* 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
#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
#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);
WE800G,
WR850GV1,
WR850GV2V3,
+ WR850GP,
/* Belkin */
BELKIN_UNKNOWN,
/* SimpleTech */
STI_NAS,
+
+ /* D-Link */
+ DIR130,
+ DIR330,
+ DWL3150,
};
static void __init bcm4780_init(void) {
.buttons = {
{ .name = "reset", .gpio = 1 << 5 },
},
+ .leds = {
+ { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
+ { .name = "wlan", .gpio = 1 << 0, .polarity = REVERSE },
+ { .name = "wan", .gpio = 1 << 6, .polarity = INPUT },
+ { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
+ },
+ },
+ [WR850GP] = {
+ .name = "Motorola WR850GP",
+ .buttons = {
+ { .name = "reset", .gpio = 1 << 5 },
+ },
.leds = {
{ .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
{ .name = "wlan", .gpio = 1 << 0, .polarity = REVERSE },
{ .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
},
},
+
/* Belkin */
[BELKIN_UNKNOWN] = {
.name = "Belkin (unknown)",
},
.platform_init = bcm4780_init,
},
+ /* D-Link */
+ [DIR130] = {
+ .name = "D-Link DIR-130",
+ .buttons = {
+ { .name = "reset", .gpio = 1 << 3},
+ { .name = "reserved", .gpio = 1 << 7},
+ },
+ .leds = {
+ { .name = "diag", .gpio = 1 << 0},
+ { .name = "blue", .gpio = 1 << 6},
+ },
+ },
+ [DIR330] = {
+ .name = "D-Link DIR-330",
+ .buttons = {
+ { .name = "reset", .gpio = 1 << 3},
+ { .name = "reserved", .gpio = 1 << 7},
+ },
+ .leds = {
+ { .name = "diag", .gpio = 1 << 0},
+ { .name = "usb", .gpio = 1 << 4},
+ { .name = "blue", .gpio = 1 << 6},
+ },
+ },
+ [DWL3150] = {
+ .name = "D-Link DWL-3150",
+ .buttons = {
+ { .name = "reset", .gpio = 1 << 7},
+ },
+ .leds = {
+ { .name = "diag", .gpio = 1 << 2},
+ { .name = "status", .gpio = 1 << 1},
+ },
+ },
};
static struct platform_t __init *platform_detect(void)
{
char *boardnum, *boardtype, *buf;
- boardnum = getvar("boardnum");
- boardtype = getvar("boardtype");
-
if (strcmp(getvar("nvram_type"), "cfe") == 0)
return &platforms[WGT634U];
-
- if (strncmp(getvar("model_no"), "WL700",5) == 0)
- return &platforms[WL700GE];
+
+ /* Look for a model identifier */
+
+ /* Based on "model_name" */
+ if (buf = nvram_get("model_name")) {
+ if (!strcmp(buf, "DIR-130"))
+ return &platforms[DIR130];
+ if (!strcmp(buf, "DIR-330"))
+ return &platforms[DIR330];
+ }
+
+ /* Based on "model_no" */
+ if (buf = nvram_get("model_no")) {
+ if (!strncmp(buf,"WL700", 5)) /* WL700* */
+ return &platforms[WL700GE];
+ }
+
+ /* Based on "ModelId" */
+ if (buf = nvram_get("ModelId")) {
+ if (!strcmp(buf, "WR850GP"))
+ return &platforms[WR850GP];
+ if (!strcmp(buf,"WX-5565"))
+ return &platforms[TM2300];
+ if (!strncmp(buf,"WE800G", 6)) /* WE800G* */
+ return &platforms[WE800G];
+ }
+
+ /* Buffalo */
+ if ((buf = (nvram_get("melco_id") ?: nvram_get("buffalo_id")))) {
+ /* Buffalo hardware, check id for specific hardware matches */
+ if (!strcmp(buf, "29bb0332"))
+ return &platforms[WBR2_G54];
+ if (!strcmp(buf, "29129"))
+ return &platforms[WLA2_G54L];
