+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
/***************************************************************************
* Copyright (C) 2004, 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
* Copyright (C) 2007,2008 Øyvind Harboe *
* oyvind.harboe@zylin.com *
- * *
- * This program is free software; you can redistribute it and/or modify *
- * it under the terms of the GNU General Public License as published by *
- * the Free Software Foundation; either version 2 of the License, or *
- * (at your option) any later version. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * GNU General Public License for more details. *
- * *
- * You should have received a copy of the GNU General Public License *
- * along with this program; if not, write to the *
- * Free Software Foundation, Inc., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
-#ifndef BINARYBUFFER_H
-#define BINARYBUFFER_H
+#ifndef OPENOCD_HELPER_BINARYBUFFER_H
+#define OPENOCD_HELPER_BINARYBUFFER_H
-#include <helper/types.h>
+#include "list.h"
/** @file
* Support functions to access arbitrary bits in a byte array
* using the bits in @c value. This routine fast-paths writes
* of little-endian, byte-aligned, 32-bit words.
* @param _buffer The buffer whose bits will be set.
+ * Do not use uninitialized buffer or clang static analyzer emits a warning.
* @param first The bit offset in @c _buffer to start writing (0-31).
* @param num The number of bits from @c value to copy (1-32).
* @param value Up to 32 bits that will be copied to _buffer.
*/
-static inline void buf_set_u32(void *_buffer,
+static inline void buf_set_u32(uint8_t *_buffer,
unsigned first, unsigned num, uint32_t value)
{
- uint8_t *buffer = (uint8_t *)_buffer;
+ uint8_t *buffer = _buffer;
+
+ if ((num == 32) && (first == 0)) {
+ buffer[3] = (value >> 24) & 0xff;
+ buffer[2] = (value >> 16) & 0xff;
+ buffer[1] = (value >> 8) & 0xff;
+ buffer[0] = (value >> 0) & 0xff;
+ } else {
+ for (unsigned i = first; i < first + num; i++) {
+ if (((value >> (i - first)) & 1) == 1)
+ buffer[i / 8] |= 1 << (i % 8);
+ else
+ buffer[i / 8] &= ~(1 << (i % 8));
+ }
+ }
+}
+
+/**
+ * Sets @c num bits in @c _buffer, starting at the @c first bit,
+ * using the bits in @c value. This routine fast-paths writes
+ * of little-endian, byte-aligned, 64-bit words.
+ * @param _buffer The buffer whose bits will be set.
+ * Do not use uninitialized buffer or clang static analyzer emits a warning.
+ * @param first The bit offset in @c _buffer to start writing (0-63).
+ * @param num The number of bits from @c value to copy (1-64).
+ * @param value Up to 64 bits that will be copied to _buffer.
+ */
+static inline void buf_set_u64(uint8_t *_buffer,
+ unsigned first, unsigned num, uint64_t value)
+{
+ uint8_t *buffer = _buffer;
if ((num == 32) && (first == 0)) {
buffer[3] = (value >> 24) & 0xff;
buffer[2] = (value >> 16) & 0xff;
buffer[1] = (value >> 8) & 0xff;
buffer[0] = (value >> 0) & 0xff;
+ } else if ((num == 64) && (first == 0)) {
+ buffer[7] = (value >> 56) & 0xff;
+ buffer[6] = (value >> 48) & 0xff;
+ buffer[5] = (value >> 40) & 0xff;
+ buffer[4] = (value >> 32) & 0xff;
+ buffer[3] = (value >> 24) & 0xff;
+ buffer[2] = (value >> 16) & 0xff;
+ buffer[1] = (value >> 8) & 0xff;
+ buffer[0] = (value >> 0) & 0xff;
} else {
for (unsigned i = first; i < first + num; i++) {
if (((value >> (i - first)) & 1) == 1)
}
}
}
+
/**
* Retrieves @c num bits from @c _buffer, starting at the @c first bit,
* returning the bits in a 32-bit word. This routine fast-paths reads
* @param num The number of bits from @c _buffer to read (1-32).
* @returns Up to 32-bits that were read from @c _buffer.
