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

BOOL usbh_ehci_hw_pins_config (
  U8   ctrl,
  BOOL on
);

The usbh_ehci_hw_pins_config function is used for configuration/unconfiguration of pins for the EHCI USB Host controller. The argument ctrl is the index of USB Host Controller. The argument on specify if function should do configure or unconfigure pins.

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

You can modify this function to suit different EHCI controller hardware. 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.

The usbh_ehci_hw_pins_config function returns one of the following manifest constants.

• __TRUE
  Success.
• __FALSE
  Indicates that the configuration/unconfiguration of pins has failed.

usbh_ehci_hw_delay_ms, usbh_ehci_hw_get_capabilities, usbh_ehci_hw_init, usbh_ehci_hw_irq_en, usbh_ehci_hw_port_power, usbh_ehci_hw_reg_rd, usbh_ehci_hw_reg_wr

BOOL usbh_ehci_hw_pins_config (U8 ctrl, BOOL on) {

  if (!ctrl) {
    if (on) {
      /* Set pin functions                                                    */
      LPC_SCU->SFSP6_3 = 1;             /* USB0_PPWR                          */
      LPC_SCU->SFSP6_6 = 3;             /* USB0_PWR_FAULT                     */
      LPC_SCU->SFSP8_2 = 1;             /* USB0_IND0                          */
      LPC_SCU->SFSP8_1 = 1;             /* USB0_IND1                          */
    } else {
      /* Reset pin functions                                                  */
      LPC_SCU->SFSP6_3 = 0;
      LPC_SCU->SFSP6_6 = 0;
      LPC_SCU->SFSP8_2 = 0;
      LPC_SCU->SFSP8_1 = 0;
    }
  } else {
    if (on) {
      /* Set pin functions                                                    */
      LPC_SCU->SFSP9_5 = 2;             /* USB1_PPWR                          */
      LPC_SCU->SFSP9_6 = 2;             /* USB1_PWR_FAULT                     */
      LPC_SCU->SFSP9_4 = 2;             /* USB1_IND0                          */
      LPC_SCU->SFSP9_3 = 2;             /* USB1_IND1                          */
    } else {
      /* Reset pin functions                                                  */
      LPC_SCU->SFSP9_5 = 0;
      LPC_SCU->SFSP9_6 = 0;
      LPC_SCU->SFSP9_4 = 0;
      LPC_SCU->SFSP9_3 = 0;
    }
  }

  return (__TRUE);
}