946 lines
26 KiB
C
946 lines
26 KiB
C
/*
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* konicawc.c - konica webcam driver
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*
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* Author: Simon Evans <spse@secret.org.uk>
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*
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* Copyright (C) 2002 Simon Evans
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*
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* Licence: GPL
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*
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* Driver for USB webcams based on Konica chipset. This
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* chipset is used in Intel YC76 camera.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/input.h>
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#include <linux/usb_input.h>
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#include "usbvideo.h"
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#define MAX_BRIGHTNESS 108
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#define MAX_CONTRAST 108
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#define MAX_SATURATION 108
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#define MAX_SHARPNESS 108
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#define MAX_WHITEBAL 372
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#define MAX_SPEED 6
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#define MAX_CAMERAS 1
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#define DRIVER_VERSION "v1.4"
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#define DRIVER_DESC "Konica Webcam driver"
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enum ctrl_req {
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SetWhitebal = 0x01,
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SetBrightness = 0x02,
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SetSharpness = 0x03,
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SetContrast = 0x04,
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SetSaturation = 0x05,
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};
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enum frame_sizes {
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SIZE_160X120 = 0,
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SIZE_160X136 = 1,
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SIZE_176X144 = 2,
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SIZE_320X240 = 3,
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};
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#define MAX_FRAME_SIZE SIZE_320X240
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static struct usbvideo *cams;
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#ifdef CONFIG_USB_DEBUG
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static int debug;
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#define DEBUG(n, format, arg...) \
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if (n <= debug) { \
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printk(KERN_DEBUG __FILE__ ":%s(): " format "\n", __FUNCTION__ , ## arg); \
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}
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#else
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#define DEBUG(n, arg...)
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static const int debug = 0;
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#endif
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/* Some default values for initial camera settings,
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can be set by modprobe */
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static int size;
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static int speed = 6; /* Speed (fps) 0 (slowest) to 6 (fastest) */
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static int brightness = MAX_BRIGHTNESS/2;
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static int contrast = MAX_CONTRAST/2;
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static int saturation = MAX_SATURATION/2;
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static int sharpness = MAX_SHARPNESS/2;
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static int whitebal = 3*(MAX_WHITEBAL/4);
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static int spd_to_iface[] = { 1, 0, 3, 2, 4, 5, 6 };
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/* These FPS speeds are from the windows config box. They are
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* indexed on size (0-2) and speed (0-6). Divide by 3 to get the
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* real fps.
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*/
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static int spd_to_fps[][7] = { { 24, 40, 48, 60, 72, 80, 100 },
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{ 24, 40, 48, 60, 72, 80, 100 },
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{ 18, 30, 36, 45, 54, 60, 75 },
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{ 6, 10, 12, 15, 18, 21, 25 } };
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struct cam_size {
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u16 width;
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u16 height;
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u8 cmd;
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};
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static struct cam_size camera_sizes[] = { { 160, 120, 0x7 },
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{ 160, 136, 0xa },
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{ 176, 144, 0x4 },
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{ 320, 240, 0x5 } };
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struct konicawc {
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u8 brightness; /* camera uses 0 - 9, x11 for real value */
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u8 contrast; /* as above */
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u8 saturation; /* as above */
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u8 sharpness; /* as above */
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u8 white_bal; /* 0 - 33, x11 for real value */
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u8 speed; /* Stored as 0 - 6, used as index in spd_to_* (above) */
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u8 size; /* Frame Size */
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int height;
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int width;
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struct urb *sts_urb[USBVIDEO_NUMSBUF];
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u8 sts_buf[USBVIDEO_NUMSBUF][FRAMES_PER_DESC];
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struct urb *last_data_urb;
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int lastframe;
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int cur_frame_size; /* number of bytes in current frame size */
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int maxline; /* number of lines per frame */
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int yplanesz; /* Number of bytes in the Y plane */
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unsigned int buttonsts:1;
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#ifdef CONFIG_INPUT
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struct input_dev input;
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char input_physname[64];
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#endif
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};
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#define konicawc_set_misc(uvd, req, value, index) konicawc_ctrl_msg(uvd, USB_DIR_OUT, req, value, index, NULL, 0)
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#define konicawc_get_misc(uvd, req, value, index, buf, sz) konicawc_ctrl_msg(uvd, USB_DIR_IN, req, value, index, buf, sz)
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#define konicawc_set_value(uvd, value, index) konicawc_ctrl_msg(uvd, USB_DIR_OUT, 2, value, index, NULL, 0)
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static int konicawc_ctrl_msg(struct uvd *uvd, u8 dir, u8 request, u16 value, u16 index, void *buf, int len)
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{
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int retval = usb_control_msg(uvd->dev,
