| /* |
| * Endpoints (formerly known as AOX) se401 USB Camera Driver |
| * |
| * Copyright (c) 2000 Jeroen B. Vreeken (pe1rxq@amsat.org) |
| * |
| * Still somewhat based on the Linux ov511 driver. |
| * |
| * 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. |
| * |
| * |
| * Thanks to Endpoints Inc. (www.endpoints.com) for making documentation on |
| * their chipset available and supporting me while writing this driver. |
| * - Jeroen Vreeken |
| */ |
| |
| static const char version[] = "0.24"; |
| |
| #include <linux/module.h> |
| #include <linux/init.h> |
| #include <linux/vmalloc.h> |
| #include <linux/slab.h> |
| #include <linux/pagemap.h> |
| #include <linux/usb.h> |
| #include "se401.h" |
| |
| static int flickerless; |
| static int video_nr = -1; |
| |
| static struct usb_device_id device_table [] = { |
| { USB_DEVICE(0x03e8, 0x0004) },/* Endpoints/Aox SE401 */ |
| { USB_DEVICE(0x0471, 0x030b) },/* Philips PCVC665K */ |
| { USB_DEVICE(0x047d, 0x5001) },/* Kensington 67014 */ |
| { USB_DEVICE(0x047d, 0x5002) },/* Kensington 6701(5/7) */ |
| { USB_DEVICE(0x047d, 0x5003) },/* Kensington 67016 */ |
| { } |
| }; |
| |
| MODULE_DEVICE_TABLE(usb, device_table); |
| |
| MODULE_AUTHOR("Jeroen Vreeken <pe1rxq@amsat.org>"); |
| MODULE_DESCRIPTION("SE401 USB Camera Driver"); |
| MODULE_LICENSE("GPL"); |
| module_param(flickerless, int, 0); |
| MODULE_PARM_DESC(flickerless, "Net frequency to adjust exposure time to (0/50/60)"); |
| module_param(video_nr, int, 0); |
| |
| static struct usb_driver se401_driver; |
| |
| |
| /********************************************************************** |
| * |
| * Memory management |
| * |
| **********************************************************************/ |
| static void *rvmalloc(unsigned long size) |
| { |
| void *mem; |
| unsigned long adr; |
| |
| size = PAGE_ALIGN(size); |
| mem = vmalloc_32(size); |
| if (!mem) |
| return NULL; |
| |
| memset(mem, 0, size); /* Clear the ram out, no junk to the user */ |
| adr = (unsigned long) mem; |
| while (size > 0) { |
| SetPageReserved(vmalloc_to_page((void *)adr)); |
| adr += PAGE_SIZE; |
| size -= PAGE_SIZE; |
| } |
| |
| return mem; |
| } |
| |
| static void rvfree(void *mem, unsigned long size) |
| { |
| unsigned long adr; |
| |
| if (!mem) |
| return; |
| |
| adr = (unsigned long) mem; |
| while ((long) size > 0) { |
| ClearPageReserved(vmalloc_to_page((void *)adr)); |
| adr += PAGE_SIZE; |
| size -= PAGE_SIZE; |
| } |
| vfree(mem); |
| } |
| |
| |
| |
| /**************************************************************************** |
| * |
| * se401 register read/write functions |
| * |
| ***************************************************************************/ |
| |
| static int se401_sndctrl(int set, struct usb_se401 *se401, unsigned short req, |
| unsigned short value, unsigned char *cp, int size) |
| { |
| return usb_control_msg ( |
| se401->dev, |
| set ? usb_sndctrlpipe(se401->dev, 0) : usb_rcvctrlpipe(se401->dev, 0), |
| req, |
| (set ? USB_DIR_OUT : USB_DIR_IN) | USB_TYPE_VENDOR | USB_RECIP_DEVICE, |
| value, |
| 0, |
| cp, |
| size, |
| 1000 |
| ); |
| } |
| |
| static int se401_set_feature(struct usb_se401 *se401, unsigned short selector, |
| unsigned short param) |
| { |
| /* specs say that the selector (address) should go in the value field |
| and the param in index, but in the logs of the windows driver they do |
| this the other way around... |
| */ |
| return usb_control_msg ( |
| se401->dev, |
| usb_sndctrlpipe(se401->dev, 0), |
| SE401_REQ_SET_EXT_FEATURE, |
| USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, |
| param, |
| selector, |
| NULL, |
| 0, |
| 1000 |
| ); |
| } |
| |
| static unsigned short se401_get_feature(struct usb_se401 *se401, |
| unsigned short selector) |
| { |
| /* For 'set' the selecetor should be in index, not sure if the spec is |
| wrong here to.... |
| */ |
| unsigned char cp[2]; |
| usb_control_msg ( |
| se401->dev, |
| usb_rcvctrlpipe(se401->dev, 0), |
| SE401_REQ_GET_EXT_FEATURE, |
| USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, |
| 0, |
| selector, |
| cp, |
| 2, |
| 1000 |
| ); |
| return cp[0]+cp[1]*256; |
| } |
| |
| /**************************************************************************** |
| * |
| * Camera control |
| * |
| ***************************************************************************/ |
| |
| |
| static int se401_send_pict(struct usb_se401 *se401) |
| { |
| se401_set_feature(se401, HV7131_REG_TITL, se401->expose_l);/* integration time low */ |
| se401_set_feature(se401, HV7131_REG_TITM, se401->expose_m);/* integration time mid */ |
| se401_set_feature(se401, HV7131_REG_TITU, se401->expose_h);/* integration time mid */ |
| se401_set_feature(se401, HV7131_REG_ARLV, se401->resetlevel);/* reset level value */ |
| se401_set_feature(se401, HV7131_REG_ARCG, se401->rgain);/* red color gain */ |
| se401_set_feature(se401, HV7131_REG_AGCG, se401->ggain);/* green color gain */ |
