diff options
Diffstat (limited to 'drivers/media/video/usbvision/usbvision-video.c')
| -rw-r--r-- | drivers/media/video/usbvision/usbvision-video.c | 2088 |
1 files changed, 2088 insertions, 0 deletions
diff --git a/drivers/media/video/usbvision/usbvision-video.c b/drivers/media/video/usbvision/usbvision-video.c new file mode 100644 index 0000000..bdd6301 --- /dev/null +++ b/drivers/media/video/usbvision/usbvision-video.c @@ -0,0 +1,2088 @@ +/* + * USB USBVISION Video device driver 0.9.9 + * + * + * + * 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/version.h> +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/list.h> +#include <linux/timer.h> +#include <linux/slab.h> +#include <linux/mm.h> +#include <linux/utsname.h> +#include <linux/highmem.h> +#include <linux/smp_lock.h> +#include <linux/videodev.h> +#include <linux/vmalloc.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/spinlock.h> +#include <asm/io.h> +#include <linux/videodev2.h> +#include <linux/video_decoder.h> +#include <linux/i2c.h> + +#include <media/saa7115.h> +#include <media/v4l2-common.h> +#include <media/tuner.h> +#include <media/audiochip.h> + +#include <linux/moduleparam.h> +#include <linux/workqueue.h> + +#ifdef CONFIG_KMOD +#include <linux/kmod.h> +#endif + +#include "usbvision.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_DRIVER_VERSION_MAJOR 0 +#define USBVISION_DRIVER_VERSION_MINOR 9 +#define USBVISION_DRIVER_VERSION_PATCHLEVEL 9 +#define USBVISION_DRIVER_VERSION KERNEL_VERSION(USBVISION_DRIVER_VERSION_MAJOR,USBVISION_DRIVER_VERSION_MINOR,USBVISION_DRIVER_VERSION_PATCHLEVEL) +#define USBVISION_VERSION_STRING __stringify(USBVISION_DRIVER_VERSION_MAJOR) "." __stringify(USBVISION_DRIVER_VERSION_MINOR) "." __stringify(USBVISION_DRIVER_VERSION_PATCHLEVEL) + +#define ENABLE_HEXDUMP 0 /* Enable if you need it */ + + +#ifdef USBVISION_DEBUG + #define PDEBUG(level, fmt, args...) \ + if (video_debug & (level)) info("[%s:%d] " fmt, __PRETTY_FUNCTION__, __LINE__ , ## args) +#else + #define PDEBUG(level, fmt, args...) do {} while(0) +#endif + +#define DBG_IOCTL 1<<0 +#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++; + + +static int usbvision_nr = 0; // sequential number of usbvision device + +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" } +}; + +/* supported tv norms */ +static struct usbvision_tvnorm tvnorms[] = { + { + .name = "PAL", + .id = V4L2_STD_PAL, + }, { + .name = "NTSC", + .id = V4L2_STD_NTSC, + }, { + .name = "SECAM", + .id = V4L2_STD_SECAM, + }, { + .name = "PAL-M", + .id = V4L2_STD_PAL_M, + } +}; + +#define TVNORMS ARRAY_SIZE(tvnorms) + +// Function prototypes +static void usbvision_release(struct usb_usbvision *usbvision); + +// Default initalization of device driver parameters +static int isocMode = ISOC_MODE_COMPRESS; // Set the default format for ISOC endpoint +static int video_debug = 0; // Set the default Debug Mode of the device driver +static int PowerOnAtOpen = 1; // Set the default device to power on at startup +static int video_nr = -1; // Sequential Number of Video Device +static int radio_nr = -1; // Sequential Number of Radio Device +static int vbi_nr = -1; // Sequential Number of VBI Device +static char *CustomDevice=NULL; // Set as nothing.... + +// Grab parameters for the device driver + +#if defined(module_param) // Showing parameters under SYSFS +module_param(isocMode, int, 0444); +module_param(video_debug, int, 0444); +module_param(PowerOnAtOpen, int, 0444); +module_param(video_nr, int, 0444); +module_param(radio_nr, int, 0444); +module_param(vbi_nr, int, 0444); +module_param(CustomDevice, charp, 0444); +#else // Old Style +MODULE_PARAM(isocMode, "i"); +MODULE_PARM(video_debug, "i"); // Grab the Debug Mode of the device driver +MODULE_PARM(adjustCompression, "i"); // Grab the compression to be adaptive +MODULE_PARM(PowerOnAtOpen, "i"); // Grab the device to power on at startup +MODULE_PARM(SwitchSVideoInput, "i"); // To help people with Black and White output with using s-video input. Some cables and input device are wired differently. +MODULE_PARM(video_nr, "i"); // video_nr option allows to specify a certain /dev/videoX device (like /dev/video0 or /dev/video1 ...) +MODULE_PARM(radio_nr, "i"); // radio_nr option allows to specify a certain /dev/radioX device (like /dev/radio0 or /dev/radio1 ...) +MODULE_PARM(vbi_nr, "i"); // vbi_nr option allows to specify a certain /dev/vbiX device (like /dev/vbi0 or /dev/vbi1 ...) +MODULE_PARM(CustomDevice, "s"); // .... CustomDevice +#endif + +MODULE_PARM_DESC(isocMode, " 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(PowerOnAtOpen, " 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)"); +MODULE_PARM_DESC(vbi_nr, "Set vbi device number (/dev/vbiX). Default: -1 (autodetect)"); +MODULE_PARM_DESC(CustomDevice, " Define the fine tuning parameters for the device. Default: null"); + + +// 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 class_device *cd) +{ + struct video_device *vdev = container_of(cd, struct video_device, class_dev); + return video_get_drvdata(vdev); +} + +static ssize_t show_version(struct class_device *cd, char *buf) +{ + return sprintf(buf, "%s\n", USBVISION_VERSION_STRING); +} +static CLASS_DEVICE_ATTR(version, S_IRUGO, show_version, NULL); + +static ssize_t show_model(struct class_device *cd, char *buf) +{ + struct video_device *vdev = container_of(cd, struct video_device, class_dev); + struct usb_usbvision *usbvision = video_get_drvdata(vdev); + return sprintf(buf, "%s\n", usbvision_device_data[usbvision->DevModel].ModelString); +} +static CLASS_DEVICE_ATTR(model, S_IRUGO, show_model, NULL); + +static ssize_t show_hue(struct class_device *cd, char *buf) +{ + struct video_device *vdev = container_of(cd, struct video_device, class_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_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl); + return