util/ectool/ec.h

   1 /* This file is part of the ectool project. */
   2 /* SPDX-License-Identifier: GPL-2.0-only */
   3
   4 #ifndef _EC_H
   5 #define _EC_H
   6
   7 /* EC_SC input */
   8 #define   EC_SMI_EVT    (1 << 6)        // 1: SMI event pending
   9 #define   EC_SCI_EVT    (1 << 5)        // 1: SCI event pending
  10 #define   EC_BURST      (1 << 4)        // controller is in burst mode
  11 #define   EC_CMD        (1 << 3)        // 1: byte in data register is command
  12                                         // 0: byte in data register is data
  13 #define   EC_IBF        (1 << 1)        // 1: input buffer full (data ready for ec)
  14 #define   EC_OBF        (1 << 0)        // 1: output buffer full (data ready for host)
  15
  16 /* EC_SC output */
  17 #define   RD_EC         0x80    // Read Embedded Controller
  18 #define   WR_EC         0x81    // Write Embedded Controller
  19 #define   BE_EC         0x82    // Burst Enable Embedded Controller
  20 #define   BD_EC         0x83    // Burst Disable Embedded Controller
  21 #define   QR_EC         0x84    // Query Embedded Controller
  22 #define   RX_EC         0xf0    // Read Extended operation
  23 #define   WX_EC         0xf1    // Write Extended operation
  24
  25 int send_ec_command(uint8_t command);
  26 int send_ec_data(uint8_t data);
  27 int send_ec_data_nowait(uint8_t data);
  28 uint8_t recv_ec_data(void);
  29 uint8_t ec_read(uint8_t addr);
  30 int ec_write(uint8_t addr, uint8_t data);
  31 uint8_t ec_ext_read(uint16_t addr);
  32 int ec_ext_write(uint16_t addr, uint8_t data);
  33 uint8_t ec_idx_read(uint16_t addr);
  34 uint8_t ec_query(void);
  35 int get_ec_ports(void);
  36 #endif