1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * dm1105.c - driver for DVB cards based on SDMC DM1105 PCI chip
4 *
5 * Copyright (C) 2008 Igor M. Liplianin <liplianin@me.by>
6 */
7
8#include <linux/i2c.h>
9#include <linux/i2c-algo-bit.h>
10#include <linux/init.h>
11#include <linux/interrupt.h>
12#include <linux/kernel.h>
13#include <linux/module.h>
14#include <linux/pci.h>
15#include <linux/dma-mapping.h>
16#include <linux/slab.h>
17#include <media/rc-core.h>
18
19#include <media/demux.h>
20#include <media/dmxdev.h>
21#include <media/dvb_demux.h>
22#include <media/dvb_frontend.h>
23#include <media/dvb_net.h>
24#include <media/dvbdev.h>
25#include "dvb-pll.h"
26
27#include "stv0299.h"
28#include "stv0288.h"
29#include "stb6000.h"
30#include "si21xx.h"
31#include "cx24116.h"
32#include "z0194a.h"
33#include "ts2020.h"
34#include "ds3000.h"
35
36#define MODULE_NAME "dm1105"
37
38#define UNSET (-1U)
39
40#define DM1105_BOARD_NOAUTO			UNSET
41#define DM1105_BOARD_UNKNOWN			0
42#define DM1105_BOARD_DVBWORLD_2002		1
43#define DM1105_BOARD_DVBWORLD_2004		2
44#define DM1105_BOARD_AXESS_DM05			3
45#define DM1105_BOARD_UNBRANDED_I2C_ON_GPIO	4
46
47/* ----------------------------------------------- */
48/*
49 * PCI ID's
50 */
51#ifndef PCI_VENDOR_ID_TRIGEM
52#define PCI_VENDOR_ID_TRIGEM	0x109f
53#endif
54#ifndef PCI_VENDOR_ID_AXESS
55#define PCI_VENDOR_ID_AXESS	0x195d
56#endif
57#ifndef PCI_DEVICE_ID_DM1105
58#define PCI_DEVICE_ID_DM1105	0x036f
59#endif
60#ifndef PCI_DEVICE_ID_DW2002
61#define PCI_DEVICE_ID_DW2002	0x2002
62#endif
63#ifndef PCI_DEVICE_ID_DW2004
64#define PCI_DEVICE_ID_DW2004	0x2004
65#endif
66#ifndef PCI_DEVICE_ID_DM05
67#define PCI_DEVICE_ID_DM05	0x1105
68#endif
69/* ----------------------------------------------- */
70/* sdmc dm1105 registers */
71
72/* TS Control */
73#define DM1105_TSCTR				0x00
74#define DM1105_DTALENTH				0x04
75
76/* GPIO Interface */
77#define DM1105_GPIOVAL				0x08
78#define DM1105_GPIOCTR				0x0c
79
80/* PID serial number */
81#define DM1105_PIDN				0x10
82
83/* Odd-even secret key select */
84#define DM1105_CWSEL				0x14
85
86/* Host Command Interface */
87#define DM1105_HOST_CTR				0x18
88#define DM1105_HOST_AD				0x1c
89
90/* PCI Interface */
91#define DM1105_CR				0x30
92#define DM1105_RST				0x34
93#define DM1105_STADR				0x38
94#define DM1105_RLEN				0x3c
95#define DM1105_WRP				0x40
96#define DM1105_INTCNT				0x44
97#define DM1105_INTMAK				0x48
98#define DM1105_INTSTS				0x4c
99
100/* CW Value */
101#define DM1105_ODD				0x50
102#define DM1105_EVEN				0x58
103
104/* PID Value */
105#define DM1105_PID				0x60
106
107/* IR Control */
108#define DM1105_IRCTR				0x64
109#define DM1105_IRMODE				0x68
110#define DM1105_SYSTEMCODE			0x6c
111#define DM1105_IRCODE				0x70
112
113/* Unknown Values */
114#define DM1105_ENCRYPT				0x74
115#define DM1105_VER				0x7c
116
117/* I2C Interface */
118#define DM1105_I2CCTR				0x80
119#define DM1105_I2CSTS				0x81
120#define DM1105_I2CDAT				0x82
121#define DM1105_I2C_RA				0x83
122/* ----------------------------------------------- */
123/* Interrupt Mask Bits */
124
125#define INTMAK_TSIRQM				0x01
126#define INTMAK_HIRQM				0x04
127#define INTMAK_IRM				0x08
128#define INTMAK_ALLMASK				(INTMAK_TSIRQM | \
129						INTMAK_HIRQM | \
130						INTMAK_IRM)
131#define INTMAK_NONEMASK				0x00
132
133/* Interrupt Status Bits */
134#define INTSTS_TSIRQ				0x01
135#define INTSTS_HIRQ				0x04
136#define INTSTS_IR				0x08
137
138/* IR Control Bits */
139#define DM1105_IR_EN				0x01
140#define DM1105_SYS_CHK				0x02
141#define DM1105_REP_FLG				0x08
142
143/* EEPROM addr */
144#define IIC_24C01_addr				0xa0
145/* Max board count */
146#define DM1105_MAX				0x04
147
148#define DRIVER_NAME				"dm1105"
149#define DM1105_I2C_GPIO_NAME			"dm1105-gpio"
150
151#define DM1105_DMA_PACKETS			47
152#define DM1105_DMA_PACKET_LENGTH		(128*4)
153#define DM1105_DMA_BYTES			(128 * 4 * DM1105_DMA_PACKETS)
154
155/*  */
156#define GPIO08					(1 << 8)
157#define GPIO13					(1 << 13)
158#define GPIO14					(1 << 14)
159#define GPIO15					(1 << 15)
160#define GPIO16					(1 << 16)
161#define GPIO17					(1 << 17)
162#define GPIO_ALL				0x03ffff
