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ad1848.h
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ad1848.h
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#ifndef __SOUND_AD1848_H
#define __SOUND_AD1848_H
/*
* Copyright (c) by Jaroslav Kysela <perex@perex.cz>
* Definitions for AD1847/AD1848/CS4248 chips
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include "pcm.h"
#include <linux/interrupt.h>
/* IO ports */
#define AD1848P( chip, x ) ( (chip) -> port + c_d_c_AD1848##x )
#define c_d_c_AD1848REGSEL 0
#define c_d_c_AD1848REG 1
#define c_d_c_AD1848STATUS 2
#define c_d_c_AD1848PIO 3
/* codec registers */
#define AD1848_LEFT_INPUT 0x00 /* left input control */
#define AD1848_RIGHT_INPUT 0x01 /* right input control */
#define AD1848_AUX1_LEFT_INPUT 0x02 /* left AUX1 input control */
#define AD1848_AUX1_RIGHT_INPUT 0x03 /* right AUX1 input control */
#define AD1848_AUX2_LEFT_INPUT 0x04 /* left AUX2 input control */
#define AD1848_AUX2_RIGHT_INPUT 0x05 /* right AUX2 input control */
#define AD1848_LEFT_OUTPUT 0x06 /* left output control register */
#define AD1848_RIGHT_OUTPUT 0x07 /* right output control register */
#define AD1848_DATA_FORMAT 0x08 /* clock and data format - playback/capture - bits 7-0 MCE */
#define AD1848_IFACE_CTRL 0x09 /* interface control - bits 7-2 MCE */
#define AD1848_PIN_CTRL 0x0a /* pin control */
#define AD1848_TEST_INIT 0x0b /* test and initialization */
#define AD1848_MISC_INFO 0x0c /* miscellaneaous information */
#define AD1848_LOOPBACK 0x0d /* loopback control */
#define AD1848_DATA_UPR_CNT 0x0e /* playback/capture upper base count */
#define AD1848_DATA_LWR_CNT 0x0f /* playback/capture lower base count */
/* definitions for codec register select port - CODECP( REGSEL ) */
#define AD1848_INIT 0x80 /* CODEC is initializing */
#define AD1848_MCE 0x40 /* mode change enable */
#define AD1848_TRD 0x20 /* transfer request disable */
/* definitions for codec status register - CODECP( STATUS ) */
#define AD1848_GLOBALIRQ 0x01 /* IRQ is active */
/* definitions for AD1848_LEFT_INPUT and AD1848_RIGHT_INPUT registers */
#define AD1848_ENABLE_MIC_GAIN 0x20
#define AD1848_MIXS_LINE1 0x00
#define AD1848_MIXS_AUX1 0x40
#define AD1848_MIXS_LINE2 0x80
#define AD1848_MIXS_ALL 0xc0
/* definitions for clock and data format register - AD1848_PLAYBK_FORMAT */
#define AD1848_LINEAR_8 0x00 /* 8-bit unsigned data */
#define AD1848_ALAW_8 0x60 /* 8-bit A-law companded */
#define AD1848_ULAW_8 0x20 /* 8-bit U-law companded */
#define AD1848_LINEAR_16 0x40 /* 16-bit twos complement data - little endian */
#define AD1848_STEREO 0x10 /* stereo mode */
/* bits 3-1 define frequency divisor */
#define AD1848_XTAL1 0x00 /* 24.576 crystal */
#define AD1848_XTAL2 0x01 /* 16.9344 crystal */
/* definitions for interface control register - AD1848_IFACE_CTRL */
#define AD1848_CAPTURE_PIO 0x80 /* capture PIO enable */
#define AD1848_PLAYBACK_PIO 0x40 /* playback PIO enable */
#define AD1848_CALIB_MODE 0x18 /* calibration mode bits */
#define AD1848_AUTOCALIB 0x08 /* auto calibrate */
#define AD1848_SINGLE_DMA 0x04 /* use single DMA channel */
#define AD1848_CAPTURE_ENABLE 0x02 /* capture enable */
#define AD1848_PLAYBACK_ENABLE 0x01 /* playback enable */
/* definitions for pin control register - AD1848_PIN_CTRL */
#define AD1848_IRQ_ENABLE 0x02 /* enable IRQ */
#define AD1848_XCTL1 0x40 /* external control #1 */
#define AD1848_XCTL0 0x80 /* external control #0 */
/* definitions for test and init register - AD1848_TEST_INIT */
#define AD1848_CALIB_IN_PROGRESS 0x20 /* auto calibrate in progress */
#define AD1848_DMA_REQUEST 0x10 /* DMA request in progress */
/* defines for codec.mode */
