[PATCH] sparse cleanups: NULL pointers, C99 struct init.
[deliverable/linux.git] / drivers / media / dvb / dvb-usb / dtt200u.c
1 /* DVB USB library compliant Linux driver for the WideView/ Yakumo/ Hama/
2 * Typhoon/ Yuan DVB-T USB2.0 receiver.
3 *
4 * Copyright (C) 2004-5 Patrick Boettcher (patrick.boettcher@desy.de)
5 *
6 * Thanks to Steve Chang from WideView for providing support for the WT-220U.
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the Free
10 * Software Foundation, version 2.
11 *
12 * see Documentation/dvb/README.dvb-usb for more information
13 */
14 #include "dtt200u.h"
15
16 /* debug */
17 int dvb_usb_dtt200u_debug;
18 module_param_named(debug,dvb_usb_dtt200u_debug, int, 0644);
19 MODULE_PARM_DESC(debug, "set debugging level (1=info,xfer=2 (or-able))." DVB_USB_DEBUG_STATUS);
20
21 static int dtt200u_power_ctrl(struct dvb_usb_device *d, int onoff)
22 {
23 u8 b = SET_INIT;
24
25 if (onoff)
26 dvb_usb_generic_write(d,&b,2);
27
28 return 0;
29 }
30
31 static int dtt200u_streaming_ctrl(struct dvb_usb_device *d, int onoff)
32 {
33 u8 b_streaming[2] = { SET_STREAMING, onoff };
34 u8 b_rst_pid = RESET_PID_FILTER;
35
36 dvb_usb_generic_write(d,b_streaming,2);
37
38 if (onoff == 0)
39 dvb_usb_generic_write(d,&b_rst_pid,1);
40 return 0;
41 }
42
43 static int dtt200u_pid_filter(struct dvb_usb_device *d, int index, u16 pid, int onoff)
44 {
45 u8 b_pid[4];
46 pid = onoff ? pid : 0;
47
48 b_pid[0] = SET_PID_FILTER;
49 b_pid[1] = index;
50 b_pid[2] = pid & 0xff;
51 b_pid[3] = (pid >> 8) & 0x1f;
52
53 return dvb_usb_generic_write(d,b_pid,4);
54 }
55
56 /* remote control */
57 /* key list for the tiny remote control (Yakumo, don't know about the others) */
58 static struct dvb_usb_rc_key dtt200u_rc_keys[] = {
59 { 0x80, 0x01, KEY_MUTE },
60 { 0x80, 0x02, KEY_CHANNELDOWN },
61 { 0x80, 0x03, KEY_VOLUMEDOWN },
62 { 0x80, 0x04, KEY_1 },
63 { 0x80, 0x05, KEY_2 },
64 { 0x80, 0x06, KEY_3 },
65 { 0x80, 0x07, KEY_4 },
66 { 0x80, 0x08, KEY_5 },
67 { 0x80, 0x09, KEY_6 },
68 { 0x80, 0x0a, KEY_7 },
69 { 0x80, 0x0c, KEY_ZOOM },
70 { 0x80, 0x0d, KEY_0 },
71 { 0x80, 0x0e, KEY_SELECT },
72 { 0x80, 0x12, KEY_POWER },
73 { 0x80, 0x1a, KEY_CHANNELUP },
74 { 0x80, 0x1b, KEY_8 },
75 { 0x80, 0x1e, KEY_VOLUMEUP },
76 { 0x80, 0x1f, KEY_9 },
77 };
78
79 static int dtt200u_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
80 {
81 u8 key[5],cmd = GET_RC_CODE;
82 dvb_usb_generic_rw(d,&cmd,1,key,5,0);
83 dvb_usb_nec_rc_key_to_event(d,key,event,state);
84 if (key[0] != 0)
85 deb_info("key: %x %x %x %x %x\n",key[0],key[1],key[2],key[3],key[4]);
86 return 0;
87 }
88
89 static int dtt200u_frontend_attach(struct dvb_usb_device *d)
90 {
91 d->fe = dtt200u_fe_attach(d);
92 return 0;
93 }
94
95 static struct dvb_usb_properties dtt200u_properties;
96 static struct dvb_usb_properties wt220u_properties;
97
98 static int dtt200u_usb_probe(struct usb_interface *intf,
99 const struct usb_device_id *id)
100 {
101 if (dvb_usb_device_init(intf,&dtt200u_properties,THIS_MODULE,NULL) == 0 ||
102 dvb_usb_device_init(intf,&wt220u_properties,THIS_MODULE,NULL) == 0)
103 return 0;
104
105 return -ENODEV;
106 }
107
108 static struct usb_device_id dtt200u_usb_table [] = {
109 { USB_DEVICE(USB_VID_WIDEVIEW, USB_PID_DTT200U_COLD) },
110 { USB_DEVICE(USB_VID_WIDEVIEW, USB_PID_DTT200U_WARM) },
111 { USB_DEVICE(USB_VID_WIDEVIEW, USB_PID_WT220U_COLD) },
