1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  * Zoran zr36057/zr36067 PCI controller driver, for the
4  * Pinnacle/Miro DC10/DC10+/DC30/DC30+, Iomega Buz, Linux
5  * Media Labs LML33/LML33R10.
6  *
7  * This part handles card-specific data and detection
8  *
9  * Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx>
10  */
11 
12 #include <linux/delay.h>
13 #include <linux/kernel.h>
14 #include <linux/module.h>
15 #include <linux/slab.h>
16 
17 #include <linux/i2c.h>
18 #include <linux/i2c-algo-bit.h>
19 #include <linux/videodev2.h>
20 #include <linux/spinlock.h>
21 
22 #include <linux/pci.h>
23 #include <linux/interrupt.h>
24 #include <linux/io.h>
25 #include <media/v4l2-common.h>
26 #include <media/i2c/bt819.h>
27 
28 #include "videocodec.h"
29 #include "zoran.h"
30 #include "zoran_card.h"
31 #include "zoran_device.h"
32 
33 extern const struct zoran_format zoran_formats[];
34 
35 static int card[BUZ_MAX] = { [0 ... (BUZ_MAX - 1)] = -1 };
36 module_param_array(card, int, NULL, 0444);
37 MODULE_PARM_DESC(card, "Card type");
38 
39 /*
40  * The video mem address of the video card. The driver has a little database
41  * for some videocards to determine it from there. If your video card is not
42  * in there you have either to give it to the driver as a parameter or set
43  * in a VIDIOCSFBUF ioctl
44  */
45 
46 static unsigned long vidmem;	/* default = 0 - Video memory base address */
47 module_param_hw(vidmem, ulong, iomem, 0444);
48 MODULE_PARM_DESC(vidmem, "Default video memory base address");
49 
50 /* Default input and video norm at startup of the driver. */
51 
52 static unsigned int default_input;	/* default 0 = Composite, 1 = S-Video */
53 module_param(default_input, uint, 0444);
54 MODULE_PARM_DESC(default_input,
55 		 "Default input (0=Composite, 1=S-Video, 2=Internal)");
56 
57 static int default_mux = 1;	/* 6 Eyes input selection */
58 module_param(default_mux, int, 0644);
59 MODULE_PARM_DESC(default_mux,
60 		 "Default 6 Eyes mux setting (Input selection)");
61 
62 static int default_norm;	/* default 0 = PAL, 1 = NTSC 2 = SECAM */
63 module_param(default_norm, int, 0444);
64 MODULE_PARM_DESC(default_norm, "Default norm (0=PAL, 1=NTSC, 2=SECAM)");
65 
66 /* /dev/videoN, -1 for autodetect */
67 static int video_nr[BUZ_MAX] = { [0 ... (BUZ_MAX - 1)] = -1 };
68 module_param_array(video_nr, int, NULL, 0444);
69 MODULE_PARM_DESC(video_nr, "Video device number (-1=Auto)");
70 
71 int v4l_nbufs = 4;
72 int v4l_bufsize = 864;		/* Everybody should be able to work with this setting */
73 module_param(v4l_nbufs, int, 0644);
74 MODULE_PARM_DESC(v4l_nbufs, "Maximum number of V4L buffers to use");
75 module_param(v4l_bufsize, int, 0644);
76 MODULE_PARM_DESC(v4l_bufsize, "Maximum size per V4L buffer (in kB)");
77 
78 int jpg_nbufs = 32;
79 int jpg_bufsize = 512;		/* max size for 100% quality full-PAL frame */
80 module_param(jpg_nbufs, int, 0644);
81 MODULE_PARM_DESC(jpg_nbufs, "Maximum number of JPG buffers to use");
82 module_param(jpg_bufsize, int, 0644);
83 MODULE_PARM_DESC(jpg_bufsize, "Maximum size per JPG buffer (in kB)");
84 
85 /* 1=Pass through TV signal when device is not used */
86 /* 0=Show color bar when device is not used (LML33: only if lml33dpath=1) */
87 int pass_through;
88 module_param(pass_through, int, 0644);
89 MODULE_PARM_DESC(pass_through,
90 		 "Pass TV signal through to TV-out when idling");
91 
92 int zr36067_debug = 1;
93 module_param_named(debug, zr36067_debug, int, 0644);
94 MODULE_PARM_DESC(debug, "Debug level (0-5)");
95 
96 #define ZORAN_VERSION "0.10.1"
97 
98 MODULE_DESCRIPTION("Zoran-36057/36067 JPEG codec driver");
99 MODULE_AUTHOR("Serguei Miridonov");
100 MODULE_LICENSE("GPL");
101 MODULE_VERSION(ZORAN_VERSION);
102 
103 #define ZR_DEVICE(subven, subdev, data)	{ \
104 	.vendor = PCI_VENDOR_ID_ZORAN, .device = PCI_DEVICE_ID_ZORAN_36057, \
105 	.subvendor = (subven), .subdevice = (subdev), .driver_data = (data) }
106 
107 static const struct pci_device_id zr36067_pci_tbl[] = {
108 	ZR_DEVICE(PCI_VENDOR_ID_MIRO, PCI_DEVICE_ID_MIRO_DC10PLUS, DC10_PLUS),
109 	ZR_DEVICE(PCI_VENDOR_ID_MIRO, PCI_DEVICE_ID_MIRO_DC30PLUS, DC30_PLUS),
110 	ZR_DEVICE(PCI_VENDOR_ID_ELECTRONICDESIGNGMBH, PCI_DEVICE_ID_LML_33R10, LML33R10),
111 	ZR_DEVICE(PCI_VENDOR_ID_IOMEGA, PCI_DEVICE_ID_IOMEGA_BUZ, BUZ),
112 	ZR_DEVICE(PCI_ANY_ID, PCI_ANY_ID, NUM_CARDS),
113 	{0}
114 };
115 MODULE_DEVICE_TABLE(pci, zr36067_pci_tbl);
116 
117 static unsigned int zoran_num;		/* number of cards found */
118 
119 /* videocodec bus functions ZR36060 */
zr36060_read(struct videocodec * codec,u16 reg)120 static u32 zr36060_read(struct videocodec *codec, u16 reg)
121 {
122 	struct zoran *zr = (struct zoran *)codec->master_data->data;
123 	__u32 data;
124 
125 	if (post_office_wait(zr) || post_office_write(zr, 0, 1, reg >> 8) ||
126 	    post_office_write(zr, 0, 2, reg & 0xff))
127 		return -1;
128 
129 	data = post_office_read(zr, 0, 3) & 0xff;
130 	return data;
131 }
132 
zr36060_write(struct videocodec * codec,u16 reg,u32 val)133 static void zr36060_write(struct videocodec *codec, u16 reg, u32 val)
134 {
135 	struct zoran *zr = (struct zoran *)codec->master_data->data;
136 
137 	if (post_office_wait(zr) || post_office_write(zr, 0, 1, reg >> 8) ||
138 	    post_office_write(zr, 0, 2, reg & 0xff))
