1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  *  Support for a cx23416 mpeg encoder via cx2388x host port.
4  *  "blackbird" reference design.
5  *
6  *    (c) 2004 Jelle Foks <jelle@foks.us>
7  *    (c) 2004 Gerd Knorr <kraxel@bytesex.org>
8  *
9  *    (c) 2005-2006 Mauro Carvalho Chehab <mchehab@kernel.org>
10  *        - video_ioctl2 conversion
11  *
12  *  Includes parts from the ivtv driver <http://sourceforge.net/projects/ivtv/>
13  */
14 
15 #include "cx88.h"
16 
17 #include <linux/module.h>
18 #include <linux/init.h>
19 #include <linux/slab.h>
20 #include <linux/fs.h>
21 #include <linux/delay.h>
22 #include <linux/device.h>
23 #include <linux/firmware.h>
24 #include <media/v4l2-common.h>
25 #include <media/v4l2-ioctl.h>
26 #include <media/v4l2-event.h>
27 #include <media/drv-intf/cx2341x.h>
28 
29 MODULE_DESCRIPTION("driver for cx2388x/cx23416 based mpeg encoder cards");
30 MODULE_AUTHOR("Jelle Foks <jelle@foks.us>, Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
31 MODULE_LICENSE("GPL v2");
32 MODULE_VERSION(CX88_VERSION);
33 
34 static unsigned int debug;
35 module_param(debug, int, 0644);
36 MODULE_PARM_DESC(debug, "enable debug messages [blackbird]");
37 
38 #define dprintk(level, fmt, arg...) do {				\
39 	if (debug + 1 > level)						\
40 		printk(KERN_DEBUG pr_fmt("%s: blackbird:" fmt),		\
41 			__func__, ##arg);				\
42 } while (0)
43 
44 /* ------------------------------------------------------------------ */
45 
46 #define BLACKBIRD_FIRM_IMAGE_SIZE 376836
47 
48 /* defines below are from ivtv-driver.h */
49 
50 #define IVTV_CMD_HW_BLOCKS_RST 0xFFFFFFFF
51 
52 /* Firmware API commands */
53 #define IVTV_API_STD_TIMEOUT 500
54 
55 enum blackbird_capture_type {
56 	BLACKBIRD_MPEG_CAPTURE,
57 	BLACKBIRD_RAW_CAPTURE,
58 	BLACKBIRD_RAW_PASSTHRU_CAPTURE
59 };
60 
61 enum blackbird_capture_bits {
62 	BLACKBIRD_RAW_BITS_NONE             = 0x00,
63 	BLACKBIRD_RAW_BITS_YUV_CAPTURE      = 0x01,
64 	BLACKBIRD_RAW_BITS_PCM_CAPTURE      = 0x02,
65 	BLACKBIRD_RAW_BITS_VBI_CAPTURE      = 0x04,
66 	BLACKBIRD_RAW_BITS_PASSTHRU_CAPTURE = 0x08,
67 	BLACKBIRD_RAW_BITS_TO_HOST_CAPTURE  = 0x10
68 };
69 
70 enum blackbird_capture_end {
71 	BLACKBIRD_END_AT_GOP, /* stop at the end of gop, generate irq */
72 	BLACKBIRD_END_NOW, /* stop immediately, no irq */
73 };
74 
75 enum blackbird_framerate {
76 	BLACKBIRD_FRAMERATE_NTSC_30, /* NTSC: 30fps */
77 	BLACKBIRD_FRAMERATE_PAL_25   /* PAL: 25fps */
78 };
79 
80 enum blackbird_stream_port {
81 	BLACKBIRD_OUTPUT_PORT_MEMORY,
82 	BLACKBIRD_OUTPUT_PORT_STREAMING,
83 	BLACKBIRD_OUTPUT_PORT_SERIAL
84 };
85 
86 enum blackbird_data_xfer_status {
87 	BLACKBIRD_MORE_BUFFERS_FOLLOW,
88 	BLACKBIRD_LAST_BUFFER,
89 };
90 
91 enum blackbird_picture_mask {
92 	BLACKBIRD_PICTURE_MASK_NONE,
93 	BLACKBIRD_PICTURE_MASK_I_FRAMES,
94 	BLACKBIRD_PICTURE_MASK_I_P_FRAMES = 0x3,
95 	BLACKBIRD_PICTURE_MASK_ALL_FRAMES = 0x7,
96 };
97 
98 enum blackbird_vbi_mode_bits {
99 	BLACKBIRD_VBI_BITS_SLICED,
100 	BLACKBIRD_VBI_BITS_RAW,
101 };
102 
103 enum blackbird_vbi_insertion_bits {
104 	BLACKBIRD_VBI_BITS_INSERT_IN_XTENSION_USR_DATA,
105 	BLACKBIRD_VBI_BITS_INSERT_IN_PRIVATE_PACKETS = 0x1 << 1,
106 	BLACKBIRD_VBI_BITS_SEPARATE_STREAM = 0x2 << 1,
107 	BLACKBIRD_VBI_BITS_SEPARATE_STREAM_USR_DATA = 0x4 << 1,
108 	BLACKBIRD_VBI_BITS_SEPARATE_STREAM_PRV_DATA = 0x5 << 1,
109 };
110 
111 enum blackbird_dma_unit {
112 	BLACKBIRD_DMA_BYTES,
113 	BLACKBIRD_DMA_FRAMES,
114 };
115 
116 enum blackbird_dma_transfer_status_bits {
117 	BLACKBIRD_DMA_TRANSFER_BITS_DONE = 0x01,
118 	BLACKBIRD_DMA_TRANSFER_BITS_ERROR = 0x04,
119 	BLACKBIRD_DMA_TRANSFER_BITS_LL_ERROR = 0x10,
120 };
121 
122 enum blackbird_pause {
123 	BLACKBIRD_PAUSE_ENCODING,
124 	BLACKBIRD_RESUME_ENCODING,
125 };
126 
127 enum blackbird_copyright {
128 	BLACKBIRD_COPYRIGHT_OFF,
129 	BLACKBIRD_COPYRIGHT_ON,
130 };
131 
132 enum blackbird_notification_type {
133 	BLACKBIRD_NOTIFICATION_REFRESH,
134 };
135 
136 enum blackbird_notification_status {
137 	BLACKBIRD_NOTIFICATION_OFF,
138 	BLACKBIRD_NOTIFICATION_ON,
139 };
140 
141 enum blackbird_notification_mailbox {
142 	BLACKBIRD_NOTIFICATION_NO_MAILBOX = -1,
143 };
144 
145 enum blackbird_field1_lines {
146 	BLACKBIRD_FIELD1_SAA7114 = 0x00EF, /* 239 */
147 	BLACKBIRD_FIELD1_SAA7115 = 0x00F0, /* 240 */
148 	BLACKBIRD_FIELD1_MICRONAS = 0x0105, /* 261 */
149 };
150 
151 enum blackbird_field2_lines {
152 	BLACKBIRD_FIELD2_SAA7114 = 0x00EF, /* 239 */
153 	BLACKBIRD_FIELD2_SAA7115 = 0x00F0, /* 240 */
154 	BLACKBIRD_FIELD2_MICRONAS = 0x0106, /* 262 */
155 };
156 
157 enum blackbird_custom_data_type {
158 	BLACKBIRD_CUSTOM_EXTENSION_USR_DATA,
159 	BLACKBIRD_CUSTOM_PRIVATE_PACKET,
160 };
161 
162 enum blackbird_mute {
163 	BLACKBIRD_UNMUTE,
164 	BLACKBIRD_MUTE,
165 };
166 
167 enum blackbird_mute_video_mask {
168 	BLACKBIRD_MUTE_VIDEO_V_MASK = 0x0000FF00,
169 	BLACKBIRD_MUTE_VIDEO_U_MASK = 0x00FF0000,
