diff options
author | Uros Majstorovic <majstor@majstor.org> | 2020-08-05 02:52:42 +0200 |
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committer | Uros Majstorovic <majstor@majstor.org> | 2020-08-05 02:52:42 +0200 |
commit | 0894a1e7664504312a9cdfc826eef89030aaaa1b (patch) | |
tree | 51e37e46d7862437583dbe02e6ebf03997a664be /code/fe310/bsp/gloss/sys_write.c | |
parent | dff71bc297b744856e303ad9a175de92c9acae0d (diff) |
new directory sructure for fe310 fw
Diffstat (limited to 'code/fe310/bsp/gloss/sys_write.c')
-rw-r--r-- | code/fe310/bsp/gloss/sys_write.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/code/fe310/bsp/gloss/sys_write.c b/code/fe310/bsp/gloss/sys_write.c new file mode 100644 index 0000000..2095940 --- /dev/null +++ b/code/fe310/bsp/gloss/sys_write.c @@ -0,0 +1,22 @@ +#include <sys/types.h> +#include <errno.h> +#include <unistd.h> + +#include "platform.h" + +/* Write to a file. */ +ssize_t +_write(int fd, const void *ptr, size_t len) +{ + if ((fd != STDOUT_FILENO) && (fd != STDERR_FILENO)) { + errno = ENOSYS; + return -1; + } + + const char *current = ptr; + for (size_t i = 0; i < len; i++) { + while (UART0_REG(UART_REG_TXFIFO) & 0x80000000); + UART0_REG(UART_REG_TXFIFO) = current[i]; + } + return len; +} |