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1223 lines
34 KiB
1223 lines
34 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
|
/* Linux driver for Philips webcam |
|
USB and Video4Linux interface part. |
|
(C) 1999-2004 Nemosoft Unv. |
|
(C) 2004-2006 Luc Saillard ([email protected]) |
|
(C) 2011 Hans de Goede <[email protected]> |
|
|
|
NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx |
|
driver and thus may have bugs that are not present in the original version. |
|
Please send bug reports and support requests to <[email protected]>. |
|
The decompression routines have been implemented by reverse-engineering the |
|
Nemosoft binary pwcx module. Caveat emptor. |
|
|
|
|
|
*/ |
|
|
|
/* |
|
This code forms the interface between the USB layers and the Philips |
|
specific stuff. Some adanved stuff of the driver falls under an |
|
NDA, signed between me and Philips B.V., Eindhoven, the Netherlands, and |
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is thus not distributed in source form. The binary pwcx.o module |
|
contains the code that falls under the NDA. |
|
|
|
In case you're wondering: 'pwc' stands for "Philips WebCam", but |
|
I really didn't want to type 'philips_web_cam' every time (I'm lazy as |
|
any Linux kernel hacker, but I don't like uncomprehensible abbreviations |
|
without explanation). |
|
|
|
Oh yes, convention: to disctinguish between all the various pointers to |
|
device-structures, I use these names for the pointer variables: |
|
udev: struct usb_device * |
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vdev: struct video_device (member of pwc_dev) |
|
pdev: struct pwc_devive * |
|
*/ |
|
|
|
/* Contributors: |
|
- Alvarado: adding whitebalance code |
|
- Alistar Moire: QuickCam 3000 Pro device/product ID |
|
- Tony Hoyle: Creative Labs Webcam 5 device/product ID |
|
- Mark Burazin: solving hang in VIDIOCSYNC when camera gets unplugged |
|
- Jk Fang: Sotec Afina Eye ID |
|
- Xavier Roche: QuickCam Pro 4000 ID |
|
- Jens Knudsen: QuickCam Zoom ID |
|
- J. Debert: QuickCam for Notebooks ID |
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- Pham Thanh Nam: webcam snapshot button as an event input device |
|
*/ |
|
|
|
#include <linux/errno.h> |
|
#include <linux/init.h> |
|
#include <linux/mm.h> |
|
#include <linux/module.h> |
|
#include <linux/poll.h> |
|
#include <linux/slab.h> |
|
#ifdef CONFIG_USB_PWC_INPUT_EVDEV |
|
#include <linux/usb/input.h> |
|
#endif |
|
#include <linux/vmalloc.h> |
|
#include <asm/io.h> |
|
#include <linux/kernel.h> /* simple_strtol() */ |
|
|
|
#include "pwc.h" |
|
#include "pwc-kiara.h" |
|
#include "pwc-timon.h" |
|
#include "pwc-dec23.h" |
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#include "pwc-dec1.h" |
|
|
|
#define CREATE_TRACE_POINTS |
|
#include <trace/events/pwc.h> |
|
|
|
/* Function prototypes and driver templates */ |
|
|
|
/* hotplug device table support */ |
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static const struct usb_device_id pwc_device_table [] = { |
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{ USB_DEVICE(0x041E, 0x400C) }, /* Creative Webcam 5 */ |
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{ USB_DEVICE(0x041E, 0x4011) }, /* Creative Webcam Pro Ex */ |
|
|
|
{ USB_DEVICE(0x046D, 0x08B0) }, /* Logitech QuickCam 3000 Pro */ |
|
{ USB_DEVICE(0x046D, 0x08B1) }, /* Logitech QuickCam Notebook Pro */ |
|
{ USB_DEVICE(0x046D, 0x08B2) }, /* Logitech QuickCam 4000 Pro */ |
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{ USB_DEVICE(0x046D, 0x08B3) }, /* Logitech QuickCam Zoom (old model) */ |
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{ USB_DEVICE(0x046D, 0x08B4) }, /* Logitech QuickCam Zoom (new model) */ |
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{ USB_DEVICE(0x046D, 0x08B5) }, /* Logitech QuickCam Orbit/Sphere */ |
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{ USB_DEVICE(0x046D, 0x08B6) }, /* Logitech/Cisco VT Camera */ |
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{ USB_DEVICE(0x046D, 0x08B7) }, /* Logitech ViewPort AV 100 */ |
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{ USB_DEVICE(0x046D, 0x08B8) }, /* Logitech QuickCam */ |
|
|
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{ USB_DEVICE(0x0471, 0x0302) }, /* Philips PCA645VC */ |
|
{ USB_DEVICE(0x0471, 0x0303) }, /* Philips PCA646VC */ |
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{ USB_DEVICE(0x0471, 0x0304) }, /* Askey VC010 type 2 */ |
|
{ USB_DEVICE(0x0471, 0x0307) }, /* Philips PCVC675K (Vesta) */ |
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{ USB_DEVICE(0x0471, 0x0308) }, /* Philips PCVC680K (Vesta Pro) */ |
|
{ USB_DEVICE(0x0471, 0x030C) }, /* Philips PCVC690K (Vesta Pro Scan) */ |
|
{ USB_DEVICE(0x0471, 0x0310) }, /* Philips PCVC730K (ToUCam Fun)/PCVC830 (ToUCam II) */ |
|
{ USB_DEVICE(0x0471, 0x0311) }, /* Philips PCVC740K (ToUCam Pro)/PCVC840 (ToUCam II) */ |
|
{ USB_DEVICE(0x0471, 0x0312) }, /* Philips PCVC750K (ToUCam Pro Scan) */ |
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{ USB_DEVICE(0x0471, 0x0313) }, /* Philips PCVC720K/40 (ToUCam XS) */ |
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{ USB_DEVICE(0x0471, 0x0329) }, /* Philips SPC 900NC webcam */ |
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{ USB_DEVICE(0x0471, 0x032C) }, /* Philips SPC 880NC webcam */ |
|
|
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{ USB_DEVICE(0x04CC, 0x8116) }, /* Sotec Afina Eye */ |
|
|
|
{ USB_DEVICE(0x055D, 0x9000) }, /* Samsung MPC-C10 */ |
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{ USB_DEVICE(0x055D, 0x9001) }, /* Samsung MPC-C30 */ |
|
{ USB_DEVICE(0x055D, 0x9002) }, /* Samsung SNC-35E (Ver3.0) */ |
|
|
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{ USB_DEVICE(0x069A, 0x0001) }, /* Askey VC010 type 1 */ |
|
|
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{ USB_DEVICE(0x06BE, 0x8116) }, /* AME Co. Afina Eye */ |
|
|
|
{ USB_DEVICE(0x0d81, 0x1900) }, /* Visionite VCS-UC300 */ |
|
{ USB_DEVICE(0x0d81, 0x1910) }, /* Visionite VCS-UM100 */ |
|
|
|
{ } |
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}; |
|
MODULE_DEVICE_TABLE(usb, pwc_device_table); |
|
|
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static int usb_pwc_probe(struct usb_interface *intf, const struct usb_device_id *id); |
|
static void usb_pwc_disconnect(struct usb_interface *intf); |
|
static void pwc_isoc_cleanup(struct pwc_device *pdev); |
|
|
|
static struct usb_driver pwc_driver = { |
|
.name = "Philips webcam", /* name */ |
|
.id_table = pwc_device_table, |
|
.probe = usb_pwc_probe, /* probe() */ |
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.disconnect = usb_pwc_disconnect, /* disconnect() */ |
|
}; |
|
|
|
#define MAX_DEV_HINTS 20 |
|
#define MAX_ISOC_ERRORS 20 |
|
|
|
#ifdef CONFIG_USB_PWC_DEBUG |
|
int pwc_trace = PWC_DEBUG_LEVEL; |
|
#endif |
|
static int power_save = -1; |
|
static int leds[2] = { 100, 0 }; |
|
|
|
/***/ |
|
|
|
static const struct v4l2_file_operations pwc_fops = { |
|
.owner = THIS_MODULE, |
|
.open = v4l2_fh_open, |
|
.release = vb2_fop_release, |
|
.read = vb2_fop_read, |
|
.poll = vb2_fop_poll, |
|
.mmap = vb2_fop_mmap, |
|
.unlocked_ioctl = video_ioctl2, |
|
}; |
|
static const struct video_device pwc_template = { |
|
.name = "Philips Webcam", /* Filled in later */ |
|
.release = video_device_release_empty, |
|
.fops = &pwc_fops, |
|
.ioctl_ops = &pwc_ioctl_ops, |
|
}; |
|
|
|
/***************************************************************************/ |
|
/* Private functions */ |
|
|
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static void *pwc_alloc_urb_buffer(struct usb_device *dev, |
|
size_t size, dma_addr_t *dma_handle) |
|
{ |
|
struct device *dmadev = dev->bus->sysdev; |
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void *buffer = kmalloc(size, GFP_KERNEL); |
|
|
|
if (!buffer) |
|
return NULL; |
|
|
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*dma_handle = dma_map_single(dmadev, buffer, size, DMA_FROM_DEVICE); |
|
if (dma_mapping_error(dmadev, *dma_handle)) { |
|
kfree(buffer); |
|
return NULL; |
|
} |
|
|
|
return buffer; |
|
} |
|
|
|
static void pwc_free_urb_buffer(struct usb_device *dev, |
|
size_t size, |
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void *buffer, |
|
dma_addr_t dma_handle) |
|
{ |
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struct device *dmadev = dev->bus->sysdev; |
|
|
|
dma_unmap_single(dmadev, dma_handle, size, DMA_FROM_DEVICE); |
|
kfree(buffer); |
|
} |
|
|
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static struct pwc_frame_buf *pwc_get_next_fill_buf(struct pwc_device *pdev) |
|
{ |
|
unsigned long flags = 0; |
|
struct pwc_frame_buf *buf = NULL; |
|
|
|
spin_lock_irqsave(&pdev->queued_bufs_lock, flags); |
|
if (list_empty(&pdev->queued_bufs)) |
|
goto leave; |
|
|
|
buf = list_entry(pdev->queued_bufs.next, struct pwc_frame_buf, list); |
|
list_del(&buf->list); |
|
leave: |
|
spin_unlock_irqrestore(&pdev->queued_bufs_lock, flags); |
|
return buf; |
|
} |
|
|
|
static void pwc_snapshot_button(struct pwc_device *pdev, int down) |
|
{ |
|
if (down) { |
|
PWC_TRACE("Snapshot button pressed.\n"); |
|
} else { |
|
PWC_TRACE("Snapshot button released.\n"); |
|
} |
|
|
|
#ifdef CONFIG_USB_PWC_INPUT_EVDEV |
|
if (pdev->button_dev) { |
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input_report_key(pdev->button_dev, KEY_CAMERA, down); |
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input_sync(pdev->button_dev); |
|
} |
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#endif |
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} |
|
|
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static void pwc_frame_complete(struct pwc_device *pdev) |
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{ |
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struct pwc_frame_buf *fbuf = pdev->fill_buf; |
|
|
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/* The ToUCam Fun CMOS sensor causes the firmware to send 2 or 3 bogus |
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frames on the USB wire after an exposure change. This conditition is |
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however detected in the cam and a bit is set in the header. |
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*/ |
|
if (pdev->type == 730) { |
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unsigned char *ptr = (unsigned char *)fbuf->data; |
|
|
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if (ptr[1] == 1 && ptr[0] & 0x10) { |
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PWC_TRACE("Hyundai CMOS sensor bug. Dropping frame.\n"); |
|
pdev->drop_frames += 2; |
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} |
