arch/cris/include/asm/sync_serial.h

   1 /*
   2  * ioctl defines for synchronous serial port driver
   3  *
   4  * Copyright (c) 2001-2003 Axis Communications AB
   5  *
   6  * Author: Mikael Starvik
   7  *
   8  */
   9
  10 #ifndef SYNC_SERIAL_H
  11 #define SYNC_SERIAL_H
  12
  13 #include <linux/ioctl.h>
  14
  15 #define SSP_SPEED      _IOR('S', 0, unsigned int)
  16 #define SSP_MODE       _IOR('S', 1, unsigned int)
  17 #define SSP_FRAME_SYNC _IOR('S', 2, unsigned int)
  18 #define SSP_IPOLARITY  _IOR('S', 3, unsigned int)
  19 #define SSP_OPOLARITY  _IOR('S', 4, unsigned int)
  20 #define SSP_SPI        _IOR('S', 5, unsigned int)
  21 #define SSP_INBUFCHUNK _IOR('S', 6, unsigned int)
  22 #define SSP_INPUT      _IOR('S', 7, unsigned int)
  23
  24 /* Values for SSP_SPEED */
  25 #define SSP150        0
  26 #define SSP300        1
  27 #define SSP600        2
  28 #define SSP1200       3
  29 #define SSP2400       4
  30 #define SSP4800       5
  31 #define SSP9600       6
  32 #define SSP19200      7
  33 #define SSP28800      8
  34 #define SSP57600      9
  35 #define SSP115200    10
  36 #define SSP230400    11
  37 #define SSP460800    12
  38 #define SSP921600    13
  39 #define SSP3125000   14
  40 #define CODEC        15
  41 #define CODEC_f32768 16
  42
  43 #define FREQ_4MHz   0
  44 #define FREQ_2MHz   1
  45 #define FREQ_1MHz   2
  46 #define FREQ_512kHz 3
  47 #define FREQ_256kHz 4
  48 #define FREQ_128kHz 5
  49 #define FREQ_64kHz  6
  50 #define FREQ_32kHz  7
  51 /* FREQ_* with values where bit (value & 0x10) is set are */
  52 /* used for CODEC_f32768 */
  53 #define FREQ_4096kHz 16 /* CODEC_f32768 */
  54
  55 /* Used by application to set CODEC divider, word rate and frame rate */
  56 #define CODEC_VAL(freq, clk_per_sync, sync_per_frame) \
  57         ((CODEC + ((freq & 0x10) >> 4)) | (freq << 8) | \
  58                    (clk_per_sync << 16) | (sync_per_frame << 28))
  59
  60 /* Used by driver to extract speed */
  61 #define GET_SPEED(x) (x & 0xff)
  62 #define GET_FREQ(x) ((x & 0xff00) >> 8)
  63 #define GET_WORD_RATE(x) (((x & 0x0fff0000) >> 16) - 1)
  64 #define GET_FRAME_RATE(x) (((x & 0xf0000000) >> 28) - 1)
  65
  66 /* Values for SSP_MODE */
  67 #define MASTER_OUTPUT 0
  68 #define SLAVE_OUTPUT  1
  69 #define MASTER_INPUT  2
  70 #define SLAVE_INPUT   3
  71 #define MASTER_BIDIR  4
  72 #define SLAVE_BIDIR   5
  73
  74 /* Values for SSP_FRAME_SYNC */
  75 #define NORMAL_SYNC                1
  76 #define EARLY_SYNC                 2
  77 #define SECOND_WORD_SYNC     0x40000
  78 #define LATE_SYNC            0x80000
  79
  80 #define BIT_SYNC                   4
  81 #define WORD_SYNC                  8
  82 #define EXTENDED_SYNC           0x10
  83
  84 #define SYNC_OFF                0x20
  85 #define SYNC_ON                 0x40
  86 #define WORD_SIZE_8             0x80
  87 #define WORD_SIZE_12           0x100
  88 #define WORD_SIZE_16           0x200
  89 #define WORD_SIZE_24           0x400
  90 #define WORD_SIZE_32           0x800
  91 #define BIT_ORDER_LSB         0x1000
  92 #define BIT_ORDER_MSB         0x2000
  93 #define FLOW_CONTROL_ENABLE   0x4000
  94 #define FLOW_CONTROL_DISABLE  0x8000
  95 #define CLOCK_GATED          0x10000
  96 #define CLOCK_NOT_GATED      0x20000
  97
  98 /* Values for SSP_IPOLARITY and SSP_OPOLARITY */
  99 #define CLOCK_NORMAL         1
 100 #define CLOCK_INVERT         2
 101 #define CLOCK_INEGEDGE       CLOCK_NORMAL
 102 #define CLOCK_IPOSEDGE       CLOCK_INVERT
 103 #define FRAME_NORMAL         4
 104 #define FRAME_INVERT         8
 105 #define STATUS_NORMAL      0x10
 106 #define STATUS_INVERT      0x20
 107
 108 /* Values for SSP_SPI */
 109 #define SPI_MASTER           0
 110 #define SPI_SLAVE            1
 111
 112 /* Values for SSP_INBUFCHUNK */
 113 /* plain integer with the size of DMA chunks */
 114
 115 /* To ensure that the timestamps are aligned with the data being read
 116  * the read length MUST be a multiple of the length of the DMA buffers.
 117  *
 118  * Use a multiple of SSP_INPUT_CHUNK_SIZE defined below.
 119  */
 120 #define SSP_INPUT_CHUNK_SIZE  256
 121
 122 /* Request struct to pass through the ioctl interface to read
 123  * data with timestamps.
 124  */
 125 struct ssp_request {
 126         char __user *buf;       /* Where to put the data. */
 127         size_t len;             /* Size of buf. MUST be a multiple of */
 128                                 /* SSP_INPUT_CHUNK_SIZE! */
 129         struct timespec ts;     /* The time the data was sampled. */
 130 };
 131
 132 #endif