Cleanup hal drivers (part 2)

[puzrin]

Continue of #22.

Pio fixed bug with search paths or our devboard and we can finish with the rest. I already removed some files https://github.com/lvgl/lv_platformio/commits/master.

@kisvegabor could you check content of ttf/touchpad src https://github.com/lvgl/lv_platformio/tree/master/hal/stm32f429_disco? Can those be reduced by reuse of board drivers from hal?

See ~/.platformio/packages/framework-stm32cube/f4/Drivers/BSP/STM32F429I-Discovery

[kisvegabor]

It seems the rest of the init function are not part of BSP. They are added manually in the official examples too. See:

• LTDC
• DMA2D
• SDRAM

[puzrin]

Ok. Let me ask different. There are 2 BSP files:

• ~/.platformio/packages/framework-stm32cube/f4/Drivers/BSP/STM32F429I-Discovery/stm32f429i_discovery_lcd.c
• ~/.platformio/packages/framework-stm32cube/f4/Drivers/BSP/STM32F429I-Discovery/stm32f429i_discovery_ts.c

Can those be reused by driver to reduce code size? A first glance, those already have everything and need only very thin wrapper.

[kisvegabor]

Thanks!

I could drop most of the functions. Now tft.c is only 200 lines. I don't have the dev board with me now so I can test it only a little bit later.

[kisvegabor]

I've tested an pushed the tft changes.

[puzrin]

Thanks! I think now drivers looks "simple" and will no scare anyone :).

[kisvegabor]

Looks great! Especially after removing the tft and touchpad directories.