336fc284fa523138d2bfd923146039ce8855db6a
[linux-2.6.git] / drivers / media / dvb / cinergyT2 / cinergyT2.c
1 /*
2  * TerraTec Cinergy T²/qanu USB2 DVB-T adapter.
3  *
4  * Copyright (C) 2004 Daniel Mack <daniel@qanu.de> and
5  *                  Holger Waechtler <holger@qanu.de>
6  *
7  *  Protocol Spec published on http://qanu.de/specs/terratec_cinergyT2.pdf
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * This program is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17  * GNU General Public License for more details.
18  *
19  * You should have received a copy of the GNU General Public License
20  * along with this program; if not, write to the Free Software
21  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22  *
23  */
24
25 #include <linux/config.h>
26 #include <linux/init.h>
27 #include <linux/module.h>
28 #include <linux/slab.h>
29 #include <linux/usb.h>
30 #include <linux/pci.h>
31 #include <linux/input.h>
32 #include <linux/dvb/frontend.h>
33
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(): ", __stringify(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
135         void *streambuf;
136         dma_addr_t streambuf_dmahandle;
137         struct urb *stream_urb [STREAM_URB_COUNT];
138
139 #ifdef ENABLE_RC
140         struct input_dev *rc_input_dev;
141         char phys[64];
142         struct work_struct rc_query_work;
143         int rc_input_event;
144         u32 rc_last_code;
145         unsigned long last_event_jiffies;
146 #endif
147 };
148
149 enum {
150         CINERGYT2_RC_EVENT_TYPE_NONE = 0x00,
151         CINERGYT2_RC_EVENT_TYPE_NEC  = 0x01,
152         CINERGYT2_RC_EVENT_TYPE_RC5  = 0x02
153 };
154
155 struct cinergyt2_rc_event {
156         char type;
157         uint32_t value;
158 } __attribute__((packed));
159
160 static const uint32_t rc_keys[] = {
161         CINERGYT2_RC_EVENT_TYPE_NEC,    0xfe01eb04,     KEY_POWER,
162         CINERGYT2_RC_EVENT_TYPE_NEC,    0xfd02eb04,     KEY_1,
163         CINERGYT2_RC_EVENT_TYPE_NEC,    0xfc03eb04,     KEY_2,
164         CINERGYT2_RC_EVENT_TYPE_NEC,    0xfb04eb04,     KEY_3,
165         CINERGYT2_RC_EVENT_TYPE_NEC,    0xfa05eb04,     KEY_4,
166         CINERGYT2_RC_EVENT_TYPE_NEC,    0xf906eb04,     KEY_5,
167         CINERGYT2_RC_EVENT_TYPE_NEC,    0xf807eb04,     KEY_6,
168         CINERGYT2_RC_EVENT_TYPE_NEC,    0xf708eb04,     KEY_7,
169         CINERGYT2_RC_EVENT_TYPE_NEC,    0xf609eb04,     KEY_8,
170         CINERGYT2_RC_EVENT_TYPE_NEC,    0xf50aeb04,     KEY_9,
171         CINERGYT2_RC_EVENT_TYPE_NEC,    0xf30ceb04,     KEY_0,
172         CINERGYT2_RC_EVENT_TYPE_NEC,    0xf40beb04,     KEY_VIDEO,
173         CINERGYT2_RC_EVENT_TYPE_NEC,    0xf20deb04,     KEY_REFRESH,
174         CINERGYT2_RC_EVENT_TYPE_NEC,    0xf10eeb04,     KEY_SELECT,
175         CINERGYT2_RC_EVENT_TYPE_NEC,    0xf00feb04,     KEY_EPG,
176         CINERGYT2_RC_EVENT_TYPE_NEC,    0xef10eb04,     KEY_UP,
177         CINERGYT2_RC_EVENT_TYPE_NEC,    0xeb14eb04,     KEY_DOWN,
178         CINERGYT2_RC_EVENT_TYPE_NEC,    0xee11eb04,     KEY_LEFT,
179         CINERGYT2_RC_EVENT_TYPE_NEC,    0xec13eb04,     KEY_RIGHT,
180         CINERGYT2_RC_EVENT_TYPE_NEC,    0xed12eb04,     KEY_OK,
181         CINERGYT2_RC_EVENT_TYPE_NEC,    0xea15eb04,     KEY_TEXT,
182         CINERGYT2_RC_EVENT_TYPE_NEC,    0xe916eb04,     KEY_INFO,
183         CINERGYT2_RC_EVENT_TYPE_NEC,    0xe817eb04,     KEY_RED,
