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[deliverable/linux.git] / drivers / media / dvb / cinergyT2 / cinergyT2.c
1 /*
2 * TerraTec Cinergy T²/qanu USB2 DVB-T adapter.
3 *
4 * Copyright (C) 2004 Daniel Mack <daniel@qanu.de> and
5 * Holger Waechtler <holger@qanu.de>
6 *
7 * Protocol Spec published on http://qanu.de/specs/terratec_cinergyT2.pdf
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 *
23 */
24
25 #include <linux/init.h>
26 #include <linux/module.h>
27 #include <linux/slab.h>
28 #include <linux/usb.h>
29 #include <linux/pci.h>
30 #include <linux/input.h>
31 #include <linux/dvb/frontend.h>
32 #include <linux/mutex.h>
33
34 #include "dmxdev.h"
35 #include "dvb_demux.h"
36 #include "dvb_net.h"
37
38 #ifdef CONFIG_DVB_CINERGYT2_TUNING
39 #define STREAM_URB_COUNT (CONFIG_DVB_CINERGYT2_STREAM_URB_COUNT)
40 #define STREAM_BUF_SIZE (CONFIG_DVB_CINERGYT2_STREAM_BUF_SIZE)
41 #define QUERY_INTERVAL (CONFIG_DVB_CINERGYT2_QUERY_INTERVAL)
42 #ifdef CONFIG_DVB_CINERGYT2_ENABLE_RC_INPUT_DEVICE
43 #define RC_QUERY_INTERVAL (CONFIG_DVB_CINERGYT2_RC_QUERY_INTERVAL)
44 #define ENABLE_RC (1)
45 #endif
46 #else
47 #define STREAM_URB_COUNT (32)
48 #define STREAM_BUF_SIZE (512) /* bytes */
49 #define ENABLE_RC (1)
50 #define RC_QUERY_INTERVAL (50) /* milliseconds */
51 #define QUERY_INTERVAL (333) /* milliseconds */
52 #endif
53
54 #define DRIVER_NAME "TerraTec/qanu USB2.0 Highspeed DVB-T Receiver"
55
56 static int debug;
57 module_param_named(debug, debug, int, 0644);
58 MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off).");
59
60 #define dprintk(level, args...) \
61 do { \
62 if ((debug & level)) { \
63 printk("%s: %s(): ", KBUILD_MODNAME, \
64 __FUNCTION__); \
65 printk(args); } \
66 } while (0)
67
68 enum cinergyt2_ep1_cmd {
69 CINERGYT2_EP1_PID_TABLE_RESET = 0x01,
70 CINERGYT2_EP1_PID_SETUP = 0x02,
71 CINERGYT2_EP1_CONTROL_STREAM_TRANSFER = 0x03,
72 CINERGYT2_EP1_SET_TUNER_PARAMETERS = 0x04,
73 CINERGYT2_EP1_GET_TUNER_STATUS = 0x05,
74 CINERGYT2_EP1_START_SCAN = 0x06,
75 CINERGYT2_EP1_CONTINUE_SCAN = 0x07,
76 CINERGYT2_EP1_GET_RC_EVENTS = 0x08,
77 CINERGYT2_EP1_SLEEP_MODE = 0x09
78 };
79
80 struct dvbt_set_parameters_msg {
81 uint8_t cmd;
82 uint32_t freq;
83 uint8_t bandwidth;
84 uint16_t tps;
85 uint8_t flags;
86 } __attribute__((packed));
87
88 struct dvbt_get_status_msg {
89 uint32_t freq;
90 uint8_t bandwidth;
91 uint16_t tps;
92 uint8_t flags;
93 uint16_t gain;
94 uint8_t snr;
95 uint32_t viterbi_error_rate;
96 uint32_t rs_error_rate;
97 uint32_t uncorrected_block_count;
98 uint8_t lock_bits;
99 uint8_t prev_lock_bits;
100 } __attribute__((packed));
101
102 static struct dvb_frontend_info cinergyt2_fe_info = {
103 .name = DRIVER_NAME,
104 .type = FE_OFDM,
105 .frequency_min = 174000000,
106 .frequency_max = 862000000,
107 .frequency_stepsize = 166667,
108 .caps = FE_CAN_INVERSION_AUTO | FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 |
109 FE_CAN_FEC_3_4 | FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 |
110 FE_CAN_FEC_AUTO |
111 FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
112 FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO |
113 FE_CAN_HIERARCHY_AUTO | FE_CAN_RECOVER | FE_CAN_MUTE_TS
114 };
115
116 struct cinergyt2 {
117 struct dvb_demux demux;
118 struct usb_device *udev;
119 struct mutex sem;
120 struct dvb_adapter adapter;
121 struct dvb_device *fedev;
122 struct dmxdev dmxdev;
123 struct dvb_net dvbnet;
124
125 int streaming;
126 int sleeping;
127
128 struct dvbt_set_parameters_msg param;
129 struct dvbt_get_status_msg status;
130 struct delayed_work query_work;
131
132 wait_queue_head_t poll_wq;
133 int pending_fe_events;
134 int disconnect_pending;
135 atomic_t inuse;
136
137 void *streambuf;
138 dma_addr_t streambuf_dmahandle;
139 struct urb *stream_urb [STREAM_URB_COUNT];
140
141 #ifdef ENABLE_RC
142 struct input_dev *rc_input_dev;
143 char phys[64];
144 struct delayed_work rc_query_work;
