- for (i = 0; i < regnum; i++) /* ok.. fill all registers */
- snd_wss_out(chip, i, *ptr++);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->reg_lock) {
+ for (i = 0; i < regnum; i++) /* ok.. fill all registers */
+ snd_wss_out(chip, i, *ptr++);
+ }
snd_wss_mce_up(chip);
snd_wss_mce_down(chip);
@@ -1587,12 +1551,11 @@ static void snd_wss_thinkpad_twiddle(struct snd_wss *chip, int on)
static void snd_wss_suspend(struct snd_wss *chip)
{
int reg;
- unsigned long flags;
- spin_lock_irqsave(&chip->reg_lock, flags);
- for (reg = 0; reg < 32; reg++)
- chip->image[reg] = snd_wss_in(chip, reg);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->reg_lock) {
+ for (reg = 0; reg < 32; reg++)
+ chip->image[reg] = snd_wss_in(chip, reg);
+ }
if (chip->thinkpad_flag)
snd_wss_thinkpad_twiddle(chip, 0);
}
@@ -1601,27 +1564,26 @@ static void snd_wss_suspend(struct snd_wss *chip)
static void snd_wss_resume(struct snd_wss *chip)
{
int reg;
- unsigned long flags;
/* int timeout; */
if (chip->thinkpad_flag)
snd_wss_thinkpad_twiddle(chip, 1);
snd_wss_mce_up(chip);
- spin_lock_irqsave(&chip->reg_lock, flags);
- for (reg = 0; reg < 32; reg++) {
- switch (reg) {
- case CS4231_VERSION:
- break;
- default:
- snd_wss_out(chip, reg, chip->image[reg]);
- break;
+ scoped_guard(spinlock_irqsave, &chip->reg_lock) {
+ for (reg = 0; reg < 32; reg++) {
+ switch (reg) {
+ case CS4231_VERSION:
+ break;
+ default:
+ snd_wss_out(chip, reg, chip->image[reg]);
+ break;
+ }
}
+ /* Yamaha needs this to resume properly */
+ if (chip->hardware == WSS_HW_OPL3SA2)
+ snd_wss_out(chip, CS4231_PLAYBK_FORMAT,
+ chip->image[CS4231_PLAYBK_FORMAT]);
}
- /* Yamaha needs this to resume properly */
- if (chip->hardware == WSS_HW_OPL3SA2)
- snd_wss_out(chip, CS4231_PLAYBK_FORMAT,
- chip->image[CS4231_PLAYBK_FORMAT]);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
#if 1
snd_wss_mce_down(chip);
#else
@@ -1630,11 +1592,11 @@ static void snd_wss_resume(struct snd_wss *chip)
include rescheduling. -- iwai
*/
snd_wss_busy_wait(chip);
- spin_lock_irqsave(&chip->reg_lock, flags);
- chip->mce_bit &= ~CS4231_MCE;
- timeout = wss_inb(chip, CS4231P(REGSEL));
- wss_outb(chip, CS4231P(REGSEL), chip->mce_bit | (timeout & 0x1f));
- spin_unlock_irqrestore(&chip->reg_lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->reg_lock) {
+ chip->mce_bit &= ~CS4231_MCE;
+ timeout = wss_inb(chip, CS4231P(REGSEL));
+ wss_outb(chip, CS4231P(REGSEL), chip->mce_bit | (timeout & 0x1f));
+ }
if (timeout == 0x80)
dev_err(chip->card->dev
"down [0x%lx]: serious init problem - codec still busy\n",
@@ -1935,12 +1897,10 @@ static int snd_wss_get_mux(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
ucontrol->value.enumerated.item[0] = (chip->image[CS4231_LEFT_INPUT] & CS4231_MIXS_ALL) >> 6;
ucontrol->value.enumerated.item[1] = (chip->image[CS4231_RIGHT_INPUT] & CS4231_MIXS_ALL) >> 6;
- spin_unlock_irqrestore(&chip->reg_lock, flags);
return 0;
}
@@ -1948,7 +1908,6 @@ static int snd_wss_put_mux(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
unsigned short left, right;
int change;
@@ -1957,14 +1916,13 @@ static int snd_wss_put_mux(struct snd_kcontrol *kcontrol,
return -EINVAL;
left = ucontrol->value.enumerated.item[0] << 6;
right = ucontrol->value.enumerated.item[1] << 6;
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
left = (chip->image[CS4231_LEFT_INPUT] & ~CS4231_MIXS_ALL) | left;
right = (chip->image[CS4231_RIGHT_INPUT] & ~CS4231_MIXS_ALL) | right;
change = left != chip->image[CS4231_LEFT_INPUT] ||
right != chip->image[CS4231_RIGHT_INPUT];
