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878ddf1fc3
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3 6f19259b-4bc3-4df7-8a09-765794883524
557 lines
11 KiB
C
557 lines
11 KiB
C
/*++
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Copyright (c) 2006, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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Module Name:
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usbutil.c
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Abstract:
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Helper functions for USB
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Revision History
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--*/
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#include "usbbus.h"
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//
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// Following APIs are used to query Port Status
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//
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BOOLEAN
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IsPortConnect (
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IN UINT16 PortStatus
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)
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/*++
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Routine Description:
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Tell if there is a device connected to that port according to
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the Port Status.
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Parameters:
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PortStatus - The status value of that port.
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Return Value:
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TRUE
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FALSE
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--*/
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{
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//
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// return the bit 0 value of PortStatus
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//
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if ((PortStatus & USB_PORT_STAT_CONNECTION) != 0) {
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return TRUE;
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} else {
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return FALSE;
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}
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}
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BOOLEAN
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IsPortEnable (
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IN UINT16 PortStatus
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)
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/*++
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Routine Description:
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Tell if Port is enabled.
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Arguments:
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PortStatus - The status value of that port.
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Returns:
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TRUE - Port is enable
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FALSE - Port is disable
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--*/
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{
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//
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// return the bit 1 value of PortStatus
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//
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if ((PortStatus & USB_PORT_STAT_ENABLE) != 0) {
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return TRUE;
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} else {
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return FALSE;
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}
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}
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BOOLEAN
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IsPortInReset (
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IN UINT16 PortStatus
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)
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/*++
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Routine Description:
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Tell if the port is being reset.
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Arguments:
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PortStatus - The status value of that port.
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Returns:
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TRUE
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FALSE
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--*/
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{
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//
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// return the bit 4 value of PortStatus
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//
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if ((PortStatus & USB_PORT_STAT_RESET) != 0) {
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return TRUE;
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} else {
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return FALSE;
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}
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}
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BOOLEAN
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IsPortPowerApplied (
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IN UINT16 PortStatus
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)
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/*++
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Routine Description:
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Tell if there is power applied to that port.
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Arguments:
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PortStatus - The status value of that port.
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Returns:
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TRUE
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FALSE
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--*/
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{
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//
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// return the bit 8 value of PortStatus
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//
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if ((PortStatus & USB_PORT_STAT_POWER) != 0) {
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return TRUE;
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} else {
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return FALSE;
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}
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}
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BOOLEAN
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IsPortLowSpeedDeviceAttached (
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IN UINT16 PortStatus
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)
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/*++
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Routine Description:
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Tell if the connected device is a low device.
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Arguments:
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PortStatus - The status value of that port.
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Returns:
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TRUE
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FALSE
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--*/
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{
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//
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// return the bit 9 value of PortStatus
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//
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if ((PortStatus & USB_PORT_STAT_LOW_SPEED) != 0) {
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return TRUE;
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} else {
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return FALSE;
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}
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}
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BOOLEAN
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IsPortSuspend (
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IN UINT16 PortStatus
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)
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/*++
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Routine Description:
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Tell if the port is suspend.
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Arguments:
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PortStatus - The status value of that port.
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Returns:
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TRUE
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FALSE
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--*/
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{
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//
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// return the bit 2 value of PortStatus
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//
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if ((PortStatus & USB_PORT_STAT_SUSPEND) != 0) {
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return TRUE;
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} else {
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return FALSE;
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}
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}
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//
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// Following APIs are used to query Port Change Status
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//
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BOOLEAN
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IsPortConnectChange (
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IN UINT16 PortChangeStatus
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)
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/*++
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Routine Description:
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Tell if there is a Connect Change status in that port.
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Arguments:
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PortChangeStatus - The status value of that port.
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Returns:
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TRUE
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FALSE
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--*/
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{
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//
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// return the bit 0 value of PortChangeStatus
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//
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if ((PortChangeStatus & USB_PORT_STAT_C_CONNECTION) != 0) {
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return TRUE;
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} else {
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return FALSE;
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}
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}
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BOOLEAN
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IsPortEnableDisableChange (
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IN UINT16 PortChangeStatus
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)
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/*++
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Routine Description:
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Tell if there is a Enable/Disable change in that port.