| se401_set_feature(se401, HV7131_REG_ABCG, se401->bgain);/* blue color gain */ |
| |
| return 0; |
| } |
| |
| static void se401_set_exposure(struct usb_se401 *se401, int brightness) |
| { |
| int integration=brightness<<5; |
| |
| if (flickerless==50) { |
| integration=integration-integration%106667; |
| } |
| if (flickerless==60) { |
| integration=integration-integration%88889; |
| } |
| se401->brightness=integration>>5; |
| se401->expose_h=(integration>>16)&0xff; |
| se401->expose_m=(integration>>8)&0xff; |
| se401->expose_l=integration&0xff; |
| } |
| |
| static int se401_get_pict(struct usb_se401 *se401, struct video_picture *p) |
| { |
| p->brightness=se401->brightness; |
| if (se401->enhance) { |
| p->whiteness=32768; |
| } else { |
| p->whiteness=0; |
| } |
| p->colour=65535; |
| p->contrast=65535; |
| p->hue=se401->rgain<<10; |
| p->palette=se401->palette; |
| p->depth=3; /* rgb24 */ |
| return 0; |
| } |
| |
| |
| static int se401_set_pict(struct usb_se401 *se401, struct video_picture *p) |
| { |
| if (p->palette != VIDEO_PALETTE_RGB24) |
| return 1; |
| se401->palette=p->palette; |
| if (p->hue!=se401->hue) { |
| se401->rgain= p->hue>>10; |
| se401->bgain= 0x40-(p->hue>>10); |
| se401->hue=p->hue; |
| } |
| if (p->brightness!=se401->brightness) { |
| se401_set_exposure(se401, p->brightness); |
| } |
| if (p->whiteness>=32768) { |
| se401->enhance=1; |
| } else { |
| se401->enhance=0; |
| } |
| se401_send_pict(se401); |
| se401_send_pict(se401); |
| return 0; |
| } |
| |
| /* |
| Hyundai have some really nice docs about this and other sensor related |
| stuff on their homepage: www.hei.co.kr |
| */ |
| static void se401_auto_resetlevel(struct usb_se401 *se401) |
| { |
| unsigned int ahrc, alrc; |
| int oldreset=se401->resetlevel; |
| |
| /* For some reason this normally read-only register doesn't get reset |
| to zero after reading them just once... |
| */ |
| se401_get_feature(se401, HV7131_REG_HIREFNOH); |
| se401_get_feature(se401, HV7131_REG_HIREFNOL); |
| se401_get_feature(se401, HV7131_REG_LOREFNOH); |
| se401_get_feature(se401, HV7131_REG_LOREFNOL); |
| ahrc=256*se401_get_feature(se401, HV7131_REG_HIREFNOH) + |
| se401_get_feature(se401, HV7131_REG_HIREFNOL); |
| alrc=256*se401_get_feature(se401, HV7131_REG_LOREFNOH) + |
| se401_get_feature(se401, HV7131_REG_LOREFNOL); |
| |
| /* Not an exact science, but it seems to work pretty well... */ |
| if (alrc > 10) { |
| while (alrc>=10 && se401->resetlevel < 63) { |
| se401->resetlevel++; |
| alrc /=2; |
| } |
| } else if (ahrc > 20) { |
| while (ahrc>=20 && se401->resetlevel > 0) { |
| se401->resetlevel--; |
| ahrc /=2; |
| } |
| } |
| if (se401->resetlevel!=oldreset) |
| se401_set_feature(se401, HV7131_REG_ARLV, se401->resetlevel); |
| |
| return; |
| } |
| |
| /* irq handler for snapshot button */ |
| static void se401_button_irq(struct urb *urb) |
| { |
| struct usb_se401 *se401 = urb->context; |
| int status; |
| |
| if (!se401->dev) { |
| info("ohoh: device vapourished"); |
| return; |
| } |
| |
| switch (urb->status) { |
| case 0: |
| /* success */ |
| break; |
| case -ECONNRESET: |
| case -ENOENT: |
| case -ESHUTDOWN: |
| /* this urb is terminated, clean up */ |
| dbg("%s - urb shutting down with status: %d", __func__, urb->status); |
| return; |
| default: |
| dbg("%s - nonzero urb status received: %d", __func__, urb->status); |
| goto exit; |
| } |
| |
| if (urb->actual_length >=2) { |
| if (se401->button) |
| se401->buttonpressed=1; |
| } |
| exit: |
| status = usb_submit_urb (urb, GFP_ATOMIC); |
| if (status) |
| err ("%s - usb_submit_urb failed with result %d", |
| __func__, status); |
| } |
| |
| static void se401_video_irq(struct urb *urb) |
| { |
| struct usb_se401 *se401 = urb->context; |
| int length = urb->actual_length; |
| |
| /* ohoh... */ |
| if (!se401->streaming) |
| return; |
| |
| if (!se401->dev) { |
| info ("ohoh: device vapourished"); |
| return; |
| } |
| |
| /* 0 sized packets happen if we are to fast, but sometimes the camera |
| keeps sending them forever... |
| */ |
| if (length && !urb->status) { |
| se401->nullpackets=0; |
| switch(se401->scratch[se401->scratch_next].state) { |
| case BUFFER_READY: |
| case BUFFER_BUSY: { |
| se401->dropped++; |
| break; |
| } |
| case BUFFER_UNUSED: { |
| memcpy(se401->scratch[se401->scratch_next].data, (unsigned char *)urb->transfer_buffer, length); |
| se401->scratch[se401->scratch_next].state=BUFFER_READY; |
| se401->scratch[se401->scratch_next].offset=se401->bayeroffset; |
| se401->scratch[se401->scratch_next].length=length; |
| if (waitqueue_active(&se401->wq)) { |
| wake_up_interruptible(&se401->wq); |
| } |
| se401->scratch_overflow=0; |
| se401->scratch_next++; |
| if (se401->scratch_next>=SE401_NUMSCRATCH) |
| se401->scratch_next=0; |
| break; |
| } |
| } |
| se401->bayeroffset+=length; |
| if (se401->bayeroffset>=se401->cheight*se401->cwidth) { |
| se401->bayeroffset=0; |
| } |
| } else { |
| se401->nullpackets++; |
