diff options
Diffstat (limited to 'drivers/hwmon/it87.c')
| -rw-r--r-- | drivers/hwmon/it87.c | 987 |
1 files changed, 720 insertions, 267 deletions
diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c index 0ffe84d190bb..25763d2223b6 100644 --- a/drivers/hwmon/it87.c +++ b/drivers/hwmon/it87.c @@ -1,40 +1,40 @@ /* - it87.c - Part of lm_sensors, Linux kernel modules for hardware - monitoring. - - The IT8705F is an LPC-based Super I/O part that contains UARTs, a - parallel port, an IR port, a MIDI port, a floppy controller, etc., in - addition to an Environment Controller (Enhanced Hardware Monitor and - Fan Controller) - - This driver supports only the Environment Controller in the IT8705F and - similar parts. The other devices are supported by different drivers. - - Supports: IT8705F Super I/O chip w/LPC interface - IT8712F Super I/O chip w/LPC interface - IT8716F Super I/O chip w/LPC interface - IT8718F Super I/O chip w/LPC interface - IT8720F Super I/O chip w/LPC interface - IT8726F Super I/O chip w/LPC interface - Sis950 A clone of the IT8705F - - Copyright (C) 2001 Chris Gauthron - Copyright (C) 2005-2007 Jean Delvare <khali@linux-fr.org> - - 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., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ + * it87.c - Part of lm_sensors, Linux kernel modules for hardware + * monitoring. + * + * The IT8705F is an LPC-based Super I/O part that contains UARTs, a + * parallel port, an IR port, a MIDI port, a floppy controller, etc., in + * addition to an Environment Controller (Enhanced Hardware Monitor and + * Fan Controller) + * + * This driver supports only the Environment Controller in the IT8705F and + * similar parts. The other devices are supported by different drivers. + * + * Supports: IT8705F Super I/O chip w/LPC interface + * IT8712F Super I/O chip w/LPC interface + * IT8716F Super I/O chip w/LPC interface + * IT8718F Super I/O chip w/LPC interface + * IT8720F Super I/O chip w/LPC interface + * IT8726F Super I/O chip w/LPC interface + * Sis950 A clone of the IT8705F + * + * Copyright (C) 2001 Chris Gauthron + * Copyright (C) 2005-2010 Jean Delvare <khali@linux-fr.org> + * + * 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., 675 Mass Ave, Cambridge, MA 02139, USA. + */ #include <linux/module.h> #include <linux/init.h> @@ -80,6 +80,13 @@ superio_inb(int reg) return inb(VAL); } +static inline void +superio_outb(int reg, int val) +{ + outb(reg, REG); + outb(val, VAL); +} + static int superio_inw(int reg) { int val; @@ -128,6 +135,7 @@ superio_exit(void) #define IT87_SIO_GPIO5_REG 0x29 #define IT87_SIO_PINX2_REG 0x2c /* Pin selection */ #define IT87_SIO_VID_REG 0xfc /* VID value */ +#define IT87_SIO_BEEP_PIN_REG 0xf6 /* Beep pin mapping */ /* Update battery voltage after every reading if true */ static int update_vbat; @@ -187,9 +195,13 @@ static const u8 IT87_REG_FANX_MIN[] = { 0x1b, 0x1c, 0x1d, 0x85, 0x87 }; #define IT87_REG_VIN_ENABLE 0x50 #define IT87_REG_TEMP_ENABLE 0x51 +#define IT87_REG_BEEP_ENABLE 0x5c #define IT87_REG_CHIPID 0x58 +#define IT87_REG_AUTO_TEMP(nr, i) (0x60 + (nr) * 8 + (i)) +#define IT87_REG_AUTO_PWM(nr, i) (0x65 + (nr) * 8 + (i)) + #define IN_TO_REG(val) (SENSORS_LIMIT((((val) + 8)/16),0,255)) #define IN_FROM_REG(val) ((val) * 16) @@ -246,6 +258,7 @@ struct it87_sio_data { /* Values read from Super-I/O config space */ u8 revision; u8 vid_value; + u8 beep_pin; /* Features skipped based on config or DMI */ u8 skip_vid; u8 skip_fan; @@ -279,9 +292,21 @@ struct it87_data { u8 vid; /* Register encoding, combined */ u8 vrm; u32 alarms; /* Register encoding, combined */ + u8 beeps; /* Register encoding */ u8 fan_main_ctrl; /* Register value */ u8 fan_ctl; /* Register value */ - u8 manual_pwm_ctl[3]; /* manual PWM value set by user */ + + /* The following 3 arrays correspond to the same registers. The + * meaning of bits 6-0 depends on the value of bit 7, and we want + * to preserve settings on mode changes, so we have to track all + * values separately. */ + u8 pwm_ctrl[3]; /* Register value */ + u8 pwm_duty[3]; /* Manual PWM value set by user (bit 6-0) */ + u8 pwm_temp_map[3]; /* PWM to temp. chan. mapping (bits 1-0) */ + + /* Automatic fan speed control registers */ + u8 auto_pwm[3][4]; /* [nr][3] is hard-coded */ + s8 auto_temp[3][5]; /* [nr][0] is point1_temp_hyst */ }; static inline int has_16bit_fans(const struct it87_data *data) @@ -296,6 +321,15 @@ static inline int has_16bit_fans(const struct it87_data *data) || data->type == it8720; } +static inline int has_old_autopwm(const struct it87_data *data) +{ + /* The old automatic fan speed control interface is implemented + by IT8705F chips up to revision F and IT8712F chips up to + revision G. */ + return (data->type == it87 && data->revision < 0x03) + || (data->type == it8712 && data->revision < 0x08); +} + static int it87_probe(struct platform_device *pdev); static int __devexit it87_remove(struct platform_device *pdev); @@ -352,7 +386,10 @@ static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, int nr = sensor_attr->index; struct it87_data *data = dev_get_drvdata(dev); - unsigned long val = simple_strtoul(buf, NULL, 10); + unsigned long val; + + if (strict_strtoul(buf, 10, &val) < 0) + return -EINVAL; mutex_lock(&data->update_lock); data->in_min[nr] = IN_TO_REG(val); @@ -368,7 +405,10 @@ static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, int nr = sensor_attr->index; struct it87_data *data = dev_get_drvdata(dev); - unsigned long val = simple_strtoul(buf, NULL, 10); + unsigned long val; + + if (strict_strtoul(buf, 10, &val) < 0) + return -EINVAL; mutex_lock(&data->update_lock); data->in_max[nr] = IN_TO_REG(val); @@ -441,7 +481,10 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, int nr = sensor_attr->index; struct