163
164/* GPIO's for LNB power control */
165#define DM1105_LNB_MASK				(GPIO_ALL & ~(GPIO14 | GPIO13))
166#define DM1105_LNB_OFF				GPIO17
167#define DM1105_LNB_13V				(GPIO16 | GPIO08)
168#define DM1105_LNB_18V				GPIO08
169
170/* GPIO's for LNB power control for Axess DM05 */
171#define DM05_LNB_MASK				(GPIO_ALL & ~(GPIO14 | GPIO13))
172#define DM05_LNB_OFF				GPIO17/* actually 13v */
173#define DM05_LNB_13V				GPIO17
174#define DM05_LNB_18V				(GPIO17 | GPIO16)
175
176/* GPIO's for LNB power control for unbranded with I2C on GPIO */
177#define UNBR_LNB_MASK				(GPIO17 | GPIO16)
178#define UNBR_LNB_OFF				0
179#define UNBR_LNB_13V				GPIO17
180#define UNBR_LNB_18V				(GPIO17 | GPIO16)
181
182static unsigned int card[]  = {[0 ... 3] = UNSET };
183module_param_array(card,  int, NULL, 0444);
184MODULE_PARM_DESC(card, "card type");
185
186static int ir_debug;
187module_param(ir_debug, int, 0644);
188MODULE_PARM_DESC(ir_debug, "enable debugging information for IR decoding");
189
190static unsigned int dm1105_devcount;
191
192DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
193
194struct dm1105_board {
195	char	*name;
196	struct	{
197		u32	mask, off, v13, v18;
198	} lnb;
199	u32	gpio_scl, gpio_sda;
200};
201
202struct dm1105_subid {
203	u16     subvendor;
204	u16     subdevice;
205	u32     card;
206};
207
208static const struct dm1105_board dm1105_boards[] = {
209	[DM1105_BOARD_UNKNOWN] = {
210		.name		= "UNKNOWN/GENERIC",
211		.lnb = {
212			.mask = DM1105_LNB_MASK,
213			.off = DM1105_LNB_OFF,
214			.v13 = DM1105_LNB_13V,
215			.v18 = DM1105_LNB_18V,
216		},
217	},
218	[DM1105_BOARD_DVBWORLD_2002] = {
219		.name		= "DVBWorld PCI 2002",
220		.lnb = {
221			.mask = DM1105_LNB_MASK,
222			.off = DM1105_LNB_OFF,
223			.v13 = DM1105_LNB_13V,
224			.v18 = DM1105_LNB_18V,
225		},
226	},
227	[DM1105_BOARD_DVBWORLD_2004] = {
228		.name		= "DVBWorld PCI 2004",
229		.lnb = {
230			.mask = DM1105_LNB_MASK,
231			.off = DM1105_LNB_OFF,
232			.v13 = DM1105_LNB_13V,
233			.v18 = DM1105_LNB_18V,
234		},
235	},
236	[DM1105_BOARD_AXESS_DM05] = {
237		.name		= "Axess/EasyTv DM05",
238		.lnb = {
239			.mask = DM05_LNB_MASK,
240			.off = DM05_LNB_OFF,
241			.v13 = DM05_LNB_13V,
242			.v18 = DM05_LNB_18V,
243		},
244	},
245	[DM1105_BOARD_UNBRANDED_I2C_ON_GPIO] = {
246		.name		= "Unbranded DM1105 with i2c on GPIOs",
247		.lnb = {
248			.mask = UNBR_LNB_MASK,
249			.off = UNBR_LNB_OFF,
250			.v13 = UNBR_LNB_13V,
251			.v18 = UNBR_LNB_18V,
252		},
253		.gpio_scl	= GPIO14,
254		.gpio_sda	= GPIO13,
255	},
256};
257
258static const struct dm1105_subid dm1105_subids[] = {
259	{
260		.subvendor = 0x0000,
261		.subdevice = 0x2002,
262		.card      = DM1105_BOARD_DVBWORLD_2002,
263	}, {
264		.subvendor = 0x0001,
265		.subdevice = 0x2002,
266		.card      = DM1105_BOARD_DVBWORLD_2002,
267	}, {
268		.subvendor = 0x0000,
269		.subdevice = 0x2004,
270		.card      = DM1105_BOARD_DVBWORLD_2004,
271	}, {
272		.subvendor = 0x0001,
273		.subdevice = 0x2004,
274		.card      = DM1105_BOARD_DVBWORLD_2004,
275	}, {
276		.subvendor = 0x195d,
277		.subdevice = 0x1105,
278		.card      = DM1105_BOARD_AXESS_DM05,
279	},
280};
281
282static void dm1105_card_list(struct pci_dev *pci)
283{
284	int i;
285
286	if (0 == pci->subsystem_vendor &&
287			0 == pci->subsystem_device) {
288		printk(KERN_ERR
289			"dm1105: Your board has no valid PCI Subsystem ID\n"
290			"dm1105: and thus can't be autodetected\n"
291			"dm1105: Please pass card=<n> insmod option to\n"
292			"dm1105: workaround that.  Redirect complaints to\n"
293			"dm1105: the vendor of the TV card.  Best regards,\n"
294			"dm1105: -- tux\n");
295	} else {
296		printk(KERN_ERR
297			"dm1105: Your board isn't known (yet) to the driver.\n"
298			"dm1105: You can try to pick one of the existing\n"
299			"dm1105: card configs via card=<n> insmod option.\n"
300			"dm1105: Updating to the latest version might help\n"
301			"dm1105: as well.\n");
302	}
303	printk(KERN_ERR "Here is a list of valid choices for the card=<n> insmod option:\n");
304	for (i = 0; i < ARRAY_SIZE(dm1105_boards); i++)
305		printk(KERN_ERR "dm1105:    card=%d -> %s\n",
306				i, dm1105_boards[i].name);
