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[media] dvb_usb_v2: copy current dvb_usb as a starting point 

Use current implementation as a starting point for the new one.

[mchehab@redhat.com: remove the new files from the build system,
 as the symbols there conflict with the existing ones]
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Antti Palosaari 2012-05-23 10:06:09 -03:00 committed by Mauro Carvalho Chehab
parent f9cd49033b
commit c79b339f92
9 changed files with 2085 additions and 0 deletions
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485
drivers/media/dvb/dvb-usb/dvb_usb.h Normal file
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/* dvb-usb.h is part of the DVB USB library.
*
* Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@desy.de)
* see dvb-usb-init.c for copyright information.
*
* the headerfile, all dvb-usb-drivers have to include.
*
* TODO: clean-up the structures for unused fields and update the comments
*/
#ifndef DVB_USB_H
#define DVB_USB_H
#include <linux/input.h>
#include <linux/usb.h>
#include <linux/firmware.h>
#include <linux/mutex.h>
#include <media/rc-core.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];
};
static inline u8 rc5_custom(struct rc_map_table *key)
{
return (key->scancode >> 8) & 0xff;
}
static inline u8 rc5_data(struct rc_map_table *key)
{
return key->scancode & 0xff;
}
static inline u16 rc5_scan(struct rc_map_table *key)
{
return key->scancode & 0xffff;
}
struct dvb_usb_device;
struct dvb_usb_adapter;
struct usb_data_stream;
/**
* Properties of USB streaming - TODO this structure should be somewhere else
* describes the kind of USB transfer used for data-streaming.
* (BULK or ISOC)
*/
struct usb_data_stream_properties {
#define USB_BULK 1
#define USB_ISOC 2
int type;
int count;
int endpoint;
union {
struct {
int buffersize; /* per URB */
} bulk;
struct {
int framesperurb;
int framesize;
int interval;
} isoc;
} u;
};
/**
* struct dvb_usb_adapter_properties - properties of a dvb-usb-adapter.
* A DVB-USB-Adapter is basically a dvb_adapter which is present on a USB-device.
* @caps: capabilities of the DVB USB device.
* @pid_filter_count: number of PID filter position in the optional hardware
* PID-filter.
* @num_frontends: number of frontends of the DVB USB adapter.
* @frontend_ctrl: called to power on/off active frontend.
* @streaming_ctrl: 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.
* @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).
* @stream: configuration of the USB streaming
*/
struct dvb_usb_adapter_fe_properties {
#define DVB_USB_ADAP_HAS_PID_FILTER 0x01
#define DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF 0x02
#define DVB_USB_ADAP_NEED_PID_FILTERING 0x04
#define DVB_USB_ADAP_RECEIVES_204_BYTE_TS 0x08
#define DVB_USB_ADAP_RECEIVES_RAW_PAYLOAD 0x10
int caps;
int pid_filter_count;
int (*streaming_ctrl) (struct dvb_usb_adapter *, int);
int (*pid_filter_ctrl) (struct dvb_usb_adapter *, int);
int (*pid_filter) (struct dvb_usb_adapter *, int, u16, int);
int (*frontend_attach) (struct dvb_usb_adapter *);
int (*tuner_attach) (struct dvb_usb_adapter *);
struct usb_data_stream_properties stream;
int size_of_priv;
};
#define MAX_NO_OF_FE_PER_ADAP 3
struct dvb_usb_adapter_properties {
int size_of_priv;
int (*frontend_ctrl) (struct dvb_frontend *, int);
int (*fe_ioctl_override) (struct dvb_frontend *,
unsigned int, void *, unsigned int);
int num_frontends;
struct dvb_usb_adapter_fe_properties fe[MAX_NO_OF_FE_PER_ADAP];
};
/**
* struct dvb_rc_legacy - old properties of remote controller
* @rc_map_table: a hard-wired array of struct rc_map_table (NULL to disable
* remote control handling).
* @rc_map_size: number of items in @rc_map_table.
* @rc_query: called to query an event event.
* @rc_interval: time in ms between two queries.
*/
struct dvb_rc_legacy {
/* remote control properties */
#define REMOTE_NO_KEY_PRESSED 0x00
#define REMOTE_KEY_PRESSED 0x01
#define REMOTE_KEY_REPEAT 0x02
struct rc_map_table *rc_map_table;
int rc_map_size;
int (*rc_query) (struct dvb_usb_device *, u32 *, int *);
int rc_interval;
};
/**
* struct dvb_rc properties of remote controller, using rc-core
* @rc_codes: name of rc codes table
* @protocol: type of protocol(s) currently used by the driver
* @allowed_protos: protocol(s) supported by the driver
* @driver_type: Used to point if a device supports raw mode
* @change_protocol: callback to change protocol
* @rc_query: called to query an event event.
* @rc_interval: time in ms between two queries.
* @bulk_mode: device supports bulk mode for RC (disable polling mode)
*/
struct dvb_rc {
char *rc_codes;
u64 protocol;
u64 allowed_protos;
enum rc_driver_type driver_type;
int (*change_protocol)(struct rc_dev *dev, u64 rc_type);
char *module_name;
int (*rc_query) (struct dvb_usb_device *d);
int rc_interval;
bool bulk_mode; /* uses bulk mode */
};
/**
* enum dvb_usb_mode - Specifies if it is using a legacy driver or a new one
* based on rc-core
* This is initialized/used only inside dvb-usb-remote.c.
* It shouldn't be set by the drivers.
*/
enum dvb_usb_mode {
DVB_RC_LEGACY,
DVB_RC_CORE,
};
/**
* struct dvb_usb_device_properties - properties of a dvb-usb-device
* @usb_ctrl: which USB device-side controller is in use. Needed for firmware
* download.
* @firmware: name of the firmware file.
* @download_firmware: called to download the firmware when the usb_ctrl is
* DEVICE_SPECIFIC.
* @no_reconnect: device doesn't do a reconnect after downloading the firmware,
* so do the warm initialization right after it
*
* @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.
* @read_mac_address: called to read the MAC address of the device.
* @identify_state: called to determine the state (cold or warm), when it
* is not distinguishable by the USB IDs.
*
* @rc: remote controller properties
*
* @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.
*
* @generic_bulk_ctrl_endpoint_response: some DVB USB devices use a separate
* endpoint for responses to control messages sent with bulk transfers via
* the generic_bulk_ctrl_endpoint. When this is non-zero, this will be used
* instead of the generic_bulk_ctrl_endpoint when reading usb responses in
* the dvb_usb_generic_rw helper function.
*
* @num_device_descs: number of struct dvb_usb_device_description in @devices
* @devices: array of struct dvb_usb_device_description compatibles with these
* properties.
*/
#define MAX_NO_OF_ADAPTER_PER_DEVICE 2
struct dvb_usb_device_properties {
#define DVB_USB_IS_AN_I2C_ADAPTER 0x01
int caps;
#define DEVICE_SPECIFIC 0
#define CYPRESS_AN2135 1
#define CYPRESS_AN2235 2
#define CYPRESS_FX2 3
int usb_ctrl;
int (*download_firmware) (struct usb_device *, const struct firmware *);
const char *firmware;
int no_reconnect;
int size_of_priv;
int num_adapters;
struct dvb_usb_adapter_properties adapter[MAX_NO_OF_ADAPTER_PER_DEVICE];
int (*power_ctrl) (struct dvb_usb_device *, int);
int (*read_mac_address) (struct dvb_usb_device *, u8 []);
int (*identify_state) (struct usb_device *, struct dvb_usb_device_properties *,
struct dvb_usb_device_description **, int *);
struct {
enum dvb_usb_mode mode; /* Drivers shouldn't touch on it */
struct dvb_rc_legacy legacy;
struct dvb_rc core;
} rc;
struct i2c_algorithm *i2c_algo;
int generic_bulk_ctrl_endpoint;
int generic_bulk_ctrl_endpoint_response;
int num_device_descs;
struct dvb_usb_device_description devices[12];
};
/**
* struct usb_data_stream - generic object of an USB stream
* @buf_num: number of buffer allocated.
* @buf_size: size of each buffer in buf_list.
* @buf_list: array containing all allocate buffers for streaming.
* @dma_addr: list of dma_addr_t for each buffer in buf_list.
*
* @urbs_initialized: number of URBs initialized.
* @urbs_submitted: number of URBs submitted.
