path: root/sound/pci/oxygen/xonar_pcm179x.c

/*
 * card driver for models with PCM1796 DACs (Xonar D2/D2X/HDAV1.3/ST/STX)
 *
 * 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 D2/D2X
 * ------------
 *
 * CMI8788:
 *
 *   SPI 0 -> 1st PCM1796 (front)
 *   SPI 1 -> 2nd PCM1796 (surround)
 *   SPI 2 -> 3rd PCM1796 (center/LFE)
 *   SPI 4 -> 4th PCM1796 (back)
 *
 *   GPIO 2 -> M0 of CS5381
 *   GPIO 3 -> M1 of CS5381
 *   GPIO 5 <- external power present (D2X only)
 *   GPIO 7 -> ALT
 *   GPIO 8 -> enable output to speakers
 *
 * CM9780:
 *
 *   LINE_OUT -> input of ADC
 *
 *   AUX_IN   <- aux
 *   VIDEO_IN <- CD
 *   FMIC_IN  <- mic
 *
 *   GPO 0 -> route line-in (0) or AC97 output (1) to CS5381 input
 */

/*
 * Xonar HDAV1.3 (Deluxe)
 * ----------------------
 *
 * CMI8788:
 *
 *   I²C <-> PCM1796 (addr 1001100) (front)
 *
 *   GPI 0 <- external power present
 *
 *   GPIO 0 -> enable HDMI (0) or speaker (1) output
 *   GPIO 2 -> M0 of CS5381
 *   GPIO 3 -> M1 of CS5381
 *   GPIO 4 <- daughterboard detection
 *   GPIO 5 <- daughterboard detection
 *   GPIO 6 -> ?
 *   GPIO 7 -> ?
 *   GPIO 8 -> route input jack to line-in (0) or mic-in (1)
 *
 *   UART <-> HDMI controller
 *
 * CM9780:
 *
 *   LINE_OUT -> input of ADC
 *
 *   AUX_IN <- aux
 *   CD_IN  <- CD
 *   MIC_IN <- mic
 *
 *   GPO 0 -> route line-in (0) or AC97 output (1) to CS5381 input
 *
 * no daughterboard
 * ----------------
 *
 *   GPIO 4 <- 1
 *
 * H6 daughterboard
 * ----------------
 *
 *   GPIO 4 <- 0
 *   GPIO 5 <- 0
 *
 *   I²C <-> PCM1796 (addr 1001101) (surround)
 *       <-> PCM1796 (addr 1001110) (center/LFE)
 *       <-> PCM1796 (addr 1001111) (back)
 *
 * unknown daughterboard
 * ---------------------
 *
 *   GPIO 4 <- 0
 *   GPIO 5 <- 1
 *
 *   I²C <-> CS4362A (addr 0011000) (surround, center/LFE, back)
 */

/*
 * Xonar Essence ST (Deluxe)/STX
 * -----------------------------
 *
 * CMI8788:
 *
 *   I²C <-> PCM1792A (addr 1001100)
 *       <-> CS2000 (addr 1001110) (ST only)
 *
 *   ADC1 MCLK -> REF_CLK of CS2000 (ST only)
 *
 *   GPI 0 <- external power present (STX only)
 *
 *   GPIO 0 -> enable output to speakers
 *   GPIO 1 -> route HP to front panel (0) or rear jack (1)
 *   GPIO 2 -> M0 of CS5381
 *   GPIO 3 -> M1 of CS5381
 *   GPIO 4 <- daughterboard detection
 *   GPIO 5 <- daughterboard detection
 *   GPIO 6 -> ?
 *   GPIO 7 -> route output to speaker jacks (0) or HP (1)
 *   GPIO 8 -> route input jack to line-in (0) or mic-in (1)
 *
 * PCM1792A:
 *
 *   SCK <- CLK_OUT of CS2000 (ST only)
 *
 * CM9780:
 *
 *   LINE_OUT -> input of ADC
 *
 *   AUX_IN <- aux
 *   MIC_IN <- mic
 *
 *   GPO 0 -> route line-in (0) or AC97 output (1) to CS5381 input
 *
 * H6 daughterboard
 * ----------------
 *
 * GPIO 4 <- 0
 * GPIO 5 <- 0
 */

