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/*
* $Id$
*
* ADM5120 GPIO LED devices
*
* Copyright (C) 2007,2008 OpenWrt.org
* Copyright (C) 2007,2008 Gabor Juhos <juhosg at openwrt.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/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/leds.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/leds.h>
#include <asm/bootinfo.h>
#include <asm/gpio.h>
#include <adm5120_info.h>
#define NUM_LEDS_MAX 23
#define DRV_DESC "LED driver for the ADM5120 based boards"
#define ADM5120_GPIO_xxxx 0x100 /* an unknown pin */
struct mach_data {
unsigned long machtype;
unsigned nr_leds;
struct gpio_led *leds;
};
struct adm5120_leddev {
struct platform_device pdev;
struct gpio_led led;
struct gpio_led_platform_data pdata;
};
static int led_count;
static struct adm5120_leddev *led_devs[NUM_LEDS_MAX];
#define LED_ARRAY(n) \
static struct gpio_led n ## _leds [] __initdata =
#define LED_DATA(n, t, g, a) { \
.name = (n), \
.default_trigger = (t), \
.gpio = (g), \
.active_low = (a) \
}
#define LED_STD(g, n, t) LED_DATA((n), (t), (g), 0)
#define LED_INV(g, n, t) LED_DATA((n), (t), (g), 1)
/*
* Compex boards
*/
#if defined(CONFIG_LEDS_ADM5120_EXPERIMENTAL)
LED_ARRAY(np27g) { /* FIXME: untested */
LED_STD(ADM5120_GPIO_xxxx, "lan1", NULL),
LED_STD(ADM5120_GPIO_xxxx, "lan2", NULL),
LED_STD(ADM5120_GPIO_xxxx, "lan3", NULL),
LED_STD(ADM5120_GPIO_xxxx, "lan4", NULL),
LED_STD(ADM5120_GPIO_xxxx, "wan_cond", NULL),
LED_STD(ADM5120_GPIO_xxxx, "wlan", NULL),
LED_STD(ADM5120_GPIO_xxxx, "wan_act", NULL),
LED_STD(ADM5120_GPIO_xxxx, "usb1", NULL),
LED_STD(ADM5120_GPIO_xxxx, "usb2", NULL),
LED_INV(ADM5120_GPIO_PIN2, "power", NULL),
LED_STD(ADM5120_GPIO_xxxx, "diag", NULL),
};
#endif
LED_ARRAY(np28g) {
LED_INV(ADM5120_GPIO_PIN2, "diag", NULL),
LED_INV(ADM5120_GPIO_PIN3, "power", NULL),
LED_INV(ADM5120_GPIO_PIN6, "wan_cond", NULL),
LED_INV(ADM5120_GPIO_PIN7, "wifi", NULL),
LED_INV(ADM5120_GPIO_P0L2, "usb1", NULL),
LED_INV(ADM5120_GPIO_P1L0, "lan1", NULL),
LED_INV(ADM5120_GPIO_P1L2, "usb2", NULL),
LED_INV(ADM5120_GPIO_P2L0, "lan2", NULL),
LED_INV(ADM5120_GPIO_P2L2, "usb3", NULL),
LED_INV(ADM5120_GPIO_P3L0, "lan3", NULL),
LED_INV(ADM5120_GPIO_P3L2, "usb4", NULL),
LED_INV(ADM5120_GPIO_P4L0, "wan", NULL),
};
LED_ARRAY(wp54g) {
LED_INV(ADM5120_GPIO_PIN2, "diag", NULL),
LED_INV(ADM5120_GPIO_PIN6, "wlan", NULL),
LED_INV(ADM5120_GPIO_PIN7, "wan", NULL),
LED_INV(ADM5120_GPIO_P0L0, "lan1", NULL),
LED_INV(ADM5120_GPIO_P1L0, "lan2", NULL),
};
/*
* Edimax boards
*/
LED_ARRAY(br6104k) {
LED_STD(ADM5120_GPIO_PIN0, "power", NULL),