#define AD1848_MODE_NONE 0x0000
#define AD1848_MODE_PLAY 0x0001
#define AD1848_MODE_CAPTURE 0x0002
#define AD1848_MODE_TIMER 0x0004
#define AD1848_MODE_OPEN (AD1848_MODE_PLAY|AD1848_MODE_CAPTURE|AD1848_MODE_TIMER)
#define AD1848_MODE_RUNNING 0x0010
/* defines for codec.hardware */
#define AD1848_HW_DETECT 0x0000 /* let AD1848 driver detect chip */
#define AD1848_HW_AD1847 0x0001 /* AD1847 chip */
#define AD1848_HW_AD1848 0x0002 /* AD1848 chip */
#define AD1848_HW_CS4248 0x0003 /* CS4248 chip */
#define AD1848_HW_CMI8330 0x0004 /* CMI8330 chip */
#define AD1848_HW_THINKPAD 0x0005 /* Thinkpad 360/750/755 */
/* IBM Thinkpad specific stuff */
#define AD1848_THINKPAD_CTL_PORT1 0x15e8
#define AD1848_THINKPAD_CTL_PORT2 0x15e9
#define AD1848_THINKPAD_CS4248_ENABLE_BIT 0x02
struct snd_ad1848 {
unsigned long port; /* i/o port */
struct resource *res_port;
int irq; /* IRQ line */
int dma; /* data DMA */
unsigned short version; /* version of CODEC chip */
unsigned short mode; /* see to AD1848_MODE_XXXX */
unsigned short hardware; /* see to AD1848_HW_XXXX */
unsigned short single_dma:1; /* forced single DMA mode (GUS 16-bit daughter board) or dma1 == dma2 */
struct snd_pcm *pcm;
struct snd_pcm_substream *playback_substream;
struct snd_pcm_substream *capture_substream;
struct snd_card *card;
unsigned char image[32]; /* SGalaxy needs an access to extended registers */
int mce_bit;
int calibrate_mute;
int dma_size;
int thinkpad_flag; /* Thinkpad CS4248 needs some extra help */
#ifdef CONFIG_PM
void (*suspend)(struct snd_ad1848 *chip);
void (*resume)(struct snd_ad1848 *chip);
#endif
spinlock_t reg_lock;
};
/* exported functions */
void snd_ad1848_out(struct snd_ad1848 *chip, unsigned char reg, unsigned char value);
int snd_ad1848_create(struct snd_card *card,
unsigned long port,
int irq, int dma,
unsigned short hardware,
struct snd_ad1848 ** chip);
int snd_ad1848_pcm(struct snd_ad1848 * chip, int device, struct snd_pcm **rpcm);
const struct snd_pcm_ops *snd_ad1848_get_pcm_ops(int direction);
int snd_ad1848_mixer(struct snd_ad1848 * chip);
/* exported mixer stuffs */
enum { AD1848_MIX_SINGLE, AD1848_MIX_DOUBLE, AD1848_MIX_CAPTURE };
#define AD1848_MIXVAL_SINGLE(reg, shift, mask, invert) \
((reg) | ((shift) << 8) | ((mask) << 16) | ((invert) << 24))
#define AD1848_MIXVAL_DOUBLE(left_reg, right_reg, shift_left, shift_right, mask, invert) \
((left_reg) | ((right_reg) << 8) | ((shift_left) << 16) | ((shift_right) << 19) | ((mask) << 24) | ((invert) << 22))
/* for ease of use */
struct ad1848_mix_elem {
const char *name;
int index;
int type;
unsigned long private_value;
const unsigned int *tlv;
};
#define AD1848_SINGLE(xname, xindex, reg, shift, mask, invert) \
{ .name = xname, \
.index = xindex, \
.type = AD1848_MIX_SINGLE, \
.private_value = AD1848_MIXVAL_SINGLE(reg, shift, mask, invert) }
#define AD1848_SINGLE_TLV(xname, xindex, reg, shift, mask, invert, xtlv) \
{ .name = xname, \
.index = xindex, \
.type = AD1848_MIX_SINGLE, \
.private_value = AD1848_MIXVAL_SINGLE(reg, shift, mask, invert), \
.tlv = xtlv }
#define AD1848_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
{ .name = xname, \
.index = xindex, \
.type = AD1848_MIX_DOUBLE, \
.private_value = AD1848_MIXVAL_DOUBLE(left_reg, right_reg, shift_left, shift_right, mask, invert) }
#define AD1848_DOUBLE_TLV(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert, xtlv) \
{ .name = xname, \
.index = xindex, \
.type = AD1848_MIX_DOUBLE, \
.private_value = AD1848_MIXVAL_DOUBLE(left_reg, right_reg, shift_left, shift_right, mask, invert), \
.tlv = xtlv }
int snd_ad1848_add_ctl_elem(struct snd_ad1848 *chip, const struct ad1848_mix_elem *c);
#endif /* __SOUND_AD1848_H */