[PATCH 1/3] bttv: Convert to generic TEA575x interface

[PATCH 1/3] bttv: Convert to generic TEA575x interface

[Ondrej Zary]

Remove tea575x-specific code from bttv and use the common driver instead.

Only set_frequency is implemented (signal/stereo detection or seek would
require more changes to bttv).

It works fine on Video Highway Xtreme (it actually makes the radio usable as
it currently cannot be tuned properly).

Miro/Pinnacle is untested but seems to be simple and should work.

However, I don't understand the Terratec Active Radio Upgrade code. The HW
seems to need IOR, IOW and CSEL signals that were taken from ISA bus on
older cards (IOR and IOW directly and CSEL from some address decoder) and
are emulated here using GPIOs. But the code manipulating these signals in
bttv seems to be broken - it never asserts the IOR signal. If anyone has
this HW, please test if I got that right.

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
---
 drivers/media/pci/bt8xx/Kconfig       |    3 +
 drivers/media/pci/bt8xx/bttv-cards.c  |  317 ++++++++++++---------------------
 drivers/media/pci/bt8xx/bttv-driver.c |    6 +-
 drivers/media/pci/bt8xx/bttvp.h       |   14 +-
 4 files changed, 125 insertions(+), 215 deletions(-)

diff --git a/drivers/media/pci/bt8xx/Kconfig b/drivers/media/pci/bt8xx/Kconfig
index 496cf6b..4a93f6d 100644
--- a/drivers/media/pci/bt8xx/Kconfig
+++ b/drivers/media/pci/bt8xx/Kconfig
@@ -4,12 +4,15 @@ config VIDEO_BT848
 	select I2C_ALGOBIT
 	select VIDEOBUF_DMA_SG
 	depends on RC_CORE
+	depends on MEDIA_RADIO_SUPPORT
 	select VIDEO_TUNER
 	select VIDEO_TVEEPROM
 	select VIDEO_MSP3400 if MEDIA_SUBDRV_AUTOSELECT
 	select VIDEO_TVAUDIO if MEDIA_SUBDRV_AUTOSELECT
 	select VIDEO_TDA7432 if MEDIA_SUBDRV_AUTOSELECT
 	select VIDEO_SAA6588 if MEDIA_SUBDRV_AUTOSELECT
+	select RADIO_ADAPTERS
+	select RADIO_TEA575X
 	---help---
 	  Support for BT848 based frame grabber/overlay boards. This includes
 	  the Miro, Hauppauge and STB boards. Please read the material in
diff --git a/drivers/media/pci/bt8xx/bttv-cards.c b/drivers/media/pci/bt8xx/bttv-cards.c
index c518677..4654fb6 100644
--- a/drivers/media/pci/bt8xx/bttv-cards.c
+++ b/drivers/media/pci/bt8xx/bttv-cards.c
@@ -84,8 +84,7 @@ static void gv800s_init(struct bttv *btv);
 static void td3116_muxsel(struct bttv *btv, unsigned int input);
 