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if ((ptr[0] ^ pdev->vmirror) & 0x01) { |
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pwc_snapshot_button(pdev, ptr[0] & 0x01); |
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} |
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if ((ptr[0] ^ pdev->vmirror) & 0x02) { |
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if (ptr[0] & 0x02) |
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PWC_TRACE("Image is mirrored.\n"); |
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else |
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PWC_TRACE("Image is normal.\n"); |
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} |
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pdev->vmirror = ptr[0] & 0x03; |
|
/* Sometimes the trailer of the 730 is still sent as a 4 byte packet |
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after a short frame; this condition is filtered out specifically. A 4 byte |
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frame doesn't make sense anyway. |
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So we get either this sequence: |
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drop_bit set -> 4 byte frame -> short frame -> good frame |
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Or this one: |
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drop_bit set -> short frame -> good frame |
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So we drop either 3 or 2 frames in all! |
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*/ |
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if (fbuf->filled == 4) |
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pdev->drop_frames++; |
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} else if (pdev->type == 740 || pdev->type == 720) { |
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unsigned char *ptr = (unsigned char *)fbuf->data; |
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if ((ptr[0] ^ pdev->vmirror) & 0x01) { |
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pwc_snapshot_button(pdev, ptr[0] & 0x01); |
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} |
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pdev->vmirror = ptr[0] & 0x03; |
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} |
|
|
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/* In case we were instructed to drop the frame, do so silently. */ |
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if (pdev->drop_frames > 0) { |
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pdev->drop_frames--; |
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} else { |
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/* Check for underflow first */ |
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if (fbuf->filled < pdev->frame_total_size) { |
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PWC_DEBUG_FLOW("Frame buffer underflow (%d bytes); discarded.\n", |
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fbuf->filled); |
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} else { |
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fbuf->vb.field = V4L2_FIELD_NONE; |
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fbuf->vb.sequence = pdev->vframe_count; |
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vb2_buffer_done(&fbuf->vb.vb2_buf, VB2_BUF_STATE_DONE); |
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pdev->fill_buf = NULL; |
|
pdev->vsync = 0; |
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} |
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} /* !drop_frames */ |
|
pdev->vframe_count++; |
|
} |
|
|
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/* This gets called for the Isochronous pipe (video). This is done in |
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* interrupt time, so it has to be fast, not crash, and not stall. Neat. |
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*/ |
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static void pwc_isoc_handler(struct urb *urb) |
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{ |
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struct pwc_device *pdev = (struct pwc_device *)urb->context; |
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struct device *dmadev = urb->dev->bus->sysdev; |
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int i, fst, flen; |
|
unsigned char *iso_buf = NULL; |
|
|
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trace_pwc_handler_enter(urb, pdev); |
|
|
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if (urb->status == -ENOENT || urb->status == -ECONNRESET || |
|
urb->status == -ESHUTDOWN) { |
|
PWC_DEBUG_OPEN("URB (%p) unlinked %ssynchronously.\n", |
|
urb, urb->status == -ENOENT ? "" : "a"); |
|
return; |
|
} |
|
|
|
if (pdev->fill_buf == NULL) |
|
pdev->fill_buf = pwc_get_next_fill_buf(pdev); |
|
|
|
if (urb->status != 0) { |
|
const char *errmsg; |
|
|
|
errmsg = "Unknown"; |
|
switch(urb->status) { |
|
case -ENOSR: errmsg = "Buffer error (overrun)"; break; |
|
case -EPIPE: errmsg = "Stalled (device not responding)"; break; |
|
case -EOVERFLOW: errmsg = "Babble (bad cable?)"; break; |
|
case -EPROTO: errmsg = "Bit-stuff error (bad cable?)"; break; |
|
case -EILSEQ: errmsg = "CRC/Timeout (could be anything)"; break; |
