drivers/media/pci/cobalt/cobalt-driver.h - kernel/common - Git at Google

 /* SPDX-License-Identifier: GPL-2.0-only */
 /*
  *  cobalt driver internal defines and structures
  *
  *  Derived from cx18-driver.h
  *
  *  Copyright 2012-2015 Cisco Systems, Inc. and/or its affiliates.
  *  All rights reserved.
  */

 #ifndef COBALT_DRIVER_H
 #define COBALT_DRIVER_H

 #include <linux/module.h>
 #include <linux/pci.h>
 #include <linux/spinlock.h>
 #include <linux/i2c.h>
 #include <linux/list.h>
 #include <linux/workqueue.h>
 #include <linux/mutex.h>

 #include <media/v4l2-common.h>
 #include <media/v4l2-ioctl.h>
 #include <media/v4l2-device.h>
 #include <media/v4l2-fh.h>
 #include <media/videobuf2-v4l2.h>
 #include <media/videobuf2-dma-sg.h>

 #include "m00233_video_measure_memmap_package.h"
 #include "m00235_fdma_packer_memmap_package.h"
 #include "m00389_cvi_memmap_package.h"
 #include "m00460_evcnt_memmap_package.h"
 #include "m00473_freewheel_memmap_package.h"
 #include "m00479_clk_loss_detector_memmap_package.h"
 #include "m00514_syncgen_flow_evcnt_memmap_package.h"

 /* System device ID */
 #define PCI_DEVICE_ID_COBALT	0x2732

 /* Number of cobalt device nodes. */
 #define COBALT_NUM_INPUTS	4
 #define COBALT_NUM_NODES	6

 /* Number of cobalt device streams. */
 #define COBALT_NUM_STREAMS	12

 #define COBALT_HSMA_IN_NODE	4
 #define COBALT_HSMA_OUT_NODE	5

 /* Cobalt audio streams */
 #define COBALT_AUDIO_IN_STREAM	6
 #define COBALT_AUDIO_OUT_STREAM 11

 /* DMA stuff */
 #define DMA_CHANNELS_MAX	16

 /* i2c stuff */
 #define I2C_CLIENTS_MAX		16
 #define COBALT_NUM_ADAPTERS	5

 #define COBALT_CLK		50000000

 /* System status register */
 #define COBALT_SYSSTAT_DIP0_MSK			(1 << 0)
 #define COBALT_SYSSTAT_DIP1_MSK			(1 << 1)
 #define COBALT_SYSSTAT_HSMA_PRSNTN_MSK		(1 << 2)
 #define COBALT_SYSSTAT_FLASH_RDYBSYN_MSK	(1 << 3)
 #define COBALT_SYSSTAT_VI0_5V_MSK		(1 << 4)
 #define COBALT_SYSSTAT_VI0_INT1_MSK		(1 << 5)
 #define COBALT_SYSSTAT_VI0_INT2_MSK		(1 << 6)
 #define COBALT_SYSSTAT_VI0_LOST_DATA_MSK	(1 << 7)
 #define COBALT_SYSSTAT_VI1_5V_MSK		(1 << 8)
 #define COBALT_SYSSTAT_VI1_INT1_MSK		(1 << 9)
 #define COBALT_SYSSTAT_VI1_INT2_MSK		(1 << 10)
 #define COBALT_SYSSTAT_VI1_LOST_DATA_MSK	(1 << 11)
 #define COBALT_SYSSTAT_VI2_5V_MSK		(1 << 12)
 #define COBALT_SYSSTAT_VI2_INT1_MSK		(1 << 13)
 #define COBALT_SYSSTAT_VI2_INT2_MSK		(1 << 14)
 #define COBALT_SYSSTAT_VI2_LOST_DATA_MSK	(1 << 15)
 #define COBALT_SYSSTAT_VI3_5V_MSK		(1 << 16)
 #define COBALT_SYSSTAT_VI3_INT1_MSK		(1 << 17)
 #define COBALT_SYSSTAT_VI3_INT2_MSK		(1 << 18)
 #define COBALT_SYSSTAT_VI3_LOST_DATA_MSK	(1 << 19)
 #define COBALT_SYSSTAT_VIHSMA_5V_MSK		(1 << 20)
 #define COBALT_SYSSTAT_VIHSMA_INT1_MSK		(1 << 21)
 #define COBALT_SYSSTAT_VIHSMA_INT2_MSK		(1 << 22)
 #define COBALT_SYSSTAT_VIHSMA_LOST_DATA_MSK	(1 << 23)
 #define COBALT_SYSSTAT_VOHSMA_INT1_MSK		(1 << 24)
 #define COBALT_SYSSTAT_VOHSMA_PLL_LOCKED_MSK	(1 << 25)
 #define COBALT_SYSSTAT_VOHSMA_LOST_DATA_MSK	(1 << 26)
 #define COBALT_SYSSTAT_AUD_PLL_LOCKED_MSK	(1 << 28)
 #define COBALT_SYSSTAT_AUD_IN_LOST_DATA_MSK	(1 << 29)
 #define COBALT_SYSSTAT_AUD_OUT_LOST_DATA_MSK	(1 << 30)
 #define COBALT_SYSSTAT_PCIE_SMBCLK_MSK		(1 << 31)

