1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
2 //
3 // This file is provided under a dual BSD/GPLv2 license. When using or
4 // redistributing this file, you may do so under either license.
5 //
6 // Copyright(c) 2018 Intel Corporation. All rights reserved.
7 //
8 // Authors: Liam Girdwood <liam.r.girdwood@linux.intel.com>
9 // Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
10 // Rander Wang <rander.wang@intel.com>
11 // Keyon Jie <yang.jie@linux.intel.com>
12 //
13
14 /*
15 * Hardware interface for generic Intel audio DSP HDA IP
16 */
17
18 #include <sound/hdaudio_ext.h>
19 #include <sound/hda_register.h>
20
21 #include <linux/acpi.h>
22 #include <linux/module.h>
23 #include <linux/soundwire/sdw.h>
24 #include <linux/soundwire/sdw_intel.h>
25 #include <sound/intel-nhlt.h>
26 #include <sound/sof.h>
27 #include <sound/sof/xtensa.h>
28 #include "../sof-audio.h"
29 #include "../ops.h"
30 #include "hda.h"
31
32 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
33 #include <sound/soc-acpi-intel-match.h>
34 #endif
35
36 /* platform specific devices */
37 #include "shim.h"
38
39 #define EXCEPT_MAX_HDR_SIZE 0x400
40 #define HDA_EXT_ROM_STATUS_SIZE 8
41
42 #if IS_ENABLED(CONFIG_SND_SOC_SOF_INTEL_SOUNDWIRE)
43
44 /*
45 * The default for SoundWire clock stop quirks is to power gate the IP
46 * and do a Bus Reset, this will need to be modified when the DSP
47 * needs to remain in D0i3 so that the Master does not lose context
48 * and enumeration is not required on clock restart
49 */
50 static int sdw_clock_stop_quirks = SDW_INTEL_CLK_STOP_BUS_RESET;
51 module_param(sdw_clock_stop_quirks, int, 0444);
52 MODULE_PARM_DESC(sdw_clock_stop_quirks, "SOF SoundWire clock stop quirks");
53
sdw_params_stream(struct device * dev,struct sdw_intel_stream_params_data * params_data)54 static int sdw_params_stream(struct device *dev,
55 struct sdw_intel_stream_params_data *params_data)
56 {
57 struct snd_sof_dev *sdev = dev_get_drvdata(dev);
58 struct snd_soc_dai *d = params_data->dai;
59 struct sof_ipc_dai_config config;
60 struct sof_ipc_reply reply;
61 int link_id = params_data->link_id;
62 int alh_stream_id = params_data->alh_stream_id;
63 int ret;
64 u32 size = sizeof(config);
65
66 memset(&config, 0, size);
67 config.hdr.size = size;
68 config.hdr.cmd = SOF_IPC_GLB_DAI_MSG | SOF_IPC_DAI_CONFIG;
69 config.type = SOF_DAI_INTEL_ALH;
70 config.dai_index = (link_id << 8) | (d->id);
71 config.alh.stream_id = alh_stream_id;
72
73 /* send message to DSP */
74 ret = sof_ipc_tx_message(sdev->ipc,
75 config.hdr.cmd, &config, size, &reply,
76 sizeof(reply));
77 if (ret < 0) {
78 dev_err(sdev->dev,
79 "error: failed to set DAI hw_params for link %d dai->id %d ALH %d\n",
80 link_id, d->id, alh_stream_id);
81 }
82
83 return ret;
84 }
85
sdw_free_stream(struct device * dev,struct sdw_intel_stream_free_data * free_data)86 static int sdw_free_stream(struct device *dev,
87 struct sdw_intel_stream_free_data *free_data)
88 {
89 struct snd_sof_dev *sdev = dev_get_drvdata(dev);
90 struct snd_soc_dai *d = free_data->dai;
91 struct sof_ipc_dai_config config;
92 struct sof_ipc_reply reply;
93 int link_id = free_data->link_id;
94 int ret;
95 u32 size = sizeof(config);
96
97 memset(&config, 0, size);
98 config.hdr.size = size;
99 config.hdr.cmd = SOF_IPC_GLB_DAI_MSG | SOF_IPC_DAI_CONFIG;
100 config.type = SOF_DAI_INTEL_ALH;
101 config.dai_index = (link_id << 8) | d->id;
102 config.alh.stream_id = 0xFFFF; /* invalid value on purpose */
103
104 /* send message to DSP */
105 ret = sof_ipc_tx_message(sdev->ipc,
106 config.hdr.cmd, &config, size, &reply,
107 sizeof(reply));
108 if (ret < 0) {
109 dev_err(sdev->dev,
110 "error: failed to free stream for link %d dai->id %d\n",
111 link_id, d->id);
112 }
113
114 return ret;
115 }
116
117 static const struct sdw_intel_ops sdw_callback = {
118 .params_stream = sdw_params_stream,
119 .free_stream = sdw_free_stream,
120 };
121
hda_sdw_int_enable(struct snd_sof_dev * sdev,bool enable)122 void hda_sdw_int_enable(struct snd_sof_dev *sdev, bool enable)
123 {
124 sdw_intel_enable_irq(sdev->bar[HDA_DSP_BAR], enable);
125 }
126
hda_sdw_acpi_scan(struct snd_sof_dev * sdev)127 static int hda_sdw_acpi_scan(struct snd_sof_dev *sdev)
128 {
129 struct sof_intel_hda_dev *hdev;
130 acpi_handle handle;
131 int ret;
132
133 handle = ACPI_HANDLE(sdev->dev);
134
135 /* save ACPI info for the probe step */
136 hdev = sdev->pdata->hw_pdata;
137
138 ret = sdw_intel_acpi_scan(handle, &hdev->info);
139 if (ret < 0)
140 return -EINVAL;
141
142 return 0;
143 }
144
hda_sdw_probe(struct snd_sof_dev * sdev)145 static int hda_sdw_probe(struct snd_sof_dev *sdev)
146 {
147 struct sof_intel_hda_dev *hdev;
148 struct sdw_intel_res res;
149 void *sdw;
150
151 hdev = sdev->pdata->hw_pdata;
152
153 memset(&res, 0, sizeof(res));
154
155 res.mmio_base = sdev->bar[HDA_DSP_BAR];
156 res.irq = sdev->ipc_irq;
157 res.handle = hdev->info.handle;
158 res.parent = sdev->dev;
159 res.ops = &sdw_callback;
160 res.dev = sdev->dev;
