diff options
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/Makefile | 1 | ||||
| -rw-r--r-- | drivers/hwmon/adm1021.c | 4 | ||||
| -rw-r--r-- | drivers/hwmon/ds1621.c | 4 | ||||
| -rw-r--r-- | drivers/hwmon/ds1775.c | 6 | ||||
| -rw-r--r-- | drivers/hwmon/lm63.c | 174 | ||||
| -rw-r--r-- | drivers/hwmon/lm73.c | 4 | ||||
| -rw-r--r-- | drivers/hwmon/lm75.c | 232 |
7 files changed, 291 insertions, 134 deletions
diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile index 7f7d3db..59302fa 100644 --- a/drivers/hwmon/Makefile +++ b/drivers/hwmon/Makefile @@ -35,6 +35,7 @@ COBJS-$(CONFIG_DTT_ADT7460) += adt7460.o COBJS-$(CONFIG_DTT_DS1621) += ds1621.o COBJS-$(CONFIG_DTT_DS1722) += ds1722.o COBJS-$(CONFIG_DTT_DS1775) += ds1775.o +COBJS-$(CONFIG_DTT_LM63) += lm63.o COBJS-$(CONFIG_DTT_LM73) += lm73.o COBJS-$(CONFIG_DTT_LM75) += lm75.o COBJS-$(CONFIG_DTT_LM81) += lm81.o diff --git a/drivers/hwmon/adm1021.c b/drivers/hwmon/adm1021.c index b791ec0..d753e9a 100644 --- a/drivers/hwmon/adm1021.c +++ b/drivers/hwmon/adm1021.c @@ -81,7 +81,7 @@ typedef } dtt_cfg_t; -dtt_cfg_t dttcfg[] = CFG_DTT_ADM1021; +dtt_cfg_t dttcfg[] = CONFIG_SYS_DTT_ADM1021; int dtt_read (int sensor, int reg) @@ -174,7 +174,7 @@ dtt_init (void) const char *const header = "DTT: "; /* switch to correct I2C bus */ - I2C_SET_BUS(CFG_DTT_BUS_NUM); + I2C_SET_BUS(CONFIG_SYS_DTT_BUS_NUM); for (i = 0; i < sizeof(sensors); i++) { if (_dtt_init(sensors[i]) != 0) diff --git a/drivers/hwmon/ds1621.c b/drivers/hwmon/ds1621.c index 523f8be..d15a082 100644 --- a/drivers/hwmon/ds1621.c +++ b/drivers/hwmon/ds1621.c @@ -125,7 +125,7 @@ static int _dtt_init(int sensor) /* * Setup High Temp. */ - val = ((CFG_DTT_MAX_TEMP * 2) << 7) & 0xff80; + val = ((CONFIG_SYS_DTT_MAX_TEMP * 2) << 7) & 0xff80; if (dtt_write(sensor, DTT_TEMP_HIGH, val) != 0) return 1; udelay(50000); /* Max 50ms */ @@ -133,7 +133,7 @@ static int _dtt_init(int sensor) /* * Setup Low Temp - hysteresis. */ - val = (((CFG_DTT_MAX_TEMP - CFG_DTT_HYSTERESIS) * 2) << 7) & 0xff80; + val = (((CONFIG_SYS_DTT_MAX_TEMP - CONFIG_SYS_DTT_HYSTERESIS) * 2) << 7) & 0xff80; if (dtt_write(sensor, DTT_TEMP_LOW, val) != 0) return 1; udelay(50000); /* Max 50ms */ diff --git a/drivers/hwmon/ds1775.c b/drivers/hwmon/ds1775.c index 6a4d8e5..80fb26f 100644 --- a/drivers/hwmon/ds1775.c +++ b/drivers/hwmon/ds1775.c @@ -24,7 +24,7 @@ #include <i2c.h> #include <dtt.h> -#define DTT_I2C_DEV_CODE CFG_I2C_DTT_ADDR /* Dallas Semi's DS1775 device code */ +#define DTT_I2C_DEV_CODE CONFIG_SYS_I2C_DTT_ADDR /* Dallas Semi's DS1775 device code */ #define DTT_READ_TEMP 0x0 #define DTT_CONFIG 0x1 #define DTT_TEMP_HYST 0x2 @@ -105,7 +105,7 @@ static int _dtt_init(int sensor) /* * Setup High Temp */ - val = ((CFG_DTT_MAX_TEMP * 2) << 7) & 0xff80; + val = ((CONFIG_SYS_DTT_MAX_TEMP * 2) << 7) & 0xff80; if (dtt_write(sensor, DTT_TEMP_OS, val) != 0) return 1; udelay(50000); /* Max 50ms */ @@ -113,7 +113,7 @@ static int _dtt_init(int sensor) /* * Setup Low Temp - hysteresis */ - val = (((CFG_DTT_MAX_TEMP - CFG_DTT_HYSTERESIS) * 2) << 7) & 0xff80; + val = (((CONFIG_SYS_DTT_MAX_TEMP - CONFIG_SYS_DTT_HYSTERESIS) * 2) << 7) & 0xff80; if (dtt_write(sensor, DTT_TEMP_HYST, val) != 0) return 1; udelay(50000); /* Max 50ms */ diff --git a/drivers/hwmon/lm63.c b/drivers/hwmon/lm63.c