Duncan Laurie | b0bf280 | 2018-10-15 02:18:03 +0000 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of the coreboot project. |
| 3 | * |
| 4 | * Copyright 2018 Google LLC |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * 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 | |
| 16 | #include <console/console.h> |
Duncan Laurie | 32346f0 | 2019-03-20 12:51:07 -0700 | [diff] [blame] | 17 | #include <ec/acpi/ec.h> |
Duncan Laurie | b0bf280 | 2018-10-15 02:18:03 +0000 | [diff] [blame] | 18 | #include <stdint.h> |
| 19 | #include <string.h> |
| 20 | |
| 21 | #include "ec.h" |
| 22 | #include "commands.h" |
| 23 | |
| 24 | int wilco_ec_get_info(enum get_ec_info_cmd type, char *info) |
| 25 | { |
| 26 | struct ec_response_get_ec_info rsp; |
| 27 | |
| 28 | if (!info) |
| 29 | return -1; |
| 30 | if (wilco_ec_sendrecv(KB_EC_INFO, type, &rsp, sizeof(rsp)) < 0) |
| 31 | return -1; |
| 32 | |
| 33 | /* Copy returned string */ |
| 34 | strncpy(info, rsp.data, sizeof(rsp.data)); |
| 35 | return 0; |
| 36 | } |
| 37 | |
| 38 | void wilco_ec_print_all_info(void) |
| 39 | { |
| 40 | char info[EC_INFO_MAX_SIZE]; |
| 41 | |
| 42 | if (!wilco_ec_get_info(GET_EC_LABEL, info)) |
| 43 | printk(BIOS_INFO, "EC Label : %s\n", info); |
| 44 | |
| 45 | if (!wilco_ec_get_info(GET_EC_SVN_REV, info)) |
| 46 | printk(BIOS_INFO, "EC Revision : %s\n", info); |
| 47 | |
| 48 | if (!wilco_ec_get_info(GET_EC_MODEL_NO, info)) |
| 49 | printk(BIOS_INFO, "EC Model Num : %s\n", info); |
| 50 | |
| 51 | if (!wilco_ec_get_info(GET_EC_BUILD_DATE, info)) |
| 52 | printk(BIOS_INFO, "EC Build Date : %s\n", info); |
| 53 | } |
Duncan Laurie | 2f95492 | 2018-10-15 02:28:54 +0000 | [diff] [blame] | 54 | |
| 55 | static int wilco_ec_get_power_smi(struct ec_pm_event_state *pm) |
| 56 | { |
| 57 | struct ec_response_power_smi { |
| 58 | uint8_t pm_event_1; |
| 59 | uint8_t pm_state_1; |
| 60 | uint8_t hotkey; |
| 61 | uint8_t pm_state_2; |
| 62 | uint8_t pm_state_3; |
| 63 | uint8_t pm_state_4; |
| 64 | uint8_t pm_state_5; |
| 65 | uint8_t pm_event_2; |
| 66 | uint8_t pm_state_6; |
| 67 | } __packed rsp; |
| 68 | |
| 69 | if (!pm) |
| 70 | return -1; |
| 71 | if (wilco_ec_sendrecv_noargs(KB_POWER_SMI, &rsp, sizeof(rsp)) < 0) |
| 72 | return -1; |
| 73 | |
| 74 | pm->event[0] = rsp.pm_event_1; |
| 75 | pm->event[1] = rsp.pm_event_2; |
| 76 | pm->state[0] = rsp.pm_state_1; |
| 77 | pm->state[1] = rsp.pm_state_2; |
| 78 | pm->state[2] = rsp.pm_state_3; |
| 79 | pm->state[3] = rsp.pm_state_4; |
| 80 | pm->state[4] = rsp.pm_state_5; |
| 81 | pm->state[5] = rsp.pm_state_6; |
| 82 | pm->hotkey = rsp.hotkey; |
| 83 | |
| 84 | return 0; |
| 85 | } |
| 86 | |
| 87 | static int wilco_ec_get_power_status(struct ec_pm_event_state *pm) |
