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path: root/drivers/media/video/usbvideo/ultracam.c
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Diffstat (limited to 'drivers/media/video/usbvideo/ultracam.c')
-rw-r--r--drivers/media/video/usbvideo/ultracam.c679
1 files changed, 679 insertions, 0 deletions
diff --git a/drivers/media/video/usbvideo/ultracam.c b/drivers/media/video/usbvideo/ultracam.c
new file mode 100644
index 000000000000..75ff755224df
--- /dev/null
+++ b/drivers/media/video/usbvideo/ultracam.c
@@ -0,0 +1,679 @@
+/*
+ * USB NB Camera driver
+ *
+ * HISTORY:
+ * 25-Dec-2002 Dmitri Removed lighting, sharpness parameters, methods.
+ */
+
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/module.h>
+#include <linux/init.h>
+
+#include "usbvideo.h"
+
+#define ULTRACAM_VENDOR_ID 0x0461
+#define ULTRACAM_PRODUCT_ID 0x0813
+
+#define MAX_CAMERAS 4 /* How many devices we allow to connect */
+
+/*
+ * This structure lives in uvd_t->user field.
+ */
+typedef struct {
+ int initialized; /* Had we already sent init sequence? */
+ int camera_model; /* What type of IBM camera we got? */
+ int has_hdr;
+} ultracam_t;
+#define ULTRACAM_T(uvd) ((ultracam_t *)((uvd)->user_data))
+
+static struct usbvideo *cams = NULL;
+
+static int debug = 0;
+
+static int flags = 0; /* FLAGS_DISPLAY_HINTS | FLAGS_OVERLAY_STATS; */
+
+static const int min_canvasWidth = 8;
+static const int min_canvasHeight = 4;
+
+#define FRAMERATE_MIN 0
+#define FRAMERATE_MAX 6
+static int framerate = -1;
+
+/*
+ * Here we define several initialization variables. They may
+ * be used to automatically set color, hue, brightness and
+ * contrast to desired values. This is particularly useful in
+ * case of webcams (which have no controls and no on-screen
+ * output) and also when a client V4L software is used that
+ * does not have some of those controls. In any case it's
+ * good to have startup values as options.
+ *
+ * These values are all in [0..255] range. This simplifies
+ * operation. Note that actual values of V4L variables may
+ * be scaled up (as much as << 8). User can see that only
+ * on overlay output, however, or through a V4L client.
+ */
+static int init_brightness = 128;
+static int init_contrast = 192;
+static int init_color = 128;
+static int init_hue = 128;
+static int hue_correction = 128;
+
+module_param(debug, int, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(debug, "Debug level: 0-9 (default=0)");
+module_param(flags, int, 0);
+MODULE_PARM_DESC(flags,
+ "Bitfield: 0=VIDIOCSYNC, "
+ "1=B/W, "
+ "2=show hints, "
+ "3=show stats, "
+ "4=test pattern, "
+ "5=separate frames, "
+ "6=clean frames");
+module_param(framerate, int, 0);
+MODULE_PARM_DESC(framerate, "Framerate setting: 0=slowest, 6=fastest (default=2)");
+
+module_param(init_brightness, int, 0);
+MODULE_PARM_DESC(init_brightness, "Brightness preconfiguration: 0-255 (default=128)");
+module_param(init_contrast, int, 0);
+MODULE_PARM_DESC(init_contrast, "Contrast preconfiguration: 0-255 (default=192)");
+module_param(init_color, int, 0);
+MODULE_PARM_DESC(init_color, "Color preconfiguration: 0-255 (default=128)");
+module_param(init_hue, int, 0);
+MODULE_PARM_DESC(init_hue, "Hue preconfiguration: 0-255 (default=128)");
+module_param(hue_correction, int, 0);
+MODULE_PARM_DESC(hue_correction, "YUV colorspace regulation: 0-255 (default=128)");
+
+/*
+ * ultracam_ProcessIsocData()
+ *
+ * Generic routine to parse the ring queue data. It employs either
+ * ultracam_find_header() or ultracam_parse_lines() to do most
+ * of work.
+ *
+ * 02-Nov-2000 First (mostly dummy) version.
+ * 06-Nov-2000 Rewrote to dump all data into frame.
