drivers/media/platform/exynos4-is/fimc-is.h - kernel/quantenna - Git at Google

 /*
  * Samsung EXYNOS4x12 FIMC-IS (Imaging Subsystem) driver
  *
  * Copyright (C) 2013 Samsung Electronics Co., Ltd.
  *
  * Authors: Younghwan Joo <yhwan.joo@samsung.com>
  *          Sylwester Nawrocki <s.nawrocki@samsung.com>
  *
  * 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_H_
 #define FIMC_IS_H_

 #include <asm/barrier.h>
 #include <linux/clk.h>
 #include <linux/device.h>
 #include <linux/kernel.h>
 #include <linux/pinctrl/consumer.h>
 #include <linux/platform_device.h>
 #include <linux/sizes.h>
 #include <linux/spinlock.h>
 #include <linux/types.h>
 #include <media/videobuf2-v4l2.h>
 #include <media/v4l2-ctrls.h>

 #include "fimc-isp.h"
 #include "fimc-is-command.h"
 #include "fimc-is-sensor.h"
 #include "fimc-is-param.h"
 #include "fimc-is-regs.h"

 #define FIMC_IS_DRV_NAME		"exynos4-fimc-is"

 #define FIMC_IS_FW_FILENAME		"exynos4_fimc_is_fw.bin"
 #define FIMC_IS_SETFILE_6A3		"exynos4_s5k6a3_setfile.bin"

 #define FIMC_IS_FW_LOAD_TIMEOUT		1000 /* ms */
 #define FIMC_IS_POWER_ON_TIMEOUT	1000 /* us */

 #define FIMC_IS_SENSORS_NUM		2

 /* Memory definitions */
 #define FIMC_IS_CPU_MEM_SIZE		(0xa00000)
 #define FIMC_IS_CPU_BASE_MASK		((1 << 26) - 1)
 #define FIMC_IS_REGION_SIZE		0x5000

 #define FIMC_IS_DEBUG_REGION_OFFSET	0x0084b000
 #define FIMC_IS_SHARED_REGION_OFFSET	0x008c0000
 #define FIMC_IS_FW_INFO_LEN		31
 #define FIMC_IS_FW_VER_LEN		7
 #define FIMC_IS_FW_DESC_LEN		(FIMC_IS_FW_INFO_LEN + \
 					 FIMC_IS_FW_VER_LEN)
 #define FIMC_IS_SETFILE_INFO_LEN	39

 #define FIMC_IS_EXTRA_MEM_SIZE		(FIMC_IS_EXTRA_FW_SIZE + \
 					 FIMC_IS_EXTRA_SETFILE_SIZE + 0x1000)
 #define FIMC_IS_EXTRA_FW_SIZE		0x180000
 #define FIMC_IS_EXTRA_SETFILE_SIZE	0x4b000

 /* TODO: revisit */
 #define FIMC_IS_FW_ADDR_MASK		((1 << 26) - 1)
 #define FIMC_IS_FW_SIZE_MAX		(SZ_4M)
 #define FIMC_IS_FW_SIZE_MIN		(SZ_32K)

 #define ATCLK_MCUISP_FREQUENCY		100000000UL
 #define ACLK_AXI_FREQUENCY		100000000UL

 enum {
 	ISS_CLK_PPMUISPX,
 	ISS_CLK_PPMUISPMX,
 	ISS_CLK_LITE0,
 	ISS_CLK_LITE1,
 	ISS_CLK_MPLL,
 	ISS_CLK_ISP,
 	ISS_CLK_DRC,
 	ISS_CLK_FD,
 	ISS_CLK_MCUISP,
 	ISS_CLK_UART,
 	ISS_GATE_CLKS_MAX,
 	ISS_CLK_ISP_DIV0 = ISS_GATE_CLKS_MAX,
 	ISS_CLK_ISP_DIV1,
 	ISS_CLK_MCUISP_DIV0,
 	ISS_CLK_MCUISP_DIV1,
 	ISS_CLK_ACLK200,
 	ISS_CLK_ACLK200_DIV,
 	ISS_CLK_ACLK400MCUISP,
 	ISS_CLK_ACLK400MCUISP_DIV,
 	ISS_CLKS_MAX
 };

