1 | /* SPDX-License-Identifier: GPL-2.0-or-later */
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2 | #ifndef __SOUND_AK4114_H
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3 | #define __SOUND_AK4114_H
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4 |
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5 | /*
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6 | * Routines for Asahi Kasei AK4114
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7 | * Copyright (c) by Jaroslav Kysela <perex@perex.cz>,
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8 | */
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9 |
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10 | /* AK4114 registers */
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11 | #define AK4114_REG_PWRDN 0x00 /* power down */
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12 | #define AK4114_REG_FORMAT 0x01 /* format control */
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13 | #define AK4114_REG_IO0 0x02 /* input/output control */
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14 | #define AK4114_REG_IO1 0x03 /* input/output control */
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15 | #define AK4114_REG_INT0_MASK 0x04 /* interrupt0 mask */
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16 | #define AK4114_REG_INT1_MASK 0x05 /* interrupt1 mask */
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17 | #define AK4114_REG_RCS0 0x06 /* receiver status 0 */
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18 | #define AK4114_REG_RCS1 0x07 /* receiver status 1 */
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19 | #define AK4114_REG_RXCSB0 0x08 /* RX channel status byte 0 */
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20 | #define AK4114_REG_RXCSB1 0x09 /* RX channel status byte 1 */
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21 | #define AK4114_REG_RXCSB2 0x0a /* RX channel status byte 2 */
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22 | #define AK4114_REG_RXCSB3 0x0b /* RX channel status byte 3 */
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23 | #define AK4114_REG_RXCSB4 0x0c /* RX channel status byte 4 */
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24 | #define AK4114_REG_TXCSB0 0x0d /* TX channel status byte 0 */
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25 | #define AK4114_REG_TXCSB1 0x0e /* TX channel status byte 1 */
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26 | #define AK4114_REG_TXCSB2 0x0f /* TX channel status byte 2 */
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27 | #define AK4114_REG_TXCSB3 0x10 /* TX channel status byte 3 */
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28 | #define AK4114_REG_TXCSB4 0x11 /* TX channel status byte 4 */
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29 | #define AK4114_REG_Pc0 0x12 /* burst preamble Pc byte 0 */
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30 | #define AK4114_REG_Pc1 0x13 /* burst preamble Pc byte 1 */
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31 | #define AK4114_REG_Pd0 0x14 /* burst preamble Pd byte 0 */
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32 | #define AK4114_REG_Pd1 0x15 /* burst preamble Pd byte 1 */
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33 | #define AK4114_REG_QSUB_ADDR 0x16 /* Q-subcode address + control */
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34 | #define AK4114_REG_QSUB_TRACK 0x17 /* Q-subcode track */
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35 | #define AK4114_REG_QSUB_INDEX 0x18 /* Q-subcode index */
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36 | #define AK4114_REG_QSUB_MINUTE 0x19 /* Q-subcode minute */
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37 | #define AK4114_REG_QSUB_SECOND 0x1a /* Q-subcode second */
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38 | #define AK4114_REG_QSUB_FRAME 0x1b /* Q-subcode frame */
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39 | #define AK4114_REG_QSUB_ZERO 0x1c /* Q-subcode zero */
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40 | #define AK4114_REG_QSUB_ABSMIN 0x1d /* Q-subcode absolute minute */
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41 | #define AK4114_REG_QSUB_ABSSEC 0x1e /* Q-subcode absolute second */
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42 | #define AK4114_REG_QSUB_ABSFRM 0x1f /* Q-subcode absolute frame */
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43 |
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44 | /* sizes */
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45 | #define AK4114_REG_RXCSB_SIZE ((AK4114_REG_RXCSB4-AK4114_REG_RXCSB0)+1)
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46 | #define AK4114_REG_TXCSB_SIZE ((AK4114_REG_TXCSB4-AK4114_REG_TXCSB0)+1)
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47 | #define AK4114_REG_QSUB_SIZE ((AK4114_REG_QSUB_ABSFRM-AK4114_REG_QSUB_ADDR)+1)
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48 |
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49 | /* AK4117_REG_PWRDN bits */
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50 | #define AK4114_CS12 (1<<7) /* Channel Status Select */