161 res.clock_stop_quirks = sdw_clock_stop_quirks;
162
163 /*
164 * ops and arg fields are not populated for now,
165 * they will be needed when the DAI callbacks are
166 * provided
167 */
168
169 /* we could filter links here if needed, e.g for quirks */
170 res.count = hdev->info.count;
171 res.link_mask = hdev->info.link_mask;
172
173 sdw = sdw_intel_probe(&res);
174 if (!sdw) {
175 dev_err(sdev->dev, "error: SoundWire probe failed\n");
176 return -EINVAL;
177 }
178
179 /* save context */
180 hdev->sdw = sdw;
181
182 return 0;
183 }
184
hda_sdw_startup(struct snd_sof_dev * sdev)185 int hda_sdw_startup(struct snd_sof_dev *sdev)
186 {
187 struct sof_intel_hda_dev *hdev;
188
189 hdev = sdev->pdata->hw_pdata;
190
191 if (!hdev->sdw)
192 return 0;
193
194 return sdw_intel_startup(hdev->sdw);
195 }
196
hda_sdw_exit(struct snd_sof_dev * sdev)197 static int hda_sdw_exit(struct snd_sof_dev *sdev)
198 {
199 struct sof_intel_hda_dev *hdev;
200
201 hdev = sdev->pdata->hw_pdata;
202
203 hda_sdw_int_enable(sdev, false);
204
205 if (hdev->sdw)
206 sdw_intel_exit(hdev->sdw);
207 hdev->sdw = NULL;
208
209 return 0;
210 }
211
hda_dsp_check_sdw_irq(struct snd_sof_dev * sdev)212 static bool hda_dsp_check_sdw_irq(struct snd_sof_dev *sdev)
213 {
214 struct sof_intel_hda_dev *hdev;
215 bool ret = false;
216 u32 irq_status;
217
218 hdev = sdev->pdata->hw_pdata;
219
220 if (!hdev->sdw)
221 return ret;
222
223 /* store status */
224 irq_status = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_ADSPIS2);
225
226 /* invalid message ? */
227 if (irq_status == 0xffffffff)
228 goto out;
229
230 /* SDW message ? */
231 if (irq_status & HDA_DSP_REG_ADSPIS2_SNDW)
232 ret = true;
233
234 out:
235 return ret;
236 }
237
hda_dsp_sdw_thread(int irq,void * context)238 static irqreturn_t hda_dsp_sdw_thread(int irq, void *context)
239 {
240 return sdw_intel_thread(irq, context);
241 }
242
hda_sdw_check_wakeen_irq(struct snd_sof_dev * sdev)243 static bool hda_sdw_check_wakeen_irq(struct snd_sof_dev *sdev)
244 {
245 struct sof_intel_hda_dev *hdev;
246
247 hdev = sdev->pdata->hw_pdata;
248 if (hdev->sdw &&
249 snd_sof_dsp_read(sdev, HDA_DSP_BAR,
250 HDA_DSP_REG_SNDW_WAKE_STS))
251 return true;
252
253 return false;
254 }
255
hda_sdw_process_wakeen(struct snd_sof_dev * sdev)256 void hda_sdw_process_wakeen(struct snd_sof_dev *sdev)
257 {
258 struct sof_intel_hda_dev *hdev;
259
260 hdev = sdev->pdata->hw_pdata;
261 if (!hdev->sdw)
262 return;
263
264 sdw_intel_process_wakeen_event(hdev->sdw);
265 }
266
267 #endif
268
269 /*
270 * Debug
271 */
272
273 struct hda_dsp_msg_code {
274 u32 code;
275 const char *msg;
276 };
277
278 static bool hda_use_msi = IS_ENABLED(CONFIG_PCI);
279 #if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG)
280 module_param_named(use_msi, hda_use_msi, bool, 0444);
281 MODULE_PARM_DESC(use_msi, "SOF HDA use PCI MSI mode");
282 #endif
283
284 static char *hda_model;
285 module_param(hda_model, charp, 0444);
286 MODULE_PARM_DESC(hda_model, "Use the given HDA board model.");
287
288 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
289 static int hda_dmic_num = -1;
290 module_param_named(dmic_num, hda_dmic_num, int, 0444);
291 MODULE_PARM_DESC(dmic_num, "SOF HDA DMIC number");
292
293 static bool hda_codec_use_common_hdmi = IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI);
294 module_param_named(use_common_hdmi, hda_codec_use_common_hdmi, bool, 0444);
295 MODULE_PARM_DESC(use_common_hdmi, "SOF HDA use common HDMI codec driver");
296 #endif
297
298 static const struct hda_dsp_msg_code hda_dsp_rom_msg[] = {
299 {HDA_DSP_ROM_FW_MANIFEST_LOADED, "status: manifest loaded"},
300 {HDA_DSP_ROM_FW_FW_LOADED, "status: fw loaded"},
301 {HDA_DSP_ROM_FW_ENTERED, "status: fw entered"},
302 {HDA_DSP_ROM_CSE_ERROR, "error: cse error"},
303 {HDA_DSP_ROM_CSE_WRONG_RESPONSE, "error: cse wrong response"},
304 {HDA_DSP_ROM_IMR_TO_SMALL, "error: IMR too small"},
305 {HDA_DSP_ROM_BASE_FW_NOT_FOUND, "error: base fw not found"},
306 {HDA_DSP_ROM_CSE_VALIDATION_FAILED, "error: signature verification failed"},
307 {HDA_DSP_ROM_IPC_FATAL_ERROR, "error: ipc fatal error"},
308 {HDA_DSP_ROM_L2_CACHE_ERROR, "error: L2 cache error"},
309 {HDA_DSP_ROM_LOAD_OFFSET_TO_SMALL, "error: load offset too small"},
310 {HDA_DSP_ROM_API_PTR_INVALID, "error: API ptr invalid"},
311 {HDA_DSP_ROM_BASEFW_INCOMPAT, "error: base fw incompatible"},
312 {HDA_DSP_ROM_UNHANDLED_INTERRUPT, "error: unhandled interrupt"},
313 {HDA_DSP_ROM_MEMORY_HOLE_ECC, "error: ECC memory hole"},
314 {HDA_DSP_ROM_KERNEL_EXCEPTION, "error: kernel exception"},
315 {HDA_DSP_ROM_USER_EXCEPTION, "error: user exception"},
316 {HDA_DSP_ROM_UNEXPECTED_RESET, "error: unexpected reset"},
317 {HDA_DSP_ROM_NULL_FW_ENTRY, "error: null FW entry point"},
318 };
319
hda_dsp_get_status_skl(struct snd_sof_dev * sdev)320 static void hda_dsp_get_status_skl(struct snd_sof_dev *sdev)
321 {
322 u32 status;
323 int i;
324
325 status = snd_sof_dsp_read(sdev, HDA_DSP_BAR,
