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ia64/kvm: compilation fix. export account_system_vtime.
[pv_ops_mirror.git] / drivers / media / dvb / cinergyT2 / cinergyT2.c
blobf5010e8671b8476109b44df80e90a47079305302
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/input.h>
30 #include <linux/dvb/frontend.h>
31 #include <linux/mutex.h>
32 #include <linux/mm.h>
33 #include <asm/io.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 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
62
63 #define dprintk(level, args...) \
64 do { \
65 if ((debug & level)) { \
66 printk("%s: %s(): ", KBUILD_MODNAME, \
67 __func__); \
68 printk(args); } \
69 } while (0)
70
71 enum cinergyt2_ep1_cmd {
72 CINERGYT2_EP1_PID_TABLE_RESET = 0x01,
73 CINERGYT2_EP1_PID_SETUP = 0x02,
74 CINERGYT2_EP1_CONTROL_STREAM_TRANSFER = 0x03,
75 CINERGYT2_EP1_SET_TUNER_PARAMETERS = 0x04,
76 CINERGYT2_EP1_GET_TUNER_STATUS = 0x05,
77 CINERGYT2_EP1_START_SCAN = 0x06,
78 CINERGYT2_EP1_CONTINUE_SCAN = 0x07,
79 CINERGYT2_EP1_GET_RC_EVENTS = 0x08,
80 CINERGYT2_EP1_SLEEP_MODE = 0x09
81 };
82
83 struct dvbt_set_parameters_msg {
84 uint8_t cmd;
85 uint32_t freq;
86 uint8_t bandwidth;
87 uint16_t tps;
88 uint8_t flags;
89 } __attribute__((packed));
90
91 struct dvbt_get_status_msg {
92 uint32_t freq;
93 uint8_t bandwidth;
94 uint16_t tps;
95 uint8_t flags;
96 uint16_t gain;
97 uint8_t snr;
98 uint32_t viterbi_error_rate;
99 uint32_t rs_error_rate;
100 uint32_t uncorrected_block_count;
101 uint8_t lock_bits;
102 uint8_t prev_lock_bits;
103 } __attribute__((packed));
104
105 static struct dvb_frontend_info cinergyt2_fe_info = {
106 .name = DRIVER_NAME,
107 .type = FE_OFDM,
108 .frequency_min = 174000000,
109 .frequency_max = 862000000,
110 .frequency_stepsize = 166667,
111 .caps = FE_CAN_INVERSION_AUTO | FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 |
112 FE_CAN_FEC_3_4 | FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 |
113 FE_CAN_FEC_AUTO |
114 FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
115 FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO |
116 FE_CAN_HIERARCHY_AUTO | FE_CAN_RECOVER | FE_CAN_MUTE_TS
117 };
118
119 struct cinergyt2 {
120 struct dvb_demux demux;
121 struct usb_device *udev;
122 struct mutex sem;
123 struct mutex wq_sem;
124 struct dvb_adapter adapter;
125 struct dvb_device *fedev;
126 struct dmxdev dmxdev;
127 struct dvb_net dvbnet;
128
129 int streaming;
130 int sleeping;
131
132 struct dvbt_set_parameters_msg param;
133 struct dvbt_get_status_msg status;
134 struct delayed_work query_work;
135
136 wait_queue_head_t poll_wq;
137 int pending_fe_events;
138 int disconnect_pending;
139 atomic_t inuse;
140
141 void *streambuf;
142 dma_addr_t streambuf_dmahandle;
143 struct urb *stream_urb [STREAM_URB_COUNT];
144
145 #ifdef ENABLE_RC
146 struct input_dev *rc_input_dev;
147 char phys[64];
148 struct delayed_work rc_query_work;
149 int rc_input_event;
150 u32 rc_last_code;
151 unsigned long last_event_jiffies;
152 #endif
153 };
154
155 enum {
156 CINERGYT2_RC_EVENT_TYPE_NONE = 0x00,
157 CINERGYT2_RC_EVENT_TYPE_NEC = 0x01,
158 CINERGYT2_RC_EVENT_TYPE_RC5 = 0x02
159 };
160
161 struct cinergyt2_rc_event {
162 char type;
163 uint32_t value;
164 } __attribute__((packed));
165
166 static const uint32_t rc_keys[] = {
167 CINERGYT2_RC_EVENT_TYPE_NEC, 0xfe01eb04, KEY_POWER,
168 CINERGYT2_RC_EVENT_TYPE_NEC, 0xfd02eb04, KEY_1,
169 CINERGYT2_RC_EVENT_TYPE_NEC, 0xfc03eb04, KEY_2,
170 CINERGYT2_RC_EVENT_TYPE_NEC, 0xfb04eb04, KEY_3,
171 CINERGYT2_RC_EVENT_TYPE_NEC, 0xfa05eb04, KEY_4,
172 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf906eb04, KEY_5,
173 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf807eb04, KEY_6,
