/* * wm8904.c -- WM8904 ALSA SoC Audio driver * * Copyright 2009 Wolfson Microelectronics plc * * Author: Mark Brown * * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "wm8904.h" enum wm8904_type { WM8904, WM8912, }; #define WM8904_NUM_DCS_CHANNELS 4 #define WM8904_NUM_SUPPLIES 5 static const char *wm8904_supply_names[WM8904_NUM_SUPPLIES] = { "DCVDD", "DBVDD", "AVDD", "CPVDD", "MICVDD", }; /* codec private data */ struct wm8904_priv { enum wm8904_type devtype; struct regulator_bulk_data supplies[WM8904_NUM_SUPPLIES]; struct wm8904_pdata *pdata; int deemph; /* Platform provided DRC configuration */ const char **drc_texts; int drc_cfg; struct soc_enum drc_enum; /* Platform provided ReTune mobile configuration */ int num_retune_mobile_texts; const char **retune_mobile_texts; int retune_mobile_cfg; struct soc_enum retune_mobile_enum; /* FLL setup */ int fll_src; int fll_fref; int fll_fout; /* Clocking configuration */ unsigned int mclk_rate; int sysclk_src; unsigned int sysclk_rate; int tdm_width; int tdm_slots; int bclk; int fs; /* DC servo configuration - cached offset values */ int dcs_state[WM8904_NUM_DCS_CHANNELS]; }; static const u16 wm8904_reg[WM8904_MAX_REGISTER + 1] = { 0x8904, /* R0 - SW Reset and ID */ 0x0000, /* R1 - Revision */ 0x0000, /* R2 */ 0x0000, /* R3 */ 0x0018, /* R4 - Bias Control 0 */ 0x0000, /* R5 - VMID Control 0 */ 0x0000, /* R6 - Mic Bias Control 0 */ 0x0000, /* R7 - Mic Bias Control 1 */ 0x0001, /* R8 - Analogue DAC 0 */ 0x9696, /* R9 - mic Filter Control */ 0x0001, /* R10 - Analogue ADC 0 */ 0x0000, /* R11 */ 0x0000, /* R12 - Power Management 0 */ 0x0000, /* R13 */ 0x0000, /* R14 - Power Management 2 */ 0x0000, /* R15 - Power Management 3 */ 0x0000, /* R16 */ 0x0000, /* R17 */ 0x0000, /* R18 - Power Management 6 */ 0x0000, /* R19 */ 0x945E, /* R20 - Clock Rates 0 */ 0x0C05, /* R21 - Clock Rates 1 */ 0x0006, /* R22 - Clock Rates 2 */ 0x0000, /* R23 */ 0x0050, /* R24 - Audio Interface 0 */ 0x000A, /* R25 - Audio Interface 1 */ 0x00E4, /* R26 - Audio Interface 2 */ 0x0040, /* R27 - Audio Interface 3 */ 0x0000, /* R28 */ 0x0000, /* R29 */ 0x00C0, /* R30 - DAC Digital Volume Left */ 0x00C0, /* R31 - DAC Digital Volume Right */ 0x0000, /* R32 - DAC Digital 0 */ 0x0008, /* R33 - DAC Digital 1 */ 0x0000, /* R34 */ 0x0000, /* R35 */ 0x00C0, /* R36 - ADC Digital Volume Left */ 0x00C0, /* R37 - ADC Digital Volume Right */ 0x0010, /* R38 - ADC Digital 0 */ 0x0000, /* R39 - Digital Microphone 0 */ 0x01AF, /* R40 - DRC 0 */ 0x3248, /* R41 - DRC 1 */ 0x0000, /* R42 - DRC 2 */ 0x0000, /* R43 - DRC 3 */ 0x0085, /* R44 - Analogue Left Input 0 */ 0x0085, /* R45 - Analogue Right Input 0 */ 0x0044, /* R46 - Analogue Left Input 1 */ 0x0044, /* R47 - Analogue Right Input 1 */ 0x0000, /* R48 */ 0x0000, /* R49 */ 0x0000, /* R50 */ 0x0000, /* R51 */ 0x0000, /* R52 */ 0x0000, /* R53 */ 0x0000, /* R54 */ 0x0000, /* R55 */ 0x0000, /* R56 */ 0x002D, /* R57 - Analogue OUT1 Left */ 0x002D, /* R58 - Analogue OUT1 Right */ 0x0039, /* R59 - Analogue OUT2 Left */ 0x0039, /* R60 - Analogue OUT2 Right */ 0x0000, /* R61 - Analogue OUT12 ZC */ 0x0000, /* R62 */ 0x0000, /* R63 */ 0x0000, /* R64 */ 0x0000, /* R65 */ 0x0000, /* R66 */ 0x0000, /* R67 - DC Servo 0 */ 0x0000, /* R68 - DC Servo 1 */ 0xAAAA, /* R69 - DC Servo 2 */ 0x0000, /* R70 */ 0xAAAA, /* R71 - DC Servo 4 */ 0xAAAA, /* R72 - DC Servo 5 */ 0x0000, /* R73 - DC Servo 6 */ 0x0000, /* R74 - DC Servo 7 */ 0x0000, /* R75 - DC Servo 8 */ 0x0000, /* R76 - DC Servo 9 */ 0x0000, /* R77 - DC Servo Readback 0 */ 0x0000, /* R78 */ 0x0000, /* R79 */ 0x0000, /* R80 */ 0x0000, /* R81 */ 0x0000, /* R82 */ 0x0000, /* R83 */ 0x0000, /* R84 */ 0x0000, /* R85 */ 0x0000, /* R86 */ 0x0000, /* R87 */ 0x0000, /* R88 */ 0x0000, /* R89 */ 0x0000, /* R90 - Analogue HP 0 */ 0x0000, /* R91 */ 0x0000, /* R92 */ 0x0000, /* R93 */ 0x0000, /* R94 - Analogue Lineout 0 */ 0x0000, /* R95 */ 0x0000, /* R96 */ 0x0000, /* R97 */ 0x0000, /* R98 - Charge Pump 0 */ 0x0000, /* R99 */ 0x0000, /* R100 */ 0x0000, /* R101 */ 0x0000, /* R102 */ 0x0000, /* R103 */ 0x0004, /* R104 - Class W 0 */ 0x0000, /* R105 */ 0x0000, /* R106 */ 0x0000, /* R107 */ 0x0000, /* R108 - Write Sequencer 0 */ 0x0000, /* R109 - Write Sequencer 1 */ 0x0000, /* R110 - Write Sequencer 2 */ 0x0000, /* R111 - Write Sequencer 3 */ 0x0000, /* R112 - Write Sequencer 4 */ 0x0000, /* R113 */ 0x0000, /* R114 */ 0x0000, /* R115 */ 0x0000, /* R116 - FLL Control 1 */ 0x0007, /* R117 - FLL Control 2 */ 0x0000, /* R118 - FLL Control 3 */ 0x2EE0, /* R119 - FLL Control 4 */ 0x0004, /* R120 - FLL Control 5 */ 0x0014, /* R121 - GPIO Control 1 */ 0x0010, /* R122 - GPIO Control 2 */ 0x0010, /* R123 - GPIO Control 3 */ 0x0000, /* R124 - GPIO Control 4 */ 0x0000, /* R125 */ 0x0000, /* R126 - Digital Pulls */ 0x0000, /* R127 - Interrupt Status */ 0xFFFF, /* R128 - Interrupt Status Mask */ 0x0000, /* R129 - Interrupt Polarity */ 0x0000, /* R130 - Interrupt Debounce */ 0x0000, /* R131 */ 0x0000, /* R132 */ 0x0000, /* R133 */ 0x0000, /* R134 - EQ1 */ 0x000C, /* R135 - EQ2 */ 0x000C, /* R136 - EQ3 */ 0x000C, /* R137 - EQ4 */ 0x000C, /* R138 - EQ5 */ 0x000C, /* R139 - EQ6 */ 0x0FCA, /* R140 - EQ7 */ 0x0400, /* R141 - EQ8 */ 0x00D8, /* R142 - EQ9 */ 0x1EB5, /* R143 - EQ10 */ 0xF145, /* R144 - EQ11 */ 0x0B75, /* R145 - EQ12 */ 0x01C5, /* R146 - EQ13 */ 0x1C58, /* R147 - EQ14 */ 0xF373, /* R148 - EQ15 */ 0x0A54, /* R149 - EQ16 */ 0x0558, /* R150 - EQ17 */ 0x168E, /* R151 - EQ18 */ 0xF829, /* R152 - EQ19 */ 0x07AD, /* R153 - EQ20 */ 0x1103, /* R154 - EQ21 */ 0x0564, /* R155 - EQ22 */ 0x0559, /* R156 - EQ23 */ 0x4000, /* R157 - EQ24 */ 0x0000, /* R158 */ 0x0000, /* R159 */ 0x0000, /* R160 */ 0x0000, /* R161 - Control Interface Test 1 */ 0x0000, /* R162 */ 0x0000, /* R163 */ 0x0000, /* R164 */ 0x0000, /* R165 */ 0x0000, /* R166 */ 0x0000, /* R167 */ 0x0000, /* R168 */ 0x0000, /* R169 */ 0x0000, /* R170 */ 0x0000, /* R171 */ 0x0000, /* R172 */ 0x0000, /* R173 */ 0x0000, /* R174 */ 0x0000, /* R175 */ 0x0000, /* R176 */ 0x0000, /* R177 */ 0x0000, /* R178 */ 0x0000, /* R179 */ 0x0000, /* R180 */ 0x0000, /* R181 */ 0x0000, /* R182 */ 0x0000, /* R183 */ 0x0000, /* R184 */ 0x0000, /* R185 */ 0x0000, /* R186 */ 0x0000, /* R187 */ 0x0000, /* R188 */ 0x0000, /* R189 */ 0x0000, /* R190 */ 0x0000, /* R191 */ 0x0000, /* R192 */ 0x0000, /* R193 */ 0x0000, /* R194 */ 0x0000, /* R195 */ 0x0000, /* R196 */ 0x0000, /* R197 */ 0x0000, /* R198 */ 0x0000, /* R199 */ 0x0000, /* R200 */ 0x0000, /* R201 */ 0x0000, /* R202 */ 0x0000, /* R203 */ 0x0000, /* R204 - Analogue Output Bias 0 */ 0x0000, /* R205 */ 0x0000, /* R206 */ 0x0000, /* R207 */ 0x0000, /* R208 */ 0x0000, /* R209 */ 0x0000, /* R210 */ 0x0000, /* R211 */ 0x0000, /* R212 */ 0x0000, /* R213 */ 0x0000, /* R214 */ 0x0000, /* R215 */ 0x0000, /* R216 */ 0x0000, /* R217 */ 0x0000, /* R218 */ 0x0000, /* R219 */ 0x0000, /* R220 */ 0x0000, /* R221 */ 0x0000, /* R222 */ 0x0000, /* R223 */ 0x0000, /* R224 */ 0x0000, /* R225 */ 0x0000, /* R226 */ 0x0000, /* R227 */ 0x0000, /* R228 */ 0x0000, /* R229 */ 0x0000, /* R230 */ 0x0000, /* R231 */ 0x0000, /* R232 */ 0x0000, /* R233 */ 0x0000, /* R234 */ 0x0000, /* R235 */ 0x0000, /* R236 */ 0x0000, /* R237 */ 0x0000, /* R238 */ 0x0000, /* R239 */ 0x0000, /* R240 */ 0x0000, /* R241 */ 0x0000, /* R242 */ 0x0000, /* R243 */ 0x0000, /* R244 */ 0x0000, /* R245 */ 0x0000, /* R246 */ 0x0000, /* R247 - FLL NCO Test 0 */ 0x0019, /* R248 - FLL NCO Test 1 */ }; static struct { int readable; int writable; int vol; } wm8904_access[] = { { 0xFFFF, 0xFFFF, 1 }, /* R0 - SW Reset and ID */ { 0x0000, 0x0000, 0 }, /* R1 - Revision */ { 0x0000, 0x0000, 0 }, /* R2 */ { 0x0000, 0x0000, 0 }, /* R3 */ { 0x001F, 0x001F, 0 }, /* R4 - Bias Control 0 */ { 0x0047, 0x0047, 0 }, /* R5 - VMID Control 0 */ { 0x007F, 0x007F, 0 }, /* R6 - Mic Bias Control 0 */ { 0xC007, 0xC007, 0 }, /* R7 - Mic Bias Control 1 */ { 0x001E, 0x001E, 0 }, /* R8 - Analogue DAC 0 */ { 0xFFFF, 0xFFFF, 0 }, /* R9 - mic Filter Control */ { 0x0001, 0x0001, 0 }, /* R10 - Analogue ADC 0 */ { 0x0000, 0x0000, 0 }, /* R11 */ { 0x0003, 0x0003, 0 }, /* R12 - Power Management 0 */ { 0x0000, 0x0000, 0 }, /* R13 */ { 0x0003, 0x0003, 0 }, /* R14 - Power Management 2 */ { 0x0003, 0x0003, 0 }, /* R15 - Power Management 3 */ { 0x0000, 0x0000, 0 }, /* R16 */ { 0x0000, 0x0000, 0 }, /* R17 */ { 0x000F, 0x000F, 0 }, /* R18 - Power Management 6 */ { 0x0000, 0x0000, 0 }, /* R19 */ { 0x7001, 0x7001, 0 }, /* R20 - Clock Rates 0 */ { 0x3C07, 0x3C07, 0 }, /* R21 - Clock Rates 1 */ { 0xD00F, 0xD00F, 0 }, /* R22 - Clock Rates 2 */ { 0x0000, 0x0000, 0 }, /* R23 */ { 0x1FFF, 0x1FFF, 0 }, /* R24 - Audio Interface 0 */ { 0x3DDF, 0x3DDF, 0 }, /* R25 - Audio Interface 1 */ { 0x0F1F, 0x0F1F, 0 }, /* R26 - Audio Interface 2 */ { 0x0FFF, 0x0FFF, 0 }, /* R27 - Audio Interface 3 */ { 0x0000, 0x0000, 0 }, /* R28 */ { 0x0000, 0x0000, 0 }, /* R29 */ { 0x00FF, 0x01FF, 0 }, /* R30 - DAC Digital Volume Left */ { 0x00FF, 0x01FF, 0 }, /* R31 - DAC Digital Volume Right */ { 0x0FFF, 0x0FFF, 0 }, /* R32 - DAC Digital 0 */ { 0x1E4E, 0x1E4E, 0 }, /* R33 - DAC Digital 1 */ { 0x0000, 0x0000, 0 }, /* R34 */ { 0x0000, 0x0000, 0 }, /* R35 */ { 0x00FF, 0x01FF, 0 }, /* R36 - ADC Digital Volume Left */ { 0x00FF, 0x01FF, 0 }, /* R37 - ADC Digital Volume Right */ { 0x0073, 0x0073, 0 }, /* R38 - ADC Digital 0 */ { 0x1800, 0x1800, 0 }, /* R39 - Digital Microphone 0 */ { 0xDFEF, 0xDFEF, 0 }, /* R40 - DRC 0 */ { 0xFFFF, 0xFFFF, 0 }, /* R41 - DRC 1 */ { 0x003F, 0x003F, 0 }, /* R42 - DRC 2 */ { 0x07FF, 0x07FF, 0 }, /* R43 - DRC 3 */ { 0x009F, 0x009F, 0 }, /* R44 - Analogue Left Input 0 */ { 0x009F, 0x009F, 0 }, /* R45 - Analogue Right Input 0 */ { 0x007F, 0x007F, 0 }, /* R46 - Analogue Left Input 1 */ { 0x007F, 0x007F, 0 }, /* R47 - Analogue Right Input 1 */ { 0x0000, 0x0000, 0 }, /* R48 */ { 0x0000, 0x0000, 0 }, /* R49 */ { 0x0000, 0x0000, 0 }, /* R50 */ { 0x0000, 0x0000, 0 }, /* R51 */ { 0x0000, 0x0000, 0 }, /* R52 */ { 0x0000, 0x0000, 0 }, /* R53 */ { 0x0000, 0x0000, 0 }, /* R54 */ { 0x0000, 0x0000, 0 }, /* R55 */ { 0x0000, 0x0000, 0 }, /* R56 */ { 0x017F, 0x01FF, 0 }, /* R57 - Analogue OUT1 Left */ { 0x017F, 0x01FF, 0 }, /* R58 - Analogue OUT1 Right */ { 0x017F, 0x01FF, 0 }, /* R59 - Analogue OUT2 Left */ { 0x017F, 0x01FF, 0 }, /* R60 - Analogue OUT2 Right */ { 0x000F, 0x000F, 0 }, /* R61 - Analogue OUT12 ZC */ { 0x0000, 0x0000, 0 }, /* R62 */ { 0x0000, 0x0000, 0 }, /* R63 */ { 0x0000, 0x0000, 0 }, /* R64 */ { 0x0000, 0x0000, 0 }, /* R65 */ { 0x0000, 0x0000, 0 }, /* R66 */ { 0x000F, 0x000F, 0 }, /* R67 - DC Servo 0 */ { 0xFFFF, 0xFFFF, 1 }, /* R68 - DC Servo 1 */ { 0x0F0F, 0x0F0F, 0 }, /* R69 - DC Servo 2 */ { 0x0000, 0x0000, 0 }, /* R70 */ { 0x007F, 0x007F, 0 }, /* R71 - DC Servo 4 */ { 0x007F, 0x007F, 0 }, /* R72 - DC Servo 5 */ { 0x00FF, 0x00FF, 1 }, /* R73 - DC Servo 6 */ { 0x00FF, 0x00FF, 1 }, /* R74 - DC Servo 7 */ { 0x00FF, 0x00FF, 1 }, /* R75 - DC Servo 8 */ { 0x00FF, 0x00FF, 1 }, /* R76 - DC Servo 9 */ { 0x0FFF, 0x0000, 1 }, /* R77 - DC Servo Readback 0 */ { 0x0000, 0x0000, 0 }, /* R78 */ { 0x0000, 0x0000, 0 }, /* R79 */ { 0x0000, 0x0000, 0 }, /* R80 */ { 0x0000, 0x0000, 0 }, /* R81 */ { 0x0000, 0x0000, 0 }, /* R82 */ { 0x0000, 0x0000, 0 }, /* R83 */ { 0x0000, 0x0000, 0 }, /* R84 */ { 0x0000, 0x0000, 0 }, /* R85 */ { 0x0000, 0x0000, 0 }, /* R86 */ { 0x0000, 0x0000, 0 }, /* R87 */ { 0x0000, 0x0000, 0 }, /* R88 */ { 0x0000, 0x0000, 0 }, /* R89 */ { 0x00FF, 0x00FF, 0 }, /* R90 - Analogue HP 0 */ { 0x0000, 0x0000, 0 }, /* R91 */ { 0x0000, 0x0000, 0 }, /* R92 */ { 0x0000, 0x0000, 0 }, /* R93 */ { 0x00FF, 0x00FF, 0 }, /* R94 - Analogue Lineout 0 */ { 0x0000, 0x0000, 0 }, /* R95 */ { 0x0000, 0x0000, 0 }, /* R96 */ { 0x0000, 0x0000, 0 }, /* R97 */ { 0x0001, 0x0001, 0 }, /* R98 - Charge Pump 0 */ { 0x0000, 0x0000, 0 }, /* R99 */ { 0x0000, 0x0000, 0 }, /* R100 */ { 0x0000, 0x0000, 0 }, /* R101 */ { 0x0000, 0x0000, 0 }, /* R102 */ { 0x0000, 0x0000, 0 }, /* R103 */ { 0x0001, 0x0001, 0 }, /* R104 - Class W 0 */ { 0x0000, 0x0000, 0 }, /* R105 */ { 0x0000, 0x0000, 0 }, /* R106 */ { 0x0000, 0x0000, 0 }, /* R107 */ { 0x011F, 0x011F, 0 }, /* R108 - Write Sequencer 0 */ { 0x7FFF, 0x7FFF, 0 }, /* R109 - Write Sequencer 1 */ { 0x4FFF, 0x4FFF, 0 }, /* R110 - Write Sequencer 2 */ { 0x003F, 0x033F, 0 }, /* R111 - Write Sequencer 3 */ { 0x03F1, 0x0000, 0 }, /* R112 - Write Sequencer 4 */ { 0x0000, 0x0000, 0 }, /* R113 */ { 0x0000, 0x0000, 0 }, /* R114 */ { 0x0000, 0x0000, 0 }, /* R115 */ { 0x0007, 0x0007, 0 }, /* R116 - FLL Control 1 */ { 0x3F77, 0x3F77, 0 }, /* R117 - FLL Control 2 */ { 0xFFFF, 0xFFFF, 0 }, /* R118 - FLL Control 3 */ { 0x7FEF, 0x7FEF, 0 }, /* R119 - FLL Control 4 */ { 0x001B, 0x001B, 0 }, /* R120 - FLL Control 5 */ { 0x003F, 0x003F, 0 }, /* R121 - GPIO Control 1 */ { 0x003F, 0x003F, 0 }, /* R122 - GPIO Control 2 */ { 0x003F, 0x003F, 0 }, /* R123 - GPIO Control 3 */ { 0x038F, 0x038F, 0 }, /* R124 - GPIO Control 4 */ { 0x0000, 0x0000, 0 }, /* R125 */ { 0x00FF, 0x00FF, 0 }, /* R126 - Digital Pulls */ { 0x07FF, 0x03FF, 1 }, /* R127 - Interrupt Status */ { 0x03FF, 0x03FF, 0 }, /* R128 - Interrupt Status Mask */ { 0x03FF, 0x03FF, 0 }, /* R129 - Interrupt Polarity */ { 0x03FF, 0x03FF, 0 }, /* R130 - Interrupt Debounce */ { 0x0000, 0x0000, 0 }, /* R131 */ { 0x0000, 0x0000, 0 }, /* R132 */ { 0x0000, 0x0000, 0 }, /* R133 */ { 0x0001, 0x0001, 0 }, /* R134 - EQ1 */ { 0x001F, 0x001F, 0 }, /* R135 - EQ2 */ { 0x001F, 0x001F, 0 }, /* R136 - EQ3 */ { 0x001F, 0x001F, 0 }, /* R137 - EQ4 */ { 0x001F, 0x001F, 0 }, /* R138 - EQ5 */ { 0x001F, 0x001F, 0 }, /* R139 - EQ6 */ { 0xFFFF, 0xFFFF, 0 }, /* R140 - EQ7 */ { 0xFFFF, 0xFFFF, 0 }, /* R141 - EQ8 */ { 0xFFFF, 0xFFFF, 0 }, /* R142 - EQ9 */ { 0xFFFF, 0xFFFF, 0 }, /* R143 - EQ10 */ { 0xFFFF, 0xFFFF, 0 }, /* R144 - EQ11 */ { 0xFFFF, 0xFFFF, 0 }, /* R145 - EQ12 */ { 0xFFFF, 0xFFFF, 0 }, /* R146 - EQ13 */ { 0xFFFF, 0xFFFF, 0 }, /* R147 - EQ14 */ { 0xFFFF, 0xFFFF, 0 }, /* R148 - EQ15 */ { 0xFFFF, 0xFFFF, 0 }, /* R149 - EQ16 */ { 0xFFFF, 0xFFFF, 0 }, /* R150 - EQ17 */ { 0xFFFF, 0xFFFF, 0 }, /* R151wm8523_dai - EQ18 */ { 0xFFFF, 0xFFFF, 0 }, /* R152 - EQ19 */ { 0xFFFF, 0xFFFF, 0 }, /* R153 - EQ20 */ { 0xFFFF, 0xFFFF, 0 }, /* R154 - EQ21 */ { 0xFFFF, 0xFFFF, 0 }, /* R155 - EQ22 */ { 0xFFFF, 0xFFFF, 0 }, /* R156 - EQ23 */ { 0xFFFF, 0xFFFF, 0 }, /* R157 - EQ24 */ { 0x0000, 0x0000, 0 }, /* R158 */ { 0x0000, 0x0000, 0 }, /* R159 */ { 0x0000, 0x0000, 0 }, /* R160 */ { 0x0002, 0x0002, 0 }, /* R161 - Control Interface Test 1 */ { 0x0000, 0x0000, 0 }, /* R162 */ { 0x0000, 0x0000, 0 }, /* R163 */ { 0x0000, 0x0000, 0 }, /* R164 */ { 0x0000, 0x0000, 0 }, /* R165 */ { 0x0000, 0x0000, 0 }, /* R166 */ { 0x0000, 0x0000, 0 }, /* R167 */ { 0x0000, 0x0000, 0 }, /* R168 */ { 0x0000, 0x0000, 0 }, /* R169 */ { 0x0000, 0x0000, 0 }, /* R170 */ { 0x0000, 0x0000, 0 }, /* R171 */ { 0x0000, 0x0000, 0 }, /* R172 */ { 0x0000, 0x0000, 0 }, /* R173 */ { 0x0000, 0x0000, 0 }, /* R174 */ { 0x0000, 0x0000, 0 }, /* R175 */ { 0x0000, 0x0000, 0 }, /* R176 */ { 0x0000, 0x0000, 0 }, /* R177 */ { 0x0000, 0x0000, 0 }, /* R178 */ { 0x0000, 0x0000, 0 }, /* R179 */ { 0x0000, 0x0000, 0 }, /* R180 */ { 0x0000, 0x0000, 0 }, /* R181 */ { 0x0000, 0x0000, 0 }, /* R182 */ { 0x0000, 0x0000, 0 }, /* R183 */ { 0x0000, 0x0000, 0 }, /* R184 */ { 0x0000, 0x0000, 0 }, /* R185 */ { 0x0000, 0x0000, 0 }, /* R186 */ { 0x0000, 0x0000, 0 }, /* R187 */ { 0x0000, 0x0000, 0 }, /* R188 */ { 0x0000, 0x0000, 0 }, /* R189 */ { 0x0000, 0x0000, 0 }, /* R190 */ { 0x0000, 0x0000, 0 }, /* R191 */ { 0x0000, 0x0000, 0 }, /* R192 */ { 0x0000, 0x0000, 0 }, /* R193 */ { 0x0000, 0x0000, 0 }, /* R194 */ { 0x0000, 0x0000, 0 }, /* R195 */ { 0x0000, 0x0000, 0 }, /* R196 */ { 0x0000, 0x0000, 0 }, /* R197 */ { 0x0000, 0x0000, 0 }, /* R198 */ { 0x0000, 0x0000, 0 }, /* R199 */ { 0x0000, 0x0000, 0 }, /* R200 */ { 0x0000, 0x0000, 0 }, /* R201 */ { 0x0000, 0x0000, 0 }, /* R202 */ { 0x0000, 0x0000, 0 }, /* R203 */ { 0x0070, 0x0070, 0 }, /* R204 - Analogue Output Bias 0 */ { 0x0000, 0x0000, 0 }, /* R205 */ { 0x0000, 0x0000, 0 }, /* R206 */ { 0x0000, 0x0000, 0 }, /* R207 */ { 0x0000, 0x0000, 0 }, /* R208 */ { 0x0000, 0x0000, 0 }, /* R209 */ { 0x0000, 0x0000, 0 }, /* R210 */ { 0x0000, 0x0000, 0 }, /* R211 */ { 0x0000, 0x0000, 0 }, /* R212 */ { 0x0000, 0x0000, 0 }, /* R213 */ { 0x0000, 0x0000, 0 }, /* R214 */ { 0x0000, 0x0000, 0 }, /* R215 */ { 0x0000, 0x0000, 0 }, /* R216 */ { 0x0000, 0x0000, 0 }, /* R217 */ { 0x0000, 0x0000, 0 }, /* R218 */ { 0x0000, 0x0000, 0 }, /* R219 */ { 0x0000, 0x0000, 0 }, /* R220 */ { 0x0000, 0x0000, 0 }, /* R221 */ { 0x0000, 0x0000, 0 }, /* R222 */ { 0x0000, 0x0000, 0 }, /* R223 */ { 0x0000, 0x0000, 0 }, /* R224 */ { 0x0000, 0x0000, 0 }, /* R225 */ { 0x0000, 0x0000, 0 }, /* R226 */ { 0x0000, 0x0000, 0 }, /* R227 */ { 0x0000, 0x0000, 0 }, /* R228 */ { 0x0000, 0x0000, 0 }, /* R229 */ { 0x0000, 0x0000, 0 }, /* R230 */ { 0x0000, 0x0000, 0 }, /* R231 */ { 0x0000, 0x0000, 0 }, /* R232 */ { 0x0000, 0x0000, 0 }, /* R233 */ { 0x0000, 0x0000, 0 }, /* R234 */ { 0x0000, 0x0000, 0 }, /* R235 */ { 0x0000, 0x0000, 0 }, /* R236 */ { 0x0000, 0x0000, 0 }, /* R237 */ { 0x0000, 0x0000, 0 }, /* R238 */ { 0x0000, 0x0000, 0 }, /* R239 */ { 0x0000, 0x0000, 0 }, /* R240 */ { 0x0000, 0x0000, 0 }, /* R241 */ { 0x0000, 0x0000, 0 }, /* R242 */ { 0x0000, 0x0000, 0 }, /* R243 */ { 0x0000, 0x0000, 0 }, /* R244 */ { 0x0000, 0x0000, 0 }, /* R245 */ { 0x0000, 0x0000, 0 }, /* R246 */ { 0x0001, 0x0001, 0 }, /* R247 - FLL NCO Test 0 */ { 0x003F, 0x003F, 0 }, /* R248 - FLL NCO Test 1 */ }; static int wm8904_volatile_register(struct snd_soc_codec *codec, unsigned int reg) { return wm8904_access[reg].vol; } static int wm8904_reset(struct snd_soc_codec *codec) { return snd_soc_write(codec, WM8904_SW_RESET_AND_ID, 0); } static int wm8904_configure_clocking(struct snd_soc_codec *codec) { struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); unsigned int clock0, clock2, rate; /* Gate the clock while we're updating to avoid misclocking */ clock2 = snd_soc_read(codec, WM8904_CLOCK_RATES_2); snd_soc_update_bits(codec, WM8904_CLOCK_RATES_2, WM8904_SYSCLK_SRC, 0); /* This should be done on init() for bypass paths */ switch (wm8904->sysclk_src) { case WM8904_CLK_MCLK: dev_dbg(codec->dev, "Using %dHz MCLK\n", wm8904->mclk_rate); clock2 &= ~WM8904_SYSCLK_SRC; rate = wm8904->mclk_rate; /* Ensure the FLL is stopped */ snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1, WM8904_FLL_OSC_ENA | WM8904_FLL_ENA, 0); break; case WM8904_CLK_FLL: dev_dbg(codec->dev, "Using %dHz FLL clock\n", wm8904->fll_fout); clock2 |= WM8904_SYSCLK_SRC; rate = wm8904->fll_fout; break; default: dev_err(codec->dev, "System clock not configured\n"); return -EINVAL; } /* SYSCLK shouldn't be over 13.5MHz */ if (rate > 13500000) { clock0 = WM8904_MCLK_DIV; wm8904->sysclk_rate = rate / 2; } else { clock0 = 0; wm8904->sysclk_rate = rate; } snd_soc_update_bits(codec, WM8904_CLOCK_RATES_0, WM8904_MCLK_DIV, clock0); snd_soc_update_bits(codec, WM8904_CLOCK_RATES_2, WM8904_CLK_SYS_ENA | WM8904_SYSCLK_SRC, clock2); dev_dbg(codec->dev, "CLK_SYS is %dHz\n", wm8904->sysclk_rate); return 0; } static void wm8904_set_drc(struct snd_soc_codec *codec) { struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); struct wm8904_pdata *pdata = wm8904->pdata; int save, i; /* Save any enables; the configuration should clear them. */ save = snd_soc_read(codec, WM8904_DRC_0); for (i = 0; i < WM8904_DRC_REGS; i++) snd_soc_update_bits(codec, WM8904_DRC_0 + i, 0xffff, pdata->drc_cfgs[wm8904->drc_cfg].regs[i]); /* Reenable the DRC */ snd_soc_update_bits(codec, WM8904_DRC_0, WM8904_DRC_ENA | WM8904_DRC_DAC_PATH, save); } static int wm8904_put_drc_enum(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); struct wm8904_pdata *pdata = wm8904->pdata; int value = ucontrol->value.integer.value[0]; if (value >= pdata->num_drc_cfgs) return -EINVAL; wm8904->drc_cfg = value; wm8904_set_drc(codec); return 0; } static int wm8904_get_drc_enum(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); ucontrol->value.enumerated.item[0] = wm8904->drc_cfg; return 0; } static void wm8904_set_retune_mobile(struct snd_soc_codec *codec) { struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); struct wm8904_pdata *pdata = wm8904->pdata; int best, best_val, save, i, cfg; if (!pdata || !wm8904->num_retune_mobile_texts) return; /* Find the version of the currently selected configuration * with the nearest sample rate. */ cfg = wm8904->retune_mobile_cfg; best = 0; best_val = INT_MAX; for (i = 0; i < pdata->num_retune_mobile_cfgs; i++) { if (strcmp(pdata->retune_mobile_cfgs[i].name, wm8904->retune_mobile_texts[cfg]) == 0 && abs(pdata->retune_mobile_cfgs[i].rate - wm8904->fs) < best_val) { best = i; best_val = abs(pdata->retune_mobile_cfgs[i].rate - wm8904->fs); } } dev_dbg(codec->dev, "ReTune Mobile %s/%dHz for %dHz sample rate\n", pdata->retune_mobile_cfgs[best].name, pdata->retune_mobile_cfgs[best].rate, wm8904->fs); /* The EQ will be disabled while reconfiguring it, remember the * current configuration. */ save = snd_soc_read(codec, WM8904_EQ1); for (i = 0; i < WM8904_EQ_REGS; i++) snd_soc_update_bits(codec, WM8904_EQ1 + i, 0xffff, pdata->retune_mobile_cfgs[best].regs[i]); snd_soc_update_bits(codec, WM8904_EQ1, WM8904_EQ_ENA, save); } static int wm8904_put_retune_mobile_enum(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); struct wm8904_pdata *pdata = wm8904->pdata; int value = ucontrol->value.integer.value[0]; if (value >= pdata->num_retune_mobile_cfgs) return -EINVAL; wm8904->retune_mobile_cfg = value; wm8904_set_retune_mobile(codec); return 0; } static int wm8904_get_retune_mobile_enum(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); ucontrol->value.enumerated.item[0] = wm8904->retune_mobile_cfg; return 0; } static int deemph_settings[] = { 0, 32000, 44100, 48000 }; static int wm8904_set_deemph(struct snd_soc_codec *codec) { struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); int val, i, best; /* If we're using deemphasis select the nearest available sample * rate. */ if (wm8904->deemph) { best = 1; for (i = 2; i < ARRAY_SIZE(deemph_settings); i++) { if (abs(deemph_settings[i] - wm8904->fs) < abs(deemph_settings[best] - wm8904->fs)) best = i; } val = best << WM8904_DEEMPH_SHIFT; } else { val = 0; } dev_dbg(codec->dev, "Set deemphasis %d\n", val); return snd_soc_update_bits(codec, WM8904_DAC_DIGITAL_1, WM8904_DEEMPH_MASK, val); } static int wm8904_get_deemph(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); ucontrol->value.enumerated.item[0] = wm8904->deemph; return 0; } static int wm8904_put_deemph(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); int deemph = ucontrol->value.enumerated.item[0]; if (deemph > 1) return -EINVAL; wm8904->deemph = deemph; return wm8904_set_deemph(codec); } static const DECLARE_TLV_DB_SCALE(dac_boost_tlv, 0, 600, 0); static const DECLARE_TLV_DB_SCALE(digital_tlv, -7200, 75, 1); static const DECLARE_TLV_DB_SCALE(out_tlv, -5700, 100, 0); static const DECLARE_TLV_DB_SCALE(sidetone_tlv, -3600, 300, 0); static const DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0); static const char *input_mode_text[] = { "Single-Ended", "Differential Line", "Differential Mic" }; static const struct soc_enum lin_mode = SOC_ENUM_SINGLE(WM8904_ANALOGUE_LEFT_INPUT_1, 0, 3, input_mode_text); static const struct soc_enum rin_mode = SOC_ENUM_SINGLE(WM8904_ANALOGUE_RIGHT_INPUT_1, 0, 3, input_mode_text); static const char *hpf_mode_text[] = { "Hi-fi", "Voice 1", "Voice 2", "Voice 3" }; static const struct soc_enum hpf_mode = SOC_ENUM_SINGLE(WM8904_ADC_DIGITAL_0, 5, 4, hpf_mode_text); static const struct snd_kcontrol_new wm8904_adc_snd_controls[] = { SOC_DOUBLE_R_TLV("Digital Capture Volume", WM8904_ADC_DIGITAL_VOLUME_LEFT, WM8904_ADC_DIGITAL_VOLUME_RIGHT, 1, 119, 0, digital_tlv), SOC_ENUM("Left Caputure Mode", lin_mode), SOC_ENUM("Right Capture Mode", rin_mode), /* No TLV since it depends on mode */ SOC_DOUBLE_R("Capture Volume", WM8904_ANALOGUE_LEFT_INPUT_0, WM8904_ANALOGUE_RIGHT_INPUT_0, 0, 31, 0), SOC_DOUBLE_R("Capture Switch", WM8904_ANALOGUE_LEFT_INPUT_0, WM8904_ANALOGUE_RIGHT_INPUT_0, 7, 1, 1), SOC_SINGLE("High Pass Filter Switch", WM8904_ADC_DIGITAL_0, 4, 1, 0), SOC_ENUM("High Pass Filter Mode", hpf_mode), SOC_SINGLE("ADC 128x OSR Switch", WM8904_ANALOGUE_ADC_0, 0, 1, 0), }; static const char *drc_path_text[] = { "ADC", "DAC" }; static const struct soc_enum drc_path = SOC_ENUM_SINGLE(WM8904_DRC_0, 14, 2, drc_path_text); static const struct snd_kcontrol_new wm8904_dac_snd_controls[] = { SOC_SINGLE_TLV("Digital Playback Boost Volume", WM8904_AUDIO_INTERFACE_0, 9, 3, 0, dac_boost_tlv), SOC_DOUBLE_R_TLV("Digital Playback Volume", WM8904_DAC_DIGITAL_VOLUME_LEFT, WM8904_DAC_DIGITAL_VOLUME_RIGHT, 1, 96, 0, digital_tlv), SOC_DOUBLE_R_TLV("Headphone Volume", WM8904_ANALOGUE_OUT1_LEFT, WM8904_ANALOGUE_OUT1_RIGHT, 0, 63, 0, out_tlv), SOC_DOUBLE_R("Headphone Switch", WM8904_ANALOGUE_OUT1_LEFT, WM8904_ANALOGUE_OUT1_RIGHT, 8, 1, 1), SOC_DOUBLE_R("Headphone ZC Switch", WM8904_ANALOGUE_OUT1_LEFT, WM8904_ANALOGUE_OUT1_RIGHT, 