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brcmfmac: firmware: Support passing in multiple board_types

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In order to make use of the multiple alt_path functionality, change
board_type to an array. Bus drivers can pass in a NULL-terminated list
of board type strings to try for the firmware fetch.

Signed-off-by: Hector Martin <marcan@marcan.st>
Signed-off-by: Aun-Ali Zaidi <admin@kodeit.net>
This commit is contained in:
Hector Martin
2021-12-21 17:38:37 +09:00
committed by Aun-Ali Zaidi
parent 9f8862cdc5
commit 2eaa3d689f
4 changed files with 35 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
+25 -10
View File
@@ -594,26 +594,41 @@ static int brcmf_fw_complete_request(const struct firmware *fw,
return (cur->flags & BRCMF_FW_REQF_OPTIONAL) ? 0 : ret;
}
static const char **brcm_alt_fw_paths(const char *path, const char *board_type)
static const char **brcm_alt_fw_paths(const char *path, struct brcmf_fw *fwctx)
{
const char **board_types = fwctx->req->board_types;
int board_type_count = 0;
int i;
char alt_path[BRCMF_FW_NAME_LEN];
char **alt_paths;
const char *suffix;
if (!board_types || !board_types[0])
return NULL;
while (*board_types++)
board_type_count++;
suffix = strrchr(path, '.');
if (!suffix || suffix == path)
return NULL;
/* strip extension at the end */
strscpy(alt_path, path, BRCMF_FW_NAME_LEN);
alt_path[suffix - path] = 0;
alt_paths = kzalloc(sizeof(char *) * (board_type_count + 1),
GFP_KERNEL);
strlcat(alt_path, ".", BRCMF_FW_NAME_LEN);
strlcat(alt_path, board_type, BRCMF_FW_NAME_LEN);
strlcat(alt_path, suffix, BRCMF_FW_NAME_LEN);
board_types = fwctx->req->board_types;
for (i = 0; i < board_type_count; i++) {
/* strip extension at the end */
strscpy(alt_path, path, BRCMF_FW_NAME_LEN);
alt_path[suffix - path] = 0;
alt_paths = kzalloc(sizeof(char *) * 2, GFP_KERNEL);
alt_paths[0] = kstrdup(alt_path, GFP_KERNEL);
strlcat(alt_path, ".", BRCMF_FW_NAME_LEN);
strlcat(alt_path, board_types[i], BRCMF_FW_NAME_LEN);
strlcat(alt_path, suffix, BRCMF_FW_NAME_LEN);
alt_paths[i] = kstrdup(alt_path, GFP_KERNEL);
brcmf_dbg(TRACE, "FW alt path: %s\n", alt_paths[i]);
}
return (const char **)alt_paths;
}
@@ -638,7 +653,7 @@ static int brcmf_fw_request_firmware(const struct firmware **fw,
int ret, i;
/* Files can be board-specific, first try a board-specific path */
if (fwctx->req->board_type) {
if (fwctx->req->board_types) {
const char **alt_paths = brcm_alt_fw_paths(cur->path, fwctx);
if (!alt_paths)
goto fallback;
drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.h
+1 -1
View File
@@ -66,7 +66,7 @@ struct brcmf_fw_request {
u16 domain_nr;
u16 bus_nr;
u32 n_items;
const char *board_type;
const char **board_types;
struct brcmf_fw_item items[];
};
drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
+6 -1
View File
@@ -1877,11 +1877,16 @@ brcmf_pcie_prepare_fw_request(struct brcmf_pciedev_info *devinfo)
fwreq->items[BRCMF_PCIE_FW_NVRAM].flags = BRCMF_FW_REQF_OPTIONAL;
fwreq->items[BRCMF_PCIE_FW_CLM].type = BRCMF_FW_TYPE_BINARY;
fwreq->items[BRCMF_PCIE_FW_CLM].flags = BRCMF_FW_REQF_OPTIONAL;
fwreq->board_type = devinfo->settings->board_type;
/* NVRAM reserves PCI domain 0 for Broadcom's SDK faked bus */
fwreq->domain_nr = pci_domain_nr(devinfo->pdev->bus) + 1;
fwreq->bus_nr = devinfo->pdev->bus->number;
brcmf_dbg(PCIE, "Board: %s\n", devinfo->settings->board_type);
fwreq->board_types = devm_kzalloc(&devinfo->pdev->dev,
sizeof(const char *) * 2,
GFP_KERNEL);
fwreq->board_types[0] = devinfo->settings->board_type;
return fwreq;
}
drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
+3 -1
View File
@@ -4432,7 +4432,9 @@ brcmf_sdio_prepare_fw_request(struct brcmf_sdio *bus)
fwreq->items[BRCMF_SDIO_FW_NVRAM].type = BRCMF_FW_TYPE_NVRAM;
fwreq->items[BRCMF_SDIO_FW_CLM].type = BRCMF_FW_TYPE_BINARY;
fwreq->items[BRCMF_SDIO_FW_CLM].flags = BRCMF_FW_REQF_OPTIONAL;
fwreq->board_type = bus->sdiodev->settings->board_type;
fwreq->board_types = devm_kzalloc(bus->sdiodev->dev,
sizeof(const char *) * 2, GFP_KERNEL);
fwreq->board_types[0] = bus->sdiodev->settings->board_type;
return fwreq;
}