365 lines
10 KiB
C
365 lines
10 KiB
C
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/* An hwmon driver for Cameo escc601-32Q Innovium i2c Module */
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#pragma GCC diagnostic ignored "-Wformat-zero-length"
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#include "x86-64-cameo-escc601-32q.h"
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#include "x86-64-cameo-escc601-32q-common.h"
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#include "x86-64-cameo-escc601-32q-fan.h"
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/* extern i2c_client */
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extern struct i2c_client *Cameo_CPLD_23_client; //0x23 for Fan CPLD
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extern struct i2c_client *Cameo_BMC_14_client; //0x14 for BMC slave
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/* end of extern i2c_client */
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/* implement i2c_function */
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ssize_t fan_ctrl_mode_get(struct device *dev, struct device_attribute *da, char *buf)
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{
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int status = -EPERM;
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struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
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struct Cameo_i2c_data *data = i2c_get_clientdata(Cameo_BMC_14_client);
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mutex_lock(&data->update_lock);
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sprintf(buf, "");
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if (attr->index == FANCTRL_MODE)
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{
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if( bmc_enable() == ENABLE)
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{
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status = i2c_smbus_read_byte_data(Cameo_BMC_14_client, FANCTRL_MODE_REG);
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if(status == 0xff || status < 0)
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{
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sprintf(buf, "%sAccess BMC module FAILED\n", buf);
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}
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else
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{
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sprintf(buf, "%s0x%x\n", buf, status);
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}
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}
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else
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{
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sprintf(buf, "%sAccess BMC module FAILED\n", buf);
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}
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}
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mutex_unlock(&data->update_lock);
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return sprintf(buf, "%s\n", buf);
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}
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ssize_t fan_ctrl_rpm_get(struct device *dev, struct device_attribute *da, char *buf)
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{
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int status = -EPERM;
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struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
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struct Cameo_i2c_data *data = i2c_get_clientdata(Cameo_BMC_14_client);
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mutex_lock(&data->update_lock);
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sprintf(buf, "");
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if (attr->index == FANCTRL_RPM)
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{
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if( bmc_enable() == ENABLE)
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{
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status = i2c_smbus_read_byte_data(Cameo_BMC_14_client, FANCTRL_RPM_REG);
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if(status == 0xff || status < 0)
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{
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sprintf(buf, "%sAccess BMC module FAILED\n", buf);
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}
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else
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{
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sprintf(buf, "%s0x%x\n", buf, status);
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}
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}
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else
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{
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sprintf(buf, "%sAccess BMC module FAILED\n", buf);
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}
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}
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mutex_unlock(&data->update_lock);
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return sprintf(buf, "%s\n", buf);
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}
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ssize_t fan_status_get(struct device *dev, struct device_attribute *da, char *buf)
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{
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int status = -EPERM;
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int result = -EPERM;
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struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
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struct Cameo_i2c_data *Cameo_CPLD_23_data = i2c_get_clientdata(Cameo_CPLD_23_client);
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struct Cameo_i2c_data *Cameo_BMC_14_data = i2c_get_clientdata(Cameo_BMC_14_client);
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sprintf(buf, "");
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if( bmc_enable() == ENABLE)
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{
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mutex_lock(&Cameo_BMC_14_data->update_lock);
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status = i2c_smbus_read_byte_data(Cameo_BMC_14_client, BMC_FAN_STAT_REG);
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mutex_unlock(&Cameo_BMC_14_data->update_lock);
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}
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else
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{
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mutex_lock(&Cameo_CPLD_23_data->update_lock);
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status = i2c_smbus_read_byte_data(Cameo_CPLD_23_client, FAN_STAT_REG);
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mutex_unlock(&Cameo_CPLD_23_data->update_lock);
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}
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result = FAILED;
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switch (attr->index)
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{
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case 1:
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if(status & BIT_0_MASK)
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{
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result = PASSED;
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}
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break;
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case 2:
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if(status & BIT_1_MASK)
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{
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result = PASSED;
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}
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break;
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case 3:
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if(status & BIT_2_MASK)
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{
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result = PASSED;
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}
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break;
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case 4:
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if(status & BIT_3_MASK)
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{
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result = PASSED;
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}
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break;
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case 5:
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if(status & BIT_4_MASK)
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{
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result = PASSED;
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}
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break;
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}
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if(result != PASSED)
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{
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return sprintf(buf, "%s%d\n", buf, FAILED);
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}
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return sprintf(buf, "%s%d\n", buf, PASSED);
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}
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ssize_t fan_present_get(struct device *dev, struct device_attribute *da, char *buf)
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{
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int status = -EPERM;
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int result = -EPERM;
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struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
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struct Cameo_i2c_data *Cameo_CPLD_23_data = i2c_get_clientdata(Cameo_CPLD_23_client);
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struct Cameo_i2c_data *Cameo_BMC_14_data = i2c_get_clientdata(Cameo_BMC_14_client);
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sprintf(buf, "");
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if( bmc_enable() == ENABLE)
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{
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mutex_lock(&Cameo_BMC_14_data->update_lock);
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status = i2c_smbus_read_byte_data(Cameo_BMC_14_client, BMC_FAN_PRESENT_REG);
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mutex_unlock(&Cameo_BMC_14_data->update_lock);
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}
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else
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{
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mutex_lock(&Cameo_CPLD_23_data->update_lock);
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status = i2c_smbus_read_byte_data(Cameo_CPLD_23_client, FAN_PRESENT_REG);
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mutex_unlock(&Cameo_CPLD_23_data->update_lock);
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}
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result = FAILED;
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switch (attr->index)
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{
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case 1:
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if(status & BIT_0_MASK)
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{
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result = PASSED;
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}
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break;
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case 2:
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if(status & BIT_1_MASK)
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{
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result = PASSED;
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}
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break;
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case 3:
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if(status & BIT_2_MASK)
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{
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result = PASSED;
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}