6, 1, 0), SOC_DOUBLE_R_TLV("Line Output Volume", WM8904_ANALOGUE_OUT2_LEFT, WM8904_ANALOGUE_OUT2_RIGHT, 0, 63, 0, out_tlv), SOC_DOUBLE_R("Line Output Switch", WM8904_ANALOGUE_OUT2_LEFT, WM8904_ANALOGUE_OUT2_RIGHT, 8, 1, 1), SOC_DOUBLE_R("Line Output ZC Switch", WM8904_ANALOGUE_OUT2_LEFT, WM8904_ANALOGUE_OUT2_RIGHT, 6, 1, 0), SOC_SINGLE("EQ Switch", WM8904_EQ1, 0, 1, 0), SOC_SINGLE("DRC Switch", WM8904_DRC_0, 15, 1, 0), SOC_ENUM("DRC Path", drc_path), SOC_SINGLE("DAC OSRx2 Switch", WM8904_DAC_DIGITAL_1, 6, 1, 0), SOC_SINGLE_BOOL_EXT("DAC Deemphasis Switch", 0, wm8904_get_deemph, wm8904_put_deemph), }; static const struct snd_kcontrol_new wm8904_snd_controls[] = { SOC_DOUBLE_TLV("Digital Sidetone Volume", WM8904_DAC_DIGITAL_0, 4, 8, 15, 0, sidetone_tlv), }; static const struct snd_kcontrol_new wm8904_eq_controls[] = { SOC_SINGLE_TLV("EQ1 Volume", WM8904_EQ2, 0, 24, 0, eq_tlv), SOC_SINGLE_TLV("EQ2 Volume", WM8904_EQ3, 0, 24, 0, eq_tlv), SOC_SINGLE_TLV("EQ3 Volume", WM8904_EQ4, 0, 24, 0, eq_tlv), SOC_SINGLE_TLV("EQ4 Volume", WM8904_EQ5, 0, 24, 0, eq_tlv), SOC_SINGLE_TLV("EQ5 Volume", WM8904_EQ6, 0, 24, 0, eq_tlv), }; static int cp_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { BUG_ON(event != SND_SOC_DAPM_POST_PMU); /* Maximum startup time */ udelay(500); return 0; } static int sysclk_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { struct snd_soc_codec *codec = w->codec; struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); switch (event) { case SND_SOC_DAPM_PRE_PMU: /* If we're using the FLL then we only start it when * required; we assume that the configuration has been * done previously and all we need to do is kick it * off. */ switch (wm8904->sysclk_src) { case WM8904_CLK_FLL: snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1, WM8904_FLL_OSC_ENA, WM8904_FLL_OSC_ENA); snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1, WM8904_FLL_ENA, WM8904_FLL_ENA); break; default: break; } break; case SND_SOC_DAPM_POST_PMD: snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1, WM8904_FLL_OSC_ENA | WM8904_FLL_ENA, 0); break; } return 0; } static int out_pga_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { struct snd_soc_codec *codec = w->codec; struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); int reg, val; int dcs_mask; int dcs_l, dcs_r; int dcs_l_reg, dcs_r_reg; int timeout; int pwr_reg; /* This code is shared between HP and LINEOUT; we do all our * power management in stereo pairs to avoid latency issues so * we reuse shift to identify which rather than strcmp() the * name. */ reg = w->shift; switch (reg) { case WM8904_ANALOGUE_HP_0: pwr_reg = WM8904_POWER_MANAGEMENT_2; dcs_mask = WM8904_DCS_ENA_CHAN_0 | WM8904_DCS_ENA_CHAN_1; dcs_r_reg = WM8904_DC_SERVO_8; dcs_l_reg = WM8904_DC_SERVO_9; dcs_l = 0; dcs_r = 1; break; case WM8904_ANALOGUE_LINEOUT_0: pwr_reg = WM8904_POWER_MANAGEMENT_3; dcs_mask = WM8904_DCS_ENA_CHAN_2 | WM8904_DCS_ENA_CHAN_3; dcs_r_reg = WM8904_DC_SERVO_6; dcs_l_reg = WM8904_DC_SERVO_7; dcs_l = 2; dcs_r = 3; break; default: BUG(); return -EINVAL; } switch (event) { case SND_SOC_DAPM_PRE_PMU: /* Power on the PGAs */ snd_soc_update_bits(codec, pwr_reg, WM8904_HPL_PGA_ENA | WM8904_HPR_PGA_ENA, WM8904_HPL_PGA_ENA | WM8904_HPR_PGA_ENA); /* Power on the amplifier */ snd_soc_update_bits(codec, reg, WM8904_HPL_ENA | WM8904_HPR_ENA, WM8904_HPL_ENA | WM8904_HPR_ENA); /* Enable the first stage */ snd_soc_update_bits(codec, reg, WM8904_HPL_ENA_DLY | WM8904_HPR_ENA_DLY, WM8904_HPL_ENA_DLY | WM8904_HPR_ENA_DLY); /* Power up the DC servo */ snd_soc_update_bits(codec, WM8904_DC_SERVO_0, dcs_mask, dcs_mask); /* Either calibrate the DC servo or restore cached state * if we have that. */ if (wm8904->dcs_state[dcs_l] || wm8904->dcs_state[dcs_r]) { dev_dbg(codec->dev, "Restoring DC servo state\n"); snd_soc_write(codec, dcs_l_reg, wm8904->dcs_state[dcs_l]); snd_soc_write(codec, dcs_r_reg, wm8904->dcs_state[dcs_r]); snd_soc_write(codec, WM8904_DC_SERVO_1, dcs_mask); timeout = 20; } else { dev_dbg(codec->dev, "Calibrating DC servo\n"); snd_soc_write(codec, WM8904_DC_SERVO_1, dcs_mask << WM8904_DCS_TRIG_STARTUP_0_SHIFT); timeout = 500; } /* Wait for DC servo to complete */ dcs_mask <<= WM8904_DCS_CAL_COMPLETE_SHIFT; do { val = snd_soc_read(codec, WM8904_DC_SERVO_READBACK_0); if ((val & dcs_mask) == dcs_mask) break; msleep(1); } while (--timeout); if ((val & dcs_mask) != dcs_mask) dev_warn(codec->dev, "DC servo timed out\n"); else dev_dbg(codec->dev, "DC servo ready\n"); /* Enable the output stage */ snd_soc_update_bits(codec, reg, WM8904_HPL_ENA_OUTP | WM8904_HPR_ENA_OUTP, WM8904_HPL_ENA_OUTP | WM8904_HPR_ENA_OUTP); break; case SND_SOC_DAPM_POST_PMU: /* Unshort the output itself */ snd_soc_update_bits(codec, reg, WM8904_HPL_RMV_SHORT | WM8904_HPR_RMV_SHORT, WM8904_HPL_RMV_SHORT | WM8904_HPR_RMV_SHORT); break; case SND_SOC_DAPM_PRE_PMD: /* Short the output */ snd_soc_update_bits(codec, reg, WM8904_HPL_RMV_SHORT | WM8904_HPR_RMV_SHORT, 0); break; case SND_SOC_DAPM_POST_PMD: /* Cache the DC servo configuration; this will be * invalidated if we change the configuration. */ wm8904->dcs_state[dcs_l] = snd_soc_read(codec, dcs_l_reg); wm8904->dcs_state[dcs_r] = snd_soc_read(codec, dcs_r_reg); snd_soc_update_bits(codec, WM8904_DC_SERVO_0, dcs_mask, 0); /* Disable the amplifier input and output stages */ snd_soc_update_bits(codec, reg, WM8904_HPL_ENA | WM8904_HPR_ENA | WM8904_HPL_ENA_DLY | WM8904_HPR_ENA_DLY | WM8904_HPL_ENA_OUTP | WM8904_HPR_ENA_OUTP, 0); /* PGAs too */ snd_soc_update_bits(codec, pwr_reg, WM8904_HPL_PGA_ENA | WM8904_HPR_PGA_ENA, 0); break; } return 0; } static const char *lin_text[] = { "IN1L", "IN2L", "IN3L" }; static const struct soc_enum lin_enum = SOC_ENUM_SINGLE(WM8904_ANALOGUE_LEFT_INPUT_1, 2, 3, lin_text); static const struct snd_kcontrol_new lin_mux = SOC_DAPM_ENUM("Left Capture Mux", lin_enum); static const struct soc_enum lin_inv_enum = SOC_ENUM_SINGLE(WM8904_ANALOGUE_LEFT_INPUT_1, 4, 3, lin_text); static const struct snd_kcontrol_new lin_inv_mux = SOC_DAPM_ENUM("Left Capture Inveting Mux", lin_inv_enum); static const char *rin_text[] = { "IN1R", "IN2R", "IN3R" }; static const struct soc_enum rin_enum = SOC_ENUM_SINGLE(WM8904_ANALOGUE_RIGHT_INPUT_1, 2, 3, rin_text); static const struct snd_kcontrol_new rin_mux = SOC_DAPM_ENUM("Right Capture Mux", rin_enum); static const struct soc_enum rin_inv_enum = SOC_ENUM_SINGLE(WM8904_ANALOGUE_RIGHT_INPUT_1, 4, 3, rin_text); static const struct snd_kcontrol_new rin_inv_mux = SOC_DAPM_ENUM("Right Capture Inveting Mux", rin_inv_enum); static const char *aif_text[] = { "Left", "Right" }; static const struct soc_enum aifoutl_enum = SOC_ENUM_SINGLE(WM8904_AUDIO_INTERFACE_0, 7, 2, aif_text); static const struct snd_kcontrol_new aifoutl_mux = SOC_DAPM_ENUM("AIFOUTL Mux", aifoutl_enum); static const struct soc_enum aifoutr_enum = SOC_ENUM_SINGLE(WM8904_AUDIO_INTERFACE_0, 6, 2, aif_text); static const struct snd_kcontrol_new aifoutr_mux = SOC_DAPM_ENUM("AIFOUTR Mux", aifoutr_enum); static const struct soc_enum aifinl_enum = SOC_ENUM_SINGLE(WM8904_AUDIO_INTERFACE_0, 5, 2, aif_text); static const struct snd_kcontrol_new aifinl_mux = SOC_DAPM_ENUM("AIFINL Mux", aifinl_enum); static const struct soc_enum aifinr_enum = SOC_ENUM_SINGLE(WM8904_AUDIO_INTERFACE_0, 4, 2, aif_text); static const struct snd_kcontrol_new aifinr_mux = SOC_DAPM_ENUM("AIFINR Mux", aifinr_enum); static const struct snd_soc_dapm_widget wm8904_core_dapm_widgets[] = { SND_SOC_DAPM_SUPPLY("SYSCLK", WM8904_CLOCK_RATES_2, 2, 0, sysclk_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), SND_SOC_DAPM_SUPPLY("CLK_DSP", WM8904_CLOCK_RATES_2, 1, 0, NULL, 0), SND_SOC_DAPM_SUPPLY("TOCLK", WM8904_CLOCK_RATES_2, 0, 0, NULL, 0), }; static const struct snd_soc_dapm_widget wm8904_adc_dapm_widgets[] = { SND_SOC_DAPM_INPUT("IN1L"), SND_SOC_DAPM_INPUT("IN1R"), SND_SOC_DAPM_INPUT("IN2L"), SND_SOC_DAPM_INPUT("IN2R"), SND_SOC_DAPM_INPUT("IN3L"), SND_SOC_DAPM_INPUT("IN3R"), SND_SOC_DAPM_SUPPLY("MICBIAS", WM8904_MIC_BIAS_CONTROL_0, 0, 0, NULL, 0), SND_SOC_DAPM_MUX("Left Capture Mux", SND_SOC_NOPM, 0, 0, &lin_mux), SND_SOC_DAPM_MUX("Left Capture Inverting Mux", SND_SOC_NOPM, 0, 0, &lin_inv_mux), SND_SOC_DAPM_MUX("Right Capture Mux", SND_SOC_NOPM, 0, 0, &rin_mux), SND_SOC_DAPM_MUX("Right Capture Inverting Mux", SND_SOC_NOPM, 0, 