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_RFR_CLK_DIS        0x00000800
  43 #define CCSR_SSI_SCR_TFR_CLK_DIS        0x00000400
  44 #define CCSR_SSI_SCR_TCH_EN             0x00000100
  45 #define CCSR_SSI_SCR_SYS_CLK_EN         0x00000080
  46 #define CCSR_SSI_SCR_I2S_MODE_MASK      0x00000060
  47 #define CCSR_SSI_SCR_I2S_MODE_NORMAL    0x00000000
  48 #define CCSR_SSI_SCR_I2S_MODE_MASTER    0x00000020
  49 #define CCSR_SSI_SCR_I2S_MODE_SLAVE     0x00000040
  50 #define CCSR_SSI_SCR_SYN                0x00000010
  51 #define CCSR_SSI_SCR_NET                0x00000008
  52 #define CCSR_SSI_SCR_RE                 0x00000004
  53 #define CCSR_SSI_SCR_TE                 0x00000002
  54 #define CCSR_SSI_SCR_SSIEN              0x00000001
  55
  56 #define CCSR_SSI_SISR_RFRC              0x01000000
  57 #define CCSR_SSI_SISR_TFRC              0x00800000
  58 #define CCSR_SSI_SISR_CMDAU             0x00040000
  59 #define CCSR_SSI_SISR_CMDDU             0x00020000
  60 #define CCSR_SSI_SISR_RXT               0x00010000
  61 #define CCSR_SSI_SISR_RDR1              0x00008000
  62 #define CCSR_SSI_SISR_RDR0              0x00004000
  63 #define CCSR_SSI_SISR_TDE1              0x00002000
  64 #define CCSR_SSI_SISR_TDE0              0x00001000
  65 #define CCSR_SSI_SISR_ROE1              0x00000800
  66 #define CCSR_SSI_SISR_ROE0              0x00000400
  67 #define CCSR_SSI_SISR_TUE1              0x00000200
  68 #define CCSR_SSI_SISR_TUE0              0x00000100
  69 #define CCSR_SSI_SISR_TFS               0x00000080
  70 #define CCSR_SSI_SISR_RFS               0x00000040
  71 #define CCSR_SSI_SISR_TLS               0x00000020
  72 #define CCSR_SSI_SISR_RLS               0x00000010
  73 #define CCSR_SSI_SISR_RFF1              0x00000008
  74 #define CCSR_SSI_SISR_RFF0              0x00000004
  75 #define CCSR_SSI_SISR_TFE1              0x00000002
  76 #define CCSR_SSI_SISR_TFE0              0x00000001
  77
  78 #define CCSR_SSI_SIER_RFRC_EN           0x01000000
  79 #define CCSR_SSI_SIER_TFRC_EN           0x00800000
  80 #define CCSR_SSI_SIER_RDMAE             0x00400000
  81 #define CCSR_SSI_SIER_RIE               0x00200000
  82 #define CCSR_SSI_SIER_TDMAE             0x00100000
  83 #define CCSR_SSI_SIER_TIE               0x00080000
  84 #define CCSR_SSI_SIER_CMDAU_EN          0x00040000
  85 #define CCSR_SSI_SIER_CMDDU_EN          0x00020000
  86 #define CCSR_SSI_SIER_RXT_EN            0x00010000
  87 #define CCSR_SSI_SIER_RDR1_EN           0x00008000
  88 #define CCSR_SSI_SIER_RDR0_EN           0x00004000
  89 #define CCSR_SSI_SIER_TDE1_EN           0x00002000
  90 #define CCSR_SSI_SIER_TDE0_EN           0x00001000
  91 #define CCSR_SSI_SIER_ROE1_EN           0x00000800
  92 #define CCSR_SSI_SIER_ROE0_EN           0x00000400
