vusbh11sh.c
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/*HEADER******************************************************************
**************************************************************************
***
*** Copyright (c) 2001-2002 ARC International.
*** All rights reserved
***
*** This software embodies materials and concepts which are
*** confidential to ARC International and is made
*** available solely pursuant to the terms of a written license
*** agreement with ARC International
***
*** File: vusbh11.c
***
*** Comments:
*** This file contains the low-level Host API functions specific to the VUSB
*** chip.
***
**************************************************************************
*END*********************************************************************/
#include "arcusb.h"
/*FUNCTION*-------------------------------------------------------------
*
* Function Name : _usb_hci_vusb11_bus_control
* Returned Value : None
* Comments :
* Bus control
*END*-----------------------------------------------------------------*/
void _usb_hci_vusb11_bus_control
(
/* [IN] the USB Host state structure */
_usb_host_handle handle,
/* The operation to be performed on the bus */
uint_8 bControl
)
{ /* Body */
USB_HOST_STATE_STRUCT_PTR usb_host_ptr;
usb_host_ptr = (USB_HOST_STATE_STRUCT_PTR)handle;
switch(bControl) {
case USB_ASSERT_BUS_RESET:
usb_host_ptr->DEV_PTR->CONTROL = (VUSB_CTRL_HOST_MODE_EN |
VUSB_CTRL_USB_EN | VUSB_CTRL_RESET);
break;
case USB_ASSERT_RESUME:
usb_host_ptr->DEV_PTR->CONTROL = (VUSB_CTRL_HOST_MODE_EN
| VUSB_CTRL_USB_EN | VUSB_CTRL_RESUME);
break;
case USB_SUSPEND_SOF:
usb_host_ptr->DEV_PTR->CONTROL = VUSB_CTRL_HOST_MODE_EN;
/* Enable the resume interrupt when suspended */
usb_host_ptr->DEV_PTR->INTENABLE |= VUSB_INT_ENB_RESUME;
break;
case USB_DEASSERT_BUS_RESET:
case USB_RESUME_SOF:
case USB_DEASSERT_RESUME:
/* Resume interrupt should not be enabled when not suspended */
usb_host_ptr->DEV_PTR->INTENABLE &= ~VUSB_INT_ENB_RESUME;
usb_host_ptr->DEV_PTR->CONTROL = (VUSB_CTRL_HOST_MODE_EN |
VUSB_CTRL_USB_EN);
default:
break;
} /* EndSwitch */
} /* EndBody */
/*FUNCTION*-------------------------------------------------------------
*
* Function Name : _usb_hci_vusb11_shutdown
* Returned Value : None
* Comments :
* Shutdown and de-initialize the VUSB1.1 hardware
*
*END*-----------------------------------------------------------------*/
void _usb_hci_vusb11_shutdown
(
/* [IN] the USB Host state structure */
_usb_host_handle handle
)
{ /* Body */
USB_HOST_STATE_STRUCT_PTR usb_host_ptr;
usb_host_ptr = (USB_HOST_STATE_STRUCT_PTR)handle;
*usb_host_ptr->ENDPT_HOST_RG = VUSB_ENDPT_DISABLE;
usb_host_ptr->DEV_PTR->CONTROL = 0x00; /* Disable VUSB */
usb_host_ptr->DEV_PTR->INTENABLE = 0x00; /* Mask all interupts */
usb_host_ptr->DEV_PTR->INTSTATUS = 0xFF; /* Clear all interupts */
usb_host_ptr->DEV_PTR->ADDRESS = 0;
} /* EndBody */
/* EOF */