提交 483dfdb6 编写于 作者: T Thierry MERLE 提交者: Mauro Carvalho Chehab

V4L/DVB (4937): Usbvision cleanup and code reorganization

- removal of overlay stuff
- reorganization of functions in 3 files:
    * usbvision-i2c for I2C-related stuff
    * usbvision-video for v4l2 entry points
    * usbvision-core for all peripheral controls and utilities
Signed-off-by: NThierry MERLE <thierry.merle@free.fr>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
上级 d8159a36
usbvision-objs := usbvision-core.o usbvision-i2c.o usbvision-cards.o
usbvision-objs := usbvision-core.o usbvision-video.o usbvision-i2c.o usbvision-cards.o
obj-$(CONFIG_VIDEO_USBVISION) += usbvision.o
......
......@@ -30,7 +30,6 @@
#include "usbvision.h"
/* Supported Devices: A table for usbvision.c*/
struct usbvision_device_data_st usbvision_device_data[] = {
{0xFFF0, 0xFFF0, -1, CODEC_SAA7111, 3, V4L2_STD_NTSC, 1, 1, 1, 1, TUNER_PHILIPS_NTSC_M, -1, -1, -1, -1, -1, "Custom Dummy USBVision Device"},
{0x0A6F, 0x0400, -1, CODEC_SAA7113, 4, V4L2_STD_NTSC, 1, 0, 1, 0, 0, -1, -1, -1, -1, -1, "Xanboo"},
......
......@@ -37,16 +37,18 @@
#include <linux/sched.h>
#include <linux/usb.h>
#include <linux/i2c.h>
#include "usbvision-i2c.h"
#include "usbvision.h"
static int debug_i2c_usb = 0;
#define DBG_I2C 1<<0
#define DBG_ALGO 1<<1
#if defined(module_param) // Showing parameters under SYSFS
module_param (debug_i2c_usb, int, 0444); // debug_i2c_usb mode of the device driver
#else
MODULE_PARM(debug_i2c_usb, "i"); // debug_i2c_usb mode of the device driver
#endif
static int i2c_debug = 0;
module_param (i2c_debug, int, 0644); // debug_i2c_usb mode of the device driver
MODULE_PARM_DESC(i2c_debug, "enable debug messages [i2c]");
#define PDEBUG(level, fmt, args...) \
if (i2c_debug & (level)) info("[%s:%d] " fmt, __PRETTY_FUNCTION__, __LINE__ , ## args)
static inline int try_write_address(struct i2c_adapter *i2c_adap,
unsigned char addr, int retries)
......@@ -67,11 +69,9 @@ static inline int try_write_address(struct i2c_adapter *i2c_adap,
break;
udelay(adap->udelay);
}
if (debug_i2c_usb) {
if (i) {
info("%s: Needed %d retries for address %#2x", __FUNCTION__, i, addr);
info("%s: Maybe there's no device at this address", __FUNCTION__);
}
if (i) {
PDEBUG(DBG_ALGO,"Needed %d retries for address %#2x", i, addr);
PDEBUG(DBG_ALGO,"Maybe there's no device at this address");
}
return ret;
}
......@@ -94,11 +94,9 @@ static inline int try_read_address(struct i2c_adapter *i2c_adap,
break;
udelay(adap->udelay);
}
if (debug_i2c_usb) {
if (i) {
info("%s: Needed %d retries for address %#2x", __FUNCTION__, i, addr);
info("%s: Maybe there's no device at this address", __FUNCTION__);
}
if (i) {
PDEBUG(DBG_ALGO,"Needed %d retries for address %#2x", i, addr);
PDEBUG(DBG_ALGO,"Maybe there's no device at this address");
}
return ret;
}
......@@ -166,9 +164,7 @@ usb_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg msgs[], int num)
pmsg = &msgs[i];
ret = usb_find_address(i2c_adap, pmsg, i2c_adap->retries, &addr);
if (ret != 0) {
if (debug_i2c_usb) {
info("%s: got NAK from device, message #%d\n", __FUNCTION__, i);
}
PDEBUG(DBG_ALGO,"got NAK from device, message #%d", i);
return (ret < 0) ? ret : -EREMOTEIO;
}
......@@ -215,6 +211,9 @@ static struct i2c_algorithm i2c_usb_algo = {
*/
int usbvision_i2c_usb_add_bus(struct i2c_adapter *adap)
{
PDEBUG(DBG_I2C, "I2C debugging is enabled [i2c]");
PDEBUG(DBG_ALGO, "ALGO debugging is enabled [i2c]");
/* register new adapter to i2c module... */
adap->algo = &i2c_usb_algo;
......@@ -222,17 +221,9 @@ int usbvision_i2c_usb_add_bus(struct i2c_adapter *adap)
