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feat(IL0323): Add alternative partial refresh option

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Adds Kconfig to enable the alternative partial refresh setting from @aumuell:
"Gates scan only inside of the partial window" instead of setting PTL_SCAN
when configuring the window for partial refreshes seems to limit degrading
of areas outside the refresh window quite a bit.
But https://github.com/CursedHardware/epd-driver-ic/blob/master/IL0323.pdf,
p. 26 states that this is not the "default".
This commit is contained in:
Cem Aksoylar 2023-04-09 22:19:23 -07:00 • committed by hannah
parent d45dba3dd7
commit a3699c8268
2 changed files with 8 additions and 0 deletions
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4
app/module/drivers/display/Kconfig.il0323
View file

@ -13,3 +13,7 @@ config IL0323
config IL0323_INVERT config IL0323_INVERT
bool "Invert display" bool "Invert display"
default n default n
config IL0323_ALTERNATIVE_REFRESH
bool "Use an alternative approach for partial refreshes"
default n

4
app/module/drivers/display/il0323.c
View file

@ -124,7 +124,11 @@ static int il0323_write(const struct device *dev, const uint16_t x, const uint16
ptl[IL0323_PTL_HRED_IDX] = x_end_idx; ptl[IL0323_PTL_HRED_IDX] = x_end_idx;
ptl[IL0323_PTL_VRST_IDX] = y; ptl[IL0323_PTL_VRST_IDX] = y;
ptl[IL0323_PTL_VRED_IDX] = y_end_idx; ptl[IL0323_PTL_VRED_IDX] = y_end_idx;
#if IS_ENABLED(CONFIG_IL0323_ALTERNATIVE_REFRESH)
ptl[sizeof(ptl) - 1] = 0; // limits fading outside of refresh window
#else
ptl[sizeof(ptl) - 1] = IL0323_PTL_PT_SCAN; ptl[sizeof(ptl) - 1] = IL0323_PTL_PT_SCAN;
#endif
LOG_HEXDUMP_DBG(ptl, sizeof(ptl), "ptl"); LOG_HEXDUMP_DBG(ptl, sizeof(ptl), "ptl");
il0323_busy_wait(cfg); il0323_busy_wait(cfg);