145 int rc_input_event;
146 u32 rc_last_code;
147 unsigned long last_event_jiffies;
148 #endif
149 };
150
151 enum {
152 CINERGYT2_RC_EVENT_TYPE_NONE = 0x00,
153 CINERGYT2_RC_EVENT_TYPE_NEC = 0x01,
154 CINERGYT2_RC_EVENT_TYPE_RC5 = 0x02
155 };
156
157 struct cinergyt2_rc_event {
158 char type;
159 uint32_t value;
160 } __attribute__((packed));
161
162 static const uint32_t rc_keys[] = {
163 CINERGYT2_RC_EVENT_TYPE_NEC, 0xfe01eb04, KEY_POWER,
164 CINERGYT2_RC_EVENT_TYPE_NEC, 0xfd02eb04, KEY_1,
165 CINERGYT2_RC_EVENT_TYPE_NEC, 0xfc03eb04, KEY_2,
166 CINERGYT2_RC_EVENT_TYPE_NEC, 0xfb04eb04, KEY_3,
167 CINERGYT2_RC_EVENT_TYPE_NEC, 0xfa05eb04, KEY_4,
168 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf906eb04, KEY_5,
169 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf807eb04, KEY_6,
170 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf708eb04, KEY_7,
171 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf609eb04, KEY_8,
172 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf50aeb04, KEY_9,
173 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf30ceb04, KEY_0,
174 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf40beb04, KEY_VIDEO,
175 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf20deb04, KEY_REFRESH,
176 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf10eeb04, KEY_SELECT,
177 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf00feb04, KEY_EPG,
178 CINERGYT2_RC_EVENT_TYPE_NEC, 0xef10eb04, KEY_UP,
179 CINERGYT2_RC_EVENT_TYPE_NEC, 0xeb14eb04, KEY_DOWN,
180 CINERGYT2_RC_EVENT_TYPE_NEC, 0xee11eb04, KEY_LEFT,
181 CINERGYT2_RC_EVENT_TYPE_NEC, 0xec13eb04, KEY_RIGHT,
182 CINERGYT2_RC_EVENT_TYPE_NEC, 0xed12eb04, KEY_OK,
183 CINERGYT2_RC_EVENT_TYPE_NEC, 0xea15eb04, KEY_TEXT,
184 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe916eb04, KEY_INFO,
185 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe817eb04, KEY_RED,
186 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe718eb04, KEY_GREEN,
187 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe619eb04, KEY_YELLOW,
188 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe51aeb04, KEY_BLUE,
189 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe31ceb04, KEY_VOLUMEUP,
190 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe11eeb04, KEY_VOLUMEDOWN,
191 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe21deb04, KEY_MUTE,
192 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe41beb04, KEY_CHANNELUP,
193 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe01feb04, KEY_CHANNELDOWN,
194 CINERGYT2_RC_EVENT_TYPE_NEC, 0xbf40eb04, KEY_PAUSE,
195 CINERGYT2_RC_EVENT_TYPE_NEC, 0xb34ceb04, KEY_PLAY,
196 CINERGYT2_RC_EVENT_TYPE_NEC, 0xa758eb04, KEY_RECORD,
197 CINERGYT2_RC_EVENT_TYPE_NEC, 0xab54eb04, KEY_PREVIOUS,
198 CINERGYT2_RC_EVENT_TYPE_NEC, 0xb748eb04, KEY_STOP,
199 CINERGYT2_RC_EVENT_TYPE_NEC, 0xa35ceb04, KEY_NEXT
200 };
201
202 static int cinergyt2_command (struct cinergyt2 *cinergyt2,
203 char *send_buf, int send_buf_len,
204 char *recv_buf, int recv_buf_len)
205 {
206 int actual_len;
207 char dummy;
208 int ret;
209
210 ret = usb_bulk_msg(cinergyt2->udev, usb_sndbulkpipe(cinergyt2->udev, 1),
211 send_buf, send_buf_len, &actual_len, 1000);
212
213 if (ret)
214 dprintk(1, "usb_bulk_msg (send) failed, err %i\n", ret);
215
216 if (!recv_buf)
217 recv_buf = &dummy;
218
219 ret = usb_bulk_msg(cinergyt2->udev, usb_rcvbulkpipe(cinergyt2->udev, 1),
220 recv_buf, recv_buf_len, &actual_len, 1000);
221
222 if (ret)
223 dprintk(1, "usb_bulk_msg (read) failed, err %i\n", ret);
224
225 return ret ? ret : actual_len;
226 }
227
228 static void cinergyt2_control_stream_transfer (struct cinergyt2 *cinergyt2, int enable)
229 {
230 char buf [] = { CINERGYT2_EP1_CONTROL_STREAM_TRANSFER, enable ? 1 : 0 };
231 cinergyt2_command(cinergyt2, buf, sizeof(buf), NULL, 0);
232 }
233
234 static void cinergyt2_sleep (struct cinergyt2 *cinergyt2, int sleep)
