1 /* 2 * Copyright 2012-2013 Freescale Semiconductor, Inc. 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License version 2 as 6 * published by the Free Software Foundation. 7 */ 8 9 #ifndef __FSL_SAI_H 10 #define __FSL_SAI_H 11 12 #include <sound/dmaengine_pcm.h> 13 14 #define FSL_SAI_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\ 15 SNDRV_PCM_FMTBIT_S20_3LE |\ 16 SNDRV_PCM_FMTBIT_S24_LE) 17 18 /* SAI Register Map Register */ 19 #define FSL_SAI_TCSR 0x00 /* SAI Transmit Control */ 20 #define FSL_SAI_TCR1 0x04 /* SAI Transmit Configuration 1 */ 21 #define FSL_SAI_TCR2 0x08 /* SAI Transmit Configuration 2 */ 22 #define FSL_SAI_TCR3 0x0c /* SAI Transmit Configuration 3 */ 23 #define FSL_SAI_TCR4 0x10 /* SAI Transmit Configuration 4 */ 24 #define FSL_SAI_TCR5 0x14 /* SAI Transmit Configuration 5 */ 25 #define FSL_SAI_TDR 0x20 /* SAI Transmit Data */ 26 #define FSL_SAI_TFR 0x40 /* SAI Transmit FIFO */ 27 #define FSL_SAI_TMR 0x60 /* SAI Transmit Mask */ 28 #define FSL_SAI_RCSR 0x80 /* SAI Receive Control */ 29 #define FSL_SAI_RCR1 0x84 /* SAI Receive Configuration 1 */ 30 #define FSL_SAI_RCR2 0x88 /* SAI Receive Configuration 2 */ 31 #define FSL_SAI_RCR3 0x8c /* SAI Receive Configuration 3 */ 32 #define FSL_SAI_RCR4 0x90 /* SAI Receive Configuration 4 */ 33 #define FSL_SAI_RCR5 0x94 /* SAI Receive Configuration 5 */ 34 #define FSL_SAI_RDR 0xa0 /* SAI Receive Data */ 35 #define FSL_SAI_RFR 0xc0 /* SAI Receive FIFO */ 36 #define FSL_SAI_RMR 0xe0 /* SAI Receive Mask */ 37 38 #define FSL_SAI_xCSR(tx) (tx ? FSL_SAI_TCSR : FSL_SAI_RCSR) 39 #define FSL_SAI_xCR1(tx) (tx ? FSL_SAI_TCR1 : FSL_SAI_RCR1) 40 #define FSL_SAI_xCR2(tx) (tx ? FSL_SAI_TCR2 : FSL_SAI_RCR2) 41 #define FSL_SAI_xCR3(tx) (tx ? FSL_SAI_TCR3 : FSL_SAI_RCR3) 42 #define FSL_SAI_xCR4(tx) (tx ? FSL_SAI_TCR4 : FSL_SAI_RCR4) 43 #define FSL_SAI_xCR5(tx) (tx ? FSL_SAI_TCR5 : FSL_SAI_RCR5) 44 #define FSL_SAI_xDR(tx) (tx ? FSL_SAI_TDR : FSL_SAI_RDR) 45 #define FSL_SAI_xFR(tx) (tx ? FSL_SAI_TFR : FSL_SAI_RFR) 46 #define FSL_SAI_xMR(tx) (tx ? FSL_SAI_TMR : FSL_SAI_RMR) 47 48 /* SAI Transmit/Recieve Control Register */ 49 #define FSL_SAI_CSR_TERE BIT(31) 50 #define FSL_SAI_CSR_FR BIT(25) 51 #define FSL_SAI_CSR_SR BIT(24) 52 #define FSL_SAI_CSR_xF_SHIFT 16 53 #define FSL_SAI_CSR_xF_W_SHIFT 18 54 #define FSL_SAI_CSR_xF_MASK (0x1f << FSL_SAI_CSR_xF_SHIFT) 55 #define FSL_SAI_CSR_xF_W_MASK (0x7 << FSL_SAI_CSR_xF_W_SHIFT) 56 #define FSL_SAI_CSR_WSF BIT(20) 57 #define FSL_SAI_CSR_SEF BIT(19) 58 #define FSL_SAI_CSR_FEF BIT(18) 59 #define FSL_SAI_CSR_FWF BIT(17) 60 #define FSL_SAI_CSR_FRF BIT(16) 61 #define FSL_SAI_CSR_xIE_SHIFT 8 62 #define FSL_SAI_CSR_xIE_MASK (0x1f << FSL_SAI_CSR_xIE_SHIFT) 63 #define FSL_SAI_CSR_WSIE BIT(12) 64 #define FSL_SAI_CSR_SEIE BIT(11) 