mirror of
https://github.com/freebsd/freebsd-src
synced 2024-09-23 02:04:46 +00:00
Merge some typo fixes from dev/sio/sio.c (siostop -> comstop)
Remove EXTRA_SIO/NSIOTOT and make it fully dynamic (from dev/sio/sio.c) Make sio work for pccard here - pccardd doesn't activate interrupts until after prove has succeeded. Mark the initial reset of likely sio ports as broken as it depended on config supplying a list of locations to probe, devices are now proved standalone. Optimize a bit of COM_NOAST4() logic. Use bus_get_resource_start() etc rather than using isa-centric calls. Reactivate the IIR_TXRDYBUG test, I've got a card here with it. Try to be a bit smarter about activating interrupts (ie: don't panic if polled) Fix some style bugs that have crept in over time (there are still more).
This commit is contained in:
Peter Wemm
parent
c6793aa821
commit
1447114333
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=53344
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@ -106,12 +106,6 @@
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#define enable_intr() COM_ENABLE_INTR()
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#endif /* SMP */
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#ifndef EXTRA_SIO
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#define EXTRA_SIO 4 /* XXX shouldn't need NSIO */
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#endif
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#define NSIOTOT (NSIO + EXTRA_SIO)
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#define LOTS_OF_EVENTS 64 /* helps separate urgent events from input */
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#define CALLOUT_MASK 0x80
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@ -154,7 +148,7 @@
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*
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* The following com and tty flags correspond closely:
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* CS_BUSY = TS_BUSY (maintained by comstart(), siopoll() and
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* siostop())
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* comstop())
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* CS_TTGO = ~TS_TTSTOP (maintained by comparam() and comstart())
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* CS_CTS_OFLOW = CCTS_OFLOW (maintained by comparam())
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* CS_RTS_IFLOW = CRTS_IFLOW (maintained by comparam())
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@ -395,6 +389,7 @@ static int sio_timeout;
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static int sio_timeouts_until_log;
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static struct callout_handle sio_timeout_handle
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= CALLOUT_HANDLE_INITIALIZER(&sio_timeout_handle);
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static int sio_numunits;
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static struct speedtab comspeedtab[] = {
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{ 0, 0 },
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@ -484,11 +479,23 @@ sysctl_machdep_comdefaultrate SYSCTL_HANDLER_ARGS
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SYSCTL_PROC(_machdep, OID_AUTO, conspeed, CTLTYPE_INT | CTLFLAG_RW,
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0, 0, sysctl_machdep_comdefaultrate, "I", "");
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#define SET_FLAG(dev, bit) device_set_flags(dev, device_get_flags(dev) | (bit))
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#define CLR_FLAG(dev, bit) device_set_flags(dev, device_get_flags(dev) & ~(bit))
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#if NCARD > 0
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static int
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sio_pccard_probe(dev)
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device_t dev;
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{
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const char *name;
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name = pccard_get_name(dev);
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if (strcmp(name, "sio"))
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return ENXIO;
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/* Do not probe IRQ - pccardd has not arranged for it yet */
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SET_FLAG(dev, COM_C_NOPROBE);
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return (sioprobe(dev));
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}
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@ -539,8 +546,6 @@ sio_pccard_detach(dev)
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}
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#endif /* NCARD > 0 */
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#define SET_FLAG(dev, bit) device_set_flags(dev, device_get_flags(dev) | (bit))
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#define CLR_FLAG(dev, bit) device_set_flags(dev, device_get_flags(dev) & ~(bit))
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static struct isa_pnp_id sio_ids[] = {
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{0x0005d041, "Standard PC COM port"}, /* PNP0500 */
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@ -570,7 +575,10 @@ static int
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sioprobe(dev)
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device_t dev;
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{
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#if 0
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static bool_t already_init;
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device_t xdev;
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#endif
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bool_t failures[10];
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int fn;
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device_t idev;
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@ -579,7 +587,10 @@ sioprobe(dev)
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intrmask_t irqs;
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u_char mcr_image;
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int result;
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device_t xdev;
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#ifdef COM_MULTIPORT
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Port_t xiobase;
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#endif
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int xirq;
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u_int flags = device_get_flags(dev);
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int rid;
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struct resource *port;
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@ -590,6 +601,14 @@ sioprobe(dev)
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if (!port)
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return ENXIO;
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#if 0
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/*
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* XXX this is broken - when we are first called, there are no
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* previously configured IO ports. We could hard code
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* 0x3f8, 0x2f8, 0x3e8, 0x2e8 etc but that's probably worse.
