/*
* Main USB camera driver
*
- * V4L2 by Jean-Francois Moine <http://moinejf.free.fr>
+ * Copyright (C) 2008-2009 Jean-Francois Moine (http://moinejf.free.fr)
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
#include <linux/string.h>
#include <linux/pagemap.h>
#include <linux/io.h>
-#include <linux/kref.h>
#include <asm/page.h>
#include <linux/uaccess.h>
#include <linux/jiffies.h>
#include "gspca.h"
/* global values */
-#define DEF_NURBS 2 /* default number of URBs */
+#define DEF_NURBS 3 /* default number of URBs */
+#if DEF_NURBS > MAX_NURBS
+#error "DEF_NURBS too big"
+#endif
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, 3, 0)
-
-static int video_nr = -1;
+#define DRIVER_VERSION_NUMBER KERNEL_VERSION(2, 7, 0)
#ifdef GSPCA_DEBUG
int gspca_debug = D_ERR | D_PROBE;
frame->v4l2_buf.flags &= ~V4L2_BUF_FLAG_MAPPED;
}
-static struct vm_operations_struct gspca_vm_ops = {
+static const struct vm_operations_struct gspca_vm_ops = {
.open = gspca_vm_open,
.close = gspca_vm_close,
};
struct urb *urb)
{
struct gspca_frame *frame;
- __u8 *data; /* address of data in the iso message */
+ u8 *data; /* address of data in the iso message */
int i, len, st;
cam_pkt_op pkt_scan;
if (urb->status != 0) {
+ if (urb->status == -ESHUTDOWN)
+ return; /* disconnection */
#ifdef CONFIG_PM
if (!gspca_dev->frozen)
#endif
PDEBUG(D_ERR|D_PACK, "urb status: %d", urb->status);
- return; /* disconnection ? */
+ return;
}
pkt_scan = gspca_dev->sd_desc->pkt_scan;
for (i = 0; i < urb->number_of_packets; i++) {
/* check the packet status and length */
len = urb->iso_frame_desc[i].actual_length;
- if (len == 0)
+ if (len == 0) {
+ if (gspca_dev->empty_packet == 0)
+ gspca_dev->empty_packet = 1;
continue;
+ }
st = urb->iso_frame_desc[i].status;
if (st) {
PDEBUG(D_ERR,
/* let the packet be analyzed by the subdriver */
PDEBUG(D_PACK, "packet [%d] o:%d l:%d",
i, urb->iso_frame_desc[i].offset, len);
- data = (__u8 *) urb->transfer_buffer
+ data = (u8 *) urb->transfer_buffer
+ urb->iso_frame_desc[i].offset;
pkt_scan(gspca_dev, frame, data, len);
}
/* resubmit the URB */
- urb->status = 0;
st = usb_submit_urb(urb, GFP_ATOMIC);
if (st < 0)
PDEBUG(D_ERR|D_PACK, "usb_submit_urb() ret %d", st);
*
* Analyse each packet and call the subdriver for copy to the frame buffer.
*/
-static void isoc_irq(struct urb *urb
-)
+static void isoc_irq(struct urb *urb)
{
struct gspca_dev *gspca_dev = (struct gspca_dev *) urb->context;
/*
* bulk message interrupt from the USB device
*/
-static void bulk_irq(struct urb *urb
-)
+static void bulk_irq(struct urb *urb)
{
struct gspca_dev *gspca_dev = (struct gspca_dev *) urb->context;
struct gspca_frame *frame;
+ int st;
PDEBUG(D_PACK, "bulk irq");
if (!gspca_dev->streaming)
return;
- if (urb->status != 0 && urb->status != -ECONNRESET) {
+ switch (urb->status) {
+ case 0:
+ break;
+ case -ESHUTDOWN:
+ return; /* disconnection */
+ case -ECONNRESET:
+ urb->status = 0;
+ break;
+ default:
#ifdef CONFIG_PM
if (!gspca_dev->frozen)
#endif
PDEBUG(D_ERR|D_PACK, "urb status: %d", urb->status);
- return; /* disconnection ? */
+ return;
}
/* check the availability of the frame buffer */
urb->transfer_buffer,
urb->actual_length);
}
+
+ /* resubmit the URB */
+ if (gspca_dev->cam.bulk_nurbs != 0) {
+ st = usb_submit_urb(urb, GFP_ATOMIC);
+ if (st < 0)
+ PDEBUG(D_ERR|D_PACK, "usb_submit_urb() ret %d", st);
+ }
}
/*
frame->v4l2_buf.bytesused = frame->data_end - frame->data;
frame->v4l2_buf.flags &= ~V4L2_BUF_FLAG_QUEUED;
