diff options
| author | Reinhard Panhuber <[email protected]> | 2021-04-23 11:48:54 +0200 |
|---|---|---|
| committer | Reinhard Panhuber <[email protected]> | 2021-04-23 11:48:54 +0200 |
| commit | 7072f0155e994005d8a0ccf5658f765df8a443b8 (patch) | |
| tree | 4bb86a60c7233e62fb75baea256e0dc9aebec7ca /src/common/tusb_fifo.h | |
| parent | a98d0217a05129b36d2eef76f36b986c31f84e92 (diff) | |
Change tu_fifo_get_linear_write/read_info() to return a struct
Compilers always complain that variables set by function via pointer
might be uninitialized so to avoid that return values are now delivered
via struct.
Diffstat (limited to 'src/common/tusb_fifo.h')
| -rw-r--r-- | src/common/tusb_fifo.h | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/src/common/tusb_fifo.h b/src/common/tusb_fifo.h index 28998ad24..c23f25723 100644 --- a/src/common/tusb_fifo.h +++ b/src/common/tusb_fifo.h @@ -80,6 +80,14 @@ typedef struct } tu_fifo_t; +typedef struct +{ + uint16_t len_lin ; ///< linear length in item size + uint16_t len_wrap ; ///< wrapped length in item size + void * ptr_lin ; ///< linear part start pointer + void * ptr_wrap ; ///< wrapped part start pointer +} tu_fifo_linear_wr_info; + #define TU_FIFO_INIT(_buffer, _depth, _type, _overwritable) \ { \ .buffer = _buffer, \ @@ -136,8 +144,8 @@ void tu_fifo_advance_read_pointer (tu_fifo_t *f, uint16_t n); // tu_fifo_advance_read_pointer()/tu_fifo_advance_write_pointer and conduct a second read/write operation // TODO - update comments -uint16_t tu_fifo_get_linear_read_info(tu_fifo_t *f, uint16_t offset, uint16_t n, void **ptr_lin, uint16_t *len_wrap, void **ptr_wrap); -uint16_t tu_fifo_get_linear_write_info(tu_fifo_t *f, uint16_t offset, uint16_t n, void **ptr_lin, uint16_t *len_wrap, void **ptr_wrap); +tu_fifo_linear_wr_info tu_fifo_get_linear_read_info(tu_fifo_t *f, uint16_t offset, uint16_t n); +tu_fifo_linear_wr_info tu_fifo_get_linear_write_info(tu_fifo_t *f, uint16_t offset, uint16_t n); static inline bool tu_fifo_peek(tu_fifo_t* f, void * p_buffer) { |