include/sound/ak4113.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 #ifndef __SOUND_AK4113_H
   3 #define __SOUND_AK4113_H
   4
   5 /*
   6  *  Routines for Asahi Kasei AK4113
   7  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>,
   8  *  Copyright (c) by Pavel Hofman <pavel.hofman@ivitera.com>,
   9  */
  10
  11 /* AK4113 registers */
  12 /* power down */
  13 #define AK4113_REG_PWRDN        0x00
  14 /* format control */
  15 #define AK4113_REG_FORMAT       0x01
  16 /* input/output control */
  17 #define AK4113_REG_IO0          0x02
  18 /* input/output control */
  19 #define AK4113_REG_IO1          0x03
  20 /* interrupt0 mask */
  21 #define AK4113_REG_INT0_MASK    0x04
  22 /* interrupt1 mask */
  23 #define AK4113_REG_INT1_MASK    0x05
  24 /* DAT mask & DTS select */
  25 #define AK4113_REG_DATDTS       0x06
  26 /* receiver status 0 */
  27 #define AK4113_REG_RCS0         0x07
  28 /* receiver status 1 */
  29 #define AK4113_REG_RCS1         0x08
  30 /* receiver status 2 */
  31 #define AK4113_REG_RCS2         0x09
  32 /* RX channel status byte 0 */
  33 #define AK4113_REG_RXCSB0       0x0a
  34 /* RX channel status byte 1 */
  35 #define AK4113_REG_RXCSB1       0x0b
  36 /* RX channel status byte 2 */
  37 #define AK4113_REG_RXCSB2       0x0c
  38 /* RX channel status byte 3 */
  39 #define AK4113_REG_RXCSB3       0x0d
  40 /* RX channel status byte 4 */
  41 #define AK4113_REG_RXCSB4       0x0e
  42 /* burst preamble Pc byte 0 */
  43 #define AK4113_REG_Pc0          0x0f
  44 /* burst preamble Pc byte 1 */
  45 #define AK4113_REG_Pc1          0x10
  46 /* burst preamble Pd byte 0 */
  47 #define AK4113_REG_Pd0          0x11
  48 /* burst preamble Pd byte 1 */
  49 #define AK4113_REG_Pd1          0x12
  50 /* Q-subcode address + control */
  51 #define AK4113_REG_QSUB_ADDR    0x13
  52 /* Q-subcode track */
  53 #define AK4113_REG_QSUB_TRACK   0x14
  54 /* Q-subcode index */
  55 #define AK4113_REG_QSUB_INDEX   0x15
  56 /* Q-subcode minute */
  57 #define AK4113_REG_QSUB_MINUTE  0x16
  58 /* Q-subcode second */
  59 #define AK4113_REG_QSUB_SECOND  0x17
  60 /* Q-subcode frame */
  61 #define AK4113_REG_QSUB_FRAME   0x18
  62 /* Q-subcode zero */
  63 #define AK4113_REG_QSUB_ZERO    0x19
  64 /* Q-subcode absolute minute */
  65 #define AK4113_REG_QSUB_ABSMIN  0x1a
  66 /* Q-subcode absolute second */
  67 #define AK4113_REG_QSUB_ABSSEC  0x1b
  68 /* Q-subcode absolute frame */
  69 #define AK4113_REG_QSUB_ABSFRM  0x1c
  70
  71 /* sizes */
  72 #define AK4113_REG_RXCSB_SIZE   ((AK4113_REG_RXCSB4-AK4113_REG_RXCSB0)+1)
  73 #define AK4113_REG_QSUB_SIZE    ((AK4113_REG_QSUB_ABSFRM-AK4113_REG_QSUB_ADDR)\
  74                 +1)
  75
  76 #define AK4113_WRITABLE_REGS    (AK4113_REG_DATDTS + 1)
  77
  78 /* AK4113_REG_PWRDN bits */
  79 /* Channel Status Select */
  80 #define AK4113_CS12             (1<<7)
  81 /* Block Start & C/U Output Mode */
  82 #define AK4113_BCU              (1<<6)
  83 /* Master Clock Operation Select */
  84 #define AK4113_CM1              (1<<5)
  85 /* Master Clock Operation Select */
  86 #define AK4113_CM0              (1<<4)
  87 /* Master Clock Frequency Select */
  88 #define AK4113_OCKS1            (1<<3)
  89 /* Master Clock Frequency Select */
  90 #define AK4113_OCKS0            (1<<2)
  91 /* 0 = power down, 1 = normal operation */
