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
  49 int pvrusb2_debug = DEFAULT_DEBUG_MASK;
  50
  51 module_param_named(debug,pvrusb2_debug,int,S_IRUGO|S_IWUSR);
  52 MODULE_PARM_DESC(debug, "Debug trace mask");
  53
  54 #ifdef CONFIG_VIDEO_PVRUSB2_SYSFS
  55 static struct pvr2_sysfs_class *class_ptr = NULL;
  56 #endif /* CONFIG_VIDEO_PVRUSB2_SYSFS */
  57
  58 static 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
  71 static 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  */
  95 static 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
 108 static 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  */
 121 static 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                 info(DRIVER_DESC " : " DRIVER_VERSION);
 141         if (pvrusb2_debug) info("Debug mask is %d (0x%x)",
 142                                 pvrusb2_debug,pvrusb2_debug);
 143
 144         pvr2_trace(PVR2_TRACE_INIT,"pvr_init complete");
 145
 146         return ret;
 147 }
 148
 149 static void __exit pvr_exit(void)
 150 {
 151         pvr2_trace(PVR2_TRACE_INIT,"pvr_exit");
 152
 153         usb_deregister(&pvr_driver);
 154
 155 #ifdef CONFIG_VIDEO_PVRUSB2_SYSFS
 156         pvr2_sysfs_class_destroy(class_ptr);
 157 #endif /* CONFIG_VIDEO_PVRUSB2_SYSFS */
 158
 159         pvr2_context_global_done();
 160
 161         pvr2_trace(PVR2_TRACE_INIT,"pvr_exit complete");
 162 }
 163
 164 module_init(pvr_init);
 165 module_exit(pvr_exit);
 166
 167 MODULE_AUTHOR(DRIVER_AUTHOR);
 168 MODULE_DESCRIPTION(DRIVER_DESC);
 169 MODULE_LICENSE("GPL");
 170
 171
 172 /*
 173   Stuff for Emacs to see, in order to encourage consistent editing style:
 174   *** Local Variables: ***
 175   *** mode: c ***
 176   *** fill-column: 70 ***
 177   *** tab-width: 8 ***
 178   *** c-basic-offset: 8 ***
 179   *** End: ***
 180   */