 /* Cobalt memory map */
 #define COBALT_I2C_0_BASE			0x0
 #define COBALT_I2C_1_BASE			0x080
 #define COBALT_I2C_2_BASE			0x100
 #define COBALT_I2C_3_BASE			0x180
 #define COBALT_I2C_HSMA_BASE			0x200

 #define COBALT_SYS_CTRL_BASE			0x400
 #define COBALT_SYS_CTRL_HSMA_TX_ENABLE_BIT	1
 #define COBALT_SYS_CTRL_VIDEO_RX_RESETN_BIT(n)	(4 + 4 * (n))
 #define COBALT_SYS_CTRL_NRESET_TO_HDMI_BIT(n)	(5 + 4 * (n))
 #define COBALT_SYS_CTRL_HPD_TO_CONNECTOR_BIT(n)	(6 + 4 * (n))
 #define COBALT_SYS_CTRL_AUDIO_IPP_RESETN_BIT(n)	(7 + 4 * (n))
 #define COBALT_SYS_CTRL_PWRDN0_TO_HSMA_TX_BIT	24
 #define COBALT_SYS_CTRL_VIDEO_TX_RESETN_BIT	25
 #define COBALT_SYS_CTRL_AUDIO_OPP_RESETN_BIT	27

 #define COBALT_SYS_STAT_BASE			0x500
 #define COBALT_SYS_STAT_MASK			(COBALT_SYS_STAT_BASE + 0x08)
 #define COBALT_SYS_STAT_EDGE			(COBALT_SYS_STAT_BASE + 0x0c)

 #define COBALT_HDL_INFO_BASE			0x4800
 #define COBALT_HDL_INFO_SIZE			0x200

 #define COBALT_VID_BASE				0x10000
 #define COBALT_VID_SIZE				0x1000

 #define COBALT_CVI(cobalt, c) \
 	(cobalt->bar1 + COBALT_VID_BASE + (c) * COBALT_VID_SIZE)
 #define COBALT_CVI_VMR(cobalt, c) \
 	(cobalt->bar1 + COBALT_VID_BASE + (c) * COBALT_VID_SIZE + 0x100)
 #define COBALT_CVI_EVCNT(cobalt, c) \
 	(cobalt->bar1 + COBALT_VID_BASE + (c) * COBALT_VID_SIZE + 0x200)
 #define COBALT_CVI_FREEWHEEL(cobalt, c) \
 	(cobalt->bar1 + COBALT_VID_BASE + (c) * COBALT_VID_SIZE + 0x300)
 #define COBALT_CVI_CLK_LOSS(cobalt, c) \
 	(cobalt->bar1 + COBALT_VID_BASE + (c) * COBALT_VID_SIZE + 0x400)
 #define COBALT_CVI_PACKER(cobalt, c) \
 	(cobalt->bar1 + COBALT_VID_BASE + (c) * COBALT_VID_SIZE + 0x500)