326 HDA_ADSP_FW_STATUS_SKL);
327
328 for (i = 0; i < ARRAY_SIZE(hda_dsp_rom_msg); i++) {
329 if (status == hda_dsp_rom_msg[i].code) {
330 dev_err(sdev->dev, "%s - code %8.8x\n",
331 hda_dsp_rom_msg[i].msg, status);
332 return;
333 }
334 }
335
336 /* not for us, must be generic sof message */
337 dev_dbg(sdev->dev, "unknown ROM status value %8.8x\n", status);
338 }
339
hda_dsp_get_status(struct snd_sof_dev * sdev)340 static void hda_dsp_get_status(struct snd_sof_dev *sdev)
341 {
342 u32 status;
343 int i;
344
345 status = snd_sof_dsp_read(sdev, HDA_DSP_BAR,
346 HDA_DSP_SRAM_REG_ROM_STATUS);
347
348 for (i = 0; i < ARRAY_SIZE(hda_dsp_rom_msg); i++) {
349 if (status == hda_dsp_rom_msg[i].code) {
350 dev_err(sdev->dev, "%s - code %8.8x\n",
351 hda_dsp_rom_msg[i].msg, status);
352 return;
353 }
354 }
355
356 /* not for us, must be generic sof message */
357 dev_dbg(sdev->dev, "unknown ROM status value %8.8x\n", status);
358 }
359
hda_dsp_get_registers(struct snd_sof_dev * sdev,struct sof_ipc_dsp_oops_xtensa * xoops,struct sof_ipc_panic_info * panic_info,u32 * stack,size_t stack_words)360 static void hda_dsp_get_registers(struct snd_sof_dev *sdev,
361 struct sof_ipc_dsp_oops_xtensa *xoops,
362 struct sof_ipc_panic_info *panic_info,
363 u32 *stack, size_t stack_words)
364 {
365 u32 offset = sdev->dsp_oops_offset;
366
367 /* first read registers */
368 sof_mailbox_read(sdev, offset, xoops, sizeof(*xoops));
369
370 /* note: variable AR register array is not read */
371
372 /* then get panic info */
373 if (xoops->arch_hdr.totalsize > EXCEPT_MAX_HDR_SIZE) {
374 dev_err(sdev->dev, "invalid header size 0x%x. FW oops is bogus\n",
375 xoops->arch_hdr.totalsize);
376 return;
377 }
378 offset += xoops->arch_hdr.totalsize;
379 sof_block_read(sdev, sdev->mmio_bar, offset,
380 panic_info, sizeof(*panic_info));
381
382 /* then get the stack */
383 offset += sizeof(*panic_info);
384 sof_block_read(sdev, sdev->mmio_bar, offset, stack,
385 stack_words * sizeof(u32));
386 }
387
hda_dsp_dump_skl(struct snd_sof_dev * sdev,u32 flags)388 void hda_dsp_dump_skl(struct snd_sof_dev *sdev, u32 flags)
389 {
390 struct sof_ipc_dsp_oops_xtensa xoops;
391 struct sof_ipc_panic_info panic_info;
392 u32 stack[HDA_DSP_STACK_DUMP_SIZE];
393 u32 status, panic;
394
395 /* try APL specific status message types first */
396 hda_dsp_get_status_skl(sdev);
397
398 /* now try generic SOF status messages */
399 status = snd_sof_dsp_read(sdev, HDA_DSP_BAR,
400 HDA_ADSP_ERROR_CODE_SKL);
401
402 /*TODO: Check: there is no define in spec, but it is used in the code*/
403 panic = snd_sof_dsp_read(sdev, HDA_DSP_BAR,
404 HDA_ADSP_ERROR_CODE_SKL + 0x4);
405
406 if (sdev->fw_state == SOF_FW_BOOT_COMPLETE) {
407 hda_dsp_get_registers(sdev, &xoops, &panic_info, stack,
408 HDA_DSP_STACK_DUMP_SIZE);
409 snd_sof_get_status(sdev, status, panic, &xoops, &panic_info,
410 stack, HDA_DSP_STACK_DUMP_SIZE);
411 } else {
412 dev_err(sdev->dev, "error: status = 0x%8.8x panic = 0x%8.8x\n",
413 status, panic);
414 hda_dsp_get_status_skl(sdev);
415 }
416 }
417
418 /* dump the first 8 dwords representing the extended ROM status */
hda_dsp_dump_ext_rom_status(struct snd_sof_dev * sdev)419 static void hda_dsp_dump_ext_rom_status(struct snd_sof_dev *sdev)
420 {
421 struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
422 char msg[128];
423 int len = 0;
424 u32 value;
425 int i;
426
427 for (i = 0; i < HDA_EXT_ROM_STATUS_SIZE; i++) {
428 value = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_SRAM_REG_ROM_STATUS + i * 0x4);
429 len += snprintf(msg + len, sizeof(msg) - len, " 0x%x", value);
430 }
431
432 sof_dev_dbg_or_err(sdev->dev, hda->boot_iteration == HDA_FW_BOOT_ATTEMPTS,
433 "extended rom status: %s", msg);
434
435 }
436
hda_dsp_dump(struct snd_sof_dev * sdev,u32 flags)437 void hda_dsp_dump(struct snd_sof_dev *sdev, u32 flags)
438 {
439 struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
440 struct sof_ipc_dsp_oops_xtensa xoops;
441 struct sof_ipc_panic_info panic_info;
442 u32 stack[HDA_DSP_STACK_DUMP_SIZE];
443 u32 status, panic;
444
445 /* try APL specific status message types first */
446 hda_dsp_get_status(sdev);
447
448 /* now try generic SOF status messages */
449 status = snd_sof_dsp_read(sdev, HDA_DSP_BAR,
450 HDA_DSP_SRAM_REG_FW_STATUS);
451 panic = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_SRAM_REG_FW_TRACEP);
452
453 if (sdev->fw_state == SOF_FW_BOOT_COMPLETE) {
454 hda_dsp_get_registers(sdev, &xoops, &panic_info, stack,
455 HDA_DSP_STACK_DUMP_SIZE);
456 snd_sof_get_status(sdev, status, panic, &xoops, &panic_info,
457 stack, HDA_DSP_STACK_DUMP_SIZE);
458 } else {
459 sof_dev_dbg_or_err(sdev->dev, hda->boot_iteration == HDA_FW_BOOT_ATTEMPTS,
460 "status = 0x%8.8x panic = 0x%8.8x\n",
461 status, panic);
462
463 hda_dsp_dump_ext_rom_status(sdev);
464 hda_dsp_get_status(sdev);
465 }
466 }
467
hda_ipc_irq_dump(struct snd_sof_dev * sdev)468 void hda_ipc_irq_dump(struct snd_sof_dev *sdev)
469 {
470 struct hdac_bus *bus = sof_to_bus(sdev);
