echo.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
***
*** $Workfile:otg_main.c$
*** $Revision: 1.1 $
*** $Date: 2003/02/17 20:49:00 $
***
*** Description:
*** This file contains the VUSB32 OTG application.
***
**************************************************************************
*END*********************************************************************/
#ifndef __USB_OS_MQX__
#include "types.h"
#include "otgapi.h"
#include "usb.h"
#include "devapi.h"
#include "hostapi.h"
#include "echo.h"
#include "test_h.h"
#include "stdio.h"
#include "stdlib.h"
#include "string.h"
#else
#include "mqx.h"
#include "bsp.h"
#include "devapi.h"
#include "hostapi.h"
#include "echo.h"
#endif
/* global variables */
_usb_device_handle dev_handle;
_usb_host_handle host_handle;
_usb_otg_handle app_otg_handle;
extern volatile APP_GLOBAL_STRUCT app_test_struct;
extern void device_main(_usb_device_handle dev_handle);
extern void host_main(_usb_host_handle host_handle);
uint_32 EVENT[20] = {0};
uint_32 event_count = 0;
volatile boolean HOST_REGISTER_SERVICES = TRUE;
/*FUNCTION*----------------------------------------------------------------
*
* Function Name : otg_device_startup
* Returned Value : None
* Comments :
* Start OTG in device mode.
*
*END*--------------------------------------------------------------------*/
uint_8 otg_device_startup
(
void
)
{ /* Body */
uint_8 error;
uint_32 state=0;
/* Initialize the USB interface */
error = _usb_device_init(0, &dev_handle, 4);
if (error != USB_OK) {
printf("\nUSB Device Initialization failed. Error: %x", error);
fflush(stdout);
} /* Endif */
error = _usb_device_register_service(dev_handle, USB_SERVICE_EP0,
service_ep0);
if (error != USB_OK) {
printf("\nUSB Device Service Registration failed. Error: %x", error);
fflush(stdout);
} /* Endif */
error = _usb_device_register_service(dev_handle, USB_SERVICE_BUS_RESET,
reset_ep0);
if (error != USB_OK) {
printf("\nUSB Device Service Registration failed. Error: %x", error);
fflush(stdout);
} /* Endif */
_usb_otg_get_status(app_otg_handle, USB_OTG_STATE, &state);
if (state < B_IDLE) {
error = _usb_device_register_service(dev_handle, USB_SERVICE_SOF,
bus_sof);
if (error != USB_OK) {
printf("\nUSB Device Service Registration failed. Error: %x", error);
fflush(stdout);
} /* Endif */
} /* Endif */
return error;
} /* Endbody */
/*FUNCTION*----------------------------------------------------------------
*
* Function Name : otg_device_shutdown
* Returned Value : None
* Comments :
* Start OTG in device shutdown
*
*END*--------------------------------------------------------------------*/
uint_8 otg_device_shutdown
(
void
)
{ /* Body */
uint_8 error;
error = _usb_device_unregister_service(dev_handle, USB_SERVICE_BUS_RESET);
if (error != USB_OK) {
printf("\nUSB Service Un Registration failed. Error: %x", error);
fflush(stdout);
} /* Endif */
error = _usb_device_unregister_service(dev_handle, USB_SERVICE_EP0);
if (error != USB_OK) {
printf("\nUSB Service un Registration failed. Error: %x", error);
fflush(stdout);
} /* Endif */
/* shutdown the USB interface */
_usb_device_shutdown(dev_handle);
return error;
} /* Endbody */
/*FUNCTION*----------------------------------------------------------------
*
* Function Name : otg_host_startup
* Returned Value : None
* Comments :
* Start OTG in host mode.
*
*END*--------------------------------------------------------------------*/
uint_8 otg_host_startup
(
void
)
{ /* Body */
uint_8 error;
error = _usb_host_init(0, 10, &host_handle);
if (error != USB_OK) {
printf("\nUSB Host Initialization failed. Error: %x", error);
fflush(stdout);
} /* Endif */
error = _usb_host_register_service(host_handle, USB_SERVICE_ATTACH,
app_process_attach);
if (error != USB_OK) {
printf("\nUSB Host Service Registration failed. Error: %x", error);
fflush(stdout);
} /* Endif */
error = _usb_host_register_service(host_handle, USB_SERVICE_DETACH,
app_process_detach);
if (error != USB_OK) {
printf("\nUSB Host Service Registration failed. Error: %x", error);
fflush(stdout);
} /* Endif */
error = _usb_host_register_service(host_handle, USB_SERVICE_HOST_RESUME,
app_process_host_resume);
if (error != USB_OK) {
printf("\nUSB Host Service Registration failed. Error: %x", error);
fflush(stdout);
} /* Endif */
HOST_REGISTER_SERVICES = TRUE;
return error;
} /* Endbody */
/*FUNCTION*----------------------------------------------------------------
*
* Function Name : otg_host_shutdown
* Returned Value : None
* Comments :
* Shutdown the OTG in host mode.
*
*END*--------------------------------------------------------------------*/
uint_8 otg_host_shutdown
(
void
)
{ /* Body */
uint_8 error;
error = _usb_host_unregister_service(host_handle, USB_SERVICE_DETACH);
if (error != USB_OK) {
printf("\nUSB Service Unregistration failed. Error: %x", error);
fflush(stdout);
} /* Endif */
error = _usb_host_unregister_service(host_handle, USB_SERVICE_ATTACH);
if (error != USB_OK) {
printf("\nUSB Service Unregistration failed. Error: %x", error);
fflush(stdout);
} /* Endif */
error = _usb_host_unregister_service(host_handle, USB_SERVICE_HOST_RESUME);
if (error != USB_OK) {
printf("\nUSB Service Unregistration failed. Error: %x", error);
fflush(stdout);
} /* Endif */
_usb_host_shutdown(host_handle);
return error;
} /* Endbody */
/*FUNCTION*----------------------------------------------------------------
*
* Function Name : otg_service
* Returned Value : None
* Comments :
* Called upon OTG service state change.
*
*END*--------------------------------------------------------------------*/
void otg_service
(
/* [IN] Handle of the USB device */
_usb_otg_handle handle,
/* [IN] service type */
uint_32 type
)
{ /* Body */
uint_8 error;
EVENT[event_count++] = type;
if (event_count>19) {
event_count = 0;
} /* Endif */
switch (type) {
case USB_OTG_HOST_UP:
error = otg_host_startup();
if (error == USB_OK) {
_usb_otg_set_status(handle, USB_OTG_HOST_ACTIVE, TRUE);
_usb_otg_set_status(app_otg_handle, USB_OTG_A_BUS_DROP, FALSE);
_usb_otg_set_status(app_otg_handle, USB_OTG_A_BUS_REQ, TRUE);
} /* Endif */
break;
case USB_OTG_DEVICE_UP:
error = otg_device_startup();
if (error== USB_OK) {
_usb_otg_set_status(handle,USB_OTG_DEVICE_ACTIVE, TRUE);
} /* Endif */
break;
case USB_OTG_HOST_DOWN:
error = otg_host_shutdown();
if (error == USB_OK) {
_usb_otg_set_status(handle,USB_OTG_HOST_ACTIVE, FALSE);
} /* Endif */
app_process_detach(host_handle, 0);
break;
case USB_OTG_DEVICE_DOWN:
error = otg_device_shutdown();
if (error == USB_OK) {
_usb_otg_set_status(handle,USB_OTG_DEVICE_ACTIVE, FALSE);
} /* Endif */
reset_ep0(dev_handle, FALSE, 0, NULL, 0);
break;
case USB_OTG_SRP_ACTIVE:
break;
case USB_OTG_SRP_FAIL:
break;
case USB_OTG_OVER_CURRENT:
break;
default:
break;
} /* Endswitch */
return;
} /* Endbody */
/*FUNCTION*----------------------------------------------------------------
*
* Function Name : main
* Returned Value : None
* Comments :
* First function called. Initialises the USB and registers Chapter 9
* callback functions.
*
*END*--------------------------------------------------------------------*/
void main
(
void
)
{ /* Body */
uint_8 error;
USB_OTG_INIT_STRUCT init;
volatile uint_32 i = 0;
uint_32 state=0;
/* default configuration: A will be host B will be peripheral */
init.A_BUS_DROP = FALSE;
init.A_BUS_REQ = TRUE;
init.B_BUS_REQ = FALSE;
init.SERVICE = otg_service;
app_test_struct.DO_HNP = FALSE;
_disable_interrupts();
/* Initialize the USB interface */
error = _usb_otg_init(0, &init, &app_otg_handle);
if (error != USB_OK) {
printf("\nUSB OTG Initialization failed. Error: %x", error);
fflush(stdout);
} /* Endif */
_enable_interrupts();
while (TRUE) {
_usb_otg_get_status(app_otg_handle, USB_OTG_STATE, &state);
if ((state == A_HOST) || (state == B_HOST)) {
host_main(host_handle);
} /* Endif */
if ((state == A_PERIPHERAL) || (state == B_PERIPHERAL)) {
device_main(dev_handle);
} /* Endif */
} /* Endwhile */
} /* Endbody */
/* EOF */