1a1b04ea51
Change-Id: I1157cf391178a27db437d1d08ef5cb9333e976d0 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38233 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
57 lines
1.4 KiB
C
57 lines
1.4 KiB
C
#ifndef DEVICE_SMBUS_H
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#define DEVICE_SMBUS_H
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#include <stdint.h>
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#include <device/device.h>
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#include <device/i2c_bus.h>
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/* Common SMBus bus operations */
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struct smbus_bus_operations {
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int (*recv_byte)(struct device *dev);
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int (*send_byte)(struct device *dev, u8 value);
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int (*read_byte)(struct device *dev, u8 addr);
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int (*write_byte)(struct device *dev, u8 addr, u8 value);
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int (*block_read)(struct device *dev, u8 cmd, u8 bytes, u8 *buffer);
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int (*block_write)(struct device *dev, u8 cmd, u8 bytes,
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const u8 *buffer);
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};
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static inline const struct smbus_bus_operations *ops_smbus_bus(struct bus *bus)
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{
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const struct smbus_bus_operations *bops;
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bops = 0;
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if (bus && bus->dev && bus->dev->ops)
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bops = bus->dev->ops->ops_smbus_bus;
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return bops;
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}
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struct bus *get_pbus_smbus(struct device *dev);
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#if !DEVTREE_EARLY
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static inline int smbus_recv_byte(struct device *const dev)
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{
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return i2c_dev_readb(dev);
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}
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static inline int smbus_send_byte(struct device *const dev, u8 byte)
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{
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return i2c_dev_writeb(dev, byte);
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}
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static inline int smbus_read_byte(struct device *const dev, u8 addr)
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{
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return i2c_dev_readb_at(dev, addr);
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}
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static inline int smbus_write_byte(struct device *const dev, u8 addr, u8 val)
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{
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return i2c_dev_writeb_at(dev, addr, val);
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}
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int smbus_block_read(struct device *dev, u8 cmd, u8 bytes, u8 *buffer);
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int smbus_block_write(struct device *dev, u8 cmd, u8 bytes, const u8 *buffer);
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#endif
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#endif /* DEVICE_SMBUS_H */
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