On 08/02/2013 05:02 PM, Arun Kumar K wrote:
Some sensors to be used with fimc-is are exclusively controlled
by the fimc-is firmware. This minimal sensor driver provides
the required info for the firmware to configure the sensors
sitting on I2C bus.
Signed-off-by: Arun Kumar K<arun.kk@xxxxxxxxxxx>
---
drivers/media/platform/exynos5-is/fimc-is-sensor.c | 46 +++++++++++++
drivers/media/platform/exynos5-is/fimc-is-sensor.h | 69 ++++++++++++++++++++
2 files changed, 115 insertions(+)
create mode 100644 drivers/media/platform/exynos5-is/fimc-is-sensor.c
create mode 100644 drivers/media/platform/exynos5-is/fimc-is-sensor.h
diff --git a/drivers/media/platform/exynos5-is/fimc-is-sensor.c b/drivers/media/platform/exynos5-is/fimc-is-sensor.c
new file mode 100644
index 0000000..3e4aae9
--- /dev/null
+++ b/drivers/media/platform/exynos5-is/fimc-is-sensor.c
@@ -0,0 +1,46 @@
+/*
+ * Samsung EXYNOS5250 FIMC-IS (Imaging Subsystem) driver
+ *
+ * Copyright (C) 2013 Samsung Electronics Co., Ltd.
+ * Authors: Sylwester Nawrocki<s.nawrocki@xxxxxxxxxxx>
+ * Arun Kumar K<arun.kk@xxxxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include "fimc-is-sensor.h"
+
+static const struct sensor_drv_data s5k6a3_drvdata = {
+ .id = FIMC_IS_SENSOR_ID_S5K6A3,
+ .open_timeout = S5K6A3_OPEN_TIMEOUT,
+ .setfile_name = "setfile_6a3.bin",
+};
+
+static const struct sensor_drv_data s5k4e5_drvdata = {
+ .id = FIMC_IS_SENSOR_ID_S5K4E5,
+ .open_timeout = S5K4E5_OPEN_TIMEOUT,
+ .setfile_name = "setfile_4e5.bin",
+};
+
+static const struct of_device_id fimc_is_sensor_of_ids[] = {
+ {
+ .compatible = "samsung,s5k6a3",
+ .data =&s5k6a3_drvdata,
+ },
+ {
+ .compatible = "samsung,s5k4e5",
+ .data =&s5k4e5_drvdata,
+ },
+ { }
+};
+
+const struct sensor_drv_data *exynos5_is_sensor_get_drvdata(
+ struct device_node *node)
+{
+ const struct of_device_id *of_id;
+
+ of_id = of_match_node(fimc_is_sensor_of_ids, node);
+ return of_id ? of_id->data : NULL;
+}
diff --git a/drivers/media/platform/exynos5-is/fimc-is-sensor.h b/drivers/media/platform/exynos5-is/fimc-is-sensor.h
new file mode 100644
index 0000000..51e18ea
--- /dev/null
+++ b/drivers/media/platform/exynos5-is/fimc-is-sensor.h
@@ -0,0 +1,69 @@
+/*
+ * Samsung EXYNOS4x12 FIMC-IS (Imaging Subsystem) driver
+ *
+ * Copyright (C) 2013 Samsung Electronics Co., Ltd.
+ *
+ * Authors: Sylwester Nawrocki<s.nawrocki@xxxxxxxxxxx>
+ * Younghwan Joo<yhwan.joo@xxxxxxxxxxx>
+ * Arun Kumar K<arun.kk@xxxxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef FIMC_IS_SENSOR_H_
+#define FIMC_IS_SENSOR_H_
+
+#include<linux/of.h>
+#include<linux/types.h>
+
+#define S5K6A3_OPEN_TIMEOUT 2000 /* ms */
+#define S5K6A3_SENSOR_WIDTH 1392
+#define S5K6A3_SENSOR_HEIGHT 1392
+
+#define S5K4E5_OPEN_TIMEOUT 2000 /* ms */
+#define S5K4E5_SENSOR_WIDTH 2560
+#define S5K4E5_SENSOR_HEIGHT 1920
+
+#define SENSOR_WIDTH_PADDING 16
+#define SENSOR_HEIGHT_PADDING 10
+
+enum fimc_is_sensor_id {
+ FIMC_IS_SENSOR_ID_S5K3H2 = 1,
+ FIMC_IS_SENSOR_ID_S5K6A3,
+ FIMC_IS_SENSOR_ID_S5K4E5,
+ FIMC_IS_SENSOR_ID_S5K3H7,
+ FIMC_IS_SENSOR_ID_CUSTOM,
+ FIMC_IS_SENSOR_ID_END
+};
+
+#define IS_SENSOR_CTRL_BUS_I2C0 0
+#define IS_SENSOR_CTRL_BUS_I2C1 1
Are these two constants used anywhere ?
+struct sensor_drv_data {
+ enum fimc_is_sensor_id id;
+ /* sensor open timeout in ms */
+ unsigned short open_timeout;
+ char *setfile_name;
+};
+
+/**
+ * struct fimc_is_sensor - fimc-is sensor data structure
+ * @drvdata: a pointer to the sensor's parameters data structure
+ * @i2c_bus: ISP I2C bus index (0...1)
+ * @test_pattern: true to enable video test pattern
+ */
+struct fimc_is_sensor {
+ const struct sensor_drv_data *drvdata;
+ unsigned int i2c_bus;
+ unsigned int width;
+ unsigned int height;
+ unsigned int pixel_width;
+ unsigned int pixel_height;
What is difference between width/height and pixel_width/pixel_height ?
Would be good to add some documentation for these fields.
+ u8 test_pattern;
+};
+
+const struct sensor_drv_data *exynos5_is_sensor_get_drvdata(
+ struct device_node *node);
+
+#endif /* FIMC_IS_SENSOR_H_ */
Thanks,
Sylwester
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