111 lines
2.2 KiB
C
111 lines
2.2 KiB
C
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#ifndef __LINUX_MFD_NVEC
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#define __LINUX_MFD_NVEC
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#include <linux/semaphore.h>
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typedef enum {
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NVEC_2BYTES,
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NVEC_3BYTES,
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NVEC_VAR_SIZE
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} nvec_size;
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typedef enum {
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NOT_REALLY,
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YES,
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NOT_AT_ALL,
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} how_care;
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typedef enum {
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NVEC_SYS=1,
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NVEC_BAT,
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NVEC_KBD = 5,
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NVEC_PS2,
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NVEC_CNTL,
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NVEC_KB_EVT = 0x80,
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NVEC_PS2_EVT
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} nvec_event;
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typedef enum {
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NVEC_WAIT,
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NVEC_READ,
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NVEC_WRITE
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} nvec_state;
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struct nvec_msg {
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unsigned char *data;
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unsigned short size;
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unsigned short pos;
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struct list_head node;
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};
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struct nvec_subdev {
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const char *name;
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void *platform_data;
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int id;
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};
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struct nvec_platform_data {
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int num_subdevs;
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int i2c_addr;
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int gpio;
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int irq;
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int base;
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int size;
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char clock[16];
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struct nvec_subdev *subdevs;
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};
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struct nvec_chip {
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struct device *dev;
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int gpio;
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int irq;
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unsigned char *i2c_regs;
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nvec_state state;
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struct atomic_notifier_head notifier_list;
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struct list_head rx_data, tx_data;
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struct notifier_block nvec_status_notifier;
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struct work_struct rx_work, tx_work;
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struct nvec_msg *rx, *tx;
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/* sync write stuff */
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struct semaphore sync_write_mutex;
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struct completion sync_write;
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u16 sync_write_pending;
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struct nvec_msg *last_sync_msg;
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};
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extern void nvec_write_async(struct nvec_chip *nvec, unsigned char *data, short size);
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extern int nvec_register_notifier(struct nvec_chip *nvec,
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struct notifier_block *nb, unsigned int events);
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extern int nvec_unregister_notifier(struct device *dev,
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struct notifier_block *nb, unsigned int events);
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const char *nvec_send_msg(unsigned char *src, unsigned char *dst_size, how_care care_resp, void (*rt_handler)(unsigned char *data));
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extern int nvec_ps2(struct nvec_chip *nvec);
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extern int nvec_kbd_init(struct nvec_chip *nvec);
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#define I2C_CNFG 0x00
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#define I2C_CNFG_PACKET_MODE_EN (1<<10)
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#define I2C_CNFG_NEW_MASTER_SFM (1<<11)
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#define I2C_CNFG_DEBOUNCE_CNT_SHIFT 12
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#define I2C_SL_CNFG 0x20
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#define I2C_SL_NEWL (1<<2)
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#define I2C_SL_NACK (1<<1)
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#define I2C_SL_RESP (1<<0)
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#define I2C_SL_IRQ (1<<3)
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#define END_TRANS (1<<4)
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#define RCVD (1<<2)
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#define RNW (1<<1)
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#define I2C_SL_RCVD 0x24
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#define I2C_SL_STATUS 0x28
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#define I2C_SL_ADDR1 0x2c
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#define I2C_SL_ADDR2 0x30
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#define I2C_SL_DELAY_COUNT 0x3c
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#endif
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