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path: root/drivers/media/video/usbvision/usbvision-video.c
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Diffstat (limited to 'drivers/media/video/usbvision/usbvision-video.c')
-rw-r--r--drivers/media/video/usbvision/usbvision-video.c1690
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(&reg->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(&reg->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:
- */
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