 /* The driver's internal state flags */
 enum {
 	IS_ST_IDLE,
 	IS_ST_PWR_ON,
 	IS_ST_A5_PWR_ON,
 	IS_ST_FW_LOADED,
 	IS_ST_OPEN_SENSOR,
 	IS_ST_SETFILE_LOADED,
 	IS_ST_INIT_DONE,
 	IS_ST_STREAM_ON,
 	IS_ST_STREAM_OFF,
 	IS_ST_CHANGE_MODE,
 	IS_ST_BLOCK_CMD_CLEARED,
 	IS_ST_SET_ZOOM,
 	IS_ST_PWR_SUBIP_ON,
 	IS_ST_END,
 };

 enum af_state {
 	FIMC_IS_AF_IDLE		= 0,
 	FIMC_IS_AF_SETCONFIG	= 1,
 	FIMC_IS_AF_RUNNING	= 2,
 	FIMC_IS_AF_LOCK		= 3,
 	FIMC_IS_AF_ABORT	= 4,
 	FIMC_IS_AF_FAILED	= 5,
 };

 enum af_lock_state {
 	FIMC_IS_AF_UNLOCKED	= 0,
 	FIMC_IS_AF_LOCKED	= 2
 };

 enum ae_lock_state {
 	FIMC_IS_AE_UNLOCKED	= 0,
 	FIMC_IS_AE_LOCKED	= 1
 };

 enum awb_lock_state {
 	FIMC_IS_AWB_UNLOCKED	= 0,
 	FIMC_IS_AWB_LOCKED	= 1
 };

 enum {
 	IS_METERING_CONFIG_CMD,
 	IS_METERING_CONFIG_WIN_POS_X,
 	IS_METERING_CONFIG_WIN_POS_Y,
 	IS_METERING_CONFIG_WIN_WIDTH,
 	IS_METERING_CONFIG_WIN_HEIGHT,
 	IS_METERING_CONFIG_MAX
 };

 struct is_setfile {
 	const struct firmware *info;
 	int state;
 	u32 sub_index;
 	u32 base;
 	size_t size;
 };

 struct is_fd_result_header {
 	u32 offset;
 	u32 count;
 	u32 index;
 	u32 curr_index;
 	u32 width;
 	u32 height;
 };

 struct is_af_info {
 	u16 mode;
 	u32 af_state;
 	u32 af_lock_state;
 	u32 ae_lock_state;
 	u32 awb_lock_state;
 	u16 pos_x;
 	u16 pos_y;
 	u16 prev_pos_x;
 	u16 prev_pos_y;
 	u16 use_af;
 };

 struct fimc_is_firmware {
 	const struct firmware *f_w;

 	dma_addr_t paddr;
 	void *vaddr;
 	unsigned int size;

 	char info[FIMC_IS_FW_INFO_LEN + 1];
 	char version[FIMC_IS_FW_VER_LEN + 1];
 	char setfile_info[FIMC_IS_SETFILE_INFO_LEN + 1];
 	u8 state;
 };

 struct fimc_is_memory {
 	/* physical base address */
 	dma_addr_t paddr;
 	/* virtual base address */
 	void *vaddr;
 	/* total length */
 	unsigned int size;
 };

 #define FIMC_IS_I2H_MAX_ARGS	12

 struct i2h_cmd {
 	u32 cmd;
 	u32 sensor_id;
 	u16 num_args;
 	u32 args[FIMC_IS_I2H_MAX_ARGS];
 };

 struct h2i_cmd {
 	u16 cmd_type;
 	u32 entry_id;
 };