  93 #define CCSR_SSI_SIER_TUE1_EN           0x00000200
  94 #define CCSR_SSI_SIER_TUE0_EN           0x00000100
  95 #define CCSR_SSI_SIER_TFS_EN            0x00000080
  96 #define CCSR_SSI_SIER_RFS_EN            0x00000040
  97 #define CCSR_SSI_SIER_TLS_EN            0x00000020
  98 #define CCSR_SSI_SIER_RLS_EN            0x00000010
  99 #define CCSR_SSI_SIER_RFF1_EN           0x00000008
 100 #define CCSR_SSI_SIER_RFF0_EN           0x00000004
 101 #define CCSR_SSI_SIER_TFE1_EN           0x00000002
 102 #define CCSR_SSI_SIER_TFE0_EN           0x00000001
 103
 104 #define CCSR_SSI_STCR_TXBIT0            0x00000200
 105 #define CCSR_SSI_STCR_TFEN1             0x00000100
 106 #define CCSR_SSI_STCR_TFEN0             0x00000080
 107 #define CCSR_SSI_STCR_TFDIR             0x00000040
 108 #define CCSR_SSI_STCR_TXDIR             0x00000020
 109 #define CCSR_SSI_STCR_TSHFD             0x00000010
 110 #define CCSR_SSI_STCR_TSCKP             0x00000008
 111 #define CCSR_SSI_STCR_TFSI              0x00000004
 112 #define CCSR_SSI_STCR_TFSL              0x00000002
 113 #define CCSR_SSI_STCR_TEFS              0x00000001
 114
 115 #define CCSR_SSI_SRCR_RXEXT             0x00000400
 116 #define CCSR_SSI_SRCR_RXBIT0            0x00000200
 117 #define CCSR_SSI_SRCR_RFEN1             0x00000100
 118 #define CCSR_SSI_SRCR_RFEN0             0x00000080
 119 #define CCSR_SSI_SRCR_RFDIR             0x00000040
 120 #define CCSR_SSI_SRCR_RXDIR             0x00000020
 121 #define CCSR_SSI_SRCR_RSHFD             0x00000010
 122 #define CCSR_SSI_SRCR_RSCKP             0x00000008
 123 #define CCSR_SSI_SRCR_RFSI              0x00000004
 124 #define CCSR_SSI_SRCR_RFSL              0x00000002
 125 #define CCSR_SSI_SRCR_REFS              0x00000001
 126
 127 /* STCCR and SRCCR */
 128 #define CCSR_SSI_SxCCR_DIV2             0x00040000
 129 #define CCSR_SSI_SxCCR_PSR              0x00020000
 130 #define CCSR_SSI_SxCCR_WL_SHIFT         13
 131 #define CCSR_SSI_SxCCR_WL_MASK          0x0001E000
 132 #define CCSR_SSI_SxCCR_WL(x) \
 133         (((((x) / 2) - 1) << CCSR_SSI_SxCCR_WL_SHIFT) & CCSR_SSI_SxCCR_WL_MASK)
 134 #define CCSR_SSI_SxCCR_DC_SHIFT         8
 135 #define CCSR_SSI_SxCCR_DC_MASK          0x00001F00
 136 #define CCSR_SSI_SxCCR_DC(x) \
 137         ((((x) - 1) << CCSR_SSI_SxCCR_DC_SHIFT) & CCSR_SSI_SxCCR_DC_MASK)
 138 #define CCSR_SSI_SxCCR_PM_SHIFT         0
 139 #define CCSR_SSI_SxCCR_PM_MASK          0x000000FF
 140 #define CCSR_SSI_SxCCR_PM(x) \
 141         ((((x) - 1) << CCSR_SSI_SxCCR_PM_SHIFT) & CCSR_SSI_SxCCR_PM_MASK)
 142
 143 /*
 144  * The xFCNT bits are read-only, and the xFWM bits are read/write.  Use the
 145  * CCSR_SSI_SFCSR_xFCNTy() macros to read the FIFO counters, and use the
 146  * CCSR_SSI_SFCSR_xFWMy() macros to set the watermarks.
