1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3	Frontend/Card driver for TwinHan DST Frontend
4	Copyright (C) 2003 Jamie Honan
5	Copyright (C) 2004, 2005 Manu Abraham (manu@kromtek.com)
6
7*/
8
9#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
10
11#include <linux/kernel.h>
12#include <linux/module.h>
13#include <linux/init.h>
14#include <linux/string.h>
15#include <linux/slab.h>
16#include <linux/vmalloc.h>
17#include <linux/delay.h>
18#include <asm/div64.h>
19#include <media/dvb_frontend.h>
20#include "dst_priv.h"
21#include "dst_common.h"
22
23static unsigned int verbose;
24module_param(verbose, int, 0644);
25MODULE_PARM_DESC(verbose, "verbosity level (0 to 3)");
26
27static unsigned int dst_addons;
28module_param(dst_addons, int, 0644);
29MODULE_PARM_DESC(dst_addons, "CA daughterboard, default is 0 (No addons)");
30
31static unsigned int dst_algo;
32module_param(dst_algo, int, 0644);
33MODULE_PARM_DESC(dst_algo, "tuning algo: default is 0=(SW), 1=(HW)");
34
35#define HAS_LOCK		1
36#define ATTEMPT_TUNE		2
37#define HAS_POWER		4
38
39#define dprintk(level, fmt, arg...) do {				\
40	if (level >= verbose)						\
41		printk(KERN_DEBUG pr_fmt("%s: " fmt),			\
42		       __func__, ##arg);				\
43} while(0)
44
45static int dst_command(struct dst_state *state, u8 *data, u8 len);
46
47static void dst_packsize(struct dst_state *state, int psize)
48{
49	union dst_gpio_packet bits;
50
51	bits.psize = psize;
52	bt878_device_control(state->bt, DST_IG_TS, &bits);
53}
54
55static int dst_gpio_outb(struct dst_state *state, u32 mask, u32 enbb,
56			 u32 outhigh, int delay)
57{
58	union dst_gpio_packet enb;
59	union dst_gpio_packet bits;
60	int err;
61
62	enb.enb.mask = mask;
63	enb.enb.enable = enbb;
64
65	dprintk(2, "mask=[%04x], enbb=[%04x], outhigh=[%04x]\n",
66		mask, enbb, outhigh);
67	if ((err = bt878_device_control(state->bt, DST_IG_ENABLE, &enb)) < 0) {
68		dprintk(2, "dst_gpio_enb error (err == %i, mask == %02x, enb == %02x)\n",
69			err, mask, enbb);
70		return -EREMOTEIO;
71	}
72	udelay(1000);
73	/* because complete disabling means no output, no need to do output packet */
74	if (enbb == 0)
75		return 0;
76	if (delay)
77		msleep(10);
78	bits.outp.mask = enbb;
79	bits.outp.highvals = outhigh;
80	if ((err = bt878_device_control(state->bt, DST_IG_WRITE, &bits)) < 0) {
81		dprintk(2, "dst_gpio_outb error (err == %i, enbb == %02x, outhigh == %02x)\n",
82			err, enbb, outhigh);
83		return -EREMOTEIO;
84	}
85
86	return 0;
87}
88
89static int dst_gpio_inb(struct dst_state *state, u8 *result)
90{
91	union dst_gpio_packet rd_packet;
92	int err;
93
94	*result = 0;
95	if ((err = bt878_device_control(state->bt, DST_IG_READ, &rd_packet)) < 0) {
96		pr_err("dst_gpio_inb error (err == %i)\n", err);
97		return -EREMOTEIO;
98	}
99	*result = (u8) rd_packet.rd.value;
100
101	return 0;
102}
103
104int rdc_reset_state(struct dst_state *state)
105{
106	dprintk(2, "Resetting state machine\n");
107	if (dst_gpio_outb(state, RDC_8820_INT, RDC_8820_INT, 0, NO_DELAY) < 0) {
108		pr_err("dst_gpio_outb ERROR !\n");
109		return -1;
110	}
111	msleep(10);
112	if (dst_gpio_outb(state, RDC_8820_INT, RDC_8820_INT, RDC_8820_INT, NO_DELAY) < 0) {
113		pr_err("dst_gpio_outb ERROR !\n");
114		msleep(10);
115		return -1;
116	}
117
118	return 0;
119}
120EXPORT_SYMBOL(rdc_reset_state);
121
122static int rdc_8820_reset(struct dst_state *state)
123{
124	dprintk(3, "Resetting DST\n");
125	if (dst_gpio_outb(state, RDC_8820_RESET, RDC_8820_RESET, 0, NO_DELAY) < 0) {
126		pr_err("dst_gpio_outb ERROR !\n");
127		return -1;
128	}
129	udelay(1000);
130	if (dst_gpio_outb(state, RDC_8820_RESET, RDC_8820_RESET, RDC_8820_RESET, DELAY) < 0) {
131		pr_err("dst_gpio_outb ERROR !\n");
132		return -1;
133	}
134
135	return 0;
136}
137
138static int dst_pio_enable(struct dst_state *state)
139{
140	if (dst_gpio_outb(state, ~0, RDC_8820_PIO_0_ENABLE, 0, NO_DELAY) < 0) {
141		pr_err("dst_gpio_outb ERROR !\n");
142		return -1;
143	}
144	udelay(1000);
145
146	return 0;
147}
148
149int dst_pio_disable(struct dst_state *state)
150{
151	if (dst_gpio_outb(state, ~0, RDC_8820_PIO_0_DISABLE, RDC_8820_PIO_0_DISABLE, NO_DELAY) < 0) {
152		pr_err("dst_gpio_outb ERROR !\n");
153		return -1;
154	}
155	if (state->type_flags & DST_TYPE_HAS_FW_1)
156		udelay(1000);
157
158	return 0;
159}
160EXPORT_SYMBOL(dst_pio_disable);
161
162int dst_wait_dst_ready(struct dst_state *state, u8 delay_mode)
163{
164	u8 reply;
165	int i;
166
167	for (i = 0; i < 200; i++) {
168		if (dst_gpio_inb(state, &reply) < 0) {
169			pr_err("dst_gpio_inb ERROR !\n");
170			return -1;
171		}
172		if ((reply & RDC_8820_PIO_0_ENABLE) == 0) {
173			dprintk(2, "dst wait ready after %d\n", i);
174			return 1;
175		}
176		msleep(10);
177	}
178	dprintk(1, "dst wait NOT ready after %d\n", i);
179
180	return 0;
181}
182EXPORT_SYMBOL(dst_wait_dst_ready);
183
184int dst_error_recovery(struct dst_state *state)
185{
186	dprintk(1, "Trying to return from previous errors.\n");
187	dst_pio_disable(state);
188	msleep(10);
189	dst_pio_enable(state);
190	msleep(10);
191
192	return 0;
193}
194EXPORT_SYMBOL(dst_error_recovery);
195
196int dst_error_bailout(struct dst_state *state)
197{
198	dprintk(2, "Trying to bailout from previous error.\n");
199	rdc_8820_reset(state);
200	dst_pio_disable(state);
201	msleep(10);
202
203	return 0;
204}
205EXPORT_SYMBOL(dst_error_bailout);
206
207int dst_comm_init(struct dst_state *state)
208{
209	dprintk(2, "Initializing DST.\n");
210	if ((dst_pio_enable(state)) < 0) {
211		pr_err("PIO Enable Failed\n");
212		return -1;
213	}
214	if ((rdc_reset_state(state)) < 0) {
215		pr_err("RDC 8820 State RESET Failed.\n");
216		return -1;
217	}
218	if (state->type_flags & DST_TYPE_HAS_FW_1)
219		msleep(100);
220	else
221		msleep(5);
222
223	return 0;
224}
225EXPORT_SYMBOL(dst_comm_init);
226
227int write_dst(struct dst_state *state, u8 *data, u8 len)
228{
229	struct i2c_msg msg = {
230		.addr = state->config->demod_address,
231		.flags = 0,
232		.buf = data,
233		.len = len
234	};
235
236	int err;
237	u8 cnt;
238
239	dprintk(1, "writing [ %*ph ]\n", len, data);
240
241	for (cnt = 0; cnt < 2; cnt++) {
242		if ((err = i2c_transfer(state->i2c, &msg, 1)) < 0) {
243			dprintk(2, "_write_dst error (err == %i, len == 0x%02x, b0 == 0x%02x)\n",
244				err, len, data[0]);
245			dst_error_recovery(state);
246			continue;
247		} else
248			break;
249	}
250	if (cnt >= 2) {
251		dprintk(2, "RDC 8820 RESET\n");
252		dst_error_bailout(state);
253
254		return -1;
255	}
256
257	return 0;
258}
259EXPORT_SYMBOL(write_dst);
260
261int read_dst(struct dst_state *state, u8 *ret, u8 len)
262{
263	struct i2c_msg msg = {
