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[adm5120] add morse LED trigger, will be used for diagnostic, update kernel config 

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@9053 3c298f89-4303-0410-b956-a3cf2f4a3e73
master
Gabor Juhos 2007-09-28 06:32:40 +00:00
parent bb6c4aade1
commit dda6f40969
4 changed files with 310 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

284
target/linux/adm5120/files/drivers/leds/ledtrig-morse.c Normal file
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@ -0,0 +1,284 @@
/*
* LED Morse Trigger
*
* Copyright (C) 2007 Gabor Juhos <juhosg at openwrt.org>
*
* This file was based on: drivers/led/ledtrig-timer.c
* Copyright 2005-2006 Openedhand Ltd.
* Author: Richard Purdie <rpurdie@openedhand.com>
*
* also based on the patch '[PATCH] 2.5.59 morse code panics' posted
* in the LKML by Tomas Szepe at Thu, 30 Jan 2003
* Copyright (C) 2002 Andrew Rodland <arodland@noln.com>
* Copyright (C) 2003 Tomas Szepe <szepe@pinerecords.com>
*
* 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/module.h>
#include <linux/jiffies.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/device.h>
#include <linux/sysdev.h>
#include <linux/timer.h>
#include <linux/ctype.h>
#include <linux/leds.h>
#include "leds.h"
struct morse_trig_data {
unsigned long delay;
char *msg;
unsigned char morse;
unsigned char state;
char *msgpos;
struct timer_list timer;
};
const unsigned char morsetable[] = {
0122, 0, 0310, 0, 0, 0163, /* "#$%&' */
055, 0155, 0, 0, 0163, 0141, 0152, 0051, /* ()*+,-./ */
077, 076, 074, 070, 060, 040, 041, 043, 047, 057, /* 0-9 */
0107, 0125, 0, 0061, 0, 0114, 0, /* :;<=>?@ */
006, 021, 025, 011, 002, 024, 013, 020, 004, /* A-I */
036, 015, 022, 007, 005, 017, 026, 033, 012, /* J-R */
010, 003, 014, 030, 016, 031, 035, 023, /* S-Z */
0, 0, 0, 0, 0154 /* [\]^_ */
};
static inline unsigned char tomorse(char c) {
if (c >= 'a' && c <= 'z')
c = c - 'a' + 'A';
if (c >= '"' && c <= '_') {
return morsetable[c - '"'];
} else
return 0;
}
static inline unsigned long dit_len(struct morse_trig_data *morse_data)
{
return morse_data->delay;
}
static inline unsigned long dah_len(struct morse_trig_data *morse_data)
{
return 3*morse_data->delay;
}
static inline unsigned long space_len(struct morse_trig_data *morse_data)
{
return 7*morse_data->delay;
}
static void morse_timer_function(unsigned long data)
{
struct led_classdev *led_cdev = (struct led_classdev *) data;
struct morse_trig_data *morse_data = led_cdev->trigger_data;
unsigned long brightness = LED_OFF;
unsigned long delay = 0;
if (!morse_data->msg)
goto set_led;
switch (morse_data->state) {
case 0:
/* Starting a new blink. We have a valid code in morse. */
delay = (morse_data->morse & 001) ? dah_len(morse_data):
dit_len(morse_data);
brightness = LED_FULL;
morse_data->state = 1;
morse_data->morse >>= 1;
break;
case 1:
/* Coming off of a blink. */
morse_data->state = 0;
if (morse_data->morse > 1) {
/* Not done yet, just a one-dit pause. */
delay = dit_len(morse_data);
break;
}
/* Get a new char, figure out how much space. */
/* First time through */
if (!morse_data->msgpos)
morse_data->msgpos = (char *)morse_data->msg;
if (!*morse_data->msgpos) {
/* Repeating */
morse_data->msgpos = (char *)morse_data->msg;
delay = space_len(morse_data);
} else {
/* Inter-letter space */
delay = dah_len(morse_data);
}
if (!(morse_data->morse = tomorse(*morse_data->msgpos))) {
delay = space_len(morse_data);
morse_data->state = 1; /* And get us back here */
}
morse_data->msgpos++;
break;
}
mod_timer(&morse_data->timer, jiffies + msecs_to_jiffies(delay));
set_led:
led_set_brightness(led_cdev, brightness);
}
static ssize_t morse_delay_show(struct class_device *dev, char *buf)
{
struct led_classdev *led_cdev = class_get_devdata(dev);
struct morse_trig_data *morse_data = led_cdev->trigger_data;
sprintf(buf, "%lu\n", morse_data->delay);
return strlen(buf) + 1;
}
static ssize_t morse_delay_store(struct class_device *dev, const char *buf,
size_t size)
{
struct led_classdev *led_cdev = class_get_devdata(dev);
struct morse_trig_data *morse_data = led_cdev->trigger_data;
char *after;
unsigned long state = simple_strtoul(buf, &after, 10);
size_t count = after - buf;
int ret = -EINVAL;
if (*after && isspace(*after))
count++;
if (count == size) {
morse_data->delay = state;
mod_timer(&morse_data->timer, jiffies + 1);
ret = count;
}
return ret;
}
static ssize_t morse_msg_show(struct class_device *dev, char *buf)
{
struct led_classdev *led_cdev = class_get_devdata(dev);
struct morse_trig_data *morse_data = led_cdev->trigger_data;
if (!morse_data->msg)
sprintf(buf, "<none>\n");
else
sprintf(buf, "%s\n", morse_data->msg);
return strlen(buf) + 1;
}
static ssize_t morse_msg_store(struct class_device *dev, const char *buf,
size_t size)
{
struct led_classdev *led_cdev = class_get_devdata(dev);
struct morse_trig_data *morse_data = led_cdev->trigger_data;
char *m;
m = kmalloc(size, GFP_KERNEL);
if (!m)
return -ENOMEM;
memcpy(m,buf,size);
m[size]='\0';
if (!morse_data->msg)
kfree(morse_data->msg);
morse_data->msg = m;
morse_data->msgpos = NULL;
morse_data->state = 1;
mod_timer(&morse_data->timer, jiffies + 1);
return size;
}
static CLASS_DEVICE_ATTR(delay, 0644, morse_delay_show, morse_delay_store);
static CLASS_DEVICE_ATTR(message, 0644, morse_msg_show, morse_msg_store);
static void morse_trig_activate(struct led_classdev *led_cdev)
{
struct morse_trig_data *morse_data;
int rc;
morse_data = kzalloc(sizeof(*morse_data), GFP_KERNEL);
if (!morse_data)
return;
led_cdev->trigger_data = morse_data;
morse_data->delay = (HZ/2);
init_timer(&morse_data->timer);
morse_data->timer.function = morse_timer_function;
morse_data->timer.data = (unsigned long) led_cdev;
rc = class_device_create_file(led_cdev->class_dev,
&class_device_attr_delay);
if (rc) goto err;
rc = class_device_create_file(led_cdev->class_dev,
&class_device_attr_message);
if (rc) goto err_delay;
return;
err_delay:
class_device_remove_file(led_cdev->class_dev,
&class_device_attr_delay);
err:
led_cdev->trigger_data = NULL;
kfree(morse_data);
}
static void morse_trig_deactivate(struct led_classdev *led_cdev)
{
struct morse_trig_data *morse_data = led_cdev->trigger_data;
if (!morse_data)
return;
class_device_remove_file(led_cdev->class_dev,
&class_device_attr_message);
class_device_remove_file(led_cdev->class_dev,
&class_device_attr_delay);
del_timer_sync(&morse_data->timer);
if (!morse_data->msg)
kfree(morse_data->msg);
kfree(morse_data);
}
static struct led_trigger morse_led_trigger = {
.name = "morse",
.activate = morse_trig_activate,
.deactivate = morse_trig_deactivate,
};
static int __init morse_trig_init(void)
{
return led_trigger_register(&morse_led_trigger);
}
static void __exit morse_trig_exit(void)
{
led_trigger_unregister(&morse_led_trigger);
}
module_init(morse_trig_init);
module_exit(morse_trig_exit);
MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
MODULE_DESCRIPTION("Morse LED trigger");
MODULE_LICENSE("GPL");

