Em Quarta-feira 22 Julho 2009, Antoine Jacquet escreveu: > Hi, > > Lamarque Vieira Souza wrote: > > I have made some changes to the patch: > > Since I already included your previous patch and sent a pull request to > Mauro, could you send a patch against my current tree: > http://linuxtv.org/hg/~ajacquet/zr364xx/ > > Thanks, > > Antoine Here it is Signed-off-by: Lamarque V. Souza <lamarque@xxxxxxxxx> --- diff -r ebb57057cf4d linux/drivers/media/video/zr364xx.c --- a/linux/drivers/media/video/zr364xx.c Mon Jul 20 20:46:42 2009 -0300 +++ b/linux/drivers/media/video/zr364xx.c Wed Jul 22 16:52:30 2009 -0300 @@ -67,6 +67,13 @@ } \ } while (0) +/*#define FULL_DEBUG 1*/ +#ifdef FULL_DEBUG +#define _DBG DBG +#else +#define _DBG(fmt, args...) +#endif + /* Init methods, need to find nicer names for these * the exact names of the chipsets would be the best if someone finds it */ #define METHOD0 0 @@ -376,7 +383,7 @@ static void free_buffer(struct videobuf_queue *vq, struct zr364xx_buffer *buf) { - DBG("%s\n", __func__); + _DBG("%s\n", __func__); if (in_interrupt()) BUG(); @@ -429,7 +436,7 @@ vb); struct zr364xx_camera *cam = vq->priv_data; - DBG("%s\n", __func__); + _DBG("%s\n", __func__); buf->vb.state = VIDEOBUF_QUEUED; list_add_tail(&buf->vb.queue, &cam->vidq.active); @@ -441,7 +448,7 @@ struct zr364xx_buffer *buf = container_of(vb, struct zr364xx_buffer, vb); - DBG("%s\n", __func__); + _DBG("%s\n", __func__); free_buffer(vq, buf); } @@ -463,7 +470,7 @@ { struct zr364xx_camera *cam = video_drvdata(file); - DBG("%s\n", __func__); + _DBG("%s\n", __func__); if (!buf) return -EINVAL; @@ -583,7 +590,7 @@ int i = 0; unsigned char *ptr = NULL; - /*DBG("buffer to user\n");*/ + _DBG("buffer to user\n"); idx = cam->cur_frame; frm = &cam->buffer.frame[idx]; @@ -601,12 +608,6 @@ return -EINVAL; } - if (frm->lpvbits == NULL) { - DBG("%s: frame buffer == NULL.%p %p %d\n", __func__, - frm, cam, idx); - return -ENOMEM; - } - psrc = (u8 *)pipe_info->transfer_buffer; ptr = pdest = frm->lpvbits; @@ -614,7 +615,7 @@ frm->ulState = ZR364XX_READ_FRAME; frm->cur_size = 0; - DBG("jpeg header, "); + _DBG("jpeg header, "); memcpy(ptr, header1, sizeof(header1)); ptr += sizeof(header1); header3 = 0; @@ -632,21 +633,28 @@ memcpy(ptr, psrc + 128, purb->actual_length - 128); ptr += purb->actual_length - 128; - DBG("header : %d %d %d %d %d %d %d %d %d\n", + _DBG("header : %d %d %d %d %d %d %d %d %d\n", psrc[0], psrc[1], psrc[2], psrc[3], psrc[4], psrc[5], psrc[6], psrc[7], psrc[8]); frm->cur_size = ptr - pdest; } else { - pdest += frm->cur_size; - memcpy(pdest, psrc, purb->actual_length); - frm->cur_size += purb->actual_length; + if (frm->cur_size + purb->actual_length > MAX_FRAME_SIZE) { + dev_info(&cam->udev->dev, + "%s: buffer (%d bytes) too small to hold " + "frame data. Discarding frame data.\n", + __func__, MAX_FRAME_SIZE); + } else { + pdest += frm->cur_size; + memcpy(pdest, psrc, purb->actual_length); + frm->cur_size += purb->actual_length; + } } - /*DBG("cur_size %lu urb size %d\n", frm->cur_size, + /*_DBG("cur_size %lu urb size %d\n", frm->cur_size, purb->actual_length);*/ if (purb->actual_length < pipe_info->transfer_size) { - DBG("****************Buffer[%d]full*************\n", idx); + _DBG("****************Buffer[%d]full*************\n", idx); cam->last_frame = cam->cur_frame; cam->cur_frame++; /* end of system frame ring buffer, start at zero */ @@ -681,7 +689,7 @@ if (cam->skip) cam->skip--; else { - DBG("jpeg(%lu): %d %d %d %d %d %d %d %d\n", + _DBG("jpeg(%lu): %d %d %d %d %d %d %d %d\n", frm->cur_size, pdest[0], pdest[1], pdest[2], pdest[3], pdest[4], pdest[5], pdest[6], pdest[7]); @@ -708,7 +716,7 @@ } /* it's free, grab it */ cam->resources = 1; - DBG("res: get\n"); + _DBG("res: get\n"); mutex_unlock(&cam->lock); return 1; } @@ -723,7 +731,7 @@ mutex_lock(&cam->lock); cam->resources = 0; mutex_unlock(&cam->lock); - DBG("res: put\n"); + _DBG("res: put\n"); } static int zr364xx_vidioc_querycap(struct file *file, void *priv, @@ -882,7 +890,6 @@ } f->fmt.pix.field = V4L2_FIELD_NONE; - f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; f->fmt.pix.bytesperline = f->fmt.pix.width * 2; f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline; f->fmt.pix.colorspace = 0; @@ -1018,7 +1025,7 @@ { int rc; struct zr364xx_camera *cam = video_drvdata(file); - DBG("%s\n", __func__); + _DBG("%s\n", __func__); rc = videobuf_qbuf(&cam->vb_vidq, p); return rc; } @@ -1029,7 +1036,7 @@ { int rc; struct zr364xx_camera *cam = video_drvdata(file); - DBG("%s\n", __func__); + _DBG("%s\n", __func__); rc = videobuf_dqbuf(&cam->vb_vidq, p, file->f_flags & O_NONBLOCK); return rc; } @@ -1041,7 +1048,7 @@ int pipe; pipe_info = purb->context; - /*DBG("%s %p, status %d\n", __func__, purb, purb->status);*/ + _DBG("%s %p, status %d\n", __func__, purb, purb->status); if (pipe_info == NULL) { printk(KERN_ERR KBUILD_MODNAME ": no context!\n"); return; @@ -1152,7 +1159,6 @@ pipe_info->stream_urb = NULL; } } - DBG("stop read pipe\n"); return; } @@ -1215,7 +1221,6 @@ } else { res_free(cam); } - DBG("%s: %d\n", __func__, res); return res; } @@ -1327,8 +1332,6 @@ /* release transfer buffer */ kfree(cam->pipe->transfer_buffer); cam->pipe->transfer_buffer = NULL; - - DBG("%s\n", __func__); mutex_unlock(&cam->open_lock); kfree(cam); cam = NULL; @@ -1409,7 +1412,7 @@ { struct zr364xx_camera *cam = video_drvdata(file); struct videobuf_queue *q = &cam->vb_vidq; - DBG("%s\n", __func__); + _DBG("%s\n", __func__); if (cam->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) return POLLERR; -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