|
case -ETIME: errmsg = "Device does not respond"; break; |
|
} |
|
PWC_ERROR("pwc_isoc_handler() called with status %d [%s].\n", |
|
urb->status, errmsg); |
|
/* Give up after a number of contiguous errors */ |
|
if (++pdev->visoc_errors > MAX_ISOC_ERRORS) |
|
{ |
|
PWC_ERROR("Too many ISOC errors, bailing out.\n"); |
|
if (pdev->fill_buf) { |
|
vb2_buffer_done(&pdev->fill_buf->vb.vb2_buf, |
|
VB2_BUF_STATE_ERROR); |
|
pdev->fill_buf = NULL; |
|
} |
|
} |
|
pdev->vsync = 0; /* Drop the current frame */ |
|
goto handler_end; |
|
} |
|
|
|
/* Reset ISOC error counter. We did get here, after all. */ |
|
pdev->visoc_errors = 0; |
|
|
|
dma_sync_single_for_cpu(dmadev, |
|
urb->transfer_dma, |
|
urb->transfer_buffer_length, |
|
DMA_FROM_DEVICE); |
|
|
|
/* vsync: 0 = don't copy data |
|
1 = sync-hunt |
|
2 = synched |
|
*/ |
|
/* Compact data */ |
|
for (i = 0; i < urb->number_of_packets; i++) { |
|
fst = urb->iso_frame_desc[i].status; |
|
flen = urb->iso_frame_desc[i].actual_length; |
|
iso_buf = urb->transfer_buffer + urb->iso_frame_desc[i].offset; |
|
if (fst != 0) { |
|
PWC_ERROR("Iso frame %d has error %d\n", i, fst); |
|
continue; |
|
} |
|
if (flen > 0 && pdev->vsync) { |
|
struct pwc_frame_buf *fbuf = pdev->fill_buf; |
|
|
|
if (pdev->vsync == 1) { |
|
fbuf->vb.vb2_buf.timestamp = ktime_get_ns(); |
|
pdev->vsync = 2; |
|
} |
|
|
|
if (flen + fbuf->filled > pdev->frame_total_size) { |
|
PWC_ERROR("Frame overflow (%d > %d)\n", |
|
flen + fbuf->filled, |
|
pdev->frame_total_size); |
|
pdev->vsync = 0; /* Let's wait for an EOF */ |
|
} else { |
|
memcpy(fbuf->data + fbuf->filled, iso_buf, |
|
flen); |
|
fbuf->filled += flen; |
|
} |
|
} |
|
if (flen < pdev->vlast_packet_size) { |
|
/* Shorter packet... end of frame */ |
|
if (pdev->vsync == 2) |
|
pwc_frame_complete(pdev); |
|
if (pdev->fill_buf == NULL) |
|
pdev->fill_buf = pwc_get_next_fill_buf(pdev); |
|
if (pdev->fill_buf) { |
|
pdev->fill_buf->filled = 0; |
|
pdev->vsync = 1; |
|
} |
|
} |
|
pdev->vlast_packet_size = flen; |
|
} |
|
|
|
dma_sync_single_for_device(dmadev, |
|
urb->transfer_dma, |
|
urb->transfer_buffer_length, |
|
DMA_FROM_DEVICE); |
|
|
|
handler_end: |
|
trace_pwc_handler_exit(urb, pdev); |
|
|
|
i = usb_submit_urb(urb, GFP_ATOMIC); |
|
if (i != 0) |
|
PWC_ERROR("Error (%d) re-submitting urb in pwc_isoc_handler.\n", i); |
|
} |
|
|
|
/* Both v4l2_lock and vb_queue_lock should be locked when calling this */ |
|
static int pwc_isoc_init(struct pwc_device *pdev) |
|
{ |
|
struct usb_device *udev; |
|
struct urb *urb; |
|
int i, j, ret; |
|
struct usb_interface *intf; |
|
struct usb_host_interface *idesc = NULL; |
|
int compression = 0; /* 0..3 = uncompressed..high */ |
|
|
|
pdev->vsync = 0; |
|
pdev->vlast_packet_size = 0; |
|
pdev->fill_buf = NULL; |
|
pdev->vframe_count = 0; |
|
pdev->visoc_errors = 0; |
|
udev = pdev->udev; |
|
|
|
retry: |
|
/* We first try with low compression and then retry with a higher |
|
compression setting if there is not enough bandwidth. */ |
|
ret = pwc_set_video_mode(pdev, pdev->width, pdev->height, pdev->pixfmt, |
|
pdev->vframes, &compression, 1); |
|
|
|
/* Get the current alternate interface, adjust packet size */ |
|
intf = usb_ifnum_to_if(udev, 0); |
|
if (intf) |
|
idesc = usb_altnum_to_altsetting(intf, pdev->valternate); |
|
if (!idesc) |
|
return -EIO; |
|
|
|
/* Search video endpoint */ |
|
pdev->vmax_packet_size = -1; |
|
for (i = 0; i < idesc->desc.bNumEndpoints; i++) { |
|
if ((idesc->endpoint[i].desc.bEndpointAddress & 0xF) == pdev->vendpoint) { |
|
pdev->vmax_packet_size = le16_to_cpu(idesc->endpoint[i].desc.wMaxPacketSize); |
|
break; |
|
} |
|
} |
|
|
|
if (pdev->vmax_packet_size < 0 || pdev->vmax_packet_size > ISO_MAX_FRAME_SIZE) { |
|
PWC_ERROR("Failed to find packet size for video endpoint in current alternate setting.\n"); |
|
return -ENFILE; /* Odd error, that should be noticeable */ |
|
} |
|
|
|
/* Set alternate interface */ |
|
PWC_DEBUG_OPEN("Setting alternate interface %d\n", pdev->valternate); |
|
ret = usb_set_interface(pdev->udev, 0, pdev->valternate); |
|
if (ret == -ENOSPC && compression < 3) { |
|
compression++; |
|
goto retry; |
|
} |
|
if (ret < 0) |
|
return ret; |
|
|
|
/* Allocate and init Isochronuous urbs */ |
|
for (i = 0; i < MAX_ISO_BUFS; i++) { |
|
urb = usb_alloc_urb(ISO_FRAMES_PER_DESC, GFP_KERNEL); |
|
if (urb == NULL) { |
|
pwc_isoc_cleanup(pdev); |
|
return -ENOMEM; |
|
} |
|
pdev->urbs[i] = urb; |
|
PWC_DEBUG_MEMORY("Allocated URB at 0x%p\n", urb); |
|
|
|
urb->interval = 1; // devik |
|
urb->dev = udev; |
|
urb->pipe = usb_rcvisocpipe(udev, pdev->vendpoint); |
|
urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; |
|
urb->transfer_buffer_length = ISO_BUFFER_SIZE; |
|
urb->transfer_buffer = pwc_alloc_urb_buffer(udev, |
|
urb->transfer_buffer_length, |
|
&urb->transfer_dma); |
|
if (urb->transfer_buffer == NULL) { |
|
PWC_ERROR("Failed to allocate urb buffer %d\n", i); |
|
pwc_isoc_cleanup(pdev); |
|
return -ENOMEM; |
|
} |
|
urb->complete = pwc_isoc_handler; |
|
urb->context = pdev; |
|
urb->start_frame = 0; |
|
urb->number_of_packets = ISO_FRAMES_PER_DESC; |
|
for (j = 0; j < ISO_FRAMES_PER_DESC; j++) { |
|
urb->iso_frame_desc[j].offset = j * ISO_MAX_FRAME_SIZE; |
|
urb->iso_frame_desc[j].length = pdev->vmax_packet_size; |
|
} |
|
} |
|
|
|
/* link */ |
|
for (i = 0; i < MAX_ISO_BUFS; i++) { |
|
ret = usb_submit_urb(pdev->urbs[i], GFP_KERNEL); |
