Module Name:    src
Committed By:   pgoyette
Date:           Sat Dec 16 06:39:07 UTC 2017

Modified Files:
        src/sys/dev/pad: pad.c
        src/sys/modules/pad: Makefile
Added Files:
        src/sys/modules/pad: pad.ioconf

Log Message:
Use config(1) and IOCONF= to generate most of the auto-config data
structures.  (Note that bin/52823 documents the reasons for still
requiring hand-crafted cfattach structures.)


To generate a diff of this commit:
cvs rdiff -u -r1.47 -r1.48 src/sys/dev/pad/pad.c
cvs rdiff -u -r1.2 -r1.3 src/sys/modules/pad/Makefile
cvs rdiff -u -r0 -r1.1 src/sys/modules/pad/pad.ioconf

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/sys/dev/pad/pad.c
diff -u src/sys/dev/pad/pad.c:1.47 src/sys/dev/pad/pad.c:1.48
--- src/sys/dev/pad/pad.c:1.47	Sat Dec 16 02:45:14 2017
+++ src/sys/dev/pad/pad.c	Sat Dec 16 06:39:07 2017
@@ -1,4 +1,4 @@
-/* $NetBSD: pad.c,v 1.47 2017/12/16 02:45:14 pgoyette Exp $ */
+/* $NetBSD: pad.c,v 1.48 2017/12/16 06:39:07 pgoyette Exp $ */
 
 /*-
  * Copyright (c) 2007 Jared D. McNeill <jmcne...@invisible.ca>
@@ -27,7 +27,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: pad.c,v 1.47 2017/12/16 02:45:14 pgoyette Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pad.c,v 1.48 2017/12/16 06:39:07 pgoyette Exp $");
 
 #include <sys/types.h>
 #include <sys/param.h>
@@ -346,10 +346,11 @@ pad_open(dev_t dev, int flags, int fmt, 
 	cf->cf_unit = i;
 	cf->cf_fstate = FSTATE_STAR;
 
-	if (device_lookup(&pad_cd, minor(dev)) == NULL)
+	paddev = device_lookup(&pad_cd, minor(dev));
+	if (paddev == NULL)
 		paddev = config_attach_pseudo(cf);
-	else
-		paddev = device_lookup(&pad_cd, minor(dev));
+	if (paddev == NULL)
+		return ENXIO;
 
 	sc = device_private(paddev);
 	if (sc == NULL)
@@ -903,39 +904,18 @@ MODULE(MODULE_CLASS_DRIVER, pad, "audio"
 
 #ifdef _MODULE
 
-/* XXX These should really be created by config(1)'s IOCONF mechanism */
+#include "ioconf.c"
 
-static const struct cfiattrdata audiobuscf_iattrdata = {
-	"audiobus", 0, { { NULL, NULL, 0 }, }
-};
-static const struct cfiattrdata * const pad_attrs[] = {
-	&audiobuscf_iattrdata, NULL
-};
-
-CFDRIVER_DECL(pad, DV_DULL, pad_attrs);
-extern struct cfattach pad_ca;
-static int padloc[] = { -1, -1 };
-
-static struct cfdata pad_cfdata[] = {
-	{
-		.cf_name = "pad",
-		.cf_atname = "pad",
-		.cf_unit = 0,
-		.cf_fstate = FSTATE_STAR,
-		.cf_loc = padloc,
-		.cf_flags = 0,
-		.cf_pspec = NULL,
-	},
-	{ NULL, NULL, 0, 0, NULL, 0, NULL }
-};
+devmajor_t cmajor = NODEVMAJOR, bmajor = NODEVMAJOR;
 
-/* provide the vectors required for config_{init,fini}_component() */
-
-struct cfdriver * const pad_cfdriver[] = { &pad_cd, NULL };
+/*
+ * We need our own version of cfattach since config(1)'s ioconf does not
+ * generate what we need
+ */
 
-static struct cfattach * const pad_cfattachinit[] = { &pad_ca, NULL };
+static struct cfattach *pad_cfattachinit[] = { &pad_ca, NULL };
 
-static const struct cfattachinit pad_cfattach[] = {
+static struct cfattachinit pad_cfattach[] = {
 	{ "pad", pad_cfattachinit },
 	{ NULL, NULL }
 };
@@ -944,28 +924,25 @@ static const struct cfattachinit pad_cfa
 static int
 pad_modcmd(modcmd_t cmd, void *arg)
 {
-#ifdef _MODULE
-	devmajor_t cmajor = NODEVMAJOR, bmajor = NODEVMAJOR;
-#endif
 	int error = 0;
 
 	switch (cmd) {
 	case MODULE_CMD_INIT:
 #ifdef _MODULE
-		error = config_init_component(pad_cfdriver, pad_cfattach,
-		    pad_cfdata);
+		pad_cfattach[1] = cfattach_ioconf_pad[0];
+		error = config_init_component(cfdriver_ioconf_pad,
+		    pad_cfattach, cfdata_ioconf_pad);
 		if (error)
 			break;
 
 		error = devsw_attach(pad_cd.cd_name, NULL, &bmajor,
 			    &pad_cdevsw, &cmajor);
 		if (error) {
-			config_fini_component(pad_cfdriver, pad_cfattach,
-			    pad_cfdata);
+			config_fini_component(cfdriver_ioconf_pad,
+			    pad_cfattach, cfdata_ioconf_pad);
 			break;
 		}
 
-		(void)config_attach_pseudo(pad_cfdata);
 #endif
 		break;
 
@@ -975,8 +952,8 @@ pad_modcmd(modcmd_t cmd, void *arg)
 		if (error)
 			break;
 
-		error = config_fini_component(pad_cfdriver, pad_cfattach,
-		    pad_cfdata);
+		error = config_fini_component(cfdriver_ioconf_pad,
+		    pad_cfattach, cfdata_ioconf_pad);
 		if (error) {
 			error = devsw_attach(pad_cd.cd_name, NULL, &bmajor,
 			    &pad_cdevsw, &cmajor);

Index: src/sys/modules/pad/Makefile
diff -u src/sys/modules/pad/Makefile:1.2 src/sys/modules/pad/Makefile:1.3
--- src/sys/modules/pad/Makefile:1.2	Tue Nov 18 01:56:41 2014
+++ src/sys/modules/pad/Makefile	Sat Dec 16 06:39:07 2017
@@ -1,10 +1,11 @@
-# $NetBSD: Makefile,v 1.2 2014/11/18 01:56:41 jmcneill Exp $
+# $NetBSD: Makefile,v 1.3 2017/12/16 06:39:07 pgoyette Exp $
 
 .include "../Makefile.inc"
 
 .PATH:	${S}/dev/pad
 
 KMOD=   pad
+IOCONF=	pad.ioconf
 
 SRCS=	pad.c
 

Added files:

Index: src/sys/modules/pad/pad.ioconf
diff -u /dev/null src/sys/modules/pad/pad.ioconf:1.1
--- /dev/null	Sat Dec 16 06:39:07 2017
+++ src/sys/modules/pad/pad.ioconf	Sat Dec 16 06:39:07 2017
@@ -0,0 +1,7 @@
+# $NetBSD: pad.ioconf,v 1.1 2017/12/16 06:39:07 pgoyette Exp $
+
+ioconf pad
+
+include "conf/files"
+
+pseudo-device pad

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