it87_data *data = dev_get_drvdata(dev); - int val = simple_strtol(buf, NULL, 10); + long val; + + if (strict_strtol(buf, 10, &val) < 0) + return -EINVAL; mutex_lock(&data->update_lock); data->temp_high[nr] = TEMP_TO_REG(val); @@ -456,7 +499,10 @@ static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, int nr = sensor_attr->index; struct it87_data *data = dev_get_drvdata(dev); - int val = simple_strtol(buf, NULL, 10); + long val; + + if (strict_strtol(buf, 10, &val) < 0) + return -EINVAL; mutex_lock(&data->update_lock); data->temp_low[nr] = TEMP_TO_REG(val); @@ -483,8 +529,9 @@ static ssize_t show_sensor(struct device *dev, struct device_attribute *attr, int nr = sensor_attr->index; struct it87_data *data = it87_update_device(dev); - u8 reg = data->sensor; /* In case the value is updated while we use it */ - + u8 reg = data->sensor; /* In case the value is updated while + we use it */ + if (reg & (1 << nr)) return sprintf(buf, "3\n"); /* thermal diode */ if (reg & (8 << nr)) @@ -498,12 +545,15 @@ static ssize_t set_sensor(struct device *dev, struct device_attribute *attr, int nr = sensor_attr->index; struct it87_data *data = dev_get_drvdata(dev); - int val = simple_strtol(buf, NULL, 10); + long val; + u8 reg; - mutex_lock(&data->update_lock); + if (strict_strtol(buf, 10, &val) < 0) + return -EINVAL; - data->sensor &= ~(1 << nr); - data->sensor &= ~(8 << nr); + reg = it87_read_value(data, IT87_REG_TEMP_ENABLE); + reg &= ~(1 << nr); + reg &= ~(8 << nr); if (val == 2) { /* backwards compatibility */ dev_warn(dev, "Sensor type 2 is deprecated, please use 4 " "instead\n"); @@ -511,14 +561,16 @@ static ssize_t set_sensor(struct device *dev, struct device_attribute *attr, } /* 3 = thermal diode; 4 = thermistor; 0 = disabled */ if (val == 3) - data->sensor |= 1 << nr; + reg |= 1 << nr; else if (val == 4) - data->sensor |= 8 << nr; - else if (val != 0) { - mutex_unlock(&data->update_lock); + reg |= 8 << nr; + else if (val != 0) return -EINVAL; - } + + mutex_lock(&data->update_lock); + data->sensor = reg; it87_write_value(data, IT87_REG_TEMP_ENABLE, data->sensor); + data->valid = 0; /* Force cache refresh */ mutex_unlock(&data->update_lock); return count; } @@ -531,6 +583,19 @@ show_sensor_offset(2); show_sensor_offset(3); /* 3 Fans */ + +static int pwm_mode(const struct it87_data *data, int nr) +{ + int ctrl = data->fan_main_ctrl & (1 << nr); + + if (ctrl == 0) /* Full speed */ + return 0; + if (data->pwm_ctrl[nr] & 0x80) /* Automatic mode */ + return 2; + else /* Manual mode */ + return 1; +} + static ssize_t show_fan(struct device *dev, struct device_attribute *attr, char *buf) { @@ -538,7 +603,7 @@ static ssize_t show_fan(struct device *dev, struct device_attribute *attr, int nr = sensor_attr->index; struct it87_data *data = it87_update_device(dev); - return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan[nr], + return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr], DIV_FROM_REG(data->fan_div[nr]))); } static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr, @@ -548,8 +613,8 @@ static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr, int nr = sensor_attr->index; struct it87_data *data = it87_update_device(dev); - return sprintf(buf,"%d\n", - FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr]))); + return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr], + DIV_FROM_REG(data->fan_div[nr]))); } static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr, char *buf) @@ -560,14 +625,14 @@ static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr, struct it87_data *data = it87_update_device(dev); return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr])); } -static ssize_t show_pwm_enable(struct device *dev, struct device_attribute *attr, - char *buf) +static ssize_t show_pwm_enable(struct device *dev, + struct device_attribute *attr, char *buf) { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; struct it87_data *data = it87_update_device(dev); - return sprintf(buf,"%d\n", (data->fan_main_ctrl & (1 << nr)) ? 1 : 0); + return sprintf(buf, "%d\n", pwm_mode(data, nr)); } static ssize_t show_pwm(struct device *dev, struct device_attribute *attr, char *buf) @@ -576,7 +641,7 @@ static ssize_t show_pwm(struct device *dev, struct device_attribute *attr, int nr = sensor_attr->index; struct it87_data *data = it87_update_device(dev); - return sprintf(buf,"%d\n", data->manual_pwm_ctl[nr]); + return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm_duty[nr])); } static ssize_t show_pwm_freq(struct device *dev, struct device_attribute *attr, char *buf) @@ -593,15 +658,24 @@ static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, int nr = sensor_attr->index; struct it87_data *data = dev_get_drvdata(dev); - int val = simple_strtol(buf, NULL, 10); + long val; u8 reg; + if (strict_strtol(buf, 10, &val) < 0) + return -EINVAL; + mutex_lock(&data->update_lock); reg = it87_read_value(data, IT87_REG_FAN_DIV); switch (nr) { - case 0: data->fan_div[nr] = reg & 0x07; break; - case 1: data->fan_div[nr] = (reg >> 3) & 0x07; break; - case 2: data->fan_div[nr] = (reg & 0x40) ? 3 : 1; break; + case 0: + data->fan_div[nr] = reg & 0x07; + break; + case 1: + data->fan_div[nr] = (reg >> 3) & 0x07; + break; + case 2: + data->fan_div[nr] = (reg & 0x40) ? 