1999/0415/alphapc/ns16552.h (diff list | history)

alphapc/ns16552.h on 1999/0415
1999/0415		#define uartwrreg(u,r,v) outb((u)->port + (r), (u)->sticky[r] | (v)) #define uartrdreg(u,r) inb((u)->port + (r)) #define uartpower(x, y) /* * handle an interrupt to a single uart */ static void ns16552intrx(Ureg*, void* arg) { ns16552intr((ulong)arg); } void ns16552install(void) { static int already; if(already) return; already = 1; ns16552setup(Uart0, UartFREQ, "eia0"); intrenable(VectorUART0, ns16552intrx, (void*)0, BUSUNKNOWN); ns16552setup(Uart1, UartFREQ, "eia1"); intrenable(VectorUART1, ns16552intrx, (void*)0, BUSUNKNOWN); } #define RD(r) inb(Uart0+(r)) static void ns16552iputc(char c) { mb(); while((RD(5) & (1<<5)) == 0) mb(); outb(Uart0, c); mb(); while((RD(5) & (1<<5)) == 0) mb(); } int iprint(char *fmt, ...) { int n, i, s; char buf[512]; va_list arg; va_start(arg, fmt); n = doprint(buf, buf+sizeof(buf), fmt, arg) - buf; va_end(arg); s = splhi(); for(i = 0; i < n; i++) ns16552iputc(buf[i]); splx(s); return n; }