/*
|
* omap_vout.c
|
*
|
* Copyright (C) 2005-2010 Texas Instruments.
|
*
|
* This file is licensed under the terms of the GNU General Public License
|
* version 2. This program is licensed "as is" without any warranty of any
|
* kind, whether express or implied.
|
*
|
* Leveraged code from the OMAP2 camera driver
|
* Video-for-Linux (Version 2) camera capture driver for
|
* the OMAP24xx camera controller.
|
*
|
* Author: Andy Lowe (source@mvista.com)
|
*
|
* Copyright (C) 2004 MontaVista Software, Inc.
|
* Copyright (C) 2010 Texas Instruments.
|
*
|
* History:
|
* 20-APR-2006 Khasim Modified VRFB based Rotation,
|
* The image data is always read from 0 degree
|
* view and written
|
* to the virtual space of desired rotation angle
|
* 4-DEC-2006 Jian Changed to support better memory management
|
*
|
* 17-Nov-2008 Hardik Changed driver to use video_ioctl2
|
*
|
* 23-Feb-2010 Vaibhav H Modified to use new DSS2 interface
|
*
|
*/
|
|
#include <linux/init.h>
|
#include <linux/module.h>
|
#include <linux/vmalloc.h>
|
#include <linux/sched.h>
|
#include <linux/types.h>
|
#include <linux/platform_device.h>
|
#include <linux/irq.h>
|
#include <linux/videodev2.h>
|
#include <linux/dma-mapping.h>
|
#include <linux/slab.h>
|
|
#include <media/v4l2-device.h>
|
#include <media/v4l2-ioctl.h>
|
#include <media/v4l2-event.h>
|
|
#include <video/omapvrfb.h>
|
#include <video/omapfb_dss.h>
|
|
#include "omap_voutlib.h"
|
#include "omap_voutdef.h"
|
#include "omap_vout_vrfb.h"
|
|
MODULE_AUTHOR("Texas Instruments");
|
MODULE_DESCRIPTION("OMAP Video for Linux Video out driver");
|
MODULE_LICENSE("GPL");
|
|
/* Driver Configuration macros */
|
#define VOUT_NAME "omap_vout"
|
|
enum omap_vout_channels {
|
OMAP_VIDEO1,
|
OMAP_VIDEO2,
|
};
|
|
/* Variables configurable through module params*/
|
static bool vid1_static_vrfb_alloc;
|
static bool vid2_static_vrfb_alloc;
|
static bool debug;
|
|
/* Module parameters */
|
module_param(vid1_static_vrfb_alloc, bool, S_IRUGO);
|
MODULE_PARM_DESC(vid1_static_vrfb_alloc,
|
"Static allocation of the VRFB buffer for video1 device");
|
|
module_param(vid2_static_vrfb_alloc, bool, S_IRUGO);
|
MODULE_PARM_DESC(vid2_static_vrfb_alloc,
|
"Static allocation of the VRFB buffer for video2 device");
|
|
module_param(debug, bool, S_IRUGO);
|
MODULE_PARM_DESC(debug, "Debug level (0-1)");
|
|
/* list of image formats supported by OMAP2 video pipelines */
|
static const struct v4l2_fmtdesc omap_formats[] = {
|
{
|
/* Note: V4L2 defines RGB565 as:
|
*
|
* Byte 0 Byte 1
|
* g2 g1 g0 r4 r3 r2 r1 r0 b4 b3 b2 b1 b0 g5 g4 g3
|
*
|
* We interpret RGB565 as:
|
*
|
* Byte 0 Byte 1
|
* g2 g1 g0 b4 b3 b2 b1 b0 r4 r3 r2 r1 r0 g5 g4 g3
|
*/
|
.pixelformat = V4L2_PIX_FMT_RGB565,
|
},
|
{
|
/* Note: V4L2 defines RGB32 as: RGB-8-8-8-8 we use
|
* this for RGB24 unpack mode, the last 8 bits are ignored
|
* */
|
.pixelformat = V4L2_PIX_FMT_RGB32,
|
},
|
{
|
/* Note: V4L2 defines RGB24 as: RGB-8-8-8 we use
|
* this for RGB24 packed mode
|
*
|
*/
|
.pixelformat = V4L2_PIX_FMT_RGB24,
|
},
|
{
|
.pixelformat = V4L2_PIX_FMT_YUYV,
|
},
|
{
|
.pixelformat = V4L2_PIX_FMT_UYVY,
|
},
|
};
|
|
#define NUM_OUTPUT_FORMATS (ARRAY_SIZE(omap_formats))
|
|
/*
|
* Try format
|
*/
|
static int omap_vout_try_format(struct v4l2_pix_format *pix)
|
{
|
int ifmt, bpp = 0;
|
|
pix->height = clamp(pix->height, (u32)VID_MIN_HEIGHT,
|
(u32)VID_MAX_HEIGHT);
|
pix->width = clamp(pix->width, (u32)VID_MIN_WIDTH, (u32)VID_MAX_WIDTH);
|
|
for (ifmt = 0; ifmt < NUM_OUTPUT_FORMATS; ifmt++) {
|
if (pix->pixelformat == omap_formats[ifmt].pixelformat)
|
break;
|
}
|
|
if (ifmt == NUM_OUTPUT_FORMATS)
|
ifmt = 0;
|
|
pix->pixelformat = omap_formats[ifmt].pixelformat;
|
pix->field = V4L2_FIELD_NONE;
|
|
switch (pix->pixelformat) {
|
case V4L2_PIX_FMT_YUYV:
|
case V4L2_PIX_FMT_UYVY:
|
default:
|
pix->colorspace = V4L2_COLORSPACE_SRGB;
|
bpp = YUYV_BPP;
|
break;
|
case V4L2_PIX_FMT_RGB565:
|
case V4L2_PIX_FMT_RGB565X:
|
pix->colorspace = V4L2_COLORSPACE_SRGB;
|
bpp = RGB565_BPP;
|
break;
|
case V4L2_PIX_FMT_RGB24:
|
pix->colorspace = V4L2_COLORSPACE_SRGB;
|
bpp = RGB24_BPP;
|
break;
|
case V4L2_PIX_FMT_RGB32:
|
case V4L2_PIX_FMT_BGR32:
|
pix->colorspace = V4L2_COLORSPACE_SRGB;
|
bpp = RGB32_BPP;
|
break;
|
}
|
pix->bytesperline = pix->width * bpp;
|
pix->sizeimage = pix->bytesperline * pix->height;
|
|
return bpp;
|
}
|
|
/*
|
* Convert V4L2 rotation to DSS rotation
|
* V4L2 understand 0, 90, 180, 270.