| if (se401->nullpackets > SE401_MAX_NULLPACKETS) { |
| if (waitqueue_active(&se401->wq)) { |
| wake_up_interruptible(&se401->wq); |
| } |
| } |
| } |
| |
| /* Resubmit urb for new data */ |
| urb->status=0; |
| urb->dev=se401->dev; |
| if(usb_submit_urb(urb, GFP_KERNEL)) |
| info("urb burned down"); |
| return; |
| } |
| |
| static void se401_send_size(struct usb_se401 *se401, int width, int height) |
| { |
| int i=0; |
| int mode=0x03; /* No compression */ |
| int sendheight=height; |
| int sendwidth=width; |
| |
| /* JangGu compression can only be used with the camera supported sizes, |
| but bayer seems to work with any size that fits on the sensor. |
| We check if we can use compression with the current size with either |
| 4 or 16 times subcapturing, if not we use uncompressed bayer data |
| but this will result in cutouts of the maximum size.... |
| */ |
| while (i<se401->sizes && !(se401->width[i]==width && se401->height[i]==height)) |
| i++; |
| while (i<se401->sizes) { |
| if (se401->width[i]==width*2 && se401->height[i]==height*2) { |
| sendheight=se401->height[i]; |
| sendwidth=se401->width[i]; |
| mode=0x40; |
| } |
| if (se401->width[i]==width*4 && se401->height[i]==height*4) { |
| sendheight=se401->height[i]; |
| sendwidth=se401->width[i]; |
| mode=0x42; |
| } |
| i++; |
| } |
| |
| se401_sndctrl(1, se401, SE401_REQ_SET_WIDTH, sendwidth, NULL, 0); |
| se401_sndctrl(1, se401, SE401_REQ_SET_HEIGHT, sendheight, NULL, 0); |
| se401_set_feature(se401, SE401_OPERATINGMODE, mode); |
| |
| if (mode==0x03) { |
| se401->format=FMT_BAYER; |
| } else { |
| se401->format=FMT_JANGGU; |
| } |
| |
| return; |
| } |
| |
| /* |
| In this function se401_send_pict is called several times, |
| for some reason (depending on the state of the sensor and the phase of |
| the moon :) doing this only in either place doesn't always work... |
| */ |
| static int se401_start_stream(struct usb_se401 *se401) |
| { |
| struct urb *urb; |
| int err=0, i; |
| se401->streaming=1; |
| |
| se401_sndctrl(1, se401, SE401_REQ_CAMERA_POWER, 1, NULL, 0); |
| se401_sndctrl(1, se401, SE401_REQ_LED_CONTROL, 1, NULL, 0); |
| |
| /* Set picture settings */ |
| se401_set_feature(se401, HV7131_REG_MODE_B, 0x05);/*windowed + pix intg */ |
| se401_send_pict(se401); |
| |
| se401_send_size(se401, se401->cwidth, se401->cheight); |
| |
| se401_sndctrl(1, se401, SE401_REQ_START_CONTINUOUS_CAPTURE, 0, NULL, 0); |
| |
| /* Do some memory allocation */ |
| for (i=0; i<SE401_NUMFRAMES; i++) { |
| se401->frame[i].data=se401->fbuf + i * se401->maxframesize; |
| se401->frame[i].curpix=0; |
| } |
| for (i=0; i<SE401_NUMSBUF; i++) { |
| se401->sbuf[i].data=kmalloc(SE401_PACKETSIZE, GFP_KERNEL); |
| if (!se401->sbuf[i].data) { |
| for(i = i - 1; i >= 0; i--) { |
| kfree(se401->sbuf[i].data); |
| se401->sbuf[i].data = NULL; |
| } |
| return -ENOMEM; |
| } |
| } |
| |
| se401->bayeroffset=0; |
| se401->scratch_next=0; |
| se401->scratch_use=0; |
| se401->scratch_overflow=0; |
| for (i=0; i<SE401_NUMSCRATCH; i++) { |
| se401->scratch[i].data=kmalloc(SE401_PACKETSIZE, GFP_KERNEL); |
| if (!se401->scratch[i].data) { |
| for(i = i - 1; i >= 0; i--) { |
| kfree(se401->scratch[i].data); |
| se401->scratch[i].data = NULL; |
| } |
| goto nomem_sbuf; |
| } |
| se401->scratch[i].state=BUFFER_UNUSED; |
| } |
| |
| for (i=0; i<SE401_NUMSBUF; i++) { |
| urb=usb_alloc_urb(0, GFP_KERNEL); |
| if(!urb) { |
| for(i = i - 1; i >= 0; i--) { |
| usb_kill_urb(se401->urb[i]); |
| usb_free_urb(se401->urb[i]); |
| se401->urb[i] = NULL; |
| } |
| goto nomem_scratch; |
| } |
| |
| usb_fill_bulk_urb(urb, se401->dev, |
| usb_rcvbulkpipe(se401->dev, SE401_VIDEO_ENDPOINT), |
| se401->sbuf[i].data, SE401_PACKETSIZE, |
| se401_video_irq, |
| se401); |
| |
| se401->urb[i]=urb; |
| |
| err=usb_submit_urb(se401->urb[i], GFP_KERNEL); |
| if(err) |
| err("urb burned down"); |
| } |
| |
| se401->framecount=0; |
| |
| return 0; |
| |
| nomem_scratch: |
| for (i=0; i<SE401_NUMSCRATCH; i++) { |
| kfree(se401->scratch[i].data); |
| se401->scratch[i].data = NULL; |
| } |
| nomem_sbuf: |
| for (i=0; i<SE401_NUMSBUF; i++) { |
| kfree(se401->sbuf[i].data); |
| se401->sbuf[i].data = NULL; |
| } |
| return -ENOMEM; |
| } |
| |
| static int se401_stop_stream(struct usb_se401 *se401) |
| { |
| int i; |
| |
| if (!se401->streaming || !se401->dev) |
| return 1; |
| |
| se401->streaming=0; |
| |
| se401_sndctrl(1, se401, SE401_REQ_STOP_CONTINUOUS_CAPTURE, 0, NULL, 0); |
| |
| se401_sndctrl(1, se401, SE401_REQ_LED_CONTROL, 0, NULL, 0); |
| se401_sndctrl(1, se401, SE401_REQ_CAMERA_POWER, 0, NULL, 0); |
| |
| for (i=0; i<SE401_NUMSBUF; i++) if (se401->urb[i]) { |
| usb_kill_urb(se401->urb[i]); |
| usb_free_urb(se401->urb[i]); |
| se401->urb[i]=NULL; |
| kfree(se401->sbuf[i].data); |
| } |
| for (i=0; i<SE401_NUMSCRATCH; i++) { |
| kfree(se401->scratch[i].data); |
| se401->scratch[i].data=NULL; |
| } |
| |
| return 0; |
| } |
| |
| static int se401_set_size(struct usb_se401 *se401, int width, int height) |
