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Diffstat (limited to 'sound/pci/hda/hda_hwdep.c')
-rw-r--r--sound/pci/hda/hda_hwdep.c119
1 files changed, 0 insertions, 119 deletions
diff --git a/sound/pci/hda/hda_hwdep.c b/sound/pci/hda/hda_hwdep.c
deleted file mode 100644
index 9325e5c3cbe6..000000000000
--- a/sound/pci/hda/hda_hwdep.c
+++ /dev/null
@@ -1,119 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * HWDEP Interface for HD-audio codec
- *
- * Copyright (c) 2007 Takashi Iwai <tiwai@suse.de>
- */
-
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/compat.h>
-#include <linux/nospec.h>
-#include <sound/core.h>
-#include <sound/hda_codec.h>
-#include "hda_local.h"
-#include <sound/hda_hwdep.h>
-#include <sound/minors.h>
-
-/*
- * write/read an out-of-bound verb
- */
-static int verb_write_ioctl(struct hda_codec *codec,
- struct hda_verb_ioctl __user *arg)
-{
- u32 verb, res;
-
- if (get_user(verb, &arg->verb))
- return -EFAULT;
- res = snd_hda_codec_read(codec, verb >> 24, 0,
- (verb >> 8) & 0xffff, verb & 0xff);
- if (put_user(res, &arg->res))
- return -EFAULT;
- return 0;
-}
-
-static int get_wcap_ioctl(struct hda_codec *codec,
- struct hda_verb_ioctl __user *arg)
-{
- u32 verb, res;
-
- if (get_user(verb, &arg->verb))
- return -EFAULT;
- /* open-code get_wcaps(verb>>24) with nospec */
- verb >>= 24;
- if (verb < codec->core.start_nid ||
- verb >= codec->core.start_nid + codec->core.num_nodes) {
- res = 0;
- } else {
- verb -= codec->core.start_nid;
- verb = array_index_nospec(verb, codec->core.num_nodes);
- res = codec->wcaps[verb];
- }
- if (put_user(res, &arg->res))
- return -EFAULT;
- return 0;
-}
-
-
-/*
- */
-static int hda_hwdep_ioctl(struct snd_hwdep *hw, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- struct hda_codec *codec = hw->private_data;
- void __user *argp = (void __user *)arg;
-
- switch (cmd) {
- case HDA_IOCTL_PVERSION:
- return put_user(HDA_HWDEP_VERSION, (int __user *)argp);
- case HDA_IOCTL_VERB_WRITE:
- return verb_write_ioctl(codec, argp);
- case HDA_IOCTL_GET_WCAP:
- return get_wcap_ioctl(codec, argp);
- }
- return -ENOIOCTLCMD;
-}
-
-#ifdef CONFIG_COMPAT
-static int hda_hwdep_ioctl_compat(struct snd_hwdep *hw, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- return hda_hwdep_ioctl(hw, file, cmd, (unsigned long)compat_ptr(arg));
-}
-#endif
-
-static int hda_hwdep_open(struct snd_hwdep *hw, struct file *file)
-{
- if (!capable(CAP_SYS_RAWIO))
- return -EACCES;
- return 0;
-}
-
-int snd_hda_create_hwdep(struct hda_codec *codec)
-{
- char hwname[16];
- struct snd_hwdep *hwdep;
- int err;
-
- sprintf(hwname, "HDA Codec %d", codec->addr);
- err = snd_hwdep_new(codec->card, hwname, codec->addr, &hwdep);
- if (err < 0)
- return err;
- codec->hwdep = hwdep;
- sprintf(hwdep->name, "HDA Codec %d", codec->addr);
- hwdep->iface = SNDRV_HWDEP_IFACE_HDA;
- hwdep->private_data = codec;
- hwdep->exclusive = 1;
-
- hwdep->ops.open = hda_hwdep_open;
- hwdep->ops.ioctl = hda_hwdep_ioctl;
-#ifdef CONFIG_COMPAT
- hwdep->ops.ioctl_compat = hda_hwdep_ioctl_compat;
-#endif
-
- /* for sysfs */
- hwdep->dev->groups = snd_hda_dev_attr_groups;
- dev_set_drvdata(hwdep->dev, codec);
-
- return 0;
-}