xref: /openbmc/linux/drivers/media/pci/bt8xx/dst.c (revision 9cfc5c90)
1 /*
2 	Frontend/Card driver for TwinHan DST Frontend
3 	Copyright (C) 2003 Jamie Honan
4 	Copyright (C) 2004, 2005 Manu Abraham (manu@kromtek.com)
5 
6 	This program is free software; you can redistribute it and/or modify
7 	it under the terms of the GNU General Public License as published by
8 	the Free Software Foundation; either version 2 of the License, or
9 	(at your option) any later version.
10 
11 	This program is distributed in the hope that it will be useful,
12 	but WITHOUT ANY WARRANTY; without even the implied warranty of
13 	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 	GNU General Public License for more details.
15 
16 	You should have received a copy of the GNU General Public License
17 	along with this program; if not, write to the Free Software
18 	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 */
20 
21 #include <linux/kernel.h>
22 #include <linux/module.h>
23 #include <linux/init.h>
24 #include <linux/string.h>
25 #include <linux/slab.h>
26 #include <linux/vmalloc.h>
27 #include <linux/delay.h>
28 #include <asm/div64.h>
29 #include "dvb_frontend.h"
30 #include "dst_priv.h"
31 #include "dst_common.h"
32 
33 static unsigned int verbose = 1;
34 module_param(verbose, int, 0644);
35 MODULE_PARM_DESC(verbose, "verbose startup messages, default is 1 (yes)");
36 
37 static unsigned int dst_addons;
38 module_param(dst_addons, int, 0644);
39 MODULE_PARM_DESC(dst_addons, "CA daughterboard, default is 0 (No addons)");
40 
41 static unsigned int dst_algo;
42 module_param(dst_algo, int, 0644);
43 MODULE_PARM_DESC(dst_algo, "tuning algo: default is 0=(SW), 1=(HW)");
44 
45 #define HAS_LOCK		1
46 #define ATTEMPT_TUNE		2
47 #define HAS_POWER		4
48 
49 #define DST_ERROR		0
50 #define DST_NOTICE		1
51 #define DST_INFO		2
52 #define DST_DEBUG		3
53 
54 #define dprintk(x, y, z, format, arg...) do {				\
55 	if (z) {							\
56 		if	((x > DST_ERROR) && (x > y))			\
57 			printk(KERN_ERR "dst(%d) %s: " format "\n",	\
58 				state->bt->nr, __func__ , ##arg);	\
59 		else if	((x > DST_NOTICE) && (x > y))			\
60 			printk(KERN_NOTICE "dst(%d) %s: " format "\n",  \
61 				state->bt->nr, __func__ , ##arg);	\
62 		else if ((x > DST_INFO) && (x > y))			\
63 			printk(KERN_INFO "dst(%d) %s: " format "\n",	\
64 				state->bt->nr, __func__ , ##arg);	\
65 		else if ((x > DST_DEBUG) && (x > y))			\
66 			printk(KERN_DEBUG "dst(%d) %s: " format "\n",	\
67 				state->bt->nr,  __func__ , ##arg);	\
68 	} else {							\
69 		if (x > y)						\
70 			printk(format, ##arg);				\
71 	}								\
72 } while(0)
73 
74 static int dst_command(struct dst_state *state, u8 *data, u8 len);
75 
76 static void dst_packsize(struct dst_state *state, int psize)
77 {
78 	union dst_gpio_packet bits;
79 
80 	bits.psize = psize;
81 	bt878_device_control(state->bt, DST_IG_TS, &bits);
82 }
83 
84 static int dst_gpio_outb(struct dst_state *state, u32 mask, u32 enbb,
85 			 u32 outhigh, int delay)
86 {
87 	union dst_gpio_packet enb;
88 	union dst_gpio_packet bits;
89 	int err;
90 
91 	enb.enb.mask = mask;
92 	enb.enb.enable = enbb;
93 
94 	dprintk(verbose, DST_INFO, 1, "mask=[%04x], enbb=[%04x], outhigh=[%04x]", mask, enbb, outhigh);
95 	if ((err = bt878_device_control(state->bt, DST_IG_ENABLE, &enb)) < 0) {
96 		dprintk(verbose, DST_INFO, 1, "dst_gpio_enb error (err == %i, mask == %02x, enb == %02x)", err, mask, enbb);
97 		return -EREMOTEIO;
98 	}
99 	udelay(1000);
100 	/* because complete disabling means no output, no need to do output packet */
101 	if (enbb == 0)
102 		return 0;
103 	if (delay)
104 		msleep(10);
105 	bits.outp.mask = enbb;
106 	bits.outp.highvals = outhigh;
107 	if ((err = bt878_device_control(state->bt, DST_IG_WRITE, &bits)) < 0) {
108 		dprintk(verbose, DST_INFO, 1, "dst_gpio_outb error (err == %i, enbb == %02x, outhigh == %02x)", err, enbb, outhigh);
109 		return -EREMOTEIO;
110 	}
111 
112 	return 0;
113 }
114 
115 static int dst_gpio_inb(struct dst_state *state, u8 *result)
116 {
117 	union dst_gpio_packet rd_packet;
118 	int err;
119 
120 	*result = 0;
121 	if ((err = bt878_device_control(state->bt, DST_IG_READ, &rd_packet)) < 0) {
122 		dprintk(verbose, DST_ERROR, 1, "dst_gpio_inb error (err == %i)", err);
123 		return -EREMOTEIO;
124 	}
125 	*result = (u8) rd_packet.rd.value;
126 
127 	return 0;
128 }
129 
130 int rdc_reset_state(struct dst_state *state)
131 {
132 	dprintk(verbose, DST_INFO, 1, "Resetting state machine");
133 	if (dst_gpio_outb(state, RDC_8820_INT, RDC_8820_INT, 0, NO_DELAY) < 0) {
134 		dprintk(verbose, DST_ERROR, 1, "dst_gpio_outb ERROR !");
135 		return -1;
136 	}
137 	msleep(10);
138 	if (dst_gpio_outb(state, RDC_8820_INT, RDC_8820_INT, RDC_8820_INT, NO_DELAY) < 0) {
139 		dprintk(verbose, DST_ERROR, 1, "dst_gpio_outb ERROR !");
140 		msleep(10);
141 		return -1;
142 	}
143 
144 	return 0;
145 }
146 EXPORT_SYMBOL(rdc_reset_state);
147 
148 static int rdc_8820_reset(struct dst_state *state)
149 {
150 	dprintk(verbose, DST_DEBUG, 1, "Resetting DST");
151 	if (dst_gpio_outb(state, RDC_8820_RESET, RDC_8820_RESET, 0, NO_DELAY) < 0) {
152 		dprintk(verbose, DST_ERROR, 1, "dst_gpio_outb ERROR !");
153 		return -1;
154 	}
155 	udelay(1000);
156 	if (dst_gpio_outb(state, RDC_8820_RESET, RDC_8820_RESET, RDC_8820_RESET, DELAY) < 0) {
157 		dprintk(verbose, DST_ERROR, 1, "dst_gpio_outb ERROR !");
158 		return -1;
159 	}
160 
161 	return 0;
162 }
163 
164 static int dst_pio_enable(struct dst_state *state)
165 {
166 	if (dst_gpio_outb(state, ~0, RDC_8820_PIO_0_ENABLE, 0, NO_DELAY) < 0) {
167 		dprintk(verbose, DST_ERROR, 1, "dst_gpio_outb ERROR !");
168 		return -1;
169 	}
170 	udelay(1000);
171 
172 	return 0;
173 }
174 
175 int dst_pio_disable(struct dst_state *state)
176 {
177 	if (dst_gpio_outb(state, ~0, RDC_8820_PIO_0_DISABLE, RDC_8820_PIO_0_DISABLE, NO_DELAY) < 0) {
178 		dprintk(verbose, DST_ERROR, 1, "dst_gpio_outb ERROR !");
179 		return -1;
180 	}
181 	if (state->type_flags & DST_TYPE_HAS_FW_1)
182 		udelay(1000);
183 
184 	return 0;
185 }
186 EXPORT_SYMBOL(dst_pio_disable);
187 
188 int dst_wait_dst_ready(struct dst_state *state, u8 delay_mode)
189 {
190 	u8 reply;
191 	int i;
192 
193 	for (i = 0; i < 200; i++) {
194 		if (dst_gpio_inb(state, &reply) < 0) {
195 			dprintk(verbose, DST_ERROR, 1, "dst_gpio_inb ERROR !");
196 			return -1;
197 		}
198 		if ((reply & RDC_8820_PIO_0_ENABLE) == 0) {
199 			dprintk(verbose, DST_INFO, 1, "dst wait ready after %d", i);
200 			return 1;
201 		}
202 		msleep(10);
203 	}
204 	dprintk(verbose, DST_NOTICE, 1, "dst wait NOT ready after %d", i);
205 
206 	return 0;
207 }
208 EXPORT_SYMBOL(dst_wait_dst_ready);
209 
210 int dst_error_recovery(struct dst_state *state)
211 {
212 	dprintk(verbose, DST_NOTICE, 1, "Trying to return from previous errors.");
213 	dst_pio_disable(state);
214 	msleep(10);
215 	dst_pio_enable(state);
216 	msleep(10);
217 
218 	return 0;
219 }
220 EXPORT_SYMBOL(dst_error_recovery);
221 
222 int dst_error_bailout(struct dst_state *state)
223 {
224 	dprintk(verbose, DST_INFO, 1, "Trying to bailout from previous error.");
225 	rdc_8820_reset(state);
226 	dst_pio_disable(state);
227 	msleep(10);
228 
229 	return 0;
230 }
231 EXPORT_SYMBOL(dst_error_bailout);
232 
233 int dst_comm_init(struct dst_state *state)
234 {
