| /* 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 |
| |
| static int default_fps = 10; |
| #ifdef CONFIG_USB_PWC_DEBUG |
| int pwc_trace = PWC_DEBUG_LEVEL; |
| #endif |
| static int power_save = -1; |
| static int led_on = 100, led_off; /* defaults to LED that is on while in use */ |
| static int pwc_preferred_compression = 1; /* 0..3 = uncompressed..high */ |
| static struct { |
| int type; |
| char serial_number[30]; |
| int device_node; |
| struct pwc_device *pdev; |
| } device_hint[MAX_DEV_HINTS]; |
| |
| /***/ |
| |
| static int pwc_video_open(struct file *file); |
| static int pwc_video_close(struct file *file); |
| static ssize_t pwc_video_read(struct file *file, char __user *buf, |
| size_t count, loff_t *ppos); |
| static unsigned int pwc_video_poll(struct file *file, poll_table *wait); |
| static int pwc_video_mmap(struct file *file, struct vm_area_struct *vma); |
| static void pwc_video_release(struct video_device *vfd); |
| |
| static const struct v4l2_file_operations pwc_fops = { |
| .owner = THIS_MODULE, |
| .open = pwc_video_open, |
| .release = pwc_video_close, |
| .read = pwc_video_read, |
| .poll = pwc_video_poll, |
| .mmap = pwc_video_mmap, |
| .unlocked_ioctl = video_ioctl2, |
| }; |
| static struct video_device pwc_template = { |
| .name = "Philips Webcam", /* Filled in later */ |
| .release = pwc_video_release, |
| .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"); |
| pdev->snapshot_button_status = 1; |
| } 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); |
| } |
| |
| 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; |
| |
| if (pdev->iso_init) |
| return 0; |
| |
| pdev->vsync = 0; |
| pdev->vlast_packet_size = 0; |
| pdev->fill_buf = NULL; |
| pdev->vframe_count = 0; |
| pdev->visoc_errors = 0; |
| udev = pdev->udev; |
| |
| /* 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 */ |
| ret = 0; |
| PWC_DEBUG_OPEN("Setting alternate interface %d\n", pdev->valternate); |
| ret = usb_set_interface(pdev->udev, 0, pdev->valternate); |
| 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); |
| pdev->iso_init = 1; |
| 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); |
| pdev->iso_init = 1; |
| 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) { |
| PWC_ERROR("isoc_init() submit_urb %d failed with error %d\n", i, ret); |
| pdev->iso_init = 1; |
| pwc_isoc_cleanup(pdev); |
| return ret; |
| } |
| PWC_DEBUG_MEMORY("URB 0x%p submitted.\n", pdev->urbs[i]); |
| } |
| |
| /* All is done... */ |
| pdev->iso_init = 1; |
| 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; |
| } |
| } |
| } |
| |
| static void pwc_isoc_cleanup(struct pwc_device *pdev) |
| { |
| PWC_DEBUG_OPEN(">> pwc_isoc_cleanup()\n"); |
| |
| if (pdev->iso_init == 0) |
| return; |
| |
| pwc_iso_stop(pdev); |
| pwc_iso_free(pdev); |
| usb_set_interface(pdev->udev, 0, 0); |
| |
| pdev->iso_init = 0; |
| PWC_DEBUG_OPEN("<< pwc_isoc_cleanup()\n"); |
| } |
| |
| /* |
| * Release all queued buffers, no need to take queued_bufs_lock, since all |
| * iso urbs have been killed when we're called so pwc_isoc_handler won't run. |
| */ |
| static void pwc_cleanup_queued_bufs(struct pwc_device *pdev) |