|
if (ret == -ENOSPC && compression < 3) { |
|
compression++; |
|
pwc_isoc_cleanup(pdev); |
|
goto retry; |
|
} |
|
if (ret) { |
|
PWC_ERROR("isoc_init() submit_urb %d failed with error %d\n", i, ret); |
|
pwc_isoc_cleanup(pdev); |
|
return ret; |
|
} |
|
PWC_DEBUG_MEMORY("URB 0x%p submitted.\n", pdev->urbs[i]); |
|
} |
|
|
|
/* All is done... */ |
|
PWC_DEBUG_OPEN("<< pwc_isoc_init()\n"); |
|
return 0; |
|
} |
|
|
|
static void pwc_iso_stop(struct pwc_device *pdev) |
|
{ |
|
int i; |
|
|
|
/* Unlinking ISOC buffers one by one */ |
|
for (i = 0; i < MAX_ISO_BUFS; i++) { |
|
if (pdev->urbs[i]) { |
|
PWC_DEBUG_MEMORY("Unlinking URB %p\n", pdev->urbs[i]); |
|
usb_kill_urb(pdev->urbs[i]); |
|
} |
|
} |
|
} |
|
|
|
static void pwc_iso_free(struct pwc_device *pdev) |
|
{ |
|
int i; |
|
|
|
/* Freeing ISOC buffers one by one */ |
|
for (i = 0; i < MAX_ISO_BUFS; i++) { |
|
struct urb *urb = pdev->urbs[i]; |
|
|
|
if (urb) { |
|
PWC_DEBUG_MEMORY("Freeing URB\n"); |
|
if (urb->transfer_buffer) |
|
pwc_free_urb_buffer(urb->dev, |
|
urb->transfer_buffer_length, |
|
urb->transfer_buffer, |
|
urb->transfer_dma); |
|
usb_free_urb(urb); |
|
pdev->urbs[i] = NULL; |
|
} |
|
} |
|
} |
|
|
|
/* Both v4l2_lock and vb_queue_lock should be locked when calling this */ |
|
static void pwc_isoc_cleanup(struct pwc_device *pdev) |
|
{ |
|
PWC_DEBUG_OPEN(">> pwc_isoc_cleanup()\n"); |
|
|
|
pwc_iso_stop(pdev); |
|
pwc_iso_free(pdev); |
|
usb_set_interface(pdev->udev, 0, 0); |
|
|
|
PWC_DEBUG_OPEN("<< pwc_isoc_cleanup()\n"); |
|
} |
|
|
|
/* Must be called with vb_queue_lock hold */ |
|
static void pwc_cleanup_queued_bufs(struct pwc_device *pdev, |
|
enum vb2_buffer_state state) |
|
{ |
|
unsigned long flags = 0; |
|
|
|
spin_lock_irqsave(&pdev->queued_bufs_lock, flags); |
|
while (!list_empty(&pdev->queued_bufs)) { |
|
struct pwc_frame_buf *buf; |
|
|
|
buf = list_entry(pdev->queued_bufs.next, struct pwc_frame_buf, |
|
list); |
|
list_del(&buf->list); |
|
vb2_buffer_done(&buf->vb.vb2_buf, state); |
|
} |
|
spin_unlock_irqrestore(&pdev->queued_bufs_lock, flags); |
|
} |
|
|
|
#ifdef CONFIG_USB_PWC_DEBUG |
|
static const char *pwc_sensor_type_to_string(unsigned int sensor_type) |
|
{ |
|
switch(sensor_type) { |
|
case 0x00: |
|
return "Hyundai CMOS sensor"; |
|
case 0x20: |
|
return "Sony CCD sensor + TDA8787"; |
|
case 0x2E: |
|
return "Sony CCD sensor + Exas 98L59"; |
|
case 0x2F: |
|
return "Sony CCD sensor + ADI 9804"; |
|
case 0x30: |
|
return "Sharp CCD sensor + TDA8787"; |
|
case 0x3E: |
|
return "Sharp CCD sensor + Exas 98L59"; |
|
case 0x3F: |
|
return "Sharp CCD sensor + ADI 9804"; |
|
case 0x40: |
|
return "UPA 1021 sensor"; |
|
case 0x100: |
|
return "VGA sensor"; |
|
case 0x101: |
|
return "PAL MR sensor"; |
|
default: |
|
return "unknown type of sensor"; |
|
} |
|
} |
|
#endif |
|
|
|
/***************************************************************************/ |
|
/* Video4Linux functions */ |
|
|
|
static void pwc_video_release(struct v4l2_device *v) |
|
{ |
|
struct pwc_device *pdev = container_of(v, struct pwc_device, v4l2_dev); |
|
|
|
v4l2_ctrl_handler_free(&pdev->ctrl_handler); |
|
v4l2_device_unregister(&pdev->v4l2_dev); |
|
kfree(pdev->ctrl_buf); |
|
kfree(pdev); |
|
} |
|
|
|
/***************************************************************************/ |
|
/* Videobuf2 operations */ |
|
|
|
static int queue_setup(struct vb2_queue *vq, |
|
unsigned int *nbuffers, unsigned int *nplanes, |
|
unsigned int sizes[], struct device *alloc_devs[]) |
|
{ |
|
struct pwc_device *pdev = vb2_get_drv_priv(vq); |
|
int size; |
|
|
|
if (*nbuffers < MIN_FRAMES) |
|
*nbuffers = MIN_FRAMES; |
|
else if (*nbuffers > MAX_FRAMES) |
|
*nbuffers = MAX_FRAMES; |
|
|
|
*nplanes = 1; |
|
|
|
size = pwc_get_size(pdev, MAX_WIDTH, MAX_HEIGHT); |
|
sizes[0] = PAGE_ALIGN(pwc_image_sizes[size][0] * |
|
pwc_image_sizes[size][1] * 3 / 2); |
|
|
|
return 0; |
|
} |
|
|
|
static int buffer_init(struct vb2_buffer *vb) |
|
{ |
|
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
|
struct pwc_frame_buf *buf = |
|
container_of(vbuf, struct pwc_frame_buf, vb); |
|
|
|
/* need vmalloc since frame buffer > 128K */ |
|
buf->data = vzalloc(PWC_FRAME_SIZE); |
|
if (buf->data == NULL) |
|
return -ENOMEM; |
|
|
|
return 0; |
|
} |
|
|
|
static int buffer_prepare(struct vb2_buffer *vb) |
|
{ |
|
struct pwc_device *pdev = vb2_get_drv_priv(vb->vb2_queue); |
|
|
|
/* Don't allow queueing new buffers after device disconnection */ |
|
if (!pdev->udev) |
|
return -ENODEV; |
|
|
|
return 0; |
|
} |
|
|
|
static void buffer_finish(struct vb2_buffer *vb) |
|
{ |
|
struct pwc_device *pdev = vb2_get_drv_priv(vb->vb2_queue); |
|
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
|
struct pwc_frame_buf *buf = |
|
container_of(vbuf, struct pwc_frame_buf, vb); |
|
|
|
if (vb->state == VB2_BUF_STATE_DONE) { |
|
/* |
|
* Application has called dqbuf and is getting back a buffer |
|
* we've filled, take the pwc data we've stored in buf->data |
|
* and decompress it into a usable format, storing the result |
|
* in the vb2_buffer. |
|
*/ |
|
pwc_decompress(pdev, buf); |
|
} |
|
} |
|
|
|
static void buffer_cleanup(struct vb2_buffer *vb) |
|
{ |
|
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
|
struct pwc_frame_buf *buf = |
|
container_of(vbuf, struct pwc_frame_buf, vb); |
|
|
|
vfree(buf->data); |
|
} |
|
|
|
