| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <console/console.h> |
| #include <ec/acpi/ec.h> |
| #include <stdint.h> |
| #include <string.h> |
| |
| #include "ec.h" |
| #include "commands.h" |
| |
| int wilco_ec_get_info(enum get_ec_info_cmd type, char *info) |
| { |
| struct ec_response_get_ec_info rsp; |
| |
| if (!info) |
| return -1; |
| if (wilco_ec_sendrecv(KB_EC_INFO, type, &rsp, sizeof(rsp)) < 0) |
| return -1; |
| |
| /* Copy returned string */ |
| strncpy(info, rsp.data, sizeof(rsp.data)); |
| return 0; |
| } |
| |
| void wilco_ec_print_all_info(void) |
| { |
| char info[EC_INFO_MAX_SIZE]; |
| |
| if (!wilco_ec_get_info(GET_EC_LABEL, info)) |
| printk(BIOS_INFO, "EC Label : %s\n", info); |
| |
| if (!wilco_ec_get_info(GET_EC_SVN_REV, info)) |
| printk(BIOS_INFO, "EC Revision : %s\n", info); |
| |
| if (!wilco_ec_get_info(GET_EC_MODEL_NO, info)) |
| printk(BIOS_INFO, "EC Model Num : %s\n", info); |
| |
| if (!wilco_ec_get_info(GET_EC_BUILD_DATE, info)) |
| printk(BIOS_INFO, "EC Build Date : %s\n", info); |
| } |
| |
| static int wilco_ec_get_power_smi(struct ec_pm_event_state *pm) |
| { |
| struct ec_response_power_smi { |
| uint8_t pm_event_1; |
| uint8_t pm_state_1; |
| uint8_t hotkey; |
| uint8_t pm_state_2; |
| uint8_t pm_state_3; |
| uint8_t pm_state_4; |
| uint8_t pm_state_5; |
| uint8_t pm_event_2; |
| uint8_t pm_state_6; |
| } __packed rsp; |
| |
| if (!pm) |
| return -1; |
| if (wilco_ec_sendrecv_noargs(KB_POWER_SMI, &rsp, sizeof(rsp)) < 0) |
| return -1; |
| |
| pm->event[0] = rsp.pm_event_1; |
| pm->event[1] = rsp.pm_event_2; |
| pm->state[0] = rsp.pm_state_1; |
| pm->state[1] = rsp.pm_state_2; |
| pm->state[2] = rsp.pm_state_3; |
| pm->state[3] = rsp.pm_state_4; |
| pm->state[4] = rsp.pm_state_5; |
| pm->state[5] = rsp.pm_state_6; |
| pm->hotkey = rsp.hotkey; |
| |
| return 0; |
| } |
| |
| static int wilco_ec_get_power_status(struct ec_pm_event_state *pm) |
| { |
| struct ec_response_power_status { |
| uint8_t pm_state_1; |
| uint8_t pm_state_2; |
| uint8_t pm_state_3; |
| uint8_t pm_state_4; |
| uint8_t pm_state_5; |
| uint8_t ac_type_lsb; |
| uint8_t pm_state_6; |
| uint8_t pm_event_2; |
| uint8_t ac_type_msb; |
| } __packed rsp; |
| |
| if (!pm) |
| return -1; |
| if (wilco_ec_sendrecv_noargs(KB_POWER_STATUS, &rsp, sizeof(rsp)) < 0) |
| return -1; |
| |
| pm->hotkey = 0; |
| pm->event[0] = 0; |
| pm->event[1] = rsp.pm_event_2; |
| pm->state[0] = rsp.pm_state_1; |
| pm->state[1] = rsp.pm_state_2; |
| pm->state[2] = rsp.pm_state_3; |
| pm->state[3] = rsp.pm_state_4; |
| pm->state[4] = rsp.pm_state_5; |
| pm->state[5] = rsp.pm_state_6; |
| pm->ac_type = rsp.ac_type_msb << 8 | rsp.ac_type_lsb; |
| |
| return 0; |
| } |
| |
| int wilco_ec_get_pm(struct ec_pm_event_state *pm, bool clear) |
| { |
| if (clear) |
| return wilco_ec_get_power_smi(pm); |
| else |
| return wilco_ec_get_power_status(pm); |
| } |
| |
| int wilco_ec_get_lid_state(void) |
| { |
| struct ec_pm_event_state pm; |
| |
| if (wilco_ec_get_power_status(&pm) < 0) |
| return -1; |
| |
| return !!(pm.state[0] & EC_PM1_LID_OPEN); |
| } |
| |
| int wilco_ec_get_board_id(uint8_t *id) |
| { |