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51 | #define AK4114_BCU (1<<6) /* Block Start & C/U Output Mode */
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52 | #define AK4114_CM1 (1<<5) /* Master Clock Operation Select */
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53 | #define AK4114_CM0 (1<<4) /* Master Clock Operation Select */
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54 | #define AK4114_OCKS1 (1<<3) /* Master Clock Frequency Select */
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55 | #define AK4114_OCKS0 (1<<2) /* Master Clock Frequency Select */
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56 | #define AK4114_PWN (1<<1) /* 0 = power down, 1 = normal operation */
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57 | #define AK4114_RST (1<<0) /* 0 = reset & initialize (except this register), 1 = normal operation */
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58 |
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59 | /* AK4114_REQ_FORMAT bits */
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60 | #define AK4114_MONO (1<<7) /* Double Sampling Frequency Mode: 0 = stereo, 1 = mono */
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61 | #define AK4114_DIF2 (1<<6) /* Audio Data Control */
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62 | #define AK4114_DIF1 (1<<5) /* Audio Data Control */
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63 | #define AK4114_DIF0 (1<<4) /* Audio Data Control */
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64 | #define AK4114_DIF_16R (0) /* STDO: 16-bit, right justified */
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65 | #define AK4114_DIF_18R (AK4114_DIF0) /* STDO: 18-bit, right justified */
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66 | #define AK4114_DIF_20R (AK4114_DIF1) /* STDO: 20-bit, right justified */
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67 | #define AK4114_DIF_24R (AK4114_DIF1|AK4114_DIF0) /* STDO: 24-bit, right justified */
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68 | #define AK4114_DIF_24L (AK4114_DIF2) /* STDO: 24-bit, left justified */
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69 | #define AK4114_DIF_24I2S (AK4114_DIF2|AK4114_DIF0) /* STDO: I2S */
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70 | #define AK4114_DIF_I24L (AK4114_DIF2|AK4114_DIF1) /* STDO: 24-bit, left justified; LRCLK, BICK = Input */
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71 | #define AK4114_DIF_I24I2S (AK4114_DIF2|AK4114_DIF1|AK4114_DIF0) /* STDO: I2S; LRCLK, BICK = Input */
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72 | #define AK4114_DEAU (1<<3) /* Deemphasis Autodetect Enable (1 = enable) */
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73 | #define AK4114_DEM1 (1<<2) /* 32kHz-48kHz Deemphasis Control */
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74 | #define AK4114_DEM0 (1<<1) /* 32kHz-48kHz Deemphasis Control */
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75 | #define AK4114_DEM_44KHZ (0)
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76 | #define AK4114_DEM_48KHZ (AK4114_DEM1)
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77 | #define AK4114_DEM_32KHZ (AK4114_DEM0|AK4114_DEM1)
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78 | #define AK4114_DEM_96KHZ (AK4114_DEM1) /* DFS must be set */
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79 | #define AK4114_DFS (1<<0) /* 96kHz Deemphasis Control */
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80 |
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81 | /* AK4114_REG_IO0 */
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82 | #define AK4114_TX1E (1<<7) /* TX1 Output Enable (1 = enable) */
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83 | #define AK4114_OPS12 (1<<6) /* Output Data Selector for TX1 pin */
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84 | #define AK4114_OPS11 (1<<5) /* Output Data Selector for TX1 pin */
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85 | #define AK4114_OPS10 (1<<4) /* Output Data Selector for TX1 pin */
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86 | #define AK4114_TX0E (1<<3) /* TX0 Output Enable (1 = enable) */
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87 | #define AK4114_OPS02 (1<<2) /* Output Data Selector for TX0 pin */
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88 | #define AK4114_OPS01 (1<<1) /* Output Data Selector for TX0 pin */
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89 | #define AK4114_OPS00 (1<<0) /* Output Data Selector for TX0 pin */
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90 |
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91 | /* AK4114_REG_IO1 */
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92 | #define AK4114_EFH1 (1<<7) /* Interrupt 0 pin Hold */
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93 | #define AK4114_EFH0 (1<<6) /* Interrupt 0 pin Hold */
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94 | #define AK4114_EFH_512 (0)
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95 | #define AK4114_EFH_1024 (AK4114_EFH0)
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96 | #define AK4114_EFH_2048 (AK4114_EFH1)
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97 | #define AK4114_EFH_4096 (AK4114_EFH1|AK4114_EFH0)