3 : 1; + break; } data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); @@ -616,10 +690,13 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, int nr = sensor_attr->index; struct it87_data *data = dev_get_drvdata(dev); - unsigned long val = simple_strtoul(buf, NULL, 10); + unsigned long val; int min; u8 old; + if (strict_strtoul(buf, 10, &val) < 0) + return -EINVAL; + mutex_lock(&data->update_lock); old = it87_read_value(data, IT87_REG_FAN_DIV); @@ -651,6 +728,32 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, mutex_unlock(&data->update_lock); return count; } + +/* Returns 0 if OK, -EINVAL otherwise */ +static int check_trip_points(struct device *dev, int nr) +{ + const struct it87_data *data = dev_get_drvdata(dev); + int i, err = 0; + + if (has_old_autopwm(data)) { + for (i = 0; i < 3; i++) { + if (data->auto_temp[nr][i] > data->auto_temp[nr][i + 1]) + err = -EINVAL; + } + for (i = 0; i < 2; i++) { + if (data->auto_pwm[nr][i] > data->auto_pwm[nr][i + 1]) + err = -EINVAL; + } + } + + if (err) { + dev_err(dev, "Inconsistent trip points, not switching to " + "automatic mode\n"); + dev_err(dev, "Adjust the trip points and try again\n"); + } + return err; +} + static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { @@ -658,7 +761,16 @@ static ssize_t set_pwm_enable(struct device *dev, int nr = sensor_attr->index; struct it87_data *data = dev_get_drvdata(dev); - int val = simple_strtol(buf, NULL, 10); + long val; + + if (strict_strtol(buf, 10, &val) < 0 || val < 0 || val > 2) + return -EINVAL; + + /* Check trip points before switching to automatic mode */ + if (val == 2) { + if (check_trip_points(dev, nr) < 0) + return -EINVAL; + } mutex_lock(&data->update_lock); @@ -669,16 +781,18 @@ static ssize_t set_pwm_enable(struct device *dev, it87_write_value(data, IT87_REG_FAN_CTL, tmp | (1 << nr)); /* set on/off mode */ data->fan_main_ctrl &= ~(1 << nr); - it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, data->fan_main_ctrl); - } else if (val == 1) { + it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, + data->fan_main_ctrl); + } else { + if (val == 1) /* Manual mode */ + data->pwm_ctrl[nr] = data->pwm_duty[nr]; + else /* Automatic mode */ + data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr]; + it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]); /* set SmartGuardian mode */ data->fan_main_ctrl |= (1 << nr); - it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, data->fan_main_ctrl); - /* set saved pwm value, clear FAN_CTLX PWM mode bit */ - it87_write_value(data, IT87_REG_PWM(nr), PWM_TO_REG(data->manual_pwm_ctl[nr])); - } else { - mutex_unlock(&data->update_lock); - return -EINVAL; + it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, + data->fan_main_ctrl); } mutex_unlock(&data->update_lock); @@ -691,15 +805,19 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, int nr = sensor_attr->index; struct it87_data *data = dev_get_drvdata(dev); - int val = simple_strtol(buf, NULL, 10); + long val; - if (val < 0 || val > 255) + if (strict_strtol(buf, 10, &val) < 0 || val < 0 || val > 255) return -EINVAL; mutex_lock(&data->update_lock); - data->manual_pwm_ctl[nr] = val; - if (data->fan_main_ctrl & (1 << nr)) - it87_write_value(data, IT87_REG_PWM(nr), PWM_TO_REG(data->manual_pwm_ctl[nr])); + data->pwm_duty[nr] = PWM_TO_REG(val); + /* If we are in manual mode, write the duty cycle immediately; + * otherwise, just store it for later use. */ + if (!(data->pwm_ctrl[nr] & 0x80)) { + data->pwm_ctrl[nr] = data->pwm_duty[nr]; + it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]); + } mutex_unlock(&data->update_lock); return count; } @@ -707,9 +825,12 @@ static ssize_t set_pwm_freq(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct it87_data *data = dev_get_drvdata(dev); - unsigned long val = simple_strtoul(buf, NULL, 10); + unsigned long val; int i; + if (strict_strtoul(buf, 10, &val) < 0) + return -EINVAL; + /* Search for the nearest available frequency */ for (i = 0; i < 7; i++) { if (val > (pwm_freq[i] + pwm_freq[i+1]) / 2) @@ -724,6 +845,132 @@ static ssize_t set_pwm_freq(struct device *dev, return count; } +static ssize_t show_pwm_temp_map(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); + int nr = sensor_attr->index; + + struct it87_data *data = it87_update_device(dev); + int map; + + if (data->pwm_temp_map[nr] < 3) + map = 1 << data->pwm_temp_map[nr]; + else + map = 0; /* Should never happen */ + return sprintf(buf, "%d\n", map); +} +static ssize_t set_pwm_temp_map(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); + int nr = sensor_attr->index; + + struct it87_data *data = dev_get_drvdata(dev); + long val; + u8 reg; + + /* This check can go away if we ever support automatic fan speed + control on newer chips. */ + if (!has_old_autopwm(data)) { + dev_notice(dev, "Mapping change disabled for safety reasons\n"); + return -EINVAL; + } + + if (strict_strtol(buf, 10, &val) < 0) + return -EINVAL; + + switch (val) { + case (1 << 0): + reg = 0x00; + break; + case (1 << 1): + reg = 0x01; + break; + case (1 << 2): + reg = 0x02; + break; + default: + return -EINVAL; + } + + mutex_lock(&data->update_lock); + data->pwm_temp_map[nr] = reg; + /* If we are in automatic mode, write the temp mapping immediately; + * otherwise, just store it for later use. */ + if (data->pwm_ctrl[nr] & 0x80) { + data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr]; + it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]); + } + mutex_unlock(&data->update_lock); + return count; +} + +static ssize_t show_auto_pwm(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct it87_data *data = it87_update_device(dev); + struct sensor_device_attribute_2 *sensor_attr = + to_sensor_dev_attr_2(attr); + int nr = sensor_attr->nr; + int point = sensor_attr->index; + + return sprintf(buf, "%d\n", PWM_FROM_REG(data->auto_pwm[nr][point])); +} + +static ssize_t set_auto_pwm(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct it87_data *data = dev_get_drvdata(dev); + struct sensor_device_attribute_2 *sensor_attr = + to_sensor_dev_attr_2(attr); + int nr = sensor_attr->nr; + int point = sensor_attr->index; + long val; + + if (strict_strtol(buf, 10, &val) < 0 || val < 0 || val > 255) + return -EINVAL; + + mutex_lock(&data->update_lock); + data->auto_pwm[nr][point] = PWM_TO_REG(val); + it87_write_value(data, IT87_REG_AUTO_PWM(nr, point), + data->auto_pwm[nr][point]); + mutex_unlock(&data->update_lock); + return count; +} + +static ssize_t show_auto_temp(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct it87_data *data = it87_update_device(dev); + struct sensor_device_attribute_2 *sensor_attr = + to_sensor_dev_attr_2(attr); + int nr = sensor_attr->nr; + int point = sensor_attr->index; + + return sprintf(buf, "%d\n", TEMP_FROM_REG(data->auto_temp[nr][point])); +} + +static ssize_t set_auto_temp(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct it87_data *data = dev_get_drvdata(dev); + struct sensor_device_attribute_2 *sensor_attr = + to_sensor_dev_attr_2(attr); + int nr = sensor_attr->nr; + int point = sensor_attr->index; + long val; + + if (strict_strtol(buf, 10, &val) < 0 || val < -128000 || val > 127000) + return -EINVAL; + + mutex_lock(&data->update_lock); + data->auto_temp[nr][point] = TEMP_TO_REG(val); + it87_write_value(data, IT87_REG_AUTO_TEMP(nr, point), + data->auto_temp[nr][point]); + mutex_unlock(&data->update_lock); + return count; +} #define show_fan_offset(offset) \ static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ @@ -744,7 +991,36 @@ static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \ show_pwm, set_pwm, offset - 1); \ static DEVICE_ATTR(pwm##offset##_freq, \ (offset == 1 ? S_IRUGO | S_IWUSR : S_IRUGO), \ - show_pwm_freq, (offset == 1 ? set_pwm_freq : NULL)); + show_pwm_freq, (offset == 1 ? set_pwm_freq : NULL)); \ +static SENSOR_DEVICE_ATTR(pwm##offset##_auto_channels_temp, \ + S_IRUGO | S_IWUSR, show_pwm_temp_map, set_pwm_temp_map, \ + offset - 1); \ +static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point1_pwm, \ + S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, \ + offset - 1, 0); \ +static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point2_pwm, \ + S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, \ + offset - 1, 1); \ +static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point3_pwm, \ + S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, \ + offset - 1, 2); \ +static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point4_pwm, \ + S_IRUGO, show_auto_pwm, NULL, offset - 1, 3); \ +static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point1_temp, \ + S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \ + offset - 1, 1); \ +static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point1_temp_hyst, \ + S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \ + offset - 1, 0); \ +static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point2_temp, \ + S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \ + offset - 1, 2); \ +static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point3_temp, \ + S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \ + offset - 1, 3); \ +static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point4_temp, \ + S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \ + offset - 1, 4); show_pwm_offset(1); show_pwm_offset(2); @@ -775,7 +1051,10 @@ static ssize_t set_fan16_min(struct device *dev, struct device_attribute *attr, struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; struct it87_data *data = dev_get_drvdata(dev); - int val = simple_strtol(buf, NULL, 10); + long val; + + if (strict_strtol(buf, 10, &val) < 0) + return -EINVAL; mutex_lock(&data->update_lock); data->fan_min[nr] = FAN16_TO_REG(val); @@ -805,7 +1084,8 @@ show_fan16_offset(4); show_fan16_offset(5); /* Alarms */ -static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, + char *buf) { struct it87_data *data = it87_update_device(dev); return sprintf(buf, "%u\n", data->alarms); @@ -836,27 +1116,78 @@ static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 16); static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 17); static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 18); -static ssize_t -show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t show_beep(struct device *dev, struct device_attribute *attr, + char *buf) +{ + int bitnr = to_sensor_dev_attr(attr)->index; + struct it87_data *data = it87_update_device(dev); + return sprintf(buf, "%u\n", (data->beeps >> bitnr) & 1); +} +static ssize_t set_beep(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + int bitnr = to_sensor_dev_attr(attr)->index; + struct it87_data *data = dev_get_drvdata(dev); + long val; + + if (strict_strtol(buf, 10, &val) < 0 + || (val != 0 && val != 1)) + return -EINVAL; + + mutex_lock(&data->update_lock); + data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE); + if (val) + data->beeps |= (1 << bitnr); + else + data->beeps &= ~(1 << bitnr); + it87_write_value(data, IT87_REG_BEEP_ENABLE, data->beeps); + mutex_unlock(&data->update_lock); + return count; +} + +static SENSOR_DEVICE_ATTR(in0_beep, S_IRUGO | S_IWUSR, + show_beep, set_beep, 1); +static SENSOR_DEVICE_ATTR(in1_beep, S_IRUGO, show_beep, NULL, 1); +static SENSOR_DEVICE_ATTR(in2_beep, S_IRUGO, show_beep, NULL, 1); +static SENSOR_DEVICE_ATTR(in3_beep, S_IRUGO, show_beep, NULL, 1); +static SENSOR_DEVICE_ATTR(in4_beep, S_IRUGO, show_beep, NULL, 1); +static SENSOR_DEVICE_ATTR(in5_beep, S_IRUGO, show_beep, NULL, 1); +static SENSOR_DEVICE_ATTR(in6_beep, S_IRUGO, show_beep, NULL, 1); +static SENSOR_DEVICE_ATTR(in7_beep, S_IRUGO, show_beep, NULL, 1); +/* fanX_beep writability is set later */ +static SENSOR_DEVICE_ATTR(fan1_beep, S_IRUGO, show_beep, set_beep, 0); +static SENSOR_DEVICE_ATTR(fan2_beep, S_IRUGO, show_beep, set_beep, 0); +static SENSOR_DEVICE_ATTR(fan3_beep, S_IRUGO, show_beep, set_beep, 0); +static SENSOR_DEVICE_ATTR(fan4_beep, S_IRUGO, show_beep, set_beep, 0); +static SENSOR_DEVICE_ATTR(fan5_beep, S_IRUGO, show_beep, set_beep, 0); +static