mirror of
https://github.com/RfidResearchGroup/proxmark3.git
synced 2024-11-10 17:49:32 +08:00
508b37ba9c
ADD: added a new string helper function "sprint_hex_ascii" in util.c
ADD: added "LF AWID BRUTE", a very simple bruteforce command for the awid commands.
it takes a facility-code, and iterates all possible 0xFFFF cardnum by sending sim command. It also uses the usb_poll function to stop the bruteforce on keypress and not leaving the pm3 device running the simulation.
the command implements the help parameter.
582 lines
18 KiB
C
582 lines
18 KiB
C
/*
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* at91sam7s USB CDC device implementation
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*
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* Copyright (c) 2012, Roel Verdult
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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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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the copyright holders nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* based on the "Basic USB Example" from ATMEL (doc6123.pdf)
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*
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* @file usb_cdc.c
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* @brief
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*/
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#include "usb_cdc.h"
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#include "config_gpio.h"
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#define MIN(a, b) (((a) < (b)) ? (a) : (b))
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#define MAX(a, b) (((a) > (b)) ? (a) : (b))
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#define AT91C_EP_IN_SIZE 0x40
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#define AT91C_EP_OUT 1
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#define AT91C_EP_OUT_SIZE 0x40
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#define AT91C_EP_IN 2
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const char devDescriptor[] = {
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/* Device descriptor */
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0x12, // bLength
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0x01, // bDescriptorType
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0x10,0x01, // Complies with USB Spec. Release (0110h = release 1.10)
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0x02, // bDeviceClass: CDC class code
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0x00, // bDeviceSubclass: CDC class sub code
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0x00, // bDeviceProtocol: CDC Device protocol
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0x08, // bMaxPacketSize0
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0x2d,0x2d, // Vendor ID (--)
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0x4d,0x50, // Product ID (PM), transmitted in reverse
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0x01,0x00, // Device release number (0001)
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0x01, // iManufacturer // 0x01
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0x00, // iProduct
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0x00, // SerialNumber
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0x01 // bNumConfigs
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};
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const char cfgDescriptor[] = {
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/* ============== CONFIGURATION 1 =========== */
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/* Configuration 1 descriptor */
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0x09, // CbLength
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0x02, // CbDescriptorType
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0x43, // CwTotalLength 2 EP + Control
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0x00,
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0x02, // CbNumInterfaces
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0x01, // CbConfigurationValue
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0x00, // CiConfiguration
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0xC0, // CbmAttributes 0xA0
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0x00, // CMaxPower
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/* Communication Class Interface Descriptor Requirement */
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0x09, // bLength
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0x04, // bDescriptorType
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0x00, // bInterfaceNumber
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0x00, // bAlternateSetting
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0x01, // bNumEndpoints
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0x02, // bInterfaceClass
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0x02, // bInterfaceSubclass
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0x00, // bInterfaceProtocol
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0x00, // iInterface
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/* Header Functional Descriptor */
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0x05, // bFunction Length
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0x24, // bDescriptor type: CS_INTERFACE
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0x00, // bDescriptor subtype: Header Func Desc
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0x10, // bcdCDC:1.1
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0x01,
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/* ACM Functional Descriptor */
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0x04, // bFunctionLength
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0x24, // bDescriptor Type: CS_INTERFACE
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0x02, // bDescriptor Subtype: ACM Func Desc
