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descriptors.h
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descriptors.h
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/*******************************************************************************
* Copyright (C) 2016-2022 Maxim Integrated Products, Inc., All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
* OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* Except as contained in this notice, the name of Maxim Integrated
* Products, Inc. shall not be used except as stated in the Maxim Integrated
* Products, Inc. Branding Policy.
*
* The mere transfer of this software does not imply any licenses
* of trade secrets, proprietary technology, copyrights, patents,
* trademarks, maskwork rights, or any other form of intellectual
* property whatsoever. Maxim Integrated Products, Inc. retains all
* ownership rights.
*
*******************************************************************************
*/
#ifndef _DESCRIPTORS_H_
#define _DESCRIPTORS_H_
#include <stdint.h>
#include "usb.h"
usb_device_descriptor_t __attribute__((aligned(4))) device_descriptor = {
0x12, /* bLength = 18 */
0x01, /* bDescriptorType = Device */
0x0110, /* bcdUSB USB spec rev (BCD) */
0x02, /* bDeviceClass = comm class (2) */
0x00, /* bDeviceSubClass */
0x00, /* bDeviceProtocol */
0x40, /* bMaxPacketSize0 is 64 bytes */
0x0B6A, /* idVendor (Maxim Integrated) */
0x003C, /* idProduct */
0x0100, /* bcdDevice */
0x01, /* iManufacturer Descriptor ID */
0x02, /* iProduct Descriptor ID */
0x00, /* iSerialNumber = (0) No string */
0x01 /* bNumConfigurations */
};
__attribute__((aligned(4)))
struct __attribute__((packed)) {
usb_configuration_descriptor_t config_descriptor;
usb_interface_descriptor_t comm_interface_descriptor;
uint8_t header_functional_descriptor[5];
uint8_t call_management_descriptor[5];
uint8_t acm_functional_descriptor[4];
uint8_t union_functional_descriptor[5];
usb_endpoint_descriptor_t endpoint_descriptor_3;
usb_interface_descriptor_t data_interface_descriptor;
usb_endpoint_descriptor_t endpoint_descriptor_1;
usb_endpoint_descriptor_t endpoint_descriptor_2;
} config_descriptor =
{
{
0x09, /* bLength = 9 */
0x02, /* bDescriptorType = Config (2) */
0x0043, /* wTotalLength(L/H) */
0x02, /* bNumInterfaces */
0x01, /* bConfigValue */
0x00, /* iConfiguration */
0xE0, /* bmAttributes (self-powered, remote wakeup) */
0x01, /* MaxPower is 2ma (units are 2ma/bit) */
},
{ /* First Interface Descriptor For Comm Class Interface */
0x09, /* bLength = 9 */
0x04, /* bDescriptorType = Interface (4) */
0x00, /* bInterfaceNumber */
0x00, /* bAlternateSetting */
0x01, /* bNumEndpoints (one for OUT) */
0x02, /* bInterfaceClass = Communications Interface Class (2) */
0x02, /* bInterfaceSubClass = Abstract Control Model (2) */
0x01, /* bInterfaceProtocol = Common "AT" commands (1), no class specific protocol (0) */
0x00, /* iInterface */
},
{ /* Header Functional Descriptor */
0x05, /* bFunctionalLength = 5 */
0x24, /* bDescriptorType */
0x00, /* bDescriptorSubtype */
0x10, 0x01, /* bcdCDC */
},
{ /* Call Management Descriptor */
0x05, /* bFunctionalLength = 5 */
0x24, /* bDescriptorType */
0x01, /* bDescriptorSubtype */
0x03, /* bmCapabilities = Device handles call management itself (0x01), management over data class (0x02) */
0x01, /* bmDataInterface */
},
{ /* Abstract Control Management Functional Descriptor */
0x04, /* bFunctionalLength = 4 */
0x24, /* bDescriptorType */
0x02, /* bDescriptorSubtype */
0x02, /* bmCapabilities */
},
{ /* Union Functional Descriptor */
0x05, /* bFunctionalLength = 5 */
0x24, /* bDescriptorType */
0x06, /* bDescriptorSubtype */
0x00, /* bmMasterInterface */
0x01, /* bmSlaveInterface0 */
},
{ /* IN Endpoint 3 (Descriptor #1) */
0x07, /* bLength */
0x05, /* bDescriptorType (Endpoint) */
0x83, /* bEndpointAddress (EP3-IN) */
0x03, /* bmAttributes (interrupt) */
0x0040, /* wMaxPacketSize */
0xff, /* bInterval (milliseconds) */
},
{ /* Second Interface Descriptor For Data Interface */
0x09, /* bLength */
0x04, /* bDescriptorType (Interface) */
0x01, /* bInterfaceNumber */
0x00, /* bAlternateSetting */
0x02, /* bNumEndpoints */
0x0a, /* bInterfaceClass = Data Interface (10) */
0x00, /* bInterfaceSubClass = none (0) */
0x00, /* bInterfaceProtocol = No class specific protocol (0) */
0x00, /* biInterface = No Text String (0) */
},
{ /* OUT Endpoint 1 (Descriptor #2) */
0x07, /* bLength */
0x05, /* bDescriptorType (Endpoint) */
0x01, /* bEndpointAddress (EP1-OUT) */
0x02, /* bmAttributes (bulk) */
0x0040, /* wMaxPacketSize */
0x00, /* bInterval (N/A) */
},
{ /* IN Endpoint 2 (Descriptor #3) */
0x07, /* bLength */
0x05, /* bDescriptorType (Endpoint) */
0x82, /* bEndpointAddress (EP2-IN) */
0x02, /* bmAttributes (bulk) */
0x0040, /* wMaxPacketSize */
0x00 /* bInterval (N/A) */
}
};
__attribute__((aligned(4)))
uint8_t lang_id_desc[] = {
0x04, /* bLength */
0x03, /* bDescriptorType */
0x09, 0x04 /* bString = wLANGID (see usb_20.pdf 9.6.7 String) */
};
__attribute__((aligned(4)))
uint8_t mfg_id_desc[] = {
0x22, /* bLength */
0x03, /* bDescriptorType */
'M', 0,
'a', 0,
'x', 0,
'i', 0,
'm', 0,
' ', 0,
'I', 0,
'n', 0,
't', 0,
'e', 0,
'g', 0,
'r', 0,
'a', 0,
't', 0,
'e', 0,
'd', 0,
};
__attribute__((aligned(4)))
uint8_t prod_id_desc[] = {
0x22, /* bLength */
0x03, /* bDescriptorType */
'M', 0,
'A', 0,
'X', 0,
'3', 0,
'2', 0,
'6', 0,
'2', 0,
'5', 0,
' ', 0,
'C', 0,
'D', 0,
'C', 0,
'-', 0,
'A', 0,
'C', 0,
'M', 0,
};
/* Not currently used (see device descriptor), but could be enabled if desired */
__attribute__((aligned(4)))
uint8_t serial_id_desc[] = {
0x14, /* bLength */
0x03, /* bDescriptorType */
'0', 0,
'0', 0,
'0', 0,
'0', 0,
'0', 0,
'0', 0,
'0', 0,
'0', 0,
'1', 0
};
#endif /* _DESCRIPTORS_H_ */