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 #include <linux/acpi.h>
10 #include <linux/array_size.h>
11 #include <linux/byteorder/generic.h>
12 #include <linux/cleanup.h>
13 #include <linux/device.h>
14 #include <linux/dev_printk.h>
15 #include <linux/module.h>
16 #include <linux/property.h>
17 #include <linux/soundwire/sdw.h>
18 #include <linux/string.h>
19 #include <linux/types.h>
20 #include <sound/sdca.h>
21 #include <sound/sdca_function.h>
22
23 /*
24 * Should be long enough to encompass all the MIPI DisCo properties.
25 */
26 #define SDCA_PROPERTY_LENGTH 64
27
patch_sdca_function_type(u32 interface_revision,u32 * function_type)28 static int patch_sdca_function_type(u32 interface_revision, u32 *function_type)
29 {
30 /*
31 * Unfortunately early SDCA specifications used different indices for Functions,
32 * for backwards compatibility we have to reorder the values found.
33 */
34 if (interface_revision < 0x0801) {
35 switch (*function_type) {
36 case 1:
37 *function_type = SDCA_FUNCTION_TYPE_SMART_AMP;
38 break;
39 case 2:
40 *function_type = SDCA_FUNCTION_TYPE_SMART_MIC;
41 break;
42 case 3:
43 *function_type = SDCA_FUNCTION_TYPE_SPEAKER_MIC;
44 break;
45 case 4:
46 *function_type = SDCA_FUNCTION_TYPE_UAJ;
47 break;
48 case 5:
49 *function_type = SDCA_FUNCTION_TYPE_RJ;
50 break;
51 case 6:
52 *function_type = SDCA_FUNCTION_TYPE_HID;
53 break;
54 default:
55 return -EINVAL;
56 }
57 }
58
59 return 0;
60 }
61
get_sdca_function_name(u32 function_type)62 static const char *get_sdca_function_name(u32 function_type)
63 {
64 switch (function_type) {
65 case SDCA_FUNCTION_TYPE_SMART_AMP:
66 return SDCA_FUNCTION_TYPE_SMART_AMP_NAME;
67 case SDCA_FUNCTION_TYPE_SMART_MIC:
68 return SDCA_FUNCTION_TYPE_SMART_MIC_NAME;
69 case SDCA_FUNCTION_TYPE_UAJ:
70 return SDCA_FUNCTION_TYPE_UAJ_NAME;
71 case SDCA_FUNCTION_TYPE_HID:
72 return SDCA_FUNCTION_TYPE_HID_NAME;
73 case SDCA_FUNCTION_TYPE_SIMPLE_AMP:
74 return SDCA_FUNCTION_TYPE_SIMPLE_AMP_NAME;
75 case SDCA_FUNCTION_TYPE_SIMPLE_MIC:
76 return SDCA_FUNCTION_TYPE_SIMPLE_MIC_NAME;
77 case SDCA_FUNCTION_TYPE_SPEAKER_MIC:
78 return SDCA_FUNCTION_TYPE_SPEAKER_MIC_NAME;
79 case SDCA_FUNCTION_TYPE_RJ:
80 return SDCA_FUNCTION_TYPE_RJ_NAME;
81 case SDCA_FUNCTION_TYPE_COMPANION_AMP:
82 return SDCA_FUNCTION_TYPE_COMPANION_AMP_NAME;
83 case SDCA_FUNCTION_TYPE_IMP_DEF:
84 return SDCA_FUNCTION_TYPE_IMP_DEF_NAME;
85 default:
86 return NULL;
87 }
88 }
89
find_sdca_function(struct acpi_device * adev,void * data)90 static int find_sdca_function(struct acpi_device *adev, void *data)
91 {
92 struct fwnode_handle *function_node = acpi_fwnode_handle(adev);
93 struct sdca_device_data *sdca_data = data;
94 struct sdw_slave *slave = container_of(sdca_data, struct sdw_slave, sdca_data);
95 struct device *dev = &adev->dev;
96 struct fwnode_handle *control5; /* used to identify function type */
97 const char *function_name;
98 u32 function_type;
99 int function_index;
100 u64 addr;
101 int i, ret;
102
103 if (sdca_data->num_functions >= SDCA_MAX_FUNCTION_COUNT) {
104 dev_err(dev, "maximum number of functions exceeded\n");
105 return -EINVAL;
106 }
107
108 ret = acpi_get_local_u64_address(adev->handle, &addr);
109 if (ret < 0)
110 return ret;
111
112 if (!addr || addr > 0x7) {
113 dev_err(dev, "invalid addr: 0x%llx\n", addr);
114 return -ENODEV;
115 }
116
117 /*
118 * Extracting the topology type for an SDCA function is a
119 * convoluted process.
120 * The Function type is only visible as a result of a read
121 * from a control. In theory this would mean reading from the hardware,
122 * but the SDCA/DisCo specs defined the notion of "DC value" - a constant
123 * represented with a DSD subproperty.
124 * Drivers have to query the properties for the control
125 * SDCA_CONTROL_ENTITY_0_FUNCTION_TOPOLOGY (0x05)
126 */
127 control5 = fwnode_get_named_child_node(function_node,
128 "mipi-sdca-control-0x5-subproperties");
129 if (!control5)
130 return -ENODEV;
131
132 ret = fwnode_property_read_u32(control5, "mipi-sdca-control-dc-value",
133 &function_type);
134
135 fwnode_handle_put(control5);
136
137 if (ret < 0) {
138 dev_err(dev, "function type only supported as DisCo constant\n");
139 return ret;
140 }
141
142 if (!sdca_device_quirk_match(slave, SDCA_QUIRKS_SKIP_FUNC_TYPE_PATCHING)) {
143 ret = patch_sdca_function_type(sdca_data->interface_revision, &function_type);
144 if (ret < 0) {
145 dev_err(dev, "SDCA version %#x invalid function type %d\n",
146 sdca_data->interface_revision, function_type);
147 return ret;
148 }
149 }
150
151 function_name = get_sdca_function_name(function_type);
152 if (!function_name) {
153 dev_err(dev, "invalid SDCA function type %d\n", function_type);
154 return -EINVAL;
155 }
156
157 dev_info(dev, "SDCA function %s (type %d) at 0x%llx\n",
158 function_name, function_type, addr);
159
160 /* store results */
161 function_index = sdca_data->num_functions;
162
163 for (i = 0; i < function_index; i++) {
164 if (sdca_data->function[i].type == function_type) {
165 sdca_data->function[function_index].duplicate = true;
166 break;
167 }
168 }
169
170 sdca_data->function[function_index].adr = addr;
171 sdca_data->function[function_index].type = function_type;
172 sdca_data->function[function_index].name = function_name;
173 sdca_data->function[function_index].node = function_node;
174 sdca_data->num_functions++;
175
176 return 0;
177 }
178
179 /**
180 * sdca_lookup_functions - Parse sdca_device_desc for each Function
181 * @slave: SoundWire slave device to be processed.
182 *
183 * Iterate through the available SDCA Functions and fill in a short
184 * descriptor (struct sdca_function_desc) for each function, this
185 * information is stored along with the SoundWire slave device and
186 * used for adding drivers and quirks before the devices have fully
187 * probed.
188 */
sdca_lookup_functions(struct sdw_slave * slave)189 void sdca_lookup_functions(struct sdw_slave *slave)
190 {
191 struct device *sdev = &slave->dev;
192 struct acpi_device *adev = to_acpi_device_node(sdev->fwnode);
193
194 if (!adev) {
195 dev_info(sdev, "no matching ACPI device found, ignoring peripheral\n");
196 return;
197 }
198
199 acpi_dev_for_each_child(adev, find_sdca_function, &slave->sdca_data);
200 }
201 EXPORT_SYMBOL_NS(sdca_lookup_functions, "SND_SOC_SDCA");
202
203 struct raw_init_write {
204 __le32 addr;
205 u8 val;
206 } __packed;
207
find_sdca_init_table(struct device * dev,struct fwnode_handle * function_node,struct sdca_function_data * function)208 static int find_sdca_init_table(struct device *dev,
209 struct fwnode_handle *function_node,
210 struct sdca_function_data *function)
211 {
212 struct raw_init_write *raw __free(kfree) = NULL;
213 struct sdca_init_write *init_write;
214 int i, num_init_writes;
215
216 num_init_writes = fwnode_property_count_u8(function_node,
217 "mipi-sdca-function-initialization-table");
218 if (!num_init_writes || num_init_writes == -EINVAL) {
219 return 0;
220 } else if (num_init_writes < 0) {
221 dev_err(dev, "%pfwP: failed to read initialization table: %d\n",
222 function_node, num_init_writes);
223 return num_init_writes;
224 } else if (num_init_writes % sizeof(*raw) != 0) {
225 dev_err(dev, "%pfwP: init table size invalid\n", function_node);
226 return -EINVAL;
227 }
228
229 raw = kzalloc(num_init_writes, GFP_KERNEL);
230 if (!raw)
231 return -ENOMEM;
232
233 fwnode_property_read_u8_array(function_node,
234 "mipi-sdca-function-initialization-table",
235 (u8 *)raw, num_init_writes);
236
237 num_init_writes /= sizeof(*raw);
238
239 init_write = devm_kcalloc(dev, num_init_writes, sizeof(*init_write), GFP_KERNEL);
240 if (!init_write)
241 return -ENOMEM;
242
243 for (i = 0; i < num_init_writes; i++) {
244 init_write[i].addr = le32_to_cpu(raw[i].addr);
245 init_write[i].val = raw[i].val;
246 }
247
248 function->num_init_table = num_init_writes;
249 function->init_table = init_write;
250
251 return 0;
252 }
253
find_sdca_control_label(struct device * dev,const struct sdca_entity * entity,const struct sdca_control * control)254 static const char *find_sdca_control_label(struct device *dev,
255 const struct sdca_entity *entity,
256 const struct sdca_control *control)
257 {
258 switch (SDCA_CTL_TYPE(entity->type, control->sel)) {
259 case SDCA_CTL_TYPE_S(IT, MIC_BIAS):
260 return SDCA_CTL_MIC_BIAS_NAME;
261 case SDCA_CTL_TYPE_S(IT, USAGE):
262 case SDCA_CTL_TYPE_S(OT, USAGE):
263 return SDCA_CTL_USAGE_NAME;
264 case SDCA_CTL_TYPE_S(IT, LATENCY):
265 case SDCA_CTL_TYPE_S(OT, LATENCY):
266 case SDCA_CTL_TYPE_S(MU, LATENCY):
267 case SDCA_CTL_TYPE_S(SU, LATENCY):
268 case SDCA_CTL_TYPE_S(FU, LATENCY):
269 case SDCA_CTL_TYPE_S(XU, LATENCY):
270 case SDCA_CTL_TYPE_S(CRU, LATENCY):
271 case SDCA_CTL_TYPE_S(UDMPU, LATENCY):
272 case SDCA_CTL_TYPE_S(MFPU, LATENCY):
273 case SDCA_CTL_TYPE_S(SMPU, LATENCY):
274 case SDCA_CTL_TYPE_S(SAPU, LATENCY):
275 case SDCA_CTL_TYPE_S(PPU, LATENCY):
276 return SDCA_CTL_LATENCY_NAME;
277 case SDCA_CTL_TYPE_S(IT, CLUSTERINDEX):
278 case SDCA_CTL_TYPE_S(CRU, CLUSTERINDEX):
279 case SDCA_CTL_TYPE_S(UDMPU, CLUSTERINDEX):
280 case SDCA_CTL_TYPE_S(MFPU, CLUSTERINDEX):
281 return SDCA_CTL_CLUSTERINDEX_NAME;
282 case SDCA_CTL_TYPE_S(IT, DATAPORT_SELECTOR):
283 case SDCA_CTL_TYPE_S(OT, DATAPORT_SELECTOR):
284 return SDCA_CTL_DATAPORT_SELECTOR_NAME;
285 case SDCA_CTL_TYPE_S(IT, MATCHING_GUID):
286 case SDCA_CTL_TYPE_S(OT, MATCHING_GUID):
287 case SDCA_CTL_TYPE_S(ENTITY_0, MATCHING_GUID):
288 return SDCA_CTL_MATCHING_GUID_NAME;
289 case SDCA_CTL_TYPE_S(IT, KEEP_ALIVE):
290 case SDCA_CTL_TYPE_S(OT, KEEP_ALIVE):
291 return SDCA_CTL_KEEP_ALIVE_NAME;
292 case SDCA_CTL_TYPE_S(IT, NDAI_STREAM):
293 case SDCA_CTL_TYPE_S(OT, NDAI_STREAM):
294 return SDCA_CTL_NDAI_STREAM_NAME;
295 case SDCA_CTL_TYPE_S(IT, NDAI_CATEGORY):
296 case SDCA_CTL_TYPE_S(OT, NDAI_CATEGORY):
297 return SDCA_CTL_NDAI_CATEGORY_NAME;
298 case SDCA_CTL_TYPE_S(IT, NDAI_CODINGTYPE):
299 case SDCA_CTL_TYPE_S(OT, NDAI_CODINGTYPE):
300 return SDCA_CTL_NDAI_CODINGTYPE_NAME;
301 case SDCA_CTL_TYPE_S(IT, NDAI_PACKETTYPE):
302 case SDCA_CTL_TYPE_S(OT, NDAI_PACKETTYPE):
303 return SDCA_CTL_NDAI_PACKETTYPE_NAME;
304 case SDCA_CTL_TYPE_S(MU, MIXER):
305 return SDCA_CTL_MIXER_NAME;
306 case SDCA_CTL_TYPE_S(SU, SELECTOR):
307 return SDCA_CTL_SELECTOR_NAME;
308 case SDCA_CTL_TYPE_S(FU, MUTE):
309 return SDCA_CTL_MUTE_NAME;
310 case SDCA_CTL_TYPE_S(FU, CHANNEL_VOLUME):
311 return SDCA_CTL_CHANNEL_VOLUME_NAME;
312 case SDCA_CTL_TYPE_S(FU, AGC):
313 return SDCA_CTL_AGC_NAME;
314 case SDCA_CTL_TYPE_S(FU, BASS_BOOST):
315 return SDCA_CTL_BASS_BOOST_NAME;
316 case SDCA_CTL_TYPE_S(FU, LOUDNESS):
317 return SDCA_CTL_LOUDNESS_NAME;
318 case SDCA_CTL_TYPE_S(FU, GAIN):
319 return SDCA_CTL_GAIN_NAME;
320 case SDCA_CTL_TYPE_S(XU, BYPASS):
321 case SDCA_CTL_TYPE_S(MFPU, BYPASS):
322 return SDCA_CTL_BYPASS_NAME;
