]>
Commit | Line | Data |
---|---|---|
95c5d605 AG |
1 | /* |
2 | * Copyright 2008-2010 Freescale Semiconductor, Inc. All Rights Reserved. | |
3 | * | |
4 | * Freescale VIU video driver | |
5 | * | |
6 | * Authors: Hongjun Chen <hong-jun.chen@freescale.com> | |
7 | * Porting to 2.6.35 by DENX Software Engineering, | |
8 | * Anatolij Gustschin <agust@denx.de> | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify it | |
11 | * under the terms of the GNU General Public License as published by the | |
12 | * Free Software Foundation; either version 2 of the License, or (at your | |
13 | * option) any later version. | |
14 | * | |
15 | */ | |
16 | ||
17 | #include <linux/module.h> | |
18 | #include <linux/clk.h> | |
19 | #include <linux/kernel.h> | |
20 | #include <linux/i2c.h> | |
21 | #include <linux/init.h> | |
22 | #include <linux/interrupt.h> | |
23 | #include <linux/io.h> | |
24 | #include <linux/of_platform.h> | |
e69e34e9 | 25 | #include <linux/slab.h> |
95c5d605 AG |
26 | #include <media/v4l2-common.h> |
27 | #include <media/v4l2-device.h> | |
28 | #include <media/v4l2-ioctl.h> | |
29 | #include <media/videobuf-dma-contig.h> | |
30 | ||
31 | #define DRV_NAME "fsl_viu" | |
64dc3c1a | 32 | #define VIU_VERSION "0.5.1" |
95c5d605 AG |
33 | |
34 | #define BUFFER_TIMEOUT msecs_to_jiffies(500) /* 0.5 seconds */ | |
35 | ||
36 | #define VIU_VID_MEM_LIMIT 4 /* Video memory limit, in Mb */ | |
37 | ||
38 | /* I2C address of video decoder chip is 0x4A */ | |
39 | #define VIU_VIDEO_DECODER_ADDR 0x25 | |
40 | ||
41 | /* supported controls */ | |
42 | static struct v4l2_queryctrl viu_qctrl[] = { | |
43 | { | |
44 | .id = V4L2_CID_BRIGHTNESS, | |
45 | .type = V4L2_CTRL_TYPE_INTEGER, | |
46 | .name = "Brightness", | |
47 | .minimum = 0, | |
48 | .maximum = 255, | |
49 | .step = 1, | |
50 | .default_value = 127, | |
51 | .flags = 0, | |
52 | }, { | |
53 | .id = V4L2_CID_CONTRAST, | |
54 | .type = V4L2_CTRL_TYPE_INTEGER, | |
55 | .name = "Contrast", | |
56 | .minimum = 0, | |
57 | .maximum = 255, | |
58 | .step = 0x1, | |
59 | .default_value = 0x10, | |
60 | .flags = 0, | |
61 | }, { | |
62 | .id = V4L2_CID_SATURATION, | |
63 | .type = V4L2_CTRL_TYPE_INTEGER, | |
64 | .name = "Saturation", | |
65 | .minimum = 0, | |
66 | .maximum = 255, | |
67 | .step = 0x1, | |
68 | .default_value = 127, | |
69 | .flags = 0, | |
70 | }, { | |
71 | .id = V4L2_CID_HUE, | |
72 | .type = V4L2_CTRL_TYPE_INTEGER, | |
73 | .name = "Hue", | |
74 | .minimum = -128, | |
75 | .maximum = 127, | |
76 | .step = 0x1, | |
77 | .default_value = 0, | |
78 | .flags = 0, | |
79 | } | |
80 | }; | |
81 | ||
82 | static int qctl_regs[ARRAY_SIZE(viu_qctrl)]; | |
83 | ||
84 | static int info_level; | |
85 | ||
86 | #define dprintk(level, fmt, arg...) \ | |
87 | do { \ | |
88 | if (level <= info_level) \ | |
89 | printk(KERN_DEBUG "viu: " fmt , ## arg); \ | |
90 | } while (0) | |
91 | ||
92 | /* | |
93 | * Basic structures | |
94 | */ | |
95 | struct viu_fmt { | |
96 | char name[32]; | |
97 | u32 fourcc; /* v4l2 format id */ | |
98 | u32 pixelformat; | |
99 | int depth; | |
100 | }; | |
101 | ||
102 | static struct viu_fmt formats[] = { | |
103 | { | |
104 | .name = "RGB-16 (5/B-6/G-5/R)", | |
105 | .fourcc = V4L2_PIX_FMT_RGB565, | |
106 | .pixelformat = V4L2_PIX_FMT_RGB565, | |
107 | .depth = 16, | |
108 | }, { | |
109 | .name = "RGB-32 (A-R-G-B)", | |
110 | .fourcc = V4L2_PIX_FMT_RGB32, | |
111 | .pixelformat = V4L2_PIX_FMT_RGB32, | |
112 | .depth = 32, | |
113 | } | |
114 | }; | |
115 | ||
116 | struct viu_dev; | |
117 | struct viu_buf; | |
118 | ||
119 | /* buffer for one video frame */ | |
120 | struct viu_buf { | |
121 | /* common v4l buffer stuff -- must be first */ | |
122 | struct videobuf_buffer vb; | |
123 | struct viu_fmt *fmt; | |
124 | }; | |
125 | ||
126 | struct viu_dmaqueue { | |
127 | struct viu_dev *dev; | |
128 | struct list_head active; | |
129 | struct list_head queued; | |
130 | struct timer_list timeout; | |
131 | }; | |
132 | ||
133 | struct viu_status { | |
134 | u32 field_irq; | |
135 | u32 vsync_irq; | |
136 | u32 hsync_irq; | |
137 | u32 vstart_irq; | |
138 | u32 dma_end_irq; | |
139 | u32 error_irq; | |
140 | }; | |
141 | ||
142 | struct viu_reg { | |
143 | u32 status_cfg; | |
144 | u32 luminance; | |
145 | u32 chroma_r; | |
146 | u32 chroma_g; | |
147 | u32 chroma_b; | |
148 | u32 field_base_addr; | |
149 | u32 dma_inc; | |
150 | u32 picture_count; | |
151 | u32 req_alarm; | |
152 | u32 alpha; | |
153 | } __attribute__ ((packed)); | |
154 | ||
155 | struct viu_dev { | |
156 | struct v4l2_device v4l2_dev; | |
157 | struct mutex lock; | |
158 | spinlock_t slock; | |
159 | int users; | |
160 | ||
161 | struct device *dev; | |
162 | /* various device info */ | |
163 | struct video_device *vdev; | |
164 | struct viu_dmaqueue vidq; | |
165 | enum v4l2_field capfield; | |
166 | int field; | |
167 | int first; | |
168 | int dma_done; | |
169 | ||
170 | /* Hardware register area */ | |
171 | struct viu_reg *vr; | |
172 | ||
173 | /* Interrupt vector */ | |
174 | int irq; | |
175 | struct viu_status irqs; | |
176 | ||
177 | /* video overlay */ | |
178 | struct v4l2_framebuffer ovbuf; | |
179 | struct viu_fmt *ovfmt; | |
180 | unsigned int ovenable; | |
181 | enum v4l2_field ovfield; | |
182 | ||
183 | /* crop */ | |
184 | struct v4l2_rect crop_current; | |
185 | ||
186 | /* clock pointer */ | |
187 | struct clk *clk; | |
188 | ||
189 | /* decoder */ | |
190 | struct v4l2_subdev *decoder; | |
50155c25 AG |
191 | |
192 | v4l2_std_id std; | |
95c5d605 AG |
193 | }; |
194 | ||
195 | struct viu_fh { | |
196 | struct viu_dev *dev; | |
197 | ||
198 | /* video capture */ | |
199 | struct videobuf_queue vb_vidq; | |
200 | spinlock_t vbq_lock; /* spinlock for the videobuf queue */ | |
201 | ||
202 | /* video overlay */ | |
203 | struct v4l2_window win; | |
204 | struct v4l2_clip clips[1]; | |
205 | ||
206 | /* video capture */ | |
207 | struct viu_fmt *fmt; | |
208 | int width, height, sizeimage; | |
209 | enum v4l2_buf_type type; | |
210 | }; | |
211 | ||
212 | static struct viu_reg reg_val; | |
213 | ||
214 | /* | |
215 | * Macro definitions of VIU registers | |
216 | */ | |
217 | ||
218 | /* STATUS_CONFIG register */ | |
219 | enum status_config { | |
220 | SOFT_RST = 1 << 0, | |
221 | ||
222 | ERR_MASK = 0x0f << 4, /* Error code mask */ | |
223 | ERR_NO = 0x00, /* No error */ | |
224 | ERR_DMA_V = 0x01 << 4, /* DMA in vertical active */ | |
225 | ERR_DMA_VB = 0x02 << 4, /* DMA in vertical blanking */ | |
226 | ERR_LINE_TOO_LONG = 0x04 << 4, /* Line too long */ | |
227 | ERR_TOO_MANG_LINES = 0x05 << 4, /* Too many lines in field */ | |
228 | ERR_LINE_TOO_SHORT = 0x06 << 4, /* Line too short */ | |
229 | ERR_NOT_ENOUGH_LINE = 0x07 << 4, /* Not enough lines in field */ | |
230 | ERR_FIFO_OVERFLOW = 0x08 << 4, /* FIFO overflow */ | |
231 | ERR_FIFO_UNDERFLOW = 0x09 << 4, /* FIFO underflow */ | |
232 | ERR_1bit_ECC = 0x0a << 4, /* One bit ECC error */ | |
233 | ERR_MORE_ECC = 0x0b << 4, /* Two/more bits ECC error */ | |
234 | ||
235 | INT_FIELD_EN = 0x01 << 8, /* Enable field interrupt */ | |