235 	dprintk(verbose, DST_INFO, 1, "Initializing DST.");
236 	if ((dst_pio_enable(state)) < 0) {
237 		dprintk(verbose, DST_ERROR, 1, "PIO Enable Failed");
238 		return -1;
239 	}
240 	if ((rdc_reset_state(state)) < 0) {
241 		dprintk(verbose, DST_ERROR, 1, "RDC 8820 State RESET Failed.");
242 		return -1;
243 	}
244 	if (state->type_flags & DST_TYPE_HAS_FW_1)
245 		msleep(100);
246 	else
247 		msleep(5);
248 
249 	return 0;
250 }
251 EXPORT_SYMBOL(dst_comm_init);
252 
253 int write_dst(struct dst_state *state, u8 *data, u8 len)
254 {
255 	struct i2c_msg msg = {
256 		.addr = state->config->demod_address,
257 		.flags = 0,
258 		.buf = data,
259 		.len = len
260 	};
261 
262 	int err;
263 	u8 cnt, i;
264 
265 	dprintk(verbose, DST_NOTICE, 0, "writing [ ");
266 	for (i = 0; i < len; i++)
267 		dprintk(verbose, DST_NOTICE, 0, "%02x ", data[i]);
268 	dprintk(verbose, DST_NOTICE, 0, "]\n");
269 
270 	for (cnt = 0; cnt < 2; cnt++) {
271 		if ((err = i2c_transfer(state->i2c, &msg, 1)) < 0) {
272 			dprintk(verbose, DST_INFO, 1, "_write_dst error (err == %i, len == 0x%02x, b0 == 0x%02x)", err, len, data[0]);
273 			dst_error_recovery(state);
274 			continue;
275 		} else
276 			break;
277 	}
278 	if (cnt >= 2) {
279 		dprintk(verbose, DST_INFO, 1, "RDC 8820 RESET");
280 		dst_error_bailout(state);
281 
282 		return -1;
283 	}
284 
285 	return 0;
286 }
287 EXPORT_SYMBOL(write_dst);
288 
289 int read_dst(struct dst_state *state, u8 *ret, u8 len)
290 {
291 	struct i2c_msg msg = {
292 		.addr = state->config->demod_address,
293 		.flags = I2C_M_RD,
294 		.buf = ret,
295 		.len = len
296 	};
297 
298 	int err;
299 	int cnt;
300 
301 	for (cnt = 0; cnt < 2; cnt++) {
302 		if ((err = i2c_transfer(state->i2c, &msg, 1)) < 0) {
303 			dprintk(verbose, DST_INFO, 1, "read_dst error (err == %i, len == 0x%02x, b0 == 0x%02x)", err, len, ret[0]);
304 			dst_error_recovery(state);
305 			continue;
306 		} else
307 			break;
308 	}
309 	if (cnt >= 2) {
310 		dprintk(verbose, DST_INFO, 1, "RDC 8820 RESET");
311 		dst_error_bailout(state);
312 
313 		return -1;
314 	}
315 	dprintk(verbose, DST_DEBUG, 1, "reply is 0x%x", ret[0]);
316 	for (err = 1; err < len; err++)
317 		dprintk(verbose, DST_DEBUG, 0, " 0x%x", ret[err]);
318 	if (err > 1)
319 		dprintk(verbose, DST_DEBUG, 0, "\n");
320 
321 	return 0;
322 }
323 EXPORT_SYMBOL(read_dst);
324 
325 static int dst_set_polarization(struct dst_state *state)
326 {
327 	switch (state->voltage) {
328 	case SEC_VOLTAGE_13:	/*	Vertical	*/
329 		dprintk(verbose, DST_INFO, 1, "Polarization=[Vertical]");
330 		state->tx_tuna[8] &= ~0x40;
331 		break;
332 	case SEC_VOLTAGE_18:	/*	Horizontal	*/
333 		dprintk(verbose, DST_INFO, 1, "Polarization=[Horizontal]");
334 		state->tx_tuna[8] |= 0x40;
335 		break;
336 	case SEC_VOLTAGE_OFF:
337 		break;
338 	}
339 
340 	return 0;
341 }
342 
343 static int dst_set_freq(struct dst_state *state, u32 freq)
344 {
345 	state->frequency = freq;
346 	dprintk(verbose, DST_INFO, 1, "set Frequency %u", freq);
347 
348 	if (state->dst_type == DST_TYPE_IS_SAT) {
349 		freq = freq / 1000;
350 		if (freq < 950 || freq > 2150)
351 			return -EINVAL;
352 		state->tx_tuna[2] = (freq >> 8);
353 		state->tx_tuna[3] = (u8) freq;
354 		state->tx_tuna[4] = 0x01;
355 		state->tx_tuna[8] &= ~0x04;
356 		if (state->type_flags & DST_TYPE_HAS_OBS_REGS) {
357 			if (freq < 1531)
358 				state->tx_tuna[8] |= 0x04;
359 		}
360 	} else if (state->dst_type == DST_TYPE_IS_TERR) {
361 		freq = freq / 1000;
362 		if (freq < 137000 || freq > 858000)
363 			return -EINVAL;
364 		state->tx_tuna[2] = (freq >> 16) & 0xff;
365 		state->tx_tuna[3] = (freq >> 8) & 0xff;
366 		state->tx_tuna[4] = (u8) freq;
367 	} else if (state->dst_type == DST_TYPE_IS_CABLE) {
368 		freq = freq / 1000;
369 		state->tx_tuna[2] = (freq >> 16) & 0xff;
370 		state->tx_tuna[3] = (freq >> 8) & 0xff;
371 		state->tx_tuna[4] = (u8) freq;
372 	} else if (state->dst_type == DST_TYPE_IS_ATSC) {
373 		freq = freq / 1000;
374 		if (freq < 51000 || freq > 858000)
375 			return -EINVAL;
376 		state->tx_tuna[2] = (freq >> 16) & 0xff;
377 		state->tx_tuna[3] = (freq >>  8) & 0xff;
378 		state->tx_tuna[4] = (u8) freq;
379 		state->tx_tuna[5] = 0x00;		/*	ATSC	*/
380 		state->tx_tuna[6] = 0x00;
381 		if (state->dst_hw_cap & DST_TYPE_HAS_ANALOG)
382 			state->tx_tuna[7] = 0x00;	/*	Digital	*/
383 	} else
384 		return -EINVAL;
385 
386 	return 0;
387 }
388 
389 static int dst_set_bandwidth(struct dst_state *state, u32 bandwidth)
390 {
391 	state->bandwidth = bandwidth;
392 
393 	if (state->dst_type != DST_TYPE_IS_TERR)
394 		return -EOPNOTSUPP;
395 
396 	switch (bandwidth) {
397 	case 6000000:
398 		if (state->dst_hw_cap & DST_TYPE_HAS_CA)
399 			state->tx_tuna[7] = 0x06;
400 		else {
401 			state->tx_tuna[6] = 0x06;
402 			state->tx_tuna[7] = 0x00;
403 		}
404 		break;
405 	case 7000000:
406 		if (state->dst_hw_cap & DST_TYPE_HAS_CA)
407 			state->tx_tuna[7] = 0x07;
408 		else {
409 			state->tx_tuna[6] = 0x07;
410 			state->tx_tuna[7] = 0x00;
411 		}
412 		break;
413 	case 8000000:
414 		if (state->dst_hw_cap & DST_TYPE_HAS_CA)
415 			state->tx_tuna[7] = 0x08;
416 		else {
417 			state->tx_tuna[6] = 0x08;
418 			state->tx_tuna[7] = 0x00;
419 		}
420 		break;
421 	default:
422 		return -EINVAL;
423 	}
424 
425 	return 0;
426 }
427 
428 static int dst_set_inversion(struct dst_state *state,
429 			     enum fe_spectral_inversion inversion)
430 {
431 	state->inversion = inversion;
432 	switch (inversion) {
433 	case INVERSION_OFF:	/*	Inversion = Normal	*/
434 		state->tx_tuna[8] &= ~0x80;
435 		break;
436 	case INVERSION_ON:
437 		state->tx_tuna[8] |= 0x80;
438 		break;
439 	default:
440 		return -EINVAL;
441 	}
442 
443 	return 0;
444 }
445 
446 static int dst_set_fec(struct dst_state *state, enum fe_code_rate fec)
447 {
448 	state->fec = fec;
449 	return 0;
450 }
451 
452 static enum fe_code_rate dst_get_fec(struct dst_state *state)
453 {
454 	return state->fec;
455 }
456 
457 static int dst_set_symbolrate(struct dst_state *state, u32 srate)
458 {
459 	u32 symcalc;
460 	u64 sval;
461 
462 	state->symbol_rate = srate;
463 	if (state->dst_type == DST_TYPE_IS_TERR) {
464 		return -EOPNOTSUPP;
465 	}
466 	dprintk(verbose, DST_INFO, 1, "set symrate %u", srate);
467 	srate /= 1000;
468 	if (state->dst_type == DST_TYPE_IS_SAT) {
469 		if (state->type_flags & DST_TYPE_HAS_SYMDIV) {
470 			sval = srate;
471 			sval <<= 20;
472 			do_div(sval, 88000);
473 			symcalc = (u32) sval;
474 			dprintk(verbose, DST_INFO, 1, "set symcalc %u", symcalc);
475 			state->tx_tuna[5] = (u8) (symcalc >> 12);
476 			state->tx_tuna[6] = (u8) (symcalc >> 4);
477 			state->tx_tuna[7] = (u8) (symcalc << 4);
478 		} else {
479 			state->tx_tuna[5] = (u8) (srate >> 16) & 0x7f;
480 			state->tx_tuna[6] = (u8) (srate >> 8);
481 			state->tx_tuna[7] = (u8) srate;
482 		}
483 		state->tx_tuna[8] &= ~0x20;
484 		if (state->type_flags & DST_TYPE_HAS_OBS_REGS) {
485 			if (srate > 8000)
486 				state->tx_tuna[8] |= 0x20;
487 		}
488 	} else if (state->dst_type == DST_TYPE_IS_CABLE) {
489 		dprintk(verbose, DST_DEBUG, 1, "%s", state->fw_name);
490 		if (!strncmp(state->fw_name, "DCTNEW", 6)) {
491 			state->tx_tuna[5] = (u8) (srate >> 8);
492 			state->tx_tuna[6] = (u8) srate;
493 			state->tx_tuna[7] = 0x00;
494 		} else if (!strncmp(state->fw_name, "DCT-CI", 6)) {