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dir ? usb_rcvctrlpipe(uvd->dev, 0) : usb_sndctrlpipe(uvd->dev, 0),
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request, 0x40 | dir, value, index, buf, len, 1000);
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return retval < 0 ? retval : 0;
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}
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static inline void konicawc_camera_on(struct uvd *uvd)
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{
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DEBUG(0, "camera on");
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konicawc_set_misc(uvd, 0x2, 1, 0x0b);
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}
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static inline void konicawc_camera_off(struct uvd *uvd)
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{
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DEBUG(0, "camera off");
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konicawc_set_misc(uvd, 0x2, 0, 0x0b);
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}
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static void konicawc_set_camera_size(struct uvd *uvd)
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{
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struct konicawc *cam = (struct konicawc *)uvd->user_data;
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konicawc_set_misc(uvd, 0x2, camera_sizes[cam->size].cmd, 0x08);
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cam->width = camera_sizes[cam->size].width;
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cam->height = camera_sizes[cam->size].height;
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cam->yplanesz = cam->height * cam->width;
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cam->cur_frame_size = (cam->yplanesz * 3) / 2;
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cam->maxline = cam->yplanesz / 256;
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uvd->videosize = VIDEOSIZE(cam->width, cam->height);
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}
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static int konicawc_setup_on_open(struct uvd *uvd)
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{
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struct konicawc *cam = (struct konicawc *)uvd->user_data;
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DEBUG(1, "setting brightness to %d (%d)", cam->brightness,
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cam->brightness * 11);
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konicawc_set_value(uvd, cam->brightness, SetBrightness);
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DEBUG(1, "setting white balance to %d (%d)", cam->white_bal,
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cam->white_bal * 11);
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konicawc_set_value(uvd, cam->white_bal, SetWhitebal);
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DEBUG(1, "setting contrast to %d (%d)", cam->contrast,
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cam->contrast * 11);
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konicawc_set_value(uvd, cam->contrast, SetContrast);
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DEBUG(1, "setting saturation to %d (%d)", cam->saturation,
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cam->saturation * 11);
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konicawc_set_value(uvd, cam->saturation, SetSaturation);
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DEBUG(1, "setting sharpness to %d (%d)", cam->sharpness,
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cam->sharpness * 11);
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konicawc_set_value(uvd, cam->sharpness, SetSharpness);
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konicawc_set_camera_size(uvd);
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cam->lastframe = -2;
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cam->buttonsts = 0;
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return 0;
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}
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static void konicawc_adjust_picture(struct uvd *uvd)
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{
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struct konicawc *cam = (struct konicawc *)uvd->user_data;
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konicawc_camera_off(uvd);
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DEBUG(1, "new brightness: %d", uvd->vpic.brightness);
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uvd->vpic.brightness = (uvd->vpic.brightness > MAX_BRIGHTNESS) ? MAX_BRIGHTNESS : uvd->vpic.brightness;
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if(cam->brightness != uvd->vpic.brightness / 11) {
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cam->brightness = uvd->vpic.brightness / 11;
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DEBUG(1, "setting brightness to %d (%d)", cam->brightness,
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cam->brightness * 11);
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konicawc_set_value(uvd, cam->brightness, SetBrightness);
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}
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DEBUG(1, "new contrast: %d", uvd->vpic.contrast);
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uvd->vpic.contrast = (uvd->vpic.contrast > MAX_CONTRAST) ? MAX_CONTRAST : uvd->vpic.contrast;
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if(cam->contrast != uvd->vpic.contrast / 11) {
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cam->contrast = uvd->vpic.contrast / 11;
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DEBUG(1, "setting contrast to %d (%d)", cam->contrast,
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cam->contrast * 11);
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konicawc_set_value(uvd, cam->contrast, SetContrast);
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}
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konicawc_camera_on(uvd);
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}
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static int konicawc_compress_iso(struct uvd *uvd, struct urb *dataurb, struct urb *stsurb)
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{
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char *cdata;
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int i, totlen = 0;
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unsigned char *status = stsurb->transfer_buffer;
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int keep = 0, discard = 0, bad = 0;
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struct konicawc *cam = (struct konicawc *)uvd->user_data;
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for (i = 0; i < dataurb->number_of_packets; i++) {
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int button = cam->buttonsts;
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unsigned char sts;
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int n = dataurb->iso_frame_desc[i].actual_length;
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int st = dataurb->iso_frame_desc[i].status;
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cdata = dataurb->transfer_buffer +
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dataurb->iso_frame_desc[i].offset;
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/* Detect and ignore errored packets */
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if (st < 0) {
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DEBUG(1, "Data error: packet=%d. len=%d. status=%d.",
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i, n, st);
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uvd->stats.iso_err_count++;
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continue;
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}
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/* Detect and ignore empty packets */
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if (n <= 0) {
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uvd->stats.iso_skip_count++;
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continue;
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}
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/* See what the status data said about the packet */
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sts = *(status+stsurb->iso_frame_desc[i].offset);
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/* sts: 0x80-0xff: frame start with frame number (ie 0-7f)
