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Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
[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/config.h>
26 #include <linux/init.h>
27 #include <linux/module.h>
28 #include <linux/slab.h>
29 #include <linux/usb.h>
30 #include <linux/pci.h>
31 #include <linux/input.h>
32 #include <linux/dvb/frontend.h>
33 #include <linux/mutex.h>
34
35 #include "dmxdev.h"
36 #include "dvb_demux.h"
37 #include "dvb_net.h"
38
39 #ifdef CONFIG_DVB_CINERGYT2_TUNING
40 #define STREAM_URB_COUNT (CONFIG_DVB_CINERGYT2_STREAM_URB_COUNT)
41 #define STREAM_BUF_SIZE (CONFIG_DVB_CINERGYT2_STREAM_BUF_SIZE)
42 #define QUERY_INTERVAL (CONFIG_DVB_CINERGYT2_QUERY_INTERVAL)
43 #ifdef CONFIG_DVB_CINERGYT2_ENABLE_RC_INPUT_DEVICE
44 #define RC_QUERY_INTERVAL (CONFIG_DVB_CINERGYT2_RC_QUERY_INTERVAL)
45 #define ENABLE_RC (1)
46 #endif
47 #else
48 #define STREAM_URB_COUNT (32)
49 #define STREAM_BUF_SIZE (512) /* bytes */
50 #define ENABLE_RC (1)
51 #define RC_QUERY_INTERVAL (50) /* milliseconds */
52 #define QUERY_INTERVAL (333) /* milliseconds */
53 #endif
54
55 #define DRIVER_NAME "TerraTec/qanu USB2.0 Highspeed DVB-T Receiver"
56
57 static int debug;
58 module_param_named(debug, debug, int, 0644);
59 MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off).");
60
61 #define dprintk(level, args...) \
62 do { \
63 if ((debug & level)) { \
64 printk("%s: %s(): ", KBUILD_MODNAME, \
65 __FUNCTION__); \
66 printk(args); } \
67 } while (0)
68
69 enum cinergyt2_ep1_cmd {
70 CINERGYT2_EP1_PID_TABLE_RESET = 0x01,
71 CINERGYT2_EP1_PID_SETUP = 0x02,
72 CINERGYT2_EP1_CONTROL_STREAM_TRANSFER = 0x03,
73 CINERGYT2_EP1_SET_TUNER_PARAMETERS = 0x04,
74 CINERGYT2_EP1_GET_TUNER_STATUS = 0x05,
75 CINERGYT2_EP1_START_SCAN = 0x06,
76 CINERGYT2_EP1_CONTINUE_SCAN = 0x07,
77 CINERGYT2_EP1_GET_RC_EVENTS = 0x08,
78 CINERGYT2_EP1_SLEEP_MODE = 0x09
79 };
80
81 struct dvbt_set_parameters_msg {
82 uint8_t cmd;
83 uint32_t freq;
84 uint8_t bandwidth;
85 uint16_t tps;
86 uint8_t flags;
87 } __attribute__((packed));
88
89 struct dvbt_get_status_msg {
90 uint32_t freq;
91 uint8_t bandwidth;
92 uint16_t tps;
93 uint8_t flags;
94 uint16_t gain;
95 uint8_t snr;
96 uint32_t viterbi_error_rate;
97 uint32_t rs_error_rate;
98 uint32_t uncorrected_block_count;
99 uint8_t lock_bits;
100 uint8_t prev_lock_bits;
101 } __attribute__((packed));
102
103 static struct dvb_frontend_info cinergyt2_fe_info = {
104 .name = DRIVER_NAME,
105 .type = FE_OFDM,
106 .frequency_min = 174000000,
107 .frequency_max = 862000000,
108 .frequency_stepsize = 166667,
109 .caps = FE_CAN_INVERSION_AUTO | FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 |
110 FE_CAN_FEC_3_4 | FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 |
111 FE_CAN_FEC_AUTO |
112 FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
113 FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO |
114 FE_CAN_HIERARCHY_AUTO | FE_CAN_RECOVER | FE_CAN_MUTE_TS
115 };
116
117 struct cinergyt2 {
118 struct dvb_demux demux;
119 struct usb_device *udev;
120 struct mutex sem;
121 struct dvb_adapter adapter;
122 struct dvb_device *fedev;
123 struct dmxdev dmxdev;
124 struct dvb_net dvbnet;
125
126 int streaming;
127 int sleeping;
128
129 struct dvbt_set_parameters_msg param;
130 struct dvbt_get_status_msg status;
131 struct work_struct query_work;
132