 static int terratec_active_radio_upgrade(struct bttv *btv);
-static int tea5757_read(struct bttv *btv);
-static int tea5757_write(struct bttv *btv, int value);
+static int tea575x_init(struct bttv *btv);
 static void identify_by_eeprom(struct bttv *btv,
 			       unsigned char eeprom_data[256]);
 static int pvr_boot(struct bttv *btv);
@@ -3085,12 +3084,12 @@ static void miro_pinnacle_gpio(struct bttv *btv)
 		if (0 == (gpio & 0x20)) {
 			btv->has_radio = 1;
 			if (!miro_fmtuner[id]) {
-				btv->has_matchbox = 1;
-				btv->mbox_we    = (1<<6);
-				btv->mbox_most  = (1<<7);
-				btv->mbox_clk   = (1<<8);
-				btv->mbox_data  = (1<<9);
-				btv->mbox_mask  = (1<<6)|(1<<7)|(1<<8)|(1<<9);
+				btv->has_tea575x = 1;
+				btv->tea_gpio.wren = 6;
+				btv->tea_gpio.most = 7;
+				btv->tea_gpio.clk  = 8;
+				btv->tea_gpio.data = 9;
+				tea575x_init(btv);
 			}
 		} else {
 			btv->has_radio = 0;
@@ -3104,7 +3103,7 @@ static void miro_pinnacle_gpio(struct bttv *btv)
 		pr_info("%d: miro: id=%d tuner=%d radio=%s stereo=%s\n",
 			btv->c.nr, id+1, btv->tuner_type,
 			!btv->has_radio ? "no" :
-			(btv->has_matchbox ? "matchbox" : "fmtuner"),
+			(btv->has_tea575x ? "tea575x" : "fmtuner"),
 			(-1 == msp) ? "no" : "yes");
 	} else {
 		/* new cards with microtune tuner */
@@ -3382,12 +3381,12 @@ void bttv_init_card2(struct bttv *btv)
 		break;
 	case BTTV_BOARD_VHX:
 		btv->has_radio    = 1;
-		btv->has_matchbox = 1;
-		btv->mbox_we      = 0x20;
-		btv->mbox_most    = 0;
-		btv->mbox_clk     = 0x08;
-		btv->mbox_data    = 0x10;
-		btv->mbox_mask    = 0x38;
+		btv->has_tea575x  = 1;
+		btv->tea_gpio.wren = 5;
+		btv->tea_gpio.most = 6;
+		btv->tea_gpio.clk  = 3;
+		btv->tea_gpio.data = 4;
+		tea575x_init(btv);
 		break;
 	case BTTV_BOARD_VOBIS_BOOSTAR:
 	case BTTV_BOARD_TERRATV:
@@ -3745,33 +3744,112 @@ static void hauppauge_eeprom(struct bttv *btv)
 		btv->radio_uses_msp_demodulator = 1;
 }
 
-static int terratec_active_radio_upgrade(struct bttv *btv)
+/* ----------------------------------------------------------------------- */
+
+static void bttv_tea575x_set_pins(struct snd_tea575x *tea, u8 pins)
+{
+	struct bttv *btv = tea->private_data;
+	struct bttv_tea575x_gpio gpio = btv->tea_gpio;
+	u16 val = 0;
+
+	val |= (pins & TEA575X_DATA) ? (1 << gpio.data) : 0;
+	val |= (pins & TEA575X_CLK)  ? (1 << gpio.clk)  : 0;
+	val |= (pins & TEA575X_WREN) ? (1 << gpio.wren) : 0;
+
+	gpio_bits((1 << gpio.data) | (1 << gpio.clk) | (1 << gpio.wren), val);
+	if (btv->mbox_ior) {
+		/* IOW and CSEL active */
+		gpio_bits(btv->mbox_iow | btv->mbox_csel, 0);
+		udelay(5);
+		/* all inactive */
+		gpio_bits(btv->mbox_ior | btv->mbox_iow | btv->mbox_csel,
+			  btv->mbox_ior | btv->mbox_iow | btv->mbox_csel);
+	}
+}
+
+static u8 bttv_tea575x_get_pins(struct snd_tea575x *tea)
 {
-	int freq;
+	struct bttv *btv = tea->private_data;
+	struct bttv_tea575x_gpio gpio = btv->tea_gpio;
+	u8 ret = 0;
+	u16 val;
+
+	if (btv->mbox_ior) {
+		/* IOR and CSEL active */
+		gpio_bits(btv->mbox_ior | btv->mbox_csel, 0);
+		udelay(5);
+	}
+	val = gpio_read();
+	if (btv->mbox_ior) {
+		/* all inactive */
+		gpio_bits(btv->mbox_ior | btv->mbox_iow | btv->mbox_csel,
+			  btv->mbox_ior | btv->mbox_iow | btv->mbox_csel);
+	}
+
+	if (val & (1 << gpio.data))
+		ret |= TEA575X_DATA;
+	if (val & (1 << gpio.most))
+		ret |= TEA575X_MOST;
+
+	return ret;
+}
+
+static void bttv_tea575x_set_direction(struct snd_tea575x *tea, bool output)
+{
+	struct bttv *btv = tea->private_data;
+	struct bttv_tea575x_gpio gpio = btv->tea_gpio;
+	u32 mask = (1 << gpio.clk) | (1 << gpio.wren) | (1 << gpio.data) |
+		   (1 << gpio.most);
+
+	if (output)
+		gpio_inout(mask, (1 << gpio.data) | (1 << gpio.clk) |
+				 (1 << gpio.wren));
+	else
+		gpio_inout(mask, (1 << gpio.clk) | (1 << gpio.wren));
+}
+
+static struct snd_tea575x_ops bttv_tea_ops = {
+	.set_pins = bttv_tea575x_set_pins,
+	.get_pins = bttv_tea575x_get_pins,
+	.set_direction = bttv_tea575x_set_direction,
+};
+
+static int tea575x_init(struct bttv *btv)
+{
+	btv->tea.private_data = btv;
+	btv->tea.ops = &bttv_tea_ops;
+	if (!snd_tea575x_hw_init(&btv->tea)) {
+		pr_info("%d: detected TEA575x radio\n", btv->c.nr);
+		btv->tea.mute = false;
+		return 0;
+	}
 
