1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * Copyright (C) 2005-2006 Micronas USA Inc.
4  */
5 
6 #include "saa7134.h"
7 #include "saa7134-reg.h"
8 
9 #include <linux/module.h>
10 #include <linux/kernel.h>
11 #include <linux/init.h>
12 #include <linux/spinlock.h>
13 #include <linux/wait.h>
14 #include <linux/list.h>
15 #include <linux/slab.h>
16 #include <linux/time.h>
17 #include <linux/mm.h>
18 #include <linux/usb.h>
19 #include <linux/i2c.h>
20 #include <asm/byteorder.h>
21 #include <media/v4l2-common.h>
22 #include <media/v4l2-device.h>
23 #include <media/v4l2-subdev.h>
24 
25 #include "go7007-priv.h"
26 
27 /*#define GO7007_HPI_DEBUG*/
28 
29 enum hpi_address {
30 	HPI_ADDR_VIDEO_BUFFER = 0xe4,
31 	HPI_ADDR_INIT_BUFFER = 0xea,
32 	HPI_ADDR_INTR_RET_VALUE = 0xee,
33 	HPI_ADDR_INTR_RET_DATA = 0xec,
34 	HPI_ADDR_INTR_STATUS = 0xf4,
35 	HPI_ADDR_INTR_WR_PARAM = 0xf6,
36 	HPI_ADDR_INTR_WR_INDEX = 0xf8,
37 };
38 
39 enum gpio_command {
40 	GPIO_COMMAND_RESET = 0x00, /* 000b */
41 	GPIO_COMMAND_REQ1  = 0x04, /* 001b */
42 	GPIO_COMMAND_WRITE = 0x20, /* 010b */
43 	GPIO_COMMAND_REQ2  = 0x24, /* 011b */
44 	GPIO_COMMAND_READ  = 0x80, /* 100b */
45 	GPIO_COMMAND_VIDEO = 0x84, /* 101b */
46 	GPIO_COMMAND_IDLE  = 0xA0, /* 110b */
47 	GPIO_COMMAND_ADDR  = 0xA4, /* 111b */
48 };
49 
50 struct saa7134_go7007 {
51 	struct v4l2_subdev sd;
52 	struct saa7134_dev *dev;
53 	u8 *top;
54 	u8 *bottom;
55 	dma_addr_t top_dma;
56 	dma_addr_t bottom_dma;
57 };
58 
59 static const struct go7007_board_info board_voyager = {
60 	.flags		 = 0,
61 	.sensor_flags	 = GO7007_SENSOR_656 |
62 				GO7007_SENSOR_VALID_ENABLE |
63 				GO7007_SENSOR_TV |
64 				GO7007_SENSOR_VBI,
65 	.audio_flags	= GO7007_AUDIO_I2S_MODE_1 |
66 				GO7007_AUDIO_WORD_16,
67 	.audio_rate	 = 48000,
68 	.audio_bclk_div	 = 8,
69 	.audio_main_div	 = 2,
70 	.hpi_buffer_cap  = 7,
71 	.num_inputs	 = 1,
72 	.inputs		 = {
73 		{
74 			.name		= "SAA7134",
75 		},
76 	},
77 };
78 
79 /********************* Driver for GPIO HPI interface *********************/
80 
gpio_write(struct saa7134_dev * dev,u8 addr,u16 data)81 static int gpio_write(struct saa7134_dev *dev, u8 addr, u16 data)
82 {
83 	saa_writeb(SAA7134_GPIO_GPMODE0, 0xff);
84 
85 	/* Write HPI address */
86 	saa_writeb(SAA7134_GPIO_GPSTATUS0, addr);
87 	saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_ADDR);
88 	saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
89 
90 	/* Write low byte */
91 	saa_writeb(SAA7134_GPIO_GPSTATUS0, data & 0xff);
92 	saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_WRITE);
93 	saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
94 
95 	/* Write high byte */
96 	saa_writeb(SAA7134_GPIO_GPSTATUS0, data >> 8);
97 	saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_WRITE);
98 	saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
99 
100 	return 0;
101 }
102 
gpio_read(struct saa7134_dev * dev,u8 addr,u16 * data)103 static int gpio_read(struct saa7134_dev *dev, u8 addr, u16 *data)
104 {
105 	saa_writeb(SAA7134_GPIO_GPMODE0, 0xff);
106 
107 	/* Write HPI address */
108 	saa_writeb(SAA7134_GPIO_GPSTATUS0, addr);
109 	saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_ADDR);
110 	saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
111 
112 	saa_writeb(SAA7134_GPIO_GPMODE0, 0x00);
113 
114 	/* Read low byte */
115 	saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_READ);
116 	saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