174 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf708eb04, KEY_7,
175 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf609eb04, KEY_8,
176 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf50aeb04, KEY_9,
177 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf30ceb04, KEY_0,
178 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf40beb04, KEY_VIDEO,
179 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf20deb04, KEY_REFRESH,
180 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf10eeb04, KEY_SELECT,
181 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf00feb04, KEY_EPG,
182 CINERGYT2_RC_EVENT_TYPE_NEC, 0xef10eb04, KEY_UP,
183 CINERGYT2_RC_EVENT_TYPE_NEC, 0xeb14eb04, KEY_DOWN,
184 CINERGYT2_RC_EVENT_TYPE_NEC, 0xee11eb04, KEY_LEFT,
185 CINERGYT2_RC_EVENT_TYPE_NEC, 0xec13eb04, KEY_RIGHT,
186 CINERGYT2_RC_EVENT_TYPE_NEC, 0xed12eb04, KEY_OK,
187 CINERGYT2_RC_EVENT_TYPE_NEC, 0xea15eb04, KEY_TEXT,
188 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe916eb04, KEY_INFO,
189 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe817eb04, KEY_RED,
190 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe718eb04, KEY_GREEN,
191 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe619eb04, KEY_YELLOW,
192 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe51aeb04, KEY_BLUE,
193 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe31ceb04, KEY_VOLUMEUP,
194 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe11eeb04, KEY_VOLUMEDOWN,
195 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe21deb04, KEY_MUTE,
196 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe41beb04, KEY_CHANNELUP,
197 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe01feb04, KEY_CHANNELDOWN,
198 CINERGYT2_RC_EVENT_TYPE_NEC, 0xbf40eb04, KEY_PAUSE,
199 CINERGYT2_RC_EVENT_TYPE_NEC, 0xb34ceb04, KEY_PLAY,
200 CINERGYT2_RC_EVENT_TYPE_NEC, 0xa758eb04, KEY_RECORD,
201 CINERGYT2_RC_EVENT_TYPE_NEC, 0xab54eb04, KEY_PREVIOUS,
202 CINERGYT2_RC_EVENT_TYPE_NEC, 0xb748eb04, KEY_STOP,
203 CINERGYT2_RC_EVENT_TYPE_NEC, 0xa35ceb04, KEY_NEXT
204 };
205
206 static int cinergyt2_command (struct cinergyt2 *cinergyt2,
207 char *send_buf, int send_buf_len,
208 char *recv_buf, int recv_buf_len)
209 {
210 int actual_len;
211 char dummy;
212 int ret;
213
214 ret = usb_bulk_msg(cinergyt2->udev, usb_sndbulkpipe(cinergyt2->udev, 1),
215 send_buf, send_buf_len, &actual_len, 1000);
216
217 if (ret)
218 dprintk(1, "usb_bulk_msg (send) failed, err %i\n", ret);
219
220 if (!recv_buf)
221 recv_buf = &dummy;
222
223 ret = usb_bulk_msg(cinergyt2->udev, usb_rcvbulkpipe(cinergyt2->udev, 1),
224 recv_buf, recv_buf_len, &actual_len, 1000);
225
226 if (ret)
227 dprintk(1, "usb_bulk_msg (read) failed, err %i\n", ret);
228
229 return ret ? ret : actual_len;
230 }
231
232 static void cinergyt2_control_stream_transfer (struct cinergyt2 *cinergyt2, int enable)
233 {
234 char buf [] = { CINERGYT2_EP1_CONTROL_STREAM_TRANSFER, enable ? 1 : 0 };
235 cinergyt2_command(cinergyt2, buf, sizeof(buf), NULL, 0);
236 }
237
238 static void cinergyt2_sleep (struct cinergyt2 *cinergyt2, int sleep)
239 {
240 char buf [] = { CINERGYT2_EP1_SLEEP_MODE, sleep ? 1 : 0 };
241 cinergyt2_command(cinergyt2, buf, sizeof(buf), NULL, 0);
242 cinergyt2->sleeping = sleep;
243 }
244
245 static void cinergyt2_stream_irq (struct urb *urb);
246
247 static int cinergyt2_submit_stream_urb (struct cinergyt2 *cinergyt2, struct urb *urb)
248 {
249 int err;
250
251 usb_fill_bulk_urb(urb,
252 cinergyt2->udev,
253 usb_rcvbulkpipe(cinergyt2->udev, 0x2),
254 urb->transfer_buffer,
255 STREAM_BUF_SIZE,
256 cinergyt2_stream_irq,
257 cinergyt2);
