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[XFRM]: skb_cow_data() does not set proper owner for new skbs.
[linux-2.6/verdex.git] / drivers / media / dvb / cinergyT2 / cinergyT2.c
blob96c57fde95a0da96efd4e16f47c8417837ee7a2c
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/version.h>
29 #include <linux/slab.h>
30 #include <linux/usb.h>
31 #include <linux/pci.h>
32 #include <linux/input.h>
33 #include <linux/dvb/frontend.h>
34
35 #include "dmxdev.h"
36 #include "dvb_demux.h"
37 #include "dvb_net.h"
38
39
40 #ifdef CONFIG_DVB_CINERGYT2_TUNING
41 #define STREAM_URB_COUNT (CONFIG_DVB_CINERGYT2_STREAM_URB_COUNT)
42 #define STREAM_BUF_SIZE (CONFIG_DVB_CINERGYT2_STREAM_BUF_SIZE)
43 #define QUERY_INTERVAL (CONFIG_DVB_CINERGYT2_QUERY_INTERVAL)
44 #ifdef CONFIG_DVB_CINERGYT2_ENABLE_RC_INPUT_DEVICE
45 #define RC_QUERY_INTERVAL (CONFIG_DVB_CINERGYT2_RC_QUERY_INTERVAL)
46 #define ENABLE_RC (1)
47 #endif
48 #else
49 #define STREAM_URB_COUNT (32)
50 #define STREAM_BUF_SIZE (512) /* bytes */
51 #define ENABLE_RC (1)
52 #define RC_QUERY_INTERVAL (100) /* milliseconds */
53 #define QUERY_INTERVAL (333) /* milliseconds */
54 #endif
55
56 #define DRIVER_NAME "TerraTec/qanu USB2.0 Highspeed DVB-T Receiver"
57
58 static int debug;
59 module_param_named(debug, debug, int, 0644);
60 MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off).");
61
62 #define dprintk(level, args...) \
63 do { \
64 if ((debug & level)) { \
65 printk("%s: %s(): ", __stringify(KBUILD_MODNAME), \
66 __FUNCTION__); \
67 printk(args); } \
68 } while (0)
69
70 enum cinergyt2_ep1_cmd {
71 CINERGYT2_EP1_PID_TABLE_RESET = 0x01,
72 CINERGYT2_EP1_PID_SETUP = 0x02,
73 CINERGYT2_EP1_CONTROL_STREAM_TRANSFER = 0x03,
74 CINERGYT2_EP1_SET_TUNER_PARAMETERS = 0x04,
75 CINERGYT2_EP1_GET_TUNER_STATUS = 0x05,
76 CINERGYT2_EP1_START_SCAN = 0x06,
77 CINERGYT2_EP1_CONTINUE_SCAN = 0x07,
78 CINERGYT2_EP1_GET_RC_EVENTS = 0x08,
79 CINERGYT2_EP1_SLEEP_MODE = 0x09
80 };
81
82 struct dvbt_set_parameters_msg {
83 uint8_t cmd;
84 uint32_t freq;
85 uint8_t bandwidth;
86 uint16_t tps;
87 uint8_t flags;
88 } __attribute__((packed));
89
90 struct dvbt_get_status_msg {
91 uint32_t freq;
92 uint8_t bandwidth;
93 uint16_t tps;
94 uint8_t flags;
95 uint16_t gain;
96 uint8_t snr;
97 uint32_t viterbi_error_rate;
98 uint32_t rs_error_rate;
99 uint32_t uncorrected_block_count;
100 uint8_t lock_bits;
101 uint8_t prev_lock_bits;
102 } __attribute__((packed));
103
104 static struct dvb_frontend_info cinergyt2_fe_info = {
105 .name = DRIVER_NAME,
106 .type = FE_OFDM,
107 .frequency_min = 174000000,
108 .frequency_max = 862000000,
109 .frequency_stepsize = 166667,
110 .caps = FE_CAN_INVERSION_AUTO | FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 |
111 FE_CAN_FEC_3_4 | FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 |
112 FE_CAN_FEC_AUTO |
113 FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
114 FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO |
115 FE_CAN_HIERARCHY_AUTO | FE_CAN_RECOVER | FE_CAN_MUTE_TS
116 };
117
118 struct cinergyt2 {
119 struct dvb_demux demux;
120 struct usb_device *udev;
121 struct semaphore sem;
122 struct dvb_adapter adapter;
123 struct dvb_device *fedev;
124 struct dmxdev dmxdev;
125 struct dvb_net dvbnet;
126
127 int streaming;
128 int sleeping;
129
130 struct dvbt_set_parameters_msg param;
131 struct dvbt_get_status_msg status;
132 struct work_struct query_work;
133
134 wait_queue_head_t poll_wq;
135 int pending_fe_events;
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 struct work_struct rc_query_work;
144 int rc_input_event;
145 #endif
146 };
147
148 enum {
149 CINERGYT2_RC_EVENT_TYPE_NONE = 0x00,
150 CINERGYT2_RC_EVENT_TYPE_NEC = 0x01,
151 CINERGYT2_RC_EVENT_TYPE_RC5 = 0x02
152 };
153
154 struct cinergyt2_rc_event {
