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ec/google/chromeec: Add CFR options for keyboard backlight and fan control

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Create a new header with CFR objects for keyboard backlight and
automatic fan control, which mainboards can include in their
setup menus in order to expose the options. The visibility of the
options are controlled by callbacks which test for device presence.

Change-Id: I2386b527f65b2e3b4ca43b9b65b69040abee00ad
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/89831
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Maximilian Brune <maximilian.brune@9elements.com>
This commit is contained in:
Matt DeVillier 2025-10-19 17:33:46 -05:00
commit cae53bea52
1 changed files with 58 additions and 0 deletions
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58
src/ec/google/chromeec/cfr.h Normal file
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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* CFR enums and structs which are used to control EC settings.
*/
#ifndef _CHROMEEC_CFR_H_
#define _CHROMEEC_CFR_H_
#include <drivers/option/cfr_frontend.h>
#include "ec.h"
static void update_fan_control(const struct sm_object *obj, struct sm_object *new)
{
if (!CONFIG(EC_GOOGLE_CHROMEEC_AUTO_FAN_CTRL) && !google_chromeec_has_fan()) {
new->sm_bool.flags = CFR_OPTFLAG_SUPPRESS;
new->sm_bool.default_value = 0;
}
}
static const struct sm_object auto_fan_control = SM_DECLARE_ENUM({
.opt_name = "auto_fan_control",
.ui_name = "Automatic Fan Control",
.ui_helptext = "Enable or disable automatic fan control.",
.default_value = CONFIG(EC_GOOGLE_CHROMEEC_AUTO_FAN_CTRL),
.values = (struct sm_enum_value[]) {
{ "Enabled", 1 },
{ "Disabled", 0 },
SM_ENUM_VALUE_END,
},
}, WITH_CALLBACK(update_fan_control));
static const struct sm_enum_value ec_backlight_values[] = {
{ "0%", 0 },
{ "25%", 25 },
{ "50%", 50 },
{ "100%", 100 },
SM_ENUM_VALUE_END,
};
static void update_kb_backlight(const struct sm_object *obj, struct sm_object *new)
{
if (!google_chromeec_has_kbbacklight()) {
new->sm_bool.flags = CFR_OPTFLAG_SUPPRESS;
new->sm_bool.default_value = -1;
}
}
static const struct sm_object ec_kb_backlight = SM_DECLARE_ENUM({
.opt_name = "ec_kb_backlight",
.ui_name = "Keyboard Backlight Level At Boot",
.ui_helptext = "Specify the level the keyboard backlight should be at boot."
" Set to 0% to disable the backlight.",
.default_value = 50,
.values = ec_backlight_values,
}, WITH_CALLBACK(update_kb_backlight));
#endif /* _CHROMEEC_CFR_H_ */