[media] move i2c files into drivers/media/i2c

Move ancillary I2C drivers into drivers/media/i2c, in order to
better organize them.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 334 insertions, 0 deletions

diff --git a/drivers/media/i2c/m5mols/m5mols.h b/drivers/media/i2c/m5mols/m5mols.h
new file mode 100644
index 0000000..bb58991
--- /dev/null
+++ b/drivers/media/i2c/m5mols/m5mols.h
@@ -0,0 +1,334 @@
+/*
+ * Header for M-5MOLS 8M Pixel camera sensor with ISP
+ *
+ * Copyright (C) 2011 Samsung Electronics Co., Ltd.
+ * Author: HeungJun Kim <riverful.kim@samsung.com>
+ *
+ * Copyright (C) 2009 Samsung Electronics Co., Ltd.
+ * Author: Dongsoo Nathaniel Kim <dongsoo45.kim@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef M5MOLS_H
+#define M5MOLS_H
+
+#include <media/v4l2-subdev.h>
+#include "m5mols_reg.h"
+
+extern int m5mols_debug;
+
+enum m5mols_restype {
+	M5MOLS_RESTYPE_MONITOR,
+	M5MOLS_RESTYPE_CAPTURE,
+	M5MOLS_RESTYPE_MAX,
+};
+
+/**
+ * struct m5mols_resolution - structure for the resolution
+ * @type: resolution type according to the pixel code
+ * @width: width of the resolution
+ * @height: height of the resolution
+ * @reg: resolution preset register value
+ */
+struct m5mols_resolution {
+	u8 reg;
+	enum m5mols_restype type;
+	u16 width;
+	u16 height;
+};
+
+/**
+ * struct m5mols_exif - structure for the EXIF information of M-5MOLS
+ * @exposure_time: exposure time register value
+ * @shutter_speed: speed of the shutter register value
+ * @aperture: aperture register value
+ * @exposure_bias: it calls also EV bias
+ * @iso_speed: ISO register value
+ * @flash: status register value of the flash
+ * @sdr: status register value of the Subject Distance Range
+ * @qval: not written exact meaning in document
+ */
+struct m5mols_exif {
+	u32 exposure_time;
+	u32 shutter_speed;
+	u32 aperture;
+	u32 brightness;
+	u32 exposure_bias;
+	u16 iso_speed;
+	u16 flash;
+	u16 sdr;
+	u16 qval;
+};
+
+/**
+ * struct m5mols_capture - Structure for the capture capability
+ * @exif: EXIF information
+ * @main: size in bytes of the main image
+ * @thumb: size in bytes of the thumb image, if it was accompanied
+ * @total: total size in bytes of the produced image
+ */
+struct m5mols_capture {
+	struct m5mols_exif exif;
+	u32 main;
+	u32 thumb;
+	u32 total;
+};
+
+/**
+ * struct m5mols_scenemode - structure for the scenemode capability
+ * @metering: metering light register value
+ * @ev_bias: EV bias register value
+ * @wb_mode: mode which means the WhiteBalance is Auto or Manual
+ * @wb_preset: whitebalance preset register value in the Manual mode
+ * @chroma_en: register value whether the Chroma capability is enabled or not
+ * @chroma_lvl: chroma's level register value
+ * @edge_en: register value Whether the Edge capability is enabled or not
+ * @edge_lvl: edge's level register value
+ * @af_range: Auto Focus's range
+ * @fd_mode: Face Detection mode
+ * @mcc: Multi-axis Color Conversion which means emotion color
+ * @light: status of the Light
+ * @flash: status of the Flash
+ * @tone: Tone color which means Contrast
+ * @iso: ISO register value
+ * @capt_mode: Mode of the Image Stabilization while the camera capturing
+ * @wdr: Wide Dynamic Range register value
+ *
+ * The each value according to each scenemode is recommended in the documents.
