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  */
17 
18 #include <linux/kernel.h>
19 #include <linux/errno.h>
20 #include <linux/module.h>
21 #include <linux/usb.h>
22 #include <linux/videodev2.h>
23 
24 #include "pvrusb2-hdw.h"
25 #include "pvrusb2-devattr.h"
26 #include "pvrusb2-context.h"
27 #include "pvrusb2-debug.h"
28 #include "pvrusb2-v4l2.h"
29 #ifdef CONFIG_VIDEO_PVRUSB2_SYSFS
30 #include "pvrusb2-sysfs.h"
31 #endif /* CONFIG_VIDEO_PVRUSB2_SYSFS */
32 
33 #define DRIVER_AUTHOR "Mike Isely <isely@pobox.com>"
34 #define DRIVER_DESC "Hauppauge WinTV-PVR-USB2 MPEG2 Encoder/Tuner"
35 #define DRIVER_VERSION "V4L in-tree version"
36 
37 #define DEFAULT_DEBUG_MASK (PVR2_TRACE_ERROR_LEGS| \
38 			    PVR2_TRACE_INFO| \
39 			    PVR2_TRACE_STD| \
40 			    PVR2_TRACE_TOLERANCE| \
41 			    PVR2_TRACE_TRAP| \
42 			    0)
43 
44 int pvrusb2_debug = DEFAULT_DEBUG_MASK;
45 
46 module_param_named(debug,pvrusb2_debug,int,S_IRUGO|S_IWUSR);
47 MODULE_PARM_DESC(debug, "Debug trace mask");
48 
49 #ifdef CONFIG_VIDEO_PVRUSB2_SYSFS
50 static struct pvr2_sysfs_class *class_ptr = NULL;
51 #endif /* CONFIG_VIDEO_PVRUSB2_SYSFS */
52 
53 static void pvr_setup_attach(struct pvr2_context *pvr)
54 {
55 	/* Create association with v4l layer */
56 	pvr2_v4l2_create(pvr);
57 #ifdef CONFIG_VIDEO_PVRUSB2_DVB
58 	/* Create association with dvb layer */
59 	pvr2_dvb_create(pvr);
60 #endif
61 #ifdef CONFIG_VIDEO_PVRUSB2_SYSFS
62 	pvr2_sysfs_create(pvr,class_ptr);
63 #endif /* CONFIG_VIDEO_PVRUSB2_SYSFS */
64 }
65 
66 static int pvr_probe(struct usb_interface *intf,
67 		     const struct usb_device_id *devid)
68 {
69 	struct pvr2_context *pvr;
70 
71 	/* Create underlying hardware interface */
72 	pvr = pvr2_context_create(intf,devid,pvr_setup_attach);
73 	if (!pvr) {
74 		pvr2_trace(PVR2_TRACE_ERROR_LEGS,
75 			   "Failed to create hdw handler");
76 		return -ENOMEM;
77 	}
78 
79 	pvr2_trace(PVR2_TRACE_INIT,"pvr_probe(pvr=%p)",pvr);
80 
81 	usb_set_intfdata(intf, pvr);
82 
83 	return 0;
84 }
85 
86 /*
87  * pvr_disconnect()
88  *
89  */
90 static void pvr_disconnect(struct usb_interface *intf)
91 {
92 	struct pvr2_context *pvr = usb_get_intfdata(intf);
93 
94 	pvr2_trace(PVR2_TRACE_INIT,"pvr_disconnect(pvr=%p) BEGIN",pvr);
95 
96 	usb_set_intfdata (intf, NULL);
97 	pvr2_context_disconnect(pvr);
98 
99 	pvr2_trace(PVR2_TRACE_INIT,"pvr_disconnect(pvr=%p) DONE",pvr);
100 
101 }
102 
103 static struct usb_driver pvr_driver = {
104 	.name =         "pvrusb2",
105 	.id_table =     pvr2_device_table,
106 	.probe =        pvr_probe,
107 	.disconnect =   pvr_disconnect
108 };
109 
110 /*
111  * pvr_init() / pvr_exit()
112  *
113  * This code is run to initialize/exit the driver.
114  *
115  */
116 static int __init pvr_init(void)
117 {
118 	int ret;
119 
120 	pvr2_trace(PVR2_TRACE_INIT,"pvr_init");
121 
122 	ret = pvr2_context_global_init();
123 	if (ret != 0) {
124 		pvr2_trace(PVR2_TRACE_INIT,"pvr_init failure code=%d",ret);
125 		return ret;
126 	}
127 
128 #ifdef CONFIG_VIDEO_PVRUSB2_SYSFS
129 	class_ptr = pvr2_sysfs_class_create();
130 #endif /* CONFIG_VIDEO_PVRUSB2_SYSFS */
131 
132 	ret = usb_register(&pvr_driver);
133 
134 	if (ret == 0)
135 		pr_info("pvrusb2: " DRIVER_VERSION ":"
136 		       DRIVER_DESC "\n");
137 	if (pvrusb2_debug)
138 		pr_info("pvrusb2: Debug mask is %d (0x%x)\n",
139 		       pvrusb2_debug,pvrusb2_debug);
140 
141 	pvr2_trace(PVR2_TRACE_INIT,"pvr_init complete");
142 
143 	return ret;
144 }
145 
146 static void __exit pvr_exit(void)
147 {
148 	pvr2_trace(PVR2_TRACE_INIT,"pvr_exit");
149 
150 	usb_deregister(&pvr_driver);
151 
152 	pvr2_context_global_done();
153 
154 #ifdef CONFIG_VIDEO_PVRUSB2_SYSFS
155 	pvr2_sysfs_class_destroy(class_ptr);
156 #endif /* CONFIG_VIDEO_PVRUSB2_SYSFS */
157 
158 	pvr2_trace(PVR2_TRACE_INIT,"pvr_exit complete");
159 }
160 
161 module_init(pvr_init);
162 module_exit(pvr_exit);
163 
164 MODULE_AUTHOR(DRIVER_AUTHOR);
165 MODULE_DESCRIPTION(DRIVER_DESC);
166 MODULE_LICENSE("GPL");
167 MODULE_VERSION("0.9.1");
168