  92 #define AK4113_PWN              (1<<1)
  93 /* 0 = reset & initialize (except thisregister), 1 = normal operation */
  94 #define AK4113_RST              (1<<0)
  95
  96 /* AK4113_REQ_FORMAT bits */
  97 /* V/TX Output select: 0 = Validity Flag Output, 1 = TX */
  98 #define AK4113_VTX              (1<<7)
  99 /* Audio Data Control */
 100 #define AK4113_DIF2             (1<<6)
 101 /* Audio Data Control */
 102 #define AK4113_DIF1             (1<<5)
 103 /* Audio Data Control */
 104 #define AK4113_DIF0             (1<<4)
 105 /* Deemphasis Autodetect Enable (1 = enable) */
 106 #define AK4113_DEAU             (1<<3)
 107 /* 32kHz-48kHz Deemphasis Control */
 108 #define AK4113_DEM1             (1<<2)
 109 /* 32kHz-48kHz Deemphasis Control */
 110 #define AK4113_DEM0             (1<<1)
 111 #define AK4113_DEM_OFF          (AK4113_DEM0)
 112 #define AK4113_DEM_44KHZ        (0)
 113 #define AK4113_DEM_48KHZ        (AK4113_DEM1)
 114 #define AK4113_DEM_32KHZ        (AK4113_DEM0|AK4113_DEM1)
 115 /* STDO: 16-bit, right justified */
 116 #define AK4113_DIF_16R          (0)
 117 /* STDO: 18-bit, right justified */
 118 #define AK4113_DIF_18R          (AK4113_DIF0)
 119 /* STDO: 20-bit, right justified */
 120 #define AK4113_DIF_20R          (AK4113_DIF1)
 121 /* STDO: 24-bit, right justified */
 122 #define AK4113_DIF_24R          (AK4113_DIF1|AK4113_DIF0)
 123 /* STDO: 24-bit, left justified */
 124 #define AK4113_DIF_24L          (AK4113_DIF2)
 125 /* STDO: I2S */
 126 #define AK4113_DIF_24I2S        (AK4113_DIF2|AK4113_DIF0)
 127 /* STDO: 24-bit, left justified; LRCLK, BICK = Input */
 128 #define AK4113_DIF_I24L         (AK4113_DIF2|AK4113_DIF1)
 129 /* STDO: I2S;  LRCLK, BICK = Input */
 130 #define AK4113_DIF_I24I2S       (AK4113_DIF2|AK4113_DIF1|AK4113_DIF0)
 131
 132 /* AK4113_REG_IO0 */
 133 /* XTL1=0,XTL0=0 -> 11.2896Mhz; XTL1=0,XTL0=1 -> 12.288Mhz */
 134 #define AK4113_XTL1             (1<<6)
 135 /* XTL1=1,XTL0=0 -> 24.576Mhz; XTL1=1,XTL0=1 -> use channel status */
 136 #define AK4113_XTL0             (1<<5)
 137 /* Block Start Signal Output: 0 = U-bit, 1 = C-bit (req. BCU = 1) */
 138 #define AK4113_UCE              (1<<4)
 139 /* TX Output Enable (1 = enable) */
 140 #define AK4113_TXE              (1<<3)
 141 /* Output Through Data Selector for TX pin */
 142 #define AK4113_OPS2             (1<<2)
 143 /* Output Through Data Selector for TX pin */
 144 #define AK4113_OPS1             (1<<1)
 145 /* Output Through Data Selector for TX pin */
 146 #define AK4113_OPS0             (1<<0)
 147 /* 11.2896 MHz ref. Xtal freq. */
 148 #define AK4113_XTL_11_2896M     (0)
 149 /* 12.288 MHz ref. Xtal freq. */
 150 #define AK4113_XTL_12_288M      (AK4113_XTL0)
 151 /* 24.576 MHz ref. Xtal freq. */
 152 #define AK4113_XTL_24_576M      (AK4113_XTL1)
 153
 154 /* AK4113_REG_IO1 */
 155 /* Interrupt 0 pin Hold */
 156 #define AK4113_EFH1             (1<<7)
 157 /* Interrupt 0 pin Hold */
 158 #define AK4113_EFH0             (1<<6)
 159 #define AK4113_EFH_512LRCLK     (0)
 160 #define AK4113_EFH_1024LRCLK    (AK4113_EFH0)
 161 #define AK4113_EFH_2048LRCLK    (AK4113_EFH1)
 162 #define AK4113_EFH_4096LRCLK    (AK4113_EFH1|AK4113_EFH0)
 163 /* PLL Lock Time: 0 = 384/fs, 1 = 1/fs */
 164 #define AK4113_FAST             (1<<5)
 165 /* MCKO2 Output Select: 0 = CMx/OCKSx, 1 = Xtal */
