1 /* 2 * fsl_asrc.h - Freescale ASRC ALSA SoC header file 3 * 4 * Copyright (C) 2014 Freescale Semiconductor, Inc. 5 * 6 * Author: Nicolin Chen <nicoleotsuka@gmail.com> 7 * 8 * This file is licensed under the terms of the GNU General Public License 9 * version 2. This program is licensed "as is" without any warranty of any 10 * kind, whether express or implied. 11 */ 12 13 #ifndef _FSL_ASRC_H 14 #define _FSL_ASRC_H 15 16 #define IN 0 17 #define OUT 1 18 19 #define ASRC_DMA_BUFFER_NUM 2 20 #define ASRC_INPUTFIFO_THRESHOLD 32 21 #define ASRC_OUTPUTFIFO_THRESHOLD 32 22 #define ASRC_FIFO_THRESHOLD_MIN 0 23 #define ASRC_FIFO_THRESHOLD_MAX 63 24 #define ASRC_DMA_BUFFER_SIZE (1024 * 48 * 4) 25 #define ASRC_MAX_BUFFER_SIZE (1024 * 48) 26 #define ASRC_OUTPUT_LAST_SAMPLE 8 27 28 #define IDEAL_RATIO_RATE 1000000 29 30 #define REG_ASRCTR 0x00 31 #define REG_ASRIER 0x04 32 #define REG_ASRCNCR 0x0C 33 #define REG_ASRCFG 0x10 34 #define REG_ASRCSR 0x14 35 36 #define REG_ASRCDR1 0x18 37 #define REG_ASRCDR2 0x1C 38 #define REG_ASRCDR(i) ((i < 2) ? REG_ASRCDR1 : REG_ASRCDR2) 39 40 #define REG_ASRSTR 0x20 41 #define REG_ASRRA 0x24 42 #define REG_ASRRB 0x28 43 #define REG_ASRRC 0x2C 44 #define REG_ASRPM1 0x40 45 #define REG_ASRPM2 0x44 46 #define REG_ASRPM3 0x48 47 #define REG_ASRPM4 0x4C 48 #define REG_ASRPM5 0x50 49 #define REG_ASRTFR1 0x54 50 #define REG_ASRCCR 0x5C 51 52 #define REG_ASRDIA 0x60 53 #define REG_ASRDOA 0x64 54 #define REG_ASRDIB 0x68 55 #define REG_ASRDOB 0x6C 56 #define REG_ASRDIC 0x70 57 #define REG_ASRDOC 0x74 58 #define REG_ASRDI(i) (REG_ASRDIA + (i << 3)) 59 #define REG_ASRDO(i) (REG_ASRDOA + (i << 3)) 60 #define REG_ASRDx(x, i) (x == IN ? REG_ASRDI(i) : REG_ASRDO(i)) 61 62 #define REG_ASRIDRHA 0x80 63 #define REG_ASRIDRLA 0x84 64 #define REG_ASRIDRHB 0x88 65 #define REG_ASRIDRLB 0x8C 66 #define REG_ASRIDRHC 0x90 67 #define REG_ASRIDRLC 0x94 68 #define REG_ASRIDRH(i) (REG_ASRIDRHA + (i << 3)) 69 #define REG_ASRIDRL(i) (REG_ASRIDRLA + (i << 3)) 70 71 #define REG_ASR76K 0x98 72 #define REG_ASR56K 0x9C 73 74 #define REG_ASRMCRA 0xA0 75 #define REG_ASRFSTA 0xA4 76 #define REG_ASRMCRB 0xA8 77 #define REG_ASRFSTB 0xAC 78 #define REG_ASRMCRC 0xB0 79 #define REG_ASRFSTC 0xB4 80 #define REG_ASRMCR(i) (REG_ASRMCRA + (i << 3)) 81 #define REG_ASRFST(i) (REG_ASRFSTA + (i << 3)) 82 83 #define REG_ASRMCR1A 0xC0 84 #define REG_ASRMCR1B 0xC4 85 #define REG_ASRMCR1C 0xC8 86 #define REG_ASRMCR1(i) (REG_ASRMCR1A + (i << 2)) 87 88 