LXR linux/drivers/misc/mei/hw-me.h

   1/*
   2 *
   3 * Intel Management Engine Interface (Intel MEI) Linux driver
   4 * Copyright (c) 2003-2012, Intel Corporation.
   5 *
   6 * This program is free software; you can redistribute it and/or modify it
   7 * under the terms and conditions of the GNU General Public License,
   8 * version 2, as published by the Free Software Foundation.
   9 *
  10 * This program is distributed in the hope it will be useful, but WITHOUT
  11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13 * more details.
  14 *
  15 */
  16
  17
  18
  19#ifndef _MEI_INTERFACE_H_
  20#define _MEI_INTERFACE_H_
  21
  22#include <linux/irqreturn.h>
  23#include <linux/pci.h>
  24#include <linux/mei.h>
  25
  26#include "mei_dev.h"
  27#include "client.h"
  28
  29/*
  30 * mei_cfg - mei device configuration
  31 *
  32 * @fw_status: FW status
  33 * @quirk_probe: device exclusion quirk
  34 */
  35struct mei_cfg {
  36        const struct mei_fw_status fw_status;
  37        bool (*quirk_probe)(struct pci_dev *pdev);
  38};
  39
  40
  41#define MEI_PCI_DEVICE(dev, cfg) \
  42        .vendor = PCI_VENDOR_ID_INTEL, .device = (dev), \
  43        .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID, \
  44        .driver_data = (kernel_ulong_t)&(cfg)
  45
  46
  47#define MEI_ME_RPM_TIMEOUT    500 /* ms */
  48
  49/**
  50 * struct mei_me_hw - me hw specific data
  51 *
  52 * @cfg: per device generation config and ops
  53 * @mem_addr: io memory address
  54 * @intr_source: interrupt source
  55 * @pg_state: power gating state
  56 * @d0i3_supported: di03 support
  57 */
  58struct mei_me_hw {
  59        const struct mei_cfg *cfg;
  60        void __iomem *mem_addr;
  61        u32 intr_source;
  62        enum mei_pg_state pg_state;
  63        bool d0i3_supported;
  64};
  65
  66#define to_me_hw(dev) (struct mei_me_hw *)((dev)->hw)
  67
  68extern const struct mei_cfg mei_me_legacy_cfg;
  69extern const struct mei_cfg mei_me_ich_cfg;
  70extern const struct mei_cfg mei_me_pch_cfg;
  71extern const struct mei_cfg mei_me_pch_cpt_pbg_cfg;
  72extern const struct mei_cfg mei_me_pch8_cfg;
  73extern const struct mei_cfg mei_me_pch8_sps_cfg;
  74
  75struct mei_device *mei_me_dev_init(struct pci_dev *pdev,
  76                                   const struct mei_cfg *cfg);
  77
  78int mei_me_pg_enter_sync(struct mei_device *dev);
  79int mei_me_pg_exit_sync(struct mei_device *dev);
  80
  81irqreturn_t mei_me_irq_quick_handler(int irq, void *dev_id);
  82irqreturn_t mei_me_irq_thread_handler(int irq, void *dev_id);
  83
  84#endif /* _MEI_INTERFACE_H_ */
  85