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-rw-r--r--sound/soc/sof/control.c491
1 files changed, 491 insertions, 0 deletions
diff --git a/sound/soc/sof/control.c b/sound/soc/sof/control.c
new file mode 100644
index 000000000..0352d2b61
--- /dev/null
+++ b/sound/soc/sof/control.c
@@ -0,0 +1,491 @@
+// SPDX-License-Identifier: (GPL-2.0-only 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 <linux/leds.h>
+#include "sof-priv.h"
+#include "sof-audio.h"
+
+static void update_mute_led(struct snd_sof_control *scontrol,
+ struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ int temp = 0;
+ int mask;
+ int i;
+
+ mask = 1U << snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
+
+ for (i = 0; i < scontrol->num_channels; i++) {
+ if (ucontrol->value.integer.value[i]) {
+ temp |= mask;
+ break;
+ }
+ }
+
+ if (temp == scontrol->led_ctl.led_value)
+ return;
+
+ scontrol->led_ctl.led_value = temp;
+
+#if IS_REACHABLE(CONFIG_LEDS_TRIGGER_AUDIO)
+ if (!scontrol->led_ctl.direction)
+ ledtrig_audio_set(LED_AUDIO_MUTE, temp ? LED_OFF : LED_ON);
+ else
+ ledtrig_audio_set(LED_AUDIO_MICMUTE, temp ? LED_OFF : LED_ON);
+#endif
+}
+
+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 sof_ipc_ctrl_data *cdata = scontrol->control_data;
+ unsigned int i, channels = scontrol->num_channels;
+
+ /* 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);
+
+ 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_soc_component *scomp = scontrol->scomp;
+ struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
+ unsigned int i, channels = scontrol->num_channels;
+ bool change = false;
+ u32 value;
+
+ /* update each channel */
+ for (i = 0; i < channels; i++) {
+ value = mixer_to_ipc(ucontrol->value.integer.value[i],
+ scontrol->volume_table, sm->max + 1);
+ change = change || (value != cdata->chanv[i].value);
+ cdata->chanv[i].channel = i;
+ cdata->chanv[i].value = value;
+ }
+
+ /* notify DSP of mixer updates */
+ if (pm_runtime_active(scomp->dev))
+ snd_sof_ipc_set_get_comp_data(scontrol,
+ SOF_IPC_COMP_SET_VALUE,
+ SOF_CTRL_TYPE_VALUE_CHAN_GET,
+ SOF_CTRL_CMD_VOLUME,
+ true);
+ return change;
+}
+
+int snd_sof_switch_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 sof_ipc_ctrl_data *cdata = scontrol->control_data;
+ unsigned int i, channels = scontrol->num_channels;
+
+ /* read back each channel */
+ for (i = 0; i < channels; i++)
+ ucontrol->value.integer.value[i] = cdata->chanv[i].value;
+
+ return 0;
+}
+
+int snd_sof_switch_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_soc_component *scomp = scontrol->scomp;
+ struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
+ unsigned int i, channels = scontrol->num_channels;
+ bool change = false;
+ u32 value;
+
+ /* update each channel */
+ for (i = 0; i < channels; i++) {
+ value = ucontrol->value.integer.value[i];
+ change = change || (value != cdata->chanv[i].value);
+ cdata->chanv[i].channel = i;
+ cdata->chanv[i].value = value;
+ }
+
+ if (scontrol->led_ctl.use_led)
+ update_mute_led(scontrol, kcontrol, ucontrol);
+
+ /* notify DSP of mixer updates */
+ if (pm_runtime_active(scomp->dev))
+ snd_sof_ipc_set_get_comp_data(scontrol,
+ SOF_IPC_COMP_SET_VALUE,
+ SOF_CTRL_TYPE_VALUE_CHAN_GET,
+ SOF_CTRL_CMD_SWITCH,
+ true);
+
+ return change;
+}
+
+int snd_sof_enum_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct soc_enum *se =
+ (struct soc_enum *)kcontrol->private_value;
+ struct snd_sof_control *scontrol = se->dobj.private;
+ struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
+ unsigned int i, channels = scontrol->num_channels;
+
+ /* read back each channel */
+ for (i = 0; i < channels; i++)
+ ucontrol->value.enumerated.item[i] = cdata->chanv[i].value;
+
+ return 0;
+}
+
+int snd_sof_enum_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct soc_enum *se =
+ (struct soc_enum *)kcontrol->private_value;
+ struct snd_sof_control *scontrol = se->dobj.private;
+ struct snd_soc_component *scomp = scontrol->scomp;
+ struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
+ unsigned int i, channels = scontrol->num_channels;
+ bool change = false;
+ u32 value;
+
+ /* update each channel */
+ for (i = 0; i < channels; i++) {
+ value = ucontrol->value.enumerated.item[i];
+ change = change || (value != cdata->chanv[i].value);
+ cdata->chanv[i].channel = i;
+ cdata->chanv[i].value = value;
+ }
+
+ /* notify DSP of enum updates */
+ if (pm_runtime_active(scomp->dev))
+ snd_sof_ipc_set_get_comp_data(scontrol,
+ SOF_IPC_COMP_SET_VALUE,
+ SOF_CTRL_TYPE_VALUE_CHAN_GET,
+ SOF_CTRL_CMD_ENUM,
+ true);
+
+ return change;
+}
+
+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_soc_component *scomp = scontrol->scomp;
+ struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
+ struct sof_abi_hdr *data = cdata->data;
+ size_t size;
+
+ if (be->max > sizeof(ucontrol->value.bytes.data)) {
+ dev_err_ratelimited(scomp->dev,
+ "error: data max %d exceeds ucontrol data array size\n",
+ be->max);
+ return -EINVAL;
+ }
+
+ /* be->max has been verified to be >= sizeof(struct sof_abi_hdr) */
+ if (data->size > be->max - sizeof(*data)) {
+ dev_err_ratelimited(scomp->dev,
+ "error: %u bytes of control data is invalid, max is %zu\n",
+ data->size, be->max - sizeof(*data));
+ return -EINVAL;
+ }
+
+ size = data->size + sizeof(*data);
+
+ /* copy back to kcontrol */
+ memcpy(ucontrol->value.bytes.data, data, size);
+
+ return 0;
+}
+
+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_soc_component *scomp = scontrol->scomp;
+ struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
+ struct sof_abi_hdr *data = cdata->data;
+ size_t size;
+
+ if (be->max > sizeof(ucontrol->value.bytes.data)) {
+ dev_err_ratelimited(scomp->dev,
+ "error: data max %d exceeds ucontrol data array size\n",
+ be->max);
+ return -EINVAL;
+ }
+
+ /* be->max has been verified to be >= sizeof(struct sof_abi_hdr) */
+ if (data->size > be->max - sizeof(*data)) {
+ dev_err_ratelimited(scomp->dev,
+ "error: data size too big %u bytes max is %zu\n",
+ data->size, be->max - sizeof(*data));
+ return -EINVAL;
+ }
+
+ size = data->size + sizeof(*data);
+
+ /* copy from kcontrol */
+ memcpy(data, ucontrol->value.bytes.data, size);
+
+ /* notify DSP of byte control updates */
+ if (pm_runtime_active(scomp->dev))
+ snd_sof_ipc_set_get_comp_data(scontrol,
+ SOF_IPC_COMP_SET_DATA,
+ SOF_CTRL_TYPE_DATA_SET,
+ scontrol->cmd,
+ true);
+
+ return 0;
+}
+
+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_soc_component *scomp = scontrol->scomp;
+ 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;
+
+ /* make sure we have at least a header */
+ if (size < sizeof(struct snd_ctl_tlv))
+ return -EINVAL;
+
+ /*
+ * 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;
+
+ /* make sure TLV info is consistent */
+ if (header.length + sizeof(struct snd_ctl_tlv) > size) {
+ dev_err_ratelimited(scomp->dev, "error: inconsistent TLV, data %d + header %zu > %d\n",
+ header.length, sizeof(struct snd_ctl_tlv), size);
+ return -EINVAL;
+ }
+
+ /* be->max is coming from topology */
+ if (header.length > be->max) {
+ dev_err_ratelimited(scomp->dev, "error: Bytes data size %d exceeds max %d.\n",
+ header.length, be->max);
+ return -EINVAL;
+ }
+
+ /* Check that header id matches the command */
+ if (header.numid != scontrol->cmd) {
+ dev_err_ratelimited(scomp->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(scomp->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(scomp->dev, "error: Incompatible ABI version 0x%08x.\n",
+ cdata->data->abi);
+ return -EINVAL;
+ }
+
+ /* be->max has been verified to be >= sizeof(struct sof_abi_hdr) */
+ if (cdata->data->size > be->max - sizeof(const struct sof_abi_hdr)) {
+ dev_err_ratelimited(scomp->dev, "error: Mismatch in ABI data size (truncated?).\n");
+ return -EINVAL;
+ }
+
+ /* notify DSP of byte control updates */
+ if (pm_runtime_active(scomp->dev))
+ snd_sof_ipc_set_get_comp_data(scontrol,
+ SOF_IPC_COMP_SET_DATA,
+ SOF_CTRL_TYPE_DATA_SET,
+ scontrol->cmd,
+ true);
+
+ return 0;
+}
+
+int snd_sof_bytes_ext_volatile_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_soc_component *scomp = scontrol->scomp;
+ 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;
+ size_t data_size;
+ int ret;
+ int err;
+
+ /*
+ * Decrement the limit by ext bytes header size to
+ * ensure the user space buffer is not exceeded.
+ */
+ if (size < sizeof(struct snd_ctl_tlv))
+ return -ENOSPC;
+ size -= sizeof(struct snd_ctl_tlv);
+
+ ret = pm_runtime_get_sync(scomp->dev);
+ if (ret < 0 && ret != -EACCES) {
+ dev_err_ratelimited(scomp->dev, "error: bytes_ext get failed to resume %d\n", ret);
+ pm_runtime_put_noidle(scomp->dev);
+ return ret;
+ }
+
+ /* 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_set_get_comp_data(scontrol, SOF_IPC_COMP_GET_DATA, SOF_CTRL_TYPE_DATA_GET,
+ scontrol->cmd, false);
+ if (ret < 0)
+ goto out;
+
+ /* check data size doesn't exceed max coming from topology */
+ if (cdata->data->size > be->max - sizeof(const struct sof_abi_hdr)) {
+ dev_err_ratelimited(scomp->dev, "error: user data size %d exceeds max size %zu.\n",
+ cdata->data->size,
+ be->max - sizeof(const struct sof_abi_hdr));
+ ret = -EINVAL;
+ goto out;
+ }
+
+ data_size = cdata->data->size + sizeof(const struct sof_abi_hdr);
+
+ /* make sure we don't exceed size provided by user space for data */
+ if (data_size > size) {
+ ret = -ENOSPC;
+ 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))
+ ret = -EFAULT;
+out:
+ pm_runtime_mark_last_busy(scomp->dev);
+ err = pm_runtime_put_autosuspend(scomp->dev);
+ if (err < 0)
+ dev_err_ratelimited(scomp->dev, "error: bytes_ext get 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_soc_component *scomp = scontrol->scomp;
+ 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;
+ size_t data_size;
+
+ /*
+ * Decrement the limit by ext bytes header size to
+ * ensure the user space buffer is not exceeded.
+ */
+ if (size < sizeof(struct snd_ctl_tlv))
+ return -ENOSPC;
+ size -= sizeof(struct snd_ctl_tlv);
+
+ /* set the ABI header values */
+ cdata->data->magic = SOF_ABI_MAGIC;
+ cdata->data->abi = SOF_ABI_VERSION;
+
+ /* check data size doesn't exceed max coming from topology */
+ if (cdata->data->size > be->max - sizeof(const struct sof_abi_hdr)) {
+ dev_err_ratelimited(scomp->dev, "error: user data size %d exceeds max size %zu.\n",
+ cdata->data->size,
+ be->max - sizeof(const struct sof_abi_hdr));
+ return -EINVAL;
+ }
+
+ data_size = cdata->data->size + sizeof(const struct sof_abi_hdr);
+
+ /* make sure we don't exceed size provided by user space for data */
+ if (data_size > size)
+ return -ENOSPC;
+
+ header.numid = scontrol->cmd;
+ header.length = data_size;
+ if (copy_to_user(tlvd, &header, sizeof(const struct snd_ctl_tlv)))
+ return -EFAULT;
+
+ if (copy_to_user(tlvd->tlv, cdata->data, data_size))
+ return -EFAULT;
+
+ return 0;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-24 02:25:09 +0000