| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Aurelien Jarno | 2484 | 57.70% | 1 | 3.33% |
| Jean Delvare | 1207 | 28.04% | 8 | 26.67% |
| Ivo Manca | 297 | 6.90% | 2 | 6.67% |
| Guenter Roeck | 170 | 3.95% | 4 | 13.33% |
| Yani Ioannou | 30 | 0.70% | 1 | 3.33% |
| Mark M. Hoffman | 29 | 0.67% | 2 | 6.67% |
| Ingo Molnar | 24 | 0.56% | 1 | 3.33% |
| Joe Perches | 13 | 0.30% | 1 | 3.33% |
| Julia Lawall | 12 | 0.28% | 1 | 3.33% |
| Dan Carpenter | 9 | 0.21% | 1 | 3.33% |
| Laurent Riffard | 7 | 0.16% | 1 | 3.33% |
| Tony Jones | 6 | 0.14% | 1 | 3.33% |
| Jingoo Han | 6 | 0.14% | 1 | 3.33% |
| Auke-Jan H Kok | 4 | 0.09% | 1 | 3.33% |
| Dominik Hackl | 3 | 0.07% | 1 | 3.33% |
| Darren Jenkins | 2 | 0.05% | 1 | 3.33% |
| H Hartley Sweeten | 1 | 0.02% | 1 | 3.33% |
| Axel Lin | 1 | 0.02% | 1 | 3.33% |
| Total | 4305 | 30 |
/* * sis5595.c - Part of lm_sensors, Linux kernel modules * for hardware monitoring * * Copyright (C) 1998 - 2001 Frodo Looijaard <frodol@dds.nl>, * Kyösti Mälkki <kmalkki@cc.hut.fi>, and * Mark D. Studebaker <mdsxyz123@yahoo.com> * Ported to Linux 2.6 by Aurelien Jarno <aurelien@aurel32.net> with * the help of Jean Delvare <jdelvare@suse.de> * * 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. */ /* * SiS southbridge has a LM78-like chip integrated on the same IC. * This driver is a customized copy of lm78.c * * Supports following revisions: * Version PCI ID PCI Revision * 1 1039/0008 AF or less * 2 1039/0008 B0 or greater * * Note: these chips contain a 0008 device which is incompatible with the * 5595. We recognize these by the presence of the listed * "blacklist" PCI ID and refuse to load. * * NOT SUPPORTED PCI ID BLACKLIST PCI ID * 540 0008 0540 * 550 0008 0550 * 5513 0008 5511 * 5581 0008 5597 * 5582 0008 5597 * 5597 0008 5597 * 5598 0008 5597/5598 * 630 0008 0630 * 645 0008 0645 * 730 0008 0730 * 735 0008 0735 */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include <linux/module.h> #include <linux/slab.h> #include <linux/ioport.h> #include <linux/pci.h> #include <linux/platform_device.h> #include <linux/hwmon.h> #include <linux/hwmon-sysfs.h> #include <linux/err.h> #include <linux/init.h> #include <linux/jiffies.h> #include <linux/mutex.h> #include <linux/sysfs.h> #include <linux/acpi.h> #include <linux/io.h> /* * If force_addr is set to anything different from 0, we forcibly enable * the device at the given address. */ static u16 force_addr; module_param(force_addr, ushort, 0); MODULE_PARM_DESC(force_addr, "Initialize the base address of the sensors"); static struct platform_device *pdev; /* Many SIS5595 constants specified below */ /* Length of ISA address segment */ #define SIS5595_EXTENT 8 /* PCI Config Registers */ #define SIS5595_BASE_REG 0x68 #define SIS5595_PIN_REG 0x7A #define SIS5595_ENABLE_REG 0x7B /* Where are the ISA address/data registers relative to the base address */ #define SIS5595_ADDR_REG_OFFSET 5 #define SIS5595_DATA_REG_OFFSET 6 /* The SIS5595 registers */ #define SIS5595_REG_IN_MAX(nr) (0x2b + (nr) * 2) #define SIS5595_REG_IN_MIN(nr) (0x2c + (nr) * 2) #define SIS5595_REG_IN(nr) (0x20 + (nr)) #define SIS5595_REG_FAN_MIN(nr) (0x3b + (nr)) #define SIS5595_REG_FAN(nr) (0x28 + (nr)) /* * On the first version of the chip, the temp registers are separate. * On the second version, * TEMP pin is shared with IN4, configured in PCI register 0x7A. * The registers are the same as well. * OVER and HYST are really MAX and MIN. */ #define REV2MIN 0xb0 #define SIS5595_REG_TEMP (((data->revision) >= REV2MIN) ? \ SIS5595_REG_IN(4) : 0x27) #define SIS5595_REG_TEMP_OVER (((data->revision) >= REV2MIN) ? \ SIS5595_REG_IN_MAX(4) : 0x39) #define SIS5595_REG_TEMP_HYST (((data->revision) >= REV2MIN) ? \ SIS5595_REG_IN_MIN(4) : 0x3a) #define SIS5595_REG_CONFIG 0x40 #define SIS5595_REG_ALARM1 0x41 #define SIS5595_REG_ALARM2 0x42 #define SIS5595_REG_FANDIV 0x47 /* * Conversions. Limit checking is only done on the TO_REG * variants. */ /* * IN: mV, (0V to 4.08V) * REG: 16mV/bit */ static inline u8 IN_TO_REG(unsigned long val) { unsigned long nval = clamp_val(val, 0, 4080); return (nval + 8) / 16; } #define IN_FROM_REG(val) ((val) * 16) static inline u8 FAN_TO_REG(long rpm, int div) { if (rpm <= 0) return 255; if (rpm > 1350000) return 1; return clamp_val((1350000 + rpm * div / 2) / (rpm * div), 1, 254); } static inline int FAN_FROM_REG(u8 val, int div) { return val == 0 ? -1 : val == 255 ? 0 : 1350000 / (val * div); } /* * TEMP: mC (-54.12C to +157.53C) * REG: 0.83C/bit + 52.12, two's complement */ static inline int TEMP_FROM_REG(s8 val) { return val * 830 + 52120; } static inline s8 TEMP_TO_REG(long val) { int nval = clamp_val(val, -54120, 157530) ; return nval < 0 ? (nval - 5212 - 415) / 830 : (nval - 5212 + 415) / 830; } /* * FAN DIV: 1, 2, 4, or 8 (defaults to 2) * REG: 0, 1, 2, or 3 (respectively) (defaults to 1) */ static inline u8 DIV_TO_REG(int val) { return val == 8 ? 3 : val == 4 ? 2 : val == 1 ? 0 : 1; } #define DIV_FROM_REG(val) (1 << (val)) /* * For each registered chip, we need to keep some data in memory. * The structure is dynamically allocated. */ struct sis5595_data { unsigned short addr; const char *name; struct device *hwmon_dev; struct mutex lock; struct mutex update_lock; char valid; /* !=0 if following fields are valid */ unsigned long last_updated; /* In jiffies */ char maxins; /* == 3 if temp enabled, otherwise == 4 */ u8 revision; /* Reg. value */ u8 in[5]; /* Register value */ u8 in_max[5]; /* Register value */ u8 in_min[5]; /* Register value */ u8 fan[2]; /* Register value */ u8 fan_min[2]; /* Register value */ s8 temp; /* Register value */ s8 temp_over; /* Register value */ s8 temp_hyst; /* Register value */ u8 fan_div[2]; /* Register encoding, shifted right */ u16 alarms; /* Register encoding, combined */ }; static struct pci_dev *s_bridge; /* pointer to the (only) sis5595 */ static int sis5595_probe(struct platform_device *pdev); static int sis5595_remove(struct platform_device *pdev); static int sis5595_read_value(struct sis5595_data *data, u8 reg); static void sis5595_write_value(struct sis5595_data *data, u8 reg, u8 value); static struct sis5595_data *sis5595_update_device(struct device *dev); static void sis5595_init_device(struct sis5595_data *data); static struct platform_driver sis5595_driver = { .driver = { .name = "sis5595", }, .probe = sis5595_probe, .remove = sis5595_remove, }; /* 4 Voltages */ static ssize_t show_in(struct device *dev, struct device_attribute *da, char *buf) { struct sis5595_data *data = sis5595_update_device(dev); struct sensor_device_attribute *attr = to_sensor_dev_attr(da); int nr = attr->index; return sprintf(buf, "%d\n", IN_FROM_REG(data->in[nr])); } static ssize_t show_in_min(struct device *dev, struct device_attribute *da, char *buf) { struct sis5595_data *data = sis5595_update_device(dev); struct sensor_device_attribute *attr = to_sensor_dev_attr(da); int nr = attr->index; return