static void buffer_queue(struct vb2_buffer *vb) |
|
{ |
|
struct pwc_device *pdev = vb2_get_drv_priv(vb->vb2_queue); |
|
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
|
struct pwc_frame_buf *buf = |
|
container_of(vbuf, struct pwc_frame_buf, vb); |
|
unsigned long flags = 0; |
|
|
|
/* Check the device has not disconnected between prep and queuing */ |
|
if (!pdev->udev) { |
|
vb2_buffer_done(vb, VB2_BUF_STATE_ERROR); |
|
return; |
|
} |
|
|
|
spin_lock_irqsave(&pdev->queued_bufs_lock, flags); |
|
list_add_tail(&buf->list, &pdev->queued_bufs); |
|
spin_unlock_irqrestore(&pdev->queued_bufs_lock, flags); |
|
} |
|
|
|
static int start_streaming(struct vb2_queue *vq, unsigned int count) |
|
{ |
|
struct pwc_device *pdev = vb2_get_drv_priv(vq); |
|
int r; |
|
|
|
if (!pdev->udev) |
|
return -ENODEV; |
|
|
|
if (mutex_lock_interruptible(&pdev->v4l2_lock)) |
|
return -ERESTARTSYS; |
|
/* Turn on camera and set LEDS on */ |
|
pwc_camera_power(pdev, 1); |
|
pwc_set_leds(pdev, leds[0], leds[1]); |
|
|
|
r = pwc_isoc_init(pdev); |
|
if (r) { |
|
/* If we failed turn camera and LEDS back off */ |
|
pwc_set_leds(pdev, 0, 0); |
|
pwc_camera_power(pdev, 0); |
|
/* And cleanup any queued bufs!! */ |
|
pwc_cleanup_queued_bufs(pdev, VB2_BUF_STATE_QUEUED); |
|
} |
|
mutex_unlock(&pdev->v4l2_lock); |
|
|
|
return r; |
|
} |
|
|
|
static void stop_streaming(struct vb2_queue *vq) |
|
{ |
|
struct pwc_device *pdev = vb2_get_drv_priv(vq); |
|
|
|
mutex_lock(&pdev->v4l2_lock); |
|
if (pdev->udev) { |
|
pwc_set_leds(pdev, 0, 0); |
|
pwc_camera_power(pdev, 0); |
|
pwc_isoc_cleanup(pdev); |
|
} |
|
|
|
pwc_cleanup_queued_bufs(pdev, VB2_BUF_STATE_ERROR); |
|
if (pdev->fill_buf) |
|
vb2_buffer_done(&pdev->fill_buf->vb.vb2_buf, |
|
VB2_BUF_STATE_ERROR); |
|
mutex_unlock(&pdev->v4l2_lock); |
|
} |
|
|
|
static const struct vb2_ops pwc_vb_queue_ops = { |
|
.queue_setup = queue_setup, |
|
.buf_init = buffer_init, |
|
.buf_prepare = buffer_prepare, |
|
.buf_finish = buffer_finish, |
|
.buf_cleanup = buffer_cleanup, |
|
.buf_queue = buffer_queue, |
|
.start_streaming = start_streaming, |
|
.stop_streaming = stop_streaming, |
|
.wait_prepare = vb2_ops_wait_prepare, |
|
.wait_finish = vb2_ops_wait_finish, |
|
}; |
|
|
|
/***************************************************************************/ |
|
/* USB functions */ |
|
|
|
/* This function gets called when a new device is plugged in or the usb core |
|
* is loaded. |
|
*/ |
|
|
|
static int usb_pwc_probe(struct usb_interface *intf, const struct usb_device_id *id) |
|
{ |
|
struct usb_device *udev = interface_to_usbdev(intf); |
|
struct pwc_device *pdev = NULL; |
|
int vendor_id, product_id, type_id; |
|
int rc; |
|
int features = 0; |
|
int compression = 0; |
|
int my_power_save = power_save; |
|
char serial_number[30], *name; |
|
|
|
vendor_id = le16_to_cpu(udev->descriptor.idVendor); |
|
product_id = le16_to_cpu(udev->descriptor.idProduct); |
|
|
|
/* Check if we can handle this device */ |
|
PWC_DEBUG_PROBE("probe() called [%04X %04X], if %d\n", |
|
vendor_id, product_id, |
|
intf->altsetting->desc.bInterfaceNumber); |
|
|
|
/* the interfaces are probed one by one. We are only interested in the |
|
video interface (0) now. |
|
Interface 1 is the Audio Control, and interface 2 Audio itself. |
|
*/ |
|
if (intf->altsetting->desc.bInterfaceNumber > 0) |
|
return -ENODEV; |
|
|
|
if (vendor_id == 0x0471) { |
|
switch (product_id) { |
|
case 0x0302: |
|
PWC_INFO("Philips PCA645VC USB webcam detected.\n"); |
|
name = "Philips 645 webcam"; |
|
type_id = 645; |
|
break; |
|
case 0x0303: |
|
PWC_INFO("Philips PCA646VC USB webcam detected.\n"); |
|
name = "Philips 646 webcam"; |
|
type_id = 646; |
|
break; |
|
case 0x0304: |
|
PWC_INFO("Askey VC010 type 2 USB webcam detected.\n"); |
|
name = "Askey VC010 webcam"; |
|
type_id = 646; |
|
break; |
|
case 0x0307: |
|
PWC_INFO("Philips PCVC675K (Vesta) USB webcam detected.\n"); |
|
name = "Philips 675 webcam"; |
|
type_id = 675; |
|
break; |
|
case 0x0308: |
|
PWC_INFO("Philips PCVC680K (Vesta Pro) USB webcam detected.\n"); |
|
name = "Philips 680 webcam"; |
|
type_id = 680; |
|
break; |
|
case 0x030C: |
|
PWC_INFO("Philips PCVC690K (Vesta Pro Scan) USB webcam detected.\n"); |
|
name = "Philips 690 webcam"; |
|
type_id = 690; |
|
break; |
|
case 0x0310: |
|
PWC_INFO("Philips PCVC730K (ToUCam Fun)/PCVC830 (ToUCam II) USB webcam detected.\n"); |
|
name = "Philips 730 webcam"; |
|
type_id = 730; |
|
break; |
|
case 0x0311: |
|
PWC_INFO("Philips PCVC740K (ToUCam Pro)/PCVC840 (ToUCam II) USB webcam detected.\n"); |
|
name = "Philips 740 webcam"; |
|
type_id = 740; |
|
break; |
|
case 0x0312: |
|
PWC_INFO("Philips PCVC750K (ToUCam Pro Scan) USB webcam detected.\n"); |
|
name = "Philips 750 webcam"; |
|
type_id = 750; |
|
break; |
|
case 0x0313: |
|
PWC_INFO("Philips PCVC720K/40 (ToUCam XS) USB webcam detected.\n"); |
|
name = "Philips 720K/40 webcam"; |
|
type_id = 720; |
|
break; |
|
case 0x0329: |
|
PWC_INFO("Philips SPC 900NC USB webcam detected.\n"); |
|
name = "Philips SPC 900NC webcam"; |
|
type_id = 740; |
|
break; |
|
case 0x032C: |
|
PWC_INFO("Philips SPC 880NC USB webcam detected.\n"); |
|
name = "Philips SPC 880NC webcam"; |
|
type_id = 740; |
|
break; |
|
default: |
|
return -ENODEV; |
|
} |
|
} |
|
else if (vendor_id == 0x069A) { |
|
switch(product_id) { |
|
case 0x0001: |
|
PWC_INFO("Askey VC010 type 1 USB webcam detected.\n"); |
|