+ */
+static void ultracam_ProcessIsocData(struct uvd *uvd, struct usbvideo_frame *frame)
+{
+ int n;
+
+ assert(uvd != NULL);
+ assert(frame != NULL);
+
+ /* Try to move data from queue into frame buffer */
+ n = RingQueue_GetLength(&uvd->dp);
+ if (n > 0) {
+ int m;
+ /* See how much spare we have left */
+ m = uvd->max_frame_size - frame->seqRead_Length;
+ if (n > m)
+ n = m;
+ /* Now move that much data into frame buffer */
+ RingQueue_Dequeue(
+ &uvd->dp,
+ frame->data + frame->seqRead_Length,
+ m);
+ frame->seqRead_Length += m;
+ }
+ /* See if we filled the frame */
+ if (frame->seqRead_Length >= uvd->max_frame_size) {
+ frame->frameState = FrameState_Done;
+ uvd->curframe = -1;
+ uvd->stats.frame_num++;
+ }
+}
+
+/*
+ * ultracam_veio()
+ *
+ * History:
+ * 1/27/00 Added check for dev == NULL; this happens if camera is unplugged.
+ */
+static int ultracam_veio(
+ struct uvd *uvd,
+ unsigned char req,
+ unsigned short value,
+ unsigned short index,
+ int is_out)
+{
+ static const char proc[] = "ultracam_veio";
+ unsigned char cp[8] /* = { 0xde, 0xad, 0xbe, 0xef, 0xde, 0xad, 0xbe, 0xef } */;
+ int i;
+
+ if (!CAMERA_IS_OPERATIONAL(uvd))
+ return 0;
+
+ if (!is_out) {
+ i = usb_control_msg(
+ uvd->dev,
+ usb_rcvctrlpipe(uvd->dev, 0),
+ req,
+ USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ value,
+ index,
+ cp,
+ sizeof(cp),
+ 1000);
+#if 1
+ info("USB => %02x%02x%02x%02x%02x%02x%02x%02x "
+ "(req=$%02x val=$%04x ind=$%04x)",
+ cp[0],cp[1],cp[2],cp[3],cp[4],cp[5],cp[6],cp[7],
+ req, value, index);
+#endif
+ } else {
+ i = usb_control_msg(
+ uvd->dev,
+ usb_sndctrlpipe(uvd->dev, 0),
+ req,
+ USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ value,
+ index,
+ NULL,
+ 0,
+ 1000);
+ }
+ if (i < 0) {
+ err("%s: ERROR=%d. Camera stopped; Reconnect or reload driver.",
+ proc, i);
+ uvd->last_error = i;
+ }
+ return i;
+}
+
+/*
+ * ultracam_calculate_fps()
+ */
+static int ultracam_calculate_fps(struct uvd *uvd)
+{
+ return 3 + framerate*4 + framerate/2;
+}
+
+/*
+ * ultracam_adjust_contrast()
+ */
+static void ultracam_adjust_contrast(struct uvd *uvd)
+{
+}
+
+/*
+ * ultracam_set_brightness()
+ *
+ * This procedure changes brightness of the picture.
+ */
+static void ultracam_set_brightness(struct uvd *uvd)
+{
+}
+
+static void ultracam_set_hue(struct uvd *uvd)
+{
+}
+
+/*
+ * ultracam_adjust_picture()
+ *
+ * This procedure gets called from V4L interface to update picture settings.
+ * Here we change brightness and contrast.
+ */
+static void ultracam_adjust_picture(struct uvd *uvd)
+{
+ ultracam_adjust_contrast(uvd);
+ ultracam_set_brightness(uvd);
+ ultracam_set_hue(uvd);
+}
+
+/*
+ * ultracam_video_stop()
+ *
+ * This code tells camera to stop streaming. The interface remains
+ * configured and bandwidth - claimed.
+ */
+static void ultracam_video_stop(struct uvd *uvd)
+{
+}
+
+/*
+ * ultracam_reinit_iso()
+ *
+ * This procedure sends couple of commands to the camera and then
+ * resets the video pipe. This sequence was observed to reinit the
+ * camera or, at least, to initiate ISO data stream.