235 {
236 char buf [] = { CINERGYT2_EP1_SLEEP_MODE, sleep ? 1 : 0 };
237 cinergyt2_command(cinergyt2, buf, sizeof(buf), NULL, 0);
238 cinergyt2->sleeping = sleep;
239 }
240
241 static void cinergyt2_stream_irq (struct urb *urb);
242
243 static int cinergyt2_submit_stream_urb (struct cinergyt2 *cinergyt2, struct urb *urb)
244 {
245 int err;
246
247 usb_fill_bulk_urb(urb,
248 cinergyt2->udev,
249 usb_rcvbulkpipe(cinergyt2->udev, 0x2),
250 urb->transfer_buffer,
251 STREAM_BUF_SIZE,
252 cinergyt2_stream_irq,
253 cinergyt2);
254
255 if ((err = usb_submit_urb(urb, GFP_ATOMIC)))
256 dprintk(1, "urb submission failed (err = %i)!\n", err);
257
258 return err;
259 }
260
261 static void cinergyt2_stream_irq (struct urb *urb)
262 {
263 struct cinergyt2 *cinergyt2 = urb->context;
264
265 if (urb->actual_length > 0)
266 dvb_dmx_swfilter(&cinergyt2->demux,
267 urb->transfer_buffer, urb->actual_length);
268
269 if (cinergyt2->streaming)
270 cinergyt2_submit_stream_urb(cinergyt2, urb);
271 }
272
273 static void cinergyt2_free_stream_urbs (struct cinergyt2 *cinergyt2)
274 {
275 int i;
276
277 for (i=0; i<STREAM_URB_COUNT; i++)
278 if (cinergyt2->stream_urb[i])
279 usb_free_urb(cinergyt2->stream_urb[i]);
280
281 usb_buffer_free(cinergyt2->udev, STREAM_URB_COUNT*STREAM_BUF_SIZE,
282 cinergyt2->streambuf, cinergyt2->streambuf_dmahandle);
283 }
284
285 static int cinergyt2_alloc_stream_urbs (struct cinergyt2 *cinergyt2)
286 {
287 int i;
288
289 cinergyt2->streambuf = usb_buffer_alloc(cinergyt2->udev, STREAM_URB_COUNT*STREAM_BUF_SIZE,
290 SLAB_KERNEL, &cinergyt2->streambuf_dmahandle);
291 if (!cinergyt2->streambuf) {
292 dprintk(1, "failed to alloc consistent stream memory area, bailing out!\n");
293 return -ENOMEM;
294 }
295
296 memset(cinergyt2->streambuf, 0, STREAM_URB_COUNT*STREAM_BUF_SIZE);
297
298 for (i=0; i<STREAM_URB_COUNT; i++) {
299 struct urb *urb;
300
301 if (!(urb = usb_alloc_urb(0, GFP_ATOMIC))) {
302 dprintk(1, "failed to alloc consistent stream urbs, bailing out!\n");
303 cinergyt2_free_stream_urbs(cinergyt2);
304 return -ENOMEM;
305 }
306
307 urb->transfer_buffer = cinergyt2->streambuf + i * STREAM_BUF_SIZE;
308 urb->transfer_buffer_length = STREAM_BUF_SIZE;
309
310 cinergyt2->stream_urb[i] = urb;
311 }
312
313 return 0;
314 }
315
316 static void cinergyt2_stop_stream_xfer (struct cinergyt2 *cinergyt2)
317 {
318 int i;
319
320 cinergyt2_control_stream_transfer(cinergyt2, 0);
321
322 for (i=0; i<STREAM_URB_COUNT; i++)
323 if (cinergyt2->stream_urb[i])
324 usb_kill_urb(cinergyt2->stream_urb[i]);
325 }
326
327 static int cinergyt2_start_stream_xfer (struct cinergyt2 *cinergyt2)
328 {
329 int i, err;
330
331 for (i=0; i<STREAM_URB_COUNT; i++) {
332 if ((err = cinergyt2_submit_stream_urb(cinergyt2, cinergyt2->stream_urb[i]))) {
333 cinergyt2_stop_stream_xfer(cinergyt2);
334 dprintk(1, "failed urb submission (%i: err = %i)!\n", i, err);
335 return err;
336 }
337 }
338
339 cinergyt2_control_stream_transfer(cinergyt2, 1);
340 return 0;
341 }
342
343 static int cinergyt2_start_feed(struct dvb_demux_feed *dvbdmxfeed)
344 {
345 struct dvb_demux *demux = dvbdmxfeed->demux;
346 struct cinergyt2 *cinergyt2 = demux->priv;
347
348 if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
349 return -ERESTARTSYS;
350
351 if (cinergyt2->streaming == 0)
352 cinergyt2_start_stream_xfer(cinergyt2);
353
354 cinergyt2->streaming++;
355 mutex_unlock(&cinergyt2->sem);
356 return 0;
357 }
358
359 static int cinergyt2_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
360 {
361 struct dvb_demux *demux = dvbdmxfeed->demux;
362 struct cinergyt2 *cinergyt2 = demux->priv;
363
364 if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
365 return -ERESTARTSYS;
366
367 if (--cinergyt2->streaming == 0)
368 cinergyt2_stop_stream_xfer(cinergyt2);
369
370 mutex_unlock(&cinergyt2->sem);
371 return 0;
372 }
373
374 /**
375 * convert linux-dvb frontend parameter set into TPS.
