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-rw-r--r--drivers/hwmon/lm75.c139
1 files changed, 0 insertions, 139 deletions
diff --git a/drivers/hwmon/lm75.c b/drivers/hwmon/lm75.c
deleted file mode 100644
index aafa475..0000000
--- a/drivers/hwmon/lm75.c
+++ /dev/null
@@ -1,139 +0,0 @@
-/*
- * (C) Copyright 2001
- * Bill Hunter, Wave 7 Optics, williamhunter@mediaone.net
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-/*
- * On Semiconductor's LM75 Temperature Sensor
- */
-
-#include <common.h>
-#include <i2c.h>
-#include <dtt.h>
-
-/*
- * Device code
- */
-#define DTT_I2C_DEV_CODE 0x48 /* ON Semi's LM75 device */
-#define DTT_READ_TEMP 0x0
-#define DTT_CONFIG 0x1
-#define DTT_TEMP_HYST 0x2
-#define DTT_TEMP_SET 0x3
-
-int dtt_read(int sensor, int reg)
-{
- int dlen;
- uchar data[2];
-
-#ifdef CONFIG_DTT_AD7414
- /*
- * On AD7414 the first value upon bootup is not read correctly.
- * This is most likely because of the 800ms update time of the
- * temp register in normal update mode. To get current values
- * each time we issue the "dtt" command including upon powerup
- * we switch into one-short mode.
- *
- * Issue one-shot mode command
- */
- dtt_write(sensor, DTT_CONFIG, 0x64);
-#endif
-
- /* Validate 'reg' param */
- if((reg < 0) || (reg > 3))
- return -1;
-
- /* Calculate sensor address and register. */
- sensor = DTT_I2C_DEV_CODE + (sensor & 0x07);
-
- /* Prepare to handle 2 byte result. */
- if ((reg == DTT_READ_TEMP) ||
- (reg == DTT_TEMP_HYST) ||
- (reg == DTT_TEMP_SET))
- dlen = 2;
- else
- dlen = 1;
-
- /* Now try to read the register. */
- if (i2c_read(sensor, reg, 1, data, dlen) != 0)
- return -1;
-
- /* Handle 2 byte result. */
- if (dlen == 2)
- return ((int)((short)data[1] + (((short)data[0]) << 8)));
-
- return (int)data[0];
-} /* dtt_read() */
-
-
-int dtt_write(int sensor, int reg, int val)
-{
- int dlen;
- uchar data[2];
-
- /* Validate 'reg' param */
- if ((reg < 0) || (reg > 3))
- return 1;
-
- /* Calculate sensor address and register. */
- sensor = DTT_I2C_DEV_CODE + (sensor & 0x07);
-
- /* Handle 2 byte values. */
- if ((reg == DTT_READ_TEMP) ||
- (reg == DTT_TEMP_HYST) ||
- (reg == DTT_TEMP_SET)) {
- dlen = 2;
- data[0] = (char)((val >> 8) & 0xff); /* MSB first */
- data[1] = (char)(val & 0xff);
- } else {
- dlen = 1;
- data[0] = (char)(val & 0xff);
- }
-
- /* Write value to register. */
- if (i2c_write(sensor, reg, 1, data, dlen) != 0)
- return 1;
-
- return 0;
-} /* dtt_write() */
-
-
-int dtt_init_one(int sensor)
-{
- int val;
-
- /* Setup TSET ( trip point ) register */
- val = ((CONFIG_SYS_DTT_MAX_TEMP * 2) << 7) & 0xff80; /* trip */
- if (dtt_write(sensor, DTT_TEMP_SET, val) != 0)
- return 1;
-
- /* Setup THYST ( untrip point ) register - Hysteresis */
- val = (((CONFIG_SYS_DTT_MAX_TEMP - CONFIG_SYS_DTT_HYSTERESIS) * 2) << 7) & 0xff80;
- if (dtt_write(sensor, DTT_TEMP_HYST, val) != 0)
- return 1;
-
- /* Setup configuraton register */
-#ifdef CONFIG_DTT_AD7414
- /* config = alert active low and disabled */
- val = 0x60;
-#else
- /* config = 6 sample integration, int mode, active low, and enable */
- val = 0x18;
-#endif
- if (dtt_write(sensor, DTT_CONFIG, val) != 0)
- return 1;
-
- return 0;
-} /* dtt_init_one() */
-
-int dtt_get_temp(int sensor)
-{
- int const ret = dtt_read(sensor, DTT_READ_TEMP);
-
- if (ret < 0) {
- printf("DTT temperature read failed.\n");
- return 0;
- }
- return (int)((int16_t) ret / 256);
-} /* dtt_get_temp() */