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In the standard atmel lib only one configuration was possible. On a GETDESCRIPTOR request the board would always return the full buffer with both configurations. The USB driver requests each configuration one after another, using the configuration index number. The atmel lib did not support more than one USB configuration.
359 lines
12 KiB
C
359 lines
12 KiB
C
/* ----------------------------------------------------------------------------
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* ATMEL Microcontroller Software Support
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* ----------------------------------------------------------------------------
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* Copyright (c) 2009, Atmel Corporation
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the disclaimer below.
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*
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* Atmel's name may not be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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* ----------------------------------------------------------------------------
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*/
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/*----------------------------------------------------------------------------
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* Headers
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*----------------------------------------------------------------------------*/
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#include "board.h"
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/*----------------------------------------------------------------------------
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* Internal variables
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*----------------------------------------------------------------------------*/
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/** Standard USB device descriptor for the CDC serial driver */
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const USBDeviceDescriptor deviceDescriptor = {
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sizeof(USBDeviceDescriptor),
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USBGenericDescriptor_DEVICE,
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USBDeviceDescriptor_USB2_00,
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0xff,
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// CDCDeviceDescriptor_CLASS,
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0xff,
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// CDCDeviceDescriptor_SUBCLASS,
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0xff,
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// CDCDeviceDescriptor_PROTOCOL,
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BOARD_USB_ENDPOINTS_MAXPACKETSIZE(0),
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ATMEL_VENDOR_ID,
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SIMTRACE_PRODUCT_ID,
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1, /* Release number */
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0, /* No string descriptor for manufacturer */
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1, /* Index of product string descriptor is #1 */
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0, /* No string descriptor for serial number */
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2 /* Device has 2 possible configurations */
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};
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typedef struct _SIMTraceDriverConfigurationDescriptors {
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/** Standard configuration descriptor. */
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USBConfigurationDescriptor configuration;
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/** Data interface descriptor. */
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USBInterfaceDescriptor data;
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/** Data OUT endpoint descriptor. */
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USBEndpointDescriptor dataOut;
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/** Data IN endpoint descriptor. */
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USBEndpointDescriptor dataIn;
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} __attribute__ ((packed)) SIMTraceDriverConfigurationDescriptor;
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const SIMTraceDriverConfigurationDescriptor configurationDescriptorsFS1 = {
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/* Standard configuration descriptor */
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{
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sizeof(USBConfigurationDescriptor),
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USBGenericDescriptor_CONFIGURATION,
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sizeof(SIMTraceDriverConfigurationDescriptor),
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2, /* There are two interfaces in this configuration */
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1, /* This is configuration #1 */
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2, /* Second string descriptor for this configuration */
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USBD_BMATTRIBUTES,
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USBConfigurationDescriptor_POWER(100)
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},
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/* Communication class interface standard descriptor */
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{
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sizeof(USBInterfaceDescriptor),
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USBGenericDescriptor_INTERFACE,
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0, /* This is interface #0 */
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0, /* This is alternate setting #0 for this interface */
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2, /* This interface uses 2 endpoints */
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//CDCCommunicationInterfaceDescriptor_CLASS,
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0xff,
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// CDCCommunicationInterfaceDescriptor_ABSTRACTCONTROLMODEL,
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0,
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// CDCCommunicationInterfaceDescriptor_NOPROTOCOL,
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0,
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1 /* Second in string descriptor for this interface */
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},
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/* Bulk-OUT endpoint standard descriptor */
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#define DATAOUT 1
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{
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sizeof(USBEndpointDescriptor),
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USBGenericDescriptor_ENDPOINT,
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USBEndpointDescriptor_ADDRESS(USBEndpointDescriptor_OUT,
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DATAOUT),
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USBEndpointDescriptor_BULK,
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MIN(BOARD_USB_ENDPOINTS_MAXPACKETSIZE(DATAOUT),
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USBEndpointDescriptor_MAXBULKSIZE_FS),
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0 /* Must be 0 for full-speed bulk endpoints */
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},
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/* Bulk-IN endpoint descriptor */
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#define DATAIN 2
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{
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sizeof(USBEndpointDescriptor),
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USBGenericDescriptor_ENDPOINT,
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USBEndpointDescriptor_ADDRESS(USBEndpointDescriptor_IN,
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DATAIN),
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USBEndpointDescriptor_BULK,
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MIN(BOARD_USB_ENDPOINTS_MAXPACKETSIZE(DATAIN),
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USBEndpointDescriptor_MAXBULKSIZE_FS),
