patch-2.2.18 linux/drivers/usb/usb-uhci-debug.h

• Lines: 183
• Date: Fri Sep 1 13:51:30 2000
• Orig file: v2.2.17/drivers/usb/usb-uhci-debug.h
• Orig date: Thu Jan 1 01:00:00 1970

diff -u --new-file --recursive --exclude-from /usr/src/exclude v2.2.17/drivers/usb/usb-uhci-debug.h linux/drivers/usb/usb-uhci-debug.h
@@ -0,0 +1,182 @@
+#ifdef DEBUG
+static void uhci_show_qh (puhci_desc_t qh)
+{
+	if (qh->type != QH_TYPE) {
+		dbg("qh has not QH_TYPE");
+		return;
+	}
+	dbg("QH @ %p/%08lX:", qh, virt_to_bus (qh));
+
+	if (qh->hw.qh.head & UHCI_PTR_TERM)
+		dbg("    Head Terminate");
+	else 
+		dbg("    Head: %s @ %08X",
+		    (qh->hw.qh.head & UHCI_PTR_QH?"QH":"TD"),
+		    qh->hw.qh.head & ~UHCI_PTR_BITS);
+
+	if (qh->hw.qh.element & UHCI_PTR_TERM)
+		dbg("    Element Terminate");
+	else 
+		dbg("    Element: %s @ %08X",
+		    (qh->hw.qh.element & UHCI_PTR_QH?"QH":"TD"),
+		    qh->hw.qh.element & ~UHCI_PTR_BITS);
+}
+#endif
+
+static void uhci_show_td (puhci_desc_t td)
+{
+	char *spid;
+	
+	switch (td->hw.td.info & 0xff) {
+	case USB_PID_SETUP:
+		spid = "SETUP";
+		break;
+	case USB_PID_OUT:
+		spid = " OUT ";
+		break;
+	case USB_PID_IN:
+		spid = " IN  ";
+		break;
+	default:
+		spid = "  ?  ";
+		break;
+	}
+
+	warn("  TD @ %p/%08lX, MaxLen=%02x DT%d EP=%x Dev=%x PID=(%s) buf=%08x",
+	     td, virt_to_bus (td),
+	     td->hw.td.info >> 21,
+	     ((td->hw.td.info >> 19) & 1),
+	     (td->hw.td.info >> 15) & 15,
+	     (td->hw.td.info >> 8) & 127,
+	     spid,
+	     td->hw.td.buffer);
+
+	warn("    Len=%02x e%d %s%s%s%s%s%s%s%s%s%s",
+	     td->hw.td.status & 0x7ff,
+	     ((td->hw.td.status >> 27) & 3),
+	     (td->hw.td.status & TD_CTRL_SPD) ? "SPD " : "",
+	     (td->hw.td.status & TD_CTRL_LS) ? "LS " : "",
+	     (td->hw.td.status & TD_CTRL_IOC) ? "IOC " : "",
+	     (td->hw.td.status & TD_CTRL_ACTIVE) ? "Active " : "",
+	     (td->hw.td.status & TD_CTRL_STALLED) ? "Stalled " : "",
+	     (td->hw.td.status & TD_CTRL_DBUFERR) ? "DataBufErr " : "",
+	     (td->hw.td.status & TD_CTRL_BABBLE) ? "Babble " : "",
+	     (td->hw.td.status & TD_CTRL_NAK) ? "NAK " : "",
+	     (td->hw.td.status & TD_CTRL_CRCTIMEO) ? "CRC/Timeo " : "",
+	     (td->hw.td.status & TD_CTRL_BITSTUFF) ? "BitStuff " : ""
+		);
+
+	if (td->hw.td.link & UHCI_PTR_TERM)
+		warn("   TD Link Terminate");
+	else 
+		warn("    Link points to %s @ %08x, %s",
+		     (td->hw.td.link & UHCI_PTR_QH?"QH":"TD"),
+		     td->hw.td.link & ~UHCI_PTR_BITS,
+		     (td->hw.td.link & UHCI_PTR_DEPTH ? "Depth first" : "Breadth first"));
+}
+#ifdef DEBUG
+static void uhci_show_td_queue (puhci_desc_t td)
+{
+	//dbg("uhci_show_td_queue %p (%08lX):", td, virt_to_bus (td));
+	while (1) {
+		uhci_show_td (td);
+		if (td->hw.td.link & UHCI_PTR_TERM)
+			break;
+		if (td != bus_to_virt (td->hw.td.link & ~UHCI_PTR_BITS))
+			td = bus_to_virt (td->hw.td.link & ~UHCI_PTR_BITS);
