| /* |
| * fsl_asrc.h - Freescale ASRC ALSA SoC header file |
| * |
| * Copyright (C) 2014-2015 Freescale Semiconductor, Inc. |
| * |
| * Author: Nicolin Chen <nicoleotsuka@gmail.com> |
| * |
| * This file is licensed under the terms of the GNU General Public License |
| * version 2. This program is licensed "as is" without any warranty of any |
| * kind, whether express or implied. |
| */ |
| |
| #ifndef _FSL_ASRC_H |
| #define _FSL_ASRC_H |
| |
| #include <uapi/linux/mxc_asrc.h> |
| |
| #define IN 0 |
| #define OUT 1 |
| |
| #define ASRC_DMA_BUFFER_NUM 2 |
| #define ASRC_INPUTFIFO_THRESHOLD 32 |
| #define ASRC_OUTPUTFIFO_THRESHOLD 32 |
| #define ASRC_FIFO_THRESHOLD_MIN 0 |
| #define ASRC_FIFO_THRESHOLD_MAX 63 |
| #define ASRC_DMA_BUFFER_SIZE (1024 * 48 * 4) |
| #define ASRC_MAX_BUFFER_SIZE (1024 * 48) |
| #define ASRC_OUTPUT_LAST_SAMPLE_MAX 32 |
| #define ASRC_OUTPUT_LAST_SAMPLE 16 |
| |
| #define IDEAL_RATIO_RATE 200000 |
| |
| #define REG_ASRCTR 0x00 |
| #define REG_ASRIER 0x04 |
| #define REG_ASRCNCR 0x0C |
| #define REG_ASRCFG 0x10 |
| #define REG_ASRCSR 0x14 |
| |
| #define REG_ASRCDR1 0x18 |
| #define REG_ASRCDR2 0x1C |
| #define REG_ASRCDR(i) ((i < 2) ? REG_ASRCDR1 : REG_ASRCDR2) |
| |
| #define REG_ASRSTR 0x20 |
| #define REG_ASRRA 0x24 |
| #define REG_ASRRB 0x28 |
| #define REG_ASRRC 0x2C |
| #define REG_ASRPM1 0x40 |
| #define REG_ASRPM2 0x44 |
| #define REG_ASRPM3 0x48 |
| #define REG_ASRPM4 0x4C |
| #define REG_ASRPM5 0x50 |
| #define REG_ASRTFR1 0x54 |
| #define REG_ASRCCR 0x5C |
| |
| #define REG_ASRDIA 0x60 |
| #define REG_ASRDOA 0x64 |
| #define REG_ASRDIB 0x68 |
| #define REG_ASRDOB 0x6C |
| #define REG_ASRDIC 0x70 |
| #define REG_ASRDOC 0x74 |
| #define REG_ASRDI(i) (REG_ASRDIA + (i << 3)) |
| #define REG_ASRDO(i) (REG_ASRDOA + (i << 3)) |
| #define REG_ASRDx(x, i) (x == IN ? REG_ASRDI(i) : REG_ASRDO(i)) |
| |
| #define REG_ASRIDRHA 0x80 |
| #define REG_ASRIDRLA 0x84 |
| #define REG_ASRIDRHB 0x88 |
| #define REG_ASRIDRLB 0x8C |
| #define REG_ASRIDRHC 0x90 |
| #define REG_ASRIDRLC 0x94 |
| #define REG_ASRIDRH(i) (REG_ASRIDRHA + (i << 3)) |
| #define REG_ASRIDRL(i) (REG_ASRIDRLA + (i << 3)) |
| |