264		.addr = state->config->demod_address,
265		.flags = I2C_M_RD,
266		.buf = ret,
267		.len = len
268	};
269
270	int err;
271	int cnt;
272
273	for (cnt = 0; cnt < 2; cnt++) {
274		if ((err = i2c_transfer(state->i2c, &msg, 1)) < 0) {
275			dprintk(2, "read_dst error (err == %i, len == 0x%02x, b0 == 0x%02x)\n",
276				err, len, ret[0]);
277			dst_error_recovery(state);
278			continue;
279		} else
280			break;
281	}
282	if (cnt >= 2) {
283		dprintk(2, "RDC 8820 RESET\n");
284		dst_error_bailout(state);
285
286		return -1;
287	}
288	dprintk(3, "reply is %*ph\n", len, ret);
289
290	return 0;
291}
292EXPORT_SYMBOL(read_dst);
293
294static int dst_set_polarization(struct dst_state *state)
295{
296	switch (state->voltage) {
297	case SEC_VOLTAGE_13:	/*	Vertical	*/
298		dprintk(2, "Polarization=[Vertical]\n");
299		state->tx_tuna[8] &= ~0x40;
300		break;
301	case SEC_VOLTAGE_18:	/*	Horizontal	*/
302		dprintk(2, "Polarization=[Horizontal]\n");
303		state->tx_tuna[8] |= 0x40;
304		break;
305	case SEC_VOLTAGE_OFF:
306		break;
307	}
308
309	return 0;
310}
311
312static int dst_set_freq(struct dst_state *state, u32 freq)
313{
314	state->frequency = freq;
315	dprintk(2, "set Frequency %u\n", freq);
316
317	if (state->dst_type == DST_TYPE_IS_SAT) {
318		freq = freq / 1000;
319		if (freq < 950 || freq > 2150)
320			return -EINVAL;
321		state->tx_tuna[2] = (freq >> 8);
322		state->tx_tuna[3] = (u8) freq;
323		state->tx_tuna[4] = 0x01;
324		state->tx_tuna[8] &= ~0x04;
325		if (state->type_flags & DST_TYPE_HAS_OBS_REGS) {
326			if (freq < 1531)
327				state->tx_tuna[8] |= 0x04;
328		}
329	} else if (state->dst_type == DST_TYPE_IS_TERR) {
330		freq = freq / 1000;
331		if (freq < 137000 || freq > 858000)
332			return -EINVAL;
333		state->tx_tuna[2] = (freq >> 16) & 0xff;
334		state->tx_tuna[3] = (freq >> 8) & 0xff;
335		state->tx_tuna[4] = (u8) freq;
336	} else if (state->dst_type == DST_TYPE_IS_CABLE) {
337		freq = freq / 1000;
338		state->tx_tuna[2] = (freq >> 16) & 0xff;
339		state->tx_tuna[3] = (freq >> 8) & 0xff;
340		state->tx_tuna[4] = (u8) freq;
341	} else if (state->dst_type == DST_TYPE_IS_ATSC) {
342		freq = freq / 1000;
343		if (freq < 51000 || freq > 858000)
344			return -EINVAL;
345		state->tx_tuna[2] = (freq >> 16) & 0xff;
346		state->tx_tuna[3] = (freq >>  8) & 0xff;
347		state->tx_tuna[4] = (u8) freq;
348		state->tx_tuna[5] = 0x00;		/*	ATSC	*/
349		state->tx_tuna[6] = 0x00;
350		if (state->dst_hw_cap & DST_TYPE_HAS_ANALOG)
351			state->tx_tuna[7] = 0x00;	/*	Digital	*/
352	} else
353		return -EINVAL;
354
355	return 0;
356}
357
358static int dst_set_bandwidth(struct dst_state *state, u32 bandwidth)
359{
360	state->bandwidth = bandwidth;
361
362	if (state->dst_type != DST_TYPE_IS_TERR)
363		return -EOPNOTSUPP;
364
365	switch (bandwidth) {
366	case 6000000:
367		if (state->dst_hw_cap & DST_TYPE_HAS_CA)
368			state->tx_tuna[7] = 0x06;
369		else {
370			state->tx_tuna[6] = 0x06;
371			state->tx_tuna[7] = 0x00;
372		}
373		break;
374	case 7000000:
375		if (state->dst_hw_cap & DST_TYPE_HAS_CA)
376			state->tx_tuna[7] = 0x07;
377		else {
378			state->tx_tuna[6] = 0x07;
379			state->tx_tuna[7] = 0x00;
380		}
381		break;
382	case 8000000:
383		if (state->dst_hw_cap & DST_TYPE_HAS_CA)
384			state->tx_tuna[7] = 0x08;
385		else {
386			state->tx_tuna[6] = 0x08;
387			state->tx_tuna[7] = 0x00;
388		}
389		break;
390	default:
391		return -EINVAL;
392	}
393
394	return 0;
395}
396
397static int dst_set_inversion(struct dst_state *state,
398			     enum fe_spectral_inversion inversion)
399{
400	state->inversion = inversion;
401	switch (inversion) {
402	case INVERSION_OFF:	/*	Inversion = Normal	*/
403		state->tx_tuna[8] &= ~0x80;
404		break;
405	case INVERSION_ON:
406		state->tx_tuna[8] |= 0x80;
407		break;
408	default:
409		return -EINVAL;
410	}
411
412	return 0;
413}
414
415static int dst_set_fec(struct dst_state *state, enum fe_code_rate fec)
416{
417	state->fec = fec;
418	return 0;
419}
420
421static enum fe_code_rate dst_get_fec(struct dst_state *state)
422{
423	return state->fec;
424}
425
426static int dst_set_symbolrate(struct dst_state *state, u32 srate)
427{
428	u32 symcalc;
429	u64 sval;
430
431	state->symbol_rate = srate;
432	if (state->dst_type == DST_TYPE_IS_TERR) {
433		return -EOPNOTSUPP;
434	}
435	dprintk(2, "set symrate %u\n", srate);
436	srate /= 1000;
437	if (state->dst_type == DST_TYPE_IS_SAT) {
438		if (state->type_flags & DST_TYPE_HAS_SYMDIV) {
439			sval = srate;
440			sval <<= 20;
441			do_div(sval, 88000);
442			symcalc = (u32) sval;
443			dprintk(2, "set symcalc %u\n", symcalc);
444			state->tx_tuna[5] = (u8) (symcalc >> 12);
445			state->tx_tuna[6] = (u8) (symcalc >> 4);
446			state->tx_tuna[7] = (u8) (symcalc << 4);
447		} else {
448			state->tx_tuna[5] = (u8) (srate >> 16) & 0x7f;
449			state->tx_tuna[6] = (u8) (srate >> 8);
450			state->tx_tuna[7] = (u8) srate;
451		}
452		state->tx_tuna[8] &= ~0x20;
453		if (state->type_flags & DST_TYPE_HAS_OBS_REGS) {
454			if (srate > 8000)
455				state->tx_tuna[8] |= 0x20;
456		}
457	} else if (state->dst_type == DST_TYPE_IS_CABLE) {
458		dprintk(3, "%s\n", state->fw_name);
459		if (!strncmp(state->fw_name, "DCTNEW", 6)) {
460			state->tx_tuna[5] = (u8) (srate >> 8);
461			state->tx_tuna[6] = (u8) srate;
462			state->tx_tuna[7] = 0x00;
463		} else if (!strncmp(state->fw_name, "DCT-CI", 6)) {
464			state->tx_tuna[5] = 0x00;
465			state->tx_tuna[6] = (u8) (srate >> 8);
466			state->tx_tuna[7] = (u8) srate;
467		}
468	}
469	return 0;
470}
471
472static int dst_set_modulation(struct dst_state *state,
473			      enum fe_modulation modulation)
474{
475	if (state->dst_type != DST_TYPE_IS_CABLE)
476		return -EOPNOTSUPP;
477
478	state->modulation = modulation;
479	switch (modulation) {
480	case QAM_16:
481		state->tx_tuna[8] = 0x10;
482		break;
483	case QAM_32:
484		state->tx_tuna[8] = 0x20;
485		break;
486	case QAM_64:
487		state->tx_tuna[8] = 0x40;
488		break;
489	case QAM_128:
490		state->tx_tuna[8] = 0x80;
491		break;
492	case QAM_256:
493		if (!strncmp(state->fw_name, "DCTNEW", 6))
494			state->tx_tuna[8] = 0xff;
495		else if (!strncmp(state->fw_name, "DCT-CI", 6))
496			state->tx_tuna[8] = 0x00;
497		break;
498	case QPSK:
499	case QAM_AUTO:
500	case VSB_8:
501	case VSB_16:
502	default:
503		return -EINVAL;
504
505	}
506
507	return 0;
508}
509
510static enum fe_modulation dst_get_modulation(struct dst_state *state)
511{
512	return state->modulation;
513}
514
515
516u8 dst_check_sum(u8 *buf, u32 len)
517{
518	u32 i;
519	u8 val = 0;
520	if (!len)
521		return 0;
522	for (i = 0; i < len; i++) {
523		val += buf[i];
524	}
525	return ((~val) + 1);
526}
527EXPORT_SYMBOL(dst_check_sum);
528
529static void dst_type_flags_print(struct dst_state *state)
530{
531	u32 type_flags = state->type_flags;
532
533	pr_err("DST type flags :\n");
534	if (type_flags & DST_TYPE_HAS_TS188)
535		pr_err(" 0x%x newtuner\n", DST_TYPE_HAS_TS188);
536	if (type_flags & DST_TYPE_HAS_NEWTUNE_2)
537		pr_err(" 0x%x newtuner 2\n", DST_TYPE_HAS_NEWTUNE_2);
538	if (type_flags & DST_TYPE_HAS_TS204)
539		pr_err(" 0x%x ts204\n", DST_TYPE_HAS_TS204);
540	if (type_flags & DST_TYPE_HAS_VLF)
541		pr_err(" 0x%x VLF\n", DST_TYPE_HAS_VLF);
542	if (type_flags & DST_TYPE_HAS_SYMDIV)
543		pr_err(" 0x%x symdiv\n", DST_TYPE_HAS_SYMDIV);
544	if (type_flags & DST_TYPE_HAS_FW_1)
545		pr_err(" 0x%x firmware version = 1\n", DST_TYPE_HAS_FW_1);
546	if (type_flags & DST_TYPE_HAS_FW_2)
547		pr_err(" 0x%x firmware version = 2\n", DST_TYPE_HAS_FW_2);
548	if (type_flags & DST_TYPE_HAS_FW_3)
549		pr_err(" 0x%x firmware version = 3\n", DST_TYPE_HAS_FW_3);
550	pr_err("\n");
551}
552
553
554static int dst_type_print(struct dst_state *state, u8 type)
555{
556	char *otype;
557	switch (type) {
558	case DST_TYPE_IS_SAT:
559		otype = "satellite";
560		break;
561
562	case DST_TYPE_IS_TERR:
563		otype = "terrestrial";
564		break;
565
566	case DST_TYPE_IS_CABLE:
567		otype = "cable";
568		break;
569
570	case DST_TYPE_IS_ATSC:
571		otype = "atsc";
572		break;
573
574	default:
575		dprintk(2, "invalid dst type %d\n", type);
576		return -EINVAL;
577	}
578	dprintk(2, "DST type: %s\n", otype);
579
580	return 0;
581}
582
583static struct tuner_types tuner_list[] = {
584	{
585		.tuner_type = TUNER_TYPE_L64724,
586		.tuner_name = "L 64724",
587		.board_name = "UNKNOWN",
588		.fw_name    = "UNKNOWN"
589	},
590
591	{
592		.tuner_type = TUNER_TYPE_STV0299,
593		.tuner_name = "STV 0299",
594		.board_name = "VP1020",
595		.fw_name    = "DST-MOT"
596	},
597
598	{
599		.tuner_type = TUNER_TYPE_STV0299,
600		.tuner_name = "STV 0299",
601		.board_name = "VP1020",
602		.fw_name    = "DST-03T"
603	},
604
605	{
606		.tuner_type = TUNER_TYPE_MB86A15,
607		.tuner_name = "MB 86A15",
608		.board_name = "VP1022",
609		.fw_name    = "DST-03T"
610	},
611
612	{
613		.tuner_type = TUNER_TYPE_MB86A15,
614		.tuner_name = "MB 86A15",
615		.board_name = "VP1025",
616		.fw_name    = "DST-03T"
617	},
618
619	{
620		.tuner_type = TUNER_TYPE_STV0299,
621		.tuner_name = "STV 0299",
622		.board_name = "VP1030",
623		.fw_name    = "DST-CI"
624	},
625
626	{
627		.tuner_type = TUNER_TYPE_STV0299,
628		.tuner_name = "STV 0299",
629		.board_name = "VP1030",
630		.fw_name    = "DSTMCI"
631	},
632
633	{
634		.tuner_type = TUNER_TYPE_UNKNOWN,
635		.tuner_name = "UNKNOWN",
636		.board_name = "VP2021",
637		.fw_name    = "DCTNEW"
638	},
639
640	{
641		.tuner_type = TUNER_TYPE_UNKNOWN,
642		.tuner_name = "UNKNOWN",
643		.board_name = "VP2030",
644		.fw_name    = "DCT-CI"
645	},
646
647	{
648		.tuner_type = TUNER_TYPE_UNKNOWN,
649		.tuner_name = "UNKNOWN",
650		.board_name = "VP2031",
651		.fw_name    = "DCT-CI"
652	},
653
654	{
655		.tuner_type = TUNER_TYPE_UNKNOWN,
656		.tuner_name = "UNKNOWN",
657		.board_name = "VP2040",
658		.fw_name    = "DCT-CI"
659	},
660
661	{
662		.tuner_type = TUNER_TYPE_UNKNOWN,
663		.tuner_name = "UNKNOWN",
664		.board_name = "VP3020",
665		.fw_name    = "DTTFTA"
666	},
667
668	{
669		.tuner_type = TUNER_TYPE_UNKNOWN,
670		.tuner_name = "UNKNOWN",
671		.board_name = "VP3021",
672		.fw_name    = "DTTFTA"
673	},
674
675	{
676		.tuner_type = TUNER_TYPE_TDA10046,
677		.tuner_name = "TDA10046",
678		.board_name = "VP3040",
679		.fw_name    = "DTT-CI"
680	},
681
682	{
683		.tuner_type = TUNER_TYPE_UNKNOWN,
684		.tuner_name = "UNKNOWN",
685		.board_name = "VP3051",
686		.fw_name    = "DTTNXT"
687	},
688
689	{
690		.tuner_type = TUNER_TYPE_NXT200x,
691		.tuner_name = "NXT200x",
692		.board_name = "VP3220",
693		.fw_name    = "ATSCDI"
694	},
695
696	{
697		.tuner_type = TUNER_TYPE_NXT200x,
698		.tuner_name = "NXT200x",
699		.board_name = "VP3250",
700		.fw_name    = "ATSCAD"
701	},
702};
703
704/*
705	Known cards list
706	Satellite
707	-------------------
708		  200103A
709	VP-1020   DST-MOT	LG(old), TS=188
710
711	VP-1020   DST-03T	LG(new), TS=204
712	VP-1022   DST-03T	LG(new), TS=204
713	VP-1025   DST-03T	LG(new), TS=204
714
715	VP-1030   DSTMCI,	LG(new), TS=188
716	VP-1032   DSTMCI,	LG(new), TS=188
717
718	Cable
719	-------------------
720	VP-2030   DCT-CI,	Samsung, TS=204
721	VP-2021   DCT-CI,	Unknown, TS=204
722	VP-2031   DCT-CI,	Philips, TS=188
723	VP-2040   DCT-CI,	Philips, TS=188, with CA daughter board
724	VP-2040   DCT-CI,	Philips, TS=204, without CA daughter board
725
726	Terrestrial
727	-------------------
728	VP-3050  DTTNXT			 TS=188
729	VP-3040  DTT-CI,	Philips, TS=188
730	VP-3040  DTT-CI,	Philips, TS=204
731
732	ATSC
733	-------------------
734	VP-3220  ATSCDI,		 TS=188
735	VP-3250  ATSCAD,		 TS=188
736
737*/
738
739static struct dst_types dst_tlist[] = {
740	{
741		.device_id = "200103A",
742		.offset = 0,
743		.dst_type =  DST_TYPE_IS_SAT,
744		.type_flags = DST_TYPE_HAS_SYMDIV | DST_TYPE_HAS_FW_1 | DST_TYPE_HAS_OBS_REGS,
745		.dst_feature = 0,
746		.tuner_type = 0
747	},	/*	obsolete	*/
748
749	{
750		.device_id = "DST-020",
751		.offset = 0,
752		.dst_type =  DST_TYPE_IS_SAT,
753		.type_flags = DST_TYPE_HAS_SYMDIV | DST_TYPE_HAS_FW_1,
754		.dst_feature = 0,
755		.tuner_type = 0
756	},	/*	obsolete	*/
757
758	{
759		.device_id = "DST-030",
760		.offset =  0,
761		.dst_type = DST_TYPE_IS_SAT,
762		.type_flags = DST_TYPE_HAS_TS204 | DST_TYPE_HAS_TS188 | DST_TYPE_HAS_FW_1,
763		.dst_feature = 0,
764		.tuner_type = 0
765	},	/*	obsolete	*/
766
767	{
768		.device_id = "DST-03T",
769		.offset = 0,
770		.dst_type = DST_TYPE_IS_SAT,
771		.type_flags = DST_TYPE_HAS_SYMDIV | DST_TYPE_HAS_TS204 | DST_TYPE_HAS_FW_2,
772		.dst_feature = DST_TYPE_HAS_DISEQC3 | DST_TYPE_HAS_DISEQC4 | DST_TYPE_HAS_DISEQC5
773							 | DST_TYPE_HAS_MAC | DST_TYPE_HAS_MOTO,
774		.tuner_type = TUNER_TYPE_MULTI
775	 },
776
777	{
778		.device_id = "DST-MOT",
779		.offset =  0,
780		.dst_type = DST_TYPE_IS_SAT,
781		.type_flags = DST_TYPE_HAS_SYMDIV | DST_TYPE_HAS_FW_1,
782		.dst_feature = 0,
783		.tuner_type = 0
784	},	/*	obsolete	*/
785
786	{
787		.device_id = "DST-CI",
788		.offset = 1,
789		.dst_type = DST_TYPE_IS_SAT,
790		.type_flags = DST_TYPE_HAS_TS204 | DST_TYPE_HAS_FW_1,
791		.dst_feature = DST_TYPE_HAS_CA,
792		.tuner_type = 0
793	},	/*	An OEM board	*/
794
795	{
796		.device_id = "DSTMCI",
797		.offset = 1,
798		.dst_type = DST_TYPE_IS_SAT,
799		.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,
800		.dst_feature = DST_TYPE_HAS_CA | DST_TYPE_HAS_DISEQC3 | DST_TYPE_HAS_DISEQC4
