SAMA5 LCD: Move framebuffers to center of free memory region. That creates a guard band around the framebuffers that gives a little protection from any bad writes into the framebuffer
This commit is contained in:
Gregory Nutt
parent
0e53acfb24
commit
d72a99bc64
@ -687,7 +687,7 @@ endif # SAMA5_LCDC_HEO
|
||||
config SAMA5_LCDC_HCR
|
||||
bool "Enable hardware cursor (HCR)"
|
||||
default n
|
||||
depends on EXPERIMENTAL
|
||||
depends on EXPERIMENTAL && FB_HWCURSOR
|
||||
|
||||
if SAMA5_LCDC_HCR
|
||||
|
||||
|
||||
@ -76,6 +76,12 @@
|
||||
#endif
|
||||
#define SAMA5_LCDC_BACKLIGHT_OFF 0x00
|
||||
|
||||
#if defined(CONFIG_FB_HWCURSOR) && !defined(CONFIG_SAMA5_LCDC_HCR)
|
||||
# error CONFIG_FB_HWCURSOR=y but CONFIG_SAMA5_LCDC_HCR=n
|
||||
#elif !defined(CONFIG_FB_HWCURSOR) && defined(CONFIG_SAMA5_LCDC_HCR)
|
||||
# error CONFIG_FB_HWCURSOR=n but CONFIG_SAMA5_LCDC_HCR=y
|
||||
#endif
|
||||
|
||||
/* Color/video formats */
|
||||
|
||||
#if defined(CONFIG_SAMA5_LCDC_BASE_RGB444)
|
||||
@ -330,117 +336,143 @@
|
||||
|
||||
#define SAMA5_BASE_FBSIZE (SAMA5_BASE_STRIDE * BOARD_LCDC_HEIGHT)
|
||||
|
||||
#ifndef CONFIG_SAMA5_LCDC_OVR1_MAXWIDTH
|
||||
# define CONFIG_SAMA5_LCDC_OVR1_MAXWIDTH BOARD_LCDC_WIDTH
|
||||
#ifdef CONFIG_SAMA5_LCDC_OVR1
|
||||
# ifndef CONFIG_SAMA5_LCDC_OVR1_MAXWIDTH
|
||||
# define CONFIG_SAMA5_LCDC_OVR1_MAXWIDTH BOARD_LCDC_WIDTH
|
||||
# endif
|
||||
|
||||
# if CONFIG_SAMA5_LCDC_OVR1_MAXWIDTH > BOARD_LCDC_WIDTH
|
||||
# error Width of overlay 1 exceeds the width of the display
|
||||
# endif
|
||||
|
||||
# ifndef CONFIG_SAMA5_LCDC_OVR1_MAXHEIGHT
|
||||
# define CONFIG_SAMA5_LCDC_OVR1_MAXHEIGHT BOARD_LCDC_HEIGHT
|
||||
# endif
|
||||
|
||||
# if CONFIG_SAMA5_LCDC_OVR1_MAXHEIGHT > BOARD_LCDC_HEIGHT
|
||||
# error Height of overlay 1 exceeds the height of the display
|
||||
# endif
|
||||
|
||||
# if SAMA5_LCDC_OVR1_BPP == 16
|
||||
# define SAMA5_OVR1_STRIDE ((CONFIG_SAMA5_LCDC_OVR1_MAXWIDTH * 16 + 7) / 8)
|
||||
# elif SAMA5_LCDC_OVR1_BPP == 24
|
||||
# define SAMA5_OVR1_STRIDE ((CONFIG_SAMA5_LCDC_OVR1_MAXWIDTH * 24 + 7) / 8)
|
||||
# elif SAMA5_LCDC_OVR1_BPP == 32
|
||||
# define SAMA5_OVR1_STRIDE ((CONFIG_SAMA5_LCDC_OVR1_MAXWIDTH * 32 + 7) / 8)
|
||||
# elif defined(CONFIG_SAMA5_LCDC_OVR1)
|
||||
# error Undefined or unrecognized overlay 1 color resolution
|