155 char type;
156 uint32_t value;
157 } __attribute__((packed));
158
159 static const uint32_t rc_keys [] = {
160 CINERGYT2_RC_EVENT_TYPE_NEC, 0xfe01eb04, KEY_POWER,
161 CINERGYT2_RC_EVENT_TYPE_NEC, 0xfd02eb04, KEY_1,
162 CINERGYT2_RC_EVENT_TYPE_NEC, 0xfc03eb04, KEY_2,
163 CINERGYT2_RC_EVENT_TYPE_NEC, 0xfb04eb04, KEY_3,
164 CINERGYT2_RC_EVENT_TYPE_NEC, 0xfa05eb04, KEY_4,
165 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf906eb04, KEY_5,
166 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf807eb04, KEY_6,
167 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf708eb04, KEY_7,
168 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf609eb04, KEY_8,
169 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf50aeb04, KEY_9,
170 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf30ceb04, KEY_0,
171 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf40beb04, KEY_VIDEO,
172 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf20deb04, KEY_REFRESH,
173 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf10eeb04, KEY_SELECT,
174 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf00feb04, KEY_EPG,
175 CINERGYT2_RC_EVENT_TYPE_NEC, 0xef10eb04, KEY_UP,
176 CINERGYT2_RC_EVENT_TYPE_NEC, 0xeb14eb04, KEY_DOWN,
177 CINERGYT2_RC_EVENT_TYPE_NEC, 0xee11eb04, KEY_LEFT,
178 CINERGYT2_RC_EVENT_TYPE_NEC, 0xec13eb04, KEY_RIGHT,
179 CINERGYT2_RC_EVENT_TYPE_NEC, 0xed12eb04, KEY_OK,
180 CINERGYT2_RC_EVENT_TYPE_NEC, 0xea15eb04, KEY_TEXT,
181 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe916eb04, KEY_INFO,
182 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe817eb04, KEY_RED,
183 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe718eb04, KEY_GREEN,
184 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe619eb04, KEY_YELLOW,
185 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe51aeb04, KEY_BLUE,
186 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe31ceb04, KEY_VOLUMEUP,
187 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe11eeb04, KEY_VOLUMEDOWN,
188 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe21deb04, KEY_MUTE,
189 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe41beb04, KEY_CHANNELUP,
190 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe01feb04, KEY_CHANNELDOWN,
191 CINERGYT2_RC_EVENT_TYPE_NEC, 0xbf40eb04, KEY_PAUSE,
192 CINERGYT2_RC_EVENT_TYPE_NEC, 0xb34ceb04, KEY_PLAY,
193 CINERGYT2_RC_EVENT_TYPE_NEC, 0xa758eb04, KEY_RECORD,
194 CINERGYT2_RC_EVENT_TYPE_NEC, 0xab54eb04, KEY_PREVIOUS,
195 CINERGYT2_RC_EVENT_TYPE_NEC, 0xb748eb04, KEY_STOP,
196 CINERGYT2_RC_EVENT_TYPE_NEC, 0xa35ceb04, KEY_NEXT
197 };
198
199 static int cinergyt2_command (struct cinergyt2 *cinergyt2,
200 char *send_buf, int send_buf_len,
201 char *recv_buf, int recv_buf_len)
202 {
203 int actual_len;
204 char dummy;
205 int ret;
206
207 ret = usb_bulk_msg(cinergyt2->udev, usb_sndbulkpipe(cinergyt2->udev, 1),
208 send_buf, send_buf_len, &actual_len, 1000);
209
210 if (ret)
211 dprintk(1, "usb_bulk_msg (send) failed, err %i\n", ret);
212
213 if (!recv_buf)
214 recv_buf = &dummy;
215
216 ret = usb_bulk_msg(cinergyt2->udev, usb_rcvbulkpipe(cinergyt2->udev, 1),
217 recv_buf, recv_buf_len, &actual_len, 1000);
218
219 if (ret)
220 dprintk(1, "usb_bulk_msg (read) failed, err %i\n", ret);
221
222 return ret ? ret : actual_len;
223 }
224
225 static void cinergyt2_control_stream_transfer (struct cinergyt2 *cinergyt2, int enable)
226 {
227 char buf [] = { CINERGYT2_EP1_CONTROL_STREAM_TRANSFER, enable ? 1 : 0 };
228 cinergyt2_command(cinergyt2, buf, sizeof(buf), NULL, 0);
229 }
230
231 static void cinergyt2_sleep (struct cinergyt2 *cinergyt2, int sleep)
232 {
233 char buf [] = { CINERGYT2_EP1_SLEEP_MODE, sleep ? 1 : 0 };
234 cinergyt2_command(cinergyt2, buf, sizeof(buf), NULL, 0);
