diff options
Diffstat (limited to 'drivers/media/video/usbvision/usbvision-video.c')
| -rw-r--r-- | drivers/media/video/usbvision/usbvision-video.c | 1690 |
1 files changed, 0 insertions, 1690 deletions
diff --git a/drivers/media/video/usbvision/usbvision-video.c b/drivers/media/video/usbvision/usbvision-video.c deleted file mode 100644 index 9bd8f08..0000000 --- a/drivers/media/video/usbvision/usbvision-video.c +++ /dev/null @@ -1,1690 +0,0 @@ -/* - * USB USBVISION Video device driver 0.9.10 - * - * - * - * Copyright (c) 1999-2005 Joerg Heckenbach <joerg@heckenbach-aw.de> - * - * This module is part of usbvision driver project. - * - * 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., 675 Mass Ave, Cambridge, MA 02139, USA. - * - * Let's call the version 0.... until compression decoding is completely - * implemented. - * - * This driver is written by Jose Ignacio Gijon and Joerg Heckenbach. - * It was based on USB CPiA driver written by Peter Pregler, - * Scott J. Bertin and Johannes Erdfelt - * Ideas are taken from bttv driver by Ralph Metzler, Marcus Metzler & - * Gerd Knorr and zoran 36120/36125 driver by Pauline Middelink - * Updates to driver completed by Dwaine P. Garden - * - * - * TODO: - * - use submit_urb for all setup packets - * - Fix memory settings for nt1004. It is 4 times as big as the - * nt1003 memory. - * - Add audio on endpoint 3 for nt1004 chip. - * Seems impossible, needs a codec interface. Which one? - * - Clean up the driver. - * - optimization for performance. - * - Add Videotext capability (VBI). Working on it..... - * - Check audio for other devices - * - */ - -#include <linux/kernel.h> -#include <linux/list.h> -#include <linux/timer.h> -#include <linux/slab.h> -#include <linux/mm.h> -#include <linux/highmem.h> -#include <linux/vmalloc.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/spinlock.h> -#include <linux/io.h> -#include <linux/videodev2.h> -#include <linux/i2c.h> - -#include <media/saa7115.h> -#include <media/v4l2-common.h> -#include <media/v4l2-ioctl.h> -#include <media/tuner.h> - -#include <linux/workqueue.h> - -#include "usbvision.h" -#include "usbvision-cards.h" - -#define DRIVER_AUTHOR \ - "Joerg Heckenbach <joerg@heckenbach-aw.de>, " \ - "Dwaine Garden <DwaineGarden@rogers.com>" -#define DRIVER_NAME "usbvision" -#define DRIVER_ALIAS "USBVision" -#define DRIVER_DESC "USBVision USB Video Device Driver for Linux" -#define DRIVER_LICENSE "GPL" -#define USBVISION_VERSION_STRING "0.9.11" - -#define ENABLE_HEXDUMP 0 /* Enable if you need it */ - - -#ifdef USBVISION_DEBUG - #define PDEBUG(level, fmt, args...) { \ - if (video_debug & (level)) \ - printk(KERN_INFO KBUILD_MODNAME ":[%s:%d] " fmt, \ - __func__, __LINE__ , ## args); \ - } -#else - #define PDEBUG(level, fmt, args...) do {} while (0) -#endif - -#define DBG_IO (1 << 1) -#define DBG_PROBE (1 << 2) -#define DBG_MMAP (1 << 3) - -/* String operations */ -#define rmspace(str) while (*str == ' ') str++; -#define goto2next(str) while (*str != ' ') str++; while (*str == ' ') str++; - - -/* sequential number of usbvision device */ -static int usbvision_nr; - -static struct usbvision_v4l2_format_st usbvision_v4l2_format[] = { - { 1, 1, 8, V4L2_PIX_FMT_GREY , "GREY" }, - { 1, 2, 16, V4L2_PIX_FMT_RGB565 , "RGB565" }, - { 1, 3, 24, V4L2_PIX_FMT_RGB24 , "RGB24" }, - { 1, 4, 32, V4L2_PIX_FMT_RGB32 , "RGB32" }, - { 1, 2, 16, V4L2_PIX_FMT_RGB555 , "RGB555" }, - { 1, 2, 16, V4L2_PIX_FMT_YUYV , "YUV422" }, - { 1, 2, 12, V4L2_PIX_FMT_YVU420 , "YUV420P" }, /* 1.5 ! */ - { 1, 2, 16, V4L2_PIX_FMT_YUV422P , "YUV422P" } -}; - -/* Function prototypes */ -static void usbvision_release(struct usb_usbvision *usbvision); - -/* Default initialization of device driver parameters */ -/* Set the default format for ISOC endpoint */ -static int isoc_mode = ISOC_MODE_COMPRESS; -/* Set the default Debug Mode of the device driver */ -static int video_debug; -/* Set the default device to power on at startup */ -static int power_on_at_open = 1; -/* Sequential Number of Video Device */ -static int video_nr = -1; -/* Sequential Number of Radio Device */ -static int radio_nr = -1; - -/* Grab parameters for the device driver */ - -/* Showing parameters under SYSFS */ -module_param(isoc_mode, int, 0444); -module_param(video_debug, int, 0444); -module_param(power_on_at_open, int, 0444); -module_param(video_nr, int, 0444); -module_param(radio_nr, int, 0444); - -MODULE_PARM_DESC(isoc_mode, " Set the default format for ISOC endpoint. Default: 0x60 (Compression On)"); -MODULE_PARM_DESC(video_debug, " Set the default Debug Mode of the device driver. Default: 0 (Off)"); -MODULE_PARM_DESC(power_on_at_open, " Set the default device to power on when device is opened. Default: 1 (On)"); -MODULE_PARM_DESC(video_nr, "Set video device number (/dev/videoX). Default: -1 (autodetect)"); -MODULE_PARM_DESC(radio_nr, "Set radio device number (/dev/radioX). Default: -1 (autodetect)"); - - -/* Misc stuff */ -MODULE_AUTHOR(DRIVER_AUTHOR); -MODULE_DESCRIPTION(DRIVER_DESC); -MODULE_LICENSE(DRIVER_LICENSE); -MODULE_VERSION(USBVISION_VERSION_STRING); -MODULE_ALIAS(DRIVER_ALIAS); - - -/*****************************************************************************/ -/* SYSFS Code - Copied from the stv680.c usb module. */ -/* Device information is located at /sys/class/video4linux/video0 */ -/* Device parameters information is located at /sys/module/usbvision */ -/* Device USB Information is located at */ -/* /sys/bus/usb/drivers/USBVision Video Grabber */ -/*****************************************************************************/ - -#define YES_NO(x) ((x) ? "Yes" : "No") - -static inline struct usb_usbvision *cd_to_usbvision(struct device *cd) -{ - struct video_device *vdev = - container_of(cd, struct video_device, dev); - return video_get_drvdata(vdev); -} - -static ssize_t show_version(struct device *cd, - struct device_attribute *attr, char *buf) -{ - return sprintf(buf, "%s\n", USBVISION_VERSION_STRING); -} -static