diff options
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 74d1023..7209210 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 */ |