From 3a4ac3a85efe5d8c46d6d6173b737f0f98fc6845 Mon Sep 17 00:00:00 2001 From: Matt DeVillier Date: Tue, 17 Jan 2023 10:57:42 -0600 Subject: drivers/sof: Add new driver to generate ACPI _DSD table 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 Reviewed-on: https://review.coreboot.org/c/coreboot/+/74813 Tested-by: build bot (Jenkins) Reviewed-by: CoolStar Reviewed-by: Martin Roth --- src/drivers/sof/sof.c | 85 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 85 insertions(+) create mode 100644 src/drivers/sof/sof.c (limited to 'src/drivers/sof/sof.c') diff --git a/src/drivers/sof/sof.c b/src/drivers/sof/sof.c new file mode 100644 index 0000000000..d11f7300c0 --- /dev/null +++ b/src/drivers/sof/sof.c @@ -0,0 +1,85 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include +#include +#include +#include +#include + +#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 +}; -- cgit v1.2.3