323 case SDCA_CTL_TYPE_S(XU, XU_ID):
324 return SDCA_CTL_XU_ID_NAME;
325 case SDCA_CTL_TYPE_S(XU, XU_VERSION):
326 return SDCA_CTL_XU_VERSION_NAME;
327 case SDCA_CTL_TYPE_S(XU, FDL_CURRENTOWNER):
328 return SDCA_CTL_FDL_CURRENTOWNER_NAME;
329 case SDCA_CTL_TYPE_S(XU, FDL_MESSAGEOFFSET):
330 return SDCA_CTL_FDL_MESSAGEOFFSET_NAME;
331 case SDCA_CTL_TYPE_S(XU, FDL_MESSAGELENGTH):
332 return SDCA_CTL_FDL_MESSAGELENGTH_NAME;
333 case SDCA_CTL_TYPE_S(XU, FDL_STATUS):
334 return SDCA_CTL_FDL_STATUS_NAME;
335 case SDCA_CTL_TYPE_S(XU, FDL_SET_INDEX):
336 return SDCA_CTL_FDL_SET_INDEX_NAME;
337 case SDCA_CTL_TYPE_S(XU, FDL_HOST_REQUEST):
338 return SDCA_CTL_FDL_HOST_REQUEST_NAME;
339 case SDCA_CTL_TYPE_S(CS, CLOCK_VALID):
340 return SDCA_CTL_CLOCK_VALID_NAME;
341 case SDCA_CTL_TYPE_S(CS, SAMPLERATEINDEX):
342 return SDCA_CTL_SAMPLERATEINDEX_NAME;
343 case SDCA_CTL_TYPE_S(CX, CLOCK_SELECT):
344 return SDCA_CTL_CLOCK_SELECT_NAME;
345 case SDCA_CTL_TYPE_S(PDE, REQUESTED_PS):
346 return SDCA_CTL_REQUESTED_PS_NAME;
347 case SDCA_CTL_TYPE_S(PDE, ACTUAL_PS):
348 return SDCA_CTL_ACTUAL_PS_NAME;
349 case SDCA_CTL_TYPE_S(GE, SELECTED_MODE):
350 return SDCA_CTL_SELECTED_MODE_NAME;
351 case SDCA_CTL_TYPE_S(GE, DETECTED_MODE):
352 return SDCA_CTL_DETECTED_MODE_NAME;
353 case SDCA_CTL_TYPE_S(SPE, PRIVATE):
354 return SDCA_CTL_PRIVATE_NAME;
355 case SDCA_CTL_TYPE_S(SPE, PRIVACY_POLICY):
356 return SDCA_CTL_PRIVACY_POLICY_NAME;
357 case SDCA_CTL_TYPE_S(SPE, PRIVACY_LOCKSTATE):
358 return SDCA_CTL_PRIVACY_LOCKSTATE_NAME;
359 case SDCA_CTL_TYPE_S(SPE, PRIVACY_OWNER):
360 return SDCA_CTL_PRIVACY_OWNER_NAME;
361 case SDCA_CTL_TYPE_S(SPE, AUTHTX_CURRENTOWNER):
362 return SDCA_CTL_AUTHTX_CURRENTOWNER_NAME;
363 case SDCA_CTL_TYPE_S(SPE, AUTHTX_MESSAGEOFFSET):
364 return SDCA_CTL_AUTHTX_MESSAGEOFFSET_NAME;
365 case SDCA_CTL_TYPE_S(SPE, AUTHTX_MESSAGELENGTH):
366 return SDCA_CTL_AUTHTX_MESSAGELENGTH_NAME;
367 case SDCA_CTL_TYPE_S(SPE, AUTHRX_CURRENTOWNER):
368 return SDCA_CTL_AUTHRX_CURRENTOWNER_NAME;
369 case SDCA_CTL_TYPE_S(SPE, AUTHRX_MESSAGEOFFSET):
370 return SDCA_CTL_AUTHRX_MESSAGEOFFSET_NAME;
371 case SDCA_CTL_TYPE_S(SPE, AUTHRX_MESSAGELENGTH):
372 return SDCA_CTL_AUTHRX_MESSAGELENGTH_NAME;
373 case SDCA_CTL_TYPE_S(UDMPU, ACOUSTIC_ENERGY_LEVEL_MONITOR):
374 return SDCA_CTL_ACOUSTIC_ENERGY_LEVEL_MONITOR_NAME;
375 case SDCA_CTL_TYPE_S(UDMPU, ULTRASOUND_LOOP_GAIN):
376 return SDCA_CTL_ULTRASOUND_LOOP_GAIN_NAME;
377 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_0):
378 return SDCA_CTL_OPAQUESET_0_NAME;
379 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_1):
380 return SDCA_CTL_OPAQUESET_1_NAME;
381 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_2):
382 return SDCA_CTL_OPAQUESET_2_NAME;
383 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_3):
384 return SDCA_CTL_OPAQUESET_3_NAME;
385 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_4):
386 return SDCA_CTL_OPAQUESET_4_NAME;
387 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_5):
388 return SDCA_CTL_OPAQUESET_5_NAME;
389 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_6):
390 return SDCA_CTL_OPAQUESET_6_NAME;
391 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_7):
392 return SDCA_CTL_OPAQUESET_7_NAME;
393 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_8):
394 return SDCA_CTL_OPAQUESET_8_NAME;
395 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_9):
396 return SDCA_CTL_OPAQUESET_9_NAME;
397 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_10):
398 return SDCA_CTL_OPAQUESET_10_NAME;
399 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_11):
400 return SDCA_CTL_OPAQUESET_11_NAME;
401 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_12):
402 return SDCA_CTL_OPAQUESET_12_NAME;
403 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_13):
404 return SDCA_CTL_OPAQUESET_13_NAME;
405 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_14):
406 return SDCA_CTL_OPAQUESET_14_NAME;
407 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_15):
408 return SDCA_CTL_OPAQUESET_15_NAME;
409 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_16):
410 return SDCA_CTL_OPAQUESET_16_NAME;
411 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_17):
412 return SDCA_CTL_OPAQUESET_17_NAME;
413 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_18):
414 return SDCA_CTL_OPAQUESET_18_NAME;
415 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_19):
416 return SDCA_CTL_OPAQUESET_19_NAME;
417 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_20):
418 return SDCA_CTL_OPAQUESET_20_NAME;
419 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_21):
420 return SDCA_CTL_OPAQUESET_21_NAME;
421 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_22):
422 return SDCA_CTL_OPAQUESET_22_NAME;
423 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_23):
424 return SDCA_CTL_OPAQUESET_23_NAME;
425 case SDCA_CTL_TYPE_S(MFPU, ALGORITHM_READY):
426 return SDCA_CTL_ALGORITHM_READY_NAME;
427 case SDCA_CTL_TYPE_S(MFPU, ALGORITHM_ENABLE):
428 return SDCA_CTL_ALGORITHM_ENABLE_NAME;
429 case SDCA_CTL_TYPE_S(MFPU, ALGORITHM_PREPARE):
430 return SDCA_CTL_ALGORITHM_PREPARE_NAME;
431 case SDCA_CTL_TYPE_S(MFPU, CENTER_FREQUENCY_INDEX):
432 return SDCA_CTL_CENTER_FREQUENCY_INDEX_NAME;
433 case SDCA_CTL_TYPE_S(MFPU, ULTRASOUND_LEVEL):
434 return SDCA_CTL_ULTRASOUND_LEVEL_NAME;
435 case SDCA_CTL_TYPE_S(MFPU, AE_NUMBER):
436 return SDCA_CTL_AE_NUMBER_NAME;
437 case SDCA_CTL_TYPE_S(MFPU, AE_CURRENTOWNER):
438 return SDCA_CTL_AE_CURRENTOWNER_NAME;
439 case SDCA_CTL_TYPE_S(MFPU, AE_MESSAGEOFFSET):
440 return SDCA_CTL_AE_MESSAGEOFFSET_NAME;
441 case SDCA_CTL_TYPE_S(MFPU, AE_MESSAGELENGTH):
442 return SDCA_CTL_AE_MESSAGELENGTH_NAME;
443 case SDCA_CTL_TYPE_S(SMPU, TRIGGER_ENABLE):
444 return SDCA_CTL_TRIGGER_ENABLE_NAME;
445 case SDCA_CTL_TYPE_S(SMPU, TRIGGER_STATUS):
446 return SDCA_CTL_TRIGGER_STATUS_NAME;
447 case SDCA_CTL_TYPE_S(SMPU, HIST_BUFFER_MODE):
448 return SDCA_CTL_HIST_BUFFER_MODE_NAME;
449 case SDCA_CTL_TYPE_S(SMPU, HIST_BUFFER_PREAMBLE):
450 return SDCA_CTL_HIST_BUFFER_PREAMBLE_NAME;
451 case SDCA_CTL_TYPE_S(SMPU, HIST_ERROR):
452 return SDCA_CTL_HIST_ERROR_NAME;
453 case SDCA_CTL_TYPE_S(SMPU, TRIGGER_EXTENSION):
454 return SDCA_CTL_TRIGGER_EXTENSION_NAME;
455 case SDCA_CTL_TYPE_S(SMPU, TRIGGER_READY):
456 return SDCA_CTL_TRIGGER_READY_NAME;
457 case SDCA_CTL_TYPE_S(SMPU, HIST_CURRENTOWNER):
458 return SDCA_CTL_HIST_CURRENTOWNER_NAME;
459 case SDCA_CTL_TYPE_S(SMPU, HIST_MESSAGEOFFSET):
460 return SDCA_CTL_HIST_MESSAGEOFFSET_NAME;
461 case SDCA_CTL_TYPE_S(SMPU, HIST_MESSAGELENGTH):
462 return SDCA_CTL_HIST_MESSAGELENGTH_NAME;
463 case SDCA_CTL_TYPE_S(SMPU, DTODTX_CURRENTOWNER):
464 return SDCA_CTL_DTODTX_CURRENTOWNER_NAME;
465 case SDCA_CTL_TYPE_S(SMPU, DTODTX_MESSAGEOFFSET):
466 return SDCA_CTL_DTODTX_MESSAGEOFFSET_NAME;
467 case SDCA_CTL_TYPE_S(SMPU, DTODTX_MESSAGELENGTH):
468 return SDCA_CTL_DTODTX_MESSAGELENGTH_NAME;
469 case SDCA_CTL_TYPE_S(SMPU, DTODRX_CURRENTOWNER):
470 return SDCA_CTL_DTODRX_CURRENTOWNER_NAME;
471 case SDCA_CTL_TYPE_S(SMPU, DTODRX_MESSAGEOFFSET):
472 return SDCA_CTL_DTODRX_MESSAGEOFFSET_NAME;
473 case SDCA_CTL_TYPE_S(SMPU, DTODRX_MESSAGELENGTH):
474 return SDCA_CTL_DTODRX_MESSAGELENGTH_NAME;
475 case SDCA_CTL_TYPE_S(SAPU, PROTECTION_MODE):
476 return SDCA_CTL_PROTECTION_MODE_NAME;
477 case SDCA_CTL_TYPE_S(SAPU, PROTECTION_STATUS):
478 return SDCA_CTL_PROTECTION_STATUS_NAME;
479 case SDCA_CTL_TYPE_S(SAPU, OPAQUESETREQ_INDEX):
480 return SDCA_CTL_OPAQUESETREQ_INDEX_NAME;
481 case SDCA_CTL_TYPE_S(SAPU, DTODTX_CURRENTOWNER):
482 return SDCA_CTL_DTODTX_CURRENTOWNER_NAME;
483 case SDCA_CTL_TYPE_S(SAPU, DTODTX_MESSAGEOFFSET):
484 return SDCA_CTL_DTODTX_MESSAGEOFFSET_NAME;
485 case SDCA_CTL_TYPE_S(SAPU, DTODTX_MESSAGELENGTH):
486 return SDCA_CTL_DTODTX_MESSAGELENGTH_NAME;
487 case SDCA_CTL_TYPE_S(SAPU, DTODRX_CURRENTOWNER):
488 return SDCA_CTL_DTODRX_CURRENTOWNER_NAME;
489 case SDCA_CTL_TYPE_S(SAPU, DTODRX_MESSAGEOFFSET):
490 return SDCA_CTL_DTODRX_MESSAGEOFFSET_NAME;
491 case SDCA_CTL_TYPE_S(SAPU, DTODRX_MESSAGELENGTH):
492 return SDCA_CTL_DTODRX_MESSAGELENGTH_NAME;
493 case SDCA_CTL_TYPE_S(PPU, POSTURENUMBER):
494 return SDCA_CTL_POSTURENUMBER_NAME;
495 case SDCA_CTL_TYPE_S(PPU, POSTUREEXTENSION):
496 return SDCA_CTL_POSTUREEXTENSION_NAME;
497 case SDCA_CTL_TYPE_S(PPU, HORIZONTALBALANCE):
498 return SDCA_CTL_HORIZONTALBALANCE_NAME;
499 case SDCA_CTL_TYPE_S(PPU, VERTICALBALANCE):
500 return SDCA_CTL_VERTICALBALANCE_NAME;
501 case SDCA_CTL_TYPE_S(TG, TONE_DIVIDER):
502 return SDCA_CTL_TONE_DIVIDER_NAME;
503 case SDCA_CTL_TYPE_S(HIDE, HIDTX_CURRENTOWNER):
504 return SDCA_CTL_HIDTX_CURRENTOWNER_NAME;
505 case SDCA_CTL_TYPE_S(HIDE, HIDTX_MESSAGEOFFSET):
506 return SDCA_CTL_HIDTX_MESSAGEOFFSET_NAME;
507 case SDCA_CTL_TYPE_S(HIDE, HIDTX_MESSAGELENGTH):
508 return SDCA_CTL_HIDTX_MESSAGELENGTH_NAME;
509 case SDCA_CTL_TYPE_S(HIDE, HIDRX_CURRENTOWNER):
510 return SDCA_CTL_HIDRX_CURRENTOWNER_NAME;
511 case SDCA_CTL_TYPE_S(HIDE, HIDRX_MESSAGEOFFSET):
512 return SDCA_CTL_HIDRX_MESSAGEOFFSET_NAME;
513 case SDCA_CTL_TYPE_S(HIDE, HIDRX_MESSAGELENGTH):
514 return SDCA_CTL_HIDRX_MESSAGELENGTH_NAME;
515 case SDCA_CTL_TYPE_S(ENTITY_0, COMMIT_GROUP_MASK):
516 return SDCA_CTL_COMMIT_GROUP_MASK_NAME;
517 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_SDCA_VERSION):
518 return SDCA_CTL_FUNCTION_SDCA_VERSION_NAME;
519 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_TYPE):
520 return SDCA_CTL_FUNCTION_TYPE_NAME;
521 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_MANUFACTURER_ID):
522 return SDCA_CTL_FUNCTION_MANUFACTURER_ID_NAME;
523 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_ID):
524 return SDCA_CTL_FUNCTION_ID_NAME;
525 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_VERSION):
526 return SDCA_CTL_FUNCTION_VERSION_NAME;
527 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_EXTENSION_ID):
528 return SDCA_CTL_FUNCTION_EXTENSION_ID_NAME;
529 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_EXTENSION_VERSION):
530 return SDCA_CTL_FUNCTION_EXTENSION_VERSION_NAME;
531 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_STATUS):
532 return SDCA_CTL_FUNCTION_STATUS_NAME;
533 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_ACTION):
534 return SDCA_CTL_FUNCTION_ACTION_NAME;
535 case SDCA_CTL_TYPE_S(ENTITY_0, DEVICE_MANUFACTURER_ID):
536 return SDCA_CTL_DEVICE_MANUFACTURER_ID_NAME;
537 case SDCA_CTL_TYPE_S(ENTITY_0, DEVICE_PART_ID):
538 return SDCA_CTL_DEVICE_PART_ID_NAME;
539 case SDCA_CTL_TYPE_S(ENTITY_0, DEVICE_VERSION):
540 return SDCA_CTL_DEVICE_VERSION_NAME;
541 case SDCA_CTL_TYPE_S(ENTITY_0, DEVICE_SDCA_VERSION):
542 return SDCA_CTL_DEVICE_SDCA_VERSION_NAME;
543 default:
544 return devm_kasprintf(dev, GFP_KERNEL, "Imp-Def %#x", control->sel);
545 }
546 }
547
