Merge pull request #448 from adafruit/more-ch32v203-update

update tinyusb to fix ch32v203 race with hub in setup

Author: hathach

src/portable/st/stm32_fsdev/dcd_stm32_fsdev.c

@@ -155,7 +155,7 @@ static uint8_t remoteWakeCountdown; // When wake is requested
 // into the stack.
 static void handle_bus_reset(uint8_t rhport);
 static void dcd_transmit_packet(xfer_ctl_t *xfer, uint16_t ep_ix);
-static bool edpt_xfer(uint8_t rhport, uint8_t ep_num, uint8_t dir);
+static bool edpt_xfer(uint8_t rhport, uint8_t ep_num, tusb_dir_t dir);
 
 // PMA allocation/access
 static uint16_t ep_buf_ptr; ///< Points to first free memory location
@@ -275,7 +275,6 @@ static void handle_bus_reset(uint8_t rhport) {
 // Handle CTR interrupt for the TX/IN direction
 static void handle_ctr_tx(uint32_t ep_id) {
   uint32_t ep_reg = ep_read(ep_id) | USB_EP_CTR_TX | USB_EP_CTR_RX;
-  ep_reg &= USB_EPREG_MASK;
 
   uint8_t const ep_num = ep_reg & USB_EPADDR_FIELD;
   xfer_ctl_t *xfer = xfer_ctl_ptr(ep_num, TUSB_DIR_IN);
@@ -345,12 +344,14 @@ static void handle_ctr_rx(uint32_t ep_id) {
 
   if ((rx_count < xfer->max_packet_size) || (xfer->queued_len >= xfer->total_len)) {
     // all bytes received or short packet
-    dcd_event_xfer_complete(0, ep_num, xfer->queued_len, XFER_RESULT_SUCCESS, true);
 
     // For ch32v203: reset rx bufsize to mps to prevent race condition to cause PMAOVR (occurs with msc write10)
-    // also ch32 seems to unconditionally accept ZLP on EP0 OUT, which can incorrectly use queued_len of previous
-    // transfer. So reset total_len and queued_len to 0.
     btable_set_rx_bufsize(ep_id, BTABLE_BUF_RX, xfer->max_packet_size);
+
+    dcd_event_xfer_complete(0, ep_num, xfer->queued_len, XFER_RESULT_SUCCESS, true);
+
+    // ch32 seems to unconditionally accept ZLP on EP0 OUT, which can incorrectly use queued_len of previous
+    // transfer. So reset total_len and queued_len to 0.
     xfer->total_len = xfer->queued_len = 0;
   } else {
     // Set endpoint active again for receiving more data. Note that isochronous endpoints stay active always
@@ -412,11 +413,6 @@ void dcd_int_handler(uint8_t rhport) {
     FSDEV_REG->ISTR = (fsdev_bus_t)~USB_ISTR_ESOF;
   }
 
-  if (int_status & USB_ISTR_PMAOVR) {
-    TU_BREAKPOINT();
-    FSDEV_REG->ISTR = (fsdev_bus_t)~USB_ISTR_PMAOVR;
-  }
-
   // loop to handle all pending CTR interrupts
   while (FSDEV_REG->ISTR & USB_ISTR_CTR) {
     // skip DIR bit, and use CTR TX/RX instead, since there is chance we have both TX/RX completed in one interrupt
@@ -459,6 +455,11 @@ void dcd_int_handler(uint8_t rhport) {
       handle_ctr_tx(ep_id);
     }
   }
+
+  if (int_status & USB_ISTR_PMAOVR) {
+    TU_BREAKPOINT();
+    FSDEV_REG->ISTR = (fsdev_bus_t)~USB_ISTR_PMAOVR;
+  }
 }
 