89 /* REG0 0x00 REG_ASRCTR */ 90 #define ASRCTR_ATSi_SHIFT(i) (20 + i) 91 #define ASRCTR_ATSi_MASK(i) (1 << ASRCTR_ATSi_SHIFT(i)) 92 #define ASRCTR_ATS(i) (1 << ASRCTR_ATSi_SHIFT(i)) 93 #define ASRCTR_USRi_SHIFT(i) (14 + (i << 1)) 94 #define ASRCTR_USRi_MASK(i) (1 << ASRCTR_USRi_SHIFT(i)) 95 #define ASRCTR_USR(i) (1 << ASRCTR_USRi_SHIFT(i)) 96 #define ASRCTR_IDRi_SHIFT(i) (13 + (i << 1)) 97 #define ASRCTR_IDRi_MASK(i) (1 << ASRCTR_IDRi_SHIFT(i)) 98 #define ASRCTR_IDR(i) (1 << ASRCTR_IDRi_SHIFT(i)) 99 #define ASRCTR_SRST_SHIFT 4 100 #define ASRCTR_SRST_MASK (1 << ASRCTR_SRST_SHIFT) 101 #define ASRCTR_SRST (1 << ASRCTR_SRST_SHIFT) 102 #define ASRCTR_ASRCEi_SHIFT(i) (1 + i) 103 #define ASRCTR_ASRCEi_MASK(i) (1 << ASRCTR_ASRCEi_SHIFT(i)) 104 #define ASRCTR_ASRCE(i) (1 << ASRCTR_ASRCEi_SHIFT(i)) 105 #define ASRCTR_ASRCEi_ALL_MASK (0x7 << ASRCTR_ASRCEi_SHIFT(0)) 106 #define ASRCTR_ASRCEN_SHIFT 0 107 #define ASRCTR_ASRCEN_MASK (1 << ASRCTR_ASRCEN_SHIFT) 108 #define ASRCTR_ASRCEN (1 << ASRCTR_ASRCEN_SHIFT) 109 110 /* REG1 0x04 REG_ASRIER */ 111 #define ASRIER_AFPWE_SHIFT 7 112 #define ASRIER_AFPWE_MASK (1 << ASRIER_AFPWE_SHIFT) 113 #define ASRIER_AFPWE (1 << ASRIER_AFPWE_SHIFT) 114 #define ASRIER_AOLIE_SHIFT 6 115 #define ASRIER_AOLIE_MASK (1 << ASRIER_AOLIE_SHIFT) 116 #define ASRIER_AOLIE (1 << ASRIER_AOLIE_SHIFT) 117 #define ASRIER_ADOEi_SHIFT(i) (3 + i) 118 #define ASRIER_ADOEi_MASK(i) (1 << ASRIER_ADOEi_SHIFT(i)) 119 #define ASRIER_ADOE(i) (1 << ASRIER_ADOEi_SHIFT(i)) 120 #define ASRIER_ADIEi_SHIFT(i) (0 + i) 121 #define ASRIER_ADIEi_MASK(i) (1 << ASRIER_ADIEi_SHIFT(i)) 122 #define ASRIER_ADIE(i) (1 << ASRIER_ADIEi_SHIFT(i)) 123 124 /* REG2 0x0C REG_ASRCNCR */ 125 #define ASRCNCR_ANCi_SHIFT(i, b) (b * i) 126 #define ASRCNCR_ANCi_MASK(i, b) (((1 << b) - 1) << ASRCNCR_ANCi_SHIFT(i, b)) 127 #define ASRCNCR_ANCi(i, v, b) ((v << ASRCNCR_ANCi_SHIFT(i, b)) & ASRCNCR_ANCi_MASK(i, b)) 128 129 /* REG3 0x10 REG_ASRCFG */ 130 #define ASRCFG_INIRQi_SHIFT(i) (21 + i) 131 #define ASRCFG_INIRQi_MASK(i) (1 << ASRCFG_INIRQi_SHIFT(i)) 132 #define ASRCFG_INIRQi (1 << ASRCFG_INIRQi_SHIFT(i)) 133 #define ASRCFG_NDPRi_SHIFT(i) (18 + i) 134 #define ASRCFG_NDPRi_MASK(i) (1 << ASRCFG_NDPRi_SHIFT(i)) 135 #define ASRCFG_NDPRi (1 << ASRCFG_NDPRi_SHIFT(i)) 136 #define ASRCFG_POSTMODi_SHIFT(i) (8 + (i << 2)) 137 #define ASRCFG_POSTMODi_WIDTH 2 138 #define ASRCFG_POSTMODi_MASK(i) (((1 << ASRCFG_POSTMODi_WIDTH) - 1) << ASRCFG_POSTMODi_SHIFT(i)) 139 #define ASRCFG_POSTMOD(i, v) ((v) << ASRCFG_POSTMODi_SHIFT(i)) 140 #define ASRCFG_POSTMODi_UP(i) (0 << ASRCFG_POSTMODi_SHIFT(i)) 141 #define ASRCFG_POSTMODi_DCON(i) (1 << ASRCFG_POSTMODi_SHIFT(i)) 142 #define ASRCFG_POSTMODi_DOWN(i) (2 << ASRCFG_POSTMODi_SHIFT(i)) 143 #define ASRCFG_PREMODi_SHIFT(i) (6 + (i << 2)) 144 #define ASRCFG_PREMODi_WIDTH 2 145 #define ASRCFG_PREMODi_MASK(i) (((1 << ASRCFG_PREMODi_WIDTH) - 1) << ASRCFG_PREMODi_SHIFT(i)) 146 #define ASRCFG_PREMOD(i, v) ((v) << ASRCFG_PREMODi_SHIFT(i)) 147 #define ASRCFG_PREMODi_UP(i) (0 << ASRCFG_PREMODi_SHIFT(i)) 148 #define ASRCFG_PREMODi_DCON(i) (1 << ASRCFG_PREMODi_SHIFT(i)) 149 #define ASRCFG_PREMODi_DOWN(i) (2 << ASRCFG_PREMODi_SHIFT(i)) 150 #define ASRCFG_PREMODi_BYPASS(i) (3 << ASRCFG_PREMODi_SHIFT(i)) 151 152 /* REG4 0x14 REG_ASRCSR */ 153 #define ASRCSR_AxCSi_WIDTH 4 154 #define ASRCSR_AxCSi_MASK ((1 << ASRCSR_AxCSi_WIDTH) - 1) 155 #define ASRCSR_AOCSi_SHIFT(i) (12 + (i << 2)) 156 #define ASRCSR_AOCSi_MASK(i) (((1 << ASRCSR_AxCSi_WIDTH) - 1) << ASRCSR_AOCSi_SHIFT(i)) 157 #define ASRCSR_AOCS(i, v) ((v) << ASRCSR_AOCSi_SHIFT(i)) 158 #define ASRCSR_AICSi_SHIFT(i) (i << 2) 159 #define ASRCSR_AICSi_MASK(i) (((1 << ASRCSR_AxCSi_WIDTH) - 1) << ASRCSR_AICSi_SHIFT(i)) 160 #define ASRCSR_AICS(i, v) ((v) << ASRCSR_AICSi_SHIFT(i)) 161 162 /* REG5&6 0x18 & 0x1C REG_ASRCDR1 & ASRCDR2 */ 163 #define ASRCDRi_AxCPi_WIDTH 3 164 #define ASRCDRi_AICPi_SHIFT(i) (0 + (i % 2) * 6) 165 #define ASRCDRi_AICPi_MASK(i) (((1 << ASRCDRi_AxCPi_WIDTH) - 1) << ASRCDRi_AICPi_SHIFT(i)) 166 #define ASRCDRi_AICP(i, v) ((v) << ASRCDRi_AICPi_SHIFT(i)) 167 #define ASRCDRi_AICDi_SHIFT(i) (3 + (i % 2) * 6) 168 #define ASRCDRi_AICDi_MASK(i) (((1 << ASRCDRi_AxCPi_WIDTH) - 1) << ASRCDRi_AICDi_SHIFT(i)) 169 #define ASRCDRi_AICD(i, v) ((v) << ASRCDRi_AICDi_SHIFT(i)) 170 #define ASRCDRi_AOCPi_SHIFT(i) ((i < 2) ? 12 + i * 6 : 6) 171 #define ASRCDRi_AOCPi_MASK(i) (((1 << ASRCDRi_AxCPi_WIDTH) - 1) << ASRCDRi_AOCPi_SHIFT(i)) 172 #define ASRCDRi_AOCP(i, v) ((v) << ASRCDRi_AOCPi_SHIFT(i)) 173 #define ASRCDRi_AOCDi_SHIFT(i) ((i < 2) ? 15 + i * 6 : 9) 174 #define ASRCDRi_AOCDi_MASK(i) (((1 << ASRCDRi_AxCPi_WIDTH) - 1) << ASRCDRi_AOCDi_SHIFT(i)) 175 #define ASRCDRi_AOCD(i, v) ((v) << ASRCDRi_AOCDi_SHIFT(i)) 176 177 /* REG7 0x20 REG_ASRSTR */ 178 #define ASRSTR_DSLCNT_SHIFT 21 179 #define ASRSTR_DSLCNT_MASK (1 << ASRSTR_DSLCNT_SHIFT) 180 #define ASRSTR_DSLCNT (1 << ASRSTR_DSLCNT_SHIFT) 181 #define