376 * See ETSI ETS-300744, section 4.6.2, table 9 for details.
377 *
378 * This function is probably reusable and may better get placed in a support
379 * library.
380 *
381 * We replace errornous fields by default TPS fields (the ones with value 0).
382 */
383 static uint16_t compute_tps (struct dvb_frontend_parameters *p)
384 {
385 struct dvb_ofdm_parameters *op = &p->u.ofdm;
386 uint16_t tps = 0;
387
388 switch (op->code_rate_HP) {
389 case FEC_2_3:
390 tps |= (1 << 7);
391 break;
392 case FEC_3_4:
393 tps |= (2 << 7);
394 break;
395 case FEC_5_6:
396 tps |= (3 << 7);
397 break;
398 case FEC_7_8:
399 tps |= (4 << 7);
400 break;
401 case FEC_1_2:
402 case FEC_AUTO:
403 default:
404 /* tps |= (0 << 7) */;
405 }
406
407 switch (op->code_rate_LP) {
408 case FEC_2_3:
409 tps |= (1 << 4);
410 break;
411 case FEC_3_4:
412 tps |= (2 << 4);
413 break;
414 case FEC_5_6:
415 tps |= (3 << 4);
416 break;
417 case FEC_7_8:
418 tps |= (4 << 4);
419 break;
420 case FEC_1_2:
421 case FEC_AUTO:
422 default:
423 /* tps |= (0 << 4) */;
424 }
425
426 switch (op->constellation) {
427 case QAM_16:
428 tps |= (1 << 13);
429 break;
430 case QAM_64:
431 tps |= (2 << 13);
432 break;
433 case QPSK:
434 default:
435 /* tps |= (0 << 13) */;
436 }
437
438 switch (op->transmission_mode) {
439 case TRANSMISSION_MODE_8K:
440 tps |= (1 << 0);
441 break;
442 case TRANSMISSION_MODE_2K:
443 default:
444 /* tps |= (0 << 0) */;
445 }
446
447 switch (op->guard_interval) {
448 case GUARD_INTERVAL_1_16:
449 tps |= (1 << 2);
450 break;
451 case GUARD_INTERVAL_1_8:
452 tps |= (2 << 2);
453 break;
454 case GUARD_INTERVAL_1_4:
455 tps |= (3 << 2);
456 break;
457 case GUARD_INTERVAL_1_32:
458 default:
459 /* tps |= (0 << 2) */;
460 }
461
462 switch (op->hierarchy_information) {
463 case HIERARCHY_1:
464 tps |= (1 << 10);
465 break;
466 case HIERARCHY_2:
467 tps |= (2 << 10);
468 break;
469 case HIERARCHY_4:
470 tps |= (3 << 10);
471 break;
472 case HIERARCHY_NONE:
473 default:
474 /* tps |= (0 << 10) */;
475 }
476
477 return tps;
478 }
479
480 static int cinergyt2_open (struct inode *inode, struct file *file)
481 {
482 struct dvb_device *dvbdev = file->private_data;
483 struct cinergyt2 *cinergyt2 = dvbdev->priv;
484 int err = -ERESTARTSYS;
485
486 if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
487 return -ERESTARTSYS;
488
489 if ((err = dvb_generic_open(inode, file))) {
490 mutex_unlock(&cinergyt2->sem);
491 return err;
492 }
493
494
495 if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
496 cinergyt2_sleep(cinergyt2, 0);
497 schedule_delayed_work(&cinergyt2->query_work, HZ/2);
498 }
499
500 atomic_inc(&cinergyt2->inuse);
501
502 mutex_unlock(&cinergyt2->sem);
503 return 0;
504 }
505
506 static void cinergyt2_unregister(struct cinergyt2 *cinergyt2)
507 {
508 dvb_net_release(&cinergyt2->dvbnet);
509 dvb_dmxdev_release(&cinergyt2->dmxdev);
510 dvb_dmx_release(&cinergyt2->demux);
511 dvb_unregister_device(cinergyt2->fedev);
512 dvb_unregister_adapter(&cinergyt2->adapter);
513
514 cinergyt2_free_stream_urbs(cinergyt2);
515 kfree(cinergyt2);
516 }
517
518 static int cinergyt2_release (struct inode *inode, struct file *file)
519 {
520 struct dvb_device *dvbdev = file->private_data;
521 struct cinergyt2 *cinergyt2 = dvbdev->priv;
522
523 if (mutex_lock_interruptible(&cinergyt2->sem))
524 return -ERESTARTSYS;
525
526 if (!cinergyt2->disconnect_pending && (file->f_flags & O_ACCMODE) != O_RDONLY) {
527 cancel_delayed_work(&cinergyt2->query_work);
528 flush_scheduled_work();
529 cinergyt2_sleep(cinergyt2, 1);
530 }
531
532 mutex_unlock(&cinergyt2->sem);
533
