From 4c69e8bc415865095e7d6ee3b456b97c9edf7746 Mon Sep 17 00:00:00 2001
From: Banajit Goswami <bgoswami@codeaurora.org>
Date: Mon, 21 Nov 2016 18:14:37 -0800
Subject: [PATCH] ASoC: core: Support for compress ioctls

Compat driver should support compress ioctls when
COMPAT mode is enabled. Change adds support for
handling compress ioctls.

Change-Id: If7223ace326253240a1cd65bc9a111b8903977f1
Signed-off-by: Gopikrishnaiah Anandan <agopik@codeaurora.org>
Signed-off-by: Banajit Goswami <bgoswami@codeaurora.org>
Signed-off-by: Meng Wang <mwang@codeaurora.org>
---
 include/sound/pcm.h     |  4 ++++
 sound/core/pcm_compat.c | 26 ++++++++++++++++++++++++++
 2 files changed, 30 insertions(+)

diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index 9576a47f2baf..82e6c3496169 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -54,6 +54,10 @@ struct snd_pcm_ops {
 	int (*close)(struct snd_pcm_substream *substream);
 	int (*ioctl)(struct snd_pcm_substream * substream,
 		     unsigned int cmd, void *arg);
+#ifdef CONFIG_AUDIO_QGKI
+	int (*compat_ioctl)(struct snd_pcm_substream *substream,
+		     unsigned int cmd, void *arg);
+#endif
 	int (*hw_params)(struct snd_pcm_substream *substream,
 			 struct snd_pcm_hw_params *params);
 	int (*hw_free)(struct snd_pcm_substream *substream);
diff --git a/sound/core/pcm_compat.c b/sound/core/pcm_compat.c
index 6f9003b1869a..6735ec629b87 100644
--- a/sound/core/pcm_compat.c
+++ b/sound/core/pcm_compat.c
@@ -635,6 +635,27 @@ enum {
 #endif /* CONFIG_X86_X32 */
 };
 
+#ifdef CONFIG_AUDIO_QGKI
+static int snd_compressed_ioctl32(struct snd_pcm_substream *substream,
+				 unsigned int cmd, void __user *arg)
+{
+	struct snd_pcm_runtime *runtime;
+	int err = 0;
+
+	if (PCM_RUNTIME_CHECK(substream))
+		return -ENXIO;
+	runtime = substream->runtime;
+	if (substream->ops->compat_ioctl) {
+		err = substream->ops->compat_ioctl(substream, cmd, arg);
+	} else {
+		err = -ENOIOCTLCMD;
+		pr_err("%s failed cmd = %d\n", __func__, cmd);
+	}
+	pr_debug("%s called with cmd = %d\n", __func__, cmd);
+	return err;
+}
+#endif
+
 static long snd_pcm_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg)
 {
 	struct snd_pcm_file *pcm_file;
@@ -712,6 +733,11 @@ static long snd_pcm_ioctl_compat(struct file *file, unsigned int cmd, unsigned l
 	case SNDRV_PCM_IOCTL_CHANNEL_INFO_X32:
 		return snd_pcm_ioctl_channel_info_x32(substream, argp);
 #endif /* CONFIG_X86_X32 */
+#ifdef CONFIG_AUDIO_QGKI
+	default:
+		if (_IOC_TYPE(cmd) == 'C')
+			return snd_compressed_ioctl32(substream, cmd, argp);
+#endif
 	}
 
 	return -ENOIOCTLCMD;