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14#include "dvb-usb-common.h"
15
16
17int dvb_usb_debug;
18module_param_named(debug, dvb_usb_debug, int, 0644);
19MODULE_PARM_DESC(debug, "set debugging level (1=info,xfer=2,pll=4,ts=8,err=16,rc=32,fw=64,mem=128,uxfer=256 (or-able))." DVB_USB_DEBUG_STATUS);
20
21int dvb_usb_disable_rc_polling;
22module_param_named(disable_rc_polling, dvb_usb_disable_rc_polling, int, 0644);
23MODULE_PARM_DESC(disable_rc_polling, "disable remote control polling (default: 0).");
24
25static int dvb_usb_force_pid_filter_usage;
26module_param_named(force_pid_filter_usage, dvb_usb_force_pid_filter_usage, int, 0444);
27MODULE_PARM_DESC(force_pid_filter_usage, "force all dvb-usb-devices to use a PID filter, if any (default: 0).");
28
29static int dvb_usb_adapter_init(struct dvb_usb_device *d, short *adapter_nrs)
30{
31 struct dvb_usb_adapter *adap;
32 int ret, n, o;
33
34 for (n = 0; n < d->props.num_adapters; n++) {
35 adap = &d->adapter[n];
36 adap->dev = d;
37 adap->id = n;
38
39 memcpy(&adap->props, &d->props.adapter[n], sizeof(struct dvb_usb_adapter_properties));
40
41 for (o = 0; o < adap->props.num_frontends; o++) {
42 struct dvb_usb_adapter_fe_properties *props = &adap->props.fe[o];
43
44 if (d->udev->speed == USB_SPEED_FULL && !(props->caps & DVB_USB_ADAP_HAS_PID_FILTER)) {
45 err("This USB2.0 device cannot be run on a USB1.1 port. (it lacks a hardware PID filter)");
46 return -ENODEV;
47 }
48
49 if ((d->udev->speed == USB_SPEED_FULL && props->caps & DVB_USB_ADAP_HAS_PID_FILTER) ||
50 (props->caps & DVB_USB_ADAP_NEED_PID_FILTERING)) {
51 info("will use the device's hardware PID filter (table count: %d).", props->pid_filter_count);
52 adap->fe_adap[o].pid_filtering = 1;
53 adap->fe_adap[o].max_feed_count = props->pid_filter_count;
54 } else {
55 info("will pass the complete MPEG2 transport stream to the software demuxer.");
56 adap->fe_adap[o].pid_filtering = 0;
57 adap->fe_adap[o].max_feed_count = 255;
58 }
59
60 if (!adap->fe_adap[o].pid_filtering &&
61 dvb_usb_force_pid_filter_usage &&
62 props->caps & DVB_USB_ADAP_HAS_PID_FILTER) {
63 info("pid filter enabled by module option.");
64 adap->fe_adap[o].pid_filtering = 1;
65 adap->fe_adap[o].max_feed_count = props->pid_filter_count;
66 }
67
68 if (props->size_of_priv > 0) {
69 adap->fe_adap[o].priv = kzalloc(props->size_of_priv, GFP_KERNEL);
70 if (adap->fe_adap[o].priv == NULL) {
71 err("no memory for priv for adapter %d fe %d.", n, o);
72 return -ENOMEM;
73 }
74 }
75 }
76
77 if (adap->props.size_of_priv > 0) {
78 adap->priv = kzalloc(adap->props.size_of_priv, GFP_KERNEL);
79 if (adap->priv == NULL) {
80 err("no memory for priv for adapter %d.", n);
81 return -ENOMEM;
82 }
83 }
84
85 if ((ret = dvb_usb_adapter_stream_init(adap)) ||
86 (ret = dvb_usb_adapter_dvb_init(adap, adapter_nrs)) ||
87 (ret = dvb_usb_adapter_frontend_init(adap))) {
88 return ret;
89 }
90
91
92 if (adap->fe_adap[1].fe)
93 adap->dvb_adap.mfe_shared = 1;
94
95 d->num_adapters_initialized++;
96 d->state |= DVB_USB_STATE_DVB;
97 }
98
99
100
101
102
103 if (d->props.generic_bulk_ctrl_endpoint != 0) {
104 usb_clear_halt(d->udev, usb_sndbulkpipe(d->udev, d->props.generic_bulk_ctrl_endpoint));
105 usb_clear_halt(d->udev, usb_rcvbulkpipe(d->udev, d->props.generic_bulk_ctrl_endpoint));
106 }
107
108 return 0;
109}
110
111static int dvb_usb_adapter_exit(struct dvb_usb_device *d)
112{
113 int n;
114
115 for (n = 0; n < d->num_adapters_initialized; n++) {
116 dvb_usb_adapter_frontend_exit(&d->adapter[n]);
117 dvb_usb_adapter_dvb_exit(&d->adapter[n]);
118 dvb_usb_adapter_stream_exit(&d->adapter[n]);
119 kfree(d->adapter[n].priv);
120 }
121 d->num_adapters_initialized = 0;
122 d->state &= ~DVB_USB_STATE_DVB;
123 return 0;
124}
125
126
127
128static int dvb_usb_exit(struct dvb_usb_device *d)
129{
130 deb_info("state before exiting everything: %x\n", d->state);
131 dvb_usb_remote_exit(d);
132 dvb_usb_adapter_exit(d);
133 dvb_usb_i2c_exit(d);
134 deb_info("state should be zero now: %x\n", d->state);
135 d->state = DVB_USB_STATE_INIT;
136 kfree(d->priv);
137 kfree(d);
138 return 0;
139}
140
141static int dvb_usb_init(struct dvb_usb_device *d, short *adapter_nums)
142{
143 int ret = 0;
144
145 mutex_init(&d->data_mutex);
146 mutex_init(&d->usb_mutex);
147 mutex_init(&d->i2c_mutex);
148
149 d->state = DVB_USB_STATE_INIT;
150
151 if (d->props.size_of_priv > 0) {
152 d->priv = kzalloc(d->props.size_of_priv, GFP_KERNEL);
153 if (d->priv == NULL) {
154 err("no memory for priv in 'struct dvb_usb_device'");
155 return -ENOMEM;
156 }
157 }
158
159
160 dvb_usb_device_power_ctrl(d, 1);
161
162 if ((ret = dvb_usb_i2c_init(d)) ||
163 (ret = dvb_usb_adapter_init(d, adapter_nums))) {
164 dvb_usb_exit(d);
165 return ret;
166 }
167
168 if ((ret = dvb_usb_remote_init(d)))
169 err("could not initialize remote control.");
170
171 dvb_usb_device_power_ctrl(d, 0);
172
173 return 0;
174}
175
176
177static struct dvb_usb_device_description *dvb_usb_find_device(struct usb_device *udev, struct dvb_usb_device_properties *props, int *cold)
178{
179 int i, j;
180 struct dvb_usb_device_description *desc = NULL;
181
182 *cold = -1;
183
184 for (i = 0; i < props->num_device_descs; i++) {
185
186 for (j = 0; j < DVB_USB_ID_MAX_NUM && props->devices[i].cold_ids[j] != NULL; j++) {
187 deb_info("check for cold %x %x\n", props->devices[i].cold_ids[j]->idVendor, props->devices[i].cold_ids[j]->idProduct);
188 if (props->devices[i].cold_ids[j]->idVendor == le16_to_cpu(udev->descriptor.idVendor) &&
189 props->devices[i].cold_ids[j]->idProduct == le16_to_cpu(udev->descriptor.idProduct)) {
190 *cold = 1;
191 desc = &props->devices[i];
192 break;
193 }
194 }
195
196 if (desc != NULL)
197 break;
198
199 for (j = 0; j < DVB_USB_ID_MAX_NUM && props->devices[i].warm_ids[j] != NULL; j++) {
200 deb_info("check for warm %x %x\n", props->devices[i].warm_ids[j]->idVendor, props->devices[i].warm_ids[j]->idProduct);