0, &rin_inv_mux), SND_SOC_DAPM_PGA("Left Capture PGA", WM8904_POWER_MANAGEMENT_0, 1, 0, NULL, 0), SND_SOC_DAPM_PGA("Right Capture PGA", WM8904_POWER_MANAGEMENT_0, 0, 0, NULL, 0), SND_SOC_DAPM_ADC("ADCL", NULL, WM8904_POWER_MANAGEMENT_6, 1, 0), SND_SOC_DAPM_ADC("ADCR", NULL, WM8904_POWER_MANAGEMENT_6, 0, 0), SND_SOC_DAPM_MUX("AIFOUTL Mux", SND_SOC_NOPM, 0, 0, &aifoutl_mux), SND_SOC_DAPM_MUX("AIFOUTR Mux", SND_SOC_NOPM, 0, 0, &aifoutr_mux), SND_SOC_DAPM_AIF_OUT("AIFOUTL", "Capture", 0, SND_SOC_NOPM, 0, 0), SND_SOC_DAPM_AIF_OUT("AIFOUTR", "Capture", 1, SND_SOC_NOPM, 0, 0), }; static const struct snd_soc_dapm_widget wm8904_dac_dapm_widgets[] = { SND_SOC_DAPM_AIF_IN("AIFINL", "Playback", 0, SND_SOC_NOPM, 0, 0), SND_SOC_DAPM_AIF_IN("AIFINR", "Playback", 1, SND_SOC_NOPM, 0, 0), SND_SOC_DAPM_MUX("DACL Mux", SND_SOC_NOPM, 0, 0, &aifinl_mux), SND_SOC_DAPM_MUX("DACR Mux", SND_SOC_NOPM, 0, 0, &aifinr_mux), SND_SOC_DAPM_DAC("DACL", NULL, WM8904_POWER_MANAGEMENT_6, 3, 0), SND_SOC_DAPM_DAC("DACR", NULL, WM8904_POWER_MANAGEMENT_6, 2, 0), SND_SOC_DAPM_SUPPLY("Charge pump", WM8904_CHARGE_PUMP_0, 0, 0, cp_event, SND_SOC_DAPM_POST_PMU), SND_SOC_DAPM_PGA("HPL PGA", SND_SOC_NOPM, 1, 0, NULL, 0), SND_SOC_DAPM_PGA("HPR PGA", SND_SOC_NOPM, 0, 0, NULL, 0), SND_SOC_DAPM_PGA("LINEL PGA", SND_SOC_NOPM, 1, 0, NULL, 0), SND_SOC_DAPM_PGA("LINER PGA", SND_SOC_NOPM, 0, 0, NULL, 0), SND_SOC_DAPM_PGA_E("Headphone Output", SND_SOC_NOPM, WM8904_ANALOGUE_HP_0, 0, NULL, 0, out_pga_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD), SND_SOC_DAPM_PGA_E("Line Output", SND_SOC_NOPM, WM8904_ANALOGUE_LINEOUT_0, 0, NULL, 0, out_pga_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD), SND_SOC_DAPM_OUTPUT("HPOUTL"), SND_SOC_DAPM_OUTPUT("HPOUTR"), SND_SOC_DAPM_OUTPUT("LINEOUTL"), SND_SOC_DAPM_OUTPUT("LINEOUTR"), }; static const char *out_mux_text[] = { "DAC", "Bypass" }; static const struct soc_enum hpl_enum = SOC_ENUM_SINGLE(WM8904_ANALOGUE_OUT12_ZC, 3, 2, out_mux_text); static const struct snd_kcontrol_new hpl_mux = SOC_DAPM_ENUM("HPL Mux", hpl_enum); static const struct soc_enum hpr_enum = SOC_ENUM_SINGLE(WM8904_ANALOGUE_OUT12_ZC, 2, 2, out_mux_text); static const struct snd_kcontrol_new hpr_mux = SOC_DAPM_ENUM("HPR Mux", hpr_enum); static const struct soc_enum linel_enum = SOC_ENUM_SINGLE(WM8904_ANALOGUE_OUT12_ZC, 1, 2, out_mux_text); static const struct snd_kcontrol_new linel_mux = SOC_DAPM_ENUM("LINEL Mux", linel_enum); static const struct soc_enum liner_enum = SOC_ENUM_SINGLE(WM8904_ANALOGUE_OUT12_ZC, 0, 2, out_mux_text); static const struct snd_kcontrol_new liner_mux = SOC_DAPM_ENUM("LINEL Mux", liner_enum); static const char *sidetone_text[] = { "None", "Left", "Right" }; static const struct soc_enum dacl_sidetone_enum = SOC_ENUM_SINGLE(WM8904_DAC_DIGITAL_0, 2, 3, sidetone_text); static const struct snd_kcontrol_new dacl_sidetone_mux = SOC_DAPM_ENUM("Left Sidetone Mux", dacl_sidetone_enum); static const struct soc_enum dacr_sidetone_enum = SOC_ENUM_SINGLE(WM8904_DAC_DIGITAL_0, 0, 3, sidetone_text); static const struct snd_kcontrol_new dacr_sidetone_mux = SOC_DAPM_ENUM("Right Sidetone Mux", dacr_sidetone_enum); static const struct snd_soc_dapm_widget wm8904_dapm_widgets[] = { SND_SOC_DAPM_SUPPLY("Class G", WM8904_CLASS_W_0, 0, 1, NULL, 0), SND_SOC_DAPM_PGA("Left Bypass", SND_SOC_NOPM, 0, 0, NULL, 0), SND_SOC_DAPM_PGA("Right Bypass", SND_SOC_NOPM, 0, 0, NULL, 0), SND_SOC_DAPM_MUX("Left Sidetone", SND_SOC_NOPM, 0, 0, &dacl_sidetone_mux), SND_SOC_DAPM_MUX("Right Sidetone", SND_SOC_NOPM, 0, 0, &dacr_sidetone_mux), SND_SOC_DAPM_MUX("HPL Mux", SND_SOC_NOPM, 0, 0, &hpl_mux), SND_SOC_DAPM_MUX("HPR Mux", SND_SOC_NOPM, 0, 0, &hpr_mux), SND_SOC_DAPM_MUX("LINEL Mux", SND_SOC_NOPM, 0, 0, &linel_mux), SND_SOC_DAPM_MUX("LINER Mux", SND_SOC_NOPM, 0, 0, &liner_mux), }; static const struct snd_soc_dapm_route core_intercon[] = { { "CLK_DSP", NULL, "SYSCLK" }, { "TOCLK", NULL, "SYSCLK" }, }; static const struct snd_soc_dapm_route adc_intercon[] = { { "Left Capture Mux", "IN1L", "IN1L" }, { "Left Capture Mux", "IN2L", "IN2L" }, { "Left Capture Mux", "IN3L", "IN3L" }, { "Left Capture Inverting Mux", "IN1L", "IN1L" }, { "Left Capture Inverting Mux", "IN2L", "IN2L" }, { "Left Capture Inverting Mux", "IN3L", "IN3L" }, { "Right Capture Mux", "IN1R", "IN1R" }, { "Right Capture Mux", "IN2R", "IN2R" }, { "Right Capture Mux", "IN3R", "IN3R" }, { "Right Capture Inverting Mux", "IN1R", "IN1R" }, { "Right Capture Inverting Mux", "IN2R", "IN2R" }, { "Right Capture Inverting Mux", "IN3R", "IN3R" }, { "Left Capture PGA", NULL, "Left Capture Mux" }, { "Left Capture PGA", NULL, "Left Capture Inverting Mux" }, { "Right Capture PGA", NULL, "Right Capture Mux" }, { "Right Capture PGA", NULL, "Right Capture Inverting Mux" }, { "AIFOUTL", "Left", "ADCL" }, { "AIFOUTL", "Right", "ADCR" }, { "AIFOUTR", "Left", "ADCL" }, { "AIFOUTR", "Right", "ADCR" }, { "ADCL", NULL, "CLK_DSP" }, { "ADCL", NULL, "Left Capture PGA" }, { "ADCR", NULL, "CLK_DSP" }, { "ADCR", NULL, "Right Capture PGA" }, }; static const struct snd_soc_dapm_route dac_intercon[] = { { "DACL", "Right", "AIFINR" }, { "DACL", "Left", "AIFINL" }, { "DACL", NULL, "CLK_DSP" }, { "DACR", "Right", "AIFINR" }, { "DACR", "Left", "AIFINL" }, { "DACR", NULL, "CLK_DSP" }, { "Charge pump", NULL, "SYSCLK" }, { "Headphone Output", NULL, "HPL PGA" }, { "Headphone Output", NULL, "HPR PGA" }, { "Headphone Output", NULL, "Charge pump" }, { "Headphone Output", NULL, "TOCLK" }, { "Line Output", NULL, "LINEL PGA" }, { "Line Output", NULL, "LINER PGA" }, { "Line Output", NULL, "Charge pump" }, { "Line Output", NULL, "TOCLK" }, { "HPOUTL", NULL, "Headphone Output" }, { "HPOUTR", NULL, "Headphone Output" }, { "LINEOUTL", NULL, "Line Output" }, { "LINEOUTR", NULL, "Line Output" }, }; static const struct snd_soc_dapm_route wm8904_intercon[] = { { "Left Sidetone", "Left", "ADCL" }, { "Left Sidetone", "Right", "ADCR" }, { "DACL", NULL, "Left Sidetone" }, { "Right Sidetone", "Left", "ADCL" }, { "Right Sidetone", "Right", "ADCR" }, { "DACR", NULL, "Right Sidetone" }, { "Left Bypass", NULL, "Class G" }, { "Left Bypass", NULL, "Left Capture PGA" }, { "Right Bypass", NULL, "Class G" }, { "Right Bypass", NULL, "Right Capture PGA" }, { "HPL Mux", "DAC", "DACL" }, { "HPL Mux", "Bypass", "Left Bypass" }, { "HPR Mux", "DAC", "DACR" }, { "HPR Mux", "Bypass", "Right Bypass" }, { "LINEL Mux", "DAC", "DACL" }, { "LINEL Mux", "Bypass", "Left Bypass" }, { "LINER Mux", "DAC", "DACR" }, { "LINER Mux", "Bypass", "Right Bypass" }, { "HPL PGA", NULL, "HPL Mux" }, { "HPR PGA", NULL, "HPR Mux" }, { "LINEL PGA", NULL, "LINEL Mux" }, { "LINER PGA", NULL, "LINER Mux" }, }; static const struct snd_soc_dapm_route wm8912_intercon[] = { { "HPL PGA", NULL, "DACL" }, { "HPR PGA", NULL, "DACR" }, { "LINEL PGA", NULL, "DACL" }, { "LINER PGA", NULL, "DACR" }, }; static int wm8904_add_widgets(struct snd_soc_codec *codec) { struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); struct snd_soc_dapm_context *dapm = &codec->dapm; snd_soc_dapm_new_controls(dapm, wm8904_core_dapm_widgets, ARRAY_SIZE(wm8904_core_dapm_widgets)); snd_soc_dapm_add_routes(dapm, core_intercon, ARRAY_SIZE(core_intercon)); switch (wm8904->devtype) { case WM8904: snd_soc_add_controls(codec, wm8904_adc_snd_controls, ARRAY_SIZE(wm8904_adc_snd_controls)); snd_soc_add_controls(codec, wm8904_dac_snd_controls, ARRAY_SIZE(wm8904_dac_snd_controls)); snd_soc_add_controls(codec, wm8904_snd_controls, ARRAY_SIZE(wm8904_snd_controls)); snd_soc_dapm_new_controls(dapm, wm8904_adc_dapm_widgets, ARRAY_SIZE(wm8904_adc_dapm_widgets)); snd_soc_dapm_new_controls(dapm, wm8904_dac_dapm_widgets, ARRAY_SIZE(wm8904_dac_dapm_widgets)); snd_soc_dapm_new_controls(dapm, wm8904_dapm_widgets, ARRAY_SIZE(wm8904_dapm_widgets)); snd_soc_dapm_add_routes(dapm, core_intercon, ARRAY_SIZE(core_intercon)); snd_soc_dapm_add_routes(dapm, adc_intercon, ARRAY_SIZE(adc_intercon)); snd_soc_dapm_add_routes(dapm, dac_intercon, ARRAY_SIZE(dac_intercon)); snd_soc_dapm_add_routes(dapm, wm8904_intercon, ARRAY_SIZE(wm8904_intercon)); break; case WM8912: snd_soc_add_controls(codec, wm8904_dac_snd_controls, ARRAY_SIZE(wm8904_dac_snd_controls)); snd_soc_dapm_new_controls(dapm, wm8904_dac_dapm_widgets, ARRAY_SIZE(wm8904_dac_dapm_widgets)); snd_soc_dapm_add_routes(dapm, dac_intercon, ARRAY_SIZE(dac_intercon)); snd_soc_dapm_add_routes(dapm, wm8912_intercon, ARRAY_SIZE(wm8912_intercon)); break; } snd_soc_dapm_new_widgets(dapm); return 