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Diffstat (limited to 'drivers/media/video/au0828/au0828-dvb.c')
-rw-r--r--drivers/media/video/au0828/au0828-dvb.c373
1 files changed, 373 insertions, 0 deletions
diff --git a/drivers/media/video/au0828/au0828-dvb.c b/drivers/media/video/au0828/au0828-dvb.c
new file mode 100644
index 000000000000..85d0ae9a322f
--- /dev/null
+++ b/drivers/media/video/au0828/au0828-dvb.c
@@ -0,0 +1,373 @@
1/*
2 * Driver for the Auvitek USB bridge
3 *
4 * Copyright (c) 2008 Steven Toth <stoth@hauppauge.com>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
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 *
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 */
21
22#include <linux/module.h>
23#include <linux/init.h>
24#include <linux/device.h>
25#include <linux/suspend.h>
26#include <media/v4l2-common.h>
27
28#include "au0828.h"
29#include "au8522.h"
30#include "xc5000.h"
31
32DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
33
34#define _AU0828_BULKPIPE 0x83
35#define _BULKPIPESIZE 0xe522
36
37static struct au8522_config hauppauge_hvr950q_config = {
38 .demod_address = 0x8e >> 1,
39 .status_mode = AU8522_DEMODLOCKING,
40};
41
42static struct xc5000_config hauppauge_hvr950q_tunerconfig = {
43 .i2c_address = 0x61,
44 .if_khz = 6000,
45 .tuner_callback = au0828_tuner_callback
46};
47
48/*-------------------------------------------------------------------*/
49static void urb_completion(struct urb *purb)
50{
51 u8 *ptr;
52 struct au0828_dev *dev = purb->context;
53 int ptype = usb_pipetype(purb->pipe);
54
55 dprintk(2, "%s()\n", __func__);
56
57 if (!dev)
58 return;
59
60 if (dev->urb_streaming == 0)
61 return;
62
63 if (ptype != PIPE_BULK) {
64 printk(KERN_ERR "%s() Unsupported URB type %d\n",
65 __func__, ptype);
66 return;
67 }
68
69 ptr = (u8 *)purb->transfer_buffer;
70
71 /* Feed the transport payload into the kernel demux */
72 dvb_dmx_swfilter_packets(&dev->dvb.demux,
73 purb->transfer_buffer, purb->actual_length / 188);
74
75 /* Clean the buffer before we requeue */
76 memset(purb->transfer_buffer, 0, URB_BUFSIZE);
77
78 /* Requeue URB */
79 usb_submit_urb(purb, GFP_ATOMIC);
80}
81
82static int stop_urb_transfer(struct au0828_dev *dev)
83{
84 int i;
85
86 dprintk(2, "%s()\n", __func__);
87
88 for (i = 0; i < URB_COUNT; i++) {
89 usb_kill_urb(dev->urbs[i]);
90 kfree(dev->urbs[i]->transfer_buffer);
91 usb_free_urb(dev->urbs[i]);
92 }
93
94 dev->urb_streaming = 0;
95
96 return 0;
97}
98
99static int start_urb_transfer(struct au0828_dev *dev)
100{
101 struct urb *purb;
102 int i, ret = -ENOMEM;
103
104 dprintk(2, "%s()\n", __func__);
105
106 if (dev->urb_streaming) {
107 dprintk(2, "%s: iso xfer already running!\n", __func__);
108 return 0;
109 }
110
111 for (i = 0; i < URB_COUNT; i++) {
112
113 dev->urbs[i] = usb_alloc_urb(0, GFP_KERNEL);
114 if (!dev->urbs[i])
115 goto err;
116
117 purb = dev->urbs[i];
118
119 purb->transfer_buffer = kzalloc(URB_BUFSIZE, GFP_KERNEL);
120 if (!purb->transfer_buffer) {
121 usb_free_urb(purb);
122 dev->urbs[i] = 0;
123 goto err;
124 }
125
126 purb->status = -EINPROGRESS;
127 usb_fill_bulk_urb(purb,
128 dev->usbdev,
129 usb_rcvbulkpipe(dev->usbdev, _AU0828_BULKPIPE),
130 purb->transfer_buffer,
131 URB_BUFSIZE,
132 urb_completion,
133 dev);
134
