cab05c5302
Add implementation for hardware registers access routines. Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com> Signed-off-by: Pavel Belous <pavel.belous@aquantia.com>
54 lines
1.4 KiB
C
54 lines
1.4 KiB
C
/* SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0) */
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/* Copyright (C) 2014-2017 aQuantia Corporation. */
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/* File aq_hw_utils.h: Declaration of helper functions used across hardware
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* layer.
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*/
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#ifndef AQ_HW_UTILS_H
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#define AQ_HW_UTILS_H
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#include <rte_common.h>
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#include <rte_io.h>
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#include <rte_byteorder.h>
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#include <rte_random.h>
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#include <rte_cycles.h>
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#include "atl_common.h"
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#include "atl_types.h"
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#ifndef HIDWORD
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#define LODWORD(_qw) ((u32)(_qw))
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#define HIDWORD(_qw) ((u32)(((_qw) >> 32) & 0xffffffff))
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#endif
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#define AQ_HW_SLEEP(_US_) rte_delay_ms(_US_)
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#define mdelay rte_delay_ms
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#define udelay rte_delay_us
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#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
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#define BIT(x) (1UL << (x))
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#define AQ_HW_WAIT_FOR(_B_, _US_, _N_) \
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do { \
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unsigned int AQ_HW_WAIT_FOR_i; \
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for (AQ_HW_WAIT_FOR_i = _N_; (!(_B_)) && (AQ_HW_WAIT_FOR_i);\
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--AQ_HW_WAIT_FOR_i) {\
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udelay(_US_); \
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} \
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if (!AQ_HW_WAIT_FOR_i) {\
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err = -ETIMEDOUT; \
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} \
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} while (0)
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#define ATL_WRITE_FLUSH(aq_hw) { (void)aq_hw_read_reg(aq_hw, 0x10); }
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void aq_hw_write_reg_bit(struct aq_hw_s *aq_hw, u32 addr, u32 msk,
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u32 shift, u32 val);
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u32 aq_hw_read_reg_bit(struct aq_hw_s *aq_hw, u32 addr, u32 msk, u32 shift);
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u32 aq_hw_read_reg(struct aq_hw_s *hw, u32 reg);
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void aq_hw_write_reg(struct aq_hw_s *hw, u32 reg, u32 value);
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int aq_hw_err_from_flags(struct aq_hw_s *hw);
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#endif /* AQ_HW_UTILS_H */
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