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/* dvb-usb.h is part of the DVB USB library.
*
* Copyright (C) 2004-5 Patrick Boettcher (patrick.boettcher@desy.de)
* see dvb-usb-init.c for copyright information.
*
* the headerfile, all dvb-usb-drivers have to include.
*/
#ifndef __DVB_USB_H__
#define __DVB_USB_H__
#include <linux/config.h>
#include <linux/input.h>
#include <linux/module.h>
#include <linux/usb.h>
#include "dvb_frontend.h"
#include "dvb_demux.h"
#include "dvb_net.h"
#include "dmxdev.h"
#include "dvb-pll.h"
#include "dvb-usb-ids.h"
/* debug */
#ifdef CONFIG_DVB_USB_DEBUG
#define dprintk(var,level,args...) \
do { if ((var & level)) { printk(args); } } while (0)
#define debug_dump(b,l,func) {\
int loop_; \
for (loop_ = 0; loop_ < l; loop_++) func("%02x ", b[loop_]); \
func("\n");\
}
#define DVB_USB_DEBUG_STATUS
#else
#define dprintk(args...)
#define debug_dump(b,l,func)
#define DVB_USB_DEBUG_STATUS " (debugging is not enabled)"
#endif
/* generic log methods - taken from usb.h */
#ifndef DVB_USB_LOG_PREFIX
#define DVB_USB_LOG_PREFIX "dvb-usb (please define a log prefix)"
#endif
#undef err
#define err(format, arg...) printk(KERN_ERR DVB_USB_LOG_PREFIX ": " format "\n" , ## arg)
#undef info
#define info(format, arg...) printk(KERN_INFO DVB_USB_LOG_PREFIX ": " format "\n" , ## arg)
#undef warn
#define warn(format, arg...) printk(KERN_WARNING DVB_USB_LOG_PREFIX ": " format "\n" , ## arg)
/**
* struct dvb_usb_device_description - name and its according USB IDs
* @name: real name of the box, regardless which DVB USB device class is in use
* @cold_ids: array of struct usb_device_id which describe the device in
* pre-firmware state
* @warm_ids: array of struct usb_device_id which describe the device in
* post-firmware state
*
* Each DVB USB device class can have one or more actual devices, this struct
* assigns a name to it.
*/
struct dvb_usb_device_description {
const char *name;
#define DVB_USB_ID_MAX_NUM 15
struct usb_device_id *cold_ids[DVB_USB_ID_MAX_NUM];
struct usb_device_id *warm_ids[DVB_USB_ID_MAX_NUM];
};
/**
* struct dvb_usb_rc_key - a remote control key and its input-event
* @custom: the vendor/custom part of the key
* @data: the actual key part
* @event: the input event assigned to key identified by custom and data
*/
struct dvb_usb_rc_key {
u8 custom,data;
u32 event;
};
struct dvb_usb_device;
/**
* struct dvb_usb_properties - properties of a dvb-usb-device
* @caps: capabilites of the DVB USB device.
* @pid_filter_count: number of PID filter position in the optional hardware
* PID-filter.
*
* @usb_ctrl: which USB device-side controller is in use. Needed for firmware
* download.
* @firmware: name of the firmware file.
*
* @size_of_priv: how many bytes shall be allocated for the private field
* of struct dvb_usb_device.
*
* @power_ctrl: called to enable/disable power of the device.
* @streaming_crtl: called to start and stop the MPEG2-TS streaming of the
* device (not URB submitting/killing).
* @pid_filter_ctrl: called to en/disable the PID filter, if any.
* @pid_filter: called to set/unset a PID for filtering.
*
* @read_mac_address: called to read the MAC address of the device.
*
* @frontend_attach: called to attach the possible frontends (fill fe-field
* of struct dvb_usb_device).
* @tuner_attach: called to attach the correct tuner and to fill pll_addr,
* pll_desc and pll_init_buf of struct dvb_usb_device).
* @identify_state: called to determine the state (cold or warm), when it
* is not distinguishable by the USB IDs.
*
* @rc_key_map: a hard-wired array of struct dvb_usb_rc_key (NULL to disable
* remote control handling).
* @rc_key_map_size: number of items in @rc_key_map.
* @rc_query: called to query an event event.
* @rc_interval: time in ms between two queries.
*
* @i2c_algo: i2c_algorithm if the device has I2CoverUSB.
*
* @generic_bulk_ctrl_endpoint: most of the DVB USB devices have a generic
* endpoint which received control messages with bulk transfers. When this
* is non-zero, one can use dvb_usb_generic_rw and dvb_usb_generic_write-
* helper functions.
*
* @urb: describes the kind of USB transfer used for MPEG2-TS-streaming.
* Currently only BULK is implemented
*
* @num_device_descs: number of struct dvb_usb_device_description in @devices
* @devices: array of struct dvb_usb_device_description compatibles with these
* properties.
*/
struct dvb_usb_properties {
#define DVB_USB_HAS_PID_FILTER 0x01
#define DVB_USB_PID_FILTER_CAN_BE_TURNED_OFF 0x02
#define DVB_USB_NEED_PID_FILTERING 0x04
#define DVB_USB_IS_AN_I2C_ADAPTER 0x08
int caps;
int pid_filter_count;
#define CYPRESS_AN2135 0
#define CYPRESS_AN2235 1
#define CYPRESS_FX2 2
int usb_ctrl;
const char *firmware;
int size_of_priv;
int (*power_ctrl) (struct dvb_usb_device *, int);
int (*streaming_ctrl) (struct dvb_usb_device *, int);
int (*pid_filter_ctrl) (struct dvb_usb_device *, int);
int (*pid_filter) (struct dvb_usb_device *, int, u16, int);
int (*read_mac_address) (struct dvb_usb_device *, u8 []);
int (*frontend_attach) (struct dvb_usb_device *);
int (*tuner_attach) (struct dvb_usb_device *);
int (*identify_state) (struct usb_device *, struct dvb_usb_properties *,
struct dvb_usb_device_description **, int *);
/* remote control properties */
#define REMOTE_NO_KEY_PRESSED 0x00
#define REMOTE_KEY_PRESSED 0x01
#define REMOTE_KEY_REPEAT 0x02
struct dvb_usb_rc_key *rc_key_map;
int rc_key_map_size;
int (*rc_query) (struct dvb_usb_device *, u32 *, int *);
int rc_interval;
struct i2c_algorithm *i2c_algo;
int generic_bulk_ctrl_endpoint;
struct {
#define DVB_USB_BULK 1
#define DVB_USB_ISOC 2
int type;
int count;
int endpoint;
union {
struct {
int buffersize; /* per URB */
} bulk;
struct {
int framesperurb;
int framesize;
} isoc;
} u;
} urb;
int num_device_descs;
struct dvb_usb_device_description devices[8];
};
/**
* struct dvb_usb_device - object of a DVB USB device
* @props: copy of the struct dvb_usb_properties this device belongs to.
* @desc: pointer to the device's struct dvb_usb_device_description.
* @state: initialization and runtime state of the device.
*
* @udev: pointer to the device's struct usb_device.
* @urb_list: array of dynamically allocated struct urb for the MPEG2-TS-
* streaming.
* @buffer: buffer used to streaming.
* @dma_handle: dma_addr_t for buffer.
* @urbs_initialized: number of URBs initialized.
* @urbs_submitted: number of URBs submitted.
* @feedcount: number of reqested feeds (used for streaming-activation)
* @pid_filtering: is hardware pid_filtering used or not.
* @usb_sem: semaphore of USB control messages (reading needs two messages)
* @i2c_sem: semaphore for i2c-transfers
* @i2c_adap: device's i2c_adapter if it uses I2CoverUSB
* @pll_addr: I2C address of the tuner for programming
* @pll_init: array containing the initialization buffer
* @pll_desc: pointer to the appropriate struct dvb_pll_desc
* @tuner_pass_ctrl: called to (de)activate tuner passthru of the demod
* @dvb_adap: device's dvb_adapter.
* @dmxdev: device's dmxdev.
* @demux: device's software demuxer.
* @dvb_net: device's dvb_net interfaces.
* @dvb_frontend: device's frontend.
* @max_feed_count: how many feeds can be handled simultaneously by this
* device
* @fe_sleep: rerouted frontend-sleep function.
* @fe_init: rerouted frontend-init (wakeup) function.
* @rc_input_dev: input device for the remote control.
* @rc_query_work: struct work_struct frequent rc queries
* @last_event: last triggered event
* @last_state: last state (no, pressed, repeat)
* @owner: owner of the dvb_adapter
* @priv: private data of the actual driver (allocate by dvb-usb, size defined
* in size_of_priv of dvb_usb_properties).
*/
struct dvb_usb_device {
struct dvb_usb_properties props;
struct dvb_usb_device_description *desc;
#define DVB_USB_STATE_INIT 0x000
#define DVB_USB_STATE_URB_LIST 0x001
#define DVB_USB_STATE_URB_BUF 0x002
#define DVB_USB_STATE_DVB 0x004
#define DVB_USB_STATE_I2C 0x008
#define DVB_USB_STATE_REMOTE 0x010
#define DVB_USB_STATE_URB_SUBMIT 0x020
int state;
/* usb */
struct usb_device *udev;
struct urb **urb_list;
u8 *buffer;
dma_addr_t dma_handle;
int urbs_initialized;
int urbs_submitted;
int feedcount;
int pid_filtering;
/* locking */
struct semaphore usb_sem;
/* i2c */
struct semaphore i2c_sem;
struct i2c_adapter i2c_adap;
/* tuner programming information */
u8 pll_addr;
u8 pll_init[4];
struct dvb_pll_desc *pll_desc;
int (*tuner_pass_ctrl)(struct dvb_frontend *, int, u8);
/* dvb */
struct dvb_adapter dvb_adap;
struct dmxdev dmxdev;
struct dvb_demux demux;
struct dvb_net dvb_net;
struct dvb_frontend* fe;
int max_feed_count;
int (*fe_sleep) (struct dvb_frontend *);
int (*fe_init) (struct dvb_frontend *);
/* remote control */
struct input_dev rc_input_dev;
struct work_struct rc_query_work;
u32 last_event;
int last_state;
struct module *owner;
void *priv;
};
extern int dvb_usb_device_init(struct usb_interface *, struct dvb_usb_properties *, struct module *);
extern void dvb_usb_device_exit(struct usb_interface *);
/* the generic read/write method for device control */
extern int dvb_usb_generic_rw(struct dvb_usb_device *, u8 *, u16, u8 *, u16,int);
extern int dvb_usb_generic_write(struct dvb_usb_device *, u8 *, u16);
/* commonly used remote control parsing */
extern int dvb_usb_nec_rc_key_to_event(struct dvb_usb_device *, u8[], u32 *, int *);
/* commonly used pll init and set functions */
extern int dvb_usb_pll_init_i2c(struct dvb_frontend *);
extern int dvb_usb_pll_set(struct dvb_frontend *, struct dvb_frontend_parameters *, u8[]);
extern int dvb_usb_pll_set_i2c(struct dvb_frontend *, struct dvb_frontend_parameters *);
#endif
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