 #define COBALT_TX_BASE(cobalt) (cobalt->bar1 + COBALT_VID_BASE + 0x5000)

 #define DMA_INTERRUPT_STATUS_REG		0x08

 #define COBALT_HDL_SEARCH_STR			"** HDL version info **"

 /* Cobalt CPU bus interface */
 #define COBALT_BUS_BAR1_BASE			0x600
 #define COBALT_BUS_SRAM_BASE			0x0
 #define COBALT_BUS_CPLD_BASE			0x00600000
 #define COBALT_BUS_FLASH_BASE			0x08000000

 /* FDMA to PCIe packing */
 #define COBALT_BYTES_PER_PIXEL_YUYV		2
 #define COBALT_BYTES_PER_PIXEL_RGB24		3
 #define COBALT_BYTES_PER_PIXEL_RGB32		4

 /* debugging */
 extern int cobalt_debug;
 extern int cobalt_ignore_err;

 #define cobalt_err(fmt, arg...)  v4l2_err(&cobalt->v4l2_dev, fmt, ## arg)
 #define cobalt_warn(fmt, arg...) v4l2_warn(&cobalt->v4l2_dev, fmt, ## arg)
 #define cobalt_info(fmt, arg...) v4l2_info(&cobalt->v4l2_dev, fmt, ## arg)
 #define cobalt_dbg(level, fmt, arg...) \
 	v4l2_dbg(level, cobalt_debug, &cobalt->v4l2_dev, fmt, ## arg)

 struct cobalt;
 struct cobalt_i2c_regs;

 /* Per I2C bus private algo callback data */
 struct cobalt_i2c_data {
 	struct cobalt *cobalt;
 	struct cobalt_i2c_regs __iomem *regs;
 };

 struct pci_consistent_buffer {
 	void *virt;
 	dma_addr_t bus;
 	size_t bytes;
 };

 struct sg_dma_desc_info {
 	void *virt;
 	dma_addr_t bus;
 	unsigned size;
 	void *last_desc_virt;
 	struct device *dev;
 };

 #define COBALT_MAX_WIDTH			1920
 #define COBALT_MAX_HEIGHT			1200
 #define COBALT_MAX_BPP				3
 #define COBALT_MAX_FRAMESZ \
 	(COBALT_MAX_WIDTH * COBALT_MAX_HEIGHT * COBALT_MAX_BPP)

 #define NR_BUFS					VIDEO_MAX_FRAME

 #define COBALT_STREAM_FL_DMA_IRQ		0
 #define COBALT_STREAM_FL_ADV_IRQ		1

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

 static inline
 struct cobalt_buffer *to_cobalt_buffer(struct vb2_v4l2_buffer *vb2)
 {
 	return container_of(vb2, struct cobalt_buffer, vb);
 }

 struct cobalt_stream {
 	struct video_device vdev;
 	struct vb2_queue q;
 	struct list_head bufs;
 	struct i2c_adapter *i2c_adap;
 	struct v4l2_subdev *sd;
 	struct mutex lock;
 	spinlock_t irqlock;
 	struct v4l2_dv_timings timings;
 	u32 input;
 	u32 pad_source;
 	u32 width, height, bpp;
 	u32 stride;
 	u32 pixfmt;
 	u32 sequence;
 	u32 colorspace;
 	u32 xfer_func;
 	u32 ycbcr_enc;
 	u32 quantization;

 	u8 dma_channel;
 	int video_channel;
 	unsigned dma_fifo_mask;
 	unsigned adv_irq_mask;
 	struct sg_dma_desc_info dma_desc_info[NR_BUFS];
 	unsigned long flags;
 	bool unstable_frame;
 	bool enable_cvi;
 	bool enable_freewheel;
 	unsigned skip_first_frames;
 	bool is_output;
 	bool is_audio;
 	bool is_dummy;

 	struct cobalt *cobalt;
 	struct snd_cobalt_card *alsa;
 };

 struct snd_cobalt_card;

