Free Electrons

Embedded Linux Experts

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
/*
 * pluto2.c - Satelco Easywatch Mobile Terrestrial Receiver [DVB-T]
 *
 * Copyright (C) 2005 Andreas Oberritter <obi@linuxtv.org>
 *
 * based on pluto2.c 1.10 - http://instinct-wp8.no-ip.org/pluto/
 * 	by Dany Salman <salmandany@yahoo.fr>
 *	Copyright (c) 2004 TDF
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 */

#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/dma-mapping.h>
#include <linux/slab.h>

#include "demux.h"
#include "dmxdev.h"
#include "dvb_demux.h"
#include "dvb_frontend.h"
#include "dvb_net.h"
#include "dvbdev.h"
#include "tda1004x.h"

DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);

#define DRIVER_NAME		"pluto2"

#define REG_PIDn(n)		((n) << 2)	/* PID n pattern registers */
#define REG_PCAR		0x0020		/* PC address register */
#define REG_TSCR		0x0024		/* TS ctrl & status */
#define REG_MISC		0x0028		/* miscellaneous */
#define REG_MMAC		0x002c		/* MSB MAC address */
#define REG_IMAC		0x0030		/* ISB MAC address */
#define REG_LMAC		0x0034		/* LSB MAC address */
#define REG_SPID		0x0038		/* SPI data */
#define REG_SLCS		0x003c		/* serial links ctrl/status */

#define PID0_NOFIL		(0x0001 << 16)
#define PIDn_ENP		(0x0001 << 15)
#define PID0_END		(0x0001 << 14)
#define PID0_AFIL		(0x0001 << 13)
#define PIDn_PID		(0x1fff <<  0)

#define TSCR_NBPACKETS		(0x00ff << 24)
#define TSCR_DEM		(0x0001 << 17)
#define TSCR_DE			(0x0001 << 16)
#define TSCR_RSTN		(0x0001 << 15)
#define TSCR_MSKO		(0x0001 << 14)
#define TSCR_MSKA		(0x0001 << 13)
#define TSCR_MSKL		(0x0001 << 12)
#define TSCR_OVR		(0x0001 << 11)
#define TSCR_AFUL		(0x0001 << 10)
#define TSCR_LOCK		(0x0001 <<  9)
#define TSCR_IACK		(0x0001 <<  8)
#define TSCR_ADEF		(0x007f <<  0)

#define MISC_DVR		(0x0fff <<  4)
#define MISC_ALED		(0x0001 <<  3)
#define MISC_FRST		(0x0001 <<  2)
#define MISC_LED1		(0x0001 <<  1)
#define MISC_LED0		(0x0001 <<  0)

#define SPID_SPIDR		(0x00ff <<  0)

#define SLCS_SCL		(0x0001 <<  7)
#define SLCS_SDA		(0x0001 <<  6)
#define SLCS_CSN		(0x0001 <<  2)
#define SLCS_OVR		(0x0001 <<  1)
#define SLCS_SWC		(0x0001 <<  0)

#define TS_DMA_PACKETS		(8)
#define TS_DMA_BYTES		(188 * TS_DMA_PACKETS)

#define I2C_ADDR_TDA10046	0x10
#define I2C_ADDR_TUA6034	0xc2
#define NHWFILTERS		8

struct pluto {
	/* pci */
	struct pci_dev *pdev;
	u8 __iomem *io_mem;

	/* dvb */
	struct dmx_frontend hw_frontend;
	struct dmx_frontend mem_frontend;
	struct dmxdev dmxdev;
	struct dvb_adapter dvb_adapter;
	struct dvb_demux demux;
	struct dvb_frontend *fe;
	struct dvb_net dvbnet;
	unsigned int full_ts_users;
	unsigned int users;

	/* i2c */
	struct i2c_algo_bit_data i2c_bit;
	struct i2c_adapter i2c_adap;
	unsigned int i2cbug;

	/* irq */
	unsigned int overflow;
	unsigned int dead;