frame->v4l2_buf.flags |= V4L2_BUF_FLAG_DONE;
- atomic_inc(&gspca_dev->nevent);
wake_up_interruptible(&gspca_dev->wq); /* event = new frame */
i = (gspca_dev->fr_i + 1) % gspca_dev->nframes;
gspca_dev->fr_i = i;
case V4L2_PIX_FMT_JPEG:
case V4L2_PIX_FMT_SPCA561:
case V4L2_PIX_FMT_PAC207:
+ case V4L2_PIX_FMT_MR97310A:
return 1;
}
return 0;
gspca_dev->fr_i = gspca_dev->fr_o = gspca_dev->fr_q = 0;
gspca_dev->last_packet_type = DISCARD_PACKET;
gspca_dev->sequence = 0;
- atomic_set(&gspca_dev->nevent, 0);
return 0;
}
* look for an input transfer endpoint in an alternate setting
*/
static struct usb_host_endpoint *alt_xfer(struct usb_host_interface *alt,
- __u8 epaddr,
- __u8 xfer)
+ int xfer)
{
struct usb_host_endpoint *ep;
int i, attr;
- epaddr |= USB_DIR_IN;
for (i = 0; i < alt->desc.bNumEndpoints; i++) {
ep = &alt->endpoint[i];
- if (ep->desc.bEndpointAddress == epaddr) {
- attr = ep->desc.bmAttributes
- & USB_ENDPOINT_XFERTYPE_MASK;
- if (attr == xfer)
- return ep;
- break;
- }
+ attr = ep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK;
+ if (attr == xfer
+ && ep->desc.wMaxPacketSize != 0)
+ return ep;
}
return NULL;
}
{
struct usb_interface *intf;
struct usb_host_endpoint *ep;
- int i, ret;
+ int xfer, i, ret;
intf = usb_ifnum_to_if(gspca_dev->dev, gspca_dev->iface);
ep = NULL;
+ xfer = gspca_dev->cam.bulk ? USB_ENDPOINT_XFER_BULK
+ : USB_ENDPOINT_XFER_ISOC;
i = gspca_dev->alt; /* previous alt setting */
-
- /* try isoc */
- while (--i > 0) { /* alt 0 is unusable */
- ep = alt_xfer(&intf->altsetting[i],
- gspca_dev->cam.epaddr,
- USB_ENDPOINT_XFER_ISOC);
+ while (--i >= 0) {
+ ep = alt_xfer(&intf->altsetting[i], xfer);
if (ep)
break;
}
-
- /* if no isoc, try bulk */
if (ep == NULL) {
- ep = alt_xfer(&intf->altsetting[0],
- gspca_dev->cam.epaddr,
- USB_ENDPOINT_XFER_BULK);
- if (ep == NULL) {
- err("no transfer endpoint found");
- return NULL;
- }
+ err("no transfer endpoint found");
+ return NULL;
}
PDEBUG(D_STREAM, "use alt %d ep 0x%02x",
i, ep->desc.bEndpointAddress);
- if (i > 0) {
+ gspca_dev->alt = i; /* memorize the current alt setting */
+ if (gspca_dev->nbalt > 1) {
ret = usb_set_interface(gspca_dev->dev, gspca_dev->iface, i);
if (ret < 0) {
- err("set interface err %d", ret);
+ err("set alt %d err %d", i, ret);
return NULL;
}
}
- gspca_dev->alt = i; /* memorize the current alt setting */
return ep;
}
/* calculate the packet size and the number of packets */
psize = le16_to_cpu(ep->desc.wMaxPacketSize);
- if (gspca_dev->alt != 0) { /* isoc */
+ if (!gspca_dev->cam.bulk) { /* isoc */
/* See paragraph 5.9 / table 5-11 of the usb 2.0 spec. */
- psize = (psize & 0x07ff) * (1 + ((psize >> 11) & 3));
- npkt = ISO_MAX_SIZE / psize;
- if (npkt > ISO_MAX_PKT)
- npkt = ISO_MAX_PKT;
+ if (gspca_dev->pkt_size == 0)
+ psize = (psize & 0x07ff) * (1 + ((psize >> 11) & 3));
+ else
+ psize = gspca_dev->pkt_size;
+ npkt = gspca_dev->cam.npkt;
+ if (npkt == 0)
+ npkt = 32; /* default value */
bsize = psize * npkt;
PDEBUG(D_STREAM,
"isoc %d pkts size %d = bsize:%d",
nurbs = DEF_NURBS;
} else { /* bulk */
npkt = 0;
- bsize = gspca_dev->cam. bulk_size;
+ bsize = gspca_dev->cam.bulk_size;
if (bsize == 0)
bsize = psize;
PDEBUG(D_STREAM, "bulk bsize:%d", bsize);
- nurbs = 1;
+ if (gspca_dev->cam.bulk_nurbs != 0)
+ nurbs = gspca_dev->cam.bulk_nurbs;
+ else
+ nurbs = 1;
}
gspca_dev->nurbs = nurbs;
if (mutex_lock_interruptible(&gspca_dev->usb_lock))
return -ERESTARTSYS;
+ if (!gspca_dev->present) {
+ ret = -ENODEV;
+ goto out;
+ }
+
/* set the higher alternate setting and