sprintf(buf, "%d\n", ctrl.value >> 8); +} +static CLASS_DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL); + +static ssize_t show_contrast(struct class_device *cd, char *buf) +{ + struct video_device *vdev = container_of(cd, struct video_device, class_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_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl); + return sprintf(buf, "%d\n", ctrl.value >> 8); +} +static CLASS_DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL); + +static ssize_t show_brightness(struct class_device *cd, char *buf) +{ + struct video_device *vdev = container_of(cd, struct video_device, class_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_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl); + return sprintf(buf, "%d\n", ctrl.value >> 8); +} +static CLASS_DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL); + +static ssize_t show_saturation(struct class_device *cd, char *buf) +{ + struct video_device *vdev = container_of(cd, struct video_device, class_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_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl); + return sprintf(buf, "%d\n", ctrl.value >> 8); +} +static CLASS_DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL); + +static ssize_t show_streaming(struct class_device *cd, char *buf) +{ + struct video_device *vdev = container_of(cd, struct video_device, class_dev); + struct usb_usbvision *usbvision = video_get_drvdata(vdev); + return sprintf(buf, "%s\n", YES_NO(usbvision->streaming==Stream_On?1:0)); +} +static CLASS_DEVICE_ATTR(streaming, S_IRUGO, show_streaming, NULL); + +static ssize_t show_compression(struct class_device *cd, char *buf) +{ + struct video_device *vdev = container_of(cd, struct video_device, class_dev); + struct usb_usbvision *usbvision = video_get_drvdata(vdev); + return sprintf(buf, "%s\n", YES_NO(usbvision->isocMode==ISOC_MODE_COMPRESS)); +} +static CLASS_DEVICE_ATTR(compression, S_IRUGO, show_compression, NULL); + +static ssize_t show_device_bridge(struct class_device *cd, char *buf) +{ + struct video_device *vdev = container_of(cd, struct video_device, class_dev); + struct usb_usbvision *usbvision = video_get_drvdata(vdev); + return sprintf(buf, "%d\n", usbvision->bridgeType); +} +static CLASS_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=class_device_create_file(&vdev->class_dev, + &class_device_attr_version); + if (res<0) + break; + res=class_device_create_file(&vdev->class_dev, + &class_device_attr_model); + if (res<0) + break; + res=class_device_create_file(&vdev->class_dev, + &class_device_attr_hue); + if (res<0) + break; + res=class_device_create_file(&vdev->class_dev, + &class_device_attr_contrast); + if (res<0) + break; + res=class_device_create_file(&vdev->class_dev, + &class_device_attr_brightness); + if (res<0) + break; + res=class_device_create_file(&vdev->class_dev, + &class_device_attr_saturation); + if (res<0) + break; + res=class_device_create_file(&vdev->class_dev, + &class_device_attr_streaming); + if (res<0) + break; + res=class_device_create_file(&vdev->class_dev, + &class_device_attr_compression); + if (res<0) + break; + res=class_device_create_file(&vdev->class_dev, + &class_device_attr_bridge); + if (res>=0) + return; + } while (0); + + err("%s error: %d\n", __FUNCTION__, res); +} + +static void usbvision_remove_sysfs(struct video_device *vdev) +{ + if (vdev) { + class_device_remove_file(&vdev->class_dev, + &class_device_attr_version); + class_device_remove_file(&vdev->class_dev, + &class_device_attr_model); + class_device_remove_file(&vdev->class_dev, + &class_device_attr_hue); + class_device_remove_file(&vdev->class_dev, + &class_device_attr_contrast); + class_device_remove_file(&vdev->class_dev, + &class_device_attr_brightness); + class_device_remove_file(&vdev->class_dev, + &class_device_attr_saturation); + class_device_remove_file(&vdev->class_dev, + &class_device_attr_streaming); + class_device_remove_file(&vdev->class_dev, + &class_device_attr_compression); + class_device_remove_file(&vdev->class_dev, + &class_device_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 inode *inode, struct file *file) +{ + struct video_device *dev = video_devdata(file); + struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); + int errCode = 0; + + PDEBUG(DBG_IO, "open"); + + + usbvision_reset_powerOffTimer(usbvision); + + if (usbvision->user) + errCode = -EBUSY; + else { + /* Allocate memory for the frame buffers */ + errCode = usbvision_frames_alloc(usbvision); + if(!errCode) { + /* Allocate memory for the scratch ring buffer */ + errCode = usbvision_scratch_alloc(usbvision); + if ((!errCode) && (isocMode==ISOC_MODE_COMPRESS)) { + /* Allocate intermediate decompression buffers only if needed */ + errCode = usbvision_decompress_alloc(usbvision); + } + } + if (errCode) { + /* Deallocate all buffers if trouble */ + usbvision_frames_free(usbvision); + usbvision_scratch_free(usbvision); + usbvision_decompress_free(usbvision); + } + } + + /* If so far no errors then we shall start the camera */ + if (!errCode) { + down(&usbvision->lock); + if (usbvision->power == 0) { + usbvision_power_on(usbvision); + usbvision_init_i2c(usbvision); + } + + /* Send init sequence only once, it's large! */ + if (!usbvision->initialized) { + int setup_ok = 0; + setup_ok = usbvision_setup(usbvision,isocMode); + if (setup_ok) + usbvision->initialized = 1; + else + errCode = -EBUSY; + } + + if (!errCode) { + usbvision_begin_streaming(usbvision); + errCode = usbvision_init_isoc(usbvision); + /* device needs to be initialized before isoc transfer */ + usbvision_muxsel(usbvision,0); + usbvision->user++; + } + else { + if (PowerOnAtOpen) { + usbvision_i2c_usb_del_bus(&usbvision->i2c_adap); + usbvision_power_off(usbvision); + usbvision->initialized = 0; + } + } + up(&usbvision->lock); + } + + if (errCode) { + } + + /* prepare queues */ + usbvision_empty_framequeues(usbvision); + + PDEBUG(DBG_IO, "success"); + return errCode; +} + +/* + * 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 inode *inode, struct file *file) +{ + struct video_device *dev = video_devdata(file); + struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); + + PDEBUG(DBG_IO, "close"); + down(&usbvision->lock); + + usbvision_audio_off(usbvision); + usbvision_restart_isoc(usbvision); + usbvision_stop_isoc(usbvision); + + usbvision_decompress_free(usbvision); + usbvision_frames_free(usbvision); + usbvision_scratch_free(usbvision); + + usbvision->user--; + + if (PowerOnAtOpen) { + /* power off in a little while to avoid off/on every close/open short sequences */ + usbvision_set_powerOffTimer(usbvision); + usbvision->initialized = 0; + } + + up(&usbvision->lock); + + if (usbvision->remove_pending) { + info("%s: Final disconnect", __FUNCTION__); + usbvision_release(usbvision); + } + + PDEBUG(DBG_IO, "success"); + + + return 0; +} + + +/* + * usbvision_ioctl() + * + * This is part of Video 4 Linux API. The procedure handles ioctl() calls. + * + */ +static int usbvision_v4l2_do_ioctl(struct inode *inode, struct file *file, + unsigned int cmd, void *arg) +{ + struct video_device *dev = video_devdata(file); + struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); + + if (!USBVISION_IS_OPERATIONAL(usbvision)) + return -EFAULT; + + switch (cmd) { + +#ifdef CONFIG_VIDEO_ADV_DEBUG + /* ioctls to allow direct acces to the NT100x registers */ + case VIDIOC_INT_G_REGISTER: + { + struct v4l2_register *reg = arg; + int errCode; + + if (reg->i2c_id != 0) + return -EINVAL; + /* NT100x has a 8-bit register space */ + errCode = usbvision_read_reg(usbvision, reg->reg&0xff); + if (errCode < 0) { + err("%s: VIDIOC_INT_G_REGISTER failed: error %d", __FUNCTION__, errCode); + } + else { + reg->val=(unsigned char)errCode; + PDEBUG(DBG_IOCTL, "VIDIOC_INT_G_REGISTER reg=0x%02X, value=0x%02X", + (unsigned int)reg->reg, reg->val); + errCode = 0; // No error + } + return errCode; + } + case VIDIOC_INT_S_REGISTER: + { + struct v4l2_register *reg = arg; + int errCode; + + if (reg->i2c_id != 0) + return -EINVAL; + if (!capable(CAP_SYS_ADMIN)) + return -EPERM; + errCode = usbvision_write_reg(usbvision, reg->reg&0xff, reg->val); + if (errCode < 0) { + err("%s: VIDIOC_INT_S_REGISTER failed: error %d", __FUNCTION__, errCode); + } + else { + PDEBUG(DBG_IOCTL, "VIDIOC_INT_S_REGISTER reg=0x%02X, value=0x%02X", + (unsigned int)reg->reg, reg->val); + errCode = 0; + } + return 0; + } +#endif + case VIDIOC_QUERYCAP: + { + struct v4l2_capability *vc=arg; + + memset(vc, 0, sizeof(*vc)); + strlcpy(vc->driver, "USBVision", sizeof(vc->driver)); + strlcpy(vc->card, usbvision_device_data[usbvision->DevModel].ModelString, + sizeof(vc->card)); + strlcpy(vc->bus_info, usbvision->dev->dev.bus_id, + sizeof(vc->bus_info)); + vc->version = USBVISION_DRIVER_VERSION; + vc->capabilities = V4L2_CAP_VIDEO_CAPTURE | + V4L2_CAP_AUDIO | + V4L2_CAP_READWRITE | + V4L2_CAP_STREAMING | + (usbvision->have_tuner ? V4L2_CAP_TUNER : 0); + PDEBUG(DBG_IOCTL, "VIDIOC_QUERYCAP"); + return 0; + } + case VIDIOC_ENUMINPUT: + { + struct v4l2_input *vi = arg; + int chan; + + if ((vi->index >= usbvision->video_inputs) || (vi->index < 0) ) + return -EINVAL; + if (usbvision->have_tuner) { + chan = vi->index; + } + else { + chan = vi->index + 1; //skip Television string + } + switch(chan) { + case 0: + if (usbvision_device_data[usbvision->DevModel].VideoChannels == 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 = V4L2_STD_PAL | V4L2_STD_NTSC | V4L2_STD_SECAM; + } + break; + case 1: + vi->type = V4L2_INPUT_TYPE_CAMERA; + if (usbvision_device_data[usbvision->DevModel].VideoChannels == 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->DevModel].VideoChannels == 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; + } + PDEBUG(DBG_IOCTL, "VIDIOC_ENUMINPUT name=%s:%d tuners=%d type=%d norm=%x", + vi->name, vi->index, vi->tuner,vi->type,(int)vi->std); + return 0; + } + case VIDIOC_ENUMSTD: + { + struct v4l2_standard *e = arg; + unsigned int i; + int ret; + + i = e->index; + if (i >= TVNORMS) + return -EINVAL; + ret = v4l2_video_std_construct(e, tvnorms[e->index].id, + tvnorms[e->index].name); + e->index = i; + if (ret < 0) + return ret; + return 0; + } + case VIDIOC_G_INPUT: + { + int *input = arg; + *input = usbvision->ctl_input; + return 0; + } + case VIDIOC_S_INPUT: + { + int *input = arg; + if ((*input >= usbvision->video_inputs) || (*input < 0) ) + return -EINVAL; + usbvision->ctl_input = *input; + + down(&usbvision->lock); + usbvision_muxsel(usbvision, usbvision->ctl_input); + usbvision_set_input(usbvision); + usbvision_set_output(usbvision, usbvision->curwidth, usbvision->curheight); + up(&usbvision->lock); + return 0; + } + case VIDIOC_G_STD: + { + v4l2_std_id *id = arg; + + *id = usbvision->tvnorm->id; + + PDEBUG(DBG_IOCTL, "VIDIOC_G_STD std_id=%s", usbvision->tvnorm->name); + return 0; + } + case VIDIOC_S_STD: + { + v4l2_std_id *id = arg; + unsigned int i; + + for (i = 0; i < TVNORMS; i++) + if (*id == tvnorms[i].id) + break; + if (i == TVNORMS) + for (i = 0; i < TVNORMS; i++) + if (*id & tvnorms[i].id) + break; + if (i == TVNORMS) + return -EINVAL; + + down(&usbvision->lock); + usbvision->tvnorm = &tvnorms[i]; + + call_i2c_clients(usbvision, VIDIOC_S_STD, + &usbvision->tvnorm->id); + + up(&usbvision->lock); + + PDEBUG(DBG_IOCTL, "VIDIOC_S_STD std_id=%s", usbvision->tvnorm->name); + return 0; + } + case VIDIOC_G_TUNER: + { + struct v4l2_tuner *vt = arg; + + if (!usbvision->have_tuner || vt->index) // Only tuner 0 + return -EINVAL; + strcpy(vt->name, "Television"); + /* Let clients fill in the remainder of this struct */ + call_i2c_clients(usbvision,VIDIOC_G_TUNER,vt); + + PDEBUG(DBG_IOCTL, "VIDIOC_G_TUNER signal=%x, afc=%x",vt->signal,vt->afc); + return 0; + } + case VIDIOC_S_TUNER: + { + struct v4l2_tuner *vt = arg; + + // Only no or one tuner for now + if (!usbvision->have_tuner || vt->index) + return -EINVAL; + /* let clients handle this */ + call_i2c_clients(usbvision,VIDIOC_S_TUNER,vt); + + PDEBUG(DBG_IOCTL, "VIDIOC_S_TUNER"); + return 0; + } + case VIDIOC_G_FREQUENCY: + { + struct v4l2_frequency *freq = arg; + + freq->tuner = 0; // Only one tuner + freq->type = V4L2_TUNER_ANALOG_TV; + freq->frequency = usbvision->freq; + PDEBUG(DBG_IOCTL, "VIDIOC_G_FREQUENCY freq=0x%X", (unsigned)freq->frequency); + return 0; + } + case VIDIOC_S_FREQUENCY: + { + struct v4l2_frequency *freq = arg; + + // Only no or one tuner for now + if (!usbvision->have_tuner || freq->tuner) + return -EINVAL; + + usbvision->freq = freq->frequency; + call_i2c_clients(usbvision, cmd, freq); + PDEBUG(DBG_IOCTL, "VIDIOC_S_FREQUENCY freq=0x%X", (unsigned)freq->frequency); + return 0; + } + case VIDIOC_G_AUDIO: + { + struct v4l2_audio *v = arg; + memset(v,0, sizeof(v)); + strcpy(v->name, "TV"); + PDEBUG(DBG_IOCTL, "VIDIOC_G_AUDIO"); + return 0; + } + case VIDIOC_S_AUDIO: + { + struct v4l2_audio *v = arg; + if(v->index) { + return -EINVAL; + } + PDEBUG(DBG_IOCTL, "VIDIOC_S_AUDIO"); + return 0; + } + case VIDIOC_QUERYCTRL: + { + struct v4l2_queryctrl *ctrl = arg; + int id=ctrl->id; + + memset(ctrl,0,sizeof(*ctrl)); + ctrl->id=id; + + call_i2c_clients(usbvision, cmd, arg); + + if (ctrl->type) + return 0; + else + return -EINVAL; + + PDEBUG(DBG_IOCTL,"VIDIOC_QUERYCTRL id=%x value=%x",ctrl->id,ctrl->type); + } + case VIDIOC_G_CTRL: + { + struct v4l2_control *ctrl = arg; + PDEBUG(DBG_IOCTL,"VIDIOC_G_CTRL id=%x value=%x",ctrl->id,ctrl->value); + call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl); + return 0; + } + case VIDIOC_S_CTRL: + { + struct v4l2_control *ctrl = arg; + + PDEBUG(DBG_IOCTL, "VIDIOC_S_CTRL id=%x value=%x",ctrl->id,ctrl->value); + call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl); + return 0; + } + case VIDIOC_REQBUFS: + { + struct v4l2_requestbuffers *vr = arg; + 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->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) || + (vr->memory != V4L2_MEMORY_MMAP)) + return -EINVAL; + + if(usbvision->streaming == Stream_On) { + if ((ret = usbvision_stream_interrupt(usbvision))) + return ret; + } + + usbvision_empty_framequeues(usbvision); + + usbvision->curFrame = NULL; + + PDEBUG(DBG_IOCTL, "VIDIOC_REQBUFS count=%d",vr->count); + return 0; + } + case VIDIOC_QUERYBUF: + { + struct v4l2_buffer *vb = arg; + struct usbvision_frame *frame; + + // FIXME : must control that buffers are mapped (VIDIOC_REQBUFS has been called) + + if(vb->type != V4L2_CAP_VIDEO_CAPTURE) { + return -EINVAL; + } + if(vb->index>=USBVISION_NUMFRAMES) { + return -EINVAL; + } + // Updating the corresponding frame state + vb->flags = 0; + frame = &usbvision->frame[vb->index]; + if(frame->grabstate >= FrameState_Ready) + vb->flags |= V4L2_BUF_FLAG_QUEUED; + if(frame->grabstate >= FrameState_Done) + vb->flags |= V4L2_BUF_FLAG_DONE; + if(frame->grabstate == FrameState_Unused) + vb->flags |= V4L2_BUF_FLAG_MAPPED; + vb->memory = V4L2_MEMORY_MMAP; + + vb->m.offset = vb->index*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; + } + case VIDIOC_QBUF: + { + struct v4l2_buffer *vb = arg; + struct usbvision_frame *frame; + unsigned long lock_flags; + + // FIXME : works only on VIDEO_CAPTURE MODE, MMAP. + if(vb->type != V4L2_CAP_VIDEO_CAPTURE) { + return -EINVAL; + } + if(vb->index>=USBVISION_NUMFRAMES) { + return -EINVAL; + } + + frame = &usbvision->frame[vb->index]; + + if (frame->grabstate != FrameState_Unused) { + return -EAGAIN; + } + + /* Mark it as ready and enqueue frame */ + frame->grabstate = FrameState_Ready; + frame->scanstate = ScanState_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); + + PDEBUG(DBG_IOCTL, "VIDIOC_QBUF frame #%d",vb->index); + return 0; + } + case VIDIOC_DQBUF: + { + struct v4l2_buffer *vb = arg; + int ret; + struct usbvision_frame *f; + unsigned long lock_flags; + + if (vb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + 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 = FrameState_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; + } + case VIDIOC_STREAMON: + { + int b=V4L2_BUF_TYPE_VIDEO_CAPTURE; + + usbvision->streaming = Stream_On; + + call_i2c_clients(usbvision,VIDIOC_STREAMON , &b); + + PDEBUG(DBG_IOCTL, "VIDIOC_STREAMON"); + + return 0; + } + case VIDIOC_STREAMOFF: + { + int *type = arg; + int b=V4L2_BUF_TYPE_VIDEO_CAPTURE; + + if (*type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + if(usbvision->streaming == Stream_On) { + usbvision_stream_interrupt(usbvision); + // Stop all video streamings + call_i2c_clients(usbvision,VIDIOC_STREAMOFF , &b); + } + usbvision_empty_framequeues(usbvision); + + PDEBUG(DBG_IOCTL, "VIDIOC_STREAMOFF"); + return 0; + } + case VIDIOC_ENUM_FMT: + { + struct v4l2_fmtdesc *vfd = arg; + + if(vfd->index>=USBVISION_SUPPORTED_PALETTES-1) { + return -EINVAL; + } + vfd->flags = 0; + vfd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + strcpy(vfd->description,usbvision_v4l2_format[vfd->index].desc); + vfd->pixelformat = usbvision_v4l2_format[vfd->index].format; + memset(vfd->reserved, 0, sizeof(vfd->reserved)); + return 0; + } + case VIDIOC_G_FMT: + { + struct v4l2_format *vf = arg; + + switch (vf->type) { + case V4L2_BUF_TYPE_VIDEO_CAPTURE: + { + 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 */ + PDEBUG(DBG_IOCTL, "VIDIOC_G_FMT w=%d, h=%d, format=%s", + vf->fmt.pix.width, vf->fmt.pix.height,usbvision->palette.desc); + return 0; + } + default: + PDEBUG(DBG_IOCTL, "VIDIOC_G_FMT invalid type %d",vf->type); + return -EINVAL; + } + return 0; + } + case