1 // SPDX-License-Identifier: GPL-2.0
2 // Copyright (c) 2019 Jaroslav Kysela <perex@perex.cz>
4 #include <linux/acpi.h>
5 #include <linux/bits.h>
7 #include <linux/module.h>
9 #include <linux/soundwire/sdw.h>
10 #include <linux/soundwire/sdw_intel.h>
11 #include <sound/core.h>
12 #include <sound/intel-dsp-config.h>
13 #include <sound/intel-nhlt.h>
15 static int dsp_driver
;
17 module_param(dsp_driver
, int, 0444);
18 MODULE_PARM_DESC(dsp_driver
, "Force the DSP driver for Intel DSP (0=auto, 1=legacy, 2=SST, 3=SOF)");
20 #define FLAG_SST BIT(0)
21 #define FLAG_SOF BIT(1)
22 #define FLAG_SST_ONLY_IF_DMIC BIT(15)
23 #define FLAG_SOF_ONLY_IF_DMIC BIT(16)
24 #define FLAG_SOF_ONLY_IF_SOUNDWIRE BIT(17)
26 #define FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE (FLAG_SOF_ONLY_IF_DMIC | \
27 FLAG_SOF_ONLY_IF_SOUNDWIRE)
32 const struct dmi_system_id
*dmi_table
;
37 * - the order of similar PCI ID entries is important!
38 * - the first successful match will win
40 static const struct config_entry config_table
[] = {
42 #if IS_ENABLED(CONFIG_SND_SOC_SOF_MERRIFIELD)
49 #if IS_ENABLED(CONFIG_SND_SOC_SOF_APOLLOLAKE)
56 * Apollolake (Broxton-P)
57 * the legacy HDaudio driver is used except on Up Squared (SOF) and
60 #if IS_ENABLED(CONFIG_SND_SOC_SOF_APOLLOLAKE)
64 .dmi_table
= (const struct dmi_system_id
[]) {
66 .ident
= "Up Squared",
68 DMI_MATCH(DMI_SYS_VENDOR
, "AAEON"),
69 DMI_MATCH(DMI_BOARD_NAME
, "UP-APL01"),
76 #if IS_ENABLED(CONFIG_SND_SOC_INTEL_APL)
80 .dmi_table
= (const struct dmi_system_id
[]) {
82 .ident
= "Google Chromebooks",
84 DMI_MATCH(DMI_SYS_VENDOR
, "Google"),
92 * Skylake and Kabylake use legacy HDaudio driver except for Google
96 /* Sunrise Point-LP */
97 #if IS_ENABLED(CONFIG_SND_SOC_INTEL_SKL)
101 .dmi_table
= (const struct dmi_system_id
[]) {
103 .ident
= "Google Chromebooks",
105 DMI_MATCH(DMI_SYS_VENDOR
, "Google"),
112 .flags
= FLAG_SST
| FLAG_SST_ONLY_IF_DMIC
,
117 #if IS_ENABLED(CONFIG_SND_SOC_INTEL_KBL)
121 .dmi_table
= (const struct dmi_system_id
[]) {
123 .ident
= "Google Chromebooks",
125 DMI_MATCH(DMI_SYS_VENDOR
, "Google"),
132 .flags
= FLAG_SST
| FLAG_SST_ONLY_IF_DMIC
,
138 * Geminilake uses legacy HDaudio driver except for Google
142 #if IS_ENABLED(CONFIG_SND_SOC_SOF_GEMINILAKE)
146 .dmi_table
= (const struct dmi_system_id
[]) {
148 .ident
= "Google Chromebooks",
150 DMI_MATCH(DMI_SYS_VENDOR
, "Google"),
159 * CoffeeLake, CannonLake, CometLake, IceLake, TigerLake use legacy
160 * HDaudio driver except for Google Chromebooks and when DMICs are
161 * present. Two cases are required since Coreboot does not expose NHLT
164 * When the Chromebook quirk is not present, it's based on information
165 * that no such device exists. When the quirk is present, it could be
166 * either based on product information or a placeholder.