258
259 if ((err = usb_submit_urb(urb, GFP_ATOMIC)))
260 dprintk(1, "urb submission failed (err = %i)!\n", err);
261
262 return err;
263 }
264
265 static void cinergyt2_stream_irq (struct urb *urb)
266 {
267 struct cinergyt2 *cinergyt2 = urb->context;
268
269 if (urb->actual_length > 0)
270 dvb_dmx_swfilter(&cinergyt2->demux,
271 urb->transfer_buffer, urb->actual_length);
272
273 if (cinergyt2->streaming)
274 cinergyt2_submit_stream_urb(cinergyt2, urb);
275 }
276
277 static void cinergyt2_free_stream_urbs (struct cinergyt2 *cinergyt2)
278 {
279 int i;
280
281 for (i=0; i<STREAM_URB_COUNT; i++)
282 usb_free_urb(cinergyt2->stream_urb[i]);
283
284 usb_buffer_free(cinergyt2->udev, STREAM_URB_COUNT*STREAM_BUF_SIZE,
285 cinergyt2->streambuf, cinergyt2->streambuf_dmahandle);
286 }
287
288 static int cinergyt2_alloc_stream_urbs (struct cinergyt2 *cinergyt2)
289 {
290 int i;
291
292 cinergyt2->streambuf = usb_buffer_alloc(cinergyt2->udev, STREAM_URB_COUNT*STREAM_BUF_SIZE,
293 GFP_KERNEL, &cinergyt2->streambuf_dmahandle);
294 if (!cinergyt2->streambuf) {
295 dprintk(1, "failed to alloc consistent stream memory area, bailing out!\n");
296 return -ENOMEM;
297 }
298
299 memset(cinergyt2->streambuf, 0, STREAM_URB_COUNT*STREAM_BUF_SIZE);
300
301 for (i=0; i<STREAM_URB_COUNT; i++) {
302 struct urb *urb;
303
304 if (!(urb = usb_alloc_urb(0, GFP_ATOMIC))) {
305 dprintk(1, "failed to alloc consistent stream urbs, bailing out!\n");
306 cinergyt2_free_stream_urbs(cinergyt2);
307 return -ENOMEM;
308 }
309
310 urb->transfer_buffer = cinergyt2->streambuf + i * STREAM_BUF_SIZE;
311 urb->transfer_buffer_length = STREAM_BUF_SIZE;
312
313 cinergyt2->stream_urb[i] = urb;
314 }
315
316 return 0;
317 }
318
319 static void cinergyt2_stop_stream_xfer (struct cinergyt2 *cinergyt2)
320 {
321 int i;
322
323 cinergyt2_control_stream_transfer(cinergyt2, 0);
324
325 for (i=0; i<STREAM_URB_COUNT; i++)
326 usb_kill_urb(cinergyt2->stream_urb[i]);
327 }
328
329 static int cinergyt2_start_stream_xfer (struct cinergyt2 *cinergyt2)
330 {
331 int i, err;
332
333 for (i=0; i<STREAM_URB_COUNT; i++) {
334 if ((err = cinergyt2_submit_stream_urb(cinergyt2, cinergyt2->stream_urb[i]))) {
335 cinergyt2_stop_stream_xfer(cinergyt2);
336 dprintk(1, "failed urb submission (%i: err = %i)!\n", i, err);
337 return err;
338 }
339 }
340
341 cinergyt2_control_stream_transfer(cinergyt2, 1);
342 return 0;
343 }
344
345 static int cinergyt2_start_feed(struct dvb_demux_feed *dvbdmxfeed)
346 {
347 struct dvb_demux *demux = dvbdmxfeed->demux;
348 struct cinergyt2 *cinergyt2 = demux->priv;
349
350 if (cinergyt2->disconnect_pending)
351 return -EAGAIN;
352 if (mutex_lock_interruptible(&cinergyt2->sem))
353 return -ERESTARTSYS;
354
355 if (cinergyt2->streaming == 0)
356 cinergyt2_start_stream_xfer(cinergyt2);
357
358 cinergyt2->streaming++;
359 mutex_unlock(&cinergyt2->sem);
360 return 0;
361 }
362
363 static int cinergyt2_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
364 {
365 struct dvb_demux *demux = dvbdmxfeed->demux;
366 struct cinergyt2 *cinergyt2 = demux->priv;
367
368 if (cinergyt2->disconnect_pending)
369 return -EAGAIN;
370 if (mutex_lock_interruptible(&cinergyt2->sem))
371 return -ERESTARTSYS;
372
373 if (--cinergyt2->streaming == 0)
374 cinergyt2_stop_stream_xfer(cinergyt2);
375
376 mutex_unlock(&cinergyt2->sem);
377 return 0;
378 }
379
380 /**
381 * convert linux-dvb frontend parameter set into TPS.
382 * See ETSI ETS-300744, section 4.6.2, table 9 for details.
383 *
384 * This function is probably reusable and may better get placed in a support
385 * library.
386 *
387 * We replace errornous fields by default TPS fields (the ones with value 0).
