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| author |   downsj <downsj@openbsd.org> | 1999-11-28 12:07:02 +0000 |
|---|---|---|
| committer | downsj <downsj@openbsd.org> | 1999-11-28 12:07:02 +0000 |
| commit | f942129f9db4c02cc746cde7776f9a721aae4862 (patch) | |
| tree | 5186b6457885f046f4d674ab06a341ae0af4101c | |
| parent | Add lpt at puc. (diff) | |
| download | wireguard-openbsd-f942129f9db4c02cc746cde7776f9a721aae4862.tar.xz wireguard-openbsd-f942129f9db4c02cc746cde7776f9a721aae4862.zip | |
Enable TI16750 UART support.
| -rw-r--r-- | sys/arch/i386/isa/pccom.c | 22 |
1 files changed, 3 insertions, 19 deletions
diff --git a/sys/arch/i386/isa/pccom.c b/sys/arch/i386/isa/pccom.c index 2ed0b312cde..672388303fb 100644 --- a/sys/arch/i386/isa/pccom.c +++ b/sys/arch/i386/isa/pccom.c @@ -1,4 +1,4 @@ -/* $OpenBSD: pccom.c,v 1.33 1999/10/26 12:29:00 downsj Exp $ */ +/* $OpenBSD: pccom.c,v 1.34 1999/11/28 12:07:02 downsj Exp $ */ /* $NetBSD: com.c,v 1.82.4.1 1996/06/02 09:08:00 mrg Exp $ */ /* @@ -540,19 +540,19 @@ comattach(parent, self, aux) bus_space_write_1(iot, ioh, com_dlbh, dlbh); } -#ifdef notyet if (sc->sc_uarttype == COM_UART_16550A) { /* Probe for TI16750s */ bus_space_write_1(iot, ioh, com_lcr, lcr | LCR_DLAB); bus_space_write_1(iot, ioh, com_fifo, FIFO_ENABLE | FIFO_ENABLE_64BYTE); if ((bus_space_read_1(iot, ioh, com_iir) >> 5) == 7) { +#if 0 bus_space_write_1(iot, ioh, com_lcr, 0); if ((bus_space_read_1(iot, ioh, com_iir) >> 5) == 6) +#endif sc->sc_uarttype = COM_UART_TI16750; } bus_space_write_1(iot, ioh, com_fifo, FIFO_ENABLE); } -#endif /* Reset the LCR (latch access is probably enabled). */ bus_space_write_1(iot, ioh, com_lcr, lcr); @@ -600,13 +600,11 @@ comattach(parent, self, aux) SET(sc->sc_hwflags, COM_HW_FIFO); sc->sc_fifolen = 32; break; -#ifdef notyet case COM_UART_TI16750: printf(": ti16750, 64 byte fifo\n"); SET(sc->sc_hwflags, COM_HW_FIFO); sc->sc_fifolen = 64; break; -#endif case COM_UART_XR16850: printf(": xr16850 (rev %d), 128 byte fifo\n", sc->sc_uartrev); SET(sc->sc_hwflags, COM_HW_FIFO); @@ -818,11 +816,9 @@ comopen(dev, flag, mode, p) bus_space_write_1(iot, ioh, com_efr, 0); bus_space_write_1(iot, ioh, com_lcr, 0); break; -#ifdef notyet case COM_UART_TI16750: bus_space_write_1(iot, ioh, com_ier, 0); break; -#endif } #ifdef COM_HAYESP @@ -875,13 +871,11 @@ comopen(dev, flag, mode, p) else fifo |= FIFO_RCV3_TRIGGER_60|FIFO_XMT3_TRIGGER_56; break; -#ifdef notyet case COM_UART_TI16750: fifo |= FIFO_ENABLE_64BYTE; lcr = bus_space_read_1(iot, ioh, com_lcr); bus_space_write_1(iot, ioh, com_lcr, lcr | LCR_DLAB); -#endif default: if (tp->t_ispeed <= 1200) fifo |= FIFO_TRIGGER_1; @@ -911,10 +905,8 @@ comopen(dev, flag, mode, p) com_lsr), LSR_RXRDY)) break; } -#ifndef notyet if (sc->sc_uarttype == COM_UART_TI16750) bus_space_write_1(iot, ioh, com_lcr, lcr); -#endif } /* flush any pending I/O */ @@ -1058,11 +1050,9 @@ compwroff(sc) bus_space_write_1(iot, ioh, com_ier, IER_SLEEP); bus_space_write_1(iot, ioh, com_lcr, 0); break; -#ifdef notyet case COM_UART_TI16750: bus_space_write_1(iot, ioh, com_ier, IER_SLEEP); break; -#endif } } @@ -1331,9 +1321,7 @@ comparam(tp, t) if (!ISSET(sc->sc_hwflags, COM_HW_HAYESP) && ISSET(sc->sc_hwflags, COM_HW_FIFO)) { u_int8_t fifo = FIFO_ENABLE; -#ifdef notyet u_int8_t lcr2; -#endif switch (sc->sc_uarttype) { case COM_UART_ST16650V2: @@ -1348,13 +1336,11 @@ comparam(tp, t) else fifo |= FIFO_RCV3_TRIGGER_60|FIFO_XMT3_TRIGGER_56; break; -#ifdef notyet case COM_UART_TI16750: fifo |= FIFO_ENABLE_64BYTE; lcr2 = bus_space_read_1(iot, ioh, com_lcr); bus_space_write_1(iot, ioh, com_lcr, lcr2 | LCR_DLAB); -#endif default: if (t->c_ispeed <= 1200) fifo |= FIFO_TRIGGER_1; @@ -1363,10 +1349,8 @@ comparam(tp, t) } bus_space_write_1(iot, ioh, com_fifo, fifo); -#ifdef notyet if (sc->sc_uarttype == COM_UART_TI16750) bus_space_write_1(iot, ioh, com_lcr, lcr2); -#endif } } else bus_space_write_1(iot, ioh, com_lcr, lcr); |