| Marc Dietrich | 32890b9 | 2011-05-19 16:34:42 +0200 | [diff] [blame] | 1 | #ifndef __LINUX_MFD_NVEC |
| 2 | #define __LINUX_MFD_NVEC |
| 3 | |
| 4 | #include <linux/semaphore.h> |
| 5 | |
| 6 | typedef enum { |
| 7 | NVEC_2BYTES, |
| 8 | NVEC_3BYTES, |
| 9 | NVEC_VAR_SIZE |
| 10 | } nvec_size; |
| 11 | |
| 12 | typedef enum { |
| 13 | NOT_REALLY, |
| 14 | YES, |
| 15 | NOT_AT_ALL, |
| 16 | } how_care; |
| 17 | |
| 18 | typedef enum { |
| 19 | NVEC_SYS=1, |
| 20 | NVEC_BAT, |
| 21 | NVEC_KBD = 5, |
| 22 | NVEC_PS2, |
| 23 | NVEC_CNTL, |
| 24 | NVEC_KB_EVT = 0x80, |
| 25 | NVEC_PS2_EVT |
| 26 | } nvec_event; |
| 27 | |
| 28 | typedef enum { |
| 29 | NVEC_WAIT, |
| 30 | NVEC_READ, |
| 31 | NVEC_WRITE |
| 32 | } nvec_state; |
| 33 | |
| 34 | struct nvec_msg { |
| 35 | unsigned char *data; |
| 36 | unsigned short size; |
| 37 | unsigned short pos; |
| 38 | struct list_head node; |
| 39 | }; |
| 40 | |
| 41 | struct nvec_subdev { |
| 42 | const char *name; |
| 43 | void *platform_data; |
| 44 | int id; |
| 45 | }; |
| 46 | |
| 47 | struct nvec_platform_data { |
| 48 | int num_subdevs; |
| 49 | int i2c_addr; |
| 50 | int gpio; |
| 51 | int irq; |
| 52 | int base; |
| 53 | int size; |
| 54 | char clock[16]; |
| 55 | struct nvec_subdev *subdevs; |
| 56 | }; |
| 57 | |
| 58 | struct nvec_chip { |
| 59 | struct device *dev; |
| 60 | int gpio; |
| 61 | int irq; |
| 62 | unsigned char *i2c_regs; |
| 63 | nvec_state state; |
| 64 | struct atomic_notifier_head notifier_list; |
| 65 | struct list_head rx_data, tx_data; |
| 66 | struct notifier_block nvec_status_notifier; |
| 67 | struct work_struct rx_work, tx_work; |
| 68 | struct nvec_msg *rx, *tx; |
| 69 | |
| 70 | /* sync write stuff */ |
| 71 | struct semaphore sync_write_mutex; |
| 72 | struct completion sync_write; |
| 73 | u16 sync_write_pending; |
| 74 | struct nvec_msg *last_sync_msg; |
| 75 | }; |
| 76 | |
| 77 | extern void nvec_write_async(struct nvec_chip *nvec, unsigned char *data, short size); |
| 78 | |
| 79 | extern int nvec_register_notifier(struct nvec_chip *nvec, |
| 80 | struct notifier_block *nb, unsigned int events); |
| 81 | |
| 82 | extern int nvec_unregister_notifier(struct device *dev, |
| 83 | struct notifier_block *nb, unsigned int events); |
| 84 | |
| 85 | const char *nvec_send_msg(unsigned char *src, unsigned char *dst_size, how_care care_resp, void (*rt_handler)(unsigned char *data)); |
| 86 | |
| 87 | extern int nvec_ps2(struct nvec_chip *nvec); |
| 88 | extern int nvec_kbd_init(struct nvec_chip *nvec); |
| 89 | |
| 90 | #define I2C_CNFG 0x00 |
| 91 | #define I2C_CNFG_PACKET_MODE_EN (1<<10) |
| 92 | #define I2C_CNFG_NEW_MASTER_SFM (1<<11) |
| 93 | #define I2C_CNFG_DEBOUNCE_CNT_SHIFT 12 |
| 94 | |
| 95 | #define I2C_SL_CNFG 0x20 |
| 96 | #define I2C_SL_NEWL (1<<2) |
| 97 | #define I2C_SL_NACK (1<<1) |
| 98 | #define I2C_SL_RESP (1<<0) |
| 99 | #define I2C_SL_IRQ (1<<3) |
| 100 | #define END_TRANS (1<<4) |
| 101 | #define RCVD (1<<2) |
| 102 | #define RNW (1<<1) |
| 103 | |
| 104 | #define I2C_SL_RCVD 0x24 |
| 105 | #define I2C_SL_STATUS 0x28 |
| 106 | #define I2C_SL_ADDR1 0x2c |
| 107 | #define I2C_SL_ADDR2 0x30 |
| 108 | #define I2C_SL_DELAY_COUNT 0x3c |
| 109 | |
| 110 | #endif |