 //--------------------------------------------------------------------+
@@ -576,7 +577,7 @@ bool dcd_edpt_open(uint8_t rhport, tusb_desc_endpoint_t const *desc_ep) {
   (void)rhport;
   uint8_t const ep_addr = desc_ep->bEndpointAddress;
   uint8_t const ep_num = tu_edpt_number(ep_addr);
-  uint8_t const dir = tu_edpt_dir(ep_addr);
+  tusb_dir_t const dir = tu_edpt_dir(ep_addr);
   const uint16_t packet_size = tu_edpt_packet_size(desc_ep);
   uint8_t const ep_idx = dcd_ep_alloc(ep_addr, desc_ep->bmAttributes.xfer);
   TU_ASSERT(ep_idx < FSDEV_EP_COUNT);
@@ -649,10 +650,11 @@ bool dcd_edpt_iso_alloc(uint8_t rhport, uint8_t ep_addr, uint16_t largest_packet
 
   /* Create a packet memory buffer area. Enable double buffering for devices with 2048 bytes PMA,
      for smaller devices double buffering occupy too much space. */
-  uint32_t pma_addr = dcd_pma_alloc(largest_packet_size, true);
 #if FSDEV_PMA_SIZE > 1024u
+  uint32_t pma_addr = dcd_pma_alloc(largest_packet_size, true);
   uint16_t pma_addr2 = pma_addr >> 16;
 #else
+  uint32_t pma_addr = dcd_pma_alloc(largest_packet_size, false);
   uint16_t pma_addr2 = pma_addr;
 #endif
 
@@ -669,7 +671,7 @@ bool dcd_edpt_iso_activate(uint8_t rhport, tusb_desc_endpoint_t const *desc_ep)
   (void)rhport;
   uint8_t const ep_addr = desc_ep->bEndpointAddress;
   uint8_t const ep_num = tu_edpt_number(ep_addr);
-  uint8_t const dir = tu_edpt_dir(ep_addr);
+  tusb_dir_t const dir = tu_edpt_dir(ep_addr);
   xfer_ctl_t* xfer = xfer_ctl_ptr(ep_num, dir);
 
   uint8_t const ep_idx = xfer->ep_idx;
@@ -681,7 +683,7 @@ bool dcd_edpt_iso_activate(uint8_t rhport, tusb_desc_endpoint_t const *desc_ep)
   ep_change_status(&ep_reg, TUSB_DIR_IN, EP_STAT_DISABLED);
   ep_change_status(&ep_reg, TUSB_DIR_OUT, EP_STAT_DISABLED);
   ep_change_dtog(&ep_reg, dir, 0);
-  ep_change_dtog(&ep_reg, 1 - dir, 1);
+  ep_change_dtog(&ep_reg, (tusb_dir_t)(1 - dir), 1);
 
   ep_write(ep_idx, ep_reg, true);
 
@@ -692,7 +694,6 @@ bool dcd_edpt_iso_activate(uint8_t rhport, tusb_desc_endpoint_t const *desc_ep)
 static void dcd_transmit_packet(xfer_ctl_t *xfer, uint16_t ep_ix) {
   uint16_t len = tu_min16(xfer->total_len - xfer->queued_len, xfer->max_packet_size);
   uint32_t ep_reg = ep_read(ep_ix) | USB_EP_CTR_TX | USB_EP_CTR_RX; // reserve CTR
-  ep_reg &= USB_EPREG_MASK | EP_STAT_MASK(TUSB_DIR_IN); // only change TX Status, reserve other toggle bits
 
   bool const is_iso = ep_is_iso(ep_reg);
 
@@ -717,10 +718,11 @@ static void dcd_transmit_packet(xfer_ctl_t *xfer, uint16_t ep_ix) {
   if (is_iso) {
     xfer->iso_in_sending = true;
   }
+  ep_reg &= USB_EPREG_MASK | EP_STAT_MASK(TUSB_DIR_IN); // only change TX Status, reserve other toggle bits
   ep_write(ep_ix, ep_reg, true);
 }
 
