Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of the coreboot project. |
| 3 | * |
| 4 | * Copyright (C) 2012 The Chromium OS Authors. All rights reserved. |
| 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. |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 14 | */ |
| 15 | |
| 16 | #include <stdint.h> |
Stefan Reinauer | aaaf689 | 2013-08-29 15:57:11 -0700 | [diff] [blame] | 17 | #include <string.h> |
Furquan Shaikh | bce8bb6 | 2016-11-11 13:57:55 -0800 | [diff] [blame] | 18 | #include <cbmem.h> |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 19 | #include <console/console.h> |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 20 | #include <arch/early_variables.h> |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 21 | #include <assert.h> |
Furquan Shaikh | bce8bb6 | 2016-11-11 13:57:55 -0800 | [diff] [blame] | 22 | #include <bootmode.h> |
| 23 | #include <bootstate.h> |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 24 | #include <delay.h> |
Furquan Shaikh | bce8bb6 | 2016-11-11 13:57:55 -0800 | [diff] [blame] | 25 | #include <elog.h> |
Duncan Laurie | 7cced0d | 2013-06-04 10:03:34 -0700 | [diff] [blame] | 26 | #include <reset.h> |
Simon Glass | 7865932 | 2016-06-10 20:58:24 -0600 | [diff] [blame] | 27 | #include <rtc.h> |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 28 | #include <stdlib.h> |
Philipp Deppenwiese | fea2429 | 2017-10-17 17:02:29 +0200 | [diff] [blame] | 29 | #include <security/vboot/vboot_common.h> |
Daisuke Nojiri | ebb86be | 2018-01-26 17:36:44 -0800 | [diff] [blame] | 30 | #include <timer.h> |
Edward O'Callaghan | b57fef9 | 2014-06-17 20:13:08 +1000 | [diff] [blame] | 31 | |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 32 | #include "chip.h" |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 33 | #include "ec.h" |
| 34 | #include "ec_commands.h" |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 35 | |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 36 | #define INVALID_HCMD 0xFF |
| 37 | |
| 38 | /* |
| 39 | * Map UHEPI masks to non UHEPI commands in order to support old EC FW |
| 40 | * which does not support UHEPI command. |
| 41 | */ |
| 42 | static const struct { |
| 43 | uint8_t set_cmd; |
| 44 | uint8_t clear_cmd; |
| 45 | uint8_t get_cmd; |
| 46 | } event_map[] = { |
| 47 | [EC_HOST_EVENT_MAIN] = { |
| 48 | INVALID_HCMD, EC_CMD_HOST_EVENT_CLEAR, |
| 49 | INVALID_HCMD, |
| 50 | }, |
| 51 | [EC_HOST_EVENT_B] = { |
| 52 | INVALID_HCMD, EC_CMD_HOST_EVENT_CLEAR_B, |
| 53 | EC_CMD_HOST_EVENT_GET_B, |
| 54 | }, |
| 55 | [EC_HOST_EVENT_SCI_MASK] = { |
| 56 | EC_CMD_HOST_EVENT_SET_SCI_MASK, INVALID_HCMD, |
| 57 | EC_CMD_HOST_EVENT_GET_SCI_MASK, |
| 58 | }, |
| 59 | [EC_HOST_EVENT_SMI_MASK] = { |
| 60 | EC_CMD_HOST_EVENT_SET_SMI_MASK, INVALID_HCMD, |
| 61 | EC_CMD_HOST_EVENT_GET_SMI_MASK, |
| 62 | }, |
| 63 | [EC_HOST_EVENT_ALWAYS_REPORT_MASK] = { |
| 64 | INVALID_HCMD, INVALID_HCMD, INVALID_HCMD, |
| 65 | }, |
| 66 | [EC_HOST_EVENT_ACTIVE_WAKE_MASK] = { |
| 67 | EC_CMD_HOST_EVENT_SET_WAKE_MASK, INVALID_HCMD, |
| 68 | EC_CMD_HOST_EVENT_GET_WAKE_MASK, |
| 69 | }, |
Patrick Georgi | a29d234 | 2018-05-02 17:12:49 +0200 | [diff] [blame] | 70 | [EC_HOST_EVENT_LAZY_WAKE_MASK_S0IX] = { |
| 71 | EC_CMD_HOST_EVENT_SET_WAKE_MASK, INVALID_HCMD, |
| 72 | EC_CMD_HOST_EVENT_GET_WAKE_MASK, |
| 73 | }, |
| 74 | [EC_HOST_EVENT_LAZY_WAKE_MASK_S3] = { |
| 75 | EC_CMD_HOST_EVENT_SET_WAKE_MASK, INVALID_HCMD, |
| 76 | EC_CMD_HOST_EVENT_GET_WAKE_MASK, |
| 77 | }, |
| 78 | [EC_HOST_EVENT_LAZY_WAKE_MASK_S5] = { |
| 79 | EC_CMD_HOST_EVENT_SET_WAKE_MASK, INVALID_HCMD, |
| 80 | EC_CMD_HOST_EVENT_GET_WAKE_MASK, |
| 81 | }, |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 82 | }; |
| 83 | |
Furquan Shaikh | bce8bb6 | 2016-11-11 13:57:55 -0800 | [diff] [blame] | 84 | void log_recovery_mode_switch(void) |
| 85 | { |
Furquan Shaikh | 8788fd6 | 2017-11-20 20:28:18 -0800 | [diff] [blame] | 86 | uint64_t *events; |
Furquan Shaikh | bce8bb6 | 2016-11-11 13:57:55 -0800 | [diff] [blame] | 87 | |
| 88 | if (cbmem_find(CBMEM_ID_EC_HOSTEVENT)) |
| 89 | return; |
| 90 | |
| 91 | events = cbmem_add(CBMEM_ID_EC_HOSTEVENT, sizeof(*events)); |
| 92 | if (!events) |
| 93 | return; |
| 94 | |
| 95 | *events = google_chromeec_get_events_b(); |
| 96 | } |
| 97 | |
| 98 | static void google_chromeec_elog_add_recovery_event(void *unused) |
| 99 | { |
Furquan Shaikh | 8788fd6 | 2017-11-20 20:28:18 -0800 | [diff] [blame] | 100 | uint64_t *events = cbmem_find(CBMEM_ID_EC_HOSTEVENT); |
Furquan Shaikh | bce8bb6 | 2016-11-11 13:57:55 -0800 | [diff] [blame] | 101 | uint8_t event_byte = EC_EVENT_KEYBOARD_RECOVERY; |
| 102 | |
| 103 | if (!events) |
| 104 | return; |
| 105 | |
| 106 | if (!(*events & EC_HOST_EVENT_MASK(EC_HOST_EVENT_KEYBOARD_RECOVERY))) |
| 107 | return; |
| 108 | |
| 109 | if (*events & |
| 110 | EC_HOST_EVENT_MASK(EC_HOST_EVENT_KEYBOARD_RECOVERY_HW_REINIT)) |
| 111 | event_byte = EC_EVENT_KEYBOARD_RECOVERY_HWREINIT; |
| 112 | |
| 113 | elog_add_event_byte(ELOG_TYPE_EC_EVENT, event_byte); |
| 114 | } |
| 115 | |
| 116 | BOOT_STATE_INIT_ENTRY(BS_WRITE_TABLES, BS_ON_ENTRY, |
| 117 | google_chromeec_elog_add_recovery_event, NULL); |
| 118 | |
Hung-Te Lin | 6bfbb33 | 2013-04-15 18:27:24 +0800 | [diff] [blame] | 119 | uint8_t google_chromeec_calc_checksum(const uint8_t *data, int size) |
| 120 | { |
| 121 | int csum; |
| 122 | |
| 123 | for (csum = 0; size > 0; data++, size--) |
| 124 | csum += *data; |
| 125 | return (uint8_t)(csum & 0xff); |
| 126 | } |
| 127 | |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 128 | int google_chromeec_kbbacklight(int percent) |
| 129 | { |
| 130 | struct chromeec_command cec_cmd; |
| 131 | struct ec_params_pwm_set_keyboard_backlight cmd_backlight; |
| 132 | struct ec_response_pwm_get_keyboard_backlight rsp_backlight; |
| 133 | /* if they were dumb, help them out */ |
| 134 | percent = percent % 101; |
| 135 | cec_cmd.cmd_code = EC_CMD_PWM_SET_KEYBOARD_BACKLIGHT; |
| 136 | cec_cmd.cmd_version = 0; |
| 137 | cmd_backlight.percent = percent; |
| 138 | cec_cmd.cmd_data_in = &cmd_backlight; |
| 139 | cec_cmd.cmd_data_out = &rsp_backlight; |
| 140 | cec_cmd.cmd_size_in = sizeof(cmd_backlight); |
| 141 | cec_cmd.cmd_size_out = sizeof(rsp_backlight); |
Duncan Laurie | fc0f517 | 2014-09-18 12:54:02 -0700 | [diff] [blame] | 142 | cec_cmd.cmd_dev_index = 0; |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 143 | google_chromeec_command(&cec_cmd); |
| 144 | printk(BIOS_DEBUG, "Google Chrome set keyboard backlight: %x status (%x)\n", |
| 145 | rsp_backlight.percent, cec_cmd.cmd_code); |
| 146 | return cec_cmd.cmd_code; |
| 147 | |
| 148 | } |
| 149 | |
| 150 | void google_chromeec_post(u8 postcode) |
| 151 | { |
| 152 | /* backlight is a percent. postcode is a u8. |