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* otherwise:
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* bit 0 0: keep packet
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* 1: drop packet (padding data)
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*
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* bit 4 0 button not clicked
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* 1 button clicked
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* button is used to `take a picture' (in software)
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*/
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if(sts < 0x80) {
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button = !!(sts & 0x40);
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sts &= ~0x40;
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}
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/* work out the button status, but don't do
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anything with it for now */
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if(button != cam->buttonsts) {
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DEBUG(2, "button: %sclicked", button ? "" : "un");
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cam->buttonsts = button;
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#ifdef CONFIG_INPUT
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input_report_key(&cam->input, BTN_0, cam->buttonsts);
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input_sync(&cam->input);
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#endif
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}
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if(sts == 0x01) { /* drop frame */
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discard++;
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continue;
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}
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if((sts > 0x01) && (sts < 0x80)) {
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info("unknown status %2.2x", sts);
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bad++;
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continue;
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}
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if(!sts && cam->lastframe == -2) {
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DEBUG(2, "dropping frame looking for image start");
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continue;
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}
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keep++;
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if(sts & 0x80) { /* frame start */
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unsigned char marker[] = { 0, 0xff, 0, 0x00 };
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if(cam->lastframe == -2) {
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DEBUG(2, "found initial image");
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cam->lastframe = -1;
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}
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marker[3] = sts & 0x7F;
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RingQueue_Enqueue(&uvd->dp, marker, 4);
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totlen += 4;
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}
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totlen += n; /* Little local accounting */
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RingQueue_Enqueue(&uvd->dp, cdata, n);
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}
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DEBUG(8, "finished: keep = %d discard = %d bad = %d added %d bytes",
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keep, discard, bad, totlen);
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return totlen;
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}
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static void resubmit_urb(struct uvd *uvd, struct urb *urb)
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{
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int i, ret;
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for (i = 0; i < FRAMES_PER_DESC; i++) {
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urb->iso_frame_desc[i].status = 0;
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}
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urb->dev = uvd->dev;
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urb->status = 0;
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ret = usb_submit_urb(urb, GFP_ATOMIC);
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DEBUG(3, "submitting urb of length %d", urb->transfer_buffer_length);
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if(ret)
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err("usb_submit_urb error (%d)", ret);
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}
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static void konicawc_isoc_irq(struct urb *urb, struct pt_regs *regs)
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{
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struct uvd *uvd = urb->context;
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struct konicawc *cam = (struct konicawc *)uvd->user_data;
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/* We don't want to do anything if we are about to be removed! */
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if (!CAMERA_IS_OPERATIONAL(uvd))
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return;
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if (!uvd->streaming) {
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DEBUG(1, "Not streaming, but interrupt!");
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return;
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}
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DEBUG(3, "got frame %d len = %d buflen =%d", urb->start_frame, urb->actual_length, urb->transfer_buffer_length);
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uvd->stats.urb_count++;
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if (urb->transfer_buffer_length > 32) {
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cam->last_data_urb = urb;
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return;
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}
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/* Copy the data received into ring queue */
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if(cam->last_data_urb) {
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int len = 0;
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if(urb->start_frame != cam->last_data_urb->start_frame)
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err("Lost sync on frames");
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else if (!urb->status && !cam->last_data_urb->status)
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len = konicawc_compress_iso(uvd, cam->last_data_urb, urb);
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resubmit_urb(uvd, cam->last_data_urb);
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resubmit_urb(uvd, urb);
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cam->last_data_urb = NULL;
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uvd->stats.urb_length = len;
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uvd->stats.data_count += len;
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if(len)
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RingQueue_WakeUpInterruptible(&uvd->dp);
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return;
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}
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return;
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}
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static int konicawc_start_data(struct uvd *uvd)
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{
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struct usb_device *dev = uvd->dev;
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int i, errFlag;
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struct konicawc *cam = (struct konicawc *)uvd->user_data;
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int pktsz;
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struct usb_interface *intf;
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struct usb_host_interface *interface = NULL;