133 wait_queue_head_t poll_wq;
134 int pending_fe_events;
135 int disconnect_pending;
136 atomic_t inuse;
137
138 void *streambuf;
139 dma_addr_t streambuf_dmahandle;
140 struct urb *stream_urb [STREAM_URB_COUNT];
141
142 #ifdef ENABLE_RC
143 struct input_dev *rc_input_dev;
144 char phys[64];
145 struct work_struct rc_query_work;
146 int rc_input_event;
147 u32 rc_last_code;
148 unsigned long last_event_jiffies;
149 #endif
150 };
151
152 enum {
153 CINERGYT2_RC_EVENT_TYPE_NONE = 0x00,
154 CINERGYT2_RC_EVENT_TYPE_NEC = 0x01,
155 CINERGYT2_RC_EVENT_TYPE_RC5 = 0x02
156 };
157
158 struct cinergyt2_rc_event {
159 char type;
160 uint32_t value;
161 } __attribute__((packed));
162
163 static const uint32_t rc_keys[] = {
164 CINERGYT2_RC_EVENT_TYPE_NEC, 0xfe01eb04, KEY_POWER,
165 CINERGYT2_RC_EVENT_TYPE_NEC, 0xfd02eb04, KEY_1,
166 CINERGYT2_RC_EVENT_TYPE_NEC, 0xfc03eb04, KEY_2,
167 CINERGYT2_RC_EVENT_TYPE_NEC, 0xfb04eb04, KEY_3,
168 CINERGYT2_RC_EVENT_TYPE_NEC, 0xfa05eb04, KEY_4,
169 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf906eb04, KEY_5,
170 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf807eb04, KEY_6,
171 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf708eb04, KEY_7,
172 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf609eb04, KEY_8,
173 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf50aeb04, KEY_9,
174 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf30ceb04, KEY_0,
175 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf40beb04, KEY_VIDEO,
176 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf20deb04, KEY_REFRESH,
177 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf10eeb04, KEY_SELECT,
178 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf00feb04, KEY_EPG,
179 CINERGYT2_RC_EVENT_TYPE_NEC, 0xef10eb04, KEY_UP,
180 CINERGYT2_RC_EVENT_TYPE_NEC, 0xeb14eb04, KEY_DOWN,
181 CINERGYT2_RC_EVENT_TYPE_NEC, 0xee11eb04, KEY_LEFT,
182 CINERGYT2_RC_EVENT_TYPE_NEC, 0xec13eb04, KEY_RIGHT,
183 CINERGYT2_RC_EVENT_TYPE_NEC, 0xed12eb04, KEY_OK,
184 CINERGYT2_RC_EVENT_TYPE_NEC, 0xea15eb04, KEY_TEXT,
185 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe916eb04, KEY_INFO,
186 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe817eb04, KEY_RED,
187 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe718eb04, KEY_GREEN,
188 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe619eb04, KEY_YELLOW,
189 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe51aeb04, KEY_BLUE,
190 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe31ceb04, KEY_VOLUMEUP,
191 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe11eeb04, KEY_VOLUMEDOWN,
192 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe21deb04, KEY_MUTE,
193 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe41beb04, KEY_CHANNELUP,
194 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe01feb04, KEY_CHANNELDOWN,
195 CINERGYT2_RC_EVENT_TYPE_NEC, 0xbf40eb04, KEY_PAUSE,
196 CINERGYT2_RC_EVENT_TYPE_NEC, 0xb34ceb04, KEY_PLAY,
197 CINERGYT2_RC_EVENT_TYPE_NEC, 0xa758eb04, KEY_RECORD,
198 CINERGYT2_RC_EVENT_TYPE_NEC, 0xab54eb04, KEY_PREVIOUS,
199 CINERGYT2_RC_EVENT_TYPE_NEC, 0xb748eb04, KEY_STOP,
200 CINERGYT2_RC_EVENT_TYPE_NEC, 0xa35ceb04, KEY_NEXT
201 };
202
203 static int cinergyt2_command (struct cinergyt2 *cinergyt2,
204 char *send_buf, int send_buf_len,
205 char *recv_buf, int recv_buf_len)
