#ifndef DEVICE_SMBUS_H #define DEVICE_SMBUS_H #include <stdint.h> #include <device/device.h> #include <device/i2c_bus.h> /* Common SMBus bus operations */ struct smbus_bus_operations { int (*recv_byte)(struct device *dev); int (*send_byte)(struct device *dev, u8 value); int (*read_byte)(struct device *dev, u8 addr); int (*write_byte)(struct device *dev, u8 addr, u8 value); int (*block_read)(struct device *dev, u8 cmd, u8 bytes, u8 *buffer); int (*block_write)(struct device *dev, u8 cmd, u8 bytes, const u8 *buffer); }; static inline const struct smbus_bus_operations *ops_smbus_bus(struct bus *bus) { const struct smbus_bus_operations *bops; bops = 0; if (bus && bus->dev && bus->dev->ops) bops = bus->dev->ops->ops_smbus_bus; return bops; } struct bus *get_pbus_smbus(struct device *dev); #if !DEVTREE_EARLY static inline int smbus_recv_byte(struct device *const dev) { return i2c_dev_readb(dev); } static inline int smbus_send_byte(struct device *const dev, u8 byte) { return i2c_dev_writeb(dev, byte); } static inline int smbus_read_byte(struct device *const dev, u8 addr) { return i2c_dev_readb_at(dev, addr); } static inline int smbus_write_byte(struct device *const dev, u8 addr, u8 val) { return i2c_dev_writeb_at(dev, addr, val); } int smbus_block_read(struct device *dev, u8 cmd, u8 bytes, u8 *buffer); int smbus_block_write(struct device *dev, u8 cmd, u8 bytes, const u8 *buffer); #endif #endif /* DEVICE_SMBUS_H */