sprintf(buf, "%d\n", IN_FROM_REG(data->in_min[nr])); } static ssize_t show_in_max(struct device *dev, struct device_attribute *da, char *buf) { struct sis5595_data *data = sis5595_update_device(dev); struct sensor_device_attribute *attr = to_sensor_dev_attr(da); int nr = attr->index; return sprintf(buf, "%d\n", IN_FROM_REG(data->in_max[nr])); } static ssize_t set_in_min(struct device *dev, struct device_attribute *da, const char *buf, size_t count) { struct sis5595_data *data = dev_get_drvdata(dev); struct sensor_device_attribute *attr = to_sensor_dev_attr(da); int nr = attr->index; unsigned long val; int err; err = kstrtoul(buf, 10, &val); if (err) return err; mutex_lock(&data->update_lock); data->in_min[nr] = IN_TO_REG(val); sis5595_write_value(data, SIS5595_REG_IN_MIN(nr), data->in_min[nr]); mutex_unlock(&data->update_lock); return count; } static ssize_t set_in_max(struct device *dev, struct device_attribute *da, const char *buf, size_t count) { struct sis5595_data *data = dev_get_drvdata(dev); struct sensor_device_attribute *attr = to_sensor_dev_attr(da); int nr = attr->index; unsigned long val; int err; err = kstrtoul(buf, 10, &val); if (err) return err; mutex_lock(&data->update_lock); data->in_max[nr] = IN_TO_REG(val); sis5595_write_value(data, SIS5595_REG_IN_MAX(nr), data->in_max[nr]); mutex_unlock(&data->update_lock); return count; } #define show_in_offset(offset) \ static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \ show_in, NULL, offset); \ static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ show_in_min, set_in_min, offset); \ static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ show_in_max, set_in_max, offset); show_in_offset(0); show_in_offset(1); show_in_offset(2); show_in_offset(3); show_in_offset(4); /* Temperature */ static ssize_t temp1_input_show(struct device *dev, struct device_attribute *attr, char *buf) { struct sis5595_data *data = sis5595_update_device(dev); return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp)); } static ssize_t temp1_max_show(struct device *dev, struct device_attribute *attr, char *buf) { struct sis5595_data *data = sis5595_update_device(dev); return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_over)); } static ssize_t temp1_max_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct sis5595_data *data = dev_get_drvdata(dev); long val; int err; err = kstrtol(buf, 10, &val); if (err) return err; mutex_lock(&data->update_lock); data->temp_over = TEMP_TO_REG(val); sis5595_write_value(data, SIS5595_REG_TEMP_OVER, data->temp_over); mutex_unlock(&data->update_lock); return count; } static ssize_t temp1_max_hyst_show(struct device *dev, struct device_attribute *attr, char *buf) { struct sis5595_data *data = sis5595_update_device(dev); return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_hyst)); } static ssize_t temp1_max_hyst_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct sis5595_data *data = dev_get_drvdata(dev); long val; int err; err = kstrtol(buf, 10, &val); if (err) return err; mutex_lock(&data->update_lock); data->temp_hyst = TEMP_TO_REG(val); sis5595_write_value(data, SIS5595_REG_TEMP_HYST, data->temp_hyst); mutex_unlock(&data->update_lock); return count; } static DEVICE_ATTR_RO(temp1_input); static DEVICE_ATTR_RW(temp1_max); static DEVICE_ATTR_RW(temp1_max_hyst); /* 2 Fans */ static ssize_t show_fan(struct device *dev, struct device_attribute *da, char *buf) { struct sis5595_data *data = sis5595_update_device(dev); struct sensor_device_attribute *attr = to_sensor_dev_attr(da); int nr = attr->index; 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 *da, char *buf) { struct sis5595_data *data = sis5595_update_device(dev); struct sensor_device_attribute *attr = to_sensor_dev_attr(da); int nr = attr->index; return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr]))); } static ssize_t set_fan_min(struct device *dev, struct device_attribute *da, const char *buf, size_t count) { struct sis5595_data *data = dev_get_drvdata(dev); struct sensor_device_attribute *attr = to_sensor_dev_attr(da); int nr = attr->index; unsigned long val; int err; err = kstrtoul(buf, 10, &val); if (err) return err; mutex_lock(&data->update_lock); data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); sis5595_write_value(data, SIS5595_REG_FAN_MIN(nr), data->fan_min[nr]); mutex_unlock(&data->update_lock); return count; } static ssize_t show_fan_div(struct device *dev, struct device_attribute *da, char *buf) { struct sis5595_data *data = sis5595_update_device(dev); struct sensor_device_attribute *attr = to_sensor_dev_attr(da); int nr = attr->index; return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr])); } /* * Note: we save and restore the fan minimum here, because its value is * determined in part by the fan divisor. This follows the principle of * least surprise; the user doesn't expect the fan minimum to change just * because the divisor changed. */ static ssize_t set_fan_div(struct device *dev, struct device_attribute *da, const char *buf, size_t count) { struct sis5595_data *data = dev_get_drvdata(dev); struct sensor_device_attribute *attr = to_sensor_dev_attr(da); int nr = attr->index; unsigned long min; int reg; unsigned long val; int err; err = kstrtoul(buf, 10, &val); if (err) return err; mutex_lock(&data->update_lock); min = FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr])); reg = sis5595_read_value(data, SIS5595_REG_FANDIV); switch (val) { case 1: data->fan_div[nr] = 0; break; case 2: data->fan_div[nr] = 1; break; case 4: data->fan_div[nr] = 2; break; case 8: data->fan_div[nr] = 3; break; default: dev_err(dev, "fan_div value %ld not supported. Choose one of 1, 2, 4 or 8!\n", val); mutex_unlock(&data->update_lock); return -EINVAL; } switch (nr) { case 0: reg = (reg & 0xcf) | (data->fan_div[nr] << 4); break; case 1: reg = (reg & 0x3f) | (data->fan_div[nr] << 6); break; } sis5595_write_value(data, SIS5595_REG_FANDIV, reg); data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); sis5595_write_value(data, SIS5595_REG_FAN_MIN(nr), data->fan_min[nr]); mutex_unlock(&data->update_lock); return count; } #define show_fan_offset(offset) \ static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ show_fan, NULL, offset - 1); \ static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ show_fan_min, set_fan_min, offset - 1); \ static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \ show_fan_div, set_fan_div, offset - 1); show_fan_offset(1); show_fan_offset(2); /* Alarms */ static ssize_t alarms_show(struct device *dev, struct device_attribute *attr, char *buf) { struct sis5595_data *data = sis5595_update_device(dev); return sprintf(buf, "%d\n", data->alarms); } static DEVICE_ATTR_RO(alarms); static ssize_t show_alarm(struct device *dev, struct device_attribute *da, char *buf) { struct sis5595_data *data = sis5595_update_device(dev); int nr = to_sensor_dev_attr(da)->index; return sprintf(buf, "%u\n", (data->alarms >> nr) & 1); } static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0); static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1); static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2); static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3); static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 15); static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6); static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7); static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 15); static ssize_t name_show(struct device *dev, struct device_attribute *attr, char *buf) { struct sis5595_data *data = dev_get_drvdata(dev); return sprintf(buf, "%s\n", data->name); } static DEVICE_ATTR_RO(name); static struct attribute *sis5595_attributes[] = { &sensor_dev_attr_in0_input.dev_attr.attr, &sensor_dev_attr_in0_min.dev_attr.attr, &sensor_dev_attr_in0_max.dev_attr.attr, &sensor_dev_attr_in0_alarm.dev_attr.attr, &sensor_dev_attr_in1_input.dev_attr.attr, &sensor_dev_attr_in1_min.dev_attr.attr, &sensor_dev_attr_in1_max.dev_attr.attr, &sensor_dev_attr_in1_alarm.dev_attr.attr, &sensor_dev_attr_in2_input.dev_attr.attr, &sensor_dev_attr_in2_min.dev_attr.attr, &sensor_dev_attr_in2_max.dev_attr.attr, &sensor_dev_attr_in2_alarm.dev_attr.attr, &sensor_dev_attr_in3_input.dev_attr.attr, &sensor_dev_attr_in3_min.dev_attr.attr, &sensor_dev_attr_in3_max.dev_attr.attr, &sensor_dev_attr_in3_alarm.dev_attr.attr, &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, &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, &dev_attr_alarms.attr, &dev_attr_name.attr, NULL }; static const struct attribute_group sis5595_group = { .attrs = sis5595_attributes, }; static struct attribute *sis5595_attributes_in4[] = { &sensor_dev_attr_in4_input.dev_attr.attr, &sensor_dev_attr_in4_min.dev_attr.attr, &sensor_dev_attr_in4_max.dev_attr.attr, &sensor_dev_attr_in4_alarm.dev_attr.attr, NULL }; static const struct attribute_group sis5595_group_in4 = { .attrs = sis5595_attributes_in4, }; static struct attribute *sis5595_attributes_temp1[] = { &dev_attr_temp1_input.attr, &dev_attr_temp1_max.attr, &dev_attr_temp1_max_hyst.attr, &sensor_dev_attr_temp1_alarm.dev_attr.attr, NULL }; static const struct attribute_group sis5595_group_temp1 = { .attrs = sis5595_attributes_temp1, }; /* This is called when the module is loaded */ static int sis5595_probe(struct platform_device *pdev) { int err = 0; int i; struct sis5595_data *data; struct resource *res; char val; /* Reserve the ISA region */ res = platform_get_resource(pdev, IORESOURCE_IO, 0); if (!devm_request_region(&pdev->dev, res->start, SIS5595_EXTENT, sis5595_driver.driver.name)) return -EBUSY; data = devm_kzalloc(&pdev->dev, sizeof(struct sis5595_data), GFP_KERNEL); if (!data) return -ENOMEM; mutex_init(&data->lock); mutex_init(&data->update_lock); data->addr = res->start; data->name = "sis5595"; platform_set_drvdata(pdev, data); /* * Check revision and pin registers to determine whether 4 or 5 voltages */ data->revision = s_bridge->revision; /* 4 voltages, 1 temp */ data->maxins = 3; if (data->revision >= REV2MIN) { pci_read_config_byte(s_bridge, SIS5595_PIN_REG, &val); if (!