170 	BLACKBIRD_MUTE_VIDEO_Y_MASK = 0xFF000000,
171 };
172 
173 enum blackbird_mute_video_shift {
174 	BLACKBIRD_MUTE_VIDEO_V_SHIFT = 8,
175 	BLACKBIRD_MUTE_VIDEO_U_SHIFT = 16,
176 	BLACKBIRD_MUTE_VIDEO_Y_SHIFT = 24,
177 };
178 
179 /* Registers */
180 #define IVTV_REG_ENC_SDRAM_REFRESH (0x07F8 /*| IVTV_REG_OFFSET*/)
181 #define IVTV_REG_ENC_SDRAM_PRECHARGE (0x07FC /*| IVTV_REG_OFFSET*/)
182 #define IVTV_REG_SPU (0x9050 /*| IVTV_REG_OFFSET*/)
183 #define IVTV_REG_HW_BLOCKS (0x9054 /*| IVTV_REG_OFFSET*/)
184 #define IVTV_REG_VPU (0x9058 /*| IVTV_REG_OFFSET*/)
185 #define IVTV_REG_APU (0xA064 /*| IVTV_REG_OFFSET*/)
186 
187 /* ------------------------------------------------------------------ */
188 
189 static void host_setup(struct cx88_core *core)
190 {
191 	/* toggle reset of the host */
192 	cx_write(MO_GPHST_SOFT_RST, 1);
193 	udelay(100);
194 	cx_write(MO_GPHST_SOFT_RST, 0);
195 	udelay(100);
196 
197 	/* host port setup */
198 	cx_write(MO_GPHST_WSC, 0x44444444U);
199 	cx_write(MO_GPHST_XFR, 0);
200 	cx_write(MO_GPHST_WDTH, 15);
201 	cx_write(MO_GPHST_HDSHK, 0);
202 	cx_write(MO_GPHST_MUX16, 0x44448888U);
203 	cx_write(MO_GPHST_MODE, 0);
204 }
205 
206 /* ------------------------------------------------------------------ */
207 
208 #define P1_MDATA0 0x390000
209 #define P1_MDATA1 0x390001
210 #define P1_MDATA2 0x390002
211 #define P1_MDATA3 0x390003
212 #define P1_MADDR2 0x390004
213 #define P1_MADDR1 0x390005
214 #define P1_MADDR0 0x390006
215 #define P1_RDATA0 0x390008
216 #define P1_RDATA1 0x390009
217 #define P1_RDATA2 0x39000A
218 #define P1_RDATA3 0x39000B
219 #define P1_RADDR0 0x39000C
220 #define P1_RADDR1 0x39000D
221 #define P1_RRDWR  0x39000E
222 
223 static int wait_ready_gpio0_bit1(struct cx88_core *core, u32 state)
224 {
225 	unsigned long timeout = jiffies + msecs_to_jiffies(1);
226 	u32 gpio0, need;
227 
228 	need = state ? 2 : 0;
229 	for (;;) {
230 		gpio0 = cx_read(MO_GP0_IO) & 2;
231 		if (need == gpio0)
232 			return 0;
233 		if (time_after(jiffies, timeout))
234 			return -1;
235 		udelay(1);
236 	}
237 }
238 
239 static int memory_write(struct cx88_core *core, u32 address, u32 value)
240 {
241 	/* Warning: address is dword address (4 bytes) */
242 	cx_writeb(P1_MDATA0, (unsigned int)value);
243 	cx_writeb(P1_MDATA1, (unsigned int)(value >> 8));
244 	cx_writeb(P1_MDATA2, (unsigned int)(value >> 16));
245 	cx_writeb(P1_MDATA3, (unsigned int)(value >> 24));
246 	cx_writeb(P1_MADDR2, (unsigned int)(address >> 16) | 0x40);
247 	cx_writeb(P1_MADDR1, (unsigned int)(address >> 8));
248 	cx_writeb(P1_MADDR0, (unsigned int)address);
249 	cx_read(P1_MDATA0);
250 	cx_read(P1_MADDR0);
251 
252 	return wait_ready_gpio0_bit1(core, 1);
253 }
254 
255 static int memory_read(struct cx88_core *core, u32 address, u32 *value)
256 {
257 	int retval;
258 	u32 val;
259 
260 	/* Warning: address is dword address (4 bytes) */
261 	cx_writeb(P1_MADDR2, (unsigned int)(address >> 16) & ~0xC0);
262 	cx_writeb(P1_MADDR1, (unsigned int)(address >> 8));
263 	cx_writeb(P1_MADDR0, (unsigned int)address);
264 	cx_read(P1_MADDR0);
265 
266 	retval = wait_ready_gpio0_bit1(core, 1);
267 
268 	cx_writeb(P1_MDATA3, 0);
269 	val     = (unsigned char)cx_read(P1_MDATA3) << 24;
270 	cx_writeb(P1_MDATA2, 0);
271 	val    |= (unsigned char)cx_read(P1_MDATA2) << 16;
272 	cx_writeb(P1_MDATA1, 0);
273 	val    |= (unsigned char)cx_read(P1_MDATA1) << 8;
274 	cx_writeb(P1_MDATA0, 0);
275 	val    |= (unsigned char)cx_read(P1_MDATA0);
276 
277 	*value  = val;
278 	return retval;
279 }
280 
281 static int register_write(struct cx88_core *core, u32 address, u32 value)
282 {
283 	cx_writeb(P1_RDATA0, (unsigned int)value);
284 	cx_writeb(P1_RDATA1, (unsigned int)(value >> 8));
285 	cx_writeb(P1_RDATA2, (unsigned int)(value >> 16));
286 	cx_writeb(P1_RDATA3, (unsigned int)(value >> 24));
287 	cx_writeb(P1_RADDR0, (unsigned int)address);
288 	cx_writeb(P1_RADDR1, (unsigned int)(address >> 8));
289 	cx_writeb(P1_RRDWR, 1);
290 	cx_read(P1_RDATA0);
291 	cx_read(P1_RADDR0);
292 
293 	return wait_ready_gpio0_bit1(core, 1);
294 }
295 
296 static int register_read(struct cx88_core *core, u32 address, u32 *value)
297 {
298 	int retval;
299 	u32 val;
300 
301 	cx_writeb(P1_RADDR0, (unsigned int)address);
302 	cx_writeb(P1_RADDR1, (unsigned int)(address >> 8));
303 	cx_writeb(P1_RRDWR, 0);
304 	cx_read(P1_RADDR0);
305 
306 	retval  = wait_ready_gpio0_bit1(core, 1);
307 	val     = (unsigned char)cx_read(P1_RDATA0);
308 	val    |= (unsigned char)cx_read(P1_RDATA1) << 8;
309 	val    |= (unsigned char)cx_read(P1_RDATA2) << 16;
310 	val    |= (unsigned char)cx_read(P1_RDATA3) << 24;
311 
312 	*value  = val;
313 	return retval;
314 }
315 
316 /* ------------------------------------------------------------------ */
317 
318 static int blackbird_mbox_func(void *priv, u32 command, int in,
319 			       int out, u32 data[CX2341X_MBOX_MAX_DATA])
320 {
321 	struct cx8802_dev *dev = priv;
322 	unsigned long timeout;