139 		return;
140 
141 	post_office_write(zr, 0, 3, val & 0xff);
142 }
143 
144 /* videocodec bus functions ZR36050 */
zr36050_read(struct videocodec * codec,u16 reg)145 static u32 zr36050_read(struct videocodec *codec, u16 reg)
146 {
147 	struct zoran *zr = (struct zoran *)codec->master_data->data;
148 	__u32 data;
149 
150 	if (post_office_wait(zr) || post_office_write(zr, 1, 0, reg >> 2))	// reg. HIGHBYTES
151 		return -1;
152 
153 	data = post_office_read(zr, 0, reg & 0x03) & 0xff;	// reg. LOWBYTES + read
154 	return data;
155 }
156 
zr36050_write(struct videocodec * codec,u16 reg,u32 val)157 static void zr36050_write(struct videocodec *codec, u16 reg, u32 val)
158 {
159 	struct zoran *zr = (struct zoran *)codec->master_data->data;
160 
161 	if (post_office_wait(zr) || post_office_write(zr, 1, 0, reg >> 2))	// reg. HIGHBYTES
162 		return;
163 
164 	post_office_write(zr, 0, reg & 0x03, val & 0xff);	// reg. LOWBYTES + wr. data
165 }
166 
167 /* videocodec bus functions ZR36016 */
zr36016_read(struct videocodec * codec,u16 reg)168 static u32 zr36016_read(struct videocodec *codec, u16 reg)
169 {
170 	struct zoran *zr = (struct zoran *)codec->master_data->data;
171 	__u32 data;
172 
173 	if (post_office_wait(zr))
174 		return -1;
175 
176 	data = post_office_read(zr, 2, reg & 0x03) & 0xff;	// read
177 	return data;
178 }
179 
180 /* hack for in zoran_device.c */
zr36016_write(struct videocodec * codec,u16 reg,u32 val)181 void zr36016_write(struct videocodec *codec, u16 reg, u32 val)
182 {
183 	struct zoran *zr = (struct zoran *)codec->master_data->data;
184 
185 	if (post_office_wait(zr))
186 		return;
187 
188 	post_office_write(zr, 2, reg & 0x03, val & 0x0ff);	// wr. data
189 }
190 
191 /*
192  * Board specific information
193  */
194 
dc10_init(struct zoran * zr)195 static void dc10_init(struct zoran *zr)
196 {
197 	pci_dbg(zr->pci_dev, "%s\n", __func__);
198 
199 	/* Pixel clock selection */
200 	GPIO(zr, 4, 0);
201 	GPIO(zr, 5, 1);
202 	/* Enable the video bus sync signals */
203 	GPIO(zr, 7, 0);
204 }
205 
dc10plus_init(struct zoran * zr)206 static void dc10plus_init(struct zoran *zr)
207 {
208 	pci_dbg(zr->pci_dev, "%s\n", __func__);
209 }
210 
buz_init(struct zoran * zr)211 static void buz_init(struct zoran *zr)
212 {
213 	pci_dbg(zr->pci_dev, "%s\n", __func__);
214 
215 	/* some stuff from Iomega */
216 	pci_write_config_dword(zr->pci_dev, 0xfc, 0x90680f15);
217 	pci_write_config_dword(zr->pci_dev, 0x0c, 0x00012020);
218 	pci_write_config_dword(zr->pci_dev, 0xe8, 0xc0200000);
219 }
220 
lml33_init(struct zoran * zr)221 static void lml33_init(struct zoran *zr)
222 {
223 	pci_dbg(zr->pci_dev, "%s\n", __func__);
224 
225 	GPIO(zr, 2, 1);		// Set Composite input/output
226 }
227 
avs6eyes_init(struct zoran * zr)228 static void avs6eyes_init(struct zoran *zr)
229 {
230 	// AverMedia 6-Eyes original driver by Christer Weinigel
231 
232 	// Lifted straight from Christer's old driver and
233 	// modified slightly by Martin Samuelsson.
234 
235 	int mux = default_mux; /* 1 = BT866, 7 = VID1 */
236 
237 	GPIO(zr, 4, 1); /* Bt866 SLEEP on */
238 	udelay(2);
239 
240 	GPIO(zr, 0, 1); /* ZR36060 /RESET on */
241 	GPIO(zr, 1, 0); /* ZR36060 /SLEEP on */
242 	GPIO(zr, 2, mux & 1);   /* MUX S0 */
243 	GPIO(zr, 3, 0); /* /FRAME on */
244 	GPIO(zr, 4, 0); /* Bt866 SLEEP off */
245 	GPIO(zr, 5, mux & 2);   /* MUX S1 */
246 	GPIO(zr, 6, 0); /* ? */
247 	GPIO(zr, 7, mux & 4);   /* MUX S2 */
248 }
249 
codecid_to_modulename(u16 codecid)250 static const char *codecid_to_modulename(u16 codecid)
251 {
252 	const char *name = NULL;
253 
254 	switch (codecid) {
255 	case CODEC_TYPE_ZR36060:
256 		name = "zr36060";
257 		break;
258 	case CODEC_TYPE_ZR36050:
259 		name = "zr36050";
260 		break;
261 	case CODEC_TYPE_ZR36016:
262 		name = "zr36016";
263 		break;
264 	}
265 
266 	return name;
267 }
268 
269 // struct tvnorm {
270 //      u16 wt, wa, h_start, h_sync_start, ht, ha, v_start;
271 // };
272 
273 static const struct tvnorm f50sqpixel = { 944, 768, 83, 880, 625, 576, 16 };
274 static const struct tvnorm f60sqpixel = { 780, 640, 51, 716, 525, 480, 12 };
275 static const struct tvnorm f50ccir601 = { 864, 720, 75, 804, 625, 576, 18 };
276 static const struct tvnorm f60ccir601 = { 858, 720, 57, 788, 525, 480, 16 };
277 
278 static const struct tvnorm f50ccir601_lml33 = { 864, 720, 75 + 34, 804, 625, 576, 18 };
279 static const struct tvnorm f60ccir601_lml33 = { 858, 720, 57 + 34, 788, 525, 480, 16 };
280 
281 /* The DC10 (57/16/50) uses VActive as HSync, so h_start must be 0 */
282 static const struct tvnorm f50sqpixel_dc10 = { 944, 768, 0, 880, 625, 576, 0 };
283 static const struct tvnorm f60sqpixel_dc10 = { 780, 640, 0, 716, 525, 480, 12 };
284 
285 /*
286  * FIXME: I cannot swap U and V in saa7114, so i do one pixel left shift in zoran (75 -> 74)
287  * (Maxim Yevtyushkin <max@linuxmedialabs.com>)
288  */
289 static const struct tvnorm f50ccir601_lm33r10 = { 864, 720, 74 + 54, 804, 625, 576, 18 };
290 static const struct tvnorm f60ccir601_lm33r10 = { 858, 720, 56 + 54, 788, 525, 480, 16 };
291 
292 /*
293  * FIXME: The ks0127 seem incapable of swapping U and V, too, which is why I copy Maxim's left
294  * shift hack for the 6 Eyes.
295  *
296  * Christer's driver used the unshifted norms, though...