65 #define FSL_SAI_CSR_FEIE BIT(10) 66 #define FSL_SAI_CSR_FWIE BIT(9) 67 #define FSL_SAI_CSR_FRIE BIT(8) 68 #define FSL_SAI_CSR_FRDE BIT(0) 69 70 /* SAI Transmit and Recieve Configuration 1 Register */ 71 #define FSL_SAI_CR1_RFW_MASK 0x1f 72 73 /* SAI Transmit and Recieve Configuration 2 Register */ 74 #define FSL_SAI_CR2_SYNC BIT(30) 75 #define FSL_SAI_CR2_MSEL_MASK (0x3 << 26) 76 #define FSL_SAI_CR2_MSEL_BUS 0 77 #define FSL_SAI_CR2_MSEL_MCLK1 BIT(26) 78 #define FSL_SAI_CR2_MSEL_MCLK2 BIT(27) 79 #define FSL_SAI_CR2_MSEL_MCLK3 (BIT(26) | BIT(27)) 80 #define FSL_SAI_CR2_MSEL(ID) ((ID) << 26) 81 #define FSL_SAI_CR2_BCP BIT(25) 82 #define FSL_SAI_CR2_BCD_MSTR BIT(24) 83 #define FSL_SAI_CR2_DIV_MASK 0xff 84 85 /* SAI Transmit and Recieve Configuration 3 Register */ 86 #define FSL_SAI_CR3_TRCE BIT(16) 87 #define FSL_SAI_CR3_WDFL(x) (x) 88 #define FSL_SAI_CR3_WDFL_MASK 0x1f 89 90 /* SAI Transmit and Recieve Configuration 4 Register */ 91 #define FSL_SAI_CR4_FRSZ(x) (((x) - 1) << 16) 92 #define FSL_SAI_CR4_FRSZ_MASK (0x1f << 16) 93 #define FSL_SAI_CR4_SYWD(x) (((x) - 1) << 8) 94 #define FSL_SAI_CR4_SYWD_MASK (0x1f << 8) 95 #define FSL_SAI_CR4_MF BIT(4) 96 #define FSL_SAI_CR4_FSE BIT(3) 97 #define FSL_SAI_CR4_FSP BIT(1) 98 #define FSL_SAI_CR4_FSD_MSTR BIT(0) 99 100 /* SAI Transmit and Recieve Configuration 5 Register */ 101 #define FSL_SAI_CR5_WNW(x) (((x) - 1) << 24) 102 #define FSL_SAI_CR5_WNW_MASK (0x1f << 24) 103 #define FSL_SAI_CR5_W0W(x) (((x) - 1) << 16) 104 #define FSL_SAI_CR5_W0W_MASK (0x1f << 16) 105 #define FSL_SAI_CR5_FBT(x) ((x) << 8) 106 #define FSL_SAI_CR5_FBT_MASK (0x1f << 8) 107 108 /* SAI type */ 109 #define FSL_SAI_DMA BIT(0) 110 #define FSL_SAI_USE_AC97 BIT(1) 111 #define FSL_SAI_NET BIT(2) 112 #define FSL_SAI_TRA_SYN BIT(3) 113 #define FSL_SAI_REC_SYN BIT(4) 114 #define FSL_SAI_USE_I2S_SLAVE BIT(5) 115 116 #define FSL_FMT_TRANSMITTER 0 117 #define FSL_FMT_RECEIVER 1 118 119 /* SAI clock sources */ 120 #define FSL_SAI_CLK_BUS 0 121 #define FSL_SAI_CLK_MAST1 1 122 #define FSL_SAI_CLK_MAST2 2 123 #define FSL_SAI_CLK_MAST3 3 124 125 #define FSL_SAI_MCLK_MAX 4 126 127 /* SAI data transfer numbers per DMA request */ 128 #define FSL_SAI_MAXBURST_TX 6 129 #define FSL_SAI_MAXBURST_RX 6 130 131 struct fsl_sai { 132 struct platform_device *pdev; 133 struct regmap *regmap; 134 struct clk *bus_clk; 135 struct clk *mclk_clk[FSL_SAI_MCLK_MAX]; 136 137 bool is_slave_mode; 138 bool is_lsb_first; 139 bool is_dsp_mode; 140 bool sai_on_imx; 141 bool synchronous[2]; 142 143 unsigned int mclk_id[2]; 144 unsigned int mclk_streams; 145 struct snd_dmaengine_dai_dma_data dma_params_rx; 146 struct snd_dmaengine_dai_dma_data dma_params_tx; 147 }; 148 149 #define TX 1 150 #define RX 0 151 152 #endif /* __FSL_SAI_H */ 153