388 */
389 static uint16_t compute_tps (struct dvb_frontend_parameters *p)
390 {
391 struct dvb_ofdm_parameters *op = &p->u.ofdm;
392 uint16_t tps = 0;
393
394 switch (op->code_rate_HP) {
395 case FEC_2_3:
396 tps |= (1 << 7);
397 break;
398 case FEC_3_4:
399 tps |= (2 << 7);
400 break;
401 case FEC_5_6:
402 tps |= (3 << 7);
403 break;
404 case FEC_7_8:
405 tps |= (4 << 7);
406 break;
407 case FEC_1_2:
408 case FEC_AUTO:
409 default:
410 /* tps |= (0 << 7) */;
411 }
412
413 switch (op->code_rate_LP) {
414 case FEC_2_3:
415 tps |= (1 << 4);
416 break;
417 case FEC_3_4:
418 tps |= (2 << 4);
419 break;
420 case FEC_5_6:
421 tps |= (3 << 4);
422 break;
423 case FEC_7_8:
424 tps |= (4 << 4);
425 break;
426 case FEC_1_2:
427 case FEC_AUTO:
428 default:
429 /* tps |= (0 << 4) */;
430 }
431
432 switch (op->constellation) {
433 case QAM_16:
434 tps |= (1 << 13);
435 break;
436 case QAM_64:
437 tps |= (2 << 13);
438 break;
439 case QPSK:
440 default:
441 /* tps |= (0 << 13) */;
442 }
443
444 switch (op->transmission_mode) {
445 case TRANSMISSION_MODE_8K:
446 tps |= (1 << 0);
447 break;
448 case TRANSMISSION_MODE_2K:
449 default:
450 /* tps |= (0 << 0) */;
451 }
452
453 switch (op->guard_interval) {
454 case GUARD_INTERVAL_1_16:
455 tps |= (1 << 2);
456 break;
457 case GUARD_INTERVAL_1_8:
458 tps |= (2 << 2);
459 break;
460 case GUARD_INTERVAL_1_4:
461 tps |= (3 << 2);
462 break;
463 case GUARD_INTERVAL_1_32:
464 default:
465 /* tps |= (0 << 2) */;
466 }
467
468 switch (op->hierarchy_information) {
469 case HIERARCHY_1:
470 tps |= (1 << 10);
471 break;
472 case HIERARCHY_2:
473 tps |= (2 << 10);
474 break;
475 case HIERARCHY_4:
476 tps |= (3 << 10);
477 break;
478 case HIERARCHY_NONE:
479 default:
480 /* tps |= (0 << 10) */;
481 }
482
483 return tps;
484 }
485
486 static int cinergyt2_open (struct inode *inode, struct file *file)
487 {
488 struct dvb_device *dvbdev = file->private_data;
489 struct cinergyt2 *cinergyt2 = dvbdev->priv;
490 int err = -EAGAIN;
491
492 if (cinergyt2->disconnect_pending)
493 goto out;
494 err = mutex_lock_interruptible(&cinergyt2->wq_sem);
495 if (err)
496 goto out;
497
498 err = mutex_lock_interruptible(&cinergyt2->sem);
499 if (err)
500 goto out_unlock1;
501
502 if ((err = dvb_generic_open(inode, file)))
503 goto out_unlock2;
504
505 if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
506 cinergyt2_sleep(cinergyt2, 0);
507 schedule_delayed_work(&cinergyt2->query_work, HZ/2);
508 }
509
510 atomic_inc(&cinergyt2->inuse);
511
512 out_unlock2:
513 mutex_unlock(&cinergyt2->sem);
514 out_unlock1:
515 mutex_unlock(&cinergyt2->wq_sem);
516 out:
517 return err;
518 }
519
520 static void cinergyt2_unregister(struct cinergyt2 *cinergyt2)
521 {
522 dvb_net_release(&cinergyt2->dvbnet);
523 dvb_dmxdev_release(&cinergyt2->dmxdev);
524 dvb_dmx_release(&cinergyt2->demux);
525 dvb_unregister_device(cinergyt2->fedev);
526 dvb_unregister_adapter(&cinergyt2->adapter);
527
528 cinergyt2_free_stream_urbs(cinergyt2);
529 kfree(cinergyt2);
530 }
531
532 static int cinergyt2_release (struct inode *inode, struct file *file)
533 {
534 struct dvb_device *dvbdev = file->private_data;
535 struct cinergyt2 *cinergyt2 = dvbdev->priv;
536
537 mutex_lock(&cinergyt2->wq_sem);
538
539 if (!cinergyt2->disconnect_pending && (file->f_flags & O_ACCMODE) != O_RDONLY) {
540 cancel_rearming_delayed_work(&cinergyt2->query_work);
541
542 mutex_lock(&cinergyt2->sem);
543 cinergyt2_sleep(cinergyt2, 1);
544 mutex_unlock(&cinergyt2->sem);
545 }
546
547 mutex_unlock(&cinergyt2->wq_sem);
548
549 if (atomic_dec_and_test(&cinergyt2->inuse) && cinergyt2->disconnect_pending) {
550 warn("delayed unregister in release");
551 cinergyt2_unregister(cinergyt2);
552 }
553
554 return dvb_generic_release(inode, file);
555 }
556
557 static unsigned int cinergyt2_poll (struct file *file, struct poll_table_struct *wait)
558 {
559 struct dvb_device *dvbdev = file->private_data;
560 struct cinergyt2 *cinergyt2 = dvbdev->priv;
561 unsigned int mask = 0;
