LXR linux/drivers/acpi/sbshc.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2struct acpi_smb_hc;
   3enum acpi_smb_protocol {
   4        SMBUS_WRITE_QUICK = 2,
   5        SMBUS_READ_QUICK = 3,
   6        SMBUS_SEND_BYTE = 4,
   7        SMBUS_RECEIVE_BYTE = 5,
   8        SMBUS_WRITE_BYTE = 6,
   9        SMBUS_READ_BYTE = 7,
  10        SMBUS_WRITE_WORD  = 8,
  11        SMBUS_READ_WORD  = 9,
  12        SMBUS_WRITE_BLOCK = 0xa,
  13        SMBUS_READ_BLOCK = 0xb,
  14        SMBUS_PROCESS_CALL = 0xc,
  15        SMBUS_BLOCK_PROCESS_CALL = 0xd,
  16};
  17
  18enum acpi_sbs_device_addr {
  19        ACPI_SBS_CHARGER = 0x9,
  20        ACPI_SBS_MANAGER = 0xa,
  21        ACPI_SBS_BATTERY = 0xb,
  22};
  23
  24typedef void (*smbus_alarm_callback)(void *context);
  25
  26extern int acpi_smbus_read(struct acpi_smb_hc *hc, u8 protocol, u8 address,
  27                u8 command, u8 *data);
  28extern int acpi_smbus_write(struct acpi_smb_hc *hc, u8 protocol, u8 slave_address,
  29                u8 command, u8 *data, u8 length);
  30extern int acpi_smbus_register_callback(struct acpi_smb_hc *hc,
  31                smbus_alarm_callback callback, void *context);
  32extern int acpi_smbus_unregister_callback(struct acpi_smb_hc *hc);
  33