cregit-Linux how code gets into the kernel

Release 4.7 drivers/media/pci/solo6x10/solo6x10.h

/*
 * Copyright (C) 2010-2013 Bluecherry, LLC <http://www.bluecherrydvr.com>
 *
 * Original author:
 * Ben Collins <bcollins@ubuntu.com>
 *
 * Additional work by:
 * John Brooks <john.brooks@bluecherry.net>
 *
 * 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.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#ifndef __SOLO6X10_H

#define __SOLO6X10_H

#include <linux/pci.h>
#include <linux/i2c.h>
#include <linux/mutex.h>
#include <linux/list.h>
#include <linux/wait.h>
#include <linux/stringify.h>
#include <linux/io.h>
#include <linux/atomic.h>
#include <linux/slab.h>
#include <linux/videodev2.h>

#include <media/v4l2-dev.h>
#include <media/v4l2-device.h>
#include <media/v4l2-ctrls.h>
#include <media/videobuf2-v4l2.h>

#include "solo6x10-regs.h"

#ifndef PCI_VENDOR_ID_SOFTLOGIC

#define PCI_VENDOR_ID_SOFTLOGIC		0x9413

#define PCI_DEVICE_ID_SOLO6010		0x6010

#define PCI_DEVICE_ID_SOLO6110		0x6110
#endif

#ifndef PCI_VENDOR_ID_BLUECHERRY

#define PCI_VENDOR_ID_BLUECHERRY	0x1BB3
/* Neugent Softlogic 6010 based cards */

#define PCI_DEVICE_ID_NEUSOLO_4		0x4304

#define PCI_DEVICE_ID_NEUSOLO_9		0x4309

#define PCI_DEVICE_ID_NEUSOLO_16	0x4310
/* Bluecherry Softlogic 6010 based cards */

#define PCI_DEVICE_ID_BC_SOLO_4		0x4E04

#define PCI_DEVICE_ID_BC_SOLO_9		0x4E09

#define PCI_DEVICE_ID_BC_SOLO_16	0x4E10
/* Bluecherry Softlogic 6110 based cards */

#define PCI_DEVICE_ID_BC_6110_4		0x5304

#define PCI_DEVICE_ID_BC_6110_8		0x5308

#define PCI_DEVICE_ID_BC_6110_16	0x5310
#endif /* Bluecherry */

/* Used in pci_device_id, and solo_dev->type */

#define SOLO_DEV_6010			0

#define SOLO_DEV_6110			1


#define SOLO6X10_NAME			"solo6x10"


#define SOLO_MAX_CHANNELS		16


#define SOLO6X10_VERSION		"3.0.0"

/*
 * The SOLO6x10 actually has 8 i2c channels, but we only use 2.
 * 0 - Techwell chip(s)
 * 1 - SAA7128
 */

#define SOLO_I2C_ADAPTERS		2

#define SOLO_I2C_TW			0

#define SOLO_I2C_SAA			1

/* DMA Engine setup */

#define SOLO_NR_P2M			4

#define SOLO_NR_P2M_DESC		256

#define SOLO_P2M_DESC_SIZE		(SOLO_NR_P2M_DESC * 16)

/* Encoder standard modes */

#define SOLO_ENC_MODE_CIF		2

#define SOLO_ENC_MODE_HD1		1

#define SOLO_ENC_MODE_D1		9


#define SOLO_DEFAULT_QP			3


#define SOLO_CID_CUSTOM_BASE		(V4L2_CID_USER_BASE | 0xf000)

#define V4L2_CID_MOTION_TRACE		(SOLO_CID_CUSTOM_BASE+2)

#define V4L2_CID_OSD_TEXT		(SOLO_CID_CUSTOM_BASE+3)

/*
 * Motion thresholds are in a table of 64x64 samples, with
 * each sample representing 16x16 pixels of the source. In
 * effect, 44x30 samples are used for NTSC, and 44x36 for PAL.
 * The 5th sample on the 10th row is (10*64)+5 = 645.
 *
 * Internally it is stored as a 45x45 array (45*16 = 720, which is the
 * maximum PAL/NTSC width).
 */

#define SOLO_MOTION_SZ (45)


enum SOLO_I2C_STATE {
	
IIC_STATE_IDLE,
	
IIC_STATE_START,
	
IIC_STATE_READ,
	
IIC_STATE_WRITE,
	
IIC_STATE_STOP
};

/* Defined in Table 4-16, Page 68-69 of the 6010 Datasheet */

struct solo_p2m_desc {
	
u32	ctrl;
	
u32	cfg;
	
u32	dma_addr;
	
u32	ext_addr;
};


struct solo_p2m_dev {
	
struct mutex		mutex;
	
struct completion	completion;
	
int			desc_count;
	
int			desc_idx;
	
struct solo_p2m_desc	*descs;
	
int			error;
};


