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- // 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;
- }
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