| #define REG_ASR76K 0x98 |
| #define REG_ASR56K 0x9C |
| |
| #define REG_ASRMCRA 0xA0 |
| #define REG_ASRFSTA 0xA4 |
| #define REG_ASRMCRB 0xA8 |
| #define REG_ASRFSTB 0xAC |
| #define REG_ASRMCRC 0xB0 |
| #define REG_ASRFSTC 0xB4 |
| #define REG_ASRMCR(i) (REG_ASRMCRA + (i << 3)) |
| #define REG_ASRFST(i) (REG_ASRFSTA + (i << 3)) |
| |
| #define REG_ASRMCR1A 0xC0 |
| #define REG_ASRMCR1B 0xC4 |
| #define REG_ASRMCR1C 0xC8 |
| #define REG_ASRMCR1(i) (REG_ASRMCR1A + (i << 2)) |
| |
| |
| /* REG0 0x00 REG_ASRCTR */ |
| #define ASRCTR_ATSi_SHIFT(i) (20 + i) |
| #define ASRCTR_ATSi_MASK(i) (1 << ASRCTR_ATSi_SHIFT(i)) |
| #define ASRCTR_ATS(i) (1 << ASRCTR_ATSi_SHIFT(i)) |
| #define ASRCTR_USRi_SHIFT(i) (14 + (i << 1)) |
| #define ASRCTR_USRi_MASK(i) (1 << ASRCTR_USRi_SHIFT(i)) |
| #define ASRCTR_USR(i) (1 << ASRCTR_USRi_SHIFT(i)) |
| #define ASRCTR_IDRi_SHIFT(i) (13 + (i << 1)) |
| #define ASRCTR_IDRi_MASK(i) (1 << ASRCTR_IDRi_SHIFT(i)) |
| #define ASRCTR_IDR(i) (1 << ASRCTR_IDRi_SHIFT(i)) |
| #define ASRCTR_SRST_SHIFT 4 |
| #define ASRCTR_SRST_MASK (1 << ASRCTR_SRST_SHIFT) |
| #define ASRCTR_SRST (1 << ASRCTR_SRST_SHIFT) |
| #define ASRCTR_ASRCEi_SHIFT(i) (1 + i) |
| #define ASRCTR_ASRCEi_MASK(i) (1 << ASRCTR_ASRCEi_SHIFT(i)) |
| #define ASRCTR_ASRCE(i) (1 << ASRCTR_ASRCEi_SHIFT(i)) |
| #define ASRCTR_ASRCEi_ALL_MASK (0x7 << ASRCTR_ASRCEi_SHIFT(0)) |
| #define ASRCTR_ASRCEN_SHIFT 0 |
| #define ASRCTR_ASRCEN_MASK (1 << ASRCTR_ASRCEN_SHIFT) |
| #define ASRCTR_ASRCEN (1 << ASRCTR_ASRCEN_SHIFT) |
| |
| /* REG1 0x04 REG_ASRIER */ |
| #define ASRIER_AFPWE_SHIFT 7 |
| #define ASRIER_AFPWE_MASK (1 << ASRIER_AFPWE_SHIFT) |
| #define ASRIER_AFPWE (1 << ASRIER_AFPWE_SHIFT) |
| #define ASRIER_AOLIE_SHIFT 6 |
| #define ASRIER_AOLIE_MASK (1 << ASRIER_AOLIE_SHIFT) |
| #define ASRIER_AOLIE (1 << ASRIER_AOLIE_SHIFT) |
| #define ASRIER_ADOEi_SHIFT(i) (3 + i) |
| #define ASRIER_ADOEi_MASK(i) (1 << ASRIER_ADOEi_SHIFT(i)) |
| #define ASRIER_ADOE(i) (1 << ASRIER_ADOEi_SHIFT(i)) |
| #define ASRIER_ADIEi_SHIFT(i) (0 + i) |
| #define ASRIER_ADIEi_MASK(i) (1 << ASRIER_ADIEi_SHIFT(i)) |
| #define ASRIER_ADIE(i) (1 << ASRIER_ADIEi_SHIFT(i)) |
| |
| /* REG2 0x0C REG_ASRCNCR */ |