| return wilco_ec_mailbox(WILCO_EC_MSG_RAW, KB_BOARD_ID, |
| NULL, 0, id, sizeof(*id)); |
| } |
| |
| void wilco_ec_slp_en(void) |
| { |
| /* EC does not respond to this command */ |
| if (wilco_ec_mailbox(WILCO_EC_MSG_NO_RESPONSE, |
| KB_SLP_EN, NULL, 0, NULL, 0) < 0) |
| printk(BIOS_ERR, "%s: command failed\n", __func__); |
| } |
| |
| void wilco_ec_power_off(enum ec_power_off_reason reason) |
| { |
| /* EC does not respond to this command */ |
| if (wilco_ec_mailbox(WILCO_EC_MSG_NO_RESPONSE, |
| KB_POWER_OFF, &reason, 1, NULL, 0) < 0) |
| printk(BIOS_ERR, "%s: command failed\n", __func__); |
| } |
| |
| int wilco_ec_radio_control(enum ec_radio radio, uint8_t state) |
| { |
| uint8_t radio_control[3] = { radio, RADIO_WRITE, state }; |
| |
| return wilco_ec_mailbox(WILCO_EC_MSG_DEFAULT, KB_RADIO_CONTROL, |
| radio_control, ARRAY_SIZE(radio_control), |
| NULL, 0); |
| } |
| |
| int wilco_ec_change_wake(uint8_t source, enum ec_wake_change change) |
| { |
| uint8_t wake_source[3] = { change, source }; |
| |
| return wilco_ec_mailbox(WILCO_EC_MSG_DEFAULT, KB_ACPI_WAKEUP_CHANGE, |
| wake_source, ARRAY_SIZE(wake_source), |
| NULL, 0); |
| } |
| |
| int wilco_ec_signed_fw(void) |
| { |
| ec_set_ports(CONFIG_EC_BASE_ACPI_COMMAND, |
| CONFIG_EC_BASE_ACPI_DATA); |
| return !!ec_read(EC_RAM_SIGNED_FW); |
| } |
| |
| struct err_code_entry { |
| uint8_t post_code; |
| enum ec_err_code ec_err; |
| }; |
| |
| /* |
| * Any post codes not listed in the post_code_err_map[] use default. |
| */ |
| static const enum ec_err_code default_ec_err = DLED_ROM; |
| static const struct err_code_entry post_code_err_map[] = { |
| { .post_code = POSTCODE_RAM_FAILURE, .ec_err = DLED_MEMORY, }, |
| { .post_code = POSTCODE_VIDEO_FAILURE, .ec_err = DLED_PANEL, }, |
| }; |
| |
| /* Records the most recent post code during boot */ |
| static uint8_t wilco_ec_saved_post_code; |
| |
| void wilco_ec_save_post_code(uint8_t post_code) |
| { |
| wilco_ec_saved_post_code = post_code; |
| } |
| |
| /* Send error code to the EC based on last saved post code */ |
| void die_notify(void) |
| { |
| size_t i; |
| enum ec_err_code err_code = default_ec_err; |
| |
| for (i = 0; i < ARRAY_SIZE(post_code_err_map); i++) { |
| if (post_code_err_map[i].post_code == |
| wilco_ec_saved_post_code) { |
| err_code = post_code_err_map[i].ec_err; |
| break; |
| } |
| } |
| |
| printk(BIOS_EMERG, "Fatal error: post_code 0x%02x, EC err 0x%02x\n", |
| wilco_ec_saved_post_code, err_code); |
| |
| wilco_ec_mailbox(WILCO_EC_MSG_DEFAULT, KB_ERR_CODE, |
| &err_code, 1, NULL, 0); |
| } |
| |
| /* |
| * EC CPU ID data struct |
| * MBOX[2] = 0xFF |
| * MBOX[3] = CPUID_Low |
| * MBOX[4] = CPUID_Mid |
| * MBOX[5] = CPUID_High |
| * MBOX[6] = CPU_Core |
| * MBOX[7] = GPU_Core |
| * MBOX[8] = Reserved |
| */ |
| int wilco_ec_set_cpuid(uint32_t cpuid, uint8_t cpu_cores, uint8_t gpu_cores) |
| { |
| uint8_t cpu_id[7] = {0}, i; |
| |
| cpu_id[0] = 0xff; |
| for (i = 1; i < 4; i++) { |
| cpu_id[i] = cpuid & 0xff; |
| cpuid = cpuid >> 8; |
| } |
| cpu_id[4] = cpu_cores; |
| cpu_id[5] = gpu_cores; |
| |
| return wilco_ec_mailbox(WILCO_EC_MSG_DEFAULT, KB_CPU_ID, cpu_id, |
| ARRAY_SIZE(cpu_id), NULL, 0); |
| } |