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* This code has been doing nothing since the conversion since
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* "count" is zero the first time around.
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*/
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if (!already_init) {
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/*
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* Turn off MCR_IENABLE for all likely serial ports. An unused
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@ -598,17 +617,19 @@ sioprobe(dev)
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* XXX the gate enable is elsewhere for some multiports.
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*/
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device_t *devs;
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int count, i;
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int count, i, xioport;
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devclass_get_devices(sio_devclass, &devs, &count);
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for (i = 0; i < count; i++) {
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xdev = devs[i];
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if (device_is_enabled(xdev))
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outb(isa_get_port(xdev) + com_mcr, 0);
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xioport = bus_get_resource_start(xdev, SYS_RES_IOPORT, 0);
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if (device_is_enabled(xdev) && xioport > 0)
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outb(xioport + com_mcr, 0);
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}
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free(devs, M_TEMP);
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already_init = TRUE;
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}
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#endif
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if (COM_LLCONSOLE(flags)) {
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printf("sio%d: reserved for low-level i/o\n",
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@ -627,21 +648,22 @@ sioprobe(dev)
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idev = dev;
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mcr_image = MCR_IENABLE;
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#ifdef COM_MULTIPORT
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if (COM_ISMULTIPORT(flags)) {
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if (COM_ISMULTIPORT(flags) && !COM_NOTAST4(flags)) {
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idev = devclass_get_device(sio_devclass, COM_MPMASTER(flags));
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if (idev == NULL) {
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printf("sio%d: master device %d not configured\n",
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device_get_unit(dev), COM_MPMASTER(flags));
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idev = dev;
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}
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if (!COM_NOTAST4(flags)) {
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outb(isa_get_port(idev) + com_scr,
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isa_get_irq(idev) >= 0 ? 0x80 : 0);
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mcr_image = 0;
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xiobase = bus_get_resource_start(idev, SYS_RES_IOPORT, 0);
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if (xiobase > 0) {
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xirq = bus_get_resource_start(idev, SYS_RES_IRQ, 0);
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outb(xiobase + com_scr, xirq >= 0 ? 0x80 : 0);
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}
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mcr_image = 0;
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}
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#endif /* COM_MULTIPORT */
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if (isa_get_irq(idev) < 0)
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if (bus_get_resource_start(idev, SYS_RES_IRQ, 0) <= 0)
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mcr_image = 0;
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bzero(failures, sizeof failures);
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@ -726,31 +748,39 @@ sioprobe(dev)
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/*
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* Some pcmcia cards have the "TXRDY bug", so we check everyone
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* for IIR_TXRDY implementation ( Palido 321s, DC-1S... )
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* XXX Bruce, is this OK? XXX
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*/
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#if 0
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#if 1
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/* Reading IIR register twice */
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for ( fn = 0; fn < 2; fn ++ ) {
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for (fn = 0; fn < 2; fn ++) {
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DELAY(10000);
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failures[6] = inb(iobase + com_iir);
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}
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/* Check IIR_TXRDY clear ? */
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result = 0;
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if ( failures[6] & IIR_TXRDY ) {
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if (failures[6] & IIR_TXRDY) {
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/* Nop, Double check with clearing IER */
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outb(iobase + com_ier, 0);
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if ( inb(iobase + com_iir) & IIR_NOPEND ) {