| 153 | * Convert the u8 to %. |
| 154 | */ |
| 155 | postcode = (postcode/4) + (postcode/8); |
| 156 | google_chromeec_kbbacklight(postcode); |
| 157 | } |
| 158 | |
| 159 | /* |
| 160 | * Query the EC for specified mask indicating enabled events. |
| 161 | * The EC maintains separate event masks for SMI, SCI and WAKE. |
| 162 | */ |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 163 | static int google_chromeec_uhepi_cmd(uint8_t mask, uint8_t action, |
| 164 | uint64_t *value) |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 165 | { |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 166 | int ret; |
| 167 | struct ec_params_host_event req; |
| 168 | struct ec_response_host_event rsp; |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 169 | struct chromeec_command cmd; |
| 170 | |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 171 | req.action = action; |
| 172 | req.mask_type = mask; |
| 173 | if (action != EC_HOST_EVENT_GET) |
| 174 | req.value = *value; |
| 175 | else |
| 176 | *value = 0; |
| 177 | cmd.cmd_code = EC_CMD_HOST_EVENT; |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 178 | cmd.cmd_version = 0; |
| 179 | cmd.cmd_data_in = &req; |
| 180 | cmd.cmd_size_in = sizeof(req); |
| 181 | cmd.cmd_data_out = &rsp; |
| 182 | cmd.cmd_size_out = sizeof(rsp); |
Duncan Laurie | fc0f517 | 2014-09-18 12:54:02 -0700 | [diff] [blame] | 183 | cmd.cmd_dev_index = 0; |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 184 | |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 185 | ret = google_chromeec_command(&cmd); |
| 186 | |
| 187 | if (action != EC_HOST_EVENT_GET) |
| 188 | return ret; |
| 189 | if (ret == 0) |
| 190 | *value = rsp.value; |
| 191 | return ret; |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 192 | } |
| 193 | |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 194 | static int google_chromeec_handle_non_uhepi_cmd(uint8_t hcmd, uint8_t action, |
| 195 | uint64_t *value) |
Sheng-Liang Song | 1d6560f | 2014-04-30 15:46:45 -0700 | [diff] [blame] | 196 | { |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 197 | int ret = -1; |
Sheng-Liang Song | 1d6560f | 2014-04-30 15:46:45 -0700 | [diff] [blame] | 198 | struct ec_params_host_event_mask req; |
| 199 | struct ec_response_host_event_mask rsp; |
| 200 | struct chromeec_command cmd; |
| 201 | |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 202 | if (hcmd == INVALID_HCMD) |
| 203 | return ret; |
| 204 | |
| 205 | if (action != EC_HOST_EVENT_GET) |
| 206 | req.mask = (uint32_t)*value; |
| 207 | else |
| 208 | *value = 0; |
| 209 | |
| 210 | cmd.cmd_code = hcmd; |
Sheng-Liang Song | 1d6560f | 2014-04-30 15:46:45 -0700 | [diff] [blame] | 211 | cmd.cmd_version = 0; |
| 212 | cmd.cmd_data_in = &req; |
| 213 | cmd.cmd_size_in = sizeof(req); |
| 214 | cmd.cmd_data_out = &rsp; |
| 215 | cmd.cmd_size_out = sizeof(rsp); |
Duncan Laurie | fc0f517 | 2014-09-18 12:54:02 -0700 | [diff] [blame] | 216 | cmd.cmd_dev_index = 0; |
Sheng-Liang Song | 1d6560f | 2014-04-30 15:46:45 -0700 | [diff] [blame] | 217 | |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 218 | ret = google_chromeec_command(&cmd); |
| 219 | |
| 220 | if (action != EC_HOST_EVENT_GET) |
| 221 | return ret; |
| 222 | if (ret == 0) |
| 223 | *value = rsp.mask; |
| 224 | |
| 225 | return ret; |
| 226 | } |
| 227 | |
| 228 | bool google_chromeec_is_uhepi_supported(void) |
| 229 | { |
| 230 | #define UHEPI_SUPPORTED 1 |
| 231 | #define UHEPI_NOT_SUPPORTED 2 |
| 232 | |
| 233 | static int uhepi_support CAR_GLOBAL; |
| 234 | |
| 235 | if (!uhepi_support) { |
| 236 | uhepi_support = google_chromeec_check_feature |
Matt DeVillier | 4132893 | 2018-03-04 00:05:12 -0600 | [diff] [blame] | 237 | (EC_FEATURE_UNIFIED_WAKE_MASKS) > 0 ? UHEPI_SUPPORTED : |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 238 | UHEPI_NOT_SUPPORTED; |
| 239 | printk(BIOS_DEBUG, "Chrome EC: UHEPI %s\n", |
| 240 | uhepi_support == UHEPI_SUPPORTED ? |
| 241 | "supported" : "not supported"); |
| 242 | } |
| 243 | return uhepi_support == UHEPI_SUPPORTED; |
| 244 | } |
| 245 | |
| 246 | static uint64_t google_chromeec_get_mask(u8 type) |
| 247 | { |
| 248 | u64 value = 0; |
| 249 | |
| 250 | if (google_chromeec_is_uhepi_supported()) { |
| 251 | google_chromeec_uhepi_cmd(type, EC_HOST_EVENT_GET, &value); |
| 252 | } else { |
| 253 | assert(type < ARRAY_SIZE(event_map)); |
| 254 | google_chromeec_handle_non_uhepi_cmd( |
| 255 | event_map[type].get_cmd, |
| 256 | EC_HOST_EVENT_GET, &value); |
| 257 | } |
| 258 | return value; |
| 259 | } |
| 260 | static int google_chromeec_clear_mask(u8 type, u64 mask) |
| 261 | { |
| 262 | if (google_chromeec_is_uhepi_supported()) |
| 263 | return google_chromeec_uhepi_cmd(type, |
| 264 | EC_HOST_EVENT_CLEAR, &mask); |
| 265 | |
| 266 | assert(type < ARRAY_SIZE(event_map)); |
| 267 | return google_chromeec_handle_non_uhepi_cmd( |
| 268 | event_map[type].clear_cmd, |
| 269 | EC_HOST_EVENT_CLEAR, &mask); |
| 270 | } |
| 271 | static int __unused google_chromeec_set_mask(u8 type, u64 mask) |
| 272 | { |
| 273 | if (google_chromeec_is_uhepi_supported()) |
| 274 | return google_chromeec_uhepi_cmd(type, |
| 275 | EC_HOST_EVENT_SET, &mask); |
| 276 | |
| 277 | assert(type < ARRAY_SIZE(event_map)); |
| 278 | return google_chromeec_handle_non_uhepi_cmd( |
| 279 | event_map[type].set_cmd, |
| 280 | EC_HOST_EVENT_SET, &mask); |
| 281 | } |
| 282 | |
| 283 | static int google_chromeec_set_s3_lazy_wake_mask(uint64_t mask) |
| 284 | { |
Furquan Shaikh | 8389fe6 | 2018-02-23 16:07:25 -0800 | [diff] [blame] | 285 | printk(BIOS_DEBUG, "Chrome EC: Set S3 LAZY WAKE mask to 0x%016llx\n", |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 286 | mask); |
| 287 | return google_chromeec_set_mask |
| 288 | (EC_HOST_EVENT_LAZY_WAKE_MASK_S3, mask); |
| 289 | } |
| 290 | |
| 291 | static int google_chromeec_set_s5_lazy_wake_mask(uint64_t mask) |
| 292 | { |
Furquan Shaikh | 8389fe6 | 2018-02-23 16:07:25 -0800 | [diff] [blame] | 293 | printk(BIOS_DEBUG, "Chrome EC: Set S5 LAZY WAKE mask to 0x%016llx\n", |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 294 | mask); |
| 295 | return google_chromeec_set_mask |
| 296 | (EC_HOST_EVENT_LAZY_WAKE_MASK_S5, mask); |
| 297 | } |
| 298 | |
| 299 | static int google_chromeec_set_s0ix_lazy_wake_mask(uint64_t mask) |
| 300 | { |
Furquan Shaikh | 8389fe6 | 2018-02-23 16:07:25 -0800 | [diff] [blame] | 301 | printk(BIOS_DEBUG, "Chrome EC: Set S0iX LAZY WAKE mask to 0x%016llx\n", |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 302 | mask); |
| 303 | return google_chromeec_set_mask |
| 304 | (EC_HOST_EVENT_LAZY_WAKE_MASK_S0IX, mask); |
| 305 | } |
| 306 | static void google_chromeec_set_lazy_wake_masks(uint64_t s5_mask, |
| 307 | uint64_t s3_mask, uint64_t s0ix_mask) |
| 308 | { |