307}
308
309/* infrared remote control */
310struct infrared {
311	struct rc_dev		*dev;
312	char			input_phys[32];
313	struct work_struct	work;
314	u32			ir_command;
315};
316
317struct dm1105_dev {
318	/* pci */
319	struct pci_dev *pdev;
320	u8 __iomem *io_mem;
321
322	/* ir */
323	struct infrared ir;
324
325	/* dvb */
326	struct dmx_frontend hw_frontend;
327	struct dmx_frontend mem_frontend;
328	struct dmxdev dmxdev;
329	struct dvb_adapter dvb_adapter;
330	struct dvb_demux demux;
331	struct dvb_frontend *fe;
332	struct dvb_net dvbnet;
333	unsigned int full_ts_users;
334	unsigned int boardnr;
335	int nr;
336
337	/* i2c */
338	struct i2c_adapter i2c_adap;
339	struct i2c_adapter i2c_bb_adap;
340	struct i2c_algo_bit_data i2c_bit;
341
342	/* irq */
343	struct work_struct work;
344	struct workqueue_struct *wq;
345	char wqn[16];
346
347	/* dma */
348	dma_addr_t dma_addr;
349	unsigned char *ts_buf;
350	u32 wrp;
351	u32 nextwrp;
352	u32 buffer_size;
353	unsigned int	PacketErrorCount;
354	unsigned int dmarst;
355	spinlock_t lock;
356};
357
358#define dm_io_mem(reg)	((unsigned long)(&dev->io_mem[reg]))
359
360#define dm_readb(reg)		inb(dm_io_mem(reg))
361#define dm_writeb(reg, value)	outb((value), (dm_io_mem(reg)))
362
363#define dm_readw(reg)		inw(dm_io_mem(reg))
364#define dm_writew(reg, value)	outw((value), (dm_io_mem(reg)))
365
366#define dm_readl(reg)		inl(dm_io_mem(reg))
367#define dm_writel(reg, value)	outl((value), (dm_io_mem(reg)))
368
369#define dm_andorl(reg, mask, value) \
370	outl((inl(dm_io_mem(reg)) & ~(mask)) |\
371		((value) & (mask)), (dm_io_mem(reg)))
372
373#define dm_setl(reg, bit)	dm_andorl((reg), (bit), (bit))
374#define dm_clearl(reg, bit)	dm_andorl((reg), (bit), 0)
375
376/* The chip has 18 GPIOs. In HOST mode GPIO's used as 15 bit address lines,
377 so we can use only 3 GPIO's from GPIO15 to GPIO17.
378 Here I don't check whether HOST is enebled as it is not implemented yet.
379 */
380static void dm1105_gpio_set(struct dm1105_dev *dev, u32 mask)
381{
382	if (mask & 0xfffc0000)
383		printk(KERN_ERR "%s: Only 18 GPIO's are allowed\n", __func__);
384
385	if (mask & 0x0003ffff)
386		dm_setl(DM1105_GPIOVAL, mask & 0x0003ffff);
387
388}
389
390static void dm1105_gpio_clear(struct dm1105_dev *dev, u32 mask)
391{
392	if (mask & 0xfffc0000)
393		printk(KERN_ERR "%s: Only 18 GPIO's are allowed\n", __func__);
394
395	if (mask & 0x0003ffff)
396		dm_clearl(DM1105_GPIOVAL, mask & 0x0003ffff);
397
398}
399
400static void dm1105_gpio_andor(struct dm1105_dev *dev, u32 mask, u32 val)
401{
402	if (mask & 0xfffc0000)
403		printk(KERN_ERR "%s: Only 18 GPIO's are allowed\n", __func__);
404
405	if (mask & 0x0003ffff)
406		dm_andorl(DM1105_GPIOVAL, mask & 0x0003ffff, val);
407
408}
409
410static u32 dm1105_gpio_get(struct dm1105_dev *dev, u32 mask)
411{
412	if (mask & 0xfffc0000)
413		printk(KERN_ERR "%s: Only 18 GPIO's are allowed\n", __func__);
414
415	if (mask & 0x0003ffff)
416		return dm_readl(DM1105_GPIOVAL) & mask & 0x0003ffff;
417
418	return 0;
419}
420
421static void dm1105_gpio_enable(struct dm1105_dev *dev, u32 mask, int asoutput)
422{
423	if (mask & 0xfffc0000)
424		printk(KERN_ERR "%s: Only 18 GPIO's are allowed\n", __func__);
425
426	if ((mask & 0x0003ffff) && asoutput)
427		dm_clearl(DM1105_GPIOCTR, mask & 0x0003ffff);
428	else if ((mask & 0x0003ffff) && !asoutput)
429		dm_setl(DM1105_GPIOCTR, mask & 0x0003ffff);
430
431}
432
433static void dm1105_setline(struct dm1105_dev *dev, u32 line, int state)
434{
435	if (state)
436		dm1105_gpio_enable(dev, line, 0);
437	else {
438		dm1105_gpio_enable(dev, line, 1);
439		dm1105_gpio_clear(dev, line);
440	}
441}
442
443static void dm1105_setsda(void *data, int state)
444{
445	struct dm1105_dev *dev = data;
446
447	dm1105_setline(dev, dm1105_boards[dev->boardnr].gpio_sda, state);
448}
449
450static void dm1105_setscl(void *data, int state)
451{
452	struct dm1105_dev *dev = data;
453
454	dm1105_setline(dev, dm1105_boards[dev->boardnr].gpio_scl, state);
455}
456
457static int dm1105_getsda(void *data)
458{
459	struct dm1105_dev *dev = data;
460
461	return dm1105_gpio_get(dev, dm1105_boards[dev->boardnr].gpio_sda)
462									? 1 : 0;
463}
