hc
2024-12-19 9370bb92b2d16684ee45cf24e879c93c509162da
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/* SPDX-License-Identifier: GPL-2.0 */
struct acpi_smb_hc;
enum acpi_smb_protocol {
   SMBUS_WRITE_QUICK = 2,
   SMBUS_READ_QUICK = 3,
   SMBUS_SEND_BYTE = 4,
   SMBUS_RECEIVE_BYTE = 5,
   SMBUS_WRITE_BYTE = 6,
   SMBUS_READ_BYTE = 7,
   SMBUS_WRITE_WORD  = 8,
   SMBUS_READ_WORD  = 9,
   SMBUS_WRITE_BLOCK = 0xa,
   SMBUS_READ_BLOCK = 0xb,
   SMBUS_PROCESS_CALL = 0xc,
   SMBUS_BLOCK_PROCESS_CALL = 0xd,
};
 
enum acpi_sbs_device_addr {
   ACPI_SBS_CHARGER = 0x9,
   ACPI_SBS_MANAGER = 0xa,
   ACPI_SBS_BATTERY = 0xb,
};
 
typedef void (*smbus_alarm_callback)(void *context);
 
extern int acpi_smbus_read(struct acpi_smb_hc *hc, u8 protocol, u8 address,
       u8 command, u8 *data);
extern int acpi_smbus_write(struct acpi_smb_hc *hc, u8 protocol, u8 slave_address,
       u8 command, u8 *data, u8 length);
extern int acpi_smbus_register_callback(struct acpi_smb_hc *hc,
       smbus_alarm_callback callback, void *context);
extern int acpi_smbus_unregister_callback(struct acpi_smb_hc *hc);