mirror of
https://github.com/saymrwulf/uhd.git
synced 2026-05-16 21:10:10 +00:00
42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
/*
|
|
* Copyright 2012 Ettus Research LLC
|
|
* Copyright 2008 Free Software Foundation, Inc.
|
|
*
|
|
* 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 3 of the License, 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. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "ad9510.h"
|
|
#include "spi.h"
|
|
#include <memory_map.h>
|
|
|
|
#define RD (1 << 15)
|
|
#define WR (0 << 15)
|
|
|
|
void
|
|
ad9510_write_reg(int regno, uint8_t value)
|
|
{
|
|
uint32_t inst = WR | (regno & 0xff);
|
|
uint32_t v = (inst << 8) | (value & 0xff);
|
|
spi_transact(SPI_TXONLY, SPI_SS_AD9510, v, 24, SPI_PUSH_FALL);
|
|
}
|
|
|
|
int
|
|
ad9510_read_reg(int regno)
|
|
{
|
|
uint32_t inst = RD | (regno & 0xff);
|
|
uint32_t v = (inst << 8) | 0;
|
|
uint32_t r = spi_transact(SPI_TXRX, SPI_SS_AD9510, v, 24,
|
|
SPI_PUSH_FALL | SPI_LATCH_FALL);
|
|
return r & 0xff;
|
|
}
|