 147  */
 148 #define CCSR_SSI_SFCSR_RFCNT1_SHIFT     28
 149 #define CCSR_SSI_SFCSR_RFCNT1_MASK      0xF0000000
 150 #define CCSR_SSI_SFCSR_RFCNT1(x) \
 151         (((x) & CCSR_SSI_SFCSR_RFCNT1_MASK) >> CCSR_SSI_SFCSR_RFCNT1_SHIFT)
 152 #define CCSR_SSI_SFCSR_TFCNT1_SHIFT     24
 153 #define CCSR_SSI_SFCSR_TFCNT1_MASK      0x0F000000
 154 #define CCSR_SSI_SFCSR_TFCNT1(x) \
 155         (((x) & CCSR_SSI_SFCSR_TFCNT1_MASK) >> CCSR_SSI_SFCSR_TFCNT1_SHIFT)
 156 #define CCSR_SSI_SFCSR_RFWM1_SHIFT      20
 157 #define CCSR_SSI_SFCSR_RFWM1_MASK       0x00F00000
 158 #define CCSR_SSI_SFCSR_RFWM1(x) \
 159         (((x) << CCSR_SSI_SFCSR_RFWM1_SHIFT) & CCSR_SSI_SFCSR_RFWM1_MASK)
 160 #define CCSR_SSI_SFCSR_TFWM1_SHIFT      16
 161 #define CCSR_SSI_SFCSR_TFWM1_MASK       0x000F0000
 162 #define CCSR_SSI_SFCSR_TFWM1(x) \
 163         (((x) << CCSR_SSI_SFCSR_TFWM1_SHIFT) & CCSR_SSI_SFCSR_TFWM1_MASK)
 164 #define CCSR_SSI_SFCSR_RFCNT0_SHIFT     12
 165 #define CCSR_SSI_SFCSR_RFCNT0_MASK      0x0000F000
 166 #define CCSR_SSI_SFCSR_RFCNT0(x) \
 167         (((x) & CCSR_SSI_SFCSR_RFCNT0_MASK) >> CCSR_SSI_SFCSR_RFCNT0_SHIFT)
 168 #define CCSR_SSI_SFCSR_TFCNT0_SHIFT     8
 169 #define CCSR_SSI_SFCSR_TFCNT0_MASK      0x00000F00
 170 #define CCSR_SSI_SFCSR_TFCNT0(x) \
 171         (((x) & CCSR_SSI_SFCSR_TFCNT0_MASK) >> CCSR_SSI_SFCSR_TFCNT0_SHIFT)
 172 #define CCSR_SSI_SFCSR_RFWM0_SHIFT      4
 173 #define CCSR_SSI_SFCSR_RFWM0_MASK       0x000000F0
 174 #define CCSR_SSI_SFCSR_RFWM0(x) \
 175         (((x) << CCSR_SSI_SFCSR_RFWM0_SHIFT) & CCSR_SSI_SFCSR_RFWM0_MASK)
 176 #define CCSR_SSI_SFCSR_TFWM0_SHIFT      0
 177 #define CCSR_SSI_SFCSR_TFWM0_MASK       0x0000000F
 178 #define CCSR_SSI_SFCSR_TFWM0(x) \
 179         (((x) << CCSR_SSI_SFCSR_TFWM0_SHIFT) & CCSR_SSI_SFCSR_TFWM0_MASK)
 180
 181 #define CCSR_SSI_STR_TEST               0x00008000
 182 #define CCSR_SSI_STR_RCK2TCK            0x00004000
 183 #define CCSR_SSI_STR_RFS2TFS            0x00002000
 184 #define CCSR_SSI_STR_RXSTATE(x) (((x) >> 8) & 0x1F)
 185 #define CCSR_SSI_STR_TXD2RXD            0x00000080
 186 #define CCSR_SSI_STR_TCK2RCK            0x00000040
 187 #define CCSR_SSI_STR_TFS2RFS            0x00000020
 188 #define CCSR_SSI_STR_TXSTATE(x) ((x) & 0x1F)
 189
 190 #define CCSR_SSI_SOR_CLKOFF             0x00000040
 191 #define CCSR_SSI_SOR_RX_CLR             0x00000020
 192 #define CCSR_SSI_SOR_TX_CLR             0x00000010
 193 #define CCSR_SSI_SOR_INIT               0x00000008
 194 #define CCSR_SSI_SOR_WAIT_SHIFT         1
 195 #define CCSR_SSI_SOR_WAIT_MASK          0x00000006
 196 #define CCSR_SSI_SOR_WAIT(x) (((x) & 3) << CCSR_SSI_SOR_WAIT_SHIFT)
 197 #define CCSR_SSI_SOR_SYNRST             0x00000001
 198
 199 /* Instantiation data for an SSI interface
 200  *
 201  * This structure contains all the information that the the SSI driver needs
 202  * to instantiate an SSI interface with ALSA.  The machine driver should
 203  * create this structure, fill it in, call fsl_ssi_create_dai(), and then
 204  * delete the structure.
 205  *
 206  * id: which SSI this is (0, 1, etc. )
 207  * ssi: pointer to the SSI's registers
 208  * ssi_phys: physical address of the SSI registers
 209  * irq: IRQ of this SSI
 210  * dev: struct device, used to create the sysfs statistics file
 211  * asynchronous: 0=synchronous mode, 1=asynchronous mode
 212 */
 213 struct fsl_ssi_info {
 214         unsigned int id;
 215         struct ccsr_ssi __iomem *ssi;
 216         dma_addr_t ssi_phys;
 217         unsigned int irq;
 218         struct device *dev;
 219         int asynchronous;
 220 };
 221
 222 struct snd_soc_dai *fsl_ssi_create_dai(struct fsl_ssi_info *ssi_info);
 223 void fsl_ssi_destroy_dai(struct snd_soc_dai *fsl_ssi_dai);
 224
 225 #endif
 226