||||
# endif
|
||||
|
||||
# define SAMA5_OVR1_FBSIZE (SAMA5_OVR1_STRIDE * CONFIG_SAMA5_LCDC_OVR1_MAXHEIGHT)
|
||||
|
||||
#else
|
||||
# define SAMA5_OVR1_FBSIZE (0)
|
||||
#endif
|
||||
|
||||
#if CONFIG_SAMA5_LCDC_OVR1_MAXWIDTH > BOARD_LCDC_WIDTH
|
||||
# error Width of overlay 1 exceeds the width of the display
|
||||
#ifdef CONFIG_SAMA5_LCDC_OVR2
|
||||
# ifndef CONFIG_SAMA5_LCDC_OVR2_MAXWIDTH
|
||||
# define CONFIG_SAMA5_LCDC_OVR2_MAXWIDTH BOARD_LCDC_WIDTH
|
||||
# endif
|
||||
|
||||
# if CONFIG_SAMA5_LCDC_OVR2_MAXWIDTH > BOARD_LCDC_WIDTH
|
||||
# error Width of overlay 2 exceeds the width of the display
|
||||
# endif
|
||||
|
||||
# ifndef CONFIG_SAMA5_LCDC_OVR2_MAXHEIGHT
|
||||
# define CONFIG_SAMA5_LCDC_OVR2_MAXHEIGHT BOARD_LCDC_HEIGHT
|
||||
# endif
|
||||
|
||||
# if CONFIG_SAMA5_LCDC_OVR2_MAXHEIGHT > BOARD_LCDC_HEIGHT
|
||||
# error Height of overlay 2 exceeds the height of the display
|
||||
# endif
|
||||
|
||||
# if SAMA5_LCDC_OVR2_BPP == 16
|
||||
# define SAMA5_OVR2_STRIDE ((CONFIG_SAMA5_LCDC_OVR2_MAXWIDTH * 16 + 7) / 8)
|
||||
# elif SAMA5_LCDC_OVR2_BPP == 24
|
||||
# define SAMA5_OVR2_STRIDE ((CONFIG_SAMA5_LCDC_OVR2_MAXWIDTH * 24 + 7) / 8)
|
||||
# elif SAMA5_LCDC_OVR2_BPP == 32
|
||||
# define SAMA5_OVR2_STRIDE ((CONFIG_SAMA5_LCDC_OVR2_MAXWIDTH * 32 + 7) / 8)
|
||||
# elif defined(CONFIG_SAMA5_LCDC_OVR2)
|
||||
# error Undefined or unrecognized overlay 2 color resolution
|
||||
# endif
|
||||
|
||||
# define SAMA5_OVR2_FBSIZE (SAMA5_OVR2_STRIDE * CONFIG_SAMA5_LCDC_OVR2_MAXHEIGHT)
|
||||
|
||||
#else
|
||||
# define SAMA5_OVR2_FBSIZE (0)
|
||||
#endif
|
||||
|
||||
#ifndef CONFIG_SAMA5_LCDC_OVR1_MAXHEIGHT
|
||||
# define CONFIG_SAMA5_LCDC_OVR1_MAXHEIGHT BOARD_LCDC_HEIGHT
|
||||
#ifdef CONFIG_SAMA5_LCDC_HEO
|
||||
# ifndef CONFIG_SAMA5_LCDC_HEO_MAXWIDTH
|
||||
# define CONFIG_SAMA5_LCDC_HEO_MAXWIDTH BOARD_LCDC_WIDTH
|
||||
# endif
|
||||
|
||||
# if CONFIG_SAMA5_LCDC_HEO_MAXWIDTH > BOARD_LCDC_WIDTH
|
||||
# error Width of HEO exceeds the width of the display
|
||||
# endif
|
||||
|
||||
# ifndef CONFIG_SAMA5_LCDC_HEO_MAXHEIGHT
|
||||
# define CONFIG_SAMA5_LCDC_HEO_MAXHEIGHT BOARD_LCDC_HEIGHT
|
||||
# endif
|
||||
|
||||
# if CONFIG_SAMA5_LCDC_HEO_MAXHEIGHT > BOARD_LCDC_HEIGHT
|
||||
# error Height of HEO exceeds the height of the display
|