184         CINERGYT2_RC_EVENT_TYPE_NEC,    0xe718eb04,     KEY_GREEN,
185         CINERGYT2_RC_EVENT_TYPE_NEC,    0xe619eb04,     KEY_YELLOW,
186         CINERGYT2_RC_EVENT_TYPE_NEC,    0xe51aeb04,     KEY_BLUE,
187         CINERGYT2_RC_EVENT_TYPE_NEC,    0xe31ceb04,     KEY_VOLUMEUP,
188         CINERGYT2_RC_EVENT_TYPE_NEC,    0xe11eeb04,     KEY_VOLUMEDOWN,
189         CINERGYT2_RC_EVENT_TYPE_NEC,    0xe21deb04,     KEY_MUTE,
190         CINERGYT2_RC_EVENT_TYPE_NEC,    0xe41beb04,     KEY_CHANNELUP,
191         CINERGYT2_RC_EVENT_TYPE_NEC,    0xe01feb04,     KEY_CHANNELDOWN,
192         CINERGYT2_RC_EVENT_TYPE_NEC,    0xbf40eb04,     KEY_PAUSE,
193         CINERGYT2_RC_EVENT_TYPE_NEC,    0xb34ceb04,     KEY_PLAY,
194         CINERGYT2_RC_EVENT_TYPE_NEC,    0xa758eb04,     KEY_RECORD,
195         CINERGYT2_RC_EVENT_TYPE_NEC,    0xab54eb04,     KEY_PREVIOUS,
196         CINERGYT2_RC_EVENT_TYPE_NEC,    0xb748eb04,     KEY_STOP,
197         CINERGYT2_RC_EVENT_TYPE_NEC,    0xa35ceb04,     KEY_NEXT
198 };
199
200 static int cinergyt2_command (struct cinergyt2 *cinergyt2,
201                               char *send_buf, int send_buf_len,
202                               char *recv_buf, int recv_buf_len)
203 {
204         int actual_len;
205         char dummy;
206         int ret;
207
208         ret = usb_bulk_msg(cinergyt2->udev, usb_sndbulkpipe(cinergyt2->udev, 1),
209                            send_buf, send_buf_len, &actual_len, 1000);
210
211         if (ret)
212                 dprintk(1, "usb_bulk_msg (send) failed, err %i\n", ret);
213
214         if (!recv_buf)
215                 recv_buf = &dummy;
216
217         ret = usb_bulk_msg(cinergyt2->udev, usb_rcvbulkpipe(cinergyt2->udev, 1),
218                            recv_buf, recv_buf_len, &actual_len, 1000);
219
220         if (ret)
221                 dprintk(1, "usb_bulk_msg (read) failed, err %i\n", ret);
222
223         return ret ? ret : actual_len;
224 }
225
226 static void cinergyt2_control_stream_transfer (struct cinergyt2 *cinergyt2, int enable)
227 {
228         char buf [] = { CINERGYT2_EP1_CONTROL_STREAM_TRANSFER, enable ? 1 : 0 };
229         cinergyt2_command(cinergyt2, buf, sizeof(buf), NULL, 0);
230 }
231
232 static void cinergyt2_sleep (struct cinergyt2 *cinergyt2, int sleep)
233 {
234         char buf [] = { CINERGYT2_EP1_SLEEP_MODE, sleep ? 1 : 0 };
235         cinergyt2_command(cinergyt2, buf, sizeof(buf), NULL, 0);
236         cinergyt2->sleeping = sleep;
237 }
238
239 static void cinergyt2_stream_irq (struct urb *urb, struct pt_regs *regs);
240
241 static int cinergyt2_submit_stream_urb (struct cinergyt2 *cinergyt2, struct urb *urb)
242 {
243         int err;
244
245         usb_fill_bulk_urb(urb,
246                           cinergyt2->udev,
247                           usb_rcvbulkpipe(cinergyt2->udev, 0x2),
248                           urb->transfer_buffer,
249                           STREAM_BUF_SIZE,
250                           cinergyt2_stream_irq,
251                           cinergyt2);
252
253         if ((err = usb_submit_urb(urb, GFP_ATOMIC)))
254                 dprintk(1, "urb submission failed (err = %i)!\n", err);
255
256         return err;
257 }
258
259 static void cinergyt2_stream_irq (struct urb *urb, struct pt_regs *regs)
260 {
261         struct cinergyt2 *cinergyt2 = urb->context;
262
263         if (urb->actual_length > 0)
264                 dvb_dmx_swfilter(&cinergyt2->demux,
