From db0ddc6ee6c5e9d3dec919465dcb1c068123922d Mon Sep 17 00:00:00 2001 From: Harald Welte Date: Sun, 31 Jul 2011 22:36:10 +0200 Subject: at91lib: Add USB MULTI driver (for device with 3 configurations) This is in anticipation of the future SIMtrace firmware, where we will have a single device with three configurations. --- at91lib/usb/device/multiconf/MULTIDriver.c | 180 +++++++++++++++++++++++++++++ 1 file changed, 180 insertions(+) create mode 100644 at91lib/usb/device/multiconf/MULTIDriver.c (limited to 'at91lib/usb/device/multiconf/MULTIDriver.c') diff --git a/at91lib/usb/device/multiconf/MULTIDriver.c b/at91lib/usb/device/multiconf/MULTIDriver.c new file mode 100644 index 0000000..01a023e --- /dev/null +++ b/at91lib/usb/device/multiconf/MULTIDriver.c @@ -0,0 +1,180 @@ +/* ---------------------------------------------------------------------------- + * ATMEL Microcontroller Software Support + * ---------------------------------------------------------------------------- + * Copyright (c) 2008, Atmel Corporation + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * - Redistributions of source code must retain the above copyright notice, + * this list of conditions and the disclaimer below. + * + * Atmel's name may not be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE + * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, + * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, + * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * ---------------------------------------------------------------------------- + */ + +//----------------------------------------------------------------------------- +// Headers +//----------------------------------------------------------------------------- + +// GENERAL +#include +#include +#include + +// USB +#include +#include + +//- MULTI +#include "MULTIDriver.h" +#include "MULTIDriverDescriptors.h" + +//----------------------------------------------------------------------------- +// Defines +//----------------------------------------------------------------------------- + +/// Interface setting spaces (4 byte aligned) +#define NUM_INTERFACES ((2+3)&0xFC) + +//----------------------------------------------------------------------------- +// Types +//----------------------------------------------------------------------------- + +//----------------------------------------------------------------------------- +// Internal variables +//----------------------------------------------------------------------------- + +/// USBDDriver instance +static USBDDriver usbdDriver; + +/// Array for storing the current setting of each interface +static unsigned char multiDriverInterfaces[NUM_INTERFACES]; + +//----------------------------------------------------------------------------- +// Internal functions +//----------------------------------------------------------------------------- + +//----------------------------------------------------------------------------- +// Optional RequestReceived() callback re-implementation +//----------------------------------------------------------------------------- +#if !defined(NOAUTOCALLBACK) +void USBDCallbacks_RequestReceived(const USBGenericRequest *request) +{ + MULTIDriver_RequestHandler(request); +} +#endif + +//----------------------------------------------------------------------------- +/// Invoked whenever the active setting of an interface is changed by the +/// host. Changes the status of the third LED accordingly. +/// \param interface Interface number. +/// \param setting Newly active setting. +//----------------------------------------------------------------------------- +void USBDDriverCallbacks_InterfaceSettingChanged(unsigned char interface, + unsigned char setting) +{ + TRACE_DEBUG("Callback_IntfChg(%u, %u)\n\r", interface, setting); +} + +//----------------------------------------------------------------------------- +// ConfigurationChanged() callback re-implementation +//----------------------------------------------------------------------------- + +//----------------------------------------------------------------------------- +/// Invoked whenever the configuration value of a device is changed by the host +/// \param cfgnum Configuration number. +//----------------------------------------------------------------------------- +void USBDDriverCallbacks_ConfigurationChanged(unsigned char cfgnum) +{ + TRACE_DEBUG("Callback_ConfigChg(%u)\n\r", cfgnum); +} + +//----------------------------------------------------------------------------- +// Exported functions +//----------------------------------------------------------------------------- + +//----------------------------------------------------------------------------- +/// Initializes the USB device composite device driver. +//----------------------------------------------------------------------------- +void MULTIDriver_Initialize(void) +{ + + CDCDFunctionDriver_Initialize(); + + /* CCID nees no initialization */ + + // Initialize the standard USB driver + USBDDriver_Initialize(&usbdDriver, + &multiDriverDescriptors, + multiDriverInterfaces); + + // Initialize the USB driver + USBD_Init(); +} + +//----------------------------------------------------------------------------- +/// Handles composite-specific USB requests sent by the host, and forwards +/// standard ones to the USB device driver. +/// \param request Pointer to a USBGenericRequest instance. +//----------------------------------------------------------------------------- +void MULTIDriver_RequestHandler(const USBGenericRequest *request) +{ + // Check if this is a class request + if (USBGenericRequest_GetType(request) == USBGenericRequest_CLASS) { + + unsigned char rc = 0; + + //rc = CCID_RequestHandler(request); + if (!rc) { + TRACE_WARNING( + "MULTIDriver_RequestHandler: Unsupported request (%d)\n\r", + USBGenericRequest_GetRequest(request)); + USBD_Stall(0); + } + + } + // Check if this is a standard request + else if (USBGenericRequest_GetType(request) == USBGenericRequest_STANDARD) { + + unsigned char rc = 0; + + // Forward request to the standard handler + if (rc == 0) + USBDDriver_RequestHandler(&(usbdDriver), request); + } + // Unsupported request type + else { + TRACE_WARNING( + "MULTIDriver_RequestHandler: Unsupported request type (%d)\n\r", + USBGenericRequest_GetType(request)); + USBD_Stall(0); + } +} + +//----------------------------------------------------------------------------- +/// Starts a remote wake-up sequence if the host has explicitely enabled it +/// by sending the appropriate SET_FEATURE request. +//----------------------------------------------------------------------------- +void MULTIDriver_RemoteWakeUp(void) +{ + // Remote wake-up has been enabled + if (USBDDriver_IsRemoteWakeUpEnabled(&usbdDriver)) + USBD_RemoteWakeUp(); + else + TRACE_WARNING("MULTIriver_RemoteWakeUp: not enabled\n\r"); +} -- cgit v1.2.3