| #define ASRCNCR_ANCi_SHIFT(i, b) (b * i) |
| #define ASRCNCR_ANCi_MASK(i, b) (((1 << b) - 1) << ASRCNCR_ANCi_SHIFT(i, b)) |
| #define ASRCNCR_ANCi(i, v, b) ((v << ASRCNCR_ANCi_SHIFT(i, b)) & ASRCNCR_ANCi_MASK(i, b)) |
| |
| /* REG3 0x10 REG_ASRCFG */ |
| #define ASRCFG_INIRQi_SHIFT(i) (21 + i) |
| #define ASRCFG_INIRQi_MASK(i) (1 << ASRCFG_INIRQi_SHIFT(i)) |
| #define ASRCFG_INIRQi (1 << ASRCFG_INIRQi_SHIFT(i)) |
| #define ASRCFG_NDPRi_SHIFT(i) (18 + i) |
| #define ASRCFG_NDPRi_MASK(i) (1 << ASRCFG_NDPRi_SHIFT(i)) |
| #define ASRCFG_NDPRi (1 << ASRCFG_NDPRi_SHIFT(i)) |
| #define ASRCFG_POSTMODi_SHIFT(i) (8 + (i << 2)) |
| #define ASRCFG_POSTMODi_WIDTH 2 |
| #define ASRCFG_POSTMODi_MASK(i) (((1 << ASRCFG_POSTMODi_WIDTH) - 1) << ASRCFG_POSTMODi_SHIFT(i)) |
| #define ASRCFG_POSTMOD(i, v) ((v) << ASRCFG_POSTMODi_SHIFT(i)) |
| #define ASRCFG_POSTMODi_UP(i) (0 << ASRCFG_POSTMODi_SHIFT(i)) |
| #define ASRCFG_POSTMODi_DCON(i) (1 << ASRCFG_POSTMODi_SHIFT(i)) |
| #define ASRCFG_POSTMODi_DOWN(i) (2 << ASRCFG_POSTMODi_SHIFT(i)) |
| #define ASRCFG_PREMODi_SHIFT(i) (6 + (i << 2)) |
| #define ASRCFG_PREMODi_WIDTH 2 |
| #define ASRCFG_PREMODi_MASK(i) (((1 << ASRCFG_PREMODi_WIDTH) - 1) << ASRCFG_PREMODi_SHIFT(i)) |
| #define ASRCFG_PREMOD(i, v) ((v) << ASRCFG_PREMODi_SHIFT(i)) |
| #define ASRCFG_PREMODi_UP(i) (0 << ASRCFG_PREMODi_SHIFT(i)) |
| #define ASRCFG_PREMODi_DCON(i) (1 << ASRCFG_PREMODi_SHIFT(i)) |
| #define ASRCFG_PREMODi_DOWN(i) (2 << ASRCFG_PREMODi_SHIFT(i)) |
| #define ASRCFG_PREMODi_BYPASS(i) (3 << ASRCFG_PREMODi_SHIFT(i)) |
| |
| /* REG4 0x14 REG_ASRCSR */ |
| #define ASRCSR_AxCSi_WIDTH 4 |
| #define ASRCSR_AxCSi_MASK ((1 << ASRCSR_AxCSi_WIDTH) - 1) |
| #define ASRCSR_AOCSi_SHIFT(i) (12 + (i << 2)) |
| #define ASRCSR_AOCSi_MASK(i) (((1 << ASRCSR_AxCSi_WIDTH) - 1) << ASRCSR_AOCSi_SHIFT(i)) |
| #define ASRCSR_AOCS(i, v) ((v) << ASRCSR_AOCSi_SHIFT(i)) |
| #define ASRCSR_AICSi_SHIFT(i) (i << 2) |
| #define ASRCSR_AICSi_MASK(i) (((1 << ASRCSR_AxCSi_WIDTH) - 1) << ASRCSR_AICSi_SHIFT(i)) |
| #define ASRCSR_AICS(i, v) ((v) << ASRCSR_AICSi_SHIFT(i)) |
| |
| /* REG5&6 0x18 & 0x1C REG_ASRCDR1 & ASRCDR2 */ |
| #define ASRCDRi_AxCPi_WIDTH 3 |
