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>
49 #include <plat/vrfb.h>
50 #include <video/omapdss.h>
52 #include "omap_voutlib.h"
53 #include "omap_voutdef.h"
54 #include "omap_vout_vrfb.h"
56 MODULE_AUTHOR("Texas Instruments");
57 MODULE_DESCRIPTION("OMAP Video for Linux Video out driver");
58 MODULE_LICENSE("GPL");
60 /* Driver Configuration macros */
61 #define VOUT_NAME "omap_vout"
63 enum omap_vout_channels
{
68 static struct videobuf_queue_ops video_vbq_ops
;
69 /* Variables configurable through module params*/
70 static u32 video1_numbuffers
= 3;
71 static u32 video2_numbuffers
= 3;
72 static u32 video1_bufsize
= OMAP_VOUT_MAX_BUF_SIZE
;
73 static u32 video2_bufsize
= OMAP_VOUT_MAX_BUF_SIZE
;
74 static bool vid1_static_vrfb_alloc
;
75 static bool vid2_static_vrfb_alloc
;
78 /* Module parameters */
79 module_param(video1_numbuffers
, uint
, S_IRUGO
);
80 MODULE_PARM_DESC(video1_numbuffers
,
81 "Number of buffers to be allocated at init time for Video1 device.");
83 module_param(video2_numbuffers
, uint
, S_IRUGO
);
84 MODULE_PARM_DESC(video2_numbuffers
,
85 "Number of buffers to be allocated at init time for Video2 device.");
87 module_param(video1_bufsize
, uint
, S_IRUGO
);
88 MODULE_PARM_DESC(video1_bufsize
,
89 "Size of the buffer to be allocated for video1 device");
91 module_param(video2_bufsize
, uint
, S_IRUGO
);
92 MODULE_PARM_DESC(video2_bufsize
,
93 "Size of the buffer to be allocated for video2 device");
95 module_param(vid1_static_vrfb_alloc
, bool, S_IRUGO
);
96 MODULE_PARM_DESC(vid1_static_vrfb_alloc
,
97 "Static allocation of the VRFB buffer for video1 device");
99 module_param(vid2_static_vrfb_alloc
, bool, S_IRUGO
);
100 MODULE_PARM_DESC(vid2_static_vrfb_alloc
,
101 "Static allocation of the VRFB buffer for video2 device");
103 module_param(debug
, bool, S_IRUGO
);
104 MODULE_PARM_DESC(debug
, "Debug level (0-1)");
106 /* list of image formats supported by OMAP2 video pipelines */
107 static const struct v4l2_fmtdesc omap_formats
[] = {
109 /* Note: V4L2 defines RGB565 as:
112 * g2 g1 g0 r4 r3 r2 r1 r0 b4 b3 b2 b1 b0 g5 g4 g3
114 * We interpret RGB565 as:
117 * g2 g1 g0 b4 b3 b2 b1 b0 r4 r3 r2 r1 r0 g5 g4 g3
119 .description
= "RGB565, le",
120 .pixelformat
= V4L2_PIX_FMT_RGB565
,
123 /* Note: V4L2 defines RGB32 as: RGB-8-8-8-8 we use
124 * this for RGB24 unpack mode, the last 8 bits are ignored
126 .description
= "RGB32, le",
127 .pixelformat
= V4L2_PIX_FMT_RGB32
,
130 /* Note: V4L2 defines RGB24 as: RGB-8-8-8 we use
131 * this for RGB24 packed mode
134 .description
= "RGB24, le",
135 .pixelformat
= V4L2_PIX_FMT_RGB24
,
138 .description
= "YUYV (YUV 4:2:2), packed",
139 .pixelformat
= V4L2_PIX_FMT_YUYV
,
142 .description
= "UYVY, packed",
143 .pixelformat
= V4L2_PIX_FMT_UYVY
,
147 #define NUM_OUTPUT_FORMATS (ARRAY_SIZE(omap_formats))
152 static int omap_vout_try_format(struct v4l2_pix_format
*pix
)
156 pix
->height
= clamp(pix
->height
, (u32
)VID_MIN_HEIGHT
,
157 (u32
)VID_MAX_HEIGHT
);
158 pix
->width
= clamp(pix
->width
, (u32
)VID_MIN_WIDTH
, (u32
)VID_MAX_WIDTH
);
160 for (ifmt
= 0; ifmt
< NUM_OUTPUT_FORMATS
; ifmt
++) {
161 if (pix
->pixelformat
== omap_formats
[ifmt
].pixelformat
)
165 if (ifmt
== NUM_OUTPUT_FORMATS
)
168 pix
->pixelformat
= omap_formats
[ifmt
].pixelformat
;
169 pix
->field
= V4L2_FIELD_ANY
;
172 switch (pix
->pixelformat
) {
173 case V4L2_PIX_FMT_YUYV
:
174 case V4L2_PIX_FMT_UYVY
:
176 pix
->colorspace
= V4L2_COLORSPACE_JPEG
;
179 case V4L2_PIX_FMT_RGB565
:
180 case V4L2_PIX_FMT_RGB565X
:
181 pix
->colorspace
= V4L2_COLORSPACE_SRGB
;
184 case V4L2_PIX_FMT_RGB24
:
185 pix
->colorspace
= V4L2_COLORSPACE_SRGB
;
188 case V4L2_PIX_FMT_RGB32
:
189 case V4L2_PIX_FMT_BGR32
:
190 pix
->colorspace
= V4L2_COLORSPACE_SRGB
;
194 pix
->bytesperline
= pix
->width
* bpp
;
195 pix
->sizeimage
= pix
->bytesperline
* pix
->height
;
201 * omap_vout_uservirt_to_phys: This inline function is used to convert user
202 * space virtual address to physical address.
204 static u32
omap_vout_uservirt_to_phys(u32 virtp
)
206 unsigned long physp
= 0;
207 struct vm_area_struct
*vma
;
208 struct mm_struct
*mm
= current
->mm
;
210 vma
= find_vma(mm
, virtp
);
211 /* For kernel direct-mapped memory, take the easy way */
212 if (virtp
>= PAGE_OFFSET
) {
213 physp
= virt_to_phys((void *) virtp
);
214 } else if (vma
&& (vma
->vm_flags
& VM_IO
) && vma
->vm_pgoff
) {
215 /* this will catch, kernel-allocated, mmaped-to-usermode
217 physp
= (vma
->vm_pgoff
<< PAGE_SHIFT
) + (virtp
- vma
->vm_start
);
219 /* otherwise, use get_user_pages() for general userland pages */
220 int res
, nr_pages
= 1;
222 down_read(¤t
->mm
->mmap_sem
);
224 res
= get_user_pages(current
, current
->mm
, virtp
, nr_pages
, 1,
226 up_read(¤t
->mm
->mmap_sem
);
228 if (res
== nr_pages
) {
229 physp
= __pa(page_address(&pages
[0]) +
230 (virtp
& ~PAGE_MASK
));
232 printk(KERN_WARNING VOUT_NAME
233 "get_user_pages failed\n");
242 * Free the V4L2 buffers
244 void omap_vout_free_buffers(struct omap_vout_device
*vout
)
248 /* Allocate memory for the buffers */
249 numbuffers
= (vout
->vid
) ? video2_numbuffers
: video1_numbuffers
;
250 vout
->buffer_size
= (vout
->vid
) ? video2_bufsize
: video1_bufsize
;
252 for (i
= 0; i
< numbuffers
; i
++) {
253 omap_vout_free_buffer(vout
->buf_virt_addr
[i
],
255 vout
->buf_phy_addr
[i
] = 0;
256 vout
->buf_virt_addr
[i
] = 0;
261 * Convert V4L2 rotation to DSS rotation
262 * V4L2 understand 0, 90, 180, 270.
263 * Convert to 0, 1, 2 and 3 respectively for DSS
265 static int v4l2_rot_to_dss_rot(int v4l2_rotation
,
266 enum dss_rotation
*rotation
, bool mirror
)
270 switch (v4l2_rotation
) {
272 *rotation
= dss_rotation_90_degree
;
275 *rotation
= dss_rotation_180_degree
;
278 *rotation
= dss_rotation_270_degree
;
281 *rotation
= dss_rotation_0_degree
;
289 static int omap_vout_calculate_offset(struct omap_vout_device
*vout
)
291 struct omapvideo_info
*ovid
;
292 struct v4l2_rect
*crop
= &vout
->crop
;
293 struct v4l2_pix_format
*pix
= &vout
->pix
;
294 int *cropped_offset
= &vout
->cropped_offset
;
295 int ps
= 2, line_length
= 0;
297 ovid
= &vout
->vid_info
;
299 if (ovid
->rotation_type
== VOUT_ROT_VRFB
) {
300 omap_vout_calculate_vrfb_offset(vout
);
302 vout
->line_length
= line_length
= pix
->width
;
304 if (V4L2_PIX_FMT_YUYV
== pix
->pixelformat
||
305 V4L2_PIX_FMT_UYVY
== pix
->pixelformat
)
307 else if (V4L2_PIX_FMT_RGB32
== pix
->pixelformat
)
309 else if (V4L2_PIX_FMT_RGB24
== pix
->pixelformat
)
314 *cropped_offset
= (line_length
* ps
) *
315 crop
->top
+ crop
->left
* ps
;
318 v4l2_dbg(1, debug
, &vout
->vid_dev
->v4l2_dev
, "%s Offset:%x\n",
319 __func__
, vout
->cropped_offset
);
325 * Convert V4L2 pixel format to DSS pixel format
327 static int video_mode_to_dss_mode(struct omap_vout_device
*vout
)
329 struct omap_overlay
*ovl
;
330 struct omapvideo_info
*ovid
;
331 struct v4l2_pix_format
*pix
= &vout
->pix
;
332 enum omap_color_mode mode
;
334 ovid
= &vout
->vid_info
;
335 ovl
= ovid
->overlays
[0];
337 switch (pix
->pixelformat
) {
340 case V4L2_PIX_FMT_YUYV
:
341 mode
= OMAP_DSS_COLOR_YUV2
;
343 case V4L2_PIX_FMT_UYVY
:
344 mode
= OMAP_DSS_COLOR_UYVY
;
346 case V4L2_PIX_FMT_RGB565
:
347 mode
= OMAP_DSS_COLOR_RGB16
;
349 case V4L2_PIX_FMT_RGB24
:
350 mode
= OMAP_DSS_COLOR_RGB24P
;
352 case V4L2_PIX_FMT_RGB32
:
353 mode
= (ovl
->id
== OMAP_DSS_VIDEO1
) ?
354 OMAP_DSS_COLOR_RGB24U
: OMAP_DSS_COLOR_ARGB32
;
356 case V4L2_PIX_FMT_BGR32
:
357 mode
= OMAP_DSS_COLOR_RGBX32
;
368 static int omapvid_setup_overlay(struct omap_vout_device
*vout
,
369 struct omap_overlay
*ovl
, int posx
, int posy
, int outw
,
373 struct omap_overlay_info info
;
374 int cropheight
, cropwidth
, pixheight
, pixwidth
;
376 if ((ovl
->caps
& OMAP_DSS_OVL_CAP_SCALE
) == 0 &&
377 (outw
!= vout
->pix
.width
|| outh
!= vout
->pix
.height
)) {
382 vout
->dss_mode
= video_mode_to_dss_mode(vout
);
383 if (vout
->dss_mode
== -EINVAL
) {
388 /* Setup the input plane parameters according to
389 * rotation value selected.
391 if (is_rotation_90_or_270(vout
)) {
392 cropheight
= vout
->crop
.width
;
393 cropwidth
= vout
->crop
.height
;
394 pixheight
= vout
->pix
.width
;
395 pixwidth
= vout
->pix
.height
;
397 cropheight
= vout
->crop
.height
;
398 cropwidth
= vout
->crop
.width
;
399 pixheight
= vout
->pix
.height
;
400 pixwidth
= vout
->pix
.width
;
403 ovl
->get_overlay_info(ovl
, &info
);
405 info
.width
= cropwidth
;
406 info
.height
= cropheight
;
407 info
.color_mode
= vout
->dss_mode
;
408 info
.mirror
= vout
->mirror
;
411 info
.out_width
= outw
;
412 info
.out_height
= outh
;
413 info
.global_alpha
= vout
->win
.global_alpha
;
414 if (!is_rotation_enabled(vout
)) {
416 info
.rotation_type
= OMAP_DSS_ROT_DMA
;
417 info
.screen_width
= pixwidth
;
419 info
.rotation
= vout
->rotation
;
420 info
.rotation_type
= OMAP_DSS_ROT_VRFB
;
421 info
.screen_width
= 2048;
424 v4l2_dbg(1, debug
, &vout
->vid_dev
->v4l2_dev
,
425 "%s enable=%d addr=%x width=%d\n height=%d color_mode=%d\n"
426 "rotation=%d mirror=%d posx=%d posy=%d out_width = %d \n"
427 "out_height=%d rotation_type=%d screen_width=%d\n",
428 __func__
, ovl
->is_enabled(ovl
), info
.paddr
, info
.width
, info
.height
,
429 info
.color_mode
, info
.rotation
, info
.mirror
, info
.pos_x
,
430 info
.pos_y
, info
.out_width
, info
.out_height
, info
.rotation_type
,
433 ret
= ovl
->set_overlay_info(ovl
, &info
);
440 v4l2_warn(&vout
->vid_dev
->v4l2_dev
, "setup_overlay failed\n");
445 * Initialize the overlay structure
447 static int omapvid_init(struct omap_vout_device
*vout
, u32 addr
)
450 struct v4l2_window
*win
;
451 struct omap_overlay
*ovl
;
452 int posx
, posy
, outw
, outh
, temp
;
453 struct omap_video_timings
*timing
;
454 struct omapvideo_info
*ovid
= &vout
->vid_info
;
457 for (i
= 0; i
< ovid
->num_overlays
; i
++) {
458 ovl
= ovid
->overlays
[i
];
459 if (!ovl
->manager
|| !ovl
->manager
->device
)
462 timing
= &ovl
->manager
->device
->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 ovl
= ovid
->overlays
[i
];
520 if (!ovl
->manager
|| !ovl
->manager
->device
)
522 ovl
->manager
->apply(ovl
->manager
);
528 static int omapvid_handle_interlace_display(struct omap_vout_device
*vout
,
529 unsigned int irqstatus
, struct timeval timevalue
)
533 if (vout
->first_int
) {
538 if (irqstatus
& DISPC_IRQ_EVSYNC_ODD
)
540 else if (irqstatus
& DISPC_IRQ_EVSYNC_EVEN
)
546 if (fid
!= vout
->field_id
) {
548 vout
->field_id
= fid
;
549 } else if (0 == fid
) {
550 if (vout
->cur_frm
== vout
->next_frm
)
553 vout
->cur_frm
->ts
= timevalue
;
554 vout
->cur_frm
->state
= VIDEOBUF_DONE
;
555 wake_up_interruptible(&vout
->cur_frm
->done
);
556 vout
->cur_frm
= vout
->next_frm
;
558 if (list_empty(&vout
->dma_queue
) ||
559 (vout
->cur_frm
!= vout
->next_frm
))
563 return vout
->field_id
;
568 static void omap_vout_isr(void *arg
, unsigned int irqstatus
)
570 int ret
, fid
, mgr_id
;
572 struct omap_overlay
*ovl
;
573 struct timeval timevalue
;
574 struct omapvideo_info
*ovid
;
575 struct omap_dss_device
*cur_display
;
576 struct omap_vout_device
*vout
= (struct omap_vout_device
*)arg
;
578 if (!vout
->streaming
)
581 ovid
= &vout
->vid_info
;
582 ovl
= ovid
->overlays
[0];
583 /* get the display device attached to the overlay */
584 if (!ovl
->manager
|| !ovl
->manager
->device
)
587 mgr_id
= ovl
->manager
->id
;
588 cur_display
= ovl
->manager
->device
;
590 spin_lock(&vout
->vbq_lock
);
591 do_gettimeofday(&timevalue
);
593 switch (cur_display
->type
) {
594 case OMAP_DISPLAY_TYPE_DSI
:
595 case OMAP_DISPLAY_TYPE_DPI
:
596 if (mgr_id
== OMAP_DSS_CHANNEL_LCD
)
597 irq
= DISPC_IRQ_VSYNC
;
598 else if (mgr_id
== OMAP_DSS_CHANNEL_LCD2
)
599 irq
= DISPC_IRQ_VSYNC2
;
603 if (!(irqstatus
& irq
))
606 case OMAP_DISPLAY_TYPE_VENC
:
607 fid
= omapvid_handle_interlace_display(vout
, irqstatus
,
612 case OMAP_DISPLAY_TYPE_HDMI
:
613 if (!(irqstatus
& DISPC_IRQ_EVSYNC_EVEN
))
620 if (!vout
->first_int
&& (vout
->cur_frm
!= vout
->next_frm
)) {
621 vout
->cur_frm
->ts
= timevalue
;
622 vout
->cur_frm
->state
= VIDEOBUF_DONE
;
623 wake_up_interruptible(&vout
->cur_frm
->done
);
624 vout
->cur_frm
= vout
->next_frm
;
628 if (list_empty(&vout
->dma_queue
))
631 vout
->next_frm
= list_entry(vout
->dma_queue
.next
,
632 struct videobuf_buffer
, queue
);
633 list_del(&vout
->next_frm
->queue
);
635 vout
->next_frm
->state
= VIDEOBUF_ACTIVE
;
637 addr
= (unsigned long) vout
->queued_buf_addr
[vout
->next_frm
->i
]
638 + vout
->cropped_offset
;
640 /* First save the configuration in ovelray structure */
641 ret
= omapvid_init(vout
, addr
);
643 printk(KERN_ERR VOUT_NAME
644 "failed to set overlay info\n");
645 /* Enable the pipeline and set the Go bit */
646 ret
= omapvid_apply_changes(vout
);
648 printk(KERN_ERR VOUT_NAME
"failed to change mode\n");
651 spin_unlock(&vout
->vbq_lock
);
654 /* Video buffer call backs */
657 * Buffer setup function is called by videobuf layer when REQBUF ioctl is
658 * called. This is used to setup buffers and return size and count of
659 * buffers allocated. After the call to this buffer, videobuf layer will
660 * setup buffer queue depending on the size and count of buffers
662 static int omap_vout_buffer_setup(struct videobuf_queue
*q
, unsigned int *count
,
665 int startindex
= 0, i
, j
;
666 u32 phy_addr
= 0, virt_addr
= 0;
667 struct omap_vout_device
*vout
= q
->priv_data
;
668 struct omapvideo_info
*ovid
= &vout
->vid_info
;
669 int vid_max_buf_size
;
674 vid_max_buf_size
= vout
->vid
== OMAP_VIDEO1
? video1_bufsize
:
677 if (V4L2_BUF_TYPE_VIDEO_OUTPUT
!= q
->type
)
680 startindex
= (vout
->vid
== OMAP_VIDEO1
) ?