 /* Struct to hold info about cobalt cards */
 struct cobalt {
 	int instance;
 	struct pci_dev *pci_dev;
 	struct v4l2_device v4l2_dev;

 	void __iomem *bar0, *bar1;

 	u8 card_rev;
 	u16 device_id;

 	/* device nodes */
 	struct cobalt_stream streams[DMA_CHANNELS_MAX];
 	struct i2c_adapter i2c_adap[COBALT_NUM_ADAPTERS];
 	struct cobalt_i2c_data i2c_data[COBALT_NUM_ADAPTERS];
 	bool have_hsma_rx;
 	bool have_hsma_tx;

 	/* irq */
 	struct workqueue_struct *irq_work_queues;
 	struct work_struct irq_work_queue;              /* work entry */
 	/* irq counters */
 	u32 irq_adv1;
 	u32 irq_adv2;
 	u32 irq_advout;
 	u32 irq_dma_tot;
 	u32 irq_dma[COBALT_NUM_STREAMS];
 	u32 irq_none;
 	u32 irq_full_fifo;

 	/* omnitek dma */
 	int dma_channels;
 	int first_fifo_channel;
 	bool pci_32_bit;

 	char hdl_info[COBALT_HDL_INFO_SIZE];

 	/* NOR flash */
 	struct mtd_info *mtd;
 };

 static inline struct cobalt *to_cobalt(struct v4l2_device *v4l2_dev)
 {
 	return container_of(v4l2_dev, struct cobalt, v4l2_dev);
 }

 static inline void cobalt_write_bar0(struct cobalt *cobalt, u32 reg, u32 val)
 {
 	iowrite32(val, cobalt->bar0 + reg);
 }

 static inline u32 cobalt_read_bar0(struct cobalt *cobalt, u32 reg)
 {
 	return ioread32(cobalt->bar0 + reg);
 }

 static inline void cobalt_write_bar1(struct cobalt *cobalt, u32 reg, u32 val)
 {
 	iowrite32(val, cobalt->bar1 + reg);
 }

 static inline u32 cobalt_read_bar1(struct cobalt *cobalt, u32 reg)
 {
 	return ioread32(cobalt->bar1 + reg);
 }

 static inline u32 cobalt_g_sysctrl(struct cobalt *cobalt)
 {
 	return cobalt_read_bar1(cobalt, COBALT_SYS_CTRL_BASE);
 }

 static inline void cobalt_s_bit_sysctrl(struct cobalt *cobalt,
 					int bit, int val)
 {
 	u32 ctrl = cobalt_read_bar1(cobalt, COBALT_SYS_CTRL_BASE);

 	cobalt_write_bar1(cobalt, COBALT_SYS_CTRL_BASE,
 			(ctrl & ~(1UL << bit)) | (val << bit));
 }

 static inline u32 cobalt_g_sysstat(struct cobalt *cobalt)
 {
 	return cobalt_read_bar1(cobalt, COBALT_SYS_STAT_BASE);
 }

 #define ADRS_REG (bar1 + COBALT_BUS_BAR1_BASE + 0)
 #define LOWER_DATA (bar1 + COBALT_BUS_BAR1_BASE + 4)
 #define UPPER_DATA (bar1 + COBALT_BUS_BAR1_BASE + 6)

 static inline u32 cobalt_bus_read32(void __iomem *bar1, u32 bus_adrs)
 {
 	iowrite32(bus_adrs, ADRS_REG);
 	return ioread32(LOWER_DATA);
 }

 static inline void cobalt_bus_write16(void __iomem *bar1,
 				      u32 bus_adrs, u16 data)
 {
 	iowrite32(bus_adrs, ADRS_REG);
 	if (bus_adrs & 2)
 		iowrite16(data, UPPER_DATA);
 	else
 		iowrite16(data, LOWER_DATA);
 }

 static inline void cobalt_bus_write32(void __iomem *bar1,
 				      u32 bus_adrs, u16 data)
 {
 	iowrite32(bus_adrs, ADRS_REG);
 	if (bus_adrs & 2)
 		iowrite32(data, UPPER_DATA);
 	else
 		iowrite32(data, LOWER_DATA);
 }

