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openwrtv4/package/broadcom-diag/src/diag.c

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port new diag driver to kamikaze SVN-Revision: 5426
2006-11-03 21:58:08 +00:00
/*
* diag.c - GPIO interface driver for Broadcom boards
*
* Copyright (C) 2006 Mike Baker <mbm@openwrt.org>,
* 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
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
fix typo SVN-Revision: 5428
2006-11-03 22:11:29 +00:00
* $Id$
port new diag driver to kamikaze SVN-Revision: 5426
2006-11-03 21:58:08 +00:00
*/
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/kmod.h>
#include <linux/proc_fs.h>
#include <linux/timer.h>
#include <linux/version.h>
#include <asm/uaccess.h>
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
#include <linux/kobject.h>
#include <linux/workqueue.h>
#define hotplug_path uevent_helper
#else
#include <linux/tqueue.h>
#define INIT_WORK INIT_TQUEUE
#define schedule_work schedule_task
#define work_struct tq_struct
#define sbh bcm947xx_sbh
#define sbh_lock bcm947xx_sbh_lock
#endif
#include <typedefs.h>
#include <osl.h>
#include <bcmdevs.h>
#include <sbutils.h>
#include <sbconfig.h>
#include <sbchipc.h>
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
#include <sbmips.h>
#else
#include <hndcpu.h>
#endif
#define MODULE_NAME "diag"
#define MAX_GPIO 8
#define FLASH_TIME HZ/6
#define EXTIF_ADDR 0x1f000000
#define EXTIF_UART (EXTIF_ADDR + 0x00800000)
/* For LEDs */
#define GPIO_TYPE_NORMAL (0x0 << 24)
#define GPIO_TYPE_EXTIF (0x1 << 24)
#define GPIO_TYPE_MASK (0xf << 24)
static unsigned int gpiomask = 0;
module_param(gpiomask, int, 0644);
enum polarity_t {
REVERSE = 0,
NORMAL = 1,
};
enum {
PROC_BUTTON,
PROC_LED,
PROC_MODEL,
PROC_GPIOMASK
};
struct prochandler_t {
int type;
void *ptr;
};
struct button_t {
struct prochandler_t proc;
char *name;
u16 gpio;
u8 polarity;
u8 pressed;
unsigned long seen;
};
struct led_t {
struct prochandler_t proc;
char *name;
u32 gpio;
u8 polarity;
u8 flash;
u8 state;
};
struct platform_t {
char *name;
struct button_t buttons[MAX_GPIO];
struct led_t leds[MAX_GPIO];
};
enum {
/* Linksys */
WAP54GV1,
WAP54GV3,
WRT54GV1,
WRT54G,
WRTSL54GS,
WRT54G3G,
/* ASUS */
WLHDD,
WL300G,
WL500G,
WL500GD,
WL500GP,
ASUS_4702,
/* Buffalo */
WBR2_G54,
WHR_G54S,
WHR_HP_G54,
WHR2_A54G54,
WLA2_G54L,
BUFFALO_UNKNOWN,
BUFFALO_UNKNOWN_4710,
/* Siemens */
SE505V1,
SE505V2,
/* US Robotics */
USR5461,
/* Dell */
TM2300,
/* Motorola */
WE800G,
WR850GV1,
WR850GV2,
/* Belkin */
BELKIN_UNKNOWN,
};
static struct platform_t platforms[] = {
/* Linksys */
[WAP54GV1] = {
.name = "Linksys WAP54G V1",
.buttons = {
{ .name = "reset", .gpio = 1 << 0 },
},
.leds = {
{ .name = "diag", .gpio = 1 << 3 },
{ .name = "wlan", .gpio = 1 << 4 },
},
},
[WAP54GV3] = {
.name = "Linksys WAP54G V3",
.buttons = {
/* FIXME: verify this */
{ .name = "reset", .gpio = 1 << 7 },
{ .name = "ses", .gpio = 1 << 0 },
},
.leds = {
/* FIXME: diag? */
{ .name = "ses", .gpio = 1 << 1 },
},
},
[WRT54GV1] = {
.name = "Linksys WRT54G V1.x",
.buttons = {
{ .name = "reset", .gpio = 1 << 6 },
},
.leds = {
{ .name = "diag", .gpio = 0x13 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
{ .name = "dmz", .gpio = 0x12 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
