LineageOS/android_vendor_qcom_opensource_display-commonsys-intf
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gralloc: Enable framebuffer memory mapping.

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Enable mapping from framebuffer if debug.gralloc.map_fb_memory
is set to 1. This is useful for bringup.

Change-Id: I3c860148729c5f5c98d84bf17e6633285b4b0af1
This commit is contained in:
Naseer Ahmed
2013-04-10 21:27:09 -04:00
parent b28da24954
commit 47aa15ed78
3 changed files with 122 additions and 22 deletions
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18
libgralloc/framebuffer.cpp
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@@ -86,11 +86,13 @@ static int fb_post(struct framebuffer_device_t* dev, buffer_handle_t buffer)
{
private_module_t* m =
reinterpret_cast<private_module_t*>(dev->common.module);
struct mdp_display_commit prim_commit;
memset(&prim_commit, 0, sizeof(struct mdp_display_commit));
prim_commit.wait_for_finish = 1;
if (ioctl(m->framebuffer->fd, MSMFB_DISPLAY_COMMIT, &prim_commit) == -1) {
ALOGE("%s: MSMFB_DISPLAY_COMMIT for primary failed, str: %s",
private_handle_t *hnd = static_cast<private_handle_t*>
(const_cast<native_handle_t*>(buffer));
const size_t offset = hnd->base - m->framebuffer->base;
m->info.activate = FB_ACTIVATE_VBL;
m->info.yoffset = offset / m->finfo.line_length;
if (ioctl(m->framebuffer->fd, FBIOPUT_VSCREENINFO, &m->info) == -1) {
ALOGE("%s: FBIOPUT_VSCREENINFO for primary failed, str: %s",
__FUNCTION__, strerror(errno));
return -errno;
}
@@ -308,7 +310,7 @@ int mapFrameBufferLocked(struct private_module_t* module)
*/
int err;
module->numBuffers = 2;
module->numBuffers = info.yres_virtual / info.yres;
module->bufferMask = 0;
//adreno needs page aligned offsets. Align the fbsize to pagesize.
size_t fbSize = roundUpToPageSize(finfo.line_length * info.yres)*
@@ -325,6 +327,10 @@ int mapFrameBufferLocked(struct private_module_t* module)
module->framebuffer->base = intptr_t(vaddr);
memset(vaddr, 0, fbSize);
module->currentOffset = 0;
//Enable vsync
int enable = 1;
ioctl(module->framebuffer->fd, MSMFB_OVERLAY_VSYNC_CTRL,
&enable);
return 0;
}