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265a6510 ST |
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" | |
265a6510 ST |
29 | #include "au8522.h" |
30 | #include "xc5000.h" | |
31 | ||
32 | DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); | |
33 | ||
a9c36aad ST |
34 | #define _AU0828_BULKPIPE 0x83 |
35 | #define _BULKPIPESIZE 0xe522 | |
36 | ||
265a6510 ST |
37 | static struct au8522_config hauppauge_hvr950q_config = { |
38 | .demod_address = 0x8e >> 1, | |
39 | .status_mode = AU8522_DEMODLOCKING, | |
40 | }; | |
41 | ||
42 | static struct xc5000_config hauppauge_hvr950q_tunerconfig = { | |
43 | .i2c_address = 0x61, | |
44 | .if_khz = 6000, | |
45 | .tuner_callback = au0828_tuner_callback | |
46 | }; | |
47 | ||
48 | /*-------------------------------------------------------------------*/ | |
49 | static 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 | ||
f07e8e4b | 55 | dprintk(2, "%s()\n", __func__); |
bc3c613c | 56 | |
9c26de55 ST |
57 | if (!dev) |
58 | return; | |
59 | ||
265a6510 ST |
60 | if (dev->urb_streaming == 0) |
61 | return; | |
62 | ||
63 | if (ptype != PIPE_BULK) { | |
f07e8e4b MK |
64 | printk(KERN_ERR "%s() Unsupported URB type %d\n", |
65 | __func__, ptype); | |
265a6510 ST |
66 | return; |
67 | } | |
68 | ||
69 | ptr = (u8 *)purb->transfer_buffer; | |
70 | ||
71 | /* Feed the transport payload into the kernel demux */ | |
a9c36aad ST |
72 | dvb_dmx_swfilter_packets(&dev->dvb.demux, |
73 | purb->transfer_buffer, purb->actual_length / 188); | |
265a6510 ST |
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 | ||
82 | static int stop_urb_transfer(struct au0828_dev *dev) | |
83 | { | |
84 | int i; | |
85 | ||
f07e8e4b | 86 | dprintk(2, "%s()\n", __func__); |
265a6510 | 87 | |
265a6510 ST |
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 | ||
265a6510 ST |
99 | static int start_urb_transfer(struct au0828_dev *dev) |
100 | { | |
101 | struct urb *purb; | |
102 | int i, ret = -ENOMEM; | |
265a6510 | 103 | |
f07e8e4b | 104 | dprintk(2, "%s()\n", __func__); |
265a6510 ST |
105 | |
106 | if (dev->urb_streaming) { | |
f07e8e4b | 107 | dprintk(2, "%s: iso xfer already running!\n", __func__); |
265a6510 ST |
108 | return 0; |
109 | } | |
110 | ||
111 | for (i = 0; i < URB_COUNT; i++) { | |
112 | ||
113 | dev->urbs[i] = usb_alloc_urb(0, GFP_KERNEL); | |
18d73c58 | 114 | if (!dev->urbs[i]) |
265a6510 | 115 | goto err; |
265a6510 ST |
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); | |
a6a3a17b | 122 | dev->urbs[i] = NULL; |
265a6510 ST |
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); | |
f07e8e4b MK |
141 | printk(KERN_ERR "%s: failed urb submission, " |
142 | "err = %d\n", __func__, ret); | |
265a6510 ST |
143 | return ret; |
144 | } | |
145 | } | |
146 | ||
147 | dev->urb_streaming = 1; | |
148 | ret = 0; | |
149 | ||
150 | err: | |
151 | return ret; | |
152 | } | |
153 | ||
154 | static 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 | ||
f07e8e4b | 161 | dprintk(1, "%s()\n", __func__); |
265a6510 ST |
162 | |
163 | if (!demux->dmx.frontend) | |
164 | return -EINVAL; | |
165 | ||
265a6510 ST |
166 | if (dvb) { |
167 | mutex_lock(&dvb->lock); | |
168 | if (dvb->feeding++ == 0) { | |
bc3c613c | 169 | /* Start transport */ |
265a6510 ST |
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 | ||
182 | static 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 | ||
f07e8e4b | 189 | dprintk(1, "%s()\n", __func__); |
265a6510 ST |
190 | |
191 | if (dvb) { | |
192 | mutex_lock(&dvb->lock); | |