* loop until urb submit succeeds */
gspca_dev->alt = gspca_dev->nbalt;
+ if (gspca_dev->sd_desc->isoc_init) {
+ ret = gspca_dev->sd_desc->isoc_init(gspca_dev);
+ if (ret < 0)
+ goto out;
+ }
+ ep = get_ep(gspca_dev);
+ if (ep == NULL) {
+ ret = -EIO;
+ goto out;
+ }
for (;;) {
PDEBUG(D_STREAM, "init transfer alt %d", gspca_dev->alt);
- ep = get_ep(gspca_dev);
- if (ep == NULL) {
- ret = -EIO;
- goto out;
- }
ret = create_urbs(gspca_dev, ep);
if (ret < 0)
goto out;
+ /* clear the bulk endpoint */
+ if (gspca_dev->cam.bulk)
+ usb_clear_halt(gspca_dev->dev,
+ gspca_dev->urb[0]->pipe);
+
/* start the cam */
ret = gspca_dev->sd_desc->start(gspca_dev);
if (ret < 0) {
goto out;
}
gspca_dev->streaming = 1;
- atomic_set(&gspca_dev->nevent, 0);
- /* bulk transfers are started by the subdriver */
- if (gspca_dev->alt == 0)
+ /* some bulk transfers are started by the subdriver */
+ if (gspca_dev->cam.bulk && gspca_dev->cam.bulk_nurbs == 0)
break;
/* submit the URBs */
for (n = 0; n < gspca_dev->nurbs; n++) {
ret = usb_submit_urb(gspca_dev->urb[n], GFP_KERNEL);
- if (ret < 0) {
- PDEBUG(D_ERR|D_STREAM,
- "usb_submit_urb [%d] err %d", n, ret);
- gspca_dev->streaming = 0;
- destroy_urbs(gspca_dev);
- if (ret == -ENOSPC)
- break; /* try the previous alt */
- goto out;
- }
+ if (ret < 0)
+ break;
}
if (ret >= 0)
break;
+ PDEBUG(D_ERR|D_STREAM,
+ "usb_submit_urb alt %d err %d", gspca_dev->alt, ret);
+ gspca_dev->streaming = 0;
+ destroy_urbs(gspca_dev);
+ if (ret != -ENOSPC)
+ goto out;
+
+ /* the bandwidth is not wide enough
+ * negociate or try a lower alternate setting */
+ msleep(20); /* wait for kill complete */
+ if (gspca_dev->sd_desc->isoc_nego) {
+ ret = gspca_dev->sd_desc->isoc_nego(gspca_dev);
+ if (ret < 0)
+ goto out;
+ } else {
+ ep = get_ep(gspca_dev);
+ if (ep == NULL) {
+ ret = -EIO;
+ goto out;
+ }
+ }
}
out:
mutex_unlock(&gspca_dev->usb_lock);
{
int ret;
+ if (gspca_dev->alt == 0)
+ return 0;
ret = usb_set_interface(gspca_dev->dev, gspca_dev->iface, 0);
if (ret < 0)
- PDEBUG(D_ERR|D_STREAM, "set interface 0 err %d", ret);
+ PDEBUG(D_ERR|D_STREAM, "set alt 0 err %d", ret);
return ret;
}
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->sd_desc->stopN(gspca_dev);
- destroy_urbs(gspca_dev);
- gspca_set_alt0(gspca_dev);
+ if (gspca_dev->present) {
+ if (gspca_dev->sd_desc->stopN)
+ gspca_dev->sd_desc->stopN(gspca_dev);
+ destroy_urbs(gspca_dev);
+ gspca_set_alt0(gspca_dev);
+ }
+
+ /* always call stop0 to free the subdriver's resources */
if (gspca_dev->sd_desc->stop0)
gspca_dev->sd_desc->stop0(gspca_dev);
PDEBUG(D_STREAM, "stream off OK");
return -EINVAL;
}
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+static int vidioc_g_register(struct file *file, void *priv,
+ struct v4l2_dbg_register *reg)
+{
+ int ret;
+ struct gspca_dev *gspca_dev = priv;
+
+ if (!gspca_dev->sd_desc->get_chip_ident)
+ return -EINVAL;
+
+ if (!gspca_dev->sd_desc->get_register)
+ return -EINVAL;
+
+ if (mutex_lock_interruptible(&gspca_dev->usb_lock))
+ return -ERESTARTSYS;
+ if (gspca_dev->present)
+ ret = gspca_dev->sd_desc->get_register(gspca_dev, reg);
+ else
+ ret = -ENODEV;
+ mutex_unlock(&gspca_dev->usb_lock);
+
+ return ret;
+}
+
+static int vidioc_s_register(struct file *file, void *priv,
+ struct v4l2_dbg_register *reg)
+{
+ int ret;
+ struct gspca_dev *gspca_dev = priv;
+
+ if (!gspca_dev->sd_desc->get_chip_ident)
+ return -EINVAL;
+
+ if (!gspca_dev->sd_desc->set_register)
+ return -EINVAL;
+
