aboutsummaryrefslogtreecommitdiff
path: root/drivers/media/dvb/dvb-usb/m920x.c
blob: 9e5ec080529dc3fac54b4143d316de94a38fc260 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
/* DVB USB compliant linux driver for MSI Mega Sky 580 DVB-T USB2.0 receiver
 *
 * Copyright (C) 2006 Aapo Tahkola (aet@rasterburn.org)
 *
 *	This program is free software; you can redistribute it and/or modify it
 *	under the terms of the GNU General Public License as published by the Free
 *	Software Foundation, version 2.
 *
 * see Documentation/dvb/README.dvb-usb for more information
 */

#include "m920x.h"

#include "mt352.h"
#include "mt352_priv.h"
#include "qt1010.h"

/* debug */
static int dvb_usb_m920x_debug;
module_param_named(debug,dvb_usb_m920x_debug, int, 0644);
MODULE_PARM_DESC(debug, "set debugging level (1=rc (or-able))." DVB_USB_DEBUG_STATUS);

static struct dvb_usb_rc_key megasky_rc_keys [] = {
	{ 0x0, 0x12, KEY_POWER },
	{ 0x0, 0x1e, KEY_CYCLEWINDOWS }, /* min/max */
	{ 0x0, 0x02, KEY_CHANNELUP },
	{ 0x0, 0x05, KEY_CHANNELDOWN },
	{ 0x0, 0x03, KEY_VOLUMEUP },
	{ 0x0, 0x06, KEY_VOLUMEDOWN },
	{ 0x0, 0x04, KEY_MUTE },
	{ 0x0, 0x07, KEY_OK }, /* TS */
	{ 0x0, 0x08, KEY_STOP },
	{ 0x0, 0x09, KEY_MENU }, /* swap */
	{ 0x0, 0x0a, KEY_REWIND },
	{ 0x0, 0x1b, KEY_PAUSE },
	{ 0x0, 0x1f, KEY_FASTFORWARD },
	{ 0x0, 0x0c, KEY_RECORD },
	{ 0x0, 0x0d, KEY_CAMERA }, /* screenshot */
	{ 0x0, 0x0e, KEY_COFFEE }, /* "MTS" */
};

static inline int m9206_read(struct usb_device *udev, u8 request, u16 value, u16 index, void *data, int size)
{
	int ret;

	ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
			      request, USB_TYPE_VENDOR | USB_DIR_IN,
			      value, index, data, size, 2000);
	if (ret < 0)
		return ret;

	if (ret != size)
		return -EIO;

	return 0;
}

static inline int m9206_write(struct usb_device *udev, u8 request, u16 value, u16 index)
{
	int ret;

	ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
			      request, USB_TYPE_VENDOR | USB_DIR_OUT,
			      value, index, NULL, 0, 2000);
	return ret;
}

static int m9206_rc_init(struct usb_device *udev)
{
	int ret = 0;

	/* Remote controller init. */
	if ((ret = m9206_write(udev, M9206_CORE, 0xa8, M9206_RC_INIT2)) != 0)
		return ret;

	if ((ret = m9206_write(udev, M9206_CORE, 0x51, M9206_RC_INIT1)) != 0)
		return ret;

	return ret;
}

static int m9206_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
{
	struct m9206_state *m = d->priv;
	int i, ret = 0;
	u8 rc_state[2];


	if ((ret = m9206_read(d->udev, M9206_CORE, 0x0, M9206_RC_STATE, rc_state, 1)) != 0)
		goto unlock;

	if ((ret = m9206_read(d->udev, M9206_CORE, 0x0, M9206_RC_KEY, rc_state + 1, 1)) != 0)
		goto unlock;

	for (i = 0; i < ARRAY_SIZE(megasky_rc_keys); i++)
		if (megasky_rc_keys[i].data == rc_state[1]) {
			*event = megasky_rc_keys[i].event;

			switch(rc_state[0]) {
			case 0x80:
				*state = REMOTE_NO_KEY_PRESSED;
				goto unlock;

			case 0x93:
			case 0x92:
				m->rep_count = 0;
				*state = REMOTE_KEY_PRESSED;
				goto unlock;

			case 0x91:
				/* For comfort. */
				if (++m->rep_count > 2)
					*state = REMOTE_KEY_REPEAT;
				goto unlock;

			default:
				deb_rc("Unexpected rc response %x\n", rc_state[0]);
				*state = REMOTE_NO_KEY_PRESSED;
				goto unlock;
			}
		}

	if (rc_state[1] != 0)
		deb_rc("Unknown rc key %x\n", rc_state[1]);

