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Merge branch 'ringbuffer'

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This commit is contained in:
Jef Driesen 2024-03-14 12:26:52 +01:00
commit 60a9b889de
14 changed files with 62 additions and 55 deletions
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2
src/cochran_commander.c
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@ -603,7 +603,7 @@ cochran_commander_profile_size(cochran_commander_device_t *device, cochran_data_
// Corrupt dive, guess the end address
sample_end_address = cochran_commander_guess_sample_end_address(device, data, dive_num);
return ringbuffer_distance(sample_start_address, sample_end_address, 0, device->layout->rb_profile_begin, device->layout->rb_profile_end);
return ringbuffer_distance(sample_start_address, sample_end_address, DC_RINGBUFFER_EMPTY, device->layout->rb_profile_begin, device->layout->rb_profile_end);
}

6
src/cressi_edy.c
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@ -432,7 +432,7 @@ cressi_edy_device_foreach (dc_device_t *abstract, dc_dive_callback_t callback, v
}
// Get the number of logbook items.
unsigned int count = ringbuffer_distance (first, last, 0, layout->rb_logbook_begin, layout->rb_logbook_end) + 1;
unsigned int count = ringbuffer_distance (first, last, DC_RINGBUFFER_EMPTY, layout->rb_logbook_begin, layout->rb_logbook_end) + 1;
// Get the profile pointer.
unsigned int eop = array_uint_le (logbook + layout->config + 2, layout->rb_logbook_size) * SZ_PAGE + layout->rb_profile_begin;
@ -457,7 +457,7 @@ cressi_edy_device_foreach (dc_device_t *abstract, dc_dive_callback_t callback, v
}
// Get the profile length.
unsigned int length = ringbuffer_distance (current, previous, 1, layout->rb_profile_begin, layout->rb_profile_end);
unsigned int length = ringbuffer_distance (current, previous, DC_RINGBUFFER_FULL, layout->rb_profile_begin, layout->rb_profile_end);
// Check for a ringbuffer overflow.
if (total + length > layout->rb_profile_end - layout->rb_profile_begin) {
@ -510,7 +510,7 @@ cressi_edy_device_foreach (dc_device_t *abstract, dc_dive_callback_t callback, v
}
// Get the profile length.
unsigned int length = ringbuffer_distance (current, previous, 1, layout->rb_profile_begin, layout->rb_profile_end);
unsigned int length = ringbuffer_distance (current, previous, DC_RINGBUFFER_FULL, layout->rb_profile_begin, layout->rb_profile_end);
// Move to the begin of the current dive.
offset -= length;

2
src/cressi_leonardo.c
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@ -41,7 +41,7 @@
#define RB_PROFILE_BEGIN 0x1438
#define RB_PROFILE_END SZ_MEMORY
#define RB_PROFILE_DISTANCE(a,b) ringbuffer_distance (a, b, 0, RB_PROFILE_BEGIN, RB_PROFILE_END)
#define RB_PROFILE_DISTANCE(a,b) ringbuffer_distance (a, b, DC_RINGBUFFER_EMPTY, RB_PROFILE_BEGIN, RB_PROFILE_END)
#define MAXRETRIES 4
#define PACKETSIZE 32

2
src/hw_frog.c
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@ -40,7 +40,7 @@
#define RB_PROFILE_BEGIN 0x000000
#define RB_PROFILE_END 0x200000
#define RB_PROFILE_DISTANCE(a,b) ringbuffer_distance (a, b, 0, RB_PROFILE_BEGIN, RB_PROFILE_END)
#define RB_PROFILE_DISTANCE(a,b) ringbuffer_distance (a, b, DC_RINGBUFFER_EMPTY, RB_PROFILE_BEGIN, RB_PROFILE_END)
#define READY 0x4D
#define HEADER 0x61