117 	saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
118 	*data = saa_readb(SAA7134_GPIO_GPSTATUS0);
119 	saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
120 
121 	/* Read high byte */
122 	saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_READ);
123 	saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
124 	saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
125 	*data |= saa_readb(SAA7134_GPIO_GPSTATUS0) << 8;
126 	saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
127 
128 	return 0;
129 }
130 
saa7134_go7007_interface_reset(struct go7007 * go)131 static int saa7134_go7007_interface_reset(struct go7007 *go)
132 {
133 	struct saa7134_go7007 *saa = go->hpi_context;
134 	struct saa7134_dev *dev = saa->dev;
135 	u16 intr_val, intr_data;
136 	int count = 20;
137 
138 	saa_clearb(SAA7134_TS_PARALLEL, 0x80); /* Disable TS interface */
139 	saa_writeb(SAA7134_GPIO_GPMODE2, 0xa4);
140 	saa_writeb(SAA7134_GPIO_GPMODE0, 0xff);
141 
142 	saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_REQ1);
143 	saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_RESET);
144 	msleep(1);
145 	saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_REQ1);
146 	saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_REQ2);
147 	msleep(10);
148 
149 	saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
150 	saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
151 
152 	saa_readb(SAA7134_GPIO_GPSTATUS2);
153 	/*pr_debug("status is %s\n", saa_readb(SAA7134_GPIO_GPSTATUS2) & 0x40 ? "OK" : "not OK"); */
154 
155 	/* enter command mode...(?) */
156 	saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_REQ1);
157 	saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_REQ2);
158 
159 	do {
160 		saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
161 		saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
162 		saa_readb(SAA7134_GPIO_GPSTATUS2);
163 		/*pr_info("gpio is %08x\n", saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2)); */
164 	} while (--count > 0);
165 
166 	/* Wait for an interrupt to indicate successful hardware reset */
167 	if (go7007_read_interrupt(go, &intr_val, &intr_data) < 0 ||
168 			(intr_val & ~0x1) != 0x55aa) {
169 		pr_err("saa7134-go7007: unable to reset the GO7007\n");
170 		return -1;
171 	}
172 	return 0;
173 }
174 
saa7134_go7007_write_interrupt(struct go7007 * go,int addr,int data)175 static int saa7134_go7007_write_interrupt(struct go7007 *go, int addr, int data)
176 {
177 	struct saa7134_go7007 *saa = go->hpi_context;
178 	struct saa7134_dev *dev = saa->dev;
179 	int i;
180 	u16 status_reg;
181 
182 #ifdef GO7007_HPI_DEBUG
183 	pr_debug("saa7134-go7007: WriteInterrupt: %04x %04x\n", addr, data);
184 #endif
185 
186 	for (i = 0; i < 100; ++i) {
187 		gpio_read(dev, HPI_ADDR_INTR_STATUS, &status_reg);
188 		if (!(status_reg & 0x0010))
189 			break;
190 		msleep(10);
191 	}
192 	if (i == 100) {
193 		pr_err("saa7134-go7007: device is hung, status reg = 0x%04x\n",
194 			status_reg);
195 		return -1;
196 	}
197 	gpio_write(dev, HPI_ADDR_INTR_WR_PARAM, data);
198 	gpio_write(dev, HPI_ADDR_INTR_WR_INDEX, addr);
199 
200 	return 0;
201 }
202 
saa7134_go7007_read_interrupt(struct go7007 * go)203 static int saa7134_go7007_read_interrupt(struct go7007 *go)
204 {
205 	struct saa7134_go7007 *saa = go->hpi_context;
206 	struct saa7134_dev *dev = saa->dev;
207 
208 	/* XXX we need to wait if there is no interrupt available */