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intf = usb_ifnum_to_if(dev, uvd->iface);
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if (intf)
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interface = usb_altnum_to_altsetting(intf,
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spd_to_iface[cam->speed]);
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if (!interface)
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return -ENXIO;
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pktsz = le16_to_cpu(interface->endpoint[1].desc.wMaxPacketSize);
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DEBUG(1, "pktsz = %d", pktsz);
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if (!CAMERA_IS_OPERATIONAL(uvd)) {
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err("Camera is not operational");
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return -EFAULT;
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}
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uvd->curframe = -1;
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konicawc_camera_on(uvd);
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/* Alternate interface 1 is is the biggest frame size */
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i = usb_set_interface(dev, uvd->iface, uvd->ifaceAltActive);
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if (i < 0) {
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err("usb_set_interface error");
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uvd->last_error = i;
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return -EBUSY;
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}
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/* We double buffer the Iso lists */
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for (i=0; i < USBVIDEO_NUMSBUF; i++) {
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int j, k;
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struct urb *urb = uvd->sbuf[i].urb;
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urb->dev = dev;
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urb->context = uvd;
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urb->pipe = usb_rcvisocpipe(dev, uvd->video_endp);
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urb->interval = 1;
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urb->transfer_flags = URB_ISO_ASAP;
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urb->transfer_buffer = uvd->sbuf[i].data;
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urb->complete = konicawc_isoc_irq;
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urb->number_of_packets = FRAMES_PER_DESC;
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urb->transfer_buffer_length = pktsz * FRAMES_PER_DESC;
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for (j=k=0; j < FRAMES_PER_DESC; j++, k += pktsz) {
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urb->iso_frame_desc[j].offset = k;
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urb->iso_frame_desc[j].length = pktsz;
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}
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urb = cam->sts_urb[i];
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urb->dev = dev;
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urb->context = uvd;
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urb->pipe = usb_rcvisocpipe(dev, uvd->video_endp-1);
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urb->interval = 1;
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urb->transfer_flags = URB_ISO_ASAP;
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urb->transfer_buffer = cam->sts_buf[i];
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urb->complete = konicawc_isoc_irq;
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urb->number_of_packets = FRAMES_PER_DESC;
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urb->transfer_buffer_length = FRAMES_PER_DESC;
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for (j=0; j < FRAMES_PER_DESC; j++) {
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urb->iso_frame_desc[j].offset = j;
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urb->iso_frame_desc[j].length = 1;
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}
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}
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cam->last_data_urb = NULL;
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/* Submit all URBs */
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for (i=0; i < USBVIDEO_NUMSBUF; i++) {
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errFlag = usb_submit_urb(cam->sts_urb[i], GFP_KERNEL);
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if (errFlag)
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err("usb_submit_isoc(%d) ret %d", i, errFlag);
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errFlag = usb_submit_urb(uvd->sbuf[i].urb, GFP_KERNEL);
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if (errFlag)
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err ("usb_submit_isoc(%d) ret %d", i, errFlag);
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}
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uvd->streaming = 1;
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DEBUG(1, "streaming=1 video_endp=$%02x", uvd->video_endp);
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return 0;
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}
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static void konicawc_stop_data(struct uvd *uvd)
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{
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int i, j;
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struct konicawc *cam;
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if ((uvd == NULL) || (!uvd->streaming) || (uvd->dev == NULL))
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return;
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konicawc_camera_off(uvd);
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uvd->streaming = 0;
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cam = (struct konicawc *)uvd->user_data;
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cam->last_data_urb = NULL;
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/* Unschedule all of the iso td's */
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for (i=0; i < USBVIDEO_NUMSBUF; i++) {
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usb_kill_urb(uvd->sbuf[i].urb);
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usb_kill_urb(cam->sts_urb[i]);
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}
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if (!uvd->remove_pending) {
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/* Set packet size to 0 */
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j = usb_set_interface(uvd->dev, uvd->iface, uvd->ifaceAltInactive);
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if (j < 0) {
|
|
err("usb_set_interface() error %d.", j);
|
|
uvd->last_error = j;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
static void konicawc_process_isoc(struct uvd *uvd, struct usbvideo_frame *frame)
|
|
{
|
|
struct konicawc *cam = (struct konicawc *)uvd->user_data;
|
|
int maxline = cam->maxline;
|
|
int yplanesz = cam->yplanesz;
|
|
|
|
assert(frame != NULL);
|
|
|
|
DEBUG(5, "maxline = %d yplanesz = %d", maxline, yplanesz);
|
|
DEBUG(3, "Frame state = %d", frame->scanstate);
|
|
|
|
if(frame->scanstate == ScanState_Scanning) {
|
|
int drop = 0;
|
|
int curframe;
|
|
int fdrops = 0;
|
|
DEBUG(3, "Searching for marker, queue len = %d", RingQueue_GetLength(&uvd->dp));
|
|
while(RingQueue_GetLength(&uvd->dp) >= 4) {
|
|
if ((RING_QUEUE_PEEK(&uvd->dp, 0) == 0x00) &&
|
|
(RING_QUEUE_PEEK(&uvd->dp, 1) == 0xff) &&
|
|
(RING_QUEUE_PEEK(&uvd->dp, 2) == 0x00) &&
|
|
(RING_QUEUE_PEEK(&uvd->dp, 3) < 0x80)) {
|
|
curframe = RING_QUEUE_PEEK(&uvd->dp, 3);
|
|
if(cam->lastframe >= 0) {
|
|
fdrops = (0x80 + curframe - cam->lastframe) & 0x7F;
|
|
fdrops--;
|
|
if(fdrops) {
|
|
info("Dropped %d frames (%d -> %d)", fdrops,
|
|
cam->lastframe, curframe);
|
|
}
|
|
}
|
|
cam->lastframe = curframe;
|
|
frame->curline = 0;
|
|
frame->scanstate = ScanState_Lines;
|
|
RING_QUEUE_DEQUEUE_BYTES(&uvd->dp, 4);
|
|
break;
|
|
}
|
|
RING_QUEUE_DEQUEUE_BYTES(&uvd->dp, 1);
|
|
drop++;
|
|
}
|
|
if(drop)
|
|
DEBUG(2, "dropped %d bytes looking for new frame", drop);
|
|
}
|
|
|
|
if(frame->scanstate == ScanState_Scanning)
|
|
return;
|
|
|
|
/* Try to move data from queue into frame buffer
|
|
* We get data in blocks of 384 bytes made up of:
|
|
* 256 Y, 64 U, 64 V.