265                                  urb->transfer_buffer, urb->actual_length);
266
267         if (cinergyt2->streaming)
268                 cinergyt2_submit_stream_urb(cinergyt2, urb);
269 }
270
271 static void cinergyt2_free_stream_urbs (struct cinergyt2 *cinergyt2)
272 {
273         int i;
274
275         for (i=0; i<STREAM_URB_COUNT; i++)
276                 if (cinergyt2->stream_urb[i])
277                         usb_free_urb(cinergyt2->stream_urb[i]);
278
279         usb_buffer_free(cinergyt2->udev, STREAM_URB_COUNT*STREAM_BUF_SIZE,
280                             cinergyt2->streambuf, cinergyt2->streambuf_dmahandle);
281 }
282
283 static int cinergyt2_alloc_stream_urbs (struct cinergyt2 *cinergyt2)
284 {
285         int i;
286
287         cinergyt2->streambuf = usb_buffer_alloc(cinergyt2->udev, STREAM_URB_COUNT*STREAM_BUF_SIZE,
288                                               SLAB_KERNEL, &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
687 static void cinergyt2_query_rc (void *data)
688 {
689         struct cinergyt2 *cinergyt2 = data;
690         char buf[1] = { CINERGYT2_EP1_GET_RC_EVENTS };
691         struct cinergyt2_rc_event rc_events[12];
692         int n, len, i;
693
694         if (down_interruptible(&cinergyt2->sem))
695                 return;
696
697         len = cinergyt2_command(cinergyt2, buf, sizeof(buf),
698                                 (char *) rc_events, sizeof(rc_events));
699         if (len < 0)
700                 goto out;
701         if (len == 0) {
702                 if (time_after(jiffies, cinergyt2->last_event_jiffies +
703                                msecs_to_jiffies(150))) {
704                         /* stop key repeat */
705                         if (cinergyt2->rc_input_event != KEY_MAX) {
706                                 dprintk(1, "rc_input_event=%d Up\n", cinergyt2->rc_input_event);
707                                 input_report_key(cinergyt2->rc_input_dev,
708                                                  cinergyt2->rc_input_event, 0);
709                                 cinergyt2->rc_input_event = KEY_MAX;
710                         }
711                         cinergyt2->rc_last_code = ~0;
712                 }
713                 goto out;
714         }
715         cinergyt2->last_event_jiffies = jiffies;
716
717         for (n = 0; n < (len / sizeof(rc_events[0])); n++) {
718                 dprintk(1, "rc_events[%d].value = %x, type=%x\n",
719                         n, le32_to_cpu(rc_events[n].value), rc_events[n].type);
720
721                 if (rc_events[n].type == CINERGYT2_RC_EVENT_TYPE_NEC &&
722                     rc_events[n].value == ~0) {
723                         /* keyrepeat bit -> just repeat last rc_input_event */
724                 } else {
725                         cinergyt2->rc_input_event = KEY_MAX;
726                         for (i = 0; i < ARRAY_SIZE(rc_keys); i += 3) {
727                                 if (rc_keys[i + 0] == rc_events[n].type &&
728                                     rc_keys[i + 1] == le32_to_cpu(rc_events[n].value)) {
729                                         cinergyt2->rc_input_event = rc_keys[i + 2];
730                                         break;
731                                 }
732                         }
733                 }
734
735                 if (cinergyt2->rc_input_event != KEY_MAX) {
736                         if (rc_events[n].value == cinergyt2->rc_last_code &&