464
465static int dm1105_getscl(void *data)
466{
467	struct dm1105_dev *dev = data;
468
469	return dm1105_gpio_get(dev, dm1105_boards[dev->boardnr].gpio_scl)
470									? 1 : 0;
471}
472
473static int dm1105_i2c_xfer(struct i2c_adapter *i2c_adap,
474			    struct i2c_msg *msgs, int num)
475{
476	struct dm1105_dev *dev ;
477
478	int addr, rc, i, j, k, len, byte, data;
479	u8 status;
480
481	dev = i2c_adap->algo_data;
482	for (i = 0; i < num; i++) {
483		dm_writeb(DM1105_I2CCTR, 0x00);
484		if (msgs[i].flags & I2C_M_RD) {
485			/* read bytes */
486			addr  = msgs[i].addr << 1;
487			addr |= 1;
488			dm_writeb(DM1105_I2CDAT, addr);
489			for (byte = 0; byte < msgs[i].len; byte++)
490				dm_writeb(DM1105_I2CDAT + byte + 1, 0);
491
492			dm_writeb(DM1105_I2CCTR, 0x81 + msgs[i].len);
493			for (j = 0; j < 55; j++) {
494				mdelay(10);
495				status = dm_readb(DM1105_I2CSTS);
496				if ((status & 0xc0) == 0x40)
497					break;
498			}
499			if (j >= 55)
500				return -1;
501
502			for (byte = 0; byte < msgs[i].len; byte++) {
503				rc = dm_readb(DM1105_I2CDAT + byte + 1);
504				if (rc < 0)
505					goto err;
506				msgs[i].buf[byte] = rc;
507			}
508		} else if ((msgs[i].buf[0] == 0xf7) && (msgs[i].addr == 0x55)) {
509			/* prepared for cx24116 firmware */
510			/* Write in small blocks */
511			len = msgs[i].len - 1;
512			k = 1;
513			do {
514				dm_writeb(DM1105_I2CDAT, msgs[i].addr << 1);
515				dm_writeb(DM1105_I2CDAT + 1, 0xf7);
516				for (byte = 0; byte < (len > 48 ? 48 : len); byte++) {
517					data = msgs[i].buf[k + byte];
518					dm_writeb(DM1105_I2CDAT + byte + 2, data);
519				}
520				dm_writeb(DM1105_I2CCTR, 0x82 + (len > 48 ? 48 : len));
521				for (j = 0; j < 25; j++) {
522					mdelay(10);
523					status = dm_readb(DM1105_I2CSTS);
524					if ((status & 0xc0) == 0x40)
525						break;
526				}
527
528				if (j >= 25)
529					return -1;
530
531				k += 48;
532				len -= 48;
533			} while (len > 0);
534		} else {
535			/* write bytes */
536			dm_writeb(DM1105_I2CDAT, msgs[i].addr << 1);
537			for (byte = 0; byte < msgs[i].len; byte++) {
538				data = msgs[i].buf[byte];
539				dm_writeb(DM1105_I2CDAT + byte + 1, data);
540			}
541			dm_writeb(DM1105_I2CCTR, 0x81 + msgs[i].len);
542			for (j = 0; j < 25; j++) {
543				mdelay(10);
544				status = dm_readb(DM1105_I2CSTS);
545				if ((status & 0xc0) == 0x40)
546					break;
547			}
548
549			if (j >= 25)
550				return -1;
551		}
552	}
553	return num;
554 err:
555	return rc;
556}
557
558static u32 functionality(struct i2c_adapter *adap)
559{
560	return I2C_FUNC_I2C;
561}
562
563static const struct i2c_algorithm dm1105_algo = {
564	.master_xfer   = dm1105_i2c_xfer,
565	.functionality = functionality,
566};
567
568static inline struct dm1105_dev *feed_to_dm1105_dev(struct dvb_demux_feed *feed)
569{
570	return container_of(feed->demux, struct dm1105_dev, demux);
571}
572
573static inline struct dm1105_dev *frontend_to_dm1105_dev(struct dvb_frontend *fe)
574{
575	return container_of(fe->dvb, struct dm1105_dev, dvb_adapter);
576}
577
578static int dm1105_set_voltage(struct dvb_frontend *fe,
579			      enum fe_sec_voltage voltage)
580{
581	struct dm1105_dev *dev = frontend_to_dm1105_dev(fe);
582
583	dm1105_gpio_enable(dev, dm1105_boards[dev->boardnr].lnb.mask, 1);
584	if (voltage == SEC_VOLTAGE_18)
585		dm1105_gpio_andor(dev,
586				dm1105_boards[dev->boardnr].lnb.mask,
587				dm1105_boards[dev->boardnr].lnb.v18);
588	else if (voltage == SEC_VOLTAGE_13)
589		dm1105_gpio_andor(dev,
590				dm1105_boards[dev->boardnr].lnb.mask,
591				dm1105_boards[dev->boardnr].lnb.v13);
592	else
593		dm1105_gpio_andor(dev,
594				dm1105_boards[dev->boardnr].lnb.mask,
595				dm1105_boards[dev->boardnr].lnb.off);
596
597	return 0;
598}
599
600static void dm1105_set_dma_addr(struct dm1105_dev *dev)
601{
602	dm_writel(DM1105_STADR, (__force u32)cpu_to_le32(dev->dma_addr));
603}
604
605static int dm1105_dma_map(struct dm1105_dev *dev)
606{
607	dev->ts_buf = dma_alloc_coherent(&dev->pdev->dev,
608					 6 * DM1105_DMA_BYTES, &dev->dma_addr,
609					 GFP_KERNEL);
610
611	return !dev->ts_buf;
612}
613
614static void dm1105_dma_unmap(struct dm1105_dev *dev)
615{