4
src/liquivision_lynx.c
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@ -67,12 +67,12 @@
#define RB_LOGBOOK_BEGIN (1 * PAGESIZE)
#define RB_LOGBOOK_END (25 * PAGESIZE)
#define RB_LOGBOOK_SIZE (RB_LOGBOOK_END - RB_LOGBOOK_BEGIN)
#define RB_LOGBOOK_DISTANCE(a,b) ringbuffer_distance (a, b, 1, RB_LOGBOOK_BEGIN, RB_LOGBOOK_END)
#define RB_LOGBOOK_DISTANCE(a,b) ringbuffer_distance (a, b, DC_RINGBUFFER_FULL, RB_LOGBOOK_BEGIN, RB_LOGBOOK_END)
#define RB_PROFILE_BEGIN (25 * PAGESIZE)
#define RB_PROFILE_END (500 * PAGESIZE)
#define RB_PROFILE_SIZE (RB_PROFILE_END - RB_PROFILE_BEGIN)
#define RB_PROFILE_DISTANCE(a,b) ringbuffer_distance (a, b, 1, RB_PROFILE_BEGIN, RB_PROFILE_END)
#define RB_PROFILE_DISTANCE(a,b) ringbuffer_distance (a, b, DC_RINGBUFFER_FULL, RB_PROFILE_BEGIN, RB_PROFILE_END)
#define SZ_HEADER_XEN 80
#define SZ_HEADER_OTHER 96

4
src/oceanic_common.c
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@ -32,10 +32,10 @@
#define VTABLE(abstract) ((const oceanic_common_device_vtable_t *) abstract->vtable)
#define RB_LOGBOOK_DISTANCE(a,b,l) ringbuffer_distance (a, b, 1, l->rb_logbook_begin, l->rb_logbook_end)
#define RB_LOGBOOK_DISTANCE(a,b,l) ringbuffer_distance (a, b, DC_RINGBUFFER_FULL, l->rb_logbook_begin, l->rb_logbook_end)
#define RB_LOGBOOK_INCR(a,b,l) ringbuffer_increment (a, b, l->rb_logbook_begin, l->rb_logbook_end)
#define RB_PROFILE_DISTANCE(a,b,l) ringbuffer_distance (a, b, 0, l->rb_profile_begin, l->rb_profile_end)
#define RB_PROFILE_DISTANCE(a,b,l) ringbuffer_distance (a, b, DC_RINGBUFFER_EMPTY, l->rb_profile_begin, l->rb_profile_end)
#define RB_PROFILE_INCR(a,b,l) ringbuffer_increment (a, b, l->rb_profile_begin, l->rb_profile_end)
#define INVALID 0