235 cinergyt2->sleeping = sleep;
236 }
237
238 static void cinergyt2_stream_irq (struct urb *urb, struct pt_regs *regs);
239
240 static int cinergyt2_submit_stream_urb (struct cinergyt2 *cinergyt2, struct urb *urb)
241 {
242 int err;
243
244 usb_fill_bulk_urb(urb,
245 cinergyt2->udev,
246 usb_rcvbulkpipe(cinergyt2->udev, 0x2),
247 urb->transfer_buffer,
248 STREAM_BUF_SIZE,
249 cinergyt2_stream_irq,
250 cinergyt2);
251
252 if ((err = usb_submit_urb(urb, GFP_ATOMIC)))
253 dprintk(1, "urb submission failed (err = %i)!\n", err);
254
255 return err;
256 }
257
258 static void cinergyt2_stream_irq (struct urb *urb, struct pt_regs *regs)
259 {
260 struct cinergyt2 *cinergyt2 = urb->context;
261
262 if (urb->actual_length > 0)
263 dvb_dmx_swfilter(&cinergyt2->demux,
264 urb->transfer_buffer, urb->actual_length);
265
266 if (cinergyt2->streaming)
267 cinergyt2_submit_stream_urb(cinergyt2, urb);
268 }
269
270 static void cinergyt2_free_stream_urbs (struct cinergyt2 *cinergyt2)
271 {
272 int i;
273
274 for (i=0; i<STREAM_URB_COUNT; i++)
275 if (cinergyt2->stream_urb[i])
276 usb_free_urb(cinergyt2->stream_urb[i]);
277
278 pci_free_consistent(NULL, STREAM_URB_COUNT*STREAM_BUF_SIZE,
279 cinergyt2->streambuf, cinergyt2->streambuf_dmahandle);
280 }
281
282 static int cinergyt2_alloc_stream_urbs (struct cinergyt2 *cinergyt2)
283 {
284 int i;
285
286 cinergyt2->streambuf = pci_alloc_consistent(NULL,
287 STREAM_URB_COUNT*STREAM_BUF_SIZE,
288 &cinergyt2->streambuf_dmahandle);
289 if (!cinergyt2->streambuf) {
290 dprintk(1, "failed to alloc consistent stream memory area, bailing out!\n");
291 return -ENOMEM;
292 }
293
294 memset(cinergyt2->streambuf, 0, STREAM_URB_COUNT*STREAM_BUF_SIZE);
295
296 for (i=0; i<STREAM_URB_COUNT; i++) {
297 struct urb *urb;
298
299 if (!(urb = usb_alloc_urb(0, GFP_ATOMIC))) {
300 dprintk(1, "failed to alloc consistent stream urbs, bailing out!\n");
301 cinergyt2_free_stream_urbs(cinergyt2);
302 return -ENOMEM;
303 }
304
305 urb->transfer_buffer = cinergyt2->streambuf + i * STREAM_BUF_SIZE;
306 urb->transfer_buffer_length = STREAM_BUF_SIZE;
307
308 cinergyt2->stream_urb[i] = urb;
309 }
310
311 return 0;
312 }
313
314 static void cinergyt2_stop_stream_xfer (struct cinergyt2 *cinergyt2)
315 {
316 int i;
317
318 cinergyt2_control_stream_transfer(cinergyt2, 0);
319
320 for (i=0; i<STREAM_URB_COUNT; i++)
321 if (cinergyt2->stream_urb[i])
322 usb_kill_urb(cinergyt2->stream_urb[i]);
323 }
324
325 static int cinergyt2_start_stream_xfer (struct cinergyt2 *cinergyt2)
326 {
327 int i, err;
328
329 for (i=0; i<STREAM_URB_COUNT; i++) {
330 if ((err = cinergyt2_submit_stream_urb(cinergyt2, cinergyt2->stream_urb[i]))) {
331 cinergyt2_stop_stream_xfer(cinergyt2);
332 dprintk(1, "failed urb submission (%i: err = %i)!\n", i, err);
333 return err;
334 }
335 }
336
337 cinergyt2_control_stream_transfer(cinergyt2, 1);
338 return 0;
339 }
340
341 static int cinergyt2_start_feed(struct dvb_demux_feed *dvbdmxfeed)
342 {
343 struct dvb_demux *demux = dvbdmxfeed->demux;
344 struct cinergyt2 *cinergyt2 = demux->priv;
345
346 if (down_interruptible(&cinergyt2->sem))
347 return -ERESTARTSYS;
348
349 if (cinergyt2->streaming == 0)
350 cinergyt2_start_stream_xfer(cinergyt2);
351
352 cinergyt2->streaming++;
353 up(&cinergyt2->sem);
354 return 0;
355 }
356
357 static int cinergyt2_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
358 {
359 struct dvb_demux *demux = dvbdmxfeed->demux;
360 struct cinergyt2 *cinergyt2 = demux->priv;
361
362 if (down_interruptible(&cinergyt2->sem))
363 return -ERESTARTSYS;
364
365 if (--cinergyt2->streaming == 0)
366 cinergyt2_stop_stream_xfer(cinergyt2);
367
368 up(&cinergyt2->sem);
369 return 0;
370 }
371
372 /**
373 * convert linux-dvb frontend parameter set into TPS.