297  * /Sam
298  */
299 static const struct tvnorm f50ccir601_avs6eyes = { 864, 720, 74, 804, 625, 576, 18 };
300 static const struct tvnorm f60ccir601_avs6eyes = { 858, 720, 56, 788, 525, 480, 16 };
301 
302 static const unsigned short vpx3220_addrs[] = { 0x43, 0x47, I2C_CLIENT_END };
303 static const unsigned short saa7110_addrs[] = { 0x4e, 0x4f, I2C_CLIENT_END };
304 static const unsigned short saa7111_addrs[] = { 0x25, 0x24, I2C_CLIENT_END };
305 static const unsigned short saa7114_addrs[] = { 0x21, 0x20, I2C_CLIENT_END };
306 static const unsigned short adv717x_addrs[] = { 0x6a, 0x6b, 0x2a, 0x2b, I2C_CLIENT_END };
307 static const unsigned short ks0127_addrs[] = { 0x6c, 0x6d, I2C_CLIENT_END };
308 static const unsigned short saa7185_addrs[] = { 0x44, I2C_CLIENT_END };
309 static const unsigned short bt819_addrs[] = { 0x45, I2C_CLIENT_END };
310 static const unsigned short bt856_addrs[] = { 0x44, I2C_CLIENT_END };
311 static const unsigned short bt866_addrs[] = { 0x44, I2C_CLIENT_END };
312 
313 static struct card_info zoran_cards[NUM_CARDS] = {
314 	{
315 		.type = DC10_OLD,
316 		.name = "DC10(old)",
317 		.i2c_decoder = "vpx3220a",
318 		.addrs_decoder = vpx3220_addrs,
319 		.video_codec = CODEC_TYPE_ZR36050,
320 		.video_vfe = CODEC_TYPE_ZR36016,
321 
322 		.inputs = 3,
323 		.input = {
324 			{ 1, "Composite" },
325 			{ 2, "S-Video" },
326 			{ 0, "Internal/comp" }
327 		},
328 		.norms = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM,
329 		.tvn = {
330 			&f50sqpixel_dc10,
331 			&f60sqpixel_dc10,
332 			&f50sqpixel_dc10
333 		},
334 		.jpeg_int = 0,
335 		.vsync_int = ZR36057_ISR_GIRQ1,
336 		.gpio = { 2, 1, -1, 3, 7, 0, 4, 5 },
337 		.gpio_pol = { 0, 0, 0, 1, 0, 0, 0, 0 },
338 		.gpcs = { -1, 0 },
339 		.vfe_pol = { 0, 0, 0, 0, 0, 0, 0, 0 },
340 		.gws_not_connected = 0,
341 		.input_mux = 0,
342 		.init = &dc10_init,
343 	}, {
344 		.type = DC10_NEW,
345 		.name = "DC10(new)",
346 		.i2c_decoder = "saa7110",
347 		.addrs_decoder = saa7110_addrs,
348 		.i2c_encoder = "adv7175",
349 		.addrs_encoder = adv717x_addrs,
350 		.video_codec = CODEC_TYPE_ZR36060,
351 
352 		.inputs = 3,
353 		.input = {
354 				{ 0, "Composite" },
355 				{ 7, "S-Video" },
356 				{ 5, "Internal/comp" }
357 			},
358 		.norms = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM,
359 		.tvn = {
360 				&f50sqpixel,
361 				&f60sqpixel,
362 				&f50sqpixel},
363 		.jpeg_int = ZR36057_ISR_GIRQ0,
364 		.vsync_int = ZR36057_ISR_GIRQ1,
365 		.gpio = { 3, 0, 6, 1, 2, -1, 4, 5 },
366 		.gpio_pol = { 0, 0, 0, 0, 0, 0, 0, 0 },
367 		.gpcs = { -1, 1},
368 		.vfe_pol = { 1, 1, 1, 1, 0, 0, 0, 0 },
369 		.gws_not_connected = 0,
370 		.input_mux = 0,
371 		.init = &dc10plus_init,
372 	}, {
373 		.type = DC10_PLUS,
374 		.name = "DC10_PLUS",
375 		.i2c_decoder = "saa7110",
376 		.addrs_decoder = saa7110_addrs,
377 		.i2c_encoder = "adv7175",
378 		.addrs_encoder = adv717x_addrs,
379 		.video_codec = CODEC_TYPE_ZR36060,
380 
381 		.inputs = 3,
382 		.input = {
383 			{ 0, "Composite" },
384 			{ 7, "S-Video" },
385 			{ 5, "Internal/comp" }
386 		},
387 		.norms = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM,
388 		.tvn = {
389 			&f50sqpixel,
390 			&f60sqpixel,
391 			&f50sqpixel
392 		},
393 		.jpeg_int = ZR36057_ISR_GIRQ0,
394 		.vsync_int = ZR36057_ISR_GIRQ1,
395 		.gpio = { 3, 0, 6, 1, 2, -1, 4, 5 },
396 		.gpio_pol = { 0, 0, 0, 0, 0, 0, 0, 0 },
397 		.gpcs = { -1, 1 },
398 		.vfe_pol = { 1, 1, 1, 1, 0, 0, 0, 0 },
399 		.gws_not_connected = 0,
400 		.input_mux = 0,
401 		.init = &dc10plus_init,
402 	}, {
403 		.type = DC30,
404 		.name = "DC30",
405 		.i2c_decoder = "vpx3220a",
406 		.addrs_decoder = vpx3220_addrs,
407 		.i2c_encoder = "adv7175",
408 		.addrs_encoder = adv717x_addrs,
409 		.video_codec = CODEC_TYPE_ZR36050,
410 		.video_vfe = CODEC_TYPE_ZR36016,
411 
412 		.inputs = 3,
413 		.input = {
414 			{ 1, "Composite" },
415 			{ 2, "S-Video" },
416 			{ 0, "Internal/comp" }
417 		},
418 		.norms = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM,
419 		.tvn = {
420 			&f50sqpixel_dc10,
421 			&f60sqpixel_dc10,
422 			&f50sqpixel_dc10
423 		},
424 		.jpeg_int = 0,
425 		.vsync_int = ZR36057_ISR_GIRQ1,
426 		.gpio = { 2, 1, -1, 3, 7, 0, 4, 5 },
427 		.gpio_pol = { 0, 0, 0, 1, 0, 0, 0, 0 },
428 		.gpcs = { -1, 0 },
429 		.vfe_pol = { 0, 0, 0, 0, 0, 0, 0, 0 },
430 		.gws_not_connected = 0,
431 		.input_mux = 0,
432 		.init = &dc10_init,
433 	}, {
434 		.type = DC30_PLUS,
435 		.name = "DC30_PLUS",
436 		.i2c_decoder = "vpx3220a",
437 		.addrs_decoder = vpx3220_addrs,
438 		.i2c_encoder = "adv7175",
439 		.addrs_encoder = adv717x_addrs,
440 		.video_codec = CODEC_TYPE_ZR36050,
441 		.video_vfe = CODEC_TYPE_ZR36016,
442 
443 		.inputs = 3,
444 		.input = {
445 			{ 1, "Composite" },
446 			{ 2, "S-Video" },
447 			{ 0, "Internal/comp" }
448 		},
449 		.norms = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM,
450 		.tvn = {
451 			&f50sqpixel_dc10,
452 			&f60sqpixel_dc10,
453 			&f50sqpixel_dc10
454 		},
455 		.jpeg_int = 0,
456 		.vsync_int = ZR36057_ISR_GIRQ1,
457 		.gpio = { 2, 1, -1, 3, 7, 0, 4, 5 },
458 		.gpio_pol = { 0, 0, 0, 1, 0, 0, 0, 0 },
459 		.gpcs = { -1, 0 },
460 		.vfe_pol = { 0, 0, 0, 0, 0, 0, 0, 0 },
461 		.gws_not_connected = 0,
462 		.input_mux = 0,
463 		.init = &dc10_init,
464 	}, {
465 		.type = LML33,
466 		.name = "LML33",
467 		.i2c_decoder = "bt819a",
468 		.addrs_decoder = bt819_addrs,
469 		.i2c_encoder = "bt856",
470 		.addrs_encoder = bt856_addrs,
471 		.video_codec = CODEC_TYPE_ZR36060,
472 
473 		.inputs = 2,
474 		.input = {
475 			{ 0, "Composite" },
