diff options
| author | Bjoern A. Zeeb <bz@FreeBSD.org> | 2022-07-02 21:10:00 +0000 |
|---|---|---|
| committer | Bjoern A. Zeeb <bz@FreeBSD.org> | 2022-07-03 22:19:40 +0000 |
| commit | 11a7d5e5d906f691558e06d4bb93b892de31b446 (patch) | |
| tree | a5409649eec378749344a5a6890b6f85f5494317 | |
| parent | 09cdf4878c621be4cd229fa88cdccdcdc8c101f7 (diff) | |
dwc3: improve debugging
Rather than hiding behind #if 0, hide the debugging behind DWC3_DEBUG
so it can be turned on with a single define. Require bootverbose
to print anything so we can still avoid spamming the console if DWC3_DEBUG
is on.
Harmonize the format string in snsp_dwc3_dump_regs() to always print the
full register and also print the XHCI quirks.
Call snsp_dwc3_dump_regs() twice, before and after generic XHCI attachment
and initialisation as this may have an effect on the confirgumation state.
Obtained from: an old debug patch
MFC after: 2 weeks
Reviewed by: mw
Differential Revision: https://reviews.freebsd.org/D35700
| -rw-r--r-- | sys/dev/usb/controller/dwc3.c | 33 |
1 files changed, 24 insertions, 9 deletions
diff --git a/sys/dev/usb/controller/dwc3.c b/sys/dev/usb/controller/dwc3.c index 4b5109291cc4..da64512af647 100644 --- a/sys/dev/usb/controller/dwc3.c +++ b/sys/dev/usb/controller/dwc3.c @@ -147,22 +147,33 @@ snps_dwc3_attach_xhci(device_t dev) return (0); } -#if 0 +#ifdef DWC3_DEBUG static void -snsp_dwc3_dump_regs(struct snps_dwc3_softc *sc) +snsp_dwc3_dump_regs(struct snps_dwc3_softc *sc, const char *msg) { + struct xhci_softc *xsc; uint32_t reg; + if (!bootverbose) + return; + + device_printf(sc->dev, "%s: %s:\n", __func__, msg ? msg : ""); + reg = DWC3_READ(sc, DWC3_GCTL); - device_printf(sc->dev, "GCTL: %x\n", reg); + device_printf(sc->dev, "GCTL: %#012x\n", reg); + reg = DWC3_READ(sc, DWC3_GUCTL); + device_printf(sc->dev, "GUCTL: %#012x\n", reg); reg = DWC3_READ(sc, DWC3_GUCTL1); - device_printf(sc->dev, "GUCTL1: %x\n", reg); + device_printf(sc->dev, "GUCTL1: %#012x\n", reg); reg = DWC3_READ(sc, DWC3_GUSB2PHYCFG0); - device_printf(sc->dev, "GUSB2PHYCFG0: %x\n", reg); + device_printf(sc->dev, "GUSB2PHYCFG0: %#012x\n", reg); reg = DWC3_READ(sc, DWC3_GUSB3PIPECTL0); - device_printf(sc->dev, "GUSB3PIPECTL0: %x\n", reg); + device_printf(sc->dev, "GUSB3PIPECTL0: %#012x\n", reg); reg = DWC3_READ(sc, DWC3_DCFG); - device_printf(sc->dev, "DCFG: %x\n", reg); + device_printf(sc->dev, "DCFG: %#012x\n", reg); + + xsc = &sc->sc; + device_printf(sc->dev, "xhci quirks: %#012x\n", xsc->sc_quirks); } #endif @@ -384,10 +395,14 @@ snps_dwc3_attach(device_t dev) snps_dwc3_configure_host(sc); snps_dwc3_configure_phy(sc); snps_dwc3_do_quirks(sc); -#if 0 - snsp_dwc3_dump_regs(sc); + +#ifdef DWC3_DEBUG + snsp_dwc3_dump_regs(sc, "Pre XHCI init"); #endif snps_dwc3_attach_xhci(dev); +#ifdef DWC3_DEBUG + snsp_dwc3_dump_regs(sc, "Post XHCI init"); +#endif return (0); } |