diff options
Diffstat (limited to 'drivers/media/video/zr364xx.c')
| -rw-r--r-- | drivers/media/video/zr364xx.c | 944 |
1 files changed, 0 insertions, 944 deletions
diff --git a/drivers/media/video/zr364xx.c b/drivers/media/video/zr364xx.c deleted file mode 100644 index 93023560f32..00000000000 --- a/drivers/media/video/zr364xx.c +++ /dev/null @@ -1,944 +0,0 @@ -/* - * Zoran 364xx based USB webcam module version 0.72 - * - * Allows you to use your USB webcam with V4L2 applications - * This is still in heavy developpement ! - * - * Copyright (C) 2004 Antoine Jacquet <royale@zerezo.com> - * http://royale.zerezo.com/zr364xx/ - * - * Heavily inspired by usb-skeleton.c, vicam.c, cpia.c and spca50x.c drivers - * V4L2 version inspired by meye.c driver - * - * 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 - */ - - -#include <linux/version.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/usb.h> -#include <linux/vmalloc.h> -#include <linux/slab.h> -#include <linux/proc_fs.h> -#include <linux/highmem.h> -#include <media/v4l2-common.h> -#include <media/v4l2-ioctl.h> - - -/* Version Information */ -#define DRIVER_VERSION "v0.72" -#define DRIVER_AUTHOR "Antoine Jacquet, http://royale.zerezo.com/" -#define DRIVER_DESC "Zoran 364xx" - - -/* Camera */ -#define FRAMES 2 -#define MAX_FRAME_SIZE 100000 -#define BUFFER_SIZE 0x1000 -#define CTRL_TIMEOUT 500 - - -/* Debug macro */ -#define DBG(x...) if (debug) printk(KERN_INFO KBUILD_MODNAME x) - - -/* Init methods, need to find nicer names for these - * the exact names of the chipsets would be the best if someone finds it */ -#define METHOD0 0 -#define METHOD1 1 -#define METHOD2 2 - - -/* Module parameters */ -static int debug; -static int mode; - - -/* Module parameters interface */ -module_param(debug, int, 0644); -MODULE_PARM_DESC(debug, "Debug level"); -module_param(mode, int, 0644); -MODULE_PARM_DESC(mode, "0 = 320x240, 1 = 160x120, 2 = 640x480"); - - -/* Devices supported by this driver - * .driver_info contains the init method used by the camera */ -static struct usb_device_id device_table[] = { - {USB_DEVICE(0x08ca, 0x0109), .driver_info = METHOD0 }, - {USB_DEVICE(0x041e, 0x4024), .driver_info = METHOD0 }, - {USB_DEVICE(0x0d64, 0x0108), .driver_info = METHOD0 }, - {USB_DEVICE(0x0546, 0x3187), .driver_info = METHOD0 }, - {USB_DEVICE(0x0d64, 0x3108), .driver_info = METHOD0 }, - {USB_DEVICE(0x0595, 0x4343), .driver_info = METHOD0 }, - {USB_DEVICE(0x0bb0, 0x500d), .driver_info = METHOD0 }, - {USB_DEVICE(0x0feb, 0x2004), .driver_info = METHOD0 }, - {USB_DEVICE(0x055f, 0xb500), .driver_info = METHOD0 }, - {USB_DEVICE(0x08ca, 0x2062), .driver_info = METHOD2 }, - {USB_DEVICE(0x052b, 0x1a18), .driver_info = METHOD1 }, - {USB_DEVICE(0x04c8, 0x0729), .driver_info = METHOD0 }, - {USB_DEVICE(0x04f2, 0xa208), .driver_info = METHOD0 }, - {USB_DEVICE(0x0784, 0x0040), .driver_info = METHOD1 }, - {USB_DEVICE(0x06d6, 0x0034), .driver_info = METHOD0 }, - {USB_DEVICE(0x0a17, 0x0062), .driver_info = METHOD2 }, - {USB_DEVICE(0x06d6, 0x003b), .driver_info = METHOD0 }, - {USB_DEVICE(0x0a17, 0x004e), .driver_info = METHOD2 }, - {USB_DEVICE(0x041e, 