snd_wss_out(chip, CS4231_LEFT_INPUT, left);
snd_wss_out(chip, CS4231_RIGHT_INPUT, right);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
return change;
}
@@ -1985,15 +1943,13 @@ int snd_wss_get_single(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int reg = kcontrol->private_value & 0xff;
int shift = (kcontrol->private_value >> 8) & 0xff;
int mask = (kcontrol->private_value >> 16) & 0xff;
int invert = (kcontrol->private_value >> 24) & 0xff;
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
ucontrol->value.integer.value[0] = (chip->image[reg] >> shift) & mask;
- spin_unlock_irqrestore(&chip->reg_lock, flags);
if (invert)
ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
return 0;
@@ -2004,7 +1960,6 @@ int snd_wss_put_single(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int reg = kcontrol->private_value & 0xff;
int shift = (kcontrol->private_value >> 8) & 0xff;
int mask = (kcontrol->private_value >> 16) & 0xff;
@@ -2016,11 +1971,10 @@ int snd_wss_put_single(struct snd_kcontrol *kcontrol,
if (invert)
val = mask - val;
val <<= shift;
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
val = (chip->image[reg] & ~(mask << shift)) | val;
change = val != chip->image[reg];
snd_wss_out(chip, reg, val);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
return change;
}
EXPORT_SYMBOL(snd_wss_put_single);
@@ -2042,7 +1996,6 @@ int snd_wss_get_double(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int left_reg = kcontrol->private_value & 0xff;
int right_reg = (kcontrol->private_value >> 8) & 0xff;
int shift_left = (kcontrol->private_value >> 16) & 0x07;
@@ -2050,10 +2003,9 @@ int snd_wss_get_double(struct snd_kcontrol *kcontrol,
int mask = (kcontrol->private_value >> 24) & 0xff;
int invert = (kcontrol->private_value >> 22) & 1;
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
ucontrol->value.integer.value[0] = (chip->image[left_reg] >> shift_left) & mask;
ucontrol->value.integer.value[1] = (chip->image[right_reg] >> shift_right) & mask;
- spin_unlock_irqrestore(&chip->reg_lock, flags);
if (invert) {
ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
@@ -2066,7 +2018,6 @@ int snd_wss_put_double(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
int left_reg = kcontrol->private_value & 0xff;
int right_reg = (kcontrol->private_value >> 8) & 0xff;
int shift_left = (kcontrol->private_value >> 16) & 0x07;
@@ -2084,7 +2035,7 @@ int snd_wss_put_double(struct snd_kcontrol *kcontrol,
}
val1 <<= shift_left;
val2 <<= shift_right;
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
if (left_reg != right_reg) {
val1 = (chip->image[left_reg] & ~(mask << shift_left)) | val1;
val2 = (chip->image[right_reg] & ~(mask << shift_right)) | val2;
@@ -2098,7 +2049,6 @@ int snd_wss_put_double(struct snd_kcontrol *kcontrol,
change = val1 != chip->image[left_reg];
snd_wss_out(chip, left_reg, val1);
}
- spin_unlock_irqrestore(&chip->reg_lock, flags);
return change;
}
EXPORT_SYMBOL(snd_wss_put_double);
--
2.50.1
^ permalink raw reply related [flat|nested] 19+ messages in thread* [PATCH 18/18] ALSA: wavefront: Use guard() for spin locks
2025-08-29 14:52 [PATCH 00/18] ALSA: Use auto-cleanup macros for ISA drivers Takashi Iwai
` (16 preceding siblings ...)
2025-08-29 14:52 ` [PATCH 17/18] ALSA: wss: Use guard() for spin locks Takashi Iwai
@ 2025-08-29 14:52 ` Takashi Iwai
17 siblings, 0 replies; 19+ messages in thread
From: Takashi Iwai @ 2025-08-29 14:52 UTC (permalink / raw)
To: linux-sound
Clean up the code using guard() for spin locks.