323 	u32 value, flag, retval;
324 	int i;
325 
326 	dprintk(1, "%s: 0x%X\n", __func__, command);
327 
328 	/*
329 	 * this may not be 100% safe if we can't read any memory location
330 	 * without side effects
331 	 */
332 	memory_read(dev->core, dev->mailbox - 4, &value);
333 	if (value != 0x12345678) {
334 		dprintk(0,
335 			"Firmware and/or mailbox pointer not initialized or corrupted\n");
336 		return -EIO;
337 	}
338 
339 	memory_read(dev->core, dev->mailbox, &flag);
340 	if (flag) {
341 		dprintk(0, "ERROR: Mailbox appears to be in use (%x)\n", flag);
342 		return -EIO;
343 	}
344 
345 	flag |= 1; /* tell 'em we're working on it */
346 	memory_write(dev->core, dev->mailbox, flag);
347 
348 	/* write command + args + fill remaining with zeros */
349 	memory_write(dev->core, dev->mailbox + 1, command); /* command code */
350 	/* timeout */
351 	memory_write(dev->core, dev->mailbox + 3, IVTV_API_STD_TIMEOUT);
352 	for (i = 0; i < in; i++) {
353 		memory_write(dev->core, dev->mailbox + 4 + i, data[i]);
354 		dprintk(1, "API Input %d = %d\n", i, data[i]);
355 	}
356 	for (; i < CX2341X_MBOX_MAX_DATA; i++)
357 		memory_write(dev->core, dev->mailbox + 4 + i, 0);
358 
359 	flag |= 3; /* tell 'em we're done writing */
360 	memory_write(dev->core, dev->mailbox, flag);
361 
362 	/* wait for firmware to handle the API command */
363 	timeout = jiffies + msecs_to_jiffies(1000);
364 	for (;;) {
365 		memory_read(dev->core, dev->mailbox, &flag);
366 		if (0 != (flag & 4))
367 			break;
368 		if (time_after(jiffies, timeout)) {
369 			dprintk(0, "ERROR: API Mailbox timeout %x\n", command);
370 			return -EIO;
371 		}
372 		udelay(10);
373 	}
374 
375 	/* read output values */
376 	for (i = 0; i < out; i++) {
377 		memory_read(dev->core, dev->mailbox + 4 + i, data + i);
378 		dprintk(1, "API Output %d = %d\n", i, data[i]);
379 	}
380 
381 	memory_read(dev->core, dev->mailbox + 2, &retval);
382 	dprintk(1, "API result = %d\n", retval);
383 
384 	flag = 0;
385 	memory_write(dev->core, dev->mailbox, flag);
386 	return retval;
387 }
388 
389 /* ------------------------------------------------------------------ */
390 
391 /*
392  * We don't need to call the API often, so using just one mailbox
393  * will probably suffice
394  */
395 static int blackbird_api_cmd(struct cx8802_dev *dev, u32 command,
396 			     u32 inputcnt, u32 outputcnt, ...)
397 {
398 	u32 data[CX2341X_MBOX_MAX_DATA];
399 	va_list vargs;
400 	int i, err;
401 
402 	va_start(vargs, outputcnt);
403 
404 	for (i = 0; i < inputcnt; i++)
405 		data[i] = va_arg(vargs, int);
406 
407 	err = blackbird_mbox_func(dev, command, inputcnt, outputcnt, data);
408 	for (i = 0; i < outputcnt; i++) {
409 		int *vptr = va_arg(vargs, int *);
410 		*vptr = data[i];
411 	}
412 	va_end(vargs);
413 	return err;
414 }
415 
416 static int blackbird_find_mailbox(struct cx8802_dev *dev)
417 {
418 	u32 signature[4] = {0x12345678, 0x34567812, 0x56781234, 0x78123456};
419 	int signaturecnt = 0;
420 	u32 value;
421 	int i;
422 
423 	for (i = 0; i < BLACKBIRD_FIRM_IMAGE_SIZE; i++) {
424 		memory_read(dev->core, i, &value);
425 		if (value == signature[signaturecnt])
426 			signaturecnt++;
427 		else
428 			signaturecnt = 0;
429 		if (signaturecnt == 4) {
430 			dprintk(1, "Mailbox signature found\n");
431 			return i + 1;
432 		}
433 	}
434 	dprintk(0, "Mailbox signature values not found!\n");
435 	return -EIO;
436 }
437 
438 static int blackbird_load_firmware(struct cx8802_dev *dev)
439 {
440 	static const unsigned char magic[8] = {
441 		0xa7, 0x0d, 0x00, 0x00, 0x66, 0xbb, 0x55, 0xaa
442 	};
443 	const struct firmware *firmware;
444 	int i, retval = 0;
445 	u32 value = 0;
446 	u32 checksum = 0;
447 	__le32 *dataptr;
448 
449 	retval  = register_write(dev->core, IVTV_REG_VPU, 0xFFFFFFED);
450 	retval |= register_write(dev->core, IVTV_REG_HW_BLOCKS,
451 				 IVTV_CMD_HW_BLOCKS_RST);
452 	retval |= register_write(dev->core, IVTV_REG_ENC_SDRAM_REFRESH,
453 				 0x80000640);
454 	retval |= register_write(dev->core, IVTV_REG_ENC_SDRAM_PRECHARGE,
455 				 0x1A);
456 	usleep_range(10000, 20000);
457 	retval |= register_write(dev->core, IVTV_REG_APU, 0);
458 
459 	if (retval < 0)
460 		dprintk(0, "Error with register_write\n");
461 
462 	retval = request_firmware(&firmware, CX2341X_FIRM_ENC_FILENAME,
463 				  &dev->pci->dev);
464 
465 	if (retval != 0) {
466 		pr_err("Hotplug firmware request failed (%s).\n",
467 		       CX2341X_FIRM_ENC_FILENAME);
468 		pr_err("Please fix your hotplug setup, the board will not work without firmware loaded!\n");
469 		return -EIO;
470 	}
471 
472 	if (firmware->size != BLACKBIRD_FIRM_IMAGE_SIZE) {
473 		pr_err("Firmware size mismatch (have %zd, expected %d)\n",
474 		       firmware->size, BLACKBIRD_FIRM_IMAGE_SIZE);
475 		release_firmware(firmware);
476 		return -EINVAL;
477 	}
478 
479 	if (memcmp(firmware->data, magic, 8) != 0) {
480 		pr_err("Firmware magic mismatch, wrong file?\n");