374 * See ETSI ETS-300744, section 4.6.2, table 9 for details.
375 *
376 * This function is probably reusable and may better get placed in a support
377 * library.
378 *
379 * We replace errornous fields by default TPS fields (the ones with value 0).
380 */
381 static uint16_t compute_tps (struct dvb_frontend_parameters *p)
382 {
383 struct dvb_ofdm_parameters *op = &p->u.ofdm;
384 uint16_t tps = 0;
385
386 switch (op->code_rate_HP) {
387 case FEC_2_3:
388 tps |= (1 << 7);
389 break;
390 case FEC_3_4:
391 tps |= (2 << 7);
392 break;
393 case FEC_5_6:
394 tps |= (3 << 7);
395 break;
396 case FEC_7_8:
397 tps |= (4 << 7);
398 break;
399 case FEC_1_2:
400 case FEC_AUTO:
401 default:
402 /* tps |= (0 << 7) */;
403 }
404
405 switch (op->code_rate_LP) {
406 case FEC_2_3:
407 tps |= (1 << 4);
408 break;
409 case FEC_3_4:
410 tps |= (2 << 4);
411 break;
412 case FEC_5_6:
413 tps |= (3 << 4);
414 break;
415 case FEC_7_8:
416 tps |= (4 << 4);
417 break;
418 case FEC_1_2:
419 case FEC_AUTO:
420 default:
421 /* tps |= (0 << 4) */;
422 }
423
424 switch (op->constellation) {
425 case QAM_16:
426 tps |= (1 << 13);
427 break;
428 case QAM_64:
429 tps |= (2 << 13);
430 break;
431 case QPSK:
432 default:
433 /* tps |= (0 << 13) */;
434 }
435
436 switch (op->transmission_mode) {
437 case TRANSMISSION_MODE_8K:
438 tps |= (1 << 0);
439 break;
440 case TRANSMISSION_MODE_2K:
441 default:
442 /* tps |= (0 << 0) */;
443 }
444
445 switch (op->guard_interval) {
446 case GUARD_INTERVAL_1_16:
447 tps |= (1 << 2);
448 break;
449 case GUARD_INTERVAL_1_8:
450 tps |= (2 << 2);
451 break;
452 case GUARD_INTERVAL_1_4:
453 tps |= (3 << 2);
454 break;
455 case GUARD_INTERVAL_1_32:
456 default:
457 /* tps |= (0 << 2) */;
458 }
459
460 switch (op->hierarchy_information) {
461 case HIERARCHY_1:
462 tps |= (1 << 10);
463 break;
464 case HIERARCHY_2:
465 tps |= (2 << 10);
466 break;
467 case HIERARCHY_4:
468 tps |= (3 << 10);
469 break;
470 case HIERARCHY_NONE:
471 default:
472 /* tps |= (0 << 10) */;
473 }
474
475 return tps;
476 }
477
478 static int cinergyt2_open (struct inode *inode, struct file *file)
479 {
480 struct dvb_device *dvbdev = file->private_data;
481 struct cinergyt2 *cinergyt2 = dvbdev->priv;
482 int err;
483
484 if ((err = dvb_generic_open(inode, file)))
485 return err;
486
487 if (down_interruptible(&cinergyt2->sem))
488 return -ERESTARTSYS;
489
490 if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
491 cinergyt2_sleep(cinergyt2, 0);
492 schedule_delayed_work(&cinergyt2->query_work, HZ/2);
493 }
494
495 up(&cinergyt2->sem);
496 return 0;
497 }
498
499 static int cinergyt2_release (struct inode *inode, struct file *file)
500 {
501 struct dvb_device *dvbdev = file->private_data;
502 struct cinergyt2 *cinergyt2 = dvbdev->priv;
503
504 if (down_interruptible(&cinergyt2->sem))
505 return -ERESTARTSYS;
506
507 if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
508 cancel_delayed_work(&cinergyt2->query_work);
509 flush_scheduled_work();