209 	go->interrupt_available = 1;
210 	gpio_read(dev, HPI_ADDR_INTR_RET_VALUE, &go->interrupt_value);
211 	gpio_read(dev, HPI_ADDR_INTR_RET_DATA, &go->interrupt_data);
212 #ifdef GO7007_HPI_DEBUG
213 	pr_debug("saa7134-go7007: ReadInterrupt: %04x %04x\n",
214 			go->interrupt_value, go->interrupt_data);
215 #endif
216 	return 0;
217 }
218 
saa7134_go7007_irq_ts_done(struct saa7134_dev * dev,unsigned long status)219 static void saa7134_go7007_irq_ts_done(struct saa7134_dev *dev,
220 						unsigned long status)
221 {
222 	struct go7007 *go = video_get_drvdata(dev->empress_dev);
223 	struct saa7134_go7007 *saa = go->hpi_context;
224 
225 	if (!vb2_is_streaming(&go->vidq))
226 		return;
227 	if (0 != (status & 0x000f0000))
228 		pr_debug("saa7134-go7007: irq: lost %ld\n",
229 				(status >> 16) & 0x0f);
230 	if (status & 0x100000) {
231 		dma_sync_single_for_cpu(&dev->pci->dev,
232 					saa->bottom_dma, PAGE_SIZE, DMA_FROM_DEVICE);
233 		go7007_parse_video_stream(go, saa->bottom, PAGE_SIZE);
234 		saa_writel(SAA7134_RS_BA2(5), saa->bottom_dma);
235 	} else {
236 		dma_sync_single_for_cpu(&dev->pci->dev,
237 					saa->top_dma, PAGE_SIZE, DMA_FROM_DEVICE);
238 		go7007_parse_video_stream(go, saa->top, PAGE_SIZE);
239 		saa_writel(SAA7134_RS_BA1(5), saa->top_dma);
240 	}
241 }
242 
saa7134_go7007_stream_start(struct go7007 * go)243 static int saa7134_go7007_stream_start(struct go7007 *go)
244 {
245 	struct saa7134_go7007 *saa = go->hpi_context;
246 	struct saa7134_dev *dev = saa->dev;
247 
248 	saa->top_dma = dma_map_page(&dev->pci->dev, virt_to_page(saa->top),
249 			0, PAGE_SIZE, DMA_FROM_DEVICE);
250 	if (dma_mapping_error(&dev->pci->dev, saa->top_dma))
251 		return -ENOMEM;
252 	saa->bottom_dma = dma_map_page(&dev->pci->dev,
253 			virt_to_page(saa->bottom),
254 			0, PAGE_SIZE, DMA_FROM_DEVICE);
255 	if (dma_mapping_error(&dev->pci->dev, saa->bottom_dma)) {
256 		dma_unmap_page(&dev->pci->dev, saa->top_dma, PAGE_SIZE,
257 				DMA_FROM_DEVICE);
258 		return -ENOMEM;
259 	}
260 
261 	saa_writel(SAA7134_VIDEO_PORT_CTRL0 >> 2, 0xA300B000);
262 	saa_writel(SAA7134_VIDEO_PORT_CTRL4 >> 2, 0x40000200);
263 
264 	/* Set HPI interface for video */
265 	saa_writeb(SAA7134_GPIO_GPMODE0, 0xff);
266 	saa_writeb(SAA7134_GPIO_GPSTATUS0, HPI_ADDR_VIDEO_BUFFER);
267 	saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_ADDR);
268 	saa_writeb(SAA7134_GPIO_GPMODE0, 0x00);
269 
270 	/* Enable TS interface */
271 	saa_writeb(SAA7134_TS_PARALLEL, 0xe6);
272 
273 	/* Reset TS interface */
274 	saa_setb(SAA7134_TS_SERIAL1, 0x01);
275 	saa_clearb(SAA7134_TS_SERIAL1, 0x01);
276 
277 	/* Set up transfer block size */
278 	saa_writeb(SAA7134_TS_PARALLEL_SERIAL, 128 - 1);
279 	saa_writeb(SAA7134_TS_DMA0, ((PAGE_SIZE >> 7) - 1) & 0xff);
280 	saa_writeb(SAA7134_TS_DMA1, (PAGE_SIZE >> 15) & 0xff);
281 	saa_writeb(SAA7134_TS_DMA2, (PAGE_SIZE >> 31) & 0x3f);
282 
283 	/* Enable video streaming mode */
284 	saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_VIDEO);
285 
286 	saa_writel(SAA7134_RS_BA1(5), saa->top_dma);
287 	saa_writel(SAA7134_RS_BA2(5), saa->bottom_dma);
288 	saa_writel(SAA7134_RS_PITCH(5), 128);
289 	saa_writel(SAA7134_RS_CONTROL(5), SAA7134_RS_CONTROL_BURST_MAX);
290 
291 	/* Enable TS FIFO */
292 	saa_setl(SAA7134_MAIN_CTRL, SAA7134_MAIN_CTRL_TE5);
293 
294 	/* Enable DMA IRQ */
295 	saa_setl(SAA7134_IRQ1,
296 			SAA7134_IRQ1_INTE_RA2_1 | SAA7134_IRQ1_INTE_RA2_0);
297 
298 	return 0;
299 }
300 