+ if (mutex_lock_interruptible(&gspca_dev->usb_lock))
+ return -ERESTARTSYS;
+ if (gspca_dev->present)
+ ret = gspca_dev->sd_desc->set_register(gspca_dev, reg);
+ else
+ ret = -ENODEV;
+ mutex_unlock(&gspca_dev->usb_lock);
+
+ return ret;
+}
+#endif
+
+static int vidioc_g_chip_ident(struct file *file, void *priv,
+ struct v4l2_dbg_chip_ident *chip)
+{
+ int ret;
+ struct gspca_dev *gspca_dev = priv;
+
+ if (!gspca_dev->sd_desc->get_chip_ident)
+ return -EINVAL;
+
+ if (mutex_lock_interruptible(&gspca_dev->usb_lock))
+ return -ERESTARTSYS;
+ if (gspca_dev->present)
+ ret = gspca_dev->sd_desc->get_chip_ident(gspca_dev, chip);
+ else
+ ret = -ENODEV;
+ mutex_unlock(&gspca_dev->usb_lock);
+
+ return ret;
+}
+
static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_fmtdesc *fmtdesc)
{
if (fmtdesc->index == index)
break; /* new format */
index++;
- if (index >= sizeof fmt_tb / sizeof fmt_tb[0])
+ if (index >= ARRAY_SIZE(fmt_tb))
return -EINVAL;
}
}
fmtdesc->pixelformat = fmt_tb[index];
if (gspca_is_compressed(fmt_tb[index]))
fmtdesc->flags = V4L2_FMT_FLAG_COMPRESSED;
- fmtdesc->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
fmtdesc->description[0] = fmtdesc->pixelformat & 0xff;
fmtdesc->description[1] = (fmtdesc->pixelformat >> 8) & 0xff;
fmtdesc->description[2] = (fmtdesc->pixelformat >> 16) & 0xff;
struct gspca_dev *gspca_dev = priv;
int mode;
- if (fmt->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return -EINVAL;
mode = gspca_dev->curr_mode;
memcpy(&fmt->fmt.pix, &gspca_dev->cam.cam_mode[mode],
sizeof fmt->fmt.pix);
{
int w, h, mode, mode2;
- if (fmt->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return -EINVAL;
w = fmt->fmt.pix.width;
h = fmt->fmt.pix.height;
return ret;
}
-static void gspca_delete(struct kref *kref)
+static int vidioc_enum_framesizes(struct file *file, void *priv,
+ struct v4l2_frmsizeenum *fsize)
{
- struct gspca_dev *gspca_dev = container_of(kref, struct gspca_dev, kref);
+ struct gspca_dev *gspca_dev = priv;
+ int i;
+ __u32 index = 0;
- PDEBUG(D_STREAM, "device deleted");
+ for (i = 0; i < gspca_dev->cam.nmodes; i++) {
+ if (fsize->pixel_format !=
+ gspca_dev->cam.cam_mode[i].pixelformat)
+ continue;
+
+ if (fsize->index == index) {
+ fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
+ fsize->discrete.width =
+ gspca_dev->cam.cam_mode[i].width;
+ fsize->discrete.height =
+ gspca_dev->cam.cam_mode[i].height;
+ return 0;
+ }
+ index++;
+ }
+
+ return -EINVAL;
+}
+
+static void gspca_release(struct video_device *vfd)
+{
+ struct gspca_dev *gspca_dev = container_of(vfd, struct gspca_dev, vdev);
+
+ PDEBUG(D_STREAM, "device released");
kfree(gspca_dev->usb_buf);
kfree(gspca_dev);
}
-static int dev_open(struct inode *inode, struct file *file)
+static int dev_open(struct file *file)
{
struct gspca_dev *gspca_dev;
int ret;
PDEBUG(D_STREAM, "%s open", current->comm);
- gspca_dev = video_drvdata(file);
+ gspca_dev = (struct gspca_dev *) video_devdata(file);
if (mutex_lock_interruptible(&gspca_dev->queue_lock))
return -ERESTARTSYS;
if (!gspca_dev->present) {
gspca_dev->users++;
- /* one more user */
- kref_get(&gspca_dev->kref);
-
file->private_data = gspca_dev;
#ifdef GSPCA_DEBUG
/* activate the v4l2 debug */
if (gspca_debug & D_V4L2)
- gspca_dev->vdev->debug |= V4L2_DEBUG_IOCTL
+ gspca_dev->vdev.debug |= V4L2_DEBUG_IOCTL
| V4L2_DEBUG_IOCTL_ARG;
else
- gspca_dev->vdev->debug &= ~(V4L2_DEBUG_IOCTL
+ gspca_dev->vdev.debug &= ~(V4L2_DEBUG_IOCTL
| V4L2_DEBUG_IOCTL_ARG);
#endif
ret = 0;
return ret;
}