SENSOR_DEVICE_ATTR(temp1_beep, S_IRUGO | S_IWUSR, + show_beep, set_beep, 2); +static SENSOR_DEVICE_ATTR(temp2_beep, S_IRUGO, show_beep, NULL, 2); +static SENSOR_DEVICE_ATTR(temp3_beep, S_IRUGO, show_beep, NULL, 2); + +static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, + char *buf) { struct it87_data *data = dev_get_drvdata(dev); return sprintf(buf, "%u\n", data->vrm); } -static ssize_t -store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { struct it87_data *data = dev_get_drvdata(dev); - u32 val; + unsigned long val; + + if (strict_strtoul(buf, 10, &val) < 0) + return -EINVAL; - val = simple_strtoul(buf, NULL, 10); data->vrm = val; return count; } static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg); -static ssize_t -show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, + char *buf) { struct it87_data *data = it87_update_device(dev); return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm)); @@ -931,51 +1262,176 @@ static const struct attribute_group it87_group = { .attrs = it87_attributes, }; -static struct attribute *it87_attributes_opt[] = { +static struct attribute *it87_attributes_beep[] = { + &sensor_dev_attr_in0_beep.dev_attr.attr, + &sensor_dev_attr_in1_beep.dev_attr.attr, + &sensor_dev_attr_in2_beep.dev_attr.attr, + &sensor_dev_attr_in3_beep.dev_attr.attr, + &sensor_dev_attr_in4_beep.dev_attr.attr, + &sensor_dev_attr_in5_beep.dev_attr.attr, + &sensor_dev_attr_in6_beep.dev_attr.attr, + &sensor_dev_attr_in7_beep.dev_attr.attr, + + &sensor_dev_attr_temp1_beep.dev_attr.attr, + &sensor_dev_attr_temp2_beep.dev_attr.attr, + &sensor_dev_attr_temp3_beep.dev_attr.attr, + NULL +}; + +static const struct attribute_group it87_group_beep = { + .attrs = it87_attributes_beep, +}; + +static struct attribute *it87_attributes_fan16[5][3+1] = { { &sensor_dev_attr_fan1_input16.dev_attr.attr, &sensor_dev_attr_fan1_min16.dev_attr.attr, + &sensor_dev_attr_fan1_alarm.dev_attr.attr, + NULL +}, { &sensor_dev_attr_fan2_input16.dev_attr.attr, &sensor_dev_attr_fan2_min16.dev_attr.attr, + &sensor_dev_attr_fan2_alarm.dev_attr.attr, + NULL +}, { &sensor_dev_attr_fan3_input16.dev_attr.attr, &sensor_dev_attr_fan3_min16.dev_attr.attr, + &sensor_dev_attr_fan3_alarm.dev_attr.attr, + NULL +}, { &sensor_dev_attr_fan4_input16.dev_attr.attr, &sensor_dev_attr_fan4_min16.dev_attr.attr, + &sensor_dev_attr_fan4_alarm.dev_attr.attr, + NULL +}, { &sensor_dev_attr_fan5_input16.dev_attr.attr, &sensor_dev_attr_fan5_min16.dev_attr.attr, + &sensor_dev_attr_fan5_alarm.dev_attr.attr, + NULL +} }; + +static const struct attribute_group it87_group_fan16[5] = { + { .attrs = it87_attributes_fan16[0] }, + { .attrs = it87_attributes_fan16[1] }, + { .attrs = it87_attributes_fan16[2] }, + { .attrs = it87_attributes_fan16[3] }, + { .attrs = it87_attributes_fan16[4] }, +}; +static struct attribute *it87_attributes_fan[3][4+1] = { { &sensor_dev_attr_fan1_input.dev_attr.attr, &sensor_dev_attr_fan1_min.dev_attr.attr, &sensor_dev_attr_fan1_div.dev_attr.attr, + &sensor_dev_attr_fan1_alarm.dev_attr.attr, + NULL +}, { &sensor_dev_attr_fan2_input.dev_attr.attr, &sensor_dev_attr_fan2_min.dev_attr.attr, &sensor_dev_attr_fan2_div.dev_attr.attr, + &sensor_dev_attr_fan2_alarm.dev_attr.attr, + NULL +}, { &sensor_dev_attr_fan3_input.dev_attr.attr, &sensor_dev_attr_fan3_min.dev_attr.attr, &sensor_dev_attr_fan3_div.dev_attr.attr, - - &sensor_dev_attr_fan1_alarm.dev_attr.attr, - &sensor_dev_attr_fan2_alarm.dev_attr.attr, &sensor_dev_attr_fan3_alarm.dev_attr.attr, - &sensor_dev_attr_fan4_alarm.dev_attr.attr, - &sensor_dev_attr_fan5_alarm.dev_attr.attr, + NULL +} }; + +static const struct attribute_group it87_group_fan[3] = { + { .attrs = it87_attributes_fan[0] }, + { .attrs = it87_attributes_fan[1] }, + { .attrs = it87_attributes_fan[2] }, +}; +static const struct attribute_group * +it87_get_fan_group(const struct it87_data *data) +{ + return has_16bit_fans(data) ? it87_group_fan16 : it87_group_fan; +} + +static struct attribute *it87_attributes_pwm[3][4+1] = { { &sensor_dev_attr_pwm1_enable.dev_attr.attr, - &sensor_dev_attr_pwm2_enable.dev_attr.attr, - &sensor_dev_attr_pwm3_enable.dev_attr.attr, &sensor_dev_attr_pwm1.dev_attr.attr, - &sensor_dev_attr_pwm2.dev_attr.attr, - &sensor_dev_attr_pwm3.dev_attr.attr, &dev_attr_pwm1_freq.attr, + &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr, + NULL +}, { + &sensor_dev_attr_pwm2_enable.dev_attr.attr, + &sensor_dev_attr_pwm2.dev_attr.attr, &dev_attr_pwm2_freq.attr, + &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr, + NULL +}, { + &sensor_dev_attr_pwm3_enable.dev_attr.attr, + &sensor_dev_attr_pwm3.dev_attr.attr, &dev_attr_pwm3_freq.attr, + &sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr, + NULL +} }; + +static const struct attribute_group it87_group_pwm[3] = { + { .attrs = it87_attributes_pwm[0] }, + { .attrs = it87_attributes_pwm[1] }, + { .attrs = it87_attributes_pwm[2] }, +}; +static struct attribute *it87_attributes_autopwm[3][9+1] = { { + &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point4_pwm.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point1_temp_hyst.