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0 /* Must be 0 for full-speed bulk endpoints */
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}
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};
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const SIMTraceDriverConfigurationDescriptor configurationDescriptorsFS2 = {
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/** Second configuration **/
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{
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sizeof(USBConfigurationDescriptor),
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USBGenericDescriptor_CONFIGURATION,
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sizeof(SIMTraceDriverConfigurationDescriptor),
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2, /* There are two interfaces in this configuration */
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2, /* This is configuration #2 */
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3, /* Third string descriptor for this configuration */
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USBD_BMATTRIBUTES,
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USBConfigurationDescriptor_POWER(100)
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},
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/* Communication class interface standard descriptor */
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{
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sizeof(USBInterfaceDescriptor),
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USBGenericDescriptor_INTERFACE,
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0, /* This is interface #0 */
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0, /* This is alternate setting #0 for this interface */
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2, /* This interface uses 2 endpoints */
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//CDCCommunicationInterfaceDescriptor_CLASS,
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0xff,
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// CDCCommunicationInterfaceDescriptor_ABSTRACTCONTROLMODEL,
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0,
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// CDCCommunicationInterfaceDescriptor_NOPROTOCOL,
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0,
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3 /* Third in string descriptor for this interface */
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},
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/* Bulk-OUT endpoint standard descriptor */
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{
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sizeof(USBEndpointDescriptor),
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USBGenericDescriptor_ENDPOINT,
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USBEndpointDescriptor_ADDRESS(USBEndpointDescriptor_OUT,
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DATAOUT),
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USBEndpointDescriptor_BULK,
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MIN(BOARD_USB_ENDPOINTS_MAXPACKETSIZE(DATAOUT),
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USBEndpointDescriptor_MAXBULKSIZE_FS),
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0 /* Must be 0 for full-speed bulk endpoints */
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},
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/* Bulk-IN endpoint descriptor */
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{
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sizeof(USBEndpointDescriptor),
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USBGenericDescriptor_ENDPOINT,
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USBEndpointDescriptor_ADDRESS(USBEndpointDescriptor_IN,
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DATAIN),
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USBEndpointDescriptor_BULK,
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MIN(BOARD_USB_ENDPOINTS_MAXPACKETSIZE(DATAIN),
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USBEndpointDescriptor_MAXBULKSIZE_FS),
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0 /* Must be 0 for full-speed bulk endpoints */
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}
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};
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const SIMTraceDriverConfigurationDescriptor *configurationDescriptorsFSarr[] = {
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&configurationDescriptorsFS1,
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&configurationDescriptorsFS2
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};
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const unsigned char someString[] = {
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USBStringDescriptor_LENGTH(4),
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USBGenericDescriptor_STRING,
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USBStringDescriptor_UNICODE('S'),
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USBStringDescriptor_UNICODE('O'),
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USBStringDescriptor_UNICODE('M'),
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USBStringDescriptor_UNICODE('E'),
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};
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const unsigned char productStringDescriptor[] = {
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USBStringDescriptor_LENGTH(13),
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USBGenericDescriptor_STRING,
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USBStringDescriptor_UNICODE('S'),
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USBStringDescriptor_UNICODE('I'),
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USBStringDescriptor_UNICODE('M'),
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USBStringDescriptor_UNICODE('T'),
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USBStringDescriptor_UNICODE('R'),
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USBStringDescriptor_UNICODE('A'),
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USBStringDescriptor_UNICODE('C'),
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USBStringDescriptor_UNICODE('E'),
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USBStringDescriptor_UNICODE('~'),
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USBStringDescriptor_UNICODE('~'),
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USBStringDescriptor_UNICODE('~'),
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USBStringDescriptor_UNICODE('~'),
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USBStringDescriptor_UNICODE('~')
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};
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const unsigned char productStringDescriptor2[] = {
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USBStringDescriptor_LENGTH(13),
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USBGenericDescriptor_STRING,
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USBStringDescriptor_UNICODE('S'),
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USBStringDescriptor_UNICODE('I'),
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USBStringDescriptor_UNICODE('M'),
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USBStringDescriptor_UNICODE('T'),
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USBStringDescriptor_UNICODE('R'),
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USBStringDescriptor_UNICODE('A'),
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USBStringDescriptor_UNICODE('C'),
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USBStringDescriptor_UNICODE('E'),
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USBStringDescriptor_UNICODE('~'),
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USBStringDescriptor_UNICODE('2'),
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USBStringDescriptor_UNICODE('~'),
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USBStringDescriptor_UNICODE('~'),
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USBStringDescriptor_UNICODE('~')
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};
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/** List of string descriptors used by the device */
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const unsigned char *stringDescriptors[] = {
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/* FIXME: Is it true that I can't use the string desc #0,
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* because 0 also stands for "no string desc"?
