svn commit: r198373 - head/sys/dev/usb/input

[Andrew Thompson]

Author: thompsa
Date: Thu Oct 22 20:54:01 2009
New Revision: 198373
URL: http://svn.freebsd.org/changeset/base/198373

Log:
  Allow dumping the USB mouse reports via 'sysctl -b dev.ums.N.parseinfo',
  previously only available via bootverbose.
  
  PR:		usb/137191
  Submitted by:	Eygene Ryabinkin

Modified:
  head/sys/dev/usb/input/ums.c

Modified: head/sys/dev/usb/input/ums.c
==============================================================================
--- head/sys/dev/usb/input/ums.c	Thu Oct 22 20:44:55 2009	(r198372)
+++ head/sys/dev/usb/input/ums.c	Thu Oct 22 20:54:01 2009	(r198373)
@@ -63,6 +63,7 @@ __FBSDID("$FreeBSD$");
 #include <sys/priv.h>
 #include <sys/conf.h>
 #include <sys/fcntl.h>
+#include <sys/sbuf.h>
 
 #include <dev/usb/usb.h>
 #include <dev/usb/usbdi.h>
@@ -161,7 +162,9 @@ static usb_fifo_open_t ums_open;
 static usb_fifo_close_t ums_close;
 static usb_fifo_ioctl_t ums_ioctl;
 
-static void ums_put_queue(struct ums_softc *sc, int32_t dx, int32_t dy, int32_t dz, int32_t dt, int32_t buttons);
+static void	ums_put_queue(struct ums_softc *, int32_t, int32_t,
+		    int32_t, int32_t, int32_t);
+static int	ums_sysctl_handler_parseinfo(SYSCTL_HANDLER_ARGS);
 
 static struct usb_fifo_methods ums_fifo_methods = {
 	.f_open = &ums_open,
@@ -643,6 +646,12 @@ ums_attach(device_t dev)
 	if (err) {
 		goto detach;
 	}
+	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
+	    SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
+	    OID_AUTO, "parseinfo", CTLTYPE_STRING|CTLFLAG_RD,
+	    sc, 0, ums_sysctl_handler_parseinfo,
+	    "", "Dump UMS report parsing information");
+
 	return (0);
 
 detach:
@@ -916,6 +925,67 @@ done:
 	return (error);
 }
 
+static int
+ums_sysctl_handler_parseinfo(SYSCTL_HANDLER_ARGS)
+{
+	struct ums_softc *sc = arg1;
+	struct ums_info *info;
+	struct sbuf *sb;
+	int i, j, err;
+
+	sb = sbuf_new_auto();
+	for (i = 0; i < UMS_INFO_MAX; i++) {
+		info = &sc->sc_info[i];
+
+		/* Don't emit empty info */
+		if ((info->sc_flags &
+		    (UMS_FLAG_X_AXIS | UMS_FLAG_Y_AXIS | UMS_FLAG_Z_AXIS |
+		     UMS_FLAG_T_AXIS | UMS_FLAG_W_AXIS)) == 0 &&
+		    info->sc_buttons == 0)
+			continue;
+
+		sbuf_printf(sb, "i%d:", i + 1);
+		if (info->sc_flags & UMS_FLAG_X_AXIS)
+			sbuf_printf(sb, " X:r%d, p%d, s%d;",
+			    (int)info->sc_iid_x,
+			    (int)info->sc_loc_x.pos,
+			    (int)info->sc_loc_x.size);
+		if (info->sc_flags & UMS_FLAG_Y_AXIS)
+			sbuf_printf(sb, " Y:r%d, p%d, s%d;",
+			    (int)info->sc_iid_y,
+			    (int)info->sc_loc_y.pos,
+			    (int)info->sc_loc_y.size);
+		if (info->sc_flags & UMS_FLAG_Z_AXIS)
+			sbuf_printf(sb, " Z:r%d, p%d, s%d;",
+			    (int)info->sc_iid_z,
+			    (int)info->sc_loc_z.pos,
+			    (int)info->sc_loc_z.size);
+		if (info->sc_flags & UMS_FLAG_T_AXIS)
+			sbuf_printf(sb, " T:r%d, p%d, s%d;",
+			    (int)info->sc_iid_t,
+			    (int)info->sc_loc_t.pos,
+			    (int)info->sc_loc_t.size);
+		if (info->sc_flags & UMS_FLAG_W_AXIS)
+			sbuf_printf(sb, " W:r%d, p%d, s%d;",
+			    (int)info->sc_iid_w,
+			    (int)info->sc_loc_w.pos,
+			    (int)info->sc_loc_w.size);
+
+		for (j = 0; j < info->sc_buttons; j++) {
+			sbuf_printf(sb, " B%d:r%d, p%d, s%d;", j + 1,
+			    (int)info->sc_iid_btn[j],
+			    (int)info->sc_loc_btn[j].pos,
+			    (int)info->sc_loc_btn[j].size);
+		}
+		sbuf_printf(sb, "\n");
+	}
+	sbuf_finish(sb);
+	err = SYSCTL_OUT(req, sbuf_data(sb), sbuf_len(sb) + 1);
+	sbuf_delete(sb);
+
+	return (err);
+}
+
 static devclass_t ums_devclass;
 
 static device_method_t ums_methods[] = {