534 if (atomic_dec_and_test(&cinergyt2->inuse) && cinergyt2->disconnect_pending) {
535 warn("delayed unregister in release");
536 cinergyt2_unregister(cinergyt2);
537 }
538
539 return dvb_generic_release(inode, file);
540 }
541
542 static unsigned int cinergyt2_poll (struct file *file, struct poll_table_struct *wait)
543 {
544 struct dvb_device *dvbdev = file->private_data;
545 struct cinergyt2 *cinergyt2 = dvbdev->priv;
546 unsigned int mask = 0;
547
548 if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
549 return -ERESTARTSYS;
550
551 poll_wait(file, &cinergyt2->poll_wq, wait);
552
553 if (cinergyt2->pending_fe_events != 0)
554 mask |= (POLLIN | POLLRDNORM | POLLPRI);
555
556 mutex_unlock(&cinergyt2->sem);
557
558 return mask;
559 }
560
561
562 static int cinergyt2_ioctl (struct inode *inode, struct file *file,
563 unsigned cmd, unsigned long arg)
564 {
565 struct dvb_device *dvbdev = file->private_data;
566 struct cinergyt2 *cinergyt2 = dvbdev->priv;
567 struct dvbt_get_status_msg *stat = &cinergyt2->status;
568 fe_status_t status = 0;
569
570 switch (cmd) {
571 case FE_GET_INFO:
572 return copy_to_user((void __user*) arg, &cinergyt2_fe_info,
573 sizeof(struct dvb_frontend_info));
574
575 case FE_READ_STATUS:
576 if (0xffff - le16_to_cpu(stat->gain) > 30)
577 status |= FE_HAS_SIGNAL;
578 if (stat->lock_bits & (1 << 6))
579 status |= FE_HAS_LOCK;
580 if (stat->lock_bits & (1 << 5))
581 status |= FE_HAS_SYNC;
582 if (stat->lock_bits & (1 << 4))
583 status |= FE_HAS_CARRIER;
584 if (stat->lock_bits & (1 << 1))
585 status |= FE_HAS_VITERBI;
586
587 return copy_to_user((void __user*) arg, &status, sizeof(status));
588
589 case FE_READ_BER:
590 return put_user(le32_to_cpu(stat->viterbi_error_rate),
591 (__u32 __user *) arg);
592
593 case FE_READ_SIGNAL_STRENGTH:
594 return put_user(0xffff - le16_to_cpu(stat->gain),
595 (__u16 __user *) arg);
596
597 case FE_READ_SNR:
598 return put_user((stat->snr << 8) | stat->snr,
599 (__u16 __user *) arg);
600
601 case FE_READ_UNCORRECTED_BLOCKS:
602 {
603 uint32_t unc_count;
604
605 unc_count = stat->uncorrected_block_count;
606 stat->uncorrected_block_count = 0;
607
608 /* UNC are already converted to host byte order... */
609 return put_user(unc_count,(__u32 __user *) arg);
610 }
611 case FE_SET_FRONTEND:
612 {
613 struct dvbt_set_parameters_msg *param = &cinergyt2->param;
614 struct dvb_frontend_parameters p;
615 int err;
616
617 if ((file->f_flags & O_ACCMODE) == O_RDONLY)
618 return -EPERM;
619
620 if (copy_from_user(&p, (void __user*) arg, sizeof(p)))
621 return -EFAULT;
622
623 if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
624 return -ERESTARTSYS;
625
626 param->cmd = CINERGYT2_EP1_SET_TUNER_PARAMETERS;
627 param->tps = cpu_to_le16(compute_tps(&p));
628 param->freq = cpu_to_le32(p.frequency / 1000);
629 param->bandwidth = 8 - p.u.ofdm.bandwidth - BANDWIDTH_8_MHZ;
630
631 stat->lock_bits = 0;
632 cinergyt2->pending_fe_events++;
633 wake_up_interruptible(&cinergyt2->poll_wq);
634
635 err = cinergyt2_command(cinergyt2,
636 (char *) param, sizeof(*param),
637 NULL, 0);
638
639 mutex_unlock(&cinergyt2->sem);
640
641 return (err < 0) ? err : 0;
642 }
643
644 case FE_GET_FRONTEND:
645 /**
646 * trivial to implement (see struct dvbt_get_status_msg).
647 * equivalent to FE_READ ioctls, but needs
648 * TPS -> linux-dvb parameter set conversion. Feel free
649 * to implement this and send us a patch if you need this
650 * functionality.
651 */
652 break;
653
654 case FE_GET_EVENT:
655 {
656 /**
657 * for now we only fill the status field. the parameters
658 * are trivial to fill as soon FE_GET_FRONTEND is done.