135 }
136
137 for (i = 0; i < URB_COUNT; i++) {
138 ret = usb_submit_urb(dev->urbs[i], GFP_ATOMIC);
139 if (ret != 0) {
140 stop_urb_transfer(dev);
141 printk(KERN_ERR "%s: failed urb submission, "
142 "err = %d\n", __func__, ret);
143 return ret;
144 }
145 }
146
147 dev->urb_streaming = 1;
148 ret = 0;
149
150err:
151 return ret;
152}
153
154static int au0828_dvb_start_feed(struct dvb_demux_feed *feed)
155{
156 struct dvb_demux *demux = feed->demux;
157 struct au0828_dev *dev = (struct au0828_dev *) demux->priv;
158 struct au0828_dvb *dvb = &dev->dvb;
159 int ret = 0;
160
161 dprintk(1, "%s()\n", __func__);
162
163 if (!demux->dmx.frontend)
164 return -EINVAL;
165
166 if (dvb) {
167 mutex_lock(&dvb->lock);
168 if (dvb->feeding++ == 0) {
169 /* Start transport */
170 au0828_write(dev, 0x608, 0x90);
171 au0828_write(dev, 0x609, 0x72);
172 au0828_write(dev, 0x60a, 0x71);
173 au0828_write(dev, 0x60b, 0x01);
174 ret = start_urb_transfer(dev);
175 }
176 mutex_unlock(&dvb->lock);
177 }
178
179 return ret;
180}
181
182static int au0828_dvb_stop_feed(struct dvb_demux_feed *feed)
183{
184 struct dvb_demux *demux = feed->demux;
185 struct au0828_dev *dev = (struct au0828_dev *) demux->priv;
186 struct au0828_dvb *dvb = &dev->dvb;
187 int ret = 0;
188
189 dprintk(1, "%s()\n", __func__);
190
191 if (dvb) {
192 mutex_lock(&dvb->lock);
193 if (--dvb->feeding == 0) {
194 /* Stop transport */
195 au0828_write(dev, 0x608, 0x00);
196 au0828_write(dev, 0x609, 0x00);
197 au0828_write(dev, 0x60a, 0x00);
198 au0828_write(dev, 0x60b, 0x00);
199 ret = stop_urb_transfer(dev);
200 }
201 mutex_unlock(&dvb->lock);
202 }
203
204 return ret;
205}
206
207int dvb_register(struct au0828_dev *dev)
208{
209 struct au0828_dvb *dvb = &dev->dvb;
210 int result;
211
212 dprintk(1, "%s()\n", __func__);
213
214 /* register adapter */
215 result = dvb_register_adapter(&dvb->adapter, DRIVER_NAME, THIS_MODULE,
216 &dev->usbdev->dev, adapter_nr);
217 if (result < 0) {
218 printk(KERN_ERR "%s: dvb_register_adapter failed "
219 "(errno = %d)\n", DRIVER_NAME, result);
220 goto fail_adapter;
221 }
222 dvb->adapter.priv = dev;
223
224 /* register frontend */
225 result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
226 if (result < 0) {
227 printk(KERN_ERR "%s: dvb_register_frontend failed "
228 "(errno = %d)\n", DRIVER_NAME, result);
229 goto fail_frontend;
230 }
231
232 /* register demux stuff */
233 dvb->demux.dmx.capabilities =
234 DMX_TS_FILTERING | DMX_SECTION_FILTERING |
235 DMX_MEMORY_BASED_FILTERING;
236 dvb->demux.priv = dev;
237 dvb->demux.filternum = 256;
238 dvb->demux.feednum = 256;
239 dvb->demux.start_feed = au0828_dvb_start_feed;
240 dvb->demux.stop_feed = au0828_dvb_stop_feed;
241 result = dvb_dmx_init(&dvb->demux);
242 if (result < 0) {
243 printk(KERN_ERR "%s: dvb_dmx_init failed (errno = %d)\n",
244 DRIVER_NAME, result);
245 goto fail_dmx;
246 }
247
248 dvb->dmxdev.filternum = 256;
249 dvb->dmxdev.demux = &dvb->demux.dmx;
250 dvb->dmxdev.capabilities = 0;
251 result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
252 if (result < 0) {
253 printk(KERN_ERR "%s: dvb_dmxdev_init failed (errno = %d)\n",
254 DRIVER_NAME, result);
255 goto fail_dmxdev;
256 }
257
258 dvb->fe_hw.source = DMX_FRONTEND_0;
259 result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
