diff options
Diffstat (limited to 'arch/cris/include/uapi/asm/sync_serial.h')
| -rw-r--r-- | arch/cris/include/uapi/asm/sync_serial.h | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/arch/cris/include/uapi/asm/sync_serial.h b/arch/cris/include/uapi/asm/sync_serial.h new file mode 100644 index 00000000000..7f827fea30e --- /dev/null +++ b/arch/cris/include/uapi/asm/sync_serial.h @@ -0,0 +1,132 @@ +/* + * ioctl defines for synchronous serial port driver + * + * Copyright (c) 2001-2003 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) +#define SSP_INBUFCHUNK _IOR('S', 6, unsigned int) +#define SSP_INPUT _IOR('S', 7, 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 CODEC_f32768 16 + +#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 +/* FREQ_* with values where bit (value & 0x10) is set are */ +/* used for CODEC_f32768 */ +#define FREQ_4096kHz 16 /* CODEC_f32768 */ + +/* Used by application to set CODEC divider, word rate and frame rate */ +#define CODEC_VAL(freq, clk_per_sync, sync_per_frame) \ + ((CODEC + ((freq & 0x10) >> 4)) | (freq << 8) | \ + (clk_per_sync << 16) | (sync_per_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 SECOND_WORD_SYNC 0x40000 +#define LATE_SYNC 0x80000 + +#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 0x400 +#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 CLOCK_INEGEDGE CLOCK_NORMAL +#define CLOCK_IPOSEDGE CLOCK_INVERT +#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 + +/* Values for SSP_INBUFCHUNK */ +/* plain integer with the size of DMA chunks */ + +/* To ensure that the timestamps are aligned with the data being read + * the read length MUST be a multiple of the length of the DMA buffers. + * + * Use a multiple of SSP_INPUT_CHUNK_SIZE defined below. + */ +#define SSP_INPUT_CHUNK_SIZE 256 + +/* Request struct to pass through the ioctl interface to read + * data with timestamps. + */ +struct ssp_request { + char __user *buf; /* Where to put the data. */ + size_t len; /* Size of buf. MUST be a multiple of */ + /* SSP_INPUT_CHUNK_SIZE! */ + struct timespec ts; /* The time the data was sampled. */ +}; + +#endif |