 #define FIMC_IS_DEBUG_MSG	0x3f
 #define FIMC_IS_DEBUG_LEVEL	3

 struct fimc_is_setfile {
 	const struct firmware *info;
 	unsigned int state;
 	unsigned int size;
 	u32 sub_index;
 	u32 base;
 };

 struct chain_config {
 	struct global_param	global;
 	struct sensor_param	sensor;
 	struct isp_param	isp;
 	struct drc_param	drc;
 	struct fd_param		fd;

 	unsigned long		p_region_index[2];
 };

 /**
  * struct fimc_is - fimc-is data structure
  * @pdev: pointer to FIMC-IS platform device
  * @pctrl: pointer to pinctrl structure for this device
  * @v4l2_dev: pointer to top the level v4l2_device
  * @alloc_ctx: videobuf2 memory allocator context
  * @lock: mutex serializing video device and the subdev operations
  * @slock: spinlock protecting this data structure and the hw registers
  * @clocks: FIMC-LITE gate clock
  * @regs: MCUCTL mmapped registers region
  * @pmu_regs: PMU ISP mmapped registers region
  * @irq_queue: interrupt handling waitqueue
  * @lpm: low power mode flag
  * @state: internal driver's state flags
  */
 struct fimc_is {
 	struct platform_device		*pdev;
 	struct pinctrl			*pctrl;
 	struct v4l2_device		*v4l2_dev;

 	struct fimc_is_firmware		fw;
 	struct fimc_is_memory		memory;
 	struct firmware			*f_w;

 	struct fimc_isp			isp;
 	struct fimc_is_sensor		sensor[FIMC_IS_SENSORS_NUM];
 	struct fimc_is_setfile		setfile;

 	struct vb2_alloc_ctx		*alloc_ctx;
 	struct v4l2_ctrl_handler	ctrl_handler;

 	struct mutex			lock;
 	spinlock_t			slock;

 	struct clk			*clocks[ISS_CLKS_MAX];
 	void __iomem			*regs;
 	void __iomem			*pmu_regs;
 	int				irq;
 	wait_queue_head_t		irq_queue;
 	u8				lpm;

 	unsigned long			state;
 	unsigned int			sensor_index;

 	struct i2h_cmd			i2h_cmd;
 	struct h2i_cmd			h2i_cmd;
 	struct is_fd_result_header	fd_header;

 	struct chain_config		config[IS_SC_MAX];
 	unsigned			config_index;

 	struct is_region		*is_p_region;
 	dma_addr_t			is_dma_p_region;
 	struct is_share_region		*is_shared_region;
 	struct is_af_info		af;

 	struct dentry			*debugfs_entry;
 };

 static inline struct fimc_is *fimc_isp_to_is(struct fimc_isp *isp)
 {
 	return container_of(isp, struct fimc_is, isp);
 }

 static inline struct chain_config *__get_curr_is_config(struct fimc_is *is)
 {
 	return &is->config[is->config_index];
 }

 static inline void fimc_is_mem_barrier(void)
 {
 	mb();
 }

 static inline void fimc_is_set_param_bit(struct fimc_is *is, int num)
 {
 	struct chain_config *cfg = &is->config[is->config_index];

 	set_bit(num, &cfg->p_region_index[0]);
 }

 static inline void fimc_is_set_param_ctrl_cmd(struct fimc_is *is, int cmd)
 {
 	is->is_p_region->parameter.isp.control.cmd = cmd;
 }

 static inline void mcuctl_write(u32 v, struct fimc_is *is, unsigned int offset)
 {
 	writel(v, is->regs + offset);
 }

 static inline u32 mcuctl_read(struct fimc_is *is, unsigned int offset)
 {
 	return readl(is->regs + offset);
 }

 static inline void pmuisp_write(u32 v, struct fimc_is *is, unsigned int offset)
 {
 	writel(v, is->pmu_regs + offset);
 }

 static inline u32 pmuisp_read(struct fimc_is *is, unsigned int offset)
 {
 	return readl(is->pmu_regs + offset);
 }

 int fimc_is_wait_event(struct fimc_is *is, unsigned long bit,
 		       unsigned int state, unsigned int timeout);
 int fimc_is_cpu_set_power(struct fimc_is *is, int on);
 int fimc_is_start_firmware(struct fimc_is *is);
 int fimc_is_hw_initialize(struct fimc_is *is);
 void fimc_is_log_dump(const char *level, const void *buf, size_t len);