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if (inb(iobase + com_iir) & IIR_NOPEND) {
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/* Ok. we're familia this gang */
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SET_FLAG(dev, COM_C_IIR_TXRDYBUG); /* Set IIR_TXRDYBUG */
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SET_FLAG(dev, COM_C_IIR_TXRDYBUG);
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} else {
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/* Unknown, Just omit this chip.. XXX */
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result = ENXIO;
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}
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} else {
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/* OK. this is well-known guys */
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CLR_FLAG(dev, COM_C_IIR_TXRDYBUG); /*Clear IIR_TXRDYBUG*/
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CLR_FLAG(dev, COM_C_IIR_TXRDYBUG);
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}
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#else
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result = 0;
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#endif
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if (COM_NOPROBE(flags)) {
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outb(iobase + com_cfcr, CFCR_8BITS);
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enable_intr();
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bus_release_resource(dev, SYS_RES_IOPORT, rid, port);
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return (iobase == siocniobase ? 0 : result);
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}
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/*
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* Check that
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* o the CFCR, IER and MCR in UART hold the values written to them
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@ -789,10 +819,11 @@ sioprobe(dev)
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enable_intr();
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irqs = irqmap[1] & ~irqmap[0];
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if (isa_get_irq(idev) >= 0 && ((1 << isa_get_irq(idev)) & irqs) == 0)
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xirq = bus_get_resource_start(idev, SYS_RES_IRQ, 0);
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if (xirq >= 0 && ((1 << xirq) & irqs) == 0)
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printf(
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"sio%d: configured irq %d not in bitmap of probed irqs %#x\n",
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device_get_unit(dev), isa_get_irq(idev), irqs);
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device_get_unit(dev), xirq, irqs);
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if (bootverbose)
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printf("sio%d: irq maps: %#x %#x %#x %#x\n",
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device_get_unit(dev),
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@ -898,11 +929,13 @@ sioattach(dev)
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Port_t *espp;
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#endif
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Port_t iobase;
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int irq;
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int unit;
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void *ih;
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u_int flags = device_get_flags(dev);
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u_int flags;
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int rid;
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struct resource *port;
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int ret;
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rid = 0;
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port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
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@ -911,9 +944,13 @@ sioattach(dev)
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return ENXIO;
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iobase = rman_get_start(port);
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irq = bus_get_resource_start(dev, SYS_RES_IRQ, 0);
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unit = device_get_unit(dev);
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com = device_get_softc(dev);
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flags = device_get_flags(dev);
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if (unit >= sio_numunits)
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sio_numunits = unit + 1;
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/*
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* sioprobe() has initialized the device registers as follows:
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* o cfcr = CFCR_8BITS.
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@ -932,7 +969,7 @@ sioattach(dev)
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com->cfcr_image = CFCR_8BITS;
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com->dtr_wait = 3 * hz;
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com->loses_outints = COM_LOSESOUTINTS(flags) != 0;
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com->no_irq = isa_get_irq(dev) < 0;
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com->no_irq = irq < 0;
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com->tx_fifo_size = 1;
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com->obufs[0].l_head = com->obuf1;
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com->obufs[1].l_head = com->obuf2;
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@ -1076,19 +1113,23 @@ determined_type: ;
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#ifdef COM_MULTIPORT
