summaryrefslogtreecommitdiff
path: root/drivers/media/usb/dvb-usb/vp702x.c
blob: 381b5c898a0764a4dbd39fff788a7933069a3c35 (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
// SPDX-License-Identifier: GPL-2.0-only
/* DVB USB compliant Linux driver for the TwinhanDTV StarBox USB2.0 DVB-S
 * receiver.
 *
 * Copyright (C) 2005 Ralph Metzler <rjkm@metzlerbros.de>
 *                    Metzler Brothers Systementwicklung GbR
 *
 * Copyright (C) 2005 Patrick Boettcher <patrick.boettcher@posteo.de>
 *
 * Thanks to Twinhan who kindly provided hardware and information.
 *
 * see Documentation/media/dvb-drivers/dvb-usb.rst for more information
 */
#include "vp702x.h"
#include <linux/mutex.h>

/* debug */
int dvb_usb_vp702x_debug;
module_param_named(debug,dvb_usb_vp702x_debug, int, 0644);
MODULE_PARM_DESC(debug, "set debugging level (1=info,xfer=2,rc=4 (or-able))." DVB_USB_DEBUG_STATUS);

DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);

struct vp702x_adapter_state {
	int pid_filter_count;
	int pid_filter_can_bypass;
	u8  pid_filter_state;
};

static int vp702x_usb_in_op_unlocked(struct dvb_usb_device *d, u8 req,
				     u16 value, u16 index, u8 *b, int blen)
{
	int ret;

	ret = usb_control_msg(d->udev,
		usb_rcvctrlpipe(d->udev, 0),
		req,
		USB_TYPE_VENDOR | USB_DIR_IN,
		value, index, b, blen,
		2000);

	if (ret < 0) {
		warn("usb in operation failed. (%d)", ret);
		ret = -EIO;
	} else
		ret = 0;


	deb_xfer("in: req. %02x, val: %04x, ind: %04x, buffer: ",req,value,index);
	debug_dump(b,blen,deb_xfer);

	return ret;
}

int vp702x_usb_in_op(struct dvb_usb_device *d, u8 req, u16 value,
		     u16 index, u8 *b, int blen)
{
	int ret;

	mutex_lock(&d->usb_mutex);
	ret = vp702x_usb_in_op_unlocked(d, req, value, index, b, blen);
	mutex_unlock(&d->usb_mutex);

	return ret;
}

static int vp702x_usb_out_op_unlocked(struct dvb_usb_device *d, u8 req,
				      u16 value, u16 index, u8 *b, int blen)
{
	int ret;
	deb_xfer("out: req. %02x, val: %04x, ind: %04x, buffer: ",req,value,index);
	debug_dump(b,blen,deb_xfer);

	if ((ret = usb_control_msg(d->udev,
			usb_sndctrlpipe(d->udev,0),
			req,
			USB_TYPE_VENDOR | USB_DIR_OUT,
			value,index,b,blen,
			2000)) != blen) {
		warn("usb out operation failed. (%d)",ret);
		return -EIO;
	} else
		return 0;
}

static int vp702x_usb_out_op(struct dvb_usb_device *d, u8 req, u16 value,
			     u16 index, u8 *b, int blen)
{
	int ret;

	mutex_lock(&d->usb_mutex);
	ret = vp702x_usb_out_op_unlocked(d, req, value, index, b, blen);
	mutex_unlock(&d->usb_mutex);

	return ret;
}

int vp702x_usb_inout_op(struct dvb_usb_device *d, u8 *o, int olen, u8 *i, int ilen, int msec)
{
	int ret;

	if ((ret = mutex_lock_interruptible(&d->usb_mutex)))
		return ret;

	ret = vp702x_usb_out_op_unlocked(d, REQUEST_OUT, 0, 0, o, olen);
	msleep(msec);
	ret = vp702x_usb_in_op_unlocked(d, REQUEST_IN, 0, 0, i, ilen);

	mutex_unlock(&d->usb_mutex);
	return ret;
}

static int vp702x_usb_inout_cmd(struct dvb_usb_device *d, u8 cmd, u8 *o,
				int olen, u8 *i, int ilen, int msec)
{
	struct vp702x_device_state *st = d->priv;
	int ret = 0;
	u8 *buf;
	int buflen = max(olen + 2, ilen + 1);

	ret = mutex_lock_interruptible(&st->buf_mutex);
	if (ret < 0)
		return ret;

	if (buflen > st->buf_len) {
		buf = kmalloc(buflen, GFP_KERNEL);
		if (!buf) {
			mutex_unlock(&st->buf_mutex);
			return -ENOMEM;
		}
		info("successfully reallocated a bigger buffer");
		kfree(st->buf);
		st->buf = buf;
		st->buf_len = buflen;
	} else {
		buf = st->buf;
	}

