Merge branch 'origin'
[linux-2.6] / 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_unregister_device(cinergyt2->fedev);
510         dvb_unregister_adapter(&cinergyt2->adapter);
511
512         cinergyt2_free_stream_urbs(cinergyt2);
513         kfree(cinergyt2);
514 }
515
516 static int cinergyt2_release (struct inode *inode, struct file *file)
517 {
518         struct dvb_device *dvbdev = file->private_data;
519         struct cinergyt2 *cinergyt2 = dvbdev->priv;
520
521         if (mutex_lock_interruptible(&cinergyt2->sem))
522                 return -ERESTARTSYS;
523
524         if (!cinergyt2->disconnect_pending && (file->f_flags & O_ACCMODE) != O_RDONLY) {
525                 cancel_delayed_work(&cinergyt2->query_work);
526                 flush_scheduled_work();
527                 cinergyt2_sleep(cinergyt2, 1);
528         }
529
530         mutex_unlock(&cinergyt2->sem);
531
532         if (atomic_dec_and_test(&cinergyt2->inuse) && cinergyt2->disconnect_pending) {
533                 warn("delayed unregister in release");
534                 cinergyt2_unregister(cinergyt2);
535         }
536
537         return dvb_generic_release(inode, file);
538 }
539
540 static unsigned int cinergyt2_poll (struct file *file, struct poll_table_struct *wait)
541 {
542         struct dvb_device *dvbdev = file->private_data;
543         struct cinergyt2 *cinergyt2 = dvbdev->priv;
544
545         if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
546                 return -ERESTARTSYS;
547
548         poll_wait(file, &cinergyt2->poll_wq, wait);
549
550         mutex_unlock(&cinergyt2->sem);
551
552         return (POLLIN | POLLRDNORM | POLLPRI);
553 }
554
555
556 static int cinergyt2_ioctl (struct inode *inode, struct file *file,
557                      unsigned cmd, unsigned long arg)
558 {
559         struct dvb_device *dvbdev = file->private_data;
560         struct cinergyt2 *cinergyt2 = dvbdev->priv;
561         struct dvbt_get_status_msg *stat = &cinergyt2->status;
562         fe_status_t status = 0;
563
564         switch (cmd) {
565         case FE_GET_INFO:
566                 return copy_to_user((void __user*) arg, &cinergyt2_fe_info,
567                                     sizeof(struct dvb_frontend_info));
568
569         case FE_READ_STATUS:
570                 if (0xffff - le16_to_cpu(stat->gain) > 30)
571                         status |= FE_HAS_SIGNAL;
572                 if (stat->lock_bits & (1 << 6))
573                         status |= FE_HAS_LOCK;
574                 if (stat->lock_bits & (1 << 5))
575                         status |= FE_HAS_SYNC;
576                 if (stat->lock_bits & (1 << 4))
577                         status |= FE_HAS_CARRIER;
578                 if (stat->lock_bits & (1 << 1))
579                         status |= FE_HAS_VITERBI;
580
581                 return copy_to_user((void  __user*) arg, &status, sizeof(status));
582
583         case FE_READ_BER:
584                 return put_user(le32_to_cpu(stat->viterbi_error_rate),
585                                 (__u32 __user *) arg);
586
587         case FE_READ_SIGNAL_STRENGTH:
588                 return put_user(0xffff - le16_to_cpu(stat->gain),
589                                 (__u16 __user *) arg);
590
591         case FE_READ_SNR:
592                 return put_user((stat->snr << 8) | stat->snr,
593                                 (__u16 __user *) arg);
594
595         case FE_READ_UNCORRECTED_BLOCKS:
596         {
597                 uint32_t unc_count;
598
599                 unc_count = stat->uncorrected_block_count;
600                 stat->uncorrected_block_count = 0;
601
602                 /* UNC are already converted to host byte order... */
603                 return put_user(unc_count,(__u32 __user *) arg);
604         }
605         case FE_SET_FRONTEND:
606         {
607                 struct dvbt_set_parameters_msg *param = &cinergyt2->param;
608                 struct dvb_frontend_parameters p;
609                 int err;
610
611                 if ((file->f_flags & O_ACCMODE) == O_RDONLY)
612                         return -EPERM;
613
614                 if (copy_from_user(&p, (void  __user*) arg, sizeof(p)))
615                         return -EFAULT;
616
617                 if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
618                         return -ERESTARTSYS;
619
620                 param->cmd = CINERGYT2_EP1_SET_TUNER_PARAMETERS;
621                 param->tps = cpu_to_le16(compute_tps(&p));
622                 param->freq = cpu_to_le32(p.frequency / 1000);
623                 param->bandwidth = 8 - p.u.ofdm.bandwidth - BANDWIDTH_8_MHZ;
624
625                 stat->lock_bits = 0;
626                 cinergyt2->pending_fe_events++;
627                 wake_up_interruptible(&cinergyt2->poll_wq);
628
629                 err = cinergyt2_command(cinergyt2,
630                                         (char *) param, sizeof(*param),
631                                         NULL, 0);
632
633                 mutex_unlock(&cinergyt2->sem);
634
635                 return (err < 0) ? err : 0;
636         }
637
638         case FE_GET_FRONTEND:
639                 /**
640                  *  trivial to implement (see struct dvbt_get_status_msg).
641                  *  equivalent to FE_READ ioctls, but needs
642                  *  TPS -> linux-dvb parameter set conversion. Feel free
643                  *  to implement this and send us a patch if you need this
644                  *  functionality.
645                  */
646                 break;
647
648         case FE_GET_EVENT:
649         {
650                 /**
651                  *  for now we only fill the status field. the parameters
652                  *  are trivial to fill as soon FE_GET_FRONTEND is done.
653                  */
654                 struct dvb_frontend_event __user *e = (void __user *) arg;
655                 if (cinergyt2->pending_fe_events == 0) {
656                         if (file->f_flags & O_NONBLOCK)
657                                 return -EWOULDBLOCK;
658                         wait_event_interruptible(cinergyt2->poll_wq,
659                                                  cinergyt2->pending_fe_events > 0);
660                 }
661                 cinergyt2->pending_fe_events = 0;
662                 return cinergyt2_ioctl(inode, file, FE_READ_STATUS,
663                                         (unsigned long) &e->status);
664         }
665
666         default:
667                 ;
668         }
669
670         return -EINVAL;
671 }
672
673 static int cinergyt2_mmap(struct file *file, struct vm_area_struct *vma)
674 {
675         struct dvb_device *dvbdev = file->private_data;
676         struct cinergyt2 *cinergyt2 = dvbdev->priv;
677         int ret = 0;
678
679         lock_kernel();
680
681         if (vma->vm_flags & (VM_WRITE | VM_EXEC)) {
682                 ret = -EPERM;
683                 goto bailout;
684         }
685
686         if (vma->vm_end > vma->vm_start + STREAM_URB_COUNT * STREAM_BUF_SIZE) {
687                 ret = -EINVAL;
688                 goto bailout;
689         }
690
691         vma->vm_flags |= (VM_IO | VM_DONTCOPY);
692         vma->vm_file = file;
693
694         ret = remap_pfn_range(vma, vma->vm_start,
695                               virt_to_phys(cinergyt2->streambuf) >> PAGE_SHIFT,
696                               vma->vm_end - vma->vm_start,
697                               vma->vm_page_prot) ? -EAGAIN : 0;
698 bailout:
699         unlock_kernel();
700         return ret;
701 }
702
703 static struct file_operations cinergyt2_fops = {
704         .owner          = THIS_MODULE,
705         .ioctl          = cinergyt2_ioctl,
706         .poll           = cinergyt2_poll,
707         .open           = cinergyt2_open,
708         .release        = cinergyt2_release,
709         .mmap           = cinergyt2_mmap
710 };
711
712 static struct dvb_device cinergyt2_fe_template = {
713         .users = ~0,
714         .writers = 1,
715         .readers = (~0)-1,
716         .fops = &cinergyt2_fops
717 };
718
719 #ifdef ENABLE_RC
720
721 static void cinergyt2_query_rc (void *data)
722 {
723         struct cinergyt2 *cinergyt2 = data;
724         char buf[1] = { CINERGYT2_EP1_GET_RC_EVENTS };
725         struct cinergyt2_rc_event rc_events[12];
726         int n, len, i;
727
728         if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
729                 return;
730
731         len = cinergyt2_command(cinergyt2, buf, sizeof(buf),
732                                 (char *) rc_events, sizeof(rc_events));
733         if (len < 0)
734                 goto out;
735         if (len == 0) {
736                 if (time_after(jiffies, cinergyt2->last_event_jiffies +
737                                msecs_to_jiffies(150))) {
738                         /* stop key repeat */
739                         if (cinergyt2->rc_input_event != KEY_MAX) {
740                                 dprintk(1, "rc_input_event=%d Up\n", cinergyt2->rc_input_event);
741                                 input_report_key(cinergyt2->rc_input_dev,
742                                                  cinergyt2->rc_input_event, 0);
743                                 cinergyt2->rc_input_event = KEY_MAX;
744                         }
745                         cinergyt2->rc_last_code = ~0;
746                 }
747                 goto out;
748         }
749         cinergyt2->last_event_jiffies = jiffies;
750
751         for (n = 0; n < (len / sizeof(rc_events[0])); n++) {
752                 dprintk(1, "rc_events[%d].value = %x, type=%x\n",
753                         n, le32_to_cpu(rc_events[n].value), rc_events[n].type);
754
755                 if (rc_events[n].type == CINERGYT2_RC_EVENT_TYPE_NEC &&
756                     rc_events[n].value == ~0) {
757                         /* keyrepeat bit -> just repeat last rc_input_event */
758                 } else {
759                         cinergyt2->rc_input_event = KEY_MAX;
760                         for (i = 0; i < ARRAY_SIZE(rc_keys); i += 3) {
761                                 if (rc_keys[i + 0] == rc_events[n].type &&
762                                     rc_keys[i + 1] == le32_to_cpu(rc_events[n].value)) {
763                                         cinergyt2->rc_input_event = rc_keys[i + 2];
764                                         break;
765                                 }
766                         }
767                 }
768
769                 if (cinergyt2->rc_input_event != KEY_MAX) {
770                         if (rc_events[n].value == cinergyt2->rc_last_code &&
771                             cinergyt2->rc_last_code != ~0) {
772                                 /* emit a key-up so the double event is recognized */
773                                 dprintk(1, "rc_input_event=%d UP\n", cinergyt2->rc_input_event);
774                                 input_report_key(cinergyt2->rc_input_dev,
775                                                  cinergyt2->rc_input_event, 0);
776                         }
777                         dprintk(1, "rc_input_event=%d\n", cinergyt2->rc_input_event);
778                         input_report_key(cinergyt2->rc_input_dev,
779                                          cinergyt2->rc_input_event, 1);
780                         cinergyt2->rc_last_code = rc_events[n].value;
781                 }
782         }
783
784 out:
785         schedule_delayed_work(&cinergyt2->rc_query_work,
786                               msecs_to_jiffies(RC_QUERY_INTERVAL));
787
788         mutex_unlock(&cinergyt2->sem);
789 }
790
791 static int cinergyt2_register_rc(struct cinergyt2 *cinergyt2)
792 {
793         struct input_dev *input_dev;
794         int i;
795
796         cinergyt2->rc_input_dev = input_dev = input_allocate_device();
797         if (!input_dev)
798                 return -ENOMEM;
799
800         usb_make_path(cinergyt2->udev, cinergyt2->phys, sizeof(cinergyt2->phys));
801         strlcat(cinergyt2->phys, "/input0", sizeof(cinergyt2->phys));
802         cinergyt2->rc_input_event = KEY_MAX;
803         cinergyt2->rc_last_code = ~0;
804         INIT_WORK(&cinergyt2->rc_query_work, cinergyt2_query_rc, cinergyt2);
805
806         input_dev->name = DRIVER_NAME " remote control";
807         input_dev->phys = cinergyt2->phys;
808         input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
809         for (i = 0; i < ARRAY_SIZE(rc_keys); i += 3)
810                 set_bit(rc_keys[i + 2], input_dev->keybit);
811         input_dev->keycodesize = 0;
812         input_dev->keycodemax = 0;
813
814         input_register_device(cinergyt2->rc_input_dev);
815         schedule_delayed_work(&cinergyt2->rc_query_work, HZ/2);
816
817         return 0;
818 }
819
820 static void cinergyt2_unregister_rc(struct cinergyt2 *cinergyt2)
821 {
822         cancel_delayed_work(&cinergyt2->rc_query_work);
823         input_unregister_device(cinergyt2->rc_input_dev);
824 }
825
826 static inline void cinergyt2_suspend_rc(struct cinergyt2 *cinergyt2)
827 {
828         cancel_delayed_work(&cinergyt2->rc_query_work);
829 }
830
831 static inline void cinergyt2_resume_rc(struct cinergyt2 *cinergyt2)
832 {
833         schedule_delayed_work(&cinergyt2->rc_query_work, HZ/2);
834 }
835
836 #else
837
838 static inline int cinergyt2_register_rc(struct cinergyt2 *cinergyt2) { return 0; }
839 static inline void cinergyt2_unregister_rc(struct cinergyt2 *cinergyt2) { }
840 static inline void cinergyt2_suspend_rc(struct cinergyt2 *cinergyt2) { }
841 static inline void cinergyt2_resume_rc(struct cinergyt2 *cinergyt2) { }
842
843 #endif /* ENABLE_RC */
844
845 static void cinergyt2_query (void *data)
846 {
847         struct cinergyt2 *cinergyt2 = (struct cinergyt2 *) data;
848         char cmd [] = { CINERGYT2_EP1_GET_TUNER_STATUS };
849         struct dvbt_get_status_msg *s = &cinergyt2->status;
850         uint8_t lock_bits;
851         uint32_t unc;
852
853         if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
854                 return;
855
856         unc = s->uncorrected_block_count;
857         lock_bits = s->lock_bits;
858
859         cinergyt2_command(cinergyt2, cmd, sizeof(cmd), (char *) s, sizeof(*s));
860
861         unc += le32_to_cpu(s->uncorrected_block_count);
862         s->uncorrected_block_count = unc;
863
864         if (lock_bits != s->lock_bits) {
865                 wake_up_interruptible(&cinergyt2->poll_wq);
866                 cinergyt2->pending_fe_events++;
867         }
868
869         schedule_delayed_work(&cinergyt2->query_work,
870                               msecs_to_jiffies(QUERY_INTERVAL));
871
872         mutex_unlock(&cinergyt2->sem);
873 }
874
875 static int cinergyt2_probe (struct usb_interface *intf,
876                   const struct usb_device_id *id)
877 {
878         struct cinergyt2 *cinergyt2;
879         int err;
880
881         if (!(cinergyt2 = kmalloc (sizeof(struct cinergyt2), GFP_KERNEL))) {
882                 dprintk(1, "out of memory?!?\n");
883                 return -ENOMEM;
884         }
885
886         memset (cinergyt2, 0, sizeof (struct cinergyt2));
887         usb_set_intfdata (intf, (void *) cinergyt2);
888
889         mutex_init(&cinergyt2->sem);
890         init_waitqueue_head (&cinergyt2->poll_wq);
891         INIT_WORK(&cinergyt2->query_work, cinergyt2_query, cinergyt2);
892
893         cinergyt2->udev = interface_to_usbdev(intf);
894         cinergyt2->param.cmd = CINERGYT2_EP1_SET_TUNER_PARAMETERS;
895
896         if (cinergyt2_alloc_stream_urbs (cinergyt2) < 0) {
897                 dprintk(1, "unable to allocate stream urbs\n");
898                 kfree(cinergyt2);
899                 return -ENOMEM;
900         }
901
902         dvb_register_adapter(&cinergyt2->adapter, DRIVER_NAME, THIS_MODULE);
903
904         cinergyt2->demux.priv = cinergyt2;
905         cinergyt2->demux.filternum = 256;
906         cinergyt2->demux.feednum = 256;
907         cinergyt2->demux.start_feed = cinergyt2_start_feed;
908         cinergyt2->demux.stop_feed = cinergyt2_stop_feed;
909         cinergyt2->demux.dmx.capabilities = DMX_TS_FILTERING |
910                                             DMX_SECTION_FILTERING |
911                                             DMX_MEMORY_BASED_FILTERING;
912
913         if ((err = dvb_dmx_init(&cinergyt2->demux)) < 0) {
914                 dprintk(1, "dvb_dmx_init() failed (err = %d)\n", err);
915                 goto bailout;
916         }
917
918         cinergyt2->dmxdev.filternum = cinergyt2->demux.filternum;
919         cinergyt2->dmxdev.demux = &cinergyt2->demux.dmx;
920         cinergyt2->dmxdev.capabilities = 0;
921
922         if ((err = dvb_dmxdev_init(&cinergyt2->dmxdev, &cinergyt2->adapter)) < 0) {
923                 dprintk(1, "dvb_dmxdev_init() failed (err = %d)\n", err);
924                 goto bailout;
925         }
926
927         if (dvb_net_init(&cinergyt2->adapter, &cinergyt2->dvbnet, &cinergyt2->demux.dmx))
928                 dprintk(1, "dvb_net_init() failed!\n");
929
930         dvb_register_device(&cinergyt2->adapter, &cinergyt2->fedev,
931                             &cinergyt2_fe_template, cinergyt2,
932                             DVB_DEVICE_FRONTEND);
933
934         err = cinergyt2_register_rc(cinergyt2);
935         if (err)
936                 goto bailout;
937
938         return 0;
939
940 bailout:
941         dvb_dmxdev_release(&cinergyt2->dmxdev);
942         dvb_dmx_release(&cinergyt2->demux);
943         dvb_unregister_adapter(&cinergyt2->adapter);
944         cinergyt2_free_stream_urbs(cinergyt2);
945         kfree(cinergyt2);
946         return -ENOMEM;
947 }
948
949 static void cinergyt2_disconnect (struct usb_interface *intf)
950 {
951         struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
952
953         flush_scheduled_work();
954
955         cinergyt2_unregister_rc(cinergyt2);
956
957         cancel_delayed_work(&cinergyt2->query_work);
958         wake_up_interruptible(&cinergyt2->poll_wq);
959
960         cinergyt2->demux.dmx.close(&cinergyt2->demux.dmx);
961         cinergyt2->disconnect_pending = 1;
962
963         if (!atomic_read(&cinergyt2->inuse))
964                 cinergyt2_unregister(cinergyt2);
965 }
966
967 static int cinergyt2_suspend (struct usb_interface *intf, pm_message_t state)
968 {
969         struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
970
971         if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
972                 return -ERESTARTSYS;
973
974         if (state.event > PM_EVENT_ON) {
975                 struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
976
977                 cinergyt2_suspend_rc(cinergyt2);
978                 cancel_delayed_work(&cinergyt2->query_work);
979                 if (cinergyt2->streaming)
980                         cinergyt2_stop_stream_xfer(cinergyt2);
981                 flush_scheduled_work();
982                 cinergyt2_sleep(cinergyt2, 1);
983         }
984
985         mutex_unlock(&cinergyt2->sem);
986         return 0;
987 }
988
989 static int cinergyt2_resume (struct usb_interface *intf)
990 {
991         struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
992         struct dvbt_set_parameters_msg *param = &cinergyt2->param;
993
994         if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
995                 return -ERESTARTSYS;
996
997         if (!cinergyt2->sleeping) {
998                 cinergyt2_sleep(cinergyt2, 0);
999                 cinergyt2_command(cinergyt2, (char *) param, sizeof(*param), NULL, 0);
1000                 if (cinergyt2->streaming)
1001                         cinergyt2_start_stream_xfer(cinergyt2);
1002                 schedule_delayed_work(&cinergyt2->query_work, HZ/2);
1003         }
1004
1005         cinergyt2_resume_rc(cinergyt2);
1006
1007         mutex_unlock(&cinergyt2->sem);
1008         return 0;
1009 }
1010
1011 static const struct usb_device_id cinergyt2_table [] __devinitdata = {
1012         { USB_DEVICE(0x0ccd, 0x0038) },
1013         { 0 }
1014 };
1015
1016 MODULE_DEVICE_TABLE(usb, cinergyt2_table);
1017
1018 static struct usb_driver cinergyt2_driver = {
1019         .name   = "cinergyT2",
1020         .probe  = cinergyt2_probe,
1021         .disconnect     = cinergyt2_disconnect,
1022         .suspend        = cinergyt2_suspend,
1023         .resume         = cinergyt2_resume,
1024         .id_table       = cinergyt2_table
1025 };
1026
1027 static int __init cinergyt2_init (void)
1028 {
1029         int err;
1030
1031         if ((err = usb_register(&cinergyt2_driver)) < 0)
1032                 dprintk(1, "usb_register() failed! (err %i)\n", err);
1033
1034         return err;
1035 }
1036
1037 static void __exit cinergyt2_exit (void)
1038 {
1039         usb_deregister(&cinergyt2_driver);
1040 }
1041
1042 module_init (cinergyt2_init);
1043 module_exit (cinergyt2_exit);
1044
1045 MODULE_LICENSE("GPL");
1046 MODULE_AUTHOR("Holger Waechtler, Daniel Mack");