Re: [alsa-devel] [PATCH v5] [resend] radio-sf16fmr2: convert to generic TEA575x interface

Takashi Iwai
2011-05-26T07:45:48Z

At Wed, 25 May 2011 21:21:30 -0300,
Mauro Carvalho Chehab wrote:
>
> Em 23-05-2011 09:17, Ondrej Zary escreveu:
> > Convert radio-sf16fmr2 to use generic TEA575x implementation. Most of the
> > driver code goes away as SF16-FMR2 is basically just a TEA5757 tuner
> > connected to ISA bus.
> > The card can optionally be equipped with PT2254A volume control (equivalent
> > of TC9154AP) - the volume setting is completely reworked (with balance control
> > added) and tested.
>
> Ondrej,
>
> As your first series went via alsa tree, and we are close to the end of the merge window,
> and assuming that Takashi didn't apply those patches on his tree, as you're re-sending it,
> I think that the better is to wait for the end of the merge window, in order to allow us
> to sync our development tree with 2.6.40-rc1, and then review and apply it on the top of it.

Yeah, I didn't pick it up as the patches are rather V4L-side changes
(although tea575x.c is in sound sub-directory).
And I agree with Mauro - let's merge it after rc1, so that we stand on
the same ground. This sort of cross-tree change is better done at the
fixed point than in flux like during merge window.

That being said, I don't mind that Mauro or Hans applies these through
V4L tree. In that case, you can take my acks for both patches.

Acked-by: Takashi Iwai <tiwai@suse.de>

Of if it's preferred through sound tree, I can take them later.

thanks,

Takashi

> Thanks,
> Mauro.
>
> >
> > Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
> >
> > --- linux-2.6.39-rc2-/sound/pci/Kconfig 2011-05-15 18:50:18.000000000 +0200
> > +++ linux-2.6.39-rc2/sound/pci/Kconfig 2011-05-17 23:35:30.000000000 +0200
> > @@ -565,8 +565,8 @@ config SND_FM801_TEA575X_BOOL
> >
> > config SND_TEA575X
> > tristate
> > - depends on SND_FM801_TEA575X_BOOL || SND_ES1968_RADIO
> > - default SND_FM801 || SND_ES1968
> > + depends on SND_FM801_TEA575X_BOOL || SND_ES1968_RADIO || RADIO_SF16FMR2
> > + default SND_FM801 || SND_ES1968 || RADIO_SF16FMR2
> >
> > source "sound/pci/hda/Kconfig"
> >
> > --- linux-2.6.39-rc2-/drivers/media/radio/radio-sf16fmr2.c 2011-04-06 03:30:43.000000000 +0200
> > +++ linux-2.6.39-rc2/drivers/media/radio/radio-sf16fmr2.c 2011-05-19 17:56:08.000000000 +0200
> > @@ -1,441 +1,209 @@
> > -/* SF16FMR2 radio driver for Linux radio support
> > - * heavily based on fmi driver...
