cc334c7273
Convert code to use u{8,16,32,64}_t and s{8,16,32,64}_t instead of C99
integer types. This handles the remaining includes and kernel, plus
touching up various points that we skipped because of include
dependancies. We also convert the PRI printf formatters in the arch
code over to normal formatters.
Jira: ZEP-2051
Change-Id: Iecbb12601a3ee4ea936fd7ddea37788a645b08b0
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
113 lines
2.3 KiB
C
113 lines
2.3 KiB
C
/*
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* Copyright (c) 2016 Cadence Design Systems, Inc.
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef XTENSA_SYS_IO_H
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#define XTENSA_SYS_IO_H
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#if !defined(_ASMLANGUAGE)
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#include <sys_io.h>
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/* Memory mapped registers I/O functions */
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static ALWAYS_INLINE u32_t sys_read32(mem_addr_t addr)
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{
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return *(volatile u32_t *)addr;
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}
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static ALWAYS_INLINE void sys_write32(u32_t data, mem_addr_t addr)
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{
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*(volatile u32_t *)addr = data;
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}
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/* Memory bit manipulation functions */
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static ALWAYS_INLINE void sys_set_bit(mem_addr_t addr, unsigned int bit)
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{
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u32_t temp = *(volatile u32_t *)addr;
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*(volatile u32_t *)addr = temp | (1 << bit);
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}
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static ALWAYS_INLINE void sys_clear_bit(mem_addr_t addr, unsigned int bit)
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{
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u32_t temp = *(volatile u32_t *)addr;
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*(volatile u32_t *)addr = temp & ~(1 << bit);
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}
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static ALWAYS_INLINE int sys_test_bit(mem_addr_t addr, unsigned int bit)
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{
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int temp = *(volatile int *)addr;
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return (int)(temp & (1 << bit));
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}
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static ALWAYS_INLINE int sys_test_and_set_bit(mem_addr_t addr, unsigned int bit)
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{
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int retval = (*(volatile int *)addr) & (1 << bit);
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*(volatile int *)addr = (*(volatile int *)addr) | (1 << bit);
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return retval;
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}
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static ALWAYS_INLINE
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int sys_test_and_clear_bit(mem_addr_t addr, unsigned int bit)
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{
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int retval = (*(volatile int *)addr) & (1 << bit);
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*(volatile int *)addr = (*(volatile int *)addr) & ~(1 << bit);
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return retval;
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}
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static ALWAYS_INLINE
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void sys_bitfield_set_bit(mem_addr_t addr, unsigned int bit)
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{
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/* Doing memory offsets in terms of 32-bit values to prevent
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* alignment issues
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*/
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sys_set_bit(addr + ((bit >> 5) << 2), bit & 0x1F);
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}
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static ALWAYS_INLINE
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void sys_bitfield_clear_bit(mem_addr_t addr, unsigned int bit)
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{
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sys_clear_bit(addr + ((bit >> 5) << 2), bit & 0x1F);
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}
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static ALWAYS_INLINE
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int sys_bitfield_test_bit(mem_addr_t addr, unsigned int bit)
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{
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return sys_test_bit(addr + ((bit >> 5) << 2), bit & 0x1F);
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}
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static ALWAYS_INLINE
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int sys_bitfield_test_and_set_bit(mem_addr_t addr, unsigned int bit)
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{
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int ret;
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ret = sys_bitfield_test_bit(addr, bit);
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sys_bitfield_set_bit(addr, bit);
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return ret;
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}
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static ALWAYS_INLINE
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int sys_bitfield_test_and_clear_bit(mem_addr_t addr, unsigned int bit)
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{
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int ret;
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ret = sys_bitfield_test_bit(addr, bit);
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sys_bitfield_clear_bit(addr, bit);
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return ret;
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}
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#endif /* !_ASMLANGUAGE */
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#endif /* XTENSA_SYS_IO_H */
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