236 | INT_VSYNC_EN = 0x01 << 9, /* Enable vsync interrupt */ | |
237 | INT_HSYNC_EN = 0x01 << 10, /* Enable hsync interrupt */ | |
238 | INT_VSTART_EN = 0x01 << 11, /* Enable vstart interrupt */ | |
239 | INT_DMA_END_EN = 0x01 << 12, /* Enable DMA end interrupt */ | |
240 | INT_ERROR_EN = 0x01 << 13, /* Enable error interrupt */ | |
241 | INT_ECC_EN = 0x01 << 14, /* Enable ECC interrupt */ | |
242 | ||
243 | INT_FIELD_STATUS = 0x01 << 16, /* field interrupt status */ | |
244 | INT_VSYNC_STATUS = 0x01 << 17, /* vsync interrupt status */ | |
245 | INT_HSYNC_STATUS = 0x01 << 18, /* hsync interrupt status */ | |
246 | INT_VSTART_STATUS = 0x01 << 19, /* vstart interrupt status */ | |
247 | INT_DMA_END_STATUS = 0x01 << 20, /* DMA end interrupt status */ | |
248 | INT_ERROR_STATUS = 0x01 << 21, /* error interrupt status */ | |
249 | ||
250 | DMA_ACT = 0x01 << 27, /* Enable DMA transfer */ | |
251 | FIELD_NO = 0x01 << 28, /* Field number */ | |
252 | DITHER_ON = 0x01 << 29, /* Dithering is on */ | |
253 | ROUND_ON = 0x01 << 30, /* Round is on */ | |
254 | MODE_32BIT = 0x01 << 31, /* Data in RGBa888, | |
255 | * 0 in RGB565 | |
256 | */ | |
257 | }; | |
258 | ||
259 | #define norm_maxw() 720 | |
260 | #define norm_maxh() 576 | |
261 | ||
262 | #define INT_ALL_STATUS (INT_FIELD_STATUS | INT_VSYNC_STATUS | \ | |
263 | INT_HSYNC_STATUS | INT_VSTART_STATUS | \ | |
264 | INT_DMA_END_STATUS | INT_ERROR_STATUS) | |
265 | ||
266 | #define NUM_FORMATS ARRAY_SIZE(formats) | |
267 | ||
268 | static irqreturn_t viu_intr(int irq, void *dev_id); | |
269 | ||
270 | struct viu_fmt *format_by_fourcc(int fourcc) | |
271 | { | |
272 | int i; | |
273 | ||
274 | for (i = 0; i < NUM_FORMATS; i++) { | |
275 | if (formats[i].pixelformat == fourcc) | |
276 | return formats + i; | |
277 | } | |
278 | ||
279 | dprintk(0, "unknown pixelformat:'%4.4s'\n", (char *)&fourcc); | |
280 | return NULL; | |
281 | } | |
282 | ||
283 | void viu_start_dma(struct viu_dev *dev) | |
284 | { | |
285 | struct viu_reg *vr = dev->vr; | |
286 | ||
287 | dev->field = 0; | |
288 | ||
289 | /* Enable DMA operation */ | |
290 | out_be32(&vr->status_cfg, SOFT_RST); | |
291 | out_be32(&vr->status_cfg, INT_FIELD_EN); | |
292 | } | |
293 | ||
294 | void viu_stop_dma(struct viu_dev *dev) | |
295 | { | |
296 | struct viu_reg *vr = dev->vr; | |
297 | int cnt = 100; | |
298 | u32 status_cfg; | |
299 | ||
300 | out_be32(&vr->status_cfg, 0); | |
301 | ||
302 | /* Clear pending interrupts */ | |
303 | status_cfg = in_be32(&vr->status_cfg); | |
304 | if (status_cfg & 0x3f0000) | |
305 | out_be32(&vr->status_cfg, status_cfg & 0x3f0000); | |
306 | ||
307 | if (status_cfg & DMA_ACT) { | |
308 | do { | |
309 | status_cfg = in_be32(&vr->status_cfg); | |
310 | if (status_cfg & INT_DMA_END_STATUS) | |
311 | break; | |
312 | } while (cnt--); | |
313 | ||
314 | if (cnt < 0) { | |
315 | /* timed out, issue soft reset */ | |
316 | out_be32(&vr->status_cfg, SOFT_RST); | |
317 | out_be32(&vr->status_cfg, 0); | |
318 | } else { | |
319 | /* clear DMA_END and other pending irqs */ | |
320 | out_be32(&vr->status_cfg, status_cfg & 0x3f0000); | |
321 | } | |
322 | } | |
323 | ||
324 | dev->field = 0; | |
325 | } | |
326 | ||
327 | static int restart_video_queue(struct viu_dmaqueue *vidq) | |
328 | { | |
329 | struct viu_buf *buf, *prev; | |
330 | ||
331 | dprintk(1, "%s vidq=0x%08lx\n", __func__, (unsigned long)vidq); | |
332 | if (!list_empty(&vidq->active)) { | |
333 | buf = list_entry(vidq->active.next, struct viu_buf, vb.queue); | |
334 | dprintk(2, "restart_queue [%p/%d]: restart dma\n", | |
335 | buf, buf->vb.i); | |
336 | ||
337 | viu_stop_dma(vidq->dev); | |
338 | ||
339 | /* cancel all outstanding capture requests */ | |
340 | list_for_each_entry_safe(buf, prev, &vidq->active, vb.queue) { | |
341 | list_del(&buf->vb.queue); | |
342 | buf->vb.state = VIDEOBUF_ERROR; | |
343 | wake_up(&buf->vb.done); | |
344 | } | |
345 | mod_timer(&vidq->timeout, jiffies+BUFFER_TIMEOUT); | |
346 | return 0; | |
347 | } | |
348 | ||
349 | prev = NULL; | |
350 | for (;;) { | |
351 | if (list_empty(&vidq->queued)) | |
352 | return 0; | |
353 | buf = list_entry(vidq->queued.next, struct viu_buf, vb.queue); | |
354 | if (prev == NULL) { | |
0666c6b8 | 355 | list_move_tail(&buf->vb.queue, &vidq->active); |
95c5d605 AG |
356 | |
357 | dprintk(1, "Restarting video dma\n"); | |
358 | viu_stop_dma(vidq->dev); | |
359 | viu_start_dma(vidq->dev); | |
360 | ||
361 | buf->vb.state = VIDEOBUF_ACTIVE; | |
362 | mod_timer(&vidq->timeout, jiffies+BUFFER_TIMEOUT); | |
363 | dprintk(2, "[%p/%d] restart_queue - first active\n", | |
364 | buf, buf->vb.i); | |
365 | ||
366 | } else if (prev->vb.width == buf->vb.width && | |
367 | prev->vb.height == buf->vb.height && | |
368 | prev->fmt == buf->fmt) { | |
0666c6b8 | 369 | list_move_tail(&buf->vb.queue, &vidq->active); |
95c5d605 AG |
370 | buf->vb.state = VIDEOBUF_ACTIVE; |
371 | dprintk(2, "[%p/%d] restart_queue - move to active\n", | |
372 | buf, buf->vb.i); | |
373 | } else { | |
374 | return 0; | |
375 | } | |
376 | prev = buf; | |
377 | } | |
378 | } | |
379 | ||
380 | static void viu_vid_timeout(unsigned long data) | |
381 | { | |
382 | struct viu_dev *dev = (struct viu_dev *)data; | |
383 | struct viu_buf *buf; | |
384 | struct viu_dmaqueue *vidq = &dev->vidq; | |
385 | ||
386 | while (!list_empty(&vidq->active)) { | |
387 | buf = list_entry(vidq->active.next, struct viu_buf, vb.queue); | |
388 | list_del(&buf->vb.queue); | |
389 | buf->vb.state = VIDEOBUF_ERROR; | |
390 | wake_up(&buf->vb.done); | |
391 | dprintk(1, "viu/0: [%p/%d] timeout\n", buf, buf->vb.i); | |
392 | } | |
393 | ||
394 | restart_video_queue(vidq); | |
395 | } | |
396 | ||
397 | /* | |
398 | * Videobuf operations | |
399 | */ | |
400 | static int buffer_setup(struct videobuf_queue *vq, unsigned int *count, | |
401 | unsigned int *size) | |
402 | { | |
403 | struct viu_fh *fh = vq->priv_data; | |
404 | ||
405 | *size = fh->width * fh->height * fh->fmt->depth >> 3; | |
406 | if (*count == 0) | |
407 | *count = 32; | |
408 | ||
409 | while (*size * *count > VIU_VID_MEM_LIMIT * 1024 * 1024) | |
410 | (*count)--; | |
411 | ||
412 | dprintk(1, "%s, count=%d, size=%d\n", __func__, *count, *size); | |
413 | return 0; | |
414 | } | |
415 | ||
416 | static void free_buffer(struct videobuf_queue *vq, struct viu_buf *buf) | |
417 | { | |
418 | struct videobuf_buffer *vb = &buf->vb; | |
419 | void *vaddr = NULL; | |
420 | ||
421 | BUG_ON(in_interrupt()); | |
422 | ||
0e0809a5 | 423 | videobuf_waiton(vq, &buf->vb, 0, 0); |
95c5d605 AG |
424 | |
425 | if (vq->int_ops && vq->int_ops->vaddr) | |
426 | vaddr = vq->int_ops->vaddr(vb); | |
427 | ||
428 | if (vaddr) | |
429 | videobuf_dma_contig_free(vq, &buf->vb); | |
430 | ||
431 | buf->vb.state = VIDEOBUF_NEEDS_INIT; | |
432 | } | |
433 | ||
434 | inline int buffer_activate(struct viu_dev *dev, struct viu_buf *buf) | |
435 | { | |
436 | struct viu_reg *vr = dev->vr; | |
437 | int bpp; | |
438 | ||
439 | /* setup the DMA base address */ | |
440 | reg_val.field_base_addr = videobuf_to_dma_contig(&buf->vb); | |