|
|
* This needs to be written out as a Y plane, a U plane and a V plane.
|
|
*/
|
|
|
|
while ( frame->curline < maxline && (RingQueue_GetLength(&uvd->dp) >= 384)) {
|
|
/* Y */
|
|
RingQueue_Dequeue(&uvd->dp, frame->data + (frame->curline * 256), 256);
|
|
/* U */
|
|
RingQueue_Dequeue(&uvd->dp, frame->data + yplanesz + (frame->curline * 64), 64);
|
|
/* V */
|
|
RingQueue_Dequeue(&uvd->dp, frame->data + (5 * yplanesz)/4 + (frame->curline * 64), 64);
|
|
frame->seqRead_Length += 384;
|
|
frame->curline++;
|
|
}
|
|
/* See if we filled the frame */
|
|
if (frame->curline == maxline) {
|
|
DEBUG(5, "got whole frame");
|
|
|
|
frame->frameState = FrameState_Done_Hold;
|
|
frame->curline = 0;
|
|
uvd->curframe = -1;
|
|
uvd->stats.frame_num++;
|
|
}
|
|
}
|
|
|
|
|
|
static int konicawc_find_fps(int size, int fps)
|
|
{
|
|
int i;
|
|
|
|
fps *= 3;
|
|
DEBUG(1, "konica_find_fps: size = %d fps = %d", size, fps);
|
|
if(fps <= spd_to_fps[size][0])
|
|
return 0;
|
|
|
|
if(fps >= spd_to_fps[size][MAX_SPEED])
|
|
return MAX_SPEED;
|
|
|
|
for(i = 0; i < MAX_SPEED; i++) {
|
|
if((fps >= spd_to_fps[size][i]) && (fps <= spd_to_fps[size][i+1])) {
|
|
DEBUG(2, "fps %d between %d and %d", fps, i, i+1);
|
|
if( (fps - spd_to_fps[size][i]) < (spd_to_fps[size][i+1] - fps))
|
|
return i;
|
|
else
|
|
return i+1;
|
|
}
|
|
}
|
|
return MAX_SPEED+1;
|
|
}
|
|
|
|
|
|
static int konicawc_set_video_mode(struct uvd *uvd, struct video_window *vw)
|
|
{
|
|
struct konicawc *cam = (struct konicawc *)uvd->user_data;
|
|
int newspeed = cam->speed;
|
|
int newsize;
|
|
int x = vw->width;
|
|
int y = vw->height;
|
|
int fps = vw->flags;
|
|
|
|
if(x > 0 && y > 0) {
|
|
DEBUG(2, "trying to find size %d,%d", x, y);
|
|
for(newsize = 0; newsize <= MAX_FRAME_SIZE; newsize++) {
|
|
if((camera_sizes[newsize].width == x) && (camera_sizes[newsize].height == y))
|
|
break;
|
|
}
|
|
} else {
|
|
newsize = cam->size;
|
|
}
|
|
|
|
if(newsize > MAX_FRAME_SIZE) {
|
|
DEBUG(1, "couldn't find size %d,%d", x, y);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if(fps > 0) {
|
|
DEBUG(1, "trying to set fps to %d", fps);
|
|
newspeed = konicawc_find_fps(newsize, fps);
|
|
DEBUG(1, "find_fps returned %d (%d)", newspeed, spd_to_fps[newsize][newspeed]);
|
|
}
|
|
|
|
if(newspeed > MAX_SPEED)
|
|
return -EINVAL;
|
|
|
|
DEBUG(1, "setting size to %d speed to %d", newsize, newspeed);
|
|
if((newsize == cam->size) && (newspeed == cam->speed)) {
|
|
DEBUG(1, "Nothing to do");
|
|
return 0;
|
|
}
|
|
DEBUG(0, "setting to %dx%d @ %d fps", camera_sizes[newsize].width,
|
|
camera_sizes[newsize].height, spd_to_fps[newsize][newspeed]/3);
|
|
|
|
konicawc_stop_data(uvd);
|
|
uvd->ifaceAltActive = spd_to_iface[newspeed];
|
|
DEBUG(1, "new interface = %d", uvd->ifaceAltActive);
|
|
cam->speed = newspeed;
|
|
|
|
if(cam->size != newsize) {
|
|
cam->size = newsize;
|
|
konicawc_set_camera_size(uvd);
|
|
}
|
|
|
|
/* Flush the input queue and clear any current frame in progress */
|
|
|
|
RingQueue_Flush(&uvd->dp);
|
|
cam->lastframe = -2;
|
|
if(uvd->curframe != -1) {
|
|
uvd->frame[uvd->curframe].curline = 0;
|
|
uvd->frame[uvd->curframe].seqRead_Length = 0;