0x405d), .driver_info = METHOD2 }, - {} /* Terminating entry */ -}; - -MODULE_DEVICE_TABLE(usb, device_table); - - -/* Camera stuff */ -struct zr364xx_camera { - struct usb_device *udev; /* save off the usb device pointer */ - struct usb_interface *interface;/* the interface for this device */ - struct video_device *vdev; /* v4l video device */ - u8 *framebuf; - int nb; - unsigned char *buffer; - int skip; - int brightness; - int width; - int height; - int method; - struct mutex lock; - int users; -}; - - -/* function used to send initialisation commands to the camera */ -static int send_control_msg(struct usb_device *udev, u8 request, u16 value, - u16 index, unsigned char *cp, u16 size) -{ - int status; - - unsigned char *transfer_buffer = kmalloc(size, GFP_KERNEL); - if (!transfer_buffer) { - dev_err(&udev->dev, "kmalloc(%d) failed\n", size); - return -ENOMEM; - } - - memcpy(transfer_buffer, cp, size); - - status = usb_control_msg(udev, - usb_sndctrlpipe(udev, 0), - request, - USB_DIR_OUT | USB_TYPE_VENDOR | - USB_RECIP_DEVICE, value, index, - transfer_buffer, size, CTRL_TIMEOUT); - - kfree(transfer_buffer); - - if (status < 0) - dev_err(&udev->dev, - "Failed sending control message, error %d.\n", status); - - return status; -} - - -/* Control messages sent to the camera to initialize it - * and launch the capture */ -typedef struct { - unsigned int value; - unsigned int size; - unsigned char *bytes; -} message; - -/* method 0 */ -static unsigned char m0d1[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; -static unsigned char m0d2[] = { 0, 0, 0, 0, 0, 0 }; -static unsigned char m0d3[] = { 0, 0 }; -static message m0[] = { - {0x1f30, 0, NULL}, - {0xd000, 0, NULL}, - {0x3370, sizeof(m0d1), m0d1}, - {0x2000, 0, NULL}, - {0x2f0f, 0, NULL}, - {0x2610, sizeof(m0d2), m0d2}, - {0xe107, 0, NULL}, - {0x2502, 0, NULL}, - {0x1f70, 0, NULL}, - {0xd000, 0, NULL}, - {0x9a01, sizeof(m0d3), m0d3}, - {-1, -1, NULL} -}; - -/* method 1 */ -static unsigned char m1d1[] = { 0xff, 0xff }; -static unsigned char m1d2[] = { 0x00, 0x00 }; -static message m1[] = { - {0x1f30, 0, NULL}, - {0xd000, 0, NULL}, - {0xf000, 0, NULL}, - {0x2000, 0, NULL}, - {0x2f0f, 0, NULL}, - {0x2650, 0, NULL}, - {0xe107, 0, NULL}, - {0x2502, sizeof(m1d1), m1d1}, - {0x1f70, 0, NULL}, - {0xd000, 0, NULL}, - {0xd000, 0, NULL}, - {0xd000, 0, NULL}, - {0x9a01, sizeof(m1d2), m1d2}, - {-1, -1, NULL} -}; - -/* method 2 */ -static unsigned char m2d1[] = { 0xff, 0xff }; -static message m2[] = { - {0x1f30, 0, NULL}, - {0xf000, 0, NULL}, - {0x2000, 0, NULL}, - {0x2f0f, 0, NULL}, - {0x2650, 0, NULL}, - {0xe107, 0, NULL}, - {0x2502, sizeof(m2d1), m2d1}, - {0x1f70, 0, NULL}, - {-1, -1, NULL} -}; - -/* init table */ -static message *init[3] = { m0, m1, m2 }; - - -/* JPEG static data in header (Huffman table, etc) */ -static unsigned char header1[] = { - 0xFF, 0xD8, - /* - 0xFF, 0xE0, 0x00, 0x10, 'J', 'F', 'I', 'F', - 0x00, 0x01, 0x01, 0x00, 0x33, 0x8A, 0x00, 0x00, 0x33, 0x88, - */ - 0xFF, 0xDB, 0x00, 0x84 -}; -static unsigned char header2[] = { - 0xFF, 0xC4, 0x00, 0x1F, 0x00, 0x00, 0x01, 0x05, 0x01, 0x01, 0x01, - 