From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- .../wireless/broadcom/brcm80211/brcmfmac/acpi.c | 51 ++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 drivers/net/wireless/broadcom/brcm80211/brcmfmac/acpi.c (limited to 'drivers/net/wireless/broadcom/brcm80211/brcmfmac/acpi.c') diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/acpi.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/acpi.c new file mode 100644 index 000000000..c4a54861b --- /dev/null +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/acpi.c @@ -0,0 +1,51 @@ +// SPDX-License-Identifier: ISC +/* + * Copyright The Asahi Linux Contributors + */ + +#include +#include "debug.h" +#include "core.h" +#include "common.h" + +void brcmf_acpi_probe(struct device *dev, enum brcmf_bus_type bus_type, + struct brcmf_mp_device *settings) +{ + acpi_status status; + const union acpi_object *o; + struct acpi_buffer buf = {ACPI_ALLOCATE_BUFFER, NULL}; + struct acpi_device *adev = ACPI_COMPANION(dev); + + if (!adev) + return; + + if (!ACPI_FAILURE(acpi_dev_get_property(adev, "module-instance", + ACPI_TYPE_STRING, &o))) { + brcmf_dbg(INFO, "ACPI module-instance=%s\n", o->string.pointer); + settings->board_type = devm_kasprintf(dev, GFP_KERNEL, + "apple,%s", + o->string.pointer); + } else { + brcmf_dbg(INFO, "No ACPI module-instance\n"); + return; + } + + status = acpi_evaluate_object(adev->handle, "RWCV", NULL, &buf); + o = buf.pointer; + if (!ACPI_FAILURE(status) && o && o->type == ACPI_TYPE_BUFFER && + o->buffer.length >= 2) { + char *antenna_sku = devm_kzalloc(dev, 3, GFP_KERNEL); + + if (antenna_sku) { + memcpy(antenna_sku, o->buffer.pointer, 2); + brcmf_dbg(INFO, "ACPI RWCV data=%*phN antenna-sku=%s\n", + (int)o->buffer.length, o->buffer.pointer, + antenna_sku); + settings->antenna_sku = antenna_sku; + } + + kfree(buf.pointer); + } else { + brcmf_dbg(INFO, "No ACPI antenna-sku\n"); + } +} -- cgit v1.2.3