260 if (result < 0) {
261 printk(KERN_ERR "%s: add_frontend failed "
262 "(DMX_FRONTEND_0, errno = %d)\n", DRIVER_NAME, result);
263 goto fail_fe_hw;
264 }
265
266 dvb->fe_mem.source = DMX_MEMORY_FE;
267 result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
268 if (result < 0) {
269 printk(KERN_ERR "%s: add_frontend failed "
270 "(DMX_MEMORY_FE, errno = %d)\n", DRIVER_NAME, result);
271 goto fail_fe_mem;
272 }
273
274 result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
275 if (result < 0) {
276 printk(KERN_ERR "%s: connect_frontend failed (errno = %d)\n",
277 DRIVER_NAME, result);
278 goto fail_fe_conn;
279 }
280
281 /* register network adapter */
282 dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
283 return 0;
284
285fail_fe_conn:
286 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
287fail_fe_mem:
288 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
289fail_fe_hw:
290 dvb_dmxdev_release(&dvb->dmxdev);
291fail_dmxdev:
292 dvb_dmx_release(&dvb->demux);
293fail_dmx:
294 dvb_unregister_frontend(dvb->frontend);
295fail_frontend:
296 dvb_frontend_detach(dvb->frontend);
297 dvb_unregister_adapter(&dvb->adapter);
298fail_adapter:
299 return result;
300}
301
302void au0828_dvb_unregister(struct au0828_dev *dev)
303{
304 struct au0828_dvb *dvb = &dev->dvb;
305
306 dprintk(1, "%s()\n", __func__);
307
308 if (dvb->frontend == NULL)
309 return;
310
311 dvb_net_release(&dvb->net);
312 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
313 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
314 dvb_dmxdev_release(&dvb->dmxdev);
315 dvb_dmx_release(&dvb->demux);
316 dvb_unregister_frontend(dvb->frontend);
317 dvb_frontend_detach(dvb->frontend);
318 dvb_unregister_adapter(&dvb->adapter);
319}
320
321/* All the DVB attach calls go here, this function get's modified
322 * for each new card. No other function in this file needs
323 * to change.
324 */
325int au0828_dvb_register(struct au0828_dev *dev)
326{
327 struct au0828_dvb *dvb = &dev->dvb;
328 int ret;
329
330 dprintk(1, "%s()\n", __func__);
331
332 /* init frontend */
333 switch (dev->board) {
334 case AU0828_BOARD_HAUPPAUGE_HVR850:
335 case AU0828_BOARD_HAUPPAUGE_HVR950Q:
336 case AU0828_BOARD_DVICO_FUSIONHDTV7:
337 dvb->frontend = dvb_attach(au8522_attach,
338 &hauppauge_hvr950q_config,
339 &dev->i2c_adap);
340 if (dvb->frontend != NULL) {
341 hauppauge_hvr950q_tunerconfig.priv = dev;
342 dvb_attach(xc5000_attach, dvb->frontend,
343 &dev->i2c_adap,
344 &hauppauge_hvr950q_tunerconfig);
345 }
346 break;
347 default:
348 printk(KERN_WARNING "The frontend of your DVB/ATSC card "
349 "isn't supported yet\n");
350 break;
351 }
352 if (NULL == dvb->frontend) {
353 printk(KERN_ERR "%s() Frontend initialization failed\n",
354 __func__);
355 return -1;
356 }
357
358 /* Put the analog decoder in standby to keep it quiet */
359 au0828_call_i2c_clients(dev, TUNER_SET_STANDBY, NULL);
360
361 if (dvb->frontend->ops.analog_ops.standby)
362 dvb->frontend->ops.analog_ops.standby(dvb->frontend);
363
364 /* register everything */
365 ret = dvb_register(dev);
366 if (ret < 0) {
367 if (dvb->frontend->ops.release)
368 dvb->frontend->ops.release(dvb->frontend);
369 return ret;
370 }
371
372 return 0;
373}
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