495 			state->tx_tuna[5] = 0x00;
496 			state->tx_tuna[6] = (u8) (srate >> 8);
497 			state->tx_tuna[7] = (u8) srate;
498 		}
499 	}
500 	return 0;
501 }
502 
503 static int dst_set_modulation(struct dst_state *state,
504 			      enum fe_modulation modulation)
505 {
506 	if (state->dst_type != DST_TYPE_IS_CABLE)
507 		return -EOPNOTSUPP;
508 
509 	state->modulation = modulation;
510 	switch (modulation) {
511 	case QAM_16:
512 		state->tx_tuna[8] = 0x10;
513 		break;
514 	case QAM_32:
515 		state->tx_tuna[8] = 0x20;
516 		break;
517 	case QAM_64:
518 		state->tx_tuna[8] = 0x40;
519 		break;
520 	case QAM_128:
521 		state->tx_tuna[8] = 0x80;
522 		break;
523 	case QAM_256:
524 		if (!strncmp(state->fw_name, "DCTNEW", 6))
525 			state->tx_tuna[8] = 0xff;
526 		else if (!strncmp(state->fw_name, "DCT-CI", 6))
527 			state->tx_tuna[8] = 0x00;
528 		break;
529 	case QPSK:
530 	case QAM_AUTO:
531 	case VSB_8:
532 	case VSB_16:
533 	default:
534 		return -EINVAL;
535 
536 	}
537 
538 	return 0;
539 }
540 
541 static enum fe_modulation dst_get_modulation(struct dst_state *state)
542 {
543 	return state->modulation;
544 }
545 
546 
547 u8 dst_check_sum(u8 *buf, u32 len)
548 {
549 	u32 i;
550 	u8 val = 0;
551 	if (!len)
552 		return 0;
553 	for (i = 0; i < len; i++) {
554 		val += buf[i];
555 	}
556 	return ((~val) + 1);
557 }
558 EXPORT_SYMBOL(dst_check_sum);
559 
560 static void dst_type_flags_print(struct dst_state *state)
561 {
562 	u32 type_flags = state->type_flags;
563 
564 	dprintk(verbose, DST_ERROR, 0, "DST type flags :");
565 	if (type_flags & DST_TYPE_HAS_TS188)
566 		dprintk(verbose, DST_ERROR, 0, " 0x%x newtuner", DST_TYPE_HAS_TS188);
567 	if (type_flags & DST_TYPE_HAS_NEWTUNE_2)
568 		dprintk(verbose, DST_ERROR, 0, " 0x%x newtuner 2", DST_TYPE_HAS_NEWTUNE_2);
569 	if (type_flags & DST_TYPE_HAS_TS204)
570 		dprintk(verbose, DST_ERROR, 0, " 0x%x ts204", DST_TYPE_HAS_TS204);
571 	if (type_flags & DST_TYPE_HAS_VLF)
572 		dprintk(verbose, DST_ERROR, 0, " 0x%x VLF", DST_TYPE_HAS_VLF);
573 	if (type_flags & DST_TYPE_HAS_SYMDIV)
574 		dprintk(verbose, DST_ERROR, 0, " 0x%x symdiv", DST_TYPE_HAS_SYMDIV);
575 	if (type_flags & DST_TYPE_HAS_FW_1)
576 		dprintk(verbose, DST_ERROR, 0, " 0x%x firmware version = 1", DST_TYPE_HAS_FW_1);
577 	if (type_flags & DST_TYPE_HAS_FW_2)
578 		dprintk(verbose, DST_ERROR, 0, " 0x%x firmware version = 2", DST_TYPE_HAS_FW_2);
579 	if (type_flags & DST_TYPE_HAS_FW_3)
580 		dprintk(verbose, DST_ERROR, 0, " 0x%x firmware version = 3", DST_TYPE_HAS_FW_3);
581 	dprintk(verbose, DST_ERROR, 0, "\n");
582 }
583 
584 
585 static int dst_type_print(struct dst_state *state, u8 type)
586 {
587 	char *otype;
588 	switch (type) {
589 	case DST_TYPE_IS_SAT:
590 		otype = "satellite";
591 		break;
592 
593 	case DST_TYPE_IS_TERR:
594 		otype = "terrestrial";
595 		break;
596 
597 	case DST_TYPE_IS_CABLE:
598 		otype = "cable";
599 		break;
600 
601 	case DST_TYPE_IS_ATSC:
602 		otype = "atsc";
603 		break;
604 
605 	default:
606 		dprintk(verbose, DST_INFO, 1, "invalid dst type %d", type);
607 		return -EINVAL;
608 	}
609 	dprintk(verbose, DST_INFO, 1, "DST type: %s", otype);
610 
611 	return 0;
612 }
613 
614 static struct tuner_types tuner_list[] = {
615 	{
616 		.tuner_type = TUNER_TYPE_L64724,
617 		.tuner_name = "L 64724",
618 		.board_name = "UNKNOWN",
619 		.fw_name    = "UNKNOWN"
620 	},
621 
622 	{
623 		.tuner_type = TUNER_TYPE_STV0299,
624 		.tuner_name = "STV 0299",
625 		.board_name = "VP1020",
626 		.fw_name    = "DST-MOT"
627 	},
628 
629 	{
630 		.tuner_type = TUNER_TYPE_STV0299,
631 		.tuner_name = "STV 0299",
632 		.board_name = "VP1020",
633 		.fw_name    = "DST-03T"
634 	},
635 
636 	{
637 		.tuner_type = TUNER_TYPE_MB86A15,
638 		.tuner_name = "MB 86A15",
639 		.board_name = "VP1022",
640 		.fw_name    = "DST-03T"
641 	},
642 
643 	{
644 		.tuner_type = TUNER_TYPE_MB86A15,
645 		.tuner_name = "MB 86A15",
646 		.board_name = "VP1025",
647 		.fw_name    = "DST-03T"
648 	},
649 
650 	{
651 		.tuner_type = TUNER_TYPE_STV0299,
652 		.tuner_name = "STV 0299",
653 		.board_name = "VP1030",
654 		.fw_name    = "DST-CI"
655 	},
656 
657 	{
658 		.tuner_type = TUNER_TYPE_STV0299,
659 		.tuner_name = "STV 0299",
660 		.board_name = "VP1030",
661 		.fw_name    = "DSTMCI"
662 	},
663 
664 	{
665 		.tuner_type = TUNER_TYPE_UNKNOWN,
666 		.tuner_name = "UNKNOWN",
667 		.board_name = "VP2021",
668 		.fw_name    = "DCTNEW"
669 	},
670 
671 	{
672 		.tuner_type = TUNER_TYPE_UNKNOWN,
673 		.tuner_name = "UNKNOWN",
674 		.board_name = "VP2030",
675 		.fw_name    = "DCT-CI"
676 	},
677 
678 	{
679 		.tuner_type = TUNER_TYPE_UNKNOWN,
680 		.tuner_name = "UNKNOWN",
681 		.board_name = "VP2031",
682 		.fw_name    = "DCT-CI"
683 	},
684 
685 	{
686 		.tuner_type = TUNER_TYPE_UNKNOWN,
687 		.tuner_name = "UNKNOWN",
688 		.board_name = "VP2040",
689 		.fw_name    = "DCT-CI"
690 	},
691 
692 	{
693 		.tuner_type = TUNER_TYPE_UNKNOWN,
694 		.tuner_name = "UNKNOWN",
695 		.board_name = "VP3020",
696 		.fw_name    = "DTTFTA"
697 	},
698 
699 	{
700 		.tuner_type = TUNER_TYPE_UNKNOWN,
701 		.tuner_name = "UNKNOWN",
702 		.board_name = "VP3021",
703 		.fw_name    = "DTTFTA"
704 	},
705 
706 	{
707 		.tuner_type = TUNER_TYPE_TDA10046,
708 		.tuner_name = "TDA10046",
709 		.board_name = "VP3040",
710 		.fw_name    = "DTT-CI"
711 	},
712 
713 	{
714 		.tuner_type = TUNER_TYPE_UNKNOWN,
715 		.tuner_name = "UNKNOWN",
716 		.board_name = "VP3051",
717 		.fw_name    = "DTTNXT"
718 	},
719 
720 	{
721 		.tuner_type = TUNER_TYPE_NXT200x,
722 		.tuner_name = "NXT200x",
723 		.board_name = "VP3220",
724 		.fw_name    = "ATSCDI"
725 	},
726 
727 	{
728 		.tuner_type = TUNER_TYPE_NXT200x,
729 		.tuner_name = "NXT200x",
730 		.board_name = "VP3250",
731 		.fw_name    = "ATSCAD"
732 	},
733 };
734 
735 /*
736 	Known cards list
737 	Satellite
738 	-------------------
739 		  200103A
740 	VP-1020   DST-MOT	LG(old), TS=188
741 
742 	VP-1020   DST-03T	LG(new), TS=204
743 	VP-1022   DST-03T	LG(new), TS=204
744 	VP-1025   DST-03T	LG(new), TS=204
745 
746 	VP-1030   DSTMCI,	LG(new), TS=188
747 	VP-1032   DSTMCI,	LG(new), TS=188
748 
749 	Cable
750 	-------------------
751 	VP-2030   DCT-CI,	Samsung, TS=204
752 	VP-2021   DCT-CI,	Unknown, TS=204
753 	VP-2031   DCT-CI,	Philips, TS=188
754 	VP-2040   DCT-CI,	Philips, TS=188, with CA daughter board
755 	VP-2040   DCT-CI,	Philips, TS=204, without CA daughter board
756 
757 	Terrestrial
758 	-------------------
759 	VP-3050  DTTNXT			 TS=188
760 	VP-3040  DTT-CI,	Philips, TS=188
761 	VP-3040  DTT-CI,	Philips, TS=204
762 
763 	ATSC
764 	-------------------
765 	VP-3220  ATSCDI,		 TS=188
766 	VP-3250  ATSCAD,		 TS=188
767 
768 */
769 
770 static struct dst_types dst_tlist[] = {
771 	{
772 		.device_id = "200103A",
773 		.offset = 0,
774 		.dst_type =  DST_TYPE_IS_SAT,
775 		.type_flags = DST_TYPE_HAS_SYMDIV | DST_TYPE_HAS_FW_1 | DST_TYPE_HAS_OBS_REGS,
776 		.dst_feature = 0,
777 		.tuner_type = 0
778 	},	/*	obsolete	*/
779 
780 	{
781 		.device_id = "DST-020",
782 		.offset = 0,
783 		.dst_type =  DST_TYPE_IS_SAT,
784 		.type_flags = DST_TYPE_HAS_SYMDIV | DST_TYPE_HAS_FW_1,
785 		.dst_feature = 0,
786 		.tuner_type = 0
787 	},	/*	obsolete	*/
788 
789 	{
790 		.device_id = "DST-030",
791 		.offset =  0,
792 		.dst_type = DST_TYPE_IS_SAT,
