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drivers/usbdev_synopsys_dwc2: Set even/odd flag on isochronous transfers

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This commit is contained in:
Koen Zandberg 2023-04-17 15:40:15 +02:00
parent 7b2db7bf2b
commit 242f9b524a
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GPG Key ID: BA1718B37D79F51C
1 changed files with 14 additions and 0 deletions
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14
drivers/usbdev_synopsys_dwc2/usbdev_synopsys_dwc2.c
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@ -1338,7 +1338,14 @@ static int _usbdev_ep_xmit(usbdev_ep_t *ep, uint8_t *buf, size_t len)
_device_regs(conf)->DAINTMSK |= 1 << ep->num;
_device_regs(conf)->DIEPEMPMSK |= 1 << ep->num;
uint32_t eonum = 0;
if (ep->type == USB_EP_TYPE_ISOCHRONOUS) {
bool odd_frame = _device_regs(conf)->DSTS & (1 << 8);
eonum = !odd_frame ? USB_OTG_DIEPCTL_SD0PID_SEVNFRM : USB_OTG_DIEPCTL_SODDFRM;
}
_in_regs(conf, ep->num)->DIEPCTL |= USB_OTG_DIEPCTL_CNAK |
eonum |
USB_OTG_DIEPCTL_EPENA;
if (len > 0 && !_uses_dma(conf)) {
@ -1355,11 +1362,17 @@ static int _usbdev_ep_xmit(usbdev_ep_t *ep, uint8_t *buf, size_t len)
}
}
else {
/* Abort when the endpoint is not active, prevents hangs,
* could be an assert in the future maybe */
if (!(_out_regs(conf, ep->num)->DOEPCTL & USB_OTG_DOEPCTL_USBAEP)) {
return -1;
}
uint32_t eonum = 0;
if (ep->type == USB_EP_TYPE_ISOCHRONOUS) {
bool odd_frame = _device_regs(conf)->DSTS & (1 << 8);
eonum = odd_frame ? USB_OTG_DOEPCTL_SD0PID_SEVNFRM : USB_OTG_DOEPCTL_SODDFRM;
}
if (_uses_dma(conf)) {
_out_regs(conf, ep->num)->DOEPDMA = (uint32_t)(intptr_t)buf;
@ -1382,6 +1395,7 @@ static int _usbdev_ep_xmit(usbdev_ep_t *ep, uint8_t *buf, size_t len)
_out_regs(conf, ep->num)->DOEPTSIZ = doeptsiz;
_out_regs(conf, ep->num)->DOEPCTL |= USB_OTG_DOEPCTL_CNAK |
USB_OTG_DOEPCTL_EPENA |
eonum |
_type_to_reg(ep->type);
}