adap->timeout = 100; /* default values, should */
adap->retries = 3; /* be replaced by defines */
#ifdef MODULE
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 4, 21)
MOD_INC_USE_COUNT;
#endif
#endif
i2c_add_adapter(adap);
if (debug_i2c_usb) {
info("i2c bus for %s registered", adap->name);
}
PDEBUG(DBG_ALGO,"i2c bus for %s registered", adap->name);
return 0;
}
......@@ -243,17 +234,338 @@ int usbvision_i2c_usb_del_bus(struct i2c_adapter *adap)
i2c_del_adapter(adap);
if (debug_i2c_usb) {
info("i2c bus for %s unregistered", adap->name);
PDEBUG(DBG_ALGO,"i2c bus for %s unregistered", adap->name);
return 0;
}
/* ----------------------------------------------------------------------- */
/* usbvision specific I2C functions */
/* ----------------------------------------------------------------------- */
static struct i2c_adapter i2c_adap_template;
static struct i2c_algo_usb_data i2c_algo_template;
static struct i2c_client i2c_client_template;
int usbvision_init_i2c(struct usb_usbvision *usbvision)
{
memcpy(&usbvision->i2c_adap, &i2c_adap_template,
sizeof(struct i2c_adapter));
memcpy(&usbvision->i2c_algo, &i2c_algo_template,
sizeof(struct i2c_algo_usb_data));
memcpy(&usbvision->i2c_client, &i2c_client_template,
sizeof(struct i2c_client));
sprintf(usbvision->i2c_adap.name + strlen(usbvision->i2c_adap.name),
" #%d", usbvision->vdev->minor & 0x1f);
PDEBUG(DBG_I2C,"Adaptername: %s", usbvision->i2c_adap.name);
i2c_set_adapdata(&usbvision->i2c_adap, usbvision);
i2c_set_clientdata(&usbvision->i2c_client, usbvision);
i2c_set_algo_usb_data(&usbvision->i2c_algo, usbvision);
usbvision->i2c_adap.algo_data = &usbvision->i2c_algo;
usbvision->i2c_client.adapter = &usbvision->i2c_adap;
if (usbvision_write_reg(usbvision, USBVISION_SER_MODE, USBVISION_IIC_LRNACK) < 0) {
printk(KERN_ERR "usbvision_init_i2c: can't write reg\n");
return -EBUSY;
}
#ifdef CONFIG_MODULES
/* Request the load of the i2c modules we need */
switch (usbvision_device_data[usbvision->DevModel].Codec) {
case CODEC_SAA7113:
request_module("saa7115");
break;
case CODEC_SAA7111:
request_module("saa7115");
break;
}
if (usbvision_device_data[usbvision->DevModel].Tuner == 1) {
request_module("tuner");
}
#ifdef MODULE
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 4, 21)
MOD_DEC_USE_COUNT;
#endif
#endif
return usbvision_i2c_usb_add_bus(&usbvision->i2c_adap);
}
void call_i2c_clients(struct usb_usbvision *usbvision, unsigned int cmd,
void *arg)
{
BUG_ON(NULL == usbvision->i2c_adap.algo_data);
i2c_clients_command(&usbvision->i2c_adap, cmd, arg);
}
static int attach_inform(struct i2c_client *client)
{
struct usb_usbvision *usbvision;
usbvision = (struct usb_usbvision *)i2c_get_adapdata(client->adapter);
switch (client->addr << 1) {
case 0x43:
case 0x4b:
{
struct tuner_setup tun_setup;
tun_setup.mode_mask = T_ANALOG_TV | T_RADIO;
tun_setup.type = TUNER_TDA9887;
tun_setup.addr = client->addr;
call_i2c_clients(usbvision, TUNER_SET_TYPE_ADDR, &tun_setup);
break;
}
case 0x42:
PDEBUG(DBG_I2C,"attach_inform: saa7114 detected.");
break;
case 0x4a:
PDEBUG(DBG_I2C,"attach_inform: saa7113 detected.");
break;
case 0xa0:
PDEBUG(DBG_I2C,"attach_inform: eeprom detected.");
break;
default:
{
struct tuner_setup tun_setup;
PDEBUG(DBG_I2C,"attach inform: detected I2C address %x", client->addr << 1);
usbvision->tuner_addr = client->addr;
if ((usbvision->have_tuner) && (usbvision->tuner_type != -1)) {
tun_setup.mode_mask = T_ANALOG_TV | T_RADIO;
tun_setup.type = usbvision->tuner_type;
tun_setup.addr = usbvision->tuner_addr;
call_i2c_clients(usbvision, TUNER_SET_TYPE_ADDR, &tun_setup);
