// 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_volume_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo){	struct soc_mixer_control *sm = (struct soc_mixer_control *)kcontrol->private_value;	struct snd_sof_control *scontrol = sm->dobj.private;	unsigned int channels = scontrol->num_channels;	int platform_max; 	if (!sm->platform_max)		sm->platform_max = sm->max;	platform_max = sm->platform_max; 	if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume"))		uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;	else		uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 	uinfo->count = channels;	uinfo->value.integer.min = 0;	uinfo->value.integer.max = platform_max - sm->min;	return 0;} 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(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(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(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(struct sof_abi_hdr));		ret = -EINVAL;		goto out;	} 	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) {		ret = -ENOSPC;		goto out;	} 	header.numid = scontrol->cmd;	header.length = data_size;	if (copy_to_user(tlvd, &header, sizeof(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(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(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 */

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