471 u32 adspis;
472 u32 intsts;
473 u32 intctl;
474 u32 ppsts;
475 u8 rirbsts;
476
477 /* read key IRQ stats and config registers */
478 adspis = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_ADSPIS);
479 intsts = snd_sof_dsp_read(sdev, HDA_DSP_HDA_BAR, SOF_HDA_INTSTS);
480 intctl = snd_sof_dsp_read(sdev, HDA_DSP_HDA_BAR, SOF_HDA_INTCTL);
481 ppsts = snd_sof_dsp_read(sdev, HDA_DSP_PP_BAR, SOF_HDA_REG_PP_PPSTS);
482 rirbsts = snd_hdac_chip_readb(bus, RIRBSTS);
483
484 dev_err(sdev->dev,
485 "error: hda irq intsts 0x%8.8x intlctl 0x%8.8x rirb %2.2x\n",
486 intsts, intctl, rirbsts);
487 dev_err(sdev->dev,
488 "error: dsp irq ppsts 0x%8.8x adspis 0x%8.8x\n",
489 ppsts, adspis);
490 }
491
hda_ipc_dump(struct snd_sof_dev * sdev)492 void hda_ipc_dump(struct snd_sof_dev *sdev)
493 {
494 u32 hipcie;
495 u32 hipct;
496 u32 hipcctl;
497
498 hda_ipc_irq_dump(sdev);
499
500 /* read IPC status */
501 hipcie = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCIE);
502 hipct = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCT);
503 hipcctl = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCCTL);
504
505 /* dump the IPC regs */
506 /* TODO: parse the raw msg */
507 dev_err(sdev->dev,
508 "error: host status 0x%8.8x dsp status 0x%8.8x mask 0x%8.8x\n",
509 hipcie, hipct, hipcctl);
510 }
511
hda_init(struct snd_sof_dev * sdev)512 static int hda_init(struct snd_sof_dev *sdev)
513 {
514 struct hda_bus *hbus;
515 struct hdac_bus *bus;
516 struct pci_dev *pci = to_pci_dev(sdev->dev);
517 int ret;
518
519 hbus = sof_to_hbus(sdev);
520 bus = sof_to_bus(sdev);
521
522 /* HDA bus init */
523 sof_hda_bus_init(bus, &pci->dev);
524
525 bus->use_posbuf = 1;
526 bus->bdl_pos_adj = 0;
527 bus->sync_write = 1;
528
529 mutex_init(&hbus->prepare_mutex);
530 hbus->pci = pci;
531 hbus->mixer_assigned = -1;
532 hbus->modelname = hda_model;
533
534 /* initialise hdac bus */
535 bus->addr = pci_resource_start(pci, 0);
536 #if IS_ENABLED(CONFIG_PCI)
537 bus->remap_addr = pci_ioremap_bar(pci, 0);
538 #endif
539 if (!bus->remap_addr) {
540 dev_err(bus->dev, "error: ioremap error\n");
541 return -ENXIO;
542 }
543
544 /* HDA base */
545 sdev->bar[HDA_DSP_HDA_BAR] = bus->remap_addr;
546
547 /* init i915 and HDMI codecs */
548 ret = hda_codec_i915_init(sdev);
549 if (ret < 0)
550 dev_warn(sdev->dev, "init of i915 and HDMI codec failed\n");
551
552 /* get controller capabilities */
553 ret = hda_dsp_ctrl_get_caps(sdev);
554 if (ret < 0)
555 dev_err(sdev->dev, "error: get caps error\n");
556
557 return ret;
558 }
559
560 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
561
check_nhlt_dmic(struct snd_sof_dev * sdev)562 static int check_nhlt_dmic(struct snd_sof_dev *sdev)
563 {
564 struct nhlt_acpi_table *nhlt;
565 int dmic_num;
566
567 nhlt = intel_nhlt_init(sdev->dev);
568 if (nhlt) {
569 dmic_num = intel_nhlt_get_dmic_geo(sdev->dev, nhlt);
570 intel_nhlt_free(nhlt);
571 if (dmic_num >= 1 && dmic_num <= 4)
572 return dmic_num;
573 }
574
575 return 0;
576 }
577
fixup_tplg_name(struct snd_sof_dev * sdev,const char * sof_tplg_filename,const char * idisp_str,const char * dmic_str)578 static const char *fixup_tplg_name(struct snd_sof_dev *sdev,
579 const char *sof_tplg_filename,
580 const char *idisp_str,
581 const char *dmic_str)
582 {
583 const char *tplg_filename = NULL;
584 char *filename;
585 char *split_ext;
586
587 filename = devm_kstrdup(sdev->dev, sof_tplg_filename, GFP_KERNEL);
588 if (!filename)
589 return NULL;
590
591 /* this assumes a .tplg extension */
592 split_ext = strsep(&filename, ".");
593 if (split_ext) {
594 tplg_filename = devm_kasprintf(sdev->dev, GFP_KERNEL,
595 "%s%s%s.tplg",
596 split_ext, idisp_str, dmic_str);
597 if (!tplg_filename)
598 return NULL;
599 }
600 return tplg_filename;
601 }
602
603 #endif
604
hda_init_caps(struct snd_sof_dev * sdev)605 static int hda_init_caps(struct snd_sof_dev *sdev)
606 {
607 struct hdac_bus *bus = sof_to_bus(sdev);
608 struct snd_sof_pdata *pdata = sdev->pdata;
609 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
610 struct hdac_ext_link *hlink;
611 #endif
612 struct sof_intel_hda_dev *hdev = pdata->hw_pdata;
613 u32 link_mask;
614 int ret = 0;
615
616 device_disable_async_suspend(bus->dev);
617
618 /* check if dsp is there */
619 if (bus->ppcap)
620 dev_dbg(sdev->dev, "PP capability, will probe DSP later.\n");
621
622 /* Init HDA controller after i915 init */
623 ret = hda_dsp_ctrl_init_chip(sdev, true);
624 if (ret < 0) {
625 dev_err(bus->dev, "error: init chip failed with ret: %d\n",
626 ret);
627 return ret;
628 }
629
630 /* scan SoundWire capabilities exposed by DSDT */
631 ret = hda_sdw_acpi_scan(sdev);
632 if (ret < 0) {
633 dev_dbg(sdev->dev, "skipping SoundWire, not detected with ACPI scan\n");
634 goto skip_soundwire;
635 }
636
637 link_mask = hdev->info.link_mask;
638 if (!link_mask) {
639 dev_dbg(sdev->dev, "skipping SoundWire, no links enabled\n");
640 goto skip_soundwire;
641 }
642
643 /*
644 * probe/allocate SoundWire resources.