 /*==============Prototypes==================*/

 void cobalt_pcie_status_show(struct cobalt *cobalt);

 #endif
	/* SPDX-License-Identifier: GPL-2.0-only */
	/*
	* cobalt driver internal defines and structures
	*
	* Derived from cx18-driver.h
	*
	* Copyright 2012-2015 Cisco Systems, Inc. and/or its affiliates.
	* All rights reserved.
	*/

	#ifndef COBALT_DRIVER_H
	#define COBALT_DRIVER_H

	#include <linux/module.h>
	#include <linux/pci.h>
	#include <linux/spinlock.h>
	#include <linux/i2c.h>
	#include <linux/list.h>
	#include <linux/workqueue.h>
	#include <linux/mutex.h>

	#include <media/v4l2-common.h>
	#include <media/v4l2-ioctl.h>
	#include <media/v4l2-device.h>
	#include <media/v4l2-fh.h>
	#include <media/videobuf2-v4l2.h>
	#include <media/videobuf2-dma-sg.h>

	#include "m00233_video_measure_memmap_package.h"
	#include "m00235_fdma_packer_memmap_package.h"
	#include "m00389_cvi_memmap_package.h"
	#include "m00460_evcnt_memmap_package.h"
	#include "m00473_freewheel_memmap_package.h"
	#include "m00479_clk_loss_detector_memmap_package.h"
	#include "m00514_syncgen_flow_evcnt_memmap_package.h"

	/* System device ID */
	#define PCI_DEVICE_ID_COBALT 0x2732

	/* Number of cobalt device nodes. */
	#define COBALT_NUM_INPUTS 4
	#define COBALT_NUM_NODES 6

	/* Number of cobalt device streams. */
	#define COBALT_NUM_STREAMS 12

	#define COBALT_HSMA_IN_NODE 4
	#define COBALT_HSMA_OUT_NODE 5

	/* Cobalt audio streams */
	#define COBALT_AUDIO_IN_STREAM 6
	#define COBALT_AUDIO_OUT_STREAM 11

	/* DMA stuff */
	#define DMA_CHANNELS_MAX 16

	/* i2c stuff */
	#define I2C_CLIENTS_MAX 16
	#define COBALT_NUM_ADAPTERS 5

	#define COBALT_CLK 50000000

	/* System status register */
	#define COBALT_SYSSTAT_DIP0_MSK (1 << 0)
	#define COBALT_SYSSTAT_DIP1_MSK (1 << 1)
	#define COBALT_SYSSTAT_HSMA_PRSNTN_MSK (1 << 2)
	#define COBALT_SYSSTAT_FLASH_RDYBSYN_MSK (1 << 3)
	#define COBALT_SYSSTAT_VI0_5V_MSK (1 << 4)
	#define COBALT_SYSSTAT_VI0_INT1_MSK (1 << 5)
	#define COBALT_SYSSTAT_VI0_INT2_MSK (1 << 6)
	#define COBALT_SYSSTAT_VI0_LOST_DATA_MSK (1 << 7)
	#define COBALT_SYSSTAT_VI1_5V_MSK (1 << 8)
	#define COBALT_SYSSTAT_VI1_INT1_MSK (1 << 9)
	#define COBALT_SYSSTAT_VI1_INT2_MSK (1 << 10)
	#define COBALT_SYSSTAT_VI1_LOST_DATA_MSK (1 << 11)
	#define COBALT_SYSSTAT_VI2_5V_MSK (1 << 12)
	#define COBALT_SYSSTAT_VI2_INT1_MSK (1 << 13)
	#define COBALT_SYSSTAT_VI2_INT2_MSK (1 << 14)
	#define COBALT_SYSSTAT_VI2_LOST_DATA_MSK (1 << 15)
	#define COBALT_SYSSTAT_VI3_5V_MSK (1 << 16)
	#define COBALT_SYSSTAT_VI3_INT1_MSK (1 << 17)
	#define COBALT_SYSSTAT_VI3_INT2_MSK (1 << 18)
	#define COBALT_SYSSTAT_VI3_LOST_DATA_MSK (1 << 19)
	#define COBALT_SYSSTAT_VIHSMA_5V_MSK (1 << 20)
	#define COBALT_SYSSTAT_VIHSMA_INT1_MSK (1 << 21)
	#define COBALT_SYSSTAT_VIHSMA_INT2_MSK (1 << 22)
	#define COBALT_SYSSTAT_VIHSMA_LOST_DATA_MSK (1 << 23)
	#define COBALT_SYSSTAT_VOHSMA_INT1_MSK (1 << 24)
	#define COBALT_SYSSTAT_VOHSMA_PLL_LOCKED_MSK (1 << 25)
	#define COBALT_SYSSTAT_VOHSMA_LOST_DATA_MSK (1 << 26)
	#define COBALT_SYSSTAT_AUD_PLL_LOCKED_MSK (1 << 28)
	#define COBALT_SYSSTAT_AUD_IN_LOST_DATA_MSK (1 << 29)
	#define COBALT_SYSSTAT_AUD_OUT_LOST_DATA_MSK (1 << 30)
	#define COBALT_SYSSTAT_PCIE_SMBCLK_MSK (1 << 31)

