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1 /* |
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2 * WM8750 audio CODEC. |
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3 * |
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4 * Copyright (c) 2006 Openedhand Ltd. |
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5 * Written by Andrzej Zaborowski <balrog@zabor.org> |
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6 * |
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7 * This file is licensed under GNU GPL. |
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8 */ |
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9 |
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10 #include "hw.h" |
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11 #include "i2c.h" |
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12 #include "audio/audio.h" |
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13 |
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14 #define IN_PORT_N 3 |
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15 #define OUT_PORT_N 3 |
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16 |
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17 #define CODEC "wm8750" |
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18 |
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19 struct wm_rate_s; |
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20 struct wm8750_s { |
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21 i2c_slave i2c; |
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22 uint8_t i2c_data[2]; |
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23 int i2c_len; |
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24 QEMUSoundCard card; |
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25 SWVoiceIn *adc_voice[IN_PORT_N]; |
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26 SWVoiceOut *dac_voice[OUT_PORT_N]; |
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27 int enable; |
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28 void (*data_req)(void *, int, int); |
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29 void *opaque; |
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30 uint8_t data_in[4096]; |
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31 uint8_t data_out[4096]; |
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32 int idx_in, req_in; |
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33 int idx_out, req_out; |
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34 |
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35 SWVoiceOut **out[2]; |
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36 uint8_t outvol[7], outmute[2]; |
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37 SWVoiceIn **in[2]; |
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38 uint8_t invol[4], inmute[2]; |
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39 |
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40 uint8_t diff[2], pol, ds, monomix[2], alc, mute; |
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41 uint8_t path[4], mpath[2], power, format; |
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42 const struct wm_rate_s *rate; |
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43 int adc_hz, dac_hz, ext_adc_hz, ext_dac_hz, master; |
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44 }; |
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45 |
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46 /* pow(10.0, -i / 20.0) * 255, i = 0..42 */ |
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47 static const uint8_t wm8750_vol_db_table[] = { |
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48 255, 227, 203, 181, 161, 143, 128, 114, 102, 90, 81, 72, 64, 57, 51, 45, |
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49 40, 36, 32, 29, 26, 23, 20, 18, 16, 14, 13, 11, 10, 9, 8, 7, 6, 6, 5, 5, |
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50 4, 4, 3, 3, 3, 2, 2 |
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51 }; |
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52 |
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53 #define WM8750_OUTVOL_TRANSFORM(x) wm8750_vol_db_table[(0x7f - x) / 3] |
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54 #define WM8750_INVOL_TRANSFORM(x) (x << 2) |
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55 |
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56 static inline void wm8750_in_load(struct wm8750_s *s) |
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57 { |
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58 int acquired; |
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59 if (s->idx_in + s->req_in <= sizeof(s->data_in)) |
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60 return; |
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61 s->idx_in = audio_MAX(0, (int) sizeof(s->data_in) - s->req_in); |
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62 acquired = AUD_read(*s->in[0], s->data_in + s->idx_in, |
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63 sizeof(s->data_in) - s->idx_in); |
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64 } |
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65 |
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66 static inline void wm8750_out_flush(struct wm8750_s *s) |
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67 { |
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68 int sent = 0; |
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69 while (sent < s->idx_out) |
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70 sent += AUD_write(*s->out[0], s->data_out + sent, s->idx_out - sent) |
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71 ?: s->idx_out; |
