Angel Pons | 210a008 | 2020-04-02 23:48:24 +0200 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 2 | |
| 3 | #include <stdint.h> |
Stefan Reinauer | aaaf689 | 2013-08-29 15:57:11 -0700 | [diff] [blame] | 4 | #include <string.h> |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 5 | #include <assert.h> |
Tim Wawrzynczak | e607829 | 2020-01-22 15:22:18 -0700 | [diff] [blame] | 6 | #include <console/console.h> |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 7 | #include <delay.h> |
Tim Wawrzynczak | e607829 | 2020-01-22 15:22:18 -0700 | [diff] [blame] | 8 | #include <device/device.h> |
| 9 | #include <device/path.h> |
Furquan Shaikh | bce8bb6 | 2016-11-11 13:57:55 -0800 | [diff] [blame] | 10 | #include <elog.h> |
Simon Glass | 7865932 | 2016-06-10 20:58:24 -0600 | [diff] [blame] | 11 | #include <rtc.h> |
Philipp Deppenwiese | fea2429 | 2017-10-17 17:02:29 +0200 | [diff] [blame] | 12 | #include <security/vboot/vboot_common.h> |
Tim Wawrzynczak | e607829 | 2020-01-22 15:22:18 -0700 | [diff] [blame] | 13 | #include <stdlib.h> |
Daisuke Nojiri | ebb86be | 2018-01-26 17:36:44 -0800 | [diff] [blame] | 14 | #include <timer.h> |
Edward O'Callaghan | b57fef9 | 2014-06-17 20:13:08 +1000 | [diff] [blame] | 15 | |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 16 | #include "ec.h" |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 17 | |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 18 | #define INVALID_HCMD 0xFF |
| 19 | |
| 20 | /* |
| 21 | * Map UHEPI masks to non UHEPI commands in order to support old EC FW |
| 22 | * which does not support UHEPI command. |
| 23 | */ |
| 24 | static const struct { |
| 25 | uint8_t set_cmd; |
| 26 | uint8_t clear_cmd; |
| 27 | uint8_t get_cmd; |
| 28 | } event_map[] = { |
| 29 | [EC_HOST_EVENT_MAIN] = { |
| 30 | INVALID_HCMD, EC_CMD_HOST_EVENT_CLEAR, |
| 31 | INVALID_HCMD, |
| 32 | }, |
| 33 | [EC_HOST_EVENT_B] = { |
| 34 | INVALID_HCMD, EC_CMD_HOST_EVENT_CLEAR_B, |
| 35 | EC_CMD_HOST_EVENT_GET_B, |
| 36 | }, |
| 37 | [EC_HOST_EVENT_SCI_MASK] = { |
| 38 | EC_CMD_HOST_EVENT_SET_SCI_MASK, INVALID_HCMD, |
| 39 | EC_CMD_HOST_EVENT_GET_SCI_MASK, |
| 40 | }, |
| 41 | [EC_HOST_EVENT_SMI_MASK] = { |
| 42 | EC_CMD_HOST_EVENT_SET_SMI_MASK, INVALID_HCMD, |
| 43 | EC_CMD_HOST_EVENT_GET_SMI_MASK, |
| 44 | }, |
| 45 | [EC_HOST_EVENT_ALWAYS_REPORT_MASK] = { |
| 46 | INVALID_HCMD, INVALID_HCMD, INVALID_HCMD, |
| 47 | }, |
| 48 | [EC_HOST_EVENT_ACTIVE_WAKE_MASK] = { |
| 49 | EC_CMD_HOST_EVENT_SET_WAKE_MASK, INVALID_HCMD, |
| 50 | EC_CMD_HOST_EVENT_GET_WAKE_MASK, |
| 51 | }, |
Patrick Georgi | a29d234 | 2018-05-02 17:12:49 +0200 | [diff] [blame] | 52 | [EC_HOST_EVENT_LAZY_WAKE_MASK_S0IX] = { |
| 53 | EC_CMD_HOST_EVENT_SET_WAKE_MASK, INVALID_HCMD, |
| 54 | EC_CMD_HOST_EVENT_GET_WAKE_MASK, |
| 55 | }, |
| 56 | [EC_HOST_EVENT_LAZY_WAKE_MASK_S3] = { |
| 57 | EC_CMD_HOST_EVENT_SET_WAKE_MASK, INVALID_HCMD, |
| 58 | EC_CMD_HOST_EVENT_GET_WAKE_MASK, |
| 59 | }, |
| 60 | [EC_HOST_EVENT_LAZY_WAKE_MASK_S5] = { |
| 61 | EC_CMD_HOST_EVENT_SET_WAKE_MASK, INVALID_HCMD, |
| 62 | EC_CMD_HOST_EVENT_GET_WAKE_MASK, |
| 63 | }, |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 64 | }; |
| 65 | |
Hung-Te Lin | 6bfbb33 | 2013-04-15 18:27:24 +0800 | [diff] [blame] | 66 | uint8_t google_chromeec_calc_checksum(const uint8_t *data, int size) |
| 67 | { |
| 68 | int csum; |
| 69 | |
| 70 | for (csum = 0; size > 0; data++, size--) |
| 71 | csum += *data; |
| 72 | return (uint8_t)(csum & 0xff); |
| 73 | } |
| 74 | |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 75 | int google_chromeec_kbbacklight(int percent) |
| 76 | { |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 77 | struct ec_params_pwm_set_keyboard_backlight params = { |
| 78 | .percent = percent % 101, |
| 79 | }; |
| 80 | struct ec_response_pwm_get_keyboard_backlight resp = {}; |
| 81 | struct chromeec_command cmd = { |
| 82 | .cmd_code = EC_CMD_PWM_SET_KEYBOARD_BACKLIGHT, |
| 83 | .cmd_version = 0, |
| 84 | .cmd_data_in = ¶ms, |
| 85 | .cmd_data_out = &resp, |
| 86 | .cmd_size_in = sizeof(params), |
| 87 | .cmd_size_out = sizeof(resp), |
| 88 | .cmd_dev_index = 0, |
| 89 | }; |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 90 | |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 91 | google_chromeec_command(&cmd); |
| 92 | printk(BIOS_DEBUG, "Google Chrome set keyboard backlight: %x status (%x)\n", |
| 93 | resp.percent, cmd.cmd_code); |
| 94 | return cmd.cmd_code; |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 95 | } |
| 96 | |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 97 | void google_chromeec_post(uint8_t postcode) |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 98 | { |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 99 | /* backlight is a percent. postcode is a uint8_t. |
| 100 | * Convert the uint8_t to %. |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 101 | */ |
| 102 | postcode = (postcode/4) + (postcode/8); |
| 103 | google_chromeec_kbbacklight(postcode); |
| 104 | } |
| 105 | |
| 106 | /* |
| 107 | * Query the EC for specified mask indicating enabled events. |
| 108 | * The EC maintains separate event masks for SMI, SCI and WAKE. |
| 109 | */ |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 110 | static int google_chromeec_uhepi_cmd(uint8_t mask, uint8_t action, |
| 111 | uint64_t *value) |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 112 | { |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 113 | int ret; |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 114 | struct ec_params_host_event params = { |
| 115 | .action = action, |
| 116 | .mask_type = mask, |
| 117 | }; |
| 118 | struct ec_response_host_event resp = {}; |
| 119 | struct chromeec_command cmd = { |
| 120 | .cmd_code = EC_CMD_HOST_EVENT, |
| 121 | .cmd_version = 0, |
| 122 | .cmd_data_in = ¶ms, |
| 123 | .cmd_size_in = sizeof(params), |
| 124 | .cmd_data_out = &resp, |
| 125 | .cmd_size_out = sizeof(resp), |
| 126 | .cmd_dev_index = 0, |
| 127 | }; |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 128 | |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 129 | if (action != EC_HOST_EVENT_GET) |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 130 | params.value = *value; |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 131 | else |
| 132 | *value = 0; |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 133 | |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 134 | ret = google_chromeec_command(&cmd); |
| 135 | |
| 136 | if (action != EC_HOST_EVENT_GET) |
| 137 | return ret; |
| 138 | if (ret == 0) |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 139 | *value = resp.value; |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 140 | return ret; |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 141 | } |
| 142 | |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 143 | static int google_chromeec_handle_non_uhepi_cmd(uint8_t hcmd, uint8_t action, |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 144 | uint64_t *value) |
Sheng-Liang Song | 1d6560f | 2014-04-30 15:46:45 -0700 | [diff] [blame] | 145 | { |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 146 | int ret = -1; |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 147 | struct ec_params_host_event_mask params = {}; |
| 148 | struct ec_response_host_event_mask resp = {}; |
| 149 | struct chromeec_command cmd = { |
| 150 | .cmd_code = hcmd, |
| 151 | .cmd_version = 0, |
| 152 | .cmd_data_in = ¶ms, |
| 153 | .cmd_size_in = sizeof(params), |
| 154 | .cmd_data_out = &resp, |
| 155 | .cmd_size_out = sizeof(resp), |
| 156 | .cmd_dev_index = 0, |
| 157 | }; |
Sheng-Liang Song | 1d6560f | 2014-04-30 15:46:45 -0700 | [diff] [blame] | 158 | |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 159 | if (hcmd == INVALID_HCMD) |
| 160 | return ret; |
| 161 | |
| 162 | if (action != EC_HOST_EVENT_GET) |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 163 | params.mask = (uint32_t)*value; |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 164 | else |
| 165 | *value = 0; |
| 166 | |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 167 | ret = google_chromeec_command(&cmd); |
| 168 | |
| 169 | if (action != EC_HOST_EVENT_GET) |
| 170 | return ret; |
| 171 | if (ret == 0) |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 172 | *value = resp.mask; |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 173 | |
| 174 | return ret; |
| 175 | } |
| 176 | |
| 177 | bool google_chromeec_is_uhepi_supported(void) |
| 178 | { |
| 179 | #define UHEPI_SUPPORTED 1 |
| 180 | #define UHEPI_NOT_SUPPORTED 2 |
| 181 | |
Arthur Heymans | 95b3f28 | 2019-11-20 21:23:16 +0100 | [diff] [blame] | 182 | static int uhepi_support; |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 183 | |
| 184 | if (!uhepi_support) { |
| 185 | uhepi_support = google_chromeec_check_feature |
Matt DeVillier | 4132893 | 2018-03-04 00:05:12 -0600 | [diff] [blame] | 186 | (EC_FEATURE_UNIFIED_WAKE_MASKS) > 0 ? UHEPI_SUPPORTED : |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 187 | UHEPI_NOT_SUPPORTED; |
| 188 | printk(BIOS_DEBUG, "Chrome EC: UHEPI %s\n", |
| 189 | uhepi_support == UHEPI_SUPPORTED ? |
| 190 | "supported" : "not supported"); |
| 191 | } |
| 192 | return uhepi_support == UHEPI_SUPPORTED; |
| 193 | } |
| 194 | |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 195 | static uint64_t google_chromeec_get_mask(uint8_t type) |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 196 | { |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 197 | uint64_t value = 0; |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 198 | |
| 199 | if (google_chromeec_is_uhepi_supported()) { |
| 200 | google_chromeec_uhepi_cmd(type, EC_HOST_EVENT_GET, &value); |
| 201 | } else { |
| 202 | assert(type < ARRAY_SIZE(event_map)); |
| 203 | google_chromeec_handle_non_uhepi_cmd( |
| 204 | event_map[type].get_cmd, |
| 205 | EC_HOST_EVENT_GET, &value); |
| 206 | } |
| 207 | return value; |
| 208 | } |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 209 | |
| 210 | static int google_chromeec_clear_mask(uint8_t type, uint64_t mask) |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 211 | { |
| 212 | if (google_chromeec_is_uhepi_supported()) |
| 213 | return google_chromeec_uhepi_cmd(type, |
| 214 | EC_HOST_EVENT_CLEAR, &mask); |
| 215 | |
| 216 | assert(type < ARRAY_SIZE(event_map)); |
| 217 | return google_chromeec_handle_non_uhepi_cmd( |
| 218 | event_map[type].clear_cmd, |
| 219 | EC_HOST_EVENT_CLEAR, &mask); |
| 220 | } |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 221 | |
| 222 | static int __unused google_chromeec_set_mask(uint8_t type, uint64_t mask) |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 223 | { |
| 224 | if (google_chromeec_is_uhepi_supported()) |