},
},
[WRT54G] = {
.name = "Linksys WRT54G*",
.buttons = {
{ .name = "reset", .gpio = 1 << 6 },
{ .name = "ses", .gpio = 1 << 4 },
},
.leds = {
{ .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
{ .name = "dmz", .gpio = 1 << 7, .polarity = REVERSE },
{ .name = "ses_white", .gpio = 1 << 2, .polarity = REVERSE },
{ .name = "ses_orange", .gpio = 1 << 3, .polarity = REVERSE },
{ .name = "wlan", .gpio = 1 << 0, .polarity = REVERSE },
},
},
[WRTSL54GS] = {
.name = "Linksys WRTSL54GS",
.buttons = {
{ .name = "reset", .gpio = 1 << 6 },
{ .name = "ses", .gpio = 1 << 4 },
},
.leds = {
{ .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
{ .name = "dmz", .gpio = 1 << 7, .polarity = REVERSE },
{ .name = "ses_white", .gpio = 1 << 5, .polarity = REVERSE },
{ .name = "ses_orange", .gpio = 1 << 7, .polarity = REVERSE },
},
},
[WRT54G3G] = {
.name = "Linksys WRT54G3G",
.buttons = {
{ .name = "reset", .gpio = 1 << 6 },
{ .name = "3g", .gpio = 1 << 4 },
},
.leds = {
{ .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
{ .name = "dmz", .gpio = 1 << 7, .polarity = REVERSE },
{ .name = "3g_green", .gpio = 1 << 2, .polarity = NORMAL },
{ .name = "3g_blue", .gpio = 1 << 3, .polarity = NORMAL },
{ .name = "3g_blink", .gpio = 1 << 5, .polarity = NORMAL },
},
},
/* Asus */
[WLHDD] = {
.name = "ASUS WL-HDD",
.buttons = {
{ .name = "reset", .gpio = 1 << 6 },
},
.leds = {
{ .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
},
},
[WL300G] = {
fix typo SVN-Revision: 5428
2006-11-03 22:11:29 +00:00
.name = "ASUS WL-300g",
port new diag driver to kamikaze SVN-Revision: 5426
2006-11-03 21:58:08 +00:00
.buttons = {
{ .name = "reset", .gpio = 1 << 6 },
},
.leds = {
{ .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
},
},
[WL500G] = {
.name = "ASUS WL-500g",
.buttons = {
{ .name = "reset", .gpio = 1 << 6 },
},
.leds = {
{ .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
},
},
[WL500GD] = {
.name = "ASUS WL-500g Deluxe",
.buttons = {
{ .name = "reset", .gpio = 1 << 6 },
},
.leds = {
{ .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
},
},
[WL500GP] = {
.name = "ASUS WL-500g Premium",
.buttons = {
{ .name = "reset", .gpio = 1 << 0 },
{ .name = "ses", .gpio = 1 << 4 },
},
.leds = {
{ .name = "power", .gpio = 1 << 1, .polarity = REVERSE },
},
},
[ASUS_4702] = {
.name = "ASUS (unknown, BCM4702)",
.buttons = {
{ .name = "reset", .gpio = 1 << 6 },
},
.leds = {
{ .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
},
},
/* Buffalo */
[WHR_G54S] = {
.name = "Buffalo WHR-G54S",
.buttons = {
{ .name = "reset", .gpio = 1 << 4 },
{ .name = "ses", .gpio = 1 << 0 },
},
.leds = {
{ .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
{ .name = "internal", .gpio = 1 << 3, .polarity = REVERSE },
{ .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
},
},
[WBR2_G54] = {
.name = "Buffalo WBR2-G54",
/* FIXME: verify */
.buttons = {
{ .name = "reset", .gpio = 1 << 7 },
},
.leds = {
{ .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
},
},
[WHR_HP_G54] = {
.name = "Buffalo WHR-HP-G54",
.buttons = {
{ .name = "reset", .gpio = 1 << 4 },
{ .name = "bridge", .gpio = 1 << 5 },
{ .name = "ses", .gpio = 1 << 0 },
},
.leds = {
{ .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