||||
# endif
|
||||
|
||||
# if SAMA5_LCDC_HEO_BPP == 16
|
||||
# define SAMA5_HEO_STRIDE ((CONFIG_SAMA5_LCDC_HEO_MAXWIDTH * 16 + 7) / 8)
|
||||
# elif SAMA5_LCDC_HEO_BPP == 24
|
||||
# define SAMA5_HEO_STRIDE ((CONFIG_SAMA5_LCDC_HEO_MAXWIDTH * 24 + 7) / 8)
|
||||
# elif SAMA5_LCDC_HEO_BPP == 32
|
||||
# define SAMA5_HEO_STRIDE ((CONFIG_SAMA5_LCDC_HEO_MAXWIDTH * 32 + 7) / 8)
|
||||
# elif defined(CONFIG_SAMA5_LCDC_HEO)
|
||||
# error Undefined or unrecognized HEO color resolution
|
||||
# endif
|
||||
|
||||
# define SAMA5_HEO_FBSIZE (SAMA5_HEO_STRIDE * CONFIG_SAMA5_LCDC_HEO_MAXHEIGHT)
|
||||
|
||||
#else
|
||||
# define SAMA5_HEO_FBSIZE (0)
|
||||
#endif
|
||||
|
||||
#if CONFIG_SAMA5_LCDC_OVR1_MAXHEIGHT > BOARD_LCDC_HEIGHT
|
||||
# error Height of overlay 1 exceeds the height of the display
|
||||
#ifdef CONFIG_SAMA5_LCDC_HCR
|
||||
# ifndef CONFIG_SAMA5_LCDC_HCR_MAXWIDTH
|
||||
# define CONFIG_SAMA5_LCDC_HCR_MAXWIDTH BOARD_LCDC_WIDTH
|
||||
# endif
|
||||
|
||||
# if CONFIG_SAMA5_LCDC_HCR_MAXWIDTH > BOARD_LCDC_WIDTH
|
||||
# error Width of the hardware cursor exceeds the width of the display
|
||||
# endif
|
||||
|
||||
# ifndef CONFIG_SAMA5_LCDC_HCR_MAXHEIGHT
|
||||
# define CONFIG_SAMA5_LCDC_HCR_MAXHEIGHT BOARD_LCDC_HEIGHT
|
||||
# endif
|
||||
|
||||
# if CONFIG_SAMA5_LCDC_HCR_MAXHEIGHT > BOARD_LCDC_HEIGHT
|
||||
# error Height of the hardware cursor exceeds the height of the display
|
||||
# endif
|
||||
|
||||
# if SAMA5_LCDC_HCR_BPP == 16
|
||||
# define SAMA5_HCR_STRIDE ((CONFIG_SAMA5_LCDC_HCR_MAXWIDTH * 16 + 7) / 8)
|
||||
# elif SAMA5_LCDC_HCR_BPP == 24
|
||||
# define SAMA5_HCR_STRIDE ((CONFIG_SAMA5_LCDC_HCR_MAXWIDTH * 24 + 7) / 8)
|
||||
# elif SAMA5_LCDC_HCR_BPP == 32
|
||||
# define SAMA5_HCR_STRIDE ((CONFIG_SAMA5_LCDC_HCR_MAXWIDTH * 32 + 7) / 8)
|
||||
# elif defined(CONFIG_SAMA5_LCDC_HCR)
|
||||
# error Undefined or unrecognized cursor color resolution
|
||||
# endif
|
||||
|
||||
# define SAMA5_HCR_FBSIZE (SAMA5_HCR_STRIDE * CONFIG_SAMA5_LCDC_HCR_MAXHEIGHT)
|
||||
|
||||
#else
|
||||
# define SAMA5_HCR_FBSIZE (0)
|
||||
#endif
|
||||
|
||||
#if SAMA5_LCDC_OVR1_BPP == 16
|
||||
# define SAMA5_OVR1_STRIDE ((CONFIG_SAMA5_LCDC_OVR1_MAXWIDTH * 16 + 7) / 8)
|
||||
#elif SAMA5_LCDC_OVR1_BPP == 24
|
||||
