From patchwork Thu Aug 15 02:10:01 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhang Lixu X-Patchwork-Id: 819590 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F3CF3BA20 for ; Thu, 15 Aug 2024 02:10:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.19 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723687818; cv=none; b=UmDRszKxdZUXkkbWnktL3CV7BaiOZqdHKLSbxalpmWeNlF8gRQoEA2id1lb2kJQKITr9drFrgKbr5i5wY1/HRzoa8wyieOwUsJXpjVFwE5z2ABcsVA+rMSkGGKO0HYAbcrg2rwp3kQ13glnyUNh2VPqXC2hb0sOL986bdpmjLHE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723687818; c=relaxed/simple; bh=qy6rFW2Ca7IeP9dj5MULCx0bT5yDxg5gpzSH1XS5jNo=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=h7VYggo9GmGh0xmkY0Y8ahQ7wPnRZ8Fp/0aK5g0quGdZh556P5PV7HFG+PgxoOcH7obR2tQzQdIeftsnhQvNEl1aIYzOv9/9Cg9xDYpyfU0n1/A1qBlse6Eb/D1/jCqn5plaVCJT+yNBYa12qhjhXfm6qcY9Z+e5K9CWs7dbfCA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=O57W7cQc; arc=none smtp.client-ip=198.175.65.19 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="O57W7cQc" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1723687817; x=1755223817; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=qy6rFW2Ca7IeP9dj5MULCx0bT5yDxg5gpzSH1XS5jNo=; b=O57W7cQcZ8bXypYW79wMb5VgDf0/U3olt1pmaXfQ7iS9MKhNEDkQ0wcu Xon/lZZirpTzNZNhEmlo/goZ9ap9J5XPPhAVDgITsXcnUzFLMrUonNhR9 lRkvJPFLfjQC6joP/qZd+Jbul0CLkg2bjt6SgUjPkDSF4oTqP2aJRKcGK YP18YXsumK2k82hHpZwXJc2XbiomDduwRDZV/fT/4amqxIL353DFSwbqj S2KLASbUe75yoiIzsTOXOCr6XdLzJViMCJ3X32UMFD9ZGey9MUaGkTFYM m+Qj6YYMTVLrfy8k5bPTniuUDp6vAv1f4V7QRj2V83H/KgeQvse9iqUZH Q==; X-CSE-ConnectionGUID: txOaXGqoS3KtWolFzuq7bg== X-CSE-MsgGUID: 4HjgE24CS2G/Yz9PRz0Zvg== X-IronPort-AV: E=McAfee;i="6700,10204,11164"; a="21796133" X-IronPort-AV: E=Sophos;i="6.10,147,1719903600"; d="scan'208";a="21796133" Received: from fmviesa005.fm.intel.com ([10.60.135.145]) by orvoesa111.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Aug 2024 19:10:14 -0700 X-CSE-ConnectionGUID: tP7paeRbQymVObfduXp++A== X-CSE-MsgGUID: D1tukIZyR9KMK5nGborGIw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.10,147,1719903600"; d="scan'208";a="63635503" Received: from ipg-l-lixuzha.sh.intel.com ([10.239.153.157]) by fmviesa005.fm.intel.com with ESMTP; 14 Aug 2024 19:10:11 -0700 From: Zhang Lixu To: linux-input@vger.kernel.org, srinivas.pandruvada@linux.intel.com, jikos@kernel.org, benjamin.tissoires@redhat.com Cc: lixu.zhang@intel.com, hemin.han@intel.com, yoshi.wang@intel.com, even.xu@intel.com, ilpo.jarvinen@linux.intel.com Subject: [PATCH v2 3/3] hid: intel-ish-hid: Add support for vendor customized firmware loading Date: Thu, 15 Aug 2024 10:10:01 +0800 Message-Id: <20240815021001.936277-4-lixu.zhang@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240815021001.936277-1-lixu.zhang@intel.com> References: <20240815021001.936277-1-lixu.zhang@intel.com> Precedence: bulk X-Mailing-List: linux-input@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Enhance the firmware loader to support the loading of vendor-specific customized firmware for the Intel Integrated Sensor Hub (ISH). The loader now constructs firmware file names based on the DMI_SYS_VENDOR, DMI_PRODUCT_NAME, and DMI_PRODUCT_SKU information in Desktop Management Interface (DMI). The loader will attempt to load the firmware files following a specific naming convention in sequence. If successful, it will skip the remaining files. For more details, please refer to Documentation/hid/intel-ish-hid.rst. Signed-off-by: Zhang Lixu Acked-by: Srinivas Pandruvada --- drivers/hid/intel-ish-hid/ipc/pci-ish.c | 2 + drivers/hid/intel-ish-hid/ishtp/loader.c | 104 ++++++++++++++++++++++- 2 files changed, 103 insertions(+), 3 deletions(-) diff --git a/drivers/hid/intel-ish-hid/ipc/pci-ish.c b/drivers/hid/intel-ish-hid/ipc/pci-ish.c index f20463082dc4..aae0d965b47b 100644 --- a/drivers/hid/intel-ish-hid/ipc/pci-ish.c +++ b/drivers/hid/intel-ish-hid/ipc/pci-ish.c @@ -31,6 +31,7 @@ enum ishtp_driver_data_index { #define ISH_FW_GEN_LNL_M "lnlm" #define ISH_FIRMWARE_PATH(gen) "intel/ish/ish_" gen ".bin" +#define ISH_FIRMWARE_PATH_ALL "intel/ish/ish_*.bin" static struct ishtp_driver_data ishtp_driver_data[] = { [ISHTP_DRIVER_DATA_LNL_M] = { @@ -400,3 +401,4 @@ MODULE_DESCRIPTION("Intel(R) Integrated Sensor Hub PCI Device Driver"); MODULE_LICENSE("GPL"); MODULE_FIRMWARE(ISH_FIRMWARE_PATH(ISH_FW_GEN_LNL_M)); +MODULE_FIRMWARE(ISH_FIRMWARE_PATH_ALL); diff --git a/drivers/hid/intel-ish-hid/ishtp/loader.c b/drivers/hid/intel-ish-hid/ishtp/loader.c index ff11ee4e38ed..f76c4437a1f5 100644 --- a/drivers/hid/intel-ish-hid/ishtp/loader.c +++ b/drivers/hid/intel-ish-hid/ishtp/loader.c @@ -35,8 +35,10 @@ #include #include +#include #include #include +#include #include #include #include @@ -193,21 +195,117 @@ static int prepare_dma_bufs(struct ishtp_device *dev, return 0; } +#define ISH_FW_FILE_VENDOR_NAME_SKU_FMT "intel/ish/ish_%s_%08x_%08x_%08x.bin" +#define ISH_FW_FILE_VENDOR_SKU_FMT "intel/ish/ish_%s_%08x_%08x.bin" +#define ISH_FW_FILE_VENDOR_NAME_FMT "intel/ish/ish_%s_%08x_%08x.bin" +#define ISH_FW_FILE_VENDOR_FMT "intel/ish/ish_%s_%08x.bin" #define ISH_FW_FILE_DEFAULT_FMT "intel/ish/ish_%s.bin" #define ISH_FW_FILENAME_LEN_MAX 56 +#define ISH_CRC_INIT (~0u) +#define ISH_CRC_XOROUT (~0u) + +static int _request_ish_firmware(const struct firmware **firmware_p, + const char *name, struct device *dev) +{ + int ret; + + dev_dbg(dev, "Try to load firmware: %s\n", name); + ret = firmware_request_nowarn(firmware_p, name, dev); + if (!ret) + dev_info(dev, "load firmware: %s\n", name); + + return ret; +} + +/** + * request_ish_firmware() - Request and load the ISH firmware. + * @firmware_p: Pointer to the firmware image. + * @dev: Device for which firmware is being requested. + * + * This function attempts to load the Integrated Sensor Hub (ISH) firmware + * for the given device in the following order, prioritizing custom firmware + * with more precise matching patterns: + * + * ish_${fw_generation}_${SYS_VENDOR_CRC32}_$(PRODUCT_NAME_CRC32)_${PRODUCT_SKU_CRC32}.bin + * ish_${fw_generation}_${SYS_VENDOR_CRC32}_${PRODUCT_SKU_CRC32}.bin + * ish_${fw_generation}_${SYS_VENDOR_CRC32}_$(PRODUCT_NAME_CRC32).bin + * ish_${fw_generation}_${SYS_VENDOR_CRC32}.bin + * ish_${fw_generation}.bin + * + * The driver will load the first matching firmware and skip the rest. If no + * matching firmware is found, it will proceed to the next pattern in the + * specified order. If all searches fail, the default Intel firmware, listed + * last in the order above, will be loaded. + * + * The firmware file name is constructed using CRC32 checksums of strings. + * This is done to create a valid file name that does not contain spaces + * or special characters which may be present in the original strings. + * + * The CRC-32 algorithm uses the following parameters: + * Poly: 0x04C11DB7 + * Init: 0xFFFFFFFF + * RefIn: true + * RefOut: true + * XorOut: 0xFFFFFFFF + * + * Return: 0 on success, negative error code on failure. + */ static int request_ish_firmware(const struct firmware **firmware_p, struct device *dev) { + const char *gen, *sys_vendor, *product_name, *product_sku; struct ishtp_device *ishtp = dev_get_drvdata(dev); - const char *gen; + u32 vendor_crc, name_crc, sku_crc; char filename[ISH_FW_FILENAME_LEN_MAX]; + int ret; gen = ishtp->driver_data->fw_generation; - snprintf(filename, sizeof(filename), ISH_FW_FILE_DEFAULT_FMT, gen); + sys_vendor = dmi_get_system_info(DMI_SYS_VENDOR); + product_name = dmi_get_system_info(DMI_PRODUCT_NAME); + product_sku = dmi_get_system_info(DMI_PRODUCT_SKU); + + if (sys_vendor) + vendor_crc = crc32(ISH_CRC_INIT, sys_vendor, strlen(sys_vendor)) ^ ISH_CRC_XOROUT; + if (product_name) + name_crc = crc32(ISH_CRC_INIT, product_name, strlen(product_name)) ^ ISH_CRC_XOROUT; + if (product_sku) + sku_crc = crc32(ISH_CRC_INIT, product_sku, strlen(product_sku)) ^ ISH_CRC_XOROUT; + + if (sys_vendor && product_name && product_sku) { + snprintf(filename, sizeof(filename), ISH_FW_FILE_VENDOR_NAME_SKU_FMT, gen, + vendor_crc, name_crc, sku_crc); + ret = _request_ish_firmware(firmware_p, filename, dev); + if (!ret) + return 0; + } + + if (sys_vendor && product_sku) { + snprintf(filename, sizeof(filename), ISH_FW_FILE_VENDOR_SKU_FMT, gen, vendor_crc, + sku_crc); + ret = _request_ish_firmware(firmware_p, filename, dev); + if (!ret) + return 0; + } - return request_firmware(firmware_p, filename, dev); + if (sys_vendor && product_name) { + snprintf(filename, sizeof(filename), ISH_FW_FILE_VENDOR_NAME_FMT, gen, vendor_crc, + name_crc); + ret = _request_ish_firmware(firmware_p, filename, dev); + if (!ret) + return 0; + } + + if (sys_vendor) { + snprintf(filename, sizeof(filename), ISH_FW_FILE_VENDOR_FMT, gen, vendor_crc); + ret = _request_ish_firmware(firmware_p, filename, dev); + if (!ret) + return 0; + } + + snprintf(filename, sizeof(filename), ISH_FW_FILE_DEFAULT_FMT, gen); + return _request_ish_firmware(firmware_p, filename, dev); } /**