| Eric Biederman | 992cd00 | 2004-10-14 21:10:23 +0000 | [diff] [blame] | 1 | #ifndef DEVICE_SMBUS_H |
| 2 | #define DEVICE_SMBUS_H |
| 3 | |
| 4 | #include <stdint.h> |
| 5 | #include <device/device.h> |
| 6 | #include <device/path.h> |
| Eric Biederman | 992cd00 | 2004-10-14 21:10:23 +0000 | [diff] [blame] | 7 | #include <device/smbus_def.h> |
| 8 | |
| Uwe Hermann | d453dd0 | 2010-10-18 00:00:57 +0000 | [diff] [blame] | 9 | /* Common SMBus bus operations */ |
| Eric Biederman | 992cd00 | 2004-10-14 21:10:23 +0000 | [diff] [blame] | 10 | struct smbus_bus_operations { |
| 11 | int (*quick_read) (device_t dev); |
| 12 | int (*quick_write) (device_t dev); |
| 13 | int (*recv_byte) (device_t dev); |
| Uwe Hermann | d453dd0 | 2010-10-18 00:00:57 +0000 | [diff] [blame] | 14 | int (*send_byte) (device_t dev, u8 value); |
| 15 | int (*read_byte) (device_t dev, u8 addr); |
| 16 | int (*write_byte) (device_t dev, u8 addr, u8 value); |
| 17 | int (*read_word) (device_t dev, u8 addr); |
| 18 | int (*write_word) (device_t dev, u8 addr, u16 value); |
| 19 | int (*process_call)(device_t dev, u8 cmd, u16 data); |
| 20 | int (*block_read) (device_t dev, u8 cmd, u8 bytes, u8 *buffer); |
| 21 | int (*block_write) (device_t dev, u8 cmd, u8 bytes, const u8 *buffer); |
| Eric Biederman | 992cd00 | 2004-10-14 21:10:23 +0000 | [diff] [blame] | 22 | }; |
| 23 | |
| Yinghai Lu | 7213d0f | 2004-12-03 03:39:04 +0000 | [diff] [blame] | 24 | static inline const struct smbus_bus_operations *ops_smbus_bus(struct bus *bus) |
| Eric Biederman | 992cd00 | 2004-10-14 21:10:23 +0000 | [diff] [blame] | 25 | { |
| Uwe Hermann | d453dd0 | 2010-10-18 00:00:57 +0000 | [diff] [blame] | 26 | const struct smbus_bus_operations *bops; |
| 27 | |
| 28 | bops = 0; |
| 29 | if (bus && bus->dev && bus->dev->ops) |
| 30 | bops = bus->dev->ops->ops_smbus_bus; |
| 31 | |
| 32 | return bops; |
| Eric Biederman | 992cd00 | 2004-10-14 21:10:23 +0000 | [diff] [blame] | 33 | } |
| Uwe Hermann | d453dd0 | 2010-10-18 00:00:57 +0000 | [diff] [blame] | 34 | |
| Yinghai Lu | 7213d0f | 2004-12-03 03:39:04 +0000 | [diff] [blame] | 35 | struct bus *get_pbus_smbus(device_t dev); |
| 36 | int smbus_set_link(device_t dev); |
| 37 | |
| 38 | int smbus_quick_read(device_t dev); |
| 39 | int smbus_quick_write(device_t dev); |
| 40 | int smbus_recv_byte(device_t dev); |
| Uwe Hermann | d453dd0 | 2010-10-18 00:00:57 +0000 | [diff] [blame] | 41 | int smbus_send_byte(device_t dev, u8 byte); |
| 42 | int smbus_read_byte(device_t dev, u8 addr); |
| 43 | int smbus_write_byte(device_t dev, u8 addr, u8 val); |
| 44 | int smbus_read_word(device_t dev, u8 addr); |
| 45 | int smbus_write_word(device_t dev, u8 addr, u16 val); |
| 46 | int smbus_process_call(device_t dev, u8 cmd, u16 data); |
| 47 | int smbus_block_read(device_t dev, u8 cmd, u8 bytes, u8 *buffer); |
| 48 | int smbus_block_write(device_t dev, u8 cmd, u8 bytes, const u8 *buffer); |
| Eric Biederman | 992cd00 | 2004-10-14 21:10:23 +0000 | [diff] [blame] | 49 | |
| 50 | #endif /* DEVICE_SMBUS_H */ |