# define SAMA5_OVR1_STRIDE ((CONFIG_SAMA5_LCDC_OVR1_MAXWIDTH * 24 + 7) / 8)
|
||||
#elif SAMA5_LCDC_OVR1_BPP == 32
|
||||
# define SAMA5_OVR1_STRIDE ((CONFIG_SAMA5_LCDC_OVR1_MAXWIDTH * 32 + 7) / 8)
|
||||
#elif defined(CONFIG_SAMA5_LCDC_OVR1)
|
||||
# error Undefined or unrecognized overlay 1 color resolution
|
||||
#endif
|
||||
/* Total memory used for framebuffers */
|
||||
|
||||
#define SAMA5_OVR1_FBSIZE (SAMA5_OVR1_STRIDE * CONFIG_SAMA5_LCDC_OVR1_MAXHEIGHT)
|
||||
|
||||
#ifndef CONFIG_SAMA5_LCDC_OVR2_MAXWIDTH
|
||||
# define CONFIG_SAMA5_LCDC_OVR2_MAXWIDTH BOARD_LCDC_WIDTH
|
||||
#endif
|
||||
|
||||
#if CONFIG_SAMA5_LCDC_OVR2_MAXWIDTH > BOARD_LCDC_WIDTH
|
||||
# error Width of overlay 2 exceeds the width of the display
|
||||
#endif
|
||||
|
||||
#ifndef CONFIG_SAMA5_LCDC_OVR2_MAXHEIGHT
|
||||
# define CONFIG_SAMA5_LCDC_OVR2_MAXHEIGHT BOARD_LCDC_HEIGHT
|
||||
#endif
|
||||
|
||||
#if CONFIG_SAMA5_LCDC_OVR2_MAXHEIGHT > BOARD_LCDC_HEIGHT
|
||||
# error Height of overlay 2 exceeds the height of the display
|
||||
#endif
|
||||
|
||||
#if SAMA5_LCDC_OVR2_BPP == 16
|
||||
# define SAMA5_OVR2_STRIDE ((CONFIG_SAMA5_LCDC_OVR2_MAXWIDTH * 16 + 7) / 8)
|
||||
#elif SAMA5_LCDC_OVR2_BPP == 24
|
||||
# define SAMA5_OVR2_STRIDE ((CONFIG_SAMA5_LCDC_OVR2_MAXWIDTH * 24 + 7) / 8)
|
||||
#elif SAMA5_LCDC_OVR2_BPP == 32
|
||||
# define SAMA5_OVR2_STRIDE ((CONFIG_SAMA5_LCDC_OVR2_MAXWIDTH * 32 + 7) / 8)
|
||||
#elif defined(CONFIG_SAMA5_LCDC_OVR2)
|
||||
# error Undefined or unrecognized overlay 2 color resolution
|
||||
#endif
|
||||
|
||||
#define SAMA5_OVR2_FBSIZE (SAMA5_OVR2_STRIDE * CONFIG_SAMA5_LCDC_OVR2_MAXHEIGHT)
|
||||
|
||||
#ifndef CONFIG_SAMA5_LCDC_HEO_MAXWIDTH
|
||||
# define CONFIG_SAMA5_LCDC_HEO_MAXWIDTH BOARD_LCDC_WIDTH
|
||||
#endif
|
||||
|
||||
#if CONFIG_SAMA5_LCDC_HEO_MAXWIDTH > BOARD_LCDC_WIDTH
|
||||
# error Width of HEO exceeds the width of the display
|
||||
#endif
|
||||
|
||||
#ifndef CONFIG_SAMA5_LCDC_HEO_MAXHEIGHT
|
||||
# define CONFIG_SAMA5_LCDC_HEO_MAXHEIGHT BOARD_LCDC_HEIGHT
|
||||
#endif
|
||||
|
||||
#if CONFIG_SAMA5_LCDC_HEO_MAXHEIGHT > BOARD_LCDC_HEIGHT
|
||||
# error Height of HEO exceeds the height of the display
|
||||
#endif
|
||||
|
||||
#if SAMA5_LCDC_HEO_BPP == 16
|
||||
# define SAMA5_HEO_STRIDE ((CONFIG_SAMA5_LCDC_HEO_MAXWIDTH * 16 + 7) / 8)
|
||||