476 			{ 7, "S-Video" }
477 		},
478 		.norms = V4L2_STD_NTSC | V4L2_STD_PAL,
479 		.tvn = {
480 			&f50ccir601_lml33,
481 			&f60ccir601_lml33,
482 			NULL
483 		},
484 		.jpeg_int = ZR36057_ISR_GIRQ1,
485 		.vsync_int = ZR36057_ISR_GIRQ0,
486 		.gpio = { 1, -1, 3, 5, 7, -1, -1, -1 },
487 		.gpio_pol = { 0, 0, 0, 0, 1, 0, 0, 0 },
488 		.gpcs = { 3, 1 },
489 		.vfe_pol = { 1, 1, 0, 0, 0, 1, 0, 0 },
490 		.gws_not_connected = 1,
491 		.input_mux = 0,
492 		.init = &lml33_init,
493 	}, {
494 		.type = LML33R10,
495 		.name = "LML33R10",
496 		.i2c_decoder = "saa7114",
497 		.addrs_decoder = saa7114_addrs,
498 		.i2c_encoder = "adv7170",
499 		.addrs_encoder = adv717x_addrs,
500 		.video_codec = CODEC_TYPE_ZR36060,
501 
502 		.inputs = 2,
503 		.input = {
504 			{ 0, "Composite" },
505 			{ 7, "S-Video" }
506 		},
507 		.norms = V4L2_STD_NTSC | V4L2_STD_PAL,
508 		.tvn = {
509 			&f50ccir601_lm33r10,
510 			&f60ccir601_lm33r10,
511 			NULL
512 		},
513 		.jpeg_int = ZR36057_ISR_GIRQ1,
514 		.vsync_int = ZR36057_ISR_GIRQ0,
515 		.gpio = { 1, -1, 3, 5, 7, -1, -1, -1 },
516 		.gpio_pol = { 0, 0, 0, 0, 1, 0, 0, 0 },
517 		.gpcs = { 3, 1 },
518 		.vfe_pol = { 1, 1, 0, 0, 0, 1, 0, 0 },
519 		.gws_not_connected = 1,
520 		.input_mux = 0,
521 		.init = &lml33_init,
522 	}, {
523 		.type = BUZ,
524 		.name = "Buz",
525 		.i2c_decoder = "saa7111",
526 		.addrs_decoder = saa7111_addrs,
527 		.i2c_encoder = "saa7185",
528 		.addrs_encoder = saa7185_addrs,
529 		.video_codec = CODEC_TYPE_ZR36060,
530 
531 		.inputs = 2,
532 		.input = {
533 			{ 3, "Composite" },
534 			{ 7, "S-Video" }
535 		},
536 		.norms = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM,
537 		.tvn = {
538 			&f50ccir601,
539 			&f60ccir601,
540 			&f50ccir601
541 		},
542 		.jpeg_int = ZR36057_ISR_GIRQ1,
543 		.vsync_int = ZR36057_ISR_GIRQ0,
544 		.gpio = { 1, -1, 3, -1, -1, -1, -1, -1 },
545 		.gpio_pol = { 0, 0, 0, 0, 0, 0, 0, 0 },
546 		.gpcs = { 3, 1 },
547 		.vfe_pol = { 1, 1, 0, 0, 0, 1, 0, 0 },
548 		.gws_not_connected = 1,
549 		.input_mux = 0,
550 		.init = &buz_init,
551 	}, {
552 		.type = AVS6EYES,
553 		.name = "6-Eyes",
554 /* AverMedia chose not to brand the 6-Eyes. Thus it can't be autodetected, and requires card=x. */
555 		.i2c_decoder = "ks0127",
556 		.addrs_decoder = ks0127_addrs,
557 		.i2c_encoder = "bt866",
558 		.addrs_encoder = bt866_addrs,
559 		.video_codec = CODEC_TYPE_ZR36060,
560 
561 		.inputs = 10,
562 		.input = {
563 			{ 0, "Composite 1" },
564 			{ 1, "Composite 2" },
565 			{ 2, "Composite 3" },
566 			{ 4, "Composite 4" },
567 			{ 5, "Composite 5" },
568 			{ 6, "Composite 6" },
569 			{ 8, "S-Video 1" },
570 			{ 9, "S-Video 2" },
571 			{10, "S-Video 3" },
572 			{15, "YCbCr" }
573 		},
574 		.norms = V4L2_STD_NTSC | V4L2_STD_PAL,
575 		.tvn = {
576 			&f50ccir601_avs6eyes,
577 			&f60ccir601_avs6eyes,
578 			NULL
579 		},
580 		.jpeg_int = ZR36057_ISR_GIRQ1,
581 		.vsync_int = ZR36057_ISR_GIRQ0,
582 		.gpio = { 1, 0, 3, -1, -1, -1, -1, -1 },// Validity unknown /Sam
583 		.gpio_pol = { 0, 0, 0, 0, 0, 0, 0, 0 }, // Validity unknown /Sam
584 		.gpcs = { 3, 1 },			// Validity unknown /Sam
585 		.vfe_pol = { 1, 0, 0, 0, 0, 1, 0, 0 },  // Validity unknown /Sam
586 		.gws_not_connected = 1,
587 		.input_mux = 1,
588 		.init = &avs6eyes_init,
589 	}
590 
591 };
592 
593 /*
594  * I2C functions
595  */
596 /* software I2C functions */
zoran_i2c_getsda(void * data)597 static int zoran_i2c_getsda(void *data)
598 {
599 	struct zoran *zr = (struct zoran *)data;
600 
601 	return (btread(ZR36057_I2CBR) >> 1) & 1;
602 }
603 
zoran_i2c_getscl(void * data)604 static int zoran_i2c_getscl(void *data)
605 {
606 	struct zoran *zr = (struct zoran *)data;
607 
608 	return btread(ZR36057_I2CBR) & 1;
609 }
610 
zoran_i2c_setsda(void * data,int state)611 static void zoran_i2c_setsda(void *data, int state)
612 {
613 	struct zoran *zr = (struct zoran *)data;
614 
615 	if (state)
616 		zr->i2cbr |= 2;
617 	else
618 		zr->i2cbr &= ~2;
619 	btwrite(zr->i2cbr, ZR36057_I2CBR);
620 }
621 
zoran_i2c_setscl(void * data,int state)622 static void zoran_i2c_setscl(void *data, int state)
623 {
624 	struct zoran *zr = (struct zoran *)data;
625 
626 	if (state)
627 		zr->i2cbr |= 1;
628 	else
629 		zr->i2cbr &= ~1;
630 	btwrite(zr->i2cbr, ZR36057_I2CBR);
631 }
632 
633 static const struct i2c_algo_bit_data zoran_i2c_bit_data_template = {
634 	.setsda = zoran_i2c_setsda,
635 	.setscl = zoran_i2c_setscl,
636 	.getsda = zoran_i2c_getsda,
637 	.getscl = zoran_i2c_getscl,
638 	.udelay = 10,
639 	.timeout = 100,
640 };
641 
zoran_register_i2c(struct zoran * zr)642 static int zoran_register_i2c(struct zoran *zr)
643 {
644 	zr->i2c_algo = zoran_i2c_bit_data_template;
645 	zr->i2c_algo.data = zr;
646 	strscpy(zr->i2c_adapter.name, ZR_DEVNAME(zr),
647 		sizeof(zr->i2c_adapter.name));
648 	i2c_set_adapdata(&zr->i2c_adapter, &zr->v4l2_dev);
649 	zr->i2c_adapter.algo_data = &zr->i2c_algo;
650 	zr->i2c_adapter.dev.parent = &zr->pci_dev->dev;
651 	return i2c_bit_add_bus(&zr->i2c_adapter);
652 }
653 
zoran_unregister_i2c(struct zoran * zr)654 static void zoran_unregister_i2c(struct zoran *zr)
655 {
656 	i2c_del_adapter(&zr->i2c_adapter);
657 }
658 
659 /* Check a zoran_params struct for correctness, insert default params */
zoran_check_jpg_settings(struct zoran * zr,struct zoran_jpg_settings * settings,int try)660 int zoran_check_jpg_settings(struct zoran *zr,
661 			     struct zoran_jpg_settings *settings, int try)
662 {
663 	int err = 0, err0 = 0;
664 
665 	pci_dbg(zr->pci_dev, "%s - dec: %d, Hdcm: %d, Vdcm: %d, Tdcm: %d\n",