DEVICE_ATTR(version, S_IRUGO, show_version, NULL); - -static ssize_t show_model(struct device *cd, - struct device_attribute *attr, char *buf) -{ - struct video_device *vdev = - container_of(cd, struct video_device, dev); - struct usb_usbvision *usbvision = video_get_drvdata(vdev); - return sprintf(buf, "%s\n", - usbvision_device_data[usbvision->dev_model].model_string); -} -static DEVICE_ATTR(model, S_IRUGO, show_model, NULL); - -static ssize_t show_hue(struct device *cd, - struct device_attribute *attr, char *buf) -{ - struct video_device *vdev = - container_of(cd, struct video_device, dev); - struct usb_usbvision *usbvision = video_get_drvdata(vdev); - struct v4l2_control ctrl; - ctrl.id = V4L2_CID_HUE; - ctrl.value = 0; - if (usbvision->user) - call_all(usbvision, core, g_ctrl, &ctrl); - return sprintf(buf, "%d\n", ctrl.value); -} -static DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL); - -static ssize_t show_contrast(struct device *cd, - struct device_attribute *attr, char *buf) -{ - struct video_device *vdev = - container_of(cd, struct video_device, dev); - struct usb_usbvision *usbvision = video_get_drvdata(vdev); - struct v4l2_control ctrl; - ctrl.id = V4L2_CID_CONTRAST; - ctrl.value = 0; - if (usbvision->user) - call_all(usbvision, core, g_ctrl, &ctrl); - return sprintf(buf, "%d\n", ctrl.value); -} -static DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL); - -static ssize_t show_brightness(struct device *cd, - struct device_attribute *attr, char *buf) -{ - struct video_device *vdev = - container_of(cd, struct video_device, dev); - struct usb_usbvision *usbvision = video_get_drvdata(vdev); - struct v4l2_control ctrl; - ctrl.id = V4L2_CID_BRIGHTNESS; - ctrl.value = 0; - if (usbvision->user) - call_all(usbvision, core, g_ctrl, &ctrl); - return sprintf(buf, "%d\n", ctrl.value); -} -static DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL); - -static ssize_t show_saturation(struct device *cd, - struct device_attribute *attr, char *buf) -{ - struct video_device *vdev = - container_of(cd, struct video_device, dev); - struct usb_usbvision *usbvision = video_get_drvdata(vdev); - struct v4l2_control ctrl; - ctrl.id = V4L2_CID_SATURATION; - ctrl.value = 0; - if (usbvision->user) - call_all(usbvision, core, g_ctrl, &ctrl); - return sprintf(buf, "%d\n", ctrl.value); -} -static DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL); - -static ssize_t show_streaming(struct device *cd, - struct device_attribute *attr, char *buf) -{ - struct video_device *vdev = - container_of(cd, struct video_device, dev); - struct usb_usbvision *usbvision = video_get_drvdata(vdev); - return sprintf(buf, "%s\n", - YES_NO(usbvision->streaming == stream_on ? 1 : 0)); -} -static DEVICE_ATTR(streaming, S_IRUGO, show_streaming, NULL); - -static ssize_t show_compression(struct device *cd, - struct device_attribute *attr, char *buf) -{ - struct video_device *vdev = - container_of(cd, struct video_device, dev); - struct usb_usbvision *usbvision = video_get_drvdata(vdev); - return sprintf(buf, "%s\n", - YES_NO(usbvision->isoc_mode == ISOC_MODE_COMPRESS)); -} -static DEVICE_ATTR(compression, S_IRUGO, show_compression, NULL); - -static ssize_t show_device_bridge(struct device *cd, - struct device_attribute *attr, char *buf) -{ - struct video_device *vdev = - container_of(cd, struct video_device, dev); - struct usb_usbvision *usbvision = video_get_drvdata(vdev); - return sprintf(buf, "%d\n", usbvision->bridge_type); -} -static DEVICE_ATTR(bridge, S_IRUGO, show_device_bridge, NULL); - -static void usbvision_create_sysfs(struct video_device *vdev) -{ - int res; - - if (!vdev) - return; - do { - res = device_create_file(&vdev->dev, &dev_attr_version); - if (res < 0) - break; - res = device_create_file(&vdev->dev, &dev_attr_model); - if (res < 0) - break; - res = device_create_file(&vdev->dev, &dev_attr_hue); - if (res < 0) - break; - res = device_create_file(&vdev->dev, &dev_attr_contrast); - if (res < 0) - break; - res = device_create_file(&vdev->dev, &dev_attr_brightness); - if (res < 0) - break; - res = device_create_file(&vdev->dev, &dev_attr_saturation); - if (res < 0) - break; - res = device_create_file(&vdev->dev, &dev_attr_streaming); - if (res < 0) - break; - res = device_create_file(&vdev->dev, &dev_attr_compression); - if (res < 0) - break; - res = device_create_file(&vdev->dev, &dev_attr_bridge); - if (res >= 0) - return; - } while (0); - - dev_err(&vdev->dev, "%s error: %d\n", __func__, res); -} - -static void usbvision_remove_sysfs(struct video_device *vdev) -{ - if (vdev) { - device_remove_file(&vdev->dev, &dev_attr_version); - device_remove_file(&vdev->dev, &dev_attr_model); - device_remove_file(&vdev->dev, &dev_attr_hue); - device_remove_file(&vdev->dev, &dev_attr_contrast); - device_remove_file(&vdev->dev, &dev_attr_brightness); - device_remove_file(&vdev->dev, &dev_attr_saturation); - device_remove_file(&vdev->dev, &dev_attr_streaming); - device_remove_file(&vdev->dev, &dev_attr_compression); - device_remove_file(&vdev->dev, &dev_attr_bridge); - } -} - -/* - * usbvision_open() - * - * This is part of Video 4 Linux API. The driver can be opened by one - * client only (checks internal counter 'usbvision->user'). The procedure - * then allocates buffers needed for video processing. - * - */ -static int usbvision_v4l2_open(struct file *file) -{ - struct usb_usbvision *usbvision = video_drvdata(file); - int err_code = 0; - - PDEBUG(DBG_IO, "open"); - - usbvision_reset_power_off_timer(usbvision); - - if (usbvision->user) - err_code = -EBUSY; - else { - /* Allocate memory for the scratch ring buffer */ - err_code = usbvision_scratch_alloc(usbvision); - if (isoc_mode == ISOC_MODE_COMPRESS) { - /* Allocate intermediate decompression buffers - only if needed */ - err_code = usbvision_decompress_alloc(usbvision); - } - if (err_code) { - /* Deallocate all buffers if trouble */ - usbvision_scratch_free(usbvision); - usbvision_decompress_free(usbvision); - } - } - - /* If so far no