sound/soc/fsl/fsl_ssi.h

   1 /*
   2  * fsl_ssi.h - ALSA SSI interface for the Freescale MPC8610 SoC
   3  *
   4  * Author: Timur Tabi <timur@freescale.com>
   5  *
   6  * Copyright 2007-2008 Freescale Semiconductor, Inc.  This file is licensed
   7  * under the terms of the GNU General Public License version 2.  This
   8  * program is licensed "as is" without any warranty of any kind, whether
   9  * express or implied.
  10  */
  11
  12 #ifndef _MPC8610_I2S_H
  13 #define _MPC8610_I2S_H
  14
  15 /* SSI Register Map */
  16 struct ccsr_ssi {
  17         __be32 stx0;    /* 0x.0000 - SSI Transmit Data Register 0 */
  18         __be32 stx1;    /* 0x.0004 - SSI Transmit Data Register 1 */
  19         __be32 srx0;    /* 0x.0008 - SSI Receive Data Register 0 */
  20         __be32 srx1;    /* 0x.000C - SSI Receive Data Register 1 */
  21         __be32 scr;     /* 0x.0010 - SSI Control Register */
  22         __be32 sisr;    /* 0x.0014 - SSI Interrupt Status Register Mixed */
  23         __be32 sier;    /* 0x.0018 - SSI Interrupt Enable Register */
  24         __be32 stcr;    /* 0x.001C - SSI Transmit Configuration Register */
  25         __be32 srcr;    /* 0x.0020 - SSI Receive Configuration Register */
  26         __be32 stccr;   /* 0x.0024 - SSI Transmit Clock Control Register */
  27         __be32 srccr;   /* 0x.0028 - SSI Receive Clock Control Register */
  28         __be32 sfcsr;   /* 0x.002C - SSI FIFO Control/Status Register */
  29         __be32 str;     /* 0x.0030 - SSI Test Register */
  30         __be32 sor;     /* 0x.0034 - SSI Option Register */
  31         __be32 sacnt;   /* 0x.0038 - SSI AC97 Control Register */
  32         __be32 sacadd;  /* 0x.003C - SSI AC97 Command Address Register */
  33         __be32 sacdat;  /* 0x.0040 - SSI AC97 Command Data Register */
  34         __be32 satag;   /* 0x.0044 - SSI AC97 Tag Register */
  35         __be32 stmsk;   /* 0x.0048 - SSI Transmit Time Slot Mask Register */
  36         __be32 srmsk;   /* 0x.004C - SSI Receive Time Slot Mask Register */
  37         __be32 saccst;  /* 0x.0050 - SSI AC97 Channel Status Register */
  38         __be32 saccen;  /* 0x.0054 - SSI AC97 Channel Enable Register */
  39         __be32 saccdis; /* 0x.0058 - SSI AC97 Channel Disable Register */
  40 };
  41
  42 #define CCSR_SSI_SCR_SYNC_TX_FS         0x00001000
  43 #define CCSR_SSI_SCR_RFR_CLK_DIS        0x00000800
  44 #define CCSR_SSI_SCR_TFR_CLK_DIS        0x00000400
  45 #define CCSR_SSI_SCR_TCH_EN             0x00000100
  46 #define CCSR_SSI_SCR_SYS_CLK_EN         0x00000080
  47 #define CCSR_SSI_SCR_I2S_MODE_MASK      0x00000060
  48 #define CCSR_SSI_SCR_I2S_MODE_NORMAL    0x00000000
  49 #define CCSR_SSI_SCR_I2S_MODE_MASTER    0x00000020
  50 #define CCSR_SSI_SCR_I2S_MODE_SLAVE     0x00000040
  51 #define CCSR_SSI_SCR_SYN                0x00000010
  52 #define CCSR_SSI_SCR_NET                0x00000008
  53 #define CCSR_SSI_SCR_RE                 0x00000004
  54 #define CCSR_SSI_SCR_TE                 0x00000002
  55 #define CCSR_SSI_SCR_SSIEN              0x00000001
  56
  57 #define CCSR_SSI_SISR_RFRC              0x01000000
  58 #define CCSR_SSI_SISR_TFRC              0x00800000
