diff options
| author | info@mode42.com <info@mode42.com> | 2026-08-07 18:23:28 +0000 |
|---|---|---|
| committer | info@mode42.com <info@mode42.com> | 2026-08-07 18:23:28 +0000 |
| commit | fa05a5f8238e9e1417235711656e5062ccc843a7 (patch) | |
| tree | 46fbbd18de54492b59307c16efcc7f3152723238 /stacks/max25-bcpr/include/bcpr/bcpr_uart.h | |
Initial push
Diffstat (limited to 'stacks/max25-bcpr/include/bcpr/bcpr_uart.h')
| -rw-r--r-- | stacks/max25-bcpr/include/bcpr/bcpr_uart.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/stacks/max25-bcpr/include/bcpr/bcpr_uart.h b/stacks/max25-bcpr/include/bcpr/bcpr_uart.h new file mode 100644 index 0000000..fde720e --- /dev/null +++ b/stacks/max25-bcpr/include/bcpr/bcpr_uart.h @@ -0,0 +1,22 @@ +#ifndef BCPR_UART_H +#define BCPR_UART_H + +#include <stdint.h> + +/* When set, all UART I/O is a no-op (CI / --dry-run). */ +void bcpr_uart_set_dry_run(int on); +int bcpr_uart_ioperm(unsigned iobase, int on); +void bcpr_uart_outb(unsigned char val, unsigned port); +unsigned char bcpr_uart_inb(unsigned port); +void bcpr_uart_set_divisor(unsigned iobase, unsigned divisor); +void bcpr_uart_open_ser12(unsigned iobase); +void bcpr_uart_close_ser12(unsigned iobase); +unsigned char bcpr_uart_msr(unsigned iobase); +void bcpr_uart_mcr(unsigned iobase, unsigned char v); +void bcpr_uart_thr00(unsigned iobase); +/* LCR bit6 Set Break — force TXD continuous SPACE (RS-232 +V). Clear = normal. */ +void bcpr_uart_set_break(unsigned iobase, int on); +/* Poll LSR bit5 (THRE) until set or timeout_us. Returns 1 if empty, 0 on timeout. */ +int bcpr_uart_wait_thre(unsigned iobase, unsigned timeout_us); + +#endif |