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, - 0xFF, 0xC4, 0x00, 0xB5, 0x10, 0x00, 0x02, 0x01, 0x03, 0x03, 0x02, - 0x04, 0x03, 0x05, 0x05, 0x04, 0x04, 0x00, 0x00, 0x01, 0x7D, 0x01, - 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12, 0x21, 0x31, 0x41, 0x06, - 0x13, 0x51, 0x61, 0x07, 0x22, 0x71, 0x14, 0x32, 0x81, 0x91, 0xA1, - 0x08, 0x23, 0x42, 0xB1, 0xC1, 0x15, 0x52, 0xD1, 0xF0, 0x24, 0x33, - 0x62, 0x72, 0x82, 0x09, 0x0A, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x25, - 0x26, 0x27, 0x28, 0x29, 0x2A, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, - 0x3A, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x53, 0x54, - 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x63, 0x64, 0x65, 0x66, 0x67, - 0x68, 0x69, 0x6A, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, - 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x92, 0x93, 0x94, - 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, - 0xA7, 0xA8, 0xA9, 0xAA, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, - 0xB9, 0xBA, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, - 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xE1, 0xE2, - 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xF1, 0xF2, 0xF3, - 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA, 0xFF, 0xC4, 0x00, 0x1F, - 0x01, 0x00, 0x03, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, - 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02, 0x03, 0x04, - 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0xFF, 0xC4, 0x00, 0xB5, - 0x11, 0x00, 0x02, 0x01, 0x02, 0x04, 0x04, 0x03, 0x04, 0x07, 0x05, - 0x04, 0x04, 0x00, 0x01, 0x02, 0x77, 0x00, 0x01, 0x02, 0x03, 0x11, - 0x04, 0x05, 0x21, 0x31, 0x06, 0x12, 0x41, 0x51, 0x07, 0x61, 0x71, - 0x13, 0x22, 0x32, 0x81, 0x08, 0x14, 0x42, 0x91, 0xA1, 0xB1, 0xC1, - 0x09, 0x23, 0x33, 0x52, 0xF0, 0x15, 0x62, 0x72, 0xD1, 0x0A, 0x16, - 0x24, 0x34, 0xE1, 0x25, 0xF1, 0x17, 0x18, 0x19, 0x1A, 0x26, 0x27, - 0x28, 0x29, 0x2A, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x43, 0x44, - 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x53, 0x54, 0x55, 0x56, 0x57, - 0x58, 0x59, 0x5A, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, - 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x82, 0x83, 0x84, - 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x92, 0x93, 0x94, 0x95, 0x96, - 0x97, 0x98, 0x99, 0x9A, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, - 0xA9, 0xAA, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, - 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xD2, 0xD3, - 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xE2, 0xE3, 0xE4, 0xE5, - 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, - 0xF8, 0xF9, 0xFA, 0xFF, 0xC0, 0x00, 0x11, 0x08, 0x00, 0xF0, 0x01, - 0x40, 0x03, 0x01, 0x21, 0x00, 0x02, 0x11, 0x01, 0x03, 0x11, 0x01, - 0xFF, 0xDA, 0x00, 0x0C, 0x03, 0x01, 0x00, 0x02, 0x11, 0x03, 0x11, - 0x00, 0x3F, 0x00 -}; -static unsigned char header3; - - - -/********************/ -/* V4L2 integration */ -/********************/ - -/* this function reads a full JPEG picture synchronously - * TODO: do it asynchronously... */ -static int read_frame(struct