X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fhwmon%2Fit87.c;h=f1133081cc42789b642a9e11c76c5efa6749a618;hb=e002bcc2f8e766a96472379e3b4a8a4e8938a93e;hp=ad6c8a319903eeb8bf9fcd08950b0b58ddeba605;hpb=8f859016ea49cd8d7c743533bd1ab3db9a813ffa;p=pandora-kernel.git diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c index ad6c8a319903..f1133081cc42 100644 --- a/drivers/hwmon/it87.c +++ b/drivers/hwmon/it87.c @@ -17,8 +17,8 @@ IT8726F Super I/O chip w/LPC interface Sis950 A clone of the IT8705F - Copyright (C) 2001 Chris Gauthron - Copyright (C) 2005-2006 Jean Delvare + Copyright (C) 2001 Chris Gauthron + Copyright (C) 2005-2007 Jean Delvare 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 @@ -52,6 +52,10 @@ enum chips { it87, it8712, it8716, it8718 }; +static unsigned short force_id; +module_param(force_id, ushort, 0); +MODULE_PARM_DESC(force_id, "Override the detected device ID"); + static struct platform_device *pdev; #define REG 0x2e /* The register to read/write */ @@ -147,9 +151,9 @@ static int fix_pwm_polarity; /* The IT8718F has the VID value in a different register, in Super-I/O configuration space. */ #define IT87_REG_VID 0x0a -/* Warning: register 0x0b is used for something completely different in - new chips/revisions. I suspect only 16-bit tachometer mode will work - for these. */ +/* The IT8705F and IT8712F earlier than revision 0x08 use register 0x0b + for fan divisors. Later IT8712F revisions must use 16-bit tachometer + mode. */ #define IT87_REG_FAN_DIV 0x0b #define IT87_REG_FAN_16BIT 0x0c @@ -230,6 +234,7 @@ static const unsigned int pwm_freq[8] = { struct it87_sio_data { enum chips type; /* Values read from Super-I/O config space */ + u8 revision; u8 vid_value; }; @@ -238,6 +243,7 @@ struct it87_sio_data { struct it87_data { struct device *hwmon_dev; enum chips type; + u8 revision; unsigned short addr; const char *name; @@ -264,6 +270,16 @@ struct it87_data { u8 manual_pwm_ctl[3]; /* manual PWM value set by user */ }; +static inline int has_16bit_fans(const struct it87_data *data) +{ + /* IT8705F Datasheet 0.4.1, 3h == Version G. + IT8712F Datasheet 0.9.1, section 8.3.5 indicates 8h == Version J. + These are the first revisions with 16bit tachometer support. */ + return (data->type == it87 && data->revision >= 0x03) + || (data->type == it8712 && data->revision >= 0x08) + || data->type == it8716 + || data->type == it8718; +} static int it87_probe(struct platform_device *pdev); static int __devexit it87_remove(struct platform_device *pdev); @@ -776,6 +792,30 @@ static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, ch } static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); +static ssize_t show_alarm(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->alarms >> bitnr) & 1); +} +static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 8); +static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 9); +static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 10); +static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 11); +static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 12); +static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 13); +static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 14); +static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 15); +static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 0); +static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 1); +static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 2); +static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 3); +static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 6); +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) { @@ -837,6 +877,14 @@ static struct attribute *it87_attributes[] = { &sensor_dev_attr_in5_max.dev_attr.attr, &sensor_dev_attr_in6_max.dev_attr.attr, &sensor_dev_attr_in7_max.dev_attr.attr, + &sensor_dev_attr_in0_alarm.dev_attr.attr, + &sensor_dev_attr_in1_alarm.dev_attr.attr, + &sensor_dev_attr_in2_alarm.dev_attr.attr, + &sensor_dev_attr_in3_alarm.dev_attr.attr, + &sensor_dev_attr_in4_alarm.dev_attr.attr, + &sensor_dev_attr_in5_alarm.dev_attr.attr, + &sensor_dev_attr_in6_alarm.dev_attr.attr, + &sensor_dev_attr_in7_alarm.dev_attr.attr, &sensor_dev_attr_temp1_input.dev_attr.attr, &sensor_dev_attr_temp2_input.dev_attr.attr, @@ -850,6 +898,9 @@ static struct attribute *it87_attributes[] = { &sensor_dev_attr_temp1_type.dev_attr.attr, &sensor_dev_attr_temp2_type.dev_attr.attr, &sensor_dev_attr_temp3_type.dev_attr.attr, + &sensor_dev_attr_temp1_alarm.dev_attr.attr, + &sensor_dev_attr_temp2_alarm.dev_attr.attr, + &sensor_dev_attr_temp3_alarm.dev_attr.attr, &dev_attr_alarms.attr, &dev_attr_name.attr, @@ -882,12 +933,21 @@ static struct attribute *it87_attributes_opt[] = { &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, + &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, + &dev_attr_pwm2_freq.attr, + &dev_attr_pwm3_freq.attr, &dev_attr_vrm.attr, &dev_attr_cpu0_vid.attr, @@ -906,7 +966,7 @@ static int __init it87_find(unsigned short *address, u16 chip_type; superio_enter(); - chip_type = superio_inw(DEVID); + chip_type = force_id ? force_id : superio_inw(DEVID); switch (chip_type) { case IT8705F_DEVID: @@ -943,8 +1003,9 @@ static int __init it87_find(unsigned short *address, } err = 0; + sio_data->revision = superio_inb(DEVREV) & 0x0f; pr_info("it87: Found IT%04xF chip at 0x%x, revision %d\n", - chip_type, *address, superio_inb(DEVREV) & 0x0f); + chip_type, *address, sio_data->revision); /* Read GPIO config and VID value from LDN 7 (GPIO) */ if (chip_type != IT8705F_DEVID) { @@ -997,6 +1058,7 @@ static int __devinit it87_probe(struct platform_device *pdev) data->addr = res->start; data->type = sio_data->type; + data->revision = sio_data->revision; data->name = names[sio_data->type]; /* Now, we do the remaining detection. */ @@ -1021,41 +1083,51 @@ static int __devinit it87_probe(struct platform_device *pdev) goto ERROR2; /* Do not create fan files for disabled fans */ - if (data->type == it8716 || data->type == it8718) { + 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))) + &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))) + &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))) + &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))) + &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))) + &sensor_dev_attr_fan5_min16.dev_attr)) + || (err = device_create_file(dev, + &sensor_dev_attr_fan5_alarm.dev_attr))) goto ERROR4; } } else { @@ -1066,7 +1138,9 @@ static int __devinit it87_probe(struct platform_device *pdev) || (err = device_create_file(dev, &sensor_dev_attr_fan1_min.dev_attr)) || (err = device_create_file(dev, - &sensor_dev_attr_fan1_div.dev_attr))) + &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)) { @@ -1075,7 +1149,9 @@ static int __devinit it87_probe(struct platform_device *pdev) || (err = device_create_file(dev, &sensor_dev_attr_fan2_min.dev_attr)) || (err = device_create_file(dev, - &sensor_dev_attr_fan2_div.dev_attr))) + &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)) { @@ -1084,7 +1160,9 @@ static int __devinit it87_probe(struct platform_device *pdev) || (err = device_create_file(dev, &sensor_dev_attr_fan3_min.dev_attr)) || (err = device_create_file(dev, - &sensor_dev_attr_fan3_div.dev_attr))) + &sensor_dev_attr_fan3_div.dev_attr)) + || (err = device_create_file(dev, + &sensor_dev_attr_fan3_alarm.dev_attr))) goto ERROR4; } } @@ -1286,7 +1364,7 @@ static void __devinit it87_init_device(struct platform_device *pdev) data->has_fan = (data->fan_main_ctrl >> 4) & 0x07; /* Set tachometers to 16-bit mode if needed */ - if (data->type == it8716 || data->type == it8718) { + if (has_16bit_fans(data)) { tmp = it87_read_value(data, IT87_REG_FAN_16BIT); if (~tmp & 0x07 & data->has_fan) { dev_dbg(&pdev->dev, @@ -1294,10 +1372,13 @@ static void __devinit it87_init_device(struct platform_device *pdev) it87_write_value(data, IT87_REG_FAN_16BIT, tmp | 0x07); } - if (tmp & (1 << 4)) - data->has_fan |= (1 << 3); /* fan4 enabled */ - if (tmp & (1 << 5)) - data->has_fan |= (1 << 4); /* fan5 enabled */ + /* IT8705F only supports three fans. */ + if (data->type != it87) { + if (tmp & (1 << 4)) + data->has_fan |= (1 << 3); /* fan4 enabled */ + if (tmp & (1 << 5)) + data->has_fan |= (1 << 4); /* fan5 enabled */ + } } /* Set current fan mode registers and the default settings for the @@ -1362,7 +1443,7 @@ static struct it87_data *it87_update_device(struct device *dev) data->fan[i] = it87_read_value(data, IT87_REG_FAN[i]); /* Add high byte if in 16-bit mode */ - if (data->type == it8716 || data->type == it8718) { + if (has_16bit_fans(data)) { data->fan[i] |= it87_read_value(data, IT87_REG_FANX[i]) << 8; data->fan_min[i] |= it87_read_value(data, @@ -1379,8 +1460,7 @@ static struct it87_data *it87_update_device(struct device *dev) } /* Newer chips don't have clock dividers */ - if ((data->has_fan & 0x07) && data->type != it8716 - && data->type != it8718) { + if ((data->has_fan & 0x07) && !has_16bit_fans(data)) { i = it87_read_value(data, IT87_REG_FAN_DIV); data->fan_div[0] = i & 0x07; data->fan_div[1] = (i >> 3) & 0x07; @@ -1396,7 +1476,8 @@ static struct it87_data *it87_update_device(struct device *dev) data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL); data->sensor = it87_read_value(data, IT87_REG_TEMP_ENABLE); - /* The 8705 does not have VID capability */ + /* The 8705 does not have VID capability. + The 8718 does not use IT87_REG_VID for the same purpose. */ if (data->type == it8712 || data->type == it8716) { data->vid = it87_read_value(data, IT87_REG_VID); /* The older IT8712F revisions had only 5 VID pins, @@ -1488,7 +1569,7 @@ static void __exit sm_it87_exit(void) } -MODULE_AUTHOR("Chris Gauthron , " +MODULE_AUTHOR("Chris Gauthron, " "Jean Delvare "); MODULE_DESCRIPTION("IT8705F/8712F/8716F/8718F/8726F, SiS950 driver"); module_param(update_vbat, bool, 0);