Add a configurable stream_flag field

[gspca_kinect.git] / kinect.c

diff --git a/kinect.c b/kinect.c
index 883db90..174caa8 100644 (file)
--- a/kinect.c
+++ b/kinect.c
@@ -1,9 +1,9 @@
 /*
  * kinect sensor device camera, gspca driver
  *
- * Copyright (C) 2010  Antonio Ospite <ospite@studenti.unina.it>
+ * Copyright (C) 2011  Antonio Ospite <ospite@studenti.unina.it>
  *
- * Based on the OpenKinect project and libfreenect by Ector Martin
+ * Based on the OpenKinect project and libfreenect
  * http://openkinect.org/wiki/Init_Analysis
  * 
  * This program is free software; you can redistribute it and/or modify
@@ -31,6 +31,11 @@ MODULE_AUTHOR("Antonio Ospite <ospite@studenti.unina.it>");
 MODULE_DESCRIPTION("GSPCA/Kinect Sensor Device USB Camera Driver");
 MODULE_LICENSE("GPL");
 
+#ifdef DEBUG
+int gspca_debug = D_ERR | D_PROBE | D_CONF | D_STREAM | D_FRAM | D_PACK |
+       D_USBI | D_USBO | D_V4L2;
+#endif
+
 struct pkt_hdr {
        uint8_t magic[2];
        uint8_t pad;
@@ -49,13 +54,11 @@ typedef struct {
        uint16_t tag;
 } cam_hdr;
 
-int gspca_debug = D_ERR | D_PROBE | D_CONF | D_STREAM | D_FRAM | D_PACK |
-       D_USBI | D_USBO | D_V4L2;
-
 /* specific webcam descriptor */
 struct sd {
-       struct gspca_dev gspca_dev;     /* !! must be the first item */
-       uint16_t cam_tag;
+       struct gspca_dev gspca_dev; /* !! must be the first item */
+       uint16_t cam_tag;           /* a sequence number for packets */
+       uint8_t stream_flag;        /* to identify different steram types */
 };
 
 /* V4L2 controls supported by the driver */
@@ -145,7 +148,7 @@ static int send_cmd(struct gspca_dev *gspca_dev, uint16_t cmd, void *cmdbuf,
        memcpy(obuf+sizeof(*chdr), cmdbuf, cmd_len);
 
        res = kinect_write(udev, obuf, cmd_len + sizeof(*chdr));
-       info("Control cmd=%04x tag=%04x len=%04x: %d", cmd, sd->cam_tag, cmd_len, res);
+       PDEBUG(D_USBO, "Control cmd=%04x tag=%04x len=%04x: %d", cmd, sd->cam_tag, cmd_len, res);
        if (res < 0) {
                err("send_cmd: Output control transfer failed (%d)", res);
                return res;
@@ -154,7 +157,7 @@ static int send_cmd(struct gspca_dev *gspca_dev, uint16_t cmd, void *cmdbuf,
        do {
                actual_len = kinect_read(udev, ibuf, 0x200);
        } while (actual_len == 0);
-       info("Control reply: %d", res);
+       PDEBUG(D_USBO, "Control reply: %d", res);
        if (actual_len < sizeof(*rhdr)) {
                err("send_cmd: Input control transfer failed (%d)", res);
                return res;
@@ -221,6 +224,10 @@ static int sd_config(struct gspca_dev *gspca_dev,
 
        sd->cam_tag = 0;
 
+       /* Only color camera is supported for now,
+        * which has stream flag = 0x80 */
+       sd->stream_flag = 0x80;
+
        cam = &gspca_dev->cam;
 
        cam->cam_mode = video_camera_mode;
@@ -319,22 +326,21 @@ static void sd_stopN(struct gspca_dev *gspca_dev)
 
 static void sd_pkt_scan(struct gspca_dev *gspca_dev, u8 *__data, int len)
 {
-       //struct sd *sd = (struct sd *) gspca_dev;
+       struct sd *sd = (struct sd *) gspca_dev;
        
        struct pkt_hdr *hdr = (void*)__data;
        uint8_t *data = __data + sizeof(*hdr);
        int datalen = len - sizeof(*hdr);
 
-       /* strm->flag == 0x80 for the color camera stream */
-       uint8_t sof = 0x80 | 1;
-       uint8_t mof = 0x80 | 2;
-       uint8_t eof = 0x80 | 5;
+       uint8_t sof = sd->stream_flag | 1;
+       uint8_t mof = sd->stream_flag | 2;
+       uint8_t eof = sd->stream_flag | 5;
 
        if (len < 12)
                return;
 
        if (hdr->magic[0] != 'R' || hdr->magic[1] != 'B') {
-               warn("[Stream %02x] Invalid magic %02x%02x", 0x80, //strm->flag
+               warn("[Stream %02x] Invalid magic %02x%02x", sd->stream_flag,
                                hdr->magic[0], hdr->magic[1]);
                return;
        }