ASRSTR_ATQOL_SHIFT 20 182 #define ASRSTR_ATQOL_MASK (1 << ASRSTR_ATQOL_SHIFT) 183 #define ASRSTR_ATQOL (1 << ASRSTR_ATQOL_SHIFT) 184 #define ASRSTR_AOOLi_SHIFT(i) (17 + i) 185 #define ASRSTR_AOOLi_MASK(i) (1 << ASRSTR_AOOLi_SHIFT(i)) 186 #define ASRSTR_AOOL(i) (1 << ASRSTR_AOOLi_SHIFT(i)) 187 #define ASRSTR_AIOLi_SHIFT(i) (14 + i) 188 #define ASRSTR_AIOLi_MASK(i) (1 << ASRSTR_AIOLi_SHIFT(i)) 189 #define ASRSTR_AIOL(i) (1 << ASRSTR_AIOLi_SHIFT(i)) 190 #define ASRSTR_AODOi_SHIFT(i) (11 + i) 191 #define ASRSTR_AODOi_MASK(i) (1 << ASRSTR_AODOi_SHIFT(i)) 192 #define ASRSTR_AODO(i) (1 << ASRSTR_AODOi_SHIFT(i)) 193 #define ASRSTR_AIDUi_SHIFT(i) (8 + i) 194 #define ASRSTR_AIDUi_MASK(i) (1 << ASRSTR_AIDUi_SHIFT(i)) 195 #define ASRSTR_AIDU(i) (1 << ASRSTR_AIDUi_SHIFT(i)) 196 #define ASRSTR_FPWT_SHIFT 7 197 #define ASRSTR_FPWT_MASK (1 << ASRSTR_FPWT_SHIFT) 198 #define ASRSTR_FPWT (1 << ASRSTR_FPWT_SHIFT) 199 #define ASRSTR_AOLE_SHIFT 6 200 #define ASRSTR_AOLE_MASK (1 << ASRSTR_AOLE_SHIFT) 201 #define ASRSTR_AOLE (1 << ASRSTR_AOLE_SHIFT) 202 #define ASRSTR_AODEi_SHIFT(i) (3 + i) 203 #define ASRSTR_AODFi_MASK(i) (1 << ASRSTR_AODEi_SHIFT(i)) 204 #define ASRSTR_AODF(i) (1 << ASRSTR_AODEi_SHIFT(i)) 205 #define ASRSTR_AIDEi_SHIFT(i) (0 + i) 206 #define ASRSTR_AIDEi_MASK(i) (1 << ASRSTR_AIDEi_SHIFT(i)) 207 #define ASRSTR_AIDE(i) (1 << ASRSTR_AIDEi_SHIFT(i)) 208 209 /* REG10 0x54 REG_ASRTFR1 */ 210 #define ASRTFR1_TF_BASE_WIDTH 7 211 #define ASRTFR1_TF_BASE_SHIFT 6 212 #define ASRTFR1_TF_BASE_MASK (((1 << ASRTFR1_TF_BASE_WIDTH) - 1) << ASRTFR1_TF_BASE_SHIFT) 213 #define ASRTFR1_TF_BASE(i) ((i) << ASRTFR1_TF_BASE_SHIFT) 214 215 /* 216 * REG22 0xA0 REG_ASRMCRA 217 * REG24 0xA8 REG_ASRMCRB 218 * REG26 0xB0 REG_ASRMCRC 219 */ 220 #define ASRMCRi_ZEROBUFi_SHIFT 23 221 #define ASRMCRi_ZEROBUFi_MASK (1 << ASRMCRi_ZEROBUFi_SHIFT) 222 #define ASRMCRi_ZEROBUFi (1 << ASRMCRi_ZEROBUFi_SHIFT) 223 #define ASRMCRi_EXTTHRSHi_SHIFT 22 224 #define ASRMCRi_EXTTHRSHi_MASK (1 << ASRMCRi_EXTTHRSHi_SHIFT) 225 #define ASRMCRi_EXTTHRSHi (1 << ASRMCRi_EXTTHRSHi_SHIFT) 226 #define ASRMCRi_BUFSTALLi_SHIFT 21 227 #define ASRMCRi_BUFSTALLi_MASK (1 << ASRMCRi_BUFSTALLi_SHIFT) 228 #define ASRMCRi_BUFSTALLi (1 << ASRMCRi_BUFSTALLi_SHIFT) 229 #define ASRMCRi_BYPASSPOLYi_SHIFT 20 230 #define ASRMCRi_BYPASSPOLYi_MASK (1 << ASRMCRi_BYPASSPOLYi_SHIFT) 231 #define ASRMCRi_BYPASSPOLYi (1 << ASRMCRi_BYPASSPOLYi_SHIFT) 232 #define ASRMCRi_OUTFIFO_THRESHOLD_WIDTH 6 233 #define