submodule sync

.gitignore

@@ -84,3 +84,4 @@ cmake-build-*
 /main.flash.map
 /disassembly.lst
 /main.ram.map
+build/*

.gitmodules

@@ -1,3 +1,3 @@
 [submodule "User"]
 	path = User
-	url = git@github.com:MightyPork/gex-core
+	url = git@github.com:gexpander/gex-core

CMakeLists.txt

@@ -18,7 +18,7 @@ add_definitions(
         -DVERBOSE_HARDFAULT=1
         -DUSE_STACK_MONITOR=1
         -DUSE_DEBUG_UART=1
-        -DGEX_PLAT_F072_DISCOVERY
+        -DGEX_PLAT_F072_HUB
         -DHAL_TSC_MODULE_ENABLED
 )
 

Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_pcd.c

@@ -70,24 +70,12 @@
   */
 
 /* Includes ------------------------------------------------------------------*/
-#include <utils/hexdump.h>
 #include "stm32f0xx_hal.h"
-#include "stdbool.h"
 
 /** @addtogroup STM32F0xx_HAL_Driver
   * @{
   */
 
-static inline void dbgShowTog(PCD_HandleTypeDef *hpcd, bool strobe)
-{
-    PCD_EPTypeDef *ep = &hpcd->IN_ep[2];
-    
-    uint32_t v = (GPIOB->ODR & ~0b111);
-    if ((PCD_GET_ENDPOINT(hpcd->Instance, ep->num)& USB_EP_DTOG_TX) == USB_EP_DTOG_TX) v |= 1;
-    if ((PCD_GET_ENDPOINT(hpcd->Instance, ep->num)& USB_EP_DTOG_RX) == USB_EP_DTOG_RX) v |= 2;
-    GPIOB->ODR = v;
-}
-
 #ifdef HAL_PCD_MODULE_ENABLED
 
 #if defined(STM32F042x6) || defined(STM32F048xx) || defined(STM32F072xB) || defined(STM32F078xx) || defined(STM32F070xB)|| defined(STM32F070x6)
@@ -750,16 +738,12 @@ HAL_StatusTypeDef HAL_PCD_EP_Open(PCD_HandleTypeDef *hpcd, uint8_t ep_addr, uint
       /* Clear the data toggle bits for the endpoint IN/OUT*/
       PCD_CLEAR_RX_DTOG(hpcd->Instance, ep->num)
       PCD_CLEAR_TX_DTOG(hpcd->Instance, ep->num)
-
       PCD_RX_DTOG(hpcd->Instance, ep->num);
-
       /* Configure DISABLE status for the Endpoint*/
       PCD_SET_EP_TX_STATUS(hpcd->Instance, ep->num, USB_EP_TX_DIS)
       PCD_SET_EP_RX_STATUS(hpcd->Instance, ep->num, USB_EP_RX_DIS)
     }
-  }
-
-    dbgShowTog(hpcd, false);
+  } 
   
   __HAL_UNLOCK(hpcd);   
   return ret;
@@ -919,12 +903,12 @@ HAL_StatusTypeDef HAL_PCD_EP_Transmit(PCD_HandleTypeDef *hpcd, uint8_t ep_addr,
   ep->xfer_count = 0U;
   ep->is_in = 1U;
   ep->num = ep_addr & 0x7FU;
-
+  
   /*Multi packet transfer*/
   if (ep->xfer_len > ep->maxpacket)
   {
     len=ep->maxpacket;
-    ep->xfer_len-=len;
+    ep->xfer_len-=len; 
   }
   else
   {  
@@ -941,25 +925,23 @@ HAL_StatusTypeDef HAL_PCD_EP_Transmit(PCD_HandleTypeDef *hpcd, uint8_t ep_addr,
   else
   {
     /*Write the data to the USB endpoint*/
-    if ((PCD_GET_ENDPOINT(hpcd->Instance, ep->num)& USB_EP_DTOG_RX) == USB_EP_DTOG_RX)
+    if ((PCD_GET_ENDPOINT(hpcd->Instance, ep->num)& USB_EP_DTOG_TX) == USB_EP_DTOG_TX)
     {
-        /*Set the Double buffer counter for pmabuffer0*/
-        PCD_SET_EP_DBUF0_CNT(hpcd->Instance, ep->num, ep->is_in, len)
-        pmabuffer = ep->pmaaddr0;
+      /*Set the Double buffer counter for pmabuffer1*/
+      PCD_SET_EP_DBUF1_CNT(hpcd->Instance, ep->num, ep->is_in, len)
+      pmabuffer = ep->pmaaddr1;
     }
     else
     {
-        /*Set the Double buffer counter for pmabuffer1*/
-        PCD_SET_EP_DBUF1_CNT(hpcd->Instance, ep->num, ep->is_in, len)
-        pmabuffer = ep->pmaaddr1;
+      /*Set the Double buffer counter for pmabuffer0*/
+      PCD_SET_EP_DBUF0_CNT(hpcd->Instance, ep->num, ep->is_in, len)
+      pmabuffer = ep->pmaaddr0;
     }
 