801							| DST_TYPE_HAS_MOTO | DST_TYPE_HAS_MAC,
802		.tuner_type = TUNER_TYPE_MULTI
803	},
804
805	{
806		.device_id = "DSTFCI",
807		.offset = 1,
808		.dst_type = DST_TYPE_IS_SAT,
809		.type_flags = DST_TYPE_HAS_TS188 | DST_TYPE_HAS_FW_1,
810		.dst_feature = 0,
811		.tuner_type = 0
812	},	/* unknown to vendor	*/
813
814	{
815		.device_id = "DCT-CI",
816		.offset = 1,
817		.dst_type = DST_TYPE_IS_CABLE,
818		.type_flags = DST_TYPE_HAS_MULTI_FE | DST_TYPE_HAS_FW_1	| DST_TYPE_HAS_FW_2 | DST_TYPE_HAS_VLF,
819		.dst_feature = DST_TYPE_HAS_CA,
820		.tuner_type = 0
821	},
822
823	{
824		.device_id = "DCTNEW",
825		.offset = 1,
826		.dst_type = DST_TYPE_IS_CABLE,
827		.type_flags = DST_TYPE_HAS_TS188 | DST_TYPE_HAS_FW_3 | DST_TYPE_HAS_FW_BUILD | DST_TYPE_HAS_MULTI_FE,
828		.dst_feature = 0,
829		.tuner_type = 0
830	},
831
832	{
833		.device_id = "DTT-CI",
834		.offset = 1,
835		.dst_type = DST_TYPE_IS_TERR,
836		.type_flags = DST_TYPE_HAS_FW_2 | DST_TYPE_HAS_MULTI_FE | DST_TYPE_HAS_VLF,
837		.dst_feature = DST_TYPE_HAS_CA,
838		.tuner_type = 0
839	},
840
841	{
842		.device_id = "DTTDIG",
843		.offset = 1,
844		.dst_type = DST_TYPE_IS_TERR,
845		.type_flags = DST_TYPE_HAS_FW_2,
846		.dst_feature = 0,
847		.tuner_type = 0
848	},
849
850	{
851		.device_id = "DTTNXT",
852		.offset = 1,
853		.dst_type = DST_TYPE_IS_TERR,
854		.type_flags = DST_TYPE_HAS_FW_2,
855		.dst_feature = DST_TYPE_HAS_ANALOG,
856		.tuner_type = 0
857	},
858
859	{
860		.device_id = "ATSCDI",
861		.offset = 1,
862		.dst_type = DST_TYPE_IS_ATSC,
863		.type_flags = DST_TYPE_HAS_FW_2,
864		.dst_feature = 0,
865		.tuner_type = 0
866	},
867
868	{
869		.device_id = "ATSCAD",
870		.offset = 1,
871		.dst_type = DST_TYPE_IS_ATSC,
872		.type_flags = DST_TYPE_HAS_MULTI_FE | DST_TYPE_HAS_FW_2 | DST_TYPE_HAS_FW_BUILD,
873		.dst_feature = DST_TYPE_HAS_MAC | DST_TYPE_HAS_ANALOG,
874		.tuner_type = 0
875	},
876
877	{ }
878
879};
880
881static int dst_get_mac(struct dst_state *state)
882{
883	u8 get_mac[] = { 0x00, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
884	get_mac[7] = dst_check_sum(get_mac, 7);
885	if (dst_command(state, get_mac, 8) < 0) {
886		dprintk(2, "Unsupported Command\n");
887		return -1;
888	}
889	memset(&state->mac_address, '\0', 8);
890	memcpy(&state->mac_address, &state->rxbuffer, 6);
891	pr_err("MAC Address=[%pM]\n", state->mac_address);
892
893	return 0;
894}
895
896static int dst_fw_ver(struct dst_state *state)
897{
898	u8 get_ver[] = { 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
899	get_ver[7] = dst_check_sum(get_ver, 7);
900	if (dst_command(state, get_ver, 8) < 0) {
901		dprintk(2, "Unsupported Command\n");
902		return -1;
903	}
904	memcpy(&state->fw_version, &state->rxbuffer, 8);
905	pr_err("Firmware Ver = %x.%x Build = %02x, on %x:%x, %x-%x-20%02x\n",
906		state->fw_version[0] >> 4, state->fw_version[0] & 0x0f,
907		state->fw_version[1],
908		state->fw_version[5], state->fw_version[6],
909		state->fw_version[4], state->fw_version[3], state->fw_version[2]);
910
911	return 0;
912}
913
914static int dst_card_type(struct dst_state *state)
915{
916	int j;
917	struct tuner_types *p_tuner_list = NULL;
918
919	u8 get_type[] = { 0x00, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
920	get_type[7] = dst_check_sum(get_type, 7);
921	if (dst_command(state, get_type, 8) < 0) {
922		dprintk(2, "Unsupported Command\n");
923		return -1;
924	}
925	memset(&state->card_info, '\0', 8);
926	memcpy(&state->card_info, &state->rxbuffer, 7);
927	pr_err("Device Model=[%s]\n", &state->card_info[0]);
928
929	for (j = 0, p_tuner_list = tuner_list; j < ARRAY_SIZE(tuner_list); j++, p_tuner_list++) {
930		if (!strcmp(&state->card_info[0], p_tuner_list->board_name)) {
931			state->tuner_type = p_tuner_list->tuner_type;
932			pr_err("DST has [%s] tuner, tuner type=[%d]\n",
933				p_tuner_list->tuner_name, p_tuner_list->tuner_type);
934		}
935	}
936
937	return 0;
938}
939
940static int dst_get_vendor(struct dst_state *state)
941{
942	u8 get_vendor[] = { 0x00, 0x12, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
943	get_vendor[7] = dst_check_sum(get_vendor, 7);
944	if (dst_command(state, get_vendor, 8) < 0) {
945		dprintk(2, "Unsupported Command\n");
946		return -1;
947	}
948	memset(&state->vendor, '\0', 8);
949	memcpy(&state->vendor, &state->rxbuffer, 7);
950	pr_err("Vendor=[%s]\n", &state->vendor[0]);
951
952	return 0;
953}
954
955static void debug_dst_buffer(struct dst_state *state)
956{
957	dprintk(3, "%s: [ %*ph ]\n", __func__, 8, state->rxbuffer);
958}
959
960static int dst_check_stv0299(struct dst_state *state)
961{
962	u8 check_stv0299[] = { 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
963
964	check_stv0299[7] = dst_check_sum(check_stv0299, 7);
965	if (dst_command(state, check_stv0299, 8) < 0) {
966		pr_err("Cmd=[0x04] failed\n");
967		return -1;
968	}
969	debug_dst_buffer(state);
970
971	if (memcmp(&check_stv0299, &state->rxbuffer, 8)) {
972		pr_err("Found a STV0299 NIM\n");
973		state->tuner_type = TUNER_TYPE_STV0299;
974		return 0;
975	}
976
977	return -1;
978}
979
980static int dst_check_mb86a15(struct dst_state *state)
981{
982	u8 check_mb86a15[] = { 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
983
984	check_mb86a15[7] = dst_check_sum(check_mb86a15, 7);
985	if (dst_command(state, check_mb86a15, 8) < 0) {
986		pr_err("Cmd=[0x10], failed\n");
987		return -1;
988	}
989	debug_dst_buffer(state);
990
991	if (memcmp(&check_mb86a15, &state->rxbuffer, 8) < 0) {
992		pr_err("Found a MB86A15 NIM\n");
993		state->tuner_type = TUNER_TYPE_MB86A15;
994		return 0;
995	}
996
997	return -1;
998}
999
1000static int dst_get_tuner_info(struct dst_state *state)
1001{
1002	u8 get_tuner_1[] = { 0x00, 0x13, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
1003	u8 get_tuner_2[] = { 0x00, 0x0b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
1004
1005	get_tuner_1[7] = dst_check_sum(get_tuner_1, 7);
1006	get_tuner_2[7] = dst_check_sum(get_tuner_2, 7);
1007	pr_err("DST TYpe = MULTI FE\n");
1008	if (state->type_flags & DST_TYPE_HAS_MULTI_FE) {
1009		if (dst_command(state, get_tuner_1, 8) < 0) {
1010			dprintk(2, "Cmd=[0x13], Unsupported\n");
1011			goto force;
1012		}
1013	} else {
1014		if (dst_command(state, get_tuner_2, 8) < 0) {
1015			dprintk(2, "Cmd=[0xb], Unsupported\n");
1016			goto force;
1017		}
1018	}
1019	memcpy(&state->board_info, &state->rxbuffer, 8);
1020	if (state->type_flags & DST_TYPE_HAS_MULTI_FE) {
1021		pr_err("DST type has TS=188\n");
1022	}
1023	if (state->board_info[0] == 0xbc) {
1024		if (state->dst_type != DST_TYPE_IS_ATSC)
1025			state->type_flags |= DST_TYPE_HAS_TS188;
1026		else