zr364xx_camera *cam, int framenum) -{ - int i, n, temp, head, size, actual_length; - unsigned char *ptr = NULL, *jpeg; - - redo: - /* hardware brightness */ - n = send_control_msg(cam->udev, 1, 0x2001, 0, NULL, 0); - temp = (0x60 << 8) + 127 - cam->brightness; - n = send_control_msg(cam->udev, 1, temp, 0, NULL, 0); - - /* during the first loop we are going to insert JPEG header */ - head = 0; - /* this is the place in memory where we are going to build - * the JPEG image */ - jpeg = cam->framebuf + framenum * MAX_FRAME_SIZE; - /* read data... */ - do { - n = usb_bulk_msg(cam->udev, - usb_rcvbulkpipe(cam->udev, 0x81), - cam->buffer, BUFFER_SIZE, &actual_length, - CTRL_TIMEOUT); - DBG("buffer : %d %d", cam->buffer[0], cam->buffer[1]); - DBG("bulk : n=%d size=%d", n, actual_length); - if (n < 0) { - dev_err(&cam->udev->dev, "error reading bulk msg\n"); - return 0; - } - if (actual_length < 0 || actual_length > BUFFER_SIZE) { - dev_err(&cam->udev->dev, "wrong number of bytes\n"); - return 0; - } - - /* swap bytes if camera needs it */ - if (cam->method == METHOD0) { - u16 *buf = (u16*)cam->buffer; - for (i = 0; i < BUFFER_SIZE/2; i++) - swab16s(buf + i); - } - - /* write the JPEG header */ - if (!head) { - DBG("jpeg header"); - ptr = jpeg; - memcpy(ptr, header1, sizeof(header1)); - ptr += sizeof(header1); - header3 = 0; - memcpy(ptr, &header3, 1); - ptr++; - memcpy(ptr, cam->buffer, 64); - ptr += 64; - header3 = 1; - memcpy(ptr, &header3, 1); - ptr++; - memcpy(ptr, cam->buffer + 64, 64); - ptr += 64; - memcpy(ptr, header2, sizeof(header2)); - ptr += sizeof(header2); - memcpy(ptr, cam->buffer + 128, - actual_length - 128); - ptr += actual_length - 128; - head = 1; - DBG("header : %d %d %d %d %d %d %d %d %d", - cam->buffer[0], cam->buffer[1], cam->buffer[2], - cam->buffer[3], cam->buffer[4], cam->buffer[5], - cam->buffer[6], cam->buffer[7], cam->buffer[8]); - } else { - memcpy(ptr, cam->buffer, actual_length); - ptr += actual_length; - } - } - /* ... until there is no more */ - while (actual_length == BUFFER_SIZE); - - /* we skip the 2 first frames which are usually buggy */ - if (cam->skip) { - cam->skip--; - goto redo; - } - - /* go back to find the JPEG EOI marker */ - size = ptr - jpeg; - ptr -= 2; - while (ptr > jpeg) { - if (*ptr == 0xFF && *(ptr + 1) == 0xD9 - && *(ptr + 2) == 0xFF) - break; - ptr--; - } - if (ptr == jpeg) - DBG("No EOI marker"); - - /* Sometimes there is junk data in the middle of the picture, - * we want to skip this bogus frames */ - while (ptr > jpeg) { - if (*ptr == 0xFF && *(ptr + 1) == 0xFF - && *(ptr + 2) == 0xFF) - break; - ptr--; - } - if (ptr != jpeg) { - DBG("Bogus frame ? %d", cam->nb); - goto redo; - } - - DBG("jpeg : %d %d %d %d %d %d %d %d", - jpeg[0], jpeg[1], jpeg[2], jpeg[3], - jpeg[4], jpeg[5], jpeg[6], jpeg[7]); - - return size; -} - - -static ssize_t zr364xx_read(struct file *file, char __user *buf, size_t cnt, - loff_t * ppos) -{ - unsigned long count = cnt; - struct video_device *vdev = video_devdata(file); - struct zr364xx_camera *cam; - - DBG("zr364xx_read: read %d bytes.", (int) count); - - if (vdev == NULL) - return -ENODEV; - cam = video_get_drvdata(vdev); - - if (!buf) - return -EINVAL; - - if (!count) - return -EINVAL; - - /* NoMan Sux ! */ - count = read_frame(cam, 0); - - if (copy_to_user(buf, cam->framebuf, count)) - return -EFAULT; - - return count; -} - - -static int zr364xx_vidioc_querycap(struct file *file, void *priv, - struct v4l2_capability *cap) -{ - memset(cap, 0, sizeof(*cap)); - strcpy(cap->driver, DRIVER_DESC); - cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE; - return 0; -} - -static int zr364xx_vidioc_enum_input(struct file *file, void *priv, - struct v4l2_input *i) -{ - if (i->index != 0) - return -EINVAL; - memset(i, 0, sizeof(*i)); - i->index = 0; - strcpy(i->name, DRIVER_DESC " Camera"); - i->type = V4L2_INPUT_TYPE_CAMERA; - return 0; -} - -static int zr364xx_vidioc_g_input(struct file *file, void *priv, - unsigned int *i) -{ - *i = 0; - return 0; -} - -static int zr364xx_vidioc_s_input(struct file *file, void *priv, - unsigned int i) -{ - if (i != 0) - return -EINVAL; - return 0; -} - -static int zr364xx_vidioc_queryctrl(struct file *file, void *priv, - struct v4l2_queryctrl *c) -{ - struct video_device *vdev = video_devdata(file); - struct zr364xx_camera *cam; - - if (vdev == NULL) - return -ENODEV; - cam = video_get_drvdata(vdev); - - switch (c->id) { - case V4L2_CID_BRIGHTNESS: - c->type = V4L2_CTRL_TYPE_INTEGER; - strcpy(c->name, "Brightness"); - c->minimum = 0; - c->maximum = 127; - c->step = 1; - c->default_value = cam->brightness; - c->flags = 0; - break; - default: - return -EINVAL; - } - return 0; -} - -static int zr364xx_vidioc_s_ctrl(struct file *file, void *priv, - struct v4l2_control *c) -{ - struct video_device *vdev = video_devdata(file); - struct zr364xx_camera *cam; - - if (vdev == NULL) - return -ENODEV; - cam = video_get_drvdata(vdev); - - switch (c->id) { - case V4L2_CID_BRIGHTNESS: - cam->brightness = c->value; - break; - default: - return -EINVAL; - } - return 0; -} - -static int zr364xx_vidioc_g_ctrl(struct file *file, void *priv, - struct v4l2_control *c) -{ - struct video_device *vdev = video_devdata(file); - struct zr364xx_camera *cam; - - if (vdev == NULL) - return -ENODEV; - cam = video_get_drvdata(vdev); - - switch (c->id) { - case V4L2_CID_BRIGHTNESS: - c->value = cam->brightness; - break; - default: - return -EINVAL; - } - return 0; -} - -static int zr364xx_vidioc_enum_fmt_vid_cap(struct file *file, - void *priv, struct v4l2_fmtdesc *f) -{ - if (f->index > 0) - return -EINVAL; - if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - memset(f, 0, sizeof(*f)); - f->index = 0; - f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - f->flags = V4L2_FMT_FLAG_COMPRESSED; - strcpy(f->description, "JPEG"); - f->pixelformat = V4L2_PIX_FMT_JPEG; - return 0; -} - -static int zr364xx_vidioc_try_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_format *f) -{ - struct video_device *vdev = video_devdata(file); - struct zr364xx_camera *cam; - - if (vdev == NULL) - return -ENODEV; - cam = video_get_drvdata(vdev); - - if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - if (f->fmt.pix.pixelformat != V4L2_PIX_FMT_JPEG) - return -EINVAL; - if (f->fmt.pix.field != V4L2_FIELD_ANY && - f->fmt.pix.field != V4L2_FIELD_NONE) - return -EINVAL; - f->fmt.pix.field = V4L2_FIELD_NONE; - f->fmt.pix.width = cam->width; - f->fmt.pix.height = cam->height; - f->fmt.pix.bytesperline = f->fmt.pix.width * 2; - f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline; - f->fmt.pix.colorspace = 0; - f->fmt.pix.priv = 0; - return 0; -} - -static int zr364xx_vidioc_g_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_format *f) -{ - struct video_device *vdev = video_devdata(file); - struct zr364xx_camera *cam; - - if (vdev == NULL) - return -ENODEV; - cam = video_get_drvdata(vdev); - - if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - memset(&f->fmt.pix, 0, sizeof(struct v4l2_pix_format)); - f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - f->fmt.pix.pixelformat = V4L2_PIX_FMT_JPEG; - f->fmt.pix.field = V4L2_FIELD_NONE; - f->fmt.pix.width = cam->width; - f->fmt.pix.height = cam->height; - f->fmt.pix.bytesperline = f->fmt.pix.width * 2; - f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline; - f->fmt.pix.colorspace = 0; - f->fmt.pix.priv = 0; - return 0; -} - -static int zr364xx_vidioc_s_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_format *f) -{ - struct video_device *vdev = video_devdata(file); - struct zr364xx_camera *cam; - - if (vdev == NULL) - return -ENODEV; - cam = video_get_drvdata(vdev); - - if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - if (f->fmt.pix.pixelformat != V4L2_PIX_FMT_JPEG) - return -EINVAL; - if (f->fmt.pix.field != V4L2_FIELD_ANY && - f->fmt.pix.field != V4L2_FIELD_NONE) - return -EINVAL; - f->fmt.pix.field = V4L2_FIELD_NONE; - f->fmt.pix.width = cam->width; - f->fmt.pix.height = cam->height; - f->fmt.pix.bytesperline = f->fmt.pix.width * 2; - f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline; - f->fmt.pix.colorspace = 0; - f->fmt.pix.priv = 0; - DBG("ok!"); - return 0; -} - -static int zr364xx_vidioc_streamon(struct file *file, void *priv, - enum v4l2_buf_type type) -{ - return 0; -} - -static int zr364xx_vidioc_streamoff(struct file *file, void *priv, - enum v4l2_buf_type type) -{ - return 0; -} - - -/* open the camera */ -static int zr364xx_open(struct file *file) -{ - struct video_device *vdev = video_devdata(file); - struct zr364xx_camera *cam = video_get_drvdata(vdev); - struct usb_device *udev = cam->udev; - int i, err; - - DBG("zr364xx_open"); - - mutex_lock(&cam->lock); - - if (cam->users) { - err = -EBUSY; - goto out; - } - - if (!cam->framebuf) { - cam->framebuf = vmalloc_32(MAX_FRAME_SIZE * FRAMES); - if (!cam->framebuf) { - dev_err(&cam->udev->dev, "vmalloc_32 failed!\n"); - err = -ENOMEM; - goto out; - } - } - - for (i = 0; init[cam->method][i].size != -1; i++) { - err = - send_control_msg(udev, 1, init[cam->method][i].value, - 0, init[cam->method][i].bytes, - init[cam->method][i].size); - if (err < 0) { - dev_err(&cam->udev->dev, - "error during open sequence: %d\n", i); - goto out; - } - } - - cam->skip = 2; - cam->users++; - file->private_data = vdev; - - /* Added some delay here, since opening/closing the camera quickly, - * like Ekiga