ASRMCRi_OUTFIFO_THRESHOLD_SHIFT 12 234 #define ASRMCRi_OUTFIFO_THRESHOLD_MASK (((1 << ASRMCRi_OUTFIFO_THRESHOLD_WIDTH) - 1) << ASRMCRi_OUTFIFO_THRESHOLD_SHIFT) 235 #define ASRMCRi_OUTFIFO_THRESHOLD(v) (((v) << ASRMCRi_OUTFIFO_THRESHOLD_SHIFT) & ASRMCRi_OUTFIFO_THRESHOLD_MASK) 236 #define ASRMCRi_RSYNIFi_SHIFT 11 237 #define ASRMCRi_RSYNIFi_MASK (1 << ASRMCRi_RSYNIFi_SHIFT) 238 #define ASRMCRi_RSYNIFi (1 << ASRMCRi_RSYNIFi_SHIFT) 239 #define ASRMCRi_RSYNOFi_SHIFT 10 240 #define ASRMCRi_RSYNOFi_MASK (1 << ASRMCRi_RSYNOFi_SHIFT) 241 #define ASRMCRi_RSYNOFi (1 << ASRMCRi_RSYNOFi_SHIFT) 242 #define ASRMCRi_INFIFO_THRESHOLD_WIDTH 6 243 #define ASRMCRi_INFIFO_THRESHOLD_SHIFT 0 244 #define ASRMCRi_INFIFO_THRESHOLD_MASK (((1 << ASRMCRi_INFIFO_THRESHOLD_WIDTH) - 1) << ASRMCRi_INFIFO_THRESHOLD_SHIFT) 245 #define ASRMCRi_INFIFO_THRESHOLD(v) (((v) << ASRMCRi_INFIFO_THRESHOLD_SHIFT) & ASRMCRi_INFIFO_THRESHOLD_MASK) 246 247 /* 248 * REG23 0xA4 REG_ASRFSTA 249 * REG25 0xAC REG_ASRFSTB 250 * REG27 0xB4 REG_ASRFSTC 251 */ 252 #define ASRFSTi_OAFi_SHIFT 23 253 #define ASRFSTi_OAFi_MASK (1 << ASRFSTi_OAFi_SHIFT) 254 #define ASRFSTi_OAFi (1 << ASRFSTi_OAFi_SHIFT) 255 #define ASRFSTi_OUTPUT_FIFO_WIDTH 7 256 #define ASRFSTi_OUTPUT_FIFO_SHIFT 12 257 #define ASRFSTi_OUTPUT_FIFO_MASK (((1 << ASRFSTi_OUTPUT_FIFO_WIDTH) - 1) << ASRFSTi_OUTPUT_FIFO_SHIFT) 258 #define ASRFSTi_IAEi_SHIFT 11 259 #define ASRFSTi_IAEi_MASK (1 << ASRFSTi_OAFi_SHIFT) 260 #define ASRFSTi_IAEi (1 << ASRFSTi_OAFi_SHIFT) 261 #define ASRFSTi_INPUT_FIFO_WIDTH 7 262 #define ASRFSTi_INPUT_FIFO_SHIFT 0 263 #define ASRFSTi_INPUT_FIFO_MASK ((1 << ASRFSTi_INPUT_FIFO_WIDTH) - 1) 264 265 /* REG28 0xC0 & 0xC4 & 0xC8 REG_ASRMCR1i */ 266 #define ASRMCR1i_IWD_WIDTH 3 267 #define ASRMCR1i_IWD_SHIFT 9 268 #define ASRMCR1i_IWD_MASK (((1 << ASRMCR1i_IWD_WIDTH) - 1) << ASRMCR1i_IWD_SHIFT) 269 #define ASRMCR1i_IWD(v) ((v) << ASRMCR1i_IWD_SHIFT) 270 #define ASRMCR1i_IMSB_SHIFT 8 271 #define ASRMCR1i_IMSB_MASK (1 << ASRMCR1i_IMSB_SHIFT) 272 #define ASRMCR1i_IMSB_MSB (1 << ASRMCR1i_IMSB_SHIFT) 273 #define ASRMCR1i_IMSB_LSB (0 << ASRMCR1i_IMSB_SHIFT) 274 #define ASRMCR1i_OMSB_SHIFT 2 275 #define ASRMCR1i_OMSB_MASK (1 << ASRMCR1i_OMSB_SHIFT) 276 #define ASRMCR1i_OMSB_MSB (1 << ASRMCR1i_OMSB_SHIFT) 277 #define ASRMCR1i_OMSB_LSB (0 << ASRMCR1i_OMSB_SHIFT) 278 #define ASRMCR1i_OSGN_SHIFT 1 279 #define ASRMCR1i_OSGN_MASK (1 << ASRMCR1i_OSGN_SHIFT) 280 #define ASRMCR1i_OSGN (1 << ASRMCR1i_OSGN_SHIFT) 