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  | 
