diff options
Diffstat (limited to 'drivers/hwmon/dme1737.c')
| -rw-r--r-- | drivers/hwmon/dme1737.c | 954 |
1 files changed, 641 insertions, 313 deletions
diff --git a/drivers/hwmon/dme1737.c b/drivers/hwmon/dme1737.c index e9cbc727664..a878c98e252 100644 --- a/drivers/hwmon/dme1737.c +++ b/drivers/hwmon/dme1737.c @@ -1,12 +1,12 @@ /* - * dme1737.c - driver for the SMSC DME1737 and Asus A8000 Super-I/O chips - * integrated hardware monitoring features. + * dme1737.c - Driver for the SMSC DME1737, Asus A8000, and SMSC SCH311x + * Super-I/O chips integrated hardware monitoring features. * Copyright (c) 2007 Juerg Haefliger <juergh@gmail.com> * - * This driver is based on the LM85 driver. The hardware monitoring - * capabilities of the DME1737 are very similar to the LM85 with some - * additional features. Even though the DME1737 is a Super-I/O chip, the - * hardware monitoring registers are only accessible via SMBus. + * This driver is an I2C/ISA hybrid, meaning that it uses the I2C bus to access + * the chip registers if a DME1737 (or A8000) is found and the ISA bus if a + * SCH311x chip is found. Both types of chips have very similar hardware + * monitoring capabilities but differ in the way they can be accessed. * * 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 @@ -28,6 +28,7 @@ #include <linux/slab.h> #include <linux/jiffies.h> #include <linux/i2c.h> +#include <linux/platform_device.h> #include <linux/hwmon.h> #include <linux/hwmon-sysfs.h> #include <linux/hwmon-vid.h> @@ -35,6 +36,9 @@ #include <linux/mutex.h> #include <asm/io.h> +/* ISA device, if found */ +static struct platform_device *pdev; + /* Module load parameters */ static int force_start; module_param(force_start, bool, 0); @@ -133,6 +137,7 @@ static const u8 DME1737_BIT_ALARM_TEMP[] = {4, 5, 6}; static const u8 DME1737_BIT_ALARM_FAN[] = {10, 11, 12, 13, 22, 23}; /* Miscellaneous registers */ +#define DME1737_REG_DEVICE 0x3d #define DME1737_REG_COMPANY 0x3e #define DME1737_REG_VERSTEP 0x3f #define DME1737_REG_CONFIG 0x40 @@ -148,14 +153,20 @@ static const u8 DME1737_BIT_ALARM_FAN[] = {10, 11, 12, 13, 22, 23}; #define DME1737_COMPANY_SMSC 0x5c #define DME1737_VERSTEP 0x88 #define DME1737_VERSTEP_MASK 0xf8 +#define SCH311X_DEVICE 0x8c + +/* Length of ISA address segment */ +#define DME1737_EXTENT 2 /* --------------------------------------------------------------------- * Data structures and manipulation thereof * --------------------------------------------------------------------- */ +/* For ISA chips, we abuse the i2c_client addr and name fields. We also use + the driver field to differentiate between I2C and ISA chips. */ struct dme1737_data { struct i2c_client client; - struct class_device *class_dev; + struct device *hwmon_dev; struct mutex update_lock; int valid; /* !=0 if following fields are valid */ @@ -465,27 +476,48 @@ static inline int PWM_OFF_TO_REG(int val, int ix, int reg) /* --------------------------------------------------------------------- * Device I/O access + * + * ISA access is performed through an index/data register pair and needs to + * be protected by a mutex during runtime (not required for initialization). + * We use data->update_lock for this and need to ensure that we acquire it + * before calling dme1737_read or dme1737_write. * --------------------------------------------------------------------- */ static u8 dme1737_read(struct i2c_client *client, u8 reg) { - s32 val = i2c_smbus_read_byte_data(client, reg); + s32 val; + + if (client->driver) { /* I2C device */ + val = i2c_smbus_read_byte_data(client, reg); - if (val < 0) { - dev_warn(&client->dev, "Read from register 0x%02x failed! " - "Please report to the driver maintainer.\n", reg); + if (val < 0) { + dev_warn(&client->dev, "Read from register " + "0x%02x failed! Please report to the driver " + "maintainer.\n", reg); + } + } else { /* ISA device */ + outb(reg, client->addr); + val = inb(client->addr + 1); } return val; } -static s32 dme1737_write(struct i2c_client *client, u8 reg, u8 value) +static s32 dme1737_write(struct i2c_client *client, u8 reg, u8 val) { - s32 res = i2c_smbus_write_byte_data(client, reg, value); + s32 res = 0; + + if (client->driver) { /* I2C device */ + res = i2c_smbus_write_byte_data(client, reg, val); - if (res < 0) { - dev_warn(&client->dev, "Write to register 0x%02x failed! " - "Please report to the driver maintainer.