+ */
+static void ultracam_reinit_iso(struct uvd *uvd, int do_stop)
+{
+}
+
+static void ultracam_video_start(struct uvd *uvd)
+{
+ ultracam_reinit_iso(uvd, 0);
+}
+
+static int ultracam_resetPipe(struct uvd *uvd)
+{
+ usb_clear_halt(uvd->dev, uvd->video_endp);
+ return 0;
+}
+
+static int ultracam_alternateSetting(struct uvd *uvd, int setting)
+{
+ static const char proc[] = "ultracam_alternateSetting";
+ int i;
+ i = usb_set_interface(uvd->dev, uvd->iface, setting);
+ if (i < 0) {
+ err("%s: usb_set_interface error", proc);
+ uvd->last_error = i;
+ return -EBUSY;
+ }
+ return 0;
+}
+
+/*
+ * Return negative code on failure, 0 on success.
+ */
+static int ultracam_setup_on_open(struct uvd *uvd)
+{
+ int setup_ok = 0; /* Success by default */
+ /* Send init sequence only once, it's large! */
+ if (!ULTRACAM_T(uvd)->initialized) {
+ ultracam_alternateSetting(uvd, 0x04);
+ ultracam_alternateSetting(uvd, 0x00);
+ ultracam_veio(uvd, 0x02, 0x0004, 0x000b, 1);
+ ultracam_veio(uvd, 0x02, 0x0001, 0x0005, 1);
+ ultracam_veio(uvd, 0x02, 0x8000, 0x0000, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x0000, 1);
+ ultracam_veio(uvd, 0x00, 0x00b0, 0x0001, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x0002, 1);
+ ultracam_veio(uvd, 0x00, 0x000c, 0x0003, 1);
+ ultracam_veio(uvd, 0x00, 0x000b, 0x0004, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x0005, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x0006, 1);
+ ultracam_veio(uvd, 0x00, 0x0079, 0x0007, 1);
+ ultracam_veio(uvd, 0x00, 0x003b, 0x0008, 1);
+ ultracam_veio(uvd, 0x00, 0x0002, 0x000f, 1);
+ ultracam_veio(uvd, 0x00, 0x0001, 0x0010, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x0011, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00bf, 1);
+ ultracam_veio(uvd, 0x00, 0x0001, 0x00c0, 1);
+ ultracam_veio(uvd, 0x00, 0x0010, 0x00cb, 1);
+ ultracam_veio(uvd, 0x01, 0x00a4, 0x0001, 1);
+ ultracam_veio(uvd, 0x01, 0x0010, 0x0002, 1);
+ ultracam_veio(uvd, 0x01, 0x0066, 0x0007, 1);
+ ultracam_veio(uvd, 0x01, 0x000b, 0x0008, 1);
+ ultracam_veio(uvd, 0x01, 0x0034, 0x0009, 1);
+ ultracam_veio(uvd, 0x01, 0x0000, 0x000a, 1);
+ ultracam_veio(uvd, 0x01, 0x002e, 0x000b, 1);
+ ultracam_veio(uvd, 0x01, 0x00d6, 0x000c, 1);
+ ultracam_veio(uvd, 0x01, 0x00fc, 0x000d, 1);
+ ultracam_veio(uvd, 0x01, 0x00f1, 0x000e, 1);
+ ultracam_veio(uvd, 0x01, 0x00da, 0x000f, 1);
+ ultracam_veio(uvd, 0x01, 0x0036, 0x0010, 1);
+ ultracam_veio(uvd, 0x01, 0x000b, 0x0011, 1);
+ ultracam_veio(uvd, 0x01, 0x0001, 0x0012, 1);
+ ultracam_veio(uvd, 0x01, 0x0000, 0x0013, 1);
+ ultracam_veio(uvd, 0x01, 0x0000, 0x0014, 1);
+ ultracam_veio(uvd, 0x01, 0x0087, 0x0051, 1);
+ ultracam_veio(uvd, 0x01, 0x0040, 0x0052, 1);
+ ultracam_veio(uvd, 0x01, 0x0058, 0x0053, 1);
+ ultracam_veio(uvd, 0x01, 0x0040, 0x0054, 1);
+ ultracam_veio(uvd, 0x01, 0x0000, 0x0040, 1);
+ ultracam_veio(uvd, 0x01, 0x0010, 0x0041, 1);
+ ultracam_veio(uvd, 0x01, 0x0020, 0x0042, 1);
+ ultracam_veio(uvd, 0x01, 0x0030, 0x0043, 1);
+ ultracam_veio(uvd, 0x01, 0x0040, 0x0044, 1);
+ ultracam_veio(uvd, 0x01, 0x0050, 0x0045, 1);