| { |
| int wasstreaming=se401->streaming; |
| /* Check to see if we need to change */ |
| if (se401->cwidth==width && se401->cheight==height) |
| return 0; |
| |
| /* Check for a valid mode */ |
| if (!width || !height) |
| return 1; |
| if ((width & 1) || (height & 1)) |
| return 1; |
| if (width>se401->width[se401->sizes-1]) |
| return 1; |
| if (height>se401->height[se401->sizes-1]) |
| return 1; |
| |
| /* Stop a current stream and start it again at the new size */ |
| if (wasstreaming) |
| se401_stop_stream(se401); |
| se401->cwidth=width; |
| se401->cheight=height; |
| if (wasstreaming) |
| se401_start_stream(se401); |
| return 0; |
| } |
| |
| |
| /**************************************************************************** |
| * |
| * Video Decoding |
| * |
| ***************************************************************************/ |
| |
| /* |
| This shouldn't really be done in a v4l driver.... |
| But it does make the image look a lot more usable. |
| Basically it lifts the dark pixels more than the light pixels. |
| */ |
| static inline void enhance_picture(unsigned char *frame, int len) |
| { |
| while (len--) { |
| *frame=(((*frame^255)*(*frame^255))/255)^255; |
| frame++; |
| } |
| } |
| |
| static inline void decode_JangGu_integrate(struct usb_se401 *se401, int data) |
| { |
| struct se401_frame *frame=&se401->frame[se401->curframe]; |
| int linelength=se401->cwidth*3; |
| |
| if (frame->curlinepix >= linelength) { |
| frame->curlinepix=0; |
| frame->curline+=linelength; |
| } |
| |
| /* First three are absolute, all others relative. |
| * Format is rgb from right to left (mirrorred image), |
| * we flip it to get bgr from left to right. */ |
| if (frame->curlinepix < 3) { |
| *(frame->curline-frame->curlinepix)=1+data*4; |
| } else { |
| *(frame->curline-frame->curlinepix)= |
| *(frame->curline-frame->curlinepix+3)+data*4; |
| } |
| frame->curlinepix++; |
| } |
| |
| static inline void decode_JangGu_vlc (struct usb_se401 *se401, unsigned char *data, int bit_exp, int packetlength) |
| { |
| int pos=0; |
| int vlc_cod=0; |
| int vlc_size=0; |
| int vlc_data=0; |
| int bit_cur; |
| int bit; |
| data+=4; |
| while (pos < packetlength) { |
| bit_cur=8; |
| while (bit_cur && bit_exp) { |
| bit=((*data)>>(bit_cur-1))&1; |
| if (!vlc_cod) { |
| if (bit) { |
| vlc_size++; |
| } else { |
| if (!vlc_size) { |
| decode_JangGu_integrate(se401, 0); |
| } else { |
| vlc_cod=2; |
| vlc_data=0; |
| } |
| } |
| } else { |
| if (vlc_cod==2) { |
| if (!bit) |
| vlc_data = -(1<<vlc_size) + 1; |
| vlc_cod--; |
| } |
| vlc_size--; |
| vlc_data+=bit<<vlc_size; |
| if (!vlc_size) { |
| decode_JangGu_integrate(se401, vlc_data); |
| vlc_cod=0; |
| } |
| } |
| bit_cur--; |
| bit_exp--; |
| } |
| pos++; |
| data++; |
| } |
| } |
| |
| static inline void decode_JangGu (struct usb_se401 *se401, struct se401_scratch *buffer) |
| { |
| unsigned char *data=buffer->data; |
| int len=buffer->length; |
| int bit_exp=0, pix_exp=0, frameinfo=0, packetlength=0, size; |
| int datapos=0; |
| |
| /* New image? */ |
| if (!se401->frame[se401->curframe].curpix) { |
| se401->frame[se401->curframe].curlinepix=0; |
| se401->frame[se401->curframe].curline= |
| se401->frame[se401->curframe].data+ |
| se401->cwidth*3-1; |
| if (se401->frame[se401->curframe].grabstate==FRAME_READY) |
| se401->frame[se401->curframe].grabstate=FRAME_GRABBING; |
| se401->vlcdatapos=0; |
| } |
| while (datapos < len) { |
| size=1024-se401->vlcdatapos; |
| if (size+datapos > len) |
| size=len-datapos; |
| memcpy(se401->vlcdata+se401->vlcdatapos, data+datapos, size); |
| se401->vlcdatapos+=size; |
| packetlength=0; |
| if (se401->vlcdatapos >= 4) { |
| bit_exp=se401->vlcdata[3]+(se401->vlcdata[2]<<8); |
| pix_exp=se401->vlcdata[1]+((se401->vlcdata[0]&0x3f)<<8); |
| frameinfo=se401->vlcdata[0]&0xc0; |
| packetlength=((bit_exp+47)>>4)<<1; |
| if (packetlength > 1024) { |
| se401->vlcdatapos=0; |
| datapos=len; |
| packetlength=0; |
| se401->error++; |
| se401->frame[se401->curframe].curpix=0; |
| } |
| } |
| if (packetlength && se401->vlcdatapos >= packetlength) { |
| decode_JangGu_vlc(se401, se401->vlcdata, bit_exp, packetlength); |
| se401->frame[se401->curframe].curpix+=pix_exp*3; |
| datapos+=size-(se401->vlcdatapos-packetlength); |
| se401->vlcdatapos=0; |
| if (se401->frame[se401->curframe].curpix>=se401->cwidth*se401->cheight*3) { |
| if (se401->frame[se401->curframe].curpix==se401->cwidth*se401->cheight*3) { |
| if (se401->frame[se401->curframe].grabstate==FRAME_GRABBING) { |
| se401->frame[se401->curframe].grabstate=FRAME_DONE; |
| se401->framecount++; |
| se401->readcount++; |
| } |
| if (se401->frame[(se401->curframe+1)&(SE401_NUMFRAMES-1)].grabstate==FRAME_READY) { |
| se401->curframe=(se401->curframe+1) & (SE401_NUMFRAMES-1); |
| } |
| } else { |
| se401->error++; |
| } |
| se401->frame[se401->curframe].curpix=0; |
| datapos=len; |
| } |
| } else { |
| datapos+=size; |
| } |
| } |
| } |
| |
| static inline void decode_bayer (struct usb_se401 *se401, struct se401_scratch *buffer) |
| { |
| unsigned char *data=buffer->data; |
| int len=buffer->length; |
| int offset=buffer->offset; |
| int datasize=se401->cwidth*se401->cheight; |
| struct se401_frame *frame=&se401->frame[se401->curframe]; |
| |
| unsigned char *framedata=frame->data, *curline, *nextline; |
| int width=se401->cwidth; |
| int blineoffset=0, bline; |
| int linelength=width*3, i; |
| |
| |
| if (frame->curpix==0) { |
| if (frame->grabstate==FRAME_READY) { |
| frame->grabstate=FRAME_GRABBING; |
| } |
| frame->curline=framedata+linelength; |
| frame->curlinepix=0; |
| } |
| |
| if (offset!=frame->curpix) { |
| /* Regard frame as lost :( */ |
| frame->curpix=0; |
| se401->error++; |
| return; |
| } |
| |
| /* Check if we have to much data */ |
| if (frame->curpix+len > datasize) { |
| len=datasize-frame->curpix; |
| } |
| if (se401->cheight%4) |
| blineoffset=1; |
| bline=frame->curpix/se401->cwidth+blineoffset; |
| |
| curline=frame->curline; |
| nextline=curline+linelength; |
| if (nextline >= framedata+datasize*3) |
| nextline=curline; |
| while (len) { |
| if (frame->curlinepix>=width) { |
| frame->curlinepix-=width; |
| bline=frame->curpix/width+blineoffset; |
| curline+=linelength*2; |
| nextline+=linelength*2; |
| if (curline >= framedata+datasize*3) { |
| frame->curlinepix++; |
| curline-=3; |
| nextline-=3; |
| len--; |
| data++; |
| frame->curpix++; |
| } |
| if (nextline >= framedata+datasize*3) |
| nextline=curline; |
| } |
| if ((bline&1)) { |
| if ((frame->curlinepix&1)) { |
| *(curline+2)=*data; |
| *(curline-1)=*data; |
| *(nextline+2)=*data; |
| *(nextline-1)=*data; |
| } else { |
| *(curline+1)= |
| (*(curline+1)+*data)/2; |
| *(curline-2)= |
| (*(curline-2)+*data)/2; |
| *(nextline+1)=*data; |
| *(nextline-2)=*data; |
| } |
| } else { |
| if ((frame->curlinepix&1)) { |
| *(curline+1)= |
| (*(curline+1)+*data)/2; |
| *(curline-2)= |
| (*(curline-2)+*data)/2; |
| *(nextline+1)=*data; |
| *(nextline-2)=*data; |
| } else { |
| *curline=*data; |
| *(curline-3)=*data; |
| *nextline=*data; |
| *(nextline-3)=*data; |
| } |
| } |
| frame->curlinepix++; |
| curline-=3; |
| nextline-=3; |
| len--; |
| data++; |
| frame->curpix++; |
| } |
| frame->curline=curline; |
| |
| if (frame->curpix>=datasize) { |
| /* Fix the top line */ |
| framedata+=linelength; |
| for (i=0; i<linelength; i++) { |
| framedata--; |
| *framedata=*(framedata+linelength); |
| } |
| /* Fix the left side (green is already present) */ |
| for (i=0; i<se401->cheight; i++) { |
| *framedata=*(framedata+3); |
| *(framedata+1)=*(framedata+4); |
| *(framedata+2)=*(framedata+5); |
| framedata+=linelength; |
| } |
| frame->curpix=0; |
| frame->grabstate=FRAME_DONE; |
| se401->framecount++; |
| se401->readcount++; |
| if (se401->frame[(se401->curframe+1)&(SE401_NUMFRAMES-1)].grabstate==FRAME_READY) { |
| se401->curframe=(se401->curframe+1) & (SE401_NUMFRAMES-1); |
| } |
| } |
| } |
| |
| static int se401_newframe(struct usb_se401 *se401, int framenr) |
| { |
| DECLARE_WAITQUEUE(wait, current); |
| int errors=0; |
| |
| while (se401->streaming && |
| (se401->frame[framenr].grabstate==FRAME_READY || |
| se401->frame[framenr].grabstate==FRAME_GRABBING) ) { |
| if(!se401->frame[framenr].curpix) { |
| errors++; |
| } |
| wait_interruptible( |
| se401->scratch[se401->scratch_use].state!=BUFFER_READY, |
| &se401->wq, |
| &wait |
| ); |
| if (se401->nullpackets > SE401_MAX_NULLPACKETS) { |
| se401->nullpackets=0; |
| info("to many null length packets, restarting capture"); |
| se401_stop_stream(se401); |
| se401_start_stream(se401); |
| } else { |
| if (se401->scratch[se401->scratch_use].state!=BUFFER_READY) { |
| se401->frame[framenr].grabstate=FRAME_ERROR; |
| return -EIO; |
| } |
| se401->scratch[se401->scratch_use].state=BUFFER_BUSY; |
| if (se401->format==FMT_JANGGU) { |
| decode_JangGu(se401, &se401->scratch[se401->scratch_use]); |
| } else { |
| decode_bayer(se401, &se401->scratch[se401->scratch_use]); |
| } |
| se401->scratch[se401->scratch_use].state=BUFFER_UNUSED; |
| se401->scratch_use++; |
| if (se401->scratch_use>=SE401_NUMSCRATCH) |
| se401->scratch_use=0; |
| if (errors > SE401_MAX_ERRORS) { |
| errors=0; |
| info("to much errors, restarting capture"); |
| se401_stop_stream(se401); |
| se401_start_stream(se401); |
| } |
| } |
| } |
| |
| if (se401->frame[framenr].grabstate==FRAME_DONE) |
| if (se401->enhance) |
| enhance_picture(se401->frame[framenr].data, se401->cheight*se401->cwidth*3); |
| return 0; |
| } |
| |
| static void usb_se401_remove_disconnected (struct usb_se401 *se401) |
| { |
| int i; |
| |
| se401->dev = NULL; |
| |
| for (i=0; i<SE401_NUMSBUF; i++) |
| if (se401->urb[i]) { |
| usb_kill_urb(se401->urb[i]); |
| usb_free_urb(se401->urb[i]); |
| se401->urb[i] = NULL; |
| kfree(se401->sbuf[i].data); |
| } |
| for (i=0; i<SE401_NUMSCRATCH; i++) { |
| kfree(se401->scratch[i].data); |
| } |
| if (se401->inturb) { |
| usb_kill_urb(se401->inturb); |
| usb_free_urb(se401->inturb); |
| } |
| info("%s disconnected", se401->camera_name); |
| |
| /* Free the memory */ |
| kfree(se401->width); |
| kfree(se401->height); |
| kfree(se401); |
| } |
| |
| |
| |
| /**************************************************************************** |
| * |
| * Video4Linux |
| * |
| ***************************************************************************/ |
| |
| |
| static int se401_open(struct inode *inode, struct file *file) |
| { |
| struct video_device *dev = video_devdata(file); |
| struct usb_se401 *se401 = (struct usb_se401 *)dev; |
| int err = 0; |
| |
| lock_kernel(); |
| if (se401->user) { |
| unlock_kernel(); |
| return -EBUSY; |
| } |
| se401->fbuf = rvmalloc(se401->maxframesize * SE401_NUMFRAMES); |
| if (se401->fbuf) |
| file->private_data = dev; |
| else |
| err = -ENOMEM; |
| se401->user = !err; |
| unlock_kernel(); |
| |
| return err; |
| } |
| |
| static int se401_close(struct inode *inode, struct file *file) |
| { |
| struct video_device *dev = file->private_data; |
| struct usb_se401 *se401 = (struct usb_se401 *)dev; |
| int i; |
| |
| rvfree(se401->fbuf, se401->maxframesize * SE401_NUMFRAMES); |
| if (se401->removed) { |
| usb_se401_remove_disconnected(se401); |
| info("device unregistered"); |
| } else { |
| for (i=0; i<SE401_NUMFRAMES; i++) |
| se401->frame[i].grabstate=FRAME_UNUSED; |
| if (se401->streaming) |
| se401_stop_stream(se401); |
| se401->user=0; |
| } |
| file->private_data = NULL; |
| return 0; |
| } |
| |
| static int se401_do_ioctl(struct inode *inode, struct file *file, |
| unsigned int cmd, void *arg) |
| { |
| struct video_device *vdev = file->private_data; |
| struct usb_se401 *se401 = (struct usb_se401 *)vdev; |
| |
| if (!se401->dev) |
| return -EIO; |
| |
| switch (cmd) { |
| case VIDIOCGCAP: |
| { |
| struct video_capability *b = arg; |
| strcpy(b->name, se401->camera_name); |
| b->type = VID_TYPE_CAPTURE; |
| b->channels = 1; |
| b->audios = 0; |
| b->maxwidth = se401->width[se401->sizes-1]; |
| b->maxheight = se401->height[se401->sizes-1]; |
| b->minwidth = se401->width[0]; |
| b->minheight = se401->height[0]; |
| return 0; |
| } |
| case VIDIOCGCHAN: |
| { |
| struct video_channel *v = arg; |
| |
| if (v->channel != 0) |
| return -EINVAL; |
| v->flags = 0; |
| v->tuners = 0; |
| v->type = VIDEO_TYPE_CAMERA; |
| strcpy(v->name, "Camera"); |
| return 0; |
| } |
| case VIDIOCSCHAN: |
| { |
| struct video_channel *v = arg; |
| |
| if (v->channel != 0) |
| return -EINVAL; |
| return 0; |
| } |
| case VIDIOCGPICT: |
| { |
| struct video_picture *p = arg; |
| |
| se401_get_pict(se401, p); |
| return 0; |
| } |
| case VIDIOCSPICT: |
| { |
| struct video_picture *p = arg; |
| |
| if (se401_set_pict(se401, p)) |
| return -EINVAL; |
| return 0; |
| } |
| case VIDIOCSWIN: |
| { |
| struct video_window *vw = arg; |
| |
| if (vw->flags) |
| return -EINVAL; |
| if (vw->clipcount) |
| return -EINVAL; |
| if (se401_set_size(se401, vw->width, vw->height)) |
| return -EINVAL; |
| return 0; |
| } |
| case VIDIOCGWIN: |
| { |
| struct video_window *vw = arg; |
| |
| vw->x = 0; /* FIXME */ |
| vw->y = 0; |
| vw->chromakey = 0; |
| vw->flags = 0; |
| vw->clipcount = 0; |
| vw->width = se401->cwidth; |
| vw->height = se401->cheight; |
| return 0; |
| } |
| case VIDIOCGMBUF: |
| { |
| struct video_mbuf *vm = arg; |
| int i; |
| |
| memset(vm, 0, sizeof(*vm)); |
| vm->size = SE401_NUMFRAMES * se401->maxframesize; |
| vm->frames = SE401_NUMFRAMES; |
| for (i=0; i<SE401_NUMFRAMES; i++) |
| vm->offsets[i] = se401->maxframesize * i; |
| return 0; |
| } |
| case VIDIOCMCAPTURE: |
| { |
| struct video_mmap *vm = arg; |
| |
| if (vm->format != VIDEO_PALETTE_RGB24) |
| return -EINVAL; |
| if (vm->frame >= SE401_NUMFRAMES) |
| return -EINVAL; |
| if (se401->frame[vm->frame].grabstate != FRAME_UNUSED) |
| return -EBUSY; |
| |
| /* Is this according to the v4l spec??? */ |
| if (se401_set_size(se401, vm->width, vm->height)) |
| return -EINVAL; |
| se401->frame[vm->frame].grabstate=FRAME_READY; |
| |
| if (!se401->streaming) |
| se401_start_stream(se401); |
| |
| /* Set the picture properties */ |
| if (se401->framecount==0) |
| se401_send_pict(se401); |
| /* Calibrate the reset level after a few frames. */ |
| if (se401->framecount%20==1) |
| se401_auto_resetlevel(se401); |
| |
| return 0; |
| } |
| case VIDIOCSYNC: |
| { |
| int *frame = arg; |
| int ret=0; |
| |
| if(*frame <0 || *frame >= SE401_NUMFRAMES) |
| return -EINVAL; |
| |
| ret=se401_newframe(se401, *frame); |
| se401->frame[*frame].grabstate=FRAME_UNUSED; |
| return ret; |
| } |
| case VIDIOCGFBUF: |
| { |
| struct video_buffer *vb = arg; |
| |
| memset(vb, 0, sizeof(*vb)); |
| return 0; |
| } |
| case VIDIOCKEY: |
| return 0; |
| case VIDIOCCAPTURE: |
| return -EINVAL; |
| case VIDIOCSFBUF: |
| return -EINVAL; |
| case VIDIOCGTUNER: |
| case VIDIOCSTUNER: |
| return -EINVAL; |