793 		.type_flags = DST_TYPE_HAS_TS204 | DST_TYPE_HAS_TS188 | DST_TYPE_HAS_FW_1,
794 		.dst_feature = 0,
795 		.tuner_type = 0
796 	},	/*	obsolete	*/
797 
798 	{
799 		.device_id = "DST-03T",
800 		.offset = 0,
801 		.dst_type = DST_TYPE_IS_SAT,
802 		.type_flags = DST_TYPE_HAS_SYMDIV | DST_TYPE_HAS_TS204 | DST_TYPE_HAS_FW_2,
803 		.dst_feature = DST_TYPE_HAS_DISEQC3 | DST_TYPE_HAS_DISEQC4 | DST_TYPE_HAS_DISEQC5
804 							 | DST_TYPE_HAS_MAC | DST_TYPE_HAS_MOTO,
805 		.tuner_type = TUNER_TYPE_MULTI
806 	 },
807 
808 	{
809 		.device_id = "DST-MOT",
810 		.offset =  0,
811 		.dst_type = DST_TYPE_IS_SAT,
812 		.type_flags = DST_TYPE_HAS_SYMDIV | DST_TYPE_HAS_FW_1,
813 		.dst_feature = 0,
814 		.tuner_type = 0
815 	},	/*	obsolete	*/
816 
817 	{
818 		.device_id = "DST-CI",
819 		.offset = 1,
820 		.dst_type = DST_TYPE_IS_SAT,
821 		.type_flags = DST_TYPE_HAS_TS204 | DST_TYPE_HAS_FW_1,
822 		.dst_feature = DST_TYPE_HAS_CA,
823 		.tuner_type = 0
824 	},	/*	An OEM board	*/
825 
826 	{
827 		.device_id = "DSTMCI",
828 		.offset = 1,
829 		.dst_type = DST_TYPE_IS_SAT,
830 		.type_flags = DST_TYPE_HAS_TS188 | DST_TYPE_HAS_FW_2 | DST_TYPE_HAS_FW_BUILD | DST_TYPE_HAS_INC_COUNT | DST_TYPE_HAS_VLF,
831 		.dst_feature = DST_TYPE_HAS_CA | DST_TYPE_HAS_DISEQC3 | DST_TYPE_HAS_DISEQC4
832 							| DST_TYPE_HAS_MOTO | DST_TYPE_HAS_MAC,
833 		.tuner_type = TUNER_TYPE_MULTI
834 	},
835 
836 	{
837 		.device_id = "DSTFCI",
838 		.offset = 1,
839 		.dst_type = DST_TYPE_IS_SAT,
840 		.type_flags = DST_TYPE_HAS_TS188 | DST_TYPE_HAS_FW_1,
841 		.dst_feature = 0,
842 		.tuner_type = 0
843 	},	/* unknown to vendor	*/
844 
845 	{
846 		.device_id = "DCT-CI",
847 		.offset = 1,
848 		.dst_type = DST_TYPE_IS_CABLE,
849 		.type_flags = DST_TYPE_HAS_MULTI_FE | DST_TYPE_HAS_FW_1	| DST_TYPE_HAS_FW_2 | DST_TYPE_HAS_VLF,
850 		.dst_feature = DST_TYPE_HAS_CA,
851 		.tuner_type = 0
852 	},
853 
854 	{
855 		.device_id = "DCTNEW",
856 		.offset = 1,
857 		.dst_type = DST_TYPE_IS_CABLE,
858 		.type_flags = DST_TYPE_HAS_TS188 | DST_TYPE_HAS_FW_3 | DST_TYPE_HAS_FW_BUILD | DST_TYPE_HAS_MULTI_FE,
859 		.dst_feature = 0,
860 		.tuner_type = 0
861 	},
862 
863 	{
864 		.device_id = "DTT-CI",
865 		.offset = 1,
866 		.dst_type = DST_TYPE_IS_TERR,
867 		.type_flags = DST_TYPE_HAS_FW_2 | DST_TYPE_HAS_MULTI_FE | DST_TYPE_HAS_VLF,
868 		.dst_feature = DST_TYPE_HAS_CA,
869 		.tuner_type = 0
870 	},
871 
872 	{
873 		.device_id = "DTTDIG",
874 		.offset = 1,
875 		.dst_type = DST_TYPE_IS_TERR,
876 		.type_flags = DST_TYPE_HAS_FW_2,
877 		.dst_feature = 0,
878 		.tuner_type = 0
879 	},
880 
881 	{
882 		.device_id = "DTTNXT",
883 		.offset = 1,
884 		.dst_type = DST_TYPE_IS_TERR,
885 		.type_flags = DST_TYPE_HAS_FW_2,
886 		.dst_feature = DST_TYPE_HAS_ANALOG,
887 		.tuner_type = 0
888 	},
889 
890 	{
891 		.device_id = "ATSCDI",
892 		.offset = 1,
893 		.dst_type = DST_TYPE_IS_ATSC,
894 		.type_flags = DST_TYPE_HAS_FW_2,
895 		.dst_feature = 0,
896 		.tuner_type = 0
897 	},
898 
899 	{
900 		.device_id = "ATSCAD",
901 		.offset = 1,
902 		.dst_type = DST_TYPE_IS_ATSC,
903 		.type_flags = DST_TYPE_HAS_MULTI_FE | DST_TYPE_HAS_FW_2 | DST_TYPE_HAS_FW_BUILD,
904 		.dst_feature = DST_TYPE_HAS_MAC | DST_TYPE_HAS_ANALOG,
905 		.tuner_type = 0
906 	},
907 
908 	{ }
909 
910 };
911 
912 static int dst_get_mac(struct dst_state *state)
913 {
914 	u8 get_mac[] = { 0x00, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
915 	get_mac[7] = dst_check_sum(get_mac, 7);
916 	if (dst_command(state, get_mac, 8) < 0) {
917 		dprintk(verbose, DST_INFO, 1, "Unsupported Command");
918 		return -1;
919 	}
920 	memset(&state->mac_address, '\0', 8);
921 	memcpy(&state->mac_address, &state->rxbuffer, 6);
922 	dprintk(verbose, DST_ERROR, 1, "MAC Address=[%pM]", state->mac_address);
923 
924 	return 0;
925 }
926 
927 static int dst_fw_ver(struct dst_state *state)
928 {
929 	u8 get_ver[] = { 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
930 	get_ver[7] = dst_check_sum(get_ver, 7);
931 	if (dst_command(state, get_ver, 8) < 0) {
932 		dprintk(verbose, DST_INFO, 1, "Unsupported Command");
933 		return -1;
934 	}
935 	memcpy(&state->fw_version, &state->rxbuffer, 8);
936 	dprintk(verbose, DST_ERROR, 1, "Firmware Ver = %x.%x Build = %02x, on %x:%x, %x-%x-20%02x",
937 		state->fw_version[0] >> 4, state->fw_version[0] & 0x0f,
938 		state->fw_version[1],
939 		state->fw_version[5], state->fw_version[6],
940 		state->fw_version[4], state->fw_version[3], state->fw_version[2]);
941 
942 	return 0;
943 }
944 
945 static int dst_card_type(struct dst_state *state)
946 {
947 	int j;
948 	struct tuner_types *p_tuner_list = NULL;
949 
950 	u8 get_type[] = { 0x00, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
951 	get_type[7] = dst_check_sum(get_type, 7);
952 	if (dst_command(state, get_type, 8) < 0) {
953 		dprintk(verbose, DST_INFO, 1, "Unsupported Command");
954 		return -1;
955 	}
956 	memset(&state->card_info, '\0', 8);
957 	memcpy(&state->card_info, &state->rxbuffer, 7);
958 	dprintk(verbose, DST_ERROR, 1, "Device Model=[%s]", &state->card_info[0]);
959 
960 	for (j = 0, p_tuner_list = tuner_list; j < ARRAY_SIZE(tuner_list); j++, p_tuner_list++) {
961 		if (!strcmp(&state->card_info[0], p_tuner_list->board_name)) {
962 			state->tuner_type = p_tuner_list->tuner_type;
963 			dprintk(verbose, DST_ERROR, 1, "DST has [%s] tuner, tuner type=[%d]",
964 				p_tuner_list->tuner_name, p_tuner_list->tuner_type);
965 		}
966 	}
967 
968 	return 0;
969 }
970 
971 static int dst_get_vendor(struct dst_state *state)
972 {
973 	u8 get_vendor[] = { 0x00, 0x12, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
974 	get_vendor[7] = dst_check_sum(get_vendor, 7);
975 	if (dst_command(state, get_vendor, 8) < 0) {
976 		dprintk(verbose, DST_INFO, 1, "Unsupported Command");
977 		return -1;
978 	}
979 	memset(&state->vendor, '\0', 8);
980 	memcpy(&state->vendor, &state->rxbuffer, 7);
981 	dprintk(verbose, DST_ERROR, 1, "Vendor=[%s]", &state->vendor[0]);
982 
983 	return 0;
984 }
985 
986 static void debug_dst_buffer(struct dst_state *state)
987 {
988 	int i;
989 
990 	if (verbose > 2) {
991 		printk("%s: [", __func__);
992 		for (i = 0; i < 8; i++)
993 			printk(" %02x", state->rxbuffer[i]);
994 		printk("]\n");
995 	}
996 }
997 
998 static int dst_check_stv0299(struct dst_state *state)
999 {
1000 	u8 check_stv0299[] = { 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
1001 
1002 	check_stv0299[7] = dst_check_sum(check_stv0299, 7);
1003 	if (dst_command(state, check_stv0299, 8) < 0) {
1004 		dprintk(verbose, DST_ERROR, 1, "Cmd=[0x04] failed");
1005 		return -1;
1006 	}
1007 	debug_dst_buffer(state);
1008 
1009 	if (memcmp(&check_stv0299, &state->rxbuffer, 8)) {
1010 		dprintk(verbose, DST_ERROR, 1, "Found a STV0299 NIM");
1011 		state->tuner_type = TUNER_TYPE_STV0299;
1012 		return 0;
1013 	}
1014 
1015 	return -1;
1016 }
1017 
1018 static int dst_check_mb86a15(struct dst_state *state)
1019 {
1020 	u8 check_mb86a15[] = { 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
1021 
1022 	check_mb86a15[7] = dst_check_sum(check_mb86a15, 7);
1023 	if (dst_command(state, check_mb86a15, 8) < 0) {
1024 		dprintk(verbose, DST_ERROR, 1, "Cmd=[0x10], failed");
1025 		return -1;
1026 	}
1027 	debug_dst_buffer(state);
1028 
1029 	if (memcmp(&check_mb86a15, &state->rxbuffer, 8) < 0) {
1030 		dprintk(verbose, DST_ERROR, 1, "Found a MB86A15 NIM");
