1 // SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
2 // Copyright(c) 2024 Intel Corporation
3
4 /*
5 * The MIPI SDCA specification is available for public downloads at
6 * https://www.mipi.org/mipi-sdca-v1-0-download
7 */
8
9 #define dev_fmt(fmt) "%s: " fmt, __func__
10
11 #include <linux/acpi.h>
12 #include <linux/byteorder/generic.h>
13 #include <linux/cleanup.h>
14 #include <linux/device.h>
15 #include <linux/dev_printk.h>
16 #include <linux/module.h>
17 #include <linux/property.h>
18 #include <linux/soundwire/sdw.h>
19 #include <linux/types.h>
20 #include <sound/sdca.h>
21 #include <sound/sdca_function.h>
22 #include <sound/sdca_hid.h>
23
24 /*
25 * Should be long enough to encompass all the MIPI DisCo properties.
26 */
27 #define SDCA_PROPERTY_LENGTH 64
28
patch_sdca_function_type(u32 interface_revision,u32 * function_type)29 static int patch_sdca_function_type(u32 interface_revision, u32 *function_type)
30 {
31 /*
32 * Unfortunately early SDCA specifications used different indices for Functions,
33 * for backwards compatibility we have to reorder the values found.
34 */
35 if (interface_revision < 0x0801) {
36 switch (*function_type) {
37 case 1:
38 *function_type = SDCA_FUNCTION_TYPE_SMART_AMP;
39 break;
40 case 2:
41 *function_type = SDCA_FUNCTION_TYPE_SMART_MIC;
42 break;
43 case 3:
44 *function_type = SDCA_FUNCTION_TYPE_SPEAKER_MIC;
45 break;
46 case 4:
47 *function_type = SDCA_FUNCTION_TYPE_UAJ;
48 break;
49 case 5:
50 *function_type = SDCA_FUNCTION_TYPE_RJ;
51 break;
52 case 6:
53 *function_type = SDCA_FUNCTION_TYPE_HID;
54 break;
55 default:
56 return -EINVAL;
57 }
58 }
59
60 return 0;
61 }
62
get_sdca_function_name(u32 function_type)63 static const char *get_sdca_function_name(u32 function_type)
64 {
65 switch (function_type) {
66 case SDCA_FUNCTION_TYPE_SMART_AMP:
67 return SDCA_FUNCTION_TYPE_SMART_AMP_NAME;
68 case SDCA_FUNCTION_TYPE_SMART_MIC:
69 return SDCA_FUNCTION_TYPE_SMART_MIC_NAME;
70 case SDCA_FUNCTION_TYPE_UAJ:
71 return SDCA_FUNCTION_TYPE_UAJ_NAME;
72 case SDCA_FUNCTION_TYPE_HID:
73 return SDCA_FUNCTION_TYPE_HID_NAME;
74 case SDCA_FUNCTION_TYPE_SIMPLE_AMP:
75 return SDCA_FUNCTION_TYPE_SIMPLE_AMP_NAME;
76 case SDCA_FUNCTION_TYPE_SIMPLE_MIC:
77 return SDCA_FUNCTION_TYPE_SIMPLE_MIC_NAME;
78 case SDCA_FUNCTION_TYPE_SPEAKER_MIC:
79 return SDCA_FUNCTION_TYPE_SPEAKER_MIC_NAME;
80 case SDCA_FUNCTION_TYPE_RJ:
81 return SDCA_FUNCTION_TYPE_RJ_NAME;
82 case SDCA_FUNCTION_TYPE_IMP_DEF:
83 return SDCA_FUNCTION_TYPE_IMP_DEF_NAME;
84 default:
85 return NULL;
86 }
87 }
88
find_sdca_function(struct acpi_device * adev,void * data)89 static int find_sdca_function(struct acpi_device *adev, void *data)
90 {
91 struct fwnode_handle *function_node = acpi_fwnode_handle(adev);
92 struct sdca_device_data *sdca_data = data;
93 struct sdw_slave *slave = container_of(sdca_data, struct sdw_slave, sdca_data);
94 struct device *dev = &adev->dev;
95 struct fwnode_handle *control5; /* used to identify function type */
96 const char *function_name;
97 u32 function_type;
98 int function_index;
99 u64 addr;
100 int ret;
101
102 if (sdca_data->num_functions >= SDCA_MAX_FUNCTION_COUNT) {
103 dev_err(dev, "maximum number of functions exceeded\n");
104 return -EINVAL;
105 }
106
107 ret = acpi_get_local_u64_address(adev->handle, &addr);
108 if (ret < 0)
109 return ret;
110
111 if (!addr || addr > 0x7) {
112 dev_err(dev, "invalid addr: 0x%llx\n", addr);
113 return -ENODEV;
114 }
115
116 /*
117 * Extracting the topology type for an SDCA function is a
118 * convoluted process.
119 * The Function type is only visible as a result of a read
120 * from a control. In theory this would mean reading from the hardware,
121 * but the SDCA/DisCo specs defined the notion of "DC value" - a constant
122 * represented with a DSD subproperty.
123 * Drivers have to query the properties for the control
124 * SDCA_CONTROL_ENTITY_0_FUNCTION_TOPOLOGY (0x05)
125 */
126 control5 = fwnode_get_named_child_node(function_node,
127 "mipi-sdca-control-0x5-subproperties");
128 if (!control5)
129 return -ENODEV;
130
131 ret = fwnode_property_read_u32(control5, "mipi-sdca-control-dc-value",
132 &function_type);
133
134 fwnode_handle_put(control5);
135
136 if (ret < 0) {
137 dev_err(dev, "function type only supported as DisCo constant\n");
138 return ret;
139 }
140
141 if (!sdca_device_quirk_match(slave, SDCA_QUIRKS_SKIP_FUNC_TYPE_PATCHING)) {
142 ret = patch_sdca_function_type(sdca_data->interface_revision, &function_type);
143 if (ret < 0) {
144 dev_err(dev, "SDCA version %#x invalid function type %d\n",
145 sdca_data->interface_revision, function_type);
146 return ret;
147 }
148 }
149
150 function_name = get_sdca_function_name(function_type);
151 if (!function_name) {
152 dev_err(dev, "invalid SDCA function type %d\n", function_type);
153 return -EINVAL;
154 }
155
156 dev_info(dev, "SDCA function %s (type %d) at 0x%llx\n",
157 function_name, function_type, addr);
158
159 /* store results */
160 function_index = sdca_data->num_functions;
161 sdca_data->function[function_index].adr = addr;
162 sdca_data->function[function_index].type = function_type;
163 sdca_data->function[function_index].name = function_name;
164 sdca_data->function[function_index].node = function_node;
165 sdca_data->num_functions++;
166
167 return 0;
168 }
169
170 /**
171 * sdca_lookup_functions - Parse sdca_device_desc for each Function
172 * @slave: SoundWire slave device to be processed.
173 *
174 * Iterate through the available SDCA Functions and fill in a short
175 * descriptor (struct sdca_function_desc) for each function, this
176 * information is stored along with the SoundWire slave device and
177 * used for adding drivers and quirks before the devices have fully
178 * probed.
179 */
sdca_lookup_functions(struct sdw_slave * slave)180 void sdca_lookup_functions(struct sdw_slave *slave)
181 {
182 struct device *dev = &slave->dev;
183 struct acpi_device *adev = to_acpi_device_node(dev->fwnode);
184
185 if (!adev) {
186 dev_info(dev, "no matching ACPI device found, ignoring peripheral\n");
187 return;
188 }
189
190 acpi_dev_for_each_child(adev, find_sdca_function, &slave->sdca_data);
191 }
192 EXPORT_SYMBOL_NS(sdca_lookup_functions, "SND_SOC_SDCA");
193
194 struct raw_init_write {
195 __le32 addr;
196 u8 val;
197 } __packed;
198
find_sdca_init_table(struct device * dev,struct fwnode_handle * function_node,struct sdca_function_data * function)199 static int find_sdca_init_table(struct device *dev,
200 struct fwnode_handle *function_node,
201 struct sdca_function_data *function)
202 {
203 struct raw_init_write *raw __free(kfree) = NULL;
204 struct sdca_init_write *init_write;
205 int i, num_init_writes;
206
207 num_init_writes = fwnode_property_count_u8(function_node,
208 "mipi-sdca-function-initialization-table");
209 if (!num_init_writes || num_init_writes == -EINVAL) {
210 return 0;
211 } else if (num_init_writes < 0) {
212 dev_err(dev, "%pfwP: failed to read initialization table: %d\n",
213 function_node, num_init_writes);
214 return num_init_writes;
215 } else if (num_init_writes % sizeof(*raw) != 0) {
216 dev_err(dev, "%pfwP: init table size invalid\n", function_node);
217 return -EINVAL;
218 } else if ((num_init_writes / sizeof(*raw)) > SDCA_MAX_INIT_COUNT) {
219 dev_err(dev, "%pfwP: maximum init table size exceeded\n", function_node);
220 return -EINVAL;
221 }
222
223 raw = kzalloc(num_init_writes, GFP_KERNEL);
224 if (!raw)
225 return -ENOMEM;
226
227 fwnode_property_read_u8_array(function_node,
228 "mipi-sdca-function-initialization-table",
229 (u8 *)raw, num_init_writes);
230
231 num_init_writes /= sizeof(*raw);
232
233 init_write = devm_kcalloc(dev, num_init_writes, sizeof(*init_write), GFP_KERNEL);
234 if (!init_write)
235 return -ENOMEM;
236
237 for (i = 0; i < num_init_writes; i++) {
238 init_write[i].addr = le32_to_cpu(raw[i].addr);
239 init_write[i].val = raw[i].val;
240 }
241
242 function->num_init_table = num_init_writes;
243 function->init_table = init_write;
244
245 return 0;
246 }
247
find_sdca_control_label(struct device * dev,const struct sdca_entity * entity,const struct sdca_control * control)248 static const char *find_sdca_control_label(struct device *dev,
249 const struct sdca_entity *entity,
250 const struct sdca_control *control)
251 {
252 switch (SDCA_CTL_TYPE(entity->type, control->sel)) {
253 case SDCA_CTL_TYPE_S(IT, MIC_BIAS):
254 return SDCA_CTL_MIC_BIAS_NAME;
255 case SDCA_CTL_TYPE_S(IT, USAGE):
256 case SDCA_CTL_TYPE_S(OT, USAGE):
257 return SDCA_CTL_USAGE_NAME;
258 case SDCA_CTL_TYPE_S(IT, LATENCY):
259 case SDCA_CTL_TYPE_S(OT, LATENCY):
260 case SDCA_CTL_TYPE_S(MU, LATENCY):
261 case SDCA_CTL_TYPE_S(SU, LATENCY):
262 case SDCA_CTL_TYPE_S(FU, LATENCY):
263 case SDCA_CTL_TYPE_S(XU, LATENCY):
264 case SDCA_CTL_TYPE_S(CRU, LATENCY):
265 case SDCA_CTL_TYPE_S(UDMPU, LATENCY):
266 case SDCA_CTL_TYPE_S(MFPU, LATENCY):
267 case SDCA_CTL_TYPE_S(SMPU, LATENCY):
