diff options
Diffstat (limited to 'drivers/net/ethernet/aquantia/atlantic/aq_hw_utils.h')
| -rw-r--r-- | drivers/net/ethernet/aquantia/atlantic/aq_hw_utils.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_hw_utils.h b/drivers/net/ethernet/aquantia/atlantic/aq_hw_utils.h new file mode 100644 index 000000000000..03b72ddbffb9 --- /dev/null +++ b/drivers/net/ethernet/aquantia/atlantic/aq_hw_utils.h @@ -0,0 +1,47 @@ +/* + * aQuantia Corporation Network Driver + * Copyright (C) 2014-2017 aQuantia Corporation. All rights reserved + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + */ + +/* File aq_hw_utils.h: Declaration of helper functions used across hardware + * layer. + */ + +#ifndef AQ_HW_UTILS_H +#define AQ_HW_UTILS_H + +#include "aq_common.h" + +#ifndef HIDWORD +#define LODWORD(_qw) ((u32)(_qw)) +#define HIDWORD(_qw) ((u32)(((_qw) >> 32) & 0xffffffff)) +#endif + +#define AQ_HW_SLEEP(_US_) mdelay(_US_) + +#define AQ_HW_WAIT_FOR(_B_, _US_, _N_) \ +do { \ + unsigned int AQ_HW_WAIT_FOR_i; \ + for (AQ_HW_WAIT_FOR_i = _N_; (!(_B_)) && (AQ_HW_WAIT_FOR_i);\ + --AQ_HW_WAIT_FOR_i) {\ + udelay(_US_); \ + } \ + if (!AQ_HW_WAIT_FOR_i) {\ + err = -ETIME; \ + } \ +} while (0) + +struct aq_hw_s; + +void aq_hw_write_reg_bit(struct aq_hw_s *aq_hw, u32 addr, u32 msk, + u32 shift, u32 val); +u32 aq_hw_read_reg_bit(struct aq_hw_s *aq_hw, u32 addr, u32 msk, u32 shift); +u32 aq_hw_read_reg(struct aq_hw_s *hw, u32 reg); +void aq_hw_write_reg(struct aq_hw_s *hw, u32 reg, u32 value); +int aq_hw_err_from_flags(struct aq_hw_s *hw); + +#endif /* AQ_HW_UTILS_H */ |