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