1027			state->type_flags |= DST_TYPE_HAS_NEWTUNE_2;
1028
1029		if (state->board_info[1] == 0x01) {
1030			state->dst_hw_cap |= DST_TYPE_HAS_DBOARD;
1031			pr_err("DST has Daughterboard\n");
1032		}
1033	}
1034
1035	return 0;
1036force:
1037	if (!strncmp(state->fw_name, "DCT-CI", 6)) {
1038		state->type_flags |= DST_TYPE_HAS_TS204;
1039		pr_err("Forcing [%s] to TS188\n", state->fw_name);
1040	}
1041
1042	return -1;
1043}
1044
1045static int dst_get_device_id(struct dst_state *state)
1046{
1047	u8 reply;
1048
1049	int i, j;
1050	struct dst_types *p_dst_type = NULL;
1051	struct tuner_types *p_tuner_list = NULL;
1052
1053	u8 use_dst_type = 0;
1054	u32 use_type_flags = 0;
1055
1056	static u8 device_type[8] = {0x00, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff};
1057
1058	state->tuner_type = 0;
1059	device_type[7] = dst_check_sum(device_type, 7);
1060
1061	if (write_dst(state, device_type, FIXED_COMM))
1062		return -1;		/*	Write failed		*/
1063	if ((dst_pio_disable(state)) < 0)
1064		return -1;
1065	if (read_dst(state, &reply, GET_ACK))
1066		return -1;		/*	Read failure		*/
1067	if (reply != ACK) {
1068		dprintk(2, "Write not Acknowledged! [Reply=0x%02x]\n", reply);
1069		return -1;		/*	Unack'd write		*/
1070	}
1071	if (!dst_wait_dst_ready(state, DEVICE_INIT))
1072		return -1;		/*	DST not ready yet	*/
1073	if (read_dst(state, state->rxbuffer, FIXED_COMM))
1074		return -1;
1075
1076	dst_pio_disable(state);
1077	if (state->rxbuffer[7] != dst_check_sum(state->rxbuffer, 7)) {
1078		dprintk(2, "Checksum failure!\n");
1079		return -1;		/*	Checksum failure	*/
1080	}
1081	state->rxbuffer[7] = '\0';
1082
1083	for (i = 0, p_dst_type = dst_tlist; i < ARRAY_SIZE(dst_tlist); i++, p_dst_type++) {
1084		if (!strncmp (&state->rxbuffer[p_dst_type->offset], p_dst_type->device_id, strlen (p_dst_type->device_id))) {
1085			use_type_flags = p_dst_type->type_flags;
1086			use_dst_type = p_dst_type->dst_type;
1087
1088			/*	Card capabilities	*/
1089			state->dst_hw_cap = p_dst_type->dst_feature;
1090			pr_err("Recognise [%s]\n", p_dst_type->device_id);
1091			strscpy(state->fw_name, p_dst_type->device_id,
1092			        sizeof(state->fw_name));
1093			/*	Multiple tuners		*/
1094			if (p_dst_type->tuner_type & TUNER_TYPE_MULTI) {
1095				switch (use_dst_type) {
1096				case DST_TYPE_IS_SAT:
1097					/*	STV0299 check	*/
1098					if (dst_check_stv0299(state) < 0) {
1099						pr_err("Unsupported\n");
1100						state->tuner_type = TUNER_TYPE_MB86A15;
1101					}
1102					break;
1103				default:
1104					break;
1105				}
1106				if (dst_check_mb86a15(state) < 0)
1107					pr_err("Unsupported\n");
1108			/*	Single tuner		*/
1109			} else {
1110				state->tuner_type = p_dst_type->tuner_type;
1111			}
1112			for (j = 0, p_tuner_list = tuner_list; j < ARRAY_SIZE(tuner_list); j++, p_tuner_list++) {
1113				if (!(strncmp(p_dst_type->device_id, p_tuner_list->fw_name, 7)) &&
1114					p_tuner_list->tuner_type == state->tuner_type) {
1115					pr_err("[%s] has a [%s]\n",
1116						p_dst_type->device_id, p_tuner_list->tuner_name);
1117				}
1118			}
1119			break;
1120		}
1121	}
1122
1123	if (i >= ARRAY_SIZE(dst_tlist)) {
1124		pr_err("Unable to recognize %s or %s\n", &state->rxbuffer[0], &state->rxbuffer[1]);
1125		pr_err("please email linux-dvb@linuxtv.org with this type in");
1126		use_dst_type = DST_TYPE_IS_SAT;
1127		use_type_flags = DST_TYPE_HAS_SYMDIV;
1128	}
1129	dst_type_print(state, use_dst_type);
1130	state->type_flags = use_type_flags;
1131	state->dst_type = use_dst_type;
1132	dst_type_flags_print(state);
1133
1134	return 0;
1135}
1136
1137static int dst_probe(struct dst_state *state)
1138{
1139	mutex_init(&state->dst_mutex);
1140	if (dst_addons & DST_TYPE_HAS_CA) {
1141		if ((rdc_8820_reset(state)) < 0) {
1142			pr_err("RDC 8820 RESET Failed.\n");
1143			return -1;
1144		}
1145		msleep(4000);
1146	} else {
1147		msleep(100);
1148	}
1149	if ((dst_comm_init(state)) < 0) {
1150		pr_err("DST Initialization Failed.\n");
1151		return -1;
1152	}
1153	msleep(100);
1154	if (dst_get_device_id(state) < 0) {
1155		pr_err("unknown device.\n");
1156		return -1;
1157	}
1158	if (dst_get_mac(state) < 0) {
1159		dprintk(2, "MAC: Unsupported command\n");
1160	}
1161	if ((state->type_flags & DST_TYPE_HAS_MULTI_FE) || (state->type_flags & DST_TYPE_HAS_FW_BUILD)) {
1162		if (dst_get_tuner_info(state) < 0)
1163			dprintk(2, "Tuner: Unsupported command\n");
1164	}
1165	if (state->type_flags & DST_TYPE_HAS_TS204) {
1166		dst_packsize(state, 204);
1167	}
1168	if (state->type_flags & DST_TYPE_HAS_FW_BUILD) {
1169		if (dst_fw_ver(state) < 0) {
1170			dprintk(2, "FW: Unsupported command\n");
1171			return 0;
1172		}
1173		if (dst_card_type(state) < 0) {
1174			dprintk(2, "Card: Unsupported command\n");
1175			return 0;
1176		}
1177		if (dst_get_vendor(state) < 0) {
1178			dprintk(2, "Vendor: Unsupported command\n");
1179			return 0;
1180		}
1181	}
1182
1183	return 0;
1184}
1185
1186static int dst_command(struct dst_state *state, u8 *data, u8 len)
1187{
1188	u8 reply;
1189
1190	mutex_lock(&state->dst_mutex);
1191	if ((dst_comm_init(state)) < 0) {
1192		dprintk(1, "DST Communication Initialization Failed.\n");
1193		goto error;
1194	}
1195	if (write_dst(state, data, len)) {
1196		dprintk(2, "Trying to recover..\n");
1197		if ((dst_error_recovery(state)) < 0) {
1198			pr_err("Recovery Failed.\n");
1199			goto error;
1200		}
1201		goto error;
1202	}
1203	if ((dst_pio_disable(state)) < 0) {
1204		pr_err("PIO Disable Failed.\n");
1205		goto error;
1206	}
1207	if (state->type_flags & DST_TYPE_HAS_FW_1)
1208		mdelay(3);
1209	if (read_dst(state, &reply, GET_ACK)) {
1210		dprintk(3, "Trying to recover..\n");
1211		if ((dst_error_recovery(state)) < 0) {
1212			dprintk(2, "Recovery Failed.\n");
1213			goto error;
1214		}
1215		goto error;
1216	}
1217	if (reply != ACK) {
1218		dprintk(2, "write not acknowledged 0x%02x\n", reply);
1219		goto error;
1220	}
1221	if (len >= 2 && data[0] == 0 && (data[1] == 1 || data[1] == 3))
1222		goto error;
1223	if (state->type_flags & DST_TYPE_HAS_FW_1)
1224		mdelay(3);
1225	else
1226		udelay(2000);
1227	if (!dst_wait_dst_ready(state, NO_DELAY))
1228		goto error;
1229	if (read_dst(state, state->rxbuffer, FIXED_COMM)) {
1230		dprintk(3, "Trying to recover..\n");
1231		if ((dst_error_recovery(state)) < 0) {
1232			dprintk(2, "Recovery failed.\n");
1233			goto error;
1234		}
1235		goto error;
1236	}
1237	if (state->rxbuffer[7] != dst_check_sum(state->rxbuffer, 7)) {
1238		dprintk(2, "checksum failure\n");
1239		goto error;
1240	}
1241	mutex_unlock(&state->dst_mutex);
1242	return 0;
1243
1244error:
1245	mutex_unlock(&state->dst_mutex);
1246	return -EIO;