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if (COM_ISMULTIPORT(flags)) {
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device_t masterdev;
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int irq;
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com->multiport = TRUE;
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printf(" (multiport");
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if (unit == COM_MPMASTER(flags))
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printf(" master");
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printf(")");
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com->no_irq =
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isa_get_irq(devclass_get_device
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(sio_devclass, COM_MPMASTER(flags))) < 0;
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masterdev = devclass_get_device(sio_devclass,
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COM_MPMASTER(flags));
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irq = bus_get_resource_start(masterdev, SYS_RES_IRQ, 0);
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com->no_irq = irq < 0;
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}
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#endif /* COM_MULTIPORT */
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if (unit == comconsole)
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printf(", console");
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if ( COM_IIR_TXRDYBUG(flags) )
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if (COM_IIR_TXRDYBUG(flags))
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printf(" with a bogus IIR_TXRDY register");
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printf("\n");
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@ -1114,10 +1155,14 @@ determined_type: ;
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rid = 0;
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com->irqres = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0ul, ~0ul, 1,
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RF_SHAREABLE | RF_ACTIVE);
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BUS_SETUP_INTR(device_get_parent(dev), dev, com->irqres,
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INTR_TYPE_TTY | INTR_TYPE_FAST,
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siointr, com, &ih);
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RF_ACTIVE);
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if (com->irqres) {
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ret = BUS_SETUP_INTR(device_get_parent(dev), dev, com->irqres,
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INTR_TYPE_TTY | INTR_TYPE_FAST,
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siointr, com, &ih);
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if (ret)
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device_printf(dev, "could not activate interrupt\n");
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}
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return (0);
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}
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|
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@ -1139,7 +1184,8 @@ sioopen(dev, flag, mode, p)
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mynor = minor(dev);
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unit = MINOR_TO_UNIT(mynor);
|
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if ((u_int) unit >= NSIOTOT || (com = com_addr(unit)) == NULL)
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com = com_addr(unit);
|
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if (com == NULL)
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return (ENXIO);
|
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if (com->gone)
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return (ENXIO);
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|
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@ -1589,7 +1635,7 @@ siointr(arg)
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COM_LOCK();
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do {
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possibly_more_intrs = FALSE;
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for (unit = 0; unit < NSIOTOT; ++unit) {
|
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for (unit = 0; unit < sio_numunits; ++unit) {
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com = com_addr(unit);
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/*
|
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* XXX COM_LOCK();
|
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|
|
@ -1775,7 +1821,7 @@ if (com->iptr - com->ibuf == 8)
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com->obufq.l_next = qp;
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} else {
|
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/* output just completed */
|
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if ( COM_IIR_TXRDYBUG(com->flags) ) {
|
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if (COM_IIR_TXRDYBUG(com->flags)) {
|
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int_ctl_new = int_ctl & ~IER_ETXRDY;
|
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}
|
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com->state &= ~CS_BUSY;
|
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|
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@ -1786,7 +1832,7 @@ if (com->iptr - com->ibuf == 8)
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setsofttty(); /* handle at high level ASAP */
|
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}
|
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}
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if ( COM_IIR_TXRDYBUG(com->flags) && (int_ctl != int_ctl_new)) {
|
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if (COM_IIR_TXRDYBUG(com->flags) && (int_ctl != int_ctl_new)) {
|
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outb(com->intr_ctl_port, int_ctl_new);