-    PCD_WritePMA(hpcd->Instance, ep->xfer_buff, pmabuffer, (uint16_t) len);
+    PCD_WritePMA(hpcd->Instance, ep->xfer_buff, pmabuffer, len);
     PCD_FreeUserBuffer(hpcd->Instance, ep->num, ep->is_in)
   }
 
-  dbgShowTog(hpcd, false);
-
   PCD_SET_EP_TX_STATUS(hpcd->Instance, ep->num, USB_EP_TX_VALID)
      
   return HAL_OK;
@@ -1139,6 +1121,8 @@ PCD_StateTypeDef HAL_PCD_GetState(PCD_HandleTypeDef *hpcd)
   * @}
   */
 
+#pragma GCC push_options //GEX addition
+#pragma GCC optimize ("O2")
 /** @addtogroup PCD_Private_Functions
   * @{
   */
@@ -1197,6 +1181,7 @@ void PCD_ReadPMA(USB_TypeDef  *USBx, uint8_t *pbUsrBuf, uint16_t wPMABufAddr, ui
     *pbUsrBuf++ = ((temp >> 0) & 0xFF);
   }
 }
+#pragma GCC pop_options //GEX addition
 
 /**
   * @brief  This function handles PCD Endpoint interrupt request.
@@ -1210,14 +1195,10 @@ static HAL_StatusTypeDef PCD_EP_ISR_Handler(PCD_HandleTypeDef *hpcd)
   uint8_t EPindex;
   __IO uint16_t wIstr;  
   __IO uint16_t wEPVal = 0U;
-
-    GPIOB->ODR |= 4;
-    for(volatile i=0;i<20;i++);
-    GPIOB->ODR &= ~4;
+  
   /* stay in loop while pending interrupts */
   while (((wIstr = hpcd->Instance->ISTR) & USB_ISTR_CTR) != 0U)
   {
-
     /* extract highest priority endpoint number */
     EPindex = (uint8_t)(wIstr & USB_ISTR_EP_ID);
     
@@ -1357,19 +1338,15 @@ static HAL_StatusTypeDef PCD_EP_ISR_Handler(PCD_HandleTypeDef *hpcd)
         
