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authorDmitry Baryshkov <dbaryshkov@gmail.com>2008-07-02 16:53:45 +0400
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-07-09 23:56:28 +0400
commit918dbcba4ee3f0ad7d617b3969d5016481b9ceff (patch)
treed86bc8e0a92f97631b0fd9c5b2543853dcaceaa9 /arch/arm/mach-pxa/pxa2xx.c
parent330ff197fcdc83ba151960d78294fb37777ebe12 (diff)
downloadlinux-918dbcba4ee3f0ad7d617b3969d5016481b9ceff.tar.xz
[ARM] 5145/1: PXA2xx: provide api to control IrDA pins state
Provide a set of functions to control state of pins dedicated to IrDA. Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-pxa/pxa2xx.c')
-rw-r--r--arch/arm/mach-pxa/pxa2xx.c46
1 files changed, 46 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/pxa2xx.c b/arch/arm/mach-pxa/pxa2xx.c
new file mode 100644
index 000000000000..d4f6415e8413
--- /dev/null
+++ b/arch/arm/mach-pxa/pxa2xx.c
@@ -0,0 +1,46 @@
+/*
+ * linux/arch/arm/mach-pxa/pxa2xx.c
+ *
+ * code specific to pxa2xx
+ *
+ * Copyright (C) 2008 Dmitry Baryshkov
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
+
+#include <asm/arch/mfp-pxa2xx.h>
+#include <asm/arch/mfp-pxa25x.h>
+#include <asm/arch/irda.h>
+
+static unsigned long pxa2xx_mfp_fir[] = {
+ GPIO46_FICP_RXD,
+ GPIO47_FICP_TXD,
+};
+
+static unsigned long pxa2xx_mfp_sir[] = {
+ GPIO46_STUART_RXD,
+ GPIO47_STUART_TXD,
+};
+
+static unsigned long pxa2xx_mfp_off[] = {
+ GPIO46_GPIO | MFP_LPM_DRIVE_LOW,
+ GPIO47_GPIO | MFP_LPM_DRIVE_LOW,
+};
+
+void pxa2xx_transceiver_mode(struct device *dev, int mode)
+{
+ if (mode & IR_OFF) {
+ pxa2xx_mfp_config(pxa2xx_mfp_off, ARRAY_SIZE(pxa2xx_mfp_off));
+ } else if (mode & IR_SIRMODE) {
+ pxa2xx_mfp_config(pxa2xx_mfp_sir, ARRAY_SIZE(pxa2xx_mfp_sir));
+ } else if (mode & IR_FIRMODE) {
+ pxa2xx_mfp_config(pxa2xx_mfp_fir, ARRAY_SIZE(pxa2xx_mfp_fir));
+ } else
+ BUG();
+}