drivers/media/video/saa7164/saa7164.h - kernel/prism - Git at Google

 /*
  *  Driver for the NXP SAA7164 PCIe bridge
  *
  *  Copyright (c) 2009 Steven Toth <stoth@kernellabs.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.
  *
  *  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.
  *
  *  You should have received a copy of the GNU General Public License
  *  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */

 /*
 	Driver architecture
 	*******************

 	saa7164_core.c/buffer.c/cards.c/i2c.c/dvb.c
 		|	: Standard Linux driver framework for creating
 		|	: exposing and managing interfaces to the rest
 		|	: of the kernel or userland. Also uses _fw.c to load
 		|	: firmware direct into the PCIe bus, bypassing layers.
 		V
 	saa7164_api..()	: Translate kernel specific functions/features
 		|	: into command buffers.
 		V
 	saa7164_cmd..()	: Manages the flow of command packets on/off,
 		|	: the bus. Deal with bus errors, timeouts etc.
 		V
 	saa7164_bus..() : Manage a read/write memory ring buffer in the
 		|	: PCIe Address space.
 		|
 		|		saa7164_fw...()	: Load any frimware
 		|			|	: direct into the device
 		V			V
 	<- ----------------- PCIe address space -------------------- ->
 */

 #include <linux/pci.h>
 #include <linux/i2c.h>
 #include <linux/i2c-algo-bit.h>
 #include <linux/kdev_t.h>

 #include <media/tuner.h>
 #include <media/tveeprom.h>
 #include <media/videobuf-dma-sg.h>
 #include <media/videobuf-dvb.h>

 #include "saa7164-reg.h"
 #include "saa7164-types.h"

 #include <linux/version.h>
 #include <linux/mutex.h>

 #define SAA7164_MAXBOARDS 8

 #define UNSET (-1U)
 #define SAA7164_BOARD_NOAUTO			UNSET
 #define SAA7164_BOARD_UNKNOWN			0
 #define SAA7164_BOARD_UNKNOWN_REV2		1
 #define SAA7164_BOARD_UNKNOWN_REV3		2
 #define SAA7164_BOARD_HAUPPAUGE_HVR2250		3
 #define SAA7164_BOARD_HAUPPAUGE_HVR2200		4
 #define SAA7164_BOARD_HAUPPAUGE_HVR2200_2	5
 #define SAA7164_BOARD_HAUPPAUGE_HVR2200_3	6
 #define SAA7164_BOARD_HAUPPAUGE_HVR2250_2	7
 #define SAA7164_BOARD_HAUPPAUGE_HVR2250_3	8

 #define SAA7164_MAX_UNITS		8
 #define SAA7164_TS_NUMBER_OF_LINES	312
 #define SAA7164_PT_ENTRIES		16 /* (312 * 188) / 4096 */

 #define DBGLVL_FW    4
 #define DBGLVL_DVB   8
 #define DBGLVL_I2C  16
 #define DBGLVL_API  32
 #define DBGLVL_CMD  64
 #define DBGLVL_BUS 128
 #define DBGLVL_IRQ 256
 #define DBGLVL_BUF 512

 enum port_t {
 	SAA7164_MPEG_UNDEFINED = 0,
 	SAA7164_MPEG_DVB,
 };

 enum saa7164_i2c_bus_nr {
 	SAA7164_I2C_BUS_0 = 0,
 	SAA7164_I2C_BUS_1,
 	SAA7164_I2C_BUS_2,
 };

 enum saa7164_buffer_flags {
 	SAA7164_BUFFER_UNDEFINED = 0,
 	SAA7164_BUFFER_FREE,
 	SAA7164_BUFFER_BUSY,
 	SAA7164_BUFFER_FULL
 };

 enum saa7164_unit_type {
 	SAA7164_UNIT_UNDEFINED = 0,
 	SAA7164_UNIT_DIGITAL_DEMODULATOR,
 	SAA7164_UNIT_ANALOG_DEMODULATOR,
 	SAA7164_UNIT_TUNER,
 	SAA7164_UNIT_EEPROM,
 	SAA7164_UNIT_ZILOG_IRBLASTER,
 	SAA7164_UNIT_ENCODER,
 };