  59 #define CCSR_SSI_SISR_CMDAU             0x00040000
  60 #define CCSR_SSI_SISR_CMDDU             0x00020000
  61 #define CCSR_SSI_SISR_RXT               0x00010000
  62 #define CCSR_SSI_SISR_RDR1              0x00008000
  63 #define CCSR_SSI_SISR_RDR0              0x00004000
  64 #define CCSR_SSI_SISR_TDE1              0x00002000
  65 #define CCSR_SSI_SISR_TDE0              0x00001000
  66 #define CCSR_SSI_SISR_ROE1              0x00000800
  67 #define CCSR_SSI_SISR_ROE0              0x00000400
  68 #define CCSR_SSI_SISR_TUE1              0x00000200
  69 #define CCSR_SSI_SISR_TUE0              0x00000100
  70 #define CCSR_SSI_SISR_TFS               0x00000080
  71 #define CCSR_SSI_SISR_RFS               0x00000040
  72 #define CCSR_SSI_SISR_TLS               0x00000020
  73 #define CCSR_SSI_SISR_RLS               0x00000010
  74 #define CCSR_SSI_SISR_RFF1              0x00000008
  75 #define CCSR_SSI_SISR_RFF0              0x00000004
  76 #define CCSR_SSI_SISR_TFE1              0x00000002
  77 #define CCSR_SSI_SISR_TFE0              0x00000001
  78
  79 #define CCSR_SSI_SIER_RFRC_EN           0x01000000
  80 #define CCSR_SSI_SIER_TFRC_EN           0x00800000
  81 #define CCSR_SSI_SIER_RDMAE             0x00400000
  82 #define CCSR_SSI_SIER_RIE               0x00200000
  83 #define CCSR_SSI_SIER_TDMAE             0x00100000
  84 #define CCSR_SSI_SIER_TIE               0x00080000
  85 #define CCSR_SSI_SIER_CMDAU_EN          0x00040000
  86 #define CCSR_SSI_SIER_CMDDU_EN          0x00020000
  87 #define CCSR_SSI_SIER_RXT_EN            0x00010000
  88 #define CCSR_SSI_SIER_RDR1_EN           0x00008000
  89 #define CCSR_SSI_SIER_RDR0_EN           0x00004000
  90 #define CCSR_SSI_SIER_TDE1_EN           0x00002000
  91 #define CCSR_SSI_SIER_TDE0_EN           0x00001000
  92 #define CCSR_SSI_SIER_ROE1_EN           0x00000800
  93 #define CCSR_SSI_SIER_ROE0_EN           0x00000400
  94 #define CCSR_SSI_SIER_TUE1_EN           0x00000200
  95 #define CCSR_SSI_SIER_TUE0_EN           0x00000100
  96 #define CCSR_SSI_SIER_TFS_EN            0x00000080
  97 #define CCSR_SSI_SIER_RFS_EN            0x00000040
  98 #define CCSR_SSI_SIER_TLS_EN            0x00000020
  99 #define CCSR_SSI_SIER_RLS_EN            0x00000010
 100 #define CCSR_SSI_SIER_RFF1_EN           0x00000008
 101 #define CCSR_SSI_SIER_RFF0_EN           0x00000004
 102 #define CCSR_SSI_SIER_TFE1_EN           0x00000002
 103 #define CCSR_SSI_SIER_TFE0_EN           0x00000001
 104
 105 #define CCSR_SSI_STCR_TXBIT0            0x00000200
 106 #define CCSR_SSI_STCR_TFEN1             0x00000100
 107 #define CCSR_SSI_STCR_TFEN0             0x00000080
 108 #define CCSR_SSI_STCR_TFDIR             0x00000040
 109 #define CCSR_SSI_STCR_TXDIR             0x00000020
 110 #define CCSR_SSI_STCR_TSHFD             0x00000010
 111 #define CCSR_SSI_STCR_TSCKP             0x00000008
 112 #define CCSR_SSI_STCR_TFSI              0x00000004
 113 #define CCSR_SSI_STCR_TFSL              0x00000002
 114 #define CCSR_SSI_STCR_TEFS              0x00000001
 115
 116 #define CCSR_SSI_SRCR_RXEXT             0x00000400
 117 #define CCSR_SSI_SRCR_RXBIT0            0x00000200
 118 #define CCSR_SSI_SRCR_RFEN1             0x00000100
