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>
48 #include <plat/vrfb.h>
49 #include <video/omapdss.h>
51 #include "omap_voutlib.h"
52 #include "omap_voutdef.h"
53 #include "omap_vout_vrfb.h"
55 MODULE_AUTHOR("Texas Instruments");
56 MODULE_DESCRIPTION("OMAP Video for Linux Video out driver");
57 MODULE_LICENSE("GPL");
59 /* Driver Configuration macros */
60 #define VOUT_NAME "omap_vout"
62 enum omap_vout_channels
{
67 static struct videobuf_queue_ops video_vbq_ops
;
68 /* Variables configurable through module params*/
69 static u32 video1_numbuffers
= 3;
70 static u32 video2_numbuffers
= 3;
71 static u32 video1_bufsize
= OMAP_VOUT_MAX_BUF_SIZE
;
72 static u32 video2_bufsize
= OMAP_VOUT_MAX_BUF_SIZE
;
73 static u32 vid1_static_vrfb_alloc
;
74 static u32 vid2_static_vrfb_alloc
;
77 /* Module parameters */
78 module_param(video1_numbuffers
, uint
, S_IRUGO
);
79 MODULE_PARM_DESC(video1_numbuffers
,
80 "Number of buffers to be allocated at init time for Video1 device.");
82 module_param(video2_numbuffers
, uint
, S_IRUGO
);
83 MODULE_PARM_DESC(video2_numbuffers
,
84 "Number of buffers to be allocated at init time for Video2 device.");
86 module_param(video1_bufsize
, uint
, S_IRUGO
);
87 MODULE_PARM_DESC(video1_bufsize
,
88 "Size of the buffer to be allocated for video1 device");
90 module_param(video2_bufsize
, uint
, S_IRUGO
);
91 MODULE_PARM_DESC(video2_bufsize
,
92 "Size of the buffer to be allocated for video2 device");
94 module_param(vid1_static_vrfb_alloc
, bool, S_IRUGO
);
95 MODULE_PARM_DESC(vid1_static_vrfb_alloc
,
96 "Static allocation of the VRFB buffer for video1 device");
98 module_param(vid2_static_vrfb_alloc
, bool, S_IRUGO
);
99 MODULE_PARM_DESC(vid2_static_vrfb_alloc
,
100 "Static allocation of the VRFB buffer for video2 device");
102 module_param(debug
, bool, S_IRUGO
);
103 MODULE_PARM_DESC(debug
, "Debug level (0-1)");
105 /* list of image formats supported by OMAP2 video pipelines */
106 static const struct v4l2_fmtdesc omap_formats
[] = {
108 /* Note: V4L2 defines RGB565 as:
111 * g2 g1 g0 r4 r3 r2 r1 r0 b4 b3 b2 b1 b0 g5 g4 g3
113 * We interpret RGB565 as:
116 * g2 g1 g0 b4 b3 b2 b1 b0 r4 r3 r2 r1 r0 g5 g4 g3
118 .description
= "RGB565, le",
119 .pixelformat
= V4L2_PIX_FMT_RGB565
,
122 /* Note: V4L2 defines RGB32 as: RGB-8-8-8-8 we use
123 * this for RGB24 unpack mode, the last 8 bits are ignored
125 .description
= "RGB32, le",
126 .pixelformat
= V4L2_PIX_FMT_RGB32
,
129 /* Note: V4L2 defines RGB24 as: RGB-8-8-8 we use
130 * this for RGB24 packed mode
133 .description
= "RGB24, le",
134 .pixelformat
= V4L2_PIX_FMT_RGB24
,
137 .description
= "YUYV (YUV 4:2:2), packed",
138 .pixelformat
= V4L2_PIX_FMT_YUYV
,
141 .description
= "UYVY, packed",
142 .pixelformat
= V4L2_PIX_FMT_UYVY
,
146 #define NUM_OUTPUT_FORMATS (ARRAY_SIZE(omap_formats))
151 static int omap_vout_try_format(struct v4l2_pix_format
*pix
)
155 pix
->height
= clamp(pix
->height
, (u32
)VID_MIN_HEIGHT
,
156 (u32
)VID_MAX_HEIGHT
);
157 pix
->width
= clamp(pix
->width
, (u32
)VID_MIN_WIDTH
, (u32
)VID_MAX_WIDTH
);
159 for (ifmt
= 0; ifmt
< NUM_OUTPUT_FORMATS
; ifmt
++) {
160 if (pix
->pixelformat
== omap_formats
[ifmt
].pixelformat
)
164 if (ifmt
== NUM_OUTPUT_FORMATS
)
167 pix
->pixelformat
= omap_formats
[ifmt
].pixelformat
;
168 pix
->field
= V4L2_FIELD_ANY
;
171 switch (pix
->pixelformat
) {
172 case V4L2_PIX_FMT_YUYV
:
173 case V4L2_PIX_FMT_UYVY
:
175 pix
->colorspace
= V4L2_COLORSPACE_JPEG
;
178 case V4L2_PIX_FMT_RGB565
:
179 case V4L2_PIX_FMT_RGB565X
:
180 pix
->colorspace
= V4L2_COLORSPACE_SRGB
;
183 case V4L2_PIX_FMT_RGB24
:
184 pix
->colorspace
= V4L2_COLORSPACE_SRGB
;
187 case V4L2_PIX_FMT_RGB32
:
188 case V4L2_PIX_FMT_BGR32
:
189 pix
->colorspace
= V4L2_COLORSPACE_SRGB
;
193 pix
->bytesperline
= pix
->width
* bpp
;
194 pix
->sizeimage
= pix
->bytesperline
* pix
->height
;
200 * omap_vout_uservirt_to_phys: This inline function is used to convert user
201 * space virtual address to physical address.
203 static u32
omap_vout_uservirt_to_phys(u32 virtp
)
205 unsigned long physp
= 0;
206 struct vm_area_struct
*vma
;
207 struct mm_struct
*mm
= current
->mm
;
209 vma
= find_vma(mm
, virtp
);
210 /* For kernel direct-mapped memory, take the easy way */
211 if (virtp
>= PAGE_OFFSET
) {
212 physp
= virt_to_phys((void *) virtp
);
213 } else 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
);
218 /* otherwise, use get_user_pages() for general userland pages */
219 int res
, nr_pages
= 1;
221 down_read(¤t
->mm
->mmap_sem
);
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
) {
339 case V4L2_PIX_FMT_YUYV
:
340 mode
= OMAP_DSS_COLOR_YUV2
;
342 case V4L2_PIX_FMT_UYVY
:
343 mode
= OMAP_DSS_COLOR_UYVY
;
345 case V4L2_PIX_FMT_RGB565
:
346 mode
= OMAP_DSS_COLOR_RGB16
;
348 case V4L2_PIX_FMT_RGB24
:
349 mode
= OMAP_DSS_COLOR_RGB24P
;
351 case V4L2_PIX_FMT_RGB32
:
352 mode
= (ovl
->id
== OMAP_DSS_VIDEO1
) ?
353 OMAP_DSS_COLOR_RGB24U
: OMAP_DSS_COLOR_ARGB32
;
355 case V4L2_PIX_FMT_BGR32
:
356 mode
= OMAP_DSS_COLOR_RGBX32
;
367 static int omapvid_setup_overlay(struct omap_vout_device
*vout
,
368 struct omap_overlay
*ovl
, int posx
, int posy
, int outw
,
372 struct omap_overlay_info info
;
373 int cropheight
, cropwidth
, pixheight
, pixwidth
;
375 if ((ovl
->caps
& OMAP_DSS_OVL_CAP_SCALE
) == 0 &&
376 (outw
!= vout
->pix
.width
|| outh
!= vout
->pix
.height
)) {
381 vout
->dss_mode
= video_mode_to_dss_mode(vout
);
382 if (vout
->dss_mode
== -EINVAL
) {
387 /* Setup the input plane parameters according to
388 * rotation value selected.
