]> err.no Git - linux-2.6/blob - drivers/media/dvb/dvb-usb/m920x.c
V4L/DVB (5448): M920x: rename megasky_identify_state to m920x_identify_state
[linux-2.6] / drivers / media / dvb / dvb-usb / m920x.c
1 /* DVB USB compliant linux driver for MSI Mega Sky 580 DVB-T USB2.0 receiver
2  *
3  * Copyright (C) 2006 Aapo Tahkola (aet@rasterburn.org)
4  *
5  *      This program is free software; you can redistribute it and/or modify it
6  *      under the terms of the GNU General Public License as published by the Free
7  *      Software Foundation, version 2.
8  *
9  * see Documentation/dvb/README.dvb-usb for more information
10  */
11
12 #include "m920x.h"
13
14 #include "mt352.h"
15 #include "mt352_priv.h"
16 #include "qt1010.h"
17
18 /* debug */
19 static int dvb_usb_m920x_debug;
20 module_param_named(debug,dvb_usb_m920x_debug, int, 0644);
21 MODULE_PARM_DESC(debug, "set debugging level (1=rc (or-able))." DVB_USB_DEBUG_STATUS);
22
23 static struct dvb_usb_rc_key megasky_rc_keys [] = {
24         { 0x0, 0x12, KEY_POWER },
25         { 0x0, 0x1e, KEY_CYCLEWINDOWS }, /* min/max */
26         { 0x0, 0x02, KEY_CHANNELUP },
27         { 0x0, 0x05, KEY_CHANNELDOWN },
28         { 0x0, 0x03, KEY_VOLUMEUP },
29         { 0x0, 0x06, KEY_VOLUMEDOWN },
30         { 0x0, 0x04, KEY_MUTE },
31         { 0x0, 0x07, KEY_OK }, /* TS */
32         { 0x0, 0x08, KEY_STOP },
33         { 0x0, 0x09, KEY_MENU }, /* swap */
34         { 0x0, 0x0a, KEY_REWIND },
35         { 0x0, 0x1b, KEY_PAUSE },
36         { 0x0, 0x1f, KEY_FASTFORWARD },
37         { 0x0, 0x0c, KEY_RECORD },
38         { 0x0, 0x0d, KEY_CAMERA }, /* screenshot */
39         { 0x0, 0x0e, KEY_COFFEE }, /* "MTS" */
40 };
41
42 static inline int m9206_read(struct usb_device *udev, u8 request, u16 value,\
43                              u16 index, void *data, int size)
44 {
45         int ret;
46
47         ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
48                               request, USB_TYPE_VENDOR | USB_DIR_IN,
49                               value, index, data, size, 2000);
50         if (ret < 0)
51                 return ret;
52
53         if (ret != size)
54                 return -EIO;
55
56         return 0;
57 }
58
59 static inline int m9206_write(struct usb_device *udev, u8 request,
60                               u16 value, u16 index)
61 {
62         int ret;
63
64         ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
65                               request, USB_TYPE_VENDOR | USB_DIR_OUT,
66                               value, index, NULL, 0, 2000);
67         return ret;
68 }
69
70 static int m9206_init(struct dvb_usb_device *d)
71 {
72         int ret = 0;
73
74         /* Remote controller init. */
75         if (d->props.rc_query) {
76                 if ((ret = m9206_write(d->udev, M9206_CORE, 0xa8, M9206_RC_INIT2)) != 0)
77                         return ret;
78
79                 if ((ret = m9206_write(d->udev, M9206_CORE, 0x51, M9206_RC_INIT1)) != 0)
80                         return ret;
81         }
82
83         return ret;
84 }
85
86 static int m9206_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
87 {
88         struct m9206_state *m = d->priv;
89         int i, ret = 0;
90         u8 rc_state[2];
91
92         if ((ret = m9206_read(d->udev, M9206_CORE, 0x0, M9206_RC_STATE, rc_state, 1)) != 0)
93                 goto unlock;
94
95         if ((ret = m9206_read(d->udev, M9206_CORE, 0x0, M9206_RC_KEY, rc_state + 1, 1)) != 0)
96                 goto unlock;
97
98         for (i = 0; i < d->props.rc_key_map_size; i++)
99                 if (d->props.rc_key_map[i].data == rc_state[1]) {
100                         *event = d->props.rc_key_map[i].event;
101
102                         switch(rc_state[0]) {
103                         case 0x80:
104                                 *state = REMOTE_NO_KEY_PRESSED;