193 | if (--dvb->feeding == 0) { | |
bc3c613c | 194 | /* Stop transport */ |
265a6510 ST |
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 | ||
b33d24c4 | 207 | static int dvb_register(struct au0828_dev *dev) |
265a6510 ST |
208 | { |
209 | struct au0828_dvb *dvb = &dev->dvb; | |
210 | int result; | |
211 | ||
f07e8e4b | 212 | dprintk(1, "%s()\n", __func__); |
bc3c613c | 213 | |
265a6510 ST |
214 | /* register adapter */ |
215 | result = dvb_register_adapter(&dvb->adapter, DRIVER_NAME, THIS_MODULE, | |
216 | &dev->usbdev->dev, adapter_nr); | |
217 | if (result < 0) { | |
f07e8e4b MK |
218 | printk(KERN_ERR "%s: dvb_register_adapter failed " |
219 | "(errno = %d)\n", DRIVER_NAME, result); | |
265a6510 ST |
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) { | |
f07e8e4b MK |
227 | printk(KERN_ERR "%s: dvb_register_frontend failed " |
228 | "(errno = %d)\n", DRIVER_NAME, result); | |
265a6510 ST |
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) { | |
bc3c613c | 243 | printk(KERN_ERR "%s: dvb_dmx_init failed (errno = %d)\n", |
265a6510 ST |
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) { | |
bc3c613c | 253 | printk(KERN_ERR "%s: dvb_dmxdev_init failed (errno = %d)\n", |
265a6510 ST |
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) { | |
f07e8e4b MK |
261 | printk(KERN_ERR "%s: add_frontend failed " |
262 | "(DMX_FRONTEND_0, errno = %d)\n", DRIVER_NAME, result); | |
265a6510 ST |
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) { | |
f07e8e4b MK |
269 | printk(KERN_ERR "%s: add_frontend failed " |
270 | "(DMX_MEMORY_FE, errno = %d)\n", DRIVER_NAME, result); | |
265a6510 ST |
271 | goto fail_fe_mem; |
272 | } | |
273 | ||
274 | result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw); | |
275 | if (result < 0) { | |
bc3c613c | 276 | printk(KERN_ERR "%s: connect_frontend failed (errno = %d)\n", |
265a6510 ST |
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 | ||
285 | fail_fe_conn: | |
286 | dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem); | |
287 | fail_fe_mem: | |
288 | dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw); | |
289 | fail_fe_hw: | |
290 | dvb_dmxdev_release(&dvb->dmxdev); | |
291 | fail_dmxdev: | |
292 | dvb_dmx_release(&dvb->demux); | |
293 | fail_dmx: | |
294 | dvb_unregister_frontend(dvb->frontend); | |
295 | fail_frontend: | |
296 | dvb_frontend_detach(dvb->frontend); | |
297 | dvb_unregister_adapter(&dvb->adapter); | |
298 | fail_adapter: | |
299 | return result; | |
300 | } | |
301 | ||
302 | void au0828_dvb_unregister(struct au0828_dev *dev) | |
303 | { | |
304 | struct au0828_dvb *dvb = &dev->dvb; | |
305 | ||
f07e8e4b | 306 | dprintk(1, "%s()\n", __func__); |
bc3c613c | 307 | |
a9c36aad | 308 | if (dvb->frontend == NULL) |
9c26de55 ST |
309 | return; |
310 | ||
265a6510 ST |
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 | */ | |
325 | int au0828_dvb_register(struct au0828_dev *dev) | |
326 | { | |
327 | struct au0828_dvb *dvb = &dev->dvb; | |
328 | int ret; | |
329 | ||
f07e8e4b | 330 | dprintk(1, "%s()\n", __func__); |
bc3c613c | 331 | |
265a6510 ST |
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: | |
f07e8e4b MK |
348 | printk(KERN_WARNING "The frontend of your DVB/ATSC card " |
349 | "isn't supported yet\n"); | |
265a6510 ST |
350 | break; |
351 | } | |
352 | if (NULL == dvb->frontend) { | |
f07e8e4b MK |
353 | printk(KERN_ERR "%s() Frontend initialization failed\n", |
354 | __func__); | |
265a6510 ST |
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 | } |