diff options
Diffstat (limited to 'drivers/media/video/pwc/pwc-if.c')
| -rw-r--r-- | drivers/media/video/pwc/pwc-if.c | 1165 |
1 files changed, 0 insertions, 1165 deletions
diff --git a/drivers/media/video/pwc/pwc-if.c b/drivers/media/video/pwc/pwc-if.c deleted file mode 100644 index de7c7ba..0000000 --- a/drivers/media/video/pwc/pwc-if.c +++ /dev/null @@ -1,1165 +0,0 @@ -/* Linux driver for Philips webcam - USB and Video4Linux interface part. - (C) 1999-2004 Nemosoft Unv. - (C) 2004-2006 Luc Saillard (luc@saillard.org) - (C) 2011 Hans de Goede <hdegoede@redhat.com> - - 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 <luc@saillard.org>. - The decompression routines have been implemented by reverse-engineering the - Nemosoft binary pwcx module. Caveat emptor. - - 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 Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - -*/ - -/* - 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 - 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 * - 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 - - 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" -#include "pwc-dec1.h" - -/* Function prototypes and driver templates */ - -/* hotplug device table support */ -static const struct usb_device_id pwc_device_table [] = { - { USB_DEVICE(0x0471, 0x0302) }, /* Philips models */ - { USB_DEVICE(0x0471, 0x0303) }, - { USB_DEVICE(0x0471, 0x0304) }, - { USB_DEVICE(0x0471, 0x0307) }, - { USB_DEVICE(0x0471, 0x0308) }, - { USB_DEVICE(0x0471, 0x030C) }, - { USB_DEVICE(0x0471, 0x0310) }, - { USB_DEVICE(0x0471, 0x0311) }, /* Philips ToUcam PRO II */ - { USB_DEVICE(0x0471, 0x0312) }, - { USB_DEVICE(0x0471, 0x0313) }, /* the 'new' 720K */ - { USB_DEVICE(0x0471, 0x0329) }, /* Philips SPC 900NC PC Camera */ - { USB_DEVICE(0x069A, 0x0001) }, /* Askey */ - { USB_DEVICE(0x046D, 0x08B0) }, /* Logitech QuickCam Pro 3000 */ - { USB_DEVICE(0x046D, 0x08B1) }, /* Logitech QuickCam Notebook Pro */ - { USB_DEVICE(0x046D, 0x08B2) }, /* Logitech QuickCam Pro 4000 */ - { USB_DEVICE(0x046D, 0x08B3) }, /* Logitech QuickCam Zoom (old model) */ - { USB_DEVICE(0x046D, 0x08B4) }, /* Logitech QuickCam Zoom (new model) */ - { USB_DEVICE(0x046D, 0x08B5) }, /* Logitech QuickCam Orbit/Sphere */ - { USB_DEVICE(0x046D, 0x08B6) }, /* Cisco VT Camera */ - { USB_DEVICE(0x046D, 0x08B7) }, /* Logitech ViewPort AV 100 */ - { USB_DEVICE(0x046D, 0x08B8) }, /* Logitech (reserved) */ - { USB_DEVICE(0x055D, 0x9000) }, /* Samsung MPC-C10 */ - { USB_DEVICE(0x055D, 0x9001) }, /* Samsung MPC-C30 */ - { USB_DEVICE(0x055D, 0x9002) }, /* Samsung SNC-35E (Ver3.0) */ - { USB_DEVICE(0x041E, 0x400C) }, /* Creative Webcam 5 */ - { USB_DEVICE(0x041E, 0x4011) }, /* Creative Webcam Pro Ex */ - { USB_DEVICE(0x04CC, 0x8116) }, /* Afina Eye */ - { USB_DEVICE(0x06BE, 0x8116) }, /* new Afina Eye */ - { USB_DEVICE(0x0d81, 0x1910) }, /* Visionite */ - { USB_DEVICE(0x0d81, 0x1900) }, - { } -}; -MODULE_DEVICE_TABLE(usb, pwc_device_table); - -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() */ - .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 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 */ - -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) { - input_report_key(pdev->button_dev, KEY_CAMERA, down); - input_sync(pdev->button_dev); - } -#endif -} - -static void pwc_frame_complete(struct pwc_device *pdev) -{ - struct pwc_frame_buf *fbuf = pdev->fill_buf; - - /* The ToUCam Fun CMOS sensor causes the firmware to send 2 or 3 bogus - frames on the USB wire after an exposure change. This conditition is - however detected in the cam and a bit is set in the header. - */ - if (pdev->type == 730) { - unsigned char *ptr = (unsigned char *)fbuf->data; - - if (ptr[1] == 1 && ptr[0] & 0x10) { - PWC_TRACE("Hyundai CMOS sensor bug. Dropping frame.\n"); - pdev->drop_frames += 2; - } - if ((ptr[0] ^ pdev->vmirror) & 0x01) { - pwc_snapshot_button(pdev, ptr[0] & 0x01); - } - if ((ptr[0] ^ pdev->vmirror) & 0x02) { - if (ptr[0] & 0x02) - PWC_TRACE("Image is mirrored.\n"); - else - PWC_TRACE("Image is normal.\n"); - } - pdev->vmirror = ptr[0] & 0x03; - /* Sometimes the trailer of the 730 is still sent as a 4 byte packet - after a short frame; this condition is filtered out specifically. A 4 byte - frame doesn't make sense anyway. - So we get either this sequence: - drop_bit set -> 4 byte frame -> short frame -> good frame - Or this one: - drop_bit set -> short frame -> good frame - So we drop either 3 or 2 frames in all! - */ - if (fbuf->filled == 4) - pdev->drop_frames++; - } else if (pdev->type == 740 || pdev->type == 720) { - unsigned char *ptr = (unsigned char *)fbuf->data; - if ((ptr[0] ^ pdev->vmirror) & 0x01) { - pwc_snapshot_button(pdev, ptr[0] & 0x01); - } - pdev->vmirror = ptr[0] & 0x03; - } - - /* In case we were instructed to drop the frame, do so silently. */ - if (pdev->drop_frames > 0) { - pdev->drop_frames--; - } else { - /* Check for underflow first */ - if (fbuf->filled < pdev->frame_total_size) { - PWC_DEBUG_FLOW("Frame buffer underflow (%d bytes);" - " discarded.