--- /dev/null
+/*
+ * konicawc.c - konica webcam driver
+ *
+ * Author: Simon Evans <spse@secret.org.uk>
+ *
+ * Copyright (C) 2002 Simon Evans
+ *
+ * Licence: GPL
+ *
+ * Driver for USB webcams based on Konica chipset. This
+ * chipset is used in Intel YC76 camera.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/usb_input.h>
+
+#include "usbvideo.h"
+
+#define MAX_BRIGHTNESS 108
+#define MAX_CONTRAST 108
+#define MAX_SATURATION 108
+#define MAX_SHARPNESS 108
+#define MAX_WHITEBAL 372
+#define MAX_SPEED 6
+
+
+#define MAX_CAMERAS 1
+
+#define DRIVER_VERSION "v1.4"
+#define DRIVER_DESC "Konica Webcam driver"
+
+enum ctrl_req {
+ SetWhitebal = 0x01,
+ SetBrightness = 0x02,
+ SetSharpness = 0x03,
+ SetContrast = 0x04,
+ SetSaturation = 0x05,
+};
+
+
+enum frame_sizes {
+ SIZE_160X120 = 0,
+ SIZE_160X136 = 1,
+ SIZE_176X144 = 2,
+ SIZE_320X240 = 3,
+
+};
+
+#define MAX_FRAME_SIZE SIZE_320X240
+
+static struct usbvideo *cams;
+
+#ifdef CONFIG_USB_DEBUG
+static int debug;
+#define DEBUG(n, format, arg...) \
+ if (n <= debug) { \
+ printk(KERN_DEBUG __FILE__ ":%s(): " format "\n", __FUNCTION__ , ## arg); \
+ }
+#else
+#define DEBUG(n, arg...)
+static const int debug = 0;
+#endif
+
+
+/* Some default values for initial camera settings,
+ can be set by modprobe */
+
+static int size;
+static int speed = 6; /* Speed (fps) 0 (slowest) to 6 (fastest) */
+static int brightness = MAX_BRIGHTNESS/2;
+static int contrast = MAX_CONTRAST/2;
+static int saturation = MAX_SATURATION/2;
+static int sharpness = MAX_SHARPNESS/2;
+static int whitebal = 3*(MAX_WHITEBAL/4);
+
+static const int spd_to_iface[] = { 1, 0, 3, 2, 4, 5, 6 };
+
+/* These FPS speeds are from the windows config box. They are
+ * indexed on size (0-2) and speed (0-6). Divide by 3 to get the
+ * real fps.
+ */
+
+static const int spd_to_fps[][7] = { { 24, 40, 48, 60, 72, 80, 100 },
+ { 24, 40, 48, 60, 72, 80, 100 },
+ { 18, 30, 36, 45, 54, 60, 75 },
+ { 6, 10, 12, 15, 18, 21, 25 } };
+
+struct cam_size {
+ u16 width;
+ u16 height;
+ u8 cmd;
+};
+
+static const struct cam_size camera_sizes[] = { { 160, 120, 0x7 },
+ { 160, 136, 0xa },
+ { 176, 144, 0x4 },
+ { 320, 240, 0x5 } };
+
+struct konicawc {
+ u8 brightness; /* camera uses 0 - 9, x11 for real value */
+ u8 contrast; /* as above */
+ u8 saturation; /* as above */
+ u8 sharpness; /* as above */
+ u8 white_bal; /* 0 - 33, x11 for real value */
+ u8 speed; /* Stored as 0 - 6, used as index in spd_to_* (above) */
+ u8 size; /* Frame Size */
+ int height;
+ int width;
+ struct urb *sts_urb[USBVIDEO_NUMSBUF];
+ u8 sts_buf[USBVIDEO_NUMSBUF][FRAMES_PER_DESC];
+ struct urb *last_data_urb;
+ int lastframe;
+ int cur_frame_size; /* number of bytes in current frame size */
+ int maxline; /* number of lines per frame */
+ int yplanesz; /* Number of bytes in the Y plane */
+ unsigned int buttonsts:1;
+#ifdef CONFIG_INPUT
+ struct input_dev *input;
+ char input_physname[64];
+#endif
+};
+
+