 /* The PCIe bridge doesn't grant direct access to i2c.
  * Instead, you address i2c devices using a uniqely
  * allocated 'unitid' value via a messaging API. This
  * is a problem. The kernel and existing demod/tuner
  * drivers expect to talk 'i2c', so we have to maintain
  * a translation layer, and a series of functions to
  * convert i2c bus + device address into a unit id.
  */
 struct saa7164_unit {
 	enum saa7164_unit_type type;
 	u8	id;
 	char	*name;
 	enum saa7164_i2c_bus_nr i2c_bus_nr;
 	u8	i2c_bus_addr;
 	u8	i2c_reg_len;
 };

 struct saa7164_board {
 	char	*name;
 	enum port_t porta, portb;
 	enum {
 		SAA7164_CHIP_UNDEFINED = 0,
 		SAA7164_CHIP_REV2,
 		SAA7164_CHIP_REV3,
 	} chiprev;
 	struct	saa7164_unit unit[SAA7164_MAX_UNITS];
 };

 struct saa7164_subid {
 	u16     subvendor;
 	u16     subdevice;
 	u32     card;
 };

 struct saa7164_fw_status {

 	/* RISC Core details */
 	u32	status;
 	u32	mode;
 	u32	spec;
 	u32	inst;
 	u32	cpuload;
 	u32	remainheap;

 	/* Firmware version */
 	u32	version;
 	u32	major;
 	u32	sub;
 	u32	rel;
 	u32	buildnr;
 };

 struct saa7164_dvb {
 	struct mutex lock;
 	struct dvb_adapter adapter;
 	struct dvb_frontend *frontend;
 	struct dvb_demux demux;
 	struct dmxdev dmxdev;
 	struct dmx_frontend fe_hw;
 	struct dmx_frontend fe_mem;
 	struct dvb_net net;
 	int feeding;
 };

 struct saa7164_i2c {
 	struct saa7164_dev		*dev;

 	enum saa7164_i2c_bus_nr		nr;

 	/* I2C I/O */
 	struct i2c_adapter		i2c_adap;
 	struct i2c_algo_bit_data	i2c_algo;
 	struct i2c_client		i2c_client;
 	u32				i2c_rc;
 };

 struct saa7164_tsport;

 struct saa7164_buffer {
 	struct list_head list;

 	u32 nr;

 	struct saa7164_tsport *port;

 	/* Hardware Specific */
 	/* PCI Memory allocations */
 	enum saa7164_buffer_flags flags; /* Free, Busy, Full */

 	/* A block of page align PCI memory */
 	u32 pci_size;	/* PCI allocation size in bytes */
 	u64 *cpu;	/* Virtual address */
 	dma_addr_t dma;	/* Physical address */

 	/* A page table that splits the block into a number of entries */
 	u32 pt_size;		/* PCI allocation size in bytes */
 	u64 *pt_cpu;		/* Virtual address */
 	dma_addr_t pt_dma;	/* Physical address */
 };

 struct saa7164_tsport {

 	struct saa7164_dev *dev;
 	int nr;
 	enum port_t type;

 	struct saa7164_dvb dvb;

 	/* HW related stream parameters */
 	tmHWStreamParameters_t hw_streamingparams;

 	/* DMA configuration values, is seeded during initialization */
 	tmComResDMATermDescrHeader_t hwcfg;

 	/* hardware specific registers */
 	u32 bufcounter;
 	u32 pitch;
 	u32 bufsize;
 	u32 bufoffset;
 	u32 bufptr32l;
 	u32 bufptr32h;
 	u64 bufptr64;

 	u32 numpte;	/* Number of entries in array, only valid in head */
 	struct mutex dmaqueue_lock;
 	struct mutex dummy_dmaqueue_lock;
 	struct saa7164_buffer dmaqueue;
 	struct saa7164_buffer dummy_dmaqueue;

 };

 struct saa7164_dev {
 	struct list_head	devlist;
 	atomic_t		refcount;