*/
-static inline uint32_t buf_get_u32(const void *_buffer,
+static inline uint32_t buf_get_u32(const uint8_t *_buffer,
unsigned first, unsigned num)
{
- uint8_t *buffer = (uint8_t *)_buffer;
+ const uint8_t *buffer = _buffer;
if ((num == 32) && (first == 0)) {
return (((uint32_t)buffer[3]) << 24) |
uint32_t result = 0;
for (unsigned i = first; i < first + num; i++) {
if (((buffer[i / 8] >> (i % 8)) & 1) == 1)
- result |= 1 << (i - first);
+ result |= 1U << (i - first);
+ }
+ return result;
+ }
+}
+
+/**
+ * Retrieves @c num bits from @c _buffer, starting at the @c first bit,
+ * returning the bits in a 64-bit word. This routine fast-paths reads
+ * of little-endian, byte-aligned, 64-bit words.
+ * @param _buffer The buffer whose bits will be read.
+ * @param first The bit offset in @c _buffer to start reading (0-63).
+ * @param num The number of bits from @c _buffer to read (1-64).
+ * @returns Up to 64-bits that were read from @c _buffer.
+ */
+static inline uint64_t buf_get_u64(const uint8_t *_buffer,
+ unsigned first, unsigned num)
+{
+ const uint8_t *buffer = _buffer;
+
+ if ((num == 32) && (first == 0)) {
+ return 0 + ((((uint32_t)buffer[3]) << 24) | /* Note - zero plus is to avoid a checkpatch bug */
+ (((uint32_t)buffer[2]) << 16) |
+ (((uint32_t)buffer[1]) << 8) |
+ (((uint32_t)buffer[0]) << 0));
+ } else if ((num == 64) && (first == 0)) {
+ return 0 + ((((uint64_t)buffer[7]) << 56) | /* Note - zero plus is to avoid a checkpatch bug */
+ (((uint64_t)buffer[6]) << 48) |
+ (((uint64_t)buffer[5]) << 40) |
+ (((uint64_t)buffer[4]) << 32) |
+ (((uint64_t)buffer[3]) << 24) |
+ (((uint64_t)buffer[2]) << 16) |
+ (((uint64_t)buffer[1]) << 8) |
+ (((uint64_t)buffer[0]) << 0));
+ } else {
+ uint64_t result = 0;
+ for (unsigned i = first; i < first + num; i++) {
+ if (((buffer[i / 8] >> (i % 8)) & 1) == 1)
+ result = result | ((uint64_t)1 << (uint64_t)(i - first));
}
return result;
}
}
+
/**
* Inverts the ordering of bits inside a 32-bit word (e.g. 31..0 -> 0..31).
* This routine can be used to flip smaller data types by using smaller
int str_to_buf(const char *str, unsigned len,
void *bin_buf, unsigned buf_size, unsigned radix);
-char *buf_to_str(const void *buf, unsigned size, unsigned radix);
+char *buf_to_hex_str(const void *buf, unsigned size);
/* read a uint32_t from a buffer in target memory endianness */
static inline uint32_t fast_target_buffer_get_u32(const void *p, bool le)
return le ? le_to_h_u32(p) : be_to_h_u32(p);
}
-#endif /* BINARYBUFFER_H */
+static inline void bit_copy(uint8_t *dst, unsigned dst_offset, const uint8_t *src,
+ unsigned src_offset, unsigned bit_count)
+{
+ buf_set_buf(src, src_offset, dst, dst_offset, bit_count);
+}
+
+struct bit_copy_queue {
+ struct list_head list;
+};
+
+struct bit_copy_queue_entry {
+ uint8_t *dst;
+ unsigned dst_offset;
+ const uint8_t *src;
+ unsigned src_offset;
+ unsigned bit_count;
+ struct list_head list;
+};
+
+void bit_copy_queue_init(struct bit_copy_queue *q);
+int bit_copy_queued(struct bit_copy_queue *q, uint8_t *dst, unsigned dst_offset, const uint8_t *src,
+ unsigned src_offset, unsigned bit_count);
+void bit_copy_execute(struct bit_copy_queue *q);
+void bit_copy_discard(struct bit_copy_queue *q);
+
+/* functions to convert to/from hex encoded buffer
+ * used in ti-icdi driver and gdb server */
+size_t unhexify(uint8_t *bin, const char *hex, size_t count);
+size_t hexify(char *hex, const uint8_t *bin, size_t count, size_t out_maxlen);
+void buffer_shr(void *_buf, unsigned buf_len, unsigned count);
+
+#endif /* OPENOCD_HELPER_BINARYBUFFER_H */
projects / fw / openocd / blobdiff