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0x00, // bmCapabilities
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/* Union Functional Descriptor */
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0x05, // bFunctionLength
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0x24, // bDescriptorType: CS_INTERFACE
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0x06, // bDescriptor Subtype: Union Func Desc
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0x00, // bMasterInterface: Communication Class Interface
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0x01, // bSlaveInterface0: Data Class Interface
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/* Call Management Functional Descriptor */
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0x05, // bFunctionLength
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0x24, // bDescriptor Type: CS_INTERFACE
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0x01, // bDescriptor Subtype: Call Management Func Desc
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0x00, // bmCapabilities: D1 + D0
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0x01, // bDataInterface: Data Class Interface 1
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/* Endpoint 1 descriptor */
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0x07, // bLength
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0x05, // bDescriptorType
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0x83, // bEndpointAddress, Endpoint 03 - IN
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0x03, // bmAttributes INT
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0x08, // wMaxPacketSize
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0x00,
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0xFF, // bInterval
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/* Data Class Interface Descriptor Requirement */
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0x09, // bLength
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0x04, // bDescriptorType
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0x01, // bInterfaceNumber
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0x00, // bAlternateSetting
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0x02, // bNumEndpoints
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0x0A, // bInterfaceClass
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0x00, // bInterfaceSubclass
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0x00, // bInterfaceProtocol
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0x00, // iInterface
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/* First alternate setting */
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/* Endpoint 1 descriptor */
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0x07, // bLength
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0x05, // bDescriptorType
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0x01, // bEndpointAddress, Endpoint 01 - OUT
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0x02, // bmAttributes BULK
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AT91C_EP_OUT_SIZE, // wMaxPacketSize
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0x00,
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0x00, // bInterval
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/* Endpoint 2 descriptor */
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0x07, // bLength
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0x05, // bDescriptorType
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0x82, // bEndpointAddress, Endpoint 02 - IN
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0x02, // bmAttributes BULK
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AT91C_EP_IN_SIZE, // wMaxPacketSize
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0x00,
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0x00 // bInterval
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};
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const char strDescriptor[] = {
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26, // Length
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0x03, // Type is string
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'p', 0x00,
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'r', 0x00,
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'o', 0x00,
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'x', 0x00,
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'm', 0x00,
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'a', 0x00,
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'r', 0x00,
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'k', 0x00,
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'.', 0x00,
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'o', 0x00,
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'r', 0x00,
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'g', 0x00,
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};
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/* USB standard request code */
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#define STD_GET_STATUS_ZERO 0x0080
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#define STD_GET_STATUS_INTERFACE 0x0081
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#define STD_GET_STATUS_ENDPOINT 0x0082
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#define STD_CLEAR_FEATURE_ZERO 0x0100
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#define STD_CLEAR_FEATURE_INTERFACE 0x0101
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#define STD_CLEAR_FEATURE_ENDPOINT 0x0102
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#define STD_SET_FEATURE_ZERO 0x0300
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#define STD_SET_FEATURE_INTERFACE 0x0301
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#define STD_SET_FEATURE_ENDPOINT 0x0302
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#define STD_SET_ADDRESS 0x0500
