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authorOndrej Zary <linux@rainbow-software.org>2011-05-10 23:24:15 +0200
committerTakashi Iwai <tiwai@suse.de>2011-05-11 10:52:24 +0200
commitd7ba858a7f7a95d1617756a83ff0717767f624fd (patch)
treee33938c95874948dc4e68bc5646ddd3cd6f4f84c /sound
parent938a1566b162aa485acd8dea2ebd92d92dfa0a45 (diff)
ALSA: fm801: implement TEA575x tuner autodetection
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>
Diffstat (limited to 'sound')
-rw-r--r--sound/pci/fm801.c33
1 files changed, 22 insertions, 11 deletions
diff --git a/sound/pci/fm801.c b/sound/pci/fm801.c
index 1db5ead62a9..5aa3fd6f25f 100644
--- a/sound/pci/fm801.c
+++ b/sound/pci/fm801.c
@@ -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;