+ if (!strcmp(buf, "30189"))
+ return &platforms[WHR_HP_G54];
+ if (!strcmp(buf, "30182"))
+ return &platforms[WHR_G54S];
+ if (!strcmp(buf, "290441dd"))
+ return &platforms[WHR2_A54G54];
+ if (!strcmp(buf, "31120"))
+ return &platforms[WZR_G300N];
+ if (!strcmp(buf, "30083"))
+ return &platforms[WZR_RS_G54];
+ if (!strcmp(buf, "30103"))
+ return &platforms[WZR_RS_G54HP];
+ }
+
+ /* no easy model number, attempt to guess */
+ boardnum = getvar("boardnum");
+ boardtype = getvar("boardtype");
if (strncmp(getvar("pmon_ver"), "CFE", 3) == 0) {
/* CFE based - newer hardware */
if (!strcmp(boardnum, "10496"))
return &platforms[USR5461];
- } else { /* PMON based - old stuff */
- /* Dell TrueMobile 2300 */
- if (!strcmp(getvar("ModelId"),"WX-5565"))
- return &platforms[TM2300];
-
+ } else { /* PMON based - old stuff */
if ((simple_strtoul(getvar("GemtekPmonVer"), NULL, 0) == 9) &&
(simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 30)) {
- if (!strncmp(getvar("ModelId"),"WE800G", 6))
- return &platforms[WE800G];
- else
- return &platforms[WR850GV1];
+ return &platforms[WR850GV1];
}
if (!strncmp(boardtype, "bcm94710dev", 11)) {
if (!strcmp(boardnum, "42"))
return &platforms[ASUS_4702];
}
- if ((buf = (nvram_get("melco_id") ?: nvram_get("buffalo_id")))) {
- /* Buffalo hardware, check id for specific hardware matches */
- if (!strcmp(buf, "29bb0332"))
- return &platforms[WBR2_G54];
- if (!strcmp(buf, "29129"))
- return &platforms[WLA2_G54L];
- if (!strcmp(buf, "30189"))
- return &platforms[WHR_HP_G54];
- if (!strcmp(buf, "30182"))
- return &platforms[WHR_G54S];
- if (!strcmp(buf, "290441dd"))
- return &platforms[WHR2_A54G54];
- if (!strcmp(buf, "31120"))
- return &platforms[WZR_G300N];
- if (!strcmp(buf, "30083"))
- return &platforms[WZR_RS_G54];
- if (!strcmp(buf, "30103"))
- return &platforms[WZR_RS_G54HP];
- }
-
if (buf || !strcmp(boardnum, "00")) {/* probably buffalo */
if (!strncmp(boardtype, "bcm94710ap", 10))
return &platforms[BUFFALO_UNKNOWN_4710];
if (!strncmp(boardnum, "04FN52", 6)) /* SimpleTech SimpleShare */
return &platforms[STI_NAS];
+ if (!strcmp(getvar("boardnum"), "10") && !strcmp(getvar("boardrev"), "0x13")) /* D-Link DWL-3150 */
+ return &platforms[DWL3150];
+
/* not found */
return NULL;
}
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;
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
{
struct proc_dir_entry *p;
u32 mask = 0;
+ u32 oe_mask = 0;
u32 val = 0;
leds = proc_mkdir("led", diag);
l->state = 0;
set_led_extif(l);
} else {
+ if (l->polarity != INPUT) oe_mask != l->gpio;
mask |= l->gpio;
val |= (l->polarity == NORMAL)?0:l->gpio;
}
+ if (l->polarity == INPUT) continue;
+
if ((p = create_proc_entry(l->name, S_IRUSR, leds))) {
l->proc.type = PROC_LED;
l->proc.ptr = l;
}
}
- gpio_outen(mask, mask);
+ gpio_outen(mask, oe_mask);
gpio_control(mask, 0);
gpio_out(mask, val);
}
len = 0;
}
+ kfree(page);
return len;
}
static void __exit diag_exit(void)
{
-
del_timer(&led_timer);
if (platform.buttons)
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