errors then we shall start the camera */ - if (!err_code) { - if (usbvision->power == 0) { - usbvision_power_on(usbvision); - usbvision_i2c_register(usbvision); - } - - /* Send init sequence only once, it's large! */ - if (!usbvision->initialized) { - int setup_ok = 0; - setup_ok = usbvision_setup(usbvision, isoc_mode); - if (setup_ok) - usbvision->initialized = 1; - else - err_code = -EBUSY; - } - - if (!err_code) { - usbvision_begin_streaming(usbvision); - err_code = usbvision_init_isoc(usbvision); - /* device must be initialized before isoc transfer */ - usbvision_muxsel(usbvision, 0); - usbvision->user++; - } else { - if (power_on_at_open) { - usbvision_i2c_unregister(usbvision); - usbvision_power_off(usbvision); - usbvision->initialized = 0; - } - } - } - - /* prepare queues */ - usbvision_empty_framequeues(usbvision); - - PDEBUG(DBG_IO, "success"); - return err_code; -} - -/* - * usbvision_v4l2_close() - * - * This is part of Video 4 Linux API. The procedure - * stops streaming and deallocates all buffers that were earlier - * allocated in usbvision_v4l2_open(). - * - */ -static int usbvision_v4l2_close(struct file *file) -{ - struct usb_usbvision *usbvision = video_drvdata(file); - - PDEBUG(DBG_IO, "close"); - - usbvision_audio_off(usbvision); - usbvision_restart_isoc(usbvision); - usbvision_stop_isoc(usbvision); - - usbvision_decompress_free(usbvision); - usbvision_frames_free(usbvision); - usbvision_empty_framequeues(usbvision); - usbvision_scratch_free(usbvision); - - usbvision->user--; - - if (power_on_at_open) { - /* power off in a little while - to avoid off/on every close/open short sequences */ - usbvision_set_power_off_timer(usbvision); - usbvision->initialized = 0; - } - - if (usbvision->remove_pending) { - printk(KERN_INFO "%s: Final disconnect\n", __func__); - usbvision_release(usbvision); - } - - PDEBUG(DBG_IO, "success"); - return 0; -} - - -/* - * usbvision_ioctl() - * - * This is part of Video 4 Linux API. The procedure handles ioctl() calls. - * - */ -#ifdef CONFIG_VIDEO_ADV_DEBUG -static int vidioc_g_register(struct file *file, void *priv, - struct v4l2_dbg_register *reg) -{ - struct usb_usbvision *usbvision = video_drvdata(file); - int err_code; - - if (!v4l2_chip_match_host(®->match)) - return -EINVAL; - /* NT100x has a 8-bit register space */ - err_code = usbvision_read_reg(usbvision, reg->reg&0xff); - if (err_code < 0) { - dev_err(&usbvision->vdev->dev, - "%s: VIDIOC_DBG_G_REGISTER failed: error %d\n", - __func__, err_code); - return err_code; - } - reg->val = err_code; - reg->size = 1; - return 0; -} - -static int vidioc_s_register(struct file *file, void *priv, - struct v4l2_dbg_register *reg) -{ - struct usb_usbvision *usbvision = video_drvdata(file); - int err_code; - - if (!v4l2_chip_match_host(®->match)) - return -EINVAL; - /* NT100x has a 8-bit register space */ - err_code = usbvision_write_reg(usbvision, reg->reg & 0xff, reg->val); - if (err_code < 0) { - dev_err(&usbvision->vdev->dev, - "%s: VIDIOC_DBG_S_REGISTER failed: error %d\n", - __func__, err_code); - return err_code; - } - return 0; -} -#endif - -static int vidioc_querycap(struct file *file, void *priv, - struct v4l2_capability *vc) -{ - struct usb_usbvision *usbvision = video_drvdata(file); - - strlcpy(vc->driver, "USBVision", sizeof(vc->driver)); - strlcpy(vc->card, - usbvision_device_data[usbvision->dev_model].model_string, - sizeof(vc->card)); - usb_make_path(usbvision->dev, vc->bus_info, sizeof(vc->bus_info)); - vc->capabilities = V4L2_CAP_VIDEO_CAPTURE | - V4L2_CAP_AUDIO | - V4L2_CAP_READWRITE | - V4L2_CAP_STREAMING | - (usbvision->have_tuner ? V4L2_CAP_TUNER : 0); - return 0; -} - -static int vidioc_enum_input(struct file *file, void *priv, - struct v4l2_input *vi) -{ - struct usb_usbvision *usbvision = video_drvdata(file); - int chan; - - if (vi->index >= usbvision->video_inputs) - return -EINVAL; - if (usbvision->have_tuner) - chan = vi->index; - else - chan = vi->index + 1; /* skip Television string*/ - - /* Determine the requested input characteristics - specific for each usbvision card model */ - switch (chan) { - case 0: - if (usbvision_device_data[usbvision->dev_model].video_channels == 4) { - strcpy(vi->name, "White Video Input"); - } else { - strcpy(vi->name, "Television"); - vi->type = V4L2_INPUT_TYPE_TUNER; - vi->audioset = 1; - vi->tuner = chan; - vi->std = USBVISION_NORMS; - } - break; - case 1: - vi->type = V4L2_INPUT_TYPE_CAMERA; - if (usbvision_device_data[usbvision->dev_model].video_channels == 4) - strcpy(vi->name, "Green Video Input"); - else - strcpy(vi->name, "Composite Video Input"); - vi->std = V4L2_STD_PAL; - break; - case 2: - vi->type = V4L2_INPUT_TYPE_CAMERA; - if (usbvision_device_data[usbvision->dev_model].video_channels == 4) - strcpy(vi->name, "Yellow Video Input"); - else - strcpy(vi->name, "S-Video Input"); - vi->std = V4L2_STD_PAL; - break; - case 3: - vi->type = V4L2_INPUT_TYPE_CAMERA; - strcpy(vi->name, "Red Video Input"); - vi->std = V4L2_STD_PAL; - break; - } - return 0; -} - -static int vidioc_g_input(struct file *file, void *priv, unsigned int *input) -{ - struct usb_usbvision *usbvision = video_drvdata(file); - - *input = usbvision->ctl_input; - return 0; -} - -static int vidioc_s_input(struct file *file, void *priv, unsigned int input) -{ - struct usb_usbvision *usbvision = video_drvdata(file); - - if (input >= usbvision->video_inputs) - return -EINVAL; - - usbvision_muxsel(usbvision, input); - usbvision_set_input(usbvision); - usbvision_set_output(usbvision, - usbvision->curwidth, - usbvision->curheight); - return 0; -} - -static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *id) -{ - struct usb_usbvision *usbvision = video_drvdata(file); - - usbvision->tvnorm_id = *id; - - call_all(usbvision, core, s_std, usbvision->tvnorm_id); - /* propagate the change to the decoder */ - usbvision_muxsel(usbvision, usbvision->ctl_input); - - return 0; -} - -static int vidioc_g_tuner(struct file *file, void *priv, - struct v4l2_tuner *vt) -{ - struct usb_usbvision *usbvision = video_drvdata(file); - - if (!usbvision->have_tuner || vt->index) /* Only tuner 0 */ - return -EINVAL; - if (usbvision->radio) { - strcpy(vt->name, "Radio"); - vt->type = V4L2_TUNER_RADIO; - } else { - strcpy(vt->name, "Television"); - } - /* Let clients fill in the remainder of this struct */ - call_all(usbvision, tuner, g_tuner, vt); - - return 0; -} - -static int vidioc_s_tuner(struct file *file, void *priv, - struct v4l2_tuner *vt) -{ - struct usb_usbvision *usbvision = video_drvdata(file); - - /* Only no or one tuner for now */ - if (!usbvision->have_tuner || vt->index) - return -EINVAL; - /* let clients handle this */ - call_all(usbvision, tuner, s_tuner, vt); - - return 0; -} - -static int vidioc_g_frequency(struct file *file, void *priv, - struct v4l2_frequency *freq) -{ - struct usb_usbvision *usbvision = video_drvdata(file); - - freq->tuner = 0; /* Only one tuner */ - if (usbvision->radio) - freq->type = V4L2_TUNER_RADIO; - else - freq->type = V4L2_TUNER_ANALOG_TV; - freq->frequency = usbvision->freq; - - return 0; -} - -static int vidioc_s_frequency(struct file *file, void *priv, - struct v4l2_frequency *freq) -{ - struct usb_usbvision *usbvision = video_drvdata(file); - - /* Only no or one tuner for now */ - if (!usbvision->have_tuner || freq->tuner) - return -EINVAL; - - usbvision->freq = freq->frequency; - call_all(usbvision, tuner, s_frequency, freq); - - return 0; -} - -static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a) -{ - struct usb_usbvision *usbvision = video_drvdata(file); - - if (usbvision->radio) - strcpy(a->name, "Radio"); - else - strcpy(a->name, "TV"); - - return 0; -} - -static int vidioc_s_audio(struct file *file, void *fh, - struct v4l2_audio *a) -{ - if (a->index) - return -EINVAL; - return 0; -} - -static int vidioc_queryctrl(struct file *file, void *priv, - struct v4l2_queryctrl *ctrl) -{ - struct usb_usbvision *usbvision = video_drvdata(file); - - call_all(usbvision, core, queryctrl, ctrl); - - if (!ctrl->type) - return -EINVAL; - - return 0; -} - -static int vidioc_g_ctrl(struct file *file, void *priv, - struct v4l2_control *ctrl) -{ - struct usb_usbvision *usbvision = video_drvdata(file); - - call_all(usbvision, core, g_ctrl, ctrl); - return 0; -} - -static int vidioc_s_ctrl(struct file *file, void *priv, - struct v4l2_control *ctrl) -{ - struct usb_usbvision *usbvision = video_drvdata(file); - - call_all(usbvision, core, s_ctrl, ctrl); - return 0; -} - -static int vidioc_reqbufs(struct file *file, - void *priv, struct v4l2_requestbuffers *vr) -{ - struct usb_usbvision *usbvision = video_drvdata(file); - int ret; - - RESTRICT_TO_RANGE(vr->count, 1, USBVISION_NUMFRAMES); - - /* Check input validity: - the user must do a VIDEO CAPTURE and MMAP method. */ - if (vr->memory != V4L2_MEMORY_MMAP) - return -EINVAL; - - if (usbvision->streaming == stream_on) { - ret = usbvision_stream_interrupt(usbvision); - if (ret) - return ret; - } - - usbvision_frames_free(usbvision); - usbvision_empty_framequeues(usbvision); - vr->count = usbvision_frames_alloc(usbvision, vr->count); - - usbvision->cur_frame = NULL; - - return 0; -} - -static int vidioc_querybuf(struct file *file, - void *priv, struct v4l2_buffer *vb) -{ - struct usb_usbvision *usbvision = video_drvdata(file); - struct usbvision_frame *frame; - - /* FIXME : must control - that buffers are mapped (VIDIOC_REQBUFS has been called) */ - if (vb->index >= usbvision->num_frames) - return -EINVAL; - /* Updating the corresponding frame state */ - vb->flags = 0; - frame = &usbvision->frame[vb->index]; - if (frame->grabstate >= frame_state_ready) - vb->flags |= V4L2_BUF_FLAG_QUEUED; - if (frame->grabstate >= frame_state_done) - vb->flags |= V4L2_BUF_FLAG_DONE; - if (frame->grabstate == frame_state_unused) - vb->flags |= V4L2_BUF_FLAG_MAPPED; - vb->memory = V4L2_MEMORY_MMAP; - - vb->m.offset = vb->index * PAGE_ALIGN(usbvision->max_frame_size); - - vb->memory = V4L2_MEMORY_MMAP; - vb->field = V4L2_FIELD_NONE; - vb->length = usbvision->curwidth * - usbvision->curheight * - usbvision->palette.bytes_per_pixel; - vb->timestamp = usbvision->frame[vb->index].timestamp; - vb->sequence = usbvision->frame[vb->index].sequence; - return 0; -} - -static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *vb) -{ - struct usb_usbvision *usbvision = video_drvdata(file); - struct usbvision_frame *frame; - unsigned long lock_flags; - - /* FIXME : works only on VIDEO_CAPTURE MODE, MMAP. */ - if (vb->index >= usbvision->num_frames) - return -EINVAL; - - frame = &usbvision->frame[vb->index]; - - if (frame->grabstate != frame_state_unused) - return -EAGAIN; - - /* Mark it as ready and enqueue frame */ - frame->grabstate = frame_state_ready; - frame->scanstate = scan_state_scanning; - frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */ - - vb->flags &= ~V4L2_BUF_FLAG_DONE; - - /* set v4l2_format index */ - frame->v4l2_format = usbvision->palette; - - spin_lock_irqsave(&usbvision->queue_lock, lock_flags); - list_add_tail(&usbvision->frame[vb->index].frame, &usbvision->inqueue); - spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); - - return 0; -} - -static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *vb) -{ - struct usb_usbvision *usbvision = video_drvdata(file); - int ret; - struct usbvision_frame *f; - unsigned long lock_flags; - - if (list_empty(&(usbvision->outqueue))) { - if (usbvision->streaming == stream_idle) - return -EINVAL; - ret = wait_event_interruptible - (usbvision->wait_frame, - !list_empty(&(usbvision->outqueue))); - if (ret) - return ret; - } - - spin_lock_irqsave(&usbvision->queue_lock, lock_flags); - f = list_entry(usbvision->outqueue.next, - struct usbvision_frame, frame); - list_del(usbvision->outqueue.next); - spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); - - f->grabstate = frame_state_unused; - - vb->memory = V4L2_MEMORY_MMAP; - vb->flags = V4L2_BUF_FLAG_MAPPED | - V4L2_BUF_FLAG_QUEUED | - V4L2_BUF_FLAG_DONE; - vb->index = f->index; - vb->sequence = f->sequence; - vb->timestamp = f->timestamp; - vb->field = V4L2_FIELD_NONE; - vb->bytesused = f->scanlength; - - return 0; -} - -static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i) -{ - struct usb_usbvision *usbvision = video_drvdata(file); - - usbvision->streaming = stream_on; - call_all(usbvision, video, s_stream, 1); - - return 0; -} - -static int vidioc_streamoff(struct file *file, - void *priv, enum v4l2_buf_type type) -{ - struct usb_usbvision *usbvision = video_drvdata(file); - - if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - - if (usbvision->streaming == stream_on) { - usbvision_stream_interrupt(usbvision); - /* Stop all video streamings */ - call_all(usbvision, video, s_stream, 0); - } - usbvision_empty_framequeues(usbvision); - - return 0; -} - -static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_fmtdesc *vfd) -{ - if (vfd->index >= USBVISION_SUPPORTED_PALETTES - 1) - return -EINVAL; - strcpy(vfd->description, usbvision_v4l2_format[vfd->index].desc); - vfd->pixelformat = usbvision_v4l2_format[vfd->index].format; - return 0; -} - -static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_format *vf) -{ - struct usb_usbvision *usbvision = video_drvdata(file); - vf->fmt.pix.width = usbvision->curwidth; - vf->fmt.pix.height = usbvision->curheight; - vf->fmt.pix.pixelformat = usbvision->palette.format; - vf->fmt.pix.bytesperline = - usbvision->curwidth * usbvision->palette.bytes_per_pixel; - vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline * usbvision->curheight; - vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; - vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */ - - return 0; -} - -static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_format *vf) -{ - struct usb_usbvision *usbvision = video_drvdata(file); - int format_idx; - - /* Find requested format in available ones */ - for (format_idx = 0; format_idx < USBVISION_SUPPORTED_PALETTES; format_idx++) { - if (vf->fmt.pix.pixelformat == - usbvision_v4l2_format[format_idx].format) { - usbvision->palette = usbvision_v4l2_format[format_idx]; - break; - } - } - /* robustness */ - if (format_idx == USBVISION_SUPPORTED_PALETTES) - return -EINVAL; - RESTRICT_TO_RANGE(vf->fmt.pix.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH); - RESTRICT_TO_RANGE(vf->fmt.pix.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT); - - vf->fmt.pix.bytesperline = vf->fmt.pix.width* - usbvision->palette.bytes_per_pixel; - vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*vf->fmt.pix.height; - - return 0; -} - -static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_format *vf) -{ - struct usb_usbvision *usbvision = video_drvdata(file); - int ret; - - ret = vidioc_try_fmt_vid_cap(file, priv, vf); - if (ret) - return ret; - - /* stop io in case it is already in progress */ - if (usbvision->streaming == stream_on) { - ret = usbvision_stream_interrupt(usbvision); - if (ret) - return ret; - } - usbvision_frames_free(usbvision); - usbvision_empty_framequeues(usbvision); - - usbvision->cur_frame = NULL; - - /* by now we are committed to the new data... */ - usbvision_set_output(usbvision, vf->fmt.pix.width, vf->fmt.pix.height); - - return 0; -} - -static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf, - size_t count, loff_t *ppos) -{ - struct usb_usbvision *usbvision = video_drvdata(file); - int noblock = file->f_flags & O_NONBLOCK; - unsigned long lock_flags; - int ret, i; - struct usbvision_frame *frame; - - PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __func__, - (unsigned long)count, noblock); - - if (!USBVISION_IS_OPERATIONAL(usbvision) || (buf == NULL)) - return -EFAULT; - - /* This entry point is compatible with the mmap routines - so that a user can do either VIDIOC_QBUF/VIDIOC_DQBUF - to get frames or call read on the device. */ - if (!usbvision->num_frames) { - /* First, allocate some frames to work with - if this has not been done with VIDIOC_REQBUF */ - usbvision_frames_free(usbvision); - usbvision_empty_framequeues(usbvision); - usbvision_frames_alloc(usbvision, USBVISION_NUMFRAMES); - } - - if (usbvision->streaming != stream_on) { - /* no stream is running, make it running ! */ - usbvision->streaming = stream_on; - call_all(usbvision, video, s_stream, 1); - } - - /* Then, enqueue as many frames as possible - (like a user of VIDIOC_QBUF would do) */ - for (i = 0; i < usbvision->num_frames; i++) { - frame = &usbvision->frame[i]; - if (frame->grabstate == frame_state_unused) { - /* Mark it as ready and enqueue frame */ - frame->grabstate = frame_state_ready; - frame->scanstate = scan_state_scanning; - /* Accumulated in usbvision_parse_data() */ - frame->scanlength = 0; - - /* set v4l2_format index */ - frame->v4l2_format = usbvision->palette; - - spin_lock_irqsave(&usbvision->queue_lock, lock_flags); - list_add_tail(&frame->frame, &usbvision->inqueue); - spin_unlock_irqrestore(&usbvision->queue_lock, - lock_flags); - } - } - - /* Then try to steal a frame (like a VIDIOC_DQBUF would do) */ - if (list_empty(&(usbvision->outqueue))) { - if (noblock) - return -EAGAIN; - - ret = wait_event_interruptible - (usbvision->wait_frame, - !list_empty(&(usbvision->outqueue))); - if (ret) - return ret; - } - - spin_lock_irqsave(&usbvision->queue_lock, lock_flags); - frame = list_entry(usbvision->outqueue.next, - struct usbvision_frame, frame); - list_del(usbvision->outqueue.next); - spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); - - /* An error returns an empty frame */ - if (frame->grabstate == frame_state_error) { - frame->bytes_read = 0; - return 0; - } - - PDEBUG(DBG_IO, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld", - __func__, - frame->index, frame->bytes_read, frame->scanlength); - - /* copy bytes to user space; we allow for partials reads */ - if ((count + frame->bytes_read) > (unsigned long)frame->scanlength) - count = frame->scanlength - frame->bytes_read; - - if (copy_to_user(buf, frame->data + frame->bytes_read, count)) - return -EFAULT; - - frame->bytes_read += count; - PDEBUG(DBG_IO, "%s: {copy} count used=%ld, new bytes_read=%ld", - __func__, - (unsigned long)count, frame->bytes_read); - - /* For now, forget the frame if it has not been read in one shot. */ -/* if (frame->bytes_read >= frame->scanlength) {*/ /* All data has been read */ - frame->bytes_read = 0; - - /* Mark it as available to be used again. */ - frame->grabstate = frame_state_unused; -/* } */ - - return count; -} - -static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma) -{ - unsigned long size = vma->vm_end - vma->vm_start, - start = vma->vm_start; - void *pos; - u32 i; - struct usb_usbvision *usbvision = video_drvdata(file); - - PDEBUG(DBG_MMAP, "mmap"); - - if (!USBVISION_IS_OPERATIONAL(usbvision)) - return -EFAULT; - - if (!