mirror of
https://github.com/Telecominfraproject/OpenCellular.git
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bb15561db5
Since pretty much always, we've declared console commands to take a "longhelp" argument with detailed explanations of what the command does. But since almost as long, we've never actually used that argument for anything - we just silently throw it away in the macro. There's only one command (usbchargemode) that even thinks it defines that argument. We're never going to use this, let's just get rid of it. BUG=none BRANCH=none CQ-DEPEND=CL:*279060 CQ-DEPEND=CL:*279158 CQ-DEPEND=CL:*279037 TEST=make buildall; tested on Cr50 hardware Everything builds. Since we never used this arg anyway, there had better not be any difference in the result. Change-Id: Id3f71a53d02e3dc625cfcc12aa71ecb50e35eb9f Signed-off-by: Bill Richardson <wfrichar@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/374163 Reviewed-by: Myles Watson <mylesgw@chromium.org> Reviewed-by: Randall Spangler <rspangler@chromium.org>
126 lines
3.4 KiB
C
126 lines
3.4 KiB
C
/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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/* PWM control module for Chromebook keyboard backlight. */
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#include "common.h"
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#include "console.h"
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#include "gpio.h"
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#include "hooks.h"
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#include "host_command.h"
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#include "lid_switch.h"
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#include "pwm.h"
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#include "system.h"
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#include "util.h"
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#define PWMKBD_SYSJUMP_TAG 0x504b /* "PK" */
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#define PWM_HOOK_VERSION 1
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/* Saved PWM state across sysjumps */
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struct pwm_kbd_state {
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uint8_t kblight_en;
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uint8_t kblight_percent;
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};
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/*****************************************************************************/
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/* Console commands */
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static int command_kblight(int argc, char **argv)
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{
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if (argc >= 2) {
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char *e;
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int i = strtoi(argv[1], &e, 0);
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if (*e)
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return EC_ERROR_PARAM1;
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pwm_set_duty(PWM_CH_KBLIGHT, i);
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}
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ccprintf("Keyboard backlight: %d%%\n", pwm_get_duty(PWM_CH_KBLIGHT));
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return EC_SUCCESS;
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}
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DECLARE_CONSOLE_COMMAND(kblight, command_kblight,
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"percent",
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"Set keyboard backlight");
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/*****************************************************************************/
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/* Host commands */
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int pwm_command_get_keyboard_backlight(struct host_cmd_handler_args *args)
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{
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struct ec_response_pwm_get_keyboard_backlight *r = args->response;
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r->percent = pwm_get_duty(PWM_CH_KBLIGHT);
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r->enabled = pwm_get_enabled(PWM_CH_KBLIGHT);
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args->response_size = sizeof(*r);
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return EC_RES_SUCCESS;
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}
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DECLARE_HOST_COMMAND(EC_CMD_PWM_GET_KEYBOARD_BACKLIGHT,
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pwm_command_get_keyboard_backlight,
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EC_VER_MASK(0));
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int pwm_command_set_keyboard_backlight(struct host_cmd_handler_args *args)
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{
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const struct ec_params_pwm_set_keyboard_backlight *p = args->params;
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pwm_set_duty(PWM_CH_KBLIGHT, p->percent);
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return EC_RES_SUCCESS;
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}
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DECLARE_HOST_COMMAND(EC_CMD_PWM_SET_KEYBOARD_BACKLIGHT,
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pwm_command_set_keyboard_backlight,
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EC_VER_MASK(0));
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/*****************************************************************************/
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/* Hooks */
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static void pwm_kblight_init(void)
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{
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const struct pwm_kbd_state *prev;
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int version, size;
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prev = (const struct pwm_kbd_state *)
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system_get_jump_tag(PWMKBD_SYSJUMP_TAG, &version, &size);
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if (prev && version == PWM_HOOK_VERSION && size == sizeof(*prev)) {
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/* Restore previous state. */
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pwm_enable(PWM_CH_KBLIGHT, prev->kblight_en);
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pwm_set_duty(PWM_CH_KBLIGHT, prev->kblight_percent);
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} else {
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/* Enable keyboard backlight control, turned down */
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pwm_set_duty(PWM_CH_KBLIGHT, 0);
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pwm_enable(PWM_CH_KBLIGHT, 1);
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}
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}
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DECLARE_HOOK(HOOK_INIT, pwm_kblight_init, HOOK_PRIO_DEFAULT);
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static void pwm_kblight_preserve_state(void)
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{
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struct pwm_kbd_state state;
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state.kblight_en = pwm_get_enabled(PWM_CH_KBLIGHT);
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state.kblight_percent = pwm_get_duty(PWM_CH_KBLIGHT);
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system_add_jump_tag(PWMKBD_SYSJUMP_TAG, PWM_HOOK_VERSION,
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sizeof(state), &state);
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}
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DECLARE_HOOK(HOOK_SYSJUMP, pwm_kblight_preserve_state, HOOK_PRIO_DEFAULT);
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static void pwm_kblight_suspend(void)
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{
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pwm_set_duty(PWM_CH_KBLIGHT, 0);
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}
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DECLARE_HOOK(HOOK_CHIPSET_SUSPEND, pwm_kblight_suspend, HOOK_PRIO_DEFAULT);
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static void pwm_kblight_shutdown(void)
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{
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pwm_set_duty(PWM_CH_KBLIGHT, 0);
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}
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DECLARE_HOOK(HOOK_CHIPSET_SHUTDOWN, pwm_kblight_shutdown, HOOK_PRIO_DEFAULT);
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static void pwm_kblight_lid_change(void)
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{
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pwm_enable(PWM_CH_KBLIGHT, lid_is_open());
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}
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DECLARE_HOOK(HOOK_LID_CHANGE, pwm_kblight_lid_change, HOOK_PRIO_DEFAULT);
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