0; } static struct { int ratio; unsigned int clk_sys_rate; } clk_sys_rates[] = { { 64, 0 }, { 128, 1 }, { 192, 2 }, { 256, 3 }, { 384, 4 }, { 512, 5 }, { 786, 6 }, { 1024, 7 }, { 1408, 8 }, { 1536, 9 }, }; static struct { int rate; int sample_rate; } sample_rates[] = { { 8000, 0 }, { 11025, 1 }, { 12000, 1 }, { 16000, 2 }, { 22050, 3 }, { 24000, 3 }, { 32000, 4 }, { 44100, 5 }, { 48000, 5 }, }; static struct { int div; /* *10 due to .5s */ int bclk_div; } bclk_divs[] = { { 10, 0 }, { 15, 1 }, { 20, 2 }, { 30, 3 }, { 40, 4 }, { 50, 5 }, { 55, 6 }, { 60, 7 }, { 80, 8 }, { 100, 9 }, { 110, 10 }, { 120, 11 }, { 160, 12 }, { 200, 13 }, { 220, 14 }, { 240, 16 }, { 200, 17 }, { 320, 18 }, { 440, 19 }, { 480, 20 }, }; static int wm8904_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { struct snd_soc_codec *codec = dai->codec; struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); int ret, i, best, best_val, cur_val; unsigned int aif1 = 0; unsigned int aif2 = 0; unsigned int aif3 = 0; unsigned int clock1 = 0; unsigned int dac_digital1 = 0; /* What BCLK do we need? */ wm8904->fs = params_rate(params); if (wm8904->tdm_slots) { dev_dbg(codec->dev, "Configuring for %d %d bit TDM slots\n", wm8904->tdm_slots, wm8904->tdm_width); wm8904->bclk = snd_soc_calc_bclk(wm8904->fs, wm8904->tdm_width, 2, wm8904->tdm_slots); } else { wm8904->bclk = snd_soc_params_to_bclk(params); } switch (params_format(params)) { case SNDRV_PCM_FORMAT_S16_LE: break; case SNDRV_PCM_FORMAT_S20_3LE: aif1 |= 0x40; break; case SNDRV_PCM_FORMAT_S24_LE: aif1 |= 0x80; break; case SNDRV_PCM_FORMAT_S32_LE: aif1 |= 0xc0; break; default: return -EINVAL; } dev_dbg(codec->dev, "Target BCLK is %dHz\n", wm8904->bclk); ret = wm8904_configure_clocking(codec); if (ret != 0) return ret; /* Select nearest CLK_SYS_RATE */ best = 0; best_val = abs((wm8904->sysclk_rate / clk_sys_rates[0].ratio) - wm8904->fs); for (i = 1; i < ARRAY_SIZE(clk_sys_rates); i++) { cur_val = abs((wm8904->sysclk_rate / clk_sys_rates[i].ratio) - wm8904->fs); if (cur_val < best_val) { best = i; best_val = cur_val; } } dev_dbg(codec->dev, "Selected CLK_SYS_RATIO of %d\n", clk_sys_rates[best].ratio); clock1 |= (clk_sys_rates[best].clk_sys_rate << WM8904_CLK_SYS_RATE_SHIFT); /* SAMPLE_RATE */ best = 0; best_val = abs(wm8904->fs - sample_rates[0].rate); for (i = 1; i < ARRAY_SIZE(sample_rates); i++) { /* Closest match */ cur_val = abs(wm8904->fs - sample_rates[i].rate); if (cur_val < best_val) { best = i; best_val = cur_val; } } dev_dbg(codec->dev, "Selected SAMPLE_RATE of %dHz\n", sample_rates[best].rate); clock1 |= (sample_rates[best].sample_rate << WM8904_SAMPLE_RATE_SHIFT); /* Enable sloping stopband filter for low sample rates */ if (wm8904->fs <= 24000) dac_digital1 |= WM8904_DAC_SB_FILT; /* BCLK_DIV */ best = 0; best_val = INT_MAX; for (i = 0; i < ARRAY_SIZE(bclk_divs); i++) { cur_val = ((wm8904->sysclk_rate * 10) / bclk_divs[i].div) - wm8904->bclk; if (cur_val < 0) /* Table is sorted */ break; if (cur_val < best_val) { best = i; best_val = cur_val; } } wm8904->bclk = (wm8904->sysclk_rate * 10) / bclk_divs[best].div; dev_dbg(codec->dev, "Selected BCLK_DIV of %d for %dHz BCLK\n", bclk_divs[best].div, wm8904->bclk); aif2 |= bclk_divs[best].bclk_div; /* LRCLK is a simple fraction of BCLK */ dev_dbg(codec->dev, "LRCLK_RATE is %d\n", wm8904->bclk / wm8904->fs); aif3 |= wm8904->bclk / wm8904->fs; /* Apply the settings */ snd_soc_update_bits(codec, WM8904_DAC_DIGITAL_1, WM8904_DAC_SB_FILT, dac_digital1); snd_soc_update_bits(codec, WM8904_AUDIO_INTERFACE_1, WM8904_AIF_WL_MASK, aif1); snd_soc_update_bits(codec, WM8904_AUDIO_INTERFACE_2, WM8904_BCLK_DIV_MASK, aif2); snd_soc_update_bits(codec, WM8904_AUDIO_INTERFACE_3, WM8904_LRCLK_RATE_MASK, aif3); snd_soc_update_bits(codec, WM8904_CLOCK_RATES_1, WM8904_SAMPLE_RATE_MASK | WM8904_CLK_SYS_RATE_MASK, clock1); /* Update filters for the new settings */ wm8904_set_retune_mobile(codec); wm8904_set_deemph(codec); return 0; } static int wm8904_set_sysclk(struct snd_soc_dai *dai, int clk_id, unsigned int freq, int dir) { struct snd_soc_codec *codec = dai->codec; struct wm8904_priv *priv = snd_soc_codec_get_drvdata(codec); switch (clk_id) { case WM8904_CLK_MCLK: priv->sysclk_src = clk_id; priv->mclk_rate = freq; break; case WM8904_CLK_FLL: priv->sysclk_src = clk_id; break; default: return -EINVAL; } dev_dbg(dai->dev, "Clock source is %d at %uHz\n", clk_id, freq); wm8904_configure_clocking(codec); return 0; } static int wm8904_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) { struct snd_soc_codec *codec = dai->codec; unsigned int aif1 = 0; unsigned int aif3 = 0; switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { case SND_SOC_DAIFMT_CBS_CFS: break; case SND_SOC_DAIFMT_CBS_CFM: aif3 |= WM8904_LRCLK_DIR; break; case SND_SOC_DAIFMT_CBM_CFS: aif1 |= WM8904_BCLK_DIR; break; case SND_SOC_DAIFMT_CBM_CFM: aif1 |= WM8904_BCLK_DIR; aif3 |= WM8904_LRCLK_DIR; break; default: return -EINVAL; } switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { case SND_SOC_DAIFMT_DSP_B: aif1 |= WM8904_AIF_LRCLK_INV; case SND_SOC_DAIFMT_DSP_A: aif1 |= 0x3; break; case SND_SOC_DAIFMT_I2S: aif1 |= 0x2; break; case SND_SOC_DAIFMT_RIGHT_J: break; case SND_SOC_DAIFMT_LEFT_J: aif1 |= 0x1; break; default: return -EINVAL; } switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { case SND_SOC_DAIFMT_DSP_A: case SND_SOC_DAIFMT_DSP_B: /* frame inversion not valid for DSP modes */ switch (fmt & SND_SOC_DAIFMT_INV_MASK) { case SND_SOC_DAIFMT_NB_NF: break; case SND_SOC_DAIFMT_IB_NF: aif1 |= WM8904_AIF_BCLK_INV; break; default: return -EINVAL; } break; case SND_SOC_DAIFMT_I2S: case SND_SOC_DAIFMT_RIGHT_J: case SND_SOC_DAIFMT_LEFT_J: switch (fmt & SND_SOC_DAIFMT_INV_MASK) { case SND_SOC_DAIFMT_NB_NF: break; case SND_SOC_DAIFMT_IB_IF: aif1 |= WM8904_AIF_BCLK_INV | WM8904_AIF_LRCLK_INV; break; case SND_SOC_DAIFMT_IB_NF: aif1 |= WM8904_AIF_BCLK_INV; break; case SND_SOC_DAIFMT_NB_IF: aif1 |= WM8904_AIF_LRCLK_INV; break; default: return -EINVAL; } break; default: return -EINVAL; } snd_soc_update_bits(codec, WM8904_AUDIO_INTERFACE_1, WM8904_AIF_BCLK_INV | WM8904_AIF_LRCLK_INV | WM8904_AIF_FMT_MASK | WM8904_BCLK_DIR, aif1); snd_soc_update_bits(codec, WM8904_AUDIO_INTERFACE_3, WM8904_LRCLK_DIR, aif3); return 0; } static int wm8904_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) { struct snd_soc_codec *codec = dai->codec; struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); int aif1 = 0; /* Don't need to validate anything if we're turning off TDM */ if (slots == 0) goto out; /* Note that we allow configurations we can't handle ourselves - * for example, we can generate clocks for slots 2 and up even if * we can't use those slots ourselves. */ aif1 |= WM8904_AIFADC_TDM | WM8904_AIFDAC_TDM; switch (rx_mask) { case 3: break; case 0xc: aif1 |= WM8904_AIFADC_TDM_CHAN; break; default: return -EINVAL; } switch (tx_mask) { case 3: break; case 0xc: aif1 |= WM8904_AIFDAC_TDM_CHAN; break; default: return -EINVAL; } out: wm8904->tdm_width = slot_width; wm8904->tdm_slots = slots / 2; snd_soc_update_bits(codec, WM8904_AUDIO_INTERFACE_1, WM8904_AIFADC_TDM | WM8904_AIFADC_TDM_CHAN | WM8904_AIFDAC_TDM | WM8904_AIFDAC_TDM_CHAN, aif1); return 0; } struct _fll_div { u16 fll_fratio; u16 fll_outdiv; u16 fll_clk_ref_div; u16 n; u16 k; }; /* The size in bits of the FLL divide multiplied by 10 * to allow rounding later */ #define FIXED_FLL_SIZE ((1 << 16) * 10) static struct { unsigned int min; unsigned int max; u16 fll_fratio; int ratio; } fll_fratios[] = { { 0, 64000, 4, 16 }, { 64000, 128000, 3, 8 }, { 128000, 256000, 2, 4 }, { 256000, 1000000, 1, 2 }, { 1000000, 13500000, 0, 1 }, }; static int fll_factors(struct _fll_div *fll_div, unsigned int Fref, unsigned int Fout) { u64 Kpart; unsigned int K, Ndiv, Nmod, target; unsigned int div; int i; /* Fref must be <=13.5MHz */ div = 1; fll_div->fll_clk_ref_div = 0; while ((Fref / div) > 13500000) { div *= 2; fll_div->fll_clk_ref_div++; if (div > 8) { pr_err("Can't scale %dMHz input down to <=13.5MHz\n", Fref); return -EINVAL; } } pr_debug("Fref=%u Fout=%u\n", Fref, Fout); /* Apply the division for our remaining calculations */ Fref /= div; /* Fvco should be 90-100MHz; don't check the upper bound */ div = 4; while (Fout * div < 90000000) { div++; if (div > 64) { pr_err("Unable to find FLL_OUTDIV for Fout=%uHz\n", Fout); return -EINVAL; } } target = Fout * div; fll_div->fll_outdiv = div - 1; pr_debug("Fvco=%dHz\n", target); /* Find an appropriate FLL_FRATIO and factor it out of the target */ for (i = 0; i < ARRAY_SIZE(fll_fratios); i++) { if (fll_fratios[i].min <= Fref && Fref <= fll_fratios[i].max) { fll_div->fll_fratio = fll_fratios[i].fll_fratio; target /= fll_fratios[i].ratio; break; } } if (i == ARRAY_SIZE(fll_fratios)) { pr_err("Unable to find FLL_FRATIO for Fref=%uHz\n", Fref); return -EINVAL; } /* Now, calculate N.K */ Ndiv = target / Fref; fll_div->n = Ndiv; Nmod = target % Fref; pr_debug("Nmod=%d\n", Nmod); /* Calculate fractional part - scale up so we can round. */ Kpart = FIXED_FLL_SIZE * (long long)Nmod; do_div(Kpart, Fref); K = Kpart & 0xFFFFFFFF; if ((K % 10) >= 5) K += 5; /* Move down to proper range now rounding is done */ fll_div->k = K / 10; pr_debug("N=%x K=%x FLL_FRATIO=%x FLL_OUTDIV=%x FLL_CLK_REF_DIV=%x\n", fll_div->n, fll_div->k, fll_div->fll_fratio, fll_div->fll_outdiv, fll_div->fll_clk_ref_div); return 0; } static int wm8904_set_fll(struct snd_soc_dai *dai, int fll_id, int source, unsigned int Fref, unsigned int Fout) { struct snd_soc_codec *codec = dai->codec; struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); struct _fll_div fll_div; int ret, val; int clock2, fll1; /* Any change? */ if (source == wm8904->fll_src && Fref == wm8904->fll_fref && Fout == wm8904->fll_fout) return 0; clock2 = snd_soc_read(codec, WM8904_CLOCK_RATES_2); if (Fout == 0) { dev_dbg(codec->dev, "FLL disabled\n"); wm8904->fll_fref = 0; wm8904->fll_fout = 0; /* Gate SYSCLK to avoid glitches */ snd_soc_update_bits(codec, WM8904_CLOCK_RATES_2, WM8904_CLK_SYS_ENA, 0); snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1, WM8904_FLL_OSC_ENA | WM8904_FLL_ENA, 0); goto out; } /* Validate the FLL ID */ switch (source) { case WM8904_FLL_MCLK: case WM8904_FLL_LRCLK: case WM8904_FLL_BCLK: ret = fll_factors(&fll_div, Fref, Fout); if (ret != 0) return ret; break; case WM8904_FLL_FREE_RUNNING: dev_dbg(codec->dev, "Using free running FLL\n"); /* Force 12MHz and output/4 for now */ Fout = 12000000; Fref = 12000000; memset(&fll_div, 0, sizeof(fll_div)); fll_div.fll_outdiv = 3; break; default: dev_err(codec->dev, "Unknown FLL ID %d\n", fll_id); return -EINVAL; } /* Save current state then disable the FLL and SYSCLK to avoid * misclocking */ fll1 = snd_soc_read(codec, WM8904_FLL_CONTROL_1); snd_soc_update_bits(codec, WM8904_CLOCK_RATES_2, WM8904_CLK_SYS_ENA, 0); snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1, WM8904_FLL_OSC_ENA | WM8904_FLL_ENA, 0); /* Unlock forced oscilator control to switch it on/off */ snd_soc_update_bits(codec, WM8904_CONTROL_INTERFACE_TEST_1, WM8904_USER_KEY, WM8904_USER_KEY); if (fll_id == WM8904_FLL_FREE_RUNNING) { val = WM8904_FLL_FRC_NCO; } else { val = 0; } snd_soc_update_bits(codec, WM8904_FLL_NCO_TEST_1, WM8904_FLL_FRC_NCO, val); snd_soc_update_bits(codec, WM8904_CONTROL_INTERFACE_TEST_1, WM8904_USER_KEY, 0); switch (fll_id) { case WM8904_FLL_MCLK: snd_soc_update_bits(codec, WM8904_FLL_CONTROL_5, WM8904_FLL_CLK_REF_SRC_MASK, 0); break; case WM8904_FLL_LRCLK: snd_soc_update_bits(codec, WM8904_FLL_CONTROL_5, WM8904_FLL_CLK_REF_SRC_MASK, 1); break; case WM8904_FLL_BCLK: snd_soc_update_bits(codec, WM8904_FLL_CONTROL_5, WM8904_FLL_CLK_REF_SRC_MASK, 2); break; } if (fll_div.k) val = WM8904_FLL_FRACN_ENA; else val = 0; snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1, WM8904_FLL_FRACN_ENA, val); snd_soc_update_bits(codec, WM8904_FLL_CONTROL_2, WM8904_FLL_OUTDIV_MASK | WM8904_FLL_FRATIO_MASK, (fll_div.fll_outdiv << WM8904_FLL_OUTDIV_SHIFT) | (fll_div.fll_fratio << WM8904_FLL_FRATIO_SHIFT)); snd_soc_write(codec, WM8904_FLL_CONTROL_3, fll_div.k); snd_soc_update_bits(codec, WM8904_FLL_CONTROL_4, WM8904_FLL_N_MASK, fll_div.n << WM8904_FLL_N_SHIFT); snd_soc_update_bits(codec, WM8904_FLL_CONTROL_5, WM8904_FLL_CLK_REF_DIV_MASK, fll_div.fll_clk_ref_div << WM8904_FLL_CLK_REF_DIV_SHIFT); dev_dbg(codec->dev, "FLL configured for %dHz->%dHz\n", Fref, Fout); wm8904->fll_fref = Fref; wm8904->fll_fout = Fout; wm8904->fll_src = source; /* Enable the FLL if it was previously active */ snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1, WM8904_FLL_OSC_ENA, fll1); snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1, WM8904_FLL_ENA, fll1); out: /* Reenable SYSCLK if it was previously active */ snd_soc_update_bits(codec, WM8904_CLOCK_RATES_2, WM8904_CLK_SYS_ENA, clock2); return 0; } static int wm8904_digital_mute(struct snd_soc_dai *codec_dai, int mute) { struct snd_soc_codec *codec = codec_dai->codec; int val; if (mute) val = WM8904_DAC_MUTE; else val = 0; snd_soc_update_bits(codec, WM8904_DAC_DIGITAL_1, WM8904_DAC_MUTE, val); return 0; } static int wm8904_set_bias_level(struct snd_soc_codec *codec, enum snd_soc_bias_level level) { struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); int ret; switch (level) { case SND_SOC_BIAS_ON: break; case SND_SOC_BIAS_PREPARE: /* VMID resistance 2*50k */ snd_soc_update_bits(codec, WM8904_VMID_CONTROL_0, WM8904_VMID_RES_MASK, 0x1 << WM8904_VMID_RES_SHIFT); /* Normal bias current */ snd_soc_update_bits(codec, WM8904_BIAS_CONTROL_0, WM8904_ISEL_MASK, 2 << WM8904_ISEL_SHIFT); break; case SND_SOC_BIAS_STANDBY: if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { ret = regulator_bulk_enable(ARRAY_SIZE(wm8904->supplies), wm8904->supplies); if (ret != 0) { dev_err(codec->dev, "Failed to enable supplies: %d\n", ret); return ret; } snd_soc_cache_sync(codec); /* Enable bias */ snd_soc_update_bits(codec, WM8904_BIAS_CONTROL_0, WM8904_BIAS_ENA, WM8904_BIAS_ENA); /* Enable VMID, VMID buffering, 2*5k resistance */ snd_soc_update_bits(codec, WM8904_VMID_CONTROL_0, WM8904_VMID_ENA | WM8904_VMID_RES_MASK, WM8904_VMID_ENA | 0x3 << WM8904_VMID_RES_SHIFT); /* Let VMID ramp */ msleep(1); } /* Maintain VMID with 2*250k */ snd_soc_update_bits(codec, WM8904_VMID_CONTROL_0, WM8904_VMID_RES_MASK, 0x2 << WM8904_VMID_RES_SHIFT); /* Bias current *0.5 */ snd_soc_update_bits(codec, WM8904_BIAS_CONTROL_0, WM8904_ISEL_MASK, 0); break; case SND_SOC_BIAS_OFF: /* Turn off VMID */ snd_soc_update_bits(codec, WM8904_VMID_CONTROL_0, WM8904_VMID_RES_MASK | WM8904_VMID_ENA, 0); /* Stop bias generation */ snd_soc_update_bits(codec, WM8904_BIAS_CONTROL_0, WM8904_BIAS_ENA, 0); #ifdef CONFIG_REGULATOR /* Post 2.6.34 we will be able to get a callback when * the regulators are disabled which we can use but * for now just assume that the power will be cut if * the regulator API is in use. */ codec->cache_sync = 1; #endif regulator_bulk_disable(ARRAY_SIZE(wm8904->supplies), wm8904->supplies); break; } codec->dapm.bias_level = level; return 0; } #define WM8904_RATES SNDRV_PCM_RATE_8000_96000 #define WM8904_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) static const struct snd_soc_dai_ops wm8904_dai_ops = { .set_sysclk = wm8904_set_sysclk, .set_fmt = wm8904_set_fmt, .set_tdm_slot = wm8904_set_tdm_slot, .set_pll = wm8904_set_fll, .hw_params = wm8904_hw_params, .digital_mute = wm8904_digital_mute, }; static struct snd_soc_dai_driver wm8904_dai = { .name = "wm8904-hifi", .playback = { .stream_name = "Playback", .channels_min = 2, .channels_max = 2, .rates = WM8904_RATES, .formats = WM8904_FORMATS, }, .capture = { .stream_name = "Capture", .channels_min = 2, .channels_max = 2, .rates = WM8904_RATES, .formats = WM8904_FORMATS, }, .ops = &wm8904_dai_ops, .symmetric_rates = 1, }; #ifdef CONFIG_PM static int wm8904_suspend(struct snd_soc_codec *codec) { wm8904_set_bias_level(codec, SND_SOC_BIAS_OFF); return 0; } static int wm8904_resume(struct snd_soc_codec *codec) { wm8904_set_bias_level(codec, SND_SOC_BIAS_STANDBY); return 0; } #else #define wm8904_suspend NULL #define wm8904_resume NULL #endif static void wm8904_handle_retune_mobile_pdata(struct snd_soc_codec *codec) { struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); struct wm8904_pdata *pdata = wm8904->pdata; struct snd_kcontrol_new control = SOC_ENUM_EXT("EQ Mode", wm8904->retune_mobile_enum, wm8904_get_retune_mobile_enum, wm8904_put_retune_mobile_enum); int ret, i, j; const char **t; /* We need an array of texts for the enum API but the number * of texts is likely to be less