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 struct omap_dss_device *dssdev;
460 ovl = ovid->overlays[i];
461 dssdev = ovl->get_device(ovl);
466 timing = &dssdev->panel.timings;
469 outh = win->w.height;
470 switch (vout->rotation) {
471 case dss_rotation_90_degree:
472 /* Invert the height and width for 90
473 * and 270 degree rotation
478 posy = (timing->y_res - win->w.width) - win->w.left;
482 case dss_rotation_180_degree:
483 posx = (timing->x_res - win->w.width) - win->w.left;
484 posy = (timing->y_res - win->w.height) - win->w.top;
487 case dss_rotation_270_degree:
492 posx = (timing->x_res - win->w.height) - win->w.top;
501 ret = omapvid_setup_overlay(vout, ovl, posx, posy,
504 goto omapvid_init_err;
509 v4l2_warn(&vout->vid_dev->v4l2_dev, "apply_changes failed\n");
514 * Apply the changes set the go bit of DSS
516 static int omapvid_apply_changes(struct omap_vout_device *vout)
519 struct omap_overlay *ovl;
520 struct omapvideo_info *ovid = &vout->vid_info;
522 for (i = 0; i < ovid->num_overlays; i++) {
523 struct omap_dss_device *dssdev;
525 ovl = ovid->overlays[i];
526 dssdev = ovl->get_device(ovl);
529 ovl->manager->apply(ovl->manager);
535 static int omapvid_handle_interlace_display(struct omap_vout_device *vout,
536 unsigned int irqstatus, struct timeval timevalue)
540 if (vout->first_int) {
545 if (irqstatus & DISPC_IRQ_EVSYNC_ODD)
547 else if (irqstatus & DISPC_IRQ_EVSYNC_EVEN)
553 if (fid != vout->field_id) {
555 vout->field_id = fid;
556 } else if (0 == fid) {
557 if (vout->cur_frm == vout->next_frm)
560 vout->cur_frm->ts = timevalue;
561 vout->cur_frm->state = VIDEOBUF_DONE;
562 wake_up_interruptible(&vout->cur_frm->done);
563 vout->cur_frm = vout->next_frm;
565 if (list_empty(&vout->dma_queue) ||
566 (vout->cur_frm != vout->next_frm))
570 return vout->field_id;
575 static void omap_vout_isr(void *arg, unsigned int irqstatus)
577 int ret, fid, mgr_id;
579 struct omap_overlay *ovl;
580 struct timeval timevalue;
581 struct omapvideo_info *ovid;
582 struct omap_dss_device *cur_display;
583 struct omap_vout_device *vout = (struct omap_vout_device *)arg;
585 if (!vout->streaming)
588 ovid = &vout->vid_info;
589 ovl = ovid->overlays[0];
591 mgr_id = ovl->manager->id;
593 /* get the display device attached to the overlay */
594 cur_display = ovl->get_device(ovl);
599 spin_lock(&vout->vbq_lock);
600 do_gettimeofday(&timevalue);
602 switch (cur_display->type) {
603 case OMAP_DISPLAY_TYPE_DSI:
604 case OMAP_DISPLAY_TYPE_DPI:
605 if (mgr_id == OMAP_DSS_CHANNEL_LCD)
606 irq = DISPC_IRQ_VSYNC;
607 else if (mgr_id == OMAP_DSS_CHANNEL_LCD2)
608 irq = DISPC_IRQ_VSYNC2;
612 if (!(irqstatus & irq))
615 case OMAP_DISPLAY_TYPE_VENC:
616 fid = omapvid_handle_interlace_display(vout, irqstatus,
621 case OMAP_DISPLAY_TYPE_HDMI:
622 if (!(irqstatus & DISPC_IRQ_EVSYNC_EVEN))
629 if (!vout->first_int && (vout->cur_frm != vout->next_frm)) {
630 vout->cur_frm->ts = timevalue;
631 vout->cur_frm->state = VIDEOBUF_DONE;
632 wake_up_interruptible(&vout->cur_frm->done);
633 vout->cur_frm = vout->next_frm;
637 if (list_empty(&vout->dma_queue))
640 vout->next_frm = list_entry(vout->dma_queue.next,
641 struct videobuf_buffer, queue);
642 list_del(&vout->next_frm->queue);
644 vout->next_frm->state = VIDEOBUF_ACTIVE;
646 addr = (unsigned long) vout->queued_buf_addr[vout->next_frm->i]
647 + vout->cropped_offset;
649 /* First save the configuration in ovelray structure */
650 ret = omapvid_init(vout, addr);
652 printk(KERN_ERR VOUT_NAME
653 "failed to set overlay info\n");
654 /* Enable the pipeline and set the Go bit */
655 ret = omapvid_apply_changes(vout);
657 printk(KERN_ERR VOUT_NAME "failed to change mode\n");
660 spin_unlock(&vout->vbq_lock);
663 /* Video buffer call backs */
666 * Buffer setup function is called by videobuf layer when REQBUF ioctl is
667 * called. This is used to setup buffers and return size and count of
668 * buffers allocated. After the call to this buffer, videobuf layer will
669 * setup buffer queue depending on the size and count of buffers
671 static int omap_vout_buffer_setup(struct videobuf_queue *q, unsigned int *count,
674 int startindex = 0, i, j;
675 u32 phy_addr = 0, virt_addr = 0;
676 struct omap_vout_device *vout = q->priv_data;
677 struct omapvideo_info *ovid = &vout->vid_info;
678 int vid_max_buf_size;
683 vid_max_buf_size = vout->vid == OMAP_VIDEO1 ? video1_bufsize :
686 if (V4L2_BUF_TYPE_VIDEO_OUTPUT != q->type)
689 startindex = (vout->vid == OMAP_VIDEO1) ?