+	btv->has_tea575x = 0;
+	btv->has_radio = 0;
+
+	return -ENODEV;
+}
+
+/* ----------------------------------------------------------------------- */
+
+static int terratec_active_radio_upgrade(struct bttv *btv)
+{
 	btv->has_radio    = 1;
-	btv->has_matchbox = 1;
-	btv->mbox_we      = 0x10;
-	btv->mbox_most    = 0x20;
-	btv->mbox_clk     = 0x08;
-	btv->mbox_data    = 0x04;
-	btv->mbox_mask    = 0x3c;
+	btv->has_tea575x  = 1;
+	btv->tea_gpio.wren = 4;
+	btv->tea_gpio.most = 5;
+	btv->tea_gpio.clk  = 3;
+	btv->tea_gpio.data = 2;
 
 	btv->mbox_iow     = 1 <<  8;
 	btv->mbox_ior     = 1 <<  9;
 	btv->mbox_csel    = 1 << 10;
 
-	freq=88000/62.5;
-	tea5757_write(btv, 5 * freq + 0x358); /* write 0x1ed8 */
-	if (0x1ed8 == tea5757_read(btv)) {
+	if (!tea575x_init(btv)) {
 		pr_info("%d: Terratec Active Radio Upgrade found\n", btv->c.nr);
-		btv->has_radio    = 1;
-		btv->has_saa6588  = 1;
-		btv->has_matchbox = 1;
-	} else {
-		btv->has_radio    = 0;
-		btv->has_matchbox = 0;
+		btv->has_saa6588 = 1;
 	}
+
 	return 0;
 }
 