+ ultracam_veio(uvd, 0x01, 0x0060, 0x0046, 1);
+ ultracam_veio(uvd, 0x01, 0x0070, 0x0047, 1);
+ ultracam_veio(uvd, 0x01, 0x0080, 0x0048, 1);
+ ultracam_veio(uvd, 0x01, 0x0090, 0x0049, 1);
+ ultracam_veio(uvd, 0x01, 0x00a0, 0x004a, 1);
+ ultracam_veio(uvd, 0x01, 0x00b0, 0x004b, 1);
+ ultracam_veio(uvd, 0x01, 0x00c0, 0x004c, 1);
+ ultracam_veio(uvd, 0x01, 0x00d0, 0x004d, 1);
+ ultracam_veio(uvd, 0x01, 0x00e0, 0x004e, 1);
+ ultracam_veio(uvd, 0x01, 0x00f0, 0x004f, 1);
+ ultracam_veio(uvd, 0x01, 0x00ff, 0x0050, 1);
+ ultracam_veio(uvd, 0x01, 0x0000, 0x0056, 1);
+ ultracam_veio(uvd, 0x00, 0x0080, 0x00c1, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c2, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00ca, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0080, 0x00c1, 1);
+ ultracam_veio(uvd, 0x00, 0x0004, 0x00c2, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00ca, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0002, 0x00c1, 1);
+ ultracam_veio(uvd, 0x00, 0x0020, 0x00c2, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00ca, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c3, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c4, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c5, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c6, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c7, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c8, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c3, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c4, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c5, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c6, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c7, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c8, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0040, 0x00c1, 1);
+ ultracam_veio(uvd, 0x00, 0x0017, 0x00c2, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00ca, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c3, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c4, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c5, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c6, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c7, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c8, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c3, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c4, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c5, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c6, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c7, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c8, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+ ultracam_veio(uvd, 0x00, 0x00c0, 0x00c1, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00c2, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00ca, 1);
+ ultracam_veio(uvd, 0x02, 0xc040, 0x0001, 1);
+ ultracam_veio(uvd, 0x01, 0x0000, 0x0008, 0);
+ ultracam_veio(uvd, 0x01, 0x0000, 0x0009, 0);
+ ultracam_veio(uvd, 0x01, 0x0000, 0x000a, 0);
+ ultracam_veio(uvd, 0x01, 0x0000, 0x000b, 0);
+ ultracam_veio(uvd, 0x01, 0x0000, 0x000c, 0);
+ ultracam_veio(uvd, 0x01, 0x0000, 0x000d, 0);
