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https://github.com/fail0verflow/switch-coreboot.git
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7213d0f513
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1809 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
49 lines
1.8 KiB
C
49 lines
1.8 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/path.h>
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#include <device/smbus_def.h>
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/* Common smbus bus operations */
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struct smbus_bus_operations {
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int (*quick_read) (device_t dev);
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int (*quick_write) (device_t dev);
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int (*recv_byte) (device_t dev);
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int (*send_byte) (device_t dev, uint8_t value);
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int (*read_byte) (device_t dev, uint8_t addr);
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int (*write_byte) (device_t dev, uint8_t addr, uint8_t value);
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int (*read_word) (device_t dev, uint8_t addr);
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int (*write_word) (device_t dev, uint8_t addr, uint16_t value);
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int (*process_call)(device_t dev, uint8_t cmd, uint16_t data);
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int (*block_read) (device_t dev, uint8_t cmd, uint8_t bytes, uint8_t *buffer);
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int (*block_write) (device_t dev, uint8_t cmd, uint8_t bytes, const uint8_t *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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}
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return bops;
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}
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struct bus *get_pbus_smbus(device_t dev);
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int smbus_set_link(device_t dev);
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int smbus_quick_read(device_t dev);
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int smbus_quick_write(device_t dev);
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int smbus_recv_byte(device_t dev);
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int smbus_send_byte(device_t dev, uint8_t byte);
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int smbus_read_byte(device_t dev, uint8_t addr);
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int smbus_write_byte(device_t dev, uint8_t addr, uint8_t val);
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int smbus_read_word(device_t dev, uint8_t addr);
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int smbus_write_word(device_t dev, uint8_t addr, uint16_t val);
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int smbus_process_call(device_t dev, uint8_t cmd, uint16_t data);
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int smbus_block_read(device_t dev, uint8_t cmd, uint8_t bytes, uint8_t *buffer);
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int smbus_block_write(device_t dev, uint8_t cmd, uint8_t bytes, const uint8_t *buffer);
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#endif /* DEVICE_SMBUS_H */
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