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#define STD_GET_DESCRIPTOR 0x0680
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#define STD_SET_DESCRIPTOR 0x0700
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#define STD_GET_CONFIGURATION 0x0880
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#define STD_SET_CONFIGURATION 0x0900
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#define STD_GET_INTERFACE 0x0A81
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#define STD_SET_INTERFACE 0x0B01
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#define STD_SYNCH_FRAME 0x0C82
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/* CDC Class Specific Request Code */
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#define GET_LINE_CODING 0x21A1
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#define SET_LINE_CODING 0x2021
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#define SET_CONTROL_LINE_STATE 0x2221
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typedef struct {
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unsigned int dwDTERRate;
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char bCharFormat;
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char bParityType;
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char bDataBits;
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} AT91S_CDC_LINE_CODING, *AT91PS_CDC_LINE_CODING;
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AT91S_CDC_LINE_CODING line = {
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115200, // baudrate
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0, // 1 Stop Bit
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0, // None Parity
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8}; // 8 Data bits
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void AT91F_CDC_Enumerate();
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AT91PS_UDP pUdp = AT91C_BASE_UDP;
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byte_t btConfiguration = 0;
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byte_t btConnection = 0;
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byte_t btReceiveBank = AT91C_UDP_RX_DATA_BK0;
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//*----------------------------------------------------------------------------
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//* \fn usb_disable
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//* \brief This function deactivates the USB device
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//*----------------------------------------------------------------------------
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void usb_disable() {
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// Disconnect the USB device
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AT91C_BASE_PIOA->PIO_ODR = GPIO_USB_PU;
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// Clear all lingering interrupts
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if(pUdp->UDP_ISR & AT91C_UDP_ENDBUSRES) {
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pUdp->UDP_ICR = AT91C_UDP_ENDBUSRES;
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}
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}
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//*----------------------------------------------------------------------------
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//* \fn usb_enable
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//* \brief This function Activates the USB device
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//*----------------------------------------------------------------------------
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void usb_enable() {
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// Set the PLL USB Divider
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AT91C_BASE_CKGR->CKGR_PLLR |= AT91C_CKGR_USBDIV_1 ;
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// Specific Chip USB Initialisation
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// Enables the 48MHz USB clock UDPCK and System Peripheral USB Clock
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AT91C_BASE_PMC->PMC_SCER = AT91C_PMC_UDP;
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AT91C_BASE_PMC->PMC_PCER = (1 << AT91C_ID_UDP);
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// Enable UDP PullUp (USB_DP_PUP) : enable & Clear of the corresponding PIO
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// Set in PIO mode and Configure in Output
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AT91C_BASE_PIOA->PIO_PER = GPIO_USB_PU; // Set in PIO mode
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AT91C_BASE_PIOA->PIO_OER = GPIO_USB_PU; // Configure as Output
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// Clear for set the Pullup resistor
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AT91C_BASE_PIOA->PIO_CODR = GPIO_USB_PU;
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// Disconnect and reconnect USB controller for 100ms
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usb_disable();
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// Wait for a short while
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for (volatile size_t i=0; i<0x100000; i++);
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//sleep(1);
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// Reconnect USB reconnect
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AT91C_BASE_PIOA->PIO_SODR = GPIO_USB_PU;
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AT91C_BASE_PIOA->PIO_OER = GPIO_USB_PU;
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}
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//*----------------------------------------------------------------------------
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//* \fn usb_check
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//* \brief Test if the device is configured and handle enumeration