| #define ASRCDRi_AICPi_SHIFT(i) (0 + (i % 2) * 6) |
| #define ASRCDRi_AICPi_MASK(i) (((1 << ASRCDRi_AxCPi_WIDTH) - 1) << ASRCDRi_AICPi_SHIFT(i)) |
| #define ASRCDRi_AICP(i, v) ((v) << ASRCDRi_AICPi_SHIFT(i)) |
| #define ASRCDRi_AICDi_SHIFT(i) (3 + (i % 2) * 6) |
| #define ASRCDRi_AICDi_MASK(i) (((1 << ASRCDRi_AxCPi_WIDTH) - 1) << ASRCDRi_AICDi_SHIFT(i)) |
| #define ASRCDRi_AICD(i, v) ((v) << ASRCDRi_AICDi_SHIFT(i)) |
| #define ASRCDRi_AOCPi_SHIFT(i) ((i < 2) ? 12 + i * 6 : 6) |
| #define ASRCDRi_AOCPi_MASK(i) (((1 << ASRCDRi_AxCPi_WIDTH) - 1) << ASRCDRi_AOCPi_SHIFT(i)) |
| #define ASRCDRi_AOCP(i, v) ((v) << ASRCDRi_AOCPi_SHIFT(i)) |
| #define ASRCDRi_AOCDi_SHIFT(i) ((i < 2) ? 15 + i * 6 : 9) |
| #define ASRCDRi_AOCDi_MASK(i) (((1 << ASRCDRi_AxCPi_WIDTH) - 1) << ASRCDRi_AOCDi_SHIFT(i)) |
| #define ASRCDRi_AOCD(i, v) ((v) << ASRCDRi_AOCDi_SHIFT(i)) |
| |
| /* REG7 0x20 REG_ASRSTR */ |
| #define ASRSTR_DSLCNT_SHIFT 21 |
| #define ASRSTR_DSLCNT_MASK (1 << ASRSTR_DSLCNT_SHIFT) |
| #define ASRSTR_DSLCNT (1 << ASRSTR_DSLCNT_SHIFT) |
| #define ASRSTR_ATQOL_SHIFT 20 |
| #define ASRSTR_ATQOL_MASK (1 << ASRSTR_ATQOL_SHIFT) |
| #define ASRSTR_ATQOL (1 << ASRSTR_ATQOL_SHIFT) |
| #define ASRSTR_AOOLi_SHIFT(i) (17 + i) |
| #define ASRSTR_AOOLi_MASK(i) (1 << ASRSTR_AOOLi_SHIFT(i)) |
| #define ASRSTR_AOOL(i) (1 << ASRSTR_AOOLi_SHIFT(i)) |
| #define ASRSTR_AIOLi_SHIFT(i) (14 + i) |
| #define ASRSTR_AIOLi_MASK(i) (1 << ASRSTR_AIOLi_SHIFT(i)) |
| #define ASRSTR_AIOL(i) (1 << ASRSTR_AIOLi_SHIFT(i)) |
| #define ASRSTR_AODOi_SHIFT(i) (11 + i) |
| #define ASRSTR_AODOi_MASK(i) (1 << ASRSTR_AODOi_SHIFT(i)) |
| #define ASRSTR_AODO(i) (1 << ASRSTR_AODOi_SHIFT(i)) |
| #define ASRSTR_AIDUi_SHIFT(i) (8 + i) |
| #define ASRSTR_AIDUi_MASK(i) (1 << ASRSTR_AIDUi_SHIFT(i)) |
| #define ASRSTR_AIDU(i) (1 << ASRSTR_AIDUi_SHIFT(i)) |
| #define ASRSTR_FPWT_SHIFT 7 |
| #define ASRSTR_FPWT_MASK (1 << ASRSTR_FPWT_SHIFT) |
| #define ASRSTR_FPWT (1 << ASRSTR_FPWT_SHIFT) |
| #define ASRSTR_AOLE_SHIFT 6 |
| #define ASRSTR_AOLE_MASK (1 << ASRSTR_AOLE_SHIFT) |
| #define ASRSTR_AOLE (1 << ASRSTR_AOLE_SHIFT) |
| #define ASRSTR_AODEi_SHIFT(i) (3 + i) |