441 | ||
442 | dprintk(1, "buffer_activate [%p/%d]: dma addr 0x%lx\n", | |
443 | buf, buf->vb.i, (unsigned long)reg_val.field_base_addr); | |
444 | ||
445 | /* interlace is on by default, set horizontal DMA increment */ | |
446 | reg_val.status_cfg = 0; | |
447 | bpp = buf->fmt->depth >> 3; | |
448 | switch (bpp) { | |
449 | case 2: | |
450 | reg_val.status_cfg &= ~MODE_32BIT; | |
451 | reg_val.dma_inc = buf->vb.width * 2; | |
452 | break; | |
453 | case 4: | |
454 | reg_val.status_cfg |= MODE_32BIT; | |
455 | reg_val.dma_inc = buf->vb.width * 4; | |
456 | break; | |
457 | default: | |
458 | dprintk(0, "doesn't support color depth(%d)\n", | |
459 | bpp * 8); | |
460 | return -EINVAL; | |
461 | } | |
462 | ||
463 | /* setup picture_count register */ | |
464 | reg_val.picture_count = (buf->vb.height / 2) << 16 | | |
465 | buf->vb.width; | |
466 | ||
467 | reg_val.status_cfg |= DMA_ACT | INT_DMA_END_EN | INT_FIELD_EN; | |
468 | ||
469 | buf->vb.state = VIDEOBUF_ACTIVE; | |
470 | dev->capfield = buf->vb.field; | |
471 | ||
472 | /* reset dma increment if needed */ | |
473 | if (!V4L2_FIELD_HAS_BOTH(buf->vb.field)) | |
474 | reg_val.dma_inc = 0; | |
475 | ||
476 | out_be32(&vr->dma_inc, reg_val.dma_inc); | |
477 | out_be32(&vr->picture_count, reg_val.picture_count); | |
478 | out_be32(&vr->field_base_addr, reg_val.field_base_addr); | |
479 | mod_timer(&dev->vidq.timeout, jiffies + BUFFER_TIMEOUT); | |
480 | return 0; | |
481 | } | |
482 | ||
483 | static int buffer_prepare(struct videobuf_queue *vq, | |
484 | struct videobuf_buffer *vb, | |
485 | enum v4l2_field field) | |
486 | { | |
487 | struct viu_fh *fh = vq->priv_data; | |
488 | struct viu_buf *buf = container_of(vb, struct viu_buf, vb); | |
489 | int rc; | |
490 | ||
491 | BUG_ON(fh->fmt == NULL); | |
492 | ||
493 | if (fh->width < 48 || fh->width > norm_maxw() || | |
494 | fh->height < 32 || fh->height > norm_maxh()) | |
495 | return -EINVAL; | |
496 | buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3; | |
497 | if (buf->vb.baddr != 0 && buf->vb.bsize < buf->vb.size) | |
498 | return -EINVAL; | |
499 | ||
500 | if (buf->fmt != fh->fmt || | |
501 | buf->vb.width != fh->width || | |
502 | buf->vb.height != fh->height || | |
503 | buf->vb.field != field) { | |
504 | buf->fmt = fh->fmt; | |
505 | buf->vb.width = fh->width; | |
506 | buf->vb.height = fh->height; | |
507 | buf->vb.field = field; | |
508 | } | |
509 | ||
510 | if (buf->vb.state == VIDEOBUF_NEEDS_INIT) { | |
511 | rc = videobuf_iolock(vq, &buf->vb, NULL); | |
512 | if (rc != 0) | |
513 | goto fail; | |
514 | ||
515 | buf->vb.width = fh->width; | |
516 | buf->vb.height = fh->height; | |
517 | buf->vb.field = field; | |
518 | buf->fmt = fh->fmt; | |
519 | } | |
520 | ||
521 | buf->vb.state = VIDEOBUF_PREPARED; | |
522 | return 0; | |
523 | ||
524 | fail: | |
525 | free_buffer(vq, buf); | |
526 | return rc; | |
527 | } | |
528 | ||
529 | static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb) | |
530 | { | |
531 | struct viu_buf *buf = container_of(vb, struct viu_buf, vb); | |
532 | struct viu_fh *fh = vq->priv_data; | |
533 | struct viu_dev *dev = fh->dev; | |
534 | struct viu_dmaqueue *vidq = &dev->vidq; | |
535 | struct viu_buf *prev; | |
536 | ||
537 | if (!list_empty(&vidq->queued)) { | |
538 | dprintk(1, "adding vb queue=0x%08lx\n", | |
539 | (unsigned long)&buf->vb.queue); | |
540 | dprintk(1, "vidq pointer 0x%p, queued 0x%p\n", | |
541 | vidq, &vidq->queued); | |
542 | dprintk(1, "dev %p, queued: self %p, next %p, head %p\n", | |
543 | dev, &vidq->queued, vidq->queued.next, | |
544 | vidq->queued.prev); | |
545 | list_add_tail(&buf->vb.queue, &vidq->queued); | |
546 | buf->vb.state = VIDEOBUF_QUEUED; | |
547 | dprintk(2, "[%p/%d] buffer_queue - append to queued\n", | |
548 | buf, buf->vb.i); | |
549 | } else if (list_empty(&vidq->active)) { | |
550 | dprintk(1, "adding vb active=0x%08lx\n", | |
551 | (unsigned long)&buf->vb.queue); | |
552 | list_add_tail(&buf->vb.queue, &vidq->active); | |
553 | buf->vb.state = VIDEOBUF_ACTIVE; | |
554 | mod_timer(&vidq->timeout, jiffies+BUFFER_TIMEOUT); | |
555 | dprintk(2, "[%p/%d] buffer_queue - first active\n", | |
556 | buf, buf->vb.i); | |
557 | ||
558 | buffer_activate(dev, buf); | |
559 | } else { | |
560 | dprintk(1, "adding vb queue2=0x%08lx\n", | |
561 | (unsigned long)&buf->vb.queue); | |
562 | prev = list_entry(vidq->active.prev, struct viu_buf, vb.queue); | |
563 | if (prev->vb.width == buf->vb.width && | |
564 | prev->vb.height == buf->vb.height && | |
565 | prev->fmt == buf->fmt) { | |
566 | list_add_tail(&buf->vb.queue, &vidq->active); | |
567 | buf->vb.state = VIDEOBUF_ACTIVE; | |
568 | dprintk(2, "[%p/%d] buffer_queue - append to active\n", | |
569 | buf, buf->vb.i); | |
570 | } else { | |
571 | list_add_tail(&buf->vb.queue, &vidq->queued); | |
572 | buf->vb.state = VIDEOBUF_QUEUED; | |
573 | dprintk(2, "[%p/%d] buffer_queue - first queued\n", | |
574 | buf, buf->vb.i); | |
575 | } | |
576 | } | |
577 | } | |
578 | ||
579 | static void buffer_release(struct videobuf_queue *vq, | |
580 | struct videobuf_buffer *vb) | |
581 | { | |
582 | struct viu_buf *buf = container_of(vb, struct viu_buf, vb); | |
583 | struct viu_fh *fh = vq->priv_data; | |
584 | struct viu_dev *dev = (struct viu_dev *)fh->dev; | |
585 | ||
586 | viu_stop_dma(dev); | |
587 | free_buffer(vq, buf); | |
588 | } | |
589 | ||
590 | static struct videobuf_queue_ops viu_video_qops = { | |
591 | .buf_setup = buffer_setup, | |
592 | .buf_prepare = buffer_prepare, | |
593 | .buf_queue = buffer_queue, | |
594 | .buf_release = buffer_release, | |
595 | }; | |
596 | ||
597 | /* | |
598 | * IOCTL vidioc handling | |
599 | */ | |
600 | static int vidioc_querycap(struct file *file, void *priv, | |
601 | struct v4l2_capability *cap) | |
602 | { | |
603 | strcpy(cap->driver, "viu"); | |
604 | strcpy(cap->card, "viu"); | |
95c5d605 AG |
605 | cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | |
606 | V4L2_CAP_STREAMING | | |
607 | V4L2_CAP_VIDEO_OVERLAY | | |
608 | V4L2_CAP_READWRITE; | |
609 | return 0; | |
610 | } | |
611 | ||
612 | static int vidioc_enum_fmt(struct file *file, void *priv, | |
613 | struct v4l2_fmtdesc *f) | |
614 | { | |
615 | int index = f->index; | |
616 | ||
617 | if (f->index > NUM_FORMATS) | |
618 | return -EINVAL; | |
619 | ||
620 | strlcpy(f->description, formats[index].name, sizeof(f->description)); | |
621 | f->pixelformat = formats[index].fourcc; | |
622 | return 0; | |
623 | } | |
624 | ||
625 | static int vidioc_g_fmt_cap(struct file *file, void *priv, | |
626 | struct v4l2_format *f) | |
627 | { | |
628 | struct viu_fh *fh = priv; | |
629 | ||
630 | f->fmt.pix.width = fh->width; | |
631 | f->fmt.pix.height = fh->height; | |
632 | f->fmt.pix.field = fh->vb_vidq.field; | |
633 | f->fmt.pix.pixelformat = fh->fmt->pixelformat; | |
634 | f->fmt.pix.bytesperline = | |
635 | (f->fmt.pix.width * fh->fmt->depth) >> 3; | |
636 | f->fmt.pix.sizeimage = fh->sizeimage; | |
637 | return 0; | |
638 | } | |
639 | ||
640 | static int vidioc_try_fmt_cap(struct file *file, void *priv, | |