481 		release_firmware(firmware);
482 		return -EINVAL;
483 	}
484 
485 	/* transfer to the chip */
486 	dprintk(1, "Loading firmware ...\n");
487 	dataptr = (__le32 *)firmware->data;
488 	for (i = 0; i < (firmware->size >> 2); i++) {
489 		value = le32_to_cpu(*dataptr);
490 		checksum += ~value;
491 		memory_write(dev->core, i, value);
492 		dataptr++;
493 	}
494 
495 	/* read back to verify with the checksum */
496 	for (i--; i >= 0; i--) {
497 		memory_read(dev->core, i, &value);
498 		checksum -= ~value;
499 	}
500 	release_firmware(firmware);
501 	if (checksum) {
502 		pr_err("Firmware load might have failed (checksum mismatch).\n");
503 		return -EIO;
504 	}
505 	dprintk(0, "Firmware upload successful.\n");
506 
507 	retval |= register_write(dev->core, IVTV_REG_HW_BLOCKS,
508 				 IVTV_CMD_HW_BLOCKS_RST);
509 	retval |= register_read(dev->core, IVTV_REG_SPU, &value);
510 	retval |= register_write(dev->core, IVTV_REG_SPU, value & 0xFFFFFFFE);
511 	usleep_range(10000, 20000);
512 
513 	retval |= register_read(dev->core, IVTV_REG_VPU, &value);
514 	retval |= register_write(dev->core, IVTV_REG_VPU, value & 0xFFFFFFE8);
515 
516 	if (retval < 0)
517 		dprintk(0, "Error with register_write\n");
518 	return 0;
519 }
520 
521 /*
522  * Settings used by the windows tv app for PVR2000:
523  * =================================================================================================================
524  * Profile | Codec | Resolution | CBR/VBR | Video Qlty   | V. Bitrate | Frmrate | Audio Codec | A. Bitrate | A. Mode
525  * -----------------------------------------------------------------------------------------------------------------
526  * MPEG-1  | MPEG1 | 352x288PAL | (CBR)   | 1000:Optimal | 2000 Kbps  | 25fps   | MPG1 Layer2 | 224kbps    | Stereo
527  * MPEG-2  | MPEG2 | 720x576PAL | VBR     | 600 :Good    | 4000 Kbps  | 25fps   | MPG1 Layer2 | 224kbps    | Stereo
528  * VCD     | MPEG1 | 352x288PAL | (CBR)   | 1000:Optimal | 1150 Kbps  | 25fps   | MPG1 Layer2 | 224kbps    | Stereo
529  * DVD     | MPEG2 | 720x576PAL | VBR     | 600 :Good    | 6000 Kbps  | 25fps   | MPG1 Layer2 | 224kbps    | Stereo
530  * DB* DVD | MPEG2 | 720x576PAL | CBR     | 600 :Good    | 6000 Kbps  | 25fps   | MPG1 Layer2 | 224kbps    | Stereo
531  * =================================================================================================================
532  * [*] DB: "DirectBurn"
533  */
534 
535 static void blackbird_codec_settings(struct cx8802_dev *dev)
536 {
537 	struct cx88_core *core = dev->core;
538 
539 	/* assign frame size */
540 	blackbird_api_cmd(dev, CX2341X_ENC_SET_FRAME_SIZE, 2, 0,
541 			  core->height, core->width);
542 
543 	dev->cxhdl.width = core->width;
544 	dev->cxhdl.height = core->height;
545 	cx2341x_handler_set_50hz(&dev->cxhdl,
546 				 dev->core->tvnorm & V4L2_STD_625_50);
547 	cx2341x_handler_setup(&dev->cxhdl);
548 }
549 
550 static int blackbird_initialize_codec(struct cx8802_dev *dev)
551 {
552 	struct cx88_core *core = dev->core;
553 	int version;
554 	int retval;
555 
556 	dprintk(1, "Initialize codec\n");
557 	retval = blackbird_api_cmd(dev, CX2341X_ENC_PING_FW, 0, 0); /* ping */
558 	if (retval < 0) {
559 		/* ping was not successful, reset and upload firmware */
560 		cx_write(MO_SRST_IO, 0); /* SYS_RSTO=0 */
561 		cx_write(MO_SRST_IO, 1); /* SYS_RSTO=1 */
562 		retval = blackbird_load_firmware(dev);
563 		if (retval < 0)
564 			return retval;
565 
566 		retval = blackbird_find_mailbox(dev);
567 		if (retval < 0)
568 			return -1;
569 
570 		dev->mailbox = retval;
571 
572 		/* ping */
573 		retval = blackbird_api_cmd(dev, CX2341X_ENC_PING_FW, 0, 0);
574 		if (retval < 0) {
575 			dprintk(0, "ERROR: Firmware ping failed!\n");
576 			return -1;
577 		}
578 
579 		retval = blackbird_api_cmd(dev, CX2341X_ENC_GET_VERSION,
580 					   0, 1, &version);
581 		if (retval < 0) {
582 			dprintk(0,
583 				"ERROR: Firmware get encoder version failed!\n");
584 			return -1;
585 		}
586 		dprintk(0, "Firmware version is 0x%08x\n", version);
587 	}
588 
589 	cx_write(MO_PINMUX_IO, 0x88); /* 656-8bit IO and enable MPEG parallel IO */
590 	cx_clear(MO_INPUT_FORMAT, 0x100); /* chroma subcarrier lock to normal? */
591 	cx_write(MO_VBOS_CONTROL, 0x84A00); /* no 656 mode, 8-bit pixels, disable VBI */
592 	cx_clear(MO_OUTPUT_FORMAT, 0x0008); /* Normal Y-limits to let the mpeg encoder sync */
593 
594 	blackbird_codec_settings(dev);
595 
596 	blackbird_api_cmd(dev, CX2341X_ENC_SET_NUM_VSYNC_LINES, 2, 0,
597 			  BLACKBIRD_FIELD1_SAA7115, BLACKBIRD_FIELD2_SAA7115);
598 
599 	blackbird_api_cmd(dev, CX2341X_ENC_SET_PLACEHOLDER, 12, 0,
600 			  BLACKBIRD_CUSTOM_EXTENSION_USR_DATA,
601 			  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
602 
603 	return 0;
604 }
605 
606 static int blackbird_start_codec(struct cx8802_dev *dev)
607 {
608 	struct cx88_core *core = dev->core;
609 	/* start capturing to the host interface */