+#define konicawc_set_misc(uvd, req, value, index) konicawc_ctrl_msg(uvd, USB_DIR_OUT, req, value, index, NULL, 0)
+#define konicawc_get_misc(uvd, req, value, index, buf, sz) konicawc_ctrl_msg(uvd, USB_DIR_IN, req, value, index, buf, sz)
+#define konicawc_set_value(uvd, value, index) konicawc_ctrl_msg(uvd, USB_DIR_OUT, 2, value, index, NULL, 0)
+
+
+static int konicawc_ctrl_msg(struct uvd *uvd, u8 dir, u8 request, u16 value, u16 index, void *buf, int len)
+{
+ int retval = usb_control_msg(uvd->dev,
+ dir ? usb_rcvctrlpipe(uvd->dev, 0) : usb_sndctrlpipe(uvd->dev, 0),
+ request, 0x40 | dir, value, index, buf, len, 1000);
+ return retval < 0 ? retval : 0;
+}
+
+
+static inline void konicawc_camera_on(struct uvd *uvd)
+{
+ DEBUG(0, "camera on");
+ konicawc_set_misc(uvd, 0x2, 1, 0x0b);
+}
+
+
+static inline void konicawc_camera_off(struct uvd *uvd)
+{
+ DEBUG(0, "camera off");
+ konicawc_set_misc(uvd, 0x2, 0, 0x0b);
+}
+
+
+static void konicawc_set_camera_size(struct uvd *uvd)
+{
+ struct konicawc *cam = (struct konicawc *)uvd->user_data;
+
+ konicawc_set_misc(uvd, 0x2, camera_sizes[cam->size].cmd, 0x08);
+ cam->width = camera_sizes[cam->size].width;
+ cam->height = camera_sizes[cam->size].height;
+ cam->yplanesz = cam->height * cam->width;
+ cam->cur_frame_size = (cam->yplanesz * 3) / 2;
+ cam->maxline = cam->yplanesz / 256;
+ uvd->videosize = VIDEOSIZE(cam->width, cam->height);
+}
+
+
+static int konicawc_setup_on_open(struct uvd *uvd)
+{
+ struct konicawc *cam = (struct konicawc *)uvd->user_data;
+
+ DEBUG(1, "setting brightness to %d (%d)", cam->brightness,
+ cam->brightness * 11);
+ konicawc_set_value(uvd, cam->brightness, SetBrightness);
+ DEBUG(1, "setting white balance to %d (%d)", cam->white_bal,
+ cam->white_bal * 11);
+ konicawc_set_value(uvd, cam->white_bal, SetWhitebal);
+ DEBUG(1, "setting contrast to %d (%d)", cam->contrast,
+ cam->contrast * 11);
+ konicawc_set_value(uvd, cam->contrast, SetContrast);
+ DEBUG(1, "setting saturation to %d (%d)", cam->saturation,
+ cam->saturation * 11);
+ konicawc_set_value(uvd, cam->saturation, SetSaturation);
+ DEBUG(1, "setting sharpness to %d (%d)", cam->sharpness,
+ cam->sharpness * 11);
+ konicawc_set_value(uvd, cam->sharpness, SetSharpness);
+ konicawc_set_camera_size(uvd);
+ cam->lastframe = -2;
+ cam->buttonsts = 0;
+ return 0;
+}
+
+
+static void konicawc_adjust_picture(struct uvd *uvd)
+{
+ struct konicawc *cam = (struct konicawc *)uvd->user_data;
+
+ konicawc_camera_off(uvd);
+ DEBUG(1, "new brightness: %d", uvd->vpic.brightness);
+ uvd->vpic.brightness = (uvd->vpic.brightness > MAX_BRIGHTNESS) ? MAX_BRIGHTNESS : uvd->vpic.brightness;
+ if(cam->brightness != uvd->vpic.brightness / 11) {
+ cam->brightness = uvd->vpic.brightness / 11;
+ DEBUG(1, "setting brightness to %d (%d)", cam->brightness,
+ cam->brightness * 11);
+ konicawc_set_value(uvd, cam->brightness, SetBrightness);
+ }
+
+ DEBUG(1, "new contrast: %d", uvd->vpic.contrast);
