139 lines
4.6 KiB
C
139 lines
4.6 KiB
C
/*
|
|
* This file is part of the MicroPython project, http://micropython.org/
|
|
*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2019 Damien P. George
|
|
*
|
|
* 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 THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS 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.
|
|
*/
|
|
|
|
#include "tusb.h"
|
|
#include "mphalport.h"
|
|
|
|
#ifndef MICROPY_HW_USB_VID
|
|
#define MICROPY_HW_USB_VID (0xf055)
|
|
#endif
|
|
|
|
#ifndef MICROPY_HW_USB_PID
|
|
#define MICROPY_HW_USB_PID (0x9802)
|
|
#endif
|
|
|
|
#ifndef MICROPY_HW_USB_MANUFACTURER_STRING
|
|
#define MICROPY_HW_USB_MANUFACTURER_STRING ("MicroPython")
|
|
#endif
|
|
|
|
#define USBD_DESC_LEN (TUD_CONFIG_DESC_LEN + TUD_CDC_DESC_LEN)
|
|
#define USBD_MAX_POWER_MA (250)
|
|
|
|
#define USBD_ITF_CDC (0) // needs 2 interfaces
|
|
#define USBD_ITF_MAX (2)
|
|
|
|
#define USBD_CDC_EP_CMD (0x81)
|
|
#define USBD_CDC_EP_OUT (0x02)
|
|
#define USBD_CDC_EP_IN (0x82)
|
|
#define USBD_CDC_CMD_MAX_SIZE (8)
|
|
#define USBD_CDC_IN_OUT_MAX_SIZE (512)
|
|
|
|
#define USBD_STR_0 (0x00)
|
|
#define USBD_STR_MANUF (0x01)
|
|
#define USBD_STR_PRODUCT (0x02)
|
|
#define USBD_STR_SERIAL (0x03)
|
|
#define USBD_STR_CDC (0x04)
|
|
|
|
// Note: descriptors returned from callbacks must exist long enough for transfer to complete
|
|
|
|
static const tusb_desc_device_t usbd_desc_device = {
|
|
.bLength = sizeof(tusb_desc_device_t),
|
|
.bDescriptorType = TUSB_DESC_DEVICE,
|
|
.bcdUSB = 0x0200,
|
|
.bDeviceClass = TUSB_CLASS_MISC,
|
|
.bDeviceSubClass = MISC_SUBCLASS_COMMON,
|
|
.bDeviceProtocol = MISC_PROTOCOL_IAD,
|
|
.bMaxPacketSize0 = CFG_TUD_ENDPOINT0_SIZE,
|
|
.idVendor = MICROPY_HW_USB_VID,
|
|
.idProduct = MICROPY_HW_USB_PID,
|
|
.bcdDevice = 0x0100,
|
|
.iManufacturer = USBD_STR_MANUF,
|
|
.iProduct = USBD_STR_PRODUCT,
|
|
.iSerialNumber = USBD_STR_SERIAL,
|
|
.bNumConfigurations = 1,
|
|
};
|
|
|
|
static const uint8_t usbd_desc_cfg[USBD_DESC_LEN] = {
|
|
TUD_CONFIG_DESCRIPTOR(1, USBD_ITF_MAX, USBD_STR_0, USBD_DESC_LEN,
|
|
TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, USBD_MAX_POWER_MA),
|
|
|
|
TUD_CDC_DESCRIPTOR(USBD_ITF_CDC, USBD_STR_CDC, USBD_CDC_EP_CMD,
|
|
USBD_CDC_CMD_MAX_SIZE, USBD_CDC_EP_OUT, USBD_CDC_EP_IN, USBD_CDC_IN_OUT_MAX_SIZE),
|
|
};
|
|
|
|
static const char *const usbd_desc_str[] = {
|
|
[USBD_STR_MANUF] = MICROPY_HW_USB_MANUFACTURER_STRING,
|
|
[USBD_STR_PRODUCT] = MICROPY_HW_BOARD_NAME,
|
|
[USBD_STR_SERIAL] = "00000000000000000000",
|
|
[USBD_STR_CDC] = "Board CDC",
|
|
};
|
|
|
|
const uint8_t *tud_descriptor_device_cb(void) {
|
|
return (const uint8_t *)&usbd_desc_device;
|
|
}
|
|
|
|
const uint8_t *tud_descriptor_configuration_cb(uint8_t index) {
|
|
(void)index;
|
|
return usbd_desc_cfg;
|
|
}
|
|
|
|
const uint16_t *tud_descriptor_string_cb(uint8_t index, uint16_t langid) {
|
|
#define DESC_STR_MAX (20)
|
|
static uint16_t desc_str[DESC_STR_MAX];
|
|
static const char hexchr[16] = "0123456789ABCDEF";
|
|
|
|
memset(desc_str, 0, sizeof(desc_str));
|
|
|
|
uint8_t len;
|
|
if (index == 0) {
|
|
desc_str[1] = 0x0409; // supported language is English
|
|
len = 1;
|
|
} else {
|
|
if (index >= sizeof(usbd_desc_str) / sizeof(usbd_desc_str[0])) {
|
|
return NULL;
|
|
}
|
|
if (index == USBD_STR_SERIAL) {
|
|
uint8_t uid[8];
|
|
mp_hal_get_unique_id(uid);
|
|
// store it as a hex string
|
|
for (len = 0; len < 16; len += 2) {
|
|
desc_str[1 + len] = hexchr[uid[len / 2] >> 4];
|
|
desc_str[1 + len + 1] = hexchr[uid[len / 2] & 0x0f];
|
|
}
|
|
} else {
|
|
const char *str = usbd_desc_str[index];
|
|
for (len = 0; len < DESC_STR_MAX - 1 && str[len]; ++len) {
|
|
desc_str[1 + len] = str[len];
|
|
}
|
|
}
|
|
}
|
|
|
|
// first byte is length (including header), second byte is string type
|
|
desc_str[0] = (TUSB_DESC_STRING << 8) | (2 * len + 2);
|
|
|
|
return desc_str;
|
|
}
|