aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--drivers/media/video/Kconfig8
-rw-r--r--drivers/media/video/Makefile1
-rw-r--r--drivers/media/video/sh_mobile_ceu_camera.c657
-rw-r--r--include/media/sh_mobile_ceu.h12
4 files changed, 678 insertions, 0 deletions
diff --git a/drivers/media/video/Kconfig b/drivers/media/video/Kconfig
index 9a4265e5cd84..fdeaff257caf 100644
--- a/drivers/media/video/Kconfig
+++ b/drivers/media/video/Kconfig
@@ -969,4 +969,12 @@ config VIDEO_PXA27x
969 ---help--- 969 ---help---
970 This is a v4l2 driver for the PXA27x Quick Capture Interface 970 This is a v4l2 driver for the PXA27x Quick Capture Interface
971 971
972config VIDEO_SH_MOBILE_CEU
973 tristate "SuperH Mobile CEU Interface driver"
974 depends on VIDEO_DEV
975 select SOC_CAMERA
976 select VIDEOBUF_DMA_CONTIG
977 ---help---
978 This is a v4l2 driver for the SuperH Mobile CEU Interface
979
972endif # VIDEO_CAPTURE_DRIVERS 980endif # VIDEO_CAPTURE_DRIVERS
diff --git a/drivers/media/video/Makefile b/drivers/media/video/Makefile
index 3106eaa893d6..6dd51b01ef90 100644
--- a/drivers/media/video/Makefile
+++ b/drivers/media/video/Makefile
@@ -133,6 +133,7 @@ obj-$(CONFIG_VIDEO_VIVI) += vivi.o
133obj-$(CONFIG_VIDEO_CX23885) += cx23885/ 133obj-$(CONFIG_VIDEO_CX23885) += cx23885/
134 134
135obj-$(CONFIG_VIDEO_PXA27x) += pxa_camera.o 135obj-$(CONFIG_VIDEO_PXA27x) += pxa_camera.o
136obj-$(CONFIG_VIDEO_SH_MOBILE_CEU) += sh_mobile_ceu_camera.o
136obj-$(CONFIG_SOC_CAMERA) += soc_camera.o 137obj-$(CONFIG_SOC_CAMERA) += soc_camera.o
137obj-$(CONFIG_SOC_CAMERA_MT9M001) += mt9m001.o 138obj-$(CONFIG_SOC_CAMERA_MT9M001) += mt9m001.o
138obj-$(CONFIG_SOC_CAMERA_MT9V022) += mt9v022.o 139obj-$(CONFIG_SOC_CAMERA_MT9V022) += mt9v022.o
diff --git a/drivers/media/video/sh_mobile_ceu_camera.c b/drivers/media/video/sh_mobile_ceu_camera.c
new file mode 100644
index 000000000000..6560ff496989
--- /dev/null
+++ b/drivers/media/video/sh_mobile_ceu_camera.c
@@ -0,0 +1,657 @@
1/*
2 * V4L2 Driver for SuperH Mobile CEU interface
3 *
4 * Copyright (C) 2008 Magnus Damm
5 *
6 * Based on V4L2 Driver for PXA camera host - "pxa_camera.c",
7 *
8 * Copyright (C) 2006, Sascha Hauer, Pengutronix
9 * Copyright (C) 2008, Guennadi Liakhovetski <kernel@pengutronix.de>
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
15 */
16
17#include <linux/init.h>
18#include <linux/module.h>
19#include <linux/io.h>
20#include <linux/delay.h>
21#include <linux/dma-mapping.h>
22#include <linux/errno.h>
23#include <linux/fs.h>
24#include <linux/interrupt.h>
25#include <linux/kernel.h>
26#include <linux/mm.h>
27#include <linux/moduleparam.h>
28#include <linux/time.h>
29#include <linux/version.h>
30#include <linux/device.h>
31#include <linux/platform_device.h>
32#include <linux/mutex.h>
33#include <linux/videodev2.h>
34
35#include <media/v4l2-common.h>
36#include <media/v4l2-dev.h>
37#include <media/soc_camera.h>
38#include <media/sh_mobile_ceu.h>