#define OSD_TEXT_MAX		44


struct solo_vb2_buf {
	
struct vb2_v4l2_buffer vb;
	
struct list_head list;
};


enum solo_enc_types {
	
SOLO_ENC_TYPE_STD,
	
SOLO_ENC_TYPE_EXT,
};


struct solo_enc_dev {
	
struct solo_dev	*solo_dev;
	/* V4L2 Items */
	
struct v4l2_ctrl_handler hdl;
	
struct v4l2_ctrl *md_thresholds;
	
struct video_device	*vfd;
	/* General accounting */
	
struct mutex		lock;
	
spinlock_t		motion_lock;
	
u8			ch;
	




u8			mode, gop, qp, interlaced, interval;
	
u8			bw_weight;
	
u16			motion_thresh;
	
bool			motion_global;
	
bool			motion_enabled;
	
u16			width;
	
u16			height;

	/* OSD buffers */
	
char			osd_text[OSD_TEXT_MAX + 1];
	u8			osd_buf[SOLO_EOSD_EXT_SIZE_MAX]
					__aligned(4);

	/* VOP stuff */
	
u8			vop[64];
	
int			vop_len;
	
u8			jpeg_header[1024];
	
int			jpeg_len;

	
u32			fmt;
	
enum solo_enc_types	type;
	
u32			sequence;
	
struct vb2_queue	vidq;
	
struct list_head	vidq_active;
	
void			*alloc_ctx;
	
int			desc_count;
	
int			desc_nelts;
	
struct solo_p2m_desc	*desc_items;
	
dma_addr_t		desc_dma;
	
spinlock_t		av_lock;
};

/* The SOLO6x10 PCI Device */

struct solo_dev {
	/* General stuff */
	
struct pci_dev		*pdev;
	
int			type;
	
unsigned int		time_sync;
	
unsigned int		usec_lsb;
	
unsigned int		clock_mhz;
	
u8 __iomem		*reg_base;
	
int			nr_chans;
	
int			nr_ext;
	
u32			irq_mask;
	
u32			motion_mask;
	
struct v4l2_device	v4l2_dev;

	/* tw28xx accounting */
	


u8			tw2865, tw2864, tw2815;
	
u8			tw28_cnt;

	/* i2c related items */
	
struct i2c_adapter	i2c_adap[SOLO_I2C_ADAPTERS];
	
enum SOLO_I2C_STATE	i2c_state;
	
struct mutex		i2c_mutex;
	
int			i2c_id;
	
wait_queue_head_t	i2c_wait;
	
struct i2c_msg		*i2c_msg;
	
unsigned int		i2c_msg_num;
	
unsigned int		i2c_msg_ptr;

	/* P2M DMA Engine */
	
struct solo_p2m_dev	p2m_dev[SOLO_NR_P2M];
	
atomic_t		p2m_count;
	
int			p2m_jiffies;
	
unsigned int		p2m_timeouts;

	/* V4L2 Display items */
	
struct video_device	*vfd;
	
unsigned int		erasing;
	
unsigned int		frame_blank;
	
u8			cur_disp_ch;
	
wait_queue_head_t	disp_thread_wait;
	
struct v4l2_ctrl_handler disp_hdl;

	/* V4L2 Encoder items */
	
struct solo_enc_dev	*v4l2_enc[SOLO_MAX_CHANNELS];
	
u16			enc_bw_remain;
	/* IDX into hw mp4 encoder */
	
u8			enc_idx;

	/* Current video settings */
	
u32			video_type;
	

u16			video_hsize, video_vsize;
	

u16			vout_hstart, vout_vstart;
	

u16			vin_hstart, vin_vstart;
	
u8			fps;

	/* JPEG Qp setting */
	
spinlock_t      jpeg_qp_lock;
	
u32		jpeg_qp[2];

	/* Audio components */
	
struct snd_card		*snd_card;
	
struct snd_pcm		*snd_pcm;
	
atomic_t		snd_users;
	
int			g723_hw_idx;

	/* sysfs stuffs */
	
struct device		dev;
	
int			sdram_size;
	
struct bin_attribute	sdram_attr;
	
unsigned int		sys_config;

	/* Ring thread */
	
struct task_struct	*ring_thread;
	
wait_queue_head_t	ring_thread_wait;

	/* VOP_HEADER handling */
	
void                    *vh_buf;
	
dma_addr_t		vh_dma;
	
int			vh_size;

	/* Buffer handling */
	
struct vb2_queue	vidq;
	
struct vb2_alloc_ctx	*alloc_ctx;
	
u32			sequence;
	
struct task_struct      *kthread;
	
struct mutex		lock;
	
spinlock_t		slock;
	
int			old_write;
	
struct list_head	vidq_active;
};


static inline u32 solo_reg_read(struct solo_dev *solo_dev, int reg) { return readl(solo_dev->reg_base + reg); }

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ben collinsben collins2392.00%133.33%
krzysztof halasakrzysztof halasa28.00%266.67%
Total25100.00%3100.00%


static inline void solo_reg_write(struct solo_dev *solo_dev, int reg, u32 data) { writel(data, solo_dev->reg_base + reg); }