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72 s->idx_out = 0; |
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73 } |
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74 |
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75 static void wm8750_audio_in_cb(void *opaque, int avail_b) |
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76 { |
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77 struct wm8750_s *s = (struct wm8750_s *) opaque; |
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78 s->req_in = avail_b; |
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79 s->data_req(s->opaque, s->req_out >> 2, avail_b >> 2); |
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80 } |
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81 |
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82 static void wm8750_audio_out_cb(void *opaque, int free_b) |
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83 { |
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84 struct wm8750_s *s = (struct wm8750_s *) opaque; |
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85 |
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86 if (s->idx_out >= free_b) { |
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87 s->idx_out = free_b; |
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88 s->req_out = 0; |
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89 wm8750_out_flush(s); |
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90 } else |
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91 s->req_out = free_b - s->idx_out; |
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92 |
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93 s->data_req(s->opaque, s->req_out >> 2, s->req_in >> 2); |
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94 } |
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95 |
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96 struct wm_rate_s { |
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97 int adc; |
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98 int adc_hz; |
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99 int dac; |
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100 int dac_hz; |
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101 }; |
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102 |
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103 static const struct wm_rate_s wm_rate_table[] = { |
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104 { 256, 48000, 256, 48000 }, /* SR: 00000 */ |
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105 { 384, 48000, 384, 48000 }, /* SR: 00001 */ |
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106 { 256, 48000, 1536, 8000 }, /* SR: 00010 */ |
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107 { 384, 48000, 2304, 8000 }, /* SR: 00011 */ |
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108 { 1536, 8000, 256, 48000 }, /* SR: 00100 */ |
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109 { 2304, 8000, 384, 48000 }, /* SR: 00101 */ |
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110 { 1536, 8000, 1536, 8000 }, /* SR: 00110 */ |
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111 { 2304, 8000, 2304, 8000 }, /* SR: 00111 */ |
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112 { 1024, 12000, 1024, 12000 }, /* SR: 01000 */ |
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113 { 1526, 12000, 1536, 12000 }, /* SR: 01001 */ |
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114 { 768, 16000, 768, 16000 }, /* SR: 01010 */ |
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115 { 1152, 16000, 1152, 16000 }, /* SR: 01011 */ |
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116 { 384, 32000, 384, 32000 }, /* SR: 01100 */ |
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117 { 576, 32000, 576, 32000 }, /* SR: 01101 */ |
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118 { 128, 96000, 128, 96000 }, /* SR: 01110 */ |
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119 { 192, 96000, 192, 96000 }, /* SR: 01111 */ |
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120 { 256, 44100, 256, 44100 }, /* SR: 10000 */ |
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121 { 384, 44100, 384, 44100 }, /* SR: 10001 */ |
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122 { 256, 44100, 1408, 8018 }, /* SR: 10010 */ |
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123 { 384, 44100, 2112, 8018 }, /* SR: 10011 */ |
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124 { 1408, 8018, 256, 44100 }, /* SR: 10100 */ |
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125 { 2112, 8018, 384, 44100 }, /* SR: 10101 */ |
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126 { 1408, 8018, 1408, 8018 }, /* SR: 10110 */ |
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127 { 2112, 8018, 2112, 8018 }, /* SR: 10111 */ |
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128 { 1024, 11025, 1024, 11025 }, /* SR: 11000 */ |
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129 { 1536, 11025, 1536, 11025 }, /* SR: 11001 */ |
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130 { 512, 22050, 512, 22050 }, /* SR: 11010 */ |
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131 { 768, 22050, 768, 22050 }, /* SR: 11011 */ |
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132 { 512, 24000, 512, 24000 }, /* SR: 11100 */ |
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133 { 768, 24000, 768, 24000 }, /* SR: 11101 */ |
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134 { 128, 88200, 128, 88200 }, /* SR: 11110 */ |
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135 { 192, 88200, 192, 88200 }, /* SR: 11111 */ |
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136 }; |