(vma->vm_flags & VM_WRITE) || - size != PAGE_ALIGN(usbvision->max_frame_size)) { - return -EINVAL; - } - - for (i = 0; i < usbvision->num_frames; i++) { - if (((PAGE_ALIGN(usbvision->max_frame_size)*i) >> PAGE_SHIFT) == - vma->vm_pgoff) - break; - } - if (i == usbvision->num_frames) { - PDEBUG(DBG_MMAP, - "mmap: user supplied mapping address is out of range"); - return -EINVAL; - } - - /* VM_IO is eventually going to replace PageReserved altogether */ - vma->vm_flags |= VM_IO; - vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */ - - pos = usbvision->frame[i].data; - while (size > 0) { - if (vm_insert_page(vma, start, vmalloc_to_page(pos))) { - PDEBUG(DBG_MMAP, "mmap: vm_insert_page failed"); - return -EAGAIN; - } - start += PAGE_SIZE; - pos += PAGE_SIZE; - size -= PAGE_SIZE; - } - - return 0; -} - - -/* - * Here comes the stuff for radio on usbvision based devices - * - */ -static int usbvision_radio_open(struct file *file) -{ - struct usb_usbvision *usbvision = video_drvdata(file); - int err_code = 0; - - PDEBUG(DBG_IO, "%s:", __func__); - - if (usbvision->user) { - dev_err(&usbvision->rdev->dev, - "%s: Someone tried to open an already opened USBVision Radio!\n", - __func__); - err_code = -EBUSY; - } else { - if (power_on_at_open) { - usbvision_reset_power_off_timer(usbvision); - if (usbvision->power == 0) { - usbvision_power_on(usbvision); - usbvision_i2c_register(usbvision); - } - } - - /* Alternate interface 1 is is the biggest frame size */ - err_code = usbvision_set_alternate(usbvision); - if (err_code < 0) { - usbvision->last_error = err_code; - err_code = -EBUSY; - goto out; - } - - /* If so far no errors then we shall start the radio */ - usbvision->radio = 1; - call_all(usbvision, tuner, s_radio); - usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO); - usbvision->user++; - } - - if (err_code) { - if (power_on_at_open) { - usbvision_i2c_unregister(usbvision); - usbvision_power_off(usbvision); - usbvision->initialized = 0; - } - } -out: - return err_code; -} - - -static int usbvision_radio_close(struct file *file) -{ - struct usb_usbvision *usbvision = video_drvdata(file); - int err_code = 0; - - PDEBUG(DBG_IO, ""); - - /* Set packet size to 0 */ - usbvision->iface_alt = 0; - err_code = usb_set_interface(usbvision->dev, usbvision->iface, - usbvision->iface_alt); - - usbvision_audio_off(usbvision); - usbvision->radio = 0; - usbvision->user--; - - if (power_on_at_open) { - usbvision_set_power_off_timer(usbvision); - usbvision->initialized = 0; - } - - if (usbvision->remove_pending) { - printk(KERN_INFO "%s: Final disconnect\n", __func__); - usbvision_release(usbvision); - } - - PDEBUG(DBG_IO, "success"); - return err_code; -} - -/* Video registration stuff */ - -/* Video template */ -static const struct v4l2_file_operations usbvision_fops = { - .owner = THIS_MODULE, - .open = usbvision_v4l2_open, - .release = usbvision_v4l2_close, - .read = usbvision_v4l2_read, - .mmap = usbvision_v4l2_mmap, - .unlocked_ioctl = video_ioctl2, -/* .poll = video_poll, */ -}; - -static const struct v4l2_ioctl_ops usbvision_ioctl_ops = { - .vidioc_querycap = vidioc_querycap, - .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, - .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, - .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, - .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, - .vidioc_reqbufs = vidioc_reqbufs, - .vidioc_querybuf = vidioc_querybuf, - .vidioc_qbuf = vidioc_qbuf, - .vidioc_dqbuf = vidioc_dqbuf, - .vidioc_s_std = vidioc_s_std, - .vidioc_enum_input = vidioc_enum_input, - .vidioc_g_input = vidioc_g_input, - .vidioc_s_input = vidioc_s_input, - .vidioc_queryctrl = vidioc_queryctrl, - .vidioc_g_audio = vidioc_g_audio, - .vidioc_s_audio = vidioc_s_audio, - .vidioc_g_ctrl = vidioc_g_ctrl, - .vidioc_s_ctrl = vidioc_s_ctrl, - .vidioc_streamon = vidioc_streamon, - .vidioc_streamoff = vidioc_streamoff, - .vidioc_g_tuner = vidioc_g_tuner, - .vidioc_s_tuner = vidioc_s_tuner, - .vidioc_g_frequency = vidioc_g_frequency, - .vidioc_s_frequency = vidioc_s_frequency, -#ifdef CONFIG_VIDEO_ADV_DEBUG - .vidioc_g_register = vidioc_g_register, - .vidioc_s_register = vidioc_s_register, -#endif -}; - -static struct video_device usbvision_video_template = { - .fops = &usbvision_fops, - .ioctl_ops = &usbvision_ioctl_ops, - .name = "usbvision-video", - .release = video_device_release, - .tvnorms = USBVISION_NORMS, - .current_norm = V4L2_STD_PAL -}; - - -/* Radio template */ -static const struct v4l2_file_operations usbvision_radio_fops = { - .owner = THIS_MODULE, - .open = usbvision_radio_open, - .release = usbvision_radio_close, - .unlocked_ioctl = video_ioctl2, -}; - -static const struct v4l2_ioctl_ops usbvision_radio_ioctl_ops = { - .vidioc_querycap = vidioc_querycap, - .vidioc_enum_input = vidioc_enum_input, - .vidioc_g_input = vidioc_g_input, - .vidioc_s_input = vidioc_s_input, - .vidioc_queryctrl = vidioc_queryctrl, - .vidioc_g_audio = vidioc_g_audio, - .vidioc_s_audio = vidioc_s_audio, - .vidioc_g_ctrl = vidioc_g_ctrl, - .vidioc_s_ctrl = vidioc_s_ctrl, - .vidioc_g_tuner = vidioc_g_tuner, - .vidioc_s_tuner = vidioc_s_tuner, - .vidioc_g_frequency = vidioc_g_frequency, - .vidioc_s_frequency = vidioc_s_frequency, -}; - -static struct video_device usbvision_radio_template = { - .fops = &usbvision_radio_fops, - .name = "usbvision-radio", - .release = video_device_release, - .ioctl_ops = &usbvision_radio_ioctl_ops, - - .tvnorms = USBVISION_NORMS, - .current_norm = V4L2_STD_PAL -}; - - -static struct video_device *usbvision_vdev_init(struct usb_usbvision *usbvision, - struct video_device *vdev_template, - char *name) -{ - struct usb_device *usb_dev = usbvision->dev; - struct video_device *vdev; - - if (usb_dev == NULL) { - dev_err(&usbvision->dev->dev, - "%s: usbvision->dev is not set\n", __func__); - return NULL; - } - - vdev = video_device_alloc(); - if (NULL == vdev) - return NULL; - *vdev = *vdev_template; - /* Locking in file operations other than ioctl should be done - by the driver, not the V4L2 core. - This driver needs auditing so that this flag can be removed. */ - set_bit(V4L2_FL_LOCK_ALL_FOPS, &vdev->flags); - vdev->lock = &usbvision->v4l2_lock; - vdev->v4l2_dev = &usbvision->v4l2_dev; - snprintf(vdev->name, sizeof(vdev->name), "%s", name); - video_set_drvdata(vdev, usbvision); - return vdev; -} - -/* unregister video4linux devices */ -static void usbvision_unregister_video(struct usb_usbvision *usbvision) -{ - /* Radio Device: */ - if (usbvision->rdev) { - PDEBUG(DBG_PROBE, "unregister %s [v4l2]", - video_device_node_name(usbvision->rdev)); - if (video_is_registered(usbvision->rdev)) - video_unregister_device(usbvision->rdev); - else - video_device_release(usbvision->rdev); - usbvision->rdev = NULL; - } - - /* Video Device: */ - if (usbvision->vdev) { - PDEBUG(DBG_PROBE, "unregister %s [v4l2]", - video_device_node_name(usbvision->vdev)); - if (video_is_registered(usbvision->vdev)) - video_unregister_device(usbvision->vdev); - else - video_device_release(usbvision->vdev); - usbvision->vdev = NULL; - } -} - -/* register video4linux devices */ -static int __devinit usbvision_register_video(struct usb_usbvision *usbvision) -{ - /* Video Device: */ - usbvision->vdev = usbvision_vdev_init(usbvision, - &usbvision_video_template, - "USBVision Video"); - if (usbvision->vdev == NULL) - goto err_exit; - if (video_register_device(usbvision->vdev, VFL_TYPE_GRABBER, video_nr) < 0) - goto err_exit; - printk(KERN_INFO "USBVision[%d]: registered USBVision Video device %s [v4l2]\n", - usbvision->nr, video_device_node_name(usbvision->vdev)); - - /* Radio Device: */ - if (usbvision_device_data[usbvision->dev_model].radio) { - /* usbvision has radio */ - usbvision->rdev = usbvision_vdev_init(usbvision, - &usbvision_radio_template, - "USBVision Radio"); - if (usbvision->rdev == NULL) - goto err_exit; - if (video_register_device(usbvision->rdev, VFL_TYPE_RADIO, radio_nr) < 0) - goto err_exit; - printk(KERN_INFO "USBVision[%d]: registered USBVision Radio device %s [v4l2]\n", - usbvision->nr, video_device_node_name(usbvision->rdev)); - } - /* all done */ - return 0; - - err_exit: - dev_err(&usbvision->dev->dev, - "USBVision[%d]: video_register_device() failed\n", - usbvision->nr); - usbvision_unregister_video(usbvision); - return -1; -} - -/* - * usbvision_alloc() - * - * This code allocates the struct usb_usbvision. - * It is filled with default values. - * - * Returns NULL on error, a pointer to usb_usbvision else. - * - */ -static struct usb_usbvision *usbvision_alloc(struct usb_device *dev, - struct usb_interface *intf) -{ - struct usb_usbvision *usbvision; - - usbvision = kzalloc(sizeof(struct usb_usbvision), GFP_KERNEL); - if (usbvision == NULL) - return NULL; - - usbvision->dev = dev; - if (v4l2_device_register(&intf->dev, &usbvision->v4l2_dev)) - goto err_free; - - mutex_init(&usbvision->v4l2_lock); - - /* prepare control urb for control messages during interrupts */ - usbvision->ctrl_urb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL); - if (usbvision->ctrl_urb == NULL) - goto err_unreg; - init_waitqueue_head(&usbvision->ctrl_urb_wq); - - usbvision_init_power_off_timer(usbvision); - - return usbvision; - -err_unreg: - v4l2_device_unregister(&usbvision->v4l2_dev); -err_free: - kfree(usbvision); - return NULL; -} - -/* - * usbvision_release() - * - * This code does final release of struct usb_usbvision. This happens - * after the device is disconnected -and- all clients closed their files. - * - */ -static void usbvision_release(struct usb_usbvision *usbvision) -{ - PDEBUG(DBG_PROBE, ""); - - usbvision_reset_power_off_timer(usbvision); - - usbvision->initialized = 0; - - usbvision_remove_sysfs(usbvision->vdev); - usbvision_unregister_video(usbvision); - - usb_free_urb(usbvision->ctrl_urb); - - v4l2_device_unregister(&usbvision->v4l2_dev); - kfree(usbvision); - - PDEBUG(DBG_PROBE, "success"); -} - - -/*********************** usb interface **********************************/ - -static void usbvision_configure_video(struct usb_usbvision *usbvision) -{ - int model; - - if (usbvision == NULL) - return; - - model = usbvision->dev_model; - usbvision->palette = usbvision_v4l2_format[2]; /* V4L2_PIX_FMT_RGB24; */ - - if (usbvision_device_data[usbvision->dev_model].vin_reg2_override) { - usbvision->vin_reg2_preset = - usbvision_device_data[usbvision->dev_model].vin_reg2; - } else { - usbvision->vin_reg2_preset = 0; - } - - usbvision->tvnorm_id = usbvision_device_data[model].video_norm; - - usbvision->video_inputs = usbvision_device_data[model].video_channels; - usbvision->ctl_input = 0; - - /* This should be here to make i2c clients to be able to register */ - /* first switch off audio */ - if (usbvision_device_data[model].audio_channels > 0) - usbvision_audio_off(usbvision); - if (!power_on_at_open) { - /* and then power up the noisy tuner */ - usbvision_power_on(usbvision); - usbvision_i2c_register(usbvision); - } -} - -/* - * usbvision_probe() - * - * This procedure queries device descriptor and accepts the interface - * if it looks like USBVISION video device - * - */ -static int __devinit