}
}
break;
}
return 0;
}
static int detach_inform(struct i2c_client *client)
{
struct usb_usbvision *usbvision;
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
usbvision = (struct usb_usbvision *)client->adapter->data;
#else
usbvision = (struct usb_usbvision *)i2c_get_adapdata(client->adapter);
#endif
PDEBUG(DBG_I2C,"usbvision[%d] detaches %s", usbvision->nr, client->name);
return 0;
}
static int
usbvision_i2c_read_max4(struct usb_usbvision *usbvision, unsigned char addr,
char *buf, short len)
{
int rc, retries;
for (retries = 5;;) {
rc = usbvision_write_reg(usbvision, USBVISION_SER_ADRS, addr);
if (rc < 0)
return rc;
/* Initiate byte read cycle */
/* USBVISION_SER_CONT <- d0-d2 n. of bytes to r/w */
/* d3 0=Wr 1=Rd */
rc = usbvision_write_reg(usbvision, USBVISION_SER_CONT,
(len & 0x07) | 0x18);
if (rc < 0)
return rc;
/* Test for Busy and ACK */
do {
/* USBVISION_SER_CONT -> d4 == 0 busy */
rc = usbvision_read_reg(usbvision, USBVISION_SER_CONT);
} while (rc > 0 && ((rc & 0x10) != 0)); /* Retry while busy */
if (rc < 0)
return rc;
/* USBVISION_SER_CONT -> d5 == 1 Not ack */
if ((rc & 0x20) == 0) /* Ack? */
break;
/* I2C abort */
rc = usbvision_write_reg(usbvision, USBVISION_SER_CONT, 0x00);
if (rc < 0)
return rc;
if (--retries < 0)
return -1;
}
switch (len) {
case 4:
buf[3] = usbvision_read_reg(usbvision, USBVISION_SER_DAT4);
case 3:
buf[2] = usbvision_read_reg(usbvision, USBVISION_SER_DAT3);
case 2:
buf[1] = usbvision_read_reg(usbvision, USBVISION_SER_DAT2);
case 1:
buf[0] = usbvision_read_reg(usbvision, USBVISION_SER_DAT1);
break;
default:
printk(KERN_ERR
"usbvision_i2c_read_max4: buffer length > 4\n");
}
if (i2c_debug & DBG_I2C) {
int idx;
for (idx = 0; idx < len; idx++) {
PDEBUG(DBG_I2C,"read %x from address %x", (unsigned char)buf[idx], addr);
}
}
return len;
}
static int usbvision_i2c_write_max4(struct usb_usbvision *usbvision,
unsigned char addr, const char *buf,
short len)
{
int rc, retries;
int i;
unsigned char value[6];
unsigned char ser_cont;
ser_cont = (len & 0x07) | 0x10;
value[0] = addr;
value[1] = ser_cont;
for (i = 0; i < len; i++)
value[i + 2] = buf[i];
for (retries = 5;;) {
rc = usb_control_msg(usbvision->dev,
usb_sndctrlpipe(usbvision->dev, 1),
USBVISION_OP_CODE,
USB_DIR_OUT | USB_TYPE_VENDOR |
USB_RECIP_ENDPOINT, 0,
(__u16) USBVISION_SER_ADRS, value,
len + 2, HZ);
if (rc < 0)
return rc;
rc = usbvision_write_reg(usbvision, USBVISION_SER_CONT,
(len & 0x07) | 0x10);
if (rc < 0)
return rc;
/* Test for Busy and ACK */
do {
rc = usbvision_read_reg(usbvision, USBVISION_SER_CONT);
} while (rc > 0 && ((rc & 0x10) != 0)); /* Retry while busy */
if (rc < 0)
return rc;
if ((rc & 0x20) == 0) /* Ack? */
break;
/* I2C abort */
usbvision_write_reg(usbvision, USBVISION_SER_CONT, 0x00);
if (--retries < 0)
return -1;
}
if (i2c_debug & DBG_I2C) {
int idx;
for (idx = 0; idx < len; idx++) {
PDEBUG(DBG_I2C,"wrote %x at address %x", (unsigned char)buf[idx], addr);
}
}
return len;
}
static int usbvision_i2c_write(void *data, unsigned char addr, char *buf,
short len)
{
char *bufPtr = buf;
int retval;
int wrcount = 0;
int count;
int maxLen = 4;
struct usb_usbvision *usbvision = (struct usb_usbvision *) data;
while (len > 0) {
count = (len > maxLen) ? maxLen : len;
retval = usbvision_i2c_write_max4(usbvision, addr, bufPtr, count);
if (retval > 0) {
len -= count;
bufPtr += count;
wrcount += count;
} else
return (retval < 0) ? retval : -EFAULT;
}
return wrcount;
}
static int usbvision_i2c_read(void *data, unsigned char addr, char *buf,
short len)
{
char temp[4];
int retval, i;