39#include <media/videobuf-dma-contig.h>
40
41/* register offsets for sh7722 / sh7723 */
42
43#define CAPSR 0x00
44#define CAPCR 0x04
45#define CAMCR 0x08
46#define CMCYR 0x0c
47#define CAMOR 0x10
48#define CAPWR 0x14
49#define CAIFR 0x18
50#define CSTCR 0x20 /* not on sh7723 */
51#define CSECR 0x24 /* not on sh7723 */
52#define CRCNTR 0x28
53#define CRCMPR 0x2c
54#define CFLCR 0x30
55#define CFSZR 0x34
56#define CDWDR 0x38
57#define CDAYR 0x3c
58#define CDACR 0x40
59#define CDBYR 0x44
60#define CDBCR 0x48
61#define CBDSR 0x4c
62#define CFWCR 0x5c
63#define CLFCR 0x60
64#define CDOCR 0x64
65#define CDDCR 0x68
66#define CDDAR 0x6c
67#define CEIER 0x70
68#define CETCR 0x74
69#define CSTSR 0x7c
70#define CSRTR 0x80
71#define CDSSR 0x84
72#define CDAYR2 0x90
73#define CDACR2 0x94
74#define CDBYR2 0x98
75#define CDBCR2 0x9c
76
77static DEFINE_MUTEX(camera_lock);
78
79/* per video frame buffer */
80struct sh_mobile_ceu_buffer {
81 struct videobuf_buffer vb; /* v4l buffer must be first */
82 const struct soc_camera_data_format *fmt;
83};
84
85struct sh_mobile_ceu_dev {
86 struct device *dev;
87 struct soc_camera_host ici;
88 struct soc_camera_device *icd;
89
90 unsigned int irq;
91 void __iomem *base;
92 unsigned long video_limit;
93
94 spinlock_t lock;
95 struct list_head capture;
96 struct videobuf_buffer *active;
97
98 struct sh_mobile_ceu_info *pdata;
99};
100
101static void ceu_write(struct sh_mobile_ceu_dev *priv,
102 unsigned long reg_offs, unsigned long data)
103{
104 iowrite32(data, priv->base + reg_offs);
105}
106
107static unsigned long ceu_read(struct sh_mobile_ceu_dev *priv,
108 unsigned long reg_offs)
109{
110 return ioread32(priv->base + reg_offs);
111}
112
113/*
114 * Videobuf operations
115 */
116static int sh_mobile_ceu_videobuf_setup(struct videobuf_queue *vq,
117 unsigned int *count,
118 unsigned int *size)
119{
120 struct soc_camera_device *icd = vq->priv_data;
121 struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
122 struct sh_mobile_ceu_dev *pcdev = ici->priv;
123 int bytes_per_pixel = (icd->current_fmt->depth + 7) >> 3;
124
125 *size = PAGE_ALIGN(icd->width * icd->height * bytes_per_pixel);
126
127 if (0 == *count)
128 *count = 2;
129
130 if (pcdev->video_limit) {
131 while (*size * *count > pcdev->video_limit)
132 (*count)--;
133 }
134
135 dev_dbg(&icd->dev, "count=%d, size=%d\n", *count, *size);
136
137 return 0;
138}
139
140static void free_buffer(struct videobuf_queue *vq,
141 struct sh_mobile_ceu_buffer *buf)
142{
143 struct soc_camera_device *icd = vq->priv_data;
144
145 dev_dbg(&icd->dev, "%s (vb=0x%p) 0x%08lx %d\n", __func__,
146 &buf->vb, buf->vb.baddr, buf->vb.bsize);
147
148 if (in_interrupt())
149 BUG();
150
151 videobuf_dma_contig_free(vq, &buf->vb);
152 dev_dbg(&icd->dev, "%s freed\n", __func__);
153 buf->vb.state = VIDEOBUF_NEEDS_INIT;
154}
155
156static void sh_mobile_ceu_capture(struct sh_mobile_ceu_dev *pcdev)
