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-rw-r--r--include/uapi/sound/devdep_params.h12
-rw-r--r--sound/soc/msm/qdsp6v2/msm-pcm-q6-noirq.c150
2 files changed, 160 insertions, 2 deletions
diff --git a/include/uapi/sound/devdep_params.h b/include/uapi/sound/devdep_params.h
index 5061ec0da356..9e3133b76c68 100644
--- a/include/uapi/sound/devdep_params.h
+++ b/include/uapi/sound/devdep_params.h
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2013-2015, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2013-2015,2017, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
@@ -66,4 +66,14 @@ struct dts_eagle_param_desc {
uint32_t device;
} __packed;
+#define HWDEP_FE_BASE 3000 /*unique base for FE hw dep nodes*/
+struct snd_pcm_mmap_fd {
+ int32_t dir;
+ int32_t fd;
+ int32_t size;
+ int32_t actual_size;
+};
+
+#define SNDRV_PCM_IOCTL_MMAP_DATA_FD _IOWR('U', 0xd2, struct snd_pcm_mmap_fd)
+
#endif
diff --git a/sound/soc/msm/qdsp6v2/msm-pcm-q6-noirq.c b/sound/soc/msm/qdsp6v2/msm-pcm-q6-noirq.c
index 6b026bafa276..276270258771 100644
--- a/sound/soc/msm/qdsp6v2/msm-pcm-q6-noirq.c
+++ b/sound/soc/msm/qdsp6v2/msm-pcm-q6-noirq.c
@@ -30,9 +30,12 @@
#include <sound/control.h>
#include <sound/q6audio-v2.h>
#include <sound/timer.h>
+#include <sound/hwdep.h>
+
#include <asm/dma.h>
#include <sound/tlv.h>
#include <sound/pcm_params.h>
+#include <sound/devdep_params.h>
#include "msm-pcm-q6-v2.h"
#include "msm-pcm-routing-v2.h"
@@ -421,6 +424,42 @@ static int msm_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
return ret;
}
+
+static int msm_pcm_mmap_fd(struct snd_pcm_substream *substream,
+ struct snd_pcm_mmap_fd *mmap_fd)
+{
+ struct msm_audio *prtd;
+ struct audio_port_data *apd;
+ struct audio_buffer *ab;
+ int dir = -1;
+
+ if (!substream->runtime) {
+ pr_err("%s substream runtime not found\n", __func__);
+ return -EFAULT;
+ }
+
+ prtd = substream->runtime->private_data;
+ if (!prtd || !prtd->audio_client || !prtd->mmap_flag) {
+ pr_err("%s no audio client or not an mmap session\n", __func__);
+ return -EINVAL;
+ }
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ dir = IN;
+ else
+ dir = OUT;
+
+ apd = prtd->audio_client->port;
+ ab = &(apd[dir].buf[0]);
+ mmap_fd->fd = ion_share_dma_buf_fd(ab->client, ab->handle);
+ if (mmap_fd->fd >= 0) {
+ mmap_fd->dir = dir;
+ mmap_fd->actual_size = ab->actual_size;
+ mmap_fd->size = ab->size;
+ }
+ return mmap_fd->fd < 0 ? -EFAULT : 0;
+}
+
static int msm_pcm_ioctl(struct snd_pcm_substream *substream,
unsigned int cmd, void *arg)
{
@@ -445,6 +484,15 @@ static int msm_pcm_ioctl(struct snd_pcm_substream *substream,
return snd_pcm_lib_ioctl(substream, cmd, arg);
}
+#ifdef CONFIG_COMPAT
+static int msm_pcm_compat_ioctl(struct snd_pcm_substream *substream,
+ unsigned int cmd, void *arg)
+{
+ /* we only handle RESET which is common for both modes */
+ return msm_pcm_ioctl(substream, cmd, arg);
+}
+#endif
+
static snd_pcm_uframes_t msm_pcm_pointer(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
@@ -994,6 +1042,101 @@ static int msm_pcm_add_app_type_controls(struct snd_soc_pcm_runtime *rtd)
return 0;
}
+static int msm_pcm_hwdep_ioctl(struct snd_hwdep *hw, struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ int ret = 0;
+ struct snd_pcm *pcm = hw->private_data;
+ struct snd_pcm_mmap_fd __user *_mmap_fd = NULL;
+ struct snd_pcm_mmap_fd mmap_fd;
+ struct snd_pcm_substream *substream = NULL;
+ int32_t dir = -1;
+
+ switch (cmd) {
+ case SNDRV_PCM_IOCTL_MMAP_DATA_FD:
+ _mmap_fd = (struct snd_pcm_mmap_fd __user *)arg;
+ if (get_user(dir, (int32_t __user *)&(_mmap_fd->dir))) {
+ pr_err("%s: error copying mmap_fd from user\n",
+ __func__);
+ ret = -EFAULT;
+ break;
+ }
+ if (dir != OUT && dir != IN) {
+ pr_err("%s invalid stream dir\n", __func__);
+ ret = -EINVAL;
+ break;
+ }
+ substream = pcm->streams[dir].substream;
+ if (!substream) {
+ pr_err("%s substream not found\n", __func__);
+ ret = -ENODEV;
+ break;
+ }
+ pr_debug("%s : %s MMAP Data fd\n", __func__,
+ dir == 0 ? "P" : "C");
+ if (msm_pcm_mmap_fd(substream, &mmap_fd) < 0) {
+ pr_err("%s: error getting fd\n",
+ __func__);
+ ret = -EFAULT;
+ break;
+ }
+ if (put_user(mmap_fd.fd, &_mmap_fd->fd) ||
+ put_user(mmap_fd.size, &_mmap_fd->size) ||
+ put_user(mmap_fd.actual_size, &_mmap_fd->actual_size)) {
+ pr_err("%s: error copying fd\n", __func__);
+ return -EFAULT;
+ }
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+ return ret;
+}
+
+#ifdef CONFIG_COMPAT
+static int msm_pcm_hwdep_compat_ioctl(struct snd_hwdep *hw,
+ struct file *file,
+ unsigned int cmd,
+ unsigned long arg)
+{
+ /* we only support mmap fd. Handling is common in both modes */
+ return msm_pcm_hwdep_ioctl(hw, file, cmd, arg);
+}
+#else
+static int msm_pcm_hwdep_compat_ioctl(struct snd_hwdep *hw,
+ struct file *file,
+ unsigned int cmd,
+ unsigned long arg)
+{
+ return -EINVAL;
+}
+#endif
+
+static int msm_pcm_add_hwdep_dev(struct snd_soc_pcm_runtime *runtime)
+{
+ struct snd_hwdep *hwdep;
+ int rc;
+ char id[] = "NOIRQ_NN";
+
+ snprintf(id, sizeof(id), "NOIRQ_%d", runtime->pcm->device);
+ pr_debug("%s: pcm dev %d\n", __func__, runtime->pcm->device);
+ rc = snd_hwdep_new(runtime->card->snd_card,
+ &id[0],
+ HWDEP_FE_BASE + runtime->pcm->device,
+ &hwdep);
+ if (!hwdep || rc < 0) {
+ pr_err("%s: hwdep intf failed to create %s - hwdep\n", __func__,
+ id);
+ return rc;
+ }
+
+ hwdep->iface = SNDRV_HWDEP_IFACE_AUDIO_BE; /* for lack of a FE iface */
+ hwdep->private_data = runtime->pcm; /* of type struct snd_pcm */
+ hwdep->ops.ioctl = msm_pcm_hwdep_ioctl;
+ hwdep->ops.ioctl_compat = msm_pcm_hwdep_compat_ioctl;
+ return 0;
+}
static int msm_asoc_pcm_new(struct snd_soc_pcm_runtime *rtd)
{
@@ -1027,7 +1170,9 @@ static int msm_asoc_pcm_new(struct snd_soc_pcm_runtime *rtd)
pr_err("%s: Could not add app type controls failed %d\n",
__func__, ret);
}
-
+ ret = msm_pcm_add_hwdep_dev(rtd);
+ if (ret)
+ pr_err("%s: Could not add hw dep node\n", __func__);
pcm->nonatomic = true;
exit:
return ret;
@@ -1040,6 +1185,9 @@ static struct snd_pcm_ops msm_pcm_ops = {
.copy = msm_pcm_copy,
.hw_params = msm_pcm_hw_params,
.ioctl = msm_pcm_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = msm_pcm_compat_ioctl,
+#endif
.trigger = msm_pcm_trigger,
.pointer = msm_pcm_pointer,
.mmap = msm_pcm_mmap,
generated by cgit v1.2.3 (git 2.25.1) at 2025-12-17 11:26:47 +0000