new file mode 100644 index 0000000..03616e1 --- /dev/null +++ b/drivers/hwmon/lm63.c @@ -0,0 +1,174 @@ +/* + * (C) Copyright 2007-2008 + * Dirk Eibach, Guntermann & Drunck GmbH, eibach@gdsys.de + * based on lm75.c by Bill Hunter + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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 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, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * National LM63 Temperature Sensor + */ + +#include <common.h> +#include <i2c.h> +#include <dtt.h> + +#define DTT_I2C_DEV_CODE 0x4C /* National LM63 device */ + +#define DTT_READ_TEMP_RMT_MSB 0x01 +#define DTT_CONFIG 0x03 +#define DTT_READ_TEMP_RMT_LSB 0x10 +#define DTT_TACHLIM_LSB 0x48 +#define DTT_TACHLIM_MSB 0x49 +#define DTT_FAN_CONFIG 0x4A +#define DTT_PWM_FREQ 0x4D +#define DTT_PWM_LOOKUP_BASE 0x50 + +struct pwm_lookup_entry { + u8 temp; + u8 pwm; +}; + +/* + * Device code + */ + +int dtt_read(int sensor, int reg) +{ + int dlen; + uchar data[2]; + + /* + * Calculate sensor address and register. + */ + sensor = DTT_I2C_DEV_CODE; /* address of lm63 is not adjustable */ + + dlen = 1; + + /* + * Now try to read the register. + */ + if (i2c_read(sensor, reg, 1, data, dlen) != 0) + return -1; + + return (int)data[0]; +} /* dtt_read() */ + +int dtt_write(int sensor, int reg, int val) +{ + int dlen; + uchar data[2]; + + /* + * Calculate sensor address and register. + */ + sensor = DTT_I2C_DEV_CODE; /* address of lm63 is not adjustable */ + + 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() */ + +static int _dtt_init(int sensor) +{ + int i; + int val; + + struct pwm_lookup_entry pwm_lookup[] = CONFIG_DTT_PWM_LOOKUPTABLE; + + /* + * Set PWM Frequency to 2.5% resolution + */ + val = 20; + if (dtt_write(sensor, DTT_PWM_FREQ, val) != 0) + return 1; + + /* + * Set Tachometer Limit + */ + val = CONFIG_DTT_TACH_LIMIT; + if (dtt_write(sensor, DTT_TACHLIM_LSB, val & 0xff) != 0) + return 1; + if (dtt_write(sensor, DTT_TACHLIM_MSB, (val >> 8) & 0xff) != 0) + return 1; + + /* + * Setup PWM Lookup-Table + */ + for (i = 0; i < sizeof(pwm_lookup) / sizeof(struct pwm_lookup_entry); + i++) { + int address = DTT_PWM_LOOKUP_BASE + 2 * i; + val = pwm_lookup[i].temp; + if (dtt_write(sensor, address, val) != 0) + return 1; + val = pwm_lookup[i].pwm; + if (dtt_write(sensor, address + 1, val) != 0) + return 1; + } + + /* + * Enable PWM Lookup-Table, PWM Clock 360 kHz, Tachometer Mode 2 + */ + val = 0x02; + if (dtt_write(sensor, DTT_FAN_CONFIG, val) != 0) + return 1; + + /* + * Enable Tach input + */ + val = dtt_read(sensor, DTT_CONFIG) | 0x04; + if (dtt_write(sensor, DTT_CONFIG, val) != 0) + return 1; + + return 0; +} + +int dtt_get_temp(int sensor) +{ + s16 temp = (dtt_read(sensor, DTT_READ_TEMP_RMT_MSB) << 8) + | (dtt_read(sensor, DTT_READ_TEMP_RMT_LSB)); + + /* Ignore LSB for now, U-Boot only prints natural numbers */ + return temp >> 8; +} + +int dtt_init(void) +{ + int i; + unsigned char sensors[] = CONFIG_DTT_SENSORS; + const char *const header = "DTT: "; + + for (i = 0; i < sizeof(sensors); i++) { + if (_dtt_init(sensors[i]) != 0) + printf("%s%d FAILED INIT\n", header, i + 1); + else + printf("%s%d is %i C\n", header, i + 1, + dtt_get_temp(sensors[i])); + } + + return 0; +} diff --git a/drivers/hwmon/lm73.c