circuitpython/stmhal/usbd_desc_cdc_msc.c

192 lines
6.9 KiB
C

/*
* This file is part of the Micro Python project, http://micropython.org/
*/
/**
******************************************************************************
* @file USB_Device/CDC_Standalone/Src/usbd_desc.c
* @author MCD Application Team
* @version V1.0.1
* @date 26-February-2014
* @brief This file provides the USBD descriptors and string formating method.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
#include "usbd_core.h"
#include "usbd_desc.h"
#include "usbd_conf.h"
// So we don't clash with existing ST boards, we use the unofficial FOSS VID.
// This needs a proper solution.
#define USBD_VID 0xf055
#define USBD_PID 0x9800
#define USBD_LANGID_STRING 0x409
#define USBD_MANUFACTURER_STRING "Micro Python"
#define USBD_PRODUCT_HS_STRING "Pyboard Virtual Comm Port in HS Mode"
#define USBD_SERIALNUMBER_HS_STRING "000000000010"
#define USBD_PRODUCT_FS_STRING "Pyboard Virtual Comm Port in FS Mode"
#define USBD_SERIALNUMBER_FS_STRING "000000000011"
#define USBD_CONFIGURATION_HS_STRING "VCP Config"
#define USBD_INTERFACE_HS_STRING "VCP Interface"
#define USBD_CONFIGURATION_FS_STRING "VCP Config"
#define USBD_INTERFACE_FS_STRING "VCP Interface"
// USB Standard Device Descriptor
__ALIGN_BEGIN static uint8_t hUSBDDeviceDesc[USB_LEN_DEV_DESC] __ALIGN_END = {
0x12, // bLength
USB_DESC_TYPE_DEVICE, // bDescriptorType
0x00, // bcdUSB
0x02,
0x00, // bDeviceClass
0x00, // bDeviceSubClass
0x00, // bDeviceProtocol
USB_MAX_EP0_SIZE, // bMaxPacketSize
LOBYTE(USBD_VID), // idVendor
HIBYTE(USBD_VID), // idVendor
LOBYTE(USBD_PID), // idVendor
HIBYTE(USBD_PID), // idVendor
0x00, // bcdDevice rel. 2.00
0x02,
USBD_IDX_MFC_STR, // Index of manufacturer string
USBD_IDX_PRODUCT_STR, // Index of product string
USBD_IDX_SERIAL_STR, // Index of serial number string
USBD_MAX_NUM_CONFIGURATION // bNumConfigurations
};
__ALIGN_BEGIN static uint8_t USBD_LangIDDesc[USB_LEN_LANGID_STR_DESC] __ALIGN_END = {
USB_LEN_LANGID_STR_DESC,
USB_DESC_TYPE_STRING,
LOBYTE(USBD_LANGID_STRING),
HIBYTE(USBD_LANGID_STRING),
};
__ALIGN_BEGIN static uint8_t USBD_StrDesc[USBD_MAX_STR_DESC_SIZ] __ALIGN_END;
// set the PID
void USBD_SetPID(uint16_t pid) {
hUSBDDeviceDesc[10] = LOBYTE(pid);
hUSBDDeviceDesc[11] = HIBYTE(pid);
}
/**
* @brief Returns the device descriptor.
* @param speed: Current device speed
* @param length: Pointer to data length variable
* @retval Pointer to descriptor buffer
*/
STATIC uint8_t *USBD_VCP_DeviceDescriptor(USBD_SpeedTypeDef speed, uint16_t *length) {
*length = sizeof(hUSBDDeviceDesc);
return hUSBDDeviceDesc;
}
/**
* @brief Returns the LangID string descriptor.
* @param speed: Current device speed
* @param length: Pointer to data length variable
* @retval Pointer to descriptor buffer
*/
STATIC uint8_t *USBD_VCP_LangIDStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length) {
*length = sizeof(USBD_LangIDDesc);
return USBD_LangIDDesc;
}
/**
* @brief Returns the product string descriptor.
* @param speed: Current device speed
* @param length: Pointer to data length variable
* @retval Pointer to descriptor buffer
*/
STATIC uint8_t *USBD_VCP_ProductStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length) {
if(speed == 0) {
USBD_GetString((uint8_t *)USBD_PRODUCT_HS_STRING, USBD_StrDesc, length);
} else {
USBD_GetString((uint8_t *)USBD_PRODUCT_FS_STRING, USBD_StrDesc, length);
}
return USBD_StrDesc;
}
/**
* @brief Returns the manufacturer string descriptor.
* @param speed: Current device speed
* @param length: Pointer to data length variable
* @retval Pointer to descriptor buffer
*/
STATIC uint8_t *USBD_VCP_ManufacturerStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length) {
USBD_GetString((uint8_t *)USBD_MANUFACTURER_STRING, USBD_StrDesc, length);
return USBD_StrDesc;
}
/**
* @brief Returns the serial number string descriptor.
* @param speed: Current device speed
* @param length: Pointer to data length variable
* @retval Pointer to descriptor buffer
*/
STATIC uint8_t *USBD_VCP_SerialStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length) {
if(speed == USBD_SPEED_HIGH) {
USBD_GetString((uint8_t *)USBD_SERIALNUMBER_HS_STRING, USBD_StrDesc, length);
} else {
USBD_GetString((uint8_t *)USBD_SERIALNUMBER_FS_STRING, USBD_StrDesc, length);
}
return USBD_StrDesc;
}
/**
* @brief Returns the configuration string descriptor.
* @param speed: Current device speed
* @param length: Pointer to data length variable
* @retval Pointer to descriptor buffer
*/
STATIC uint8_t *USBD_VCP_ConfigStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length) {
if(speed == USBD_SPEED_HIGH) {
USBD_GetString((uint8_t *)USBD_CONFIGURATION_HS_STRING, USBD_StrDesc, length);
} else {
USBD_GetString((uint8_t *)USBD_CONFIGURATION_FS_STRING, USBD_StrDesc, length);
}
return USBD_StrDesc;
}
/**
* @brief Returns the interface string descriptor.
* @param speed: Current device speed
* @param length: Pointer to data length variable
* @retval Pointer to descriptor buffer
*/
STATIC uint8_t *USBD_VCP_InterfaceStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length) {
if(speed == 0) {
USBD_GetString((uint8_t *)USBD_INTERFACE_HS_STRING, USBD_StrDesc, length);
} else {
USBD_GetString((uint8_t *)USBD_INTERFACE_FS_STRING, USBD_StrDesc, length);
}
return USBD_StrDesc;
}
const USBD_DescriptorsTypeDef VCP_Desc = {
USBD_VCP_DeviceDescriptor,
USBD_VCP_LangIDStrDescriptor,
USBD_VCP_ManufacturerStrDescriptor,
USBD_VCP_ProductStrDescriptor,
USBD_VCP_SerialStrDescriptor,
USBD_VCP_ConfigStrDescriptor,
USBD_VCP_InterfaceStrDescriptor,
};
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/