*/
#define MAX_NO_URBS_FOR_DATA_STREAM 10
struct usb_data_stream {
struct usb_device *udev;
struct usb_data_stream_properties props;
#define USB_STATE_INIT 0x00
#define USB_STATE_URB_BUF 0x01
int state;
void (*complete) (struct usb_data_stream *, u8 *, size_t);
struct urb *urb_list[MAX_NO_URBS_FOR_DATA_STREAM];
int buf_num;
unsigned long buf_size;
u8 *buf_list[MAX_NO_URBS_FOR_DATA_STREAM];
dma_addr_t dma_addr[MAX_NO_URBS_FOR_DATA_STREAM];
int urbs_initialized;
int urbs_submitted;
void *user_priv;
};
/**
* struct dvb_usb_adapter - a DVB adapter on a USB device
* @id: index of this adapter (starting with 0).
*
* @feedcount: number of reqested feeds (used for streaming-activation)
* @pid_filtering: is hardware pid_filtering used or not.
*
* @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 or the board
*
* @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_init: rerouted frontend-init (wakeup) function.
* @fe_sleep: rerouted frontend-sleep function.
*
* @stream: the usb data stream.
*/
struct dvb_usb_fe_adapter {
struct dvb_frontend *fe;
int (*fe_init) (struct dvb_frontend *);
int (*fe_sleep) (struct dvb_frontend *);
struct usb_data_stream stream;
int pid_filtering;
int max_feed_count;
void *priv;
};
struct dvb_usb_adapter {
struct dvb_usb_device *dev;
struct dvb_usb_adapter_properties props;
#define DVB_USB_ADAP_STATE_INIT 0x000
#define DVB_USB_ADAP_STATE_DVB 0x001
int state;
u8 id;
int feedcount;
/* dvb */
struct dvb_adapter dvb_adap;
struct dmxdev dmxdev;
struct dvb_demux demux;
struct dvb_net dvb_net;
struct dvb_usb_fe_adapter fe_adap[MAX_NO_OF_FE_PER_ADAP];
int active_fe;
int num_frontends_initialized;
void *priv;
};
/**
* 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.
*
* @powered: indicated whether the device is power or not.
* Powered is in/decremented for each call to modify the state.
* @udev: pointer to the device's struct usb_device.
*
* @usb_mutex: semaphore of USB control messages (reading needs two messages)
* @i2c_mutex: semaphore for i2c-transfers
*
* @i2c_adap: device's i2c_adapter if it uses I2CoverUSB
*
* @rc_dev: rc device for the remote control (rc-core mode)
* @input_dev: input device for the remote control (legacy mode)
* @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_device_properties props;
struct dvb_usb_device_description *desc;
struct usb_device *udev;
#define DVB_USB_STATE_INIT 0x000
#define DVB_USB_STATE_I2C 0x001
#define DVB_USB_STATE_DVB 0x002
#define DVB_USB_STATE_REMOTE 0x004
int state;
int powered;
/* locking */
struct mutex usb_mutex;
/* i2c */
struct mutex i2c_mutex;
struct i2c_adapter i2c_adap;
int num_adapters_initialized;
struct dvb_usb_adapter adapter[MAX_NO_OF_ADAPTER_PER_DEVICE];
/* remote control */
struct rc_dev *rc_dev;
struct input_dev *input_dev;
char rc_phys[64];
struct delayed_work rc_query_work;
u32 last_event;
int last_state;
struct module *owner;
void *priv;
};
extern int dvb_usbv2_device_init(struct usb_interface *,
struct dvb_usb_device_properties *,
struct module *, struct dvb_usb_device **,
short *adapter_nums);
extern void dvb_usbv2_device_exit(struct usb_interface *);
/* the generic read/write method for device control */
extern int dvb_usbv2_generic_rw(struct dvb_usb_device *, u8 *, u16, u8 *, u16,int);
extern int dvb_usbv2_generic_write(struct dvb_usb_device *, u8 *, u16);
/* commonly used remote control parsing */
extern int dvb_usbv2_nec_rc_key_to_event(struct dvb_usb_device *, u8[], u32 *, int *);
/* commonly used firmware download types and function */
struct hexline {
u8 len;
u32 addr;
u8 type;
u8 data[255];
u8 chk;
};
extern int usbv2_cypress_load_firmware(struct usb_device *udev, const struct firmware *fw, int type);
extern int dvb_usbv2_get_hexline(const struct firmware *fw, struct hexline *hx, int *pos);
#endif

52
drivers/media/dvb/dvb-usb/dvb_usb_common.h Normal file
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/* dvb-usb-common.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.
*
* a header file containing prototypes and types for internal use of the dvb-usb-lib
*/
#ifndef DVB_USB_COMMON_H
#define DVB_USB_COMMON_H
#define DVB_USB_LOG_PREFIX "dvb_usb"
#include "dvb_usb.h"
extern int dvb_usb_debug;
extern int dvb_usb_disable_rc_polling;
#define deb_info(args...) dprintk(dvb_usb_debug,0x001,args)
#define deb_xfer(args...) dprintk(dvb_usb_debug,0x002,args)
#define deb_pll(args...) dprintk(dvb_usb_debug,0x004,args)
#define deb_ts(args...) dprintk(dvb_usb_debug,0x008,args)
#define deb_err(args...) dprintk(dvb_usb_debug,0x010,args)
#define deb_rc(args...) dprintk(dvb_usb_debug,0x020,args)
#define deb_fw(args...) dprintk(dvb_usb_debug,0x040,args)
#define deb_mem(args...) dprintk(dvb_usb_debug,0x080,args)
#define deb_uxfer(args...) dprintk(dvb_usb_debug,0x100,args)
/* commonly used methods */
extern int dvb_usb_download_firmware(struct usb_device *, struct dvb_usb_device_properties *);
extern int dvb_usb_device_power_ctrl(struct dvb_usb_device *d, int onoff);
extern int usb_urb_init(struct usb_data_stream *stream, struct usb_data_stream_properties *props);
extern int usb_urb_exit(struct usb_data_stream *stream);
extern int usb_urb_submit(struct usb_data_stream *stream);
extern int usb_urb_kill(struct usb_data_stream *stream);
extern int dvb_usb_adapter_stream_init(struct dvb_usb_adapter *adap);
extern int dvb_usb_adapter_stream_exit(struct dvb_usb_adapter *adap);
extern int dvb_usb_i2c_init(struct dvb_usb_device *);
extern int dvb_usb_i2c_exit(struct dvb_usb_device *);
extern int dvb_usb_adapter_dvb_init(struct dvb_usb_adapter *adap,
short *adapter_nums);
extern int dvb_usb_adapter_dvb_exit(struct dvb_usb_adapter *adap);
extern int dvb_usb_adapter_frontend_init(struct dvb_usb_adapter *adap);
extern int dvb_usb_adapter_frontend_exit(struct dvb_usb_adapter *adap);
extern int dvb_usb_remote_init(struct dvb_usb_device *);
extern int dvb_usb_remote_exit(struct dvb_usb_device *);
#endif

289
drivers/media/dvb/dvb-usb/dvb_usb_dvb.c Normal file
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/* dvb-usb-dvb.c is part of the DVB USB library.
*
* Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@desy.de)
* see dvb-usb-init.c for copyright information.
*
* This file contains functions for initializing and handling the
* linux-dvb API.
*/
#include "dvb_usb_common.h"
/* does the complete input transfer handling */
static int dvb_usb_ctrl_feed(struct dvb_demux_feed *dvbdmxfeed, int onoff)
{
struct dvb_usb_adapter *adap = dvbdmxfeed->demux->priv;
int newfeedcount, ret;
if (adap == NULL)
return -ENODEV;
if ((adap->active_fe < 0) ||
(adap->active_fe >= adap->num_frontends_initialized)) {
return -EINVAL;
}
newfeedcount = adap->feedcount + (onoff ? 1 : -1);
/* stop feed before setting a new pid if there will be no pid anymore */
if (newfeedcount == 0) {
deb_ts("stop feeding\n");
usb_urb_kill(&adap->fe_adap[adap->active_fe].stream);
if (adap->props.fe[adap->active_fe].streaming_ctrl != NULL) {
ret = adap->props.fe[adap->active_fe].streaming_ctrl(adap, 0);
if (ret < 0) {
err("error while stopping stream.");
return ret;
}
}
}
adap->feedcount = newfeedcount;
/* activate the pid on the device specific pid_filter */
deb_ts("setting pid (%s): %5d %04x at index %d '%s'\n",
adap->fe_adap[adap->active_fe].pid_filtering ?