510 cinergyt2_sleep(cinergyt2, 1);
511 }
512
513 up(&cinergyt2->sem);
514
515 return dvb_generic_release(inode, file);
516 }
517
518 static unsigned int cinergyt2_poll (struct file *file, struct poll_table_struct *wait)
519 {
520 struct dvb_device *dvbdev = file->private_data;
521 struct cinergyt2 *cinergyt2 = dvbdev->priv;
522 poll_wait(file, &cinergyt2->poll_wq, wait);
523 return (POLLIN | POLLRDNORM | POLLPRI);
524 }
525
526
527 static int cinergyt2_ioctl (struct inode *inode, struct file *file,
528 unsigned cmd, unsigned long arg)
529 {
530 struct dvb_device *dvbdev = file->private_data;
531 struct cinergyt2 *cinergyt2 = dvbdev->priv;
532 struct dvbt_get_status_msg *stat = &cinergyt2->status;
533 fe_status_t status = 0;
534
535 switch (cmd) {
536 case FE_GET_INFO:
537 return copy_to_user((void __user*) arg, &cinergyt2_fe_info,
538 sizeof(struct dvb_frontend_info));
539
540 case FE_READ_STATUS:
541 if (0xffff - le16_to_cpu(stat->gain) > 30)
542 status |= FE_HAS_SIGNAL;
543 if (stat->lock_bits & (1 << 6))
544 status |= FE_HAS_LOCK;
545 if (stat->lock_bits & (1 << 5))
546 status |= FE_HAS_SYNC;
547 if (stat->lock_bits & (1 << 4))
548 status |= FE_HAS_CARRIER;
549 if (stat->lock_bits & (1 << 1))
550 status |= FE_HAS_VITERBI;
551
552 return copy_to_user((void __user*) arg, &status, sizeof(status));
553
554 case FE_READ_BER:
555 return put_user(le32_to_cpu(stat->viterbi_error_rate),
556 (__u32 __user *) arg);
557
558 case FE_READ_SIGNAL_STRENGTH:
559 return put_user(0xffff - le16_to_cpu(stat->gain),
560 (__u16 __user *) arg);
561
562 case FE_READ_SNR:
563 return put_user((stat->snr << 8) | stat->snr,
564 (__u16 __user *) arg);
565
566 case FE_READ_UNCORRECTED_BLOCKS:
567 /* UNC are already converted to host byte order... */
568 return put_user(stat->uncorrected_block_count,
569 (__u32 __user *) arg);
570
571 case FE_SET_FRONTEND:
572 {
573 struct dvbt_set_parameters_msg *param = &cinergyt2->param;
574 struct dvb_frontend_parameters p;
575 int err;
576
577 if ((file->f_flags & O_ACCMODE) == O_RDONLY)
578 return -EPERM;
579
580 if (copy_from_user(&p, (void __user*) arg, sizeof(p)))
581 return -EFAULT;
582
583 if (down_interruptible(&cinergyt2->sem))
584 return -ERESTARTSYS;
585
586 param->cmd = CINERGYT2_EP1_SET_TUNER_PARAMETERS;
587 param->tps = cpu_to_le16(compute_tps(&p));
588 param->freq = cpu_to_le32(p.frequency / 1000);
589 param->bandwidth = 8 - p.u.ofdm.bandwidth - BANDWIDTH_8_MHZ;
590
591 stat->lock_bits = 0;
592 cinergyt2->pending_fe_events++;
593 wake_up_interruptible(&cinergyt2->poll_wq);
594
595 err = cinergyt2_command(cinergyt2,
596 (char *) param, sizeof(*param),
597 NULL, 0);
598
599 up(&cinergyt2->sem);
600
601 return (err < 0) ? err : 0;
602 }
603
604 case FE_GET_FRONTEND:
605 /**
606 * trivial to implement (see struct dvbt_get_status_msg).
607 * equivalent to FE_READ ioctls, but needs
608 * TPS -> linux-dvb parameter set conversion. Feel free
609 * to implement this and send us a patch if you need this
610 * functionality.