| 309 | if (google_chromeec_set_s5_lazy_wake_mask(s5_mask)) |
| 310 | printk(BIOS_DEBUG, "Error: Set S5 LAZY WAKE mask failed\n"); |
| 311 | if (google_chromeec_set_s3_lazy_wake_mask(s3_mask)) |
| 312 | printk(BIOS_DEBUG, "Error: Set S3 LAZY WAKE mask failed\n"); |
Paul Moy | 88900dc | 2018-09-14 15:24:23 -0600 | [diff] [blame] | 313 | /* |
| 314 | * Make sure S0Ix is supported before trying to set up the EC's |
| 315 | * S0Ix lazy wake mask. |
| 316 | */ |
| 317 | if (s0ix_mask && google_chromeec_set_s0ix_lazy_wake_mask(s0ix_mask)) |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 318 | printk(BIOS_DEBUG, "Error: Set S0iX LAZY WAKE mask failed\n"); |
Sheng-Liang Song | 1d6560f | 2014-04-30 15:46:45 -0700 | [diff] [blame] | 319 | } |
| 320 | |
Furquan Shaikh | 8788fd6 | 2017-11-20 20:28:18 -0800 | [diff] [blame] | 321 | uint64_t google_chromeec_get_events_b(void) |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 322 | { |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 323 | return google_chromeec_get_mask(EC_HOST_EVENT_B); |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 324 | } |
| 325 | |
Furquan Shaikh | 8788fd6 | 2017-11-20 20:28:18 -0800 | [diff] [blame] | 326 | int google_chromeec_clear_events_b(uint64_t mask) |
Sheng-Liang Song | 1d6560f | 2014-04-30 15:46:45 -0700 | [diff] [blame] | 327 | { |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 328 | printk(BIOS_DEBUG, |
| 329 | "Chrome EC: clear events_b mask to 0x%016llx\n", mask); |
| 330 | return google_chromeec_clear_mask(EC_HOST_EVENT_B, mask); |
Sheng-Liang Song | 1d6560f | 2014-04-30 15:46:45 -0700 | [diff] [blame] | 331 | } |
| 332 | |
Furquan Shaikh | e01bf64 | 2017-10-13 10:59:51 -0700 | [diff] [blame] | 333 | int google_chromeec_get_mkbp_event(struct ec_response_get_next_event *event) |
| 334 | { |
| 335 | struct chromeec_command cmd; |
| 336 | |
| 337 | cmd.cmd_code = EC_CMD_GET_NEXT_EVENT; |
| 338 | cmd.cmd_version = 0; |
| 339 | cmd.cmd_data_in = NULL; |
| 340 | cmd.cmd_size_in = 0; |
| 341 | cmd.cmd_data_out = event; |
| 342 | cmd.cmd_size_out = sizeof(*event); |
| 343 | cmd.cmd_dev_index = 0; |
| 344 | |
| 345 | return google_chromeec_command(&cmd); |
| 346 | } |
| 347 | |
Duncan Laurie | 7378a17 | 2017-06-29 23:52:17 -0700 | [diff] [blame] | 348 | /* Get the current device event mask */ |
Furquan Shaikh | 8788fd6 | 2017-11-20 20:28:18 -0800 | [diff] [blame] | 349 | uint64_t google_chromeec_get_device_enabled_events(void) |
Duncan Laurie | 7378a17 | 2017-06-29 23:52:17 -0700 | [diff] [blame] | 350 | { |
| 351 | struct ec_params_device_event req; |
| 352 | struct ec_response_device_event rsp; |
| 353 | struct chromeec_command cmd; |
| 354 | |
| 355 | req.param = EC_DEVICE_EVENT_PARAM_GET_ENABLED_EVENTS; |
| 356 | cmd.cmd_code = EC_CMD_DEVICE_EVENT; |
| 357 | cmd.cmd_version = 0; |
| 358 | cmd.cmd_data_in = &req; |
| 359 | cmd.cmd_size_in = sizeof(req); |
| 360 | cmd.cmd_data_out = &rsp; |
| 361 | cmd.cmd_size_out = sizeof(rsp); |
| 362 | cmd.cmd_dev_index = 0; |
| 363 | |
| 364 | if (google_chromeec_command(&cmd) == 0) |
| 365 | return rsp.event_mask; |
| 366 | return 0; |
| 367 | } |
| 368 | |
| 369 | /* Set the current device event mask */ |
Furquan Shaikh | 8788fd6 | 2017-11-20 20:28:18 -0800 | [diff] [blame] | 370 | int google_chromeec_set_device_enabled_events(uint64_t mask) |
Duncan Laurie | 7378a17 | 2017-06-29 23:52:17 -0700 | [diff] [blame] | 371 | { |
| 372 | struct ec_params_device_event req; |
| 373 | struct ec_response_device_event rsp; |
| 374 | struct chromeec_command cmd; |
| 375 | |
Furquan Shaikh | 8788fd6 | 2017-11-20 20:28:18 -0800 | [diff] [blame] | 376 | req.event_mask = (uint32_t)mask; |
Duncan Laurie | 7378a17 | 2017-06-29 23:52:17 -0700 | [diff] [blame] | 377 | req.param = EC_DEVICE_EVENT_PARAM_SET_ENABLED_EVENTS; |
| 378 | cmd.cmd_code = EC_CMD_DEVICE_EVENT; |
| 379 | cmd.cmd_version = 0; |
| 380 | cmd.cmd_data_in = &req; |
| 381 | cmd.cmd_size_in = sizeof(req); |
| 382 | cmd.cmd_data_out = &rsp; |
| 383 | cmd.cmd_size_out = sizeof(rsp); |
| 384 | cmd.cmd_dev_index = 0; |
| 385 | |
| 386 | return google_chromeec_command(&cmd); |
| 387 | } |
| 388 | |
| 389 | /* Read and clear pending device events */ |
Furquan Shaikh | 8788fd6 | 2017-11-20 20:28:18 -0800 | [diff] [blame] | 390 | uint64_t google_chromeec_get_device_current_events(void) |
Duncan Laurie | 7378a17 | 2017-06-29 23:52:17 -0700 | [diff] [blame] | 391 | { |
| 392 | struct ec_params_device_event req; |
| 393 | struct ec_response_device_event rsp; |
| 394 | struct chromeec_command cmd; |
| 395 | |
| 396 | req.param = EC_DEVICE_EVENT_PARAM_GET_CURRENT_EVENTS; |
| 397 | cmd.cmd_code = EC_CMD_DEVICE_EVENT; |
| 398 | cmd.cmd_version = 0; |
| 399 | cmd.cmd_data_in = &req; |
| 400 | cmd.cmd_size_in = sizeof(req); |
| 401 | cmd.cmd_data_out = &rsp; |
| 402 | cmd.cmd_size_out = sizeof(rsp); |
| 403 | cmd.cmd_dev_index = 0; |
| 404 | |
| 405 | if (google_chromeec_command(&cmd) == 0) |
| 406 | return rsp.event_mask; |
| 407 | return 0; |
| 408 | } |
| 409 | |
Furquan Shaikh | 8788fd6 | 2017-11-20 20:28:18 -0800 | [diff] [blame] | 410 | static void google_chromeec_log_device_events(uint64_t mask) |
Duncan Laurie | 7378a17 | 2017-06-29 23:52:17 -0700 | [diff] [blame] | 411 | { |
Furquan Shaikh | 8788fd6 | 2017-11-20 20:28:18 -0800 | [diff] [blame] | 412 | uint64_t events; |
Duncan Laurie | 7378a17 | 2017-06-29 23:52:17 -0700 | [diff] [blame] | 413 | int i; |
| 414 | |
Julius Werner | cd49cce | 2019-03-05 16:53:33 -0800 | [diff] [blame] | 415 | if (!CONFIG(ELOG) || !mask) |
Duncan Laurie | 7378a17 | 2017-06-29 23:52:17 -0700 | [diff] [blame] | 416 | return; |
| 417 | |
| 418 | if (google_chromeec_check_feature(EC_FEATURE_DEVICE_EVENT) != 1) |
| 419 | return; |
| 420 | |
| 421 | events = google_chromeec_get_device_current_events() & mask; |
Furquan Shaikh | 8788fd6 | 2017-11-20 20:28:18 -0800 | [diff] [blame] | 422 | printk(BIOS_INFO, "EC Device Events: 0x%016llx\n", events); |
Duncan Laurie | 7378a17 | 2017-06-29 23:52:17 -0700 | [diff] [blame] | 423 | |
| 424 | for (i = 0; i < sizeof(events) * 8; i++) { |
| 425 | if (EC_DEVICE_EVENT_MASK(i) & events) |
| 426 | elog_add_event_byte(ELOG_TYPE_EC_DEVICE_EVENT, i); |
| 427 | } |
| 428 | } |
| 429 | |
Furquan Shaikh | 8788fd6 | 2017-11-20 20:28:18 -0800 | [diff] [blame] | 430 | void google_chromeec_log_events(uint64_t mask) |
Furquan Shaikh | 2749c52 | 2017-10-04 14:01:41 -0700 | [diff] [blame] | 431 | { |
| 432 | u8 event; |
Furquan Shaikh | 8788fd6 | 2017-11-20 20:28:18 -0800 | [diff] [blame] | 433 | uint64_t wake_mask; |
Furquan Shaikh | 1432cbc | 2017-10-13 11:31:35 -0700 | [diff] [blame] | 434 | bool restore_wake_mask = false; |
Furquan Shaikh | 2749c52 | 2017-10-04 14:01:41 -0700 | [diff] [blame] | 435 | |