 166 #define AK4113_XMCK             (1<<4)
 167 /* MCKO2 Output Freq. Select: 0 = x1, 1 = x0.5  (req. XMCK = 1) */
 168 #define AK4113_DIV              (1<<3)
 169 /* Input Recovery Data Select */
 170 #define AK4113_IPS2             (1<<2)
 171 /* Input Recovery Data Select */
 172 #define AK4113_IPS1             (1<<1)
 173 /* Input Recovery Data Select */
 174 #define AK4113_IPS0             (1<<0)
 175 #define AK4113_IPS(x)           ((x)&7)
 176
 177 /* AK4113_REG_INT0_MASK && AK4113_REG_INT1_MASK*/
 178 /* mask enable for QINT bit */
 179 #define AK4113_MQI              (1<<7)
 180 /* mask enable for AUTO bit */
 181 #define AK4113_MAUT             (1<<6)
 182 /* mask enable for CINT bit */
 183 #define AK4113_MCIT             (1<<5)
 184 /* mask enable for UNLOCK bit */
 185 #define AK4113_MULK             (1<<4)
 186 /* mask enable for V bit */
 187 #define AK4113_V                (1<<3)
 188 /* mask enable for STC bit */
 189 #define AK4113_STC              (1<<2)
 190 /* mask enable for AUDN bit */
 191 #define AK4113_MAN              (1<<1)
 192 /* mask enable for PAR bit */
 193 #define AK4113_MPR              (1<<0)
 194
 195 /* AK4113_REG_DATDTS */
 196 /* DAT Start ID Counter */
 197 #define AK4113_DCNT             (1<<4)
 198 /* DTS-CD 16-bit Sync Word Detect */
 199 #define AK4113_DTS16            (1<<3)
 200 /* DTS-CD 14-bit Sync Word Detect */
 201 #define AK4113_DTS14            (1<<2)
 202 /* mask enable for DAT bit (if 1, no INT1 effect */
 203 #define AK4113_MDAT1            (1<<1)
 204 /* mask enable for DAT bit (if 1, no INT0 effect */
 205 #define AK4113_MDAT0            (1<<0)
 206
 207 /* AK4113_REG_RCS0 */
 208 /* Q-subcode buffer interrupt, 0 = no change, 1 = changed */
 209 #define AK4113_QINT             (1<<7)
 210 /* Non-PCM or DTS stream auto detection, 0 = no detect, 1 = detect */
 211 #define AK4113_AUTO             (1<<6)
 212 /* channel status buffer interrupt, 0 = no change, 1 = change */
 213 #define AK4113_CINT             (1<<5)
 214 /* PLL lock status, 0 = lock, 1 = unlock */
 215 #define AK4113_UNLCK            (1<<4)
 216 /* Validity bit, 0 = valid, 1 = invalid */
 217 #define AK4113_V                (1<<3)
 218 /* sampling frequency or Pre-emphasis change, 0 = no detect, 1 = detect */
 219 #define AK4113_STC              (1<<2)
 220 /* audio bit output, 0 = audio, 1 = non-audio */
 221 #define AK4113_AUDION           (1<<1)
 222 /* parity error or biphase error status, 0 = no error, 1 = error */
 223 #define AK4113_PAR              (1<<0)
 224
 225 /* AK4113_REG_RCS1 */
 226 /* sampling frequency detection */
 227 #define AK4113_FS3              (1<<7)
 228 #define AK4113_FS2              (1<<6)
 229 #define AK4113_FS1              (1<<5)
 230 #define AK4113_FS0              (1<<4)
 231 /* Pre-emphasis detect, 0 = OFF, 1 = ON */
 232 #define AK4113_PEM              (1<<3)
 233 /* DAT Start ID Detect, 0 = no detect, 1 = detect */
 234 #define AK4113_DAT              (1<<2)
 235 /* DTS-CD bit audio stream detect, 0 = no detect, 1 = detect */
 236 #define AK4113_DTSCD            (1<<1)
 237 /* Non-PCM bit stream detection, 0 = no detect, 1 = detect */
 238 #define AK4113_NPCM             (1<<0)
 239 #define AK4113_FS_8000HZ        (AK4113_FS3|AK4113_FS0)
 240 #define AK4113_FS_11025HZ       (AK4113_FS2|AK4113_FS0)
