diff options
Diffstat (limited to 'board/kano/board.c')
-rw-r--r-- | board/kano/board.c | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/board/kano/board.c b/board/kano/board.c new file mode 100644 index 0000000000..c5109945b1 --- /dev/null +++ b/board/kano/board.c @@ -0,0 +1,165 @@ +/* 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 "battery.h" +#include "button.h" +#include "charge_ramp.h" +#include "charger.h" +#include "common.h" +#include "compile_time_macros.h" +#include "console.h" +#include "gpio.h" +#include "gpio_signal.h" +#include "hooks.h" +#include "driver/accel_lis2dw12.h" +#include "driver/accelgyro_lsm6dso.h" +#include "driver/als_tcs3400.h" +#include "fw_config.h" +#include "hooks.h" +#include "lid_switch.h" +#include "power_button.h" +#include "power.h" +#include "registers.h" +#include "switch.h" +#include "tablet_mode.h" +#include "throttle_ap.h" +#include "usbc_config.h" + +#include "gpio_list.h" /* Must come after other header files. */ + +/* Console output macros */ +#define CPRINTF(format, args...) cprintf(CC_CHARGER, format, ## args) +#define CPRINTS(format, args...) cprints(CC_CHARGER, format, ## args) + +/******************************************************************************/ +/* USB-A charging control */ + +const int usb_port_enable[USB_PORT_COUNT] = { + GPIO_EN_PP5000_USBA_R, +}; +BUILD_ASSERT(ARRAY_SIZE(usb_port_enable) == USB_PORT_COUNT); + +/******************************************************************************/ + +__override void board_cbi_init(void) +{ + config_usb_db_type(); +} + +/* Called on AP S3 -> S0 transition */ +static void board_chipset_resume(void) +{ + /* Allow keyboard backlight to be enabled */ + + if (get_board_id() == 1) + gpio_set_level(GPIO_ID_1_EC_KB_BL_EN, 1); + else + gpio_set_level(GPIO_EC_KB_BL_EN_L, 0); +} +DECLARE_HOOK(HOOK_CHIPSET_RESUME, board_chipset_resume, HOOK_PRIO_DEFAULT); + +/* Called on AP S0 -> S3 transition */ +static void board_chipset_suspend(void) +{ + /* Turn off the keyboard backlight if it's on. */ + + if (get_board_id() == 1) + gpio_set_level(GPIO_ID_1_EC_KB_BL_EN, 0); + else + gpio_set_level(GPIO_EC_KB_BL_EN_L, 1); +} +DECLARE_HOOK(HOOK_CHIPSET_SUSPEND, board_chipset_suspend, HOOK_PRIO_DEFAULT); + +#ifdef CONFIG_CHARGE_RAMP_SW + +/* + * TODO(b/181508008): tune this threshold + */ + +#define BC12_MIN_VOLTAGE 4400 + +/** + * Return true if VBUS is too low + */ +int board_is_vbus_too_low(int port, enum chg_ramp_vbus_state ramp_state) +{ + int voltage; + + if (charger_get_vbus_voltage(port, &voltage)) + voltage = 0; + + if (voltage == 0) { + CPRINTS("%s: must be disconnected", __func__); + return 1; + } + + if (voltage < BC12_MIN_VOLTAGE) { + CPRINTS("%s: port %d: vbus %d lower than %d", __func__, + port, voltage, BC12_MIN_VOLTAGE); + return 1; + } + + return 0; +} + +#endif /* CONFIG_CHARGE_RAMP_SW */ + +enum battery_present battery_hw_present(void) +{ + enum gpio_signal batt_pres; + + if (get_board_id() == 1) + batt_pres = GPIO_ID_1_EC_BATT_PRES_ODL; + else + batt_pres = GPIO_EC_BATT_PRES_ODL; + + /* The GPIO is low when the battery is physically present */ + return gpio_get_level(batt_pres) ? BP_NO : BP_YES; +} + +/* + * Explicitly apply the board ID 1 *gpio.inc settings to pins that + * were reassigned on current boards. + */ + +static void set_board_id_1_gpios(void) +{ + if (get_board_id() != 1) + return; + + gpio_set_flags(GPIO_ID_1_EC_KB_BL_EN, GPIO_OUT_LOW); +} +DECLARE_HOOK(HOOK_INIT, set_board_id_1_gpios, HOOK_PRIO_FIRST); + +/* + * Reclaim GPIO pins on board ID 1 that are used as ADC inputs on + * current boards. ALT function group MODULE_ADC pins are set in + * HOOK_PRIO_INIT_ADC and can be reclaimed right after the hook runs. + */ + +static void board_id_1_reclaim_adc(void) +{ + if (get_board_id() != 1) + return; + + /* + * GPIO_ID_1_USB_C0_C2_TCPC_RST_ODL is on GPIO34 + * + * The TCPC has already been reset by board_tcpc_init() executed + * from HOOK_PRIO_INIT_CHIPSET. Later, the pin gets set to ADC6 + * in HOOK_PRIO_INIT_ADC, so we simply need to set the pin back + * to GPIO34. + */ + gpio_set_flags(GPIO_ID_1_USB_C0_C2_TCPC_RST_ODL, GPIO_ODR_HIGH); + gpio_set_alternate_function(GPIO_PORT_3, BIT(4), GPIO_ALT_FUNC_NONE); + + /* + * The pin gets set to ADC7 in HOOK_PRIO_INIT_ADC, so we simply + * need to set it back to GPIOE1. + */ + gpio_set_flags(GPIO_ID_1_EC_BATT_PRES_ODL, GPIO_INPUT); + gpio_set_alternate_function(GPIO_PORT_E, BIT(1), GPIO_ALT_FUNC_NONE); +} +DECLARE_HOOK(HOOK_INIT, board_id_1_reclaim_adc, HOOK_PRIO_INIT_ADC + 1); |