{ .name = "bridge", .gpio = 1 << 1, .polarity = REVERSE },
{ .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
},
},
[WHR2_A54G54] = {
.name = "Buffalo WHR2-A54G54",
.buttons = {
{ .name = "reset", .gpio = 1 << 4 },
},
.leds = {
{ .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
},
},
[WLA2_G54L] = {
.name = "Buffalo WLA2-G54L",
/* FIXME: verify */
.buttons = {
{ .name = "reset", .gpio = 1 << 7 },
},
.leds = {
{ .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
},
},
[BUFFALO_UNKNOWN] = {
.name = "Buffalo (unknown)",
.buttons = {
{ .name = "reset", .gpio = 1 << 7 },
},
.leds = {
{ .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
},
},
[BUFFALO_UNKNOWN_4710] = {
.name = "Buffalo (unknown, BCM4710)",
.buttons = {
{ .name = "reset", .gpio = 1 << 4 },
},
.leds = {
{ .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
},
},
/* Siemens */
[SE505V1] = {
.name = "Siemens SE505 V1",
.buttons = {
/* No usable buttons */
},
.leds = {
{ .name = "dmz", .gpio = 1 << 4, .polarity = REVERSE },
{ .name = "wlan", .gpio = 1 << 3, .polarity = REVERSE },
},
},
[SE505V2] = {
.name = "Siemens SE505 V2",
.buttons = {
/* No usable buttons */
},
.leds = {
{ .name = "power", .gpio = 1 << 5, .polarity = REVERSE },
{ .name = "dmz", .gpio = 1 << 0, .polarity = REVERSE },
{ .name = "wlan", .gpio = 1 << 3, .polarity = REVERSE },
},
},
/* US Robotics */
[USR5461] = {
.name = "U.S. Robotics USR5461",
.buttons = {
/* No usable buttons */
},
.leds = {
{ .name = "wlan", .gpio = 1 << 0, .polarity = REVERSE },
{ .name = "printer", .gpio = 1 << 1, .polarity = REVERSE },
},
},
/* Dell */
[TM2300] = {
.name = "Dell TrueMobile 2300",
.buttons = {
{ .name = "reset", .gpio = 1 << 0 },
},
.leds = {
{ .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
},
},
/* Motorola */
[WE800G] = {
.name = "Motorola WE800G",
.buttons = {
{ .name = "reset", .gpio = 1 << 0 },
},
.leds = {
{ .name = "power", .gpio = 1 << 4, .polarity = NORMAL },
{ .name = "diag", .gpio = 1 << 2, .polarity = REVERSE },
{ .name = "wlan_amber", .gpio = 1 << 1, .polarity = NORMAL },
},
},
[WR850GV1] = {
.name = "Motorola WR850G V1",
.buttons = {
{ .name = "reset", .gpio = 1 << 0 },
},
.leds = {
{ .name = "power", .gpio = 1 << 4, .polarity = NORMAL },
{ .name = "diag", .gpio = 1 << 3, .polarity = REVERSE },
{ .name = "modem", .gpio = 1 << 6, .polarity = NORMAL },
{ .name = "wlan_red", .gpio = 1 << 5, .polarity = REVERSE },
{ .name = "wlan_green", .gpio = 1 << 7, .polarity = REVERSE },
},
},
[WR850GV2] = {
.name = "Motorola WR850G V2",
.buttons = {
{ .name = "reset", .gpio = 1 << 5 },
},
.leds = {
{ .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
{ .name = "wlan", .gpio = 1 << 0, .polarity = NORMAL },
{ .name = "modem_green",.gpio = 1 << 6, .polarity = REVERSE },
{ .name = "modem_red", .gpio = 1 << 7, .polarity = REVERSE },
},
},
/* Belkin */
[BELKIN_UNKNOWN] = {
.name = "Belkin (unknown)",
/* FIXME: verify & add detection */
.buttons = {
{ .name = "reset", .gpio = 1 << 7 },
},
.leds = {
{ .name = "power", .gpio = 1 << 5, .polarity = NORMAL },
{ .name = "wlan", .gpio = 1 << 3, .polarity = NORMAL },
{ .name = "connected", .gpio = 1 << 0, .polarity = NORMAL },
},
},
};
extern void *sbh;
extern spinlock_t sbh_lock;
extern char *nvram_get(char *str);