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137 |
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138 static void wm8750_vol_update(struct wm8750_s *s) |
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139 { |
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140 /* FIXME: multiply all volumes by s->invol[2], s->invol[3] */ |
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141 |
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142 AUD_set_volume_in(s->adc_voice[0], s->mute, |
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143 s->inmute[0] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[0]), |
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144 s->inmute[1] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[1])); |
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145 AUD_set_volume_in(s->adc_voice[1], s->mute, |
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146 s->inmute[0] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[0]), |
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147 s->inmute[1] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[1])); |
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148 AUD_set_volume_in(s->adc_voice[2], s->mute, |
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149 s->inmute[0] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[0]), |
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150 s->inmute[1] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[1])); |
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151 |
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152 /* FIXME: multiply all volumes by s->outvol[0], s->outvol[1] */ |
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153 |
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154 /* Speaker: LOUT2VOL ROUT2VOL */ |
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155 AUD_set_volume_out(s->dac_voice[0], s->mute, |
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156 s->outmute[0] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[4]), |
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157 s->outmute[1] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[5])); |
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158 |
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159 /* Headphone: LOUT1VOL ROUT1VOL */ |
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160 AUD_set_volume_out(s->dac_voice[1], s->mute, |
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161 s->outmute[0] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[2]), |
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162 s->outmute[1] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[3])); |
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163 |
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164 /* MONOOUT: MONOVOL MONOVOL */ |
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165 AUD_set_volume_out(s->dac_voice[2], s->mute, |
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166 s->outmute[0] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[6]), |
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167 s->outmute[1] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[6])); |
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168 } |
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169 |
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170 static void wm8750_set_format(struct wm8750_s *s) |
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171 { |
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172 int i; |
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173 struct audsettings in_fmt; |
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174 struct audsettings out_fmt; |
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175 struct audsettings monoout_fmt; |
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176 |
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177 wm8750_out_flush(s); |
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178 |
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179 if (s->in[0] && *s->in[0]) |
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180 AUD_set_active_in(*s->in[0], 0); |
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181 if (s->out[0] && *s->out[0]) |
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182 AUD_set_active_out(*s->out[0], 0); |
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183 |
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184 for (i = 0; i < IN_PORT_N; i ++) |
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185 if (s->adc_voice[i]) { |
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186 AUD_close_in(&s->card, s->adc_voice[i]); |
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187 s->adc_voice[i] = 0; |
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188 } |
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189 for (i = 0; i < OUT_PORT_N; i ++) |
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190 if (s->dac_voice[i]) { |
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191 AUD_close_out(&s->card, s->dac_voice[i]); |
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192 s->dac_voice[i] = 0; |
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193 } |
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194 |
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195 if (!s->enable) |
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196 return; |
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197 |
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198 /* Setup input */ |
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199 in_fmt.endianness = 0; |
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200 in_fmt.nchannels = 2; |
