FlapJackApps/libdivecomputer
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Defined a few macros for the ringbuffer code.

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This commit is contained in:
Jef Driesen 2008-07-03 05:26:47 +00:00
parent e4ab71db47
commit 0f625f601f
2 changed files with 20 additions and 16 deletions
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18
src/suunto_d9.c
View File

@ -17,7 +17,9 @@
message ("%s:%d: %s\n", __FILE__, __LINE__, expr); \ message ("%s:%d: %s\n", __FILE__, __LINE__, expr); \
} }
#define DISTANCE(a,b) ringbuffer_distance (a, b, 0x019A, SUUNTO_D9_MEMORY_SIZE - 2) #define RB_PROFILE_BEGIN 0x019A
#define RB_PROFILE_END SUUNTO_D9_MEMORY_SIZE - 2
#define RB_PROFILE_DISTANCE(a,b) ringbuffer_distance (a, b, RB_PROFILE_BEGIN, RB_PROFILE_END)
struct d9 { struct d9 {
struct serial *port; struct serial *port;
@ -357,11 +359,11 @@ suunto_d9_read_dives (d9 *device, dive_callback_t callback, void *userdata)
// Memory buffer to store all the dives. // Memory buffer to store all the dives.
unsigned char data[SUUNTO_D9_MEMORY_SIZE - 0x019A - 2] = {0}; unsigned char data[RB_PROFILE_END - RB_PROFILE_BEGIN] = {0};
// Calculate the total amount of bytes. // Calculate the total amount of bytes.
unsigned int remaining = DISTANCE (begin, end); unsigned int remaining = RB_PROFILE_DISTANCE (begin, end);
// To reduce the number of read operations, we always try to read // To reduce the number of read operations, we always try to read
// packages with the largest possible size. As a consequence, the // packages with the largest possible size. As a consequence, the
@ -382,7 +384,7 @@ suunto_d9_read_dives (d9 *device, dive_callback_t callback, void *userdata)
unsigned int previous = last; unsigned int previous = last;
while (current != begin) { while (current != begin) {
// Calculate the size of the current dive. // Calculate the size of the current dive.
unsigned int size = DISTANCE (previous, current); unsigned int size = RB_PROFILE_DISTANCE (previous, current);
message ("Pointers: dive=%u, current=%04x, previous=%04x, size=%u, remaining=%u, available=%u\n", message ("Pointers: dive=%u, current=%04x, previous=%04x, size=%u, remaining=%u, available=%u\n",
ndives + 1, current, previous, size, remaining, available); ndives + 1, current, previous, size, remaining, available);
@ -395,8 +397,8 @@ suunto_d9_read_dives (d9 *device, dive_callback_t callback, void *userdata)
// size first, and adjust when the end of the ringbuffer or // size first, and adjust when the end of the ringbuffer or
// the end of the profile data is reached. // the end of the profile data is reached.
unsigned int len = SUUNTO_D9_PACKET_SIZE; unsigned int len = SUUNTO_D9_PACKET_SIZE;
if (0x019A + len > address) if (RB_PROFILE_BEGIN + len > address)
len = address - 0x019A; // End of ringbuffer. len = address - RB_PROFILE_BEGIN; // End of ringbuffer.
if (nbytes + len > remaining) if (nbytes + len > remaining)
len = remaining - nbytes; // End of profile. len = remaining - nbytes; // End of profile.
/*if (nbytes + len > size) /*if (nbytes + len > size)
@ -415,8 +417,8 @@ suunto_d9_read_dives (d9 *device, dive_callback_t callback, void *userdata)
// Next package. // Next package.
nbytes += len; nbytes += len;
address -= len; address -= len;
if (address <= 0x019A) if (address <= RB_PROFILE_BEGIN)
address = SUUNTO_D9_MEMORY_SIZE - 2; address = RB_PROFILE_END;
} }
message ("Pointers: nbytes=%u\n", nbytes); message ("Pointers: nbytes=%u\n", nbytes);

18
src/suunto_vyper2.c
View File

@ -17,7 +17,9 @@
message ("%s:%d: %s\n", __FILE__, __LINE__, expr); \ message ("%s:%d: %s\n", __FILE__, __LINE__, expr); \
} }
#define DISTANCE(a,b) ringbuffer_distance (a, b, 0x019A, SUUNTO_VYPER2_MEMORY_SIZE - 2) #define RB_PROFILE_BEGIN 0x019A
#define RB_PROFILE_END SUUNTO_VYPER2_MEMORY_SIZE - 2
#define RB_PROFILE_DISTANCE(a,b) ringbuffer_distance (a, b, RB_PROFILE_BEGIN, RB_PROFILE_END)
struct vyper2 { struct vyper2 {
struct serial *port; struct serial *port;
@ -344,11 +346,11 @@ suunto_vyper2_read_dives (vyper2 *device, dive_callback_t callback, void *userda
// Memory buffer to store all the dives. // Memory buffer to store all the dives.
unsigned char data[SUUNTO_VYPER2_MEMORY_SIZE - 0x019A - 2] = {0}; unsigned char data[RB_PROFILE_END - RB_PROFILE_BEGIN] = {0};
// Calculate the total amount of bytes. // Calculate the total amount of bytes.
unsigned int remaining = DISTANCE (begin, end); unsigned int remaining = RB_PROFILE_DISTANCE (begin, end);
// To reduce the number of read operations, we always try to read // To reduce the number of read operations, we always try to read
// packages with the largest possible size. As a consequence, the // packages with the largest possible size. As a consequence, the
@ -369,7 +371,7 @@ suunto_vyper2_read_dives (vyper2 *device, dive_callback_t callback, void *userda
unsigned int previous = last; unsigned int previous = last;
while (current != begin) { while (current != begin) {
// Calculate the size of the current dive. // Calculate the size of the current dive.
unsigned int size = DISTANCE (previous, current); unsigned int size = RB_PROFILE_DISTANCE (previous, current);
message ("Pointers: dive=%u, current=%04x, previous=%04x, size=%u, remaining=%u, available=%u\n", message ("Pointers: dive=%u, current=%04x, previous=%04x, size=%u, remaining=%u, available=%u\n",
ndives + 1, current, previous, size, remaining, available); ndives + 1, current, previous, size, remaining, available);
@ -382,8 +384,8 @@ suunto_vyper2_read_dives (vyper2 *device, dive_callback_t callback, void *userda
// size first, and adjust when the end of the ringbuffer or // size first, and adjust when the end of the ringbuffer or
// the end of the profile data is reached. // the end of the profile data is reached.
unsigned int len = SUUNTO_VYPER2_PACKET_SIZE; unsigned int len = SUUNTO_VYPER2_PACKET_SIZE;
if (0x019A + len > address) if (RB_PROFILE_BEGIN + len > address)
len = address - 0x019A; // End of ringbuffer. len = address - RB_PROFILE_BEGIN; // End of ringbuffer.
if (nbytes + len > remaining) if (nbytes + len > remaining)
len = remaining - nbytes; // End of profile. len = remaining - nbytes; // End of profile.
/*if (nbytes + len > size) /*if (nbytes + len > size)
@ -402,8 +404,8 @@ suunto_vyper2_read_dives (vyper2 *device, dive_callback_t callback, void *userda
// Next package. // Next package.
nbytes += len; nbytes += len;
address -= len; address -= len;
if (address <= 0x019A) if (address <= RB_PROFILE_BEGIN)
address = SUUNTO_VYPER2_MEMORY_SIZE - 2; address = RB_PROFILE_END;
} }
message ("Pointers: nbytes=%u\n", nbytes); message ("Pointers: nbytes=%u\n", nbytes);