@@ -4292,181 +4370,6 @@ init_PCI8604PW(struct bttv *btv)
 	}
 }
 
-
-
-/* ----------------------------------------------------------------------- */
-/* Miro Pro radio stuff -- the tea5757 is connected to some GPIO ports     */
-/*
- * Copyright (c) 1999 Csaba Halasz <qgehali@uni-miskolc.hu>
- * This code is placed under the terms of the GNU General Public License
- *
- * Brutally hacked by Dan Sheridan <dan.sheridan@contact.org.uk> djs52 8/3/00
- */
-
-static void bus_low(struct bttv *btv, int bit)
-{
-	if (btv->mbox_ior) {
-		gpio_bits(btv->mbox_ior | btv->mbox_iow | btv->mbox_csel,
-			  btv->mbox_ior | btv->mbox_iow | btv->mbox_csel);
-		udelay(5);
-	}
-
-	gpio_bits(bit,0);
-	udelay(5);
-
-	if (btv->mbox_ior) {
-		gpio_bits(btv->mbox_iow | btv->mbox_csel, 0);
-		udelay(5);
-	}
-}
-
-static void bus_high(struct bttv *btv, int bit)
-{
-	if (btv->mbox_ior) {
-		gpio_bits(btv->mbox_ior | btv->mbox_iow | btv->mbox_csel,
-			  btv->mbox_ior | btv->mbox_iow | btv->mbox_csel);
-		udelay(5);
-	}
-
-	gpio_bits(bit,bit);
-	udelay(5);
-
-	if (btv->mbox_ior) {
-		gpio_bits(btv->mbox_iow | btv->mbox_csel, 0);
-		udelay(5);
-	}
-}
-
-static int bus_in(struct bttv *btv, int bit)
-{
-	if (btv->mbox_ior) {
-		gpio_bits(btv->mbox_ior | btv->mbox_iow | btv->mbox_csel,
-			  btv->mbox_ior | btv->mbox_iow | btv->mbox_csel);
-		udelay(5);
-
-		gpio_bits(btv->mbox_iow | btv->mbox_csel, 0);
-		udelay(5);
-	}
-	return gpio_read() & (bit);
-}
-
-/* TEA5757 register bits */
-#define TEA_FREQ		0:14
-#define TEA_BUFFER		15:15
-
-#define TEA_SIGNAL_STRENGTH	16:17
-
-#define TEA_PORT1		18:18
-#define TEA_PORT0		19:19
-
-#define TEA_BAND		20:21
-#define TEA_BAND_FM		0
-#define TEA_BAND_MW		1
-#define TEA_BAND_LW		2
-#define TEA_BAND_SW		3
-
-#define TEA_MONO		22:22
-#define TEA_ALLOW_STEREO	0
-#define TEA_FORCE_MONO		1
-
-#define TEA_SEARCH_DIRECTION	23:23
-#define TEA_SEARCH_DOWN		0
-#define TEA_SEARCH_UP		1
-
-#define TEA_STATUS		24:24
-#define TEA_STATUS_TUNED	0
-#define TEA_STATUS_SEARCHING	1
-
-/* Low-level stuff */
-static int tea5757_read(struct bttv *btv)
-{
-	unsigned long timeout;
-	int value = 0;
-	int i;
-
-	/* better safe than sorry */
-	gpio_inout(btv->mbox_mask, btv->mbox_clk | btv->mbox_we);
-
-	if (btv->mbox_ior) {
-		gpio_bits(btv->mbox_ior | btv->mbox_iow | btv->mbox_csel,
-			  btv->mbox_ior | btv->mbox_iow | btv->mbox_csel);
-		udelay(5);
-	}
-
-	if (bttv_gpio)
-		bttv_gpio_tracking(btv,"tea5757 read");
-
-	bus_low(btv,btv->mbox_we);
-	bus_low(btv,btv->mbox_clk);
-
-	udelay(10);
-	timeout= jiffies + msecs_to_jiffies(1000);
-
-	/* wait for DATA line to go low; error if it doesn't */
-	while (bus_in(btv,btv->mbox_data) && time_before(jiffies, timeout))
-		schedule();
-	if (bus_in(btv,btv->mbox_data)) {
-		pr_warn("%d: tea5757: read timeout\n", btv->c.nr);
-		return -1;
-	}
-
-	dprintk("%d: tea5757:", btv->c.nr);
-	for (i = 0; i < 24; i++) {
-		udelay(5);
-		bus_high(btv,btv->mbox_clk);
-		udelay(5);
-		dprintk_cont("%c",
-			     bus_in(btv, btv->mbox_most) == 0 ? 'T' : '-');
-		bus_low(btv,btv->mbox_clk);
-		value <<= 1;
-		value |= (bus_in(btv,btv->mbox_data) == 0)?0:1;  /* MSB first */
-		dprintk_cont("%c",
-			     bus_in(btv, btv->mbox_most) == 0 ? 'S' : 'M');
-	}
-	dprintk_cont("\n");
-	dprintk("%d: tea5757: read 0x%X\n", btv->c.nr, value);
-	return value;
-}
-
-static int tea5757_write(struct bttv *btv, int value)
-{
-	int i;
-	int reg = value;
-
-	gpio_inout(btv->mbox_mask, btv->mbox_clk | btv->mbox_we | btv->mbox_data);
-
-	if (btv->mbox_ior) {
-		gpio_bits(btv->mbox_ior | btv->mbox_iow | btv->mbox_csel,
-			  btv->mbox_ior | btv->mbox_iow | btv->mbox_csel);
-		udelay(5);
-	}
-	if (bttv_gpio)
-		bttv_gpio_tracking(btv,"tea5757 write");
-
-	dprintk("%d: tea5757: write 0x%X\n", btv->c.nr, value);
-	bus_low(btv,btv->mbox_clk);
-	bus_high(btv,btv->mbox_we);
-	for (i = 0; i < 25; i++) {
-		if (reg & 0x1000000)
-			bus_high(btv,btv->mbox_data);
-		else
-			bus_low(btv,btv->mbox_data);
-		reg <<= 1;
-		bus_high(btv,btv->mbox_clk);
-		udelay(10);
-		bus_low(btv,btv->mbox_clk);
-		udelay(10);
-	}
-	bus_low(btv,btv->mbox_we);  /* unmute !!! */
-	return 0;
-}
-
-void tea5757_set_freq(struct bttv *btv, unsigned short freq)
-{
-	dprintk("tea5757_set_freq %d\n",freq);
-	tea5757_write(btv, 5 * freq + 0x358); /* add 10.7MHz (see docs) */
-}
-
 /* RemoteVision MX (rv605) muxsel helper [Miguel Freitas]
  *
  * This is needed because rv605 don't use a normal multiplex, but a crosspoint
diff --git a/drivers/media/pci/bt8xx/bttv-driver.c b/drivers/media/pci/bt8xx/bttv-driver.c
index 6eed8f7..e7f8ade 100644
--- a/drivers/media/pci/bt8xx/bttv-driver.c
+++ b/drivers/media/pci/bt8xx/bttv-driver.c
@@ -1874,8 +1874,10 @@ static void bttv_set_frequency(struct bttv *btv, const struct v4l2_frequency *f)
 	if (new_freq.type == V4L2_TUNER_RADIO) {
 		radio_enable(btv);
 		btv->radio_freq = new_freq.frequency;
-		if (btv->has_matchbox)
-			tea5757_set_freq(btv, btv->radio_freq);
+		if (btv->has_tea575x) {
+			btv->tea.freq = btv->radio_freq;
+			snd_tea575x_set_freq(&btv->tea);
+		}
 	} else {
 		btv->tv_freq = new_freq.frequency;
 	}
diff --git a/drivers/media/pci/bt8xx/bttvp.h b/drivers/media/pci/bt8xx/bttvp.h
index e6e2c60..bc048c5 100644
--- a/drivers/media/pci/bt8xx/bttvp.h
+++ b/drivers/media/pci/bt8xx/bttvp.h
@@ -42,6 +42,7 @@
 #include <media/tveeprom.h>
 #include <media/rc-core.h>
 #include <media/ir-kbd-i2c.h>
+#include <media/tea575x.h>
 