> > - * (c) 2000-2002 Ziglio Frediano, freddy77@angelfire.com
> > +/* SF16-FMR2 radio driver for Linux
> > + * Copyright (c) 2011 Ondrej Zary
> > *
> > - * Notes on the hardware
> > - *
> > - * Frequency control is done digitally -- ie out(port,encodefreq(95.8));
> > - * No volume control - only mute/unmute - you have to use line volume
> > - *
> > - * For read stereo/mono you must wait 0.1 sec after set frequency and
> > - * card unmuted so I set frequency on unmute
> > - * Signal handling seem to work only on autoscanning (not implemented)
> > - *
> > - * Converted to V4L2 API by Mauro Carvalho Chehab <mchehab@infradead.org>
> > + * Original driver was (c) 2000-2002 Ziglio Frediano, freddy77@angelfire.com
> > + * but almost nothing remained here after conversion to generic TEA575x
> > + * implementation
> > */
> >
> > +#include <linux/delay.h>
> > #include <linux/module.h> /* Modules */
> > #include <linux/init.h> /* Initdata */
> > #include <linux/ioport.h> /* request_region */
> > -#include <linux/delay.h> /* udelay */
> > -#include <linux/videodev2.h> /* kernel radio structs */
> > -#include <linux/mutex.h>
> > -#include <linux/version.h> /* for KERNEL_VERSION MACRO */
> > #include <linux/io.h> /* outb, outb_p */
> > -#include <media/v4l2-device.h>
> > -#include <media/v4l2-ioctl.h>
> > +#include <sound/tea575x-tuner.h>
> >
> > -MODULE_AUTHOR("Ziglio Frediano, freddy77@angelfire.com");
> > -MODULE_DESCRIPTION("A driver for the SF16FMR2 radio.");
> > +MODULE_AUTHOR("Ondrej Zary");
> > +MODULE_DESCRIPTION("MediaForte SF16-FMR2 FM radio card driver");
> > MODULE_LICENSE("GPL");
> >
> > -static int io = 0x384;
> > -static int radio_nr = -1;
> > -
> > -module_param(io, int, 0);
> > -MODULE_PARM_DESC(io, "I/O address of the SF16FMR2 card (should be 0x384, if do not work try 0x284)");
> > -module_param(radio_nr, int, 0);
> > -
> > -#define RADIO_VERSION KERNEL_VERSION(0,0,2)
> > -
> > -#define AUD_VOL_INDEX 1
> > -
> > -#undef DEBUG
> > -//#define DEBUG 1
> > -
> > -#ifdef DEBUG
> > -# define debug_print(s) printk s
> > -#else
> > -# define debug_print(s)
> > -#endif
> > -
> > -/* this should be static vars for module size */
> > -struct fmr2
> > -{
> > - struct v4l2_device v4l2_dev;
> > - struct video_device vdev;
> > - struct mutex lock;
> > +struct fmr2 {
> > int io;
> > - int curvol; /* 0-15 */
> > - int mute;
> > - int stereo; /* card is producing stereo audio */
> > - unsigned long curfreq; /* freq in kHz */
> > - int card_type;
> > + struct snd_tea575x tea;
> > + struct v4l2_ctrl *volume;
> > + struct v4l2_ctrl *balance;
> > };
> >
> > +/* the port is hardwired so no need to support multiple cards */
> > +#define FMR2_PORT 0x384
> > static struct fmr2 fmr2_card;
> >
> > -/* hw precision is 12.5 kHz
> > - * It is only useful to give freq in interval of 200 (=0.0125Mhz),
> > - * other bits will be truncated
> > - */
> > -#define RSF16_ENCODE(x) ((x) / 200 + 856)
> > -#define RSF16_MINFREQ (87 * 16000)
> > -#define RSF16_MAXFREQ (108 * 16000)
> > -
> > -static inline void wait(int n, int io)
> > -{
> > - for (; n; --n)