"yes" : "no", dvbdmxfeed->pid, dvbdmxfeed->pid,
dvbdmxfeed->index, onoff ? "on" : "off");
if (adap->props.fe[adap->active_fe].caps & DVB_USB_ADAP_HAS_PID_FILTER &&
adap->fe_adap[adap->active_fe].pid_filtering &&
adap->props.fe[adap->active_fe].pid_filter != NULL)
adap->props.fe[adap->active_fe].pid_filter(adap, dvbdmxfeed->index, dvbdmxfeed->pid, onoff);
/* start the feed if this was the first feed and there is still a feed
* for reception.
*/
if (adap->feedcount == onoff && adap->feedcount > 0) {
deb_ts("submitting all URBs\n");
usb_urb_submit(&adap->fe_adap[adap->active_fe].stream);
deb_ts("controlling pid parser\n");
if (adap->props.fe[adap->active_fe].caps & DVB_USB_ADAP_HAS_PID_FILTER &&
adap->props.fe[adap->active_fe].caps &
DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF &&
adap->props.fe[adap->active_fe].pid_filter_ctrl != NULL) {
ret = adap->props.fe[adap->active_fe].pid_filter_ctrl(adap,
adap->fe_adap[adap->active_fe].pid_filtering);
if (ret < 0) {
err("could not handle pid_parser");
return ret;
}
}
deb_ts("start feeding\n");
if (adap->props.fe[adap->active_fe].streaming_ctrl != NULL) {
ret = adap->props.fe[adap->active_fe].streaming_ctrl(adap, 1);
if (ret < 0) {
err("error while enabling fifo.");
return ret;
}
}
}
return 0;
}
static int dvb_usb_start_feed(struct dvb_demux_feed *dvbdmxfeed)
{
deb_ts("start pid: 0x%04x, feedtype: %d\n", dvbdmxfeed->pid,dvbdmxfeed->type);
return dvb_usb_ctrl_feed(dvbdmxfeed,1);
}
static int dvb_usb_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
{
deb_ts("stop pid: 0x%04x, feedtype: %d\n", dvbdmxfeed->pid, dvbdmxfeed->type);
return dvb_usb_ctrl_feed(dvbdmxfeed,0);
}
int dvb_usb_adapter_dvb_init(struct dvb_usb_adapter *adap, short *adapter_nums)
{
int i;
int ret = dvb_register_adapter(&adap->dvb_adap, adap->dev->desc->name,
adap->dev->owner, &adap->dev->udev->dev,
adapter_nums);
if (ret < 0) {
deb_info("dvb_register_adapter failed: error %d", ret);
goto err;
}
adap->dvb_adap.priv = adap;
adap->dvb_adap.fe_ioctl_override = adap->props.fe_ioctl_override;
if (adap->dev->props.read_mac_address) {
if (adap->dev->props.read_mac_address(adap->dev,adap->dvb_adap.proposed_mac) == 0)
info("MAC address: %pM",adap->dvb_adap.proposed_mac);
else
err("MAC address reading failed.");
}
adap->demux.dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING;
adap->demux.priv = adap;
adap->demux.filternum = 0;
for (i = 0; i < adap->props.num_frontends; i++) {
if (adap->demux.filternum < adap->fe_adap[i].max_feed_count)
adap->demux.filternum = adap->fe_adap[i].max_feed_count;
}
adap->demux.feednum = adap->demux.filternum;
adap->demux.start_feed = dvb_usb_start_feed;
adap->demux.stop_feed = dvb_usb_stop_feed;
adap->demux.write_to_decoder = NULL;
if ((ret = dvb_dmx_init(&adap->demux)) < 0) {
err("dvb_dmx_init failed: error %d",ret);
goto err_dmx;
}
adap->dmxdev.filternum = adap->demux.filternum;
adap->dmxdev.demux = &adap->demux.dmx;
adap->dmxdev.capabilities = 0;
if ((ret = dvb_dmxdev_init(&adap->dmxdev, &adap->dvb_adap)) < 0) {
err("dvb_dmxdev_init failed: error %d",ret);
goto err_dmx_dev;
}
if ((ret = dvb_net_init(&adap->dvb_adap, &adap->dvb_net,
&adap->demux.dmx)) < 0) {
err("dvb_net_init failed: error %d",ret);
goto err_net_init;
}
adap->state |= DVB_USB_ADAP_STATE_DVB;
return 0;
err_net_init:
dvb_dmxdev_release(&adap->dmxdev);
err_dmx_dev:
dvb_dmx_release(&adap->demux);
err_dmx:
dvb_unregister_adapter(&adap->dvb_adap);
err:
return ret;
}
int dvb_usb_adapter_dvb_exit(struct dvb_usb_adapter *adap)
{
if (adap->state & DVB_USB_ADAP_STATE_DVB) {
deb_info("unregistering DVB part\n");
dvb_net_release(&adap->dvb_net);
adap->demux.dmx.close(&adap->demux.dmx);
dvb_dmxdev_release(&adap->dmxdev);
dvb_dmx_release(&adap->demux);
dvb_unregister_adapter(&adap->dvb_adap);
adap->state &= ~DVB_USB_ADAP_STATE_DVB;
}
return 0;
}
static int dvb_usb_set_active_fe(struct dvb_frontend *fe, int onoff)
{
struct dvb_usb_adapter *adap = fe->dvb->priv;
int ret = (adap->props.frontend_ctrl) ?
adap->props.frontend_ctrl(fe, onoff) : 0;
if (ret < 0) {
err("frontend_ctrl request failed");
return ret;
}
if (onoff)
adap->active_fe = fe->id;
return 0;
}
static int dvb_usb_fe_wakeup(struct dvb_frontend *fe)
{
struct dvb_usb_adapter *adap = fe->dvb->priv;
dvb_usb_device_power_ctrl(adap->dev, 1);
dvb_usb_set_active_fe(fe, 1);
if (adap->fe_adap[fe->id].fe_init)
adap->fe_adap[fe->id].fe_init(fe);
return 0;
}
static int dvb_usb_fe_sleep(struct dvb_frontend *fe)
{
struct dvb_usb_adapter *adap = fe->dvb->priv;
if (adap->fe_adap[fe->id].fe_sleep)
adap->fe_adap[fe->id].fe_sleep(fe);
dvb_usb_set_active_fe(fe, 0);
return dvb_usb_device_power_ctrl(adap->dev, 0);
}
int dvb_usb_adapter_frontend_init(struct dvb_usb_adapter *adap)
{
int ret, i;
/* register all given adapter frontends */
for (i = 0; i < adap->props.num_frontends; i++) {
if (adap->props.fe[i].frontend_attach == NULL) {
err("strange: '%s' #%d,%d "
"doesn't want to attach a frontend.",
adap->dev->desc->name, adap->id, i);
return 0;
}
ret = adap->props.fe[i].frontend_attach(adap);
if (ret || adap->fe_adap[i].fe == NULL) {
/* only print error when there is no FE at all */
if (i == 0)
err("no frontend was attached by '%s'",
adap->dev->desc->name);
return 0;
}
adap->fe_adap[i].fe->id = i;
/* re-assign sleep and wakeup functions */
adap->fe_adap[i].fe_init = adap->fe_adap[i].fe->ops.init;
adap->fe_adap[i].fe->ops.init = dvb_usb_fe_wakeup;
adap->fe_adap[i].fe_sleep = adap->fe_adap[i].fe->ops.sleep;
adap->fe_adap[i].fe->ops.sleep = dvb_usb_fe_sleep;
if (dvb_register_frontend(&adap->dvb_adap, adap->fe_adap[i].fe)) {
err("Frontend %d registration failed.", i);
dvb_frontend_detach(adap->fe_adap[i].fe);
adap->fe_adap[i].fe = NULL;
/* In error case, do not try register more FEs,
* still leaving already registered FEs alive. */
if (i == 0)
return -ENODEV;
else
return 0;
}
/* only attach the tuner if the demod is there */
if (adap->props.fe[i].tuner_attach != NULL)
adap->props.fe[i].tuner_attach(adap);
adap->num_frontends_initialized++;
}
return 0;
}
int dvb_usb_adapter_frontend_exit(struct dvb_usb_adapter *adap)
{
int i = adap->num_frontends_initialized - 1;
/* unregister all given adapter frontends */
for (; i >= 0; i--) {
if (adap->fe_adap[i].fe != NULL) {
dvb_unregister_frontend(adap->fe_adap[i].fe);
dvb_frontend_detach(adap->fe_adap[i].fe);
}
}
adap->num_frontends_initialized = 0;
return 0;
}

146
drivers/media/dvb/dvb-usb/dvb_usb_firmware.c Normal file
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/* dvb-usb-firmware.c is part of the DVB USB library.