157{
158 ceu_write(pcdev, CEIER, ceu_read(pcdev, CEIER) & ~1);
159 ceu_write(pcdev, CETCR, ~ceu_read(pcdev, CETCR) & 0x0317f313);
160 ceu_write(pcdev, CEIER, ceu_read(pcdev, CEIER) | 1);
161
162 ceu_write(pcdev, CAPCR, ceu_read(pcdev, CAPCR) & ~0x10000);
163
164 ceu_write(pcdev, CETCR, 0x0317f313 ^ 0x10);
165
166 if (pcdev->active) {
167 ceu_write(pcdev, CDAYR, videobuf_to_dma_contig(pcdev->active));
168 ceu_write(pcdev, CAPSR, 0x1); /* start capture */
169 }
170}
171
172static int sh_mobile_ceu_videobuf_prepare(struct videobuf_queue *vq,
173 struct videobuf_buffer *vb,
174 enum v4l2_field field)
175{
176 struct soc_camera_device *icd = vq->priv_data;
177 struct sh_mobile_ceu_buffer *buf;
178 int ret;
179
180 buf = container_of(vb, struct sh_mobile_ceu_buffer, vb);
181
182 dev_dbg(&icd->dev, "%s (vb=0x%p) 0x%08lx %d\n", __func__,
183 vb, vb->baddr, vb->bsize);
184
185 /* Added list head initialization on alloc */
186 WARN_ON(!list_empty(&vb->queue));
187
188#ifdef DEBUG
189 /* This can be useful if you want to see if we actually fill
190 * the buffer with something */
191 memset((void *)vb->baddr, 0xaa, vb->bsize);
192#endif
193
194 BUG_ON(NULL == icd->current_fmt);
195
196 if (buf->fmt != icd->current_fmt ||
197 vb->width != icd->width ||
198 vb->height != icd->height ||
199 vb->field != field) {
200 buf->fmt = icd->current_fmt;
201 vb->width = icd->width;
202 vb->height = icd->height;
203 vb->field = field;
204 vb->state = VIDEOBUF_NEEDS_INIT;
205 }
206
207 vb->size = vb->width * vb->height * ((buf->fmt->depth + 7) >> 3);
208 if (0 != vb->baddr && vb->bsize < vb->size) {
209 ret = -EINVAL;
210 goto out;
211 }
212
213 if (vb->state == VIDEOBUF_NEEDS_INIT) {
214 ret = videobuf_iolock(vq, vb, NULL);
215 if (ret)
216 goto fail;
217 vb->state = VIDEOBUF_PREPARED;
218 }
219
220 return 0;
221fail:
222 free_buffer(vq, buf);
223out:
224 return ret;
225}
226
227static void sh_mobile_ceu_videobuf_queue(struct videobuf_queue *vq,
228 struct videobuf_buffer *vb)
229{
230 struct soc_camera_device *icd = vq->priv_data;
231 struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
232 struct sh_mobile_ceu_dev *pcdev = ici->priv;
233 unsigned long flags;
234
235 dev_dbg(&icd->dev, "%s (vb=0x%p) 0x%08lx %d\n", __func__,
236 vb, vb->baddr, vb->bsize);
237
238 vb->state = VIDEOBUF_ACTIVE;
239 spin_lock_irqsave(&pcdev->lock, flags);
240 list_add_tail(&vb->queue, &pcdev->capture);
241
242 if (!pcdev->active) {
243 pcdev->active = vb;
244 sh_mobile_ceu_capture(pcdev);
245 }
246
247 spin_unlock_irqrestore(&pcdev->lock, flags);
248}
249
250static void sh_mobile_ceu_videobuf_release(struct videobuf_queue *vq,
251 struct videobuf_buffer *vb)
252{
253 free_buffer(vq, container_of(vb, struct sh_mobile_ceu_buffer, vb));
254}
255
256static struct videobuf_queue_ops sh_mobile_ceu_videobuf_ops = {
257 .buf_setup = sh_mobile_ceu_videobuf_setup,
258 .buf_prepare = sh_mobile_ceu_videobuf_prepare,
