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fix(usb_host): Fix HNP cap on HS port of esp32p4 for HW version < 3

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This commit is contained in:
peter.marcisovsky
2026-04-23 15:31:28 +02:00
parent 6046f36eaa
commit 7b520d0f5c
2 changed files with 25 additions and 0 deletions
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18
components/esp_hal_usb/esp32p4/include/hal/usb_dwc_ll.h
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@@ -1108,6 +1108,24 @@ FORCE_INLINE_ATTR void usb_dwc_ll_enable_bvalid_override(usb_dwc_dev_t *hw, bool
hw->gotgctl_reg.bvalidoven = override;
}
/**
* @brief Software-anchor OTG session comparators for internal UTMI HS host (ESP32-P4).
*
* The HS USB-DWC instance does not expose ID / VBUSVALID / AVALID through the GPIO matrix
* (see `usb_dwc_periph.c`: `otg_signals` is NULL for controller 0). The FS controller uses
* constant matrix inputs in `usb_phy_otg_set_mode()` instead;
* When GUSBCFG.HNPCap is set, the OTG session logic still runs; floating or
* weak internal sense can make the host port unstable. This mirrors the FS host strap values:
* VBUS valid and A-session valid asserted
*/
FORCE_INLINE_ATTR void usb_dwc_ll_gotgctl_anchor_internal_utmi_a_host(usb_dwc_dev_t *hw, bool set_hst_set_hnp_en)
{
hw->gotgctl_reg.vbvalidoven = 1;
hw->gotgctl_reg.vbvalidovval = 1;
hw->gotgctl_reg.avalidoven = 1;
hw->gotgctl_reg.avalidovval = 1;
}
// ---------------------------- Power and Clock Gating Register --------------------------------
FORCE_INLINE_ATTR void usb_dwc_ll_set_stoppclk(usb_dwc_dev_t *hw, bool stop)
{

7
components/esp_hal_usb/usb_dwc_hal.c
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@@ -147,6 +147,13 @@ static void set_defaults(usb_dwc_hal_context_t *hal)
usb_dwc_ll_gahbcfg_en_global_intr(hal->dev); //Enable interrupt signal
//Enable host mode
usb_dwc_ll_gusbcfg_force_host_mode(hal->dev);
#if SOC_IS(ESP32P4)
if (hnp_cap && hal->constant_config.hsphy_type != 0 && !ESP_CHIP_REV_ABOVE(efuse_hal_chip_revision(), 300)) {
// ESP32-P4 HW rev < 3.0, HS DWC + UTMI: no GPIO-matrix OTG sense for this instance; when HNPCap is enabled, anchor the A-host session
usb_dwc_ll_gotgctl_anchor_internal_utmi_a_host(hal->dev, true);
}
#endif // SOC_IS(ESP32P4)
}
void usb_dwc_hal_init(usb_dwc_hal_context_t *hal, int port_id)