diff options
Diffstat (limited to 'drivers/thermal/int340x_thermal')
| -rw-r--r-- | drivers/thermal/int340x_thermal/int3400_thermal.c | 80 |
1 files changed, 78 insertions, 2 deletions
diff --git a/drivers/thermal/int340x_thermal/int3400_thermal.c b/drivers/thermal/int340x_thermal/int3400_thermal.c index edc1cce117ba..dcb306ea14a4 100644 --- a/drivers/thermal/int340x_thermal/int3400_thermal.c +++ b/drivers/thermal/int340x_thermal/int3400_thermal.c @@ -43,6 +43,74 @@ struct int3400_thermal_priv { struct trt *trts; u8 uuid_bitmap; int rel_misc_dev_res; + int current_uuid_index; +}; + +static ssize_t available_uuids_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct platform_device *pdev = to_platform_device(dev); + struct int3400_thermal_priv *priv = platform_get_drvdata(pdev); + int i; + int length = 0; + + for (i = 0; i < INT3400_THERMAL_MAXIMUM_UUID; i++) { + if (priv->uuid_bitmap & (1 << i)) + if (PAGE_SIZE - length > 0) + length += snprintf(&buf[length], + PAGE_SIZE - length, + "%s\n", + int3400_thermal_uuids[i]); + } + + return length; +} + +static ssize_t current_uuid_show(struct device *dev, + struct device_attribute *devattr, char *buf) +{ + struct platform_device *pdev = to_platform_device(dev); + struct int3400_thermal_priv *priv = platform_get_drvdata(pdev); + + if (priv->uuid_bitmap & (1 << priv->current_uuid_index)) + return sprintf(buf, "%s\n", + int3400_thermal_uuids[priv->current_uuid_index]); + else + return sprintf(buf, "INVALID\n"); +} + +static ssize_t current_uuid_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct platform_device *pdev = to_platform_device(dev); + struct int3400_thermal_priv *priv = platform_get_drvdata(pdev); + int i; + + for (i = 0; i < INT3400_THERMAL_MAXIMUM_UUID; ++i) { + if ((priv->uuid_bitmap & (1 << i)) && + !(strncmp(buf, int3400_thermal_uuids[i], + sizeof(int3400_thermal_uuids[i]) - 1))) { + priv->current_uuid_index = i; + return count; + } + } + + return -EINVAL; +} + +static DEVICE_ATTR(current_uuid, 0644, current_uuid_show, current_uuid_store); +static DEVICE_ATTR_RO(available_uuids); +static struct attribute *uuid_attrs[] = { + &dev_attr_available_uuids.attr, + &dev_attr_current_uuid.attr, + NULL +}; + +static struct attribute_group uuid_attribute_group = { + .attrs = uuid_attrs, + .name = "uuids" }; static int int3400_thermal_get_uuids(struct int3400_thermal_priv *priv) @@ -160,9 +228,9 @@ static int int3400_thermal_set_mode(struct thermal_zone_device *thermal, if (enable != priv->mode) { priv->mode = enable; - /* currently, only PASSIVE COOLING is supported */ result = int3400_thermal_run_osc(priv->adev->handle, - INT3400_THERMAL_PASSIVE_1, enable); + priv->current_uuid_index, + enable); } return result; } @@ -223,7 +291,14 @@ static int int3400_thermal_probe(struct platform_device *pdev) priv->rel_misc_dev_res = acpi_thermal_rel_misc_device_add( priv->adev->handle); + result = sysfs_create_group(&pdev->dev.kobj, &uuid_attribute_group); + if (result) + goto free_zone; + return 0; + +free_zone: + thermal_zone_device_unregister(priv->thermal); free_trt: kfree(priv->trts); free_art: @@ -240,6 +315,7 @@ static int int3400_thermal_remove(struct platform_device *pdev) if (!priv->rel_misc_dev_res) acpi_thermal_rel_misc_device_remove(priv->adev->handle); + sysfs_remove_group(&pdev->dev.kobj, &uuid_attribute_group); thermal_zone_device_unregister(priv->thermal); kfree(priv->trts); kfree(priv->arts); |