diff options
Diffstat (limited to 'drivers/media/video/gspca/gspca.c')
| -rw-r--r-- | drivers/media/video/gspca/gspca.c | 177 |
1 files changed, 118 insertions, 59 deletions
diff --git a/drivers/media/video/gspca/gspca.c b/drivers/media/video/gspca/gspca.c index 16e367cec760..ac95c55887df 100644 --- a/drivers/media/video/gspca/gspca.c +++ b/drivers/media/video/gspca/gspca.c @@ -32,6 +32,7 @@ #include <asm/page.h> #include <linux/uaccess.h> #include <linux/jiffies.h> +#include <media/v4l2-ioctl.h> #include "gspca.h" @@ -42,12 +43,11 @@ MODULE_AUTHOR("Jean-Francois Moine <http://moinejf.free.fr>"); MODULE_DESCRIPTION("GSPCA USB Camera Driver"); MODULE_LICENSE("GPL"); -#define DRIVER_VERSION_NUMBER KERNEL_VERSION(2, 1, 7) -static const char version[] = "2.1.7"; +#define DRIVER_VERSION_NUMBER KERNEL_VERSION(2, 2, 0) static int video_nr = -1; -#ifdef CONFIG_VIDEO_ADV_DEBUG +#ifdef GSPCA_DEBUG int gspca_debug = D_ERR | D_PROBE; EXPORT_SYMBOL(gspca_debug); @@ -114,7 +114,10 @@ static void fill_frame(struct gspca_dev *gspca_dev, cam_pkt_op pkt_scan; if (urb->status != 0) { - PDEBUG(D_ERR|D_PACK, "urb status: %d", urb->status); +#ifdef CONFIG_PM + if (!gspca_dev->frozen) +#endif + PDEBUG(D_ERR|D_PACK, "urb status: %d", urb->status); return; /* disconnection ? */ } pkt_scan = gspca_dev->sd_desc->pkt_scan; @@ -209,6 +212,8 @@ struct gspca_frame *gspca_frame_add(struct gspca_dev *gspca_dev, &frame->v4l2_buf.timestamp); frame->v4l2_buf.sequence = ++gspca_dev->sequence; } else if (gspca_dev->last_packet_type == DISCARD_PACKET) { + if (packet_type == LAST_PACKET) + gspca_dev->last_packet_type = packet_type; return frame; } @@ -399,7 +404,7 @@ static struct usb_host_endpoint *alt_isoc(struct usb_host_interface *alt, * This routine may be called many times when the bandwidth is too small * (the bandwidth is checked on urb submit). */ -struct usb_host_endpoint *get_isoc_ep(struct gspca_dev *gspca_dev) +static struct usb_host_endpoint *get_isoc_ep(struct gspca_dev *gspca_dev) { struct usb_interface *intf; struct usb_host_endpoint *ep; @@ -454,6 +459,7 @@ static int create_urbs(struct gspca_dev *gspca_dev, urb = usb_alloc_urb(npkt, GFP_KERNEL); if (!urb) { err("usb_alloc_urb failed"); + destroy_urbs(gspca_dev); return -ENOMEM; } urb->transfer_buffer = usb_buffer_alloc(gspca_dev->dev, @@ -463,8 +469,8 @@ static int create_urbs(struct gspca_dev *gspca_dev, if (urb->transfer_buffer == NULL) { usb_free_urb(urb); - destroy_urbs(gspca_dev); err("usb_buffer_urb failed"); + destroy_urbs(gspca_dev); return -ENOMEM; } gspca_dev->urb[n] = urb; @@ -553,10 +559,12 @@ static void gspca_stream_off(struct gspca_dev *gspca_dev) gspca_dev->streaming = 0; atomic_set(&gspca_dev->nevent, 0); if (gspca_dev->present) { - gspca_dev->sd_desc->stopN(gspca_dev); + if (gspca_dev->sd_desc->stopN) + gspca_dev->sd_desc->stopN(gspca_dev); destroy_urbs(gspca_dev); gspca_set_alt0(gspca_dev); - gspca_dev->sd_desc->stop0(gspca_dev); + if (gspca_dev->sd_desc->stop0) + gspca_dev->sd_desc->stop0(gspca_dev); PDEBUG(D_STREAM, "stream off OK"); } } @@ -675,7 +683,7 @@ static int try_fmt_vid_cap(struct