	/* Cobalt memory map */
	#define COBALT_I2C_0_BASE 0x0
	#define COBALT_I2C_1_BASE 0x080
	#define COBALT_I2C_2_BASE 0x100
	#define COBALT_I2C_3_BASE 0x180
	#define COBALT_I2C_HSMA_BASE 0x200

	#define COBALT_SYS_CTRL_BASE 0x400
	#define COBALT_SYS_CTRL_HSMA_TX_ENABLE_BIT 1
	#define COBALT_SYS_CTRL_VIDEO_RX_RESETN_BIT(n) (4 + 4 * (n))
	#define COBALT_SYS_CTRL_NRESET_TO_HDMI_BIT(n) (5 + 4 * (n))
	#define COBALT_SYS_CTRL_HPD_TO_CONNECTOR_BIT(n) (6 + 4 * (n))
	#define COBALT_SYS_CTRL_AUDIO_IPP_RESETN_BIT(n) (7 + 4 * (n))
	#define COBALT_SYS_CTRL_PWRDN0_TO_HSMA_TX_BIT 24
	#define COBALT_SYS_CTRL_VIDEO_TX_RESETN_BIT 25
	#define COBALT_SYS_CTRL_AUDIO_OPP_RESETN_BIT 27

	#define COBALT_SYS_STAT_BASE 0x500
	#define COBALT_SYS_STAT_MASK (COBALT_SYS_STAT_BASE + 0x08)
	#define COBALT_SYS_STAT_EDGE (COBALT_SYS_STAT_BASE + 0x0c)

	#define COBALT_HDL_INFO_BASE 0x4800
	#define COBALT_HDL_INFO_SIZE 0x200

	#define COBALT_VID_BASE 0x10000
	#define COBALT_VID_SIZE 0x1000

	#define COBALT_CVI(cobalt, c) \
	(cobalt->bar1 + COBALT_VID_BASE + (c) * COBALT_VID_SIZE)
	#define COBALT_CVI_VMR(cobalt, c) \
	(cobalt->bar1 + COBALT_VID_BASE + (c) * COBALT_VID_SIZE + 0x100)
	#define COBALT_CVI_EVCNT(cobalt, c) \
	(cobalt->bar1 + COBALT_VID_BASE + (c) * COBALT_VID_SIZE + 0x200)
	#define COBALT_CVI_FREEWHEEL(cobalt, c) \
	(cobalt->bar1 + COBALT_VID_BASE + (c) * COBALT_VID_SIZE + 0x300)
	#define COBALT_CVI_CLK_LOSS(cobalt, c) \
	(cobalt->bar1 + COBALT_VID_BASE + (c) * COBALT_VID_SIZE + 0x400)
	#define COBALT_CVI_PACKER(cobalt, c) \
	(cobalt->bar1 + COBALT_VID_BASE + (c) * COBALT_VID_SIZE + 0x500)