390 if (is_rotation_90_or_270(vout
)) {
391 cropheight
= vout
->crop
.width
;
392 cropwidth
= vout
->crop
.height
;
393 pixheight
= vout
->pix
.width
;
394 pixwidth
= vout
->pix
.height
;
396 cropheight
= vout
->crop
.height
;
397 cropwidth
= vout
->crop
.width
;
398 pixheight
= vout
->pix
.height
;
399 pixwidth
= vout
->pix
.width
;
402 ovl
->get_overlay_info(ovl
, &info
);
404 info
.width
= cropwidth
;
405 info
.height
= cropheight
;
406 info
.color_mode
= vout
->dss_mode
;
407 info
.mirror
= vout
->mirror
;
410 info
.out_width
= outw
;
411 info
.out_height
= outh
;
412 info
.global_alpha
= vout
->win
.global_alpha
;
413 if (!is_rotation_enabled(vout
)) {
415 info
.rotation_type
= OMAP_DSS_ROT_DMA
;
416 info
.screen_width
= pixwidth
;
418 info
.rotation
= vout
->rotation
;
419 info
.rotation_type
= OMAP_DSS_ROT_VRFB
;
420 info
.screen_width
= 2048;
423 v4l2_dbg(1, debug
, &vout
->vid_dev
->v4l2_dev
,
424 "%s enable=%d addr=%x width=%d\n height=%d color_mode=%d\n"
425 "rotation=%d mirror=%d posx=%d posy=%d out_width = %d \n"
426 "out_height=%d rotation_type=%d screen_width=%d\n",
427 __func__
, info
.enabled
, info
.paddr
, info
.width
, info
.height
,
428 info
.color_mode
, info
.rotation
, info
.mirror
, info
.pos_x
,
429 info
.pos_y
, info
.out_width
, info
.out_height
, info
.rotation_type
,
432 ret
= ovl
->set_overlay_info(ovl
, &info
);
439 v4l2_warn(&vout
->vid_dev
->v4l2_dev
, "setup_overlay failed\n");
444 * Initialize the overlay structure
446 static int omapvid_init(struct omap_vout_device
*vout
, u32 addr
)
449 struct v4l2_window
*win
;
450 struct omap_overlay
*ovl
;
451 int posx
, posy
, outw
, outh
, temp
;
452 struct omap_video_timings
*timing
;
453 struct omapvideo_info
*ovid
= &vout
->vid_info
;
456 for (i
= 0; i
< ovid
->num_overlays
; i
++) {
457 ovl
= ovid
->overlays
[i
];
458 if (!ovl
->manager
|| !ovl
->manager
->device
)
461 timing
= &ovl
->manager
->device
->panel
.timings
;
464 outh
= win
->w
.height
;
465 switch (vout
->rotation
) {
466 case dss_rotation_90_degree
:
467 /* Invert the height and width for 90
468 * and 270 degree rotation
473 posy
= (timing
->y_res
- win
->w
.width
) - win
->w
.left
;
477 case dss_rotation_180_degree
:
478 posx
= (timing
->x_res
- win
->w
.width
) - win
->w
.left
;
479 posy
= (timing
->y_res
- win
->w
.height
) - win
->w
.top
;
482 case dss_rotation_270_degree
:
487 posx
= (timing
->x_res
- win
->w
.height
) - win
->w
.top
;
496 ret
= omapvid_setup_overlay(vout
, ovl
, posx
, posy
,
499 goto omapvid_init_err
;
504 v4l2_warn(&vout
->vid_dev
->v4l2_dev
, "apply_changes failed\n");
509 * Apply the changes set the go bit of DSS
511 static int omapvid_apply_changes(struct omap_vout_device
*vout
)
514 struct omap_overlay
*ovl
;
515 struct omapvideo_info
*ovid
= &vout
->vid_info
;
517 for (i
= 0; i
< ovid
->num_overlays
; i
++) {
518 ovl
= ovid
->overlays
[i
];
519 if (!ovl
->manager
|| !ovl
->manager
->device
)
521 ovl
->manager
->apply(ovl
->manager
);
527 static int omapvid_handle_interlace_display(struct omap_vout_device
*vout
,
528 unsigned int irqstatus
, struct timeval timevalue
)
532 if (vout
->first_int
) {
537 if (irqstatus
& DISPC_IRQ_EVSYNC_ODD
)
539 else if (irqstatus
& DISPC_IRQ_EVSYNC_EVEN
)
545 if (fid
!= vout
->field_id
) {
547 vout
->field_id
= fid
;
548 } else if (0 == fid
) {
549 if (vout
->cur_frm
== vout
->next_frm
)
552 vout
->cur_frm
->ts
= timevalue
;
553 vout
->cur_frm
->state
= VIDEOBUF_DONE
;
554 wake_up_interruptible(&vout
->cur_frm
->done
);
555 vout
->cur_frm
= vout
->next_frm
;
557 if (list_empty(&vout
->dma_queue
) ||
558 (vout
->cur_frm
!= vout
->next_frm
))
562 return vout
->field_id
;
567 static void omap_vout_isr(void *arg
, unsigned int irqstatus
)
569 int ret
, fid
, mgr_id
;
571 struct omap_overlay
*ovl
;
572 struct timeval timevalue
;
573 struct omapvideo_info
*ovid
;
574 struct omap_dss_device
*cur_display
;
575 struct omap_vout_device
*vout
= (struct omap_vout_device
*)arg
;
577 if (!vout
->streaming
)
580 ovid
= &vout
->vid_info
;
581 ovl
= ovid
->overlays
[0];
582 /* get the display device attached to the overlay */
583 if (!ovl
->manager
|| !ovl
->manager
->device
)
586 mgr_id
= ovl
->manager
->id
;
587 cur_display
= ovl
->manager
->device
;
589 spin_lock(&vout
->vbq_lock
);
590 do_gettimeofday(&timevalue
);
592 switch (cur_display
->type
) {
593 case OMAP_DISPLAY_TYPE_DSI
:
594 case OMAP_DISPLAY_TYPE_DPI
:
595 if (mgr_id
== OMAP_DSS_CHANNEL_LCD
)
596 irq
= DISPC_IRQ_VSYNC
;
597 else if (mgr_id
== OMAP_DSS_CHANNEL_LCD2
)
598 irq
= DISPC_IRQ_VSYNC2
;
602 if (!(irqstatus
& irq
))
605 case OMAP_DISPLAY_TYPE_VENC
:
606 fid
= omapvid_handle_interlace_display(vout
, irqstatus
,
611 case OMAP_DISPLAY_TYPE_HDMI
:
612 if (!(irqstatus
& DISPC_IRQ_EVSYNC_EVEN
))
619 if (!vout
->first_int
&& (vout
->cur_frm
!= vout
->next_frm
)) {
620 vout
->cur_frm
->ts
= timevalue
;
621 vout
->cur_frm
->state
= VIDEOBUF_DONE
;
622 wake_up_interruptible(&vout
->cur_frm
->done
);
623 vout
->cur_frm
= vout
->next_frm
;
627 if (list_empty(&vout
->dma_queue
))
630 vout
->next_frm
= list_entry(vout
->dma_queue
.next
,
631 struct videobuf_buffer
, queue
);
632 list_del(&vout
->next_frm
->queue
);
634 vout
->next_frm
->state
= VIDEOBUF_ACTIVE
;
636 addr
= (unsigned long) vout
->queued_buf_addr
[vout
->next_frm
->i
]
637 + vout
->cropped_offset
;
639 /* First save the configuration in ovelray structure */
640 ret
= omapvid_init(vout
, addr
);
642 printk(KERN_ERR VOUT_NAME
643 "failed to set overlay info\n");
644 /* Enable the pipeline and set the Go bit */
645 ret
= omapvid_apply_changes(vout
);
647 printk(KERN_ERR VOUT_NAME
"failed to change mode\n");
650 spin_unlock(&vout
->vbq_lock
);
653 /* Video buffer call backs */
656 * Buffer setup function is called by videobuf layer when REQBUF ioctl is
657 * called. This is used to setup buffers and return size and count of
658 * buffers allocated. After the call to this buffer, videobuf layer will
659 * setup buffer queue depending on the size and count of buffers
661 static int omap_vout_buffer_setup(struct videobuf_queue
*q
, unsigned int *count
,
664 int startindex
= 0, i
, j
;
665 u32 phy_addr
= 0, virt_addr
= 0;
666 struct omap_vout_device
*vout
= q
->priv_data
;
667 struct omapvideo_info
*ovid
= &vout
->vid_info
;
668 int vid_max_buf_size
;
673 vid_max_buf_size
= vout
->vid
== OMAP_VIDEO1
? video1_bufsize
:
676 if (V4L2_BUF_TYPE_VIDEO_OUTPUT
!= q
->type
)
679 startindex
= (vout
->vid
== OMAP_VIDEO1
) ?
680 video1_numbuffers
: video2_numbuffers
;
681 if (V4L2_MEMORY_MMAP
== vout
->memory
&& *count
< startindex
)
684 if (ovid
->rotation_type
== VOUT_ROT_VRFB
) {
685 if (omap_vout_vrfb_buffer_setup(vout
, count
, startindex
))
689 if (V4L2_MEMORY_MMAP
!= vout
->memory
)
692 /* Now allocated the V4L2 buffers */
693 *size
= PAGE_ALIGN(vout
->pix
.width
* vout
->pix
.height
* vout
->bpp
);
694 startindex
= (vout
->vid
== OMAP_VIDEO1
) ?
695 video1_numbuffers
: video2_numbuffers
;
697 /* Check the size of the buffer */
698 if (*size
> vid_max_buf_size
) {
699 v4l2_err(&vout
->vid_dev
->v4l2_dev
,
700 "buffer allocation mismatch [%u] [%u]\n",
701 *size
, vout
->buffer_size
);
705 for (i
= startindex
; i
< *count
; i
++) {
706 vout
->buffer_size
= *size
;
708 virt_addr
= omap_vout_alloc_buffer(vout
->buffer_size
,
711 if (ovid
->rotation_type
== VOUT_ROT_NONE
) {
714 if (!is_rotation_enabled(vout
))
716 /* Free the VRFB buffers if no space for V4L2 buffers */
717 for (j
= i
; j
< *count
; j
++) {
718 omap_vout_free_buffer(
719 vout
->smsshado_virt_addr
[j
],
720 vout
->smsshado_size
);
721 vout
->smsshado_virt_addr
[j
] = 0;
722 vout
->smsshado_phy_addr
[j
] = 0;
726 vout
->buf_virt_addr
[i
] = virt_addr
;
727 vout
->buf_phy_addr
[i
] = phy_addr
;
729 *count
= vout
->buffer_allocated
= i
;
735 * Free the V4L2 buffers additionally allocated than default
738 static void omap_vout_free_extra_buffers(struct omap_vout_device
*vout
)
740 int num_buffers
= 0, i
;
742 num_buffers
= (vout
->vid
== OMAP_VIDEO1
) ?