-static int dev_close(struct inode *inode, struct file *file)
+static int dev_close(struct file *file)
{
struct gspca_dev *gspca_dev = file->private_data;
PDEBUG(D_STREAM, "close done");
- kref_put(&gspca_dev->kref, gspca_delete);
-
return 0;
}
struct v4l2_capability *cap)
{
struct gspca_dev *gspca_dev = priv;
+ int ret;
- memset(cap, 0, sizeof *cap);
+ /* protect the access to the usb device */
+ if (mutex_lock_interruptible(&gspca_dev->usb_lock))
+ return -ERESTARTSYS;
+ if (!gspca_dev->present) {
+ ret = -ENODEV;
+ goto out;
+ }
strncpy(cap->driver, gspca_dev->sd_desc->name, sizeof cap->driver);
if (gspca_dev->dev->product != NULL) {
strncpy(cap->card, gspca_dev->dev->product,
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);
+ usb_make_path(gspca_dev->dev, cap->bus_info, sizeof(cap->bus_info));
cap->version = DRIVER_VERSION_NUMBER;
cap->capabilities = V4L2_CAP_VIDEO_CAPTURE
| V4L2_CAP_STREAMING
| V4L2_CAP_READWRITE;
- return 0;
+ ret = 0;
+out:
+ mutex_unlock(&gspca_dev->usb_lock);
+ return ret;
+}
+
+static const struct ctrl *get_ctrl(struct gspca_dev *gspca_dev,
+ int id)
+{
+ const struct ctrl *ctrls;
+ int i;
+
+ for (i = 0, ctrls = gspca_dev->sd_desc->ctrls;
+ i < gspca_dev->sd_desc->nctrls;
+ i++, ctrls++) {
+ if (gspca_dev->ctrl_dis & (1 << i))
+ continue;
+ if (id == ctrls->qctrl.id)
+ return ctrls;
+ }
+ return NULL;
}
static int vidioc_queryctrl(struct file *file, void *priv,
struct v4l2_queryctrl *q_ctrl)
{
struct gspca_dev *gspca_dev = priv;
- int i, ix;
+ const struct ctrl *ctrls;
+ int i;
u32 id;
- ix = -1;
+ ctrls = NULL;
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 (gspca_dev->sd_desc->ctrls[i].qctrl.id < id)
+ if (gspca_dev->ctrl_dis & (1 << i))
continue;
- if (ix < 0) {
- ix = i;
+ if (gspca_dev->sd_desc->ctrls[i].qctrl.id < id)
continue;
- }
- if (gspca_dev->sd_desc->ctrls[i].qctrl.id
- > gspca_dev->sd_desc->ctrls[ix].qctrl.id)
+ if (ctrls && gspca_dev->sd_desc->ctrls[i].qctrl.id
+ > ctrls->qctrl.id)
continue;
- ix = i;
- }
- }
- for (i = 0; i < gspca_dev->sd_desc->nctrls; i++) {
- if (id == gspca_dev->sd_desc->ctrls[i].qctrl.id) {
- ix = i;
- break;
+ ctrls = &gspca_dev->sd_desc->ctrls[i];
}
+ } else {
+ ctrls = get_ctrl(gspca_dev, id);
}
- if (ix < 0)
+ if (ctrls == NULL)
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;
+ memcpy(q_ctrl, ctrls, sizeof *q_ctrl);
return 0;
}
{
struct gspca_dev *gspca_dev = priv;
const struct ctrl *ctrls;
- int i, ret;
+ int ret;
- for (i = 0, ctrls = gspca_dev->sd_desc->ctrls;
- i < gspca_dev->sd_desc->nctrls;
- 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)
- return -ERANGE;
- PDEBUG(D_CONF, "set ctrl [%08x] = %d", ctrl->id, ctrl->value);
- if (mutex_lock_interruptible(&gspca_dev->usb_lock))
- return -ERESTARTSYS;
+ ctrls = get_ctrl(gspca_dev, ctrl->id);
+ if (ctrls == NULL)
+ return -EINVAL;
+
+ if (ctrl->value < ctrls->qctrl.minimum
+ || 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))
+ return -ERESTARTSYS;
+ if (gspca_dev->present)
ret = ctrls->set(gspca_dev, ctrl->value);
- mutex_unlock(&gspca_dev->usb_lock);
- return ret;
- }
- return -EINVAL;
+ else
+ ret = -ENODEV;
+ mutex_unlock(&gspca_dev->usb_lock);
+ return ret;
}
static int vidioc_g_ctrl(struct file *file, void *priv,
struct v4l2_control *ctrl)
{
struct gspca_dev *gspca_dev = priv;
-
const struct ctrl *ctrls;
- int i, ret;
+ int ret;
- for (i = 0, ctrls = gspca_dev->sd_desc->ctrls;
- i < gspca_dev->sd_desc->nctrls;
- 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;