	#define COBALT_TX_BASE(cobalt) (cobalt->bar1 + COBALT_VID_BASE + 0x5000)

	#define DMA_INTERRUPT_STATUS_REG 0x08

	#define COBALT_HDL_SEARCH_STR " HDL version info "

	/* Cobalt CPU bus interface */
	#define COBALT_BUS_BAR1_BASE 0x600
	#define COBALT_BUS_SRAM_BASE 0x0
	#define COBALT_BUS_CPLD_BASE 0x00600000
	#define COBALT_BUS_FLASH_BASE 0x08000000

	/* FDMA to PCIe packing */
	#define COBALT_BYTES_PER_PIXEL_YUYV 2
	#define COBALT_BYTES_PER_PIXEL_RGB24 3
	#define COBALT_BYTES_PER_PIXEL_RGB32 4

	/* debugging */
	extern int cobalt_debug;
	extern int cobalt_ignore_err;

	#define cobalt_err(fmt, arg...) v4l2_err(&cobalt->v4l2_dev, fmt, ## arg)
	#define cobalt_warn(fmt, arg...) v4l2_warn(&cobalt->v4l2_dev, fmt, ## arg)
	#define cobalt_info(fmt, arg...) v4l2_info(&cobalt->v4l2_dev, fmt, ## arg)
	#define cobalt_dbg(level, fmt, arg...) \
	v4l2_dbg(level, cobalt_debug, &cobalt->v4l2_dev, fmt, ## arg)

	struct cobalt;
	struct cobalt_i2c_regs;

	/* Per I2C bus private algo callback data */
	struct cobalt_i2c_data {
	struct cobalt *cobalt;
	struct cobalt_i2c_regs __iomem *regs;
	};

	struct pci_consistent_buffer {
	void *virt;
	dma_addr_t bus;
	size_t bytes;
	};

	struct sg_dma_desc_info {
	void *virt;
	dma_addr_t bus;
	unsigned size;
	void *last_desc_virt;
	struct device *dev;
	};

	#define COBALT_MAX_WIDTH 1920
	#define COBALT_MAX_HEIGHT 1200
	#define COBALT_MAX_BPP 3
	#define COBALT_MAX_FRAMESZ \
	(COBALT_MAX_WIDTH * COBALT_MAX_HEIGHT * COBALT_MAX_BPP)

	#define NR_BUFS VIDEO_MAX_FRAME

	#define COBALT_STREAM_FL_DMA_IRQ 0
	#define COBALT_STREAM_FL_ADV_IRQ 1

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

	static inline
	struct cobalt_buffer to_cobalt_buffer(struct vb2_v4l2_buffer vb2)
	{
	return container_of(vb2, struct cobalt_buffer, vb);
	}

	struct cobalt_stream {
	struct video_device vdev;
	struct vb2_queue q;
	struct list_head bufs;
	struct i2c_adapter *i2c_adap;
	struct v4l2_subdev *sd;
	struct mutex lock;
	spinlock_t irqlock;
	struct v4l2_dv_timings timings;
	u32 input;
	u32 pad_source;
	u32 width, height, bpp;
	u32 stride;
	u32 pixfmt;
	u32 sequence;
	u32 colorspace;
	u32 xfer_func;
	u32 ycbcr_enc;
	u32 quantization;

	u8 dma_channel;
	int video_channel;
	unsigned dma_fifo_mask;
	unsigned adv_irq_mask;
	struct sg_dma_desc_info dma_desc_info[NR_BUFS];
	unsigned long flags;
	bool unstable_frame;
	bool enable_cvi;
	bool enable_freewheel;
	unsigned skip_first_frames;
	bool is_output;
	bool is_audio;
	bool is_dummy;

	struct cobalt *cobalt;
	struct snd_cobalt_card *alsa;
	};

	struct snd_cobalt_card;