641 | struct v4l2_format *f) | |
642 | { | |
643 | struct viu_fmt *fmt; | |
644 | enum v4l2_field field; | |
645 | unsigned int maxw, maxh; | |
646 | ||
647 | fmt = format_by_fourcc(f->fmt.pix.pixelformat); | |
648 | if (!fmt) { | |
649 | dprintk(1, "Fourcc format (0x%08x) invalid.", | |
650 | f->fmt.pix.pixelformat); | |
651 | return -EINVAL; | |
652 | } | |
653 | ||
654 | field = f->fmt.pix.field; | |
655 | ||
656 | if (field == V4L2_FIELD_ANY) { | |
657 | field = V4L2_FIELD_INTERLACED; | |
658 | } else if (field != V4L2_FIELD_INTERLACED) { | |
659 | dprintk(1, "Field type invalid.\n"); | |
660 | return -EINVAL; | |
661 | } | |
662 | ||
663 | maxw = norm_maxw(); | |
664 | maxh = norm_maxh(); | |
665 | ||
666 | f->fmt.pix.field = field; | |
667 | if (f->fmt.pix.height < 32) | |
668 | f->fmt.pix.height = 32; | |
669 | if (f->fmt.pix.height > maxh) | |
670 | f->fmt.pix.height = maxh; | |
671 | if (f->fmt.pix.width < 48) | |
672 | f->fmt.pix.width = 48; | |
673 | if (f->fmt.pix.width > maxw) | |
674 | f->fmt.pix.width = maxw; | |
675 | f->fmt.pix.width &= ~0x03; | |
676 | f->fmt.pix.bytesperline = | |
677 | (f->fmt.pix.width * fmt->depth) >> 3; | |
678 | ||
679 | return 0; | |
680 | } | |
681 | ||
682 | static int vidioc_s_fmt_cap(struct file *file, void *priv, | |
683 | struct v4l2_format *f) | |
684 | { | |
685 | struct viu_fh *fh = priv; | |
686 | int ret; | |
687 | ||
688 | ret = vidioc_try_fmt_cap(file, fh, f); | |
689 | if (ret < 0) | |
690 | return ret; | |
691 | ||
692 | fh->fmt = format_by_fourcc(f->fmt.pix.pixelformat); | |
693 | fh->width = f->fmt.pix.width; | |
694 | fh->height = f->fmt.pix.height; | |
695 | fh->sizeimage = f->fmt.pix.sizeimage; | |
696 | fh->vb_vidq.field = f->fmt.pix.field; | |
697 | fh->type = f->type; | |
698 | dprintk(1, "set to pixelformat '%4.6s'\n", (char *)&fh->fmt->name); | |
699 | return 0; | |
700 | } | |
701 | ||
702 | static int vidioc_g_fmt_overlay(struct file *file, void *priv, | |
703 | struct v4l2_format *f) | |
704 | { | |
705 | struct viu_fh *fh = priv; | |
706 | ||
707 | f->fmt.win = fh->win; | |
708 | return 0; | |
709 | } | |
710 | ||
711 | static int verify_preview(struct viu_dev *dev, struct v4l2_window *win) | |
712 | { | |
713 | enum v4l2_field field; | |
714 | int maxw, maxh; | |
715 | ||
716 | if (dev->ovbuf.base == NULL) | |
717 | return -EINVAL; | |
718 | if (dev->ovfmt == NULL) | |
719 | return -EINVAL; | |
720 | if (win->w.width < 48 || win->w.height < 32) | |
721 | return -EINVAL; | |
722 | ||
723 | field = win->field; | |
724 | maxw = dev->crop_current.width; | |
725 | maxh = dev->crop_current.height; | |
726 | ||
727 | if (field == V4L2_FIELD_ANY) { | |
728 | field = (win->w.height > maxh/2) | |
729 | ? V4L2_FIELD_INTERLACED | |
730 | : V4L2_FIELD_TOP; | |
731 | } | |
732 | switch (field) { | |
733 | case V4L2_FIELD_TOP: | |
734 | case V4L2_FIELD_BOTTOM: | |
735 | maxh = maxh / 2; | |
736 | break; | |
737 | case V4L2_FIELD_INTERLACED: | |
738 | break; | |
739 | default: | |
740 | return -EINVAL; | |
741 | } | |
742 | ||
743 | win->field = field; | |
744 | if (win->w.width > maxw) | |
745 | win->w.width = maxw; | |
746 | if (win->w.height > maxh) | |
747 | win->w.height = maxh; | |
748 | return 0; | |
749 | } | |
750 | ||
751 | inline void viu_activate_overlay(struct viu_reg *viu_reg) | |
752 | { | |
753 | struct viu_reg *vr = viu_reg; | |
754 | ||
755 | out_be32(&vr->field_base_addr, reg_val.field_base_addr); | |
756 | out_be32(&vr->dma_inc, reg_val.dma_inc); | |
757 | out_be32(&vr->picture_count, reg_val.picture_count); | |
758 | } | |
759 | ||
791ae699 | 760 | static int viu_setup_preview(struct viu_dev *dev, struct viu_fh *fh) |
95c5d605 AG |
761 | { |
762 | int bpp; | |
763 | ||
764 | dprintk(1, "%s %dx%d %s\n", __func__, | |
765 | fh->win.w.width, fh->win.w.height, dev->ovfmt->name); | |
766 | ||
767 | reg_val.status_cfg = 0; | |
768 | ||
769 | /* setup window */ | |
770 | reg_val.picture_count = (fh->win.w.height / 2) << 16 | | |
771 | fh->win.w.width; | |
772 | ||
773 | /* setup color depth and dma increment */ | |
774 | bpp = dev->ovfmt->depth / 8; | |
775 | switch (bpp) { | |
776 | case 2: | |
777 | reg_val.status_cfg &= ~MODE_32BIT; | |
778 | reg_val.dma_inc = fh->win.w.width * 2; | |
779 | break; | |
780 | case 4: | |
781 | reg_val.status_cfg |= MODE_32BIT; | |
782 | reg_val.dma_inc = fh->win.w.width * 4; | |
783 | break; | |
784 | default: | |
785 | dprintk(0, "device doesn't support color depth(%d)\n", | |
786 | bpp * 8); | |
787 | return -EINVAL; | |
788 | } | |
789 | ||
790 | dev->ovfield = fh->win.field; | |
791 | if (!V4L2_FIELD_HAS_BOTH(dev->ovfield)) | |
792 | reg_val.dma_inc = 0; | |
793 | ||
794 | reg_val.status_cfg |= DMA_ACT | INT_DMA_END_EN | INT_FIELD_EN; | |
795 | ||
796 | /* setup the base address of the overlay buffer */ | |
797 | reg_val.field_base_addr = (u32)dev->ovbuf.base; | |
798 | ||
95c5d605 AG |
799 | return 0; |
800 | } | |
801 | ||
802 | static int vidioc_s_fmt_overlay(struct file *file, void *priv, | |
803 | struct v4l2_format *f) | |
804 | { | |
805 | struct viu_fh *fh = priv; | |
806 | struct viu_dev *dev = (struct viu_dev *)fh->dev; | |
807 | unsigned long flags; | |
808 | int err; | |
809 | ||
810 | err = verify_preview(dev, &f->fmt.win); | |
811 | if (err) | |
812 | return err; | |
813 | ||
95c5d605 AG |
814 | fh->win = f->fmt.win; |
815 | ||
816 | spin_lock_irqsave(&dev->slock, flags); | |
791ae699 | 817 | viu_setup_preview(dev, fh); |
95c5d605 | 818 | spin_unlock_irqrestore(&dev->slock, flags); |
95c5d605 AG |
819 | return 0; |
820 | } | |
821 | ||
822 | static int vidioc_try_fmt_overlay(struct file *file, void *priv, | |
823 | struct v4l2_format *f) | |
824 | { | |
825 | return 0; | |
826 | } | |
827 | ||
791ae699 AG |
828 | static int vidioc_overlay(struct file *file, void *priv, unsigned int on) |
829 | { | |
830 | struct viu_fh *fh = priv; | |
831 | struct viu_dev *dev = (struct viu_dev *)fh->dev; | |
832 | unsigned long flags; | |
833 | ||
834 | if (on) { | |
835 | spin_lock_irqsave(&dev->slock, flags); | |
836 | viu_activate_overlay(dev->vr); | |
837 | dev->ovenable = 1; | |
838 | ||
839 | /* start dma */ | |
840 | viu_start_dma(dev); | |
841 | spin_unlock_irqrestore(&dev->slock, flags); | |
842 | } else { | |
843 | viu_stop_dma(dev); | |
844 | dev->ovenable = 0; | |
845 | } | |
846 | ||
847 | return 0; | |
848 | } | |
849 | ||
95c5d605 AG |
850 | int vidioc_g_fbuf(struct file *file, void *priv, struct v4l2_framebuffer *arg) |
851 | { | |
852 | struct viu_fh *fh = priv; | |
853 | struct viu_dev *dev = fh->dev; | |
854 | struct v4l2_framebuffer *fb = arg; | |
855 | ||
856 | *fb = dev->ovbuf; | |
857 | fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING; | |
858 | return 0; | |
859 | } | |
860 | ||
e6eb28c2 | 861 | int vidioc_s_fbuf(struct file *file, void *priv, const struct v4l2_framebuffer *arg) |
95c5d605 AG |
862 | { |
863 | struct viu_fh *fh = priv; | |
864 | struct viu_dev *dev = fh->dev; | |
99b32b24 | 865 | const struct v4l2_framebuffer *fb = arg; |
95c5d605 AG |
866 | struct viu_fmt *fmt; |