| 225 | return google_chromeec_uhepi_cmd(type, |
| 226 | EC_HOST_EVENT_SET, &mask); |
| 227 | |
| 228 | assert(type < ARRAY_SIZE(event_map)); |
| 229 | return google_chromeec_handle_non_uhepi_cmd( |
| 230 | event_map[type].set_cmd, |
| 231 | EC_HOST_EVENT_SET, &mask); |
| 232 | } |
| 233 | |
| 234 | static int google_chromeec_set_s3_lazy_wake_mask(uint64_t mask) |
| 235 | { |
Furquan Shaikh | 8389fe6 | 2018-02-23 16:07:25 -0800 | [diff] [blame] | 236 | 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] | 237 | mask); |
| 238 | return google_chromeec_set_mask |
| 239 | (EC_HOST_EVENT_LAZY_WAKE_MASK_S3, mask); |
| 240 | } |
| 241 | |
| 242 | static int google_chromeec_set_s5_lazy_wake_mask(uint64_t mask) |
| 243 | { |
Furquan Shaikh | 8389fe6 | 2018-02-23 16:07:25 -0800 | [diff] [blame] | 244 | 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] | 245 | mask); |
| 246 | return google_chromeec_set_mask |
| 247 | (EC_HOST_EVENT_LAZY_WAKE_MASK_S5, mask); |
| 248 | } |
| 249 | |
| 250 | static int google_chromeec_set_s0ix_lazy_wake_mask(uint64_t mask) |
| 251 | { |
Furquan Shaikh | 8389fe6 | 2018-02-23 16:07:25 -0800 | [diff] [blame] | 252 | 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] | 253 | mask); |
| 254 | return google_chromeec_set_mask |
| 255 | (EC_HOST_EVENT_LAZY_WAKE_MASK_S0IX, mask); |
| 256 | } |
| 257 | static void google_chromeec_set_lazy_wake_masks(uint64_t s5_mask, |
| 258 | uint64_t s3_mask, uint64_t s0ix_mask) |
| 259 | { |
| 260 | if (google_chromeec_set_s5_lazy_wake_mask(s5_mask)) |
| 261 | printk(BIOS_DEBUG, "Error: Set S5 LAZY WAKE mask failed\n"); |
| 262 | if (google_chromeec_set_s3_lazy_wake_mask(s3_mask)) |
| 263 | printk(BIOS_DEBUG, "Error: Set S3 LAZY WAKE mask failed\n"); |
Paul Moy | 88900dc | 2018-09-14 15:24:23 -0600 | [diff] [blame] | 264 | /* |
| 265 | * Make sure S0Ix is supported before trying to set up the EC's |
| 266 | * S0Ix lazy wake mask. |
| 267 | */ |
| 268 | if (s0ix_mask && google_chromeec_set_s0ix_lazy_wake_mask(s0ix_mask)) |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 269 | printk(BIOS_DEBUG, "Error: Set S0iX LAZY WAKE mask failed\n"); |
Sheng-Liang Song | 1d6560f | 2014-04-30 15:46:45 -0700 | [diff] [blame] | 270 | } |
| 271 | |
Furquan Shaikh | 8788fd6 | 2017-11-20 20:28:18 -0800 | [diff] [blame] | 272 | uint64_t google_chromeec_get_events_b(void) |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 273 | { |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 274 | return google_chromeec_get_mask(EC_HOST_EVENT_B); |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 275 | } |
| 276 | |
Furquan Shaikh | 8788fd6 | 2017-11-20 20:28:18 -0800 | [diff] [blame] | 277 | int google_chromeec_clear_events_b(uint64_t mask) |
Sheng-Liang Song | 1d6560f | 2014-04-30 15:46:45 -0700 | [diff] [blame] | 278 | { |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 279 | printk(BIOS_DEBUG, |
| 280 | "Chrome EC: clear events_b mask to 0x%016llx\n", mask); |
| 281 | return google_chromeec_clear_mask(EC_HOST_EVENT_B, mask); |
Sheng-Liang Song | 1d6560f | 2014-04-30 15:46:45 -0700 | [diff] [blame] | 282 | } |
| 283 | |
Furquan Shaikh | e01bf64 | 2017-10-13 10:59:51 -0700 | [diff] [blame] | 284 | int google_chromeec_get_mkbp_event(struct ec_response_get_next_event *event) |
| 285 | { |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 286 | struct chromeec_command cmd = { |
| 287 | .cmd_code = EC_CMD_GET_NEXT_EVENT, |
| 288 | .cmd_version = 0, |
| 289 | .cmd_data_in = NULL, |
| 290 | .cmd_size_in = 0, |
| 291 | .cmd_data_out = event, |
| 292 | .cmd_size_out = sizeof(*event), |
| 293 | .cmd_dev_index = 0, |
| 294 | }; |
Furquan Shaikh | e01bf64 | 2017-10-13 10:59:51 -0700 | [diff] [blame] | 295 | |
| 296 | return google_chromeec_command(&cmd); |
| 297 | } |
| 298 | |
Duncan Laurie | 7378a17 | 2017-06-29 23:52:17 -0700 | [diff] [blame] | 299 | /* Get the current device event mask */ |
Furquan Shaikh | 8788fd6 | 2017-11-20 20:28:18 -0800 | [diff] [blame] | 300 | uint64_t google_chromeec_get_device_enabled_events(void) |
Duncan Laurie | 7378a17 | 2017-06-29 23:52:17 -0700 | [diff] [blame] | 301 | { |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 302 | struct ec_params_device_event params = { |
| 303 | .param = EC_DEVICE_EVENT_PARAM_GET_ENABLED_EVENTS, |
| 304 | }; |
| 305 | struct ec_response_device_event resp = {}; |
| 306 | struct chromeec_command cmd = { |
| 307 | .cmd_code = EC_CMD_DEVICE_EVENT, |
| 308 | .cmd_version = 0, |
| 309 | .cmd_data_in = ¶ms, |
| 310 | .cmd_size_in = sizeof(params), |
| 311 | .cmd_data_out = &resp, |
| 312 | .cmd_size_out = sizeof(resp), |
| 313 | .cmd_dev_index = 0, |
| 314 | }; |
Duncan Laurie | 7378a17 | 2017-06-29 23:52:17 -0700 | [diff] [blame] | 315 | |
| 316 | if (google_chromeec_command(&cmd) == 0) |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 317 | return resp.event_mask; |
| 318 | |
Duncan Laurie | 7378a17 | 2017-06-29 23:52:17 -0700 | [diff] [blame] | 319 | return 0; |
| 320 | } |
| 321 | |
| 322 | /* Set the current device event mask */ |
Furquan Shaikh | 8788fd6 | 2017-11-20 20:28:18 -0800 | [diff] [blame] | 323 | int google_chromeec_set_device_enabled_events(uint64_t mask) |
Duncan Laurie | 7378a17 | 2017-06-29 23:52:17 -0700 | [diff] [blame] | 324 | { |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 325 | struct ec_params_device_event params = { |
| 326 | .event_mask = (uint32_t)mask, |
| 327 | .param = EC_DEVICE_EVENT_PARAM_SET_ENABLED_EVENTS, |
| 328 | }; |
| 329 | struct ec_response_device_event resp = {}; |
| 330 | struct chromeec_command cmd = { |
| 331 | .cmd_code = EC_CMD_DEVICE_EVENT, |
| 332 | .cmd_version = 0, |
| 333 | .cmd_data_in = ¶ms, |
| 334 | .cmd_size_in = sizeof(params), |
| 335 | .cmd_data_out = &resp, |
| 336 | .cmd_size_out = sizeof(resp), |
| 337 | .cmd_dev_index = 0, |
| 338 | }; |
Duncan Laurie | 7378a17 | 2017-06-29 23:52:17 -0700 | [diff] [blame] | 339 | |
| 340 | return google_chromeec_command(&cmd); |
| 341 | } |
| 342 | |
| 343 | /* Read and clear pending device events */ |
Furquan Shaikh | 8788fd6 | 2017-11-20 20:28:18 -0800 | [diff] [blame] | 344 | uint64_t google_chromeec_get_device_current_events(void) |
Duncan Laurie | 7378a17 | 2017-06-29 23:52:17 -0700 | [diff] [blame] | 345 | { |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 346 | struct ec_params_device_event params = { |
| 347 | .param = EC_DEVICE_EVENT_PARAM_GET_CURRENT_EVENTS, |
| 348 | }; |
| 349 | struct ec_response_device_event resp = {}; |
| 350 | struct chromeec_command cmd = { |
| 351 | .cmd_code = EC_CMD_DEVICE_EVENT, |
| 352 | .cmd_version = 0, |
| 353 | .cmd_data_in = ¶ms, |
| 354 | .cmd_size_in = sizeof(params), |
| 355 | .cmd_data_out = &resp, |
| 356 | .cmd_size_out = sizeof(resp), |
| 357 | .cmd_dev_index = 0, |
| 358 | }; |
Duncan Laurie | 7378a17 | 2017-06-29 23:52:17 -0700 | [diff] [blame] | 359 | |
| 360 | if (google_chromeec_command(&cmd) == 0) |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 361 | return resp.event_mask; |
| 362 | |
Duncan Laurie | 7378a17 | 2017-06-29 23:52:17 -0700 | [diff] [blame] | 363 | return 0; |
| 364 | } |
| 365 | |
Furquan Shaikh | 8788fd6 | 2017-11-20 20:28:18 -0800 | [diff] [blame] | 366 | static void google_chromeec_log_device_events(uint64_t mask) |
Duncan Laurie | 7378a17 | 2017-06-29 23:52:17 -0700 | [diff] [blame] | 367 | { |
Furquan Shaikh | 8788fd6 | 2017-11-20 20:28:18 -0800 | [diff] [blame] | 368 | uint64_t events; |
Duncan Laurie | 7378a17 | 2017-06-29 23:52:17 -0700 | [diff] [blame] | 369 | int i; |
| 370 | |
Julius Werner | cd49cce | 2019-03-05 16:53:33 -0800 | [diff] [blame] | 371 | if (!CONFIG(ELOG) || !mask) |
Duncan Laurie | 7378a17 | 2017-06-29 23:52:17 -0700 | [diff] [blame] | 372 | return; |
| 373 | |
| 374 | if (google_chromeec_check_feature(EC_FEATURE_DEVICE_EVENT) != 1) |
| 375 | return; |
| 376 | |
| 377 | events = google_chromeec_get_device_current_events() & mask; |
Furquan Shaikh | 8788fd6 | 2017-11-20 20:28:18 -0800 | [diff] [blame] | 378 | printk(BIOS_INFO, "EC Device Events: 0x%016llx\n", events); |
Duncan Laurie | 7378a17 | 2017-06-29 23:52:17 -0700 | [diff] [blame] | 379 | |
| 380 | for (i = 0; i < sizeof(events) * 8; i++) { |
| 381 | if (EC_DEVICE_EVENT_MASK(i) & events) |
| 382 | elog_add_event_byte(ELOG_TYPE_EC_DEVICE_EVENT, i); |
| 383 | } |
| 384 | } |
| 385 | |
Furquan Shaikh | 8788fd6 | 2017-11-20 20:28:18 -0800 | [diff] [blame] | 386 | void google_chromeec_log_events(uint64_t mask) |
Furquan Shaikh | 2749c52 | 2017-10-04 14:01:41 -0700 | [diff] [blame] | 387 | { |
Ravi Chandra Sadineni | 6ae8b50 | 2019-06-18 10:10:19 -0700 | [diff] [blame] | 388 | uint64_t events; |
| 389 | int i; |
Furquan Shaikh | 2749c52 | 2017-10-04 14:01:41 -0700 | [diff] [blame] | 390 | |
Julius Werner | cd49cce | 2019-03-05 16:53:33 -0800 | [diff] [blame] | 391 | if (!CONFIG(ELOG)) |
Furquan Shaikh | 2749c52 | 2017-10-04 14:01:41 -0700 | [diff] [blame] | 392 | return; |
| 393 | |
Ravi Chandra Sadineni | 6ae8b50 | 2019-06-18 10:10:19 -0700 | [diff] [blame] | 394 | events = google_chromeec_get_events_b() & mask; |
Tim Wawrzynczak | 7777e1c | 2020-07-14 13:30:46 -0600 | [diff] [blame] | 395 | |
| 396 | /* |
| 397 | * This loop starts at 1 because the EC_HOST_EVENT_MASK macro subtracts |
| 398 | * 1 from its argument before applying the left-shift operator. This |
| 399 | * prevents a left-shift of -1 happening, and covers the entire 64-bit |
| 400 | * range of the event mask. |
| 401 | */ |
| 402 | for (i = 1; i <= sizeof(events) * 8; i++) { |
Ravi Chandra Sadineni | 6ae8b50 | 2019-06-18 10:10:19 -0700 | [diff] [blame] | 403 | if (EC_HOST_EVENT_MASK(i) & events) |
| 404 | elog_add_event_byte(ELOG_TYPE_EC_EVENT, i); |
Furquan Shaikh | 1432cbc | 2017-10-13 11:31:35 -0700 | [diff] [blame] | 405 | } |
Furquan Shaikh | 2749c52 | 2017-10-04 14:01:41 -0700 | [diff] [blame] | 406 | |
Ravi Chandra Sadineni | 6ae8b50 | 2019-06-18 10:10:19 -0700 | [diff] [blame] | 407 | google_chromeec_clear_events_b(events); |
Furquan Shaikh | 2749c52 | 2017-10-04 14:01:41 -0700 | [diff] [blame] | 408 | } |
| 409 | |
| 410 | void google_chromeec_events_init(const struct google_chromeec_event_info *info, |
| 411 | bool is_s3_wakeup) |
| 412 | { |
| 413 | if (is_s3_wakeup) { |
| 414 | google_chromeec_log_events(info->log_events | |
| 415 | info->s3_wake_events); |
| 416 | |
| 417 | /* Log and clear device events that may wake the system. */ |
| 418 | google_chromeec_log_device_events(info->s3_device_events); |
| 419 | |
| 420 | /* Disable SMI and wake events. */ |
| 421 | google_chromeec_set_smi_mask(0); |
| 422 | |
Furquan Shaikh | 2749c52 | 2017-10-04 14:01:41 -0700 | [diff] [blame] | 423 | /* Restore SCI event mask. */ |
| 424 | google_chromeec_set_sci_mask(info->sci_events); |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 425 | |
| 426 | } else { |
Furquan Shaikh | 1a5b7c6 | 2018-05-30 11:51:23 -0700 | [diff] [blame] | 427 | google_chromeec_set_smi_mask(info->smi_events); |
| 428 | |
Furquan Shaikh | 2749c52 | 2017-10-04 14:01:41 -0700 | [diff] [blame] | 429 | google_chromeec_log_events(info->log_events | |
| 430 | info->s5_wake_events); |
Furquan Shaikh | 1a5b7c6 | 2018-05-30 11:51:23 -0700 | [diff] [blame] | 431 | |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 432 | if (google_chromeec_is_uhepi_supported()) |
| 433 | google_chromeec_set_lazy_wake_masks |
| 434 | (info->s5_wake_events, |
| 435 | info->s3_wake_events, |
| 436 | info->s0ix_wake_events); |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 437 | } |
Furquan Shaikh | 2749c52 | 2017-10-04 14:01:41 -0700 | [diff] [blame] | 438 | |
| 439 | /* Clear wake event mask. */ |
| 440 | google_chromeec_set_wake_mask(0); |
| 441 | } |
| 442 | |
Duncan Laurie | e2cea4f | 2015-12-01 19:14:09 -0800 | [diff] [blame] | 443 | int google_chromeec_check_feature(int feature) |
| 444 | { |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 445 | struct ec_response_get_features resp = {}; |
| 446 | struct chromeec_command cmd = { |
| 447 | .cmd_code = EC_CMD_GET_FEATURES, |
| 448 | .cmd_version = 0, |
| 449 | .cmd_size_in = 0, |
| 450 | .cmd_data_out = &resp, |
| 451 | .cmd_size_out = sizeof(resp), |
| 452 | .cmd_dev_index = 0, |
| 453 | }; |
Duncan Laurie | e2cea4f | 2015-12-01 19:14:09 -0800 | [diff] [blame] | 454 | |
| 455 | if (google_chromeec_command(&cmd) != 0) |
| 456 | return -1; |
| 457 | |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 458 | if (feature >= 8 * sizeof(resp.flags)) |
Duncan Laurie | e2cea4f | 2015-12-01 19:14:09 -0800 | [diff] [blame] | 459 | return -1; |
| 460 | |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 461 | return resp.flags[feature / 32] & EC_FEATURE_MASK_0(feature); |
Duncan Laurie | e2cea4f | 2015-12-01 19:14:09 -0800 | [diff] [blame] | 462 | } |
| 463 | |
Tim Wawrzynczak | 1966b5c80 | 2019-10-21 13:09:09 -0600 | [diff] [blame] | 464 | int google_chromeec_get_cmd_versions(int command, uint32_t *pmask) |
| 465 | { |
| 466 | struct ec_params_get_cmd_versions_v1 params = { |
| 467 | .cmd = command, |
| 468 | }; |
| 469 | struct ec_response_get_cmd_versions resp = {}; |
| 470 | struct chromeec_command cmd = { |
| 471 | .cmd_code = EC_CMD_GET_CMD_VERSIONS, |
| 472 | .cmd_version = 1, |
| 473 | .cmd_size_in = sizeof(params), |
| 474 | .cmd_data_in = ¶ms, |
| 475 | .cmd_size_out = sizeof(resp), |
| 476 | .cmd_data_out = &resp, |
| 477 | .cmd_dev_index = 0, |
| 478 | }; |
| 479 | |
| 480 | if (google_chromeec_command(&cmd) != 0) |
| 481 | return -1; |
| 482 | |
| 483 | *pmask = resp.version_mask; |
| 484 | return 0; |
| 485 | } |
| 486 | |
| 487 | int google_chromeec_get_vboot_hash(uint32_t offset, |
| 488 | struct ec_response_vboot_hash *resp) |
| 489 | { |
| 490 | struct ec_params_vboot_hash params = { |
| 491 | .cmd = EC_VBOOT_HASH_GET, |
| 492 | .offset = offset, |
| 493 | }; |
| 494 | struct chromeec_command cmd = { |
| 495 | .cmd_code = EC_CMD_VBOOT_HASH, |
| 496 | .cmd_version = 0, |
| 497 | .cmd_size_in = sizeof(params), |
| 498 | .cmd_data_in = ¶ms, |
| 499 | .cmd_size_out = sizeof(*resp), |
| 500 | .cmd_data_out = resp, |
| 501 | .cmd_dev_index = 0, |
| 502 | }; |
| 503 | |
| 504 | if (google_chromeec_command(&cmd) != 0) |
| 505 | return -1; |
| 506 | |
| 507 | return 0; |
| 508 | } |
| 509 | |
| 510 | int google_chromeec_start_vboot_hash(enum ec_vboot_hash_type hash_type, |
| 511 | uint32_t hash_offset, |
| 512 | struct ec_response_vboot_hash *resp) |
| 513 | { |
| 514 | struct ec_params_vboot_hash params = { |
| 515 | .cmd = EC_VBOOT_HASH_START, |
| 516 | .hash_type = hash_type, |
| 517 | .nonce_size = 0, |
| 518 | .offset = hash_offset, |
| 519 | }; |
| 520 | struct chromeec_command cmd = { |
| 521 | .cmd_code = EC_CMD_VBOOT_HASH, |
| 522 | .cmd_version = 0, |
| 523 | .cmd_size_in = sizeof(params), |
| 524 | .cmd_data_in = ¶ms, |
| 525 | .cmd_size_out = sizeof(*resp), |
| 526 | .cmd_data_out = resp, |
| 527 | .cmd_dev_index = 0, |
| 528 | }; |
| 529 | |
| 530 | if (google_chromeec_command(&cmd) != 0) |
| 531 | return -1; |
| 532 | |
| 533 | return 0; |
| 534 | } |
| 535 | |
| 536 | int google_chromeec_flash_protect(uint32_t mask, uint32_t flags, |
| 537 | struct ec_response_flash_protect *resp) |
| 538 | { |
| 539 | struct ec_params_flash_protect params = { |
| 540 | .mask = mask, |
| 541 | .flags = flags, |
| 542 | }; |
| 543 | struct chromeec_command cmd = { |
| 544 | .cmd_code = EC_CMD_FLASH_PROTECT, |
| 545 | .cmd_version = EC_VER_FLASH_PROTECT, |
| 546 | .cmd_size_in = sizeof(params), |
| 547 | .cmd_data_in = ¶ms, |
| 548 | .cmd_size_out = sizeof(*resp), |
| 549 | .cmd_data_out = resp, |
| 550 | .cmd_dev_index = 0, |
| 551 | }; |
| 552 | |
| 553 | if (google_chromeec_command(&cmd) != 0) |
| 554 | return -1; |
| 555 | |
| 556 | return 0; |
| 557 | } |
| 558 | |
| 559 | int google_chromeec_flash_region_info(enum ec_flash_region region, |
| 560 | uint32_t *offset, uint32_t *size) |
| 561 | { |
| 562 | struct ec_params_flash_region_info params = { |
| 563 | .region = region, |
| 564 | }; |
| 565 | struct ec_response_flash_region_info resp = {}; |
| 566 | struct chromeec_command cmd = { |
| 567 | .cmd_code = EC_CMD_FLASH_REGION_INFO, |
| 568 | .cmd_version = EC_VER_FLASH_REGION_INFO, |
| 569 | .cmd_size_in = sizeof(params), |
| 570 | .cmd_data_in = ¶ms, |
| 571 | .cmd_size_out = sizeof(resp), |
| 572 | .cmd_data_out = &resp, |
| 573 | .cmd_dev_index = 0, |
| 574 | }; |
| 575 | |
| 576 | if (google_chromeec_command(&cmd) != 0) |
| 577 | return -1; |
| 578 | |
| 579 | if (offset) |
| 580 | *offset = resp.offset; |
| 581 | if (size) |
| 582 | *size = resp.size; |
| 583 | |
| 584 | return 0; |
| 585 | } |
| 586 | |
| 587 | int google_chromeec_flash_erase(uint32_t offset, uint32_t size) |
| 588 | { |
| 589 | struct ec_params_flash_erase params = { |
| 590 | .offset = offset, |
| 591 | .size = size, |
| 592 | }; |
| 593 | struct chromeec_command cmd = { |
| 594 | .cmd_code = EC_CMD_FLASH_ERASE, |
| 595 | .cmd_version = 0, |
| 596 | .cmd_size_in = sizeof(params), |
| 597 | .cmd_data_in = ¶ms, |
| 598 | .cmd_size_out = 0, |
| 599 | .cmd_data_out = NULL, |
| 600 | .cmd_dev_index = 0, |
| 601 | }; |
| 602 | |
| 603 | if (google_chromeec_command(&cmd) != 0) |
| 604 | return -1; |
| 605 | |
| 606 | return 0; |
| 607 | } |
| 608 | |
| 609 | int google_chromeec_flash_info(struct ec_response_flash_info *info) |
| 610 | { |
| 611 | struct chromeec_command cmd; |
| 612 | |
| 613 | cmd.cmd_code = EC_CMD_FLASH_INFO; |
| 614 | cmd.cmd_version = 0; |
| 615 | cmd.cmd_size_in = 0; |
| 616 | cmd.cmd_data_in = NULL; |
| 617 | cmd.cmd_size_out = sizeof(*info); |
| 618 | cmd.cmd_data_out = info; |
| 619 | cmd.cmd_dev_index = 0; |
| 620 | |
| 621 | if (google_chromeec_command(&cmd) != 0) |
| 622 | return -1; |
| 623 | |
| 624 | return 0; |
| 625 | } |
| 626 | |
| 627 | /* |
| 628 | * Write a block into EC flash. Expects params_data to be a buffer where |
| 629 | * the first N bytes are a struct ec_params_flash_write, and the rest of it |
| 630 | * is the data to write to flash. |
| 631 | */ |
| 632 | int google_chromeec_flash_write_block(const uint8_t *params_data, |
| 633 | uint32_t bufsize) |
| 634 | { |
| 635 | struct chromeec_command cmd = { |
| 636 | .cmd_code = EC_CMD_FLASH_WRITE, |
| 637 | .cmd_version = EC_VER_FLASH_WRITE, |
| 638 | .cmd_size_out = 0, |
| 639 | .cmd_data_out = NULL, |
| 640 | .cmd_size_in = bufsize, |
| 641 | .cmd_data_in = params_data, |
| 642 | .cmd_dev_index = 0, |
| 643 | }; |
| 644 | |
| 645 | assert(params_data); |
| 646 | |
| 647 | return google_chromeec_command(&cmd); |
| 648 | } |
| 649 | |
| 650 | /* |
| 651 | * EFS verification of flash. |
| 652 | */ |
| 653 | int google_chromeec_efs_verify(enum ec_flash_region region) |
| 654 | { |
| 655 | struct ec_params_efs_verify params = { |
| 656 | .region = region, |
| 657 | }; |
| 658 | struct chromeec_command cmd = { |
| 659 | .cmd_code = EC_CMD_EFS_VERIFY, |
| 660 | .cmd_version = 0, |
| 661 | .cmd_size_in = sizeof(params), |
| 662 | .cmd_data_in = ¶ms, |
| 663 | .cmd_size_out = 0, |
| 664 | .cmd_data_out = NULL, |
| 665 | .cmd_dev_index = 0, |
| 666 | }; |
| 667 | int rv; |
| 668 | |
| 669 | /* It's okay if the EC doesn't support EFS */ |
| 670 | rv = google_chromeec_command(&cmd); |
| 671 | if (rv != 0 && (cmd.cmd_code == EC_RES_INVALID_COMMAND)) |
| 672 | return 0; |
| 673 | else if (rv != 0) |
| 674 | return -1; |
| 675 | |
| 676 | return 0; |
| 677 | } |
| 678 | |
| 679 | int google_chromeec_battery_cutoff(uint8_t flags) |
| 680 | { |
| 681 | struct ec_params_battery_cutoff params = { |
| 682 | .flags = flags, |
| 683 | }; |
| 684 | struct chromeec_command cmd = { |
| 685 | .cmd_code = EC_CMD_BATTERY_CUT_OFF, |
| 686 | .cmd_version = 1, |
| 687 | .cmd_size_in = sizeof(params), |
| 688 | .cmd_data_in = ¶ms, |
| 689 | .cmd_data_out = NULL, |
| 690 | .cmd_size_out = 0, |
| 691 | .cmd_dev_index = 0, |
| 692 | }; |
| 693 | |
| 694 | if (google_chromeec_command(&cmd) != 0) |
| 695 | return -1; |
| 696 | |
| 697 | return 0; |
| 698 | } |
| 699 | |
| 700 | int google_chromeec_read_limit_power_request(int *limit_power) |
| 701 | { |
| 702 | struct ec_params_charge_state params = { |
| 703 | .cmd = CHARGE_STATE_CMD_GET_PARAM, |
| 704 | .get_param.param = CS_PARAM_LIMIT_POWER, |
| 705 | }; |
| 706 | struct ec_response_charge_state resp = {}; |
| 707 | struct chromeec_command cmd = { |
| 708 | .cmd_code = EC_CMD_CHARGE_STATE, |
| 709 | .cmd_version = 0, |
| 710 | .cmd_size_in = sizeof(params), |
| 711 | .cmd_data_in = ¶ms, |
| 712 | .cmd_size_out = sizeof(resp), |
| 713 | .cmd_data_out = &resp, |
| 714 | .cmd_dev_index = 0, |
| 715 | }; |
Tim Wawrzynczak | 0d9fb55 | 2019-12-25 19:14:30 +1100 | [diff] [blame] | 716 | int rv; |
Tim Wawrzynczak | 1966b5c80 | 2019-10-21 13:09:09 -0600 | [diff] [blame] | 717 | |
Tim Wawrzynczak | 0d9fb55 | 2019-12-25 19:14:30 +1100 | [diff] [blame] | 718 | rv = google_chromeec_command(&cmd); |
Rizwan Qureshi | cf42578 | 2019-12-27 21:41:07 +0530 | [diff] [blame] | 719 | |
| 720 | if (rv != 0 && (cmd.cmd_code == EC_RES_INVALID_COMMAND || |
| 721 | cmd.cmd_code == EC_RES_INVALID_PARAM)) { |
Tim Wawrzynczak | 0d9fb55 | 2019-12-25 19:14:30 +1100 | [diff] [blame] | 722 | printk(BIOS_INFO, "PARAM_LIMIT_POWER not supported by EC.\n"); |
| 723 | *limit_power = 0; |
| 724 | return 0; |
Rizwan Qureshi | cf42578 | 2019-12-27 21:41:07 +0530 | [diff] [blame] | 725 | } else if (rv != 0) { |
| 726 | return -1; |
Tim Wawrzynczak | 0d9fb55 | 2019-12-25 19:14:30 +1100 | [diff] [blame] | 727 | } |
Tim Wawrzynczak | 1966b5c80 | 2019-10-21 13:09:09 -0600 | [diff] [blame] | 728 | |
| 729 | *limit_power = resp.get_param.value; |
Rizwan Qureshi | cf42578 | 2019-12-27 21:41:07 +0530 | [diff] [blame] | 730 | |