LED_INV(ADM5120_GPIO_P0L1, "wan_speed", NULL),
LED_INV(ADM5120_GPIO_P0L0, "wan_lnkact", NULL),
LED_INV(ADM5120_GPIO_P1L1, "lan1_speed", NULL),
LED_INV(ADM5120_GPIO_P1L0, "lan1_lnkact", NULL),
LED_INV(ADM5120_GPIO_P2L1, "lan2_speed", NULL),
LED_INV(ADM5120_GPIO_P2L0, "lan2_lnkact", NULL),
LED_INV(ADM5120_GPIO_P3L1, "lan3_speed", NULL),
LED_INV(ADM5120_GPIO_P3L0, "lan3_lnkact", NULL),
LED_INV(ADM5120_GPIO_P4L1, "lan4_speed", NULL),
LED_INV(ADM5120_GPIO_P4L0, "lan4_lnkact", NULL),
};
LED_ARRAY(br61x4wg) {
LED_STD(ADM5120_GPIO_PIN0, "power", NULL),
LED_STD(ADM5120_GPIO_PIN5, "wlan", NULL),
LED_INV(ADM5120_GPIO_P0L1, "wan_speed", NULL),
LED_INV(ADM5120_GPIO_P0L0, "wan_lnkact", NULL),
LED_INV(ADM5120_GPIO_P1L1, "lan1_speed", NULL),
LED_INV(ADM5120_GPIO_P1L0, "lan1_lnkact", NULL),
LED_INV(ADM5120_GPIO_P2L1, "lan2_speed", NULL),
LED_INV(ADM5120_GPIO_P2L0, "lan2_lnkact", NULL),
LED_INV(ADM5120_GPIO_P3L1, "lan3_speed", NULL),
LED_INV(ADM5120_GPIO_P3L0, "lan3_lnkact", NULL),
LED_INV(ADM5120_GPIO_P4L1, "lan4_speed", NULL),
LED_INV(ADM5120_GPIO_P4L0, "lan4_lnkact", NULL),
};
/*
* Mikrotik boards
*/
LED_ARRAY(rb100) {
LED_STD(ADM5120_GPIO_PIN3, "user", NULL),
LED_INV(ADM5120_GPIO_P0L1, "lan_speed", NULL),
LED_INV(ADM5120_GPIO_P0L0, "lan_lnkact", NULL),
};
LED_ARRAY(rb133) {
LED_STD(ADM5120_GPIO_PIN6, "power", NULL),
LED_STD(ADM5120_GPIO_PIN5, "user", NULL),
LED_INV(ADM5120_GPIO_P2L1, "lan1_speed", NULL), /* untested */
LED_INV(ADM5120_GPIO_P2L0, "lan1_lnkact", NULL), /* untested */
};
LED_ARRAY(rb133c) {
LED_STD(ADM5120_GPIO_PIN6, "power", NULL),
LED_STD(ADM5120_GPIO_PIN5, "user", NULL),
LED_INV(ADM5120_GPIO_P2L1, "lan1_speed", NULL), /* untested */
LED_INV(ADM5120_GPIO_P2L0, "lan1_lnkact", NULL), /* untested */
LED_INV(ADM5120_GPIO_P1L1, "lan2_speed", NULL), /* untested */
LED_INV(ADM5120_GPIO_P1L0, "lan2_lnkact", NULL), /* untested */
LED_INV(ADM5120_GPIO_P0L1, "lan3_speed", NULL), /* untested */
LED_INV(ADM5120_GPIO_P0L0, "lan3_lnkact", NULL), /* untested */
};
LED_ARRAY(rb153) {
LED_STD(ADM5120_GPIO_PIN5, "user", NULL),
LED_INV(ADM5120_GPIO_P0L1, "lan1_speed", NULL),
LED_INV(ADM5120_GPIO_P0L0, "lan1_lnkact", NULL),
LED_INV(ADM5120_GPIO_P1L1, "lan5_speed", NULL),
LED_INV(ADM5120_GPIO_P1L0, "lan5_lnkact", NULL),
LED_INV(ADM5120_GPIO_P2L1, "lan4_speed", NULL),
LED_INV(ADM5120_GPIO_P2L0, "lan4_lnkact", NULL),
LED_INV(ADM5120_GPIO_P3L1, "lan3_speed", NULL),
LED_INV(ADM5120_GPIO_P3L0, "lan3_lnkact", NULL),
LED_INV(ADM5120_GPIO_P4L1, "lan2_speed", NULL),
LED_INV(ADM5120_GPIO_P4L0, "lan2_lnkact", NULL),
};
/*
* ZyXEL boards
*/
#if defined(CONFIG_LEDS_ADM5120_EXPERIMENTAL)