206 {
207 int actual_len;
208 char dummy;
209 int ret;
210
211 ret = usb_bulk_msg(cinergyt2->udev, usb_sndbulkpipe(cinergyt2->udev, 1),
212 send_buf, send_buf_len, &actual_len, 1000);
213
214 if (ret)
215 dprintk(1, "usb_bulk_msg (send) failed, err %i\n", ret);
216
217 if (!recv_buf)
218 recv_buf = &dummy;
219
220 ret = usb_bulk_msg(cinergyt2->udev, usb_rcvbulkpipe(cinergyt2->udev, 1),
221 recv_buf, recv_buf_len, &actual_len, 1000);
222
223 if (ret)
224 dprintk(1, "usb_bulk_msg (read) failed, err %i\n", ret);
225
226 return ret ? ret : actual_len;
227 }
228
229 static void cinergyt2_control_stream_transfer (struct cinergyt2 *cinergyt2, int enable)
230 {
231 char buf [] = { CINERGYT2_EP1_CONTROL_STREAM_TRANSFER, enable ? 1 : 0 };
232 cinergyt2_command(cinergyt2, buf, sizeof(buf), NULL, 0);
233 }
234
235 static void cinergyt2_sleep (struct cinergyt2 *cinergyt2, int sleep)
236 {
237 char buf [] = { CINERGYT2_EP1_SLEEP_MODE, sleep ? 1 : 0 };
238 cinergyt2_command(cinergyt2, buf, sizeof(buf), NULL, 0);
239 cinergyt2->sleeping = sleep;
240 }
241
242 static void cinergyt2_stream_irq (struct urb *urb, struct pt_regs *regs);
243
244 static int cinergyt2_submit_stream_urb (struct cinergyt2 *cinergyt2, struct urb *urb)
245 {
246 int err;
247
248 usb_fill_bulk_urb(urb,
249 cinergyt2->udev,
250 usb_rcvbulkpipe(cinergyt2->udev, 0x2),
251 urb->transfer_buffer,
252 STREAM_BUF_SIZE,
253 cinergyt2_stream_irq,
254 cinergyt2);
255
256 if ((err = usb_submit_urb(urb, GFP_ATOMIC)))
257 dprintk(1, "urb submission failed (err = %i)!\n", err);
258
259 return err;
260 }
261
262 static void cinergyt2_stream_irq (struct urb *urb, struct pt_regs *regs)
263 {
264 struct cinergyt2 *cinergyt2 = urb->context;
265
266 if (urb->actual_length > 0)
267 dvb_dmx_swfilter(&cinergyt2->demux,
268 urb->transfer_buffer, urb->actual_length);
269
270 if (cinergyt2->streaming)
271 cinergyt2_submit_stream_urb(cinergyt2, urb);
272 }
273
274 static void cinergyt2_free_stream_urbs (struct cinergyt2 *cinergyt2)
275 {
276 int i;
277
278 for (i=0; i<STREAM_URB_COUNT; i++)
279 if (cinergyt2->stream_urb[i])
280 usb_free_urb(cinergyt2->stream_urb[i]);
281
282 usb_buffer_free(cinergyt2->udev, STREAM_URB_COUNT*STREAM_BUF_SIZE,
283 cinergyt2->streambuf, cinergyt2->streambuf_dmahandle);
284 }
285
286 static int cinergyt2_alloc_stream_urbs (struct cinergyt2 *cinergyt2)
287 {
288 int i;
289
290 cinergyt2->streambuf = usb_buffer_alloc(cinergyt2->udev, STREAM_URB_COUNT*STREAM_BUF_SIZE,
291 SLAB_KERNEL, &cinergyt2->streambuf_dmahandle);
292 if (!cinergyt2->streambuf) {
293 dprintk(1, "failed to alloc consistent stream memory area, bailing out!\n");
294 return -ENOMEM;
295 }
296
297 memset(cinergyt2->streambuf, 0, STREAM_URB_COUNT*STREAM_BUF_SIZE);
298
299 for (i=0; i<STREAM_URB_COUNT; i++) {
300 struct urb *urb;
301
302 if (!(urb = usb_alloc_urb(0, GFP_ATOMIC))) {
303 dprintk(1, "failed to alloc consistent stream urbs, bailing out!\n");
304 cinergyt2_free_stream_urbs(cinergyt2);
305 return -ENOMEM;
306 }
307
308 urb->transfer_buffer = cinergyt2->streambuf + i * STREAM_BUF_SIZE;
309 urb->transfer_buffer_length = STREAM_BUF_SIZE;
310
311 cinergyt2->stream_urb[i] = urb;
312 }
313
314 return 0;
315 }
316
317 static void cinergyt2_stop_stream_xfer (struct cinergyt2 *cinergyt2)
318 {
319 int i;
320
321 cinergyt2_control_stream_transfer(cinergyt2, 0);