Julius Werner | cd49cce | 2019-03-05 16:53:33 -0800 | [diff] [blame] | 436 | if (!CONFIG(ELOG)) |
Furquan Shaikh | 2749c52 | 2017-10-04 14:01:41 -0700 | [diff] [blame] | 437 | return; |
| 438 | |
Furquan Shaikh | 1432cbc | 2017-10-13 11:31:35 -0700 | [diff] [blame] | 439 | /* |
| 440 | * If the EC supports unified wake masks, then there is no need to set |
| 441 | * wake mask before reading out the host events. |
| 442 | */ |
| 443 | if (google_chromeec_check_feature(EC_FEATURE_UNIFIED_WAKE_MASKS) != 1) { |
| 444 | wake_mask = google_chromeec_get_wake_mask(); |
| 445 | google_chromeec_set_wake_mask(mask); |
| 446 | restore_wake_mask = true; |
| 447 | } |
Furquan Shaikh | 2749c52 | 2017-10-04 14:01:41 -0700 | [diff] [blame] | 448 | |
| 449 | while ((event = google_chromeec_get_event()) != 0) { |
| 450 | if (EC_HOST_EVENT_MASK(event) & mask) |
| 451 | elog_add_event_byte(ELOG_TYPE_EC_EVENT, event); |
| 452 | } |
| 453 | |
Furquan Shaikh | 1432cbc | 2017-10-13 11:31:35 -0700 | [diff] [blame] | 454 | if (restore_wake_mask) |
| 455 | google_chromeec_set_wake_mask(wake_mask); |
Furquan Shaikh | 2749c52 | 2017-10-04 14:01:41 -0700 | [diff] [blame] | 456 | } |
| 457 | |
| 458 | void google_chromeec_events_init(const struct google_chromeec_event_info *info, |
| 459 | bool is_s3_wakeup) |
| 460 | { |
| 461 | if (is_s3_wakeup) { |
| 462 | google_chromeec_log_events(info->log_events | |
| 463 | info->s3_wake_events); |
| 464 | |
| 465 | /* Log and clear device events that may wake the system. */ |
| 466 | google_chromeec_log_device_events(info->s3_device_events); |
| 467 | |
| 468 | /* Disable SMI and wake events. */ |
| 469 | google_chromeec_set_smi_mask(0); |
| 470 | |
| 471 | /* Clear pending events. */ |
| 472 | while (google_chromeec_get_event() != 0) |
| 473 | ; |
| 474 | |
| 475 | /* Restore SCI event mask. */ |
| 476 | google_chromeec_set_sci_mask(info->sci_events); |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 477 | |
| 478 | } else { |
Furquan Shaikh | 1a5b7c6 | 2018-05-30 11:51:23 -0700 | [diff] [blame] | 479 | google_chromeec_set_smi_mask(info->smi_events); |
| 480 | |
Furquan Shaikh | 2749c52 | 2017-10-04 14:01:41 -0700 | [diff] [blame] | 481 | google_chromeec_log_events(info->log_events | |
| 482 | info->s5_wake_events); |
Furquan Shaikh | 1a5b7c6 | 2018-05-30 11:51:23 -0700 | [diff] [blame] | 483 | |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 484 | if (google_chromeec_is_uhepi_supported()) |
| 485 | google_chromeec_set_lazy_wake_masks |
| 486 | (info->s5_wake_events, |
| 487 | info->s3_wake_events, |
| 488 | info->s0ix_wake_events); |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 489 | } |
Furquan Shaikh | 2749c52 | 2017-10-04 14:01:41 -0700 | [diff] [blame] | 490 | |
| 491 | /* Clear wake event mask. */ |
| 492 | google_chromeec_set_wake_mask(0); |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 493 | |
Furquan Shaikh | 2749c52 | 2017-10-04 14:01:41 -0700 | [diff] [blame] | 494 | } |
| 495 | |
Duncan Laurie | e2cea4f | 2015-12-01 19:14:09 -0800 | [diff] [blame] | 496 | int google_chromeec_check_feature(int feature) |
| 497 | { |
| 498 | struct chromeec_command cmd; |
| 499 | struct ec_response_get_features r; |
| 500 | |
| 501 | cmd.cmd_code = EC_CMD_GET_FEATURES; |
| 502 | cmd.cmd_version = 0; |
| 503 | cmd.cmd_size_in = 0; |
| 504 | cmd.cmd_data_out = &r; |
| 505 | cmd.cmd_size_out = sizeof(r); |
| 506 | cmd.cmd_dev_index = 0; |
| 507 | |
| 508 | if (google_chromeec_command(&cmd) != 0) |
| 509 | return -1; |
| 510 | |
| 511 | if (feature >= 8 * sizeof(r.flags)) |
| 512 | return -1; |
| 513 | |
| 514 | return r.flags[feature / 32] & EC_FEATURE_MASK_0(feature); |
| 515 | } |
| 516 | |
Kevin Chiu | e2bb059 | 2017-09-12 09:13:41 +0800 | [diff] [blame] | 517 | int google_chromeec_set_sku_id(u32 skuid) |
| 518 | { |
| 519 | struct chromeec_command cmd; |
| 520 | struct ec_sku_id_info set_skuid = { |
| 521 | .sku_id = skuid |
| 522 | }; |
| 523 | |
| 524 | cmd.cmd_code = EC_CMD_SET_SKU_ID; |
| 525 | cmd.cmd_version = 0; |
| 526 | cmd.cmd_size_in = sizeof(set_skuid); |
| 527 | cmd.cmd_data_in = &set_skuid; |
| 528 | cmd.cmd_data_out = NULL; |
| 529 | cmd.cmd_size_out = 0; |
| 530 | cmd.cmd_dev_index = 0; |
| 531 | |
| 532 | if (google_chromeec_command(&cmd) != 0) |
| 533 | return -1; |
| 534 | |
| 535 | return 0; |
| 536 | } |
| 537 | |
Julius Werner | cd49cce | 2019-03-05 16:53:33 -0800 | [diff] [blame] | 538 | #if CONFIG(EC_GOOGLE_CHROMEEC_RTC) |
Simon Glass | 7865932 | 2016-06-10 20:58:24 -0600 | [diff] [blame] | 539 | int rtc_get(struct rtc_time *time) |
| 540 | { |
| 541 | struct chromeec_command cmd; |
| 542 | struct ec_response_rtc r; |
| 543 | |
| 544 | cmd.cmd_code = EC_CMD_RTC_GET_VALUE; |
| 545 | cmd.cmd_version = 0; |
| 546 | cmd.cmd_size_in = 0; |
| 547 | cmd.cmd_data_out = &r; |
| 548 | cmd.cmd_size_out = sizeof(r); |
| 549 | cmd.cmd_dev_index = 0; |
| 550 | |
| 551 | if (google_chromeec_command(&cmd) != 0) |
| 552 | return -1; |
| 553 | |
| 554 | return rtc_to_tm(r.time, time); |
| 555 | } |
| 556 | #endif |
| 557 | |
Aaron Durbin | e68d22f | 2017-05-04 12:32:52 -0500 | [diff] [blame] | 558 | int google_chromeec_reboot(int dev_idx, enum ec_reboot_cmd type, uint8_t flags) |
| 559 | { |
| 560 | struct ec_params_reboot_ec reboot_ec = { |
| 561 | .cmd = type, |
| 562 | .flags = flags, |
| 563 | }; |
| 564 | struct ec_response_get_version cec_resp = { }; |
| 565 | struct chromeec_command cec_cmd = { |
| 566 | .cmd_code = EC_CMD_REBOOT_EC, |
| 567 | .cmd_version = 0, |
| 568 | .cmd_data_in = &reboot_ec, |
| 569 | .cmd_data_out = &cec_resp, |
| 570 | .cmd_size_in = sizeof(reboot_ec), |
| 571 | .cmd_size_out = 0, /* ignore response, if any */ |
| 572 | .cmd_dev_index = dev_idx, |
| 573 | }; |
| 574 | |
| 575 | return google_chromeec_command(&cec_cmd); |
| 576 | } |
| 577 | |
Jonathan Brandmeyer | 6bffc5c | 2018-07-23 16:30:44 -0600 | [diff] [blame] | 578 | static int cbi_get_uint32(uint32_t *id, uint32_t tag) |
Daisuke Nojiri | 07f9748f | 2018-02-01 07:46:02 -0800 | [diff] [blame] | 579 | { |
| 580 | struct chromeec_command cmd; |
| 581 | struct ec_params_get_cbi p; |
Zhuohao Lee | 7824d9b | 2018-03-30 10:18:04 +0800 | [diff] [blame] | 582 | uint32_t r = 0; |
Daisuke Nojiri | 07f9748f | 2018-02-01 07:46:02 -0800 | [diff] [blame] | 583 | int rv; |
| 584 | |
Jonathan Brandmeyer | 6bffc5c | 2018-07-23 16:30:44 -0600 | [diff] [blame] | 585 | p.tag = tag; |
Daisuke Nojiri | 07f9748f | 2018-02-01 07:46:02 -0800 | [diff] [blame] | 586 | |
| 587 | cmd.cmd_code = EC_CMD_GET_CROS_BOARD_INFO; |
| 588 | cmd.cmd_version = 0; |
| 589 | cmd.cmd_data_in = &p; |
| 590 | cmd.cmd_data_out = &r; |
| 591 | cmd.cmd_size_in = sizeof(p); |
| 592 | cmd.cmd_size_out = sizeof(r); |
| 593 | cmd.cmd_dev_index = 0; |
| 594 | |
| 595 | rv = google_chromeec_command(&cmd); |