659 */
660 struct dvb_frontend_event __user *e = (void __user *) arg;
661 if (cinergyt2->pending_fe_events == 0) {
662 if (file->f_flags & O_NONBLOCK)
663 return -EWOULDBLOCK;
664 wait_event_interruptible(cinergyt2->poll_wq,
665 cinergyt2->pending_fe_events > 0);
666 }
667 cinergyt2->pending_fe_events = 0;
668 return cinergyt2_ioctl(inode, file, FE_READ_STATUS,
669 (unsigned long) &e->status);
670 }
671
672 default:
673 ;
674 }
675
676 return -EINVAL;
677 }
678
679 static int cinergyt2_mmap(struct file *file, struct vm_area_struct *vma)
680 {
681 struct dvb_device *dvbdev = file->private_data;
682 struct cinergyt2 *cinergyt2 = dvbdev->priv;
683 int ret = 0;
684
685 lock_kernel();
686
687 if (vma->vm_flags & (VM_WRITE | VM_EXEC)) {
688 ret = -EPERM;
689 goto bailout;
690 }
691
692 if (vma->vm_end > vma->vm_start + STREAM_URB_COUNT * STREAM_BUF_SIZE) {
693 ret = -EINVAL;
694 goto bailout;
695 }
696
697 vma->vm_flags |= (VM_IO | VM_DONTCOPY);
698 vma->vm_file = file;
699
700 ret = remap_pfn_range(vma, vma->vm_start,
701 virt_to_phys(cinergyt2->streambuf) >> PAGE_SHIFT,
702 vma->vm_end - vma->vm_start,
703 vma->vm_page_prot) ? -EAGAIN : 0;
704 bailout:
705 unlock_kernel();
706 return ret;
707 }
708
709 static struct file_operations cinergyt2_fops = {
710 .owner = THIS_MODULE,
711 .ioctl = cinergyt2_ioctl,
712 .poll = cinergyt2_poll,
713 .open = cinergyt2_open,
714 .release = cinergyt2_release,
715 .mmap = cinergyt2_mmap
716 };
717
718 static struct dvb_device cinergyt2_fe_template = {
719 .users = ~0,
720 .writers = 1,
721 .readers = (~0)-1,
722 .fops = &cinergyt2_fops
723 };
724
725 #ifdef ENABLE_RC
726
727 static void cinergyt2_query_rc (struct work_struct *work)
728 {
729 struct cinergyt2 *cinergyt2 =
730 container_of(work, struct cinergyt2, rc_query_work.work);
731 char buf[1] = { CINERGYT2_EP1_GET_RC_EVENTS };
732 struct cinergyt2_rc_event rc_events[12];
733 int n, len, i;
734
735 if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
736 return;
737
738 len = cinergyt2_command(cinergyt2, buf, sizeof(buf),
739 (char *) rc_events, sizeof(rc_events));
740 if (len < 0)
741 goto out;
742 if (len == 0) {
743 if (time_after(jiffies, cinergyt2->last_event_jiffies +
744 msecs_to_jiffies(150))) {
745 /* stop key repeat */
746 if (cinergyt2->rc_input_event != KEY_MAX) {
747 dprintk(1, "rc_input_event=%d Up\n", cinergyt2->rc_input_event);
748 input_report_key(cinergyt2->rc_input_dev,
749 cinergyt2->rc_input_event, 0);
750 cinergyt2->rc_input_event = KEY_MAX;
751 }
752 cinergyt2->rc_last_code = ~0;
753 }
754 goto out;
755 }
756 cinergyt2->last_event_jiffies = jiffies;
757
758 for (n = 0; n < (len / sizeof(rc_events[0])); n++) {
759 dprintk(1, "rc_events[%d].value = %x, type=%x\n",
760 n, le32_to_cpu(rc_events[n].value), rc_events[n].type);
761
762 if (rc_events[n].type == CINERGYT2_RC_EVENT_TYPE_NEC &&
763 rc_events[n].value == ~0) {
764 /* keyrepeat bit -> just repeat last rc_input_event */
765 } else {
766 cinergyt2->rc_input_event = KEY_MAX;
767 for (i = 0; i < ARRAY_SIZE(rc_keys); i += 3) {
768 if (rc_keys[i + 0] == rc_events[n].type &&
769 rc_keys[i + 1] == le32_to_cpu(rc_events[n].value)) {
770 cinergyt2->rc_input_event = rc_keys[i + 2];
771 break;
772 }
773 }
774 }
775
776 if (cinergyt2->rc_input_event != KEY_MAX) {
777 if (rc_events[n].value == cinergyt2->rc_last_code &&
778 cinergyt2->rc_last_code != ~0) {
779 /* emit a key-up so the double event is recognized */
780 dprintk(1, "rc_input_event=%d UP\n", cinergyt2->rc_input_event);
781 input_report_key(cinergyt2->rc_input_dev,
782 cinergyt2->rc_input_event, 0);
783 }
784 dprintk(1, "rc_input_event=%d\n", cinergyt2->rc_input_event);
785 input_report_key(cinergyt2->rc_input_dev,
786 cinergyt2->rc_input_event, 1);
787 cinergyt2->rc_last_code = rc_events[n].value;
788 }
789 }
790
791 out:
792 schedule_delayed_work(&cinergyt2->rc_query_work,
793 msecs_to_jiffies(RC_QUERY_INTERVAL));
794
795 mutex_unlock(&cinergyt2->sem);
796 }
797
798 static int cinergyt2_register_rc(struct cinergyt2 *cinergyt2)
