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  */
  35 struct 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  */
  58 struct 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
  68 extern const struct mei_cfg mei_me_legacy_cfg;
  69 extern const struct mei_cfg mei_me_ich_cfg;
  70 extern const struct mei_cfg mei_me_pch_cfg;
  71 extern const struct mei_cfg mei_me_pch_cpt_pbg_cfg;
  72 extern const struct mei_cfg mei_me_pch8_cfg;
  73 extern const struct mei_cfg mei_me_pch8_sps_cfg;
  74
  75 struct mei_device *mei_me_dev_init(struct pci_dev *pdev,
  76                                    const struct mei_cfg *cfg);
  77
  78 int mei_me_pg_enter_sync(struct mei_device *dev);
  79 int mei_me_pg_exit_sync(struct mei_device *dev);
  80
  81 irqreturn_t mei_me_irq_quick_handler(int irq, void *dev_id);
  82 irqreturn_t mei_me_irq_thread_handler(int irq, void *dev_id);
  83
  84 #endif /* _MEI_INTERFACE_H_ */