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FMC ADC 100M 14b 4cha - Software
Commit 78c43fbf authored by Alessandro Rubini's avatar Alessandro Rubini
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kernel: endian-convert EEPROM calibration data 

Signed-off-by: Alessandro Rubini's avatarAlessandro Rubini <rubini@gnudd.com>
parent 53dc6acd
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Showing with 13 additions and 3 deletions
kernel/fa-zio-drv.c
View file @ 78c43fbf
......@@ -4,8 +4,6 @@
*
* Driver for the mezzanine ADC for the SPEC
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
......@@ -21,6 +19,8 @@
#include <linux/zio-buffer.h>
#include <linux/zio-trigger.h>
#include <asm/byteorder.h>
#include "fmc-adc.h"
int enable_auto_start = 0;
......@@ -28,7 +28,6 @@ static int enable_test_data = 0;
module_param(enable_test_data, int, 0444);
/*
* zio device attributes
*/
......@@ -1037,6 +1036,16 @@ static void zfad_verify_calib(struct device *msgdev,
}
}
static void zfad_endian_calib(struct fa_calib *calib)
{
int i;
uint16_t *p = (void *)calib;
/* We know for sure that our structure is only made of 16bit fields */
for (i = 0; i < sizeof(*calib) / sizeof(uint16_t); i++)
le16_to_cpus(p + i); /* s == in situ */
}
/* * * * * * * * * * * * * * * * Initialization * * * * * * * * * * * * * * */
/*
......@@ -1057,6 +1066,7 @@ static int zfad_zio_probe(struct zio_device *zdev)
/* Retrieve calibration data from the eeprom, then verify it */
memcpy(&fa->calib, fa->fmc->eeprom + FA_CAL_OFFSET, sizeof(fa->calib));
zfad_endian_calib(&fa->calib);
zfad_verify_calib(&fa->fmc->dev, &fa->calib, &fa_identity_calib);
/* Configure GPIO for IRQ */
......
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