| 731 | return 0; |
Tim Wawrzynczak | 1966b5c80 | 2019-10-21 13:09:09 -0600 | [diff] [blame] | 732 | } |
| 733 | |
| 734 | int google_chromeec_get_protocol_info( |
| 735 | struct ec_response_get_protocol_info *resp) |
| 736 | { |
| 737 | struct chromeec_command cmd = { |
| 738 | .cmd_code = EC_CMD_GET_PROTOCOL_INFO, |
| 739 | .cmd_version = 0, |
| 740 | .cmd_size_in = 0, |
| 741 | .cmd_data_in = NULL, |
| 742 | .cmd_data_out = resp, |
| 743 | .cmd_size_out = sizeof(*resp), |
| 744 | .cmd_dev_index = 0, |
| 745 | }; |
| 746 | |
| 747 | if (google_chromeec_command(&cmd)) |
| 748 | return -1; |
| 749 | |
| 750 | return 0; |
| 751 | } |
| 752 | |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 753 | int google_chromeec_set_sku_id(uint32_t skuid) |
Kevin Chiu | e2bb059 | 2017-09-12 09:13:41 +0800 | [diff] [blame] | 754 | { |
Tim Wawrzynczak | 1966b5c80 | 2019-10-21 13:09:09 -0600 | [diff] [blame] | 755 | struct ec_sku_id_info params = { |
Kevin Chiu | e2bb059 | 2017-09-12 09:13:41 +0800 | [diff] [blame] | 756 | .sku_id = skuid |
| 757 | }; |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 758 | struct chromeec_command cmd = { |
| 759 | .cmd_code = EC_CMD_SET_SKU_ID, |
| 760 | .cmd_version = 0, |
Tim Wawrzynczak | 1966b5c80 | 2019-10-21 13:09:09 -0600 | [diff] [blame] | 761 | .cmd_size_in = sizeof(params), |
| 762 | .cmd_data_in = ¶ms, |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 763 | .cmd_data_out = NULL, |
| 764 | .cmd_size_out = 0, |
| 765 | .cmd_dev_index = 0, |
| 766 | }; |
Kevin Chiu | e2bb059 | 2017-09-12 09:13:41 +0800 | [diff] [blame] | 767 | |
| 768 | if (google_chromeec_command(&cmd) != 0) |
| 769 | return -1; |
| 770 | |
| 771 | return 0; |
| 772 | } |
| 773 | |
Julius Werner | cd49cce | 2019-03-05 16:53:33 -0800 | [diff] [blame] | 774 | #if CONFIG(EC_GOOGLE_CHROMEEC_RTC) |
Simon Glass | 7865932 | 2016-06-10 20:58:24 -0600 | [diff] [blame] | 775 | int rtc_get(struct rtc_time *time) |
| 776 | { |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 777 | struct ec_response_rtc resp = {}; |
| 778 | struct chromeec_command cmd = { |
| 779 | .cmd_code = EC_CMD_RTC_GET_VALUE, |
| 780 | .cmd_version = 0, |
| 781 | .cmd_size_in = 0, |
| 782 | .cmd_data_out = &resp, |
| 783 | .cmd_size_out = sizeof(resp), |
| 784 | .cmd_dev_index = 0, |
| 785 | }; |
Simon Glass | 7865932 | 2016-06-10 20:58:24 -0600 | [diff] [blame] | 786 | |
| 787 | if (google_chromeec_command(&cmd) != 0) |
| 788 | return -1; |
| 789 | |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 790 | return rtc_to_tm(resp.time, time); |
Simon Glass | 7865932 | 2016-06-10 20:58:24 -0600 | [diff] [blame] | 791 | } |
| 792 | #endif |
| 793 | |
Aaron Durbin | e68d22f | 2017-05-04 12:32:52 -0500 | [diff] [blame] | 794 | int google_chromeec_reboot(int dev_idx, enum ec_reboot_cmd type, uint8_t flags) |
| 795 | { |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 796 | struct ec_params_reboot_ec params = { |
Aaron Durbin | e68d22f | 2017-05-04 12:32:52 -0500 | [diff] [blame] | 797 | .cmd = type, |
| 798 | .flags = flags, |
| 799 | }; |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 800 | struct ec_response_get_version resp = {}; |
| 801 | struct chromeec_command cmd = { |
Aaron Durbin | e68d22f | 2017-05-04 12:32:52 -0500 | [diff] [blame] | 802 | .cmd_code = EC_CMD_REBOOT_EC, |
| 803 | .cmd_version = 0, |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 804 | .cmd_data_in = ¶ms, |
| 805 | .cmd_data_out = &resp, |
| 806 | .cmd_size_in = sizeof(params), |
Aaron Durbin | e68d22f | 2017-05-04 12:32:52 -0500 | [diff] [blame] | 807 | .cmd_size_out = 0, /* ignore response, if any */ |
| 808 | .cmd_dev_index = dev_idx, |
| 809 | }; |
| 810 | |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 811 | return google_chromeec_command(&cmd); |
Aaron Durbin | e68d22f | 2017-05-04 12:32:52 -0500 | [diff] [blame] | 812 | } |
| 813 | |
Jonathan Brandmeyer | 6bffc5c | 2018-07-23 16:30:44 -0600 | [diff] [blame] | 814 | static int cbi_get_uint32(uint32_t *id, uint32_t tag) |
Daisuke Nojiri | 07f9748f | 2018-02-01 07:46:02 -0800 | [diff] [blame] | 815 | { |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 816 | struct ec_params_get_cbi params = { |
| 817 | .tag = tag, |
| 818 | }; |
Zhuohao Lee | 7824d9b | 2018-03-30 10:18:04 +0800 | [diff] [blame] | 819 | uint32_t r = 0; |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 820 | struct chromeec_command cmd = { |
| 821 | .cmd_code = EC_CMD_GET_CROS_BOARD_INFO, |
| 822 | .cmd_version = 0, |
| 823 | .cmd_data_in = ¶ms, |
| 824 | .cmd_data_out = &r, |
| 825 | .cmd_size_in = sizeof(params), |
| 826 | .cmd_size_out = sizeof(r), |
| 827 | .cmd_dev_index = 0, |
| 828 | }; |
Daisuke Nojiri | 07f9748f | 2018-02-01 07:46:02 -0800 | [diff] [blame] | 829 | int rv; |
| 830 | |
Daisuke Nojiri | 07f9748f | 2018-02-01 07:46:02 -0800 | [diff] [blame] | 831 | rv = google_chromeec_command(&cmd); |
YH Lin | 40f6542 | 2019-02-26 09:56:06 -0800 | [diff] [blame] | 832 | if (rv != 0) |
Daisuke Nojiri | 07f9748f | 2018-02-01 07:46:02 -0800 | [diff] [blame] | 833 | return rv; |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 834 | |
Daisuke Nojiri | 07f9748f | 2018-02-01 07:46:02 -0800 | [diff] [blame] | 835 | *id = r; |
| 836 | return 0; |
| 837 | } |
| 838 | |
| 839 | int google_chromeec_cbi_get_sku_id(uint32_t *id) |
| 840 | { |
Daisuke Nojiri | f984a05 | 2018-02-15 12:38:15 -0800 | [diff] [blame] | 841 | return cbi_get_uint32(id, CBI_TAG_SKU_ID); |
Daisuke Nojiri | 07f9748f | 2018-02-01 07:46:02 -0800 | [diff] [blame] | 842 | } |
| 843 | |
Tim Wawrzynczak | 24b4af6 | 2020-10-01 15:41:31 -0600 | [diff] [blame] | 844 | int google_chromeec_cbi_get_fw_config(uint64_t *fw_config) |
Jett Rink | 8db8a61 | 2020-01-14 11:41:47 -0700 | [diff] [blame] | 845 | { |
Tim Wawrzynczak | 24b4af6 | 2020-10-01 15:41:31 -0600 | [diff] [blame] | 846 | uint32_t config; |
| 847 | |
| 848 | if (cbi_get_uint32(&config, CBI_TAG_FW_CONFIG)) |
| 849 | return -1; |
| 850 | |
Tim Wawrzynczak | 24b4af6 | 2020-10-01 15:41:31 -0600 | [diff] [blame] | 851 | *fw_config = (uint64_t)config; |
Karthikeyan Ramasubramanian | 8672884 | 2021-02-25 00:29:14 -0700 | [diff] [blame] | 852 | /* |
| 853 | * If SSFC is configured to be part of FW_CONFIG, add it at the most significant |
| 854 | * 32 bits. |
| 855 | */ |
| 856 | if (CONFIG(EC_GOOGLE_CHROMEEC_INCLUDE_SSFC_IN_FW_CONFIG)) { |
| 857 | uint32_t ssfc; |
| 858 | |
Kangheui Won | 082be10 | 2021-04-09 15:37:15 +1000 | [diff] [blame] | 859 | if (!google_chromeec_cbi_get_ssfc(&ssfc)) |
| 860 | *fw_config |= (uint64_t)ssfc << 32; |
Karthikeyan Ramasubramanian | 8672884 | 2021-02-25 00:29:14 -0700 | [diff] [blame] | 861 | } |
Tim Wawrzynczak | 24b4af6 | 2020-10-01 15:41:31 -0600 | [diff] [blame] | 862 | return 0; |
Jett Rink | 8db8a61 | 2020-01-14 11:41:47 -0700 | [diff] [blame] | 863 | } |
| 864 | |
Daisuke Nojiri | 07f9748f | 2018-02-01 07:46:02 -0800 | [diff] [blame] | 865 | int google_chromeec_cbi_get_oem_id(uint32_t *id) |
| 866 | { |
Daisuke Nojiri | f984a05 | 2018-02-15 12:38:15 -0800 | [diff] [blame] | 867 | return cbi_get_uint32(id, CBI_TAG_OEM_ID); |
Daisuke Nojiri | 07f9748f | 2018-02-01 07:46:02 -0800 | [diff] [blame] | 868 | } |
| 869 | |
Aaron Durbin | 5352577 | 2020-04-13 22:24:09 -0600 | [diff] [blame] | 870 | int google_chromeec_cbi_get_board_version(uint32_t *version) |
| 871 | { |
| 872 | return cbi_get_uint32(version, CBI_TAG_BOARD_VERSION); |
| 873 | } |
| 874 | |
Marco Chen | 525cc46 | 2020-12-11 14:29:23 +0800 | [diff] [blame] | 875 | int google_chromeec_cbi_get_ssfc(uint32_t *ssfc) |
| 876 | { |
| 877 | return cbi_get_uint32(ssfc, CBI_TAG_SSFC); |
| 878 | } |
| 879 | |
Wisley Chen | c1efec7 | 2018-11-06 09:28:23 +0800 | [diff] [blame] | 880 | 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] | 881 | { |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 882 | struct ec_params_get_cbi params = { |
Wisley Chen | c1efec7 | 2018-11-06 09:28:23 +0800 | [diff] [blame] | 883 | .tag = tag, |
Aaron Durbin | b388c0e | 2018-08-07 12:24:21 -0600 | [diff] [blame] | 884 | }; |
| 885 | struct chromeec_command cmd = { |
| 886 | .cmd_code = EC_CMD_GET_CROS_BOARD_INFO, |
| 887 | .cmd_version = 0, |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 888 | .cmd_data_in = ¶ms, |
Aaron Durbin | b388c0e | 2018-08-07 12:24:21 -0600 | [diff] [blame] | 889 | .cmd_data_out = buf, |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 890 | .cmd_size_in = sizeof(params), |
Aaron Durbin | b388c0e | 2018-08-07 12:24:21 -0600 | [diff] [blame] | 891 | .cmd_size_out = bufsize, |
| 892 | }; |
| 893 | int rv; |
| 894 | |
| 895 | rv = google_chromeec_command(&cmd); |
YH Lin | 40f6542 | 2019-02-26 09:56:06 -0800 | [diff] [blame] | 896 | if (rv != 0) |
Aaron Durbin | b388c0e | 2018-08-07 12:24:21 -0600 | [diff] [blame] | 897 | return rv; |
| 898 | |
| 899 | /* Ensure NUL termination. */ |
| 900 | buf[bufsize - 1] = '\0'; |
| 901 | |
| 902 | return 0; |
| 903 | } |
| 904 | |
Wisley Chen | c1efec7 | 2018-11-06 09:28:23 +0800 | [diff] [blame] | 905 | int google_chromeec_cbi_get_dram_part_num(char *buf, size_t bufsize) |
| 906 | { |
| 907 | return cbi_get_string(buf, bufsize, CBI_TAG_DRAM_PART_NUM); |
| 908 | } |
| 909 | |
| 910 | int google_chromeec_cbi_get_oem_name(char *buf, size_t bufsize) |
| 911 | { |
| 912 | return cbi_get_string(buf, bufsize, CBI_TAG_OEM_NAME); |
| 913 | } |
| 914 | |
Karthikeyan Ramasubramanian | c80ff84 | 2018-09-17 16:19:34 -0600 | [diff] [blame] | 915 | int google_chromeec_get_board_version(uint32_t *version) |
Shawn Nematbakhsh | d0a6a38 | 2013-07-08 14:18:01 -0700 | [diff] [blame] | 916 | { |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 917 | struct ec_response_board_version resp; |
| 918 | struct chromeec_command cmd = { |
| 919 | .cmd_code = EC_CMD_GET_BOARD_VERSION, |
| 920 | .cmd_version = 0, |
| 921 | .cmd_size_in = 0, |
| 922 | .cmd_size_out = sizeof(resp), |
| 923 | .cmd_data_out = &resp, |
| 924 | .cmd_dev_index = 0, |
| 925 | }; |
Shawn Nematbakhsh | d0a6a38 | 2013-07-08 14:18:01 -0700 | [diff] [blame] | 926 | |
Karthikeyan Ramasubramanian | c80ff84 | 2018-09-17 16:19:34 -0600 | [diff] [blame] | 927 | if (google_chromeec_command(&cmd)) |
| 928 | return -1; |
Shawn Nematbakhsh | d0a6a38 | 2013-07-08 14:18:01 -0700 | [diff] [blame] | 929 | |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 930 | *version = resp.board_version; |
Karthikeyan Ramasubramanian | c80ff84 | 2018-09-17 16:19:34 -0600 | [diff] [blame] | 931 | return 0; |
Shawn Nematbakhsh | d0a6a38 | 2013-07-08 14:18:01 -0700 | [diff] [blame] | 932 | } |
Stefan Reinauer | aaaf689 | 2013-08-29 15:57:11 -0700 | [diff] [blame] | 933 | |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 934 | uint32_t google_chromeec_get_sku_id(void) |