int rdcount = 0;
int count;
struct usb_usbvision *usbvision = (struct usb_usbvision *) data;
while (len > 0) {
count = (len > 3) ? 4 : len;
retval = usbvision_i2c_read_max4(usbvision, addr, temp, count);
if (retval > 0) {
for (i = 0; i < len; i++)
buf[rdcount + i] = temp[i];
len -= count;
rdcount += count;
} else
return (retval < 0) ? retval : -EFAULT;
}
return rdcount;
}
static struct i2c_algo_usb_data i2c_algo_template = {
.data = NULL,
.inb = usbvision_i2c_read,
.outb = usbvision_i2c_write,
.udelay = 10,
.mdelay = 10,
.timeout = 100,
};
static struct i2c_adapter i2c_adap_template = {
.owner = THIS_MODULE,
.name = "usbvision",
.id = I2C_HW_B_BT848, /* FIXME */
.algo = NULL,
.algo_data = NULL,
.client_register = attach_inform,
.client_unregister = detach_inform,
#if defined (I2C_ADAP_CLASS_TV_ANALOG)
.class = I2C_ADAP_CLASS_TV_ANALOG,
#elif defined (I2C_CLASS_TV_ANALOG)
.class = I2C_CLASS_TV_ANALOG,
#endif
};
static struct i2c_client i2c_client_template = {
.name = "usbvision internal",
};
EXPORT_SYMBOL(usbvision_i2c_usb_add_bus);
EXPORT_SYMBOL(usbvision_i2c_usb_del_bus);
/*
* Overrides for Emacs so that we follow Linus's tabbing style.
* ---------------------------------------------------------------------------
* Local variables:
* c-basic-offset: 8
* End:
*/
/*
* I2C_ALGO_USB.H
* i2c algorithm for USB-I2C Bridges
*
* Copyright (c) 1999-2005 Joerg Heckenbach <joerg@heckenbach-aw.de>
*
* This module is part of usbvision driver project.
* Updates to driver completed by Dwaine P. Garden
*
* 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.
*/
#ifndef I2C_ALGO_USB_H
#define I2C_ALGO_USB_H 1
#include <linux/i2c.h>
struct i2c_algo_usb_data {
void *data; /* private data for lowlevel routines */
int (*inb) (void *data, unsigned char addr, char *buf, short len);
int (*outb) (void *data, unsigned char addr, char *buf, short len);
/* local settings */
int udelay;
int mdelay;
int timeout;
};
#define I2C_USB_ADAP_MAX 16
int usbvision_i2c_usb_add_bus(struct i2c_adapter *);
int usbvision_i2c_usb_del_bus(struct i2c_adapter *);
static inline void *i2c_get_algo_usb_data (struct i2c_algo_usb_data *dev)
{
return dev->data;
}
static inline void i2c_set_algo_usb_data (struct i2c_algo_usb_data *dev, void *data)
{
dev->data = data;
}
#endif //I2C_ALGO_USB_H
此差异已折叠。
......@@ -28,7 +28,9 @@
#include <linux/list.h>
#include <linux/usb.h>
#include "usbvision-i2c.h"
#include <media/v4l2-common.h>
#include <media/tuner.h>
#include <linux/videodev2.h>
#ifndef VID_HARDWARE_USBVISION
#define VID_HARDWARE_USBVISION 34 /* USBVision Video Grabber */
......@@ -139,11 +141,21 @@
#define USBVISION_MAX_ISOC_PACKET_SIZE 959 // NT1003 Specs Document says 1023
#define USBVISION_NUM_HEADERMARKER 20
#define USBVISION_NUMFRAMES 3
#define USBVISION_NUMSBUF 2
#define USBVISION_NUMFRAMES 3 /* Maximum number of frames an application can get */
#define USBVISION_NUMSBUF 2 /* Dimensioning the USB S buffering */
#define USBVISION_POWEROFF_TIME 3 * (HZ) // 3 seconds
#define FRAMERATE_MIN 0
#define FRAMERATE_MAX 31
enum {
ISOC_MODE_YUV422 = 0x03,
ISOC_MODE_YUV420 = 0x14,
ISOC_MODE_COMPRESS = 0x60,
};
/* This macro restricts an int variable to an inclusive range */
#define RESTRICT_TO_RANGE(v,mi,ma) { if ((v) < (mi)) (v) = (mi); else if ((v) > (ma)) (v) = (ma); }
......@@ -181,8 +193,6 @@
mr = LIMIT_RGB(mm_r); \
}
/* Debugging aid */
#define USBVISION_SAY_AND_WAIT(what) { \
wait_queue_head_t wq; \
......@@ -202,7 +212,23 @@
((udevice)->last_error == 0) && \
(!(udevice)->remove_pending))
/* I2C structures */
struct i2c_algo_usb_data {