name = "Askey VC010 webcam"; |
|
type_id = 645; |
|
break; |
|
default: |
|
return -ENODEV; |
|
} |
|
} |
|
else if (vendor_id == 0x046d) { |
|
switch(product_id) { |
|
case 0x08b0: |
|
PWC_INFO("Logitech QuickCam Pro 3000 USB webcam detected.\n"); |
|
name = "Logitech QuickCam Pro 3000"; |
|
type_id = 740; /* CCD sensor */ |
|
break; |
|
case 0x08b1: |
|
PWC_INFO("Logitech QuickCam Notebook Pro USB webcam detected.\n"); |
|
name = "Logitech QuickCam Notebook Pro"; |
|
type_id = 740; /* CCD sensor */ |
|
break; |
|
case 0x08b2: |
|
PWC_INFO("Logitech QuickCam 4000 Pro USB webcam detected.\n"); |
|
name = "Logitech QuickCam Pro 4000"; |
|
type_id = 740; /* CCD sensor */ |
|
if (my_power_save == -1) |
|
my_power_save = 1; |
|
break; |
|
case 0x08b3: |
|
PWC_INFO("Logitech QuickCam Zoom USB webcam detected.\n"); |
|
name = "Logitech QuickCam Zoom"; |
|
type_id = 740; /* CCD sensor */ |
|
break; |
|
case 0x08B4: |
|
PWC_INFO("Logitech QuickCam Zoom (new model) USB webcam detected.\n"); |
|
name = "Logitech QuickCam Zoom"; |
|
type_id = 740; /* CCD sensor */ |
|
if (my_power_save == -1) |
|
my_power_save = 1; |
|
break; |
|
case 0x08b5: |
|
PWC_INFO("Logitech QuickCam Orbit/Sphere USB webcam detected.\n"); |
|
name = "Logitech QuickCam Orbit"; |
|
type_id = 740; /* CCD sensor */ |
|
if (my_power_save == -1) |
|
my_power_save = 1; |
|
features |= FEATURE_MOTOR_PANTILT; |
|
break; |
|
case 0x08b6: |
|
PWC_INFO("Logitech/Cisco VT Camera webcam detected.\n"); |
|
name = "Cisco VT Camera"; |
|
type_id = 740; /* CCD sensor */ |
|
break; |
|
case 0x08b7: |
|
PWC_INFO("Logitech ViewPort AV 100 webcam detected.\n"); |
|
name = "Logitech ViewPort AV 100"; |
|
type_id = 740; /* CCD sensor */ |
|
break; |
|
case 0x08b8: /* Where this released? */ |
|
PWC_INFO("Logitech QuickCam detected (reserved ID).\n"); |
|
name = "Logitech QuickCam (res.)"; |
|
type_id = 730; /* Assuming CMOS */ |
|
break; |
|
default: |
|
return -ENODEV; |
|
} |
|
} |
|
else if (vendor_id == 0x055d) { |
|
/* I don't know the difference between the C10 and the C30; |
|
I suppose the difference is the sensor, but both cameras |
|
work equally well with a type_id of 675 |
|
*/ |
|
switch(product_id) { |
|
case 0x9000: |
|
PWC_INFO("Samsung MPC-C10 USB webcam detected.\n"); |
|
name = "Samsung MPC-C10"; |
|
type_id = 675; |
|
break; |
|
case 0x9001: |
|
PWC_INFO("Samsung MPC-C30 USB webcam detected.\n"); |
|
name = "Samsung MPC-C30"; |
|
type_id = 675; |
|
break; |
|
case 0x9002: |
|
PWC_INFO("Samsung SNC-35E (v3.0) USB webcam detected.\n"); |
|
name = "Samsung MPC-C30"; |
|
type_id = 740; |
|
break; |
|
default: |
|
return -ENODEV; |
|
} |
|
} |
|
else if (vendor_id == 0x041e) { |
|
switch(product_id) { |
|
case 0x400c: |
|
PWC_INFO("Creative Labs Webcam 5 detected.\n"); |
|
name = "Creative Labs Webcam 5"; |
|
type_id = 730; |
|
if (my_power_save == -1) |
|
my_power_save = 1; |
|
break; |
|
case 0x4011: |
|
PWC_INFO("Creative Labs Webcam Pro Ex detected.\n"); |
|
name = "Creative Labs Webcam Pro Ex"; |
|
type_id = 740; |
|
break; |
|
default: |
|
return -ENODEV; |
|
} |
|
} |
|
else if (vendor_id == 0x04cc) { |
|
switch(product_id) { |
|
case 0x8116: |
|
PWC_INFO("Sotec Afina Eye USB webcam detected.\n"); |
|
name = "Sotec Afina Eye"; |
|
type_id = 730; |
|
break; |
|
default: |
|
return -ENODEV; |
|
} |
|
} |
|
else if (vendor_id == 0x06be) { |
|
switch(product_id) { |
|
case 0x8116: |
|
/* This is essentially the same cam as the Sotec Afina Eye */ |
|
PWC_INFO("AME Co. Afina Eye USB webcam detected.\n"); |
|
name = "AME Co. Afina Eye"; |
|
type_id = 750; |
|
break; |
|
default: |
|
return -ENODEV; |
|
} |
|
|
|
} |
|
else if (vendor_id == 0x0d81) { |
|
switch(product_id) { |
|
case 0x1900: |
|
PWC_INFO("Visionite VCS-UC300 USB webcam detected.\n"); |
|
name = "Visionite VCS-UC300"; |
|
type_id = 740; /* CCD sensor */ |
|
break; |
|
case 0x1910: |
|
PWC_INFO("Visionite VCS-UM100 USB webcam detected.\n"); |
|
name = "Visionite VCS-UM100"; |
|
type_id = 730; /* CMOS sensor */ |
|
break; |
|
default: |
|
return -ENODEV; |
|
} |
|
} |
|
else |
|
return -ENODEV; /* Not any of the know types; but the list keeps growing. */ |
|
|
|
if (my_power_save == -1) |
|
my_power_save = 0; |
|
|
|
memset(serial_number, 0, 30); |
|
usb_string(udev, udev->descriptor.iSerialNumber, serial_number, 29); |
|
PWC_DEBUG_PROBE("Device serial number is %s\n", serial_number); |
|
|
|
if (udev->descriptor.bNumConfigurations > 1) |
|
PWC_WARNING("Warning: more than 1 configuration available.\n"); |
|
|
|
/* Allocate structure, initialize pointers, mutexes, etc. and link it to the usb_device */ |
|
pdev = kzalloc(sizeof(struct pwc_device), GFP_KERNEL); |
|
if (pdev == NULL) { |
|
PWC_ERROR("Oops, could not allocate memory for pwc_device.\n"); |
|
return -ENOMEM; |
|
} |
|
pdev->type = type_id; |
|
pdev->features = features; |
|
pwc_construct(pdev); /* set min/max sizes correct */ |
|
|
|
mutex_init(&pdev->v4l2_lock); |
|
mutex_init(&pdev->vb_queue_lock); |
|
spin_lock_init(&pdev->queued_bufs_lock); |
|
INIT_LIST_HEAD(&pdev->queued_bufs); |
|
|
|
pdev->udev = udev; |
|
pdev->power_save = my_power_save; |
|
|
|
/* Init videobuf2 queue structure */ |
|
pdev->vb_queue.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
|
pdev->vb_queue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ; |
|
pdev->vb_queue.drv_priv = pdev; |
|
pdev->vb_queue.buf_struct_size = sizeof(struct pwc_frame_buf); |
