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drivers/sof: Add new driver to generate ACPI _DSD table

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Add a new chip driver for boards which use SOF (Sound Open Firmware)
OS drivers, which will be attached to the HDAS device and generate
entries in an ACPI _DSD table for the OS driver to use. This will allow
the OS drivers to easily determine the correct topology for the speaker
and jack amplifiers and correct microphone configuration.

TEST=tested with rest of patch train

Change-Id: Ie0431b2002287f35245cbf959828e931d7f375b2
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74813
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: CoolStar <coolstarorganization@gmail.com>
Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>
This commit is contained in:
Matt DeVillier
2023-01-17 10:57:42 -06:00
committed by Matt DeVillier
parent ab05964b91
commit 3a4ac3a85e
4 changed files with 132 additions and 0 deletions
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85
src/drivers/sof/sof.c Normal file
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/* SPDX-License-Identifier: GPL-2.0-only */
#include <acpi/acpi_device.h>
#include <acpi/acpigen.h>
#include <device/device.h>
#include <device/path.h>
#include <string.h>
#include "chip.h"
static const char *get_spkr_tplg_str(unsigned int index)
{
switch (index) {
case 1: return "max98373";
case 2: return "max98360a";
case 3: return "max98357a";
case 4: return "max98390";
case 5: return "rt1011";
case 6: return "rt1015";
default: return "default";
}
}
static const char *get_jack_tplg_str(unsigned int index)
{
switch (index) {
case 1: return "cs42l42";
case 2: return "da7219";
case 3: return "nau8825";
case 4: return "rt5682";
default: return "default";
}
}
static const char *get_mic_tplg_str(unsigned int index)
{
switch (index) {
case 1: return "1ch";
case 2: return "2ch-pdm0";
case 3: return "2ch-pdm1";
case 4: return "4ch";
default: return "default";
}
}
static void sof_fill_ssdt_generator(const struct device *dev)
{
struct drivers_sof_config *config = dev->chip_info;
const char *scope = acpi_device_scope(dev);
struct acpi_dp *dsd;
if (!dev->enabled || !config || !scope)
return;
/* Device */
acpigen_write_scope(scope);
/* DSD */
dsd = acpi_dp_new_table("_DSD");
acpi_dp_add_string(dsd, "speaker-tplg",
get_spkr_tplg_str(config->spkr_tplg));
acpi_dp_add_string(dsd, "hp-tplg",
get_jack_tplg_str(config->jack_tplg));
acpi_dp_add_string(dsd, "mic-tplg",
get_mic_tplg_str(config->mic_tplg));
acpi_dp_write(dsd);
acpigen_pop_len(); /* Scope */
}
static struct device_operations sof_ops = {
.read_resources = noop_read_resources,
.set_resources = noop_set_resources,
.acpi_fill_ssdt = sof_fill_ssdt_generator,
};
static void sof_enable(struct device *dev)
{
dev->ops = &sof_ops;
}
struct chip_operations drivers_sof_ops = {
CHIP_NAME("SOF")
.enable_dev = sof_enable
};