+ ultracam_veio(uvd, 0x01, 0x0000, 0x000e, 0);
+ ultracam_veio(uvd, 0x01, 0x0000, 0x000f, 0);
+ ultracam_veio(uvd, 0x01, 0x0000, 0x0010, 0);
+ ultracam_veio(uvd, 0x01, 0x000b, 0x0008, 1);
+ ultracam_veio(uvd, 0x01, 0x0034, 0x0009, 1);
+ ultracam_veio(uvd, 0x01, 0x0000, 0x000a, 1);
+ ultracam_veio(uvd, 0x01, 0x002e, 0x000b, 1);
+ ultracam_veio(uvd, 0x01, 0x00d6, 0x000c, 1);
+ ultracam_veio(uvd, 0x01, 0x00fc, 0x000d, 1);
+ ultracam_veio(uvd, 0x01, 0x00f1, 0x000e, 1);
+ ultracam_veio(uvd, 0x01, 0x00da, 0x000f, 1);
+ ultracam_veio(uvd, 0x01, 0x0036, 0x0010, 1);
+ ultracam_veio(uvd, 0x01, 0x0000, 0x0001, 0);
+ ultracam_veio(uvd, 0x01, 0x0064, 0x0001, 1);
+ ultracam_veio(uvd, 0x01, 0x0059, 0x0051, 1);
+ ultracam_veio(uvd, 0x01, 0x003f, 0x0052, 1);
+ ultracam_veio(uvd, 0x01, 0x0094, 0x0053, 1);
+ ultracam_veio(uvd, 0x01, 0x00ff, 0x0011, 1);
+ ultracam_veio(uvd, 0x01, 0x0003, 0x0012, 1);
+ ultracam_veio(uvd, 0x01, 0x00f7, 0x0013, 1);
+ ultracam_veio(uvd, 0x00, 0x0009, 0x0011, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x0001, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x0000, 1);
+ ultracam_veio(uvd, 0x00, 0x0020, 0x00c1, 1);
+ ultracam_veio(uvd, 0x00, 0x0010, 0x00c2, 1);
+ ultracam_veio(uvd, 0x00, 0x0000, 0x00ca, 1);
+ ultracam_alternateSetting(uvd, 0x04);
+ ultracam_veio(uvd, 0x02, 0x0000, 0x0001, 1);
+ ultracam_veio(uvd, 0x02, 0x0000, 0x0001, 1);
+ ultracam_veio(uvd, 0x02, 0x0000, 0x0006, 1);
+ ultracam_veio(uvd, 0x02, 0x9000, 0x0007, 1);
+ ultracam_veio(uvd, 0x02, 0x0042, 0x0001, 1);
+ ultracam_veio(uvd, 0x02, 0x0000, 0x000b, 0);
+ ultracam_resetPipe(uvd);
+ ULTRACAM_T(uvd)->initialized = (setup_ok != 0);
+ }
+ return setup_ok;
+}
+
+static void ultracam_configure_video(struct uvd *uvd)
+{
+ if (uvd == NULL)
+ return;
+
+ RESTRICT_TO_RANGE(init_brightness, 0, 255);
+ RESTRICT_TO_RANGE(init_contrast, 0, 255);
+ RESTRICT_TO_RANGE(init_color, 0, 255);
+ RESTRICT_TO_RANGE(init_hue, 0, 255);
+ RESTRICT_TO_RANGE(hue_correction, 0, 255);
+
+ memset(&uvd->vpic, 0, sizeof(uvd->vpic));
+ memset(&uvd->vpic_old, 0x55, sizeof(uvd->vpic_old));
+
+ uvd->vpic.colour = init_color << 8;
+ uvd->vpic.hue = init_hue << 8;
+ uvd->vpic.brightness = init_brightness << 8;
+ uvd->vpic.contrast = init_contrast << 8;
+ uvd->vpic.whiteness = 105 << 8; /* This one isn't used */
+ uvd->vpic.depth = 24;
+ uvd->vpic.palette = VIDEO_PALETTE_RGB24;
+
+ memset(&uvd->vcap, 0, sizeof(uvd->vcap));
+ strcpy(uvd->vcap.name, "IBM Ultra Camera");
+ uvd->vcap.type = VID_TYPE_CAPTURE;
+ uvd->vcap.channels = 1;
+ uvd->vcap.audios = 0;
+ uvd->vcap.maxwidth = VIDEOSIZE_X(uvd->canvas);
+ uvd->vcap.maxheight = VIDEOSIZE_Y(uvd->canvas);
+ uvd->vcap.minwidth = min_canvasWidth;
+ uvd->vcap.minheight = min_canvasHeight;
+
+ 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");
+}
+
+/*
+ * ultracam_probe()
+ *
+ * This procedure queries device descriptor and accepts the interface
+ * if it looks like our camera.
+ *
+ * History:
+ * 12-Nov-2000 Reworked to comply with new probe() signature.
+ * 23-Jan-2001 Added compatibility with 2.2.x kernels.
