1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * fsl_ssi.h - ALSA SSI interface for the Freescale MPC8610 and i.MX SoC 4 * 5 * Author: Timur Tabi <timur@freescale.com> 6 * 7 * Copyright 2007-2008 Freescale Semiconductor, Inc. 8 */ 9 10 #ifndef _MPC8610_I2S_H 11 #define _MPC8610_I2S_H 12 13 /* -- SSI Register Map -- */ 14 15 /* SSI Transmit Data Register 0 */ 16 #define REG_SSI_STX0 0x00 17 /* SSI Transmit Data Register 1 */ 18 #define REG_SSI_STX1 0x04 19 /* SSI Receive Data Register 0 */ 20 #define REG_SSI_SRX0 0x08 21 /* SSI Receive Data Register 1 */ 22 #define REG_SSI_SRX1 0x0c 23 /* SSI Control Register */ 24 #define REG_SSI_SCR 0x10 25 /* SSI Interrupt Status Register */ 26 #define REG_SSI_SISR 0x14 27 /* SSI Interrupt Enable Register */ 28 #define REG_SSI_SIER 0x18 29 /* SSI Transmit Configuration Register */ 30 #define REG_SSI_STCR 0x1c 31 /* SSI Receive Configuration Register */ 32 #define REG_SSI_SRCR 0x20 33 #define REG_SSI_SxCR(tx) ((tx) ? REG_SSI_STCR : REG_SSI_SRCR) 34 /* SSI Transmit Clock Control Register */ 35 #define REG_SSI_STCCR 0x24 36 /* SSI Receive Clock Control Register */ 37 #define REG_SSI_SRCCR 0x28 38 #define REG_SSI_SxCCR(tx) ((tx) ? REG_SSI_STCCR : REG_SSI_SRCCR) 39 /* SSI FIFO Control/Status Register */ 40 #define REG_SSI_SFCSR 0x2c 41 /* 42 * SSI Test Register (Intended for debugging purposes only) 43 * 44 * Note: STR is not documented in recent IMX datasheet, but 45 * is described in IMX51 reference manual at section 56.3.3.14 46 */ 47 #define REG_SSI_STR 0x30 48 /* 49 * SSI Option Register (Intended for internal use only) 50 * 51 * Note: SOR is not documented in recent IMX datasheet, but 52 * is described in IMX51 reference manual at section 56.3.3.15 53 */ 54 #define REG_SSI_SOR 0x34 55 /* SSI AC97 Control Register */ 56 #define REG_SSI_SACNT 0x38 57 /* SSI AC97 Command Address Register */ 58 #define REG_SSI_SACADD 0x3c 59 /* SSI AC97 Command Data Register */ 60 #define REG_SSI_SACDAT 0x40 61 /* SSI AC97 Tag Register */ 62 #define REG_SSI_SATAG 0x44 63 /* SSI Transmit Time Slot Mask Register */ 64 #define REG_SSI_STMSK 0x48 65 /* SSI Receive Time Slot Mask Register */ 66 #define REG_SSI_SRMSK 0x4c 67 #define REG_SSI_SxMSK(tx) ((tx) ? REG_SSI_STMSK : REG_SSI_SRMSK) 68 /* 69 * SSI AC97 Channel Status Register 70 * 71 * The status could be changed by: 72 * 1) Writing a '1' bit at some position in SACCEN sets relevant bit in SACCST 73 * 2) Writing a '1' bit at some position in SACCDIS unsets the relevant bit 74 * 3) Receivng a '1' in SLOTREQ bit from external CODEC via AC Link 75 */ 76 #define REG_SSI_SACCST 0x50 77 /* SSI AC97 Channel Enable Register -- Set bits in SACCST */ 78 #define REG_SSI_SACCEN 0x54 79 /* SSI AC97 Channel Disable Register -- Clear bits in SACCST */ 80 #define REG_SSI_SACCDIS 0x58 81 