610 	u32 reg;
611 
612 	int i;
613 	int lastchange = -1;
614 	int lastval = 0;
615 
616 	for (i = 0; (i < 10) && (i < (lastchange + 4)); i++) {
617 		reg = cx_read(AUD_STATUS);
618 
619 		dprintk(1, "AUD_STATUS:%dL: 0x%x\n", i, reg);
620 		if ((reg & 0x0F) != lastval) {
621 			lastval = reg & 0x0F;
622 			lastchange = i;
623 		}
624 		msleep(100);
625 	}
626 
627 	/* unmute audio source */
628 	cx_clear(AUD_VOL_CTL, (1 << 6));
629 
630 	blackbird_api_cmd(dev, CX2341X_ENC_REFRESH_INPUT, 0, 0);
631 
632 	/* initialize the video input */
633 	blackbird_api_cmd(dev, CX2341X_ENC_INITIALIZE_INPUT, 0, 0);
634 
635 	cx2341x_handler_set_busy(&dev->cxhdl, 1);
636 
637 	/* start capturing to the host interface */
638 	blackbird_api_cmd(dev, CX2341X_ENC_START_CAPTURE, 2, 0,
639 			  BLACKBIRD_MPEG_CAPTURE, BLACKBIRD_RAW_BITS_NONE);
640 
641 	return 0;
642 }
643 
644 static int blackbird_stop_codec(struct cx8802_dev *dev)
645 {
646 	blackbird_api_cmd(dev, CX2341X_ENC_STOP_CAPTURE, 3, 0,
647 			  BLACKBIRD_END_NOW,
648 			  BLACKBIRD_MPEG_CAPTURE,
649 			  BLACKBIRD_RAW_BITS_NONE);
650 
651 	cx2341x_handler_set_busy(&dev->cxhdl, 0);
652 
653 	return 0;
654 }
655 
656 /* ------------------------------------------------------------------ */
657 
658 static int queue_setup(struct vb2_queue *q,
659 		       unsigned int *num_buffers, unsigned int *num_planes,
660 		       unsigned int sizes[], struct device *alloc_devs[])
661 {
662 	struct cx8802_dev *dev = q->drv_priv;
663 
664 	*num_planes = 1;
665 	dev->ts_packet_size  = 188 * 4;
666 	dev->ts_packet_count  = 32;
667 	sizes[0] = dev->ts_packet_size * dev->ts_packet_count;
668 	return 0;
669 }
670 
671 static int buffer_prepare(struct vb2_buffer *vb)
672 {
673 	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
674 	struct cx8802_dev *dev = vb->vb2_queue->drv_priv;
675 	struct cx88_buffer *buf = container_of(vbuf, struct cx88_buffer, vb);
676 
677 	return cx8802_buf_prepare(vb->vb2_queue, dev, buf);
678 }
679 
680 static void buffer_finish(struct vb2_buffer *vb)
681 {
682 	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
683 	struct cx8802_dev *dev = vb->vb2_queue->drv_priv;
684 	struct cx88_buffer *buf = container_of(vbuf, struct cx88_buffer, vb);
685 	struct cx88_riscmem *risc = &buf->risc;
686 
687 	if (risc->cpu)
688 		pci_free_consistent(dev->pci, risc->size, risc->cpu, risc->dma);
689 	memset(risc, 0, sizeof(*risc));
690 }
691 
692 static void buffer_queue(struct vb2_buffer *vb)
693 {
694 	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
695 	struct cx8802_dev *dev = vb->vb2_queue->drv_priv;
696 	struct cx88_buffer    *buf = container_of(vbuf, struct cx88_buffer, vb);
697 
698 	cx8802_buf_queue(dev, buf);
699 }
700 
701 static int start_streaming(struct vb2_queue *q, unsigned int count)
702 {
703 	struct cx8802_dev *dev = q->drv_priv;
704 	struct cx88_dmaqueue *dmaq = &dev->mpegq;
705 	struct cx8802_driver *drv;
706 	struct cx88_buffer *buf;
707 	unsigned long flags;
708 	int err;
709 
710 	/* Make sure we can acquire the hardware */
711 	drv = cx8802_get_driver(dev, CX88_MPEG_BLACKBIRD);
712 	if (!drv) {
713 		dprintk(1, "%s: blackbird driver is not loaded\n", __func__);
714 		err = -ENODEV;
715 		goto fail;
716 	}
717 
718 	err = drv->request_acquire(drv);
719 	if (err != 0) {
720 		dprintk(1, "%s: Unable to acquire hardware, %d\n", __func__,
721 			err);
722 		goto fail;
723 	}
724 
725 	if (blackbird_initialize_codec(dev) < 0) {
726 		drv->request_release(drv);
727 		err = -EINVAL;
728 		goto fail;
729 	}
730 
731 	err = blackbird_start_codec(dev);
732 	if (err == 0) {
733 		buf = list_entry(dmaq->active.next, struct cx88_buffer, list);
734 		cx8802_start_dma(dev, dmaq, buf);
735 		return 0;
736 	}
737 
738 fail:
739 	spin_lock_irqsave(&dev->slock, flags);
740 	while (!list_empty(&dmaq->active)) {
741 		struct cx88_buffer *buf = list_entry(dmaq->active.next,
742 			struct cx88_buffer, list);
743 
744 		list_del(&buf->list);
745 		vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_QUEUED);
746 	}
747 	spin_unlock_irqrestore(&dev->slock, flags);
748 	return err;
749 }
750 
751 static void stop_streaming(struct vb2_queue *q)
752 {
753 	struct cx8802_dev *dev = q->drv_priv;
754 	struct cx88_dmaqueue *dmaq = &dev->mpegq;
755 	struct cx8802_driver *drv = NULL;
756 	unsigned long flags;
757 
758 	cx8802_cancel_buffers(dev);
759 	blackbird_stop_codec(dev);
760 
761 	/* Make sure we release the hardware */
762 	drv = cx8802_get_driver(dev, CX88_MPEG_BLACKBIRD);
763 	WARN_ON(!drv);
764 	if (drv)
765 		drv->request_release(drv);
766 
767 	spin_lock_irqsave(&dev->slock, flags);
768 	while (!list_empty(&dmaq->active)) {
769 		struct cx88_buffer *buf = list_entry(dmaq->active.next,
770 			struct cx88_buffer, list);
771 
772 		list_del(&buf->list);
773 		vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
774 	}
775 	spin_unlock_irqrestore(&dev->slock, flags);
776 }
777 