112 { USB_DEVICE(USB_VID_WIDEVIEW, USB_PID_WT220U_WARM) },
113 { 0 },
114 };
115 MODULE_DEVICE_TABLE(usb, dtt200u_usb_table);
116
117 static struct dvb_usb_properties dtt200u_properties = {
118 .caps = DVB_USB_HAS_PID_FILTER | DVB_USB_NEED_PID_FILTERING,
119 .pid_filter_count = 15,
120
121 .usb_ctrl = CYPRESS_FX2,
122 .firmware = "dvb-usb-dtt200u-01.fw",
123
124 .power_ctrl = dtt200u_power_ctrl,
125 .streaming_ctrl = dtt200u_streaming_ctrl,
126 .pid_filter = dtt200u_pid_filter,
127 .frontend_attach = dtt200u_frontend_attach,
128
129 .rc_interval = 300,
130 .rc_key_map = dtt200u_rc_keys,
131 .rc_key_map_size = ARRAY_SIZE(dtt200u_rc_keys),
132 .rc_query = dtt200u_rc_query,
133
134 .generic_bulk_ctrl_endpoint = 0x01,
135
136 /* parameter for the MPEG2-data transfer */
137 .urb = {
138 .type = DVB_USB_BULK,
139 .count = 7,
140 .endpoint = 0x02,
141 .u = {
142 .bulk = {
143 .buffersize = 4096,
144 }
145 }
146 },
147
148 .num_device_descs = 1,
149 .devices = {
150 { .name = "WideView/Yuan/Yakumo/Hama/Typhoon DVB-T USB2.0 (WT-200U)",
151 .cold_ids = { &dtt200u_usb_table[0], NULL },
152 .warm_ids = { &dtt200u_usb_table[1], NULL },
153 },
154 { NULL },
155 }
156 };
157
158 static struct dvb_usb_properties wt220u_properties = {
159 .caps = DVB_USB_HAS_PID_FILTER | DVB_USB_NEED_PID_FILTERING,
160 .pid_filter_count = 15,
161
162 .usb_ctrl = CYPRESS_FX2,
163 .firmware = "dvb-usb-wt220u-01.fw",
164
165 .power_ctrl = dtt200u_power_ctrl,
166 .streaming_ctrl = dtt200u_streaming_ctrl,
167 .pid_filter = dtt200u_pid_filter,
168 .frontend_attach = dtt200u_frontend_attach,
169
170 .rc_interval = 300,
171 .rc_key_map = dtt200u_rc_keys,
172 .rc_key_map_size = ARRAY_SIZE(dtt200u_rc_keys),
173 .rc_query = dtt200u_rc_query,
174
175 .generic_bulk_ctrl_endpoint = 0x01,
176
177 /* parameter for the MPEG2-data transfer */
178 .urb = {
179 .type = DVB_USB_BULK,
180 .count = 7,
181 .endpoint = 0x02,
182 .u = {
183 .bulk = {
184 .buffersize = 4096,
185 }
186 }
187 },
188
189 .num_device_descs = 1,
190 .devices = {
191 { .name = "WideView WT-220U PenType Receiver (Typhoon/Freecom)",
192 .cold_ids = { &dtt200u_usb_table[2], NULL },
193 .warm_ids = { &dtt200u_usb_table[3], NULL },
194 },
195 { NULL },
196 }
197 };
198
199 /* usb specific object needed to register this driver with the usb subsystem */
200 static struct usb_driver dtt200u_usb_driver = {
201 .owner = THIS_MODULE,
202 .name = "dvb_usb_dtt200u",
203 .probe = dtt200u_usb_probe,
204 .disconnect = dvb_usb_device_exit,
205 .id_table = dtt200u_usb_table,
206 };
207
208 /* module stuff */
209 static int __init dtt200u_usb_module_init(void)
210 {
211 int result;
212 if ((result = usb_register(&dtt200u_usb_driver))) {
213 err("usb_register failed. (%d)",result);
214 return result;
215 }
216
217 return 0;
218 }
219
220 static void __exit dtt200u_usb_module_exit(void)
221 {
222 /* deregister this driver from the USB subsystem */
223 usb_deregister(&dtt200u_usb_driver);
224 }
225
226 module_init(dtt200u_usb_module_init);
227 module_exit(dtt200u_usb_module_exit);
228
229 MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@desy.de>");
230 MODULE_DESCRIPTION("Driver for the WideView/Yakumo/Hama/Typhoon DVB-T USB2.0 devices");
231 MODULE_VERSION("1.0");
232 MODULE_LICENSE("GPL");
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