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[ARM] Support register switch in nommu mode
[linux-2.6/verdex.git] / drivers / media / dvb / cinergyT2 / cinergyT2.c
blobc4b4c5b6b7c803d2ae7e8c7299901be9380a94fd
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
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 semaphore 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 work_struct 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 work_struct 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, struct pt_regs *regs);
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, struct pt_regs *regs)
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 || down_interruptible(&cinergyt2->sem))
349 return -ERESTARTSYS;
350
351 if (cinergyt2->streaming == 0)
352 cinergyt2_start_stream_xfer(cinergyt2);
353
354 cinergyt2->streaming++;
355 up(&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 || down_interruptible(&cinergyt2->sem))
365 return -ERESTARTSYS;
366
367 if (--cinergyt2->streaming == 0)
368 cinergyt2_stop_stream_xfer(cinergyt2);
369
370 up(&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 || down_interruptible(&cinergyt2->sem))
487 return -ERESTARTSYS;
488
489 if ((err = dvb_generic_open(inode, file))) {
490 up(&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 up(&cinergyt2->sem);
503 return 0;
504 }
505
506 static void cinergyt2_unregister(struct cinergyt2 *cinergyt2)
507 {
508 dvb_unregister_device(cinergyt2->fedev);
509 dvb_unregister_adapter(&cinergyt2->adapter);
510
511 cinergyt2_free_stream_urbs(cinergyt2);
512 kfree(cinergyt2);
513 }
514
515 static int cinergyt2_release (struct inode *inode, struct file *file)
516 {
517 struct dvb_device *dvbdev = file->private_data;
518 struct cinergyt2 *cinergyt2 = dvbdev->priv;
519
520 if (down_interruptible(&cinergyt2->sem))
521 return -ERESTARTSYS;
522
523 if (!cinergyt2->disconnect_pending && (file->f_flags & O_ACCMODE) != O_RDONLY) {
524 cancel_delayed_work(&cinergyt2->query_work);
525 flush_scheduled_work();
526 cinergyt2_sleep(cinergyt2, 1);
527 }
528
529 up(&cinergyt2->sem);
530
531 if (atomic_dec_and_test(&cinergyt2->inuse) && cinergyt2->disconnect_pending) {
532 warn("delayed unregister in release");
533 cinergyt2_unregister(cinergyt2);
534 }
535
536 return dvb_generic_release(inode, file);
537 }
538
539 static unsigned int cinergyt2_poll (struct file *file, struct poll_table_struct *wait)
540 {
541 struct dvb_device *dvbdev = file->private_data;
542 struct cinergyt2 *cinergyt2 = dvbdev->priv;
543
544 if (cinergyt2->disconnect_pending || down_interruptible(&cinergyt2->sem))
545 return -ERESTARTSYS;
546
547 poll_wait(file, &cinergyt2->poll_wq, wait);
548
549 up(&cinergyt2->sem);
550
551 return (POLLIN | POLLRDNORM | POLLPRI);
552 }
553
554
555 static int cinergyt2_ioctl (struct inode *inode, struct file *file,
556 unsigned cmd, unsigned long arg)
557 {
558 struct dvb_device *dvbdev = file->private_data;
559 struct cinergyt2 *cinergyt2 = dvbdev->priv;
560 struct dvbt_get_status_msg *stat = &cinergyt2->status;
561 fe_status_t status = 0;
562
563 switch (cmd) {
564 case FE_GET_INFO:
565 return copy_to_user((void __user*) arg, &cinergyt2_fe_info,
566 sizeof(struct dvb_frontend_info));
567
568 case FE_READ_STATUS:
569 if (0xffff - le16_to_cpu(stat->gain) > 30)
570 status |= FE_HAS_SIGNAL;
571 if (stat->lock_bits & (1 << 6))
572 status |= FE_HAS_LOCK;
573 if (stat->lock_bits & (1 << 5))
574 status |= FE_HAS_SYNC;
575 if (stat->lock_bits & (1 << 4))
576 status |= FE_HAS_CARRIER;
577 if (stat->lock_bits & (1 << 1))
578 status |= FE_HAS_VITERBI;
579
580 return copy_to_user((void __user*) arg, &status, sizeof(status));
581
582 case FE_READ_BER:
583 return put_user(le32_to_cpu(stat->viterbi_error_rate),
584 (__u32 __user *) arg);
585
586 case FE_READ_SIGNAL_STRENGTH:
587 return put_user(0xffff - le16_to_cpu(stat->gain),
588 (__u16 __user *) arg);
589
590 case FE_READ_SNR:
591 return put_user((stat->snr << 8) | stat->snr,
592 (__u16 __user *) arg);
593
594 case FE_READ_UNCORRECTED_BLOCKS:
595 {
596 uint32_t unc_count;
597
598 unc_count = stat->uncorrected_block_count;
599 stat->uncorrected_block_count = 0;
600
601 /* UNC are already converted to host byte order... */
602 return put_user(unc_count,(__u32 __user *) arg);
603 }
604 case FE_SET_FRONTEND:
605 {
606 struct dvbt_set_parameters_msg *param = &cinergyt2->param;
607 struct dvb_frontend_parameters p;
608 int err;
609
610 if ((file->f_flags & O_ACCMODE) == O_RDONLY)
611 return -EPERM;
612
613 if (copy_from_user(&p, (void __user*) arg, sizeof(p)))
614 return -EFAULT;
615
616 if (cinergyt2->disconnect_pending || down_interruptible(&cinergyt2->sem))
617 return -ERESTARTSYS;
618
619 param->cmd = CINERGYT2_EP1_SET_TUNER_PARAMETERS;
620 param->tps = cpu_to_le16(compute_tps(&p));
621 param->freq = cpu_to_le32(p.frequency / 1000);
622 param->bandwidth = 8 - p.u.ofdm.bandwidth - BANDWIDTH_8_MHZ;
623
624 stat->lock_bits = 0;
625 cinergyt2->pending_fe_events++;
626 wake_up_interruptible(&cinergyt2->poll_wq);
627
628 err = cinergyt2_command(cinergyt2,
629 (char *) param, sizeof(*param),
630 NULL, 0);
631
632 up(&cinergyt2->sem);
633
634 return (err < 0) ? err : 0;
635 }
636
637 case FE_GET_FRONTEND:
638 /**
639 * trivial to implement (see struct dvbt_get_status_msg).
640 * equivalent to FE_READ ioctls, but needs
641 * TPS -> linux-dvb parameter set conversion. Feel free
642 * to implement this and send us a patch if you need this
643 * functionality.
644 */
645 break;
646
647 case FE_GET_EVENT:
648 {
649 /**
650 * for now we only fill the status field. the parameters
651 * are trivial to fill as soon FE_GET_FRONTEND is done.
652 */
653 struct dvb_frontend_event __user *e = (void __user *) arg;
654 if (cinergyt2->pending_fe_events == 0) {
655 if (file->f_flags & O_NONBLOCK)
656 return -EWOULDBLOCK;
657 wait_event_interruptible(cinergyt2->poll_wq,
658 cinergyt2->pending_fe_events > 0);
659 }
660 cinergyt2->pending_fe_events = 0;
661 return cinergyt2_ioctl(inode, file, FE_READ_STATUS,
662 (unsigned long) &e->status);
663 }
664
665 default:
666 ;
667 }
668
669 return -EINVAL;
670 }
671
672 static int cinergyt2_mmap(struct file *file, struct vm_area_struct *vma)
673 {
674 struct dvb_device *dvbdev = file->private_data;
675 struct cinergyt2 *cinergyt2 = dvbdev->priv;
676 int ret = 0;
677
678 lock_kernel();
679
680 if (vma->vm_flags & (VM_WRITE | VM_EXEC)) {
681 ret = -EPERM;
682 goto bailout;
683 }
684
685 if (vma->vm_end > vma->vm_start + STREAM_URB_COUNT * STREAM_BUF_SIZE) {
686 ret = -EINVAL;
687 goto bailout;
688 }
689
690 vma->vm_flags |= (VM_IO | VM_DONTCOPY);
691 vma->vm_file = file;
692
693 ret = remap_pfn_range(vma, vma->vm_start,
694 virt_to_phys(cinergyt2->streambuf) >> PAGE_SHIFT,
695 vma->vm_end - vma->vm_start,
696 vma->vm_page_prot) ? -EAGAIN : 0;
697 bailout:
698 unlock_kernel();
699 return ret;
700 }
701
702 static struct file_operations cinergyt2_fops = {
703 .owner = THIS_MODULE,
704 .ioctl = cinergyt2_ioctl,
705 .poll = cinergyt2_poll,
706 .open = cinergyt2_open,
707 .release = cinergyt2_release,
708 .mmap = cinergyt2_mmap
709 };
710
711 static struct dvb_device cinergyt2_fe_template = {
712 .users = ~0,
713 .writers = 1,
714 .readers = (~0)-1,
715 .fops = &cinergyt2_fops
716 };
717
718 #ifdef ENABLE_RC
719
720 static void cinergyt2_query_rc (void *data)
721 {
722 struct cinergyt2 *cinergyt2 = data;
723 char buf[1] = { CINERGYT2_EP1_GET_RC_EVENTS };
724 struct cinergyt2_rc_event rc_events[12];
725 int n, len, i;
726
727 if (cinergyt2->disconnect_pending || down_interruptible(&cinergyt2->sem))
728 return;
729
730 len = cinergyt2_command(cinergyt2, buf, sizeof(buf),
731 (char *) rc_events, sizeof(rc_events));
732 if (len < 0)
733 goto out;
734 if (len == 0) {
735 if (time_after(jiffies, cinergyt2->last_event_jiffies +
736 msecs_to_jiffies(150))) {
737 /* stop key repeat */
738 if (cinergyt2->rc_input_event != KEY_MAX) {
739 dprintk(1, "rc_input_event=%d Up\n", cinergyt2->rc_input_event);
740 input_report_key(cinergyt2->rc_input_dev,
741 cinergyt2->rc_input_event, 0);
742 cinergyt2->rc_input_event = KEY_MAX;
743 }
744 cinergyt2->rc_last_code = ~0;
745 }
746 goto out;
747 }
748 cinergyt2->last_event_jiffies = jiffies;
749
750 for (n = 0; n < (len / sizeof(rc_events[0])); n++) {
751 dprintk(1, "rc_events[%d].value = %x, type=%x\n",
752 n, le32_to_cpu(rc_events[n].value), rc_events[n].type);
753
754 if (rc_events[n].type == CINERGYT2_RC_EVENT_TYPE_NEC &&
755 rc_events[n].value == ~0) {
756 /* keyrepeat bit -> just repeat last rc_input_event */
757 } else {
758 cinergyt2->rc_input_event = KEY_MAX;
759 for (i = 0; i < ARRAY_SIZE(rc_keys); i += 3) {
760 if (rc_keys[i + 0] == rc_events[n].type &&
761 rc_keys[i + 1] == le32_to_cpu(rc_events[n].value)) {
762 cinergyt2->rc_input_event = rc_keys[i + 2];
763 break;
764 }
765 }
766 }
767
768 if (cinergyt2->rc_input_event != KEY_MAX) {
769 if (rc_events[n].value == cinergyt2->rc_last_code &&
770 cinergyt2->rc_last_code != ~0) {
771 /* emit a key-up so the double event is recognized */
772 dprintk(1, "rc_input_event=%d UP\n", cinergyt2->rc_input_event);
773 input_report_key(cinergyt2->rc_input_dev,
774 cinergyt2->rc_input_event, 0);
775 }
776 dprintk(1, "rc_input_event=%d\n", cinergyt2->rc_input_event);
777 input_report_key(cinergyt2->rc_input_dev,
778 cinergyt2->rc_input_event, 1);
779 cinergyt2->rc_last_code = rc_events[n].value;
780 }
781 }
782
783 out:
784 schedule_delayed_work(&cinergyt2->rc_query_work,
785 msecs_to_jiffies(RC_QUERY_INTERVAL));
786
787 up(&cinergyt2->sem);
788 }
789
790 static int cinergyt2_register_rc(struct cinergyt2 *cinergyt2)
791 {
792 struct input_dev *input_dev;
793 int i;
794
795 cinergyt2->rc_input_dev = input_dev = input_allocate_device();
796 if (!input_dev)
797 return -ENOMEM;
798
799 usb_make_path(cinergyt2->udev, cinergyt2->phys, sizeof(cinergyt2->phys));
800 strlcat(cinergyt2->phys, "/input0", sizeof(cinergyt2->phys));
801 cinergyt2->rc_input_event = KEY_MAX;
802 cinergyt2->rc_last_code = ~0;
803 INIT_WORK(&cinergyt2->rc_query_work, cinergyt2_query_rc, cinergyt2);
804
805 input_dev->name = DRIVER_NAME " remote control";
806 input_dev->phys = cinergyt2->phys;
807 input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
808 for (i = 0; i < ARRAY_SIZE(rc_keys); i += 3)
809 set_bit(rc_keys[i + 2], input_dev->keybit);
810 input_dev->keycodesize = 0;
811 input_dev->keycodemax = 0;
812
813 input_register_device(cinergyt2->rc_input_dev);
