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https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git
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c4d096c3ca
Add parsing of ACPI DisCo information specific to FDL (File DownLoad). DisCo contains a list of File Sets which can be requested by the device and within each of those a list of individual files to be downloaded to the device. Optionally the contents of the files may also be present in a special ACPI table, called SWFT (SoundWire File Table). Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com> Signed-off-by: Maciej Strozek <mstrozek@opensource.cirrus.com> Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.dev> Link: https://patch.msgid.link/20251020155512.353774-14-ckeepax@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
109 lines
2.8 KiB
C
109 lines
2.8 KiB
C
// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
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// Copyright(c) 2024 Intel Corporation
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/*
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* The MIPI SDCA specification is available for public downloads at
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* https://www.mipi.org/mipi-sdca-v1-0-download
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*/
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#include <linux/acpi.h>
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#include <linux/device.h>
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#include <linux/dmi.h>
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#include <linux/module.h>
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#include <linux/property.h>
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#include <linux/soundwire/sdw.h>
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#include <sound/sdca.h>
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#include <sound/sdca_function.h>
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void sdca_lookup_interface_revision(struct sdw_slave *slave)
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{
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struct fwnode_handle *fwnode = slave->dev.fwnode;
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/*
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* if this property is not present, then the sdca_interface_revision will
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* remain zero, which will be considered as 'not defined' or 'invalid'.
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*/
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fwnode_property_read_u32(fwnode, "mipi-sdw-sdca-interface-revision",
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&slave->sdca_data.interface_revision);
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}
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EXPORT_SYMBOL_NS(sdca_lookup_interface_revision, "SND_SOC_SDCA");
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static void devm_acpi_table_put(void *ptr)
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{
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acpi_put_table((struct acpi_table_header *)ptr);
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}
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void sdca_lookup_swft(struct sdw_slave *slave)
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{
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acpi_status status;
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status = acpi_get_table(ACPI_SIG_SWFT, 0,
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(struct acpi_table_header **)&slave->sdca_data.swft);
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if (ACPI_FAILURE(status))
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dev_info(&slave->dev, "SWFT not available\n");
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else
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devm_add_action_or_reset(&slave->dev, devm_acpi_table_put,
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&slave->sdca_data.swft);
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}
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EXPORT_SYMBOL_NS(sdca_lookup_swft, "SND_SOC_SDCA");
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static bool sdca_device_quirk_rt712_vb(struct sdw_slave *slave)
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{
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struct sdw_slave_id *id = &slave->id;
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int i;
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/*
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* The RT712_VA relies on the v06r04 draft, and the
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* RT712_VB on a more recent v08r01 draft.
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*/
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if (slave->sdca_data.interface_revision < 0x0801)
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return false;
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if (id->mfg_id != 0x025d)
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return false;
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if (id->part_id != 0x712 &&
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id->part_id != 0x713 &&
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id->part_id != 0x716 &&
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id->part_id != 0x717)
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return false;
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for (i = 0; i < slave->sdca_data.num_functions; i++) {
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if (slave->sdca_data.function[i].type == SDCA_FUNCTION_TYPE_SMART_MIC)
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return true;
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}
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return false;
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}
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static bool sdca_device_quirk_skip_func_type_patching(struct sdw_slave *slave)
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{
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const char *vendor, *sku;
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vendor = dmi_get_system_info(DMI_SYS_VENDOR);
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sku = dmi_get_system_info(DMI_PRODUCT_SKU);
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if (vendor && sku &&
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!strcmp(vendor, "Dell Inc.") &&
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(!strcmp(sku, "0C62") || !strcmp(sku, "0C63") || !strcmp(sku, "0C6B")) &&
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slave->sdca_data.interface_revision == 0x061c &&
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slave->id.mfg_id == 0x01fa && slave->id.part_id == 0x4243)
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return true;
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return false;
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}
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bool sdca_device_quirk_match(struct sdw_slave *slave, enum sdca_quirk quirk)
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{
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switch (quirk) {
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case SDCA_QUIRKS_RT712_VB:
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return sdca_device_quirk_rt712_vb(slave);
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case SDCA_QUIRKS_SKIP_FUNC_TYPE_PATCHING:
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return sdca_device_quirk_skip_func_type_patching(slave);
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default:
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break;
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}
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return false;
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}
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EXPORT_SYMBOL_NS(sdca_device_quirk_match, "SND_SOC_SDCA");
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