YH Lin | 40f6542 | 2019-02-26 09:56:06 -0800 | [diff] [blame] | 596 | if (rv != 0) |
Daisuke Nojiri | 07f9748f | 2018-02-01 07:46:02 -0800 | [diff] [blame] | 597 | return rv; |
| 598 | *id = r; |
| 599 | return 0; |
| 600 | } |
| 601 | |
| 602 | int google_chromeec_cbi_get_sku_id(uint32_t *id) |
| 603 | { |
Daisuke Nojiri | f984a05 | 2018-02-15 12:38:15 -0800 | [diff] [blame] | 604 | return cbi_get_uint32(id, CBI_TAG_SKU_ID); |
Daisuke Nojiri | 07f9748f | 2018-02-01 07:46:02 -0800 | [diff] [blame] | 605 | } |
| 606 | |
| 607 | int google_chromeec_cbi_get_oem_id(uint32_t *id) |
| 608 | { |
Daisuke Nojiri | f984a05 | 2018-02-15 12:38:15 -0800 | [diff] [blame] | 609 | return cbi_get_uint32(id, CBI_TAG_OEM_ID); |
Daisuke Nojiri | 07f9748f | 2018-02-01 07:46:02 -0800 | [diff] [blame] | 610 | } |
| 611 | |
Wisley Chen | c1efec7 | 2018-11-06 09:28:23 +0800 | [diff] [blame] | 612 | static int cbi_get_string(char *buf, size_t bufsize, uint32_t tag) |
Aaron Durbin | b388c0e | 2018-08-07 12:24:21 -0600 | [diff] [blame] | 613 | { |
| 614 | struct ec_params_get_cbi p = { |
Wisley Chen | c1efec7 | 2018-11-06 09:28:23 +0800 | [diff] [blame] | 615 | .tag = tag, |
Aaron Durbin | b388c0e | 2018-08-07 12:24:21 -0600 | [diff] [blame] | 616 | }; |
| 617 | struct chromeec_command cmd = { |
| 618 | .cmd_code = EC_CMD_GET_CROS_BOARD_INFO, |
| 619 | .cmd_version = 0, |
| 620 | .cmd_data_in = &p, |
| 621 | .cmd_data_out = buf, |
| 622 | .cmd_size_in = sizeof(p), |
| 623 | .cmd_size_out = bufsize, |
| 624 | }; |
| 625 | int rv; |
| 626 | |
| 627 | rv = google_chromeec_command(&cmd); |
YH Lin | 40f6542 | 2019-02-26 09:56:06 -0800 | [diff] [blame] | 628 | if (rv != 0) |
Aaron Durbin | b388c0e | 2018-08-07 12:24:21 -0600 | [diff] [blame] | 629 | return rv; |
| 630 | |
| 631 | /* Ensure NUL termination. */ |
| 632 | buf[bufsize - 1] = '\0'; |
| 633 | |
| 634 | return 0; |
| 635 | } |
| 636 | |
Wisley Chen | c1efec7 | 2018-11-06 09:28:23 +0800 | [diff] [blame] | 637 | int google_chromeec_cbi_get_dram_part_num(char *buf, size_t bufsize) |
| 638 | { |
| 639 | return cbi_get_string(buf, bufsize, CBI_TAG_DRAM_PART_NUM); |
| 640 | } |
| 641 | |
| 642 | int google_chromeec_cbi_get_oem_name(char *buf, size_t bufsize) |
| 643 | { |
| 644 | return cbi_get_string(buf, bufsize, CBI_TAG_OEM_NAME); |
| 645 | } |
| 646 | |
Karthikeyan Ramasubramanian | c80ff84 | 2018-09-17 16:19:34 -0600 | [diff] [blame] | 647 | int google_chromeec_get_board_version(uint32_t *version) |
Shawn Nematbakhsh | d0a6a38 | 2013-07-08 14:18:01 -0700 | [diff] [blame] | 648 | { |
| 649 | struct chromeec_command cmd; |
| 650 | struct ec_response_board_version board_v; |
| 651 | |
| 652 | cmd.cmd_code = EC_CMD_GET_BOARD_VERSION; |
| 653 | cmd.cmd_version = 0; |
| 654 | cmd.cmd_size_in = 0; |
| 655 | cmd.cmd_size_out = sizeof(board_v); |
| 656 | cmd.cmd_data_out = &board_v; |
Duncan Laurie | fc0f517 | 2014-09-18 12:54:02 -0700 | [diff] [blame] | 657 | cmd.cmd_dev_index = 0; |
Shawn Nematbakhsh | d0a6a38 | 2013-07-08 14:18:01 -0700 | [diff] [blame] | 658 | |
Karthikeyan Ramasubramanian | c80ff84 | 2018-09-17 16:19:34 -0600 | [diff] [blame] | 659 | if (google_chromeec_command(&cmd)) |
| 660 | return -1; |
Shawn Nematbakhsh | d0a6a38 | 2013-07-08 14:18:01 -0700 | [diff] [blame] | 661 | |
Karthikeyan Ramasubramanian | c80ff84 | 2018-09-17 16:19:34 -0600 | [diff] [blame] | 662 | *version = board_v.board_version; |
| 663 | return 0; |
Shawn Nematbakhsh | d0a6a38 | 2013-07-08 14:18:01 -0700 | [diff] [blame] | 664 | } |
Stefan Reinauer | aaaf689 | 2013-08-29 15:57:11 -0700 | [diff] [blame] | 665 | |
Patrick Georgi | 69206d9 | 2017-07-31 14:20:07 +0200 | [diff] [blame] | 666 | u32 google_chromeec_get_sku_id(void) |
| 667 | { |
| 668 | struct chromeec_command cmd; |
Kevin Chiu | e2bb059 | 2017-09-12 09:13:41 +0800 | [diff] [blame] | 669 | struct ec_sku_id_info sku_v; |
Patrick Georgi | 69206d9 | 2017-07-31 14:20:07 +0200 | [diff] [blame] | 670 | |
| 671 | cmd.cmd_code = EC_CMD_GET_SKU_ID; |
| 672 | cmd.cmd_version = 0; |
| 673 | cmd.cmd_size_in = 0; |
| 674 | cmd.cmd_size_out = sizeof(sku_v); |
| 675 | cmd.cmd_data_out = &sku_v; |
| 676 | cmd.cmd_dev_index = 0; |
| 677 | |
| 678 | if (google_chromeec_command(&cmd) != 0) |
| 679 | return 0; |
| 680 | |
| 681 | return sku_v.sku_id; |
| 682 | } |
| 683 | |
Stefan Reinauer | aaaf689 | 2013-08-29 15:57:11 -0700 | [diff] [blame] | 684 | int google_chromeec_vbnv_context(int is_read, uint8_t *data, int len) |
| 685 | { |
| 686 | struct chromeec_command cec_cmd; |
| 687 | struct ec_params_vbnvcontext cmd_vbnvcontext; |
| 688 | struct ec_response_vbnvcontext rsp_vbnvcontext; |
Julius Werner | 02e847b | 2015-02-20 13:36:11 -0800 | [diff] [blame] | 689 | int retries = 3; |
Stefan Reinauer | aaaf689 | 2013-08-29 15:57:11 -0700 | [diff] [blame] | 690 | |
| 691 | if (len != EC_VBNV_BLOCK_SIZE) |
| 692 | return -1; |
| 693 | |
Patrick Georgi | f506031 | 2015-10-13 22:14:22 +0200 | [diff] [blame] | 694 | retry: |
Stefan Reinauer | aaaf689 | 2013-08-29 15:57:11 -0700 | [diff] [blame] | 695 | cec_cmd.cmd_code = EC_CMD_VBNV_CONTEXT; |
| 696 | cec_cmd.cmd_version = EC_VER_VBNV_CONTEXT; |
| 697 | cec_cmd.cmd_data_in = &cmd_vbnvcontext; |
| 698 | cec_cmd.cmd_data_out = &rsp_vbnvcontext; |
| 699 | cec_cmd.cmd_size_in = sizeof(cmd_vbnvcontext); |
Aaron Durbin | 3e49738 | 2014-08-06 14:28:52 -0500 | [diff] [blame] | 700 | cec_cmd.cmd_size_out = is_read ? sizeof(rsp_vbnvcontext) : 0; |
Duncan Laurie | fc0f517 | 2014-09-18 12:54:02 -0700 | [diff] [blame] | 701 | cec_cmd.cmd_dev_index = 0; |
Stefan Reinauer | aaaf689 | 2013-08-29 15:57:11 -0700 | [diff] [blame] | 702 | |
| 703 | cmd_vbnvcontext.op = is_read ? EC_VBNV_CONTEXT_OP_READ : |
| 704 | EC_VBNV_CONTEXT_OP_WRITE; |
| 705 | |
| 706 | if (!is_read) |
| 707 | memcpy(&cmd_vbnvcontext.block, data, EC_VBNV_BLOCK_SIZE); |
| 708 | |
Julius Werner | 02e847b | 2015-02-20 13:36:11 -0800 | [diff] [blame] | 709 | if (google_chromeec_command(&cec_cmd)) { |
| 710 | printk(BIOS_ERR, "ERROR: failed to %s vbnv_ec context: %d\n", |
| 711 | is_read ? "read" : "write", (int)cec_cmd.cmd_code); |
| 712 | mdelay(10); /* just in case */ |
| 713 | if (--retries) |
| 714 | goto retry; |
| 715 | } |
Stefan Reinauer | aaaf689 | 2013-08-29 15:57:11 -0700 | [diff] [blame] | 716 | |
| 717 | if (is_read) |
| 718 | memcpy(data, &rsp_vbnvcontext.block, EC_VBNV_BLOCK_SIZE); |
| 719 | |
| 720 | return cec_cmd.cmd_code; |
| 721 | } |
| 722 | |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 723 | #ifndef __PRE_RAM__ |
| 724 | |
Gabe Black | 9f96aa6 | 2013-06-28 14:24:33 -0700 | [diff] [blame] | 725 | int google_chromeec_i2c_xfer(uint8_t chip, uint8_t addr, int alen, |
| 726 | uint8_t *buffer, int len, int is_read) |
| 727 | { |
| 728 | union { |
| 729 | struct ec_params_i2c_passthru p; |
