xref: /openbmc/linux/drivers/media/pci/dm1105/dm1105.c (revision f4356947)
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 
182 static unsigned int card[]  = {[0 ... 3] = UNSET };
183 module_param_array(card,  int, NULL, 0444);
184 MODULE_PARM_DESC(card, "card type");
185 
186 static int ir_debug;
187 module_param(ir_debug, int, 0644);
188 MODULE_PARM_DESC(ir_debug, "enable debugging information for IR decoding");
189 
190 static unsigned int dm1105_devcount;
191 
192 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
193 
194 struct dm1105_board {
195 	char	*name;
196 	struct	{
197 		u32	mask, off, v13, v18;
198 	} lnb;
199 	u32	gpio_scl, gpio_sda;
200 };
201 
202 struct dm1105_subid {
203 	u16     subvendor;
204 	u16     subdevice;
205 	u32     card;
206 };
207 
208 static 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 
258 static 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 
282 static 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 */
310 struct infrared {
311 	struct rc_dev		*dev;
312 	char			input_phys[32];
313 	struct work_struct	work;
314 	u32			ir_command;
315 };
316 
317 struct 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  */
380 static 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 
390 static 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 
400 static 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 
410 static 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 
421 static 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 
433 static 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 
443 static 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 
450 static 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 
457 static 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 
465 static 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 
473 static 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 
558 static u32 functionality(struct i2c_adapter *adap)
559 {
560 	return I2C_FUNC_I2C;
561 }
562 
563 static const struct i2c_algorithm dm1105_algo = {
564 	.master_xfer   = dm1105_i2c_xfer,
565 	.functionality = functionality,
566 };
567 
568 static 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 
573 static 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 
578 static 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 
600 static 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 
605 static 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 
614 static 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 
620 static void dm1105_enable_irqs(struct dm1105_dev *dev)
621 {
622 	dm_writeb(DM1105_INTMAK, INTMAK_ALLMASK);
623 	dm_writeb(DM1105_CR, 1);
624 }
625 
626 static void dm1105_disable_irqs(struct dm1105_dev *dev)
627 {
628 	dm_writeb(DM1105_INTMAK, INTMAK_IRM);
629 	dm_writeb(DM1105_CR, 0);
630 }
631 
632 static 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 
642 static 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 */
653 static 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 */
669 static 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 
701 static 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 
724 static 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 
763 static void dm1105_ir_exit(struct dm1105_dev *dm1105)
764 {
765 	rc_unregister_device(dm1105->ir.dev);
766 }
767 
768 static 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 
794 static 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 
805 static 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 
817 static struct stv0288_config earda_config = {
818 	.demod_address = 0x68,
819 	.min_delay_ms = 100,
820 };
821 
822 static struct si21xx_config serit_config = {
823 	.demod_address = 0x68,
824 	.min_delay_ms = 100,
825 
826 };
827 
828 static struct cx24116_config serit_sp2633_config = {
829 	.demod_address = 0x55,
830 };
831 
832 static struct ds3000_config dvbworld_ds3000_config = {
833 	.demod_address = 0x68,
834 };
835 
836 static struct ts2020_config dvbworld_ts2020_config  = {
837 	.tuner_address = 0x60,
838 	.clk_out_div = 1,
839 };
840 
841 static 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 
944 static 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 
966 static 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 
1139 err_workqueue:
1140 	destroy_workqueue(dev->wq);
1141 err_dvb_net:
1142 	dvb_net_release(&dev->dvbnet);
1143 err_disconnect_frontend:
1144 	dmx->disconnect_frontend(dmx);
1145 err_remove_mem_frontend:
1146 	dmx->remove_frontend(dmx, &dev->mem_frontend);
1147 err_remove_hw_frontend:
1148 	dmx->remove_frontend(dmx, &dev->hw_frontend);
1149 err_dvb_dmxdev_release:
1150 	dvb_dmxdev_release(&dev->dmxdev);
1151 err_dvb_dmx_release:
1152 	dvb_dmx_release(dvbdemux);
1153 err_dvb_unregister_adapter:
1154 	dvb_unregister_adapter(dvb_adapter);
1155 err_i2c_del_adapters:
1156 	i2c_del_adapter(&dev->i2c_bb_adap);
1157 err_i2c_del_adapter:
1158 	i2c_del_adapter(&dev->i2c_adap);
1159 err_dm1105_hw_exit:
1160 	dm1105_hw_exit(dev);
1161 err_pci_iounmap:
1162 	pci_iounmap(pdev, dev->io_mem);
1163 err_pci_release_regions:
1164 	pci_release_regions(pdev);
1165 err_pci_disable_device:
1166 	pci_disable_device(pdev);
1167 err_kfree:
1168 	kfree(dev);
1169 	return ret;
1170 }
1171 
1172 static 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 
1203 static 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 
1219 MODULE_DEVICE_TABLE(pci, dm1105_id_table);
1220 
1221 static 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 
1228 module_pci_driver(dm1105_driver);
1229 
1230 MODULE_AUTHOR("Igor M. Liplianin <liplianin@me.by>");
1231 MODULE_DESCRIPTION("SDMC DM1105 DVB driver");
1232 MODULE_LICENSE("GPL");
1233