\n", reg); + if (res < 0) { + dev_warn(&client->dev, "Write to register " + "0x%02x failed! Please report to the driver " + "maintainer.\n", reg); + } + } else { /* ISA device */ + outb(reg, client->addr); + outb(val, client->addr + 1); } return res; @@ -493,8 +525,8 @@ static s32 dme1737_write(struct i2c_client *client, u8 reg, u8 value) static struct dme1737_data *dme1737_update_device(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct dme1737_data *data = i2c_get_clientdata(client); + struct dme1737_data *data = dev_get_drvdata(dev); + struct i2c_client *client = &data->client; int ix; u8 lsb[5]; @@ -630,6 +662,24 @@ static struct dme1737_data *dme1737_update_device(struct device *dev) DME1737_REG_ALARM3) << 16; } + /* The ISA chips require explicit clearing of alarm bits. + * Don't worry, an alarm will come back if the condition + * that causes it still exists */ + if (!client->driver) { + if (data->alarms & 0xff0000) { + dme1737_write(client, DME1737_REG_ALARM3, + 0xff); + } + if (data->alarms & 0xff00) { + dme1737_write(client, DME1737_REG_ALARM2, + 0xff); + } + if (data->alarms & 0xff) { + dme1737_write(client, DME1737_REG_ALARM1, + 0xff); + } + } + data->last_update = jiffies; data->valid = 1; } @@ -674,7 +724,7 @@ static ssize_t show_in(struct device *dev, struct device_attribute *attr, break; default: res = 0; - dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); + dev_dbg(dev, "Unknown function %d.\n", fn); } return sprintf(buf, "%d\n", res); @@ -683,8 +733,8 @@ static ssize_t show_in(struct device *dev, struct device_attribute *attr, static ssize_t set_in(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct dme1737_data *data = i2c_get_clientdata(client); + struct dme1737_data *data = dev_get_drvdata(dev); + struct i2c_client *client = &data->client; struct sensor_device_attribute_2 *sensor_attr_2 = to_sensor_dev_attr_2(attr); int ix = sensor_attr_2->index; @@ -704,7 +754,7 @@ static ssize_t set_in(struct device *dev, struct device_attribute *attr, data->in_max[ix]); break; default: - dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); + dev_dbg(dev, "Unknown function %d.\n", fn); } mutex_unlock(&data->update_lock); @@ -754,7 +804,7 @@ static ssize_t show_temp(struct device *dev, struct device_attribute *attr, break; default: res = 0; - dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); + dev_dbg(dev, "Unknown function %d.\n", fn); } return sprintf(buf, "%d\n", res); @@ -763,8 +813,8 @@ static ssize_t show_temp(struct device *dev, struct device_attribute *attr, static ssize_t set_temp(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct dme1737_data *data = i2c_get_clientdata(client); + struct dme1737_data *data = dev_get_drvdata(dev); + struct i2c_client *client = &data->client; struct sensor_device_attribute_2 *sensor_attr_2 = to_sensor_dev_attr_2(attr); int ix = sensor_attr_2->index; @@ -789,7 +839,7 @@ static ssize_t set_temp(struct device *dev, struct device_attribute *attr, data->temp_offset[ix]); break; default: - dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); + dev_dbg(dev, "Unknown function %d.\n", fn); } mutex_unlock(&data->update_lock); @@ -843,7 +893,7 @@ static ssize_t show_zone(struct device *dev, struct device_attribute *attr, break; default: res = 0; - dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); + dev_dbg(dev, "Unknown function %d.\n", fn); } return sprintf(buf, "%d\n", res); @@ -852,8 +902,8 @@ static ssize_t show_zone(struct device *dev, struct device_attribute *attr, static ssize_t set_zone(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct dme1737_data *data = i2c_get_clientdata(client); + struct dme1737_data *data = dev_get_drvdata(dev); + struct i2c_client *client = &data->client; struct sensor_device_attribute_2 *sensor_attr_2 = to_sensor_dev_attr_2(attr); int ix = sensor_attr_2->index; @@ -898,7 +948,7 @@ static ssize_t set_zone(struct device *dev, struct device_attribute *attr, data->zone_abs[ix]); break; default: - dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); + dev_dbg(dev, "Unknown function %d.