static struct proc_dir_entry *diag, *leds;
static struct platform_t platform;
static void led_flash(unsigned long dummy);
#define getvar(str) (nvram_get(str)?:"")
static void set_led_extif(struct led_t *led)
{
volatile u8 *addr = (volatile u8 *) KSEG1ADDR(EXTIF_UART) + (led->gpio & ~GPIO_TYPE_MASK);
if (led->state)
*addr = 0xFF;
else
*addr;
}
static struct platform_t __init *platform_detect(void)
{
char *boardnum, *boardtype, *buf;
boardnum = getvar("boardnum");
boardtype = getvar("boardtype");
if (strncmp(getvar("pmon_ver"), "CFE", 3) == 0) {
/* CFE based - newer hardware */
if (!strcmp(boardnum, "42")) { /* Linksys */
if (!strcmp(boardtype, "0x0101"))
return &platforms[WRT54G3G];
if (!strcmp(getvar("et1phyaddr"),"5") && !strcmp(getvar("et1mdcport"), "1"))
return &platforms[WRTSL54GS];
/* default to WRT54G */
return &platforms[WRT54G];
}
if (!strcmp(boardnum, "45")) { /* ASUS */
if (!strcmp(boardtype,"0x042f"))
return &platforms[WL500GP];
else
return &platforms[WL500GD];
}
if (!strcmp(boardnum, "10496"))
return &platforms[USR5461];
} else { /* PMON based - old stuff */
if (!strncmp(boardtype, "bcm94710dev", 11)) {
if (!strcmp(boardnum, "42"))
return &platforms[WRT54GV1];
if (simple_strtoul(boardnum, NULL, 9) == 2)
return &platforms[WAP54GV1];
}
if (!strncmp(getvar("hardware_version"), "WL500-", 6))
return &platforms[WL500G];
if (!strncmp(getvar("hardware_version"), "WL300-", 6)) {
/* Either WL-300g or WL-HDD, do more extensive checks */
if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
(simple_strtoul(getvar("et1phyaddr"), NULL, 9) == 1))
return &platforms[WLHDD];
if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
(simple_strtoul(getvar("et1phyaddr"), NULL, 9) == 10))
return &platforms[WL300G];
}
/* unknown asus stuff, probably bcm4702 */
if (!strncmp(boardnum, "asusX", 5))
return &platforms[ASUS_4702];
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];
}
}
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 (buf || !strcmp(boardnum, "00")) {/* probably buffalo */
if (!strncmp(boardtype, "bcm94710ap", 10))
return &platforms[BUFFALO_UNKNOWN_4710];
else
return &platforms[BUFFALO_UNKNOWN];
}
if (!strcmp(getvar("CFEver"), "MotoWRv203"))
return &platforms[WR850GV2];
/* not found */
return NULL;
}
static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos);
static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, void *data);
static struct file_operations diag_proc_fops = {
read: diag_proc_read,
write: diag_proc_write
};
static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos)
{
#ifdef LINUX_2_4
struct inode *inode = file->f_dentry->d_inode;
struct proc_dir_entry *dent = inode->u.generic_ip;
#else
struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
#endif
char *page;
int len = 0;
if ((page = kmalloc(1024, GFP_KERNEL)) == NULL)
return -ENOBUFS;
if (dent->data != NULL) {
struct prochandler_t *handler = (struct prochandler_t *) dent->data;
switch (handler->type) {
case PROC_LED: {
struct led_t * led = (struct led_t *) handler->ptr;
if (led->flash) {
len = sprintf(page, "f\n");
} else {
if (led->gpio & GPIO_TYPE_EXTIF) {
len = sprintf(page, "%d\n", led->state);
} else {
int in = (sb_gpioin(sbh) & led->gpio ? 1 : 0);
int p = (led->polarity == NORMAL ? 0 : 1);
len = sprintf(page, "%d\n", ((in ^ p) ? 1 : 0));