611 */
612 break;
613
614 case FE_GET_EVENT:
615 {
616 /**
617 * for now we only fill the status field. the parameters
618 * are trivial to fill as soon FE_GET_FRONTEND is done.
619 */
620 struct dvb_frontend_event __user *e = (void __user *) arg;
621 if (cinergyt2->pending_fe_events == 0) {
622 if (file->f_flags & O_NONBLOCK)
623 return -EWOULDBLOCK;
624 wait_event_interruptible(cinergyt2->poll_wq,
625 cinergyt2->pending_fe_events > 0);
626 }
627 cinergyt2->pending_fe_events = 0;
628 return cinergyt2_ioctl(inode, file, FE_READ_STATUS,
629 (unsigned long) &e->status);
630 }
631
632 default:
633 ;
634 }
635
636 return -EINVAL;
637 }
638
639 static int cinergyt2_mmap(struct file *file, struct vm_area_struct *vma)
640 {
641 struct dvb_device *dvbdev = file->private_data;
642 struct cinergyt2 *cinergyt2 = dvbdev->priv;
643 int ret = 0;
644
645 lock_kernel();
646
647 if (vma->vm_flags & (VM_WRITE | VM_EXEC)) {
648 ret = -EPERM;
649 goto bailout;
650 }
651
652 if (vma->vm_end > vma->vm_start + STREAM_URB_COUNT * STREAM_BUF_SIZE) {
653 ret = -EINVAL;
654 goto bailout;
655 }
656
657 vma->vm_flags |= (VM_IO | VM_DONTCOPY);
658 vma->vm_file = file;
659
660 ret = remap_pfn_range(vma, vma->vm_start,
661 virt_to_phys(cinergyt2->streambuf) >> PAGE_SHIFT,
662 vma->vm_end - vma->vm_start,
663 vma->vm_page_prot) ? -EAGAIN : 0;
664 bailout:
665 unlock_kernel();
666 return ret;
667 }
668
669 static struct file_operations cinergyt2_fops = {
670 .owner = THIS_MODULE,
671 .ioctl = cinergyt2_ioctl,
672 .poll = cinergyt2_poll,
673 .open = cinergyt2_open,
674 .release = cinergyt2_release,
675 .mmap = cinergyt2_mmap
676 };
677
678 static struct dvb_device cinergyt2_fe_template = {
679 .users = ~0,
680 .writers = 1,
681 .readers = (~0)-1,
682 .fops = &cinergyt2_fops
683 };
684
685 #ifdef ENABLE_RC
686 static void cinergyt2_query_rc (void *data)
687 {
688 struct cinergyt2 *cinergyt2 = (struct cinergyt2 *) data;
689 char buf [1] = { CINERGYT2_EP1_GET_RC_EVENTS };
690 struct cinergyt2_rc_event rc_events[12];
691 int n, len;
692
693 if (down_interruptible(&cinergyt2->sem))
694 return;
695
696 len = cinergyt2_command(cinergyt2, buf, sizeof(buf),
697 (char *) rc_events, sizeof(rc_events));
698
699 for (n=0; len>0 && n<(len/sizeof(rc_events[0])); n++) {
700 int i;
701
702 if (rc_events[n].type == CINERGYT2_RC_EVENT_TYPE_NEC &&
703 rc_events[n].value == ~0)
704 {
705 /**
706 * keyrepeat bit. If we would handle this properly
707 * we would need to emit down events as long the
708 * keyrepeat goes, a up event if no further
709 * repeat bits occur. Would need a timer to implement
710 * and no other driver does this, so we simply
711 * emit the last key up/down sequence again.
