xref: /linux/drivers/media/usb/pvrusb2/pvrusb2-main.c (revision b889fcf63cb62e7fdb7816565e28f44dbe4a76a5)
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/module.h>
25 #include <linux/usb.h>
26 #include <linux/videodev2.h>
27 
28 #include "pvrusb2-hdw.h"
29 #include "pvrusb2-devattr.h"
30 #include "pvrusb2-context.h"
31 #include "pvrusb2-debug.h"
32 #include "pvrusb2-v4l2.h"
33 #ifdef CONFIG_VIDEO_PVRUSB2_SYSFS
34 #include "pvrusb2-sysfs.h"
35 #endif /* CONFIG_VIDEO_PVRUSB2_SYSFS */
36 
37 #define DRIVER_AUTHOR "Mike Isely <isely@pobox.com>"
38 #define DRIVER_DESC "Hauppauge WinTV-PVR-USB2 MPEG2 Encoder/Tuner"
39 #define DRIVER_VERSION "V4L in-tree version"
40 
41 #define DEFAULT_DEBUG_MASK (PVR2_TRACE_ERROR_LEGS| \
42 			    PVR2_TRACE_INFO| \
43 			    PVR2_TRACE_STD| \
44 			    PVR2_TRACE_TOLERANCE| \
45 			    PVR2_TRACE_TRAP| \
46 			    0)
47 
48 int pvrusb2_debug = DEFAULT_DEBUG_MASK;
49 
50 module_param_named(debug,pvrusb2_debug,int,S_IRUGO|S_IWUSR);
51 MODULE_PARM_DESC(debug, "Debug trace mask");
52 
53 #ifdef CONFIG_VIDEO_PVRUSB2_SYSFS
54 static struct pvr2_sysfs_class *class_ptr = NULL;
55 #endif /* CONFIG_VIDEO_PVRUSB2_SYSFS */
56 
57 static void pvr_setup_attach(struct pvr2_context *pvr)
58 {
59 	/* Create association with v4l layer */
60 	pvr2_v4l2_create(pvr);
61 #ifdef CONFIG_VIDEO_PVRUSB2_DVB
62 	/* Create association with dvb layer */
63 	pvr2_dvb_create(pvr);
64 #endif
65 #ifdef CONFIG_VIDEO_PVRUSB2_SYSFS
66 	pvr2_sysfs_create(pvr,class_ptr);
67 #endif /* CONFIG_VIDEO_PVRUSB2_SYSFS */
68 }
69 
70 static int pvr_probe(struct usb_interface *intf,
71 		     const struct usb_device_id *devid)
72 {
73 	struct pvr2_context *pvr;
74 
75 	/* Create underlying hardware interface */
76 	pvr = pvr2_context_create(intf,devid,pvr_setup_attach);
77 	if (!pvr) {
78 		pvr2_trace(PVR2_TRACE_ERROR_LEGS,
79 			   "Failed to create hdw handler");
80 		return -ENOMEM;
81 	}
82 
83 	pvr2_trace(PVR2_TRACE_INIT,"pvr_probe(pvr=%p)",pvr);
84 
85 	usb_set_intfdata(intf, pvr);
86 
87 	return 0;
88 }
89 
90 /*
91  * pvr_disconnect()
92  *
93  */
94 static void pvr_disconnect(struct usb_interface *intf)
95 {
96 	struct pvr2_context *pvr = usb_get_intfdata(intf);
97 
98 	pvr2_trace(PVR2_TRACE_INIT,"pvr_disconnect(pvr=%p) BEGIN",pvr);
99 
100 	usb_set_intfdata (intf, NULL);
101 	pvr2_context_disconnect(pvr);
102 
103 	pvr2_trace(PVR2_TRACE_INIT,"pvr_disconnect(pvr=%p) DONE",pvr);
104 
105 }
106 
107 static struct usb_driver pvr_driver = {
108 	.name =         "pvrusb2",
109 	.id_table =     pvr2_device_table,
110 	.probe =        pvr_probe,
111 	.disconnect =   pvr_disconnect
112 };
113 
114 /*
115  * pvr_init() / pvr_exit()
116  *
117  * This code is run to initialize/exit the driver.
118  *
119  */
120 static int __init pvr_init(void)
121 {
122 	int ret;
123 
124 	pvr2_trace(PVR2_TRACE_INIT,"pvr_init");
125 
126 	ret = pvr2_context_global_init();
127 	if (ret != 0) {
128 		pvr2_trace(PVR2_TRACE_INIT,"pvr_init failure code=%d",ret);
129 		return ret;
130 	}
131 
132 #ifdef CONFIG_VIDEO_PVRUSB2_SYSFS
133 	class_ptr = pvr2_sysfs_class_create();
134 #endif /* CONFIG_VIDEO_PVRUSB2_SYSFS */
135 
136 	ret = usb_register(&pvr_driver);
137 
138 	if (ret == 0)
139 		printk(KERN_INFO "pvrusb2: " DRIVER_VERSION ":"
140 		       DRIVER_DESC "\n");
141 	if (pvrusb2_debug)
142 		printk(KERN_INFO "pvrusb2: Debug mask is %d (0x%x)\n",
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 	pvr2_context_global_done();
157 
158 #ifdef CONFIG_VIDEO_PVRUSB2_SYSFS
159 	pvr2_sysfs_class_destroy(class_ptr);
160 #endif /* CONFIG_VIDEO_PVRUSB2_SYSFS */
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 MODULE_VERSION("0.9.1");
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