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-rw-r--r--package/broadcom-diag/src/diag.c132
-rw-r--r--package/broadcom-diag/src/diag.h18
-rw-r--r--package/broadcom-diag/src/gpio.h10
3 files changed, 119 insertions, 41 deletions
diff --git a/package/broadcom-diag/src/diag.c b/package/broadcom-diag/src/diag.c
index af19079..c53ff2f 100644
--- a/package/broadcom-diag/src/diag.c
+++ b/package/broadcom-diag/src/diag.c
@@ -2,7 +2,7 @@
* diag.c - GPIO interface driver for Broadcom boards
*
* Copyright (C) 2006 Mike Baker <mbm@openwrt.org>,
- * Felix Fietkau <nbd@openwrt.org>
+ * Copyright (C) 2006-2007 Felix Fietkau <nbd@openwrt.org>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
@@ -28,10 +28,13 @@
#include <linux/version.h>
#include <asm/uaccess.h>
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
-#include <linux/kobject.h>
+#ifndef LINUX_2_4
#include <linux/workqueue.h>
-#define hotplug_path uevent_helper
+#include <linux/skbuff.h>
+#include <linux/netlink.h>
+#include <net/sock.h>
+extern struct sock *uevent_sock;
+extern u64 uevent_next_seqnum(void);
#else
#include <linux/tqueue.h>
#define INIT_WORK INIT_TQUEUE
@@ -43,6 +46,7 @@
#include "diag.h"
#define getvar(str) (nvram_get(str)?:"")
+static int fill_event(struct event_t *);
static unsigned int gpiomask = 0;
module_param(gpiomask, int, 0644);
@@ -713,23 +717,104 @@ static void unregister_buttons(struct button_t *b)
gpio_set_irqenable(0, button_handler);
}
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
+
+#ifndef LINUX_2_4
+static void add_msg(struct event_t *event, char *msg, int argv)
+{
+ char *s;
+
+ if (argv)
+ return;
+
+ s = skb_put(event->skb, strlen(msg) + 1);
+ strcpy(s, msg);
+}
+
static void hotplug_button(struct work_struct *work)
{
struct event_t *event = container_of(work, struct event_t, wq);
-#else
+ char *s;
+
+ if (!uevent_sock)
+ return;
+
+ event->skb = alloc_skb(2048, GFP_KERNEL);
+
+ s = skb_put(event->skb, strlen(event->action) + 2);
+ sprintf(s, "%s@", event->action);
+ fill_event(event);
+
+ NETLINK_CB(event->skb).dst_group = 1;
+ netlink_broadcast(uevent_sock, event->skb, 0, 1, GFP_KERNEL);
+
+ kfree(event);
+}
+
+#else /* !LINUX_2_4 */
+static inline char *kzalloc(unsigned int size, unsigned int gfp)
+{
+ char *p;
+
+ p = kmalloc(size, gfp);
+ if (p == NULL)
+ return NULL;
+
+ memset(p, 0, size);
+
+ return p;
+}
+
+static void add_msg(struct event_t *event, char *msg, int argv)
+{
+ if (argv)
+ event->argv[event->anr++] = event->scratch;
+ else
+ event->envp[event->enr++] = event->scratch;
+
+ event->scratch += sprintf(event->scratch, "%s", msg) + 1;
+}
+
static void hotplug_button(struct event_t *event)
{
-#endif
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- call_usermodehelper (event->argv[0], event->argv, event->envp, 1);
-#else
+ char *scratch = kzalloc(256, GFP_KERNEL);
+ event->scratch = scratch;
+
+ add_msg(event, hotplug_path, 1);
+ add_msg(event, "button", 1);
+ fill_event(event);
call_usermodehelper (event->argv[0], event->argv, event->envp);
-#endif
+ kfree(scratch);
kfree(event);
}
+#endif /* !LINUX_2_4 */
+static int fill_event (struct event_t *event)
+{
+ static char buf[128];
+
+ add_msg(event, "HOME=/", 0);
+ add_msg(event, "PATH=/sbin:/bin:/usr/sbin:/usr/bin", 0);
+ add_msg(event, "SUBSYSTEM=button", 0);
+ snprintf(buf, 128, "ACTION=%s", event->action);
+ add_msg(event, buf, 0);
+ snprintf(buf, 128, "BUTTON=%s", event->name);
+ add_msg(event, buf, 0);
+ snprintf(buf, 128, "SEEN=%ld", event->seen);
+ add_msg(event, buf, 0);
+#ifndef LINUX_2_4
+ snprintf(buf, 128, "SEQNUM=%llu", uevent_next_seqnum());
+ add_msg(event, buf, 0);
