new file mode 100644
@@ -0,0 +1,361 @@
+// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
+//
+// This file is provided under a dual BSD/GPLv2 license. When using or
+// redistributing this file, you may do so under either license.
+//
+// Copyright(c) 2018 Intel Corporation. All rights reserved.
+//
+// Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
+//
+
+/* Mixer Controls */
+
+#include <linux/pm_runtime.h>
+#include "sof-priv.h"
+
+static inline u32 mixer_to_ipc(unsigned int value, u32 *volume_map, int size)
+{
+ if (value >= size)
+ return volume_map[size - 1];
+
+ return volume_map[value];
+}
+
+static inline u32 ipc_to_mixer(u32 value, u32 *volume_map, int size)
+{
+ int i;
+
+ for (i = 0; i < size; i++) {
+ if (volume_map[i] >= value)
+ return i;
+ }
+
+ return i - 1;
+}
+
+int snd_sof_volume_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct soc_mixer_control *sm =
+ (struct soc_mixer_control *)kcontrol->private_value;
+ struct snd_sof_control *scontrol = sm->dobj.private;
+ struct snd_sof_dev *sdev = scontrol->sdev;
+ struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
+ unsigned int i, channels = scontrol->num_channels;
+ int err, ret;
+
+ ret = pm_runtime_get_sync(sdev->dev);
+ if (ret < 0) {
+ dev_err_ratelimited(sdev->dev, "error: volume get failed to resume %d\n",
+ ret);
+ return ret;
+ }
+
+ /* get all the mixer data from DSP */
+ snd_sof_ipc_get_comp_data(sdev->ipc, scontrol, SOF_IPC_COMP_GET_VALUE,
+ SOF_CTRL_TYPE_VALUE_CHAN_GET,
+ SOF_CTRL_CMD_VOLUME);
+
+ /* read back each channel */
+ for (i = 0; i < channels; i++)
+ ucontrol->value.integer.value[i] =
+ ipc_to_mixer(cdata->chanv[i].value,
+ scontrol->volume_table, sm->max + 1);
+
+ pm_runtime_mark_last_busy(sdev->dev);
+ err = pm_runtime_put_autosuspend(sdev->dev);
+ if (err < 0)
+ dev_err_ratelimited(sdev->dev, "error: volume get failed to idle %d\n",
+ err);
+ return 0;
+}
+
+int snd_sof_volume_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct soc_mixer_control *sm =
+ (struct soc_mixer_control *)kcontrol->private_value;
+ struct snd_sof_control *scontrol = sm->dobj.private;
+ struct snd_sof_dev *sdev = scontrol->sdev;
+ struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
+ unsigned int i, channels = scontrol->num_channels;
+ int ret, err;
+
+ ret = pm_runtime_get_sync(sdev->dev);
+ if (ret < 0) {
+ dev_err_ratelimited(sdev->dev, "error: volume put failed to resume %d\n",
+ ret);
+ return ret;
+ }
+
+ /* update each channel */
+ for (i = 0; i < channels; i++) {
+ cdata->chanv[i].value =
+ mixer_to_ipc(ucontrol->value.integer.value[i],
+ scontrol->volume_table, sm->max + 1);
+ cdata->chanv[i].channel = i;
+ }
+
+ /* notify DSP of mixer updates */
+ snd_sof_ipc_set_comp_data(sdev->ipc, scontrol, SOF_IPC_COMP_SET_VALUE,
+ SOF_CTRL_TYPE_VALUE_CHAN_GET,
+ SOF_CTRL_CMD_VOLUME);
+
+ pm_runtime_mark_last_busy(sdev->dev);
+ err = pm_runtime_put_autosuspend(sdev->dev);
+ if (err < 0)
+ dev_err_ratelimited(sdev->dev, "error: volume put failed to idle %d\n",
+ err);
+ return 0;
+}
+
+int snd_sof_bytes_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct soc_bytes_ext *be =
+ (struct soc_bytes_ext *)kcontrol->private_value;
+ struct snd_sof_control *scontrol = be->dobj.private;
+ struct snd_sof_dev *sdev = scontrol->sdev;
+ struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
+ struct sof_abi_hdr *data = cdata->data;
+ size_t size;
+ int ret, err;
+
+ if (be->max > sizeof(ucontrol->value.bytes.data)) {
+ dev_err_ratelimited(sdev->dev, "error: data max %d exceeds ucontrol data array size\n",
+ be->max);
+ return -EINVAL;
+ }
+
+ ret = pm_runtime_get_sync(sdev->dev);
+ if (ret < 0) {
+ dev_err_ratelimited(sdev->dev, "error: bytes get failed to resume %d\n",
+ ret);
+ return ret;
+ }
+
+ /* get all the mixer data from DSP */
+ snd_sof_ipc_get_comp_data(sdev->ipc, scontrol, SOF_IPC_COMP_GET_DATA,
+ SOF_CTRL_TYPE_DATA_GET, scontrol->cmd);
+ size = data->size + sizeof(*data);
+ if (size > be->max) {
+ dev_err_ratelimited(sdev->dev, "error: DSP sent %zu bytes max is %d\n",
+ size, be->max);
+ ret = -EINVAL;
+ goto out;
+ }
+
+ /* copy back to kcontrol */
+ memcpy(ucontrol->value.bytes.data, data, size);
+
+out:
+ pm_runtime_mark_last_busy(sdev->dev);
+ err = pm_runtime_put_autosuspend(sdev->dev);
+ if (err < 0)
+ dev_err_ratelimited(sdev->dev, "error: bytes get failed to idle %d\n",
+ err);
+ return ret;
+}
+
+int snd_sof_bytes_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct soc_bytes_ext *be =
+ (struct soc_bytes_ext *)kcontrol->private_value;
+ struct snd_sof_control *scontrol = be->dobj.private;
+ struct snd_sof_dev *sdev = scontrol->sdev;
+ struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
+ struct sof_abi_hdr *data = cdata->data;
+ int ret, err;
+
+ if (be->max > sizeof(ucontrol->value.bytes.data)) {
+ dev_err_ratelimited(sdev->dev, "error: data max %d exceeds ucontrol data array size\n",
+ be->max);
+ return -EINVAL;
+ }
+
+ if (data->size > be->max) {
+ dev_err_ratelimited(sdev->dev, "error: size too big %d bytes max is %d\n",
+ data->size, be->max);
+ return -EINVAL;
+ }
+
+ ret = pm_runtime_get_sync(sdev->dev);
+ if (ret < 0) {
+ dev_err_ratelimited(sdev->dev, "error: bytes put failed to resume %d\n",
+ ret);
+ return ret;
+ }
+
+ /* copy from kcontrol */
+ memcpy(data, ucontrol->value.bytes.data, data->size);
+
+ /* notify DSP of mixer updates */
+ snd_sof_ipc_set_comp_data(sdev->ipc, scontrol, SOF_IPC_COMP_SET_DATA,
+ SOF_CTRL_TYPE_DATA_SET, scontrol->cmd);
+
+ pm_runtime_mark_last_busy(sdev->dev);
+ err = pm_runtime_put_autosuspend(sdev->dev);
+ if (err < 0)
+ dev_err_ratelimited(sdev->dev, "error: bytes put failed to idle %d\n",
+ err);
+ return ret;
+}
+
+int snd_sof_bytes_ext_put(struct snd_kcontrol *kcontrol,
+ const unsigned int __user *binary_data,
+ unsigned int size)
+{
+ struct soc_bytes_ext *be =
+ (struct soc_bytes_ext *)kcontrol->private_value;
+ struct snd_sof_control *scontrol = be->dobj.private;
+ struct snd_sof_dev *sdev = scontrol->sdev;
+ struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
+ struct snd_ctl_tlv header;
+ const struct snd_ctl_tlv __user *tlvd =
+ (const struct snd_ctl_tlv __user *)binary_data;
+ int ret;
+ int err;
+ int max_size = SOF_IPC_MSG_MAX_SIZE -
+ sizeof(const struct sof_ipc_ctrl_data);
+
+ /*
+ * The beginning of bytes data contains a header from where
+ * the length (as bytes) is needed to know the correct copy
+ * length of data from tlvd->tlv.
+ */
+ if (copy_from_user(&header, tlvd, sizeof(const struct snd_ctl_tlv)))
+ return -EFAULT;
+
+ /*
+ * The maximum length that can be copied is limited by IPC max
+ * length and topology defined length for ext bytes control.
+ */
+ if (be->max < max_size) /* min() not used to avoid sparse warnings */
+ max_size = be->max;
+ if (header.length > max_size) {
+ dev_err_ratelimited(sdev->dev, "error: Bytes data size %d exceeds max %d.\n",
+ header.length, max_size);
+ return -EINVAL;
+ }
+
+ /* Check that header id matches the command */
+ if (header.numid != scontrol->cmd) {
+ dev_err_ratelimited(sdev->dev, "error: incorrect numid %d\n",
+ header.numid);
+ return -EINVAL;
+ }
+
+ if (copy_from_user(cdata->data, tlvd->tlv, header.length))
+ return -EFAULT;
+
+ if (cdata->data->magic != SOF_ABI_MAGIC) {
+ dev_err_ratelimited(sdev->dev, "error: Wrong ABI magic 0x%08x.\n",
+ cdata->data->magic);
+ return -EINVAL;
+ }
+
+ if (SOF_ABI_VERSION_INCOMPATIBLE(SOF_ABI_VERSION, cdata->data->abi)) {
+ dev_err_ratelimited(sdev->dev, "error: Incompatible ABI version 0x%08x.\n",
+ cdata->data->abi);
+ return -EINVAL;
+ }
+
+ if (cdata->data->size + sizeof(const struct sof_abi_hdr) > max_size) {
+ dev_err_ratelimited(sdev->dev, "error: Mismatch in ABI data size (truncated?).\n");
+ return -EINVAL;
+ }
+
+ ret = pm_runtime_get_sync(sdev->dev);
+ if (ret < 0) {
+ dev_err_ratelimited(sdev->dev, "error: bytes_ext put failed to resume %d\n",
+ ret);
+ return ret;
+ }
+
+ /* notify DSP of mixer updates */
+ snd_sof_ipc_set_comp_data(sdev->ipc, scontrol, SOF_IPC_COMP_SET_DATA,
+ SOF_CTRL_TYPE_DATA_SET, scontrol->cmd);
+
+ pm_runtime_mark_last_busy(sdev->dev);
+ err = pm_runtime_put_autosuspend(sdev->dev);
+ if (err < 0)
+ dev_err_ratelimited(sdev->dev, "error: bytes_ext put failed to idle %d\n",
+ err);
+
+ return ret;
+}
+
+int snd_sof_bytes_ext_get(struct snd_kcontrol *kcontrol,
+ unsigned int __user *binary_data,
+ unsigned int size)
+{
+ struct soc_bytes_ext *be =
+ (struct soc_bytes_ext *)kcontrol->private_value;
+ struct snd_sof_control *scontrol = be->dobj.private;
+ struct snd_sof_dev *sdev = scontrol->sdev;
+ struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
+ struct snd_ctl_tlv header;
+ struct snd_ctl_tlv __user *tlvd =
+ (struct snd_ctl_tlv __user *)binary_data;
+ int max_size = SOF_IPC_MSG_MAX_SIZE -
+ sizeof(const struct sof_ipc_ctrl_data);
+ int data_size;
+ int err;
+ int ret;
+
+ ret = pm_runtime_get_sync(sdev->dev);
+ if (ret < 0) {
+ dev_err_ratelimited(sdev->dev, "error: bytes_ext get failed to resume %d\n",
+ ret);
+ return ret;
+ }
+
+ /*
+ * Decrement the limit by ext bytes header size to
+ * ensure the user space buffer is not exceeded.
+ */
+ size -= sizeof(const struct snd_ctl_tlv);
+
+ /* set the ABI header values */
+ cdata->data->magic = SOF_ABI_MAGIC;
+ cdata->data->abi = SOF_ABI_VERSION;
+
+ /* get all the component data from DSP */
+ ret = snd_sof_ipc_get_comp_data(sdev->ipc, scontrol,
+ SOF_IPC_COMP_GET_DATA,
+ SOF_CTRL_TYPE_DATA_GET, scontrol->cmd);
+
+ /* Prevent read of other kernel data or possibly corrupt response */
+ data_size = cdata->data->size + sizeof(const struct sof_abi_hdr);
+
+ /* check size. min3() is not used to avoid sparse warnings */
+ if (size < max_size)
+ max_size = size;
+ if (be->max < max_size)
+ max_size = be->max;
+ if (data_size > max_size) {
+ dev_err_ratelimited(sdev->dev, "error: user data size %d exceeds max size %d.\n",
+ data_size, max_size);
+ ret = -EINVAL;
+ goto out;
+ }
+
+ header.numid = scontrol->cmd;
+ header.length = data_size;
+ if (copy_to_user(tlvd, &header, sizeof(const struct snd_ctl_tlv))) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ if (copy_to_user(tlvd->tlv, cdata->data, data_size))
+ return -EFAULT;
+
+out:
+ pm_runtime_mark_last_busy(sdev->dev);
+ err = pm_runtime_put_autosuspend(sdev->dev);
+ if (err < 0)
+ dev_err_ratelimited(sdev->dev, "error: bytes_ext get failed to idle %d\n",
+ err);
+ return ret;
+}