|
pdev->vb_queue.ops = &pwc_vb_queue_ops; |
|
pdev->vb_queue.mem_ops = &vb2_vmalloc_memops; |
|
pdev->vb_queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; |
|
rc = vb2_queue_init(&pdev->vb_queue); |
|
if (rc < 0) { |
|
PWC_ERROR("Oops, could not initialize vb2 queue.\n"); |
|
goto err_free_mem; |
|
} |
|
|
|
/* Init video_device structure */ |
|
pdev->vdev = pwc_template; |
|
strscpy(pdev->vdev.name, name, sizeof(pdev->vdev.name)); |
|
pdev->vdev.queue = &pdev->vb_queue; |
|
pdev->vdev.queue->lock = &pdev->vb_queue_lock; |
|
video_set_drvdata(&pdev->vdev, pdev); |
|
|
|
pdev->release = le16_to_cpu(udev->descriptor.bcdDevice); |
|
PWC_DEBUG_PROBE("Release: %04x\n", pdev->release); |
|
|
|
/* Allocate USB command buffers */ |
|
pdev->ctrl_buf = kmalloc(sizeof(pdev->cmd_buf), GFP_KERNEL); |
|
if (!pdev->ctrl_buf) { |
|
PWC_ERROR("Oops, could not allocate memory for pwc_device.\n"); |
|
rc = -ENOMEM; |
|
goto err_free_mem; |
|
} |
|
|
|
#ifdef CONFIG_USB_PWC_DEBUG |
|
/* Query sensor type */ |
|
if (pwc_get_cmos_sensor(pdev, &rc) >= 0) { |
|
PWC_DEBUG_OPEN("This %s camera is equipped with a %s (%d).\n", |
|
pdev->vdev.name, |
|
pwc_sensor_type_to_string(rc), rc); |
|
} |
|
#endif |
|
|
|
/* Set the leds off */ |
|
pwc_set_leds(pdev, 0, 0); |
|
|
|
/* Setup initial videomode */ |
|
rc = pwc_set_video_mode(pdev, MAX_WIDTH, MAX_HEIGHT, |
|
V4L2_PIX_FMT_YUV420, 30, &compression, 1); |
|
if (rc) |
|
goto err_free_mem; |
|
|
|
/* Register controls (and read default values from camera */ |
|
rc = pwc_init_controls(pdev); |
|
if (rc) { |
|
PWC_ERROR("Failed to register v4l2 controls (%d).\n", rc); |
|
goto err_free_mem; |
|
} |
|
|
|
/* And powerdown the camera until streaming starts */ |
|
pwc_camera_power(pdev, 0); |
|
|
|
/* Register the v4l2_device structure */ |
|
pdev->v4l2_dev.release = pwc_video_release; |
|
rc = v4l2_device_register(&intf->dev, &pdev->v4l2_dev); |
|
if (rc) { |
|
PWC_ERROR("Failed to register v4l2-device (%d).\n", rc); |
|
goto err_free_controls; |
|
} |
|
|
|
pdev->v4l2_dev.ctrl_handler = &pdev->ctrl_handler; |
|
pdev->vdev.v4l2_dev = &pdev->v4l2_dev; |
|
pdev->vdev.lock = &pdev->v4l2_lock; |
|
pdev->vdev.device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING | |
|
V4L2_CAP_READWRITE; |
|
|
|
rc = video_register_device(&pdev->vdev, VFL_TYPE_VIDEO, -1); |
|
if (rc < 0) { |
|
PWC_ERROR("Failed to register as video device (%d).\n", rc); |
|
goto err_unregister_v4l2_dev; |
|
} |
|
PWC_INFO("Registered as %s.\n", video_device_node_name(&pdev->vdev)); |
|
|
|
#ifdef CONFIG_USB_PWC_INPUT_EVDEV |
|
/* register webcam snapshot button input device */ |
|
pdev->button_dev = input_allocate_device(); |
|
if (!pdev->button_dev) { |
|
rc = -ENOMEM; |
|
goto err_video_unreg; |
|
} |
|
|
|
usb_make_path(udev, pdev->button_phys, sizeof(pdev->button_phys)); |
|
strlcat(pdev->button_phys, "/input0", sizeof(pdev->button_phys)); |
|
|
|
pdev->button_dev->name = "PWC snapshot button"; |
|
pdev->button_dev->phys = pdev->button_phys; |
|
usb_to_input_id(pdev->udev, &pdev->button_dev->id); |
|
pdev->button_dev->dev.parent = &pdev->udev->dev; |
|
pdev->button_dev->evbit[0] = BIT_MASK(EV_KEY); |
|
pdev->button_dev->keybit[BIT_WORD(KEY_CAMERA)] = BIT_MASK(KEY_CAMERA); |
|
|
|
rc = input_register_device(pdev->button_dev); |
|
if (rc) { |
|
input_free_device(pdev->button_dev); |
|
pdev->button_dev = NULL; |
|
goto err_video_unreg; |
|
} |
|
#endif |
|
|
|
return 0; |
|
|
|
#ifdef CONFIG_USB_PWC_INPUT_EVDEV |
|
err_video_unreg: |
|
video_unregister_device(&pdev->vdev); |
|
#endif |
|
err_unregister_v4l2_dev: |
|
v4l2_device_unregister(&pdev->v4l2_dev); |
|
err_free_controls: |
|
v4l2_ctrl_handler_free(&pdev->ctrl_handler); |
|
err_free_mem: |
|
kfree(pdev->ctrl_buf); |
|
kfree(pdev); |
|
return rc; |
|
} |
|
|
|
/* The user yanked out the cable... */ |
|
static void usb_pwc_disconnect(struct usb_interface *intf) |
|
{ |
|
struct v4l2_device *v = usb_get_intfdata(intf); |
|
struct pwc_device *pdev = container_of(v, struct pwc_device, v4l2_dev); |
|
|
|
mutex_lock(&pdev->vb_queue_lock); |
|
mutex_lock(&pdev->v4l2_lock); |
|
/* No need to keep the urbs around after disconnection */ |
|
if (pdev->vb_queue.streaming) |
|
pwc_isoc_cleanup(pdev); |
|
pdev->udev = NULL; |
|
|
|
v4l2_device_disconnect(&pdev->v4l2_dev); |
|
video_unregister_device(&pdev->vdev); |
|
mutex_unlock(&pdev->v4l2_lock); |
|
mutex_unlock(&pdev->vb_queue_lock); |
|
|
|
#ifdef CONFIG_USB_PWC_INPUT_EVDEV |
|
if (pdev->button_dev) |
|
input_unregister_device(pdev->button_dev); |
|
#endif |
|
|
|
v4l2_device_put(&pdev->v4l2_dev); |
|
} |
|
|
|
|
|
/* |
|
* Initialization code & module stuff |
|
*/ |
|
|
|
static unsigned int leds_nargs; |
|
|
|
#ifdef CONFIG_USB_PWC_DEBUG |
|
module_param_named(trace, pwc_trace, int, 0644); |
|
#endif |
|
module_param(power_save, int, 0644); |
|
module_param_array(leds, int, &leds_nargs, 0444); |
|
|
|
#ifdef CONFIG_USB_PWC_DEBUG |
|
MODULE_PARM_DESC(trace, "For debugging purposes"); |
|
#endif |
|
MODULE_PARM_DESC(power_save, "Turn power saving for new cameras on or off"); |
|
MODULE_PARM_DESC(leds, "LED on,off time in milliseconds"); |
|
|
|
MODULE_DESCRIPTION("Philips & OEM USB webcam driver"); |
|
MODULE_AUTHOR("Luc Saillard <[email protected]>"); |
|
MODULE_LICENSE("GPL"); |
|
MODULE_ALIAS("pwcx"); |
|
MODULE_VERSION( PWC_VERSION ); |
|
|
|
module_usb_driver(pwc_driver);
|
|
|