*
* Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@desy.de)
* see dvb-usb-init.c for copyright information.
*
* This file contains functions for downloading the firmware to Cypress FX 1 and 2 based devices.
*
* FIXME: This part does actually not belong to dvb-usb, but to the usb-subsystem.
*/
#include "dvb_usb_common.h"
#include <linux/usb.h>
struct usb_cypress_controller {
int id;
const char *name; /* name of the usb controller */
u16 cpu_cs_register; /* needs to be restarted, when the firmware has been downloaded. */
};
static struct usb_cypress_controller cypress[] = {
{ .id = DEVICE_SPECIFIC, .name = "Device specific", .cpu_cs_register = 0 },
{ .id = CYPRESS_AN2135, .name = "Cypress AN2135", .cpu_cs_register = 0x7f92 },
{ .id = CYPRESS_AN2235, .name = "Cypress AN2235", .cpu_cs_register = 0x7f92 },
{ .id = CYPRESS_FX2, .name = "Cypress FX2", .cpu_cs_register = 0xe600 },
};
/*
* load a firmware packet to the device
*/
static int usb_cypress_writemem(struct usb_device *udev,u16 addr,u8 *data, u8 len)
{
return usb_control_msg(udev, usb_sndctrlpipe(udev,0),
0xa0, USB_TYPE_VENDOR, addr, 0x00, data, len, 5000);
}
int usbv2_cypress_load_firmware(struct usb_device *udev, const struct firmware *fw, int type)
{
struct hexline hx;
u8 reset;
int ret,pos=0;
/* stop the CPU */
reset = 1;
if ((ret = usb_cypress_writemem(udev,cypress[type].cpu_cs_register,&reset,1)) != 1)
err("could not stop the USB controller CPU.");
while ((ret = dvb_usbv2_get_hexline(fw,&hx,&pos)) > 0) {
deb_fw("writing to address 0x%04x (buffer: 0x%02x %02x)\n",hx.addr,hx.len,hx.chk);
ret = usb_cypress_writemem(udev,hx.addr,hx.data,hx.len);
if (ret != hx.len) {
err("error while transferring firmware "
"(transferred size: %d, block size: %d)",
ret,hx.len);
ret = -EINVAL;
break;
}
}
if (ret < 0) {
err("firmware download failed at %d with %d",pos,ret);
return ret;
}
if (ret == 0) {
/* restart the CPU */
reset = 0;
if (ret || usb_cypress_writemem(udev,cypress[type].cpu_cs_register,&reset,1) != 1) {
err("could not restart the USB controller CPU.");
ret = -EINVAL;
}
} else
ret = -EIO;
return ret;
}
EXPORT_SYMBOL(usbv2_cypress_load_firmware);
int dvb_usb_download_firmware(struct usb_device *udev, struct dvb_usb_device_properties *props)
{
int ret;
const struct firmware *fw = NULL;
if ((ret = request_firmware(&fw, props->firmware, &udev->dev)) != 0) {
err("did not find the firmware file. (%s) "
"Please see linux/Documentation/dvb/ for more details on firmware-problems. (%d)",
props->firmware,ret);
return ret;
}
info("downloading firmware from file '%s'",props->firmware);
switch (props->usb_ctrl) {
case CYPRESS_AN2135:
case CYPRESS_AN2235:
case CYPRESS_FX2:
ret = usbv2_cypress_load_firmware(udev, fw, props->usb_ctrl);
break;
case DEVICE_SPECIFIC:
if (props->download_firmware)
ret = props->download_firmware(udev,fw);
else {
err("BUG: driver didn't specified a download_firmware-callback, although it claims to have a DEVICE_SPECIFIC one.");
ret = -EINVAL;
}
break;
default:
ret = -EINVAL;
break;
}
release_firmware(fw);
return ret;
}
int dvb_usbv2_get_hexline(const struct firmware *fw, struct hexline *hx,
int *pos)
{
u8 *b = (u8 *) &fw->data[*pos];
int data_offs = 4;
if (*pos >= fw->size)
return 0;
memset(hx,0,sizeof(struct hexline));
hx->len = b[0];
if ((*pos + hx->len + 4) >= fw->size)
return -EINVAL;
hx->addr = b[1] | (b[2] << 8);
hx->type = b[3];
if (hx->type == 0x04) {
/* b[4] and b[5] are the Extended linear address record data field */
hx->addr |= (b[4] << 24) | (b[5] << 16);
/* hx->len -= 2;
data_offs += 2; */
}
memcpy(hx->data,&b[data_offs],hx->len);
hx->chk = b[hx->len + data_offs];
*pos += hx->len + 5;
return *pos;
}
EXPORT_SYMBOL(dvb_usbv2_get_hexline);

43
drivers/media/dvb/dvb-usb/dvb_usb_i2c.c Normal file
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/* dvb-usb-i2c.c is part of the DVB USB library.
*
* Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@desy.de)
* see dvb-usb-init.c for copyright information.
*
* This file contains functions for (de-)initializing an I2C adapter.
*/
#include "dvb_usb_common.h"
int dvb_usb_i2c_init(struct dvb_usb_device *d)
{
int ret = 0;
if (!(d->props.caps & DVB_USB_IS_AN_I2C_ADAPTER))
return 0;
if (d->props.i2c_algo == NULL) {
err("no i2c algorithm specified");
return -EINVAL;
}
strlcpy(d->i2c_adap.name, d->desc->name, sizeof(d->i2c_adap.name));
d->i2c_adap.algo = d->props.i2c_algo;
d->i2c_adap.algo_data = NULL;
d->i2c_adap.dev.parent = &d->udev->dev;
i2c_set_adapdata(&d->i2c_adap, d);
if ((ret = i2c_add_adapter(&d->i2c_adap)) < 0)
err("could not add i2c adapter");
d->state |= DVB_USB_STATE_I2C;
return ret;
}
int dvb_usb_i2c_exit(struct dvb_usb_device *d)
{
if (d->state & DVB_USB_STATE_I2C)
i2c_del_adapter(&d->i2c_adap);
d->state &= ~DVB_USB_STATE_I2C;
return 0;
}

304
drivers/media/dvb/dvb-usb/dvb_usb_init.c Normal file
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/*
* DVB USB library - provides a generic interface for a DVB USB device driver.
*
* dvb-usb-init.c
*
* Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@desy.de)
*
* 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, version 2.