+ */
+struct m5mols_scenemode {
+	u8 metering;
+	u8 ev_bias;
+	u8 wb_mode;
+	u8 wb_preset;
+	u8 chroma_en;
+	u8 chroma_lvl;
+	u8 edge_en;
+	u8 edge_lvl;
+	u8 af_range;
+	u8 fd_mode;
+	u8 mcc;
+	u8 light;
+	u8 flash;
+	u8 tone;
+	u8 iso;
+	u8 capt_mode;
+	u8 wdr;
+};
+
+/**
+ * struct m5mols_version - firmware version information
+ * @customer:	customer information
+ * @project:	version of project information according to customer
+ * @fw:		firmware revision
+ * @hw:		hardware revision
+ * @param:	version of the parameter
+ * @awb:	Auto WhiteBalance algorithm version
+ * @str:	information about manufacturer and packaging vendor
+ * @af:		Auto Focus version
+ *
+ * The register offset starts the customer version at 0x0, and it ends
+ * the awb version at 0x09. The customer, project information occupies 1 bytes
+ * each. And also the fw, hw, param, awb each requires 2 bytes. The str is
+ * unique string associated with firmware's version. It includes information
+ * about manufacturer and the vendor of the sensor's packaging. The least
+ * significant 2 bytes of the string indicate packaging manufacturer.
+ */
+#define VERSION_STRING_SIZE	22
+struct m5mols_version {
+	u8	customer;
+	u8	project;
+	u16	fw;
+	u16	hw;
+	u16	param;
+	u16	awb;
+	u8	str[VERSION_STRING_SIZE];
+	u8	af;
+};
+
+/**
+ * struct m5mols_info - M-5MOLS driver data structure
+ * @pdata: platform data
+ * @sd: v4l-subdev instance
+ * @pad: media pad
+ * @ffmt: current fmt according to resolution type
+ * @res_type: current resolution type
+ * @irq_waitq: waitqueue for the capture
+ * @irq_done: set to 1 in the interrupt handler
+ * @handle: control handler
+ * @auto_exposure: auto/manual exposure control
+ * @exposure_bias: exposure compensation control
+ * @exposure: manual exposure control
+ * @metering: exposure metering control
+ * @auto_iso: auto/manual ISO sensitivity control
+ * @iso: manual ISO sensitivity control
+ * @auto_wb: auto white balance control
+ * @lock_3a: 3A lock control
+ * @colorfx: color effect control
+ * @saturation: saturation control
+ * @zoom: zoom control
+ * @wdr: wide dynamic range control
+ * @stabilization: image stabilization control
+ * @jpeg_quality: JPEG compression quality control
+ * @ver: information of the version
+ * @cap: the capture mode attributes
+ * @isp_ready: 1 when the ISP controller has completed booting
+ * @power: current sensor's power status
+ * @ctrl_sync: 1 when the control handler state is restored in H/W
+ * @resolution:	register value for current resolution
+ * @mode: register value for current operation mode
+ * @set_power: optional power callback to the board code
+ */
+struct m5mols_info {
+	const struct m5mols_platform_data *pdata;
+	struct v4l2_subdev sd;
+	struct media_pad pad;
+	struct v4l2_mbus_framefmt ffmt[M5MOLS_RESTYPE_MAX];
+	int res_type;
+
+	wait_queue_head_t irq_waitq;
+	atomic_t irq_done;
+
+	struct v4l2_ctrl_handler handle;
+	struct {
+		/* exposure/exposure bias/auto exposure cluster */
+		struct v4l2_ctrl *auto_exposure;
+		struct v4l2_ctrl *exposure_bias;
+		struct v4l2_ctrl *exposure;
+		struct v4l2_ctrl *metering;
+	};
+	struct {
+		/* iso/auto iso cluster */
+		struct v4l2_ctrl *auto_iso;
+		struct v4l2_ctrl *iso;
+	};
+	struct v4l2_ctrl *auto_wb;
+
+	struct v4l2_ctrl *lock_3a;
+	struct v4l2_ctrl *colorfx;
+	struct v4l2_ctrl *saturation;
+	struct v4l2_ctrl *zoom;
+	struct v4l2_ctrl *wdr;
+	struct v4l2_ctrl *stabilization;
+	struct v4l2_ctrl *jpeg_quality;
+
+	struct m5mols_version ver;
+	struct m5mols_capture cap;
+
+	unsigned int isp_ready:1;
+	unsigned int power:1;
+	unsigned int ctrl_sync:1;
+
+	u8 resolution;
+	u8 mode;
+
+	int (*set_power)(struct device *dev, int on);
+};
+
+#define is_available_af(__info)	(__info->ver.af)
+#define is_code(__code, __type) (__code == m5mols_default_ffmt[__type].code)
+#define is_manufacturer(__info, __manufacturer)	\
+				(__info->ver.str[0] == __manufacturer[0] && \
+				 __info->ver.str[1] == __manufacturer[1])
+/*
+ * I2C operation of the M-5MOLS
+ *
+ * The I2C read operation of the M-5MOLS requires 2 messages. The first
+ * message sends the information about the command, command category, and total
+ * message size. The second message is used to retrieve the data specifed in
+ * the first message
+ *
+ *   1st message                                2nd message
+ *   +-------+---+----------+-----+-------+     +------+------+------+------+
+ *   | size1 | R | category | cmd | size2 |     | d[0] | d[1] | d[2] | d[3] |
+ *   +-------+---+----------+-----+-------+     +------+------+------+------+
+ *   - size1: message data size(5 in this case)
+ *   - size2: desired buffer size of the 2nd message
+ *   - d[0..3]: according to size2
+ *
+ * The I2C write operation needs just one message. The message includes
+ * category, command, total size, and desired data.