| { |
| 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); |
| } |
| } |
| |
| /********* |
| * sysfs |
| *********/ |
| static struct pwc_device *cd_to_pwc(struct device *cd) |
| { |
| struct video_device *vdev = to_video_device(cd); |
| return video_get_drvdata(vdev); |
| } |
| |
| static ssize_t show_pan_tilt(struct device *class_dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct pwc_device *pdev = cd_to_pwc(class_dev); |
| return sprintf(buf, "%d %d\n", pdev->pan_angle, pdev->tilt_angle); |
| } |
| |
| static ssize_t store_pan_tilt(struct device *class_dev, |
| struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct pwc_device *pdev = cd_to_pwc(class_dev); |
| int pan, tilt; |
| int ret = -EINVAL; |
| |
| if (strncmp(buf, "reset", 5) == 0) |
| ret = pwc_mpt_reset(pdev, 0x3); |
| |
| else if (sscanf(buf, "%d %d", &pan, &tilt) > 0) |
| ret = pwc_mpt_set_angle(pdev, pan, tilt); |
| |
| if (ret < 0) |
| return ret; |
| return strlen(buf); |
| } |
| static DEVICE_ATTR(pan_tilt, S_IRUGO | S_IWUSR, show_pan_tilt, |
| store_pan_tilt); |
| |
| static ssize_t show_snapshot_button_status(struct device *class_dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct pwc_device *pdev = cd_to_pwc(class_dev); |
| int status = pdev->snapshot_button_status; |
| pdev->snapshot_button_status = 0; |
| return sprintf(buf, "%d\n", status); |
| } |
| |
| static DEVICE_ATTR(button, S_IRUGO | S_IWUSR, show_snapshot_button_status, |
| NULL); |
| |
| static int pwc_create_sysfs_files(struct pwc_device *pdev) |
| { |
| int rc; |
| |
| rc = device_create_file(&pdev->vdev.dev, &dev_attr_button); |
| if (rc) |
| goto err; |
| if (pdev->features & FEATURE_MOTOR_PANTILT) { |
| rc = device_create_file(&pdev->vdev.dev, &dev_attr_pan_tilt); |
| if (rc) |
| goto err_button; |
| } |
| |
| return 0; |
| |
| err_button: |
| device_remove_file(&pdev->vdev.dev, &dev_attr_button); |
| err: |
| PWC_ERROR("Could not create sysfs files.\n"); |
| return rc; |
| } |
| |
| static void pwc_remove_sysfs_files(struct pwc_device *pdev) |
| { |
| if (pdev->features & FEATURE_MOTOR_PANTILT) |
| device_remove_file(&pdev->vdev.dev, &dev_attr_pan_tilt); |
| device_remove_file(&pdev->vdev.dev, &dev_attr_button); |
| } |
| |
| #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 int pwc_video_open(struct file *file) |
| { |
| struct video_device *vdev = video_devdata(file); |
| struct pwc_device *pdev; |
| |
| PWC_DEBUG_OPEN(">> video_open called(vdev = 0x%p).\n", vdev); |
| |
| pdev = video_get_drvdata(vdev); |
| if (!pdev->udev) |
| return -ENODEV; |
| |
| file->private_data = vdev; |
| PWC_DEBUG_OPEN("<< video_open() returns 0.\n"); |
| return 0; |
| } |
| |
| static void pwc_video_release(struct video_device *vfd) |
| { |
| struct pwc_device *pdev = container_of(vfd, struct pwc_device, vdev); |
| int hint; |
| |
| /* search device_hint[] table if we occupy a slot, by any chance */ |
| for (hint = 0; hint < MAX_DEV_HINTS; hint++) |
| if (device_hint[hint].pdev == pdev) |
| device_hint[hint].pdev = NULL; |
| |
| /* Free intermediate decompression buffer & tables */ |
| if (pdev->decompress_data != NULL) { |
