usbh_ehci_hw_get_capabilities

#include <RTL.h>
#include <rl_usb.h>

void usbh_ehci_hw_get_capabilities (
  U8            ctrl,
  USBH_HCI_CAP *cap
);

The usbh_ehci_hw_get_capabilities function is used for reading capabilities of the EHCI USB Host controller driver. The argument ctrl is the index of USB Host Controller. The argument cap is a pointer to the capabilities Host Controller driver Instance (USBH_HCI_CAP) structure where capabilities will be read.

The usbh_ehci_hw_get_capabilities function is part of the RL-USB Host software stack.

You can modify this function to suit different EHCI controller register interface. This function will need to be changed if EHCI controller is used on a chip that does not yet have a low level driver provided.

None.

usbh_ehci_hw_delay_ms, usbh_ehci_hw_init, usbh_ehci_hw_irq_en, usbh_ehci_hw_pins_config, usbh_ehci_hw_port_power, usbh_ehci_hw_reg_rd, usbh_ehci_hw_reg_wr

void usbh_ehci_hw_get_capabilities (U8 ctrl, USBH_HCI_CAP *cap) {
  cap->MultiPckt = __TRUE;
  if (!ctrl)
    cap->MaxDataSz = USBH0_EHCI_MEM_DATA_SZ;
  else
    cap->MaxDataSz = USBH1_EHCI_MEM_DATA_SZ;
  cap->CtrlNAKs  = 100;
  cap->BulkNAKs  = 1000000;
}