1 /* 2 * This program is free software; you can redistribute it and/or modify 3 * it under the terms of the GNU General Public License version 2 as 4 * published by the Free Software Foundation. 5 */ 6 7 #ifndef _IMX_SSI_H 8 #define _IMX_SSI_H 9 10 #define SSI_STX0 0x00 11 #define SSI_STX1 0x04 12 #define SSI_SRX0 0x08 13 #define SSI_SRX1 0x0c 14 15 #define SSI_SCR 0x10 16 #define SSI_SCR_CLK_IST (1 << 9) 17 #define SSI_SCR_CLK_IST_SHIFT 9 18 #define SSI_SCR_TCH_EN (1 << 8) 19 #define SSI_SCR_SYS_CLK_EN (1 << 7) 20 #define SSI_SCR_I2S_MODE_NORM (0 << 5) 21 #define SSI_SCR_I2S_MODE_MSTR (1 << 5) 22 #define SSI_SCR_I2S_MODE_SLAVE (2 << 5) 23 #define SSI_I2S_MODE_MASK (3 << 5) 24 #define SSI_SCR_SYN (1 << 4) 25 #define SSI_SCR_NET (1 << 3) 26 #define SSI_SCR_RE (1 << 2) 27 #define SSI_SCR_TE (1 << 1) 28 #define SSI_SCR_SSIEN (1 << 0) 29 30 #define SSI_SISR 0x14 31 #define SSI_SISR_MASK ((1 << 19) - 1) 32 #define SSI_SISR_CMDAU (1 << 18) 33 #define SSI_SISR_CMDDU (1 << 17) 34 #define SSI_SISR_RXT (1 << 16) 35 #define SSI_SISR_RDR1 (1 << 15) 36 #define SSI_SISR_RDR0 (1 << 14) 37 #define SSI_SISR_TDE1 (1 << 13) 38 #define SSI_SISR_TDE0 (1 << 12) 39 #define SSI_SISR_ROE1 (1 << 11) 40 #define SSI_SISR_ROE0 (1 << 10) 41 #define SSI_SISR_TUE1 (1 << 9) 42 #define SSI_SISR_TUE0 (1 << 8) 43 #define SSI_SISR_TFS (1 << 7) 44 #define SSI_SISR_RFS (1 << 6) 45 #define SSI_SISR_TLS (1 << 5) 46 #define SSI_SISR_RLS (1 << 4) 47 #define SSI_SISR_RFF1 (1 << 3) 48 #define SSI_SISR_RFF0 (1 << 2) 49 #define SSI_SISR_TFE1 (1 << 1) 50 #define SSI_SISR_TFE0 (1 << 0) 51 52 #define SSI_SIER 0x18 53 #define SSI_SIER_RDMAE (1 << 22) 54 #define SSI_SIER_RIE (1 << 21) 55 #define SSI_SIER_TDMAE (1 << 20) 56 #define SSI_SIER_TIE (1 << 19) 57 #define SSI_SIER_CMDAU_EN (1 << 18) 58 #define SSI_SIER_CMDDU_EN (1 << 17) 59 #define SSI_SIER_RXT_EN (1 << 16) 60 #define SSI_SIER_RDR1_EN (1 << 15) 61 #define SSI_SIER_RDR0_EN (1 << 14) 62 #define SSI_SIER_TDE1_EN (1 << 13) 63 #define SSI_SIER_TDE0_EN (1 << 12) 64 #define SSI_SIER_ROE1_EN (1 << 11) 65 #define SSI_SIER_ROE0_EN (1 << 10) 66 #define SSI_SIER_TUE1_EN (1 << 9) 67 #define SSI_SIER_TUE0_EN (1 << 8) 68 #define SSI_SIER_TFS_EN (1 << 7) 69 #define SSI_SIER_RFS_EN (1 << 6) 70 #define SSI_SIER_TLS_EN (1 << 5) 71 #define SSI_SIER_RLS_EN (1 << 4) 72 #define