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
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
Date: Mon, 8 Jun 2015 16:59:31 +0200
Subject: [PATCH] brcmfmac: use bcm47xx platform NVRAM as fallback
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
---
--- a/drivers/net/wireless/brcm80211/brcmfmac/firmware.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/firmware.c
@@ -19,6 +19,9 @@
#include <linux/device.h>
#include <linux/firmware.h>
#include <linux/module.h>
+#if IS_ENABLED(CONFIG_BCM47XX_NVRAM)
+#include <linux/bcm47xx_nvram.h>
+#endif
#include "debug.h"
#include "firmware.h"
@@ -424,17 +427,42 @@ struct brcmf_fw {
static void brcmf_fw_request_nvram_done(const struct firmware *fw, void *ctx)
{
struct brcmf_fw *fwctx = ctx;
+#if IS_ENABLED(CONFIG_BCM47XX_NVRAM)
+ const u8 *bcm47xx_nvram = NULL;
+ size_t bcm47xx_nvram_len;
+#endif
+ const u8 *data = NULL;
+ size_t data_len;
u32 nvram_length = 0;
void *nvram = NULL;
brcmf_dbg(TRACE, "enter: dev=%s\n", dev_name(fwctx->dev));
- if (!fw && !(fwctx->flags & BRCMF_FW_REQ_NV_OPTIONAL))
+ if (fw) {
+ data = fw->data;
+ data_len = fw->size;
+ }
+#if IS_ENABLED(CONFIG_BCM47XX_NVRAM)
+ else {
+ bcm47xx_nvram = bcm47xx_nvram_get_contents(&bcm47xx_nvram_len);
+ if (bcm47xx_nvram) {
+ data = bcm47xx_nvram;
+ data_len = bcm47xx_nvram_len;
+ brcmf_err("Found platform NVRAM (%zu B)\n", data_len);
+ }
+ }
+#endif
+ if (!data && !(fwctx->flags & BRCMF_FW_REQ_NV_OPTIONAL))
goto fail;
- if (fw) {
- nvram = brcmf_fw_nvram_strip(fw->data, fw->size, &nvram_length,
+ if (data) {
+ nvram = brcmf_fw_nvram_strip(data, data_len, &nvram_length,
fwctx->domain_nr, fwctx->bus_nr);
- release_firmware(fw);
+ if (fw)
+ release_firmware(fw);
+#if IS_ENABLED(CONFIG_BCM47XX_NVRAM)
+ if (bcm47xx_nvram)
+ bcm47xx_nvram_release_contents(bcm47xx_nvram);
+#endif
if (!nvram && !(fwctx->flags & BRCMF_FW_REQ_NV_OPTIONAL))
goto fail;
}
--- a/drivers/net/wireless/brcm80211/brcmfmac/debug.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/debug.h
@@ -17,6 +17,8 @@
#ifndef BRCMFMAC_DEBUG_H
#define BRCMFMAC_DEBUG_H
+#include <linux/net.h>
+
/* message levels */
#define BRCMF_TRACE_VAL 0x00000002
#define BRCMF_INFO_VAL 0x00000004
|
