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authorSimon Glass <sjg@chromium.org>2020-02-03 17:36:13 +0300
committerSimon Glass <sjg@chromium.org>2020-02-06 05:33:46 +0300
commit6be88c72828923f2df8c441ee12f5829e0d06f32 (patch)
tree74f7feec5110c1b44a13804e032b988e7f97d71c /arch/sandbox/include
parent96d0cd460430f18d0f22eead5409ed3dc53b4c4e (diff)
downloadu-boot-6be88c72828923f2df8c441ee12f5829e0d06f32.tar.xz
sandbox: sdl: Add an option to double the screen size
On high-DPI displays U-Boot's LCD window can look very small. Add a -K flag to expand it to make things easier to read, while still using the existing resolution internally. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Anatolij Gustschin <agust@denx.de>
Diffstat (limited to 'arch/sandbox/include')
-rw-r--r--arch/sandbox/include/asm/sdl.h9
-rw-r--r--arch/sandbox/include/asm/state.h1
2 files changed, 7 insertions, 3 deletions
diff --git a/arch/sandbox/include/asm/sdl.h b/arch/sandbox/include/asm/sdl.h
index c45dbddd70..47fc4889d2 100644
--- a/arch/sandbox/include/asm/sdl.h
+++ b/arch/sandbox/include/asm/sdl.h
@@ -17,10 +17,13 @@
* @height Window height in pixels
* @log2_bpp: Log to base 2 of the number of bits per pixel. So a 32bpp
* display will pass 5, since 2*5 = 32
+ * @double_size: true to double the visible size in each direction for high-DPI
+ * displays
* @return 0 if OK, -ENODEV if no device, -EIO if SDL failed to initialize
* and -EPERM if the video failed to come up.
*/
-int sandbox_sdl_init_display(int width, int height, int log2_bpp);
+int sandbox_sdl_init_display(int width, int height, int log2_bpp,
+ bool double_size);
/**
* sandbox_sdl_sync() - Sync current U-Boot LCD frame buffer to SDL
@@ -78,8 +81,8 @@ int sandbox_sdl_sound_stop(void);
int sandbox_sdl_sound_init(int rate, int channels);
#else
-static inline int sandbox_sdl_init_display(int width, int height,
- int log2_bpp)
+static inline int sandbox_sdl_init_display(int width, int height, int log2_bpp,
+ bool double_size)
{
return -ENODEV;
}
diff --git a/arch/sandbox/include/asm/state.h b/arch/sandbox/include/asm/state.h
index ad3e94beb9..705645d714 100644
--- a/arch/sandbox/include/asm/state.h
+++ b/arch/sandbox/include/asm/state.h
@@ -83,6 +83,7 @@ struct sandbox_state {
bool write_state; /* Write sandbox state on exit */
bool ignore_missing_state_on_read; /* No error if state missing */
bool show_lcd; /* Show LCD on start-up */
+ bool double_lcd; /* Double display size for high-DPI */
enum sysreset_t last_sysreset; /* Last system reset type */
bool sysreset_allowed[SYSRESET_COUNT]; /* Allowed system reset types */
enum state_terminal_raw term_raw; /* Terminal raw/cooked */