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108 lines
2.9 KiB
C
108 lines
2.9 KiB
C
/*
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* Copyright (c) 2022, Artinchip Technology Co., Ltd
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef __AIC_IO_H__
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#define __AIC_IO_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <io.h>
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#ifndef BIT
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#define BIT(s) (1U << (s))
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#define BIT_UL(s) (1UL << (s))
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#endif
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#define GENMASK(h, l) (((~(0U)) - ((1U) << (l)) + 1) & \
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(~(0U) >> (BITS_PER_LONG - 1 - (h))))
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#define GENMASK_UL(h, l) (((~(0UL)) - ((1UL) << (l)) + 1) & \
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(~(0UL) >> (BITS_PER_LONG - 1 - (h))))
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#define cpu_to_le32(val) (val)
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#define le32_to_cpu(val) (val)
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#define readb_cpu(c) ({ u8 __r = __raw_readb(c); __r; })
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#define readl_cpu(c) ({ u32 __r = le32_to_cpu(__raw_readl(c)); __r; })
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#define writeb_cpu(v, c) ((void)__raw_writeb((v), (c)))
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#define writel_cpu(v, c) ((void)__raw_writel((u32)cpu_to_le32(v), (c)))
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#define readb(c) \
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({ \
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u8 __v; \
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__io_br(); \
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__v = readb_cpu((volatile void *)c); \
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__io_ar(__v); __v; \
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})
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#define readl(c) \
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({ \
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u32 __v; \
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__io_br(); \
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__v = readl_cpu((volatile void *)c); \
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__io_ar(__v); \
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__v; \
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})
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#define writeb(v, c) \
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({ \
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__io_bw(); \
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writeb_cpu((v), (volatile void *)(c)); \
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__io_aw(); \
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})
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#define writel(v, c) \
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({ \
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__io_bw(); \
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writel_cpu((v), ((volatile void *)c)); \
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__io_aw(); \
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})
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/* Some common bit operation of a (long type) register */
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#define writel_clrbits(mask, addr) writel(readl(addr) & ~(mask), addr)
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#define writel_clrbit(bit, addr) writel_clrbits(bit, addr)
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#define writel_bits(val, mask, shift, addr) \
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({ \
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if (val) \
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writel((readl(addr) & ~(mask)) | ((val) << (shift)), addr); \
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else \
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writel_clrbits(mask, addr); \
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})
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#define writel_bit(bit, addr) writel(readl(addr) | bit, addr)
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#define readl_bits(mask, shift, addr) ((readl(addr) & (mask)) >> (shift))
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#define readl_bit(bit, addr) ((readl(addr) & bit) ? 1 : 0)
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/* Some common bit operation of a variable */
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#define clrbits(mask, cur) (cur &= ~(mask))
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#define clrbit(bit, cur) clrbits(bit, cur)
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#define setbits(val, mask, shift, cur) \
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({ \
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if (val) \
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(cur = (cur & ~(mask)) | ((val) << (shift))); \
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else \
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clrbits(mask, cur); \
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})
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#define setbit(bit, cur) (cur |= bit)
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#define getbits(mask, shift, cur) ((cur & (mask)) >> (shift))
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#define getbit(bit, cur) (cur & bit ? 1 : 0)
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#define bitrev8(x) \
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({ \
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u8 ___x = x; \
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___x = (___x >> 4) | (___x << 4); \
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___x = ((___x & (u8)0xCCU) >> 2) | ((___x & (u8)0x33U) << 2); \
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___x = ((___x & (u8)0xAAU) >> 1) | ((___x & (u8)0x55U) << 1); \
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___x; \
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})
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#ifdef __cplusplus
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}
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#endif
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#endif /* __AIC_IO_H__ */
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