LXR linux/drivers/media/usb/pvrusb2/pvrusb2-main.c

   1/*
   2 *
   3 *
   4 *  Copyright (C) 2005 Mike Isely <isely@pobox.com>
   5 *  Copyright (C) 2004 Aurelien Alleaume <slts@free.fr>
   6 *
   7 *  This program is free software; you can redistribute it and/or modify
   8 *  it under the terms of the GNU General Public License as published by
   9 *  the Free Software Foundation; either version 2 of the License
  10 *
  11 *  This program is distributed in the hope that it will be useful,
  12 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 *  GNU General Public License for more details.
  15 *
  16 */
  17
  18#include <linux/kernel.h>
  19#include <linux/errno.h>
  20#include <linux/module.h>
  21#include <linux/usb.h>
  22#include <linux/videodev2.h>
  23
  24#include "pvrusb2-hdw.h"
  25#include "pvrusb2-devattr.h"
  26#include "pvrusb2-context.h"
  27#include "pvrusb2-debug.h"
  28#include "pvrusb2-v4l2.h"
  29#ifdef CONFIG_VIDEO_PVRUSB2_SYSFS
  30#include "pvrusb2-sysfs.h"
  31#endif /* CONFIG_VIDEO_PVRUSB2_SYSFS */
  32
  33#define DRIVER_AUTHOR "Mike Isely <isely@pobox.com>"
  34#define DRIVER_DESC "Hauppauge WinTV-PVR-USB2 MPEG2 Encoder/Tuner"
  35#define DRIVER_VERSION "V4L in-tree version"
  36
  37#define DEFAULT_DEBUG_MASK (PVR2_TRACE_ERROR_LEGS| \
  38                            PVR2_TRACE_INFO| \
  39                            PVR2_TRACE_STD| \
  40                            PVR2_TRACE_TOLERANCE| \
  41                            PVR2_TRACE_TRAP| \
  42                            0)
  43
  44int pvrusb2_debug = DEFAULT_DEBUG_MASK;
  45
  46module_param_named(debug,pvrusb2_debug,int,S_IRUGO|S_IWUSR);
  47MODULE_PARM_DESC(debug, "Debug trace mask");
  48
  49#ifdef CONFIG_VIDEO_PVRUSB2_SYSFS
  50static struct pvr2_sysfs_class *class_ptr = NULL;
  51#endif /* CONFIG_VIDEO_PVRUSB2_SYSFS */
  52
  53static void pvr_setup_attach(struct pvr2_context *pvr)
  54{
  55        /* Create association with v4l layer */
  56        pvr2_v4l2_create(pvr);
  57#ifdef CONFIG_VIDEO_PVRUSB2_DVB
  58        /* Create association with dvb layer */
  59        pvr2_dvb_create(pvr);
  60#endif
  61#ifdef CONFIG_VIDEO_PVRUSB2_SYSFS
  62        pvr2_sysfs_create(pvr,class_ptr);
  63#endif /* CONFIG_VIDEO_PVRUSB2_SYSFS */
  64}
  65
  66static int pvr_probe(struct usb_interface *intf,
  67                     const struct usb_device_id *devid)
  68{
  69        struct pvr2_context *pvr;
  70
  71        /* Create underlying hardware interface */
  72        pvr = pvr2_context_create(intf,devid,pvr_setup_attach);
  73        if (!pvr) {
  74                pvr2_trace(PVR2_TRACE_ERROR_LEGS,
  75                           "Failed to create hdw handler");
  76                return -ENOMEM;
  77        }
  78
  79        pvr2_trace(PVR2_TRACE_INIT,"pvr_probe(pvr=%p)",pvr);
  80
  81        usb_set_intfdata(intf, pvr);
  82
  83        return 0;
  84}
  85
  86/*
  87 * pvr_disconnect()
  88 *
  89 */
  90static void pvr_disconnect(struct usb_interface *intf)
  91{
  92        struct pvr2_context *pvr = usb_get_intfdata(intf);
  93
  94        pvr2_trace(PVR2_TRACE_INIT,"pvr_disconnect(pvr=%p) BEGIN",pvr);
  95
  96        usb_set_intfdata (intf, NULL);
  97        pvr2_context_disconnect(pvr);
  98
  99        pvr2_trace(PVR2_TRACE_INIT,"pvr_disconnect(pvr=%p) DONE",pvr);
 100
 101}
 102
 103static struct usb_driver pvr_driver = {
 104        .name =         "pvrusb2",
 105        .id_table =     pvr2_device_table,
 106        .probe =        pvr_probe,
 107        .disconnect =   pvr_disconnect
 108};
 109
 110/*
 111 * pvr_init() / pvr_exit()
 112 *
 113 * This code is run to initialize/exit the driver.
 114 *
 115 */
 116static int __init pvr_init(void)
 117{
 118        int ret;
 119
 120        pvr2_trace(PVR2_TRACE_INIT,"pvr_init");
 121
 122        ret = pvr2_context_global_init();
 123        if (ret != 0) {
 124                pvr2_trace(PVR2_TRACE_INIT,"pvr_init failure code=%d",ret);
 125                return ret;
 126        }
 127
 128#ifdef CONFIG_VIDEO_PVRUSB2_SYSFS
 129        class_ptr = pvr2_sysfs_class_create();
 130#endif /* CONFIG_VIDEO_PVRUSB2_SYSFS */
 131
 132        ret = usb_register(&pvr_driver);
 133
 134        if (ret == 0)
 135                printk(KERN_INFO "pvrusb2: " DRIVER_VERSION ":"
 136                       DRIVER_DESC "\n");
 137        if (pvrusb2_debug)
 138                printk(KERN_INFO "pvrusb2: Debug mask is %d (0x%x)\n",
 139                       pvrusb2_debug,pvrusb2_debug);
 140
 141        pvr2_trace(PVR2_TRACE_INIT,"pvr_init complete");
 142
 143        return ret;
 144}
 145
 146static void __exit pvr_exit(void)
 147{
 148        pvr2_trace(PVR2_TRACE_INIT,"pvr_exit");
 149
 150        usb_deregister(&pvr_driver);
 151
 152        pvr2_context_global_done();
 153
 154#ifdef CONFIG_VIDEO_PVRUSB2_SYSFS
 155        pvr2_sysfs_class_destroy(class_ptr);
 156#endif /* CONFIG_VIDEO_PVRUSB2_SYSFS */
 157
 158        pvr2_trace(PVR2_TRACE_INIT,"pvr_exit complete");
 159}
 160
 161module_init(pvr_init);
 162module_exit(pvr_exit);
 163
 164MODULE_AUTHOR(DRIVER_AUTHOR);
 165MODULE_DESCRIPTION(DRIVER_DESC);
 166MODULE_LICENSE("GPL");
 167MODULE_VERSION("0.9.1");
 168