 	/* pci stuff */
 	struct pci_dev	*pci;
 	unsigned char	pci_rev, pci_lat;
 	int		pci_bus, pci_slot;
 	u32		__iomem *lmmio;
 	u8		__iomem *bmmio;
 	u32		__iomem *lmmio2;
 	u8		__iomem *bmmio2;
 	int		pci_irqmask;

 	/* board details */
 	int	nr;
 	int	hwrevision;
 	u32	board;
 	char	name[32];

 	/* firmware status */
 	struct saa7164_fw_status	fw_status;

 	tmComResHWDescr_t		hwdesc;
 	tmComResInterfaceDescr_t	intfdesc;
 	tmComResBusDescr_t		busdesc;

 	tmComResBusInfo_t		bus;

 	/* Interrupt status and ack registers */
 	u32 int_status;
 	u32 int_ack;

 	struct cmd			cmds[SAA_CMD_MAX_MSG_UNITS];
 	struct mutex			lock;

 	/* I2c related */
 	struct saa7164_i2c i2c_bus[3];

 	/* Transport related */
 	struct saa7164_tsport ts1, ts2;

 	/* Deferred command/api interrupts handling */
 	struct work_struct workcmd;

 };

 extern struct list_head saa7164_devlist;
 extern unsigned int waitsecs;

 /* ----------------------------------------------------------- */
 /* saa7164-core.c                                              */
 void saa7164_dumpregs(struct saa7164_dev *dev, u32 addr);
 void saa7164_dumphex16(struct saa7164_dev *dev, u8 *buf, int len);
 void saa7164_getfirmwarestatus(struct saa7164_dev *dev);
 u32 saa7164_getcurrentfirmwareversion(struct saa7164_dev *dev);

 /* ----------------------------------------------------------- */
 /* saa7164-fw.c                                                */
 int saa7164_downloadfirmware(struct saa7164_dev *dev);

 /* ----------------------------------------------------------- */
 /* saa7164-i2c.c                                               */
 extern int saa7164_i2c_register(struct saa7164_i2c *bus);
 extern int saa7164_i2c_unregister(struct saa7164_i2c *bus);
 extern void saa7164_call_i2c_clients(struct saa7164_i2c *bus,
 	unsigned int cmd, void *arg);

 /* ----------------------------------------------------------- */
 /* saa7164-bus.c                                               */
 int saa7164_bus_setup(struct saa7164_dev *dev);
 void saa7164_bus_dump(struct saa7164_dev *dev);
 int saa7164_bus_set(struct saa7164_dev *dev, tmComResInfo_t* msg, void *buf);
 int saa7164_bus_get(struct saa7164_dev *dev, tmComResInfo_t* msg,
 	void *buf, int peekonly);

 /* ----------------------------------------------------------- */
 /* saa7164-cmd.c                                               */
 int saa7164_cmd_send(struct saa7164_dev *dev,
 	u8 id, tmComResCmd_t command, u16 controlselector,
 	u16 size, void *buf);
 void saa7164_cmd_signal(struct saa7164_dev *dev, u8 seqno);
 int saa7164_irq_dequeue(struct saa7164_dev *dev);

 /* ----------------------------------------------------------- */
 /* saa7164-api.c                                               */
 int saa7164_api_get_fw_version(struct saa7164_dev *dev, u32 *version);
 int saa7164_api_enum_subdevs(struct saa7164_dev *dev);
 int saa7164_api_i2c_read(struct saa7164_i2c *bus, u8 addr, u32 reglen, u8 *reg,
 	u32 datalen, u8 *data);
 int saa7164_api_i2c_write(struct saa7164_i2c *bus, u8 addr,
 	u32 datalen, u8 *data);
 int saa7164_api_dif_write(struct saa7164_i2c *bus, u8 addr,
 	u32 datalen, u8 *data);
 int saa7164_api_read_eeprom(struct saa7164_dev *dev, u8 *buf, int buflen);
 int saa7164_api_set_gpiobit(struct saa7164_dev *dev, u8 unitid, u8 pin);
 int saa7164_api_clear_gpiobit(struct saa7164_dev *dev, u8 unitid, u8 pin);
 int saa7164_api_transition_port(struct saa7164_tsport *port, u8 mode);

