catpt/sysfs.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 //
   3 // Copyright(c) 2020 Intel Corporation. All rights reserved.
   4 //
   5 // Author: Cezary Rojewski <cezary.rojewski@intel.com>
   6 //
   7
   8 #include <linux/pm_runtime.h>
   9 #include "core.h"
  10
  11 static ssize_t fw_version_show(struct device *dev,
  12                                struct device_attribute *attr, char *buf)
  13 {
  14         struct catpt_dev *cdev = dev_get_drvdata(dev);
  15         struct catpt_fw_version version;
  16         int ret;
  17
  18         pm_runtime_get_sync(cdev->dev);
  19
  20         ret = catpt_ipc_get_fw_version(cdev, &version);
  21
  22         pm_runtime_mark_last_busy(cdev->dev);
  23         pm_runtime_put_autosuspend(cdev->dev);
  24
  25         if (ret)
  26                 return CATPT_IPC_ERROR(ret);
  27
  28         return sprintf(buf, "%d.%d.%d.%d\n", version.type, version.major,
  29                        version.minor, version.build);
  30 }
  31 static DEVICE_ATTR_RO(fw_version);
  32
  33 static ssize_t fw_info_show(struct device *dev,
  34                             struct device_attribute *attr, char *buf)
  35 {
  36         struct catpt_dev *cdev = dev_get_drvdata(dev);
  37
  38         return sprintf(buf, "%s\n", cdev->ipc.config.fw_info);
  39 }
  40 static DEVICE_ATTR_RO(fw_info);
  41
  42 static struct attribute *catpt_attrs[] = {
  43         &dev_attr_fw_version.attr,
  44         &dev_attr_fw_info.attr,
  45         NULL
  46 };
  47
  48 static const struct attribute_group catpt_attr_group = {
  49         .attrs = catpt_attrs,
  50 };
  51
  52 const struct attribute_group *catpt_attr_groups[] = {
  53         &catpt_attr_group,
  54         NULL
  55 };