*
* see Documentation/dvb/README.dvb-usb for more information
*/
#include "dvb_usb_common.h"
/* debug */
int dvb_usb_debug;
module_param_named(debug, dvb_usb_debug, int, 0644);
MODULE_PARM_DESC(debug, "set debugging level (1=info,xfer=2,pll=4,ts=8,err=16,rc=32,fw=64,mem=128,uxfer=256 (or-able))." DVB_USB_DEBUG_STATUS);
int dvb_usb_disable_rc_polling;
module_param_named(disable_rc_polling, dvb_usb_disable_rc_polling, int, 0644);
MODULE_PARM_DESC(disable_rc_polling, "disable remote control polling (default: 0).");
static int dvb_usb_force_pid_filter_usage;
module_param_named(force_pid_filter_usage, dvb_usb_force_pid_filter_usage, int, 0444);
MODULE_PARM_DESC(force_pid_filter_usage, "force all dvb-usb-devices to use a PID filter, if any (default: 0).");
static int dvb_usb_adapter_init(struct dvb_usb_device *d, short *adapter_nrs)
{
struct dvb_usb_adapter *adap;
int ret, n, o;
for (n = 0; n < d->props.num_adapters; n++) {
adap = &d->adapter[n];
adap->dev = d;
adap->id = n;
memcpy(&adap->props, &d->props.adapter[n], sizeof(struct dvb_usb_adapter_properties));
for (o = 0; o < adap->props.num_frontends; o++) {
struct dvb_usb_adapter_fe_properties *props = &adap->props.fe[o];
/* speed - when running at FULL speed we need a HW PID filter */
if (d->udev->speed == USB_SPEED_FULL && !(props->caps & DVB_USB_ADAP_HAS_PID_FILTER)) {
err("This USB2.0 device cannot be run on a USB1.1 port. (it lacks a hardware PID filter)");
return -ENODEV;
}
if ((d->udev->speed == USB_SPEED_FULL && props->caps & DVB_USB_ADAP_HAS_PID_FILTER) ||
(props->caps & DVB_USB_ADAP_NEED_PID_FILTERING)) {
info("will use the device's hardware PID filter (table count: %d).", props->pid_filter_count);
adap->fe_adap[o].pid_filtering = 1;
adap->fe_adap[o].max_feed_count = props->pid_filter_count;
} else {
info("will pass the complete MPEG2 transport stream to the software demuxer.");
adap->fe_adap[o].pid_filtering = 0;
adap->fe_adap[o].max_feed_count = 255;
}
if (!adap->fe_adap[o].pid_filtering &&
dvb_usb_force_pid_filter_usage &&
props->caps & DVB_USB_ADAP_HAS_PID_FILTER) {
info("pid filter enabled by module option.");
adap->fe_adap[o].pid_filtering = 1;
adap->fe_adap[o].max_feed_count = props->pid_filter_count;
}
if (props->size_of_priv > 0) {
adap->fe_adap[o].priv = kzalloc(props->size_of_priv, GFP_KERNEL);
if (adap->fe_adap[o].priv == NULL) {
err("no memory for priv for adapter %d fe %d.", n, o);
return -ENOMEM;
}
}
}
if (adap->props.size_of_priv > 0) {
adap->priv = kzalloc(adap->props.size_of_priv, GFP_KERNEL);
if (adap->priv == NULL) {
err("no memory for priv for adapter %d.", n);
return -ENOMEM;
}
}
if ((ret = dvb_usb_adapter_stream_init(adap)) ||
(ret = dvb_usb_adapter_dvb_init(adap, adapter_nrs)) ||
(ret = dvb_usb_adapter_frontend_init(adap))) {
return ret;
}
/* use exclusive FE lock if there is multiple shared FEs */
if (adap->fe_adap[1].fe)
adap->dvb_adap.mfe_shared = 1;
d->num_adapters_initialized++;
d->state |= DVB_USB_STATE_DVB;
}
/*
* when reloading the driver w/o replugging the device
* sometimes a timeout occures, this helps
*/
if (d->props.generic_bulk_ctrl_endpoint != 0) {
usb_clear_halt(d->udev, usb_sndbulkpipe(d->udev, d->props.generic_bulk_ctrl_endpoint));
usb_clear_halt(d->udev, usb_rcvbulkpipe(d->udev, d->props.generic_bulk_ctrl_endpoint));
}
return 0;
}
static int dvb_usb_adapter_exit(struct dvb_usb_device *d)
{
int n;
for (n = 0; n < d->num_adapters_initialized; n++) {
dvb_usb_adapter_frontend_exit(&d->adapter[n]);
dvb_usb_adapter_dvb_exit(&d->adapter[n]);
dvb_usb_adapter_stream_exit(&d->adapter[n]);
kfree(d->adapter[n].priv);
}
d->num_adapters_initialized = 0;
d->state &= ~DVB_USB_STATE_DVB;
return 0;
}
/* general initialization functions */
static int dvb_usb_exit(struct dvb_usb_device *d)
{
deb_info("state before exiting everything: %x\n", d->state);
dvb_usb_remote_exit(d);
dvb_usb_adapter_exit(d);
dvb_usb_i2c_exit(d);
deb_info("state should be zero now: %x\n", d->state);
d->state = DVB_USB_STATE_INIT;
kfree(d->priv);
kfree(d);
return 0;
}
static int dvb_usb_init(struct dvb_usb_device *d, short *adapter_nums)
{
int ret = 0;
mutex_init(&d->usb_mutex);
mutex_init(&d->i2c_mutex);
d->state = DVB_USB_STATE_INIT;
if (d->props.size_of_priv > 0) {
d->priv = kzalloc(d->props.size_of_priv, GFP_KERNEL);
if (d->priv == NULL) {
err("no memory for priv in 'struct dvb_usb_device'");
return -ENOMEM;
}
}
/* check the capabilities and set appropriate variables */
dvb_usb_device_power_ctrl(d, 1);
if ((ret = dvb_usb_i2c_init(d)) ||
(ret = dvb_usb_adapter_init(d, adapter_nums))) {
dvb_usb_exit(d);
return ret;
}
if ((ret = dvb_usb_remote_init(d)))
err("could not initialize remote control.");
dvb_usb_device_power_ctrl(d, 0);
return 0;
}
/* determine the name and the state of the just found USB device */
static struct dvb_usb_device_description *dvb_usb_find_device(struct usb_device *udev, struct dvb_usb_device_properties *props, int *cold)
{
int i, j;
struct dvb_usb_device_description *desc = NULL;
*cold = -1;
for (i = 0; i < props->num_device_descs; i++) {
for (j = 0; j < DVB_USB_ID_MAX_NUM && props->devices[i].cold_ids[j] != NULL; j++) {
deb_info("check for cold %x %x\n", props->devices[i].cold_ids[j]->idVendor, props->devices[i].cold_ids[j]->idProduct);
if (props->devices[i].cold_ids[j]->idVendor == le16_to_cpu(udev->descriptor.idVendor) &&
props->devices[i].cold_ids[j]->idProduct == le16_to_cpu(udev->descriptor.idProduct)) {
*cold = 1;
desc = &props->devices[i];
break;
}
}
if (desc != NULL)
break;
for (j = 0; j < DVB_USB_ID_MAX_NUM && props->devices[i].warm_ids[j] != NULL; j++) {
deb_info("check for warm %x %x\n", props->devices[i].warm_ids[j]->idVendor, props->devices[i].warm_ids[j]->idProduct);
if (props->devices[i].warm_ids[j]->idVendor == le16_to_cpu(udev->descriptor.idVendor) &&
props->devices[i].warm_ids[j]->idProduct == le16_to_cpu(udev->descriptor.idProduct)) {
*cold = 0;
desc = &props->devices[i];
break;
}
}
}
if (desc != NULL && props->identify_state != NULL)
props->identify_state(udev, props, &desc, cold);
return desc;
}
int dvb_usb_device_power_ctrl(struct dvb_usb_device *d, int onoff)
{
if (onoff)
d->powered++;
else
d->powered--;
if (d->powered == 0 || (onoff && d->powered == 1)) { /* when switching from 1 to 0 or from 0 to 1 */
deb_info("power control: %d\n", onoff);
if (d->props.power_ctrl)
return d->props.power_ctrl(d, onoff);
}
return 0;
}
/*
* USB
*/
int dvb_usbv2_device_init(struct usb_interface *intf,
struct dvb_usb_device_properties *props,
struct module *owner, struct dvb_usb_device **du,
short *adapter_nums)
{
struct usb_device *udev = interface_to_usbdev(intf);
struct dvb_usb_device *d = NULL;
struct dvb_usb_device_description *desc = NULL;
int ret = -ENOMEM, cold = 0;
if (du != NULL)
*du = NULL;
if ((desc = dvb_usb_find_device(udev, props, &cold)) == NULL) {
deb_err("something went very wrong, device was not found in current device list - let's see what comes next.\n");
return -ENODEV;
}
if (cold) {
info("found a '%s' in cold state, will try to load a firmware", desc->name);
ret = dvb_usb_download_firmware(udev, props);
if (!props->no_reconnect || ret != 0)
return ret;
}
info("found a '%s' in warm state.", desc->name);
d = kzalloc(sizeof(struct dvb_usb_device), GFP_KERNEL);
if (d == NULL) {
err("no memory for 'struct dvb_usb_device'");
return -ENOMEM;
}
d->udev = udev;
memcpy(&d->props, props, sizeof(struct dvb_usb_device_properties));
d->desc = desc;
d->owner = owner;
usb_set_intfdata(intf, d);
if (du != NULL)
*du = d;
ret = dvb_usb_init(d, adapter_nums);
if (ret == 0)
info("%s successfully initialized and connected.", desc->name);
else
info("%s error while loading driver (%d)", desc->name, ret);
return ret;
}
EXPORT_SYMBOL(dvb_usbv2_device_init);
void dvb_usbv2_device_exit(struct usb_interface *intf)
{
struct dvb_usb_device *d = usb_get_intfdata(intf);
const char *name = "generic DVB-USB module";
usb_set_intfdata(intf, NULL);
if (d != NULL && d->desc != NULL) {
name = d->desc->name;
dvb_usb_exit(d);
}
info("%s successfully deinitialized and disconnected.", name);
}
EXPORT_SYMBOL(dvb_usbv2_device_exit);
MODULE_VERSION("1.0");
MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@desy.de>");
MODULE_DESCRIPTION("A library module containing commonly used USB and DVB function USB DVB devices");
MODULE_LICENSE("GPL");

391
drivers/media/dvb/dvb-usb/dvb_usb_remote.c Normal file
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/* dvb-usb-remote.c is part of the DVB USB library.