#elif SAMA5_LCDC_HEO_BPP == 24
|
||||
# define SAMA5_HEO_STRIDE ((CONFIG_SAMA5_LCDC_HEO_MAXWIDTH * 24 + 7) / 8)
|
||||
#elif SAMA5_LCDC_HEO_BPP == 32
|
||||
# define SAMA5_HEO_STRIDE ((CONFIG_SAMA5_LCDC_HEO_MAXWIDTH * 32 + 7) / 8)
|
||||
#elif defined(CONFIG_SAMA5_LCDC_HEO)
|
||||
# error Undefined or unrecognized HEO color resolution
|
||||
#endif
|
||||
|
||||
#define SAMA5_HEO_FBSIZE (SAMA5_HEO_STRIDE * CONFIG_SAMA5_LCDC_HEO_MAXHEIGHT)
|
||||
|
||||
#ifndef CONFIG_SAMA5_LCDC_HCR_MAXWIDTH
|
||||
# define CONFIG_SAMA5_LCDC_HCR_MAXWIDTH BOARD_LCDC_WIDTH
|
||||
#endif
|
||||
|
||||
#if CONFIG_SAMA5_LCDC_HCR_MAXWIDTH > BOARD_LCDC_WIDTH
|
||||
# error Width of the hardware cursor exceeds the width of the display
|
||||
#endif
|
||||
|
||||
#ifndef CONFIG_SAMA5_LCDC_HCR_MAXHEIGHT
|
||||
# define CONFIG_SAMA5_LCDC_HCR_MAXHEIGHT BOARD_LCDC_HEIGHT
|
||||
#endif
|
||||
|
||||
#if CONFIG_SAMA5_LCDC_HCR_MAXHEIGHT > BOARD_LCDC_HEIGHT
|
||||
# error Height of the hardware cursor exceeds the height of the display
|
||||
#endif
|
||||
|
||||
#if SAMA5_LCDC_HCR_BPP == 16
|
||||
# define SAMA5_HCR_STRIDE ((CONFIG_SAMA5_LCDC_HCR_MAXWIDTH * 16 + 7) / 8)
|
||||
#elif SAMA5_LCDC_HCR_BPP == 24
|
||||
# define SAMA5_HCR_STRIDE ((CONFIG_SAMA5_LCDC_HCR_MAXWIDTH * 24 + 7) / 8)
|
||||
#elif SAMA5_LCDC_HCR_BPP == 32
|
||||
# define SAMA5_HCR_STRIDE ((CONFIG_SAMA5_LCDC_HCR_MAXWIDTH * 32 + 7) / 8)
|
||||
#elif defined(CONFIG_SAMA5_LCDC_HCR)
|
||||
# error Undefined or unrecognized cursor color resolution
|
||||
#endif
|
||||
|
||||
#define SAMA5_HCR_FBSIZE (SAMA5_HCR_STRIDE * CONFIG_SAMA5_LCDC_HCR_MAXHEIGHT)
|
||||
#define SAMA5_TOTAL_FBSIZE (SAMA5_BASE_FBSIZE + SAMA5_OVR1_FBSIZE + \
|
||||
SAMA5_OVR2_FBSIZE + SAMA5_HEO_FBSIZE + \
|
||||
SAMA5_HCR_FBSIZE)
|
||||
|
||||
/* Are size, position, and pixel stride support needed? */
|
||||
|
||||
@ -487,9 +519,25 @@
|
||||
|
||||
#define SAMA5_LCDC_HCR_DSCR (CONFIG_SAMA5_LCDC_FB_VBASE+6*SIZEOF_SAM_DSCR_S)
|
||||
|
||||
#define SAMA5_LCDC_DSCR_SIZE (7*SIZEOF_SAM_DSCR_S)
|
||||
#define SAMA5_LCDC_DSCR_END (CONFIG_SAMA5_LCDC_FB_VBASE+SAMA5_LCDC_DSCR_SIZE)
|
||||
|
||||
/* Position the framebuffer memory in the center of the memory set aside. We
|
||||
* will use any skirts before or after the framebuffer memory as a guard against
|
||||
* wild framebuffer writes.