saa7134_go7007_stream_stop(struct go7007 * go)301 static int saa7134_go7007_stream_stop(struct go7007 *go)
302 {
303 	struct saa7134_go7007 *saa = go->hpi_context;
304 	struct saa7134_dev *dev;
305 
306 	if (!saa)
307 		return -EINVAL;
308 	dev = saa->dev;
309 	if (!dev)
310 		return -EINVAL;
311 
312 	/* Shut down TS FIFO */
313 	saa_clearl(SAA7134_MAIN_CTRL, SAA7134_MAIN_CTRL_TE5);
314 
315 	/* Disable DMA IRQ */
316 	saa_clearl(SAA7134_IRQ1,
317 			SAA7134_IRQ1_INTE_RA2_1 | SAA7134_IRQ1_INTE_RA2_0);
318 
319 	/* Disable TS interface */
320 	saa_clearb(SAA7134_TS_PARALLEL, 0x80);
321 
322 	dma_unmap_page(&dev->pci->dev, saa->top_dma, PAGE_SIZE,
323 			DMA_FROM_DEVICE);
324 	dma_unmap_page(&dev->pci->dev, saa->bottom_dma, PAGE_SIZE,
325 			DMA_FROM_DEVICE);
326 
327 	return 0;
328 }
329 
saa7134_go7007_send_firmware(struct go7007 * go,u8 * data,int len)330 static int saa7134_go7007_send_firmware(struct go7007 *go, u8 *data, int len)
331 {
332 	struct saa7134_go7007 *saa = go->hpi_context;
333 	struct saa7134_dev *dev = saa->dev;
334 	u16 status_reg;
335 	int i;
336 
337 #ifdef GO7007_HPI_DEBUG
338 	pr_debug("saa7134-go7007: DownloadBuffer sending %d bytes\n", len);
339 #endif
340 
341 	while (len > 0) {
342 		i = len > 64 ? 64 : len;
343 		saa_writeb(SAA7134_GPIO_GPMODE0, 0xff);
344 		saa_writeb(SAA7134_GPIO_GPSTATUS0, HPI_ADDR_INIT_BUFFER);
345 		saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_ADDR);
346 		saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
347 		while (i-- > 0) {
348 			saa_writeb(SAA7134_GPIO_GPSTATUS0, *data);
349 			saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_WRITE);
350 			saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
351 			++data;
352 			--len;
353 		}
354 		for (i = 0; i < 100; ++i) {
355 			gpio_read(dev, HPI_ADDR_INTR_STATUS, &status_reg);
356 			if (!(status_reg & 0x0002))
357 				break;
358 		}
359 		if (i == 100) {
360 			pr_err("saa7134-go7007: device is hung, status reg = 0x%04x\n",
361 			       status_reg);
362 			return -1;
363 		}
364 	}
365 	return 0;
366 }
367 
368 static const struct go7007_hpi_ops saa7134_go7007_hpi_ops = {
369 	.interface_reset	= saa7134_go7007_interface_reset,
370 	.write_interrupt	= saa7134_go7007_write_interrupt,
371 	.read_interrupt		= saa7134_go7007_read_interrupt,
372 	.stream_start		= saa7134_go7007_stream_start,
373 	.stream_stop		= saa7134_go7007_stream_stop,
374 	.send_firmware		= saa7134_go7007_send_firmware,
375 };
376 MODULE_FIRMWARE("go7007/go7007tv.bin");
377 
378 /* --------------------------------------------------------------------------*/
379 
saa7134_go7007_s_std(struct v4l2_subdev * sd,v4l2_std_id norm)380 static int saa7134_go7007_s_std(struct v4l2_subdev *sd, v4l2_std_id norm)
381 {
382 #if 0
383 	struct saa7134_go7007 *saa = container_of(sd, struct saa7134_go7007, sd);
384 	struct saa7134_dev *dev = saa->dev;
385 
386 	return saa7134_s_std_internal(dev, NULL, norm);
387 #else
388 	return 0;
389 #endif
390 }
391 
392 static const struct v4l2_subdev_video_ops saa7134_go7007_video_ops = {
393 	.s_std = saa7134_go7007_s_std,
394 };
395 
396 static const struct v4l2_subdev_ops saa7134_go7007_sd_ops = {
397 	.video = &saa7134_go7007_video_ops,
398 };
399 
400 /* --------------------------------------------------------------------------*/
401 
402 
403 /********************* Add/remove functions *********************/
404 
saa7134_go7007_init(struct saa7134_dev * dev)405 static int saa7134_go7007_init(struct saa7134_dev *dev)