 #endif /* FIMC_IS_H_ */
	/*
	* Samsung EXYNOS4x12 FIMC-IS (Imaging Subsystem) driver
	*
	* Copyright (C) 2013 Samsung Electronics Co., Ltd.
	*
	* Authors: Younghwan Joo <yhwan.joo@samsung.com>
	* Sylwester Nawrocki <s.nawrocki@samsung.com>
	*
	* 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_H_
	#define FIMC_IS_H_

	#include <asm/barrier.h>
	#include <linux/clk.h>
	#include <linux/device.h>
	#include <linux/kernel.h>
	#include <linux/pinctrl/consumer.h>
	#include <linux/platform_device.h>
	#include <linux/sizes.h>
	#include <linux/spinlock.h>
	#include <linux/types.h>
	#include <media/videobuf2-v4l2.h>
	#include <media/v4l2-ctrls.h>

	#include "fimc-isp.h"
	#include "fimc-is-command.h"
	#include "fimc-is-sensor.h"
	#include "fimc-is-param.h"
	#include "fimc-is-regs.h"

	#define FIMC_IS_DRV_NAME "exynos4-fimc-is"

	#define FIMC_IS_FW_FILENAME "exynos4_fimc_is_fw.bin"
	#define FIMC_IS_SETFILE_6A3 "exynos4_s5k6a3_setfile.bin"

	#define FIMC_IS_FW_LOAD_TIMEOUT 1000 /* ms */
	#define FIMC_IS_POWER_ON_TIMEOUT 1000 /* us */

	#define FIMC_IS_SENSORS_NUM 2

	/* Memory definitions */
	#define FIMC_IS_CPU_MEM_SIZE (0xa00000)
	#define FIMC_IS_CPU_BASE_MASK ((1 << 26) - 1)
	#define FIMC_IS_REGION_SIZE 0x5000

	#define FIMC_IS_DEBUG_REGION_OFFSET 0x0084b000
	#define FIMC_IS_SHARED_REGION_OFFSET 0x008c0000
	#define FIMC_IS_FW_INFO_LEN 31
	#define FIMC_IS_FW_VER_LEN 7
	#define FIMC_IS_FW_DESC_LEN (FIMC_IS_FW_INFO_LEN + \
	FIMC_IS_FW_VER_LEN)
	#define FIMC_IS_SETFILE_INFO_LEN 39

	#define FIMC_IS_EXTRA_MEM_SIZE (FIMC_IS_EXTRA_FW_SIZE + \
	FIMC_IS_EXTRA_SETFILE_SIZE + 0x1000)
	#define FIMC_IS_EXTRA_FW_SIZE 0x180000
	#define FIMC_IS_EXTRA_SETFILE_SIZE 0x4b000

	/* TODO: revisit */
	#define FIMC_IS_FW_ADDR_MASK ((1 << 26) - 1)
	#define FIMC_IS_FW_SIZE_MAX (SZ_4M)
	#define FIMC_IS_FW_SIZE_MIN (SZ_32K)

	#define ATCLK_MCUISP_FREQUENCY 100000000UL
	#define ACLK_AXI_FREQUENCY 100000000UL

	enum {
	ISS_CLK_PPMUISPX,
	ISS_CLK_PPMUISPMX,
	ISS_CLK_LITE0,
	ISS_CLK_LITE1,
	ISS_CLK_MPLL,
	ISS_CLK_ISP,
	ISS_CLK_DRC,
	ISS_CLK_FD,
	ISS_CLK_MCUISP,
	ISS_CLK_UART,
	ISS_GATE_CLKS_MAX,
	ISS_CLK_ISP_DIV0 = ISS_GATE_CLKS_MAX,
	ISS_CLK_ISP_DIV1,
	ISS_CLK_MCUISP_DIV0,
	ISS_CLK_MCUISP_DIV1,
	ISS_CLK_ACLK200,
	ISS_CLK_ACLK200_DIV,
	ISS_CLK_ACLK400MCUISP,
	ISS_CLK_ACLK400MCUISP_DIV,
	ISS_CLKS_MAX
	};