|
|
uvd->frame[uvd->curframe].seqRead_Index = 0;
|
|
}
|
|
|
|
konicawc_start_data(uvd);
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int konicawc_calculate_fps(struct uvd *uvd)
|
|
{
|
|
struct konicawc *cam = uvd->user_data;
|
|
return spd_to_fps[cam->size][cam->speed]/3;
|
|
}
|
|
|
|
|
|
static void konicawc_configure_video(struct uvd *uvd)
|
|
{
|
|
struct konicawc *cam = (struct konicawc *)uvd->user_data;
|
|
u8 buf[2];
|
|
|
|
memset(&uvd->vpic, 0, sizeof(uvd->vpic));
|
|
memset(&uvd->vpic_old, 0x55, sizeof(uvd->vpic_old));
|
|
|
|
RESTRICT_TO_RANGE(brightness, 0, MAX_BRIGHTNESS);
|
|
RESTRICT_TO_RANGE(contrast, 0, MAX_CONTRAST);
|
|
RESTRICT_TO_RANGE(saturation, 0, MAX_SATURATION);
|
|
RESTRICT_TO_RANGE(sharpness, 0, MAX_SHARPNESS);
|
|
RESTRICT_TO_RANGE(whitebal, 0, MAX_WHITEBAL);
|
|
|
|
cam->brightness = brightness / 11;
|
|
cam->contrast = contrast / 11;
|
|
cam->saturation = saturation / 11;
|
|
cam->sharpness = sharpness / 11;
|
|
cam->white_bal = whitebal / 11;
|
|
|
|
uvd->vpic.colour = 108;
|
|
uvd->vpic.hue = 108;
|
|
uvd->vpic.brightness = brightness;
|
|
uvd->vpic.contrast = contrast;
|
|
uvd->vpic.whiteness = whitebal;
|
|
uvd->vpic.depth = 6;
|
|
uvd->vpic.palette = VIDEO_PALETTE_YUV420P;
|
|
|
|
memset(&uvd->vcap, 0, sizeof(uvd->vcap));
|
|
strcpy(uvd->vcap.name, "Konica Webcam");
|
|
uvd->vcap.type = VID_TYPE_CAPTURE;
|
|
uvd->vcap.channels = 1;
|
|
uvd->vcap.audios = 0;
|
|
uvd->vcap.minwidth = camera_sizes[SIZE_160X120].width;
|
|
uvd->vcap.minheight = camera_sizes[SIZE_160X120].height;
|
|
uvd->vcap.maxwidth = camera_sizes[SIZE_320X240].width;
|
|
uvd->vcap.maxheight = camera_sizes[SIZE_320X240].height;
|
|
|
|
memset(&uvd->vchan, 0, sizeof(uvd->vchan));
|
|
uvd->vchan.flags = 0 ;
|
|
uvd->vchan.tuners = 0;
|
|
uvd->vchan.channel = 0;
|
|
uvd->vchan.type = VIDEO_TYPE_CAMERA;
|
|
strcpy(uvd->vchan.name, "Camera");
|
|
|
|
/* Talk to device */
|
|
DEBUG(1, "device init");
|
|
if(!konicawc_get_misc(uvd, 0x3, 0, 0x10, buf, 2))
|
|
DEBUG(2, "3,10 -> %2.2x %2.2x", buf[0], buf[1]);
|
|
if(!konicawc_get_misc(uvd, 0x3, 0, 0x10, buf, 2))
|
|
DEBUG(2, "3,10 -> %2.2x %2.2x", buf[0], buf[1]);
|
|
if(konicawc_set_misc(uvd, 0x2, 0, 0xd))
|
|
DEBUG(2, "2,0,d failed");
|
|
DEBUG(1, "setting initial values");
|
|
}
|
|
|
|
|
|
static int konicawc_probe(struct usb_interface *intf, const struct usb_device_id *devid)
|
|
{
|
|
struct usb_device *dev = interface_to_usbdev(intf);
|
|
struct uvd *uvd = NULL;
|
|
int ix, i, nas;
|
|
int actInterface=-1, inactInterface=-1, maxPS=0;
|
|
unsigned char video_ep = 0;
|
|
|
|
DEBUG(1, "konicawc_probe(%p)", intf);
|
|
|
|
/* We don't handle multi-config cameras */
|
|
if (dev->descriptor.bNumConfigurations != 1)
|
|
return -ENODEV;
|
|
|
|
info("Konica Webcam (rev. 0x%04x)", le16_to_cpu(dev->descriptor.bcdDevice));
|
|
RESTRICT_TO_RANGE(speed, 0, MAX_SPEED);
|
|
|
|
/* Validate found interface: must have one ISO endpoint */
|
|
nas = intf->num_altsetting;
|
|
if (nas != 8) {
|
|
err("Incorrect number of alternate settings (%d) for this camera!", nas);
|
|
return -ENODEV;
|
|
}
|
|
/* Validate all alternate settings */
