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 23/* Values for SSP_SPEED */ 24#define SSP150 0 25#define SSP300 1 26#define SSP600 2 27#define SSP1200 3 28#define SSP2400 4 29#define SSP4800 5 30#define SSP9600 6 31#define SSP19200 7 32#define SSP28800 8 33#define SSP57600 9 34#define SSP115200 10 35#define SSP230400 11 36#define SSP460800 12 37#define SSP921600 13 38#define SSP3125000 14 39#define CODEC 15 40 41#define FREQ_4MHz 0 42#define FREQ_2MHz 1 43#define FREQ_1MHz 2 44#define FREQ_512kHz 3 45#define FREQ_256kHz 4 46#define FREQ_128kHz 5 47#define FREQ_64kHz 6 48#define FREQ_32kHz 7 49 50/* Used by application to set CODEC divider, word rate and frame rate */ 51#define CODEC_VAL(freq, clk_per_sync, sync_per_frame) (CODEC | (freq << 8) | (clk_per_sync << 16) | (sync_per_frame << 28)) 52 53/* Used by driver to extract speed */ 54#define GET_SPEED(x) (x & 0xff) 55#define GET_FREQ(x) ((x & 0xff00) >> 8) 56#define GET_WORD_RATE(x) (((x & 0x0fff0000) >> 16) - 1) 57#define GET_FRAME_RATE(x) (((x & 0xf0000000) >> 28) - 1) 58 59/* Values for SSP_MODE */ 60#define MASTER_OUTPUT 0 61#define SLAVE_OUTPUT 1 62#define MASTER_INPUT 2 63#define SLAVE_INPUT 3 64#define MASTER_BIDIR 4 65#define SLAVE_BIDIR 5 66 67/* Values for SSP_FRAME_SYNC */ 68#define NORMAL_SYNC 1 69#define EARLY_SYNC 2 70 71#define BIT_SYNC 4 72#define WORD_SYNC 8 73#define EXTENDED_SYNC 0x10 74 75#define SYNC_OFF 0x20 76#define SYNC_ON 0x40 77#define WORD_SIZE_8 0x80 78#define WORD_SIZE_12 0x100 79#define WORD_SIZE_16 0x200 80#define WORD_SIZE_24 0x400 81#define WORD_SIZE_32 0x800 82#define BIT_ORDER_LSB 0x1000 83#define BIT_ORDER_MSB 0x2000 84#define FLOW_CONTROL_ENABLE 0x4000 85#define FLOW_CONTROL_DISABLE 0x8000 86#define CLOCK_GATED 0x10000 87#define CLOCK_NOT_GATED 0x20000 88 89/* Values for SSP_IPOLARITY and SSP_OPOLARITY */ 90#define CLOCK_NORMAL 1 91#define CLOCK_INVERT 2 92#define CLOCK_INEGEDGE CLOCK_NORMAL 93#define CLOCK_IPOSEDGE CLOCK_INVERT 94#define FRAME_NORMAL 4 95#define FRAME_INVERT 8 96#define STATUS_NORMAL 0x10 97#define STATUS_INVERT 0x20 98 99/* Values for SSP_SPI */ 100#define SPI_MASTER 0 101#define SPI_SLAVE 1 102 103/* Values for SSP_INBUFCHUNK */ 104/* plain integer with the size of DMA chunks */ 105 106#endif 107