|
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}
|
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}
|
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|
|
@ -1966,7 +2012,7 @@ siopoll()
|
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if (com_events == 0)
|
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return;
|
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repeat:
|
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for (unit = 0; unit < NSIOTOT; ++unit) {
|
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for (unit = 0; unit < sio_numunits; ++unit) {
|
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struct com_s *com;
|
||||
int incc;
|
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struct tty *tp;
|
||||
|
|
@ -2475,7 +2521,7 @@ siosettimeout()
|
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untimeout(comwakeup, (void *)NULL, sio_timeout_handle);
|
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sio_timeout = hz;
|
||||
someopen = FALSE;
|
||||
for (unit = 0; unit < NSIOTOT; ++unit) {
|
||||
for (unit = 0; unit < sio_numunits; ++unit) {
|
||||
com = com_addr(unit);
|
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if (com != NULL && com->tp != NULL
|
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&& com->tp->t_state & TS_ISOPEN && !com->gone) {
|
||||
|
|
@ -2511,7 +2557,7 @@ comwakeup(chan)
|
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* Recover from lost output interrupts.
|
||||
* Poll any lines that don't use interrupts.
|
||||
*/
|
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for (unit = 0; unit < NSIOTOT; ++unit) {
|
||||
for (unit = 0; unit < sio_numunits; ++unit) {
|
||||
com = com_addr(unit);
|
||||
if (com != NULL && !com->gone
|
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&& (com->state >= (CS_BUSY | CS_TTGO) || com->poll)) {
|
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|
|
@ -2527,7 +2573,7 @@ comwakeup(chan)
|
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if (--sio_timeouts_until_log > 0)
|
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return;
|
||||
sio_timeouts_until_log = hz / sio_timeout;
|
||||
for (unit = 0; unit < NSIOTOT; ++unit) {
|
||||
for (unit = 0; unit < sio_numunits; ++unit) {
|
||||
int errnum;
|
||||
|
||||
com = com_addr(unit);
|
||||
|
|
@ -2651,7 +2697,7 @@ siocngetspeed(iobase, table)
|
|||
|
||||
code = dlbh << 8 | dlbl;
|
||||
|
||||
for ( ; table->sp_speed != -1; table++)
|
||||
for (; table->sp_speed != -1; table++)
|
||||
if (table->sp_code == code)
|
||||
return (table->sp_speed);
|
||||
|
||||
|
|
|
|||
140
sys/isa/sio.c
140
sys/isa/sio.c
|
|
@ -106,12 +106,6 @@
|
|||
#define enable_intr() COM_ENABLE_INTR()
|
||||
#endif /* SMP */
|
||||
|
||||
#ifndef EXTRA_SIO
|
||||
#define EXTRA_SIO 4 /* XXX shouldn't need NSIO */
|
||||
#endif
|
||||
|
||||
#define NSIOTOT (NSIO + EXTRA_SIO)
|
||||
|
||||
#define LOTS_OF_EVENTS 64 /* helps separate urgent events from input */
|
||||
|
||||
#define CALLOUT_MASK 0x80
|
||||
|
|
@ -154,7 +148,7 @@
|
|||
*
|
||||
* The following com and tty flags correspond closely:
|
||||
* CS_BUSY = TS_BUSY (maintained by comstart(), siopoll() and
|
||||
* siostop())
|
||||
* comstop())
|
||||
* CS_TTGO = ~TS_TTSTOP (maintained by comparam() and comstart())
|
||||
* CS_CTS_OFLOW = CCTS_OFLOW (maintained by comparam())
|
||||
* CS_RTS_IFLOW = CRTS_IFLOW (maintained by comparam())
|
||||
|
|
@ -395,6 +389,7 @@ static int sio_timeout;
|
|||
static int sio_timeouts_until_log;
|
||||
static struct callout_handle sio_timeout_handle
|
||||
= CALLOUT_HANDLE_INITIALIZER(&sio_timeout_handle);
|
||||
static int sio_numunits;
|
||||
|
||||
static struct speedtab comspeedtab[] = {
|
||||
{ 0, 0 },
|
||||
|
|
@ -484,11 +479,23 @@ sysctl_machdep_comdefaultrate SYSCTL_HANDLER_ARGS
|
|||
SYSCTL_PROC(_machdep, OID_AUTO, conspeed, CTLTYPE_INT | CTLFLAG_RW,
|
||||
0, 0, sysctl_machdep_comdefaultrate, "I", "");
|
||||
|
||||
#define SET_FLAG(dev, bit) device_set_flags(dev, device_get_flags(dev) | (bit))
|
||||
#define CLR_FLAG(dev, bit) device_set_flags(dev, device_get_flags(dev) & ~(bit))
|
||||
|
||||
#if NCARD > 0
|
||||
static int
|
||||
sio_pccard_probe(dev)
|
||||
device_t dev;
|
||||
{
|
||||
const char *name;
|
||||
|
||||
name = pccard_get_name(dev);
|
||||
if (strcmp(name, "sio"))
|
||||
return ENXIO;
|
||||
|
||||
/* Do not probe IRQ - pccardd has not arranged for it yet */
|
||||
SET_FLAG(dev, COM_C_NOPROBE);
|
||||
|
||||
return (sioprobe(dev));
|
||||
}
|
||||
|
||||
|
|
@ -539,8 +546,6 @@ sio_pccard_detach(dev)
|
|||
}
|
||||
#endif /* NCARD > 0 */
|
||||
|
||||
#define SET_FLAG(dev, bit) device_set_flags(dev, device_get_flags(dev) | (bit))
|
||||
#define CLR_FLAG(dev, bit) device_set_flags(dev, device_get_flags(dev) & ~(bit))
|
||||
|
||||
static struct isa_pnp_id sio_ids[] = {
|
||||
{0x0005d041, "Standard PC COM port"}, /* PNP0500 */
|
||||
|
|
@ -570,7 +575,10 @@ static int
|
|||
sioprobe(dev)
|
||||
device_t dev;
|
||||
{
|
||||
#if 0
|
||||
static bool_t already_init;
|
||||
device_t xdev;
|
||||
#endif
|
||||
bool_t failures[10];
|
||||
int fn;
|
||||
device_t idev;
|
||||
|
|
@ -579,7 +587,10 @@ sioprobe(dev)
|
|||
intrmask_t irqs;
|
||||
u_char mcr_image;
|
||||
int result;
|
||||
device_t xdev;
|
||||
#ifdef COM_MULTIPORT
|
||||
Port_t xiobase;
|
||||
#endif
|
||||
int xirq;
|
||||
u_int flags = device_get_flags(dev);
|
||||
int rid;
|
||||
struct resource *port;
|
||||
|
|
@ -590,6 +601,14 @@ sioprobe(dev)
|
|||
if (!port)
|
||||
return ENXIO;
|
||||
|
||||
#if 0
|
||||
/*
|
||||
* XXX this is broken - when we are first called, there are no
|
||||
* previously configured IO ports. We could hard code
|
||||
* 0x3f8, 0x2f8, 0x3e8, 0x2e8 etc but that's probably worse.
|
||||
* This code has been doing nothing since the conversion since
|
||||
* "count" is zero the first time around.
|
||||
*/
|
||||
if (!already_init) {
|
||||
/*
|
||||
* Turn off MCR_IENABLE for all likely serial ports. An unused
|
||||
|
|
@ -598,17 +617,19 @@ sioprobe(dev)
|
|||
* XXX the gate enable is elsewhere for some multiports.