867 | ||
868 | if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO)) | |
869 | return -EPERM; | |
870 | ||
871 | /* check args */ | |
872 | fmt = format_by_fourcc(fb->fmt.pixelformat); | |
873 | if (fmt == NULL) | |
874 | return -EINVAL; | |
875 | ||
876 | /* ok, accept it */ | |
877 | dev->ovbuf = *fb; | |
878 | dev->ovfmt = fmt; | |
879 | if (dev->ovbuf.fmt.bytesperline == 0) { | |
880 | dev->ovbuf.fmt.bytesperline = | |
881 | dev->ovbuf.fmt.width * fmt->depth / 8; | |
882 | } | |
883 | return 0; | |
884 | } | |
885 | ||
886 | static int vidioc_reqbufs(struct file *file, void *priv, | |
887 | struct v4l2_requestbuffers *p) | |
888 | { | |
889 | struct viu_fh *fh = priv; | |
890 | ||
891 | return videobuf_reqbufs(&fh->vb_vidq, p); | |
892 | } | |
893 | ||
894 | static int vidioc_querybuf(struct file *file, void *priv, | |
895 | struct v4l2_buffer *p) | |
896 | { | |
897 | struct viu_fh *fh = priv; | |
898 | ||
899 | return videobuf_querybuf(&fh->vb_vidq, p); | |
900 | } | |
901 | ||
902 | static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *p) | |
903 | { | |
904 | struct viu_fh *fh = priv; | |
905 | ||
906 | return videobuf_qbuf(&fh->vb_vidq, p); | |
907 | } | |
908 | ||
909 | static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p) | |
910 | { | |
911 | struct viu_fh *fh = priv; | |
912 | ||
913 | return videobuf_dqbuf(&fh->vb_vidq, p, | |
914 | file->f_flags & O_NONBLOCK); | |
915 | } | |
916 | ||
917 | static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i) | |
918 | { | |
919 | struct viu_fh *fh = priv; | |
f3b1af19 | 920 | struct viu_dev *dev = fh->dev; |
95c5d605 AG |
921 | |
922 | if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
923 | return -EINVAL; | |
924 | if (fh->type != i) | |
925 | return -EINVAL; | |
926 | ||
f3b1af19 AG |
927 | if (dev->ovenable) |
928 | dev->ovenable = 0; | |
929 | ||
c3353330 AG |
930 | viu_start_dma(fh->dev); |
931 | ||
95c5d605 AG |
932 | return videobuf_streamon(&fh->vb_vidq); |
933 | } | |
934 | ||
935 | static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i) | |
936 | { | |
937 | struct viu_fh *fh = priv; | |
938 | ||
939 | if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
940 | return -EINVAL; | |
941 | if (fh->type != i) | |
942 | return -EINVAL; | |
943 | ||
c3353330 AG |
944 | viu_stop_dma(fh->dev); |
945 | ||
95c5d605 AG |
946 | return videobuf_streamoff(&fh->vb_vidq); |
947 | } | |
948 | ||
949 | #define decoder_call(viu, o, f, args...) \ | |
950 | v4l2_subdev_call(viu->decoder, o, f, ##args) | |
951 | ||
50155c25 AG |
952 | static int vidioc_querystd(struct file *file, void *priv, v4l2_std_id *std_id) |
953 | { | |
954 | struct viu_fh *fh = priv; | |
955 | ||
956 | decoder_call(fh->dev, video, querystd, std_id); | |
957 | return 0; | |
958 | } | |
959 | ||
95c5d605 AG |
960 | static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *id) |
961 | { | |
962 | struct viu_fh *fh = priv; | |
963 | ||
50155c25 | 964 | fh->dev->std = *id; |
95c5d605 AG |
965 | decoder_call(fh->dev, core, s_std, *id); |
966 | return 0; | |
967 | } | |
968 | ||
50155c25 AG |
969 | static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *std_id) |
970 | { | |
971 | struct viu_fh *fh = priv; | |
972 | ||
973 | *std_id = fh->dev->std; | |
974 | return 0; | |
975 | } | |
976 | ||
95c5d605 AG |
977 | /* only one input in this driver */ |
978 | static int vidioc_enum_input(struct file *file, void *priv, | |
979 | struct v4l2_input *inp) | |
980 | { | |
981 | struct viu_fh *fh = priv; | |
982 | ||
983 | if (inp->index != 0) | |
984 | return -EINVAL; | |
985 | ||
986 | inp->type = V4L2_INPUT_TYPE_CAMERA; | |
987 | inp->std = fh->dev->vdev->tvnorms; | |
988 | strcpy(inp->name, "Camera"); | |
989 | return 0; | |
990 | } | |
991 | ||
992 | static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) | |
993 | { | |
994 | *i = 0; | |
995 | return 0; | |
996 | } | |
997 | ||
998 | static int vidioc_s_input(struct file *file, void *priv, unsigned int i) | |
999 | { | |
1000 | struct viu_fh *fh = priv; | |
1001 | ||
1002 | if (i > 1) | |
1003 | return -EINVAL; | |
1004 | ||
1005 | decoder_call(fh->dev, video, s_routing, i, 0, 0); | |
1006 | return 0; | |
1007 | } | |
1008 | ||
1009 | /* Controls */ | |
1010 | static int vidioc_queryctrl(struct file *file, void *priv, | |
1011 | struct v4l2_queryctrl *qc) | |
1012 | { | |
1013 | int i; | |
1014 | ||
1015 | for (i = 0; i < ARRAY_SIZE(viu_qctrl); i++) { | |
1016 | if (qc->id && qc->id == viu_qctrl[i].id) { | |
1017 | memcpy(qc, &(viu_qctrl[i]), sizeof(*qc)); | |
1018 | return 0; | |
1019 | } | |
1020 | } | |
1021 | return -EINVAL; | |
1022 | } | |
1023 | ||
1024 | static int vidioc_g_ctrl(struct file *file, void *priv, | |
1025 | struct v4l2_control *ctrl) | |
1026 | { | |
1027 | int i; | |
1028 | ||
1029 | for (i = 0; i < ARRAY_SIZE(viu_qctrl); i++) { | |
1030 | if (ctrl->id == viu_qctrl[i].id) { | |
1031 | ctrl->value = qctl_regs[i]; | |
1032 | return 0; | |
1033 | } | |
1034 | } | |
1035 | return -EINVAL; | |
1036 | } | |
1037 | static int vidioc_s_ctrl(struct file *file, void *priv, | |
1038 | struct v4l2_control *ctrl) | |
1039 | { | |
1040 | int i; | |
1041 | ||
1042 | for (i = 0; i < ARRAY_SIZE(viu_qctrl); i++) { | |
1043 | if (ctrl->id == viu_qctrl[i].id) { | |
1044 | if (ctrl->value < viu_qctrl[i].minimum | |
1045 | || ctrl->value > viu_qctrl[i].maximum) | |
1046 | return -ERANGE; | |
1047 | qctl_regs[i] = ctrl->value; | |
1048 | return 0; | |
1049 | } | |
1050 | } | |
1051 | return -EINVAL; | |
1052 | } | |
1053 | ||
1054 | inline void viu_activate_next_buf(struct viu_dev *dev, | |
1055 | struct viu_dmaqueue *viuq) | |
1056 | { | |
1057 | struct viu_dmaqueue *vidq = viuq; | |
1058 | struct viu_buf *buf; | |
1059 | ||
1060 | /* launch another DMA operation for an active/queued buffer */ | |
1061 | if (!list_empty(&vidq->active)) { | |
1062 | buf = list_entry(vidq->active.next, struct viu_buf, | |
1063 | vb.queue); | |
1064 | dprintk(1, "start another queued buffer: 0x%p\n", buf); | |
1065 | buffer_activate(dev, buf); | |
1066 | } else if (!list_empty(&vidq->queued)) { | |
1067 | buf = list_entry(vidq->queued.next, struct viu_buf, | |
1068 | vb.queue); | |
1069 | list_del(&buf->vb.queue); | |
1070 | ||
1071 | dprintk(1, "start another queued buffer: 0x%p\n", buf); | |
1072 | list_add_tail(&buf->vb.queue, &vidq->active); | |
1073 | buf->vb.state = VIDEOBUF_ACTIVE; | |
1074 | buffer_activate(dev, buf); | |
1075 | } | |
1076 | } | |
1077 | ||
1078 | inline void viu_default_settings(struct viu_reg *viu_reg) | |
1079 | { | |
1080 | struct viu_reg *vr = viu_reg; | |
1081 | ||
1082 | out_be32(&vr->luminance, 0x9512A254); | |
1083 | out_be32(&vr->chroma_r, 0x03310000); | |
1084 | out_be32(&vr->chroma_g, 0x06600F38); | |
1085 | out_be32(&vr->chroma_b, 0x00000409); | |
1086 | out_be32(&vr->alpha, 0x000000ff); | |
1087 | out_be32(&vr->req_alarm, 0x00000090); | |
1088 | dprintk(1, "status reg: 0x%08x, field base: 0x%08x\n", | |
1089 | in_be32(&vr->status_cfg), in_be32(&vr->field_base_addr)); | |
1090 | } | |
1091 | ||
