1 // SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
2 //
3 // This file is provided under a dual BSD/GPLv2 license. When using or
4 // redistributing this file, you may do so under either license.
5 //
6 // Copyright(c) 2018 Intel Corporation. All rights reserved.
7 //
8 // Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
9 //
10
11 /* Mixer Controls */
12
13 #include <linux/pm_runtime.h>
14 #include "sof-priv.h"
15
mixer_to_ipc(unsigned int value,u32 * volume_map,int size)16 static inline u32 mixer_to_ipc(unsigned int value, u32 *volume_map, int size)
17 {
18 if (value >= size)
19 return volume_map[size - 1];
20
21 return volume_map[value];
22 }
23
ipc_to_mixer(u32 value,u32 * volume_map,int size)24 static inline u32 ipc_to_mixer(u32 value, u32 *volume_map, int size)
25 {
26 int i;
27
28 for (i = 0; i < size; i++) {
29 if (volume_map[i] >= value)
30 return i;
31 }
32
33 return i - 1;
34 }
35
snd_sof_volume_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)36 int snd_sof_volume_get(struct snd_kcontrol *kcontrol,
37 struct snd_ctl_elem_value *ucontrol)
38 {
39 struct soc_mixer_control *sm =
40 (struct soc_mixer_control *)kcontrol->private_value;
41 struct snd_sof_control *scontrol = sm->dobj.private;
42 struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
43 unsigned int i, channels = scontrol->num_channels;
44
45 /* read back each channel */
46 for (i = 0; i < channels; i++)
47 ucontrol->value.integer.value[i] =
48 ipc_to_mixer(cdata->chanv[i].value,
49 scontrol->volume_table, sm->max + 1);
50
51 return 0;
52 }
53
snd_sof_volume_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)54 int snd_sof_volume_put(struct snd_kcontrol *kcontrol,
55 struct snd_ctl_elem_value *ucontrol)
56 {
57 struct soc_mixer_control *sm =
58 (struct soc_mixer_control *)kcontrol->private_value;
59 struct snd_sof_control *scontrol = sm->dobj.private;
60 struct snd_sof_dev *sdev = scontrol->sdev;
61 struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
62 unsigned int i, channels = scontrol->num_channels;
63 bool change = false;
64 u32 value;
65
66 /* update each channel */
67 for (i = 0; i < channels; i++) {
68 value = mixer_to_ipc(ucontrol->value.integer.value[i],
69 scontrol->volume_table, sm->max + 1);
70 change = change || (value != cdata->chanv[i].value);
71 cdata->chanv[i].channel = i;
72 cdata->chanv[i].value = value;
73 }
74
75 /* notify DSP of mixer updates */
76 if (pm_runtime_active(sdev->dev))
77 snd_sof_ipc_set_get_comp_data(sdev->ipc, scontrol,
78 SOF_IPC_COMP_SET_VALUE,
79 SOF_CTRL_TYPE_VALUE_CHAN_GET,
80 SOF_CTRL_CMD_VOLUME,
81 true);
82 return change;
83 }
84
snd_sof_switch_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)85 int snd_sof_switch_get(struct snd_kcontrol *kcontrol,
86 struct snd_ctl_elem_value *ucontrol)
87 {
88 struct soc_mixer_control *sm =
89 (struct soc_mixer_control *)kcontrol->private_value;
90 struct snd_sof_control *scontrol = sm->dobj.private;
91 struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
92 unsigned int i, channels = scontrol->num_channels;
93
94 /* read back each channel */
95 for (i = 0; i < channels; i++)
96 ucontrol->value.integer.value[i] = cdata->chanv[i].value;
97
98 return 0;
99 }
100
snd_sof_switch_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)101 int snd_sof_switch_put(struct snd_kcontrol *kcontrol,
102 struct snd_ctl_elem_value *ucontrol)
103 {
104 struct soc_mixer_control *sm =
105 (struct soc_mixer_control *)kcontrol->private_value;
106 struct snd_sof_control *scontrol = sm->dobj.private;
107 struct snd_sof_dev *sdev = scontrol->sdev;
108 struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
109 unsigned int i, channels = scontrol->num_channels;
110 bool change = false;
111 u32 value;
112
113 /* update each channel */
114 for (i = 0; i < channels; i++) {
115 value = ucontrol->value.integer.value[i];
116 change = change || (value != cdata->chanv[i].value);
117 cdata->chanv[i].channel = i;
118 cdata->chanv[i].value = value;
119 }
120
121 /* notify DSP of mixer updates */
122 if (pm_runtime_active(sdev->dev))
123 snd_sof_ipc_set_get_comp_data(sdev->ipc, scontrol,
124 SOF_IPC_COMP_SET_VALUE,
125 SOF_CTRL_TYPE_VALUE_CHAN_GET,
126 SOF_CTRL_CMD_SWITCH,
127 true);
128
129 return change;
130 }
131
snd_sof_enum_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)132 int snd_sof_enum_get(struct snd_kcontrol *kcontrol,
133 struct snd_ctl_elem_value *ucontrol)
134 {
135 struct soc_enum *se =