}
}
break;
}
case PROC_MODEL:
len = sprintf(page, "%s\n", platform.name);
break;
case PROC_GPIOMASK:
len = sprintf(page, "%d\n", gpiomask);
break;
}
}
len += 1;
if (*ppos < len) {
len = min_t(int, len - *ppos, count);
if (copy_to_user(buf, (page + *ppos), len)) {
kfree(page);
return -EFAULT;
}
*ppos += len;
} else {
len = 0;
}
return len;
}
static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, void *data)
{
#ifdef LINUX_2_4
struct inode *inode = file->f_dentry->d_inode;
struct proc_dir_entry *dent = inode->u.generic_ip;
#else
struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
#endif
char *page;
int ret = -EINVAL;
if ((page = kmalloc(count + 1, GFP_KERNEL)) == NULL)
return -ENOBUFS;
if (copy_from_user(page, buf, count)) {
kfree(page);
return -EINVAL;
}
page[count] = 0;
if (dent->data != NULL) {
struct prochandler_t *handler = (struct prochandler_t *) dent->data;
switch (handler->type) {
case PROC_LED: {
struct led_t *led = (struct led_t *) handler->ptr;
int p = (led->polarity == NORMAL ? 0 : 1);
if (!(led->gpio & GPIO_TYPE_EXTIF) && (led->gpio & gpiomask))
break;
if (page[0] == 'f') {
led->flash = 1;
led_flash(0);
} else {
led->flash = 0;
if (led->gpio & GPIO_TYPE_EXTIF) {
led->state = p ^ ((page[0] == '1') ? 1 : 0);
set_led_extif(led);
} else {
sb_gpioouten(sbh, led->gpio, led->gpio, GPIO_DRV_PRIORITY);
sb_gpiocontrol(sbh, led->gpio, 0, GPIO_DRV_PRIORITY);
sb_gpioout(sbh, led->gpio, ((p ^ (page[0] == '1')) ? led->gpio : 0), GPIO_DRV_PRIORITY);
}
}
break;
}
case PROC_GPIOMASK:
gpiomask = simple_strtoul(page, NULL, 16);
break;
}
ret = count;
}
kfree(page);
return ret;
}
struct event_t {
struct work_struct tq;
char buf[256];
char *argv[3];
char *envp[6];
};
static void hotplug_button(struct event_t *event)
{
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
call_usermodehelper (event->argv[0], event->argv, event->envp, 1);
#else
call_usermodehelper (event->argv[0], event->argv, event->envp);
#endif
kfree(event);
}
static void set_irqenable(int enabled)
{
unsigned int coreidx;
unsigned long flags;
chipcregs_t *cc;
spin_lock_irqsave(sbh_lock, flags);
coreidx = sb_coreidx(sbh);
if ((cc = sb_setcore(sbh, SB_CC, 0))) {
int intmask;
intmask = readl(&cc->intmask);
if (enabled)
intmask |= CI_GPIO;
else
intmask &= ~CI_GPIO;
writel(intmask, &cc->intmask);
}
sb_setcoreidx(sbh, coreidx);
spin_unlock_irqrestore(sbh_lock, flags);
}
static irqreturn_t button_handler(int irq, void *dev_id, struct pt_regs *regs)
{
struct button_t *b;
int in = sb_gpioin(sbh);
struct event_t *event;
set_irqenable(0);
for (b = platform.buttons; b->name; b++) {
if (b->gpio & gpiomask)
continue;
if (b->polarity != (in & b->gpio)) {
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;
INIT_WORK(&event->tq, (void *)(void *)hotplug_button, (void *)event);
schedule_work(&event->tq);
}
b->seen = jiffies;
b->polarity ^= b->gpio;
sb_gpiointpolarity(sbh, b->gpio, b->polarity, GPIO_DRV_PRIORITY);
}
}
set_irqenable(1);
return IRQ_HANDLED;
}
static struct timer_list led_timer = {
function: &led_flash
};
static void led_flash(unsigned long dummy) {
struct led_t *l;
unsigned mask = 0;
unsigned extif_blink = 0;
for (l = platform.leds; l->name; l++) {
if (l->flash) {
if (l->gpio & GPIO_TYPE_EXTIF) {
extif_blink = 1;
l->state = !l->state;
set_led_extif(l);
} else {
mask |= l->gpio;
}
}
}
mask &= ~gpiomask;
if (mask) {
unsigned val;
val = ~sb_gpioin(sbh);
val &= mask;
sb_gpioouten(sbh, mask, mask, GPIO_DRV_PRIORITY);
sb_gpiocontrol(sbh, mask, 0, GPIO_DRV_PRIORITY);
sb_gpioout(sbh, mask, val, GPIO_DRV_PRIORITY);
}
if (mask || extif_blink) {
mod_timer(&led_timer, jiffies + FLASH_TIME);
}
}
static void __init register_buttons(struct button_t *b)
{
int irq = sb_irq(sbh) + 2;
request_irq(irq, button_handler, SA_SHIRQ | SA_SAMPLE_RANDOM, "gpio", button_handler);
for (; b->name; b++) {
if (b->gpio & gpiomask)
continue;
sb_gpioouten(sbh, b->gpio,0, GPIO_DRV_PRIORITY);
sb_gpiocontrol(sbh, b->gpio,0, GPIO_DRV_PRIORITY);
b->polarity = sb_gpioin(sbh) & b->gpio;
sb_gpiointpolarity(sbh, b->gpio, b->polarity, GPIO_DRV_PRIORITY);
sb_gpiointmask(sbh, b->gpio, b->gpio, GPIO_DRV_PRIORITY);
}
set_irqenable(1);
}
static void __exit unregister_buttons(struct button_t *b)
{
int irq = sb_irq(sbh) + 2;
for (; b->name; b++)
sb_gpiointmask(sbh, b->gpio, 0, GPIO_DRV_PRIORITY);
free_irq(irq, button_handler);
}
static void __init register_leds(struct led_t *l)
{
struct proc_dir_entry *p;
leds = proc_mkdir("led", diag);
if (!leds)
return;
for(; l->name; l++) {
if (l->gpio & gpiomask)
continue;
if (l->gpio & GPIO_TYPE_EXTIF) {
l->state = 0;
set_led_extif(l);
} else {
sb_gpioouten(sbh, l->gpio, l->gpio, GPIO_DRV_PRIORITY);
sb_gpiocontrol(sbh, l->gpio, 0, GPIO_DRV_PRIORITY);
sb_gpioout(sbh, l->gpio, (l->polarity == NORMAL)?0:l->gpio, GPIO_DRV_PRIORITY);
}
if ((p = create_proc_entry(l->name, S_IRUSR, leds))) {
l->proc.type = PROC_LED;
l->proc.ptr = l;
p->data = (void *) &l->proc;
p->proc_fops = &diag_proc_fops;
}
}
}
static void __exit unregister_leds(struct led_t *l)
{
for(; l->name; l++)
remove_proc_entry(l->name, leds);
remove_proc_entry("led", diag);
}
static void __exit diag_exit(void)
{
del_timer(&led_timer);
if (platform.buttons)
unregister_buttons(platform.buttons);
if (platform.leds)
unregister_leds(platform.leds);
remove_proc_entry("model", diag);
remove_proc_entry("gpiomask", diag);
remove_proc_entry("diag", NULL);
}
static struct prochandler_t proc_model = { .type = PROC_MODEL };
static struct prochandler_t proc_gpiomask = { .type = PROC_GPIOMASK };
static int __init diag_init(void)
{
static struct proc_dir_entry *p;
static struct platform_t *detected;
detected = platform_detect();
if (!detected) {
printk(MODULE_NAME ": Router model not detected.\n");
return -ENODEV;
}
memcpy(&platform, detected, sizeof(struct platform_t));
printk(MODULE_NAME ": Detected '%s'\n", platform.name);
if (!(diag = proc_mkdir("diag", NULL))) {
printk(MODULE_NAME ": proc_mkdir on /proc/diag failed\n");
return -EINVAL;
}
if ((p = create_proc_entry("model", S_IRUSR, diag))) {
p->data = (void *) &proc_model;
p->proc_fops = &diag_proc_fops;
}
if ((p = create_proc_entry("gpiomask", S_IRUSR | S_IWUSR, diag))) {
p->data = (void *) &proc_gpiomask;
p->proc_fops = &diag_proc_fops;
}
if (platform.buttons)
register_buttons(platform.buttons);
if (platform.leds)
register_leds(platform.leds);
return 0;
}
module_init(diag_init);
module_exit(diag_exit);
MODULE_AUTHOR("Mike Baker, Felix Fietkau / OpenWrt.org");
MODULE_LICENSE("GPL");
Reference in a new issue Copy permalink