1092 | static void viu_overlay_intr(struct viu_dev *dev, u32 status) | |
1093 | { | |
1094 | struct viu_reg *vr = dev->vr; | |
1095 | ||
1096 | if (status & INT_DMA_END_STATUS) | |
1097 | dev->dma_done = 1; | |
1098 | ||
1099 | if (status & INT_FIELD_STATUS) { | |
1100 | if (dev->dma_done) { | |
1101 | u32 addr = reg_val.field_base_addr; | |
1102 | ||
1103 | dev->dma_done = 0; | |
1104 | if (status & FIELD_NO) | |
1105 | addr += reg_val.dma_inc; | |
1106 | ||
1107 | out_be32(&vr->field_base_addr, addr); | |
1108 | out_be32(&vr->dma_inc, reg_val.dma_inc); | |
1109 | out_be32(&vr->status_cfg, | |
1110 | (status & 0xffc0ffff) | | |
1111 | (status & INT_ALL_STATUS) | | |
1112 | reg_val.status_cfg); | |
1113 | } else if (status & INT_VSYNC_STATUS) { | |
1114 | out_be32(&vr->status_cfg, | |
1115 | (status & 0xffc0ffff) | | |
1116 | (status & INT_ALL_STATUS) | | |
1117 | reg_val.status_cfg); | |
1118 | } | |
1119 | } | |
1120 | } | |
1121 | ||
1122 | static void viu_capture_intr(struct viu_dev *dev, u32 status) | |
1123 | { | |
1124 | struct viu_dmaqueue *vidq = &dev->vidq; | |
1125 | struct viu_reg *vr = dev->vr; | |
1126 | struct viu_buf *buf; | |
1127 | int field_num; | |
1128 | int need_two; | |
1129 | int dma_done = 0; | |
1130 | ||
1131 | field_num = status & FIELD_NO; | |
1132 | need_two = V4L2_FIELD_HAS_BOTH(dev->capfield); | |
1133 | ||
1134 | if (status & INT_DMA_END_STATUS) { | |
1135 | dma_done = 1; | |
1136 | if (((field_num == 0) && (dev->field == 0)) || | |
1137 | (field_num && (dev->field == 1))) | |
1138 | dev->field++; | |
1139 | } | |
1140 | ||
1141 | if (status & INT_FIELD_STATUS) { | |
1142 | dprintk(1, "irq: field %d, done %d\n", | |
1143 | !!field_num, dma_done); | |
1144 | if (unlikely(dev->first)) { | |
1145 | if (field_num == 0) { | |
1146 | dev->first = 0; | |
1147 | dprintk(1, "activate first buf\n"); | |
1148 | viu_activate_next_buf(dev, vidq); | |
1149 | } else | |
1150 | dprintk(1, "wait field 0\n"); | |
1151 | return; | |
1152 | } | |
1153 | ||
1154 | /* setup buffer address for next dma operation */ | |
1155 | if (!list_empty(&vidq->active)) { | |
1156 | u32 addr = reg_val.field_base_addr; | |
1157 | ||
1158 | if (field_num && need_two) { | |
1159 | addr += reg_val.dma_inc; | |
1160 | dprintk(1, "field 1, 0x%lx, dev field %d\n", | |
1161 | (unsigned long)addr, dev->field); | |
1162 | } | |
1163 | out_be32(&vr->field_base_addr, addr); | |
1164 | out_be32(&vr->dma_inc, reg_val.dma_inc); | |
1165 | out_be32(&vr->status_cfg, | |
1166 | (status & 0xffc0ffff) | | |
1167 | (status & INT_ALL_STATUS) | | |
1168 | reg_val.status_cfg); | |
1169 | return; | |
1170 | } | |
1171 | } | |
1172 | ||
1173 | if (dma_done && field_num && (dev->field == 2)) { | |
1174 | dev->field = 0; | |
1175 | buf = list_entry(vidq->active.next, | |
1176 | struct viu_buf, vb.queue); | |
1177 | dprintk(1, "viu/0: [%p/%d] 0x%lx/0x%lx: dma complete\n", | |
1178 | buf, buf->vb.i, | |
1179 | (unsigned long)videobuf_to_dma_contig(&buf->vb), | |
1180 | (unsigned long)in_be32(&vr->field_base_addr)); | |
1181 | ||
1182 | if (waitqueue_active(&buf->vb.done)) { | |
1183 | list_del(&buf->vb.queue); | |
1184 | do_gettimeofday(&buf->vb.ts); | |
1185 | buf->vb.state = VIDEOBUF_DONE; | |
1186 | buf->vb.field_count++; | |
1187 | wake_up(&buf->vb.done); | |
1188 | } | |
1189 | /* activate next dma buffer */ | |
1190 | viu_activate_next_buf(dev, vidq); | |
1191 | } | |
1192 | } | |
1193 | ||
1194 | static irqreturn_t viu_intr(int irq, void *dev_id) | |
1195 | { | |
1196 | struct viu_dev *dev = (struct viu_dev *)dev_id; | |
1197 | struct viu_reg *vr = dev->vr; | |
1198 | u32 status; | |
1199 | u32 error; | |
1200 | ||
1201 | status = in_be32(&vr->status_cfg); | |
1202 | ||
1203 | if (status & INT_ERROR_STATUS) { | |
1204 | dev->irqs.error_irq++; | |
1205 | error = status & ERR_MASK; | |
1206 | if (error) | |
1207 | dprintk(1, "Err: error(%d), times:%d!\n", | |
1208 | error >> 4, dev->irqs.error_irq); | |
1209 | /* Clear interrupt error bit and error flags */ | |
1210 | out_be32(&vr->status_cfg, | |
1211 | (status & 0xffc0ffff) | INT_ERROR_STATUS); | |
1212 | } | |
1213 | ||
1214 | if (status & INT_DMA_END_STATUS) { | |
1215 | dev->irqs.dma_end_irq++; | |
1216 | dev->dma_done = 1; | |
1217 | dprintk(2, "VIU DMA end interrupt times: %d\n", | |
1218 | dev->irqs.dma_end_irq); | |
1219 | } | |
1220 | ||
1221 | if (status & INT_HSYNC_STATUS) | |
1222 | dev->irqs.hsync_irq++; | |
1223 | ||
1224 | if (status & INT_FIELD_STATUS) { | |
1225 | dev->irqs.field_irq++; | |
1226 | dprintk(2, "VIU field interrupt times: %d\n", | |
1227 | dev->irqs.field_irq); | |
1228 | } | |
1229 | ||
1230 | if (status & INT_VSTART_STATUS) | |
1231 | dev->irqs.vstart_irq++; | |
1232 | ||
1233 | if (status & INT_VSYNC_STATUS) { | |
1234 | dev->irqs.vsync_irq++; | |
1235 | dprintk(2, "VIU vsync interrupt times: %d\n", | |
1236 | dev->irqs.vsync_irq); | |
1237 | } | |
1238 | ||
1239 | /* clear all pending irqs */ | |
1240 | status = in_be32(&vr->status_cfg); | |
1241 | out_be32(&vr->status_cfg, | |
1242 | (status & 0xffc0ffff) | (status & INT_ALL_STATUS)); | |
1243 | ||
1244 | if (dev->ovenable) { | |
1245 | viu_overlay_intr(dev, status); | |
1246 | return IRQ_HANDLED; | |
1247 | } | |
1248 | ||
1249 | /* Capture mode */ | |
1250 | viu_capture_intr(dev, status); | |
1251 | return IRQ_HANDLED; | |
1252 | } | |
1253 | ||
1254 | /* | |
1255 | * File operations for the device | |
1256 | */ | |
1257 | static int viu_open(struct file *file) | |
1258 | { | |
1259 | struct video_device *vdev = video_devdata(file); | |
1260 | struct viu_dev *dev = video_get_drvdata(vdev); | |
1261 | struct viu_fh *fh; | |
1262 | struct viu_reg *vr; | |
1263 | int minor = vdev->minor; | |
1264 | u32 status_cfg; | |
1265 | int i; | |
1266 | ||
1267 | dprintk(1, "viu: open (minor=%d)\n", minor); | |
1268 | ||
1269 | dev->users++; | |
1270 | if (dev->users > 1) { | |
1271 | dev->users--; | |
1272 | return -EBUSY; | |
1273 | } | |
1274 | ||
1275 | vr = dev->vr; | |
1276 | ||
1277 | dprintk(1, "open minor=%d type=%s users=%d\n", minor, | |
1278 | v4l2_type_names[V4L2_BUF_TYPE_VIDEO_CAPTURE], dev->users); | |
1279 | ||
87cb0278 HV |
1280 | if (mutex_lock_interruptible(&dev->lock)) { |
1281 | dev->users--; | |
1282 | return -ERESTARTSYS; | |
1283 | } | |
1284 | ||
95c5d605 AG |
1285 | /* allocate and initialize per filehandle data */ |
1286 | fh = kzalloc(sizeof(*fh), GFP_KERNEL); | |
1287 | if (!fh) { | |
1288 | dev->users--; | |
87cb0278 | 1289 | mutex_unlock(&dev->lock); |
95c5d605 AG |
1290 | return -ENOMEM; |
1291 | } | |
1292 | ||
1293 | file->private_data = fh; | |
1294 | fh->dev = dev; | |
1295 | ||
1296 | fh->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
1297 | fh->fmt = format_by_fourcc(V4L2_PIX_FMT_RGB32); | |
1298 | fh->width = norm_maxw(); | |
1299 | fh->height = norm_maxh(); | |
1300 | dev->crop_current.width = fh->width; | |
1301 | dev->crop_current.height = fh->height; | |
1302 | ||
1303 | /* Put all controls at a sane state */ | |
1304 | for (i = 0; i < ARRAY_SIZE(viu_qctrl); i++) | |
1305 | qctl_regs[i] = viu_qctrl[i].default_value; | |