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98 | #define AK4114_UDIT (1<<5) /* U-bit Control for DIT (0 = fixed '0', 1 = recovered) */
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99 | #define AK4114_TLR (1<<4) /* Double Sampling Frequency Select for DIT (0 = L channel, 1 = R channel) */
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100 | #define AK4114_DIT (1<<3) /* TX1 out: 0 = Through Data (RX data), 1 = Transmit Data (DAUX data) */
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101 | #define AK4114_IPS2 (1<<2) /* Input Recovery Data Select */
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102 | #define AK4114_IPS1 (1<<1) /* Input Recovery Data Select */
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103 | #define AK4114_IPS0 (1<<0) /* Input Recovery Data Select */
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104 | #define AK4114_IPS(x) ((x)&7)
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105 |
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106 | /* AK4114_REG_INT0_MASK && AK4114_REG_INT1_MASK*/
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107 | #define AK4117_MQI (1<<7) /* mask enable for QINT bit */
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108 | #define AK4117_MAT (1<<6) /* mask enable for AUTO bit */
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109 | #define AK4117_MCI (1<<5) /* mask enable for CINT bit */
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110 | #define AK4117_MUL (1<<4) /* mask enable for UNLOCK bit */
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111 | #define AK4117_MDTS (1<<3) /* mask enable for DTSCD bit */
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112 | #define AK4117_MPE (1<<2) /* mask enable for PEM bit */
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113 | #define AK4117_MAN (1<<1) /* mask enable for AUDN bit */
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114 | #define AK4117_MPR (1<<0) /* mask enable for PAR bit */
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115 |
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116 | /* AK4114_REG_RCS0 */
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117 | #define AK4114_QINT (1<<7) /* Q-subcode buffer interrupt, 0 = no change, 1 = changed */
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118 | #define AK4114_AUTO (1<<6) /* Non-PCM or DTS stream auto detection, 0 = no detect, 1 = detect */
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119 | #define AK4114_CINT (1<<5) /* channel status buffer interrupt, 0 = no change, 1 = change */
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120 | #define AK4114_UNLCK (1<<4) /* PLL lock status, 0 = lock, 1 = unlock */
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121 | #define AK4114_DTSCD (1<<3) /* DTS-CD Detect, 0 = No detect, 1 = Detect */
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122 | #define AK4114_PEM (1<<2) /* Pre-emphasis Detect, 0 = OFF, 1 = ON */
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123 | #define AK4114_AUDION (1<<1) /* audio bit output, 0 = audio, 1 = non-audio */
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124 | #define AK4114_PAR (1<<0) /* parity error or biphase error status, 0 = no error, 1 = error */
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125 |
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126 | /* AK4114_REG_RCS1 */
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127 | #define AK4114_FS3 (1<<7) /* sampling frequency detection */
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128 | #define AK4114_FS2 (1<<6)
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129 | #define AK4114_FS1 (1<<5)
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130 | #define AK4114_FS0 (1<<4)
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131 | #define AK4114_FS_44100HZ (0)
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132 | #define AK4114_FS_48000HZ (AK4114_FS1)
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133 | #define AK4114_FS_32000HZ (AK4114_FS1|AK4114_FS0)
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134 | #define AK4114_FS_88200HZ (AK4114_FS3)
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135 | #define AK4114_FS_96000HZ (AK4114_FS3|AK4114_FS1)
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136 | #define AK4114_FS_176400HZ (AK4114_FS3|AK4114_FS2)
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137 | #define AK4114_FS_192000HZ (AK4114_FS3|AK4114_FS2|AK4114_FS1)
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138 | #define AK4114_V (1<<3) /* Validity of Channel Status, 0 = Valid, 1 = Invalid */
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139 | #define AK4114_QCRC (1<<1) /* CRC for Q-subcode, 0 = no error, 1 = error */
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140 | #define AK4114_CCRC (1<<0) /* CRC for channel status, 0 = no error, 1 = error */
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141 |
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142 | /* flags for snd_ak4114_check_rate_and_errors() */
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143 | #define AK4114_CHECK_NO_STAT (1<<0) /* no statistics */
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144 | #define AK4114_CHECK_NO_RATE (1<<1) /* no rate check */
