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ALSA: fm801: implement TEA575x tuner autodetection

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Autodetect TEA575x tuner connection type during init. This allows tuner to
work out-of-the box.

tea575x_tuner module parameter remains functional to force tuner type.

Tested with SF256-PCP and SF64-PCR.

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Ondrej Zary 2011-05-10 23:24:15 +02:00 committed by Takashi Iwai
parent 938a1566b1
commit d7ba858a7f
1 changed files with 22 additions and 11 deletions
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33
sound/pci/fm801.c
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@ -53,7 +53,7 @@ static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card *
/*
* Enable TEA575x tuner
* 1 = MediaForte 256-PCS
* 2 = MediaForte 256-PCPR
* 2 = MediaForte 256-PCP
* 3 = MediaForte 64-PCR
* 16 = setup tuner only (this is additional bit), i.e. SF64-PCR FM card
* High 16-bits are video (radio) device number + 1
@ -67,7 +67,7 @@ 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, "TEA575x tuner access method (1 = SF256-PCS, 2=SF256-PCPR, 3=SF64-PCR, +16=tuner-only).");
MODULE_PARM_DESC(tea575x_tuner, "TEA575x tuner access method (0 = auto, 1 = SF256-PCS, 2=SF256-PCP, 3=SF64-PCR, 8=disable, +16=tuner-only).");
#define TUNER_ONLY (1<<4)
#define TUNER_TYPE_MASK (~TUNER_ONLY & 0xFFFF)
@ -720,12 +720,13 @@ static int __devinit snd_fm801_pcm(struct fm801 *chip, int device, struct snd_pc
/* GPIO to TEA575x maps */
struct snd_fm801_tea575x_gpio {
u8 data, clk, wren, most;
char *name;
};
static struct snd_fm801_tea575x_gpio snd_fm801_tea575x_gpios[] = {
{ .data = 1, .clk = 3, .wren = 2, .most = 0 }, /* SF256-PCS */
{ .data = 1, .clk = 0, .wren = 2, .most = 3 }, /* SF256-PCP */
{ .data = 2, .clk = 0, .wren = 1, .most = 3 }, /* SF64-PCR */
{ .data = 1, .clk = 3, .wren = 2, .most = 0, .name = "SF256-PCS" },
{ .data = 1, .clk = 0, .wren = 2, .most = 3, .name = "SF256-PCP" },
{ .data = 2, .clk = 0, .wren = 1, .most = 3, .name = "SF64-PCR" },
};
static void snd_fm801_tea575x_set_pins(struct snd_tea575x *tea, u8 pins)
@ -1229,14 +1230,24 @@ static int __devinit snd_fm801_create(struct snd_card *card,
snd_card_set_dev(card, &pci->dev);
#ifdef TEA575X_RADIO
chip->tea.card = card;
chip->tea.freq_fixup = 10700;
chip->tea.private_data = chip;
chip->tea.ops = &snd_fm801_tea_ops;
if ((tea575x_tuner & TUNER_TYPE_MASK) > 0 &&
(tea575x_tuner & TUNER_TYPE_MASK) < 4) {
chip->tea.card = card;
chip->tea.freq_fixup = 10700;
chip->tea.private_data = chip;
chip->tea.ops = &snd_fm801_tea_ops;
snd_tea575x_init(&chip->tea);
}
if (snd_tea575x_init(&chip->tea))
snd_printk(KERN_ERR "TEA575x radio not found\n");
} else if ((tea575x_tuner & TUNER_TYPE_MASK) == 0)
/* autodetect tuner connection */
for (tea575x_tuner = 1; tea575x_tuner <= 3; tea575x_tuner++) {
chip->tea575x_tuner = tea575x_tuner;
if (!snd_tea575x_init(&chip->tea)) {
snd_printk(KERN_INFO "detected TEA575x radio type %s\n",
snd_fm801_tea575x_gpios[tea575x_tuner - 1].name);
break;
}
}
#endif
*rchip = chip;