78 lines
2.8 KiB
Diff
78 lines
2.8 KiB
Diff
|
From eae8e50669e15002b195177212a6e25afbe7cf4d Mon Sep 17 00:00:00 2001
|
||
|
|
From: Hans de Goede <hdegoede@redhat.com>
|
||
|
|
Date: Wed, 10 Oct 2018 13:01:00 +0200
|
||
|
|
Subject: [PATCH] brcmfmac: Add support for first trying to get a board
|
||
|
|
specific nvram file
|
||
|
|
|
||
|
|
The nvram files which some brcmfmac chips need are board-specific. To be
|
||
|
|
able to distribute these as part of linux-firmware, so that devices with
|
||
|
|
such a wifi chip will work OOTB, multiple (one per board) versions must
|
||
|
|
co-exist under /lib/firmware.
|
||
|
|
|
||
|
|
This commit adds support for callers of the brcmfmac/firmware.c code to
|
||
|
|
pass in a board_type parameter through the request structure.
|
||
|
|
|
||
|
|
If that parameter is set then the code will first try to load
|
||
|
|
chipmodel.board_type.txt before falling back to the old chipmodel.txt name.
|
||
|
|
|
||
|
|
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
|
||
|
|
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
|
||
|
|
---
|
||
|
|
.../broadcom/brcm80211/brcmfmac/firmware.c | 27 +++++++++++++++++++++-
|
||
|
|
.../broadcom/brcm80211/brcmfmac/firmware.h | 1 +
|
||
|
|
2 files changed, 27 insertions(+), 1 deletion(-)
|
||
|
|
|
||
|
|
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
|
||
|
|
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
|
||
|
|
@@ -532,6 +532,31 @@ static int brcmf_fw_complete_request(con
|
||
|
|
return (cur->flags & BRCMF_FW_REQF_OPTIONAL) ? 0 : ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
+static int brcmf_fw_request_firmware(const struct firmware **fw,
|
||
|
|
+ struct brcmf_fw *fwctx)
|
||
|
|
+{
|
||
|
|
+ struct brcmf_fw_item *cur = &fwctx->req->items[fwctx->curpos];
|
||
|
|
+ int ret;
|
||
|
|
+
|
||
|
|
+ /* nvram files are board-specific, first try a board-specific path */
|
||
|
|
+ if (cur->type == BRCMF_FW_TYPE_NVRAM && fwctx->req->board_type) {
|
||
|
|
+ char alt_path[BRCMF_FW_NAME_LEN];
|
||
|
|
+
|
||
|
|
+ strlcpy(alt_path, cur->path, BRCMF_FW_NAME_LEN);
|
||
|
|
+ /* strip .txt at the end */
|
||
|
|
+ alt_path[strlen(alt_path) - 4] = 0;
|
||
|
|
+ strlcat(alt_path, ".", BRCMF_FW_NAME_LEN);
|
||
|
|
+ strlcat(alt_path, fwctx->req->board_type, BRCMF_FW_NAME_LEN);
|
||
|
|
+ strlcat(alt_path, ".txt", BRCMF_FW_NAME_LEN);
|
||
|
|
+
|
||
|
|
+ ret = request_firmware(fw, alt_path, fwctx->dev);
|
||
|
|
+ if (ret == 0)
|
||
|
|
+ return ret;
|
||
|
|
+ }
|
||
|
|
+
|
||
|
|
+ return request_firmware(fw, cur->path, fwctx->dev);
|
||
|
|
+}
|
||
|
|
+
|
||
|
|
static void brcmf_fw_request_done(const struct firmware *fw, void *ctx)
|
||
|
|
{
|
||
|
|
struct brcmf_fw *fwctx = ctx;
|
||
|
|
@@ -544,7 +569,7 @@ static void brcmf_fw_request_done(const
|
||
|
|
|
||
|
|
while (ret == 0 && ++fwctx->curpos < fwctx->req->n_items) {
|
||
|
|
cur = &fwctx->req->items[fwctx->curpos];
|
||
|
|
- request_firmware(&fw, cur->path, fwctx->dev);
|
||
|
|
+ brcmf_fw_request_firmware(&fw, fwctx);
|
||
|
|
ret = brcmf_fw_complete_request(fw, ctx);
|
||
|
|
}
|
||
|
|
|
||
|
|
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.h
|
||
|
|
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.h
|
||
|
|
@@ -70,6 +70,7 @@ struct brcmf_fw_request {
|
||
|
|
u16 domain_nr;
|
||
|
|
u16 bus_nr;
|
||
|
|
u32 n_items;
|
||
|
|
+ const char *board_type;
|
||
|
|
struct brcmf_fw_item items[0];
|
||
|
|
};
|
||
|
|
|