ALSA: fm801: implement TEA575x tuner autodetection (d7ba858a) · Commits · 戴 / test

sound/pci/fm801.c

+22 −11

Original line number	Diff line number	Diff line
		@@ -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)
		@@ -1229,13 +1230,23 @@ static int __devinit snd_fm801_create(struct snd_card *card,
		snd_card_set_dev(card, &pci->dev);

		#ifdef TEA575X_RADIO
		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 ((tea575x_tuner & TUNER_TYPE_MASK) > 0 &&
		(tea575x_tuner & TUNER_TYPE_MASK) < 4) {
		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

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