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