562
563 if (cinergyt2->disconnect_pending)
564 return -EAGAIN;
565 if (mutex_lock_interruptible(&cinergyt2->sem))
566 return -ERESTARTSYS;
567
568 poll_wait(file, &cinergyt2->poll_wq, wait);
569
570 if (cinergyt2->pending_fe_events != 0)
571 mask |= (POLLIN | POLLRDNORM | POLLPRI);
572
573 mutex_unlock(&cinergyt2->sem);
574
575 return mask;
576 }
577
578
579 static int cinergyt2_ioctl (struct inode *inode, struct file *file,
580 unsigned cmd, unsigned long arg)
581 {
582 struct dvb_device *dvbdev = file->private_data;
583 struct cinergyt2 *cinergyt2 = dvbdev->priv;
584 struct dvbt_get_status_msg *stat = &cinergyt2->status;
585 fe_status_t status = 0;
586
587 switch (cmd) {
588 case FE_GET_INFO:
589 return copy_to_user((void __user*) arg, &cinergyt2_fe_info,
590 sizeof(struct dvb_frontend_info));
591
592 case FE_READ_STATUS:
593 if (0xffff - le16_to_cpu(stat->gain) > 30)
594 status |= FE_HAS_SIGNAL;
595 if (stat->lock_bits & (1 << 6))
596 status |= FE_HAS_LOCK;
597 if (stat->lock_bits & (1 << 5))
598 status |= FE_HAS_SYNC;
599 if (stat->lock_bits & (1 << 4))
600 status |= FE_HAS_CARRIER;
601 if (stat->lock_bits & (1 << 1))
602 status |= FE_HAS_VITERBI;
603
604 return copy_to_user((void __user*) arg, &status, sizeof(status));
605
606 case FE_READ_BER:
607 return put_user(le32_to_cpu(stat->viterbi_error_rate),
608 (__u32 __user *) arg);
609
610 case FE_READ_SIGNAL_STRENGTH:
611 return put_user(0xffff - le16_to_cpu(stat->gain),
612 (__u16 __user *) arg);
613
614 case FE_READ_SNR:
615 return put_user((stat->snr << 8) | stat->snr,
616 (__u16 __user *) arg);
617
618 case FE_READ_UNCORRECTED_BLOCKS:
619 {
620 uint32_t unc_count;
621
622 unc_count = stat->uncorrected_block_count;
623 stat->uncorrected_block_count = 0;
624
625 /* UNC are already converted to host byte order... */
626 return put_user(unc_count,(__u32 __user *) arg);
627 }
628 case FE_SET_FRONTEND:
629 {
630 struct dvbt_set_parameters_msg *param = &cinergyt2->param;
631 struct dvb_frontend_parameters p;
632 int err;
633
634 if ((file->f_flags & O_ACCMODE) == O_RDONLY)
635 return -EPERM;
636
637 if (copy_from_user(&p, (void __user*) arg, sizeof(p)))
638 return -EFAULT;
639
640 if (cinergyt2->disconnect_pending)
641 return -EAGAIN;
642 if (mutex_lock_interruptible(&cinergyt2->sem))
643 return -ERESTARTSYS;
644
645 param->cmd = CINERGYT2_EP1_SET_TUNER_PARAMETERS;
646 param->tps = cpu_to_le16(compute_tps(&p));
647 param->freq = cpu_to_le32(p.frequency / 1000);
648 param->bandwidth = 8 - p.u.ofdm.bandwidth - BANDWIDTH_8_MHZ;
649
650 stat->lock_bits = 0;
651 cinergyt2->pending_fe_events++;
652 wake_up_interruptible(&cinergyt2->poll_wq);
653
654 err = cinergyt2_command(cinergyt2,
655 (char *) param, sizeof(*param),
656 NULL, 0);
657
658 mutex_unlock(&cinergyt2->sem);
659
660 return (err < 0) ? err : 0;
661 }
662
663 case FE_GET_FRONTEND:
664 /**
665 * trivial to implement (see struct dvbt_get_status_msg).
666 * equivalent to FE_READ ioctls, but needs
667 * TPS -> linux-dvb parameter set conversion. Feel free
668 * to implement this and send us a patch if you need this
669 * functionality.
670 */
671 break;
672
673 case FE_GET_EVENT:
674 {
675 /**
676 * for now we only fill the status field. the parameters
677 * are trivial to fill as soon FE_GET_FRONTEND is done.
678 */
679 struct dvb_frontend_event __user *e = (void __user *) arg;
680 if (cinergyt2->pending_fe_events == 0) {
681 if (file->f_flags & O_NONBLOCK)
682 return -EWOULDBLOCK;
683 wait_event_interruptible(cinergyt2->poll_wq,
684 cinergyt2->pending_fe_events > 0);
685 }
686 cinergyt2->pending_fe_events = 0;
687 return cinergyt2_ioctl(inode, file, FE_READ_STATUS,
688 (unsigned long) &e->status);
689 }
690
691 default:
692 ;
693 }
694
695 return -EINVAL;
696 }
697
698 static int cinergyt2_mmap(struct file *file, struct vm_area_struct *vma)
699 {
700 struct dvb_device *dvbdev = file->private_data;
701 struct cinergyt2 *cinergyt2 = dvbdev->priv;
702 int ret = 0;
703
704 lock_kernel();
705