322
323 for (i=0; i<STREAM_URB_COUNT; i++)
324 if (cinergyt2->stream_urb[i])
325 usb_kill_urb(cinergyt2->stream_urb[i]);
326 }
327
328 static int cinergyt2_start_stream_xfer (struct cinergyt2 *cinergyt2)
329 {
330 int i, err;
331
332 for (i=0; i<STREAM_URB_COUNT; i++) {
333 if ((err = cinergyt2_submit_stream_urb(cinergyt2, cinergyt2->stream_urb[i]))) {
334 cinergyt2_stop_stream_xfer(cinergyt2);
335 dprintk(1, "failed urb submission (%i: err = %i)!\n", i, err);
336 return err;
337 }
338 }
339
340 cinergyt2_control_stream_transfer(cinergyt2, 1);
341 return 0;
342 }
343
344 static int cinergyt2_start_feed(struct dvb_demux_feed *dvbdmxfeed)
345 {
346 struct dvb_demux *demux = dvbdmxfeed->demux;
347 struct cinergyt2 *cinergyt2 = demux->priv;
348
349 if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
350 return -ERESTARTSYS;
351
352 if (cinergyt2->streaming == 0)
353 cinergyt2_start_stream_xfer(cinergyt2);
354
355 cinergyt2->streaming++;
356 mutex_unlock(&cinergyt2->sem);
357 return 0;
358 }
359
360 static int cinergyt2_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
361 {
362 struct dvb_demux *demux = dvbdmxfeed->demux;
363 struct cinergyt2 *cinergyt2 = demux->priv;
364
365 if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
366 return -ERESTARTSYS;
367
368 if (--cinergyt2->streaming == 0)
369 cinergyt2_stop_stream_xfer(cinergyt2);
370
371 mutex_unlock(&cinergyt2->sem);
372 return 0;
373 }
374
375 /**
376 * convert linux-dvb frontend parameter set into TPS.
377 * See ETSI ETS-300744, section 4.6.2, table 9 for details.
378 *
379 * This function is probably reusable and may better get placed in a support
380 * library.
381 *
382 * We replace errornous fields by default TPS fields (the ones with value 0).
383 */
384 static uint16_t compute_tps (struct dvb_frontend_parameters *p)
385 {
386 struct dvb_ofdm_parameters *op = &p->u.ofdm;
387 uint16_t tps = 0;
388
389 switch (op->code_rate_HP) {
390 case FEC_2_3:
391 tps |= (1 << 7);
392 break;
393 case FEC_3_4:
394 tps |= (2 << 7);
395 break;
396 case FEC_5_6:
397 tps |= (3 << 7);
398 break;
399 case FEC_7_8:
400 tps |= (4 << 7);
401 break;
402 case FEC_1_2:
403 case FEC_AUTO:
404 default:
405 /* tps |= (0 << 7) */;
406 }
407
408 switch (op->code_rate_LP) {
409 case FEC_2_3:
410 tps |= (1 << 4);
411 break;
412 case FEC_3_4:
413 tps |= (2 << 4);
414 break;
415 case FEC_5_6:
416 tps |= (3 << 4);
417 break;
418 case FEC_7_8:
419 tps |= (4 << 4);
420 break;
421 case FEC_1_2:
422 case FEC_AUTO:
423 default:
424 /* tps |= (0 << 4) */;
425 }
426
427 switch (op->constellation) {
428 case QAM_16:
429 tps |= (1 << 13);
430 break;
431 case QAM_64:
432 tps |= (2 << 13);
433 break;
434 case QPSK:
435 default:
436 /* tps |= (0 << 13) */;
437 }
438
439 switch (op->transmission_mode) {
440 case TRANSMISSION_MODE_8K:
441 tps |= (1 << 0);
442 break;
443 case TRANSMISSION_MODE_2K:
444 default:
445 /* tps |= (0 << 0) */;
446 }
447
448 switch (op->guard_interval) {
449 case GUARD_INTERVAL_1_16:
450 tps |= (1 << 2);
451 break;
452 case GUARD_INTERVAL_1_8:
453 tps |= (2 << 2);
454 break;
455 case GUARD_INTERVAL_1_4:
456 tps |= (3 << 2);
457 break;
458 case GUARD_INTERVAL_1_32:
459 default:
460 /* tps |= (0 << 2) */;
461 }
462
463 switch (op->hierarchy_information) {
464 case HIERARCHY_1:
465 tps |= (1 << 10);
466 break;
467 case HIERARCHY_2:
468 tps |= (2 << 10);
469 break;
470 case HIERARCHY_4:
471 tps |= (3 << 10);
472 break;
473 case HIERARCHY_NONE:
474 default:
475 /* tps |= (0 << 10) */;
476 }
477
478 return tps;
479 }
480
481 static int cinergyt2_open (struct inode *inode, struct file *file)
482 {
483 struct dvb_device *dvbdev = file->private_data;
484 struct cinergyt2 *cinergyt2 = dvbdev->priv;
485 int err = -ERESTARTSYS;
486
487 if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
488 return -ERESTARTSYS;
489
490 if ((err = dvb_generic_open(inode, file))) {
491 mutex_unlock(&cinergyt2->sem);
492 return err;
493 }
494
495
496 if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
497 cinergyt2_sleep(cinergyt2, 0);
498 schedule_delayed_work(&cinergyt2->query_work, HZ/2);
499 }
500
501 atomic_inc(&cinergyt2->inuse);
502
503 mutex_unlock(&cinergyt2->sem);
504 return 0;
505 }
506
507 static void cinergyt2_unregister(struct cinergyt2 *cinergyt2)
508 {
509 dvb_net_release(&cinergyt2->dvbnet);
510 dvb_dmxdev_release(&cinergyt2->dmxdev);
511 dvb_dmx_release(&cinergyt2->demux);
512 dvb_unregister_device(cinergyt2->fedev);
513 dvb_unregister_adapter(&cinergyt2->adapter);
514
515 cinergyt2_free_stream_urbs(cinergyt2);
516 kfree(cinergyt2);
517 }
518
519 static int cinergyt2_release (struct inode *inode, struct file *file)
520 {
521 struct dvb_device *dvbdev = file->private_data;
522 struct cinergyt2 *cinergyt2 = dvbdev->priv;
523
524 if (mutex_lock_interruptible(&cinergyt2->sem))
525 return -ERESTARTSYS;
526
527 if (!cinergyt2->disconnect_pending && (file->f_flags & O_ACCMODE) != O_RDONLY) {
528 cancel_delayed_work(&cinergyt2->query_work);
529 flush_scheduled_work();
530 cinergyt2_sleep(cinergyt2, 1);
531 }
532
533 mutex_unlock(&cinergyt2->sem);
534
535 if (atomic_dec_and_test(&cinergyt2->inuse) && cinergyt2->disconnect_pending) {
536 warn("delayed unregister in release");
537 cinergyt2_unregister(cinergyt2);
538 }
539
540 return dvb_generic_release(inode, file);
541 }
542
543 static unsigned int cinergyt2_poll (struct file *file, struct poll_table_struct *wait)
544 {
545 struct dvb_device *dvbdev = file->private_data;
546 struct cinergyt2 *cinergyt2 = dvbdev->priv;
547 unsigned int mask = 0;
548
549 if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
550 return -ERESTARTSYS;
551
552 poll_wait(file, &cinergyt2->poll_wq, wait);
553
554 if (cinergyt2->pending_fe_events != 0)
555 mask |= (POLLIN | POLLRDNORM | POLLPRI);
556
557 mutex_unlock(&cinergyt2->sem);
558
559 return mask;
560 }
561
562
563 static int cinergyt2_ioctl (struct inode *inode, struct file *file,
564 unsigned cmd, unsigned long arg)
565 {
566 struct dvb_device *dvbdev = file->private_data;
567 struct cinergyt2 *cinergyt2 = dvbdev->priv;
568 struct dvbt_get_status_msg *stat = &cinergyt2->status;
569 fe_status_t status = 0;
570
571 switch (cmd) {
572 case FE_GET_INFO:
573 return copy_to_user((void __user*) arg, &cinergyt2_fe_info,
574 sizeof(struct dvb_frontend_info));
575
576 case FE_READ_STATUS:
577 if (0xffff - le16_to_cpu(stat->gain) > 30)
578 status |= FE_HAS_SIGNAL;
579 if (stat->lock_bits & (1 << 6))
580 status |= FE_HAS_LOCK;
581 if (stat->lock_bits & (1 << 5))
582 status |= FE_HAS_SYNC;
583 if (stat->lock_bits & (1 << 4))
584 status |= FE_HAS_CARRIER;
585 if (stat->lock_bits & (1 << 1))
586 status |= FE_HAS_VITERBI;
587