+ uvd->vpic.contrast = (uvd->vpic.contrast > MAX_CONTRAST) ? MAX_CONTRAST : uvd->vpic.contrast;
+ if(cam->contrast != uvd->vpic.contrast / 11) {
+ cam->contrast = uvd->vpic.contrast / 11;
+ DEBUG(1, "setting contrast to %d (%d)", cam->contrast,
+ cam->contrast * 11);
+ konicawc_set_value(uvd, cam->contrast, SetContrast);
+ }
+ konicawc_camera_on(uvd);
+}
+
+#ifdef CONFIG_INPUT
+
+static void konicawc_register_input(struct konicawc *cam, struct usb_device *dev)
+{
+ struct input_dev *input_dev;
+
+ usb_make_path(dev, cam->input_physname, sizeof(cam->input_physname));
+ strncat(cam->input_physname, "/input0", sizeof(cam->input_physname));
+
+ cam->input = input_dev = input_allocate_device();
+ if (!input_dev) {
+ warn("Not enough memory for camera's input device\n");
+ return;
+ }
+
+ input_dev->name = "Konicawc snapshot button";
+ input_dev->phys = cam->input_physname;
+ usb_to_input_id(dev, &input_dev->id);
+ input_dev->cdev.dev = &dev->dev;
+
+ input_dev->evbit[0] = BIT(EV_KEY);
+ input_dev->keybit[LONG(BTN_0)] = BIT(BTN_0);
+
+ input_dev->private = cam;
+
+ input_register_device(cam->input);
+}
+
+static void konicawc_unregister_input(struct konicawc *cam)
+{
+ if (cam->input) {
+ input_unregister_device(cam->input);
+ cam->input = NULL;
+ }
+}
+
+static void konicawc_report_buttonstat(struct konicawc *cam)
+{
+ if (cam->input) {
+ input_report_key(cam->input, BTN_0, cam->buttonsts);
+ input_sync(cam->input);
+ }
+}
+
+#else
+
+static inline void konicawc_register_input(struct konicawc *cam, struct usb_device *dev) { }
+static inline void konicawc_unregister_input(struct konicawc *cam) { }
+static inline void konicawc_report_buttonstat(struct konicawc *cam) { }
+
+#endif /* CONFIG_INPUT */
+
+static int konicawc_compress_iso(struct uvd *uvd, struct urb *dataurb, struct urb *stsurb)
+{
+ char *cdata;
+ int i, totlen = 0;
+ unsigned char *status = stsurb->transfer_buffer;
+ int keep = 0, discard = 0, bad = 0;
+ struct konicawc *cam = (struct konicawc *)uvd->user_data;
+
+ for (i = 0; i < dataurb->number_of_packets; i++) {
+ int button = cam->buttonsts;
+ unsigned char sts;
+ int n = dataurb->iso_frame_desc[i].actual_length;
+ int st = dataurb->iso_frame_desc[i].status;
+ cdata = dataurb->transfer_buffer +
+ dataurb->iso_frame_desc[i].offset;
+
+ /* Detect and ignore errored packets */
+ if (st < 0) {
+ DEBUG(1, "Data error: packet=%d. len=%d. status=%d.",
+ i, n, st);
+ uvd->stats.iso_err_count++;
+ continue;
+ }
+
+ /* Detect and ignore empty packets */
+ if (n <= 0) {
+ uvd->stats.iso_skip_count++;
+ continue;
+ }
+
+ /* See what the status data said about the packet */
+ sts = *(status+stsurb->iso_frame_desc[i].offset);
+
+ /* sts: 0x80-0xff: frame start with frame number (ie 0-7f)
+ * otherwise:
+ * bit 0 0: keep packet
+ * 1: drop packet (padding data)
+ *
+ * bit 4 0 button not clicked
+ * 1 button clicked
+ * button is used to `take a picture' (in software)
+ */
+
