include/sound/ad1848.h

   1 #ifndef __SOUND_AD1848_H
   2 #define __SOUND_AD1848_H
   3
   4 /*
   5  *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
   6  *  Definitions for AD1847/AD1848/CS4248 chips
   7  *
   8  *
   9  *   This program is free software; you can redistribute it and/or modify
  10  *   it under the terms of the GNU General Public License as published by
  11  *   the Free Software Foundation; either version 2 of the License, or
  12  *   (at your option) any later version.
  13  *
  14  *   This program is distributed in the hope that it will be useful,
  15  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *   GNU General Public License for more details.
  18  *
  19  *   You should have received a copy of the GNU General Public License
  20  *   along with this program; if not, write to the Free Software
  21  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  22  *
  23  */
  24
  25 #include "pcm.h"
  26 #include <linux/interrupt.h>
  27
  28 /* IO ports */
  29
  30 #define AD1848P( codec, x ) ( (chip) -> port + c_d_c_AD1848##x )
  31
  32 #define c_d_c_AD1848REGSEL      0
  33 #define c_d_c_AD1848REG         1
  34 #define c_d_c_AD1848STATUS      2
  35 #define c_d_c_AD1848PIO         3
  36
  37 /* codec registers */
  38
  39 #define AD1848_LEFT_INPUT       0x00    /* left input control */
  40 #define AD1848_RIGHT_INPUT      0x01    /* right input control */
  41 #define AD1848_AUX1_LEFT_INPUT  0x02    /* left AUX1 input control */
  42 #define AD1848_AUX1_RIGHT_INPUT 0x03    /* right AUX1 input control */
  43 #define AD1848_AUX2_LEFT_INPUT  0x04    /* left AUX2 input control */
  44 #define AD1848_AUX2_RIGHT_INPUT 0x05    /* right AUX2 input control */
  45 #define AD1848_LEFT_OUTPUT      0x06    /* left output control register */
  46 #define AD1848_RIGHT_OUTPUT     0x07    /* right output control register */
  47 #define AD1848_DATA_FORMAT      0x08    /* clock and data format - playback/capture - bits 7-0 MCE */
  48 #define AD1848_IFACE_CTRL       0x09    /* interface control - bits 7-2 MCE */
  49 #define AD1848_PIN_CTRL         0x0a    /* pin control */
  50 #define AD1848_TEST_INIT        0x0b    /* test and initialization */
  51 #define AD1848_MISC_INFO        0x0c    /* miscellaneaous information */
  52 #define AD1848_LOOPBACK         0x0d    /* loopback control */
  53 #define AD1848_DATA_UPR_CNT     0x0e    /* playback/capture upper base count */
  54 #define AD1848_DATA_LWR_CNT     0x0f    /* playback/capture lower base count */
  55
  56 /* definitions for codec register select port - CODECP( REGSEL ) */
  57
  58 #define AD1848_INIT             0x80    /* CODEC is initializing */
  59 #define AD1848_MCE              0x40    /* mode change enable */
  60 #define AD1848_TRD              0x20    /* transfer request disable */
  61
  62 /* definitions for codec status register - CODECP( STATUS ) */
  63
  64 #define AD1848_GLOBALIRQ        0x01    /* IRQ is active */
  65
  66 /* definitions for AD1848_LEFT_INPUT and AD1848_RIGHT_INPUT registers */
  67
  68 #define AD1848_ENABLE_MIC_GAIN  0x20
  69
  70 #define AD1848_MIXS_LINE1       0x00
  71 #define AD1848_MIXS_AUX1        0x40
  72 #define AD1848_MIXS_LINE2       0x80
  73 #define AD1848_MIXS_ALL         0xc0
  74
  75 /* definitions for clock and data format register - AD1848_PLAYBK_FORMAT */
  76
  77 #define AD1848_LINEAR_8         0x00    /* 8-bit unsigned data */
  78 #define AD1848_ALAW_8           0x60    /* 8-bit A-law companded */
  79 #define AD1848_ULAW_8           0x20    /* 8-bit U-law companded */
  80 #define AD1848_LINEAR_16        0x40    /* 16-bit twos complement data - little endian */
  81 #define AD1848_STEREO           0x10    /* stereo mode */
  82 /* bits 3-1 define frequency divisor */
  83 #define AD1848_XTAL1            0x00    /* 24.576 crystal */
  84 #define AD1848_XTAL2            0x01    /* 16.9344 crystal */
  85
  86 /* definitions for interface control register - AD1848_IFACE_CTRL */
  87
  88 #define AD1848_CAPTURE_PIO      0x80    /* capture PIO enable */
  89 #define AD1848_PLAYBACK_PIO     0x40    /* playback PIO enable */
  90 #define AD1848_CALIB_MODE       0x18    /* calibration mode bits */
  91 #define AD1848_AUTOCALIB        0x08    /* auto calibrate */
  92 #define AD1848_SINGLE_DMA       0x04    /* use single DMA channel */
  93 #define AD1848_CAPTURE_ENABLE   0x02    /* capture enable */
  94 #define AD1848_PLAYBACK_ENABLE  0x01    /* playback enable */
  95
  96 /* definitions for pin control register - AD1848_PIN_CTRL */
  97
  98 #define AD1848_IRQ_ENABLE       0x02    /* enable IRQ */