/*
 * Xonar Xense
 * -----------
 *
 * CMI8788:
 *
 *   I²C <-> PCM1796 (addr 1001100) (front)
 *       <-> CS4362A (addr 0011000) (surround, center/LFE, back)
 *       <-> CS2000 (addr 1001110)
 *
 *   ADC1 MCLK -> REF_CLK of CS2000
 *
 *   GPI 0 <- external power present
 *
 *   GPIO 0 -> enable output
 *   GPIO 1 -> route HP to front panel (0) or rear jack (1)
 *   GPIO 2 -> M0 of CS5381
 *   GPIO 3 -> M1 of CS5381
 *   GPIO 4 -> enable output
 *   GPIO 5 -> enable output
 *   GPIO 6 -> ?
 *   GPIO 7 -> route output to HP (0) or speaker (1)
 *   GPIO 8 -> route input jack to mic-in (0) or line-in (1)
 *
 * CM9780:
 *
 *   LINE_OUT -> input of ADC
 *
 *   AUX_IN   <- aux
 *   VIDEO_IN <- ?
 *   FMIC_IN  <- mic
 *
 *   GPO 0 -> route line-in (0) or AC97 output (1) to CS5381 input
 *   GPO 1 -> route mic-in from input jack (0) or front panel header (1)
 */

#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/mutex.h>
#include <sound/ac97_codec.h>
#include <sound/control.h>
#include <sound/core.h>
#include <sound/info.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/tlv.h>
#include "xonar.h"
#include "cm9780.h"
#include "pcm1796.h"
#include "cs2000.h"


#define GPIO_D2X_EXT_POWER	0x0020
#define GPIO_D2_ALT		0x0080
#define GPIO_D2_OUTPUT_ENABLE	0x0100

#define GPI_EXT_POWER		0x01
#define GPIO_INPUT_ROUTE	0x0100

#define GPIO_HDAV_OUTPUT_ENABLE	0x0001
#define GPIO_HDAV_MAGIC		0x00c0

#define GPIO_DB_MASK		0x0030
#define GPIO_DB_H6		0x0000

#define GPIO_ST_OUTPUT_ENABLE	0x0001
#define GPIO_ST_HP_REAR		0x0002
#define GPIO_ST_MAGIC		0x0040
#define GPIO_ST_HP		0x0080

#define I2C_DEVICE_PCM1796(i)	(0x98 + ((i) << 1))	/* 10011, ii, /W=0 */
#define I2C_DEVICE_CS2000	0x9c			/* 100111, 0, /W=0 */

#define PCM1796_REG_BASE	16


struct xonar_pcm179x {
	struct xonar_generic generic;
	unsigned int dacs;
	u8 pcm1796_regs[4][5];
	unsigned int current_rate;
	bool h6;
	bool hp_active;
	s8 hp_gain_offset;
	bool has_cs2000;
	u8 cs2000_regs[0x1f];
	bool broken_i2c;
};

struct xonar_hdav {
	struct xonar_pcm179x pcm179x;
	struct xonar_hdmi hdmi;
};


static inline void pcm1796_write_spi(struct oxygen *chip, unsigned int codec,
				     u8 reg, u8 value)
{
	/* maps ALSA channel pair number to SPI output */
	static const u8 codec_map[4] = {
		0, 1, 2, 4
	};
	oxygen_write_spi(chip, OXYGEN_SPI_TRIGGER  |
			 OXYGEN_SPI_DATA_LENGTH_2 |
			 OXYGEN_SPI_CLOCK_160 |
			 (codec_map[codec] << OXYGEN_SPI_CODEC_SHIFT) |
			 OXYGEN_SPI_CEN_LATCH_CLOCK_HI,
			 (reg << 8) | value);
}

static inline void pcm1796_write_i2c(struct oxygen *chip, unsigned int codec,
				     u8 reg, u8 value)
{
	oxygen_write_i2c(chip, I2C_DEVICE_PCM1796(codec), reg, value);
}

st