Some display drivers, like ILI9341, support 3-wire 9-bit SPI. In
contrast to 4-wire 8-bit SPI, which uses dedicated CMD/DATA pin to
distinguish between CMD and DATA, 3-wire 9-bit SPI uses MSB of 9-bit
frame for this purpose.
Signed-off-by: Jiri Vlasak <jvlasak@elektroline.cz>
It is now possible to configure SPI delays for st7789 controller if
CONFIG_SPI_DELAY_CONTROL is set. Default values for SPI peripheral
may be too long or too short, therefore the display controller set
its own values as required. The default values in configuration
are taken from the reference manual, but it is possible they may
require tuning for different revisions or temperatures for
example.
Signed-off-by: Michal Lenc <michallenc@seznam.cz>
ST7789 fills the display with 0xffff color during its initialization.
This color may or may not be overwritten by a higher layer (framebuffer
or lcd driver for example). The color remains on the display until
application UI is started if not overwritten by the higher layer before.
This commit adds configuration option LCD_ST7789_DEFAULT_COLOR that
allows to set the default background color. This may avoid shining
display with, for example, white color for an extensive amount of time.
The default value is set to 0xffff previously hard-coded in the driver,
therefore current implementations will not notice the change.
Signed-off-by: Michal Lenc <michallenc@seznam.cz>
Add configuration and driver support for the SSD1681 1.54 inch e-paper display,
including the necessary waveforms and settings for proper operation. This extends
the existing SSD1680 e-paper driver to accommodate the new display module.
The changes involve updates to the Kconfig file for additional configuration options,
modifications to the driver implementation in ssd1680.c to include SSD1681 specific
logic, and updates to the header file ssd1680.h to reflect the added support.
Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
3 wire interface for ST7789 LCD controller does not use CMD/DATA pin to
specify whether data or command is send but uses 9th bit of SPI transfer.
This commit adds support for 3 wire interface to ST7789 controller.
Signed-off-by: Michal Lenc <michallenc@seznam.cz>
Support mirror display by X/Y axis, it's useful for
single portrait/landscape but need to mirror specific direction.
Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
In order to support multiple LCD instances per board, add a pointer from
lcd_planeinfo_s to the lcd_dev_s which it belongs to. Also enhance the
putrun, getrun, putarea and getarea methods to pass through the
lcd_dev_s pointer to the respective device driver.
Port all LCD device drivers to this lcd_planeinfo_s extension.
Enhance SSD1306 driver to support multiple LCDs.
Signed-off-by: Michael Jung <michael.jung@secore.ly>
1.Expose the notification through fb_vtable_s::updatearea
2.Incorporate old nx_notify_rectangle into the new updatearea callback
3.Migrate the calle of nx_notify_rectangle to fb_vtable_s::updatearea
Change-Id: Ia3d1f73e8757b2d381586d76ec6adc16c810018d
Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
since graphics/Kconfig already do the similar thing
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: Ib2c1955a6b027cfa4e83c3b81ddfb505902dd85d