201 if (props->devices[i].warm_ids[j]->idVendor == le16_to_cpu(udev->descriptor.idVendor) &&
202 props->devices[i].warm_ids[j]->idProduct == le16_to_cpu(udev->descriptor.idProduct)) {
203 *cold = 0;
204 desc = &props->devices[i];
205 break;
206 }
207 }
208 }
209
210 if (desc != NULL && props->identify_state != NULL)
211 props->identify_state(udev, props, &desc, cold);
212
213 return desc;
214}
215
216int dvb_usb_device_power_ctrl(struct dvb_usb_device *d, int onoff)
217{
218 if (onoff)
219 d->powered++;
220 else
221 d->powered--;
222
223 if (d->powered == 0 || (onoff && d->powered == 1)) {
224 deb_info("power control: %d\n", onoff);
225 if (d->props.power_ctrl)
226 return d->props.power_ctrl(d, onoff);
227 }
228 return 0;
229}
230
231
232
233
234int dvb_usb_device_init(struct usb_interface *intf,
235 struct dvb_usb_device_properties *props,
236 struct module *owner, struct dvb_usb_device **du,
237 short *adapter_nums)
238{
239 struct usb_device *udev = interface_to_usbdev(intf);
240 struct dvb_usb_device *d = NULL;
241 struct dvb_usb_device_description *desc = NULL;
242
243 int ret = -ENOMEM, cold = 0;
244
245 if (du != NULL)
246 *du = NULL;
247
248 if ((desc = dvb_usb_find_device(udev, props, &cold)) == NULL) {
249 deb_err("something went very wrong, device was not found in current device list - let's see what comes next.\n");
250 return -ENODEV;
251 }
252
253 if (cold) {
254 info("found a '%s' in cold state, will try to load a firmware", desc->name);
255 ret = dvb_usb_download_firmware(udev, props);
256 if (!props->no_reconnect || ret != 0)
257 return ret;
258 }
259
260 info("found a '%s' in warm state.", desc->name);
261 d = kzalloc(sizeof(struct dvb_usb_device), GFP_KERNEL);
262 if (d == NULL) {
263 err("no memory for 'struct dvb_usb_device'");
264 return -ENOMEM;
265 }
266
267 d->udev = udev;
268 memcpy(&d->props, props, sizeof(struct dvb_usb_device_properties));
269 d->desc = desc;
270 d->owner = owner;
271
272 usb_set_intfdata(intf, d);
273
274 if (du != NULL)
275 *du = d;
276
277 ret = dvb_usb_init(d, adapter_nums);
278
279 if (ret == 0)
280 info("%s successfully initialized and connected.", desc->name);
281 else
282 info("%s error while loading driver (%d)", desc->name, ret);
283 return ret;
284}
285EXPORT_SYMBOL(dvb_usb_device_init);
286
287void dvb_usb_device_exit(struct usb_interface *intf)
288{
289 struct dvb_usb_device *d = usb_get_intfdata(intf);
290 const char *name = "generic DVB-USB module";
291
292 usb_set_intfdata(intf, NULL);
293 if (d != NULL && d->desc != NULL) {
294 name = d->desc->name;
295 dvb_usb_exit(d);
296 }
297 info("%s successfully deinitialized and disconnected.", name);
298
299}
300EXPORT_SYMBOL(dvb_usb_device_exit);
301
302MODULE_VERSION("1.0");
303MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@posteo.de>");
304MODULE_DESCRIPTION("A library module containing commonly used USB and DVB function USB DVB devices");
305MODULE_LICENSE("GPL");
306