| case VIDIOCGFREQ: |
| case VIDIOCSFREQ: |
| return -EINVAL; |
| case VIDIOCGAUDIO: |
| case VIDIOCSAUDIO: |
| return -EINVAL; |
| default: |
| return -ENOIOCTLCMD; |
| } /* end switch */ |
| |
| return 0; |
| } |
| |
| static int se401_ioctl(struct inode *inode, struct file *file, |
| unsigned int cmd, unsigned long arg) |
| { |
| return video_usercopy(inode, file, cmd, arg, se401_do_ioctl); |
| } |
| |
| static ssize_t se401_read(struct file *file, char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| int realcount=count, ret=0; |
| struct video_device *dev = file->private_data; |
| struct usb_se401 *se401 = (struct usb_se401 *)dev; |
| |
| |
| if (se401->dev == NULL) |
| return -EIO; |
| if (realcount > se401->cwidth*se401->cheight*3) |
| realcount=se401->cwidth*se401->cheight*3; |
| |
| /* Shouldn't happen: */ |
| if (se401->frame[0].grabstate==FRAME_GRABBING) |
| return -EBUSY; |
| se401->frame[0].grabstate=FRAME_READY; |
| se401->frame[1].grabstate=FRAME_UNUSED; |
| se401->curframe=0; |
| |
| if (!se401->streaming) |
| se401_start_stream(se401); |
| |
| /* Set the picture properties */ |
| if (se401->framecount==0) |
| se401_send_pict(se401); |
| /* Calibrate the reset level after a few frames. */ |
| if (se401->framecount%20==1) |
| se401_auto_resetlevel(se401); |
| |
| ret=se401_newframe(se401, 0); |
| |
| se401->frame[0].grabstate=FRAME_UNUSED; |
| if (ret) |
| return ret; |
| if (copy_to_user(buf, se401->frame[0].data, realcount)) |
| return -EFAULT; |
| |
| return realcount; |
| } |
| |
| static int se401_mmap(struct file *file, struct vm_area_struct *vma) |
| { |
| struct video_device *dev = file->private_data; |
| struct usb_se401 *se401 = (struct usb_se401 *)dev; |
| unsigned long start = vma->vm_start; |
| unsigned long size = vma->vm_end-vma->vm_start; |
| unsigned long page, pos; |
| |
| mutex_lock(&se401->lock); |
| |
| if (se401->dev == NULL) { |
| mutex_unlock(&se401->lock); |
| return -EIO; |
| } |
| if (size > (((SE401_NUMFRAMES * se401->maxframesize) + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1))) { |
| mutex_unlock(&se401->lock); |
| return -EINVAL; |
| } |
| pos = (unsigned long)se401->fbuf; |
| while (size > 0) { |
| page = vmalloc_to_pfn((void *)pos); |
| if (remap_pfn_range(vma, start, page, PAGE_SIZE, PAGE_SHARED)) { |
| mutex_unlock(&se401->lock); |
| return -EAGAIN; |
| } |
| start += PAGE_SIZE; |
| pos += PAGE_SIZE; |
| if (size > PAGE_SIZE) |
| size -= PAGE_SIZE; |
| else |
| size = 0; |
| } |
| mutex_unlock(&se401->lock); |
| |
| return 0; |
| } |
| |
| static const struct file_operations se401_fops = { |
| .owner = THIS_MODULE, |
| .open = se401_open, |
| .release = se401_close, |
| .read = se401_read, |
| .mmap = se401_mmap, |
| .ioctl = se401_ioctl, |
| #ifdef CONFIG_COMPAT |
| .compat_ioctl = v4l_compat_ioctl32, |
| #endif |
| .llseek = no_llseek, |
| }; |
| static struct video_device se401_template = { |
| .name = "se401 USB camera", |
| .fops = &se401_fops, |
| .release = video_device_release_empty, |
| }; |
| |
| |
| |
| /***************************/ |
| static int se401_init(struct usb_se401 *se401, int button) |
| { |
| int i=0, rc; |
| unsigned char cp[0x40]; |
| char temp[200]; |
| |
| /* led on */ |
| se401_sndctrl(1, se401, SE401_REQ_LED_CONTROL, 1, NULL, 0); |
| |
| /* get camera descriptor */ |
| rc=se401_sndctrl(0, se401, SE401_REQ_GET_CAMERA_DESCRIPTOR, 0, cp, sizeof(cp)); |
| if (cp[1]!=0x41) { |
| err("Wrong descriptor type"); |
| return 1; |
| } |
| sprintf (temp, "ExtraFeatures: %d", cp[3]); |
| |
| se401->sizes=cp[4]+cp[5]*256; |
| se401->width=kmalloc(se401->sizes*sizeof(int), GFP_KERNEL); |
| if (!se401->width) |
| return 1; |
| se401->height=kmalloc(se401->sizes*sizeof(int), GFP_KERNEL); |
| if (!se401->height) { |
| kfree(se401->width); |
| return 1; |
| } |
| for (i=0; i<se401->sizes; i++) { |
| se401->width[i]=cp[6+i*4+0]+cp[6+i*4+1]*256; |
| se401->height[i]=cp[6+i*4+2]+cp[6+i*4+3]*256; |
| } |
| sprintf (temp, "%s Sizes:", temp); |
| for (i=0; i<se401->sizes; i++) { |
| sprintf(temp, "%s %dx%d", temp, se401->width[i], se401->height[i]); |
| } |
| info("%s", temp); |
| se401->maxframesize=se401->width[se401->sizes-1]*se401->height[se401->sizes-1]*3; |
| |
| rc=se401_sndctrl(0, se401, SE401_REQ_GET_WIDTH, 0, cp, sizeof(cp)); |
| se401->cwidth=cp[0]+cp[1]*256; |
| rc=se401_sndctrl(0, se401, SE401_REQ_GET_HEIGHT, 0, cp, sizeof(cp)); |
| se401->cheight=cp[0]+cp[1]*256; |
| |
| if (!(cp[2] & SE401_FORMAT_BAYER)) { |
| err("Bayer format not supported!"); |
| return 1; |
| } |
| /* set output mode (BAYER) */ |
| se401_sndctrl(1, se401, SE401_REQ_SET_OUTPUT_MODE, SE401_FORMAT_BAYER, NULL, 0); |
| |
| rc=se401_sndctrl(0, se401, SE401_REQ_GET_BRT, 0, cp, sizeof(cp)); |
| se401->brightness=cp[0]+cp[1]*256; |
| /* some default values */ |
| se401->resetlevel=0x2d; |
| se401->rgain=0x20; |
| se401->ggain=0x20; |
| se401->bgain=0x20; |
| se401_set_exposure(se401, 20000); |
| se401->palette=VIDEO_PALETTE_RGB24; |
