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command: Prefer uint8_t* for buffers; prefer uint8_fast_t for lengths

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Prefer using 'uint8_t' buffers as it is too easy to run into C sign
extension problems with 'char' buffers.  Prefer using 'uint_fast8_t'
for buffer lengths as gcc does a better job compiling them on 32bit
mcus.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor
2018-05-24 12:49:23 -04:00
parent 2a55741ea8
commit cb4e165071
11 changed files with 71 additions and 78 deletions
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13
src/generic/usb_cdc.c
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@@ -23,8 +23,7 @@
****************************************************************/
static struct task_wake usb_bulk_in_wake;
static char transmit_buf[96];
static uint8_t transmit_pos;
static uint8_t transmit_buf[96], transmit_pos;
void
usb_notify_bulk_in(void)
@@ -65,8 +64,8 @@ console_sendf(const struct command_encoder *ce, va_list args)
return;
// Generate message
char *buf = &transmit_buf[tpos];
uint8_t msglen = command_encodef(buf, ce, args);
uint8_t *buf = &transmit_buf[tpos];
uint_fast8_t msglen = command_encodef(buf, ce, args);
command_add_frame(buf, msglen);
// Start message transmit
@@ -80,8 +79,7 @@ console_sendf(const struct command_encoder *ce, va_list args)
****************************************************************/
static struct task_wake usb_bulk_out_wake;
static char receive_buf[128];
static uint8_t receive_pos;
static uint8_t receive_buf[128], receive_pos;
void
usb_notify_bulk_out(void)
@@ -95,8 +93,7 @@ usb_bulk_out_task(void)
if (!sched_check_wake(&usb_bulk_out_wake))
return;
// Process any existing message blocks
uint_fast8_t rpos = receive_pos;
uint8_t pop_count;
uint_fast8_t rpos = receive_pos, pop_count;
int_fast8_t ret = command_find_block(receive_buf, rpos, &pop_count);
if (ret > 0)
command_dispatch(receive_buf, pop_count);