src/ec/smsc/mec1308/ec.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 /*
   4  * Mailbox EC communication interface for SMSC MEC1308 Embedded Controller.
   5  */
   6
   7 #ifndef _EC_SMSC_MEC1308_EC_H
   8 #define _EC_SMSC_MEC1308_EC_H
   9
  10 #define EC_TIMEOUT           0xfff
  11 #define EC_MAILBOX_COMMAND   0x82  // Send a command
  12 #define EC_MAILBOX_DATA      0x84  // Send data with a command
  13 #define EC_MAILBOX_DATA_H    0x85  // Send data with a command
  14 #define EC_RAM_READ          0x88  // Read from RAM
  15 #define EC_RAM_WRITE         0x89  // Write to RAM
  16
  17 int send_ec_command(u8 command);
  18 int send_ec_command_data(u8 command, u8 data);
  19 u8 read_ec_command_byte(u8 command);
  20 u8 ec_read(u8 addr);
  21 int ec_write(u8 addr, u8 data);
  22 void ec_set_bit(u8 addr, u8 bit);
  23 void ec_clr_bit(u8 addr, u8 bit);
  24 void ec_set_ports(u16 cmd_reg, u16 data_reg);
  25
  26 #endif /* _EC_SMSC_MEC1308_EC_H */