259 .buf_queue = sh_mobile_ceu_videobuf_queue,
260 .buf_release = sh_mobile_ceu_videobuf_release,
261};
262
263static irqreturn_t sh_mobile_ceu_irq(int irq, void *data)
264{
265 struct sh_mobile_ceu_dev *pcdev = data;
266 struct videobuf_buffer *vb;
267 unsigned long flags;
268
269 spin_lock_irqsave(&pcdev->lock, flags);
270
271 vb = pcdev->active;
272 list_del_init(&vb->queue);
273
274 if (!list_empty(&pcdev->capture))
275 pcdev->active = list_entry(pcdev->capture.next,
276 struct videobuf_buffer, queue);
277 else
278 pcdev->active = NULL;
279
280 sh_mobile_ceu_capture(pcdev);
281
282 vb->state = VIDEOBUF_DONE;
283 do_gettimeofday(&vb->ts);
284 vb->field_count++;
285 wake_up(&vb->done);
286 spin_unlock_irqrestore(&pcdev->lock, flags);
287
288 return IRQ_HANDLED;
289}
290
291static int sh_mobile_ceu_add_device(struct soc_camera_device *icd)
292{
293 struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
294 struct sh_mobile_ceu_dev *pcdev = ici->priv;
295 int ret = -EBUSY;
296
297 mutex_lock(&camera_lock);
298
299 if (pcdev->icd)
300 goto err;
301
302 dev_info(&icd->dev,
303 "SuperH Mobile CEU driver attached to camera %d\n",
304 icd->devnum);
305
306 if (pcdev->pdata->enable_camera)
307 pcdev->pdata->enable_camera();
308
309 ret = icd->ops->init(icd);
310 if (ret)
311 goto err;
312
313 ceu_write(pcdev, CAPSR, 1 << 16); /* reset */
314 while (ceu_read(pcdev, CSTSR) & 1)
315 msleep(1);
316
317 pcdev->icd = icd;
318err:
319 mutex_unlock(&camera_lock);
320
321 return ret;
322}
323
324static void sh_mobile_ceu_remove_device(struct soc_camera_device *icd)
325{
326 struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
327 struct sh_mobile_ceu_dev *pcdev = ici->priv;
328
329 BUG_ON(icd != pcdev->icd);
330
331 /* disable capture, disable interrupts */
332 ceu_write(pcdev, CEIER, 0);
333 ceu_write(pcdev, CAPSR, 1 << 16); /* reset */
334 icd->ops->release(icd);
335 if (pcdev->pdata->disable_camera)
336 pcdev->pdata->disable_camera();
337
338 dev_info(&icd->dev,
339 "SuperH Mobile CEU driver detached from camera %d\n",
340 icd->devnum);
341
342 pcdev->icd = NULL;
343}
344
345static int sh_mobile_ceu_set_bus_param(struct soc_camera_device *icd,
346 __u32 pixfmt)
347{
348 struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
349 struct sh_mobile_ceu_dev *pcdev = ici->priv;
350 int ret, buswidth, width, cfszr_width, cdwdr_width;
351 unsigned long camera_flags, common_flags, value;
352
353 camera_flags = icd->ops->query_bus_param(icd);
354 common_flags = soc_camera_bus_param_compatible(camera_flags,
355 pcdev->pdata->flags);
356 if (!common_flags)
357 return -EINVAL;
358
359 ret = icd->ops->set_bus_param(icd, common_flags);
360 if (ret < 0)
361 return ret;
362
363 switch (common_flags & SOCAM_DATAWIDTH_MASK) {
364 case SOCAM_DATAWIDTH_8:
365 buswidth = 8;
366 break;
367 case SOCAM_DATAWIDTH_16:
368 buswidth = 16;
369 break;
370 default:
371 return -EINVAL;