 119 #define CCSR_SSI_SRCR_RFEN0             0x00000080
 120 #define CCSR_SSI_SRCR_RFDIR             0x00000040
 121 #define CCSR_SSI_SRCR_RXDIR             0x00000020
 122 #define CCSR_SSI_SRCR_RSHFD             0x00000010
 123 #define CCSR_SSI_SRCR_RSCKP             0x00000008
 124 #define CCSR_SSI_SRCR_RFSI              0x00000004
 125 #define CCSR_SSI_SRCR_RFSL              0x00000002
 126 #define CCSR_SSI_SRCR_REFS              0x00000001
 127
 128 /* STCCR and SRCCR */
 129 #define CCSR_SSI_SxCCR_DIV2_SHIFT       18
 130 #define CCSR_SSI_SxCCR_DIV2             0x00040000
 131 #define CCSR_SSI_SxCCR_PSR_SHIFT        17
 132 #define CCSR_SSI_SxCCR_PSR              0x00020000
 133 #define CCSR_SSI_SxCCR_WL_SHIFT         13
 134 #define CCSR_SSI_SxCCR_WL_MASK          0x0001E000
 135 #define CCSR_SSI_SxCCR_WL(x) \
 136         (((((x) / 2) - 1) << CCSR_SSI_SxCCR_WL_SHIFT) & CCSR_SSI_SxCCR_WL_MASK)
 137 #define CCSR_SSI_SxCCR_DC_SHIFT         8
 138 #define CCSR_SSI_SxCCR_DC_MASK          0x00001F00
 139 #define CCSR_SSI_SxCCR_DC(x) \
 140         ((((x) - 1) << CCSR_SSI_SxCCR_DC_SHIFT) & CCSR_SSI_SxCCR_DC_MASK)
 141 #define CCSR_SSI_SxCCR_PM_SHIFT         0
 142 #define CCSR_SSI_SxCCR_PM_MASK          0x000000FF
 143 #define CCSR_SSI_SxCCR_PM(x) \
 144         ((((x) - 1) << CCSR_SSI_SxCCR_PM_SHIFT) & CCSR_SSI_SxCCR_PM_MASK)
 145
 146 /*
 147  * The xFCNT bits are read-only, and the xFWM bits are read/write.  Use the
 148  * CCSR_SSI_SFCSR_xFCNTy() macros to read the FIFO counters, and use the
 149  * CCSR_SSI_SFCSR_xFWMy() macros to set the watermarks.
 150  */
 151 #define CCSR_SSI_SFCSR_RFCNT1_SHIFT     28
 152 #define CCSR_SSI_SFCSR_RFCNT1_MASK      0xF0000000
 153 #define CCSR_SSI_SFCSR_RFCNT1(x) \
 154         (((x) & CCSR_SSI_SFCSR_RFCNT1_MASK) >> CCSR_SSI_SFCSR_RFCNT1_SHIFT)
 155 #define CCSR_SSI_SFCSR_TFCNT1_SHIFT     24
 156 #define CCSR_SSI_SFCSR_TFCNT1_MASK      0x0F000000
 157 #define CCSR_SSI_SFCSR_TFCNT1(x) \
 158         (((x) & CCSR_SSI_SFCSR_TFCNT1_MASK) >> CCSR_SSI_SFCSR_TFCNT1_SHIFT)
 159 #define CCSR_SSI_SFCSR_RFWM1_SHIFT      20
 160 #define CCSR_SSI_SFCSR_RFWM1_MASK       0x00F00000
 161 #define CCSR_SSI_SFCSR_RFWM1(x) \
 162         (((x) << CCSR_SSI_SFCSR_RFWM1_SHIFT) & CCSR_SSI_SFCSR_RFWM1_MASK)
 163 #define CCSR_SSI_SFCSR_TFWM1_SHIFT      16
 164 #define CCSR_SSI_SFCSR_TFWM1_MASK       0x000F0000
 165 #define CCSR_SSI_SFCSR_TFWM1(x) \
 166         (((x) << CCSR_SSI_SFCSR_TFWM1_SHIFT) & CCSR_SSI_SFCSR_TFWM1_MASK)
 167 #define CCSR_SSI_SFCSR_RFCNT0_SHIFT     12
 168 #define CCSR_SSI_SFCSR_RFCNT0_MASK      0x0000F000
 169 #define CCSR_SSI_SFCSR_RFCNT0(x) \
 170         (((x) & CCSR_SSI_SFCSR_RFCNT0_MASK) >> CCSR_SSI_SFCSR_RFCNT0_SHIFT)
 171 #define CCSR_SSI_SFCSR_TFCNT0_SHIFT     8
 172 #define CCSR_SSI_SFCSR_TFCNT0_MASK      0x00000F00
 173 #define CCSR_SSI_SFCSR_TFCNT0(x) \
 174         (((x) & CCSR_SSI_SFCSR_TFCNT0_MASK) >> CCSR_SSI_SFCSR_TFCNT0_SHIFT)
 175 #define CCSR_SSI_SFCSR_RFWM0_SHIFT      4
 176 #define CCSR_SSI_SFCSR_RFWM0_MASK       0x000000F0
 177 #define CCSR_SSI_SFCSR_RFWM0(x) \
 178         (((x) << CCSR_SSI_SFCSR_RFWM0_SHIFT) & CCSR_SSI_SFCSR_RFWM0_MASK)
 179 #define CCSR_SSI_SFCSR_TFWM0_SHIFT      0
 180 #define CCSR_SSI_SFCSR_TFWM0_MASK       0x0000000F