usbvision_probe(struct usb_interface *intf, - const struct usb_device_id *devid) -{ - struct usb_device *dev = usb_get_dev(interface_to_usbdev(intf)); - struct usb_interface *uif; - __u8 ifnum = intf->altsetting->desc.bInterfaceNumber; - const struct usb_host_interface *interface; - struct usb_usbvision *usbvision = NULL; - const struct usb_endpoint_descriptor *endpoint; - int model, i; - - PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u", - dev->descriptor.idVendor, - dev->descriptor.idProduct, ifnum); - - model = devid->driver_info; - if (model < 0 || model >= usbvision_device_data_size) { - PDEBUG(DBG_PROBE, "model out of bounds %d", model); - return -ENODEV; - } - printk(KERN_INFO "%s: %s found\n", __func__, - usbvision_device_data[model].model_string); - - if (usbvision_device_data[model].interface >= 0) - interface = &dev->actconfig->interface[usbvision_device_data[model].interface]->altsetting[0]; - else - interface = &dev->actconfig->interface[ifnum]->altsetting[0]; - endpoint = &interface->endpoint[1].desc; - if (!usb_endpoint_xfer_isoc(endpoint)) { - dev_err(&intf->dev, "%s: interface %d. has non-ISO endpoint!\n", - __func__, ifnum); - dev_err(&intf->dev, "%s: Endpoint attributes %d", - __func__, endpoint->bmAttributes); - return -ENODEV; - } - if (usb_endpoint_dir_out(endpoint)) { - dev_err(&intf->dev, "%s: interface %d. has ISO OUT endpoint!\n", - __func__, ifnum); - return -ENODEV; - } - - usbvision = usbvision_alloc(dev, intf); - if (usbvision == NULL) { - dev_err(&intf->dev, "%s: couldn't allocate USBVision struct\n", __func__); - return -ENOMEM; - } - - if (dev->descriptor.bNumConfigurations > 1) - usbvision->bridge_type = BRIDGE_NT1004; - else if (model == DAZZLE_DVC_90_REV_1_SECAM) - usbvision->bridge_type = BRIDGE_NT1005; - else - usbvision->bridge_type = BRIDGE_NT1003; - PDEBUG(DBG_PROBE, "bridge_type %d", usbvision->bridge_type); - - /* compute alternate max packet sizes */ - uif = dev->actconfig->interface[0]; - - usbvision->num_alt = uif->num_altsetting; - PDEBUG(DBG_PROBE, "Alternate settings: %i", usbvision->num_alt); - usbvision->alt_max_pkt_size = kmalloc(32 * usbvision->num_alt, GFP_KERNEL); - if (usbvision->alt_max_pkt_size == NULL) { - dev_err(&intf->dev, "usbvision: out of memory!\n"); - return -ENOMEM; - } - - for (i = 0; i < usbvision->num_alt; i++) { - u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc. - wMaxPacketSize); - usbvision->alt_max_pkt_size[i] = - (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1); - PDEBUG(DBG_PROBE, "Alternate setting %i, max size= %i", i, - usbvision->alt_max_pkt_size[i]); - } - - - usbvision->nr = usbvision_nr++; - - usbvision->have_tuner = usbvision_device_data[model].tuner; - if (usbvision->have_tuner) - usbvision->tuner_type = usbvision_device_data[model].tuner_type; - - usbvision->dev_model = model; - usbvision->remove_pending = 0; - usbvision->iface = ifnum; - usbvision->iface_alt = 0; - usbvision->video_endp = endpoint->bEndpointAddress; - usbvision->isoc_packet_size = 0; - usbvision->usb_bandwidth = 0; - usbvision->user = 0; - usbvision->streaming = stream_off; - usbvision_configure_video(usbvision); - usbvision_register_video(usbvision); - - usbvision_create_sysfs(usbvision->vdev); - - PDEBUG(DBG_PROBE, "success"); - return 0; -} - - -/* - * usbvision_disconnect() - * - * This procedure stops all driver activity, deallocates interface-private - * structure (pointed by 'ptr') and after that driver should be removable - * with no ill consequences. - * - */ -static void __devexit usbvision_disconnect(struct usb_interface *intf) -{ - struct usb_usbvision *usbvision = to_usbvision(usb_get_intfdata(intf)); - - PDEBUG(DBG_PROBE, ""); - - if (usbvision == NULL) { - pr_err("%s: usb_get_intfdata() failed\n", __func__); - return; - } - - mutex_lock(&usbvision->v4l2_lock); - - /* At this time we ask to cancel outstanding URBs */ - usbvision_stop_isoc(usbvision); - - v4l2_device_disconnect(&usbvision->v4l2_dev); - - if (usbvision->power) { - usbvision_i2c_unregister(usbvision); - usbvision_power_off(usbvision); - } - usbvision->remove_pending = 1; /* Now all ISO data will be ignored */ - - usb_put_dev(usbvision->dev); - usbvision->dev = NULL; /* USB device is no more */ - - mutex_unlock(&usbvision->v4l2_lock); - - if (usbvision->user) { - printk(KERN_INFO "%s: In use, disconnect pending\n", - __func__); - wake_up_interruptible(&usbvision->wait_frame); - wake_up_interruptible(&usbvision->wait_stream); - } else { - usbvision_release(usbvision); - } - - PDEBUG(DBG_PROBE, "success"); -} - -static struct usb_driver usbvision_driver = { - .name = "usbvision", - .id_table = usbvision_table, - .probe = usbvision_probe, - .disconnect = __devexit_p(usbvision_disconnect), -}; - -/* - * usbvision_init() - * - * This code is run to initialize the driver. - * - */ -static int __init usbvision_init(void) -{ - int err_code; - - PDEBUG(DBG_PROBE, ""); - - PDEBUG(DBG_IO, "IO debugging is enabled [video]"); - PDEBUG(DBG_PROBE, "PROBE debugging is enabled [video]"); - PDEBUG(DBG_MMAP, "MMAP debugging is enabled [video]"); - - /* disable planar mode support unless compression enabled */ - if (isoc_mode != ISOC_MODE_COMPRESS) { - /* FIXME : not the right way to set supported flag */ - usbvision_v4l2_format[6].supported = 0; /* V4L2_PIX_FMT_YVU420 */ - usbvision_v4l2_format[7].supported = 0; /* V4L2_PIX_FMT_YUV422P */ - } - - err_code = usb_register(&usbvision_driver); - - if (err_code == 0) { - printk(KERN_INFO DRIVER_DESC " : " USBVISION_VERSION_STRING "\n"); - PDEBUG(DBG_PROBE, "success"); - } - return err_code; -} - -static void __exit usbvision_exit(void) -{ - PDEBUG(DBG_PROBE, ""); - - usb_deregister(&usbvision_driver); - PDEBUG(DBG_PROBE, "success"); -} - -module_init(usbvision_init); -module_exit(usbvision_exit); - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * --------------------------------------------------------------------------- - * Local variables: - * c-basic-offset: 8 - * End: - */ |