| 730 | uint8_t outbuf[EC_HOST_PARAM_SIZE]; |
| 731 | } params; |
| 732 | union { |
| 733 | struct ec_response_i2c_passthru r; |
| 734 | uint8_t inbuf[EC_HOST_PARAM_SIZE]; |
| 735 | } response; |
| 736 | struct ec_params_i2c_passthru *p = ¶ms.p; |
| 737 | struct ec_response_i2c_passthru *r = &response.r; |
| 738 | struct ec_params_i2c_passthru_msg *msg = p->msg; |
| 739 | struct chromeec_command cmd; |
| 740 | uint8_t *pdata; |
| 741 | int read_len, write_len; |
| 742 | int size; |
| 743 | int rv; |
| 744 | |
| 745 | p->port = 0; |
| 746 | |
| 747 | if (alen != 1) { |
| 748 | printk(BIOS_ERR, "Unsupported address length %d\n", alen); |
| 749 | return -1; |
| 750 | } |
| 751 | if (is_read) { |
| 752 | read_len = len; |
| 753 | write_len = alen; |
| 754 | p->num_msgs = 2; |
| 755 | } else { |
| 756 | read_len = 0; |
| 757 | write_len = alen + len; |
| 758 | p->num_msgs = 1; |
| 759 | } |
| 760 | |
| 761 | size = sizeof(*p) + p->num_msgs * sizeof(*msg); |
| 762 | if (size + write_len > sizeof(params)) { |
| 763 | printk(BIOS_ERR, "Params too large for buffer\n"); |
| 764 | return -1; |
| 765 | } |
| 766 | if (sizeof(*r) + read_len > sizeof(response)) { |
| 767 | printk(BIOS_ERR, "Read length too big for buffer\n"); |
| 768 | return -1; |
| 769 | } |
| 770 | |
| 771 | /* Create a message to write the register address and optional data */ |
| 772 | pdata = (uint8_t *)p + size; |
| 773 | msg->addr_flags = chip; |
| 774 | msg->len = write_len; |
| 775 | pdata[0] = addr; |
| 776 | if (!is_read) |
| 777 | memcpy(pdata + 1, buffer, len); |
| 778 | msg++; |
| 779 | |
| 780 | if (read_len) { |
| 781 | msg->addr_flags = chip | EC_I2C_FLAG_READ; |
| 782 | msg->len = read_len; |
| 783 | } |
| 784 | |
| 785 | cmd.cmd_code = EC_CMD_I2C_PASSTHRU; |
| 786 | cmd.cmd_version = 0; |
| 787 | cmd.cmd_data_in = p; |
| 788 | cmd.cmd_size_in = size + write_len; |
| 789 | cmd.cmd_data_out = r; |
| 790 | cmd.cmd_size_out = sizeof(*r) + read_len; |
Duncan Laurie | fc0f517 | 2014-09-18 12:54:02 -0700 | [diff] [blame] | 791 | cmd.cmd_dev_index = 0; |
Gabe Black | 9f96aa6 | 2013-06-28 14:24:33 -0700 | [diff] [blame] | 792 | rv = google_chromeec_command(&cmd); |
| 793 | if (rv != 0) |
| 794 | return rv; |
| 795 | |
| 796 | /* Parse response */ |
| 797 | if (r->i2c_status & EC_I2C_STATUS_ERROR) { |
| 798 | printk(BIOS_ERR, "Transfer failed with status=0x%x\n", |
| 799 | r->i2c_status); |
| 800 | return -1; |
| 801 | } |
| 802 | |
| 803 | if (cmd.cmd_size_out < sizeof(*r) + read_len) { |
| 804 | printk(BIOS_ERR, "Truncated read response\n"); |
| 805 | return -1; |
| 806 | } |
| 807 | |
| 808 | if (read_len) |
| 809 | memcpy(buffer, r->data, read_len); |
| 810 | |
| 811 | return 0; |
| 812 | } |
| 813 | |
Furquan Shaikh | 8788fd6 | 2017-11-20 20:28:18 -0800 | [diff] [blame] | 814 | int google_chromeec_set_sci_mask(uint64_t mask) |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 815 | { |
Furquan Shaikh | 8788fd6 | 2017-11-20 20:28:18 -0800 | [diff] [blame] | 816 | printk(BIOS_DEBUG, "Chrome EC: Set SCI mask to 0x%016llx\n", mask); |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 817 | return google_chromeec_set_mask(EC_HOST_EVENT_SCI_MASK, mask); |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 818 | } |
| 819 | |
Furquan Shaikh | 8788fd6 | 2017-11-20 20:28:18 -0800 | [diff] [blame] | 820 | int google_chromeec_set_smi_mask(uint64_t mask) |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 821 | { |
Furquan Shaikh | 8788fd6 | 2017-11-20 20:28:18 -0800 | [diff] [blame] | 822 | printk(BIOS_DEBUG, "Chrome EC: Set SMI mask to 0x%016llx\n", mask); |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 823 | return google_chromeec_set_mask(EC_HOST_EVENT_SMI_MASK, mask); |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 824 | } |
| 825 | |
Furquan Shaikh | 8788fd6 | 2017-11-20 20:28:18 -0800 | [diff] [blame] | 826 | int google_chromeec_set_wake_mask(uint64_t mask) |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 827 | { |
Furquan Shaikh | 8788fd6 | 2017-11-20 20:28:18 -0800 | [diff] [blame] | 828 | printk(BIOS_DEBUG, "Chrome EC: Set WAKE mask to 0x%016llx\n", mask); |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 829 | return google_chromeec_set_mask |
| 830 | (EC_HOST_EVENT_ACTIVE_WAKE_MASK, mask); |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 831 | } |
| 832 | |
Furquan Shaikh | 8788fd6 | 2017-11-20 20:28:18 -0800 | [diff] [blame] | 833 | uint64_t google_chromeec_get_wake_mask(void) |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 834 | { |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 835 | return google_chromeec_get_mask(EC_HOST_EVENT_ACTIVE_WAKE_MASK); |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 836 | } |
| 837 | |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 838 | int google_chromeec_set_usb_charge_mode(u8 port_id, enum usb_charge_mode mode) |
| 839 | { |
| 840 | struct chromeec_command cmd; |
| 841 | struct ec_params_usb_charge_set_mode set_mode = { |
| 842 | .usb_port_id = port_id, |
| 843 | .mode = mode, |
| 844 | }; |
| 845 | |
| 846 | cmd.cmd_code = EC_CMD_USB_CHARGE_SET_MODE; |
| 847 | cmd.cmd_version = 0; |
| 848 | cmd.cmd_size_in = sizeof(set_mode); |
| 849 | cmd.cmd_data_in = &set_mode; |
| 850 | cmd.cmd_size_out = 0; |
| 851 | cmd.cmd_data_out = NULL; |
Duncan Laurie | fc0f517 | 2014-09-18 12:54:02 -0700 | [diff] [blame] | 852 | cmd.cmd_dev_index = 0; |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 853 | |
| 854 | return google_chromeec_command(&cmd); |
| 855 | } |
| 856 | |
Shelley Chen | ebd5330 | 2017-09-29 14:15:11 -0700 | [diff] [blame] | 857 | /* Get charger power info in Watts. Also returns type of charger */ |
| 858 | int google_chromeec_get_usb_pd_power_info(enum usb_chg_type *type, |
| 859 | u32 *max_watts) |
| 860 | { |
| 861 | struct ec_params_usb_pd_power_info req = { |
| 862 | .port = PD_POWER_CHARGING_PORT, |
| 863 | }; |
| 864 | struct ec_response_usb_pd_power_info rsp; |
| 865 | struct chromeec_command cmd = { |
| 866 | .cmd_code = EC_CMD_USB_PD_POWER_INFO, |
| 867 | .cmd_version = 0, |
| 868 | .cmd_data_in = &req, |
| 869 | .cmd_size_in = sizeof(req), |
| 870 | .cmd_data_out = &rsp, |
| 871 | .cmd_size_out = sizeof(rsp), |
| 872 | .cmd_dev_index = 0, |
| 873 | }; |
| 874 | struct usb_chg_measures m; |
| 875 | int rv = google_chromeec_command(&cmd); |
| 876 | if (rv != 0) |
| 877 | return rv; |
| 878 | /* values are given in milliAmps and milliVolts */ |
| 879 | *type = rsp.type; |
| 880 | m = rsp.meas; |
| 881 | *max_watts = (m.current_max * m.voltage_max) / 1000000; |
| 882 | |
| 883 | return 0; |
| 884 | } |
| 885 | |
Daisuke Nojiri | 93fd8fa | 2017-11-28 14:11:30 -0800 | [diff] [blame] | 886 | int google_chromeec_override_dedicated_charger_limit(u16 current_lim, |
| 887 | u16 voltage_lim) |
