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