diff options
Diffstat (limited to 'target/linux/ixp4xx/patches-2.6.23/017-nas100d_auto_power_on.patch')
| -rw-r--r-- | target/linux/ixp4xx/patches-2.6.23/017-nas100d_auto_power_on.patch | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/target/linux/ixp4xx/patches-2.6.23/017-nas100d_auto_power_on.patch b/target/linux/ixp4xx/patches-2.6.23/017-nas100d_auto_power_on.patch new file mode 100644 index 000000000..232dd9a8c --- /dev/null +++ b/target/linux/ixp4xx/patches-2.6.23/017-nas100d_auto_power_on.patch @@ -0,0 +1,133 @@ +--- + arch/arm/mach-ixp4xx/nas100d-power.c | 68 ++++++++++++++++++++++++++++++++-- + include/asm-arm/arch-ixp4xx/nas100d.h | 18 +++++---- + 2 files changed, 75 insertions(+), 11 deletions(-) + +Index: linux-2.6.22-rc5-armeb/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 @@ + #include <linux/irq.h> + #include <linux/module.h> + #include <linux/reboot.h> ++#include <linux/jiffies.h> ++#include <linux/timer.h> + + #include <asm/mach-types.h> + +-static irqreturn_t nas100d_reset_handler(int irq, void *dev_id) ++extern void ctrl_alt_del(void); ++ ++/* This is used to make sure the power-button pusher is serious. The button ++ * must be held until the value of this counter reaches zero. ++ */ ++static volatile int power_button_countdown; ++ ++/* Must hold the button down for at least this many counts to be processed */ ++#define PBUTTON_HOLDDOWN_COUNT 4 /* 2 secs */ ++ ++static void nas100d_power_handler(unsigned long data); ++static DEFINE_TIMER(nas100d_power_timer, nas100d_power_handler, 0, 0); ++ ++static void nas100d_power_handler(unsigned long data) + { +- /* Signal init to do the ctrlaltdel action, this will bypass init if +- * it hasn't started and do a kernel_restart. ++ /* This routine is called twice per second to check the ++ * state of the power button. + */ +- ctrl_alt_del(); ++ ++ if (*IXP4XX_GPIO_GPINR & NAS100D_PB_BM) { ++ ++ /* IO Pin is 1 (button pushed) */ ++ if (power_button_countdown > 0) { ++ power_button_countdown--; ++ } ++ ++ } else { ++ ++ /* Done on button release, to allow for auto-power-on mods. */ ++ if (power_button_countdown == 0) { ++ /* Signal init to do the ctrlaltdel action, this will bypass ++ * init if it hasn't started and do a kernel_restart. ++ */ ++ ctrl_alt_del(); ++ ++ /* Change the state of the power LED to "blink" */ ++ gpio_line_set(NAS100D_LED_PWR_GPIO, IXP4XX_GPIO_LOW); ++ } else { ++ power_button_countdown = PBUTTON_HOLDDOWN_COUNT; ++ } ++ } ++ ++ mod_timer(&nas100d_power_timer, jiffies + msecs_to_jiffies(500)); ++} ++ ++static irqreturn_t nas100d_reset_handler(int irq, void *dev_id) ++{ ++ /* This is the paper-clip reset, it shuts the machine down directly. */ ++ machine_power_off(); + + return IRQ_HANDLED; + } +@@ -50,6 +95,19 @@ + return -EIO; + } + ++ /* The power button on the Iomega NAS100d is on GPIO 14, but ++ * it cannot handle interrupts on that GPIO line. So we'll ++ * have to poll it with a kernel timer. ++ */ ++ ++ /* Make sure that the power button GPIO is set up as an input */ ++ gpio_line_config(NAS100D_PB_GPIO, IXP4XX_GPIO_IN); ++ ++ /* Set the initial value for the power button IRQ handler */ ++ power_button_countdown = PBUTTON_HOLDDOWN_COUNT; ++ ++ mod_timer(&nas100d_power_timer, jiffies + msecs_to_jiffies(500)); ++ + return 0; + } + +@@ -58,6 +116,8 @@ + if (!(machine_is_nas100d())) + return; + ++ del_timer_sync(&nas100d_power_timer); ++ + free_irq(NAS100D_RB_IRQ, NULL); + } + +Index: linux-2.6.22-rc5-armeb/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 @@ + /* Buttons */ + + #define NAS100D_PB_GPIO 14 ++#define NAS100D_PB_BM (1L << NAS100D_PB_GPIO) ++ + #define NAS100D_RB_GPIO 4 +-#define NAS100D_PO_GPIO 12 /* power off */ + +-#define NAS100D_PB_IRQ IRQ_IXP4XX_GPIO14 + #define NAS100D_RB_IRQ IRQ_IXP4XX_GPIO4 + +-/* +-#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) |