| PWC_DEBUG_MEMORY("Freeing decompression buffer at %p.\n", |
| pdev->decompress_data); |
| kfree(pdev->decompress_data); |
| pdev->decompress_data = NULL; |
| } |
| |
| v4l2_ctrl_handler_free(&pdev->ctrl_handler); |
| |
| kfree(pdev); |
| } |
| |
| static int pwc_video_close(struct file *file) |
| { |
| struct video_device *vdev = file->private_data; |
| struct pwc_device *pdev; |
| |
| PWC_DEBUG_OPEN(">> video_close called(vdev = 0x%p).\n", vdev); |
| |
| pdev = video_get_drvdata(vdev); |
| if (pdev->capt_file == file) { |
| vb2_queue_release(&pdev->vb_queue); |
| pdev->capt_file = NULL; |
| } |
| |
| PWC_DEBUG_OPEN("<< video_close()\n"); |
| return 0; |
| } |
| |
| static ssize_t pwc_video_read(struct file *file, char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| struct video_device *vdev = file->private_data; |
| struct pwc_device *pdev = video_get_drvdata(vdev); |
| |
| if (!pdev->udev) |
| return -ENODEV; |
| |
| if (pdev->capt_file != NULL && |
| pdev->capt_file != file) |
| return -EBUSY; |
| |
| pdev->capt_file = file; |
| |
| return vb2_read(&pdev->vb_queue, buf, count, ppos, |
| file->f_flags & O_NONBLOCK); |
| } |
| |
| static unsigned int pwc_video_poll(struct file *file, poll_table *wait) |
| { |
| struct video_device *vdev = file->private_data; |
| struct pwc_device *pdev = video_get_drvdata(vdev); |
| |
| if (!pdev->udev) |
| return POLL_ERR; |
| |
| return vb2_poll(&pdev->vb_queue, file, wait); |
| } |
| |
| static int pwc_video_mmap(struct file *file, struct vm_area_struct *vma) |
| { |
| struct video_device *vdev = file->private_data; |
| struct pwc_device *pdev = video_get_drvdata(vdev); |
| |
| if (pdev->capt_file != file) |
| return -EBUSY; |
| |
| return vb2_mmap(&pdev->vb_queue, vma); |
| } |
| |
| /***************************************************************************/ |
| /* Videobuf2 operations */ |
| |
| static int queue_setup(struct vb2_queue *vq, unsigned int *nbuffers, |
| unsigned int *nplanes, unsigned long sizes[], |
| void *alloc_ctxs[]) |
| { |
| struct pwc_device *pdev = vb2_get_drv_priv(vq); |
| |
| if (*nbuffers < MIN_FRAMES) |
| *nbuffers = MIN_FRAMES; |
| else if (*nbuffers > MAX_FRAMES) |
| *nbuffers = MAX_FRAMES; |
| |
| *nplanes = 1; |
| |
| sizes[0] = PAGE_ALIGN((pdev->abs_max.x * pdev->abs_max.y * 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; |
| |
| 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) |
| { |
| struct pwc_device *pdev = vb2_get_drv_priv(vq); |
| |
| if (!pdev->udev) |
| return -ENODEV; |
| |
| /* Turn on camera and set LEDS on */ |
| pwc_camera_power(pdev, 1); |
| if (pdev->power_save) { |
| /* Restore video mode */ |
| pwc_set_video_mode(pdev, pdev->view.x, pdev->view.y, |
| pdev->vframes, pdev->vcompression, |
| pdev->vsnapshot); |
| } |
| pwc_set_leds(pdev, led_on, led_off); |
| |
| return pwc_isoc_init(pdev); |
| } |
| |
| static int stop_streaming(struct vb2_queue *vq) |
| { |
| struct pwc_device *pdev = vb2_get_drv_priv(vq); |
| |
| if (pdev->udev) { |
| pwc_set_leds(pdev, 0, 0); |
| pwc_camera_power(pdev, 0); |
| pwc_isoc_cleanup(pdev); |
| } |
| pwc_cleanup_queued_bufs(pdev); |
| |
| return 0; |
| } |
| |