| #define ASRSTR_AODFi_MASK(i) (1 << ASRSTR_AODEi_SHIFT(i)) |
| #define ASRSTR_AODF(i) (1 << ASRSTR_AODEi_SHIFT(i)) |
| #define ASRSTR_AIDEi_SHIFT(i) (0 + i) |
| #define ASRSTR_AIDEi_MASK(i) (1 << ASRSTR_AIDEi_SHIFT(i)) |
| #define ASRSTR_AIDE(i) (1 << ASRSTR_AIDEi_SHIFT(i)) |
| |
| /* REG10 0x54 REG_ASRTFR1 */ |
| #define ASRTFR1_TF_BASE_WIDTH 7 |
| #define ASRTFR1_TF_BASE_SHIFT 6 |
| #define ASRTFR1_TF_BASE_MASK (((1 << ASRTFR1_TF_BASE_WIDTH) - 1) << ASRTFR1_TF_BASE_SHIFT) |
| #define ASRTFR1_TF_BASE(i) ((i) << ASRTFR1_TF_BASE_SHIFT) |
| |
| /* |
| * REG22 0xA0 REG_ASRMCRA |
| * REG24 0xA8 REG_ASRMCRB |
| * REG26 0xB0 REG_ASRMCRC |
| */ |
| #define ASRMCRi_ZEROBUFi_SHIFT 23 |
| #define ASRMCRi_ZEROBUFi_MASK (1 << ASRMCRi_ZEROBUFi_SHIFT) |
| #define ASRMCRi_ZEROBUFi (1 << ASRMCRi_ZEROBUFi_SHIFT) |
| #define ASRMCRi_EXTTHRSHi_SHIFT 22 |
| #define ASRMCRi_EXTTHRSHi_MASK (1 << ASRMCRi_EXTTHRSHi_SHIFT) |
| #define ASRMCRi_EXTTHRSHi (1 << ASRMCRi_EXTTHRSHi_SHIFT) |
| #define ASRMCRi_BUFSTALLi_SHIFT 21 |
| #define ASRMCRi_BUFSTALLi_MASK (1 << ASRMCRi_BUFSTALLi_SHIFT) |
| #define ASRMCRi_BUFSTALLi (1 << ASRMCRi_BUFSTALLi_SHIFT) |
| #define ASRMCRi_BYPASSPOLYi_SHIFT 20 |
| #define ASRMCRi_BYPASSPOLYi_MASK (1 << ASRMCRi_BYPASSPOLYi_SHIFT) |
| #define ASRMCRi_BYPASSPOLYi (1 << ASRMCRi_BYPASSPOLYi_SHIFT) |
| #define ASRMCRi_OUTFIFO_THRESHOLD_WIDTH 6 |
| #define ASRMCRi_OUTFIFO_THRESHOLD_SHIFT 12 |
| #define ASRMCRi_OUTFIFO_THRESHOLD_MASK (((1 << ASRMCRi_OUTFIFO_THRESHOLD_WIDTH) - 1) << ASRMCRi_OUTFIFO_THRESHOLD_SHIFT) |
| #define ASRMCRi_OUTFIFO_THRESHOLD(v) (((v) << ASRMCRi_OUTFIFO_THRESHOLD_SHIFT) & ASRMCRi_OUTFIFO_THRESHOLD_MASK) |
| #define ASRMCRi_RSYNIFi_SHIFT 11 |
| #define ASRMCRi_RSYNIFi_MASK (1 << ASRMCRi_RSYNIFi_SHIFT) |
| #define ASRMCRi_RSYNIFi (1 << ASRMCRi_RSYNIFi_SHIFT) |
| #define ASRMCRi_RSYNOFi_SHIFT 10 |
| #define ASRMCRi_RSYNOFi_MASK (1 << ASRMCRi_RSYNOFi_SHIFT) |
| #define ASRMCRi_RSYNOFi (1 << ASRMCRi_RSYNOFi_SHIFT) |
| #define ASRMCRi_INFIFO_THRESHOLD_WIDTH 6 |
| #define ASRMCRi_INFIFO_THRESHOLD_SHIFT 0 |
| #define ASRMCRi_INFIFO_THRESHOLD_MASK (((1 << ASRMCRi_INFIFO_THRESHOLD_WIDTH) - 1) << ASRMCRi_INFIFO_THRESHOLD_SHIFT) |