588 return copy_to_user((void __user*) arg, &status, sizeof(status));
589
590 case FE_READ_BER:
591 return put_user(le32_to_cpu(stat->viterbi_error_rate),
592 (__u32 __user *) arg);
593
594 case FE_READ_SIGNAL_STRENGTH:
595 return put_user(0xffff - le16_to_cpu(stat->gain),
596 (__u16 __user *) arg);
597
598 case FE_READ_SNR:
599 return put_user((stat->snr << 8) | stat->snr,
600 (__u16 __user *) arg);
601
602 case FE_READ_UNCORRECTED_BLOCKS:
603 {
604 uint32_t unc_count;
605
606 unc_count = stat->uncorrected_block_count;
607 stat->uncorrected_block_count = 0;
608
609 /* UNC are already converted to host byte order... */
610 return put_user(unc_count,(__u32 __user *) arg);
611 }
612 case FE_SET_FRONTEND:
613 {
614 struct dvbt_set_parameters_msg *param = &cinergyt2->param;
615 struct dvb_frontend_parameters p;
616 int err;
617
618 if ((file->f_flags & O_ACCMODE) == O_RDONLY)
619 return -EPERM;
620
621 if (copy_from_user(&p, (void __user*) arg, sizeof(p)))
622 return -EFAULT;
623
624 if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
625 return -ERESTARTSYS;
626
627 param->cmd = CINERGYT2_EP1_SET_TUNER_PARAMETERS;
628 param->tps = cpu_to_le16(compute_tps(&p));
629 param->freq = cpu_to_le32(p.frequency / 1000);
630 param->bandwidth = 8 - p.u.ofdm.bandwidth - BANDWIDTH_8_MHZ;
631
632 stat->lock_bits = 0;
633 cinergyt2->pending_fe_events++;
634 wake_up_interruptible(&cinergyt2->poll_wq);
635
636 err = cinergyt2_command(cinergyt2,
637 (char *) param, sizeof(*param),
638 NULL, 0);
639
640 mutex_unlock(&cinergyt2->sem);
641
642 return (err < 0) ? err : 0;
643 }
644
645 case FE_GET_FRONTEND:
646 /**
647 * trivial to implement (see struct dvbt_get_status_msg).
648 * equivalent to FE_READ ioctls, but needs
649 * TPS -> linux-dvb parameter set conversion. Feel free
650 * to implement this and send us a patch if you need this
651 * functionality.
652 */
653 break;
654
655 case FE_GET_EVENT:
656 {
657 /**
658 * for now we only fill the status field. the parameters
659 * are trivial to fill as soon FE_GET_FRONTEND is done.
660 */
661 struct dvb_frontend_event __user *e = (void __user *) arg;
662 if (cinergyt2->pending_fe_events == 0) {
663 if (file->f_flags & O_NONBLOCK)
664 return -EWOULDBLOCK;
665 wait_event_interruptible(cinergyt2->poll_wq,
666 cinergyt2->pending_fe_events > 0);
667 }
668 cinergyt2->pending_fe_events = 0;
669 return cinergyt2_ioctl(inode, file, FE_READ_STATUS,
670 (unsigned long) &e->status);
671 }
672
673 default:
674 ;
675 }
676
677 return -EINVAL;
678 }
679
680 static int cinergyt2_mmap(struct file *file, struct vm_area_struct *vma)
681 {
682 struct dvb_device *dvbdev = file->private_data;
683 struct cinergyt2 *cinergyt2 = dvbdev->priv;
684 int ret = 0;
685
686 lock_kernel();
687
688 if (vma->vm_flags & (VM_WRITE | VM_EXEC)) {
689 ret = -EPERM;
690 goto bailout;
691 }
692
693 if (vma->vm_end > vma->vm_start + STREAM_URB_COUNT * STREAM_BUF_SIZE) {
694 ret = -EINVAL;
695 goto bailout;
696 }
697
698 vma->vm_flags |= (VM_IO | VM_DONTCOPY);
699 vma->vm_file = file;
700
701 ret = remap_pfn_range(vma, vma->vm_start,
702 virt_to_phys(cinergyt2->streambuf) >> PAGE_SHIFT,
703 vma->vm_end - vma->vm_start,
704 vma->vm_page_prot) ? -EAGAIN : 0;
705 bailout:
706 unlock_kernel();
707 return ret;
708 }
709
710 static struct file_operations cinergyt2_fops = {
711 .owner = THIS_MODULE,
712 .ioctl = cinergyt2_ioctl,