VIDIOC_TRY_FMT: + case VIDIOC_S_FMT: + { + struct v4l2_format *vf = arg; + int formatIdx,ret; + + switch(vf->type) { + case V4L2_BUF_TYPE_VIDEO_CAPTURE: + { + /* Find requested format in available ones */ + for(formatIdx=0;formatIdx<USBVISION_SUPPORTED_PALETTES;formatIdx++) { + if(vf->fmt.pix.pixelformat == usbvision_v4l2_format[formatIdx].format) { + usbvision->palette = usbvision_v4l2_format[formatIdx]; + break; + } + } + /* robustness */ + if(formatIdx == 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; + + if(cmd == VIDIOC_TRY_FMT) { + PDEBUG(DBG_IOCTL, "VIDIOC_TRY_FMT grabdisplay w=%d, h=%d, format=%s", + vf->fmt.pix.width, vf->fmt.pix.height,usbvision->palette.desc); + return 0; + } + + /* stop io in case it is already in progress */ + if(usbvision->streaming == Stream_On) { + if ((ret = usbvision_stream_interrupt(usbvision))) + return ret; + } + usbvision_empty_framequeues(usbvision); + + usbvision->curFrame = NULL; + + // by now we are committed to the new data... + down(&usbvision->lock); + usbvision_set_output(usbvision, vf->fmt.pix.width, vf->fmt.pix.height); + up(&usbvision->lock); + + PDEBUG(DBG_IOCTL, "VIDIOC_S_FMT grabdisplay w=%d, h=%d, format=%s", + vf->fmt.pix.width, vf->fmt.pix.height,usbvision->palette.desc); + return 0; + } + default: + return -EINVAL; + } + } + default: + return -ENOIOCTLCMD; + } + return 0; +} + +static int usbvision_v4l2_ioctl(struct inode *inode, struct file *file, + unsigned int cmd, unsigned long arg) +{ + return video_usercopy(inode, file, cmd, arg, usbvision_v4l2_do_ioctl); +} + + +static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf, + size_t count, loff_t *ppos) +{ + struct video_device *dev = video_devdata(file); + struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); + 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", __FUNCTION__, (unsigned long)count, noblock); + + if (!USBVISION_IS_OPERATIONAL(usbvision) || (buf == NULL)) + return -EFAULT; + + /* no stream is running, make it running ! */ + usbvision->streaming = Stream_On; + call_i2c_clients(usbvision,VIDIOC_STREAMON , NULL); + + /* First, enqueue as many frames as possible (like a user of VIDIOC_QBUF would do) */ + for(i=0;i<USBVISION_NUMFRAMES;i++) { + frame = &usbvision->frame[i]; + if(frame->grabstate == FrameState_Unused) { + /* Mark it as ready and enqueue frame */ + frame->grabstate = FrameState_Ready; + frame->scanstate = ScanState_Scanning; + frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */ + + /* 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 == FrameState_Error) { + frame->bytes_read = 0; + return 0; + } + + PDEBUG(DBG_IO, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld", __FUNCTION__, + 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", __FUNCTION__, + (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 = FrameState_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 video_device *dev = video_devdata(file); + struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); + + down(&usbvision->lock); + + if (!USBVISION_IS_OPERATIONAL(usbvision)) { + up(&usbvision->lock); + return -EFAULT; + } + + if (!(vma->vm_flags & VM_WRITE) || + size != PAGE_ALIGN(usbvision->curwidth*usbvision->curheight*usbvision->palette.bytes_per_pixel)) { + up(&usbvision->lock); + return -EINVAL; + } + + for (i = 0; i < USBVISION_NUMFRAMES; i++) { + if (((usbvision->max_frame_size*i) >> PAGE_SHIFT) == vma->vm_pgoff) + break; + } + if (i == USBVISION_NUMFRAMES) { + PDEBUG(DBG_MMAP, "mmap: user supplied mapping address is out of range"); + up(&usbvision->lock); + 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"); + up(&usbvision->lock); + return -EAGAIN; + } + start += PAGE_SIZE; + pos += PAGE_SIZE; + size -= PAGE_SIZE; + } + + up(&usbvision->lock); + return 0; +} + + +/* + * Here comes the stuff for radio on usbvision based devices + * + */ +static int usbvision_radio_open(struct inode *inode, struct file *file) +{ + struct video_device *dev = video_devdata(file); + struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); + struct v4l2_frequency freq; + int errCode = 0; + + PDEBUG(DBG_IO, "%s:", __FUNCTION__); + + down(&usbvision->lock); + + if (usbvision->user) { + err("%s: Someone tried to open an already opened USBVision Radio!", __FUNCTION__); + errCode = -EBUSY; + } + else { + if(PowerOnAtOpen) { + usbvision_reset_powerOffTimer(usbvision); + if (usbvision->power == 0) { + usbvision_power_on(usbvision); + usbvision_init_i2c(usbvision); + } + } + + // If so far no errors then we shall start the radio + usbvision->radio = 1; + call_i2c_clients(usbvision,AUDC_SET_RADIO,&usbvision->tuner_type); + freq.frequency = 1517; //SWR3 @ 94.8MHz + call_i2c_clients(usbvision, VIDIOC_S_FREQUENCY, &freq); + usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO); + usbvision->user++; + } + + if (errCode) { + if (PowerOnAtOpen) { + usbvision_i2c_usb_del_bus(&usbvision->i2c_adap); + usbvision_power_off(usbvision); + usbvision->initialized = 0; + } + } + up(&usbvision->lock); + return errCode; +} + + +static int usbvision_radio_close(struct inode *inode, struct file *file) +{ + struct video_device *dev = video_devdata(file); + struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); + int errCode = 0; + + PDEBUG(DBG_IO, ""); + + down(&usbvision->lock); + + usbvision_audio_off(usbvision); + usbvision->radio=0; + usbvision->user--; + + if (PowerOnAtOpen) { + usbvision_set_powerOffTimer(usbvision); + usbvision->initialized = 0; + } + + up(&usbvision->lock); + + if (usbvision->remove_pending) { + info("%s: Final disconnect", __FUNCTION__); + usbvision_release(usbvision); + } + + + PDEBUG(DBG_IO, "success"); + + return errCode; +} + +static int usbvision_do_radio_ioctl(struct inode *inode, struct file *file, + unsigned int cmd, void *arg) +{ + struct video_device *dev = video_devdata(file); + struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); + + if (!USBVISION_IS_OPERATIONAL(usbvision)) + return -EIO; + + switch (cmd) { + case VIDIOC_QUERYCAP: + { + struct v4l2_capability *vc=arg; + + memset(vc, 0, sizeof(*vc)); + strlcpy(vc->driver, "USBVision", sizeof(vc->driver)); + strlcpy(vc->card, usbvision_device_data[usbvision->DevModel].ModelString, + sizeof(vc->card)); + strlcpy(vc->bus_info, usbvision->dev->dev.bus_id, + sizeof(vc->bus_info)); + vc->version = USBVISION_DRIVER_VERSION; + vc->capabilities = (usbvision->have_tuner ? V4L2_CAP_TUNER : 0); + PDEBUG(DBG_IO, "VIDIOC_QUERYCAP"); + return 0; + } + case VIDIOC_QUERYCTRL: + { + struct v4l2_queryctrl *ctrl = arg; + int id=ctrl->id; + + memset(ctrl,0,sizeof(*ctrl)); + ctrl->id=id; + + call_i2c_clients(usbvision, cmd, arg); + PDEBUG(DBG_IO,"VIDIOC_QUERYCTRL id=%x value=%x",ctrl->id,ctrl->type); + + if (ctrl->type) + return 0; + else + return -EINVAL; + + } + case VIDIOC_G_CTRL: + { + struct v4l2_control *ctrl = arg; + + call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl); + PDEBUG(DBG_IO,"VIDIOC_G_CTRL id=%x value=%x",ctrl->id,ctrl->value); + return 0; + } + case VIDIOC_S_CTRL: + { + struct v4l2_control *ctrl = arg; + + call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl); + PDEBUG(DBG_IO, "VIDIOC_S_CTRL id=%x value=%x",ctrl->id,ctrl->value); + return 0; + } + case VIDIOC_G_TUNER: + { + struct v4l2_tuner *t = arg; + + if (t->index > 0) + return -EINVAL; + + memset(t,0,sizeof(*t)); + strcpy(t->name, "Radio"); + t->type = V4L2_TUNER_RADIO; + + /* Let clients fill in the remainder of this struct */ + call_i2c_clients(usbvision,VIDIOC_G_TUNER,t); + PDEBUG(DBG_IO, "VIDIOC_G_TUNER signal=%x, afc=%x",t->signal,t->afc); + return 0; + } + case VIDIOC_S_TUNER: + { + struct v4l2_tuner *vt = arg; + + // Only no or one tuner for now + if (!usbvision->have_tuner || vt->index) + return -EINVAL; + /* let clients handle this */ + call_i2c_clients(usbvision,VIDIOC_S_TUNER,vt); + + PDEBUG(DBG_IO, "VIDIOC_S_TUNER"); + return 0; + } + case VIDIOC_G_AUDIO: + { + struct v4l2_audio *a = arg; + + memset(a,0,sizeof(*a)); + strcpy(a->name,"Radio"); + PDEBUG(DBG_IO, "VIDIOC_G_AUDIO"); + return 0; + } + case VIDIOC_S_AUDIO: + case VIDIOC_S_INPUT: + case VIDIOC_S_STD: + return 0; + + case VIDIOC_G_FREQUENCY: + { + struct v4l2_frequency *f = arg; + + memset(f,0,sizeof(*f)); + + f->type = V4L2_TUNER_RADIO; + f->frequency = usbvision->freq; + call_i2c_clients(usbvision, cmd, f); + PDEBUG(DBG_IO, "VIDIOC_G_FREQUENCY freq=0x%X", (unsigned)f->frequency); + + return 0; + } + case VIDIOC_S_FREQUENCY: + { + struct v4l2_frequency *f = arg; + + if (f->tuner != 0) + return -EINVAL; + usbvision->freq = f->frequency; + call_i2c_clients(usbvision, cmd, f); + PDEBUG(DBG_IO, "VIDIOC_S_FREQUENCY freq=0x%X", (unsigned)f->frequency); + + return 0; + } + default: + { + PDEBUG(DBG_IO, "%s: Unknown command %x", __FUNCTION__, cmd); + return -ENOIOCTLCMD; + } + } + return 0; +} + + +static int usbvision_radio_ioctl(struct inode *inode, struct file *file, + unsigned int cmd, unsigned long arg) +{ + return video_usercopy(inode, file, cmd, arg, usbvision_do_radio_ioctl); +} + + +/* + * Here comes the stuff for vbi on usbvision based devices + * + */ +static int usbvision_vbi_open(struct inode *inode, struct file *file) +{ + /* TODO */ + return -EINVAL; + +} + +static int usbvision_vbi_close(struct inode *inode, struct file *file) +{ + /* TODO */ + return -EINVAL; +} + +static int usbvision_do_vbi_ioctl(struct inode *inode, struct file *file, + unsigned int cmd, void *arg) +{ + /* TODO */ + return -EINVAL; +} + +static int usbvision_vbi_ioctl(struct inode *inode, struct file *file, + unsigned int cmd, unsigned long arg) +{ + return video_usercopy(inode, file, cmd, arg, usbvision_do_vbi_ioctl); +} + + +// +// Video registration stuff +// + +// Video template +static struct file_operations usbvision_fops = { + .owner = THIS_MODULE, + .open = usbvision_v4l2_open, + .release = usbvision_v4l2_close, + .read = usbvision_v4l2_read, + .mmap = usbvision_v4l2_mmap, + .ioctl = usbvision_v4l2_ioctl, + .llseek = no_llseek, +}; +static struct video_device usbvision_video_template = { + .owner = THIS_MODULE, + .type = VID_TYPE_TUNER | VID_TYPE_CAPTURE, + .hardware = VID_HARDWARE_USBVISION, + .fops = &usbvision_fops, + .name = "usbvision-video", + .release = video_device_release, + .minor = -1, +}; + + +// Radio template +static struct file_operations usbvision_radio_fops = { + .owner = THIS_MODULE, + .open = usbvision_radio_open, + .release = usbvision_radio_close, + .ioctl = usbvision_radio_ioctl, + .llseek = no_llseek, +}; + +static struct video_device usbvision_radio_template= +{ + .owner = THIS_MODULE, + .type = VID_TYPE_TUNER, + .hardware = VID_HARDWARE_USBVISION, + .fops = &usbvision_radio_fops, + .release = video_device_release, + .name = "usbvision-radio", + .minor = -1, +}; + + +// vbi template +static struct file_operations usbvision_vbi_fops = { + .owner = THIS_MODULE, + .open = usbvision_vbi_open, + .release = usbvision_vbi_close, + .ioctl = usbvision_vbi_ioctl, + .llseek = no_llseek, +}; + +static struct video_device usbvision_vbi_template= +{ + .owner = THIS_MODULE, + .type = VID_TYPE_TUNER, + .hardware = VID_HARDWARE_USBVISION, + .fops = &usbvision_vbi_fops, + .release = video_device_release, + .name = "usbvision-vbi", + .minor = -1, +}; + + +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) { + err("%s: usbvision->dev is not set", __FUNCTION__); + return NULL; + } + + vdev = video_device_alloc(); + if (NULL == vdev) { + return NULL; + } + *vdev = *vdev_template; +// vdev->minor = -1; + vdev->dev = &usb_dev->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) +{ + // vbi Device: + if (usbvision->vbi) { + PDEBUG(DBG_PROBE, "unregister /dev/vbi%d [v4l2]", usbvision->vbi->minor & 