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update(port/dwc2/usb_hc_dwc2): reset channel with dwc2_halt in deinit

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Signed-off-by: sakumisu <1203593632@qq.com>
This commit is contained in:
sakumisu
2025-12-01 20:30:18 +08:00
parent e257e6ce5c
commit 7098d42b87
1 changed files with 2 additions and 22 deletions
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24
port/dwc2/usb_hc_dwc2.c
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@@ -797,7 +797,6 @@ int usb_hc_init(struct usbh_bus *bus)
int usb_hc_deinit(struct usbh_bus *bus)
{
volatile uint32_t count = 0U;
uint32_t value;
USB_OTG_GLB->GAHBCFG &= ~USB_OTG_GAHBCFG_GINT;
@@ -805,27 +804,8 @@ int usb_hc_deinit(struct usbh_bus *bus)
dwc2_flush_rxfifo(bus);
/* Flush out any leftover queued requests. */
for (uint32_t i = 0U; i < g_dwc2_hcd[bus->hcd.hcd_id].hw_params.host_channels; i++) {
value = USB_OTG_HC(i)->HCCHAR;
value |= USB_OTG_HCCHAR_CHDIS;
value &= ~USB_OTG_HCCHAR_CHENA;
value &= ~USB_OTG_HCCHAR_EPDIR;
USB_OTG_HC(i)->HCCHAR = value;
}
/* Halt all channels to put them into a known state. */
for (uint32_t i = 0U; i < g_dwc2_hcd[bus->hcd.hcd_id].hw_params.host_channels; i++) {
value = USB_OTG_HC(i)->HCCHAR;
value |= USB_OTG_HCCHAR_CHDIS;
value |= USB_OTG_HCCHAR_CHENA;
value &= ~USB_OTG_HCCHAR_EPDIR;
USB_OTG_HC(i)->HCCHAR = value;
do {
if (++count > 1000U) {
return -USB_ERR_TIMEOUT;
}
} while ((USB_OTG_HC(i)->HCCHAR & USB_OTG_HCCHAR_CHENA) == USB_OTG_HCCHAR_CHENA);
for (uint8_t chidx = 0; chidx < g_dwc2_hcd[bus->hcd.hcd_id].hw_params.host_channels; chidx++) {
dwc2_halt(bus, chidx);
}
/* Disable all interrupts. */