c74dae927a
Done with sed and God Lines. Only done for C-like code for now. Change-Id: Id5fe26564147ec532850430ea55b19ee94d5c5a5 Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/40050 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
43 lines
1.1 KiB
C
43 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/* This file is part of the coreboot project. */
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#include <assert.h>
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#include <device/mmio.h>
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/* Helper functions for various MMIO access patterns. */
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void buffer_from_fifo32(void *buffer, size_t size, void *fifo,
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int fifo_stride, int fifo_width)
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{
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u8 *p = buffer;
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int i, j;
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assert(fifo_width > 0 && fifo_width <= sizeof(u32) &&
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fifo_stride % sizeof(u32) == 0);
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for (i = 0; i < size; i += fifo_width, fifo += fifo_stride) {
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u32 val = read32(fifo);
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for (j = 0; j < MIN(size - i, fifo_width); j++)
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*p++ = (u8)(val >> (j * 8));
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}
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}
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void buffer_to_fifo32_prefix(void *buffer, u32 prefix, int prefsz, size_t size,
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void *fifo, int fifo_stride, int fifo_width)
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{
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u8 *p = buffer;
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int i, j = prefsz;
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assert(fifo_width > 0 && fifo_width <= sizeof(u32) &&
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fifo_stride % sizeof(u32) == 0 && prefsz <= fifo_width);
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uint32_t val = prefix;
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for (i = 0; i < size; i += fifo_width, fifo += fifo_stride) {
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for (; j < MIN(size - i, fifo_width); j++)
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val |= *p++ << (j * 8);
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write32(fifo, val);
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val = 0;
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j = 0;
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}
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}
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