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201 in_fmt.freq = s->adc_hz; |
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202 in_fmt.fmt = AUD_FMT_S16; |
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203 |
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204 s->adc_voice[0] = AUD_open_in(&s->card, s->adc_voice[0], |
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205 CODEC ".input1", s, wm8750_audio_in_cb, &in_fmt); |
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206 s->adc_voice[1] = AUD_open_in(&s->card, s->adc_voice[1], |
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207 CODEC ".input2", s, wm8750_audio_in_cb, &in_fmt); |
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208 s->adc_voice[2] = AUD_open_in(&s->card, s->adc_voice[2], |
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209 CODEC ".input3", s, wm8750_audio_in_cb, &in_fmt); |
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210 |
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211 /* Setup output */ |
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212 out_fmt.endianness = 0; |
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213 out_fmt.nchannels = 2; |
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214 out_fmt.freq = s->dac_hz; |
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215 out_fmt.fmt = AUD_FMT_S16; |
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216 monoout_fmt.endianness = 0; |
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217 monoout_fmt.nchannels = 1; |
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218 monoout_fmt.freq = s->rate->dac_hz; |
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219 monoout_fmt.fmt = AUD_FMT_S16; |
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220 |
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221 s->dac_voice[0] = AUD_open_out(&s->card, s->dac_voice[0], |
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222 CODEC ".speaker", s, wm8750_audio_out_cb, &out_fmt); |
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223 s->dac_voice[1] = AUD_open_out(&s->card, s->dac_voice[1], |
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224 CODEC ".headphone", s, wm8750_audio_out_cb, &out_fmt); |
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225 /* MONOMIX is also in stereo for simplicity */ |
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226 s->dac_voice[2] = AUD_open_out(&s->card, s->dac_voice[2], |
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227 CODEC ".monomix", s, wm8750_audio_out_cb, &out_fmt); |
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228 /* no sense emulating OUT3 which is a mix of other outputs */ |
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229 |
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230 wm8750_vol_update(s); |
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231 |
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232 /* We should connect the left and right channels to their |
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233 * respective inputs/outputs but we have completely no need |
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234 * for mixing or combining paths to different ports, so we |
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235 * connect both channels to where the left channel is routed. */ |
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236 if (s->in[0] && *s->in[0]) |
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237 AUD_set_active_in(*s->in[0], 1); |
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238 if (s->out[0] && *s->out[0]) |
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239 AUD_set_active_out(*s->out[0], 1); |
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240 } |
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241 |
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242 static void wm8750_clk_update(struct wm8750_s *s, int ext) |
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243 { |
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244 if (s->master || !s->ext_dac_hz) |
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245 s->dac_hz = s->rate->dac_hz; |
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246 else |
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247 s->dac_hz = s->ext_dac_hz; |
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248 |
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249 if (s->master || !s->ext_adc_hz) |
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250 s->adc_hz = s->rate->adc_hz; |
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251 else |
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252 s->adc_hz = s->ext_adc_hz; |
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253 |
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254 if (s->master || (!s->ext_dac_hz && !s->ext_adc_hz)) { |
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255 if (!ext) |
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256 wm8750_set_format(s); |
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257 } else { |
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258 if (ext) |
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259 wm8750_set_format(s); |
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260 } |
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261 } |
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262 |
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263 void wm8750_reset(i2c_slave *i2c) |
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264 { |
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265 struct wm8750_s *s = (struct wm8750_s *) i2c; |
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266 s->rate = &wm_rate_table[0]; |