+		else {
+			dbg("td points to itself!");
+			break;
+		}
+	}
+}
+
+static void uhci_show_queue (puhci_desc_t qh)
+{
+	uhci_desc_t *start_qh=qh;
+
+	dbg("uhci_show_queue %p:", qh);
+	while (1) {
+		uhci_show_qh (qh);
+
+		if (!(qh->hw.qh.element & UHCI_PTR_TERM))
+			uhci_show_td_queue (bus_to_virt (qh->hw.qh.element & ~UHCI_PTR_BITS));
+
+		if (qh->hw.qh.head & UHCI_PTR_TERM)
+			break;
+
+		if (qh != bus_to_virt (qh->hw.qh.head & ~UHCI_PTR_BITS))
+			qh = bus_to_virt (qh->hw.qh.head & ~UHCI_PTR_BITS);
+		else {
+			dbg("qh points to itself!");
+			break;
+		}
+		
+		if (qh==start_qh) { // avoid loop
+			dbg("Loop detect");
+			break;
+		}
+	}		
+}
+
+static void uhci_show_sc (int port, unsigned short status)
+{
+	dbg("  stat%d     =     %04x   %s%s%s%s%s%s%s%s",
+	     port,
+	     status,
+	     (status & USBPORTSC_SUSP) ? "PortSuspend " : "",
+	     (status & USBPORTSC_PR) ? "PortReset " : "",
+	     (status & USBPORTSC_LSDA) ? "LowSpeed " : "",
+	     (status & USBPORTSC_RD) ? "ResumeDetect " : "",
+	     (status & USBPORTSC_PEC) ? "EnableChange " : "",
+	     (status & USBPORTSC_PE) ? "PortEnabled " : "",
+	     (status & USBPORTSC_CSC) ? "ConnectChange " : "",
+	     (status & USBPORTSC_CCS) ? "PortConnected " : "");
+}
+
+void uhci_show_status (puhci_t s)
+{
+	unsigned int io_addr = s->io_addr;
+	unsigned short usbcmd, usbstat, usbint, usbfrnum;
+	unsigned int flbaseadd;
+	unsigned char sof;
+	unsigned short portsc1, portsc2;
+
+	usbcmd = inw (io_addr + 0);
+	usbstat = inw (io_addr + 2);
+	usbint = inw (io_addr + 4);
+	usbfrnum = inw (io_addr + 6);
+	flbaseadd = inl (io_addr + 8);
+	sof = inb (io_addr + 12);
+	portsc1 = inw (io_addr + 16);
+	portsc2 = inw (io_addr + 18);
+
+	dbg("  usbcmd    =     %04x   %s%s%s%s%s%s%s%s",
+	     usbcmd,
+	     (usbcmd & USBCMD_MAXP) ? "Maxp64 " : "Maxp32 ",
+	     (usbcmd & USBCMD_CF) ? "CF " : "",
+	     (usbcmd & USBCMD_SWDBG) ? "SWDBG " : "",
+	     (usbcmd & USBCMD_FGR) ? "FGR " : "",
+	     (usbcmd & USBCMD_EGSM) ? "EGSM " : "",
+	     (usbcmd & USBCMD_GRESET) ? "GRESET " : "",
+	     (usbcmd & USBCMD_HCRESET) ? "HCRESET " : "",
+	     (usbcmd & USBCMD_RS) ? "RS " : "");
+
+	dbg("  usbstat   =     %04x   %s%s%s%s%s%s",
+	     usbstat,
+	     (usbstat & USBSTS_HCH) ? "HCHalted " : "",
+	     (usbstat & USBSTS_HCPE) ? "HostControllerProcessError " : "",
+	     (usbstat & USBSTS_HSE) ? "HostSystemError " : "",
+	     (usbstat & USBSTS_RD) ? "ResumeDetect " : "",
+	     (usbstat & USBSTS_ERROR) ? "USBError " : "",
+	     (usbstat & USBSTS_USBINT) ? "USBINT " : "");
+
+	dbg("  usbint    =     %04x", usbint);
+	dbg("  usbfrnum  =   (%d)%03x", (usbfrnum >> 10) & 1,
+	     0xfff & (4 * (unsigned int) usbfrnum));
+	dbg("  flbaseadd = %08x", flbaseadd);
+	dbg("  sof       =       %02x", sof);
+	uhci_show_sc (1, portsc1);
+	uhci_show_sc (2, portsc2);
+}
+#endif