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr, + NULL +}, { + &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr, + &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr, + &sensor_dev_attr_pwm2_auto_point3_pwm.dev_attr.attr, + &sensor_dev_attr_pwm2_auto_point4_pwm.dev_attr.attr, + &sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr, + &sensor_dev_attr_pwm2_auto_point1_temp_hyst.dev_attr.attr, + &sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr, + &sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr, + &sensor_dev_attr_pwm2_auto_point4_temp.dev_attr.attr, + NULL +}, { + &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr, + &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr, + &sensor_dev_attr_pwm3_auto_point3_pwm.dev_attr.attr, + &sensor_dev_attr_pwm3_auto_point4_pwm.dev_attr.attr, + &sensor_dev_attr_pwm3_auto_point1_temp.dev_attr.attr, + &sensor_dev_attr_pwm3_auto_point1_temp_hyst.dev_attr.attr, + &sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr, + &sensor_dev_attr_pwm3_auto_point3_temp.dev_attr.attr, + &sensor_dev_attr_pwm3_auto_point4_temp.dev_attr.attr, + NULL +} }; + +static const struct attribute_group it87_group_autopwm[3] = { + { .attrs = it87_attributes_autopwm[0] }, + { .attrs = it87_attributes_autopwm[1] }, + { .attrs = it87_attributes_autopwm[2] }, +}; + +static struct attribute *it87_attributes_fan_beep[] = { + &sensor_dev_attr_fan1_beep.dev_attr.attr, + &sensor_dev_attr_fan2_beep.dev_attr.attr, + &sensor_dev_attr_fan3_beep.dev_attr.attr, + &sensor_dev_attr_fan4_beep.dev_attr.attr, + &sensor_dev_attr_fan5_beep.dev_attr.attr, +}; + +static struct attribute *it87_attributes_vid[] = { &dev_attr_vrm.attr, &dev_attr_cpu0_vid.attr, NULL }; -static const struct attribute_group it87_group_opt = { - .attrs = it87_attributes_opt, +static const struct attribute_group it87_group_vid = { + .attrs = it87_attributes_vid, }; /* SuperIO detection - will change isa_address if a chip is found */ @@ -1035,6 +1491,10 @@ static int __init it87_find(unsigned short *address, if (sio_data->type == it87) { /* The IT8705F doesn't have VID pins at all */ sio_data->skip_vid = 1; + + /* The IT8705F has a different LD number for GPIO */ + superio_select(5); + sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f; } else { int reg; @@ -1064,11 +1524,30 @@ static int __init it87_find(unsigned short *address, sio_data->vid_value = superio_inb(IT87_SIO_VID_REG); reg = superio_inb(IT87_SIO_PINX2_REG); + /* + * The IT8720F has no VIN7 pin, so VCCH should always be + * routed internally to VIN7 with an internal divider. + * Curiously, there still is a configuration bit to control + * this, which means it can be set incorrectly. And even + * more curiously, many boards out there are improperly + * configured, even though the IT8720F datasheet claims + * that the internal routing of VCCH to VIN7 is the default + * setting. So we force the internal routing in this case. + */ + if (sio_data->type == it8720 && !(reg & (1 << 1))) { + reg |= (1 << 1); + superio_outb(IT87_SIO_PINX2_REG, reg); + pr_notice("it87: Routing internal VCCH to in7\n"); + } if (reg & (1 << 0)) pr_info("it87: in3 is VCC (+5V)\n"); if (reg & (1 << 1)) pr_info("it87: in7 is VCCH (+5V Stand-By)\n"); + + sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f; } + if (sio_data->beep_pin) + pr_info("it87: Beeping is supported\n"); /* Disable specific features based on DMI strings */ board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR); @@ -1093,14 +1572,46 @@ exit: return err; } +static void it87_remove_files(struct device *dev) +{ + struct it87_data *data = platform_get_drvdata(pdev); + struct it87_sio_data *sio_data = dev->platform_data; + const struct attribute_group *fan_group = it87_get_fan_group(data); + int i; + + sysfs_remove_group(&dev->kobj, &it87_group); + if (sio_data->beep_pin) + sysfs_remove_group(&dev->kobj, &it87_group_beep); + for (i = 0; i < 5; i++) { + if (!(data->has_fan & (1 << i))) + continue; + sysfs_remove_group(&dev->kobj, &fan_group[i]); + if (sio_data->beep_pin) + sysfs_remove_file(&dev->kobj, + it87_attributes_fan_beep[i]); + } + for (i = 0; i < 3; i++) { + if (sio_data->skip_pwm & (1 << 0)) + continue; + sysfs_remove_group(&dev->kobj, &it87_group_pwm[i]); + if (has_old_autopwm(data)) + sysfs_remove_group(&dev->kobj, + &it87_group_autopwm[i]); + } + if (!sio_data->skip_vid) + sysfs_remove_group(&dev->kobj, &it87_group_vid); +} + static int __devinit it87_probe(struct platform_device *pdev) { struct it87_data *data; struct resource *res; struct device *dev = &pdev->dev; struct it87_sio_data *sio_data = dev->platform_data; - int err = 0; + const struct attribute_group *fan_group; + int err = 0, i; int enable_pwm_interface; + int fan_beep_need_rw; static const char *names[] = { "it87", "it8712", @@ -1118,7 +1629,8 @@ static int __devinit it87_probe(struct platform_device *pdev) goto ERROR0; } - if (!(data = kzalloc(sizeof(struct it87_data), GFP_KERNEL))) { + data = kzalloc(sizeof(struct it87_data), GFP_KERNEL); + if (!data) { err = -ENOMEM; goto ERROR1; } @@ -1146,120 +1658,60 @@ static int __devinit it87_probe(struct platform_device *pdev) it87_init_device(pdev); /* Register sysfs hooks */ - if ((err = sysfs_create_group(&dev->kobj, &it87_group))) + err = sysfs_create_group(&dev->kobj, &it87_group); + if (err) goto ERROR2; + if (sio_data->beep_pin) { + err = sysfs_create_group(&dev->kobj, &it87_group_beep); + if (err) + goto ERROR4; + } + /* Do not create fan files for disabled fans */ - if (has_16bit_fans(data)) { - /* 16-bit tachometers */ - if (data->has_fan & (1 << 0)) { - if ((err = device_create_file(dev, - &sensor_dev_attr_fan1_input16.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_fan1_min16.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_fan1_alarm.dev_attr))) - goto ERROR4; - } - if (data->has_fan & (1 << 1)) { - if ((err = device_create_file(dev, - &sensor_dev_attr_fan2_input16.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_fan2_min16.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_fan2_alarm.dev_attr))) - goto ERROR4; - } - if (data->has_fan & (1 << 2)) { - if ((err = device_create_file(dev, - &sensor_dev_attr_fan3_input16.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_fan3_min16.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_fan3_alarm.dev_attr))) - goto ERROR4; - } - if (data->has_fan & (1 << 3)) { - if ((err = device_create_file(dev, - &sensor_dev_attr_fan4_input16.