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267 s->enable = 0; |
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268 wm8750_clk_update(s, 1); |
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269 s->diff[0] = 0; |
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270 s->diff[1] = 0; |
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271 s->ds = 0; |
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272 s->alc = 0; |
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273 s->in[0] = &s->adc_voice[0]; |
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274 s->invol[0] = 0x17; |
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275 s->invol[1] = 0x17; |
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276 s->invol[2] = 0xc3; |
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277 s->invol[3] = 0xc3; |
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278 s->out[0] = &s->dac_voice[0]; |
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279 s->outvol[0] = 0xff; |
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280 s->outvol[1] = 0xff; |
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281 s->outvol[2] = 0x79; |
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282 s->outvol[3] = 0x79; |
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283 s->outvol[4] = 0x79; |
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284 s->outvol[5] = 0x79; |
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285 s->outvol[6] = 0x79; |
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286 s->inmute[0] = 0; |
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287 s->inmute[1] = 0; |
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288 s->outmute[0] = 0; |
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289 s->outmute[1] = 0; |
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290 s->mute = 1; |
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291 s->path[0] = 0; |
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292 s->path[1] = 0; |
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293 s->path[2] = 0; |
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294 s->path[3] = 0; |
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295 s->mpath[0] = 0; |
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296 s->mpath[1] = 0; |
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297 s->format = 0x0a; |
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298 s->idx_in = sizeof(s->data_in); |
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299 s->req_in = 0; |
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300 s->idx_out = 0; |
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301 s->req_out = 0; |
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302 wm8750_vol_update(s); |
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303 s->i2c_len = 0; |
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304 } |
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305 |
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306 static void wm8750_event(i2c_slave *i2c, enum i2c_event event) |
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307 { |
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308 struct wm8750_s *s = (struct wm8750_s *) i2c; |
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309 |
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310 switch (event) { |
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311 case I2C_START_SEND: |
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312 s->i2c_len = 0; |
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313 break; |
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314 case I2C_FINISH: |
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315 #ifdef VERBOSE |
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316 if (s->i2c_len < 2) |
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317 printf("%s: message too short (%i bytes)\n", |
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318 __FUNCTION__, s->i2c_len); |
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319 #endif |
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320 break; |
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321 default: |
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322 break; |
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323 } |
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324 } |
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325 |
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326 #define WM8750_LINVOL 0x00 |
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327 #define WM8750_RINVOL 0x01 |
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328 #define WM8750_LOUT1V 0x02 |
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329 #define WM8750_ROUT1V 0x03 |
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330 #define WM8750_ADCDAC 0x05 |
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331 #define WM8750_IFACE 0x07 |
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332 #define WM8750_SRATE 0x08 |
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333 #define WM8750_LDAC 0x0a |
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334 #define WM8750_RDAC 0x0b |
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335 #define WM8750_BASS 0x0c |
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336 #define WM8750_TREBLE 0x0d |
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337 #define WM8750_RESET 0x0f |
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338 #define WM8750_3D 0x10 |
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339 #define WM8750_ALC1 0x11 |
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340 #define WM8750_ALC2 0x12 |
