Add HT32 support to core (#14388)

* tmk_core: temporary fix to allow HT32 based keyboards to work without patched ChibiOS-contrib (AnnePro2)

* HT32: add spi support

Add persistent led support with eeprom (#9)

* adding HT32 support to chibios SPI master driver

update spi driver, fix bad merging with master

* HT32: fix formatting

HT32: Fix formatting: tmk_core/protocol/chibios/usb_main.c

Co-authored-by: Drashna Jaelre <drashna@live.com>

* HT32: Apply suggestions from fauxpark's code review

Co-authored-by: Ryan <fauxpark@gmail.com>

* HT32: update spi driver

* ht32: apply code review suggestions, remove old workaround

Co-authored-by: tech2077 <tech2077@gmail.com>
Co-authored-by: Drashna Jaelre <drashna@live.com>
Co-authored-by: Ryan <fauxpark@gmail.com>

1 files changed, 25 insertions, 0 deletions

diff --git a/platforms/chibios/drivers/spi_master.c b/platforms/chibios/drivers/spi_master.c
index f98db6db9..c592369dd 100644
--- a/platforms/chibios/drivers/spi_master.c
+++ b/platforms/chibios/drivers/spi_master.c
@@ -110,6 +110,31 @@ bool spi_start(pin_t slavePin, bool lsbFirst, uint8_t mode, uint16_t divisor) {
             spiConfig.tar0 |= SPIx_CTARn_BR(8);
             break;
     }
+
+#elif defined(HT32)
+    spiConfig.cr0 = SPI_CR0_SELOEN;
+    spiConfig.cr1 = SPI_CR1_MODE | 8;  // 8 bits and in master mode
+
+    if (lsbFirst) {
+        spiConfig.cr1 |= SPI_CR1_FIRSTBIT;
+    }
+
+    switch (mode) {
+        case 0:
+            spiConfig.cr1 |= SPI_CR1_FORMAT_MODE0;
+            break;
+        case 1:
+            spiConfig.cr1 |= SPI_CR1_FORMAT_MODE1;
+            break;
+        case 2:
+            spiConfig.cr1 |= SPI_CR1_FORMAT_MODE2;
+            break;
+        case 3:
+            spiConfig.cr1 |= SPI_CR1_FORMAT_MODE3;
+            break;
+    }
+
+    spiConfig.cpr = (roundedDivisor - 1) >> 1;
 #else
     spiConfig.cr1 = 0;