diff options
Diffstat (limited to 'zephyr/program/corsola/src/board_chipset.c')
-rw-r--r-- | zephyr/program/corsola/src/board_chipset.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/zephyr/program/corsola/src/board_chipset.c b/zephyr/program/corsola/src/board_chipset.c new file mode 100644 index 0000000000..e534bfafcb --- /dev/null +++ b/zephyr/program/corsola/src/board_chipset.c @@ -0,0 +1,51 @@ +/* Copyright 2021 The ChromiumOS Authors + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +/* Corsola baseboard-chipset specific configuration */ + +#include "gpio.h" + +#include <zephyr/drivers/gpio.h> +#include <zephyr/init.h> + +#include <ap_power/ap_power.h> + +static void board_backlight_handler(struct ap_power_ev_callback *cb, + struct ap_power_ev_data data) +{ + int value; + + switch (data.event) { + default: + return; + + case AP_POWER_RESUME: + /* Called on AP S3 -> S0 transition */ + value = 1; + break; + + case AP_POWER_SUSPEND: + /* Called on AP S0 -> S3 transition */ + value = 0; + break; + } + gpio_pin_set_dt(GPIO_DT_FROM_NODELABEL(gpio_ec_bl_en_od), value); +} + +static int install_backlight_handler(const struct device *unused) +{ + static struct ap_power_ev_callback cb; + + /* + * Add a callback for suspend/resume to + * control the keyboard backlight. + */ + ap_power_ev_init_callback(&cb, board_backlight_handler, + AP_POWER_RESUME | AP_POWER_SUSPEND); + ap_power_ev_add_callback(&cb); + return 0; +} + +SYS_INIT(install_backlight_handler, APPLICATION, 1); |