|
* Convert to 0, 1, 2 and 3 respectively for DSS
|
*/
|
static int v4l2_rot_to_dss_rot(int v4l2_rotation,
|
enum dss_rotation *rotation, bool mirror)
|
{
|
int ret = 0;
|
|
switch (v4l2_rotation) {
|
case 90:
|
*rotation = dss_rotation_90_degree;
|
break;
|
case 180:
|
*rotation = dss_rotation_180_degree;
|
break;
|
case 270:
|
*rotation = dss_rotation_270_degree;
|
break;
|
case 0:
|
*rotation = dss_rotation_0_degree;
|
break;
|
default:
|
ret = -EINVAL;
|
}
|
return ret;
|
}
|
|
static int omap_vout_calculate_offset(struct omap_vout_device *vout)
|
{
|
struct omapvideo_info *ovid;
|
struct v4l2_rect *crop = &vout->crop;
|
struct v4l2_pix_format *pix = &vout->pix;
|
int *cropped_offset = &vout->cropped_offset;
|
int ps = 2, line_length = 0;
|
|
ovid = &vout->vid_info;
|
|
if (ovid->rotation_type == VOUT_ROT_VRFB) {
|
omap_vout_calculate_vrfb_offset(vout);
|
} else {
|
vout->line_length = line_length = pix->width;
|
|
if (V4L2_PIX_FMT_YUYV == pix->pixelformat ||
|
V4L2_PIX_FMT_UYVY == pix->pixelformat)
|
ps = 2;
|
else if (V4L2_PIX_FMT_RGB32 == pix->pixelformat)
|
ps = 4;
|
else if (V4L2_PIX_FMT_RGB24 == pix->pixelformat)
|
ps = 3;
|
|
vout->ps = ps;
|
|
*cropped_offset = (line_length * ps) *
|
crop->top + crop->left * ps;
|
}
|
|
v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "%s Offset:%x\n",
|
__func__, vout->cropped_offset);
|
|
return 0;
|
}
|
|
/*
|
* Convert V4L2 pixel format to DSS pixel format
|
*/
|
static int video_mode_to_dss_mode(struct omap_vout_device *vout)
|
{
|
struct omap_overlay *ovl;
|
struct omapvideo_info *ovid;
|
struct v4l2_pix_format *pix = &vout->pix;
|
enum omap_color_mode mode;
|
|
ovid = &vout->vid_info;
|
ovl = ovid->overlays[0];
|
|
switch (pix->pixelformat) {
|
case V4L2_PIX_FMT_YUYV:
|
mode = OMAP_DSS_COLOR_YUV2;
|
break;
|
case V4L2_PIX_FMT_UYVY:
|
mode = OMAP_DSS_COLOR_UYVY;
|
break;
|
case V4L2_PIX_FMT_RGB565:
|
mode = OMAP_DSS_COLOR_RGB16;
|
break;
|
case V4L2_PIX_FMT_RGB24:
|
mode = OMAP_DSS_COLOR_RGB24P;
|
break;
|
case V4L2_PIX_FMT_RGB32:
|
mode = (ovl->id == OMAP_DSS_VIDEO1) ?
|
OMAP_DSS_COLOR_RGB24U : OMAP_DSS_COLOR_ARGB32;
|
break;
|
case V4L2_PIX_FMT_BGR32:
|
mode = OMAP_DSS_COLOR_RGBX32;
|
break;
|
default:
|
mode = -EINVAL;
|
break;
|
}
|
return mode;
|
}
|
|
/*
|
* Setup the overlay
|
*/
|
static int omapvid_setup_overlay(struct omap_vout_device *vout,
|
struct omap_overlay *ovl, int posx, int posy, int outw,
|
int outh, u32 addr)
|
{
|
int ret = 0;
|
struct omap_overlay_info info;
|
int cropheight, cropwidth, pixwidth;
|
|
if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0 &&
|
(outw != vout->pix.width || outh != vout->pix.height)) {
|
ret = -EINVAL;
|
goto setup_ovl_err;
|
}
|
|
vout->dss_mode = video_mode_to_dss_mode(vout);
|
if (vout->dss_mode == -EINVAL) {
|
ret = -EINVAL;
|
goto setup_ovl_err;
|
}
|
|
/* Setup the input plane parameters according to
|
* rotation value selected.
|
*/
|
if (is_rotation_90_or_270(vout)) {
|
cropheight = vout->crop.width;
|
cropwidth = vout->crop.height;
|
pixwidth = vout->pix.height;
|
} else {
|
cropheight = vout->crop.height;
|
cropwidth = vout->crop.width;
|
pixwidth = vout->pix.width;
|
}
|
|
ovl->get_overlay_info(ovl, &info);
|
info.paddr = addr;
|
info.width = cropwidth;
|
info.height = cropheight;
|
info.color_mode = vout->dss_mode;
|
info.mirror = vout->mirror;
|
info.pos_x = posx;
|
info.pos_y = posy;
|
info.out_width = outw;
|
info.out_height = outh;
|
info.global_alpha = vout->win.global_alpha;
|
if (!is_rotation_enabled(vout)) {
|
info.rotation = 0;
|
info.rotation_type = OMAP_DSS_ROT_DMA;
|
info.screen_width = pixwidth;
|
} else {
|
info.rotation = vout->rotation;
|
info.rotation_type = OMAP_DSS_ROT_VRFB;
|
info.screen_width = 2048;
|
}
|
|
v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
|
"%s enable=%d addr=%pad width=%d\n height=%d color_mode=%d\n"
|
"rotation=%d mirror=%d posx=%d posy=%d out_width = %d \n"
|
"out_height=%d rotation_type=%d screen_width=%d\n", __func__,
|
ovl->is_enabled(ovl), &info.paddr, info.width, info.height,
|
info.color_mode, info.rotation, info.mirror, info.pos_x,
|
info.pos_y, info.out_width, info.out_height, info.rotation_type,
|
info.screen_width);
|
|
ret = ovl->set_overlay_info(ovl, &info);
|
if (ret)
|
goto setup_ovl_err;
|
|
return 0;
|
|
setup_ovl_err:
|
v4l2_warn(&vout->vid_dev->v4l2_dev, "setup_overlay failed\n");
|
return ret;
|
}
|
|
/*
|
* Initialize the overlay structure
|
*/
|
static int omapvid_init(struct omap_vout_device *vout, u32 addr)
|
{
|
int ret = 0, i;
|
struct v4l2_window *win;
|
struct omap_overlay *ovl;
|
int posx, posy, outw, outh;
|
struct omap_video_timings *timing;
|
struct omapvideo_info *ovid = &vout->vid_info;
|
|
win = &vout->win;
|
for (i = 0; i < ovid->num_overlays; i++) {
|
struct omap_dss_device *dssdev;
|
|
ovl = ovid->overlays[i];
|
dssdev = ovl->get_device(ovl);
|
|
if (!dssdev)
|
return -EINVAL;
|
|
timing = &dssdev->panel.timings;
|
|
outw = win->w.width;
|
outh = win->w.height;
|
switch (vout->rotation) {
|
case dss_rotation_90_degree:
|
/* Invert the height and width for 90
|
* and 270 degree rotation
|
*/
|
swap(outw, outh);
|
posy = (timing->y_res - win->w.width) - win->w.left;
|
posx = win->w.top;
|
break;
|
|
case dss_rotation_180_degree:
|
posx = (timing->x_res - win->w.width) - win->w.left;
|
posy = (timing->y_res - win->w.height) - win->w.top;
|
break;
|
|
case dss_rotation_270_degree:
|
swap(outw, outh);
|
posy = win->w.left;
|
posx = (timing->x_res - win->w.height) - win->w.top;
|
break;
|
|
default:
|
posx = win->w.left;
|
posy = win->w.top;
|
break;
|
}
|
|
ret = omapvid_setup_overlay(vout, ovl, posx, posy,
|
outw, outh, addr);
|
if (ret)
|
goto omapvid_init_err;
|
}
|
return 0;
|
|
omapvid_init_err:
|
v4l2_warn(&vout->vid_dev->v4l2_dev, "apply_changes failed\n");
|
return ret;
