usbh_ohci_hw_pins_config

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

BOOL usbh_ohci_hw_pins_config (
  BOOL on
);

The usbh_ohci_hw_pins_config function is used for configuration/unconfiguration of pins for the OHCI USB Host controller. The argument on specify if function should do configure or unconfigure pins.

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

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

The usbh_ohci_hw_pins_config function returns one of the following manifest constants.

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

usbh_ohci_hw_delay_ms, usbh_ohci_hw_get_capabilities, usbh_ohci_hw_init, usbh_ohci_hw_irq_en, usbh_ohci_hw_port_power, usbh_ohci_hw_reg_rd, usbh_ohci_hw_reg_wr

BOOL usbh_ohci_hw_pins_config (BOOL on) {

  if (on) {
    /* Set pin functions                                                      */
    LPC_PINCON->PINSEL1 &= ~((3 << 26) | (3 << 28));
    LPC_PINCON->PINSEL1 |=  ((1 << 26) |/* P0.29 -  USB_D+     (b01)          */
                             (1 << 28));/* P0.30 -  USB_D-     (b01)          */

    LPC_PINCON->PINSEL3 &= ~((3 <<  4) | (3 <<  6) | (3 << 12) | (3 << 22));
    LPC_PINCON->PINSEL3 |=  ((1 <<  4) |/* P1.18 -  USB_UP_LED (b01)          */
                             (2 <<  6) |/* P1.19 - !USB_PPWR   (b10)          */
                             (2 << 12) |/* P1.22 -  USB_PWRD   (b10)          */
                             (2 << 22));/* P1.27 - !USB_OVRCR  (b10)          */
  } else {
    /* Reset pin functions                                                    */
    LPC_PINCON->PINSEL3 &= ~((3 <<  4) | (3 <<  6) | (3 << 12) | (3 << 22));
    LPC_PINCON->PINSEL1 &= ~((3 << 26) | (3 << 28));
  }

  return (__TRUE);
}