	buf[0] = 0x00;
	buf[1] = cmd;
	memcpy(&buf[2], o, olen);

	ret = vp702x_usb_inout_op(d, buf, olen+2, buf, ilen+1, msec);

	if (ret == 0)
		memcpy(i, &buf[1], ilen);
	mutex_unlock(&st->buf_mutex);

	return ret;
}

static int vp702x_set_pld_mode(struct dvb_usb_adapter *adap, u8 bypass)
{
	int ret;
	struct vp702x_device_state *st = adap->dev->priv;
	u8 *buf;

	mutex_lock(&st->buf_mutex);

	buf = st->buf;
	memset(buf, 0, 16);

	ret = vp702x_usb_in_op(adap->dev, 0xe0, (bypass << 8) | 0x0e,
			0, buf, 16);
	mutex_unlock(&st->buf_mutex);
	return ret;
}

static int vp702x_set_pld_state(struct dvb_usb_adapter *adap, u8 state)
{
	int ret;
	struct vp702x_device_state *st = adap->dev->priv;
	u8 *buf;

	mutex_lock(&st->buf_mutex);

	buf = st->buf;
	memset(buf, 0, 16);
	ret = vp702x_usb_in_op(adap->dev, 0xe0, (state << 8) | 0x0f,
			0, buf, 16);

	mutex_unlock(&st->buf_mutex);

	return ret;
}

static int vp702x_set_pid(struct dvb_usb_adapter *adap, u16 pid, u8 id, int onoff)
{
	struct vp702x_adapter_state *st = adap->priv;
	struct vp702x_device_state *dst = adap->dev->priv;
	u8 *buf;

	if (onoff)
		st->pid_filter_state |=  (1 << id);
	else {
		st->pid_filter_state &= ~(1 << id);
		pid = 0xffff;
	}

	id = 0x10 + id*2;

	vp702x_set_pld_state(adap, st->pid_filter_state);

	mutex_lock(&dst->buf_mutex);

	buf = dst->buf;
	memset(buf, 0, 16);
	vp702x_usb_in_op(adap->dev, 0xe0, (((pid >> 8) & 0xff) << 8) | (id), 0, buf, 16);
	vp702x_usb_in_op(adap->dev, 0xe0, (((pid     ) & 0xff) << 8) | (id+1), 0, buf, 16);

	mutex_unlock(&dst->buf_mutex);

	return 0;
}


static int vp702x_init_pid_filter(struct dvb_usb_adapter *adap)
{
	struct vp702x_adapter_state *st = adap->priv;
	struct vp702x_device_state *dst = adap->dev->priv;
	int i;
	u8 *b;

	st->pid_filter_count = 8;
	st->pid_filter_can_bypass = 1;
	st->pid_filter_state = 0x00;

	vp702x_set_pld_mode(adap, 1); /* bypass */

	for (i = 0; i < st->pid_filter_count; i++)
		vp702x_set_pid(adap, 0xffff, i, 1);

	mutex_lock(&dst->buf_mutex);
	b = dst->buf;
	memset(b, 0, 10);
	vp702x_usb_in_op(adap->dev, 0xb5, 3, 0, b, 10);
	vp702x_usb_in_op(adap->dev, 0xb5, 0, 0, b, 10);
	vp702x_usb_in_op(adap->dev, 0xb5, 1, 0, b, 10);
	mutex_unlock(&dst->buf_mutex);
	/*vp702x_set_pld_mode(d, 0); // filter */

	return 0;
}

static int vp702x_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
{
	return 0;
}

/* keys for the enclosed remote control */
static struct rc_map_table rc_map_vp702x_table[] = {
	{ 0x0001, KEY_1 },
	{ 0x0002, KEY_2 },
};

/* remote control stuff (does not work with my box) */
static int vp702x_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
{
/* remove the following return to enabled remote querying */
#if 0
	u8 *key;
	int i;

	key = kmalloc(10, GFP_KERNEL);
	if (!key)
		return -ENOMEM;

	vp702x_usb_in_op(d,READ_REMOTE_REQ,0,0,key,10);

	deb_rc("remote query key: %x %d\n",key[1],key[1]);

	if (key[1] == 0x44) {
		*state = REMOTE_NO_KEY_PRESSED;
		kfree(key);
		return 0;
	}

	for (i = 0; i < ARRAY_SIZE(rc_map_vp702x_table); i++)
		if (rc5_custom(&rc_map_vp702x_table[i]) == key[1]) {
			*state = REMOTE_KEY_PRESSED;
			*event = rc_map_vp702x_table[i].keycode;
			break;
		}
	kfree(key);
#endif

	return 0;
}


static int vp702x_read_mac_addr(struct dvb_usb_device *d,u8 mac[6])
{
	u8 i, *buf;
	struct vp702x_device_state *st = d->priv;

