Added ws2812_pwm support for WB32 MCU. (#17142)

Co-authored-by: Joy <chang.li@westberrytech.com>

platforms/chibios/drivers/ws2812_pwm.c

@@ -17,13 +17,25 @@
 #    define WS2812_PWM_CHANNEL 2 // Channel
 #endif
 #ifndef WS2812_PWM_PAL_MODE
-#    define WS2812_PWM_PAL_MODE 2 // DI Pin's alternate function value
+#    if defined(WB32F3G71xx) || defined(WB32FQ95xx)
+#        define WS2812_PWM_PAL_MODE 1 // DI Pin's alternate function value
+#    else
+#        define WS2812_PWM_PAL_MODE 2 // DI Pin's alternate function value
+#    endif
 #endif
 #ifndef WS2812_DMA_STREAM
-#    define WS2812_DMA_STREAM STM32_DMA1_STREAM2 // DMA Stream for TIMx_UP
+#    if defined(WB32F3G71xx) || defined(WB32FQ95xx)
+#        define WS2812_DMA_STREAM WB32_DMA1_STREAM1 // DMA Stream for TIMx_UP
+#    else
+#        define WS2812_DMA_STREAM STM32_DMA1_STREAM2 // DMA Stream for TIMx_UP
+#    endif
 #endif
 #ifndef WS2812_DMA_CHANNEL
-#    define WS2812_DMA_CHANNEL 2 // DMA Channel for TIMx_UP
+#    if defined(WB32F3G71xx) || defined(WB32FQ95xx)
+#        define WS2812_DMA_CHANNEL WB32_DMAC_HWHIF_TIM2_UP // DMA Channel for TIM2_UP
+#    else
+#        define WS2812_DMA_CHANNEL 2 // DMA Channel for TIMx_UP
+#    endif
 #endif
 #if (STM32_DMA_SUPPORTS_DMAMUX == TRUE) && !defined(WS2812_DMAMUX_ID)
 #    error "please consult your MCU's datasheet and specify in your config.h: #define WS2812_DMAMUX_ID STM32_DMAMUX1_TIM?_UP"
@@ -284,11 +296,18 @@ void ws2812_init(void) {
 
     // Configure DMA
     // dmaInit(); // Joe added this
+#if defined(WB32F3G71xx) || defined(WB32FQ95xx)
+    dmaStreamAlloc(WS2812_DMA_STREAM - WB32_DMA_STREAM(0), 10, NULL, NULL);
+    dmaStreamSetSource(WS2812_DMA_STREAM, ws2812_frame_buffer);
+    dmaStreamSetDestination(WS2812_DMA_STREAM, &(WS2812_PWM_DRIVER.tim->CCR[WS2812_PWM_CHANNEL - 1])); // Ziel ist der An-Zeit im Cap-Comp-Register
+    dmaStreamSetMode(WS2812_DMA_STREAM, WB32_DMA_CHCFG_HWHIF(WS2812_DMA_CHANNEL) | WB32_DMA_CHCFG_DIR_M2P | WB32_DMA_CHCFG_PSIZE_WORD | WB32_DMA_CHCFG_MSIZE_WORD | WB32_DMA_CHCFG_MINC | WB32_DMA_CHCFG_CIRC | WB32_DMA_CHCFG_TCIE | WB32_DMA_CHCFG_PL(3));
+#else
     dmaStreamAlloc(WS2812_DMA_STREAM - STM32_DMA_STREAM(0), 10, NULL, NULL);
     dmaStreamSetPeripheral(WS2812_DMA_STREAM, &(WS2812_PWM_DRIVER.tim->CCR[WS2812_PWM_CHANNEL - 1])); // Ziel ist der An-Zeit im Cap-Comp-Register
     dmaStreamSetMemory0(WS2812_DMA_STREAM, ws2812_frame_buffer);
-    dmaStreamSetTransactionSize(WS2812_DMA_STREAM, WS2812_BIT_N);
     dmaStreamSetMode(WS2812_DMA_STREAM, STM32_DMA_CR_CHSEL(WS2812_DMA_CHANNEL) | STM32_DMA_CR_DIR_M2P | STM32_DMA_CR_PSIZE_WORD | STM32_DMA_CR_MSIZE_WORD | STM32_DMA_CR_MINC | STM32_DMA_CR_CIRC | STM32_DMA_CR_PL(3));
+#endif
+    dmaStreamSetTransactionSize(WS2812_DMA_STREAM, WS2812_BIT_N);
     // M2P: Memory 2 Periph; PL: Priority Level
 
 #if (STM32_DMA_SUPPORTS_DMAMUX == TRUE)