681 video1_numbuffers
: video2_numbuffers
;
682 if (V4L2_MEMORY_MMAP
== vout
->memory
&& *count
< startindex
)
685 if (ovid
->rotation_type
== VOUT_ROT_VRFB
) {
686 if (omap_vout_vrfb_buffer_setup(vout
, count
, startindex
))
690 if (V4L2_MEMORY_MMAP
!= vout
->memory
)
693 /* Now allocated the V4L2 buffers */
694 *size
= PAGE_ALIGN(vout
->pix
.width
* vout
->pix
.height
* vout
->bpp
);
695 startindex
= (vout
->vid
== OMAP_VIDEO1
) ?
696 video1_numbuffers
: video2_numbuffers
;
698 /* Check the size of the buffer */
699 if (*size
> vid_max_buf_size
) {
700 v4l2_err(&vout
->vid_dev
->v4l2_dev
,
701 "buffer allocation mismatch [%u] [%u]\n",
702 *size
, vout
->buffer_size
);
706 for (i
= startindex
; i
< *count
; i
++) {
707 vout
->buffer_size
= *size
;
709 virt_addr
= omap_vout_alloc_buffer(vout
->buffer_size
,
712 if (ovid
->rotation_type
== VOUT_ROT_NONE
) {
715 if (!is_rotation_enabled(vout
))
717 /* Free the VRFB buffers if no space for V4L2 buffers */
718 for (j
= i
; j
< *count
; j
++) {
719 omap_vout_free_buffer(
720 vout
->smsshado_virt_addr
[j
],
721 vout
->smsshado_size
);
722 vout
->smsshado_virt_addr
[j
] = 0;
723 vout
->smsshado_phy_addr
[j
] = 0;
727 vout
->buf_virt_addr
[i
] = virt_addr
;
728 vout
->buf_phy_addr
[i
] = phy_addr
;
730 *count
= vout
->buffer_allocated
= i
;
736 * Free the V4L2 buffers additionally allocated than default
739 static void omap_vout_free_extra_buffers(struct omap_vout_device
*vout
)
741 int num_buffers
= 0, i
;
743 num_buffers
= (vout
->vid
== OMAP_VIDEO1
) ?
744 video1_numbuffers
: video2_numbuffers
;
746 for (i
= num_buffers
; i
< vout
->buffer_allocated
; i
++) {
747 if (vout
->buf_virt_addr
[i
])
748 omap_vout_free_buffer(vout
->buf_virt_addr
[i
],
751 vout
->buf_virt_addr
[i
] = 0;
752 vout
->buf_phy_addr
[i
] = 0;
754 vout
->buffer_allocated
= num_buffers
;
758 * This function will be called when VIDIOC_QBUF ioctl is called.
759 * It prepare buffers before give out for the display. This function
760 * converts user space virtual address into physical address if userptr memory
761 * exchange mechanism is used. If rotation is enabled, it copies entire
762 * buffer into VRFB memory space before giving it to the DSS.
764 static int omap_vout_buffer_prepare(struct videobuf_queue
*q
,
765 struct videobuf_buffer
*vb
,
766 enum v4l2_field field
)
768 struct omap_vout_device
*vout
= q
->priv_data
;
769 struct omapvideo_info
*ovid
= &vout
->vid_info
;
771 if (VIDEOBUF_NEEDS_INIT
== vb
->state
) {
772 vb
->width
= vout
->pix
.width
;
773 vb
->height
= vout
->pix
.height
;
774 vb
->size
= vb
->width
* vb
->height
* vout
->bpp
;
777 vb
->state
= VIDEOBUF_PREPARED
;
778 /* if user pointer memory mechanism is used, get the physical
779 * address of the buffer
781 if (V4L2_MEMORY_USERPTR
== vb
->memory
) {
784 /* Physical address */
785 vout
->queued_buf_addr
[vb
->i
] = (u8
*)
786 omap_vout_uservirt_to_phys(vb
->baddr
);
791 addr
= (unsigned long) vout
->buf_virt_addr
[vb
->i
];
792 size
= (unsigned long) vb
->size
;
794 dma_addr
= dma_map_single(vout
->vid_dev
->v4l2_dev
.dev
, (void *) addr
,
795 size
, DMA_TO_DEVICE
);
796 if (dma_mapping_error(vout
->vid_dev
->v4l2_dev
.dev
, dma_addr
))
797 v4l2_err(&vout
->vid_dev
->v4l2_dev
, "dma_map_single failed\n");
799 vout
->queued_buf_addr
[vb
->i
] = (u8
*)vout
->buf_phy_addr
[vb
->i
];
802 if (ovid
->rotation_type
== VOUT_ROT_VRFB
)
803 return omap_vout_prepare_vrfb(vout
, vb
);
809 * Buffer queue function will be called from the videobuf layer when _QBUF
810 * ioctl is called. It is used to enqueue buffer, which is ready to be
813 static void omap_vout_buffer_queue(struct videobuf_queue
*q
,
814 struct videobuf_buffer
*vb
)
816 struct omap_vout_device
*vout
= q
->priv_data
;
818 /* Driver is also maintainig a queue. So enqueue buffer in the driver
820 list_add_tail(&vb
->queue
, &vout
->dma_queue
);
822 vb
->state
= VIDEOBUF_QUEUED
;
826 * Buffer release function is called from videobuf layer to release buffer
827 * which are already allocated
829 static void omap_vout_buffer_release(struct videobuf_queue
*q
,
830 struct videobuf_buffer
*vb
)
832 struct omap_vout_device
*vout
= q
->priv_data
;
834 vb
->state
= VIDEOBUF_NEEDS_INIT
;
836 if (V4L2_MEMORY_MMAP
!= vout
->memory
)
843 static unsigned int omap_vout_poll(struct file
*file
,
844 struct poll_table_struct
*wait
)
846 struct omap_vout_device
*vout
= file
->private_data
;
847 struct videobuf_queue
*q
= &vout
->vbq
;
849 return videobuf_poll_stream(file
, q
, wait
);
852 static void omap_vout_vm_open(struct vm_area_struct
*vma
)
854 struct omap_vout_device
*vout
= vma
->vm_private_data
;
856 v4l2_dbg(1, debug
, &vout
->vid_dev
->v4l2_dev
,
857 "vm_open [vma=%08lx-%08lx]\n", vma
->vm_start
, vma
->vm_end
);
861 static void omap_vout_vm_close(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_close [vma=%08lx-%08lx]\n", vma
->vm_start
, vma
->vm_end
);
870 static struct vm_operations_struct omap_vout_vm_ops
= {
871 .open
= omap_vout_vm_open
,
872 .close
= omap_vout_vm_close
,
875 static int omap_vout_mmap(struct file
*file
, struct vm_area_struct
*vma
)
879 unsigned long start
= vma
->vm_start
;
880 unsigned long size
= (vma
->vm_end
- vma
->vm_start
);
881 struct omap_vout_device
*vout
= file
->private_data
;
882 struct videobuf_queue
*q
= &vout
->vbq
;
884 v4l2_dbg(1, debug
, &vout
->vid_dev
->v4l2_dev
,
885 " %s pgoff=0x%lx, start=0x%lx, end=0x%lx\n", __func__
,
886 vma
->vm_pgoff
, vma
->vm_start
, vma
->vm_end
);
888 /* look for the buffer to map */
889 for (i
= 0; i
< VIDEO_MAX_FRAME
; i
++) {
890 if (NULL
== q
->bufs
[i
])
892 if (V4L2_MEMORY_MMAP
!= q
->bufs
[i
]->memory
)
894 if (q
->bufs
[i
]->boff
== (vma
->vm_pgoff
<< PAGE_SHIFT
))
898 if (VIDEO_MAX_FRAME
== i
) {
899 v4l2_dbg(1, debug
, &vout
->vid_dev
->v4l2_dev
,
900 "offset invalid [offset=0x%lx]\n",
901 (vma
->vm_pgoff
<< PAGE_SHIFT
));
904 /* Check the size of the buffer */
905 if (size
> vout
->buffer_size
) {
906 v4l2_err(&vout
->vid_dev
->v4l2_dev
,
907 "insufficient memory [%lu] [%u]\n",
908 size
, vout
->buffer_size
);
912 q
->bufs
[i
]->baddr
= vma
->vm_start
;
914 vma
->vm_flags
|= VM_DONTEXPAND
| VM_DONTDUMP
;
915 vma
->vm_page_prot
= pgprot_writecombine(vma
->vm_page_prot
);
916 vma
->vm_ops
= &omap_vout_vm_ops
;
917 vma
->vm_private_data
= (void *) vout
;
918 pos
= (void *)vout
->buf_virt_addr
[i
];
919 vma
->vm_pgoff
= virt_to_phys((void *)pos
) >> PAGE_SHIFT
;
922 pfn
= virt_to_phys((void *) pos
) >> PAGE_SHIFT
;
923 if (remap_pfn_range(vma
, start
, pfn
, PAGE_SIZE
, PAGE_SHARED
))
930 v4l2_dbg(1, debug
, &vout
->vid_dev
->v4l2_dev
, "Exiting %s\n", __func__
);
935 static int omap_vout_release(struct file
*file
)
938 struct videobuf_queue
*q
;
939 struct omapvideo_info
*ovid
;
940 struct omap_vout_device
*vout
= file
->private_data
;
942 v4l2_dbg(1, debug
, &vout
->vid_dev
->v4l2_dev
, "Entering %s\n", __func__
);
943 ovid
= &vout
->vid_info
;
949 /* Disable all the overlay managers connected with this interface */
950 for (i
= 0; i
< ovid
->num_overlays
; i
++) {
951 struct omap_overlay
*ovl
= ovid
->overlays
[i
];
952 if (ovl
->manager
&& ovl
->manager
->device
)
955 /* Turn off the pipeline */
956 ret
= omapvid_apply_changes(vout
);
958 v4l2_warn(&vout
->vid_dev
->v4l2_dev
,
959 "Unable to apply changes\n");
961 /* Free all buffers */
962 omap_vout_free_extra_buffers(vout
);
964 /* Free the VRFB buffers only if they are allocated
965 * during reqbufs. Don't free if init time allocated
967 if (ovid
->rotation_type
== VOUT_ROT_VRFB
) {
968 if (!vout
->vrfb_static_allocation
)
969 omap_vout_free_vrfb_buffers(vout
);
971 videobuf_mmap_free(q
);
973 /* Even if apply changes fails we should continue
974 freeing allocated memory */
975 if (vout
->streaming
) {
978 mask
= DISPC_IRQ_VSYNC
| DISPC_IRQ_EVSYNC_EVEN
|
979 DISPC_IRQ_EVSYNC_ODD
| DISPC_IRQ_VSYNC2
;
980 omap_dispc_unregister_isr(omap_vout_isr
, vout
, mask
);
983 videobuf_streamoff(q
);
984 videobuf_queue_cancel(q
);
987 if (vout
->mmap_count
!= 0)
988 vout
->mmap_count
= 0;
991 file
->private_data
= NULL
;
993 if (vout
->buffer_allocated
)
994 videobuf_mmap_free(q
);
996 v4l2_dbg(1, debug
, &vout
->vid_dev
->v4l2_dev
, "Exiting %s\n", __func__
);
1000 static int omap_vout_open(struct file
*file
)
1002 struct videobuf_queue
*q
;
1003 struct omap_vout_device
*vout
= NULL
;
1005 vout
= video_drvdata(file
);
1006 v4l2_dbg(1, debug
, &vout
->vid_dev
->v4l2_dev
, "Entering %s\n", __func__
);
1011 /* for now, we only support single open */
1017 file
->private_data
= vout
;
1018 vout
->type
= V4L2_BUF_TYPE_VIDEO_OUTPUT
;
1021 video_vbq_ops
.buf_setup
= omap_vout_buffer_setup
;
1022 video_vbq_ops
.buf_prepare
= omap_vout_buffer_prepare
;
1023 video_vbq_ops
.buf_release
= omap_vout_buffer_release
;
1024 video_vbq_ops
.buf_queue
= omap_vout_buffer_queue
;
1025 spin_lock_init(&vout
->vbq_lock
);
1027 videobuf_queue_dma_contig_init(q
, &video_vbq_ops
, q
->dev
,
1028 &vout
->vbq_lock
, vout
->type
, V4L2_FIELD_NONE
,
1029 sizeof(struct videobuf_buffer
), vout
, NULL
);
1031 v4l2_dbg(1, debug
, &vout
->vid_dev
->v4l2_dev
, "Exiting %s\n", __func__
);
1038 static int vidioc_querycap(struct file
*file
, void *fh
,
1039 struct v4l2_capability
*cap
)
1041 struct omap_vout_device
*vout
= fh
;
1043 strlcpy(cap
->driver
, VOUT_NAME
, sizeof(cap
->driver
));
1044 strlcpy(cap
->card
, vout
->vfd
->name
, sizeof(cap
->card
));
1045 cap
->bus_info
[0] = '\0';
1046 cap
->capabilities
= V4L2_CAP_STREAMING
| V4L2_CAP_VIDEO_OUTPUT
|
1047 V4L2_CAP_VIDEO_OUTPUT_OVERLAY
;
1052 static int vidioc_enum_fmt_vid_out(struct file
*file
, void *fh
,
1053 struct v4l2_fmtdesc
*fmt
)
1055 int index
= fmt
->index
;
1057 if (index
>= NUM_OUTPUT_FORMATS
)
1060 fmt
->flags
= omap_formats
[index
].flags
;
1061 strlcpy(fmt
->description
, omap_formats
[index
].description
,
1062 sizeof(fmt
->description
));
1063 fmt
->pixelformat
= omap_formats
[index
].pixelformat
;
1068 static int vidioc_g_fmt_vid_out(struct file
*file
, void *fh
,
1069 struct v4l2_format
*f
)
1071 struct omap_vout_device
*vout
= fh
;
1073 f
->fmt
.pix
= vout
->pix
;
1078 static int vidioc_try_fmt_vid_out(struct file
*file
, void *fh
,
1079 struct v4l2_format
*f
)
1081 struct omap_overlay
*ovl
;
1082 struct omapvideo_info
*ovid
;
1083 struct omap_video_timings
*timing
;
1084 struct omap_vout_device
*vout
= fh
;
1086 ovid
= &vout
->vid_info
;
1087 ovl
= ovid
->overlays
[0];
1089 if (!ovl
->manager
|| !ovl
->manager
->device
)
1091 /* get the display device attached to the overlay */
1092 timing
= &ovl
->manager
->device
->panel
.timings
;
1094 vout
->fbuf
.fmt
.height
= timing
->y_res
;
1095 vout
->fbuf
.fmt
.width
= timing
->x_res
;
1097 omap_vout_try_format(&f
->fmt
.pix
);
1101 static int vidioc_s_fmt_vid_out(struct file
*file
, void *fh
,
1102 struct v4l2_format
*f
)
1105 struct omap_overlay
*ovl
;
1106 struct omapvideo_info
*ovid
;
1107 struct omap_video_timings
*timing
;
1108 struct omap_vout_device
*vout
= fh
;
1110 if (vout
->streaming
)
1113 mutex_lock(&vout
->lock
);
1115 ovid
= &vout
->vid_info
;
1116 ovl
= ovid
->overlays
[0];
1118 /* get the display device attached to the overlay */
1119 if (!ovl
->manager
|| !ovl
->manager
->device
) {
1121 goto s_fmt_vid_out_exit
;
1123 timing
= &ovl
->manager
->device
->panel
.timings
;
1125 /* We dont support RGB24-packed mode if vrfb rotation
1127 if ((is_rotation_enabled(vout
)) &&
1128 f
->fmt
.pix
.pixelformat
== V4L2_PIX_FMT_RGB24
) {
1130 goto s_fmt_vid_out_exit
;
1133 /* get the framebuffer parameters */
1135 if (is_rotation_90_or_270(vout
)) {
1136 vout
->fbuf
.fmt
.height
= timing
->x_res
;
1137 vout
->fbuf
.fmt
.width
= timing
->y_res
;
1139 vout
->fbuf
.fmt
.height
= timing
->y_res
;
1140 vout
->fbuf
.fmt
.width
= timing
->x_res
;
1143 /* change to samller size is OK */
1145 bpp
= omap_vout_try_format(&f
->fmt
.pix
);
1146 f
->fmt
.pix
.sizeimage
= f
->fmt
.pix
.width
* f
->fmt
.pix
.height
* bpp
;
1148 /* try & set the new output format */
1150 vout
->pix
= f
->fmt
.pix
;
1153 /* If YUYV then vrfb bpp is 2, for others its 1 */
1154 if (V4L2_PIX_FMT_YUYV
== vout
->pix
.pixelformat
||
1155 V4L2_PIX_FMT_UYVY
== vout
->pix
.pixelformat
)
1158 /* set default crop and win */
1159 omap_vout_new_format(&vout
->pix
, &vout
->fbuf
, &vout
->crop
, &vout
->win
);
1161 /* Save the changes in the overlay strcuture */
1162 ret
= omapvid_init(vout
, 0);
1164 v4l2_err(&vout
->vid_dev
->v4l2_dev
, "failed to change mode\n");
1165 goto s_fmt_vid_out_exit
;
1171 mutex_unlock(&vout
->lock
);
1175 static int vidioc_try_fmt_vid_overlay(struct file
*file
, void *fh
,
1176 struct v4l2_format
*f
)
1179 struct omap_vout_device
*vout
= fh
;
1180 struct omap_overlay
*ovl
;
1181 struct omapvideo_info
*ovid
;
1182 struct v4l2_window
*win
= &f
->fmt
.win
;
1184 ovid
= &vout
->vid_info
;
1185 ovl
= ovid
->overlays
[0];
1187 ret
= omap_vout_try_window(&vout
->fbuf
, win
);
1190 if ((ovl
->caps
& OMAP_DSS_OVL_CAP_GLOBAL_ALPHA
) == 0)
1191 win
->global_alpha
= 255;
1193 win
->global_alpha
= f
->fmt
.win
.global_alpha
;
1199 static int vidioc_s_fmt_vid_overlay(struct file
*file
, void *fh
,
1200 struct v4l2_format
*f
)
1203 struct omap_overlay
*ovl
;
1204 struct omapvideo_info
*ovid
;
1205 struct omap_vout_device
*vout
= fh
;
1206 struct v4l2_window
*win
= &f
->fmt
.win
;
1208 mutex_lock(&vout
->lock
);
1209 ovid
= &vout
->vid_info
;
1210 ovl
= ovid
->overlays
[0];
1212 ret
= omap_vout_new_window(&vout
->crop
, &vout
->win
, &vout
->fbuf
, win
);
1214 /* Video1 plane does not support global alpha on OMAP3 */
1215 if ((ovl
->caps
& OMAP_DSS_OVL_CAP_GLOBAL_ALPHA
) == 0)
1216 vout
->win
.global_alpha
= 255;
1218 vout
->win
.global_alpha
= f
->fmt
.win
.global_alpha
;
1220 vout
->win
.chromakey
= f
->fmt
.win
.chromakey
;
1222 mutex_unlock(&vout
->lock
);
1226 static int vidioc_enum_fmt_vid_overlay(struct file
*file
, void *fh
,
1227 struct v4l2_fmtdesc
*fmt
)
1229 int index
= fmt
->index
;
1231 if (index
>= NUM_OUTPUT_FORMATS
)
1234 fmt
->flags
= omap_formats
[index
].flags
;
1235 strlcpy(fmt
->description
, omap_formats
[index
].description
,
1236 sizeof(fmt
->description
));
1237 fmt
->pixelformat
= omap_formats
[index
].pixelformat
;
1241 static int vidioc_g_fmt_vid_overlay(struct file
*file
, void *fh
,
1242 struct v4l2_format
*f
)
1245 struct omap_overlay
*ovl
;
1246 struct omapvideo_info
*ovid
;
1247 struct omap_vout_device
*vout
= fh
;
1248 struct omap_overlay_manager_info info
;
1249 struct v4l2_window
*win
= &f
->fmt
.win
;
1251 ovid
= &vout
->vid_info
;
1252 ovl
= ovid
->overlays
[0];
1254 win
->w
= vout
->win
.w
;
1255 win
->field
= vout
->win
.field
;
1256 win
->global_alpha
= vout
->win
.global_alpha
;
1258 if (ovl
->manager
&& ovl
->manager
->get_manager_info
) {
1259 ovl
->manager
->get_manager_info(ovl
->manager
, &info
);
1260 key_value
= info
.trans_key
;
1262 win
->chromakey
= key_value
;
1266 static int vidioc_cropcap(struct file
*file
, void *fh
,
1267 struct v4l2_cropcap
*cropcap
)
1269 struct omap_vout_device
*vout
= fh
;
1270 struct v4l2_pix_format
*pix
= &vout
->pix
;
1272 if (cropcap
->type
!= V4L2_BUF_TYPE_VIDEO_OUTPUT
)
1275 /* Width and height are always even */
1276 cropcap
->bounds
.width
= pix
->width
& ~1;
1277 cropcap
->bounds
.height
= pix
->height
& ~1;
1279 omap_vout_default_crop(&vout
->pix
, &vout
->fbuf
, &cropcap
->defrect
);
1280 cropcap
->pixelaspect
.numerator
= 1;
1281 cropcap
->pixelaspect
.denominator
= 1;
1285 static int vidioc_g_crop(struct file
*file
, void *fh
, struct v4l2_crop
*crop
)
1287 struct omap_vout_device
*vout
= fh
;
1289 if (crop
->type
!= V4L2_BUF_TYPE_VIDEO_OUTPUT
)
1291 crop
->c
= vout
->crop
;
1295 static int vidioc_s_crop(struct file
*file
, void *fh
, const struct v4l2_crop
*crop
)
1298 struct omap_vout_device
*vout
= fh
;
1299 struct omapvideo_info
*ovid
;
1300 struct omap_overlay
*ovl
;
1301 struct omap_video_timings
*timing
;
1303 if (vout
->streaming
)
1306 mutex_lock(&vout
->lock
);
1307 ovid
= &vout
->vid_info
;
1308 ovl
= ovid
->overlays
[0];
1310 if (!ovl
->manager
|| !ovl
->manager
->device
) {
1314 /* get the display device attached to the overlay */
1315 timing
= &ovl
->manager
->device
->panel
.timings
;
1317 if (is_rotation_90_or_270(vout
)) {
1318 vout
->fbuf
.fmt
.height
= timing
->x_res
;
1319 vout
->fbuf
.fmt
.width
= timing
->y_res
;
1321 vout
->fbuf
.fmt
.height
= timing
->y_res
;
1322 vout
->fbuf
.fmt
.width
= timing
->x_res
;
1325 if (crop
->type
== V4L2_BUF_TYPE_VIDEO_OUTPUT
)
1326 ret
= omap_vout_new_crop(&vout
->pix
, &vout
->crop
, &vout
->win
,
1327 &vout
->fbuf
, &crop
->c
);
1330 mutex_unlock(&vout
->lock
);
1334 static int vidioc_queryctrl(struct file
*file
, void *fh
,
1335 struct v4l2_queryctrl
*ctrl
)
1340 case V4L2_CID_ROTATE
:
1341 ret
= v4l2_ctrl_query_fill(ctrl
, 0, 270, 90, 0);
1343 case V4L2_CID_BG_COLOR
:
1344 ret
= v4l2_ctrl_query_fill(ctrl
, 0, 0xFFFFFF, 1, 0);
1346 case V4L2_CID_VFLIP
:
1347 ret
= v4l2_ctrl_query_fill(ctrl
, 0, 1, 1, 0);
1350 ctrl
->name
[0] = '\0';
1356 static int vidioc_g_ctrl(struct file
*file
, void *fh
, struct v4l2_control
*ctrl
)
1359 struct omap_vout_device
*vout
= fh
;
1362 case V4L2_CID_ROTATE
:
1363 ctrl
->value
= vout
->control
[0].value
;
1365 case V4L2_CID_BG_COLOR
:
1367 struct omap_overlay_manager_info info
;
1368 struct omap_overlay
*ovl
;
1370 ovl
= vout
->vid_info
.overlays
[0];
1371 if (!ovl
->manager
|| !ovl
->manager
->get_manager_info
) {
1376 ovl
->manager
->get_manager_info(ovl
->manager
, &info
);
1377 ctrl
->value
= info
.default_color
;
1380 case V4L2_CID_VFLIP
:
1381 ctrl
->value
= vout
->control
[2].value
;
1389 static int vidioc_s_ctrl(struct file
*file
, void *fh
, struct v4l2_control
*a
)
1392 struct omap_vout_device
*vout
= fh
;
1395 case V4L2_CID_ROTATE
:
1397 struct omapvideo_info
*ovid
;
1398 int rotation
= a
->value
;
1400 ovid
= &vout
->vid_info
;
1402 mutex_lock(&vout
->lock
);
1403 if (rotation
&& ovid
->rotation_type
== VOUT_ROT_NONE
) {
1404 mutex_unlock(&vout
->lock
);
1409 if (rotation
&& vout
->pix
.pixelformat
== V4L2_PIX_FMT_RGB24
) {
1410 mutex_unlock(&vout
->lock
);
1415 if (v4l2_rot_to_dss_rot(rotation
, &vout
->rotation
,
1417 mutex_unlock(&vout
->lock
);
1422 vout
->control
[0].value
= rotation
;
1423 mutex_unlock(&vout
->lock
);
1426 case V4L2_CID_BG_COLOR
:
1428 struct omap_overlay
*ovl
;
1429 unsigned int color
= a
->value
;
1430 struct omap_overlay_manager_info info
;
1432 ovl
= vout
->vid_info
.overlays
[0];
1434 mutex_lock(&vout
->lock
);
1435 if (!ovl
->manager
|| !ovl
->manager
->get_manager_info
) {
1436 mutex_unlock(&vout
->lock
);
1441 ovl
->manager
->get_manager_info(ovl
->manager
, &info
);
1442 info
.default_color
= color
;
1443 if (ovl
->manager
->set_manager_info(ovl
->manager
, &info
)) {
1444 mutex_unlock(&vout
->lock
);
1449 vout
->control
[1].value
= color
;
1450 mutex_unlock(&vout
->lock
);
1453 case V4L2_CID_VFLIP
:
1455 struct omap_overlay
*ovl
;
1456 struct omapvideo_info
*ovid
;
1457 unsigned int mirror
= a
->value
;
1459 ovid
= &vout
->vid_info
;
1460 ovl
= ovid
->overlays
[0];
1462 mutex_lock(&vout
->lock
);
1463 if (mirror
&& ovid
->rotation_type
== VOUT_ROT_NONE
) {
1464 mutex_unlock(&vout
->lock
);
1469 if (mirror
&& vout
->pix
.pixelformat
== V4L2_PIX_FMT_RGB24
) {
1470 mutex_unlock(&vout
->lock
);
1474 vout
->mirror
= mirror
;
1475 vout
->control
[2].value
= mirror
;
1476 mutex_unlock(&vout
->lock
);
1485 static int vidioc_reqbufs(struct file
*file
, void *fh
,
1486 struct v4l2_requestbuffers
*req
)
1489 unsigned int i
, num_buffers
= 0;
1490 struct omap_vout_device
*vout
= fh
;
1491 struct videobuf_queue
*q
= &vout
->vbq
;
1493 if ((req
->type
!= V4L2_BUF_TYPE_VIDEO_OUTPUT
) || (req
->count
< 0))
1495 /* if memory is not mmp or userptr
1497 if ((V4L2_MEMORY_MMAP
!= req
->memory
) &&
1498 (V4L2_MEMORY_USERPTR
!= req
->memory
))
1501 mutex_lock(&vout
->lock
);
1502 /* Cannot be requested when streaming is on */
1503 if (vout
->streaming
) {
1508 /* If buffers are already allocated free them */
1509 if (q
->bufs
[0] && (V4L2_MEMORY_MMAP
== q
->bufs
[0]->memory
)) {
1510 if (vout
->mmap_count
) {
1514 num_buffers
= (vout
->vid
== OMAP_VIDEO1
) ?
1515 video1_numbuffers
: video2_numbuffers
;
1516 for (i
= num_buffers
; i
< vout
->buffer_allocated
; i
++) {
1517 omap_vout_free_buffer(vout
->buf_virt_addr
[i
],
1519 vout
->buf_virt_addr
[i
] = 0;
1520 vout
->buf_phy_addr
[i
] = 0;
1522 vout
->buffer_allocated
= num_buffers
;
1523 videobuf_mmap_free(q
);
1524 } else if (q
->bufs
[0] && (V4L2_MEMORY_USERPTR
== q
->bufs
[0]->memory
)) {
1525 if (vout
->buffer_allocated
) {
1526 videobuf_mmap_free(q
);
1527 for (i
= 0; i
< vout
->buffer_allocated
; i
++) {
1531 vout
->buffer_allocated
= 0;
1535 /*store the memory type in data structure */
1536 vout
->memory
= req
->memory
;
1538 INIT_LIST_HEAD(&vout
->dma_queue
);
1540 /* call videobuf_reqbufs api */
1541 ret
= videobuf_reqbufs(q
, req
);
1545 vout
->buffer_allocated
= req
->count
;
1548 mutex_unlock(&vout
->lock
);
1552 static int vidioc_querybuf(struct file
*file
, void *fh
,
1553 struct v4l2_buffer
*b
)
1555 struct omap_vout_device
*vout
= fh
;
1557 return videobuf_querybuf(&vout
->vbq
, b
);
1560 static int vidioc_qbuf(struct file
*file
, void *fh
,
1561 struct v4l2_buffer
*buffer
)
1563 struct omap_vout_device
*vout
= fh
;
1564 struct videobuf_queue
*q
= &vout
->vbq
;
1566 if ((V4L2_BUF_TYPE_VIDEO_OUTPUT
!= buffer
->type
) ||
1567 (buffer
->index
>= vout
->buffer_allocated
) ||
1568 (q
->bufs
[buffer
->index
]->memory
!= buffer
->memory
)) {
1571 if (V4L2_MEMORY_USERPTR
== buffer
->memory
) {
1572 if ((buffer
->length
< vout
->pix
.sizeimage
) ||
1573 (0 == buffer
->m
.userptr
)) {
1578 if ((is_rotation_enabled(vout
)) &&
1579 vout
->vrfb_dma_tx
.req_status
== DMA_CHAN_NOT_ALLOTED
) {
1580 v4l2_warn(&vout
->vid_dev
->v4l2_dev
,
1581 "DMA Channel not allocated for Rotation\n");
1585 return videobuf_qbuf(q
, buffer
);
1588 static int vidioc_dqbuf(struct file
*file
, void *fh
, struct v4l2_buffer
*b
)
1590 struct omap_vout_device
*vout
= fh
;
1591 struct videobuf_queue
*q
= &vout
->vbq
;
1596 struct videobuf_buffer
*vb
;
1598 vb
= q
->bufs
[b
->index
];
1600 if (!vout
->streaming
)
1603 if (file
->f_flags
& O_NONBLOCK
)
1604 /* Call videobuf_dqbuf for non blocking mode */
1605 ret
= videobuf_dqbuf(q
, (struct v4l2_buffer
*)b
, 1);
1607 /* Call videobuf_dqbuf for blocking mode */
1608 ret
= videobuf_dqbuf(q
, (struct v4l2_buffer
*)b
, 0);
1610 addr
= (unsigned long) vout
->buf_phy_addr
[vb
->i
];
1611 size
= (unsigned long) vb
->size
;
1612 dma_unmap_single(vout
->vid_dev
->v4l2_dev
.dev
, addr
,
1613 size
, DMA_TO_DEVICE
);
1617 static int vidioc_streamon(struct file
*file
, void *fh
, enum v4l2_buf_type i
)
1620 u32 addr
= 0, mask
= 0;
1621 struct omap_vout_device
*vout
= fh
;
1622 struct videobuf_queue
*q
= &vout
->vbq
;
1623 struct omapvideo_info
*ovid
= &vout
->vid_info
;
1625 mutex_lock(&vout
->lock
);
1627 if (vout
->streaming
) {
1632 ret
= videobuf_streamon(q
);
1636 if (list_empty(&vout
->dma_queue
)) {
1641 /* Get the next frame from the buffer queue */
1642 vout
->next_frm
= vout
->cur_frm
= list_entry(vout
->dma_queue
.next
,
1643 struct videobuf_buffer
, queue
);
1644 /* Remove buffer from the buffer queue */
1645 list_del(&vout
->cur_frm
->queue
);
1646 /* Mark state of the current frame to active */
1647 vout
->cur_frm
->state
= VIDEOBUF_ACTIVE
;
1648 /* Initialize field_id and started member */
1651 /* set flag here. Next QBUF will start DMA */
1652 vout
->streaming
= 1;
1654 vout
->first_int
= 1;
1656 if (omap_vout_calculate_offset(vout
)) {
1660 addr
= (unsigned long) vout
->queued_buf_addr
[vout
->cur_frm
->i
]
1661 + vout
->cropped_offset
;
1663 mask
= DISPC_IRQ_VSYNC
| DISPC_IRQ_EVSYNC_EVEN
| DISPC_IRQ_EVSYNC_ODD
1666 omap_dispc_register_isr(omap_vout_isr
, vout
, mask
);
1668 for (j
= 0; j
< ovid
->num_overlays
; j
++) {
1669 struct omap_overlay
*ovl
= ovid
->overlays
[j
];
1671 if (ovl
->manager
&& ovl
->manager
->device
) {
1672 struct omap_overlay_info info
;
1673 ovl
->get_overlay_info(ovl
, &info
);
1675 if (ovl
->set_overlay_info(ovl
, &info
)) {
1682 /* First save the configuration in ovelray structure */
1683 ret
= omapvid_init(vout
, addr
);
1685 v4l2_err(&vout
->vid_dev
->v4l2_dev
,
1686 "failed to set overlay info\n");
1687 /* Enable the pipeline and set the Go bit */
1688 ret
= omapvid_apply_changes(vout
);
1690 v4l2_err(&vout
->vid_dev
->v4l2_dev
, "failed to change mode\n");
1692 for (j
= 0; j
< ovid
->num_overlays
; j
++) {
1693 struct omap_overlay
*ovl
= ovid
->overlays
[j
];
1695 if (ovl
->manager
&& ovl
->manager
->device
) {
1696 ret
= ovl
->enable(ovl
);
1706 ret
= videobuf_streamoff(q
);
1708 mutex_unlock(&vout
->lock
);
1712 static int vidioc_streamoff(struct file
*file
, void *fh
, enum v4l2_buf_type i
)
1716 struct omap_vout_device
*vout
= fh
;
1717 struct omapvideo_info
*ovid
= &vout
->vid_info
;
1719 if (!vout
->streaming
)
1722 vout
->streaming
= 0;
1723 mask
= DISPC_IRQ_VSYNC
| DISPC_IRQ_EVSYNC_EVEN
| DISPC_IRQ_EVSYNC_ODD
1726 omap_dispc_unregister_isr(omap_vout_isr
, vout
, mask
);
1728 for (j
= 0; j
< ovid
->num_overlays
; j
++) {
1729 struct omap_overlay
*ovl
= ovid
->overlays
[j
];
1731 if (ovl
->manager
&& ovl
->manager
->device
)
1735 /* Turn of the pipeline */
1736 ret
= omapvid_apply_changes(vout
);
1738 v4l2_err(&vout
->vid_dev
->v4l2_dev
, "failed to change mode in"
1741 INIT_LIST_HEAD(&vout
->dma_queue
);
1742 ret
= videobuf_streamoff(&vout
->vbq
);
1747 static int vidioc_s_fbuf(struct file
*file
, void *fh
,
1748 const struct v4l2_framebuffer
*a
)
1751 struct omap_overlay
*ovl
;
1752 struct omapvideo_info
*ovid
;
1753 struct omap_vout_device
*vout
= fh
;
1754 struct omap_overlay_manager_info info
;
1755 enum omap_dss_trans_key_type key_type
= OMAP_DSS_COLOR_KEY_GFX_DST
;
1757 ovid
= &vout
->vid_info
;
1758 ovl
= ovid
->overlays
[0];
1760 /* OMAP DSS doesn't support Source and Destination color
1762 if ((a
->flags
& V4L2_FBUF_FLAG_SRC_CHROMAKEY
) &&
1763 (a
->flags
& V4L2_FBUF_FLAG_CHROMAKEY
))
1765 /* OMAP DSS Doesn't support the Destination color key
1766 and alpha blending together */
1767 if ((a
->flags
& V4L2_FBUF_FLAG_CHROMAKEY
) &&
1768 (a
->flags
& V4L2_FBUF_FLAG_LOCAL_ALPHA
))
1771 if ((a
->flags
& V4L2_FBUF_FLAG_SRC_CHROMAKEY
)) {
1772 vout
->fbuf
.flags
|= V4L2_FBUF_FLAG_SRC_CHROMAKEY
;
1773 key_type
= OMAP_DSS_COLOR_KEY_VID_SRC
;
1775 vout
->fbuf
.flags
&= ~V4L2_FBUF_FLAG_SRC_CHROMAKEY
;
1777 if ((a
->flags
& V4L2_FBUF_FLAG_CHROMAKEY
)) {
1778 vout
->fbuf
.flags
|= V4L2_FBUF_FLAG_CHROMAKEY
;
1779 key_type
= OMAP_DSS_COLOR_KEY_GFX_DST
;
1781 vout
->fbuf
.flags
&= ~V4L2_FBUF_FLAG_CHROMAKEY
;
1783 if (a
->flags
& (V4L2_FBUF_FLAG_CHROMAKEY
|
1784 V4L2_FBUF_FLAG_SRC_CHROMAKEY
))
1788 if (ovl
->manager
&& ovl
->manager
->get_manager_info
&&
1789 ovl
->manager
->set_manager_info
) {
1791 ovl
->manager
->get_manager_info(ovl
->manager
, &info
);
1792 info
.trans_enabled
= enable
;
1793 info
.trans_key_type
= key_type
;
1794 info
.trans_key
= vout
->win
.chromakey
;
1796 if (ovl
->manager
->set_manager_info(ovl
->manager
, &info
))
1799 if (a
->flags
& V4L2_FBUF_FLAG_LOCAL_ALPHA
) {
1800 vout
->fbuf
.flags
|= V4L2_FBUF_FLAG_LOCAL_ALPHA
;
1803 vout
->fbuf
.flags
&= ~V4L2_FBUF_FLAG_LOCAL_ALPHA
;
1806 if (ovl
->manager
&& ovl
->manager
->get_manager_info
&&
1807 ovl
->manager
->set_manager_info
) {
1808 ovl
->manager
->get_manager_info(ovl
->manager
, &info
);
1809 /* enable this only if there is no zorder cap */
1810 if ((ovl
->caps
& OMAP_DSS_OVL_CAP_ZORDER
) == 0)
1811 info
.partial_alpha_enabled
= enable
;
1812 if (ovl
->manager
->set_manager_info(ovl
->manager
, &info
))
1819 static int vidioc_g_fbuf(struct file
*file
, void *fh
,
1820 struct v4l2_framebuffer
*a
)
1822 struct omap_overlay
*ovl
;
1823 struct omapvideo_info
*ovid
;
1824 struct omap_vout_device
*vout
= fh
;
1825 struct omap_overlay_manager_info info
;
1827 ovid
= &vout
->vid_info
;
1828 ovl
= ovid
->overlays
[0];
1830 /* The video overlay must stay within the framebuffer and can't be
1831 positioned independently. */
1832 a
->flags
= V4L2_FBUF_FLAG_OVERLAY
;
1833 a
->capability
= V4L2_FBUF_CAP_LOCAL_ALPHA
| V4L2_FBUF_CAP_CHROMAKEY
1834 | V4L2_FBUF_CAP_SRC_CHROMAKEY
;
1836 if (ovl
->manager
&& ovl
->manager
->get_manager_info
) {
1837 ovl
->manager
->get_manager_info(ovl
->manager
, &info
);
1838 if (info
.trans_key_type
== OMAP_DSS_COLOR_KEY_VID_SRC
)
1839 a
->flags
|= V4L2_FBUF_FLAG_SRC_CHROMAKEY
;
1840 if (info
.trans_key_type
== OMAP_DSS_COLOR_KEY_GFX_DST
)
1841 a
->flags
|= V4L2_FBUF_FLAG_CHROMAKEY
;
1843 if (ovl
->manager
&& ovl
->manager
->get_manager_info
) {
1844 ovl
->manager
->get_manager_info(ovl
->manager
, &info
);
1845 if (info
.partial_alpha_enabled
)
1846 a
->flags
|= V4L2_FBUF_FLAG_LOCAL_ALPHA
;
1852 static const struct v4l2_ioctl_ops vout_ioctl_ops
= {
1853 .vidioc_querycap
= vidioc_querycap
,
1854 .vidioc_enum_fmt_vid_out
= vidioc_enum_fmt_vid_out
,
1855 .vidioc_g_fmt_vid_out
= vidioc_g_fmt_vid_out
,
1856 .vidioc_try_fmt_vid_out
= vidioc_try_fmt_vid_out
,
1857 .vidioc_s_fmt_vid_out
= vidioc_s_fmt_vid_out
,
1858 .vidioc_queryctrl
= vidioc_queryctrl
,
1859 .vidioc_g_ctrl
= vidioc_g_ctrl
,
1860 .vidioc_s_fbuf
= vidioc_s_fbuf
,
1861 .vidioc_g_fbuf
= vidioc_g_fbuf
,
1862 .vidioc_s_ctrl
= vidioc_s_ctrl
,
1863 .vidioc_try_fmt_vid_overlay
= vidioc_try_fmt_vid_overlay
,
1864 .vidioc_s_fmt_vid_overlay
= vidioc_s_fmt_vid_overlay
,
1865 .vidioc_enum_fmt_vid_overlay
= vidioc_enum_fmt_vid_overlay
,
1866 .vidioc_g_fmt_vid_overlay
= vidioc_g_fmt_vid_overlay
,
1867 .vidioc_cropcap
= vidioc_cropcap
,
1868 .vidioc_g_crop
= vidioc_g_crop
,
1869 .vidioc_s_crop
= vidioc_s_crop
,
1870 .vidioc_reqbufs
= vidioc_reqbufs
,
1871 .vidioc_querybuf
= vidioc_querybuf
,
1872 .vidioc_qbuf
= vidioc_qbuf
,
1873 .vidioc_dqbuf
= vidioc_dqbuf
,
1874 .vidioc_streamon
= vidioc_streamon
,
1875 .vidioc_streamoff
= vidioc_streamoff
,
1878 static const struct v4l2_file_operations omap_vout_fops
= {
1879 .owner
= THIS_MODULE
,
1880 .poll
= omap_vout_poll
,
1881 .unlocked_ioctl
= video_ioctl2
,
1882 .mmap
= omap_vout_mmap
,
1883 .open
= omap_vout_open
,
1884 .release
= omap_vout_release
,
1887 /* Init functions used during driver initialization */
1888 /* Initial setup of video_data */
1889 static int __init
omap_vout_setup_video_data(struct omap_vout_device
*vout
)
1891 struct video_device
*vfd
;
1892 struct v4l2_pix_format
*pix
;
1893 struct v4l2_control
*control
;
1894 struct omap_dss_device
*display
=
1895 vout
->vid_info
.overlays
[0]->manager
->device
;
1897 /* set the default pix */
1900 /* Set the default picture of QVGA */
1901 pix
->width
= QQVGA_WIDTH
;
1902 pix
->height
= QQVGA_HEIGHT
;
1904 /* Default pixel format is RGB 5-6-5 */
1905 pix
->pixelformat
= V4L2_PIX_FMT_RGB565
;
1906 pix
->field
= V4L2_FIELD_ANY
;
1907 pix
->bytesperline
= pix
->width
* 2;
1908 pix
->sizeimage
= pix
->bytesperline
* pix
->height
;
1910 pix
->colorspace
= V4L2_COLORSPACE_JPEG
;
1912 vout
->bpp
= RGB565_BPP
;
1913 vout
->fbuf
.fmt
.width
= display
->panel
.timings
.x_res
;
1914 vout
->fbuf
.fmt
.height
= display
->panel
.timings
.y_res
;
1916 /* Set the data structures for the overlay parameters*/
1917 vout
->win
.global_alpha
= 255;
1918 vout
->fbuf
.flags
= 0;
1919 vout
->fbuf
.capability
= V4L2_FBUF_CAP_LOCAL_ALPHA
|
1920 V4L2_FBUF_CAP_SRC_CHROMAKEY
| V4L2_FBUF_CAP_CHROMAKEY
;
1921 vout
->win
.chromakey
= 0;
1923 omap_vout_new_format(pix
, &vout
->fbuf
, &vout
->crop
, &vout
->win
);
1925 /*Initialize the control variables for
1926 rotation, flipping and background color. */
1927 control
= vout
->control
;
1928 control
[0].id
= V4L2_CID_ROTATE
;
1929 control
[0].value
= 0;
1932 vout
->control
[2].id
= V4L2_CID_HFLIP
;
1933 vout
->control
[2].value
= 0;
1934 if (vout
->vid_info
.rotation_type
== VOUT_ROT_VRFB
)
1937 control
[1].id
= V4L2_CID_BG_COLOR
;
1938 control
[1].value
= 0;
1940 /* initialize the video_device struct */
1941 vfd
= vout
->vfd
= video_device_alloc();
1944 printk(KERN_ERR VOUT_NAME
": could not allocate"
1945 " video device struct\n");
1948 vfd
->release
= video_device_release
;
1949 vfd
->ioctl_ops
= &vout_ioctl_ops
;
1951 strlcpy(vfd
->name
, VOUT_NAME
, sizeof(vfd
->name
));
1953 vfd
->fops
= &omap_vout_fops
;
1954 vfd
->v4l2_dev
= &vout
->vid_dev
->v4l2_dev
;
1955 vfd
->vfl_dir
= VFL_DIR_TX
;
1956 mutex_init(&vout
->lock
);
1963 /* Setup video buffers */
1964 static int __init
omap_vout_setup_video_bufs(struct platform_device
*pdev
,
1969 struct omapvideo_info
*ovid
;
1970 struct omap_vout_device
*vout
;
1971 struct v4l2_device
*v4l2_dev
= platform_get_drvdata(pdev
);
1972 struct omap2video_device
*vid_dev
=
1973 container_of(v4l2_dev
, struct omap2video_device
, v4l2_dev
);
1975 vout
= vid_dev
->vouts
[vid_num
];
1976 ovid
= &vout
->vid_info
;
1978 numbuffers
= (vid_num
== 0) ? video1_numbuffers
: video2_numbuffers
;
1979 vout
->buffer_size
= (vid_num
== 0) ? video1_bufsize
: video2_bufsize
;
1980 dev_info(&pdev
->dev
, "Buffer Size = %d\n", vout
->buffer_size
);
1982 for (i
= 0; i
< numbuffers
; i
++) {
1983 vout
->buf_virt_addr
[i
] =
1984 omap_vout_alloc_buffer(vout
->buffer_size
,
1985 (u32
*) &vout
->buf_phy_addr
[i
]);
1986 if (!vout
->buf_virt_addr
[i
]) {
1993 vout
->cropped_offset
= 0;
1995 if (ovid
->rotation_type
== VOUT_ROT_VRFB
) {
1996 int static_vrfb_allocation
= (vid_num
== 0) ?