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_fan4_min16.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_fan4_alarm.dev_attr))) - goto ERROR4; - } - if (data->has_fan & (1 << 4)) { - if ((err = device_create_file(dev, - &sensor_dev_attr_fan5_input16.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_fan5_min16.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_fan5_alarm.dev_attr))) - goto ERROR4; - } - } else { - /* 8-bit tachometers with clock divider */ - if (data->has_fan & (1 << 0)) { - if ((err = device_create_file(dev, - &sensor_dev_attr_fan1_input.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_fan1_min.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_fan1_div.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_fan1_alarm.dev_attr))) - goto ERROR4; - } - if (data->has_fan & (1 << 1)) { - if ((err = device_create_file(dev, - &sensor_dev_attr_fan2_input.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_fan2_min.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_fan2_div.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_fan2_alarm.dev_attr))) - goto ERROR4; - } - if (data->has_fan & (1 << 2)) { - if ((err = device_create_file(dev, - &sensor_dev_attr_fan3_input.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_fan3_min.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_fan3_div.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_fan3_alarm.dev_attr))) + fan_group = it87_get_fan_group(data); + fan_beep_need_rw = 1; + for (i = 0; i < 5; i++) { + if (!(data->has_fan & (1 << i))) + continue; + err = sysfs_create_group(&dev->kobj, &fan_group[i]); + if (err) + goto ERROR4; + + if (sio_data->beep_pin) { + err = sysfs_create_file(&dev->kobj, + it87_attributes_fan_beep[i]); + if (err) goto ERROR4; + if (!fan_beep_need_rw) + continue; + + /* As we have a single beep enable bit for all fans, + * only the first enabled fan has a writable attribute + * for it. */ + if (sysfs_chmod_file(&dev->kobj, + it87_attributes_fan_beep[i], + S_IRUGO | S_IWUSR)) + dev_dbg(dev, "chmod +w fan%d_beep failed\n", + i + 1); + fan_beep_need_rw = 0; } } if (enable_pwm_interface) { - if (!(sio_data->skip_pwm & (1 << 0))) { - if ((err = device_create_file(dev, - &sensor_dev_attr_pwm1_enable.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_pwm1.dev_attr)) - || (err = device_create_file(dev, - &dev_attr_pwm1_freq))) - goto ERROR4; - } - if (!(sio_data->skip_pwm & (1 << 1))) { - if ((err = device_create_file(dev, - &sensor_dev_attr_pwm2_enable.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_pwm2.dev_attr)) - || (err = device_create_file(dev, - &dev_attr_pwm2_freq))) + for (i = 0; i < 3; i++) { + if (sio_data->skip_pwm & (1 << i)) + continue; + err = sysfs_create_group(&dev->kobj, + &it87_group_pwm[i]); + if (err) goto ERROR4; - } - if (!(sio_data->skip_pwm & (1 << 2))) { - if ((err = device_create_file(dev, - &sensor_dev_attr_pwm3_enable.dev_attr)) - || (err = device_create_file(dev, - &sensor_dev_attr_pwm3.dev_attr)) - || (err = device_create_file(dev, - &dev_attr_pwm3_freq))) + + if (!has_old_autopwm(data)) + continue; + err = sysfs_create_group(&dev->kobj, + &it87_group_autopwm[i]); + if (err) goto ERROR4; } } @@ -1268,10 +1720,8 @@ static int __devinit it87_probe(struct platform_device *pdev) data->vrm = vid_which_vrm(); /* VID reading from Super-I/O config space if available */ data->vid = sio_data->vid_value; - if ((err = device_create_file(dev, - &dev_attr_vrm)) - || (err = device_create_file(dev, - &dev_attr_cpu0_vid))) + err = sysfs_create_group(&dev->kobj, &it87_group_vid); + if (err) goto ERROR4; } @@ -1284,8 +1734,7 @@ static int __devinit it87_probe(struct platform_device *pdev) return 0; ERROR4: - sysfs_remove_group(&dev->kobj, &it87_group); - sysfs_remove_group(&dev->kobj, &it87_group_opt); + it87_remove_files(dev); ERROR2: platform_set_drvdata(pdev, NULL); kfree(data); @@ -1300,8 +1749,7 @@ static int __devexit it87_remove(struct platform_device *pdev) struct it87_data *data = platform_get_drvdata(pdev); hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&pdev->dev.kobj, &it87_group); - sysfs_remove_group(&pdev->dev.kobj, &it87_group_opt); + it87_remove_files(&pdev->dev); release_region(data->addr, IT87_EC_EXTENT); platform_set_drvdata(pdev, NULL); @@ -1387,15 +1835,18 @@ static void __devinit it87_init_device(struct platform_device *pdev) int tmp, i; u8 mask; - /* initialize to sane defaults: - * - if the chip is in manual pwm mode, this will be overwritten with - * the actual settings on the chip (so in this case, initialization - * is not needed) - * - if in automatic or on/off mode, we could switch to manual mode, - * read the registers and set manual_pwm_ctl accordingly, but currently - * this is not implemented, so we initialize to something sane */ + /* For each PWM channel: + * - If it is in automatic mode, setting to manual mode should set + * the fan to full speed by default. + * - If it is in manual mode, we need a mapping to temperature + * channels to use when later setting to automatic mode later. + * Use a 1:1 mapping by default (we are clueless.) + * In both cases, the value can (and should) be changed by the user + * prior to switching to a different mode. */ for (i = 0; i < 3; i++) { - data->manual_pwm_ctl[i] = 0xff; + data->pwm_temp_map[i] = i; + data->pwm_duty[i] = 0x7f; /* Full speed */ + data->auto_pwm[i][3] = 0x7f; /* Full speed, hard-coded */ } /* Some chips seem to have default value 0xff for all limit @@ -1414,14 +1865,10 @@ static void __devinit it87_init_device(struct platform_device *pdev) it87_write_value(data, IT87_REG_TEMP_HIGH(i), 127); } - /* Check if temperature channels are reset manually or by some reason */ - tmp = it87_read_value(data, IT87_REG_TEMP_ENABLE); - if ((tmp & 0x3f) == 