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 36