713 .poll = cinergyt2_poll,
714 .open = cinergyt2_open,
715 .release = cinergyt2_release,
716 .mmap = cinergyt2_mmap
717 };
718
719 static struct dvb_device cinergyt2_fe_template = {
720 .users = ~0,
721 .writers = 1,
722 .readers = (~0)-1,
723 .fops = &cinergyt2_fops
724 };
725
726 #ifdef ENABLE_RC
727
728 static void cinergyt2_query_rc (void *data)
729 {
730 struct cinergyt2 *cinergyt2 = data;
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_WORK(&cinergyt2->rc_query_work, cinergyt2_query_rc, cinergyt2);
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 (void *data)
853 {
854 struct cinergyt2 *cinergyt2 = (struct cinergyt2 *) data;
855 char cmd [] = { CINERGYT2_EP1_GET_TUNER_STATUS };
856 struct dvbt_get_status_msg *s = &cinergyt2->status;
857 uint8_t lock_bits;
858 uint32_t unc;
859
860 if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
861 return;
862
863 unc = s->uncorrected_block_count;
864 lock_bits = s->lock_bits;
865
866 cinergyt2_command(cinergyt2, cmd, sizeof(cmd), (char *) s, sizeof(*s));
867
868 unc += le32_to_cpu(s->uncorrected_block_count);
869 s->uncorrected_block_count = unc;
870
871 if (lock_bits != s->lock_bits) {
872 wake_up_interruptible(&cinergyt2->poll_wq);
873 cinergyt2->pending_fe_events++;
874 }
875
876 schedule_delayed_work(&cinergyt2->query_work,
877 msecs_to_jiffies(QUERY_INTERVAL));
878
879 mutex_unlock(&cinergyt2->sem);
880 }
881
882 static int cinergyt2_probe (struct usb_interface *intf,
883 const struct usb_device_id *id)
884 {
885 struct cinergyt2 *cinergyt2;
886 int err;
887
888 if (!(cinergyt2 = kmalloc (sizeof(struct cinergyt2), GFP_KERNEL))) {
889 dprintk(1, "out of memory?!?\n");
890 return -ENOMEM;
891 }
892
893 memset (cinergyt2, 0, sizeof (struct cinergyt2));
894 usb_set_intfdata (intf, (void *) cinergyt2);
895
896 mutex_init(&cinergyt2->sem);
897 init_waitqueue_head (&cinergyt2->poll_wq);
898 INIT_WORK(&cinergyt2->query_work, cinergyt2_query, cinergyt2);
899
900 cinergyt2->udev = interface_to_usbdev(intf);
901 cinergyt2->param.cmd = CINERGYT2_EP1_SET_TUNER_PARAMETERS;
902
903 if (cinergyt2_alloc_stream_urbs (cinergyt2) < 0) {
904 dprintk(1, "unable to allocate stream urbs\n");
905 kfree(cinergyt2);
906 return -ENOMEM;
907 }
908
909 if ((err = dvb_register_adapter(&cinergyt2->adapter, DRIVER_NAME, THIS_MODULE, &cinergyt2->udev->dev)) < 0) {
910 kfree(cinergyt2);
911 return err;
912 }
913
914 cinergyt2->demux.priv = cinergyt2;
915 cinergyt2->demux.filternum = 256;
916 cinergyt2->demux.feednum = 256;
917 cinergyt2->demux.start_feed = cinergyt2_start_feed;
918 cinergyt2->demux.stop_feed = cinergyt2_stop_feed;
919 cinergyt2->demux.dmx.capabilities = DMX_TS_FILTERING |
920 DMX_SECTION_FILTERING |
921 DMX_MEMORY_BASED_FILTERING;
922
923 if ((err = dvb_dmx_init(&cinergyt2->demux)) < 0) {
924 dprintk(1, "dvb_dmx_init() failed (err = %d)\n", err);
925 goto bailout;
926 }
927
928 cinergyt2->dmxdev.filternum = cinergyt2->demux.filternum;
929 cinergyt2->dmxdev.demux = &cinergyt2->demux.dmx;
930 cinergyt2->dmxdev.capabilities = 0;
931
932 if ((err = dvb_dmxdev_init(&cinergyt2->dmxdev, &cinergyt2->adapter)) < 0) {
933 dprintk(1, "dvb_dmxdev_init() failed (err = %d)\n", err);
934 goto bailout;
935 }
936
937 if (dvb_net_init(&cinergyt2->adapter, &cinergyt2->dvbnet, &cinergyt2->demux.dmx))
938 dprintk(1, "dvb_net_init() failed!\n");
939