 181 #define CCSR_SSI_SFCSR_TFWM0(x) \
 182         (((x) << CCSR_SSI_SFCSR_TFWM0_SHIFT) & CCSR_SSI_SFCSR_TFWM0_MASK)
 183
 184 #define CCSR_SSI_STR_TEST               0x00008000
 185 #define CCSR_SSI_STR_RCK2TCK            0x00004000
 186 #define CCSR_SSI_STR_RFS2TFS            0x00002000
 187 #define CCSR_SSI_STR_RXSTATE(x) (((x) >> 8) & 0x1F)
 188 #define CCSR_SSI_STR_TXD2RXD            0x00000080
 189 #define CCSR_SSI_STR_TCK2RCK            0x00000040
 190 #define CCSR_SSI_STR_TFS2RFS            0x00000020
 191 #define CCSR_SSI_STR_TXSTATE(x) ((x) & 0x1F)
 192
 193 #define CCSR_SSI_SOR_CLKOFF             0x00000040
 194 #define CCSR_SSI_SOR_RX_CLR             0x00000020
 195 #define CCSR_SSI_SOR_TX_CLR             0x00000010
 196 #define CCSR_SSI_SOR_INIT               0x00000008
 197 #define CCSR_SSI_SOR_WAIT_SHIFT         1
 198 #define CCSR_SSI_SOR_WAIT_MASK          0x00000006
 199 #define CCSR_SSI_SOR_WAIT(x) (((x) & 3) << CCSR_SSI_SOR_WAIT_SHIFT)
 200 #define CCSR_SSI_SOR_SYNRST             0x00000001
 201
 202 #define CCSR_SSI_SACNT_FRDIV(x)         (((x) & 0x3f) << 5)
 203 #define CCSR_SSI_SACNT_WR               0x00000010
 204 #define CCSR_SSI_SACNT_RD               0x00000008
 205 #define CCSR_SSI_SACNT_RDWR_MASK        0x00000018
 206 #define CCSR_SSI_SACNT_TIF              0x00000004
 207 #define CCSR_SSI_SACNT_FV               0x00000002
 208 #define CCSR_SSI_SACNT_AC97EN           0x00000001
 209
 210
 211 struct device;
 212
 213 #if IS_ENABLED(CONFIG_DEBUG_FS)
 214
 215 struct fsl_ssi_dbg {
 216         struct dentry *dbg_dir;
 217         struct dentry *dbg_stats;
 218
 219         struct {
 220                 unsigned int rfrc;
 221                 unsigned int tfrc;
 222                 unsigned int cmdau;
 223                 unsigned int cmddu;
 224                 unsigned int rxt;
 225                 unsigned int rdr1;
 226                 unsigned int rdr0;
 227                 unsigned int tde1;
 228                 unsigned int tde0;
 229                 unsigned int roe1;
 230                 unsigned int roe0;
 231                 unsigned int tue1;
 232                 unsigned int tue0;
 233                 unsigned int tfs;
 234                 unsigned int rfs;
 235                 unsigned int tls;
 236                 unsigned int rls;
 237                 unsigned int rff1;
 238                 unsigned int rff0;
 239                 unsigned int tfe1;
 240                 unsigned int tfe0;
 241         } stats;
 242 };
 243
 244 void fsl_ssi_dbg_isr(struct fsl_ssi_dbg *ssi_dbg, u32 sisr);
 245
 246 int fsl_ssi_debugfs_create(struct fsl_ssi_dbg *ssi_dbg, struct device *dev);
 247
 248 void fsl_ssi_debugfs_remove(struct fsl_ssi_dbg *ssi_dbg);
 249
 250 #else
 251
 252 struct fsl_ssi_dbg {
 253 };
 254
 255 static inline void fsl_ssi_dbg_isr(struct fsl_ssi_dbg *stats, u32 sisr)
 256 {
 257 }
 258
 259 static inline int fsl_ssi_debugfs_create(struct fsl_ssi_dbg *ssi_dbg,
 260                 struct device *dev)
 261 {
 262         return 0;
 263 }
 264
 265 static inline void fsl_ssi_debugfs_remove(struct fsl_ssi_dbg *ssi_dbg)
 266 {
 267 }
 268 #endif  /* ! IS_ENABLED(CONFIG_DEBUG_FS) */
 269
 270 #endif