1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 3 #ifndef _EC_ACPI_H 4 #define _EC_ACPI_H 5 6 #include <types.h> 7 8 #define EC_DATA 0x62 9 #define EC_SC 0x66 10 11 /* EC_SC input */ 12 #define EC_SMI_EVT (1 << 6) // 1: SMI event pending 13 #define EC_SCI_EVT (1 << 5) // 1: SCI event pending 14 #define EC_BURST (1 << 4) // 1: controller is in burst mode 15 #define EC_CMD (1 << 3) // 1: byte in data register is command 16 // 0: byte in data register is data 17 #define EC_IBF (1 << 1) // 1: input buffer full (data ready for ec) 18 #define EC_OBF (1 << 0) // 1: output buffer full (data ready for host) 19 /* EC_SC output */ 20 #define RD_EC 0x80 // Read Embedded Controller 21 #define WR_EC 0x81 // Write Embedded Controller 22 #define BE_EC 0x82 // Burst Enable Embedded Controller 23 #define BD_EC 0x83 // Burst Disable Embedded Controller 24 #define QR_EC 0x84 // Query Embedded Controller 25 26 bool ec_ready_send(int timeout_us); 27 bool ec_ready_recv(int timeout_us); 28 int send_ec_command(u8 command); 29 int send_ec_command_timeout(u8 command, int timeout); 30 int send_ec_data(u8 data); 31 int send_ec_data_timeout(u8 data, int timeout); 32 int recv_ec_data(void); 33 int recv_ec_data_timeout(int timeout); 34 void ec_clear_out_queue(void); 35 u8 ec_status(void); 36 u8 ec_query(void); 37 u8 ec_read(u8 addr); 38 int ec_write(u8 addr, u8 data); 39 void ec_set_bit(u8 addr, u8 bit); 40 void ec_clr_bit(u8 addr, u8 bit); 41 void ec_set_ports(u16 cmd_reg, u16 data_reg); 42 43 #endif /* _EC_ACPI_H */ 44