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break;
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case 4:
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if(status & BIT_3_MASK)
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{
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result = PASSED;
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}
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break;
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case 5:
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if(status & BIT_4_MASK)
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{
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result = PASSED;
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}
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break;
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}
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if(result != PASSED)
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{
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return sprintf(buf, "%s%d\n", buf, FAILED);
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}
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return sprintf(buf, "%s%d\n", buf, PASSED);
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}
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ssize_t fan_power_get(struct device *dev, struct device_attribute *da, char *buf)
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{
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int status = -EPERM;
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int result = -EPERM;
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struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
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struct Cameo_i2c_data *Cameo_CPLD_23_data = i2c_get_clientdata(Cameo_CPLD_23_client);
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struct Cameo_i2c_data *Cameo_BMC_14_data = i2c_get_clientdata(Cameo_BMC_14_client);
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sprintf(buf, "");
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if( bmc_enable() == ENABLE)
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{
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mutex_lock(&Cameo_BMC_14_data->update_lock);
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status = i2c_smbus_read_byte_data(Cameo_BMC_14_client, BMC_FAN_POWER_REG);
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mutex_unlock(&Cameo_BMC_14_data->update_lock);
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}
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else
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{
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mutex_lock(&Cameo_CPLD_23_data->update_lock);
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status = i2c_smbus_read_byte_data(Cameo_CPLD_23_client, FAN_POWER_REG);
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mutex_unlock(&Cameo_CPLD_23_data->update_lock);
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}
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result = FAILED;
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switch (attr->index)
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{
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case 1:
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if(status & BIT_0_MASK)
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{
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result = PASSED;
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}
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break;
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case 2:
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if(status & BIT_1_MASK)
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{
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result = PASSED;
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}
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break;
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case 3:
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if(status & BIT_2_MASK)
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{
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result = PASSED;
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}
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break;
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case 4:
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if(status & BIT_3_MASK)
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{
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result = PASSED;
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}
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break;
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case 5:
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if(status & BIT_4_MASK)
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{
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result = PASSED;
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}
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break;
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}
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if(result != PASSED)
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{
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return sprintf(buf, "%s%d\n", buf, FAILED);
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}
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return sprintf(buf, "%s%d\n", buf, PASSED);
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}
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ssize_t fan_rpm_get(struct device *dev, struct device_attribute *da, char *buf)
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{
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int status = -EPERM;
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int fan_location = 0;
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int fan_offset = 0;
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u16 fan_speed = 0;
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struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
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struct i2c_client *target_client = NULL;
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sprintf(buf, "");
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if( bmc_enable() == ENABLE)
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{
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target_client = Cameo_BMC_14_client;
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}
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else
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{
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target_client = Cameo_CPLD_23_client;
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}
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switch (attr->index)
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{
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case FAN1_FRONT_RPM:
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fan_location = 0;
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fan_offset = 0;
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break;
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case FAN2_FRONT_RPM:
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fan_location = 0;
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fan_offset = 1;
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break;
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case FAN3_FRONT_RPM:
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fan_location = 0;
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fan_offset = 2;
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break;
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case FAN4_FRONT_RPM:
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fan_location = 0;
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fan_offset = 3;
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break;
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case FAN5_FRONT_RPM:
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fan_location = 0;
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fan_offset = 4;
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break;
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case FAN1_REAR_RPM:
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fan_location = 1;
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fan_offset = 0;
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break;
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case FAN2_REAR_RPM:
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fan_location = 1;
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fan_offset = 1;
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break;
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case FAN3_REAR_RPM:
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fan_location = 1;
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fan_offset = 2;
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break;
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case FAN4_REAR_RPM:
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fan_location = 1;
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fan_offset = 3;
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break;
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case FAN5_REAR_RPM:
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fan_location = 1;
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fan_offset = 4;
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break;
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}
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if(fan_location == 0)
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{
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// front fan of couple
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// read high byte
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status = i2c_smbus_read_byte_data(target_client, FAN_F_RPM_REG+(fan_offset*2)+1);
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fan_speed = status;
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if(status < 0 || status == 0xff)
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{
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fan_speed = 0;
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}
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// read low byte
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status = i2c_smbus_read_byte_data(target_client, FAN_F_RPM_REG+(fan_offset*2));
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fan_speed = ((fan_speed<<8) + status)*30;
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if(status < 0 || status == 0xff)
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{
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fan_speed = 0;
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}
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}
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else
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{
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// rear fan of couple
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// read high byte
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status = i2c_smbus_read_byte_data(target_client, FAN_R_RPM_REG+(fan_offset*2)+1);
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fan_speed = status;
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if(status < 0 || status == 0xff)
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{
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fan_speed = 0;
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}
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// read low byte
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status = i2c_smbus_read_byte_data(target_client, FAN_R_RPM_REG+(fan_offset*2));
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fan_speed = ((fan_speed<<8) + status)*30;
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if(status < 0 || status == 0xff)
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{
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fan_speed = 0;
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}
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}
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sprintf(buf, "%s%d\n", buf, fan_speed);
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return sprintf(buf, "%s\n",buf);
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}
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/* end of implement i2c_function */
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