drivers/media/video/pvrusb2/pvrusb2-main.c

   1 /*
   2  *
   3  *  $Id$
   4  *
   5  *  Copyright (C) 2005 Mike Isely <isely@pobox.com>
   6  *  Copyright (C) 2004 Aurelien Alleaume <slts@free.fr>
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 2 of the License
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, write to the Free Software
  19  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  *
  21  */
  22
  23 #include <linux/kernel.h>
  24 #include <linux/errno.h>
  25 #include <linux/slab.h>
  26 #include <linux/module.h>
  27 #include <linux/usb.h>
  28 #include <linux/videodev2.h>
  29
  30 #include "pvrusb2-hdw.h"
  31 #include "pvrusb2-devattr.h"
  32 #include "pvrusb2-context.h"
  33 #include "pvrusb2-debug.h"
  34 #include "pvrusb2-v4l2.h"
  35 #ifdef CONFIG_VIDEO_PVRUSB2_SYSFS
  36 #include "pvrusb2-sysfs.h"
  37 #endif /* CONFIG_VIDEO_PVRUSB2_SYSFS */
  38
  39 #define DRIVER_AUTHOR "Mike Isely <isely@pobox.com>"
  40 #define DRIVER_DESC "Hauppauge WinTV-PVR-USB2 MPEG2 Encoder/Tuner"
  41 #define DRIVER_VERSION "V4L in-tree version"
  42
  43 #define DEFAULT_DEBUG_MASK (PVR2_TRACE_ERROR_LEGS| \
  44                             PVR2_TRACE_INFO| \
  45                             PVR2_TRACE_STD| \
  46                             PVR2_TRACE_TOLERANCE| \
  47                             PVR2_TRACE_TRAP| \
  48                             0)
  49
  50 int pvrusb2_debug = DEFAULT_DEBUG_MASK;
  51
  52 module_param_named(debug,pvrusb2_debug,int,S_IRUGO|S_IWUSR);
  53 MODULE_PARM_DESC(debug, "Debug trace mask");
  54
  55 #ifdef CONFIG_VIDEO_PVRUSB2_SYSFS
  56 static struct pvr2_sysfs_class *class_ptr = NULL;
  57 #endif /* CONFIG_VIDEO_PVRUSB2_SYSFS */
  58
  59 static void pvr_setup_attach(struct pvr2_context *pvr)
  60 {
  61         /* Create association with v4l layer */
  62         pvr2_v4l2_create(pvr);
  63 #ifdef CONFIG_VIDEO_PVRUSB2_DVB
  64         /* Create association with dvb layer */
  65         pvr2_dvb_create(pvr);
  66 #endif
  67 #ifdef CONFIG_VIDEO_PVRUSB2_SYSFS
  68         pvr2_sysfs_create(pvr,class_ptr);
  69 #endif /* CONFIG_VIDEO_PVRUSB2_SYSFS */
  70 }
  71
  72 static int pvr_probe(struct usb_interface *intf,
  73                      const struct usb_device_id *devid)
  74 {
  75         struct pvr2_context *pvr;
  76
  77         /* Create underlying hardware interface */
  78         pvr = pvr2_context_create(intf,devid,pvr_setup_attach);
  79         if (!pvr) {
  80                 pvr2_trace(PVR2_TRACE_ERROR_LEGS,
  81                            "Failed to create hdw handler");
  82                 return -ENOMEM;
  83         }
  84
  85         pvr2_trace(PVR2_TRACE_INIT,"pvr_probe(pvr=%p)",pvr);
  86
  87         usb_set_intfdata(intf, pvr);
  88
  89         return 0;
  90 }
  91
  92 /*
  93  * pvr_disconnect()
  94  *
  95  */
  96 static void pvr_disconnect(struct usb_interface *intf)
  97 {
  98         struct pvr2_context *pvr = usb_get_intfdata(intf);
  99
 100         pvr2_trace(PVR2_TRACE_INIT,"pvr_disconnect(pvr=%p) BEGIN",pvr);
 101
 102         usb_set_intfdata (intf, NULL);
 103         pvr2_context_disconnect(pvr);
 104
 105         pvr2_trace(PVR2_TRACE_INIT,"pvr_disconnect(pvr=%p) DONE",pvr);
 106
 107 }
 108
 109 static struct usb_driver pvr_driver = {
 110         .name =         "pvrusb2",
 111         .id_table =     pvr2_device_table,
 112         .probe =        pvr_probe,
 113         .disconnect =   pvr_disconnect
 114 };
 115
 116 /*
 117  * pvr_init() / pvr_exit()
 118  *
 119  * This code is run to initialize/exit the driver.
 120  *
 121  */
 122 static int __init pvr_init(void)
 123 {
 124         int ret;
 125
 126         pvr2_trace(PVR2_TRACE_INIT,"pvr_init");
 127
 128         ret = pvr2_context_global_init();
 129         if (ret != 0) {
 130                 pvr2_trace(PVR2_TRACE_INIT,"pvr_init failure code=%d",ret);
 131                 return ret;
 132         }
 133
 134 #ifdef CONFIG_VIDEO_PVRUSB2_SYSFS
 135         class_ptr = pvr2_sysfs_class_create();
 136 #endif /* CONFIG_VIDEO_PVRUSB2_SYSFS */
 137
 138         ret = usb_register(&pvr_driver);
 139
 140         if (ret == 0)
 141                 info(DRIVER_DESC " : " DRIVER_VERSION);
 142         if (pvrusb2_debug) info("Debug mask is %d (0x%x)",
 143                                 pvrusb2_debug,pvrusb2_debug);
 144
 145         pvr2_trace(PVR2_TRACE_INIT,"pvr_init complete");
 146
 147         return ret;
 148 }
 149
 150 static void __exit pvr_exit(void)
 151 {
 152         pvr2_trace(PVR2_TRACE_INIT,"pvr_exit");
 153
 154         usb_deregister(&pvr_driver);
 155
 156 #ifdef CONFIG_VIDEO_PVRUSB2_SYSFS
 157         pvr2_sysfs_class_destroy(class_ptr);
 158 #endif /* CONFIG_VIDEO_PVRUSB2_SYSFS */
 159
 160         pvr2_context_global_done();
 161
 162         pvr2_trace(PVR2_TRACE_INIT,"pvr_exit complete");
 163 }
 164
 165 module_init(pvr_init);
 166 module_exit(pvr_exit);
 167
 168 MODULE_AUTHOR(DRIVER_AUTHOR);
 169 MODULE_DESCRIPTION(DRIVER_DESC);
 170 MODULE_LICENSE("GPL");
 171
 172
 173 /*
 174   Stuff for Emacs to see, in order to encourage consistent editing style:
 175   *** Local Variables: ***
 176   *** mode: c ***
 177   *** fill-column: 70 ***
 178   *** tab-width: 8 ***
 179   *** c-basic-offset: 8 ***
 180   *** End: ***
 181   */