SSI_SIER_RFF1_EN (1 << 3) 73 #define SSI_SIER_RFF0_EN (1 << 2) 74 #define SSI_SIER_TFE1_EN (1 << 1) 75 #define SSI_SIER_TFE0_EN (1 << 0) 76 77 #define SSI_STCR 0x1c 78 #define SSI_STCR_TXBIT0 (1 << 9) 79 #define SSI_STCR_TFEN1 (1 << 8) 80 #define SSI_STCR_TFEN0 (1 << 7) 81 #define SSI_FIFO_ENABLE_0_SHIFT 7 82 #define SSI_STCR_TFDIR (1 << 6) 83 #define SSI_STCR_TXDIR (1 << 5) 84 #define SSI_STCR_TSHFD (1 << 4) 85 #define SSI_STCR_TSCKP (1 << 3) 86 #define SSI_STCR_TFSI (1 << 2) 87 #define SSI_STCR_TFSL (1 << 1) 88 #define SSI_STCR_TEFS (1 << 0) 89 90 #define SSI_SRCR 0x20 91 #define SSI_SRCR_RXBIT0 (1 << 9) 92 #define SSI_SRCR_RFEN1 (1 << 8) 93 #define SSI_SRCR_RFEN0 (1 << 7) 94 #define SSI_FIFO_ENABLE_0_SHIFT 7 95 #define SSI_SRCR_RFDIR (1 << 6) 96 #define SSI_SRCR_RXDIR (1 << 5) 97 #define SSI_SRCR_RSHFD (1 << 4) 98 #define SSI_SRCR_RSCKP (1 << 3) 99 #define SSI_SRCR_RFSI (1 << 2) 100 #define SSI_SRCR_RFSL (1 << 1) 101 #define SSI_SRCR_REFS (1 << 0) 102 103 #define SSI_SRCCR 0x28 104 #define SSI_SRCCR_DIV2 (1 << 18) 105 #define SSI_SRCCR_PSR (1 << 17) 106 #define SSI_SRCCR_WL(x) ((((x) - 2) >> 1) << 13) 107 #define SSI_SRCCR_DC(x) (((x) & 0x1f) << 8) 108 #define SSI_SRCCR_PM(x) (((x) & 0xff) << 0) 109 #define SSI_SRCCR_WL_MASK (0xf << 13) 110 #define SSI_SRCCR_DC_MASK (0x1f << 8) 111 #define SSI_SRCCR_PM_MASK (0xff << 0) 112 113 #define SSI_STCCR 0x24 114 #define SSI_STCCR_DIV2 (1 << 18) 115 #define SSI_STCCR_PSR (1 << 17) 116 #define SSI_STCCR_WL(x) ((((x) - 2) >> 1) << 13) 117 #define SSI_STCCR_DC(x) (((x) & 0x1f) << 8) 118 #define SSI_STCCR_PM(x) (((x) & 0xff) << 0) 119 #define SSI_STCCR_WL_MASK (0xf << 13) 120 #define SSI_STCCR_DC_MASK (0x1f << 8) 121 #define SSI_STCCR_PM_MASK (0xff << 0) 122 123 #define SSI_SFCSR 0x2c 124 #define SSI_SFCSR_RFCNT1(x) (((x) & 0xf) << 28) 125 #define SSI_RX_FIFO_1_COUNT_SHIFT 28 126 #define SSI_SFCSR_TFCNT1(x) (((x) & 0xf) << 24) 127 #define SSI_TX_FIFO_1_COUNT_SHIFT 24 128 #define SSI_SFCSR_RFWM1(x) (((x) & 0xf) << 20) 129 #define SSI_SFCSR_TFWM1(x) (((x) & 0xf) << 16) 130 #define SSI_SFCSR_RFCNT0(x) (((x) & 0xf) << 12) 131 #define SSI_RX_FIFO_0_COUNT_SHIFT 12 132 #define SSI_SFCSR_TFCNT0(x) (((x) & 0xf) << 8) 133 #define SSI_TX_FIFO_0_COUNT_SHIFT 8 134 #define SSI_SFCSR_RFWM0(x) (((x) & 0xf) << 4) 135 #define