|
}
|
|
/*
|
* Apply the changes set the go bit of DSS
|
*/
|
static int omapvid_apply_changes(struct omap_vout_device *vout)
|
{
|
int i;
|
struct omap_overlay *ovl;
|
struct omapvideo_info *ovid = &vout->vid_info;
|
|
for (i = 0; i < ovid->num_overlays; i++) {
|
struct omap_dss_device *dssdev;
|
|
ovl = ovid->overlays[i];
|
dssdev = ovl->get_device(ovl);
|
if (!dssdev)
|
return -EINVAL;
|
ovl->manager->apply(ovl->manager);
|
}
|
|
return 0;
|
}
|
|
static int omapvid_handle_interlace_display(struct omap_vout_device *vout,
|
unsigned int irqstatus, u64 ts)
|
{
|
u32 fid;
|
|
if (vout->first_int) {
|
vout->first_int = 0;
|
goto err;
|
}
|
|
if (irqstatus & DISPC_IRQ_EVSYNC_ODD)
|
fid = 1;
|
else if (irqstatus & DISPC_IRQ_EVSYNC_EVEN)
|
fid = 0;
|
else
|
goto err;
|
|
vout->field_id ^= 1;
|
if (fid != vout->field_id) {
|
if (fid == 0)
|
vout->field_id = fid;
|
} else if (0 == fid) {
|
if (vout->cur_frm == vout->next_frm)
|
goto err;
|
|
vout->cur_frm->vbuf.vb2_buf.timestamp = ts;
|
vout->cur_frm->vbuf.sequence = vout->sequence++;
|
vb2_buffer_done(&vout->cur_frm->vbuf.vb2_buf, VB2_BUF_STATE_DONE);
|
vout->cur_frm = vout->next_frm;
|
} else {
|
if (list_empty(&vout->dma_queue) ||
|
(vout->cur_frm != vout->next_frm))
|
goto err;
|
}
|
|
return vout->field_id;
|
err:
|
return 0;
|
}
|
|
static void omap_vout_isr(void *arg, unsigned int irqstatus)
|
{
|
int ret, fid, mgr_id;
|
u32 addr, irq;
|
struct omap_overlay *ovl;
|
u64 ts;
|
struct omapvideo_info *ovid;
|
struct omap_dss_device *cur_display;
|
struct omap_vout_device *vout = (struct omap_vout_device *)arg;
|
|
ovid = &vout->vid_info;
|
ovl = ovid->overlays[0];
|
|
mgr_id = ovl->manager->id;
|
|
/* get the display device attached to the overlay */
|
cur_display = ovl->get_device(ovl);
|
|
if (!cur_display)
|
return;
|
|
spin_lock(&vout->vbq_lock);
|
ts = ktime_get_ns();
|
|
switch (cur_display->type) {
|
case OMAP_DISPLAY_TYPE_DSI:
|
case OMAP_DISPLAY_TYPE_DPI:
|
case OMAP_DISPLAY_TYPE_DVI:
|
if (mgr_id == OMAP_DSS_CHANNEL_LCD)
|
irq = DISPC_IRQ_VSYNC;
|
else if (mgr_id == OMAP_DSS_CHANNEL_LCD2)
|
irq = DISPC_IRQ_VSYNC2;
|
else
|
goto vout_isr_err;
|
|
if (!(irqstatus & irq))
|
goto vout_isr_err;
|
break;
|
case OMAP_DISPLAY_TYPE_VENC:
|
fid = omapvid_handle_interlace_display(vout, irqstatus,
|
ts);
|
if (!fid)
|
goto vout_isr_err;
|
break;
|
case OMAP_DISPLAY_TYPE_HDMI:
|
if (!(irqstatus & DISPC_IRQ_EVSYNC_EVEN))
|
goto vout_isr_err;
|
break;
|
default:
|
goto vout_isr_err;
|
}
|
|
if (!vout->first_int && (vout->cur_frm != vout->next_frm)) {
|
vout->cur_frm->vbuf.vb2_buf.timestamp = ts;
|
vout->cur_frm->vbuf.sequence = vout->sequence++;
|
vb2_buffer_done(&vout->cur_frm->vbuf.vb2_buf, VB2_BUF_STATE_DONE);
|
vout->cur_frm = vout->next_frm;
|
}
|
|
vout->first_int = 0;
|
if (list_empty(&vout->dma_queue))
|
goto vout_isr_err;
|
|
vout->next_frm = list_entry(vout->dma_queue.next,
|
struct omap_vout_buffer, queue);
|
list_del(&vout->next_frm->queue);
|
|
addr = (unsigned long)vout->queued_buf_addr[vout->next_frm->vbuf.vb2_buf.index]
|
+ vout->cropped_offset;
|
|
/* First save the configuration in ovelray structure */
|
ret = omapvid_init(vout, addr);
|
if (ret) {
|
printk(KERN_ERR VOUT_NAME
|
"failed to set overlay info\n");
|
goto vout_isr_err;
|
}
|
|
/* Enable the pipeline and set the Go bit */
|
ret = omapvid_apply_changes(vout);
|
if (ret)
|
printk(KERN_ERR VOUT_NAME "failed to change mode\n");
|
|
vout_isr_err:
|
spin_unlock(&vout->vbq_lock);
|
}
|
|
|
/*
|
* V4L2 ioctls
|
*/
|
static int vidioc_querycap(struct file *file, void *fh,
|
struct v4l2_capability *cap)
|
{
|
struct omap_vout_device *vout = video_drvdata(file);
|
|
strscpy(cap->driver, VOUT_NAME, sizeof(cap->driver));
|
strscpy(cap->card, vout->vfd->name, sizeof(cap->card));
|
snprintf(cap->bus_info, sizeof(cap->bus_info),
|
"platform:%s.%d", VOUT_NAME, vout->vid);
|
return 0;
|
}
|
|
static int vidioc_enum_fmt_vid_out(struct file *file, void *fh,
|
struct v4l2_fmtdesc *fmt)
|
{
|
int index = fmt->index;
|
|
if (index >= NUM_OUTPUT_FORMATS)
|
return -EINVAL;
|
|
fmt->flags = omap_formats[index].flags;
|
fmt->pixelformat = omap_formats[index].pixelformat;
|
|
return 0;
|
}
|
|
static int vidioc_g_fmt_vid_out(struct file *file, void *fh,
|
struct v4l2_format *f)
|
{
|
struct omap_vout_device *vout = video_drvdata(file);
|
|
f->fmt.pix = vout->pix;
|
return 0;
|
|
}
|
|
static int vidioc_try_fmt_vid_out(struct file *file, void *fh,
|
struct v4l2_format *f)
|
{
|
struct omap_overlay *ovl;
|
struct omapvideo_info *ovid;
|
struct omap_video_timings *timing;
|
struct omap_vout_device *vout = video_drvdata(file);
|
struct omap_dss_device *dssdev;
|
|
ovid = &vout->vid_info;
|
ovl = ovid->overlays[0];
|
/* get the display device attached to the overlay */
|
dssdev = ovl->get_device(ovl);
|
|
if (!dssdev)
|
return -EINVAL;
|
|
timing = &dssdev->panel.timings;
|
|
vout->fbuf.fmt.height = timing->y_res;
|
vout->fbuf.fmt.width = timing->x_res;
|
|
omap_vout_try_format(&f->fmt.pix);
|
return 0;
|
}
|
|
static int vidioc_s_fmt_vid_out(struct file *file, void *fh,
|
struct v4l2_format *f)
|
{
|
int ret, bpp;
|
struct omap_overlay *ovl;
|
struct omapvideo_info *ovid;
|
struct omap_video_timings *timing;
|
struct omap_vout_device *vout = video_drvdata(file);
|
struct omap_dss_device *dssdev;
|
|
if (vb2_is_busy(&vout->vq))
|
return -EBUSY;
|
|
ovid = &vout->vid_info;
|
ovl = ovid->overlays[0];
|
dssdev = ovl->get_device(ovl);
|
|
/* get the display device attached to the overlay */
|
if (!dssdev) {
|
ret = -EINVAL;
|
goto s_fmt_vid_out_exit;
|
}
|
timing = &dssdev->panel.timings;
|
|
/* We don't support RGB24-packed mode if vrfb rotation
|
* is enabled*/
|
if ((is_rotation_enabled(vout)) &&
|
f->fmt.pix.pixelformat == V4L2_PIX_FMT_RGB24) {
|
ret = -EINVAL;
|
goto s_fmt_vid_out_exit;
|
}
|
|
/* get the framebuffer parameters */
|
|
if (is_rotation_90_or_270(vout)) {
|
vout->fbuf.fmt.height = timing->x_res;
|
vout->fbuf.fmt.width = timing->y_res;
|
} else {
|
vout->fbuf.fmt.height = timing->y_res;
|
vout->fbuf.fmt.width = timing->x_res;
|
}
|
|
/* change to smaller size is OK */
|
|
bpp = omap_vout_try_format(&f->fmt.pix);
|
f->fmt.pix.sizeimage = f->fmt.pix.width * f->fmt.pix.height * bpp;
|
|
/* try & set the new output format */
|
vout->bpp = bpp;
|
vout->pix = f->fmt.pix;
|
vout->vrfb_bpp = 1;
|
|
/* If YUYV then vrfb bpp is 2, for others its 1 */
|
if (V4L2_PIX_FMT_YUYV == vout->pix.pixelformat ||
|
V4L2_PIX_FMT_UYVY == vout->pix.pixelformat)
|
vout->vrfb_bpp = 2;
|
|
/* set default crop and win */
|
omap_vout_new_format(&vout->pix, &vout->fbuf, &vout->crop, &vout->win);
|
|
ret = 0;
|
|
s_fmt_vid_out_exit:
|
return ret;
|
}
|
|
static int vidioc_try_fmt_vid_overlay(struct file *file, void *fh,
|
struct v4l2_format *f)
|
{
|
int ret = 0;
|
struct omap_vout_device *vout = video_drvdata(file);
|
struct omap_overlay *ovl;
|
struct omapvideo_info *ovid;
|
struct v4l2_window *win = &f->fmt.win;
|
|
ovid = &vout->vid_info;
|
ovl = ovid->overlays[0];
|
|
ret = omap_vout_try_window(&vout->fbuf, win);
|
|
if (!ret && !(ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA))
|
win->global_alpha = 0;
|
|
return ret;
|
}
|
|
static int vidioc_s_fmt_vid_overlay(struct file *file, void *fh,
|
struct v4l2_format *f)
|
{
|
int ret = 0;
|
struct omap_overlay *ovl;
|
struct omapvideo_info *ovid;
|
struct omap_vout_device *vout = video_drvdata(file);
|
struct v4l2_window *win = &f->fmt.win;
|
|
ovid = &vout->vid_info;
|
ovl = ovid->overlays[0];
|
|
ret = omap_vout_new_window(&vout->crop, &vout->win, &vout->fbuf, win);
|
if (!ret) {
|
enum omap_dss_trans_key_type key_type =
|
OMAP_DSS_COLOR_KEY_GFX_DST;
|
int enable;
|
|
/* Video1 plane does not support global alpha on OMAP3 */
|
if (ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA)
|
vout->win.global_alpha = win->global_alpha;
|
else
|
win->global_alpha = 0;
|
if (vout->fbuf.flags & (V4L2_FBUF_FLAG_CHROMAKEY |
|
V4L2_FBUF_FLAG_SRC_CHROMAKEY))
|
enable = 1;
|
else
|
enable = 0;
|
if (vout->fbuf.flags & V4L2_FBUF_FLAG_SRC_CHROMAKEY)
|
key_type = OMAP_DSS_COLOR_KEY_VID_SRC;
|
|
if (ovl->manager && ovl->manager->get_manager_info &&
|
ovl->manager->set_manager_info) {
|
struct omap_overlay_manager_info info;
|
|
ovl->manager->get_manager_info(ovl->manager, &info);
|
info.trans_enabled = enable;
|
info.trans_key_type = key_type;
|
info.trans_key = vout->win.chromakey;
|
|
if (ovl->manager->set_manager_info(ovl->manager, &info))
|
return -EINVAL;
|
}
|
}
|
return ret;
|
}
|
|
static int vidioc_g_fmt_vid_overlay(struct file *file, void *fh,
|
struct v4l2_format *f)
|
{
|
struct omap_overlay *ovl;
|
struct omapvideo_info *ovid;
|
struct omap_vout_device *vout = video_drvdata(file);
|
struct v4l2_window *win = &f->fmt.win;
|
|
ovid = &vout->vid_info;
|
ovl = ovid->overlays[0];
|
|
win->w = vout->win.w;
|
win->field = vout->win.field;
|
win->chromakey = vout->win.chromakey;
|
if (ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA)
|
win->global_alpha = vout->win.global_alpha;
|
else
|
win->global_alpha = 0;
|
win->clips = NULL;
|
win->clipcount = 0;
|
win->bitmap = NULL;
|
return 0;
|
}
|
|
static int vidioc_g_selection(struct file *file, void *fh, struct v4l2_selection *sel)
|
{
|
struct omap_vout_device *vout = video_drvdata(file);
|
struct v4l2_pix_format *pix = &vout->pix;
|
|
if (sel->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
|
return -EINVAL;
|
|
switch (sel->target) {
|
case V4L2_SEL_TGT_CROP:
|
sel->r = vout->crop;
|
break;
|
case V4L2_SEL_TGT_CROP_DEFAULT:
|
omap_vout_default_crop(&vout->pix, &vout->fbuf, &sel->r);
|
break;
|
case V4L2_SEL_TGT_CROP_BOUNDS:
|
/* Width and height are always even */
|
sel->r.width = pix->width & ~1;
|
sel->r.height = pix->height & ~1;
|
break;
|
default:
|
return -EINVAL;
|
}
|
return 0;
|
}
|
|
static int vidioc_s_selection(struct file *file, void *fh, struct v4l2_selection *sel)
|
{
|
int ret = -EINVAL;
|
struct omap_vout_device *vout = video_drvdata(file);
|
struct omapvideo_info *ovid;
|
struct omap_overlay *ovl;
|
struct omap_video_timings *timing;
|
struct omap_dss_device *dssdev;
|
|
if (sel->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
|
return -EINVAL;
|
|
if (sel->target != V4L2_SEL_TGT_CROP)
|
return -EINVAL;
|
|
if (vb2_is_busy(&vout->vq))
|
return -EBUSY;
|
|
ovid = &vout->vid_info;
|
ovl = ovid->overlays[0];
|
/* get the display device attached to the overlay */
|
dssdev = ovl->get_device(ovl);
|
|
if (!dssdev) {
|
ret = -EINVAL;
|
goto s_crop_err;
|
}
|
|
timing = &dssdev->panel.timings;
|
|
if (is_rotation_90_or_270(vout)) {
|
vout->fbuf.fmt.height = timing->x_res;
|
vout->fbuf.fmt.width = timing->y_res;
|
} else {
|
vout->fbuf.fmt.height = timing->y_res;
|
vout->fbuf.fmt.width = timing->x_res;
|
}
|
|
ret = omap_vout_new_crop(&vout->pix, &vout->crop, &vout->win,
|
&vout->fbuf, &sel->r);
|
|
s_crop_err:
|
return ret;
|
}
|
|
static int omap_vout_s_ctrl(struct v4l2_ctrl *ctrl)
|
{
|
struct omap_vout_device *vout =
|
container_of(ctrl->handler, struct omap_vout_device, ctrl_handler);
|
int ret = 0;
|
|
switch (ctrl->id) {
|
case V4L2_CID_ROTATE: {
|
struct omapvideo_info *ovid;
|
int rotation = ctrl->val;
|
|
ovid = &vout->vid_info;
|
|
if (rotation && ovid->rotation_type == VOUT_ROT_NONE) {
|
ret = -ERANGE;
|
break;
|
}
|
|
if (rotation && vout->pix.pixelformat == V4L2_PIX_FMT_RGB24) {
|
ret = -EINVAL;
|
break;
|
}
|
|
if (v4l2_rot_to_dss_rot(rotation, &vout->rotation,
|
vout->mirror)) {
|
ret = -EINVAL;
|
break;
|
}
|
break;
|
}
|
case V4L2_CID_BG_COLOR:
|
{
|
struct omap_overlay *ovl;
|
unsigned int color = ctrl->val;
|
struct omap_overlay_manager_info info;
|
|
ovl = vout->vid_info.overlays[0];
|
|
if (!ovl->manager || !ovl->manager->get_manager_info) {
|
ret = -EINVAL;
|
break;
|
}
|
|
ovl->manager->get_manager_info(ovl->manager, &info);
|
info.default_color = color;
|
if (ovl->manager->set_manager_info(ovl->manager, &info)) {
|
ret = -EINVAL;
|
break;
|
}
|
break;
|
}
|
case V4L2_CID_VFLIP:
|
{
|
struct omapvideo_info *ovid;
|
unsigned int mirror = ctrl->val;
|
|
ovid = &vout->vid_info;
|
|
if (mirror && ovid->rotation_type == VOUT_ROT_NONE) {
|
ret = -ERANGE;
|
break;
|
}
|
|
if (mirror && vout->pix.pixelformat == V4L2_PIX_FMT_RGB24) {
|
ret = -EINVAL;
|
break;
|
}
|
vout->mirror = mirror;
|
break;
|
}
|
default:
|
return -EINVAL;
|
}
|
return ret;
|
}
|
|
static const struct v4l2_ctrl_ops omap_vout_ctrl_ops = {
|
.s_ctrl = omap_vout_s_ctrl,
|
};
|
|
static int omap_vout_vb2_queue_setup(struct vb2_queue *vq,
|
unsigned int *nbufs,
|
unsigned int *num_planes, unsigned int sizes[],
|
struct device *alloc_devs[])
|
{
|
struct omap_vout_device *vout = vb2_get_drv_priv(vq);
|
int size = vout->pix.sizeimage;
|
|
if (is_rotation_enabled(vout) && vq->num_buffers + *nbufs > VRFB_NUM_BUFS) {
|
*nbufs = VRFB_NUM_BUFS - vq->num_buffers;
|
if (*nbufs == 0)
|
return -EINVAL;
|
}
|
|
if (*num_planes)
|
return sizes[0] < size ? -EINVAL : 0;
|
|
*num_planes = 1;
|
sizes[0] = size;
|
return 0;
|
}
|
|
static int omap_vout_vb2_prepare(struct vb2_buffer *vb)
|
{
|
struct omap_vout_device *vout = vb2_get_drv_priv(vb->vb2_queue);
|
struct omapvideo_info *ovid = &vout->vid_info;
|
struct omap_vout_buffer *voutbuf = vb2_to_omap_vout_buffer(vb);
|
dma_addr_t buf_phy_addr = vb2_dma_contig_plane_dma_addr(vb, 0);
|
|
if (vb2_plane_size(vb, 0) < vout->pix.sizeimage) {
|
v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
|
"%s data will not fit into plane (%lu < %u)\n",
|
__func__, vb2_plane_size(vb, 0), vout->pix.sizeimage);
|
return -EINVAL;
|
}
|
|
vb2_set_plane_payload(vb, 0, vout->pix.sizeimage);
|
voutbuf->vbuf.field = V4L2_FIELD_NONE;
|
|
vout->queued_buf_addr[vb->index] = (u8 *)buf_phy_addr;
|
if (ovid->rotation_type == VOUT_ROT_VRFB)
|
return omap_vout_prepare_vrfb(vout, vb);
|
return 0;
|
}
|
|
static void omap_vout_vb2_queue(struct vb2_buffer *vb)
|
{
|
struct omap_vout_device *vout = vb2_get_drv_priv(vb->vb2_queue);
|
struct omap_vout_buffer *voutbuf = vb2_to_omap_vout_buffer(vb);
|
|
list_add_tail(&voutbuf->queue, &vout->dma_queue);
|
}
|
|
static int omap_vout_vb2_start_streaming(struct vb2_queue *vq, unsigned int count)
|
{
|
struct omap_vout_device *vout = vb2_get_drv_priv(vq);
|
struct omapvideo_info *ovid = &vout->vid_info;
|
struct omap_vout_buffer *buf, *tmp;
|
u32 addr = 0, mask = 0;
|
int ret, j;
|
|
/* Get the next frame from the buffer queue */
|
vout->next_frm = vout->cur_frm = list_entry(vout->dma_queue.next,
|
struct omap_vout_buffer, queue);
|
/* Remove buffer from the buffer queue */
|
list_del(&vout->cur_frm->queue);
|
/* Initialize field_id and started member */
|
vout->field_id = 0;
|
vout->first_int = 1;
|
vout->sequence = 0;
|
|
if (omap_vout_calculate_offset(vout)) {
|
ret = -EINVAL;
|
goto out;
|
}
|
if (ovid->rotation_type == VOUT_ROT_VRFB)
|
if (omap_vout_vrfb_buffer_setup(vout, &count, 0)) {
|
ret = -ENOMEM;
|
goto out;
|
}
|
|
addr = (unsigned long)vout->queued_buf_addr[vout->cur_frm->vbuf.vb2_buf.index]
|
+ vout->cropped_offset;
|
|
mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD
|
| DISPC_IRQ_VSYNC2;
|
|
/* First save the configuration in overlay structure */
|
ret = omapvid_init(vout, addr);
|
if (ret) {
|
v4l2_err(&vout->vid_dev->v4l2_dev,
|
"failed to set overlay info\n");
|
goto streamon_err1;
|
}
|
|
omap_dispc_register_isr(omap_vout_isr, vout, mask);
|
|
/* Enable the pipeline and set the Go bit */
|
ret = omapvid_apply_changes(vout);
|
if (ret)
|
v4l2_err(&vout->vid_dev->v4l2_dev, "failed to change mode\n");
|
|
for (j = 0; j < ovid->num_overlays; j++) {
|
struct omap_overlay *ovl = ovid->overlays[j];
|
struct omap_dss_device *dssdev = ovl->get_device(ovl);
|
|
if (dssdev) {
|
ret = ovl->enable(ovl);
|
if (ret)
|
goto streamon_err1;
|
}
|
}
|
return 0;
|
|
streamon_err1:
|
mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD
|
| DISPC_IRQ_VSYNC2;
|
|
omap_dispc_unregister_isr(omap_vout_isr, vout, mask);
|
|
for (j = 0; j < ovid->num_overlays; j++) {
|
struct omap_overlay *ovl = ovid->overlays[j];
|
struct omap_dss_device *dssdev = ovl->get_device(ovl);
|
|
if (dssdev)
|
ovl->disable(ovl);
|
}
|
/* Turn of the pipeline */
|
if (omapvid_apply_changes(vout))
|
v4l2_err(&vout->vid_dev->v4l2_dev,
|
"failed to change mode in streamoff\n");
|
|
out:
|
vb2_buffer_done(&vout->cur_frm->vbuf.vb2_buf, VB2_BUF_STATE_QUEUED);
|
list_for_each_entry_safe(buf, tmp, &vout->dma_queue, queue) {
|
list_del(&buf->queue);
|
vb2_buffer_done(&buf->vbuf.vb2_buf, VB2_BUF_STATE_QUEUED);
|
}
|
return ret;
|
}
|
|
static void omap_vout_vb2_stop_streaming(struct vb2_queue *vq)
|
{
|
struct omap_vout_device *vout = vb2_get_drv_priv(vq);
|
struct omapvideo_info *ovid = &vout->vid_info;
|
struct omap_vout_buffer *buf, *tmp;
|
u32 mask = 0;
|
int j;
|
|
mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD
|
| DISPC_IRQ_VSYNC2;
|
|
omap_dispc_unregister_isr(omap_vout_isr, vout, mask);
|
|
for (j = 0; j < ovid->num_overlays; j++) {
|
struct omap_overlay *ovl = ovid->overlays[j];
|
struct omap_dss_device *dssdev = ovl->get_device(ovl);
|
|
if (dssdev)
|
ovl->disable(ovl);
|
}
|
/* Turn of the pipeline */
|
if (omapvid_apply_changes(vout))
|
v4l2_err(&vout->vid_dev->v4l2_dev,
|
"failed to change mode in streamoff\n");
|
|
if (vout->next_frm != vout->cur_frm)
|
vb2_buffer_done(&vout->next_frm->vbuf.vb2_buf, VB2_BUF_STATE_ERROR);
|
vb2_buffer_done(&vout->cur_frm->vbuf.vb2_buf, VB2_BUF_STATE_ERROR);
|
list_for_each_entry_safe(buf, tmp, &vout->dma_queue, queue) {
|
list_del(&buf->queue);
|
vb2_buffer_done(&buf->vbuf.vb2_buf, VB2_BUF_STATE_ERROR);
|
}
|
}
|
|
static int vidioc_s_fbuf(struct file *file, void *fh,
|
const struct v4l2_framebuffer *a)
|
{
|
int enable = 0;
|
struct omap_overlay *ovl;
|
struct omapvideo_info *ovid;
|
struct omap_vout_device *vout = video_drvdata(file);
|
struct omap_overlay_manager_info info;
|
enum omap_dss_trans_key_type key_type = OMAP_DSS_COLOR_KEY_GFX_DST;
|
|
ovid = &vout->vid_info;
|
ovl = ovid->overlays[0];
|
|
/* OMAP DSS doesn't support Source and Destination color
|
key together */
|
if ((a->flags & V4L2_FBUF_FLAG_SRC_CHROMAKEY) &&
|
(a->flags & V4L2_FBUF_FLAG_CHROMAKEY))
|
return -EINVAL;
|
/* OMAP DSS Doesn't support the Destination color key
|
and alpha blending together */
|
if ((a->flags & V4L2_FBUF_FLAG_CHROMAKEY) &&
|
(a->flags & V4L2_FBUF_FLAG_LOCAL_ALPHA))
|
return -EINVAL;
|
|
if ((a->flags & V4L2_FBUF_FLAG_SRC_CHROMAKEY)) {
|
vout->fbuf.flags |= V4L2_FBUF_FLAG_SRC_CHROMAKEY;
|
key_type = OMAP_DSS_COLOR_KEY_VID_SRC;
|
} else
|
vout->fbuf.flags &= ~V4L2_FBUF_FLAG_SRC_CHROMAKEY;
|
|
if ((a->flags & V4L2_FBUF_FLAG_CHROMAKEY)) {
|
vout->fbuf.flags |= V4L2_FBUF_FLAG_CHROMAKEY;
|
key_type = OMAP_DSS_COLOR_KEY_GFX_DST;
|
} else
|
vout->fbuf.flags &= ~V4L2_FBUF_FLAG_CHROMAKEY;
|
|
if (a->flags & (V4L2_FBUF_FLAG_CHROMAKEY |
|
V4L2_FBUF_FLAG_SRC_CHROMAKEY))
|
enable = 1;
|
else
|
enable = 0;
|
if (ovl->manager && ovl->manager->get_manager_info &&
|
ovl->manager->set_manager_info) {
|
|
ovl->manager->get_manager_info(ovl->manager, &info);
|
info.trans_enabled = enable;
|
info.trans_key_type = key_type;
|
info.trans_key = vout->win.chromakey;
|
|
if (ovl->manager->set_manager_info(ovl->manager, &info))
|
return -EINVAL;
|
}
|
if (a->flags & V4L2_FBUF_FLAG_LOCAL_ALPHA) {
|
vout->fbuf.flags |= V4L2_FBUF_FLAG_LOCAL_ALPHA;
|
enable = 1;
|
} else {
|
vout->fbuf.flags &= ~V4L2_FBUF_FLAG_LOCAL_ALPHA;
|
enable = 0;
|
}
|
if (ovl->manager && ovl->manager->get_manager_info &&
|
ovl->manager->set_manager_info) {
|
ovl->manager->get_manager_info(ovl->manager, &info);
|
/* enable this only if there is no zorder cap */
|
if ((ovl->caps & OMAP_DSS_OVL_CAP_ZORDER) == 0)
|
info.partial_alpha_enabled = enable;
|
if (ovl->manager->set_manager_info(ovl->manager, &info))
|
return -EINVAL;
|
}
|
|
return 0;
|
}
|
|
static int vidioc_g_fbuf(struct file *file, void *fh,
|
struct v4l2_framebuffer *a)
|
{
|
struct omap_overlay *ovl;
|
struct omapvideo_info *ovid;
|
struct omap_vout_device *vout = video_drvdata(file);
|
struct omap_overlay_manager_info info;
|
struct omap_video_timings *timing;
|
struct omap_dss_device *dssdev;
|
|
ovid = &vout->vid_info;
|
ovl = ovid->overlays[0];
|
/* get the display device attached to the overlay */
|
dssdev = ovl->get_device(ovl);
|
|
if (!dssdev)
|
return -EINVAL;
|
|
timing = &dssdev->panel.timings;
|
|
vout->fbuf.fmt.height = timing->y_res;
|
vout->fbuf.fmt.width = timing->x_res;
|
a->fmt.field = V4L2_FIELD_NONE;
|
a->fmt.colorspace = V4L2_COLORSPACE_SRGB;
|
a->fmt.pixelformat = V4L2_PIX_FMT_RGBA32;
|
a->fmt.height = vout->fbuf.fmt.height;
|
a->fmt.width = vout->fbuf.fmt.width;
|
a->fmt.bytesperline = vout->fbuf.fmt.width * 4;
|
a->fmt.sizeimage = a->fmt.height * a->fmt.bytesperline;
|
a->base = vout->fbuf.base;
|
|
a->flags = vout->fbuf.flags;
|
a->capability = vout->fbuf.capability;
|
a->flags &= ~(V4L2_FBUF_FLAG_SRC_CHROMAKEY | V4L2_FBUF_FLAG_CHROMAKEY |
|
V4L2_FBUF_FLAG_LOCAL_ALPHA);
|
|
if (ovl->manager && ovl->manager->get_manager_info) {
|
ovl->manager->get_manager_info(ovl->manager, &info);
|
if (info.trans_key_type == OMAP_DSS_COLOR_KEY_VID_SRC)
|
a->flags |= V4L2_FBUF_FLAG_SRC_CHROMAKEY;
|
if (info.trans_key_type == OMAP_DSS_COLOR_KEY_GFX_DST)
|
a->flags |= V4L2_FBUF_FLAG_CHROMAKEY;
|
if (info.partial_alpha_enabled)
|
a->flags |= V4L2_FBUF_FLAG_LOCAL_ALPHA;
|
}
|
|
return 0;
|
}
|
|
static int vidioc_enum_output(struct file *file, void *priv_fh,
|
struct v4l2_output *out)
|
{
|
if (out->index)
|
return -EINVAL;
|
snprintf(out->name, sizeof(out->name), "Overlay");
|
out->type = V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY;
|
return 0;
|
}
|
|
static int vidioc_g_output(struct file *file, void *priv_fh, unsigned int *i)
|
{
|
*i = 0;
|
return 0;
|
}
|
|
static int vidioc_s_output(struct file *file, void *priv_fh, unsigned int i)
|
{
|
return i ? -EINVAL : 0;
|
}
|
|
static const struct v4l2_ioctl_ops vout_ioctl_ops = {
|
.vidioc_querycap = vidioc_querycap,
|
.vidioc_enum_fmt_vid_out = vidioc_enum_fmt_vid_out,
|
.vidioc_g_fmt_vid_out = vidioc_g_fmt_vid_out,
|
.vidioc_try_fmt_vid_out = vidioc_try_fmt_vid_out,
|
.vidioc_s_fmt_vid_out = vidioc_s_fmt_vid_out,
|
.vidioc_s_fbuf = vidioc_s_fbuf,
|
.vidioc_g_fbuf = vidioc_g_fbuf,
|
.vidioc_try_fmt_vid_out_overlay = vidioc_try_fmt_vid_overlay,
|
.vidioc_s_fmt_vid_out_overlay = vidioc_s_fmt_vid_overlay,
|
.vidioc_g_fmt_vid_out_overlay = vidioc_g_fmt_vid_overlay,
|
.vidioc_g_selection = vidioc_g_selection,
|
.vidioc_s_selection = vidioc_s_selection,
|
.vidioc_enum_output = vidioc_enum_output,
|
.vidioc_g_output = vidioc_g_output,
|
.vidioc_s_output = vidioc_s_output,
|
.vidioc_reqbufs = vb2_ioctl_reqbufs,
|
.vidioc_create_bufs = vb2_ioctl_create_bufs,
|
.vidioc_querybuf = vb2_ioctl_querybuf,
|
.vidioc_qbuf = vb2_ioctl_qbuf,
|
.vidioc_dqbuf = vb2_ioctl_dqbuf,
|
.vidioc_expbuf = vb2_ioctl_expbuf,
|
.vidioc_streamon = vb2_ioctl_streamon,
|
.vidioc_streamoff = vb2_ioctl_streamoff,
|
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
|
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
|
};
|
|
static const struct v4l2_file_operations omap_vout_fops = {
|
.owner = THIS_MODULE,
|
.unlocked_ioctl = video_ioctl2,
|
.poll = vb2_fop_poll,
|
.mmap = vb2_fop_mmap,
|
.open = v4l2_fh_open,
|
.release = vb2_fop_release,
|
};
|
|
static const struct vb2_ops omap_vout_vb2_ops = {
|
.queue_setup = omap_vout_vb2_queue_setup,
|
.buf_queue = omap_vout_vb2_queue,
|
.buf_prepare = omap_vout_vb2_prepare,
|
.start_streaming = omap_vout_vb2_start_streaming,
|
.stop_streaming = omap_vout_vb2_stop_streaming,
|
.wait_prepare = vb2_ops_wait_prepare,
|
.wait_finish = vb2_ops_wait_finish,
|
};
|
|
/* Init functions used during driver initialization */
|
/* Initial setup of video_data */
|
static int __init omap_vout_setup_video_data(struct omap_vout_device *vout)
|
{
|
struct video_device *vfd;
|
struct v4l2_pix_format *pix;
|
struct omap_overlay *ovl = vout->vid_info.overlays[0];
|
struct omap_dss_device *display = ovl->get_device(ovl);
|
struct v4l2_ctrl_handler *hdl;
|
struct vb2_queue *vq;
|
int ret;
|
|
/* set the default pix */
|
pix = &vout->pix;
|
|
/* Set the default picture of QVGA */
|
pix->width = QQVGA_WIDTH;
|
pix->height = QQVGA_HEIGHT;
|
|
/* Default pixel format is RGB 5-6-5 */
|
pix->pixelformat = V4L2_PIX_FMT_RGB565;
|
pix->field = V4L2_FIELD_NONE;
|
pix->bytesperline = pix->width * 2;
|
pix->sizeimage = pix->bytesperline * pix->height;
|
pix->colorspace = V4L2_COLORSPACE_SRGB;
|
|
vout->bpp = RGB565_BPP;
|
vout->fbuf.fmt.width = display->panel.timings.x_res;
|
vout->fbuf.fmt.height = display->panel.timings.y_res;
|
vout->cropped_offset = 0;
|
|
/* Set the data structures for the overlay parameters*/
|
vout->fbuf.flags = V4L2_FBUF_FLAG_OVERLAY;
|
vout->fbuf.capability = V4L2_FBUF_CAP_LOCAL_ALPHA |
|
V4L2_FBUF_CAP_SRC_CHROMAKEY | V4L2_FBUF_CAP_CHROMAKEY |
|
V4L2_FBUF_CAP_EXTERNOVERLAY;
|
if (ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA) {
|
vout->win.global_alpha = 255;
|
vout->fbuf.capability |= V4L2_FBUF_CAP_GLOBAL_ALPHA;
|
vout->fbuf.flags |= V4L2_FBUF_FLAG_GLOBAL_ALPHA;
|
} else {
|
vout->win.global_alpha = 0;
|
}
|
vout->win.field = V4L2_FIELD_NONE;
|
|
omap_vout_new_format(pix, &vout->fbuf, &vout->crop, &vout->win);
|
|
hdl = &vout->ctrl_handler;
|
v4l2_ctrl_handler_init(hdl, 3);
|
if (vout->vid_info.rotation_type == VOUT_ROT_VRFB) {
|
v4l2_ctrl_new_std(hdl, &omap_vout_ctrl_ops,
|
V4L2_CID_ROTATE, 0, 270, 90, 0);
|
v4l2_ctrl_new_std(hdl, &omap_vout_ctrl_ops,
|
V4L2_CID_VFLIP, 0, 1, 1, 0);
|
}
|
v4l2_ctrl_new_std(hdl, &omap_vout_ctrl_ops,
|
V4L2_CID_BG_COLOR, 0, 0xffffff, 1, 0);
|
if (hdl->error)
|
return hdl->error;
|
|
vout->rotation = 0;
|
vout->mirror = false;
|
INIT_LIST_HEAD(&vout->dma_queue);
|
if (vout->vid_info.rotation_type == VOUT_ROT_VRFB)
|
vout->vrfb_bpp = 2;
|
|
/* initialize the video_device struct */
|
vfd = vout->vfd = video_device_alloc();
|
|
if (!vfd) {
|
printk(KERN_ERR VOUT_NAME
|
": could not allocate video device struct\n");
|
v4l2_ctrl_handler_free(hdl);
|
return -ENOMEM;
|
}
|
vfd->ctrl_handler = hdl;
|
vfd->release = video_device_release;
|
vfd->ioctl_ops = &vout_ioctl_ops;
|
|
strscpy(vfd->name, VOUT_NAME, sizeof(vfd->name));
|
|
vfd->fops = &omap_vout_fops;
|
vfd->v4l2_dev = &vout->vid_dev->v4l2_dev;
|
vfd->vfl_dir = VFL_DIR_TX;
|
vfd->minor = -1;
|
vfd->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_OUTPUT |
|
V4L2_CAP_VIDEO_OUTPUT_OVERLAY;
|
mutex_init(&vout->lock);
|
|
vq = &vout->vq;
|
vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
|
vq->io_modes = VB2_MMAP | VB2_DMABUF;
|
vq->drv_priv = vout;
|
vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
|
vq->buf_struct_size = sizeof(struct omap_vout_buffer);
|
vq->dev = vfd->v4l2_dev->dev;
|
|
vq->ops = &omap_vout_vb2_ops;
|
vq->mem_ops = &vb2_dma_contig_memops;
|
vq->lock = &vout->lock;
|
vq->min_buffers_needed = 1;
|
vfd->queue = vq;
|
|
ret = vb2_queue_init(vq);
|
if (ret) {
|
v4l2_ctrl_handler_free(hdl);
|
video_device_release(vfd);
|
}
|
return ret;
|
}
|
|
/* Setup video buffers */
|
static int __init omap_vout_setup_video_bufs(struct platform_device *pdev,
|
int vid_num)
|
{
|
struct omapvideo_info *ovid;
|
struct omap_vout_device *vout;
|
struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev);
|
struct omap2video_device *vid_dev =
|
container_of(v4l2_dev, struct omap2video_device, v4l2_dev);
|
int ret = 0;
|
|
vout = vid_dev->vouts[vid_num];
|
ovid = &vout->vid_info;
|
|
if (ovid->rotation_type == VOUT_ROT_VRFB) {
|
bool static_vrfb_allocation = (vid_num == 0) ?
|
vid1_static_vrfb_alloc : vid2_static_vrfb_alloc;
|
ret = omap_vout_setup_vrfb_bufs(pdev, vid_num,
|
static_vrfb_allocation);
|
}
|
return ret;
|
}
|
|
/* Create video out devices */
|
static int __init omap_vout_create_video_devices(struct platform_device *pdev)
|
{
|
int ret = 0, k;
|
struct omap_vout_device *vout;
|
struct video_device *vfd = NULL;
|
struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev);
|
struct omap2video_device *vid_dev = container_of(v4l2_dev,
|
struct omap2video_device, v4l2_dev);
|
struct omap_overlay *ovl = vid_dev->overlays[0];
|
struct omap_overlay_info info;
|
|
ovl->get_overlay_info(ovl, &info);
|
|
for (k = 0; k < pdev->num_resources; k++) {
|
|
vout = kzalloc(sizeof(struct omap_vout_device), GFP_KERNEL);
|
if (!vout) {
|
dev_err(&pdev->dev, ": could not allocate memory\n");
|
return -ENOMEM;
|
}
|
|
vout->vid = k;
|
vid_dev->vouts[k] = vout;
|
vout->vid_dev = vid_dev;
|
/* Select video2 if only 1 overlay is controlled by V4L2 */
|
if (pdev->num_resources == 1)
|
vout->vid_info.overlays[0] = vid_dev->overlays[k + 2];
|
else
|
/* Else select video1 and video2 one by one. */
|
vout->vid_info.overlays[0] = vid_dev->overlays[k + 1];
|
vout->vid_info.num_overlays = 1;
|
vout->vid_info.id = k + 1;
|
spin_lock_init(&vout->vbq_lock);
|
/*
|
* Set the framebuffer base, this allows applications to find
|
* the fb corresponding to this overlay.
|
*
|
* To be precise: fbuf.base should match smem_start of
|
* struct fb_fix_screeninfo.