666 		__func__, settings->decimation, settings->hor_dcm,
667 		settings->ver_dcm, settings->tmp_dcm);
668 	pci_dbg(zr->pci_dev, "%s - x: %d, y: %d, w: %d, y: %d\n", __func__,
669 		settings->img_x, settings->img_y,
670 		settings->img_width, settings->img_height);
671 	/* Check decimation, set default values for decimation = 1, 2, 4 */
672 	switch (settings->decimation) {
673 	case 1:
674 
675 		settings->hor_dcm = 1;
676 		settings->ver_dcm = 1;
677 		settings->tmp_dcm = 1;
678 		settings->field_per_buff = 2;
679 		settings->img_x = 0;
680 		settings->img_y = 0;
681 		settings->img_width = BUZ_MAX_WIDTH;
682 		settings->img_height = BUZ_MAX_HEIGHT / 2;
683 		break;
684 	case 2:
685 
686 		settings->hor_dcm = 2;
687 		settings->ver_dcm = 1;
688 		settings->tmp_dcm = 2;
689 		settings->field_per_buff = 1;
690 		settings->img_x = (BUZ_MAX_WIDTH == 720) ? 8 : 0;
691 		settings->img_y = 0;
692 		settings->img_width =
693 		    (BUZ_MAX_WIDTH == 720) ? 704 : BUZ_MAX_WIDTH;
694 		settings->img_height = BUZ_MAX_HEIGHT / 2;
695 		break;
696 	case 4:
697 
698 		if (zr->card.type == DC10_NEW) {
699 			pci_dbg(zr->pci_dev, "%s - HDec by 4 is not supported on the DC10\n", __func__);
700 			err0++;
701 			break;
702 		}
703 
704 		settings->hor_dcm = 4;
705 		settings->ver_dcm = 2;
706 		settings->tmp_dcm = 2;
707 		settings->field_per_buff = 1;
708 		settings->img_x = (BUZ_MAX_WIDTH == 720) ? 8 : 0;
709 		settings->img_y = 0;
710 		settings->img_width =
711 		    (BUZ_MAX_WIDTH == 720) ? 704 : BUZ_MAX_WIDTH;
712 		settings->img_height = BUZ_MAX_HEIGHT / 2;
713 		break;
714 	case 0:
715 
716 		/* We have to check the data the user has set */
717 
718 		if (settings->hor_dcm != 1 && settings->hor_dcm != 2 &&
719 		    (zr->card.type == DC10_NEW || settings->hor_dcm != 4)) {
720 			settings->hor_dcm = clamp(settings->hor_dcm, 1, 2);
721 			err0++;
722 		}
723 		if (settings->ver_dcm != 1 && settings->ver_dcm != 2) {
724 			settings->ver_dcm = clamp(settings->ver_dcm, 1, 2);
725 			err0++;
726 		}
727 		if (settings->tmp_dcm != 1 && settings->tmp_dcm != 2) {
728 			settings->tmp_dcm = clamp(settings->tmp_dcm, 1, 2);
729 			err0++;
730 		}
731 		if (settings->field_per_buff != 1 &&
732 		    settings->field_per_buff != 2) {
733 			settings->field_per_buff = clamp(settings->field_per_buff, 1, 2);
734 			err0++;
735 		}
736 		if (settings->img_x < 0) {
737 			settings->img_x = 0;
738 			err0++;
739 		}
740 		if (settings->img_y < 0) {
741 			settings->img_y = 0;
742 			err0++;
743 		}
744 		if (settings->img_width < 0 || settings->img_width > BUZ_MAX_WIDTH) {
745 			settings->img_width = clamp(settings->img_width, 0, (int)BUZ_MAX_WIDTH);
746 			err0++;
747 		}
748 		if (settings->img_height < 0 || settings->img_height > BUZ_MAX_HEIGHT / 2) {
749 			settings->img_height = clamp(settings->img_height, 0, BUZ_MAX_HEIGHT / 2);
750 			err0++;
751 		}
752 		if (settings->img_x + settings->img_width > BUZ_MAX_WIDTH) {
753 			settings->img_x = BUZ_MAX_WIDTH - settings->img_width;
754 			err0++;
755 		}
756 		if (settings->img_y + settings->img_height > BUZ_MAX_HEIGHT / 2) {
757 			settings->img_y = BUZ_MAX_HEIGHT / 2 - settings->img_height;
758 			err0++;
759 		}
760 		if (settings->img_width % (16 * settings->hor_dcm) != 0) {
761 			settings->img_width -= settings->img_width % (16 * settings->hor_dcm);
762 			if (settings->img_width == 0)
763 				settings->img_width = 16 * settings->hor_dcm;
764 			err0++;
765 		}
766 		if (settings->img_height % (8 * settings->ver_dcm) != 0) {
767 			settings->img_height -= settings->img_height % (8 * settings->ver_dcm);
768 			if (settings->img_height == 0)
769 				settings->img_height = 8 * settings->ver_dcm;
770 			err0++;
771 		}
772 
773 		if (!try && err0) {
774 			pci_err(zr->pci_dev, "%s - error in params for decimation = 0\n", __func__);
775 			err++;
776 		}
777 		break;
778 	default:
779 		pci_err(zr->pci_dev, "%s - decimation = %d, must be 0, 1, 2 or 4\n",
780 			__func__, settings->decimation);
781 		err++;
782 		break;
783 	}
784 
785 	if (settings->jpg_comp.quality > 100)
786 		settings->jpg_comp.quality = 100;
787 	if (settings->jpg_comp.quality < 5)
788 		settings->jpg_comp.quality = 5;
789 	if (settings->jpg_comp.APPn < 0)
790 		settings->jpg_comp.APPn = 0;
791 	if (settings->jpg_comp.APPn > 15)
792 		settings->jpg_comp.APPn = 15;
793 	if (settings->jpg_comp.APP_len < 0)
794 		settings->jpg_comp.APP_len = 0;
795 	if (settings->jpg_comp.APP_len > 60)
796 		settings->jpg_comp.APP_len = 60;
797 	if (settings->jpg_comp.COM_len < 0)
798 		settings->jpg_comp.COM_len = 0;
799 	if (settings->jpg_comp.COM_len > 60)
800 		settings->jpg_comp.COM_len = 60;
801 	if (err)
802 		return -EINVAL;
803 	return 0;
804 }
805 
zoran_open_init_params(struct zoran * zr)806 void zoran_open_init_params(struct zoran *zr)
807 {
808 	int i;
809 
810 	zr->v4l_settings.width = 192;
811 	zr->v4l_settings.height = 144;
812 	zr->v4l_settings.format = &zoran_formats[7];	/* YUY2 - YUV-4:2:2 packed */
813 	zr->v4l_settings.bytesperline = zr->v4l_settings.width *
814 		((zr->v4l_settings.format->depth + 7) / 8);
815 
816 	/* Set necessary params and call zoran_check_jpg_settings to set the defaults */
817 	zr->jpg_settings.decimation = 1;
818 	zr->jpg_settings.jpg_comp.quality = 50;	/* default compression factor 8 */
819 	if (zr->card.type != BUZ)
820 		zr->jpg_settings.odd_even = 1;
821 	else
822 		zr->jpg_settings.odd_even = 0;
823 	zr->jpg_settings.jpg_comp.APPn = 0;
824 	zr->jpg_settings.jpg_comp.APP_len = 0;	/* No APPn marker */
825 	memset(zr->jpg_settings.jpg_comp.APP_data, 0,
