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Fixed bug where with some devices, the TU_ASSERT inserted with this commit gets triggered for ISOCHRONOUS endpoints. It is necessary for those endpoints to set the NUM_BLOCK and BLSIZE for the receiving buffer in both, USB_COUNTn_TX and USB_COUNTn_RX. Despite the datasheet showing those fields only for the USB_COUNTn_RX register

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This commit is contained in:
Simon Kueppers
2023-01-05 14:39:23 +01:00
committed by Mengsk
parent 69475cd1bf
commit d6b612257e
2 changed files with 21 additions and 3 deletions
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13
src/portable/st/stm32_fsdev/dcd_stm32_fsdev.c
View File

@@ -562,6 +562,8 @@ static void dcd_ep_ctr_rx_handler(uint32_t wIstr)
count = pcd_get_ep_rx_cnt(USB, EPindex);
}
TU_ASSERT(count <= xfer->max_packet_size, /**/);
// Clear RX CTR interrupt flag
if(ep_addr != 0u)
{
@@ -599,9 +601,14 @@ static void dcd_ep_ctr_rx_handler(uint32_t wIstr)
} else {
pcd_set_ep_rx_bufsize(USB, EPindex,remaining);
}
if (!((wEPRegVal & USB_EP_TYPE_MASK) == USB_EP_ISOCHRONOUS)) {
/* Set endpoint active again for receiving more data.
* Note that isochronous endpoints stay active always */
pcd_set_ep_rx_status(USB, EPindex, USB_EP_RX_VALID);
}
}
}
// For EP0, prepare to receive another SETUP packet.
// Clear CTR last so that a new packet does not overwrite the packing being read.
@@ -881,7 +888,8 @@ bool dcd_edpt_open (uint8_t rhport, tusb_desc_endpoint_t const * p_endpoint_desc
(void)rhport;
uint8_t const epnum = dcd_ep_alloc(p_endpoint_desc->bEndpointAddress, p_endpoint_desc->bmAttributes.xfer);
uint8_t const dir = tu_edpt_dir(p_endpoint_desc->bEndpointAddress);
const uint16_t buffer_size = pcd_aligned_buffer_size(tu_edpt_packet_size(p_endpoint_desc));
const uint16_t packet_size = tu_edpt_packet_size(p_endpoint_desc);
const uint16_t buffer_size = pcd_aligned_buffer_size(packet_size);
uint16_t pma_addr;
uint32_t wType;
@@ -921,6 +929,7 @@ bool dcd_edpt_open (uint8_t rhport, tusb_desc_endpoint_t const * p_endpoint_desc
if( (dir == TUSB_DIR_IN) || (wType == USB_EP_ISOCHRONOUS) )
{
*pcd_ep_tx_address_ptr(USB, epnum) = pma_addr;
pcd_set_ep_tx_bufsize(USB, epnum, buffer_size);
pcd_clear_tx_dtog(USB, epnum);
}
@@ -948,7 +957,7 @@ bool dcd_edpt_open (uint8_t rhport, tusb_desc_endpoint_t const * p_endpoint_desc
}
}
xfer_ctl_ptr(p_endpoint_desc->bEndpointAddress)->max_packet_size = buffer_size;
xfer_ctl_ptr(p_endpoint_desc->bEndpointAddress)->max_packet_size = packet_size;
xfer_ctl_ptr(p_endpoint_desc->bEndpointAddress)->epnum = epnum;
return true;

9
src/portable/st/stm32_fsdev/dcd_stm32_fsdev_pvt_st.h
View File

@@ -281,6 +281,13 @@ TU_ATTR_ALWAYS_INLINE static inline void pcd_set_ep_rx_cnt(USB_TypeDef * USBx,
*reg = (uint16_t) (*reg & (uint16_t) ~0x3FFU) | (wCount & 0x3FFU);
}
TU_ATTR_ALWAYS_INLINE static inline void pcd_set_ep_tx_bufsize(USB_TypeDef * USBx, uint32_t bEpNum, uint32_t wCount)
{
__IO uint16_t *pdwReg = pcd_ep_tx_cnt_ptr((USBx),(bEpNum));
wCount = pcd_aligned_buffer_size(wCount);
pcd_set_ep_cnt_reg(pdwReg, wCount);
}
TU_ATTR_ALWAYS_INLINE static inline void pcd_set_ep_rx_bufsize(USB_TypeDef * USBx, uint32_t bEpNum, uint32_t wCount)
{
__IO uint16_t *pdwReg = pcd_ep_rx_cnt_ptr((USBx),(bEpNum));
@@ -310,6 +317,7 @@ TU_ATTR_ALWAYS_INLINE static inline void pcd_set_ep_tx_status(USB_TypeDef * USBx
{
regVal ^= USB_EPTX_DTOG2;
}
regVal |= USB_EP_CTR_RX|USB_EP_CTR_TX;
pcd_set_endpoint(USBx, bEpNum, regVal);
} /* pcd_set_ep_tx_status */
@@ -337,6 +345,7 @@ TU_ATTR_ALWAYS_INLINE static inline void pcd_set_ep_rx_status(USB_TypeDef * USBx
{
regVal ^= USB_EPRX_DTOG2;
}
regVal |= USB_EP_CTR_RX|USB_EP_CTR_TX;
pcd_set_endpoint(USBx, bEpNum, regVal);
} /* pcd_set_ep_rx_status */