util/ectool/ec.h

   1 /*
   2  * This file is part of the ectool project.
   3  *
   4  * Copyright (C) 2008-2009 coresystems GmbH
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; version 2 of the License.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  18  */
  19
  20 #ifndef _EC_H
  21 #define _EC_H
  22
  23 #define EC_DATA         0x62
  24 #define EC_SC           0x66
  25
  26 /* EC_SC input */
  27 #define   EC_SMI_EVT    (1 << 6)        // 1: SMI event pending
  28 #define   EC_SCI_EVT    (1 << 5)        // 1: SCI event pending
  29 #define   EC_BURST      (1 << 4)        // controller is in burst mode
  30 #define   EC_CMD        (1 << 3)        // 1: byte in data register is command
  31                                         // 0: byte in data register is data
  32 #define   EC_IBF        (1 << 1)        // 1: input buffer full (data ready for ec)
  33 #define   EC_OBF        (1 << 0)        // 1: output buffer full (data ready for host)
  34
  35 /* EC_SC output */
  36 #define   RD_EC         0x80    // Read Embedded Controller
  37 #define   WR_EC         0x81    // Write Embedded Controller
  38 #define   BE_EC         0x82    // Burst Enable Embedded Controller
  39 #define   BD_EC         0x83    // Burst Disable Embedded Controller
  40 #define   QR_EC         0x84    // Query Embedded Controller
  41 #define   RX_EC         0xf0    // Read Extended operation
  42 #define   WX_EC         0xf1    // Write Extended operation
  43
  44 int send_ec_command(uint8_t command);
  45 int send_ec_data(uint8_t data);
  46 int send_ec_data_nowait(uint8_t data);
  47 uint8_t recv_ec_data(void);
  48 uint8_t ec_read(uint8_t addr);
  49 int ec_write(uint8_t addr, uint8_t data);
  50 uint8_t ec_ext_read(uint16_t addr);
  51 int ec_ext_write(uint16_t addr, uint8_t data);
  52 uint8_t ec_idx_read(uint16_t addr);
  53 uint8_t ec_query(void);
  54 #endif