| static void pwc_lock(struct vb2_queue *vq) |
| { |
| struct pwc_device *pdev = vb2_get_drv_priv(vq); |
| mutex_lock(&pdev->modlock); |
| } |
| |
| static void pwc_unlock(struct vb2_queue *vq) |
| { |
| struct pwc_device *pdev = vb2_get_drv_priv(vq); |
| mutex_unlock(&pdev->modlock); |
| } |
| |
| 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 = pwc_unlock, |
| .wait_finish = pwc_lock, |
| }; |
| |
| /***************************************************************************/ |
| /* 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 hint, rc; |
| int features = 0; |
| int video_nr = -1; /* default: use next available device */ |
| 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->vframes = default_fps; |
| strcpy(pdev->serial, serial_number); |
| pdev->features = features; |
| if (vendor_id == 0x046D && product_id == 0x08B5) { |
| /* Logitech QuickCam Orbit |
| The ranges have been determined experimentally; they may differ from cam to cam. |
| Also, the exact ranges left-right and up-down are different for my cam |
| */ |
| pdev->angle_range.pan_min = -7000; |
| pdev->angle_range.pan_max = 7000; |
| pdev->angle_range.tilt_min = -3000; |
| pdev->angle_range.tilt_max = 2500; |
| } |
| pwc_construct(pdev); /* set min/max sizes correct */ |
| |
| mutex_init(&pdev->modlock); |
| mutex_init(&pdev->udevlock); |
| spin_lock_init(&pdev->queued_bufs_lock); |
| INIT_LIST_HEAD(&pdev->queued_bufs); |
| |
| pdev->udev = udev; |
| pdev->vcompression = pwc_preferred_compression; |
| 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)); |
| pdev->vdev.parent = &intf->dev; |
| pdev->vdev.lock = &pdev->modlock; |
| strcpy(pdev->vdev.name, name); |
| video_set_drvdata(&pdev->vdev, pdev); |
| |
| pdev->release = le16_to_cpu(udev->descriptor.bcdDevice); |
| PWC_DEBUG_PROBE("Release: %04x\n", pdev->release); |
| |
| /* Now search device_hint[] table for a match, so we can hint a node number. */ |
| for (hint = 0; hint < MAX_DEV_HINTS; hint++) { |
| if (((device_hint[hint].type == -1) || (device_hint[hint].type == pdev->type)) && |
| (device_hint[hint].pdev == NULL)) { |
| /* so far, so good... try serial number */ |
| if ((device_hint[hint].serial_number[0] == '*') || !strcmp(device_hint[hint].serial_number, serial_number)) { |
| /* match! */ |
| video_nr = device_hint[hint].device_node; |
| PWC_DEBUG_PROBE("Found hint, will try to register as /dev/video%d\n", video_nr); |
| break; |
| } |
| } |
| } |
| |
| /* occupy slot */ |
| if (hint < MAX_DEV_HINTS) |
| device_hint[hint].pdev = pdev; |
| |
| PWC_DEBUG_PROBE("probe() function returning struct at 0x%p.\n", pdev); |
| usb_set_intfdata(intf, pdev); |
| |
| #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, pdev->view_max.x, pdev->view_max.y, |
| pdev->vframes, pdev->vcompression, 0); |
| 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; |
| } |
| |
| pdev->vdev.ctrl_handler = &pdev->ctrl_handler; |
| |
| /* And powerdown the camera until streaming starts */ |
| pwc_camera_power(pdev, 0); |
| |
| rc = video_register_device(&pdev->vdev, VFL_TYPE_GRABBER, video_nr); |
| if (rc < 0) { |
| PWC_ERROR("Failed to register as video device (%d).\n", rc); |
