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-rw-r--r--sound/soc/intel/avs/control.c215
1 files changed, 215 insertions, 0 deletions
diff --git a/sound/soc/intel/avs/control.c b/sound/soc/intel/avs/control.c
new file mode 100644
index 000000000000..2e01dc75a15a
--- /dev/null
+++ b/sound/soc/intel/avs/control.c
@@ -0,0 +1,215 @@
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// Copyright(c) 2021-2022 Intel Corporation
+//
+// Authors: Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com>
+// Cezary Rojewski <cezary.rojewski@intel.com>
+//
+
+#include <linux/cleanup.h>
+#include <sound/soc.h>
+#include "avs.h"
+#include "control.h"
+#include "messages.h"
+#include "path.h"
+
+static struct avs_dev *avs_get_kcontrol_adev(struct snd_kcontrol *kcontrol)
+{
+ struct snd_soc_dapm_widget *w;
+
+ w = snd_soc_dapm_kcontrol_widget(kcontrol);
+
+ return to_avs_dev(w->dapm->component->dev);
+}
+
+static struct avs_path_module *avs_get_volume_module(struct avs_dev *adev, u32 id)
+{
+ struct avs_path *path;
+ struct avs_path_pipeline *ppl;
+ struct avs_path_module *mod;
+
+ spin_lock(&adev->path_list_lock);
+ list_for_each_entry(path, &adev->path_list, node) {
+ list_for_each_entry(ppl, &path->ppl_list, node) {
+ list_for_each_entry(mod, &ppl->mod_list, node) {
+ guid_t *type = &mod->template->cfg_ext->type;
+
+ if ((guid_equal(type, &AVS_PEAKVOL_MOD_UUID) ||
+ guid_equal(type, &AVS_GAIN_MOD_UUID)) &&
+ mod->template->ctl_id == id) {
+ spin_unlock(&adev->path_list_lock);
+ return mod;
+ }
+ }
+ }
+ }
+ spin_unlock(&adev->path_list_lock);
+
+ return NULL;
+}
+
+int avs_control_volume_get(struct snd_kcontrol *kctl, struct snd_ctl_elem_value *uctl)
+{
+ struct soc_mixer_control *mc = (struct soc_mixer_control *)kctl->private_value;
+ struct avs_control_data *ctl_data = mc->dobj.private;
+ struct avs_path_module *active_module;
+ struct avs_volume_cfg *dspvols;
+ struct avs_dev *adev;
+ size_t num_dspvols;
+ int ret, i;
+
+ adev = avs_get_kcontrol_adev(kctl);
+
+ /* Prevent access to modules while path is being constructed. */
+ guard(mutex)(&adev->path_mutex);
+
+ active_module = avs_get_volume_module(adev, ctl_data->id);
+ if (active_module) {
+ ret = avs_ipc_peakvol_get_volume(adev, active_module->module_id,
+ active_module->instance_id, &dspvols,
+ &num_dspvols);
+ if (ret)
+ return AVS_IPC_RET(ret);
+
+ /* Do not copy more than the control can store. */
+ num_dspvols = min_t(u32, num_dspvols, SND_SOC_TPLG_MAX_CHAN);
+ for (i = 0; i < num_dspvols; i++)
+ ctl_data->values[i] = dspvols[i].target_volume;
+ kfree(dspvols);
+ }
+
+ memcpy(uctl->value.integer.value, ctl_data->values, sizeof(ctl_data->values));
+ return 0;
+}
+
+int avs_control_volume_put(struct snd_kcontrol *kctl, struct snd_ctl_elem_value *uctl)
+{
+ struct avs_path_module *active_module;
+ struct avs_control_data *ctl_data;
+ struct soc_mixer_control *mc;
+ struct avs_dev *adev;
+ long *input;
+ int ret, i;
+
+ mc = (struct soc_mixer_control *)kctl->private_value;
+ ctl_data = mc->dobj.private;
+ adev = avs_get_kcontrol_adev(kctl);
+ input = uctl->value.integer.value;
+ i = 0;
+
+ /* mc->num_channels can be 0. */
+ do {
+ if (input[i] < mc->min || input[i] > mc->max)
+ return -EINVAL;
+ } while (++i < mc->num_channels);
+