	*state = REMOTE_NO_KEY_PRESSED;

	unlock:

	return ret;
}

/* I2C */

static int m9206_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], int num)
{
	struct dvb_usb_device *d = i2c_get_adapdata(adap);
	int i;
	int ret = 0;

	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
		return -EAGAIN;

	if (num > 2)
		return -EINVAL;

	for (i = 0; i < num; i++) {
		u8 w_len;

		if ((ret = m9206_write(d->udev, M9206_I2C, msg[i].addr, 0x80)) != 0)
			goto unlock;

		if ((ret = m9206_write(d->udev, M9206_I2C, msg[i].buf[0], 0x0)) != 0)
			goto unlock;

		if (i + 1 < num && msg[i + 1].flags & I2C_M_RD) {
			/* Possibly device dependant */
			if (msg[i].addr == d->adapter[0].pll_addr)
				w_len = 0xc5;
			else
				w_len = 0x1f;

			if ((ret = m9206_write(d->udev, M9206_I2C, w_len, 0x80)) != 0)
				goto unlock;

			if ((ret = m9206_read(d->udev, M9206_I2C, 0x0, 0x60, msg[i + 1].buf, msg[i + 1].len)) != 0)
				goto unlock;

			i++;
		} else {
			if (msg[i].len != 2)
				return -EINVAL;

			if ((ret = m9206_write(d->udev, M9206_I2C, msg[i].buf[1], 0x40)) != 0)
				goto unlock;
		}
	}
	ret = i;
	unlock:
	mutex_unlock(&d->i2c_mutex);

	return ret;
}

static u32 m9206_i2c_func(struct i2c_adapter *adapter)
{
	return I2C_FUNC_I2C;
}

static struct i2c_algorithm m9206_i2c_algo = {
	.master_xfer   = m9206_i2c_xfer,
	.functionality = m9206_i2c_func,
};

/* Callbacks for DVB USB */
static int megasky_identify_state(struct usb_device *udev,
				  struct dvb_usb_device_properties *props,
				  struct dvb_usb_device_description **desc,
				  int *cold)
{
	struct usb_host_interface *alt;

	alt = usb_altnum_to_altsetting(usb_ifnum_to_if(udev, 0), 1);
	*cold = (alt == NULL) ? 1 : 0;

	return 0;
}

static int megasky_mt352_demod_init(struct dvb_frontend *fe)
{
	u8 config[] = { CONFIG, 0x3d };
	u8 clock[] = { CLOCK_CTL, 0x30 };
	u8 reset[] = { RESET, 0x80 };
	u8 adc_ctl[] = { ADC_CTL_1, 0x40 };
	u8 agc[] = { AGC_TARGET, 0x1c, 0x20 };
	u8 sec_agc[] = { 0x69, 0x00, 0xff, 0xff, 0x40, 0xff, 0x00, 0x40, 0x40 };
	u8 unk1[] = { 0x93, 0x1a };
	u8 unk2[] = { 0xb5, 0x7a };

	mt352_write(fe, config, ARRAY_SIZE(config));
	mt352_write(fe, clock, ARRAY_SIZE(clock));
	mt352_write(fe, reset, ARRAY_SIZE(reset));
	mt352_write(fe, adc_ctl, ARRAY_SIZE(adc_ctl));
	mt352_write(fe, agc, ARRAY_SIZE(agc));
	mt352_write(fe, sec_agc, ARRAY_SIZE(sec_agc));
	mt352_write(fe, unk1, ARRAY_SIZE(unk1));
	mt352_write(fe, unk2, ARRAY_SIZE(unk2));

	deb_rc("Demod init!\n");

	return 0;
}

static struct mt352_config megasky_mt352_config = {
	.demod_address = 0x1e,
	.no_tuner = 1,
	.demod_init = megasky_mt352_demod_init,
};