 241 #define AK4113_FS_16000HZ       (AK4113_FS2|AK4113_FS1|AK4113_FS0)
 242 #define AK4113_FS_22050HZ       (AK4113_FS2)
 243 #define AK4113_FS_24000HZ       (AK4113_FS2|AK4113_FS1)
 244 #define AK4113_FS_32000HZ       (AK4113_FS1|AK4113_FS0)
 245 #define AK4113_FS_44100HZ       (0)
 246 #define AK4113_FS_48000HZ       (AK4113_FS1)
 247 #define AK4113_FS_64000HZ       (AK4113_FS3|AK4113_FS1|AK4113_FS0)
 248 #define AK4113_FS_88200HZ       (AK4113_FS3)
 249 #define AK4113_FS_96000HZ       (AK4113_FS3|AK4113_FS1)
 250 #define AK4113_FS_176400HZ      (AK4113_FS3|AK4113_FS2)
 251 #define AK4113_FS_192000HZ      (AK4113_FS3|AK4113_FS2|AK4113_FS1)
 252
 253 /* AK4113_REG_RCS2 */
 254 /* CRC for Q-subcode, 0 = no error, 1 = error */
 255 #define AK4113_QCRC             (1<<1)
 256 /* CRC for channel status, 0 = no error, 1 = error */
 257 #define AK4113_CCRC             (1<<0)
 258
 259 /* flags for snd_ak4113_check_rate_and_errors() */
 260 #define AK4113_CHECK_NO_STAT    (1<<0)  /* no statistics */
 261 #define AK4113_CHECK_NO_RATE    (1<<1)  /* no rate check */
 262
 263 #define AK4113_CONTROLS         13
 264
 265 typedef void (ak4113_write_t)(void *private_data, unsigned char addr,
 266                 unsigned char data);
 267 typedef unsigned char (ak4113_read_t)(void *private_data, unsigned char addr);
 268
 269 enum {
 270         AK4113_PARITY_ERRORS,
 271         AK4113_V_BIT_ERRORS,
 272         AK4113_QCRC_ERRORS,
 273         AK4113_CCRC_ERRORS,
 274         AK4113_NUM_ERRORS
 275 };
 276
 277 struct ak4113 {
 278         struct snd_card *card;
 279         ak4113_write_t *write;
 280         ak4113_read_t *read;
 281         void *private_data;
 282         atomic_t wq_processing;
 283         struct mutex reinit_mutex;
 284         spinlock_t lock;
 285         unsigned char regmap[AK4113_WRITABLE_REGS];
 286         struct snd_kcontrol *kctls[AK4113_CONTROLS];
 287         struct snd_pcm_substream *substream;
 288         unsigned long errors[AK4113_NUM_ERRORS];
 289         unsigned char rcs0;
 290         unsigned char rcs1;
 291         unsigned char rcs2;
 292         struct delayed_work work;
 293         unsigned int check_flags;
 294         void *change_callback_private;
 295         void (*change_callback)(struct ak4113 *ak4113, unsigned char c0,
 296                         unsigned char c1);
 297 };
 298
 299 int snd_ak4113_create(struct snd_card *card, ak4113_read_t *read,
 300                 ak4113_write_t *write,
 301                 const unsigned char *pgm,
 302                 void *private_data, struct ak4113 **r_ak4113);
 303 void snd_ak4113_reg_write(struct ak4113 *ak4113, unsigned char reg,
 304                 unsigned char mask, unsigned char val);
 305 void snd_ak4113_reinit(struct ak4113 *ak4113);
 306 int snd_ak4113_build(struct ak4113 *ak4113,
 307                 struct snd_pcm_substream *capture_substream);
 308 int snd_ak4113_external_rate(struct ak4113 *ak4113);
 309 int snd_ak4113_check_rate_and_errors(struct ak4113 *ak4113, unsigned int flags);
 310
 311 #ifdef CONFIG_PM
 312 void snd_ak4113_suspend(struct ak4113 *chip);
 313 void snd_ak4113_resume(struct ak4113 *chip);
 314 #else
 315 static inline void snd_ak4113_suspend(struct ak4113 *chip) {}
 316 static inline void snd_ak4113_resume(struct ak4113 *chip) {}
 317 #endif
 318
 319 #endif /* __SOUND_AK4113_H */
 320