105                                 goto unlock;
106
107                         case 0x93:
108                         case 0x92:
109                                 m->rep_count = 0;
110                                 *state = REMOTE_KEY_PRESSED;
111                                 goto unlock;
112
113                         case 0x91:
114                                 /* For comfort. */
115                                 if (++m->rep_count > 2)
116                                         *state = REMOTE_KEY_REPEAT;
117                                 goto unlock;
118
119                         default:
120                                 deb_rc("Unexpected rc response %x\n", rc_state[0]);
121                                 *state = REMOTE_NO_KEY_PRESSED;
122                                 goto unlock;
123                         }
124                 }
125
126         if (rc_state[1] != 0)
127                 deb_rc("Unknown rc key %x\n", rc_state[1]);
128
129         *state = REMOTE_NO_KEY_PRESSED;
130
131         unlock:
132
133         return ret;
134 }
135
136 /* I2C */
137 static int m9206_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
138                           int num)
139 {
140         struct dvb_usb_device *d = i2c_get_adapdata(adap);
141         int i, j;
142         int ret = 0;
143
144         if (!num)
145                 return -EINVAL;
146
147         if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
148                 return -EAGAIN;
149
150         for (i = 0; i < num; i++) {
151                 if (msg[i].flags & (I2C_M_NO_RD_ACK|I2C_M_IGNORE_NAK|I2C_M_TEN) ||
152                     msg[i].len == 0) {
153                         /* For a 0 byte message, I think sending the address to index 0x80|0x40
154                          * would be the correct thing to do.  However, zero byte messages are
155                          * only used for probing, and since we don't know how to get the slave's
156                          * ack, we can't probe. */
157                         ret = -ENOTSUPP;
158                         goto unlock;
159                 }
160                 /* Send START & address/RW bit */
161                 if (!(msg[i].flags & I2C_M_NOSTART)) {
162                         if ((ret = m9206_write(d->udev, M9206_I2C, (msg[i].addr<<1)|(msg[i].flags&I2C_M_RD?0x01:0), 0x80)) != 0)
163                                 goto unlock;
164                         /* Should check for ack here, if we knew how. */
165                 }
166                 if (msg[i].flags & I2C_M_RD) {
167                         for (j = 0; j < msg[i].len; j++) {
168                                 /* Last byte of transaction? Send STOP, otherwise send ACK. */
169                                 int stop = (i+1 == num && j+1 == msg[i].len)?0x40:0x01;
170                                 if ((ret = m9206_read(d->udev, M9206_I2C, 0x0, 0x20|stop, &msg[i].buf[j], 1)) != 0)
171                                         goto unlock;
172                         }
173                 } else {
174                         for (j = 0; j < msg[i].len; j++) {
175                                 /* Last byte of transaction? Then send STOP. */
176                                 int stop = (i+1 == num && j+1 == msg[i].len)?0x40:0x00;
177                                 if ((ret = m9206_write(d->udev, M9206_I2C, msg[i].buf[j], stop)) != 0)
178                                         goto unlock;
179                                 /* Should check for ack here too. */
180                         }
181                 }
182         }
183         ret = num;
184
185 unlock:
186         mutex_unlock(&d->i2c_mutex);
187
188         return ret;
189 }
190
191 static u32 m9206_i2c_func(struct i2c_adapter *adapter)
192 {
193         return I2C_FUNC_I2C;
194 }
195