1031 		state->tuner_type = TUNER_TYPE_MB86A15;
1032 		return 0;
1033 	}
1034 
1035 	return -1;
1036 }
1037 
1038 static int dst_get_tuner_info(struct dst_state *state)
1039 {
1040 	u8 get_tuner_1[] = { 0x00, 0x13, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
1041 	u8 get_tuner_2[] = { 0x00, 0x0b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
1042 
1043 	get_tuner_1[7] = dst_check_sum(get_tuner_1, 7);
1044 	get_tuner_2[7] = dst_check_sum(get_tuner_2, 7);
1045 	dprintk(verbose, DST_ERROR, 1, "DST TYpe = MULTI FE");
1046 	if (state->type_flags & DST_TYPE_HAS_MULTI_FE) {
1047 		if (dst_command(state, get_tuner_1, 8) < 0) {
1048 			dprintk(verbose, DST_INFO, 1, "Cmd=[0x13], Unsupported");
1049 			goto force;
1050 		}
1051 	} else {
1052 		if (dst_command(state, get_tuner_2, 8) < 0) {
1053 			dprintk(verbose, DST_INFO, 1, "Cmd=[0xb], Unsupported");
1054 			goto force;
1055 		}
1056 	}
1057 	memcpy(&state->board_info, &state->rxbuffer, 8);
1058 	if (state->type_flags & DST_TYPE_HAS_MULTI_FE) {
1059 		dprintk(verbose, DST_ERROR, 1, "DST type has TS=188");
1060 	}
1061 	if (state->board_info[0] == 0xbc) {
1062 		if (state->dst_type != DST_TYPE_IS_ATSC)
1063 			state->type_flags |= DST_TYPE_HAS_TS188;
1064 		else
1065 			state->type_flags |= DST_TYPE_HAS_NEWTUNE_2;
1066 
1067 		if (state->board_info[1] == 0x01) {
1068 			state->dst_hw_cap |= DST_TYPE_HAS_DBOARD;
1069 			dprintk(verbose, DST_ERROR, 1, "DST has Daughterboard");
1070 		}
1071 	}
1072 
1073 	return 0;
1074 force:
1075 	if (!strncmp(state->fw_name, "DCT-CI", 6)) {
1076 		state->type_flags |= DST_TYPE_HAS_TS204;
1077 		dprintk(verbose, DST_ERROR, 1, "Forcing [%s] to TS188", state->fw_name);
1078 	}
1079 
1080 	return -1;
1081 }
1082 
1083 static int dst_get_device_id(struct dst_state *state)
1084 {
1085 	u8 reply;
1086 
1087 	int i, j;
1088 	struct dst_types *p_dst_type = NULL;
1089 	struct tuner_types *p_tuner_list = NULL;
1090 
1091 	u8 use_dst_type = 0;
1092 	u32 use_type_flags = 0;
1093 
1094 	static u8 device_type[8] = {0x00, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff};
1095 
1096 	state->tuner_type = 0;
1097 	device_type[7] = dst_check_sum(device_type, 7);
1098 
1099 	if (write_dst(state, device_type, FIXED_COMM))
1100 		return -1;		/*	Write failed		*/
1101 	if ((dst_pio_disable(state)) < 0)
1102 		return -1;
1103 	if (read_dst(state, &reply, GET_ACK))
1104 		return -1;		/*	Read failure		*/
1105 	if (reply != ACK) {
1106 		dprintk(verbose, DST_INFO, 1, "Write not Acknowledged! [Reply=0x%02x]", reply);
1107 		return -1;		/*	Unack'd write		*/
1108 	}
1109 	if (!dst_wait_dst_ready(state, DEVICE_INIT))
1110 		return -1;		/*	DST not ready yet	*/
1111 	if (read_dst(state, state->rxbuffer, FIXED_COMM))
1112 		return -1;
1113 
1114 	dst_pio_disable(state);
1115 	if (state->rxbuffer[7] != dst_check_sum(state->rxbuffer, 7)) {
1116 		dprintk(verbose, DST_INFO, 1, "Checksum failure!");
1117 		return -1;		/*	Checksum failure	*/
1118 	}
1119 	state->rxbuffer[7] = '\0';
1120 
1121 	for (i = 0, p_dst_type = dst_tlist; i < ARRAY_SIZE(dst_tlist); i++, p_dst_type++) {
1122 		if (!strncmp (&state->rxbuffer[p_dst_type->offset], p_dst_type->device_id, strlen (p_dst_type->device_id))) {
1123 			use_type_flags = p_dst_type->type_flags;
1124 			use_dst_type = p_dst_type->dst_type;
1125 
1126 			/*	Card capabilities	*/
1127 			state->dst_hw_cap = p_dst_type->dst_feature;
1128 			dprintk(verbose, DST_ERROR, 1, "Recognise [%s]", p_dst_type->device_id);
1129 			strncpy(&state->fw_name[0], p_dst_type->device_id, 6);
1130 			/*	Multiple tuners		*/
1131 			if (p_dst_type->tuner_type & TUNER_TYPE_MULTI) {
1132 				switch (use_dst_type) {
1133 				case DST_TYPE_IS_SAT:
1134 					/*	STV0299 check	*/
1135 					if (dst_check_stv0299(state) < 0) {
1136 						dprintk(verbose, DST_ERROR, 1, "Unsupported");
1137 						state->tuner_type = TUNER_TYPE_MB86A15;
1138 					}
1139 					break;
1140 				default:
1141 					break;
1142 				}
1143 				if (dst_check_mb86a15(state) < 0)
1144 					dprintk(verbose, DST_ERROR, 1, "Unsupported");
1145 			/*	Single tuner		*/
1146 			} else {
1147 				state->tuner_type = p_dst_type->tuner_type;
1148 			}
1149 			for (j = 0, p_tuner_list = tuner_list; j < ARRAY_SIZE(tuner_list); j++, p_tuner_list++) {
1150 				if (!(strncmp(p_dst_type->device_id, p_tuner_list->fw_name, 7)) &&
1151 					p_tuner_list->tuner_type == state->tuner_type) {
1152 					dprintk(verbose, DST_ERROR, 1, "[%s] has a [%s]",
1153 						p_dst_type->device_id, p_tuner_list->tuner_name);
1154 				}
1155 			}
1156 			break;
1157 		}
1158 	}
1159 
1160 	if (i >= ARRAY_SIZE(dst_tlist)) {
1161 		dprintk(verbose, DST_ERROR, 1, "Unable to recognize %s or %s", &state->rxbuffer[0], &state->rxbuffer[1]);
1162 		dprintk(verbose, DST_ERROR, 1, "please email linux-dvb@linuxtv.org with this type in");
1163 		use_dst_type = DST_TYPE_IS_SAT;
1164 		use_type_flags = DST_TYPE_HAS_SYMDIV;
1165 	}
1166 	dst_type_print(state, use_dst_type);
1167 	state->type_flags = use_type_flags;
1168 	state->dst_type = use_dst_type;
1169 	dst_type_flags_print(state);
1170 
1171 	return 0;
1172 }
1173 
1174 static int dst_probe(struct dst_state *state)
1175 {
1176 	mutex_init(&state->dst_mutex);
1177 	if (dst_addons & DST_TYPE_HAS_CA) {
1178 		if ((rdc_8820_reset(state)) < 0) {
1179 			dprintk(verbose, DST_ERROR, 1, "RDC 8820 RESET Failed.");
1180 			return -1;
1181 		}
1182 		msleep(4000);
1183 	} else {
1184 		msleep(100);
1185 	}
1186 	if ((dst_comm_init(state)) < 0) {
1187 		dprintk(verbose, DST_ERROR, 1, "DST Initialization Failed.");
1188 		return -1;
1189 	}
1190 	msleep(100);
1191 	if (dst_get_device_id(state) < 0) {
1192 		dprintk(verbose, DST_ERROR, 1, "unknown device.");
1193 		return -1;
1194 	}
1195 	if (dst_get_mac(state) < 0) {
1196 		dprintk(verbose, DST_INFO, 1, "MAC: Unsupported command");
1197 	}
1198 	if ((state->type_flags & DST_TYPE_HAS_MULTI_FE) || (state->type_flags & DST_TYPE_HAS_FW_BUILD)) {
1199 		if (dst_get_tuner_info(state) < 0)
1200 			dprintk(verbose, DST_INFO, 1, "Tuner: Unsupported command");
1201 	}
1202 	if (state->type_flags & DST_TYPE_HAS_TS204) {
1203 		dst_packsize(state, 204);
1204 	}
1205 	if (state->type_flags & DST_TYPE_HAS_FW_BUILD) {
1206 		if (dst_fw_ver(state) < 0) {
1207 			dprintk(verbose, DST_INFO, 1, "FW: Unsupported command");
1208 			return 0;
1209 		}
1210 		if (dst_card_type(state) < 0) {
1211 			dprintk(verbose, DST_INFO, 1, "Card: Unsupported command");
1212 			return 0;
1213 		}
1214 		if (dst_get_vendor(state) < 0) {
1215 			dprintk(verbose, DST_INFO, 1, "Vendor: Unsupported command");
1216 			return 0;
1217 		}
1218 	}
1219 
1220 	return 0;
1221 }
1222 
1223 static int dst_command(struct dst_state *state, u8 *data, u8 len)
1224 {
1225 	u8 reply;
1226 
1227 	mutex_lock(&state->dst_mutex);
1228 	if ((dst_comm_init(state)) < 0) {
1229 		dprintk(verbose, DST_NOTICE, 1, "DST Communication Initialization Failed.");
1230 		goto error;
1231 	}
1232 	if (write_dst(state, data, len)) {
1233 		dprintk(verbose, DST_INFO, 1, "Trying to recover.. ");
1234 		if ((dst_error_recovery(state)) < 0) {
1235 			dprintk(verbose, DST_ERROR, 1, "Recovery Failed.");
1236 			goto error;
1237 		}
1238 		goto error;
1239 	}
1240 	if ((dst_pio_disable(state)) < 0) {
1241 		dprintk(verbose, DST_ERROR, 1, "PIO Disable Failed.");