+#endif
+
+ return 0;
+}
+
+
+#ifndef LINUX_2_4
+static irqreturn_t button_handler(int irq, void *dev_id)
+#else
static irqreturn_t button_handler(int irq, void *dev_id, struct pt_regs *regs)
+#endif
{
struct button_t *b;
u32 in, changed;
@@ -748,26 +833,10 @@ static irqreturn_t button_handler(int irq, void *dev_id, struct pt_regs *regs)
b->pressed ^= 1;
- if ((event = (struct event_t *)kmalloc (sizeof(struct event_t), GFP_ATOMIC))) {
- int i;
- char *scratch = event->buf;
-
- i = 0;
- event->argv[i++] = hotplug_path;
- event->argv[i++] = "button";
- event->argv[i] = 0;
-
- i = 0;
- event->envp[i++] = "HOME=/";
- event->envp[i++] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
- event->envp[i++] = scratch;
- scratch += sprintf (scratch, "ACTION=%s", b->pressed?"pressed":"released") + 1;
- event->envp[i++] = scratch;
- scratch += sprintf (scratch, "BUTTON=%s", b->name) + 1;
- event->envp[i++] = scratch;
- scratch += sprintf (scratch, "SEEN=%ld", (jiffies - b->seen)/HZ) + 1;
- event->envp[i] = 0;
-
+ if ((event = (struct event_t *)kzalloc (sizeof(struct event_t), GFP_ATOMIC))) {
+ event->seen = (jiffies - b->seen)/HZ;
+ event->name = b->name;
+ event->action = b->pressed ? "pressed" : "released";
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
INIT_WORK(&event->wq, (void *)(void *)hotplug_button);
#else
@@ -1024,7 +1093,6 @@ static int __init diag_init(void)
static void __exit diag_exit(void)
{
-
del_timer(&led_timer);
if (platform.buttons)
diff --git a/package/broadcom-diag/src/diag.h b/package/broadcom-diag/src/diag.h
index 9b6dc36..93fdedb 100644
--- a/package/broadcom-diag/src/diag.h
+++ b/package/broadcom-diag/src/diag.h
@@ -74,9 +74,16 @@ struct platform_t {
struct event_t {
struct work_struct wq;
- char buf[256];
- char *argv[3];
- char *envp[6];
+ unsigned long seen;
+ char *name, *action;
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,0)
+ struct sk_buff *skb;
+#else
+ char *scratch;
+ char *argv[4];
+ char *envp[7];
+ u8 enr, anr;
+#endif
};
extern char *nvram_get(char *str);
@@ -88,12 +95,13 @@ static struct platform_t platform;
static void register_buttons(struct button_t *b);
static void unregister_buttons(struct button_t *b);
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
+#ifndef LINUX_2_4
static void hotplug_button(struct work_struct *work);
+static irqreturn_t button_handler(int irq, void *dev_id);
#else
static void hotplug_button(struct event_t *event);
-#endif
static irqreturn_t button_handler(int irq, void *dev_id, struct pt_regs *regs);
+#endif
/* leds */
diff --git a/package/broadcom-diag/src/gpio.h b/package/broadcom-diag/src/gpio.h
index 16f6ca4..6d83039 100644
--- a/package/broadcom-diag/src/gpio.h
+++ b/package/broadcom-diag/src/gpio.h
@@ -53,7 +53,7 @@ static inline u32 gpio_intpolarity(u32 mask, u32 value)
gpio_op(polarity, mask, value);
}
-static void gpio_set_irqenable(int enabled, irqreturn_t (*handler)(int, void *, struct pt_regs *))
+static void gpio_set_irqenable(int enabled, irqreturn_t (*handler)(int, void *))
{
int irq;
@@ -63,10 +63,12 @@ static void gpio_set_irqenable(int enabled, irqreturn_t (*handler)(int, void *,
irq = ssb_mips_irq(ssb.extif.dev) + 2;
else return;
- if (enabled)
- request_irq(irq, handler, SA_SHIRQ | SA_SAMPLE_RANDOM, "gpio", handler);
- else
+ if (enabled) {
+ if (request_irq(irq, handler, IRQF_SHARED | IRQF_SAMPLE_RANDOM, "gpio", handler))
+ return;
+ } else {
free_irq(irq, handler);
+ }
if (ssb.chipco.dev)
ssb_write32_masked(ssb.chipco.dev, SSB_CHIPCO_IRQMASK, SSB_CHIPCO_IRQ_GPIO, (enabled ? SSB_CHIPCO_IRQ_GPIO : 0));
generated by cgit v1.1 at 2024-12-12 09:07:23 +0000