406 {
407 	struct go7007 *go;
408 	struct saa7134_go7007 *saa;
409 	struct v4l2_subdev *sd;
410 
411 	pr_debug("saa7134-go7007: probing new SAA713X board\n");
412 
413 	go = go7007_alloc(&board_voyager, &dev->pci->dev);
414 	if (go == NULL)
415 		return -ENOMEM;
416 
417 	saa = kzalloc(sizeof(struct saa7134_go7007), GFP_KERNEL);
418 	if (saa == NULL) {
419 		kfree(go);
420 		return -ENOMEM;
421 	}
422 
423 	go->board_id = GO7007_BOARDID_PCI_VOYAGER;
424 	snprintf(go->bus_info, sizeof(go->bus_info), "PCI:%s", pci_name(dev->pci));
425 	strscpy(go->name, saa7134_boards[dev->board].name, sizeof(go->name));
426 	go->hpi_ops = &saa7134_go7007_hpi_ops;
427 	go->hpi_context = saa;
428 	saa->dev = dev;
429 
430 	/* Init the subdevice interface */
431 	sd = &saa->sd;
432 	v4l2_subdev_init(sd, &saa7134_go7007_sd_ops);
433 	v4l2_set_subdevdata(sd, saa);
434 	strscpy(sd->name, "saa7134-go7007", sizeof(sd->name));
435 
436 	/* Allocate a couple pages for receiving the compressed stream */
437 	saa->top = (u8 *)get_zeroed_page(GFP_KERNEL);
438 	if (!saa->top)
439 		goto allocfail;
440 	saa->bottom = (u8 *)get_zeroed_page(GFP_KERNEL);
441 	if (!saa->bottom)
442 		goto allocfail;
443 
444 	/* Boot the GO7007 */
445 	if (go7007_boot_encoder(go, go->board_info->flags &
446 					GO7007_BOARD_USE_ONBOARD_I2C) < 0)
447 		goto allocfail;
448 
449 	/* Do any final GO7007 initialization, then register the
450 	 * V4L2 and ALSA interfaces */
451 	if (go7007_register_encoder(go, go->board_info->num_i2c_devs) < 0)
452 		goto allocfail;
453 
454 	/* Register the subdevice interface with the go7007 device */
455 	if (v4l2_device_register_subdev(&go->v4l2_dev, sd) < 0)
456 		pr_info("saa7134-go7007: register subdev failed\n");
457 
458 	dev->empress_dev = &go->vdev;
459 
460 	go->status = STATUS_ONLINE;
461 	return 0;
462 
463 allocfail:
464 	if (saa->top)
465 		free_page((unsigned long)saa->top);
466 	if (saa->bottom)
467 		free_page((unsigned long)saa->bottom);
468 	kfree(saa);
469 	kfree(go);
470 	return -ENOMEM;
471 }
472 
saa7134_go7007_fini(struct saa7134_dev * dev)473 static int saa7134_go7007_fini(struct saa7134_dev *dev)
474 {
475 	struct go7007 *go;
476 	struct saa7134_go7007 *saa;
477 
478 	if (NULL == dev->empress_dev)
479 		return 0;
480 
481 	go = video_get_drvdata(dev->empress_dev);
482 	if (go->audio_enabled)
483 		go7007_snd_remove(go);
484 
485 	saa = go->hpi_context;
486 	go->status = STATUS_SHUTDOWN;
487 	free_page((unsigned long)saa->top);
488 	free_page((unsigned long)saa->bottom);
489 	v4l2_device_unregister_subdev(&saa->sd);
490 	kfree(saa);
491 	vb2_video_unregister_device(&go->vdev);
492 
493 	v4l2_device_put(&go->v4l2_dev);
494 	dev->empress_dev = NULL;
495 
496 	return 0;
497 }
498 
499 static struct saa7134_mpeg_ops saa7134_go7007_ops = {
500 	.type          = SAA7134_MPEG_GO7007,
501 	.init          = saa7134_go7007_init,
502 	.fini          = saa7134_go7007_fini,
503 	.irq_ts_done   = saa7134_go7007_irq_ts_done,
504 };
505 
saa7134_go7007_mod_init(void)506 static int __init saa7134_go7007_mod_init(void)
507 {
508 	return saa7134_ts_register(&saa7134_go7007_ops);
509 }
510 
saa7134_go7007_mod_cleanup(void)511 static void __exit saa7134_go7007_mod_cleanup(void)
512 {
513 	saa7134_ts_unregister(&saa7134_go7007_ops);
514 }
515 
516 module_init(saa7134_go7007_mod_init);
517 module_exit(saa7134_go7007_mod_cleanup);
518 
519 MODULE_LICENSE("GPL v2");
520