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Arguments:
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PortChangeStatus - The status value of that port.
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Returns:
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TRUE
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FALSE
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--*/
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{
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//
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// return the bit 1 value of PortChangeStatus
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//
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if ((PortChangeStatus & USB_PORT_STAT_C_ENABLE) != 0) {
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return TRUE;
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} else {
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return FALSE;
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}
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}
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BOOLEAN
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IsPortResetChange (
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IN UINT16 PortChangeStatus
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)
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/*++
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Routine Description:
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Tell if there is a Port Reset Change status in that port.
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Arguments:
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PortChangeStatus - The status value of that port.
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Returns:
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TRUE
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FALSE
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--*/
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{
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//
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// return the bit 4 value of PortChangeStatus
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//
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if ((PortChangeStatus & USB_PORT_STAT_C_RESET) != 0) {
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return TRUE;
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} else {
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return FALSE;
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}
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}
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BOOLEAN
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IsPortSuspendChange (
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IN UINT16 PortChangeStatus
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)
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/*++
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Routine Description:
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Tell if there is a Suspend Change Status in that port.
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Arguments:
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PortChangeStatus - The status value of that port.
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Returns:
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TRUE
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FALSE
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--*/
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{
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//
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// return the bit 2 value of PortChangeStatus
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//
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if ((PortChangeStatus & USB_PORT_STAT_C_SUSPEND) != 0) {
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return TRUE;
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} else {
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return FALSE;
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}
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}
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INTERFACE_DESC_LIST_ENTRY*
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FindInterfaceListEntry (
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IN EFI_USB_IO_PROTOCOL *This
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)
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/*++
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Routine Description:
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Find Interface ListEntry.
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Arguments:
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This - EFI_USB_IO_PROTOCOL
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Returns:
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INTERFACE_DESC_LIST_ENTRY pointer
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--*/
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{
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USB_IO_CONTROLLER_DEVICE *UsbIoController;
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USB_IO_DEVICE *UsbIoDev;
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LIST_ENTRY *InterfaceListHead;
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INTERFACE_DESC_LIST_ENTRY *InterfaceListEntry;
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UsbIoController = USB_IO_CONTROLLER_DEVICE_FROM_USB_IO_THIS (This);
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UsbIoDev = UsbIoController->UsbDevice;
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if (!UsbIoDev->IsConfigured) {
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return NULL;
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}
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InterfaceListHead = &UsbIoDev->ActiveConfig->InterfaceDescListHead;
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InterfaceListEntry = (INTERFACE_DESC_LIST_ENTRY *) (InterfaceListHead->ForwardLink);
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//
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// Loop all interface descriptor to get match one.
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//
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while (InterfaceListEntry != (INTERFACE_DESC_LIST_ENTRY *) InterfaceListHead) {
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if (InterfaceListEntry->InterfaceDescriptor.InterfaceNumber == UsbIoController->InterfaceNumber) {
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return InterfaceListEntry;
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}
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InterfaceListEntry = (INTERFACE_DESC_LIST_ENTRY *) InterfaceListEntry->Link.ForwardLink;
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}
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return NULL;
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}
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ENDPOINT_DESC_LIST_ENTRY*
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FindEndPointListEntry (
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IN EFI_USB_IO_PROTOCOL *This,
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IN UINT8 EndPointAddress
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)
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/*++
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Routine Description:
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Find EndPoint ListEntry.
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Arguments:
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This - EFI_USB_IO_PROTOCOL
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EndpointAddr - Endpoint address.
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Returns:
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ENDPOINT_DESC_LIST_ENTRY pointer
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--*/
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{
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INTERFACE_DESC_LIST_ENTRY *InterfaceListEntry;
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LIST_ENTRY *EndpointDescListHead;
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ENDPOINT_DESC_LIST_ENTRY *EndPointListEntry;
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InterfaceListEntry = FindInterfaceListEntry (This);
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if (InterfaceListEntry != NULL) {
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EndpointDescListHead = &InterfaceListEntry->EndpointDescListHead;
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EndPointListEntry = (ENDPOINT_DESC_LIST_ENTRY *) (EndpointDescListHead->ForwardLink);
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//
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// Loop all interface descriptor to get match one.
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//
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while (EndPointListEntry != (ENDPOINT_DESC_LIST_ENTRY *) EndpointDescListHead) {
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if (EndPointListEntry->EndpointDescriptor.EndpointAddress == EndPointAddress) {
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return EndPointListEntry;
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}
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EndPointListEntry = (ENDPOINT_DESC_LIST_ENTRY *) EndPointListEntry->Link.ForwardLink;
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}
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}
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return NULL;
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}
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VOID
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GetDataToggleBit (
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IN EFI_USB_IO_PROTOCOL *UsbIo,
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IN UINT8 EndpointAddr,
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OUT UINT8 *DataToggle
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)
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/*++
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Routine Description:
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Get the datatoggle of a specified endpoint.
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Arguments:
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UsbIo - Given Usb Controller device.
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EndpointAddr - Given Endpoint address.
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DataToggle - The current data toggle of that endpoint
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Returns:
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N/A
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--*/
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{
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ENDPOINT_DESC_LIST_ENTRY *EndpointListEntry;
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*DataToggle = 0;
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EndpointListEntry = FindEndPointListEntry (UsbIo, EndpointAddr);
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if (EndpointListEntry == NULL) {
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return ;
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}
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*DataToggle = (UINT8) (EndpointListEntry->Toggle);
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return ;
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}
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VOID
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SetDataToggleBit (
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IN EFI_USB_IO_PROTOCOL *UsbIo,
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IN UINT8 EndpointAddr,
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IN UINT8 DataToggle
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)
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/*++
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Routine Description:
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Set the datatoggle of a specified endpoint
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Arguments:
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UsbIo - Given Usb Controller device.
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EndpointAddr - Given Endpoint address.
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DataToggle - The current data toggle of that endpoint to be set
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Returns:
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N/A
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--*/
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{
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ENDPOINT_DESC_LIST_ENTRY *EndpointListEntry;
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EndpointListEntry = FindEndPointListEntry (UsbIo, EndpointAddr);
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if (EndpointListEntry == NULL) {
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return ;
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}
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EndpointListEntry->Toggle = DataToggle;
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return ;
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}
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VOID
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GetDeviceEndPointMaxPacketLength (
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IN EFI_USB_IO_PROTOCOL *UsbIo,
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IN UINT8 EndpointAddr,
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OUT UINT8 *MaxPacketLength
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)
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/*++
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Routine Description:
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Get the Max Packet Length of the speified Endpoint.
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Arguments:
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UsbIo - Given Usb Controller device.
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EndpointAddr - Given Endpoint address.
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MaxPacketLength - The max packet length of that endpoint
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Returns:
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N/A
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--*/
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{
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ENDPOINT_DESC_LIST_ENTRY *EndpointListEntry;
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*MaxPacketLength = 0;
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EndpointListEntry = FindEndPointListEntry (UsbIo, EndpointAddr);
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if (EndpointListEntry == NULL) {
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return ;
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}
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*MaxPacketLength = (UINT8) (EndpointListEntry->EndpointDescriptor.MaxPacketSize);
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return ;
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}
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EFI_STATUS
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UsbSetDeviceAddress (
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IN EFI_USB_IO_PROTOCOL *UsbIo,
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IN UINT16 AddressValue,
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OUT UINT32 *Status
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)
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/*++
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Routine Description:
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Usb Set Device Address
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Arguments:
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UsbIo - EFI_USB_IO_PROTOCOL
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AddressValue - Device address
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Status - Transfer status
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Returns:
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EFI_INVALID_PARAMETER - Parameter is error
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EFI_SUCCESS - Success
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EFI_TIMEOUT - Device has no response
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--*/
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{
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EFI_USB_DEVICE_REQUEST DevReq;
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if (UsbIo == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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ZeroMem (&DevReq, sizeof (EFI_USB_DEVICE_REQUEST));
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DevReq.RequestType = USB_DEV_SET_ADDRESS_REQ_TYPE;
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DevReq.Request = USB_DEV_SET_ADDRESS;
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DevReq.Value = AddressValue;
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return UsbIo->UsbControlTransfer (
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UsbIo,
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&DevReq,
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EfiUsbNoData,
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TIMEOUT_VALUE,
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NULL,
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0,
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Status
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);
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}
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