| goto err_free_controls; |
| } |
| rc = pwc_create_sysfs_files(pdev); |
| if (rc) |
| goto err_video_unreg; |
| |
| 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; |
| pwc_remove_sysfs_files(pdev); |
| 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; |
| pwc_remove_sysfs_files(pdev); |
| goto err_video_unreg; |
| } |
| #endif |
| |
| return 0; |
| |
| err_video_unreg: |
| if (hint < MAX_DEV_HINTS) |
| device_hint[hint].pdev = NULL; |
| video_unregister_device(&pdev->vdev); |
| err_free_controls: |
| v4l2_ctrl_handler_free(&pdev->ctrl_handler); |
| err_free_mem: |
| usb_set_intfdata(intf, NULL); |
| kfree(pdev); |
| return rc; |
| } |
| |
| /* The user yanked out the cable... */ |
| static void usb_pwc_disconnect(struct usb_interface *intf) |
| { |
| struct pwc_device *pdev = usb_get_intfdata(intf); |
| |
| mutex_lock(&pdev->udevlock); |
| mutex_lock(&pdev->modlock); |
| |
| usb_set_intfdata(intf, NULL); |
| /* No need to keep the urbs around after disconnection */ |
| pwc_isoc_cleanup(pdev); |
| pwc_cleanup_queued_bufs(pdev); |
| pdev->udev = NULL; |
| |
| mutex_unlock(&pdev->modlock); |
| mutex_unlock(&pdev->udevlock); |
| |
| pwc_remove_sysfs_files(pdev); |
| video_unregister_device(&pdev->vdev); |
| |
| #ifdef CONFIG_USB_PWC_INPUT_EVDEV |
| if (pdev->button_dev) |
| input_unregister_device(pdev->button_dev); |
| #endif |
| } |
| |
| |
| /* |
| * Initialization code & module stuff |
| */ |
| |
| static int fps; |
| static int compression = -1; |
| static int leds[2] = { -1, -1 }; |
| static unsigned int leds_nargs; |
| static char *dev_hint[MAX_DEV_HINTS]; |
| static unsigned int dev_hint_nargs; |
| |
| module_param(fps, int, 0444); |
| #ifdef CONFIG_USB_PWC_DEBUG |
| module_param_named(trace, pwc_trace, int, 0644); |
| #endif |
| module_param(power_save, int, 0644); |
| module_param(compression, int, 0444); |
| module_param_array(leds, int, &leds_nargs, 0444); |
| module_param_array(dev_hint, charp, &dev_hint_nargs, 0444); |
| |
| MODULE_PARM_DESC(fps, "Initial frames per second. Varies with model, useful range 5-30"); |
| #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(compression, "Preferred compression quality. Range 0 (uncompressed) to 3 (high compression)"); |
| MODULE_PARM_DESC(leds, "LED on,off time in milliseconds"); |
| MODULE_PARM_DESC(dev_hint, "Device node hints"); |
| |
| MODULE_DESCRIPTION("Philips & OEM USB webcam driver"); |
| MODULE_AUTHOR("Luc Saillard <luc@saillard.org>"); |
| MODULE_LICENSE("GPL"); |
| MODULE_ALIAS("pwcx"); |
| MODULE_VERSION( PWC_VERSION ); |
| |
| static int __init usb_pwc_init(void) |
| { |
| int i; |
| |
| #ifdef CONFIG_USB_PWC_DEBUG |
| PWC_INFO("Philips webcam module version " PWC_VERSION " loaded.\n"); |
| PWC_INFO("Supports Philips PCA645/646, PCVC675/680/690, PCVC720[40]/730/740/750 & PCVC830/840.\n"); |
| PWC_INFO("Also supports the Askey VC010, various Logitech Quickcams, Samsung MPC-C10 and MPC-C30,\n"); |
| PWC_INFO("the Creative WebCam 5 & Pro Ex, SOTEC Afina Eye and Visionite VCS-UC300 and VCS-UM100.\n"); |
| |
| if (pwc_trace >= 0) { |
| PWC_DEBUG_MODULE("Trace options: 0x%04x\n", pwc_trace); |
| } |