| 88 | { |
| 89 | struct ec_response_power_status { |
| 90 | uint8_t pm_state_1; |
| 91 | uint8_t pm_state_2; |
| 92 | uint8_t pm_state_3; |
| 93 | uint8_t pm_state_4; |
| 94 | uint8_t pm_state_5; |
| 95 | uint8_t ac_type_lsb; |
| 96 | uint8_t pm_state_6; |
| 97 | uint8_t pm_event_2; |
| 98 | uint8_t ac_type_msb; |
| 99 | } __packed rsp; |
| 100 | |
| 101 | if (!pm) |
| 102 | return -1; |
| 103 | if (wilco_ec_sendrecv_noargs(KB_POWER_STATUS, &rsp, sizeof(rsp)) < 0) |
| 104 | return -1; |
| 105 | |
| 106 | pm->hotkey = 0; |
| 107 | pm->event[0] = 0; |
| 108 | pm->event[1] = rsp.pm_event_2; |
| 109 | pm->state[0] = rsp.pm_state_1; |
| 110 | pm->state[1] = rsp.pm_state_2; |
| 111 | pm->state[2] = rsp.pm_state_3; |
| 112 | pm->state[3] = rsp.pm_state_4; |
| 113 | pm->state[4] = rsp.pm_state_5; |
| 114 | pm->state[5] = rsp.pm_state_6; |
| 115 | pm->ac_type = rsp.ac_type_msb << 8 | rsp.ac_type_lsb; |
| 116 | |
| 117 | return 0; |
| 118 | } |
| 119 | |
| 120 | int wilco_ec_get_pm(struct ec_pm_event_state *pm, bool clear) |
| 121 | { |
| 122 | if (clear) |
| 123 | return wilco_ec_get_power_smi(pm); |
| 124 | else |
| 125 | return wilco_ec_get_power_status(pm); |
| 126 | } |
| 127 | |
| 128 | int wilco_ec_get_lid_state(void) |
| 129 | { |
| 130 | struct ec_pm_event_state pm; |
| 131 | |
| 132 | if (wilco_ec_get_power_status(&pm) < 0) |
| 133 | return -1; |
| 134 | |
| 135 | return !!(pm.state[0] & EC_PM1_LID_OPEN); |
| 136 | } |
| 137 | |
Duncan Laurie | b34de93 | 2019-04-10 18:43:56 -0700 | [diff] [blame] | 138 | int wilco_ec_get_board_id(uint8_t *id) |
| 139 | { |
| 140 | return wilco_ec_mailbox(WILCO_EC_MSG_RAW, KB_BOARD_ID, |
| 141 | NULL, 0, id, sizeof(*id)); |
| 142 | } |
| 143 | |
Duncan Laurie | 2f95492 | 2018-10-15 02:28:54 +0000 | [diff] [blame] | 144 | void wilco_ec_slp_en(void) |
| 145 | { |
| 146 | /* EC does not respond to this command */ |
| 147 | if (wilco_ec_mailbox(WILCO_EC_MSG_NO_RESPONSE, |
| 148 | KB_SLP_EN, NULL, 0, NULL, 0) < 0) |
| 149 | printk(BIOS_ERR, "%s: command failed\n", __func__); |
| 150 | } |
| 151 | |
| 152 | void wilco_ec_power_off(enum ec_power_off_reason reason) |
| 153 | { |
| 154 | /* EC does not respond to this command */ |
| 155 | if (wilco_ec_mailbox(WILCO_EC_MSG_NO_RESPONSE, |
| 156 | KB_POWER_OFF, &reason, 1, NULL, 0) < 0) |
| 157 | printk(BIOS_ERR, "%s: command failed\n", __func__); |
| 158 | } |
Duncan Laurie | 57f22f6 | 2018-11-17 12:17:04 -0700 | [diff] [blame] | 159 | |
| 160 | int wilco_ec_radio_control(enum ec_radio radio, uint8_t state) |
| 161 | { |
Duncan Laurie | 35f9507 | 2019-05-23 14:48:29 -0700 | [diff] [blame^] | 162 | uint8_t radio_control[3] = { radio, RADIO_WRITE, state }; |