1247
1248}
1249
1250static int dst_get_signal(struct dst_state *state)
1251{
1252	int retval;
1253	u8 get_signal[] = { 0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfb };
1254	//dprintk("%s: Getting Signal strength and other parameters\n", __func__);
1255	if ((state->diseq_flags & ATTEMPT_TUNE) == 0) {
1256		state->decode_lock = state->decode_strength = state->decode_snr = 0;
1257		return 0;
1258	}
1259	if (0 == (state->diseq_flags & HAS_LOCK)) {
1260		state->decode_lock = state->decode_strength = state->decode_snr = 0;
1261		return 0;
1262	}
1263	if (time_after_eq(jiffies, state->cur_jiff + (HZ / 5))) {
1264		retval = dst_command(state, get_signal, 8);
1265		if (retval < 0)
1266			return retval;
1267		if (state->dst_type == DST_TYPE_IS_SAT) {
1268			state->decode_lock = ((state->rxbuffer[6] & 0x10) == 0) ? 1 : 0;
1269			state->decode_strength = state->rxbuffer[5] << 8;
1270			state->decode_snr = state->rxbuffer[2] << 8 | state->rxbuffer[3];
1271		} else if ((state->dst_type == DST_TYPE_IS_TERR) || (state->dst_type == DST_TYPE_IS_CABLE)) {
1272			state->decode_lock = (state->rxbuffer[1]) ? 1 : 0;
1273			state->decode_strength = state->rxbuffer[4] << 8;
1274			state->decode_snr = state->rxbuffer[3] << 8;
1275		} else if (state->dst_type == DST_TYPE_IS_ATSC) {
1276			state->decode_lock = (state->rxbuffer[6] == 0x00) ? 1 : 0;
1277			state->decode_strength = state->rxbuffer[4] << 8;
1278			state->decode_snr = state->rxbuffer[2] << 8 | state->rxbuffer[3];
1279		}
1280		state->cur_jiff = jiffies;
1281	}
1282	return 0;
1283}
1284
1285static int dst_tone_power_cmd(struct dst_state *state)
1286{
1287	u8 packet[8] = { 0x00, 0x09, 0xff, 0xff, 0x01, 0x00, 0x00, 0x00 };
1288
1289	if (state->dst_type != DST_TYPE_IS_SAT)
1290		return -EOPNOTSUPP;
1291	packet[4] = state->tx_tuna[4];
1292	packet[2] = state->tx_tuna[2];
1293	packet[3] = state->tx_tuna[3];
1294	packet[7] = dst_check_sum (packet, 7);
1295	return dst_command(state, packet, 8);
1296}
1297
1298static int dst_get_tuna(struct dst_state *state)
1299{
1300	int retval;
1301
1302	if ((state->diseq_flags & ATTEMPT_TUNE) == 0)
1303		return 0;
1304	state->diseq_flags &= ~(HAS_LOCK);
1305	if (!dst_wait_dst_ready(state, NO_DELAY))
1306		return -EIO;
1307	if ((state->type_flags & DST_TYPE_HAS_VLF) &&
1308		!(state->dst_type == DST_TYPE_IS_ATSC))
1309
1310		retval = read_dst(state, state->rx_tuna, 10);
1311	else
1312		retval = read_dst(state, &state->rx_tuna[2], FIXED_COMM);
1313	if (retval < 0) {
1314		dprintk(3, "read not successful\n");
1315		return retval;
1316	}
1317	if ((state->type_flags & DST_TYPE_HAS_VLF) &&
1318	   !(state->dst_type == DST_TYPE_IS_ATSC)) {
1319
1320		if (state->rx_tuna[9] != dst_check_sum(&state->rx_tuna[0], 9)) {
1321			dprintk(2, "checksum failure ?\n");
1322			return -EIO;
1323		}
1324	} else {
1325		if (state->rx_tuna[9] != dst_check_sum(&state->rx_tuna[2], 7)) {
1326			dprintk(2, "checksum failure?\n");
1327			return -EIO;
1328		}
1329	}
1330	if (state->rx_tuna[2] == 0 && state->rx_tuna[3] == 0)
1331		return 0;
1332	if (state->dst_type == DST_TYPE_IS_SAT) {
1333		state->decode_freq = ((state->rx_tuna[2] & 0x7f) << 8) + state->rx_tuna[3];
1334	} else {
1335		state->decode_freq = ((state->rx_tuna[2] & 0x7f) << 16) + (state->rx_tuna[3] << 8) + state->rx_tuna[4];
1336	}
1337	state->decode_freq = state->decode_freq * 1000;
1338	state->decode_lock = 1;
1339	state->diseq_flags |= HAS_LOCK;
1340
1341	return 1;
1342}
1343
1344static int dst_set_voltage(struct dvb_frontend *fe,
1345			   enum fe_sec_voltage voltage);
1346
1347static int dst_write_tuna(struct dvb_frontend *fe)
1348{
1349	struct dst_state *state = fe->demodulator_priv;
1350	int retval;
1351	u8 reply;
1352
1353	dprintk(2, "type_flags 0x%x\n", state->type_flags);
1354	state->decode_freq = 0;
1355	state->decode_lock = state->decode_strength = state->decode_snr = 0;
1356	if (state->dst_type == DST_TYPE_IS_SAT) {
1357		if (!(state->diseq_flags & HAS_POWER))
1358			dst_set_voltage(fe, SEC_VOLTAGE_13);
1359	}
1360	state->diseq_flags &= ~(HAS_LOCK | ATTEMPT_TUNE);
1361	mutex_lock(&state->dst_mutex);
1362	if ((dst_comm_init(state)) < 0) {
1363		dprintk(3, "DST Communication initialization failed.\n");
1364		goto error;
1365	}
1366//	if (state->type_flags & DST_TYPE_HAS_NEWTUNE) {
1367	if ((state->type_flags & DST_TYPE_HAS_VLF) &&
1368		(!(state->dst_type == DST_TYPE_IS_ATSC))) {
1369
1370		state->tx_tuna[9] = dst_check_sum(&state->tx_tuna[0], 9);
1371		retval = write_dst(state, &state->tx_tuna[0], 10);
1372	} else {
1373		state->tx_tuna[9] = dst_check_sum(&state->tx_tuna[2], 7);
1374		retval = write_dst(state, &state->tx_tuna[2], FIXED_COMM);
1375	}
1376	if (retval < 0) {
1377		dst_pio_disable(state);
1378		dprintk(3, "write not successful\n");
1379		goto werr;
1380	}
1381	if ((dst_pio_disable(state)) < 0) {
1382		dprintk(3, "DST PIO disable failed !\n");
1383		goto error;
1384	}
1385	if ((read_dst(state, &reply, GET_ACK) < 0)) {
1386		dprintk(3, "read verify not successful.\n");
1387		goto error;
1388	}
1389	if (reply != ACK) {
1390		dprintk(3, "write not acknowledged 0x%02x\n", reply);
1391		goto error;
1392	}
1393	state->diseq_flags |= ATTEMPT_TUNE;
1394	retval = dst_get_tuna(state);
1395werr:
1396	mutex_unlock(&state->dst_mutex);
1397	return retval;
1398
1399error:
1400	mutex_unlock(&state->dst_mutex);
1401	return -EIO;
1402}
1403
1404/*
1405 * line22k0    0x00, 0x09, 0x00, 0xff, 0x01, 0x00, 0x00, 0x00
1406 * line22k1    0x00, 0x09, 0x01, 0xff, 0x01, 0x00, 0x00, 0x00
1407 * line22k2    0x00, 0x09, 0x02, 0xff, 0x01, 0x00, 0x00, 0x00
1408 * tone        0x00, 0x09, 0xff, 0x00, 0x01, 0x00, 0x00, 0x00
1409 * data        0x00, 0x09, 0xff, 0x01, 0x01, 0x00, 0x00, 0x00
1410 * power_off   0x00, 0x09, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00
1411 * power_on    0x00, 0x09, 0xff, 0xff, 0x01, 0x00, 0x00, 0x00
1412 * Diseqc 1    0x00, 0x08, 0x04, 0xe0, 0x10, 0x38, 0xf0, 0xec
1413 * Diseqc 2    0x00, 0x08, 0x04, 0xe0, 0x10, 0x38, 0xf4, 0xe8
1414 * Diseqc 3    0x00, 0x08, 0x04, 0xe0, 0x10, 0x38, 0xf8, 0xe4
1415 * Diseqc 4    0x00, 0x08, 0x04, 0xe0, 0x10, 0x38, 0xfc, 0xe0
1416 */
1417
1418static int dst_set_diseqc(struct dvb_frontend *fe, struct dvb_diseqc_master_cmd *cmd)
1419{
1420	struct dst_state *state = fe->demodulator_priv;
1421	u8 packet[8] = { 0x00, 0x08, 0x04, 0xe0, 0x10, 0x38, 0xf0, 0xec };
1422
1423	if (state->dst_type != DST_TYPE_IS_SAT)
1424		return -EOPNOTSUPP;
1425	if (cmd->msg_len > 0 && cmd->msg_len < 5)
1426		memcpy(&packet[3], cmd->msg, cmd->msg_len);
1427	else if (cmd->msg_len == 5 && state->dst_hw_cap & DST_TYPE_HAS_DISEQC5)
1428		memcpy(&packet[2], cmd->msg, cmd->msg_len);
