mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-06 05:04:26 +00:00
5b218ae106
The old mail address will stop working soon. Update it all the files Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Tom Rini <trini@konsulko.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Michal Simek <michal.simek@xilinx.com>
73 lines
1.3 KiB
C
73 lines
1.3 KiB
C
/*
|
|
* (C) Copyright 2008
|
|
* Ricado Ribalda-Universidad Autonoma de Madrid, ricardo.ribalda@gmail.com
|
|
* This work has been supported by: QTechnology http://qtec.com/
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <i2c.h>
|
|
#include <dtt.h>
|
|
|
|
#define ADT7460_ADDRESS 0x2c
|
|
#define ADT7460_INVALID 128
|
|
#define ADT7460_CONFIG 0x40
|
|
#define ADT7460_REM1_TEMP 0x25
|
|
#define ADT7460_LOCAL_TEMP 0x26
|
|
#define ADT7460_REM2_TEMP 0x27
|
|
|
|
int dtt_read(int sensor, int reg)
|
|
{
|
|
u8 dir = reg;
|
|
u8 data;
|
|
|
|
if (i2c_read(ADT7460_ADDRESS, dir, 1, &data, 1) == -1)
|
|
return -1;
|
|
if (data == ADT7460_INVALID)
|
|
return -1;
|
|
|
|
return data;
|
|
}
|
|
|
|
int dtt_write(int sensor, int reg, int val)
|
|
{
|
|
u8 dir = reg;
|
|
u8 data = val;
|
|
|
|
if (i2c_write(ADT7460_ADDRESS, dir, 1, &data, 1) == -1)
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int dtt_init_one(int sensor)
|
|
{
|
|
printf("ADT7460 at I2C address 0x%2x\n", ADT7460_ADDRESS);
|
|
|
|
if (dtt_write(0, ADT7460_CONFIG, 1) == -1) {
|
|
puts("Error initialiting ADT7460\n");
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int dtt_get_temp(int sensor)
|
|
{
|
|
int aux;
|
|
u8 table[] =
|
|
{ ADT7460_REM1_TEMP, ADT7460_LOCAL_TEMP, ADT7460_REM2_TEMP };
|
|
|
|
if (sensor > 2) {
|
|
puts("DTT sensor does not exist\n");
|
|
return -1;
|
|
}
|
|
|
|
aux = dtt_read(0, table[sensor]);
|
|
if (aux == -1) {
|
|
puts("DTT temperature read failed\n");
|
|
return -1;
|
|
}
|
|
|
|
return aux;
|
|
}
|