|
||||
*/
|
||||
device_t *devs;
|
||||
int count, i;
|
||||
int count, i, xioport;
|
||||
|
||||
devclass_get_devices(sio_devclass, &devs, &count);
|
||||
for (i = 0; i < count; i++) {
|
||||
xdev = devs[i];
|
||||
if (device_is_enabled(xdev))
|
||||
outb(isa_get_port(xdev) + com_mcr, 0);
|
||||
xioport = bus_get_resource_start(xdev, SYS_RES_IOPORT, 0);
|
||||
if (device_is_enabled(xdev) && xioport > 0)
|
||||
outb(xioport + com_mcr, 0);
|
||||
}
|
||||
free(devs, M_TEMP);
|
||||
already_init = TRUE;
|
||||
}
|
||||
#endif
|
||||
|
||||
if (COM_LLCONSOLE(flags)) {
|
||||
printf("sio%d: reserved for low-level i/o\n",
|
||||
|
|
@ -627,21 +648,22 @@ sioprobe(dev)
|
|||
idev = dev;
|
||||
mcr_image = MCR_IENABLE;
|
||||
#ifdef COM_MULTIPORT
|
||||
if (COM_ISMULTIPORT(flags)) {
|
||||
if (COM_ISMULTIPORT(flags) && !COM_NOTAST4(flags)) {
|
||||
idev = devclass_get_device(sio_devclass, COM_MPMASTER(flags));
|
||||
if (idev == NULL) {
|
||||
printf("sio%d: master device %d not configured\n",
|
||||
device_get_unit(dev), COM_MPMASTER(flags));
|
||||
idev = dev;
|
||||
}
|
||||
if (!COM_NOTAST4(flags)) {
|
||||
outb(isa_get_port(idev) + com_scr,
|
||||
isa_get_irq(idev) >= 0 ? 0x80 : 0);
|
||||
mcr_image = 0;
|
||||
xiobase = bus_get_resource_start(idev, SYS_RES_IOPORT, 0);
|
||||
if (xiobase > 0) {
|
||||
xirq = bus_get_resource_start(idev, SYS_RES_IRQ, 0);
|
||||
outb(xiobase + com_scr, xirq >= 0 ? 0x80 : 0);
|
||||
}
|
||||
mcr_image = 0;
|
||||
}
|
||||
#endif /* COM_MULTIPORT */
|
||||
if (isa_get_irq(idev) < 0)
|
||||
if (bus_get_resource_start(idev, SYS_RES_IRQ, 0) <= 0)
|
||||
mcr_image = 0;
|
||||
|
||||
bzero(failures, sizeof failures);
|
||||
|
|
@ -726,31 +748,39 @@ sioprobe(dev)
|
|||
/*
|
||||
* Some pcmcia cards have the "TXRDY bug", so we check everyone
|
||||
* for IIR_TXRDY implementation ( Palido 321s, DC-1S... )
|
||||
* XXX Bruce, is this OK? XXX
|
||||
*/
|
||||
#if 0
|
||||
#if 1
|
||||
/* Reading IIR register twice */
|
||||
for ( fn = 0; fn < 2; fn ++ ) {
|
||||
for (fn = 0; fn < 2; fn ++) {
|
||||
DELAY(10000);
|
||||
failures[6] = inb(iobase + com_iir);
|
||||
}
|
||||
/* Check IIR_TXRDY clear ? */
|
||||
result = 0;
|
||||
if ( failures[6] & IIR_TXRDY ) {
|
||||
if (failures[6] & IIR_TXRDY) {
|
||||
/* Nop, Double check with clearing IER */
|
||||
outb(iobase + com_ier, 0);
|
||||
if ( inb(iobase + com_iir) & IIR_NOPEND ) {
|
||||
if (inb(iobase + com_iir) & IIR_NOPEND) {
|
||||
/* Ok. we're familia this gang */
|
||||
SET_FLAG(dev, COM_C_IIR_TXRDYBUG); /* Set IIR_TXRDYBUG */
|
||||
SET_FLAG(dev, COM_C_IIR_TXRDYBUG);
|
||||
} else {
|
||||
/* Unknown, Just omit this chip.. XXX */
|
||||
result = ENXIO;
|
||||
}
|
||||
} else {
|
||||
/* OK. this is well-known guys */
|
||||
CLR_FLAG(dev, COM_C_IIR_TXRDYBUG); /*Clear IIR_TXRDYBUG*/
|
||||
CLR_FLAG(dev, COM_C_IIR_TXRDYBUG);
|
||||
}
|
||||
#else
|
||||
result = 0;
|
||||
#endif
|
||||
if (COM_NOPROBE(flags)) {
|
||||
outb(iobase + com_cfcr, CFCR_8BITS);
|
||||
enable_intr();
|
||||
bus_release_resource(dev, SYS_RES_IOPORT, rid, port);
|
||||
return (iobase == siocniobase ? 0 : result);
|
||||
}
|
||||
|
||||
/*
|
||||
* Check that
|
||||
* o the CFCR, IER and MCR in UART hold the values written to them
|
||||
|
|
@ -789,10 +819,11 @@ sioprobe(dev)
|
|||
enable_intr();
|
||||
|
||||
irqs = irqmap[1] & ~irqmap[0];
|
||||
if (isa_get_irq(idev) >= 0 && ((1 << isa_get_irq(idev)) & irqs) == 0)
|
||||
xirq = bus_get_resource_start(idev, SYS_RES_IRQ, 0);
|
||||
if (xirq >= 0 && ((1 << xirq) & irqs) == 0)
|
||||
printf(
|
||||
"sio%d: configured irq %d not in bitmap of probed irqs %#x\n",
|
||||
device_get_unit(dev), isa_get_irq(idev), irqs);
|
||||
device_get_unit(dev), xirq, irqs);
|
||||
if (bootverbose)
|
||||
printf("sio%d: irq maps: %#x %#x %#x %#x\n",
|
||||
device_get_unit(dev),
|
||||
|
|
@ -898,11 +929,13 @@ sioattach(dev)
|
|||
Port_t *espp;
|
||||
#endif
|
||||
Port_t iobase;
|
||||
int irq;
|
||||
int unit;
|
||||
void *ih;
|
||||
u_int flags = device_get_flags(dev);
|
||||
u_int flags;
|
||||
int rid;
|
||||
struct resource *port;
|
||||
int ret;
|
||||
|
||||
rid = 0;
|
||||
port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
|
||||
|
|
@ -911,9 +944,13 @@ sioattach(dev)
|
|||
return ENXIO;
|
||||
|
||||
iobase = rman_get_start(port);
|
||||
irq = bus_get_resource_start(dev, SYS_RES_IRQ, 0);
|
||||
unit = device_get_unit(dev);
|
||||
com = device_get_softc(dev);
|
||||
flags = device_get_flags(dev);
|
||||
|
||||
if (unit >= sio_numunits)
|
||||
sio_numunits = unit + 1;
|
||||
/*
|
||||
* sioprobe() has initialized the device registers as follows:
|
||||
* o cfcr = CFCR_8BITS.
|
||||
|
|
@ -932,7 +969,7 @@ sioattach(dev)
|
|||
com->cfcr_image = CFCR_8BITS;
|
||||
com->dtr_wait = 3 * hz;
|
||||
com->loses_outints = COM_LOSESOUTINTS(flags) != 0;
|
||||
com->no_irq = isa_get_irq(dev) < 0;
|
||||
com->no_irq = irq < 0;
|
||||
com->tx_fifo_size = 1;
|
||||
com->obufs[0].l_head = com->obuf1;
|
||||
com->obufs[1].l_head = com->obuf2;
|
||||
|
|
@ -1076,19 +1113,23 @@ determined_type: ;
|
|||
|
||||
#ifdef COM_MULTIPORT
|
||||
if (COM_ISMULTIPORT(flags)) {
|
||||
device_t masterdev;
|
||||
int irq;
|
||||
|
||||
com->multiport = TRUE;
|
||||
printf(" (multiport");
|
||||
if (unit == COM_MPMASTER(flags))
|
||||
printf(" master");
|
||||
printf(")");
|
||||
com->no_irq =
|
||||
isa_get_irq(devclass_get_device
|
||||
(sio_devclass, COM_MPMASTER(flags))) < 0;
|
||||
masterdev = devclass_get_device(sio_devclass,
|
||||
COM_MPMASTER(flags));
|
||||
irq = bus_get_resource_start(masterdev, SYS_RES_IRQ, 0);
|
||||
com->no_irq = irq < 0;
|
||||
}
|
||||
#endif /* COM_MULTIPORT */
|
||||
if (unit == comconsole)
|
||||
printf(", console");
|
||||
if ( COM_IIR_TXRDYBUG(flags) )
|
||||
if (COM_IIR_TXRDYBUG(flags))
|
||||
printf(" with a bogus IIR_TXRDY register");
|
||||
printf("\n");
|
||||
|
||||
|
|
@ -1114,10 +1155,14 @@ determined_type: ;
|
|||
|
||||
rid = 0;
|
||||
com->irqres = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0ul, ~0ul, 1,
|
||||
RF_SHAREABLE | RF_ACTIVE);
|
||||
BUS_SETUP_INTR(device_get_parent(dev), dev, com->irqres,
|
||||
INTR_TYPE_TTY | INTR_TYPE_FAST,
|
||||
siointr, com, &ih);
|
||||
RF_ACTIVE);
|
||||
if (com->irqres) {
|
||||
ret = BUS_SETUP_INTR(device_get_parent(dev), dev, com->irqres,