690 video1_numbuffers : video2_numbuffers;
691 if (V4L2_MEMORY_MMAP == vout->memory && *count < startindex)
694 if (ovid->rotation_type == VOUT_ROT_VRFB) {
695 if (omap_vout_vrfb_buffer_setup(vout, count, startindex))
699 if (V4L2_MEMORY_MMAP != vout->memory)
702 /* Now allocated the V4L2 buffers */
703 *size = PAGE_ALIGN(vout->pix.width * vout->pix.height * vout->bpp);
704 startindex = (vout->vid == OMAP_VIDEO1) ?
705 video1_numbuffers : video2_numbuffers;
707 /* Check the size of the buffer */
708 if (*size > vid_max_buf_size) {
709 v4l2_err(&vout->vid_dev->v4l2_dev,
710 "buffer allocation mismatch [%u] [%u]\n",
711 *size, vout->buffer_size);
715 for (i = startindex; i < *count; i++) {
716 vout->buffer_size = *size;
718 virt_addr = omap_vout_alloc_buffer(vout->buffer_size,
721 if (ovid->rotation_type == VOUT_ROT_NONE) {
724 if (!is_rotation_enabled(vout))
726 /* Free the VRFB buffers if no space for V4L2 buffers */
727 for (j = i; j < *count; j++) {
728 omap_vout_free_buffer(
729 vout->smsshado_virt_addr[j],
730 vout->smsshado_size);
731 vout->smsshado_virt_addr[j] = 0;
732 vout->smsshado_phy_addr[j] = 0;
736 vout->buf_virt_addr[i] = virt_addr;
737 vout->buf_phy_addr[i] = phy_addr;
739 *count = vout->buffer_allocated = i;
745 * Free the V4L2 buffers additionally allocated than default
748 static void omap_vout_free_extra_buffers(struct omap_vout_device *vout)
750 int num_buffers = 0, i;
752 num_buffers = (vout->vid == OMAP_VIDEO1) ?
753 video1_numbuffers : video2_numbuffers;
755 for (i = num_buffers; i < vout->buffer_allocated; i++) {
756 if (vout->buf_virt_addr[i])
757 omap_vout_free_buffer(vout->buf_virt_addr[i],
760 vout->buf_virt_addr[i] = 0;
761 vout->buf_phy_addr[i] = 0;
763 vout->buffer_allocated = num_buffers;
767 * This function will be called when VIDIOC_QBUF ioctl is called.
768 * It prepare buffers before give out for the display. This function
769 * converts user space virtual address into physical address if userptr memory
770 * exchange mechanism is used. If rotation is enabled, it copies entire
771 * buffer into VRFB memory space before giving it to the DSS.
773 static int omap_vout_buffer_prepare(struct videobuf_queue *q,
774 struct videobuf_buffer *vb,
775 enum v4l2_field field)
777 struct omap_vout_device *vout = q->priv_data;
778 struct omapvideo_info *ovid = &vout->vid_info;
780 if (VIDEOBUF_NEEDS_INIT == vb->state) {
781 vb->width = vout->pix.width;
782 vb->height = vout->pix.height;
783 vb->size = vb->width * vb->height * vout->bpp;
786 vb->state = VIDEOBUF_PREPARED;
787 /* if user pointer memory mechanism is used, get the physical
788 * address of the buffer
790 if (V4L2_MEMORY_USERPTR == vb->memory) {
793 /* Physical address */
794 vout->queued_buf_addr[vb->i] = (u8 *)
795 omap_vout_uservirt_to_phys(vb->baddr);
800 addr = (unsigned long) vout->buf_virt_addr[vb->i];
801 size = (unsigned long) vb->size;
803 dma_addr = dma_map_single(vout->vid_dev->v4l2_dev.dev, (void *) addr,
804 size, DMA_TO_DEVICE);
805 if (dma_mapping_error(vout->vid_dev->v4l2_dev.dev, dma_addr))
806 v4l2_err(&vout->vid_dev->v4l2_dev, "dma_map_single failed\n");
808 vout->queued_buf_addr[vb->i] = (u8 *)vout->buf_phy_addr[vb->i];
811 if (ovid->rotation_type == VOUT_ROT_VRFB)
812 return omap_vout_prepare_vrfb(vout, vb);
818 * Buffer queue function will be called from the videobuf layer when _QBUF
819 * ioctl is called. It is used to enqueue buffer, which is ready to be
822 static void omap_vout_buffer_queue(struct videobuf_queue *q,
823 struct videobuf_buffer *vb)
825 struct omap_vout_device *vout = q->priv_data;
827 /* Driver is also maintainig a queue. So enqueue buffer in the driver
829 list_add_tail(&vb->queue, &vout->dma_queue);
831 vb->state = VIDEOBUF_QUEUED;
835 * Buffer release function is called from videobuf layer to release buffer
836 * which are already allocated