743 video1_numbuffers
: video2_numbuffers
;
745 for (i
= num_buffers
; i
< vout
->buffer_allocated
; i
++) {
746 if (vout
->buf_virt_addr
[i
])
747 omap_vout_free_buffer(vout
->buf_virt_addr
[i
],
750 vout
->buf_virt_addr
[i
] = 0;
751 vout
->buf_phy_addr
[i
] = 0;
753 vout
->buffer_allocated
= num_buffers
;
757 * This function will be called when VIDIOC_QBUF ioctl is called.
758 * It prepare buffers before give out for the display. This function
759 * converts user space virtual address into physical address if userptr memory
760 * exchange mechanism is used. If rotation is enabled, it copies entire
761 * buffer into VRFB memory space before giving it to the DSS.
763 static int omap_vout_buffer_prepare(struct videobuf_queue
*q
,
764 struct videobuf_buffer
*vb
,
765 enum v4l2_field field
)
767 struct omap_vout_device
*vout
= q
->priv_data
;
768 struct omapvideo_info
*ovid
= &vout
->vid_info
;
770 if (VIDEOBUF_NEEDS_INIT
== vb
->state
) {
771 vb
->width
= vout
->pix
.width
;
772 vb
->height
= vout
->pix
.height
;
773 vb
->size
= vb
->width
* vb
->height
* vout
->bpp
;
776 vb
->state
= VIDEOBUF_PREPARED
;
777 /* if user pointer memory mechanism is used, get the physical
778 * address of the buffer
780 if (V4L2_MEMORY_USERPTR
== vb
->memory
) {
783 /* Physical address */
784 vout
->queued_buf_addr
[vb
->i
] = (u8
*)
785 omap_vout_uservirt_to_phys(vb
->baddr
);
790 addr
= (unsigned long) vout
->buf_virt_addr
[vb
->i
];
791 size
= (unsigned long) vb
->size
;
793 dma_addr
= dma_map_single(vout
->vid_dev
->v4l2_dev
.dev
, (void *) addr
,
794 size
, DMA_TO_DEVICE
);
795 if (dma_mapping_error(vout
->vid_dev
->v4l2_dev
.dev
, dma_addr
))
796 v4l2_err(&vout
->vid_dev
->v4l2_dev
, "dma_map_single failed\n");
798 vout
->queued_buf_addr
[vb
->i
] = (u8
*)vout
->buf_phy_addr
[vb
->i
];
801 if (ovid
->rotation_type
== VOUT_ROT_VRFB
)
802 return omap_vout_prepare_vrfb(vout
, vb
);
808 * Buffer queue function will be called from the videobuf layer when _QBUF
809 * ioctl is called. It is used to enqueue buffer, which is ready to be
812 static void omap_vout_buffer_queue(struct videobuf_queue
*q
,
813 struct videobuf_buffer
*vb
)
815 struct omap_vout_device
*vout
= q
->priv_data
;
817 /* Driver is also maintainig a queue. So enqueue buffer in the driver
819 list_add_tail(&vb
->queue
, &vout
->dma_queue
);
821 vb
->state
= VIDEOBUF_QUEUED
;
825 * Buffer release function is called from videobuf layer to release buffer
826 * which are already allocated
828 static void omap_vout_buffer_release(struct videobuf_queue
*q
,
829 struct videobuf_buffer
*vb
)
831 struct omap_vout_device
*vout
= q
->priv_data
;
833 vb
->state
= VIDEOBUF_NEEDS_INIT
;
835 if (V4L2_MEMORY_MMAP
!= vout
->memory
)
842 static unsigned int omap_vout_poll(struct file
*file
,
843 struct poll_table_struct
*wait
)
845 struct omap_vout_device
*vout
= file
->private_data
;
846 struct videobuf_queue
*q
= &vout
->vbq
;
848 return videobuf_poll_stream(file
, q
, wait
);
851 static void omap_vout_vm_open(struct vm_area_struct
*vma
)
853 struct omap_vout_device
*vout
= vma
->vm_private_data
;
855 v4l2_dbg(1, debug
, &vout
->vid_dev
->v4l2_dev
,
856 "vm_open [vma=%08lx-%08lx]\n", vma
->vm_start
, vma
->vm_end
);
860 static void omap_vout_vm_close(struct vm_area_struct
*vma
)
862 struct omap_vout_device
*vout
= vma
->vm_private_data
;
864 v4l2_dbg(1, debug
, &vout
->vid_dev
->v4l2_dev
,
865 "vm_close [vma=%08lx-%08lx]\n", vma
->vm_start
, vma
->vm_end
);
869 static struct vm_operations_struct omap_vout_vm_ops
= {
870 .open
= omap_vout_vm_open
,
871 .close
= omap_vout_vm_close
,
874 static int omap_vout_mmap(struct file
*file
, struct vm_area_struct
*vma
)
878 unsigned long start
= vma
->vm_start
;
879 unsigned long size
= (vma
->vm_end
- vma
->vm_start
);
880 struct omap_vout_device
*vout
= file
->private_data
;
881 struct videobuf_queue
*q
= &vout
->vbq
;
883 v4l2_dbg(1, debug
, &vout
->vid_dev
->v4l2_dev
,
884 " %s pgoff=0x%lx, start=0x%lx, end=0x%lx\n", __func__
,
885 vma
->vm_pgoff
, vma
->vm_start
, vma
->vm_end
);
887 /* look for the buffer to map */
888 for (i
= 0; i
< VIDEO_MAX_FRAME
; i
++) {
889 if (NULL
== q
->bufs
[i
])
891 if (V4L2_MEMORY_MMAP
!= q
->bufs
[i
]->memory
)
893 if (q
->bufs
[i
]->boff
== (vma
->vm_pgoff
<< PAGE_SHIFT
))
897 if (VIDEO_MAX_FRAME
== i
) {
898 v4l2_dbg(1, debug
, &vout
->vid_dev
->v4l2_dev
,
899 "offset invalid [offset=0x%lx]\n",
900 (vma
->vm_pgoff
<< PAGE_SHIFT
));
903 /* Check the size of the buffer */
904 if (size
> vout
->buffer_size
) {
905 v4l2_err(&vout
->vid_dev
->v4l2_dev
,
906 "insufficient memory [%lu] [%u]\n",
907 size
, vout
->buffer_size
);
911 q
->bufs
[i
]->baddr
= vma
->vm_start
;
913 vma
->vm_flags
|= VM_RESERVED
;
914 vma
->vm_page_prot
= pgprot_writecombine(vma
->vm_page_prot
);
915 vma
->vm_ops
= &omap_vout_vm_ops
;
916 vma
->vm_private_data
= (void *) vout
;
917 pos
= (void *)vout
->buf_virt_addr
[i
];
918 vma
->vm_pgoff
= virt_to_phys((void *)pos
) >> PAGE_SHIFT
;
921 pfn
= virt_to_phys((void *) pos
) >> PAGE_SHIFT
;
922 if (remap_pfn_range(vma
, start
, pfn
, PAGE_SIZE
, PAGE_SHARED
))
929 v4l2_dbg(1, debug
, &vout
->vid_dev
->v4l2_dev
, "Exiting %s\n", __func__
);
934 static int omap_vout_release(struct file
*file
)
937 struct videobuf_queue
*q
;
938 struct omapvideo_info
*ovid
;
939 struct omap_vout_device
*vout
= file
->private_data
;
941 v4l2_dbg(1, debug
, &vout
->vid_dev
->v4l2_dev
, "Entering %s\n", __func__
);
942 ovid
= &vout
->vid_info
;
948 /* Disable all the overlay managers connected with this interface */
949 for (i
= 0; i
< ovid
->num_overlays
; i
++) {
950 struct omap_overlay
*ovl
= ovid
->overlays
[i
];
951 if (ovl
->manager
&& ovl
->manager
->device
) {
952 struct omap_overlay_info info
;
953 ovl
->get_overlay_info(ovl
, &info
);
955 ovl
->set_overlay_info(ovl
, &info
);
958 /* Turn off the pipeline */
959 ret
= omapvid_apply_changes(vout
);
961 v4l2_warn(&vout
->vid_dev
->v4l2_dev
,
962 "Unable to apply changes\n");
964 /* Free all buffers */
965 omap_vout_free_extra_buffers(vout
);
967 /* Free the VRFB buffers only if they are allocated
968 * during reqbufs. Don't free if init time allocated
970 if (ovid
->rotation_type
== VOUT_ROT_VRFB
) {
971 if (!vout
->vrfb_static_allocation
)
972 omap_vout_free_vrfb_buffers(vout
