kano: Initial EC image

Create the initial EC image for the kano variant by copying the brya
reference board EC files into a new directory named for the variant.

(Auto-Generated by create_initial_ec_image.sh version 1.5.0).

BUG=b:193052432
BRANCH=None
TEST=make BOARD=kano

Signed-off-by: David Wu <david_wu@quanta.corp-partner.google.com>
Change-Id: Icc2418fbc9ac568fd2aae640c3d379867be6254a
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3012671
Reviewed-by: Boris Mittelberg <bmbm@google.com>

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);