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//*----------------------------------------------------------------------------
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bool usb_check() {
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AT91_REG isr = pUdp->UDP_ISR;
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if (isr & AT91C_UDP_ENDBUSRES) {
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pUdp->UDP_ICR = AT91C_UDP_ENDBUSRES;
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// reset all endpoints
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pUdp->UDP_RSTEP = (unsigned int)-1;
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pUdp->UDP_RSTEP = 0;
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// Enable the function
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pUdp->UDP_FADDR = AT91C_UDP_FEN;
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// Configure endpoint 0
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pUdp->UDP_CSR[0] = (AT91C_UDP_EPEDS | AT91C_UDP_EPTYPE_CTRL);
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}
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else if (isr & AT91C_UDP_EPINT0) {
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pUdp->UDP_ICR = AT91C_UDP_EPINT0;
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AT91F_CDC_Enumerate();
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}
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return (btConfiguration) ? true : false;
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}
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bool usb_poll()
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{
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if (!usb_check()) return false;
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return (pUdp->UDP_CSR[AT91C_EP_OUT] & btReceiveBank);
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}
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/**
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In github PR #129, some users appears to get a false positive from
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usb_poll, which returns true, but the usb_read operation
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still returns 0.
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This check is basically the same as above, but also checks
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that the length available to read is non-zero, thus hopefully fixes the
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bug.
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**/
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bool usb_poll_validate_length()
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{
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if (!usb_check()) return false;
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if (!(pUdp->UDP_CSR[AT91C_EP_OUT] & btReceiveBank)) return false;
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return (pUdp->UDP_CSR[AT91C_EP_OUT] >> 16) > 0;
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}
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//*----------------------------------------------------------------------------
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//* \fn usb_read
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//* \brief Read available data from Endpoint OUT
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//*----------------------------------------------------------------------------
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uint32_t usb_read(byte_t* data, size_t len) {
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byte_t bank = btReceiveBank;
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uint32_t packetSize, nbBytesRcv = 0;
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uint32_t time_out = 0;
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while (len) {
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if (!usb_check()) break;
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if ( pUdp->UDP_CSR[AT91C_EP_OUT] & bank ) {
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packetSize = MIN(pUdp->UDP_CSR[AT91C_EP_OUT] >> 16, len);
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len -= packetSize;
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while(packetSize--)
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data[nbBytesRcv++] = pUdp->UDP_FDR[AT91C_EP_OUT];
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pUdp->UDP_CSR[AT91C_EP_OUT] &= ~(bank);
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if (bank == AT91C_UDP_RX_DATA_BK0)
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bank = AT91C_UDP_RX_DATA_BK1;
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else
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bank = AT91C_UDP_RX_DATA_BK0;
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}
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if (time_out++ == 0x1fff) break;
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}
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btReceiveBank = bank;
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return nbBytesRcv;
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}
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//*----------------------------------------------------------------------------
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//* \fn usb_write
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//* \brief Send through endpoint 2
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//*----------------------------------------------------------------------------
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uint32_t usb_write(const byte_t* data, const size_t len) {
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size_t length = len;
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uint32_t cpt = 0;
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if (!length) return 0;
