52 lines
1.3 KiB
C
52 lines
1.3 KiB
C
// SPDX-License-Identifier: ISC
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/*
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* Copyright The Asahi Linux Contributors
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*/
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#include <linux/acpi.h>
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#include "debug.h"
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#include "core.h"
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#include "common.h"
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void brcmf_acpi_probe(struct device *dev, enum brcmf_bus_type bus_type,
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struct brcmf_mp_device *settings)
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{
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acpi_status status;
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const union acpi_object *o;
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struct acpi_buffer buf = {ACPI_ALLOCATE_BUFFER, NULL};
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struct acpi_device *adev = ACPI_COMPANION(dev);
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if (!adev)
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return;
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if (!ACPI_FAILURE(acpi_dev_get_property(adev, "module-instance",
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ACPI_TYPE_STRING, &o))) {
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brcmf_dbg(INFO, "ACPI module-instance=%s\n", o->string.pointer);
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settings->board_type = devm_kasprintf(dev, GFP_KERNEL,
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"apple,%s",
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o->string.pointer);
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} else {
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brcmf_dbg(INFO, "No ACPI module-instance\n");
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return;
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}
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status = acpi_evaluate_object(adev->handle, "RWCV", NULL, &buf);
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o = buf.pointer;
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if (!ACPI_FAILURE(status) && o && o->type == ACPI_TYPE_BUFFER &&
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o->buffer.length >= 2) {
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char *antenna_sku = devm_kzalloc(dev, 3, GFP_KERNEL);
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if (antenna_sku) {
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memcpy(antenna_sku, o->buffer.pointer, 2);
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brcmf_dbg(INFO, "ACPI RWCV data=%*phN antenna-sku=%s\n",
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(int)o->buffer.length, o->buffer.pointer,
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antenna_sku);
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settings->antenna_sku = antenna_sku;
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}
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kfree(buf.pointer);
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} else {
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brcmf_dbg(INFO, "No ACPI antenna-sku\n");
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}
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}
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