than the number of * configurations due to the sample rate dependency of the * configurations. */ wm8904->num_retune_mobile_texts = 0; wm8904->retune_mobile_texts = NULL; for (i = 0; i < pdata->num_retune_mobile_cfgs; i++) { for (j = 0; j < wm8904->num_retune_mobile_texts; j++) { if (strcmp(pdata->retune_mobile_cfgs[i].name, wm8904->retune_mobile_texts[j]) == 0) break; } if (j != wm8904->num_retune_mobile_texts) continue; /* Expand the array... */ t = krealloc(wm8904->retune_mobile_texts, sizeof(char *) * (wm8904->num_retune_mobile_texts + 1), GFP_KERNEL); if (t == NULL) continue; /* ...store the new entry... */ t[wm8904->num_retune_mobile_texts] = pdata->retune_mobile_cfgs[i].name; /* ...and remember the new version. */ wm8904->num_retune_mobile_texts++; wm8904->retune_mobile_texts = t; } dev_dbg(codec->dev, "Allocated %d unique ReTune Mobile names\n", wm8904->num_retune_mobile_texts); wm8904->retune_mobile_enum.max = wm8904->num_retune_mobile_texts; wm8904->retune_mobile_enum.texts = wm8904->retune_mobile_texts; ret = snd_soc_add_controls(codec, &control, 1); if (ret != 0) dev_err(codec->dev, "Failed to add ReTune Mobile control: %d\n", ret); } static void wm8904_handle_pdata(struct snd_soc_codec *codec) { struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); struct wm8904_pdata *pdata = wm8904->pdata; int ret, i; if (!pdata) { snd_soc_add_controls(codec, wm8904_eq_controls, ARRAY_SIZE(wm8904_eq_controls)); return; } dev_dbg(codec->dev, "%d DRC configurations\n", pdata->num_drc_cfgs); if (pdata->num_drc_cfgs) { struct snd_kcontrol_new control = SOC_ENUM_EXT("DRC Mode", wm8904->drc_enum, wm8904_get_drc_enum, wm8904_put_drc_enum); /* We need an array of texts for the enum API */ wm8904->drc_texts = kmalloc(sizeof(char *) * pdata->num_drc_cfgs, GFP_KERNEL); if (!wm8904->drc_texts) { dev_err(codec->dev, "Failed to allocate %d DRC config texts\n", pdata->num_drc_cfgs); return; } for (i = 0; i < pdata->num_drc_cfgs; i++) wm8904->drc_texts[i] = pdata->drc_cfgs[i].name; wm8904->drc_enum.max = pdata->num_drc_cfgs; wm8904->drc_enum.texts = wm8904->drc_texts; ret = snd_soc_add_controls(codec, &control, 1); if (ret != 0) dev_err(codec->dev, "Failed to add DRC mode control: %d\n", ret); wm8904_set_drc(codec); } dev_dbg(codec->dev, "%d ReTune Mobile configurations\n", pdata->num_retune_mobile_cfgs); if (pdata->num_retune_mobile_cfgs) wm8904_handle_retune_mobile_pdata(codec); else snd_soc_add_controls(codec, wm8904_eq_controls, ARRAY_SIZE(wm8904_eq_controls)); } static int wm8904_probe(struct snd_soc_codec *codec) { struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); struct wm8904_pdata *pdata = wm8904->pdata; u16 *reg_cache = codec->reg_cache; int ret, i; codec->cache_sync = 1; codec->dapm.idle_bias_off = 1; switch (wm8904->devtype) { case WM8904: break; case WM8912: memset(&wm8904_dai.capture, 0, sizeof(wm8904_dai.capture)); break; default: dev_err(codec->dev, "Unknown device type %d\n", wm8904->devtype); return -EINVAL; } ret = snd_soc_codec_set_cache_io(codec, 8, 16, SND_SOC_I2C); if (ret != 0) { dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); return ret; } for (i = 0; i < ARRAY_SIZE(wm8904->supplies); i++) wm8904->supplies[i].supply = wm8904_supply_names[i]; ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8904->supplies), wm8904->supplies); if (ret != 0) { dev_err(codec->dev, "Failed to request supplies: %d\n", ret); return ret; } ret = regulator_bulk_enable(ARRAY_SIZE(wm8904->supplies), wm8904->supplies); if (ret != 0) { dev_err(codec->dev, "Failed to enable supplies: %d\n", ret); goto err_get; } ret = snd_soc_read(codec, WM8904_SW_RESET_AND_ID); if (ret < 0) { dev_err(codec->dev, "Failed to read ID register\n"); goto err_enable; } if (ret != wm8904_reg[WM8904_SW_RESET_AND_ID]) { dev_err(codec->dev, "Device is not a WM8904, ID is %x\n", ret); ret = -EINVAL; goto err_enable; } ret = snd_soc_read(codec, WM8904_REVISION); if (ret < 0) { dev_err(codec->dev, "Failed to read device revision: %d\n", ret); goto err_enable; } dev_info(codec->dev, "revision %c\n", ret + 'A'); ret = wm8904_reset(codec); if (ret < 0) { dev_err(codec->dev, "Failed to issue reset\n"); goto err_enable; } /* Change some default settings - latch VU and enable ZC */ snd_soc_update_bits(codec, WM8904_ADC_DIGITAL_VOLUME_LEFT, WM8904_ADC_VU, WM8904_ADC_VU); snd_soc_update_bits(codec, WM8904_ADC_DIGITAL_VOLUME_RIGHT, WM8904_ADC_VU, WM8904_ADC_VU); snd_soc_update_bits(codec, WM8904_DAC_DIGITAL_VOLUME_LEFT, WM8904_DAC_VU, WM8904_DAC_VU); snd_soc_update_bits(codec, WM8904_DAC_DIGITAL_VOLUME_RIGHT, WM8904_DAC_VU, WM8904_DAC_VU); snd_soc_update_bits(codec, WM8904_ANALOGUE_OUT1_LEFT, WM8904_HPOUT_VU | WM8904_HPOUTLZC, WM8904_HPOUT_VU | WM8904_HPOUTLZC); snd_soc_update_bits(codec, WM8904_ANALOGUE_OUT1_RIGHT, WM8904_HPOUT_VU | WM8904_HPOUTRZC, WM8904_HPOUT_VU | WM8904_HPOUTRZC); snd_soc_update_bits(codec, WM8904_ANALOGUE_OUT2_LEFT, WM8904_LINEOUT_VU | WM8904_LINEOUTLZC, WM8904_LINEOUT_VU | WM8904_LINEOUTLZC); snd_soc_update_bits(codec, WM8904_ANALOGUE_OUT2_RIGHT, WM8904_LINEOUT_VU | WM8904_LINEOUTRZC, WM8904_LINEOUT_VU | WM8904_LINEOUTRZC); snd_soc_update_bits(codec, WM8904_CLOCK_RATES_0, WM8904_SR_MODE, 0); /* Apply configuration from the platform data. */ if (wm8904->pdata) { for (i = 0; i < WM8904_GPIO_REGS; i++) { if (!pdata->gpio_cfg[i]) continue; reg_cache[WM8904_GPIO_CONTROL_1 + i] = pdata->gpio_cfg[i] & 0xffff; } /* Zero is the default value for these anyway */ for (i = 0; i < WM8904_MIC_REGS; i++) reg_cache[WM8904_MIC_BIAS_CONTROL_0 + i] = pdata->mic_cfg[i]; } /* Set Class W by default - this will be managed by the Class * G widget at runtime where bypass paths are available. */ snd_soc_update_bits(codec, WM8904_CLASS_W_0, WM8904_CP_DYN_PWR, WM8904_CP_DYN_PWR); /* Use normal bias source */ snd_soc_update_bits(codec, WM8904_BIAS_CONTROL_0, WM8904_POBCTRL, 0); wm8904_set_bias_level(codec, SND_SOC_BIAS_STANDBY); /* Bias level configuration will have done an extra enable */ regulator_bulk_disable(ARRAY_SIZE(wm8904->supplies), wm8904->supplies); wm8904_handle_pdata(codec); wm8904_add_widgets(codec); return 0; err_enable: regulator_bulk_disable(ARRAY_SIZE(wm8904->supplies), wm8904->supplies); err_get: regulator_bulk_free(ARRAY_SIZE(wm8904->supplies), wm8904->supplies); return ret; } static int wm8904_remove(struct snd_soc_codec *codec) { struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); wm8904_set_bias_level(codec, SND_SOC_BIAS_OFF); regulator_bulk_free(ARRAY_SIZE(wm8904->supplies), wm8904->supplies); kfree(wm8904->retune_mobile_texts); kfree(wm8904->drc_texts); return 0; } static struct snd_soc_codec_driver soc_codec_dev_wm8904 = { .probe = wm8904_probe, .remove = wm8904_remove, .suspend = wm8904_suspend, .resume = wm8904_resume, .set_bias_level = wm8904_set_bias_level, .reg_cache_size = ARRAY_SIZE(wm8904_reg), .reg_word_size = sizeof(u16), .reg_cache_default = wm8904_reg, .volatile_register = wm8904_volatile_register, }; static __devinit int wm8904_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct wm8904_priv *wm8904; int ret; wm8904 = devm_kzalloc(&i2c->dev, sizeof(struct wm8904_priv), GFP_KERNEL); if (wm8904 == NULL) return -ENOMEM; wm8904->devtype = id->driver_data; i2c_set_clientdata(i2c, wm8904); wm8904->pdata = i2c->dev.platform_data; ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_wm8904, &wm8904_dai, 1); return ret; } static __devexit int wm8904_i2c_remove(struct i2c_client *client) { snd_soc_unregister_codec(&client->dev); return 0; } static const struct i2c_device_id wm8904_i2c_id[] = { { "wm8904", WM8904 }, { "wm8912", WM8912 }, { "wm8918", WM8904 }, /* Actually a subset, updates to follow */ { } }; MODULE_DEVICE_TABLE(i2c, wm8904_i2c_id); static struct i2c_driver wm8904_i2c_driver = { .driver = { .name = "wm8904", .owner = THIS_MODULE, }, .probe = wm8904_i2c_probe, .remove = __devexit_p(wm8904_i2c_remove), .id_table = wm8904_i2c_id, }; static int __init wm8904_modinit(void) { int ret = 0; ret = i2c_add_driver(&wm8904_i2c_driver); if (ret != 0) { printk(KERN_ERR "Failed to register wm8904 I2C driver: %d\n", ret); } return ret; } module_init(wm8904_modinit); static void __exit wm8904_exit(void) { i2c_del_driver(&wm8904_i2c_driver); } module_exit(wm8904_exit); MODULE_DESCRIPTION("ASoC WM8904 driver"); MODULE_AUTHOR("Mark Brown "); MODULE_LICENSE("GPL");