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if (!usb_check()) return 0;
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// Send the first packet
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cpt = MIN(length, AT91C_EP_IN_SIZE-1);
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length -= cpt;
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while (cpt--) pUdp->UDP_FDR[AT91C_EP_IN] = *data++;
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pUdp->UDP_CSR[AT91C_EP_IN] |= AT91C_UDP_TXPKTRDY;
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while (length) {
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// Fill the second bank
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cpt = MIN(length, AT91C_EP_IN_SIZE-1);
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length -= cpt;
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while (cpt--) pUdp->UDP_FDR[AT91C_EP_IN] = *data++;
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// Wait for the the first bank to be sent
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while (!(pUdp->UDP_CSR[AT91C_EP_IN] & AT91C_UDP_TXCOMP)) {
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if (!usb_check()) return length;
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}
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pUdp->UDP_CSR[AT91C_EP_IN] &= ~(AT91C_UDP_TXCOMP);
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while (pUdp->UDP_CSR[AT91C_EP_IN] & AT91C_UDP_TXCOMP);
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pUdp->UDP_CSR[AT91C_EP_IN] |= AT91C_UDP_TXPKTRDY;
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}
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// Wait for the end of transfer
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while (!(pUdp->UDP_CSR[AT91C_EP_IN] & AT91C_UDP_TXCOMP)) {
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if (!usb_check()) return length;
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}
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pUdp->UDP_CSR[AT91C_EP_IN] &= ~(AT91C_UDP_TXCOMP);
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while (pUdp->UDP_CSR[AT91C_EP_IN] & AT91C_UDP_TXCOMP);
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return length;
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}
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//*----------------------------------------------------------------------------
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//* \fn AT91F_USB_SendData
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//* \brief Send Data through the control endpoint
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//*----------------------------------------------------------------------------
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unsigned int csrTab[100] = {0x00};
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unsigned char csrIdx = 0;
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static void AT91F_USB_SendData(AT91PS_UDP pUdp, const char *pData, uint32_t length) {
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uint32_t cpt = 0;
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AT91_REG csr;
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do {
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cpt = MIN(length, 8);
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length -= cpt;
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while (cpt--)
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pUdp->UDP_FDR[0] = *pData++;
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if (pUdp->UDP_CSR[0] & AT91C_UDP_TXCOMP) {
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pUdp->UDP_CSR[0] &= ~(AT91C_UDP_TXCOMP);
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while (pUdp->UDP_CSR[0] & AT91C_UDP_TXCOMP);
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}
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pUdp->UDP_CSR[0] |= AT91C_UDP_TXPKTRDY;
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do {
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csr = pUdp->UDP_CSR[0];
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// Data IN stage has been stopped by a status OUT
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if (csr & AT91C_UDP_RX_DATA_BK0) {
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pUdp->UDP_CSR[0] &= ~(AT91C_UDP_RX_DATA_BK0);
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return;
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}
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} while ( !(csr & AT91C_UDP_TXCOMP) );
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} while (length);
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if (pUdp->UDP_CSR[0] & AT91C_UDP_TXCOMP) {
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pUdp->UDP_CSR[0] &= ~(AT91C_UDP_TXCOMP);
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while (pUdp->UDP_CSR[0] & AT91C_UDP_TXCOMP);
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}
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}
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//*----------------------------------------------------------------------------
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//* \fn AT91F_USB_SendZlp
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//* \brief Send zero length packet through the control endpoint
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//*----------------------------------------------------------------------------
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void AT91F_USB_SendZlp(AT91PS_UDP pUdp) {
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pUdp->UDP_CSR[0] |= AT91C_UDP_TXPKTRDY;
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while ( !(pUdp->UDP_CSR[0] & AT91C_UDP_TXCOMP) );
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pUdp->UDP_CSR[0] &= ~(AT91C_UDP_TXCOMP);
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while (pUdp->UDP_CSR[0] & AT91C_UDP_TXCOMP);
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}