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341 #define WM8750_ALC3 0x13 |
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342 #define WM8750_NGATE 0x14 |
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343 #define WM8750_LADC 0x15 |
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344 #define WM8750_RADC 0x16 |
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345 #define WM8750_ADCTL1 0x17 |
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346 #define WM8750_ADCTL2 0x18 |
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347 #define WM8750_PWR1 0x19 |
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348 #define WM8750_PWR2 0x1a |
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349 #define WM8750_ADCTL3 0x1b |
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350 #define WM8750_ADCIN 0x1f |
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351 #define WM8750_LADCIN 0x20 |
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352 #define WM8750_RADCIN 0x21 |
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353 #define WM8750_LOUTM1 0x22 |
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354 #define WM8750_LOUTM2 0x23 |
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355 #define WM8750_ROUTM1 0x24 |
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356 #define WM8750_ROUTM2 0x25 |
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357 #define WM8750_MOUTM1 0x26 |
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358 #define WM8750_MOUTM2 0x27 |
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359 #define WM8750_LOUT2V 0x28 |
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360 #define WM8750_ROUT2V 0x29 |
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361 #define WM8750_MOUTV 0x2a |
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362 |
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363 static int wm8750_tx(i2c_slave *i2c, uint8_t data) |
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364 { |
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365 struct wm8750_s *s = (struct wm8750_s *) i2c; |
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366 uint8_t cmd; |
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367 uint16_t value; |
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368 |
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369 if (s->i2c_len >= 2) { |
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370 printf("%s: long message (%i bytes)\n", __FUNCTION__, s->i2c_len); |
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371 #ifdef VERBOSE |
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372 return 1; |
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373 #endif |
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374 } |
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375 s->i2c_data[s->i2c_len ++] = data; |
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376 if (s->i2c_len != 2) |
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377 return 0; |
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378 |
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379 cmd = s->i2c_data[0] >> 1; |
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380 value = ((s->i2c_data[0] << 8) | s->i2c_data[1]) & 0x1ff; |
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381 |
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382 switch (cmd) { |
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383 case WM8750_LADCIN: /* ADC Signal Path Control (Left) */ |
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384 s->diff[0] = (((value >> 6) & 3) == 3); /* LINSEL */ |
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385 if (s->diff[0]) |
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386 s->in[0] = &s->adc_voice[0 + s->ds * 1]; |
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387 else |
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388 s->in[0] = &s->adc_voice[((value >> 6) & 3) * 1 + 0]; |
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389 break; |
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390 |
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391 case WM8750_RADCIN: /* ADC Signal Path Control (Right) */ |
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392 s->diff[1] = (((value >> 6) & 3) == 3); /* RINSEL */ |
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393 if (s->diff[1]) |
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394 s->in[1] = &s->adc_voice[0 + s->ds * 1]; |
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395 else |
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396 s->in[1] = &s->adc_voice[((value >> 6) & 3) * 1 + 0]; |
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397 break; |
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398 |
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399 case WM8750_ADCIN: /* ADC Input Mode */ |
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400 s->ds = (value >> 8) & 1; /* DS */ |
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401 if (s->diff[0]) |
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402 s->in[0] = &s->adc_voice[0 + s->ds * 1]; |
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403 if (s->diff[1]) |
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404 s->in[1] = &s->adc_voice[0 + s->ds * 1]; |
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405 s->monomix[0] = (value >> 6) & 3; /* MONOMIX */ |
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406 break; |
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407 |
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408 case WM8750_ADCTL1: /* Additional Control (1) */ |
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409 s->monomix[1] = (value >> 1) & 1; /* DMONOMIX */ |
