LXR linux/arch/cris/include/uapi/asm/sync

   1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2/*
   3 * ioctl defines for synchronous serial port driver
   4 *
   5 * Copyright (c) 2001-2003 Axis Communications AB
   6 *
   7 * Author: Mikael Starvik
   8 *
   9 */
  10
  11#ifndef SYNC_SERIAL_H
  12#define SYNC_SERIAL_H
  13
  14#include <linux/ioctl.h>
  15
  16#define SSP_SPEED      _IOR('S', 0, unsigned int)
  17#define SSP_MODE       _IOR('S', 1, unsigned int)
  18#define SSP_FRAME_SYNC _IOR('S', 2, unsigned int)
  19#define SSP_IPOLARITY  _IOR('S', 3, unsigned int)
  20#define SSP_OPOLARITY  _IOR('S', 4, unsigned int)
  21#define SSP_SPI        _IOR('S', 5, unsigned int)
  22#define SSP_INBUFCHUNK _IOR('S', 6, unsigned int)
  23#define SSP_INPUT      _IOR('S', 7, unsigned int)
  24
  25/* Values for SSP_SPEED */
  26#define SSP150        0
  27#define SSP300        1
  28#define SSP600        2
  29#define SSP1200       3
  30#define SSP2400       4
  31#define SSP4800       5
  32#define SSP9600       6
  33#define SSP19200      7
  34#define SSP28800      8
  35#define SSP57600      9
  36#define SSP115200    10
  37#define SSP230400    11
  38#define SSP460800    12
  39#define SSP921600    13
  40#define SSP3125000   14
  41#define CODEC        15
  42#define CODEC_f32768 16
  43
  44#define FREQ_4MHz   0
  45#define FREQ_2MHz   1
  46#define FREQ_1MHz   2
  47#define FREQ_512kHz 3
  48#define FREQ_256kHz 4
  49#define FREQ_128kHz 5
  50#define FREQ_64kHz  6
  51#define FREQ_32kHz  7
  52/* FREQ_* with values where bit (value & 0x10) is set are */
  53/* used for CODEC_f32768 */
  54#define FREQ_4096kHz 16 /* CODEC_f32768 */
  55
  56/* Used by application to set CODEC divider, word rate and frame rate */
  57#define CODEC_VAL(freq, clk_per_sync, sync_per_frame) \
  58        ((CODEC + ((freq & 0x10) >> 4)) | (freq << 8) | \
  59                   (clk_per_sync << 16) | (sync_per_frame << 28))
  60
  61/* Used by driver to extract speed */
  62#define GET_SPEED(x) (x & 0xff)
  63#define GET_FREQ(x) ((x & 0xff00) >> 8)
  64#define GET_WORD_RATE(x) (((x & 0x0fff0000) >> 16) - 1)
  65#define GET_FRAME_RATE(x) (((x & 0xf0000000) >> 28) - 1)
  66
  67/* Values for SSP_MODE */
  68#define MASTER_OUTPUT 0
  69#define SLAVE_OUTPUT  1
  70#define MASTER_INPUT  2
  71#define SLAVE_INPUT   3
  72#define MASTER_BIDIR  4
  73#define SLAVE_BIDIR   5
  74
  75/* Values for SSP_FRAME_SYNC */
  76#define NORMAL_SYNC                1
  77#define EARLY_SYNC                 2
  78#define SECOND_WORD_SYNC     0x40000
  79#define LATE_SYNC            0x80000
  80
  81#define BIT_SYNC                   4
  82#define WORD_SYNC                  8
  83#define EXTENDED_SYNC           0x10
  84
  85#define SYNC_OFF                0x20
  86#define SYNC_ON                 0x40
  87#define WORD_SIZE_8             0x80
  88#define WORD_SIZE_12           0x100
  89#define WORD_SIZE_16           0x200
  90#define WORD_SIZE_24           0x400
  91#define WORD_SIZE_32           0x800
  92#define BIT_ORDER_LSB         0x1000
  93#define BIT_ORDER_MSB         0x2000
  94#define FLOW_CONTROL_ENABLE   0x4000
  95#define FLOW_CONTROL_DISABLE  0x8000
  96#define CLOCK_GATED          0x10000
  97#define CLOCK_NOT_GATED      0x20000
  98
  99/* Values for SSP_IPOLARITY and SSP_OPOLARITY */
 100#define CLOCK_NORMAL         1
 101#define CLOCK_INVERT         2
 102#define CLOCK_INEGEDGE       CLOCK_NORMAL
 103#define CLOCK_IPOSEDGE       CLOCK_INVERT
 104#define FRAME_NORMAL         4
 105#define FRAME_INVERT         8
 106#define STATUS_NORMAL      0x10
 107#define STATUS_INVERT      0x20
 108
 109/* Values for SSP_SPI */
 110#define SPI_MASTER           0
 111#define SPI_SLAVE            1
 112
 113/* Values for SSP_INBUFCHUNK */
 114/* plain integer with the size of DMA chunks */
 115
 116/* To ensure that the timestamps are aligned with the data being read
 117 * the read length MUST be a multiple of the length of the DMA buffers.
 118 *
 119 * Use a multiple of SSP_INPUT_CHUNK_SIZE defined below.
 120 */
 121#define SSP_INPUT_CHUNK_SIZE  256
 122
 123/* Request struct to pass through the ioctl interface to read
 124 * data with timestamps.
 125 */
 126struct ssp_request {
 127        char __user *buf;       /* Where to put the data. */
 128        size_t len;             /* Size of buf. MUST be a multiple of */
 129                                /* SSP_INPUT_CHUNK_SIZE! */
 130        struct timespec ts;     /* The time the data was sampled. */
 131};
 132
 133#endif
 134