| 888 | { |
| 889 | struct ec_params_dedicated_charger_limit p = { |
| 890 | .current_lim = current_lim, |
| 891 | .voltage_lim = voltage_lim, |
| 892 | }; |
| 893 | struct chromeec_command cmd = { |
| 894 | .cmd_code = EC_CMD_OVERRIDE_DEDICATED_CHARGER_LIMIT, |
| 895 | .cmd_version = 0, |
| 896 | .cmd_data_in = &p, |
| 897 | .cmd_size_in = sizeof(p), |
| 898 | .cmd_data_out = NULL, |
| 899 | .cmd_size_out = 0, |
| 900 | .cmd_dev_index = 0, |
| 901 | }; |
| 902 | |
| 903 | return google_chromeec_command(&cmd); |
| 904 | } |
| 905 | |
Julius Werner | ea79d2b | 2016-11-21 20:14:07 -0800 | [diff] [blame] | 906 | int google_chromeec_set_usb_pd_role(u8 port, enum usb_pd_control_role role) |
| 907 | { |
| 908 | struct ec_params_usb_pd_control req = { |
| 909 | .port = port, |
| 910 | .role = role, |
| 911 | .mux = USB_PD_CTRL_MUX_NO_CHANGE, |
| 912 | .swap = USB_PD_CTRL_SWAP_NONE, |
| 913 | }; |
| 914 | struct ec_response_usb_pd_control rsp; |
| 915 | struct chromeec_command cmd = { |
| 916 | .cmd_code = EC_CMD_USB_PD_CONTROL, |
| 917 | .cmd_version = 0, |
| 918 | .cmd_data_in = &req, |
| 919 | .cmd_size_in = sizeof(req), |
| 920 | .cmd_data_out = &rsp, |
| 921 | .cmd_size_out = sizeof(rsp), |
| 922 | .cmd_dev_index = 0, |
| 923 | }; |
| 924 | |
| 925 | return google_chromeec_command(&cmd); |
| 926 | } |
| 927 | |
Jonathan Brandmeyer | bd21f2844 | 2018-07-23 16:44:51 -0600 | [diff] [blame] | 928 | static int google_chromeec_hello(void) |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 929 | { |
| 930 | struct chromeec_command cec_cmd; |
| 931 | struct ec_params_hello cmd_hello; |
| 932 | struct ec_response_hello rsp_hello; |
| 933 | cmd_hello.in_data = 0x10203040; |
| 934 | cec_cmd.cmd_code = EC_CMD_HELLO; |
| 935 | cec_cmd.cmd_version = 0; |
| 936 | cec_cmd.cmd_data_in = &cmd_hello.in_data; |
| 937 | cec_cmd.cmd_data_out = &rsp_hello.out_data; |
| 938 | cec_cmd.cmd_size_in = sizeof(cmd_hello.in_data); |
| 939 | cec_cmd.cmd_size_out = sizeof(rsp_hello.out_data); |
Duncan Laurie | fc0f517 | 2014-09-18 12:54:02 -0700 | [diff] [blame] | 940 | cec_cmd.cmd_dev_index = 0; |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 941 | google_chromeec_command(&cec_cmd); |
| 942 | printk(BIOS_DEBUG, "Google Chrome EC: Hello got back %x status (%x)\n", |
| 943 | rsp_hello.out_data, cec_cmd.cmd_code); |
| 944 | return cec_cmd.cmd_code; |
| 945 | } |
| 946 | |
Jonathan Brandmeyer | bd21f2844 | 2018-07-23 16:44:51 -0600 | [diff] [blame] | 947 | /* |
| 948 | * Convert a reset cause ID to human-readable string, providing total coverage |
| 949 | * of the 'cause' space. The returned string points to static storage and must |
| 950 | * not be free()ed. |
| 951 | */ |
| 952 | static const char *reset_cause_to_str(uint16_t cause) |
| 953 | { |
| 954 | /* See also ChromiumOS EC include/chipset.h for details. */ |
| 955 | static const char * const reset_causes[] = { |
| 956 | "(reset unknown)", |
| 957 | "reset: board custom", |
| 958 | "reset: ap hang detected", |
| 959 | "reset: console command", |
| 960 | "reset: keyboard sysreset", |
| 961 | "reset: keyboard warm reboot", |
| 962 | "reset: debug warm reboot", |
| 963 | "reset: at AP's request", |
| 964 | "reset: during EC initialization", |
| 965 | }; |
| 966 | |
| 967 | static const size_t shutdown_cause_begin = 1 << 15; |
| 968 | static const char * const shutdown_causes[] = { |
| 969 | "shutdown: power failure", |
| 970 | "shutdown: during EC initialization", |
| 971 | "shutdown: board custom", |
| 972 | "shutdown: battery voltage startup inhibit", |
| 973 | "shutdown: power wait asserted", |
| 974 | "shutdown: critical battery", |
| 975 | "shutdown: by console command", |
| 976 | "shutdown: entering G3", |
| 977 | "shutdown: thermal", |
| 978 | "shutdown: power button", |
| 979 | }; |
| 980 | |
| 981 | if (cause < ARRAY_SIZE(reset_causes)) |
| 982 | return reset_causes[cause]; |
| 983 | |
| 984 | if (cause < shutdown_cause_begin) |
| 985 | return "(reset unknown)"; |
| 986 | |
| 987 | if (cause < shutdown_cause_begin + ARRAY_SIZE(shutdown_causes)) |
| 988 | return shutdown_causes[cause - shutdown_cause_begin]; |
| 989 | |
| 990 | return "(shutdown unknown)"; |
| 991 | } |
| 992 | |
| 993 | /* |
| 994 | * Copy the EC's information about resets of the AP and its own uptime for |
| 995 | * debugging purposes. |
| 996 | */ |
| 997 | static void google_chromeec_log_uptimeinfo(void) |
| 998 | { |
| 999 | /* See also ChromiumOS EC include/system.h RESET_FLAG for details. */ |
| 1000 | static const char * const reset_flag_strings[] = { |
| 1001 | "other", |
| 1002 | "reset-pin", |
| 1003 | "brownout", |
| 1004 | "power-on", |
| 1005 | "watchdog", |
| 1006 | "soft", |
| 1007 | "hibernate", |
| 1008 | "rtc-alarm", |
| 1009 | "wake-pin", |
| 1010 | "low-battery", |
| 1011 | "sysjump", |
| 1012 | "hard", |
| 1013 | "ap-off", |
| 1014 | "preserved", |
| 1015 | "usb-resume", |
| 1016 | "rdd", |
| 1017 | "rbox", |
| 1018 | "security" |
| 1019 | }; |
| 1020 | struct ec_response_uptime_info cmd_resp; |
| 1021 | int i, flag, flag_count; |
| 1022 | |
| 1023 | struct chromeec_command get_uptime_cmd = { |
| 1024 | .cmd_code = EC_CMD_GET_UPTIME_INFO, |
| 1025 | .cmd_version = 0, |
| 1026 | .cmd_data_in = NULL, |
| 1027 | .cmd_size_in = 0, |
| 1028 | .cmd_data_out = &cmd_resp, |
| 1029 | .cmd_size_out = sizeof(cmd_resp), |
| 1030 | .cmd_dev_index = 0, |
| 1031 | }; |
| 1032 | google_chromeec_command(&get_uptime_cmd); |
| 1033 | if (get_uptime_cmd.cmd_code) { |
| 1034 | /* |
| 1035 | * Deliberately say nothing for EC's that don't support this |
| 1036 | * command |
| 1037 | */ |
| 1038 | return; |
| 1039 | } |
| 1040 | |
| 1041 | printk(BIOS_DEBUG, "Google Chrome EC uptime: %d.%03d seconds\n", |
| 1042 | cmd_resp.time_since_ec_boot_ms / MSECS_PER_SEC, |
| 1043 | cmd_resp.time_since_ec_boot_ms % MSECS_PER_SEC); |
| 1044 | |
| 1045 | printk(BIOS_DEBUG, "Google Chrome AP resets since EC boot: %d\n", |
| 1046 | cmd_resp.ap_resets_since_ec_boot); |
| 1047 | |
| 1048 | printk(BIOS_DEBUG, "Google Chrome most recent AP reset causes:\n"); |
| 1049 | for (i = 0; i != ARRAY_SIZE(cmd_resp.recent_ap_reset); ++i) { |
| 1050 | if (cmd_resp.recent_ap_reset[i].reset_time_ms == 0) |
| 1051 | continue; |
| 1052 | |
| 1053 | printk(BIOS_DEBUG, "\t%d.%03d: %d %s\n", |
| 1054 | cmd_resp.recent_ap_reset[i].reset_time_ms / |
| 1055 | MSECS_PER_SEC, |
| 1056 | cmd_resp.recent_ap_reset[i].reset_time_ms % |
| 1057 | MSECS_PER_SEC, |
| 1058 | cmd_resp.recent_ap_reset[i].reset_cause, |
| 1059 | reset_cause_to_str( |
| 1060 | cmd_resp.recent_ap_reset[i].reset_cause)); |
| 1061 | } |
| 1062 | |
| 1063 | printk(BIOS_DEBUG, "Google Chrome EC reset flags at last EC boot: "); |
| 1064 | flag_count = 0; |
| 1065 | for (flag = 0; flag != ARRAY_SIZE(reset_flag_strings); ++flag) { |
