From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Wed, 23 Jun 2021 07:19:27 +0200 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by lore.white.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1lvvIN-0005Jw-UU for lore@lore.pengutronix.de; Wed, 23 Jun 2021 07:19:27 +0200 Received: from bombadil.infradead.org ([2607:7c80:54:e::133]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1lvvIM-0007uV-1T for lore@pengutronix.de; Wed, 23 Jun 2021 07:19:27 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Cc:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=QQR+Crmtn4nRj26OqaHJ5gyJn6JPvhOmoICyJlub+DY=; b=dZONTpkkSwgcnO 9LFZy+GWjyQoDobb/8vW2R5KXjnEN5+hhykZUGxR4Y4h54f95h9KmyH9aR418LAB8nHbAIUjJ5GDu 021x+i0kI3S2M5KmtbT3EkD+JmZcltoA5CeUVEypa076wy1Mrmc9lpuONBYvUTRuIr2FwwP2xzUTM 925R6aOJAaRH7hcH7YqfQ+2M13WnRYJIXT3xGJ3EY26TukT4JREa5/vXtxjMc1N+farDP4W3MHuEQ GrvtjrjFW3TaE3LS1u5wqFvPEhk1eKKmEI6yNkF0QGPxvL+BISNMg7cew8akEZeMNle33Ayci3xlr Xn2zloCiDLXHZF5sj6CA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1lvvGz-009NGA-Pf; Wed, 23 Jun 2021 05:18:01 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1lvvFl-009MUL-Cl for barebox@lists.infradead.org; Wed, 23 Jun 2021 05:16:48 +0000 Received: from dude02.hi.pengutronix.de ([2001:67c:670:100:1d::28]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1lvvFc-0006rG-1Z; Wed, 23 Jun 2021 07:16:36 +0200 Received: from sha by dude02.hi.pengutronix.de with local (Exim 4.92) (envelope-from ) id 1lvvFa-0000Rh-SS; Wed, 23 Jun 2021 07:16:34 +0200 From: Sascha Hauer To: Barebox List Date: Wed, 23 Jun 2021 07:16:20 +0200 Message-Id: <20210623051632.30253-6-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210623051632.30253-1-s.hauer@pengutronix.de> References: <20210623051632.30253-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210622_221645_631199_77F57862 X-CRM114-Status: GOOD ( 15.49 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:e::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.ext.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-4.8 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH 05/17] firmware: Add search path X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.ext.pengutronix.de) This adds a colon separated search path for firmware files. When the firmware we are searching is not an absolute path then look in the search path first. This will be useful later when the bootloader spec implementation shall look for firmware files relative to the provided root. Signed-off-by: Sascha Hauer --- common/firmware.c | 41 +++++++++++++++++++++++++++++++++++++++++ include/firmware.h | 12 ++++++++++++ 2 files changed, 53 insertions(+) diff --git a/common/firmware.c b/common/firmware.c index fa4f585693..477dc1f13a 100644 --- a/common/firmware.c +++ b/common/firmware.c @@ -11,6 +11,8 @@ #include #include #include +#include +#include #include #include #include @@ -208,6 +210,26 @@ out: return ret; } +static char *firmware_path; + +const char *firmware_get_searchpath(void) +{ + return firmware_path; +} + +void firmware_set_searchpath(const char *path) +{ + free(firmware_path); + firmware_path = strdup(path); +} + +static bool file_exists(const char *filename) +{ + struct stat s; + + return !stat(filename, &s); +} + /* * firmware_load_file - load a firmware to a device */ @@ -216,6 +238,7 @@ int firmwaremgr_load_file(struct firmware_mgr *mgr, const char *firmware) char *dst; enum filetype type; int ret = 0; + char *fw = NULL; int firmwarefd = 0; int devicefd = 0; @@ -229,6 +252,12 @@ int firmwaremgr_load_file(struct firmware_mgr *mgr, const char *firmware) dst = basprintf("/dev/%s", mgr->handler->id); + if (*firmware != '/') { + fw = find_path(firmware_path, firmware, file_exists); + if (fw) + firmware = fw; + } + firmwarefd = open(firmware, O_RDONLY); if (firmwarefd < 0) { printf("could not open %s: %s\n", firmware, @@ -254,6 +283,7 @@ int firmwaremgr_load_file(struct firmware_mgr *mgr, const char *firmware) out: free(dst); + free(fw); if (firmwarefd > 0) close(firmwarefd); @@ -262,3 +292,14 @@ out: return ret; } + +static int firmware_init(void) +{ + firmware_path = strdup("/env/firmware"); + globalvar_add_simple_string("firmware.path", &firmware_path); + + return 0; +} +device_initcall(firmware_init); + +BAREBOX_MAGICVAR(global.firmware.path, "Firmware search path"); diff --git a/include/firmware.h b/include/firmware.h index 39e84b9ac7..515bdcaf40 100644 --- a/include/firmware.h +++ b/include/firmware.h @@ -30,6 +30,8 @@ struct firmware_mgr *firmwaremgr_find(const char *); #ifdef CONFIG_FIRMWARE struct firmware_mgr *firmwaremgr_find_by_node(struct device_node *np); int firmwaremgr_load_file(struct firmware_mgr *, const char *path); +const char *firmware_get_searchpath(void); +void firmware_set_searchpath(const char *path); #else static inline struct firmware_mgr *firmwaremgr_find_by_node(struct device_node *np) { @@ -40,6 +42,16 @@ static inline int firmwaremgr_load_file(struct firmware_mgr *mgr, const char *pa { return -ENOSYS; } + +static inline const char *firmware_get_searchpath(void) +{ + return NULL; +} + +static inline void firmware_set_searchpath(const char *path) +{ +} + #endif void firmwaremgr_list_handlers(void); -- 2.29.2 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox