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video: mmp: add pitch info in mmp_win structure 

Add pitch length info of graphics/video layer, pitch is used
to represent line length in byte, the usage depends on pix_fmt.
If the fmt is YUV, the pitch[0] will be Y length,pitch[1]
will be U length, pitch[2] will be V lenth.
If the fmt is RGB, the picth[0] will be line lenth, and
pitch[1]/pitch[2] will be 0 and not be used.

Signed-off-by: Jing Xiang <jxiang@marvell.com>
Signed-off-by: Jett.Zhou <jtzhou@marvell.com>
Signed-off-by: Zhou Zhu <zzhu3@marvell.com>
Reviewed-by: Daniel Drake <dsd@laptop.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Jing Xiang 2013-09-13 14:59:49 +08:00 committed by Tomi Valkeinen
parent cc50bc5bb2
commit 24586d8342
3 changed files with 34 additions and 7 deletions
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6
drivers/video/mmp/fb/mmpfb.c
View File

@ -395,12 +395,18 @@ static int var_update(struct fb_info *info)
static void mmpfb_set_win(struct fb_info *info)
{
struct mmpfb_info *fbi = info->par;
struct fb_var_screeninfo *var = &info->var;
struct mmp_win win;
u32 stride;
memset(&win, 0, sizeof(win));
win.xsrc = win.xdst = fbi->mode.xres;
win.ysrc = win.ydst = fbi->mode.yres;
win.pix_fmt = fbi->pix_fmt;
stride = pixfmt_to_stride(win.pix_fmt);
win.pitch[0] = var->xres_virtual * stride;
win.pitch[1] = win.pitch[2] =
(stride == 1) ? (var->xres_virtual >> 1) : 0;
mmp_overlay_set_win(fbi->overlay, &win);
}

30
drivers/video/mmp/hw/mmp_ctrl.c
View File

@ -142,17 +142,27 @@ static void dmafetch_set_fmt(struct mmp_overlay *overlay)
static void overlay_set_win(struct mmp_overlay *overlay, struct mmp_win *win)
{
struct lcd_regs *regs = path_regs(overlay->path);
u32 pitch;
/* assert win supported */
memcpy(&overlay->win, win, sizeof(struct mmp_win));
mutex_lock(&overlay->access_ok);
pitch = win->xsrc * pixfmt_to_stride(win->pix_fmt);
writel_relaxed(pitch, &regs->g_pitch);
writel_relaxed((win->ysrc << 16) | win->xsrc, &regs->g_size);
writel_relaxed((win->ydst << 16) | win->xdst, &regs->g_size_z);
writel_relaxed(0, &regs->g_start);
if (overlay_is_vid(overlay)) {
writel_relaxed(win->pitch[0], &regs->v_pitch_yc);
writel_relaxed(win->pitch[2] << 16 |
win->pitch[1], &regs->v_pitch_uv);
writel_relaxed((win->ysrc << 16) | win->xsrc, &regs->v_size);
writel_relaxed((win->ydst << 16) | win->xdst, &regs->v_size_z);
writel_relaxed(win->ypos << 16 | win->xpos, &regs->v_start);
} else {
writel_relaxed(win->pitch[0], &regs->g_pitch);
writel_relaxed((win->ysrc << 16) | win->xsrc, &regs->g_size);
writel_relaxed((win->ydst << 16) | win->xdst, &regs->g_size_z);
writel_relaxed(win->ypos << 16 | win->xpos, &regs->g_start);
}
dmafetch_set_fmt(overlay);
mutex_unlock(&overlay->access_ok);
@ -234,7 +244,13 @@ static int overlay_set_addr(struct mmp_overlay *overlay, struct mmp_addr *addr)
/* FIXME: assert addr supported */
memcpy(&overlay->addr, addr, sizeof(struct mmp_addr));
writel(addr->phys[0], &regs->g_0);
if (overlay_is_vid(overlay)) {
writel_relaxed(addr->phys[0], &regs->v_y0);
writel_relaxed(addr->phys[1], &regs->v_u0);
writel_relaxed(addr->phys[2], &regs->v_v0);
} else
writel_relaxed(addr->phys[0], &regs->g_0);
return overlay->addr.phys[0];
}

5
include/video/mmp_disp.h
View File

@ -91,6 +91,11 @@ struct mmp_win {
u16 up_crop;
u16 bottom_crop;
int pix_fmt;
/*
* pitch[0]: graphics/video layer line length or y pitch
* pitch[1]/pitch[2]: video u/v pitch if non-zero
*/
u32 pitch[3];
};
struct mmp_addr {