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Added more verbose debugging output to uhci_run

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This commit is contained in:
Nick Hibma 1999-02-15 20:43:17 +00:00
parent 3d8befc22d
commit 48f79d0e5c
1 changed files with 26 additions and 2 deletions
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28
sys/dev/usb/uhci.c
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@ -324,8 +324,19 @@ uhci_init(sc)
UWRITE2(sc, UHCI_FRNUM, 0); /* set frame number to 0 */
UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&dma)); /* set frame list */
#ifdef USB_DEBUG
/* PR1 */
if ( UREAD4(sc, UHCI_FLBASEADDR) != DMAADDR(&dma) )
printf("PR1:before busreset: FLBASEADDR = 0x%08x != DMADDR(&dma) = 0x%08x\n",
UREAD4(sc, UHCI_FLBASEADDR), DMAADDR(&dma));
#endif
uhci_busreset(sc);
#ifdef USB_DEBUG
/* PR1 */
if ( UREAD4(sc, UHCI_FLBASEADDR) != DMAADDR(&dma) )
printf("PR1:after busreset: FLBASEADDR = 0x%08x != DMADDR(&dma) = 0x%08x\n",
UREAD4(sc, UHCI_FLBASEADDR), DMAADDR(&dma));
#endif
/* Allocate the dummy QH where bulk traffic will be queued. */
bsqh = uhci_alloc_sqh(sc);
if (!bsqh)
@ -391,7 +402,7 @@ static void
uhci_dumpregs(sc)
uhci_softc_t *sc;
{
printf("%s; regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, "
printf("%s: regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, "
"flbase=%08x, sof=%02x, portsc1=%04x, portsc2=%04x, "
"legsup=%04x\n",
USBDEVNAME(sc->sc_bus.bdev),
@ -937,11 +948,19 @@ uhci_run(sc, run)
int run;
{
int s, n, running;
#ifdef USB_DEBUG
printf("PR1:uhci_run:start: ");
uhci_dumpregs(sc);
#endif
s = splusb();
running = ((UREAD2(sc, UHCI_STS) & UHCI_STS_HCH) == 0);
if (run == running) {
splx(s);
#ifdef USB_DEBUG
printf("PR1:uhci_run:do_nothing: ");
uhci_dumpregs(sc);
#endif
return (USBD_NORMAL_COMPLETION);
}
UWRITE2(sc, UHCI_CMD, run ? UHCI_CMD_RS : 0);
@ -950,6 +969,10 @@ uhci_run(sc, run)
/* return when we've entered the state we want */
if (run == running) {
splx(s);
#ifdef USB_DEBUG
printf("PR1:uhci_run:succeed(%d): ", n);
uhci_dumpregs(sc);
#endif
return (USBD_NORMAL_COMPLETION);
}
usb_delay_ms(&sc->sc_bus, 1);
@ -958,6 +981,7 @@ uhci_run(sc, run)
printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev),
run ? "start" : "stop");
#ifdef USB_DEBUG
printf("PR1:uhci_run:fail: ");
uhci_dumpregs(sc);
#endif
return (USBD_IOERROR);