ALSA: es1968: add radio (tea575x tuner) support (1872f589) · Commits · e / devices / android_kernel_fairphone_FP3

sound/i2c/other/Makefile

+1 −1

Original line number	Original line	Diff line number	Diff line
	@@ -14,4 +14,4 @@ snd-tea575x-tuner-objs := tea575x-tuner.o
	obj-$(CONFIG_SND_PDAUDIOCF) += snd-ak4117.o		obj-$(CONFIG_SND_PDAUDIOCF) += snd-ak4117.o
	obj-$(CONFIG_SND_ICE1712) += snd-ak4xxx-adda.o		obj-$(CONFIG_SND_ICE1712) += snd-ak4xxx-adda.o
	obj-$(CONFIG_SND_ICE1724) += snd-ak4114.o snd-ak4113.o snd-ak4xxx-adda.o snd-pt2258.o		obj-$(CONFIG_SND_ICE1724) += snd-ak4114.o snd-ak4113.o snd-ak4xxx-adda.o snd-pt2258.o
	obj-$(CONFIG_SND_FM801_TEA575X) += snd-tea575x-tuner.o		obj-$(CONFIG_SND_TEA575X) += snd-tea575x-tuner.o

sound/pci/Kconfig

+11 −3

Original line number	Original line	Diff line number	Diff line
	@@ -534,6 +534,14 @@ config SND_ES1968_INPUT
	If you say N the buttons will directly control the master volume.		If you say N the buttons will directly control the master volume.
	It is recommended to say Y.		It is recommended to say Y.

			config SND_ES1968_RADIO
			bool "Enable TEA5757 radio tuner support for es1968"
			depends on SND_ES1968
			depends on VIDEO_V4L2=y \|\| VIDEO_V4L2=SND_ES1968
			help
			Say Y here to include support for TEA5757 radio tuner integrated on
			some MediaForte cards (e.g. SF64-PCE2).

	config SND_FM801		config SND_FM801
	tristate "ForteMedia FM801"		tristate "ForteMedia FM801"
	select SND_OPL3_LIB		select SND_OPL3_LIB
	@@ -555,10 +563,10 @@ config SND_FM801_TEA575X_BOOL
	FM801 chip with a TEA5757 tuner connected to GPIO1-3 pins (Media		FM801 chip with a TEA5757 tuner connected to GPIO1-3 pins (Media
	Forte SF256-PCS-02) into the snd-fm801 driver.		Forte SF256-PCS-02) into the snd-fm801 driver.

	config SND_FM801_TEA575X		config SND_TEA575X
	tristate		tristate
	depends on SND_FM801_TEA575X_BOOL		depends on SND_FM801_TEA575X_BOOL \|\| SND_ES1968_RADIO
	default SND_FM801		default SND_FM801 \|\| SND_ES1968

	source "sound/pci/hda/Kconfig"		source "sound/pci/hda/Kconfig"

sound/pci/es1968.c

+125 −0

Original line number	Original line	Diff line number	Diff line
	@@ -112,6 +112,10 @@
	#include <sound/ac97_codec.h>		#include <sound/ac97_codec.h>
	#include <sound/initval.h>		#include <sound/initval.h>

			#ifdef CONFIG_SND_ES1968_RADIO
			#include <sound/tea575x-tuner.h>
			#endif

	#define CARD_NAME "ESS Maestro1/2"		#define CARD_NAME "ESS Maestro1/2"
	#define DRIVER_NAME "ES1968"		#define DRIVER_NAME "ES1968"

	@@ -553,6 +557,10 @@ struct es1968 {
	spinlock_t ac97_lock;		spinlock_t ac97_lock;
	struct tasklet_struct hwvol_tq;		struct tasklet_struct hwvol_tq;
	#endif		#endif

			#ifdef CONFIG_SND_ES1968_RADIO
			struct snd_tea575x tea;
			#endif
	};		};

	static irqreturn_t snd_es1968_interrupt(int irq, void *dev_id);		static irqreturn_t snd_es1968_interrupt(int irq, void *dev_id);
	@@ -2571,6 +2579,111 @@ static int __devinit snd_es1968_input_register(struct es1968 *chip)
	}		}
	#endif /* CONFIG_SND_ES1968_INPUT */		#endif /* CONFIG_SND_ES1968_INPUT */