static int megasky_frontend_attach(struct dvb_usb_adapter *adap)
{
	deb_rc("megasky_frontend_attach!\n");

	if ((adap->fe = dvb_attach(mt352_attach, &megasky_mt352_config, &adap->dev->i2c_adap)) != NULL)
		return 0;
	return -EIO;
}

static int megasky_tuner_attach(struct dvb_usb_adapter *adap)
{
	adap->pll_addr = 0xc4;
	adap->pll_desc = NULL;
	adap->fe->ops.tuner_ops.set_params = qt1010_set_params;

	return 0;
}

static int m9206_set_filter(struct dvb_usb_adapter *adap, int type, int idx, int pid)
{
	int ret = 0;

	if (pid >= 0x8000)
		return -EINVAL;

	pid |= 0x8000;

	if ((ret = m9206_write(adap->dev->udev, M9206_FILTER, pid, (type << 8) | (idx * 4) )) != 0)
		return ret;

	if ((ret = m9206_write(adap->dev->udev, M9206_FILTER, 0, (type << 8) | (idx * 4) )) != 0)
		return ret;

	return ret;
}

static int m9206_update_filters(struct dvb_usb_adapter *adap)
{
	struct m9206_state *m = adap->dev->priv;
	int enabled = m->filtering_enabled;
	int i, ret = 0, filter = 0;

	for (i = 0; i < M9206_MAX_FILTERS; i++)
		if (m->filters[i] == 8192)
			enabled = 0;

	/* Disable all filters */
	if ((ret = m9206_set_filter(adap, 0x81, 1, enabled)) != 0)
		return ret;

	for (i = 0; i < M9206_MAX_FILTERS; i++)
		if ((ret = m9206_set_filter(adap, 0x81, i + 2, 0)) != 0)
			return ret;

	if ((ret = m9206_set_filter(adap, 0x82, 0, 0x0)) != 0)
		return ret;

	/* Set */
	if (enabled) {
		for (i = 0; i < M9206_MAX_FILTERS; i++) {
			if (m->filters[i] == 0)
				continue;

			if ((ret = m9206_set_filter(adap, 0x81, filter + 2, m->filters[i])) != 0)
				return ret;

			filter++;
		}
	}

	if ((ret = m9206_set_filter(adap, 0x82, 0, 0x02f5)) != 0)
		return ret;

	return ret;
}

static int m9206_pid_filter_ctrl(struct dvb_usb_adapter *adap, int onoff)
{
	struct m9206_state *m = adap->dev->priv;

	m->filtering_enabled = onoff ? 1 : 0;

	return m9206_update_filters(adap);
}

static int m9206_pid_filter(struct dvb_usb_adapter *adap, int index, u16 pid, int onoff)
{
	struct m9206_state *m = adap->dev->priv;

	m->filters[index] = onoff ? pid : 0;

	return m9206_update_filters(adap);
}

static int m9206_firmware_download(struct usb_device *udev, const struct firmware *fw)
{
	u16 value, index, size;
	u8 read[4], *buff;
	int i, pass, ret = 0;

	buff = kmalloc(65536, GFP_KERNEL);

	if ((ret = m9206_read(udev, M9206_FILTER, 0x0, 0x8000, read, 4)) != 0)
		goto done;
	deb_rc("%x %x %x %x\n", read[0], read[1], read[2], read[3]);

	if ((ret = m9206_read(udev, M9206_FW, 0x0, 0x0, read, 1)) != 0)
		goto done;
	deb_rc("%x\n", read[0]);

	for (pass = 0; pass < 2; pass++) {
		for (i = 0; i + (sizeof(u16) * 3) < fw->size;) {
			value = le16_to_cpu(*(u16 *)(fw->data + i));
			i += sizeof(u16);

			index = le16_to_cpu(*(u16 *)(fw->data + i));
			i += sizeof(u16);

			size = le16_to_cpu(*(u16 *)(fw->data + i));
			i += sizeof(u16);

			if (pass == 1) {
				/* Will stall if using fw->data ... */
				memcpy(buff, fw->data + i, size);

				ret = usb_control_msg(udev, usb_sndctrlpipe(udev,0),
					    M9206_FW,
					    USB_TYPE_VENDOR | USB_DIR_OUT,
					    value, index, buff, size, 20);
				if (ret != size) {
					deb_rc("error while uploading fw!\n");
					ret = -EIO;
					goto done;
				}
				msleep(3);
			}
			i += size;
		}
		if (i != fw->size) {
			ret = -EINVAL;
			goto done;
		}
	}

	msleep(36);