|
*/
|
vout->fbuf.base = (void *)info.paddr;
|
|
/* Set VRFB as rotation_type for omap2 and omap3 */
|
if (omap_vout_dss_omap24xx() || omap_vout_dss_omap34xx())
|
vout->vid_info.rotation_type = VOUT_ROT_VRFB;
|
|
/* Setup the default configuration for the video devices
|
*/
|
if (omap_vout_setup_video_data(vout) != 0) {
|
ret = -ENOMEM;
|
goto error;
|
}
|
|
/* Allocate default number of buffers for the video streaming
|
* and reserve the VRFB space for rotation
|
*/
|
if (omap_vout_setup_video_bufs(pdev, k) != 0) {
|
ret = -ENOMEM;
|
goto error1;
|
}
|
|
/* Register the Video device with V4L2
|
*/
|
vfd = vout->vfd;
|
if (video_register_device(vfd, VFL_TYPE_VIDEO, -1) < 0) {
|
dev_err(&pdev->dev,
|
": Could not register Video for Linux device\n");
|
vfd->minor = -1;
|
ret = -ENODEV;
|
goto error2;
|
}
|
video_set_drvdata(vfd, vout);
|
|
dev_info(&pdev->dev,
|
": registered and initialized video device %d\n",
|
vfd->minor);
|
if (k == (pdev->num_resources - 1))
|
return 0;
|
|
continue;
|
error2:
|
if (vout->vid_info.rotation_type == VOUT_ROT_VRFB)
|
omap_vout_release_vrfb(vout);
|
error1:
|
video_device_release(vfd);
|
error:
|
kfree(vout);
|
return ret;
|
}
|
|
return -ENODEV;
|
}
|
/* Driver functions */
|
static void omap_vout_cleanup_device(struct omap_vout_device *vout)
|
{
|
struct video_device *vfd;
|
struct omapvideo_info *ovid;
|
|
if (!vout)
|
return;
|
|
vfd = vout->vfd;
|
ovid = &vout->vid_info;
|
if (vfd) {
|
if (!video_is_registered(vfd)) {
|
/*
|
* The device was never registered, so release the
|
* video_device struct directly.
|
*/
|
video_device_release(vfd);
|
} else {
|
/*
|
* The unregister function will release the video_device
|
* struct as well as unregistering it.
|
*/
|
video_unregister_device(vfd);
|
}
|
}
|
v4l2_ctrl_handler_free(&vout->ctrl_handler);
|
if (ovid->rotation_type == VOUT_ROT_VRFB) {
|
omap_vout_release_vrfb(vout);
|
/* Free the VRFB buffer if allocated
|
* init time
|
*/
|
if (vout->vrfb_static_allocation)
|
omap_vout_free_vrfb_buffers(vout);
|
}
|
|
kfree(vout);
|
}
|
|
static int omap_vout_remove(struct platform_device *pdev)
|
{
|
int k;
|
struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev);
|
struct omap2video_device *vid_dev = container_of(v4l2_dev, struct
|
omap2video_device, v4l2_dev);
|
|
v4l2_device_unregister(v4l2_dev);
|
for (k = 0; k < pdev->num_resources; k++)
|
omap_vout_cleanup_device(vid_dev->vouts[k]);
|
|
for (k = 0; k < vid_dev->num_displays; k++) {
|
if (vid_dev->displays[k]->state != OMAP_DSS_DISPLAY_DISABLED)
|
vid_dev->displays[k]->driver->disable(vid_dev->displays[k]);
|
|
omap_dss_put_device(vid_dev->displays[k]);
|
}
|
kfree(vid_dev);
|
return 0;
|
}
|
|
static int __init omap_vout_probe(struct platform_device *pdev)
|
{
|
int ret = 0, i;
|
struct omap_overlay *ovl;
|
struct omap_dss_device *dssdev = NULL;
|
struct omap_dss_device *def_display;
|
struct omap2video_device *vid_dev = NULL;
|
|
if (omapdss_is_initialized() == false)
|
return -EPROBE_DEFER;
|
|
ret = omapdss_compat_init();
|
if (ret) {
|
dev_err(&pdev->dev, "failed to init dss\n");
|
return ret;
|
}
|
|
if (pdev->num_resources == 0) {
|
dev_err(&pdev->dev, "probed for an unknown device\n");
|
ret = -ENODEV;
|
goto err_dss_init;
|
}
|
|
vid_dev = kzalloc(sizeof(struct omap2video_device), GFP_KERNEL);
|
if (vid_dev == NULL) {
|
ret = -ENOMEM;
|
goto err_dss_init;
|
}
|
|
vid_dev->num_displays = 0;
|
for_each_dss_dev(dssdev) {
|
omap_dss_get_device(dssdev);
|
|
if (!dssdev->driver) {
|
dev_warn(&pdev->dev, "no driver for display: %s\n",
|
dssdev->name);
|
omap_dss_put_device(dssdev);
|
continue;
|
}
|
|
vid_dev->displays[vid_dev->num_displays++] = dssdev;
|
}
|
|
if (vid_dev->num_displays == 0) {
|
dev_err(&pdev->dev, "no displays\n");
|
ret = -EINVAL;
|
goto probe_err0;
|
}
|
|
vid_dev->num_overlays = omap_dss_get_num_overlays();
|
for (i = 0; i < vid_dev->num_overlays; i++)
|
vid_dev->overlays[i] = omap_dss_get_overlay(i);
|
|
vid_dev->num_managers = omap_dss_get_num_overlay_managers();
|
for (i = 0; i < vid_dev->num_managers; i++)
|
vid_dev->managers[i] = omap_dss_get_overlay_manager(i);
|
|
/* Get the Video1 overlay and video2 overlay.
|
* Setup the Display attached to that overlays
|
*/
|
for (i = 1; i < vid_dev->num_overlays; i++) {
|
ovl = omap_dss_get_overlay(i);
|
dssdev = ovl->get_device(ovl);
|
|
if (dssdev) {
|
def_display = dssdev;
|
} else {
|
dev_warn(&pdev->dev, "cannot find display\n");
|
def_display = NULL;
|
}
|
if (def_display) {
|
struct omap_dss_driver *dssdrv = def_display->driver;
|
|
ret = dssdrv->enable(def_display);
|
if (ret) {
|
/* Here we are not considering a error
|
* as display may be enabled by frame
|
* buffer driver
|
*/
|
dev_warn(&pdev->dev,
|
"'%s' Display already enabled\n",
|
def_display->name);
|
}
|
}
|
}
|
|
if (v4l2_device_register(&pdev->dev, &vid_dev->v4l2_dev) < 0) {
|
dev_err(&pdev->dev, "v4l2_device_register failed\n");
|
ret = -ENODEV;
|
goto probe_err1;
|
}
|
|
ret = omap_vout_create_video_devices(pdev);
|
if (ret)
|
goto probe_err2;
|
|
for (i = 0; i < vid_dev->num_displays; i++) {
|
struct omap_dss_device *display = vid_dev->displays[i];
|
|
if (display->driver->update)
|
display->driver->update(display, 0, 0,
|
display->panel.timings.x_res,
|
display->panel.timings.y_res);
|
}
|
return 0;
|
|
probe_err2:
|
v4l2_device_unregister(&vid_dev->v4l2_dev);
|
probe_err1:
|
for (i = 1; i < vid_dev->num_overlays; i++) {
|
def_display = NULL;
|
ovl = omap_dss_get_overlay(i);
|
dssdev = ovl->get_device(ovl);
|
|
if (dssdev)
|
def_display = dssdev;
|
|
if (def_display && def_display->driver)
|
def_display->driver->disable(def_display);
|
}
|
probe_err0:
|
kfree(vid_dev);
|
err_dss_init:
|
omapdss_compat_uninit();
|
return ret;
|
}
|
|
static struct platform_driver omap_vout_driver = {
|
.driver = {
|
.name = VOUT_NAME,
|
},
|
.remove = omap_vout_remove,
|
};
|
|
static int __init omap_vout_init(void)
|
{
|
if (platform_driver_probe(&omap_vout_driver, omap_vout_probe) != 0) {
|
printk(KERN_ERR VOUT_NAME ":Could not register Video driver\n");
|
return -EINVAL;
|
}
|
return 0;
|
}
|
|
static void omap_vout_cleanup(void)
|
{
|
platform_driver_unregister(&omap_vout_driver);
|
}
|
|
late_initcall(omap_vout_init);
|
module_exit(omap_vout_cleanup);
|
