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refactor(esp_hal_usb): Enable HNP on HNP-capable controllers

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This commit is contained in:
Tomas Rezucha
2026-04-22 10:21:59 +02:00
parent 6e0878131e
commit d02062f914
6 changed files with 173 additions and 32 deletions
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components/esp_hal_usb/usb_dwc_hal.c
+8 -2
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@@ -125,9 +125,15 @@ static void set_defaults(usb_dwc_hal_context_t *hal)
usb_dwc_ll_set_stoppclk(hal->dev, false);
#endif // SOC_IS(ESP32P4) || SOC_IS(ESP32S31)
usb_dwc_ll_gahbcfg_set_hbstlen(hal->dev, hbstlen); //Set AHB burst mode
//GUSBCFG register
usb_dwc_ll_gusbcfg_dis_hnp_cap(hal->dev); //Disable HNP
usb_dwc_ll_gusbcfg_dis_srp_cap(hal->dev); //Disable SRP
bool hnp_cap, srp_cap;
usb_dwc_ll_ghwcfg_get_hnp_srp_cap(hal->dev, &hnp_cap, &srp_cap);
// On targets where the USB controller is HNP capable, the data lines pull-downs are controlled by the USB controller.
// Enabling HNP capability will also enable the data line pull-downs in deep-sleep mode eliminating leakage current.
usb_dwc_ll_gusbcfg_set_hnp_cap(hal->dev, hnp_cap);
usb_dwc_ll_gusbcfg_set_srp_cap(hal->dev, false); //Disable SRP
// If this USB-DWC supports HS PHY, use it
if (hal->constant_config.hsphy_type != 0) {