| #define ASRMCRi_INFIFO_THRESHOLD(v) (((v) << ASRMCRi_INFIFO_THRESHOLD_SHIFT) & ASRMCRi_INFIFO_THRESHOLD_MASK) |
| |
| /* |
| * REG23 0xA4 REG_ASRFSTA |
| * REG25 0xAC REG_ASRFSTB |
| * REG27 0xB4 REG_ASRFSTC |
| */ |
| #define ASRFSTi_OAFi_SHIFT 23 |
| #define ASRFSTi_OAFi_MASK (1 << ASRFSTi_OAFi_SHIFT) |
| #define ASRFSTi_OAFi (1 << ASRFSTi_OAFi_SHIFT) |
| #define ASRFSTi_OUTPUT_FIFO_WIDTH 7 |
| #define ASRFSTi_OUTPUT_FIFO_SHIFT 12 |
| #define ASRFSTi_OUTPUT_FIFO_MASK (((1 << ASRFSTi_OUTPUT_FIFO_WIDTH) - 1) << ASRFSTi_OUTPUT_FIFO_SHIFT) |
| #define ASRFSTi_IAEi_SHIFT 11 |
| #define ASRFSTi_IAEi_MASK (1 << ASRFSTi_OAFi_SHIFT) |
| #define ASRFSTi_IAEi (1 << ASRFSTi_OAFi_SHIFT) |
| #define ASRFSTi_INPUT_FIFO_WIDTH 7 |
| #define ASRFSTi_INPUT_FIFO_SHIFT 0 |
| #define ASRFSTi_INPUT_FIFO_MASK ((1 << ASRFSTi_INPUT_FIFO_WIDTH) - 1) |
| |
| /* REG28 0xC0 & 0xC4 & 0xC8 REG_ASRMCR1i */ |
| #define ASRMCR1i_IWD_WIDTH 3 |
| #define ASRMCR1i_IWD_SHIFT 9 |
| #define ASRMCR1i_IWD_MASK (((1 << ASRMCR1i_IWD_WIDTH) - 1) << ASRMCR1i_IWD_SHIFT) |
| #define ASRMCR1i_IWD(v) ((v) << ASRMCR1i_IWD_SHIFT) |
| #define ASRMCR1i_IMSB_SHIFT 8 |
| #define ASRMCR1i_IMSB_MASK (1 << ASRMCR1i_IMSB_SHIFT) |
| #define ASRMCR1i_IMSB_MSB (1 << ASRMCR1i_IMSB_SHIFT) |
| #define ASRMCR1i_IMSB_LSB (0 << ASRMCR1i_IMSB_SHIFT) |
| #define ASRMCR1i_OMSB_SHIFT 2 |
| #define ASRMCR1i_OMSB_MASK (1 << ASRMCR1i_OMSB_SHIFT) |
| #define ASRMCR1i_OMSB_MSB (1 << ASRMCR1i_OMSB_SHIFT) |
| #define ASRMCR1i_OMSB_LSB (0 << ASRMCR1i_OMSB_SHIFT) |
| #define ASRMCR1i_OSGN_SHIFT 1 |
| #define ASRMCR1i_OSGN_MASK (1 << ASRMCR1i_OSGN_SHIFT) |
| #define ASRMCR1i_OSGN (1 << ASRMCR1i_OSGN_SHIFT) |
| #define ASRMCR1i_OW16_SHIFT 0 |
| #define ASRMCR1i_OW16_MASK (1 << ASRMCR1i_OW16_SHIFT) |
| #define ASRMCR1i_OW16(v) ((v) << ASRMCR1i_OW16_SHIFT) |
| |
| #define ASRC_CLK_MAX_NUM 16 |
| |
| |
| struct dma_block { |
| dma_addr_t dma_paddr; |
| void *dma_vaddr; |
| unsigned int length; |
| }; |
| |
| /** |
| * fsl_asrc_pair: ASRC Pair private data |
| * |
| * @asrc_priv: pointer to its parent module |
| * @config: configuration profile |
| * @error: error record |
| * @index: pair index (ASRC_PAIR_A, ASRC_PAIR_B, ASRC_PAIR_C) |