706 if (vma->vm_flags & (VM_WRITE | VM_EXEC)) {
707 ret = -EPERM;
708 goto bailout;
709 }
710
711 if (vma->vm_end > vma->vm_start + STREAM_URB_COUNT * STREAM_BUF_SIZE) {
712 ret = -EINVAL;
713 goto bailout;
714 }
715
716 vma->vm_flags |= (VM_IO | VM_DONTCOPY);
717 vma->vm_file = file;
718
719 ret = remap_pfn_range(vma, vma->vm_start,
720 virt_to_phys(cinergyt2->streambuf) >> PAGE_SHIFT,
721 vma->vm_end - vma->vm_start,
722 vma->vm_page_prot) ? -EAGAIN : 0;
723 bailout:
724 unlock_kernel();
725 return ret;
726 }
727
728 static struct file_operations cinergyt2_fops = {
729 .owner = THIS_MODULE,
730 .ioctl = cinergyt2_ioctl,
731 .poll = cinergyt2_poll,
732 .open = cinergyt2_open,
733 .release = cinergyt2_release,
734 .mmap = cinergyt2_mmap
735 };
736
737 static struct dvb_device cinergyt2_fe_template = {
738 .users = ~0,
739 .writers = 1,
740 .readers = (~0)-1,
741 .fops = &cinergyt2_fops
742 };
743
744 #ifdef ENABLE_RC
745
746 static void cinergyt2_query_rc (struct work_struct *work)
747 {
748 struct cinergyt2 *cinergyt2 =
749 container_of(work, struct cinergyt2, rc_query_work.work);
750 char buf[1] = { CINERGYT2_EP1_GET_RC_EVENTS };
751 struct cinergyt2_rc_event rc_events[12];
752 int n, len, i;
753
754 if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
755 return;
756
757 len = cinergyt2_command(cinergyt2, buf, sizeof(buf),
758 (char *) rc_events, sizeof(rc_events));
759 if (len < 0)
760 goto out;
761 if (len == 0) {
762 if (time_after(jiffies, cinergyt2->last_event_jiffies +
763 msecs_to_jiffies(150))) {
764 /* stop key repeat */
765 if (cinergyt2->rc_input_event != KEY_MAX) {
766 dprintk(1, "rc_input_event=%d Up\n", cinergyt2->rc_input_event);
767 input_report_key(cinergyt2->rc_input_dev,
768 cinergyt2->rc_input_event, 0);
769 input_sync(cinergyt2->rc_input_dev);
770 cinergyt2->rc_input_event = KEY_MAX;
771 }
772 cinergyt2->rc_last_code = ~0;
773 }
774 goto out;
775 }
776 cinergyt2->last_event_jiffies = jiffies;
777
778 for (n = 0; n < (len / sizeof(rc_events[0])); n++) {
779 dprintk(1, "rc_events[%d].value = %x, type=%x\n",
780 n, le32_to_cpu(rc_events[n].value), rc_events[n].type);
781
782 if (rc_events[n].type == CINERGYT2_RC_EVENT_TYPE_NEC &&
783 rc_events[n].value == ~0) {
784 /* keyrepeat bit -> just repeat last rc_input_event */
785 } else {
786 cinergyt2->rc_input_event = KEY_MAX;
787 for (i = 0; i < ARRAY_SIZE(rc_keys); i += 3) {
788 if (rc_keys[i + 0] == rc_events[n].type &&
789 rc_keys[i + 1] == le32_to_cpu(rc_events[n].value)) {
790 cinergyt2->rc_input_event = rc_keys[i + 2];
791 break;
792 }
793 }
794 }
795
796 if (cinergyt2->rc_input_event != KEY_MAX) {
797 if (rc_events[n].value == cinergyt2->rc_last_code &&
798 cinergyt2->rc_last_code != ~0) {
799 /* emit a key-up so the double event is recognized */
800 dprintk(1, "rc_input_event=%d UP\n", cinergyt2->rc_input_event);
801 input_report_key(cinergyt2->rc_input_dev,
802 cinergyt2->rc_input_event, 0);
803 }
804 dprintk(1, "rc_input_event=%d\n", cinergyt2->rc_input_event);
805 input_report_key(cinergyt2->rc_input_dev,
806 cinergyt2->rc_input_event, 1);
807 input_sync(cinergyt2->rc_input_dev);
808 cinergyt2->rc_last_code = rc_events[n].value;
809 }
810 }
811
812 out:
813 schedule_delayed_work(&cinergyt2->rc_query_work,
814 msecs_to_jiffies(RC_QUERY_INTERVAL));
815
816 mutex_unlock(&cinergyt2->sem);
817 }
818
819 static int cinergyt2_register_rc(struct cinergyt2 *cinergyt2)
820 {
821 struct input_dev *input_dev;
822 int i;
823 int err;
824
825 input_dev = input_allocate_device();
826 if (!input_dev)
827 return -ENOMEM;
828
829 usb_make_path(cinergyt2->udev, cinergyt2->phys, sizeof(cinergyt2->phys));
830 strlcat(cinergyt2->phys, "/input0", sizeof(cinergyt2->phys));
831 cinergyt2->rc_input_event = KEY_MAX;
832 cinergyt2->rc_last_code = ~0;
833 INIT_DELAYED_WORK(&cinergyt2->rc_query_work, cinergyt2_query_rc);
834
835 input_dev->name = DRIVER_NAME " remote control";
836 input_dev->phys = cinergyt2->phys;
837 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
838 for (i = 0; i < ARRAY_SIZE(rc_keys); i += 3)
839 set_bit(rc_keys[i + 2], input_dev->keybit);
840 input_dev->keycodesize = 0;
841 input_dev->keycodemax = 0;
842 input_dev->id.bustype = BUS_USB;
843 input_dev->id.vendor = cinergyt2->udev->descriptor.idVendor;
844 input_dev->id.product = cinergyt2->udev->descriptor.idProduct;
845 input_dev->id.version = 1;
846 input_dev->dev.parent = &cinergyt2->udev->dev;
847
848 err = input_register_device(input_dev);
849 if (err) {
850 input_free_device(input_dev);
851 return err;
852 }
853
854 cinergyt2->rc_input_dev = input_dev;
855 schedule_delayed_work(&cinergyt2->rc_query_work, HZ/2);
856
857 return 0;
858 }
859
860 static void cinergyt2_unregister_rc(struct cinergyt2 *cinergyt2)
861 {
862 cancel_rearming_delayed_work(&cinergyt2->rc_query_work);
863 input_unregister_device(cinergyt2->rc_input_dev);
864 }
865
866 static inline void cinergyt2_suspend_rc(struct cinergyt2 *cinergyt2)
867 {
868 cancel_rearming_delayed_work(&cinergyt2->rc_query_work);
869 }
870
871 static inline void cinergyt2_resume_rc(struct cinergyt2 *cinergyt2)
872 {
873 schedule_delayed_work(&cinergyt2->rc_query_work, HZ/2);
874 }
875
876 #else
877
878 static inline int cinergyt2_register_rc(struct cinergyt2 *cinergyt2) { return 0; }
879 static inline void cinergyt2_unregister_rc(struct cinergyt2 *cinergyt2) { }
880 static inline void cinergyt2_suspend_rc(struct cinergyt2 *cinergyt2) { }
881 static inline void cinergyt2_resume_rc(struct cinergyt2 *cinergyt2) { }
882
883 #endif /* ENABLE_RC */
884
885 static void cinergyt2_query (struct work_struct *work)
886 {
887 struct cinergyt2 *cinergyt2 =
888 container_of(work, struct cinergyt2, query_work.work);
889 char cmd [] = { CINERGYT2_EP1_GET_TUNER_STATUS };
890 struct dvbt_get_status_msg *s = &cinergyt2->status;
891 uint8_t lock_bits;
892 uint32_t unc;
893
894 if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
895 return;
896
897 unc = s->uncorrected_block_count;
898 lock_bits = s->lock_bits;
899
900 cinergyt2_command(cinergyt2, cmd, sizeof(cmd), (char *) s, sizeof(*s));
901
902 unc += le32_to_cpu(s->uncorrected_block_count);
903 s->uncorrected_block_count = unc;
904
905 if (lock_bits != s->lock_bits) {
906 wake_up_interruptible(&cinergyt2->poll_wq);
907 cinergyt2->pending_fe_events++;
908 }
909
910 schedule_delayed_work(&cinergyt2->query_work,
911 msecs_to_jiffies(QUERY_INTERVAL));
912
913 mutex_unlock(&cinergyt2->sem);
914 }
915
916 static int cinergyt2_probe (struct usb_interface *intf,
917 const struct usb_device_id *id)
918 {
919 struct cinergyt2 *cinergyt2;
920 int err;
921
922 if (!(cinergyt2 = kzalloc (sizeof(struct cinergyt2), GFP_KERNEL))) {
923 dprintk(1, "out of memory?!?\n");
924 return -ENOMEM;
925 }
926
927 usb_set_intfdata (intf, (void *) cinergyt2);
928
929 mutex_init(&cinergyt2->sem);
930 mutex_init(&cinergyt2->wq_sem);
931 init_waitqueue_head (&cinergyt2->poll_wq);
932 INIT_DELAYED_WORK(&cinergyt2->query_work, cinergyt2_query);
933
934 cinergyt2->udev = interface_to_usbdev(intf);
935 cinergyt2->param.cmd = CINERGYT2_EP1_SET_TUNER_PARAMETERS;
936
937 if (cinergyt2_alloc_stream_urbs (cinergyt2) < 0) {
938 dprintk(1, "unable to allocate stream urbs\n");
939 kfree(cinergyt2);
940 return -ENOMEM;
941 }
942
943 err = dvb_register_adapter(&cinergyt2->adapter, DRIVER_NAME,
944 THIS_MODULE, &cinergyt2->udev->dev,
945 adapter_nr);
946 if (err < 0) {
947 kfree(cinergyt2);
948 return err;
949 }
950
951 cinergyt2->demux.priv = cinergyt2;
952 cinergyt2->demux.filternum = 256;
953 cinergyt2->demux.feednum = 256;
954 cinergyt2->demux.start_feed = cinergyt2_start_feed;
955 cinergyt2->demux.stop_feed = cinergyt2_stop_feed;
956 cinergyt2->demux.dmx.capabilities = DMX_TS_FILTERING |
957 DMX_SECTION_FILTERING |
958 DMX_MEMORY_BASED_FILTERING;
959
960 if ((err = dvb_dmx_init(&cinergyt2->demux)) < 0) {
961 dprintk(1, "dvb_dmx_init() failed (err = %d)\n", err);
962 goto bailout;
963 }
964
965 cinergyt2->dmxdev.filternum = cinergyt2->demux.filternum;