372 }
373
374 ceu_write(pcdev, CRCNTR, 0);
375 ceu_write(pcdev, CRCMPR, 0);
376
377 value = 0x00000010;
378 value |= (common_flags & SOCAM_VSYNC_ACTIVE_LOW) ? (1 << 1) : 0;
379 value |= (common_flags & SOCAM_HSYNC_ACTIVE_LOW) ? (1 << 0) : 0;
380 value |= (buswidth == 16) ? (1 << 12) : 0;
381 ceu_write(pcdev, CAMCR, value);
382
383 ceu_write(pcdev, CAPCR, 0x00300000);
384 ceu_write(pcdev, CAIFR, 0);
385
386 mdelay(1);
387
388 width = icd->width * (icd->current_fmt->depth / 8);
389 width = (buswidth == 16) ? width / 2 : width;
390 cfszr_width = (buswidth == 8) ? width / 2 : width;
391 cdwdr_width = (buswidth == 16) ? width * 2 : width;
392
393 ceu_write(pcdev, CAMOR, 0);
394 ceu_write(pcdev, CAPWR, (icd->height << 16) | width);
395 ceu_write(pcdev, CFLCR, 0); /* data fetch mode - no scaling */
396 ceu_write(pcdev, CFSZR, (icd->height << 16) | cfszr_width);
397 ceu_write(pcdev, CLFCR, 0); /* data fetch mode - no lowpass filter */
398 ceu_write(pcdev, CDOCR, 0x00000016);
399
400 ceu_write(pcdev, CDWDR, cdwdr_width);
401 ceu_write(pcdev, CFWCR, 0); /* keep "datafetch firewall" disabled */
402
403 /* not in bundle mode: skip CBDSR, CDAYR2, CDACR2, CDBYR2, CDBCR2 */
404 /* in data fetch mode: no need for CDACR, CDBYR, CDBCR */
405
406 return 0;
407}
408
409static int sh_mobile_ceu_try_bus_param(struct soc_camera_device *icd,
410 __u32 pixfmt)
411{
412 struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
413 struct sh_mobile_ceu_dev *pcdev = ici->priv;
414 unsigned long camera_flags, common_flags;
415
416 camera_flags = icd->ops->query_bus_param(icd);
417 common_flags = soc_camera_bus_param_compatible(camera_flags,
418 pcdev->pdata->flags);
419 if (!common_flags)
420 return -EINVAL;
421
422 return 0;
423}
424
425static int sh_mobile_ceu_set_fmt_cap(struct soc_camera_device *icd,
426 __u32 pixfmt, struct v4l2_rect *rect)
427{
428 return icd->ops->set_fmt_cap(icd, pixfmt, rect);
429}
430
431static int sh_mobile_ceu_try_fmt_cap(struct soc_camera_device *icd,
432 struct v4l2_format *f)
433{
434 /* FIXME: calculate using depth and bus width */
435
436 if (f->fmt.pix.height < 4)
437 f->fmt.pix.height = 4;
438 if (f->fmt.pix.height > 1920)
439 f->fmt.pix.height = 1920;
440 if (f->fmt.pix.width < 2)
441 f->fmt.pix.width = 2;
442 if (f->fmt.pix.width > 2560)
443 f->fmt.pix.width = 2560;
444 f->fmt.pix.width &= ~0x01;
445 f->fmt.pix.height &= ~0x03;
446
447 /* limit to sensor capabilities */
448 return icd->ops->try_fmt_cap(icd, f);
449}
450
451static int sh_mobile_ceu_reqbufs(struct soc_camera_file *icf,
452 struct v4l2_requestbuffers *p)
453{
454 int i;
455
456 /* This is for locking debugging only. I removed spinlocks and now I
457 * check whether .prepare is ever called on a linked buffer, or whether
458 * a dma IRQ can occur for an in-work or unlinked buffer. Until now
459 * it hadn't triggered */
460 for (i = 0; i < p->count; i++) {
461 struct sh_mobile_ceu_buffer *buf;
