Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
[linux-2.6.git] / 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                 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
151 static 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
166 module_init(pvr_init);
167 module_exit(pvr_exit);
168
169 MODULE_AUTHOR(DRIVER_AUTHOR);
170 MODULE_DESCRIPTION(DRIVER_DESC);
171 MODULE_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   */