| #endif |
| |
| if (fps) { |
| if (fps < 4 || fps > 30) { |
| PWC_ERROR("Framerate out of bounds (4-30).\n"); |
| return -EINVAL; |
| } |
| default_fps = fps; |
| PWC_DEBUG_MODULE("Default framerate set to %d.\n", default_fps); |
| } |
| |
| if (compression >= 0) { |
| if (compression > 3) { |
| PWC_ERROR("Invalid compression setting; use a number between 0 (uncompressed) and 3 (high).\n"); |
| return -EINVAL; |
| } |
| pwc_preferred_compression = compression; |
| PWC_DEBUG_MODULE("Preferred compression set to %d.\n", pwc_preferred_compression); |
| } |
| if (leds[0] >= 0) |
| led_on = leds[0]; |
| if (leds[1] >= 0) |
| led_off = leds[1]; |
| |
| /* Big device node whoopla. Basically, it allows you to assign a |
| device node (/dev/videoX) to a camera, based on its type |
| & serial number. The format is [type[.serialnumber]:]node. |
| |
| Any camera that isn't matched by these rules gets the next |
| available free device node. |
| */ |
| for (i = 0; i < MAX_DEV_HINTS; i++) { |
| char *s, *colon, *dot; |
| |
| /* This loop also initializes the array */ |
| device_hint[i].pdev = NULL; |
| s = dev_hint[i]; |
| if (s != NULL && *s != '\0') { |
| device_hint[i].type = -1; /* wildcard */ |
| strcpy(device_hint[i].serial_number, "*"); |
| |
| /* parse string: chop at ':' & '/' */ |
| colon = dot = s; |
| while (*colon != '\0' && *colon != ':') |
| colon++; |
| while (*dot != '\0' && *dot != '.') |
| dot++; |
| /* Few sanity checks */ |
| if (*dot != '\0' && dot > colon) { |
| PWC_ERROR("Malformed camera hint: the colon must be after the dot.\n"); |
| return -EINVAL; |
| } |
| |
| if (*colon == '\0') { |
| /* No colon */ |
| if (*dot != '\0') { |
| PWC_ERROR("Malformed camera hint: no colon + device node given.\n"); |
| return -EINVAL; |
| } |
| else { |
| /* No type or serial number specified, just a number. */ |
| device_hint[i].device_node = |
| simple_strtol(s, NULL, 10); |
| } |
| } |
| else { |
| /* There's a colon, so we have at least a type and a device node */ |
| device_hint[i].type = |
| simple_strtol(s, NULL, 10); |
| device_hint[i].device_node = |
| simple_strtol(colon + 1, NULL, 10); |
| if (*dot != '\0') { |
| /* There's a serial number as well */ |
| int k; |
| |
| dot++; |
| k = 0; |
| while (*dot != ':' && k < 29) { |
| device_hint[i].serial_number[k++] = *dot; |
| dot++; |
| } |
| device_hint[i].serial_number[k] = '\0'; |
| } |
| } |
| PWC_TRACE("device_hint[%d]:\n", i); |
| PWC_TRACE(" type : %d\n", device_hint[i].type); |
| PWC_TRACE(" serial# : %s\n", device_hint[i].serial_number); |
| PWC_TRACE(" node : %d\n", device_hint[i].device_node); |
| } |
| else |
| device_hint[i].type = 0; /* not filled */ |
| } /* ..for MAX_DEV_HINTS */ |
| |
| PWC_DEBUG_PROBE("Registering driver at address 0x%p.\n", &pwc_driver); |
| return usb_register(&pwc_driver); |
| } |
| |
| static void __exit usb_pwc_exit(void) |
| { |
| PWC_DEBUG_MODULE("Deregistering driver.\n"); |
| usb_deregister(&pwc_driver); |
| PWC_INFO("Philips webcam module removed.\n"); |
| } |
| |
| module_init(usb_pwc_init); |
| module_exit(usb_pwc_exit); |
| |
| /* vim: set cino= formatoptions=croql cindent shiftwidth=8 tabstop=8: */ |