	/* Struct to hold info about cobalt cards */
	struct cobalt {
	int instance;
	struct pci_dev *pci_dev;
	struct v4l2_device v4l2_dev;

	void __iomem bar0, bar1;

	u8 card_rev;
	u16 device_id;

	/* device nodes */
	struct cobalt_stream streams[DMA_CHANNELS_MAX];
	struct i2c_adapter i2c_adap[COBALT_NUM_ADAPTERS];
	struct cobalt_i2c_data i2c_data[COBALT_NUM_ADAPTERS];
	bool have_hsma_rx;
	bool have_hsma_tx;

	/* irq */
	struct workqueue_struct *irq_work_queues;
	struct work_struct irq_work_queue; /* work entry */
	/* irq counters */
	u32 irq_adv1;
	u32 irq_adv2;
	u32 irq_advout;
	u32 irq_dma_tot;
	u32 irq_dma[COBALT_NUM_STREAMS];
	u32 irq_none;
	u32 irq_full_fifo;

	/* omnitek dma */
	int dma_channels;
	int first_fifo_channel;
	bool pci_32_bit;

	char hdl_info[COBALT_HDL_INFO_SIZE];

	/* NOR flash */
	struct mtd_info *mtd;
	};

	static inline struct cobalt to_cobalt(struct v4l2_device v4l2_dev)
	{
	return container_of(v4l2_dev, struct cobalt, v4l2_dev);
	}

	static inline void cobalt_write_bar0(struct cobalt *cobalt, u32 reg, u32 val)
	{
	iowrite32(val, cobalt->bar0 + reg);
	}

	static inline u32 cobalt_read_bar0(struct cobalt *cobalt, u32 reg)
	{
	return ioread32(cobalt->bar0 + reg);
	}

	static inline void cobalt_write_bar1(struct cobalt *cobalt, u32 reg, u32 val)
	{
	iowrite32(val, cobalt->bar1 + reg);
	}

	static inline u32 cobalt_read_bar1(struct cobalt *cobalt, u32 reg)
	{
	return ioread32(cobalt->bar1 + reg);
	}

	static inline u32 cobalt_g_sysctrl(struct cobalt *cobalt)
	{
	return cobalt_read_bar1(cobalt, COBALT_SYS_CTRL_BASE);
	}

	static inline void cobalt_s_bit_sysctrl(struct cobalt *cobalt,
	int bit, int val)
	{
	u32 ctrl = cobalt_read_bar1(cobalt, COBALT_SYS_CTRL_BASE);

	cobalt_write_bar1(cobalt, COBALT_SYS_CTRL_BASE,
	(ctrl & ~(1UL << bit)) \| (val << bit));
	}

	static inline u32 cobalt_g_sysstat(struct cobalt *cobalt)
	{
	return cobalt_read_bar1(cobalt, COBALT_SYS_STAT_BASE);
	}

	#define ADRS_REG (bar1 + COBALT_BUS_BAR1_BASE + 0)
	#define LOWER_DATA (bar1 + COBALT_BUS_BAR1_BASE + 4)
	#define UPPER_DATA (bar1 + COBALT_BUS_BAR1_BASE + 6)

	static inline u32 cobalt_bus_read32(void __iomem *bar1, u32 bus_adrs)
	{
	iowrite32(bus_adrs, ADRS_REG);
	return ioread32(LOWER_DATA);
	}

	static inline void cobalt_bus_write16(void __iomem *bar1,
	u32 bus_adrs, u16 data)
	{
	iowrite32(bus_adrs, ADRS_REG);
	if (bus_adrs & 2)
	iowrite16(data, UPPER_DATA);
	else
	iowrite16(data, LOWER_DATA);
	}

	static inline void cobalt_bus_write32(void __iomem *bar1,
	u32 bus_adrs, u16 data)
	{
	iowrite32(bus_adrs, ADRS_REG);
	if (bus_adrs & 2)
	iowrite32(data, UPPER_DATA);
	else
	iowrite32(data, LOWER_DATA);
	}

	/==============Prototypes==================/

	void cobalt_pcie_status_show(struct cobalt *cobalt);

	#endif