281 #define ASRMCR1i_OW16_SHIFT 0 282 #define ASRMCR1i_OW16_MASK (1 << ASRMCR1i_OW16_SHIFT) 283 #define ASRMCR1i_OW16(v) ((v) << ASRMCR1i_OW16_SHIFT) 284 285 286 enum asrc_pair_index { 287 ASRC_INVALID_PAIR = -1, 288 ASRC_PAIR_A = 0, 289 ASRC_PAIR_B = 1, 290 ASRC_PAIR_C = 2, 291 }; 292 293 #define ASRC_PAIR_MAX_NUM (ASRC_PAIR_C + 1) 294 295 enum asrc_inclk { 296 INCLK_NONE = 0x03, 297 INCLK_ESAI_RX = 0x00, 298 INCLK_SSI1_RX = 0x01, 299 INCLK_SSI2_RX = 0x02, 300 INCLK_SSI3_RX = 0x07, 301 INCLK_SPDIF_RX = 0x04, 302 INCLK_MLB_CLK = 0x05, 303 INCLK_PAD = 0x06, 304 INCLK_ESAI_TX = 0x08, 305 INCLK_SSI1_TX = 0x09, 306 INCLK_SSI2_TX = 0x0a, 307 INCLK_SSI3_TX = 0x0b, 308 INCLK_SPDIF_TX = 0x0c, 309 INCLK_ASRCK1_CLK = 0x0f, 310 }; 311 312 enum asrc_outclk { 313 OUTCLK_NONE = 0x03, 314 OUTCLK_ESAI_TX = 0x00, 315 OUTCLK_SSI1_TX = 0x01, 316 OUTCLK_SSI2_TX = 0x02, 317 OUTCLK_SSI3_TX = 0x07, 318 OUTCLK_SPDIF_TX = 0x04, 319 OUTCLK_MLB_CLK = 0x05, 320 OUTCLK_PAD = 0x06, 321 OUTCLK_ESAI_RX = 0x08, 322 OUTCLK_SSI1_RX = 0x09, 323 OUTCLK_SSI2_RX = 0x0a, 324 OUTCLK_SSI3_RX = 0x0b, 325 OUTCLK_SPDIF_RX = 0x0c, 326 OUTCLK_ASRCK1_CLK = 0x0f, 327 }; 328 329 #define ASRC_CLK_MAX_NUM 16 330 331 enum asrc_word_width { 332 ASRC_WIDTH_24_BIT = 0, 333 ASRC_WIDTH_16_BIT = 1, 334 ASRC_WIDTH_8_BIT = 2, 335 }; 336 337 struct asrc_config { 338 enum asrc_pair_index pair; 339 unsigned int channel_num; 340 unsigned int buffer_num; 341 unsigned int dma_buffer_size; 342 unsigned int input_sample_rate; 343 unsigned int output_sample_rate; 344 enum asrc_word_width input_word_width; 345 enum asrc_word_width output_word_width; 346 enum asrc_inclk inclk; 347 enum asrc_outclk outclk; 348 }; 349 350 struct asrc_req { 351 unsigned int chn_num; 352 enum asrc_pair_index index; 353 }; 354 355 struct asrc_querybuf { 356 unsigned int buffer_index; 357 unsigned int input_length; 358 unsigned int output_length; 359 unsigned long input_offset; 360 unsigned long output_offset; 361 }; 362 363 struct asrc_convert_buffer { 364 void *input_buffer_vaddr; 365 void *output_buffer_vaddr; 366 unsigned int input_buffer_length; 367 unsigned int output_buffer_length; 368 }; 369 370 struct asrc_status_flags { 371 enum asrc_pair_index index; 372 unsigned int overload_error; 373 }; 374 375 enum asrc_error_status { 376 ASRC_TASK_Q_OVERLOAD = 0x01, 377 ASRC_OUTPUT_TASK_OVERLOAD = 0x02, 378 ASRC_INPUT_TASK_OVERLOAD = 0x04, 379 ASRC_OUTPUT_BUFFER_OVERFLOW = 0x08, 380 ASRC_INPUT_BUFFER_UNDERRUN = 0x10, 381 }; 382 383 struct dma_block { 384 dma_addr_t dma_paddr; 385 void *dma_vaddr; 386 unsigned int length; 387 }; 388 389 /** 390 * fsl_asrc_pair: ASRC Pair private data 391 * 392 * @asrc_priv: pointer to its parent module 393 * @config: configuration profile 394 * @error: error record 395 * @index: pair index (ASRC_PAIR_A, ASRC_PAIR_B, ASRC_PAIR_C) 396 * @channels: occupied channel number 397 * @desc: input and output dma descriptors 398 * @dma_chan: inputer and output DMA channels 399 * @dma_data: private dma data 400 * @pos: hardware pointer position 401 * @private: pair private area 402 */ 403 struct fsl_asrc_pair { 404 struct fsl_asrc *asrc_priv; 405 struct asrc_config *config; 406 unsigned int error; 407 408 enum asrc_pair_index index; 409 unsigned int channels; 410 411 struct dma_async_tx_descriptor *desc[2]; 412 struct dma_chan *dma_chan[2]; 413 struct imx_dma_data dma_data; 414 unsigned int pos; 415 416 void *private; 417 }; 418 419 /** 420 * fsl_asrc_pair: ASRC private data 421 * 422 * @dma_params_rx: DMA parameters for receive channel 423 * @dma_params_tx: DMA parameters for transmit channel 424 * @pdev: platform device pointer 425 * @regmap: regmap handler 426 * @paddr: physical address to the base address of registers 427 * @mem_clk: clock source to access register 428 * @ipg_clk: clock source to drive peripheral 429 * @asrck_clk: clock sources to driver ASRC internal logic 430 * @lock: spin lock for resource protection 431 * @pair: pair pointers 432 * @channel_bits: width of ASRCNCR register for each pair 433 * @channel_avail: non-occupied channel numbers 434 * @asrc_rate: default sample rate for ASoC Back-Ends 435 * @asrc_width: default sample width for ASoC Back-Ends 436 * @name: driver name 437 */ 438 struct fsl_asrc { 439 struct snd_dmaengine_dai_dma_data dma_params_rx; 440 struct snd_dmaengine_dai_dma_data dma_params_tx; 441 struct platform_device *pdev; 442 struct regmap *regmap; 443 unsigned long paddr; 444 struct clk *mem_clk; 445 struct clk *ipg_clk; 446 struct clk *asrck_clk[ASRC_CLK_MAX_NUM]; 447 spinlock_t lock; 448 449 struct fsl_asrc_pair *pair[ASRC_PAIR_MAX_NUM]; 450 unsigned int channel_bits; 451 unsigned int channel_avail; 452 453 int asrc_rate; 454 int asrc_width; 455 456 char name[32]; 457 }; 458 459 extern struct snd_soc_platform_driver fsl_asrc_platform; 460 struct dma_chan *fsl_asrc_get_dma_channel(struct fsl_asrc_pair *pair, bool dir); 461 #endif /* _FSL_ASRC_H */ 462