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author | Scott Chao <scott_chao@wistron.corp-partner.google.com> | 2021-06-02 13:16:11 +0800 |
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committer | Commit Bot <commit-bot@chromium.org> | 2021-06-07 17:23:28 +0000 |
commit | 996872aef6a65f03dcebb9f552b1e2485cedaad8 (patch) | |
tree | df538eebd762de2c38a1d8d34f5e67f2911d4b84 /board/primus/pwm.c | |
parent | d4181d99ad12f663f3c6e0a9ed42b2c8347c5667 (diff) | |
download | chrome-ec-996872aef6a65f03dcebb9f552b1e2485cedaad8.tar.gz |
primus: Initial EC image
Create the initial EC image for the primus variant by copying
the brya reference board EC files into a new directory named for
the variant.
(Auto-Generated by create_initial_ec_image.sh version 1.5.0).
BUG=b:188272162
BRANCH=None
TEST=make BOARD=primus
Signed-off-by: Scott Chao <scott_chao@wistron.corp-partner.google.com>
Change-Id: I9f0318d03fc67c230e11bb25b45ff78b0a6db0c1
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2931746
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Diffstat (limited to 'board/primus/pwm.c')
-rw-r--r-- | board/primus/pwm.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/board/primus/pwm.c b/board/primus/pwm.c new file mode 100644 index 0000000000..a6b65b038c --- /dev/null +++ b/board/primus/pwm.c @@ -0,0 +1,70 @@ +/* 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 "common.h" +#include "hooks.h" + +#include "pwm.h" +#include "pwm_chip.h" + +const struct pwm_t pwm_channels[] = { + [PWM_CH_LED2] = { + .channel = 0, + .flags = PWM_CONFIG_ACTIVE_LOW | PWM_CONFIG_DSLEEP, + .freq = 4800, + }, + [PWM_CH_LED3] = { + .channel = 1, + .flags = PWM_CONFIG_ACTIVE_LOW | PWM_CONFIG_DSLEEP, + .freq = 4800, + }, + [PWM_CH_LED1] = { + .channel = 2, + .flags = PWM_CONFIG_ACTIVE_LOW | PWM_CONFIG_DSLEEP, + .freq = 4800, + }, + [PWM_CH_KBLIGHT] = { + .channel = 3, + .flags = 0, + /* + * Set PWM frequency to multiple of 50 Hz and 60 Hz to prevent + * flicker. Higher frequencies consume similar average power to + * lower PWM frequencies, but higher frequencies record a much + * lower maximum power. + */ + .freq = 2400, + }, + [PWM_CH_FAN] = { + .channel = 5, + .flags = PWM_CONFIG_OPEN_DRAIN, + .freq = 25000 + }, + [PWM_CH_LED4] = { + .channel = 7, + .flags = PWM_CONFIG_ACTIVE_LOW | PWM_CONFIG_DSLEEP, + .freq = 4800, + }, +}; +BUILD_ASSERT(ARRAY_SIZE(pwm_channels) == PWM_CH_COUNT); + +static void board_pwm_init(void) +{ + /* + * Turn on all the LED at 50%. + * Turn on the fan at 100%. + */ + pwm_enable(PWM_CH_LED1, 1); + pwm_set_duty(PWM_CH_LED1, 50); + pwm_enable(PWM_CH_LED2, 1); + pwm_set_duty(PWM_CH_LED2, 50); + pwm_enable(PWM_CH_LED3, 1); + pwm_set_duty(PWM_CH_LED3, 50); + pwm_enable(PWM_CH_LED4, 1); + pwm_set_duty(PWM_CH_LED4, 50); + + pwm_enable(PWM_CH_KBLIGHT, 1); + pwm_set_duty(PWM_CH_KBLIGHT, 50); +} +DECLARE_HOOK(HOOK_INIT, board_pwm_init, HOOK_PRIO_DEFAULT); |