82 /* -- SSI Register Field Maps -- */ 83 84 /* SSI Control Register -- REG_SSI_SCR 0x10 */ 85 #define SSI_SCR_SYNC_TX_FS 0x00001000 86 #define SSI_SCR_RFR_CLK_DIS 0x00000800 87 #define SSI_SCR_TFR_CLK_DIS 0x00000400 88 #define SSI_SCR_TCH_EN 0x00000100 89 #define SSI_SCR_SYS_CLK_EN 0x00000080 90 #define SSI_SCR_I2S_MODE_MASK 0x00000060 91 #define SSI_SCR_I2S_MODE_NORMAL 0x00000000 92 #define SSI_SCR_I2S_MODE_MASTER 0x00000020 93 #define SSI_SCR_I2S_MODE_SLAVE 0x00000040 94 #define SSI_SCR_SYN 0x00000010 95 #define SSI_SCR_NET 0x00000008 96 #define SSI_SCR_I2S_NET_MASK (SSI_SCR_NET | SSI_SCR_I2S_MODE_MASK) 97 #define SSI_SCR_RE 0x00000004 98 #define SSI_SCR_TE 0x00000002 99 #define SSI_SCR_SSIEN 0x00000001 100 101 /* SSI Interrupt Status Register -- REG_SSI_SISR 0x14 */ 102 #define SSI_SISR_RFRC 0x01000000 103 #define SSI_SISR_TFRC 0x00800000 104 #define SSI_SISR_CMDAU 0x00040000 105 #define SSI_SISR_CMDDU 0x00020000 106 #define SSI_SISR_RXT 0x00010000 107 #define SSI_SISR_RDR1 0x00008000 108 #define SSI_SISR_RDR0 0x00004000 109 #define SSI_SISR_TDE1 0x00002000 110 #define SSI_SISR_TDE0 0x00001000 111 #define SSI_SISR_ROE1 0x00000800 112 #define SSI_SISR_ROE0 0x00000400 113 #define SSI_SISR_TUE1 0x00000200 114 #define SSI_SISR_TUE0 0x00000100 115 #define SSI_SISR_TFS 0x00000080 116 #define SSI_SISR_RFS 0x00000040 117 #define SSI_SISR_TLS 0x00000020 118 #define SSI_SISR_RLS 0x00000010 119 #define SSI_SISR_RFF1 0x00000008 120 #define SSI_SISR_RFF0 0x00000004 121 #define SSI_SISR_TFE1 0x00000002 122 #define SSI_SISR_TFE0 0x00000001 123 124 /* SSI Interrupt Enable Register -- REG_SSI_SIER 0x18 */ 125 #define SSI_SIER_RFRC_EN 0x01000000 126 #define SSI_SIER_TFRC_EN 0x00800000 127 #define SSI_SIER_RDMAE 0x00400000 128 #define SSI_SIER_RIE 0x00200000 129 #define SSI_SIER_TDMAE 0x00100000 130 #define SSI_SIER_TIE 0x00080000 131 #define SSI_SIER_CMDAU_EN 0x00040000 132 #define SSI_SIER_CMDDU_EN 0x00020000 133 #define SSI_SIER_RXT_EN 0x00010000 134 #define SSI_SIER_RDR1_EN 0x00008000 135 #define SSI_SIER_RDR0_EN 0x00004000 136 #define SSI_SIER_TDE1_EN 0x00002000 137 #define SSI_SIER_TDE0_EN 0x00001000 138 #define SSI_SIER_ROE1_EN 0x00000800 139 #define SSI_SIER_ROE0_EN 0x00000400 140 #define SSI_SIER_TUE1_EN 0x00000200 141 #define SSI_SIER_TUE0_EN 0x00000100 142 #define SSI_SIER_TFS_EN 0x00000080 143 #define SSI_SIER_RFS_EN 0x00000040 144 #define SSI_SIER_TLS_EN 0x00000020 145 #define SSI_SIER_RLS_EN 0x00000010 146 #define SSI_SIER_RFF1_EN 0x00000008 147 #define SSI_SIER_RFF0_EN 0x00000004 148 #define SSI_SIER_TFE1_EN 0x00000002 149 #define SSI_SIER_TFE0_EN 0x00000001 150 151 /* SSI Transmit Configuration Register -- REG_SSI_STCR 0x1C */ 152 #define SSI_STCR_TXBIT0 0x00000200 153 #define SSI_STCR_TFEN1 0x00000100 154 #define SSI_STCR_TFEN0 0x00000080 155 #define SSI_STCR_TFDIR 0x00000040 156 #define SSI_STCR_TXDIR 0x00000020 157 #define SSI_STCR_TSHFD 0x00000010 158 #define SSI_STCR_TSCKP 0x00000008 159 #define SSI_STCR_TFSI 0x00000004 160 #define SSI_STCR_TFSL 0x00000002 161 #define SSI_STCR_TEFS 0x00000001 162 163 /* SSI Receive Configuration Register -- REG_SSI_SRCR 0x20 */ 164 #define SSI_SRCR_RXEXT 0x00000400 165 #define SSI_SRCR_RXBIT0 0x00000200 166 #define SSI_SRCR_RFEN1 0x00000100 167 #define SSI_SRCR_RFEN0 0x00000080 168 #define SSI_SRCR_RFDIR 0x00000040 169 #define SSI_SRCR_RXDIR 0x00000020 170 #define SSI_SRCR_RSHFD 0x00000010 171 #define SSI_SRCR_RSCKP 0x00000008 172 #define SSI_SRCR_RFSI 0x00000004 173 #define SSI_SRCR_RFSL 0x00000002 174 #define SSI_SRCR_REFS 0x00000001 175 176 /* 177 * SSI Transmit Clock Control Register -- REG_SSI_STCCR 0x24 178 * SSI Receive Clock Control Register -- REG_SSI_SRCCR 0x28 179 */ 180 #define SSI_SxCCR_DIV2_SHIFT 18 181 #define SSI_SxCCR_DIV2 0x00040000 182 #define SSI_SxCCR_PSR_SHIFT 17 183 #define SSI_SxCCR_PSR 0x00020000 184 #define SSI_SxCCR_WL_SHIFT 13 185 #define SSI_SxCCR_WL_MASK 0x0001E000 186 #define SSI_SxCCR_WL(x) \ 187 (((((x) / 2) - 1) << SSI_SxCCR_WL_SHIFT) & SSI_SxCCR_WL_MASK) 188 #define SSI_SxCCR_DC_SHIFT 8 189 #define SSI_SxCCR_DC_MASK 0x00001F00 190 #define SSI_SxCCR_DC(x) \ 191 ((((x) - 1) << SSI_SxCCR_DC_SHIFT) & SSI_SxCCR_DC_MASK) 192 #define SSI_SxCCR_PM_SHIFT 0 193 #define SSI_SxCCR_PM_MASK 0x000000FF 194 #define SSI_SxCCR_PM(x) \ 195 ((((x) - 1) << SSI_SxCCR_PM_SHIFT) & SSI_SxCCR_PM_MASK) 196 197 /* 198 * SSI FIFO Control/Status Register -- REG_SSI_SFCSR 0x2c 199 * 200 * Tx or Rx FIFO Counter -- SSI_SFCSR_xFCNTy Read-Only 201 * Tx or Rx FIFO Watermarks -- SSI_SFCSR_xFWMy Read/Write 202 */ 203 #define SSI_SFCSR_RFCNT1_SHIFT 28 204 #define SSI_SFCSR_RFCNT1_MASK 0xF0000000 205 #define SSI_SFCSR_RFCNT1(x) \ 206 (((x) & SSI_SFCSR_RFCNT1_MASK) >> SSI_SFCSR_RFCNT1_SHIFT) 207 #define SSI_SFCSR_TFCNT1_SHIFT 24 208 #define SSI_SFCSR_TFCNT1_MASK 0x0F000000 209 #define SSI_SFCSR_TFCNT1(x) \ 210 (((x) & SSI_SFCSR_TFCNT1_MASK) >> SSI_SFCSR_TFCNT1_SHIFT) 211 #define SSI_SFCSR_RFWM1_SHIFT 20 212 #define SSI_SFCSR_RFWM1_MASK 0x00F00000 213 #define SSI_SFCSR_RFWM1(x) \ 214 (((x) << SSI_SFCSR_RFWM1_SHIFT) & SSI_SFCSR_RFWM1_MASK) 215 #define SSI_SFCSR_TFWM1_SHIFT 16 216 #define SSI_SFCSR_TFWM1_MASK 0x000F0000 217 #define SSI_SFCSR_TFWM1(x) \ 218 (((x) << SSI_SFCSR_TFWM1_SHIFT) & SSI_SFCSR_TFWM1_MASK) 219 #define SSI_SFCSR_RFCNT0_SHIFT 12 220 #define SSI_SFCSR_RFCNT0_MASK 0x0000F000 221 #define SSI_SFCSR_RFCNT0(x) \ 222 (((x) & SSI_SFCSR_RFCNT0_MASK) >> SSI_SFCSR_RFCNT0_SHIFT) 223 #define SSI_SFCSR_TFCNT0_SHIFT 8 224 #define SSI_SFCSR_TFCNT0_MASK 0x00000F00 225 #define SSI_SFCSR_TFCNT0(x) \ 226 (((x) & SSI_SFCSR_TFCNT0_MASK) >> SSI_SFCSR_TFCNT0_SHIFT) 