----
- arch/arm/mach-ixp4xx/nas100d-power.c | 68 ++++++++++++++++++++++++++++++++--
- include/asm-arm/arch-ixp4xx/nas100d.h | 18 +++++----
- 2 files changed, 75 insertions(+), 11 deletions(-)
+Upgrade the power and reset button handling for the NAS100D:
+ * Convert GPIO and IRQ handling to use the <asm/gpio.h> api.
+ * Perform the reset only after the power button has been held down
+ for at least two seconds. Do the reset on the release of the power
+ button, so that NAS devices which have been set to auto-power-on (by
+ bridging the power button) do not continuously power cycle.
+ * Remove all superflous constants from nas100d.h
+ * Add LED constants to nas100d.h while we're there.
+Also, update the board LED setup code to use constants.
-Index: linux-2.6.22-rc5-armeb/arch/arm/mach-ixp4xx/nas100d-power.c
+Signed-off-by: Rod Whitby <rod@whitby.id.au>
+
+Index: linux-2.6.23.17/arch/arm/mach-ixp4xx/nas100d-power.c
===================================================================
---- linux-2.6.22-rc5-armeb.orig/arch/arm/mach-ixp4xx/nas100d-power.c
-+++ linux-2.6.22-rc5-armeb/arch/arm/mach-ixp4xx/nas100d-power.c
-@@ -21,15 +21,60 @@
+--- linux-2.6.23.17.orig/arch/arm/mach-ixp4xx/nas100d-power.c
++++ linux-2.6.23.17/arch/arm/mach-ixp4xx/nas100d-power.c
+@@ -21,15 +21,61 @@
#include <linux/irq.h>
#include <linux/module.h>
#include <linux/reboot.h>
+#include <linux/jiffies.h>
+#include <linux/timer.h>
++#include <asm/gpio.h>
#include <asm/mach-types.h>
-static irqreturn_t nas100d_reset_handler(int irq, void *dev_id)
*/
- ctrl_alt_del();
+
-+ if (*IXP4XX_GPIO_GPINR & NAS100D_PB_BM) {
++ if (gpio_get_value(NAS100D_PB_GPIO)) {
+
+ /* IO Pin is 1 (button pushed) */
+ if (power_button_countdown > 0) {
return IRQ_HANDLED;
}
-@@ -50,6 +95,19 @@
+@@ -39,17 +85,30 @@ static int __init nas100d_power_init(voi
+ if (!(machine_is_nas100d()))
+ return 0;
+
+- set_irq_type(NAS100D_RB_IRQ, IRQT_LOW);
++ set_irq_type(gpio_to_irq(NAS100D_RB_GPIO), IRQT_LOW);
+
+- if (request_irq(NAS100D_RB_IRQ, &nas100d_reset_handler,
++ if (request_irq(gpio_to_irq(NAS100D_RB_GPIO), &nas100d_reset_handler,
+ IRQF_DISABLED, "NAS100D reset button", NULL) < 0) {
+
+ printk(KERN_DEBUG "Reset Button IRQ %d not available\n",
+- NAS100D_RB_IRQ);
++ gpio_to_irq(NAS100D_RB_GPIO));
+
return -EIO;
}
return 0;
}
-@@ -58,6 +116,8 @@
+@@ -58,7 +117,9 @@ static void __exit nas100d_power_exit(vo
if (!(machine_is_nas100d()))
return;
+- free_irq(NAS100D_RB_IRQ, NULL);
+ del_timer_sync(&nas100d_power_timer);
+
- free_irq(NAS100D_RB_IRQ, NULL);
++ free_irq(gpio_to_irq(NAS100D_RB_GPIO), NULL);
}
-Index: linux-2.6.22-rc5-armeb/include/asm-arm/arch-ixp4xx/nas100d.h
+ module_init(nas100d_power_init);
+Index: linux-2.6.23.17/include/asm-arm/arch-ixp4xx/nas100d.h
===================================================================
---- linux-2.6.22-rc5-armeb.orig/include/asm-arm/arch-ixp4xx/nas100d.h
-+++ linux-2.6.22-rc5-armeb/include/asm-arm/arch-ixp4xx/nas100d.h
-@@ -39,14 +39,18 @@
+--- linux-2.6.23.17.orig/include/asm-arm/arch-ixp4xx/nas100d.h
++++ linux-2.6.23.17/include/asm-arm/arch-ixp4xx/nas100d.h
+@@ -38,15 +38,15 @@
+
/* Buttons */
- #define NAS100D_PB_GPIO 14
-+#define NAS100D_PB_BM (1L << NAS100D_PB_GPIO)
+-#define NAS100D_PB_GPIO 14
+-#define NAS100D_RB_GPIO 4
++#define NAS100D_PB_GPIO 14 /* power button */
++#define NAS100D_RB_GPIO 4 /* reset button */
++
++/* Power control */
+
- #define NAS100D_RB_GPIO 4
--#define NAS100D_PO_GPIO 12 /* power off */
+ #define NAS100D_PO_GPIO 12 /* power off */
-#define NAS100D_PB_IRQ IRQ_IXP4XX_GPIO14
- #define NAS100D_RB_IRQ IRQ_IXP4XX_GPIO4
+-#define NAS100D_RB_IRQ IRQ_IXP4XX_GPIO4
++/* LEDs */
-/*
-#define NAS100D_PB_BM (1L << NAS100D_PB_GPIO)
-#define NAS100D_PO_BM (1L << NAS100D_PO_GPIO)
-#define NAS100D_RB_BM (1L << NAS100D_RB_GPIO)
-*/
-+#define NAS100D_PO_GPIO 12 /* power off */
-+
-+/* LEDs */
-+
-+#define NAS100D_LED_PWR_GPIO 15
-+#define NAS100D_LED_PWR_BM (1L << NAS100D_LED_PWR_GPIO)
-+
+#define NAS100D_LED_WLAN_GPIO 0
-+#define NAS100D_LED_WLAN_BM (1L << NAS100D_LED_WLAN_GPIO)
++#define NAS100D_LED_DISK_GPIO 3
++#define NAS100D_LED_PWR_GPIO 15
+Index: linux-2.6.23.17/arch/arm/mach-ixp4xx/nas100d-setup.c
+===================================================================
+--- linux-2.6.23.17.orig/arch/arm/mach-ixp4xx/nas100d-setup.c
++++ linux-2.6.23.17/arch/arm/mach-ixp4xx/nas100d-setup.c
+@@ -42,20 +42,20 @@ static struct platform_device nas100d_fl
+ static struct resource nas100d_led_resources[] = {
+ {
+ .name = "wlan", /* green led */
+- .start = 0,
+- .end = 0,
++ .start = NAS100D_LED_WLAN_GPIO,
++ .end = NAS100D_LED_WLAN_GPIO,
+ .flags = IXP4XX_GPIO_LOW,
+ },
+ {
+- .name = "ready", /* blue power led (off is flashing!) */
+- .start = 15,
+- .end = 15,
++ .name = "power", /* blue power led (off is flashing!) */
++ .start = NAS100D_LED_PWR_GPIO,
++ .end = NAS100D_LED_PWR_GPIO,
+ .flags = IXP4XX_GPIO_LOW,
+ },
+ {
+ .name = "disk", /* yellow led */
+- .start = 3,
+- .end = 3,
++ .start = NAS100D_LED_DISK_GPIO,
++ .end = NAS100D_LED_DISK_GPIO,
+ .flags = IXP4XX_GPIO_LOW,
+ },
+ };
projects / openwrt.git / blobdiff