616	dma_free_coherent(&dev->pdev->dev, 6 * DM1105_DMA_BYTES, dev->ts_buf,
617			  dev->dma_addr);
618}
619
620static void dm1105_enable_irqs(struct dm1105_dev *dev)
621{
622	dm_writeb(DM1105_INTMAK, INTMAK_ALLMASK);
623	dm_writeb(DM1105_CR, 1);
624}
625
626static void dm1105_disable_irqs(struct dm1105_dev *dev)
627{
628	dm_writeb(DM1105_INTMAK, INTMAK_IRM);
629	dm_writeb(DM1105_CR, 0);
630}
631
632static int dm1105_start_feed(struct dvb_demux_feed *f)
633{
634	struct dm1105_dev *dev = feed_to_dm1105_dev(f);
635
636	if (dev->full_ts_users++ == 0)
637		dm1105_enable_irqs(dev);
638
639	return 0;
640}
641
642static int dm1105_stop_feed(struct dvb_demux_feed *f)
643{
644	struct dm1105_dev *dev = feed_to_dm1105_dev(f);
645
646	if (--dev->full_ts_users == 0)
647		dm1105_disable_irqs(dev);
648
649	return 0;
650}
651
652/* ir work handler */
653static void dm1105_emit_key(struct work_struct *work)
654{
655	struct infrared *ir = container_of(work, struct infrared, work);
656	u32 ircom = ir->ir_command;
657	u8 data;
658
659	if (ir_debug)
660		printk(KERN_INFO "%s: received byte 0x%04x\n", __func__, ircom);
661
662	data = (ircom >> 8) & 0x7f;
663
664	/* FIXME: UNKNOWN because we don't generate a full NEC scancode (yet?) */
665	rc_keydown(ir->dev, RC_PROTO_UNKNOWN, data, 0);
666}
667
668/* work handler */
669static void dm1105_dmx_buffer(struct work_struct *work)
670{
671	struct dm1105_dev *dev = container_of(work, struct dm1105_dev, work);
672	unsigned int nbpackets;
673	u32 oldwrp = dev->wrp;
674	u32 nextwrp = dev->nextwrp;
675
676	if (!((dev->ts_buf[oldwrp] == 0x47) &&
677			(dev->ts_buf[oldwrp + 188] == 0x47) &&
678			(dev->ts_buf[oldwrp + 188 * 2] == 0x47))) {
679		dev->PacketErrorCount++;
680		/* bad packet found */
681		if ((dev->PacketErrorCount >= 2) &&
682				(dev->dmarst == 0)) {
683			dm_writeb(DM1105_RST, 1);
684			dev->wrp = 0;
685			dev->PacketErrorCount = 0;
686			dev->dmarst = 0;
687			return;
688		}
689	}
690
691	if (nextwrp < oldwrp) {
692		memcpy(dev->ts_buf + dev->buffer_size, dev->ts_buf, nextwrp);
693		nbpackets = ((dev->buffer_size - oldwrp) + nextwrp) / 188;
694	} else
695		nbpackets = (nextwrp - oldwrp) / 188;
696
697	dev->wrp = nextwrp;
698	dvb_dmx_swfilter_packets(&dev->demux, &dev->ts_buf[oldwrp], nbpackets);
699}
700
701static irqreturn_t dm1105_irq(int irq, void *dev_id)
702{
703	struct dm1105_dev *dev = dev_id;
704
705	/* Read-Write INSTS Ack's Interrupt for DM1105 chip 16.03.2008 */
706	unsigned int intsts = dm_readb(DM1105_INTSTS);
707	dm_writeb(DM1105_INTSTS, intsts);
708
709	switch (intsts) {
710	case INTSTS_TSIRQ:
711	case (INTSTS_TSIRQ | INTSTS_IR):
712		dev->nextwrp = dm_readl(DM1105_WRP) - dm_readl(DM1105_STADR);
713		queue_work(dev->wq, &dev->work);
714		break;
715	case INTSTS_IR:
716		dev->ir.ir_command = dm_readl(DM1105_IRCODE);
717		schedule_work(&dev->ir.work);
718		break;
719	}
720
721	return IRQ_HANDLED;
722}
723
724static int dm1105_ir_init(struct dm1105_dev *dm1105)
725{
726	struct rc_dev *dev;
727	int err = -ENOMEM;
728
729	dev = rc_allocate_device(RC_DRIVER_SCANCODE);
730	if (!dev)
731		return -ENOMEM;
732
733	snprintf(dm1105->ir.input_phys, sizeof(dm1105->ir.input_phys),
734		"pci-%s/ir0", pci_name(dm1105->pdev));
735
736	dev->driver_name = MODULE_NAME;
737	dev->map_name = RC_MAP_DM1105_NEC;
738	dev->device_name = "DVB on-card IR receiver";
739	dev->input_phys = dm1105->ir.input_phys;
740	dev->input_id.bustype = BUS_PCI;
741	dev->input_id.version = 1;
742	if (dm1105->pdev->subsystem_vendor) {
743		dev->input_id.vendor = dm1105->pdev->subsystem_vendor;
744		dev->input_id.product = dm1105->pdev->subsystem_device;
745	} else {
746		dev->input_id.vendor = dm1105->pdev->vendor;
747		dev->input_id.product = dm1105->pdev->device;
748	}
749	dev->dev.parent = &dm1105->pdev->dev;
750
751	INIT_WORK(&dm1105->ir.work, dm1105_emit_key);
752
753	err = rc_register_device(dev);
754	if (err < 0) {
755		rc_free_device(dev);
756		return err;
757	}
758
759	dm1105->ir.dev = dev;
760	return 0;
761}
762
763static void dm1105_ir_exit(struct dm1105_dev *dm1105)
764{
765	rc_unregister_device(dm1105->ir.dev);
766}
767
768static int dm1105_hw_init(struct dm1105_dev *dev)
769{