778 static const struct vb2_ops blackbird_qops = {
779 	.queue_setup    = queue_setup,
780 	.buf_prepare  = buffer_prepare,
781 	.buf_finish = buffer_finish,
782 	.buf_queue    = buffer_queue,
783 	.wait_prepare = vb2_ops_wait_prepare,
784 	.wait_finish = vb2_ops_wait_finish,
785 	.start_streaming = start_streaming,
786 	.stop_streaming = stop_streaming,
787 };
788 
789 /* ------------------------------------------------------------------ */
790 
791 static int vidioc_querycap(struct file *file, void  *priv,
792 			   struct v4l2_capability *cap)
793 {
794 	struct cx8802_dev *dev = video_drvdata(file);
795 	struct cx88_core *core = dev->core;
796 
797 	strscpy(cap->driver, "cx88_blackbird", sizeof(cap->driver));
798 	sprintf(cap->bus_info, "PCI:%s", pci_name(dev->pci));
799 	return cx88_querycap(file, core, cap);
800 }
801 
802 static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
803 				   struct v4l2_fmtdesc *f)
804 {
805 	if (f->index != 0)
806 		return -EINVAL;
807 
808 	f->pixelformat = V4L2_PIX_FMT_MPEG;
809 	return 0;
810 }
811 
812 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
813 				struct v4l2_format *f)
814 {
815 	struct cx8802_dev *dev = video_drvdata(file);
816 	struct cx88_core *core = dev->core;
817 
818 	f->fmt.pix.pixelformat  = V4L2_PIX_FMT_MPEG;
819 	f->fmt.pix.bytesperline = 0;
820 	f->fmt.pix.sizeimage    = dev->ts_packet_size * dev->ts_packet_count;
821 	f->fmt.pix.colorspace   = V4L2_COLORSPACE_SMPTE170M;
822 	f->fmt.pix.width        = core->width;
823 	f->fmt.pix.height       = core->height;
824 	f->fmt.pix.field        = core->field;
825 	return 0;
826 }
827 
828 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
829 				  struct v4l2_format *f)
830 {
831 	struct cx8802_dev *dev = video_drvdata(file);
832 	struct cx88_core *core = dev->core;
833 	unsigned int maxw, maxh;
834 	enum v4l2_field field;
835 
836 	f->fmt.pix.pixelformat  = V4L2_PIX_FMT_MPEG;
837 	f->fmt.pix.bytesperline = 0;
838 	f->fmt.pix.sizeimage    = dev->ts_packet_size * dev->ts_packet_count;
839 	f->fmt.pix.colorspace   = V4L2_COLORSPACE_SMPTE170M;
840 
841 	maxw = norm_maxw(core->tvnorm);
842 	maxh = norm_maxh(core->tvnorm);
843 
844 	field = f->fmt.pix.field;
845 
846 	switch (field) {
847 	case V4L2_FIELD_TOP:
848 	case V4L2_FIELD_BOTTOM:
849 	case V4L2_FIELD_INTERLACED:
850 	case V4L2_FIELD_SEQ_BT:
851 	case V4L2_FIELD_SEQ_TB:
852 		break;
853 	default:
854 		field = (f->fmt.pix.height > maxh / 2)
855 			? V4L2_FIELD_INTERLACED
856 			: V4L2_FIELD_BOTTOM;
857 		break;
858 	}
859 	if (V4L2_FIELD_HAS_T_OR_B(field))
860 		maxh /= 2;
861 
862 	v4l_bound_align_image(&f->fmt.pix.width, 48, maxw, 2,
863 			      &f->fmt.pix.height, 32, maxh, 0, 0);
864 	f->fmt.pix.field = field;
865 	return 0;
866 }
867 
868 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
869 				struct v4l2_format *f)
870 {
871 	struct cx8802_dev *dev = video_drvdata(file);
872 	struct cx88_core  *core = dev->core;
873 
874 	if (vb2_is_busy(&dev->vb2_mpegq))
875 		return -EBUSY;
876 	if (core->v4ldev && (vb2_is_busy(&core->v4ldev->vb2_vidq) ||
877 			     vb2_is_busy(&core->v4ldev->vb2_vbiq)))
878 		return -EBUSY;
879 	vidioc_try_fmt_vid_cap(file, priv, f);
880 	core->width = f->fmt.pix.width;
881 	core->height = f->fmt.pix.height;
882 	core->field = f->fmt.pix.field;
883 	cx88_set_scale(core, f->fmt.pix.width, f->fmt.pix.height,
884 		       f->fmt.pix.field);
885 	blackbird_api_cmd(dev, CX2341X_ENC_SET_FRAME_SIZE, 2, 0,
886 			  f->fmt.pix.height, f->fmt.pix.width);
887 	return 0;
888 }
889 
890 static int vidioc_s_frequency(struct file *file, void *priv,
891 			      const struct v4l2_frequency *f)
892 {
893 	struct cx8802_dev *dev = video_drvdata(file);
894 	struct cx88_core *core = dev->core;
895 	bool streaming;
896 
897 	if (unlikely(core->board.tuner_type == UNSET))
898 		return -EINVAL;
899 	if (unlikely(f->tuner != 0))
900 		return -EINVAL;
901 	streaming = vb2_start_streaming_called(&dev->vb2_mpegq);
902 	if (streaming)
903 		blackbird_stop_codec(dev);
904 
905 	cx88_set_freq(core, f);
906 	blackbird_initialize_codec(dev);
907 	cx88_set_scale(core, core->width, core->height, core->field);
908 	if (streaming)
909 		blackbird_start_codec(dev);
910 	return 0;
911 }
912 
913 static int vidioc_log_status(struct file *file, void *priv)
914 {
915 	struct cx8802_dev *dev = video_drvdata(file);
916 	struct cx88_core *core = dev->core;
917 	char name[32 + 2];
918 
919 	snprintf(name, sizeof(name), "%s/2", core->name);
920 	call_all(core, core, log_status);
921 	v4l2_ctrl_handler_log_status(&dev->cxhdl.hdl, name);
922 	return 0;
923 }
924 
925 static int vidioc_enum_input(struct file *file, void *priv,
926 			     struct v4l2_input *i)
927 {
928 	struct cx8802_dev *dev = video_drvdata(file);
929 	struct cx88_core *core = dev->core;
930 
931 	return cx88_enum_input(core, i);
932 }
933 
934 static int vidioc_g_frequency(struct file *file, void *priv,
