summaryrefslogtreecommitdiffstats
path: root/sound/soc/sof/ipc4-control.c
blob: 9a71af1a613ac3800c9a5016de2a638cfac5d2d5 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
// 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) 2022 Intel Corporation. All rights reserved.
//
//

#include "sof-priv.h"
#include "sof-audio.h"
#include "ipc4-priv.h"
#include "ipc4-topology.h"

static int sof_ipc4_set_get_kcontrol_data(struct snd_sof_control *scontrol,
					  bool set, bool lock)
{
	struct sof_ipc4_control_data *cdata = scontrol->ipc_control_data;
	struct snd_soc_component *scomp = scontrol->scomp;
	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
	const struct sof_ipc_ops *iops = sdev->ipc->ops;
	struct sof_ipc4_msg *msg = &cdata->msg;
	struct snd_sof_widget *swidget;
	bool widget_found = false;
	int ret = 0;

	/* find widget associated with the control */
	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(scomp->dev, "Failed to find widget for kcontrol %s\n", scontrol->name);
		return -ENOENT;
	}

	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;

	msg->primary &= ~SOF_IPC4_MOD_INSTANCE_MASK;
	msg->primary |= SOF_IPC4_MOD_INSTANCE(swidget->instance_id);

	ret = iops->set_get_data(sdev, msg, msg->data_size, set);

unlock:
	if (lock)
		mutex_unlock(&swidget->setup_mutex);

	return ret;
}

static int
sof_ipc4_set_volume_data(struct snd_sof_dev *sdev, struct snd_sof_widget *swidget,
			 struct snd_sof_control *scontrol, bool lock)
{
	struct sof_ipc4_control_data *cdata = scontrol->ipc_control_data;
	struct sof_ipc4_gain *gain = swidget->private;
	struct sof_ipc4_msg *msg = &cdata->msg;
	struct sof_ipc4_gain_data data;
	bool all_channels_equal = true;
	u32 value;
	int ret, i;

	/* check if all channel values are equal */
	value = cdata->chanv[0].value;
	for (i = 1; i < scontrol->num_channels; i++) {
		if (cdata->chanv[i].value != value) {
			all_channels_equal = false;
			break;
		}
	}

	/*
	 * notify DSP with a single IPC message if all channel values are equal. Otherwise send
	 * a separate IPC for each channel.
	 */
	for (i = 0; i < scontrol->num_channels; i++) {
		if (all_channels_equal) {
			data.channels = SOF_IPC4_GAIN_ALL_CHANNELS_MASK;
			data.init_val = cdata->chanv[0].value;
		} else {
			data.channels = cdata->chanv[i].channel;
			data.init_val = cdata->chanv[i].value;
		}

		/* set curve type and duration from topology */
		data.curve_duration_l = gain->data.curve_duration_l;
		data.curve_duration_h = gain->data.curve_duration_h;
		data.curve_type = gain->data.curve_type;

		msg->data_ptr = &data;
		msg->data_size = sizeof(data);

		ret = sof_ipc4_set_get_kcontrol_data(scontrol, true, lock);
		msg->data_ptr = NULL;
		msg->data_size = 0;
		if (ret < 0) {
			dev_err(sdev->dev, "Failed to set volume update for %s\n",
				scontrol->name);
			return ret;
		}

		if (all_channels_equal)
			break;
	}

	return 0;
}

static bool sof_ipc4_volume_put(struct snd_sof_control *scontrol,
				struct snd_ctl_elem_value *ucontrol)
{
	struct sof_ipc4_control_data *cdata = scontrol->ipc_control_data;
	struct snd_soc_component *scomp = scontrol->scomp;
	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
	unsigned int channels = scontrol->num_channels;
	struct snd_sof_widget *swidget;
	bool widget_found = false;
	bool change = false;
	unsigned int i;
	int ret;

	/* 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;
	}

	if (!pm_runtime_active(scomp->dev))
		return change;

	/* find widget associated with the control */
	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(scomp->dev, "Failed to find widget for kcontrol %s\n", scontrol->name);
		return false;
	}

	ret = sof_ipc4_set_volume_data(sdev, swidget, scontrol, true);
	if (ret < 0)
		return false;

	return change;
}

static int sof_ipc4_volume_get(struct snd_sof_control *scontrol,
			       struct snd_ctl_elem_value *ucontrol)
{
	struct sof_ipc4_control_data *cdata = scontrol->ipc_control_data;
	unsigned int channels = scontrol->num_channels;
	unsigned int i;

	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;
}

/* set up all controls for the widget */
static int sof_ipc4_widget_kcontrol_setup(struct snd_sof_dev *sdev, struct snd_sof_widget *swidget)
{
	struct snd_sof_control *scontrol;
	int ret;

	list_for_each_entry(scontrol, &sdev->kcontrol_list, list)
		if (scontrol->comp_id == swidget->comp_id) {
			ret = sof_ipc4_set_volume_data(sdev, swidget, scontrol, false);
			if (ret < 0) {
				dev_err(sdev->dev, "%s: kcontrol %d set up failed for widget %s\n",
					__func__, scontrol->comp_id, swidget->widget->name);
				return ret;
			}
		}

	return 0;
}

static int
sof_ipc4_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++) {
		u32 val = vol_compute_gain(i, tlv);
		u64 q31val = ((u64)val) << 15; /* Can be over Q1.31, need to saturate */

		scontrol->volume_table[i] = q31val > SOF_IPC4_VOL_ZERO_DB ?
						SOF_IPC4_VOL_ZERO_DB : q31val;
	}

	return 0;
}

const struct sof_ipc_tplg_control_ops tplg_ipc4_control_ops = {
	.volume_put = sof_ipc4_volume_put,
	.volume_get = sof_ipc4_volume_get,
	.widget_kcontrol_setup = sof_ipc4_widget_kcontrol_setup,
	.set_up_volume_table = sof_ipc4_set_up_volume_table,
};