| * @channels: occupied channel number |
| * @desc: input and output dma descriptors |
| * @dma_chan: inputer and output DMA channels |
| * @dma_data: private dma data |
| * @pos: hardware pointer position |
| * @private: pair private area |
| */ |
| struct fsl_asrc_pair { |
| struct fsl_asrc *asrc_priv; |
| struct asrc_config *config; |
| unsigned int error; |
| |
| enum asrc_pair_index index; |
| unsigned int channels; |
| |
| struct dma_async_tx_descriptor *desc[2]; |
| struct dma_chan *dma_chan[2]; |
| struct imx_dma_data dma_data; |
| unsigned int pos; |
| |
| void *private; |
| }; |
| |
| /** |
| * fsl_asrc_pair: ASRC private data |
| * |
| * @dma_params_rx: DMA parameters for receive channel |
| * @dma_params_tx: DMA parameters for transmit channel |
| * @pdev: platform device pointer |
| * @regmap: regmap handler |
| * @paddr: physical address to the base address of registers |
| * @mem_clk: clock source to access register |
| * @ipg_clk: clock source to drive peripheral |
| * @asrck_clk: clock sources to driver ASRC internal logic |
| * @lock: spin lock for resource protection |
| * @pair: pair pointers |
| * @channel_bits: width of ASRCNCR register for each pair |
| * @channel_avail: non-occupied channel numbers |
| * @asrc_rate: default sample rate for ASoC Back-Ends |
| * @asrc_width: default sample width for ASoC Back-Ends |
| */ |
| struct fsl_asrc { |
| struct snd_dmaengine_dai_dma_data dma_params_rx; |
| struct snd_dmaengine_dai_dma_data dma_params_tx; |
| struct platform_device *pdev; |
| struct regmap *regmap; |
| unsigned long paddr; |
| struct clk *mem_clk; |
| struct clk *ipg_clk; |
| struct clk *dma_clk; |
| struct clk *asrck_clk[ASRC_CLK_MAX_NUM]; |
| spinlock_t lock; |
| |
| struct snd_pcm_substream *substream[2]; |
| struct fsl_asrc_pair *pair[ASRC_PAIR_MAX_NUM]; |
| unsigned int channel_bits; |
| unsigned int channel_avail; |
| |
| int asrc_rate; |
| int asrc_width; |
| |
| u32 regcache_cfg; |
| }; |
| |
| extern struct snd_soc_platform_driver fsl_asrc_platform; |
| struct dma_chan *fsl_asrc_get_dma_channel(struct fsl_asrc_pair *pair, bool dir); |
| |
| #endif /* _FSL_ASRC_H */ |