170 #if IS_ENABLED(CONFIG_SND_SOC_SOF_CANNONLAKE)
174 .dmi_table
= (const struct dmi_system_id
[]) {
176 .ident
= "Google Chromebooks",
178 DMI_MATCH(DMI_SYS_VENDOR
, "Google"),
185 .flags
= FLAG_SOF
| FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE
,
191 #if IS_ENABLED(CONFIG_SND_SOC_SOF_COFFEELAKE)
195 .dmi_table
= (const struct dmi_system_id
[]) {
197 .ident
= "Google Chromebooks",
199 DMI_MATCH(DMI_SYS_VENDOR
, "Google"),
206 .flags
= FLAG_SOF
| FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE
,
211 #if IS_ENABLED(CONFIG_SND_SOC_SOF_COMETLAKE)
216 .dmi_table
= (const struct dmi_system_id
[]) {
218 .ident
= "Google Chromebooks",
220 DMI_MATCH(DMI_SYS_VENDOR
, "Google"),
225 DMI_MATCH(DMI_SYS_VENDOR
, "Dell Inc"),
226 DMI_EXACT_MATCH(DMI_PRODUCT_SKU
, "09C6")
230 /* early version of SKU 09C6 */
232 DMI_MATCH(DMI_SYS_VENDOR
, "Dell Inc"),
233 DMI_EXACT_MATCH(DMI_PRODUCT_SKU
, "0983")
240 .flags
= FLAG_SOF
| FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE
,
247 .dmi_table
= (const struct dmi_system_id
[]) {
250 DMI_MATCH(DMI_SYS_VENDOR
, "Dell Inc"),
251 DMI_EXACT_MATCH(DMI_PRODUCT_SKU
, "098F"),
256 DMI_MATCH(DMI_SYS_VENDOR
, "Dell Inc"),
257 DMI_EXACT_MATCH(DMI_PRODUCT_SKU
, "0990"),
264 .flags
= FLAG_SOF
| FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE
,
270 #if IS_ENABLED(CONFIG_SND_SOC_SOF_ICELAKE)
274 .dmi_table
= (const struct dmi_system_id
[]) {
276 .ident
= "Google Chromebooks",
278 DMI_MATCH(DMI_SYS_VENDOR
, "Google"),
285 .flags
= FLAG_SOF
| FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE
,
291 #if IS_ENABLED(CONFIG_SND_SOC_SOF_TIGERLAKE)
295 .dmi_table
= (const struct dmi_system_id
[]) {
297 .ident
= "Google Chromebooks",
299 DMI_MATCH(DMI_SYS_VENDOR
, "Google"),
306 .flags
= FLAG_SOF
| FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE
,
312 #if IS_ENABLED(CONFIG_SND_SOC_SOF_ELKHARTLAKE)
314 .flags
= FLAG_SOF
| FLAG_SOF_ONLY_IF_DMIC
,
321 static const struct config_entry
*snd_intel_dsp_find_config
322 (struct pci_dev
*pci
, const struct config_entry
*table
, u32 len
)
326 device
= pci
->device
;
327 for (; len
> 0; len
--, table
++) {
328 if (table
->device
!= device
)
330 if (table
->dmi_table
&& !dmi_check_system(table
->dmi_table
))
337 static int snd_intel_dsp_check_dmic(struct pci_dev
*pci
)
339 struct nhlt_acpi_table
*nhlt
;
342 nhlt
= intel_nhlt_init(&pci
->dev
);
344 if (intel_nhlt_get_dmic_geo(&pci
->dev
, nhlt
))
346 intel_nhlt_free(nhlt
);
351 #if IS_ENABLED(CONFIG_SND_SOC_SOF_INTEL_SOUNDWIRE)
352 static int snd_intel_dsp_check_soundwire(struct pci_dev
*pci
)
354 struct sdw_intel_acpi_info info
;
358 handle
= ACPI_HANDLE(&pci
->dev
);
360 ret
= sdw_intel_acpi_scan(handle
, &info
);
364 return info
.link_mask
;
367 static int snd_intel_dsp_check_soundwire(struct pci_dev
*pci
)
373 int snd_intel_dsp_driver_probe(struct pci_dev
*pci
)
375 const struct config_entry
*cfg
;
377 /* Intel vendor only */
378 if (pci
->vendor
!= 0x8086)
379 return SND_INTEL_DSP_DRIVER_ANY
;
381 if (dsp_driver
> 0 && dsp_driver
<= SND_INTEL_DSP_DRIVER_LAST
)
385 * detect DSP by checking class/subclass/prog-id information
386 * class=04 subclass 03 prog-if 00: no DSP, use legacy driver
387 * class=04 subclass 01 prog-if 00: DSP is present
388 * (and may be required e.g. for DMIC or SSP support)
389 * class=04 subclass 03 prog-if 80: use DSP or legacy mode
391 if (pci
->class == 0x040300)
392 return SND_INTEL_DSP_DRIVER_LEGACY
;
393 if (pci
->class != 0x040100 && pci
->class != 0x040380) {
394 dev_err(&pci
->dev
, "Unknown PCI class/subclass/prog-if information (0x%06x) found, selecting HDA legacy driver\n", pci
->class);
395 return SND_INTEL_DSP_DRIVER_LEGACY
;
398 dev_info(&pci
->dev
, "DSP detected with PCI class/subclass/prog-if info 0x%06x\n", pci
->class);
400 /* find the configuration for the specific device */
401 cfg
= snd_intel_dsp_find_config(pci
, config_table
, ARRAY_SIZE(config_table
));
403 return SND_INTEL_DSP_DRIVER_ANY
;
405 if (cfg
->flags
& FLAG_SOF
) {
406 if (cfg
->flags
& FLAG_SOF_ONLY_IF_SOUNDWIRE
&&
407 snd_intel_dsp_check_soundwire(pci
) > 0) {
408 dev_info(&pci
->dev
, "SoundWire enabled on CannonLake+ platform, using SOF driver\n");
409 return SND_INTEL_DSP_DRIVER_SOF
;
411 if (cfg
->flags
& FLAG_SOF_ONLY_IF_DMIC
&&
412 snd_intel_dsp_check_dmic(pci
)) {
413 dev_info(&pci
->dev
, "Digital mics found on Skylake+ platform, using SOF driver\n");
414 return SND_INTEL_DSP_DRIVER_SOF
;
416 if (!(cfg
->flags
& FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE
))
417 return SND_INTEL_DSP_DRIVER_SOF
;
421 if (cfg
->flags
& FLAG_SST
) {
422 if (cfg
->flags
& FLAG_SST_ONLY_IF_DMIC
) {
423 if (snd_intel_dsp_check_dmic(pci
)) {
424 dev_info(&pci
->dev
, "Digital mics found on Skylake+ platform, using SST driver\n");
425 return SND_INTEL_DSP_DRIVER_SST
;
428 return SND_INTEL_DSP_DRIVER_SST
;
432 return SND_INTEL_DSP_DRIVER_LEGACY
;
434 EXPORT_SYMBOL_GPL(snd_intel_dsp_driver_probe
);
436 MODULE_LICENSE("GPL v2");
437 MODULE_DESCRIPTION("Intel DSP config driver");
438 MODULE_IMPORT_NS(SOUNDWIRE_INTEL_INIT
);