1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
// SPDX-License-Identifier: ISC
/*
* Copyright The Asahi Linux Contributors
*/
#include <linux/acpi.h>
#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");
}
}
|