Merely code refactoring, and no behavior change.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
sound/isa/wavefront/wavefront_midi.c | 129 ++++++++++----------------
sound/isa/wavefront/wavefront_synth.c | 18 ++--
2 files changed, 60 insertions(+), 87 deletions(-)
diff --git a/sound/isa/wavefront/wavefront_midi.c b/sound/isa/wavefront/wavefront_midi.c
index 494b21be665c..1250ecba659a 100644
--- a/sound/isa/wavefront/wavefront_midi.c
+++ b/sound/isa/wavefront/wavefront_midi.c
@@ -113,7 +113,6 @@ static void snd_wavefront_midi_output_write(snd_wavefront_card_t *card)
{
snd_wavefront_midi_t *midi = &card->wavefront.midi;
snd_wavefront_mpu_id mpu;
- unsigned long flags;
unsigned char midi_byte;
int max = 256, mask = 1;
int timeout;
@@ -142,11 +141,9 @@ static void snd_wavefront_midi_output_write(snd_wavefront_card_t *card)
break;
}
- spin_lock_irqsave (&midi->virtual, flags);
- if ((midi->mode[midi->output_mpu] & MPU401_MODE_OUTPUT) == 0) {
- spin_unlock_irqrestore (&midi->virtual, flags);
+ guard(spinlock_irqsave)(&midi->virtual);
+ if ((midi->mode[midi->output_mpu] & MPU401_MODE_OUTPUT) == 0)
goto __second;
- }
if (output_ready (midi)) {
if (snd_rawmidi_transmit(midi->substream_output[midi->output_mpu], &midi_byte, 1) == 1) {
if (!midi->isvirtual ||
@@ -160,14 +157,11 @@ static void snd_wavefront_midi_output_write(snd_wavefront_card_t *card)
timer_delete(&midi->timer);
}
midi->mode[midi->output_mpu] &= ~MPU401_MODE_OUTPUT_TRIGGER;
- spin_unlock_irqrestore (&midi->virtual, flags);
goto __second;
}
} else {
- spin_unlock_irqrestore (&midi->virtual, flags);
return;
}
- spin_unlock_irqrestore (&midi->virtual, flags);
}
__second:
@@ -185,15 +179,13 @@ static void snd_wavefront_midi_output_write(snd_wavefront_card_t *card)
break;
}
- spin_lock_irqsave (&midi->virtual, flags);
+ guard(spinlock_irqsave)(&midi->virtual);
if (!midi->isvirtual)
mask = 0;
mpu = midi->output_mpu ^ mask;
mask = 0; /* don't invert the value from now */
- if ((midi->mode[mpu] & MPU401_MODE_OUTPUT) == 0) {
- spin_unlock_irqrestore (&midi->virtual, flags);
+ if ((midi->mode[mpu] & MPU401_MODE_OUTPUT) == 0)
return;
- }
if (snd_rawmidi_transmit_empty(midi->substream_output[mpu]))
goto __timer;
if (output_ready (midi)) {
@@ -215,20 +207,16 @@ static void snd_wavefront_midi_output_write(snd_wavefront_card_t *card)
timer_delete(&midi->timer);
}
midi->mode[mpu] &= ~MPU401_MODE_OUTPUT_TRIGGER;
- spin_unlock_irqrestore (&midi->virtual, flags);
return;
}
} else {
- spin_unlock_irqrestore (&midi->virtual, flags);
return;
}
- spin_unlock_irqrestore (&midi->virtual, flags);
}
}
static int snd_wavefront_midi_input_open(struct snd_rawmidi_substream *substream)
{
- unsigned long flags;
snd_wavefront_midi_t *midi;
snd_wavefront_mpu_id mpu;
@@ -243,17 +231,15 @@ static int snd_wavefront_midi_input_open(struct snd_rawmidi_substream *substream
if (!midi)
return -EIO;
- spin_lock_irqsave (&midi->open, flags);
+ guard(spinlock_irqsave)(&midi->open);
midi->mode[mpu] |= MPU401_MODE_INPUT;
midi->substream_input[mpu] = substream;
- spin_unlock_irqrestore (&midi->open, flags);
return 0;
}
static int snd_wavefront_midi_output_open(struct snd_rawmidi_substream *substream)
{
- unsigned long flags;
snd_wavefront_midi_t *midi;
snd_wavefront_mpu_id mpu;
@@ -268,17 +254,15 @@ static int snd_wavefront_midi_output_open(struct snd_rawmidi_substream *substrea
if (!midi)
return -EIO;
- spin_lock_irqsave (&midi->open, flags);
+ guard(spinlock_irqsave)(&midi->open);
midi->mode[mpu] |= MPU401_MODE_OUTPUT;
midi->substream_output[mpu] = substream;
- spin_unlock_irqrestore (&midi->open, flags);
return 0;
}
static int snd_wavefront_midi_input_close(struct snd_rawmidi_substream *substream)
{
- unsigned long flags;
snd_wavefront_midi_t *midi;
snd_wavefront_mpu_id mpu;
@@ -293,16 +277,14 @@ static int snd_wavefront_midi_input_close(struct snd_rawmidi_substream *substrea
if (!midi)
return -EIO;
- spin_lock_irqsave (&midi->open, flags);
+ guard(spinlock_irqsave)(&midi->open);
midi->mode[mpu] &= ~MPU401_MODE_INPUT;
- spin_unlock_irqrestore (&midi->open, flags);
return 0;
}
static int snd_wavefront_midi_output_close(struct snd_rawmidi_substream *substream)
{
- unsigned long flags;
snd_wavefront_midi_t *midi;
snd_wavefront_mpu_id mpu;
@@ -317,15 +299,13 @@ static int snd_wavefront_midi_output_close(struct snd_rawmidi_substream *substre
if (!midi)
return -EIO;
- spin_lock_irqsave (&midi->open, flags);
+ guard(spinlock_irqsave)(&midi->open);
midi->mode[mpu] &= ~MPU401_MODE_OUTPUT;
- spin_unlock_irqrestore (&midi->open, flags);
return 0;
}
static void snd_wavefront_midi_input_trigger(struct snd_rawmidi_substream *substream, int up)
{
- unsigned long flags;
snd_wavefront_midi_t *midi;
snd_wavefront_mpu_id mpu;
@@ -341,30 +321,27 @@ static void snd_wavefront_midi_input_trigger(struct snd_rawmidi_substream *subst
if (!midi)
return;
- spin_lock_irqsave (&midi->virtual, flags);
+ guard(spinlock_irqsave)(&midi->virtual);
if (up) {
midi->mode[mpu] |= MPU401_MODE_INPUT_TRIGGER;
} else {
midi->mode[mpu] &= ~MPU401_MODE_INPUT_TRIGGER;
}
- spin_unlock_irqrestore (&midi->virtual, flags);
}
static void snd_wavefront_midi_output_timer(struct timer_list *t)
{
snd_wavefront_midi_t *midi = timer_container_of(midi, t, timer);
snd_wavefront_card_t *card = midi->timer_card;
- unsigned long flags;
- spin_lock_irqsave (&midi->virtual, flags);
- mod_timer(&midi->timer, 1 + jiffies);
- spin_unlock_irqrestore (&midi->virtual, flags);
+ scoped_guard(spinlock_irqsave, &midi->virtual) {
+ mod_timer(&midi->timer, 1 + jiffies);
+ }
snd_wavefront_midi_output_write(card);
}
static void snd_wavefront_midi_output_trigger(struct snd_rawmidi_substream *substream, int up)
{
- unsigned long flags;
snd_wavefront_midi_t *midi;
snd_wavefront_mpu_id mpu;
@@ -380,22 +357,22 @@ static void snd_wavefront_midi_output_trigger(struct snd_rawmidi_substream *subs
if (!midi)
return;
- spin_lock_irqsave (&midi->virtual, flags);
- if (up) {
- if ((midi->mode[mpu] & MPU401_MODE_OUTPUT_TRIGGER) == 0) {
- if (!midi->istimer) {
- timer_setup(&midi->timer,
- snd_wavefront_midi_output_timer,
- 0);
- mod_timer(&midi->timer, 1 + jiffies);
+ scoped_guard(spinlock_irqsave, &midi->virtual) {
+ if (up) {
+ if ((midi->mode[mpu] & MPU401_MODE_OUTPUT_TRIGGER) == 0) {
+ if (!midi->istimer) {
+ timer_setup(&midi->timer,
+ snd_wavefront_midi_output_timer,
+ 0);
+ mod_timer(&midi->timer, 1 + jiffies);
+ }
+ midi->istimer++;
+ midi->mode[mpu] |= MPU401_MODE_OUTPUT_TRIGGER;
}
- midi->istimer++;
- midi->mode[mpu] |= MPU401_MODE_OUTPUT_TRIGGER;
+ } else {
+ midi->mode[mpu] &= ~MPU401_MODE_OUTPUT_TRIGGER;
}
- } else {
- midi->mode[mpu] &= ~MPU401_MODE_OUTPUT_TRIGGER;
}
- spin_unlock_irqrestore (&midi->virtual, flags);
if (up)
snd_wavefront_midi_output_write((snd_wavefront_card_t *)substream->rmidi->card->private_data);