838 static void omap_vout_buffer_release(struct videobuf_queue *q,
839 struct videobuf_buffer *vb)
841 struct omap_vout_device *vout = q->priv_data;
843 vb->state = VIDEOBUF_NEEDS_INIT;
845 if (V4L2_MEMORY_MMAP != vout->memory)
852 static unsigned int omap_vout_poll(struct file *file,
853 struct poll_table_struct *wait)
855 struct omap_vout_device *vout = file->private_data;
856 struct videobuf_queue *q = &vout->vbq;
858 return videobuf_poll_stream(file, q, wait);
861 static void omap_vout_vm_open(struct vm_area_struct *vma)
863 struct omap_vout_device *vout = vma->vm_private_data;
865 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
866 "vm_open [vma=%08lx-%08lx]\n", vma->vm_start, vma->vm_end);
870 static void omap_vout_vm_close(struct vm_area_struct *vma)
872 struct omap_vout_device *vout = vma->vm_private_data;
874 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
875 "vm_close [vma=%08lx-%08lx]\n", vma->vm_start, vma->vm_end);
879 static struct vm_operations_struct omap_vout_vm_ops = {
880 .open = omap_vout_vm_open,
881 .close = omap_vout_vm_close,
884 static int omap_vout_mmap(struct file *file, struct vm_area_struct *vma)
888 unsigned long start = vma->vm_start;
889 unsigned long size = (vma->vm_end - vma->vm_start);
890 struct omap_vout_device *vout = file->private_data;
891 struct videobuf_queue *q = &vout->vbq;
893 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
894 " %s pgoff=0x%lx, start=0x%lx, end=0x%lx\n", __func__,
895 vma->vm_pgoff, vma->vm_start, vma->vm_end);
897 /* look for the buffer to map */
898 for (i = 0; i < VIDEO_MAX_FRAME; i++) {
899 if (NULL == q->bufs[i])
901 if (V4L2_MEMORY_MMAP != q->bufs[i]->memory)
903 if (q->bufs[i]->boff == (vma->vm_pgoff << PAGE_SHIFT))
907 if (VIDEO_MAX_FRAME == i) {
908 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
909 "offset invalid [offset=0x%lx]\n",
910 (vma->vm_pgoff << PAGE_SHIFT));
913 /* Check the size of the buffer */
914 if (size > vout->buffer_size) {
915 v4l2_err(&vout->vid_dev->v4l2_dev,
916 "insufficient memory [%lu] [%u]\n",
917 size, vout->buffer_size);
921 q->bufs[i]->baddr = vma->vm_start;
923 vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
924 vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
925 vma->vm_ops = &omap_vout_vm_ops;
926 vma->vm_private_data = (void *) vout;
927 pos = (void *)vout->buf_virt_addr[i];
928 vma->vm_pgoff = virt_to_phys((void *)pos) >> PAGE_SHIFT;
931 pfn = virt_to_phys((void *) pos) >> PAGE_SHIFT;
932 if (remap_pfn_range(vma, start, pfn, PAGE_SIZE, PAGE_SHARED))
939 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Exiting %s\n", __func__);
944 static int omap_vout_release(struct file *file)
947 struct videobuf_queue *q;
948 struct omapvideo_info *ovid;
949 struct omap_vout_device *vout = file->private_data;
951 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Entering %s\n", __func__);
952 ovid = &vout->vid_info;
958 /* Disable all the overlay managers connected with this interface */
959 for (i = 0; i < ovid->num_overlays; i++) {
960 struct omap_overlay *ovl = ovid->overlays[i];
961 struct omap_dss_device *dssdev = ovl->get_device(ovl);
966 /* Turn off the pipeline */
967 ret = omapvid_apply_changes(vout);
969 v4l2_warn(&vout->vid_dev->v4l2_dev,
970 "Unable to apply changes\n");
972 /* Free all buffers */
973 omap_vout_free_extra_buffers(vout);
975 /* Free the VRFB buffers only if they are allocated
976 * during reqbufs. Don't free if init time allocated
978 if (ovid->rotation_type == VOUT_ROT_VRFB) {
979 if (!vout->vrfb_static_allocation)
980 omap_vout_free_vrfb_buffers(vout);
982 videobuf_mmap_free(q);
984 /* Even if apply changes fails we should continue
985 freeing allocated memory */
986 if (vout->streaming) {
989 mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN |
990 DISPC_IRQ_EVSYNC_ODD | DISPC_IRQ_VSYNC2;
991 omap_dispc_unregister_isr(omap_vout_isr, vout, mask);
994 videobuf_streamoff(q);
995 videobuf_queue_cancel(q);
998 if (vout->mmap_count != 0)
999 vout->mmap_count = 0;
1002 file->private_data = NULL;
1004 if (vout->buffer_allocated)
1005 videobuf_mmap_free(q);
1007 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Exiting %s\n", __func__);
1011 static int omap_vout_open(struct file *file)
1013 struct videobuf_queue *q;
1014 struct omap_vout_device *vout = NULL;
1016 vout = video_drvdata(file);
1017 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Entering %s\n", __func__);
1022 /* for now, we only support single open */
1028 file->private_data = vout;
1029 vout->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
1032 video_vbq_ops.buf_setup = omap_vout_buffer_setup;
1033 video_vbq_ops.buf_prepare = omap_vout_buffer_prepare;
1034 video_vbq_ops.buf_release = omap_vout_buffer_release;
1035 video_vbq_ops.buf_queue = omap_vout_buffer_queue;
1036 spin_lock_init(&vout->vbq_lock);
1038 videobuf_queue_dma_contig_init(q, &video_vbq_ops, q->dev,
1039 &vout->vbq_lock, vout->type, V4L2_FIELD_NONE,
1040 sizeof(struct videobuf_buffer), vout, NULL);
1042 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Exiting %s\n", __func__);
1049 static int vidioc_querycap(struct file *file, void *fh,
1050 struct v4l2_capability *cap)
1052 struct omap_vout_device *vout = fh;
1054 strlcpy(cap->driver, VOUT_NAME, sizeof(cap->driver));
1055 strlcpy(cap->card, vout->vfd->name, sizeof(cap->card));
1056 cap->bus_info[0] = '\0';
1057 cap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_OUTPUT |
1058 V4L2_CAP_VIDEO_OUTPUT_OVERLAY;
1063 static int vidioc_enum_fmt_vid_out(struct file *file, void *fh,
1064 struct v4l2_fmtdesc *fmt)
1066 int index = fmt->index;
1068 if (index >= NUM_OUTPUT_FORMATS)
1071 fmt->flags = omap_formats[index].flags;
1072 strlcpy(fmt->description, omap_formats[index].description,
1073 sizeof(fmt->description));
1074 fmt->pixelformat = omap_formats[index].pixelformat;
1079 static int vidioc_g_fmt_vid_out(struct file *file, void *fh,
1080 struct v4l2_format *f)
1082 struct omap_vout_device *vout = fh;
1084 f->fmt.pix = vout->pix;
1089 static int vidioc_try_fmt_vid_out(struct file *file, void *fh,
1090 struct v4l2_format *f)
1092 struct omap_overlay *ovl;
1093 struct omapvideo_info *ovid;
1094 struct omap_video_timings *timing;
1095 struct omap_vout_device *vout = fh;
1096 struct omap_dss_device *dssdev;
1098 ovid = &vout->vid_info;
1099 ovl = ovid->overlays[0];
1100 /* get the display device attached to the overlay */
1101 dssdev = ovl->get_device(ovl);
1106 timing = &dssdev->panel.timings;
1108 vout->fbuf.fmt.height = timing->y_res;
1109 vout->fbuf.fmt.width = timing->x_res;
1111 omap_vout_try_format(&f->fmt.pix);
1115 static int vidioc_s_fmt_vid_out(struct file *file, void *fh,
1116 struct v4l2_format *f)
1119 struct omap_overlay *ovl;
1120 struct omapvideo_info *ovid;
1121 struct omap_video_timings *timing;
1122 struct omap_vout_device *vout = fh;
1123 struct omap_dss_device *dssdev;
1125 if (vout->streaming)
1128 mutex_lock(&vout->lock);
1130 ovid = &vout->vid_info;
1131 ovl = ovid->overlays[0];
1132 dssdev = ovl->get_device(ovl);
1134 /* get the display device attached to the overlay */
1137 goto s_fmt_vid_out_exit;
1139 timing = &dssdev->panel.timings;
1141 /* We dont support RGB24-packed mode if vrfb rotation
1143 if ((is_rotation_enabled(vout)) &&
1144 f->fmt.pix.pixelformat == V4L2_PIX_FMT_RGB24) {
1146 goto s_fmt_vid_out_exit;
1149 /* get the framebuffer parameters */
1151 if (is_rotation_90_or_270(vout)) {
1152 vout->fbuf.fmt.height = timing->x_res;
1153 vout->fbuf.fmt.width = timing->y_res;
1155 vout->fbuf.fmt.height = timing->y_res;
1156 vout->fbuf.fmt.width = timing->x_res;
1159 /* change to samller size is OK */
1161 bpp = omap_vout_try_format(&f->fmt.pix);
1162 f->fmt.pix.sizeimage = f->fmt.pix.width * f->fmt.pix.height * bpp;
1164 /* try & set the new output format */
1166 vout->pix = f->fmt.pix;
1169 /* If YUYV then vrfb bpp is 2, for others its 1 */
1170 if (V4L2_PIX_FMT_YUYV == vout->pix.pixelformat ||
1171 V4L2_PIX_FMT_UYVY == vout->pix.pixelformat)
1174 /* set default crop and win */
1175 omap_vout_new_format(&vout->pix, &vout->fbuf, &vout->crop, &vout->win);
1180 mutex_unlock(&vout->lock);
1184 static int vidioc_try_fmt_vid_overlay(struct file *file, void *fh,
1185 struct v4l2_format *f)
1188 struct omap_vout_device *vout = fh;
1189 struct omap_overlay *ovl;
1190 struct omapvideo_info *ovid;
1191 struct v4l2_window *win = &f->fmt.win;
1193 ovid = &vout->vid_info;
1194 ovl = ovid->overlays[0];
1196 ret = omap_vout_try_window(&vout->fbuf, win);
1199 if ((ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA) == 0)
1200 win->global_alpha = 255;
1202 win->global_alpha = f->fmt.win.global_alpha;
1208 static int vidioc_s_fmt_vid_overlay(struct file *file, void *fh,
1209 struct v4l2_format *f)
1212 struct omap_overlay *ovl;
1213 struct omapvideo_info *ovid;
1214 struct omap_vout_device *vout = fh;
1215 struct v4l2_window *win = &f->fmt.win;
1217 mutex_lock(&vout->lock);
1218 ovid = &vout->vid_info;
1219 ovl = ovid->overlays[0];
1221 ret = omap_vout_new_window(&vout->crop, &vout->win, &vout->fbuf, win);
1223 /* Video1 plane does not support global alpha on OMAP3 */
1224 if ((ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA) == 0)
1225 vout->win.global_alpha = 255;
1227 vout->win.global_alpha = f->fmt.win.global_alpha;
1229 vout->win.chromakey = f->fmt.win.chromakey;
1231 mutex_unlock(&vout->lock);
1235 static int vidioc_enum_fmt_vid_overlay(struct file *file, void *fh,
1236 struct v4l2_fmtdesc *fmt)
1238 int index = fmt->index;
1240 if (index >= NUM_OUTPUT_FORMATS)
1243 fmt->flags = omap_formats[index].flags;
1244 strlcpy(fmt->description, omap_formats[index].description,
1245 sizeof(fmt->description));
1246 fmt->pixelformat = omap_formats[index].pixelformat;
1250 static int vidioc_g_fmt_vid_overlay(struct file *file, void *fh,
1251 struct v4l2_format *f)
1254 struct omap_overlay *ovl;
1255 struct omapvideo_info *ovid;
1256 struct omap_vout_device *vout = fh;
1257 struct omap_overlay_manager_info info;
1258 struct v4l2_window *win = &f->fmt.win;
1260 ovid = &vout->vid_info;
1261 ovl = ovid->overlays[0];
1263 win->w = vout->win.w;
1264 win->field = vout->win.field;
1265 win->global_alpha = vout->win.global_alpha;
1267 if (ovl->manager && ovl->manager->get_manager_info) {
1268 ovl->manager->get_manager_info(ovl->manager, &info);
1269 key_value = info.trans_key;
1271 win->chromakey = key_value;
1275 static int vidioc_cropcap(struct file *file, void *fh,
1276 struct v4l2_cropcap *cropcap)
1278 struct omap_vout_device *vout = fh;
1279 struct v4l2_pix_format *pix = &vout->pix;
1281 if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
1284 /* Width and height are always even */
1285 cropcap->bounds.width = pix->width & ~1;
1286 cropcap->bounds.height = pix->height & ~1;
1288 omap_vout_default_crop(&vout->pix, &vout->fbuf, &cropcap->defrect);
1289 cropcap->pixelaspect.numerator = 1;
1290 cropcap->pixelaspect.denominator = 1;
1294 static int vidioc_g_crop(struct file *file, void *fh, struct v4l2_crop *crop)
1296 struct omap_vout_device *vout = fh;
1298 if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
1300 crop->c = vout->crop;
1304 static int vidioc_s_crop(struct file *file, void *fh, const struct v4l2_crop *crop)
1307 struct omap_vout_device *vout = fh;
1308 struct omapvideo_info *ovid;
1309 struct omap_overlay *ovl;
1310 struct omap_video_timings *timing;
1311 struct omap_dss_device *dssdev;
1313 if (vout->streaming)
1316 mutex_lock(&vout->lock);
1317 ovid = &vout->vid_info;
1318 ovl = ovid->overlays[0];
1319 /* get the display device attached to the overlay */
1320 dssdev = ovl->get_device(ovl);
1327 timing = &dssdev->panel.timings;
1329 if (is_rotation_90_or_270(vout)) {
1330 vout->fbuf.fmt.height = timing->x_res;
1331 vout->fbuf.fmt.width = timing->y_res;
1333 vout->fbuf.fmt.height = timing->y_res;
1334 vout->fbuf.fmt.width = timing->x_res;
1337 if (crop->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
1338 ret = omap_vout_new_crop(&vout->pix, &vout->crop, &vout->win,
1339 &vout->fbuf, &crop->c);
1342 mutex_unlock(&vout->lock);
1346 static int vidioc_queryctrl(struct file *file, void *fh,
1347 struct v4l2_queryctrl *ctrl)
1352 case V4L2_CID_ROTATE:
1353 ret = v4l2_ctrl_query_fill(ctrl, 0, 270, 90, 0);
1355 case V4L2_CID_BG_COLOR:
1356 ret = v4l2_ctrl_query_fill(ctrl, 0, 0xFFFFFF, 1, 0);
1358 case V4L2_CID_VFLIP:
1359 ret = v4l2_ctrl_query_fill(ctrl, 0, 1, 1, 0);
1362 ctrl->name[0] = '\0';
1368 static int vidioc_g_ctrl(struct file *file, void *fh, struct v4l2_control *ctrl)
1371 struct omap_vout_device *vout = fh;
1374 case V4L2_CID_ROTATE:
1375 ctrl->value = vout->control[0].value;
1377 case V4L2_CID_BG_COLOR:
1379 struct omap_overlay_manager_info info;
1380 struct omap_overlay *ovl;
1382 ovl = vout->vid_info.overlays[0];
1383 if (!ovl->manager || !ovl->manager->get_manager_info) {
1388 ovl->manager->get_manager_info(ovl->manager, &info);
1389 ctrl->value = info.default_color;
1392 case V4L2_CID_VFLIP:
1393 ctrl->value = vout->control[2].value;
1401 static int vidioc_s_ctrl(struct file *file, void *fh, struct v4l2_control *a)
1404 struct omap_vout_device *vout = fh;
1407 case V4L2_CID_ROTATE:
1409 struct omapvideo_info *ovid;
1410 int rotation = a->value;
1412 ovid = &vout->vid_info;
1414 mutex_lock(&vout->lock);
1415 if (rotation && ovid->rotation_type == VOUT_ROT_NONE) {
1416 mutex_unlock(&vout->lock);
1421 if (rotation && vout->pix.pixelformat == V4L2_PIX_FMT_RGB24) {
1422 mutex_unlock(&vout->lock);
1427 if (v4l2_rot_to_dss_rot(rotation, &vout->rotation,
1429 mutex_unlock(&vout->lock);
1434 vout->control[0].value = rotation;
1435 mutex_unlock(&vout->lock);
1438 case V4L2_CID_BG_COLOR:
1440 struct omap_overlay *ovl;
1441 unsigned int color = a->value;
1442 struct omap_overlay_manager_info info;
1444 ovl = vout->vid_info.overlays[0];
1446 mutex_lock(&vout->lock);
1447 if (!ovl->manager || !ovl->manager->get_manager_info) {
1448 mutex_unlock(&vout->lock);
1453 ovl->manager->get_manager_info(ovl->manager, &info);
1454 info.default_color = color;
1455 if (ovl->manager->set_manager_info(ovl->manager, &info)) {
1456 mutex_unlock(&vout->lock);
1461 vout->control[1].value = color;
1462 mutex_unlock(&vout->lock);
1465 case V4L2_CID_VFLIP:
1467 struct omap_overlay *ovl;
1468 struct omapvideo_info *ovid;
1469 unsigned int mirror = a->value;
1471 ovid = &vout->vid_info;
1472 ovl = ovid->overlays[0];
1474 mutex_lock(&vout->lock);
1475 if (mirror && ovid->rotation_type == VOUT_ROT_NONE) {
1476 mutex_unlock(&vout->lock);
1481 if (mirror && vout->pix.pixelformat == V4L2_PIX_FMT_RGB24) {
1482 mutex_unlock(&vout->lock);
1486 vout->mirror = mirror;
1487 vout->control[2].value = mirror;
1488 mutex_unlock(&vout->lock);
1497 static int vidioc_reqbufs(struct file *file, void *fh,
1498 struct v4l2_requestbuffers *req)
1501 unsigned int i, num_buffers = 0;
1502 struct omap_vout_device *vout = fh;
1503 struct videobuf_queue *q = &vout->vbq;
1505 if ((req->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) || (req->count < 0))
1507 /* if memory is not mmp or userptr
1509 if ((V4L2_MEMORY_MMAP != req->memory) &&
1510 (V4L2_MEMORY_USERPTR != req->memory))
1513 mutex_lock(&vout->lock);
1514 /* Cannot be requested when streaming is on */
1515 if (vout->streaming) {
1520 /* If buffers are already allocated free them */
1521 if (q->bufs[0] && (V4L2_MEMORY_MMAP == q->bufs[0]->memory)) {
1522 if (vout->mmap_count) {
1526 num_buffers = (vout->vid == OMAP_VIDEO1) ?
1527 video1_numbuffers : video2_numbuffers;
1528 for (i = num_buffers; i < vout->buffer_allocated; i++) {
1529 omap_vout_free_buffer(vout->buf_virt_addr[i],
1531 vout->buf_virt_addr[i] = 0;
1532 vout->buf_phy_addr[i] = 0;
1534 vout->buffer_allocated = num_buffers;
1535 videobuf_mmap_free(q);
1536 } else if (q->bufs[0] && (V4L2_MEMORY_USERPTR == q->bufs[0]->memory)) {
1537 if (vout->buffer_allocated) {
1538 videobuf_mmap_free(q);
1539 for (i = 0; i < vout->buffer_allocated; i++) {
1543 vout->buffer_allocated = 0;
1547 /*store the memory type in data structure */
1548 vout->memory = req->memory;
1550 INIT_LIST_HEAD(&vout->dma_queue);
1552 /* call videobuf_reqbufs api */
1553 ret = videobuf_reqbufs(q, req);
1557 vout->buffer_allocated = req->count;
1560 mutex_unlock(&vout->lock);
1564 static int vidioc_querybuf(struct file *file, void *fh,
1565 struct v4l2_buffer *b)
1567 struct omap_vout_device *vout = fh;
1569 return videobuf_querybuf(&vout->vbq, b);
1572 static int vidioc_qbuf(struct file *file, void *fh,
1573 struct v4l2_buffer *buffer)
1575 struct omap_vout_device *vout = fh;
1576 struct videobuf_queue *q = &vout->vbq;
1578 if ((V4L2_BUF_TYPE_VIDEO_OUTPUT != buffer->type) ||
1579 (buffer->index >= vout->buffer_allocated) ||
1580 (q->bufs[buffer->index]->memory != buffer->memory)) {
1583 if (V4L2_MEMORY_USERPTR == buffer->memory) {
1584 if ((buffer->length < vout->pix.sizeimage) ||
1585 (0 == buffer->m.userptr)) {
1590 if ((is_rotation_enabled(vout)) &&
1591 vout->vrfb_dma_tx.req_status == DMA_CHAN_NOT_ALLOTED) {
1592 v4l2_warn(&vout->vid_dev->v4l2_dev,
1593 "DMA Channel not allocated for Rotation\n");
1597 return videobuf_qbuf(q, buffer);
1600 static int vidioc_dqbuf(struct file *file, void *fh, struct v4l2_buffer *b)
1602 struct omap_vout_device *vout = fh;
1603 struct videobuf_queue *q = &vout->vbq;
1608 struct videobuf_buffer *vb;
1610 vb = q->bufs[b->index];
1612 if (!vout->streaming)
1615 if (file->f_flags & O_NONBLOCK)
1616 /* Call videobuf_dqbuf for non blocking mode */
1617 ret = videobuf_dqbuf(q, (struct v4l2_buffer *)b, 1);
1619 /* Call videobuf_dqbuf for blocking mode */
1620 ret = videobuf_dqbuf(q, (struct v4l2_buffer *)b, 0);
1622 addr = (unsigned long) vout->buf_phy_addr[vb->i];
1623 size = (unsigned long) vb->size;
1624 dma_unmap_single(vout->vid_dev->v4l2_dev.dev, addr,
1625 size, DMA_TO_DEVICE);
1629 static int vidioc_streamon(struct file *file, void *fh, enum v4l2_buf_type i)
1632 u32 addr = 0, mask = 0;
1633 struct omap_vout_device *vout = fh;
1634 struct videobuf_queue *q = &vout->vbq;
1635 struct omapvideo_info *ovid = &vout->vid_info;
1637 mutex_lock(&vout->lock);
1639 if (vout->streaming) {
1644 ret = videobuf_streamon(q);
1648 if (list_empty(&vout->dma_queue)) {
1653 /* Get the next frame from the buffer queue */
1654 vout->next_frm = vout->cur_frm = list_entry(vout->dma_queue.next,
1655 struct videobuf_buffer, queue);
1656 /* Remove buffer from the buffer queue */
1657 list_del(&vout->cur_frm->queue);
1658 /* Mark state of the current frame to active */
1659 vout->cur_frm->state = VIDEOBUF_ACTIVE;
1660 /* Initialize field_id and started member */
1663 /* set flag here. Next QBUF will start DMA */
1664 vout->streaming = 1;
1666 vout->first_int = 1;
1668 if (omap_vout_calculate_offset(vout)) {
1672 addr = (unsigned long) vout->queued_buf_addr[vout->cur_frm->i]
1673 + vout->cropped_offset;
1675 mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD
1678 omap_dispc_register_isr(omap_vout_isr, vout, mask);
1680 /* First save the configuration in ovelray structure */
1681 ret = omapvid_init(vout, addr);
1683 v4l2_err(&vout->vid_dev->v4l2_dev,
1684 "failed to set overlay info\n");
1685 /* Enable the pipeline and set the Go bit */
1686 ret = omapvid_apply_changes(vout);
1688 v4l2_err(&vout->vid_dev->v4l2_dev, "failed to change mode\n");
1690 for (j = 0; j < ovid->num_overlays; j++) {
1691 struct omap_overlay *ovl = ovid->overlays[j];
1692 struct omap_dss_device *dssdev = ovl->get_device(ovl);
1695 ret = ovl->enable(ovl);
1705 ret = videobuf_streamoff(q);
1707 mutex_unlock(&vout->lock);
1711 static int vidioc_streamoff(struct file *file, void *fh, enum v4l2_buf_type i)
1715 struct omap_vout_device *vout = fh;
1716 struct omapvideo_info *ovid = &vout->vid_info;
1718 if (!vout->streaming)
1721 vout->streaming = 0;
1722 mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD
1725 omap_dispc_unregister_isr(omap_vout_isr, vout, mask);
1727 for (j = 0; j < ovid->num_overlays; j++) {
1728 struct omap_overlay *ovl = ovid->overlays[j];
1729 struct omap_dss_device *dssdev = ovl->get_device(ovl);
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_overlay *ovl = vout->vid_info.overlays[0];
1895 struct omap_dss_device *display = ovl->get_device(ovl);
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 dev_info(&pdev->dev, ": registered and initialized"
2077 " video device %d\n", vfd->minor);
2078 if (k == (pdev->num_resources - 1))
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);
2095 /* Driver functions */
2096 static void omap_vout_cleanup_device(struct omap_vout_device *vout)
2098 struct video_device *vfd;
2099 struct omapvideo_info *ovid;
2105 ovid = &vout->vid_info;
2107 if (!video_is_registered(vfd)) {
2109 * The device was never registered, so release the
2110 * video_device struct directly.