);
974 videobuf_mmap_free(q
);
976 /* Even if apply changes fails we should continue
977 freeing allocated memory */
978 if (vout
->streaming
) {
981 mask
= DISPC_IRQ_VSYNC
| DISPC_IRQ_EVSYNC_EVEN
|
982 DISPC_IRQ_EVSYNC_ODD
| DISPC_IRQ_VSYNC2
;
983 omap_dispc_unregister_isr(omap_vout_isr
, vout
, mask
);
986 videobuf_streamoff(q
);
987 videobuf_queue_cancel(q
);
990 if (vout
->mmap_count
!= 0)
991 vout
->mmap_count
= 0;
994 file
->private_data
= NULL
;
996 if (vout
->buffer_allocated
)
997 videobuf_mmap_free(q
);
999 v4l2_dbg(1, debug
, &vout
->vid_dev
->v4l2_dev
, "Exiting %s\n", __func__
);
1003 static int omap_vout_open(struct file
*file
)
1005 struct videobuf_queue
*q
;
1006 struct omap_vout_device
*vout
= NULL
;
1008 vout
= video_drvdata(file
);
1009 v4l2_dbg(1, debug
, &vout
->vid_dev
->v4l2_dev
, "Entering %s\n", __func__
);
1014 /* for now, we only support single open */
1020 file
->private_data
= vout
;
1021 vout
->type
= V4L2_BUF_TYPE_VIDEO_OUTPUT
;
1024 video_vbq_ops
.buf_setup
= omap_vout_buffer_setup
;
1025 video_vbq_ops
.buf_prepare
= omap_vout_buffer_prepare
;
1026 video_vbq_ops
.buf_release
= omap_vout_buffer_release
;
1027 video_vbq_ops
.buf_queue
= omap_vout_buffer_queue
;
1028 spin_lock_init(&vout
->vbq_lock
);
1030 videobuf_queue_dma_contig_init(q
, &video_vbq_ops
, q
->dev
,
1031 &vout
->vbq_lock
, vout
->type
, V4L2_FIELD_NONE
,
1032 sizeof(struct videobuf_buffer
), vout
, NULL
);
1034 v4l2_dbg(1, debug
, &vout
->vid_dev
->v4l2_dev
, "Exiting %s\n", __func__
);
1041 static int vidioc_querycap(struct file
*file
, void *fh
,
1042 struct v4l2_capability
*cap
)
1044 struct omap_vout_device
*vout
= fh
;
1046 strlcpy(cap
->driver
, VOUT_NAME
, sizeof(cap
->driver
));
1047 strlcpy(cap
->card
, vout
->vfd
->name
, sizeof(cap
->card
));
1048 cap
->bus_info
[0] = '\0';
1049 cap
->capabilities
= V4L2_CAP_STREAMING
| V4L2_CAP_VIDEO_OUTPUT
|
1050 V4L2_CAP_VIDEO_OUTPUT_OVERLAY
;
1055 static int vidioc_enum_fmt_vid_out(struct file
*file
, void *fh
,
1056 struct v4l2_fmtdesc
*fmt
)
1058 int index
= fmt
->index
;
1060 if (index
>= NUM_OUTPUT_FORMATS
)
1063 fmt
->flags
= omap_formats
[index
].flags
;
1064 strlcpy(fmt
->description
, omap_formats
[index
].description
,
1065 sizeof(fmt
->description
));
1066 fmt
->pixelformat
= omap_formats
[index
].pixelformat
;
1071 static int vidioc_g_fmt_vid_out(struct file
*file
, void *fh
,
1072 struct v4l2_format
*f
)
1074 struct omap_vout_device
*vout
= fh
;
1076 f
->fmt
.pix
= vout
->pix
;
1081 static int vidioc_try_fmt_vid_out(struct file
*file
, void *fh
,
1082 struct v4l2_format
*f
)
1084 struct omap_overlay
*ovl
;
1085 struct omapvideo_info
*ovid
;
1086 struct omap_video_timings
*timing
;
1087 struct omap_vout_device
*vout
= fh
;
1089 ovid
= &vout
->vid_info
;
1090 ovl
= ovid
->overlays
[0];
1092 if (!ovl
->manager
|| !ovl
->manager
->device
)
1094 /* get the display device attached to the overlay */
1095 timing
= &ovl
->manager
->device
->panel
.timings
;
1097 vout
->fbuf
.fmt
.height
= timing
->y_res
;
1098 vout
->fbuf
.fmt
.width
= timing
->x_res
;
1100 omap_vout_try_format(&f
->fmt
.pix
);
1104 static int vidioc_s_fmt_vid_out(struct file
*file
, void *fh
,
1105 struct v4l2_format
*f
)
1108 struct omap_overlay
*ovl
;
1109 struct omapvideo_info
*ovid
;
1110 struct omap_video_timings
*timing
;
1111 struct omap_vout_device
*vout
= fh
;
1113 if (vout
->streaming
)
1116 mutex_lock(&vout
->lock
);
1118 ovid
= &vout
->vid_info
;
1119 ovl
= ovid
->overlays
[0];
1121 /* get the display device attached to the overlay */
1122 if (!ovl
->manager
|| !ovl
->manager
->device
) {
1124 goto s_fmt_vid_out_exit
;
1126 timing
= &ovl
->manager
->device
->panel
.timings
;
1128 /* We dont support RGB24-packed mode if vrfb rotation
1130 if ((is_rotation_enabled(vout
)) &&
1131 f
->fmt
.pix
.pixelformat
== V4L2_PIX_FMT_RGB24
) {
1133 goto s_fmt_vid_out_exit
;
1136 /* get the framebuffer parameters */
1138 if (is_rotation_90_or_270(vout
)) {
1139 vout
->fbuf
.fmt
.height
= timing
->x_res
;
1140 vout
->fbuf
.fmt
.width
= timing
->y_res
;
1142 vout
->fbuf
.fmt
.height
= timing
->y_res
;
1143 vout
->fbuf
.fmt
.width
= timing
->x_res
;
1146 /* change to samller size is OK */
1148 bpp
= omap_vout_try_format(&f
->fmt
.pix
);
1149 f
->fmt
.pix
.sizeimage
= f
->fmt
.pix
.width
* f
->fmt
.pix
.height
* bpp
;
1151 /* try & set the new output format */
1153 vout
->pix
= f
->fmt
.pix
;
1156 /* If YUYV then vrfb bpp is 2, for others its 1 */
1157 if (V4L2_PIX_FMT_YUYV
== vout
->pix
.pixelformat
||
1158 V4L2_PIX_FMT_UYVY
== vout
->pix
.pixelformat
)
1161 /* set default crop and win */
1162 omap_vout_new_format(&vout
->pix
, &vout
->fbuf
, &vout
->crop
, &vout
->win
);
1164 /* Save the changes in the overlay strcuture */
1165 ret
= omapvid_init(vout
, 0);
1167 v4l2_err(&vout
->vid_dev
->v4l2_dev
, "failed to change mode\n");
1168 goto s_fmt_vid_out_exit
;
1174 mutex_unlock(&vout
->lock
);
1178 static int vidioc_try_fmt_vid_overlay(struct file
*file
, void *fh
,
1179 struct v4l2_format
*f
)
1182 struct omap_vout_device
*vout
= fh
;
1183 struct omap_overlay
*ovl
;
1184 struct omapvideo_info
*ovid
;
1185 struct v4l2_window
*win
= &f
->fmt
.win
;
1187 ovid
= &vout
->vid_info
;
1188 ovl
= ovid
->overlays
[0];
1190 ret
= omap_vout_try_window(&vout
->fbuf
, win
);
1193 if ((ovl
->caps
& OMAP_DSS_OVL_CAP_GLOBAL_ALPHA
) == 0)
1194 win
->global_alpha
= 255;
1196 win
->global_alpha
= f
->fmt
.win
.global_alpha
;
1202 static int vidioc_s_fmt_vid_overlay(struct file
*file
, void *fh
,
1203 struct v4l2_format
*f
)
1206 struct omap_overlay
*ovl
;
1207 struct omapvideo_info
*ovid
;
1208 struct omap_vout_device
*vout
= fh
;
1209 struct v4l2_window
*win
= &f
->fmt
.win
;
1211 mutex_lock(&vout
->lock
);
1212 ovid
= &vout
->vid_info
;
1213 ovl
= ovid
->overlays
[0];
1215 ret
= omap_vout_new_window(&vout
->crop
, &vout
->win
, &vout
->fbuf
, win
);
1217 /* Video1 plane does not support global alpha on OMAP3 */
1218 if ((ovl
->caps
& OMAP_DSS_OVL_CAP_GLOBAL_ALPHA
) == 0)
1219 vout
->win
.global_alpha
= 255;
1221 vout
->win
.global_alpha
= f
->fmt
.win
.global_alpha
;
1223 vout
->win
.chromakey
= f
->fmt
.win
.chromakey
;
1225 mutex_unlock(&vout
->lock
);
1229 static int vidioc_enum_fmt_vid_overlay(struct file
*file
, void *fh
,
1230 struct v4l2_fmtdesc
*fmt
)
1232 int index
= fmt
->index
;
1234 if (index
>= NUM_OUTPUT_FORMATS
)
1237 fmt
->flags
= omap_formats
[index
].flags
;
1238 strlcpy(fmt
->description
, omap_formats
[index
].description
,
1239 sizeof(fmt
->description
));
1240 fmt
->pixelformat
= omap_formats
[index
].pixelformat
;
1244 static int vidioc_g_fmt_vid_overlay(struct file
*file
, void *fh
,
1245 struct v4l2_format
*f
)
1248 struct omap_overlay
*ovl
;
1249 struct omapvideo_info
*ovid
;
1250 struct omap_vout_device
*vout
= fh
;
1251 struct omap_overlay_manager_info info
;
1252 struct v4l2_window
*win
= &f
->fmt
.win
;
1254 ovid
= &vout
->vid_info
;
1255 ovl
= ovid
->overlays
[0];
1257 win
->w
= vout
->win
.w
;
1258 win
->field
= vout
->win
.field
;
1259 win
->global_alpha
= vout
->win
.global_alpha
;
1261 if (ovl
->manager
&& ovl
->manager
->get_manager_info
) {
1262 ovl
->manager
->get_manager_info(ovl
->manager
, &info
);
1263 key_value
= info
.trans_key
;
1265 win
->chromakey
= key_value
;
1269 static int vidioc_cropcap(struct file
*file
, void *fh
,
1270 struct v4l2_cropcap
*cropcap
)
1272 struct omap_vout_device
*vout
= fh
;
1273 struct v4l2_pix_format
*pix
= &vout
->pix
;
1275 if (cropcap
->type
!= V4L2_BUF_TYPE_VIDEO_OUTPUT
)
1278 /* Width and height are always even */
1279 cropcap
->bounds
.width
= pix
->width
& ~1;
1280 cropcap
->bounds
.height
= pix
->height
& ~1;
1282 omap_vout_default_crop(&vout
->pix
, &vout
->fbuf
, &cropcap
->defrect
);
1283 cropcap
->pixelaspect
.numerator
= 1;
1284 cropcap
->pixelaspect
.denominator
= 1;
1288 static int vidioc_g_crop(struct file
*file
, void *fh
, struct v4l2_crop
*crop
)
1290 struct omap_vout_device
*vout
= fh
;
1292 if (crop
->type
!= V4L2_BUF_TYPE_VIDEO_OUTPUT
)
1294 crop
->c
= vout
->crop
;
1298 static int vidioc_s_crop(struct file
*file
, void *fh
, struct v4l2_crop
*crop
)
1301 struct omap_vout_device
*vout
= fh
;
1302 struct omapvideo_info
*ovid
;
1303 struct omap_overlay
*ovl
;
1304 struct omap_video_timings
*timing
;
1306 if (vout
->streaming
)
1309 mutex_lock(&vout
->lock
);
1310 ovid
= &vout
->vid_info
;
1311 ovl
= ovid
->overlays
[0];
1313 if (!ovl
->manager
|| !ovl
->manager
->device
) {
1317 /* get the display device attached to the overlay */
1318 timing
= &ovl
->manager
->device
->panel
.timings
;
1320 if (is_rotation_90_or_270(vout
)) {
1321 vout
->fbuf
.fmt
.height
= timing
->x_res
;
1322 vout
->fbuf
.fmt
.width
= timing
->y_res
;
1324 vout
->fbuf
.fmt
.height
= timing
->y_res
;
1325 vout
->fbuf
.fmt
.width
= timing
->x_res
;
1328 if (crop
->type
== V4L2_BUF_TYPE_VIDEO_OUTPUT
)
1329 ret
= omap_vout_new_crop(&vout
->pix
, &vout
->crop
, &vout
->win
,
1330 &vout
->fbuf
, &crop
->c
);
1333 mutex_unlock(&vout
->lock
);
1337 static int vidioc_queryctrl(struct file
*file
, void *fh
,
1338 struct v4l2_queryctrl
*ctrl
)
1343 case V4L2_CID_ROTATE
:
1344 ret
= v4l2_ctrl_query_fill(ctrl
, 0, 270, 90, 0);
1346 case V4L2_CID_BG_COLOR
:
1347 ret
= v4l2_ctrl_query_fill(ctrl
, 0, 0xFFFFFF, 1, 0);
1349 case V4L2_CID_VFLIP
:
1350 ret
= v4l2_ctrl_query_fill(ctrl
, 0, 1, 1, 0);
1353 ctrl
->name
[0] = '\0';
1359 static int vidioc_g_ctrl(struct file
*file
, void *fh
, struct v4l2_control
*ctrl
)
1362 struct omap_vout_device
*vout
= fh
;
1365 case V4L2_CID_ROTATE
:
1366 ctrl
->value
= vout
->control
[0].value
;
1368 case V4L2_CID_BG_COLOR
:
1370 struct omap_overlay_manager_info info
;
1371 struct omap_overlay
*ovl
;
1373 ovl
= vout
->vid_info
.overlays
[0];
1374 if (!ovl
->manager
|| !ovl
->manager
->get_manager_info
) {
1379 ovl
->manager
->get_manager_info(ovl
->manager
, &info
);
1380 ctrl
->value
= info
.default_color
;
1383 case V4L2_CID_VFLIP
:
1384 ctrl
->value
= vout
->control
[2].value
;
1392 static int vidioc_s_ctrl(struct file
*file
, void *fh
, struct v4l2_control
*a
)
1395 struct omap_vout_device
*vout
= fh
;
1398 case V4L2_CID_ROTATE
:
1400 struct omapvideo_info
*ovid
;
1401 int rotation
= a
->value
;
1403 ovid
= &vout
->vid_info
;
1405 mutex_lock(&vout
->lock
);
1406 if (rotation
&& ovid
->rotation_type
== VOUT_ROT_NONE
) {
1407 mutex_unlock(&vout
->lock
);
1412 if (rotation
&& vout
->pix
.pixelformat
== V4L2_PIX_FMT_RGB24
) {
1413 mutex_unlock(&vout
->lock
);
1418 if (v4l2_rot_to_dss_rot(rotation
, &vout
->rotation
,
1420 mutex_unlock(&vout
->lock
);
1425 vout
->control
[0].value
= rotation
;
1426 mutex_unlock(&vout
->lock
);
1429 case V4L2_CID_BG_COLOR
:
1431 struct omap_overlay
*ovl
;
1432 unsigned int color
= a
->value
;
1433 struct omap_overlay_manager_info info
;
1435 ovl
= vout
->vid_info
.overlays
[0];
1437 mutex_lock(&vout
->lock
);
1438 if (!ovl
->manager
|| !ovl
->manager
->get_manager_info
) {
1439 mutex_unlock(&vout
->lock
);
1444 ovl
->manager
->get_manager_info(ovl
->manager
, &info
);
1445 info
.default_color
= color
;
1446 if (ovl
->manager
->set_manager_info(ovl
->manager
, &info
)) {
1447 mutex_unlock(&vout
->lock
);
1452 vout
->control
[1].value
= color
;
1453 mutex_unlock(&vout
->lock
);
1456 case V4L2_CID_VFLIP
:
1458 struct omap_overlay
*ovl
;
1459 struct omapvideo_info
*ovid
;
1460 unsigned int mirror
= a
->value
;
1462 ovid
= &vout
->vid_info
;
1463 ovl
= ovid
->overlays
[0];
1465 mutex_lock(&vout
->lock
);
1466 if (mirror
&& ovid
->rotation_type
== VOUT_ROT_NONE
) {
1467 mutex_unlock(&vout
->lock
);
1472 if (mirror
&& vout
->pix
.pixelformat
== V4L2_PIX_FMT_RGB24
) {
1473 mutex_unlock(&vout
->lock
);
1477 vout
->mirror
= mirror
;
1478 vout
->control
[2].value
= mirror
;
1479 mutex_unlock(&vout
->lock
);
1488 static int vidioc_reqbufs(struct file
*file
, void *fh
,
1489 struct v4l2_requestbuffers
*req
)
1492 unsigned int i
, num_buffers
= 0;
1493 struct omap_vout_device
*vout
= fh
;
1494 struct videobuf_queue
*q
= &vout
->vbq
;
1496 if ((req
->type
!= V4L2_BUF_TYPE_VIDEO_OUTPUT
) || (req
->count
< 0))
1498 /* if memory is not mmp or userptr
1500 if ((V4L2_MEMORY_MMAP
!= req
->memory
) &&
1501 (V4L2_MEMORY_USERPTR
!= req
->memory
))
1504 mutex_lock(&vout
->lock
);
1505 /* Cannot be requested when streaming is on */
1506 if (vout
->streaming
) {
1511 /* If buffers are already allocated free them */
1512 if (q
->bufs
[0] && (V4L2_MEMORY_MMAP
== q
->bufs
[0]->memory
)) {
1513 if (vout
->mmap_count
) {
1517 num_buffers
= (vout
->vid
== OMAP_VIDEO1
) ?
1518 video1_numbuffers
: video2_numbuffers
;
1519 for (i
= num_buffers
; i
< vout
->buffer_allocated
; i
++) {
1520 omap_vout_free_buffer(vout
->buf_virt_addr
[i
],
1522 vout
->buf_virt_addr
[i
] = 0;
1523 vout
->buf_phy_addr
[i
] = 0;
1525 vout
->buffer_allocated
= num_buffers
;
1526 videobuf_mmap_free(q
);
1527 } else if (q
->bufs
[0] && (V4L2_MEMORY_USERPTR
== q
->bufs
[0]->memory
)) {
1528 if (vout
->buffer_allocated
) {
1529 videobuf_mmap_free(q
);
1530 for (i
= 0; i
< vout
->buffer_allocated
; i
++) {
1534 vout
->buffer_allocated
= 0;
1538 /*store the memory type in data structure */
1539 vout
->memory
= req
->memory
;
1541 INIT_LIST_HEAD(&vout
->dma_queue
);
1543 /* call videobuf_reqbufs api */
1544 ret
= videobuf_reqbufs(q
, req
);
1548 vout
->buffer_allocated
= req
->count
;
1551 mutex_unlock(&vout
->lock
);
1555 static int vidioc_querybuf(struct file
*file
, void *fh
,
1556 struct v4l2_buffer
*b
)
1558 struct omap_vout_device
*vout
= fh
;
1560 return videobuf_querybuf(&vout
->vbq
, b
);
1563 static int vidioc_qbuf(struct file
*file
, void *fh
,
1564 struct v4l2_buffer
*buffer
)
1566 struct omap_vout_device
*vout
= fh
;
1567 struct videobuf_queue
*q
= &vout
->vbq
;
1569 if ((V4L2_BUF_TYPE_VIDEO_OUTPUT
!= buffer
->type
) ||
1570 (buffer
->index
>= vout
->buffer_allocated
) ||
1571 (q
->bufs
[buffer
->index
]->memory
!= buffer
->memory
)) {
1574 if (V4L2_MEMORY_USERPTR
== buffer
->memory
) {
1575 if ((buffer
->length
< vout
->pix
.sizeimage
) ||
1576 (0 == buffer
->m
.userptr
)) {
1581 if ((is_rotation_enabled(vout
)) &&
1582 vout
->vrfb_dma_tx
.req_status
== DMA_CHAN_NOT_ALLOTED
) {
1583 v4l2_warn(&vout
->vid_dev
->v4l2_dev
,
1584 "DMA Channel not allocated for Rotation\n");
1588 return videobuf_qbuf(q
, buffer
);
1591 static int vidioc_dqbuf(struct file
*file
, void *fh
, struct v4l2_buffer
*b
)
1593 struct omap_vout_device
*vout
= fh
;
1594 struct videobuf_queue
*q
= &vout
->vbq
;
1599 struct videobuf_buffer
*vb
;
1601 vb
= q
->bufs
[b
->index
];
1603 if (!vout
->streaming
)
1606 if (file
->f_flags
& O_NONBLOCK
)
1607 /* Call videobuf_dqbuf for non blocking mode */
1608 ret
= videobuf_dqbuf(q
, (struct v4l2_buffer
*)b
, 1);
1610 /* Call videobuf_dqbuf for blocking mode */
1611 ret
= videobuf_dqbuf(q
, (struct v4l2_buffer
*)b
, 0);
1613 addr
= (unsigned long) vout
->buf_phy_addr
[vb
->i
];
1614 size
= (unsigned long) vb
->size
;
1615 dma_unmap_single(vout
->vid_dev
->v4l2_dev
.dev
, addr
,
1616 size
, DMA_TO_DEVICE
);
1620 static int vidioc_streamon(struct file
*file
, void *fh
, enum v4l2_buf_type i
)
1623 u32 addr
= 0, mask
= 0;
1624 struct omap_vout_device
*vout
= fh
;
1625 struct videobuf_queue
*q
= &vout
->vbq
;
1626 struct omapvideo_info
*ovid
= &vout
->vid_info
;
1628 mutex_lock(&vout
->lock
);
1630 if (vout
->streaming
) {
1635 ret
= videobuf_streamon(q
);
1639 if (list_empty(&vout
->dma_queue
)) {
1644 /* Get the next frame from the buffer queue */
1645 vout
->next_frm
= vout
->cur_frm
= list_entry(vout
->dma_queue
.next
,
1646 struct videobuf_buffer
, queue
);
1647 /* Remove buffer from the buffer queue */
1648 list_del(&vout
->cur_frm
->queue
);
1649 /* Mark state of the current frame to active */
1650 vout
->cur_frm
->state
= VIDEOBUF_ACTIVE
;
1651 /* Initialize field_id and started member */
1654 /* set flag here. Next QBUF will start DMA */
1655 vout
->streaming
= 1;
1657 vout
->first_int
= 1;
1659 if (omap_vout_calculate_offset(vout
)) {
1663 addr
= (unsigned long) vout
->queued_buf_addr
[vout
->cur_frm
->i
]
1664 + vout
->cropped_offset
;
1666 mask
= DISPC_IRQ_VSYNC
| DISPC_IRQ_EVSYNC_EVEN
| DISPC_IRQ_EVSYNC_ODD
1669 omap_dispc_register_isr(omap_vout_isr
, vout
, mask
);
1671 for (j
= 0; j
< ovid
->num_overlays
; j
++) {
1672 struct omap_overlay
*ovl
= ovid
->overlays
[j
];
1674 if (ovl
->manager
&& ovl
->manager
->device
) {
1675 struct omap_overlay_info info
;
1676 ovl
->get_overlay_info(ovl
, &info
);
1679 if (ovl
->set_overlay_info(ovl
, &info
)) {
1686 /* First save the configuration in ovelray structure */
1687 ret
= omapvid_init(vout
, addr
);
1689 v4l2_err(&vout
->vid_dev
->v4l2_dev
,
1690 "failed to set overlay info\n");
1691 /* Enable the pipeline and set the Go bit */
1692 ret
= omapvid_apply_changes(vout
);
1694 v4l2_err(&vout
->vid_dev
->v4l2_dev
, "failed to change mode\n");
1700 ret
= videobuf_streamoff(q
);
1702 mutex_unlock(&vout
->lock
);
1706 static int vidioc_streamoff(struct file
*file
, void *fh
, enum v4l2_buf_type i
)
1710 struct omap_vout_device
*vout
= fh
;
1711 struct omapvideo_info
*ovid
= &vout
->vid_info
;
1713 if (!vout
->streaming
)
1716 vout
->streaming
= 0;
1717 mask
= DISPC_IRQ_VSYNC
| DISPC_IRQ_EVSYNC_EVEN
| DISPC_IRQ_EVSYNC_ODD
1720 omap_dispc_unregister_isr(omap_vout_isr
, vout
, mask
);
1722 for (j
= 0; j
< ovid
->num_overlays
; j
++) {
1723 struct omap_overlay
*ovl
= ovid
->overlays
[j
];
1725 if (ovl
->manager
&& ovl
->manager
->device
) {
1726 struct omap_overlay_info info
;
1728 ovl
->get_overlay_info(ovl
, &info
);
1730 ret
= ovl
->set_overlay_info(ovl
, &info
);
1732 v4l2_err(&vout
->vid_dev
->v4l2_dev
,
1733 "failed to update overlay info in streamoff\n");
1737 /* Turn of the pipeline */
1738 ret
= omapvid_apply_changes(vout
);
1740 v4l2_err(&vout
->vid_dev
->v4l2_dev
, "failed to change mode in"
1743 INIT_LIST_HEAD(&vout
->dma_queue
);
1744 ret
= videobuf_streamoff(&vout
->vbq
);
1749 static int vidioc_s_fbuf(struct file
*file
, void *fh
,
1750 struct v4l2_framebuffer
*a
)
1753 struct omap_overlay
*ovl
;
1754 struct omapvideo_info
*ovid
;
1755 struct omap_vout_device
*vout
= fh
;
1756 struct omap_overlay_manager_info info
;
1757 enum omap_dss_trans_key_type key_type
= OMAP_DSS_COLOR_KEY_GFX_DST
;
1759 ovid
= &vout
->vid_info
;
1760 ovl
= ovid
->overlays
[0];
1762 /* OMAP DSS doesn't support Source and Destination color
1764 if ((a
->flags
& V4L2_FBUF_FLAG_SRC_CHROMAKEY
) &&
1765 (a
->flags
& V4L2_FBUF_FLAG_CHROMAKEY
))
1767 /* OMAP DSS Doesn't support the Destination color key
1768 and alpha blending together */
1769 if ((a
->flags
& V4L2_FBUF_FLAG_CHROMAKEY
) &&
1770 (a
->flags
& V4L2_FBUF_FLAG_LOCAL_ALPHA
))
1773 if ((a
->flags
& V4L2_FBUF_FLAG_SRC_CHROMAKEY
)) {
1774 vout
->fbuf
.flags
|= V4L2_FBUF_FLAG_SRC_CHROMAKEY
;
1775 key_type
= OMAP_DSS_COLOR_KEY_VID_SRC
;
1777 vout
->fbuf
.flags
&= ~V4L2_FBUF_FLAG_SRC_CHROMAKEY
;
1779 if ((a
->flags
& V4L2_FBUF_FLAG_CHROMAKEY
)) {
1780 vout
->fbuf
.flags
|= V4L2_FBUF_FLAG_CHROMAKEY
;
1781 key_type
= OMAP_DSS_COLOR_KEY_GFX_DST
;
1783 vout
->fbuf
.flags
&= ~V4L2_FBUF_FLAG_CHROMAKEY
;
1785 if (a
->flags
& (V4L2_FBUF_FLAG_CHROMAKEY
|
1786 V4L2_FBUF_FLAG_SRC_CHROMAKEY
))
1790 if (ovl
->manager
&& ovl
->manager
->get_manager_info
&&
1791 ovl
->manager
->set_manager_info
) {
1793 ovl
->manager
->get_manager_info(ovl
->manager
, &info
);
1794 info
.trans_enabled
= enable
;
1795 info
.trans_key_type
= key_type
;
1796 info
.trans_key
= vout
->win
.chromakey
;
1798 if (ovl
->manager
->set_manager_info(ovl
->manager
, &info
))
1801 if (a
->flags
& V4L2_FBUF_FLAG_LOCAL_ALPHA
) {
1802 vout
->fbuf
.flags
|= V4L2_FBUF_FLAG_LOCAL_ALPHA
;
1805 vout
->fbuf
.flags
&= ~V4L2_FBUF_FLAG_LOCAL_ALPHA
;
1808 if (ovl
->manager
&& ovl
->manager
->get_manager_info
&&
1809 ovl
->manager
->set_manager_info
) {
1810 ovl
->manager
->get_manager_info(ovl
->manager
, &info
);
1811 /* enable this only if there is no zorder cap */
1812 if ((ovl
->caps
& OMAP_DSS_OVL_CAP_ZORDER
) == 0)
1813 info
.partial_alpha_enabled
= enable
;
1814 if (ovl
->manager
->set_manager_info(ovl
->manager
, &info
))
1821 static int vidioc_g_fbuf(struct file
*file
, void *fh
,
1822 struct v4l2_framebuffer
*a
)
1824 struct omap_overlay
*ovl
;
1825 struct omapvideo_info
*ovid
;
1826 struct omap_vout_device
*vout
= fh
;
1827 struct omap_overlay_manager_info info
;
1829 ovid
= &vout
->vid_info
;
1830 ovl
= ovid
->overlays
[0];
1832 /* The video overlay must stay within the framebuffer and can't be
1833 positioned independently. */
1834 a
->flags
= V4L2_FBUF_FLAG_OVERLAY
;
1835 a
->capability
= V4L2_FBUF_CAP_LOCAL_ALPHA
| V4L2_FBUF_CAP_CHROMAKEY
1836 | V4L2_FBUF_CAP_SRC_CHROMAKEY
;
1838 if (ovl
->manager
&& ovl
->manager
->get_manager_info
) {
1839 ovl
->manager
->get_manager_info(ovl
->manager
, &info
);
1840 if (info
.trans_key_type
== OMAP_DSS_COLOR_KEY_VID_SRC
)
1841 a
->flags
|= V4L2_FBUF_FLAG_SRC_CHROMAKEY
;
1842 if (info
.trans_key_type
== OMAP_DSS_COLOR_KEY_GFX_DST
)
1843 a
->flags
|= V4L2_FBUF_FLAG_CHROMAKEY
;
1845 if (ovl
->manager
&& ovl
->manager
->get_manager_info
) {
1846 ovl
->manager
->get_manager_info(ovl
->manager
, &info
);
1847 if (info
.partial_alpha_enabled
)
1848 a
->flags
|= V4L2_FBUF_FLAG_LOCAL_ALPHA
;
1854 static const struct v4l2_ioctl_ops vout_ioctl_ops
= {
1855 .vidioc_querycap
= vidioc_querycap
,
1856 .vidioc_enum_fmt_vid_out
= vidioc_enum_fmt_vid_out
,
1857 .vidioc_g_fmt_vid_out
= vidioc_g_fmt_vid_out
,
1858 .vidioc_try_fmt_vid_out
= vidioc_try_fmt_vid_out
,
1859 .vidioc_s_fmt_vid_out
= vidioc_s_fmt_vid_out
,
1860 .vidioc_queryctrl
= vidioc_queryctrl
,
1861 .vidioc_g_ctrl
= vidioc_g_ctrl
,
1862 .vidioc_s_fbuf
= vidioc_s_fbuf
,
1863 .vidioc_g_fbuf
= vidioc_g_fbuf
,
1864 .vidioc_s_ctrl
= vidioc_s_ctrl
,
1865 .vidioc_try_fmt_vid_overlay
= vidioc_try_fmt_vid_overlay
,
1866 .vidioc_s_fmt_vid_overlay
= vidioc_s_fmt_vid_overlay
,
1867 .vidioc_enum_fmt_vid_overlay
= vidioc_enum_fmt_vid_overlay
,
1868 .vidioc_g_fmt_vid_overlay
= vidioc_g_fmt_vid_overlay
,
1869 .vidioc_cropcap
= vidioc_cropcap
,
1870 .vidioc_g_crop
= vidioc_g_crop
,
1871 .vidioc_s_crop
= vidioc_s_crop
,
1872 .vidioc_reqbufs
= vidioc_reqbufs
,
1873 .vidioc_querybuf
= vidioc_querybuf
,
1874 .vidioc_qbuf
= vidioc_qbuf
,
1875 .vidioc_dqbuf
= vidioc_dqbuf
,
1876 .vidioc_streamon
= vidioc_streamon
,
1877 .vidioc_streamoff
= vidioc_streamoff
,
1880 static const struct v4l2_file_operations omap_vout_fops
= {
1881 .owner
= THIS_MODULE
,
1882 .poll
= omap_vout_poll
,
1883 .unlocked_ioctl
= video_ioctl2
,
1884 .mmap
= omap_vout_mmap
,
1885 .open
= omap_vout_open
,
1886 .release
= omap_vout_release
,
1889 /* Init functions used during driver initialization */
1890 /* Initial setup of video_data */
1891 static int __init
omap_vout_setup_video_data(struct omap_vout_device
*vout
)
1893 struct video_device
*vfd
;
1894 struct v4l2_pix_format
*pix
;
1895 struct v4l2_control
*control
;
1896 struct omap_dss_device
*display
=
1897 vout
->vid_info
.overlays
[0]->manager
->device
;
1899 /* set the default pix */
1902 /* Set the default picture of QVGA */
1903 pix
->width
= QQVGA_WIDTH
;
1904 pix
->height
= QQVGA_HEIGHT
;
1906 /* Default pixel format is RGB 5-6-5 */
1907 pix
->pixelformat
= V4L2_PIX_FMT_RGB565
;
1908 pix
->field
= V4L2_FIELD_ANY
;
1909 pix
->bytesperline
= pix
->width
* 2;
1910 pix
->sizeimage
= pix
->bytesperline
* pix
->height
;
1912 pix
->colorspace
= V4L2_COLORSPACE_JPEG
;
1914 vout
->bpp
= RGB565_BPP
;
1915 vout
->fbuf
.fmt
.width
= display
->panel
.timings
.x_res
;
1916 vout
->fbuf
.fmt
.height
= display
->panel
.timings
.y_res
;
1918 /* Set the data structures for the overlay parameters*/
1919 vout
->win
.global_alpha
= 255;
1920 vout
->fbuf
.flags
= 0;
1921 vout
->fbuf
.capability
= V4L2_FBUF_CAP_LOCAL_ALPHA
|
1922 V4L2_FBUF_CAP_SRC_CHROMAKEY
| V4L2_FBUF_CAP_CHROMAKEY
;
1923 vout
->win
.chromakey
= 0;
1925 omap_vout_new_format(pix
, &vout
->fbuf
, &vout
->crop
, &vout
->win
);
1927 /*Initialize the control variables for
1928 rotation, flipping and background color. */
1929 control
= vout
->control
;
1930 control
[0].id
= V4L2_CID_ROTATE
;
1931 control
[0].value
= 0;
1934 vout
->control
[2].id
= V4L2_CID_HFLIP
;
1935 vout
->control
[2].value
= 0;
1936 if (vout
->vid_info
.rotation_type
== VOUT_ROT_VRFB
)
1939 control
[1].id
= V4L2_CID_BG_COLOR
;
1940 control
[1].value
= 0;
1942 /* initialize the video_device struct */
1943 vfd
= vout
->vfd
= video_device_alloc();
1946 printk(KERN_ERR VOUT_NAME
": could not allocate"
1947 " video device struct\n");
1950 vfd
->release
= video_device_release
;
1951 vfd
->ioctl_ops
= &vout_ioctl_ops
;
1953 strlcpy(vfd
->name
, VOUT_NAME
, sizeof(vfd
->name
));
1955 vfd
->fops
= &omap_vout_fops
;
1956 vfd
->v4l2_dev
= &vout
->vid_dev
->v4l2_dev
;
1957 mutex_init(&vout
->lock
);
1964 /* Setup video buffers */
1965 static int __init
omap_vout_setup_video_bufs(struct platform_device
*pdev
,
1970 struct omapvideo_info
*ovid
;
1971 struct omap_vout_device
*vout
;
1972 struct v4l2_device
*v4l2_dev
= platform_get_drvdata(pdev
);
1973 struct omap2video_device
*vid_dev
=
1974 container_of(v4l2_dev
, struct omap2video_device
, v4l2_dev
);
1976 vout
= vid_dev
->vouts
[vid_num
];
1977 ovid
= &vout
->vid_info
;
1979 numbuffers
= (vid_num
== 0) ? video1_numbuffers
: video2_numbuffers
;
1980 vout
->buffer_size
= (vid_num
== 0) ? video1_bufsize
: video2_bufsize
;
1981 dev_info(&pdev
->dev
, "Buffer Size = %d\n", vout
->buffer_size
);
1983 for (i
= 0; i
< numbuffers
; i
++) {
1984 vout
->buf_virt_addr
[i
] =
1985 omap_vout_alloc_buffer(vout
->buffer_size
,
1986 (u32
*) &vout
->buf_phy_addr
[i
]);
1987 if (!vout
->buf_virt_addr
[i
]) {
1994 vout
->cropped_offset
= 0;
1996 if (ovid
->rotation_type
== VOUT_ROT_VRFB
) {
1997 int static_vrfb_allocation
= (vid_num
== 0) ?
