diff options
Diffstat (limited to 'packages/linux/nslu2-kernel/2.6/55-nslu2-rpbutton.patch')
| -rw-r--r-- | packages/linux/nslu2-kernel/2.6/55-nslu2-rpbutton.patch | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/packages/linux/nslu2-kernel/2.6/55-nslu2-rpbutton.patch b/packages/linux/nslu2-kernel/2.6/55-nslu2-rpbutton.patch new file mode 100644 index 0000000000..b5ce101d68 --- /dev/null +++ b/packages/linux/nslu2-kernel/2.6/55-nslu2-rpbutton.patch @@ -0,0 +1,139 @@ +--- nslu2-io.c.old 2da1d3f5c0aa0804c5769588337077ddcb35c5e9 ++++ linux-2.6.12.2/arch/arm/mach-ixp4xx/nslu2-io.c e895da638b4aae16a11fafe52ae0b063645a9a12 +@@ -158,6 +158,8 @@ + #define LED_DISK2 3 + #define LED_ALL 4 + ++static int nslu2_shutdown_in_progress = 0; ++ + static unsigned long init_jiffy = 0; //jiffies at init time + static unsigned long rb_presses = 0; //number of reset button presses + static unsigned long ontime = 50; +@@ -503,40 +505,20 @@ + static irqreturn_t n2pb_handler (int irq, void *dev_id, struct pt_regs *regs) + { + void *ret; +- +- wake_up(&n2pb_waitq); +- remove_proc_entry(PWR_OFF_STR, NULL); //no parent +- n2_buzz(N2_BEEP_PITCH_MED, N2_BEEP_DUR_MED); +- ret = create_proc_entry(PWR_OFF_STR, 0, NULL); +- nslu2_io_debug((KERN_DEBUG "cpe ret = %p\n", ret)); +- +-// WARNING: This is RUDE...it unconditionally pulls the power plug. +-// Your data will be at risk...since this is just a test system +-// I am leaving it enabled...eventually userland needs to get the +-// message, do an orderly shutdown and use an ioctl or something in +-// /proc/powerdowm to actually have us pull the plug. +- +- machine_power_off(); +- ++ if (!nslu2_shutdown_in_progress++) { ++ wake_up(&n2pb_waitq); ++ remove_proc_entry(PWR_OFF_STR, NULL); //no parent ++ n2_buzz(N2_BEEP_PITCH_HIGH, N2_BEEP_DUR_SHORT); // Short, high-pitched "OK" ++ ret = create_proc_entry(PWR_OFF_STR, 0, NULL); ++ nslu2_io_debug((KERN_DEBUG "Powerbutton pressed. Shutting down. cpe ret = %p\n", ret)); ++ kill_proc(1,SIGINT,1); // Signal init to shut down ++ } else { ++ n2_buzz(N2_BEEP_PITCH_LOW, N2_BEEP_DUR_MED); // Make a scary noise! ++ nslu2_io_debug((KERN_DEBUG "Powerbutton pressed while already in shutdown")); // Whine! ++ } + return IRQ_HANDLED; + } + +-//================================================================================================== +-// +-//static void do_rb_timeout(unsigned long data) +-//{ +-// int i; +-// +-// for (i = 0; i < rb_presses; i++) +-// n2_buzz(N2_BEEP_PITCH_MED,N2_BEEP_DUR_SHORT); +-// return; +-//} +-// +-//================================================================================================== +-// does nothing -- waiting for userland to define +-// This thing is sorta braindead...edge triggered IRQs aren't available in the drivers yet...so +-// we hang in a loop until the button is no longer pressed +- + struct testr { + int ctl; + long param; +@@ -544,72 +526,11 @@ + + static irqreturn_t n2rb_handler (int irq, void *dev_id, struct pt_regs *regs) + { ++// This doesn't reset the NSLU2. It powers it off. Close enough, since reset is unreliable + +- static struct testr test[] = { +- { N2LM_ALL_OFF,0 }, +- { N2LM_ON,0 }, +- { N2LM_OFF,0 }, +- { N2LM_ON,1 }, +- { N2LM_ALL_OFF,1 }, +- { N2LM_ON,2 }, +- { N2LM_OFF,2 }, +- { N2LM_ON,3 }, +- { N2LM_OFF,3 }, +- { N2LM_BLINK,0 }, +- { N2LM_OFF,0 }, +- { N2LM_BLINK,1 }, +- { N2LM_OFF,1 }, +- { N2LM_BLINK,2 }, +- { N2LM_OFF,2 }, +- { N2LM_BLINK,3 }, +- { N2LM_OFF,3 }, +- { N2LM_ALL_OFF,0 }, +- { N2LM_ALT,1 }, +- { N2LM_OFF,1 }, +- { N2LM_ALL_ON,0 } +- }; +- +- nslu2_io_debug(("Reset Entry IRQ =%d Presses = %d Jiffies = %08lx\tIO = %x\tIOW = %x\n", irq, rb_presses, jiffies, (int)_IO('M',rb_presses), (int)_IOW('M',rb_presses,long))); +- + wake_up(&n2rb_waitq); +- while ((*IXP4XX_GPIO_GPINR & GPIO_RB_BM) == 0) +- ; //wait for button release +- +- if (rb_presses > 20) +- rb_presses = 0; +- tone = (rb_presses * 50) + 200; +- ontime = (rb_presses*10) + 100; +- offtime = 500 - (rb_presses*20); +- nslu2_io_debug(("Ontime = %d\tOfftime = %d\tTone = %d\n",ontime,offtime,tone)); +- rb_presses++; +- +- n2bz_ioctl(NULL,NULL, N2BZ_BEEPS, rb_presses); +- n2lm_ioctl(NULL,NULL, test[rb_presses].ctl, test[rb_presses].param); +-// if (rb_presses == 0) { +-// init_jiffy = jiffies; +-// init_timer (&n2rb_timer); +-// n2rb_timer.function = do_rb_timeout; +-// }; +-// +-// if (rb_presses == 8) +-// rb_presses = 0; +-// if (rb_presses & 1) +-// n2lm_ledon(test[rb_presses]); +-// else +-// n2lm_ledoff(test[rb_presses]); +-// +-// n2rb_timer.expires = (jiffies + RB_DELAY); +-// add_timer (&n2rb_timer); +-// if (rb_presses < 5) { +-// if (rb_presses > 0) +-// n2lm_ledoff(rb_presses); +-// n2lm_ledon(++rb_presses); +-// n2lm_timer_start(rb_presses); +-// }; +- +- nslu2_io_debug((KERN_DEBUG "Reset Exit IRQ=%d Presses= %d Jiffies= %08lx\n", irq, rb_presses, jiffies)); +- return IRQ_HANDLED; +- ++ machine_power_off(); ++ return IRQ_HANDLED; // So we don't get a nobody cared error :-P + } + + //================================================================================================== |