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