+ if(sts < 0x80) {
+ button = !!(sts & 0x40);
+ sts &= ~0x40;
+ }
+
+ /* work out the button status, but don't do
+ anything with it for now */
+
+ if(button != cam->buttonsts) {
+ DEBUG(2, "button: %sclicked", button ? "" : "un");
+ cam->buttonsts = button;
+ konicawc_report_buttonstat(cam);
+ }
+
+ if(sts == 0x01) { /* drop frame */
+ discard++;
+ continue;
+ }
+
+ if((sts > 0x01) && (sts < 0x80)) {
+ info("unknown status %2.2x", sts);
+ bad++;
+ continue;
+ }
+ if(!sts && cam->lastframe == -2) {
+ DEBUG(2, "dropping frame looking for image start");
+ continue;
+ }
+
+ keep++;
+ if(sts & 0x80) { /* frame start */
+ unsigned char marker[] = { 0, 0xff, 0, 0x00 };
+
+ if(cam->lastframe == -2) {
+ DEBUG(2, "found initial image");
+ cam->lastframe = -1;
+ }
+
+ marker[3] = sts & 0x7F;
+ RingQueue_Enqueue(&uvd->dp, marker, 4);
+ totlen += 4;
+ }
+
+ totlen += n; /* Little local accounting */
+ RingQueue_Enqueue(&uvd->dp, cdata, n);
+ }
+ DEBUG(8, "finished: keep = %d discard = %d bad = %d added %d bytes",
+ keep, discard, bad, totlen);
+ return totlen;
+}
+
+
+static void resubmit_urb(struct uvd *uvd, struct urb *urb)
+{
+ int i, ret;
+ for (i = 0; i < FRAMES_PER_DESC; i++) {
+ urb->iso_frame_desc[i].status = 0;
+ }
+ urb->dev = uvd->dev;
+ urb->status = 0;
+ ret = usb_submit_urb(urb, GFP_ATOMIC);
+ DEBUG(3, "submitting urb of length %d", urb->transfer_buffer_length);
+ if(ret)
+ err("usb_submit_urb error (%d)", ret);
+
+}
+
+
+static void konicawc_isoc_irq(struct urb *urb, struct pt_regs *regs)
+{
+ struct uvd *uvd = urb->context;
+ struct konicawc *cam = (struct konicawc *)uvd->user_data;
+
+ /* We don't want to do anything if we are about to be removed! */
+ if (!CAMERA_IS_OPERATIONAL(uvd))
+ return;
+
+ if (!uvd->streaming) {
+ DEBUG(1, "Not streaming, but interrupt!");
+ return;
+ }
+
+ DEBUG(3, "got frame %d len = %d buflen =%d", urb->start_frame, urb->actual_length, urb->transfer_buffer_length);
+
+ uvd->stats.urb_count++;
+
+ if (urb->transfer_buffer_length > 32) {
+ cam->last_data_urb = urb;
+ return;
+ }
+ /* Copy the data received into ring queue */
+ if(cam->last_data_urb) {
+ int len = 0;
+ if(urb->start_frame != cam->last_data_urb->start_frame)
+ err("Lost sync on frames");
+ else if (!urb->status && !cam->last_data_urb->status)
+ len = konicawc_compress_iso(uvd, cam->last_data_urb, urb);
+
+ resubmit_urb(uvd, cam->last_data_urb);
+ resubmit_urb(uvd, urb);
+ cam->last_data_urb = NULL;
+ uvd->stats.urb_length = len;
+ uvd->stats.data_count += len;
+ if(len)
+ RingQueue_WakeUpInterruptible(&uvd->dp);
+ return;
+ }
+ return;
+}
+
+
+static int konicawc_start_data(struct uvd *uvd)
+{
+ struct usb_device *dev = uvd->dev;
+ int i, errFlag;
+ struct konicawc *cam = (struct konicawc *)uvd->user_data;
+ int pktsz;
+ struct usb_interface *intf;
+ struct usb_host_interface *interface = NULL;
+
+ intf = usb_ifnum_to_if(dev, uvd->iface);
+ if (intf)
+ interface = usb_altnum_to_altsetting(intf,