136 (struct soc_enum *)kcontrol->private_value;
137 struct snd_sof_control *scontrol = se->dobj.private;
138 struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
139 unsigned int i, channels = scontrol->num_channels;
140
141 /* read back each channel */
142 for (i = 0; i < channels; i++)
143 ucontrol->value.enumerated.item[i] = cdata->chanv[i].value;
144
145 return 0;
146 }
147
snd_sof_enum_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)148 int snd_sof_enum_put(struct snd_kcontrol *kcontrol,
149 struct snd_ctl_elem_value *ucontrol)
150 {
151 struct soc_enum *se =
152 (struct soc_enum *)kcontrol->private_value;
153 struct snd_sof_control *scontrol = se->dobj.private;
154 struct snd_sof_dev *sdev = scontrol->sdev;
155 struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
156 unsigned int i, channels = scontrol->num_channels;
157 bool change = false;
158 u32 value;
159
160 /* update each channel */
161 for (i = 0; i < channels; i++) {
162 value = ucontrol->value.enumerated.item[i];
163 change = change || (value != cdata->chanv[i].value);
164 cdata->chanv[i].channel = i;
165 cdata->chanv[i].value = value;
166 }
167
168 /* notify DSP of enum updates */
169 if (pm_runtime_active(sdev->dev))
170 snd_sof_ipc_set_get_comp_data(sdev->ipc, scontrol,
171 SOF_IPC_COMP_SET_VALUE,
172 SOF_CTRL_TYPE_VALUE_CHAN_GET,
173 SOF_CTRL_CMD_ENUM,
174 true);
175
176 return change;
177 }
178
snd_sof_bytes_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)179 int snd_sof_bytes_get(struct snd_kcontrol *kcontrol,
180 struct snd_ctl_elem_value *ucontrol)
181 {
182 struct soc_bytes_ext *be =
183 (struct soc_bytes_ext *)kcontrol->private_value;
184 struct snd_sof_control *scontrol = be->dobj.private;
185 struct snd_sof_dev *sdev = scontrol->sdev;
186 struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
187 struct sof_abi_hdr *data = cdata->data;
188 size_t size;
189 int ret = 0;
190
191 if (be->max > sizeof(ucontrol->value.bytes.data)) {
192 dev_err_ratelimited(sdev->dev,
193 "error: data max %d exceeds ucontrol data array size\n",
194 be->max);
195 return -EINVAL;
196 }
197
198 size = data->size + sizeof(*data);
199 if (size > be->max) {
200 dev_err_ratelimited(sdev->dev,
201 "error: DSP sent %zu bytes max is %d\n",
202 size, be->max);
203 ret = -EINVAL;
204 goto out;
205 }
206
207 /* copy back to kcontrol */
208 memcpy(ucontrol->value.bytes.data, data, size);
209
210 out:
211 return ret;
212 }
213
snd_sof_bytes_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)214 int snd_sof_bytes_put(struct snd_kcontrol *kcontrol,
215 struct snd_ctl_elem_value *ucontrol)
216 {
217 struct soc_bytes_ext *be =
218 (struct soc_bytes_ext *)kcontrol->private_value;
219 struct snd_sof_control *scontrol = be->dobj.private;
220 struct snd_sof_dev *sdev = scontrol->sdev;
221 struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
222 struct sof_abi_hdr *data = cdata->data;
223 size_t size = data->size + sizeof(*data);
224
225 if (be->max > sizeof(ucontrol->value.bytes.data)) {
226 dev_err_ratelimited(sdev->dev,
227 "error: data max %d exceeds ucontrol data array size\n",
228 be->max);
229 return -EINVAL;
230 }
231
232 if (size > be->max) {
233 dev_err_ratelimited(sdev->dev,
234 "error: size too big %zu bytes max is %d\n",
235 size, be->max);
236 return -EINVAL;
237 }
238
239 /* copy from kcontrol */
240 memcpy(data, ucontrol->value.bytes.data, size);
241
242 /* notify DSP of byte control updates */
243 if (pm_runtime_active(sdev->dev))
244 snd_sof_ipc_set_get_comp_data(sdev->ipc, scontrol,
245 SOF_IPC_COMP_SET_DATA,
246 SOF_CTRL_TYPE_DATA_SET,
247 scontrol->cmd,
248 true);
249
250 return 0;
251 }
252
snd_sof_bytes_ext_put(struct snd_kcontrol * kcontrol,const unsigned int __user * binary_data,unsigned int size)253 int snd_sof_bytes_ext_put(struct snd_kcontrol *kcontrol,
254 const unsigned int __user *binary_data,
255 unsigned int size)
256 {
257 struct soc_bytes_ext *be =
258 (struct soc_bytes_ext *)kcontrol->private_value;
259 struct snd_sof_control *scontrol = be->dobj.private;
260 struct snd_sof_dev *sdev = scontrol->sdev;
261 struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
262 struct snd_ctl_tlv header;
263 const struct snd_ctl_tlv __user *tlvd =
264 (const struct snd_ctl_tlv __user *)binary_data;
265
266 /*
267 * The beginning of bytes data contains a header from where
268 * the length (as bytes) is needed to know the correct copy
269 * length of data from tlvd->tlv.
270 */
271 if (copy_from_user(&header, tlvd, sizeof(const struct snd_ctl_tlv)))
272 return -EFAULT;
273
274 /* be->max is coming from topology */
275 if (header.length > be->max) {
276 dev_err_ratelimited(sdev->dev, "error: Bytes data size %d exceeds max %d.\n",
277 header.length, be->max);
278 return -EINVAL;
279 }
280
281 /* Check that header id matches the command */
282 if (header.numid != scontrol->cmd) {
283 dev_err_ratelimited(sdev->dev,
284 "error: incorrect numid %d\n",
285 header.numid);
286 return -EINVAL;
287 }
288
289 if (copy_from_user(cdata->data, tlvd->tlv, header.length))
290 return -EFAULT;
291
292 if (cdata->data->magic != SOF_ABI_MAGIC) {
293 dev_err_ratelimited(sdev->dev,
294 "error: Wrong ABI magic 0x%08x.\n",
295 cdata->data->magic);
296 return -EINVAL;
297 }
298
299 if (SOF_ABI_VERSION_INCOMPATIBLE(SOF_ABI_VERSION, cdata->data->abi)) {
300 dev_err_ratelimited(sdev->dev, "error: Incompatible ABI version 0x%08x.\n",
301 cdata->data->abi);
302 return -EINVAL;
303 }
304
305 if (cdata->data->size + sizeof(const struct sof_abi_hdr) > be->max) {
306 dev_err_ratelimited(sdev->dev, "error: Mismatch in ABI data size (truncated?).\n");
307 return -EINVAL;
308 }
309
310 /* notify DSP of byte control updates */
311 if (pm_runtime_active(sdev->dev))
312 snd_sof_ipc_set_get_comp_data(sdev->ipc, scontrol,
313 SOF_IPC_COMP_SET_DATA,
314 SOF_CTRL_TYPE_DATA_SET,
315 scontrol->cmd,
316 true);
317
318 return 0;
319 }
320
snd_sof_bytes_ext_get(struct snd_kcontrol * kcontrol,unsigned int __user * binary_data,unsigned int size)321 int snd_sof_bytes_ext_get(struct snd_kcontrol *kcontrol,
322 unsigned int __user *binary_data,
323 unsigned int size)
324 {
325 struct soc_bytes_ext *be =
326 (struct soc_bytes_ext *)kcontrol->private_value;
327 struct snd_sof_control *scontrol = be->dobj.private;
328 struct snd_sof_dev *sdev = scontrol->sdev;
329 struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
330 struct snd_ctl_tlv header;
331 struct snd_ctl_tlv __user *tlvd =
332 (struct snd_ctl_tlv __user *)binary_data;
333 int data_size;
334 int ret = 0;
335
336 /*
337 * Decrement the limit by ext bytes header size to
338 * ensure the user space buffer is not exceeded.
339 */
340 size -= sizeof(const struct snd_ctl_tlv);
341
342 /* set the ABI header values */
343 cdata->data->magic = SOF_ABI_MAGIC;
344 cdata->data->abi = SOF_ABI_VERSION;
345
346 /* Prevent read of other kernel data or possibly corrupt response */
347 data_size = cdata->data->size + sizeof(const struct sof_abi_hdr);
348
349 /* check data size doesn't exceed max coming from topology */
350 if (data_size > be->max) {
351 dev_err_ratelimited(sdev->dev, "error: user data size %d exceeds max size %d.\n",
352 data_size, be->max);
353 ret = -EINVAL;
354 goto out;
355 }
356
357 header.numid = scontrol->cmd;
358 header.length = data_size;
359 if (copy_to_user(tlvd, &header, sizeof(const struct snd_ctl_tlv))) {
360 ret = -EFAULT;
361 goto out;
362 }
363
364 if (copy_to_user(tlvd->tlv, cdata->data, data_size))
365 ret = -EFAULT;
366
367 out:
368 return ret;
369 }
370