 #include "bt848.h"
 #include "bttv.h"
@@ -359,6 +360,10 @@ struct bttv_suspend_state {
 	struct bttv_buffer     *vbi;
 };
 
+struct bttv_tea575x_gpio {
+	u8 data, clk, wren, most;
+};
+
 struct bttv {
 	struct bttv_core c;
 
@@ -445,12 +450,9 @@ struct bttv {
 
 	/* miro/pinnacle + Aimslab VHX
 	   philips matchbox (tea5757 radio tuner) support */
-	int has_matchbox;
-	int mbox_we;
-	int mbox_data;
-	int mbox_clk;
-	int mbox_most;
-	int mbox_mask;
+	int has_tea575x;
+	struct bttv_tea575x_gpio tea_gpio;
+	struct snd_tea575x tea;
 
 	/* ISA stuff (Terratec Active Radio Upgrade) */
 	int mbox_ior;
-- 
Ondrej Zary

[PATCH 2/3] tea575x: split and export functions

[Ondrej Zary]

Split ioctl interface from enum_freq_bands, g_tuner and s_hw_freq_seek
functions and export them to be used in other drivers like bttv.

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
---
 drivers/media/radio/tea575x.c |   41 ++++++++++++++++++++++++++++++++---------
 include/media/tea575x.h       |    5 +++++
 2 files changed, 37 insertions(+), 9 deletions(-)

diff --git a/drivers/media/radio/tea575x.c b/drivers/media/radio/tea575x.c
index f1a0867..43d1ea5 100644
--- a/drivers/media/radio/tea575x.c
+++ b/drivers/media/radio/tea575x.c
@@ -247,10 +247,9 @@ static int vidioc_querycap(struct file *file, void  *priv,
 	return 0;
 }
 
-static int vidioc_enum_freq_bands(struct file *file, void *priv,
-					 struct v4l2_frequency_band *band)
+int snd_tea575x_enum_freq_bands(struct snd_tea575x *tea,
+					struct v4l2_frequency_band *band)
 {
-	struct snd_tea575x *tea = video_drvdata(file);
 	int index;
 
 	if (band->tuner != 0)
@@ -279,18 +278,25 @@ static int vidioc_enum_freq_bands(struct file *file, void *priv,
 
 	return 0;
 }
+EXPORT_SYMBOL(snd_tea575x_enum_freq_bands);
 