770	dm1105_disable_irqs(dev);
771
772	dm_writeb(DM1105_HOST_CTR, 0);
773
774	/*DATALEN 188,*/
775	dm_writeb(DM1105_DTALENTH, 188);
776	/*TS_STRT TS_VALP MSBFIRST TS_MODE ALPAS TSPES*/
777	dm_writew(DM1105_TSCTR, 0xc10a);
778
779	/* map DMA and set address */
780	dm1105_dma_map(dev);
781	dm1105_set_dma_addr(dev);
782	/* big buffer */
783	dm_writel(DM1105_RLEN, 5 * DM1105_DMA_BYTES);
784	dm_writeb(DM1105_INTCNT, 47);
785
786	/* IR NEC mode enable */
787	dm_writeb(DM1105_IRCTR, (DM1105_IR_EN | DM1105_SYS_CHK));
788	dm_writeb(DM1105_IRMODE, 0);
789	dm_writew(DM1105_SYSTEMCODE, 0);
790
791	return 0;
792}
793
794static void dm1105_hw_exit(struct dm1105_dev *dev)
795{
796	dm1105_disable_irqs(dev);
797
798	/* IR disable */
799	dm_writeb(DM1105_IRCTR, 0);
800	dm_writeb(DM1105_INTMAK, INTMAK_NONEMASK);
801
802	dm1105_dma_unmap(dev);
803}
804
805static const struct stv0299_config sharp_z0194a_config = {
806	.demod_address = 0x68,
807	.inittab = sharp_z0194a_inittab,
808	.mclk = 88000000UL,
809	.invert = 1,
810	.skip_reinit = 0,
811	.lock_output = STV0299_LOCKOUTPUT_1,
812	.volt13_op0_op1 = STV0299_VOLT13_OP1,
813	.min_delay_ms = 100,
814	.set_symbol_rate = sharp_z0194a_set_symbol_rate,
815};
816
817static struct stv0288_config earda_config = {
818	.demod_address = 0x68,
819	.min_delay_ms = 100,
820};
821
822static struct si21xx_config serit_config = {
823	.demod_address = 0x68,
824	.min_delay_ms = 100,
825
826};
827
828static struct cx24116_config serit_sp2633_config = {
829	.demod_address = 0x55,
830};
831
832static struct ds3000_config dvbworld_ds3000_config = {
833	.demod_address = 0x68,
834};
835
836static struct ts2020_config dvbworld_ts2020_config  = {
837	.tuner_address = 0x60,
838	.clk_out_div = 1,
839};
840
841static int frontend_init(struct dm1105_dev *dev)
842{
843	int ret;
844
845	switch (dev->boardnr) {
846	case DM1105_BOARD_UNBRANDED_I2C_ON_GPIO:
847		dm1105_gpio_enable(dev, GPIO15, 1);
848		dm1105_gpio_clear(dev, GPIO15);
849		msleep(100);
850		dm1105_gpio_set(dev, GPIO15);
851		msleep(200);
852		dev->fe = dvb_attach(
853			stv0299_attach, &sharp_z0194a_config,
854			&dev->i2c_bb_adap);
855		if (dev->fe) {
856			dev->fe->ops.set_voltage = dm1105_set_voltage;
857			dvb_attach(dvb_pll_attach, dev->fe, 0x60,
858					&dev->i2c_bb_adap, DVB_PLL_OPERA1);
859			break;
860		}
861
862		dev->fe = dvb_attach(
863			stv0288_attach, &earda_config,
864			&dev->i2c_bb_adap);
865		if (dev->fe) {
866			dev->fe->ops.set_voltage = dm1105_set_voltage;
867			dvb_attach(stb6000_attach, dev->fe, 0x61,
868					&dev->i2c_bb_adap);
869			break;
870		}
871
872		dev->fe = dvb_attach(
873			si21xx_attach, &serit_config,
874			&dev->i2c_bb_adap);
875		if (dev->fe)
876			dev->fe->ops.set_voltage = dm1105_set_voltage;
877		break;
878	case DM1105_BOARD_DVBWORLD_2004:
879		dev->fe = dvb_attach(
880			cx24116_attach, &serit_sp2633_config,
881			&dev->i2c_adap);
882		if (dev->fe) {
883			dev->fe->ops.set_voltage = dm1105_set_voltage;
884			break;
885		}
886
887		dev->fe = dvb_attach(
888			ds3000_attach, &dvbworld_ds3000_config,
889			&dev->i2c_adap);
890		if (dev->fe) {
891			dvb_attach(ts2020_attach, dev->fe,
892				&dvbworld_ts2020_config, &dev->i2c_adap);
893			dev->fe->ops.set_voltage = dm1105_set_voltage;
894		}
895
896		break;
897	case DM1105_BOARD_DVBWORLD_2002:
898	case DM1105_BOARD_AXESS_DM05:
899	default:
900		dev->fe = dvb_attach(
901			stv0299_attach, &sharp_z0194a_config,
902			&dev->i2c_adap);
903		if (dev->fe) {
904			dev->fe->ops.set_voltage = dm1105_set_voltage;
905			dvb_attach(dvb_pll_attach, dev->fe, 0x60,
906					&dev->i2c_adap, DVB_PLL_OPERA1);
907			break;
908		}
909
910		dev->fe = dvb_attach(
911			stv0288_attach, &earda_config,
912			&dev->i2c_adap);
913		if (dev->fe) {
914			dev->fe->ops.set_voltage = dm1105_set_voltage;
915			dvb_attach(stb6000_attach, dev->fe, 0x61,
916					&dev->i2c_adap);
917			break;
918		}
919
920		dev->fe = dvb_attach(
921			si21xx_attach, &serit_config,
922			&dev->i2c_adap);
923		if (dev->fe)
924			dev->fe->ops.set_voltage = dm1105_set_voltage;
925
926	}
927
928	if (!dev->fe) {
929		dev_err(&dev->pdev->dev, "could not attach frontend\n");
930		return -ENODEV;
931	}
932
933	ret = dvb_register_frontend(&dev->dvb_adapter, dev->fe);
934	if (ret < 0) {
935		if (dev->fe->ops.release)
936			dev->fe->ops.release(dev->fe);
937		dev->fe = NULL;
938		return ret;
939	}
940
941	return 0;
942}
943
944static void dm1105_read_mac(struct dm1105_dev *dev, u8 *mac)
945{
946	static u8 command[1] = { 0x28 };
947
948	struct i2c_msg msg[] = {
949		{
950			.addr = IIC_24C01_addr >> 1,
951			.flags = 0,
952			.buf = command,
953			.len = 1
954		}, {
955			.addr = IIC_24C01_addr >> 1,
956			.flags = I2C_M_RD,
957			.buf = mac,
958			.len = 6
959		},
960	};
961
962	dm1105_i2c_xfer(&dev->i2c_adap, msg , 2);
963	dev_info(&dev->pdev->dev, "MAC %pM\n", mac);
964}
965
966static int dm1105_probe(struct pci_dev *pdev,
967				  const struct pci_device_id *ent)
968{
969	struct dm1105_dev *dev;
970	struct dvb_adapter *dvb_adapter;
971	struct dvb_demux *dvbdemux;
972	struct dmx_demux *dmx;
973	int ret = -ENOMEM;
974	int i;
975
976	if (dm1105_devcount >= ARRAY_SIZE(card))
977		return -ENODEV;
978
979	dev = kzalloc(sizeof(struct dm1105_dev), GFP_KERNEL);
980	if (!dev)
981		return -ENOMEM;
982
983	/* board config */
984	dev->nr = dm1105_devcount;
985	dev->boardnr = UNSET;
986	if (card[dev->nr] < ARRAY_SIZE(dm1105_boards))
987		dev->boardnr = card[dev->nr];
988	for (i = 0; UNSET == dev->boardnr &&
989				i < ARRAY_SIZE(dm1105_subids); i++)
990		if (pdev->subsystem_vendor ==
991			dm1105_subids[i].subvendor &&
992				pdev->subsystem_device ==
993					dm1105_subids[i].subdevice)
994			dev->boardnr = dm1105_subids[i].card;
995
996	if (UNSET == dev->boardnr) {
997		dev->boardnr = DM1105_BOARD_UNKNOWN;
998		dm1105_card_list(pdev);
999	}
1000
1001	dm1105_devcount++;
1002	dev->pdev = pdev;
1003	dev->buffer_size = 5 * DM1105_DMA_BYTES;
1004	dev->PacketErrorCount = 0;
1005	dev->dmarst = 0;
1006
1007	ret = pci_enable_device(pdev);
1008	if (ret < 0)
1009		goto err_kfree;
1010
1011	ret = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
1012	if (ret < 0)
1013		goto err_pci_disable_device;
1014
1015	pci_set_master(pdev);
1016
1017	ret = pci_request_regions(pdev, DRIVER_NAME);
1018	if (ret < 0)
1019		goto err_pci_disable_device;
1020
1021	dev->io_mem = pci_iomap(pdev, 0, pci_resource_len(pdev, 0));
1022	if (!dev->io_mem) {
1023		ret = -EIO;
1024		goto err_pci_release_regions;
1025	}
1026
1027	spin_lock_init(&dev->lock);
1028	pci_set_drvdata(pdev, dev);
1029
1030	ret = dm1105_hw_init(dev);
1031	if (ret < 0)
1032		goto err_pci_iounmap;
1033
1034	/* i2c */
1035	i2c_set_adapdata(&dev->i2c_adap, dev);
1036	strscpy(dev->i2c_adap.name, DRIVER_NAME, sizeof(dev->i2c_adap.name));
1037	dev->i2c_adap.owner = THIS_MODULE;
1038	dev->i2c_adap.dev.parent = &pdev->dev;
1039	dev->i2c_adap.algo = &dm1105_algo;
1040	dev->i2c_adap.algo_data = dev;
1041	ret = i2c_add_adapter(&dev->i2c_adap);
1042
1043	if (ret < 0)
1044		goto err_dm1105_hw_exit;
1045
1046	i2c_set_adapdata(&dev->i2c_bb_adap, dev);
1047	strscpy(dev->i2c_bb_adap.name, DM1105_I2C_GPIO_NAME,
1048		sizeof(dev->i2c_bb_adap.name));
1049	dev->i2c_bb_adap.owner = THIS_MODULE;
1050	dev->i2c_bb_adap.dev.parent = &pdev->dev;
1051	dev->i2c_bb_adap.algo_data = &dev->i2c_bit;
1052	dev->i2c_bit.data = dev;
1053	dev->i2c_bit.setsda = dm1105_setsda;
1054	dev->i2c_bit.setscl = dm1105_setscl;
1055	dev->i2c_bit.getsda = dm1105_getsda;
1056	dev->i2c_bit.getscl = dm1105_getscl;
1057	dev->i2c_bit.udelay = 10;
1058	dev->i2c_bit.timeout = 10;
1059
1060	/* Raise SCL and SDA */
1061	dm1105_setsda(dev, 1);
1062	dm1105_setscl(dev, 1);
1063
1064	ret = i2c_bit_add_bus(&dev->i2c_bb_adap);
1065	if (ret < 0)
1066		goto err_i2c_del_adapter;
1067
1068	/* dvb */
1069	ret = dvb_register_adapter(&dev->dvb_adapter, DRIVER_NAME,
1070					THIS_MODULE, &pdev->dev, adapter_nr);
1071	if (ret < 0)
1072		goto err_i2c_del_adapters;
1073
1074	dvb_adapter = &dev->dvb_adapter;
1075
1076	dm1105_read_mac(dev, dvb_adapter->proposed_mac);
1077
1078	dvbdemux = &dev->demux;
1079	dvbdemux->filternum = 256;
1080	dvbdemux->feednum = 256;
1081	dvbdemux->start_feed = dm1105_start_feed;
1082	dvbdemux->stop_feed = dm1105_stop_feed;
1083	dvbdemux->dmx.capabilities = (DMX_TS_FILTERING |