76
src/ringbuffer.c
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@ -25,39 +25,43 @@
static unsigned int
normalize (unsigned int a, unsigned int size)
modulo (unsigned int x, unsigned int n, unsigned int d)
{
return a % size;
}
static unsigned int
distance (unsigned int a, unsigned int b, int mode, unsigned int size)
{
if (a < b) {
return (b - a) % size;
} else if (a > b) {
return size - (a - b) % size;
unsigned int result = 0;
if (d > x) {
#if 0
result = (n - (d - x) % n) % n;
#else
unsigned int m = (d - x) % n;
result = m ? n - m : m;
#endif
} else {
return (mode == 0 ? 0 : size);
result = (x - d) % n;
}
return result + d;
}
static unsigned int
increment (unsigned int a, unsigned int delta, unsigned int size)
distance (unsigned int a, unsigned int b, unsigned int n, unsigned int mode)
{
return (a + delta) % size;
}
static unsigned int
decrement (unsigned int a, unsigned int delta, unsigned int size)
{
if (delta <= a) {
return (a - delta) % size;
unsigned int result = 0;
if (a > b) {
#if 0
result = (n - (a - b) % n) % n;
#else
unsigned int m = (a - b) % n;
result = m ? n - m : m;
#endif
} else {
return size - (delta - a) % size;
result = (b - a) % n;
}
if (result == 0) {
return (mode == 0 ? 0 : n);
} else {
return result;
}
}
@ -65,38 +69,38 @@ decrement (unsigned int a, unsigned int delta, unsigned int size)
unsigned int
ringbuffer_normalize (unsigned int a, unsigned int begin, unsigned int end)
{
assert (end >= begin);
assert (a >= begin);
assert (end > begin);
return normalize (a, end - begin);
unsigned int n = end - begin;
return modulo (a, n, begin);
}
unsigned int
ringbuffer_distance (unsigned int a, unsigned int b, int mode, unsigned int begin, unsigned int end)
{
assert (end >= begin);
assert (a >= begin);
assert (end > begin);
return distance (a, b, mode, end - begin);
unsigned int n = end - begin;
return distance (a, b, n, mode);
}
unsigned int
ringbuffer_increment (unsigned int a, unsigned int delta, unsigned int begin, unsigned int end)
{
assert (end >= begin);
assert (a >= begin);
assert (end > begin);
return increment (a - begin, delta, end - begin) + begin;
unsigned int n = end - begin;
return modulo (a + delta % n, n, begin);
}
unsigned int
ringbuffer_decrement (unsigned int a, unsigned int delta, unsigned int begin, unsigned int end)
{
assert (end >= begin);
assert (a >= begin);
assert (end > begin);
return decrement (a - begin, delta, end - begin) + begin;
unsigned int n = end - begin;
return modulo (a + n - delta % n, n, begin);
}

3
src/ringbuffer.h
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@ -26,6 +26,9 @@
extern "C" {
#endif /* __cplusplus */
#define DC_RINGBUFFER_EMPTY 0
#define DC_RINGBUFFER_FULL 1
unsigned int
ringbuffer_normalize (unsigned int a, unsigned int begin, unsigned int end);

2
src/seac_screen.c
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@ -58,7 +58,7 @@
#define RB_PROFILE_BEGIN 0x010000
#define RB_PROFILE_END 0x200000
#define RB_PROFILE_SIZE (RB_PROFILE_END - RB_PROFILE_BEGIN)
#define RB_PROFILE_DISTANCE(a,b) ringbuffer_distance (a, b, 1, RB_PROFILE_BEGIN, RB_PROFILE_END)
#define RB_PROFILE_DISTANCE(a,b) ringbuffer_distance (a, b, DC_RINGBUFFER_FULL, RB_PROFILE_BEGIN, RB_PROFILE_END)
#define RB_PROFILE_INCR(a,d) ringbuffer_increment (a, d, RB_PROFILE_BEGIN, RB_PROFILE_END)
typedef struct seac_screen_device_t {

2
src/suunto_common.c
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@ -27,7 +27,7 @@
#include "ringbuffer.h"
#include "array.h"
#define RB_PROFILE_DISTANCE(a,b,l) ringbuffer_distance (a, b, 0, l->rb_profile_begin, l->rb_profile_end)
#define RB_PROFILE_DISTANCE(a,b,l) ringbuffer_distance (a, b, DC_RINGBUFFER_EMPTY, l->rb_profile_begin, l->rb_profile_end)
#define RB_PROFILE_PEEK(a,l) ringbuffer_decrement (a, l->peek, l->rb_profile_begin, l->rb_profile_end)
void

4
src/suunto_common2.c
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@ -297,7 +297,7 @@ suunto_common2_device_foreach (dc_device_t *abstract, dc_dive_callback_t callbac
ERROR (abstract->context, "Invalid ringbuffer pointer detected (0x%04x 0x%04x 0x%04x %u).", begin, last, end, count);
remaining = layout->rb_profile_end - layout->rb_profile_begin;
} else {
remaining = RB_PROFILE_DISTANCE (layout, begin, end, count != 0);
remaining = RB_PROFILE_DISTANCE (layout, begin, end, count ? DC_RINGBUFFER_FULL : DC_RINGBUFFER_EMPTY);
}
// Update and emit a progress event.
@ -328,7 +328,7 @@ suunto_common2_device_foreach (dc_device_t *abstract, dc_dive_callback_t callbac
unsigned int offset = remaining;
while (offset) {
// Calculate the size of the current dive.
unsigned int size = RB_PROFILE_DISTANCE (layout, current, previous, 1);
unsigned int size = RB_PROFILE_DISTANCE (layout, current, previous, DC_RINGBUFFER_FULL);
if (size < 4 || size > offset) {
ERROR (abstract->context, "Unexpected profile size (%u %u).", size, offset);

