From patchwork Tue Jan 4 07:26:29 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hector Martin X-Patchwork-Id: 12703102 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7D856C433F5 for ; Tue, 4 Jan 2022 07:28:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233276AbiADH2g (ORCPT ); Tue, 4 Jan 2022 02:28:36 -0500 Received: from marcansoft.com ([212.63.210.85]:45950 "EHLO mail.marcansoft.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233243AbiADH2e (ORCPT ); Tue, 4 Jan 2022 02:28:34 -0500 Received: from [127.0.0.1] (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: hector@marcansoft.com) by mail.marcansoft.com (Postfix) with ESMTPSA id EF6BD41F5D; Tue, 4 Jan 2022 07:28:24 +0000 (UTC) From: Hector Martin To: Kalle Valo , "David S. Miller" , Jakub Kicinski , Rob Herring , "Rafael J. Wysocki" , Len Brown , Arend van Spriel , Franky Lin , Hante Meuleman , Chi-hsien Lin , Wright Feng , Dmitry Osipenko Cc: Hector Martin , Sven Peter , Alyssa Rosenzweig , Mark Kettenis , =?utf-8?b?UmFmYcWCIE1pxYJlY2tp?= , Pieter-Paul Giesberts , Linus Walleij , Hans de Goede , "John W. Linville" , "brian m. carlson" , Andy Shevchenko , linux-wireless@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, brcm80211-dev-list.pdl@broadcom.com, SHA-cyfmac-dev-list@infineon.com Subject: [PATCH v2 06/35] brcmfmac: firmware: Support passing in multiple board_types Date: Tue, 4 Jan 2022 16:26:29 +0900 Message-Id: <20220104072658.69756-7-marcan@marcan.st> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20220104072658.69756-1-marcan@marcan.st> References: <20220104072658.69756-1-marcan@marcan.st> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org 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. Acked-by: Linus Walleij Signed-off-by: Hector Martin Reviewed-by: Arend van Spriel --- .../broadcom/brcm80211/brcmfmac/firmware.c | 35 ++++++++++++------- .../broadcom/brcm80211/brcmfmac/firmware.h | 2 +- .../broadcom/brcm80211/brcmfmac/pcie.c | 4 ++- .../broadcom/brcm80211/brcmfmac/sdio.c | 2 +- 4 files changed, 27 insertions(+), 16 deletions(-) diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c index 7570dbf22cdd..054ea3ed133e 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c @@ -594,28 +594,39 @@ static int brcmf_fw_complete_request(const struct firmware *fw, return (cur->flags & BRCMF_FW_REQF_OPTIONAL) ? 0 : ret; } -static int brcm_alt_fw_paths(const char *path, const char *board_type, +static int brcm_alt_fw_paths(const char *path, struct brcmf_fw *fwctx, const char *alt_paths[BRCMF_FW_MAX_ALT_PATHS]) { + const char **board_types = fwctx->req->board_types; + unsigned int i; char alt_path[BRCMF_FW_NAME_LEN]; const char *suffix; memset(alt_paths, 0, array_size(sizeof(*alt_paths), BRCMF_FW_MAX_ALT_PATHS)); + if (!board_types[0]) + return -ENOENT; + suffix = strrchr(path, '.'); if (!suffix || suffix == path) return -EINVAL; - /* strip extension at the end */ - strscpy(alt_path, path, BRCMF_FW_NAME_LEN); - alt_path[suffix - path] = 0; + for (i = 0; i < BRCMF_FW_MAX_ALT_PATHS; i++) { + if (!board_types[i]) + break; - strlcat(alt_path, ".", BRCMF_FW_NAME_LEN); - strlcat(alt_path, board_type, BRCMF_FW_NAME_LEN); - strlcat(alt_path, suffix, BRCMF_FW_NAME_LEN); + /* strip extension at the end */ + strscpy(alt_path, path, BRCMF_FW_NAME_LEN); + alt_path[suffix - path] = 0; - 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 0; } @@ -637,11 +648,10 @@ static int brcmf_fw_request_firmware(const struct firmware **fw, unsigned int i; /* Files can be board-specific, first try a board-specific path */ - if (fwctx->req->board_type) { + if (fwctx->req->board_types[0]) { const char *alt_paths[BRCMF_FW_MAX_ALT_PATHS]; - if (brcm_alt_fw_paths(cur->path, fwctx->req->board_type, - alt_paths) != 0) + if (brcm_alt_fw_paths(cur->path, fwctx, alt_paths) != 0) goto fallback; for (i = 0; i < BRCMF_FW_MAX_ALT_PATHS && alt_paths[i]; i++) { @@ -750,8 +760,7 @@ int brcmf_fw_get_firmwares(struct device *dev, struct brcmf_fw_request *req, fwctx->done = fw_cb; /* First try alternative board-specific path if any */ - if (brcm_alt_fw_paths(first->path, req->board_type, - fwctx->alt_paths) == 0) { + if (brcm_alt_fw_paths(first->path, fwctx, fwctx->alt_paths) == 0) { fwctx->alt_index = 0; ret = request_firmware_nowait(THIS_MODULE, true, fwctx->alt_paths[0], diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.h index 7f4e6e359c82..3b60a0e290b0 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.h +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.h @@ -68,7 +68,7 @@ struct brcmf_fw_request { u16 domain_nr; u16 bus_nr; u32 n_items; - const char *board_type; + const char *board_types[BRCMF_FW_MAX_ALT_PATHS]; struct brcmf_fw_item items[]; }; diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c index 591f870d1e47..a52a6f8081eb 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c @@ -1877,11 +1877,13 @@ 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[0] = devinfo->settings->board_type; + return fwreq; } diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c index 7466e6fd6eca..ed944764f6ea 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c @@ -4432,7 +4432,7 @@ 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[0] = bus->sdiodev->settings->board_type; return fwreq; }