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snd-fm801: autodetect SF64-PCR (tuner-only) card

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When primary AC97 is not found, don't fail with tons of AC97 errors.
Assume that the card is SF64-PCR (tuner-only).
This makes the SF64-PCR radio card work "out of the box".

Also fixes a bug that can cause an oops here:
        if (tea575x_tuner > 0 && (tea575x_tuner & 0x000f) < 4) {
when tea575x_tuner == 16, it passes this check and causes problems
a couple lines below:
        chip->tea.ops = &snd_fm801_tea_ops[(tea575x_tuner & 0x000f) - 1];

Tested with SF64-PCR, but I don't have any of those sound or sound+radio cards
to test if I didn't break anything.

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Ondrej Zary 2009-11-27 18:18:33 +01:00 committed by Takashi Iwai
parent 1233faa891
commit fb716c0b7b
1 changed files with 27 additions and 13 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

38
sound/pci/fm801.c
View file

@ -55,7 +55,7 @@ static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card *
* 1 = MediaForte 256-PCS
* 2 = MediaForte 256-PCPR
* 3 = MediaForte 64-PCR
* 16 = setup tuner only (this is additional bit), i.e. SF-64-PCR FM card
* 16 = setup tuner only (this is additional bit), i.e. SF64-PCR FM card
* High 16-bits are video (radio) device number + 1
*/
static int tea575x_tuner[SNDRV_CARDS];
@ -67,7 +67,10 @@ MODULE_PARM_DESC(id, "ID string for the FM801 soundcard.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable FM801 soundcard.");
module_param_array(tea575x_tuner, int, NULL, 0444);
MODULE_PARM_DESC(tea575x_tuner, "Enable TEA575x tuner.");
MODULE_PARM_DESC(tea575x_tuner, "TEA575x tuner access method (1 = SF256-PCS, 2=SF256-PCPR, 3=SF64-PCR, +16=tuner-only).");
#define TUNER_ONLY (1<<4)
#define TUNER_TYPE_MASK (~TUNER_ONLY & 0xFFFF)
/*
* Direct registers
@ -160,7 +163,7 @@ struct fm801 {
unsigned int multichannel: 1, /* multichannel support */
secondary: 1; /* secondary codec */
unsigned char secondary_addr; /* address of the secondary codec */
unsigned int tea575x_tuner; /* tuner flags */
unsigned int tea575x_tuner; /* tuner access method & flags */
unsigned short ply_ctrl; /* playback control */
unsigned short cap_ctrl; /* capture control */
@ -1287,7 +1290,7 @@ static int snd_fm801_chip_init(struct fm801 *chip, int resume)
{
unsigned short cmdw;
if (chip->tea575x_tuner & 0x0010)
if (chip->tea575x_tuner & TUNER_ONLY)
goto __ac97_ok;
/* codec cold reset + AC'97 warm reset */
@ -1296,10 +1299,12 @@ static int snd_fm801_chip_init(struct fm801 *chip, int resume)
udelay(100);
outw(0, FM801_REG(chip, CODEC_CTRL));
if (wait_for_codec(chip, 0, AC97_RESET, msecs_to_jiffies(750)) < 0) {
snd_printk(KERN_ERR "Primary AC'97 codec not found\n");
if (! resume)
return -EIO;
if (wait_for_codec(chip, 0, AC97_RESET, msecs_to_jiffies(750)) < 0)
if (!resume) {
snd_printk(KERN_INFO "Primary AC'97 codec not found, "
"assume SF64-PCR (tuner-only)\n");
chip->tea575x_tuner = 3 | TUNER_ONLY;
goto __ac97_ok;
}
if (chip->multichannel) {
@ -1414,7 +1419,7 @@ static int __devinit snd_fm801_create(struct snd_card *card,
return err;
}
chip->port = pci_resource_start(pci, 0);
if ((tea575x_tuner & 0x0010) == 0) {
if ((tea575x_tuner & TUNER_ONLY) == 0) {
if (request_irq(pci->irq, snd_fm801_interrupt, IRQF_SHARED,
"FM801", chip)) {
snd_printk(KERN_ERR "unable to grab IRQ %d\n", chip->irq);
@ -1429,6 +1434,14 @@ static int __devinit snd_fm801_create(struct snd_card *card,
chip->multichannel = 1;
snd_fm801_chip_init(chip, 0);
/* init might set tuner access method */
tea575x_tuner = chip->tea575x_tuner;
if (chip->irq >= 0 && (tea575x_tuner & TUNER_ONLY)) {
pci_clear_master(pci);
free_irq(chip->irq, chip);
chip->irq = -1;
}
if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
snd_fm801_free(chip);
@ -1438,12 +1451,13 @@ static int __devinit snd_fm801_create(struct snd_card *card,
snd_card_set_dev(card, &pci->dev);
#ifdef TEA575X_RADIO
if (tea575x_tuner > 0 && (tea575x_tuner & 0x000f) < 4) {
if ((tea575x_tuner & TUNER_TYPE_MASK) > 0 &&
(tea575x_tuner & TUNER_TYPE_MASK) < 4) {
chip->tea.dev_nr = tea575x_tuner >> 16;
chip->tea.card = card;
chip->tea.freq_fixup = 10700;
chip->tea.private_data = chip;
chip->tea.ops = &snd_fm801_tea_ops[(tea575x_tuner & 0x000f) - 1];
chip->tea.ops = &snd_fm801_tea_ops[(tea575x_tuner & TUNER_TYPE_MASK) - 1];
snd_tea575x_init(&chip->tea);
}
#endif
@ -1483,7 +1497,7 @@ static int __devinit snd_card_fm801_probe(struct pci_dev *pci,
sprintf(card->longname, "%s at 0x%lx, irq %i",
card->shortname, chip->port, chip->irq);
if (tea575x_tuner[dev] & 0x0010)
if (chip->tea575x_tuner & TUNER_ONLY)
goto __fm801_tuner_only;
if ((err = snd_fm801_pcm(chip, 0, NULL)) < 0) {