|
|
for (ix=0; ix < nas; ix++) {
|
|
const struct usb_host_interface *interface;
|
|
const struct usb_endpoint_descriptor *endpoint;
|
|
|
|
interface = &intf->altsetting[ix];
|
|
i = interface->desc.bAlternateSetting;
|
|
if (interface->desc.bNumEndpoints != 2) {
|
|
err("Interface %d. has %u. endpoints!",
|
|
interface->desc.bInterfaceNumber,
|
|
(unsigned)(interface->desc.bNumEndpoints));
|
|
return -ENODEV;
|
|
}
|
|
endpoint = &interface->endpoint[1].desc;
|
|
DEBUG(1, "found endpoint: addr: 0x%2.2x maxps = 0x%4.4x",
|
|
endpoint->bEndpointAddress, le16_to_cpu(endpoint->wMaxPacketSize));
|
|
if (video_ep == 0)
|
|
video_ep = endpoint->bEndpointAddress;
|
|
else if (video_ep != endpoint->bEndpointAddress) {
|
|
err("Alternate settings have different endpoint addresses!");
|
|
return -ENODEV;
|
|
}
|
|
if ((endpoint->bmAttributes & 0x03) != 0x01) {
|
|
err("Interface %d. has non-ISO endpoint!",
|
|
interface->desc.bInterfaceNumber);
|
|
return -ENODEV;
|
|
}
|
|
if ((endpoint->bEndpointAddress & 0x80) == 0) {
|
|
err("Interface %d. has ISO OUT endpoint!",
|
|
interface->desc.bInterfaceNumber);
|
|
return -ENODEV;
|
|
}
|
|
if (le16_to_cpu(endpoint->wMaxPacketSize) == 0) {
|
|
if (inactInterface < 0)
|
|
inactInterface = i;
|
|
else {
|
|
err("More than one inactive alt. setting!");
|
|
return -ENODEV;
|
|
}
|
|
} else {
|
|
if (i == spd_to_iface[speed]) {
|
|
/* This one is the requested one */
|
|
actInterface = i;
|
|
}
|
|
}
|
|
if (le16_to_cpu(endpoint->wMaxPacketSize) > maxPS)
|
|
maxPS = le16_to_cpu(endpoint->wMaxPacketSize);
|
|
}
|
|
if(actInterface == -1) {
|
|
err("Cant find required endpoint");
|
|
return -ENODEV;
|
|
}
|
|
|
|
DEBUG(1, "Selecting requested active setting=%d. maxPS=%d.", actInterface, maxPS);
|
|
|
|
uvd = usbvideo_AllocateDevice(cams);
|
|
if (uvd != NULL) {
|
|
struct konicawc *cam = (struct konicawc *)(uvd->user_data);
|
|
/* Here uvd is a fully allocated uvd object */
|
|
for(i = 0; i < USBVIDEO_NUMSBUF; i++) {
|
|
cam->sts_urb[i] = usb_alloc_urb(FRAMES_PER_DESC, GFP_KERNEL);
|
|
if(cam->sts_urb[i] == NULL) {
|
|
while(i--) {
|
|
usb_free_urb(cam->sts_urb[i]);
|
|
}
|
|
err("can't allocate urbs");
|
|
return -ENOMEM;
|
|
}
|
|
}
|
|
cam->speed = speed;
|
|
RESTRICT_TO_RANGE(size, SIZE_160X120, SIZE_320X240);
|
|
cam->width = camera_sizes[size].width;
|
|
cam->height = camera_sizes[size].height;
|
|
cam->size = size;
|
|
|
|
uvd->flags = 0;
|
|
uvd->debug = debug;
|
|
uvd->dev = dev;
|
|
uvd->iface = intf->altsetting->desc.bInterfaceNumber;
|
|
uvd->ifaceAltInactive = inactInterface;
|
|
uvd->ifaceAltActive = actInterface;
|
|
uvd->video_endp = video_ep;
|
|
uvd->iso_packet_len = maxPS;
|
|
uvd->paletteBits = 1L << VIDEO_PALETTE_YUV420P;
|
|
uvd->defaultPalette = VIDEO_PALETTE_YUV420P;
|
|
uvd->canvas = VIDEOSIZE(320, 240);
|
|
uvd->videosize = VIDEOSIZE(cam->width, cam->height);
|
|
|
|
/* Initialize konicawc specific data */
|
|
konicawc_configure_video(uvd);
|
|
|
|
i = usbvideo_RegisterVideoDevice(uvd);
|
|
uvd->max_frame_size = (320 * 240 * 3)/2;
|
|
if (i != 0) {
|
|
err("usbvideo_RegisterVideoDevice() failed.");
|
|
uvd = NULL;
|