@@ -405,7 +382,6 @@ void
snd_wavefront_midi_interrupt (snd_wavefront_card_t *card)
{
- unsigned long flags;
snd_wavefront_midi_t *midi;
static struct snd_rawmidi_substream *substream = NULL;
static int mpu = external_mpu;
@@ -419,37 +395,37 @@ snd_wavefront_midi_interrupt (snd_wavefront_card_t *card)
return;
}
- spin_lock_irqsave (&midi->virtual, flags);
- while (--max) {
+ scoped_guard(spinlock_irqsave, &midi->virtual) {
+ while (--max) {
- if (input_avail (midi)) {
- byte = read_data (midi);
+ if (input_avail(midi)) {
+ byte = read_data(midi);
- if (midi->isvirtual) {
- if (byte == WF_EXTERNAL_SWITCH) {
- substream = midi->substream_input[external_mpu];
- mpu = external_mpu;
- } else if (byte == WF_INTERNAL_SWITCH) {
- substream = midi->substream_output[internal_mpu];
+ if (midi->isvirtual) {
+ if (byte == WF_EXTERNAL_SWITCH) {
+ substream = midi->substream_input[external_mpu];
+ mpu = external_mpu;
+ } else if (byte == WF_INTERNAL_SWITCH) {
+ substream = midi->substream_output[internal_mpu];
+ mpu = internal_mpu;
+ } /* else just leave it as it is */
+ } else {
+ substream = midi->substream_input[internal_mpu];
mpu = internal_mpu;
- } /* else just leave it as it is */
+ }
+
+ if (substream == NULL) {
+ continue;
+ }
+
+ if (midi->mode[mpu] & MPU401_MODE_INPUT_TRIGGER) {
+ snd_rawmidi_receive(substream, &byte, 1);
+ }
} else {
- substream = midi->substream_input[internal_mpu];
- mpu = internal_mpu;
+ break;
}
-
- if (substream == NULL) {
- continue;
- }
-
- if (midi->mode[mpu] & MPU401_MODE_INPUT_TRIGGER) {
- snd_rawmidi_receive(substream, &byte, 1);
- }
- } else {
- break;
}
- }
- spin_unlock_irqrestore (&midi->virtual, flags);
+ }
snd_wavefront_midi_output_write(card);
}
@@ -471,13 +447,10 @@ void
snd_wavefront_midi_disable_virtual (snd_wavefront_card_t *card)
{
- unsigned long flags;
-
- spin_lock_irqsave (&card->wavefront.midi.virtual, flags);
+ guard(spinlock_irqsave)(&card->wavefront.midi.virtual);
// snd_wavefront_midi_input_close (card->ics2115_external_rmidi);
// snd_wavefront_midi_output_close (card->ics2115_external_rmidi);
card->wavefront.midi.isvirtual = 0;
- spin_unlock_irqrestore (&card->wavefront.midi.virtual, flags);
}
int
diff --git a/sound/isa/wavefront/wavefront_synth.c b/sound/isa/wavefront/wavefront_synth.c
index bd679e2da154..cd5c177943aa 100644
--- a/sound/isa/wavefront/wavefront_synth.c
+++ b/sound/isa/wavefront/wavefront_synth.c
@@ -1741,10 +1741,10 @@ snd_wavefront_internal_interrupt (snd_wavefront_card_t *card)
return;
}
- spin_lock(&dev->irq_lock);
- dev->irq_ok = 1;
- dev->irq_cnt++;
- spin_unlock(&dev->irq_lock);
+ scoped_guard(spinlock, &dev->irq_lock) {
+ dev->irq_ok = 1;
+ dev->irq_cnt++;
+ }
wake_up(&dev->interrupt_sleeper);
}
@@ -1796,11 +1796,11 @@ wavefront_should_cause_interrupt (snd_wavefront_t *dev,
wait_queue_entry_t wait;
init_waitqueue_entry(&wait, current);
- spin_lock_irq(&dev->irq_lock);
- add_wait_queue(&dev->interrupt_sleeper, &wait);
- dev->irq_ok = 0;
- outb (val,port);
- spin_unlock_irq(&dev->irq_lock);
+ scoped_guard(spinlock_irq, &dev->irq_lock) {
+ add_wait_queue(&dev->interrupt_sleeper, &wait);
+ dev->irq_ok = 0;
+ outb(val, port);
+ }
while (!dev->irq_ok && time_before(jiffies, timeout)) {
schedule_timeout_uninterruptible(1);
barrier();
--
2.50.1
^ permalink raw reply related [flat|nested] 19+ messages in thread