| se401->enhance=1; |
| se401->dropped=0; |
| se401->error=0; |
| se401->framecount=0; |
| se401->readcount=0; |
| |
| /* Start interrupt transfers for snapshot button */ |
| if (button) { |
| se401->inturb=usb_alloc_urb(0, GFP_KERNEL); |
| if (!se401->inturb) { |
| info("Allocation of inturb failed"); |
| return 1; |
| } |
| usb_fill_int_urb(se401->inturb, se401->dev, |
| usb_rcvintpipe(se401->dev, SE401_BUTTON_ENDPOINT), |
| &se401->button, sizeof(se401->button), |
| se401_button_irq, |
| se401, |
| 8 |
| ); |
| if (usb_submit_urb(se401->inturb, GFP_KERNEL)) { |
| info("int urb burned down"); |
| return 1; |
| } |
| } else |
| se401->inturb=NULL; |
| |
| /* Flash the led */ |
| se401_sndctrl(1, se401, SE401_REQ_CAMERA_POWER, 1, NULL, 0); |
| se401_sndctrl(1, se401, SE401_REQ_LED_CONTROL, 1, NULL, 0); |
| se401_sndctrl(1, se401, SE401_REQ_CAMERA_POWER, 0, NULL, 0); |
| se401_sndctrl(1, se401, SE401_REQ_LED_CONTROL, 0, NULL, 0); |
| |
| return 0; |
| } |
| |
| static int se401_probe(struct usb_interface *intf, |
| const struct usb_device_id *id) |
| { |
| struct usb_device *dev = interface_to_usbdev(intf); |
| struct usb_interface_descriptor *interface; |
| struct usb_se401 *se401; |
| char *camera_name=NULL; |
| int button=1; |
| |
| /* We don't handle multi-config cameras */ |
| if (dev->descriptor.bNumConfigurations != 1) |
| return -ENODEV; |
| |
| interface = &intf->cur_altsetting->desc; |
| |
| /* Is it an se401? */ |
| if (le16_to_cpu(dev->descriptor.idVendor) == 0x03e8 && |
| le16_to_cpu(dev->descriptor.idProduct) == 0x0004) { |
| camera_name="Endpoints/Aox SE401"; |
| } else if (le16_to_cpu(dev->descriptor.idVendor) == 0x0471 && |
| le16_to_cpu(dev->descriptor.idProduct) == 0x030b) { |
| camera_name="Philips PCVC665K"; |
| } else if (le16_to_cpu(dev->descriptor.idVendor) == 0x047d && |
| le16_to_cpu(dev->descriptor.idProduct) == 0x5001) { |
| camera_name="Kensington VideoCAM 67014"; |
| } else if (le16_to_cpu(dev->descriptor.idVendor) == 0x047d && |
| le16_to_cpu(dev->descriptor.idProduct) == 0x5002) { |
| camera_name="Kensington VideoCAM 6701(5/7)"; |
| } else if (le16_to_cpu(dev->descriptor.idVendor) == 0x047d && |
| le16_to_cpu(dev->descriptor.idProduct) == 0x5003) { |
| camera_name="Kensington VideoCAM 67016"; |
| button=0; |
| } else |
| return -ENODEV; |
| |
| /* Checking vendor/product should be enough, but what the hell */ |
| if (interface->bInterfaceClass != 0x00) |
| return -ENODEV; |
| if (interface->bInterfaceSubClass != 0x00) |
| return -ENODEV; |
| |
| /* We found one */ |
| info("SE401 camera found: %s", camera_name); |
| |
| if ((se401 = kzalloc(sizeof(*se401), GFP_KERNEL)) == NULL) { |
| err("couldn't kmalloc se401 struct"); |
| return -ENOMEM; |
| } |
| |
| se401->dev = dev; |
| se401->iface = interface->bInterfaceNumber; |
| se401->camera_name = camera_name; |
| |
| info("firmware version: %02x", le16_to_cpu(dev->descriptor.bcdDevice) & 255); |
| |
| if (se401_init(se401, button)) { |
| kfree(se401); |
| return -EIO; |
| } |
| |
| memcpy(&se401->vdev, &se401_template, sizeof(se401_template)); |
| memcpy(se401->vdev.name, se401->camera_name, strlen(se401->camera_name)); |
| init_waitqueue_head(&se401->wq); |
| mutex_init(&se401->lock); |
| wmb(); |
| |
| if (video_register_device(&se401->vdev, VFL_TYPE_GRABBER, video_nr) < 0) { |
| kfree(se401); |
| err("video_register_device failed"); |
| return -EIO; |
| } |
| info("registered new video device: video%d", se401->vdev.minor); |
| |
| usb_set_intfdata (intf, se401); |
| return 0; |
| } |
| |
| static void se401_disconnect(struct usb_interface *intf) |
| { |
| struct usb_se401 *se401 = usb_get_intfdata (intf); |
| |
| usb_set_intfdata (intf, NULL); |
| if (se401) { |
| video_unregister_device(&se401->vdev); |
| if (!se401->user){ |
| usb_se401_remove_disconnected(se401); |
| } else { |
| se401->frame[0].grabstate = FRAME_ERROR; |
| se401->frame[0].grabstate = FRAME_ERROR; |
| |
| se401->streaming = 0; |
| |
| wake_up_interruptible(&se401->wq); |
| se401->removed = 1; |
| } |
| } |
| } |
| |
| static struct usb_driver se401_driver = { |
| .name = "se401", |
| .id_table = device_table, |
| .probe = se401_probe, |
| .disconnect = se401_disconnect, |
| }; |
| |
| |
| |
| /**************************************************************************** |
| * |
| * Module routines |
| * |
| ***************************************************************************/ |
| |
| static int __init usb_se401_init(void) |
| { |
| info("SE401 usb camera driver version %s registering", version); |
| if (flickerless) |
| if (flickerless!=50 && flickerless!=60) { |
| info("Invallid flickerless value, use 0, 50 or 60."); |
| return -1; |
| } |
| return usb_register(&se401_driver); |
| } |
| |
| static void __exit usb_se401_exit(void) |
| { |
| usb_deregister(&se401_driver); |
| info("SE401 driver deregistered"); |
| } |
| |
| module_init(usb_se401_init); |
| module_exit(usb_se401_exit); |