/* * $Id$ * * ADM5120 GPIO LED devices * * Copyright (C) 2007 OpenWrt.org * Copyright (C) 2007 Gabor Juhos <juhosg@freemail.hu> * * 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., 51 Franklin Street, Fifth Floor, * Boston, MA 02110-1301, USA. * */ #include <linux/kernel.h> #include <linux/init.h> #include <linux/platform_device.h> #include <linux/leds.h> #include <linux/err.h> #include <linux/gpio_leds.h> #include <asm/bootinfo.h> #include <asm/io.h> #include <asm/gpio.h> #include <asm/mach-adm5120/adm5120_info.h> #define NUM_LEDS_MAX 23 #define ADM5120_GPIO_xxxx 0x100 /* an unknown pin */ struct mach_data { unsigned long machtype; unsigned count; struct gpio_led_platform_data *data; }; struct adm5120_leddev { struct platform_device pdev; struct gpio_led_platform_data pdata; }; static int led_count = 0; static struct adm5120_leddev *led_devs[NUM_LEDS_MAX]; #define LED_ARRAY(n) \ static struct gpio_led_platform_data \ n ## _leds [] __initdata = #define LED_DATA(n,t,g,off,on) { \ .name = (n), \ .trigger = (t), \ .gpio = (g), \ .value_off = (off), \ .value_on = (on) \ } #define LED_STD(g,n,t) LED_DATA((n),(t),(g), 0, 1) #define LED_INV(g,n,t) LED_DATA((n),(t),(g), 1, 0) /* * 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 /* * Mikrotik boards */ #if defined(CONFIG_LEDS_ADM5120_EXPERIMENTAL) LED_ARRAY(rb100) { /* FIXME: untested */ LED_STD(ADM5120_GPIO_PIN6, "power", NULL ), LED_STD(ADM5120_GPIO_PIN3, "user", NULL ), }; #endif /* * 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 #if defined(CONFIG_LEDS_ADM5120_EXPERIMENTAL) LED_ARRAY(np28g) { /* 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, "wan", NULL ), LED_STD(ADM5120_GPIO_xxxx, "wlan", NULL ), LED_STD(ADM5120_GPIO_xxxx, "usb1", NULL ), LED_STD(ADM5120_GPIO_xxxx, "usb2", NULL ), LED_STD(ADM5120_GPIO_xxxx, "usb3", NULL ), LED_STD(ADM5120_GPIO_xxxx, "usb4", NULL ), LED_INV(ADM5120_GPIO_PIN2, "power", NULL ), LED_STD(ADM5120_GPIO_xxxx, "diag", NULL ), }; #endif 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 ), }; 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), \ .count = ARRAY_SIZE(n ## _leds), \ .data = n ## _leds \ } static struct mach_data machines[] __initdata = { MACH_DATA(MACH_ADM5120_GENERIC, generic), MACH_DATA(MACH_ADM5120_P334WT, p334wt), 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), #if defined(CONFIG_LEDS_ADM5120_EXPERIMENTAL) MACH_DATA(MACH_ADM5120_P334, p334), MACH_DATA(MACH_ADM5120_P335, p335), MACH_DATA(MACH_ADM5120_RB_111, rb100), MACH_DATA(MACH_ADM5120_RB_112, rb100), MACH_DATA(MACH_ADM5120_NP27G, np27g), MACH_DATA(MACH_ADM5120_NP28G, np28g), MACH_DATA(MACH_ADM5120_NP28GHS, np28g), #endif }; static struct adm5120_leddev * __init create_leddev(struct gpio_led_platform_data *data) { struct adm5120_leddev *p; p = kzalloc(sizeof(*p), GFP_KERNEL); if (p == NULL) return NULL; memcpy(&p->pdata, data, sizeof(p->pdata)); p->pdev.dev.platform_data = &p->pdata; return p; } static void destroy_leddev(struct adm5120_leddev *led) { if (led) kfree(led); } 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) { /* the board is not yet supported */ ret = -EINVAL; goto err; } for (i=0; i < mach->count; i++) { led_devs[i] = create_leddev(&mach->data[i]); if (led_devs[i] == NULL) { ret = -ENOMEM; goto err_destroy; } led_devs[i]->pdev.name = "gpio-led"; led_devs[i]->pdev.id = i; } for (i=0; i < mach->count; i++) { ret = platform_device_register(&led_devs[i]->pdev); if (ret) goto err_unregister; } led_count = mach->count; 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++) destroy_leddev(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); destroy_leddev(led_devs[i]); } } module_init(adm5120_leds_init); module_exit(adm5120_leds_exit); MODULE_AUTHOR("Gabor Juhos <juhosg@freemail.hu>"); MODULE_DESCRIPTION(DRV_DESC); MODULE_LICENSE("GPL");