+ ctrls = get_ctrl(gspca_dev, ctrl->id);
+ if (ctrls == NULL)
+ return -EINVAL;
+
+ if (mutex_lock_interruptible(&gspca_dev->usb_lock))
+ return -ERESTARTSYS;
+ if (gspca_dev->present)
ret = ctrls->get(gspca_dev, &ctrl->value);
- mutex_unlock(&gspca_dev->usb_lock);
- return ret;
- }
- return -EINVAL;
+ else
+ ret = -ENODEV;
+ mutex_unlock(&gspca_dev->usb_lock);
+ return ret;
+}
+
+/*fixme: have an audio flag in gspca_dev?*/
+static int vidioc_s_audio(struct file *file, void *priv,
+ struct v4l2_audio *audio)
+{
+ if (audio->index != 0)
+ return -EINVAL;
+ return 0;
+}
+
+static int vidioc_g_audio(struct file *file, void *priv,
+ struct v4l2_audio *audio)
+{
+ strcpy(audio->name, "Microphone");
+ return 0;
+}
+
+static int vidioc_enumaudio(struct file *file, void *priv,
+ struct v4l2_audio *audio)
+{
+ if (audio->index != 0)
+ return -EINVAL;
+
+ strcpy(audio->name, "Microphone");
+ audio->capability = 0;
+ audio->mode = 0;
+ return 0;
}
static int vidioc_querymenu(struct file *file, void *priv,
if (input->index != 0)
return -EINVAL;
- memset(input, 0, sizeof *input);
input->type = V4L2_INPUT_TYPE_CAMERA;
+ input->status = gspca_dev->cam.input_flags;
strncpy(input->name, gspca_dev->sd_desc->name,
sizeof input->name);
return 0;
struct gspca_dev *gspca_dev = priv;
int i, ret = 0;
- if (rb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return -EINVAL;
switch (rb->memory) {
case GSPCA_MEMORY_READ: /* (internal call) */
case V4L2_MEMORY_MMAP:
struct gspca_dev *gspca_dev = priv;
struct gspca_frame *frame;
- if (v4l2_buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE
- || v4l2_buf->index < 0
+ if (v4l2_buf->index < 0
|| v4l2_buf->index >= gspca_dev->nframes)
return -EINVAL;
return -EINVAL;
if (mutex_lock_interruptible(&gspca_dev->queue_lock))
return -ERESTARTSYS;
- if (!gspca_dev->present) {
- ret = -ENODEV;
- goto out;
- }
- if (gspca_dev->nframes == 0) {
+
+ if (gspca_dev->nframes == 0
+ || !(gspca_dev->frame[0].v4l2_buf.flags & V4L2_BUF_FLAG_QUEUED)) {
ret = -EINVAL;
goto out;
}
gspca_dev->fr_i = gspca_dev->fr_o = gspca_dev->fr_q = 0;
gspca_dev->last_packet_type = DISCARD_PACKET;
gspca_dev->sequence = 0;
- atomic_set(&gspca_dev->nevent, 0);
ret = 0;
out:
mutex_unlock(&gspca_dev->queue_lock);
return -EINVAL;
if (mutex_lock_interruptible(&gspca_dev->usb_lock))
return -ERESTARTSYS;
- ret = gspca_dev->sd_desc->get_jcomp(gspca_dev, jpegcomp);
+ if (gspca_dev->present)
+ ret = gspca_dev->sd_desc->get_jcomp(gspca_dev, jpegcomp);
+ else
+ ret = -ENODEV;
mutex_unlock(&gspca_dev->usb_lock);
return ret;
}
return -EINVAL;
if (mutex_lock_interruptible(&gspca_dev->usb_lock))
return -ERESTARTSYS;
- ret = gspca_dev->sd_desc->set_jcomp(gspca_dev, jpegcomp);
+ if (gspca_dev->present)
+ ret = gspca_dev->sd_desc->set_jcomp(gspca_dev, jpegcomp);
+ else
+ ret = -ENODEV;
mutex_unlock(&gspca_dev->usb_lock);
return ret;
}
{
struct gspca_dev *gspca_dev = priv;
- memset(parm, 0, sizeof *parm);
- parm->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
parm->parm.capture.readbuffers = gspca_dev->nbufread;
+
+ if (gspca_dev->sd_desc->get_streamparm) {
+ int ret;
+
+ if (mutex_lock_interruptible(&gspca_dev->usb_lock))
+ return -ERESTARTSYS;
+ if (gspca_dev->present)
+ ret = gspca_dev->sd_desc->get_streamparm(gspca_dev,
+ parm);
+ else
+ ret = -ENODEV;
+ mutex_unlock(&gspca_dev->usb_lock);
+ return ret;
+ }
+
return 0;
}
parm->parm.capture.readbuffers = gspca_dev->nbufread;
else
gspca_dev->nbufread = n;
- return 0;
-}
-static int vidioc_s_std(struct file *filp, void *priv,