LED_ARRAY(p334) { /* FIXME: untested */
LED_INV(ADM5120_GPIO_xxxx, "power", NULL),
LED_INV(ADM5120_GPIO_xxxx, "lan1", NULL),
LED_INV(ADM5120_GPIO_xxxx, "lan2", NULL),
LED_INV(ADM5120_GPIO_xxxx, "lan3", NULL),
LED_INV(ADM5120_GPIO_xxxx, "lan4", NULL),
LED_INV(ADM5120_GPIO_xxxx, "wan", NULL),
};
#endif
LED_ARRAY(p334wt) {
LED_INV(ADM5120_GPIO_PIN2, "power", NULL),
LED_INV(ADM5120_GPIO_P3L0, "lan1", NULL),
LED_INV(ADM5120_GPIO_P2L0, "lan2", NULL),
LED_INV(ADM5120_GPIO_P1L0, "lan3", NULL),
LED_INV(ADM5120_GPIO_P0L0, "lan4", NULL),
LED_INV(ADM5120_GPIO_P4L0, "wan", NULL),
LED_INV(ADM5120_GPIO_P4L2, "wlan", NULL),
LED_INV(ADM5120_GPIO_P2L2, "otist", NULL),
LED_INV(ADM5120_GPIO_P1L2, "hidden", NULL),
};
#if defined(CONFIG_LEDS_ADM5120_EXPERIMENTAL)
LED_ARRAY(p335) { /* FIXME: untested */
LED_INV(ADM5120_GPIO_PIN2, "power", NULL),
LED_INV(ADM5120_GPIO_P3L0, "lan1", NULL),
LED_INV(ADM5120_GPIO_P2L0, "lan2", NULL),
LED_INV(ADM5120_GPIO_P1L0, "lan3", NULL),
LED_INV(ADM5120_GPIO_P0L0, "lan4", NULL),
LED_INV(ADM5120_GPIO_P4L0, "wan", NULL),
LED_INV(ADM5120_GPIO_P4L2, "wlan", NULL),
LED_INV(ADM5120_GPIO_P2L2, "otist", NULL),
LED_INV(ADM5120_GPIO_xxxx, "usb", NULL),
};
#endif
/*
* Generic board
*/
LED_ARRAY(generic) {
#if defined(CONFIG_LEDS_ADM5120_DIAG)
LED_STD(ADM5120_GPIO_PIN0, "gpio0", NULL),
LED_STD(ADM5120_GPIO_PIN1, "gpio1", NULL),
LED_STD(ADM5120_GPIO_PIN2, "gpio2", NULL),
LED_STD(ADM5120_GPIO_PIN3, "gpio3", NULL),
LED_STD(ADM5120_GPIO_PIN4, "gpio4", NULL),
LED_STD(ADM5120_GPIO_PIN5, "gpio5", NULL),
LED_STD(ADM5120_GPIO_PIN6, "gpio6", NULL),
LED_STD(ADM5120_GPIO_PIN7, "gpio7", NULL),
LED_STD(ADM5120_GPIO_P0L0, "port0led0", NULL),
LED_STD(ADM5120_GPIO_P0L1, "port0led1", NULL),
LED_STD(ADM5120_GPIO_P0L2, "port0led2", NULL),
LED_STD(ADM5120_GPIO_P1L0, "port1led0", NULL),
LED_STD(ADM5120_GPIO_P1L1, "port1led1", NULL),
LED_STD(ADM5120_GPIO_P1L2, "port1led2", NULL),
LED_STD(ADM5120_GPIO_P2L0, "port2led0", NULL),
LED_STD(ADM5120_GPIO_P2L1, "port2led1", NULL),
LED_STD(ADM5120_GPIO_P2L2, "port2led2", NULL),
LED_STD(ADM5120_GPIO_P3L0, "port3led0", NULL),
LED_STD(ADM5120_GPIO_P3L1, "port3led1", NULL),
LED_STD(ADM5120_GPIO_P3L2, "port3led2", NULL),
LED_STD(ADM5120_GPIO_P4L0, "port4led0", NULL),
LED_STD(ADM5120_GPIO_P4L1, "port4led1", NULL),
LED_STD(ADM5120_GPIO_P4L2, "port4led2", NULL),
#endif
};
#define MACH_DATA(m, n) { \
.machtype = (m), \
.nr_leds = ARRAY_SIZE(n ## _leds), \
.leds = n ## _leds \
}
static struct mach_data machines[] __initdata = {
MACH_DATA(MACH_ADM5120_GENERIC, generic),
/* Compex */
MACH_DATA(MACH_ADM5120_NP28G, np28g),
MACH_DATA(MACH_ADM5120_NP28GHS, np28g),