(val & 0x80)) /* 5 voltages, no temps */ data->maxins = 4; } /* Initialize the SIS5595 chip */ sis5595_init_device(data); /* A few vars need to be filled upon startup */ for (i = 0; i < 2; i++) { data->fan_min[i] = sis5595_read_value(data, SIS5595_REG_FAN_MIN(i)); } /* Register sysfs hooks */ err = sysfs_create_group(&pdev->dev.kobj, &sis5595_group); if (err) return err; if (data->maxins == 4) { err = sysfs_create_group(&pdev->dev.kobj, &sis5595_group_in4); if (err) goto exit_remove_files; } else { err = sysfs_create_group(&pdev->dev.kobj, &sis5595_group_temp1); if (err) goto exit_remove_files; } data->hwmon_dev = hwmon_device_register(&pdev->dev); if (IS_ERR(data->hwmon_dev)) { err = PTR_ERR(data->hwmon_dev); goto exit_remove_files; } return 0; exit_remove_files: sysfs_remove_group(&pdev->dev.kobj, &sis5595_group); sysfs_remove_group(&pdev->dev.kobj, &sis5595_group_in4); sysfs_remove_group(&pdev->dev.kobj, &sis5595_group_temp1); return err; } static int sis5595_remove(struct platform_device *pdev) { struct sis5595_data *data = platform_get_drvdata(pdev); hwmon_device_unregister(data->hwmon_dev); sysfs_remove_group(&pdev->dev.kobj, &sis5595_group); sysfs_remove_group(&pdev->dev.kobj, &sis5595_group_in4); sysfs_remove_group(&pdev->dev.kobj, &sis5595_group_temp1); return 0; } /* ISA access must be locked explicitly. */ static int sis5595_read_value(struct sis5595_data *data, u8 reg) { int res; mutex_lock(&data->lock); outb_p(reg, data->addr + SIS5595_ADDR_REG_OFFSET); res = inb_p(data->addr + SIS5595_DATA_REG_OFFSET); mutex_unlock(&data->lock); return res; } static void sis5595_write_value(struct sis5595_data *data, u8 reg, u8 value) { mutex_lock(&data->lock); outb_p(reg, data->addr + SIS5595_ADDR_REG_OFFSET); outb_p(value, data->addr + SIS5595_DATA_REG_OFFSET); mutex_unlock(&data->lock); } /* Called when we have found a new SIS5595. */ static void sis5595_init_device(struct sis5595_data *data) { u8 config = sis5595_read_value(data, SIS5595_REG_CONFIG); if (!(config & 0x01)) sis5595_write_value(data, SIS5595_REG_CONFIG, (config & 0xf7) | 0x01); } static struct sis5595_data *sis5595_update_device(struct device *dev) { struct sis5595_data *data = dev_get_drvdata(dev); int i; mutex_lock(&data->update_lock); if (time_after(jiffies, data->last_updated + HZ + HZ / 2) || !data->valid) { for (i = 0; i <= data->maxins; i++) { data->in[i] = sis5595_read_value(data, SIS5595_REG_IN(i)); data->in_min[i] = sis5595_read_value(data, SIS5595_REG_IN_MIN(i)); data->in_max[i] = sis5595_read_value(data, SIS5595_REG_IN_MAX(i)); } for (i = 0; i < 2; i++) { data->fan[i] = sis5595_read_value(data, SIS5595_REG_FAN(i)); data->fan_min[i] = sis5595_read_value(data, SIS5595_REG_FAN_MIN(i)); } if (data->maxins == 3) { data->temp = sis5595_read_value(data, SIS5595_REG_TEMP); data->temp_over = sis5595_read_value(data, SIS5595_REG_TEMP_OVER); data->temp_hyst = sis5595_read_value(data, SIS5595_REG_TEMP_HYST); } i = sis5595_read_value(data, SIS5595_REG_FANDIV); data->fan_div[0] = (i >> 4) & 0x03; data->fan_div[1] = i >> 6; data->alarms = sis5595_read_value(data, SIS5595_REG_ALARM1) | (sis5595_read_value(data, SIS5595_REG_ALARM2) << 8); data->last_updated = jiffies; data->valid = 1; } mutex_unlock(&data->update_lock); return data; } static const struct pci_device_id sis5595_pci_ids[] = { { PCI_DEVICE(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503) }, { 0, } }; MODULE_DEVICE_TABLE(pci, sis5595_pci_ids); static int blacklist[] = { PCI_DEVICE_ID_SI_540, PCI_DEVICE_ID_SI_550, PCI_DEVICE_ID_SI_630, PCI_DEVICE_ID_SI_645, PCI_DEVICE_ID_SI_730, PCI_DEVICE_ID_SI_735, PCI_DEVICE_ID_SI_5511, /* * 5513 chip has the 0008 device but * that ID shows up in other chips so we * use the 5511 ID for recognition */ PCI_DEVICE_ID_SI_5597, PCI_DEVICE_ID_SI_5598, 