-static int vidioc_g_tuner(struct file *file, void *priv,
-					struct v4l2_tuner *v)
+static int vidioc_enum_freq_bands(struct file *file, void *priv,
+					 struct v4l2_frequency_band *band)
 {
 	struct snd_tea575x *tea = video_drvdata(file);
+
+	return snd_tea575x_enum_freq_bands(tea, band);
+}
+
+int snd_tea575x_g_tuner(struct snd_tea575x *tea, struct v4l2_tuner *v)
+{
 	struct v4l2_frequency_band band_fm = { 0, };
 
 	if (v->index > 0)
 		return -EINVAL;
 
 	snd_tea575x_read(tea);
-	vidioc_enum_freq_bands(file, priv, &band_fm);
+	snd_tea575x_enum_freq_bands(tea, &band_fm);
 
 	memset(v, 0, sizeof(*v));
 	strlcpy(v->name, tea->has_am ? "FM/AM" : "FM", sizeof(v->name));
@@ -304,6 +310,15 @@ static int vidioc_g_tuner(struct file *file, void *priv,
 	v->signal = tea->tuned ? 0xffff : 0;
 	return 0;
 }
+EXPORT_SYMBOL(snd_tea575x_g_tuner);
+
+static int vidioc_g_tuner(struct file *file, void *priv,
+					struct v4l2_tuner *v)
+{
+	struct snd_tea575x *tea = video_drvdata(file);
+
+	return snd_tea575x_g_tuner(tea, v);
+}
 
 static int vidioc_s_tuner(struct file *file, void *priv,
 					const struct v4l2_tuner *v)
@@ -356,10 +371,9 @@ static int vidioc_s_frequency(struct file *file, void *priv,
 	return 0;
 }
 
-static int vidioc_s_hw_freq_seek(struct file *file, void *fh,
-					const struct v4l2_hw_freq_seek *a)
+int snd_tea575x_s_hw_freq_seek(struct file *file, struct snd_tea575x *tea,
+				const struct v4l2_hw_freq_seek *a)
 {
-	struct snd_tea575x *tea = video_drvdata(file);
 	unsigned long timeout;
 	int i, spacing;
 
@@ -442,6 +456,15 @@ static int vidioc_s_hw_freq_seek(struct file *file, void *fh,
 	snd_tea575x_set_freq(tea);
 	return -ENODATA;
 }
+EXPORT_SYMBOL(snd_tea575x_s_hw_freq_seek);
+
+static int vidioc_s_hw_freq_seek(struct file *file, void *fh,
+					const struct v4l2_hw_freq_seek *a)
+{
+	struct snd_tea575x *tea = video_drvdata(file);
+
+	return snd_tea575x_s_hw_freq_seek(file, tea, a);
+}
 
 static int tea575x_s_ctrl(struct v4l2_ctrl *ctrl)
 {
diff --git a/include/media/tea575x.h b/include/media/tea575x.h
index 2d4fa59..5d09657 100644
--- a/include/media/tea575x.h
+++ b/include/media/tea575x.h
@@ -71,6 +71,11 @@ struct snd_tea575x {
 	int (*ext_init)(struct snd_tea575x *tea);
 };
 
+int snd_tea575x_enum_freq_bands(struct snd_tea575x *tea,
+					struct v4l2_frequency_band *band);
+int snd_tea575x_g_tuner(struct snd_tea575x *tea, struct v4l2_tuner *v);
+int snd_tea575x_s_hw_freq_seek(struct file *file, struct snd_tea575x *tea,
+				const struct v4l2_hw_freq_seek *a);
 int snd_tea575x_hw_init(struct snd_tea575x *tea);
 int snd_tea575x_init(struct snd_tea575x *tea, struct module *owner);
 void snd_tea575x_exit(struct snd_tea575x *tea);
-- 
Ondrej Zary

[PATCH 3/3] bttv: Improve TEA575x support

[Ondrej Zary]

Improve g_tuner and add s_hw_freq_seek and enum_freq_bands support for cards
with TEA575x radio.

This allows signal/stereo detection and HW seek to work on these cards.