find_sdca_control_bits(const struct sdca_entity * entity,const struct sdca_control * control)548 static unsigned int find_sdca_control_bits(const struct sdca_entity *entity,
549 const struct sdca_control *control)
550 {
551 switch (SDCA_CTL_TYPE(entity->type, control->sel)) {
552 case SDCA_CTL_TYPE_S(IT, LATENCY):
553 case SDCA_CTL_TYPE_S(OT, LATENCY):
554 case SDCA_CTL_TYPE_S(MU, LATENCY):
555 case SDCA_CTL_TYPE_S(SU, LATENCY):
556 case SDCA_CTL_TYPE_S(FU, LATENCY):
557 case SDCA_CTL_TYPE_S(XU, LATENCY):
558 case SDCA_CTL_TYPE_S(XU, FDL_MESSAGEOFFSET):
559 case SDCA_CTL_TYPE_S(XU, FDL_MESSAGELENGTH):
560 case SDCA_CTL_TYPE_S(SPE, AUTHTX_MESSAGEOFFSET):
561 case SDCA_CTL_TYPE_S(SPE, AUTHTX_MESSAGELENGTH):
562 case SDCA_CTL_TYPE_S(SPE, AUTHRX_MESSAGEOFFSET):
563 case SDCA_CTL_TYPE_S(SPE, AUTHRX_MESSAGELENGTH):
564 case SDCA_CTL_TYPE_S(CRU, LATENCY):
565 case SDCA_CTL_TYPE_S(UDMPU, LATENCY):
566 case SDCA_CTL_TYPE_S(MFPU, LATENCY):
567 case SDCA_CTL_TYPE_S(MFPU, AE_MESSAGEOFFSET):
568 case SDCA_CTL_TYPE_S(MFPU, AE_MESSAGELENGTH):
569 case SDCA_CTL_TYPE_S(SMPU, LATENCY):
570 case SDCA_CTL_TYPE_S(SMPU, HIST_MESSAGEOFFSET):
571 case SDCA_CTL_TYPE_S(SMPU, HIST_MESSAGELENGTH):
572 case SDCA_CTL_TYPE_S(SMPU, DTODTX_MESSAGEOFFSET):
573 case SDCA_CTL_TYPE_S(SMPU, DTODTX_MESSAGELENGTH):
574 case SDCA_CTL_TYPE_S(SMPU, DTODRX_MESSAGEOFFSET):
575 case SDCA_CTL_TYPE_S(SMPU, DTODRX_MESSAGELENGTH):
576 case SDCA_CTL_TYPE_S(SAPU, LATENCY):
577 case SDCA_CTL_TYPE_S(SAPU, DTODTX_MESSAGEOFFSET):
578 case SDCA_CTL_TYPE_S(SAPU, DTODTX_MESSAGELENGTH):
579 case SDCA_CTL_TYPE_S(SAPU, DTODRX_MESSAGEOFFSET):
580 case SDCA_CTL_TYPE_S(SAPU, DTODRX_MESSAGELENGTH):
581 case SDCA_CTL_TYPE_S(PPU, LATENCY):
582 case SDCA_CTL_TYPE_S(HIDE, HIDTX_MESSAGEOFFSET):
583 case SDCA_CTL_TYPE_S(HIDE, HIDTX_MESSAGELENGTH):
584 case SDCA_CTL_TYPE_S(HIDE, HIDRX_MESSAGEOFFSET):
585 case SDCA_CTL_TYPE_S(HIDE, HIDRX_MESSAGELENGTH):
586 return 32;
587 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_MANUFACTURER_ID):
588 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_ID):
589 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_EXTENSION_ID):
590 case SDCA_CTL_TYPE_S(ENTITY_0, DEVICE_MANUFACTURER_ID):
591 case SDCA_CTL_TYPE_S(ENTITY_0, DEVICE_PART_ID):
592 case SDCA_CTL_TYPE_S(IT, DATAPORT_SELECTOR):
593 case SDCA_CTL_TYPE_S(OT, DATAPORT_SELECTOR):
594 case SDCA_CTL_TYPE_S(MU, MIXER):
595 case SDCA_CTL_TYPE_S(FU, CHANNEL_VOLUME):
596 case SDCA_CTL_TYPE_S(FU, GAIN):
597 case SDCA_CTL_TYPE_S(XU, XU_ID):
598 case SDCA_CTL_TYPE_S(UDMPU, ACOUSTIC_ENERGY_LEVEL_MONITOR):
599 case SDCA_CTL_TYPE_S(UDMPU, ULTRASOUND_LOOP_GAIN):
600 case SDCA_CTL_TYPE_S(MFPU, ULTRASOUND_LEVEL):
601 case SDCA_CTL_TYPE_S(PPU, HORIZONTALBALANCE):
602 case SDCA_CTL_TYPE_S(PPU, VERTICALBALANCE):
603 return 16;
604 case SDCA_CTL_TYPE_S(FU, MUTE):
605 case SDCA_CTL_TYPE_S(FU, AGC):
606 case SDCA_CTL_TYPE_S(FU, BASS_BOOST):
607 case SDCA_CTL_TYPE_S(FU, LOUDNESS):
608 case SDCA_CTL_TYPE_S(XU, BYPASS):
609 case SDCA_CTL_TYPE_S(MFPU, BYPASS):
610 return 1;
611 default:
612 return 8;
613 }
614 }
615
616 static enum sdca_control_datatype
find_sdca_control_datatype(const struct sdca_entity * entity,const struct sdca_control * control)617 find_sdca_control_datatype(const struct sdca_entity *entity,
618 const struct sdca_control *control)
619 {
620 switch (SDCA_CTL_TYPE(entity->type, control->sel)) {
621 case SDCA_CTL_TYPE_S(XU, BYPASS):
622 case SDCA_CTL_TYPE_S(MFPU, BYPASS):
623 case SDCA_CTL_TYPE_S(FU, MUTE):
624 case SDCA_CTL_TYPE_S(FU, AGC):
625 case SDCA_CTL_TYPE_S(FU, BASS_BOOST):
626 case SDCA_CTL_TYPE_S(FU, LOUDNESS):
627 return SDCA_CTL_DATATYPE_ONEBIT;
628 case SDCA_CTL_TYPE_S(IT, LATENCY):
629 case SDCA_CTL_TYPE_S(OT, LATENCY):
630 case SDCA_CTL_TYPE_S(MU, LATENCY):
631 case SDCA_CTL_TYPE_S(SU, LATENCY):
632 case SDCA_CTL_TYPE_S(FU, LATENCY):
633 case SDCA_CTL_TYPE_S(XU, LATENCY):
634 case SDCA_CTL_TYPE_S(CRU, LATENCY):
635 case SDCA_CTL_TYPE_S(UDMPU, LATENCY):
636 case SDCA_CTL_TYPE_S(MFPU, LATENCY):
637 case SDCA_CTL_TYPE_S(SMPU, LATENCY):
638 case SDCA_CTL_TYPE_S(SAPU, LATENCY):
639 case SDCA_CTL_TYPE_S(PPU, LATENCY):
640 case SDCA_CTL_TYPE_S(SU, SELECTOR):
641 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_0):
642 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_1):
643 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_2):
644 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_3):
645 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_4):
646 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_5):
647 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_6):
648 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_7):
649 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_8):
650 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_9):
651 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_10):
652 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_11):
653 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_12):
654 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_13):
655 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_14):
656 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_15):
657 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_16):
658 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_17):
659 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_18):
660 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_19):
661 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_20):
662 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_21):
663 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_22):
664 case SDCA_CTL_TYPE_S(UDMPU, OPAQUESET_23):
665 case SDCA_CTL_TYPE_S(SAPU, PROTECTION_MODE):
666 case SDCA_CTL_TYPE_S(SMPU, HIST_BUFFER_PREAMBLE):
667 case SDCA_CTL_TYPE_S(XU, FDL_HOST_REQUEST):
668 case SDCA_CTL_TYPE_S(XU, XU_ID):
669 case SDCA_CTL_TYPE_S(CX, CLOCK_SELECT):
670 case SDCA_CTL_TYPE_S(TG, TONE_DIVIDER):
671 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_MANUFACTURER_ID):
672 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_ID):
673 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_EXTENSION_ID):
674 case SDCA_CTL_TYPE_S(ENTITY_0, DEVICE_MANUFACTURER_ID):
675 case SDCA_CTL_TYPE_S(ENTITY_0, DEVICE_PART_ID):
676 case SDCA_CTL_TYPE_S(XU, FDL_MESSAGEOFFSET):
677 case SDCA_CTL_TYPE_S(XU, FDL_MESSAGELENGTH):
678 case SDCA_CTL_TYPE_S(SPE, AUTHTX_MESSAGEOFFSET):
679 case SDCA_CTL_TYPE_S(SPE, AUTHTX_MESSAGELENGTH):
680 case SDCA_CTL_TYPE_S(SPE, AUTHRX_MESSAGEOFFSET):
681 case SDCA_CTL_TYPE_S(SPE, AUTHRX_MESSAGELENGTH):
682 case SDCA_CTL_TYPE_S(MFPU, AE_MESSAGEOFFSET):
683 case SDCA_CTL_TYPE_S(MFPU, AE_MESSAGELENGTH):
684 case SDCA_CTL_TYPE_S(SMPU, HIST_MESSAGEOFFSET):
685 case SDCA_CTL_TYPE_S(SMPU, HIST_MESSAGELENGTH):
686 case SDCA_CTL_TYPE_S(SMPU, DTODTX_MESSAGEOFFSET):
687 case SDCA_CTL_TYPE_S(SMPU, DTODTX_MESSAGELENGTH):
688 case SDCA_CTL_TYPE_S(SMPU, DTODRX_MESSAGEOFFSET):
689 case SDCA_CTL_TYPE_S(SMPU, DTODRX_MESSAGELENGTH):
690 case SDCA_CTL_TYPE_S(SAPU, DTODTX_MESSAGEOFFSET):
691 case SDCA_CTL_TYPE_S(SAPU, DTODTX_MESSAGELENGTH):
692 case SDCA_CTL_TYPE_S(SAPU, DTODRX_MESSAGEOFFSET):
693 case SDCA_CTL_TYPE_S(SAPU, DTODRX_MESSAGELENGTH):
694 case SDCA_CTL_TYPE_S(HIDE, HIDTX_MESSAGEOFFSET):
695 case SDCA_CTL_TYPE_S(HIDE, HIDTX_MESSAGELENGTH):
696 case SDCA_CTL_TYPE_S(HIDE, HIDRX_MESSAGEOFFSET):
697 case SDCA_CTL_TYPE_S(HIDE, HIDRX_MESSAGELENGTH):
698 return SDCA_CTL_DATATYPE_INTEGER;
699 case SDCA_CTL_TYPE_S(IT, MIC_BIAS):
700 case SDCA_CTL_TYPE_S(SMPU, HIST_BUFFER_MODE):
701 case SDCA_CTL_TYPE_S(PDE, REQUESTED_PS):
702 case SDCA_CTL_TYPE_S(PDE, ACTUAL_PS):
703 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_TYPE):
704 return SDCA_CTL_DATATYPE_SPEC_ENCODED_VALUE;
705 case SDCA_CTL_TYPE_S(XU, XU_VERSION):
706 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_SDCA_VERSION):
707 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_VERSION):
708 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_EXTENSION_VERSION):
709 case SDCA_CTL_TYPE_S(ENTITY_0, DEVICE_VERSION):
710 case SDCA_CTL_TYPE_S(ENTITY_0, DEVICE_SDCA_VERSION):
711 return SDCA_CTL_DATATYPE_BCD;
712 case SDCA_CTL_TYPE_S(FU, CHANNEL_VOLUME):
713 case SDCA_CTL_TYPE_S(FU, GAIN):
714 case SDCA_CTL_TYPE_S(MU, MIXER):
715 case SDCA_CTL_TYPE_S(PPU, HORIZONTALBALANCE):
716 case SDCA_CTL_TYPE_S(PPU, VERTICALBALANCE):
717 case SDCA_CTL_TYPE_S(MFPU, ULTRASOUND_LEVEL):
718 case SDCA_CTL_TYPE_S(UDMPU, ACOUSTIC_ENERGY_LEVEL_MONITOR):
719 case SDCA_CTL_TYPE_S(UDMPU, ULTRASOUND_LOOP_GAIN):
720 return SDCA_CTL_DATATYPE_Q7P8DB;
721 case SDCA_CTL_TYPE_S(IT, USAGE):
722 case SDCA_CTL_TYPE_S(OT, USAGE):
723 case SDCA_CTL_TYPE_S(IT, CLUSTERINDEX):
724 case SDCA_CTL_TYPE_S(CRU, CLUSTERINDEX):
725 case SDCA_CTL_TYPE_S(UDMPU, CLUSTERINDEX):
726 case SDCA_CTL_TYPE_S(MFPU, CLUSTERINDEX):
727 case SDCA_CTL_TYPE_S(MFPU, CENTER_FREQUENCY_INDEX):
728 case SDCA_CTL_TYPE_S(MFPU, AE_NUMBER):
729 case SDCA_CTL_TYPE_S(SAPU, OPAQUESETREQ_INDEX):
730 case SDCA_CTL_TYPE_S(XU, FDL_SET_INDEX):
731 case SDCA_CTL_TYPE_S(CS, SAMPLERATEINDEX):
732 case SDCA_CTL_TYPE_S(GE, SELECTED_MODE):
733 case SDCA_CTL_TYPE_S(GE, DETECTED_MODE):
734 return SDCA_CTL_DATATYPE_BYTEINDEX;
735 case SDCA_CTL_TYPE_S(PPU, POSTURENUMBER):
736 return SDCA_CTL_DATATYPE_POSTURENUMBER;
737 case SDCA_CTL_TYPE_S(IT, DATAPORT_SELECTOR):
738 case SDCA_CTL_TYPE_S(OT, DATAPORT_SELECTOR):
739 return SDCA_CTL_DATATYPE_DP_INDEX;
740 case SDCA_CTL_TYPE_S(MFPU, ALGORITHM_READY):
741 case SDCA_CTL_TYPE_S(MFPU, ALGORITHM_ENABLE):
742 case SDCA_CTL_TYPE_S(MFPU, ALGORITHM_PREPARE):
743 case SDCA_CTL_TYPE_S(SAPU, PROTECTION_STATUS):
744 case SDCA_CTL_TYPE_S(SMPU, TRIGGER_ENABLE):
745 case SDCA_CTL_TYPE_S(SMPU, TRIGGER_STATUS):
746 case SDCA_CTL_TYPE_S(SMPU, TRIGGER_READY):
747 case SDCA_CTL_TYPE_S(SPE, PRIVACY_POLICY):
748 case SDCA_CTL_TYPE_S(SPE, PRIVACY_OWNER):
749 return SDCA_CTL_DATATYPE_BITINDEX;
750 case SDCA_CTL_TYPE_S(IT, KEEP_ALIVE):
751 case SDCA_CTL_TYPE_S(OT, KEEP_ALIVE):
752 case SDCA_CTL_TYPE_S(IT, NDAI_STREAM):
753 case SDCA_CTL_TYPE_S(OT, NDAI_STREAM):
754 case SDCA_CTL_TYPE_S(IT, NDAI_CATEGORY):
755 case SDCA_CTL_TYPE_S(OT, NDAI_CATEGORY):
756 case SDCA_CTL_TYPE_S(IT, NDAI_CODINGTYPE):
757 case SDCA_CTL_TYPE_S(OT, NDAI_CODINGTYPE):
758 case SDCA_CTL_TYPE_S(IT, NDAI_PACKETTYPE):
759 case SDCA_CTL_TYPE_S(OT, NDAI_PACKETTYPE):
760 case SDCA_CTL_TYPE_S(SMPU, HIST_ERROR):
761 case SDCA_CTL_TYPE_S(XU, FDL_STATUS):
762 case SDCA_CTL_TYPE_S(CS, CLOCK_VALID):
763 case SDCA_CTL_TYPE_S(SPE, PRIVACY_LOCKSTATE):
764 case SDCA_CTL_TYPE_S(ENTITY_0, COMMIT_GROUP_MASK):
765 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_STATUS):
766 case SDCA_CTL_TYPE_S(ENTITY_0, FUNCTION_ACTION):
767 case SDCA_CTL_TYPE_S(XU, FDL_CURRENTOWNER):
768 case SDCA_CTL_TYPE_S(SPE, AUTHTX_CURRENTOWNER):
769 case SDCA_CTL_TYPE_S(SPE, AUTHRX_CURRENTOWNER):