			#ifdef CONFIG_SND_ES1968_RADIO
			#define GPIO_DATA 0x60
			#define IO_MASK 4 /* mask register offset from GPIO_DATA
			bits 1=unmask write to given bit */
			#define IO_DIR 8 /* direction register offset from GPIO_DATA
			bits 0/1=read/write direction */
			/* mask bits for GPIO lines */
			#define STR_DATA 0x0040 /* GPIO6 */
			#define STR_CLK 0x0080 /* GPIO7 */
			#define STR_WREN 0x0100 /* GPIO8 */
			#define STR_MOST 0x0200 /* GPIO9 */

			static void snd_es1968_tea575x_write(struct snd_tea575x *tea, unsigned int val)
			{
			struct es1968 *chip = tea->private_data;
			unsigned long io = chip->io_port + GPIO_DATA;
			u16 l, bits;
			u16 omask, odir;

			omask = inw(io + IO_MASK);
			odir = (inw(io + IO_DIR) & ~STR_DATA) \| (STR_CLK \| STR_WREN);
			outw(odir \| STR_DATA, io + IO_DIR);
			outw(~(STR_DATA \| STR_CLK \| STR_WREN), io + IO_MASK);
			udelay(16);

			for (l = 25; l; l--) {
			bits = ((val >> 18) & STR_DATA) \| STR_WREN;
			val <<= 1; /* shift data */
			outw(bits, io); /* start strobe */
			udelay(2);
			outw(bits \| STR_CLK, io); /* HI level */
			udelay(2);
			outw(bits, io); /* LO level */
			udelay(4);
			}

			if (!tea->mute)
			outw(0, io);

			udelay(4);
			outw(omask, io + IO_MASK);
			outw(odir, io + IO_DIR);
			msleep(125);
			}

			static unsigned int snd_es1968_tea575x_read(struct snd_tea575x *tea)
			{
			struct es1968 *chip = tea->private_data;
			unsigned long io = chip->io_port + GPIO_DATA;
			u16 l, rdata;
			u32 data = 0;
			u16 omask;

			omask = inw(io + IO_MASK);
			outw(~(STR_CLK \| STR_WREN), io + IO_MASK);
			outw(0, io);
			udelay(16);

			for (l = 24; l--;) {
			outw(STR_CLK, io); /* HI state */
			udelay(2);
			if (!l)
			tea->tuned = inw(io) & STR_MOST ? 0 : 1;
			outw(0, io); /* LO state */
			udelay(2);
			data <<= 1; /* shift data */
			rdata = inw(io);
			if (!l)
			tea->stereo = (rdata & STR_MOST) ? 0 : 1;
			else if (l && rdata & STR_DATA)
			data++;
			udelay(2);
			}

			if (tea->mute)
			outw(STR_WREN, io);

			udelay(4);
			outw(omask, io + IO_MASK);

			return data & 0x3ffe;
			}

			static void snd_es1968_tea575x_mute(struct snd_tea575x *tea, unsigned int mute)
			{
			struct es1968 *chip = tea->private_data;
			unsigned long io = chip->io_port + GPIO_DATA;
			u16 omask;

			omask = inw(io + IO_MASK);
			outw(~STR_WREN, io + IO_MASK);
			tea->mute = mute;
			outw(tea->mute ? STR_WREN : 0, io);
			udelay(4);
			outw(omask, io + IO_MASK);
			msleep(125);
			}

			static struct snd_tea575x_ops snd_es1968_tea_ops = {
			.write = snd_es1968_tea575x_write,
			.read = snd_es1968_tea575x_read,
			.mute = snd_es1968_tea575x_mute,
			};
			#endif

	static int snd_es1968_free(struct es1968 *chip)		static int snd_es1968_free(struct es1968 *chip)
	{		{
	#ifdef CONFIG_SND_ES1968_INPUT		#ifdef CONFIG_SND_ES1968_INPUT
	@@ -2585,6 +2698,10 @@ static int snd_es1968_free(struct es1968 *chip)
	outw(0, chip->io_port + ESM_PORT_HOST_IRQ); /* disable IRQ */		outw(0, chip->io_port + ESM_PORT_HOST_IRQ); /* disable IRQ */
	}		}

			#ifdef CONFIG_SND_ES1968_RADIO
			snd_tea575x_exit(&chip->tea);
			#endif

	if (chip->irq >= 0)		if (chip->irq >= 0)
	free_irq(chip->irq, chip);		free_irq(chip->irq, chip);
	snd_es1968_free_gameport(chip);		snd_es1968_free_gameport(chip);
	@@ -2723,6 +2840,14 @@ static int __devinit snd_es1968_create(struct snd_card *card,

	snd_card_set_dev(card, &pci->dev);		snd_card_set_dev(card, &pci->dev);

			#ifdef CONFIG_SND_ES1968_RADIO
			chip->tea.card = card;
			chip->tea.freq_fixup = 10700;
			chip->tea.private_data = chip;
			chip->tea.ops = &snd_es1968_tea_ops;
			snd_tea575x_init(&chip->tea);
			#endif

	*chip_ret = chip;		*chip_ret = chip;

	return 0;		return 0;