712 */
713 } else {
714 cinergyt2->rc_input_event = KEY_MAX;
715 for (i=0; i<sizeof(rc_keys)/sizeof(rc_keys[0]); i+=3) {
716 if (rc_keys[i+0] == rc_events[n].type &&
717 rc_keys[i+1] == rc_events[n].value)
718 {
719 cinergyt2->rc_input_event = rc_keys[i+2];
720 break;
721 }
722 }
723 }
724
725 if (cinergyt2->rc_input_event != KEY_MAX) {
726 input_report_key(&cinergyt2->rc_input_dev, cinergyt2->rc_input_event, 1);
727 input_report_key(&cinergyt2->rc_input_dev, cinergyt2->rc_input_event, 0);
728 input_sync(&cinergyt2->rc_input_dev);
729 }
730 }
731
732 schedule_delayed_work(&cinergyt2->rc_query_work,
733 msecs_to_jiffies(RC_QUERY_INTERVAL));
734
735 up(&cinergyt2->sem);
736 }
737 #endif
738
739 static void cinergyt2_query (void *data)
740 {
741 struct cinergyt2 *cinergyt2 = (struct cinergyt2 *) data;
742 char cmd [] = { CINERGYT2_EP1_GET_TUNER_STATUS };
743 struct dvbt_get_status_msg *s = &cinergyt2->status;
744 uint8_t lock_bits;
745 uint32_t unc;
746
747 if (down_interruptible(&cinergyt2->sem))
748 return;
749
750 unc = s->uncorrected_block_count;
751 lock_bits = s->lock_bits;
752
753 cinergyt2_command(cinergyt2, cmd, sizeof(cmd), (char *) s, sizeof(*s));
754
755 unc += le32_to_cpu(s->uncorrected_block_count);
756 s->uncorrected_block_count = unc;
757
758 if (lock_bits != s->lock_bits) {
759 wake_up_interruptible(&cinergyt2->poll_wq);
760 cinergyt2->pending_fe_events++;
761 }
762
763 schedule_delayed_work(&cinergyt2->query_work,
764 msecs_to_jiffies(QUERY_INTERVAL));
765
766 up(&cinergyt2->sem);
767 }
768
769 static int cinergyt2_probe (struct usb_interface *intf,
770 const struct usb_device_id *id)
771 {
772 struct cinergyt2 *cinergyt2;
773 int i, err;
774
775 if (!(cinergyt2 = kmalloc (sizeof(struct cinergyt2), GFP_KERNEL))) {
776 dprintk(1, "out of memory?!?\n");
777 return -ENOMEM;
778 }
779
780 memset (cinergyt2, 0, sizeof (struct cinergyt2));
781 usb_set_intfdata (intf, (void *) cinergyt2);
782
783 init_MUTEX(&cinergyt2->sem);
784 init_waitqueue_head (&cinergyt2->poll_wq);
785 INIT_WORK(&cinergyt2->query_work, cinergyt2_query, cinergyt2);
786
787 cinergyt2->udev = interface_to_usbdev(intf);
788 cinergyt2->param.cmd = CINERGYT2_EP1_SET_TUNER_PARAMETERS;
789
790 if (cinergyt2_alloc_stream_urbs (cinergyt2) < 0) {
791 dprintk(1, "unable to allocate stream urbs\n");
792 kfree(cinergyt2);
793 return -ENOMEM;
794 }
795
796 dvb_register_adapter(&cinergyt2->adapter, DRIVER_NAME, THIS_MODULE);
797
798 cinergyt2->demux.priv = cinergyt2;
799 cinergyt2->demux.filternum = 256;
800 cinergyt2->demux.feednum = 256;
801 cinergyt2->demux.start_feed = cinergyt2_start_feed;
802 cinergyt2->demux.stop_feed = cinergyt2_stop_feed;
803 cinergyt2->demux.dmx.capabilities = DMX_TS_FILTERING |
804 DMX_SECTION_FILTERING |
805 DMX_MEMORY_BASED_FILTERING;
806
807 if ((err = dvb_dmx_init(&cinergyt2->demux)) < 0) {
808 dprintk(1, "dvb_dmx_init() failed (err = %d)\n", err);
809 goto bailout;
810 }
811
812 cinergyt2->dmxdev.filternum = cinergyt2->demux.filternum;
813 cinergyt2->dmxdev.demux = &cinergyt2->demux.dmx;
814 cinergyt2->dmxdev.capabilities = 0;
815
816 if ((err = dvb_dmxdev_init(&cinergyt2->dmxdev, &cinergyt2->adapter)) < 0) {
817 dprintk(1, "dvb_dmxdev_init() failed (err = %d)\n", err);
818 goto bailout;
819 }
820
821 if (dvb_net_init(&cinergyt2->adapter, &cinergyt2->dvbnet, &cinergyt2->demux.dmx))
822 dprintk(1, "dvb_net_init() failed!\n");
823
824 dvb_register_device(&cinergyt2->adapter, &cinergyt2->fedev,
825 &cinergyt2_fe_template, cinergyt2,
826 DVB_DEVICE_FRONTEND);
827
828 #ifdef ENABLE_RC
829 init_input_dev(&cinergyt2->rc_input_dev);
830
831 cinergyt2->rc_input_dev.evbit[0] = BIT(EV_KEY);
832 cinergyt2->rc_input_dev.keycodesize = sizeof(unsigned char);
833 cinergyt2->rc_input_dev.keycodemax = KEY_MAX;