1429	else
1430		return -EINVAL;
1431	packet[7] = dst_check_sum(&packet[0], 7);
1432	return dst_command(state, packet, 8);
1433}
1434
1435static int dst_set_voltage(struct dvb_frontend *fe, enum fe_sec_voltage voltage)
1436{
1437	int need_cmd, retval = 0;
1438	struct dst_state *state = fe->demodulator_priv;
1439
1440	state->voltage = voltage;
1441	if (state->dst_type != DST_TYPE_IS_SAT)
1442		return -EOPNOTSUPP;
1443
1444	need_cmd = 0;
1445
1446	switch (voltage) {
1447	case SEC_VOLTAGE_13:
1448	case SEC_VOLTAGE_18:
1449		if ((state->diseq_flags & HAS_POWER) == 0)
1450			need_cmd = 1;
1451		state->diseq_flags |= HAS_POWER;
1452		state->tx_tuna[4] = 0x01;
1453		break;
1454	case SEC_VOLTAGE_OFF:
1455		need_cmd = 1;
1456		state->diseq_flags &= ~(HAS_POWER | HAS_LOCK | ATTEMPT_TUNE);
1457		state->tx_tuna[4] = 0x00;
1458		break;
1459	default:
1460		return -EINVAL;
1461	}
1462
1463	if (need_cmd)
1464		retval = dst_tone_power_cmd(state);
1465
1466	return retval;
1467}
1468
1469static int dst_set_tone(struct dvb_frontend *fe, enum fe_sec_tone_mode tone)
1470{
1471	struct dst_state *state = fe->demodulator_priv;
1472
1473	state->tone = tone;
1474	if (state->dst_type != DST_TYPE_IS_SAT)
1475		return -EOPNOTSUPP;
1476
1477	switch (tone) {
1478	case SEC_TONE_OFF:
1479		if (state->type_flags & DST_TYPE_HAS_OBS_REGS)
1480		    state->tx_tuna[2] = 0x00;
1481		else
1482		    state->tx_tuna[2] = 0xff;
1483		break;
1484
1485	case SEC_TONE_ON:
1486		state->tx_tuna[2] = 0x02;
1487		break;
1488	default:
1489		return -EINVAL;
1490	}
1491	return dst_tone_power_cmd(state);
1492}
1493
1494static int dst_send_burst(struct dvb_frontend *fe, enum fe_sec_mini_cmd minicmd)
1495{
1496	struct dst_state *state = fe->demodulator_priv;
1497
1498	if (state->dst_type != DST_TYPE_IS_SAT)
1499		return -EOPNOTSUPP;
1500	state->minicmd = minicmd;
1501	switch (minicmd) {
1502	case SEC_MINI_A:
1503		state->tx_tuna[3] = 0x02;
1504		break;
1505	case SEC_MINI_B:
1506		state->tx_tuna[3] = 0xff;
1507		break;
1508	}
1509	return dst_tone_power_cmd(state);
1510}
1511
1512
1513static int bt8xx_dst_init(struct dvb_frontend *fe)
1514{
1515	struct dst_state *state = fe->demodulator_priv;
1516
1517	static u8 sat_tuna_188[] = { 0x09, 0x00, 0x03, 0xb6, 0x01, 0x00, 0x73, 0x21, 0x00, 0x00 };
1518	static u8 sat_tuna_204[] = { 0x00, 0x00, 0x03, 0xb6, 0x01, 0x55, 0xbd, 0x50, 0x00, 0x00 };
1519	static u8 ter_tuna_188[] = { 0x09, 0x00, 0x03, 0xb6, 0x01, 0x07, 0x00, 0x00, 0x00, 0x00 };
1520	static u8 ter_tuna_204[] = { 0x00, 0x00, 0x03, 0xb6, 0x01, 0x07, 0x00, 0x00, 0x00, 0x00 };
1521	static u8 cab_tuna_188[] = { 0x09, 0x00, 0x03, 0xb6, 0x01, 0x07, 0x00, 0x00, 0x00, 0x00 };
1522	static u8 cab_tuna_204[] = { 0x00, 0x00, 0x03, 0xb6, 0x01, 0x07, 0x00, 0x00, 0x00, 0x00 };
1523	static u8 atsc_tuner[] = { 0x00, 0x00, 0x03, 0xb6, 0x01, 0x07, 0x00, 0x00, 0x00, 0x00 };
1524
1525	state->inversion = INVERSION_OFF;
1526	state->voltage = SEC_VOLTAGE_13;
1527	state->tone = SEC_TONE_OFF;
1528	state->diseq_flags = 0;
1529	state->k22 = 0x02;
1530	state->bandwidth = 7000000;
1531	state->cur_jiff = jiffies;
1532	if (state->dst_type == DST_TYPE_IS_SAT)
1533		memcpy(state->tx_tuna, ((state->type_flags & DST_TYPE_HAS_VLF) ? sat_tuna_188 : sat_tuna_204), sizeof (sat_tuna_204));
1534	else if (state->dst_type == DST_TYPE_IS_TERR)
1535		memcpy(state->tx_tuna, ((state->type_flags & DST_TYPE_HAS_VLF) ? ter_tuna_188 : ter_tuna_204), sizeof (ter_tuna_204));
1536	else if (state->dst_type == DST_TYPE_IS_CABLE)
1537		memcpy(state->tx_tuna, ((state->type_flags & DST_TYPE_HAS_VLF) ? cab_tuna_188 : cab_tuna_204), sizeof (cab_tuna_204));
1538	else if (state->dst_type == DST_TYPE_IS_ATSC)
1539		memcpy(state->tx_tuna, atsc_tuner, sizeof (atsc_tuner));
1540
1541	return 0;
1542}
1543
1544static int dst_read_status(struct dvb_frontend *fe, enum fe_status *status)
1545{
1546	struct dst_state *state = fe->demodulator_priv;
1547
1548	*status = 0;
1549	if (state->diseq_flags & HAS_LOCK) {
1550//		dst_get_signal(state);	// don't require(?) to ask MCU
1551		if (state->decode_lock)
1552			*status |= FE_HAS_LOCK | FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_SYNC | FE_HAS_VITERBI;
1553	}
1554
1555	return 0;
1556}
1557
1558static int dst_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
1559{
1560	struct dst_state *state = fe->demodulator_priv;
1561
1562	int retval = dst_get_signal(state);
1563	*strength = state->decode_strength;
1564
1565	return retval;
1566}
1567
1568static int dst_read_snr(struct dvb_frontend *fe, u16 *snr)
1569{
1570	struct dst_state *state = fe->demodulator_priv;
1571
1572	int retval = dst_get_signal(state);
1573	*snr = state->decode_snr;
1574
1575	return retval;
1576}
1577
1578static int dst_set_frontend(struct dvb_frontend *fe)
1579{
1580	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
1581	int retval = -EINVAL;
1582	struct dst_state *state = fe->demodulator_priv;
1583
1584	if (p != NULL) {
1585		retval = dst_set_freq(state, p->frequency);
1586		if(retval != 0)
1587			return retval;
1588		dprintk(3, "Set Frequency=[%d]\n", p->frequency);
1589
1590		if (state->dst_type == DST_TYPE_IS_SAT) {
1591			if (state->type_flags & DST_TYPE_HAS_OBS_REGS)
1592				dst_set_inversion(state, p->inversion);
1593			dst_set_fec(state, p->fec_inner);
1594			dst_set_symbolrate(state, p->symbol_rate);
1595			dst_set_polarization(state);
1596			dprintk(3, "Set Symbolrate=[%d]\n", p->symbol_rate);
1597
1598		} else if (state->dst_type == DST_TYPE_IS_TERR)
1599			dst_set_bandwidth(state, p->bandwidth_hz);
1600		else if (state->dst_type == DST_TYPE_IS_CABLE) {
1601			dst_set_fec(state, p->fec_inner);
1602			dst_set_symbolrate(state, p->symbol_rate);
1603			dst_set_modulation(state, p->modulation);
1604		}
1605		retval = dst_write_tuna(fe);
1606	}
1607
1608	return retval;
1609}
1610
1611static int dst_tune_frontend(struct dvb_frontend* fe,
1612			    bool re_tune,
1613			    unsigned int mode_flags,
1614			    unsigned int *delay,
1615			    enum fe_status *status)
1616{
1617	struct dst_state *state = fe->demodulator_priv;
1618	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
1619
1620	if (re_tune) {
1621		dst_set_freq(state, p->frequency);
1622		dprintk(3, "Set Frequency=[%d]\n", p->frequency);
1623
1624		if (state->dst_type == DST_TYPE_IS_SAT) {
1625			if (state->type_flags & DST_TYPE_HAS_OBS_REGS)
1626				dst_set_inversion(state, p->inversion);
1627			dst_set_fec(state, p->fec_inner);
1628			dst_set_symbolrate(state, p->symbol_rate);
1629			dst_set_polarization(state);
1630			dprintk(3, "Set Symbolrate=[%d]\n", p->symbol_rate);
1631
1632		} else if (state->dst_type == DST_TYPE_IS_TERR)