\n", fn); } mutex_unlock(&data->update_lock); @@ -950,7 +1000,7 @@ static ssize_t show_fan(struct device *dev, struct device_attribute *attr, break; default: res = 0; - dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); + dev_dbg(dev, "Unknown function %d.\n", fn); } return sprintf(buf, "%d\n", res); @@ -959,8 +1009,8 @@ static ssize_t show_fan(struct device *dev, struct device_attribute *attr, static ssize_t set_fan(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct dme1737_data *data = i2c_get_clientdata(client); + struct dme1737_data *data = dev_get_drvdata(dev); + struct i2c_client *client = &data->client; struct sensor_device_attribute_2 *sensor_attr_2 = to_sensor_dev_attr_2(attr); int ix = sensor_attr_2->index; @@ -995,7 +1045,7 @@ static ssize_t set_fan(struct device *dev, struct device_attribute *attr, /* Only valid for fan[1-4] */ if (!(val == 1 || val == 2 || val == 4)) { count = -EINVAL; - dev_warn(&client->dev, "Fan type value %ld not " + dev_warn(dev, "Fan type value %ld not " "supported. Choose one of 1, 2, or 4.\n", val); goto exit; @@ -1006,7 +1056,7 @@ static ssize_t set_fan(struct device *dev, struct device_attribute *attr, data->fan_opt[ix]); break; default: - dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); + dev_dbg(dev, "Unknown function %d.\n", fn); } exit: mutex_unlock(&data->update_lock); @@ -1086,20 +1136,20 @@ static ssize_t show_pwm(struct device *dev, struct device_attribute *attr, break; default: res = 0; - dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); + dev_dbg(dev, "Unknown function %d.\n", fn); } return sprintf(buf, "%d\n", res); } static struct attribute *dme1737_attr_pwm[]; -static void dme1737_chmod_file(struct i2c_client*, struct attribute*, mode_t); +static void dme1737_chmod_file(struct device*, struct attribute*, mode_t); static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct dme1737_data *data = i2c_get_clientdata(client); + struct dme1737_data *data = dev_get_drvdata(dev); + struct i2c_client *client = &data->client; struct sensor_device_attribute_2 *sensor_attr_2 = to_sensor_dev_attr_2(attr); int ix = sensor_attr_2->index; @@ -1122,7 +1172,7 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, /* Only valid for pwm[1-3] */ if (val < 0 || val > 2) { count = -EINVAL; - dev_warn(&client->dev, "PWM enable %ld not " + dev_warn(dev, "PWM enable %ld not " "supported. Choose one of 0, 1, or 2.\n", val); goto exit; @@ -1156,7 +1206,7 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, switch (val) { case 0: /* Change permissions of pwm[ix] to read-only */ - dme1737_chmod_file(client, dme1737_attr_pwm[ix], + dme1737_chmod_file(dev, dme1737_attr_pwm[ix], S_IRUGO); /* Turn fan fully on */ data->pwm_config[ix] = PWM_EN_TO_REG(0, @@ -1171,12 +1221,12 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, dme1737_write(client, DME1737_REG_PWM_CONFIG(ix), data->pwm_config[ix]); /* Change permissions of pwm[ix] to read-writeable */ - dme1737_chmod_file(client, dme1737_attr_pwm[ix], + dme1737_chmod_file(dev, dme1737_attr_pwm[ix], S_IRUGO | S_IWUSR); break; case 2: /* Change permissions of pwm[ix] to read-only */ - dme1737_chmod_file(client, dme1737_attr_pwm[ix], + dme1737_chmod_file(dev, dme1737_attr_pwm[ix], S_IRUGO); /* Turn on auto mode using the saved zone channel * assignment */ @@ -1223,7 +1273,7 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, if (!(val == 1 || val == 2 || val == 4 || val == 6 || val == 7)) { count = -EINVAL; - dev_warn(&client->dev, "PWM auto channels zone %ld " + dev_warn(dev, "PWM auto channels zone %ld " "not supported. Choose one of 1, 2, 4, 6, " "or 7.\n", val); goto exit; @@ -1257,12 +1307,10 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, data->pwm_rr[0] = PWM_OFF_TO_REG(1, ix, dme1737_read(client, DME1737_REG_PWM_RR(0))); - } else { data->pwm_rr[0] = PWM_OFF_TO_REG(0, ix, dme1737_read(client, DME1737_REG_PWM_RR(0))); - } dme1737_write(client, DME1737_REG_PWM_RR(0), data->pwm_rr[0]); @@ -1274,7 +1322,7 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, data->pwm_min[ix]); break; default: - dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); + dev_dbg(dev, "Unknown function %d.