| 1066 | if ((cmd_resp.ec_reset_flags & (1 << flag)) != 0) { |
| 1067 | if (flag_count) |
| 1068 | printk(BIOS_DEBUG, " | "); |
| 1069 | printk(BIOS_DEBUG, reset_flag_strings[flag]); |
| 1070 | flag_count++; |
| 1071 | } |
| 1072 | } |
| 1073 | printk(BIOS_DEBUG, "\n"); |
| 1074 | } |
| 1075 | |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 1076 | static int ec_image_type; /* Cached EC image type (ro or rw). */ |
| 1077 | |
Hung-Te Lin | 76720d0 | 2013-04-15 18:06:32 +0800 | [diff] [blame] | 1078 | void google_chromeec_init(void) |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 1079 | { |
| 1080 | struct chromeec_command cec_cmd; |
Hung-Te Lin | 76720d0 | 2013-04-15 18:06:32 +0800 | [diff] [blame] | 1081 | struct ec_response_get_version cec_resp = {{0}}; |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 1082 | |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 1083 | google_chromeec_hello(); |
| 1084 | |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 1085 | cec_cmd.cmd_code = EC_CMD_GET_VERSION; |
| 1086 | cec_cmd.cmd_version = 0; |
Hung-Te Lin | 76720d0 | 2013-04-15 18:06:32 +0800 | [diff] [blame] | 1087 | cec_cmd.cmd_data_out = &cec_resp; |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 1088 | cec_cmd.cmd_size_in = 0; |
Hung-Te Lin | 76720d0 | 2013-04-15 18:06:32 +0800 | [diff] [blame] | 1089 | cec_cmd.cmd_size_out = sizeof(cec_resp); |
Duncan Laurie | fc0f517 | 2014-09-18 12:54:02 -0700 | [diff] [blame] | 1090 | cec_cmd.cmd_dev_index = 0; |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 1091 | google_chromeec_command(&cec_cmd); |
| 1092 | |
| 1093 | if (cec_cmd.cmd_code) { |
| 1094 | printk(BIOS_DEBUG, |
| 1095 | "Google Chrome EC: version command failed!\n"); |
| 1096 | } else { |
| 1097 | printk(BIOS_DEBUG, "Google Chrome EC: version:\n"); |
Hung-Te Lin | 76720d0 | 2013-04-15 18:06:32 +0800 | [diff] [blame] | 1098 | printk(BIOS_DEBUG, " ro: %s\n", cec_resp.version_string_ro); |
| 1099 | printk(BIOS_DEBUG, " rw: %s\n", cec_resp.version_string_rw); |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 1100 | printk(BIOS_DEBUG, " running image: %d\n", |
Hung-Te Lin | 76720d0 | 2013-04-15 18:06:32 +0800 | [diff] [blame] | 1101 | cec_resp.current_image); |
| 1102 | ec_image_type = cec_resp.current_image; |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 1103 | } |
Jonathan Brandmeyer | bd21f2844 | 2018-07-23 16:44:51 -0600 | [diff] [blame] | 1104 | |
| 1105 | google_chromeec_log_uptimeinfo(); |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 1106 | } |
| 1107 | |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 1108 | int google_ec_running_ro(void) |
| 1109 | { |
| 1110 | return (ec_image_type == EC_IMAGE_RO); |
| 1111 | } |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 1112 | |
| 1113 | #endif /* ! __PRE_RAM__ */ |
Daisuke Nojiri | 476c2c5 | 2018-01-26 17:36:44 -0800 | [diff] [blame] | 1114 | |
| 1115 | /** |
| 1116 | * Check if EC/TCPM is in an alternate mode or not. |
| 1117 | * |
| 1118 | * @param svid SVID of the alternate mode to check |
| 1119 | * @return 0: Not in the mode. -1: Error. 1: Yes. |
| 1120 | */ |
| 1121 | int google_chromeec_pd_get_amode(uint16_t svid) |
| 1122 | { |
| 1123 | struct ec_response_usb_pd_ports r; |
| 1124 | struct chromeec_command cmd; |
| 1125 | int i; |
| 1126 | |
| 1127 | cmd.cmd_code = EC_CMD_USB_PD_PORTS; |
| 1128 | cmd.cmd_version = 0; |
| 1129 | cmd.cmd_data_in = NULL; |
| 1130 | cmd.cmd_size_in = 0; |
| 1131 | cmd.cmd_data_out = &r; |
| 1132 | cmd.cmd_size_out = sizeof(r); |
| 1133 | cmd.cmd_dev_index = 0; |
| 1134 | if (google_chromeec_command(&cmd) < 0) |
| 1135 | return -1; |
| 1136 | |
| 1137 | for (i = 0; i < r.num_ports; i++) { |
| 1138 | struct ec_params_usb_pd_get_mode_request p; |
| 1139 | struct ec_params_usb_pd_get_mode_response res; |
Daisuke Nojiri | ccfa18f | 2018-04-26 12:59:58 -0700 | [diff] [blame] | 1140 | int svid_idx = 0; |
Daisuke Nojiri | 476c2c5 | 2018-01-26 17:36:44 -0800 | [diff] [blame] | 1141 | |
| 1142 | do { |
Daisuke Nojiri | ccfa18f | 2018-04-26 12:59:58 -0700 | [diff] [blame] | 1143 | /* Reset cmd in each iteration in case |
| 1144 | google_chromeec_command changes it. */ |
| 1145 | p.port = i; |
| 1146 | p.svid_idx = svid_idx; |
| 1147 | cmd.cmd_code = EC_CMD_USB_PD_GET_AMODE; |
| 1148 | cmd.cmd_version = 0; |
| 1149 | cmd.cmd_data_in = &p; |
| 1150 | cmd.cmd_size_in = sizeof(p); |
| 1151 | cmd.cmd_data_out = &res; |
| 1152 | cmd.cmd_size_out = sizeof(res); |
| 1153 | cmd.cmd_dev_index = 0; |
| 1154 | |
Daisuke Nojiri | 476c2c5 | 2018-01-26 17:36:44 -0800 | [diff] [blame] | 1155 | if (google_chromeec_command(&cmd) < 0) |
| 1156 | return -1; |
| 1157 | if (res.svid == svid) |
| 1158 | return 1; |
Daisuke Nojiri | ccfa18f | 2018-04-26 12:59:58 -0700 | [diff] [blame] | 1159 | svid_idx++; |
Daisuke Nojiri | 476c2c5 | 2018-01-26 17:36:44 -0800 | [diff] [blame] | 1160 | } while (res.svid); |
| 1161 | } |
| 1162 | |
| 1163 | return 0; |
| 1164 | } |
Daisuke Nojiri | ebb86be | 2018-01-26 17:36:44 -0800 | [diff] [blame] | 1165 | |
Daisuke Nojiri | ebb86be | 2018-01-26 17:36:44 -0800 | [diff] [blame] | 1166 | |
| 1167 | #define USB_SID_DISPLAYPORT 0xff01 |
| 1168 | |
Daisuke Nojiri | d182b63 | 2018-02-16 17:50:06 -0800 | [diff] [blame] | 1169 | /** |
| 1170 | * Wait for DisplayPort to be ready |
| 1171 | * |
| 1172 | * @param timeout Wait aborts after <timeout> ms. |
| 1173 | * @return 1: Success or 0: Timeout. |
| 1174 | */ |
| 1175 | int google_chromeec_wait_for_displayport(long timeout) |
Daisuke Nojiri | ebb86be | 2018-01-26 17:36:44 -0800 | [diff] [blame] | 1176 | { |
| 1177 | struct stopwatch sw; |
| 1178 | |
Daisuke Nojiri | d182b63 | 2018-02-16 17:50:06 -0800 | [diff] [blame] | 1179 | printk(BIOS_INFO, "Waiting for DisplayPort\n"); |
| 1180 | stopwatch_init_msecs_expire(&sw, timeout); |
Daisuke Nojiri | ebb86be | 2018-01-26 17:36:44 -0800 | [diff] [blame] | 1181 | while (google_chromeec_pd_get_amode(USB_SID_DISPLAYPORT) != 1) { |
| 1182 | if (stopwatch_expired(&sw)) { |
| 1183 | printk(BIOS_WARNING, |
Daisuke Nojiri | d182b63 | 2018-02-16 17:50:06 -0800 | [diff] [blame] | 1184 | "DisplayPort not ready after %ldms. Abort.\n", |
| 1185 | timeout); |
| 1186 | return 0; |
Daisuke Nojiri | ebb86be | 2018-01-26 17:36:44 -0800 | [diff] [blame] | 1187 | } |
| 1188 | mdelay(200); |
| 1189 | } |
Daisuke Nojiri | d182b63 | 2018-02-16 17:50:06 -0800 | [diff] [blame] | 1190 | printk(BIOS_INFO, "DisplayPort ready after %lu ms\n", |
Daisuke Nojiri | ebb86be | 2018-01-26 17:36:44 -0800 | [diff] [blame] | 1191 | stopwatch_duration_msecs(&sw)); |
Daisuke Nojiri | d182b63 | 2018-02-16 17:50:06 -0800 | [diff] [blame] | 1192 | |
| 1193 | return 1; |
Daisuke Nojiri | ebb86be | 2018-01-26 17:36:44 -0800 | [diff] [blame] | 1194 | } |