[ARM] IrDA support for e7xx
This patchset provides a fully functional SIR IrDA driver for the Toshiba
e7xx PDAs.
Signed-off-by: Ian Molton <spyro@f2s.com>
diff --git a/arch/arm/mach-pxa/e740.c b/arch/arm/mach-pxa/e740.c
index c57a15b..8675fd1 100644
--- a/arch/arm/mach-pxa/e740.c
+++ b/arch/arm/mach-pxa/e740.c
@@ -25,6 +25,7 @@
#include <mach/mfp-pxa25x.h>
#include <mach/hardware.h>
#include <mach/udc.h>
+#include <mach/irda.h>
#include "generic.h"
#include "eseries.h"
@@ -118,6 +119,9 @@
GPIO44_BTUART_CTS,
GPIO45_GPIO, /* Used by TMIO for #SUSPEND */
+ /* IrDA */
+ GPIO38_GPIO | MFP_LPM_DRIVE_HIGH,
+
/* PC Card */
GPIO8_GPIO, /* CD0 */
GPIO44_GPIO, /* CD1 */
@@ -153,6 +157,8 @@
pxa2xx_mfp_config(ARRAY_AND_SIZE(e740_pin_config));
platform_add_devices(devices, ARRAY_SIZE(devices));
pxa_set_udc_info(&e7xx_udc_mach_info);
+ e7xx_irda_init();
+ pxa_set_ficp_info(&e7xx_ficp_platform_data);
}
MACHINE_START(E740, "Toshiba e740")
diff --git a/arch/arm/mach-pxa/e750.c b/arch/arm/mach-pxa/e750.c
index 640e738..1410ad7 100644
--- a/arch/arm/mach-pxa/e750.c
+++ b/arch/arm/mach-pxa/e750.c
@@ -25,6 +25,7 @@
#include <mach/mfp-pxa25x.h>
#include <mach/hardware.h>
#include <mach/udc.h>
+#include <mach/irda.h>
#include "generic.h"
#include "eseries.h"
@@ -110,6 +111,8 @@
{
platform_add_devices(devices, ARRAY_SIZE(devices));
pxa_set_udc_info(&e7xx_udc_mach_info);
+ e7xx_irda_init();
+ pxa_set_ficp_info(&e7xx_ficp_platform_data);
}
MACHINE_START(E750, "Toshiba e750")
diff --git a/arch/arm/mach-pxa/eseries.c b/arch/arm/mach-pxa/eseries.c
index d28849b..ee79e33 100644
--- a/arch/arm/mach-pxa/eseries.c
+++ b/arch/arm/mach-pxa/eseries.c
@@ -12,6 +12,8 @@
#include <linux/kernel.h>
#include <linux/init.h>
+#include <linux/gpio.h>
+#include <linux/platform_device.h>
#include <asm/setup.h>
#include <asm/mach/arch.h>
@@ -21,6 +23,7 @@
#include <mach/hardware.h>
#include <mach/eseries-gpio.h>
#include <mach/udc.h>
+#include <mach/irda.h>
#include "generic.h"
@@ -43,3 +46,43 @@
.gpio_pullup_inverted = 1
};
+static void e7xx_irda_transceiver_mode(struct device *dev, int mode)
+{
+ if (mode & IR_OFF) {
+ gpio_set_value(GPIO_E7XX_IR_OFF, 1);
+ pxa2xx_transceiver_mode(dev, mode);
+ } else {
+ pxa2xx_transceiver_mode(dev, mode);
+ gpio_set_value(GPIO_E7XX_IR_OFF, 0);
+ }
+}
+
+int e7xx_irda_init(void)
+{
+ int ret;
+
+ ret = gpio_request(GPIO_E7XX_IR_OFF, "IrDA power");
+ if (ret)
+ goto out;
+
+ ret = gpio_direction_output(GPIO_E7XX_IR_OFF, 0);
+ if (ret)
+ goto out;
+
+ e7xx_irda_transceiver_mode(NULL, IR_SIRMODE | IR_OFF);
+out:
+ return ret;
+}
+
+static void e7xx_irda_shutdown(struct device *dev)
+{
+ e7xx_irda_transceiver_mode(dev, IR_SIRMODE | IR_OFF);
+ gpio_free(GPIO_E7XX_IR_OFF);
+}
+
+struct pxaficp_platform_data e7xx_ficp_platform_data = {
+ .transceiver_cap = IR_SIRMODE | IR_OFF,
+ .transceiver_mode = e7xx_irda_transceiver_mode,
+ .shutdown = e7xx_irda_shutdown,
+};
+
diff --git a/arch/arm/mach-pxa/eseries.h b/arch/arm/mach-pxa/eseries.h
index a83f88d..bcfc589 100644
--- a/arch/arm/mach-pxa/eseries.h
+++ b/arch/arm/mach-pxa/eseries.h
@@ -2,3 +2,6 @@
struct tag *tags, char **cmdline, struct meminfo *mi);
extern struct pxa2xx_udc_mach_info e7xx_udc_mach_info;
+extern struct pxaficp_platform_data e7xx_ficp_platform_data;
+extern int e7xx_irda_init(void);
+
diff --git a/arch/arm/mach-pxa/include/mach/eseries-gpio.h b/arch/arm/mach-pxa/include/mach/eseries-gpio.h
index 4c90b13..794bc33 100644
--- a/arch/arm/mach-pxa/include/mach/eseries-gpio.h
+++ b/arch/arm/mach-pxa/include/mach/eseries-gpio.h
@@ -43,7 +43,7 @@
#define GPIO_E800_PCMCIA_PWR1 73
/* e7xx IrDA power control */
-#define GPIO_E7XX_IR_ON 38
+#define GPIO_E7XX_IR_OFF 38
/* ASIC related GPIOs */
#define GPIO_ESERIES_TMIO_IRQ 5