4 * Copyright (C) 2005-2010 Texas Instruments.
6 * This file is licensed under the terms of the GNU General Public License
7 * version 2. This program is licensed "as is" without any warranty of any
8 * kind, whether express or implied.
10 * Leveraged code from the OMAP2 camera driver
11 * Video-for-Linux (Version 2) camera capture driver for
12 * the OMAP24xx camera controller.
14 * Author: Andy Lowe (source@mvista.com)
16 * Copyright (C) 2004 MontaVista Software, Inc.
17 * Copyright (C) 2010 Texas Instruments.
20 * 20-APR-2006 Khasim Modified VRFB based Rotation,
21 * The image data is always read from 0 degree
23 * to the virtual space of desired rotation angle
24 * 4-DEC-2006 Jian Changed to support better memory management
26 * 17-Nov-2008 Hardik Changed driver to use video_ioctl2
28 * 23-Feb-2010 Vaibhav H Modified to use new DSS2 interface
32 #include <linux/init.h>
33 #include <linux/module.h>
34 #include <linux/vmalloc.h>
35 #include <linux/sched.h>
36 #include <linux/types.h>
37 #include <linux/platform_device.h>
38 #include <linux/irq.h>
39 #include <linux/videodev2.h>
40 #include <linux/dma-mapping.h>
41 #include <linux/slab.h>
43 #include <media/videobuf-dma-contig.h>
44 #include <media/v4l2-device.h>
45 #include <media/v4l2-ioctl.h>
47 #include <video/omapvrfb.h>
48 #include <video/omapdss.h>
50 #include "omap_voutlib.h"
51 #include "omap_voutdef.h"
52 #include "omap_vout_vrfb.h"
54 MODULE_AUTHOR("Texas Instruments");
55 MODULE_DESCRIPTION("OMAP Video for Linux Video out driver");
56 MODULE_LICENSE("GPL");
58 /* Driver Configuration macros */
59 #define VOUT_NAME "omap_vout"
61 enum omap_vout_channels
{
66 static struct videobuf_queue_ops video_vbq_ops
;
67 /* Variables configurable through module params*/
68 static u32 video1_numbuffers
= 3;
69 static u32 video2_numbuffers
= 3;
70 static u32 video1_bufsize
= OMAP_VOUT_MAX_BUF_SIZE
;
71 static u32 video2_bufsize
= OMAP_VOUT_MAX_BUF_SIZE
;
72 static bool vid1_static_vrfb_alloc
;
73 static bool vid2_static_vrfb_alloc
;
76 /* Module parameters */
77 module_param(video1_numbuffers
, uint
, S_IRUGO
);
78 MODULE_PARM_DESC(video1_numbuffers
,
79 "Number of buffers to be allocated at init time for Video1 device.");
81 module_param(video2_numbuffers
, uint
, S_IRUGO
);
82 MODULE_PARM_DESC(video2_numbuffers
,
83 "Number of buffers to be allocated at init time for Video2 device.");
85 module_param(video1_bufsize
, uint
, S_IRUGO
);
86 MODULE_PARM_DESC(video1_bufsize
,
87 "Size of the buffer to be allocated for video1 device");
89 module_param(video2_bufsize
, uint
, S_IRUGO
);
90 MODULE_PARM_DESC(video2_bufsize
,
91 "Size of the buffer to be allocated for video2 device");
93 module_param(vid1_static_vrfb_alloc
, bool, S_IRUGO
);
94 MODULE_PARM_DESC(vid1_static_vrfb_alloc
,
95 "Static allocation of the VRFB buffer for video1 device");
97 module_param(vid2_static_vrfb_alloc
, bool, S_IRUGO
);
98 MODULE_PARM_DESC(vid2_static_vrfb_alloc
,
99 "Static allocation of the VRFB buffer for video2 device");
101 module_param(debug
, bool, S_IRUGO
);
102 MODULE_PARM_DESC(debug
, "Debug level (0-1)");
104 /* list of image formats supported by OMAP2 video pipelines */
105 static const struct v4l2_fmtdesc omap_formats
[] = {
107 /* Note: V4L2 defines RGB565 as:
110 * g2 g1 g0 r4 r3 r2 r1 r0 b4 b3 b2 b1 b0 g5 g4 g3
112 * We interpret RGB565 as:
115 * g2 g1 g0 b4 b3 b2 b1 b0 r4 r3 r2 r1 r0 g5 g4 g3
117 .description
= "RGB565, le",
118 .pixelformat
= V4L2_PIX_FMT_RGB565
,
121 /* Note: V4L2 defines RGB32 as: RGB-8-8-8-8 we use
122 * this for RGB24 unpack mode, the last 8 bits are ignored
124 .description
= "RGB32, le",
125 .pixelformat
= V4L2_PIX_FMT_RGB32
,
128 /* Note: V4L2 defines RGB24 as: RGB-8-8-8 we use
129 * this for RGB24 packed mode
132 .description
= "RGB24, le",
133 .pixelformat
= V4L2_PIX_FMT_RGB24
,
136 .description
= "YUYV (YUV 4:2:2), packed",
137 .pixelformat
= V4L2_PIX_FMT_YUYV
,
140 .description
= "UYVY, packed",
141 .pixelformat
= V4L2_PIX_FMT_UYVY
,
145 #define NUM_OUTPUT_FORMATS (ARRAY_SIZE(omap_formats))
150 static int omap_vout_try_format(struct v4l2_pix_format
*pix
)
154 pix
->height
= clamp(pix
->height
, (u32
)VID_MIN_HEIGHT
,
155 (u32
)VID_MAX_HEIGHT
);
156 pix
->width
= clamp(pix
->width
, (u32
)VID_MIN_WIDTH
, (u32
)VID_MAX_WIDTH
);
158 for (ifmt
= 0; ifmt
< NUM_OUTPUT_FORMATS
; ifmt
++) {
159 if (pix
->pixelformat
== omap_formats
[ifmt
].pixelformat
)
163 if (ifmt
== NUM_OUTPUT_FORMATS
)
166 pix
->pixelformat
= omap_formats
[ifmt
].pixelformat
;
167 pix
->field
= V4L2_FIELD_ANY
;
169 switch (pix
->pixelformat
) {
170 case V4L2_PIX_FMT_YUYV
:
171 case V4L2_PIX_FMT_UYVY
:
173 pix
->colorspace
= V4L2_COLORSPACE_JPEG
;
176 case V4L2_PIX_FMT_RGB565
:
177 case V4L2_PIX_FMT_RGB565X
:
178 pix
->colorspace
= V4L2_COLORSPACE_SRGB
;
181 case V4L2_PIX_FMT_RGB24
:
182 pix
->colorspace
= V4L2_COLORSPACE_SRGB
;
185 case V4L2_PIX_FMT_RGB32
:
186 case V4L2_PIX_FMT_BGR32
:
187 pix
->colorspace
= V4L2_COLORSPACE_SRGB
;
191 pix
->bytesperline
= pix
->width
* bpp
;
192 pix
->sizeimage
= pix
->bytesperline
* pix
->height
;
198 * omap_vout_uservirt_to_phys: This inline function is used to convert user
199 * space virtual address to physical address.
201 static unsigned long omap_vout_uservirt_to_phys(unsigned long virtp
)
203 unsigned long physp
= 0;
204 struct vm_area_struct
*vma
;
205 struct mm_struct
*mm
= current
->mm
;
207 /* For kernel direct-mapped memory, take the easy way */
208 if (virtp
>= PAGE_OFFSET
)
209 return virt_to_phys((void *) virtp
);
211 down_read(¤t
->mm
->mmap_sem
);
212 vma
= find_vma(mm
, virtp
);
213 if (vma
&& (vma
->vm_flags
& VM_IO
) && vma
->vm_pgoff
) {
214 /* this will catch, kernel-allocated, mmaped-to-usermode
216 physp
= (vma
->vm_pgoff
<< PAGE_SHIFT
) + (virtp
- vma
->vm_start
);
217 up_read(¤t
->mm
->mmap_sem
);
219 /* otherwise, use get_user_pages() for general userland pages */
220 int res
, nr_pages
= 1;
223 res
= get_user_pages(current
, current
->mm
, virtp
, nr_pages
, 1,
225 up_read(¤t
->mm
->mmap_sem
);
227 if (res
== nr_pages
) {
228 physp
= __pa(page_address(&pages
[0]) +
229 (virtp
& ~PAGE_MASK
));
231 printk(KERN_WARNING VOUT_NAME
232 "get_user_pages failed\n");
241 * Free the V4L2 buffers
243 void omap_vout_free_buffers(struct omap_vout_device
*vout
)
247 /* Allocate memory for the buffers */
248 numbuffers
= (vout
->vid
) ? video2_numbuffers
: video1_numbuffers
;
249 vout
->buffer_size
= (vout
->vid
) ? video2_bufsize
: video1_bufsize
;
251 for (i
= 0; i
< numbuffers
; i
++) {
252 omap_vout_free_buffer(vout
->buf_virt_addr
[i
],
254 vout
->buf_phy_addr
[i
] = 0;
255 vout
->buf_virt_addr
[i
] = 0;
260 * Convert V4L2 rotation to DSS rotation
261 * V4L2 understand 0, 90, 180, 270.