196 static struct i2c_algorithm m9206_i2c_algo = {
197         .master_xfer   = m9206_i2c_xfer,
198         .functionality = m9206_i2c_func,
199 };
200
201
202 static int m9206_set_filter(struct dvb_usb_adapter *adap, int type, int idx,
203                             int pid)
204 {
205         int ret = 0;
206
207         if (pid >= 0x8000)
208                 return -EINVAL;
209
210         pid |= 0x8000;
211
212         if ((ret = m9206_write(adap->dev->udev, M9206_FILTER, pid, (type << 8) | (idx * 4) )) != 0)
213                 return ret;
214
215         if ((ret = m9206_write(adap->dev->udev, M9206_FILTER, 0, (type << 8) | (idx * 4) )) != 0)
216                 return ret;
217
218         return ret;
219 }
220
221 static int m9206_update_filters(struct dvb_usb_adapter *adap)
222 {
223         struct m9206_state *m = adap->dev->priv;
224         int enabled = m->filtering_enabled;
225         int i, ret = 0, filter = 0;
226
227         for (i = 0; i < M9206_MAX_FILTERS; i++)
228                 if (m->filters[i] == 8192)
229                         enabled = 0;
230
231         /* Disable all filters */
232         if ((ret = m9206_set_filter(adap, 0x81, 1, enabled)) != 0)
233                 return ret;
234
235         for (i = 0; i < M9206_MAX_FILTERS; i++)
236                 if ((ret = m9206_set_filter(adap, 0x81, i + 2, 0)) != 0)
237                         return ret;
238
239         if ((ret = m9206_set_filter(adap, 0x82, 0, 0x0)) != 0)
240                 return ret;
241
242         /* Set */
243         if (enabled) {
244                 for (i = 0; i < M9206_MAX_FILTERS; i++) {
245                         if (m->filters[i] == 0)
246                                 continue;
247
248                         if ((ret = m9206_set_filter(adap, 0x81, filter + 2, m->filters[i])) != 0)
249                                 return ret;
250
251                         filter++;
252                 }
253         }
254
255         if ((ret = m9206_set_filter(adap, 0x82, 0, 0x02f5)) != 0)
256                 return ret;
257
258         return ret;
259 }
260
261 static int m9206_pid_filter_ctrl(struct dvb_usb_adapter *adap, int onoff)
262 {
263         struct m9206_state *m = adap->dev->priv;
264
265         m->filtering_enabled = onoff ? 1 : 0;
266
267         return m9206_update_filters(adap);
268 }
269
270 static int m9206_pid_filter(struct dvb_usb_adapter *adap, int index, u16 pid,
271                             int onoff)
272 {
273         struct m9206_state *m = adap->dev->priv;
274
275         m->filters[index] = onoff ? pid : 0;
276
277         return m9206_update_filters(adap);
278 }
279
280 static int m9206_firmware_download(struct usb_device *udev,
281                                    const struct firmware *fw)
282 {
283         u16 value, index, size;
284         u8 read[4], *buff;
285         int i, pass, ret = 0;
286
287         buff = kmalloc(65536, GFP_KERNEL);
288
289         if ((ret = m9206_read(udev, M9206_FILTER, 0x0, 0x8000, read, 4)) != 0)
290                 goto done;
291         deb_rc("%x %x %x %x\n", read[0], read[1], read[2], read[3]);
292
293         if ((ret = m9206_read(udev, M9206_FW, 0x0, 0x0, read, 1)) != 0)
294                 goto done;
295         deb_rc("%x\n", read[0]);
296
297         for (pass = 0; pass < 2; pass++) {
298                 for (i = 0; i + (sizeof(u16) * 3) < fw->size;) {
299                         value = le16_to_cpu(*(u16 *)(fw->data + i));
300                         i += sizeof(u16);
301
302                         index = le16_to_cpu(*(u16 *)(fw->data + i));
303                         i += sizeof(u16);
304
305                         size = le16_to_cpu(*(u16 *)(fw->data + i));
306                         i += sizeof(u16);
307
308                         if (pass == 1) {
309                                 /* Will stall if using fw->data ... */