Duncan Laurie | 57f22f6 | 2018-11-17 12:17:04 -0700 | [diff] [blame] | 163 | |
| 164 | return wilco_ec_mailbox(WILCO_EC_MSG_DEFAULT, KB_RADIO_CONTROL, |
| 165 | radio_control, ARRAY_SIZE(radio_control), |
| 166 | NULL, 0); |
| 167 | } |
Lijian Zhao | a31872c | 2019-01-10 19:31:15 -0800 | [diff] [blame] | 168 | |
| 169 | int wilco_ec_change_wake(uint8_t source, enum ec_wake_change change) |
| 170 | { |
| 171 | uint8_t wake_source[3] = { change, source }; |
| 172 | |
| 173 | return wilco_ec_mailbox(WILCO_EC_MSG_DEFAULT, KB_ACPI_WAKEUP_CHANGE, |
| 174 | wake_source, ARRAY_SIZE(wake_source), |
| 175 | NULL, 0); |
| 176 | } |
Duncan Laurie | 32346f0 | 2019-03-20 12:51:07 -0700 | [diff] [blame] | 177 | |
| 178 | int wilco_ec_signed_fw(void) |
| 179 | { |
| 180 | ec_set_ports(CONFIG_EC_BASE_ACPI_COMMAND, |
| 181 | CONFIG_EC_BASE_ACPI_DATA); |
| 182 | return !!ec_read(EC_RAM_SIGNED_FW); |
| 183 | } |
Keith Short | 8ef6732 | 2019-05-10 11:49:24 -0600 | [diff] [blame] | 184 | |
Keith Short | f41afde | 2019-05-10 11:52:55 -0600 | [diff] [blame] | 185 | struct err_code_entry { |
| 186 | uint8_t post_code; |
| 187 | enum ec_err_code ec_err; |
| 188 | }; |
| 189 | |
| 190 | /* |
| 191 | * Any post codes not listed in the post_code_err_map[] use default. |
| 192 | */ |
| 193 | static const enum ec_err_code default_ec_err = DLED_ROM; |
| 194 | static const struct err_code_entry post_code_err_map[] = { |
| 195 | { .post_code = POST_RAM_FAILURE, .ec_err = DLED_MEMORY, }, |
| 196 | { .post_code = POST_VIDEO_FAILURE, .ec_err = DLED_PANEL, }, |
| 197 | }; |
| 198 | |
| 199 | /* Records the most recent post code during boot */ |
| 200 | static uint8_t wilco_ec_saved_post_code; |
| 201 | |
| 202 | void wilco_ec_save_post_code(uint8_t post_code) |
Keith Short | 8ef6732 | 2019-05-10 11:49:24 -0600 | [diff] [blame] | 203 | { |
Keith Short | f41afde | 2019-05-10 11:52:55 -0600 | [diff] [blame] | 204 | wilco_ec_saved_post_code = post_code; |
| 205 | } |
| 206 | |
| 207 | /* Send error code to the EC based on last saved post code */ |
| 208 | void die_notify(void) |
| 209 | { |
| 210 | size_t i; |
| 211 | enum ec_err_code err_code = default_ec_err; |
| 212 | |
| 213 | for (i = 0; i < ARRAY_SIZE(post_code_err_map); i++) { |
| 214 | if (post_code_err_map[i].post_code == |
| 215 | wilco_ec_saved_post_code) { |
| 216 | err_code = post_code_err_map[i].ec_err; |
| 217 | break; |
| 218 | } |
| 219 | } |
| 220 | |
| 221 | printk(BIOS_EMERG, "Fatal error: post_code 0x%02x, EC err 0x%02x\n", |
| 222 | wilco_ec_saved_post_code, err_code); |
| 223 | |
| 224 | wilco_ec_mailbox(WILCO_EC_MSG_DEFAULT, KB_ERR_CODE, |
| 225 | &err_code, 1, NULL, 0); |
Keith Short | 8ef6732 | 2019-05-10 11:49:24 -0600 | [diff] [blame] | 226 | } |