|
||||
*/
|
||||
|
||||
#define SAMA5_LCDC_BUFFER_SIZE (CONFIG_SAMA5_LCDC_FB_SIZE-SAMA5_LCDC_DSCR_SIZE)
|
||||
#define SAMA5_LCDC_BUFFER_FREE (SAMA5_LCDC_BUFFER_SIZE-SAMA5_TOTAL_FBSIZE)
|
||||
#define SAMA5_LCDC_BUFFER_START (SAMA5_LCDC_DSCR_END + SAMA5_LCDC_BUFFER_FREE/2)
|
||||
|
||||
#if SAMA5_LCDC_BUFFER_FREE < 0
|
||||
# error "SAMA5_LCDC_BUFFER_SIZE not large enough for frame buffers"
|
||||
#endif
|
||||
|
||||
/* Base layer frame buffer */
|
||||
|
||||
#define SAMA5_LCDC_BUFFER_BASE (CONFIG_SAMA5_LCDC_FB_VBASE+7*SIZEOF_SAM_DSCR_S)
|
||||
#define SAMA5_LCDC_BUFFER_BASE SAMA5_LCDC_BUFFER_START
|
||||
#define SAMA5_LCDC_ENDBUF_BASE (SAMA5_LCDC_BUFFER_BASE + SAMA5_BASE_FBSIZE)
|
||||
|
||||
#ifdef CONFIG_SAMA5_LCDC_OVR1
|
||||
@ -513,20 +561,13 @@
|
||||
# define SAMA5_LCDC_ENDBUF_HEO SAMA5_LCDC_ENDBUF_OVR2
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_FB_HWCURSOR
|
||||
#ifdef CONFIG_SAMA5_LCDC_HCR
|
||||
# define SAMA5_LCDC_BUFFER_HCR SAMA5_LCDC_ENDBUF_HEO
|
||||
# define SAMA5_LCDC_ENDBUF_HCR (SAMA5_LCDC_BUFFER_HCR + SAMA5_HCR_FBSIZE)
|
||||
#else
|
||||
# define SAMA5_LCDC_ENDBUF_HCR SAMA5_LCDC_ENDBUF_HEO
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_SAMA5_LCDC_FB_SIZE
|
||||
# if SAMA5_LCDC_ENDBUF_HCR > \
|
||||
(CONFIG_SAMA5_LCDC_FB_VBASE + CONFIG_SAMA5_LCDC_FB_SIZE)
|
||||
# error Fixed memory allocation not large enough
|
||||
# endif
|
||||
#endif
|
||||
|
||||
/* Layer helpers */
|
||||
|
||||
#define LCDC_NLAYERS 5
|
||||
@ -690,7 +731,7 @@ static void sam_show_layer(struct sam_layer_s *layer,
|
||||
uint32_t dispx, uint32_t dispy, uint32_t dispw, uint32_t disph,
|
||||
uint32_t imgw, uint32_t imgh);
|
||||
static void sam_show_base(void);
|
||||
#ifdef CONFIG_FB_HWCURSOR
|
||||
#ifdef CONFIG_SAMA5_LCDC_HCR
|
||||
static void sam_show_hcr(void);
|
||||
#endif
|
||||
|
||||
@ -1885,7 +1926,7 @@ static void sam_layer_orientation(void)
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_FB_HWCURSOR
|
||||
#ifdef CONFIG_SAMA5_LCDC_HCR
|
||||
/* Hardware Cursor orientation */
|
||||
|
||||
LAYER_HCR.flags = 0;
|
||||
@ -2034,7 +2075,7 @@ static void sam_layer_color(void)
|
||||
# endif
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_FB_HWCURSOR
|
||||
#ifdef CONFIG_SAMA5_LCDC_HCR
|
||||
/* Hardware Cursor color configuration, GA 0xff, Key #000000 */
|
||||
|
||||
# if defined(CONFIG_SAMA5_LCDC_HCR_RGB888P)
|
||||
@ -2235,7 +2276,7 @@ static void sam_layer_configure(void)
|
||||
memset(&LAYER_HCR, 0, sizeof(struct sam_layer_s));
|
||||
LAYER_HCR.dscr = (struct sam_dscr_s *)SAMA5_LCDC_HCR_DSCR;
|
||||
LAYER_HCR.lid = LCDC_LAYER_HCR;
|
||||
#ifdef CONFIG_FB_HWCURSOR
|
||||
#ifdef CONFIG_SAMA5_LCDC_HCR
|
||||
LAYER_HCR.framebuffer = (uint8_t *)SAMA5_LCDC_BUFFER_HCR;
|
||||
#endif
|
||||
}
|
||||
