Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
[sfrench/cifs-2.6.git] / 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-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_SYSFS
63         pvr2_sysfs_create(pvr,class_ptr);
64 #endif /* CONFIG_VIDEO_PVRUSB2_SYSFS */
65 }
66
67 static int pvr_probe(struct usb_interface *intf,
68                      const struct usb_device_id *devid)
69 {
70         struct pvr2_context *pvr;
71
72         /* Create underlying hardware interface */
73         pvr = pvr2_context_create(intf,devid,pvr_setup_attach);
74         if (!pvr) {
75                 pvr2_trace(PVR2_TRACE_ERROR_LEGS,
76                            "Failed to create hdw handler");
77                 return -ENOMEM;
78         }
79
80         pvr2_trace(PVR2_TRACE_INIT,"pvr_probe(pvr=%p)",pvr);
81
82         usb_set_intfdata(intf, pvr);
83
84         return 0;
85 }
86
87 /*
88  * pvr_disconnect()
89  *
90  */
91 static void pvr_disconnect(struct usb_interface *intf)
92 {
93         struct pvr2_context *pvr = usb_get_intfdata(intf);
94
95         pvr2_trace(PVR2_TRACE_INIT,"pvr_disconnect(pvr=%p) BEGIN",pvr);
96
97         usb_set_intfdata (intf, NULL);
98         pvr2_context_disconnect(pvr);
99
100         pvr2_trace(PVR2_TRACE_INIT,"pvr_disconnect(pvr=%p) DONE",pvr);
101
102 }
103
104 static struct usb_driver pvr_driver = {
105         .name =         "pvrusb2",
106         .id_table =     pvr2_device_table,
107         .probe =        pvr_probe,
108         .disconnect =   pvr_disconnect
109 };
110
111 /*
112  * pvr_init() / pvr_exit()
113  *
114  * This code is run to initialize/exit the driver.
115  *
116  */
117 static int __init pvr_init(void)
118 {
119         int ret;
120
121         pvr2_trace(PVR2_TRACE_INIT,"pvr_init");
122
123 #ifdef CONFIG_VIDEO_PVRUSB2_SYSFS
124         class_ptr = pvr2_sysfs_class_create();
125 #endif /* CONFIG_VIDEO_PVRUSB2_SYSFS */
126
127         ret = usb_register(&pvr_driver);
128
129         if (ret == 0)
130                 info(DRIVER_DESC " : " DRIVER_VERSION);
131         if (pvrusb2_debug) info("Debug mask is %d (0x%x)",
132                                 pvrusb2_debug,pvrusb2_debug);
133
134         return ret;
135 }
136
137 static void __exit pvr_exit(void)
138 {
139         pvr2_trace(PVR2_TRACE_INIT,"pvr_exit");
140
141         usb_deregister(&pvr_driver);
142
143 #ifdef CONFIG_VIDEO_PVRUSB2_SYSFS
144         pvr2_sysfs_class_destroy(class_ptr);
145 #endif /* CONFIG_VIDEO_PVRUSB2_SYSFS */
146 }
147
148 module_init(pvr_init);
149 module_exit(pvr_exit);
150
151 /* Mike Isely <mcisely@pobox.com> 11-Mar-2006: See pvrusb2-hdw.c for
152    MODULE_DEVICE_TABLE().  We have to declare that attribute there
153    because that's where the device table actually is now and it seems
154    that certain gcc configurations get angry if MODULE_DEVICE_TABLE()
155    is used on what ends up being an external symbol. */
156 MODULE_AUTHOR(DRIVER_AUTHOR);
157 MODULE_DESCRIPTION(DRIVER_DESC);
158 MODULE_LICENSE("GPL");
159
160
161 /*
162   Stuff for Emacs to see, in order to encourage consistent editing style:
163   *** Local Variables: ***
164   *** mode: c ***
165   *** fill-column: 70 ***
166   *** tab-width: 8 ***
167   *** c-basic-offset: 8 ***
168   *** End: ***
169   */