	/* dma */
	dma_addr_t dma_addr;
	u8 dma_buf[TS_DMA_BYTES];
	u8 dummy[4096];
};

static inline struct pluto *feed_to_pluto(struct dvb_demux_feed *feed)
{
	return container_of(feed->demux, struct pluto, demux);
}

static inline struct pluto *frontend_to_pluto(struct dvb_frontend *fe)
{
	return container_of(fe->dvb, struct pluto, dvb_adapter);
}

static inline u32 pluto_readreg(struct pluto *pluto, u32 reg)
{
	return readl(&pluto->io_mem[reg]);
}

static inline void pluto_writereg(struct pluto *pluto, u32 reg, u32 val)
{
	writel(val, &pluto->io_mem[reg]);
}

static inline void pluto_rw(struct pluto *pluto, u32 reg, u32 mask, u32 bits)
{
	u32 val = readl(&pluto->io_mem[reg]);
	val &= ~mask;
	val |= bits;
	writel(val, &pluto->io_mem[reg]);
}

static void pluto_write_tscr(struct pluto *pluto, u32 val)
{
	/* set the number of packets */
	val &= ~TSCR_ADEF;
	val |= TS_DMA_PACKETS / 2;

	pluto_writereg(pluto, REG_TSCR, val);
}

static void pluto_setsda(void *data, int state)
{
	struct pluto *pluto = data;

	if (state)
		pluto_rw(pluto, REG_SLCS, SLCS_SDA, SLCS_SDA);
	else
		pluto_rw(pluto, REG_SLCS, SLCS_SDA, 0);
}

static void pluto_setscl(void *data, int state)
{
	struct pluto *pluto = data;

	if (state)
		pluto_rw(pluto, REG_SLCS, SLCS_SCL, SLCS_SCL);
	else
		pluto_rw(pluto, REG_SLCS, SLCS_SCL, 0);

	/* try to detect i2c_inb() to workaround hardware bug:
	 * reset SDA to high after SCL has been set to low */
	if ((state) && (pluto->i2cbug == 0)) {
		pluto->i2cbug = 1;
	} else {
		if ((!state) && (pluto->i2cbug == 1))
			pluto_setsda(pluto, 1);
		pluto->i2cbug = 0;
	}
}

static int pluto_getsda(void *data)
{
	struct pluto *pluto = data;

	return pluto_readreg(pluto, REG_SLCS) & SLCS_SDA;
}

static int pluto_getscl(void *data)
{
	struct pluto *pluto = data;

	return pluto_readreg(pluto, REG_SLCS) & SLCS_SCL;
}

static void pluto_reset_frontend(struct pluto *pluto, int reenable)
{
	u32 val = pluto_readreg(pluto, REG_MISC);

	if (val & MISC_FRST) {
		val &= ~MISC_FRST;
		pluto_writereg(pluto, REG_MISC, val);
	}
	if (reenable) {
		val |= MISC_FRST;
		pluto_writereg(pluto, REG_MISC, val);
	}
}

static void pluto_reset_ts(struct pluto *pluto, int reenable)
{
	u32 val = pluto_readreg(pluto, REG_TSCR);

	if (val & TSCR_RSTN) {
		val &= ~TSCR_RSTN;
		pluto_write_tscr(pluto, val);
	}
	if (reenable) {
		val |= TSCR_RSTN;
		pluto_write_tscr(pluto, val);
	}
}

static void pluto_set_dma_addr(struct pluto *pluto)
{
	pluto_writereg(pluto, REG_PCAR, pluto->dma_addr);
}

static int pluto_dma_map(struct pluto *pluto)
{
	pluto->dma_addr = pci_map_single(pluto->pdev, pluto->dma_buf,
			TS_DMA_BYTES, PCI_DMA_FROMDEVICE);

	return pci_dma_mapping_error(pluto->pdev, pluto->dma_addr);
}

static void pluto_dma_unmap(struct pluto *pluto)
{
	pci_unmap_single(pluto->pdev, pluto->dma_addr,
			TS_DMA_BYTES, PCI_DMA_FROMDEVICE);
}

static int pluto_start_feed(struct dvb_demux_feed *f)
{
	struct pluto *pluto = feed_to_pluto(f);

	/* enable PID filtering */
	if (pluto->users++ == 0)
		pluto_rw(pluto, REG_PIDn(0), PID0_AFIL | PID0_NOFIL, 0);

	if ((f->pid < 0x2000) && (f->index < NHWFILTERS))
		pluto_rw(pluto, REG_PIDn(f->index), PIDn_ENP | PIDn_PID, PIDn_ENP | f->pid);
	else if (pluto->full_ts_users++ == 0)
		pluto_rw(pluto, REG_PIDn(0), PID0_NOFIL, PID0_NOFIL);

	return 0;
}

static int pluto_stop_feed(struct dvb_demux_feed *f)
{
	struct pluto *pluto = feed_to_pluto(f);

	/* disable PID filtering */
	if (--pluto->users == 0)
		pluto_rw(pluto, REG_PIDn(0), PID0_AFIL, PID0_AFIL);

	if ((f->pid < 0x2000) && (f->index < NHWFILTERS))
		pluto_rw(pluto, REG_PIDn(f->index), PIDn_ENP | PIDn_PID, 0x1fff);
	else if (--pluto->full_ts_users == 0)
		pluto_rw(pluto, REG_PIDn(0), PID0_NOFIL, 0);

	return 0;
}

static void pluto_dma_end(struct pluto *pluto, unsigned int nbpackets)
{
	/* synchronize the DMA transfer with the CPU
	 * first so that we see updated contents. */
	pci_dma_sync_single_for_cpu(pluto->pdev, pluto->dma_addr,
			TS_DMA_BYTES, PCI_DMA_FROMDEVICE);

	/* Workaround for broken hardware:
	 * [1] On startup NBPACKETS seems to contain an uninitialized value,
	 *     but no packets have been transferred.
	 * [2] Sometimes (actually very often) NBPACKETS stays at zero
	 *     although one packet has been transferred.
	 * [3] Sometimes (actually rarely), the card gets into an erroneous
	 *     mode where it continuously generates interrupts, claiming it
	 *     has received nbpackets>TS_DMA_PACKETS packets, but no packet
	 *     has been transferred. Only a reset seems to solve this
	 */
	if ((nbpackets == 0) || (nbpackets > TS_DMA_PACKETS)) {
		unsigned int i = 0;
		while (pluto->dma_buf[i] == 0x47)
			i += 188;
		nbpackets = i / 188;
		if (i == 0) {
			pluto_reset_ts(pluto, 1);
			dev_printk(KERN_DEBUG, &pluto->pdev->dev, "resetting TS because of invalid packet counter\n");
		}
	}

	dvb_dmx_swfilter_packets(&pluto->demux, pluto->dma_buf, nbpackets);

	/* clear the dma buffer. this is needed to be able to identify
	 * new valid ts packets above */
	memset(pluto->dma_buf, 0, nbpackets * 188);

	/* reset the dma address */
	pluto_set_dma_addr(pluto);

	/* sync the buffer and give it back to the card */
	pci_dma_sync_single_for_device(pluto->pdev, pluto->dma_addr,
			TS_DMA_BYTES, PCI_DMA_FROMDEVICE);
}

static irqreturn_t pluto_irq(int irq, void *dev_id)
{
	struct pluto *pluto = dev_id;
	u32 tscr;

	/* check whether an interrupt occurred on this device */
	tscr = pluto_readreg(pluto, REG_TSCR);
	if (!(tscr & (TSCR_DE | TSCR_OVR)))
		return IRQ_NONE;

	if (tscr == 0xffffffff) {
		if (pluto->dead == 0)
			dev_err(&pluto->pdev->dev, "card has hung or been ejected.\n");
		/* It's dead Jim */
		pluto->dead = 1;
		return IRQ_HANDLED;
	}