void *data; /* private data for lowlevel routines */
int (*inb) (void *data, unsigned char addr, char *buf, short len);
int (*outb) (void *data, unsigned char addr, char *buf, short len);
/* local settings */
int udelay;
int mdelay;
int timeout;
};
#define I2C_USB_ADAP_MAX 16
/* ----------------------------------------------------------------- */
/* usbvision video structures */
/* ----------------------------------------------------------------- */
enum ScanState {
ScanState_Scanning, /* Scanning for header */
ScanState_Lines /* Parsing lines */
......@@ -347,7 +373,6 @@ struct usb_usbvision {
struct video_device *vdev; /* Video Device */
struct video_device *rdev; /* Radio Device */
struct video_device *vbi; /* VBI Device */
struct video_audio audio_dev; /* Current audio params */
/* i2c Declaration Section*/
struct i2c_adapter i2c_adap;
......@@ -361,6 +386,7 @@ struct usb_usbvision {
wait_queue_head_t ctrlUrb_wq; // Processes waiting
struct semaphore ctrlUrbLock;
/* configuration part */
int have_tuner;
int tuner_type;
int tuner_addr;
......@@ -372,7 +398,7 @@ struct usb_usbvision {
int AudioMute;
int AudioChannel;
int isocMode; // format of video data for the usb isoc-transfer
unsigned int nr; // Number of the device < MAX_USBVISION
unsigned int nr; // Number of the device
/* Device structure */
struct usb_device *dev;
......@@ -384,7 +410,6 @@ struct usb_usbvision {
struct work_struct powerOffWork;
int power; /* is the device powered on? */
int user; /* user count for exclusive use */
int usbvision_used; /* Is this structure in use? */
int initialized; /* Had we already sent init sequence? */
int DevModel; /* What type of USBVISION device we got? */
enum StreamState streaming; /* Are we streaming Isochronous? */
......@@ -402,7 +427,6 @@ struct usb_usbvision {
wait_queue_head_t wait_stream; /* Processes waiting */
struct usbvision_frame *curFrame; // pointer to current frame, set by usbvision_find_header
struct usbvision_frame frame[USBVISION_NUMFRAMES]; // frame buffer
int curSbufNum; // number of current receiving sbuf
struct usbvision_sbuf sbuf[USBVISION_NUMSBUF]; // S buffering
volatile int remove_pending; /* If set then about to exit */
......@@ -413,13 +437,7 @@ struct usb_usbvision {
int scratch_headermarker[USBVISION_NUM_HEADERMARKER];
int scratch_headermarker_read_ptr;
int scratch_headermarker_write_ptr;
int isocstate;
/* color controls */
int saturation;
int hue;
int brightness;
int contrast;
int depth;
enum IsocState isocstate;
struct usbvision_v4l2_format_st palette;
struct v4l2_capability vcap; /* Video capabilities */
......@@ -427,17 +445,6 @@ struct usb_usbvision {
struct usbvision_tvnorm *tvnorm; /* selected tv norm */
unsigned char video_endp; /* 0x82 for USBVISION devices based */
// Overlay stuff:
struct v4l2_framebuffer vid_buf;
struct v4l2_format vid_win;
int vid_buf_valid; // Status: video buffer is valid (set)
int vid_win_valid; // Status: video window is valid (set)
int overlay; /*Status: Are we overlaying? */
unsigned int clipmask[USBVISION_CLIPMASK_SIZE / 4];
unsigned char *overlay_base; /* Virtual base address of video buffer */
unsigned char *overlay_win; /* virt start address of overlay window */
struct usbvision_frame overlay_frame;
// Decompression stuff:
unsigned char *IntraFrameBuffer; /* Buffer for reference frame */
int BlockPos; //for test only
......@@ -449,16 +456,6 @@ struct usb_usbvision {
int lastComprLevel; // How strong (100) or weak (0) was compression
int usb_bandwidth; /* Mbit/s */
/* /proc entries, relative to /proc/video/usbvision/ */
