xref: /linux/sound/soc/intel/catpt/sysfs.c (revision 92815da4576a495cb6362cdfb132152fccc2222d)
1 // SPDX-License-Identifier: GPL-2.0-only
2 //
3 // Copyright(c) 2020 Intel Corporation
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 	ret = pm_runtime_resume_and_get(cdev->dev);
19 	if (ret < 0 && ret != -EACCES)
20 		return ret;
21 
22 	ret = catpt_ipc_get_fw_version(cdev, &version);
23 
24 	pm_runtime_mark_last_busy(cdev->dev);
25 	pm_runtime_put_autosuspend(cdev->dev);
26 
27 	if (ret)
28 		return CATPT_IPC_ERROR(ret);
29 
30 	return sysfs_emit(buf, "%d.%d.%d.%d\n", version.type, version.major,
31 			  version.minor, version.build);
32 }
33 static DEVICE_ATTR_RO(fw_version);
34 
35 static ssize_t fw_info_show(struct device *dev,
36 			    struct device_attribute *attr, char *buf)
37 {
38 	struct catpt_dev *cdev = dev_get_drvdata(dev);
39 
40 	return sysfs_emit(buf, "%s\n", cdev->ipc.config.fw_info);
41 }
42 static DEVICE_ATTR_RO(fw_info);
43 
44 static struct attribute *catpt_attrs[] = {
45 	&dev_attr_fw_version.attr,
46 	&dev_attr_fw_info.attr,
47 	NULL
48 };
49 
50 static const struct attribute_group catpt_attr_group = {
51 	.attrs = catpt_attrs,
52 };
53 
54 const struct attribute_group *catpt_attr_groups[] = {
55 	&catpt_attr_group,
56 	NULL
57 };
58