gspca_dev *gspca_dev, w = fmt->fmt.pix.width; h = fmt->fmt.pix.height; -#ifdef CONFIG_VIDEO_ADV_DEBUG +#ifdef GSPCA_DEBUG if (gspca_debug & D_CONF) PDEBUG_MODE("try fmt cap", fmt->fmt.pix.pixelformat, w, h); #endif @@ -765,31 +773,20 @@ static int dev_open(struct inode *inode, struct file *file) goto out; } - /* if not done yet, initialize the sensor */ - if (gspca_dev->users == 0) { - if (mutex_lock_interruptible(&gspca_dev->usb_lock)) { - ret = -ERESTARTSYS; - goto out; - } - ret = gspca_dev->sd_desc->open(gspca_dev); - mutex_unlock(&gspca_dev->usb_lock); - if (ret != 0) { - PDEBUG(D_ERR|D_CONF, "init device failed %d", ret); - goto out; - } - } else if (gspca_dev->users > 4) { /* (arbitrary value) */ + if (gspca_dev->users > 4) { /* (arbitrary value) */ ret = -EBUSY; goto out; } gspca_dev->users++; file->private_data = gspca_dev; -#ifdef CONFIG_VIDEO_ADV_DEBUG +#ifdef GSPCA_DEBUG /* activate the v4l2 debug */ if (gspca_debug & D_V4L2) gspca_dev->vdev.debug |= 3; else gspca_dev->vdev.debug &= ~3; #endif + ret = 0; out: mutex_unlock(&gspca_dev->queue_lock); if (ret != 0) @@ -810,11 +807,11 @@ static int dev_close(struct inode *inode, struct file *file) /* if the file did the capture, free the streaming resources */ if (gspca_dev->capt_file == file) { - mutex_lock(&gspca_dev->usb_lock); - if (gspca_dev->streaming) + if (gspca_dev->streaming) { + mutex_lock(&gspca_dev->usb_lock); gspca_stream_off(gspca_dev); - gspca_dev->sd_desc->close(gspca_dev); - mutex_unlock(&gspca_dev->usb_lock); + mutex_unlock(&gspca_dev->usb_lock); + } frame_free(gspca_dev); gspca_dev->capt_file = NULL; gspca_dev->memory = GSPCA_MEMORY_NO; @@ -832,7 +829,16 @@ static int vidioc_querycap(struct file *file, void *priv, memset(cap, 0, sizeof *cap); strncpy(cap->driver, gspca_dev->sd_desc->name, sizeof cap->driver); - strncpy(cap->card, gspca_dev->cam.dev_name, sizeof cap->card); +/* strncpy(cap->card, gspca_dev->cam.dev_name, sizeof cap->card); */ + if (gspca_dev->dev->product != NULL) { + strncpy(cap->card, gspca_dev->dev->product, + sizeof cap->card); + } else { + snprintf(cap->card, sizeof cap->card, + "USB Camera (%04x:%04x)", + le16_to_cpu(gspca_dev->dev->descriptor.idVendor), + le16_to_cpu(gspca_dev->dev->descriptor.idProduct)); + } strncpy(cap->bus_info, gspca_dev->dev->bus->bus_name, sizeof cap->bus_info); cap->version = DRIVER_VERSION_NUMBER; @@ -842,42 +848,44 @@ static int vidioc_querycap(struct file *file, void *priv, return 0; } -/* the use of V4L2_CTRL_FLAG_NEXT_CTRL asks for the controls to be sorted */ static int vidioc_queryctrl(struct file *file, void *priv, struct v4l2_queryctrl *q_ctrl) { struct gspca_dev *gspca_dev = priv; - int i; + int i, ix; u32 id; + ix = -1; id = q_ctrl->id; if (id & V4L2_CTRL_FLAG_NEXT_CTRL) { id &= V4L2_CTRL_ID_MASK; id++; for (i = 0; i < gspca_dev->sd_desc->nctrls; i++) { - if (id >= gspca_dev->sd_desc->ctrls[i].qctrl.id) { - memcpy(q_ctrl, - &gspca_dev->sd_desc->ctrls[i].qctrl, - sizeof *q_ctrl); - return 0; + if (gspca_dev->sd_desc->ctrls[i].qctrl.id < id) + continue; + if (ix < 0) { + ix = i; + continue; } + if (gspca_dev->sd_desc->ctrls[i].qctrl.id + > gspca_dev->sd_desc->ctrls[ix].qctrl.id) + continue; + ix = i; } - return -EINVAL; } for (i = 0; i < gspca_dev->sd_desc->nctrls; i++) { if (id == gspca_dev->sd_desc->ctrls[i].qctrl.id) { - memcpy(q_ctrl, - &gspca_dev->sd_desc->ctrls[i].qctrl, - sizeof *q_ctrl); - return 0; + ix = i; + break; } } - if (id >= V4L2_CID_BASE - && id <= V4L2_CID_LASTP1) { + if (ix < 0) + return -EINVAL; + memcpy(q_ctrl, &gspca_dev->sd_desc->ctrls[ix].qctrl, + sizeof *q_ctrl); + if (gspca_dev->ctrl_dis & (1 << ix)) q_ctrl->flags |= V4L2_CTRL_FLAG_DISABLED; - return 0; - } - return -EINVAL; + return 0; } static int vidioc_s_ctrl(struct file *file, void *priv, @@ -892,8 +900,10 @@ static int vidioc_s_ctrl(struct file *file, void *priv, i++, ctrls++) { if (ctrl->id != ctrls->qctrl.id) continue; + if (gspca_dev->ctrl_dis & (1 << i)) + return -EINVAL; if (ctrl->value < ctrls->qctrl.minimum - && ctrl->value > ctrls->qctrl.maximum) + || ctrl->value > ctrls->qctrl.maximum) return -ERANGE; PDEBUG(D_CONF, "set ctrl [%08x] = %d", ctrl->id, ctrl->value); if (mutex_lock_interruptible(&gspca_dev->usb_lock)) @@ -918,6 +928,8 @@ static int vidioc_g_ctrl(struct file *file, void *priv, i++, ctrls++) { if (ctrl->id != ctrls->qctrl.id) continue; + if (gspca_dev->ctrl_dis & (1 << i)) + return -EINVAL; if (mutex_lock_interruptible(&gspca_dev->usb_lock)) return -ERESTARTSYS; ret = ctrls->get(gspca_dev, &ctrl->value); @@ -1069,7 +1081,7 @@ static int vidioc_streamon(struct file *file, void *priv, if (ret < 0) goto out; } -#ifdef CONFIG_VIDEO_ADV_DEBUG +#ifdef GSPCA_DEBUG if (gspca_debug & D_STREAM) { PDEBUG_MODE("stream on OK", gspca_dev->pixfmt, @@ -1392,7 +1404,7 @@ static int vidioc_dqbuf(struct file *file, void *priv, i = ret; /* frame index */ frame = &gspca_dev->frame[i]; if (gspca_dev->memory == V4L2_MEMORY_USERPTR) { - if (copy_to_user((__u8 *) frame->v4l2_buf.m.userptr, + if (copy_to_user((__u8 __user *) frame->v4l2_buf.m.userptr, frame->data, frame->v4l2_buf.bytesused)) { PDEBUG(D_ERR|D_STREAM, @@ -1649,12 +1661,7 @@ static struct file_operations dev_fops = { .poll = dev_poll, }; -static struct video_device gspca_template = { - .name = "gspca main driver", - .type = VID_TYPE_CAPTURE, - .fops = &dev_fops, - .release = dev_release, /* mandatory */ - .minor = -1, +static const struct v4l2_ioctl_ops dev_ioctl_ops = { .vidioc_querycap = vidioc_querycap, .vidioc_dqbuf = vidioc_dqbuf, .vidioc_qbuf = vidioc_qbuf, @@ -1683,6 +1690,14 @@ static struct video_device gspca_template = { #endif }; +static struct video_device gspca_template = { + .name = "gspca main driver", + .fops = &dev_fops, + .ioctl_ops = &dev_ioctl_ops, + .release = dev_release, /* mandatory */ + .minor = -1, +}; + /* * probe and create a new gspca device * @@ -1717,6 +1732,12 @@ int gspca_dev_probe(struct usb_interface *intf, err("couldn't kzalloc gspca struct"); return -EIO; } + gspca_dev->usb_buf = kmalloc(USB_BUF_SZ, GFP_KERNEL); + if (!gspca_dev->usb_buf) { + err("out of memory"); + ret = -EIO; + goto out; + } gspca_dev->dev = dev; gspca_dev->iface = interface->bInterfaceNumber; gspca_dev->nbalt = intf->num_altsetting; @@ -1724,10 +1745,13 @@ int gspca_dev_probe(struct usb_interface *intf, /* gspca_dev->users = 0; (done by kzalloc) */ gspca_dev->nbufread = 2; - /* configure the subdriver */ + /* configure the subdriver and initialize the USB device */ ret = gspca_dev->sd_desc->config(gspca_dev, id); if (ret < 0) goto out; + ret = gspca_dev->sd_desc->init(gspca_dev); + if (ret < 0) + goto out; ret = gspca_set_alt0(gspca_dev); if (ret < 0) goto out; @@ -1740,10 +1764,11 @@ int gspca_dev_probe(struct usb_interface *intf, /* init video stuff */ memcpy(&gspca_dev->vdev, &gspca_template, sizeof gspca_template); - gspca_dev->vdev.dev = &dev->dev; + gspca_dev->vdev.parent = &dev->dev; memcpy(&gspca_dev->fops, &dev_fops, sizeof gspca_dev->fops); gspca_dev->vdev.fops = &gspca_dev->fops; gspca_dev->fops.owner = module; /* module protection */ + gspca_dev->present = 1; ret = video_register_device(&gspca_dev->vdev, VFL_TYPE_GRABBER, video_nr); @@ -1752,11 +1777,11 @@ int gspca_dev_probe(struct usb_interface *intf, goto out; } - gspca_dev->present = 1; usb_set_intfdata(intf, gspca_dev); PDEBUG(D_PROBE, "probe ok"); return 0; out: + kfree(gspca_dev->usb_buf); kfree(gspca_dev); return ret; } @@ -1789,11 +1814,42 @@ void gspca_disconnect(struct usb_interface *intf) /* We don't want people trying to open up the device */ video_unregister_device(&gspca_dev->vdev); /* Free the memory */ + kfree(gspca_dev->usb_buf); kfree(gspca_dev); PDEBUG(D_PROBE, "disconnect complete"); } EXPORT_SYMBOL(gspca_disconnect); +#ifdef CONFIG_PM +int gspca_suspend(struct usb_interface *intf, pm_message_t message) +{ + struct gspca_dev *gspca_dev = usb_get_intfdata(intf); + + if (!gspca_dev->streaming) + return 0; + gspca_dev->frozen = 1; /* avoid urb error messages */ + if (gspca_dev->sd_desc->stopN) + gspca_dev->sd_desc->stopN(gspca_dev); + destroy_urbs(gspca_dev); + gspca_set_alt0(gspca_dev); + if (gspca_dev->sd_desc->stop0) + gspca_dev->sd_desc->stop0(gspca_dev); + return 0; +} +EXPORT_SYMBOL(gspca_suspend); + +int gspca_resume(struct usb_interface *intf) +{ + struct gspca_dev *gspca_dev = usb_get_intfdata(intf); + + gspca_dev->frozen = 0; + gspca_dev->sd_desc->init(gspca_dev); + if (gspca_dev->streaming) + return gspca_init_transfer(gspca_dev); + return 0; +} +EXPORT_SYMBOL(gspca_resume); +#endif /* -- cam driver utility functions -- */ /* auto gain and exposure algorithm based on the knee algorithm described here: @@ -1885,7 +1941,10 @@ EXPORT_SYMBOL(gspca_auto_gain_n_exposure); /* -- module insert / remove -- */ static int __init gspca_init(void) { - info("main v%s registered", version); + info("main v%d.%d.%d registered", + (DRIVER_VERSION_NUMBER >> 16) & 0xff, + (DRIVER_VERSION_NUMBER >> 8) & 0xff, + DRIVER_VERSION_NUMBER & 0xff); return 0; } static void __exit gspca_exit(void) @@ -1896,7 +1955,7 @@ static void __exit gspca_exit(void) module_init(gspca_init); module_exit(gspca_exit); -#ifdef CONFIG_VIDEO_ADV_DEBUG +#ifdef GSPCA_DEBUG module_param_named(debug, gspca_debug, int, 0644); MODULE_PARM_DESC(debug, "Debug (bit) 0x01:error 0x02:probe 0x04:config" |