Patrick Georgi | 69206d9 | 2017-07-31 14:20:07 +0200 | [diff] [blame] | 935 | { |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 936 | struct ec_sku_id_info resp; |
| 937 | struct chromeec_command cmd = { |
| 938 | .cmd_code = EC_CMD_GET_SKU_ID, |
| 939 | .cmd_version = 0, |
| 940 | .cmd_size_in = 0, |
| 941 | .cmd_size_out = sizeof(resp), |
| 942 | .cmd_data_out = &resp, |
| 943 | .cmd_dev_index = 0, |
| 944 | }; |
Patrick Georgi | 69206d9 | 2017-07-31 14:20:07 +0200 | [diff] [blame] | 945 | |
| 946 | if (google_chromeec_command(&cmd) != 0) |
| 947 | return 0; |
| 948 | |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 949 | return resp.sku_id; |
Patrick Georgi | 69206d9 | 2017-07-31 14:20:07 +0200 | [diff] [blame] | 950 | } |
| 951 | |
Stefan Reinauer | aaaf689 | 2013-08-29 15:57:11 -0700 | [diff] [blame] | 952 | int google_chromeec_vbnv_context(int is_read, uint8_t *data, int len) |
| 953 | { |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 954 | struct ec_params_vbnvcontext params = { |
| 955 | .op = is_read ? EC_VBNV_CONTEXT_OP_READ : |
| 956 | EC_VBNV_CONTEXT_OP_WRITE, |
| 957 | }; |
| 958 | struct ec_response_vbnvcontext resp = {}; |
| 959 | struct chromeec_command cmd = { |
| 960 | .cmd_code = EC_CMD_VBNV_CONTEXT, |
| 961 | .cmd_version = EC_VER_VBNV_CONTEXT, |
| 962 | .cmd_data_in = ¶ms, |
| 963 | .cmd_data_out = &resp, |
| 964 | .cmd_size_in = sizeof(params), |
| 965 | .cmd_size_out = is_read ? sizeof(resp) : 0, |
| 966 | .cmd_dev_index = 0, |
| 967 | }; |
Julius Werner | 02e847b | 2015-02-20 13:36:11 -0800 | [diff] [blame] | 968 | int retries = 3; |
Stefan Reinauer | aaaf689 | 2013-08-29 15:57:11 -0700 | [diff] [blame] | 969 | |
| 970 | if (len != EC_VBNV_BLOCK_SIZE) |
| 971 | return -1; |
| 972 | |
Stefan Reinauer | aaaf689 | 2013-08-29 15:57:11 -0700 | [diff] [blame] | 973 | if (!is_read) |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 974 | memcpy(¶ms.block, data, EC_VBNV_BLOCK_SIZE); |
| 975 | retry: |
Stefan Reinauer | aaaf689 | 2013-08-29 15:57:11 -0700 | [diff] [blame] | 976 | |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 977 | if (google_chromeec_command(&cmd)) { |
Julius Werner | 02e847b | 2015-02-20 13:36:11 -0800 | [diff] [blame] | 978 | printk(BIOS_ERR, "ERROR: failed to %s vbnv_ec context: %d\n", |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 979 | is_read ? "read" : "write", (int)cmd.cmd_code); |
Julius Werner | 02e847b | 2015-02-20 13:36:11 -0800 | [diff] [blame] | 980 | mdelay(10); /* just in case */ |
| 981 | if (--retries) |
| 982 | goto retry; |
| 983 | } |
Stefan Reinauer | aaaf689 | 2013-08-29 15:57:11 -0700 | [diff] [blame] | 984 | |
| 985 | if (is_read) |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 986 | memcpy(data, &resp.block, EC_VBNV_BLOCK_SIZE); |
Stefan Reinauer | aaaf689 | 2013-08-29 15:57:11 -0700 | [diff] [blame] | 987 | |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 988 | return cmd.cmd_code; |
Stefan Reinauer | aaaf689 | 2013-08-29 15:57:11 -0700 | [diff] [blame] | 989 | } |
| 990 | |
You-Cheng Syu | 85bb874 | 2019-03-12 13:02:18 +0800 | [diff] [blame] | 991 | static uint16_t google_chromeec_get_uptime_info( |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 992 | struct ec_response_uptime_info *resp) |
You-Cheng Syu | 85bb874 | 2019-03-12 13:02:18 +0800 | [diff] [blame] | 993 | { |
| 994 | struct chromeec_command cmd = { |
| 995 | .cmd_code = EC_CMD_GET_UPTIME_INFO, |
| 996 | .cmd_version = 0, |
| 997 | .cmd_data_in = NULL, |
| 998 | .cmd_size_in = 0, |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 999 | .cmd_data_out = resp, |
| 1000 | .cmd_size_out = sizeof(*resp), |
You-Cheng Syu | 85bb874 | 2019-03-12 13:02:18 +0800 | [diff] [blame] | 1001 | .cmd_dev_index = 0, |
| 1002 | }; |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 1003 | |
You-Cheng Syu | 85bb874 | 2019-03-12 13:02:18 +0800 | [diff] [blame] | 1004 | google_chromeec_command(&cmd); |
| 1005 | return cmd.cmd_code; |
| 1006 | } |
| 1007 | |
| 1008 | bool google_chromeec_get_ap_watchdog_flag(void) |
| 1009 | { |
Yu-Ping Wu | 8a82ea9 | 2021-01-05 17:05:40 +0800 | [diff] [blame] | 1010 | int i; |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 1011 | struct ec_response_uptime_info resp; |
Yu-Ping Wu | 8a82ea9 | 2021-01-05 17:05:40 +0800 | [diff] [blame] | 1012 | |
| 1013 | if (google_chromeec_get_uptime_info(&resp)) |
| 1014 | return false; |
| 1015 | |
| 1016 | if (resp.ec_reset_flags & EC_RESET_FLAG_AP_WATCHDOG) |
| 1017 | return true; |
| 1018 | |
| 1019 | /* Find the last valid entry */ |
| 1020 | for (i = ARRAY_SIZE(resp.recent_ap_reset) - 1; i >= 0; i--) { |
| 1021 | if (resp.recent_ap_reset[i].reset_time_ms == 0) |
| 1022 | continue; |
| 1023 | return (resp.recent_ap_reset[i].reset_cause == |
| 1024 | CHIPSET_RESET_AP_WATCHDOG); |
| 1025 | } |
| 1026 | |
| 1027 | return false; |
You-Cheng Syu | 85bb874 | 2019-03-12 13:02:18 +0800 | [diff] [blame] | 1028 | } |
| 1029 | |
Gabe Black | 9f96aa6 | 2013-06-28 14:24:33 -0700 | [diff] [blame] | 1030 | int google_chromeec_i2c_xfer(uint8_t chip, uint8_t addr, int alen, |
| 1031 | uint8_t *buffer, int len, int is_read) |
| 1032 | { |
| 1033 | union { |
| 1034 | struct ec_params_i2c_passthru p; |
| 1035 | uint8_t outbuf[EC_HOST_PARAM_SIZE]; |
| 1036 | } params; |
| 1037 | union { |
| 1038 | struct ec_response_i2c_passthru r; |
| 1039 | uint8_t inbuf[EC_HOST_PARAM_SIZE]; |
| 1040 | } response; |
| 1041 | struct ec_params_i2c_passthru *p = ¶ms.p; |
| 1042 | struct ec_response_i2c_passthru *r = &response.r; |
| 1043 | struct ec_params_i2c_passthru_msg *msg = p->msg; |
| 1044 | struct chromeec_command cmd; |
| 1045 | uint8_t *pdata; |
| 1046 | int read_len, write_len; |
| 1047 | int size; |
| 1048 | int rv; |
| 1049 | |
| 1050 | p->port = 0; |
| 1051 | |
| 1052 | if (alen != 1) { |
| 1053 | printk(BIOS_ERR, "Unsupported address length %d\n", alen); |
| 1054 | return -1; |
| 1055 | } |
| 1056 | if (is_read) { |
| 1057 | read_len = len; |
| 1058 | write_len = alen; |
| 1059 | p->num_msgs = 2; |
| 1060 | } else { |
| 1061 | read_len = 0; |
| 1062 | write_len = alen + len; |
| 1063 | p->num_msgs = 1; |
| 1064 | } |
| 1065 | |
| 1066 | size = sizeof(*p) + p->num_msgs * sizeof(*msg); |
| 1067 | if (size + write_len > sizeof(params)) { |
| 1068 | printk(BIOS_ERR, "Params too large for buffer\n"); |
| 1069 | return -1; |
| 1070 | } |
| 1071 | if (sizeof(*r) + read_len > sizeof(response)) { |
| 1072 | printk(BIOS_ERR, "Read length too big for buffer\n"); |
| 1073 | return -1; |
| 1074 | } |
| 1075 | |
| 1076 | /* Create a message to write the register address and optional data */ |
| 1077 | pdata = (uint8_t *)p + size; |
| 1078 | msg->addr_flags = chip; |
| 1079 | msg->len = write_len; |
| 1080 | pdata[0] = addr; |
| 1081 | if (!is_read) |
| 1082 | memcpy(pdata + 1, buffer, len); |
| 1083 | msg++; |
| 1084 | |
| 1085 | if (read_len) { |
| 1086 | msg->addr_flags = chip | EC_I2C_FLAG_READ; |
| 1087 | msg->len = read_len; |
| 1088 | } |
| 1089 | |
| 1090 | cmd.cmd_code = EC_CMD_I2C_PASSTHRU; |
| 1091 | cmd.cmd_version = 0; |
| 1092 | cmd.cmd_data_in = p; |
| 1093 | cmd.cmd_size_in = size + write_len; |
| 1094 | cmd.cmd_data_out = r; |
| 1095 | cmd.cmd_size_out = sizeof(*r) + read_len; |
Duncan Laurie | fc0f517 | 2014-09-18 12:54:02 -0700 | [diff] [blame] | 1096 | cmd.cmd_dev_index = 0; |
Gabe Black | 9f96aa6 | 2013-06-28 14:24:33 -0700 | [diff] [blame] | 1097 | rv = google_chromeec_command(&cmd); |
| 1098 | if (rv != 0) |
| 1099 | return rv; |
| 1100 | |
| 1101 | /* Parse response */ |
| 1102 | if (r->i2c_status & EC_I2C_STATUS_ERROR) { |
| 1103 | printk(BIOS_ERR, "Transfer failed with status=0x%x\n", |
| 1104 | r->i2c_status); |
| 1105 | return -1; |
| 1106 | } |
| 1107 | |
| 1108 | if (cmd.cmd_size_out < sizeof(*r) + read_len) { |
| 1109 | printk(BIOS_ERR, "Truncated read response\n"); |
| 1110 | return -1; |
| 1111 | } |
| 1112 | |
| 1113 | if (read_len) |
| 1114 | memcpy(buffer, r->data, read_len); |
| 1115 | |
| 1116 | return 0; |
| 1117 | } |
| 1118 | |
Furquan Shaikh | 8788fd6 | 2017-11-20 20:28:18 -0800 | [diff] [blame] | 1119 | int google_chromeec_set_sci_mask(uint64_t mask) |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 1120 | { |
Furquan Shaikh | 8788fd6 | 2017-11-20 20:28:18 -0800 | [diff] [blame] | 1121 | 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] | 1122 | return google_chromeec_set_mask(EC_HOST_EVENT_SCI_MASK, mask); |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 1123 | } |
| 1124 | |
Furquan Shaikh | 8788fd6 | 2017-11-20 20:28:18 -0800 | [diff] [blame] | 1125 | int google_chromeec_set_smi_mask(uint64_t mask) |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 1126 | { |
Furquan Shaikh | 8788fd6 | 2017-11-20 20:28:18 -0800 | [diff] [blame] | 1127 | 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] | 1128 | return google_chromeec_set_mask(EC_HOST_EVENT_SMI_MASK, mask); |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 1129 | } |
| 1130 | |
Furquan Shaikh | 8788fd6 | 2017-11-20 20:28:18 -0800 | [diff] [blame] | 1131 | int google_chromeec_set_wake_mask(uint64_t mask) |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 1132 | { |
Furquan Shaikh | 8788fd6 | 2017-11-20 20:28:18 -0800 | [diff] [blame] | 1133 | 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] | 1134 | return google_chromeec_set_mask |
| 1135 | (EC_HOST_EVENT_ACTIVE_WAKE_MASK, mask); |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 1136 | } |
| 1137 | |
Furquan Shaikh | 8788fd6 | 2017-11-20 20:28:18 -0800 | [diff] [blame] | 1138 | uint64_t google_chromeec_get_wake_mask(void) |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 1139 | { |
Jenny TC | 1dfc2c3 | 2017-12-14 14:24:39 +0530 | [diff] [blame] | 1140 | return google_chromeec_get_mask(EC_HOST_EVENT_ACTIVE_WAKE_MASK); |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 1141 | } |
| 1142 | |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 1143 | int google_chromeec_set_usb_charge_mode(uint8_t port_id, enum usb_charge_mode mode) |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 1144 | { |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 1145 | struct ec_params_usb_charge_set_mode params = { |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 1146 | .usb_port_id = port_id, |
| 1147 | .mode = mode, |
| 1148 | }; |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 1149 | struct chromeec_command cmd = { |
| 1150 | .cmd_code = EC_CMD_USB_CHARGE_SET_MODE, |
| 1151 | .cmd_version = 0, |
| 1152 | .cmd_size_in = sizeof(params), |
| 1153 | .cmd_data_in = ¶ms, |
| 1154 | .cmd_size_out = 0, |
| 1155 | .cmd_data_out = NULL, |
| 1156 | .cmd_dev_index = 0, |
| 1157 | }; |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 1158 | |
| 1159 | return google_chromeec_command(&cmd); |
| 1160 | } |
| 1161 | |
Gaggery Tsai | 52f18df | 2020-03-25 11:34:25 -0700 | [diff] [blame] | 1162 | /* Get charger voltage and current. Also returns type of charger */ |
Shelley Chen | ebd5330 | 2017-09-29 14:15:11 -0700 | [diff] [blame] | 1163 | int google_chromeec_get_usb_pd_power_info(enum usb_chg_type *type, |
Gaggery Tsai | 52f18df | 2020-03-25 11:34:25 -0700 | [diff] [blame] | 1164 | uint16_t *current_max, uint16_t *voltage_max) |
Shelley Chen | ebd5330 | 2017-09-29 14:15:11 -0700 | [diff] [blame] | 1165 | { |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 1166 | struct ec_params_usb_pd_power_info params = { |
Shelley Chen | ebd5330 | 2017-09-29 14:15:11 -0700 | [diff] [blame] | 1167 | .port = PD_POWER_CHARGING_PORT, |
| 1168 | }; |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 1169 | struct ec_response_usb_pd_power_info resp = {}; |
Shelley Chen | ebd5330 | 2017-09-29 14:15:11 -0700 | [diff] [blame] | 1170 | struct chromeec_command cmd = { |
| 1171 | .cmd_code = EC_CMD_USB_PD_POWER_INFO, |
| 1172 | .cmd_version = 0, |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 1173 | .cmd_data_in = ¶ms, |
| 1174 | .cmd_size_in = sizeof(params), |
| 1175 | .cmd_data_out = &resp, |
| 1176 | .cmd_size_out = sizeof(resp), |
Shelley Chen | ebd5330 | 2017-09-29 14:15:11 -0700 | [diff] [blame] | 1177 | .cmd_dev_index = 0, |
| 1178 | }; |
| 1179 | struct usb_chg_measures m; |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 1180 | int rv; |
| 1181 | |
| 1182 | rv = google_chromeec_command(&cmd); |
Shelley Chen | ebd5330 | 2017-09-29 14:15:11 -0700 | [diff] [blame] | 1183 | if (rv != 0) |
| 1184 | return rv; |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 1185 | |
Shelley Chen | ebd5330 | 2017-09-29 14:15:11 -0700 | [diff] [blame] | 1186 | /* values are given in milliAmps and milliVolts */ |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 1187 | *type = resp.type; |
| 1188 | m = resp.meas; |
Gaggery Tsai | 52f18df | 2020-03-25 11:34:25 -0700 | [diff] [blame] | 1189 | *voltage_max = m.voltage_max; |
| 1190 | *current_max = m.current_max; |
Shelley Chen | ebd5330 | 2017-09-29 14:15:11 -0700 | [diff] [blame] | 1191 | return 0; |
| 1192 | } |
| 1193 | |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 1194 | int google_chromeec_override_dedicated_charger_limit(uint16_t current_lim, |
| 1195 | uint16_t voltage_lim) |
Daisuke Nojiri | 93fd8fa | 2017-11-28 14:11:30 -0800 | [diff] [blame] | 1196 | { |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 1197 | struct ec_params_dedicated_charger_limit params = { |
Daisuke Nojiri | 93fd8fa | 2017-11-28 14:11:30 -0800 | [diff] [blame] | 1198 | .current_lim = current_lim, |
| 1199 | .voltage_lim = voltage_lim, |
| 1200 | }; |
| 1201 | struct chromeec_command cmd = { |
| 1202 | .cmd_code = EC_CMD_OVERRIDE_DEDICATED_CHARGER_LIMIT, |
| 1203 | .cmd_version = 0, |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 1204 | .cmd_data_in = ¶ms, |
| 1205 | .cmd_size_in = sizeof(params), |
Daisuke Nojiri | 93fd8fa | 2017-11-28 14:11:30 -0800 | [diff] [blame] | 1206 | .cmd_data_out = NULL, |
| 1207 | .cmd_size_out = 0, |
| 1208 | .cmd_dev_index = 0, |
| 1209 | }; |
| 1210 | |
| 1211 | return google_chromeec_command(&cmd); |
| 1212 | } |
| 1213 | |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 1214 | int google_chromeec_set_usb_pd_role(uint8_t port, enum usb_pd_control_role role) |
Julius Werner | ea79d2b | 2016-11-21 20:14:07 -0800 | [diff] [blame] | 1215 | { |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 1216 | struct ec_params_usb_pd_control params = { |
Julius Werner | ea79d2b | 2016-11-21 20:14:07 -0800 | [diff] [blame] | 1217 | .port = port, |
| 1218 | .role = role, |
| 1219 | .mux = USB_PD_CTRL_MUX_NO_CHANGE, |
| 1220 | .swap = USB_PD_CTRL_SWAP_NONE, |
| 1221 | }; |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 1222 | struct ec_response_usb_pd_control resp; |
Julius Werner | ea79d2b | 2016-11-21 20:14:07 -0800 | [diff] [blame] | 1223 | struct chromeec_command cmd = { |
| 1224 | .cmd_code = EC_CMD_USB_PD_CONTROL, |
| 1225 | .cmd_version = 0, |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 1226 | .cmd_data_in = ¶ms, |
| 1227 | .cmd_size_in = sizeof(params), |
| 1228 | .cmd_data_out = &resp, |
| 1229 | .cmd_size_out = sizeof(resp), |
Julius Werner | ea79d2b | 2016-11-21 20:14:07 -0800 | [diff] [blame] | 1230 | .cmd_dev_index = 0, |
| 1231 | }; |
| 1232 | |
| 1233 | return google_chromeec_command(&cmd); |
| 1234 | } |
| 1235 | |
Tim Wawrzynczak | 1966b5c80 | 2019-10-21 13:09:09 -0600 | [diff] [blame] | 1236 | int google_chromeec_hello(void) |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 1237 | { |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 1238 | struct ec_params_hello params = { |
| 1239 | .in_data = 0x10203040, |
| 1240 | }; |
| 1241 | struct ec_response_hello resp = {}; |
| 1242 | struct chromeec_command cmd = { |
| 1243 | .cmd_code = EC_CMD_HELLO, |
| 1244 | .cmd_version = 0, |
| 1245 | .cmd_data_in = ¶ms, |
| 1246 | .cmd_data_out = &resp, |
| 1247 | .cmd_size_in = sizeof(params), |
| 1248 | .cmd_size_out = sizeof(resp), |
| 1249 | .cmd_dev_index = 0, |
| 1250 | }; |
| 1251 | |
| 1252 | int rv = google_chromeec_command(&cmd); |
| 1253 | if (rv) |
| 1254 | return -1; |
Tim Wawrzynczak | 1966b5c80 | 2019-10-21 13:09:09 -0600 | [diff] [blame] | 1255 | |
| 1256 | if (resp.out_data != (params.in_data + 0x01020304)) |
| 1257 | return -1; |
| 1258 | |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 1259 | return 0; |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 1260 | } |
| 1261 | |
Jonathan Brandmeyer | bd21f2844 | 2018-07-23 16:44:51 -0600 | [diff] [blame] | 1262 | /* |
| 1263 | * Convert a reset cause ID to human-readable string, providing total coverage |
| 1264 | * of the 'cause' space. The returned string points to static storage and must |
| 1265 | * not be free()ed. |
| 1266 | */ |
| 1267 | static const char *reset_cause_to_str(uint16_t cause) |
| 1268 | { |
| 1269 | /* See also ChromiumOS EC include/chipset.h for details. */ |
| 1270 | static const char * const reset_causes[] = { |
| 1271 | "(reset unknown)", |
| 1272 | "reset: board custom", |
| 1273 | "reset: ap hang detected", |
| 1274 | "reset: console command", |
| 1275 | "reset: keyboard sysreset", |
| 1276 | "reset: keyboard warm reboot", |
| 1277 | "reset: debug warm reboot", |
| 1278 | "reset: at AP's request", |
| 1279 | "reset: during EC initialization", |
You-Cheng Syu | 85bb874 | 2019-03-12 13:02:18 +0800 | [diff] [blame] | 1280 | "reset: AP watchdog", |
Jonathan Brandmeyer | bd21f2844 | 2018-07-23 16:44:51 -0600 | [diff] [blame] | 1281 | }; |
| 1282 | |
| 1283 | static const size_t shutdown_cause_begin = 1 << 15; |
| 1284 | static const char * const shutdown_causes[] = { |
| 1285 | "shutdown: power failure", |
| 1286 | "shutdown: during EC initialization", |
| 1287 | "shutdown: board custom", |
| 1288 | "shutdown: battery voltage startup inhibit", |
| 1289 | "shutdown: power wait asserted", |
| 1290 | "shutdown: critical battery", |
| 1291 | "shutdown: by console command", |
| 1292 | "shutdown: entering G3", |
| 1293 | "shutdown: thermal", |
| 1294 | "shutdown: power button", |
| 1295 | }; |
| 1296 | |
| 1297 | if (cause < ARRAY_SIZE(reset_causes)) |
| 1298 | return reset_causes[cause]; |
| 1299 | |
| 1300 | if (cause < shutdown_cause_begin) |
| 1301 | return "(reset unknown)"; |
| 1302 | |
| 1303 | if (cause < shutdown_cause_begin + ARRAY_SIZE(shutdown_causes)) |
| 1304 | return shutdown_causes[cause - shutdown_cause_begin]; |
| 1305 | |
| 1306 | return "(shutdown unknown)"; |
| 1307 | } |
| 1308 | |
| 1309 | /* |
| 1310 | * Copy the EC's information about resets of the AP and its own uptime for |
| 1311 | * debugging purposes. |
| 1312 | */ |
| 1313 | static void google_chromeec_log_uptimeinfo(void) |
| 1314 | { |
You-Cheng Syu | 8d6ea6a | 2019-03-13 21:37:23 +0800 | [diff] [blame] | 1315 | /* See also ec_commands.h EC_RESET_FLAG_* for details. */ |
Jonathan Brandmeyer | bd21f2844 | 2018-07-23 16:44:51 -0600 | [diff] [blame] | 1316 | static const char * const reset_flag_strings[] = { |
| 1317 | "other", |
| 1318 | "reset-pin", |
| 1319 | "brownout", |
| 1320 | "power-on", |
| 1321 | "watchdog", |
| 1322 | "soft", |
| 1323 | "hibernate", |
| 1324 | "rtc-alarm", |
| 1325 | "wake-pin", |
| 1326 | "low-battery", |
| 1327 | "sysjump", |
| 1328 | "hard", |
| 1329 | "ap-off", |
| 1330 | "preserved", |
| 1331 | "usb-resume", |
| 1332 | "rdd", |
| 1333 | "rbox", |
You-Cheng Syu | 85bb874 | 2019-03-12 13:02:18 +0800 | [diff] [blame] | 1334 | "security", |
| 1335 | "ap-watchdog", |
Jonathan Brandmeyer | bd21f2844 | 2018-07-23 16:44:51 -0600 | [diff] [blame] | 1336 | }; |
| 1337 | struct ec_response_uptime_info cmd_resp; |
| 1338 | int i, flag, flag_count; |
| 1339 | |
You-Cheng Syu | 85bb874 | 2019-03-12 13:02:18 +0800 | [diff] [blame] | 1340 | if (google_chromeec_get_uptime_info(&cmd_resp)) { |
Jonathan Brandmeyer | bd21f2844 | 2018-07-23 16:44:51 -0600 | [diff] [blame] | 1341 | /* |
| 1342 | * Deliberately say nothing for EC's that don't support this |
| 1343 | * command |
| 1344 | */ |
| 1345 | return; |
| 1346 | } |
| 1347 | |
| 1348 | printk(BIOS_DEBUG, "Google Chrome EC uptime: %d.%03d seconds\n", |
| 1349 | cmd_resp.time_since_ec_boot_ms / MSECS_PER_SEC, |
| 1350 | cmd_resp.time_since_ec_boot_ms % MSECS_PER_SEC); |
| 1351 | |
| 1352 | printk(BIOS_DEBUG, "Google Chrome AP resets since EC boot: %d\n", |
| 1353 | cmd_resp.ap_resets_since_ec_boot); |
| 1354 | |
| 1355 | printk(BIOS_DEBUG, "Google Chrome most recent AP reset causes:\n"); |
| 1356 | for (i = 0; i != ARRAY_SIZE(cmd_resp.recent_ap_reset); ++i) { |
| 1357 | if (cmd_resp.recent_ap_reset[i].reset_time_ms == 0) |
| 1358 | continue; |
| 1359 | |
| 1360 | printk(BIOS_DEBUG, "\t%d.%03d: %d %s\n", |
| 1361 | cmd_resp.recent_ap_reset[i].reset_time_ms / |
| 1362 | MSECS_PER_SEC, |
| 1363 | cmd_resp.recent_ap_reset[i].reset_time_ms % |
| 1364 | MSECS_PER_SEC, |
| 1365 | cmd_resp.recent_ap_reset[i].reset_cause, |
| 1366 | reset_cause_to_str( |
| 1367 | cmd_resp.recent_ap_reset[i].reset_cause)); |
| 1368 | } |
| 1369 | |
| 1370 | printk(BIOS_DEBUG, "Google Chrome EC reset flags at last EC boot: "); |
| 1371 | flag_count = 0; |
| 1372 | for (flag = 0; flag != ARRAY_SIZE(reset_flag_strings); ++flag) { |
| 1373 | if ((cmd_resp.ec_reset_flags & (1 << flag)) != 0) { |
| 1374 | if (flag_count) |
| 1375 | printk(BIOS_DEBUG, " | "); |
Greg V | ae47a6f | 2019-10-04 02:49:20 +0300 | [diff] [blame] | 1376 | printk(BIOS_DEBUG, "%s", reset_flag_strings[flag]); |
Jonathan Brandmeyer | bd21f2844 | 2018-07-23 16:44:51 -0600 | [diff] [blame] | 1377 | flag_count++; |
| 1378 | } |
| 1379 | } |
| 1380 | printk(BIOS_DEBUG, "\n"); |
| 1381 | } |
| 1382 | |
Tim Wawrzynczak | 1966b5c80 | 2019-10-21 13:09:09 -0600 | [diff] [blame] | 1383 | /* Cache and retrieve the EC image type (ro or rw) */ |
Furquan Shaikh | a6cf8d6 | 2020-04-07 22:22:22 -0700 | [diff] [blame] | 1384 | enum ec_image google_chromeec_get_current_image(void) |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 1385 | { |
Kyösti Mälkki | fcbbb91 | 2020-04-20 10:21:39 +0300 | [diff] [blame] | 1386 | static enum ec_image ec_image_type = EC_IMAGE_UNKNOWN; |
Tim Wawrzynczak | 1966b5c80 | 2019-10-21 13:09:09 -0600 | [diff] [blame] | 1387 | |
| 1388 | if (ec_image_type != EC_IMAGE_UNKNOWN) |
| 1389 | return ec_image_type; |
| 1390 | |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 1391 | struct ec_response_get_version resp = {}; |
| 1392 | struct chromeec_command cmd = { |
| 1393 | .cmd_code = EC_CMD_GET_VERSION, |
| 1394 | .cmd_version = 0, |
| 1395 | .cmd_data_out = &resp, |
| 1396 | .cmd_size_in = 0, |
| 1397 | .cmd_size_out = sizeof(resp), |
| 1398 | .cmd_dev_index = 0, |
| 1399 | }; |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 1400 | |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 1401 | google_chromeec_command(&cmd); |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 1402 | |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 1403 | if (cmd.cmd_code) { |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 1404 | printk(BIOS_DEBUG, |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 1405 | "Google Chrome EC: version command failed!\n"); |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 1406 | } else { |
| 1407 | printk(BIOS_DEBUG, "Google Chrome EC: version:\n"); |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 1408 | printk(BIOS_DEBUG, " ro: %s\n", resp.version_string_ro); |
| 1409 | printk(BIOS_DEBUG, " rw: %s\n", resp.version_string_rw); |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 1410 | printk(BIOS_DEBUG, " running image: %d\n", |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 1411 | resp.current_image); |
| 1412 | ec_image_type = resp.current_image; |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 1413 | } |
Jonathan Brandmeyer | bd21f2844 | 2018-07-23 16:44:51 -0600 | [diff] [blame] | 1414 | |
Tim Wawrzynczak | 1966b5c80 | 2019-10-21 13:09:09 -0600 | [diff] [blame] | 1415 | /* Will still be UNKNOWN if command failed */ |
| 1416 | return ec_image_type; |
| 1417 | } |
| 1418 | |
Divya Sasidharan | 49d74de | 2019-10-22 13:41:15 -0700 | [diff] [blame] | 1419 | int google_chromeec_get_num_pd_ports(unsigned int *num_ports) |
Tim Wawrzynczak | e607829 | 2020-01-22 15:22:18 -0700 | [diff] [blame] | 1420 | { |
| 1421 | struct ec_response_charge_port_count resp = {}; |
| 1422 | struct chromeec_command cmd = { |
Divya Sasidharan | 49d74de | 2019-10-22 13:41:15 -0700 | [diff] [blame] | 1423 | .cmd_code = EC_CMD_USB_PD_PORTS, |
Tim Wawrzynczak | e607829 | 2020-01-22 15:22:18 -0700 | [diff] [blame] | 1424 | .cmd_version = 0, |
| 1425 | .cmd_data_out = &resp, |
| 1426 | .cmd_size_in = 0, |
| 1427 | .cmd_size_out = sizeof(resp), |
| 1428 | .cmd_dev_index = 0, |
| 1429 | }; |
| 1430 | int rv; |
| 1431 | |
| 1432 | rv = google_chromeec_command(&cmd); |
| 1433 | if (rv) |
| 1434 | return rv; |
| 1435 | |
| 1436 | *num_ports = resp.port_count; |
| 1437 | return 0; |
| 1438 | } |
| 1439 | |
| 1440 | int google_chromeec_get_pd_port_caps(int port, |
| 1441 | struct usb_pd_port_caps *port_caps) |
| 1442 | { |
| 1443 | struct ec_params_get_pd_port_caps params = { |
| 1444 | .port = port, |
| 1445 | }; |
| 1446 | struct ec_response_get_pd_port_caps resp = {}; |
| 1447 | struct chromeec_command cmd = { |
| 1448 | .cmd_code = EC_CMD_GET_PD_PORT_CAPS, |
| 1449 | .cmd_version = 0, |
| 1450 | .cmd_data_in = ¶ms, |
| 1451 | .cmd_size_in = sizeof(params), |
| 1452 | .cmd_data_out = &resp, |
| 1453 | .cmd_size_out = sizeof(resp), |
| 1454 | .cmd_dev_index = 0, |
| 1455 | }; |
| 1456 | int rv; |
| 1457 | |
| 1458 | rv = google_chromeec_command(&cmd); |
| 1459 | if (rv) |
| 1460 | return rv; |
| 1461 | |
| 1462 | port_caps->power_role_cap = resp.pd_power_role_cap; |
| 1463 | port_caps->try_power_role_cap = resp.pd_try_power_role_cap; |
| 1464 | port_caps->data_role_cap = resp.pd_data_role_cap; |
| 1465 | port_caps->port_location = resp.pd_port_location; |
| 1466 | |
| 1467 | return 0; |
| 1468 | } |
| 1469 | |
Tim Wawrzynczak | 1966b5c80 | 2019-10-21 13:09:09 -0600 | [diff] [blame] | 1470 | void google_chromeec_init(void) |
| 1471 | { |
Jonathan Brandmeyer | bd21f2844 | 2018-07-23 16:44:51 -0600 | [diff] [blame] | 1472 | google_chromeec_log_uptimeinfo(); |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 1473 | } |
| 1474 | |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 1475 | int google_ec_running_ro(void) |
| 1476 | { |
Tim Wawrzynczak | 1966b5c80 | 2019-10-21 13:09:09 -0600 | [diff] [blame] | 1477 | return (google_chromeec_get_current_image() == EC_IMAGE_RO); |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 1478 | } |
Stefan Reinauer | d6682e8 | 2013-02-21 15:39:35 -0800 | [diff] [blame] | 1479 | |
Derek Huang | 796ea82 | 2021-09-29 22:05:04 +0800 | [diff] [blame] | 1480 | /* Returns data role and type of device connected */ |
| 1481 | static int google_chromeec_usb_pd_get_info(int port, bool *ufp, bool *dbg_acc, |
Derek Huang | f1f9b3d | 2021-09-29 16:39:01 +0800 | [diff] [blame] | 1482 | bool *active_cable, uint8_t *dp_mode) |
Divya Sasidharan | 49d74de | 2019-10-22 13:41:15 -0700 | [diff] [blame] | 1483 | { |
| 1484 | struct ec_params_usb_pd_control pd_control = { |
| 1485 | .port = port, |
| 1486 | .role = USB_PD_CTRL_ROLE_NO_CHANGE, |
| 1487 | .mux = USB_PD_CTRL_ROLE_NO_CHANGE, |
| 1488 | .swap = USB_PD_CTRL_SWAP_NONE, |
| 1489 | }; |
| 1490 | struct ec_response_usb_pd_control_v2 resp = {}; |
| 1491 | struct chromeec_command cmd = { |
| 1492 | .cmd_code = EC_CMD_USB_PD_CONTROL, |
| 1493 | .cmd_version = 2, |
| 1494 | .cmd_data_in = &pd_control, |
| 1495 | .cmd_size_in = sizeof(pd_control), |
| 1496 | .cmd_data_out = &resp, |
| 1497 | .cmd_size_out = sizeof(resp), |
| 1498 | .cmd_dev_index = 0, |
| 1499 | }; |
| 1500 | |
| 1501 | if (google_chromeec_command(&cmd) < 0) |
| 1502 | return -1; |
| 1503 | |
| 1504 | *ufp = (resp.cc_state == PD_CC_DFP_ATTACHED); |
| 1505 | *dbg_acc = (resp.cc_state == PD_CC_DFP_DEBUG_ACC); |
Derek Huang | f1f9b3d | 2021-09-29 16:39:01 +0800 | [diff] [blame] | 1506 | *active_cable = !!(resp.control_flags & USB_PD_CTRL_ACTIVE_CABLE); |
Divya Sasidharan | 49d74de | 2019-10-22 13:41:15 -0700 | [diff] [blame] | 1507 | *dp_mode = resp.dp_mode; |
| 1508 | |
| 1509 | return 0; |
| 1510 | } |
| 1511 | |
Derek Huang | c0bd123 | 2021-08-25 17:19:39 +0800 | [diff] [blame] | 1512 | int google_chromeec_typec_control_enter_dp_mode(int port) |
| 1513 | { |
| 1514 | if (!google_chromeec_check_feature(EC_FEATURE_TYPEC_REQUIRE_AP_MODE_ENTRY)) |
| 1515 | return 0; |
| 1516 | |
| 1517 | struct ec_params_typec_control typec_control = { |
| 1518 | .port = port, |
| 1519 | .command = TYPEC_CONTROL_COMMAND_ENTER_MODE, |
| 1520 | .mode_to_enter = TYPEC_MODE_DP, |
| 1521 | }; |
| 1522 | |
| 1523 | struct chromeec_command cmd = { |
| 1524 | .cmd_code = EC_CMD_TYPEC_CONTROL, |
| 1525 | .cmd_version = 0, |
| 1526 | .cmd_data_in = &typec_control, |
| 1527 | .cmd_size_in = sizeof(typec_control), |
| 1528 | .cmd_data_out = NULL, |
| 1529 | .cmd_size_out = 0, |
| 1530 | .cmd_dev_index = 0, |
| 1531 | }; |
| 1532 | |
| 1533 | if (google_chromeec_command(&cmd) < 0) |
| 1534 | return -1; |
| 1535 | |
| 1536 | return 0; |
| 1537 | } |
| 1538 | |
Divya Sasidharan | 49d74de | 2019-10-22 13:41:15 -0700 | [diff] [blame] | 1539 | /** |
| 1540 | * Check for the current mux state in EC. Flags representing the mux state found |
| 1541 | * in ec_commands.h |
| 1542 | */ |
| 1543 | int google_chromeec_usb_get_pd_mux_info(int port, uint8_t *flags) |
| 1544 | { |
| 1545 | struct ec_params_usb_pd_mux_info req_mux = { |
| 1546 | .port = port, |
| 1547 | }; |
| 1548 | struct ec_response_usb_pd_mux_info resp_mux = {}; |
| 1549 | struct chromeec_command cmd = { |
| 1550 | .cmd_code = EC_CMD_USB_PD_MUX_INFO, |
| 1551 | .cmd_version = 0, |
| 1552 | .cmd_data_in = &req_mux, |
| 1553 | .cmd_size_in = sizeof(req_mux), |
| 1554 | .cmd_data_out = &resp_mux, |
| 1555 | .cmd_size_out = sizeof(resp_mux), |
| 1556 | .cmd_dev_index = 0, |
| 1557 | }; |
| 1558 | |
| 1559 | if (port < 0) |
| 1560 | return -1; |
| 1561 | |
| 1562 | if (google_chromeec_command(&cmd) < 0) |
| 1563 | return -1; |
| 1564 | |
| 1565 | *flags = resp_mux.flags; |
| 1566 | return 0; |
| 1567 | } |
| 1568 | |
Derek Huang | 63ffc1a | 2021-09-29 21:59:45 +0800 | [diff] [blame] | 1569 | /* |
| 1570 | * Obtain any USB-C mux data needed for the specified port |
| 1571 | * in: physical port number of the type-c port |
| 1572 | * out: struct usbc_mux_info mux_info stores USB-C mux data |
| 1573 | * Return: 0 on success, -1 on error |
| 1574 | */ |
| 1575 | int google_chromeec_get_usbc_mux_info(int port, struct usbc_mux_info *mux_info) |
| 1576 | { |
| 1577 | uint8_t mux_flags; |
| 1578 | uint8_t dp_pin_mode; |
| 1579 | bool ufp, dbg_acc, active_cable; |
| 1580 | |
| 1581 | if (google_chromeec_usb_get_pd_mux_info(port, &mux_flags) < 0) { |
| 1582 | printk(BIOS_ERR, "Port C%d: get_pd_mux_info failed\n", port); |
| 1583 | return -1; |
| 1584 | } |
| 1585 | |
| 1586 | if (google_chromeec_usb_pd_get_info(port, &ufp, &dbg_acc, |
| 1587 | &active_cable, &dp_pin_mode) < 0) { |
| 1588 | printk(BIOS_ERR, "Port C%d: pd_control failed\n", port); |
| 1589 | return -1; |
| 1590 | } |
| 1591 | |
| 1592 | mux_info->usb = !!(mux_flags & USB_PD_MUX_USB_ENABLED); |
| 1593 | mux_info->dp = !!(mux_flags & USB_PD_MUX_DP_ENABLED); |
| 1594 | mux_info->polarity = !!(mux_flags & USB_PD_MUX_POLARITY_INVERTED); |
| 1595 | mux_info->hpd_irq = !!(mux_flags & USB_PD_MUX_HPD_IRQ); |
| 1596 | mux_info->hpd_lvl = !!(mux_flags & USB_PD_MUX_HPD_LVL); |
| 1597 | mux_info->ufp = !!ufp; |
| 1598 | mux_info->dbg_acc = !!dbg_acc; |
| 1599 | mux_info->cable = !!active_cable; |
| 1600 | mux_info->dp_pin_mode = dp_pin_mode; |
| 1601 | |
| 1602 | return 0; |
| 1603 | } |
| 1604 | |
Daisuke Nojiri | 476c2c5 | 2018-01-26 17:36:44 -0800 | [diff] [blame] | 1605 | /** |
| 1606 | * Check if EC/TCPM is in an alternate mode or not. |
| 1607 | * |
| 1608 | * @param svid SVID of the alternate mode to check |
Derek Huang | c0f005a | 2021-09-29 17:38:31 +0800 | [diff] [blame] | 1609 | * @return 0: Not in the mode. -1: Error. |
| 1610 | * >=1: bitmask of the ports that are in the mode. |
Daisuke Nojiri | 476c2c5 | 2018-01-26 17:36:44 -0800 | [diff] [blame] | 1611 | */ |
Derek Huang | c0f005a | 2021-09-29 17:38:31 +0800 | [diff] [blame] | 1612 | static int google_chromeec_pd_get_amode(uint16_t svid) |
Daisuke Nojiri | 476c2c5 | 2018-01-26 17:36:44 -0800 | [diff] [blame] | 1613 | { |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 1614 | struct ec_response_usb_pd_ports resp; |
| 1615 | struct chromeec_command cmd = { |
| 1616 | .cmd_code = EC_CMD_USB_PD_PORTS, |
| 1617 | .cmd_version = 0, |
| 1618 | .cmd_data_in = NULL, |
| 1619 | .cmd_size_in = 0, |
| 1620 | .cmd_data_out = &resp, |
| 1621 | .cmd_size_out = sizeof(resp), |
| 1622 | .cmd_dev_index = 0, |
| 1623 | }; |
Daisuke Nojiri | 476c2c5 | 2018-01-26 17:36:44 -0800 | [diff] [blame] | 1624 | int i; |
Derek Huang | c0f005a | 2021-09-29 17:38:31 +0800 | [diff] [blame] | 1625 | int ret = 0; |
Daisuke Nojiri | 476c2c5 | 2018-01-26 17:36:44 -0800 | [diff] [blame] | 1626 | |
Daisuke Nojiri | 476c2c5 | 2018-01-26 17:36:44 -0800 | [diff] [blame] | 1627 | if (google_chromeec_command(&cmd) < 0) |
| 1628 | return -1; |
| 1629 | |
Tim Wawrzynczak | b5c345a | 2019-10-24 10:12:01 -0600 | [diff] [blame] | 1630 | for (i = 0; i < resp.num_ports; i++) { |
Tim Wawrzynczak | 1966b5c80 | 2019-10-21 13:09:09 -0600 | [diff] [blame] | 1631 | struct ec_params_usb_pd_get_mode_request params; |
| 1632 | struct ec_params_usb_pd_get_mode_response resp2; |
Daisuke Nojiri | ccfa18f | 2018-04-26 12:59:58 -0700 | [diff] [blame] | 1633 | int svid_idx = 0; |
Daisuke Nojiri | 476c2c5 | 2018-01-26 17:36:44 -0800 | [diff] [blame] | 1634 | |
| 1635 | do { |
Daisuke Nojiri | ccfa18f | 2018-04-26 12:59:58 -0700 | [diff] [blame] | 1636 | /* Reset cmd in each iteration in case |
| 1637 | google_chromeec_command changes it. */ |
Tim Wawrzynczak | 1966b5c80 | 2019-10-21 13:09:09 -0600 | [diff] [blame] | 1638 | params.port = i; |
| 1639 | params.svid_idx = svid_idx; |
Daisuke Nojiri | ccfa18f | 2018-04-26 12:59:58 -0700 | [diff] [blame] | 1640 | cmd.cmd_code = EC_CMD_USB_PD_GET_AMODE; |
| 1641 | cmd.cmd_version = 0; |
Tim Wawrzynczak | 1966b5c80 | 2019-10-21 13:09:09 -0600 | [diff] [blame] | 1642 | cmd.cmd_data_in = ¶ms; |
| 1643 | cmd.cmd_size_in = sizeof(params); |
| 1644 | cmd.cmd_data_out = &resp2; |
| 1645 | cmd.cmd_size_out = sizeof(resp2); |
Daisuke Nojiri | ccfa18f | 2018-04-26 12:59:58 -0700 | [diff] [blame] | 1646 | cmd.cmd_dev_index = 0; |
| 1647 | |
Daisuke Nojiri | 476c2c5 | 2018-01-26 17:36:44 -0800 | [diff] [blame] | 1648 | if (google_chromeec_command(&cmd) < 0) |
| 1649 | return -1; |
Tim Wawrzynczak | 1966b5c80 | 2019-10-21 13:09:09 -0600 | [diff] [blame] | 1650 | if (resp2.svid == svid) |
Derek Huang | c0f005a | 2021-09-29 17:38:31 +0800 | [diff] [blame] | 1651 | ret |= BIT(i); |
Daisuke Nojiri | ccfa18f | 2018-04-26 12:59:58 -0700 | [diff] [blame] | 1652 | svid_idx++; |
Tim Wawrzynczak | 1966b5c80 | 2019-10-21 13:09:09 -0600 | [diff] [blame] | 1653 | } while (resp2.svid); |
Daisuke Nojiri | 476c2c5 | 2018-01-26 17:36:44 -0800 | [diff] [blame] | 1654 | } |
| 1655 | |
Derek Huang | c0f005a | 2021-09-29 17:38:31 +0800 | [diff] [blame] | 1656 | return ret; |
Daisuke Nojiri | 476c2c5 | 2018-01-26 17:36:44 -0800 | [diff] [blame] | 1657 | } |
Daisuke Nojiri | ebb86be | 2018-01-26 17:36:44 -0800 | [diff] [blame] | 1658 | |
Daisuke Nojiri | ebb86be | 2018-01-26 17:36:44 -0800 | [diff] [blame] | 1659 | #define USB_SID_DISPLAYPORT 0xff01 |
| 1660 | |
Daisuke Nojiri | d182b63 | 2018-02-16 17:50:06 -0800 | [diff] [blame] | 1661 | /** |
| 1662 | * Wait for DisplayPort to be ready |
| 1663 | * |
Derek Huang | c0f005a | 2021-09-29 17:38:31 +0800 | [diff] [blame] | 1664 | * @param timeout_ms Wait aborts after <timeout_ms> ms. |
| 1665 | * @return -1: Error. 0: Timeout. |
| 1666 | * >=1: Bitmask of the ports that DP device is connected |
Daisuke Nojiri | d182b63 | 2018-02-16 17:50:06 -0800 | [diff] [blame] | 1667 | */ |
Derek Huang | c0f005a | 2021-09-29 17:38:31 +0800 | [diff] [blame] | 1668 | int google_chromeec_wait_for_displayport(long timeout_ms) |
Daisuke Nojiri | ebb86be | 2018-01-26 17:36:44 -0800 | [diff] [blame] | 1669 | { |
| 1670 | struct stopwatch sw; |
Derek Huang | c0f005a | 2021-09-29 17:38:31 +0800 | [diff] [blame] | 1671 | int ret = 0; |
Daisuke Nojiri | ebb86be | 2018-01-26 17:36:44 -0800 | [diff] [blame] | 1672 | |
Daisuke Nojiri | d182b63 | 2018-02-16 17:50:06 -0800 | [diff] [blame] | 1673 | printk(BIOS_INFO, "Waiting for DisplayPort\n"); |
Derek Huang | c0f005a | 2021-09-29 17:38:31 +0800 | [diff] [blame] | 1674 | stopwatch_init_msecs_expire(&sw, timeout_ms); |
| 1675 | while (1) { |
| 1676 | ret = google_chromeec_pd_get_amode(USB_SID_DISPLAYPORT); |
| 1677 | if (ret > 0) |
| 1678 | break; |
| 1679 | |
| 1680 | if (ret < 0) { |
| 1681 | printk(BIOS_ERR, "Can't get alternate mode!\n"); |
| 1682 | return ret; |
| 1683 | } |
| 1684 | |
Daisuke Nojiri | ebb86be | 2018-01-26 17:36:44 -0800 | [diff] [blame] | 1685 | if (stopwatch_expired(&sw)) { |
| 1686 | printk(BIOS_WARNING, |
Daisuke Nojiri | d182b63 | 2018-02-16 17:50:06 -0800 | [diff] [blame] | 1687 | "DisplayPort not ready after %ldms. Abort.\n", |
Derek Huang | c0f005a | 2021-09-29 17:38:31 +0800 | [diff] [blame] | 1688 | timeout_ms); |
Daisuke Nojiri | d182b63 | 2018-02-16 17:50:06 -0800 | [diff] [blame] | 1689 | return 0; |
Daisuke Nojiri | ebb86be | 2018-01-26 17:36:44 -0800 | [diff] [blame] | 1690 | } |
| 1691 | mdelay(200); |
| 1692 | } |
Daisuke Nojiri | d182b63 | 2018-02-16 17:50:06 -0800 | [diff] [blame] | 1693 | printk(BIOS_INFO, "DisplayPort ready after %lu ms\n", |
Daisuke Nojiri | ebb86be | 2018-01-26 17:36:44 -0800 | [diff] [blame] | 1694 | stopwatch_duration_msecs(&sw)); |
Daisuke Nojiri | d182b63 | 2018-02-16 17:50:06 -0800 | [diff] [blame] | 1695 | |
Derek Huang | c0f005a | 2021-09-29 17:38:31 +0800 | [diff] [blame] | 1696 | return ret; |
Daisuke Nojiri | ebb86be | 2018-01-26 17:36:44 -0800 | [diff] [blame] | 1697 | } |
Rajat Jain | 89eef55 | 2020-04-10 15:48:49 -0700 | [diff] [blame] | 1698 | |
Derek Huang | c0bd123 | 2021-08-25 17:19:39 +0800 | [diff] [blame] | 1699 | int google_chromeec_wait_for_dp_hpd(int port, long timeout_ms) |
| 1700 | { |
| 1701 | uint8_t mux_flags; |
| 1702 | struct stopwatch sw; |
| 1703 | |
| 1704 | stopwatch_init_msecs_expire(&sw, timeout_ms); |
| 1705 | do { |
| 1706 | google_chromeec_usb_get_pd_mux_info(port, &mux_flags); |
| 1707 | if (stopwatch_expired(&sw)) { |
| 1708 | printk(BIOS_WARNING, "HPD not ready after %ldms. Abort.\n", timeout_ms); |
| 1709 | return -1; |
| 1710 | } |
| 1711 | mdelay(100); |
| 1712 | } while (!(mux_flags & USB_PD_MUX_HPD_LVL) || !(mux_flags & USB_PD_MUX_DP_ENABLED)); |
| 1713 | printk(BIOS_INFO, "HPD ready after %lu ms\n", stopwatch_duration_msecs(&sw)); |
| 1714 | |
| 1715 | return 0; |
| 1716 | } |
| 1717 | |
Rajat Jain | 89eef55 | 2020-04-10 15:48:49 -0700 | [diff] [blame] | 1718 | int google_chromeec_get_keybd_config(struct ec_response_keybd_config *keybd) |
| 1719 | { |
| 1720 | struct chromeec_command cmd = { |
| 1721 | .cmd_code = EC_CMD_GET_KEYBD_CONFIG, |
| 1722 | .cmd_version = 0, |
| 1723 | .cmd_data_in = NULL, |
| 1724 | .cmd_size_in = 0, |
| 1725 | .cmd_data_out = keybd, |
| 1726 | .cmd_size_out = sizeof(*keybd), |
| 1727 | .cmd_dev_index = 0, |
| 1728 | }; |
| 1729 | |
| 1730 | if (google_chromeec_command(&cmd)) |
| 1731 | return -1; |
| 1732 | |
| 1733 | return 0; |
| 1734 | } |
Karthikeyan Ramasubramanian | c96d12e | 2020-08-04 16:50:02 -0600 | [diff] [blame] | 1735 | |
| 1736 | int google_chromeec_ap_reset(void) |
| 1737 | { |
| 1738 | struct chromeec_command cmd = { |
| 1739 | .cmd_code = EC_CMD_AP_RESET, |
| 1740 | .cmd_version = 0, |
| 1741 | .cmd_data_in = NULL, |
| 1742 | .cmd_size_in = 0, |
| 1743 | .cmd_data_out = NULL, |
| 1744 | .cmd_size_out = 0, |
| 1745 | .cmd_dev_index = 0, |
| 1746 | }; |
| 1747 | |
| 1748 | if (google_chromeec_command(&cmd)) |
| 1749 | return -1; |
| 1750 | |
| 1751 | return 0; |
| 1752 | } |
Yidi Lin | 79a812e | 2020-09-21 20:25:54 +0800 | [diff] [blame] | 1753 | |
Yidi Lin | 99e6dd9 | 2020-10-23 16:02:59 +0800 | [diff] [blame] | 1754 | int google_chromeec_regulator_enable(uint32_t index, uint8_t enable) |
| 1755 | { |
| 1756 | struct ec_params_regulator_enable params = { |
| 1757 | .index = index, |
| 1758 | .enable = enable, |
| 1759 | }; |
| 1760 | struct chromeec_command cmd = { |
| 1761 | .cmd_code = EC_CMD_REGULATOR_ENABLE, |
| 1762 | .cmd_version = 0, |
| 1763 | .cmd_data_in = ¶ms, |
| 1764 | .cmd_size_in = sizeof(params), |
| 1765 | .cmd_data_out = NULL, |
| 1766 | .cmd_size_out = 0, |
| 1767 | .cmd_dev_index = 0, |
| 1768 | }; |
| 1769 | |
| 1770 | if (google_chromeec_command(&cmd)) |
| 1771 | return -1; |
| 1772 | |
| 1773 | return 0; |
| 1774 | } |
| 1775 | |
| 1776 | int google_chromeec_regulator_is_enabled(uint32_t index, uint8_t *enabled) |
| 1777 | { |
Yidi Lin | 99e6dd9 | 2020-10-23 16:02:59 +0800 | [diff] [blame] | 1778 | struct ec_params_regulator_is_enabled params = { |
| 1779 | .index = index, |
| 1780 | }; |
| 1781 | struct ec_response_regulator_is_enabled resp = {}; |
| 1782 | struct chromeec_command cmd = { |
| 1783 | .cmd_code = EC_CMD_REGULATOR_IS_ENABLED, |
| 1784 | .cmd_version = 0, |
| 1785 | .cmd_data_in = ¶ms, |
| 1786 | .cmd_size_in = sizeof(params), |
| 1787 | .cmd_data_out = &resp, |
| 1788 | .cmd_size_out = sizeof(resp), |
| 1789 | .cmd_dev_index = 0, |
| 1790 | }; |
| 1791 | |
| 1792 | if (google_chromeec_command(&cmd)) |
| 1793 | return -1; |
| 1794 | |
| 1795 | *enabled = resp.enabled; |
| 1796 | |
| 1797 | return 0; |
| 1798 | } |
| 1799 | |
Yidi Lin | 79a812e | 2020-09-21 20:25:54 +0800 | [diff] [blame] | 1800 | int google_chromeec_regulator_set_voltage(uint32_t index, uint32_t min_mv, |
| 1801 | uint32_t max_mv) |
| 1802 | { |
| 1803 | struct ec_params_regulator_set_voltage params = { |
| 1804 | .index = index, |
| 1805 | .min_mv = min_mv, |
| 1806 | .max_mv = max_mv, |
| 1807 | }; |
| 1808 | struct chromeec_command cmd = { |
| 1809 | .cmd_code = EC_CMD_REGULATOR_SET_VOLTAGE, |
| 1810 | .cmd_version = 0, |
| 1811 | .cmd_data_in = ¶ms, |
| 1812 | .cmd_size_in = sizeof(params), |
| 1813 | .cmd_data_out = NULL, |
| 1814 | .cmd_size_out = 0, |
| 1815 | .cmd_dev_index = 0, |
| 1816 | }; |
| 1817 | |
| 1818 | if (google_chromeec_command(&cmd)) |
| 1819 | return -1; |
| 1820 | |
| 1821 | return 0; |
| 1822 | } |
| 1823 | |
| 1824 | int google_chromeec_regulator_get_voltage(uint32_t index, uint32_t *voltage_mv) |
| 1825 | { |
| 1826 | struct ec_params_regulator_get_voltage params = { |
| 1827 | .index = index, |
| 1828 | }; |
| 1829 | struct ec_response_regulator_get_voltage resp = {}; |
| 1830 | struct chromeec_command cmd = { |
| 1831 | .cmd_code = EC_CMD_REGULATOR_GET_VOLTAGE, |
| 1832 | .cmd_version = 0, |
| 1833 | .cmd_data_in = ¶ms, |
| 1834 | .cmd_size_in = sizeof(params), |
| 1835 | .cmd_data_out = &resp, |
| 1836 | .cmd_size_out = sizeof(resp), |
| 1837 | .cmd_dev_index = 0, |
| 1838 | }; |
| 1839 | |
| 1840 | if (google_chromeec_command(&cmd)) |
| 1841 | return -1; |
| 1842 | |
| 1843 | *voltage_mv = resp.voltage_mv; |
| 1844 | return 0; |
| 1845 | } |