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| author |   Sonic Zhang <sonic.zhang@analog.com> | 2012-05-15 15:54:26 +0800 |
|---|---|---|
| committer |   Bob Liu <lliubbo@gmail.com> | 2012-05-21 14:55:01 +0800 |
| commit | 1e92bf6d80b5a0a137455c96bf6cdd9c1a5b531e (patch) | |
| tree | 9f41d644a41bc90f559f39c60f3d43795a5588bf /arch/blackfin | |
| parent | blackfin: twi: Move TWI peripheral pin request array to platform data (diff) | |
| download | linux-dev-1e92bf6d80b5a0a137455c96bf6cdd9c1a5b531e.tar.xz linux-dev-1e92bf6d80b5a0a137455c96bf6cdd9c1a5b531e.zip | |
blackfin: twi: Move TWI MMR access macro to twi head file
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>
Diffstat (limited to 'arch/blackfin')
| -rw-r--r-- | arch/blackfin/include/asm/bfin_twi.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/arch/blackfin/include/asm/bfin_twi.h b/arch/blackfin/include/asm/bfin_twi.h index 74d10237f706..72092108df1c 100644 --- a/arch/blackfin/include/asm/bfin_twi.h +++ b/arch/blackfin/include/asm/bfin_twi.h @@ -42,6 +42,50 @@ struct bfin_twi_regs { #undef __BFP +struct bfin_twi_iface { + int irq; + spinlock_t lock; + char read_write; + u8 command; + u8 *transPtr; + int readNum; + int writeNum; + int cur_mode; + int manual_stop; + int result; + struct i2c_adapter adap; + struct completion complete; + struct i2c_msg *pmsg; + int msg_num; + int cur_msg; + u16 saved_clkdiv; + u16 saved_control; + struct bfin_twi_regs *regs_base; +}; + +#define DEFINE_TWI_REG(reg_name, reg) \ +static inline u16 read_##reg_name(struct bfin_twi_iface *iface) \ + { return iface->regs_base->reg; } \ +static inline void write_##reg_name(struct bfin_twi_iface *iface, u16 v) \ + { iface->regs_base->reg = v; } + +DEFINE_TWI_REG(CLKDIV, clkdiv) +DEFINE_TWI_REG(CONTROL, control) +DEFINE_TWI_REG(SLAVE_CTL, slave_ctl) +DEFINE_TWI_REG(SLAVE_STAT, slave_stat) +DEFINE_TWI_REG(SLAVE_ADDR, slave_addr) +DEFINE_TWI_REG(MASTER_CTL, master_ctl) +DEFINE_TWI_REG(MASTER_STAT, master_stat) +DEFINE_TWI_REG(MASTER_ADDR, master_addr) +DEFINE_TWI_REG(INT_STAT, int_stat) +DEFINE_TWI_REG(INT_MASK, int_mask) +DEFINE_TWI_REG(FIFO_CTL, fifo_ctl) +DEFINE_TWI_REG(FIFO_STAT, fifo_stat) +DEFINE_TWI_REG(XMT_DATA8, xmt_data8) +DEFINE_TWI_REG(XMT_DATA16, xmt_data16) +DEFINE_TWI_REG(RCV_DATA8, rcv_data8) +DEFINE_TWI_REG(RCV_DATA16, rcv_data16) + /* ******************** TWO-WIRE INTERFACE (TWI) MASKS ***********************/ /* TWI_CLKDIV Macros (Use: *pTWI_CLKDIV = CLKLOW(x)|CLKHI(y); ) */ #define CLKLOW(x) ((x) & 0xFF) /* Periods Clock Is Held Low */ |