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/*
* Copyright 2012-2022 Great Scott Gadgets <info@greatscottgadgets.com>
* Copyright 2012 Jared Boone <jared@sharebrained.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 <stdint.h>
#include "max5864.h"
static void max5864_write(max5864_driver_t* const drv, uint8_t value)
{
spi_bus_transfer(drv->bus, &value, 1);
}
static void max5864_init(max5864_driver_t* const drv)
{
drv->target_init(drv);
}
void max5864_setup(max5864_driver_t* const drv)
{
max5864_init(drv);
}
/* Set MAX5864 operation mode to "Shutdown":
* REF: off
* CLK: off
* ADCs: off (bus is tri-stated)
* DACs: off (set input bus to zero or OVdd)
*/
void max5864_shutdown(max5864_driver_t* const drv)
{
max5864_write(drv, 0x00);
}
/* Set MAX5864 operation mode to "Standby":
* REF: on
* CLK: off?
* ADCs: off (bus is tri-stated)
* DACs: off (set input bus to zero or OVdd)
*/
void max5864_standby(max5864_driver_t* const drv)
{
max5864_write(drv, 0x05);
}
/* Set MAX5864 operation mode to "Idle":
* REF: on
* CLK: on
* ADCs: off (bus is tri-stated)
* DACs: off (set input bus to zero or OVdd)
*/
void max5864_idle(max5864_driver_t* const drv)
{
max5864_write(drv, 0x01);
}
/* Set MAX5864 operation mode to "Rx":
* REF: on
* CLK: on
* ADCs: on
* DACs: off (set input bus to zero or OVdd)
*/
void max5864_rx(max5864_driver_t* const drv)
{
max5864_write(drv, 0x02);
}
/* Set MAX5864 operation mode to "Tx":
* REF: on
* CLK: on
* ADCs: off (bus is tri-stated)
* DACs: on
*/
void max5864_tx(max5864_driver_t* const drv)
{
max5864_write(drv, 0x03);
}
/* Set MAX5864 operation mode to "Xcvr":
* REF: on
* CLK: on
* ADCs: on
* DACs: on
*/
void max5864_xcvr(max5864_driver_t* const drv)
{
max5864_write(drv, 0x04);
}
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