drivers/hid/intel-ish-hid/ipc/hw-ish.h

   1 /*
   2  * H/W layer of ISHTP provider device (ISH)
   3  *
   4  * Copyright (c) 2014-2016, 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 #ifndef _ISHTP_HW_ISH_H_
  17 #define _ISHTP_HW_ISH_H_
  18
  19 #include <linux/pci.h>
  20 #include <linux/interrupt.h>
  21 #include "hw-ish-regs.h"
  22 #include "ishtp-dev.h"
  23
  24 #define CHV_DEVICE_ID           0x22D8
  25 #define BXT_Ax_DEVICE_ID        0x0AA2
  26 #define BXT_Bx_DEVICE_ID        0x1AA2
  27 #define APL_Ax_DEVICE_ID        0x5AA2
  28 #define SPT_Ax_DEVICE_ID        0x9D35
  29
  30 #define REVISION_ID_CHT_A0      0x6
  31 #define REVISION_ID_CHT_Ax_SI   0x0
  32 #define REVISION_ID_CHT_Bx_SI   0x10
  33 #define REVISION_ID_CHT_Kx_SI   0x20
  34 #define REVISION_ID_CHT_Dx_SI   0x30
  35 #define REVISION_ID_CHT_B0      0xB0
  36 #define REVISION_ID_SI_MASK     0x70
  37
  38 struct ipc_rst_payload_type {
  39         uint16_t        reset_id;
  40         uint16_t        reserved;
  41 };
  42
  43 struct time_sync_format {
  44         uint8_t ts1_source;
  45         uint8_t ts2_source;
  46         uint16_t reserved;
  47 } __packed;
  48
  49 struct ipc_time_update_msg {
  50         uint64_t primary_host_time;
  51         struct time_sync_format sync_info;
  52         uint64_t secondary_host_time;
  53 } __packed;
  54
  55 enum {
  56         HOST_UTC_TIME_USEC = 0,
  57         HOST_SYSTEM_TIME_USEC = 1
  58 };
  59
  60 struct ish_hw {
  61         void __iomem *mem_addr;
  62 };
  63
  64 #define to_ish_hw(dev) (struct ish_hw *)((dev)->hw)
  65
  66 irqreturn_t ish_irq_handler(int irq, void *dev_id);
  67 struct ishtp_device *ish_dev_init(struct pci_dev *pdev);
  68 int ish_hw_start(struct ishtp_device *dev);
  69 void ish_device_disable(struct ishtp_device *dev);
  70
  71 #endif /* _ISHTP_HW_ISH_H_ */