SSI_SFCSR_TFWM0(x) (((x) & 0xf) << 0) 136 #define SSI_SFCSR_RFWM0_MASK (0xf << 4) 137 #define SSI_SFCSR_TFWM0_MASK (0xf << 0) 138 139 #define SSI_STR 0x30 140 #define SSI_STR_TEST (1 << 15) 141 #define SSI_STR_RCK2TCK (1 << 14) 142 #define SSI_STR_RFS2TFS (1 << 13) 143 #define SSI_STR_RXSTATE(x) (((x) & 0xf) << 8) 144 #define SSI_STR_TXD2RXD (1 << 7) 145 #define SSI_STR_TCK2RCK (1 << 6) 146 #define SSI_STR_TFS2RFS (1 << 5) 147 #define SSI_STR_TXSTATE(x) (((x) & 0xf) << 0) 148 149 #define SSI_SOR 0x34 150 #define SSI_SOR_CLKOFF (1 << 6) 151 #define SSI_SOR_RX_CLR (1 << 5) 152 #define SSI_SOR_TX_CLR (1 << 4) 153 #define SSI_SOR_INIT (1 << 3) 154 #define SSI_SOR_WAIT(x) (((x) & 0x3) << 1) 155 #define SSI_SOR_WAIT_MASK (0x3 << 1) 156 #define SSI_SOR_SYNRST (1 << 0) 157 158 #define SSI_SACNT 0x38 159 #define SSI_SACNT_FRDIV(x) (((x) & 0x3f) << 5) 160 #define SSI_SACNT_WR (1 << 4) 161 #define SSI_SACNT_RD (1 << 3) 162 #define SSI_SACNT_TIF (1 << 2) 163 #define SSI_SACNT_FV (1 << 1) 164 #define SSI_SACNT_AC97EN (1 << 0) 165 166 #define SSI_SACADD 0x3c 167 #define SSI_SACDAT 0x40 168 #define SSI_SATAG 0x44 169 #define SSI_STMSK 0x48 170 #define SSI_SRMSK 0x4c 171 #define SSI_SACCST 0x50 172 #define SSI_SACCEN 0x54 173 #define SSI_SACCDIS 0x58 174 175 /* SSI clock sources */ 176 #define IMX_SSP_SYS_CLK 0 177 178 /* SSI audio dividers */ 179 #define IMX_SSI_TX_DIV_2 0 180 #define IMX_SSI_TX_DIV_PSR 1 181 #define IMX_SSI_TX_DIV_PM 2 182 #define IMX_SSI_RX_DIV_2 3 183 #define IMX_SSI_RX_DIV_PSR 4 184 #define IMX_SSI_RX_DIV_PM 5 185 186 #define DRV_NAME "imx-ssi" 187 188 #include <linux/dmaengine.h> 189 #include <linux/platform_data/dma-imx.h> 190 #include <sound/dmaengine_pcm.h> 191 #include "imx-pcm.h" 192 193 struct imx_ssi { 194 struct platform_device *ac97_dev; 195 196 struct snd_soc_dai *imx_ac97; 197 struct clk *clk; 198 void __iomem *base; 199 int irq; 200 int fiq_enable; 201 unsigned int offset; 202 203 unsigned int flags; 204 205 void (*ac97_reset) (struct snd_ac97 *ac97); 206 void (*ac97_warm_reset)(struct snd_ac97 *ac97); 207 208 struct snd_dmaengine_dai_dma_data dma_params_rx; 209 struct snd_dmaengine_dai_dma_data dma_params_tx; 210 struct imx_dma_data filter_data_tx; 211 struct imx_dma_data filter_data_rx; 212 213 int enabled; 214 }; 215 216 #endif /* _IMX_SSI_H */ 217