sync_serial.h
上传用户:jlfgdled
上传日期:2013-04-10
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文件大小:3k
- /*
- * ioctl defines for synchrnous serial port driver
- *
- * Copyright (c) 2001 Axis Communications AB
- *
- * Author: Mikael Starvik
- *
- */
- #ifndef SYNC_SERIAL_H
- #define SYNC_SERIAL_H
- #include <linux/ioctl.h>
- #define SSP_SPEED _IOR('S', 0, unsigned int)
- #define SSP_MODE _IOR('S', 1, unsigned int)
- #define SSP_FRAME_SYNC _IOR('S', 2, unsigned int)
- #define SSP_IPOLARITY _IOR('S', 3, unsigned int)
- #define SSP_OPOLARITY _IOR('S', 4, unsigned int)
- #define SSP_SPI _IOR('S', 5, unsigned int)
- /* Values for SSP_SPEED */
- #define SSP150 0
- #define SSP300 1
- #define SSP600 2
- #define SSP1200 3
- #define SSP2400 4
- #define SSP4800 5
- #define SSP9600 6
- #define SSP19200 7
- #define SSP28800 8
- #define SSP57600 9
- #define SSP115200 10
- #define SSP230400 11
- #define SSP460800 12
- #define SSP921600 13
- #define SSP3125000 14
- #define CODEC 15
- #define FREQ_4MHz 0
- #define FREQ_2MHz 1
- #define FREQ_1MHz 2
- #define FREQ_512kHz 3
- #define FREQ_256kHz 4
- #define FREQ_128kHz 5
- #define FREQ_64kHz 6
- #define FREQ_32kHz 7
- /* Used by application to set CODEC divider, word rate and frame rate */
- #define CODEC_VAL(freq, word, frame) (CODEC | (freq << 8) | (word << 16) | (frame << 28))
- /* Used by driver to extract speed */
- #define GET_SPEED(x) (x & 0xff)
- #define GET_FREQ(x) ((x & 0xff00) >> 8)
- #define GET_WORD_RATE(x) (((x & 0x0fff0000) >> 16) - 1)
- #define GET_FRAME_RATE(x) (((x & 0xf0000000) >> 28) - 1)
- /* Values for SSP_MODE */
- #define MASTER_OUTPUT 0
- #define SLAVE_OUTPUT 1
- #define MASTER_INPUT 2
- #define SLAVE_INPUT 3
- #define MASTER_BIDIR 4
- #define SLAVE_BIDIR 5
- /* Values for SSP_FRAME_SYNC */
- #define NORMAL_SYNC 1
- #define EARLY_SYNC 2
- #define BIT_SYNC 4
- #define WORD_SYNC 8
- #define EXTENDED_SYNC 0x10
- #define SYNC_OFF 0x20
- #define SYNC_ON 0x40
- #define WORD_SIZE_8 0x80
- #define WORD_SIZE_12 0x100
- #define WORD_SIZE_16 0x200
- #define WORD_SIZE_24 0x300
- #define WORD_SIZE_32 0x800
- #define BIT_ORDER_LSB 0x1000
- #define BIT_ORDER_MSB 0x2000
- #define FLOW_CONTROL_ENABLE 0x4000
- #define FLOW_CONTROL_DISABLE 0x8000
- #define CLOCK_GATED 0x10000
- #define CLOCK_NOT_GATED 0x20000
- /* Values for SSP_IPOLARITY and SSP_OPOLARITY */
- #define CLOCK_NORMAL 1
- #define CLOCK_INVERT 2
- #define FRAME_NORMAL 4
- #define FRAME_INVERT 8
- #define STATUS_NORMAL 0x10
- #define STATUS_INVERT 0x20
- /* Values for SSP_SPI */
- #define SPI_MASTER 0
- #define SPI_SLAVE 1
- #endif