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When using or // redistributing this file, you may do so under either license. // // Copyright(c) 2021 Intel Corporation. All rights reserved. // // #include "sof-priv.h" #include "sof-audio.h" #include "ipc3-priv.h" /* IPC set()/get() for kcontrols. */ static int sof_ipc3_set_get_kcontrol_data(struct snd_sof_control *scontrol, bool set, bool lock) { struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scontrol->scomp); struct sof_ipc_ctrl_data *cdata = scontrol->ipc_control_data; const struct sof_ipc_ops *iops = sdev->ipc->ops; enum sof_ipc_ctrl_type ctrl_type; struct snd_sof_widget *swidget; bool widget_found = false; u32 ipc_cmd, msg_bytes; int ret = 0; list_for_each_entry(swidget, &sdev->widget_list, list) { if (swidget->comp_id == scontrol->comp_id) { widget_found = true; break; } } if (!widget_found) { dev_err(sdev->dev, "%s: can't find widget with id %d\n", __func__, scontrol->comp_id); return -EINVAL; } if (lock) mutex_lock(&swidget->setup_mutex); else lockdep_assert_held(&swidget->setup_mutex); /* * Volatile controls should always be part of static pipelines and the * widget use_count would always be > 0 in this case. For the others, * just return the cached value if the widget is not set up. */ if (!swidget->use_count) goto unlock; /* * Select the IPC cmd and the ctrl_type based on the ctrl_cmd and the * direction * Note: SOF_CTRL_TYPE_VALUE_COMP_* is not used and supported currently * for ctrl_type */ if (cdata->cmd == SOF_CTRL_CMD_BINARY) { ipc_cmd = set ? SOF_IPC_COMP_SET_DATA : SOF_IPC_COMP_GET_DATA; ctrl_type = set ? SOF_CTRL_TYPE_DATA_SET : SOF_CTRL_TYPE_DATA_GET; } else { ipc_cmd = set ? SOF_IPC_COMP_SET_VALUE : SOF_IPC_COMP_GET_VALUE; ctrl_type = set ? SOF_CTRL_TYPE_VALUE_CHAN_SET : SOF_CTRL_TYPE_VALUE_CHAN_GET; } cdata->rhdr.hdr.cmd = SOF_IPC_GLB_COMP_MSG | ipc_cmd; cdata->type = ctrl_type; cdata->comp_id = scontrol->comp_id; cdata->msg_index = 0; /* calculate header and data size */ switch (cdata->type) { case SOF_CTRL_TYPE_VALUE_CHAN_GET: case SOF_CTRL_TYPE_VALUE_CHAN_SET: cdata->num_elems = scontrol->num_channels; msg_bytes = scontrol->num_channels * sizeof(struct sof_ipc_ctrl_value_chan); msg_bytes += sizeof(struct sof_ipc_ctrl_data); break; case SOF_CTRL_TYPE_DATA_GET: case SOF_CTRL_TYPE_DATA_SET: cdata->num_elems = cdata->data->size; msg_bytes = cdata->data->size; msg_bytes += sizeof(struct sof_ipc_ctrl_data) + sizeof(struct sof_abi_hdr); break; default: ret = -EINVAL; goto unlock; } cdata->rhdr.hdr.size = msg_bytes; cdata->elems_remaining = 0; ret = iops->set_get_data(sdev, cdata, cdata->rhdr.hdr.size, set); if (!set) goto unlock; /* It is a set-data operation, and we have a backup that we can restore */ if (ret < 0) { if (!scontrol->old_ipc_control_data) goto unlock; /* * Current ipc_control_data is not valid, we use the last known good * configuration */ memcpy(scontrol->ipc_control_data, scontrol->old_ipc_control_data, scontrol->max_size); kfree(scontrol->old_ipc_control_data); scontrol->old_ipc_control_data = NULL; /* Send the last known good configuration to firmware */ ret = iops->set_get_data(sdev, cdata, cdata->rhdr.hdr.size, set); if (ret < 0) goto unlock; } unlock: if (lock) mutex_unlock(&swidget->setup_mutex); return ret; } static void sof_ipc3_refresh_control(struct snd_sof_control *scontrol) { struct sof_ipc_ctrl_data *cdata = scontrol->ipc_control_data; struct snd_soc_component *scomp = scontrol->scomp; int ret; if (!scontrol->comp_data_dirty) return; if (!pm_runtime_active(scomp->dev)) return; /* set the ABI header values */ cdata->data->magic = SOF_ABI_MAGIC; cdata->data->abi = SOF_ABI_VERSION; /* refresh the component data from DSP */ scontrol->comp_data_dirty = false; ret = sof_ipc3_set_get_kcontrol_data(scontrol, false, true); if (ret < 0) { dev_err(scomp->dev, "Failed to get control data: %d\n", ret); /* Set the flag to re-try next time to get the data */ scontrol->comp_data_dirty = true; } } static int sof_ipc3_volume_get(struct snd_sof_control *scontrol, struct snd_ctl_elem_value *ucontrol) { struct sof_ipc_ctrl_data *cdata = scontrol->ipc_control_data; unsigned int channels = scontrol->num_channels; unsigned int i; sof_ipc3_refresh_control(scontrol); /* 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, scontrol->max + 1); return 0; } static bool sof_ipc3_volume_put(struct snd_sof_control *scontrol, struct snd_ctl_elem_value *ucontrol) { struct sof_ipc_ctrl_data *cdata = scontrol->ipc_control_data; struct snd_soc_component *scomp = scontrol->scomp; unsigned int channels = scontrol->num_channels; unsigned int i; bool change = false; /* update each channel */ for (i = 0; i < channels; i++) { u32 value = mixer_to_ipc(ucontrol->value.integer.value[i], scontrol->volume_table, scontrol->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)) { int ret = sof_ipc3_set_get_kcontrol_data(scontrol, true, true); if (ret < 0) { dev_err(scomp->dev, "Failed to set mixer updates for %s\n", scontrol->name); return false; } } return change; } static int sof_ipc3_switch_get(struct snd_sof_control *scontrol, struct snd_ctl_elem_value *ucontrol) { struct sof_ipc_ctrl_data *cdata = scontrol->ipc_control_data; unsigned int channels = scontrol->num_channels; unsigned int i; sof_ipc3_refresh_control(scontrol); /* read back each channel */ for (i = 0; i < channels; i++) ucontrol->value.integer.value[i] = cdata->chanv[i].value; return 0; } static bool sof_ipc3_switch_put(struct snd_sof_control *scontrol, struct snd_ctl_elem_value *ucontrol) { struct sof_ipc_ctrl_data *cdata = scontrol->ipc_control_data; struct snd_soc_component *scomp = scontrol->scomp; unsigned int channels = scontrol->num_channels; unsigned int i; 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; } /* notify DSP of mixer updates */ if (pm_runtime_active(scomp->dev)) { int ret = sof_ipc3_set_get_kcontrol_data(scontrol, true, true); if (ret < 0) { dev_err(scomp->dev, "Failed to set mixer updates for %s\n", scontrol->name); return false; } } return change; } static int sof_ipc3_enum_get(struct snd_sof_control *scontrol, struct snd_ctl_elem_value *ucontrol) { struct sof_ipc_ctrl_data *cdata = scontrol->ipc_control_data; unsigned int channels = scontrol->num_channels; unsigned int i; sof_ipc3_refresh_control(scontrol); /* read back each channel */ for (i = 0; i < channels; i++) ucontrol->value.enumerated.item[i] = cdata->chanv[i].value; return 0; } static bool sof_ipc3_enum_put(struct snd_sof_control *scontrol, struct snd_ctl_elem_value *ucontrol) { struct sof_ipc_ctrl_data *cdata = scontrol->ipc_control_data; struct snd_soc_component *scomp = scontrol->scomp; unsigned int channels = scontrol->num_channels; unsigned int i; 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)) { int ret = sof_ipc3_set_get_kcontrol_data(scontrol, true, true); if (ret < 0) { dev_err(scomp->dev, "Failed to set enum updates for %s\n", scontrol->name); return false; } } return change; } static int sof_ipc3_bytes_get(struct snd_sof_control *scontrol, struct snd_ctl_elem_value *ucontrol) { struct sof_ipc_ctrl_data *cdata = scontrol->ipc_control_data; struct snd_soc_component *scomp = scontrol->scomp; struct sof_abi_hdr *data = cdata->data; size_t