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ben collinsben collins2896.55%150.00%
krzysztof halasakrzysztof halasa13.45%150.00%
Total29100.00%2100.00%


static inline void solo_irq_on(struct solo_dev *dev, u32 mask) { dev->irq_mask |= mask; solo_reg_write(dev, SOLO_IRQ_MASK, dev->irq_mask); }

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hans verkuilhans verkuil2268.75%133.33%
ben collinsben collins825.00%133.33%
krzysztof halasakrzysztof halasa26.25%133.33%
Total32100.00%3100.00%


static inline void solo_irq_off(struct solo_dev *dev, u32 mask) { dev->irq_mask &= ~mask; solo_reg_write(dev, SOLO_IRQ_MASK, dev->irq_mask); }

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hans verkuilhans verkuil2369.70%133.33%
ben collinsben collins824.24%133.33%
krzysztof halasakrzysztof halasa26.06%133.33%
Total33100.00%3100.00%

/* Init/exit routines for subsystems */ int solo_disp_init(struct solo_dev *solo_dev); void solo_disp_exit(struct solo_dev *solo_dev); int solo_gpio_init(struct solo_dev *solo_dev); void solo_gpio_exit(struct solo_dev *solo_dev); int solo_i2c_init(struct solo_dev *solo_dev); void solo_i2c_exit(struct solo_dev *solo_dev); int solo_p2m_init(struct solo_dev *solo_dev); void solo_p2m_exit(struct solo_dev *solo_dev); int solo_v4l2_init(struct solo_dev *solo_dev, unsigned nr); void solo_v4l2_exit(struct solo_dev *solo_dev); int solo_enc_init(struct solo_dev *solo_dev); void solo_enc_exit(struct solo_dev *solo_dev); int solo_enc_v4l2_init(struct solo_dev *solo_dev, unsigned nr); void solo_enc_v4l2_exit(struct solo_dev *solo_dev); int solo_g723_init(struct solo_dev *solo_dev); void solo_g723_exit(struct solo_dev *solo_dev); /* ISR's */ int solo_i2c_isr(struct solo_dev *solo_dev); void solo_p2m_isr(struct solo_dev *solo_dev, int id); void solo_p2m_error_isr(struct solo_dev *solo_dev); void solo_enc_v4l2_isr(struct solo_dev *solo_dev); void solo_g723_isr(struct solo_dev *solo_dev); void solo_motion_isr(struct solo_dev *solo_dev); void solo_video_in_isr(struct solo_dev *solo_dev); /* i2c read/write */ u8 solo_i2c_readbyte(struct solo_dev *solo_dev, int id, u8 addr, u8 off); void solo_i2c_writebyte(struct solo_dev *solo_dev, int id, u8 addr, u8 off, u8 data); /* P2M DMA */ int solo_p2m_dma_t(struct solo_dev *solo_dev, int wr, dma_addr_t dma_addr, u32 ext_addr, u32 size, int repeat, u32 ext_size); int solo_p2m_dma(struct solo_dev *solo_dev, int wr, void *sys_addr, u32 ext_addr, u32 size, int repeat, u32 ext_size); void solo_p2m_fill_desc(struct solo_p2m_desc *desc, int wr, dma_addr_t dma_addr, u32 ext_addr, u32 size, int repeat, u32 ext_size); int solo_p2m_dma_desc(struct solo_dev *solo_dev, struct solo_p2m_desc *desc, dma_addr_t desc_dma, int desc_cnt); /* Global s_std ioctl */ int solo_set_video_type(struct solo_dev *solo_dev, bool is_50hz); void solo_update_mode(struct solo_enc_dev *solo_enc); /* Set the threshold for motion detection */ int solo_set_motion_threshold(struct solo_dev *solo_dev, u8 ch, u16 val); int solo_set_motion_block(struct solo_dev *solo_dev, u8 ch, const u16 *thresholds); #define SOLO_DEF_MOT_THRESH 0x0300 /* Write text on OSD */ int solo_osd_print(struct solo_enc_dev *solo_enc); /* EEPROM commands */ unsigned int solo_eeprom_ewen(struct solo_dev *solo_dev, int w_en); __be16 solo_eeprom_read(struct solo_dev *solo_dev, int loc); int solo_eeprom_write(struct solo_dev *solo_dev, int loc, __be16 data); /* JPEG Qp functions */ void solo_s_jpeg_qp(struct solo_dev *solo_dev, unsigned int ch, unsigned int qp); int solo_g_jpeg_qp(struct solo_dev *solo_dev, unsigned int ch); #define CHK_FLAGS(v, flags) (((v) & (flags)) == (flags)) #endif /* __SOLO6X10_H */

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ben collinsben collins81561.42%310.34%
hans verkuilhans verkuil45334.14%1862.07%
krzysztof halasakrzysztof halasa513.84%310.34%
junghak sungjunghak sung20.15%26.90%
randy dunlaprandy dunlap20.15%13.45%
ismael lucenoismael luceno20.15%13.45%
wanlong gaowanlong gao20.15%13.45%
Total1327100.00%29100.00%
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