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efi_loader: Add DM_VIDEO support

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Some systems are starting to shift to support DM_VIDEO which exposes
the frame buffer through a slightly different interface.

This is a poor man's effort to support the dm video interface instead
of the lcd one. We still only support a single display device.

Signed-off-by: Alexander Graf <agraf@suse.de>
[trini: Remove fb_size / fb_base as they were not used]
Signed-off-by: Tom Rini <trini@konsulko.com>
This commit is contained in:
Alexander Graf 2016-06-05 22:34:31 +02:00 committed by Tom Rini
parent 74c16acce3
commit a812241091
1 changed files with 50 additions and 7 deletions
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57
lib/efi_loader/efi_gop.c
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@ -7,10 +7,12 @@
*/
#include <common.h>
#include <dm.h>
#include <efi_loader.h>
#include <inttypes.h>
#include <lcd.h>
#include <malloc.h>
#include <video.h>
DECLARE_GLOBAL_DATA_PTR;
@ -24,6 +26,8 @@ struct efi_gop_obj {
/* The only mode we support */
struct efi_gop_mode_info info;
struct efi_gop_mode mode;
/* Fields we only have acces to during init */
u32 bpix;
};
static efi_status_t EFIAPI gop_query_mode(struct efi_gop *this, u32 mode_number,
@ -57,6 +61,7 @@ static efi_status_t EFIAPI gop_blt(struct efi_gop *this, void *buffer,
unsigned long dy, unsigned long width,
unsigned long height, unsigned long delta)
{
struct efi_gop_obj *gopobj = container_of(this, struct efi_gop_obj, ops);
int i, j, line_len16, line_len32;
void *fb;
@ -67,13 +72,17 @@ static efi_status_t EFIAPI gop_blt(struct efi_gop *this, void *buffer,
return EFI_EXIT(EFI_INVALID_PARAMETER);
fb = (void*)gd->fb_base;
line_len16 = panel_info.vl_col * sizeof(u16);
line_len32 = panel_info.vl_col * sizeof(u32);
line_len16 = gopobj->info.width * sizeof(u16);
line_len32 = gopobj->info.width * sizeof(u32);
/* Copy the contents line by line */
switch (panel_info.vl_bpix) {
switch (gopobj->bpix) {
#ifdef CONFIG_DM_VIDEO
case VIDEO_BPP32:
#else
case LCD_COLOR32:
#endif
for (i = 0; i < height; i++) {
u32 *dest = fb + ((i + dy) * line_len32) +
(dx * sizeof(u32));
@ -84,7 +93,11 @@ static efi_status_t EFIAPI gop_blt(struct efi_gop *this, void *buffer,
memcpy(dest, src, width * sizeof(u32));
}
break;
#ifdef CONFIG_DM_VIDEO
case VIDEO_BPP16:
#else
case LCD_COLOR16:
#endif
for (i = 0; i < height; i++) {
u16 *dest = fb + ((i + dy) * line_len16) +
(dx * sizeof(u16));
@ -102,7 +115,11 @@ static efi_status_t EFIAPI gop_blt(struct efi_gop *this, void *buffer,
break;
}
#ifdef CONFIG_DM_VIDEO
video_sync_all();
#else
lcd_sync();
#endif
return EFI_EXIT(EFI_SUCCESS);
}
@ -111,10 +128,34 @@ static efi_status_t EFIAPI gop_blt(struct efi_gop *this, void *buffer,
int efi_gop_register(void)
{
struct efi_gop_obj *gopobj;
u32 bpix, col, row;
switch (panel_info.vl_bpix) {
#ifdef CONFIG_DM_VIDEO
struct udevice *vdev;
/* We only support a single video output device for now */
if (uclass_first_device(UCLASS_VIDEO, &vdev))
return -1;
struct video_priv *priv = dev_get_uclass_priv(vdev);
bpix = priv->bpix;
col = video_get_xsize(vdev);
row = video_get_ysize(vdev);
#else
bpix = panel_info.vl_bpix;
col = panel_info.vl_col;
row = panel_info.vl_row;
#endif
switch (bpix) {
#ifdef CONFIG_DM_VIDEO
case VIDEO_BPP16:
case VIDEO_BPP32:
#else
case LCD_COLOR32:
case LCD_COLOR16:
#endif
break;
default:
/* So far, we only work in 16 or 32 bit mode */
@ -137,10 +178,12 @@ int efi_gop_register(void)
gopobj->mode.info_size = sizeof(gopobj->info);
gopobj->info.version = 0;
gopobj->info.width = panel_info.vl_col;
gopobj->info.height = panel_info.vl_row;
gopobj->info.width = col;
gopobj->info.height = row;
gopobj->info.pixel_format = EFI_GOT_RGBA8;
gopobj->info.pixels_per_scanline = panel_info.vl_col;
gopobj->info.pixels_per_scanline = col;
gopobj->bpix = bpix;
/* Hook up to the device list */
list_add_tail(&gopobj->parent.link, &efi_obj_list);