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/*
* Copyright 2025 Great Scott Gadgets <info@greatscottgadgets.com>
*
* This file is part of HackRF.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#include <stddef.h>
#include <usb_queue.h>
#include "adc.h"
#include "usb_api_adc.h"
usb_request_status_t usb_vendor_request_adc_read(
usb_endpoint_t* const endpoint,
const usb_transfer_stage_t stage)
{
if (stage == USB_TRANSFER_STAGE_SETUP) {
if ((endpoint->setup.index & ~0x80) > 7) {
return USB_REQUEST_STATUS_STALL;
}
uint16_t value = adc_read(endpoint->setup.index);
adc_off();
endpoint->buffer[0] = value & 0xff;
endpoint->buffer[1] = value >> 8;
usb_transfer_schedule_block(
endpoint->in,
&endpoint->buffer,
2,
NULL,
NULL);
usb_transfer_schedule_ack(endpoint->out);
return USB_REQUEST_STATUS_OK;
}
return USB_REQUEST_STATUS_OK;
}
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