MACH_DATA(MACH_ADM5120_WP54AG, wp54g),
MACH_DATA(MACH_ADM5120_WP54G, wp54g),
MACH_DATA(MACH_ADM5120_WP54G_WRT, wp54g),
MACH_DATA(MACH_ADM5120_WPP54AG, wp54g),
MACH_DATA(MACH_ADM5120_WPP54G, wp54g),
/* Edimax */
MACH_DATA(MACH_ADM5120_BR6104K, br6104k),
MACH_DATA(MACH_ADM5120_BR61x4WG, br61x4wg),
/* Mikrotik */
MACH_DATA(MACH_ADM5120_RB_111, rb100),
MACH_DATA(MACH_ADM5120_RB_112, rb100),
MACH_DATA(MACH_ADM5120_RB_133, rb133),
MACH_DATA(MACH_ADM5120_RB_133C, rb133c),
MACH_DATA(MACH_ADM5120_RB_153, rb153),
/* ZyXEL */
MACH_DATA(MACH_ADM5120_P334WT, p334wt),
#if defined(CONFIG_LEDS_ADM5120_EXPERIMENTAL)
/* untested */
MACH_DATA(MACH_ADM5120_P334, p334),
MACH_DATA(MACH_ADM5120_P335, p335),
MACH_DATA(MACH_ADM5120_NP27G, np27g),
#endif
};
static struct adm5120_leddev * __init
create_leddev(int id, struct gpio_led *led)
{
struct adm5120_leddev *p;
p = kzalloc(sizeof(*p), GFP_KERNEL);
if (p == NULL)
return NULL;
memcpy(&p->led, led, sizeof(p->led));
p->pdev.name = "leds-gpio";
p->pdev.id = id;
p->pdev.dev.platform_data = &p->pdata;
p->pdata.num_leds = 1;
p->pdata.leds = &p->led;
return p;
}
static struct mach_data * __init
adm5120_leds_findmach(unsigned long machtype)
{
struct mach_data *mach;
int i;
mach = NULL;
for (i = 0; i < ARRAY_SIZE(machines); i++) {
if (machines[i].machtype == machtype) {
mach = &machines[i];
break;
}
};
#if defined(CONFIG_LEDS_ADM5120_DIAG)
if (mach == NULL)
mach = machines;
#endif
return mach;
}
static int __init
adm5120_leds_init(void)
{
struct mach_data *mach;
int i, ret;
if (mips_machgroup != MACH_GROUP_ADM5120) {
ret = -EINVAL;
goto err;
}
mach = adm5120_leds_findmach(mips_machtype);
if (mach == NULL) {
printk(KERN_ERR "leds-adm5120: unsupported board\n");
ret = -EINVAL;
goto err;
}
for (i = 0; i < mach->nr_leds; i++) {
led_devs[i] = create_leddev(i, &mach->leds[i]);
if (led_devs[i] == NULL) {
ret = -ENOMEM;
goto err_destroy;
}
}
for (i = 0; i < mach->nr_leds; i++) {
ret = platform_device_register(&led_devs[i]->pdev);
if (ret)
goto err_unregister;
}
led_count = mach->nr_leds;
return 0;
err_unregister:
for (i--; i >= 0; i--)
platform_device_unregister(&led_devs[i]->pdev);
err_destroy:
for (i = 0; i < led_count; i++)
kfree(led_devs[i]);
err:
return ret;
}
static void __exit
adm5120_leds_exit(void)
{
int i;
for (i = 0; i < led_count; i++) {
platform_device_unregister(&led_devs[i]->pdev);
kfree(led_devs[i]);
}
}
module_init(adm5120_leds_init);
module_exit(adm5120_leds_exit);
MODULE_AUTHOR("Gabor Juhos <juhosg at openwrt.org>");
MODULE_DESCRIPTION(DRV_DESC);
MODULE_LICENSE("GPL v2");
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