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410 break; |
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411 |
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412 case WM8750_PWR1: /* Power Management (1) */ |
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413 s->enable = ((value >> 6) & 7) == 3; /* VMIDSEL, VREF */ |
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414 wm8750_set_format(s); |
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415 break; |
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416 |
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417 case WM8750_LINVOL: /* Left Channel PGA */ |
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418 s->invol[0] = value & 0x3f; /* LINVOL */ |
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419 s->inmute[0] = (value >> 7) & 1; /* LINMUTE */ |
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420 wm8750_vol_update(s); |
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421 break; |
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422 |
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423 case WM8750_RINVOL: /* Right Channel PGA */ |
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424 s->invol[1] = value & 0x3f; /* RINVOL */ |
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425 s->inmute[1] = (value >> 7) & 1; /* RINMUTE */ |
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426 wm8750_vol_update(s); |
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427 break; |
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428 |
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429 case WM8750_ADCDAC: /* ADC and DAC Control */ |
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430 s->pol = (value >> 5) & 3; /* ADCPOL */ |
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431 s->mute = (value >> 3) & 1; /* DACMU */ |
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432 wm8750_vol_update(s); |
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433 break; |
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434 |
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435 case WM8750_ADCTL3: /* Additional Control (3) */ |
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436 break; |
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437 |
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438 case WM8750_LADC: /* Left ADC Digital Volume */ |
|
439 s->invol[2] = value & 0xff; /* LADCVOL */ |
|
440 wm8750_vol_update(s); |
|
441 break; |
|
442 |
|
443 case WM8750_RADC: /* Right ADC Digital Volume */ |
|
444 s->invol[3] = value & 0xff; /* RADCVOL */ |
|
445 wm8750_vol_update(s); |
|
446 break; |
|
447 |
|
448 case WM8750_ALC1: /* ALC Control (1) */ |
|
449 s->alc = (value >> 7) & 3; /* ALCSEL */ |
|
450 break; |
|
451 |
|
452 case WM8750_NGATE: /* Noise Gate Control */ |
|
453 case WM8750_3D: /* 3D enhance */ |
|
454 break; |
|
455 |
|
456 case WM8750_LDAC: /* Left Channel Digital Volume */ |
|
457 s->outvol[0] = value & 0xff; /* LDACVOL */ |
|
458 wm8750_vol_update(s); |
|
459 break; |
|
460 |
|
461 case WM8750_RDAC: /* Right Channel Digital Volume */ |
|
462 s->outvol[1] = value & 0xff; /* RDACVOL */ |
|
463 wm8750_vol_update(s); |
|
464 break; |
|
465 |
|
466 case WM8750_BASS: /* Bass Control */ |
|
467 break; |
|
468 |
|
469 case WM8750_LOUTM1: /* Left Mixer Control (1) */ |
|
470 s->path[0] = (value >> 8) & 1; /* LD2LO */ |
|
471 /* TODO: mute/unmute respective paths */ |
|
472 wm8750_vol_update(s); |
|
473 break; |
|
474 |
|
475 case WM8750_LOUTM2: /* Left Mixer Control (2) */ |
|
476 s->path[1] = (value >> 8) & 1; /* RD2LO */ |
|
477 /* TODO: mute/unmute respective paths */ |
|
478 wm8750_vol_update(s); |
|
479 break; |
|
480 |
|
481 case WM8750_ROUTM1: /* Right Mixer Control (1) */ |
|
482 s->path[2] = (value >> 8) & 1; /* LD2RO */ |
|
483 /* TODO: mute/unmute respective paths */ |
|
484 wm8750_vol_update(s); |
|
485 break; |
|
486 |
|
487 case WM8750_ROUTM2: /* Right Mixer Control (2) */ |
|
488 s->path[3] = (value >> 8) & 1; /* RD2RO */ |
|
489 /* TODO: mute/unmute respective paths */ |
|
490 wm8750_vol_update(s); |
|
491 break; |
|
492 |
|
493 case WM8750_MOUTM1: /* Mono Mixer Control (1) */ |
|
494 s->mpath[0] = (value >> 8) & 1; /* LD2MO */ |
|
495 /* TODO: mute/unmute respective paths */ |
|
496 wm8750_vol_update(s); |
|
497 break; |
|
498 |
|
499 case WM8750_MOUTM2: /* Mono Mixer Control (2) */ |
|
500 s->mpath[1] = (value >> 8) & 1; /* RD2MO */ |
|
501 /* TODO: mute/unmute respective paths */ |
|
502 wm8750_vol_update(s); |
|
503 break; |
|
504 |
|
505 case WM8750_LOUT1V: /* LOUT1 Volume */ |
|
506 s->outvol[2] = value & 0x7f; /* LOUT1VOL */ |
|
507 wm8750_vol_update(s); |
|
508 break; |
|
509 |
|
510 case WM8750_LOUT2V: /* LOUT2 Volume */ |
|
511 s->outvol[4] = value & 0x7f; /* LOUT2VOL */ |
|
512 wm8750_vol_update(s); |
|
513 break; |
|
514 |
|
515 case WM8750_ROUT1V: /* ROUT1 Volume */ |
|
516 s->outvol[3] = value & 0x7f; /* ROUT1VOL */ |
|
517 wm8750_vol_update(s); |
|
518 break; |
|
519 |
|
520 case WM8750_ROUT2V: /* ROUT2 Volume */ |
|
521 s->outvol[5] = value & 0x7f; /* ROUT2VOL */ |
|
522 wm8750_vol_update(s); |
|
523 break; |
|
524 |
|
525 case WM8750_MOUTV: /* MONOOUT Volume */ |
|
526 s->outvol[6] = value & 0x7f; /* MONOOUTVOL */ |
|
527 wm8750_vol_update(s); |
|
528 break; |
|
529 |
|
530 case WM8750_ADCTL2: /* Additional Control (2) */ |
|
531 break; |
|
532 |
|
533 case WM8750_PWR2: /* Power Management (2) */ |
|
534 s->power = value & 0x7e; |
|
535 /* TODO: mute/unmute respective paths */ |
|
536 wm8750_vol_update(s); |
|
537 break; |
|
538 |
|
539 case WM8750_IFACE: /* Digital Audio Interface Format */ |
|
540 s->format = value; |
|
541 s->master = (value >> 6) & 1; /* MS */ |
|
542 wm8750_clk_update(s, s->master); |
|