2
src/suunto_solution.c
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@ -300,7 +300,7 @@ suunto_solution_extract_dives (dc_device_t *abstract, const unsigned char data[]
// to find the start of the current dive.
unsigned int peek = ringbuffer_increment (current, 2, RB_PROFILE_BEGIN, RB_PROFILE_END);
if (data[peek] == 0x80) {
unsigned int len = ringbuffer_distance (previous, current, 0, RB_PROFILE_BEGIN, RB_PROFILE_END);
unsigned int len = ringbuffer_distance (previous, current, DC_RINGBUFFER_EMPTY, RB_PROFILE_BEGIN, RB_PROFILE_END);
if (callback && !callback (buffer + idx, len, NULL, 0, userdata))
return DC_STATUS_SUCCESS;

2
src/uwatec_aladin.c
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@ -36,7 +36,7 @@
#define RB_PROFILE_BEGIN 0x000
#define RB_PROFILE_END 0x600
#define RB_PROFILE_NEXT(a) ringbuffer_increment (a, 1, RB_PROFILE_BEGIN, RB_PROFILE_END)
#define RB_PROFILE_DISTANCE(a,b) ringbuffer_distance (a, b, 0, RB_PROFILE_BEGIN, RB_PROFILE_END)
#define RB_PROFILE_DISTANCE(a,b) ringbuffer_distance (a, b, DC_RINGBUFFER_EMPTY, RB_PROFILE_BEGIN, RB_PROFILE_END)
#define HEADER 4

6
src/zeagle_n2ition3.c
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@ -277,7 +277,7 @@ zeagle_n2ition3_device_foreach (dc_device_t *abstract, dc_dive_callback_t callba
}
// Get the number of logbook items.
unsigned int count = ringbuffer_distance (first, last, 0, RB_LOGBOOK_BEGIN, RB_LOGBOOK_END) + 1;
unsigned int count = ringbuffer_distance (first, last, DC_RINGBUFFER_EMPTY, RB_LOGBOOK_BEGIN, RB_LOGBOOK_END) + 1;
// Get the profile pointer.
unsigned int eop = array_uint16_le (config + 0x7E);
@ -302,7 +302,7 @@ zeagle_n2ition3_device_foreach (dc_device_t *abstract, dc_dive_callback_t callba
}
// Get the profile length.
unsigned int length = ringbuffer_distance (current, previous, 1, RB_PROFILE_BEGIN, RB_PROFILE_END);
unsigned int length = ringbuffer_distance (current, previous, DC_RINGBUFFER_FULL, RB_PROFILE_BEGIN, RB_PROFILE_END);
// Check for a ringbuffer overflow.
if (total + length > RB_PROFILE_END - RB_PROFILE_BEGIN) {
@ -344,7 +344,7 @@ zeagle_n2ition3_device_foreach (dc_device_t *abstract, dc_dive_callback_t callba
unsigned int current = array_uint16_le (config + 2 * idx);
// Get the profile length.
unsigned int length = ringbuffer_distance (current, previous, 1, RB_PROFILE_BEGIN, RB_PROFILE_END);
unsigned int length = ringbuffer_distance (current, previous, DC_RINGBUFFER_FULL, RB_PROFILE_BEGIN, RB_PROFILE_END);
// Move to the begin of the current dive.
offset -= length;