\n", fn); } exit: mutex_unlock(&data->update_lock); @@ -1298,8 +1346,7 @@ static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct dme1737_data *data = i2c_get_clientdata(client); + struct dme1737_data *data = dev_get_drvdata(dev); long val = simple_strtol(buf, NULL, 10); data->vrm = val; @@ -1314,6 +1361,14 @@ static ssize_t show_vid(struct device *dev, struct device_attribute *attr, return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm)); } +static ssize_t show_name(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct dme1737_data *data = dev_get_drvdata(dev); + + return sprintf(buf, "%s\n", data->client.name); +} + /* --------------------------------------------------------------------- * Sysfs device attribute defines and structs * --------------------------------------------------------------------- */ @@ -1322,13 +1377,13 @@ static ssize_t show_vid(struct device *dev, struct device_attribute *attr, #define SENSOR_DEVICE_ATTR_IN(ix) \ static SENSOR_DEVICE_ATTR_2(in##ix##_input, S_IRUGO, \ - show_in, NULL, SYS_IN_INPUT, ix); \ + show_in, NULL, SYS_IN_INPUT, ix); \ static SENSOR_DEVICE_ATTR_2(in##ix##_min, S_IRUGO | S_IWUSR, \ - show_in, set_in, SYS_IN_MIN, ix); \ + show_in, set_in, SYS_IN_MIN, ix); \ static SENSOR_DEVICE_ATTR_2(in##ix##_max, S_IRUGO | S_IWUSR, \ - show_in, set_in, SYS_IN_MAX, ix); \ + show_in, set_in, SYS_IN_MAX, ix); \ static SENSOR_DEVICE_ATTR_2(in##ix##_alarm, S_IRUGO, \ - show_in, NULL, SYS_IN_ALARM, ix) + show_in, NULL, SYS_IN_ALARM, ix) SENSOR_DEVICE_ATTR_IN(0); SENSOR_DEVICE_ATTR_IN(1); @@ -1342,17 +1397,17 @@ SENSOR_DEVICE_ATTR_IN(6); #define SENSOR_DEVICE_ATTR_TEMP(ix) \ static SENSOR_DEVICE_ATTR_2(temp##ix##_input, S_IRUGO, \ - show_temp, NULL, SYS_TEMP_INPUT, ix-1); \ + show_temp, NULL, SYS_TEMP_INPUT, ix-1); \ static SENSOR_DEVICE_ATTR_2(temp##ix##_min, S_IRUGO | S_IWUSR, \ - show_temp, set_temp, SYS_TEMP_MIN, ix-1); \ + show_temp, set_temp, SYS_TEMP_MIN, ix-1); \ static SENSOR_DEVICE_ATTR_2(temp##ix##_max, S_IRUGO | S_IWUSR, \ - show_temp, set_temp, SYS_TEMP_MAX, ix-1); \ + show_temp, set_temp, SYS_TEMP_MAX, ix-1); \ static SENSOR_DEVICE_ATTR_2(temp##ix##_offset, S_IRUGO, \ - show_temp, set_temp, SYS_TEMP_OFFSET, ix-1); \ + show_temp, set_temp, SYS_TEMP_OFFSET, ix-1); \ static SENSOR_DEVICE_ATTR_2(temp##ix##_alarm, S_IRUGO, \ - show_temp, NULL, SYS_TEMP_ALARM, ix-1); \ + show_temp, NULL, SYS_TEMP_ALARM, ix-1); \ static SENSOR_DEVICE_ATTR_2(temp##ix##_fault, S_IRUGO, \ - show_temp, NULL, SYS_TEMP_FAULT, ix-1) + show_temp, NULL, SYS_TEMP_FAULT, ix-1) SENSOR_DEVICE_ATTR_TEMP(1); SENSOR_DEVICE_ATTR_TEMP(2); @@ -1362,15 +1417,15 @@ SENSOR_DEVICE_ATTR_TEMP(3); #define SENSOR_DEVICE_ATTR_ZONE(ix) \ static SENSOR_DEVICE_ATTR_2(zone##ix##_auto_channels_temp, S_IRUGO, \ - show_zone, NULL, SYS_ZONE_AUTO_CHANNELS_TEMP, ix-1); \ + show_zone, NULL, SYS_ZONE_AUTO_CHANNELS_TEMP, ix-1); \ static SENSOR_DEVICE_ATTR_2(zone##ix##_auto_point1_temp_hyst, S_IRUGO, \ - show_zone, set_zone, SYS_ZONE_AUTO_POINT1_TEMP_HYST, ix-1); \ + show_zone, set_zone, SYS_ZONE_AUTO_POINT1_TEMP_HYST, ix-1); \ static SENSOR_DEVICE_ATTR_2(zone##ix##_auto_point1_temp, S_IRUGO, \ - show_zone, set_zone, SYS_ZONE_AUTO_POINT1_TEMP, ix-1); \ + show_zone, set_zone, SYS_ZONE_AUTO_POINT1_TEMP, ix-1); \ static SENSOR_DEVICE_ATTR_2(zone##ix##_auto_point2_temp, S_IRUGO, \ - show_zone, set_zone, SYS_ZONE_AUTO_POINT2_TEMP, ix-1); \ + show_zone, set_zone, SYS_ZONE_AUTO_POINT2_TEMP, ix-1); \ static SENSOR_DEVICE_ATTR_2(zone##ix##_auto_point3_temp, S_IRUGO, \ - show_zone, set_zone, SYS_ZONE_AUTO_POINT3_TEMP, ix-1) + show_zone, set_zone, SYS_ZONE_AUTO_POINT3_TEMP, ix-1) SENSOR_DEVICE_ATTR_ZONE(1); SENSOR_DEVICE_ATTR_ZONE(2); @@ -1380,13 +1435,13 @@ SENSOR_DEVICE_ATTR_ZONE(3); #define SENSOR_DEVICE_ATTR_FAN_1TO4(ix) \ static SENSOR_DEVICE_ATTR_2(fan##ix##_input, S_IRUGO, \ - show_fan, NULL, SYS_FAN_INPUT, ix-1); \ + show_fan, NULL, SYS_FAN_INPUT, ix-1); \ static SENSOR_DEVICE_ATTR_2(fan##ix##_min, S_IRUGO | S_IWUSR, \ - show_fan, set_fan, SYS_FAN_MIN, ix-1); \ + show_fan, set_fan, SYS_FAN_MIN, ix-1); \ static SENSOR_DEVICE_ATTR_2(fan##ix##_alarm, S_IRUGO, \ - show_fan, NULL, SYS_FAN_ALARM, ix-1); \ + show_fan, NULL, SYS_FAN_ALARM, ix-1); \ static SENSOR_DEVICE_ATTR_2(fan##ix##_type, S_IRUGO | S_IWUSR, \ - show_fan, set_fan, SYS_FAN_TYPE, ix-1) + show_fan, set_fan, SYS_FAN_TYPE, ix-1) SENSOR_DEVICE_ATTR_FAN_1TO4(1); SENSOR_DEVICE_ATTR_FAN_1TO4(2); @@ -1397,13 +1452,13 @@ SENSOR_DEVICE_ATTR_FAN_1TO4(4); #define SENSOR_DEVICE_ATTR_FAN_5TO6(ix) \ static SENSOR_DEVICE_ATTR_2(fan##ix##_input, S_IRUGO, \ - show_fan, NULL, SYS_FAN_INPUT, ix-1); \ + show_fan, NULL, SYS_FAN_INPUT, ix-1); \ static SENSOR_DEVICE_ATTR_2(fan##ix##_min, S_IRUGO | S_IWUSR, \ - show_fan, set_fan, SYS_FAN_MIN, ix-1); \ + show_fan, set_fan, SYS_FAN_MIN, ix-1); \ static SENSOR_DEVICE_ATTR_2(fan##ix##_alarm, S_IRUGO, \ - show_fan, NULL, SYS_FAN_ALARM, ix-1); \ + show_fan, NULL, SYS_FAN_ALARM, ix-1); \ static SENSOR_DEVICE_ATTR_2(fan##ix##_max, S_IRUGO | S_IWUSR, \ - show_fan, set_fan, SYS_FAN_MAX, ix-1) + show_fan, set_fan, SYS_FAN_MAX, ix-1) SENSOR_DEVICE_ATTR_FAN_5TO6(5); SENSOR_DEVICE_ATTR_FAN_5TO6(6); @@ -1412,21 +1467,21 @@ SENSOR_DEVICE_ATTR_FAN_5TO6(6); #define SENSOR_DEVICE_ATTR_PWM_1TO3(ix) \ static SENSOR_DEVICE_ATTR_2(pwm##ix, S_IRUGO, \ - show_pwm, set_pwm, SYS_PWM, ix-1); \ + show_pwm, set_pwm, SYS_PWM, ix-1); \ static SENSOR_DEVICE_ATTR_2(pwm##ix##_freq, S_IRUGO, \ - show_pwm, set_pwm, SYS_PWM_FREQ, ix-1); \ + show_pwm, set_pwm, SYS_PWM_FREQ, ix-1); \ static SENSOR_DEVICE_ATTR_2(pwm##ix##_enable, S_IRUGO, \ - show_pwm, set_pwm, SYS_PWM_ENABLE, ix-1); \ + show_pwm, set_pwm, SYS_PWM_ENABLE, ix-1); \ static SENSOR_DEVICE_ATTR_2(pwm##ix##_ramp_rate, S_IRUGO, \ - show_pwm, set_pwm, SYS_PWM_RAMP_RATE, ix-1); \ + show_pwm, set_pwm, SYS_PWM_RAMP_RATE, ix-1); \ static SENSOR_DEVICE_ATTR_2(pwm##ix##_auto_channels_zone, S_IRUGO, \ - show_pwm, set_pwm, SYS_PWM_AUTO_CHANNELS_ZONE, ix-1); \ + show_pwm, set_pwm, SYS_PWM_AUTO_CHANNELS_ZONE, ix-1); \ static SENSOR_DEVICE_ATTR_2(pwm##ix##_auto_pwm_min, S_IRUGO, \ - show_pwm, set_pwm, SYS_PWM_AUTO_PWM_MIN, ix-1); \ + show_pwm, set_pwm, SYS_PWM_AUTO_PWM_MIN, ix-1); \ static SENSOR_DEVICE_ATTR_2(pwm##ix##_auto_point1_pwm, S_IRUGO, \ - show_pwm, set_pwm, SYS_PWM_AUTO_POINT1_PWM, ix-1); \ + show_pwm, set_pwm, SYS_PWM_AUTO_POINT1_PWM, ix-1); \ static SENSOR_DEVICE_ATTR_2(pwm##ix##_auto_point2_pwm, S_IRUGO, \ - show_pwm, NULL, SYS_PWM_AUTO_POINT2_PWM, ix-1) + show_pwm, NULL, SYS_PWM_AUTO_POINT2_PWM, ix-1) SENSOR_DEVICE_ATTR_PWM_1TO3(1); SENSOR_DEVICE_ATTR_PWM_1TO3(2); @@ -1436,11 +1491,11 @@ SENSOR_DEVICE_ATTR_PWM_1TO3(3); #define SENSOR_DEVICE_ATTR_PWM_5TO6(ix) \ static SENSOR_DEVICE_ATTR_2(pwm##ix, S_IRUGO | S_IWUSR, \ - show_pwm, set_pwm, SYS_PWM, ix-1); \ + show_pwm, set_pwm, SYS_PWM, ix-1); \ static SENSOR_DEVICE_ATTR_2(pwm##ix##_freq, S_IRUGO | S_IWUSR, \ - show_pwm, set_pwm, SYS_PWM_FREQ, ix-1); \ + show_pwm, set_pwm, SYS_PWM_FREQ, ix-1); \ static SENSOR_DEVICE_ATTR_2(pwm##ix##_enable, S_IRUGO, \ - show_pwm, NULL, SYS_PWM_ENABLE, ix-1) + show_pwm, NULL, SYS_PWM_ENABLE, ix-1) SENSOR_DEVICE_ATTR_PWM_5TO6(5); SENSOR_DEVICE_ATTR_PWM_5TO6(6); @@ -1449,6 +1504,7 @@ SENSOR_DEVICE_ATTR_PWM_5TO6(6); static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm); static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL); +static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); /* for ISA devices */ #define SENSOR_DEV_ATTR_IN(ix) \ &sensor_dev_attr_in##ix##_input.dev_attr.attr, \ @@ -1519,53 +1575,53 @@ SENSOR_DEV_ATTR_PWM_5TO6_LOCK(ix), \ * permissions are created read-only and write permissions are added or removed * on the fly when required */ static struct attribute *dme1737_attr[] ={ - /* Voltages */ - SENSOR_DEV_ATTR_IN(0), - SENSOR_DEV_ATTR_IN(1), - SENSOR_DEV_ATTR_IN(2), - SENSOR_DEV_ATTR_IN(3), - SENSOR_DEV_ATTR_IN(4), - SENSOR_DEV_ATTR_IN(5), - SENSOR_DEV_ATTR_IN(6), - /* Temperatures */ - SENSOR_DEV_ATTR_TEMP(1), - SENSOR_DEV_ATTR_TEMP(2), - SENSOR_DEV_ATTR_TEMP(3), - /* Zones */ - SENSOR_DEV_ATTR_ZONE(1), - SENSOR_DEV_ATTR_ZONE(2), - SENSOR_DEV_ATTR_ZONE(3), - /* Misc */ - &dev_attr_vrm.attr, - &dev_attr_cpu0_vid.attr, + /* Voltages */ + SENSOR_DEV_ATTR_IN(0), + SENSOR_DEV_ATTR_IN(1), + SENSOR_DEV_ATTR_IN(2), + SENSOR_DEV_ATTR_IN(3), + SENSOR_DEV_ATTR_IN(4), + SENSOR_DEV_ATTR_IN(5), + SENSOR_DEV_ATTR_IN(6), + /* Temperatures */ + SENSOR_DEV_ATTR_TEMP(1), + SENSOR_DEV_ATTR_TEMP(2), + SENSOR_DEV_ATTR_TEMP(3), + /* Zones */ + SENSOR_DEV_ATTR_ZONE(1), + SENSOR_DEV_ATTR_ZONE(2), + SENSOR_DEV_ATTR_ZONE(3), + /* Misc */ + &dev_attr_vrm.attr, + &dev_attr_cpu0_vid.attr, NULL }; static const struct attribute_group dme1737_group = { - .attrs = dme1737_attr, + .attrs = dme1737_attr, }; /* The following structs hold the PWM attributes, some of which are optional. * Their creation depends on the chip configuration which is determined during * module load. */ static struct attribute *dme1737_attr_pwm1[] = { - SENSOR_DEV_ATTR_PWM_1TO3(1), + SENSOR_DEV_ATTR_PWM_1TO3(1), NULL }; static struct attribute *dme1737_attr_pwm2[] = { - SENSOR_DEV_ATTR_PWM_1TO3(2), + SENSOR_DEV_ATTR_PWM_1TO3(2), NULL }; static struct attribute *dme1737_attr_pwm3[] = { - SENSOR_DEV_ATTR_PWM_1TO3(3), + SENSOR_DEV_ATTR_PWM_1TO3(3), NULL }; static struct attribute *dme1737_attr_pwm5[] = { - SENSOR_DEV_ATTR_PWM_5TO6(5), + SENSOR_DEV_ATTR_PWM_5TO6(5), NULL }; static struct attribute *dme1737_attr_pwm6[] = { - SENSOR_DEV_ATTR_PWM_5TO6(6), + SENSOR_DEV_ATTR_PWM_5TO6(6), NULL }; @@ -1582,27 +1638,27 @@ static const struct attribute_group dme1737_pwm_group[] = { * Their creation depends on the chip configuration which is determined during * module load. */ static struct attribute *dme1737_attr_fan1[] = { - SENSOR_DEV_ATTR_FAN_1TO4(1), + SENSOR_DEV_ATTR_FAN_1TO4(1), NULL }; static struct attribute *dme1737_attr_fan2[] = { - SENSOR_DEV_ATTR_FAN_1TO4(2), + SENSOR_DEV_ATTR_FAN_1TO4(2), NULL }; static struct attribute *dme1737_attr_fan3[] = { - SENSOR_DEV_ATTR_FAN_1TO4(3), + SENSOR_DEV_ATTR_FAN_1TO4(3), NULL }; static struct attribute *dme1737_attr_fan4[] = { - SENSOR_DEV_ATTR_FAN_1TO4(4), + SENSOR_DEV_ATTR_FAN_1TO4(4), NULL }; static struct attribute *dme1737_attr_fan5[] = { - SENSOR_DEV_ATTR_FAN_5TO6(5), + SENSOR_DEV_ATTR_FAN_5TO6(5), NULL }; static struct attribute *dme1737_attr_fan6[] = { - SENSOR_DEV_ATTR_FAN_5TO6(6), + SENSOR_DEV_ATTR_FAN_5TO6(6), NULL }; @@ -1637,23 +1693,23 @@ static const struct attribute_group dme1737_lock_group = { * writeable if the chip is *not* locked and the respective PWM is available. * Otherwise they stay read-only. */ static struct attribute *dme1737_attr_pwm1_lock[] = { - SENSOR_DEV_ATTR_PWM_1TO3_LOCK(1), + SENSOR_DEV_ATTR_PWM_1TO3_LOCK(1), NULL }; static struct attribute *dme1737_attr_pwm2_lock[] = { - SENSOR_DEV_ATTR_PWM_1TO3_LOCK(2), + SENSOR_DEV_ATTR_PWM_1TO3_LOCK(2), NULL }; static struct attribute *dme1737_attr_pwm3_lock[] = { - SENSOR_DEV_ATTR_PWM_1TO3_LOCK(3), + SENSOR_DEV_ATTR_PWM_1TO3_LOCK(3), NULL }; static struct attribute *dme1737_attr_pwm5_lock[] = { - SENSOR_DEV_ATTR_PWM_5TO6_LOCK(5), + SENSOR_DEV_ATTR_PWM_5TO6_LOCK(5), NULL }; static struct attribute *dme1737_attr_pwm6_lock[] = { - SENSOR_DEV_ATTR_PWM_5TO6_LOCK(6), + SENSOR_DEV_ATTR_PWM_5TO6_LOCK(6), NULL }; @@ -1678,6 +1734,16 @@ static struct attribute *dme1737_attr_pwm[] = { * Super-IO functions * --------------------------------------------------------------------- */ +static inline void dme1737_sio_enter(int sio_cip) +{ + outb(0x55, sio_cip); +} + +static inline void dme1737_sio_exit(int sio_cip) +{ + outb(0xaa, sio_cip); +} + static inline int dme1737_sio_inb(int sio_cip, int reg) { outb(reg, sio_cip); @@ -1690,136 +1756,196 @@ static inline void dme1737_sio_outb(int sio_cip, int reg, int val) outb(val, sio_cip + 1); } -static int dme1737_sio_get_features(int sio_cip, struct i2c_client *client) +/* --------------------------------------------------------------------- + * Device initialization + * --------------------------------------------------------------------- */ + +static int dme1737_i2c_get_features(int, struct dme1737_data*); + +static void dme1737_chmod_file(struct device *dev, + struct attribute *attr, mode_t mode) { - struct dme1737_data *data = i2c_get_clientdata(client); - int err = 0, reg; - u16 addr; + if (sysfs_chmod_file(&dev->kobj, attr, mode)) { + dev_warn(dev, "Failed to change permissions of %s.\n", + attr->name); + } +} - /* Enter configuration mode */ - outb(0x55, sio_cip); +static void dme1737_chmod_group(struct device *dev, + const struct attribute_group *group, + mode_t mode) +{ + struct attribute **attr; - /* Check device ID - * The DME1737 can return either 0x78 or 0x77 as its device ID. */ - reg = dme1737_sio_inb(sio_cip, 0x20); - if (!(reg == 0x77 || reg == 0x78)) { - err = -ENODEV; - goto exit; + for (attr = group->attrs; *attr; attr++) { + dme1737_chmod_file(dev, *attr, mode); } +} - /* Select logical device A (runtime registers) */ - dme1737_sio_outb(sio_cip, 0x07, 0x0a); +static void dme1737_remove_files(struct device *dev) +{ + struct dme1737_data *data = dev_get_drvdata(dev); + int ix; - /* Get the base address of the runtime registers */ - if (!(addr = (dme1737_sio_inb(sio_cip, 0x60) << 8) | - dme1737_sio_inb(sio_cip, 0x61))) { - err = -ENODEV; - goto exit; + for (ix = 0; ix < ARRAY_SIZE(dme1737_fan_group); ix++) { + if (data->has_fan & (1 << ix)) { + sysfs_remove_group(&dev->kobj, + &dme1737_fan_group[ix]); + } } - /* Read the runtime registers to determine which optional features - * are enabled and available. Bits [3:2] of registers 0x43-0x46 are set - * to '10' if the respective feature is enabled. */ - if ((inb(addr + 0x43) & 0x0c) == 0x08) { /* fan6 */ - data->has_fan |= (1 << 5); + for (ix = 0; ix < ARRAY_SIZE(dme1737_pwm_group); ix++) { + if (data->has_pwm & (1 << ix)) { + sysfs_remove_group(&dev->kobj, + &dme1737_pwm_group[ix]); + } } - if ((inb(addr + 0x44) & 0x0c) == 0x08) { /* pwm6 */ - data->has_pwm |= (1 << 5); + + sysfs_remove_group(&dev->kobj, &dme1737_group); + + if (!data->client.driver) { + sysfs_remove_file(&dev->kobj, &dev_attr_name.attr); } - if ((inb(addr + 0x45) & 0x0c) == 0x08) { /* fan5 */ - data->has_fan |= (1 << 4); +} + +static int dme1737_create_files(struct device *dev) +{ + struct dme1737_data *data = dev_get_drvdata(dev); + int err, ix; + + /* Create a name attribute for ISA devices */ + if (!data->client.driver && + (err = sysfs_create_file(&dev->kobj, &dev_attr_name.attr))) { + goto exit; } - if ((inb(addr + 0x46) & 0x0c) == 0x08) { /* pwm5 */ - data->has_pwm |= (1 << 4); + + /* Create standard sysfs attributes */ + if ((err = sysfs_create_group(&dev->kobj, &dme1737_group))) { + goto exit_remove; } -exit: - /* Exit configuration mode */ - outb(0xaa, sio_cip); + /* Create fan sysfs attributes */ + for (ix = 0; ix < ARRAY_SIZE(dme1737_fan_group); ix++) { + if (data->has_fan & (1 << ix)) { + if ((err = sysfs_create_group(&dev->kobj, + &dme1737_fan_group[ix]))) { + goto exit_remove; + } + } + } - return err; -} + /* Create PWM sysfs attributes */ + for (ix = 0; ix < ARRAY_SIZE(dme1737_pwm_group); ix++) { + if (data->has_pwm & (1 << ix)) { + if ((err = sysfs_create_group(&dev->kobj, + &dme1737_pwm_group[ix]))) { + goto exit_remove; + } + } + } -/* --------------------------------------------------------------------- - * Device detection, registration and initialization - * --------------------------------------------------------------------- */ + /* Inform if the device is locked. Otherwise change the permissions of + * selected attributes from read-only to read-writeable. */ + if (data->config & 0x02) { + dev_info(dev, "Device is locked. Some attributes " + "will be read-only.\n"); + } else { + /* Change permissions of standard attributes */ + dme1737_chmod_group(dev, &dme1737_lock_group, + S_IRUGO | S_IWUSR); -static struct i2c_driver dme1737_driver; + /* Change permissions of PWM attributes */ + for (ix = 0; ix < ARRAY_SIZE(dme1737_pwm_lock_group); ix++) { + if (data->has_pwm & (1 << ix)) { + dme1737_chmod_group(dev, + &dme1737_pwm_lock_group[ix], + S_IRUGO | S_IWUSR); + } + } -static void dme1737_chmod_file(struct i2c_client *client, - struct attribute *attr, mode_t mode) -{ - if (sysfs_chmod_file(&client->dev.kobj, attr, mode)) { - dev_warn(&client->dev, "Failed to change permissions of %s.