diff options
Diffstat (limited to 'arch/blackfin/include/uapi/asm/bfin_sport.h')
-rw-r--r-- | arch/blackfin/include/uapi/asm/bfin_sport.h | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/arch/blackfin/include/uapi/asm/bfin_sport.h b/arch/blackfin/include/uapi/asm/bfin_sport.h new file mode 100644 index 000000000000..c086de87ee61 --- /dev/null +++ b/arch/blackfin/include/uapi/asm/bfin_sport.h @@ -0,0 +1,136 @@ +/* + * bfin_sport.h - interface to Blackfin SPORTs + * + * Copyright 2004-2009 Analog Devices Inc. + * + * Licensed under the GPL-2 or later. + */ + +#ifndef _UAPI__BFIN_SPORT_H__ +#define _UAPI__BFIN_SPORT_H__ + +/* Sport mode: it can be set to TDM, i2s or others */ +#define NORM_MODE 0x0 +#define TDM_MODE 0x1 +#define I2S_MODE 0x2 +#define NDSO_MODE 0x3 + +/* Data format, normal, a-law or u-law */ +#define NORM_FORMAT 0x0 +#define ALAW_FORMAT 0x2 +#define ULAW_FORMAT 0x3 + +/* Function driver which use sport must initialize the structure */ +struct sport_config { + /* TDM (multichannels), I2S or other mode */ + unsigned int mode:3; + unsigned int polled; /* use poll instead of irq when set */ + + /* if TDM mode is selected, channels must be set */ + int channels; /* Must be in 8 units */ + unsigned int frame_delay:4; /* Delay between frame sync pulse and first bit */ + + /* I2S mode */ + unsigned int right_first:1; /* Right stereo channel first */ + + /* In mormal mode, the following item need to be set */ + unsigned int lsb_first:1; /* order of transmit or receive data */ + unsigned int fsync:1; /* Frame sync required */ + unsigned int data_indep:1; /* data independent frame sync generated */ + unsigned int act_low:1; /* Active low TFS */ + unsigned int late_fsync:1; /* Late frame sync */ + unsigned int tckfe:1; + unsigned int sec_en:1; /* Secondary side enabled */ + + /* Choose clock source */ + unsigned int int_clk:1; /* Internal or external clock */ + + /* If external clock is used, the following fields are ignored */ + int serial_clk; + int fsync_clk; + + unsigned int data_format:2; /* Normal, u-law or a-law */ + + int word_len; /* How length of the word in bits, 3-32 bits */ + int dma_enabled; +}; + +/* Userspace interface */ +#define SPORT_IOC_MAGIC 'P' +#define SPORT_IOC_CONFIG _IOWR('P', 0x01, struct sport_config) +#define SPORT_IOC_GET_SYSTEMCLOCK _IOR('P', 0x02, unsigned long) +#define SPORT_IOC_SET_BAUDRATE _IOW('P', 0x03, unsigned long) + + +/* SPORT_TCR1 Masks */ +#define TSPEN 0x0001 /* TX enable */ +#define ITCLK 0x0002 /* Internal TX Clock Select */ +#define TDTYPE 0x000C /* TX Data Formatting Select */ +#define DTYPE_NORM 0x0000 /* Data Format Normal */ +#define DTYPE_ULAW 0x0008 /* Compand Using u-Law */ +#define DTYPE_ALAW 0x000C /* Compand Using A-Law */ +#define TLSBIT 0x0010 /* TX Bit Order */ +#define ITFS 0x0200 /* Internal TX Frame Sync Select */ +#define TFSR 0x0400 /* TX Frame Sync Required Select */ +#define DITFS 0x0800 /* Data Independent TX Frame Sync Select */ +#define LTFS 0x1000 /* Low TX Frame Sync Select */ +#define LATFS 0x2000 /* Late TX Frame Sync Select */ +#define TCKFE 0x4000 /* TX Clock Falling Edge Select */ + +/* SPORT_TCR2 Masks */ +#define SLEN 0x001F /* SPORT TX Word Length (2 - 31) */ +#define DP_SLEN(x) BFIN_DEPOSIT(SLEN, x) +#define EX_SLEN(x) BFIN_EXTRACT(SLEN, x) +#define TXSE 0x0100 /* TX Secondary Enable */ +#define TSFSE 0x0200 /* TX Stereo Frame Sync Enable */ +#define TRFST 0x0400 /* TX Right-First Data Order */ + +/* SPORT_RCR1 Masks */ +#define RSPEN 0x0001 /* RX enable */ +#define IRCLK 0x0002 /* Internal RX Clock Select */ +#define RDTYPE 0x000C /* RX Data Formatting Select */ +/* DTYPE_* defined above */ +#define RLSBIT 0x0010 /* RX Bit Order */ +#define IRFS 0x0200 /* Internal RX Frame Sync Select */ +#define RFSR 0x0400 /* RX Frame Sync Required Select */ +#define LRFS 0x1000 /* Low RX Frame Sync Select */ +#define LARFS 0x2000 /* Late RX Frame Sync Select */ +#define RCKFE 0x4000 /* RX Clock Falling Edge Select */ + +/* SPORT_RCR2 Masks */ +/* SLEN defined above */ +#define RXSE 0x0100 /* RX Secondary Enable */ +#define RSFSE 0x0200 /* RX Stereo Frame Sync Enable */ +#define RRFST 0x0400 /* Right-First Data Order */ + +/* SPORT_STAT Masks */ +#define RXNE 0x0001 /* RX FIFO Not Empty Status */ +#define RUVF 0x0002 /* RX Underflow Status */ +#define ROVF 0x0004 /* RX Overflow Status */ +#define TXF 0x0008 /* TX FIFO Full Status */ +#define TUVF 0x0010 /* TX Underflow Status */ +#define TOVF 0x0020 /* TX Overflow Status */ +#define TXHRE 0x0040 /* TX Hold Register Empty */ + +/* SPORT_MCMC1 Masks */ +#define SP_WOFF 0x03FF /* Multichannel Window Offset Field */ +#define DP_SP_WOFF(x) BFIN_DEPOSIT(SP_WOFF, x) +#define EX_SP_WOFF(x) BFIN_EXTRACT(SP_WOFF, x) +#define SP_WSIZE 0xF000 /* Multichannel Window Size Field */ +#define DP_SP_WSIZE(x) BFIN_DEPOSIT(SP_WSIZE, x) +#define EX_SP_WSIZE(x) BFIN_EXTRACT(SP_WSIZE, x) + +/* SPORT_MCMC2 Masks */ +#define MCCRM 0x0003 /* Multichannel Clock Recovery Mode */ +#define REC_BYPASS 0x0000 /* Bypass Mode (No Clock Recovery) */ +#define REC_2FROM4 0x0002 /* Recover 2 MHz Clock from 4 MHz Clock */ +#define REC_8FROM16 0x0003 /* Recover 8 MHz Clock from 16 MHz Clock */ +#define MCDTXPE 0x0004 /* Multichannel DMA Transmit Packing */ +#define MCDRXPE 0x0008 /* Multichannel DMA Receive Packing */ +#define MCMEN 0x0010 /* Multichannel Frame Mode Enable */ +#define FSDR 0x0080 /* Multichannel Frame Sync to Data Relationship */ +#define MFD 0xF000 /* Multichannel Frame Delay */ +#define DP_MFD(x) BFIN_DEPOSIT(MFD, x) +#define EX_MFD(x) BFIN_EXTRACT(MFD, x) + +#endif /* _UAPI__BFIN_SPORT_H__ */ |