diff options
Diffstat (limited to 'common/backlight_lid.c')
-rw-r--r-- | common/backlight_lid.c | 85 |
1 files changed, 0 insertions, 85 deletions
diff --git a/common/backlight_lid.c b/common/backlight_lid.c deleted file mode 100644 index 3b857df592..0000000000 --- a/common/backlight_lid.c +++ /dev/null @@ -1,85 +0,0 @@ -/* Copyright 2013 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. - */ - -/* Backlight control based on lid and optional request signal from AP */ - -#include "common.h" -#include "gpio.h" -#include "hooks.h" -#include "host_command.h" -#include "lid_switch.h" - - -/** - * Activate/Deactivate the backlight GPIO pin considering active high or low. - */ -void enable_backlight(int enabled) -{ -#ifdef CONFIG_BACKLIGHT_LID_ACTIVE_LOW - gpio_set_level(GPIO_ENABLE_BACKLIGHT_L, !enabled); -#else - gpio_set_level(GPIO_ENABLE_BACKLIGHT, enabled); -#endif -} - -/** - * Update backlight state. - */ -static void update_backlight(void) -{ -#ifdef CONFIG_BACKLIGHT_REQ_GPIO - /* Enable the backlight if lid is open AND requested by AP */ - enable_backlight(lid_is_open() && - gpio_get_level(CONFIG_BACKLIGHT_REQ_GPIO)); -#else - /* - * Enable backlight if lid is open; this is AND'd with the request from - * the AP in hardware. - */ - enable_backlight(lid_is_open()); -#endif -} -DECLARE_HOOK(HOOK_LID_CHANGE, update_backlight, HOOK_PRIO_DEFAULT); - -/** - * Initialize backlight module. - */ -static void backlight_init(void) -{ - update_backlight(); - -#ifdef CONFIG_BACKLIGHT_REQ_GPIO - gpio_enable_interrupt(CONFIG_BACKLIGHT_REQ_GPIO); -#endif -} -DECLARE_HOOK(HOOK_INIT, backlight_init, HOOK_PRIO_DEFAULT); - -#ifdef CONFIG_BACKLIGHT_REQ_GPIO -void backlight_interrupt(enum gpio_signal signal) -{ - update_backlight(); -} -#endif - -/** - * Host command to toggle backlight. - * - * The requested state will persist until the next lid-switch or request-gpio - * transition. - */ -static enum ec_status -switch_command_enable_backlight(struct host_cmd_handler_args *args) -{ - const struct ec_params_switch_enable_backlight *p = args->params; - - enable_backlight(p->enabled); - - return EC_RES_SUCCESS; -} -DECLARE_HOST_COMMAND(EC_CMD_SWITCH_ENABLE_BKLIGHT, - switch_command_enable_backlight, - EC_VER_MASK(0)); - - |