737                             cinergyt2->rc_last_code != ~0) {
738                                 /* emit a key-up so the double event is recognized */
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                         }
743                         dprintk(1, "rc_input_event=%d\n", cinergyt2->rc_input_event);
744                         input_report_key(cinergyt2->rc_input_dev,
745                                          cinergyt2->rc_input_event, 1);
746                         cinergyt2->rc_last_code = rc_events[n].value;
747                 }
748         }
749
750 out:
751         schedule_delayed_work(&cinergyt2->rc_query_work,
752                               msecs_to_jiffies(RC_QUERY_INTERVAL));
753
754         up(&cinergyt2->sem);
755 }
756
757 static int cinergyt2_register_rc(struct cinergyt2 *cinergyt2)
758 {
759         struct input_dev *input_dev;
760         int i;
761
762         cinergyt2->rc_input_dev = input_dev = input_allocate_device();
763         if (!input_dev)
764                 return -ENOMEM;
765
766         usb_make_path(cinergyt2->udev, cinergyt2->phys, sizeof(cinergyt2->phys));
767         strlcat(cinergyt2->phys, "/input0", sizeof(cinergyt2->phys));
768         cinergyt2->rc_input_event = KEY_MAX;
769         cinergyt2->rc_last_code = ~0;
770         INIT_WORK(&cinergyt2->rc_query_work, cinergyt2_query_rc, cinergyt2);
771
772         input_dev->name = DRIVER_NAME " remote control";
773         input_dev->phys = cinergyt2->phys;
774         input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
775         for (i = 0; i < ARRAY_SIZE(rc_keys); i += 3)
776                 set_bit(rc_keys[i + 2], input_dev->keybit);
777         input_dev->keycodesize = 0;
778         input_dev->keycodemax = 0;
779
780         input_register_device(cinergyt2->rc_input_dev);
781         schedule_delayed_work(&cinergyt2->rc_query_work, HZ/2);
782
783         return 0;
784 }
785
786 static void cinergyt2_unregister_rc(struct cinergyt2 *cinergyt2)
787 {
788         cancel_delayed_work(&cinergyt2->rc_query_work);
789         flush_scheduled_work();
790         input_unregister_device(cinergyt2->rc_input_dev);
791 }
792
793 static inline void cinergyt2_suspend_rc(struct cinergyt2 *cinergyt2)
794 {
795         cancel_delayed_work(&cinergyt2->rc_query_work);
796 }
797
798 static inline void cinergyt2_resume_rc(struct cinergyt2 *cinergyt2)
799 {
800         schedule_delayed_work(&cinergyt2->rc_query_work, HZ/2);
801 }
802
803 #else
804
805 static inline int cinergyt2_register_rc(struct cinergyt2 *cinergyt2) { return 0; }
806 static inline void cinergyt2_unregister_rc(struct cinergyt2 *cinergyt2) { }
807 static inline void cinergyt2_suspend_rc(struct cinergyt2 *cinergyt2) { }
808 static inline void cinergyt2_resume_rc(struct cinergyt2 *cinergyt2) { }
809
810 #endif /* ENABLE_RC */
811
812 static void cinergyt2_query (void *data)
813 {
814         struct cinergyt2 *cinergyt2 = (struct cinergyt2 *) data;
815         char cmd [] = { CINERGYT2_EP1_GET_TUNER_STATUS };
816         struct dvbt_get_status_msg *s = &cinergyt2->status;
817         uint8_t lock_bits;
818         uint32_t unc;
819
820         if (down_interruptible(&cinergyt2->sem))
821                 return;
822
823         unc = s->uncorrected_block_count;
824         lock_bits = s->lock_bits;
825
826         cinergyt2_command(cinergyt2, cmd, sizeof(cmd), (char *) s, sizeof(*s));