645 * The hardware configuration takes place in hda_sdw_startup
646 * after power rails are enabled.
647 * It's entirely possible to have a mix of I2S/DMIC/SoundWire
648 * devices, so we allocate the resources in all cases.
649 */
650 ret = hda_sdw_probe(sdev);
651 if (ret < 0) {
652 dev_err(sdev->dev, "error: SoundWire probe error\n");
653 return ret;
654 }
655
656 skip_soundwire:
657
658 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
659 if (bus->mlcap)
660 snd_hdac_ext_bus_get_ml_capabilities(bus);
661
662 /* create codec instances */
663 hda_codec_probe_bus(sdev, hda_codec_use_common_hdmi);
664
665 if (!HDA_IDISP_CODEC(bus->codec_mask))
666 hda_codec_i915_display_power(sdev, false);
667
668 /*
669 * we are done probing so decrement link counts
670 */
671 list_for_each_entry(hlink, &bus->hlink_list, list)
672 snd_hdac_ext_bus_link_put(bus, hlink);
673 #endif
674 return 0;
675 }
676
677 static const struct sof_intel_dsp_desc
get_chip_info(struct snd_sof_pdata * pdata)678 *get_chip_info(struct snd_sof_pdata *pdata)
679 {
680 const struct sof_dev_desc *desc = pdata->desc;
681 const struct sof_intel_dsp_desc *chip_info;
682
683 chip_info = desc->chip_info;
684
685 return chip_info;
686 }
687
hda_dsp_interrupt_handler(int irq,void * context)688 static irqreturn_t hda_dsp_interrupt_handler(int irq, void *context)
689 {
690 struct snd_sof_dev *sdev = context;
691
692 /*
693 * Get global interrupt status. It includes all hardware interrupt
694 * sources in the Intel HD Audio controller.
695 */
696 if (snd_sof_dsp_read(sdev, HDA_DSP_HDA_BAR, SOF_HDA_INTSTS) &
697 SOF_HDA_INTSTS_GIS) {
698
699 /* disable GIE interrupt */
700 snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR,
701 SOF_HDA_INTCTL,
702 SOF_HDA_INT_GLOBAL_EN,
703 0);
704
705 return IRQ_WAKE_THREAD;
706 }
707
708 return IRQ_NONE;
709 }
710
hda_dsp_interrupt_thread(int irq,void * context)711 static irqreturn_t hda_dsp_interrupt_thread(int irq, void *context)
712 {
713 struct snd_sof_dev *sdev = context;
714 struct sof_intel_hda_dev *hdev = sdev->pdata->hw_pdata;
715
716 /* deal with streams and controller first */
717 if (hda_dsp_check_stream_irq(sdev))
718 hda_dsp_stream_threaded_handler(irq, sdev);
719
720 if (hda_dsp_check_ipc_irq(sdev))
721 sof_ops(sdev)->irq_thread(irq, sdev);
722
723 if (hda_dsp_check_sdw_irq(sdev))
724 hda_dsp_sdw_thread(irq, hdev->sdw);
725
726 if (hda_sdw_check_wakeen_irq(sdev))
727 hda_sdw_process_wakeen(sdev);
728
729 /* enable GIE interrupt */
730 snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR,
731 SOF_HDA_INTCTL,
732 SOF_HDA_INT_GLOBAL_EN,
733 SOF_HDA_INT_GLOBAL_EN);
734
735 return IRQ_HANDLED;
736 }
737
hda_dsp_probe(struct snd_sof_dev * sdev)738 int hda_dsp_probe(struct snd_sof_dev *sdev)
739 {
740 struct pci_dev *pci = to_pci_dev(sdev->dev);
741 struct sof_intel_hda_dev *hdev;
742 struct hdac_bus *bus;
743 const struct sof_intel_dsp_desc *chip;
744 int ret = 0;
745
746 /*
747 * detect DSP by checking class/subclass/prog-id information
748 * class=04 subclass 03 prog-if 00: no DSP, legacy driver is required
749 * class=04 subclass 01 prog-if 00: DSP is present
750 * (and may be required e.g. for DMIC or SSP support)
751 * class=04 subclass 03 prog-if 80: either of DSP or legacy mode works
752 */
753 if (pci->class == 0x040300) {
754 dev_err(sdev->dev, "error: the DSP is not enabled on this platform, aborting probe\n");
755 return -ENODEV;
756 } else if (pci->class != 0x040100 && pci->class != 0x040380) {
757 dev_err(sdev->dev, "error: unknown PCI class/subclass/prog-if 0x%06x found, aborting probe\n", pci->class);
758 return -ENODEV;
759 }
760 dev_info(sdev->dev, "DSP detected with PCI class/subclass/prog-if 0x%06x\n", pci->class);
761
762 chip = get_chip_info(sdev->pdata);
763 if (!chip) {
764 dev_err(sdev->dev, "error: no such device supported, chip id:%x\n",
765 pci->device);
766 ret = -EIO;
767 goto err;
768 }
769
770 hdev = devm_kzalloc(sdev->dev, sizeof(*hdev), GFP_KERNEL);
771 if (!hdev)
772 return -ENOMEM;
773 sdev->pdata->hw_pdata = hdev;
774 hdev->desc = chip;
775
776 hdev->dmic_dev = platform_device_register_data(sdev->dev, "dmic-codec",
777 PLATFORM_DEVID_NONE,
778 NULL, 0);
779 if (IS_ERR(hdev->dmic_dev)) {
780 dev_err(sdev->dev, "error: failed to create DMIC device\n");
781 return PTR_ERR(hdev->dmic_dev);
782 }
783
784 /*
785 * use position update IPC if either it is forced
786 * or we don't have other choice
787 */
788 #if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_FORCE_IPC_POSITION)