0x1f); + if (usbvision->vbi->minor != -1) { + video_unregister_device(usbvision->vbi); + } + else { + video_device_release(usbvision->vbi); + } + usbvision->vbi = NULL; + } + + // Radio Device: + if (usbvision->rdev) { + PDEBUG(DBG_PROBE, "unregister /dev/radio%d [v4l2]", usbvision->rdev->minor & 0x1f); + if (usbvision->rdev->minor != -1) { + video_unregister_device(usbvision->rdev); + } + else { + video_device_release(usbvision->rdev); + } + usbvision->rdev = NULL; + } + + // Video Device: + if (usbvision->vdev) { + PDEBUG(DBG_PROBE, "unregister /dev/video%d [v4l2]", usbvision->vdev->minor & 0x1f); + if (usbvision->vdev->minor != -1) { + 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; + } + info("USBVision[%d]: registered USBVision Video device /dev/video%d [v4l2]", usbvision->nr,usbvision->vdev->minor & 0x1f); + + // Radio Device: + if (usbvision_device_data[usbvision->DevModel].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; + } + info("USBVision[%d]: registered USBVision Radio device /dev/radio%d [v4l2]", usbvision->nr, usbvision->rdev->minor & 0x1f); + } + // vbi Device: + if (usbvision_device_data[usbvision->DevModel].vbi) { + usbvision->vbi = usbvision_vdev_init(usbvision, &usbvision_vbi_template, "USBVision VBI"); + if (usbvision->vdev == NULL) { + goto err_exit; + } + if (video_register_device(usbvision->vbi, VFL_TYPE_VBI, vbi_nr)<0) { + goto err_exit; + } + info("USBVision[%d]: registered USBVision VBI device /dev/vbi%d [v4l2] (Not Working Yet!)", usbvision->nr,usbvision->vbi->minor & 0x1f); + } + // all done + return 0; + + err_exit: + err("USBVision[%d]: video_register_device() failed", 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_usbvision *usbvision; + + if ((usbvision = kzalloc(sizeof(struct usb_usbvision), GFP_KERNEL)) == NULL) { + goto err_exit; + } + + usbvision->dev = dev; + + init_MUTEX(&usbvision->lock); /* to 1 == available */ + + // prepare control urb for control messages during interrupts + usbvision->ctrlUrb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL); + if (usbvision->ctrlUrb == NULL) { + goto err_exit; + } + init_waitqueue_head(&usbvision->ctrlUrb_wq); + init_MUTEX(&usbvision->ctrlUrbLock); /* to 1 == available */ + + usbvision_init_powerOffTimer(usbvision); + + return usbvision; + +err_exit: + if (usbvision && usbvision->ctrlUrb) { + usb_free_urb(usbvision->ctrlUrb); + } + if (usbvision) { + 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, ""); + + down(&usbvision->lock); + + usbvision_reset_powerOffTimer(usbvision); + + usbvision->initialized = 0; + + up(&usbvision->lock); + + usbvision_remove_sysfs(usbvision->vdev); + usbvision_unregister_video(usbvision); + + if (usbvision->ctrlUrb) { + usb_free_urb(usbvision->ctrlUrb); + } + + kfree(usbvision); + + PDEBUG(DBG_PROBE, "success"); +} + + +/******************************** usb interface *****************************************/ + +static void usbvision_configure_video(struct usb_usbvision *usbvision) +{ + int model,i; + + if (usbvision == NULL) + return; + + model = usbvision->DevModel; + usbvision->palette = usbvision_v4l2_format[2]; // V4L2_PIX_FMT_RGB24; + + if (usbvision_device_data[usbvision->DevModel].Vin_Reg2 >= 0) { + usbvision->Vin_Reg2_Preset = usbvision_device_data[usbvision->DevModel].Vin_Reg2 & 0xff; + } else { + usbvision->Vin_Reg2_Preset = 0; + } + + for (i = 0; i < TVNORMS; i++) + if (usbvision_device_data[model].VideoNorm == tvnorms[i].mode) + break; + if (i == TVNORMS) + i = 0; + usbvision->tvnorm = &tvnorms[i]; /* set default norm */ + + usbvision->video_inputs = usbvision_device_data[model].VideoChannels; + usbvision->ctl_input = 0; + + /* This should be here to make i2c clients to be able to register */ + usbvision_audio_off(usbvision); //first switch off audio + if (!PowerOnAtOpen) { + usbvision_power_on(usbvision); //and then power up the noisy tuner + usbvision_init_i2c(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 = interface_to_usbdev(intf); + __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; + + PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u", + dev->descriptor.idVendor, dev->descriptor.idProduct, ifnum); + /* Is it an USBVISION video dev? */ + model = 0; + for(model = 0; usbvision_device_data[model].idVendor; model++) { + if (le16_to_cpu(dev->descriptor.idVendor) != usbvision_device_data[model].idVendor) { + continue; + } + if (le16_to_cpu(dev->descriptor.idProduct) != usbvision_device_data[model].idProduct) { + continue; + } + + info("%s: %s found", __FUNCTION__, usbvision_device_data[model].ModelString); + break; + } + + if (usbvision_device_data[model].idVendor == 0) { + return -ENODEV; //no matching device + } + 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 ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_ISOC) { + err("%s: interface %d. has non-ISO endpoint!", __FUNCTION__, ifnum); + err("%s: Endpoint attribures %d", __FUNCTION__, endpoint->bmAttributes); + return -ENODEV; + } + if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) { + err("%s: interface %d. has ISO OUT endpoint!", __FUNCTION__, ifnum); + return -ENODEV; + } + + usb_get_dev(dev); + + if ((usbvision = usbvision_alloc(dev)) == NULL) { + err("%s: couldn't allocate USBVision struct", __FUNCTION__); + return -ENOMEM; + } + if (dev->descriptor.bNumConfigurations > 1) { + usbvision->bridgeType = BRIDGE_NT1004; + } + else if (usbvision_device_data[model].ModelString == "Dazzle Fusion Model DVC-90 Rev 1 (SECAM)") { + usbvision->bridgeType = BRIDGE_NT1005; + } + else { + usbvision->bridgeType = BRIDGE_NT1003; + } + PDEBUG(DBG_PROBE, "bridgeType %d", usbvision->bridgeType); + + down(&usbvision->lock); + + usbvision->nr = usbvision_nr++; + + usbvision->have_tuner = usbvision_device_data[model].Tuner; + if (usbvision->have_tuner) { + usbvision->tuner_type = usbvision_device_data[model].TunerType; + } + + usbvision->tuner_addr = ADDR_UNSET; + + usbvision->DevModel = model; + usbvision->remove_pending = 0; + usbvision->iface = ifnum; + usbvision->ifaceAltInactive = 0; + usbvision->ifaceAltActive = 1; + usbvision->video_endp = endpoint->bEndpointAddress; + usbvision->isocPacketSize = 0; + usbvision->usb_bandwidth = 0; + usbvision->user = 0; + usbvision->streaming = Stream_Off; + usbvision_register_video(usbvision); + usbvision_configure_video(usbvision); + up(&usbvision->lock); + + + usb_set_intfdata (intf, 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 = usb_get_intfdata(intf); + + PDEBUG(DBG_PROBE, ""); + + if (usbvision == NULL) { + err("%s: usb_get_intfdata() failed", __FUNCTION__); + return; + } + usb_set_intfdata (intf, NULL); + + down(&usbvision->lock); + + // At this time we ask to cancel outstanding URBs + usbvision_stop_isoc(usbvision); + + if (usbvision->power) { + usbvision_i2c_usb_del_bus(&usbvision->i2c_adap); + 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 + + up(&usbvision->lock); + + if (usbvision->user) { + info("%s: In use, disconnect pending", __FUNCTION__); + 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 = usbvision_disconnect +}; + +/* + * customdevice_process() + * + * This procedure preprocesses CustomDevice parameter if any + * + */ +static void customdevice_process(void) +{ + usbvision_device_data[0]=usbvision_device_data[1]; + usbvision_table[0]=usbvision_table[1]; + + if(CustomDevice) + { + char *parse=CustomDevice; + + PDEBUG(DBG_PROBE, "CustomDevide=%s", CustomDevice); + + /*format is CustomDevice="0x0573 0x4D31 0 7113 3 PAL 1 1 1 5 -1 -1 -1 -1 -1" + usbvision_device_data[0].idVendor; + usbvision_device_data[0].idProduct; + usbvision_device_data[0].Interface; + usbvision_device_data[0].Codec; + usbvision_device_data[0].VideoChannels; + usbvision_device_data[0].VideoNorm; + usbvision_device_data[0].AudioChannels; + usbvision_device_data[0].Radio; + usbvision_device_data[0].Tuner; + usbvision_device_data[0].TunerType; + usbvision_device_data[0].Vin_Reg1; + usbvision_device_data[0].Vin_Reg2; + usbvision_device_data[0].X_Offset; + usbvision_device_data[0].Y_Offset; + usbvision_device_data[0].Dvi_yuv; + usbvision_device_data[0].ModelString; + */ + + rmspace(parse); + usbvision_device_data[0].ModelString="USBVISION Custom Device"; + + parse+=2; + sscanf(parse,"%x",&usbvision_device_data[0].idVendor); + goto2next(parse); + PDEBUG(DBG_PROBE, "idVendor=0x%.4X", usbvision_device_data[0].idVendor); + parse+=2; + sscanf(parse,"%x",&usbvision_device_data[0].idProduct); + goto2next(parse); + PDEBUG(DBG_PROBE, "idProduct=0x%.4X", usbvision_device_data[0].idProduct); + sscanf(parse,"%d",&usbvision_device_data[0].Interface); + goto2next(parse); + PDEBUG(DBG_PROBE, "Interface=%d", usbvision_device_data[0].Interface); + sscanf(parse,"%d",&usbvision_device_data[0].Codec); + goto2next(parse); + PDEBUG(DBG_PROBE, "Codec=%d", usbvision_device_data[0].Codec); + sscanf(parse,"%d",&usbvision_device_data[0].VideoChannels); + goto2next(parse); + PDEBUG(DBG_PROBE, "VideoChannels=%d", usbvision_device_data[0].VideoChannels); + + switch(*parse) + { + case 'P': + PDEBUG(DBG_PROBE, "VideoNorm=PAL"); + usbvision_device_data[0].VideoNorm=V4L2_STD_PAL; + break; + + case 'S': + PDEBUG(DBG_PROBE, "VideoNorm=SECAM"); + usbvision_device_data[0].VideoNorm=V4L2_STD_SECAM; + break; + + case 'N': + PDEBUG(DBG_PROBE, "VideoNorm=NTSC"); + usbvision_device_data[0].VideoNorm=V4L2_STD_NTSC; + break; + + default: + PDEBUG(DBG_PROBE, "VideoNorm=PAL (by default)"); + usbvision_device_data[0].VideoNorm=V4L2_STD_PAL; + break; + } + goto2next(parse); + + sscanf(parse,"%d",&usbvision_device_data[0].AudioChannels); + goto2next(parse); + PDEBUG(DBG_PROBE, "AudioChannels=%d", usbvision_device_data[0].AudioChannels); + sscanf(parse,"%d",&usbvision_device_data[0].Radio); + goto2next(parse); + PDEBUG(DBG_PROBE, "Radio=%d", usbvision_device_data[0].Radio); + sscanf(parse,"%d",&usbvision_device_data[0].Tuner); + goto2next(parse); + PDEBUG(DBG_PROBE, "Tuner=%d", usbvision_device_data[0].Tuner); + sscanf(parse,"%d",&usbvision_device_data[0].TunerType); + goto2next(parse); + PDEBUG(DBG_PROBE, "TunerType=%d", usbvision_device_data[0].TunerType); + sscanf(parse,"%d",&usbvision_device_data[0].Vin_Reg1); + goto2next(parse); + PDEBUG(DBG_PROBE, "Vin_Reg1=%d", usbvision_device_data[0].Vin_Reg1); + sscanf(parse,"%d",&usbvision_device_data[0].Vin_Reg2); + goto2next(parse); + PDEBUG(DBG_PROBE, "Vin_Reg2=%d", usbvision_device_data[0].Vin_Reg2); + sscanf(parse,"%d",&usbvision_device_data[0].X_Offset); + goto2next(parse); + PDEBUG(DBG_PROBE, "X_Offset=%d", usbvision_device_data[0].X_Offset); + sscanf(parse,"%d",&usbvision_device_data[0].Y_Offset); + goto2next(parse); + PDEBUG(DBG_PROBE, "Y_Offset=%d", usbvision_device_data[0].Y_Offset); + sscanf(parse,"%d",&usbvision_device_data[0].Dvi_yuv); + PDEBUG(DBG_PROBE, "Dvi_yuv=%d", usbvision_device_data[0].Dvi_yuv); + + //add to usbvision_table also + usbvision_table[0].match_flags=USB_DEVICE_ID_MATCH_DEVICE; + usbvision_table[0].idVendor=usbvision_device_data[0].idVendor; + usbvision_table[0].idProduct=usbvision_device_data[0].idProduct; + + } +} + + + +/* + * usbvision_init() + * + * This code is run to initialize the driver. + * + */ +static int __init usbvision_init(void) +{ + int errCode; + + PDEBUG(DBG_PROBE, ""); + + PDEBUG(DBG_IOCTL, "IOCTL debugging is enabled [video]"); + 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 (isocMode != 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 + } + + customdevice_process(); + + errCode = usb_register(&usbvision_driver); + + if (errCode == 0) { + info(DRIVER_DESC " : " USBVISION_VERSION_STRING); + PDEBUG(DBG_PROBE, "success"); + } + return errCode; +} + +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: + */ |