262 * Convert to 0, 1, 2 and 3 respectively for DSS
264 static int v4l2_rot_to_dss_rot(int v4l2_rotation
,
265 enum dss_rotation
*rotation
, bool mirror
)
269 switch (v4l2_rotation
) {
271 *rotation
= dss_rotation_90_degree
;
274 *rotation
= dss_rotation_180_degree
;
277 *rotation
= dss_rotation_270_degree
;
280 *rotation
= dss_rotation_0_degree
;
288 static int omap_vout_calculate_offset(struct omap_vout_device
*vout
)
290 struct omapvideo_info
*ovid
;
291 struct v4l2_rect
*crop
= &vout
->crop
;
292 struct v4l2_pix_format
*pix
= &vout
->pix
;
293 int *cropped_offset
= &vout
->cropped_offset
;
294 int ps
= 2, line_length
= 0;
296 ovid
= &vout
->vid_info
;
298 if (ovid
->rotation_type
== VOUT_ROT_VRFB
) {
299 omap_vout_calculate_vrfb_offset(vout
);
301 vout
->line_length
= line_length
= pix
->width
;
303 if (V4L2_PIX_FMT_YUYV
== pix
->pixelformat
||
304 V4L2_PIX_FMT_UYVY
== pix
->pixelformat
)
306 else if (V4L2_PIX_FMT_RGB32
== pix
->pixelformat
)
308 else if (V4L2_PIX_FMT_RGB24
== pix
->pixelformat
)
313 *cropped_offset
= (line_length
* ps
) *
314 crop
->top
+ crop
->left
* ps
;
317 v4l2_dbg(1, debug
, &vout
->vid_dev
->v4l2_dev
, "%s Offset:%x\n",
318 __func__
, vout
->cropped_offset
);
324 * Convert V4L2 pixel format to DSS pixel format
326 static int video_mode_to_dss_mode(struct omap_vout_device
*vout
)
328 struct omap_overlay
*ovl
;
329 struct omapvideo_info
*ovid
;
330 struct v4l2_pix_format
*pix
= &vout
->pix
;
331 enum omap_color_mode mode
;
333 ovid
= &vout
->vid_info
;
334 ovl
= ovid
->overlays
[0];
336 switch (pix
->pixelformat
) {
337 case V4L2_PIX_FMT_YUYV
:
338 mode
= OMAP_DSS_COLOR_YUV2
;
340 case V4L2_PIX_FMT_UYVY
:
341 mode
= OMAP_DSS_COLOR_UYVY
;
343 case V4L2_PIX_FMT_RGB565
:
344 mode
= OMAP_DSS_COLOR_RGB16
;
346 case V4L2_PIX_FMT_RGB24
:
347 mode
= OMAP_DSS_COLOR_RGB24P
;
349 case V4L2_PIX_FMT_RGB32
:
350 mode
= (ovl
->id
== OMAP_DSS_VIDEO1
) ?
351 OMAP_DSS_COLOR_RGB24U
: OMAP_DSS_COLOR_ARGB32
;
353 case V4L2_PIX_FMT_BGR32
:
354 mode
= OMAP_DSS_COLOR_RGBX32
;
366 static int omapvid_setup_overlay(struct omap_vout_device
*vout
,
367 struct omap_overlay
*ovl
, int posx
, int posy
, int outw
,
371 struct omap_overlay_info info
;
372 int cropheight
, cropwidth
, pixwidth
;
374 if ((ovl
->caps
& OMAP_DSS_OVL_CAP_SCALE
) == 0 &&
375 (outw
!= vout
->pix
.width
|| outh
!= vout
->pix
.height
)) {
380 vout
->dss_mode
= video_mode_to_dss_mode(vout
);
381 if (vout
->dss_mode
== -EINVAL
) {
386 /* Setup the input plane parameters according to
387 * rotation value selected.
389 if (is_rotation_90_or_270(vout
)) {
390 cropheight
= vout
->crop
.width
;
391 cropwidth
= vout
->crop
.height
;
392 pixwidth
= vout
->pix
.height
;
394 cropheight
= vout
->crop
.height
;
395 cropwidth
= vout
->crop
.width
;
396 pixwidth
= vout
->pix
.width
;
399 ovl
->get_overlay_info(ovl
, &info
);
401 info
.width
= cropwidth
;
402 info
.height
= cropheight
;
403 info
.color_mode
= vout
->dss_mode
;
404 info
.mirror
= vout
->mirror
;
407 info
.out_width
= outw
;
408 info
.out_height
= outh
;
409 info
.global_alpha
= vout
->win
.global_alpha
;
410 if (!is_rotation_enabled(vout
)) {
412 info
.rotation_type
= OMAP_DSS_ROT_DMA
;
413 info
.screen_width
= pixwidth
;
415 info
.rotation
= vout
->rotation
;
416 info
.rotation_type
= OMAP_DSS_ROT_VRFB
;
417 info
.screen_width
= 2048;
420 v4l2_dbg(1, debug
, &vout
->vid_dev
->v4l2_dev
,
421 "%s enable=%d addr=%pad width=%d\n height=%d color_mode=%d\n"
422 "rotation=%d mirror=%d posx=%d posy=%d out_width = %d \n"
423 "out_height=%d rotation_type=%d screen_width=%d\n",
424 __func__
, ovl
->is_enabled(ovl
), &info
.paddr
, info
.width
, info
.height
,
425 info
.color_mode
, info
.rotation
, info
.mirror
, info
.pos_x
,
426 info
.pos_y
, info
.out_width
, info
.out_height
, info
.rotation_type
,
429 ret
= ovl
->set_overlay_info(ovl
, &info
);
436 v4l2_warn(&vout
->vid_dev
->v4l2_dev
, "setup_overlay failed\n");
441 * Initialize the overlay structure
443 static int omapvid_init(struct omap_vout_device
*vout
, u32 addr
)
446 struct v4l2_window
*win
;
447 struct omap_overlay
*ovl
;
448 int posx
, posy
, outw
, outh
, temp
;
449 struct omap_video_timings
*timing
;
450 struct omapvideo_info
*ovid
= &vout
->vid_info
;
453 for (i
= 0; i
< ovid
->num_overlays
; i
++) {
454 struct omap_dss_device
*dssdev
;
456 ovl
= ovid
->overlays
[i
];
457 dssdev
= ovl
->get_device(ovl
);
462 timing
= &dssdev
->panel
.timings
;
465 outh
= win
->w
.height
;
466 switch (vout
->rotation
) {
467 case dss_rotation_90_degree
:
468 /* Invert the height and width for 90
469 * and 270 degree rotation
474 posy
= (timing
->y_res
- win
->w
.width
) - win
->w
.left
;
478 case dss_rotation_180_degree
:
479 posx
= (timing
->x_res
- win
->w
.width
) - win
->w
.left
;
480 posy
= (timing
->y_res
- win
->w
.height
) - win
->w
.top
;
483 case dss_rotation_270_degree
:
488 posx
= (timing
->x_res
- win
->w
.height
) - win
->w
.top
;
497 ret
= omapvid_setup_overlay(vout
, ovl
, posx
, posy
,
500 goto omapvid_init_err
;
505 v4l2_warn(&vout
->vid_dev
->v4l2_dev
, "apply_changes failed\n");
510 * Apply the changes set the go bit of DSS
512 static int omapvid_apply_changes(struct omap_vout_device
*vout
)
515 struct omap_overlay
*ovl
;
516 struct omapvideo_info
*ovid
= &vout
->vid_info
;
518 for (i
= 0; i
< ovid
->num_overlays
; i
++) {
519 struct omap_dss_device
*dssdev
;
521 ovl
= ovid
->overlays
[i
];
522 dssdev
= ovl
->get_device(ovl
);
525 ovl
->manager
->apply(ovl
->manager
);
531 static int omapvid_handle_interlace_display(struct omap_vout_device
*vout
,
532 unsigned int irqstatus
, struct timeval timevalue
)
536 if (vout
->first_int
) {
541 if (irqstatus
& DISPC_IRQ_EVSYNC_ODD
)
543 else if (irqstatus
& DISPC_IRQ_EVSYNC_EVEN
)
549 if (fid
!= vout
->field_id
) {
551 vout
->field_id
= fid
;
552 } else if (0 == fid
) {
553 if (vout
->cur_frm
== vout
->next_frm
)
556 vout
->cur_frm
->ts
= timevalue
;
557 vout
->cur_frm
->state
= VIDEOBUF_DONE
;
558 wake_up_interruptible(&vout
->cur_frm
->done
);
559 vout
->cur_frm
= vout
->next_frm
;
561 if (list_empty(&vout
->dma_queue
) ||
562 (vout
->cur_frm
!= vout
->next_frm
))
566 return vout
->field_id
;
571 static void omap_vout_isr(void *arg
, unsigned int irqstatus
)
573 int ret
, fid
, mgr_id
;
575 struct omap_overlay
*ovl
;
576 struct timeval timevalue
;
577 struct omapvideo_info
*ovid
;
578 struct omap_dss_device
*cur_display
;
579 struct omap_vout_device
*vout
= (struct omap_vout_device
*)arg
;
581 if (!vout
->streaming
)
584 ovid
= &vout
->vid_info
;
585 ovl
= ovid
->overlays
[0];
587 mgr_id
= ovl
->manager
->id
;
589 /* get the display device attached to the overlay */
590 cur_display
= ovl
->get_device(ovl
);
595 spin_lock(&vout
->vbq_lock
);
596 v4l2_get_timestamp(&timevalue
);
598 switch (cur_display
->type
) {
599 case OMAP_DISPLAY_TYPE_DSI
:
600 case OMAP_DISPLAY_TYPE_DPI
:
601 case OMAP_DISPLAY_TYPE_DVI
:
602 if (mgr_id
== OMAP_DSS_CHANNEL_LCD
)
603 irq
= DISPC_IRQ_VSYNC
;
604 else if (mgr_id
== OMAP_DSS_CHANNEL_LCD2
)
605 irq
= DISPC_IRQ_VSYNC2
;
609 if (!(irqstatus
& irq
))
612 case OMAP_DISPLAY_TYPE_VENC
:
613 fid
= omapvid_handle_interlace_display(vout
, irqstatus
,
618 case OMAP_DISPLAY_TYPE_HDMI
:
619 if (!(irqstatus
& DISPC_IRQ_EVSYNC_EVEN
))
626 if (!vout
->first_int
&& (vout
->cur_frm
!= vout
->next_frm
)) {
627 vout
->cur_frm
->ts
= timevalue
;
628 vout
->cur_frm
->state
= VIDEOBUF_DONE
;
629 wake_up_interruptible(&vout
->cur_frm
->done
);
630 vout
->cur_frm
= vout
->next_frm
;
634 if (list_empty(&vout
->dma_queue
))
637 vout
->next_frm
= list_entry(vout
->dma_queue
.next
,
638 struct videobuf_buffer
, queue
);
639 list_del(&vout
->next_frm
->queue
);
641 vout
->next_frm
->state
= VIDEOBUF_ACTIVE
;
643 addr
= (unsigned long) vout
->queued_buf_addr
[vout
->next_frm
->i
]
644 + vout
->cropped_offset
;
646 /* First save the configuration in ovelray structure */
647 ret
= omapvid_init(vout
, addr
);
649 printk(KERN_ERR VOUT_NAME
650 "failed to set overlay info\n");
654 /* Enable the pipeline and set the Go bit */
655 ret
= omapvid_apply_changes(vout
);
657 printk(KERN_ERR VOUT_NAME
"failed to change mode\n");
660 spin_unlock(&vout
->vbq_lock
);
663 /* Video buffer call backs */
666 * Buffer setup function is called by videobuf layer when REQBUF ioctl is
667 * called. This is used to setup buffers and return size and count of
668 * buffers allocated. After the call to this buffer, videobuf layer will
669 * setup buffer queue depending on the size and count of buffers
671 static int omap_vout_buffer_setup(struct videobuf_queue
*q
, unsigned int *count
,
674 int startindex
= 0, i
, j
;
675 u32 phy_addr
= 0, virt_addr
= 0;
676 struct omap_vout_device
*vout
= q
->priv_data
;
677 struct omapvideo_info
*ovid
= &vout
->vid_info
;
678 int vid_max_buf_size
;
683 vid_max_buf_size
= vout
->vid
== OMAP_VIDEO1
? video1_bufsize
:
686 if (V4L2_BUF_TYPE_VIDEO_OUTPUT
!= q
->type
)
689 startindex
= (vout
->vid
== OMAP_VIDEO1
) ?