2112 video_device_release(vfd);
2115 * The unregister function will release the video_device
2116 * struct as well as unregistering it.
2118 video_unregister_device(vfd);
2121 if (ovid->rotation_type == VOUT_ROT_VRFB) {
2122 omap_vout_release_vrfb(vout);
2123 /* Free the VRFB buffer if allocated
2126 if (vout->vrfb_static_allocation)
2127 omap_vout_free_vrfb_buffers(vout);
2129 omap_vout_free_buffers(vout);
2134 static int omap_vout_remove(struct platform_device *pdev)
2137 struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev);
2138 struct omap2video_device *vid_dev = container_of(v4l2_dev, struct
2139 omap2video_device, v4l2_dev);
2141 v4l2_device_unregister(v4l2_dev);
2142 for (k = 0; k < pdev->num_resources; k++)
2143 omap_vout_cleanup_device(vid_dev->vouts[k]);
2145 for (k = 0; k < vid_dev->num_displays; k++) {
2146 if (vid_dev->displays[k]->state != OMAP_DSS_DISPLAY_DISABLED)
2147 vid_dev->displays[k]->driver->disable(vid_dev->displays[k]);
2149 omap_dss_put_device(vid_dev->displays[k]);
2155 static int __init omap_vout_probe(struct platform_device *pdev)
2158 struct omap_overlay *ovl;
2159 struct omap_dss_device *dssdev = NULL;
2160 struct omap_dss_device *def_display;
2161 struct omap2video_device *vid_dev = NULL;
2163 if (pdev->num_resources == 0) {
2164 dev_err(&pdev->dev, "probed for an unknown device\n");
2168 vid_dev = kzalloc(sizeof(struct omap2video_device), GFP_KERNEL);
2169 if (vid_dev == NULL)
2172 vid_dev->num_displays = 0;
2173 for_each_dss_dev(dssdev) {
2174 omap_dss_get_device(dssdev);
2176 if (!dssdev->driver) {
2177 dev_warn(&pdev->dev, "no driver for display: %s\n",
2179 omap_dss_put_device(dssdev);
2183 vid_dev->displays[vid_dev->num_displays++] = dssdev;
2186 if (vid_dev->num_displays == 0) {
2187 dev_err(&pdev->dev, "no displays\n");
2192 vid_dev->num_overlays = omap_dss_get_num_overlays();
2193 for (i = 0; i < vid_dev->num_overlays; i++)
2194 vid_dev->overlays[i] = omap_dss_get_overlay(i);
2196 vid_dev->num_managers = omap_dss_get_num_overlay_managers();
2197 for (i = 0; i < vid_dev->num_managers; i++)
2198 vid_dev->managers[i] = omap_dss_get_overlay_manager(i);
2200 /* Get the Video1 overlay and video2 overlay.
2201 * Setup the Display attached to that overlays
2203 for (i = 1; i < vid_dev->num_overlays; i++) {
2204 ovl = omap_dss_get_overlay(i);
2205 dssdev = ovl->get_device(ovl);
2208 def_display = dssdev;
2210 dev_warn(&pdev->dev, "cannot find display\n");
2214 struct omap_dss_driver *dssdrv = def_display->driver;
2216 ret = dssdrv->enable(def_display);
2218 /* Here we are not considering a error
2219 * as display may be enabled by frame
2222 dev_warn(&pdev->dev,
2223 "'%s' Display already enabled\n",
2229 if (v4l2_device_register(&pdev->dev, &vid_dev->v4l2_dev) < 0) {
2230 dev_err(&pdev->dev, "v4l2_device_register failed\n");
2235 ret = omap_vout_create_video_devices(pdev);
2239 for (i = 0; i < vid_dev->num_displays; i++) {
2240 struct omap_dss_device *display = vid_dev->displays[i];
2242 if (display->driver->update)
2243 display->driver->update(display, 0, 0,
2244 display->panel.timings.x_res,
2245 display->panel.timings.y_res);
2250 v4l2_device_unregister(&vid_dev->v4l2_dev);
2252 for (i = 1; i < vid_dev->num_overlays; i++) {
2254 ovl = omap_dss_get_overlay(i);
2255 dssdev = ovl->get_device(ovl);
2258 def_display = dssdev;
2260 if (def_display && def_display->driver)
2261 def_display->driver->disable(def_display);
2268 static struct platform_driver omap_vout_driver = {
2272 .remove = omap_vout_remove,
2275 static int __init omap_vout_init(void)
2277 if (platform_driver_probe(&omap_vout_driver, omap_vout_probe) != 0) {
2278 printk(KERN_ERR VOUT_NAME ":Could not register Video driver\n");
2284 static void omap_vout_cleanup(void)
2286 platform_driver_unregister(&omap_vout_driver);
2289 late_initcall(omap_vout_init);
2290 module_exit(omap_vout_cleanup);