From d7ba858a7f7a95d1617756a83ff0717767f624fd Mon Sep 17 00:00:00 2001 From: Ondrej Zary Date: Tue, 10 May 2011 23:24:15 +0200 Subject: [PATCH] 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 Signed-off-by: Takashi Iwai --- sound/pci/fm801.c | 33 ++++++++++++++++++++++----------- 1 file changed, 22 insertions(+), 11 deletions(-) diff --git a/sound/pci/fm801.c b/sound/pci/fm801.c index 1db5ead62a98..5aa3fd6f25f7 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; -- 2.20.1