770 case SDCA_CTL_TYPE_S(MFPU, AE_CURRENTOWNER):
771 case SDCA_CTL_TYPE_S(SMPU, HIST_CURRENTOWNER):
772 case SDCA_CTL_TYPE_S(SMPU, DTODTX_CURRENTOWNER):
773 case SDCA_CTL_TYPE_S(SMPU, DTODRX_CURRENTOWNER):
774 case SDCA_CTL_TYPE_S(SAPU, DTODTX_CURRENTOWNER):
775 case SDCA_CTL_TYPE_S(SAPU, DTODRX_CURRENTOWNER):
776 case SDCA_CTL_TYPE_S(HIDE, HIDTX_CURRENTOWNER):
777 case SDCA_CTL_TYPE_S(HIDE, HIDRX_CURRENTOWNER):
778 return SDCA_CTL_DATATYPE_BITMAP;
779 case SDCA_CTL_TYPE_S(IT, MATCHING_GUID):
780 case SDCA_CTL_TYPE_S(OT, MATCHING_GUID):
781 case SDCA_CTL_TYPE_S(ENTITY_0, MATCHING_GUID):
782 return SDCA_CTL_DATATYPE_GUID;
783 default:
784 return SDCA_CTL_DATATYPE_IMPDEF;
785 }
786 }
787
find_sdca_control_volatile(const struct sdca_entity * entity,const struct sdca_control * control)788 static bool find_sdca_control_volatile(const struct sdca_entity *entity,
789 const struct sdca_control *control)
790 {
791 switch (control->mode) {
792 case SDCA_ACCESS_MODE_DC:
793 return false;
794 case SDCA_ACCESS_MODE_RO:
795 case SDCA_ACCESS_MODE_RW1S:
796 case SDCA_ACCESS_MODE_RW1C:
797 return true;
798 default:
799 break;
800 }
801
802 switch (SDCA_CTL_TYPE(entity->type, control->sel)) {
803 case SDCA_CTL_TYPE_S(XU, FDL_CURRENTOWNER):
804 case SDCA_CTL_TYPE_S(XU, FDL_MESSAGEOFFSET):
805 case SDCA_CTL_TYPE_S(XU, FDL_MESSAGELENGTH):
806 case SDCA_CTL_TYPE_S(XU, FDL_STATUS):
807 case SDCA_CTL_TYPE_S(XU, FDL_HOST_REQUEST):
808 case SDCA_CTL_TYPE_S(SPE, AUTHTX_CURRENTOWNER):
809 case SDCA_CTL_TYPE_S(SPE, AUTHTX_MESSAGEOFFSET):
810 case SDCA_CTL_TYPE_S(SPE, AUTHTX_MESSAGELENGTH):
811 case SDCA_CTL_TYPE_S(SPE, AUTHRX_CURRENTOWNER):
812 case SDCA_CTL_TYPE_S(SPE, AUTHRX_MESSAGEOFFSET):
813 case SDCA_CTL_TYPE_S(SPE, AUTHRX_MESSAGELENGTH):
814 case SDCA_CTL_TYPE_S(MFPU, AE_CURRENTOWNER):
815 case SDCA_CTL_TYPE_S(MFPU, AE_MESSAGEOFFSET):
816 case SDCA_CTL_TYPE_S(MFPU, AE_MESSAGELENGTH):
817 case SDCA_CTL_TYPE_S(SMPU, HIST_CURRENTOWNER):
818 case SDCA_CTL_TYPE_S(SMPU, HIST_MESSAGEOFFSET):
819 case SDCA_CTL_TYPE_S(SMPU, HIST_MESSAGELENGTH):
820 case SDCA_CTL_TYPE_S(SMPU, DTODTX_CURRENTOWNER):
821 case SDCA_CTL_TYPE_S(SMPU, DTODTX_MESSAGEOFFSET):
822 case SDCA_CTL_TYPE_S(SMPU, DTODTX_MESSAGELENGTH):
823 case SDCA_CTL_TYPE_S(SMPU, DTODRX_CURRENTOWNER):
824 case SDCA_CTL_TYPE_S(SMPU, DTODRX_MESSAGEOFFSET):
825 case SDCA_CTL_TYPE_S(SMPU, DTODRX_MESSAGELENGTH):
826 case SDCA_CTL_TYPE_S(SAPU, DTODTX_CURRENTOWNER):
827 case SDCA_CTL_TYPE_S(SAPU, DTODTX_MESSAGEOFFSET):
828 case SDCA_CTL_TYPE_S(SAPU, DTODTX_MESSAGELENGTH):
829 case SDCA_CTL_TYPE_S(SAPU, DTODRX_CURRENTOWNER):
830 case SDCA_CTL_TYPE_S(SAPU, DTODRX_MESSAGEOFFSET):
831 case SDCA_CTL_TYPE_S(SAPU, DTODRX_MESSAGELENGTH):
832 case SDCA_CTL_TYPE_S(HIDE, HIDTX_CURRENTOWNER):
833 case SDCA_CTL_TYPE_S(HIDE, HIDTX_MESSAGEOFFSET):
834 case SDCA_CTL_TYPE_S(HIDE, HIDTX_MESSAGELENGTH):
835 case SDCA_CTL_TYPE_S(HIDE, HIDRX_CURRENTOWNER):
836 case SDCA_CTL_TYPE_S(HIDE, HIDRX_MESSAGEOFFSET):
837 case SDCA_CTL_TYPE_S(HIDE, HIDRX_MESSAGELENGTH):
838 return true;
839 default:
840 return false;
841 }
842 }
843
find_sdca_control_range(struct device * dev,struct fwnode_handle * control_node,struct sdca_control_range * range)844 static int find_sdca_control_range(struct device *dev,
845 struct fwnode_handle *control_node,
846 struct sdca_control_range *range)
847 {
848 u8 *range_list;
849 int num_range;
850 u16 *limits;
851 int i;
852
853 num_range = fwnode_property_count_u8(control_node, "mipi-sdca-control-range");
854 if (!num_range || num_range == -EINVAL)
855 return 0;
856 else if (num_range < 0)
857 return num_range;
858 else if (num_range < 2 * sizeof(*limits))
859 return -EINVAL;
860
861 range_list = devm_kcalloc(dev, num_range, sizeof(*range_list), GFP_KERNEL);
862 if (!range_list)
863 return -ENOMEM;
864
865 fwnode_property_read_u8_array(control_node, "mipi-sdca-control-range",
866 range_list, num_range);
867
868 limits = (u16 *)range_list;
869
870 range->cols = le16_to_cpu(limits[0]);
871 range->rows = le16_to_cpu(limits[1]);
872 range->data = (u32 *)&limits[2];
873
874 num_range = (num_range - (2 * sizeof(*limits))) / sizeof(*range->data);
875 if (num_range != range->cols * range->rows)
876 return -EINVAL;
877
878 for (i = 0; i < num_range; i++)
879 range->data[i] = le32_to_cpu(range->data[i]);
880
881 return 0;
882 }
883
find_sdca_control_value(struct device * dev,struct sdca_entity * entity,struct fwnode_handle * control_node,struct sdca_control * control,const char * const label)884 static int find_sdca_control_value(struct device *dev, struct sdca_entity *entity,
885 struct fwnode_handle *control_node,
886 struct sdca_control *control,
887 const char * const label)
888 {
889 char property[SDCA_PROPERTY_LENGTH];
890 bool global = true;
891 int ret, cn, i;
892 u32 tmp;
893
894 snprintf(property, sizeof(property), "mipi-sdca-control-%s", label);
895
896 ret = fwnode_property_read_u32(control_node, property, &tmp);
897 if (ret == -EINVAL)
898 global = false;
899 else if (ret)
900 return ret;
901
902 i = 0;
903 for_each_set_bit(cn, (unsigned long *)&control->cn_list,
904 BITS_PER_TYPE(control->cn_list)) {
905 if (!global) {
906 snprintf(property, sizeof(property),
907 "mipi-sdca-control-cn-%d-%s", cn, label);
908
909 ret = fwnode_property_read_u32(control_node, property, &tmp);
910 if (ret)
911 return ret;
912 }
913
914 control->values[i] = tmp;
915 i++;
916 }
917
918 return 0;
919 }
920
find_sdca_control_reset(const struct sdca_entity * entity,struct sdca_control * control)921 static int find_sdca_control_reset(const struct sdca_entity *entity,
922 struct sdca_control *control)
923 {
924 switch (SDCA_CTL_TYPE(entity->type, control->sel)) {
925 case SDCA_CTL_TYPE_S(FU, AGC):
926 case SDCA_CTL_TYPE_S(FU, BASS_BOOST):
927 case SDCA_CTL_TYPE_S(FU, LOUDNESS):
928 case SDCA_CTL_TYPE_S(SMPU, TRIGGER_ENABLE):
929 case SDCA_CTL_TYPE_S(GE, SELECTED_MODE):
930 case SDCA_CTL_TYPE_S(TG, TONE_DIVIDER):
931 case SDCA_CTL_TYPE_S(ENTITY_0, COMMIT_GROUP_MASK):
932 control->has_reset = true;
933 control->reset = 0;
934 break;
935 case SDCA_CTL_TYPE_S(XU, BYPASS):
936 case SDCA_CTL_TYPE_S(MFPU, BYPASS):
937 case SDCA_CTL_TYPE_S(FU, MUTE):
938 case SDCA_CTL_TYPE_S(CX, CLOCK_SELECT):
939 control->has_reset = true;
940 control->reset = 1;
941 break;
942 case SDCA_CTL_TYPE_S(PDE, REQUESTED_PS):
943 control->has_reset = true;
944 control->reset = 3;
945 break;
946 default:
947 break;
948 }
949
950 return 0;
951 }
952
find_sdca_entity_control(struct device * dev,struct sdca_entity * entity,struct fwnode_handle * control_node,struct sdca_control * control)953 static int find_sdca_entity_control(struct device *dev, struct sdca_entity *entity,
954 struct fwnode_handle *control_node,
955 struct sdca_control *control)
956 {
957 u32 tmp;
958 int ret;
959
960 ret = fwnode_property_read_u32(control_node, "mipi-sdca-control-access-mode", &tmp);
961 if (ret) {
962 dev_err(dev, "%s: control %#x: access mode missing: %d\n",
963 entity->label, control->sel, ret);
964 return ret;
965 }
966
967 control->mode = tmp;
968
969 ret = fwnode_property_read_u32(control_node, "mipi-sdca-control-access-layer", &tmp);
970 if (ret) {
971 dev_err(dev, "%s: control %#x: access layer missing: %d\n",
972 entity->label, control->sel, ret);
973 return ret;
974 }
975
976 control->layers = tmp;
977
978 ret = fwnode_property_read_u64(control_node, "mipi-sdca-control-cn-list",
979 &control->cn_list);
980 if (ret == -EINVAL) {
981 /* Spec allows not specifying cn-list if only the first number is used */
982 control->cn_list = 0x1;
983 } else if (ret || !control->cn_list) {
984 dev_err(dev, "%s: control %#x: cn list missing: %d\n",
985 entity->label, control->sel, ret);
986 return ret;
987 }
988
989 control->values = devm_kcalloc(dev, hweight64(control->cn_list),
990 sizeof(*control->values), GFP_KERNEL);
991 if (!control->values)
992 return -ENOMEM;
993
994 switch (control->mode) {
995 case SDCA_ACCESS_MODE_DC:
996 ret = find_sdca_control_value(dev, entity, control_node, control,
997 "dc-value");
998 if (ret) {
999 dev_err(dev, "%s: control %#x: dc value missing: %d\n",
1000 entity->label, control->sel, ret);
1001 return ret;
1002 }
1003
1004 control->has_fixed = true;
1005 break;
1006 case SDCA_ACCESS_MODE_RW:
1007 case SDCA_ACCESS_MODE_DUAL:
1008 ret = find_sdca_control_value(dev, entity, control_node, control,
1009 "default-value");
1010 if (!ret)
1011 control->has_default = true;
1012
1013 ret = find_sdca_control_value(dev, entity, control_node, control,
1014 "fixed-value");
1015 if (!ret)
1016 control->has_fixed = true;
1017 fallthrough;
1018 case SDCA_ACCESS_MODE_RO:
1019 ret = fwnode_property_read_u32(control_node,
1020 "mipi-sdca-control-deferrable",
1021 &tmp);
1022 if (ret == 0)
1023 control->deferrable = !!tmp;
1024 break;
1025 default:
1026 break;
1027 }
1028
1029 control->is_volatile = find_sdca_control_volatile(entity, control);
1030
1031 ret = find_sdca_control_reset(entity, control);
1032 if (ret)
1033 return ret;
1034
1035 ret = find_sdca_control_range(dev, control_node, &control->range);
1036 if (ret) {
1037 dev_err(dev, "%s: control %#x: range missing: %d\n",
1038 entity->label, control->sel, ret);
1039 return ret;
1040 }
1041
1042 ret = fwnode_property_read_u32(control_node,
1043 "mipi-sdca-control-interrupt-position",
1044 &tmp);
1045 if (!ret)
1046 control->interrupt_position = tmp;
1047 else
1048 control->interrupt_position = SDCA_NO_INTERRUPT;
1049
1050 control->label = find_sdca_control_label(dev, entity, control);
1051 if (!control->label)
1052 return -ENOMEM;
1053
1054 control->type = find_sdca_control_datatype(entity, control);
1055 control->nbits = find_sdca_control_bits(entity, control);
1056
1057 dev_dbg(dev, "%s: %s: control %#x mode %#x layers %#x cn %#llx int %d %s\n",
1058 entity->label, control->label, control->sel,
1059 control->mode, control->layers, control->cn_list,
1060 control->interrupt_position, control->deferrable ? "deferrable" : "");
1061
1062 return 0;
1063 }
1064
find_sdca_entity_controls(struct device * dev,struct fwnode_handle * entity_node,struct sdca_entity * entity)1065 static int find_sdca_entity_controls(struct device *dev,
1066 struct fwnode_handle *entity_node,
1067 struct sdca_entity *entity)
1068 {
1069 struct sdca_control *controls;
1070 int num_controls;
1071 u64 control_list;
1072 int control_sel;
1073 int i, ret;
1074
1075 ret = fwnode_property_read_u64(entity_node, "mipi-sdca-control-list", &control_list);
1076 if (ret == -EINVAL) {
1077 /* Allow missing control lists, assume no controls. */
1078 dev_warn(dev, "%s: missing control list\n", entity->label);
1079 return 0;
1080 } else if (ret) {
1081 dev_err(dev, "%s: failed to read control list: %d\n", entity->label, ret);
1082 return ret;
1083 } else if (!control_list) {
1084 return 0;
1085 }
1086
1087 num_controls = hweight64(control_list);
1088 controls = devm_kcalloc(dev, num_controls, sizeof(*controls), GFP_KERNEL);
1089 if (!controls)
1090 return -ENOMEM;
1091
1092 i = 0;
1093 for_each_set_bit(control_sel, (unsigned long *)&control_list,
1094 BITS_PER_TYPE(control_list)) {
1095 struct fwnode_handle *control_node;
1096 char control_property[SDCA_PROPERTY_LENGTH];
1097
1098 /* DisCo uses upper-case for hex numbers */
1099 snprintf(control_property, sizeof(control_property),
1100 "mipi-sdca-control-0x%X-subproperties", control_sel);
1101
1102 control_node = fwnode_get_named_child_node(entity_node, control_property);
1103 if (!control_node) {
1104 dev_err(dev, "%s: control node %s not found\n",
1105 entity->label, control_property);
1106 return -EINVAL;
1107 }
1108
1109 controls[i].sel = control_sel;
1110
1111 ret = find_sdca_entity_control(dev, entity, control_node, &controls[i]);
1112 fwnode_handle_put(control_node);
1113 if (ret)
1114 return ret;
1115
1116 i++;
1117 }
1118
1119 entity->num_controls = num_controls;
1120 entity->controls = controls;
1121
1122 return 0;
1123 }
1124
find_sdca_iot_dataport(struct sdca_entity_iot * terminal)1125 static bool find_sdca_iot_dataport(struct sdca_entity_iot *terminal)
1126 {
1127 switch (terminal->type) {
1128 case SDCA_TERM_TYPE_GENERIC:
1129 case SDCA_TERM_TYPE_ULTRASOUND:
1130 case SDCA_TERM_TYPE_CAPTURE_DIRECT_PCM_MIC:
1131 case SDCA_TERM_TYPE_RAW_PDM_MIC:
1132 case SDCA_TERM_TYPE_SPEECH:
1133 case SDCA_TERM_TYPE_VOICE:
1134 case SDCA_TERM_TYPE_SECONDARY_PCM_MIC:
1135 case SDCA_TERM_TYPE_ACOUSTIC_CONTEXT_AWARENESS:
1136 case SDCA_TERM_TYPE_DTOD_STREAM:
1137 case SDCA_TERM_TYPE_REFERENCE_STREAM:
1138 case SDCA_TERM_TYPE_SENSE_CAPTURE:
1139 case SDCA_TERM_TYPE_STREAMING_MIC:
1140 case SDCA_TERM_TYPE_OPTIMIZATION_STREAM:
1141 case SDCA_TERM_TYPE_PDM_RENDER_STREAM:
1142 case SDCA_TERM_TYPE_COMPANION_DATA:
1143 return true;
1144 default:
1145 return false;
1146 }
1147 }
1148
find_sdca_entity_iot(struct device * dev,struct fwnode_handle * entity_node,struct sdca_entity * entity)1149 static int find_sdca_entity_iot(struct device *dev,
1150 struct fwnode_handle *entity_node,
1151 struct sdca_entity *entity)
1152 {
1153 struct sdca_entity_iot *terminal = &entity->iot;
1154 u32 tmp;
1155 int ret;
1156
1157 ret = fwnode_property_read_u32(entity_node, "mipi-sdca-terminal-type", &tmp);
1158 if (ret) {
1159 dev_err(dev, "%s: terminal type missing: %d\n", entity->label, ret);
1160 return ret;
1161 }
1162
1163 terminal->type = tmp;
1164 terminal->is_dataport = find_sdca_iot_dataport(terminal);
1165
1166 if (!terminal->is_dataport) {
1167 const char *type_name = sdca_find_terminal_name(terminal->type);
1168
1169 if (type_name) {
1170 entity->label = devm_kasprintf(dev, GFP_KERNEL, "%s %s",
1171 entity->label, type_name);
1172 if (!entity->label)
1173 return -ENOMEM;
1174 }
1175 }
1176
1177 ret = fwnode_property_read_u32(entity_node,
1178 "mipi-sdca-terminal-reference-number", &tmp);
1179 if (!ret)
1180 terminal->reference = tmp;
1181
1182 ret = fwnode_property_read_u32(entity_node,
1183 "mipi-sdca-terminal-connector-type", &tmp);
1184 if (!ret)
1185 terminal->connector = tmp;
1186
1187 ret = fwnode_property_read_u32(entity_node,
1188 "mipi-sdca-terminal-transducer-count", &tmp);
1189 if (!ret)
1190 terminal->num_transducer = tmp;
1191
1192 dev_dbg(dev, "%s: terminal type %#x ref %#x conn %#x count %d\n",
1193 entity->label, terminal->type, terminal->reference,
1194 terminal->connector, terminal->num_transducer);
1195
1196 return 0;
1197 }
1198
find_sdca_entity_cs(struct device * dev,struct fwnode_handle * entity_node,struct sdca_entity * entity)1199 static int find_sdca_entity_cs(struct device *dev,
1200 struct fwnode_handle *entity_node,
1201 struct sdca_entity *entity)
1202 {
1203 struct sdca_entity_cs *clock = &entity->cs;
1204 u32 tmp;
1205 int ret;
1206
1207 ret = fwnode_property_read_u32(entity_node, "mipi-sdca-cs-type", &tmp);
1208 if (ret) {
1209 dev_err(dev, "%s: clock type missing: %d\n", entity->label, ret);
1210 return ret;
1211 }
1212
1213 clock->type = tmp;
1214
1215 ret = fwnode_property_read_u32(entity_node,
1216 "mipi-sdca-clock-valid-max-delay", &tmp);
1217 if (!ret)
1218 clock->max_delay = tmp;
1219
1220 dev_dbg(dev, "%s: clock type %#x delay %d\n", entity->label,
1221 clock->type, clock->max_delay);
1222
1223 return 0;
1224 }
1225
find_sdca_entity_pde(struct device * dev,struct fwnode_handle * entity_node,struct sdca_entity * entity)1226 static int find_sdca_entity_pde(struct device *dev,
1227 struct fwnode_handle *entity_node,
1228 struct sdca_entity *entity)
1229 {
1230 static const int mult_delay = 3;
1231 struct sdca_entity_pde *power = &entity->pde;
1232 struct sdca_pde_delay *delays;
1233 int num_delays;
1234 int i, j;
1235
1236 num_delays = fwnode_property_count_u32(entity_node,
1237 "mipi-sdca-powerdomain-transition-max-delay");
1238 if (num_delays <= 0) {
1239 dev_err(dev, "%s: max delay list missing: %d\n",
1240 entity->label, num_delays);
1241 return -EINVAL;
1242 } else if (num_delays % mult_delay != 0) {
1243 dev_err(dev, "%s: delays not multiple of %d\n",
1244 entity->label, mult_delay);
1245 return -EINVAL;
1246 } else if (num_delays > SDCA_MAX_DELAY_COUNT) {
1247 dev_err(dev, "%s: maximum number of transition delays exceeded\n",
1248 entity->label);
1249 return -EINVAL;
1250 }
1251
1252 u32 *delay_list __free(kfree) = kzalloc_objs(*delay_list, num_delays);
1253 if (!delay_list)
1254 return -ENOMEM;
1255
1256 fwnode_property_read_u32_array(entity_node,
1257 "mipi-sdca-powerdomain-transition-max-delay",
1258 delay_list, num_delays);
1259
1260 num_delays /= mult_delay;
1261
1262 delays = devm_kcalloc(dev, num_delays, sizeof(*delays), GFP_KERNEL);
1263 if (!delays)
1264 return -ENOMEM;
1265
1266 for (i = 0, j = 0; i < num_delays; i++) {
1267 delays[i].from_ps = delay_list[j++];
1268 delays[i].to_ps = delay_list[j++];
1269 delays[i].us = delay_list[j++];
1270
1271 dev_dbg(dev, "%s: from %#x to %#x delay %dus\n", entity->label,
1272 delays[i].from_ps, delays[i].to_ps, delays[i].us);
1273 }
1274
1275 power->num_max_delay = num_delays;
1276 power->max_delay = delays;
1277
1278 return 0;
1279 }
1280
1281 struct raw_ge_mode {
1282 u8 val;
1283 u8 num_controls;
1284 struct {
1285 u8 id;
1286 u8 sel;
1287 u8 cn;
1288 __le32 val;
1289 } __packed controls[] __counted_by(num_controls);
1290 } __packed;
1291
find_sdca_entity_ge(struct device * dev,struct fwnode_handle * entity_node,struct sdca_entity * entity)1292 static int find_sdca_entity_ge(struct device *dev,
1293 struct fwnode_handle *entity_node,
1294 struct sdca_entity *entity)
1295 {
1296 struct sdca_entity_ge *group = &entity->ge;
1297 u8 *affected_iter;
1298 int num_affected;
1299 int i, j;
1300
1301 num_affected = fwnode_property_count_u8(entity_node,
1302 "mipi-sdca-ge-selectedmode-controls-affected");
1303 if (!num_affected) {
1304 return 0;
1305 } else if (num_affected < 0) {
1306 dev_err(dev, "%s: failed to read affected controls: %d\n",
1307 entity->label, num_affected);
1308 return num_affected;
1309 } else if (num_affected > SDCA_MAX_AFFECTED_COUNT) {
1310 dev_err(dev, "%s: maximum affected controls size exceeded\n",
1311 entity->label);
1312 return -EINVAL;
1313 }
1314
1315 u8 *affected_list __free(kfree) = kzalloc_objs(*affected_list,
1316 num_affected);
1317 if (!affected_list)
1318 return -ENOMEM;
1319
1320 fwnode_property_read_u8_array(entity_node,
1321 "mipi-sdca-ge-selectedmode-controls-affected",
1322 affected_list, num_affected);
1323
1324 group->num_modes = *affected_list;
1325 affected_iter = affected_list + 1;
1326
1327 group->modes = devm_kcalloc(dev, group->num_modes, sizeof(*group->modes),
1328 GFP_KERNEL);
1329 if (!group->modes)
1330 return -ENOMEM;
1331
1332 for (i = 0; i < group->num_modes; i++) {
1333 struct raw_ge_mode *raw = (struct raw_ge_mode *)affected_iter;
1334 struct sdca_ge_mode *mode = &group->modes[i];
1335
1336 affected_iter += sizeof(*raw);
1337 if (affected_iter > affected_list + num_affected)
1338 goto bad_list;
1339
1340 mode->val = raw->val;
1341 mode->num_controls = raw->num_controls;
1342
1343 affected_iter += mode->num_controls * sizeof(raw->controls[0]);
1344 if (affected_iter > affected_list + num_affected)
1345 goto bad_list;
1346
1347 mode->controls = devm_kcalloc(dev, mode->num_controls,
1348 sizeof(*mode->controls), GFP_KERNEL);
1349 if (!mode->controls)
1350 return -ENOMEM;
1351
1352 for (j = 0; j < mode->num_controls; j++) {
1353 mode->controls[j].id = raw->controls[j].id;
1354 mode->controls[j].sel = raw->controls[j].sel;
1355 mode->controls[j].cn = raw->controls[j].cn;
1356 mode->controls[j].val = le32_to_cpu(raw->controls[j].val);
1357 }
1358 }
1359
1360 return 0;
1361
1362 bad_list:
1363 dev_err(dev, "%s: malformed affected controls list\n", entity->label);
1364 return -EINVAL;
1365 }
1366
find_sdca_entity_hide(struct device * dev,struct fwnode_handle * entity_node,struct sdca_entity * entity)1367 static int find_sdca_entity_hide(struct device *dev,
1368 struct fwnode_handle *entity_node,
1369 struct sdca_entity *entity)
1370 {
1371 struct sdca_entity_hide *hide = &entity->hide;
1372 int num_reports, ret;
1373 unsigned int delay;
1374
1375 ret = fwnode_property_read_u32(entity_node,
1376 "mipi-sdca-RxUMP-ownership-transition-max-delay",
1377 &delay);
1378 if (!ret)
1379 hide->max_delay = delay;
1380
1381 num_reports = fwnode_property_count_u32(entity_node,
1382 "mipi-sdca-HIDTx-supported-report-ids");
1383 if (num_reports < 0 && num_reports != -EINVAL) {
1384 dev_err(dev, "%pfwP: failed to read hid tx ids: %d\n",
1385 entity_node, num_reports);
1386 return num_reports;
1387 } else if (num_reports > 0) {
1388 hide->num_hidtx_ids = num_reports;
1389 hide->hidtx_ids = devm_kcalloc(dev, hide->num_hidtx_ids,
1390 sizeof(*hide->hidtx_ids), GFP_KERNEL);
1391 if (!hide->hidtx_ids)
1392 return -ENOMEM;
1393
1394 fwnode_property_read_u32_array(entity_node,
1395 "mipi-sdca-HIDTx-supported-report-ids",
1396 hide->hidtx_ids, hide->num_hidtx_ids);
1397 }
1398
1399 num_reports = fwnode_property_count_u32(entity_node,
1400 "mipi-sdca-HIDRx-supported-report-ids");
1401 if (num_reports < 0 && num_reports != -EINVAL) {
1402 dev_err(dev, "%pfwP: failed to read hid rx ids: %d\n",
1403 entity_node, num_reports);
1404 return num_reports;
1405 } else if (num_reports > 0) {
1406 hide->num_hidrx_ids = num_reports;
1407 hide->hidrx_ids = devm_kcalloc(dev, hide->num_hidrx_ids,
1408 sizeof(*hide->hidrx_ids), GFP_KERNEL);
1409 if (!hide->hidrx_ids)
1410 return -ENOMEM;
1411
1412 fwnode_property_read_u32_array(entity_node,
1413 "mipi-sdca-HIDRx-supported-report-ids",
1414 hide->hidrx_ids, hide->num_hidrx_ids);
1415 }
1416
1417 /*
1418 * FIXME: This should probably link to the actual sdca_function_data pointer,
1419 * but updating to do so should probably wait until we have a user.
1420 */
1421 num_reports = fwnode_property_count_u32(entity_node,
1422 "mipi-sdca-hide-related-audio-function-list");
1423 if (num_reports <= 0) {
1424 dev_err(dev, "%pfwP: audio function numbers list missing: %d\n",
1425 entity_node, num_reports);
1426 return -EINVAL;
1427 } else if (num_reports > ARRAY_SIZE(hide->af_number_list)) {
1428 dev_err(dev, "%pfwP: maximum number of audio function exceeded\n",
1429 entity_node);
1430 return -EINVAL;
1431 }
1432
1433 hide->hide_reside_function_num = num_reports;
1434 fwnode_property_read_u32_array(entity_node,
1435 "mipi-sdca-hide-related-audio-function-list",
1436 hide->af_number_list, num_reports);
1437
1438 return 0;
1439 }
1440
find_sdca_entity_xu(struct device * dev,struct fwnode_handle * entity_node,struct sdca_entity * entity)1441 static int find_sdca_entity_xu(struct device *dev,
1442 struct fwnode_handle *entity_node,
1443 struct sdca_entity *entity)
1444 {
1445 struct sdca_entity_xu *xu = &entity->xu;
1446 u32 tmp;
1447 int ret;
1448
1449 ret = fwnode_property_read_u32(entity_node,
1450 "mipi-sdca-RxUMP-ownership-transition-max-delay",
1451 &tmp);
1452 if (!ret)
1453 xu->max_delay = tmp;
1454
1455 ret = fwnode_property_read_u32(entity_node, "mipi-sdca-FDL-reset-mechanism",
1456 &tmp);
1457 if (!ret)
1458 xu->reset_mechanism = tmp;
1459
1460 return 0;
1461 }
1462
find_sdca_entity(struct device * dev,struct sdca_function_data * function,struct fwnode_handle * function_node,struct fwnode_handle * entity_node,struct sdca_entity * entity)1463 static int find_sdca_entity(struct device *dev, struct sdca_function_data *function,
1464 struct fwnode_handle *function_node,
1465 struct fwnode_handle *entity_node,
1466 struct sdca_entity *entity)
1467 {
1468 u32 tmp;
1469 int ret;
1470
1471 ret = fwnode_property_read_string(entity_node, "mipi-sdca-entity-label",
1472 &entity->label);
1473 if (ret) {
1474 dev_err(dev, "%pfwP: entity %#x: label missing: %d\n",
1475 function_node, entity->id, ret);
1476 return ret;
1477 }
1478
1479 if (function->desc->duplicate) {
1480 entity->label = devm_kasprintf(dev, GFP_KERNEL, "%d %s",
1481 function->desc->adr, entity->label);
1482 if (!entity->label)
1483 return -ENOMEM;
1484 }
1485
1486 ret = fwnode_property_read_u32(entity_node, "mipi-sdca-entity-type", &tmp);
1487 if (ret) {
1488 dev_err(dev, "%s: type missing: %d\n", entity->label, ret);
1489 return ret;
1490 }
1491
1492 entity->type = tmp;
1493
1494 dev_dbg(dev, "%s: entity %#x type %#x\n",
1495 entity->label, entity->id, entity->type);
1496
1497 switch (entity->type) {
1498 case SDCA_ENTITY_TYPE_IT:
1499 case SDCA_ENTITY_TYPE_OT:
1500 ret = find_sdca_entity_iot(dev, entity_node, entity);
1501 break;
1502 case SDCA_ENTITY_TYPE_XU:
1503 ret = find_sdca_entity_xu(dev, entity_node, entity);
1504 break;
1505 case SDCA_ENTITY_TYPE_CS:
1506 ret = find_sdca_entity_cs(dev, entity_node, entity);
1507 break;
1508 case SDCA_ENTITY_TYPE_PDE:
1509 ret = find_sdca_entity_pde(dev, entity_node, entity);
1510 break;
1511 case SDCA_ENTITY_TYPE_GE:
1512 ret = find_sdca_entity_ge(dev, entity_node, entity);
1513 break;
1514 case SDCA_ENTITY_TYPE_HIDE:
1515 ret = find_sdca_entity_hide(dev, entity_node, entity);
1516 break;
1517 default:
1518 break;
1519 }
1520 if (ret)
1521 return ret;
1522
1523 ret = find_sdca_entity_controls(dev, entity_node, entity);
1524 if (ret)
1525 return ret;
1526
1527 return 0;
1528 }
1529
find_sdca_entities(struct device * dev,struct fwnode_handle * function_node,struct sdca_function_data * function)1530 static int find_sdca_entities(struct device *dev, struct fwnode_handle *function_node,
1531 struct sdca_function_data *function)
1532 {
1533 struct sdca_entity *entities;
1534 int num_entities;
1535 int i, ret;
1536
1537 num_entities = fwnode_property_count_u32(function_node,
1538 "mipi-sdca-entity-id-list");
1539 if (num_entities <= 0) {
1540 dev_err(dev, "%pfwP: entity id list missing: %d\n",
1541 function_node, num_entities);
1542 return -EINVAL;
1543 } else if (num_entities > SDCA_MAX_ENTITY_COUNT) {
1544 dev_err(dev, "%pfwP: maximum number of entities exceeded\n",
1545 function_node);
1546 return -EINVAL;
1547 }
1548
1549 /* Add 1 to make space for Entity 0 */
1550 entities = devm_kcalloc(dev, num_entities + 1, sizeof(*entities), GFP_KERNEL);
1551 if (!entities)
1552 return -ENOMEM;
1553
1554 u32 *entity_list __free(kfree) = kzalloc_objs(*entity_list,
1555 num_entities);
1556 if (!entity_list)
1557 return -ENOMEM;
1558
1559 fwnode_property_read_u32_array(function_node, "mipi-sdca-entity-id-list",
1560 entity_list, num_entities);
1561
1562 for (i = 0; i < num_entities; i++)
1563 entities[i].id = entity_list[i];
1564
1565 /* now read subproperties */
1566 for (i = 0; i < num_entities; i++) {
1567 char entity_property[SDCA_PROPERTY_LENGTH];
1568 struct fwnode_handle *entity_node;
1569
1570 /* DisCo uses upper-case for hex numbers */
1571 snprintf(entity_property, sizeof(entity_property),
1572 "mipi-sdca-entity-id-0x%X-subproperties", entities[i].id);
1573
1574 entity_node = fwnode_get_named_child_node(function_node, entity_property);
1575 if (!entity_node) {
1576 dev_err(dev, "%pfwP: entity node %s not found\n",
1577 function_node, entity_property);
1578 return -EINVAL;
1579 }
1580
1581 ret = find_sdca_entity(dev, function, function_node,
1582 entity_node, &entities[i]);
1583 fwnode_handle_put(entity_node);
1584 if (ret)
1585 return ret;
1586 }
1587
1588 /*
1589 * Add Entity 0 at end of the array, makes it easy to skip during
1590 * all the Entity searches involved in creating connections.
1591 */
1592 entities[num_entities].label = "entity0";
1593
1594 ret = find_sdca_entity_controls(dev, function_node, &entities[num_entities]);
1595 if (ret)
1596 return ret;
1597
1598 function->num_entities = num_entities + 1;
1599 function->entities = entities;
1600
1601 return 0;
1602 }
1603
sdca_find_entity_by_label(struct sdca_function_data * function,const char * entity_label)1604 struct sdca_entity *sdca_find_entity_by_label(struct sdca_function_data *function,
1605 const char *entity_label)
1606 {
1607 struct sdca_entity *entity = NULL;
1608 char tmp[64];
1609 int i;
1610
1611 if (function->desc->duplicate) {
1612 snprintf(tmp, sizeof(tmp), "%d %s", function->desc->adr, entity_label);
1613 entity_label = tmp;
1614 }
1615
1616 for (i = 0; i < function->num_entities; i++) {
1617 entity = &function->entities[i];
1618
1619 /* check whole string first*/
1620 if (!strcmp(entity->label, entity_label))
1621 return entity;
1622 }
1623
1624 for (i = 0; i < function->num_entities; i++) {
1625 entity = &function->entities[i];
1626
1627 if (!strncmp(entity->label, entity_label, strlen(entity_label)))
1628 return entity;
1629 }
1630
1631 return NULL;
1632 }
1633 EXPORT_SYMBOL_NS(sdca_find_entity_by_label, "SND_SOC_SDCA");
1634
find_sdca_entity_by_id(struct sdca_function_data * function,const int id)1635 static struct sdca_entity *find_sdca_entity_by_id(struct sdca_function_data *function,
1636 const int id)
1637 {
1638 int i;
1639
1640 for (i = 0; i < function->num_entities; i++) {
1641 struct sdca_entity *entity = &function->entities[i];
1642
1643 if (entity->id == id)
1644 return entity;
1645 }
1646
1647 return NULL;
1648 }
1649
find_sdca_entity_connection_iot(struct device * dev,struct sdca_function_data * function,struct fwnode_handle * entity_node,struct sdca_entity * entity)1650 static int find_sdca_entity_connection_iot(struct device *dev,
1651 struct sdca_function_data *function,
1652 struct fwnode_handle *entity_node,
1653 struct sdca_entity *entity)
1654 {
1655 struct sdca_entity_iot *terminal = &entity->iot;
1656 struct fwnode_handle *clock_node;
1657 struct sdca_entity *clock_entity;
1658 const char *clock_label;
1659 int ret;
1660
1661 clock_node = fwnode_get_named_child_node(entity_node,
1662 "mipi-sdca-terminal-clock-connection");
1663 if (!clock_node)
1664 return 0;
1665
1666 ret = fwnode_property_read_string(clock_node, "mipi-sdca-entity-label",
1667 &clock_label);
1668 if (ret) {
1669 dev_err(dev, "%s: clock label missing: %d\n", entity->label, ret);
1670 fwnode_handle_put(clock_node);
1671 return ret;
1672 }
1673
1674 clock_entity = sdca_find_entity_by_label(function, clock_label);
1675 if (!clock_entity) {
1676 dev_err(dev, "%s: failed to find clock with label %s\n",
1677 entity->label, clock_label);
1678 fwnode_handle_put(clock_node);
1679 return -EINVAL;
1680 }
1681
1682 terminal->clock = clock_entity;
1683
1684 dev_dbg(dev, "%s -> %s\n", clock_entity->label, entity->label);
1685
1686 fwnode_handle_put(clock_node);
1687 return 0;
1688 }
1689
find_sdca_entity_connection_pde(struct device * dev,struct sdca_function_data * function,struct fwnode_handle * entity_node,struct sdca_entity * entity)1690 static int find_sdca_entity_connection_pde(struct device *dev,
1691 struct sdca_function_data *function,
1692 struct fwnode_handle *entity_node,
1693 struct sdca_entity *entity)
1694 {
1695 struct sdca_entity_pde *power = &entity->pde;
1696 struct sdca_entity **managed;
1697 int num_managed;
1698 int i;
1699
1700 num_managed = fwnode_property_count_u32(entity_node,
1701 "mipi-sdca-powerdomain-managed-list");
1702 if (!num_managed) {
1703 return 0;
1704 } else if (num_managed < 0) {
1705 dev_err(dev, "%s: managed list missing: %d\n", entity->label, num_managed);
1706 return num_managed;
1707 } else if (num_managed > SDCA_MAX_ENTITY_COUNT) {
1708 dev_err(dev, "%s: maximum number of managed entities exceeded\n",
1709 entity->label);
1710 return -EINVAL;
1711 }
1712
1713 managed = devm_kcalloc(dev, num_managed, sizeof(*managed), GFP_KERNEL);
1714 if (!managed)
1715 return -ENOMEM;
1716
1717 u32 *managed_list __free(kfree) = kzalloc_objs(*managed_list,
1718 num_managed);
1719 if (!managed_list)
1720 return -ENOMEM;
1721
1722 fwnode_property_read_u32_array(entity_node,
1723 "mipi-sdca-powerdomain-managed-list",
1724 managed_list, num_managed);
1725
1726 for (i = 0; i < num_managed; i++) {
1727 managed[i] = find_sdca_entity_by_id(function, managed_list[i]);
1728 if (!managed[i]) {
1729 dev_err(dev, "%s: failed to find entity with id %#x\n",
1730 entity->label, managed_list[i]);
1731 return -EINVAL;
1732 }
1733
1734 dev_dbg(dev, "%s -> %s\n", managed[i]->label, entity->label);
1735 }
1736
1737 power->num_managed = num_managed;
1738 power->managed = managed;
1739
1740 return 0;
1741 }
1742
find_sdca_entity_connection_ge(struct device * dev,struct sdca_function_data * function,struct fwnode_handle * entity_node,struct sdca_entity * entity)1743 static int find_sdca_entity_connection_ge(struct device *dev,
1744 struct sdca_function_data *function,
1745 struct fwnode_handle *entity_node,
1746 struct sdca_entity *entity)
1747 {
1748 int i, j;
1749
1750 for (i = 0; i < entity->ge.num_modes; i++) {
1751 struct sdca_ge_mode *mode = &entity->ge.modes[i];
1752
1753 for (j = 0; j < mode->num_controls; j++) {
1754 struct sdca_ge_control *affected = &mode->controls[j];
1755 struct sdca_entity *managed;
1756
1757 managed = find_sdca_entity_by_id(function, affected->id);
1758 if (!managed) {
1759 dev_err(dev, "%s: failed to find entity with id %#x\n",
1760 entity->label, affected->id);
1761 return -EINVAL;
1762 }
1763
1764 if (managed->group && managed->group != entity) {
1765 dev_err(dev,
1766 "%s: entity controlled by two groups %s, %s\n",
1767 managed->label, managed->group->label,
1768 entity->label);
1769 return -EINVAL;
1770 }
1771
1772 managed->group = entity;
1773 }
1774 }
1775
1776 return 0;
1777 }
1778
find_sdca_entity_connection(struct device * dev,struct sdca_function_data * function,struct fwnode_handle * entity_node,struct sdca_entity * entity)1779 static int find_sdca_entity_connection(struct device *dev,
1780 struct sdca_function_data *function,
1781 struct fwnode_handle *entity_node,
1782 struct sdca_entity *entity)
1783 {
1784 struct sdca_entity **pins;
1785 int num_pins, pin;
1786 u64 pin_list;
1787 int i, ret;
1788
1789 switch (entity->type) {
1790 case SDCA_ENTITY_TYPE_IT:
1791 case SDCA_ENTITY_TYPE_OT:
1792 ret = find_sdca_entity_connection_iot(dev, function,
1793 entity_node, entity);
1794 break;
1795 case SDCA_ENTITY_TYPE_PDE:
1796 ret = find_sdca_entity_connection_pde(dev, function,
1797 entity_node, entity);
1798 break;
1799 case SDCA_ENTITY_TYPE_GE:
1800 ret = find_sdca_entity_connection_ge(dev, function,
1801 entity_node, entity);
1802 break;
1803 default:
1804 ret = 0;
1805 break;
1806 }
1807 if (ret)
1808 return ret;
1809
1810 ret = fwnode_property_read_u64(entity_node, "mipi-sdca-input-pin-list", &pin_list);
1811 if (ret == -EINVAL) {
1812 /* Allow missing pin lists, assume no pins. */
1813 return 0;
1814 } else if (ret) {
1815 dev_err(dev, "%s: failed to read pin list: %d\n", entity->label, ret);
1816 return ret;
1817 } else if (pin_list & BIT(0)) {
1818 /*
1819 * Each bit set in the pin-list refers to an entity_id in this
1820 * Function. Entity 0 is an illegal connection since it is used
1821 * for Function-level configurations.
1822 */
1823 dev_err(dev, "%s: pin 0 used as input\n", entity->label);
1824 return -EINVAL;
1825 } else if (!pin_list) {
1826 return 0;
1827 }
1828
1829 num_pins = hweight64(pin_list);
1830 pins = devm_kcalloc(dev, num_pins, sizeof(*pins), GFP_KERNEL);
1831 if (!pins)
1832 return -ENOMEM;
1833
1834 i = 0;
1835 for_each_set_bit(pin, (unsigned long *)&pin_list, BITS_PER_TYPE(pin_list)) {
1836 char pin_property[SDCA_PROPERTY_LENGTH];
1837 struct fwnode_handle *connected_node;
1838 struct sdca_entity *connected_entity;
1839 const char *connected_label;
1840
1841 snprintf(pin_property, sizeof(pin_property), "mipi-sdca-input-pin-%d", pin);
1842
1843 connected_node = fwnode_get_named_child_node(entity_node, pin_property);
1844 if (!connected_node) {
1845 dev_err(dev, "%s: pin node %s not found\n",
1846 entity->label, pin_property);
1847 return -EINVAL;
1848 }
1849
1850 ret = fwnode_property_read_string(connected_node, "mipi-sdca-entity-label",
1851 &connected_label);
1852 if (ret) {
1853 dev_err(dev, "%s: pin %d label missing: %d\n",
1854 entity->label, pin, ret);
1855 fwnode_handle_put(connected_node);
1856 return ret;
1857 }
1858
1859 connected_entity = sdca_find_entity_by_label(function, connected_label);
1860 if (!connected_entity) {
1861 dev_err(dev, "%s: failed to find entity with label %s\n",
1862 entity->label, connected_label);
1863 fwnode_handle_put(connected_node);
1864 return -EINVAL;
1865 }
1866
1867 pins[i] = connected_entity;
1868
1869 dev_dbg(dev, "%s -> %s\n", connected_entity->label, entity->label);
1870
1871 i++;
1872 fwnode_handle_put(connected_node);
1873 }
1874
1875 entity->num_sources = num_pins;
1876 entity->sources = pins;
1877
1878 return 0;
1879 }
1880
find_sdca_connections(struct device * dev,struct fwnode_handle * function_node,struct sdca_function_data * function)1881 static int find_sdca_connections(struct device *dev,
1882 struct fwnode_handle *function_node,
1883 struct sdca_function_data *function)
1884 {
1885 int i;
1886
1887 /* Entity 0 cannot have connections */
1888 for (i = 0; i < function->num_entities - 1; i++) {
1889 struct sdca_entity *entity = &function->entities[i];
1890 char entity_property[SDCA_PROPERTY_LENGTH];
1891 struct fwnode_handle *entity_node;
1892 int ret;
1893
1894 /* DisCo uses upper-case for hex numbers */
1895 snprintf(entity_property, sizeof(entity_property),
1896 "mipi-sdca-entity-id-0x%X-subproperties",
1897 entity->id);
1898
1899 entity_node = fwnode_get_named_child_node(function_node, entity_property);
1900 if (!entity_node) {
1901 dev_err(dev, "%pfwP: entity node %s not found\n",
1902 function_node, entity_property);
1903 return -EINVAL;
1904 }
1905
1906 ret = find_sdca_entity_connection(dev, function, entity_node, entity);
1907 fwnode_handle_put(entity_node);
1908 if (ret)
1909 return ret;
1910 }
1911
1912 return 0;
1913 }
1914
find_sdca_cluster_channel(struct device * dev,struct sdca_cluster * cluster,struct fwnode_handle * channel_node,struct sdca_channel * channel)1915 static int find_sdca_cluster_channel(struct device *dev,
1916 struct sdca_cluster *cluster,
1917 struct fwnode_handle *channel_node,
1918 struct sdca_channel *channel)
1919 {
1920 u32 tmp;
1921 int ret;
1922
1923 ret = fwnode_property_read_u32(channel_node, "mipi-sdca-cluster-channel-id", &tmp);
1924 if (ret) {
1925 dev_err(dev, "cluster %#x: missing channel id: %d\n",
1926 cluster->id, ret);
1927 return ret;
1928 }
1929
1930 channel->id = tmp;
1931
1932 ret = fwnode_property_read_u32(channel_node,
1933 "mipi-sdca-cluster-channel-purpose",
1934 &tmp);
1935 if (ret) {
1936 dev_err(dev, "cluster %#x: channel %#x: missing purpose: %d\n",
1937 cluster->id, channel->id, ret);
1938 return ret;
1939 }
1940
1941 channel->purpose = tmp;
1942
1943 ret = fwnode_property_read_u32(channel_node,
1944 "mipi-sdca-cluster-channel-relationship",
1945 &tmp);
1946 if (ret) {
1947 dev_err(dev, "cluster %#x: channel %#x: missing relationship: %d\n",
1948 cluster->id, channel->id, ret);
1949 return ret;
1950 }
1951
1952 channel->relationship = tmp;
1953
1954 dev_dbg(dev, "cluster %#x: channel id %#x purpose %#x relationship %#x\n",
1955 cluster->id, channel->id, channel->purpose, channel->relationship);
1956
1957 return 0;
1958 }
1959
find_sdca_cluster_channels(struct device * dev,struct fwnode_handle * cluster_node,struct sdca_cluster * cluster)1960 static int find_sdca_cluster_channels(struct device *dev,
1961 struct fwnode_handle *cluster_node,
1962 struct sdca_cluster *cluster)
1963 {
1964 struct sdca_channel *channels;
1965 u32 num_channels;
1966 int i, ret;
1967
1968 ret = fwnode_property_read_u32(cluster_node, "mipi-sdca-channel-count",
1969 &num_channels);
1970 if (ret < 0) {
1971 dev_err(dev, "cluster %#x: failed to read channel list: %d\n",
1972 cluster->id, ret);
1973 return ret;
1974 } else if (num_channels > SDCA_MAX_CHANNEL_COUNT) {
1975 dev_err(dev, "cluster %#x: maximum number of channels exceeded\n",
1976 cluster->id);
1977 return -EINVAL;
1978 }
1979
1980 channels = devm_kcalloc(dev, num_channels, sizeof(*channels), GFP_KERNEL);
1981 if (!channels)
1982 return -ENOMEM;
1983
1984 for (i = 0; i < num_channels; i++) {
1985 char channel_property[SDCA_PROPERTY_LENGTH];
1986 struct fwnode_handle *channel_node;
1987
1988 /* DisCo uses upper-case for hex numbers */
1989 snprintf(channel_property, sizeof(channel_property),
1990 "mipi-sdca-channel-%d-subproperties", i + 1);
1991
1992 channel_node = fwnode_get_named_child_node(cluster_node, channel_property);
1993 if (!channel_node) {
1994 dev_err(dev, "cluster %#x: channel node %s not found\n",
1995 cluster->id, channel_property);
1996 return -EINVAL;
1997 }
1998
1999 ret = find_sdca_cluster_channel(dev, cluster, channel_node, &channels[i]);
2000 fwnode_handle_put(channel_node);
2001 if (ret)
2002 return ret;
2003 }
2004
2005 cluster->num_channels = num_channels;
2006 cluster->channels = channels;
2007
2008 return 0;
2009 }
2010
find_sdca_clusters(struct device * dev,struct fwnode_handle * function_node,struct sdca_function_data * function)2011 static int find_sdca_clusters(struct device *dev,
2012 struct fwnode_handle *function_node,
2013 struct sdca_function_data *function)
2014 {
2015 struct sdca_cluster *clusters;
2016 int num_clusters;
2017 int i, ret;
2018
2019 num_clusters = fwnode_property_count_u32(function_node, "mipi-sdca-cluster-id-list");
2020 if (!num_clusters || num_clusters == -EINVAL) {
2021 return 0;
2022 } else if (num_clusters < 0) {
2023 dev_err(dev, "%pfwP: failed to read cluster id list: %d\n",
2024 function_node, num_clusters);
2025 return num_clusters;
2026 } else if (num_clusters > SDCA_MAX_CLUSTER_COUNT) {
2027 dev_err(dev, "%pfwP: maximum number of clusters exceeded\n", function_node);
2028 return -EINVAL;
2029 }
2030
2031 clusters = devm_kcalloc(dev, num_clusters, sizeof(*clusters), GFP_KERNEL);
2032 if (!clusters)
2033 return -ENOMEM;
2034
2035 u32 *cluster_list __free(kfree) = kzalloc_objs(*cluster_list,
2036 num_clusters);
2037 if (!cluster_list)
2038 return -ENOMEM;
2039
2040 fwnode_property_read_u32_array(function_node, "mipi-sdca-cluster-id-list",
2041 cluster_list, num_clusters);
2042
2043 for (i = 0; i < num_clusters; i++)
2044 clusters[i].id = cluster_list[i];
2045
2046 /* now read subproperties */
2047 for (i = 0; i < num_clusters; i++) {
2048 char cluster_property[SDCA_PROPERTY_LENGTH];
2049 struct fwnode_handle *cluster_node;
2050
2051 /* DisCo uses upper-case for hex numbers */
2052 snprintf(cluster_property, sizeof(cluster_property),
2053 "mipi-sdca-cluster-id-0x%X-subproperties", clusters[i].id);
2054
2055 cluster_node = fwnode_get_named_child_node(function_node, cluster_property);
2056 if (!cluster_node) {
2057 dev_err(dev, "%pfwP: cluster node %s not found\n",
2058 function_node, cluster_property);
2059 return -EINVAL;
2060 }
2061
2062 ret = find_sdca_cluster_channels(dev, cluster_node, &clusters[i]);
2063 fwnode_handle_put(cluster_node);
2064 if (ret)
2065 return ret;
2066 }
2067
2068 function->num_clusters = num_clusters;
2069 function->clusters = clusters;
2070
2071 return 0;
2072 }
2073
find_sdca_filesets(struct device * dev,struct fwnode_handle * function_node,struct sdca_function_data * function)2074 static int find_sdca_filesets(struct device *dev, struct fwnode_handle *function_node,
2075 struct sdca_function_data *function)
2076 {
2077 static const int mult_fileset = 3;
2078 char fileset_name[SDCA_PROPERTY_LENGTH];
2079 struct sdca_fdl_set *sets;
2080 int num_sets;
2081 int i, j;
2082
2083 num_sets = fwnode_property_count_u32(function_node,
2084 "mipi-sdca-file-set-id-list");
2085 if (num_sets == 0 || num_sets == -EINVAL) {
2086 dev_dbg(dev, "%pfwP: file set id list missing\n", function_node);
2087 return 0;
2088 } else if (num_sets < 0) {
2089 dev_err(dev, "%pfwP: failed to read file set list: %d\n",
2090 function_node, num_sets);
2091 return num_sets;
2092 }
2093
2094 u32 *filesets_list __free(kfree) = kcalloc(num_sets, sizeof(u32),
2095 GFP_KERNEL);
2096 if (!filesets_list)
2097 return -ENOMEM;
2098
2099 fwnode_property_read_u32_array(function_node, "mipi-sdca-file-set-id-list",
2100 filesets_list, num_sets);
2101
2102 sets = devm_kcalloc(dev, num_sets, sizeof(*sets), GFP_KERNEL);
2103 if (!sets)
2104 return -ENOMEM;
2105
2106 for (i = 0; i < num_sets; i++) {
2107 struct sdca_fdl_set *set = &sets[i];
2108 struct sdca_fdl_file *files;
2109 int num_files, num_entries;
2110
2111 snprintf(fileset_name, sizeof(fileset_name),
2112 "mipi-sdca-file-set-id-0x%X", filesets_list[i]);
2113
2114 num_entries = fwnode_property_count_u32(function_node, fileset_name);
2115 if (num_entries <= 0) {
2116 dev_err(dev, "%pfwP: file set %d missing entries: %d\n",
2117 function_node, filesets_list[i], num_entries);
2118 return -EINVAL;
2119 } else if (num_entries % mult_fileset != 0) {
2120 dev_err(dev, "%pfwP: file set %d files not multiple of %d\n",
2121 function_node, filesets_list[i], mult_fileset);
2122 return -EINVAL;
2123 }
2124
2125 dev_dbg(dev, "fileset: %#x\n", filesets_list[i]);
2126
2127 files = devm_kcalloc(dev, num_entries / mult_fileset,
2128 sizeof(*files), GFP_KERNEL);
2129 if (!files)
2130 return -ENOMEM;
2131
2132 u32 *fileset_entries __free(kfree) = kcalloc(num_entries, sizeof(u32),
2133 GFP_KERNEL);
2134 if (!fileset_entries)
2135 return -ENOMEM;
2136
2137 fwnode_property_read_u32_array(function_node, fileset_name,
2138 fileset_entries, num_entries);
2139
2140 for (j = 0, num_files = 0; j < num_entries; num_files++) {
2141 struct sdca_fdl_file *file = &files[num_files];
2142
2143 file->vendor_id = fileset_entries[j++];
2144 file->file_id = fileset_entries[j++];
2145 file->fdl_offset = fileset_entries[j++];
2146
2147 dev_dbg(dev, "file: %#x, vendor: %#x, offset: %#x\n",
2148 file->file_id, file->vendor_id, file->fdl_offset);
2149 }
2150
2151 set->id = filesets_list[i];
2152 set->num_files = num_files;
2153 set->files = files;
2154 }
2155
2156 function->fdl_data.num_sets = num_sets;
2157 function->fdl_data.sets = sets;
2158
2159 return 0;
2160 }
2161
find_sdca_hid(struct device * dev,struct fwnode_handle * function_node,struct sdca_function_data * function)2162 static int find_sdca_hid(struct device *dev, struct fwnode_handle *function_node,
2163 struct sdca_function_data *function)
2164 {
2165 int num_desc;
2166
2167 num_desc = fwnode_property_count_u8(function_node, "mipi-sdca-hid-descriptor");
2168 if (!num_desc) {
2169 return 0;
2170 } else if (num_desc < 0) {
2171 dev_err(dev, "%pfwP: failed to read hid descriptor: %d\n",
2172 function_node, num_desc);
2173 return num_desc;
2174 } else if (num_desc > sizeof(function->hid.desc)) {
2175 dev_err(dev, "%pfwP: hid descriptor too large: %d\n",
2176 function_node, num_desc);
2177 return -EINVAL;
2178 }
2179
2180 fwnode_property_read_u8_array(function_node, "mipi-sdca-hid-descriptor",
2181 (u8 *)&function->hid.desc, num_desc);
2182
2183 if (!function->hid.desc.bNumDescriptors)
2184 return 0;
2185
2186 num_desc = fwnode_property_count_u8(function_node, "mipi-sdca-report-descriptor");
2187 if (num_desc <= 0) {
2188 dev_err(dev, "%pfwP: failed to read report descriptor: %d\n",
2189 function_node, num_desc);
2190
2191 if (!num_desc)
2192 return -EINVAL;
2193
2194 return num_desc;
2195 }
2196
2197 function->hid.report_desc = devm_kzalloc(dev, num_desc, GFP_KERNEL);
2198 if (!function->hid.report_desc)
2199 return -ENOMEM;
2200
2201 fwnode_property_read_u8_array(function_node, "mipi-sdca-report-descriptor",
2202 function->hid.report_desc, num_desc);
2203
2204 return 0;
2205 }
2206
2207 /**
2208 * sdca_parse_function - parse ACPI DisCo for a Function
2209 * @dev: Pointer to device against which function data will be allocated.
2210 * @function: Pointer to the Function information, to be populated.
2211 *
2212 * Return: Returns 0 for success.
2213 */
sdca_parse_function(struct device * dev,struct sdca_function_data * function)2214 int sdca_parse_function(struct device *dev, struct sdca_function_data *function)
2215 {
2216 struct fwnode_handle *node = function->desc->node;
2217 u32 tmp;
2218 int ret;
2219
2220 ret = fwnode_property_read_u32(node, "mipi-sdca-function-busy-max-delay", &tmp);
2221 if (!ret)
2222 function->busy_max_delay = tmp;
2223
2224 ret = fwnode_property_read_u32(node, "mipi-sdca-function-reset-max-delay", &tmp);
2225 if (ret || tmp == 0) {
2226 dev_dbg(dev, "reset delay missing, defaulting to 100mS\n");
2227 function->reset_max_delay = 100000;
2228 } else {
2229 function->reset_max_delay = tmp;
2230 }
2231
2232 dev_dbg(dev, "%pfwP: name %s busy delay %dus reset delay %dus\n",
2233 node, function->desc->name, function->busy_max_delay,
2234 function->reset_max_delay);
2235
2236 ret = find_sdca_init_table(dev, node, function);
2237 if (ret)
2238 return ret;
2239
2240 ret = find_sdca_entities(dev, node, function);
2241 if (ret)
2242 return ret;
2243
2244 ret = find_sdca_connections(dev, node, function);
2245 if (ret)
2246 return ret;
2247
2248 ret = find_sdca_clusters(dev, node, function);
2249 if (ret < 0)
2250 return ret;
2251
2252 ret = find_sdca_filesets(dev, node, function);
2253 if (ret)
2254 return ret;
2255
2256 switch (function->desc->type) {
2257 case SDCA_FUNCTION_TYPE_HID:
2258 ret = find_sdca_hid(dev, node, function);
2259 if (ret)
2260 return ret;
2261 break;
2262 default:
2263 break;
2264 }
2265
2266 return 0;
2267 }
2268 EXPORT_SYMBOL_NS(sdca_parse_function, "SND_SOC_SDCA");
2269
sdca_find_terminal_name(enum sdca_terminal_type type)2270 const char *sdca_find_terminal_name(enum sdca_terminal_type type)
2271 {
2272 switch (type) {
2273 case SDCA_TERM_TYPE_LINEIN_STEREO:
2274 return SDCA_TERM_TYPE_LINEIN_STEREO_NAME;
2275 case SDCA_TERM_TYPE_LINEIN_FRONT_LR:
2276 return SDCA_TERM_TYPE_LINEIN_FRONT_LR_NAME;
2277 case SDCA_TERM_TYPE_LINEIN_CENTER_LFE:
2278 return SDCA_TERM_TYPE_LINEIN_CENTER_LFE_NAME;
2279 case SDCA_TERM_TYPE_LINEIN_SURROUND_LR:
2280 return SDCA_TERM_TYPE_LINEIN_SURROUND_LR_NAME;
2281 case SDCA_TERM_TYPE_LINEIN_REAR_LR:
2282 return SDCA_TERM_TYPE_LINEIN_REAR_LR_NAME;
2283 case SDCA_TERM_TYPE_LINEOUT_STEREO:
2284 return SDCA_TERM_TYPE_LINEOUT_STEREO_NAME;
2285 case SDCA_TERM_TYPE_LINEOUT_FRONT_LR:
2286 return SDCA_TERM_TYPE_LINEOUT_FRONT_LR_NAME;
2287 case SDCA_TERM_TYPE_LINEOUT_CENTER_LFE:
2288 return SDCA_TERM_TYPE_LINEOUT_CENTER_LFE_NAME;
2289 case SDCA_TERM_TYPE_LINEOUT_SURROUND_LR:
2290 return SDCA_TERM_TYPE_LINEOUT_SURROUND_LR_NAME;
2291 case SDCA_TERM_TYPE_LINEOUT_REAR_LR:
2292 return SDCA_TERM_TYPE_LINEOUT_REAR_LR_NAME;
2293 case SDCA_TERM_TYPE_MIC_JACK:
2294 return SDCA_TERM_TYPE_MIC_JACK_NAME;
2295 case SDCA_TERM_TYPE_STEREO_JACK:
2296 return SDCA_TERM_TYPE_STEREO_JACK_NAME;
2297 case SDCA_TERM_TYPE_FRONT_LR_JACK:
2298 return SDCA_TERM_TYPE_FRONT_LR_JACK_NAME;
2299 case SDCA_TERM_TYPE_CENTER_LFE_JACK:
2300 return SDCA_TERM_TYPE_CENTER_LFE_JACK_NAME;
2301 case SDCA_TERM_TYPE_SURROUND_LR_JACK:
2302 return SDCA_TERM_TYPE_SURROUND_LR_JACK_NAME;
2303 case SDCA_TERM_TYPE_REAR_LR_JACK:
2304 return SDCA_TERM_TYPE_REAR_LR_JACK_NAME;
2305 case SDCA_TERM_TYPE_HEADPHONE_JACK:
2306 return SDCA_TERM_TYPE_HEADPHONE_JACK_NAME;
2307 case SDCA_TERM_TYPE_HEADSET_JACK:
2308 return SDCA_TERM_TYPE_HEADSET_JACK_NAME;
2309 default:
2310 return NULL;
2311 }
2312 }
2313 EXPORT_SYMBOL_NS(sdca_find_terminal_name, "SND_SOC_SDCA");
2314
sdca_selector_find_control(struct device * dev,struct sdca_entity * entity,const int sel)2315 struct sdca_control *sdca_selector_find_control(struct device *dev,
2316 struct sdca_entity *entity,
2317 const int sel)
2318 {
2319 int i;
2320
2321 for (i = 0; i < entity->num_controls; i++) {
2322 struct sdca_control *control = &entity->controls[i];
2323
2324 if (control->sel == sel)
2325 return control;
2326 }
2327
2328 dev_err(dev, "%s: control %#x: missing\n", entity->label, sel);
2329 return NULL;
2330 }
2331 EXPORT_SYMBOL_NS(sdca_selector_find_control, "SND_SOC_SDCA");
2332
sdca_control_find_range(struct device * dev,struct sdca_entity * entity,struct sdca_control * control,int cols,int rows)2333 struct sdca_control_range *sdca_control_find_range(struct device *dev,
2334 struct sdca_entity *entity,
2335 struct sdca_control *control,
2336 int cols, int rows)
2337 {
2338 struct sdca_control_range *range = &control->range;
2339
2340 if ((cols && range->cols != cols) || (rows && range->rows != rows) ||
2341 !range->data) {
2342 dev_err(dev, "%s: control %#x: ranges invalid (%d,%d)\n",
2343 entity->label, control->sel, range->cols, range->rows);
2344 return NULL;
2345 }
2346
2347 return range;
2348 }
2349 EXPORT_SYMBOL_NS(sdca_control_find_range, "SND_SOC_SDCA");
2350
sdca_selector_find_range(struct device * dev,struct sdca_entity * entity,int sel,int cols,int rows)2351 struct sdca_control_range *sdca_selector_find_range(struct device *dev,
2352 struct sdca_entity *entity,
2353 int sel, int cols, int rows)
2354 {
2355 struct sdca_control *control;
2356
2357 control = sdca_selector_find_control(dev, entity, sel);
2358 if (!control)
2359 return NULL;
2360
2361 return sdca_control_find_range(dev, entity, control, cols, rows);
2362 }
2363 EXPORT_SYMBOL_NS(sdca_selector_find_range, "SND_SOC_SDCA");
2364
sdca_id_find_cluster(struct device * dev,struct sdca_function_data * function,const int id)2365 struct sdca_cluster *sdca_id_find_cluster(struct device *dev,
2366 struct sdca_function_data *function,
2367 const int id)
2368 {
2369 int i;
2370
2371 for (i = 0; i < function->num_clusters; i++) {
2372 struct sdca_cluster *cluster = &function->clusters[i];
2373
2374 if (cluster->id == id)
2375 return cluster;
2376 }
2377
2378 dev_err(dev, "%s: cluster %#x: missing\n", function->desc->name, id);
2379 return NULL;
2380 }
2381 EXPORT_SYMBOL_NS(sdca_id_find_cluster, "SND_SOC_SDCA");
2382
2383 MODULE_LICENSE("Dual BSD/GPL");
2384 MODULE_DESCRIPTION("SDCA library");
2385