1997 vid1_static_vrfb_alloc
: vid2_static_vrfb_alloc
;
1998 ret
= omap_vout_setup_vrfb_bufs(pdev
, vid_num
,
1999 static_vrfb_allocation
);
2005 for (i
= 0; i
< numbuffers
; i
++) {
2006 omap_vout_free_buffer(vout
->buf_virt_addr
[i
],
2008 vout
->buf_virt_addr
[i
] = 0;
2009 vout
->buf_phy_addr
[i
] = 0;
2015 /* Create video out devices */
2016 static int __init
omap_vout_create_video_devices(struct platform_device
*pdev
)
2019 struct omap_vout_device
*vout
;
2020 struct video_device
*vfd
= NULL
;
2021 struct v4l2_device
*v4l2_dev
= platform_get_drvdata(pdev
);
2022 struct omap2video_device
*vid_dev
= container_of(v4l2_dev
,
2023 struct omap2video_device
, v4l2_dev
);
2025 for (k
= 0; k
< pdev
->num_resources
; k
++) {
2027 vout
= kzalloc(sizeof(struct omap_vout_device
), GFP_KERNEL
);
2029 dev_err(&pdev
->dev
, ": could not allocate memory\n");
2034 vid_dev
->vouts
[k
] = vout
;
2035 vout
->vid_dev
= vid_dev
;
2036 /* Select video2 if only 1 overlay is controlled by V4L2 */
2037 if (pdev
->num_resources
== 1)
2038 vout
->vid_info
.overlays
[0] = vid_dev
->overlays
[k
+ 2];
2040 /* Else select video1 and video2 one by one. */
2041 vout
->vid_info
.overlays
[0] = vid_dev
->overlays
[k
+ 1];
2042 vout
->vid_info
.num_overlays
= 1;
2043 vout
->vid_info
.id
= k
+ 1;
2045 /* Set VRFB as rotation_type for omap2 and omap3 */
2046 if (cpu_is_omap24xx() || cpu_is_omap34xx())
2047 vout
->vid_info
.rotation_type
= VOUT_ROT_VRFB
;
2049 /* Setup the default configuration for the video devices
2051 if (omap_vout_setup_video_data(vout
) != 0) {
2056 /* Allocate default number of buffers for the video streaming
2057 * and reserve the VRFB space for rotation
2059 if (omap_vout_setup_video_bufs(pdev
, k
) != 0) {
2064 /* Register the Video device with V4L2
2067 if (video_register_device(vfd
, VFL_TYPE_GRABBER
, -1) < 0) {
2068 dev_err(&pdev
->dev
, ": Could not register "
2069 "Video for Linux device\n");
2074 video_set_drvdata(vfd
, vout
);
2076 /* Configure the overlay structure */
2077 ret
= omapvid_init(vid_dev
->vouts
[k
], 0);
2082 if (vout
->vid_info
.rotation_type
== VOUT_ROT_VRFB
)
2083 omap_vout_release_vrfb(vout
);
2084 omap_vout_free_buffers(vout
);
2086 video_device_release(vfd
);
2092 dev_info(&pdev
->dev
, ": registered and initialized"
2093 " video device %d\n", vfd
->minor
);
2094 if (k
== (pdev
->num_resources
- 1))
2100 /* Driver functions */
2101 static void omap_vout_cleanup_device(struct omap_vout_device
*vout
)
2103 struct video_device
*vfd
;
2104 struct omapvideo_info
*ovid
;
2110 ovid
= &vout
->vid_info
;
2112 if (!video_is_registered(vfd
)) {
2114 * The device was never registered, so release the
2115 * video_device struct directly.
2117 video_device_release(vfd
);
2120 * The unregister function will release the video_device
2121 * struct as well as unregistering it.
2123 video_unregister_device(vfd
);
2126 if (ovid
->rotation_type
== VOUT_ROT_VRFB
) {
2127 omap_vout_release_vrfb(vout
);
2128 /* Free the VRFB buffer if allocated
2131 if (vout
->vrfb_static_allocation
)
2132 omap_vout_free_vrfb_buffers(vout
);
2134 omap_vout_free_buffers(vout
);
2139 static int omap_vout_remove(struct platform_device
*pdev
)
2142 struct v4l2_device
*v4l2_dev
= platform_get_drvdata(pdev
);
2143 struct omap2video_device
*vid_dev
= container_of(v4l2_dev
, struct
2144 omap2video_device
, v4l2_dev
);
2146 v4l2_device_unregister(v4l2_dev
);
2147 for (k
= 0; k
< pdev
->num_resources
; k
++)
2148 omap_vout_cleanup_device(vid_dev
->vouts
[k
]);
2150 for (k
= 0; k
< vid_dev
->num_displays
; k
++) {
2151 if (vid_dev
->displays
[k
]->state
!= OMAP_DSS_DISPLAY_DISABLED
)
2152 vid_dev
->displays
[k
]->driver
->disable(vid_dev
->displays
[k
]);
2154 omap_dss_put_device(vid_dev
->displays
[k
]);
2160 static int __init
omap_vout_probe(struct platform_device
*pdev
)
2163 struct omap_overlay
*ovl
;
2164 struct omap_dss_device
*dssdev
= NULL
;
2165 struct omap_dss_device
*def_display
;
2166 struct omap2video_device
*vid_dev
= NULL
;
2168 if (pdev
->num_resources
== 0) {
2169 dev_err(&pdev
->dev
, "probed for an unknown device\n");
2173 vid_dev
= kzalloc(sizeof(struct omap2video_device
), GFP_KERNEL
);
2174 if (vid_dev
== NULL
)
2177 vid_dev
->num_displays
= 0;
2178 for_each_dss_dev(dssdev
) {
2179 omap_dss_get_device(dssdev
);
2181 if (!dssdev
->driver
) {
2182 dev_warn(&pdev
->dev
, "no driver for display: %s\n",
2184 omap_dss_put_device(dssdev
);
2188 vid_dev
->displays
[vid_dev
->num_displays
++] = dssdev
;
2191 if (vid_dev
->num_displays
== 0) {
2192 dev_err(&pdev
->dev
, "no displays\n");
2197 vid_dev
->num_overlays
= omap_dss_get_num_overlays();
2198 for (i
= 0; i
< vid_dev
->num_overlays
; i
++)
2199 vid_dev
->overlays
[i
] = omap_dss_get_overlay(i
);
2201 vid_dev
->num_managers
= omap_dss_get_num_overlay_managers();
2202 for (i
= 0; i
< vid_dev
->num_managers
; i
++)
2203 vid_dev
->managers
[i
] = omap_dss_get_overlay_manager(i
);
2205 /* Get the Video1 overlay and video2 overlay.
2206 * Setup the Display attached to that overlays
2208 for (i
= 1; i
< vid_dev
->num_overlays
; i
++) {
2209 ovl
= omap_dss_get_overlay(i
);
2210 if (ovl
->manager
&& ovl
->manager
->device
) {
2211 def_display
= ovl
->manager
->device
;
2213 dev_warn(&pdev
->dev
, "cannot find display\n");
2217 struct omap_dss_driver
*dssdrv
= def_display
->driver
;
2219 ret
= dssdrv
->enable(def_display
);
2221 /* Here we are not considering a error
2222 * as display may be enabled by frame
2225 dev_warn(&pdev
->dev
,
2226 "'%s' Display already enabled\n",
2232 if (v4l2_device_register(&pdev
->dev
, &vid_dev
->v4l2_dev
) < 0) {
2233 dev_err(&pdev
->dev
, "v4l2_device_register failed\n");
2238 ret
= omap_vout_create_video_devices(pdev
);
2242 for (i
= 0; i
< vid_dev
->num_displays
; i
++) {
2243 struct omap_dss_device
*display
= vid_dev
->displays
[i
];
2245 if (display
->driver
->update
)
2246 display
->driver
->update(display
, 0, 0,
2247 display
->panel
.timings
.x_res
,
2248 display
->panel
.timings
.y_res
);
2253 v4l2_device_unregister(&vid_dev
->v4l2_dev
);
2255 for (i
= 1; i
< vid_dev
->num_overlays
; i
++) {
2257 ovl
= omap_dss_get_overlay(i
);
2258 if (ovl
->manager
&& ovl
->manager
->device
)
2259 def_display
= ovl
->manager
->device
;
2261 if (def_display
&& def_display
->driver
)
2262 def_display
->driver
->disable(def_display
);
2269 static struct platform_driver omap_vout_driver
= {
2273 .remove
= omap_vout_remove
,
2276 static int __init
omap_vout_init(void)
2278 if (platform_driver_probe(&omap_vout_driver
, omap_vout_probe
) != 0) {
2279 printk(KERN_ERR VOUT_NAME
":Could not register Video driver\n");
2285 static void omap_vout_cleanup(void)
2287 platform_driver_unregister(&omap_vout_driver
);
2290 late_initcall(omap_vout_init
);
2291 module_exit(omap_vout_cleanup
);