543 break; |
|
544 |
|
545 case WM8750_SRATE: /* Clocking and Sample Rate Control */ |
|
546 s->rate = &wm_rate_table[(value >> 1) & 0x1f]; |
|
547 wm8750_clk_update(s, 0); |
|
548 break; |
|
549 |
|
550 case WM8750_RESET: /* Reset */ |
|
551 wm8750_reset(&s->i2c); |
|
552 break; |
|
553 |
|
554 #ifdef VERBOSE |
|
555 default: |
|
556 printf("%s: unknown register %02x\n", __FUNCTION__, cmd); |
|
557 #endif |
|
558 } |
|
559 |
|
560 return 0; |
|
561 } |
|
562 |
|
563 static int wm8750_rx(i2c_slave *i2c) |
|
564 { |
|
565 return 0x00; |
|
566 } |
|
567 |
|
568 static void wm8750_save(QEMUFile *f, void *opaque) |
|
569 { |
|
570 struct wm8750_s *s = (struct wm8750_s *) opaque; |
|
571 int i; |
|
572 qemu_put_8s(f, &s->i2c_data[0]); |
|
573 qemu_put_8s(f, &s->i2c_data[1]); |
|
574 qemu_put_be32(f, s->i2c_len); |
|
575 qemu_put_be32(f, s->enable); |
|
576 qemu_put_be32(f, s->idx_in); |
|
577 qemu_put_be32(f, s->req_in); |
|
578 qemu_put_be32(f, s->idx_out); |
|
579 qemu_put_be32(f, s->req_out); |
|
580 |
|
581 for (i = 0; i < 7; i ++) |
|
582 qemu_put_8s(f, &s->outvol[i]); |
|
583 for (i = 0; i < 2; i ++) |
|
584 qemu_put_8s(f, &s->outmute[i]); |
|
585 for (i = 0; i < 4; i ++) |
|
586 qemu_put_8s(f, &s->invol[i]); |
|
587 for (i = 0; i < 2; i ++) |
|
588 qemu_put_8s(f, &s->inmute[i]); |
|
589 |
|
590 for (i = 0; i < 2; i ++) |
|
591 qemu_put_8s(f, &s->diff[i]); |
|
592 qemu_put_8s(f, &s->pol); |
|
593 qemu_put_8s(f, &s->ds); |
|
594 for (i = 0; i < 2; i ++) |
|
595 qemu_put_8s(f, &s->monomix[i]); |
|
596 qemu_put_8s(f, &s->alc); |
|
597 qemu_put_8s(f, &s->mute); |
|
598 for (i = 0; i < 4; i ++) |
|
599 qemu_put_8s(f, &s->path[i]); |
|
600 for (i = 0; i < 2; i ++) |
|
601 qemu_put_8s(f, &s->mpath[i]); |
|
602 qemu_put_8s(f, &s->format); |
|
603 qemu_put_8s(f, &s->power); |
|
604 qemu_put_byte(f, (s->rate - wm_rate_table) / sizeof(*s->rate)); |
|
605 i2c_slave_save(f, &s->i2c); |
|
606 } |
|
607 |
|
608 static int wm8750_load(QEMUFile *f, void *opaque, int version_id) |
|
609 { |
|
610 struct wm8750_s *s = (struct wm8750_s *) opaque; |
|
611 int i; |
|
612 qemu_get_8s(f, &s->i2c_data[0]); |
|
613 qemu_get_8s(f, &s->i2c_data[1]); |
|
614 s->i2c_len = qemu_get_be32(f); |
|
615 s->enable = qemu_get_be32(f); |
|
616 s->idx_in = qemu_get_be32(f); |
|
617 s->req_in = qemu_get_be32(f); |
|
618 s->idx_out = qemu_get_be32(f); |
|
619 s->req_out = qemu_get_be32(f); |
|
620 |
|
621 for (i = 0; i < 7; i ++) |
|
622 qemu_get_8s(f, &s->outvol[i]); |
|
623 for (i = 0; i < 2; i ++) |
|
624 qemu_get_8s(f, &s->outmute[i]); |
|
625 for (i = 0; i < 4; i ++) |
|
626 qemu_get_8s(f, &s->invol[i]); |
|
627 for (i = 0; i < 2; i ++) |
|
628 qemu_get_8s(f, &s->inmute[i]); |
|
629 |
|
630 for (i = 0; i < 2; i ++) |
|
631 qemu_get_8s(f, &s->diff[i]); |
|
632 qemu_get_8s(f, &s->pol); |
|
633 qemu_get_8s(f, &s->ds); |
|
634 for (i = 0; i < 2; i ++) |
|
635 qemu_get_8s(f, &s->monomix[i]); |
|
636 qemu_get_8s(f, &s->alc); |
|
637 qemu_get_8s(f, &s->mute); |
|
638 for (i = 0; i < 4; i ++) |
|
639 qemu_get_8s(f, &s->path[i]); |
|
640 for (i = 0; i < 2; i ++) |
|
641 qemu_get_8s(f, &s->mpath[i]); |
|
642 qemu_get_8s(f, &s->format); |
|
643 qemu_get_8s(f, &s->power); |
|
644 s->rate = &wm_rate_table[(uint8_t) qemu_get_byte(f) & 0x1f]; |
|
645 i2c_slave_load(f, &s->i2c); |
|
646 return 0; |
|
647 } |
|
648 |
|
649 i2c_slave *wm8750_init(i2c_bus *bus, AudioState *audio) |
|
650 { |
|
651 struct wm8750_s *s = (struct wm8750_s *) |
|
652 i2c_slave_init(bus, 0, sizeof(struct wm8750_s)); |
|
653 s->i2c.event = wm8750_event; |
|
654 s->i2c.recv = wm8750_rx; |
|
655 s->i2c.send = wm8750_tx; |
|
656 |
|
657 AUD_register_card(audio, CODEC, &s->card); |
|
658 wm8750_reset(&s->i2c); |
|
659 |
|
660 register_savevm(CODEC, -1, 0, wm8750_save, wm8750_load, s); |
|
661 |
|
662 return &s->i2c; |
|
663 } |
|
664 |
|
665 #if 0 |
|
666 static void wm8750_fini(i2c_slave *i2c) |
|
667 { |
|
668 struct wm8750_s *s = (struct wm8750_s *) i2c; |
|
669 wm8750_reset(&s->i2c); |
|
670 AUD_remove_card(&s->card); |
|
671 qemu_free(s); |
|
672 } |
|
673 #endif |
|
674 |
|
675 void wm8750_data_req_set(i2c_slave *i2c, |
|
676 void (*data_req)(void *, int, int), void *opaque) |
|
677 { |
|
678 struct wm8750_s *s = (struct wm8750_s *) i2c; |
|
679 s->data_req = data_req; |
|
680 s->opaque = opaque; |
|
681 } |
|
682 |
|
683 void wm8750_dac_dat(void *opaque, uint32_t sample) |
|
684 { |
|
685 struct wm8750_s *s = (struct wm8750_s *) opaque; |
|
686 |
|
687 *(uint32_t *) &s->data_out[s->idx_out] = sample; |
|
688 s->req_out -= 4; |
|
689 s->idx_out += 4; |
|
690 if (s->idx_out >= sizeof(s->data_out) || s->req_out <= 0) |
|
691 wm8750_out_flush(s); |
|
692 } |
|
693 |
|
694 void *wm8750_dac_buffer(void *opaque, int samples) |
|
695 { |
|
696 struct wm8750_s *s = (struct wm8750_s *) opaque; |
|
697 /* XXX: Should check if there are <i>samples</i> free samples available */ |
|
698 void *ret = s->data_out + s->idx_out; |
|
699 |
|
700 s->idx_out += samples << 2; |
|
701 s->req_out -= samples << 2; |
|
702 return ret; |
|
703 } |
|
704 |
|
705 void wm8750_dac_commit(void *opaque) |
|
706 { |
|
707 struct wm8750_s *s = (struct wm8750_s *) opaque; |
|
708 |
|
709 return wm8750_out_flush(s); |
|
710 } |
|
711 |
|
712 uint32_t wm8750_adc_dat(void *opaque) |
|
713 { |
|
714 struct wm8750_s *s = (struct wm8750_s *) opaque; |
|
715 uint32_t *data; |
|
716 |
|
717 if (s->idx_in >= sizeof(s->data_in)) |
|
718 wm8750_in_load(s); |
|
719 |
|
720 data = (uint32_t *) &s->data_in[s->idx_in]; |
|
721 s->req_in -= 4; |
|
722 s->idx_in += 4; |
|
723 return *data; |
|
724 } |
|
725 |
|
726 void wm8750_set_bclk_in(void *opaque, int new_hz) |
|
727 { |
|
728 struct wm8750_s *s = (struct wm8750_s *) opaque; |
|
729 |
|
730 s->ext_adc_hz = new_hz; |
|
731 s->ext_dac_hz = new_hz; |
|
732 wm8750_clk_update(s, 1); |
|
733 } |