1633			dst_set_bandwidth(state, p->bandwidth_hz);
1634		else if (state->dst_type == DST_TYPE_IS_CABLE) {
1635			dst_set_fec(state, p->fec_inner);
1636			dst_set_symbolrate(state, p->symbol_rate);
1637			dst_set_modulation(state, p->modulation);
1638		}
1639		dst_write_tuna(fe);
1640	}
1641
1642	if (!(mode_flags & FE_TUNE_MODE_ONESHOT))
1643		dst_read_status(fe, status);
1644
1645	*delay = HZ/10;
1646	return 0;
1647}
1648
1649static enum dvbfe_algo dst_get_tuning_algo(struct dvb_frontend *fe)
1650{
1651	return dst_algo ? DVBFE_ALGO_HW : DVBFE_ALGO_SW;
1652}
1653
1654static int dst_get_frontend(struct dvb_frontend *fe,
1655			    struct dtv_frontend_properties *p)
1656{
1657	struct dst_state *state = fe->demodulator_priv;
1658
1659	p->frequency = state->decode_freq;
1660	if (state->dst_type == DST_TYPE_IS_SAT) {
1661		if (state->type_flags & DST_TYPE_HAS_OBS_REGS)
1662			p->inversion = state->inversion;
1663		p->symbol_rate = state->symbol_rate;
1664		p->fec_inner = dst_get_fec(state);
1665	} else if (state->dst_type == DST_TYPE_IS_TERR) {
1666		p->bandwidth_hz = state->bandwidth;
1667	} else if (state->dst_type == DST_TYPE_IS_CABLE) {
1668		p->symbol_rate = state->symbol_rate;
1669		p->fec_inner = dst_get_fec(state);
1670		p->modulation = dst_get_modulation(state);
1671	}
1672
1673	return 0;
1674}
1675
1676static void bt8xx_dst_release(struct dvb_frontend *fe)
1677{
1678	struct dst_state *state = fe->demodulator_priv;
1679	if (state->dst_ca) {
1680		dvb_unregister_device(state->dst_ca);
1681#ifdef CONFIG_MEDIA_ATTACH
1682		symbol_put(dst_ca_attach);
1683#endif
1684	}
1685	kfree(state);
1686}
1687
1688static const struct dvb_frontend_ops dst_dvbt_ops;
1689static const struct dvb_frontend_ops dst_dvbs_ops;
1690static const struct dvb_frontend_ops dst_dvbc_ops;
1691static const struct dvb_frontend_ops dst_atsc_ops;
1692
1693struct dst_state *dst_attach(struct dst_state *state, struct dvb_adapter *dvb_adapter)
1694{
1695	/* check if the ASIC is there */
1696	if (dst_probe(state) < 0) {
1697		kfree(state);
1698		return NULL;
1699	}
1700	/* determine settings based on type */
1701	/* create dvb_frontend */
1702	switch (state->dst_type) {
1703	case DST_TYPE_IS_TERR:
1704		memcpy(&state->frontend.ops, &dst_dvbt_ops, sizeof(struct dvb_frontend_ops));
1705		break;
1706	case DST_TYPE_IS_CABLE:
1707		memcpy(&state->frontend.ops, &dst_dvbc_ops, sizeof(struct dvb_frontend_ops));
1708		break;
1709	case DST_TYPE_IS_SAT:
1710		memcpy(&state->frontend.ops, &dst_dvbs_ops, sizeof(struct dvb_frontend_ops));
1711		break;
1712	case DST_TYPE_IS_ATSC:
1713		memcpy(&state->frontend.ops, &dst_atsc_ops, sizeof(struct dvb_frontend_ops));
1714		break;
1715	default:
1716		pr_err("unknown DST type. please report to the LinuxTV.org DVB mailinglist.\n");
1717		kfree(state);
1718		return NULL;
1719	}
1720	state->frontend.demodulator_priv = state;
1721
1722	return state;				/*	Manu (DST is a card not a frontend)	*/
1723}
1724
1725EXPORT_SYMBOL_GPL(dst_attach);
1726
1727static const struct dvb_frontend_ops dst_dvbt_ops = {
1728	.delsys = { SYS_DVBT },
1729	.info = {
1730		.name = "DST DVB-T",
1731		.frequency_min_hz = 137 * MHz,
1732		.frequency_max_hz = 858 * MHz,
1733		.frequency_stepsize_hz = 166667,
1734		.caps = FE_CAN_FEC_AUTO			|
1735			FE_CAN_QAM_AUTO			|
1736			FE_CAN_QAM_16			|
1737			FE_CAN_QAM_32			|
1738			FE_CAN_QAM_64			|
1739			FE_CAN_QAM_128			|
1740			FE_CAN_QAM_256			|
1741			FE_CAN_TRANSMISSION_MODE_AUTO	|
1742			FE_CAN_GUARD_INTERVAL_AUTO
1743	},
1744
1745	.release = bt8xx_dst_release,
1746	.init = bt8xx_dst_init,
1747	.tune = dst_tune_frontend,
1748	.set_frontend = dst_set_frontend,
1749	.get_frontend = dst_get_frontend,
1750	.get_frontend_algo = dst_get_tuning_algo,
1751	.read_status = dst_read_status,
1752	.read_signal_strength = dst_read_signal_strength,
1753	.read_snr = dst_read_snr,
1754};
1755
1756static const struct dvb_frontend_ops dst_dvbs_ops = {
1757	.delsys = { SYS_DVBS },
1758	.info = {
1759		.name = "DST DVB-S",
1760		.frequency_min_hz   =  950 * MHz,
1761		.frequency_max_hz   = 2150 * MHz,
1762		.frequency_stepsize_hz = 1 * MHz,
1763		.frequency_tolerance_hz = 29500 * kHz,
1764		.symbol_rate_min = 1000000,
1765		.symbol_rate_max = 45000000,
1766	/*     . symbol_rate_tolerance	=	???,*/
1767		.caps = FE_CAN_FEC_AUTO | FE_CAN_QPSK
1768	},
1769
1770	.release = bt8xx_dst_release,
1771	.init = bt8xx_dst_init,
1772	.tune = dst_tune_frontend,
1773	.set_frontend = dst_set_frontend,
1774	.get_frontend = dst_get_frontend,
1775	.get_frontend_algo = dst_get_tuning_algo,
1776	.read_status = dst_read_status,
1777	.read_signal_strength = dst_read_signal_strength,
1778	.read_snr = dst_read_snr,
1779	.diseqc_send_burst = dst_send_burst,
1780	.diseqc_send_master_cmd = dst_set_diseqc,
1781	.set_voltage = dst_set_voltage,
1782	.set_tone = dst_set_tone,
1783};
1784
1785static const struct dvb_frontend_ops dst_dvbc_ops = {
1786	.delsys = { SYS_DVBC_ANNEX_A },
1787	.info = {
1788		.name = "DST DVB-C",
1789		.frequency_min_hz =  51 * MHz,
1790		.frequency_max_hz = 858 * MHz,
1791		.frequency_stepsize_hz = 62500,
1792		.symbol_rate_min = 1000000,
1793		.symbol_rate_max = 45000000,
1794		.caps = FE_CAN_FEC_AUTO |
1795			FE_CAN_QAM_AUTO |
1796			FE_CAN_QAM_16	|
1797			FE_CAN_QAM_32	|
1798			FE_CAN_QAM_64	|
1799			FE_CAN_QAM_128	|
1800			FE_CAN_QAM_256
1801	},
1802
1803	.release = bt8xx_dst_release,
1804	.init = bt8xx_dst_init,
1805	.tune = dst_tune_frontend,
1806	.set_frontend = dst_set_frontend,
1807	.get_frontend = dst_get_frontend,
1808	.get_frontend_algo = dst_get_tuning_algo,
1809	.read_status = dst_read_status,
1810	.read_signal_strength = dst_read_signal_strength,
1811	.read_snr = dst_read_snr,
1812};
1813
1814static const struct dvb_frontend_ops dst_atsc_ops = {
1815	.delsys = { SYS_ATSC },
1816	.info = {
1817		.name = "DST ATSC",
1818		.frequency_min_hz = 510 * MHz,
1819		.frequency_max_hz = 858 * MHz,
1820		.frequency_stepsize_hz = 62500,
1821		.symbol_rate_min = 1000000,
1822		.symbol_rate_max = 45000000,
1823		.caps = FE_CAN_FEC_AUTO | FE_CAN_QAM_AUTO | FE_CAN_QAM_64 | FE_CAN_QAM_256 | FE_CAN_8VSB
1824	},
1825
1826	.release = bt8xx_dst_release,
1827	.init = bt8xx_dst_init,
1828	.tune = dst_tune_frontend,
1829	.set_frontend = dst_set_frontend,
1830	.get_frontend = dst_get_frontend,
1831	.get_frontend_algo = dst_get_tuning_algo,
1832	.read_status = dst_read_status,
1833	.read_signal_strength = dst_read_signal_strength,
1834	.read_snr = dst_read_snr,
1835};
1836
1837MODULE_DESCRIPTION("DST DVB-S/T/C/ATSC Combo Frontend driver");
1838MODULE_AUTHOR("Jamie Honan, Manu Abraham");
1839MODULE_LICENSE("GPL");
1840