2 * Copyright (C) 2016 Robert Jarzmik <robert.jarzmik@free.fr>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
9 #include <linux/list.h>
10 #include <linux/slab.h>
11 #include <sound/ac97/codec.h>
12 #include <sound/ac97/compat.h>
13 #include <sound/ac97/controller.h>
14 #include <sound/soc.h>
16 #include "ac97_core.h"
18 static void compat_ac97_release(struct device *dev)
20 kfree(to_ac97_t(dev));
23 static void compat_ac97_reset(struct snd_ac97 *ac97)
25 struct ac97_codec_device *adev = to_ac97_device(ac97->private_data);
26 struct ac97_controller *actrl = adev->ac97_ctrl;
28 if (actrl->ops->reset)
29 actrl->ops->reset(actrl);
32 static void compat_ac97_warm_reset(struct snd_ac97 *ac97)
34 struct ac97_codec_device *adev = to_ac97_device(ac97->private_data);
35 struct ac97_controller *actrl = adev->ac97_ctrl;
37 if (actrl->ops->warm_reset)
38 actrl->ops->warm_reset(actrl);
41 static void compat_ac97_write(struct snd_ac97 *ac97, unsigned short reg,
44 struct ac97_codec_device *adev = to_ac97_device(ac97->private_data);
45 struct ac97_controller *actrl = adev->ac97_ctrl;
47 actrl->ops->write(actrl, ac97->num, reg, val);
50 static unsigned short compat_ac97_read(struct snd_ac97 *ac97,
53 struct ac97_codec_device *adev = to_ac97_device(ac97->private_data);
54 struct ac97_controller *actrl = adev->ac97_ctrl;
56 return actrl->ops->read(actrl, ac97->num, reg);
59 static struct snd_ac97_bus_ops compat_snd_ac97_bus_ops = {
60 .reset = compat_ac97_reset,
61 .warm_reset = compat_ac97_warm_reset,
62 .write = compat_ac97_write,
63 .read = compat_ac97_read,
66 static struct snd_ac97_bus compat_soc_ac97_bus = {
67 .ops = &compat_snd_ac97_bus_ops,
70 struct snd_ac97 *snd_ac97_compat_alloc(struct ac97_codec_device *adev)
72 struct snd_ac97 *ac97;
75 ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL);
77 return ERR_PTR(-ENOMEM);
79 ac97->private_data = adev;
80 ac97->bus = &compat_soc_ac97_bus;
82 ac97->dev.parent = &adev->dev;
83 ac97->dev.release = compat_ac97_release;
84 dev_set_name(&ac97->dev, "%s-compat", dev_name(&adev->dev));
85 ret = device_register(&ac97->dev);
87 put_device(&ac97->dev);
93 EXPORT_SYMBOL_GPL(snd_ac97_compat_alloc);
95 void snd_ac97_compat_release(struct snd_ac97 *ac97)
97 device_unregister(&ac97->dev);
99 EXPORT_SYMBOL_GPL(snd_ac97_compat_release);
101 int snd_ac97_reset(struct snd_ac97 *ac97, bool try_warm, unsigned int id,
102 unsigned int id_mask)
104 struct ac97_codec_device *adev = to_ac97_device(ac97->private_data);
105 struct ac97_controller *actrl = adev->ac97_ctrl;
106 unsigned int scanned;
109 compat_ac97_warm_reset(ac97);
110 scanned = snd_ac97_bus_scan_one(actrl, adev->num);
111 if (ac97_ids_match(scanned, adev->vendor_id, id_mask))
115 compat_ac97_reset(ac97);
116 compat_ac97_warm_reset(ac97);
117 scanned = snd_ac97_bus_scan_one(actrl, adev->num);
118 if (ac97_ids_match(scanned, adev->vendor_id, id_mask))
123 EXPORT_SYMBOL_GPL(snd_ac97_reset);