asurada: enable light sensor tcs3400

BUG=b:150341271
TEST=accelread 4
BRANCH=none

Signed-off-by: Ting Shen <phoenixshen@google.com>
Change-Id: Ied14172644ddbcd6e4dd6db9f65cbfa1d17e4def
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2217217
Reviewed-by: Eric Yilun Lin <yllin@chromium.org>
Tested-by: Ting Shen <phoenixshen@chromium.org>
Commit-Queue: Ting Shen <phoenixshen@chromium.org>

3 files changed, 101 insertions, 1 deletions

diff --git a/board/asurada/board.c b/board/asurada/board.c
index 8f325d3f3f..4443e73cc6 100644
--- a/board/asurada/board.c
+++ b/board/asurada/board.c
@@ -14,6 +14,7 @@
 #include "console.h"
 #include "driver/accel_lis2dw12.h"
 #include "driver/accelgyro_bmi_common.h"
+#include "driver/als_tcs3400.h"
 #include "driver/bc12/mt6360.h"
 #include "driver/bc12/pi3usb9201.h"
 #include "driver/charger/isl923x.h"
@@ -543,6 +544,59 @@ static const mat33_fp_t mag_standard_ref = {
 	{0, 0, FLOAT_TO_FP(-1)},
 };
 
+/* TCS3400 private data */
+static struct als_drv_data_t g_tcs3400_data = {
+	.als_cal.scale = 1,
+	.als_cal.uscale = 0,
+	.als_cal.offset = 0,
+	.als_cal.channel_scale = {
+		.k_channel_scale = ALS_CHANNEL_SCALE(1.0), /* kc */
+		.cover_scale = ALS_CHANNEL_SCALE(1.0),     /* CT */
+	},
+};
+
+static struct tcs3400_rgb_drv_data_t g_tcs3400_rgb_data = {
+	/*
+	 * TODO: calculate the actual coefficients and scaling factors
+	 */
+	.calibration.rgb_cal[X] = {
+		.offset = 0,
+		.scale = {
+			.k_channel_scale = ALS_CHANNEL_SCALE(1.0), /* kr */
+			.cover_scale = ALS_CHANNEL_SCALE(1.0)
+		},
+		.coeff[TCS_RED_COEFF_IDX] = FLOAT_TO_FP(0),
+		.coeff[TCS_GREEN_COEFF_IDX] = FLOAT_TO_FP(0),
+		.coeff[TCS_BLUE_COEFF_IDX] = FLOAT_TO_FP(0),
+		.coeff[TCS_CLEAR_COEFF_IDX] = FLOAT_TO_FP(0),
+	},
+	.calibration.rgb_cal[Y] = {
+		.offset = 0,
+		.scale = {
+			.k_channel_scale = ALS_CHANNEL_SCALE(1.0), /* kg */
+			.cover_scale = ALS_CHANNEL_SCALE(1.0)
+		},
+		.coeff[TCS_RED_COEFF_IDX] = FLOAT_TO_FP(0),
+		.coeff[TCS_GREEN_COEFF_IDX] = FLOAT_TO_FP(0),
+		.coeff[TCS_BLUE_COEFF_IDX] = FLOAT_TO_FP(0),
+		.coeff[TCS_CLEAR_COEFF_IDX] = FLOAT_TO_FP(0.1),
+	},
+	.calibration.rgb_cal[Z] = {
+		.offset = 0,
+		.scale = {
+			.k_channel_scale = ALS_CHANNEL_SCALE(1.0), /* kb */
+			.cover_scale = ALS_CHANNEL_SCALE(1.0)
+		},
+		.coeff[TCS_RED_COEFF_IDX] = FLOAT_TO_FP(0),
+		.coeff[TCS_GREEN_COEFF_IDX] = FLOAT_TO_FP(0),
+		.coeff[TCS_BLUE_COEFF_IDX] = FLOAT_TO_FP(0),
+		.coeff[TCS_CLEAR_COEFF_IDX] = FLOAT_TO_FP(0),
+	},
+	.calibration.irt = INT_TO_FP(1),
+	.saturation.again = TCS_DEFAULT_AGAIN,
+	.saturation.atime = TCS_DEFAULT_ATIME,
+};
+
 struct motion_sensor_t motion_sensors[] = {
 	/*
 	 * Note: bmi160: supports accelerometer and gyro sensor
@@ -637,5 +691,40 @@ struct motion_sensor_t motion_sensors[] = {
 			},
 		},
 	},
+	[CLEAR_ALS] = {
+		.name = "Clear Light",
+		.active_mask = SENSOR_ACTIVE_S0_S3,
+		.chip = MOTIONSENSE_CHIP_TCS3400,
+		.type = MOTIONSENSE_TYPE_LIGHT,
+		.location = MOTIONSENSE_LOC_LID,
+		.drv = &tcs3400_drv,
+		.drv_data = &g_tcs3400_data,
+		.port = I2C_PORT_ACCEL,
+		.i2c_spi_addr_flags = TCS3400_I2C_ADDR_FLAGS,
+		.rot_standard_ref = NULL,
+		.default_range = 0x10000, /* scale = 1x, uscale = 0 */
+		.min_frequency = TCS3400_LIGHT_MIN_FREQ,
+		.max_frequency = TCS3400_LIGHT_MAX_FREQ,
+		.config = {
+			/* Run ALS sensor in S0 */
+			[SENSOR_CONFIG_EC_S0] = {
+				.odr = 1000,
+			},
+		},
+	},
+	[RGB_ALS] = {
+		.name = "RGB Light",
+		.active_mask = SENSOR_ACTIVE_S0_S3,
+		.chip = MOTIONSENSE_CHIP_TCS3400,
+		.type = MOTIONSENSE_TYPE_LIGHT_RGB,
+		.location = MOTIONSENSE_LOC_LID,
+		.drv = &tcs3400_rgb_drv,
+		.drv_data = &g_tcs3400_rgb_data,
+		.rot_standard_ref = NULL,
+		.default_range = 0x10000, /* scale = 1x, uscale = 0 */
+		/* freq = 0 indicates we should not use sensor directly */
+		.min_frequency = 0,
+		.max_frequency = 0,
+	},
 };
 const unsigned int motion_sensor_count = ARRAY_SIZE(motion_sensors);
diff --git a/board/asurada/board.h b/board/asurada/board.h
index ba86327876..458e0d5405 100644
--- a/board/asurada/board.h
+++ b/board/asurada/board.h
@@ -158,6 +158,14 @@
 #define CONFIG_TEMP_SENSOR
 #define CONFIG_THERMISTOR
 