does during its startup, can crash the webcam - */ - mdelay(100); - err = 0; - -out: - mutex_unlock(&cam->lock); - return err; -} - - -/* release the camera */ -static int zr364xx_release(struct file *file) -{ - struct video_device *vdev = video_devdata(file); - struct zr364xx_camera *cam; - struct usb_device *udev; - int i, err; - - DBG("zr364xx_release"); - - if (vdev == NULL) - return -ENODEV; - cam = video_get_drvdata(vdev); - - udev = cam->udev; - - mutex_lock(&cam->lock); - - cam->users--; - file->private_data = NULL; - - for (i = 0; i < 2; i++) { - err = - send_control_msg(udev, 1, init[cam->method][i].value, - 0, init[i][cam->method].bytes, - init[cam->method][i].size); - if (err < 0) { - dev_err(&udev->dev, "error during release sequence\n"); - goto out; - } - } - - /* Added some delay here, since opening/closing the camera quickly, - * like Ekiga does during its startup, can crash the webcam - */ - mdelay(100); - err = 0; - -out: - mutex_unlock(&cam->lock); - return err; -} - - -static int zr364xx_mmap(struct file *file, struct vm_area_struct *vma) -{ - void *pos; - unsigned long start = vma->vm_start; - unsigned long size = vma->vm_end - vma->vm_start; - struct video_device *vdev = video_devdata(file); - struct zr364xx_camera *cam; - - DBG("zr364xx_mmap: %ld\n", size); - - if (vdev == NULL) - return -ENODEV; - cam = video_get_drvdata(vdev); - - pos = cam->framebuf; - while (size > 0) { - if (vm_insert_page(vma, start, vmalloc_to_page(pos))) - return -EAGAIN; - start += PAGE_SIZE; - pos += PAGE_SIZE; - if (size > PAGE_SIZE) - size -= PAGE_SIZE; - else - size = 0; - } - - return 0; -} - - -static const struct v4l2_file_operations zr364xx_fops = { - .owner = THIS_MODULE, - .open = zr364xx_open, - .release = zr364xx_release, - .read = zr364xx_read, - .mmap = zr364xx_mmap, - .ioctl = video_ioctl2, -}; - -static const struct v4l2_ioctl_ops zr364xx_ioctl_ops = { - .vidioc_querycap = zr364xx_vidioc_querycap, - .vidioc_enum_fmt_vid_cap = zr364xx_vidioc_enum_fmt_vid_cap, - .vidioc_try_fmt_vid_cap = zr364xx_vidioc_try_fmt_vid_cap, - .vidioc_s_fmt_vid_cap = zr364xx_vidioc_s_fmt_vid_cap, - .vidioc_g_fmt_vid_cap = zr364xx_vidioc_g_fmt_vid_cap, - .vidioc_enum_input = zr364xx_vidioc_enum_input, - .vidioc_g_input = zr364xx_vidioc_g_input, - .vidioc_s_input = zr364xx_vidioc_s_input, - .vidioc_streamon = zr364xx_vidioc_streamon, - .vidioc_streamoff = zr364xx_vidioc_streamoff, - .vidioc_queryctrl = zr364xx_vidioc_queryctrl, - .vidioc_g_ctrl = zr364xx_vidioc_g_ctrl, - .vidioc_s_ctrl = zr364xx_vidioc_s_ctrl, -}; - -static struct video_device zr364xx_template = { - .name = DRIVER_DESC, - .fops = &zr364xx_fops, - .ioctl_ops = &zr364xx_ioctl_ops, - .release = video_device_release, - .minor = -1, -}; - - - -/*******************/ -/* USB integration */ -/*******************/ - -static int zr364xx_probe(struct usb_interface *intf, - const struct usb_device_id *id) -{ - struct usb_device *udev = interface_to_usbdev(intf); - struct zr364xx_camera *cam = NULL; - int err; - - DBG("probing..."); - - dev_info(&intf->dev, DRIVER_DESC " compatible webcam plugged\n"); - dev_info(&intf->dev, "model %04x:%04x detected\n", - le16_to_cpu(udev->descriptor.idVendor), - le16_to_cpu(udev->descriptor.idProduct)); - - cam = kzalloc(sizeof(struct zr364xx_camera), GFP_KERNEL); - if (cam == NULL) { - dev_err(&udev->dev, "cam: out of memory !