789 hdev->no_ipc_position = 0;
790 #else
791 hdev->no_ipc_position = sof_ops(sdev)->pcm_pointer ? 1 : 0;
792 #endif
793
794 /* set up HDA base */
795 bus = sof_to_bus(sdev);
796 ret = hda_init(sdev);
797 if (ret < 0)
798 goto hdac_bus_unmap;
799
800 /* DSP base */
801 #if IS_ENABLED(CONFIG_PCI)
802 sdev->bar[HDA_DSP_BAR] = pci_ioremap_bar(pci, HDA_DSP_BAR);
803 #endif
804 if (!sdev->bar[HDA_DSP_BAR]) {
805 dev_err(sdev->dev, "error: ioremap error\n");
806 ret = -ENXIO;
807 goto hdac_bus_unmap;
808 }
809
810 sdev->mmio_bar = HDA_DSP_BAR;
811 sdev->mailbox_bar = HDA_DSP_BAR;
812
813 /* allow 64bit DMA address if supported by H/W */
814 if (!dma_set_mask(&pci->dev, DMA_BIT_MASK(64))) {
815 dev_dbg(sdev->dev, "DMA mask is 64 bit\n");
816 dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(64));
817 } else {
818 dev_dbg(sdev->dev, "DMA mask is 32 bit\n");
819 dma_set_mask(&pci->dev, DMA_BIT_MASK(32));
820 dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(32));
821 }
822
823 /* init streams */
824 ret = hda_dsp_stream_init(sdev);
825 if (ret < 0) {
826 dev_err(sdev->dev, "error: failed to init streams\n");
827 /*
828 * not all errors are due to memory issues, but trying
829 * to free everything does not harm
830 */
831 goto free_streams;
832 }
833
834 /*
835 * register our IRQ
836 * let's try to enable msi firstly
837 * if it fails, use legacy interrupt mode
838 * TODO: support msi multiple vectors
839 */
840 if (hda_use_msi && pci_alloc_irq_vectors(pci, 1, 1, PCI_IRQ_MSI) > 0) {
841 dev_info(sdev->dev, "use msi interrupt mode\n");
842 sdev->ipc_irq = pci_irq_vector(pci, 0);
843 /* initialised to "false" by kzalloc() */
844 sdev->msi_enabled = true;
845 }
846
847 if (!sdev->msi_enabled) {
848 dev_info(sdev->dev, "use legacy interrupt mode\n");
849 /*
850 * in IO-APIC mode, hda->irq and ipc_irq are using the same
851 * irq number of pci->irq
852 */
853 sdev->ipc_irq = pci->irq;
854 }
855
856 dev_dbg(sdev->dev, "using IPC IRQ %d\n", sdev->ipc_irq);
857 ret = request_threaded_irq(sdev->ipc_irq, hda_dsp_interrupt_handler,
858 hda_dsp_interrupt_thread,
859 IRQF_SHARED, "AudioDSP", sdev);
860 if (ret < 0) {
861 dev_err(sdev->dev, "error: failed to register IPC IRQ %d\n",
862 sdev->ipc_irq);
863 goto free_irq_vector;
864 }
865
866 pci_set_master(pci);
867 synchronize_irq(pci->irq);
868
869 /*
870 * clear TCSEL to clear playback on some HD Audio
871 * codecs. PCI TCSEL is defined in the Intel manuals.
872 */
873 snd_sof_pci_update_bits(sdev, PCI_TCSEL, 0x07, 0);
874
875 /* init HDA capabilities */
876 ret = hda_init_caps(sdev);
877 if (ret < 0)
878 goto free_ipc_irq;
879
880 /* enable ppcap interrupt */
881 hda_dsp_ctrl_ppcap_enable(sdev, true);
882 hda_dsp_ctrl_ppcap_int_enable(sdev, true);
883
884 /* set default mailbox offset for FW ready message */
885 sdev->dsp_box.offset = HDA_DSP_MBOX_UPLINK_OFFSET;
886
887 INIT_DELAYED_WORK(&hdev->d0i3_work, hda_dsp_d0i3_work);
888
889 return 0;
890
891 free_ipc_irq:
892 free_irq(sdev->ipc_irq, sdev);
893 free_irq_vector:
894 if (sdev->msi_enabled)
895 pci_free_irq_vectors(pci);
896 free_streams:
897 hda_dsp_stream_free(sdev);
898 /* dsp_unmap: not currently used */
899 iounmap(sdev->bar[HDA_DSP_BAR]);
900 hdac_bus_unmap:
901 iounmap(bus->remap_addr);
902 hda_codec_i915_exit(sdev);
903 err:
904 return ret;
905 }
906
hda_dsp_remove(struct snd_sof_dev * sdev)907 int hda_dsp_remove(struct snd_sof_dev *sdev)
908 {
909 struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
910 struct hdac_bus *bus = sof_to_bus(sdev);
911 struct pci_dev *pci = to_pci_dev(sdev->dev);
912 const struct sof_intel_dsp_desc *chip = hda->desc;
913
914 /* cancel any attempt for DSP D0I3 */
915 cancel_delayed_work_sync(&hda->d0i3_work);
916
917 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
918 /* codec removal, invoke bus_device_remove */
919 snd_hdac_ext_bus_device_remove(bus);
920 #endif
921
922 hda_sdw_exit(sdev);
923
924 if (!IS_ERR_OR_NULL(hda->dmic_dev))
925 platform_device_unregister(hda->dmic_dev);
926
927 /* disable DSP IRQ */
928 snd_sof_dsp_update_bits(sdev, HDA_DSP_PP_BAR, SOF_HDA_REG_PP_PPCTL,
929 SOF_HDA_PPCTL_PIE, 0);
930
931 /* disable CIE and GIE interrupts */
932 snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR, SOF_HDA_INTCTL,
933 SOF_HDA_INT_CTRL_EN | SOF_HDA_INT_GLOBAL_EN, 0);
934
935 /* disable cores */
936 if (chip)
937 hda_dsp_core_reset_power_down(sdev, chip->host_managed_cores_mask);
938
939 /* disable DSP */
