From owner-svn-src-head@freebsd.org  Tue Apr 19 14:18:13 2016
Return-Path: <owner-svn-src-head@freebsd.org>
Delivered-To: svn-src-head@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id 7EEA5B13670;
 Tue, 19 Apr 2016 14:18:13 +0000 (UTC) (envelope-from br@FreeBSD.org)
Received: from repo.freebsd.org (repo.freebsd.org
 [IPv6:2610:1c1:1:6068::e6a:0])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client did not present a certificate)
 by mx1.freebsd.org (Postfix) with ESMTPS id 2F17416BE;
 Tue, 19 Apr 2016 14:18:13 +0000 (UTC) (envelope-from br@FreeBSD.org)
Received: from repo.freebsd.org ([127.0.1.37])
 by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id u3JEICIC023256;
 Tue, 19 Apr 2016 14:18:12 GMT (envelope-from br@FreeBSD.org)
Received: (from br@localhost)
 by repo.freebsd.org (8.15.2/8.15.2/Submit) id u3JEICrY023254;
 Tue, 19 Apr 2016 14:18:12 GMT (envelope-from br@FreeBSD.org)
Message-Id: <201604191418.u3JEICrY023254@repo.freebsd.org>
X-Authentication-Warning: repo.freebsd.org: br set sender to br@FreeBSD.org
 using -f
From: Ruslan Bukin <br@FreeBSD.org>
Date: Tue, 19 Apr 2016 14:18:12 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
 svn-src-head@freebsd.org
Subject: svn commit: r298268 - head/sys/dev/spibus
X-SVN-Group: head
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
X-BeenThere: svn-src-head@freebsd.org
X-Mailman-Version: 2.1.21
Precedence: list
List-Id: SVN commit messages for the src tree for head/-current
 <svn-src-head.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/svn-src-head>,
 <mailto:svn-src-head-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-head/>
List-Post: <mailto:svn-src-head@freebsd.org>
List-Help: <mailto:svn-src-head-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/svn-src-head>,
 <mailto:svn-src-head-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 19 Apr 2016 14:18:13 -0000

Author: br
Date: Tue Apr 19 14:18:12 2016
New Revision: 298268
URL: https://svnweb.freebsd.org/changeset/base/298268

Log:
  Add optional chip_select/deselect methods. This is required
  when we want to keep CS asserted for multiple transfers.

Modified:
  head/sys/dev/spibus/spibus.c
  head/sys/dev/spibus/spibus_if.m

Modified: head/sys/dev/spibus/spibus.c
==============================================================================
--- head/sys/dev/spibus/spibus.c	Tue Apr 19 13:36:31 2016	(r298267)
+++ head/sys/dev/spibus/spibus.c	Tue Apr 19 14:18:12 2016	(r298268)
@@ -185,9 +185,24 @@ spibus_hinted_child(device_t bus, const 
 static int
 spibus_transfer_impl(device_t dev, device_t child, struct spi_command *cmd)
 {
+
 	return (SPIBUS_TRANSFER(device_get_parent(dev), child, cmd));
 }
 
+static int
+spibus_chip_select_impl(device_t dev, device_t child)
+{
+
+	return (SPIBUS_CHIP_SELECT(device_get_parent(dev), child));
+}
+
+static int
+spibus_chip_deselect_impl(device_t dev, device_t child)
+{
+
+	return (SPIBUS_CHIP_DESELECT(device_get_parent(dev), child));
+}
+
 static device_method_t spibus_methods[] = {
 	/* Device interface */
 	DEVMETHOD(device_probe,		spibus_probe),
@@ -208,6 +223,8 @@ static device_method_t spibus_methods[] 
 
 	/* spibus interface */
 	DEVMETHOD(spibus_transfer,	spibus_transfer_impl),
+	DEVMETHOD(spibus_chip_select,	spibus_chip_select_impl),
+	DEVMETHOD(spibus_chip_deselect,	spibus_chip_deselect_impl),
 
 	DEVMETHOD_END
 };

Modified: head/sys/dev/spibus/spibus_if.m
==============================================================================
--- head/sys/dev/spibus/spibus_if.m	Tue Apr 19 13:36:31 2016	(r298267)
+++ head/sys/dev/spibus/spibus_if.m	Tue Apr 19 14:18:12 2016	(r298268)
@@ -39,3 +39,19 @@ METHOD int transfer {
 	device_t child;
 	struct spi_command *cmd;
 };
+
+#
+# Assert chip select
+#
+METHOD int chip_select {
+	device_t dev;
+	device_t child;
+};
+
+#
+# Deassert chip select
+#
+METHOD int chip_deselect {
+	device_t dev;
+	device_t child;
+};