> > - inb(io);
> > -}
> > -
> > -static void outbits(int bits, unsigned int data, int nWait, int io)
> > -{
> > - int bit;
> > -
> > - for (; --bits >= 0;) {
> > - bit = (data >> bits) & 1;
> > - outb(bit, io);
> > - wait(nWait, io);
> > - outb(bit | 2, io);
> > - wait(nWait, io);
> > - outb(bit, io);
> > - wait(nWait, io);
> > - }
> > -}
> > -
> > -static inline void fmr2_mute(int io)
> > -{
> > - outb(0x00, io);
> > - wait(4, io);
> > -}
> > -
> > -static inline void fmr2_unmute(int io)
> > -{
> > - outb(0x04, io);
> > - wait(4, io);
> > -}
> > -
> > -static inline int fmr2_stereo_mode(int io)
> > -{
> > - int n = inb(io);
> > -
> > - outb(6, io);
> > - inb(io);
> > - n = ((n >> 3) & 1) ^ 1;
> > - debug_print((KERN_DEBUG "stereo: %d\n", n));
> > - return n;
> > -}
> > -
> > -static int fmr2_product_info(struct fmr2 *dev)
> > -{
> > - int n = inb(dev->io);
> > -
> > - n &= 0xC1;
> > - if (n == 0) {
> > - /* this should support volume set */
> > - dev->card_type = 12;
> > - return 0;
> > - }
> > - /* not volume (mine is 11) */
> > - dev->card_type = (n == 128) ? 11 : 0;
> > - return n;
> > -}
> > -
> > -static inline int fmr2_getsigstr(struct fmr2 *dev)
> > -{
> > - /* !!! works only if scanning freq */
> > - int res = 0xffff;
> > -
> > - outb(5, dev->io);
> > - wait(4, dev->io);
> > - if (!(inb(dev->io) & 1))
> > - res = 0;
> > - debug_print((KERN_DEBUG "signal: %d\n", res));
> > - return res;
> > -}
> > -
> > -/* set frequency and unmute card */
> > -static int fmr2_setfreq(struct fmr2 *dev)
> > -{
> > - unsigned long freq = dev->curfreq;
> > -
> > - fmr2_mute(dev->io);
> > -
> > - /* 0x42 for mono output
> > - * 0x102 forward scanning
> > - * 0x182 scansione avanti
> > - */
> > - outbits(9, 0x2, 3, dev->io);
> > - outbits(16, RSF16_ENCODE(freq), 2, dev->io);
> > -
> > - fmr2_unmute(dev->io);
> > -
> > - /* wait 0.11 sec */
> > - msleep(110);
> > -
> > - /* NOTE if mute this stop radio
> > - you must set freq on unmute */
> > - dev->stereo = fmr2_stereo_mode(dev->io);
> > - return 0;
> > -}
> > -
> > -/* !!! not tested, in my card this does't work !!! */
> > -static int fmr2_setvolume(struct fmr2 *dev)
> > -{
> > - int vol[16] = { 0x021, 0x084, 0x090, 0x104,
> > - 0x110, 0x204, 0x210, 0x402,
> > - 0x404, 0x408, 0x410, 0x801,
> > - 0x802, 0x804, 0x808, 0x810 };
> > - int i, a;
> > - int n = vol[dev->curvol & 0x0f];
> > -
> > - if (dev->card_type != 11)
> > - return 1;
> > -
> > - for (i = 12; --i >= 0; ) {
> > - a = ((n >> i) & 1) << 6; /* if (a==0) a = 0; else a = 0x40; */
> > - outb(a | 4, dev->io);
> > - wait(4, dev->io);
> > - outb(a | 0x24, dev->io);
> > - wait(4, dev->io);
> > - outb(a | 4, dev->io);
> > - wait(4, dev->io);
> > - }
> > - for (i = 6; --i >= 0; ) {
> > - a = ((0x18 >> i) & 1) << 6;
> > - outb(a | 4, dev->io);
> > - wait(4, dev->io);
> > - outb(a | 0x24, dev->io);
> > - wait(4, dev->io);
> > - outb(a | 4, dev->io);
> > - wait(4, dev->io);
> > - }
> > - wait(4, dev->io);
> > - outb(0x14, dev->io);
> > - return 0;
> > -}
> > -
> > -static int vidioc_querycap(struct file *file, void *priv,
> > - struct v4l2_capability *v)
> > -{
> > - strlcpy(v->driver, "radio-sf16fmr2", sizeof(v->driver));
> > - strlcpy(v->card, "SF16-FMR2 radio", sizeof(v->card));
> > - strlcpy(v->bus_info, "ISA", sizeof(v->bus_info));
> > - v->version = RADIO_VERSION;
> > - v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
> > - return 0;
> > -}
> > +/* TEA575x tuner pins */
> > +#define STR_DATA (1 << 0)
> > +#define STR_CLK (1 << 1)
> > +#define STR_WREN (1 << 2)
> > +#define STR_MOST (1 << 3)
> > +/* PT2254A/TC9154A volume control pins */
> > +#define PT_ST (1 << 4)
> > +#define PT_CK (1 << 5)
> > +#define PT_DATA (1 << 6)
> > +/* volume control presence pin */
> > +#define FMR2_HASVOL (1 << 7)
> >
> > -static int vidioc_g_tuner(struct file *file, void *priv,
> > - struct v4l2_tuner *v)
> > +static void fmr2_tea575x_set_pins(struct snd_tea575x *tea, u8 pins)
> > {
> > - struct fmr2 *fmr2 = video_drvdata(file);
> > -
> > - if (v->index > 0)
> > - return -EINVAL;
> > + struct fmr2 *fmr2 = tea->private_data;
> > + u8 bits = 0;
> >
> > - strlcpy(v->name, "FM", sizeof(v->name));
> > - v->type = V4L2_TUNER_RADIO;
> > -
> > - v->rangelow = RSF16_MINFREQ;
> > - v->rangehigh = RSF16_MAXFREQ;
> > - v->rxsubchans = fmr2->stereo ? V4L2_TUNER_SUB_STEREO :
> > - V4L2_TUNER_SUB_MONO;
> > - v->capability = V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LOW;
> > - v->audmode = V4L2_TUNER_MODE_STEREO;
> > - mutex_lock(&fmr2->lock);
> > - v->signal = fmr2_getsigstr(fmr2);
> > - mutex_unlock(&fmr2->lock);
> > - return 0;
> > -}
> > + bits |= (pins & TEA575X_DATA) ? STR_DATA : 0;
> > + bits |= (pins & TEA575X_CLK) ? STR_CLK : 0;
> > + /* WRITE_ENABLE is inverted, DATA must be high during read */
> > + bits |= (pins & TEA575X_WREN) ? 0 : STR_WREN | STR_DATA;
> >
> > -static int vidioc_s_tuner(struct file *file, void *priv,
> > - struct v4l2_tuner *v)
> > -{
> > - return v->index ? -EINVAL : 0;
> > + outb(bits, fmr2->io);
> > }
> >
> > -static int vidioc_s_frequency(struct file *file, void *priv,
> > - struct v4l2_frequency *f)
> > +static u8 fmr2_tea575x_get_pins(struct snd_tea575x *tea)
> > {
> > - struct fmr2 *fmr2 = video_drvdata(file);
> > + struct fmr2 *fmr2 = tea->private_data;
> > + u8 bits = inb(fmr2->io);
> >
> > - if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO)
> > - return -EINVAL;
> > - if (f->frequency < RSF16_MINFREQ ||
> > - f->frequency > RSF16_MAXFREQ)
> > - return -EINVAL;
> > - /* rounding in steps of 200 to match the freq
> > - that will be used */
> > - fmr2->curfreq = (f->frequency / 200) * 200;
> > -
> > - /* set card freq (if not muted) */
> > - if (fmr2->curvol && !fmr2->mute) {
> > - mutex_lock(&fmr2->lock);
> > - fmr2_setfreq(fmr2);
> > - mutex_unlock(&fmr2->lock);
> > - }
> > - return 0;
> > + return (bits & STR_DATA) ? TEA575X_DATA : 0 |
> > + (bits & STR_MOST) ? TEA575X_MOST : 0;
> > }
> >
> > -static int vidioc_g_frequency(struct file *file, void *priv,
> > - struct v4l2_frequency *f)
> > +static void fmr2_tea575x_set_direction(struct snd_tea575x *tea, bool output)
> > {
> > - struct fmr2 *fmr2 = video_drvdata(file);
