// SPDX-License-Identifier: GPL-2.0 /* * Copyright (c) 2013-2023, Intel Corporation. All rights reserved. * Intel Management Engine Interface (Intel MEI) Linux driver */ #include <linux/kernel.h> #include <linux/sched.h> #include <linux/module.h> #include <linux/device.h> #include <linux/slab.h> #include <linux/mei.h> #include <linux/mei_cl_bus.h> #include "mei_dev.h" #include "client.h" #include "mkhi.h" #define MEI_UUID_NFC_INFO … static const uuid_le mei_nfc_info_guid = …; #define MEI_UUID_NFC_HCI … #define MEI_UUID_WD … #define MEI_UUID_MKHIF_FIX … #define MEI_UUID_IGSC_MKHI … #define MEI_UUID_IGSC_MKHI_FIX … #define MEI_UUID_HDCP … #define MEI_UUID_PAVP … #define MEI_UUID_ANY … /** * number_of_connections - determine whether an client be on the bus * according number of connections * We support only clients: * 1. with single connection * 2. and fixed clients (max_number_of_connections == 0) * * @cldev: me clients device */ static void number_of_connections(struct mei_cl_device *cldev) { … } /** * blacklist - blacklist a client from the bus * * @cldev: me clients device */ static void blacklist(struct mei_cl_device *cldev) { … } /** * whitelist - forcefully whitelist client * * @cldev: me clients device */ static void whitelist(struct mei_cl_device *cldev) { … } #define MKHI_SEND_MAX_TIMEOUT_MSEC … #define OSTYPE_LINUX … struct mei_os_ver { … } __packed; struct mkhi_fw_ver_block { … } __packed; struct mkhi_fw_ver { … } __packed; #define MKHI_OSVER_BUF_LEN … static int mei_osver(struct mei_cl_device *cldev) { … } #define MKHI_FWVER_BUF_LEN … #define MKHI_FWVER_LEN(__num) … static int mei_fwver(struct mei_cl_device *cldev) { … } #define GFX_MEMORY_READY_TIMEOUT … static int mei_gfx_memory_ready(struct mei_cl_device *cldev) { … } static void mei_mkhi_fix(struct mei_cl_device *cldev) { … } static void mei_gsc_mkhi_ver(struct mei_cl_device *cldev) { … } static void mei_gsc_mkhi_fix_ver(struct mei_cl_device *cldev) { … } /** * mei_wd - wd client on the bus, change protocol version * as the API has changed. * * @cldev: me clients device */ #if IS_ENABLED(CONFIG_INTEL_MEI_ME) #include <linux/pci.h> #include "hw-me-regs.h" static void mei_wd(struct mei_cl_device *cldev) { … } #else static inline void mei_wd(struct mei_cl_device *cldev) {} #endif /* CONFIG_INTEL_MEI_ME */ struct mei_nfc_cmd { … } __packed; struct mei_nfc_reply { … } __packed; struct mei_nfc_if_version { … } __packed; #define MEI_NFC_CMD_MAINTENANCE … #define MEI_NFC_SUBCMD_IF_VERSION … /* Vendors */ #define MEI_NFC_VENDOR_INSIDE … #define MEI_NFC_VENDOR_NXP … /* Radio types */ #define MEI_NFC_VENDOR_INSIDE_UREAD … #define MEI_NFC_VENDOR_NXP_PN544 … /** * mei_nfc_if_version - get NFC interface version * * @cl: host client (nfc info) * @ver: NFC interface version to be filled in * * Return: 0 on success; < 0 otherwise */ static int mei_nfc_if_version(struct mei_cl *cl, struct mei_nfc_if_version *ver) { … } /** * mei_nfc_radio_name - derive nfc radio name from the interface version * * @ver: NFC radio version * * Return: radio name string */ static const char *mei_nfc_radio_name(struct mei_nfc_if_version *ver) { … } /** * mei_nfc - The nfc fixup function. The function retrieves nfc radio * name and set is as device attribute so we can load * the proper device driver for it * * @cldev: me client device (nfc) */ static void mei_nfc(struct mei_cl_device *cldev) { … } /** * vt_support - enable on bus clients with vtag support * * @cldev: me clients device */ static void vt_support(struct mei_cl_device *cldev) { … } /** * pxp_is_ready - enable bus client if pxp is ready * * @cldev: me clients device */ static void pxp_is_ready(struct mei_cl_device *cldev) { … } #define MEI_FIXUP(_uuid, _hook) … static struct mei_fixup { … } mei_fixups[] = …; /** * mei_cl_bus_dev_fixup - run fixup handlers * * @cldev: me client device */ void mei_cl_bus_dev_fixup(struct mei_cl_device *cldev) { … }
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