struct proc_dir_entry *proc_devdir; /* Per-device proc directory */
struct proc_dir_entry *proc_info; /* <minor#>/info entry */
struct proc_dir_entry *proc_register; /* <minor#>/register entry */
struct proc_dir_entry *proc_freq; /* <minor#>/freq entry */
struct proc_dir_entry *proc_input; /* <minor#>/input entry */
struct proc_dir_entry *proc_frame; /* <minor#>/frame entry */
struct proc_dir_entry *proc_button; /* <minor#>/button entry */
struct proc_dir_entry *proc_control; /* <minor#>/control entry */
/* Statistics that can be overlayed on the screen */
unsigned long isocUrbCount; // How many URBs we received so far
unsigned long urb_length; /* Length of last URB */
......@@ -479,6 +476,70 @@ struct usb_usbvision {
int ComprBlockTypes[4];
};
/* --------------------------------------------------------------- */
/* defined in usbvision-i2c.c */
/* i2c-algo-usb declaration */
/* --------------------------------------------------------------- */
int usbvision_i2c_usb_add_bus(struct i2c_adapter *);
int usbvision_i2c_usb_del_bus(struct i2c_adapter *);
static inline void *i2c_get_algo_usb_data (struct i2c_algo_usb_data *dev)
{
return dev->data;
}
static inline void i2c_set_algo_usb_data (struct i2c_algo_usb_data *dev, void *data)
{
dev->data = data;
}
/* ----------------------------------------------------------------------- */
/* usbvision specific I2C functions */
/* ----------------------------------------------------------------------- */
int usbvision_init_i2c(struct usb_usbvision *usbvision);
void call_i2c_clients(struct usb_usbvision *usbvision, unsigned int cmd,void *arg);
/* defined in usbvision-core.c */
void *usbvision_rvmalloc(unsigned long size);
void usbvision_rvfree(void *mem, unsigned long size);
int usbvision_read_reg(struct usb_usbvision *usbvision, unsigned char reg);
int usbvision_write_reg(struct usb_usbvision *usbvision, unsigned char reg,
unsigned char value);
int usbvision_frames_alloc(struct usb_usbvision *usbvision);
void usbvision_frames_free(struct usb_usbvision *usbvision);
int usbvision_scratch_alloc(struct usb_usbvision *usbvision);
void usbvision_scratch_free(struct usb_usbvision *usbvision);
int usbvision_sbuf_alloc(struct usb_usbvision *usbvision);
void usbvision_sbuf_free(struct usb_usbvision *usbvision);
int usbvision_decompress_alloc(struct usb_usbvision *usbvision);
void usbvision_decompress_free(struct usb_usbvision *usbvision);
int usbvision_setup(struct usb_usbvision *usbvision,int format);
int usbvision_init_isoc(struct usb_usbvision *usbvision);
int usbvision_restart_isoc(struct usb_usbvision *usbvision);
void usbvision_stop_isoc(struct usb_usbvision *usbvision);
int usbvision_set_audio(struct usb_usbvision *usbvision, int AudioChannel);
int usbvision_audio_off(struct usb_usbvision *usbvision);
int usbvision_begin_streaming(struct usb_usbvision *usbvision);
void usbvision_empty_framequeues(struct usb_usbvision *dev);
int usbvision_stream_interrupt(struct usb_usbvision *dev);
int usbvision_muxsel(struct usb_usbvision *usbvision, int channel);
int usbvision_set_input(struct usb_usbvision *usbvision);
int usbvision_set_output(struct usb_usbvision *usbvision, int width, int height);
void usbvision_init_powerOffTimer(struct usb_usbvision *usbvision);
void usbvision_set_powerOffTimer(struct usb_usbvision *usbvision);
void usbvision_reset_powerOffTimer(struct usb_usbvision *usbvision);
int usbvision_power_off(struct usb_usbvision *usbvision);
int usbvision_power_on(struct usb_usbvision *usbvision);
#endif /* __LINUX_USBVISION_H */
/*
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