462
463 buf = container_of(icf->vb_vidq.bufs[i],
464 struct sh_mobile_ceu_buffer, vb);
465 INIT_LIST_HEAD(&buf->vb.queue);
466 }
467
468 return 0;
469}
470
471static unsigned int sh_mobile_ceu_poll(struct file *file, poll_table *pt)
472{
473 struct soc_camera_file *icf = file->private_data;
474 struct sh_mobile_ceu_buffer *buf;
475
476 buf = list_entry(icf->vb_vidq.stream.next,
477 struct sh_mobile_ceu_buffer, vb.stream);
478
479 poll_wait(file, &buf->vb.done, pt);
480
481 if (buf->vb.state == VIDEOBUF_DONE ||
482 buf->vb.state == VIDEOBUF_ERROR)
483 return POLLIN|POLLRDNORM;
484
485 return 0;
486}
487
488static int sh_mobile_ceu_querycap(struct soc_camera_host *ici,
489 struct v4l2_capability *cap)
490{
491 strlcpy(cap->card, "SuperH_Mobile_CEU", sizeof(cap->card));
492 cap->version = KERNEL_VERSION(0, 0, 5);
493 cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING;
494 return 0;
495}
496
497static void sh_mobile_ceu_init_videobuf(struct videobuf_queue *q,
498 struct soc_camera_device *icd)
499{
500 struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
501 struct sh_mobile_ceu_dev *pcdev = ici->priv;
502
503 videobuf_queue_dma_contig_init(q,
504 &sh_mobile_ceu_videobuf_ops,
505 &ici->dev, &pcdev->lock,
506 V4L2_BUF_TYPE_VIDEO_CAPTURE,
507 V4L2_FIELD_NONE,
508 sizeof(struct sh_mobile_ceu_buffer),
509 icd);
510}
511
512static struct soc_camera_host_ops sh_mobile_ceu_host_ops = {
513 .owner = THIS_MODULE,
514 .add = sh_mobile_ceu_add_device,
515 .remove = sh_mobile_ceu_remove_device,
516 .set_fmt_cap = sh_mobile_ceu_set_fmt_cap,
517 .try_fmt_cap = sh_mobile_ceu_try_fmt_cap,
518 .reqbufs = sh_mobile_ceu_reqbufs,
519 .poll = sh_mobile_ceu_poll,
520 .querycap = sh_mobile_ceu_querycap,
521 .try_bus_param = sh_mobile_ceu_try_bus_param,
522 .set_bus_param = sh_mobile_ceu_set_bus_param,
523 .init_videobuf = sh_mobile_ceu_init_videobuf,
524};
525
526static int sh_mobile_ceu_probe(struct platform_device *pdev)
527{
528 struct sh_mobile_ceu_dev *pcdev;
529 struct resource *res;
530 void __iomem *base;
531 unsigned int irq;
532 int err = 0;
533
534 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
535 irq = platform_get_irq(pdev, 0);
536 if (!res || !irq) {
537 dev_err(&pdev->dev, "Not enough CEU platform resources.\n");
538 err = -ENODEV;
539 goto exit;
540 }
541
542 pcdev = kzalloc(sizeof(*pcdev), GFP_KERNEL);
543 if (!pcdev) {
544 dev_err(&pdev->dev, "Could not allocate pcdev\n");
545 err = -ENOMEM;
546 goto exit;
547 }
548
549 platform_set_drvdata(pdev, pcdev);
550 INIT_LIST_HEAD(&pcdev->capture);
551 spin_lock_init(&pcdev->lock);
552
553 pcdev->pdata = pdev->dev.platform_data;
554 if (!pcdev->pdata) {
555 err = -EINVAL;
556 dev_err(&pdev->dev, "CEU platform data not set.\n");
557 goto exit_kfree;
558 }
559
560 base = ioremap_nocache(res->start, res->end - res->start + 1);
561 if (!base) {
562 err = -ENXIO;
563 dev_err(&pdev->dev, "Unable to ioremap CEU registers.\n");
