Ampton: Implement the functions about ar camera

BUG=b:119926441
BRAHCN=octopus
TEST=build success

Change-Id: I7ba0632c49836ba957c40d66ed4dfc5cf905c8c6
Signed-off-by: James_Chao <james_chao@asus.corp-partner.google.com>
Reviewed-on: https://chromium-review.googlesource.com/1349158
Commit-Ready: James Chao <james_chao@asus.corp-partner.google.com>
Tested-by: James Chao <james_chao@asus.corp-partner.google.com>
Reviewed-by: Marco Chen <marcochen@chromium.org>
Reviewed-by: Jett Rink <jettrink@chromium.org>

3 files changed, 32 insertions, 4 deletions

diff --git a/board/ampton/board.c b/board/ampton/board.c
index 065aea53f2..5f9c2a41cb 100644
--- a/board/ampton/board.c
+++ b/board/ampton/board.c
@@ -14,6 +14,7 @@
 #include "driver/accel_kionix.h"
 #include "driver/accelgyro_bmi160.h"
 #include "driver/ppc/sn5s330.h"
+#include "driver/sync.h"
 #include "driver/tcpm/it83xx_pd.h"
 #include "driver/tcpm/ps8xxx.h"
 #include "driver/usb_mux_it5205.h"
@@ -224,6 +225,17 @@ struct motion_sensor_t motion_sensors[] = {
 	 .min_frequency = BMI160_GYRO_MIN_FREQ,
 	 .max_frequency = BMI160_GYRO_MAX_FREQ,
 	},
+	[VSYNC] = {
+	 .name = "Camera VSYNC",
+	 .active_mask = SENSOR_ACTIVE_S0,
+	 .chip = MOTIONSENSE_CHIP_GPIO,
+	 .type = MOTIONSENSE_TYPE_SYNC,
+	 .location = MOTIONSENSE_LOC_CAMERA,
+	 .drv = &sync_drv,
+	 .default_range = 0,
+	 .min_frequency = 0,
+	 .max_frequency = 1,
+	},
 };
 
 unsigned int motion_sensor_count = ARRAY_SIZE(motion_sensors);
@@ -235,6 +247,12 @@ static int board_is_convertible(void)
 		|| sku_id == 255;
 }
 
+static int board_with_ar_cam(void)
+{
+	/* SKU ID of Ampton with AR Cam: 3, 4 */
+	return sku_id == 3 || sku_id == 4;
+}
+
 static void board_update_sensor_config_from_sku(void)
 {
 	if (board_is_convertible()) {
@@ -249,6 +267,14 @@ static void board_update_sensor_config_from_sku(void)
 		gpio_set_flags(GPIO_BASE_SIXAXIS_INT_L,
 			       GPIO_INPUT | GPIO_PULL_DOWN);
 	}
+
+	if (board_with_ar_cam()) {
+		/* Enable interrupt from camera */
+		gpio_enable_interrupt(GPIO_WFCAM_VSYNC);
+	} else {
+		/* Camera isn't stuffed, don't allow line to float */
+		gpio_set_flags(GPIO_WFCAM_VSYNC, GPIO_INPUT | GPIO_PULL_DOWN);
+	}
 }
 
 static void board_customize_usbc_mux(uint32_t board_version)
diff --git a/board/ampton/board.h b/board/ampton/board.h
index c4d6058560..9a406e1c3b 100644
--- a/board/ampton/board.h
+++ b/board/ampton/board.h
@@ -35,6 +35,7 @@
 
 #define CONFIG_ACCEL_KX022	/* Lid accel */
 #define CONFIG_ACCELGYRO_BMI160	/* Base accel */
+#define CONFIG_SYNC		/* Camera VSYNC */
 
 #define CONFIG_DYNAMIC_MOTION_SENSOR_COUNT
 /* Sensors without hardware FIFO are in forced mode */
@@ -61,9 +62,9 @@
 /* Depends on how fast the AP boots and typical ODRs */
 #define CONFIG_ACCEL_FIFO_THRES (CONFIG_ACCEL_FIFO / 3)
 #define CONFIG_MKBP_EVENT
-#define CONFIG_MKBP_USE_HOST_EVENT
 
-#define CONFIG_ACCELGYRO_BMI160_INT_EVENT TASK_EVENT_CUSTOM(1 << 2)
+#define CONFIG_ACCELGYRO_BMI160_INT_EVENT	TASK_EVENT_CUSTOM(1 << 2)
+#define CONFIG_SYNC_INT_EVENT		  	TASK_EVENT_CUSTOM(1 << 3)
 
 #ifndef __ASSEMBLER__
 
@@ -90,6 +91,7 @@ enum sensor_id {
 	LID_ACCEL,
 	BASE_ACCEL,
 	BASE_GYRO,
+	VSYNC,
 	SENSOR_COUNT
 };
 
diff --git a/board/ampton/gpio.inc b/board/ampton/gpio.inc
index e79acaccba..3de2c663c2 100644
--- a/board/ampton/gpio.inc
+++ b/board/ampton/gpio.inc
@@ -42,6 +42,7 @@ GPIO_INT(TABLET_MODE_L,		PIN(H, 4), GPIO_INT_BOTH, hall_sensor_isr)
 GPIO_INT(EC_VOLDN_BTN_ODL,	PIN(D, 6), GPIO_INT_BOTH, button_interrupt)
 GPIO_INT(EC_VOLUP_BTN_ODL,	PIN(D, 5), GPIO_INT_BOTH, button_interrupt)
 GPIO_INT(BASE_SIXAXIS_INT_L,	PIN(J, 2), GPIO_INT_FALLING | GPIO_SEL_1P8V, bmi160_interrupt)
+GPIO_INT(WFCAM_VSYNC,		PIN(D, 4), GPIO_INT_RISING, sync_interrupt)
 GPIO(LID_ACCEL_INT_L,		PIN(J, 3), GPIO_INPUT | GPIO_SEL_1P8V)
 
 GPIO(PCH_PLTRST_L,	 PIN(E, 3), GPIO_INPUT)		/* PLT_RST_L: Platform Reset from SoC */
@@ -111,8 +112,7 @@ GPIO(BAT_LED_AMBER,  PIN(A, 6), GPIO_OUT_LOW)		/* LED_1_EC */
 GPIO(BAT_LED_WHITE,  PIN(A, 3), GPIO_OUT_LOW)		/* LED_2_EC */
 
 /* Camera */
-GPIO(WFCAM_VSYNC,	PIN(D, 4), GPIO_INPUT)
-GPIO(CAM_SOC_EC_SYNC,	PIN(E, 6), GPIO_INPUT)
+GPIO(EC_INT_L, PIN(E, 6), GPIO_ODR_HIGH)
 
 UNIMPLEMENTED(KB_BL_PWR_EN)