b/drivers/hwmon/lm73.c index dd24683..7b5d893 100644 --- a/drivers/hwmon/lm73.c +++ b/drivers/hwmon/lm73.c @@ -124,11 +124,11 @@ static int _dtt_init(int const sensor) /* * Setup THIGH (upper-limit) and TLOW (lower-limit) registers */ - val = CFG_DTT_MAX_TEMP << 7; + val = CONFIG_SYS_DTT_MAX_TEMP << 7; if (dtt_write(sensor, DTT_TEMP_HIGH, val)) return -1; - val = CFG_DTT_MIN_TEMP << 7; + val = CONFIG_SYS_DTT_MIN_TEMP << 7; if (dtt_write(sensor, DTT_TEMP_LOW, val)) return -1; /* diff --git a/drivers/hwmon/lm75.c b/drivers/hwmon/lm75.c index 6770cdd..8119821 100644 --- a/drivers/hwmon/lm75.c +++ b/drivers/hwmon/lm75.c @@ -32,8 +32,8 @@ /* * Device code */ -#if defined(CFG_I2C_DTT_ADDR) -#define DTT_I2C_DEV_CODE CFG_I2C_DTT_ADDR +#if defined(CONFIG_SYS_I2C_DTT_ADDR) +#define DTT_I2C_DEV_CODE CONFIG_SYS_I2C_DTT_ADDR #else #define DTT_I2C_DEV_CODE 0x48 /* ON Semi's LM75 device */ #endif @@ -44,159 +44,141 @@ int dtt_read(int sensor, int reg) { - int dlen; - uchar data[2]; + 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); + /* + * 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); /* calculate address of lm75 */ - - /* - * 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]; + /* 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); /* calculate address of lm75 */ - - /* - * 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; + 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() */ static int _dtt_init(int sensor) { - int val; - - /* - * Setup TSET ( trip point ) register - */ - val = ((CFG_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 = (((CFG_DTT_MAX_TEMP - CFG_DTT_HYSTERESIS) * 2) << 7) & 0xff80; - if (dtt_write(sensor, DTT_TEMP_HYST, val) != 0) - return 1; - - /* - * Setup configuraton register - */ + 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; + /* config = alert active low and disabled */ + val = 0x60; #else - /* config = 6 sample integration, int mode, active low, and enable */ - val = 0x18; + /* config = 6 sample integration, int mode, active low, and enable */ + val = 0x18; #endif - if (dtt_write(sensor, DTT_CONFIG, val) != 0) - return 1; + if (dtt_write(sensor, DTT_CONFIG, val) != 0) + return 1; - return 0; + return 0; } /* _dtt_init() */ int dtt_init (void) { - int i; - unsigned char sensors[] = CONFIG_DTT_SENSORS; - const char *const header = "DTT: "; + int i; + unsigned char sensors[] = CONFIG_DTT_SENSORS; + const char *const header = "DTT: "; + int old_bus; + + /* switch to correct I2C bus */ + old_bus = I2C_GET_BUS(); + I2C_SET_BUS(CONFIG_SYS_DTT_BUS_NUM); - for (i = 0; i < sizeof(sensors); i++) { + for (i = 0; i < sizeof(sensors); i++) { if (_dtt_init(sensors[i]) != 0) - printf("%s%d FAILED INIT\n", header, i+1); + printf("%s%d FAILED INIT\n", header, i+1); else - printf("%s%d is %i C\n", header, i+1, - dtt_get_temp(sensors[i])); - } + printf("%s%d is %i C\n", header, i+1, + dtt_get_temp(sensors[i])); + } + /* switch back to original I2C bus */ + I2C_SET_BUS(old_bus); - return (0); + return (0); } /* dtt_init() */ int dtt_get_temp(int sensor) { - int const ret = dtt_read(sensor, DTT_READ_TEMP); + 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); + if (ret < 0) { + printf("DTT temperature read failed.\n"); + return 0; + } + return (int)((int16_t) ret / 256); } /* dtt_get_temp() */ |