	/* The driver's internal state flags */
	enum {
	IS_ST_IDLE,
	IS_ST_PWR_ON,
	IS_ST_A5_PWR_ON,
	IS_ST_FW_LOADED,
	IS_ST_OPEN_SENSOR,
	IS_ST_SETFILE_LOADED,
	IS_ST_INIT_DONE,
	IS_ST_STREAM_ON,
	IS_ST_STREAM_OFF,
	IS_ST_CHANGE_MODE,
	IS_ST_BLOCK_CMD_CLEARED,
	IS_ST_SET_ZOOM,
	IS_ST_PWR_SUBIP_ON,
	IS_ST_END,
	};

	enum af_state {
	FIMC_IS_AF_IDLE = 0,
	FIMC_IS_AF_SETCONFIG = 1,
	FIMC_IS_AF_RUNNING = 2,
	FIMC_IS_AF_LOCK = 3,
	FIMC_IS_AF_ABORT = 4,
	FIMC_IS_AF_FAILED = 5,
	};

	enum af_lock_state {
	FIMC_IS_AF_UNLOCKED = 0,
	FIMC_IS_AF_LOCKED = 2
	};

	enum ae_lock_state {
	FIMC_IS_AE_UNLOCKED = 0,
	FIMC_IS_AE_LOCKED = 1
	};

	enum awb_lock_state {
	FIMC_IS_AWB_UNLOCKED = 0,
	FIMC_IS_AWB_LOCKED = 1
	};

	enum {
	IS_METERING_CONFIG_CMD,
	IS_METERING_CONFIG_WIN_POS_X,
	IS_METERING_CONFIG_WIN_POS_Y,
	IS_METERING_CONFIG_WIN_WIDTH,
	IS_METERING_CONFIG_WIN_HEIGHT,
	IS_METERING_CONFIG_MAX
	};

	struct is_setfile {
	const struct firmware *info;
	int state;
	u32 sub_index;
	u32 base;
	size_t size;
	};

	struct is_fd_result_header {
	u32 offset;
	u32 count;
	u32 index;
	u32 curr_index;
	u32 width;
	u32 height;
	};

	struct is_af_info {
	u16 mode;
	u32 af_state;
	u32 af_lock_state;
	u32 ae_lock_state;
	u32 awb_lock_state;
	u16 pos_x;
	u16 pos_y;
	u16 prev_pos_x;
	u16 prev_pos_y;
	u16 use_af;
	};

	struct fimc_is_firmware {
	const struct firmware *f_w;

	dma_addr_t paddr;
	void *vaddr;
	unsigned int size;

	char info[FIMC_IS_FW_INFO_LEN + 1];
	char version[FIMC_IS_FW_VER_LEN + 1];
	char setfile_info[FIMC_IS_SETFILE_INFO_LEN + 1];
	u8 state;
	};

	struct fimc_is_memory {
	/* physical base address */
	dma_addr_t paddr;
	/* virtual base address */
	void *vaddr;
	/* total length */
	unsigned int size;
	};

	#define FIMC_IS_I2H_MAX_ARGS 12

	struct i2h_cmd {
	u32 cmd;
	u32 sensor_id;
	u16 num_args;
	u32 args[FIMC_IS_I2H_MAX_ARGS];
	};

	struct h2i_cmd {
	u16 cmd_type;
	u32 entry_id;
	};

	#define FIMC_IS_DEBUG_MSG 0x3f
	#define FIMC_IS_DEBUG_LEVEL 3

	struct fimc_is_setfile {
	const struct firmware *info;
	unsigned int state;
	unsigned int size;
	u32 sub_index;
	u32 base;
	};

	struct chain_config {
	struct global_param global;
	struct sensor_param sensor;
	struct isp_param isp;
	struct drc_param drc;
	struct fd_param fd;

	unsigned long p_region_index[2];
	};