310                                 memcpy(buff, fw->data + i, size);
311
312                                 ret = usb_control_msg(udev, usb_sndctrlpipe(udev,0),
313                                             M9206_FW,
314                                             USB_TYPE_VENDOR | USB_DIR_OUT,
315                                             value, index, buff, size, 20);
316                                 if (ret != size) {
317                                         deb_rc("error while uploading fw!\n");
318                                         ret = -EIO;
319                                         goto done;
320                                 }
321                                 msleep(3);
322                         }
323                         i += size;
324                 }
325                 if (i != fw->size) {
326                         ret = -EINVAL;
327                         goto done;
328                 }
329         }
330
331         msleep(36);
332
333         /* m9206 will disconnect itself from the bus after this. */
334         (void) m9206_write(udev, M9206_CORE, 0x01, M9206_FW_GO);
335         deb_rc("firmware uploaded!\n");
336
337         done:
338         kfree(buff);
339
340         return ret;
341 }
342
343 /* Callbacks for DVB USB */
344 static int m920x_identify_state(struct usb_device *udev,
345                                 struct dvb_usb_device_properties *props,
346                                 struct dvb_usb_device_description **desc,
347                                 int *cold)
348 {
349         struct usb_host_interface *alt;
350
351         alt = usb_altnum_to_altsetting(usb_ifnum_to_if(udev, 0), 1);
352         *cold = (alt == NULL) ? 1 : 0;
353
354         return 0;
355 }
356
357 static int megasky_mt352_demod_init(struct dvb_frontend *fe)
358 {
359         u8 config[] = { CONFIG, 0x3d };
360         u8 clock[] = { CLOCK_CTL, 0x30 };
361         u8 reset[] = { RESET, 0x80 };
362         u8 adc_ctl[] = { ADC_CTL_1, 0x40 };
363         u8 agc[] = { AGC_TARGET, 0x1c, 0x20 };
364         u8 sec_agc[] = { 0x69, 0x00, 0xff, 0xff, 0x40, 0xff, 0x00, 0x40, 0x40 };
365         u8 unk1[] = { 0x93, 0x1a };
366         u8 unk2[] = { 0xb5, 0x7a };
367
368         mt352_write(fe, config, ARRAY_SIZE(config));
369         mt352_write(fe, clock, ARRAY_SIZE(clock));
370         mt352_write(fe, reset, ARRAY_SIZE(reset));
371         mt352_write(fe, adc_ctl, ARRAY_SIZE(adc_ctl));
372         mt352_write(fe, agc, ARRAY_SIZE(agc));
373         mt352_write(fe, sec_agc, ARRAY_SIZE(sec_agc));
374         mt352_write(fe, unk1, ARRAY_SIZE(unk1));
375         mt352_write(fe, unk2, ARRAY_SIZE(unk2));
376
377         deb_rc("Demod init!\n");
378
379         return 0;
380 }
381
382 static struct mt352_config megasky_mt352_config = {
383         .demod_address = 0x0f,
384         .no_tuner = 1,
385         .demod_init = megasky_mt352_demod_init,
386 };
387
388 static int megasky_mt352_frontend_attach(struct dvb_usb_adapter *adap)
389 {
390         deb_rc("megasky_frontend_attach!\n");
391
392         if ((adap->fe = dvb_attach(mt352_attach, &megasky_mt352_config, &adap->dev->i2c_adap)) == NULL)
393                 return -EIO;
394
395         return 0;
396 }
397
398 static struct qt1010_config megasky_qt1010_config = {
399         .i2c_address = 0x62
400 };
401
402 static int megasky_qt1010_tuner_attach(struct dvb_usb_adapter *adap)
403 {
404         if (dvb_attach(qt1010_attach, adap->fe, &adap->dev->i2c_adap,
405                        &megasky_qt1010_config) == NULL)
406                 return -ENODEV;
407
408         return 0;
409 }
410
411 /* DVB USB Driver stuff */
412 static struct dvb_usb_device_properties megasky_properties;
413
414 static int m920x_probe(struct usb_interface *intf,
415                        const struct usb_device_id *id)
416 {