         /* clear int flag */
         PCD_CLEAR_TX_EP_CTR(hpcd->Instance, EPindex);
-
-          // This function is full of strange code that causes the double buffered mode to not work
-#define WANT_HAL_BUGS 0
-
-#if WANT_HAL_BUGS
-          /* IN double Buffering*/
+        
+        /* IN double Buffering*/
         if (ep->doublebuffer == 0U)
         {
           ep->xfer_count = PCD_GET_EP_TX_CNT(hpcd->Instance, ep->num);
-          if (ep->xfer_count != 0)
-          {
-            PCD_WritePMA(hpcd->Instance, ep->xfer_buff, ep->pmaadress, ep->xfer_count);
-          }
+//          if (ep->xfer_count != 0)
+//          {
+//            PCD_WritePMA(hpcd->Instance, ep->xfer_buff, ep->pmaadress, ep->xfer_count); // GEX FIX
+//          }
         }
         else
         {
@@ -1391,50 +1368,13 @@ static HAL_StatusTypeDef PCD_EP_ISR_Handler(PCD_HandleTypeDef *hpcd)
               PCD_WritePMA(hpcd->Instance, ep->xfer_buff, ep->pmaaddr1, ep->xfer_count);
             }
           }
-          PCD_FreeUserBuffer(hpcd->Instance, ep->num, PCD_EP_DBUF_IN)
+          PCD_FreeUserBuffer(hpcd->Instance, ep->num, PCD_EP_DBUF_IN) 
         }
-
         /*multi-packet on the NON control IN endpoint*/
-        ep->xfer_count = PCD_GET_EP_TX_CNT(hpcd->Instance, ep->num);
-
-#else
-          uint8_t tmpbuf[64];
-        /* IN double Buffering*/
-        if (ep->doublebuffer == 0U)
-        {
-          ep->xfer_count = PCD_GET_EP_TX_CNT(hpcd->Instance, ep->num);
-        }
-        else
-        {
-          // NOTE: DTOG is inverted by the device at the end of a transaction
-
-          if ((PCD_GET_ENDPOINT(hpcd->Instance, ep->num)& USB_EP_DTOG_TX) == USB_EP_DTOG_TX)
-          {
-            /*read from endpoint BUF0Addr buffer*/
-            ep->xfer_count = PCD_GET_EP_DBUF0_CNT(hpcd->Instance, ep->num);
-
-//              PCD_ReadPMA(hpcd->Instance, tmpbuf, ep->pmaaddr0, ep->xfer_count);
-//              hexDump("buf0", tmpbuf, ep->xfer_count);
-          }
-          else
-          {
-            /*read from endpoint BUF1Addr buffer*/
-            ep->xfer_count = PCD_GET_EP_DBUF1_CNT(hpcd->Instance, ep->num);
-
-//              PCD_ReadPMA(hpcd->Instance, tmpbuf, ep->pmaaddr1, ep->xfer_count);
-//              hexDump("buf1", tmpbuf, ep->xfer_count);
-          }
-        }
-#endif
-
-//        dbg("ISR: ep %02x Xferd %db, remain %d", ep->num, ep->xfer_count, ep->xfer_len);
-
+//        ep->xfer_count = PCD_GET_EP_TX_CNT(hpcd->Instance, ep->num); // GEX FIX
         ep->xfer_buff+=ep->xfer_count;
-
-
-        if(ep->num==2)  dbgShowTog(hpcd, true);
-
-        /* Zero Length Packet? <- what? */
+       
+        /* Zero Length Packet? */
         if (ep->xfer_len == 0U)
         {
           /* TX COMPLETE */
@@ -1442,7 +1382,6 @@ static HAL_StatusTypeDef PCD_EP_ISR_Handler(PCD_HandleTypeDef *hpcd)
         }
         else
         {
-          trap("multipart!");
           HAL_PCD_EP_Transmit(hpcd, ep->num, ep->xfer_buff, ep->xfer_len);
         }
       } 

Inc/stm32f0xx_hal_conf.h

@@ -43,7 +43,7 @@
 #include "main.h"
 /* Exported types ------------------------------------------------------------*/
 /* Exported constants --------------------------------------------------------*/
-#define USBD_NUM_ENDPOINTS 4
+#define USBD_NUM_ENDPOINTS 3
 
 /* ########################## Module Selection ############################## */
 /**

Makefile

@@ -15,7 +15,8 @@ DISABLE_MSC   := 0
 CDC_LOOPBACK_TEST := 0
 
 include User/gex.mk
-GEX_PLAT=F072_DISCOVERY
+GEX_PLAT=F072_HUB
+#GEX_PLAT=F072_DISCOVERY
 
 ######################################
 # target
@@ -242,6 +243,14 @@ flash: $(BUILD_DIR)/$(TARGET).bin
 	@printf "  FLASH  $<\n"
 	@st-flash write $< 0x8000000
 