1084			DMX_SECTION_FILTERING | DMX_MEMORY_BASED_FILTERING);
1085	ret = dvb_dmx_init(dvbdemux);
1086	if (ret < 0)
1087		goto err_dvb_unregister_adapter;
1088
1089	dmx = &dvbdemux->dmx;
1090	dev->dmxdev.filternum = 256;
1091	dev->dmxdev.demux = dmx;
1092	dev->dmxdev.capabilities = 0;
1093
1094	ret = dvb_dmxdev_init(&dev->dmxdev, dvb_adapter);
1095	if (ret < 0)
1096		goto err_dvb_dmx_release;
1097
1098	dev->hw_frontend.source = DMX_FRONTEND_0;
1099
1100	ret = dmx->add_frontend(dmx, &dev->hw_frontend);
1101	if (ret < 0)
1102		goto err_dvb_dmxdev_release;
1103
1104	dev->mem_frontend.source = DMX_MEMORY_FE;
1105
1106	ret = dmx->add_frontend(dmx, &dev->mem_frontend);
1107	if (ret < 0)
1108		goto err_remove_hw_frontend;
1109
1110	ret = dmx->connect_frontend(dmx, &dev->hw_frontend);
1111	if (ret < 0)
1112		goto err_remove_mem_frontend;
1113
1114	ret = dvb_net_init(dvb_adapter, &dev->dvbnet, dmx);
1115	if (ret < 0)
1116		goto err_disconnect_frontend;
1117
1118	ret = frontend_init(dev);
1119	if (ret < 0)
1120		goto err_dvb_net;
1121
1122	dm1105_ir_init(dev);
1123
1124	INIT_WORK(&dev->work, dm1105_dmx_buffer);
1125	sprintf(dev->wqn, "%s/%d", dvb_adapter->name, dvb_adapter->num);
1126	dev->wq = create_singlethread_workqueue(dev->wqn);
1127	if (!dev->wq) {
1128		ret = -ENOMEM;
1129		goto err_dvb_net;
1130	}
1131
1132	ret = request_irq(pdev->irq, dm1105_irq, IRQF_SHARED,
1133						DRIVER_NAME, dev);
1134	if (ret < 0)
1135		goto err_workqueue;
1136
1137	return 0;
1138
1139err_workqueue:
1140	destroy_workqueue(dev->wq);
1141err_dvb_net:
1142	dvb_net_release(&dev->dvbnet);
1143err_disconnect_frontend:
1144	dmx->disconnect_frontend(dmx);
1145err_remove_mem_frontend:
1146	dmx->remove_frontend(dmx, &dev->mem_frontend);
1147err_remove_hw_frontend:
1148	dmx->remove_frontend(dmx, &dev->hw_frontend);
1149err_dvb_dmxdev_release:
1150	dvb_dmxdev_release(&dev->dmxdev);
1151err_dvb_dmx_release:
1152	dvb_dmx_release(dvbdemux);
1153err_dvb_unregister_adapter:
1154	dvb_unregister_adapter(dvb_adapter);
1155err_i2c_del_adapters:
1156	i2c_del_adapter(&dev->i2c_bb_adap);
1157err_i2c_del_adapter:
1158	i2c_del_adapter(&dev->i2c_adap);
1159err_dm1105_hw_exit:
1160	dm1105_hw_exit(dev);
1161err_pci_iounmap:
1162	pci_iounmap(pdev, dev->io_mem);
1163err_pci_release_regions:
1164	pci_release_regions(pdev);
1165err_pci_disable_device:
1166	pci_disable_device(pdev);
1167err_kfree:
1168	kfree(dev);
1169	return ret;
1170}
1171
1172static void dm1105_remove(struct pci_dev *pdev)
1173{
1174	struct dm1105_dev *dev = pci_get_drvdata(pdev);
1175	struct dvb_adapter *dvb_adapter = &dev->dvb_adapter;
1176	struct dvb_demux *dvbdemux = &dev->demux;
1177	struct dmx_demux *dmx = &dvbdemux->dmx;
1178
1179	cancel_work_sync(&dev->ir.work);
1180	dm1105_ir_exit(dev);
1181	dmx->close(dmx);
1182	dvb_net_release(&dev->dvbnet);
1183	if (dev->fe)
1184		dvb_unregister_frontend(dev->fe);
1185
1186	dmx->disconnect_frontend(dmx);
1187	dmx->remove_frontend(dmx, &dev->mem_frontend);
1188	dmx->remove_frontend(dmx, &dev->hw_frontend);
1189	dvb_dmxdev_release(&dev->dmxdev);
1190	dvb_dmx_release(dvbdemux);
1191	dvb_unregister_adapter(dvb_adapter);
1192	i2c_del_adapter(&dev->i2c_adap);
1193
1194	dm1105_hw_exit(dev);
1195	free_irq(pdev->irq, dev);
1196	pci_iounmap(pdev, dev->io_mem);
1197	pci_release_regions(pdev);
1198	pci_disable_device(pdev);
1199	dm1105_devcount--;
1200	kfree(dev);
1201}
1202
1203static const struct pci_device_id dm1105_id_table[] = {
1204	{
1205		.vendor = PCI_VENDOR_ID_TRIGEM,
1206		.device = PCI_DEVICE_ID_DM1105,
1207		.subvendor = PCI_ANY_ID,
1208		.subdevice = PCI_ANY_ID,
1209	}, {
1210		.vendor = PCI_VENDOR_ID_AXESS,
1211		.device = PCI_DEVICE_ID_DM05,
1212		.subvendor = PCI_ANY_ID,
1213		.subdevice = PCI_ANY_ID,
1214	}, {
1215		/* empty */
1216	},
1217};
1218
1219MODULE_DEVICE_TABLE(pci, dm1105_id_table);
1220
1221static struct pci_driver dm1105_driver = {
1222	.name = DRIVER_NAME,
1223	.id_table = dm1105_id_table,
1224	.probe = dm1105_probe,
1225	.remove = dm1105_remove,
1226};
1227
1228module_pci_driver(dm1105_driver);
1229
1230MODULE_AUTHOR("Igor M. Liplianin <liplianin@me.by>");
1231MODULE_DESCRIPTION("SDMC DM1105 DVB driver");
1232MODULE_LICENSE("GPL");
1233