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fix(port/ehci): clear iaad status before set

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Signed-off-by: sakumisu <1203593632@qq.com>
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sakumisu
2025-09-27 22:18:10 +08:00
parent bfb55eeb36
commit c25171d69f
1 changed files with 2 additions and 0 deletions
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2
port/ehci/usb_hc_ehci.c
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@@ -1337,6 +1337,7 @@ int usbh_kill_urb(struct usbh_urb *urb)
EHCI_HCOR->usbcmd |= (EHCI_USBCMD_PSEN | EHCI_USBCMD_ASEN); EHCI_HCOR->usbcmd |= (EHCI_USBCMD_PSEN | EHCI_USBCMD_ASEN);
qh = (struct ehci_qh_hw *)urb->hcpriv; qh = (struct ehci_qh_hw *)urb->hcpriv;
qh->remove_in_iaad = 0;
urb->errorcode = -USB_ERR_SHUTDOWN; urb->errorcode = -USB_ERR_SHUTDOWN;
if (urb->timeout) { if (urb->timeout) {
@@ -1347,6 +1348,7 @@ int usbh_kill_urb(struct usbh_urb *urb)
if (remove_in_iaad) { if (remove_in_iaad) {
volatile uint32_t timeout = 0; volatile uint32_t timeout = 0;
EHCI_HCOR->usbsts = EHCI_USBSTS_IAA;
EHCI_HCOR->usbcmd |= EHCI_USBCMD_IAAD; EHCI_HCOR->usbcmd |= EHCI_USBCMD_IAAD;
while (!(EHCI_HCOR->usbsts & EHCI_USBSTS_IAA)) { while (!(EHCI_HCOR->usbsts & EHCI_USBSTS_IAA)) {
timeout++; timeout++;