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
---
 drivers/media/pci/bt8xx/bttv-driver.c |   31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/drivers/media/pci/bt8xx/bttv-driver.c b/drivers/media/pci/bt8xx/bttv-driver.c
index e7f8ade..5476a7d 100644
--- a/drivers/media/pci/bt8xx/bttv-driver.c
+++ b/drivers/media/pci/bt8xx/bttv-driver.c
@@ -2515,6 +2515,8 @@ static int bttv_querycap(struct file *file, void  *priv,
 		if (btv->has_saa6588)
 			cap->device_caps |= V4L2_CAP_READWRITE |
 						V4L2_CAP_RDS_CAPTURE;
+		if (btv->has_tea575x)
+			cap->device_caps |= V4L2_CAP_HW_FREQ_SEEK;
 	}
 	return 0;
 }
@@ -3244,6 +3246,9 @@ static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
 	if (btv->audio_mode_gpio)
 		btv->audio_mode_gpio(btv, t, 0);
 
+	if (btv->has_tea575x)
+		return snd_tea575x_g_tuner(&btv->tea, t);
+
 	return 0;
 }
 
@@ -3261,6 +3266,30 @@ static int radio_s_tuner(struct file *file, void *priv,
 	return 0;
 }
 
+static int radio_s_hw_freq_seek(struct file *file, void *priv,
+					const struct v4l2_hw_freq_seek *a)
+{
+	struct bttv_fh *fh = priv;
+	struct bttv *btv = fh->btv;
+
+	if (btv->has_tea575x)
+		return snd_tea575x_s_hw_freq_seek(file, &btv->tea, a);
+	else
+		return -ENOTTY;
+}
+
+static int radio_enum_freq_bands(struct file *file, void *priv,
+					 struct v4l2_frequency_band *band)
+{
+	struct bttv_fh *fh = priv;
+	struct bttv *btv = fh->btv;
+
+	if (btv->has_tea575x)
+		return snd_tea575x_enum_freq_bands(&btv->tea, band);
+	else
+		return -ENOTTY;
+}
+
 static ssize_t radio_read(struct file *file, char __user *data,
 			 size_t count, loff_t *ppos)
 {
@@ -3318,6 +3347,8 @@ static const struct v4l2_ioctl_ops radio_ioctl_ops = {
 	.vidioc_s_tuner         = radio_s_tuner,
 	.vidioc_g_frequency     = bttv_g_frequency,
 	.vidioc_s_frequency     = bttv_s_frequency,
+	.vidioc_s_hw_freq_seek	= radio_s_hw_freq_seek,
+	.vidioc_enum_freq_bands	= radio_enum_freq_bands,
 	.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
 	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
 };
-- 
Ondrej Zary

Re: [PATCH 3/3] bttv: Improve TEA575x support

[Hans Verkuil]

Hi Ondrej,

Just two small comments:

On 01/15/2015 09:10 PM, Ondrej Zary wrote:
> Improve g_tuner and add s_hw_freq_seek and enum_freq_bands support for cards
> with TEA575x radio.
> 
> This allows signal/stereo detection and HW seek to work on these cards.
> 
> Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
> ---
>  drivers/media/pci/bt8xx/bttv-driver.c |   31 +++++++++++++++++++++++++++++++
>  1 file changed, 31 insertions(+)
> 
> diff --git a/drivers/media/pci/bt8xx/bttv-driver.c b/drivers/media/pci/bt8xx/bttv-driver.c
> index e7f8ade..5476a7d 100644
> --- a/drivers/media/pci/bt8xx/bttv-driver.c
> +++ b/drivers/media/pci/bt8xx/bttv-driver.c
> @@ -2515,6 +2515,8 @@ static int bttv_querycap(struct file *file, void  *priv,
>  		if (btv->has_saa6588)
>  			cap->device_caps |= V4L2_CAP_READWRITE |
>  						V4L2_CAP_RDS_CAPTURE;
> +		if (btv->has_tea575x)
> +			cap->device_caps |= V4L2_CAP_HW_FREQ_SEEK;
>  	}
>  	return 0;
>  }
> @@ -3244,6 +3246,9 @@ static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
>  	if (btv->audio_mode_gpio)
>  		btv->audio_mode_gpio(btv, t, 0);
>  
> +	if (btv->has_tea575x)
> +		return snd_tea575x_g_tuner(&btv->tea, t);
> +
>  	return 0;
>  }
>  
> @@ -3261,6 +3266,30 @@ static int radio_s_tuner(struct file *file, void *priv,
>  	return 0;
>  }
>  
> +static int radio_s_hw_freq_seek(struct file *file, void *priv,
> +					const struct v4l2_hw_freq_seek *a)
> +{
> +	struct bttv_fh *fh = priv;
> +	struct bttv *btv = fh->btv;
> +
> +	if (btv->has_tea575x)
> +		return snd_tea575x_s_hw_freq_seek(file, &btv->tea, a);
> +	else
> +		return -ENOTTY;

Please drop the superfluous 'else'. I thought checkpatch warned about this these days.

