patch-2.4.19 linux-2.4.19/drivers/usb/hcd/ehci-dbg.c

• Lines: 180
• Date: Fri Aug 2 17:39:44 2002
• Orig file: linux-2.4.18/drivers/usb/hcd/ehci-dbg.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -urN linux-2.4.18/drivers/usb/hcd/ehci-dbg.c linux-2.4.19/drivers/usb/hcd/ehci-dbg.c
@@ -0,0 +1,179 @@
+/*
+ * Copyright (c) 2001 by David Brownell
+ * 
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/* this file is part of ehci-hcd.c */
+
+#ifdef EHCI_VERBOSE_DEBUG
+#	define vdbg dbg
+#else
+	static inline void vdbg (char *fmt, ...) { }
+#endif
+
+#ifdef	DEBUG
+
+/* check the values in the HCSPARAMS register - host controller structural parameters */
+/* see EHCI 0.95 Spec, Table 2-4 for each value */
+static void dbg_hcs_params (struct ehci_hcd *ehci, char *label)
+{
+	u32	params = readl (&ehci->caps->hcs_params);
+
+	dbg ("%s hcs_params 0x%x dbg=%d%s cc=%d pcc=%d%s%s ports=%d",
+		label, params,
+		HCS_DEBUG_PORT (params),
+		HCS_INDICATOR (params) ? " ind" : "",
+		HCS_N_CC (params),
+		HCS_N_PCC (params),
+	        HCS_PORTROUTED (params) ? "" : " ordered",
+		HCS_PPC (params) ? "" : " !ppc",
+		HCS_N_PORTS (params)
+		);
+	/* Port routing, per EHCI 0.95 Spec, Section 2.2.5 */
+	if (HCS_PORTROUTED (params)) {
+		int i;
+		char buf [46], tmp [7], byte;
+
+		buf[0] = 0;
+		for (i = 0; i < HCS_N_PORTS (params); i++) {
+			byte = readb (&ehci->caps->portroute[(i>>1)]);
+			sprintf(tmp, "%d ", 
+				((i & 0x1) ? ((byte)&0xf) : ((byte>>4)&0xf)));
+			strcat(buf, tmp);
+		}
+		dbg ("%s: %s portroute %s", 
+			ehci->hcd.bus_name, label,
+			buf);
+	}
+}
+#else
+
+static inline void dbg_hcs_params (struct ehci_hcd *ehci, char *label) {}
+
+#endif
+
+#ifdef	DEBUG
+
+/* check the values in the HCCPARAMS register - host controller capability parameters */
+/* see EHCI 0.95 Spec, Table 2-5 for each value */
+static void dbg_hcc_params (struct ehci_hcd *ehci, char *label)
+{
+	u32	params = readl (&ehci->caps->hcc_params);
+
+	if (HCC_EXT_CAPS (params)) {
+		// EHCI 0.96 ... could interpret these (legacy?)
+		dbg ("%s extended capabilities at pci %d",
+			label, HCC_EXT_CAPS (params));
+	}
+	if (HCC_ISOC_CACHE (params)) {
+		dbg ("%s hcc_params 0x%04x caching frame %s%s%s",
+		     label, params,
+		     HCC_PGM_FRAMELISTLEN (params) ? "256/512/1024" : "1024",
+		     HCC_CANPARK (params) ? " park" : "",
+		     HCC_64BIT_ADDR (params) ? " 64 bit addr" : "");
+	} else {
+		dbg ("%s hcc_params 0x%04x caching %d uframes %s%s%s",
+		     label,
+		     params,
+		     HCC_ISOC_THRES (params),
+		     HCC_PGM_FRAMELISTLEN (params) ? "256/512/1024" : "1024",
+		     HCC_CANPARK (params) ? " park" : "",
+		     HCC_64BIT_ADDR (params) ? " 64 bit addr" : "");
+	}
+}
+#else
+
+static inline void dbg_hcc_params (struct ehci_hcd *ehci, char *label) {}
+
+#endif
+
+#ifdef	DEBUG
+
+#if 0
+static void dbg_qh (char *label, struct ehci_hcd *ehci, struct ehci_qh *qh)
+{
+	dbg ("%s %p info1 %x info2 %x hw_curr %x qtd_next %x", label,
+		qh, qh->hw_info1, qh->hw_info2,
+		qh->hw_current, qh->hw_qtd_next);
+	dbg ("  alt+errs= %x, token= %x, page0= %x, page1= %x",
+		qh->hw_alt_next, qh->hw_token,
+		qh->hw_buf [0], qh->hw_buf [1]);
+	if (qh->hw_buf [2]) {
+		dbg ("  page2= %x, page3= %x, page4= %x",
+			qh->hw_buf [2], qh->hw_buf [3],
+			qh->hw_buf [4]);
+	}
+}
+#endif
+
+static const char *const fls_strings [] =
+    { "1024", "512", "256", "??" };
+
+#else
+#if 0
+static inline void dbg_qh (char *label, struct ehci_hcd *ehci, struct ehci_qh *qh) {}
+#endif
+#endif	/* DEBUG */
+
+/* functions have the "wrong" filename when they're output... */
+
+#define dbg_status(ehci, label, status) \
+	dbg ("%s status 0x%x%s%s%s%s%s%s%s%s%s%s", \
+		label, status, \
+		(status & STS_ASS) ? " Async" : "", \
+		(status & STS_PSS) ? " Periodic" : "", \
+		(status & STS_RECL) ? " Recl" : "", \
+		(status & STS_HALT) ? " Halt" : "", \
+		(status & STS_IAA) ? " IAA" : "", \
+		(status & STS_FATAL) ? " FATAL" : "", \
+		(status & STS_FLR) ? " FLR" : "", \
+		(status & STS_PCD) ? " PCD" : "", \
+		(status & STS_ERR) ? " ERR" : "", \
+		(status & STS_INT) ? " INT" : "" \
+		)
+
+#define dbg_cmd(ehci, label, command) \
+	dbg ("%s %x cmd %s=%d ithresh=%d%s%s%s%s period=%s%s %s", \
+		label, command, \
+		(command & CMD_PARK) ? "park" : "(park)", \
+		CMD_PARK_CNT (command), \
+		(command >> 16) & 0x3f, \
+		(command & CMD_LRESET) ? " LReset" : "", \
+		(command & CMD_IAAD) ? " IAAD" : "", \
+		(command & CMD_ASE) ? " Async" : "", \
+		(command & CMD_PSE) ? " Periodic" : "", \
+		fls_strings [(command >> 2) & 0x3], \
+		(command & CMD_RESET) ? " Reset" : "", \
+		(command & CMD_RUN) ? "RUN" : "HALT" \
+		)
+
+#define dbg_port(hcd, label, port, status) \
+	dbg ("%s port %d status 0x%x%s%s speed=%d%s%s%s%s%s%s%s%s%s", \
+		label, port, status, \
+		(status & PORT_OWNER) ? " OWNER" : "", \
+		(status & PORT_POWER) ? " POWER" : "", \
+		(status >> 10) & 3, \
+		(status & PORT_RESET) ? " RESET" : "", \
+		(status & PORT_SUSPEND) ? " SUSPEND" : "", \
+		(status & PORT_RESUME) ? " RESUME" : "", \
+		(status & PORT_OCC) ? " OCC" : "", \
+		(status & PORT_OC) ? " OC" : "", \
+		(status & PORT_PEC) ? " PEC" : "", \
+		(status & PORT_PE) ? " PE" : "", \
+		(status & PORT_CSC) ? " CSC" : "", \
+		(status & PORT_CONNECT) ? " CONNECT" : "" \
+	    )
+