826 	       sizeof(zr->jpg_settings.jpg_comp.APP_data));
827 	zr->jpg_settings.jpg_comp.COM_len = 0;	/* No COM marker */
828 	memset(zr->jpg_settings.jpg_comp.COM_data, 0,
829 	       sizeof(zr->jpg_settings.jpg_comp.COM_data));
830 	zr->jpg_settings.jpg_comp.jpeg_markers =
831 	    V4L2_JPEG_MARKER_DHT | V4L2_JPEG_MARKER_DQT;
832 	i = zoran_check_jpg_settings(zr, &zr->jpg_settings, 0);
833 	if (i)
834 		pci_err(zr->pci_dev, "%s internal error\n", __func__);
835 
836 	zr->buffer_size = zr->v4l_settings.bytesperline * zr->v4l_settings.height;
837 
838 	clear_interrupt_counters(zr);
839 }
840 
zr36057_init(struct zoran * zr)841 static int zr36057_init(struct zoran *zr)
842 {
843 	int j, err;
844 
845 	pci_info(zr->pci_dev, "initializing card[%d]\n", zr->id);
846 
847 	/* Avoid nonsense settings from user for default input/norm */
848 	if (default_norm < 0 || default_norm > 2)
849 		default_norm = 0;
850 	if (default_norm == 0) {
851 		zr->norm = V4L2_STD_PAL;
852 		zr->timing = zr->card.tvn[ZR_NORM_PAL];
853 	} else if (default_norm == 1) {
854 		zr->norm = V4L2_STD_NTSC;
855 		zr->timing = zr->card.tvn[ZR_NORM_NTSC];
856 	} else {
857 		zr->norm = V4L2_STD_SECAM;
858 		zr->timing = zr->card.tvn[ZR_NORM_SECAM];
859 	}
860 	if (!zr->timing) {
861 		pci_warn(zr->pci_dev, "%s - default TV standard not supported by hardware. PAL will be used.\n", __func__);
862 		zr->norm = V4L2_STD_PAL;
863 		zr->timing = zr->card.tvn[ZR_NORM_PAL];
864 	}
865 
866 	if (default_input > zr->card.inputs - 1) {
867 		pci_warn(zr->pci_dev, "default_input value %d out of range (0-%d)\n",
868 			 default_input, zr->card.inputs - 1);
869 		default_input = 0;
870 	}
871 	zr->input = default_input;
872 
873 	/* default setup (will be repeated at every open) */
874 	zoran_open_init_params(zr);
875 
876 	/* allocate memory *before* doing anything to the hardware in case allocation fails */
877 	zr->video_dev = video_device_alloc();
878 	if (!zr->video_dev) {
879 		err = -ENOMEM;
880 		goto exit;
881 	}
882 	zr->stat_com = dma_alloc_coherent(&zr->pci_dev->dev,
883 					  BUZ_NUM_STAT_COM * sizeof(u32),
884 					  &zr->p_sc, GFP_KERNEL);
885 	if (!zr->stat_com) {
886 		err = -ENOMEM;
887 		goto exit_video;
888 	}
889 	for (j = 0; j < BUZ_NUM_STAT_COM; j++)
890 		zr->stat_com[j] = cpu_to_le32(1); /* mark as unavailable to zr36057 */
891 
892 	zr->stat_comb = dma_alloc_coherent(&zr->pci_dev->dev,
893 					   BUZ_NUM_STAT_COM * sizeof(u32) * 2,
894 					   &zr->p_scb, GFP_KERNEL);
895 	if (!zr->stat_comb) {
896 		err = -ENOMEM;
897 		goto exit_statcom;
898 	}
899 
900 	/* Now add the template and register the device unit. */
901 	*zr->video_dev = zoran_template;
902 	zr->video_dev->v4l2_dev = &zr->v4l2_dev;
903 	zr->video_dev->lock = &zr->lock;
904 	zr->video_dev->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_CAPTURE;
905 
906 	strscpy(zr->video_dev->name, ZR_DEVNAME(zr), sizeof(zr->video_dev->name));
907 	/*
908 	 * It's not a mem2mem device, but you can both capture and output from one and the same
909 	 * device. This should really be split up into two device nodes, but that's a job for
910 	 * another day.
911 	 */
912 	zr->video_dev->vfl_dir = VFL_DIR_M2M;
913 
914 	zoran_queue_init(zr, &zr->vq);
915 
916 	err = video_register_device(zr->video_dev, VFL_TYPE_VIDEO, video_nr[zr->id]);
917 	if (err < 0)
918 		goto exit_statcomb;
919 	video_set_drvdata(zr->video_dev, zr);
920 
921 	zoran_init_hardware(zr);
922 	if (!pass_through) {
923 		decoder_call(zr, video, s_stream, 0);
924 		encoder_call(zr, video, s_routing, 2, 0, 0);
925 	}
926 
927 	zr->initialized = 1;
928 	return 0;
929 
930 exit_statcomb:
931 	dma_free_coherent(&zr->pci_dev->dev, BUZ_NUM_STAT_COM * sizeof(u32) * 2, zr->stat_comb, zr->p_scb);
932 exit_statcom:
933 	dma_free_coherent(&zr->pci_dev->dev, BUZ_NUM_STAT_COM * sizeof(u32), zr->stat_com, zr->p_sc);
934 exit_video:
935 	kfree(zr->video_dev);
936 exit:
937 	return err;
938 }
939 
zoran_remove(struct pci_dev * pdev)940 static void zoran_remove(struct pci_dev *pdev)
941 {
942 	struct v4l2_device *v4l2_dev = dev_get_drvdata(&pdev->dev);
943 	struct zoran *zr = to_zoran(v4l2_dev);
944 
945 	if (!zr->initialized)
946 		goto exit_free;
947 
948 	zoran_queue_exit(zr);
949 
950 	/* unregister videocodec bus */
951 	if (zr->codec)
952 		videocodec_detach(zr->codec);
953 	if (zr->vfe)
954 		videocodec_detach(zr->vfe);
955 
956 	/* unregister i2c bus */
957 	zoran_unregister_i2c(zr);
958 	/* disable PCI bus-mastering */
959 	zoran_set_pci_master(zr, 0);
960 	/* put chip into reset */
961 	btwrite(0, ZR36057_SPGPPCR);
962 	pci_free_irq(zr->pci_dev, 0, zr);
963 	/* unmap and free memory */
964 	dma_free_coherent(&zr->pci_dev->dev, BUZ_NUM_STAT_COM * sizeof(u32), zr->stat_com, zr->p_sc);
965 	dma_free_coherent(&zr->pci_dev->dev, BUZ_NUM_STAT_COM * sizeof(u32) * 2, zr->stat_comb, zr->p_scb);
966 	pci_release_regions(pdev);
967 	pci_disable_device(zr->pci_dev);
968 	video_unregister_device(zr->video_dev);
969 exit_free:
970 	v4l2_ctrl_handler_free(&zr->hdl);
971 	v4l2_device_unregister(&zr->v4l2_dev);
972 }
973 
zoran_vdev_release(struct video_device * vdev)974 void zoran_vdev_release(struct video_device *vdev)
975 {
976 	kfree(vdev);
977 }
978 
zoran_setup_videocodec(struct zoran * zr,int type)979 static struct videocodec_master *zoran_setup_videocodec(struct zoran *zr,
980 							int type)
981 {
982 	struct videocodec_master *m = NULL;
983 
984 	m = devm_kmalloc(&zr->pci_dev->dev, sizeof(*m), GFP_KERNEL);
985 	if (!m)
986 		return m;
987 
988 	/*
989 	 * magic and type are unused for master struct. Makes sense only at codec structs.