-static bool edpt_xfer(uint8_t rhport, uint8_t ep_num, uint8_t dir) {
+static bool edpt_xfer(uint8_t rhport, uint8_t ep_num, tusb_dir_t dir) {
   (void) rhport;
 
   xfer_ctl_t *xfer = xfer_ctl_ptr(ep_num, dir);
@@ -750,7 +752,7 @@ static bool edpt_xfer(uint8_t rhport, uint8_t ep_num, uint8_t dir) {
 
 bool dcd_edpt_xfer(uint8_t rhport, uint8_t ep_addr, uint8_t *buffer, uint16_t total_bytes) {
   uint8_t const ep_num = tu_edpt_number(ep_addr);
-  uint8_t const dir = tu_edpt_dir(ep_addr);
+  tusb_dir_t const dir = tu_edpt_dir(ep_addr);
   xfer_ctl_t *xfer = xfer_ctl_ptr(ep_num, dir);
 
   xfer->buffer = buffer;
@@ -763,7 +765,7 @@ bool dcd_edpt_xfer(uint8_t rhport, uint8_t ep_addr, uint8_t *buffer, uint16_t to
 
 bool dcd_edpt_xfer_fifo(uint8_t rhport, uint8_t ep_addr, tu_fifo_t *ff, uint16_t total_bytes) {
   uint8_t const ep_num = tu_edpt_number(ep_addr);
-  uint8_t const dir = tu_edpt_dir(ep_addr);
+  tusb_dir_t const dir = tu_edpt_dir(ep_addr);
   xfer_ctl_t *xfer = xfer_ctl_ptr(ep_num, dir);
 
   xfer->buffer = NULL;
@@ -777,7 +779,7 @@ bool dcd_edpt_xfer_fifo(uint8_t rhport, uint8_t ep_addr, tu_fifo_t *ff, uint16_t
 void dcd_edpt_stall(uint8_t rhport, uint8_t ep_addr) {
   (void)rhport;
   uint8_t const ep_num = tu_edpt_number(ep_addr);
-  uint8_t const dir = tu_edpt_dir(ep_addr);
+  tusb_dir_t const dir = tu_edpt_dir(ep_addr);
   xfer_ctl_t *xfer = xfer_ctl_ptr(ep_num, dir);
   uint8_t const ep_idx = xfer->ep_idx;
 
@@ -792,7 +794,7 @@ void dcd_edpt_clear_stall(uint8_t rhport, uint8_t ep_addr) {
   (void)rhport;
 
   uint8_t const ep_num = tu_edpt_number(ep_addr);
-  uint8_t const dir = tu_edpt_dir(ep_addr);
+  tusb_dir_t const dir = tu_edpt_dir(ep_addr);
   xfer_ctl_t *xfer = xfer_ctl_ptr(ep_num, dir);
   uint8_t const ep_idx = xfer->ep_idx;
 
@@ -806,6 +808,10 @@ void dcd_edpt_clear_stall(uint8_t rhport, uint8_t ep_addr) {
   ep_write(ep_idx, ep_reg, true);
 }
 
+//--------------------------------------------------------------------+
+// PMA read/write
+//--------------------------------------------------------------------+
+
 // Write to packet memory area (PMA) from user memory
 // - Packet memory must be either strictly 16-bit or 32-bit depending on FSDEV_BUS_32BIT
 // - Uses unaligned for RAM (since M0 cannot access unaligned address)

src/portable/st/stm32_fsdev/fsdev_type.h

@@ -285,8 +285,9 @@ TU_ATTR_ALWAYS_INLINE static inline void btable_set_rx_bufsize(uint32_t ep_id, u
   /* Encode into register. When BLSIZE==1, we need to subtract 1 block count */
   uint16_t bl_nb = (blsize << 15) | ((num_block - blsize) << 10);
   if (bl_nb == 0) {
-    // zlp but 0 is invalid value, set num_block to 1 (2 bytes)
-    bl_nb = 1 << 10;
+    // zlp but 0 is invalid value, set blsize to 1 (32 bytes)
+    // Note: lower value can cause PMAOVR on setup with ch32v203
+    bl_nb = 1 << 15;
   }
 
 #ifdef FSDEV_BUS_32BIT