1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  *
4  *  Copyright (C) 2005 Mike Isely <isely@pobox.com>
5  *  Copyright (C) 2004 Aurelien Alleaume <slts@free.fr>
6  */
7 
8 #include <linux/kernel.h>
9 #include <linux/errno.h>
10 #include <linux/module.h>
11 #include <linux/usb.h>
12 #include <linux/videodev2.h>
13 
14 #include "pvrusb2-hdw.h"
15 #include "pvrusb2-devattr.h"
16 #include "pvrusb2-context.h"
17 #include "pvrusb2-debug.h"
18 #include "pvrusb2-v4l2.h"
19 #include "pvrusb2-sysfs.h"
20 
21 #define DRIVER_AUTHOR "Mike Isely <isely@pobox.com>"
22 #define DRIVER_DESC "Hauppauge WinTV-PVR-USB2 MPEG2 Encoder/Tuner"
23 #define DRIVER_VERSION "V4L in-tree version"
24 
25 #define DEFAULT_DEBUG_MASK (PVR2_TRACE_ERROR_LEGS| \
26 			    PVR2_TRACE_INFO| \
27 			    PVR2_TRACE_STD| \
28 			    PVR2_TRACE_TOLERANCE| \
29 			    PVR2_TRACE_TRAP| \
30 			    0)
31 
32 int pvrusb2_debug = DEFAULT_DEBUG_MASK;
33 
34 module_param_named(debug,pvrusb2_debug,int,S_IRUGO|S_IWUSR);
35 MODULE_PARM_DESC(debug, "Debug trace mask");
36 
pvr_setup_attach(struct pvr2_context * pvr)37 static void pvr_setup_attach(struct pvr2_context *pvr)
38 {
39 	/* Create association with v4l layer */
40 	pvr2_v4l2_create(pvr);
41 #ifdef CONFIG_VIDEO_PVRUSB2_DVB
42 	/* Create association with dvb layer */
43 	pvr2_dvb_create(pvr);
44 #endif
45 	pvr2_sysfs_create(pvr);
46 }
47 
pvr_probe(struct usb_interface * intf,const struct usb_device_id * devid)48 static int pvr_probe(struct usb_interface *intf,
49 		     const struct usb_device_id *devid)
50 {
51 	struct pvr2_context *pvr;
52 
53 	/* Create underlying hardware interface */
54 	pvr = pvr2_context_create(intf,devid,pvr_setup_attach);
55 	if (!pvr) {
56 		pvr2_trace(PVR2_TRACE_ERROR_LEGS,
57 			   "Failed to create hdw handler");
58 		return -ENOMEM;
59 	}
60 
61 	pvr2_trace(PVR2_TRACE_INIT,"pvr_probe(pvr=%p)",pvr);
62 
63 	usb_set_intfdata(intf, pvr);
64 
65 	return 0;
66 }
67 
68 /*
69  * pvr_disconnect()
70  *
71  */
pvr_disconnect(struct usb_interface * intf)72 static void pvr_disconnect(struct usb_interface *intf)
73 {
74 	struct pvr2_context *pvr = usb_get_intfdata(intf);
75 
76 	pvr2_trace(PVR2_TRACE_INIT,"pvr_disconnect(pvr=%p) BEGIN",pvr);
77 
78 	usb_set_intfdata (intf, NULL);
79 	pvr2_context_disconnect(pvr);
80 
81 	pvr2_trace(PVR2_TRACE_INIT,"pvr_disconnect(pvr=%p) DONE",pvr);
82 
83 }
84 
85 static struct usb_driver pvr_driver = {
86 	.name =         "pvrusb2",
87 	.id_table =     pvr2_device_table,
88 	.probe =        pvr_probe,
89 	.disconnect =   pvr_disconnect
90 };
91 
92 /*
93  * pvr_init() / pvr_exit()
94  *
95  * This code is run to initialize/exit the driver.
96  *
97  */
pvr_init(void)98 static int __init pvr_init(void)
99 {
100 	int ret;
101 
102 	pvr2_trace(PVR2_TRACE_INIT,"pvr_init");
103 
104 	ret = pvr2_context_global_init();
105 	if (ret != 0) {
106 		pvr2_trace(PVR2_TRACE_INIT,"pvr_init failure code=%d",ret);
107 		return ret;
108 	}
109 
110 	pvr2_sysfs_class_create();
111 
112 	ret = usb_register(&pvr_driver);
113 
114 	if (ret == 0)
115 		pr_info("pvrusb2: " DRIVER_VERSION ":"
116 		       DRIVER_DESC "\n");
117 	if (pvrusb2_debug)
118 		pr_info("pvrusb2: Debug mask is %d (0x%x)\n",
119 		       pvrusb2_debug,pvrusb2_debug);
120 
121 	pvr2_trace(PVR2_TRACE_INIT,"pvr_init complete");
122 
123 	return ret;
124 }
125 
pvr_exit(void)126 static void __exit pvr_exit(void)
127 {
128 	pvr2_trace(PVR2_TRACE_INIT,"pvr_exit");
129 
130 	usb_deregister(&pvr_driver);
131 
132 	pvr2_context_global_done();
133 
134 	pvr2_sysfs_class_destroy();
135 
136 	pvr2_trace(PVR2_TRACE_INIT,"pvr_exit complete");
137 }
138 
139 module_init(pvr_init);
140 module_exit(pvr_exit);
141 
142 MODULE_AUTHOR(DRIVER_AUTHOR);
143 MODULE_DESCRIPTION(DRIVER_DESC);
144 MODULE_LICENSE("GPL");
145 MODULE_VERSION("0.9.1");
146