 /* ----------------------------------------------------------- */
 /* saa7164-cards.c                                             */
 extern struct saa7164_board saa7164_boards[];
 extern const unsigned int saa7164_bcount;

 extern struct saa7164_subid saa7164_subids[];
 extern const unsigned int saa7164_idcount;

 extern void saa7164_card_list(struct saa7164_dev *dev);
 extern void saa7164_gpio_setup(struct saa7164_dev *dev);
 extern void saa7164_card_setup(struct saa7164_dev *dev);

 extern int saa7164_i2caddr_to_reglen(struct saa7164_i2c *bus, int addr);
 extern int saa7164_i2caddr_to_unitid(struct saa7164_i2c *bus, int addr);
 extern char *saa7164_unitid_name(struct saa7164_dev *dev, u8 unitid);

 /* ----------------------------------------------------------- */
 /* saa7164-dvb.c                                               */
 extern int saa7164_dvb_register(struct saa7164_tsport *port);
 extern int saa7164_dvb_unregister(struct saa7164_tsport *port);

 /* ----------------------------------------------------------- */
 /* saa7164-buffer.c                                            */
 extern struct saa7164_buffer *saa7164_buffer_alloc(struct saa7164_tsport *port,
 	u32 len);
 extern int saa7164_buffer_dealloc(struct saa7164_tsport *port,
 	struct saa7164_buffer *buf);

 /* ----------------------------------------------------------- */

 extern unsigned int saa_debug;
 #define dprintk(level, fmt, arg...)\
 	do { if (saa_debug & level)\
 		printk(KERN_DEBUG "%s: " fmt, dev->name, ## arg);\
 	} while (0)

 #define log_warn(fmt, arg...)\
 	do { \
 		printk(KERN_WARNING "%s: " fmt, dev->name, ## arg);\
 	} while (0)

 #define log_err(fmt, arg...)\
 	do { \
 		printk(KERN_ERROR "%s: " fmt, dev->name, ## arg);\
 	} while (0)

 #define saa7164_readl(reg) readl(dev->lmmio + ((reg) >> 2))
 #define saa7164_writel(reg, value) writel((value), dev->lmmio + ((reg) >> 2))


 #define saa7164_readb(reg)             readl(dev->bmmio + (reg))
 #define saa7164_writeb(reg, value)     writel((value), dev->bmmio + (reg))
	/*
	* Driver for the NXP SAA7164 PCIe bridge
	*
	* Copyright (c) 2009 Steven Toth <stoth@kernellabs.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.
	*
	* 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.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program; if not, write to the Free Software
	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	*/

	/*
	Driver architecture
	*******************

	saa7164_core.c/buffer.c/cards.c/i2c.c/dvb.c
	\| : Standard Linux driver framework for creating
	\| : exposing and managing interfaces to the rest
	\| : of the kernel or userland. Also uses _fw.c to load
	\| : firmware direct into the PCIe bus, bypassing layers.
	V
	saa7164_api..() : Translate kernel specific functions/features
	\| : into command buffers.
	V
	saa7164_cmd..() : Manages the flow of command packets on/off,
	\| : the bus. Deal with bus errors, timeouts etc.
	V
	saa7164_bus..() : Manage a read/write memory ring buffer in the
	\| : PCIe Address space.
	\|
	\| saa7164_fw...() : Load any frimware
	\| \| : direct into the device
	V V
	<- ----------------- PCIe address space -------------------- ->
	*/

	#include <linux/pci.h>
	#include <linux/i2c.h>
	#include <linux/i2c-algo-bit.h>
	#include <linux/kdev_t.h>

	#include <media/tuner.h>
	#include <media/tveeprom.h>
	#include <media/videobuf-dma-sg.h>
	#include <media/videobuf-dvb.h>

	#include "saa7164-reg.h"
	#include "saa7164-types.h"

	#include <linux/version.h>
	#include <linux/mutex.h>

	#define SAA7164_MAXBOARDS 8

	#define UNSET (-1U)
	#define SAA7164_BOARD_NOAUTO UNSET
	#define SAA7164_BOARD_UNKNOWN 0
	#define SAA7164_BOARD_UNKNOWN_REV2 1
	#define SAA7164_BOARD_UNKNOWN_REV3 2
	#define SAA7164_BOARD_HAUPPAUGE_HVR2250 3
	#define SAA7164_BOARD_HAUPPAUGE_HVR2200 4
	#define SAA7164_BOARD_HAUPPAUGE_HVR2200_2 5
	#define SAA7164_BOARD_HAUPPAUGE_HVR2200_3 6
	#define SAA7164_BOARD_HAUPPAUGE_HVR2250_2 7
	#define SAA7164_BOARD_HAUPPAUGE_HVR2250_3 8

	#define SAA7164_MAX_UNITS 8
	#define SAA7164_TS_NUMBER_OF_LINES 312
	#define SAA7164_PT_ENTRIES 16 /* (312 * 188) / 4096 */

	#define DBGLVL_FW 4
	#define DBGLVL_DVB 8
	#define DBGLVL_I2C 16
	#define DBGLVL_API 32
	#define DBGLVL_CMD 64
	#define DBGLVL_BUS 128
	#define DBGLVL_IRQ 256
	#define DBGLVL_BUF 512

	enum port_t {
	SAA7164_MPEG_UNDEFINED = 0,
	SAA7164_MPEG_DVB,
	};

	enum saa7164_i2c_bus_nr {
	SAA7164_I2C_BUS_0 = 0,
	SAA7164_I2C_BUS_1,
	SAA7164_I2C_BUS_2,
	};

	enum saa7164_buffer_flags {
	SAA7164_BUFFER_UNDEFINED = 0,
	SAA7164_BUFFER_FREE,
	SAA7164_BUFFER_BUSY,
	SAA7164_BUFFER_FULL
	};

	enum saa7164_unit_type {
	SAA7164_UNIT_UNDEFINED = 0,
	SAA7164_UNIT_DIGITAL_DEMODULATOR,
	SAA7164_UNIT_ANALOG_DEMODULATOR,
	SAA7164_UNIT_TUNER,
	SAA7164_UNIT_EEPROM,
	SAA7164_UNIT_ZILOG_IRBLASTER,
	SAA7164_UNIT_ENCODER,
	};

	/* The PCIe bridge doesn't grant direct access to i2c.
	* Instead, you address i2c devices using a uniqely
	* allocated 'unitid' value via a messaging API. This
	* is a problem. The kernel and existing demod/tuner
	* drivers expect to talk 'i2c', so we have to maintain
	* a translation layer, and a series of functions to
	* convert i2c bus + device address into a unit id.
	*/
	struct saa7164_unit {
	enum saa7164_unit_type type;
	u8 id;
	char *name;
	enum saa7164_i2c_bus_nr i2c_bus_nr;
	u8 i2c_bus_addr;
	u8 i2c_reg_len;
	};

	struct saa7164_board {
	char *name;
	enum port_t porta, portb;
	enum {
	SAA7164_CHIP_UNDEFINED = 0,
	SAA7164_CHIP_REV2,
	SAA7164_CHIP_REV3,
	} chiprev;
	struct saa7164_unit unit[SAA7164_MAX_UNITS];
	};

	struct saa7164_subid {
	u16 subvendor;
	u16 subdevice;
	u32 card;
	};

	struct saa7164_fw_status {

	/* RISC Core details */
	u32 status;
	u32 mode;
	u32 spec;
	u32 inst;
	u32 cpuload;
	u32 remainheap;

	/* Firmware version */
	u32 version;
	u32 major;
	u32 sub;
	u32 rel;
	u32 buildnr;
	};

	struct saa7164_dvb {
	struct mutex lock;
	struct dvb_adapter adapter;
	struct dvb_frontend *frontend;
	struct dvb_demux demux;
	struct dmxdev dmxdev;
	struct dmx_frontend fe_hw;
	struct dmx_frontend fe_mem;
	struct dvb_net net;
	int feeding;
	};

	struct saa7164_i2c {
	struct saa7164_dev *dev;

	enum saa7164_i2c_bus_nr nr;

