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authorSonic Zhang <sonic.zhang@analog.com>2012-05-15 15:54:26 +0800
committerBob Liu <lliubbo@gmail.com>2012-05-21 14:55:01 +0800
commit1e92bf6d80b5a0a137455c96bf6cdd9c1a5b531e (patch)
tree9f41d644a41bc90f559f39c60f3d43795a5588bf
parentcf93feb3a0dee97c7896016a352a3226139fbcf4 (diff)
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>
-rw-r--r--arch/blackfin/include/asm/bfin_twi.h44
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 74d10237f70..72092108df1 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 */