	/* dma end interrupt */
	if (tscr & TSCR_DE) {
		pluto_dma_end(pluto, (tscr & TSCR_NBPACKETS) >> 24);
		/* overflow interrupt */
		if (tscr & TSCR_OVR)
			pluto->overflow++;
		if (pluto->overflow) {
			dev_err(&pluto->pdev->dev, "overflow irq (%d)\n",
					pluto->overflow);
			pluto_reset_ts(pluto, 1);
			pluto->overflow = 0;
		}
	} else if (tscr & TSCR_OVR) {
		pluto->overflow++;
	}

	/* ACK the interrupt */
	pluto_write_tscr(pluto, tscr | TSCR_IACK);

	return IRQ_HANDLED;
}

static void pluto_enable_irqs(struct pluto *pluto)
{
	u32 val = pluto_readreg(pluto, REG_TSCR);

	/* disable AFUL and LOCK interrupts */
	val |= (TSCR_MSKA | TSCR_MSKL);
	/* enable DMA and OVERFLOW interrupts */
	val &= ~(TSCR_DEM | TSCR_MSKO);
	/* clear pending interrupts */
	val |= TSCR_IACK;

	pluto_write_tscr(pluto, val);
}

static void pluto_disable_irqs(struct pluto *pluto)
{
	u32 val = pluto_readreg(pluto, REG_TSCR);

	/* disable all interrupts */
	val |= (TSCR_DEM | TSCR_MSKO | TSCR_MSKA | TSCR_MSKL);
	/* clear pending interrupts */
	val |= TSCR_IACK;

	pluto_write_tscr(pluto, val);
}

static int pluto_hw_init(struct pluto *pluto)
{
	pluto_reset_frontend(pluto, 1);

	/* set automatic LED control by FPGA */
	pluto_rw(pluto, REG_MISC, MISC_ALED, MISC_ALED);

	/* set data endianness */
#ifdef __LITTLE_ENDIAN
	pluto_rw(pluto, REG_PIDn(0), PID0_END, PID0_END);
#else
	pluto_rw(pluto, REG_PIDn(0), PID0_END, 0);
#endif
	/* map DMA and set address */
	pluto_dma_map(pluto);
	pluto_set_dma_addr(pluto);

	/* enable interrupts */
	pluto_enable_irqs(pluto);

	/* reset TS logic */
	pluto_reset_ts(pluto, 1);

	return 0;
}

static void pluto_hw_exit(struct pluto *pluto)
{
	/* disable interrupts */
	pluto_disable_irqs(pluto);

	pluto_reset_ts(pluto, 0);

	/* LED: disable automatic control, enable yellow, disable green */
	pluto_rw(pluto, REG_MISC, MISC_ALED | MISC_LED1 | MISC_LED0, MISC_LED1);

	/* unmap DMA */
	pluto_dma_unmap(pluto);

	pluto_reset_frontend(pluto, 0);
}

static inline u32 divide(u32 numerator, u32 denominator)
{
	if (denominator == 0)
		return ~0;

	return DIV_ROUND_CLOSEST(numerator, denominator);
}

/* LG Innotek TDTE-E001P (Infineon TUA6034) */
static int lg_tdtpe001p_tuner_set_params(struct dvb_frontend *fe)
{
	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
	struct pluto *pluto = frontend_to_pluto(fe);
	struct i2c_msg msg;
	int ret;
	u8 buf[4];
	u32 div;

	// Fref = 166.667 Hz
	// Fref * 3 = 500.000 Hz
	// IF = 36166667
	// IF / Fref = 217
	//div = divide(p->frequency + 36166667, 166667);
	div = divide(p->frequency * 3, 500000) + 217;
	buf[0] = (div >> 8) & 0x7f;
	buf[1] = (div >> 0) & 0xff;

	if (p->frequency < 611000000)
		buf[2] = 0xb4;
	else if (p->frequency < 811000000)
		buf[2] = 0xbc;
	else
		buf[2] = 0xf4;