size; sof_ipc3_refresh_control(scontrol); if (scontrol->max_size > sizeof(ucontrol->value.bytes.data)) { dev_err_ratelimited(scomp->dev, "data max %zu exceeds ucontrol data array size\n", scontrol->max_size); return -EINVAL; } /* be->max has been verified to be >= sizeof(struct sof_abi_hdr) */ if (data->size > scontrol->max_size - sizeof(*data)) { dev_err_ratelimited(scomp->dev, "%u bytes of control data is invalid, max is %zu\n", data->size, scontrol->max_size - sizeof(*data)); return -EINVAL; } size = data->size + sizeof(*data); /* copy back to kcontrol */ memcpy(ucontrol->value.bytes.data, data, size); return 0; } static int sof_ipc3_bytes_put(struct snd_sof_control *scontrol, struct snd_ctl_elem_value *ucontrol) { struct sof_ipc_ctrl_data *cdata = scontrol->ipc_control_data; struct snd_soc_component *scomp = scontrol->scomp; struct sof_abi_hdr *data = cdata->data; size_t size; if (scontrol->max_size > sizeof(ucontrol->value.bytes.data)) { dev_err_ratelimited(scomp->dev, "data max %zu exceeds ucontrol data array size\n", scontrol->max_size); return -EINVAL; } /* scontrol->max_size has been verified to be >= sizeof(struct sof_abi_hdr) */ if (data->size > scontrol->max_size - sizeof(*data)) { dev_err_ratelimited(scomp->dev, "data size too big %u bytes max is %zu\n", data->size, scontrol->max_size - 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)) return sof_ipc3_set_get_kcontrol_data(scontrol, true, true); return 0; } static int sof_ipc3_bytes_ext_put(struct snd_sof_control *scontrol, const unsigned int __user *binary_data, unsigned int size) { const struct snd_ctl_tlv __user *tlvd = (const struct snd_ctl_tlv __user *)binary_data; struct sof_ipc_ctrl_data *cdata = scontrol->ipc_control_data; struct snd_soc_component *scomp = scontrol->scomp; struct snd_ctl_tlv header; int ret = -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(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, "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 > scontrol->max_size) { dev_err_ratelimited(scomp->dev, "Bytes data size %d exceeds max %zu\n", header.length, scontrol->max_size); return -EINVAL; } /* Check that header id matches the command */ if (header.numid != cdata->cmd) { dev_err_ratelimited(scomp->dev, "Incorrect command for bytes put %d\n", header.numid); return -EINVAL; } if (!scontrol->old_ipc_control_data) { /* Create a backup of the current, valid bytes control */ scontrol->old_ipc_control_data = kmemdup(scontrol->ipc_control_data, scontrol->max_size, GFP_KERNEL); if (!scontrol->old_ipc_control_data) return -ENOMEM; } if (copy_from_user(cdata->data, tlvd->tlv, header.length)) { ret = -EFAULT; goto err_restore; } if (cdata->data->magic != SOF_ABI_MAGIC) { dev_err_ratelimited(scomp->dev, "Wrong ABI magic 0x%08x\n", cdata->data->magic); goto err_restore; } if (SOF_ABI_VERSION_INCOMPATIBLE(SOF_ABI_VERSION, cdata->data->abi)) { dev_err_ratelimited(scomp->dev, "Incompatible ABI version 0x%08x\n", cdata->data->abi); goto err_restore; } /* be->max has been verified to be >= sizeof(struct sof_abi_hdr) */ if (cdata->data->size > scontrol->max_size - sizeof(struct sof_abi_hdr)) { dev_err_ratelimited(scomp->dev, "Mismatch in ABI data size (truncated?)\n"); goto err_restore; } /* notify DSP of byte control updates */ if (pm_runtime_active(scomp->dev)) { /* Actually send the data to the DSP; this is an opportunity to validate the data */ return sof_ipc3_set_get_kcontrol_data(scontrol, true, true); } return 0; err_restore: /* If we have an issue, we restore the old, valid bytes control data */ if (scontrol->old_ipc_control_data) { memcpy(cdata->data, scontrol->old_ipc_control_data, scontrol->max_size); kfree(scontrol->old_ipc_control_data); scontrol->old_ipc_control_data = NULL; } return ret; } static int _sof_ipc3_bytes_ext_get(struct snd_sof_control *scontrol, const unsigned int __user *binary_data, unsigned int size, bool from_dsp) { struct snd_ctl_tlv __user *tlvd = (struct snd_ctl_tlv __user *)binary_data; struct sof_ipc_ctrl_data *cdata = scontrol->ipc_control_data; struct snd_soc_component *scomp = scontrol->scomp; struct snd_ctl_tlv header; 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; /* get all the component data from DSP */ if (from_dsp) { int ret = sof_ipc3_set_get_kcontrol_data(scontrol, false, true); if (ret < 0) return ret; } /* check data size doesn't exceed max coming from topology */ if (cdata->data->size > scontrol->max_size - sizeof(struct sof_abi_hdr)) { dev_err_ratelimited(scomp->dev, "User data size %d exceeds max size %zu\n", cdata->data->size, scontrol->max_size - sizeof(struct sof_abi_hdr)); return -EINVAL; } data_size = cdata->data->size + sizeof(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 = cdata->cmd; header.length = data_size; if (copy_to_user(tlvd, &header, sizeof(struct snd_ctl_tlv))) return -EFAULT; if (copy_to_user(tlvd->tlv, cdata->data, data_size)) return -EFAULT; return 0; } static int sof_ipc3_bytes_ext_get(struct snd_sof_control *scontrol, const unsigned int __user *binary_data, unsigned int size) { return _sof_ipc3_bytes_ext_get(scontrol, binary_data, size, false); } static int sof_ipc3_bytes_ext_volatile_get(struct snd_sof_control *scontrol, const unsigned int __user *binary_data, unsigned int size) { return _sof_ipc3_bytes_ext_get(scontrol, binary_data, size, true); } static void snd_sof_update_control(struct snd_sof_control *scontrol, struct sof_ipc_ctrl_data *cdata) { struct snd_soc_component *scomp = scontrol->scomp; struct sof_ipc_ctrl_data *local_cdata; int i; local_cdata = scontrol->ipc_control_data; if (cdata->cmd == SOF_CTRL_CMD_BINARY) { if (cdata->num_elems != local_cdata->data->size) { dev_err(scomp->dev, "cdata binary size mismatch %u - %u\n", cdata->num_elems, local_cdata->data->size); return; } /* copy the new binary data */ memcpy(local_cdata->data, cdata->data, cdata->num_elems); } else if (cdata->num_elems != scontrol->num_channels) { dev_err(scomp->dev, "cdata channel count mismatch %u - %d\n", cdata->num_elems, scontrol->num_channels); } else { /* copy the new values */ for (i = 0; i < cdata->num_elems; i++) local_cdata->chanv[i].value = cdata->chanv[i].value; } } static void sof_ipc3_control_update(struct snd_sof_dev *sdev, void *ipc_control_message) { struct sof_ipc_ctrl_data *cdata = ipc_control_message; struct snd_soc_dapm_widget *widget; struct snd_sof_control *scontrol; struct snd_sof_widget *swidget; struct snd_kcontrol *kc = NULL; struct soc_mixer_control *sm; struct soc_bytes_ext *be; size_t expected_size; struct soc_enum *se; bool found = false; int i, type; if (cdata->type == SOF_CTRL_TYPE_VALUE_COMP_GET || cdata->type == SOF_CTRL_TYPE_VALUE_COMP_SET) { dev_err(sdev->dev, "Component data is not supported in control notification\n"); return; } /* Find the swidget first */ list_for_each_entry(swidget, &sdev->widget_list, list) { if (swidget->comp_id == cdata->comp_id) { found = true; break; } } if (!found) return; /* Translate SOF cmd to TPLG type */ switch (cdata->cmd) { case SOF_CTRL_CMD_VOLUME: case SOF_CTRL_CMD_SWITCH: type = SND_SOC_TPLG_TYPE_MIXER; break; case SOF_CTRL_CMD_BINARY: type = SND_SOC_TPLG_TYPE_BYTES; break; case SOF_CTRL_CMD_ENUM: type = SND_SOC_TPLG_TYPE_ENUM; break; default: dev_err(sdev->dev, "Unknown cmd %u in %s\n", cdata->cmd, __func__); return; } widget = swidget->widget; for (i = 0; i < widget->num_kcontrols; i++) { /* skip non matching types or non matching indexes within type */ if (widget->dobj.widget.kcontrol_type[i] == type && widget->kcontrol_news[i].index == cdata->index) { kc = widget->kcontrols[i]; break; } } if (!kc) return; switch (cdata->cmd) { case SOF_CTRL_CMD_VOLUME: case SOF_CTRL_CMD_SWITCH: sm = (struct soc_mixer_control *)kc->private_value; scontrol = sm->dobj.private; break; case SOF_CTRL_CMD_BINARY: be = (struct soc_bytes_ext *)kc->private_value; scontrol = be->dobj.private; break; case SOF_CTRL_CMD_ENUM: se = (struct soc_enum *)kc->private_value; scontrol = se->dobj.private; break; default: return; } expected_size = sizeof(struct sof_ipc_ctrl_data); switch (cdata->type) { case SOF_CTRL_TYPE_VALUE_CHAN_GET: case SOF_CTRL_TYPE_VALUE_CHAN_SET: expected_size += cdata->num_elems * sizeof(struct sof_ipc_ctrl_value_chan); break; case SOF_CTRL_TYPE_DATA_GET: case SOF_CTRL_TYPE_DATA_SET: expected_size += cdata->num_elems + sizeof(struct sof_abi_hdr); break; default: return; } if (cdata->rhdr.hdr.size != expected_size) { dev_err(sdev->dev, "Component notification size mismatch\n"); return; } if (cdata->num_elems) /* * The message includes the updated value/data, update the * control's local cache using the received notification */ snd_sof_update_control(scontrol, cdata); else /* Mark the scontrol that the value/data is changed in SOF */ scontrol->comp_data_dirty = true; snd_ctl_notify_one(swidget->scomp->card->snd_card, SNDRV_CTL_EVENT_MASK_VALUE, kc, 0); } static int sof_ipc3_widget_kcontrol_setup(struct snd_sof_dev *sdev, struct snd_sof_widget *swidget) { struct snd_sof_control *scontrol; int ret; /* set up all controls for the widget */ list_for_each_entry(scontrol, &sdev->kcontrol_list, list) if (scontrol->comp_id == swidget->comp_id) { /* set kcontrol data in DSP */ ret = sof_ipc3_set_get_kcontrol_data(scontrol, true, false); if (ret < 0) { dev_err(sdev->dev, "kcontrol %d set up failed for widget %s\n", scontrol->comp_id, swidget->widget->name); return ret; } /* * Read back the data from the DSP for static widgets. * This is particularly useful for binary kcontrols * associated with static pipeline widgets to initialize * the data size to match that in the DSP. */ if (swidget->dynamic_pipeline_widget) continue; ret = sof_ipc3_set_get_kcontrol_data(scontrol, false, false); if (ret < 0) dev_warn(sdev->dev, "kcontrol %d read failed for widget %s\n", scontrol->comp_id, swidget->widget->name); } return 0; } static int sof_ipc3_set_up_volume_table(struct snd_sof_control *scontrol, int tlv[SOF_TLV_ITEMS], int size) { int i; /* init the volume table */ scontrol->volume_table = kcalloc(size, sizeof(u32), GFP_KERNEL); if (!scontrol->volume_table) return -ENOMEM; /* populate the volume table */ for (i = 0; i < size ; i++) scontrol->volume_table[i] = vol_compute_gain(i, tlv); return 0; } const struct sof_ipc_tplg_control_ops tplg_ipc3_control_ops = { .volume_put = sof_ipc3_volume_put, .volume_get = sof_ipc3_volume_get, .switch_put = sof_ipc3_switch_put, .switch_get = sof_ipc3_switch_get, .enum_put = sof_ipc3_enum_put, .enum_get = sof_ipc3_enum_get, .bytes_put = sof_ipc3_bytes_put, .bytes_get = sof_ipc3_bytes_get, .bytes_ext_put = sof_ipc3_bytes_ext_put, .bytes_ext_get = sof_ipc3_bytes_ext_get, .bytes_ext_volatile_get = sof_ipc3_bytes_ext_volatile_get, .update = sof_ipc3_control_update, .widget_kcontrol_setup = sof_ipc3_widget_kcontrol_setup, .set_up_volume_table = sof_ipc3_set_up_volume_table, }; |