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_) \ 27 do { \ 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 38 struct aq_hw_s; 39 40 void aq_hw_write_reg_bit(struct aq_hw_s *aq_hw, u32 addr, u32 msk, 41 u32 shift, u32 val); 42 u32 aq_hw_read_reg_bit(struct aq_hw_s *aq_hw, u32 addr, u32 msk, u32 shift); 43 u32 aq_hw_read_reg(struct aq_hw_s *hw, u32 reg); 44 void aq_hw_write_reg(struct aq_hw_s *hw, u32 reg, u32 value); 45 int aq_hw_err_from_flags(struct aq_hw_s *hw); 46 47 #endif /* AQ_HW_UTILS_H */ 48