799 {
800 struct input_dev *input_dev;
801 int i;
802
803 cinergyt2->rc_input_dev = input_dev = input_allocate_device();
804 if (!input_dev)
805 return -ENOMEM;
806
807 usb_make_path(cinergyt2->udev, cinergyt2->phys, sizeof(cinergyt2->phys));
808 strlcat(cinergyt2->phys, "/input0", sizeof(cinergyt2->phys));
809 cinergyt2->rc_input_event = KEY_MAX;
810 cinergyt2->rc_last_code = ~0;
811 INIT_DELAYED_WORK(&cinergyt2->rc_query_work, cinergyt2_query_rc);
812
813 input_dev->name = DRIVER_NAME " remote control";
814 input_dev->phys = cinergyt2->phys;
815 input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
816 for (i = 0; i < ARRAY_SIZE(rc_keys); i += 3)
817 set_bit(rc_keys[i + 2], input_dev->keybit);
818 input_dev->keycodesize = 0;
819 input_dev->keycodemax = 0;
820
821 input_register_device(cinergyt2->rc_input_dev);
822 schedule_delayed_work(&cinergyt2->rc_query_work, HZ/2);
823
824 return 0;
825 }
826
827 static void cinergyt2_unregister_rc(struct cinergyt2 *cinergyt2)
828 {
829 cancel_delayed_work(&cinergyt2->rc_query_work);
830 input_unregister_device(cinergyt2->rc_input_dev);
831 }
832
833 static inline void cinergyt2_suspend_rc(struct cinergyt2 *cinergyt2)
834 {
835 cancel_delayed_work(&cinergyt2->rc_query_work);
836 }
837
838 static inline void cinergyt2_resume_rc(struct cinergyt2 *cinergyt2)
839 {
840 schedule_delayed_work(&cinergyt2->rc_query_work, HZ/2);
841 }
842
843 #else
844
845 static inline int cinergyt2_register_rc(struct cinergyt2 *cinergyt2) { return 0; }
846 static inline void cinergyt2_unregister_rc(struct cinergyt2 *cinergyt2) { }
847 static inline void cinergyt2_suspend_rc(struct cinergyt2 *cinergyt2) { }
848 static inline void cinergyt2_resume_rc(struct cinergyt2 *cinergyt2) { }
849
850 #endif /* ENABLE_RC */
851
852 static void cinergyt2_query (struct work_struct *work)
853 {
854 struct cinergyt2 *cinergyt2 =
855 container_of(work, struct cinergyt2, query_work.work);
856 char cmd [] = { CINERGYT2_EP1_GET_TUNER_STATUS };
857 struct dvbt_get_status_msg *s = &cinergyt2->status;
858 uint8_t lock_bits;
859 uint32_t unc;
860
861 if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
862 return;
863
864 unc = s->uncorrected_block_count;
865 lock_bits = s->lock_bits;
866
867 cinergyt2_command(cinergyt2, cmd, sizeof(cmd), (char *) s, sizeof(*s));
868
869 unc += le32_to_cpu(s->uncorrected_block_count);
870 s->uncorrected_block_count = unc;
871
872 if (lock_bits != s->lock_bits) {
873 wake_up_interruptible(&cinergyt2->poll_wq);
874 cinergyt2->pending_fe_events++;
875 }
876
877 schedule_delayed_work(&cinergyt2->query_work,
878 msecs_to_jiffies(QUERY_INTERVAL));
879
880 mutex_unlock(&cinergyt2->sem);
881 }
882
883 static int cinergyt2_probe (struct usb_interface *intf,
884 const struct usb_device_id *id)
885 {
886 struct cinergyt2 *cinergyt2;
887 int err;
888
889 if (!(cinergyt2 = kmalloc (sizeof(struct cinergyt2), GFP_KERNEL))) {
890 dprintk(1, "out of memory?!?\n");
891 return -ENOMEM;
892 }
893
894 memset (cinergyt2, 0, sizeof (struct cinergyt2));
895 usb_set_intfdata (intf, (void *) cinergyt2);
896
897 mutex_init(&cinergyt2->sem);
898 init_waitqueue_head (&cinergyt2->poll_wq);
899 INIT_DELAYED_WORK(&cinergyt2->query_work, cinergyt2_query);
900
901 cinergyt2->udev = interface_to_usbdev(intf);
902 cinergyt2->param.cmd = CINERGYT2_EP1_SET_TUNER_PARAMETERS;
903
904 if (cinergyt2_alloc_stream_urbs (cinergyt2) < 0) {
905 dprintk(1, "unable to allocate stream urbs\n");
906 kfree(cinergyt2);
907 return -ENOMEM;
908 }
909
910 if ((err = dvb_register_adapter(&cinergyt2->adapter, DRIVER_NAME, THIS_MODULE, &cinergyt2->udev->dev)) < 0) {
911 kfree(cinergyt2);
912 return err;
913 }
914
915 cinergyt2->demux.priv = cinergyt2;
916 cinergyt2->demux.filternum = 256;
917 cinergyt2->demux.feednum = 256;
918 cinergyt2->demux.start_feed = cinergyt2_start_feed;
919 cinergyt2->demux.stop_feed = cinergyt2_stop_feed;
920 cinergyt2->demux.dmx.capabilities = DMX_TS_FILTERING |
921 DMX_SECTION_FILTERING |
922 DMX_MEMORY_BASED_FILTERING;
923
924 if ((err = dvb_dmx_init(&cinergyt2->demux)) < 0) {
925 dprintk(1, "dvb_dmx_init() failed (err = %d)\n", err);
926 goto bailout;
927 }
928
929 cinergyt2->dmxdev.filternum = cinergyt2->demux.filternum;
930 cinergyt2->dmxdev.demux = &cinergyt2->demux.dmx;
931 cinergyt2->dmxdev.capabilities = 0;
932
933 if ((err = dvb_dmxdev_init(&cinergyt2->dmxdev, &cinergyt2->adapter)) < 0) {
934 dprintk(1, "dvb_dmxdev_init() failed (err = %d)\n", err);
935 goto bailout;
936 }
937
938 if (dvb_net_init(&cinergyt2->adapter, &cinergyt2->dvbnet, &cinergyt2->demux.dmx))
939 dprintk(1, "dvb_net_init() failed!\n");
940
941 dvb_register_device(&cinergyt2->adapter, &cinergyt2->fedev,
942 &cinergyt2_fe_template, cinergyt2,
943 DVB_DEVICE_FRONTEND);
944
945 err = cinergyt2_register_rc(cinergyt2);
946 if (err)
947 goto bailout;
948
949 return 0;
950
951 bailout:
952 dvb_net_release(&cinergyt2->dvbnet);
953 dvb_dmxdev_release(&cinergyt2->dmxdev);
954 dvb_dmx_release(&cinergyt2->demux);
955 dvb_unregister_adapter(&cinergyt2->adapter);
956 cinergyt2_free_stream_urbs(cinergyt2);
957 kfree(cinergyt2);
958 return -ENOMEM;
959 }
960
961 static void cinergyt2_disconnect (struct usb_interface *intf)
962 {
963 struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
964
965 flush_scheduled_work();
966
967 cinergyt2_unregister_rc(cinergyt2);
968
969 cancel_delayed_work(&cinergyt2->query_work);
970 wake_up_interruptible(&cinergyt2->poll_wq);
971
972 cinergyt2->demux.dmx.close(&cinergyt2->demux.dmx);
973 cinergyt2->disconnect_pending = 1;
974
975 if (!atomic_read(&cinergyt2->inuse))
976 cinergyt2_unregister(cinergyt2);
977 }
978
979 static int cinergyt2_suspend (struct usb_interface *intf, pm_message_t state)
980 {
981 struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
982
983 if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
984 return -ERESTARTSYS;
985
986 if (1) {
987 struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
988
989 cinergyt2_suspend_rc(cinergyt2);
990 cancel_delayed_work(&cinergyt2->query_work);
991 if (cinergyt2->streaming)
992 cinergyt2_stop_stream_xfer(cinergyt2);
993 flush_scheduled_work();
994 cinergyt2_sleep(cinergyt2, 1);
995 }
996
997 mutex_unlock(&cinergyt2->sem);
998 return 0;
999 }
1000
1001 static int cinergyt2_resume (struct usb_interface *intf)
1002 {
1003 struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
1004 struct dvbt_set_parameters_msg *param = &cinergyt2->param;
1005
1006 if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
1007 return -ERESTARTSYS;
1008
1009 if (!cinergyt2->sleeping) {
1010 cinergyt2_sleep(cinergyt2, 0);
1011 cinergyt2_command(cinergyt2, (char *) param, sizeof(*param), NULL, 0);
1012 if (cinergyt2->streaming)
1013 cinergyt2_start_stream_xfer(cinergyt2);
1014 schedule_delayed_work(&cinergyt2->query_work, HZ/2);
1015 }
1016
1017 cinergyt2_resume_rc(cinergyt2);
1018
1019 mutex_unlock(&cinergyt2->sem);
1020 return 0;
1021 }
1022
1023 static const struct usb_device_id cinergyt2_table [] __devinitdata = {
1024 { USB_DEVICE(0x0ccd, 0x0038) },
1025 { 0 }
1026 };
1027
1028 MODULE_DEVICE_TABLE(usb, cinergyt2_table);
1029
1030 static struct usb_driver cinergyt2_driver = {
1031 .name = "cinergyT2",
1032 .probe = cinergyt2_probe,
1033 .disconnect = cinergyt2_disconnect,
1034 .suspend = cinergyt2_suspend,
1035 .resume = cinergyt2_resume,
1036 .id_table = cinergyt2_table
1037 };
1038
1039 static int __init cinergyt2_init (void)
1040 {
1041 int err;
1042
1043 if ((err = usb_register(&cinergyt2_driver)) < 0)
1044 dprintk(1, "usb_register() failed! (err %i)\n", err);
1045
1046 return err;
1047 }
1048
1049 static void __exit cinergyt2_exit (void)
1050 {
1051 usb_deregister(&cinergyt2_driver);
1052 }
1053
1054 module_init (cinergyt2_init);
1055 module_exit (cinergyt2_exit);
1056
1057 MODULE_LICENSE("GPL");
1058 MODULE_AUTHOR("Holger Waechtler, Daniel Mack");
Linux kernel - Deliverables
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