2020-05-01 14:58:50 +00:00
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// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
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2019-04-12 16:05:07 +00:00
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//
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// This file is provided under a dual BSD/GPLv2 license. When using or
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// redistributing this file, you may do so under either license.
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//
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// Copyright(c) 2018 Intel Corporation. All rights reserved.
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//
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// Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
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//
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/* Mixer Controls */
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#include <linux/pm_runtime.h>
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2019-10-08 16:44:43 +00:00
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#include <linux/leds.h>
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2019-04-12 16:05:07 +00:00
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#include "sof-priv.h"
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2019-12-04 21:15:51 +00:00
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#include "sof-audio.h"
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2019-04-12 16:05:07 +00:00
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2019-10-08 16:44:43 +00:00
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static void update_mute_led(struct snd_sof_control *scontrol,
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struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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2020-04-30 09:11:39 +00:00
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int temp = 0;
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int mask;
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2019-10-08 16:44:43 +00:00
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int i;
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mask = 1U << snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
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for (i = 0; i < scontrol->num_channels; i++) {
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if (ucontrol->value.integer.value[i]) {
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temp |= mask;
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break;
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}
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}
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if (temp == scontrol->led_ctl.led_value)
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return;
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scontrol->led_ctl.led_value = temp;
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2019-10-14 09:13:08 +00:00
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#if IS_REACHABLE(CONFIG_LEDS_TRIGGER_AUDIO)
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2019-10-08 16:44:43 +00:00
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if (!scontrol->led_ctl.direction)
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ledtrig_audio_set(LED_AUDIO_MUTE, temp ? LED_OFF : LED_ON);
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else
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ledtrig_audio_set(LED_AUDIO_MICMUTE, temp ? LED_OFF : LED_ON);
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2019-10-14 09:13:08 +00:00
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#endif
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2019-10-08 16:44:43 +00:00
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}
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2019-04-12 16:05:07 +00:00
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static inline u32 mixer_to_ipc(unsigned int value, u32 *volume_map, int size)
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{
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if (value >= size)
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return volume_map[size - 1];
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return volume_map[value];
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}
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static inline u32 ipc_to_mixer(u32 value, u32 *volume_map, int size)
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{
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int i;
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for (i = 0; i < size; i++) {
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if (volume_map[i] >= value)
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return i;
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}
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return i - 1;
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}
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int snd_sof_volume_get(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct soc_mixer_control *sm =
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(struct soc_mixer_control *)kcontrol->private_value;
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struct snd_sof_control *scontrol = sm->dobj.private;
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struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
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unsigned int i, channels = scontrol->num_channels;
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/* read back each channel */
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for (i = 0; i < channels; i++)
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ucontrol->value.integer.value[i] =
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ipc_to_mixer(cdata->chanv[i].value,
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scontrol->volume_table, sm->max + 1);
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return 0;
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}
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int snd_sof_volume_put(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct soc_mixer_control *sm =
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(struct soc_mixer_control *)kcontrol->private_value;
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struct snd_sof_control *scontrol = sm->dobj.private;
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2019-12-04 21:15:51 +00:00
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struct snd_soc_component *scomp = scontrol->scomp;
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2019-04-12 16:05:07 +00:00
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struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
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unsigned int i, channels = scontrol->num_channels;
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2019-10-18 12:38:06 +00:00
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bool change = false;
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u32 value;
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2019-04-12 16:05:07 +00:00
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/* update each channel */
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for (i = 0; i < channels; i++) {
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2019-10-18 12:38:06 +00:00
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value = mixer_to_ipc(ucontrol->value.integer.value[i],
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2019-04-12 16:05:07 +00:00
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scontrol->volume_table, sm->max + 1);
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2019-10-18 12:38:06 +00:00
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change = change || (value != cdata->chanv[i].value);
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2019-04-12 16:05:07 +00:00
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cdata->chanv[i].channel = i;
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2019-10-18 12:38:06 +00:00
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cdata->chanv[i].value = value;
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2019-04-12 16:05:07 +00:00
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}
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/* notify DSP of mixer updates */
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2019-12-04 21:15:51 +00:00
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if (pm_runtime_active(scomp->dev))
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snd_sof_ipc_set_get_comp_data(scontrol,
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2019-06-12 17:01:48 +00:00
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SOF_IPC_COMP_SET_VALUE,
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SOF_CTRL_TYPE_VALUE_CHAN_GET,
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SOF_CTRL_CMD_VOLUME,
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true);
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2019-10-18 12:38:06 +00:00
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return change;
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2019-04-12 16:05:07 +00:00
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}
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int snd_sof_switch_get(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct soc_mixer_control *sm =
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(struct soc_mixer_control *)kcontrol->private_value;
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struct snd_sof_control *scontrol = sm->dobj.private;
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struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
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unsigned int i, channels = scontrol->num_channels;
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/* read back each channel */
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for (i = 0; i < channels; i++)
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ucontrol->value.integer.value[i] = cdata->chanv[i].value;
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return 0;
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}
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int snd_sof_switch_put(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct soc_mixer_control *sm =
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(struct soc_mixer_control *)kcontrol->private_value;
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struct snd_sof_control *scontrol = sm->dobj.private;
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2019-12-04 21:15:51 +00:00
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struct snd_soc_component *scomp = scontrol->scomp;
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2019-04-12 16:05:07 +00:00
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struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
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unsigned int i, channels = scontrol->num_channels;
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2019-10-18 12:38:06 +00:00
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bool change = false;
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u32 value;
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2019-04-12 16:05:07 +00:00
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/* update each channel */
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for (i = 0; i < channels; i++) {
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2019-10-18 12:38:06 +00:00
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value = ucontrol->value.integer.value[i];
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change = change || (value != cdata->chanv[i].value);
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2019-04-12 16:05:07 +00:00
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cdata->chanv[i].channel = i;
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2019-10-18 12:38:06 +00:00
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cdata->chanv[i].value = value;
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2019-04-12 16:05:07 +00:00
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}
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2019-10-08 16:44:43 +00:00
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if (scontrol->led_ctl.use_led)
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update_mute_led(scontrol, kcontrol, ucontrol);
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2019-04-12 16:05:07 +00:00
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/* notify DSP of mixer updates */
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2019-12-04 21:15:51 +00:00
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if (pm_runtime_active(scomp->dev))
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snd_sof_ipc_set_get_comp_data(scontrol,
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2019-06-12 17:01:48 +00:00
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SOF_IPC_COMP_SET_VALUE,
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SOF_CTRL_TYPE_VALUE_CHAN_GET,
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SOF_CTRL_CMD_SWITCH,
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true);
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2019-10-18 12:38:06 +00:00
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return change;
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2019-04-12 16:05:07 +00:00
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}
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int snd_sof_enum_get(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct soc_enum *se =
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(struct soc_enum *)kcontrol->private_value;
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struct snd_sof_control *scontrol = se->dobj.private;
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struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
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unsigned int i, channels = scontrol->num_channels;
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/* read back each channel */
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for (i = 0; i < channels; i++)
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ucontrol->value.enumerated.item[i] = cdata->chanv[i].value;
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return 0;
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}
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int snd_sof_enum_put(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct soc_enum *se =
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(struct soc_enum *)kcontrol->private_value;
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struct snd_sof_control *scontrol = se->dobj.private;
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2019-12-04 21:15:51 +00:00
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struct snd_soc_component *scomp = scontrol->scomp;
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2019-04-12 16:05:07 +00:00