1306 | ||
1307 | dprintk(1, "Open: fh=0x%08lx, dev=0x%08lx, dev->vidq=0x%08lx\n", | |
1308 | (unsigned long)fh, (unsigned long)dev, | |
1309 | (unsigned long)&dev->vidq); | |
1310 | dprintk(1, "Open: list_empty queued=%d\n", | |
1311 | list_empty(&dev->vidq.queued)); | |
1312 | dprintk(1, "Open: list_empty active=%d\n", | |
1313 | list_empty(&dev->vidq.active)); | |
1314 | ||
1315 | viu_default_settings(vr); | |
1316 | ||
1317 | status_cfg = in_be32(&vr->status_cfg); | |
1318 | out_be32(&vr->status_cfg, | |
1319 | status_cfg & ~(INT_VSYNC_EN | INT_HSYNC_EN | | |
1320 | INT_FIELD_EN | INT_VSTART_EN | | |
1321 | INT_DMA_END_EN | INT_ERROR_EN | INT_ECC_EN)); | |
1322 | ||
1323 | status_cfg = in_be32(&vr->status_cfg); | |
1324 | out_be32(&vr->status_cfg, status_cfg | INT_ALL_STATUS); | |
1325 | ||
1326 | spin_lock_init(&fh->vbq_lock); | |
1327 | videobuf_queue_dma_contig_init(&fh->vb_vidq, &viu_video_qops, | |
1328 | dev->dev, &fh->vbq_lock, | |
1329 | fh->type, V4L2_FIELD_INTERLACED, | |
2f970006 AG |
1330 | sizeof(struct viu_buf), fh, |
1331 | &fh->dev->lock); | |
87cb0278 | 1332 | mutex_unlock(&dev->lock); |
95c5d605 AG |
1333 | return 0; |
1334 | } | |
1335 | ||
1336 | static ssize_t viu_read(struct file *file, char __user *data, size_t count, | |
1337 | loff_t *ppos) | |
1338 | { | |
1339 | struct viu_fh *fh = file->private_data; | |
1340 | struct viu_dev *dev = fh->dev; | |
1341 | int ret = 0; | |
1342 | ||
1343 | dprintk(2, "%s\n", __func__); | |
1344 | if (dev->ovenable) | |
1345 | dev->ovenable = 0; | |
1346 | ||
1347 | if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { | |
87cb0278 HV |
1348 | if (mutex_lock_interruptible(&dev->lock)) |
1349 | return -ERESTARTSYS; | |
95c5d605 AG |
1350 | viu_start_dma(dev); |
1351 | ret = videobuf_read_stream(&fh->vb_vidq, data, count, | |
1352 | ppos, 0, file->f_flags & O_NONBLOCK); | |
87cb0278 | 1353 | mutex_unlock(&dev->lock); |
95c5d605 AG |
1354 | return ret; |
1355 | } | |
1356 | return 0; | |
1357 | } | |
1358 | ||
1359 | static unsigned int viu_poll(struct file *file, struct poll_table_struct *wait) | |
1360 | { | |
1361 | struct viu_fh *fh = file->private_data; | |
1362 | struct videobuf_queue *q = &fh->vb_vidq; | |
87cb0278 HV |
1363 | struct viu_dev *dev = fh->dev; |
1364 | unsigned int res; | |
95c5d605 AG |
1365 | |
1366 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != fh->type) | |
1367 | return POLLERR; | |
1368 | ||
87cb0278 HV |
1369 | mutex_lock(&dev->lock); |
1370 | res = videobuf_poll_stream(file, q, wait); | |
1371 | mutex_unlock(&dev->lock); | |
1372 | return res; | |
95c5d605 AG |
1373 | } |
1374 | ||
1375 | static int viu_release(struct file *file) | |
1376 | { | |
1377 | struct viu_fh *fh = file->private_data; | |
1378 | struct viu_dev *dev = fh->dev; | |
1379 | int minor = video_devdata(file)->minor; | |
1380 | ||
87cb0278 | 1381 | mutex_lock(&dev->lock); |
95c5d605 AG |
1382 | viu_stop_dma(dev); |
1383 | videobuf_stop(&fh->vb_vidq); | |
c3353330 | 1384 | videobuf_mmap_free(&fh->vb_vidq); |
87cb0278 | 1385 | mutex_unlock(&dev->lock); |
95c5d605 AG |
1386 | |
1387 | kfree(fh); | |
1388 | ||
1389 | dev->users--; | |
1390 | dprintk(1, "close (minor=%d, users=%d)\n", | |
1391 | minor, dev->users); | |
1392 | return 0; | |
1393 | } | |
1394 | ||
1395 | void viu_reset(struct viu_reg *reg) | |
1396 | { | |
1397 | out_be32(®->status_cfg, 0); | |
1398 | out_be32(®->luminance, 0x9512a254); | |
1399 | out_be32(®->chroma_r, 0x03310000); | |
1400 | out_be32(®->chroma_g, 0x06600f38); | |
1401 | out_be32(®->chroma_b, 0x00000409); | |
1402 | out_be32(®->field_base_addr, 0); | |
1403 | out_be32(®->dma_inc, 0); | |
1404 | out_be32(®->picture_count, 0x01e002d0); | |
1405 | out_be32(®->req_alarm, 0x00000090); | |
1406 | out_be32(®->alpha, 0x000000ff); | |
1407 | } | |
1408 | ||
1409 | static int viu_mmap(struct file *file, struct vm_area_struct *vma) | |
1410 | { | |
1411 | struct viu_fh *fh = file->private_data; | |
87cb0278 | 1412 | struct viu_dev *dev = fh->dev; |
95c5d605 AG |
1413 | int ret; |
1414 | ||
1415 | dprintk(1, "mmap called, vma=0x%08lx\n", (unsigned long)vma); | |
1416 | ||
87cb0278 HV |
1417 | if (mutex_lock_interruptible(&dev->lock)) |
1418 | return -ERESTARTSYS; | |
95c5d605 | 1419 | ret = videobuf_mmap_mapper(&fh->vb_vidq, vma); |
87cb0278 | 1420 | mutex_unlock(&dev->lock); |
95c5d605 AG |
1421 | |
1422 | dprintk(1, "vma start=0x%08lx, size=%ld, ret=%d\n", | |
1423 | (unsigned long)vma->vm_start, | |
1424 | (unsigned long)vma->vm_end-(unsigned long)vma->vm_start, | |
1425 | ret); | |
1426 | ||
1427 | return ret; | |
1428 | } | |
1429 | ||
1430 | static struct v4l2_file_operations viu_fops = { | |
1431 | .owner = THIS_MODULE, | |
1432 | .open = viu_open, | |
1433 | .release = viu_release, | |
1434 | .read = viu_read, | |
1435 | .poll = viu_poll, | |
2f970006 | 1436 | .unlocked_ioctl = video_ioctl2, /* V4L2 ioctl handler */ |
95c5d605 AG |
1437 | .mmap = viu_mmap, |
1438 | }; | |
1439 | ||
1440 | static const struct v4l2_ioctl_ops viu_ioctl_ops = { | |
1441 | .vidioc_querycap = vidioc_querycap, | |
1442 | .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt, | |
1443 | .vidioc_g_fmt_vid_cap = vidioc_g_fmt_cap, | |
1444 | .vidioc_try_fmt_vid_cap = vidioc_try_fmt_cap, | |
1445 | .vidioc_s_fmt_vid_cap = vidioc_s_fmt_cap, | |
1446 | .vidioc_enum_fmt_vid_overlay = vidioc_enum_fmt, | |
1447 | .vidioc_g_fmt_vid_overlay = vidioc_g_fmt_overlay, | |
1448 | .vidioc_try_fmt_vid_overlay = vidioc_try_fmt_overlay, | |
1449 | .vidioc_s_fmt_vid_overlay = vidioc_s_fmt_overlay, | |
791ae699 | 1450 | .vidioc_overlay = vidioc_overlay, |
95c5d605 AG |
1451 | .vidioc_g_fbuf = vidioc_g_fbuf, |
1452 | .vidioc_s_fbuf = vidioc_s_fbuf, | |
1453 | .vidioc_reqbufs = vidioc_reqbufs, | |
1454 | .vidioc_querybuf = vidioc_querybuf, | |
1455 | .vidioc_qbuf = vidioc_qbuf, | |
1456 | .vidioc_dqbuf = vidioc_dqbuf, | |
50155c25 | 1457 | .vidioc_g_std = vidioc_g_std, |
95c5d605 | 1458 | .vidioc_s_std = vidioc_s_std, |
50155c25 | 1459 | .vidioc_querystd = vidioc_querystd, |
95c5d605 AG |
1460 | .vidioc_enum_input = vidioc_enum_input, |
1461 | .vidioc_g_input = vidioc_g_input, | |
1462 | .vidioc_s_input = vidioc_s_input, | |
1463 | .vidioc_queryctrl = vidioc_queryctrl, | |
1464 | .vidioc_g_ctrl = vidioc_g_ctrl, | |
1465 | .vidioc_s_ctrl = vidioc_s_ctrl, | |
1466 | .vidioc_streamon = vidioc_streamon, | |
1467 | .vidioc_streamoff = vidioc_streamoff, | |
1468 | }; | |
1469 | ||
1470 | static struct video_device viu_template = { | |
1471 | .name = "FSL viu", | |
1472 | .fops = &viu_fops, | |
1473 | .minor = -1, | |
1474 | .ioctl_ops = &viu_ioctl_ops, | |
1475 | .release = video_device_release, | |
1476 | ||
1477 | .tvnorms = V4L2_STD_NTSC_M | V4L2_STD_PAL, | |
1478 | .current_norm = V4L2_STD_NTSC_M, | |
1479 | }; | |
1480 | ||
4c62e976 | 1481 | static int viu_of_probe(struct platform_device *op) |
95c5d605 AG |
1482 | { |
1483 | struct viu_dev *viu_dev; | |
1484 | struct video_device *vdev; | |
1485 | struct resource r; | |
1486 | struct viu_reg __iomem *viu_regs; | |
1487 | struct i2c_adapter *ad; | |