	/**
	* struct fimc_is - fimc-is data structure
	* @pdev: pointer to FIMC-IS platform device
	* @pctrl: pointer to pinctrl structure for this device
	* @v4l2_dev: pointer to top the level v4l2_device
	* @alloc_ctx: videobuf2 memory allocator context
	* @lock: mutex serializing video device and the subdev operations
	* @slock: spinlock protecting this data structure and the hw registers
	* @clocks: FIMC-LITE gate clock
	* @regs: MCUCTL mmapped registers region
	* @pmu_regs: PMU ISP mmapped registers region
	* @irq_queue: interrupt handling waitqueue
	* @lpm: low power mode flag
	* @state: internal driver's state flags
	*/
	struct fimc_is {
	struct platform_device *pdev;
	struct pinctrl *pctrl;
	struct v4l2_device *v4l2_dev;

	struct fimc_is_firmware fw;
	struct fimc_is_memory memory;
	struct firmware *f_w;

	struct fimc_isp isp;
	struct fimc_is_sensor sensor[FIMC_IS_SENSORS_NUM];
	struct fimc_is_setfile setfile;

	struct vb2_alloc_ctx *alloc_ctx;
	struct v4l2_ctrl_handler ctrl_handler;

	struct mutex lock;
	spinlock_t slock;

	struct clk *clocks[ISS_CLKS_MAX];
	void __iomem *regs;
	void __iomem *pmu_regs;
	int irq;
	wait_queue_head_t irq_queue;
	u8 lpm;

	unsigned long state;
	unsigned int sensor_index;

	struct i2h_cmd i2h_cmd;
	struct h2i_cmd h2i_cmd;
	struct is_fd_result_header fd_header;

	struct chain_config config[IS_SC_MAX];
	unsigned config_index;

	struct is_region *is_p_region;
	dma_addr_t is_dma_p_region;
	struct is_share_region *is_shared_region;
	struct is_af_info af;

	struct dentry *debugfs_entry;
	};

	static inline struct fimc_is fimc_isp_to_is(struct fimc_isp isp)
	{
	return container_of(isp, struct fimc_is, isp);
	}

	static inline struct chain_config __get_curr_is_config(struct fimc_is is)
	{
	return &is->config[is->config_index];
	}

	static inline void fimc_is_mem_barrier(void)
	{
	mb();
	}

	static inline void fimc_is_set_param_bit(struct fimc_is *is, int num)
	{
	struct chain_config *cfg = &is->config[is->config_index];

	set_bit(num, &cfg->p_region_index[0]);
	}

	static inline void fimc_is_set_param_ctrl_cmd(struct fimc_is *is, int cmd)
	{
	is->is_p_region->parameter.isp.control.cmd = cmd;
	}

	static inline void mcuctl_write(u32 v, struct fimc_is *is, unsigned int offset)
	{
	writel(v, is->regs + offset);
	}

	static inline u32 mcuctl_read(struct fimc_is *is, unsigned int offset)
	{
	return readl(is->regs + offset);
	}

	static inline void pmuisp_write(u32 v, struct fimc_is *is, unsigned int offset)
	{
	writel(v, is->pmu_regs + offset);
	}

	static inline u32 pmuisp_read(struct fimc_is *is, unsigned int offset)
	{
	return readl(is->pmu_regs + offset);
	}

	int fimc_is_wait_event(struct fimc_is *is, unsigned long bit,
	unsigned int state, unsigned int timeout);
	int fimc_is_cpu_set_power(struct fimc_is *is, int on);
	int fimc_is_start_firmware(struct fimc_is *is);
	int fimc_is_hw_initialize(struct fimc_is *is);
	void fimc_is_log_dump(const char level, const void buf, size_t len);

	#endif /* FIMC_IS_H_ */