1242 		goto error;
1243 	}
1244 	if (state->type_flags & DST_TYPE_HAS_FW_1)
1245 		mdelay(3);
1246 	if (read_dst(state, &reply, GET_ACK)) {
1247 		dprintk(verbose, DST_DEBUG, 1, "Trying to recover.. ");
1248 		if ((dst_error_recovery(state)) < 0) {
1249 			dprintk(verbose, DST_INFO, 1, "Recovery Failed.");
1250 			goto error;
1251 		}
1252 		goto error;
1253 	}
1254 	if (reply != ACK) {
1255 		dprintk(verbose, DST_INFO, 1, "write not acknowledged 0x%02x ", reply);
1256 		goto error;
1257 	}
1258 	if (len >= 2 && data[0] == 0 && (data[1] == 1 || data[1] == 3))
1259 		goto error;
1260 	if (state->type_flags & DST_TYPE_HAS_FW_1)
1261 		mdelay(3);
1262 	else
1263 		udelay(2000);
1264 	if (!dst_wait_dst_ready(state, NO_DELAY))
1265 		goto error;
1266 	if (read_dst(state, state->rxbuffer, FIXED_COMM)) {
1267 		dprintk(verbose, DST_DEBUG, 1, "Trying to recover.. ");
1268 		if ((dst_error_recovery(state)) < 0) {
1269 			dprintk(verbose, DST_INFO, 1, "Recovery failed.");
1270 			goto error;
1271 		}
1272 		goto error;
1273 	}
1274 	if (state->rxbuffer[7] != dst_check_sum(state->rxbuffer, 7)) {
1275 		dprintk(verbose, DST_INFO, 1, "checksum failure");
1276 		goto error;
1277 	}
1278 	mutex_unlock(&state->dst_mutex);
1279 	return 0;
1280 
1281 error:
1282 	mutex_unlock(&state->dst_mutex);
1283 	return -EIO;
1284 
1285 }
1286 
1287 static int dst_get_signal(struct dst_state *state)
1288 {
1289 	int retval;
1290 	u8 get_signal[] = { 0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfb };
1291 	//dprintk("%s: Getting Signal strength and other parameters\n", __func__);
1292 	if ((state->diseq_flags & ATTEMPT_TUNE) == 0) {
1293 		state->decode_lock = state->decode_strength = state->decode_snr = 0;
1294 		return 0;
1295 	}
1296 	if (0 == (state->diseq_flags & HAS_LOCK)) {
1297 		state->decode_lock = state->decode_strength = state->decode_snr = 0;
1298 		return 0;
1299 	}
1300 	if (time_after_eq(jiffies, state->cur_jiff + (HZ / 5))) {
1301 		retval = dst_command(state, get_signal, 8);
1302 		if (retval < 0)
1303 			return retval;
1304 		if (state->dst_type == DST_TYPE_IS_SAT) {
1305 			state->decode_lock = ((state->rxbuffer[6] & 0x10) == 0) ? 1 : 0;
1306 			state->decode_strength = state->rxbuffer[5] << 8;
1307 			state->decode_snr = state->rxbuffer[2] << 8 | state->rxbuffer[3];
1308 		} else if ((state->dst_type == DST_TYPE_IS_TERR) || (state->dst_type == DST_TYPE_IS_CABLE)) {
1309 			state->decode_lock = (state->rxbuffer[1]) ? 1 : 0;
1310 			state->decode_strength = state->rxbuffer[4] << 8;
1311 			state->decode_snr = state->rxbuffer[3] << 8;
1312 		} else if (state->dst_type == DST_TYPE_IS_ATSC) {
1313 			state->decode_lock = (state->rxbuffer[6] == 0x00) ? 1 : 0;
1314 			state->decode_strength = state->rxbuffer[4] << 8;
1315 			state->decode_snr = state->rxbuffer[2] << 8 | state->rxbuffer[3];
1316 		}
1317 		state->cur_jiff = jiffies;
1318 	}
1319 	return 0;
1320 }
1321 
1322 static int dst_tone_power_cmd(struct dst_state *state)
1323 {
1324 	u8 paket[8] = { 0x00, 0x09, 0xff, 0xff, 0x01, 0x00, 0x00, 0x00 };
1325 
1326 	if (state->dst_type != DST_TYPE_IS_SAT)
1327 		return -EOPNOTSUPP;
1328 	paket[4] = state->tx_tuna[4];
1329 	paket[2] = state->tx_tuna[2];
1330 	paket[3] = state->tx_tuna[3];
1331 	paket[7] = dst_check_sum (paket, 7);
1332 	return dst_command(state, paket, 8);
1333 }
1334 
1335 static int dst_get_tuna(struct dst_state *state)
1336 {
1337 	int retval;
1338 
1339 	if ((state->diseq_flags & ATTEMPT_TUNE) == 0)
1340 		return 0;
1341 	state->diseq_flags &= ~(HAS_LOCK);
1342 	if (!dst_wait_dst_ready(state, NO_DELAY))
1343 		return -EIO;
1344 	if ((state->type_flags & DST_TYPE_HAS_VLF) &&
1345 		!(state->dst_type == DST_TYPE_IS_ATSC))
1346 
1347 		retval = read_dst(state, state->rx_tuna, 10);
1348 	else
1349 		retval = read_dst(state, &state->rx_tuna[2], FIXED_COMM);
1350 	if (retval < 0) {
1351 		dprintk(verbose, DST_DEBUG, 1, "read not successful");
1352 		return retval;
1353 	}
1354 	if ((state->type_flags & DST_TYPE_HAS_VLF) &&
1355 	   !(state->dst_type == DST_TYPE_IS_ATSC)) {
1356 
1357 		if (state->rx_tuna[9] != dst_check_sum(&state->rx_tuna[0], 9)) {
1358 			dprintk(verbose, DST_INFO, 1, "checksum failure ? ");
1359 			return -EIO;
1360 		}
1361 	} else {
1362 		if (state->rx_tuna[9] != dst_check_sum(&state->rx_tuna[2], 7)) {
1363 			dprintk(verbose, DST_INFO, 1, "checksum failure? ");
1364 			return -EIO;
1365 		}
1366 	}
1367 	if (state->rx_tuna[2] == 0 && state->rx_tuna[3] == 0)
1368 		return 0;
1369 	if (state->dst_type == DST_TYPE_IS_SAT) {
1370 		state->decode_freq = ((state->rx_tuna[2] & 0x7f) << 8) + state->rx_tuna[3];
1371 	} else {
1372 		state->decode_freq = ((state->rx_tuna[2] & 0x7f) << 16) + (state->rx_tuna[3] << 8) + state->rx_tuna[4];
1373 	}
1374 	state->decode_freq = state->decode_freq * 1000;
1375 	state->decode_lock = 1;
1376 	state->diseq_flags |= HAS_LOCK;
1377 
1378 	return 1;
1379 }
1380 
1381 static int dst_set_voltage(struct dvb_frontend *fe,
1382 			   enum fe_sec_voltage voltage);
1383 
1384 static int dst_write_tuna(struct dvb_frontend *fe)
1385 {
1386 	struct dst_state *state = fe->demodulator_priv;
1387 	int retval;
1388 	u8 reply;
1389 
1390 	dprintk(verbose, DST_INFO, 1, "type_flags 0x%x ", state->type_flags);
1391 	state->decode_freq = 0;
1392 	state->decode_lock = state->decode_strength = state->decode_snr = 0;
1393 	if (state->dst_type == DST_TYPE_IS_SAT) {
1394 		if (!(state->diseq_flags & HAS_POWER))
1395 			dst_set_voltage(fe, SEC_VOLTAGE_13);
1396 	}
1397 	state->diseq_flags &= ~(HAS_LOCK | ATTEMPT_TUNE);
1398 	mutex_lock(&state->dst_mutex);
1399 	if ((dst_comm_init(state)) < 0) {
1400 		dprintk(verbose, DST_DEBUG, 1, "DST Communication initialization failed.");
1401 		goto error;
1402 	}
1403 //	if (state->type_flags & DST_TYPE_HAS_NEWTUNE) {
1404 	if ((state->type_flags & DST_TYPE_HAS_VLF) &&
1405 		(!(state->dst_type == DST_TYPE_IS_ATSC))) {
1406 
1407 		state->tx_tuna[9] = dst_check_sum(&state->tx_tuna[0], 9);
1408 		retval = write_dst(state, &state->tx_tuna[0], 10);
1409 	} else {
1410 		state->tx_tuna[9] = dst_check_sum(&state->tx_tuna[2], 7);
1411 		retval = write_dst(state, &state->tx_tuna[2], FIXED_COMM);
1412 	}
1413 	if (retval < 0) {
1414 		dst_pio_disable(state);
1415 		dprintk(verbose, DST_DEBUG, 1, "write not successful");
1416 		goto werr;
1417 	}
1418 	if ((dst_pio_disable(state)) < 0) {
1419 		dprintk(verbose, DST_DEBUG, 1, "DST PIO disable failed !");
1420 		goto error;
1421 	}
1422 	if ((read_dst(state, &reply, GET_ACK) < 0)) {
1423 		dprintk(verbose, DST_DEBUG, 1, "read verify not successful.");
1424 		goto error;
1425 	}
1426 	if (reply != ACK) {
1427 		dprintk(verbose, DST_DEBUG, 1, "write not acknowledged 0x%02x ", reply);
1428 		goto error;
1429 	}
1430 	state->diseq_flags |= ATTEMPT_TUNE;
1431 	retval = dst_get_tuna(state);
1432 werr:
1433 	mutex_unlock(&state->dst_mutex);
1434 	return retval;
1435 
1436 error:
1437 	mutex_unlock(&state->dst_mutex);
1438 	return -EIO;
1439 }
1440 
1441 /*
1442  * line22k0    0x00, 0x09, 0x00, 0xff, 0x01, 0x00, 0x00, 0x00
1443  * line22k1    0x00, 0x09, 0x01, 0xff, 0x01, 0x00, 0x00, 0x00
1444  * line22k2    0x00, 0x09, 0x02, 0xff, 0x01, 0x00, 0x00, 0x00
1445  * tone        0x00, 0x09, 0xff, 0x00, 0x01, 0x00, 0x00, 0x00
1446  * data        0x00, 0x09, 0xff, 0x01, 0x01, 0x00, 0x00, 0x00