\n", fbuf->filled); - } else { - fbuf->vb.v4l2_buf.field = V4L2_FIELD_NONE; - fbuf->vb.v4l2_buf.sequence = pdev->vframe_count; - vb2_buffer_done(&fbuf->vb, VB2_BUF_STATE_DONE); - pdev->fill_buf = NULL; - pdev->vsync = 0; - } - } /* !drop_frames */ - pdev->vframe_count++; -} - -/* This gets called for the Isochronous pipe (video). This is done in - * interrupt time, so it has to be fast, not crash, and not stall. Neat. - */ -static void pwc_isoc_handler(struct urb *urb) -{ - struct pwc_device *pdev = (struct pwc_device *)urb->context; - int i, fst, flen; - unsigned char *iso_buf = NULL; - - if (urb->status == -ENOENT || urb->status == -ECONNRESET || - urb->status == -ESHUTDOWN) { - PWC_DEBUG_OPEN("URB (%p) unlinked %ssynchronuously.\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_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; - - /* 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) { - do_gettimeofday(&fbuf->vb.v4l2_buf.timestamp); - 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; - } - -handler_end: - 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_ERROR("Failed to allocate urb %d\n", i); - 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 = usb_alloc_coherent(udev, - ISO_BUFFER_SIZE, - GFP_KERNEL, - &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->transfer_buffer_length = ISO_BUFFER_SIZE; - 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++) { - if (pdev->urbs[i]) { - PWC_DEBUG_MEMORY("Freeing URB\n"); - if (pdev->urbs[i]->transfer_buffer) { - usb_free_coherent(pdev->udev, - pdev->urbs[i]->transfer_buffer_length, - pdev->urbs[i]->transfer_buffer, - pdev->urbs[i]->transfer_dma); - } - usb_free_urb(pdev->urbs[i]); - 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) -{ - 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_ERROR); - } - 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, const struct v4l2_format *fmt, - unsigned int *nbuffers, unsigned int *nplanes, - unsigned int sizes[], void *alloc_ctxs[]) -{ - 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 pwc_frame_buf *buf = container_of(vb, 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 queing new buffers after device disconnection */ - if (!pdev->udev) - return -ENODEV; - - return 0; -} - -static int buffer_finish(struct vb2_buffer *vb) -{ - struct pwc_device *pdev = vb2_get_drv_priv(vb->vb2_queue); - struct pwc_frame_buf *buf = container_of(vb, struct pwc_frame_buf, vb); - - /* - * 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 - */ - return pwc_decompress(pdev, buf); -} - -static void buffer_cleanup(struct vb2_buffer *vb) -{ - struct pwc_frame_buf *buf = container_of(vb, 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 pwc_frame_buf *buf = container_of(vb, 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(&buf->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); - } - mutex_unlock(&pdev->v4l2_lock); - - return r; -} - -static int stop_streaming(struct vb2_queue *vq) -{ - struct pwc_device *pdev = vb2_get_drv_priv(vq); - - if (mutex_lock_interruptible(&pdev->v4l2_lock)) - return -ERESTARTSYS; - if (pdev->udev) { - pwc_set_leds(pdev, 0, 0); - pwc_camera_power(pdev, 0); - pwc_isoc_cleanup(pdev); - } - - pwc_cleanup_queued_bufs(pdev); - mutex_unlock(&pdev->v4l2_lock); - - return 0; -} - -static 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; - default: - return -ENODEV; - break; - } - } - 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; - break; - } - } - 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; - break; - } - } - 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; - break; - } - } - 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; - break; - } - } - 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; - break; - } - } - 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; - break; - } - - } - 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; - break; - } - } - 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 */ - memset(&pdev->vb_queue, 0, sizeof(pdev->vb_queue)); - 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; - vb2_queue_init(&pdev->vb_queue); - - /* Init video_device structure */ - memcpy(&pdev->vdev, &pwc_template, sizeof(pwc_template)); - strcpy(pdev->vdev.name, name); - pdev->vdev.queue = &pdev->vb_queue; - pdev->vdev.queue->lock = &pdev->vb_queue_lock; - set_bit(V4L2_FL_USE_FH_PRIO, &pdev->vdev.flags); - 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 intial 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; - - rc = video_register_device(&pdev->vdev, VFL_TYPE_GRABBER, -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) { - PWC_ERROR("Err, insufficient memory for webcam snapshot button device."); - 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; - -err_video_unreg: - video_unregister_device(&pdev->vdev); -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; - pwc_cleanup_queued_bufs(pdev); - - 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 <luc@saillard.org>"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("pwcx"); -MODULE_VERSION( PWC_VERSION ); - -module_usb_driver(pwc_driver); |