990 	 * In the past, .type were initialized to the old V4L1 .hardware value,
991 	 * as VID_HARDWARE_ZR36067
992 	 */
993 	m->magic = 0L;
994 	m->type = 0;
995 
996 	m->flags = CODEC_FLAG_ENCODER | CODEC_FLAG_DECODER;
997 	strscpy(m->name, ZR_DEVNAME(zr), sizeof(m->name));
998 	m->data = zr;
999 
1000 	switch (type) {
1001 	case CODEC_TYPE_ZR36060:
1002 		m->readreg = zr36060_read;
1003 		m->writereg = zr36060_write;
1004 		m->flags |= CODEC_FLAG_JPEG | CODEC_FLAG_VFE;
1005 		break;
1006 	case CODEC_TYPE_ZR36050:
1007 		m->readreg = zr36050_read;
1008 		m->writereg = zr36050_write;
1009 		m->flags |= CODEC_FLAG_JPEG;
1010 		break;
1011 	case CODEC_TYPE_ZR36016:
1012 		m->readreg = zr36016_read;
1013 		m->writereg = zr36016_write;
1014 		m->flags |= CODEC_FLAG_VFE;
1015 		break;
1016 	}
1017 
1018 	return m;
1019 }
1020 
zoran_subdev_notify(struct v4l2_subdev * sd,unsigned int cmd,void * arg)1021 static void zoran_subdev_notify(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
1022 {
1023 	struct zoran *zr = to_zoran(sd->v4l2_dev);
1024 
1025 	/*
1026 	 * Bt819 needs to reset its FIFO buffer using #FRST pin and
1027 	 * LML33 card uses GPIO(7) for that.
1028 	 */
1029 	if (cmd == BT819_FIFO_RESET_LOW)
1030 		GPIO(zr, 7, 0);
1031 	else if (cmd == BT819_FIFO_RESET_HIGH)
1032 		GPIO(zr, 7, 1);
1033 }
1034 
zoran_video_set_ctrl(struct v4l2_ctrl * ctrl)1035 static int zoran_video_set_ctrl(struct v4l2_ctrl *ctrl)
1036 {
1037 	struct zoran *zr = container_of(ctrl->handler, struct zoran, hdl);
1038 
1039 	switch (ctrl->id) {
1040 	case V4L2_CID_JPEG_COMPRESSION_QUALITY:
1041 		zr->jpg_settings.jpg_comp.quality = ctrl->val;
1042 		return zoran_check_jpg_settings(zr, &zr->jpg_settings, 0);
1043 	default:
1044 		return -EINVAL;
1045 	}
1046 
1047 	return 0;
1048 }
1049 
1050 static const struct v4l2_ctrl_ops zoran_video_ctrl_ops = {
1051 	.s_ctrl = zoran_video_set_ctrl,
1052 };
1053 
1054 /*
1055  *   Scan for a Buz card (actually for the PCI controller ZR36057),
1056  *   request the irq and map the io memory
1057  */
zoran_probe(struct pci_dev * pdev,const struct pci_device_id * ent)1058 static int zoran_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1059 {
1060 	unsigned char latency, need_latency;
1061 	struct zoran *zr;
1062 	int result;
1063 	struct videocodec_master *master_vfe = NULL;
1064 	struct videocodec_master *master_codec = NULL;
1065 	int card_num;
1066 	const char *codec_name, *vfe_name;
1067 	unsigned int nr;
1068 	int err;
1069 
1070 	err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
1071 	if (err)
1072 		return -ENODEV;
1073 	vb2_dma_contig_set_max_seg_size(&pdev->dev, DMA_BIT_MASK(32));
1074 
1075 	nr = zoran_num++;
1076 	if (nr >= BUZ_MAX) {
1077 		pci_err(pdev, "driver limited to %d card(s) maximum\n", BUZ_MAX);
1078 		return -ENOENT;
1079 	}
1080 
1081 	zr = devm_kzalloc(&pdev->dev, sizeof(*zr), GFP_KERNEL);
1082 	if (!zr)
1083 		return -ENOMEM;
1084 
1085 	zr->v4l2_dev.notify = zoran_subdev_notify;
1086 	if (v4l2_device_register(&pdev->dev, &zr->v4l2_dev))
1087 		goto zr_free_mem;
1088 	zr->pci_dev = pdev;
1089 	zr->id = nr;
1090 	snprintf(ZR_DEVNAME(zr), sizeof(ZR_DEVNAME(zr)), "MJPEG[%u]", zr->id);
1091 	if (v4l2_ctrl_handler_init(&zr->hdl, 10))
1092 		goto zr_unreg;
1093 	zr->v4l2_dev.ctrl_handler = &zr->hdl;
1094 	v4l2_ctrl_new_std(&zr->hdl, &zoran_video_ctrl_ops,
1095 			  V4L2_CID_JPEG_COMPRESSION_QUALITY, 0,
1096 			  100, 1, 50);
1097 	spin_lock_init(&zr->spinlock);
1098 	mutex_init(&zr->lock);
1099 	if (pci_enable_device(pdev))
1100 		goto zr_unreg;
1101 	zr->revision = zr->pci_dev->revision;
1102 
1103 	pci_info(zr->pci_dev, "Zoran ZR360%c7 (rev %d), irq: %d, memory: 0x%08llx\n",
1104 		 zr->revision < 2 ? '5' : '6', zr->revision,
1105 		 zr->pci_dev->irq, (uint64_t)pci_resource_start(zr->pci_dev, 0));
1106 	if (zr->revision >= 2)
1107 		pci_info(zr->pci_dev, "Subsystem vendor=0x%04x id=0x%04x\n",
1108 			 zr->pci_dev->subsystem_vendor, zr->pci_dev->subsystem_device);
1109 
1110 	/* Use auto-detected card type? */
1111 	if (card[nr] == -1) {
1112 		if (zr->revision < 2) {
1113 			pci_err(pdev, "No card type specified, please use the card=X module parameter\n");
1114 			pci_err(pdev, "It is not possible to auto-detect ZR36057 based cards\n");
1115 			goto zr_unreg;
1116 		}
1117 
1118 		card_num = ent->driver_data;
1119 		if (card_num >= NUM_CARDS) {
1120 			pci_err(pdev, "Unknown card, try specifying card=X module parameter\n");
1121 			goto zr_unreg;
1122 		}
1123 		pci_info(zr->pci_dev, "%s() - card %s detected\n", __func__, zoran_cards[card_num].name);
1124 	} else {
1125 		card_num = card[nr];
1126 		if (card_num >= NUM_CARDS || card_num < 0) {
1127 			pci_err(pdev, "User specified card type %d out of range (0 .. %d)\n",
1128 				card_num, NUM_CARDS - 1);
1129 			goto zr_unreg;
1130 		}
1131 	}
1132 
1133 	/*
1134 	 * even though we make this a non pointer and thus
1135 	 * theoretically allow for making changes to this struct
1136 	 * on a per-individual card basis at runtime, this is
1137 	 * strongly discouraged. This structure is intended to
1138 	 * keep general card information, no settings or anything
1139 	 */
1140 	zr->card = zoran_cards[card_num];
1141 	snprintf(ZR_DEVNAME(zr), sizeof(ZR_DEVNAME(zr)), "%s[%u]",
1142 		 zr->card.name, zr->id);
1143 
1144 	err = pci_request_regions(pdev, ZR_DEVNAME(zr));
1145 	if (err)
1146 		goto zr_unreg;
1147 
1148 	zr->zr36057_mem = devm_ioremap(&pdev->dev, pci_resource_start(pdev, 0), pci_resource_len(pdev, 0));
1149 	if (!zr->zr36057_mem) {
1150 		pci_err(pdev, "%s() - ioremap failed\n", __func__);
1151 		goto zr_pci_release;
1152 	}
1153 
1154 	result = pci_request_irq(pdev, 0, zoran_irq, NULL, zr, ZR_DEVNAME(zr));
1155 	if (result < 0) {
1156 		if (result == -EINVAL) {
1157 			pci_err(pdev, "%s - bad IRQ number or handler\n", __func__);