814 schedule_delayed_work(&cinergyt2->rc_query_work, HZ/2);
815
816 return 0;
817 }
818
819 static void cinergyt2_unregister_rc(struct cinergyt2 *cinergyt2)
820 {
821 cancel_delayed_work(&cinergyt2->rc_query_work);
822 input_unregister_device(cinergyt2->rc_input_dev);
823 }
824
825 static inline void cinergyt2_suspend_rc(struct cinergyt2 *cinergyt2)
826 {
827 cancel_delayed_work(&cinergyt2->rc_query_work);
828 }
829
830 static inline void cinergyt2_resume_rc(struct cinergyt2 *cinergyt2)
831 {
832 schedule_delayed_work(&cinergyt2->rc_query_work, HZ/2);
833 }
834
835 #else
836
837 static inline int cinergyt2_register_rc(struct cinergyt2 *cinergyt2) { return 0; }
838 static inline void cinergyt2_unregister_rc(struct cinergyt2 *cinergyt2) { }
839 static inline void cinergyt2_suspend_rc(struct cinergyt2 *cinergyt2) { }
840 static inline void cinergyt2_resume_rc(struct cinergyt2 *cinergyt2) { }
841
842 #endif /* ENABLE_RC */
843
844 static void cinergyt2_query (void *data)
845 {
846 struct cinergyt2 *cinergyt2 = (struct cinergyt2 *) data;
847 char cmd [] = { CINERGYT2_EP1_GET_TUNER_STATUS };
848 struct dvbt_get_status_msg *s = &cinergyt2->status;
849 uint8_t lock_bits;
850 uint32_t unc;
851
852 if (cinergyt2->disconnect_pending || down_interruptible(&cinergyt2->sem))
853 return;
854
855 unc = s->uncorrected_block_count;
856 lock_bits = s->lock_bits;
857
858 cinergyt2_command(cinergyt2, cmd, sizeof(cmd), (char *) s, sizeof(*s));
859
860 unc += le32_to_cpu(s->uncorrected_block_count);
861 s->uncorrected_block_count = unc;
862
863 if (lock_bits != s->lock_bits) {
864 wake_up_interruptible(&cinergyt2->poll_wq);
865 cinergyt2->pending_fe_events++;
866 }
867
868 schedule_delayed_work(&cinergyt2->query_work,
869 msecs_to_jiffies(QUERY_INTERVAL));
870
871 up(&cinergyt2->sem);
872 }
873
874 static int cinergyt2_probe (struct usb_interface *intf,
875 const struct usb_device_id *id)
876 {
877 struct cinergyt2 *cinergyt2;
878 int err;
879
880 if (!(cinergyt2 = kmalloc (sizeof(struct cinergyt2), GFP_KERNEL))) {
881 dprintk(1, "out of memory?!?\n");
882 return -ENOMEM;
883 }
884
885 memset (cinergyt2, 0, sizeof (struct cinergyt2));
886 usb_set_intfdata (intf, (void *) cinergyt2);
887
888 init_MUTEX(&cinergyt2->sem);
889 init_waitqueue_head (&cinergyt2->poll_wq);
890 INIT_WORK(&cinergyt2->query_work, cinergyt2_query, cinergyt2);
891
892 cinergyt2->udev = interface_to_usbdev(intf);
893 cinergyt2->param.cmd = CINERGYT2_EP1_SET_TUNER_PARAMETERS;
894
895 if (cinergyt2_alloc_stream_urbs (cinergyt2) < 0) {
896 dprintk(1, "unable to allocate stream urbs\n");
897 kfree(cinergyt2);
898 return -ENOMEM;
899 }
900
901 dvb_register_adapter(&cinergyt2->adapter, DRIVER_NAME, THIS_MODULE);
902
903 cinergyt2->demux.priv = cinergyt2;
904 cinergyt2->demux.filternum = 256;
905 cinergyt2->demux.feednum = 256;
906 cinergyt2->demux.start_feed = cinergyt2_start_feed;
907 cinergyt2->demux.stop_feed = cinergyt2_stop_feed;
908 cinergyt2->demux.dmx.capabilities = DMX_TS_FILTERING |
909 DMX_SECTION_FILTERING |
910 DMX_MEMORY_BASED_FILTERING;
911
912 if ((err = dvb_dmx_init(&cinergyt2->demux)) < 0) {
913 dprintk(1, "dvb_dmx_init() failed (err = %d)\n", err);
914 goto bailout;
915 }
916
917 cinergyt2->dmxdev.filternum = cinergyt2->demux.filternum;
918 cinergyt2->dmxdev.demux = &cinergyt2->demux.dmx;
919 cinergyt2->dmxdev.capabilities = 0;
920
921 if ((err = dvb_dmxdev_init(&cinergyt2->dmxdev, &cinergyt2->adapter)) < 0) {
922 dprintk(1, "dvb_dmxdev_init() failed (err = %d)\n", err);