690 video1_numbuffers
: video2_numbuffers
;
691 if (V4L2_MEMORY_MMAP
== vout
->memory
&& *count
< startindex
)
694 if (ovid
->rotation_type
== VOUT_ROT_VRFB
) {
695 if (omap_vout_vrfb_buffer_setup(vout
, count
, startindex
))
699 if (V4L2_MEMORY_MMAP
!= vout
->memory
)
702 /* Now allocated the V4L2 buffers */
703 *size
= PAGE_ALIGN(vout
->pix
.width
* vout
->pix
.height
* vout
->bpp
);
704 startindex
= (vout
->vid
== OMAP_VIDEO1
) ?
705 video1_numbuffers
: video2_numbuffers
;
707 /* Check the size of the buffer */
708 if (*size
> vid_max_buf_size
) {
709 v4l2_err(&vout
->vid_dev
->v4l2_dev
,
710 "buffer allocation mismatch [%u] [%u]\n",
711 *size
, vout
->buffer_size
);
715 for (i
= startindex
; i
< *count
; i
++) {
716 vout
->buffer_size
= *size
;
718 virt_addr
= omap_vout_alloc_buffer(vout
->buffer_size
,
721 if (ovid
->rotation_type
== VOUT_ROT_NONE
) {
724 if (!is_rotation_enabled(vout
))
726 /* Free the VRFB buffers if no space for V4L2 buffers */
727 for (j
= i
; j
< *count
; j
++) {
728 omap_vout_free_buffer(
729 vout
->smsshado_virt_addr
[j
],
730 vout
->smsshado_size
);
731 vout
->smsshado_virt_addr
[j
] = 0;
732 vout
->smsshado_phy_addr
[j
] = 0;
736 vout
->buf_virt_addr
[i
] = virt_addr
;
737 vout
->buf_phy_addr
[i
] = phy_addr
;
739 *count
= vout
->buffer_allocated
= i
;
745 * Free the V4L2 buffers additionally allocated than default
748 static void omap_vout_free_extra_buffers(struct omap_vout_device
*vout
)
750 int num_buffers
= 0, i
;
752 num_buffers
= (vout
->vid
== OMAP_VIDEO1
) ?
753 video1_numbuffers
: video2_numbuffers
;
755 for (i
= num_buffers
; i
< vout
->buffer_allocated
; i
++) {
756 if (vout
->buf_virt_addr
[i
])
757 omap_vout_free_buffer(vout
->buf_virt_addr
[i
],
760 vout
->buf_virt_addr
[i
] = 0;
761 vout
->buf_phy_addr
[i
] = 0;
763 vout
->buffer_allocated
= num_buffers
;
767 * This function will be called when VIDIOC_QBUF ioctl is called.
768 * It prepare buffers before give out for the display. This function
769 * converts user space virtual address into physical address if userptr memory
770 * exchange mechanism is used. If rotation is enabled, it copies entire
771 * buffer into VRFB memory space before giving it to the DSS.
773 static int omap_vout_buffer_prepare(struct videobuf_queue
*q
,
774 struct videobuf_buffer
*vb
,
775 enum v4l2_field field
)
777 struct omap_vout_device
*vout
= q
->priv_data
;
778 struct omapvideo_info
*ovid
= &vout
->vid_info
;
780 if (VIDEOBUF_NEEDS_INIT
== vb
->state
) {
781 vb
->width
= vout
->pix
.width
;
782 vb
->height
= vout
->pix
.height
;
783 vb
->size
= vb
->width
* vb
->height
* vout
->bpp
;
786 vb
->state
= VIDEOBUF_PREPARED
;
787 /* if user pointer memory mechanism is used, get the physical
788 * address of the buffer
790 if (V4L2_MEMORY_USERPTR
== vb
->memory
) {
793 /* Physical address */
794 vout
->queued_buf_addr
[vb
->i
] = (u8
*)
795 omap_vout_uservirt_to_phys(vb
->baddr
);
797 unsigned long addr
, dma_addr
;
800 addr
= (unsigned long) vout
->buf_virt_addr
[vb
->i
];
801 size
= (unsigned long) vb
->size
;
803 dma_addr
= dma_map_single(vout
->vid_dev
->v4l2_dev
.dev
, (void *) addr
,
804 size
, DMA_TO_DEVICE
);
805 if (dma_mapping_error(vout
->vid_dev
->v4l2_dev
.dev
, dma_addr
))
806 v4l2_err(&vout
->vid_dev
->v4l2_dev
, "dma_map_single failed\n");
808 vout
->queued_buf_addr
[vb
->i
] = (u8
*)vout
->buf_phy_addr
[vb
->i
];
811 if (ovid
->rotation_type
== VOUT_ROT_VRFB
)
812 return omap_vout_prepare_vrfb(vout
, vb
);
818 * Buffer queue function will be called from the videobuf layer when _QBUF
819 * ioctl is called. It is used to enqueue buffer, which is ready to be
822 static void omap_vout_buffer_queue(struct videobuf_queue
*q
,
823 struct videobuf_buffer
*vb
)
825 struct omap_vout_device
*vout
= q
->priv_data
;
827 /* Driver is also maintainig a queue. So enqueue buffer in the driver
829 list_add_tail(&vb
->queue
, &vout
->dma_queue
);
831 vb
->state
= VIDEOBUF_QUEUED
;
835 * Buffer release function is called from videobuf layer to release buffer
836 * which are already allocated
838 static void omap_vout_buffer_release(struct videobuf_queue
*q
,
839 struct videobuf_buffer
*vb
)
841 struct omap_vout_device
*vout
= q
->priv_data
;
843 vb
->state
= VIDEOBUF_NEEDS_INIT
;
845 if (V4L2_MEMORY_MMAP
!= vout
->memory
)
852 static unsigned int omap_vout_poll(struct file
*file
,
853 struct poll_table_struct
*wait
)
855 struct omap_vout_device
*vout
= file
->private_data
;
856 struct videobuf_queue
*q
= &vout
->vbq
;
858 return videobuf_poll_stream(file
, q
, wait
);
861 static void omap_vout_vm_open(struct vm_area_struct
*vma
)
863 struct omap_vout_device
*vout
= vma
->vm_private_data
;
865 v4l2_dbg(1, debug
, &vout
->vid_dev
->v4l2_dev
,
866 "vm_open [vma=%08lx-%08lx]\n", vma
->vm_start
, vma
->vm_end
);
870 static void omap_vout_vm_close(struct vm_area_struct
*vma
)
872 struct omap_vout_device
*vout
= vma
->vm_private_data
;
874 v4l2_dbg(1, debug
, &vout
->vid_dev
->v4l2_dev
,
875 "vm_close [vma=%08lx-%08lx]\n", vma
->vm_start
, vma
->vm_end
);
879 static struct vm_operations_struct omap_vout_vm_ops
= {
880 .open
= omap_vout_vm_open
,
881 .close
= omap_vout_vm_close
,
884 static int omap_vout_mmap(struct file
*file
, struct vm_area_struct
*vma
)
888 unsigned long start
= vma
->vm_start
;
889 unsigned long size
= (vma
->vm_end
- vma
->vm_start
);
890 struct omap_vout_device
*vout
= file
->private_data
;
891 struct videobuf_queue
*q
= &vout
->vbq
;
893 v4l2_dbg(1, debug
, &vout
->vid_dev
->v4l2_dev
,
894 " %s pgoff=0x%lx, start=0x%lx, end=0x%lx\n", __func__
,
895 vma
->vm_pgoff
, vma
->vm_start
, vma
->vm_end
);
897 /* look for the buffer to map */
898 for (i
= 0; i
< VIDEO_MAX_FRAME
; i
++) {
899 if (NULL
== q
->bufs
[i
])
901 if (V4L2_MEMORY_MMAP
!= q
->bufs
[i
]->memory
)
903 if (q
->bufs
[i
]->boff
== (vma
->vm_pgoff
<< PAGE_SHIFT
))
907 if (VIDEO_MAX_FRAME
== i
) {
908 v4l2_dbg(1, debug
, &vout
->vid_dev
->v4l2_dev
,
909 "offset invalid [offset=0x%lx]\n",
910 (vma
->vm_pgoff
<< PAGE_SHIFT
));
913 /* Check the size of the buffer */
914 if (size
> vout
->buffer_size
) {
915 v4l2_err(&vout
->vid_dev
->v4l2_dev
,
916 "insufficient memory [%lu] [%u]\n",
917 size
, vout
->buffer_size
);
921 q
->bufs
[i
]->baddr
= vma
->vm_start
;
923 vma
->vm_flags
|= VM_DONTEXPAND
| VM_DONTDUMP
;
924 vma
->vm_page_prot
= pgprot_writecombine(vma
->vm_page_prot
);
925 vma
->vm_ops
= &omap_vout_vm_ops
;
926 vma
->vm_private_data
= (void *) vout
;
927 pos
= (void *)vout
->buf_virt_addr
[i
];
928 vma
->vm_pgoff
= virt_to_phys((void *)pos
) >> PAGE_SHIFT
;
931 pfn
= virt_to_phys((void *) pos