1158 		} else if (result == -EBUSY) {
1159 			pci_err(pdev, "%s - IRQ %d busy, change your PnP config in BIOS\n",
1160 				__func__, zr->pci_dev->irq);
1161 		} else {
1162 			pci_err(pdev, "%s - cannot assign IRQ, error code %d\n", __func__, result);
1163 		}
1164 		goto zr_pci_release;
1165 	}
1166 
1167 	/* set PCI latency timer */
1168 	pci_read_config_byte(zr->pci_dev, PCI_LATENCY_TIMER,
1169 			     &latency);
1170 	need_latency = zr->revision > 1 ? 32 : 48;
1171 	if (latency != need_latency) {
1172 		pci_info(zr->pci_dev, "Changing PCI latency from %d to %d\n", latency, need_latency);
1173 		pci_write_config_byte(zr->pci_dev, PCI_LATENCY_TIMER, need_latency);
1174 	}
1175 
1176 	zr36057_restart(zr);
1177 	/* i2c */
1178 	pci_info(zr->pci_dev, "Initializing i2c bus...\n");
1179 
1180 	if (zoran_register_i2c(zr) < 0) {
1181 		pci_err(pdev, "%s - can't initialize i2c bus\n", __func__);
1182 		goto zr_free_irq;
1183 	}
1184 
1185 	zr->decoder = v4l2_i2c_new_subdev(&zr->v4l2_dev, &zr->i2c_adapter,
1186 					  zr->card.i2c_decoder, 0,
1187 					  zr->card.addrs_decoder);
1188 
1189 	if (zr->card.i2c_encoder)
1190 		zr->encoder = v4l2_i2c_new_subdev(&zr->v4l2_dev, &zr->i2c_adapter,
1191 						  zr->card.i2c_encoder, 0,
1192 						  zr->card.addrs_encoder);
1193 
1194 	pci_info(zr->pci_dev, "Initializing videocodec bus...\n");
1195 
1196 	if (zr->card.video_codec) {
1197 		codec_name = codecid_to_modulename(zr->card.video_codec);
1198 		if (codec_name) {
1199 			result = request_module(codec_name);
1200 			if (result)
1201 				pci_err(pdev, "failed to load modules %s: %d\n", codec_name, result);
1202 		}
1203 	}
1204 	if (zr->card.video_vfe) {
1205 		vfe_name = codecid_to_modulename(zr->card.video_vfe);
1206 		if (vfe_name) {
1207 			result = request_module(vfe_name);
1208 			if (result < 0)
1209 				pci_err(pdev, "failed to load modules %s: %d\n", vfe_name, result);
1210 		}
1211 	}
1212 
1213 	/* reset JPEG codec */
1214 	jpeg_codec_sleep(zr, 1);
1215 	jpeg_codec_reset(zr);
1216 	/* video bus enabled */
1217 	/* display codec revision */
1218 	if (zr->card.video_codec != 0) {
1219 		master_codec = zoran_setup_videocodec(zr, zr->card.video_codec);
1220 		if (!master_codec)
1221 			goto zr_unreg_i2c;
1222 		zr->codec = videocodec_attach(master_codec);
1223 		if (!zr->codec) {
1224 			pci_err(pdev, "%s - no codec found\n", __func__);
1225 			goto zr_unreg_i2c;
1226 		}
1227 		if (zr->codec->type != zr->card.video_codec) {
1228 			pci_err(pdev, "%s - wrong codec\n", __func__);
1229 			goto zr_detach_codec;
1230 		}
1231 	}
1232 	if (zr->card.video_vfe != 0) {
1233 		master_vfe = zoran_setup_videocodec(zr, zr->card.video_vfe);
1234 		if (!master_vfe)
1235 			goto zr_detach_codec;
1236 		zr->vfe = videocodec_attach(master_vfe);
1237 		if (!zr->vfe) {
1238 			pci_err(pdev, "%s - no VFE found\n", __func__);
1239 			goto zr_detach_codec;
1240 		}
1241 		if (zr->vfe->type != zr->card.video_vfe) {
1242 			pci_err(pdev, "%s = wrong VFE\n", __func__);
1243 			goto zr_detach_vfe;
1244 		}
1245 	}
1246 
1247 	/* take care of Natoma chipset and a revision 1 zr36057 */
1248 	if ((pci_pci_problems & PCIPCI_NATOMA) && zr->revision <= 1)
1249 		pci_info(zr->pci_dev, "ZR36057/Natoma bug, max. buffer size is 128K\n");
1250 
1251 	if (zr36057_init(zr) < 0)
1252 		goto zr_detach_vfe;
1253 
1254 	zr->map_mode = ZORAN_MAP_MODE_RAW;
1255 
1256 	return 0;
1257 
1258 zr_detach_vfe:
1259 	videocodec_detach(zr->vfe);
1260 zr_detach_codec:
1261 	videocodec_detach(zr->codec);
1262 zr_unreg_i2c:
1263 	zoran_unregister_i2c(zr);
1264 zr_free_irq:
1265 	btwrite(0, ZR36057_SPGPPCR);
1266 	pci_free_irq(zr->pci_dev, 0, zr);
1267 zr_pci_release:
1268 	pci_release_regions(pdev);
1269 zr_unreg:
1270 	v4l2_ctrl_handler_free(&zr->hdl);
1271 	v4l2_device_unregister(&zr->v4l2_dev);
1272 zr_free_mem:
1273 
1274 	return -ENODEV;
1275 }
1276 
1277 static struct pci_driver zoran_driver = {
1278 	.name = "zr36067",
1279 	.id_table = zr36067_pci_tbl,
1280 	.probe = zoran_probe,
1281 	.remove = zoran_remove,
1282 };
1283 
zoran_init(void)1284 static int __init zoran_init(void)
1285 {
1286 	int res;
1287 
1288 	pr_info("Zoran MJPEG board driver version %s\n", ZORAN_VERSION);
1289 
1290 	/* check the parameters we have been given, adjust if necessary */
1291 	if (v4l_nbufs < 2)
1292 		v4l_nbufs = 2;
1293 	if (v4l_nbufs > VIDEO_MAX_FRAME)
1294 		v4l_nbufs = VIDEO_MAX_FRAME;
1295 	/* The user specifies the in KB, we want them in byte (and page aligned) */
1296 	v4l_bufsize = PAGE_ALIGN(v4l_bufsize * 1024);
1297 	if (v4l_bufsize < 32768)
1298 		v4l_bufsize = 32768;
1299 	/* 2 MB is arbitrary but sufficient for the maximum possible images */
1300 	if (v4l_bufsize > 2048 * 1024)
1301 		v4l_bufsize = 2048 * 1024;
1302 	if (jpg_nbufs < 4)
1303 		jpg_nbufs = 4;
1304 	if (jpg_nbufs > BUZ_MAX_FRAME)
1305 		jpg_nbufs = BUZ_MAX_FRAME;
1306 	jpg_bufsize = PAGE_ALIGN(jpg_bufsize * 1024);
1307 	if (jpg_bufsize < 8192)
1308 		jpg_bufsize = 8192;
1309 	if (jpg_bufsize > (512 * 1024))
1310 		jpg_bufsize = 512 * 1024;
1311 	/* Use parameter for vidmem or try to find a video card */
1312 	if (vidmem)
1313 		pr_info("%s: Using supplied video memory base address @ 0x%lx\n", ZORAN_NAME, vidmem);
1314 
1315 	/* some mainboards might not do PCI-PCI data transfer well */
1316 	if (pci_pci_problems & (PCIPCI_FAIL | PCIAGP_FAIL | PCIPCI_ALIMAGIK))
1317 		pr_warn("%s: chipset does not support reliable PCI-PCI DMA\n", ZORAN_NAME);
1318 
1319 	res = pci_register_driver(&zoran_driver);
1320 	if (res) {
1321 		pr_err("Unable to register ZR36057 driver\n");
1322 		return res;
1323 	}
1324 
1325 	return 0;
1326 }
1327 
zoran_exit(void)1328 static void __exit zoran_exit(void)
1329 {
1330 	pci_unregister_driver(&zoran_driver);
1331 }
1332 
1333 module_init(zoran_init);
1334 module_exit(zoran_exit);
1335