\n", - attr->name); + /* Change permissions of pwm[1-3] if in manual mode */ + for (ix = 0; ix < 3; ix++) { + if ((data->has_pwm & (1 << ix)) && + (PWM_EN_FROM_REG(data->pwm_config[ix]) == 1)) { + dme1737_chmod_file(dev, + dme1737_attr_pwm[ix], + S_IRUGO | S_IWUSR); + } + } } -} -static void dme1737_chmod_group(struct i2c_client *client, - const struct attribute_group *group, - mode_t mode) -{ - struct attribute **attr; + return 0; - for (attr = group->attrs; *attr; attr++) { - dme1737_chmod_file(client, *attr, mode); - } +exit_remove: + dme1737_remove_files(dev); +exit: + return err; } -static int dme1737_init_client(struct i2c_client *client) +static int dme1737_init_device(struct device *dev) { - struct dme1737_data *data = i2c_get_clientdata(client); + struct dme1737_data *data = dev_get_drvdata(dev); + struct i2c_client *client = &data->client; int ix; u8 reg; - data->config = dme1737_read(client, DME1737_REG_CONFIG); - /* Inform if part is not monitoring/started */ - if (!(data->config & 0x01)) { - if (!force_start) { - dev_err(&client->dev, "Device is not monitoring. " - "Use the force_start load parameter to " - "override.\n"); - return -EFAULT; - } - - /* Force monitoring */ - data->config |= 0x01; - dme1737_write(client, DME1737_REG_CONFIG, data->config); - } + data->config = dme1737_read(client, DME1737_REG_CONFIG); + /* Inform if part is not monitoring/started */ + if (!(data->config & 0x01)) { + if (!force_start) { + dev_err(dev, "Device is not monitoring. " + "Use the force_start load parameter to " + "override.\n"); + return -EFAULT; + } + + /* Force monitoring */ + data->config |= 0x01; + dme1737_write(client, DME1737_REG_CONFIG, data->config); + } /* Inform if part is not ready */ if (!(data->config & 0x04)) { - dev_err(&client->dev, "Device is not ready.\n"); + dev_err(dev, "Device is not ready.\n"); return -EFAULT; } - data->config2 = dme1737_read(client, DME1737_REG_CONFIG2); - /* Check if optional fan3 input is enabled */ - if (data->config2 & 0x04) { - data->has_fan |= (1 << 2); - } + /* Determine which optional fan and pwm features are enabled/present */ + if (client->driver) { /* I2C chip */ + data->config2 = dme1737_read(client, DME1737_REG_CONFIG2); + /* Check if optional fan3 input is enabled */ + if (data->config2 & 0x04) { + data->has_fan |= (1 << 2); + } - /* Fan4 and pwm3 are only available if the client's I2C address - * is the default 0x2e. Otherwise the I/Os associated with these - * functions are used for addr enable/select. */ - if (client->addr == 0x2e) { - data->has_fan |= (1 << 3); - data->has_pwm |= (1 << 2); - } + /* Fan4 and pwm3 are only available if the client's I2C address + * is the default 0x2e. Otherwise the I/Os associated with + * these functions are used for addr enable/select. */ + if (data->client.addr == 0x2e) { + data->has_fan |= (1 << 3); + data->has_pwm |= (1 << 2); + } - /* Determine if the optional fan[5-6] and/or pwm[5-6] are enabled. - * For this, we need to query the runtime registers through the - * Super-IO LPC interface. Try both config ports 0x2e and 0x4e. */ - if (dme1737_sio_get_features(0x2e, client) && - dme1737_sio_get_features(0x4e, client)) { - dev_warn(&client->dev, "Failed to query Super-IO for optional " - "features.\n"); + /* Determine which of the optional fan[5-6] and pwm[5-6] + * features are enabled. For this, we need to query the runtime + * registers through the Super-IO LPC interface. Try both + * config ports 0x2e and 0x4e. */ + if (dme1737_i2c_get_features(0x2e, data) && + dme1737_i2c_get_features(0x4e, data)) { + dev_warn(dev, "Failed to query Super-IO for optional " + "features.\n"); + } + } else { /* ISA chip */ + /* Fan3 and pwm3 are always available. Fan[4-5] and pwm[5-6] + * don't exist in the ISA chip. */ + data->has_fan |= (1 << 2); + data->has_pwm |= (1 << 2); } /* Fan1, fan2, pwm1, and pwm2 are always present */ data->has_fan |= 0x03; data->has_pwm |= 0x03; - dev_info(&client->dev, "Optional features: pwm3=%s, pwm5=%s, pwm6=%s, " + dev_info(dev, "Optional features: pwm3=%s, pwm5=%s, pwm6=%s, " "fan3=%s, fan4=%s, fan5=%s, fan6=%s.\n", (data->has_pwm & (1 << 2)) ? "yes" : "no", (data->has_pwm & (1 << 4)) ? "yes" : "no", @@ -1831,13 +1957,19 @@ static int dme1737_init_client(struct i2c_client *client) reg = dme1737_read(client, DME1737_REG_TACH_PWM); /* Inform if fan-to-pwm mapping differs from the default */ - if (reg != 0xa4) { - dev_warn(&client->dev, "Non-standard fan to pwm mapping: " + if (client->driver && reg != 0xa4) { /* I2C chip */ + dev_warn(dev, "Non-standard fan to pwm mapping: " "fan1->pwm%d, fan2->pwm%d, fan3->pwm%d, " "fan4->pwm%d. Please re |