\n"); - return -ENOMEM; - } - /* save the init method used by this camera */ - cam->method = id->driver_info; - - cam->vdev = video_device_alloc(); - if (cam->vdev == NULL) { - dev_err(&udev->dev, "cam->vdev: out of memory !\n"); - kfree(cam); - return -ENOMEM; - } - memcpy(cam->vdev, &zr364xx_template, sizeof(zr364xx_template)); - video_set_drvdata(cam->vdev, cam); - if (debug) - cam->vdev->debug = V4L2_DEBUG_IOCTL | V4L2_DEBUG_IOCTL_ARG; - - cam->udev = udev; - - if ((cam->buffer = kmalloc(BUFFER_SIZE, GFP_KERNEL)) == NULL) { - dev_info(&udev->dev, "cam->buffer: out of memory !\n"); - video_device_release(cam->vdev); - kfree(cam); - return -ENODEV; - } - - switch (mode) { - case 1: - dev_info(&udev->dev, "160x120 mode selected\n"); - cam->width = 160; - cam->height = 120; - break; - case 2: - dev_info(&udev->dev, "640x480 mode selected\n"); - cam->width = 640; - cam->height = 480; - break; - default: - dev_info(&udev->dev, "320x240 mode selected\n"); - cam->width = 320; - cam->height = 240; - break; - } - - m0d1[0] = mode; - m1[2].value = 0xf000 + mode; - m2[1].value = 0xf000 + mode; - header2[437] = cam->height / 256; - header2[438] = cam->height % 256; - header2[439] = cam->width / 256; - header2[440] = cam->width % 256; - - cam->nb = 0; - cam->brightness = 64; - mutex_init(&cam->lock); - - err = video_register_device(cam->vdev, VFL_TYPE_GRABBER, -1); - if (err) { - dev_err(&udev->dev, "video_register_device failed\n"); - video_device_release(cam->vdev); - kfree(cam->buffer); - kfree(cam); - return err; - } - - usb_set_intfdata(intf, cam); - - dev_info(&udev->dev, DRIVER_DESC " controlling video device %d\n", - cam->vdev->num); - return 0; -} - - -static void zr364xx_disconnect(struct usb_interface *intf) -{ - struct zr364xx_camera *cam = usb_get_intfdata(intf); - usb_set_intfdata(intf, NULL); - dev_info(&intf->dev, DRIVER_DESC " webcam unplugged\n"); - if (cam->vdev) - video_unregister_device(cam->vdev); - cam->vdev = NULL; - kfree(cam->buffer); - if (cam->framebuf) - vfree(cam->framebuf); - kfree(cam); -} - - - -/**********************/ -/* Module integration */ -/**********************/ - -static struct usb_driver zr364xx_driver = { - .name = "zr364xx", - .probe = zr364xx_probe, - .disconnect = zr364xx_disconnect, - .id_table = device_table -}; - - -static int __init zr364xx_init(void) -{ - int retval; - retval = usb_register(&zr364xx_driver); - if (retval) - printk(KERN_ERR KBUILD_MODNAME ": usb_register failed!\n"); - else - printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_DESC "\n"); - return retval; -} - - -static void __exit zr364xx_exit(void) -{ - printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_DESC " module unloaded\n"); - usb_deregister(&zr364xx_driver); -} - - -module_init(zr364xx_init); -module_exit(zr364xx_exit); - -MODULE_AUTHOR(DRIVER_AUTHOR); -MODULE_DESCRIPTION(DRIVER_DESC); -MODULE_LICENSE("GPL"); |