1998 vid1_static_vrfb_alloc
: vid2_static_vrfb_alloc
;
1999 ret
= omap_vout_setup_vrfb_bufs(pdev
, vid_num
,
2000 static_vrfb_allocation
);
2006 for (i
= 0; i
< numbuffers
; i
++) {
2007 omap_vout_free_buffer(vout
->buf_virt_addr
[i
],
2009 vout
->buf_virt_addr
[i
] = 0;
2010 vout
->buf_phy_addr
[i
] = 0;
2016 /* Create video out devices */
2017 static int __init
omap_vout_create_video_devices(struct platform_device
*pdev
)
2020 struct omap_vout_device
*vout
;
2021 struct video_device
*vfd
= NULL
;
2022 struct v4l2_device
*v4l2_dev
= platform_get_drvdata(pdev
);
2023 struct omap2video_device
*vid_dev
= container_of(v4l2_dev
,
2024 struct omap2video_device
, v4l2_dev
);
2026 for (k
= 0; k
< pdev
->num_resources
; k
++) {
2028 vout
= kzalloc(sizeof(struct omap_vout_device
), GFP_KERNEL
);
2030 dev_err(&pdev
->dev
, ": could not allocate memory\n");
2035 vid_dev
->vouts
[k
] = vout
;
2036 vout
->vid_dev
= vid_dev
;
2037 /* Select video2 if only 1 overlay is controlled by V4L2 */
2038 if (pdev
->num_resources
== 1)
2039 vout
->vid_info
.overlays
[0] = vid_dev
->overlays
[k
+ 2];
2041 /* Else select video1 and video2 one by one. */
2042 vout
->vid_info
.overlays
[0] = vid_dev
->overlays
[k
+ 1];
2043 vout
->vid_info
.num_overlays
= 1;
2044 vout
->vid_info
.id
= k
+ 1;
2046 /* Set VRFB as rotation_type for omap2 and omap3 */
2047 if (cpu_is_omap24xx() || cpu_is_omap34xx())
2048 vout
->vid_info
.rotation_type
= VOUT_ROT_VRFB
;
2050 /* Setup the default configuration for the video devices
2052 if (omap_vout_setup_video_data(vout
) != 0) {
2057 /* Allocate default number of buffers for the video streaming
2058 * and reserve the VRFB space for rotation
2060 if (omap_vout_setup_video_bufs(pdev
, k
) != 0) {
2065 /* Register the Video device with V4L2
2068 if (video_register_device(vfd
, VFL_TYPE_GRABBER
, -1) < 0) {
2069 dev_err(&pdev
->dev
, ": Could not register "
2070 "Video for Linux device\n");
2075 video_set_drvdata(vfd
, vout
);
2077 /* Configure the overlay structure */
2078 ret
= omapvid_init(vid_dev
->vouts
[k
], 0);
2083 if (vout
->vid_info
.rotation_type
== VOUT_ROT_VRFB
)
2084 omap_vout_release_vrfb(vout
);
2085 omap_vout_free_buffers(vout
);
2087 video_device_release(vfd
);
2093 dev_info(&pdev
->dev
, ": registered and initialized"
2094 " video device %d\n", vfd
->minor
);
2095 if (k
== (pdev
->num_resources
- 1))
2101 /* Driver functions */
2102 static void omap_vout_cleanup_device(struct omap_vout_device
*vout
)
2104 struct video_device
*vfd
;
2105 struct omapvideo_info
*ovid
;
2111 ovid
= &vout
->vid_info
;
2113 if (!video_is_registered(vfd
)) {
2115 * The device was never registered, so release the
2116 * video_device struct directly.
2118 video_device_release(vfd
);
2121 * The unregister function will release the video_device
2122 * struct as well as unregistering it.
2124 video_unregister_device(vfd
);
2127 if (ovid
->rotation_type
== VOUT_ROT_VRFB
) {
2128 omap_vout_release_vrfb(vout
);
2129 /* Free the VRFB buffer if allocated
2132 if (vout
->vrfb_static_allocation
)
2133 omap_vout_free_vrfb_buffers(vout
);
2135 omap_vout_free_buffers(vout
);
2140 static int omap_vout_remove(struct platform_device
*pdev
)
2143 struct v4l2_device
*v4l2_dev
= platform_get_drvdata(pdev
);
2144 struct omap2video_device
*vid_dev
= container_of(v4l2_dev
, struct
2145 omap2video_device
, v4l2_dev
);
2147 v4l2_device_unregister(v4l2_dev
);
2148 for (k
= 0; k
< pdev
->num_resources
; k
++)
2149 omap_vout_cleanup_device(vid_dev
->vouts
[k
]);
2151 for (k
= 0; k
< vid_dev
->num_displays
; k
++) {
2152 if (vid_dev
->displays
[k
]->state
!= OMAP_DSS_DISPLAY_DISABLED
)
2153 vid_dev
->displays
[k
]->driver
->disable(vid_dev
->displays
[k
]);
2155 omap_dss_put_device(vid_dev
->displays
[k
]);
2161 static int __init
omap_vout_probe(struct platform_device
*pdev
)
2164 struct omap_overlay
*ovl
;
2165 struct omap_dss_device
*dssdev
= NULL
;
2166 struct omap_dss_device
*def_display
;
2167 struct omap2video_device
*vid_dev
= NULL
;
2169 if (pdev
->num_resources
== 0) {
2170 dev_err(&pdev
->dev
, "probed for an unknown device\n");
2174 vid_dev
= kzalloc(sizeof(struct omap2video_device
), GFP_KERNEL
);
2175 if (vid_dev
== NULL
)
2178 vid_dev
->num_displays
= 0;
2179 for_each_dss_dev(dssdev
) {
2180 omap_dss_get_device(dssdev
);
2182 if (!dssdev
->driver
) {
2183 dev_warn(&pdev
->dev
, "no driver for display: %s\n",
2185 omap_dss_put_device(dssdev
);
2189 vid_dev
->displays
[vid_dev
->num_displays
++] = dssdev
;
2192 if (vid_dev
->num_displays
== 0) {
2193 dev_err(&pdev
->dev
, "no displays\n");
2198 vid_dev
->num_overlays
= omap_dss_get_num_overlays();
2199 for (i
= 0; i
< vid_dev
->num_overlays
; i
++)
2200 vid_dev
->overlays
[i
] = omap_dss_get_overlay(i
);
2202 vid_dev
->num_managers
= omap_dss_get_num_overlay_managers();
2203 for (i
= 0; i
< vid_dev
->num_managers
; i
++)
2204 vid_dev
->managers
[i
] = omap_dss_get_overlay_manager(i
);
2206 /* Get the Video1 overlay and video2 overlay.
2207 * Setup the Display attached to that overlays
2209 for (i
= 1; i
< vid_dev
->num_overlays
; i
++) {
2210 ovl
= omap_dss_get_overlay(i
);
2211 if (ovl
->manager
&& ovl
->manager
->device
) {
2212 def_display
= ovl
->manager
->device
;
2214 dev_warn(&pdev
->dev
, "cannot find display\n");
2218 struct omap_dss_driver
*dssdrv
= def_display
->driver
;
2220 ret
= dssdrv
->enable(def_display
);
2222 /* Here we are not considering a error
2223 * as display may be enabled by frame
2226 dev_warn(&pdev
->dev
,
2227 "'%s' Display already enabled\n",
2233 if (v4l2_device_register(&pdev
->dev
, &vid_dev
->v4l2_dev
) < 0) {
2234 dev_err(&pdev
->dev
, "v4l2_device_register failed\n");
2239 ret
= omap_vout_create_video_devices(pdev
);
2243 for (i
= 0; i
< vid_dev
->num_displays
; i
++) {
2244 struct omap_dss_device
*display
= vid_dev
->displays
[i
];
2246 if (display
->driver
->update
)
2247 display
->driver
->update(display
, 0, 0,
2248 display
->panel
.timings
.x_res
,
2249 display
->panel
.timings
.y_res
);
2254 v4l2_device_unregister(&vid_dev
->v4l2_dev
);
2256 for (i
= 1; i
< vid_dev
->num_overlays
; i
++) {
2258 ovl
= omap_dss_get_overlay(i
);
2259 if (ovl
->manager
&& ovl
->manager
->device
)
2260 def_display
= ovl
->manager
->device
;
2262 if (def_display
&& def_display
->driver
)
2263 def_display
->driver
->disable(def_display
);
2270 static struct platform_driver omap_vout_driver
= {
2274 .probe
= omap_vout_probe
,
2275 .remove
= omap_vout_remove
,
2278 static int __init
omap_vout_init(void)
2280 if (platform_driver_register(&omap_vout_driver
) != 0) {
2281 printk(KERN_ERR VOUT_NAME
":Could not register Video driver\n");
2287 static void omap_vout_cleanup(void)
2289 platform_driver_unregister(&omap_vout_driver
);
2292 late_initcall(omap_vout_init
);
2293 module_exit(omap_vout_cleanup
);