+ *
+ *   1st message
+ *   +-------+---+----------+-----+------+------+------+------+
+ *   | size1 | W | category | cmd | d[0] | d[1] | d[2] | d[3] |
+ *   +-------+---+----------+-----+------+------+------+------+
+ *   - d[0..3]: according to size1
+ */
+int m5mols_read_u8(struct v4l2_subdev *sd, u32 reg_comb, u8 *val);
+int m5mols_read_u16(struct v4l2_subdev *sd, u32 reg_comb, u16 *val);
+int m5mols_read_u32(struct v4l2_subdev *sd, u32 reg_comb, u32 *val);
+int m5mols_write(struct v4l2_subdev *sd, u32 reg_comb, u32 val);
+
+int m5mols_busy_wait(struct v4l2_subdev *sd, u32 reg, u32 value, u32 mask,
+		     int timeout);
+
+/* Mask value for busy waiting until M-5MOLS I2C interface is initialized */
+#define M5MOLS_I2C_RDY_WAIT_FL		(1 << 16)
+/* ISP state transition timeout, in ms */
+#define M5MOLS_MODE_CHANGE_TIMEOUT	200
+#define M5MOLS_BUSY_WAIT_DEF_TIMEOUT	250
+
+/*
+ * Mode operation of the M-5MOLS
+ *
+ * Changing the mode of the M-5MOLS is needed right executing order.
+ * There are three modes(PARAMETER, MONITOR, CAPTURE) which can be changed
+ * by user. There are various categories associated with each mode.
+ *
+ * +============================================================+
+ * | mode	| category					|
+ * +============================================================+
+ * | FLASH	| FLASH(only after Stand-by or Power-on)	|
+ * | SYSTEM	| SYSTEM(only after sensor arm-booting)		|
+ * | PARAMETER	| PARAMETER					|
+ * | MONITOR	| MONITOR(preview), Auto Focus, Face Detection	|
+ * | CAPTURE	| Single CAPTURE, Preview(recording)		|
+ * +============================================================+
+ *
+ * The available executing order between each modes are as follows:
+ *   PARAMETER <---> MONITOR <---> CAPTURE
+ */
+int m5mols_set_mode(struct m5mols_info *info, u8 mode);
+
+int m5mols_enable_interrupt(struct v4l2_subdev *sd, u8 reg);
+int m5mols_wait_interrupt(struct v4l2_subdev *sd, u8 condition, u32 timeout);
+int m5mols_restore_controls(struct m5mols_info *info);
+int m5mols_start_capture(struct m5mols_info *info);
+int m5mols_do_scenemode(struct m5mols_info *info, u8 mode);
+int m5mols_lock_3a(struct m5mols_info *info, bool lock);
+int m5mols_set_ctrl(struct v4l2_ctrl *ctrl);
+int m5mols_init_controls(struct v4l2_subdev *sd);
+
+/* The firmware function */
+int m5mols_update_fw(struct v4l2_subdev *sd,
+		     int (*set_power)(struct m5mols_info *, bool));
+
+static inline struct m5mols_info *to_m5mols(struct v4l2_subdev *subdev)
+{
+	return container_of(subdev, struct m5mols_info, sd);
+}
+
+static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
+{
+	struct m5mols_info *info = container_of(ctrl->handler,
+						struct m5mols_info, handle);
+	return &info->sd;
+}
+
+static inline void m5mols_set_ctrl_mode(struct v4l2_ctrl *ctrl,
+					unsigned int mode)
+{
+	ctrl->priv = (void *)mode;
+}
+
+static inline unsigned int m5mols_get_ctrl_mode(struct v4l2_ctrl *ctrl)
+{
+	return (unsigned int)ctrl->priv;
+}
+
+#endif	/* M5MOLS_H */