227 #define SSI_SFCSR_RFWM0_SHIFT 4 228 #define SSI_SFCSR_RFWM0_MASK 0x000000F0 229 #define SSI_SFCSR_RFWM0(x) \ 230 (((x) << SSI_SFCSR_RFWM0_SHIFT) & SSI_SFCSR_RFWM0_MASK) 231 #define SSI_SFCSR_TFWM0_SHIFT 0 232 #define SSI_SFCSR_TFWM0_MASK 0x0000000F 233 #define SSI_SFCSR_TFWM0(x) \ 234 (((x) << SSI_SFCSR_TFWM0_SHIFT) & SSI_SFCSR_TFWM0_MASK) 235 236 /* SSI Test Register -- REG_SSI_STR 0x30 */ 237 #define SSI_STR_TEST 0x00008000 238 #define SSI_STR_RCK2TCK 0x00004000 239 #define SSI_STR_RFS2TFS 0x00002000 240 #define SSI_STR_RXSTATE(x) (((x) >> 8) & 0x1F) 241 #define SSI_STR_TXD2RXD 0x00000080 242 #define SSI_STR_TCK2RCK 0x00000040 243 #define SSI_STR_TFS2RFS 0x00000020 244 #define SSI_STR_TXSTATE(x) ((x) & 0x1F) 245 246 /* SSI Option Register -- REG_SSI_SOR 0x34 */ 247 #define SSI_SOR_CLKOFF 0x00000040 248 #define SSI_SOR_RX_CLR 0x00000020 249 #define SSI_SOR_TX_CLR 0x00000010 250 #define SSI_SOR_xX_CLR(tx) ((tx) ? SSI_SOR_TX_CLR : SSI_SOR_RX_CLR) 251 #define SSI_SOR_INIT 0x00000008 252 #define SSI_SOR_WAIT_SHIFT 1 253 #define SSI_SOR_WAIT_MASK 0x00000006 254 #define SSI_SOR_WAIT(x) (((x) & 3) << SSI_SOR_WAIT_SHIFT) 255 #define SSI_SOR_SYNRST 0x00000001 256 257 /* SSI AC97 Control Register -- REG_SSI_SACNT 0x38 */ 258 #define SSI_SACNT_FRDIV(x) (((x) & 0x3f) << 5) 259 #define SSI_SACNT_WR 0x00000010 260 #define SSI_SACNT_RD 0x00000008 261 #define SSI_SACNT_RDWR_MASK 0x00000018 262 #define SSI_SACNT_TIF 0x00000004 263 #define SSI_SACNT_FV 0x00000002 264 #define SSI_SACNT_AC97EN 0x00000001 265 266 267 struct device; 268 269 #if IS_ENABLED(CONFIG_DEBUG_FS) 270 271 struct fsl_ssi_dbg { 272 struct dentry *dbg_dir; 273 274 struct { 275 unsigned int rfrc; 276 unsigned int tfrc; 277 unsigned int cmdau; 278 unsigned int cmddu; 279 unsigned int rxt; 280 unsigned int rdr1; 281 unsigned int rdr0; 282 unsigned int tde1; 283 unsigned int tde0; 284 unsigned int roe1; 285 unsigned int roe0; 286 unsigned int tue1; 287 unsigned int tue0; 288 unsigned int tfs; 289 unsigned int rfs; 290 unsigned int tls; 291 unsigned int rls; 292 unsigned int rff1; 293 unsigned int rff0; 294 unsigned int tfe1; 295 unsigned int tfe0; 296 } stats; 297 }; 298 299 void fsl_ssi_dbg_isr(struct fsl_ssi_dbg *ssi_dbg, u32 sisr); 300 301 void fsl_ssi_debugfs_create(struct fsl_ssi_dbg *ssi_dbg, struct device *dev); 302 303 void fsl_ssi_debugfs_remove(struct fsl_ssi_dbg *ssi_dbg); 304 305 #else 306 307 struct fsl_ssi_dbg { 308 }; 309 310 static inline void fsl_ssi_dbg_isr(struct fsl_ssi_dbg *stats, u32 sisr) 311 { 312 } 313 314 static inline void fsl_ssi_debugfs_create(struct fsl_ssi_dbg *ssi_dbg, 315 struct device *dev) 316 { 317 } 318 319 static inline void fsl_ssi_debugfs_remove(struct fsl_ssi_dbg *ssi_dbg) 320 { 321 } 322 #endif /* ! IS_ENABLED(CONFIG_DEBUG_FS) */ 323 324 #endif 325