+#define ALS_COUNT 1
+#define CONFIG_ALS_TCS3400
+#define CONFIG_ALS_TCS3400_INT_EVENT \
+	TASK_EVENT_MOTION_SENSOR_INTERRUPT(CLEAR_ALS)
+#define CONFIG_ALS_TCS3400_EMULATED_IRQ_EVENT
+
+#define CONFIG_ACCEL_FORCE_MODE_MASK BIT(CLEAR_ALS)
+
 /* SPI / Host Command */
 #define CONFIG_SPI
 #define CONFIG_SUPPRESSED_HOST_COMMANDS \
@@ -236,6 +244,8 @@ enum sensor_id {
 	BASE_GYRO,
 	BASE_MAG,
 	LID_ACCEL,
+	CLEAR_ALS,
+	RGB_ALS,
 	SENSOR_COUNT,
 };
 
diff --git a/board/asurada/gpio.inc b/board/asurada/gpio.inc
index 316f4a7882..7dd8aa6bf0 100644
--- a/board/asurada/gpio.inc
+++ b/board/asurada/gpio.inc
@@ -33,6 +33,8 @@ GPIO_INT(BASE_IMU_INT_L,     PIN(J, 2), GPIO_INT_FALLING | GPIO_SEL_1P8V,
          bmi160_interrupt)
 GPIO_INT(LID_ACCEL_INT_L,    PIN(J, 3), GPIO_INT_FALLING | GPIO_SEL_1P8V,
          lis2dw12_interrupt)
+GPIO_INT(ALS_RGB_INT_ODL,    PIN(F, 0), GPIO_INT_FALLING,
+         tcs3400_interrupt)
 
 /* USB-C interrupts */
 GPIO_INT(USB_C0_PPC_INT_ODL, PIN(D, 1), GPIO_INT_BOTH, ppc_interrupt)
@@ -149,7 +151,6 @@ UNIMPLEMENTED_GPIO(TEMP_SENSOR_CHARGER,    PIN(I, 5))
 UNIMPLEMENTED_GPIO(CHARGER_PMON,           PIN(I, 6))
 UNIMPLEMENTED_GPIO(TEMP_SENSOR_AP,         PIN(I, 7))
 UNIMPLEMENTED_GPIO(EC_DPBRDG_HPD_ODL,      PIN(J, 0))
-UNIMPLEMENTED_GPIO(ALS_RGB_INT_ODL,        PIN(F, 0))
 UNIMPLEMENTED_GPIO(EC_USB_C0_CC1,          PIN(F, 4))
 UNIMPLEMENTED_GPIO(EC_USB_C0_CC2,          PIN(F, 5))
 UNIMPLEMENTED_GPIO(EC_USB_C1_CC1,          PIN(H, 1))