diff options
Diffstat (limited to 'packages/linux/nslu2-kernel/2.6.15/60-nslu2-beeper.patch')
| -rw-r--r-- | packages/linux/nslu2-kernel/2.6.15/60-nslu2-beeper.patch | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/packages/linux/nslu2-kernel/2.6.15/60-nslu2-beeper.patch b/packages/linux/nslu2-kernel/2.6.15/60-nslu2-beeper.patch new file mode 100644 index 0000000000..12fdc4d96e --- /dev/null +++ b/packages/linux/nslu2-kernel/2.6.15/60-nslu2-beeper.patch @@ -0,0 +1,184 @@ + drivers/input/misc/Kconfig | 12 +++ + drivers/input/misc/Makefile | 1 + drivers/input/misc/nslu2spkr.c | 148 +++++++++++++++++++++++++++++++++++++++++ + 3 files changed, 161 insertions(+) + +--- linux-2.6.15/drivers/input/misc/Kconfig 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.15/drivers/input/misc/Kconfig 1970-01-01 00:00:00.000000000 +0000 +@@ -40,6 +40,18 @@ config INPUT_M68K_BEEP + tristate "M68k Beeper support" + depends on M68K + ++config INPUT_NSLU2_BEEPER ++ tristate "NSLU2 Beeper support" ++ depends on MACH_NSLU2 ++ help ++ Say Y here if you want the embedded beeper on the LinkSys NSLU2 ++ to be used for bells and whistles. ++ ++ If unsure, say Y. ++ ++ To compile this driver as a module, choose M here: the ++ module will be called nslu2spkr. ++ + config INPUT_UINPUT + tristate "User level driver support" + help +--- linux-2.6.15/drivers/input/misc/Makefile 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.15/drivers/input/misc/Makefile 1970-01-01 00:00:00.000000000 +0000 +@@ -10,3 +10,4 @@ obj-$(CONFIG_INPUT_M68K_BEEP) += m68ksp + obj-$(CONFIG_INPUT_98SPKR) += 98spkr.o + obj-$(CONFIG_INPUT_UINPUT) += uinput.o + obj-$(CONFIG_HP_SDC_RTC) += hp_sdc_rtc.o ++obj-$(CONFIG_INPUT_NSLU2_BEEPER) += nslu2spkr.o +--- linux-2.6.15/drivers/input/misc/nslu2spkr.c 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.15/drivers/input/misc/nslu2spkr.c 1970-01-01 00:00:00.000000000 +0000 +@@ -0,0 +1,148 @@ ++/* ++ * drivers/input/misc/nslu2spkr.c ++ * ++ * NSLU2 Beeper driver ++ * ++ * Copyright (C) 2005 Tower Technologies ++ * ++ * based on nslu2-io.c ++ * Copyright (C) 2004 Karen Spearel ++ * ++ * Author: Alessandro Zummo <a.zummo@towertech.it> ++ * Maintainers: http://www.nslu2-linux.org/ ++ * ++ * 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/config.h> ++#include <linux/module.h> ++#include <linux/init.h> ++#include <linux/input.h> ++#include <linux/delay.h> ++ ++#include <asm/hardware.h> ++#include <asm/irq.h> ++#include <asm/mach-types.h> ++ ++static unsigned int beep_on_startup = 1; ++module_param(beep_on_startup, bool, 0); ++MODULE_PARM_DESC(beep_on_startup, "Play a beep on module startup"); ++ ++DEFINE_SPINLOCK(beep_lock); ++ ++static int nslu2_spkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value) ++{ ++ unsigned int count = 0; ++ unsigned long flags; ++ ++ if (type != EV_SND) ++ return -1; ++ ++ switch (code) { ++ case SND_BELL: ++ if (value) value = 1000; ++ case SND_TONE: ++ break; ++ default: ++ return -1; ++ } ++ ++ if (value > 20 && value < 32767) ++ count = (NSLU2_FREQ / (value*4)) - 1; ++ ++ spin_lock_irqsave(&beep_lock, flags); ++ ++ if (count) { ++ ++ gpio_line_config(NSLU2_GPIO_BUZZ, IXP4XX_GPIO_OUT); ++ gpio_line_set(NSLU2_GPIO_BUZZ, IXP4XX_GPIO_LOW); ++ ++ *IXP4XX_OSRT2 = (count & ~IXP4XX_OST_RELOAD_MASK) | IXP4XX_OST_ENABLE; ++ ++ } else { ++ ++ gpio_line_config(NSLU2_GPIO_BUZZ, IXP4XX_GPIO_IN); ++ gpio_line_set(NSLU2_GPIO_BUZZ, IXP4XX_GPIO_HIGH); ++ ++ *IXP4XX_OSRT2 = 0; ++ } ++ ++ spin_unlock_irqrestore(&beep_lock, flags); ++ ++ return 0; ++} ++ ++static struct input_dev nslu2_spkr_dev = { ++ .phys = "ixp420/gpio4", ++ .name = "NSLU2 Beeper", ++ .evbit[0] = BIT(EV_SND), ++ .sndbit[0] = BIT(SND_BELL) | BIT(SND_TONE), ++ .event = nslu2_spkr_event, ++ .id = { ++ .bustype = BUS_HOST, ++ .vendor = 0x001f, ++ .product = 0x0001, ++ .version = 0x0100 ++ } ++}; ++ ++static irqreturn_t nslu2_spkr_handler(int irq, void *dev_id, struct pt_regs *regs) ++{ ++ /* clear interrupt */ ++ *IXP4XX_OSST = IXP4XX_OSST_TIMER_2_PEND; ++ ++ /* flip the beeper output */ ++ *IXP4XX_GPIO_GPOUTR ^= NSLU2_BZ_BM; ++ ++ return IRQ_HANDLED; ++} ++ ++static int __init nslu2_spkr_init(void) ++{ ++ if (!(machine_is_nslu2())) ++ return -ENODEV; ++ ++ if (request_irq(IRQ_IXP4XX_TIMER2, &nslu2_spkr_handler, ++ SA_INTERRUPT | SA_TIMER, "nslu2-beeper", NULL < 0)) { ++ ++ printk(KERN_INFO "NSLU2 beeper: IRQ %d not available\n", ++ IRQ_IXP4XX_TIMER2); ++ ++ return -EIO; ++ } ++ ++ input_register_device(&nslu2_spkr_dev); ++ ++ /* do a little beep to tell the world we are alive */ ++ if (beep_on_startup) ++ { ++ nslu2_spkr_event(NULL, EV_SND, SND_TONE, 440); ++ msleep(120); ++ nslu2_spkr_event(NULL, EV_SND, SND_TONE, 0); ++ } ++ ++ printk(KERN_INFO "NSLU2: beeper\n"); ++ return 0; ++} ++ ++static void __exit nslu2_spkr_exit(void) ++{ ++ input_unregister_device(&nslu2_spkr_dev); ++ ++ disable_irq(IRQ_IXP4XX_TIMER2); ++ ++ /* turn it off */ ++ nslu2_spkr_event(NULL, EV_SND, SND_BELL, 0); ++ ++ free_irq(IRQ_IXP4XX_TIMER2, NULL); ++} ++ ++module_init(nslu2_spkr_init); ++module_exit(nslu2_spkr_exit); ++ ++MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>"); ++MODULE_DESCRIPTION("NSLU2 Beeper driver"); ++MODULE_LICENSE("GPL"); |