path: root/sound/pci/oxygen/xonar_wm87x6.c

/*
 * card driver for models with WM8776/WM8766 DACs (Xonar DS)
 *
 * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
 *
 *
 *  This driver is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License, version 2.
 *
 *  This driver is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this driver; if not, see <http://www.gnu.org/licenses/>.
 */

/*
 * Xonar DS
 * --------
 *
 * CMI8788:
 *
 * SPI 0 -> WM8766 (surround, center/LFE, back)
 * SPI 1 -> WM8776 (front, input)
 *
 * GPIO 4 <- headphone detect
 * GPIO 6 -> route input jack to input 1/2 (1/0)
 * GPIO 7 -> enable output to speakers
 * GPIO 8 -> enable output to speakers
 */

#include <linux/pci.h>
#include <linux/delay.h>
#include <sound/control.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/tlv.h>
#include "xonar.h"
#include "wm8776.h"
#include "wm8766.h"

#define GPIO_DS_HP_DETECT	0x0010
#define GPIO_DS_INPUT_ROUTE	0x0040
#define GPIO_DS_OUTPUT_ENABLE	0x0180

#define LC_CONTROL_LIMITER	0x40000000
#define LC_CONTROL_ALC		0x20000000

struct xonar_wm87x6 {
	struct xonar_generic generic;
	u16 wm8776_regs[0x17];
	u16 wm8766_regs[0x10];
	struct snd_kcontrol *lc_controls[13];
};

static void wm8776_write(struct oxygen *chip,
			 unsigned int reg, unsigned int value)
{
	struct xonar_wm87x6 *data = chip->model_data;

	oxygen_write_spi(chip, OXYGEN_SPI_TRIGGER |
			 OXYGEN_SPI_DATA_LENGTH_2 |
			 OXYGEN_SPI_CLOCK_160 |
			 (1 << OXYGEN_SPI_CODEC_SHIFT) |
			 OXYGEN_SPI_CEN_LATCH_CLOCK_LO,
			 (reg << 9) | value);
	if (reg < ARRAY_SIZE(data->wm8776_regs)) {
		if (reg >= WM8776_HPLVOL || reg <= WM8776_DACMASTER)
			value &= ~WM8776_UPDATE;
		data->wm8776_regs[reg] = value;
	}
}

static void wm8776_write_cached(struct oxygen *chip,
				unsigned int reg, unsigned int value)
{
	struct xonar_wm87x6 *data = chip->model_data;

	if (reg >= ARRAY_SIZE(data->wm8776_regs) ||
	    value != data->wm8776_regs[reg])
		wm8776_write(chip, reg, value);
}

static void wm8766_write(struct oxygen *chip,
			 unsigned int reg, unsigned int value)
{
	struct xonar_wm87x6 *data = chip->model_data;

	oxygen_write_spi(chip, OXYGEN_SPI_TRIGGER |
			 OXYGEN_SPI_DATA_LENGTH_2 |
			 OXYGEN_SPI_CLOCK_160 |
			 (0 << OXYGEN_SPI_CODEC_SHIFT) |
			 OXYGEN_SPI_CEN_LATCH_CLOCK_LO,
			 (reg << 9) | value);
	if (reg < ARRAY_SIZE(data->wm8766_regs))
		data->wm8766_regs[reg] = value;
}

static void wm8766_write_cached(struct oxygen *chip,
				unsigned int reg, unsigned int value)
{
	struct xonar_wm87x6 *data = chip->model_data;

	if (reg >= ARRAY_SIZE(data->wm8766_regs) ||
	    value != data->wm8766_regs[reg]) {
		if ((reg >= WM8766_LDA1 && reg <= WM8766_RDA1) ||
		    (reg >= WM8766_LDA2 && reg <= WM8766_MASTDA))
			value &= ~WM8766_UPDATE;
		wm8766_write(chip, reg, value);
	}
}

static void wm8776_registers_init(struct oxygen *chip)
{
	struct xonar_wm87x6 *data = chip->model_data;

	wm8776_write(chip, WM8776_RESET, 0);
	wm8776_write(chip, WM8776_DACCTRL1, WM8776_DZCEN |
		     WM8776_PL_LEFT_LEFT | WM8776_PL_RIGHT_RIGHT);
	wm8776_write(chip, WM8776_DACMUTE, chip->dac_mute ? WM8776_DMUTE : 0);
	wm8776_write(chip, WM8776_DACIFCTRL,
		     WM8776_DACFMT_LJUST | WM8776_DACWL_24);
	wm8776_write(chip, WM8776_ADCIFCTRL,
		     data->wm8776_regs[WM8776_ADCIFCTRL]);
	wm8776_write(chip, WM8776_MSTRCTRL, data->wm8776_regs[WM8776_MSTRCTRL]);
	wm8776_write(chip, WM8776_PWRDOWN, data->wm8776_regs[WM8776_PWRDOWN]);
	wm8776_write(chip, WM8776_HPLVOL, data->wm8776_regs[WM8776_HPLVOL]);
	wm8776_write(chip, WM8776_HPRVOL, data->wm8776_regs[WM8776_HPRVOL] |
		     WM8776_UPDATE);
	wm8776_write(chip, WM8776_ADCLVOL, data->wm8776_regs[WM8776_ADCLVOL]);
	wm8776_write(chip, WM8776_ADCRVOL, data->wm8776_regs[WM8776_ADCRVOL]);
	wm8776_write(chip<