+ spd_to_iface[cam->speed]);
+ if (!interface)
+ return -ENXIO;
+ pktsz = le16_to_cpu(interface->endpoint[1].desc.wMaxPacketSize);
+ DEBUG(1, "pktsz = %d", pktsz);
+ if (!CAMERA_IS_OPERATIONAL(uvd)) {
+ err("Camera is not operational");
+ return -EFAULT;
+ }
+ uvd->curframe = -1;
+ konicawc_camera_on(uvd);
+ /* Alternate interface 1 is is the biggest frame size */
+ i = usb_set_interface(dev, uvd->iface, uvd->ifaceAltActive);
+ if (i < 0) {
+ err("usb_set_interface error");
+ uvd->last_error = i;
+ return -EBUSY;
+ }
+
+ /* We double buffer the Iso lists */
+ for (i=0; i < USBVIDEO_NUMSBUF; i++) {
+ int j, k;
+ struct urb *urb = uvd->sbuf[i].urb;
+ urb->dev = dev;
+ urb->context = uvd;
+ urb->pipe = usb_rcvisocpipe(dev, uvd->video_endp);
+ urb->interval = 1;
+ urb->transfer_flags = URB_ISO_ASAP;
+ urb->transfer_buffer = uvd->sbuf[i].data;
+ urb->complete = konicawc_isoc_irq;
+ urb->number_of_packets = FRAMES_PER_DESC;
+ urb->transfer_buffer_length = pktsz * FRAMES_PER_DESC;
+ for (j=k=0; j < FRAMES_PER_DESC; j++, k += pktsz) {
+ urb->iso_frame_desc[j].offset = k;
+ urb->iso_frame_desc[j].length = pktsz;
+ }
+
+ urb = cam->sts_urb[i];
+ urb->dev = dev;
+ urb->context = uvd;
+ urb->pipe = usb_rcvisocpipe(dev, uvd->video_endp-1);
+ urb->interval = 1;
+ urb->transfer_flags = URB_ISO_ASAP;
+ urb->transfer_buffer = cam->sts_buf[i];
+ urb->complete = konicawc_isoc_irq;
+ urb->number_of_packets = FRAMES_PER_DESC;
+ urb->transfer_buffer_length = FRAMES_PER_DESC;
+ for (j=0; j < FRAMES_PER_DESC; j++) {
+ urb->iso_frame_desc[j].offset = j;
+ urb->iso_frame_desc[j].length = 1;
+ }
+ }
+
+ cam->last_data_urb = NULL;
+
+ /* Submit all URBs */
+ for (i=0; i < USBVIDEO_NUMSBUF; i++) {
+ errFlag = usb_submit_urb(cam->sts_urb[i], GFP_KERNEL);
+ if (errFlag)
+ err("usb_submit_isoc(%d) ret %d", i, errFlag);
+
+ errFlag = usb_submit_urb(uvd->sbuf[i].urb, GFP_KERNEL);
+ if (errFlag)
+ err ("usb_submit_isoc(%d) ret %d", i, errFlag);
+ }
+
+ uvd->streaming = 1;
+ DEBUG(1, "streaming=1 video_endp=$%02x", uvd->video_endp);
+ return 0;
+}
+
+
+static void konicawc_stop_data(struct uvd *uvd)
+{
+ int i, j;
+ struct konicawc *cam;
+
+ if ((uvd == NULL) || (!uvd->streaming) || (uvd->dev == NULL))
+ return;
+
+ konicawc_camera_off(uvd);
+ uvd->streaming = 0;
+ cam = (struct konicawc *)uvd->user_data;
+ cam->last_data_urb = NULL;
+
+ /* Unschedule all of the iso td's */
+ for (i=0; i < USBVIDEO_NUMSBUF; i++) {
+ usb_kill_urb(uvd->sbuf[i].urb);
+ usb_kill_urb(cam->sts_urb[i]);
+ }
+
+ if (!uvd->remove_pending) {
+ /* Set packet size to 0 */
+ j = usb_set_interface(uvd->dev, uvd->iface, uvd->ifaceAltInactive);
+ 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;
+ }
+
+ konicawc_register_input(cam, dev);
+ }
+
+ 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;
+
+ konicawc_unregister_input(cam);
+
+ 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);
git://git.onelab.eu / linux-2.6.git / blobdiff