827
828         unc += le32_to_cpu(s->uncorrected_block_count);
829         s->uncorrected_block_count = unc;
830
831         if (lock_bits != s->lock_bits) {
832                 wake_up_interruptible(&cinergyt2->poll_wq);
833                 cinergyt2->pending_fe_events++;
834         }
835
836         schedule_delayed_work(&cinergyt2->query_work,
837                               msecs_to_jiffies(QUERY_INTERVAL));
838
839         up(&cinergyt2->sem);
840 }
841
842 static int cinergyt2_probe (struct usb_interface *intf,
843                   const struct usb_device_id *id)
844 {
845         struct cinergyt2 *cinergyt2;
846         int err;
847
848         if (!(cinergyt2 = kmalloc (sizeof(struct cinergyt2), GFP_KERNEL))) {
849                 dprintk(1, "out of memory?!?\n");
850                 return -ENOMEM;
851         }
852
853         memset (cinergyt2, 0, sizeof (struct cinergyt2));
854         usb_set_intfdata (intf, (void *) cinergyt2);
855
856         init_MUTEX(&cinergyt2->sem);
857         init_waitqueue_head (&cinergyt2->poll_wq);
858         INIT_WORK(&cinergyt2->query_work, cinergyt2_query, cinergyt2);
859
860         cinergyt2->udev = interface_to_usbdev(intf);
861         cinergyt2->param.cmd = CINERGYT2_EP1_SET_TUNER_PARAMETERS;
862
863         if (cinergyt2_alloc_stream_urbs (cinergyt2) < 0) {
864                 dprintk(1, "unable to allocate stream urbs\n");
865                 kfree(cinergyt2);
866                 return -ENOMEM;
867         }
868
869         dvb_register_adapter(&cinergyt2->adapter, DRIVER_NAME, THIS_MODULE);
870
871         cinergyt2->demux.priv = cinergyt2;
872         cinergyt2->demux.filternum = 256;
873         cinergyt2->demux.feednum = 256;
874         cinergyt2->demux.start_feed = cinergyt2_start_feed;
875         cinergyt2->demux.stop_feed = cinergyt2_stop_feed;
876         cinergyt2->demux.dmx.capabilities = DMX_TS_FILTERING |
877                                             DMX_SECTION_FILTERING |
878                                             DMX_MEMORY_BASED_FILTERING;
879
880         if ((err = dvb_dmx_init(&cinergyt2->demux)) < 0) {
881                 dprintk(1, "dvb_dmx_init() failed (err = %d)\n", err);
882                 goto bailout;
883         }
884
885         cinergyt2->dmxdev.filternum = cinergyt2->demux.filternum;
886         cinergyt2->dmxdev.demux = &cinergyt2->demux.dmx;
887         cinergyt2->dmxdev.capabilities = 0;
888
889         if ((err = dvb_dmxdev_init(&cinergyt2->dmxdev, &cinergyt2->adapter)) < 0) {
890                 dprintk(1, "dvb_dmxdev_init() failed (err = %d)\n", err);
891                 goto bailout;
892         }
893
894         if (dvb_net_init(&cinergyt2->adapter, &cinergyt2->dvbnet, &cinergyt2->demux.dmx))
895                 dprintk(1, "dvb_net_init() failed!\n");
896
897         dvb_register_device(&cinergyt2->adapter, &cinergyt2->fedev,
898                             &cinergyt2_fe_template, cinergyt2,
899                             DVB_DEVICE_FRONTEND);
900
901         err = cinergyt2_register_rc(cinergyt2);
902         if (err)
903                 goto bailout;
904
905         return 0;
906
907 bailout:
908         dvb_dmxdev_release(&cinergyt2->dmxdev);
909         dvb_dmx_release(&cinergyt2->demux);
910         dvb_unregister_adapter(&cinergyt2->adapter);
911         cinergyt2_free_stream_urbs(cinergyt2);
912         kfree(cinergyt2);
913         return -ENOMEM;
914 }