564 goto exit_kfree;
565 }
566
567 pcdev->irq = irq;
568 pcdev->base = base;
569 pcdev->video_limit = 0; /* only enabled if second resource exists */
570 pcdev->dev = &pdev->dev;
571
572 res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
573 if (res) {
574 err = dma_declare_coherent_memory(&pdev->dev, res->start,
575 res->start,
576 (res->end - res->start) + 1,
577 DMA_MEMORY_MAP |
578 DMA_MEMORY_EXCLUSIVE);
579 if (!err) {
580 dev_err(&pdev->dev, "Unable to declare CEU memory.\n");
581 err = -ENXIO;
582 goto exit_iounmap;
583 }
584
585 pcdev->video_limit = (res->end - res->start) + 1;
586 }
587
588 /* request irq */
589 err = request_irq(pcdev->irq, sh_mobile_ceu_irq, IRQF_DISABLED,
590 pdev->dev.bus_id, pcdev);
591 if (err) {
592 dev_err(&pdev->dev, "Unable to register CEU interrupt.\n");
593 goto exit_release_mem;
594 }
595
596 pcdev->ici.priv = pcdev;
597 pcdev->ici.dev.parent = &pdev->dev;
598 pcdev->ici.nr = pdev->id;
599 pcdev->ici.drv_name = pdev->dev.bus_id,
600 pcdev->ici.ops = &sh_mobile_ceu_host_ops,
601
602 err = soc_camera_host_register(&pcdev->ici);
603 if (err)
604 goto exit_free_irq;
605
606 return 0;
607
608exit_free_irq:
609 free_irq(pcdev->irq, pcdev);
610exit_release_mem:
611 if (platform_get_resource(pdev, IORESOURCE_MEM, 1))
612 dma_release_declared_memory(&pdev->dev);
613exit_iounmap:
614 iounmap(base);
615exit_kfree:
616 kfree(pcdev);
617exit:
618 return err;
619}
620
621static int sh_mobile_ceu_remove(struct platform_device *pdev)
622{
623 struct sh_mobile_ceu_dev *pcdev = platform_get_drvdata(pdev);
624
625 soc_camera_host_unregister(&pcdev->ici);
626 free_irq(pcdev->irq, pcdev);
627 if (platform_get_resource(pdev, IORESOURCE_MEM, 1))
628 dma_release_declared_memory(&pdev->dev);
629 iounmap(pcdev->base);
630 kfree(pcdev);
631 return 0;
632}
633
634static struct platform_driver sh_mobile_ceu_driver = {
635 .driver = {
636 .name = "sh_mobile_ceu",
637 },
638 .probe = sh_mobile_ceu_probe,
639 .remove = sh_mobile_ceu_remove,
640};
641
642static int __init sh_mobile_ceu_init(void)
643{
644 return platform_driver_register(&sh_mobile_ceu_driver);
645}
646
647static void __exit sh_mobile_ceu_exit(void)
648{
649 return platform_driver_unregister(&sh_mobile_ceu_driver);
650}
651
652module_init(sh_mobile_ceu_init);
653module_exit(sh_mobile_ceu_exit);
654
655MODULE_DESCRIPTION("SuperH Mobile CEU driver");
656MODULE_AUTHOR("Magnus Damm");
657MODULE_LICENSE("GPL");
diff --git a/include/media/sh_mobile_ceu.h b/include/media/sh_mobile_ceu.h
new file mode 100644
index 000000000000..234a4711d2ec
--- /dev/null
+++ b/include/media/sh_mobile_ceu.h
@@ -0,0 +1,12 @@
1#ifndef __ASM_SH_MOBILE_CEU_H__
2#define __ASM_SH_MOBILE_CEU_H__
3
4#include <media/soc_camera.h>
5
6struct sh_mobile_ceu_info {
7 unsigned long flags; /* SOCAM_... */
8 void (*enable_camera)(void);
9 void (*disable_camera)(void);
10};
11
12#endif /* __ASM_SH_MOBILE_CEU_H__ */