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145 |
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146 | #define AK4114_CONTROLS 15
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147 |
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148 | typedef void (ak4114_write_t)(void *private_data, unsigned char addr, unsigned char data);
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149 | typedef unsigned char (ak4114_read_t)(void *private_data, unsigned char addr);
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150 |
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151 | enum {
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152 | AK4114_PARITY_ERRORS,
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153 | AK4114_V_BIT_ERRORS,
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154 | AK4114_QCRC_ERRORS,
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155 | AK4114_CCRC_ERRORS,
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156 | AK4114_NUM_ERRORS
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157 | };
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158 |
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159 | struct ak4114 {
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160 | struct snd_card *card;
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161 | ak4114_write_t * write;
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162 | ak4114_read_t * read;
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163 | void * private_data;
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164 | atomic_t wq_processing;
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165 | struct mutex reinit_mutex;
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166 | spinlock_t lock;
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167 | unsigned char regmap[6];
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168 | unsigned char txcsb[5];
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169 | struct snd_kcontrol *kctls[AK4114_CONTROLS];
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170 | struct snd_pcm_substream *playback_substream;
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171 | struct snd_pcm_substream *capture_substream;
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172 | unsigned long errors[AK4114_NUM_ERRORS];
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173 | unsigned char rcs0;
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174 | unsigned char rcs1;
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175 | struct delayed_work work;
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176 | unsigned int check_flags;
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177 | void *change_callback_private;
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178 | void (*change_callback)(struct ak4114 *ak4114, unsigned char c0, unsigned char c1);
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179 | };
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180 |
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181 | int snd_ak4114_create(struct snd_card *card,
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182 | ak4114_read_t *read, ak4114_write_t *write,
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183 | const unsigned char pgm[6], const unsigned char txcsb[5],
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184 | void *private_data, struct ak4114 **r_ak4114);
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185 | void snd_ak4114_reg_write(struct ak4114 *ak4114, unsigned char reg, unsigned char mask, unsigned char val);
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186 | void snd_ak4114_reinit(struct ak4114 *ak4114);
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187 | int snd_ak4114_build(struct ak4114 *ak4114,
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188 | struct snd_pcm_substream *playback_substream,
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189 | struct snd_pcm_substream *capture_substream);
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190 | int snd_ak4114_external_rate(struct ak4114 *ak4114);
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191 | int snd_ak4114_check_rate_and_errors(struct ak4114 *ak4114, unsigned int flags);
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192 |
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193 | #ifdef CONFIG_PM
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194 | void snd_ak4114_suspend(struct ak4114 *chip);
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195 | void snd_ak4114_resume(struct ak4114 *chip);
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196 | #else
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197 | static inline void snd_ak4114_suspend(struct ak4114 *chip) {}
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198 | static inline void snd_ak4114_resume(struct ak4114 *chip) {}
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199 | #endif
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200 |
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201 | #endif /* __SOUND_AK4114_H */
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202 |
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