|
}
|
|
#ifdef CONFIG_INPUT
|
|
/* Register input device for button */
|
|
memset(&cam->input, 0, sizeof(struct input_dev));
|
|
cam->input.name = "Konicawc snapshot button";
|
|
cam->input.private = cam;
|
|
cam->input.evbit[0] = BIT(EV_KEY);
|
|
cam->input.keybit[LONG(BTN_0)] = BIT(BTN_0);
|
|
usb_to_input_id(dev, &cam->input.id);
|
|
input_register_device(&cam->input);
|
|
|
|
usb_make_path(dev, cam->input_physname, 56);
|
|
strcat(cam->input_physname, "/input0");
|
|
cam->input.phys = cam->input_physname;
|
|
info("konicawc: %s on %s\n", cam->input.name, cam->input.phys);
|
|
#endif
|
|
}
|
|
|
|
if (uvd) {
|
|
usb_set_intfdata (intf, uvd);
|
|
return 0;
|
|
}
|
|
return -EIO;
|
|
}
|
|
|
|
|
|
static void konicawc_free_uvd(struct uvd *uvd)
|
|
{
|
|
int i;
|
|
struct konicawc *cam = (struct konicawc *)uvd->user_data;
|
|
|
|
#ifdef CONFIG_INPUT
|
|
input_unregister_device(&cam->input);
|
|
#endif
|
|
for (i=0; i < USBVIDEO_NUMSBUF; i++) {
|
|
usb_free_urb(cam->sts_urb[i]);
|
|
cam->sts_urb[i] = NULL;
|
|
}
|
|
}
|
|
|
|
|
|
static struct usb_device_id id_table[] = {
|
|
{ USB_DEVICE(0x04c8, 0x0720) }, /* Intel YC 76 */
|
|
{ } /* Terminating entry */
|
|
};
|
|
|
|
|
|
static int __init konicawc_init(void)
|
|
{
|
|
struct usbvideo_cb cbTbl;
|
|
info(DRIVER_DESC " " DRIVER_VERSION);
|
|
memset(&cbTbl, 0, sizeof(cbTbl));
|
|
cbTbl.probe = konicawc_probe;
|
|
cbTbl.setupOnOpen = konicawc_setup_on_open;
|
|
cbTbl.processData = konicawc_process_isoc;
|
|
cbTbl.getFPS = konicawc_calculate_fps;
|
|
cbTbl.setVideoMode = konicawc_set_video_mode;
|
|
cbTbl.startDataPump = konicawc_start_data;
|
|
cbTbl.stopDataPump = konicawc_stop_data;
|
|
cbTbl.adjustPicture = konicawc_adjust_picture;
|
|
cbTbl.userFree = konicawc_free_uvd;
|
|
return usbvideo_register(
|
|
&cams,
|
|
MAX_CAMERAS,
|
|
sizeof(struct konicawc),
|
|
"konicawc",
|
|
&cbTbl,
|
|
THIS_MODULE,
|
|
id_table);
|
|
}
|
|
|
|
|
|
static void __exit konicawc_cleanup(void)
|
|
{
|
|
usbvideo_Deregister(&cams);
|
|
}
|
|
|
|
|
|
MODULE_DEVICE_TABLE(usb, id_table);
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_AUTHOR("Simon Evans <spse@secret.org.uk>");
|
|
MODULE_DESCRIPTION(DRIVER_DESC);
|
|
module_param(speed, int, 0);
|
|
MODULE_PARM_DESC(speed, "Initial speed: 0 (slowest) - 6 (fastest)");
|
|
module_param(size, int, 0);
|
|
MODULE_PARM_DESC(size, "Initial Size 0: 160x120 1: 160x136 2: 176x144 3: 320x240");
|
|
module_param(brightness, int, 0);
|
|
MODULE_PARM_DESC(brightness, "Initial brightness 0 - 108");
|
|
module_param(contrast, int, 0);
|
|
MODULE_PARM_DESC(contrast, "Initial contrast 0 - 108");
|
|
module_param(saturation, int, 0);
|
|
MODULE_PARM_DESC(saturation, "Initial saturation 0 - 108");
|
|
module_param(sharpness, int, 0);
|
|
MODULE_PARM_DESC(sharpness, "Initial brightness 0 - 108");
|
|
module_param(whitebal, int, 0);
|
|
MODULE_PARM_DESC(whitebal, "Initial white balance 0 - 363");
|
|
|
|
#ifdef CONFIG_USB_DEBUG
|
|
module_param(debug, int, S_IRUGO | S_IWUSR);
|
|
MODULE_PARM_DESC(debug, "Debug level: 0-9 (default=0)");
|
|
#endif
|
|
|
|
module_init(konicawc_init);
|
|
module_exit(konicawc_cleanup);
|