Add persistent led support with eeprom

[tech2077]

A few things that needed to be added to get persistent led support:

• Add support for HT32 spi to qmk spi_master driver
• Add support for the W25X20CL SPI eeprom
• Add makefile flags for eeprom feature
• Add an example keymap using eeprom features
• Changed behavior of led key handling to pass-through to user keymaps for eeprom behavior

[Codetector1374]

It seems like this does belong to lld. Maybe I am understanding this code wrong. But if I recall correctly the stm32 lld SPI driver does something quite close. Basically you can call the SPI to shift in / out data and it will just do it. ( ofc you need to give it configuration and tell it to startSpi() or something like that On Aug 23, 2020, 3:37 AM -0400, tech2077 notifications@github.com, wrote:

@tech2077 commented on this pull request. In drivers/chibios/spi_master.c:

@@ -32,6 +32,10 @@ attribute((weak)) void spi_init(void) { palSetPadMode(PAL_PORT(SPI_SCK_PIN), PAL_PAD(SPI_SCK_PIN), PAL_MODE_STM32_ALTERNATE_PUSHPULL); palSetPadMode(PAL_PORT(SPI_MOSI_PIN), PAL_PAD(SPI_MOSI_PIN), PAL_MODE_STM32_ALTERNATE_PUSHPULL); palSetPadMode(PAL_PORT(SPI_MISO_PIN), PAL_PAD(SPI_MISO_PIN), PAL_MODE_STM32_ALTERNATE_PUSHPULL); +#elif defined(HT32_SPI_USE_SPI1) || defined(HT32_SPI_USE_SPI2) Yeah, I don't like how QMK does it, the main reason I did it this was is in the case we ever try to merge into mainline QMK. Where in ChibiOS would I put this, it feels too setup specific for lld, and to low level for chibios main hal. Usually I see gpio mode config done outside peripheral libraries. — You are receiving this because you commented. Reply to this email directly, view it on GitHub, or unsubscribe.

[tech2077]

I took a look at the lld for the STM32 SPI driver and they don't seem to setup the gpio mode anywhere. All this code does is enable the GPIO, it's not actually related to the SPI peripheral directly. Also the SPI HAL driver expects the config to be setup on the user layer before being passed to the HAL and lld layers.

I think we should keep it here, as ugly as it is here I think it's better than introducing GPIO configuration into any of the more "pure" drivers.

[Codetector1374]

Okay sounds good to me. I guess this is a very valid point. <3 thanks for you work. On Aug 23, 2020, 9:13 PM -0400, tech2077 notifications@github.com, wrote:

I took a look at the lld for the STM32 SPI driver and they don't seem to setup the gpio mode anywhere. All this code does is enable the GPIO, it's not actually related to the SPI peripheral directly. Also the SPI HAL driver expects the config to be setup on the user layer before being passed to the HAL and lld layers. I think we should keep it here, as ugly as it is here I think it's better than introducing GPIO configuration into any of the more "pure" drivers. — You are receiving this because you commented. Reply to this email directly, view it on GitHub, or unsubscribe.