	/* m9206 will disconnect itself from the bus after this. */
	(void) m9206_write(udev, M9206_CORE, 0x01, M9206_FW_GO);
	deb_rc("firmware uploaded!\n");

	done:
	kfree(buff);

	return ret;
}

/* DVB USB Driver stuff */
static struct dvb_usb_device_properties megasky_properties;

static int m920x_probe(struct usb_interface *intf, const struct usb_device_id *id)
{
	struct dvb_usb_device *d;
	struct usb_host_interface *alt;
	int ret;

	if ((ret = dvb_usb_device_init(intf, &megasky_properties, THIS_MODULE, &d)) == 0) {
		deb_rc("probed!\n");

		alt = usb_altnum_to_altsetting(intf, 1);
		if (alt == NULL) {
			deb_rc("not alt found!\n");
			return -ENODEV;
		}

		ret = usb_set_interface(d->udev, alt->desc.bInterfaceNumber, alt->desc.bAlternateSetting);
		if (ret < 0)
			return ret;

		deb_rc("Changed to alternate setting!\n");

		if ((ret = m9206_rc_init(d->udev)) != 0)
			return ret;
	}
	return ret;
}

static struct usb_device_id m920x_table [] = {
		{ USB_DEVICE(USB_VID_MSI, USB_PID_MSI_MEGASKY580) },
		{ }		/* Terminating entry */
};
MODULE_DEVICE_TABLE (usb, m920x_table);

static struct dvb_usb_device_properties megasky_properties = {
	.usb_ctrl = DEVICE_SPECIFIC,
	.firmware = "dvb-usb-megasky-02.fw",
	.download_firmware = m9206_firmware_download,

	.rc_interval      = 100,
	.rc_key_map       = megasky_rc_keys,
	.rc_key_map_size  = ARRAY_SIZE(megasky_rc_keys),
	.rc_query         = m9206_rc_query,

	.size_of_priv     = sizeof(struct m9206_state),

	.identify_state   = megasky_identify_state,
	.num_adapters = 1,
	.adapter = {{
		.caps = DVB_USB_IS_AN_I2C_ADAPTER | DVB_USB_ADAP_HAS_PID_FILTER |
			DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,

		.pid_filter_count = 8,
		.pid_filter       = m9206_pid_filter,
		.pid_filter_ctrl  = m9206_pid_filter_ctrl,

		.frontend_attach  = megasky_frontend_attach,
		.tuner_attach     = megasky_tuner_attach,

		.stream = {
			.type = USB_BULK,
			.count = 8,
			.endpoint = 0x81,
			.u = {
				.bulk = {
					.buffersize = 512,
				}
			}
		},
	}},
	.i2c_algo         = &m9206_i2c_algo,

	.num_device_descs = 1,
	.devices = {
		{   "MSI Mega Sky 580 DVB-T USB2.0",
			{ &m920x_table[0], NULL },
			{ NULL },
		},
		{ NULL },
	}
};

static struct usb_driver m920x_driver = {
	.name		= "dvb_usb_m920x",
	.probe		= m920x_probe,
	.disconnect	= dvb_usb_device_exit,
	.id_table	= m920x_table,
};

/* module stuff */
static int __init m920x_module_init(void)
{
	int ret;

	if ((ret = usb_register(&m920x_driver))) {
		err("usb_register failed. Error number %d", ret);
		return ret;
	}

	return 0;
}

static void __exit m920x_module_exit(void)
{
	/* deregister this driver from the USB subsystem */
	usb_deregister(&m920x_driver);
}

module_init (m920x_module_init);
module_exit (m920x_module_exit);

MODULE_AUTHOR("Aapo Tahkola <aet@rasterburn.org>");
MODULE_DESCRIPTION("Driver MSI Mega Sky 580 DVB-T USB2.0 / Uli m920x");
MODULE_VERSION("0.1");
MODULE_LICENSE("GPL");