+ */
+static int ultracam_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;
+
+ if (debug >= 1)
+ info("ultracam_probe(%p)", intf);
+
+ /* We don't handle multi-config cameras */
+ if (dev->descriptor.bNumConfigurations != 1)
+ return -ENODEV;
+
+ info("IBM Ultra camera found (rev. 0x%04x)",
+ le16_to_cpu(dev->descriptor.bcdDevice));
+
+ /* Validate found interface: must have one ISO endpoint */
+ nas = intf->num_altsetting;
+ if (debug > 0)
+ info("Number of alternate settings=%d.", nas);
+ if (nas < 8) {
+ err("Too few alternate settings for this camera!");
+ 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 != 1) {
+ err("Interface %d. has %u. endpoints!",
+ interface->desc.bInterfaceNumber,
+ (unsigned)(interface->desc.bNumEndpoints));
+ return -ENODEV;
+ }
+ endpoint = &interface->endpoint[0].desc;
+ 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 (actInterface < 0) {
+ actInterface = i;
+ maxPS = le16_to_cpu(endpoint->wMaxPacketSize);
+ if (debug > 0)
+ info("Active setting=%d. maxPS=%d.", i, maxPS);
+ } else {
+ /* Got another active alt. setting */
+ if (maxPS < le16_to_cpu(endpoint->wMaxPacketSize)) {
+ /* This one is better! */
+ actInterface = i;
+ maxPS = le16_to_cpu(endpoint->wMaxPacketSize);
+ if (debug > 0) {
+ info("Even better ctive setting=%d. maxPS=%d.",
+ i, maxPS);
+ }
+ }
+ }
+ }
+ }
+ if ((maxPS <= 0) || (actInterface < 0) || (inactInterface < 0)) {
+ err("Failed to recognize the camera!");
+ return -ENODEV;
+ }
+
+ uvd = usbvideo_AllocateDevice(cams);
+ if (uvd != NULL) {
+ /* Here uvd is a fully allocated uvd object */
+ uvd->flags = flags;
+ 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_RGB24;
+ uvd->defaultPalette = VIDEO_PALETTE_RGB24;
+ uvd->canvas = VIDEOSIZE(640, 480); /* FIXME */
+ uvd->videosize = uvd->canvas; /* ultracam_size_to_videosize(size);*/
+
+ /* Initialize ibmcam-specific data */
+ assert(ULTRACAM_T(uvd) != NULL);
+ ULTRACAM_T(uvd)->camera_model = 0; /* Not used yet */
+ ULTRACAM_T(uvd)->initialized = 0;
+
+ ultracam_configure_video(uvd);
+
+ i = usbvideo_RegisterVideoDevice(uvd);
+ if (i != 0) {
+ err("usbvideo_RegisterVideoDevice() failed.");
+ uvd = NULL;
+ }
+ }
+
+ if (uvd) {
+ usb_set_intfdata (intf, uvd);
+ return 0;
+ }
+ return -EIO;
+}
+
+
+static struct usb_device_id id_table[] = {
+ { USB_DEVICE(ULTRACAM_VENDOR_ID, ULTRACAM_PRODUCT_ID) },
+ { } /* Terminating entry */
+};
+
+/*
+ * ultracam_init()
+ *
+ * This code is run to initialize the driver.
+ */
+static int __init ultracam_init(void)
+{
+ struct usbvideo_cb cbTbl;
+ memset(&cbTbl, 0, sizeof(cbTbl));
+ cbTbl.probe = ultracam_probe;
+ cbTbl.setupOnOpen = ultracam_setup_on_open;
+ cbTbl.videoStart = ultracam_video_start;
+ cbTbl.videoStop = ultracam_video_stop;
+ cbTbl.processData = ultracam_ProcessIsocData;
+ cbTbl.postProcess = usbvideo_DeinterlaceFrame;
+ cbTbl.adjustPicture = ultracam_adjust_picture;
+ cbTbl.getFPS = ultracam_calculate_fps;
+ return usbvideo_register(
+ &cams,
+ MAX_CAMERAS,
+ sizeof(ultracam_t),
+ "ultracam",
+ &cbTbl,
+ THIS_MODULE,
+ id_table);
+}
+
+static void __exit ultracam_cleanup(void)
+{
+ usbvideo_Deregister(&cams);
+}
+
+MODULE_DEVICE_TABLE(usb, id_table);
+MODULE_LICENSE("GPL");
+
+module_init(ultracam_init);
+module_exit(ultracam_cleanup);
generated by cgit v1.2.3 (git 2.0.4) at 2024-12-27 08:13:50 +0000