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 #define SECOND_WORD_SYNC 0x40000 71 72 #define BIT_SYNC 4 73 #define WORD_SYNC 8 74 #define EXTENDED_SYNC 0x10 75 76 #define SYNC_OFF 0x20 77 #define SYNC_ON 0x40 78 #define WORD_SIZE_8 0x80 79 #define WORD_SIZE_12 0x100 80 #define WORD_SIZE_16 0x200 81 #define WORD_SIZE_24 0x400 82 #define WORD_SIZE_32 0x800 83 #define BIT_ORDER_LSB 0x1000 84 #define BIT_ORDER_MSB 0x2000 85 #define FLOW_CONTROL_ENABLE 0x4000 86 #define FLOW_CONTROL_DISABLE 0x8000 87 #define CLOCK_GATED 0x10000 88 #define CLOCK_NOT_GATED 0x20000 89 90 /* Values for SSP_IPOLARITY and SSP_OPOLARITY */ 91 #define CLOCK_NORMAL 1 92 #define CLOCK_INVERT 2 93 #define CLOCK_INEGEDGE CLOCK_NORMAL 94 #define CLOCK_IPOSEDGE CLOCK_INVERT 95 #define FRAME_NORMAL 4 96 #define FRAME_INVERT 8 97 #define STATUS_NORMAL 0x10 98 #define STATUS_INVERT 0x20 99 100 /* Values for SSP_SPI */ 101 #define SPI_MASTER 0 102 #define SPI_SLAVE 1 103 104 /* Values for SSP_INBUFCHUNK */ 105 /* plain integer with the size of DMA chunks */ 106 107 #endif 108