834 cinergyt2->rc_input_dev.name = DRIVER_NAME " remote control";
835
836 for (i=0; i<sizeof(rc_keys)/sizeof(rc_keys[0]); i+=3)
837 set_bit(rc_keys[i+2], cinergyt2->rc_input_dev.keybit);
838
839 input_register_device(&cinergyt2->rc_input_dev);
840
841 cinergyt2->rc_input_event = KEY_MAX;
842
843 INIT_WORK(&cinergyt2->rc_query_work, cinergyt2_query_rc, cinergyt2);
844 schedule_delayed_work(&cinergyt2->rc_query_work, HZ/2);
845 #endif
846 return 0;
847
848 bailout:
849 dvb_dmxdev_release(&cinergyt2->dmxdev);
850 dvb_dmx_release(&cinergyt2->demux);
851 dvb_unregister_adapter (&cinergyt2->adapter);
852 cinergyt2_free_stream_urbs (cinergyt2);
853 kfree(cinergyt2);
854 return -ENOMEM;
855 }
856
857 static void cinergyt2_disconnect (struct usb_interface *intf)
858 {
859 struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
860
861 if (down_interruptible(&cinergyt2->sem))
862 return;
863
864 #ifdef ENABLE_RC
865 cancel_delayed_work(&cinergyt2->rc_query_work);
866 flush_scheduled_work();
867 input_unregister_device(&cinergyt2->rc_input_dev);
868 #endif
869
870 cinergyt2->demux.dmx.close(&cinergyt2->demux.dmx);
871 dvb_net_release(&cinergyt2->dvbnet);
872 dvb_dmxdev_release(&cinergyt2->dmxdev);
873 dvb_dmx_release(&cinergyt2->demux);
874 dvb_unregister_device(cinergyt2->fedev);
875 dvb_unregister_adapter(&cinergyt2->adapter);
876
877 cinergyt2_free_stream_urbs(cinergyt2);
878 up(&cinergyt2->sem);
879 kfree(cinergyt2);
880 }
881
882 static int cinergyt2_suspend (struct usb_interface *intf, pm_message_t state)
883 {
884 struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
885
886 if (down_interruptible(&cinergyt2->sem))
887 return -ERESTARTSYS;
888
889 if (state > 0) { /* state 0 seems to mean DEVICE_PM_ON */
890 struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
891 #ifdef ENABLE_RC
892 cancel_delayed_work(&cinergyt2->rc_query_work);
893 #endif
894 cancel_delayed_work(&cinergyt2->query_work);
895 if (cinergyt2->streaming)
896 cinergyt2_stop_stream_xfer(cinergyt2);
897 flush_scheduled_work();
898 cinergyt2_sleep(cinergyt2, 1);
899 }
900
901 up(&cinergyt2->sem);
902 return 0;
903 }
904
905 static int cinergyt2_resume (struct usb_interface *intf)
906 {
907 struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
908 struct dvbt_set_parameters_msg *param = &cinergyt2->param;
909
910 if (down_interruptible(&cinergyt2->sem))
911 return -ERESTARTSYS;
912
913 if (!cinergyt2->sleeping) {
914 cinergyt2_sleep(cinergyt2, 0);
915 cinergyt2_command(cinergyt2, (char *) param, sizeof(*param), NULL, 0);
916 if (cinergyt2->streaming)
917 cinergyt2_start_stream_xfer(cinergyt2);
918 schedule_delayed_work(&cinergyt2->query_work, HZ/2);
919 }
920
921 #ifdef ENABLE_RC
922 schedule_delayed_work(&cinergyt2->rc_query_work, HZ/2);
923 #endif
924 up(&cinergyt2->sem);
925 return 0;
926 }
927
928 static const struct usb_device_id cinergyt2_table [] __devinitdata = {
929 { USB_DEVICE(0x0ccd, 0x0038) },
930 { 0 }
931 };
932
933 MODULE_DEVICE_TABLE(usb, cinergyt2_table);
934
935 static struct usb_driver cinergyt2_driver = {
936 .owner = THIS_MODULE,
937 .name = "cinergyT2",
938 .probe = cinergyt2_probe,
939 .disconnect = cinergyt2_disconnect,
940 .suspend = cinergyt2_suspend,
941 .resume = cinergyt2_resume,
942 .id_table = cinergyt2_table
943 };
944
945 static int __init cinergyt2_init (void)
946 {
947 int err;
948
949 if ((err = usb_register(&cinergyt2_driver)) < 0)
950 dprintk(1, "usb_register() failed! (err %i)\n", err);
951
952 return err;
953 }
954
955 static void __exit cinergyt2_exit (void)
956 {
957 usb_deregister(&cinergyt2_driver);
958 }
959
960 module_init (cinergyt2_init);
961 module_exit (cinergyt2_exit);
962
963 MODULE_LICENSE("GPL");
964 MODULE_AUTHOR("Holger Waechtler, Daniel Mack");
965
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