19
target/linux/adm5120/patches-2.6.22/300-ledtrig_morse.patch Normal file
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@ -0,0 +1,19 @@
--- linux-2.6.21.1.orig/drivers/leds/Kconfig 2007-09-09 07:15:28.000000000 +0200
+++ linux-2.6.21.1/drivers/leds/Kconfig 2007-09-13 19:36:35.000000000 +0200
@@ -149,5 +149,9 @@
load average.
If unsure, say Y.
+config LEDS_TRIGGER_MORSE
+ tristate "LED Morse Trigger"
+ depends on LEDS_TRIGGERS
+
endmenu
--- linux-2.6.21.1.orig/drivers/leds/Makefile 2007-09-09 07:15:28.000000000 +0200
+++ linux-2.6.21.1/drivers/leds/Makefile 2007-09-13 19:33:15.000000000 +0200
@@ -23,3 +23,4 @@
obj-$(CONFIG_LEDS_TRIGGER_TIMER) += ledtrig-timer.o
obj-$(CONFIG_LEDS_TRIGGER_IDE_DISK) += ledtrig-ide-disk.o
obj-$(CONFIG_LEDS_TRIGGER_HEARTBEAT) += ledtrig-heartbeat.o
+obj-$(CONFIG_LEDS_TRIGGER_MORSE) += ledtrig-morse.o