*
* Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@desy.de)
* see dvb-usb-init.c for copyright information.
*
* This file contains functions for initializing the input-device and for handling remote-control-queries.
*/
#include "dvb_usb_common.h"
#include <linux/usb/input.h>
static unsigned int
legacy_dvb_usb_get_keymap_index(const struct input_keymap_entry *ke,
struct rc_map_table *keymap,
unsigned int keymap_size)
{
unsigned int index;
unsigned int scancode;
if (ke->flags & INPUT_KEYMAP_BY_INDEX) {
index = ke->index;
} else {
if (input_scancode_to_scalar(ke, &scancode))
return keymap_size;
/* See if we can match the raw key code. */
for (index = 0; index < keymap_size; index++)
if (keymap[index].scancode == scancode)
break;
/* See if there is an unused hole in the map */
if (index >= keymap_size) {
for (index = 0; index < keymap_size; index++) {
if (keymap[index].keycode == KEY_RESERVED ||
keymap[index].keycode == KEY_UNKNOWN) {
break;
}
}
}
}
return index;
}
static int legacy_dvb_usb_getkeycode(struct input_dev *dev,
struct input_keymap_entry *ke)
{
struct dvb_usb_device *d = input_get_drvdata(dev);
struct rc_map_table *keymap = d->props.rc.legacy.rc_map_table;
unsigned int keymap_size = d->props.rc.legacy.rc_map_size;
unsigned int index;
index = legacy_dvb_usb_get_keymap_index(ke, keymap, keymap_size);
if (index >= keymap_size)
return -EINVAL;
ke->keycode = keymap[index].keycode;
if (ke->keycode == KEY_UNKNOWN)
ke->keycode = KEY_RESERVED;
ke->len = sizeof(keymap[index].scancode);
memcpy(&ke->scancode, &keymap[index].scancode, ke->len);
ke->index = index;
return 0;
}
static int legacy_dvb_usb_setkeycode(struct input_dev *dev,
const struct input_keymap_entry *ke,
unsigned int *old_keycode)
{
struct dvb_usb_device *d = input_get_drvdata(dev);
struct rc_map_table *keymap = d->props.rc.legacy.rc_map_table;
unsigned int keymap_size = d->props.rc.legacy.rc_map_size;
unsigned int index;
index = legacy_dvb_usb_get_keymap_index(ke, keymap, keymap_size);
/*
* FIXME: Currently, it is not possible to increase the size of
* scancode table. For it to happen, one possibility
* would be to allocate a table with key_map_size + 1,
* copying data, appending the new key on it, and freeing
* the old one - or maybe just allocating some spare space
*/
if (index >= keymap_size)
return -EINVAL;
*old_keycode = keymap[index].keycode;
keymap->keycode = ke->keycode;
__set_bit(ke->keycode, dev->keybit);
if (*old_keycode != KEY_RESERVED) {
__clear_bit(*old_keycode, dev->keybit);
for (index = 0; index < keymap_size; index++) {
if (keymap[index].keycode == *old_keycode) {
__set_bit(*old_keycode, dev->keybit);
break;
}
}
}
return 0;
}
/* Remote-control poll function - called every dib->rc_query_interval ms to see
* whether the remote control has received anything.
*
* TODO: Fix the repeat rate of the input device.
*/
static void legacy_dvb_usb_read_remote_control(struct work_struct *work)
{
struct dvb_usb_device *d =
container_of(work, struct dvb_usb_device, rc_query_work.work);
u32 event;
int state;
/* TODO: need a lock here. We can simply skip checking for the remote control
if we're busy. */
/* when the parameter has been set to 1 via sysfs while the driver was running */
if (dvb_usb_disable_rc_polling)
return;
if (d->props.rc.legacy.rc_query(d,&event,&state)) {
err("error while querying for an remote control event.");
goto schedule;
}
switch (state) {
case REMOTE_NO_KEY_PRESSED:
break;
case REMOTE_KEY_PRESSED:
deb_rc("key pressed\n");
d->last_event = event;
case REMOTE_KEY_REPEAT:
deb_rc("key repeated\n");
input_event(d->input_dev, EV_KEY, event, 1);
input_sync(d->input_dev);
input_event(d->input_dev, EV_KEY, d->last_event, 0);
input_sync(d->input_dev);
break;
default:
break;
}
/* improved repeat handling ???
switch (state) {
case REMOTE_NO_KEY_PRESSED:
deb_rc("NO KEY PRESSED\n");
if (d->last_state != REMOTE_NO_KEY_PRESSED) {
deb_rc("releasing event %d\n",d->last_event);
input_event(d->rc_input_dev, EV_KEY, d->last_event, 0);
input_sync(d->rc_input_dev);
}
d->last_state = REMOTE_NO_KEY_PRESSED;
d->last_event = 0;
break;
case REMOTE_KEY_PRESSED:
deb_rc("KEY PRESSED\n");
deb_rc("pressing event %d\n",event);
input_event(d->rc_input_dev, EV_KEY, event, 1);
input_sync(d->rc_input_dev);
d->last_event = event;
d->last_state = REMOTE_KEY_PRESSED;
break;
case REMOTE_KEY_REPEAT:
deb_rc("KEY_REPEAT\n");
if (d->last_state != REMOTE_NO_KEY_PRESSED) {
deb_rc("repeating event %d\n",d->last_event);
input_event(d->rc_input_dev, EV_KEY, d->last_event, 2);
input_sync(d->rc_input_dev);
d->last_state = REMOTE_KEY_REPEAT;
}
default:
break;
}
*/
schedule:
schedule_delayed_work(&d->rc_query_work,msecs_to_jiffies(d->props.rc.legacy.rc_interval));
}
static int legacy_dvb_usb_remote_init(struct dvb_usb_device *d)
{
int i, err, rc_interval;
struct input_dev *input_dev;
input_dev = input_allocate_device();
if (!input_dev)
return -ENOMEM;
input_dev->evbit[0] = BIT_MASK(EV_KEY);
input_dev->name = "IR-receiver inside an USB DVB receiver";
input_dev->phys = d->rc_phys;
usb_to_input_id(d->udev, &input_dev->id);
input_dev->dev.parent = &d->udev->dev;
d->input_dev = input_dev;
d->rc_dev = NULL;
input_dev->getkeycode = legacy_dvb_usb_getkeycode;
input_dev->setkeycode = legacy_dvb_usb_setkeycode;
/* set the bits for the keys */
deb_rc("key map size: %d\n", d->props.rc.legacy.rc_map_size);
for (i = 0; i < d->props.rc.legacy.rc_map_size; i++) {
deb_rc("setting bit for event %d item %d\n",
d->props.rc.legacy.rc_map_table[i].keycode, i);
set_bit(d->props.rc.legacy.rc_map_table[i].keycode, input_dev->keybit);
}
/* setting these two values to non-zero, we have to manage key repeats */
input_dev->rep[REP_PERIOD] = d->props.rc.legacy.rc_interval;
input_dev->rep[REP_DELAY] = d->props.rc.legacy.rc_interval + 150;
input_set_drvdata(input_dev, d);
err = input_register_device(input_dev);
if (err)
input_free_device(input_dev);
rc_interval = d->props.rc.legacy.rc_interval;
INIT_DELAYED_WORK(&d->rc_query_work, legacy_dvb_usb_read_remote_control);
info("schedule remote query interval to %d msecs.", rc_interval);
schedule_delayed_work(&d->rc_query_work,
msecs_to_jiffies(rc_interval));
d->state |= DVB_USB_STATE_REMOTE;
return err;
}
/* Remote-control poll function - called every dib->rc_query_interval ms to see
* whether the remote control has received anything.
*
* TODO: Fix the repeat rate of the input device.