	/* I2C I/O */
	struct i2c_adapter i2c_adap;
	struct i2c_algo_bit_data i2c_algo;
	struct i2c_client i2c_client;
	u32 i2c_rc;
	};

	struct saa7164_tsport;

	struct saa7164_buffer {
	struct list_head list;

	u32 nr;

	struct saa7164_tsport *port;

	/* Hardware Specific */
	/* PCI Memory allocations */
	enum saa7164_buffer_flags flags; /* Free, Busy, Full */

	/* A block of page align PCI memory */
	u32 pci_size; /* PCI allocation size in bytes */
	u64 cpu; / Virtual address */
	dma_addr_t dma; /* Physical address */

	/* A page table that splits the block into a number of entries */
	u32 pt_size; /* PCI allocation size in bytes */
	u64 pt_cpu; / Virtual address */
	dma_addr_t pt_dma; /* Physical address */
	};

	struct saa7164_tsport {

	struct saa7164_dev *dev;
	int nr;
	enum port_t type;

	struct saa7164_dvb dvb;

	/* HW related stream parameters */
	tmHWStreamParameters_t hw_streamingparams;

	/* DMA configuration values, is seeded during initialization */
	tmComResDMATermDescrHeader_t hwcfg;

	/* hardware specific registers */
	u32 bufcounter;
	u32 pitch;
	u32 bufsize;
	u32 bufoffset;
	u32 bufptr32l;
	u32 bufptr32h;
	u64 bufptr64;

	u32 numpte; /* Number of entries in array, only valid in head */
	struct mutex dmaqueue_lock;
	struct mutex dummy_dmaqueue_lock;
	struct saa7164_buffer dmaqueue;
	struct saa7164_buffer dummy_dmaqueue;

	};

	struct saa7164_dev {
	struct list_head devlist;
	atomic_t refcount;

	/* pci stuff */
	struct pci_dev *pci;
	unsigned char pci_rev, pci_lat;
	int pci_bus, pci_slot;
	u32 __iomem *lmmio;
	u8 __iomem *bmmio;
	u32 __iomem *lmmio2;
	u8 __iomem *bmmio2;
	int pci_irqmask;

	/* board details */
	int nr;
	int hwrevision;
	u32 board;
	char name[32];

	/* firmware status */
	struct saa7164_fw_status fw_status;

	tmComResHWDescr_t hwdesc;
	tmComResInterfaceDescr_t intfdesc;
	tmComResBusDescr_t busdesc;

	tmComResBusInfo_t bus;

	/* Interrupt status and ack registers */
	u32 int_status;
	u32 int_ack;

	struct cmd cmds[SAA_CMD_MAX_MSG_UNITS];
	struct mutex lock;

	/* I2c related */
	struct saa7164_i2c i2c_bus[3];

	/* Transport related */
	struct saa7164_tsport ts1, ts2;

	/* Deferred command/api interrupts handling */
	struct work_struct workcmd;

	};

	extern struct list_head saa7164_devlist;
	extern unsigned int waitsecs;

	/* ----------------------------------------------------------- */
	/* saa7164-core.c */
	void saa7164_dumpregs(struct saa7164_dev *dev, u32 addr);
	void saa7164_dumphex16(struct saa7164_dev dev, u8 buf, int len);
	void saa7164_getfirmwarestatus(struct saa7164_dev *dev);
	u32 saa7164_getcurrentfirmwareversion(struct saa7164_dev *dev);

	/* ----------------------------------------------------------- */
	/* saa7164-fw.c */
	int saa7164_downloadfirmware(struct saa7164_dev *dev);

	/* ----------------------------------------------------------- */
	/* saa7164-i2c.c */
	extern int saa7164_i2c_register(struct saa7164_i2c *bus);
	extern int saa7164_i2c_unregister(struct saa7164_i2c *bus);
	extern void saa7164_call_i2c_clients(struct saa7164_i2c *bus,
	unsigned int cmd, void *arg);