268 case SDCA_CTL_TYPE_S(SAPU, LATENCY):
269 case SDCA_CTL_TYPE_S(PPU, LATENCY):
270 return SDCA_CTL_LATENCY_NAME;
271 case SDCA_CTL_TYPE_S(IT, CLUSTERINDEX):
272 case SDCA_CTL_TYPE_S(CRU, CLUSTERINDEX):
273 case SDCA_CTL_TYPE_S(UDMPU, CLUSTERINDEX):
274 case SDCA_CTL_TYPE_S(MFPU, CLUSTERINDEX):
275 return SDCA_CTL_CLUSTERINDEX_NAME;
276 case SDCA_CTL_TYPE_S(IT, DATAPORT_SELECTOR):
277 case SDCA_CTL_TYPE_S(OT, DATAPORT_SELECTOR):
278 return SDCA_CTL_DATAPORT_SELECTOR_NAME;
279 case SDCA_CTL_TYPE_S(IT, MATCHING_GUID):
280 case SDCA_CTL_TYPE_S(OT, MATCHING_GUID):
281 case SDCA_CTL_TYPE_S(ENTITY_0, MATCHING_GUID):
282 return SDCA_CTL_MATCHING_GUID_NAME;
283 case SDCA_CTL_TYPE_S(IT, KEEP_ALIVE):
284 case SDCA_CTL_TYPE_S(OT, KEEP_ALIVE):
285 return SDCA_CTL_KEEP_ALIVE_NAME;
286 case SDCA_CTL_TYPE_S(IT, NDAI_STREAM):
287 case SDCA_CTL_TYPE_S(OT, NDAI_STREAM):
288 return SDCA_CTL_NDAI_STREAM_NAME;
289 case SDCA_CTL_TYPE_S(IT, NDAI_CATEGORY):
290 case SDCA_CTL_TYPE_S(OT, NDAI_CATEGORY):
291 return SDCA_CTL_NDAI_CATEGORY_NAME;
292 case SDCA_CTL_TYPE_S(IT, NDAI_CODINGTYPE):
293 case SDCA_CTL_TYPE_S(OT, NDAI_CODINGTYPE):
294 return SDCA_CTL_NDAI_CODINGTYPE_NAME;
295 case SDCA_CTL_TYPE_S(IT, NDAI_PACKETTYPE):
296 case SDCA_CTL_TYPE_S(OT, NDAI_PACKETTYPE):
297 return SDCA_CTL_NDAI_PACKETTYPE_NAME;
298 case SDCA_CTL_TYPE_S(MU, MIXER):
299 return SDCA_CTL_MIXER_NAME;
300 case SDCA_CTL_TYPE_S(SU, SELECTOR):
301 return SDCA_CTL_SELECTOR_NAME;
302 case SDCA_CTL_TYPE_S(FU, MUTE):
303 return SDCA_CTL_MUTE_NAME;
304 case SDCA_CTL_TYPE_S(FU, CHANNEL_VOLUME):
305 return SDCA_CTL_CHANNEL_VOLUME_NAME;
306 case SDCA_CTL_TYPE_S(FU, AGC):
307 return SDCA_CTL_AGC_NAME;
308 case SDCA_CTL_TYPE_S(FU, BASS_BOOST):
309 return SDCA_CTL_BASS_BOOST_NAME;
310 case SDCA_CTL_TYPE_S(FU, LOUDNESS):
311 return SDCA_CTL_LOUDNESS_NAME;
312 case SDCA_CTL_TYPE_S(FU, GAIN):
313 return SDCA_CTL_GAIN_NAME;
314 case SDCA_CTL_TYPE_S(XU, BYPASS):
315 case SDCA_CTL_TYPE_S(MFPU, BYPASS):
316 return SDCA_CTL_BYPASS_NAME;
317 case SDCA_CTL_TYPE_S(XU, XU_ID):
318 return SDCA_CTL_XU_ID_NAME;
319 case SDCA_CTL_TYPE_S(XU, XU_VERSION):
320 return SDCA_CTL_XU_VERSION_NAME;
321 case SDCA_CTL_TYPE_S(XU, FDL_CURRENTOWNER):
322 return SDCA_CTL_FDL_CURRENTOWNER_NAME;
323 case SDCA_CTL_TYPE_S(XU, FDL_MESSAGEOFFSET):
324 return SDCA_CTL_FDL_MESSAGEOFFSET_NAME;
325 case SDCA_CTL_TYPE_S(XU, FDL_MESSAGELENGTH):
326 return SDCA_CTL_FDL_MESSAGELENGTH_NAME;
327 case SDCA_CTL_TYPE_S(XU, FDL_STATUS):
328 return SDCA_CTL_FDL_STATUS_NAME;
329 case SDCA_CTL_TYPE_S(XU, FDL_SET_INDEX):
330 return SDCA_CTL_FDL_SET_INDEX_NAME;
331 case SDCA_CTL_TYPE_S(XU, FDL_HOST_REQUEST):
332 return SDCA_CTL_FDL_HOST_REQUEST_NAME;
333 case SDCA_CTL_TYPE_S(CS, CLOCK_VALID):
334 return SDCA_CTL_CLOCK_VALID_NAME;
335 case SDCA_CTL_TYPE_S(CS, SAMPLERATEINDEX):
336 return SDCA_CTL_SAMPLERATEINDEX_NAME;
337 case SDCA_CTL_TYPE_S(CX, CLOCK_SELECT):
338 return SDCA_CTL_CLOCK_SELECT_NAME;
339 case SDCA_CTL_TYPE_S(PDE, REQUESTED_PS):
340 return SDCA_CTL_REQUESTED_PS_NAME;
341 case SDCA_CTL_TYPE_S(PDE, ACTUAL_PS):
342 return SDCA_CTL_ACTUAL_PS_NAME;
343 case SDCA_CTL_TYPE_S(GE, SELECTED_MODE):
344 return SDCA_CTL_SELECTED_MODE_NAME;
345 case SDCA_CTL_TYPE_S(GE, DETECTED_MODE):
346 return SDCA_CTL_DETECTED_MODE_NAME;
347 case SDCA_CTL_TYPE_S(SPE, PRIVATE):
348 return SDCA_CTL_PRIVATE_NAME;
349 case SDCA_CTL_TYPE_S(SPE, PRIVACY_POLICY):
350 return SDCA_CTL_PRIVACY_POLICY_NAME;
351 case SDCA_CTL_TYPE_S(SPE, PRIVACY_LOCKSTATE):
352 return SDCA_CTL_PRIVACY_LOCKSTATE_NAME;
353 case SDCA_CTL_TYPE_S(SPE, PRIVACY_OWNER):
354 return SDCA_CTL_PRIVACY_OWNER_NAME;
355 case SDCA_CTL_TYPE_S(SPE, AUTHTX_CURRENTOWNER):
356 return SDCA_CTL_AUTHTX_CURRENTOWNER_NAME;
357 case SDCA_CTL_TYPE_S(SPE, AUTHTX_MESSAGEOFFSET):
358 return SDCA_CTL_AUTHTX_MESSAGEOFFSET_NAME;
359 case SDCA_CTL_TYPE_S(SPE, AUTHTX_MESSAGELENGTH):
360 return SDCA_CTL_AUTHTX_MESSAGELENGTH_NAME;
361 case SDCA_CTL_TYPE_S(SPE, AUTHRX_CURRENTOWNER):
362 return SDCA_CTL_AUTHRX_CURRENTOWNER_NAME;
363 case SDCA_CTL_TYPE_S(SPE, AUTHRX_MESSAGEOFFSET):
364 return SDCA_CTL_AUTHRX_MESSAGEOFFSET_NAME;
365 case SDCA_CTL_TYPE_S(SPE, AUTHRX_MESSAGELENGTH):
366 return SDCA_CTL_AUTHRX_MESSAGELENGTH_NAME;
367 case SDCA_CTL_TYPE_S(UDMPU, ACOUSTIC_ENERGY_LEVEL_MONITOR):
368 return SDCA_CTL_ACOUSTIC_ENERGY_LEVEL_MONITOR_NAME;
369 case SDCA_CTL_TYPE_S(UDMPU, ULTRASOUND_LOOP_GAIN):
370 return SDCA_CTL_ULTRASOUND_LOOP_GAIN_NAME;
371 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_0):
372 return SDCA_CTL_OPAQUESET_0_NAME;
373 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_1):
374 return SDCA_CTL_OPAQUESET_1_NAME;
375 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_2):
376 return SDCA_CTL_OPAQUESET_2_NAME;
377 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_3):
378 return SDCA_CTL_OPAQUESET_3_NAME;
379 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_4):
380 return SDCA_CTL_OPAQUESET_4_NAME;
381 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_5):
382 return SDCA_CTL_OPAQUESET_5_NAME;
383 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_6):
384 return SDCA_CTL_OPAQUESET_6_NAME;
385 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_7):
386 return SDCA_CTL_OPAQUESET_7_NAME;
387 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_8):
388 return SDCA_CTL_OPAQUESET_8_NAME;
389 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_9):
390 return SDCA_CTL_OPAQUESET_9_NAME;
391 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_10):
392 return SDCA_CTL_OPAQUESET_10_NAME;
393 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_11):
394 return SDCA_CTL_OPAQUESET_11_NAME;
395 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_12):
396 return SDCA_CTL_OPAQUESET_12_NAME;
397 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_13):
398 return SDCA_CTL_OPAQUESET_13_NAME;
399 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_14):
400 return SDCA_CTL_OPAQUESET_14_NAME;
401 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_15):
402 return SDCA_CTL_OPAQUESET_15_NAME;
403 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_16):
404 return SDCA_CTL_OPAQUESET_16_NAME;
405 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_17):
406 return SDCA_CTL_OPAQUESET_17_NAME;
407 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_18):
408 return SDCA_CTL_OPAQUESET_18_NAME;
409 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_19):
410 return SDCA_CTL_OPAQUESET_19_NAME;
411 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_20):
412 return SDCA_CTL_OPAQUESET_20_NAME;
413 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_21):
414 return SDCA_CTL_OPAQUESET_21_NAME;
415 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_22):
416 return SDCA_CTL_OPAQUESET_22_NAME;
417 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_23):
418 return SDCA_CTL_OPAQUESET_23_NAME;
419 case SDCA_CTL_TYPE_S(MFPU, ALGORITHM_READY):
420 return SDCA_CTL_ALGORITHM_READY_NAME;
421 case SDCA_CTL_TYPE_S(MFPU, ALGORITHM_ENABLE):
422 return SDCA_CTL_ALGORITHM_ENABLE_NAME;
423 case SDCA_CTL_TYPE_S(MFPU, ALGORITHM_PREPARE):
424 return SDCA_CTL_ALGORITHM_PREPARE_NAME;
425 case SDCA_CTL_TYPE_S(MFPU, CENTER_FREQUENCY_INDEX):
426 return SDCA_CTL_CENTER_FREQUENCY_INDEX_NAME;
427 case SDCA_CTL_TYPE_S(MFPU, ULTRASOUND_LEVEL):
428 return SDCA_CTL_ULTRASOUND_LEVEL_NAME;
429 case SDCA_CTL_TYPE_S(MFPU, AE_NUMBER):
430 return SDCA_CTL_AE_NUMBER_NAME;
431 case SDCA_CTL_TYPE_S(MFPU, AE_CURRENTOWNER):
432 return SDCA_CTL_AE_CURRENTOWNER_NAME;
433 case SDCA_CTL_TYPE_S(MFPU, AE_MESSAGEOFFSET):
434 return SDCA_CTL_AE_MESSAGEOFFSET_NAME;
435 case SDCA_CTL_TYPE_S(MFPU, AE_MESSAGELENGTH):
436 return SDCA_CTL_AE_MESSAGELENGTH_NAME;
437 case SDCA_CTL_TYPE_S(SMPU, TRIGGER_ENABLE):
438 return SDCA_CTL_TRIGGER_ENABLE_NAME;
439 case SDCA_CTL_TYPE_S(SMPU, TRIGGER_STATUS):
440 return SDCA_CTL_TRIGGER_STATUS_NAME;
441 case SDCA_CTL_TYPE_S(SMPU, HIST_BUFFER_MODE):
442 return SDCA_CTL_HIST_BUFFER_MODE_NAME;
443 case SDCA_CTL_TYPE_S(SMPU, HIST_BUFFER_PREAMBLE):
444 return SDCA_CTL_HIST_BUFFER_PREAMBLE_NAME;
445 case SDCA_CTL_TYPE_S(SMPU, HIST_ERROR):
446 return SDCA_CTL_HIST_ERROR_NAME;
447 case SDCA_CTL_TYPE_S(SMPU, TRIGGER_EXTENSION):
448 return SDCA_CTL_TRIGGER_EXTENSION_NAME;
449 case SDCA_CTL_TYPE_S(SMPU, TRIGGER_READY):
450 return SDCA_CTL_TRIGGER_READY_NAME;
451 case SDCA_CTL_TYPE_S(SMPU, HIST_CURRENTOWNER):
452 return SDCA_CTL_HIST_CURRENTOWNER_NAME;
453 case SDCA_CTL_TYPE_S(SMPU, HIST_MESSAGEOFFSET):
454 return SDCA_CTL_HIST_MESSAGEOFFSET_NAME;
455 case SDCA_CTL_TYPE_S(SMPU, HIST_MESSAGELENGTH):
456 return SDCA_CTL_HIST_MESSAGELENGTH_NAME;
457 case SDCA_CTL_TYPE_S(SMPU, DTODTX_CURRENTOWNER):
458 return SDCA_CTL_DTODTX_CURRENTOWNER_NAME;
459 case SDCA_CTL_TYPE_S(SMPU, DTODTX_MESSAGEOFFSET):
460 return SDCA_CTL_DTODTX_MESSAGEOFFSET_NAME;
461 case SDCA_CTL_TYPE_S(SMPU, DTODTX_MESSAGELENGTH):
462 return SDCA_CTL_DTODTX_MESSAGELENGTH_NAME;
463 case SDCA_CTL_TYPE_S(SMPU, DTODRX_CURRENTOWNER):
464 return SDCA_CTL_DTODRX_CURRENTOWNER_NAME;
465 case SDCA_CTL_TYPE_S(SMPU, DTODRX_MESSAGEOFFSET):
466 return SDCA_CTL_DTODRX_MESSAGEOFFSET_NAME;
467 case SDCA_CTL_TYPE_S(SMPU, DTODRX_MESSAGELENGTH):
468 return SDCA_CTL_DTODRX_MESSAGELENGTH_NAME;
469 case SDCA_CTL_TYPE_S(SAPU, PROTECTION_MODE):
470 return SDCA_CTL_PROTECTION_MODE_NAME;
471 case SDCA_CTL_TYPE_S(SAPU, PROTECTION_STATUS):
472 return SDCA_CTL_PROTECTION_STATUS_NAME;
473 case SDCA_CTL_TYPE_S(SAPU, OPAQUESETREQ_INDEX):
474 return SDCA_CTL_OPAQUESETREQ_INDEX_NAME;
475 case SDCA_CTL_TYPE_S(SAPU, DTODTX_CURRENTOWNER):
476 return SDCA_CTL_DTODTX_CURRENTOWNER_NAME;
477 case SDCA_CTL_TYPE_S(SAPU, DTODTX_MESSAGEOFFSET):
478 return SDCA_CTL_DTODTX_MESSAGEOFFSET_NAME;
479 case SDCA_CTL_TYPE_S(SAPU, DTODTX_MESSAGELENGTH):
480 return SDCA_CTL_DTODTX_MESSAGELENGTH_NAME;
481 case SDCA_CTL_TYPE_S(SAPU, DTODRX_CURRENTOWNER):
482 return SDCA_CTL_DTODRX_CURRENTOWNER_NAME;
483 case SDCA_CTL_TYPE_S(SAPU, DTODRX_MESSAGEOFFSET):
484 return SDCA_CTL_DTODRX_MESSAGEOFFSET_NAME;
485 case SDCA_CTL_TYPE_S(SAPU, DTODRX_MESSAGELENGTH):
486 return SDCA_CTL_DTODRX_MESSAGELENGTH_NAME;
487 case SDCA_CTL_TYPE_S(PPU, POSTURENUMBER):
488 return SDCA_CTL_POSTURENUMBER_NAME;
489 case SDCA_CTL_TYPE_S(PPU, POSTUREEXTENSION):
490 return SDCA_CTL_POSTUREEXTENSION_NAME;
491 case SDCA_CTL_TYPE_S(PPU, HORIZONTALBALANCE):
492 return SDCA_CTL_HORIZONTALBALANCE_NAME;
493 case SDCA_CTL_TYPE_S(PPU, VERTICALBALANCE):
494 return SDCA_CTL_VERTICALBALANCE_NAME;
495 case SDCA_CTL_TYPE_S(TG, TONE_DIVIDER):
496 return SDCA_CTL_TONE_DIVIDER_NAME;
497 case SDCA_CTL_TYPE_S(HIDE, HIDTX_CURRENTOWNER):
498 return SDCA_CTL_HIDTX_CURRENTOWNER_NAME;
499 case SDCA_CTL_TYPE_S(HIDE, HIDTX_MESSAGEOFFSET):
500 return SDCA_CTL_HIDTX_MESSAGEOFFSET_NAME;
501 case SDCA_CTL_TYPE_S(HIDE, HIDTX_MESSAGELENGTH):
502 return SDCA_CTL_HIDTX_MESSAGELENGTH_NAME;
503 case SDCA_CTL_TYPE_S(HIDE, HIDRX_CURRENTOWNER):
504 return SDCA_CTL_HIDRX_CURRENTOWNER_NAME;
505 case SDCA_CTL_TYPE_S(HIDE, HIDRX_MESSAGEOFFSET):
506 return SDCA_CTL_HIDRX_MESSAGEOFFSET_NAME;
507 case SDCA_CTL_TYPE_S(HIDE, HIDRX_MESSAGELENGTH):
508 return SDCA_CTL_HIDRX_MESSAGELENGTH_NAME;
509 case SDCA_CTL_TYPE_S(ENTITY_0, COMMIT_GROUP_MASK):
510 return SDCA_CTL_COMMIT_GROUP_MASK_NAME;
511 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_SDCA_VERSION):
512 return SDCA_CTL_FUNCTION_SDCA_VERSION_NAME;
513 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_TYPE):
514 return SDCA_CTL_FUNCTION_TYPE_NAME;
515 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_MANUFACTURER_ID):
516 return SDCA_CTL_FUNCTION_MANUFACTURER_ID_NAME;
517 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_ID):
518 return SDCA_CTL_FUNCTION_ID_NAME;
519 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_VERSION):
520 return SDCA_CTL_FUNCTION_VERSION_NAME;
521 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_EXTENSION_ID):
522 return SDCA_CTL_FUNCTION_EXTENSION_ID_NAME;
523 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_EXTENSION_VERSION):
524 return SDCA_CTL_FUNCTION_EXTENSION_VERSION_NAME;
525 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_STATUS):
526 return SDCA_CTL_FUNCTION_STATUS_NAME;
527 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_ACTION):
528 return SDCA_CTL_FUNCTION_ACTION_NAME;
529 case SDCA_CTL_TYPE_S(ENTITY_0, DEVICE_MANUFACTURER_ID):
530 return SDCA_CTL_DEVICE_MANUFACTURER_ID_NAME;
531 case SDCA_CTL_TYPE_S(ENTITY_0, DEVICE_PART_ID):
532 return SDCA_CTL_DEVICE_PART_ID_NAME;
533 case SDCA_CTL_TYPE_S(ENTITY_0, DEVICE_VERSION):
534 return SDCA_CTL_DEVICE_VERSION_NAME;
535 case SDCA_CTL_TYPE_S(ENTITY_0, DEVICE_SDCA_VERSION):
536 return SDCA_CTL_DEVICE_SDCA_VERSION_NAME;
537 default:
538 return devm_kasprintf(dev, GFP_KERNEL, "Imp-Def %#x", control->sel);
539 }
540 }
541
find_sdca_control_bits(const struct sdca_entity * entity,const struct sdca_control * control)542 static unsigned int find_sdca_control_bits(const struct sdca_entity *entity,
543 const struct sdca_control *control)
544 {
545 switch (SDCA_CTL_TYPE(entity->type, control->sel)) {
546 case SDCA_CTL_TYPE_S(IT, LATENCY):
547 case SDCA_CTL_TYPE_S(OT, LATENCY):
548 case SDCA_CTL_TYPE_S(MU, LATENCY):
549 case SDCA_CTL_TYPE_S(SU, LATENCY):
550 case SDCA_CTL_TYPE_S(FU, LATENCY):
551 case SDCA_CTL_TYPE_S(XU, LATENCY):
552 case SDCA_CTL_TYPE_S(XU, FDL_MESSAGEOFFSET):
553 case SDCA_CTL_TYPE_S(XU, FDL_MESSAGELENGTH):
554 case SDCA_CTL_TYPE_S(SPE, AUTHTX_MESSAGEOFFSET):
555 case SDCA_CTL_TYPE_S(SPE, AUTHTX_MESSAGELENGTH):
556 case SDCA_CTL_TYPE_S(SPE, AUTHRX_MESSAGEOFFSET):
557 case SDCA_CTL_TYPE_S(SPE, AUTHRX_MESSAGELENGTH):
558 case SDCA_CTL_TYPE_S(CRU, LATENCY):
559 case SDCA_CTL_TYPE_S(UDMPU, LATENCY):
560 case SDCA_CTL_TYPE_S(MFPU, LATENCY):
561 case SDCA_CTL_TYPE_S(MFPU, AE_MESSAGEOFFSET):
562 case SDCA_CTL_TYPE_S(MFPU, AE_MESSAGELENGTH):
563 case SDCA_CTL_TYPE_S(SMPU, LATENCY):
564 case SDCA_CTL_TYPE_S(SMPU, HIST_MESSAGEOFFSET):
565 case SDCA_CTL_TYPE_S(SMPU, HIST_MESSAGELENGTH):
566 case SDCA_CTL_TYPE_S(SMPU, DTODTX_MESSAGEOFFSET):
567 case SDCA_CTL_TYPE_S(SMPU, DTODTX_MESSAGELENGTH):
568 case SDCA_CTL_TYPE_S(SMPU, DTODRX_MESSAGEOFFSET):
569 case SDCA_CTL_TYPE_S(SMPU, DTODRX_MESSAGELENGTH):
570 case SDCA_CTL_TYPE_S(SAPU, LATENCY):
571 case SDCA_CTL_TYPE_S(SAPU, DTODTX_MESSAGEOFFSET):
572 case SDCA_CTL_TYPE_S(SAPU, DTODTX_MESSAGELENGTH):
573 case SDCA_CTL_TYPE_S(SAPU, DTODRX_MESSAGEOFFSET):
574 case SDCA_CTL_TYPE_S(SAPU, DTODRX_MESSAGELENGTH):
575 case SDCA_CTL_TYPE_S(PPU, LATENCY):
576 case SDCA_CTL_TYPE_S(HIDE, HIDTX_MESSAGEOFFSET):
577 case SDCA_CTL_TYPE_S(HIDE, HIDTX_MESSAGELENGTH):
578 case SDCA_CTL_TYPE_S(HIDE, HIDRX_MESSAGEOFFSET):
579 case SDCA_CTL_TYPE_S(HIDE, HIDRX_MESSAGELENGTH):
580 return 32;
581 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_MANUFACTURER_ID):
582 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_ID):
583 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_EXTENSION_ID):
584 case SDCA_CTL_TYPE_S(ENTITY_0, DEVICE_MANUFACTURER_ID):
585 case SDCA_CTL_TYPE_S(ENTITY_0, DEVICE_PART_ID):
586 case SDCA_CTL_TYPE_S(IT, DATAPORT_SELECTOR):
587 case SDCA_CTL_TYPE_S(OT, DATAPORT_SELECTOR):
588 case SDCA_CTL_TYPE_S(MU, MIXER):
589 case SDCA_CTL_TYPE_S(FU, CHANNEL_VOLUME):
590 case SDCA_CTL_TYPE_S(FU, GAIN):
591 case SDCA_CTL_TYPE_S(XU, XU_ID):
592 case SDCA_CTL_TYPE_S(UDMPU, ACOUSTIC_ENERGY_LEVEL_MONITOR):
593 case SDCA_CTL_TYPE_S(UDMPU, ULTRASOUND_LOOP_GAIN):
594 case SDCA_CTL_TYPE_S(MFPU, ULTRASOUND_LEVEL):
595 case SDCA_CTL_TYPE_S(PPU, HORIZONTALBALANCE):
596 case SDCA_CTL_TYPE_S(PPU, VERTICALBALANCE):
597 return 16;
598 case SDCA_CTL_TYPE_S(FU, MUTE):
599 case SDCA_CTL_TYPE_S(FU, AGC):
600 case SDCA_CTL_TYPE_S(FU, BASS_BOOST):
601 case SDCA_CTL_TYPE_S(FU, LOUDNESS):
602 case SDCA_CTL_TYPE_S(XU, BYPASS):
603 case SDCA_CTL_TYPE_S(MFPU, BYPASS):
604 return 1;
605 default:
606 return 8;
607 }
608 }
609
610 static enum sdca_control_datatype
find_sdca_control_datatype(const struct sdca_entity * entity,const struct sdca_control * control)611 find_sdca_control_datatype(const struct sdca_entity *entity,
612 const struct sdca_control *control)
613 {
614 switch (SDCA_CTL_TYPE(entity->type, control->sel)) {
615 case SDCA_CTL_TYPE_S(XU, BYPASS):
616 case SDCA_CTL_TYPE_S(MFPU, BYPASS):
617 case SDCA_CTL_TYPE_S(FU, MUTE):
618 case SDCA_CTL_TYPE_S(FU, AGC):
619 case SDCA_CTL_TYPE_S(FU, BASS_BOOST):
620 case SDCA_CTL_TYPE_S(FU, LOUDNESS):
621 return SDCA_CTL_DATATYPE_ONEBIT;
622 case SDCA_CTL_TYPE_S(IT, LATENCY):
623 case SDCA_CTL_TYPE_S(OT, LATENCY):
624 case SDCA_CTL_TYPE_S(MU, LATENCY):
625 case SDCA_CTL_TYPE_S(SU, LATENCY):
626 case SDCA_CTL_TYPE_S(FU, LATENCY):
627 case SDCA_CTL_TYPE_S(XU, LATENCY):
628 case SDCA_CTL_TYPE_S(CRU, LATENCY):
629 case SDCA_CTL_TYPE_S(UDMPU, LATENCY):
630 case SDCA_CTL_TYPE_S(MFPU, LATENCY):
631 case SDCA_CTL_TYPE_S(SMPU, LATENCY):
632 case SDCA_CTL_TYPE_S(SAPU, LATENCY):
633 case SDCA_CTL_TYPE_S(PPU, LATENCY):
634 case SDCA_CTL_TYPE_S(SU, SELECTOR):
635 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_0):
636 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_1):
637 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_2):
638 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_3):
639 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_4):
640 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_5):
641 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_6):
642 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_7):
643 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_8):
644 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_9):
645 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_10):
646 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_11):
647 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_12):
648 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_13):
649 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_14):
650 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_15):
651 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_16):
652 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_17):
653 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_18):
654 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_19):
655 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_20):
656 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_21):
657 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_22):
658 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_23):
659 case SDCA_CTL_TYPE_S(SAPU, PROTECTION_MODE):
660 case SDCA_CTL_TYPE_S(SMPU, HIST_BUFFER_PREAMBLE):
661 case SDCA_CTL_TYPE_S(XU, FDL_HOST_REQUEST):
662 case SDCA_CTL_TYPE_S(XU, XU_ID):
663 case SDCA_CTL_TYPE_S(CX, CLOCK_SELECT):
664 case SDCA_CTL_TYPE_S(TG, TONE_DIVIDER):
665 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_MANUFACTURER_ID):
666 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_ID):
667 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_EXTENSION_ID):
668 case SDCA_CTL_TYPE_S(ENTITY_0, DEVICE_MANUFACTURER_ID):
669 case SDCA_CTL_TYPE_S(ENTITY_0, DEVICE_PART_ID):
670 case SDCA_CTL_TYPE_S(XU, FDL_MESSAGEOFFSET):
671 case SDCA_CTL_TYPE_S(XU, FDL_MESSAGELENGTH):
672 case SDCA_CTL_TYPE_S(SPE, AUTHTX_MESSAGEOFFSET):
673 case SDCA_CTL_TYPE_S(SPE, AUTHTX_MESSAGELENGTH):
674 case SDCA_CTL_TYPE_S(SPE, AUTHRX_MESSAGEOFFSET):
675 case SDCA_CTL_TYPE_S(SPE, AUTHRX_MESSAGELENGTH):
676 case SDCA_CTL_TYPE_S(MFPU, AE_MESSAGEOFFSET):
677 case SDCA_CTL_TYPE_S(MFPU, AE_MESSAGELENGTH):
678 case SDCA_CTL_TYPE_S(SMPU, HIST_MESSAGEOFFSET):
679 case SDCA_CTL_TYPE_S(SMPU, HIST_MESSAGELENGTH):
680 case SDCA_CTL_TYPE_S(SMPU, DTODTX_MESSAGEOFFSET):
681 case SDCA_CTL_TYPE_S(SMPU, DTODTX_MESSAGELENGTH):
682 case SDCA_CTL_TYPE_S(SMPU, DTODRX_MESSAGEOFFSET):
683 case SDCA_CTL_TYPE_S(SMPU, DTODRX_MESSAGELENGTH):
684 case SDCA_CTL_TYPE_S(SAPU, DTODTX_MESSAGEOFFSET):
685 case SDCA_CTL_TYPE_S(SAPU, DTODTX_MESSAGELENGTH):
686 case SDCA_CTL_TYPE_S(SAPU, DTODRX_MESSAGEOFFSET):
687 case SDCA_CTL_TYPE_S(SAPU, DTODRX_MESSAGELENGTH):
688 case SDCA_CTL_TYPE_S(HIDE, HIDTX_MESSAGEOFFSET):
689 case SDCA_CTL_TYPE_S(HIDE, HIDTX_MESSAGELENGTH):
690 case SDCA_CTL_TYPE_S(HIDE, HIDRX_MESSAGEOFFSET):
691 case SDCA_CTL_TYPE_S(HIDE, HIDRX_MESSAGELENGTH):
692 return SDCA_CTL_DATATYPE_INTEGER;
693 case SDCA_CTL_TYPE_S(IT, MIC_BIAS):
694 case SDCA_CTL_TYPE_S(SMPU, HIST_BUFFER_MODE):
695 case SDCA_CTL_TYPE_S(PDE, REQUESTED_PS):
696 case SDCA_CTL_TYPE_S(PDE, ACTUAL_PS):
697 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_TYPE):
698 return SDCA_CTL_DATATYPE_SPEC_ENCODED_VALUE;
699 case SDCA_CTL_TYPE_S(XU, XU_VERSION):
700 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_SDCA_VERSION):
701 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_VERSION):
702 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_EXTENSION_VERSION):
703 case SDCA_CTL_TYPE_S(ENTITY_0, DEVICE_VERSION):
704 case SDCA_CTL_TYPE_S(ENTITY_0, DEVICE_SDCA_VERSION):
705 return SDCA_CTL_DATATYPE_BCD;
706 case SDCA_CTL_TYPE_S(FU, CHANNEL_VOLUME):
707 case SDCA_CTL_TYPE_S(FU, GAIN):
708 case SDCA_CTL_TYPE_S(MU, MIXER):
709 case SDCA_CTL_TYPE_S(PPU, HORIZONTALBALANCE):
710 case SDCA_CTL_TYPE_S(PPU, VERTICALBALANCE):
711 case SDCA_CTL_TYPE_S(MFPU, ULTRASOUND_LEVEL):
712 case SDCA_CTL_TYPE_S(UDMPU, ACOUSTIC_ENERGY_LEVEL_MONITOR):
713 case SDCA_CTL_TYPE_S(UDMPU, ULTRASOUND_LOOP_GAIN):
714 return SDCA_CTL_DATATYPE_Q7P8DB;
715 case SDCA_CTL_TYPE_S(IT, USAGE):
716 case SDCA_CTL_TYPE_S(OT, USAGE):
717 case SDCA_CTL_TYPE_S(IT, CLUSTERINDEX):
718 case SDCA_CTL_TYPE_S(CRU, CLUSTERINDEX):
719 case SDCA_CTL_TYPE_S(UDMPU, CLUSTERINDEX):
720 case SDCA_CTL_TYPE_S(MFPU, CLUSTERINDEX):
721 case SDCA_CTL_TYPE_S(MFPU, CENTER_FREQUENCY_INDEX):
722 case SDCA_CTL_TYPE_S(MFPU, AE_NUMBER):
723 case SDCA_CTL_TYPE_S(SAPU, OPAQUESETREQ_INDEX):
724 case SDCA_CTL_TYPE_S(XU, FDL_SET_INDEX):
725 case SDCA_CTL_TYPE_S(CS, SAMPLERATEINDEX):
726 case SDCA_CTL_TYPE_S(GE, SELECTED_MODE):
727 case SDCA_CTL_TYPE_S(GE, DETECTED_MODE):
728 return SDCA_CTL_DATATYPE_BYTEINDEX;
729 case SDCA_CTL_TYPE_S(PPU, POSTURENUMBER):
730 return SDCA_CTL_DATATYPE_POSTURENUMBER;
731 case SDCA_CTL_TYPE_S(IT, DATAPORT_SELECTOR):
732 case SDCA_CTL_TYPE_S(OT, DATAPORT_SELECTOR):
733 return SDCA_CTL_DATATYPE_DP_INDEX;
734 case SDCA_CTL_TYPE_S(MFPU, ALGORITHM_READY):
735 case SDCA_CTL_TYPE_S(MFPU, ALGORITHM_ENABLE):
736 case SDCA_CTL_TYPE_S(MFPU, ALGORITHM_PREPARE):
737 case SDCA_CTL_TYPE_S(SAPU, PROTECTION_STATUS):
738 case SDCA_CTL_TYPE_S(SMPU, TRIGGER_ENABLE):
739 case SDCA_CTL_TYPE_S(SMPU, TRIGGER_STATUS):
740 case SDCA_CTL_TYPE_S(SMPU, TRIGGER_READY):
741 case SDCA_CTL_TYPE_S(SPE, PRIVACY_POLICY):
742 case SDCA_CTL_TYPE_S(SPE, PRIVACY_OWNER):
743 return SDCA_CTL_DATATYPE_BITINDEX;
744 case SDCA_CTL_TYPE_S(IT, KEEP_ALIVE):
745 case SDCA_CTL_TYPE_S(OT, KEEP_ALIVE):
746 case SDCA_CTL_TYPE_S(IT, NDAI_STREAM):
747 case SDCA_CTL_TYPE_S(OT, NDAI_STREAM):
748 case SDCA_CTL_TYPE_S(IT, NDAI_CATEGORY):
749 case SDCA_CTL_TYPE_S(OT, NDAI_CATEGORY):
750 case SDCA_CTL_TYPE_S(IT, NDAI_CODINGTYPE):
751 case SDCA_CTL_TYPE_S(OT, NDAI_CODINGTYPE):
752 case SDCA_CTL_TYPE_S(IT, NDAI_PACKETTYPE):
753 case SDCA_CTL_TYPE_S(OT, NDAI_PACKETTYPE):
754 case SDCA_CTL_TYPE_S(SMPU, HIST_ERROR):
755 case SDCA_CTL_TYPE_S(XU, FDL_STATUS):
756 case SDCA_CTL_TYPE_S(CS, CLOCK_VALID):
757 case SDCA_CTL_TYPE_S(SPE, PRIVACY_LOCKSTATE):
758 case SDCA_CTL_TYPE_S(ENTITY_0, COMMIT_GROUP_MASK):
759 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_STATUS):
760 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_ACTION):
761 case SDCA_CTL_TYPE_S(XU, FDL_CURRENTOWNER):
762 case SDCA_CTL_TYPE_S(SPE, AUTHTX_CURRENTOWNER):
763 case SDCA_CTL_TYPE_S(SPE, AUTHRX_CURRENTOWNER):
764 case SDCA_CTL_TYPE_S(MFPU, AE_CURRENTOWNER):
765 case SDCA_CTL_TYPE_S(SMPU, HIST_CURRENTOWNER):
766 case SDCA_CTL_TYPE_S(SMPU, DTODTX_CURRENTOWNER):
767 case SDCA_CTL_TYPE_S(SMPU, DTODRX_CURRENTOWNER):
768 case SDCA_CTL_TYPE_S(SAPU, DTODTX_CURRENTOWNER):
769 case SDCA_CTL_TYPE_S(SAPU, DTODRX_CURRENTOWNER):
770 case SDCA_CTL_TYPE_S(HIDE, HIDTX_CURRENTOWNER):
771 case SDCA_CTL_TYPE_S(HIDE, HIDRX_CURRENTOWNER):
772 return SDCA_CTL_DATATYPE_BITMAP;
773 case SDCA_CTL_TYPE_S(IT, MATCHING_GUID):
774 case SDCA_CTL_TYPE_S(OT, MATCHING_GUID):
775 case SDCA_CTL_TYPE_S(ENTITY_0, MATCHING_GUID):
776 return SDCA_CTL_DATATYPE_GUID;
777 default:
778 return SDCA_CTL_DATATYPE_IMPDEF;
779 }
780 }
781
find_sdca_control_range(struct device * dev,struct fwnode_handle * control_node,struct sdca_control_range * range)782 static int find_sdca_control_range(struct device *dev,
783 struct fwnode_handle *control_node,
784 struct sdca_control_range *range)
785 {
786 u8 *range_list;
787 int num_range;
788 u16 *limits;
789 int i;
790
791 num_range = fwnode_property_count_u8(control_node, "mipi-sdca-control-range");
792 if (!num_range || num_range == -EINVAL)
793 return 0;
794 else if (num_range < 0)
795 return num_range;
796
797 range_list = devm_kcalloc(dev, num_range, sizeof(*range_list), GFP_KERNEL);
798 if (!range_list)
799 return -ENOMEM;
800
801 fwnode_property_read_u8_array(control_node, "mipi-sdca-control-range",
802 range_list, num_range);
803
804 limits = (u16 *)range_list;
805
806 range->cols = le16_to_cpu(limits[0]);
807 range->rows = le16_to_cpu(limits[1]);
808 range->data = (u32 *)&limits[2];
809
810 num_range = (num_range - (2 * sizeof(*limits))) / sizeof(*range->data);
811 if (num_range != range->cols * range->rows)
812 return -EINVAL;
813
814 for (i = 0; i < num_range; i++)
815 range->data[i] = le32_to_cpu(range->data[i]);
816
817 return 0;
818 }
819
find_sdca_control_value(struct device * dev,struct sdca_entity * entity,struct fwnode_handle * control_node,struct sdca_control * control,const char * const label)820 static int find_sdca_control_value(struct device *dev, struct sdca_entity *entity,
821 struct fwnode_handle *control_node,
822 struct sdca_control *control,
823 const char * const label)
824 {
825 char property[SDCA_PROPERTY_LENGTH];
826 bool global = true;
827 int ret, cn, i;
828 u32 tmp;
829
830 snprintf(property, sizeof(property), "mipi-sdca-control-%s", label);
831
832 ret = fwnode_property_read_u32(control_node, property, &tmp);
833 if (ret == -EINVAL)
834 global = false;
835 else if (ret)
836 return ret;
837
838 i = 0;
839 for_each_set_bit(cn, (unsigned long *)&control->cn_list,
840 BITS_PER_TYPE(control->cn_list)) {
841 if (!global) {
842 snprintf(property, sizeof(property),
843 "mipi-sdca-control-cn-%d-%s", cn, label);
844
845 ret = fwnode_property_read_u32(control_node, property, &tmp);
846 if (ret)
847 return ret;
848 }
849
850 control->values[i] = tmp;
851 i++;
852 }
853
854 return 0;
855 }
856
857 /*
858 * TODO: Add support for -cn- properties, allowing different channels to have
859 * different defaults etc.
860 */
find_sdca_entity_control(struct device * dev,struct sdca_entity * entity,struct fwnode_handle * control_node,struct sdca_control * control)861 static int find_sdca_entity_control(struct device *dev, struct sdca_entity *entity,
862 struct fwnode_handle *control_node,
863 struct sdca_control *control)
864 {
865 u32 tmp;
866 int ret;
867
868 ret = fwnode_property_read_u32(control_node, "mipi-sdca-control-access-mode", &tmp);
869 if (ret) {
870 dev_err(dev, "%s: control %#x: access mode missing: %d\n",
871 entity->label, control->sel, ret);
872 return ret;
873 }
874
875 control->mode = tmp;
876
877 ret = fwnode_property_read_u32(control_node, "mipi-sdca-control-access-layer", &tmp);
878 if (ret) {
879 dev_err(dev, "%s: control %#x: access layer missing: %d\n",
880 entity->label, control->sel, ret);
881 return ret;
882 }
883
884 control->layers = tmp;
885
886 ret = fwnode_property_read_u64(control_node, "mipi-sdca-control-cn-list",
887 &control->cn_list);
888 if (ret == -EINVAL) {
889 /* Spec allows not specifying cn-list if only the first number is used */
890 control->cn_list = 0x1;
891 } else if (ret || !control->cn_list) {
892 dev_err(dev, "%s: control %#x: cn list missing: %d\n",
893 entity->label, control->sel, ret);
894 return ret;
895 }
896
897 control->values = devm_kzalloc(dev, hweight64(control->cn_list), GFP_KERNEL);
898 if (!control->values)
899 return -ENOMEM;
900
901 switch (control->mode) {
902 case SDCA_ACCESS_MODE_DC:
903 ret = find_sdca_control_value(dev, entity, control_node, control,
904 "dc-value");
905 if (ret) {
906 dev_err(dev, "%s: control %#x: dc value missing: %d\n",
907 entity->label, control->sel, ret);
908 return ret;
909 }
910
911 control->has_fixed = true;
912 break;
913 case SDCA_ACCESS_MODE_RW:
914 case SDCA_ACCESS_MODE_DUAL:
915 ret = find_sdca_control_value(dev, entity, control_node, control,
916 "default-value");
917 if (!ret)
918 control->has_default = true;
919
920 ret = find_sdca_control_value(dev, entity, control_node, control,
921 "fixed-value");
922 if (!ret)
923 control->has_fixed = true;
924 fallthrough;
925 case SDCA_ACCESS_MODE_RO:
926 control->deferrable = fwnode_property_read_bool(control_node,
927 "mipi-sdca-control-deferrable");
928 break;
929 default:
930 break;
931 }
932
933 ret = find_sdca_control_range(dev, control_node, &control->range);
934 if (ret) {
935 dev_err(dev, "%s: control %#x: range missing: %d\n",
936 entity->label, control->sel, ret);
937 return ret;
938 }
939
940 ret = fwnode_property_read_u32(control_node,
941 "mipi-sdca-control-interrupt-position",
942 &tmp);
943 if (!ret)
944 control->interrupt_position = tmp;
945 else
946 control->interrupt_position = SDCA_NO_INTERRUPT;
947
948 control->label = find_sdca_control_label(dev, entity, control);
949 if (!control->label)
950 return -ENOMEM;
951
952 control->type = find_sdca_control_datatype(entity, control);
953 control->nbits = find_sdca_control_bits(entity, control);
954
955 dev_info(dev, "%s: %s: control %#x mode %#x layers %#x cn %#llx int %d %s\n",
956 entity->label, control->label, control->sel,
957 control->mode, control->layers, control->cn_list,
958 control->interrupt_position, control->deferrable ? "deferrable" : "");
959
960 return 0;
961 }
962
find_sdca_entity_controls(struct device * dev,struct fwnode_handle * entity_node,struct sdca_entity * entity)963 static int find_sdca_entity_controls(struct device *dev,
964 struct fwnode_handle *entity_node,
965 struct sdca_entity *entity)
966 {
967 struct sdca_control *controls;
968 int num_controls;
969 u64 control_list;
970 int control_sel;
971 int i, ret;
972
973 ret = fwnode_property_read_u64(entity_node, "mipi-sdca-control-list", &control_list);
974 if (ret == -EINVAL) {
975 /* Allow missing control lists, assume no controls. */
976 dev_warn(dev, "%s: missing control list\n", entity->label);
977 return 0;
978 } else if (ret) {
979 dev_err(dev, "%s: failed to read control list: %d\n", entity->label, ret);
980 return ret;
981 } else if (!control_list) {
982 return 0;
983 }
984
985 num_controls = hweight64(control_list);
986 controls = devm_kcalloc(dev, num_controls, sizeof(*controls), GFP_KERNEL);
987 if (!controls)
988 return -ENOMEM;
989
990 i = 0;
991 for_each_set_bit(control_sel, (unsigned long *)&control_list,
992 BITS_PER_TYPE(control_list)) {
993 struct fwnode_handle *control_node;
994 char control_property[SDCA_PROPERTY_LENGTH];
995
996 /* DisCo uses upper-case for hex numbers */
997 snprintf(control_property, sizeof(control_property),
998 "mipi-sdca-control-0x%X-subproperties", control_sel);
999
1000 control_node = fwnode_get_named_child_node(entity_node, control_property);
1001 if (!control_node) {
1002 dev_err(dev, "%s: control node %s not found\n",
1003 entity->label, control_property);
1004 return -EINVAL;
1005 }
1006
1007 controls[i].sel = control_sel;
1008
1009 ret = find_sdca_entity_control(dev, entity, control_node, &controls[i]);
1010 fwnode_handle_put(control_node);
1011 if (ret)
1012 return ret;
1013
1014 i++;
1015 }
1016
1017 entity->num_controls = num_controls;
1018 entity->controls = controls;
1019
1020 return 0;
1021 }
1022
find_sdca_iot_dataport(struct sdca_entity_iot * terminal)1023 static bool find_sdca_iot_dataport(struct sdca_entity_iot *terminal)
1024 {
1025 switch (terminal->type) {
1026 case SDCA_TERM_TYPE_GENERIC:
1027 case SDCA_TERM_TYPE_ULTRASOUND:
1028 case SDCA_TERM_TYPE_CAPTURE_DIRECT_PCM_MIC:
1029 case SDCA_TERM_TYPE_RAW_PDM_MIC:
1030 case SDCA_TERM_TYPE_SPEECH:
1031 case SDCA_TERM_TYPE_VOICE:
1032 case SDCA_TERM_TYPE_SECONDARY_PCM_MIC:
1033 case SDCA_TERM_TYPE_ACOUSTIC_CONTEXT_AWARENESS:
1034 case SDCA_TERM_TYPE_DTOD_STREAM:
1035 case SDCA_TERM_TYPE_REFERENCE_STREAM:
1036 case SDCA_TERM_TYPE_SENSE_CAPTURE:
1037 case SDCA_TERM_TYPE_STREAMING_MIC:
1038 case SDCA_TERM_TYPE_OPTIMIZATION_STREAM:
1039 case SDCA_TERM_TYPE_PDM_RENDER_STREAM:
1040 case SDCA_TERM_TYPE_COMPANION_DATA:
1041 return true;
1042 default:
1043 return false;
1044 }
1045 }
1046
find_sdca_entity_iot(struct device * dev,struct fwnode_handle * entity_node,struct sdca_entity * entity)1047 static int find_sdca_entity_iot(struct device *dev,
1048 struct fwnode_handle *entity_node,
1049 struct sdca_entity *entity)
1050 {
1051 struct sdca_entity_iot *terminal = &entity->iot;
1052 u32 tmp;
1053 int ret;
1054
1055 ret = fwnode_property_read_u32(entity_node, "mipi-sdca-terminal-type", &tmp);
1056 if (ret) {
1057 dev_err(dev, "%s: terminal type missing: %d\n", entity->label, ret);
1058 return ret;
1059 }
1060
1061 terminal->type = tmp;
1062 terminal->is_dataport = find_sdca_iot_dataport(terminal);
1063
1064 ret = fwnode_property_read_u32(entity_node,
1065 "mipi-sdca-terminal-reference-number", &tmp);
1066 if (!ret)
1067 terminal->reference = tmp;
1068
1069 ret = fwnode_property_read_u32(entity_node,
1070 "mipi-sdca-terminal-connector-type", &tmp);
1071 if (!ret)
1072 terminal->connector = tmp;
1073
1074 ret = fwnode_property_read_u32(entity_node,
1075 "mipi-sdca-terminal-transducer-count", &tmp);
1076 if (!ret)
1077 terminal->num_transducer = tmp;
1078
1079 dev_info(dev, "%s: terminal type %#x ref %#x conn %#x count %d\n",
1080 entity->label, terminal->type, terminal->reference,
1081 terminal->connector, terminal->num_transducer);
1082
1083 return 0;
1084 }
1085
find_sdca_entity_cs(struct device * dev,struct fwnode_handle * entity_node,struct sdca_entity * entity)1086 static int find_sdca_entity_cs(struct device *dev,
1087 struct fwnode_handle *entity_node,
1088 struct sdca_entity *entity)
1089 {
1090 struct sdca_entity_cs *clock = &entity->cs;
1091 u32 tmp;
1092 int ret;
1093
1094 ret = fwnode_property_read_u32(entity_node, "mipi-sdca-cs-type", &tmp);
1095 if (ret) {
1096 dev_err(dev, "%s: clock type missing: %d\n", entity->label, ret);
1097 return ret;
1098 }
1099
1100 clock->type = tmp;
1101
1102 ret = fwnode_property_read_u32(entity_node,
1103 "mipi-sdca-clock-valid-max-delay", &tmp);
1104 if (!ret)
1105 clock->max_delay = tmp;
1106
1107 dev_info(dev, "%s: clock type %#x delay %d\n", entity->label,
1108 clock->type, clock->max_delay);
1109
1110 return 0;
1111 }
1112
find_sdca_entity_pde(struct device * dev,struct fwnode_handle * entity_node,struct sdca_entity * entity)1113 static int find_sdca_entity_pde(struct device *dev,
1114 struct fwnode_handle *entity_node,
1115 struct sdca_entity *entity)
1116 {
1117 static const int mult_delay = 3;
1118 struct sdca_entity_pde *power = &entity->pde;
1119 u32 *delay_list __free(kfree) = NULL;
1120 struct sdca_pde_delay *delays;
1121 int num_delays;
1122 int i, j;
1123
1124 num_delays = fwnode_property_count_u32(entity_node,
1125 "mipi-sdca-powerdomain-transition-max-delay");
1126 if (num_delays <= 0) {
1127 dev_err(dev, "%s: max delay list missing: %d\n",
1128 entity->label, num_delays);
1129 return -EINVAL;
1130 } else if (num_delays % mult_delay != 0) {
1131 dev_err(dev, "%s: delays not multiple of %d\n",
1132 entity->label, mult_delay);
1133 return -EINVAL;
1134 } else if (num_delays > SDCA_MAX_DELAY_COUNT) {
1135 dev_err(dev, "%s: maximum number of transition delays exceeded\n",
1136 entity->label);
1137 return -EINVAL;
1138 }
1139
1140 delay_list = kcalloc(num_delays, sizeof(*delay_list), GFP_KERNEL);
1141 if (!delay_list)
1142 return -ENOMEM;
1143
1144 fwnode_property_read_u32_array(entity_node,
1145 "mipi-sdca-powerdomain-transition-max-delay",
1146 delay_list, num_delays);
1147
1148 num_delays /= mult_delay;
1149
1150 delays = devm_kcalloc(dev, num_delays, sizeof(*delays), GFP_KERNEL);
1151 if (!delays)
1152 return -ENOMEM;
1153
1154 for (i = 0, j = 0; i < num_delays; i++) {
1155 delays[i].from_ps = delay_list[j++];
1156 delays[i].to_ps = delay_list[j++];
1157 delays[i].us = delay_list[j++];
1158
1159 dev_info(dev, "%s: from %#x to %#x delay %dus\n", entity->label,
1160 delays[i].from_ps, delays[i].to_ps, delays[i].us);
1161 }
1162
1163 power->num_max_delay = num_delays;
1164 power->max_delay = delays;
1165
1166 return 0;
1167 }
1168
1169 struct raw_ge_mode {
1170 u8 val;
1171 u8 num_controls;
1172 struct {
1173 u8 id;
1174 u8 sel;
1175 u8 cn;
1176 __le32 val;
1177 } __packed controls[] __counted_by(num_controls);
1178 } __packed;
1179
find_sdca_entity_ge(struct device * dev,struct fwnode_handle * entity_node,struct sdca_entity * entity)1180 static int find_sdca_entity_ge(struct device *dev,
1181 struct fwnode_handle *entity_node,
1182 struct sdca_entity *entity)
1183 {
1184 struct sdca_entity_ge *group = &entity->ge;
1185 u8 *affected_list __free(kfree) = NULL;
1186 u8 *affected_iter;
1187 int num_affected;
1188 int i, j;
1189
1190 num_affected = fwnode_property_count_u8(entity_node,
1191 "mipi-sdca-ge-selectedmode-controls-affected");
1192 if (!num_affected) {
1193 return 0;
1194 } else if (num_affected < 0) {
1195 dev_err(dev, "%s: failed to read affected controls: %d\n",
1196 entity->label, num_affected);
1197 return num_affected;
1198 } else if (num_affected > SDCA_MAX_AFFECTED_COUNT) {
1199 dev_err(dev, "%s: maximum affected controls size exceeded\n",
1200 entity->label);
1201 return -EINVAL;
1202 }
1203
1204 affected_list = kcalloc(num_affected, sizeof(*affected_list), GFP_KERNEL);
1205 if (!affected_list)
1206 return -ENOMEM;
1207
1208 fwnode_property_read_u8_array(entity_node,
1209 "mipi-sdca-ge-selectedmode-controls-affected",
1210 affected_list, num_affected);
1211
1212 group->num_modes = *affected_list;
1213 affected_iter = affected_list + 1;
1214
1215 group->modes = devm_kcalloc(dev, group->num_modes, sizeof(*group->modes),
1216 GFP_KERNEL);
1217 if (!group->modes)
1218 return -ENOMEM;
1219
1220 for (i = 0; i < group->num_modes; i++) {
1221 struct raw_ge_mode *raw = (struct raw_ge_mode *)affected_iter;
1222 struct sdca_ge_mode *mode = &group->modes[i];
1223
1224 affected_iter += sizeof(*raw);
1225 if (affected_iter > affected_list + num_affected)
1226 goto bad_list;
1227
1228 mode->val = raw->val;
1229 mode->num_controls = raw->num_controls;
1230
1231 affected_iter += mode->num_controls * sizeof(raw->controls[0]);
1232 if (affected_iter > affected_list + num_affected)
1233 goto bad_list;
1234
1235 mode->controls = devm_kcalloc(dev, mode->num_controls,
1236 sizeof(*mode->controls), GFP_KERNEL);
1237 if (!mode->controls)
1238 return -ENOMEM;
1239
1240 for (j = 0; j < mode->num_controls; j++) {
1241 mode->controls[j].id = raw->controls[j].id;
1242 mode->controls[j].sel = raw->controls[j].sel;
1243 mode->controls[j].cn = raw->controls[j].cn;
1244 mode->controls[j].val = le32_to_cpu(raw->controls[j].val);
1245 }
1246 }
1247
1248 return 0;
1249
1250 bad_list:
1251 dev_err(dev, "%s: malformed affected controls list\n", entity->label);
1252 return -EINVAL;
1253 }
1254
1255 static int
find_sdca_entity_hide(struct device * dev,struct fwnode_handle * function_node,struct fwnode_handle * entity_node,struct sdca_entity * entity)1256 find_sdca_entity_hide(struct device *dev, struct fwnode_handle *function_node,
1257 struct fwnode_handle *entity_node, struct sdca_entity *entity)
1258 {
1259 struct sdca_entity_hide *hide = &entity->hide;
1260 unsigned int delay, *af_list = hide->af_number_list;
1261 int nval, ret;
1262 unsigned char *report_desc = NULL;
1263
1264 ret = fwnode_property_read_u32(entity_node,
1265 "mipi-sdca-RxUMP-ownership-transition-maxdelay", &delay);
1266 if (!ret)
1267 hide->max_delay = delay;
1268
1269 nval = fwnode_property_count_u32(entity_node, "mipi-sdca-HIDTx-supported-report-ids");
1270 if (nval > 0) {
1271 hide->num_hidtx_ids = nval;
1272 hide->hidtx_ids = devm_kcalloc(dev, hide->num_hidtx_ids,
1273 sizeof(*hide->hidtx_ids), GFP_KERNEL);
1274 if (!hide->hidtx_ids)
1275 return -ENOMEM;
1276
1277 ret = fwnode_property_read_u32_array(entity_node,
1278 "mipi-sdca-HIDTx-supported-report-ids",
1279 hide->hidtx_ids,
1280 hide->num_hidtx_ids);
1281 if (ret < 0)
1282 return ret;
1283 }
1284
1285 nval = fwnode_property_count_u32(entity_node, "mipi-sdca-HIDRx-supported-report-ids");
1286 if (nval > 0) {
1287 hide->num_hidrx_ids = nval;
1288 hide->hidrx_ids = devm_kcalloc(dev, hide->num_hidrx_ids,
1289 sizeof(*hide->hidrx_ids), GFP_KERNEL);
1290 if (!hide->hidrx_ids)
1291 return -ENOMEM;
1292
1293 ret = fwnode_property_read_u32_array(entity_node,
1294 "mipi-sdca-HIDRx-supported-report-ids",
1295 hide->hidrx_ids,
1296 hide->num_hidrx_ids);
1297 if (ret < 0)
1298 return ret;
1299 }
1300
1301 nval = fwnode_property_count_u32(entity_node, "mipi-sdca-hide-related-audio-function-list");
1302 if (nval <= 0) {
1303 dev_err(dev, "%pfwP: audio function numbers list missing: %d\n",
1304 entity_node, nval);
1305 return -EINVAL;
1306 } else if (nval > SDCA_MAX_FUNCTION_COUNT) {
1307 dev_err(dev, "%pfwP: maximum number of audio function exceeded\n", entity_node);
1308 return -EINVAL;
1309 }
1310
1311 hide->hide_reside_function_num = nval;
1312 fwnode_property_read_u32_array(entity_node,
1313 "mipi-sdca-hide-related-audio-function-list", af_list, nval);
1314
1315 nval = fwnode_property_count_u8(function_node, "mipi-sdca-hid-descriptor");
1316 if (nval)
1317 fwnode_property_read_u8_array(function_node, "mipi-sdca-hid-descriptor",
1318 (u8 *)&hide->hid_desc, nval);
1319
1320 if (hide->hid_desc.bNumDescriptors) {
1321 nval = fwnode_property_count_u8(function_node, "mipi-sdca-report-descriptor");
1322 if (nval) {
1323 report_desc = devm_kzalloc(dev, nval, GFP_KERNEL);
1324 if (!report_desc)
1325 return -ENOMEM;
1326 hide->hid_report_desc = report_desc;
1327 fwnode_property_read_u8_array(function_node, "mipi-sdca-report-descriptor",
1328 report_desc, nval);
1329
1330 /* add HID device */
1331 ret = sdca_add_hid_device(dev, entity);
1332 if (ret) {
1333 dev_err(dev, "%pfwP: failed to add HID device: %d\n", entity_node, ret);
1334 return ret;
1335 }
1336 }
1337 }
1338
1339 return 0;
1340 }
1341
find_sdca_entity(struct device * dev,struct fwnode_handle * function_node,struct fwnode_handle * entity_node,struct sdca_entity * entity)1342 static int find_sdca_entity(struct device *dev,
1343 struct fwnode_handle *function_node,
1344 struct fwnode_handle *entity_node,
1345 struct sdca_entity *entity)
1346 {
1347 u32 tmp;
1348 int ret;
1349
1350 ret = fwnode_property_read_string(entity_node, "mipi-sdca-entity-label",
1351 &entity->label);
1352 if (ret) {
1353 dev_err(dev, "%pfwP: entity %#x: label missing: %d\n",
1354 function_node, entity->id, ret);
1355 return ret;
1356 }
1357
1358 ret = fwnode_property_read_u32(entity_node, "mipi-sdca-entity-type", &tmp);
1359 if (ret) {
1360 dev_err(dev, "%s: type missing: %d\n", entity->label, ret);
1361 return ret;
1362 }
1363
1364 entity->type = tmp;
1365
1366 dev_info(dev, "%s: entity %#x type %#x\n",
1367 entity->label, entity->id, entity->type);
1368
1369 switch (entity->type) {
1370 case SDCA_ENTITY_TYPE_IT:
1371 case SDCA_ENTITY_TYPE_OT:
1372 ret = find_sdca_entity_iot(dev, entity_node, entity);
1373 break;
1374 case SDCA_ENTITY_TYPE_CS:
1375 ret = find_sdca_entity_cs(dev, entity_node, entity);
1376 break;
1377 case SDCA_ENTITY_TYPE_PDE:
1378 ret = find_sdca_entity_pde(dev, entity_node, entity);
1379 break;
1380 case SDCA_ENTITY_TYPE_GE:
1381 ret = find_sdca_entity_ge(dev, entity_node, entity);
1382 break;
1383 case SDCA_ENTITY_TYPE_HIDE:
1384 ret = find_sdca_entity_hide(dev, function_node, entity_node, entity);
1385 break;
1386 default:
1387 break;
1388 }
1389 if (ret)
1390 return ret;
1391
1392 ret = find_sdca_entity_controls(dev, entity_node, entity);
1393 if (ret)
1394 return ret;
1395
1396 return 0;
1397 }
1398
find_sdca_entities(struct device * dev,struct fwnode_handle * function_node,struct sdca_function_data * function)1399 static int find_sdca_entities(struct device *dev,
1400 struct fwnode_handle *function_node,
1401 struct sdca_function_data *function)
1402 {
1403 u32 *entity_list __free(kfree) = NULL;
1404 struct sdca_entity *entities;
1405 int num_entities;
1406 int i, ret;
1407
1408 num_entities = fwnode_property_count_u32(function_node,
1409 "mipi-sdca-entity-id-list");
1410 if (num_entities <= 0) {
1411 dev_err(dev, "%pfwP: entity id list missing: %d\n",
1412 function_node, num_entities);
1413 return -EINVAL;
1414 } else if (num_entities > SDCA_MAX_ENTITY_COUNT) {
1415 dev_err(dev, "%pfwP: maximum number of entities exceeded\n",
1416 function_node);
1417 return -EINVAL;
1418 }
1419
1420 /* Add 1 to make space for Entity 0 */
1421 entities = devm_kcalloc(dev, num_entities + 1, sizeof(*entities), GFP_KERNEL);
1422 if (!entities)
1423 return -ENOMEM;
1424
1425 entity_list = kcalloc(num_entities, sizeof(*entity_list), GFP_KERNEL);
1426 if (!entity_list)
1427 return -ENOMEM;
1428
1429 fwnode_property_read_u32_array(function_node, "mipi-sdca-entity-id-list",
1430 entity_list, num_entities);
1431
1432 for (i = 0; i < num_entities; i++)
1433 entities[i].id = entity_list[i];
1434
1435 /* now read subproperties */
1436 for (i = 0; i < num_entities; i++) {
1437 char entity_property[SDCA_PROPERTY_LENGTH];
1438 struct fwnode_handle *entity_node;
1439
1440 /* DisCo uses upper-case for hex numbers */
1441 snprintf(entity_property, sizeof(entity_property),
1442 "mipi-sdca-entity-id-0x%X-subproperties", entities[i].id);
1443
1444 entity_node = fwnode_get_named_child_node(function_node, entity_property);
1445 if (!entity_node) {
1446 dev_err(dev, "%pfwP: entity node %s not found\n",
1447 function_node, entity_property);
1448 return -EINVAL;
1449 }
1450
1451 ret = find_sdca_entity(dev, function_node, entity_node, &entities[i]);
1452 fwnode_handle_put(entity_node);
1453 if (ret)
1454 return ret;
1455 }
1456
1457 /*
1458 * Add Entity 0 at end of the array, makes it easy to skip during
1459 * all the Entity searches involved in creating connections.
1460 */
1461 entities[num_entities].label = "entity0";
1462
1463 ret = find_sdca_entity_controls(dev, function_node, &entities[num_entities]);
1464 if (ret)
1465 return ret;
1466
1467 function->num_entities = num_entities + 1;
1468 function->entities = entities;
1469
1470 return 0;
1471 }
1472
find_sdca_entity_by_label(struct sdca_function_data * function,const char * entity_label)1473 static struct sdca_entity *find_sdca_entity_by_label(struct sdca_function_data *function,
1474 const char *entity_label)
1475 {
1476 int i;
1477
1478 for (i = 0; i < function->num_entities; i++) {
1479 struct sdca_entity *entity = &function->entities[i];
1480
1481 if (!strcmp(entity->label, entity_label))
1482 return entity;
1483 }
1484
1485 return NULL;
1486 }
1487
find_sdca_entity_by_id(struct sdca_function_data * function,const int id)1488 static struct sdca_entity *find_sdca_entity_by_id(struct sdca_function_data *function,
1489 const int id)
1490 {
1491 int i;
1492
1493 for (i = 0; i < function->num_entities; i++) {
1494 struct sdca_entity *entity = &function->entities[i];
1495
1496 if (entity->id == id)
1497 return entity;
1498 }
1499
1500 return NULL;
1501 }
1502
find_sdca_entity_connection_iot(struct device * dev,struct sdca_function_data * function,struct fwnode_handle * entity_node,struct sdca_entity * entity)1503 static int find_sdca_entity_connection_iot(struct device *dev,
1504 struct sdca_function_data *function,
1505 struct fwnode_handle *entity_node,
1506 struct sdca_entity *entity)
1507 {
1508 struct sdca_entity_iot *terminal = &entity->iot;
1509 struct fwnode_handle *clock_node;
1510 struct sdca_entity *clock_entity;
1511 const char *clock_label;
1512 int ret;
1513
1514 clock_node = fwnode_get_named_child_node(entity_node,
1515 "mipi-sdca-terminal-clock-connection");
1516 if (!clock_node)
1517 return 0;
1518
1519 ret = fwnode_property_read_string(clock_node, "mipi-sdca-entity-label",
1520 &clock_label);
1521 if (ret) {
1522 dev_err(dev, "%s: clock label missing: %d\n", entity->label, ret);
1523 fwnode_handle_put(clock_node);
1524 return ret;
1525 }
1526
1527 clock_entity = find_sdca_entity_by_label(function, clock_label);
1528 if (!clock_entity) {
1529 dev_err(dev, "%s: failed to find clock with label %s\n",
1530 entity->label, clock_label);
1531 fwnode_handle_put(clock_node);
1532 return -EINVAL;
1533 }
1534
1535 terminal->clock = clock_entity;
1536
1537 dev_info(dev, "%s -> %s\n", clock_entity->label, entity->label);
1538
1539 fwnode_handle_put(clock_node);
1540 return 0;
1541 }
1542
find_sdca_entity_connection_pde(struct device * dev,struct sdca_function_data * function,struct fwnode_handle * entity_node,struct sdca_entity * entity)1543 static int find_sdca_entity_connection_pde(struct device *dev,
1544 struct sdca_function_data *function,
1545 struct fwnode_handle *entity_node,
1546 struct sdca_entity *entity)
1547 {
1548 struct sdca_entity_pde *power = &entity->pde;
1549 u32 *managed_list __free(kfree) = NULL;
1550 struct sdca_entity **managed;
1551 int num_managed;
1552 int i;
1553
1554 num_managed = fwnode_property_count_u32(entity_node,
1555 "mipi-sdca-powerdomain-managed-list");
1556 if (!num_managed) {
1557 return 0;
1558 } else if (num_managed < 0) {
1559 dev_err(dev, "%s: managed list missing: %d\n", entity->label, num_managed);
1560 return num_managed;
1561 } else if (num_managed > SDCA_MAX_ENTITY_COUNT) {
1562 dev_err(dev, "%s: maximum number of managed entities exceeded\n",
1563 entity->label);
1564 return -EINVAL;
1565 }
1566
1567 managed = devm_kcalloc(dev, num_managed, sizeof(*managed), GFP_KERNEL);
1568 if (!managed)
1569 return -ENOMEM;
1570
1571 managed_list = kcalloc(num_managed, sizeof(*managed_list), GFP_KERNEL);
1572 if (!managed_list)
1573 return -ENOMEM;
1574
1575 fwnode_property_read_u32_array(entity_node,
1576 "mipi-sdca-powerdomain-managed-list",
1577 managed_list, num_managed);
1578
1579 for (i = 0; i < num_managed; i++) {
1580 managed[i] = find_sdca_entity_by_id(function, managed_list[i]);
1581 if (!managed[i]) {
1582 dev_err(dev, "%s: failed to find entity with id %#x\n",
1583 entity->label, managed_list[i]);
1584 return -EINVAL;
1585 }
1586
1587 dev_info(dev, "%s -> %s\n", managed[i]->label, entity->label);
1588 }
1589
1590 power->num_managed = num_managed;
1591 power->managed = managed;
1592
1593 return 0;
1594 }
1595
find_sdca_entity_connection_ge(struct device * dev,struct sdca_function_data * function,struct fwnode_handle * entity_node,struct sdca_entity * entity)1596 static int find_sdca_entity_connection_ge(struct device *dev,
1597 struct sdca_function_data *function,
1598 struct fwnode_handle *entity_node,
1599 struct sdca_entity *entity)
1600 {
1601 int i, j;
1602
1603 for (i = 0; i < entity->ge.num_modes; i++) {
1604 struct sdca_ge_mode *mode = &entity->ge.modes[i];
1605
1606 for (j = 0; j < mode->num_controls; j++) {
1607 struct sdca_ge_control *affected = &mode->controls[j];
1608 struct sdca_entity *managed;
1609
1610 managed = find_sdca_entity_by_id(function, affected->id);
1611 if (!managed) {
1612 dev_err(dev, "%s: failed to find entity with id %#x\n",
1613 entity->label, affected->id);
1614 return -EINVAL;
1615 }
1616
1617 if (managed->group && managed->group != entity) {
1618 dev_err(dev,
1619 "%s: entity controlled by two groups %s, %s\n",
1620 managed->label, managed->group->label,
1621 entity->label);
1622 return -EINVAL;
1623 }
1624
1625 managed->group = entity;
1626 }
1627 }
1628
1629 return 0;
1630 }
1631
find_sdca_entity_connection(struct device * dev,struct sdca_function_data * function,struct fwnode_handle * entity_node,struct sdca_entity * entity)1632 static int find_sdca_entity_connection(struct device *dev,
1633 struct sdca_function_data *function,
1634 struct fwnode_handle *entity_node,
1635 struct sdca_entity *entity)
1636 {
1637 struct sdca_entity **pins;
1638 int num_pins, pin;
1639 u64 pin_list;
1640 int i, ret;
1641
1642 switch (entity->type) {
1643 case SDCA_ENTITY_TYPE_IT:
1644 case SDCA_ENTITY_TYPE_OT:
1645 ret = find_sdca_entity_connection_iot(dev, function,
1646 entity_node, entity);
1647 break;
1648 case SDCA_ENTITY_TYPE_PDE:
1649 ret = find_sdca_entity_connection_pde(dev, function,
1650 entity_node, entity);
1651 break;
1652 case SDCA_ENTITY_TYPE_GE:
1653 ret = find_sdca_entity_connection_ge(dev, function,
1654 entity_node, entity);
1655 break;
1656 default:
1657 ret = 0;
1658 break;
1659 }
1660 if (ret)
1661 return ret;
1662
1663 ret = fwnode_property_read_u64(entity_node, "mipi-sdca-input-pin-list", &pin_list);
1664 if (ret == -EINVAL) {
1665 /* Allow missing pin lists, assume no pins. */
1666 return 0;
1667 } else if (ret) {
1668 dev_err(dev, "%s: failed to read pin list: %d\n", entity->label, ret);
1669 return ret;
1670 } else if (pin_list & BIT(0)) {
1671 /*
1672 * Each bit set in the pin-list refers to an entity_id in this
1673 * Function. Entity 0 is an illegal connection since it is used
1674 * for Function-level configurations.
1675 */
1676 dev_err(dev, "%s: pin 0 used as input\n", entity->label);
1677 return -EINVAL;
1678 } else if (!pin_list) {
1679 return 0;
1680 }
1681
1682 num_pins = hweight64(pin_list);
1683 pins = devm_kcalloc(dev, num_pins, sizeof(*pins), GFP_KERNEL);
1684 if (!pins)
1685 return -ENOMEM;
1686
1687 i = 0;
1688 for_each_set_bit(pin, (unsigned long *)&pin_list, BITS_PER_TYPE(pin_list)) {
1689 char pin_property[SDCA_PROPERTY_LENGTH];
1690 struct fwnode_handle *connected_node;
1691 struct sdca_entity *connected_entity;
1692 const char *connected_label;
1693
1694 snprintf(pin_property, sizeof(pin_property), "mipi-sdca-input-pin-%d", pin);
1695
1696 connected_node = fwnode_get_named_child_node(entity_node, pin_property);
1697 if (!connected_node) {
1698 dev_err(dev, "%s: pin node %s not found\n",
1699 entity->label, pin_property);
1700 return -EINVAL;
1701 }
1702
1703 ret = fwnode_property_read_string(connected_node, "mipi-sdca-entity-label",
1704 &connected_label);
1705 if (ret) {
1706 dev_err(dev, "%s: pin %d label missing: %d\n",
1707 entity->label, pin, ret);
1708 fwnode_handle_put(connected_node);
1709 return ret;
1710 }
1711
1712 connected_entity = find_sdca_entity_by_label(function, connected_label);
1713 if (!connected_entity) {
1714 dev_err(dev, "%s: failed to find entity with label %s\n",
1715 entity->label, connected_label);
1716 fwnode_handle_put(connected_node);
1717 return -EINVAL;
1718 }
1719
1720 pins[i] = connected_entity;
1721
1722 dev_info(dev, "%s -> %s\n", connected_entity->label, entity->label);
1723
1724 i++;
1725 fwnode_handle_put(connected_node);
1726 }
1727
1728 entity->num_sources = num_pins;
1729 entity->sources = pins;
1730
1731 return 0;
1732 }
1733
find_sdca_connections(struct device * dev,struct fwnode_handle * function_node,struct sdca_function_data * function)1734 static int find_sdca_connections(struct device *dev,
1735 struct fwnode_handle *function_node,
1736 struct sdca_function_data *function)
1737 {
1738 int i;
1739
1740 /* Entity 0 cannot have connections */
1741 for (i = 0; i < function->num_entities - 1; i++) {
1742 struct sdca_entity *entity = &function->entities[i];
1743 char entity_property[SDCA_PROPERTY_LENGTH];
1744 struct fwnode_handle *entity_node;
1745 int ret;
1746
1747 /* DisCo uses upper-case for hex numbers */
1748 snprintf(entity_property, sizeof(entity_property),
1749 "mipi-sdca-entity-id-0x%X-subproperties",
1750 entity->id);
1751
1752 entity_node = fwnode_get_named_child_node(function_node, entity_property);
1753 if (!entity_node) {
1754 dev_err(dev, "%pfwP: entity node %s not found\n",
1755 function_node, entity_property);
1756 return -EINVAL;
1757 }
1758
1759 ret = find_sdca_entity_connection(dev, function, entity_node, entity);
1760 fwnode_handle_put(entity_node);
1761 if (ret)
1762 return ret;
1763 }
1764
1765 return 0;
1766 }
1767
find_sdca_cluster_channel(struct device * dev,struct sdca_cluster * cluster,struct fwnode_handle * channel_node,struct sdca_channel * channel)1768 static int find_sdca_cluster_channel(struct device *dev,
1769 struct sdca_cluster *cluster,
1770 struct fwnode_handle *channel_node,
1771 struct sdca_channel *channel)
1772 {
1773 u32 tmp;
1774 int ret;
1775
1776 ret = fwnode_property_read_u32(channel_node, "mipi-sdca-cluster-channel-id", &tmp);
1777 if (ret) {
1778 dev_err(dev, "cluster %#x: missing channel id: %d\n",
1779 cluster->id, ret);
1780 return ret;
1781 }
1782
1783 channel->id = tmp;
1784
1785 ret = fwnode_property_read_u32(channel_node,
1786 "mipi-sdca-cluster-channel-purpose",
1787 &tmp);
1788 if (ret) {
1789 dev_err(dev, "cluster %#x: channel %#x: missing purpose: %d\n",
1790 cluster->id, channel->id, ret);
1791 return ret;
1792 }
1793
1794 channel->purpose = tmp;
1795
1796 ret = fwnode_property_read_u32(channel_node,
1797 "mipi-sdca-cluster-channel-relationship",
1798 &tmp);
1799 if (ret) {
1800 dev_err(dev, "cluster %#x: channel %#x: missing relationship: %d\n",
1801 cluster->id, channel->id, ret);
1802 return ret;
1803 }
1804
1805 channel->relationship = tmp;
1806
1807 dev_info(dev, "cluster %#x: channel id %#x purpose %#x relationship %#x\n",
1808 cluster->id, channel->id, channel->purpose, channel->relationship);
1809
1810 return 0;
1811 }
1812
find_sdca_cluster_channels(struct device * dev,struct fwnode_handle * cluster_node,struct sdca_cluster * cluster)1813 static int find_sdca_cluster_channels(struct device *dev,
1814 struct fwnode_handle *cluster_node,
1815 struct sdca_cluster *cluster)
1816 {
1817 struct sdca_channel *channels;
1818 u32 num_channels;
1819 int i, ret;
1820
1821 ret = fwnode_property_read_u32(cluster_node, "mipi-sdca-channel-count",
1822 &num_channels);
1823 if (ret < 0) {
1824 dev_err(dev, "cluster %#x: failed to read channel list: %d\n",
1825 cluster->id, ret);
1826 return ret;
1827 } else if (num_channels > SDCA_MAX_CHANNEL_COUNT) {
1828 dev_err(dev, "cluster %#x: maximum number of channels exceeded\n",
1829 cluster->id);
1830 return -EINVAL;
1831 }
1832
1833 channels = devm_kcalloc(dev, num_channels, sizeof(*channels), GFP_KERNEL);
1834 if (!channels)
1835 return -ENOMEM;
1836
1837 for (i = 0; i < num_channels; i++) {
1838 char channel_property[SDCA_PROPERTY_LENGTH];
1839 struct fwnode_handle *channel_node;
1840
1841 /* DisCo uses upper-case for hex numbers */
1842 snprintf(channel_property, sizeof(channel_property),
1843 "mipi-sdca-channel-%d-subproperties", i + 1);
1844
1845 channel_node = fwnode_get_named_child_node(cluster_node, channel_property);
1846 if (!channel_node) {
1847 dev_err(dev, "cluster %#x: channel node %s not found\n",
1848 cluster->id, channel_property);
1849 return -EINVAL;
1850 }
1851
1852 ret = find_sdca_cluster_channel(dev, cluster, channel_node, &channels[i]);
1853 fwnode_handle_put(channel_node);
1854 if (ret)
1855 return ret;
1856 }
1857
1858 cluster->num_channels = num_channels;
1859 cluster->channels = channels;
1860
1861 return 0;
1862 }
1863
find_sdca_clusters(struct device * dev,struct fwnode_handle * function_node,struct sdca_function_data * function)1864 static int find_sdca_clusters(struct device *dev,
1865 struct fwnode_handle *function_node,
1866 struct sdca_function_data *function)
1867 {
1868 u32 *cluster_list __free(kfree) = NULL;
1869 struct sdca_cluster *clusters;
1870 int num_clusters;
1871 int i, ret;
1872
1873 num_clusters = fwnode_property_count_u32(function_node, "mipi-sdca-cluster-id-list");
1874 if (!num_clusters || num_clusters == -EINVAL) {
1875 return 0;
1876 } else if (num_clusters < 0) {
1877 dev_err(dev, "%pfwP: failed to read cluster id list: %d\n",
1878 function_node, num_clusters);
1879 return num_clusters;
1880 } else if (num_clusters > SDCA_MAX_CLUSTER_COUNT) {
1881 dev_err(dev, "%pfwP: maximum number of clusters exceeded\n", function_node);
1882 return -EINVAL;
1883 }
1884
1885 clusters = devm_kcalloc(dev, num_clusters, sizeof(*clusters), GFP_KERNEL);
1886 if (!clusters)
1887 return -ENOMEM;
1888
1889 cluster_list = kcalloc(num_clusters, sizeof(*cluster_list), GFP_KERNEL);
1890 if (!cluster_list)
1891 return -ENOMEM;
1892
1893 fwnode_property_read_u32_array(function_node, "mipi-sdca-cluster-id-list",
1894 cluster_list, num_clusters);
1895
1896 for (i = 0; i < num_clusters; i++)
1897 clusters[i].id = cluster_list[i];
1898
1899 /* now read subproperties */
1900 for (i = 0; i < num_clusters; i++) {
1901 char cluster_property[SDCA_PROPERTY_LENGTH];
1902 struct fwnode_handle *cluster_node;
1903
1904 /* DisCo uses upper-case for hex numbers */
1905 snprintf(cluster_property, sizeof(cluster_property),
1906 "mipi-sdca-cluster-id-0x%X-subproperties", clusters[i].id);
1907
1908 cluster_node = fwnode_get_named_child_node(function_node, cluster_property);
1909 if (!cluster_node) {
1910 dev_err(dev, "%pfwP: cluster node %s not found\n",
1911 function_node, cluster_property);
1912 return -EINVAL;
1913 }
1914
1915 ret = find_sdca_cluster_channels(dev, cluster_node, &clusters[i]);
1916 fwnode_handle_put(cluster_node);
1917 if (ret)
1918 return ret;
1919 }
1920
1921 function->num_clusters = num_clusters;
1922 function->clusters = clusters;
1923
1924 return 0;
1925 }
1926
1927 /**
1928 * sdca_parse_function - parse ACPI DisCo for a Function
1929 * @dev: Pointer to device against which function data will be allocated.
1930 * @function_desc: Pointer to the Function short descriptor.
1931 * @function: Pointer to the Function information, to be populated.
1932 *
1933 * Return: Returns 0 for success.
1934 */
sdca_parse_function(struct device * dev,struct sdca_function_desc * function_desc,struct sdca_function_data * function)1935 int sdca_parse_function(struct device *dev,
1936 struct sdca_function_desc *function_desc,
1937 struct sdca_function_data *function)
1938 {
1939 u32 tmp;
1940 int ret;
1941
1942 function->desc = function_desc;
1943
1944 ret = fwnode_property_read_u32(function_desc->node,
1945 "mipi-sdca-function-busy-max-delay", &tmp);
1946 if (!ret)
1947 function->busy_max_delay = tmp;
1948
1949 dev_info(dev, "%pfwP: name %s delay %dus\n", function->desc->node,
1950 function->desc->name, function->busy_max_delay);
1951
1952 ret = find_sdca_init_table(dev, function_desc->node, function);
1953 if (ret)
1954 return ret;
1955
1956 ret = find_sdca_entities(dev, function_desc->node, function);
1957 if (ret)
1958 return ret;
1959
1960 ret = find_sdca_connections(dev, function_desc->node, function);
1961 if (ret)
1962 return ret;
1963
1964 ret = find_sdca_clusters(dev, function_desc->node, function);
1965 if (ret < 0)
1966 return ret;
1967
1968 return 0;
1969 }
1970 EXPORT_SYMBOL_NS(sdca_parse_function, "SND_SOC_SDCA");
1971
sdca_selector_find_control(struct device * dev,struct sdca_entity * entity,const int sel)1972 struct sdca_control *sdca_selector_find_control(struct device *dev,
1973 struct sdca_entity *entity,
1974 const int sel)
1975 {
1976 int i;
1977
1978 for (i = 0; i < entity->num_controls; i++) {
1979 struct sdca_control *control = &entity->controls[i];
1980
1981 if (control->sel == sel)
1982 return control;
1983 }
1984
1985 dev_err(dev, "%s: control %#x: missing\n", entity->label, sel);
1986 return NULL;
1987 }
1988 EXPORT_SYMBOL_NS(sdca_selector_find_control, "SND_SOC_SDCA");
1989
sdca_control_find_range(struct device * dev,struct sdca_entity * entity,struct sdca_control * control,int cols,int rows)1990 struct sdca_control_range *sdca_control_find_range(struct device *dev,
1991 struct sdca_entity *entity,
1992 struct sdca_control *control,
1993 int cols, int rows)
1994 {
1995 struct sdca_control_range *range = &control->range;
1996
1997 if ((cols && range->cols != cols) || (rows && range->rows != rows) ||
1998 !range->data) {
1999 dev_err(dev, "%s: control %#x: ranges invalid (%d,%d)\n",
2000 entity->label, control->sel, range->cols, range->rows);
2001 return NULL;
2002 }
2003
2004 return range;
2005 }
2006 EXPORT_SYMBOL_NS(sdca_control_find_range, "SND_SOC_SDCA");
2007
sdca_selector_find_range(struct device * dev,struct sdca_entity * entity,int sel,int cols,int rows)2008 struct sdca_control_range *sdca_selector_find_range(struct device *dev,
2009 struct sdca_entity *entity,
2010 int sel, int cols, int rows)
2011 {
2012 struct sdca_control *control;
2013
2014 control = sdca_selector_find_control(dev, entity, sel);
2015 if (!control)
2016 return NULL;
2017
2018 return sdca_control_find_range(dev, entity, control, cols, rows);
2019 }
2020 EXPORT_SYMBOL_NS(sdca_selector_find_range, "SND_SOC_SDCA");
2021
sdca_id_find_cluster(struct device * dev,struct sdca_function_data * function,const int id)2022 struct sdca_cluster *sdca_id_find_cluster(struct device *dev,
2023 struct sdca_function_data *function,
2024 const int id)
2025 {
2026 int i;
2027
2028 for (i = 0; i < function->num_clusters; i++) {
2029 struct sdca_cluster *cluster = &function->clusters[i];
2030
2031 if (cluster->id == id)
2032 return cluster;
2033 }
2034
2035 dev_err(dev, "%s: cluster %#x: missing\n", function->desc->name, id);
2036 return NULL;
2037 }
2038 EXPORT_SYMBOL_NS(sdca_id_find_cluster, "SND_SOC_SDCA");
2039
2040 MODULE_LICENSE("Dual BSD/GPL");
2041 MODULE_DESCRIPTION("SDCA library");
2042