	// VHF: 174-230 MHz
	// center: 350 MHz
	// UHF: 470-862 MHz
	if (p->frequency < 350000000)
		buf[3] = 0x02;
	else
		buf[3] = 0x04;

	if (p->bandwidth_hz == 8000000)
		buf[3] |= 0x08;

	msg.addr = I2C_ADDR_TUA6034 >> 1;
	msg.flags = 0;
	msg.buf = buf;
	msg.len = sizeof(buf);

	if (fe->ops.i2c_gate_ctrl)
		fe->ops.i2c_gate_ctrl(fe, 1);
	ret = i2c_transfer(&pluto->i2c_adap, &msg, 1);
	if (ret < 0)
		return ret;
	else if (ret == 0)
		return -EREMOTEIO;

	return 0;
}

static int pluto2_request_firmware(struct dvb_frontend *fe,
				   const struct firmware **fw, char *name)
{
	struct pluto *pluto = frontend_to_pluto(fe);

	return request_firmware(fw, name, &pluto->pdev->dev);
}

static struct tda1004x_config pluto2_fe_config = {
	.demod_address = I2C_ADDR_TDA10046 >> 1,
	.invert = 1,
	.invert_oclk = 0,
	.xtal_freq = TDA10046_XTAL_16M,
	.agc_config = TDA10046_AGC_DEFAULT,
	.if_freq = TDA10046_FREQ_3617,
	.request_firmware = pluto2_request_firmware,
};

static int frontend_init(struct pluto *pluto)
{
	int ret;

	pluto->fe = tda10046_attach(&pluto2_fe_config, &pluto->i2c_adap);
	if (!pluto->fe) {
		dev_err(&pluto->pdev->dev, "could not attach frontend\n");
		return -ENODEV;
	}
	pluto->fe->ops.tuner_ops.set_params = lg_tdtpe001p_tuner_set_params;

	ret = dvb_register_frontend(&pluto->dvb_adapter, pluto->fe);
	if (ret < 0) {
		if (pluto->fe->ops.release)
			pluto->fe->ops.release(pluto->fe);
		return ret;
	}

	return 0;
}

static void pluto_read_rev(struct pluto *pluto)
{
	u32 val = pluto_readreg(pluto, REG_MISC) & MISC_DVR;
	dev_info(&pluto->pdev->dev, "board revision %d.%d\n",
			(val >> 12) & 0x0f, (val >> 4) & 0xff);
}

static void pluto_read_mac(struct pluto *pluto, u8 *mac)
{
	u32 val = pluto_readreg(pluto, REG_MMAC);
	mac[0] = (val >> 8) & 0xff;
	mac[1] = (val >> 0) & 0xff;

	val = pluto_readreg(pluto, REG_IMAC);
	mac[2] = (val >> 8) & 0xff;
	mac[3] = (val >> 0) & 0xff;

	val = pluto_readreg(pluto, REG_LMAC);
	mac[4] = (val >> 8) & 0xff;
	mac[5] = (val >> 0) & 0xff;

	dev_info(&pluto->pdev->dev, "MAC %pM\n", mac);
}

static int pluto_read_serial(struct pluto *pluto)
{
	struct pci_dev *pdev = pluto->pdev;
	unsigned int i, j;
	u8 __iomem *cis;

	cis = pci_iomap(pdev, 1, 0);
	if (!cis)
		return -EIO;

	dev_info(&pdev->dev, "S/N ");

	for (i = 0xe0; i < 0x100; i += 4) {
		u32 val = readl(&cis[i]);
		for (j = 0; j < 32; j += 8) {
			if ((val & 0xff) == 0xff)
				goto out;
			printk(KERN_CONT "%c", val & 0xff);
			val >>= 8;
		}
	}
out:
	printk(KERN_CONT "\n");
	pci_iounmap(pdev, cis);

	return 0;
}

static int pluto2_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
	struct pluto *pluto;
	struct dvb_adapter *dvb_adapter;
	struct dvb_demux *dvbdemux;
	struct dmx_demux *dmx;
	int ret = -ENOMEM;

	pluto = kzalloc(sizeof(struct pluto), GFP_KERNEL);
	if (!pluto)
		goto out;

	pluto->pdev = pdev;

	ret = pci_enable_device(pdev);
	if (ret < 0)
		goto err_kfree;