*/
static void dvb_usb_read_remote_control(struct work_struct *work)
{
struct dvb_usb_device *d =
container_of(work, struct dvb_usb_device, rc_query_work.work);
int err;
/* TODO: need a lock here. We can simply skip checking for the remote control
if we're busy. */
/* when the parameter has been set to 1 via sysfs while the
* driver was running, or when bulk mode is enabled after IR init
*/
if (dvb_usb_disable_rc_polling || d->props.rc.core.bulk_mode)
return;
err = d->props.rc.core.rc_query(d);
if (err)
err("error %d while querying for an remote control event.", err);
schedule_delayed_work(&d->rc_query_work,
msecs_to_jiffies(d->props.rc.core.rc_interval));
}
static int rc_core_dvb_usb_remote_init(struct dvb_usb_device *d)
{
int err, rc_interval;
struct rc_dev *dev;
dev = rc_allocate_device();
if (!dev)
return -ENOMEM;
dev->driver_name = d->props.rc.core.module_name;
dev->map_name = d->props.rc.core.rc_codes;
dev->change_protocol = d->props.rc.core.change_protocol;
dev->allowed_protos = d->props.rc.core.allowed_protos;
dev->driver_type = d->props.rc.core.driver_type;
usb_to_input_id(d->udev, &dev->input_id);
dev->input_name = "IR-receiver inside an USB DVB receiver";
dev->input_phys = d->rc_phys;
dev->dev.parent = &d->udev->dev;
dev->priv = d;
err = rc_register_device(dev);
if (err < 0) {
rc_free_device(dev);
return err;
}
d->input_dev = NULL;
d->rc_dev = dev;
if (!d->props.rc.core.rc_query || d->props.rc.core.bulk_mode)
return 0;
/* Polling mode - initialize a work queue for handling it */
INIT_DELAYED_WORK(&d->rc_query_work, dvb_usb_read_remote_control);
rc_interval = d->props.rc.core.rc_interval;
info("schedule remote query interval to %d msecs.", rc_interval);
schedule_delayed_work(&d->rc_query_work,
msecs_to_jiffies(rc_interval));
return 0;
}
int dvb_usb_remote_init(struct dvb_usb_device *d)
{
int err;
if (dvb_usb_disable_rc_polling)
return 0;
if (d->props.rc.legacy.rc_map_table && d->props.rc.legacy.rc_query)
d->props.rc.mode = DVB_RC_LEGACY;
else if (d->props.rc.core.rc_codes)
d->props.rc.mode = DVB_RC_CORE;
else
return 0;
usb_make_path(d->udev, d->rc_phys, sizeof(d->rc_phys));
strlcat(d->rc_phys, "/ir0", sizeof(d->rc_phys));
/* Start the remote-control polling. */
if (d->props.rc.legacy.rc_interval < 40)
d->props.rc.legacy.rc_interval = 100; /* default */
if (d->props.rc.mode == DVB_RC_LEGACY)
err = legacy_dvb_usb_remote_init(d);
else
err = rc_core_dvb_usb_remote_init(d);
if (err)
return err;
d->state |= DVB_USB_STATE_REMOTE;
return 0;
}
int dvb_usb_remote_exit(struct dvb_usb_device *d)
{
if (d->state & DVB_USB_STATE_REMOTE) {
cancel_delayed_work_sync(&d->rc_query_work);
if (d->props.rc.mode == DVB_RC_LEGACY)
input_unregister_device(d->input_dev);
else
rc_unregister_device(d->rc_dev);
}
d->state &= ~DVB_USB_STATE_REMOTE;
return 0;
}
#define DVB_USB_RC_NEC_EMPTY 0x00
#define DVB_USB_RC_NEC_KEY_PRESSED 0x01
#define DVB_USB_RC_NEC_KEY_REPEATED 0x02
int dvb_usbv2_nec_rc_key_to_event(struct dvb_usb_device *d,
u8 keybuf[5], u32 *event, int *state)
{
int i;
struct rc_map_table *keymap = d->props.rc.legacy.rc_map_table;
*event = 0;
*state = REMOTE_NO_KEY_PRESSED;
switch (keybuf[0]) {
case DVB_USB_RC_NEC_EMPTY:
break;
case DVB_USB_RC_NEC_KEY_PRESSED:
if ((u8) ~keybuf[1] != keybuf[2] ||
(u8) ~keybuf[3] != keybuf[4]) {
deb_err("remote control checksum failed.\n");
break;
}
/* See if we can match the raw key code. */
for (i = 0; i < d->props.rc.legacy.rc_map_size; i++)
if (rc5_custom(&keymap[i]) == keybuf[1] &&
rc5_data(&keymap[i]) == keybuf[3]) {
*event = keymap[i].keycode;
*state = REMOTE_KEY_PRESSED;
return 0;
}
deb_err("key mapping failed - no appropriate key found in keymapping\n");
break;
case DVB_USB_RC_NEC_KEY_REPEATED:
*state = REMOTE_KEY_REPEAT;
break;
default:
deb_err("unknown type of remote status: %d\n",keybuf[0]);
break;
}
return 0;
}
EXPORT_SYMBOL(dvb_usbv2_nec_rc_key_to_event);

121
drivers/media/dvb/dvb-usb/dvb_usb_urb.c Normal file
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/* dvb-usb-urb.c is part of the DVB USB library.
*
* Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@desy.de)
* see dvb-usb-init.c for copyright information.
*
* This file keeps functions for initializing and handling the
* USB and URB stuff.
*/
#include "dvb_usb_common.h"
int dvb_usbv2_generic_rw(struct dvb_usb_device *d, u8 *wbuf, u16 wlen, u8 *rbuf,
u16 rlen, int delay_ms)
{
int actlen,ret = -ENOMEM;
if (!d || wbuf == NULL || wlen == 0)
return -EINVAL;
if (d->props.generic_bulk_ctrl_endpoint == 0) {
err("endpoint for generic control not specified.");
return -EINVAL;
}
if ((ret = mutex_lock_interruptible(&d->usb_mutex)))
return ret;
deb_xfer(">>> ");
debug_dump(wbuf,wlen,deb_xfer);
ret = usb_bulk_msg(d->udev,usb_sndbulkpipe(d->udev,
d->props.generic_bulk_ctrl_endpoint), wbuf,wlen,&actlen,
2000);
if (ret)
err("bulk message failed: %d (%d/%d)",ret,wlen,actlen);
else
ret = actlen != wlen ? -1 : 0;
/* an answer is expected, and no error before */
if (!ret && rbuf && rlen) {
if (delay_ms)
msleep(delay_ms);
ret = usb_bulk_msg(d->udev,usb_rcvbulkpipe(d->udev,
d->props.generic_bulk_ctrl_endpoint_response ?
d->props.generic_bulk_ctrl_endpoint_response :
d->props.generic_bulk_ctrl_endpoint),rbuf,rlen,&actlen,
2000);
if (ret)
err("recv bulk message failed: %d",ret);
else {
deb_xfer("<<< ");
debug_dump(rbuf,actlen,deb_xfer);
}
}
mutex_unlock(&d->usb_mutex);
return ret;
}
EXPORT_SYMBOL(dvb_usbv2_generic_rw);
int dvb_usbv2_generic_write(struct dvb_usb_device *d, u8 *buf, u16 len)
{
return dvb_usbv2_generic_rw(d,buf,len,NULL,0,0);
}
EXPORT_SYMBOL(dvb_usbv2_generic_write);
static void dvb_usb_data_complete(struct usb_data_stream *stream, u8 *buffer, size_t length)
{
struct dvb_usb_adapter *adap = stream->user_priv;
if (adap->feedcount > 0 && adap->state & DVB_USB_ADAP_STATE_DVB)
dvb_dmx_swfilter(&adap->demux, buffer, length);
}
static void dvb_usb_data_complete_204(struct usb_data_stream *stream, u8 *buffer, size_t length)
{
struct dvb_usb_adapter *adap = stream->user_priv;
if (adap->feedcount > 0 && adap->state & DVB_USB_ADAP_STATE_DVB)
dvb_dmx_swfilter_204(&adap->demux, buffer, length);
}
static void dvb_usb_data_complete_raw(struct usb_data_stream *stream,
u8 *buffer, size_t length)
{
struct dvb_usb_adapter *adap = stream->user_priv;
if (adap->feedcount > 0 && adap->state & DVB_USB_ADAP_STATE_DVB)
dvb_dmx_swfilter_raw(&adap->demux, buffer, length);
}
int dvb_usb_adapter_stream_init(struct dvb_usb_adapter *adap)
{
int i, ret = 0;
for (i = 0; i < adap->props.num_frontends; i++) {
adap->fe_adap[i].stream.udev = adap->dev->udev;
if (adap->props.fe[i].caps & DVB_USB_ADAP_RECEIVES_204_BYTE_TS)
adap->fe_adap[i].stream.complete =
dvb_usb_data_complete_204;
else
if (adap->props.fe[i].caps & DVB_USB_ADAP_RECEIVES_RAW_PAYLOAD)
adap->fe_adap[i].stream.complete =
dvb_usb_data_complete_raw;
else
adap->fe_adap[i].stream.complete = dvb_usb_data_complete;
adap->fe_adap[i].stream.user_priv = adap;
ret = usb_urb_init(&adap->fe_adap[i].stream,
&adap->props.fe[i].stream);
if (ret < 0)
break;
}
return ret;
}
int dvb_usb_adapter_stream_exit(struct dvb_usb_adapter *adap)
{
int i;
for (i = 0; i < adap->props.num_frontends; i++)
usb_urb_exit(&adap->fe_adap[i].stream);
return 0;
}

254
drivers/media/dvb/dvb-usb/usb_urb.c Normal file
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/* usb-urb.c is part of the DVB USB library.