+$(BUILD_DIR)/$(TARGET).dfu: $(BUILD_DIR)/$(TARGET).hex
+	@printf "  DFU-GEN  $<\n"
+	dfu-convert -i $< $@
+
+dfu: $(BUILD_DIR)/$(TARGET).dfu
+	@printf "  DFU UPLOAD  $<\n"
+	dfu-util -a 0 -D $<
+
 patch:
 	@./cubepatch.sh
 

Src/main.c

@@ -47,10 +47,10 @@
   */
 
 /* Includes ------------------------------------------------------------------*/
-#include <stm32f0xx_ll_gpio.h>
 #include "main.h"
 #include "stm32f0xx_hal.h"
 #include "cmsis_os.h"
+#include <stdbool.h>
 
 /* USER CODE BEGIN Includes */
 #include "gex_hooks.h"
@@ -150,23 +150,50 @@ void SystemClock_Config(void)
     _Error_Handler(__FILE__, __LINE__);
   }
 #else
+  volatile uint32_t counter;
+
   /* Set FLASH latency */
   LL_FLASH_SetLatency(LL_FLASH_LATENCY_1);
 
+#if !PLAT_FULL_XTAL
   LL_RCC_HSE_EnableBypass();
+#endif
+
   LL_RCC_HSE_Enable();
-  while(LL_RCC_HSE_IsReady() != 1) {}
+  counter = 0;
+  while(LL_RCC_HSE_IsReady() != 1 && counter < 10000) {
+    counter++;
+  }
 
-  /* Main PLL configuration and activation */
-  LL_RCC_PLL_ConfigDomain_SYS(LL_RCC_PLLSOURCE_HSE, LL_RCC_PLL_MUL_6, LL_RCC_PREDIV_DIV_1);
+  bool has_pll = 0;
+  if (LL_RCC_HSE_IsReady() == 0) {
 
-  LL_RCC_PLL_Enable();
-  while(LL_RCC_PLL_IsReady() != 1) {}
+    // Looks like HSE xtal doesn't work - use HSI48
+    LL_RCC_HSI48_Enable();
+    while(LL_RCC_HSI48_IsReady() != 1) {}
 
-  /* Sysclk activation on the main PLL */
-  LL_RCC_SetAHBPrescaler(LL_RCC_SYSCLK_DIV_1);
-  LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_PLL);
-  while(LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_PLL) {}
+    LL_CRS_EnableAutoTrimming(); // crystalless USB
+
+    LL_RCC_SetAHBPrescaler(LL_RCC_SYSCLK_DIV_1);
+    LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_HSI48);
+    while(LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_HSI48) {}
+
+  } else {
+    // external 8 MHz xtal
+
+    /* Main PLL configuration and activation */
+    LL_RCC_PLL_ConfigDomain_SYS(LL_RCC_PLLSOURCE_HSE, LL_RCC_PLL_MUL_6, LL_RCC_PREDIV_DIV_1);
+
+    LL_RCC_PLL_Enable();
+    while(LL_RCC_PLL_IsReady() != 1) {}
+
+    /* Sysclk activation on the main PLL */
+    LL_RCC_SetAHBPrescaler(LL_RCC_SYSCLK_DIV_1);
+    LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_PLL);
+    while(LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_PLL) {}
+
+      has_pll = true;
+  }
 
   /* Set APB1 prescaler */
   LL_RCC_SetAPB1Prescaler(LL_RCC_APB1_DIV_1);
@@ -175,12 +202,12 @@ void SystemClock_Config(void)
   LL_SetSystemCoreClock(48000000);
 #endif
 
+  // TODO this can be rewritten using LL while greatly reducing code size
 
     /**Initializes the CPU, AHB and APB busses clocks 
     */
-  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
-                              |RCC_CLOCKTYPE_PCLK1;
-  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
+  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK|RCC_CLOCKTYPE_PCLK1;
+  RCC_ClkInitStruct.SYSCLKSource = has_pll ? RCC_SYSCLKSOURCE_PLLCLK : RCC_SYSCLKSOURCE_HSI48;
   RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
   RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;