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Diffstat (limited to 'drivers/i2c/busses/i2c-keywest.h')
-rw-r--r--drivers/i2c/busses/i2c-keywest.h108
1 files changed, 0 insertions, 108 deletions
diff --git a/drivers/i2c/busses/i2c-keywest.h b/drivers/i2c/busses/i2c-keywest.h
deleted file mode 100644
index c5022e1ca6f..00000000000
--- a/drivers/i2c/busses/i2c-keywest.h
+++ /dev/null
@@ -1,108 +0,0 @@
-#ifndef __I2C_KEYWEST_H__
-#define __I2C_KEYWEST_H__
-
-/* The Tumbler audio equalizer can be really slow sometimes */
-#define POLL_TIMEOUT (2*HZ)
-
-/* Register indices */
-typedef enum {
- reg_mode = 0,
- reg_control,
- reg_status,
- reg_isr,
- reg_ier,
- reg_addr,
- reg_subaddr,
- reg_data
-} reg_t;
-
-
-/* Mode register */
-#define KW_I2C_MODE_100KHZ 0x00
-#define KW_I2C_MODE_50KHZ 0x01
-#define KW_I2C_MODE_25KHZ 0x02
-#define KW_I2C_MODE_DUMB 0x00
-#define KW_I2C_MODE_STANDARD 0x04
-#define KW_I2C_MODE_STANDARDSUB 0x08
-#define KW_I2C_MODE_COMBINED 0x0C
-#define KW_I2C_MODE_MODE_MASK 0x0C
-#define KW_I2C_MODE_CHAN_MASK 0xF0
-
-/* Control register */
-#define KW_I2C_CTL_AAK 0x01
-#define KW_I2C_CTL_XADDR 0x02
-#define KW_I2C_CTL_STOP 0x04
-#define KW_I2C_CTL_START 0x08
-
-/* Status register */
-#define KW_I2C_STAT_BUSY 0x01
-#define KW_I2C_STAT_LAST_AAK 0x02
-#define KW_I2C_STAT_LAST_RW 0x04
-#define KW_I2C_STAT_SDA 0x08
-#define KW_I2C_STAT_SCL 0x10
-
-/* IER & ISR registers */
-#define KW_I2C_IRQ_DATA 0x01
-#define KW_I2C_IRQ_ADDR 0x02
-#define KW_I2C_IRQ_STOP 0x04
-#define KW_I2C_IRQ_START 0x08
-#define KW_I2C_IRQ_MASK 0x0F
-
-/* Physical interface */
-struct keywest_iface
-{
- struct device_node *node;
- void __iomem * base;
- unsigned bsteps;
- int irq;
- spinlock_t lock;
- struct keywest_chan *channels;
- unsigned chan_count;
- u8 cur_mode;
- char read_write;
- u8 *data;
- unsigned datalen;
- int state;
- int result;
- struct timer_list timeout_timer;
- struct completion complete;
-};
-
-enum {
- state_idle,
- state_addr,
- state_read,
- state_write,
- state_stop,
- state_dead
-};
-
-/* Channel on an interface */
-struct keywest_chan
-{
- struct i2c_adapter adapter;
- struct keywest_iface* iface;
- unsigned chan_no;
-};
-
-/* Register access */
-
-static inline u8 __read_reg(struct keywest_iface *iface, reg_t reg)
-{
- return in_8(iface->base
- + (((unsigned)reg) << iface->bsteps));
-}
-
-static inline void __write_reg(struct keywest_iface *iface, reg_t reg, u8 val)
-{
- out_8(iface->base
- + (((unsigned)reg) << iface->bsteps), val);
- (void)__read_reg(iface, reg_subaddr);
-}
-
-#define write_reg(reg, val) __write_reg(iface, reg, val)
-#define read_reg(reg) __read_reg(iface, reg)
-
-
-
-#endif /* __I2C_KEYWEST_H__ */