> > -
> > - if (f->tuner != 0)
> > - return -EINVAL;
> > - f->type = V4L2_TUNER_RADIO;
> > - f->frequency = fmr2->curfreq;
> > - return 0;
> > }
> >
> > -static int vidioc_queryctrl(struct file *file, void *priv,
> > - struct v4l2_queryctrl *qc)
> > -{
> > - struct fmr2 *fmr2 = video_drvdata(file);
> > +static struct snd_tea575x_ops fmr2_tea_ops = {
> > + .set_pins = fmr2_tea575x_set_pins,
> > + .get_pins = fmr2_tea575x_get_pins,
> > + .set_direction = fmr2_tea575x_set_direction,
> > +};
> >
> > - switch (qc->id) {
> > - case V4L2_CID_AUDIO_MUTE:
> > - return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
> > - case V4L2_CID_AUDIO_VOLUME:
> > - /* Only card_type == 11 implements volume */
> > - if (fmr2->card_type == 11)
> > - return v4l2_ctrl_query_fill(qc, 0, 15, 1, 0);
> > - return v4l2_ctrl_query_fill(qc, 0, 1, 1, 0);
> > - }
> > - return -EINVAL;
> > -}
> > +/* TC9154A/PT2254A volume control */
> >
> > -static int vidioc_g_ctrl(struct file *file, void *priv,
> > - struct v4l2_control *ctrl)
> > -{
> > - struct fmr2 *fmr2 = video_drvdata(file);
> > +/* 18-bit shift register bit definitions */
> > +#define TC9154A_ATT_MAJ_0DB (1 << 0)
> > +#define TC9154A_ATT_MAJ_10DB (1 << 1)
> > +#define TC9154A_ATT_MAJ_20DB (1 << 2)
> > +#define TC9154A_ATT_MAJ_30DB (1 << 3)
> > +#define TC9154A_ATT_MAJ_40DB (1 << 4)
> > +#define TC9154A_ATT_MAJ_50DB (1 << 5)
> > +#define TC9154A_ATT_MAJ_60DB (1 << 6)
> > +
> > +#define TC9154A_ATT_MIN_0DB (1 << 7)
> > +#define TC9154A_ATT_MIN_2DB (1 << 8)
> > +#define TC9154A_ATT_MIN_4DB (1 << 9)
> > +#define TC9154A_ATT_MIN_6DB (1 << 10)
> > +#define TC9154A_ATT_MIN_8DB (1 << 11)
> > +/* bit 12 is ignored */
> > +#define TC9154A_CHANNEL_LEFT (1 << 13)
> > +#define TC9154A_CHANNEL_RIGHT (1 << 14)
> > +/* bits 15, 16, 17 must be 0 */
> > +
> > +#define TC9154A_ATT_MAJ(x) (1 << x)
> > +#define TC9154A_ATT_MIN(x) (1 << (7 + x))
> > +
> > +static void tc9154a_set_pins(struct fmr2 *fmr2, u8 pins)
> > +{
> > + if (!fmr2->tea.mute)
> > + pins |= STR_WREN;
> > +
> > + outb(pins, fmr2->io);
> > +}
> > +
> > +static void tc9154a_set_attenuation(struct fmr2 *fmr2, int att, u32 channel)
> > +{
> > + int i;
> > + u32 reg;
> > + u8 bit;
> > +
> > + reg = TC9154A_ATT_MAJ(att / 10) | TC9154A_ATT_MIN((att % 10) / 2);
> > + reg |= channel;
> > + /* write 18-bit shift register, LSB first */
> > + for (i = 0; i < 18; i++) {
> > + bit = reg & (1 << i) ? PT_DATA : 0;
> > + tc9154a_set_pins(fmr2, bit);
> > + udelay(5);
> > + tc9154a_set_pins(fmr2, bit | PT_CK);
> > + udelay(5);
> > + tc9154a_set_pins(fmr2, bit);
> > + }
> > +
> > + /* latch register data */
> > + udelay(5);
> > + tc9154a_set_pins(fmr2, PT_ST);
> > + udelay(5);
> > + tc9154a_set_pins(fmr2, 0);
> > +}
> > +
> > +static int fmr2_s_ctrl(struct v4l2_ctrl *ctrl)
> > +{
> > + struct snd_tea575x *tea = container_of(ctrl->handler, struct snd_tea575x, ctrl_handler);
> > + struct fmr2 *fmr2 = tea->private_data;
> > + int volume, balance, left, right;
> >
> > switch (ctrl->id) {
> > - case V4L2_CID_AUDIO_MUTE:
> > - ctrl->value = fmr2->mute;
> > - return 0;
> > case V4L2_CID_AUDIO_VOLUME:
> > - ctrl->value = fmr2->curvol;
> > - return 0;
> > - }
> > - return -EINVAL;
> > -}
> > -
> > -static int vidioc_s_ctrl(struct file *file, void *priv,
> > - struct v4l2_control *ctrl)
> > -{
> > - struct fmr2 *fmr2 = video_drvdata(file);
> > -
> > - switch (ctrl->id) {
> > - case V4L2_CID_AUDIO_MUTE:
> > - fmr2->mute = ctrl->value;
> > + volume = ctrl->val;
> > + balance = fmr2->balance->cur.val;
> > break;
> > - case V4L2_CID_AUDIO_VOLUME:
> > - fmr2->curvol = ctrl->value;
> > + case V4L2_CID_AUDIO_BALANCE:
> > + balance = ctrl->val;
> > + volume = fmr2->volume->cur.val;
> > break;
> > default:
> > return -EINVAL;
> > }
> >
> > -#ifdef DEBUG
> > - if (fmr2->curvol && !fmr2->mute)
> > - printk(KERN_DEBUG "unmute\n");
> > - else
> > - printk(KERN_DEBUG "mute\n");
> > -#endif
> > -
> > - mutex_lock(&fmr2->lock);
> > - if (fmr2->curvol && !fmr2->mute) {
> > - fmr2_setvolume(fmr2);
> > - /* Set frequency and unmute card */
> > - fmr2_setfreq(fmr2);
> > - } else
> > - fmr2_mute(fmr2->io);
> > - mutex_unlock(&fmr2->lock);
> > - return 0;
> > -}
> > + left = right = volume;
> > + if (balance < 0)
> > + right = max(0, right + balance);
> > + if (balance > 0)
> > + left = max(0, left - balance);
> >
> > -static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
> > -{
> > - *i = 0;
> > - return 0;
> > -}
> > -
> > -static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
> > -{
> > - return i ? -EINVAL : 0;
> > -}
> > + tc9154a_set_attenuation(fmr2, abs(left - 68), TC9154A_CHANNEL_LEFT);
> > + tc9154a_set_attenuation(fmr2, abs(right - 68), TC9154A_CHANNEL_RIGHT);
> >
> > -static int vidioc_g_audio(struct file *file, void *priv,
> > - struct v4l2_audio *a)
> > -{
> > - a->index = 0;
> > - strlcpy(a->name, "Radio", sizeof(a->name));
> > - a->capability = V4L2_AUDCAP_STEREO;
> > return 0;
> > }
> >
> > -static int vidioc_s_audio(struct file *file, void *priv,
> > - struct v4l2_audio *a)
> > +static const struct v4l2_ctrl_ops fmr2_ctrl_ops = {
> > + .s_ctrl = fmr2_s_ctrl,
> > +};
> > +
> > +static int fmr2_tea_ext_init(struct snd_tea575x *tea)
> > {
> > - return a->index ? -EINVAL : 0;
> > -}
> > + struct fmr2 *fmr2 = tea->private_data;
> >
> > -static const struct v4l2_file_operations fmr2_fops = {
> > - .owner = THIS_MODULE,
> > - .unlocked_ioctl = video_ioctl2,
> > -};
> > + if (inb(fmr2->io) & FMR2_HASVOL) {
> > + fmr2->volume = v4l2_ctrl_new_std(&tea->ctrl_handler, &fmr2_ctrl_ops, V4L2_CID_AUDIO_VOLUME, 0, 68, 2, 56);
> > + fmr2->balance = v4l2_ctrl_new_std(&tea->ctrl_handler, &fmr2_ctrl_ops, V4L2_CID_AUDIO_BALANCE, -68, 68, 2, 0);
> > + if (tea->ctrl_handler.error) {
> > + printk(KERN_ERR "radio-sf16fmr2: can't initialize controls\n");
> > + return tea->ctrl_handler.error;
> > + }
> > + }
> >
> > -static const struct v4l2_ioctl_ops fmr2_ioctl_ops = {
> > - .vidioc_querycap = vidioc_querycap,
> > - .vidioc_g_tuner = vidioc_g_tuner,
> > - .vidioc_s_tuner = vidioc_s_tuner,
> > - .vidioc_g_audio = vidioc_g_audio,
> > - .vidioc_s_audio = vidioc_s_audio,
