1 files changed, 121 insertions, 0 deletions
diff --git a/zephyr/projects/nissa/craask/src/form_factor.c b/zephyr/projects/nissa/craask/src/form_factor.c
new file mode 100644
index 0000000000..59869eaa2f
--- /dev/null
+++ b/zephyr/projects/nissa/craask/src/form_factor.c
@@ -0,0 +1,121 @@
+/* Copyright 2022 The ChromiumOS Authors
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include <zephyr/devicetree.h>
+#include <zephyr/logging/log.h>
+
+#include "accelgyro.h"
+#include "button.h"
+#include "cros_board_info.h"
+#include "cros_cbi.h"
+#include "driver/accelgyro_bmi323.h"
+#include "driver/accelgyro_lsm6dso.h"
+#include "gpio/gpio_int.h"
+#include "hooks.h"
+#include "motionsense_sensors.h"
+#include "motion_sense.h"
+#include "tablet_mode.h"
+
+#include "nissa_common.h"
+
+LOG_MODULE_DECLARE(nissa, CONFIG_NISSA_LOG_LEVEL);
+
+/*
+ * Mainboard orientation support.
+ */
+
+#define LIS_ALT_MAT SENSOR_ROT_STD_REF_NAME(DT_NODELABEL(lid_rot_bma422))
+#define BMA_ALT_MAT SENSOR_ROT_STD_REF_NAME(DT_NODELABEL(lid_rot_ref))
+#define ALT_MAT SENSOR_ROT_STD_REF_NAME(DT_NODELABEL(base_rot_ver1))
+#define LID_SENSOR SENSOR_ID(DT_NODELABEL(lid_accel))
+#define BASE_SENSOR SENSOR_ID(DT_NODELABEL(base_accel))
+#define BASE_GYRO SENSOR_ID(DT_NODELABEL(base_gyro))
+#define ALT_LID_S SENSOR_ID(DT_NODELABEL(alt_lid_accel))
+
+static bool use_alt_sensor;
+
+void motion_interrupt(enum gpio_signal signal)
+{
+	if (use_alt_sensor)
+		bmi3xx_interrupt(signal);
+	else
+		lsm6dso_interrupt(signal);
+}
+
+static void form_factor_init(void)
+{
+	int ret;
+	uint32_t val;
+	enum nissa_sub_board_type sb = nissa_get_sb_type();
+
+	ret = cbi_get_board_version(&val);
+	if (ret != EC_SUCCESS) {
+		LOG_ERR("Error retrieving CBI BOARD_VER.");
+		return;
+	}
+	/*
+	 * The volume up/down button are exchanged on ver3 USB
+	 * sub board.
+	 *
+	 * LTE:
+	 *   volup -> gpioa2, voldn -> gpio93
+	 * USB:
+	 *   volup -> gpio93, voldn -> gpioa2
+	 */
+	if (val == 3 && sb == NISSA_SB_C_A) {
+		LOG_INF("Volume up/down btn exchanged on ver3 USB sku");
+		buttons[BUTTON_VOLUME_UP].gpio = GPIO_VOLUME_DOWN_L;
+		buttons[BUTTON_VOLUME_DOWN].gpio = GPIO_VOLUME_UP_L;
+	}
+
+	/*
+	 * If the board version is 1
+	 * use ver1 rotation matrix.
+	 */
+	if (val == 1) {
+		LOG_INF("Switching to ver1 base");
+		motion_sensors[BASE_SENSOR].rot_standard_ref = &ALT_MAT;
+		motion_sensors[BASE_GYRO].rot_standard_ref = &ALT_MAT;
+	}
+
+	/*
+	 * If the firmware config indicates
+	 * an craaskbowl form factor, use the alternative
+	 * rotation matrix.
+	 */
+	ret = cros_cbi_get_fw_config(FW_LID_INVERSION, &val);
+	if (ret != 0) {
+		LOG_ERR("Error retrieving CBI FW_CONFIG field %d",
+			FW_LID_INVERSION);
+		return;
+	}
+	if (val == FW_LID_XY_ROT_180) {
+		LOG_INF("Lid sensor placement rotate 180 on xy plane");
+		motion_sensors[LID_SENSOR].rot_standard_ref = &LIS_ALT_MAT;
+		motion_sensors_alt[ALT_LID_S].rot_standard_ref = &BMA_ALT_MAT;
+	}
+
+	/* check which base sensor is used for motion_interrupt */
+	use_alt_sensor = cros_cbi_ssfc_check_match(
+		CBI_SSFC_VALUE_ID(DT_NODELABEL(base_sensor_1)));
+
+	motion_sensors_check_ssfc();
+
+	/* Check if it's clamshell or convertible */
+	ret = cros_cbi_get_fw_config(FORM_FACTOR, &val);
+	if (ret != 0) {
+		LOG_ERR("Error retrieving CBI FW_CONFIG field %d", FORM_FACTOR);
+		return;
+	}
+	if (val == CLAMSHELL) {
+		LOG_INF("Clamshell: disable motionsense function.");
+		motion_sensor_count = 0;
+		gmr_tablet_switch_disable();
+		gpio_disable_dt_interrupt(GPIO_INT_FROM_NODELABEL(int_imu));
+		gpio_pin_configure_dt(GPIO_DT_FROM_NODELABEL(gpio_imu_int_l),
+				      GPIO_DISCONNECTED);
+	}
+}
+DECLARE_HOOK(HOOK_INIT, form_factor_init, HOOK_PRIO_POST_I2C);