diff options
Diffstat (limited to '0003-brcmfmac-Add-support-for-first-trying-to-get-a-board.patch')
| -rw-r--r-- | 0003-brcmfmac-Add-support-for-first-trying-to-get-a-board.patch | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/0003-brcmfmac-Add-support-for-first-trying-to-get-a-board.patch b/0003-brcmfmac-Add-support-for-first-trying-to-get-a-board.patch new file mode 100644 index 000000000..d7a3d1be3 --- /dev/null +++ b/0003-brcmfmac-Add-support-for-first-trying-to-get-a-board.patch @@ -0,0 +1,83 @@ +From b2c242bfc79d9a1e6c870595c33707720c7e474c Mon Sep 17 00:00:00 2001 +From: Hans de Goede <hdegoede@redhat.com> +Date: Fri, 28 Sep 2018 00:06:51 +0200 +Subject: [PATCH 3/5] 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> +--- + .../broadcom/brcm80211/brcmfmac/firmware.c | 27 ++++++++++++++++++- + .../broadcom/brcm80211/brcmfmac/firmware.h | 1 + + 2 files changed, 27 insertions(+), 1 deletion(-) + +diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c +index 13d051cd0fcf..5a7cd5e01b52 100644 +--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c ++++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c +@@ -615,6 +615,31 @@ static int brcmf_fw_complete_request(const struct firmware *fw, + 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; +@@ -627,7 +652,7 @@ static void brcmf_fw_request_done(const struct firmware *fw, void *ctx) + + 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); + } + +diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.h +index 2893e56910f0..a0834be8864e 100644 +--- 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]; + }; + +-- +2.19.0 + |