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//*----------------------------------------------------------------------------
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//* \fn AT91F_USB_SendStall
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//* \brief Stall the control endpoint
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//*----------------------------------------------------------------------------
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void AT91F_USB_SendStall(AT91PS_UDP pUdp) {
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pUdp->UDP_CSR[0] |= AT91C_UDP_FORCESTALL;
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while ( !(pUdp->UDP_CSR[0] & AT91C_UDP_ISOERROR) );
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pUdp->UDP_CSR[0] &= ~(AT91C_UDP_FORCESTALL | AT91C_UDP_ISOERROR);
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while (pUdp->UDP_CSR[0] & (AT91C_UDP_FORCESTALL | AT91C_UDP_ISOERROR));
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}
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//*----------------------------------------------------------------------------
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//* \fn AT91F_CDC_Enumerate
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//* \brief This function is a callback invoked when a SETUP packet is received
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//*----------------------------------------------------------------------------
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void AT91F_CDC_Enumerate() {
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byte_t bmRequestType, bRequest;
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uint16_t wValue, wIndex, wLength, wStatus;
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|
|
if ( !(pUdp->UDP_CSR[0] & AT91C_UDP_RXSETUP) )
|
|
return;
|
|
|
|
bmRequestType = pUdp->UDP_FDR[0];
|
|
bRequest = pUdp->UDP_FDR[0];
|
|
wValue = (pUdp->UDP_FDR[0] & 0xFF);
|
|
wValue |= (pUdp->UDP_FDR[0] << 8);
|
|
wIndex = (pUdp->UDP_FDR[0] & 0xFF);
|
|
wIndex |= (pUdp->UDP_FDR[0] << 8);
|
|
wLength = (pUdp->UDP_FDR[0] & 0xFF);
|
|
wLength |= (pUdp->UDP_FDR[0] << 8);
|
|
|
|
if (bmRequestType & 0x80) {
|
|
pUdp->UDP_CSR[0] |= AT91C_UDP_DIR;
|
|
while ( !(pUdp->UDP_CSR[0] & AT91C_UDP_DIR) );
|
|
}
|
|
pUdp->UDP_CSR[0] &= ~AT91C_UDP_RXSETUP;
|
|
while ( (pUdp->UDP_CSR[0] & AT91C_UDP_RXSETUP) );
|
|
|
|
// Handle supported standard device request Cf Table 9-3 in USB specification Rev 1.1
|
|
switch ((bRequest << 8) | bmRequestType) {
|
|
case STD_GET_DESCRIPTOR:
|
|
if (wValue == 0x100) // Return Device Descriptor
|
|
AT91F_USB_SendData(pUdp, devDescriptor, MIN(sizeof(devDescriptor), wLength));
|
|
else if (wValue == 0x200) // Return Configuration Descriptor
|
|
AT91F_USB_SendData(pUdp, cfgDescriptor, MIN(sizeof(cfgDescriptor), wLength));
|
|
else if ((wValue & 0x300) == 0x300) // Return String Descriptor
|
|
AT91F_USB_SendData(pUdp, strDescriptor, MIN(sizeof(strDescriptor), wLength));
|
|
else
|
|
AT91F_USB_SendStall(pUdp);
|
|
break;
|
|
case STD_SET_ADDRESS:
|
|
AT91F_USB_SendZlp(pUdp);
|
|
pUdp->UDP_FADDR = (AT91C_UDP_FEN | wValue);
|
|
pUdp->UDP_GLBSTATE = (wValue) ? AT91C_UDP_FADDEN : 0;
|
|
break;
|
|
case STD_SET_CONFIGURATION:
|
|
btConfiguration = wValue;
|
|
AT91F_USB_SendZlp(pUdp);
|
|
pUdp->UDP_GLBSTATE = (wValue) ? AT91C_UDP_CONFG : AT91C_UDP_FADDEN;
|
|
pUdp->UDP_CSR[1] = (wValue) ? (AT91C_UDP_EPEDS | AT91C_UDP_EPTYPE_BULK_OUT) : 0;
|
|
pUdp->UDP_CSR[2] = (wValue) ? (AT91C_UDP_EPEDS | AT91C_UDP_EPTYPE_BULK_IN) : 0;
|
|
pUdp->UDP_CSR[3] = (wValue) ? (AT91C_UDP_EPEDS | AT91C_UDP_EPTYPE_INT_IN) : 0;
|
|
break;
|
|
case STD_GET_CONFIGURATION:
|
|
AT91F_USB_SendData(pUdp, (char *) &(btConfiguration), sizeof(btConfiguration));
|
|
break;
|
|
case STD_GET_STATUS_ZERO:
|
|
wStatus = 0;
|
|
AT91F_USB_SendData(pUdp, (char *) &wStatus, sizeof(wStatus));
|
|
break;
|
|
case STD_GET_STATUS_INTERFACE:
|
|
wStatus = 0;
|
|
AT91F_USB_SendData(pUdp, (char *) &wStatus, sizeof(wStatus));
|
|
break;
|
|
case STD_GET_STATUS_ENDPOINT:
|
|
wStatus = 0;
|
|
wIndex &= 0x0F;
|
|
if ((pUdp->UDP_GLBSTATE & AT91C_UDP_CONFG) && (wIndex <= 3)) {
|
|
wStatus = (pUdp->UDP_CSR[wIndex] & AT91C_UDP_EPEDS) ? 0 : 1;
|
|
AT91F_USB_SendData(pUdp, (char *) &wStatus, sizeof(wStatus));
|
|
}
|
|
else if ((pUdp->UDP_GLBSTATE & AT91C_UDP_FADDEN) && (wIndex == 0)) {
|
|
wStatus = (pUdp->UDP_CSR[wIndex] & AT91C_UDP_EPEDS) ? 0 : 1;
|
|
AT91F_USB_SendData(pUdp, (char *) &wStatus, sizeof(wStatus));
|
|
}
|
|
else
|
|
AT91F_USB_SendStall(pUdp);
|
|
break;
|
|
case STD_SET_FEATURE_ZERO:
|
|
AT91F_USB_SendStall(pUdp);
|
|
break;
|
|
case STD_SET_FEATURE_INTERFACE:
|
|
AT91F_USB_SendZlp(pUdp);
|
|
break;
|
|
case STD_SET_FEATURE_ENDPOINT:
|
|
wIndex &= 0x0F;
|
|
if ((wValue == 0) && wIndex && (wIndex <= 3)) {
|
|
pUdp->UDP_CSR[wIndex] = 0;
|
|
AT91F_USB_SendZlp(pUdp);
|
|
}
|
|
else
|
|
AT91F_USB_SendStall(pUdp);
|
|
break;
|
|
case STD_CLEAR_FEATURE_ZERO:
|
|
AT91F_USB_SendStall(pUdp);
|
|
break;
|
|
case STD_CLEAR_FEATURE_INTERFACE:
|
|
AT91F_USB_SendZlp(pUdp);
|
|
break;
|
|
case STD_CLEAR_FEATURE_ENDPOINT:
|
|
wIndex &= 0x0F;
|
|
if ((wValue == 0) && wIndex && (wIndex <= 3)) {
|
|
if (wIndex == 1)
|
|
pUdp->UDP_CSR[1] = (AT91C_UDP_EPEDS | AT91C_UDP_EPTYPE_BULK_OUT);
|
|
else if (wIndex == 2)
|
|
pUdp->UDP_CSR[2] = (AT91C_UDP_EPEDS | AT91C_UDP_EPTYPE_BULK_IN);
|
|
else if (wIndex == 3)
|
|
pUdp->UDP_CSR[3] = (AT91C_UDP_EPEDS | AT91C_UDP_EPTYPE_ISO_IN);
|
|
AT91F_USB_SendZlp(pUdp);
|
|
}
|
|
else
|
|
AT91F_USB_SendStall(pUdp);
|
|
break;
|
|
|
|
// handle CDC class requests
|
|
case SET_LINE_CODING:
|
|
while ( !(pUdp->UDP_CSR[0] & AT91C_UDP_RX_DATA_BK0) );
|
|
pUdp->UDP_CSR[0] &= ~(AT91C_UDP_RX_DATA_BK0);
|
|
AT91F_USB_SendZlp(pUdp);
|
|
break;
|
|
case GET_LINE_CODING:
|
|
AT91F_USB_SendData(pUdp, (char *) &line, MIN(sizeof(line), wLength));
|
|
break;
|
|
case SET_CONTROL_LINE_STATE:
|
|
btConnection = wValue;
|
|
AT91F_USB_SendZlp(pUdp);
|
|
break;
|
|
default:
|
|
AT91F_USB_SendStall(pUdp);
|
|
break;
|
|
}
|
|
}
|