5
target/linux/adm5120/router_be/config-2.6.22
View File

@ -6,7 +6,6 @@ CONFIG_ADM5120_CPU_OVERRIDES=y
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
# CONFIG_ARCH_SUPPORTS_MSI is not set
CONFIG_ARM_AMBA=y
# CONFIG_ATM_DRIVERS is not set
CONFIG_BASE_SMALL=0
CONFIG_BAYCOM_SER_FDX=m
CONFIG_BAYCOM_SER_HDX=m
@ -93,6 +92,7 @@ CONFIG_LEDS_ADM5120=y
CONFIG_LEDS_ADM5120_DIAG=y
# CONFIG_LEDS_ADM5120_EXPERIMENTAL is not set
CONFIG_LEDS_GPIO=y
# CONFIG_LEDS_TRIGGER_MORSE is not set
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256
# CONFIG_MACH_ALCHEMY is not set
@ -171,6 +171,8 @@ CONFIG_NET_KEY=y
# CONFIG_NET_PKTGEN is not set
CONFIG_NET_SCH_FIFO=y
# CONFIG_NET_VENDOR_3COM is not set
CONFIG_NF_CT_PROTO_GRE=m
CONFIG_NF_NAT_PROTO_GRE=m
# CONFIG_PAGE_SIZE_16KB is not set
CONFIG_PAGE_SIZE_4KB=y
# CONFIG_PAGE_SIZE_64KB is not set
@ -182,7 +184,6 @@ CONFIG_PCI_ADM5120=y
# CONFIG_PNPACPI is not set
# CONFIG_PNX8550_JBS is not set
# CONFIG_PNX8550_STB810 is not set
# CONFIG_ROMFS_FS is not set
# CONFIG_RTC is not set
CONFIG_RWSEM_GENERIC_SPINLOCK=y
CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y

10
target/linux/adm5120/router_le/config-2.6.22
View File

@ -6,7 +6,6 @@ CONFIG_ADM5120_CPU_OVERRIDES=y
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
# CONFIG_ARCH_SUPPORTS_MSI is not set
CONFIG_ARM_AMBA=y
# CONFIG_ATM_DRIVERS is not set
CONFIG_BASE_SMALL=0
CONFIG_BAYCOM_SER_FDX=m
CONFIG_BAYCOM_SER_HDX=m
@ -93,6 +92,7 @@ CONFIG_LEDS_ADM5120=y
CONFIG_LEDS_ADM5120_DIAG=y
# CONFIG_LEDS_ADM5120_EXPERIMENTAL is not set
CONFIG_LEDS_GPIO=y
# CONFIG_LEDS_TRIGGER_MORSE is not set
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256
# CONFIG_MACH_ALCHEMY is not set
@ -155,6 +155,7 @@ CONFIG_MTD_MAP_BANK_WIDTH_4=y
# CONFIG_MTD_MTDRAM is not set
CONFIG_MTD_MYLOADER_PARTS=y
CONFIG_MTD_NAND=y
CONFIG_MTD_NAND_ADM5120=y
# CONFIG_MTD_NAND_CAFE is not set
# CONFIG_MTD_NAND_DISKONCHIP is not set
# CONFIG_MTD_NAND_ECC_SMC is not set
@ -162,7 +163,6 @@ CONFIG_MTD_NAND_IDS=y
# CONFIG_MTD_NAND_MUSEUM_IDS is not set
# CONFIG_MTD_NAND_NANDSIM is not set
# CONFIG_MTD_NAND_PLATFORM is not set
CONFIG_MTD_NAND_ADM5120=y
# CONFIG_MTD_NAND_VERIFY_WRITE is not set
# CONFIG_MTD_ONENAND is not set
CONFIG_MTD_PARTITIONS=y
@ -181,6 +181,8 @@ CONFIG_NET_KEY=y
# CONFIG_NET_PKTGEN is not set
CONFIG_NET_SCH_FIFO=y
# CONFIG_NET_VENDOR_3COM is not set
CONFIG_NF_CT_PROTO_GRE=m
CONFIG_NF_NAT_PROTO_GRE=m
# CONFIG_PAGE_SIZE_16KB is not set
CONFIG_PAGE_SIZE_4KB=y
# CONFIG_PAGE_SIZE_64KB is not set
@ -192,7 +194,6 @@ CONFIG_PCI_ADM5120=y
# CONFIG_PNPACPI is not set
# CONFIG_PNX8550_JBS is not set
# CONFIG_PNX8550_STB810 is not set
# CONFIG_ROMFS_FS is not set
# CONFIG_RTC is not set
CONFIG_RWSEM_GENERIC_SPINLOCK=y
CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y
@ -247,9 +248,6 @@ CONFIG_USB_ADM5120_HCD=m
# CONFIG_USB_CATC is not set
# CONFIG_USB_EHCI_BIG_ENDIAN_MMIO is not set
CONFIG_USB_EHCI_HCD=m
# CONFIG_USB_EHCI_ROOT_HUB_TT is not set
# CONFIG_USB_EHCI_SPLIT_ISO is not set
# CONFIG_USB_EHCI_TT_NEWSCHED is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_NET_DM9601 is not set
# CONFIG_USB_NET_GL620A is not set