) >> PAGE_SHIFT
;
932 if (remap_pfn_range(vma
, start
, pfn
, PAGE_SIZE
, PAGE_SHARED
))
939 v4l2_dbg(1, debug
, &vout
->vid_dev
->v4l2_dev
, "Exiting %s\n", __func__
);
944 static int omap_vout_release(struct file
*file
)
947 struct videobuf_queue
*q
;
948 struct omapvideo_info
*ovid
;
949 struct omap_vout_device
*vout
= file
->private_data
;
951 v4l2_dbg(1, debug
, &vout
->vid_dev
->v4l2_dev
, "Entering %s\n", __func__
);
952 ovid
= &vout
->vid_info
;
958 /* Disable all the overlay managers connected with this interface */
959 for (i
= 0; i
< ovid
->num_overlays
; i
++) {
960 struct omap_overlay
*ovl
= ovid
->overlays
[i
];
961 struct omap_dss_device
*dssdev
= ovl
->get_device(ovl
);
966 /* Turn off the pipeline */
967 ret
= omapvid_apply_changes(vout
);
969 v4l2_warn(&vout
->vid_dev
->v4l2_dev
,
970 "Unable to apply changes\n");
972 /* Free all buffers */
973 omap_vout_free_extra_buffers(vout
);
975 /* Free the VRFB buffers only if they are allocated
976 * during reqbufs. Don't free if init time allocated
978 if (ovid
->rotation_type
== VOUT_ROT_VRFB
) {
979 if (!vout
->vrfb_static_allocation
)
980 omap_vout_free_vrfb_buffers(vout
);
982 videobuf_mmap_free(q
);
984 /* Even if apply changes fails we should continue
985 freeing allocated memory */
986 if (vout
->streaming
) {
989 mask
= DISPC_IRQ_VSYNC
| DISPC_IRQ_EVSYNC_EVEN
|
990 DISPC_IRQ_EVSYNC_ODD
| DISPC_IRQ_VSYNC2
;
991 omap_dispc_unregister_isr(omap_vout_isr
, vout
, mask
);
992 vout
->streaming
= false;
994 videobuf_streamoff(q
);
995 videobuf_queue_cancel(q
);
998 if (vout
->mmap_count
!= 0)
999 vout
->mmap_count
= 0;
1002 file
->private_data
= NULL
;
1004 if (vout
->buffer_allocated
)
1005 videobuf_mmap_free(q
);
1007 v4l2_dbg(1, debug
, &vout
->vid_dev
->v4l2_dev
, "Exiting %s\n", __func__
);
1011 static int omap_vout_open(struct file
*file
)
1013 struct videobuf_queue
*q
;
1014 struct omap_vout_device
*vout
= NULL
;
1016 vout
= video_drvdata(file
);
1017 v4l2_dbg(1, debug
, &vout
->vid_dev
->v4l2_dev
, "Entering %s\n", __func__
);
1022 /* for now, we only support single open */
1028 file
->private_data
= vout
;
1029 vout
->type
= V4L2_BUF_TYPE_VIDEO_OUTPUT
;
1032 video_vbq_ops
.buf_setup
= omap_vout_buffer_setup
;
1033 video_vbq_ops
.buf_prepare
= omap_vout_buffer_prepare
;
1034 video_vbq_ops
.buf_release
= omap_vout_buffer_release
;
1035 video_vbq_ops
.buf_queue
= omap_vout_buffer_queue
;
1036 spin_lock_init(&vout
->vbq_lock
);
1038 videobuf_queue_dma_contig_init(q
, &video_vbq_ops
, q
->dev
,
1039 &vout
->vbq_lock
, vout
->type
, V4L2_FIELD_NONE
,
1040 sizeof(struct videobuf_buffer
), vout
, NULL
);
1042 v4l2_dbg(1, debug
, &vout
->vid_dev
->v4l2_dev
, "Exiting %s\n", __func__
);
1049 static int vidioc_querycap(struct file
*file
, void *fh
,
1050 struct v4l2_capability
*cap
)
1052 struct omap_vout_device
*vout
= fh
;
1054 strlcpy(cap
->driver
, VOUT_NAME
, sizeof(cap
->driver
));
1055 strlcpy(cap
->card
, vout
->vfd
->name
, sizeof(cap
->card
));
1056 cap
->bus_info
[0] = '\0';
1057 cap
->device_caps
= V4L2_CAP_STREAMING
| V4L2_CAP_VIDEO_OUTPUT
|
1058 V4L2_CAP_VIDEO_OUTPUT_OVERLAY
;
1059 cap
->capabilities
= cap
->device_caps
| V4L2_CAP_DEVICE_CAPS
;
1064 static int vidioc_enum_fmt_vid_out(struct file
*file
, void *fh
,
1065 struct v4l2_fmtdesc
*fmt
)
1067 int index
= fmt
->index
;
1069 if (index
>= NUM_OUTPUT_FORMATS
)
1072 fmt
->flags
= omap_formats
[index
].flags
;
1073 strlcpy(fmt
->description
, omap_formats
[index
].description
,
1074 sizeof(fmt
->description
));
1075 fmt
->pixelformat
= omap_formats
[index
].pixelformat
;
1080 static int vidioc_g_fmt_vid_out(struct file
*file
, void *fh
,
1081 struct v4l2_format
*f
)
1083 struct omap_vout_device
*vout
= fh
;
1085 f
->fmt
.pix
= vout
->pix
;
1090 static int vidioc_try_fmt_vid_out(struct file
*file
, void *fh
,
1091 struct v4l2_format
*f
)
1093 struct omap_overlay
*ovl
;
1094 struct omapvideo_info
*ovid
;
1095 struct omap_video_timings
*timing
;
1096 struct omap_vout_device
*vout
= fh
;
1097 struct omap_dss_device
*dssdev
;
1099 ovid
= &vout
->vid_info
;
1100 ovl
= ovid
->overlays
[0];
1101 /* get the display device attached to the overlay */
1102 dssdev
= ovl
->get_device(ovl
);
1107 timing
= &dssdev
->panel
.timings
;
1109 vout
->fbuf
.fmt
.height
= timing
->y_res
;
1110 vout
->fbuf
.fmt
.width
= timing
->x_res
;
1112 omap_vout_try_format(&f
->fmt
.pix
);
1116 static int vidioc_s_fmt_vid_out(struct file
*file
, void *fh
,
1117 struct v4l2_format
*f
)
1120 struct omap_overlay
*ovl
;
1121 struct omapvideo_info
*ovid
;
1122 struct omap_video_timings
*timing
;
1123 struct omap_vout_device
*vout
= fh
;
1124 struct omap_dss_device
*dssdev
;
1126 if (vout
->streaming
)
1129 mutex_lock(&vout
->lock
);
1131 ovid
= &vout
->vid_info
;
1132 ovl
= ovid
->overlays
[0];
1133 dssdev
= ovl
->get_device(ovl
);
1135 /* get the display device attached to the overlay */
1138 goto s_fmt_vid_out_exit
;
1140 timing
= &dssdev
->panel
.timings
;
1142 /* We dont support RGB24-packed mode if vrfb rotation
1144 if ((is_rotation_enabled(vout
)) &&
1145 f
->fmt
.pix
.pixelformat
== V4L2_PIX_FMT_RGB24
) {
1147 goto s_fmt_vid_out_exit
;
1150 /* get the framebuffer parameters */
1152 if (is_rotation_90_or_270(vout
)) {
1153 vout
->fbuf
.fmt
.height
= timing
->x_res
;
1154 vout
->fbuf
.fmt
.width
= timing
->y_res
;
1156 vout
->fbuf
.fmt
.height
= timing
->y_res
;
1157 vout
->fbuf
.fmt
.width
= timing
->x_res
;
1160 /* change to samller size is OK */
1162 bpp
= omap_vout_try_format(&f
->fmt
.pix
);
1163 f
->fmt
.pix
.sizeimage
= f
->fmt
.pix
.width
* f
->fmt
.pix
.height
* bpp
;
1165 /* try & set the new output format */
1167 vout
->pix
= f
->fmt
.pix
;
1170 /* If YUYV then vrfb bpp is 2, for others its 1 */
1171 if (V4L2_PIX_FMT_YUYV
== vout
->pix
.pixelformat
||
1172 V4L2_PIX_FMT_UYVY
== vout
->pix
.pixelformat
)
1175 /* set default crop and win */
1176 omap_vout_new_format(&vout
->pix
, &vout
->fbuf
, &vout
->crop
, &vout
->win
);
1181 mutex_unlock(&vout
->lock
);
1185 static int vidioc_try_fmt_vid_overlay(struct file
*file
, void *fh
,
1186 struct v4l2_format
*f
)
1189 struct omap_vout_device
*vout
= fh
;
1190 struct omap_overlay
*ovl
;
1191 struct omapvideo_info
*ovid
;
1192 struct v4l2_window
*win
= &f
->fmt
.win
;
1194 ovid
= &vout
->vid_info
;
1195 ovl
= ovid
->overlays
[0];
1197 ret
= omap_vout_try_window(&vout
->fbuf
, win
);
1200 if ((ovl
->caps
& OMAP_DSS_OVL_CAP_GLOBAL_ALPHA
) == 0)
1201 win
->global_alpha
= 255;
1203 win
->global_alpha
= f
->fmt
.win
.global_alpha
;
1209 static int vidioc_s_fmt_vid_overlay(struct file
*file
, void *fh
,
1210 struct v4l2_format
*f
)
1213 struct omap_overlay
*ovl
;
1214 struct omapvideo_info
*ovid
;
1215 struct omap_vout_device
*vout
= fh
;
1216 struct v4l2_window
*win
= &f
->fmt
.win
;
1218 mutex_lock(&vout
->lock
);
1219 ovid
= &vout
->vid_info
;
1220 ovl
= ovid
->overlays
[0];
1222 ret
= omap_vout_new_window(&vout
->crop
, &vout
->win
, &vout
->fbuf
, win
);
1224 /* Video1 plane does not support global alpha on OMAP3 */
1225 if ((ovl
->caps
& OMAP_DSS_OVL_CAP_GLOBAL_ALPHA
) == 0)
1226 vout
->win
.global_alpha
= 255;
1228 vout
->win
.global_alpha
= f
->fmt
.win
.global_alpha
;
1230 vout
->win
.chromakey
= f
->fmt
.win
.chromakey
;
1232 mutex_unlock(&vout
->lock
);
1236 static int vidioc_g_fmt_vid_overlay(struct file
*file
, void *fh
,
1237 struct v4l2_format
*f
)
1240 struct omap_overlay
*ovl
;
1241 struct omapvideo_info
*ovid
;
1242 struct omap_vout_device
*vout
= fh
;
1243 struct omap_overlay_manager_info info
;
1244 struct v4l2_window
*win
= &f
->fmt
.win
;
1246 ovid
= &vout
->vid_info
;
1247 ovl
= ovid
->overlays
[0];
1249 win
->w
= vout
->win
.w
;
1250 win
->field
= vout
->win
.field
;
1251 win
->global_alpha
= vout
->win
.global_alpha
;
1253 if (ovl
->manager
&& ovl
->manager
->get_manager_info
) {
1254 ovl
->manager
->get_manager_info(ovl
->manager
, &info
);
1255 key_value
= info
.trans_key
;
1257 win
->chromakey
= key_value
;
1261 static int vidioc_cropcap(struct file
*file
, void *fh
,
1262 struct v4l2_cropcap
*cropcap
)
1264 struct omap_vout_device
*vout
= fh
;
1265 struct v4l2_pix_format
*pix
= &vout
->pix
;
1267 if (cropcap
->type
!= V4L2_BUF_TYPE_VIDEO_OUTPUT
)
1270 /* Width and height are always even */
1271 cropcap
->bounds
.width
= pix
->width
& ~1;
1272 cropcap
->bounds
.height
= pix
->height
& ~1;
1274 omap_vout_default_crop(&vout
->pix
, &vout
->fbuf
, &cropcap
->defrect
);
1275 cropcap
->pixelaspect
.numerator
= 1;
1276 cropcap
->pixelaspect
.denominator
= 1;
1280 static int vidioc_g_crop(struct file
*file
, void *fh
, struct v4l2_crop
*crop
)
1282 struct omap_vout_device
*vout
= fh
;
1284 if (crop
->type
!= V4L2_BUF_TYPE_VIDEO_OUTPUT
)
1286 crop
->c
= vout
->crop
;
1290 static int vidioc_s_crop(struct file
*file
, void *fh
, const struct v4l2_crop
*crop
)
1293 struct omap_vout_device
*vout
= fh
;
1294 struct omapvideo_info
*ovid
;
1295 struct omap_overlay
*ovl
;
1296 struct omap_video_timings
*timing
;
1297 struct omap_dss_device
*dssdev
;
1299 if (vout
->streaming
)
1302 mutex_lock(&vout
->lock
);
1303 ovid
= &vout
->vid_info
;
1304 ovl
= ovid
->overlays
[0];
1305 /* get the display device attached to the overlay */
1306 dssdev
= ovl
->get_device(ovl
);
1313 timing
= &dssdev
->panel
.timings
;
1315 if (is_rotation_90_or_270(vout
)) {
1316 vout
->fbuf
.fmt
.height
= timing
->x_res
;
1317 vout
->fbuf
.fmt
.width
= timing
->y_res
;
1319 vout
->fbuf
.fmt
.height
= timing
->y_res
;
1320 vout
->fbuf
.fmt
.width
= timing
->x_res
;
1323 if (crop
->type
== V4L2_BUF_TYPE_VIDEO_OUTPUT
)
1324 ret
= omap_vout_new_crop(&vout
->pix
, &vout
->crop
, &vout
->win
,
1325 &vout
->fbuf
, &crop
->c
);
1328 mutex_unlock(&vout
->lock
);
1332 static int vidioc_queryctrl(struct file
*file
, void *fh
,
1333 struct v4l2_queryctrl
*ctrl
)
1338 case V4L2_CID_ROTATE
:
1339 ret
= v4l2_ctrl_query_fill(ctrl
, 0, 270, 90, 0);
1341 case V4L2_CID_BG_COLOR
:
1342 ret
= v4l2_ctrl_query_fill(ctrl
, 0, 0xFFFFFF, 1, 0);
1344 case V4L2_CID_VFLIP
:
1345 ret
= v4l2_ctrl_query_fill(ctrl
, 0, 1, 1, 0);
1348 ctrl
->name
[0] = '\0';
1354 static int vidioc_g_ctrl(struct file
*file
, void *fh
, struct v4l2_control
*ctrl
)
1357 struct omap_vout_device
*vout
= fh
;
1360 case V4L2_CID_ROTATE
:
1361 ctrl
->value
= vout
->control
[0].value
;
1363 case V4L2_CID_BG_COLOR
:
1365 struct omap_overlay_manager_info info
;
1366 struct omap_overlay
*ovl
;
1368 ovl
= vout
->vid_info
.overlays
[0];
1369 if (!ovl
->manager
|| !ovl
->manager
->get_manager_info
) {
1374 ovl
->manager
->get_manager_info(ovl
->manager
, &info
);
1375 ctrl
->value
= info
.default_color
;
1378 case V4L2_CID_VFLIP
:
1379 ctrl
->value
= vout
->control
[2].value
;
1387 static int vidioc_s_ctrl(struct file
*file
, void *fh
, struct v4l2_control
*a
)
1390 struct omap_vout_device
*vout
= fh
;
1393 case V4L2_CID_ROTATE
:
1395 struct omapvideo_info
*ovid
;
1396 int rotation
= a
->value
;
1398 ovid
= &vout
->vid_info
;
1400 mutex_lock(&vout
->lock
);
1401 if (rotation
&& ovid
->rotation_type
== VOUT_ROT_NONE
) {
1402 mutex_unlock(&vout
->lock
);
1407 if (rotation
&& vout
->pix
.pixelformat
== V4L2_PIX_FMT_RGB24
) {
1408 mutex_unlock(&vout
->lock
);
1413 if (v4l2_rot_to_dss_rot(rotation
, &vout
->rotation
,
1415 mutex_unlock(&vout
->lock
);
1420 vout
->control
[0].value
= rotation
;
1421 mutex_unlock(&vout
->lock
);
1424 case V4L2_CID_BG_COLOR
:
1426 struct omap_overlay
*ovl
;
1427 unsigned int color
= a
->value
;
1428 struct omap_overlay_manager_info info
;
1430 ovl
= vout
->vid_info
.overlays
[0];
1432 mutex_lock(&vout
->lock
);
1433 if (!ovl
->manager
|| !ovl
->manager
->get_manager_info
) {
1434 mutex_unlock(&vout
->lock
);
1439 ovl
->manager
->get_manager_info(ovl
->manager
, &info
);
1440 info
.default_color
= color
;
1441 if (ovl
->manager
->set_manager_info(ovl
->manager
, &info
)) {
1442 mutex_unlock(&vout
->lock
);
1447 vout
->control
[1].value
= color
;
1448 mutex_unlock(&vout
->lock
);
1451 case V4L2_CID_VFLIP
:
1453 struct omapvideo_info
*ovid
;
1454 unsigned int mirror
= a
->value
;
1456 ovid
= &vout
->vid_info
;
1458 mutex_lock(&vout
->lock
);
1459 if (mirror
&& ovid
->rotation_type
== VOUT_ROT_NONE
) {
1460 mutex_unlock(&vout
->lock
);
1465 if (mirror
&& vout
->pix
.pixelformat
== V4L2_PIX_FMT_RGB24
) {
1466 mutex_unlock(&vout
->lock
);
1470 vout
->mirror
= mirror
;
1471 vout
->control
[2].value
= mirror
;
1472 mutex_unlock(&vout
->lock
);
1481 static int vidioc_reqbufs(struct file
*file
, void *fh
,
1482 struct v4l2_requestbuffers
*req
)
1485 unsigned int i
, num_buffers
= 0;
1486 struct omap_vout_device
*vout
= fh
;
1487 struct videobuf_queue
*q
= &vout
->vbq
;
1489 if (req
->type
!= V4L2_BUF_TYPE_VIDEO_OUTPUT
)
1491 /* if memory is not mmp or userptr
1493 if ((V4L2_MEMORY_MMAP
!= req
->memory
) &&
1494 (V4L2_MEMORY_USERPTR
!= req
->memory
))
1497 mutex_lock(&vout
->lock
);
1498 /* Cannot be requested when streaming is on */
1499 if (vout
->streaming
) {
1504 /* If buffers are already allocated free them */
1505 if (q
->bufs
[0] && (V4L2_MEMORY_MMAP
== q
->bufs
[0]->memory
)) {
1506 if (vout
->mmap_count
) {
1510 num_buffers
= (vout
->vid
== OMAP_VIDEO1
) ?
1511 video1_numbuffers
: video2_numbuffers
;
1512 for (i
= num_buffers
; i
< vout
->buffer_allocated
; i
++) {
1513 omap_vout_free_buffer(vout
->buf_virt_addr
[i
],
1515 vout
->buf_virt_addr
[i
] = 0;
1516 vout
->buf_phy_addr
[i
] = 0;
1518 vout
->buffer_allocated
= num_buffers
;
1519 videobuf_mmap_free(q
);
1520 } else if (q
->bufs
[0] && (V4L2_MEMORY_USERPTR
== q
->bufs
[0]->memory
)) {
1521 if (vout
->buffer_allocated
) {
1522 videobuf_mmap_free(q
);
1523 for (i
= 0; i
< vout
->buffer_allocated
; i
++) {
1527 vout
->buffer_allocated
= 0;
1531 /*store the memory type in data structure */
1532 vout
->memory
= req
->memory
;
1534 INIT_LIST_HEAD(&vout
->dma_queue
);
1536 /* call videobuf_reqbufs api */
1537 ret
= videobuf_reqbufs(q
, req
);
1541 vout
->buffer_allocated
= req
->count
;
1544 mutex_unlock(&vout
->lock
);
1548 static int vidioc_querybuf(struct file
*file
, void *fh
,
1549 struct v4l2_buffer
*b
)
1551 struct omap_vout_device
*vout
= fh
;
1553 return videobuf_querybuf(&vout
->vbq
, b
);
1556 static int vidioc_qbuf(struct file
*file
, void *fh
,
1557 struct v4l2_buffer
*buffer
)
1559 struct omap_vout_device
*vout
= fh
;
1560 struct videobuf_queue
*q
= &vout
->vbq
;
1562 if ((V4L2_BUF_TYPE_VIDEO_OUTPUT
!= buffer
->type
) ||
1563 (buffer
->index
>= vout
->buffer_allocated
) ||
1564 (q
->bufs
[buffer
->index
]->memory
!= buffer
->memory
)) {
1567 if (V4L2_MEMORY_USERPTR
== buffer
->memory
) {
1568 if ((buffer
->length
< vout
->pix
.sizeimage
) ||
1569 (0 == buffer
->m
.userptr
)) {
1574 if ((is_rotation_enabled(vout
)) &&
1575 vout
->vrfb_dma_tx
.req_status
== DMA_CHAN_NOT_ALLOTED
) {
1576 v4l2_warn(&vout
->vid_dev
->v4l2_dev
,
1577 "DMA Channel not allocated for Rotation\n");
1581 return videobuf_qbuf(q
, buffer
);
1584 static int vidioc_dqbuf(struct file
*file
, void *fh
, struct v4l2_buffer
*b
)
1586 struct omap_vout_device
*vout
= fh
;
1587 struct videobuf_queue
*q
= &vout
->vbq
;
1592 struct videobuf_buffer
*vb
;
1594 vb
= q
->bufs
[b
->index
];
1596 if (!vout
->streaming
)
1599 if (file
->f_flags
& O_NONBLOCK
)
1600 /* Call videobuf_dqbuf for non blocking mode */
1601 ret
= videobuf_dqbuf(q
, (struct v4l2_buffer
*)b
, 1);
1603 /* Call videobuf_dqbuf for blocking mode */
1604 ret
= videobuf_dqbuf(q
, (struct v4l2_buffer
*)b
, 0);
1606 addr
= (unsigned long) vout
->buf_phy_addr
[vb
->i
];
1607 size
= (unsigned long) vb
->size
;
1608 dma_unmap_single(vout
->vid_dev
->v4l2_dev
.dev
, addr
,
1609 size
, DMA_TO_DEVICE
);
1613 static int vidioc_streamon(struct file
*file
, void *fh
, enum v4l2_buf_type i
)
1616 u32 addr
= 0, mask
= 0;
1617 struct omap_vout_device
*vout
= fh
;
1618 struct videobuf_queue
*q
= &vout
->vbq
;
1619 struct omapvideo_info
*ovid
= &vout
->vid_info
;
1621 mutex_lock(&vout
->lock
);
1623 if (vout
->streaming
) {
1628 ret
= videobuf_streamon(q
);
1632 if (list_empty(&vout
->dma_queue
)) {
1637 /* Get the next frame from the buffer queue */
1638 vout
->next_frm
= vout
->cur_frm
= list_entry(vout
->dma_queue
.next
,
1639 struct videobuf_buffer
, queue
);
1640 /* Remove buffer from the buffer queue */
1641 list_del(&vout
->cur_frm
->queue
);
1642 /* Mark state of the current frame to active */
1643 vout
->cur_frm
->state
= VIDEOBUF_ACTIVE
;
1644 /* Initialize field_id and started member */
1647 /* set flag here. Next QBUF will start DMA */
1648 vout
->streaming
= true;
1650 vout
->first_int
= 1;
1652 if (omap_vout_calculate_offset(vout
)) {
1656 addr
= (unsigned long) vout
->queued_buf_addr
[vout
->cur_frm
->i
]
1657 + vout
->cropped_offset
;
1659 mask
= DISPC_IRQ_VSYNC
| DISPC_IRQ_EVSYNC_EVEN
| DISPC_IRQ_EVSYNC_ODD
1662 /* First save the configuration in ovelray structure */
1663 ret
= omapvid_init(vout
, addr
);
1665 v4l2_err(&vout
->vid_dev
->v4l2_dev
,
1666 "failed to set overlay info\n");
1670 omap_dispc_register_isr(omap_vout_isr
, vout
, mask
);
1672 /* Enable the pipeline and set the Go bit */
1673 ret
= omapvid_apply_changes(vout
);
1675 v4l2_err(&vout
->vid_dev
->v4l2_dev
, "failed to change mode\n");
1677 for (j
= 0; j
< ovid
->num_overlays
; j
++) {
1678 struct omap_overlay
*ovl
= ovid
->overlays
[j
];
1679 struct omap_dss_device
*dssdev
= ovl
->get_device(ovl
);
1682 ret
= ovl
->enable(ovl
);
1692 ret
= videobuf_streamoff(q
);
1694 mutex_unlock(&vout
->lock
);
1698 static int vidioc_streamoff(struct file
*file
, void *fh
, enum v4l2_buf_type i
)
1702 struct omap_vout_device
*vout
= fh
;
1703 struct omapvideo_info
*ovid
= &vout
->vid_info
;
1705 if (!vout
->streaming
)
1708 vout
->streaming
= false;
1709 mask
= DISPC_IRQ_VSYNC
| DISPC_IRQ_EVSYNC_EVEN
| DISPC_IRQ_EVSYNC_ODD
1712 omap_dispc_unregister_isr(omap_vout_isr
, vout
, mask
);
1714 for (j
= 0; j
< ovid
->num_overlays
; j
++) {
1715 struct omap_overlay
*ovl
= ovid
->overlays
[j
];
1716 struct omap_dss_device
*dssdev
= ovl
->get_device(ovl
);
1722 /* Turn of the pipeline */
1723 ret
= omapvid_apply_changes(vout
);
1725 v4l2_err(&vout
->vid_dev
->v4l2_dev
, "failed to change mode in"
1728 INIT_LIST_HEAD(&vout
->dma_queue
);
1729 ret
= videobuf_streamoff(&vout
->vbq
);
1734 static int vidioc_s_fbuf(struct file
*file
, void *fh
,
1735 const struct v4l2_framebuffer
*a
)
1738 struct omap_overlay
*ovl
;
1739 struct omapvideo_info
*ovid
;
1740 struct omap_vout_device
*vout
= fh
;
1741 struct omap_overlay_manager_info info
;
1742 enum omap_dss_trans_key_type key_type
= OMAP_DSS_COLOR_KEY_GFX_DST
;
1744 ovid
= &vout
->vid_info
;
1745 ovl
= ovid
->overlays
[0];
1747 /* OMAP DSS doesn't support Source and Destination color
1749 if ((a
->flags
& V4L2_FBUF_FLAG_SRC_CHROMAKEY
) &&
1750 (a
->flags
& V4L2_FBUF_FLAG_CHROMAKEY
))
1752 /* OMAP DSS Doesn't support the Destination color key
1753 and alpha blending together */
1754 if ((a
->flags
& V4L2_FBUF_FLAG_CHROMAKEY
) &&
1755 (a
->flags
& V4L2_FBUF_FLAG_LOCAL_ALPHA
))
1758 if ((a
->flags
& V4L2_FBUF_FLAG_SRC_CHROMAKEY
)) {
1759 vout
->fbuf
.flags
|= V4L2_FBUF_FLAG_SRC_CHROMAKEY
;
1760 key_type
= OMAP_DSS_COLOR_KEY_VID_SRC
;
1762 vout
->fbuf
.flags
&= ~V4L2_FBUF_FLAG_SRC_CHROMAKEY
;
1764 if ((a
->flags
& V4L2_FBUF_FLAG_CHROMAKEY
)) {
1765 vout
->fbuf
.flags
|= V4L2_FBUF_FLAG_CHROMAKEY
;
1766 key_type
= OMAP_DSS_COLOR_KEY_GFX_DST
;
1768 vout
->fbuf
.flags
&= ~V4L2_FBUF_FLAG_CHROMAKEY
;
1770 if (a
->flags
& (V4L2_FBUF_FLAG_CHROMAKEY
|
1771 V4L2_FBUF_FLAG_SRC_CHROMAKEY
))
1775 if (ovl
->manager
&& ovl
->manager
->get_manager_info
&&
1776 ovl
->manager
->set_manager_info
) {
1778 ovl
->manager
->get_manager_info(ovl
->manager
, &info
);
1779 info
.trans_enabled
= enable
;
1780 info
.trans_key_type
= key_type
;
1781 info
.trans_key
= vout
->win
.chromakey
;
1783 if (ovl
->manager
->set_manager_info(ovl
->manager
, &info
))
1786 if (a
->flags
& V4L2_FBUF_FLAG_LOCAL_ALPHA
) {
1787 vout
->fbuf
.flags
|= V4L2_FBUF_FLAG_LOCAL_ALPHA
;
1790 vout
->fbuf
.flags
&= ~V4L2_FBUF_FLAG_LOCAL_ALPHA
;
1793 if (ovl
->manager
&& ovl
->manager
->get_manager_info
&&
1794 ovl
->manager
->set_manager_info
) {
1795 ovl
->manager
->get_manager_info(ovl
->manager
, &info
);
1796 /* enable this only if there is no zorder cap */
1797 if ((ovl
->caps
& OMAP_DSS_OVL_CAP_ZORDER
) == 0)
1798 info
.partial_alpha_enabled
= enable
;
1799 if (ovl
->manager
->set_manager_info(ovl
->manager
, &info
))
1806 static int vidioc_g_fbuf(struct file
*file
, void *fh
,
1807 struct v4l2_framebuffer
*a
)
1809 struct omap_overlay
*ovl
;
1810 struct omapvideo_info
*ovid
;
1811 struct omap_vout_device
*vout
= fh
;
1812 struct omap_overlay_manager_info info
;
1814 ovid
= &vout
->vid_info
;
1815 ovl
= ovid
->overlays
[0];
1817 /* The video overlay must stay within the framebuffer and can't be
1818 positioned independently. */
1819 a
->flags
= V4L2_FBUF_FLAG_OVERLAY
;
1820 a
->capability
= V4L2_FBUF_CAP_LOCAL_ALPHA
| V4L2_FBUF_CAP_CHROMAKEY
1821 | V4L2_FBUF_CAP_SRC_CHROMAKEY
;
1823 if (ovl
->manager
&& ovl
->manager
->get_manager_info
) {
1824 ovl
->manager
->get_manager_info(ovl
->manager
, &info
);
1825 if (info
.trans_key_type
== OMAP_DSS_COLOR_KEY_VID_SRC
)
1826 a
->flags
|= V4L2_FBUF_FLAG_SRC_CHROMAKEY
;
1827 if (info
.trans_key_type
== OMAP_DSS_COLOR_KEY_GFX_DST
)
1828 a
->flags
|= V4L2_FBUF_FLAG_CHROMAKEY
;
1830 if (ovl
->manager
&& ovl
->manager
->get_manager_info
) {
1831 ovl
->manager
->get_manager_info(ovl
->manager
, &info
);
1832 if (info
.partial_alpha_enabled
)
1833 a
->flags
|= V4L2_FBUF_FLAG_LOCAL_ALPHA
;
1839 static const struct v4l2_ioctl_ops vout_ioctl_ops
= {
1840 .vidioc_querycap
= vidioc_querycap
,
1841 .vidioc_enum_fmt_vid_out
= vidioc_enum_fmt_vid_out
,
1842 .vidioc_g_fmt_vid_out
= vidioc_g_fmt_vid_out
,
1843 .vidioc_try_fmt_vid_out
= vidioc_try_fmt_vid_out
,
1844 .vidioc_s_fmt_vid_out
= vidioc_s_fmt_vid_out
,
1845 .vidioc_queryctrl
= vidioc_queryctrl
,
1846 .vidioc_g_ctrl
= vidioc_g_ctrl
,
1847 .vidioc_s_fbuf
= vidioc_s_fbuf
,
1848 .vidioc_g_fbuf
= vidioc_g_fbuf
,
1849 .vidioc_s_ctrl
= vidioc_s_ctrl
,
1850 .vidioc_try_fmt_vid_out_overlay
= vidioc_try_fmt_vid_overlay
,
1851 .vidioc_s_fmt_vid_out_overlay
= vidioc_s_fmt_vid_overlay
,
1852 .vidioc_g_fmt_vid_out_overlay
= vidioc_g_fmt_vid_overlay
,
1853 .vidioc_cropcap
= vidioc_cropcap
,
1854 .vidioc_g_crop
= vidioc_g_crop
,
1855 .vidioc_s_crop
= vidioc_s_crop
,
1856 .vidioc_reqbufs
= vidioc_reqbufs
,
1857 .vidioc_querybuf
= vidioc_querybuf
,
1858 .vidioc_qbuf
= vidioc_qbuf
,
1859 .vidioc_dqbuf
= vidioc_dqbuf
,
1860 .vidioc_streamon
= vidioc_streamon
,
1861 .vidioc_streamoff
= vidioc_streamoff
,
1864 static const struct v4l2_file_operations omap_vout_fops
= {
1865 .owner
= THIS_MODULE
,
1866 .poll
= omap_vout_poll
,
1867 .unlocked_ioctl
= video_ioctl2
,
1868 .mmap
= omap_vout_mmap
,
1869 .open
= omap_vout_open
,
1870 .release
= omap_vout_release
,
1873 /* Init functions used during driver initialization */
1874 /* Initial setup of video_data */
1875 static int __init
omap_vout_setup_video_data(struct omap_vout_device
*vout
)
1877 struct video_device
*vfd
;
1878 struct v4l2_pix_format
*pix
;
1879 struct v4l2_control
*control
;
1880 struct omap_overlay
*ovl
= vout
->vid_info
.overlays
[0];
1881 struct omap_dss_device
*display
= ovl
->get_device(ovl
);
1883 /* set the default pix */
1886 /* Set the default picture of QVGA */
1887 pix
->width
= QQVGA_WIDTH
;
1888 pix
->height
= QQVGA_HEIGHT
;
1890 /* Default pixel format is RGB 5-6-5 */
1891 pix
->pixelformat
= V4L2_PIX_FMT_RGB565
;
1892 pix
->field
= V4L2_FIELD_ANY
;
1893 pix
->bytesperline
= pix
->width
* 2;
1894 pix
->sizeimage
= pix
->bytesperline
* pix
->height
;
1895 pix
->colorspace
= V4L2_COLORSPACE_JPEG
;
1897 vout
->bpp
= RGB565_BPP
;
1898 vout
->fbuf
.fmt
.width
= display
->panel
.timings
.x_res
;
1899 vout
->fbuf
.fmt
.height
= display
->panel
.timings
.y_res
;
1901 /* Set the data structures for the overlay parameters*/
1902 vout
->win
.global_alpha
= 255;
1903 vout
->fbuf
.flags
= 0;
1904 vout
->fbuf
.capability
= V4L2_FBUF_CAP_LOCAL_ALPHA
|
1905 V4L2_FBUF_CAP_SRC_CHROMAKEY
| V4L2_FBUF_CAP_CHROMAKEY
;
1906 vout
->win
.chromakey
= 0;
1908 omap_vout_new_format(pix
, &vout
->fbuf
, &vout
->crop
, &vout
->win
);
1910 /*Initialize the control variables for
1911 rotation, flipping and background color. */
1912 control
= vout
->control
;
1913 control
[0].id
= V4L2_CID_ROTATE
;
1914 control
[0].value
= 0;
1916 vout
->mirror
= false;
1917 vout
->control
[2].id
= V4L2_CID_HFLIP
;
1918 vout
->control
[2].value
= 0;
1919 if (vout
->vid_info
.rotation_type
== VOUT_ROT_VRFB
)
1922 control
[1].id
= V4L2_CID_BG_COLOR
;
1923 control
[1].value
= 0;
1925 /* initialize the video_device struct */
1926 vfd
= vout
->vfd
= video_device_alloc();
1929 printk(KERN_ERR VOUT_NAME
": could not allocate"
1930 " video device struct\n");
1933 vfd
->release
= video_device_release
;
1934 vfd
->ioctl_ops
= &vout_ioctl_ops
;
1936 strlcpy(vfd
->name
, VOUT_NAME
, sizeof(vfd
->name
));
1938 vfd
->fops
= &omap_vout_fops
;
1939 vfd
->v4l2_dev
= &vout
->vid_dev
->v4l2_dev
;
1940 vfd
->vfl_dir
= VFL_DIR_TX
;
1941 mutex_init(&vout
->lock
);
1948 /* Setup video buffers */
1949 static int __init
omap_vout_setup_video_bufs(struct platform_device
*pdev
,
1954 struct omapvideo_info
*ovid
;
1955 struct omap_vout_device
*vout
;
1956 struct v4l2_device
*v4l2_dev
= platform_get_drvdata(pdev
);
1957 struct omap2video_device
*vid_dev
=
1958 container_of(v4l2_dev
, struct omap2video_device
, v4l2_dev
);
1960 vout
= vid_dev
->vouts
[vid_num
];
1961 ovid
= &vout
->vid_info
;
1963 numbuffers
= (vid_num
== 0) ? video1_numbuffers
: video2_numbuffers
;
1964 vout
->buffer_size
= (vid_num
== 0) ? video1_bufsize
: video2_bufsize
;
1965 dev_info(&pdev
->dev
, "Buffer Size = %d\n", vout
->buffer_size
);
1967 for (i
= 0; i
< numbuffers
; i
++) {
1968 vout
->buf_virt_addr
[i
] =
1969 omap_vout_alloc_buffer(vout
->buffer_size
,
1970 (u32
*) &vout
->buf_phy_addr
[i
]);
1971 if (!vout
->buf_virt_addr
[i
]) {
1978 vout
->cropped_offset
= 0;
1980 if (ovid
->rotation_type
== VOUT_ROT_VRFB
) {
1981 bool static_vrfb_allocation
= (vid_num
== 0) ?
