/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (c) 2012-2022, Intel Corporation. All rights reserved. * Intel Management Engine Interface (Intel MEI) Linux driver */ #ifndef _MEI_INTERFACE_H_ #define _MEI_INTERFACE_H_ #include <linux/irqreturn.h> #include <linux/pci.h> #include <linux/mei.h> #include "mei_dev.h" #include "client.h" /* * mei_cfg - mei device configuration * * @fw_status: FW status * @quirk_probe: device exclusion quirk * @kind: MEI head kind * @dma_size: device DMA buffers size * @fw_ver_supported: is fw version retrievable from FW * @hw_trc_supported: does the hw support trc register */ struct mei_cfg { … }; #define MEI_PCI_DEVICE(dev, cfg) … #define MEI_ME_RPM_TIMEOUT … /** * struct mei_me_hw - me hw specific data * * @cfg: per device generation config and ops * @mem_addr: io memory address * @irq: irq number * @pg_state: power gating state * @d0i3_supported: di03 support * @hbuf_depth: depth of hardware host/write buffer in slots * @read_fws: read FW status register handler * @polling_thread: interrupt polling thread * @wait_active: the polling thread activity wait queue * @is_active: the device is active */ struct mei_me_hw { … }; #define to_me_hw(dev) … static inline bool mei_me_hw_use_polling(const struct mei_me_hw *hw) { … } /** * enum mei_cfg_idx - indices to platform specific configurations. * * Note: has to be synchronized with mei_cfg_list[] * * @MEI_ME_UNDEF_CFG: Lower sentinel. * @MEI_ME_ICH_CFG: I/O Controller Hub legacy devices. * @MEI_ME_ICH10_CFG: I/O Controller Hub platforms Gen10 * @MEI_ME_PCH6_CFG: Platform Controller Hub platforms (Gen6). * @MEI_ME_PCH7_CFG: Platform Controller Hub platforms (Gen7). * @MEI_ME_PCH_CPT_PBG_CFG:Platform Controller Hub workstations * with quirk for Node Manager exclusion. * @MEI_ME_PCH8_CFG: Platform Controller Hub Gen8 and newer * client platforms. * @MEI_ME_PCH8_ITOUCH_CFG:Platform Controller Hub Gen8 and newer * client platforms (iTouch). * @MEI_ME_PCH8_SPS_4_CFG: Platform Controller Hub Gen8 and newer * servers platforms with quirk for * SPS firmware exclusion. * @MEI_ME_PCH12_CFG: Platform Controller Hub Gen12 and newer * @MEI_ME_PCH12_SPS_4_CFG:Platform Controller Hub Gen12 up to 4.0 * servers platforms with quirk for * SPS firmware exclusion. * @MEI_ME_PCH12_SPS_CFG: Platform Controller Hub Gen12 5.0 and newer * servers platforms with quirk for * SPS firmware exclusion. * @MEI_ME_PCH12_SPS_ITOUCH_CFG: Platform Controller Hub Gen12 * client platforms (iTouch) * @MEI_ME_PCH15_CFG: Platform Controller Hub Gen15 and newer * @MEI_ME_PCH15_SPS_CFG: Platform Controller Hub Gen15 and newer * servers platforms with quirk for * SPS firmware exclusion. * @MEI_ME_GSC_CFG: Graphics System Controller * @MEI_ME_GSCFI_CFG: Graphics System Controller Firmware Interface * @MEI_ME_NUM_CFG: Upper Sentinel. */ enum mei_cfg_idx { … }; const struct mei_cfg *mei_me_get_cfg(kernel_ulong_t idx); struct mei_device *mei_me_dev_init(struct device *parent, const struct mei_cfg *cfg, bool slow_fw); int mei_me_pg_enter_sync(struct mei_device *dev); int mei_me_pg_exit_sync(struct mei_device *dev); irqreturn_t mei_me_irq_quick_handler(int irq, void *dev_id); irqreturn_t mei_me_irq_thread_handler(int irq, void *dev_id); int mei_me_polling_thread(void *_dev); #endif /* _MEI_INTERFACE_H_ */
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