	/* enable interrupts */
	pci_write_config_dword(pdev, 0x6c, 0x8000);

	ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
	if (ret < 0)
		goto err_pci_disable_device;

	pci_set_master(pdev);

	ret = pci_request_regions(pdev, DRIVER_NAME);
	if (ret < 0)
		goto err_pci_disable_device;

	pluto->io_mem = pci_iomap(pdev, 0, 0x40);
	if (!pluto->io_mem) {
		ret = -EIO;
		goto err_pci_release_regions;
	}

	pci_set_drvdata(pdev, pluto);

	ret = request_irq(pdev->irq, pluto_irq, IRQF_SHARED, DRIVER_NAME, pluto);
	if (ret < 0)
		goto err_pci_iounmap;

	ret = pluto_hw_init(pluto);
	if (ret < 0)
		goto err_free_irq;

	/* i2c */
	i2c_set_adapdata(&pluto->i2c_adap, pluto);
	strcpy(pluto->i2c_adap.name, DRIVER_NAME);
	pluto->i2c_adap.owner = THIS_MODULE;
	pluto->i2c_adap.dev.parent = &pdev->dev;
	pluto->i2c_adap.algo_data = &pluto->i2c_bit;
	pluto->i2c_bit.data = pluto;
	pluto->i2c_bit.setsda = pluto_setsda;
	pluto->i2c_bit.setscl = pluto_setscl;
	pluto->i2c_bit.getsda = pluto_getsda;
	pluto->i2c_bit.getscl = pluto_getscl;
	pluto->i2c_bit.udelay = 10;
	pluto->i2c_bit.timeout = 10;

	/* Raise SCL and SDA */
	pluto_setsda(pluto, 1);
	pluto_setscl(pluto, 1);

	ret = i2c_bit_add_bus(&pluto->i2c_adap);
	if (ret < 0)
		goto err_pluto_hw_exit;

	/* dvb */
	ret = dvb_register_adapter(&pluto->dvb_adapter, DRIVER_NAME,
				   THIS_MODULE, &pdev->dev, adapter_nr);
	if (ret < 0)
		goto err_i2c_del_adapter;

	dvb_adapter = &pluto->dvb_adapter;

	pluto_read_rev(pluto);
	pluto_read_serial(pluto);
	pluto_read_mac(pluto, dvb_adapter->proposed_mac);

	dvbdemux = &pluto->demux;
	dvbdemux->filternum = 256;
	dvbdemux->feednum = 256;
	dvbdemux->start_feed = pluto_start_feed;
	dvbdemux->stop_feed = pluto_stop_feed;
	dvbdemux->dmx.capabilities = (DMX_TS_FILTERING |
			DMX_SECTION_FILTERING | DMX_MEMORY_BASED_FILTERING);
	ret = dvb_dmx_init(dvbdemux);
	if (ret < 0)
		goto err_dvb_unregister_adapter;

	dmx = &dvbdemux->dmx;

	pluto->hw_frontend.source = DMX_FRONTEND_0;
	pluto->mem_frontend.source = DMX_MEMORY_FE;
	pluto->dmxdev.filternum = NHWFILTERS;
	pluto->dmxdev.demux = dmx;

	ret = dvb_dmxdev_init(&pluto->dmxdev, dvb_adapter);
	if (ret < 0)
		goto err_dvb_dmx_release;