923 goto bailout;
924 }
925
926 if (dvb_net_init(&cinergyt2->adapter, &cinergyt2->dvbnet, &cinergyt2->demux.dmx))
927 dprintk(1, "dvb_net_init() failed!\n");
928
929 dvb_register_device(&cinergyt2->adapter, &cinergyt2->fedev,
930 &cinergyt2_fe_template, cinergyt2,
931 DVB_DEVICE_FRONTEND);
932
933 err = cinergyt2_register_rc(cinergyt2);
934 if (err)
935 goto bailout;
936
937 return 0;
938
939 bailout:
940 dvb_dmxdev_release(&cinergyt2->dmxdev);
941 dvb_dmx_release(&cinergyt2->demux);
942 dvb_unregister_adapter(&cinergyt2->adapter);
943 cinergyt2_free_stream_urbs(cinergyt2);
944 kfree(cinergyt2);
945 return -ENOMEM;
946 }
947
948 static void cinergyt2_disconnect (struct usb_interface *intf)
949 {
950 struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
951
952 flush_scheduled_work();
953
954 cinergyt2_unregister_rc(cinergyt2);
955
956 cancel_delayed_work(&cinergyt2->query_work);
957 wake_up_interruptible(&cinergyt2->poll_wq);
958
959 cinergyt2->demux.dmx.close(&cinergyt2->demux.dmx);
960 cinergyt2->disconnect_pending = 1;
961
962 if (!atomic_read(&cinergyt2->inuse))
963 cinergyt2_unregister(cinergyt2);
964 }
965
966 static int cinergyt2_suspend (struct usb_interface *intf, pm_message_t state)
967 {
968 struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
969
970 if (cinergyt2->disconnect_pending || down_interruptible(&cinergyt2->sem))
971 return -ERESTARTSYS;
972
973 if (state.event > PM_EVENT_ON) {
974 struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
975
976 cinergyt2_suspend_rc(cinergyt2);
977 cancel_delayed_work(&cinergyt2->query_work);
978 if (cinergyt2->streaming)
979 cinergyt2_stop_stream_xfer(cinergyt2);
980 flush_scheduled_work();
981 cinergyt2_sleep(cinergyt2, 1);
982 }
983
984 up(&cinergyt2->sem);
985 return 0;
986 }
987
988 static int cinergyt2_resume (struct usb_interface *intf)
989 {
990 struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
991 struct dvbt_set_parameters_msg *param = &cinergyt2->param;
992
993 if (cinergyt2->disconnect_pending || down_interruptible(&cinergyt2->sem))
994 return -ERESTARTSYS;
995
996 if (!cinergyt2->sleeping) {
997 cinergyt2_sleep(cinergyt2, 0);
998 cinergyt2_command(cinergyt2, (char *) param, sizeof(*param), NULL, 0);
999 if (cinergyt2->streaming)
1000 cinergyt2_start_stream_xfer(cinergyt2);
1001 schedule_delayed_work(&cinergyt2->query_work, HZ/2);
1002 }
1003
1004 cinergyt2_resume_rc(cinergyt2);
1005
1006 up(&cinergyt2->sem);
1007 return 0;
1008 }
1009
1010 static const struct usb_device_id cinergyt2_table [] __devinitdata = {
1011 { USB_DEVICE(0x0ccd, 0x0038) },
1012 { 0 }
1013 };
1014
1015 MODULE_DEVICE_TABLE(usb, cinergyt2_table);
1016
1017 static struct usb_driver cinergyt2_driver = {
1018 .name = "cinergyT2",
1019 .probe = cinergyt2_probe,
1020 .disconnect = cinergyt2_disconnect,
1021 .suspend = cinergyt2_suspend,
1022 .resume = cinergyt2_resume,
1023 .id_table = cinergyt2_table
1024 };
1025
1026 static int __init cinergyt2_init (void)
1027 {
1028 int err;
1029
1030 if ((err = usb_register(&cinergyt2_driver)) < 0)
1031 dprintk(1, "usb_register() failed! (err %i)\n", err);
1032
1033 return err;
1034 }
1035
1036 static void __exit cinergyt2_exit (void)
1037 {
1038 usb_deregister(&cinergyt2_driver);
1039 }
1040
1041 module_init (cinergyt2_init);
1042 module_exit (cinergyt2_exit);
1043
1044 MODULE_LICENSE("GPL");
1045 MODULE_AUTHOR("Holger Waechtler, Daniel Mack");
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