417         struct dvb_usb_device *d;
418         struct usb_host_interface *alt;
419         int ret;
420
421         deb_rc("Probed!\n");
422
423         if ((ret = dvb_usb_device_init(intf, &megasky_properties, THIS_MODULE, &d)) == 0)
424                 goto found;
425
426         return ret;
427
428 found:
429         alt = usb_altnum_to_altsetting(intf, 1);
430         if (alt == NULL) {
431                 deb_rc("No alt found!\n");
432                 return -ENODEV;
433         }
434
435         ret = usb_set_interface(d->udev, alt->desc.bInterfaceNumber,
436                                 alt->desc.bAlternateSetting);
437         if (ret < 0)
438                 return ret;
439
440         if ((ret = m9206_init(d)) != 0)
441                 return ret;
442
443         return ret;
444 }
445
446 static struct usb_device_id m920x_table [] = {
447                 { USB_DEVICE(USB_VID_MSI, USB_PID_MSI_MEGASKY580) },
448                 { }             /* Terminating entry */
449 };
450 MODULE_DEVICE_TABLE (usb, m920x_table);
451
452 static struct dvb_usb_device_properties megasky_properties = {
453         .caps = DVB_USB_IS_AN_I2C_ADAPTER,
454
455         .usb_ctrl = DEVICE_SPECIFIC,
456         .firmware = "dvb-usb-megasky-02.fw",
457         .download_firmware = m9206_firmware_download,
458
459         .rc_interval      = 100,
460         .rc_key_map       = megasky_rc_keys,
461         .rc_key_map_size  = ARRAY_SIZE(megasky_rc_keys),
462         .rc_query         = m9206_rc_query,
463
464         .size_of_priv     = sizeof(struct m9206_state),
465
466         .identify_state   = m920x_identify_state,
467         .num_adapters = 1,
468         .adapter = {{
469                 .caps = DVB_USB_ADAP_HAS_PID_FILTER |
470                         DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
471
472                 .pid_filter_count = 8,
473                 .pid_filter       = m9206_pid_filter,
474                 .pid_filter_ctrl  = m9206_pid_filter_ctrl,
475
476                 .frontend_attach  = megasky_mt352_frontend_attach,
477                 .tuner_attach     = megasky_qt1010_tuner_attach,
478
479                 .stream = {
480                         .type = USB_BULK,
481                         .count = 8,
482                         .endpoint = 0x81,
483                         .u = {
484                                 .bulk = {
485                                         .buffersize = 512,
486                                 }
487                         }
488                 },
489         }},
490         .i2c_algo         = &m9206_i2c_algo,
491
492         .num_device_descs = 1,
493         .devices = {
494                 {   "MSI Mega Sky 580 DVB-T USB2.0",
495                         { &m920x_table[0], NULL },
496                         { NULL },
497                 },
498         }
499 };
500
501 static struct usb_driver m920x_driver = {
502         .name           = "dvb_usb_m920x",
503         .probe          = m920x_probe,
504         .disconnect     = dvb_usb_device_exit,
505         .id_table       = m920x_table,
506 };
507
508 /* module stuff */
509 static int __init m920x_module_init(void)
510 {
511         int ret;
512
513         if ((ret = usb_register(&m920x_driver))) {
514                 err("usb_register failed. Error number %d", ret);
515                 return ret;
516         }
517
518         return 0;
519 }
520
521 static void __exit m920x_module_exit(void)
522 {
523         /* deregister this driver from the USB subsystem */
524         usb_deregister(&m920x_driver);
525 }
526
527 module_init (m920x_module_init);
528 module_exit (m920x_module_exit);
529
530 MODULE_AUTHOR("Aapo Tahkola <aet@rasterburn.org>");
531 MODULE_DESCRIPTION("Driver MSI Mega Sky 580 DVB-T USB2.0 / Uli m920x");
532 MODULE_VERSION("0.1");
533 MODULE_LICENSE("GPL");