	ret = dmx->add_frontend(dmx, &pluto->hw_frontend);
	if (ret < 0)
		goto err_dvb_dmxdev_release;

	ret = dmx->add_frontend(dmx, &pluto->mem_frontend);
	if (ret < 0)
		goto err_remove_hw_frontend;

	ret = dmx->connect_frontend(dmx, &pluto->hw_frontend);
	if (ret < 0)
		goto err_remove_mem_frontend;

	ret = frontend_init(pluto);
	if (ret < 0)
		goto err_disconnect_frontend;

	dvb_net_init(dvb_adapter, &pluto->dvbnet, dmx);
out:
	return ret;

err_disconnect_frontend:
	dmx->disconnect_frontend(dmx);
err_remove_mem_frontend:
	dmx->remove_frontend(dmx, &pluto->mem_frontend);
err_remove_hw_frontend:
	dmx->remove_frontend(dmx, &pluto->hw_frontend);
err_dvb_dmxdev_release:
	dvb_dmxdev_release(&pluto->dmxdev);
err_dvb_dmx_release:
	dvb_dmx_release(dvbdemux);
err_dvb_unregister_adapter:
	dvb_unregister_adapter(dvb_adapter);
err_i2c_del_adapter:
	i2c_del_adapter(&pluto->i2c_adap);
err_pluto_hw_exit:
	pluto_hw_exit(pluto);
err_free_irq:
	free_irq(pdev->irq, pluto);
err_pci_iounmap:
	pci_iounmap(pdev, pluto->io_mem);
err_pci_release_regions:
	pci_release_regions(pdev);
err_pci_disable_device:
	pci_disable_device(pdev);
err_kfree:
	kfree(pluto);
	goto out;
}

static void pluto2_remove(struct pci_dev *pdev)
{
	struct pluto *pluto = pci_get_drvdata(pdev);
	struct dvb_adapter *dvb_adapter = &pluto->dvb_adapter;
	struct dvb_demux *dvbdemux = &pluto->demux;
	struct dmx_demux *dmx = &dvbdemux->dmx;

	dmx->close(dmx);
	dvb_net_release(&pluto->dvbnet);
	if (pluto->fe)
		dvb_unregister_frontend(pluto->fe);

	dmx->disconnect_frontend(dmx);
	dmx->remove_frontend(dmx, &pluto->mem_frontend);
	dmx->remove_frontend(dmx, &pluto->hw_frontend);
	dvb_dmxdev_release(&pluto->dmxdev);
	dvb_dmx_release(dvbdemux);
	dvb_unregister_adapter(dvb_adapter);
	i2c_del_adapter(&pluto->i2c_adap);
	pluto_hw_exit(pluto);
	free_irq(pdev->irq, pluto);
	pci_iounmap(pdev, pluto->io_mem);
	pci_release_regions(pdev);
	pci_disable_device(pdev);
	kfree(pluto);
}

#ifndef PCI_VENDOR_ID_SCM
#define PCI_VENDOR_ID_SCM	0x0432
#endif
#ifndef PCI_DEVICE_ID_PLUTO2
#define PCI_DEVICE_ID_PLUTO2	0x0001
#endif

static struct pci_device_id pluto2_id_table[] = {
	{
		.vendor = PCI_VENDOR_ID_SCM,
		.device = PCI_DEVICE_ID_PLUTO2,
		.subvendor = PCI_ANY_ID,
		.subdevice = PCI_ANY_ID,
	}, {
		/* empty */
	},
};

MODULE_DEVICE_TABLE(pci, pluto2_id_table);

static struct pci_driver pluto2_driver = {
	.name = DRIVER_NAME,
	.id_table = pluto2_id_table,
	.probe = pluto2_probe,
	.remove = pluto2_remove,
};

module_pci_driver(pluto2_driver);

MODULE_AUTHOR("Andreas Oberritter <obi@linuxtv.org>");
MODULE_DESCRIPTION("Pluto2 driver");
MODULE_LICENSE("GPL");