940 snd_sof_dsp_update_bits(sdev, HDA_DSP_PP_BAR, SOF_HDA_REG_PP_PPCTL,
941 SOF_HDA_PPCTL_GPROCEN, 0);
942
943 free_irq(sdev->ipc_irq, sdev);
944 if (sdev->msi_enabled)
945 pci_free_irq_vectors(pci);
946
947 hda_dsp_stream_free(sdev);
948 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
949 snd_hdac_link_free_all(bus);
950 #endif
951
952 iounmap(sdev->bar[HDA_DSP_BAR]);
953 iounmap(bus->remap_addr);
954
955 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
956 snd_hdac_ext_bus_exit(bus);
957 #endif
958 hda_codec_i915_exit(sdev);
959
960 return 0;
961 }
962
963 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
hda_generic_machine_select(struct snd_sof_dev * sdev)964 static int hda_generic_machine_select(struct snd_sof_dev *sdev)
965 {
966 struct hdac_bus *bus = sof_to_bus(sdev);
967 struct snd_soc_acpi_mach_params *mach_params;
968 struct snd_soc_acpi_mach *hda_mach;
969 struct snd_sof_pdata *pdata = sdev->pdata;
970 const char *tplg_filename;
971 const char *idisp_str;
972 const char *dmic_str;
973 int dmic_num = 0;
974 int codec_num = 0;
975 int i;
976
977 /* codec detection */
978 if (!bus->codec_mask) {
979 dev_info(bus->dev, "no hda codecs found!\n");
980 } else {
981 dev_info(bus->dev, "hda codecs found, mask %lx\n",
982 bus->codec_mask);
983
984 for (i = 0; i < HDA_MAX_CODECS; i++) {
985 if (bus->codec_mask & (1 << i))
986 codec_num++;
987 }
988
989 /*
990 * If no machine driver is found, then:
991 *
992 * generic hda machine driver can handle:
993 * - one HDMI codec, and/or
994 * - one external HDAudio codec
995 */
996 if (!pdata->machine && codec_num <= 2) {
997 hda_mach = snd_soc_acpi_intel_hda_machines;
998
999 /* topology: use the info from hda_machines */
1000 pdata->tplg_filename =
1001 hda_mach->sof_tplg_filename;
1002
1003 dev_info(bus->dev, "using HDA machine driver %s now\n",
1004 hda_mach->drv_name);
1005
1006 if (codec_num == 1 && HDA_IDISP_CODEC(bus->codec_mask))
1007 idisp_str = "-idisp";
1008 else
1009 idisp_str = "";
1010
1011 /* first check NHLT for DMICs */
1012 dmic_num = check_nhlt_dmic(sdev);
1013
1014 /* allow for module parameter override */
1015 if (hda_dmic_num != -1)
1016 dmic_num = hda_dmic_num;
1017
1018 switch (dmic_num) {
1019 case 1:
1020 dmic_str = "-1ch";
1021 break;
1022 case 2:
1023 dmic_str = "-2ch";
1024 break;
1025 case 3:
1026 dmic_str = "-3ch";
1027 break;
1028 case 4:
1029 dmic_str = "-4ch";
1030 break;
1031 default:
1032 dmic_num = 0;
1033 dmic_str = "";
1034 break;
1035 }
1036
1037 tplg_filename = pdata->tplg_filename;
1038 tplg_filename = fixup_tplg_name(sdev, tplg_filename,
1039 idisp_str, dmic_str);
1040 if (!tplg_filename)
1041 return -EINVAL;
1042
1043 dev_info(bus->dev,
1044 "DMICs detected in NHLT tables: %d\n",
1045 dmic_num);
1046
1047 pdata->machine = hda_mach;
1048 pdata->tplg_filename = tplg_filename;
1049 }
1050 }
1051
1052 /* used by hda machine driver to create dai links */
1053 if (pdata->machine) {
1054 mach_params = (struct snd_soc_acpi_mach_params *)
1055 &pdata->machine->mach_params;
1056 mach_params->codec_mask = bus->codec_mask;
1057 mach_params->common_hdmi_codec_drv = hda_codec_use_common_hdmi;
1058 mach_params->dmic_num = dmic_num;
1059 }
1060
1061 return 0;
1062 }
1063 #else
hda_generic_machine_select(struct snd_sof_dev * sdev)1064 static int hda_generic_machine_select(struct snd_sof_dev *sdev)
1065 {
1066 return 0;
1067 }
1068 #endif
1069
1070 #if IS_ENABLED(CONFIG_SND_SOC_SOF_INTEL_SOUNDWIRE)
1071 /* Check if all Slaves defined on the link can be found */
link_slaves_found(struct snd_sof_dev * sdev,const struct snd_soc_acpi_link_adr * link,struct sdw_intel_ctx * sdw)1072 static bool link_slaves_found(struct snd_sof_dev *sdev,
1073 const struct snd_soc_acpi_link_adr *link,
1074 struct sdw_intel_ctx *sdw)
1075 {
1076 struct hdac_bus *bus = sof_to_bus(sdev);
1077 struct sdw_intel_slave_id *ids = sdw->ids;
1078 int num_slaves = sdw->num_slaves;
1079 unsigned int part_id, link_id, unique_id, mfg_id;
1080 int i, j;
1081
1082 for (i = 0; i < link->num_adr; i++) {
1083 u64 adr = link->adr_d[i].adr;
1084
1085 mfg_id = SDW_MFG_ID(adr);
1086 part_id = SDW_PART_ID(adr);
1087 link_id = SDW_DISCO_LINK_ID(adr);
1088 for (j = 0; j < num_slaves; j++) {
1089 if (ids[j].link_id != link_id ||
1090 ids[j].id.part_id != part_id ||
1091 ids[j].id.mfg_id != mfg_id)
1092 continue;
1093 /*
1094 * we have to check unique id
1095 * if there is more than one
1096 * Slave on the link
1097 */
1098 unique_id = SDW_UNIQUE_ID(adr);
