diff options
| author | Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> | 2024-08-28 13:22:57 +0100 |
|---|---|---|
| committer | Philippe Mathieu-Daudé <philmd@linaro.org> | 2024-09-13 20:11:13 +0200 |
| commit | 570bf1439477db0a2fc839f745a1ab16688004c0 (patch) | |
| tree | a88adfaef83f3d426e64d655e16126a9b5081a34 /util | |
| parent | 28fbf33b3f6925dff8fcf1bae217d850d604a1d3 (diff) | |
fifo8: introduce fifo8_peek() function
This allows uses to peek the byte at the current head of the FIFO.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Octavian Purdila <tavip@google.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240828122258.928947-9-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Diffstat (limited to 'util')
| -rw-r--r-- | util/fifo8.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/util/fifo8.c b/util/fifo8.c index a8f5cea158..a26da66ad2 100644 --- a/util/fifo8.c +++ b/util/fifo8.c @@ -71,6 +71,12 @@ uint8_t fifo8_pop(Fifo8 *fifo) return ret; } +uint8_t fifo8_peek(Fifo8 *fifo) +{ + assert(fifo->num > 0); + return fifo->data[fifo->head]; +} + static const uint8_t *fifo8_peekpop_bufptr(Fifo8 *fifo, uint32_t max, uint32_t skip, uint32_t *numptr, bool do_pop) |