	/* ----------------------------------------------------------- */
	/* saa7164-bus.c */
	int saa7164_bus_setup(struct saa7164_dev *dev);
	void saa7164_bus_dump(struct saa7164_dev *dev);
	int saa7164_bus_set(struct saa7164_dev dev, tmComResInfo_t msg, void *buf);
	int saa7164_bus_get(struct saa7164_dev dev, tmComResInfo_t msg,
	void *buf, int peekonly);

	/* ----------------------------------------------------------- */
	/* saa7164-cmd.c */
	int saa7164_cmd_send(struct saa7164_dev *dev,
	u8 id, tmComResCmd_t command, u16 controlselector,
	u16 size, void *buf);
	void saa7164_cmd_signal(struct saa7164_dev *dev, u8 seqno);
	int saa7164_irq_dequeue(struct saa7164_dev *dev);

	/* ----------------------------------------------------------- */
	/* saa7164-api.c */
	int saa7164_api_get_fw_version(struct saa7164_dev dev, u32 version);
	int saa7164_api_enum_subdevs(struct saa7164_dev *dev);
	int saa7164_api_i2c_read(struct saa7164_i2c bus, u8 addr, u32 reglen, u8 reg,
	u32 datalen, u8 *data);
	int saa7164_api_i2c_write(struct saa7164_i2c *bus, u8 addr,
	u32 datalen, u8 *data);
	int saa7164_api_dif_write(struct saa7164_i2c *bus, u8 addr,
	u32 datalen, u8 *data);
	int saa7164_api_read_eeprom(struct saa7164_dev dev, u8 buf, int buflen);
	int saa7164_api_set_gpiobit(struct saa7164_dev *dev, u8 unitid, u8 pin);
	int saa7164_api_clear_gpiobit(struct saa7164_dev *dev, u8 unitid, u8 pin);
	int saa7164_api_transition_port(struct saa7164_tsport *port, u8 mode);

	/* ----------------------------------------------------------- */
	/* saa7164-cards.c */
	extern struct saa7164_board saa7164_boards[];
	extern const unsigned int saa7164_bcount;

	extern struct saa7164_subid saa7164_subids[];
	extern const unsigned int saa7164_idcount;

	extern void saa7164_card_list(struct saa7164_dev *dev);
	extern void saa7164_gpio_setup(struct saa7164_dev *dev);
	extern void saa7164_card_setup(struct saa7164_dev *dev);

	extern int saa7164_i2caddr_to_reglen(struct saa7164_i2c *bus, int addr);
	extern int saa7164_i2caddr_to_unitid(struct saa7164_i2c *bus, int addr);
	extern char saa7164_unitid_name(struct saa7164_dev dev, u8 unitid);

	/* ----------------------------------------------------------- */
	/* saa7164-dvb.c */
	extern int saa7164_dvb_register(struct saa7164_tsport *port);
	extern int saa7164_dvb_unregister(struct saa7164_tsport *port);

	/* ----------------------------------------------------------- */
	/* saa7164-buffer.c */
	extern struct saa7164_buffer saa7164_buffer_alloc(struct saa7164_tsport port,
	u32 len);
	extern int saa7164_buffer_dealloc(struct saa7164_tsport *port,
	struct saa7164_buffer *buf);

	/* ----------------------------------------------------------- */

	extern unsigned int saa_debug;
	#define dprintk(level, fmt, arg...)\
	do { if (saa_debug & level)\
	printk(KERN_DEBUG "%s: " fmt, dev->name, ## arg);\
	} while (0)

	#define log_warn(fmt, arg...)\
	do { \
	printk(KERN_WARNING "%s: " fmt, dev->name, ## arg);\
	} while (0)

	#define log_err(fmt, arg...)\
	do { \
	printk(KERN_ERROR "%s: " fmt, dev->name, ## arg);\
	} while (0)

	#define saa7164_readl(reg) readl(dev->lmmio + ((reg) >> 2))
	#define saa7164_writel(reg, value) writel((value), dev->lmmio + ((reg) >> 2))


	#define saa7164_readb(reg) readl(dev->bmmio + (reg))
	#define saa7164_writeb(reg, value) writel((value), dev->bmmio + (reg))