diff options
Diffstat (limited to 'drivers/hwmon/gl518sm.c')
| -rw-r--r-- | drivers/hwmon/gl518sm.c | 269 |
1 files changed, 181 insertions, 88 deletions
diff --git a/drivers/hwmon/gl518sm.c b/drivers/hwmon/gl518sm.c index bb58d9866a37..3b1ac48fce23 100644 --- a/drivers/hwmon/gl518sm.c +++ b/drivers/hwmon/gl518sm.c @@ -30,10 +30,6 @@ * We did not keep that part of the original driver in the Linux 2.6 * version, since it was making the driver significantly more complex * with no real benefit. - * - * History: - * 2004-01-28 Original port. (Hong-Gunn Chew) - * 2004-01-31 Code review and approval. (Jean Delvare) */ #include <linux/module.h> @@ -42,6 +38,7 @@ #include <linux/jiffies.h> #include <linux/i2c.h> #include <linux/hwmon.h> +#include <linux/hwmon-sysfs.h> #include <linux/err.h> #include <linux/mutex.h> #include <linux/sysfs.h> @@ -99,10 +96,10 @@ static inline u8 FAN_TO_REG(long rpm, int div) long rpmdiv; if (rpm == 0) return 0; - rpmdiv = SENSORS_LIMIT(rpm, 1, 1920000) * div; - return SENSORS_LIMIT((960000 + rpmdiv / 2) / rpmdiv, 1, 255); + rpmdiv = SENSORS_LIMIT(rpm, 1, 960000) * div; + return SENSORS_LIMIT((480000 + rpmdiv / 2) / rpmdiv, 1, 255); } -#define FAN_FROM_REG(val,div) ((val)==0 ? 0 : (960000/((val)*(div)))) +#define FAN_FROM_REG(val,div) ((val)==0 ? 0 : (480000/((val)*(div)))) #define IN_TO_REG(val) (SENSORS_LIMIT((((val)+9)/19),0,255)) #define IN_FROM_REG(val) ((val)*19) @@ -110,7 +107,6 @@ static inline u8 FAN_TO_REG(long rpm, int div) #define VDD_TO_REG(val) (SENSORS_LIMIT((((val)*4+47)/95),0,255)) #define VDD_FROM_REG(val) (((val)*95+2)/4) -#define DIV_TO_REG(val) ((val)==4?2:(val)==2?1:(val)==1?0:3) #define DIV_FROM_REG(val) (1 << (val)) #define BEEP_MASK_TO_REG(val) ((val) & 0x7f & data->alarm_mask) @@ -129,7 +125,6 @@ struct gl518_data { u8 voltage_in[4]; /* Register values; [0] = VDD */ u8 voltage_min[4]; /* Register values; [0] = VDD */ u8 voltage_max[4]; /* Register values; [0] = VDD */ - u8 iter_voltage_in[4]; /* Register values; [0] = VDD */ u8 fan_in[2]; u8 fan_min[2]; u8 fan_div[2]; /* Register encoding, shifted right */ @@ -138,7 +133,7 @@ struct gl518_data { u8 temp_max; /* Register values */ u8 temp_hyst; /* Register values */ u8 alarms; /* Register value */ - u8 alarm_mask; /* Register value */ + u8 alarm_mask; u8 beep_mask; /* Register value */ u8 beep_enable; /* Boolean */ }; @@ -156,7 +151,6 @@ static struct i2c_driver gl518_driver = { .driver = { .name = "gl518sm", }, - .id = I2C_DRIVERID_GL518, .attach_adapter = gl518_attach_adapter, .detach_client = gl518_detach_client, }; @@ -172,24 +166,10 @@ static ssize_t show_##suffix(struct device *dev, struct device_attribute *attr, return sprintf(buf, "%d\n", type##_FROM_REG(data->value)); \ } -#define show_fan(suffix, value, index) \ -static ssize_t show_##suffix(struct device *dev, struct device_attribute *attr, char *buf) \ -{ \ - struct gl518_data *data = gl518_update_device(dev); \ - return sprintf(buf, "%d\n", FAN_FROM_REG(data->value[index], \ - DIV_FROM_REG(data->fan_div[index]))); \ -} - show(TEMP, temp_input1, temp_in); show(TEMP, temp_max1, temp_max); show(TEMP, temp_hyst1, temp_hyst); show(BOOL, fan_auto1, fan_auto1); -show_fan(fan_input1, fan_in, 0); -show_fan(fan_input2, fan_in, 1); -show_fan(fan_min1, fan_min, 0); -show_fan(fan_min2, fan_min, 1); -show(DIV, fan_div1, fan_div[0]); -show(DIV, fan_div2, fan_div[1]); show(VDD, in_input0, voltage_in[0]); show(IN, in_input1, voltage_in[1]); show(IN, in_input2, voltage_in[2]); @@ -206,6 +186,32 @@ show(RAW, alarms, alarms); show(BOOL, beep_enable, beep_enable); show(BEEP_MASK, beep_mask, beep_mask); +static ssize_t show_fan_input(struct device *dev, + struct device_attribute *attr, char *buf) +{ + int nr = to_sensor_dev_attr(attr)->index; + struct gl518_data *data = gl518_update_device(dev); + return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_in[nr], + DIV_FROM_REG(data->fan_div[nr]))); +} + +static ssize_t show_fan_min(struct device *dev, + struct device_attribute *attr, char *buf) +{ + int nr = to_sensor_dev_attr(attr)->index; + struct gl518_data *data = gl518_update_device(dev); + 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) +{ + int nr = to_sensor_dev_attr(attr)->index; + struct gl518_data *data = gl518_update_device(dev); + return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr])); +} + #define set(type, suffix, value, reg) \ static ssize_t set_##suffix(struct device *dev, struct device_attribute *attr, const char *buf, \ size_t count) \ @@ -247,8 +253,6 @@ static ssize_t set_##suffix(struct device *dev, struct device_attribute *attr, c set(TEMP, temp_max1, temp_max, GL518_REG_TEMP_MAX); set(TEMP, temp_hyst1, temp_hyst, GL518_REG_TEMP_HYST); set_bits(BOOL, fan_auto1, fan_auto1, GL518_REG_MISC, 0x08, 3); -set_bits(DIV, fan_div1, fan_div[0], GL518_REG_MISC, 0xc0, 6); -set_bits(DIV, fan_div2, fan_div[1], GL518_REG_MISC, 0x30, 4); set_low(VDD, in_min0, voltage_min[0], GL518_REG_VDD_LIMIT); set_low(IN, in_min1, voltage_min[1], GL518_REG_VIN1_LIMIT); set_low(IN, in_min2, voltage_min[2], GL518_REG_VIN2_LIMIT); @@ -260,25 +264,27 @@ set_high(IN, in_max3, voltage_max[3], GL518_REG_VIN3_LIMIT); set_bits(BOOL, beep_enable, beep_enable, GL518_REG_CONF, 0x04, 2); set(BEEP_MASK, beep_mask, beep_mask, GL518_REG_ALARM); -static ssize_t set_fan_min1(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { struct i2c_client *client = to_i2c_client(dev); struct gl518_data *data = i2c_get_clientdata(client); + int nr = to_sensor_dev_attr(attr)->index; int regvalue; unsigned long val = simple_strtoul(buf, NULL, 10); mutex_lock(&data->update_lock); regvalue = gl518_read_value(client, GL518_REG_FAN_LIMIT); - data->fan_min[0] = FAN_TO_REG(val, - DIV_FROM_REG(data->fan_div[0])); - regvalue = (regvalue & 0x00ff) | (data->fan_min[0] << 8); + data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); + regvalue = (regvalue & (0xff << (8 * nr))) + | (data->fan_min[nr] << (8 * (1 - nr))); gl518_write_value(client, GL518_REG_FAN_LIMIT, regvalue); data->beep_mask = gl518_read_value(client, GL518_REG_ALARM); - if (data->fan_min[0] == 0) - data->alarm_mask &= ~0x20; + if (data->fan_min[nr] == 0) + data->alarm_mask &= ~(0x20 << nr); else - data->alarm_mask |= 0x20; + data->alarm_mask |= (0x20 << nr); data->beep_mask &= data->alarm_mask; gl518_write_value(client, GL518_REG_ALARM, data->beep_mask); @@ -286,28 +292,32 @@ static ssize_t set_fan_min1(struct device *dev, struct device_attribute *attr, c return count; } -static ssize_t set_fan_min2(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { struct i2c_client *client = to_i2c_client(dev); struct gl518_data *data = i2c_get_clientdata(client); + int nr = to_sensor_dev_attr(attr)->index; int regvalue; unsigned long val = simple_strtoul(buf, NULL, 10); - mutex_lock(&data->update_lock); - regvalue = gl518_read_value(client, GL518_REG_FAN_LIMIT); - data->fan_min[1] = FAN_TO_REG(val, - DIV_FROM_REG(data->fan_div[1])); - regvalue = (regvalue & 0xff00) | data->fan_min[1]; - gl518_write_value(client, GL518_REG_FAN_LIMIT, regvalue); - - data->beep_mask = gl518_read_value(client, GL518_REG_ALARM); - if (data->fan_min[1] == 0) - data->alarm_mask &= ~0x40; - else - data->alarm_mask |= 0x40; - data->beep_mask &= data->alarm_mask; - gl518_write_value(client, GL518_REG_ALARM, data->beep_mask); + switch (val) { + case 1: val = 0; break; + case 2: val = 1; break; + case 4: val = 2; break; + case 8: val = 3; break; + default: + dev_err(dev, "Invalid fan clock divider %lu, choose one " + "of 1, 2, 4 or 8\n", val); + return -EINVAL; + } + mutex_lock(&data->update_lock); + regvalue = gl518_read_value(client, GL518_REG_MISC); + data->fan_div[nr] = val; + regvalue = (regvalue & ~(0xc0 >> (2 * nr))) + | (data->fan_div[nr] << (6 - 2 * nr)); + gl518_write_value(client, GL518_REG_MISC, regvalue); mutex_unlock(&data->update_lock); return count; } @@ -317,12 +327,16 @@ static DEVICE_ATTR(temp1_max, S_IWUSR|S_IRUGO, show_temp_max1, set_temp_max1); static DEVICE_ATTR(temp1_max_hyst, S_IWUSR|S_IRUGO, show_temp_hyst1, set_temp_hyst1); static DEVICE_ATTR(fan1_auto, S_IWUSR|S_IRUGO, show_fan_auto1, set_fan_auto1); -static DEVICE_ATTR(fan1_input, S_IRUGO, show_fan_input1, NULL); -static DEVICE_ATTR(fan2_input, S_IRUGO, show_fan_input2, NULL); -static DEVICE_ATTR(fan1_min, S_IWUSR|S_IRUGO, show_fan_min1, set_fan_min1); -static DEVICE_ATTR(fan2_min, S_IWUSR|S_IRUGO, show_fan_min2, set_fan_min2); -static DEVICE_ATTR(fan1_div, S_IWUSR|S_IRUGO, show_fan_div1, set_fan_div1); -static DEVICE_ATTR(fan2_div, S_IWUSR|S_IRUGO, show_fan_div2, set_fan_div2); +static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan_input, NULL, 0); +static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan_input, NULL, 1); +static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR|S_IRUGO, + show_fan_min, set_fan_min, 0); +static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR|S_IRUGO, + show_fan_min, set_fan_min, 1); +static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR|S_IRUGO, + show_fan_div, set_fan_div, 0); +static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR|S_IRUGO, + show_fan_div, set_fan_div, 1); static DEVICE_ATTR(in0_input, S_IRUGO, show_in_input0, NULL); static DEVICE_ATTR(in1_input, S_IRUGO, show_in_input1, NULL); static DEVICE_ATTR(in2_input, S_IRUGO, show_in_input2, NULL); @@ -341,10 +355,62 @@ static DEVICE_ATTR(beep_enable, S_IWUSR|S_IRUGO, static DEVICE_ATTR(beep_mask, S_IWUSR|S_IRUGO, show_beep_mask, set_beep_mask); +static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, + char *buf) +{ + int bitnr = to_sensor_dev_attr(attr)->index; + struct gl518_data *data = gl518_update_device(dev); + return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 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(temp1_alarm, S_IRUGO, show_alarm, NULL, 4); +static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 5); +static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 6); + +static ssize_t show_beep(struct device *dev, struct device_attribute *attr, + char *buf) +{ + int bitnr = to_sensor_dev_attr(attr)->index; + struct gl518_data *data = gl518_update_device(dev); + return sprintf(buf, "%u\n", (data->beep_mask >> bitnr) & 1); +} + +static ssize_t set_beep(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct i2c_client *client = to_i2c_client(dev); + struct gl518_data *data = i2c_get_clientdata(client); + int bitnr = to_sensor_dev_attr(attr)->index; + unsigned long bit; + + bit = simple_strtoul(buf, NULL, 10); + if (bit & ~1) + return -EINVAL; + + mutex_lock(&data->update_lock); + data->beep_mask = gl518_read_value(client, GL518_REG_ALARM); + if (bit) + data->beep_mask |= (1 << bitnr); + else + data->beep_mask &= ~(1 << bitnr); + gl518_write_value(client, GL518_REG_ALARM, data->beep_mask); + mutex_unlock(&data->update_lock); + return count; +} + +static SENSOR_DEVICE_ATTR(in0_beep, S_IRUGO|S_IWUSR, show_beep, set_beep, 0); +static SENSOR_DEVICE_ATTR(in1_beep, S_IRUGO|S_IWUSR, show_beep, set_beep, 1); +static SENSOR_DEVICE_ATTR(in2_beep, S_IRUGO|S_IWUSR, show_beep, set_beep, 2); +static SENSOR_DEVICE_ATTR(in3_beep, S_IRUGO|S_IWUSR, show_beep, set_beep, 3); +static SENSOR_DEVICE_ATTR(temp1_beep, S_IRUGO|S_IWUSR, show_beep, set_beep, 4); +static SENSOR_DEVICE_ATTR(fan1_beep, S_IRUGO|S_IWUSR, show_beep, set_beep, 5); +static SENSOR_DEVICE_ATTR(fan2_beep, S_IRUGO|S_IWUSR, show_beep, set_beep, 6); + static struct attribute *gl518_attributes[] = { - &dev_attr_in0_input.attr, - &dev_attr_in1_input.attr, - &dev_attr_in2_input.attr, &dev_attr_in3_input.attr, &dev_attr_in0_min.attr, &dev_attr_in1_min.attr, @@ -354,18 +420,32 @@ static struct attribute *gl518_attributes[] = { &dev_attr_in1_max.attr, &dev_attr_in2_max.attr, &dev_attr_in3_max.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_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, &dev_attr_fan1_auto.attr, - &dev_attr_fan1_input.attr, - &dev_attr_fan2_input.attr, - &dev_attr_fan1_min.attr, - &dev_attr_fan2_min.attr, - &dev_attr_fan1_div.attr, - &dev_attr_fan2_div.attr, + &sensor_dev_attr_fan1_input.dev_attr.attr, + &sensor_dev_attr_fan2_input.dev_attr.attr, + &sensor_dev_attr_fan1_min.dev_attr.attr, + &sensor_dev_attr_fan2_min.dev_attr.attr, + &sensor_dev_attr_fan1_div.dev_attr.attr, + &sensor_dev_attr_fan2_div.dev_attr.attr, + &sensor_dev_attr_fan1_alarm.dev_attr.attr, + &sensor_dev_attr_fan2_alarm.dev_attr.attr, + &sensor_dev_attr_fan1_beep.dev_attr.attr, + &sensor_dev_attr_fan2_beep.dev_attr.attr, &dev_attr_temp1_input.attr, &dev_attr_temp1_max.attr, &dev_attr_temp1_max_hyst.attr, + &sensor_dev_attr_temp1_alarm.dev_attr.attr, + &sensor_dev_attr_temp1_beep.dev_attr.attr, &dev_attr_alarms.attr, &dev_attr_beep_enable.attr, @@ -377,6 +457,17 @@ static const struct attribute_group gl518_group = { .attrs = gl518_attributes, }; +static struct attribute *gl518_attributes_r80[] = { + &dev_attr_in0_input.attr, + &dev_attr_in1_input.attr, + &dev_attr_in2_input.attr, + NULL +}; + +static const struct attribute_group gl518_group_r80 = { + .attrs = gl518_attributes_r80, +}; + /* * Real code */ @@ -391,7 +482,7 @@ static int gl518_attach_adapter(struct i2c_adapter *adapter) static int gl518_detect(struct i2c_adapter *adapter, int address, int kind) { int i; - struct i2c_client *new_client; + struct i2c_client *client; struct gl518_data *data; int err = 0; @@ -408,25 +499,24 @@ static int gl518_detect(struct i2c_adapter *adapter, int address, int kind) goto exit; } - new_client = &data->client; - i2c_set_clientdata(new_client, data); + client = &data->client; + i2c_set_clientdata(client, data); - new_client->addr = address; - new_client->adapter = adapter; - new_client->driver = &gl518_driver; - new_client->flags = 0; + client->addr = address; + client->adapter = adapter; + client->driver = &gl518_driver; /* Now, we do the remaining detection. */ if (kind < 0) { - if ((gl518_read_value(new_client, GL518_REG_CHIP_ID) != 0x80) - || (gl518_read_value(new_client, GL518_REG_CONF) & 0x80)) + if ((gl518_read_value(client, GL518_REG_CHIP_ID) != 0x80) + || (gl518_read_value(client, GL518_REG_CONF) & 0x80)) goto exit_free; } /* Determine the chip type. */ if (kind <= 0) { - i = gl518_read_value(new_client, GL518_REG_REVISION); + i = gl518_read_value(client, GL518_REG_REVISION); if (i == 0x00) { kind = gl518sm_r00; } else if (i == 0x80) { @@ -442,25 +532,27 @@ static int gl518_detect(struct i2c_adapter *adapter, int address, int kind) } /* Fill in the remaining client fields */ - strlcpy(new_client->name, "gl518sm", I2C_NAME_SIZE); + strlcpy(client->name, "gl518sm", I2C_NAME_SIZE); data->type = kind; - data->valid = 0; mutex_init(&data->update_lock); /* Tell the I2C layer a new client has arrived */ - if ((err = i2c_attach_client(new_client))) + if ((err = i2c_attach_client(client))) goto exit_free; /* Initialize the GL518SM chip */ data->alarm_mask = 0xff; - data->voltage_in[0]=data->voltage_in[1]=data->voltage_in[2]=0; - gl518_init_client((struct i2c_client *) new_client); + gl518_init_client(client); /* Register sysfs hooks */ - if ((err = sysfs_create_group(&new_client->dev.kobj, &gl518_group))) + if ((err = sysfs_create_group(&client->dev.kobj, &gl518_group))) goto exit_detach; + if (data->type == gl518sm_r80) + if ((err = sysfs_create_group(&client->dev.kobj, + &gl518_group_r80))) + goto exit_remove_files; - data->hwmon_dev = hwmon_device_register(&new_client->dev); + data->hwmon_dev = hwmon_device_register(&client->dev); if (IS_ERR(data->hwmon_dev)) { err = PTR_ERR(data->hwmon_dev); goto exit_remove_files; @@ -469,9 +561,11 @@ static int gl518_detect(struct i2c_adapter *adapter, int address, int kind) return 0; exit_remove_files: - sysfs_remove_group(&new_client->dev.kobj, &gl518_group); + sysfs_remove_group(&client->dev.kobj, &gl518_group); + if (data->type == gl518sm_r80) + sysfs_remove_group(&client->dev.kobj, &gl518_group_r80); exit_detach: - i2c_detach_client(new_client); + i2c_detach_client(client); exit_free: kfree(data); exit: @@ -504,6 +598,8 @@ static int gl518_detach_client(struct i2c_client *client) hwmon_device_unregister(data->hwmon_dev); sysfs_remove_group(&client->dev.kobj, &gl518_group); + if (data->type == gl518sm_r80) + sysfs_remove_group(&client->dev.kobj, &gl518_group_r80); if ((err = i2c_detach_client(client))) return err; @@ -512,9 +608,9 @@ static int gl518_detach_client(struct i2c_client *client) return 0; } -/* Registers 0x07 to 0x0c are word-sized, others are byte-sized +/* Registers 0x07 to 0x0c are word-sized, others are byte-sized GL518 uses a high-byte first convention, which is exactly opposite to - the usual practice. */ + the SMBus standard. */ static int gl518_read_value(struct i2c_client *client, u8 reg) { if ((reg >= 0x07) && (reg <= 0x0c)) @@ -523,9 +619,6 @@ static int gl518_read_value(struct i2c_client *client, u8 reg) return i2c_smbus_read_byte_data(client, reg); } -/* Registers 0x07 to 0x0c are word-sized, others are byte-sized - GL518 uses a high-byte first convention, which is exactly opposite to - the usual practice. */ static int gl518_write_value(struct i2c_client *client, u8 reg, u16 value) { if ((reg >= 0x07) && (reg <= 0x0c)) |