  99 #define AD1848_XCTL1            0x40    /* external control #1 */
 100 #define AD1848_XCTL0            0x80    /* external control #0 */
 101
 102 /* definitions for test and init register - AD1848_TEST_INIT */
 103
 104 #define AD1848_CALIB_IN_PROGRESS 0x20   /* auto calibrate in progress */
 105 #define AD1848_DMA_REQUEST      0x10    /* DMA request in progress */
 106
 107 /* defines for codec.mode */
 108
 109 #define AD1848_MODE_NONE        0x0000
 110 #define AD1848_MODE_PLAY        0x0001
 111 #define AD1848_MODE_CAPTURE     0x0002
 112 #define AD1848_MODE_TIMER       0x0004
 113 #define AD1848_MODE_OPEN        (AD1848_MODE_PLAY|AD1848_MODE_CAPTURE|AD1848_MODE_TIMER)
 114 #define AD1848_MODE_RUNNING     0x0010
 115
 116 /* defines for codec.hardware */
 117
 118 #define AD1848_HW_DETECT        0x0000  /* let AD1848 driver detect chip */
 119 #define AD1848_HW_AD1847        0x0001  /* AD1847 chip */
 120 #define AD1848_HW_AD1848        0x0002  /* AD1848 chip */
 121 #define AD1848_HW_CS4248        0x0003  /* CS4248 chip */
 122 #define AD1848_HW_CMI8330       0x0004  /* CMI8330 chip */
 123 #define AD1848_HW_THINKPAD      0x0005  /* Thinkpad 360/750/755 */
 124
 125 /* IBM Thinkpad specific stuff */
 126 #define AD1848_THINKPAD_CTL_PORT1               0x15e8
 127 #define AD1848_THINKPAD_CTL_PORT2               0x15e9
 128 #define AD1848_THINKPAD_CS4248_ENABLE_BIT       0x02
 129
 130 struct _snd_ad1848 {
 131         unsigned long port;             /* i/o port */
 132         struct resource *res_port;
 133         int irq;                        /* IRQ line */
 134         int dma;                        /* data DMA */
 135         unsigned short version;         /* version of CODEC chip */
 136         unsigned short mode;            /* see to AD1848_MODE_XXXX */
 137         unsigned short hardware;        /* see to AD1848_HW_XXXX */
 138         unsigned short single_dma:1;    /* forced single DMA mode (GUS 16-bit daughter board) or dma1 == dma2 */
 139
 140         snd_pcm_t *pcm;
 141         snd_pcm_substream_t *playback_substream;
 142         snd_pcm_substream_t *capture_substream;
 143         snd_card_t *card;
 144
 145         unsigned char image[32];        /* SGalaxy needs an access to extended registers */
 146         int mce_bit;
 147         int calibrate_mute;
 148         int dma_size;
 149         int thinkpad_flag;              /* Thinkpad CS4248 needs some extra help */
 150
 151         spinlock_t reg_lock;
 152         struct semaphore open_mutex;
 153 };
 154
 155 typedef struct _snd_ad1848 ad1848_t;
 156
 157 /* exported functions */
 158
 159 void snd_ad1848_out(ad1848_t *chip, unsigned char reg, unsigned char value);
 160
 161 int snd_ad1848_create(snd_card_t * card,
 162                       unsigned long port,
 163                       int irq, int dma,
 164                       unsigned short hardware,
 165                       ad1848_t ** chip);
 166
 167 int snd_ad1848_pcm(ad1848_t * chip, int device, snd_pcm_t **rpcm);
 168 const snd_pcm_ops_t *snd_ad1848_get_pcm_ops(int direction);
 169 int snd_ad1848_mixer(ad1848_t * chip);
 170
 171 /* exported mixer stuffs */
 172 enum { AD1848_MIX_SINGLE, AD1848_MIX_DOUBLE, AD1848_MIX_CAPTURE };
 173
 174 #define AD1848_MIXVAL_SINGLE(reg, shift, mask, invert) \
 175         ((reg) | ((shift) << 8) | ((mask) << 16) | ((invert) << 24))
 176 #define AD1848_MIXVAL_DOUBLE(left_reg, right_reg, shift_left, shift_right, mask, invert) \
 177         ((left_reg) | ((right_reg) << 8) | ((shift_left) << 16) | ((shift_right) << 19) | ((mask) << 24) | ((invert) << 22))
 178
 179 int snd_ad1848_add_ctl(ad1848_t *chip, const char *name, int index, int type, unsigned long value);
 180
 181 /* for ease of use */
 182 struct ad1848_mix_elem {
 183         const char *name;
 184         int index;
 185         int type;
 186         unsigned long private_value;
 187 };
 188
 189 #define AD1848_SINGLE(xname, xindex, reg, shift, mask, invert) \
 190 { .name = xname, \
 191   .index = xindex, \
 192   .type = AD1848_MIX_SINGLE, \
 193   .private_value = AD1848_MIXVAL_SINGLE(reg, shift, mask, invert) }
 194
 195 #define AD1848_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
 196 { .name = xname, \
 197   .index = xindex, \
 198   .type = AD1848_MIX_DOUBLE, \
 199   .private_value = AD1848_MIXVAL_DOUBLE(left_reg, right_reg, shift_left, shift_right, mask, invert) }
 200
 201 static inline int snd_ad1848_add_ctl_elem(ad1848_t *chip, const struct ad1848_mix_elem *c)
 202 {
 203         return snd_ad1848_add_ctl(chip, c->name, c->index, c->type, c->private_value);
 204 }
 205
 206 #endif /* __SOUND_AD1848_H */