915
916 static void cinergyt2_disconnect (struct usb_interface *intf)
917 {
918         struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
919
920         if (down_interruptible(&cinergyt2->sem))
921                 return;
922
923         cinergyt2_unregister_rc(cinergyt2);
924
925         cinergyt2->demux.dmx.close(&cinergyt2->demux.dmx);
926         dvb_net_release(&cinergyt2->dvbnet);
927         dvb_dmxdev_release(&cinergyt2->dmxdev);
928         dvb_dmx_release(&cinergyt2->demux);
929         dvb_unregister_device(cinergyt2->fedev);
930         dvb_unregister_adapter(&cinergyt2->adapter);
931
932         cinergyt2_free_stream_urbs(cinergyt2);
933         up(&cinergyt2->sem);
934         kfree(cinergyt2);
935 }
936
937 static int cinergyt2_suspend (struct usb_interface *intf, pm_message_t state)
938 {
939         struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
940
941         if (down_interruptible(&cinergyt2->sem))
942                 return -ERESTARTSYS;
943
944         if (state.event > PM_EVENT_ON) {
945                 struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
946
947                 cinergyt2_suspend_rc(cinergyt2);
948                 cancel_delayed_work(&cinergyt2->query_work);
949                 if (cinergyt2->streaming)
950                         cinergyt2_stop_stream_xfer(cinergyt2);
951                 flush_scheduled_work();
952                 cinergyt2_sleep(cinergyt2, 1);
953         }
954
955         up(&cinergyt2->sem);
956         return 0;
957 }
958
959 static int cinergyt2_resume (struct usb_interface *intf)
960 {
961         struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
962         struct dvbt_set_parameters_msg *param = &cinergyt2->param;
963
964         if (down_interruptible(&cinergyt2->sem))
965                 return -ERESTARTSYS;
966
967         if (!cinergyt2->sleeping) {
968                 cinergyt2_sleep(cinergyt2, 0);
969                 cinergyt2_command(cinergyt2, (char *) param, sizeof(*param), NULL, 0);
970                 if (cinergyt2->streaming)
971                         cinergyt2_start_stream_xfer(cinergyt2);
972                 schedule_delayed_work(&cinergyt2->query_work, HZ/2);
973         }
974
975         cinergyt2_resume_rc(cinergyt2);
976
977         up(&cinergyt2->sem);
978         return 0;
979 }
980
981 static const struct usb_device_id cinergyt2_table [] __devinitdata = {
982         { USB_DEVICE(0x0ccd, 0x0038) },
983         { 0 }
984 };
985
986 MODULE_DEVICE_TABLE(usb, cinergyt2_table);
987
988 static struct usb_driver cinergyt2_driver = {
989         .owner  = THIS_MODULE,
990         .name   = "cinergyT2",
991         .probe  = cinergyt2_probe,
992         .disconnect     = cinergyt2_disconnect,
993         .suspend        = cinergyt2_suspend,
994         .resume         = cinergyt2_resume,
995         .id_table       = cinergyt2_table
996 };
997
998 static int __init cinergyt2_init (void)
999 {
1000         int err;
1001
1002         if ((err = usb_register(&cinergyt2_driver)) < 0)
1003                 dprintk(1, "usb_register() failed! (err %i)\n", err);
1004
1005         return err;
1006 }
1007
1008 static void __exit cinergyt2_exit (void)
1009 {
1010         usb_deregister(&cinergyt2_driver);
1011 }
1012
1013 module_init (cinergyt2_init);
1014 module_exit (cinergyt2_exit);
1015
1016 MODULE_LICENSE("GPL");
1017 MODULE_AUTHOR("Holger Waechtler, Daniel Mack");
1018