- v4l2_std_id *parm)
-{
+ if (gspca_dev->sd_desc->set_streamparm) {
+ int ret;
+
+ if (mutex_lock_interruptible(&gspca_dev->usb_lock))
+ return -ERESTARTSYS;
+ if (gspca_dev->present)
+ ret = gspca_dev->sd_desc->set_streamparm(gspca_dev,
+ parm);
+ else
+ ret = -ENODEV;
+ mutex_unlock(&gspca_dev->usb_lock);
+ return ret;
+ }
+
return 0;
}
{
struct v4l2_format fmt;
- memset(&fmt, 0, sizeof fmt);
fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
i = gspca_dev->cam.nmodes - 1; /* highest mode */
fmt.fmt.pix.width = gspca_dev->cam.cam_mode[i].width;
i = gspca_dev->fr_o;
j = gspca_dev->fr_queue[i];
frame = &gspca_dev->frame[j];
- if (frame->v4l2_buf.flags & V4L2_BUF_FLAG_DONE) {
- atomic_dec(&gspca_dev->nevent);
- goto ok;
- }
- if (nonblock_ing) /* no frame yet */
- return -EAGAIN;
- /* wait till a frame is ready */
- for (;;) {
+ if (!(frame->v4l2_buf.flags & V4L2_BUF_FLAG_DONE)) {
+ if (nonblock_ing)
+ return -EAGAIN;
+
+ /* wait till a frame is ready */
ret = wait_event_interruptible_timeout(gspca_dev->wq,
- atomic_read(&gspca_dev->nevent) > 0,
- msecs_to_jiffies(3000));
- if (ret <= 0) {
- if (ret < 0)
- return ret; /* interrupt */
- return -EIO; /* timeout */
- }
- atomic_dec(&gspca_dev->nevent);
- if (!gspca_dev->streaming || !gspca_dev->present)
+ (frame->v4l2_buf.flags & V4L2_BUF_FLAG_DONE) ||
+ !gspca_dev->streaming || !gspca_dev->present,
+ msecs_to_jiffies(3000));
+ if (ret < 0)
+ return ret;
+ if (ret == 0 || !gspca_dev->streaming || !gspca_dev->present)
return -EIO;
- i = gspca_dev->fr_o;
- j = gspca_dev->fr_queue[i];
- frame = &gspca_dev->frame[j];
- if (frame->v4l2_buf.flags & V4L2_BUF_FLAG_DONE)
- break;
}
-ok:
+
gspca_dev->fr_o = (i + 1) % gspca_dev->nframes;
PDEBUG(D_FRAM, "frame wait q:%d i:%d o:%d",
gspca_dev->fr_q,
if (gspca_dev->sd_desc->dq_callback) {
mutex_lock(&gspca_dev->usb_lock);
- gspca_dev->sd_desc->dq_callback(gspca_dev);
+ if (gspca_dev->present)
+ gspca_dev->sd_desc->dq_callback(gspca_dev);
mutex_unlock(&gspca_dev->usb_lock);
}
return j;
int i, ret;
PDEBUG(D_FRAM, "dqbuf");
- if (v4l2_buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return -EINVAL;
if (v4l2_buf->memory != gspca_dev->memory)
return -EINVAL;
+ if (!gspca_dev->present)
+ return -ENODEV;
+
/* if not streaming, be sure the application will not loop forever */
if (!(file->f_flags & O_NONBLOCK)
&& !gspca_dev->streaming && gspca_dev->users == 1)
int i, index, ret;
PDEBUG(D_FRAM, "qbuf %d", v4l2_buf->index);
- if (v4l2_buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return -EINVAL;
if (mutex_lock_interruptible(&gspca_dev->queue_lock))
return -ERESTARTSYS;
PDEBUG(D_FRAM, "poll");
poll_wait(file, &gspca_dev->wq, wait);
- if (!gspca_dev->present)
- return POLLERR;
/* if reqbufs is not done, the user would use read() */
if (gspca_dev->nframes == 0) {
if (mutex_lock_interruptible(&gspca_dev->queue_lock) != 0)
return POLLERR;
- if (!gspca_dev->present) {
- ret = POLLERR;
- goto out;
- }
/* check the next incoming buffer */
i = gspca_dev->fr_o;
ret = POLLIN | POLLRDNORM; /* something to read */
else
ret = 0;
-out:
mutex_unlock(&gspca_dev->queue_lock);
+ if (!gspca_dev->present)
+ return POLLHUP;
return ret;
}
return ret;
}
-static struct file_operations dev_fops = {
+static struct v4l2_file_operations dev_fops = {
.owner = THIS_MODULE,
.open = dev_open,
.release = dev_close,
.read = dev_read,
.mmap = dev_mmap,
- .ioctl = video_ioctl2,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = v4l_compat_ioctl32,
