mirror of
https://github.com/greatscottgadgets/hackrf.git
synced 2026-03-24 16:18:06 +01:00
45 lines
1.4 KiB
C
45 lines
1.4 KiB
C
/*
|
|
* Copyright 2026 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 "da7219.h"
|
|
#include "hackrf_core.h"
|
|
#include "i2c_bus.h"
|
|
|
|
#define DA7219_REG_CHIP_ID1 0x81
|
|
#define DA7219_REG_CHIP_ID2 0x82
|
|
|
|
i2c_bus_t* const da7219_bus = &i2c0;
|
|
|
|
uint8_t da7219_read_reg(i2c_bus_t* const bus, uint8_t reg)
|
|
{
|
|
const uint8_t data_tx[] = {reg};
|
|
uint8_t data_rx[] = {0x00};
|
|
i2c_bus_transfer(bus, DA7219_ADDRESS, data_tx, 1, data_rx, 1);
|
|
return data_rx[0];
|
|
}
|
|
|
|
bool da7219_detect(void)
|
|
{
|
|
uint8_t chip_id1 = da7219_read_reg(da7219_bus, DA7219_REG_CHIP_ID1);
|
|
uint8_t chip_id2 = da7219_read_reg(da7219_bus, DA7219_REG_CHIP_ID2);
|
|
return (chip_id1 == 0x23) && (chip_id2 == 0x93);
|
|
}
|