[Zrouter-src-freebsd] ZRouter.org: push to FreeBSD HEAD tree

[zrouter-src-freebsd at zrouter.org]

details:   http://zrouter.org/hg/FreeBSD/head//rev/135feddfa0e3
changeset: 458:135feddfa0e3
user:      Aleksandr Rybalko <ray at ddteam.net>
date:      Wed Apr 18 17:08:03 2012 +0300
description:
Update debugability.

diffstat:

 head/sys/mips/atheros/ar71xx_spi.c |  41 ++++++++++++++++++++++++++++++++++++-
 1 files changed, 39 insertions(+), 2 deletions(-)

diffs (101 lines):

diff -r 5df8a434490a -r 135feddfa0e3 head/sys/mips/atheros/ar71xx_spi.c
--- a/head/sys/mips/atheros/ar71xx_spi.c	Wed Apr 18 11:09:04 2012 +0300
+++ b/head/sys/mips/atheros/ar71xx_spi.c	Wed Apr 18 17:08:03 2012 +0300
@@ -37,6 +37,7 @@
 #include <sys/kernel.h>
 #include <sys/module.h>
 #include <sys/rman.h>
+#include <sys/sysctl.h>
 
 #include <vm/vm.h>
 #include <vm/pmap.h>
@@ -78,8 +79,25 @@
 	device_t		sc_dev;
 	struct resource		*sc_mem_res;
 	uint32_t		sc_reg_ctrl;
+	uint32_t		sc_debug;
 };
 
+static void
+ar71xx_spi_attach_sysctl(device_t dev)
+{
+	struct ar71xx_spi_softc *sc = device_get_softc(dev);
+	struct sysctl_ctx_list *ctx;
+	struct sysctl_oid *tree;
+
+	sc = device_get_softc(dev);
+	ctx = device_get_sysctl_ctx(dev);
+	tree = device_get_sysctl_tree(dev);
+
+	SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
+		"debug", CTLFLAG_RW, &sc->sc_debug, 0,
+		"ar71xx_spi debugging flags");
+}
+
 static int
 ar71xx_spi_probe(device_t dev)
 {
@@ -109,6 +127,8 @@
 	SPI_WRITE(sc, AR71XX_SPI_FS, 0);
 
 	device_add_child(dev, "spibus", 0);
+	ar71xx_spi_attach_sysctl(dev);
+
 	return (bus_generic_attach(dev));
 }
 
@@ -173,6 +193,9 @@
 
 	sc = device_get_softc(dev);
 
+	if (sc->sc_debug & 0x8000)
+		printf("ar71xx_spi_transfer: CMD ");
+
 	/* Open SPI controller interface */
 	SPI_WRITE(sc, AR71XX_SPI_FS, 1);
 	ar71xx_spi_chip_activate(sc, devi->cs);
@@ -186,11 +209,18 @@
 	lin = cmd->rx_cmd_sz;
 	len = (lout > lin)?lout:lin;
 	for (i = 0; i < len; i++) {
+		if (sc->sc_debug & 0x8000)
+			printf("O%02x", (lout > i)?buf_out[i]:0);
 		in = ar71xx_spi_txrx(sc, devi->cs, (lout > i)?buf_out[i]:0);
-		if (lin > i)
+		if (lin > i) {
 			buf_in[i] = in;
+			if (sc->sc_debug & 0x8000)
+				printf("I%02x ", in);
+		}
 	}
 
+	if (sc->sc_debug & 0x8000)
+		printf("\nDATA ");
 	/*
 	 * Receive/transmit data (depends on  command)
 	 */
@@ -200,9 +230,14 @@
 	lin = cmd->rx_data_sz;
 	len = (lout > lin)?lout:lin;
 	for (i = 0; i < len; i++) {
+		if (sc->sc_debug & 0x8000)
+			printf("O%02x", (lout > i)?buf_out[i]:0);
 		in = ar71xx_spi_txrx(sc, devi->cs, (lout > i)?buf_out[i]:0);
-		if (lin > i)
+		if (lin > i) {
 			buf_in[i] = in;
+			if (sc->sc_debug & 0x8000)
+				printf("I%02x ", in);
+		}
 	}
 
 	ar71xx_spi_chip_deactivate(sc, devi->cs);
@@ -210,6 +245,8 @@
 	 * Close SPI controller interface, restore flash memory mapped access.
 	 */
 	SPI_WRITE(sc, AR71XX_SPI_FS, 0);
+	if (sc->sc_debug & 0x8000)
+		printf("\n");
 
 	return (0);
 }