1099 if (link->num_adr == 1 ||
1100 ids[j].id.unique_id == SDW_IGNORED_UNIQUE_ID ||
1101 ids[j].id.unique_id == unique_id) {
1102 dev_dbg(bus->dev,
1103 "found %x at link %d\n",
1104 part_id, link_id);
1105 break;
1106 }
1107 }
1108 if (j == num_slaves) {
1109 dev_dbg(bus->dev,
1110 "Slave %x not found\n",
1111 part_id);
1112 return false;
1113 }
1114 }
1115 return true;
1116 }
1117
hda_sdw_machine_select(struct snd_sof_dev * sdev)1118 static int hda_sdw_machine_select(struct snd_sof_dev *sdev)
1119 {
1120 struct snd_sof_pdata *pdata = sdev->pdata;
1121 const struct snd_soc_acpi_link_adr *link;
1122 struct hdac_bus *bus = sof_to_bus(sdev);
1123 struct snd_soc_acpi_mach *mach;
1124 struct sof_intel_hda_dev *hdev;
1125 u32 link_mask;
1126 int i;
1127
1128 hdev = pdata->hw_pdata;
1129 link_mask = hdev->info.link_mask;
1130
1131 /*
1132 * Select SoundWire machine driver if needed using the
1133 * alternate tables. This case deals with SoundWire-only
1134 * machines, for mixed cases with I2C/I2S the detection relies
1135 * on the HID list.
1136 */
1137 if (link_mask && !pdata->machine) {
1138 for (mach = pdata->desc->alt_machines;
1139 mach && mach->link_mask; mach++) {
1140 /*
1141 * On some platforms such as Up Extreme all links
1142 * are enabled but only one link can be used by
1143 * external codec. Instead of exact match of two masks,
1144 * first check whether link_mask of mach is subset of
1145 * link_mask supported by hw and then go on searching
1146 * link_adr
1147 */
1148 if (~link_mask & mach->link_mask)
1149 continue;
1150
1151 /* No need to match adr if there is no links defined */
1152 if (!mach->links)
1153 break;
1154
1155 link = mach->links;
1156 for (i = 0; i < hdev->info.count && link->num_adr;
1157 i++, link++) {
1158 /*
1159 * Try next machine if any expected Slaves
1160 * are not found on this link.
1161 */
1162 if (!link_slaves_found(sdev, link, hdev->sdw))
1163 break;
1164 }
1165 /* Found if all Slaves are checked */
1166 if (i == hdev->info.count || !link->num_adr)
1167 break;
1168 }
1169 if (mach && mach->link_mask) {
1170 dev_dbg(bus->dev,
1171 "SoundWire machine driver %s topology %s\n",
1172 mach->drv_name,
1173 mach->sof_tplg_filename);
1174 pdata->machine = mach;
1175 mach->mach_params.links = mach->links;
1176 mach->mach_params.link_mask = mach->link_mask;
1177 mach->mach_params.platform = dev_name(sdev->dev);
1178 pdata->fw_filename = mach->sof_fw_filename;
1179 pdata->tplg_filename = mach->sof_tplg_filename;
1180 } else {
1181 dev_info(sdev->dev,
1182 "No SoundWire machine driver found\n");
1183 }
1184 }
1185
1186 return 0;
1187 }
1188 #else
hda_sdw_machine_select(struct snd_sof_dev * sdev)1189 static int hda_sdw_machine_select(struct snd_sof_dev *sdev)
1190 {
1191 return 0;
1192 }
1193 #endif
1194
hda_set_mach_params(const struct snd_soc_acpi_mach * mach,struct device * dev)1195 void hda_set_mach_params(const struct snd_soc_acpi_mach *mach,
1196 struct device *dev)
1197 {
1198 struct snd_soc_acpi_mach_params *mach_params;
1199
1200 mach_params = (struct snd_soc_acpi_mach_params *)&mach->mach_params;
1201 mach_params->platform = dev_name(dev);
1202 }
1203
hda_machine_select(struct snd_sof_dev * sdev)1204 void hda_machine_select(struct snd_sof_dev *sdev)
1205 {
1206 struct snd_sof_pdata *sof_pdata = sdev->pdata;
1207 const struct sof_dev_desc *desc = sof_pdata->desc;
1208 struct snd_soc_acpi_mach *mach;
1209
1210 mach = snd_soc_acpi_find_machine(desc->machines);
1211 if (mach) {
1212 /*
1213 * If tplg file name is overridden, use it instead of
1214 * the one set in mach table
1215 */
1216 if (!sof_pdata->tplg_filename)
1217 sof_pdata->tplg_filename = mach->sof_tplg_filename;
1218
1219 sof_pdata->machine = mach;
1220
1221 if (mach->link_mask) {
1222 mach->mach_params.links = mach->links;
1223 mach->mach_params.link_mask = mach->link_mask;
1224 }
1225 }
1226
1227 /*
1228 * If I2S fails, try SoundWire
1229 */
1230 hda_sdw_machine_select(sdev);
1231
1232 /*
1233 * Choose HDA generic machine driver if mach is NULL.
1234 * Otherwise, set certain mach params.
1235 */
1236 hda_generic_machine_select(sdev);
1237
1238 if (!sof_pdata->machine)
1239 dev_warn(sdev->dev, "warning: No matching ASoC machine driver found\n");
1240 }
1241
1242 MODULE_LICENSE("Dual BSD/GPL");
1243 MODULE_IMPORT_NS(SND_SOC_SOF_HDA_AUDIO_CODEC);
1244 MODULE_IMPORT_NS(SND_SOC_SOF_HDA_AUDIO_CODEC_I915);
1245 MODULE_IMPORT_NS(SND_SOC_SOF_XTENSA);
1246 MODULE_IMPORT_NS(SOUNDWIRE_INTEL_INIT);
1247