0 }; static int sis5595_device_add(unsigned short address) { struct resource res = { .start = address, .end = address + SIS5595_EXTENT - 1, .name = "sis5595", .flags = IORESOURCE_IO, }; int err; err = acpi_check_resource_conflict(&res); if (err) goto exit; pdev = platform_device_alloc("sis5595", address); if (!pdev) { err = -ENOMEM; pr_err("Device allocation failed\n"); goto exit; } err = platform_device_add_resources(pdev, &res, 1); if (err) { pr_err("Device resource addition failed (%d)\n", err); goto exit_device_put; } err = platform_device_add(pdev); if (err) { pr_err("Device addition failed (%d)\n", err); goto exit_device_put; } return 0; exit_device_put: platform_device_put(pdev); exit: return err; } static int sis5595_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) { u16 address; u8 enable; int *i; for (i = blacklist; *i != 0; i++) { struct pci_dev *d; d = pci_get_device(PCI_VENDOR_ID_SI, *i, NULL); if (d) { dev_err(&d->dev, "Looked for SIS5595 but found unsupported device %.4x\n", *i); pci_dev_put(d); return -ENODEV; } } force_addr &= ~(SIS5595_EXTENT - 1); if (force_addr) { dev_warn(&dev->dev, "Forcing ISA address 0x%x\n", force_addr); pci_write_config_word(dev, SIS5595_BASE_REG, force_addr); } if (PCIBIOS_SUCCESSFUL != pci_read_config_word(dev, SIS5595_BASE_REG, &address)) { dev_err(&dev->dev, "Failed to read ISA address\n"); return -ENODEV; } address &= ~(SIS5595_EXTENT - 1); if (!address) { dev_err(&dev->dev, "Base address not set - upgrade BIOS or use force_addr=0xaddr\n"); return -ENODEV; } if (force_addr && address != force_addr) { /* doesn't work for some chips? */ dev_err(&dev->dev, "Failed to force ISA address\n"); return -ENODEV; } if (PCIBIOS_SUCCESSFUL != pci_read_config_byte(dev, SIS5595_ENABLE_REG, &enable)) { dev_err(&dev->dev, "Failed to read enable register\n"); return -ENODEV; } if (!(enable & 0x80)) { if ((PCIBIOS_SUCCESSFUL != pci_write_config_byte(dev, SIS5595_ENABLE_REG, enable | 0x80)) || (PCIBIOS_SUCCESSFUL != pci_read_config_byte(dev, SIS5595_ENABLE_REG, &enable)) || (!(enable & 0x80))) { /* doesn't work for some chips! */ dev_err(&dev->dev, "Failed to enable HWM device\n"); return -ENODEV; } } if (platform_driver_register(&sis5595_driver)) { dev_dbg(&dev->dev, "Failed to register sis5595 driver\n"); goto exit; } s_bridge = pci_dev_get(dev); /* Sets global pdev as a side effect */ if (sis5595_device_add(address)) goto exit_unregister; /* * Always return failure here. This is to allow other drivers to bind * to this pci device. We don't really want to have control over the * pci device, we only wanted to read as few register values from it. */ return -ENODEV; exit_unregister: pci_dev_put(dev); platform_driver_unregister(&sis5595_driver); exit: return -ENODEV; } static struct pci_driver sis5595_pci_driver = { .name = "sis5595", .id_table = sis5595_pci_ids, .probe = sis5595_pci_probe, }; static int __init sm_sis5595_init(void) { return pci_register_driver(&sis5595_pci_driver); } static void __exit sm_sis5595_exit(void) { pci_unregister_driver(&sis5595_pci_driver); if (s_bridge != NULL) { platform_device_unregister(pdev); platform_driver_unregister(&sis5595_driver); pci_dev_put(s_bridge); s_bridge = NULL; } } MODULE_AUTHOR("Aurelien Jarno <aurelien@aurel32.net>"); MODULE_DESCRIPTION("SiS 5595 Sensor device"); MODULE_LICENSE("GPL"); module_init(sm_sis5595_init); module_exit(sm_sis5595_exit);
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