> > - .vidioc_g_input = vidioc_g_input,
> > - .vidioc_s_input = vidioc_s_input,
> > - .vidioc_g_frequency = vidioc_g_frequency,
> > - .vidioc_s_frequency = vidioc_s_frequency,
> > - .vidioc_queryctrl = vidioc_queryctrl,
> > - .vidioc_g_ctrl = vidioc_g_ctrl,
> > - .vidioc_s_ctrl = vidioc_s_ctrl,
> > -};
> > + return 0;
> > +}
> >
> > static int __init fmr2_init(void)
> > {
> > struct fmr2 *fmr2 = &fmr2_card;
> > - struct v4l2_device *v4l2_dev = &fmr2->v4l2_dev;
> > - int res;
> >
> > - strlcpy(v4l2_dev->name, "sf16fmr2", sizeof(v4l2_dev->name));
> > - fmr2->io = io;
> > - fmr2->stereo = 1;
> > - mutex_init(&fmr2->lock);
> > + fmr2->io = FMR2_PORT;
> >
> > - if (!request_region(fmr2->io, 2, "sf16fmr2")) {
> > - v4l2_err(v4l2_dev, "request_region failed!\n");
> > + if (!request_region(fmr2->io, 2, "SF16-FMR2")) {
> > + printk(KERN_ERR "radio-sf16fmr2: I/O port 0x%x already in use\n", fmr2->io);
> > return -EBUSY;
> > }
> >
> > - res = v4l2_device_register(NULL, v4l2_dev);
> > - if (res < 0) {
> > - release_region(fmr2->io, 2);
> > - v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
> > - return res;
> > - }
> > -
> > - strlcpy(fmr2->vdev.name, v4l2_dev->name, sizeof(fmr2->vdev.name));
> > - fmr2->vdev.v4l2_dev = v4l2_dev;
> > - fmr2->vdev.fops = &fmr2_fops;
> > - fmr2->vdev.ioctl_ops = &fmr2_ioctl_ops;
> > - fmr2->vdev.release = video_device_release_empty;
> > - video_set_drvdata(&fmr2->vdev, fmr2);
> > -
> > - /* mute card - prevents noisy bootups */
> > - fmr2_mute(fmr2->io);
> > - fmr2_product_info(fmr2);
> > + fmr2->tea.private_data = fmr2;
> > + fmr2->tea.ops = &fmr2_tea_ops;
> > + fmr2->tea.ext_init = fmr2_tea_ext_init;
> > + strlcpy(fmr2->tea.card, "SF16-FMR2", sizeof(fmr2->tea.card));
> > + strcpy(fmr2->tea.bus_info, "ISA");
> >
> > - if (video_register_device(&fmr2->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
> > - v4l2_device_unregister(v4l2_dev);
> > + if (snd_tea575x_init(&fmr2->tea)) {
> > + printk(KERN_ERR "radio-sf16fmr2: Unable to detect TEA575x tuner\n");
> > release_region(fmr2->io, 2);
> > - return -EINVAL;
> > + return -ENODEV;
> > }
> >
> > - v4l2_info(v4l2_dev, "SF16FMR2 radio card driver at 0x%x.\n", fmr2->io);
> > - debug_print((KERN_DEBUG "card_type %d\n", fmr2->card_type));
> > + printk(KERN_INFO "radio-sf16fmr2: SF16-FMR2 radio card at 0x%x.\n", fmr2->io);
> > return 0;
> > }
> >
> > @@ -443,22 +211,9 @@ static void __exit fmr2_exit(void)
> > {
> > struct fmr2 *fmr2 = &fmr2_card;
> >
> > - video_unregister_device(&fmr2->vdev);
> > - v4l2_device_unregister(&fmr2->v4l2_dev);
> > + snd_tea575x_exit(&fmr2->tea);
> > release_region(fmr2->io, 2);
> > }
> >
> > module_init(fmr2_init);
> > module_exit(fmr2_exit);
> > -
> > -#ifndef MODULE
> > -
> > -static int __init fmr2_setup_io(char *str)
> > -{
> > - get_option(&str, &io);
> > - return 1;
> > -}
> > -
> > -__setup("sf16fmr2=", fmr2_setup_io);
> > -
> > -#endif
> >
> >
>
> _______________________________________________
> Alsa-devel mailing list
> Alsa-devel@alsa-project.org
> http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
>