@ -2732,7 +2773,7 @@ static void sam_show_base(void)
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_FB_HWCURSOR
|
||||
#ifdef CONFIG_SAMA5_LCDC_HCR
|
||||
static void sam_show_hcr(void)
|
||||
{
|
||||
uint32_t regval;
|
||||
@ -2836,7 +2877,7 @@ int up_fbinitialize(void)
|
||||
sam_putreg(SAM_LCDC_HEOCHER, LCDC_HEOCHER_UPDATE);
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_FB_HWCURSOR
|
||||
#ifdef CONFIG_SAMA5_LCDC_HCR
|
||||
/* Show cursor layer */
|
||||
|
||||
sam_show_hcr();
|
||||
|
||||
@ -2270,6 +2270,40 @@ Configurations
|
||||
$ cd ~/nuttx-git/nuttx
|
||||
$ make
|
||||
|
||||
STATUS:
|
||||
2013-10-18. This example kind of works, but there are still far too
|
||||
many outstanding issues:
|
||||
|
||||
a) It runs of the SAMA5D31 and SAMA5D34, but not on the SAMA5D33. This
|
||||
board is from a different manufacturer and there may be some SDRAM-
|
||||
related issues?
|
||||
b) There appears to be an SDRAM noise issue on the SAMA5D31 and SAMA5D34.
|
||||
I suspect that the SDRAM setup is non-optimal. The symptom is that
|
||||
writing into frame buffer (in SDRAM) occasionally corrupts the DMA
|
||||
descriptors (also in SDRAM) When the bad DMA descriptors are
|
||||
fetched, the channel shuts down and the display goes black. This
|
||||
problem could also be cause by a bad write outside of the framebuffer,
|
||||
but was not the case in the few examples that I studied.
|
||||
c) There are some occasional start up issues. It appears that the LCDC
|
||||
is programed incorrectly and groups of pixels in the images are
|
||||
reversed (producing an odd serrated look to the images).
|
||||
d) I think that there may be more issues if GRAPHICS and INPUT debug is
|
||||
off. I have not tested with DEBUG off.
|
||||
e) The biggest problem is the touchscreen accuracy. The touchscreen
|
||||
seems stable during calibration, but the first thing that this
|
||||
example requires is a touch in the far, far, upper left corner of
|
||||
the display. In that region, I cannot get reliable touch measurements
|
||||
and so I cannot get past the opening display.
|
||||
f) The NxWM example was designed tiny displays. On this large 800x480
|
||||
display, the icons are too tiny to be usable. I have created a large
|
||||
320x320 logo for the opening screen and added image scaling to expand
|
||||
the images in the taskbar. The expanded images are not great. If I
|
||||
ever get past the opening screen, the same problems will exist in the
|
||||
application toolbar and in the start winow. These icons are not yet
|
||||
scaled.
|
||||
|
||||
Bottom line: Not ready for prime time.
|
||||
|
||||
ostest:
|
||||
|
||||
This configuration directory, performs a simple OS test using
|
||||
|
||||
Loading…
Reference in New Issue
Block a user