	mutex_lock(&st->buf_mutex);
	buf = st->buf;
	for (i = 6; i < 12; i++)
		vp702x_usb_in_op(d, READ_EEPROM_REQ, i, 1, &buf[i - 6], 1);

	memcpy(mac, buf, 6);
	mutex_unlock(&st->buf_mutex);
	return 0;
}

static int vp702x_frontend_attach(struct dvb_usb_adapter *adap)
{
	u8 buf[10] = { 0 };

	vp702x_usb_out_op(adap->dev, SET_TUNER_POWER_REQ, 0, 7, NULL, 0);

	if (vp702x_usb_inout_cmd(adap->dev, GET_SYSTEM_STRING, NULL, 0,
				   buf, 10, 10))
		return -EIO;

	buf[9] = '\0';
	info("system string: %s",&buf[1]);

	vp702x_init_pid_filter(adap);

	adap->fe_adap[0].fe = vp702x_fe_attach(adap->dev);
	vp702x_usb_out_op(adap->dev, SET_TUNER_POWER_REQ, 1, 7, NULL, 0);

	return 0;
}

static struct dvb_usb_device_properties vp702x_properties;

static int vp702x_usb_probe(struct usb_interface *intf,
		const struct usb_device_id *id)
{
	struct dvb_usb_device *d;
	struct vp702x_device_state *st;
	int ret;

	ret = dvb_usb_device_init(intf, &vp702x_properties,
				   THIS_MODULE, &d, adapter_nr);
	if (ret)
		goto out;

	st = d->priv;
	st->buf_len = 16;
	st->buf = kmalloc(st->buf_len, GFP_KERNEL);
	if (!st->buf) {
		ret = -ENOMEM;
		dvb_usb_device_exit(intf);
		goto out;
	}
	mutex_init(&st->buf_mutex);

out:
	return ret;

}

static void vp702x_usb_disconnect(struct usb_interface *intf)
{
	struct dvb_usb_device *d = usb_get_intfdata(intf);
	struct vp702x_device_state *st = d->priv;
	mutex_lock(&st->buf_mutex);
	kfree(st->buf);
	mutex_unlock(&st->buf_mutex);
	dvb_usb_device_exit(intf);
}

static struct usb_device_id vp702x_usb_table [] = {
	    { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_TWINHAN_VP7021_COLD) },
//	    { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_TWINHAN_VP7020_COLD) },
//	    { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_TWINHAN_VP7020_WARM) },
	    { 0 },
};
MODULE_DEVICE_TABLE(usb, vp702x_usb_table);

static struct dvb_usb_device_properties vp702x_properties = {
	.usb_ctrl = CYPRESS_FX2,
	.firmware            = "dvb-usb-vp702x-02.fw",
	.no_reconnect        = 1,

	.size_of_priv     = sizeof(struct vp702x_device_state),

	.num_adapters = 1,
	.adapter = {
		{
		.num_frontends = 1,
		.fe = {{
			.caps             = DVB_USB_ADAP_RECEIVES_204_BYTE_TS,

			.streaming_ctrl   = vp702x_streaming_ctrl,
			.frontend_attach  = vp702x_frontend_attach,

			/* parameter for the MPEG2-data transfer */
			.stream = {
				.type = USB_BULK,
				.count = 10,
				.endpoint = 0x02,
				.u = {
					.bulk = {
						.buffersize = 4096,
					}
				}
			},
		}},
			.size_of_priv     = sizeof(struct vp702x_adapter_state),
		}
	},
	.read_mac_address = vp702x_read_mac_addr,

	.rc.legacy = {
		.rc_map_table       = rc_map_vp702x_table,
		.rc_map_size  = ARRAY_SIZE(rc_map_vp702x_table),
		.rc_interval      = 400,
		.rc_query         = vp702x_rc_query,
	},

	.num_device_descs = 1,
	.devices = {
		{ .name = "TwinhanDTV StarBox DVB-S USB2.0 (VP7021)",
		  .cold_ids = { &vp702x_usb_table[0], NULL },
		  .warm_ids = { NULL },
		},
/*		{ .name = "TwinhanDTV StarBox DVB-S USB2.0 (VP7020)",
		  .cold_ids = { &vp702x_usb_table[2], NULL },
		  .warm_ids = { &vp702x_usb_table[3], NULL },
		},
*/		{ NULL },
	}
};

/* usb specific object needed to register this driver with the usb subsystem */
static struct usb_driver vp702x_usb_driver = {
	.name		= "dvb_usb_vp702x",
	.probe		= vp702x_usb_probe,
	.disconnect	= vp702x_usb_disconnect,
	.id_table	= vp702x_usb_table,
};

module_usb_driver(vp702x_usb_driver);

MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@posteo.de>");
MODULE_DESCRIPTION("Driver for Twinhan StarBox DVB-S USB2.0 and clones");
MODULE_VERSION("1.0");
MODULE_LICENSE("GPL");