966 cinergyt2->dmxdev.demux = &cinergyt2->demux.dmx;
967 cinergyt2->dmxdev.capabilities = 0;
968
969 if ((err = dvb_dmxdev_init(&cinergyt2->dmxdev, &cinergyt2->adapter)) < 0) {
970 dprintk(1, "dvb_dmxdev_init() failed (err = %d)\n", err);
971 goto bailout;
972 }
973
974 if (dvb_net_init(&cinergyt2->adapter, &cinergyt2->dvbnet, &cinergyt2->demux.dmx))
975 dprintk(1, "dvb_net_init() failed!\n");
976
977 dvb_register_device(&cinergyt2->adapter, &cinergyt2->fedev,
978 &cinergyt2_fe_template, cinergyt2,
979 DVB_DEVICE_FRONTEND);
980
981 err = cinergyt2_register_rc(cinergyt2);
982 if (err)
983 goto bailout;
984
985 return 0;
986
987 bailout:
988 dvb_net_release(&cinergyt2->dvbnet);
989 dvb_dmxdev_release(&cinergyt2->dmxdev);
990 dvb_dmx_release(&cinergyt2->demux);
991 dvb_unregister_adapter(&cinergyt2->adapter);
992 cinergyt2_free_stream_urbs(cinergyt2);
993 kfree(cinergyt2);
994 return -ENOMEM;
995 }
996
997 static void cinergyt2_disconnect (struct usb_interface *intf)
998 {
999 struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
1000
1001 cinergyt2_unregister_rc(cinergyt2);
1002 cancel_rearming_delayed_work(&cinergyt2->query_work);
1003 wake_up_interruptible(&cinergyt2->poll_wq);
1004
1005 cinergyt2->demux.dmx.close(&cinergyt2->demux.dmx);
1006 cinergyt2->disconnect_pending = 1;
1007
1008 if (!atomic_read(&cinergyt2->inuse))
1009 cinergyt2_unregister(cinergyt2);
1010 }
1011
1012 static int cinergyt2_suspend (struct usb_interface *intf, pm_message_t state)
1013 {
1014 struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
1015
1016 if (cinergyt2->disconnect_pending)
1017 return -EAGAIN;
1018 if (mutex_lock_interruptible(&cinergyt2->wq_sem))
1019 return -ERESTARTSYS;
1020
1021 cinergyt2_suspend_rc(cinergyt2);
1022 cancel_rearming_delayed_work(&cinergyt2->query_work);
1023
1024 mutex_lock(&cinergyt2->sem);
1025 if (cinergyt2->streaming)
1026 cinergyt2_stop_stream_xfer(cinergyt2);
1027 cinergyt2_sleep(cinergyt2, 1);
1028 mutex_unlock(&cinergyt2->sem);
1029
1030 mutex_unlock(&cinergyt2->wq_sem);
1031
1032 return 0;
1033 }
1034
1035 static int cinergyt2_resume (struct usb_interface *intf)
1036 {
1037 struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
1038 struct dvbt_set_parameters_msg *param = &cinergyt2->param;
1039 int err = -EAGAIN;
1040
1041 if (cinergyt2->disconnect_pending)
1042 goto out;
1043 err = mutex_lock_interruptible(&cinergyt2->wq_sem);
1044 if (err)
1045 goto out;
1046
1047 err = mutex_lock_interruptible(&cinergyt2->sem);
1048 if (err)
1049 goto out_unlock1;
1050
1051 if (!cinergyt2->sleeping) {
1052 cinergyt2_sleep(cinergyt2, 0);
1053 cinergyt2_command(cinergyt2, (char *) param, sizeof(*param), NULL, 0);
1054 if (cinergyt2->streaming)
1055 cinergyt2_start_stream_xfer(cinergyt2);
1056 schedule_delayed_work(&cinergyt2->query_work, HZ/2);
1057 }
1058
1059 cinergyt2_resume_rc(cinergyt2);
1060
1061 mutex_unlock(&cinergyt2->sem);
1062 out_unlock1:
1063 mutex_unlock(&cinergyt2->wq_sem);
1064 out:
1065 return err;
1066 }
1067
1068 static const struct usb_device_id cinergyt2_table [] __devinitdata = {
1069 { USB_DEVICE(0x0ccd, 0x0038) },
1070 { 0 }
1071 };
1072
1073 MODULE_DEVICE_TABLE(usb, cinergyt2_table);
1074
1075 static struct usb_driver cinergyt2_driver = {
1076 .name = "cinergyT2",
1077 .probe = cinergyt2_probe,
1078 .disconnect = cinergyt2_disconnect,
1079 .suspend = cinergyt2_suspend,
1080 .resume = cinergyt2_resume,
1081 .id_table = cinergyt2_table
1082 };
1083
1084 static int __init cinergyt2_init (void)
1085 {
1086 int err;
1087
1088 if ((err = usb_register(&cinergyt2_driver)) < 0)
1089 dprintk(1, "usb_register() failed! (err %i)\n", err);
1090
1091 return err;
1092 }
1093
1094 static void __exit cinergyt2_exit (void)
1095 {
1096 usb_deregister(&cinergyt2_driver);
1097 }
1098
1099 module_init (cinergyt2_init);
1100 module_exit (cinergyt2_exit);
1101
1102 MODULE_LICENSE("GPL");
1103 MODULE_AUTHOR("Holger Waechtler, Daniel Mack");
Mirror for ia64_pv_ops.git