0) { - /* Temp1,Temp3=thermistor; Temp2=thermal diode */ - tmp = (tmp & 0xc0) | 0x2a; - it87_write_value(data, IT87_REG_TEMP_ENABLE, tmp); - } - data->sensor = tmp; + /* Temperature channels are not forcibly enabled, as they can be + * set to two different sensor types and we can't guess which one + * is correct for a given system. These channels can be enabled at + * run-time through the temp{1-3}_type sysfs accessors if needed. */ /* Check if voltage monitors are reset manually or by some reason */ tmp = it87_read_value(data, IT87_REG_VIN_ENABLE); @@ -1436,7 +1883,8 @@ static void __devinit it87_init_device(struct platform_device *pdev) if ((data->fan_main_ctrl & mask) == 0) { /* Enable all fan tachometers */ data->fan_main_ctrl |= mask; - it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, data->fan_main_ctrl); + it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, + data->fan_main_ctrl); } data->has_fan = (data->fan_main_ctrl >> 4) & 0x07; @@ -1461,30 +1909,32 @@ static void __devinit it87_init_device(struct platform_device *pdev) /* Fan input pins may be used for alternative functions */ data->has_fan &= ~sio_data->skip_fan; - /* Set current fan mode registers and the default settings for the - * other mode registers */ - for (i = 0; i < 3; i++) { - if (data->fan_main_ctrl & (1 << i)) { - /* pwm mode */ - tmp = it87_read_value(data, IT87_REG_PWM(i)); - if (tmp & 0x80) { - /* automatic pwm - not yet implemented, but - * leave the settings made by the BIOS alone - * until a change is requested via the sysfs - * interface */ - } else { - /* manual pwm */ - data->manual_pwm_ctl[i] = PWM_FROM_REG(tmp); - } - } - } - /* Start monitoring */ it87_write_value(data, IT87_REG_CONFIG, (it87_read_value(data, IT87_REG_CONFIG) & 0x36) | (update_vbat ? 0x41 : 0x01)); } +static void it87_update_pwm_ctrl(struct it87_data *data, int nr) +{ + data->pwm_ctrl[nr] = it87_read_value(data, IT87_REG_PWM(nr)); + if (data->pwm_ctrl[nr] & 0x80) /* Automatic mode */ + data->pwm_temp_map[nr] = data->pwm_ctrl[nr] & 0x03; + else /* Manual mode */ + data->pwm_duty[nr] = data->pwm_ctrl[nr] & 0x7f; + + if (has_old_autopwm(data)) { + int i; + + for (i = 0; i < 5 ; i++) + data->auto_temp[nr][i] = it87_read_value(data, + IT87_REG_AUTO_TEMP(nr, i)); + for (i = 0; i < 3 ; i++) + data->auto_pwm[nr][i] = it87_read_value(data, + IT87_REG_AUTO_PWM(nr, i)); + } +} + static struct it87_data *it87_update_device(struct device *dev) { struct it87_data *data = dev_get_drvdata(dev); @@ -1494,24 +1944,22 @@ static struct it87_data *it87_update_device(struct device *dev) if (time_after(jiffies, data->last_updated + HZ + HZ / 2) || !data->valid) { - if (update_vbat) { /* Cleared after each update, so reenable. Value - returned by this read will be previous value */ + returned by this read will be previous value */ it87_write_value(data, IT87_REG_CONFIG, - it87_read_value(data, IT87_REG_CONFIG) | 0x40); + it87_read_value(data, IT87_REG_CONFIG) | 0x40); } for (i = 0; i <= 7; i++) { data->in[i] = - it87_read_value(data, IT87_REG_VIN(i)); + it87_read_value(data, IT87_REG_VIN(i)); data->in_min[i] = - it87_read_value(data, IT87_REG_VIN_MIN(i)); + it87_read_value(data, IT87_REG_VIN_MIN(i)); data->in_max[i] = - it87_read_value(data, IT87_REG_VIN_MAX(i)); + it87_read_value(data, IT87_REG_VIN_MAX(i)); } /* in8 (battery) has no limit registers */ - data->in[8] = - it87_read_value(data, IT87_REG_VIN(8)); + data->in[8] = it87_read_value(data, IT87_REG_VIN(8)); for (i = 0; i < 5; i++) { /* Skip disabled fans */ @@ -1519,7 +1967,7 @@ static struct it87_data *it87_update_device(struct device *dev) continue; data->fan_min[i] = - it87_read_value(data, IT87_REG_FAN_MIN[i]); + it87_read_value(data, IT87_REG_FAN_MIN[i]); data->fan[i] = it87_read_value(data, IT87_REG_FAN[i]); /* Add high byte if in 16-bit mode */ @@ -1532,11 +1980,11 @@ static struct it87_data *it87_update_device(struct device *dev) } for (i = 0; i < 3; i++) { data->temp[i] = - it87_read_value(data, IT87_REG_TEMP(i)); + it87_read_value(data, IT87_REG_TEMP(i)); data->temp_high[i] = - it87_read_value(data, IT87_REG_TEMP_HIGH(i)); + it87_read_value(data, IT87_REG_TEMP_HIGH(i)); data->temp_low[i] = - it87_read_value(data, IT87_REG_TEMP_LOW(i)); + it87_read_value(data, IT87_REG_TEMP_LOW(i)); } /* Newer chips don't have clock dividers */ @@ -1551,9 +1999,13 @@ static struct it87_data *it87_update_device(struct device *dev) it87_read_value(data, IT87_REG_ALARM1) | (it87_read_value(data, IT87_REG_ALARM2) << 8) | (it87_read_value(data, IT87_REG_ALARM3) << 16); + data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE); + data->fan_main_ctrl = it87_read_value(data, IT87_REG_FAN_MAIN_CTRL); data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL); + for (i = 0; i < 3; i++) + it87_update_pwm_ctrl(data, i); data->sensor = it87_read_value(data, IT87_REG_TEMP_ENABLE); /* The 8705 does not have VID capability. @@ -1628,7 +2080,7 @@ exit: static int __init sm_it87_init(void) { int err; - unsigned short isa_address=0; + unsigned short isa_address = 0; struct it87_sio_data sio_data; memset(&sio_data, 0, sizeof(struct it87_sio_data)); @@ -1640,7 +2092,7 @@ static int __init sm_it87_init(void) return err; err = it87_device_add(isa_address, &sio_data); - if (err){ + if (err) { platform_driver_unregister(&it87_driver); return err; } @@ -1661,7 +2113,8 @@ MODULE_DESCRIPTION("IT8705F/8712F/8716F/8718F/8720F/8726F, SiS950 driver"); module_param(update_vbat, bool, 0); MODULE_PARM_DESC(update_vbat, "Update vbat if set else return powerup value"); module_param(fix_pwm_polarity, bool, 0); -MODULE_PARM_DESC(fix_pwm_polarity, "Force PWM polarity to active high (DANGEROUS)"); +MODULE_PARM_DESC(fix_pwm_polarity, + "Force PWM polarity to active high (DANGEROUS)"); MODULE_LICENSE("GPL"); module_init(sm_it87_init); |