From d7c31d1dbe89a54db8e244c2b0d746f58a1bd8ad Mon Sep 17 00:00:00 2001 From: Anil Kumar Date: Fri, 18 Sep 2020 15:30:56 -0700 Subject: drivers/soundwire/alc1308 : Add ALC1308 soundwire device This patch adds new soundwire device ALC1308 The codec properties are filled out as best as possible with the datasheet as a reference. The ACPI address for the codec is calculated with the information in the codec driver combined with the devicetree.cb hierarchy where the link and unique IDs are extracted from the device path. The unique ID is calculated from schematics by referring to ASEL[1:0] strap settings. Datasheet of ALC1308 provides info about the mapping of ASEL strap settings to unique ID For example this device is connected to master link ID 1 and has strap settings configuring it for unique ID 2. chip drivers/soundwire/alc1308 register "desc" = ""Left Speaker"" device generic 1.2 on end end Bug=None Test=Build and boot on TGLRVP.Extract SSDT and confirm that the entries for PCI0.HDAS.SNDW are present for ALC1308 Test speaker out functionality Signed-off-by: Anil Kumar Change-Id: Ibf3f1d5c6881cbd106e96ad1ff17ca216aa272ac Reviewed-on: https://review.coreboot.org/c/coreboot/+/51042 Reviewed-by: Duncan Laurie Reviewed-by: Sathyanarayana Nujella Tested-by: build bot (Jenkins) --- src/drivers/soundwire/alc1308/Kconfig | 2 + src/drivers/soundwire/alc1308/Makefile.inc | 1 + src/drivers/soundwire/alc1308/alc1308.c | 151 +++++++++++++++++++++++++++++ src/drivers/soundwire/alc1308/chip.h | 11 +++ 4 files changed, 165 insertions(+) create mode 100644 src/drivers/soundwire/alc1308/Kconfig create mode 100644 src/drivers/soundwire/alc1308/Makefile.inc create mode 100644 src/drivers/soundwire/alc1308/alc1308.c create mode 100644 src/drivers/soundwire/alc1308/chip.h (limited to 'src/drivers/soundwire/alc1308') diff --git a/src/drivers/soundwire/alc1308/Kconfig b/src/drivers/soundwire/alc1308/Kconfig new file mode 100644 index 0000000000..c2e97313c1 --- /dev/null +++ b/src/drivers/soundwire/alc1308/Kconfig @@ -0,0 +1,2 @@ +config DRIVERS_SOUNDWIRE_ALC1308 + bool diff --git a/src/drivers/soundwire/alc1308/Makefile.inc b/src/drivers/soundwire/alc1308/Makefile.inc new file mode 100644 index 0000000000..6c3458fa0e --- /dev/null +++ b/src/drivers/soundwire/alc1308/Makefile.inc @@ -0,0 +1 @@ +ramstage-$(CONFIG_DRIVERS_SOUNDWIRE_ALC1308) += alc1308.c diff --git a/src/drivers/soundwire/alc1308/alc1308.c b/src/drivers/soundwire/alc1308/alc1308.c new file mode 100644 index 0000000000..df60d47bf7 --- /dev/null +++ b/src/drivers/soundwire/alc1308/alc1308.c @@ -0,0 +1,151 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include "chip.h" + +static struct soundwire_address alc1308_address = { + .version = SOUNDWIRE_VERSION_1_1, + .manufacturer_id = MIPI_MFG_ID_REALTEK, + .part_id = MIPI_DEV_ID_REALTEK_ALC1308, + .class = MIPI_CLASS_NONE +}; + +static struct soundwire_slave alc1308_slave = { + .wake_up_unavailable = false, + .test_mode_supported = false, + .clock_stop_mode1_supported = true, + .simplified_clockstopprepare_sm_supported = true, + .clockstopprepare_hard_reset_behavior = false, + .highPHY_capable = false, + .paging_supported = false, + .bank_delay_supported = false, + .port15_read_behavior = false, + .source_port_list = SOUNDWIRE_PORT(2) | SOUNDWIRE_PORT(4), + .sink_port_list = SOUNDWIRE_PORT(1) +}; + +static struct soundwire_audio_mode alc1308_audio_mode = { + /* Bus frequency must be 1/2/4/8 divider of supported input frequencies. */ + .bus_frequency_configs_count = 12, + .bus_frequency_configs = { + 9600 * KHz, 4800 * KHz, 2400 * KHz, 1200 * KHz, /* 9.6 MHz */ + 12000 * KHz, 6000 * KHz, 3000 * KHz, 1500 * KHz, /* 12 MHz */ + 12288 * KHz, 6144 * KHz, 3072 * KHz, 1536 * KHz /* 12.288 MHz */ + }, + /* Support 16 KHz to 96 KHz sampling frequency */ + .sampling_frequency_configs_count = 8, + .sampling_frequency_configs = { + 16 * KHz, + 22.05 * KHz, + 24 * KHz, + 32 * KHz, + 44.1 * KHz, + 48 * KHz, + 88.2 * KHz, + 96 * KHz, + }, + .prepare_channel_behavior = CHANNEL_PREPARE_ANY_FREQUENCY +}; + +static struct soundwire_dpn alc1308_dp1 = { + .port_wordlength_configs_count = 1, + .port_wordlength_configs = { 32 }, + .data_port_type = FULL_DATA_PORT, + .max_grouping_supported = BLOCK_GROUP_COUNT_1, + .simplified_channelprepare_sm = false, + .imp_def_dpn_interrupts_supported = 0, + .min_channel_number = 1, + .max_channel_number = 2, + .modes_supported = MODE_ISOCHRONOUS | MODE_TX_CONTROLLED | + MODE_RX_CONTROLLED | MODE_FULL_ASYNCHRONOUS, + .block_packing_mode = true, + .port_audio_mode_count = 1, + .port_audio_mode_list = { 0 } +}; + +static const struct soundwire_codec alc1308_codec = { + .slave = &alc1308_slave, + .audio_mode = { &alc1308_audio_mode }, + .dpn = { + { + /* Data Input for Speaker Path */ + .port = 1, + .sink = &alc1308_dp1 + }, + { + /* Data out for I.V sensing */ + .port = 2, + .source = &alc1308_dp1 + }, + { + /* Data out for I.V sensing */ + .port = 4, + .source = &alc1308_dp1 + } + } + +}; + +static void soundwire_alc1308_fill_ssdt(const struct device *dev) +{ + struct drivers_soundwire_alc1308_config *config = dev->chip_info; + const char *scope = acpi_device_scope(dev); + struct acpi_dp *dsd; + + if (!dev->enabled || !scope) + return; + + acpigen_write_scope(scope); + acpigen_write_device(acpi_device_name(dev)); + + /* Set codec address IDs. */ + alc1308_address.link_id = dev->path.generic.id; + alc1308_address.unique_id = dev->path.generic.subid; + + acpigen_write_ADR_soundwire_device(&alc1308_address); + acpigen_write_name_string("_DDN", config->desc ? : dev->chip_ops->name); + acpigen_write_STA(acpi_device_status(dev)); + + dsd = acpi_dp_new_table("_DSD"); + soundwire_gen_codec(dsd, &alc1308_codec, NULL); + acpi_dp_write(dsd); + + acpigen_pop_len(); /* Device */ + acpigen_pop_len(); /* Scope */ +} + +static const char *soundwire_alc1308_acpi_name(const struct device *dev) +{ + struct drivers_soundwire_alc1308_config *config = dev->chip_info; + static char name[5]; + + if (config->name) + return config->name; + snprintf(name, sizeof(name), "SW%1X%1X", dev->path.generic.id, dev->path.generic.subid); + return name; +} + +static struct device_operations soundwire_alc1308_ops = { + .read_resources = noop_read_resources, + .set_resources = noop_set_resources, + .acpi_name = soundwire_alc1308_acpi_name, + .acpi_fill_ssdt = soundwire_alc1308_fill_ssdt, +}; + +static void soundwire_alc1308_enable(struct device *dev) +{ + dev->ops = &soundwire_alc1308_ops; +} + +struct chip_operations drivers_soundwire_alc1308_ops = { + CHIP_NAME("Realtek ALC1308 SoundWire Codec") + .enable_dev = soundwire_alc1308_enable +}; diff --git a/src/drivers/soundwire/alc1308/chip.h b/src/drivers/soundwire/alc1308/chip.h new file mode 100644 index 0000000000..ed07cff5c4 --- /dev/null +++ b/src/drivers/soundwire/alc1308/chip.h @@ -0,0 +1,11 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#ifndef __DRIVERS_SOUNDWIRE_ALC1308_CHIP_H__ +#define __DRIVERS_SOUNDWIRE_ALC1308_CHIP_H__ + +struct drivers_soundwire_alc1308_config { + const char *name; + const char *desc; +}; + +#endif /* __DRIVERS_SOUNDWIRE_ALC1308_CHIP_H__ */ -- cgit v1.2.3