*
* Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@desy.de)
* see dvb-usb-init.c for copyright information.
*
* This file keeps functions for initializing and handling the
* BULK and ISOC USB data transfers in a generic way.
* Can be used for DVB-only and also, that's the plan, for
* Hybrid USB devices (analog and DVB).
*/
#include "dvb_usb_common.h"
/* URB stuff for streaming */
static void usb_urb_complete(struct urb *urb)
{
struct usb_data_stream *stream = urb->context;
int ptype = usb_pipetype(urb->pipe);
int i;
u8 *b;
deb_uxfer("'%s' urb completed. status: %d, length: %d/%d, pack_num: %d, errors: %d\n",
ptype == PIPE_ISOCHRONOUS ? "isoc" : "bulk",
urb->status,urb->actual_length,urb->transfer_buffer_length,
urb->number_of_packets,urb->error_count);
switch (urb->status) {
case 0: /* success */
case -ETIMEDOUT: /* NAK */
break;
case -ECONNRESET: /* kill */
case -ENOENT:
case -ESHUTDOWN:
return;
default: /* error */
deb_ts("urb completition error %d.\n", urb->status);
break;
}
b = (u8 *) urb->transfer_buffer;
switch (ptype) {
case PIPE_ISOCHRONOUS:
for (i = 0; i < urb->number_of_packets; i++) {
if (urb->iso_frame_desc[i].status != 0)
deb_ts("iso frame descriptor has an error: %d\n",urb->iso_frame_desc[i].status);
else if (urb->iso_frame_desc[i].actual_length > 0)
stream->complete(stream, b + urb->iso_frame_desc[i].offset, urb->iso_frame_desc[i].actual_length);
urb->iso_frame_desc[i].status = 0;
urb->iso_frame_desc[i].actual_length = 0;
}
debug_dump(b,20,deb_uxfer);
break;
case PIPE_BULK:
if (urb->actual_length > 0)
stream->complete(stream, b, urb->actual_length);
break;
default:
err("unknown endpoint type in completition handler.");
return;
}
usb_submit_urb(urb,GFP_ATOMIC);
}
int usb_urb_kill(struct usb_data_stream *stream)
{
int i;
for (i = 0; i < stream->urbs_submitted; i++) {
deb_ts("killing URB no. %d.\n",i);
/* stop the URB */
usb_kill_urb(stream->urb_list[i]);
}
stream->urbs_submitted = 0;
return 0;
}
int usb_urb_submit(struct usb_data_stream *stream)
{
int i,ret;
for (i = 0; i < stream->urbs_initialized; i++) {
deb_ts("submitting URB no. %d\n",i);
if ((ret = usb_submit_urb(stream->urb_list[i],GFP_ATOMIC))) {
err("could not submit URB no. %d - get them all back",i);
usb_urb_kill(stream);
return ret;
}
stream->urbs_submitted++;
}
return 0;
}
static int usb_free_stream_buffers(struct usb_data_stream *stream)
{
if (stream->state & USB_STATE_URB_BUF) {
while (stream->buf_num) {
stream->buf_num--;
deb_mem("freeing buffer %d\n",stream->buf_num);
usb_free_coherent(stream->udev, stream->buf_size,
stream->buf_list[stream->buf_num],
stream->dma_addr[stream->buf_num]);
}
}
stream->state &= ~USB_STATE_URB_BUF;
return 0;
}
static int usb_allocate_stream_buffers(struct usb_data_stream *stream, int num, unsigned long size)
{
stream->buf_num = 0;
stream->buf_size = size;
deb_mem("all in all I will use %lu bytes for streaming\n",num*size);
for (stream->buf_num = 0; stream->buf_num < num; stream->buf_num++) {
deb_mem("allocating buffer %d\n",stream->buf_num);
if (( stream->buf_list[stream->buf_num] =
usb_alloc_coherent(stream->udev, size, GFP_ATOMIC,
&stream->dma_addr[stream->buf_num]) ) == NULL) {
deb_mem("not enough memory for urb-buffer allocation.\n");
usb_free_stream_buffers(stream);
return -ENOMEM;
}
deb_mem("buffer %d: %p (dma: %Lu)\n",
stream->buf_num,
stream->buf_list[stream->buf_num], (long long)stream->dma_addr[stream->buf_num]);
memset(stream->buf_list[stream->buf_num],0,size);
stream->state |= USB_STATE_URB_BUF;
}
deb_mem("allocation successful\n");
return 0;
}
static int usb_bulk_urb_init(struct usb_data_stream *stream)
{
int i, j;
if ((i = usb_allocate_stream_buffers(stream,stream->props.count,
stream->props.u.bulk.buffersize)) < 0)
return i;
/* allocate the URBs */
for (i = 0; i < stream->props.count; i++) {
stream->urb_list[i] = usb_alloc_urb(0, GFP_ATOMIC);
if (!stream->urb_list[i]) {
deb_mem("not enough memory for urb_alloc_urb!.\n");
for (j = 0; j < i; j++)
usb_free_urb(stream->urb_list[j]);
return -ENOMEM;
}
usb_fill_bulk_urb( stream->urb_list[i], stream->udev,
usb_rcvbulkpipe(stream->udev,stream->props.endpoint),
stream->buf_list[i],
stream->props.u.bulk.buffersize,
usb_urb_complete, stream);
stream->urb_list[i]->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
stream->urb_list[i]->transfer_dma = stream->dma_addr[i];
stream->urbs_initialized++;
}
return 0;
}
static int usb_isoc_urb_init(struct usb_data_stream *stream)
{
int i,j;
if ((i = usb_allocate_stream_buffers(stream,stream->props.count,
stream->props.u.isoc.framesize*stream->props.u.isoc.framesperurb)) < 0)
return i;
/* allocate the URBs */
for (i = 0; i < stream->props.count; i++) {
struct urb *urb;
int frame_offset = 0;
stream->urb_list[i] = usb_alloc_urb(stream->props.u.isoc.framesperurb, GFP_ATOMIC);
if (!stream->urb_list[i]) {
deb_mem("not enough memory for urb_alloc_urb!\n");
for (j = 0; j < i; j++)
usb_free_urb(stream->urb_list[j]);
return -ENOMEM;
}
urb = stream->urb_list[i];
urb->dev = stream->udev;
urb->context = stream;
urb->complete = usb_urb_complete;
urb->pipe = usb_rcvisocpipe(stream->udev,stream->props.endpoint);
urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
urb->interval = stream->props.u.isoc.interval;
urb->number_of_packets = stream->props.u.isoc.framesperurb;
urb->transfer_buffer_length = stream->buf_size;
urb->transfer_buffer = stream->buf_list[i];
urb->transfer_dma = stream->dma_addr[i];
for (j = 0; j < stream->props.u.isoc.framesperurb; j++) {
urb->iso_frame_desc[j].offset = frame_offset;
urb->iso_frame_desc[j].length = stream->props.u.isoc.framesize;
frame_offset += stream->props.u.isoc.framesize;
}
stream->urbs_initialized++;
}
return 0;
}
int usb_urb_init(struct usb_data_stream *stream, struct usb_data_stream_properties *props)
{
if (stream == NULL || props == NULL)
return -EINVAL;
memcpy(&stream->props, props, sizeof(*props));
usb_clear_halt(stream->udev,usb_rcvbulkpipe(stream->udev,stream->props.endpoint));
if (stream->complete == NULL) {
err("there is no data callback - this doesn't make sense.");
return -EINVAL;
}
switch (stream->props.type) {
case USB_BULK:
return usb_bulk_urb_init(stream);
case USB_ISOC:
return usb_isoc_urb_init(stream);
default:
err("unknown URB-type for data transfer.");
return -EINVAL;
}
}
int usb_urb_exit(struct usb_data_stream *stream)
{
int i;
usb_urb_kill(stream);
for (i = 0; i < stream->urbs_initialized; i++) {
if (stream->urb_list[i] != NULL) {
deb_mem("freeing URB no. %d.\n",i);
/* free the URBs */
usb_free_urb(stream->urb_list[i]);
}
}
stream->urbs_initialized = 0;
usb_free_stream_buffers(stream);
return 0;
}