1982 vid1_static_vrfb_alloc
: vid2_static_vrfb_alloc
;
1983 ret
= omap_vout_setup_vrfb_bufs(pdev
, vid_num
,
1984 static_vrfb_allocation
);
1990 for (i
= 0; i
< numbuffers
; i
++) {
1991 omap_vout_free_buffer(vout
->buf_virt_addr
[i
],
1993 vout
->buf_virt_addr
[i
] = 0;
1994 vout
->buf_phy_addr
[i
] = 0;
2000 /* Create video out devices */
2001 static int __init
omap_vout_create_video_devices(struct platform_device
*pdev
)
2004 struct omap_vout_device
*vout
;
2005 struct video_device
*vfd
= NULL
;
2006 struct v4l2_device
*v4l2_dev
= platform_get_drvdata(pdev
);
2007 struct omap2video_device
*vid_dev
= container_of(v4l2_dev
,
2008 struct omap2video_device
, v4l2_dev
);
2010 for (k
= 0; k
< pdev
->num_resources
; k
++) {
2012 vout
= kzalloc(sizeof(struct omap_vout_device
), GFP_KERNEL
);
2014 dev_err(&pdev
->dev
, ": could not allocate memory\n");
2019 vid_dev
->vouts
[k
] = vout
;
2020 vout
->vid_dev
= vid_dev
;
2021 /* Select video2 if only 1 overlay is controlled by V4L2 */
2022 if (pdev
->num_resources
== 1)
2023 vout
->vid_info
.overlays
[0] = vid_dev
->overlays
[k
+ 2];
2025 /* Else select video1 and video2 one by one. */
2026 vout
->vid_info
.overlays
[0] = vid_dev
->overlays
[k
+ 1];
2027 vout
->vid_info
.num_overlays
= 1;
2028 vout
->vid_info
.id
= k
+ 1;
2030 /* Set VRFB as rotation_type for omap2 and omap3 */
2031 if (omap_vout_dss_omap24xx() || omap_vout_dss_omap34xx())
2032 vout
->vid_info
.rotation_type
= VOUT_ROT_VRFB
;
2034 /* Setup the default configuration for the video devices
2036 if (omap_vout_setup_video_data(vout
) != 0) {
2041 /* Allocate default number of buffers for the video streaming
2042 * and reserve the VRFB space for rotation
2044 if (omap_vout_setup_video_bufs(pdev
, k
) != 0) {
2049 /* Register the Video device with V4L2
2052 if (video_register_device(vfd
, VFL_TYPE_GRABBER
, -1) < 0) {
2053 dev_err(&pdev
->dev
, ": Could not register "
2054 "Video for Linux device\n");
2059 video_set_drvdata(vfd
, vout
);
2061 dev_info(&pdev
->dev
, ": registered and initialized"
2062 " video device %d\n", vfd
->minor
);
2063 if (k
== (pdev
->num_resources
- 1))
2068 if (vout
->vid_info
.rotation_type
== VOUT_ROT_VRFB
)
2069 omap_vout_release_vrfb(vout
);
2070 omap_vout_free_buffers(vout
);
2072 video_device_release(vfd
);
2080 /* Driver functions */
2081 static void omap_vout_cleanup_device(struct omap_vout_device
*vout
)
2083 struct video_device
*vfd
;
2084 struct omapvideo_info
*ovid
;
2090 ovid
= &vout
->vid_info
;
2092 if (!video_is_registered(vfd
)) {
2094 * The device was never registered, so release the
2095 * video_device struct directly.
2097 video_device_release(vfd
);
2100 * The unregister function will release the video_device
2101 * struct as well as unregistering it.
2103 video_unregister_device(vfd
);
2106 if (ovid
->rotation_type
== VOUT_ROT_VRFB
) {
2107 omap_vout_release_vrfb(vout
);
2108 /* Free the VRFB buffer if allocated
2111 if (vout
->vrfb_static_allocation
)
2112 omap_vout_free_vrfb_buffers(vout
);
2114 omap_vout_free_buffers(vout
);
2119 static int omap_vout_remove(struct platform_device
*pdev
)
2122 struct v4l2_device
*v4l2_dev
= platform_get_drvdata(pdev
);
2123 struct omap2video_device
*vid_dev
= container_of(v4l2_dev
, struct
2124 omap2video_device
, v4l2_dev
);
2126 v4l2_device_unregister(v4l2_dev
);
2127 for (k
= 0; k
< pdev
->num_resources
; k
++)
2128 omap_vout_cleanup_device(vid_dev
->vouts
[k
]);
2130 for (k
= 0; k
< vid_dev
->num_displays
; k
++) {
2131 if (vid_dev
->displays
[k
]->state
!= OMAP_DSS_DISPLAY_DISABLED
)
2132 vid_dev
->displays
[k
]->driver
->disable(vid_dev
->displays
[k
]);
2134 omap_dss_put_device(vid_dev
->displays
[k
]);
2140 static int __init
omap_vout_probe(struct platform_device
*pdev
)
2143 struct omap_overlay
*ovl
;
2144 struct omap_dss_device
*dssdev
= NULL
;
2145 struct omap_dss_device
*def_display
;
2146 struct omap2video_device
*vid_dev
= NULL
;
2148 if (omapdss_is_initialized() == false)
2149 return -EPROBE_DEFER
;
2151 ret
= omapdss_compat_init();
2153 dev_err(&pdev
->dev
, "failed to init dss\n");
2157 if (pdev
->num_resources
== 0) {
2158 dev_err(&pdev
->dev
, "probed for an unknown device\n");
2163 vid_dev
= kzalloc(sizeof(struct omap2video_device
), GFP_KERNEL
);
2164 if (vid_dev
== NULL
) {
2169 vid_dev
->num_displays
= 0;
2170 for_each_dss_dev(dssdev
) {
2171 omap_dss_get_device(dssdev
);
2173 if (!dssdev
->driver
) {
2174 dev_warn(&pdev
->dev
, "no driver for display: %s\n",
2176 omap_dss_put_device(dssdev
);
2180 vid_dev
->displays
[vid_dev
->num_displays
++] = dssdev
;
2183 if (vid_dev
->num_displays
== 0) {
2184 dev_err(&pdev
->dev
, "no displays\n");
2189 vid_dev
->num_overlays
= omap_dss_get_num_overlays();
2190 for (i
= 0; i
< vid_dev
->num_overlays
; i
++)
2191 vid_dev
->overlays
[i
] = omap_dss_get_overlay(i
);
2193 vid_dev
->num_managers
= omap_dss_get_num_overlay_managers();
2194 for (i
= 0; i
< vid_dev
->num_managers
; i
++)
2195 vid_dev
->managers
[i
] = omap_dss_get_overlay_manager(i
);
2197 /* Get the Video1 overlay and video2 overlay.
2198 * Setup the Display attached to that overlays
2200 for (i
= 1; i
< vid_dev
->num_overlays
; i
++) {
2201 ovl
= omap_dss_get_overlay(i
);
2202 dssdev
= ovl
->get_device(ovl
);
2205 def_display
= dssdev
;
2207 dev_warn(&pdev
->dev
, "cannot find display\n");
2211 struct omap_dss_driver
*dssdrv
= def_display
->driver
;
2213 ret
= dssdrv
->enable(def_display
);
2215 /* Here we are not considering a error
2216 * as display may be enabled by frame
2219 dev_warn(&pdev
->dev
,
2220 "'%s' Display already enabled\n",
2226 if (v4l2_device_register(&pdev
->dev
, &vid_dev
->v4l2_dev
) < 0) {
2227 dev_err(&pdev
->dev
, "v4l2_device_register failed\n");
2232 ret
= omap_vout_create_video_devices(pdev
);
2236 for (i
= 0; i
< vid_dev
->num_displays
; i
++) {
2237 struct omap_dss_device
*display
= vid_dev
->displays
[i
];
2239 if (display
->driver
->update
)
2240 display
->driver
->update(display
, 0, 0,
2241 display
->panel
.timings
.x_res
,
2242 display
->panel
.timings
.y_res
);
2247 v4l2_device_unregister(&vid_dev
->v4l2_dev
);
2249 for (i
= 1; i
< vid_dev
->num_overlays
; i
++) {
2251 ovl
= omap_dss_get_overlay(i
);
2252 dssdev
= ovl
->get_device(ovl
);
2255 def_display
= dssdev
;
2257 if (def_display
&& def_display
->driver
)
2258 def_display
->driver
->disable(def_display
);
2263 omapdss_compat_uninit();
2267 static struct platform_driver omap_vout_driver
= {
2271 .remove
= omap_vout_remove
,
2274 static int __init
omap_vout_init(void)
2276 if (platform_driver_probe(&omap_vout_driver
, omap_vout_probe
) != 0) {
2277 printk(KERN_ERR VOUT_NAME
":Could not register Video driver\n");
2283 static void omap_vout_cleanup(void)
2285 platform_driver_unregister(&omap_vout_driver
);
2288 late_initcall(omap_vout_init
);
2289 module_exit(omap_vout_cleanup
);