1488 | int ret, viu_irq; | |
1489 | ||
1490 | ret = of_address_to_resource(op->dev.of_node, 0, &r); | |
1491 | if (ret) { | |
1492 | dev_err(&op->dev, "Can't parse device node resource\n"); | |
1493 | return -ENODEV; | |
1494 | } | |
1495 | ||
1496 | viu_irq = irq_of_parse_and_map(op->dev.of_node, 0); | |
1497 | if (viu_irq == NO_IRQ) { | |
1498 | dev_err(&op->dev, "Error while mapping the irq\n"); | |
1499 | return -EINVAL; | |
1500 | } | |
1501 | ||
1502 | /* request mem region */ | |
1503 | if (!devm_request_mem_region(&op->dev, r.start, | |
1504 | sizeof(struct viu_reg), DRV_NAME)) { | |
1505 | dev_err(&op->dev, "Error while requesting mem region\n"); | |
1506 | ret = -EBUSY; | |
1507 | goto err; | |
1508 | } | |
1509 | ||
1510 | /* remap registers */ | |
1511 | viu_regs = devm_ioremap(&op->dev, r.start, sizeof(struct viu_reg)); | |
1512 | if (!viu_regs) { | |
1513 | dev_err(&op->dev, "Can't map register set\n"); | |
1514 | ret = -ENOMEM; | |
1515 | goto err; | |
1516 | } | |
1517 | ||
1518 | /* Prepare our private structure */ | |
1519 | viu_dev = devm_kzalloc(&op->dev, sizeof(struct viu_dev), GFP_ATOMIC); | |
1520 | if (!viu_dev) { | |
1521 | dev_err(&op->dev, "Can't allocate private structure\n"); | |
1522 | ret = -ENOMEM; | |
1523 | goto err; | |
1524 | } | |
1525 | ||
1526 | viu_dev->vr = viu_regs; | |
1527 | viu_dev->irq = viu_irq; | |
1528 | viu_dev->dev = &op->dev; | |
1529 | ||
1530 | /* init video dma queues */ | |
1531 | INIT_LIST_HEAD(&viu_dev->vidq.active); | |
1532 | INIT_LIST_HEAD(&viu_dev->vidq.queued); | |
1533 | ||
95c5d605 AG |
1534 | snprintf(viu_dev->v4l2_dev.name, |
1535 | sizeof(viu_dev->v4l2_dev.name), "%s", "VIU"); | |
1536 | ret = v4l2_device_register(viu_dev->dev, &viu_dev->v4l2_dev); | |
1537 | if (ret < 0) { | |
1538 | dev_err(&op->dev, "v4l2_device_register() failed: %d\n", ret); | |
1539 | goto err; | |
1540 | } | |
1541 | ||
1542 | ad = i2c_get_adapter(0); | |
1543 | viu_dev->decoder = v4l2_i2c_new_subdev(&viu_dev->v4l2_dev, ad, | |
9a1f8b34 | 1544 | "saa7113", VIU_VIDEO_DECODER_ADDR, NULL); |
95c5d605 AG |
1545 | |
1546 | viu_dev->vidq.timeout.function = viu_vid_timeout; | |
1547 | viu_dev->vidq.timeout.data = (unsigned long)viu_dev; | |
1548 | init_timer(&viu_dev->vidq.timeout); | |
1549 | viu_dev->first = 1; | |
1550 | ||
1551 | /* Allocate memory for video device */ | |
1552 | vdev = video_device_alloc(); | |
1553 | if (vdev == NULL) { | |
1554 | ret = -ENOMEM; | |
1555 | goto err_vdev; | |
1556 | } | |
1557 | ||
1558 | memcpy(vdev, &viu_template, sizeof(viu_template)); | |
1559 | ||
1560 | vdev->v4l2_dev = &viu_dev->v4l2_dev; | |
1561 | ||
1562 | viu_dev->vdev = vdev; | |
1563 | ||
2f970006 AG |
1564 | /* initialize locks */ |
1565 | mutex_init(&viu_dev->lock); | |
1566 | viu_dev->vdev->lock = &viu_dev->lock; | |
1567 | spin_lock_init(&viu_dev->slock); | |
1568 | ||
95c5d605 AG |
1569 | video_set_drvdata(viu_dev->vdev, viu_dev); |
1570 | ||
2f970006 AG |
1571 | mutex_lock(&viu_dev->lock); |
1572 | ||
95c5d605 AG |
1573 | ret = video_register_device(viu_dev->vdev, VFL_TYPE_GRABBER, -1); |
1574 | if (ret < 0) { | |
1575 | video_device_release(viu_dev->vdev); | |
1576 | goto err_vdev; | |
1577 | } | |
1578 | ||
1579 | /* enable VIU clock */ | |
1580 | viu_dev->clk = clk_get(&op->dev, "viu_clk"); | |
1581 | if (IS_ERR(viu_dev->clk)) { | |
1582 | dev_err(&op->dev, "failed to find the clock module!\n"); | |
1583 | ret = -ENODEV; | |
1584 | goto err_clk; | |
1585 | } else { | |
1586 | clk_enable(viu_dev->clk); | |
1587 | } | |
1588 | ||
1589 | /* reset VIU module */ | |
1590 | viu_reset(viu_dev->vr); | |
1591 | ||
1592 | /* install interrupt handler */ | |
1593 | if (request_irq(viu_dev->irq, viu_intr, 0, "viu", (void *)viu_dev)) { | |
1594 | dev_err(&op->dev, "Request VIU IRQ failed.\n"); | |
1595 | ret = -ENODEV; | |
1596 | goto err_irq; | |
1597 | } | |
1598 | ||
2f970006 AG |
1599 | mutex_unlock(&viu_dev->lock); |
1600 | ||
95c5d605 AG |
1601 | dev_info(&op->dev, "Freescale VIU Video Capture Board\n"); |
1602 | return ret; | |
1603 | ||
1604 | err_irq: | |
1605 | clk_disable(viu_dev->clk); | |
1606 | clk_put(viu_dev->clk); | |
1607 | err_clk: | |
1608 | video_unregister_device(viu_dev->vdev); | |
1609 | err_vdev: | |
2f970006 | 1610 | mutex_unlock(&viu_dev->lock); |
95c5d605 AG |
1611 | i2c_put_adapter(ad); |
1612 | v4l2_device_unregister(&viu_dev->v4l2_dev); | |
1613 | err: | |
1614 | irq_dispose_mapping(viu_irq); | |
1615 | return ret; | |
1616 | } | |
1617 | ||
4c62e976 | 1618 | static int viu_of_remove(struct platform_device *op) |
95c5d605 AG |
1619 | { |
1620 | struct v4l2_device *v4l2_dev = dev_get_drvdata(&op->dev); | |
1621 | struct viu_dev *dev = container_of(v4l2_dev, struct viu_dev, v4l2_dev); | |
1622 | struct v4l2_subdev *sdev = list_entry(v4l2_dev->subdevs.next, | |
1623 | struct v4l2_subdev, list); | |
1624 | struct i2c_client *client = v4l2_get_subdevdata(sdev); | |
1625 | ||
1626 | free_irq(dev->irq, (void *)dev); | |
1627 | irq_dispose_mapping(dev->irq); | |
1628 | ||
1629 | clk_disable(dev->clk); | |
1630 | clk_put(dev->clk); | |
1631 | ||
1632 | video_unregister_device(dev->vdev); | |
1633 | i2c_put_adapter(client->adapter); | |
1634 | v4l2_device_unregister(&dev->v4l2_dev); | |
1635 | return 0; | |
1636 | } | |
1637 | ||
1638 | #ifdef CONFIG_PM | |
2dc11581 | 1639 | static int viu_suspend(struct platform_device *op, pm_message_t state) |
95c5d605 AG |
1640 | { |
1641 | struct v4l2_device *v4l2_dev = dev_get_drvdata(&op->dev); | |
1642 | struct viu_dev *dev = container_of(v4l2_dev, struct viu_dev, v4l2_dev); | |
1643 | ||
1644 | clk_disable(dev->clk); | |
1645 | return 0; | |
1646 | } | |
1647 | ||
2dc11581 | 1648 | static int viu_resume(struct platform_device *op) |
95c5d605 AG |
1649 | { |
1650 | struct v4l2_device *v4l2_dev = dev_get_drvdata(&op->dev); | |
1651 | struct viu_dev *dev = container_of(v4l2_dev, struct viu_dev, v4l2_dev); | |
1652 | ||
1653 | clk_enable(dev->clk); | |
1654 | return 0; | |
1655 | } | |
1656 | #endif | |
1657 | ||
1658 | /* | |
1659 | * Initialization and module stuff | |
1660 | */ | |
1661 | static struct of_device_id mpc512x_viu_of_match[] = { | |
1662 | { | |
1663 | .compatible = "fsl,mpc5121-viu", | |
1664 | }, | |
1665 | {}, | |
1666 | }; | |
1667 | MODULE_DEVICE_TABLE(of, mpc512x_viu_of_match); | |
1668 | ||
1c48a5c9 | 1669 | static struct platform_driver viu_of_platform_driver = { |
95c5d605 | 1670 | .probe = viu_of_probe, |
4c62e976 | 1671 | .remove = viu_of_remove, |
95c5d605 AG |
1672 | #ifdef CONFIG_PM |
1673 | .suspend = viu_suspend, | |
1674 | .resume = viu_resume, | |
1675 | #endif | |
1676 | .driver = { | |
1677 | .name = DRV_NAME, | |
1678 | .owner = THIS_MODULE, | |
1679 | .of_match_table = mpc512x_viu_of_match, | |
1680 | }, | |
1681 | }; | |
1682 | ||
1d6629b1 | 1683 | module_platform_driver(viu_of_platform_driver); |
95c5d605 AG |
1684 | |
1685 | MODULE_DESCRIPTION("Freescale Video-In(VIU)"); | |
1686 | MODULE_AUTHOR("Hongjun Chen"); | |
1687 | MODULE_LICENSE("GPL"); | |
64dc3c1a | 1688 | MODULE_VERSION(VIU_VERSION); |