-#endif
- .llseek = no_llseek,
+ .unlocked_ioctl = video_ioctl2,
.poll = dev_poll,
};
.vidioc_queryctrl = vidioc_queryctrl,
.vidioc_g_ctrl = vidioc_g_ctrl,
.vidioc_s_ctrl = vidioc_s_ctrl,
+ .vidioc_g_audio = vidioc_g_audio,
+ .vidioc_s_audio = vidioc_s_audio,
+ .vidioc_enumaudio = vidioc_enumaudio,
.vidioc_querymenu = vidioc_querymenu,
.vidioc_enum_input = vidioc_enum_input,
.vidioc_g_input = vidioc_g_input,
.vidioc_s_jpegcomp = vidioc_s_jpegcomp,
.vidioc_g_parm = vidioc_g_parm,
.vidioc_s_parm = vidioc_s_parm,
- .vidioc_s_std = vidioc_s_std,
+ .vidioc_enum_framesizes = vidioc_enum_framesizes,
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+ .vidioc_g_register = vidioc_g_register,
+ .vidioc_s_register = vidioc_s_register,
+#endif
+ .vidioc_g_chip_ident = vidioc_g_chip_ident,
#ifdef CONFIG_VIDEO_V4L1_COMPAT
.vidiocgmbuf = vidiocgmbuf,
#endif
.name = "gspca main driver",
.fops = &dev_fops,
.ioctl_ops = &dev_ioctl_ops,
- .release = video_device_release,
+ .release = gspca_release,
.minor = -1,
};
err("couldn't kzalloc gspca struct");
return -ENOMEM;
}
- kref_init(&gspca_dev->kref);
gspca_dev->usb_buf = kmalloc(USB_BUF_SZ, GFP_KERNEL);
if (!gspca_dev->usb_buf) {
err("out of memory");
gspca_dev->nbalt = intf->num_altsetting;
gspca_dev->sd_desc = sd_desc;
gspca_dev->nbufread = 2;
+ gspca_dev->empty_packet = -1; /* don't check the empty packets */
/* configure the subdriver and initialize the USB device */
- ret = gspca_dev->sd_desc->config(gspca_dev, id);
+ ret = sd_desc->config(gspca_dev, id);
if (ret < 0)
goto out;
- ret = gspca_dev->sd_desc->init(gspca_dev);
+ ret = sd_desc->init(gspca_dev);
if (ret < 0)
goto out;
ret = gspca_set_alt0(gspca_dev);
init_waitqueue_head(&gspca_dev->wq);
/* init video stuff */
- gspca_dev->vdev = video_device_alloc();
- memcpy(gspca_dev->vdev, &gspca_template, sizeof gspca_template);
- gspca_dev->vdev->parent = &dev->dev;
+ memcpy(&gspca_dev->vdev, &gspca_template, sizeof gspca_template);
+ gspca_dev->vdev.parent = &intf->dev;
gspca_dev->module = module;
gspca_dev->present = 1;
- video_set_drvdata(gspca_dev->vdev, gspca_dev);
- ret = video_register_device(gspca_dev->vdev,
+ ret = video_register_device(&gspca_dev->vdev,
VFL_TYPE_GRABBER,
- video_nr);
+ -1);
if (ret < 0) {
err("video_register_device err %d", ret);
- video_device_release(gspca_dev->vdev);
goto out;
}
{
struct gspca_dev *gspca_dev = usb_get_intfdata(intf);
- usb_set_intfdata(intf, NULL);
+ mutex_lock(&gspca_dev->usb_lock);
+ gspca_dev->present = 0;
-/* We don't want people trying to open up the device */
- video_unregister_device(gspca_dev->vdev);
+ if (gspca_dev->streaming) {
+ destroy_urbs(gspca_dev);
+ wake_up_interruptible(&gspca_dev->wq);
+ }
- gspca_dev->present = 0;
- gspca_dev->streaming = 0;
+ /* the device is freed at exit of this function */
+ gspca_dev->dev = NULL;
+ mutex_unlock(&gspca_dev->usb_lock);
+
+ usb_set_intfdata(intf, NULL);
- kref_put(&gspca_dev->kref, gspca_delete);
+ /* release the device */
+ /* (this will call gspca_release() immediatly or on last close) */
+ video_unregister_device(&gspca_dev->vdev);
PDEBUG(D_PROBE, "disconnect complete");
}
desired lumination fast (with the risc of a slight overshoot) */
steps = abs(desired_avg_lum - avg_lum) / deadzone;
- PDEBUG(D_FRAM, "autogain: lum: %d, desired: %d, steps: %d\n",
+ PDEBUG(D_FRAM, "autogain: lum: %d, desired: %d, steps: %d",
avg_lum, desired_avg_lum, steps);
for (i = 0; i < steps; i++) {
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff