LXR linux/drivers/net/ethernet/aquantia/atlantic/aq_hw

   1/*
   2 * aQuantia Corporation Network Driver
   3 * Copyright (C) 2014-2017 aQuantia Corporation. All rights reserved
   4 *
   5 * This program is free software; you can redistribute it and/or modify it
   6 * under the terms and conditions of the GNU General Public License,
   7 * version 2, as published by the Free Software Foundation.
   8 */
   9
  10/* File aq_hw_utils.h: Declaration of helper functions used across hardware
  11 * layer.
  12 */
  13
  14#ifndef AQ_HW_UTILS_H
  15#define AQ_HW_UTILS_H
  16
  17#include "aq_common.h"
  18
  19#ifndef HIDWORD
  20#define LODWORD(_qw)    ((u32)(_qw))
  21#define HIDWORD(_qw)    ((u32)(((_qw) >> 32) & 0xffffffff))
  22#endif
  23
  24#define AQ_HW_SLEEP(_US_) mdelay(_US_)
  25
  26#define AQ_HW_WAIT_FOR(_B_, _US_, _N_) \
  27do { \
  28        unsigned int AQ_HW_WAIT_FOR_i; \
  29        for (AQ_HW_WAIT_FOR_i = _N_; (!(_B_)) && (AQ_HW_WAIT_FOR_i);\
  30        --AQ_HW_WAIT_FOR_i) {\
  31                udelay(_US_); \
  32        } \
  33        if (!AQ_HW_WAIT_FOR_i) {\
  34                err = -ETIME; \
  35        } \
  36} while (0)
  37
  38struct aq_hw_s;
  39
  40void aq_hw_write_reg_bit(struct aq_hw_s *aq_hw, u32 addr, u32 msk,
  41                         u32 shift, u32 val);
  42u32 aq_hw_read_reg_bit(struct aq_hw_s *aq_hw, u32 addr, u32 msk, u32 shift);
  43u32 aq_hw_read_reg(struct aq_hw_s *hw, u32 reg);
  44void aq_hw_write_reg(struct aq_hw_s *hw, u32 reg, u32 value);
  45int aq_hw_err_from_flags(struct aq_hw_s *hw);
  46
  47#endif /* AQ_HW_UTILS_H */
  48