1447  * power_off   0x00, 0x09, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00
1448  * power_on    0x00, 0x09, 0xff, 0xff, 0x01, 0x00, 0x00, 0x00
1449  * Diseqc 1    0x00, 0x08, 0x04, 0xe0, 0x10, 0x38, 0xf0, 0xec
1450  * Diseqc 2    0x00, 0x08, 0x04, 0xe0, 0x10, 0x38, 0xf4, 0xe8
1451  * Diseqc 3    0x00, 0x08, 0x04, 0xe0, 0x10, 0x38, 0xf8, 0xe4
1452  * Diseqc 4    0x00, 0x08, 0x04, 0xe0, 0x10, 0x38, 0xfc, 0xe0
1453  */
1454 
1455 static int dst_set_diseqc(struct dvb_frontend *fe, struct dvb_diseqc_master_cmd *cmd)
1456 {
1457 	struct dst_state *state = fe->demodulator_priv;
1458 	u8 paket[8] = { 0x00, 0x08, 0x04, 0xe0, 0x10, 0x38, 0xf0, 0xec };
1459 
1460 	if (state->dst_type != DST_TYPE_IS_SAT)
1461 		return -EOPNOTSUPP;
1462 	if (cmd->msg_len > 0 && cmd->msg_len < 5)
1463 		memcpy(&paket[3], cmd->msg, cmd->msg_len);
1464 	else if (cmd->msg_len == 5 && state->dst_hw_cap & DST_TYPE_HAS_DISEQC5)
1465 		memcpy(&paket[2], cmd->msg, cmd->msg_len);
1466 	else
1467 		return -EINVAL;
1468 	paket[7] = dst_check_sum(&paket[0], 7);
1469 	return dst_command(state, paket, 8);
1470 }
1471 
1472 static int dst_set_voltage(struct dvb_frontend *fe, enum fe_sec_voltage voltage)
1473 {
1474 	int need_cmd, retval = 0;
1475 	struct dst_state *state = fe->demodulator_priv;
1476 
1477 	state->voltage = voltage;
1478 	if (state->dst_type != DST_TYPE_IS_SAT)
1479 		return -EOPNOTSUPP;
1480 
1481 	need_cmd = 0;
1482 
1483 	switch (voltage) {
1484 	case SEC_VOLTAGE_13:
1485 	case SEC_VOLTAGE_18:
1486 		if ((state->diseq_flags & HAS_POWER) == 0)
1487 			need_cmd = 1;
1488 		state->diseq_flags |= HAS_POWER;
1489 		state->tx_tuna[4] = 0x01;
1490 		break;
1491 	case SEC_VOLTAGE_OFF:
1492 		need_cmd = 1;
1493 		state->diseq_flags &= ~(HAS_POWER | HAS_LOCK | ATTEMPT_TUNE);
1494 		state->tx_tuna[4] = 0x00;
1495 		break;
1496 	default:
1497 		return -EINVAL;
1498 	}
1499 
1500 	if (need_cmd)
1501 		retval = dst_tone_power_cmd(state);
1502 
1503 	return retval;
1504 }
1505 
1506 static int dst_set_tone(struct dvb_frontend *fe, enum fe_sec_tone_mode tone)
1507 {
1508 	struct dst_state *state = fe->demodulator_priv;
1509 
1510 	state->tone = tone;
1511 	if (state->dst_type != DST_TYPE_IS_SAT)
1512 		return -EOPNOTSUPP;
1513 
1514 	switch (tone) {
1515 	case SEC_TONE_OFF:
1516 		if (state->type_flags & DST_TYPE_HAS_OBS_REGS)
1517 		    state->tx_tuna[2] = 0x00;
1518 		else
1519 		    state->tx_tuna[2] = 0xff;
1520 		break;
1521 
1522 	case SEC_TONE_ON:
1523 		state->tx_tuna[2] = 0x02;
1524 		break;
1525 	default:
1526 		return -EINVAL;
1527 	}
1528 	return dst_tone_power_cmd(state);
1529 }
1530 
1531 static int dst_send_burst(struct dvb_frontend *fe, enum fe_sec_mini_cmd minicmd)
1532 {
1533 	struct dst_state *state = fe->demodulator_priv;
1534 
1535 	if (state->dst_type != DST_TYPE_IS_SAT)
1536 		return -EOPNOTSUPP;
1537 	state->minicmd = minicmd;
1538 	switch (minicmd) {
1539 	case SEC_MINI_A:
1540 		state->tx_tuna[3] = 0x02;
1541 		break;
1542 	case SEC_MINI_B:
1543 		state->tx_tuna[3] = 0xff;
1544 		break;
1545 	}
1546 	return dst_tone_power_cmd(state);
1547 }
1548 
1549 
1550 static int bt8xx_dst_init(struct dvb_frontend *fe)
1551 {
1552 	struct dst_state *state = fe->demodulator_priv;
1553 
1554 	static u8 sat_tuna_188[] = { 0x09, 0x00, 0x03, 0xb6, 0x01, 0x00, 0x73, 0x21, 0x00, 0x00 };
1555 	static u8 sat_tuna_204[] = { 0x00, 0x00, 0x03, 0xb6, 0x01, 0x55, 0xbd, 0x50, 0x00, 0x00 };
1556 	static u8 ter_tuna_188[] = { 0x09, 0x00, 0x03, 0xb6, 0x01, 0x07, 0x00, 0x00, 0x00, 0x00 };
1557 	static u8 ter_tuna_204[] = { 0x00, 0x00, 0x03, 0xb6, 0x01, 0x07, 0x00, 0x00, 0x00, 0x00 };
1558 	static u8 cab_tuna_188[] = { 0x09, 0x00, 0x03, 0xb6, 0x01, 0x07, 0x00, 0x00, 0x00, 0x00 };
1559 	static u8 cab_tuna_204[] = { 0x00, 0x00, 0x03, 0xb6, 0x01, 0x07, 0x00, 0x00, 0x00, 0x00 };
1560 	static u8 atsc_tuner[] = { 0x00, 0x00, 0x03, 0xb6, 0x01, 0x07, 0x00, 0x00, 0x00, 0x00 };
1561 
1562 	state->inversion = INVERSION_OFF;
1563 	state->voltage = SEC_VOLTAGE_13;
1564 	state->tone = SEC_TONE_OFF;
1565 	state->diseq_flags = 0;
1566 	state->k22 = 0x02;
1567 	state->bandwidth = 7000000;
1568 	state->cur_jiff = jiffies;
1569 	if (state->dst_type == DST_TYPE_IS_SAT)
1570 		memcpy(state->tx_tuna, ((state->type_flags & DST_TYPE_HAS_VLF) ? sat_tuna_188 : sat_tuna_204), sizeof (sat_tuna_204));
1571 	else if (state->dst_type == DST_TYPE_IS_TERR)
1572 		memcpy(state->tx_tuna, ((state->type_flags & DST_TYPE_HAS_VLF) ? ter_tuna_188 : ter_tuna_204), sizeof (ter_tuna_204));
1573 	else if (state->dst_type == DST_TYPE_IS_CABLE)
1574 		memcpy(state->tx_tuna, ((state->type_flags & DST_TYPE_HAS_VLF) ? cab_tuna_188 : cab_tuna_204), sizeof (cab_tuna_204));
1575 	else if (state->dst_type == DST_TYPE_IS_ATSC)
1576 		memcpy(state->tx_tuna, atsc_tuner, sizeof (atsc_tuner));
1577 
1578 	return 0;
1579 }
1580 
1581 static int dst_read_status(struct dvb_frontend *fe, enum fe_status *status)
1582 {
1583 	struct dst_state *state = fe->demodulator_priv;
1584 
1585 	*status = 0;
1586 	if (state->diseq_flags & HAS_LOCK) {
1587 //		dst_get_signal(state);	// don't require(?) to ask MCU
1588 		if (state->decode_lock)
1589 			*status |= FE_HAS_LOCK | FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_SYNC | FE_HAS_VITERBI;
1590 	}
1591 
1592 	return 0;
1593 }
1594 
1595 static int dst_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
1596 {
1597 	struct dst_state *state = fe->demodulator_priv;
1598 
1599 	int retval = dst_get_signal(state);
1600 	*strength = state->decode_strength;
1601 
1602 	return retval;
1603 }
1604 
1605 static int dst_read_snr(struct dvb_frontend *fe, u16 *snr)
1606 {
1607 	struct dst_state *state = fe->demodulator_priv;
1608 
1609 	int retval = dst_get_signal(state);
1610 	*snr = state->decode_snr;
1611 
1612 	return retval;
1613 }
1614 
1615 static int dst_set_frontend(struct dvb_frontend *fe)
1616 {
1617 	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
1618 	int retval = -EINVAL;
1619 	struct dst_state *state = fe->demodulator_priv;
1620 
1621 	if (p != NULL) {
1622 		retval = dst_set_freq(state, p->frequency);
1623 		if(retval != 0)
1624 			return retval;
1625 		dprintk(verbose, DST_DEBUG, 1, "Set Frequency=[%d]", p->frequency);
1626 
1627 		if (state->dst_type == DST_TYPE_IS_SAT) {
1628 			if (state->type_flags & DST_TYPE_HAS_OBS_REGS)
1629 				dst_set_inversion(state, p->inversion);
1630 			dst_set_fec(state, p->fec_inner);
1631 			dst_set_symbolrate(state, p->symbol_rate);
1632 			dst_set_polarization(state);
1633 			dprintk(verbose, DST_DEBUG, 1, "Set Symbolrate=[%d]", p->symbol_rate);
1634 
1635 		} else if (state->dst_type == DST_TYPE_IS_TERR)
1636 			dst_set_bandwidth(state, p->bandwidth_hz);
1637 		else if (state->dst_type == DST_TYPE_IS_CABLE) {
1638 			dst_set_fec(state, p->fec_inner);
1639 			dst_set_symbolrate(state, p->symbol_rate);
1640 			dst_set_modulation(state, p->modulation);
1641 		}
1642 		retval = dst_write_tuna(fe);
1643 	}
1644 
1645 	return retval;
1646 }
1647 
1648 static int dst_tune_frontend(struct dvb_frontend* fe,
1649 			    bool re_tune,
1650 			    unsigned int mode_flags,
1651 			    unsigned int *delay,
1652 			    enum fe_status *status)
1653 {
1654 	struct dst_state *state = fe->demodulator_priv;
1655 	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
1656 
1657 	if (re_tune) {
1658 		dst_set_freq(state, p->frequency);
1659 		dprintk(verbose, DST_DEBUG, 1, "Set Frequency=[%d]", p->frequency);
1660 
1661 		if (state->dst_type == DST_TYPE_IS_SAT) {
1662 			if (state->type_flags & DST_TYPE_HAS_OBS_REGS)
1663 				dst_set_inversion(state, p->inversion);
1664 			dst_set_fec(state, p->fec_inner);
1665 			dst_set_symbolrate(state, p->symbol_rate);
1666 			dst_set_polarization(state);
1667 			dprintk(verbose, DST_DEBUG, 1, "Set Symbolrate=[%d]", p->symbol_rate);
1668 
1669 		} else if (state->dst_type == DST_TYPE_IS_TERR)
1670 			dst_set_bandwidth(state, p->bandwidth_hz);
1671 		else if (state->dst_type == DST_TYPE_IS_CABLE) {
1672 			dst_set_fec(state, p->fec_inner);
1673 			dst_set_symbolrate(state, p->symbol_rate);
1674 			dst_set_modulation(state, p->modulation);
1675 		}
1676 		dst_write_tuna(fe);
1677 	}
1678 
1679 	if (!(mode_flags & FE_TUNE_MODE_ONESHOT))
1680 		dst_read_status(fe, status);
1681 
1682 	*delay = HZ/10;
1683 	return 0;
1684 }
1685 
1686 static int dst_get_tuning_algo(struct dvb_frontend *fe)
1687 {
1688 	return dst_algo ? DVBFE_ALGO_HW : DVBFE_ALGO_SW;
1689 }
1690 
1691 static int dst_get_frontend(struct dvb_frontend *fe)
1692 {
1693 	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
1694 	struct dst_state *state = fe->demodulator_priv;
1695 
1696 	p->frequency = state->decode_freq;
1697 	if (state->dst_type == DST_TYPE_IS_SAT) {
1698 		if (state->type_flags & DST_TYPE_HAS_OBS_REGS)
1699 			p->inversion = state->inversion;
1700 		p->symbol_rate = state->symbol_rate;
1701 		p->fec_inner = dst_get_fec(state);
1702 	} else if (state->dst_type == DST_TYPE_IS_TERR) {
1703 		p->bandwidth_hz = state->bandwidth;
1704 	} else if (state->dst_type == DST_TYPE_IS_CABLE) {
1705 		p->symbol_rate = state->symbol_rate;
1706 		p->fec_inner = dst_get_fec(state);
1707 		p->modulation = dst_get_modulation(state);
1708 	}
1709 
1710 	return 0;
1711 }
1712 
1713 static void bt8xx_dst_release(struct dvb_frontend *fe)
1714 {
1715 	struct dst_state *state = fe->demodulator_priv;
1716 	if (state->dst_ca) {
1717 		dvb_unregister_device(state->dst_ca);
1718 #ifdef CONFIG_MEDIA_ATTACH
1719 		symbol_put(dst_ca_attach);
1720 #endif
1721 	}
1722 	kfree(state);
1723 }
1724 
1725 static struct dvb_frontend_ops dst_dvbt_ops;
1726 static struct dvb_frontend_ops dst_dvbs_ops;
1727 static struct dvb_frontend_ops dst_dvbc_ops;
1728 static struct dvb_frontend_ops dst_atsc_ops;
1729 
1730 struct dst_state *dst_attach(struct dst_state *state, struct dvb_adapter *dvb_adapter)
1731 {
1732 	/* check if the ASIC is there */
1733 	if (dst_probe(state) < 0) {
1734 		kfree(state);
1735 		return NULL;
1736 	}
1737 	/* determine settings based on type */
1738 	/* create dvb_frontend */
1739 	switch (state->dst_type) {
1740 	case DST_TYPE_IS_TERR:
1741 		memcpy(&state->frontend.ops, &dst_dvbt_ops, sizeof(struct dvb_frontend_ops));
1742 		break;
1743 	case DST_TYPE_IS_CABLE:
1744 		memcpy(&state->frontend.ops, &dst_dvbc_ops, sizeof(struct dvb_frontend_ops));
1745 		break;
1746 	case DST_TYPE_IS_SAT:
1747 		memcpy(&state->frontend.ops, &dst_dvbs_ops, sizeof(struct dvb_frontend_ops));
1748 		break;
1749 	case DST_TYPE_IS_ATSC:
1750 		memcpy(&state->frontend.ops, &dst_atsc_ops, sizeof(struct dvb_frontend_ops));
1751 		break;
1752 	default:
1753 		dprintk(verbose, DST_ERROR, 1, "unknown DST type. please report to the LinuxTV.org DVB mailinglist.");
1754 		kfree(state);
1755 		return NULL;
1756 	}
1757 	state->frontend.demodulator_priv = state;
1758 
1759 	return state;				/*	Manu (DST is a card not a frontend)	*/
1760 }
1761 
1762 EXPORT_SYMBOL(dst_attach);
1763 
1764 static struct dvb_frontend_ops dst_dvbt_ops = {
1765 	.delsys = { SYS_DVBT },
1766 	.info = {
1767 		.name = "DST DVB-T",
1768 		.frequency_min = 137000000,
1769 		.frequency_max = 858000000,
1770 		.frequency_stepsize = 166667,
1771 		.caps = FE_CAN_FEC_AUTO			|
1772 			FE_CAN_QAM_AUTO			|
1773 			FE_CAN_QAM_16			|
1774 			FE_CAN_QAM_32			|
1775 			FE_CAN_QAM_64			|
1776 			FE_CAN_QAM_128			|
1777 			FE_CAN_QAM_256			|
1778 			FE_CAN_TRANSMISSION_MODE_AUTO	|
1779 			FE_CAN_GUARD_INTERVAL_AUTO
1780 	},
1781 
1782 	.release = bt8xx_dst_release,
1783 	.init = bt8xx_dst_init,
1784 	.tune = dst_tune_frontend,
1785 	.set_frontend = dst_set_frontend,
1786 	.get_frontend = dst_get_frontend,
1787 	.get_frontend_algo = dst_get_tuning_algo,
1788 	.read_status = dst_read_status,
1789 	.read_signal_strength = dst_read_signal_strength,
1790 	.read_snr = dst_read_snr,
1791 };
1792 
1793 static struct dvb_frontend_ops dst_dvbs_ops = {
1794 	.delsys = { SYS_DVBS },
1795 	.info = {
1796 		.name = "DST DVB-S",
1797 		.frequency_min = 950000,
1798 		.frequency_max = 2150000,
1799 		.frequency_stepsize = 1000,	/* kHz for QPSK frontends */
1800 		.frequency_tolerance = 29500,
1801 		.symbol_rate_min = 1000000,
1802 		.symbol_rate_max = 45000000,
1803 	/*     . symbol_rate_tolerance	=	???,*/
1804 		.caps = FE_CAN_FEC_AUTO | FE_CAN_QPSK
1805 	},
1806 
1807 	.release = bt8xx_dst_release,
1808 	.init = bt8xx_dst_init,
1809 	.tune = dst_tune_frontend,
1810 	.set_frontend = dst_set_frontend,
1811 	.get_frontend = dst_get_frontend,
1812 	.get_frontend_algo = dst_get_tuning_algo,
1813 	.read_status = dst_read_status,
1814 	.read_signal_strength = dst_read_signal_strength,
1815 	.read_snr = dst_read_snr,
1816 	.diseqc_send_burst = dst_send_burst,
1817 	.diseqc_send_master_cmd = dst_set_diseqc,
1818 	.set_voltage = dst_set_voltage,
1819 	.set_tone = dst_set_tone,
1820 };
1821 
1822 static struct dvb_frontend_ops dst_dvbc_ops = {
1823 	.delsys = { SYS_DVBC_ANNEX_A },
1824 	.info = {
1825 		.name = "DST DVB-C",
1826 		.frequency_stepsize = 62500,
1827 		.frequency_min = 51000000,
1828 		.frequency_max = 858000000,
1829 		.symbol_rate_min = 1000000,
1830 		.symbol_rate_max = 45000000,
1831 		.caps = FE_CAN_FEC_AUTO |
1832 			FE_CAN_QAM_AUTO |
1833 			FE_CAN_QAM_16	|
1834 			FE_CAN_QAM_32	|
1835 			FE_CAN_QAM_64	|
1836 			FE_CAN_QAM_128	|
1837 			FE_CAN_QAM_256
1838 	},
1839 
1840 	.release = bt8xx_dst_release,
1841 	.init = bt8xx_dst_init,
1842 	.tune = dst_tune_frontend,
1843 	.set_frontend = dst_set_frontend,
1844 	.get_frontend = dst_get_frontend,
1845 	.get_frontend_algo = dst_get_tuning_algo,
1846 	.read_status = dst_read_status,
1847 	.read_signal_strength = dst_read_signal_strength,
1848 	.read_snr = dst_read_snr,
1849 };
1850 
1851 static struct dvb_frontend_ops dst_atsc_ops = {
1852 	.delsys = { SYS_ATSC },
1853 	.info = {
1854 		.name = "DST ATSC",
1855 		.frequency_stepsize = 62500,
1856 		.frequency_min = 510000000,
1857 		.frequency_max = 858000000,
1858 		.symbol_rate_min = 1000000,
1859 		.symbol_rate_max = 45000000,
1860 		.caps = FE_CAN_FEC_AUTO | FE_CAN_QAM_AUTO | FE_CAN_QAM_64 | FE_CAN_QAM_256 | FE_CAN_8VSB
1861 	},
1862 
1863 	.release = bt8xx_dst_release,
1864 	.init = bt8xx_dst_init,
1865 	.tune = dst_tune_frontend,
1866 	.set_frontend = dst_set_frontend,
1867 	.get_frontend = dst_get_frontend,
1868 	.get_frontend_algo = dst_get_tuning_algo,
1869 	.read_status = dst_read_status,
1870 	.read_signal_strength = dst_read_signal_strength,
1871 	.read_snr = dst_read_snr,
1872 };
1873 
1874 MODULE_DESCRIPTION("DST DVB-S/T/C/ATSC Combo Frontend driver");
1875 MODULE_AUTHOR("Jamie Honan, Manu Abraham");
1876 MODULE_LICENSE("GPL");
1877