diff options
Diffstat (limited to '')
-rw-r--r-- | sound/soc/sof/control.c | 491 |
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; +} |