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struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
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unsigned int i, channels = scontrol->num_channels;
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2019-10-18 12:38:06 +00:00
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bool change = false;
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u32 value;
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2019-04-12 16:05:07 +00:00
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/* update each channel */
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for (i = 0; i < channels; i++) {
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2019-10-18 12:38:06 +00:00
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value = ucontrol->value.enumerated.item[i];
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change = change || (value != cdata->chanv[i].value);
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2019-04-12 16:05:07 +00:00
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cdata->chanv[i].channel = i;
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2019-10-18 12:38:06 +00:00
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cdata->chanv[i].value = value;
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2019-04-12 16:05:07 +00:00
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}
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/* notify DSP of enum updates */
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2019-12-04 21:15:51 +00:00
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if (pm_runtime_active(scomp->dev))
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snd_sof_ipc_set_get_comp_data(scontrol,
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2019-06-12 17:01:48 +00:00
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SOF_IPC_COMP_SET_VALUE,
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SOF_CTRL_TYPE_VALUE_CHAN_GET,
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SOF_CTRL_CMD_ENUM,
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true);
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2019-10-18 12:38:06 +00:00
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return change;
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2019-04-12 16:05:07 +00:00
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}
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int snd_sof_bytes_get(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct soc_bytes_ext *be =
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(struct soc_bytes_ext *)kcontrol->private_value;
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struct snd_sof_control *scontrol = be->dobj.private;
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2019-12-04 21:15:51 +00:00
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struct snd_soc_component *scomp = scontrol->scomp;
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2019-04-12 16:05:07 +00:00
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struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
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struct sof_abi_hdr *data = cdata->data;
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size_t size;
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if (be->max > sizeof(ucontrol->value.bytes.data)) {
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2019-12-04 21:15:51 +00:00
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dev_err_ratelimited(scomp->dev,
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2019-04-12 16:05:07 +00:00
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"error: data max %d exceeds ucontrol data array size\n",
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be->max);
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return -EINVAL;
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}
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2020-09-17 10:56:32 +00:00
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/* be->max has been verified to be >= sizeof(struct sof_abi_hdr) */
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if (data->size > be->max - sizeof(*data)) {
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2019-12-04 21:15:51 +00:00
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dev_err_ratelimited(scomp->dev,
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2020-09-17 10:56:32 +00:00
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"error: %u bytes of control data is invalid, max is %zu\n",
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data->size, be->max - sizeof(*data));
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2020-09-17 10:56:30 +00:00
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return -EINVAL;
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2019-04-12 16:05:07 +00:00
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}
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2020-09-17 10:56:32 +00:00
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size = data->size + sizeof(*data);
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2019-04-12 16:05:07 +00:00
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/* copy back to kcontrol */
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memcpy(ucontrol->value.bytes.data, data, size);
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2020-09-17 10:56:30 +00:00
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return 0;
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2019-04-12 16:05:07 +00:00
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}
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int snd_sof_bytes_put(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct soc_bytes_ext *be =
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(struct soc_bytes_ext *)kcontrol->private_value;
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struct snd_sof_control *scontrol = be->dobj.private;
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2019-12-04 21:15:51 +00:00
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struct snd_soc_component *scomp = scontrol->scomp;
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2019-04-12 16:05:07 +00:00
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struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
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struct sof_abi_hdr *data = cdata->data;
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2020-09-17 10:56:32 +00:00
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size_t size;
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2019-04-12 16:05:07 +00:00
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if (be->max > sizeof(ucontrol->value.bytes.data)) {
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2019-12-04 21:15:51 +00:00
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dev_err_ratelimited(scomp->dev,
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2019-04-12 16:05:07 +00:00
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"error: data max %d exceeds ucontrol data array size\n",
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be->max);
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return -EINVAL;
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}
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2020-09-17 10:56:32 +00:00
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/* be->max has been verified to be >= sizeof(struct sof_abi_hdr) */
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if (data->size > be->max - sizeof(*data)) {
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2019-12-04 21:15:51 +00:00
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dev_err_ratelimited(scomp->dev,
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2020-09-17 10:56:32 +00:00
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"error: data size too big %u bytes max is %zu\n",
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data->size, be->max - sizeof(*data));
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2019-04-12 16:05:07 +00:00
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return -EINVAL;
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}
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2020-09-17 10:56:32 +00:00
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size = data->size + sizeof(*data);
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2019-04-12 16:05:07 +00:00
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/* copy from kcontrol */
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2019-05-24 19:09:22 +00:00
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memcpy(data, ucontrol->value.bytes.data, size);
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2019-04-12 16:05:07 +00:00
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/* notify DSP of byte control updates */
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2019-12-04 21:15:51 +00:00
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if (pm_runtime_active(scomp->dev))
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snd_sof_ipc_set_get_comp_data(scontrol,
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2019-06-12 17:01:48 +00:00
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SOF_IPC_COMP_SET_DATA,
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SOF_CTRL_TYPE_DATA_SET,
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scontrol->cmd,
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true);
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return 0;
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2019-04-12 16:05:07 +00:00
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}
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int snd_sof_bytes_ext_put(struct snd_kcontrol *kcontrol,
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const unsigned int __user *binary_data,
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unsigned int size)
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{
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struct soc_bytes_ext *be =
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(struct soc_bytes_ext *)kcontrol->private_value;
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struct snd_sof_control *scontrol = be->dobj.private;
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2019-12-04 21:15:51 +00:00
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struct snd_soc_component *scomp = scontrol->scomp;
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2019-04-12 16:05:07 +00:00
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struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
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struct snd_ctl_tlv header;
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const struct snd_ctl_tlv __user *tlvd =
|
|
|
|
(const struct snd_ctl_tlv __user *)binary_data;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 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;
|
|
|
|
|
|
|
|
/* be->max is coming from topology */
|
|
|
|
if (header.length > be->max) {
|
2019-12-04 21:15:51 +00:00
|
|
|
dev_err_ratelimited(scomp->dev, "error: Bytes data size %d exceeds max %d.\n",
|
2019-04-12 16:05:07 +00:00
|
|
|
header.length, be->max);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Check that header id matches the command */
|
|
|
|
if (header.numid != scontrol->cmd) {
|
2019-12-04 21:15:51 +00:00
|
|
|
dev_err_ratelimited(scomp->dev,
|
2019-04-12 16:05:07 +00:00
|
|
|
"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) {
|
2019-12-04 21:15:51 +00:00
|
|
|
dev_err_ratelimited(scomp->dev,
|
2019-04-12 16:05:07 +00:00
|
|
|
"error: Wrong ABI magic 0x%08x.\n",
|
|
|
|
cdata->data->magic);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (SOF_ABI_VERSION_INCOMPATIBLE(SOF_ABI_VERSION, cdata->data->abi)) {
|
2019-12-04 21:15:51 +00:00
|
|
|
dev_err_ratelimited(scomp->dev, "error: Incompatible ABI version 0x%08x.\n",
|
2019-04-12 16:05:07 +00:00
|
|
|
cdata->data->abi);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
2020-09-17 10:56:32 +00:00
|
|
|
/* be->max has been verified to be >= sizeof(struct sof_abi_hdr) */
|
|
|
|
if (cdata->data->size > be->max - sizeof(const struct sof_abi_hdr)) {
|
2019-12-04 21:15:51 +00:00
|
|
|
dev_err_ratelimited(scomp->dev, "error: Mismatch in ABI data size (truncated?).\n");
|
2019-04-12 16:05:07 +00:00
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* notify DSP of byte control updates */
|
2019-12-04 21:15:51 +00:00
|
|
|
if (pm_runtime_active(scomp->dev))
|
|
|
|
snd_sof_ipc_set_get_comp_data(scontrol,
|
2019-06-12 17:01:48 +00:00
|
|
|
SOF_IPC_COMP_SET_DATA,
|
|
|
|
SOF_CTRL_TYPE_DATA_SET,
|
|
|
|
scontrol->cmd,
|
|
|
|
true);
|
2019-04-12 16:05:07 +00:00
|
|
|
|
2019-06-12 17:01:48 +00:00
|
|
|
return 0;
|
2019-04-12 16:05:07 +00:00
|
|
|
}
|
|
|
|
|
2020-09-08 09:28:25 +00:00
|
|
|
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;
|
|
|
|
|
2020-09-21 11:08:11 +00:00
|
|
|
/*
|
|
|
|
* 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);
|
|
|
|
|
2020-09-08 09:28:25 +00:00
|
|
|
ret = pm_runtime_get_sync(scomp->dev);
|
2020-09-17 10:56:29 +00:00
|
|
|
if (ret < 0 && ret != -EACCES) {
|
2020-09-08 09:28:25 +00:00
|
|
|
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);
|
|
|
|
|
2020-09-21 11:08:11 +00:00
|
|
|
/* make sure we don't exceed size provided by user space for data */
|
|
|
|
if (data_size > size) {
|
|
|
|
ret = -ENOSPC;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
2020-09-08 09:28:25 +00:00
|
|
|
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;
|
|
|
|
}
|
|
|
|
|
2019-04-12 16:05:07 +00:00
|
|
|
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;
|
2019-12-04 21:15:51 +00:00
|
|
|
struct snd_soc_component *scomp = scontrol->scomp;
|
2019-04-12 16:05:07 +00:00
|
|
|
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;
|
2020-09-17 10:56:32 +00:00
|
|
|
size_t data_size;
|
2019-04-12 16:05:07 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Decrement the limit by ext bytes header size to
|
|
|
|
* ensure the user space buffer is not exceeded.
|
|
|
|
*/
|
2020-09-21 11:08:10 +00:00
|
|
|
if (size < sizeof(struct snd_ctl_tlv))
|
|
|
|
return -ENOSPC;
|
|
|
|
size -= sizeof(struct snd_ctl_tlv);
|
2019-04-12 16:05:07 +00:00
|
|
|
|
|
|
|
/* 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 */
|
2020-09-17 10:56:32 +00:00
|
|
|
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));
|
2020-09-17 10:56:30 +00:00
|
|
|
return -EINVAL;
|
2019-04-12 16:05:07 +00:00
|
|
|
}
|
|
|
|
|
2020-09-17 10:56:32 +00:00
|
|
|
data_size = cdata->data->size + sizeof(const struct sof_abi_hdr);
|
|
|
|
|
2020-09-21 11:08:10 +00:00
|
|
|
/* make sure we don't exceed size provided by user space for data */
|
|
|
|
if (data_size > size)
|
|
|
|
return -ENOSPC;
|
|
|
|
|
2019-04-12 16:05:07 +00:00
|
|
|
header.numid = scontrol->cmd;
|
|
|
|
header.length = data_size;
|
2020-09-17 10:56:30 +00:00
|
|
|
if (copy_to_user(tlvd, &header, sizeof(const struct snd_ctl_tlv)))
|
|
|
|
return -EFAULT;
|
2019-04-12 16:05:07 +00:00
|
|
|
|
|
|
|
if (copy_to_user(tlvd->tlv, cdata->data, data_size))
|
2020-09-17 10:56:30 +00:00
|
|
|
return -EFAULT;
|
2019-04-12 16:05:07 +00:00
|
|
|
|
2020-09-17 10:56:30 +00:00
|
|
|
return 0;
|
2019-04-12 16:05:07 +00:00
|
|
|
}
|