|
||||
INTR_TYPE_TTY | INTR_TYPE_FAST,
|
||||
siointr, com, &ih);
|
||||
if (ret)
|
||||
device_printf(dev, "could not activate interrupt\n");
|
||||
}
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
|
@ -1139,7 +1184,8 @@ sioopen(dev, flag, mode, p)
|
|||
|
||||
mynor = minor(dev);
|
||||
unit = MINOR_TO_UNIT(mynor);
|
||||
if ((u_int) unit >= NSIOTOT || (com = com_addr(unit)) == NULL)
|
||||
com = com_addr(unit);
|
||||
if (com == NULL)
|
||||
return (ENXIO);
|
||||
if (com->gone)
|
||||
return (ENXIO);
|
||||
|
|
@ -1589,7 +1635,7 @@ siointr(arg)
|
|||
COM_LOCK();
|
||||
do {
|
||||
possibly_more_intrs = FALSE;
|
||||
for (unit = 0; unit < NSIOTOT; ++unit) {
|
||||
for (unit = 0; unit < sio_numunits; ++unit) {
|
||||
com = com_addr(unit);
|
||||
/*
|
||||
* XXX COM_LOCK();
|
||||
|
|
@ -1775,7 +1821,7 @@ if (com->iptr - com->ibuf == 8)
|
|||
com->obufq.l_next = qp;
|
||||
} else {
|
||||
/* output just completed */
|
||||
if ( COM_IIR_TXRDYBUG(com->flags) ) {
|
||||
if (COM_IIR_TXRDYBUG(com->flags)) {
|
||||
int_ctl_new = int_ctl & ~IER_ETXRDY;
|
||||
}
|
||||
com->state &= ~CS_BUSY;
|
||||
|
|
@ -1786,7 +1832,7 @@ if (com->iptr - com->ibuf == 8)
|
|||
setsofttty(); /* handle at high level ASAP */
|
||||
}
|
||||
}
|
||||
if ( COM_IIR_TXRDYBUG(com->flags) && (int_ctl != int_ctl_new)) {
|
||||
if (COM_IIR_TXRDYBUG(com->flags) && (int_ctl != int_ctl_new)) {
|
||||
outb(com->intr_ctl_port, int_ctl_new);
|
||||
}
|
||||
}
|
||||
|
|
@ -1966,7 +2012,7 @@ siopoll()
|
|||
if (com_events == 0)
|
||||
return;
|
||||
repeat:
|
||||
for (unit = 0; unit < NSIOTOT; ++unit) {
|
||||
for (unit = 0; unit < sio_numunits; ++unit) {
|
||||
struct com_s *com;
|
||||
int incc;
|
||||
struct tty *tp;
|
||||
|
|
@ -2475,7 +2521,7 @@ siosettimeout()
|
|||
untimeout(comwakeup, (void *)NULL, sio_timeout_handle);
|
||||
sio_timeout = hz;
|
||||
someopen = FALSE;
|
||||
for (unit = 0; unit < NSIOTOT; ++unit) {
|
||||
for (unit = 0; unit < sio_numunits; ++unit) {
|
||||
com = com_addr(unit);
|
||||
if (com != NULL && com->tp != NULL
|
||||
&& com->tp->t_state & TS_ISOPEN && !com->gone) {
|
||||
|
|
@ -2511,7 +2557,7 @@ comwakeup(chan)
|
|||
* Recover from lost output interrupts.
|
||||
* Poll any lines that don't use interrupts.
|
||||
*/
|
||||
for (unit = 0; unit < NSIOTOT; ++unit) {
|
||||
for (unit = 0; unit < sio_numunits; ++unit) {
|
||||
com = com_addr(unit);
|
||||
if (com != NULL && !com->gone
|
||||
&& (com->state >= (CS_BUSY | CS_TTGO) || com->poll)) {
|
||||
|
|
@ -2527,7 +2573,7 @@ comwakeup(chan)
|
|||
if (--sio_timeouts_until_log > 0)
|
||||
return;
|
||||
sio_timeouts_until_log = hz / sio_timeout;
|
||||
for (unit = 0; unit < NSIOTOT; ++unit) {
|
||||
for (unit = 0; unit < sio_numunits; ++unit) {
|
||||
int errnum;
|
||||
|
||||
com = com_addr(unit);
|
||||
|
|
@ -2651,7 +2697,7 @@ siocngetspeed(iobase, table)
|
|||
|
||||
code = dlbh << 8 | dlbl;
|
||||
|
||||
for ( ; table->sp_speed != -1; table++)
|
||||
for (; table->sp_speed != -1; table++)
|
||||
if (table->sp_code == code)
|
||||
return (table->sp_speed);
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue