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author | Devin Lu <Devin.Lu@quantatw.com> | 2021-08-31 08:57:57 +0800 |
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committer | Commit Bot <commit-bot@chromium.org> | 2021-09-16 05:15:33 +0000 |
commit | 2ac419af01133b93023cb2775fab289765b1b248 (patch) | |
tree | 6a0d87bc7a8f8b7ad2e4ee8039c31856a10b15ee /board/redrix/thermal.c | |
parent | f464d2e99a9cb51cd422d65f43c9a77b57744003 (diff) | |
download | chrome-ec-2ac419af01133b93023cb2775fab289765b1b248.tar.gz |
redrix: Update fan table version 1
This patch adds a custom fan table which is controlled by EC.
BUG=b:195673113
BRANCH=none
TEST=Thermal team verified thermal policy is expected.
Signed-off-by: Devin Lu <Devin.Lu@quantatw.com>
Change-Id: I0ebf7809437d2528ec6fce5074a320580e444fd0
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3153118
Reviewed-by: Boris Mittelberg <bmbm@google.com>
Commit-Queue: Boris Mittelberg <bmbm@google.com>
Diffstat (limited to 'board/redrix/thermal.c')
-rw-r--r-- | board/redrix/thermal.c | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/board/redrix/thermal.c b/board/redrix/thermal.c new file mode 100644 index 0000000000..39d9a49c3a --- /dev/null +++ b/board/redrix/thermal.c @@ -0,0 +1,215 @@ +/* Copyright 2021 The Chromium OS Authors. All rights reserved. + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +#include "chipset.h" +#include "common.h" +#include "console.h" +#include "fan.h" +#include "hooks.h" +#include "host_command.h" +#include "tablet_mode.h" +#include "temp_sensor.h" +#include "thermal.h" +#include "util.h" + +/* Console output macros */ +#define CPUTS(outstr) cputs(CC_THERMAL, outstr) +#define CPRINTS(format, args...) cprints(CC_THERMAL, format, ## args) + +struct fan_step { + /* + * Sensor 1~4 trigger point, set -1 if we're not using this + * sensor to determine fan speed. + */ + int8_t on[TEMP_SENSOR_COUNT]; + + /* + * Sensor 1~4 trigger point, set -1 if we're not using this + * sensor to determine fan speed. + */ + int8_t off[TEMP_SENSOR_COUNT]; + + /* Fan 1~2 rpm */ + uint16_t rpm[FAN_CH_COUNT]; +}; + +static const struct fan_step *fan_step_table; + +static const struct fan_step fan_table_clamshell[] = { + { + /* level 0 */ + .on = {44, 46, 0, -1}, + .off = {99, 99, 99, -1}, + .rpm = {0, 0}, + }, + { + /* level 1 */ + .on = {45, 47, 0, -1}, + .off = {44, 46, 99, -1}, + .rpm = {3400, 3900}, + }, + { + /* level 2 */ + .on = {46, 48, 0, -1}, + .off = {45, 47, 99, -1}, + .rpm = {3700, 4200}, + }, + { + /* level 3 */ + .on = {47, 49, 0, -1}, + .off = {46, 48, 99, -1}, + .rpm = {4100, 4500}, + }, + { + /* level 4 */ + .on = {48, 50, 50, -1}, + .off = {47, 49, 48, -1}, + .rpm = {4200, 4600}, + }, + { + /* level 5 */ + .on = {49, 51, 52, -1}, + .off = {48, 50, 50, -1}, + .rpm = {4600, 4900}, + }, + { + /* level 6 */ + .on = {100, 100, 100, -1}, + .off = {49, 51, 52, -1}, + .rpm = {4900, 5200}, + }, +}; + +static const struct fan_step fan_table_tablet[] = { + { + /* level 0 */ + .on = {44, 46, 0, -1}, + .off = {99, 99, 99, -1}, + .rpm = {0, 0}, + }, + { + /* level 1 */ + .on = {45, 47, 0, -1}, + .off = {44, 46, 99, -1}, + .rpm = {3400, 3900}, + }, + { + /* level 2 */ + .on = {46, 48, 0, -1}, + .off = {45, 47, 99, -1}, + .rpm = {3700, 4200}, + }, + { + /* level 3 */ + .on = {47, 49, 0, -1}, + .off = {46, 48, 99, -1}, + .rpm = {4100, 4500}, + }, + { + /* level 4 */ + .on = {48, 50, 50, -1}, + .off = {47, 49, 48, -1}, + .rpm = {4200, 4600}, + }, + { + /* level 5 */ + .on = {49, 51, 52, -1}, + .off = {48, 50, 50, -1}, + .rpm = {4600, 4900}, + }, + { + /* level 6 */ + .on = {100, 100, 100, -1}, + .off = {49, 51, 52, -1}, + .rpm = {4900, 5200}, + }, +}; + +#define NUM_FAN_LEVELS ARRAY_SIZE(fan_table_clamshell) + +BUILD_ASSERT(ARRAY_SIZE(fan_table_clamshell) == + ARRAY_SIZE(fan_table_tablet)); + +int fan_table_to_rpm(int fan, int *temp) +{ + static int current_level; + static int prev_tmp[TEMP_SENSOR_COUNT]; + int new_rpm = 0; + int i; + + if (tablet_get_mode()) + fan_step_table = fan_table_tablet; + else + fan_step_table = fan_table_clamshell; + + /* + * Compare the current and previous temperature, we have + * the three paths : + * 1. decreasing path. (check the release point) + * 2. increasing path. (check the trigger point) + * 3. invariant path. (return the current RPM) + */ + if (temp[TEMP_SENSOR_1_DDR] < prev_tmp[TEMP_SENSOR_1_DDR] || + temp[TEMP_SENSOR_2_SOC] < prev_tmp[TEMP_SENSOR_2_SOC] || + temp[TEMP_SENSOR_3_CHARGER] < prev_tmp[TEMP_SENSOR_3_CHARGER]) { + for (i = current_level; i > 0; i--) { + if (temp[TEMP_SENSOR_1_DDR] < + fan_step_table[i].off[TEMP_SENSOR_1_DDR] && + temp[TEMP_SENSOR_3_CHARGER] < + fan_step_table[i].off[TEMP_SENSOR_3_CHARGER] && + temp[TEMP_SENSOR_2_SOC] < + fan_step_table[i].off[TEMP_SENSOR_2_SOC]) + current_level = i - 1; + else + break; + } + } else if (temp[TEMP_SENSOR_1_DDR] > prev_tmp[TEMP_SENSOR_1_DDR] || + temp[TEMP_SENSOR_2_SOC] > prev_tmp[TEMP_SENSOR_2_SOC] || + temp[TEMP_SENSOR_3_CHARGER] > + prev_tmp[TEMP_SENSOR_3_CHARGER]) { + for (i = current_level; i < NUM_FAN_LEVELS; i++) { + if ((temp[TEMP_SENSOR_1_DDR] > + fan_step_table[i].on[TEMP_SENSOR_1_DDR] && + temp[TEMP_SENSOR_3_CHARGER] > + fan_step_table[i].on[TEMP_SENSOR_3_CHARGER]) || + temp[TEMP_SENSOR_2_SOC] > + fan_step_table[i].on[TEMP_SENSOR_2_SOC]) + current_level = i + 1; + else + break; + } + } + + if (current_level < 0) + current_level = 0; + + for (i = 0; i < TEMP_SENSOR_COUNT; ++i) + prev_tmp[i] = temp[i]; + + ASSERT(current_level < NUM_FAN_LEVELS); + + switch (fan) { + case FAN_CH_0: + new_rpm = fan_step_table[current_level].rpm[FAN_CH_0]; + break; + case FAN_CH_1: + new_rpm = fan_step_table[current_level].rpm[FAN_CH_1]; + break; + default: + break; + } + + return new_rpm; +} + +void board_override_fan_control(int fan, int *tmp) +{ + if (chipset_in_state(CHIPSET_STATE_ON | + CHIPSET_STATE_ANY_SUSPEND)) { + fan_set_rpm_mode(FAN_CH(fan), 1); + fan_set_rpm_target(FAN_CH(fan), + fan_table_to_rpm(fan, tmp)); + } +} |