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* on the other hand, dmesg output:
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* "string descriptor 0 malformed (err = -61), defaulting to 0x0409" */
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0,
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productStringDescriptor,
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someString,
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productStringDescriptor2,
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};
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const USBDDriverDescriptors driverDescriptors = {
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&deviceDescriptor,
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(USBConfigurationDescriptor **) &(configurationDescriptorsFSarr), /* full-speed configuration descriptor */
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0, /* No full-speed device qualifier descriptor */
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0, /* No full-speed other speed configuration */
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0, /* No high-speed device descriptor */
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0, /* No high-speed configuration descriptor */
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0, /* No high-speed device qualifier descriptor */
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0, /* No high-speed other speed configuration descriptor */
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stringDescriptors,
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4 /* 4 string descriptors in list */
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};
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/**
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* \brief Configure 48MHz Clock for USB
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*/
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static void _ConfigureUsbClock(void)
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{
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/* Enable PLLB for USB */
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// FIXME: are these the dividers I actually need?
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// FIXME: I could just use PLLA, since it has a frequ of 48Mhz anyways?
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PMC->CKGR_PLLBR = CKGR_PLLBR_DIVB(5)
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| CKGR_PLLBR_MULB(0xc) /* MULT+1=0xd*/
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| CKGR_PLLBR_PLLBCOUNT_Msk;
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while((PMC->PMC_SR & PMC_SR_LOCKB) == 0);
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/* USB Clock uses PLLB */
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PMC->PMC_USB = PMC_USB_USBDIV(0) /* /1 (no divider) */
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| PMC_USB_USBS; /* PLLB */
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}
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void SIMtraceDriver_Initialize( void )
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{
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// Get std USB driver
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USBDDriver *pUsbd = USBD_GetDriver();
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TRACE_DEBUG(".");
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// Initialize standard USB driver
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USBDDriver_Initialize(pUsbd,
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&driverDescriptors,
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// FIXME: 2 interface settings supported in MITM mode
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0); // Multiple interface settings not supported
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USBD_Init();
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TRACE_DEBUG("%s", "leaving");
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}
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/*
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void USBDDriverCallbacks_ConfigurationChanged(unsigned char cfgnum)
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{
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printf("Configuration change requested: %c\n\r", cfgnum);
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}
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void USBDCallbacks_RequestReceived(const USBGenericRequest *request)
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{
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printf("RequestHandler called %d\n\r", USBGenericRequest_GetType(request));
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}
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*/
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/*----------------------------------------------------------------------------
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* Main
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*----------------------------------------------------------------------------*/
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/**
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* \brief usb_cdc_serial Application entry point.
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*
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* Initializes drivers and start the USB <-> Serial bridge.
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*/
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int main(void)
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{
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uint8_t isUsbConnected = 0;
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LED_Configure(LED_NUM_GREEN);
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LED_Set(LED_NUM_GREEN);
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/* Disable watchdog */
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WDT_Disable( WDT );
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PIO_InitializeInterrupts(0);
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// NVIC_EnableIRQ(UDP_IRQn);
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/* Enable UPLL for USB */
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// _ConfigureUsbClock();
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/* CDC serial driver initialization */
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// CDCDSerialDriver_Initialize(&driverDescriptors);
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SIMtraceDriver_Initialize();
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// CCIDDriver_Initialize();
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USBD_Connect();
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NVIC_EnableIRQ( UDP_IRQn );
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printf("**** Start");
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while (1) {
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/* Device is not configured */
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if (USBD_GetState() < USBD_STATE_CONFIGURED) {
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if (isUsbConnected) {
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isUsbConnected = 0;
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// TC_Stop(TC0, 0);
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}
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}
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else if (isUsbConnected == 0) {
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printf("USB is now configured\n\r");
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isUsbConnected = 1;
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// TC_Start(TC0, 0);
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}
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}
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}
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