935 			      struct v4l2_frequency *f)
936 {
937 	struct cx8802_dev *dev = video_drvdata(file);
938 	struct cx88_core *core = dev->core;
939 
940 	if (unlikely(core->board.tuner_type == UNSET))
941 		return -EINVAL;
942 	if (unlikely(f->tuner != 0))
943 		return -EINVAL;
944 
945 	f->frequency = core->freq;
946 	call_all(core, tuner, g_frequency, f);
947 
948 	return 0;
949 }
950 
951 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
952 {
953 	struct cx8802_dev *dev = video_drvdata(file);
954 	struct cx88_core *core = dev->core;
955 
956 	*i = core->input;
957 	return 0;
958 }
959 
960 static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
961 {
962 	struct cx8802_dev *dev = video_drvdata(file);
963 	struct cx88_core *core = dev->core;
964 
965 	if (i >= 4)
966 		return -EINVAL;
967 	if (!INPUT(i).type)
968 		return -EINVAL;
969 
970 	cx88_newstation(core);
971 	cx88_video_mux(core, i);
972 	return 0;
973 }
974 
975 static int vidioc_g_tuner(struct file *file, void *priv,
976 			  struct v4l2_tuner *t)
977 {
978 	struct cx8802_dev *dev = video_drvdata(file);
979 	struct cx88_core *core = dev->core;
980 	u32 reg;
981 
982 	if (unlikely(core->board.tuner_type == UNSET))
983 		return -EINVAL;
984 	if (t->index != 0)
985 		return -EINVAL;
986 
987 	strscpy(t->name, "Television", sizeof(t->name));
988 	t->capability = V4L2_TUNER_CAP_NORM;
989 	t->rangehigh  = 0xffffffffUL;
990 	call_all(core, tuner, g_tuner, t);
991 
992 	cx88_get_stereo(core, t);
993 	reg = cx_read(MO_DEVICE_STATUS);
994 	t->signal = (reg & (1 << 5)) ? 0xffff : 0x0000;
995 	return 0;
996 }
997 
998 static int vidioc_s_tuner(struct file *file, void *priv,
999 			  const struct v4l2_tuner *t)
1000 {
1001 	struct cx8802_dev *dev = video_drvdata(file);
1002 	struct cx88_core *core = dev->core;
1003 
1004 	if (core->board.tuner_type == UNSET)
1005 		return -EINVAL;
1006 	if (t->index != 0)
1007 		return -EINVAL;
1008 
1009 	cx88_set_stereo(core, t->audmode, 1);
1010 	return 0;
1011 }
1012 
1013 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *tvnorm)
1014 {
1015 	struct cx8802_dev *dev = video_drvdata(file);
1016 	struct cx88_core *core = dev->core;
1017 
1018 	*tvnorm = core->tvnorm;
1019 	return 0;
1020 }
1021 
1022 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id id)
1023 {
1024 	struct cx8802_dev *dev = video_drvdata(file);
1025 	struct cx88_core *core = dev->core;
1026 
1027 	return cx88_set_tvnorm(core, id);
1028 }
1029 
1030 static const struct v4l2_file_operations mpeg_fops = {
1031 	.owner	       = THIS_MODULE,
1032 	.open	       = v4l2_fh_open,
1033 	.release       = vb2_fop_release,
1034 	.read	       = vb2_fop_read,
1035 	.poll          = vb2_fop_poll,
1036 	.mmap	       = vb2_fop_mmap,
1037 	.unlocked_ioctl = video_ioctl2,
1038 };
1039 
1040 static const struct v4l2_ioctl_ops mpeg_ioctl_ops = {
1041 	.vidioc_querycap      = vidioc_querycap,
1042 	.vidioc_enum_fmt_vid_cap  = vidioc_enum_fmt_vid_cap,
1043 	.vidioc_g_fmt_vid_cap     = vidioc_g_fmt_vid_cap,
1044 	.vidioc_try_fmt_vid_cap   = vidioc_try_fmt_vid_cap,
1045 	.vidioc_s_fmt_vid_cap     = vidioc_s_fmt_vid_cap,
1046 	.vidioc_reqbufs       = vb2_ioctl_reqbufs,
1047 	.vidioc_querybuf      = vb2_ioctl_querybuf,
1048 	.vidioc_qbuf          = vb2_ioctl_qbuf,
1049 	.vidioc_dqbuf         = vb2_ioctl_dqbuf,
1050 	.vidioc_streamon      = vb2_ioctl_streamon,
1051 	.vidioc_streamoff     = vb2_ioctl_streamoff,
1052 	.vidioc_s_frequency   = vidioc_s_frequency,
1053 	.vidioc_log_status    = vidioc_log_status,
1054 	.vidioc_enum_input    = vidioc_enum_input,
1055 	.vidioc_g_frequency   = vidioc_g_frequency,
1056 	.vidioc_g_input       = vidioc_g_input,
1057 	.vidioc_s_input       = vidioc_s_input,
1058 	.vidioc_g_tuner       = vidioc_g_tuner,
1059 	.vidioc_s_tuner       = vidioc_s_tuner,
1060 	.vidioc_g_std         = vidioc_g_std,
1061 	.vidioc_s_std         = vidioc_s_std,
1062 	.vidioc_subscribe_event      = v4l2_ctrl_subscribe_event,
1063 	.vidioc_unsubscribe_event    = v4l2_event_unsubscribe,
1064 };
1065 
1066 static const struct video_device cx8802_mpeg_template = {
1067 	.name                 = "cx8802",
1068 	.fops                 = &mpeg_fops,
1069 	.ioctl_ops	      = &mpeg_ioctl_ops,
1070 	.tvnorms              = CX88_NORMS,
1071 };
1072 
1073 /* ------------------------------------------------------------------ */
1074 
1075 /* The CX8802 MPEG API will call this when we can use the hardware */
1076 static int cx8802_blackbird_advise_acquire(struct cx8802_driver *drv)
1077 {
1078 	struct cx88_core *core = drv->core;
1079 	int err = 0;
1080 
1081 	switch (core->boardnr) {
1082 	case CX88_BOARD_HAUPPAUGE_HVR1300:
1083 		/*
1084 		 * By default, core setup will leave the cx22702 out of reset,
1085 		 * on the bus.
1086 		 * We left the hardware on power up with the cx22702 active.
1087 		 * We're being given access to re-arrange the GPIOs.
1088 		 * Take the bus off the cx22702 and put the cx23416 on it.
1089 		 */
1090 		/* Toggle reset on cx22702 leaving i2c active */
1091 		cx_set(MO_GP0_IO, 0x00000080);
1092 		udelay(1000);
1093 		cx_clear(MO_GP0_IO, 0x00000080);
1094 		udelay(50);
1095 		cx_set(MO_GP0_IO, 0x00000080);
1096 		udelay(1000);
1097 		/* tri-state the cx22702 pins */
1098 		cx_set(MO_GP0_IO, 0x00000004);
1099 		udelay(1000);
1100 		break;
1101 	default:
1102 		err = -ENODEV;
1103 	}
1104 	return err;
1105 }
1106 
1107 /* The CX8802 MPEG API will call this when we need to release the hardware */
1108 static int cx8802_blackbird_advise_release(struct cx8802_driver *drv)
1109 {
1110 	struct cx88_core *core = drv->core;
1111 	int err = 0;
1112 
1113 	switch (core->boardnr) {
1114 	case CX88_BOARD_HAUPPAUGE_HVR1300:
1115 		/* Exit leaving the cx23416 on the bus */
1116 		break;
1117 	default:
1118 		err = -ENODEV;
1119 	}
1120 	return err;
1121 }
1122 
1123 static void blackbird_unregister_video(struct cx8802_dev *dev)
1124 {
1125 	video_unregister_device(&dev->mpeg_dev);
1126 }
1127 
1128 static int blackbird_register_video(struct cx8802_dev *dev)
1129 {
1130 	int err;
1131 
1132 	cx88_vdev_init(dev->core, dev->pci, &dev->mpeg_dev,
1133 		       &cx8802_mpeg_template, "mpeg");
1134 	dev->mpeg_dev.ctrl_handler = &dev->cxhdl.hdl;
1135 	video_set_drvdata(&dev->mpeg_dev, dev);
1136 	dev->mpeg_dev.queue = &dev->vb2_mpegq;
1137 	dev->mpeg_dev.device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
1138 				    V4L2_CAP_VIDEO_CAPTURE;
1139 	if (dev->core->board.tuner_type != UNSET)
1140 		dev->mpeg_dev.device_caps |= V4L2_CAP_TUNER;
1141 	err = video_register_device(&dev->mpeg_dev, VFL_TYPE_GRABBER, -1);
1142 	if (err < 0) {
1143 		pr_info("can't register mpeg device\n");
1144 		return err;
1145 	}
1146 	pr_info("registered device %s [mpeg]\n",
1147 		video_device_node_name(&dev->mpeg_dev));
1148 	return 0;
1149 }
1150 
1151 /* ----------------------------------------------------------- */
1152 
1153 static int cx8802_blackbird_probe(struct cx8802_driver *drv)
1154 {
1155 	struct cx88_core *core = drv->core;
1156 	struct cx8802_dev *dev = core->dvbdev;
1157 	struct vb2_queue *q;
1158 	int err;
1159 
1160 	dprintk(1, "%s\n", __func__);
1161 	dprintk(1, " ->being probed by Card=%d Name=%s, PCI %02x:%02x\n",
1162 		core->boardnr,
1163 		core->name,
1164 		core->pci_bus,
1165 		core->pci_slot);
1166 
1167 	err = -ENODEV;
1168 	if (!(core->board.mpeg & CX88_MPEG_BLACKBIRD))
1169 		goto fail_core;
1170 
1171 	dev->cxhdl.port = CX2341X_PORT_STREAMING;
1172 	dev->cxhdl.width = core->width;
1173 	dev->cxhdl.height = core->height;
1174 	dev->cxhdl.func = blackbird_mbox_func;
1175 	dev->cxhdl.priv = dev;
1176 	err = cx2341x_handler_init(&dev->cxhdl, 36);
1177 	if (err)
1178 		goto fail_core;
1179 	v4l2_ctrl_add_handler(&dev->cxhdl.hdl, &core->video_hdl, NULL, false);
1180 
1181 	/* blackbird stuff */
1182 	pr_info("cx23416 based mpeg encoder (blackbird reference design)\n");
1183 	host_setup(dev->core);
1184 
1185 	blackbird_initialize_codec(dev);
1186 
1187 	/* initial device configuration: needed ? */
1188 //	init_controls(core);
1189 	cx88_set_tvnorm(core, core->tvnorm);
1190 	cx88_video_mux(core, 0);
1191 	cx2341x_handler_set_50hz(&dev->cxhdl, core->height == 576);
1192 	cx2341x_handler_setup(&dev->cxhdl);
1193 
1194 	q = &dev->vb2_mpegq;
1195 	q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1196 	q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF | VB2_READ;
1197 	q->gfp_flags = GFP_DMA32;
1198 	q->min_buffers_needed = 2;
1199 	q->drv_priv = dev;
1200 	q->buf_struct_size = sizeof(struct cx88_buffer);
1201 	q->ops = &blackbird_qops;
1202 	q->mem_ops = &vb2_dma_sg_memops;
1203 	q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1204 	q->lock = &core->lock;
1205 	q->dev = &dev->pci->dev;
1206 
1207 	err = vb2_queue_init(q);
1208 	if (err < 0)
1209 		goto fail_core;
1210 
1211 	blackbird_register_video(dev);
1212 
1213 	return 0;
1214 
1215 fail_core:
1216 	return err;
1217 }
1218 
1219 static int cx8802_blackbird_remove(struct cx8802_driver *drv)
1220 {
1221 	struct cx88_core *core = drv->core;
1222 	struct cx8802_dev *dev = core->dvbdev;
1223 
1224 	/* blackbird */
1225 	blackbird_unregister_video(drv->core->dvbdev);
1226 	v4l2_ctrl_handler_free(&dev->cxhdl.hdl);
1227 
1228 	return 0;
1229 }
1230 
1231 static struct cx8802_driver cx8802_blackbird_driver = {
1232 	.type_id	= CX88_MPEG_BLACKBIRD,
1233 	.hw_access	= CX8802_DRVCTL_SHARED,
1234 	.probe		= cx8802_blackbird_probe,
1235 	.remove		= cx8802_blackbird_remove,
1236 	.advise_acquire	= cx8802_blackbird_advise_acquire,
1237 	.advise_release	= cx8802_blackbird_advise_release,
1238 };
1239 
1240 static int __init blackbird_init(void)
1241 {
1242 	pr_info("cx2388x blackbird driver version %s loaded\n",
1243 		CX88_VERSION);
1244 	return cx8802_register_driver(&cx8802_blackbird_driver);
1245 }
1246 
1247 static void __exit blackbird_fini(void)
1248 {
1249 	cx8802_unregister_driver(&cx8802_blackbird_driver);
1250 }
1251 
1252 module_init(blackbird_init);
1253 module_exit(blackbird_fini);
1254