> +}
> +
> +static int radio_enum_freq_bands(struct file *file, void *priv,
> +					 struct v4l2_frequency_band *band)
> +{
> +	struct bttv_fh *fh = priv;
> +	struct bttv *btv = fh->btv;
> +
> +	if (btv->has_tea575x)
> +		return snd_tea575x_enum_freq_bands(&btv->tea, band);
> +	else
> +		return -ENOTTY;

Ditto.

> +}
> +
>  static ssize_t radio_read(struct file *file, char __user *data,
>  			 size_t count, loff_t *ppos)
>  {
> @@ -3318,6 +3347,8 @@ static const struct v4l2_ioctl_ops radio_ioctl_ops = {
>  	.vidioc_s_tuner         = radio_s_tuner,
>  	.vidioc_g_frequency     = bttv_g_frequency,
>  	.vidioc_s_frequency     = bttv_s_frequency,
> +	.vidioc_s_hw_freq_seek	= radio_s_hw_freq_seek,
> +	.vidioc_enum_freq_bands	= radio_enum_freq_bands,
>  	.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
>  	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
>  };
> 

Regards,

	Hans

[PATCH 3/3 v2] bttv: Improve TEA575x support

[Ondrej Zary]

Improve g_tuner and add s_hw_freq_seek and enum_freq_bands support for cards
with TEA575x radio.

This allows signal/stereo detection and HW seek to work on these cards.

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
---
 drivers/media/pci/bt8xx/bttv-driver.c |   31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/drivers/media/pci/bt8xx/bttv-driver.c b/drivers/media/pci/bt8xx/bttv-driver.c
index e7f8ade..4ec2a3c 100644
--- a/drivers/media/pci/bt8xx/bttv-driver.c
+++ b/drivers/media/pci/bt8xx/bttv-driver.c
@@ -2515,6 +2515,8 @@ static int bttv_querycap(struct file *file, void  *priv,
 		if (btv->has_saa6588)
 			cap->device_caps |= V4L2_CAP_READWRITE |
 						V4L2_CAP_RDS_CAPTURE;
+		if (btv->has_tea575x)
+			cap->device_caps |= V4L2_CAP_HW_FREQ_SEEK;
 	}
 	return 0;
 }
@@ -3244,6 +3246,9 @@ static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
 	if (btv->audio_mode_gpio)
 		btv->audio_mode_gpio(btv, t, 0);
 
+	if (btv->has_tea575x)
+		return snd_tea575x_g_tuner(&btv->tea, t);
+
 	return 0;
 }
 
@@ -3261,6 +3266,30 @@ static int radio_s_tuner(struct file *file, void *priv,
 	return 0;
 }
 
+static int radio_s_hw_freq_seek(struct file *file, void *priv,
+					const struct v4l2_hw_freq_seek *a)
+{
+	struct bttv_fh *fh = priv;
+	struct bttv *btv = fh->btv;
+
+	if (btv->has_tea575x)
+		return snd_tea575x_s_hw_freq_seek(file, &btv->tea, a);
+
+	return -ENOTTY;
+}
+
+static int radio_enum_freq_bands(struct file *file, void *priv,
+					 struct v4l2_frequency_band *band)
+{
+	struct bttv_fh *fh = priv;
+	struct bttv *btv = fh->btv;
+
+	if (btv->has_tea575x)
+		return snd_tea575x_enum_freq_bands(&btv->tea, band);
+
+	return -ENOTTY;
+}
+
 static ssize_t radio_read(struct file *file, char __user *data,
 			 size_t count, loff_t *ppos)
 {
@@ -3318,6 +3347,8 @@ static const struct v4l2_ioctl_ops radio_ioctl_ops = {
 	.vidioc_s_tuner         = radio_s_tuner,
 	.vidioc_g_frequency     = bttv_g_frequency,
 	.vidioc_s_frequency     = bttv_s_frequency,
+	.vidioc_s_hw_freq_seek	= radio_s_hw_freq_seek,
+	.vidioc_enum_freq_bands	= radio_enum_freq_bands,
 	.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
 	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
 };
-- 
Ondrej Zary