Lines Matching refs:LSR
1322 ((INB(LSR) & XSRE) == 0)); in asy_isbusy()
1420 (void) INB(LSR); in asy_program()
1529 while ((INB(LSR) & XHRE) == 0) { in asyputchar()
1546 return ((INB(LSR) & RCA) != 0); in asyischar()
1646 lsr = INB(LSR); in asyintr()
1653 (void) INB(LSR); in asyintr()
1705 lsr = INB(LSR); in asyintr()
1774 lsr = INB(LSR); in async_txint()
1889 lsr = INB(LSR); in async_rxint()
2719 if (INB(LSR) & XHRE) { in async_nstart()
2748 if (INB(LSR) & XHRE) { in async_resume()
3057 while ((INB(LSR) & XSRE) == 0) { in async_ioctl()
3717 if ((ss = async->async_flowc) != '\0' && (INB(LSR) & XHRE)) { in asycheckflowcontrol_sw()