LXR linux/drivers/media/video/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 *  You should have received a copy of the GNU General Public License
  17 *  along with this program; if not, write to the Free Software
  18 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19 *
  20 */
  21
  22#include <linux/kernel.h>
  23#include <linux/errno.h>
  24#include <linux/slab.h>
  25#include <linux/module.h>
  26#include <linux/usb.h>
  27#include <linux/videodev2.h>
  28
  29#include "pvrusb2-hdw.h"
  30#include "pvrusb2-devattr.h"
  31#include "pvrusb2-context.h"
  32#include "pvrusb2-debug.h"
  33#include "pvrusb2-v4l2.h"
  34#ifdef CONFIG_VIDEO_PVRUSB2_SYSFS
  35#include "pvrusb2-sysfs.h"
  36#endif /* CONFIG_VIDEO_PVRUSB2_SYSFS */
  37
  38#define DRIVER_AUTHOR "Mike Isely <isely@pobox.com>"
  39#define DRIVER_DESC "Hauppauge WinTV-PVR-USB2 MPEG2 Encoder/Tuner"
  40#define DRIVER_VERSION "V4L in-tree version"
  41
  42#define DEFAULT_DEBUG_MASK (PVR2_TRACE_ERROR_LEGS| \
  43                            PVR2_TRACE_INFO| \
  44                            PVR2_TRACE_STD| \
  45                            PVR2_TRACE_TOLERANCE| \
  46                            PVR2_TRACE_TRAP| \
  47                            0)
  48
  49int pvrusb2_debug = DEFAULT_DEBUG_MASK;
  50
  51module_param_named(debug,pvrusb2_debug,int,S_IRUGO|S_IWUSR);
  52MODULE_PARM_DESC(debug, "Debug trace mask");
  53
  54#ifdef CONFIG_VIDEO_PVRUSB2_SYSFS
  55static struct pvr2_sysfs_class *class_ptr = NULL;
  56#endif /* CONFIG_VIDEO_PVRUSB2_SYSFS */
  57
  58static void pvr_setup_attach(struct pvr2_context *pvr)
  59{
  60        /* Create association with v4l layer */
  61        pvr2_v4l2_create(pvr);
  62#ifdef CONFIG_VIDEO_PVRUSB2_DVB
  63        /* Create association with dvb layer */
  64        pvr2_dvb_create(pvr);
  65#endif
  66#ifdef CONFIG_VIDEO_PVRUSB2_SYSFS
  67        pvr2_sysfs_create(pvr,class_ptr);
  68#endif /* CONFIG_VIDEO_PVRUSB2_SYSFS */
  69}
  70
  71static int pvr_probe(struct usb_interface *intf,
  72                     const struct usb_device_id *devid)
  73{
  74        struct pvr2_context *pvr;
  75
  76        /* Create underlying hardware interface */
  77        pvr = pvr2_context_create(intf,devid,pvr_setup_attach);
  78        if (!pvr) {
  79                pvr2_trace(PVR2_TRACE_ERROR_LEGS,
  80                           "Failed to create hdw handler");
  81                return -ENOMEM;
  82        }
  83
  84        pvr2_trace(PVR2_TRACE_INIT,"pvr_probe(pvr=%p)",pvr);
  85
  86        usb_set_intfdata(intf, pvr);
  87
  88        return 0;
  89}
  90
  91/*
  92 * pvr_disconnect()
  93 *
  94 */
  95static void pvr_disconnect(struct usb_interface *intf)
  96{
  97        struct pvr2_context *pvr = usb_get_intfdata(intf);
  98
  99        pvr2_trace(PVR2_TRACE_INIT,"pvr_disconnect(pvr=%p) BEGIN",pvr);
 100
 101        usb_set_intfdata (intf, NULL);
 102        pvr2_context_disconnect(pvr);
 103
 104        pvr2_trace(PVR2_TRACE_INIT,"pvr_disconnect(pvr=%p) DONE",pvr);
 105
 106}
 107
 108static struct usb_driver pvr_driver = {
 109        .name =         "pvrusb2",
 110        .id_table =     pvr2_device_table,
 111        .probe =        pvr_probe,
 112        .disconnect =   pvr_disconnect
 113};
 114
 115/*
 116 * pvr_init() / pvr_exit()
 117 *
 118 * This code is run to initialize/exit the driver.
 119 *
 120 */
 121static int __init pvr_init(void)
 122{
 123        int ret;
 124
 125        pvr2_trace(PVR2_TRACE_INIT,"pvr_init");
 126
 127        ret = pvr2_context_global_init();
 128        if (ret != 0) {
 129                pvr2_trace(PVR2_TRACE_INIT,"pvr_init failure code=%d",ret);
 130                return ret;
 131        }
 132
 133#ifdef CONFIG_VIDEO_PVRUSB2_SYSFS
 134        class_ptr = pvr2_sysfs_class_create();
 135#endif /* CONFIG_VIDEO_PVRUSB2_SYSFS */
 136
 137        ret = usb_register(&pvr_driver);
 138
 139        if (ret == 0)
 140                printk(KERN_INFO "pvrusb2: " DRIVER_VERSION ":"
 141                       DRIVER_DESC "\n");
 142        if (pvrusb2_debug)
 143                printk(KERN_INFO "pvrusb2: Debug mask is %d (0x%x)\n",
 144                       pvrusb2_debug,pvrusb2_debug);
 145
 146        pvr2_trace(PVR2_TRACE_INIT,"pvr_init complete");
 147
 148        return ret;
 149}
 150
 151static void __exit pvr_exit(void)
 152{
 153        pvr2_trace(PVR2_TRACE_INIT,"pvr_exit");
 154
 155        usb_deregister(&pvr_driver);
 156
 157#ifdef CONFIG_VIDEO_PVRUSB2_SYSFS
 158        pvr2_sysfs_class_destroy(class_ptr);
 159#endif /* CONFIG_VIDEO_PVRUSB2_SYSFS */
 160
 161        pvr2_context_global_done();
 162
 163        pvr2_trace(PVR2_TRACE_INIT,"pvr_exit complete");
 164}
 165
 166module_init(pvr_init);
 167module_exit(pvr_exit);
 168
 169MODULE_AUTHOR(DRIVER_AUTHOR);
 170MODULE_DESCRIPTION(DRIVER_DESC);
 171MODULE_LICENSE("GPL");
 172
 173
 174/*
 175  Stuff for Emacs to see, in order to encourage consistent editing style:
 176  *** Local Variables: ***
 177  *** mode: c ***
 178  *** fill-column: 70 ***
 179  *** tab-width: 8 ***
 180  *** c-basic-offset: 8 ***
 181  *** End: ***
 182  */
 183