940 dvb_register_device(&cinergyt2->adapter, &cinergyt2->fedev,
941 &cinergyt2_fe_template, cinergyt2,
942 DVB_DEVICE_FRONTEND);
943
944 err = cinergyt2_register_rc(cinergyt2);
945 if (err)
946 goto bailout;
947
948 return 0;
949
950 bailout:
951 dvb_net_release(&cinergyt2->dvbnet);
952 dvb_dmxdev_release(&cinergyt2->dmxdev);
953 dvb_dmx_release(&cinergyt2->demux);
954 dvb_unregister_adapter(&cinergyt2->adapter);
955 cinergyt2_free_stream_urbs(cinergyt2);
956 kfree(cinergyt2);
957 return -ENOMEM;
958 }
959
960 static void cinergyt2_disconnect (struct usb_interface *intf)
961 {
962 struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
963
964 flush_scheduled_work();
965
966 cinergyt2_unregister_rc(cinergyt2);
967
968 cancel_delayed_work(&cinergyt2->query_work);
969 wake_up_interruptible(&cinergyt2->poll_wq);
970
971 cinergyt2->demux.dmx.close(&cinergyt2->demux.dmx);
972 cinergyt2->disconnect_pending = 1;
973
974 if (!atomic_read(&cinergyt2->inuse))
975 cinergyt2_unregister(cinergyt2);
976 }
977
978 static int cinergyt2_suspend (struct usb_interface *intf, pm_message_t state)
979 {
980 struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
981
982 if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
983 return -ERESTARTSYS;
984
985 if (state.event > PM_EVENT_ON) {
986 struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
987
988 cinergyt2_suspend_rc(cinergyt2);
989 cancel_delayed_work(&cinergyt2->query_work);
990 if (cinergyt2->streaming)
991 cinergyt2_stop_stream_xfer(cinergyt2);
992 flush_scheduled_work();
993 cinergyt2_sleep(cinergyt2, 1);
994 }
995
996 mutex_unlock(&cinergyt2->sem);
997 return 0;
998 }
999
1000 static int cinergyt2_resume (struct usb_interface *intf)
1001 {
1002 struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
1003 struct dvbt_set_parameters_msg *param = &cinergyt2->param;
1004
1005 if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
1006 return -ERESTARTSYS;
1007
1008 if (!cinergyt2->sleeping) {
1009 cinergyt2_sleep(cinergyt2, 0);
1010 cinergyt2_command(cinergyt2, (char *) param, sizeof(*param), NULL, 0);
1011 if (cinergyt2->streaming)
1012 cinergyt2_start_stream_xfer(cinergyt2);
1013 schedule_delayed_work(&cinergyt2->query_work, HZ/2);
1014 }
1015
1016 cinergyt2_resume_rc(cinergyt2);
1017
1018 mutex_unlock(&cinergyt2->sem);
1019 return 0;
1020 }
1021
1022 static const struct usb_device_id cinergyt2_table [] __devinitdata = {
1023 { USB_DEVICE(0x0ccd, 0x0038) },
1024 { 0 }
1025 };
1026
1027 MODULE_DEVICE_TABLE(usb, cinergyt2_table);
1028
1029 static struct usb_driver cinergyt2_driver = {
1030 .name = "cinergyT2",
1031 .probe = cinergyt2_probe,
1032 .disconnect = cinergyt2_disconnect,
1033 .suspend = cinergyt2_suspend,
1034 .resume = cinergyt2_resume,
1035 .id_table = cinergyt2_table
1036 };
1037
1038 static int __init cinergyt2_init (void)
1039 {
1040 int err;
1041
1042 if ((err = usb_register(&cinergyt2_driver)) < 0)
1043 dprintk(1, "usb_register() failed! (err %i)\n", err);
1044
1045 return err;
1046 }
1047
1048 static void __exit cinergyt2_exit (void)
1049 {
1050 usb_deregister(&cinergyt2_driver);
1051 }
1052
1053 module_init (cinergyt2_init);
1054 module_exit (cinergyt2_exit);
1055
1056 MODULE_LICENSE("GPL");
1057 MODULE_AUTHOR("Holger Waechtler, Daniel Mack");
Linux kernel - Deliverables
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