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Si5351C: Extract low-level driver code.

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This commit is contained in:
Jared Boone
2014-11-04 09:58:31 -08:00
parent 7e81647f0d
commit 0bf84d974e
7 changed files with 120 additions and 54 deletions
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1
firmware/common/hackrf_core.c
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@ -23,6 +23,7 @@
#include "hackrf_core.h"
#include "si5351c.h"
#include "si5351c_drv.h"
#include "max2837.h"
#include "rffc5071.h"
#include "sgpio.h"

50
firmware/common/si5351c.c
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@ -21,57 +21,11 @@
*/
#include "si5351c.h"
#include <libopencm3/lpc43xx/i2c.h>
#include "si5351c_drv.h"
enum pll_sources active_clock_source;
/* FIXME return i2c0 status from each function */
/* write to single register */
void si5351c_write_single(uint8_t reg, uint8_t val)
{
i2c0_tx_start();
i2c0_tx_byte(SI5351C_I2C_ADDR | I2C_WRITE);
i2c0_tx_byte(reg);
i2c0_tx_byte(val);
i2c0_stop();
}
/* read single register */
uint8_t si5351c_read_single(uint8_t reg)
{
uint8_t val;
/* set register address with write */
i2c0_tx_start();
i2c0_tx_byte(SI5351C_I2C_ADDR | I2C_WRITE);
i2c0_tx_byte(reg);
/* read the value */
i2c0_tx_start();
i2c0_tx_byte(SI5351C_I2C_ADDR | I2C_READ);
val = i2c0_rx_byte();
i2c0_stop();
return val;
}
/*
* Write to one or more contiguous registers. data[0] should be the first
* register number, one or more values follow.
*/
void si5351c_write(uint8_t* const data, const uint_fast8_t data_count)
{
uint_fast8_t i;
i2c0_tx_start();
i2c0_tx_byte(SI5351C_I2C_ADDR | I2C_WRITE);
for (i = 0; i < data_count; i++)
i2c0_tx_byte(data[i]);
i2c0_stop();
}
/* Disable all CLKx outputs. */
void si5351c_disable_all_outputs()
{

5
firmware/common/si5351c.h
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@ -31,7 +31,6 @@ extern "C"
#include <stdint.h>
#define SI_INTDIV(x) (x*128-512)
#define SI5351C_I2C_ADDR (0x60 << 1)
#define SI5351C_CLK_POWERDOWN (1<<7)
#define SI5351C_CLK_INT_MODE (1<<6)
@ -76,10 +75,6 @@ void si5351c_configure_multisynth(const uint_fast8_t ms_number,
void si5351c_configure_clock_control(const enum pll_sources source);
void si5351c_enable_clock_outputs();
void si5351c_set_int_mode(const uint_fast8_t ms_number, const uint_fast8_t on);
void si5351c_write_single(uint8_t reg, uint8_t val);
uint8_t si5351c_read_single(uint8_t reg);
void si5351c_write(uint8_t* const data, const uint_fast8_t data_count);
void si5351c_set_clock_source(const enum pll_sources source);
void si5351c_activate_best_clock_source(void);

74
firmware/common/si5351c_drv.c Normal file
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@ -0,0 +1,74 @@
/*
* Copyright 2012 Michael Ossmann <mike@ossmann.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 "si5351c_drv.h"
#include <libopencm3/lpc43xx/i2c.h>
#define SI5351C_I2C_ADDR (0x60 << 1)
/* FIXME return i2c0 status from each function */
/* write to single register */
void si5351c_write_single(uint8_t reg, uint8_t val)
{
i2c0_tx_start();
i2c0_tx_byte(SI5351C_I2C_ADDR | I2C_WRITE);
i2c0_tx_byte(reg);
i2c0_tx_byte(val);
i2c0_stop();
}
/* read single register */
uint8_t si5351c_read_single(uint8_t reg)
{
uint8_t val;
/* set register address with write */
i2c0_tx_start();
i2c0_tx_byte(SI5351C_I2C_ADDR | I2C_WRITE);
i2c0_tx_byte(reg);
/* read the value */
i2c0_tx_start();
i2c0_tx_byte(SI5351C_I2C_ADDR | I2C_READ);
val = i2c0_rx_byte();
i2c0_stop();
return val;
}
/*
* Write to one or more contiguous registers. data[0] should be the first
* register number, one or more values follow.
*/
void si5351c_write(uint8_t* const data, const uint_fast8_t data_count)
{
uint_fast8_t i;
i2c0_tx_start();
i2c0_tx_byte(SI5351C_I2C_ADDR | I2C_WRITE);
for (i = 0; i < data_count; i++)
i2c0_tx_byte(data[i]);
i2c0_stop();
}

41
firmware/common/si5351c_drv.h Normal file
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@ -0,0 +1,41 @@
/*
* Copyright 2012 Michael Ossmann <mike@ossmann.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.
*/
#ifndef __SI5351C_DRV_H
#define __SI5351C_DRV_H
#ifdef __cplusplus
extern "C"
{
#endif
#include <stdint.h>
void si5351c_write_single(uint8_t reg, uint8_t val);
uint8_t si5351c_read_single(uint8_t reg);
void si5351c_write(uint8_t* const data, const uint_fast8_t data_count);
#ifdef __cplusplus
}
#endif
#endif /* __SI5351C_DRV_H */

1
firmware/hackrf-common.cmake
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@ -134,6 +134,7 @@ macro(DeclareTargets)
${PATH_HACKRF_FIRMWARE_COMMON}/sgpio.c
${PATH_HACKRF_FIRMWARE_COMMON}/rf_path.c
${PATH_HACKRF_FIRMWARE_COMMON}/si5351c.c
${PATH_HACKRF_FIRMWARE_COMMON}/si5351c_drv.c
${PATH_HACKRF_FIRMWARE_COMMON}/max2837.c
${PATH_HACKRF_FIRMWARE_COMMON}/max5864.c
${PATH_HACKRF_FIRMWARE_COMMON}/rffc5071.c

2
firmware/hackrf_usb/usb_api_register.c
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@ -24,7 +24,7 @@
#include <usb_queue.h>
#include <max2837.h>
#include <si5351c.h>
#include <si5351c_drv.h>
#include <rffc5071.h>
#include <stddef.h>