+ if (!memcmp(ctl_data->values, input, sizeof(ctl_data->values)))
+ return 0;
+
+ /* Prevent access to modules while path is being constructed. */
+ guard(mutex)(&adev->path_mutex);
+
+ active_module = avs_get_volume_module(adev, ctl_data->id);
+ if (active_module) {
+ ret = avs_peakvol_set_volume(adev, active_module, mc, input);
+ if (ret)
+ return ret;
+ }
+
+ memcpy(ctl_data->values, input, sizeof(ctl_data->values));
+ return 1;
+}
+
+int avs_control_volume_info(struct snd_kcontrol *kctl, struct snd_ctl_elem_info *uinfo)
+{
+ struct soc_mixer_control *mc = (struct soc_mixer_control *)kctl->private_value;
+
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = max_t(u32, 1, mc->num_channels);
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = mc->max;
+ return 0;
+}
+
+int avs_control_mute_get(struct snd_kcontrol *kctl, struct snd_ctl_elem_value *uctl)
+{
+ struct soc_mixer_control *mc = (struct soc_mixer_control *)kctl->private_value;
+ struct avs_control_data *ctl_data = mc->dobj.private;
+ struct avs_path_module *active_module;
+ struct avs_mute_cfg *dspmutes;
+ struct avs_dev *adev;
+ size_t num_dspmutes;
+ int ret, i;
+
+ adev = avs_get_kcontrol_adev(kctl);
+
+ /* Prevent access to modules while path is being constructed. */
+ guard(mutex)(&adev->path_mutex);
+
+ active_module = avs_get_volume_module(adev, ctl_data->id);
+ if (active_module) {
+ ret = avs_ipc_peakvol_get_mute(adev, active_module->module_id,
+ active_module->instance_id, &dspmutes,
+ &num_dspmutes);
+ if (ret)
+ return AVS_IPC_RET(ret);
+
+ /* Do not copy more than the control can store. */
+ num_dspmutes = min_t(u32, num_dspmutes, SND_SOC_TPLG_MAX_CHAN);
+ for (i = 0; i < num_dspmutes; i++)
+ ctl_data->values[i] = !dspmutes[i].mute;
+ kfree(dspmutes);
+ }
+
+ memcpy(uctl->value.integer.value, ctl_data->values, sizeof(ctl_data->values));
+ return 0;
+}
+
+int avs_control_mute_put(struct snd_kcontrol *kctl, struct snd_ctl_elem_value *uctl)
+{
+ struct avs_path_module *active_module;
+ struct avs_control_data *ctl_data;
+ struct soc_mixer_control *mc;
+ struct avs_dev *adev;
+ long *input;
+ int ret, i;
+
+ mc = (struct soc_mixer_control *)kctl->private_value;
+ ctl_data = mc->dobj.private;
+ adev = avs_get_kcontrol_adev(kctl);
+ input = uctl->value.integer.value;
+ i = 0;
+
+ /* mc->num_channels can be 0. */
+ do {
+ if (input[i] < mc->min || input[i] > mc->max)
+ return -EINVAL;
+ } while (++i < mc->num_channels);
+
+ if (!memcmp(ctl_data->values, input, sizeof(ctl_data->values)))
+ return 0;
+
+ /* Prevent access to modules while path is being constructed. */
+ guard(mutex)(&adev->path_mutex);
+
+ active_module = avs_get_volume_module(adev, ctl_data->id);
+ if (active_module) {
+ ret = avs_peakvol_set_mute(adev, active_module, mc, input);
+ if (ret)
+ return ret;
+ }
+
+ memcpy(ctl_data->values, input, sizeof(ctl_data->values));
+ return 1;
+}
+
+int avs_control_mute_info(struct snd_kcontrol *kctl, struct snd_ctl_elem_info *uinfo)
+{
+ struct soc_mixer_control *mc = (struct soc_mixer_control *)kctl->private_value;
+
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+ uinfo->count = max_t(u32, 1, mc->num_channels);
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = mc->max;
+ return 0;
+}
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