--- /dev/null
+/*
+ * $Id$
+ *
+ * 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(unknown) {
+#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_UNKNOWN, unknown),
+ 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");
+
--- /dev/null
+/*
+ * $Id$
+ *
+ * Driver for LEDs connected to GPIO lines
+ *
+ * Copyright (C) 2007 OpenWrt.org
+ * Copyright (C) 2007 Gabor Juhos <juhosg@freemail.hu>
+ *
+ * This file was derived from:
+ * /drivers/led/leds-s3c24xx.c
+ * (c) 2006 Simtec Electronics, Ben Dooks <ben@simtec.co.uk>
+ *
+ * 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/io.h>
+#include <asm/gpio.h>
+
+#define DRV_NAME "gpio-led"
+#define DRV_DESC "GPIO LEDs driver"
+
+struct gpio_led_device {
+ struct led_classdev cdev;
+ struct gpio_led_platform_data *pdata;
+};
+
+static inline struct gpio_led_device *pdev_to_led(struct platform_device *dev)
+{
+ return platform_get_drvdata(dev);
+}
+
+static inline struct gpio_led_device *class_to_led(struct led_classdev *led_cdev)
+{
+ return container_of(led_cdev, struct gpio_led_device, cdev);
+}
+
+static void gpio_led_set(struct led_classdev *led_cdev,
+ enum led_brightness brightness)
+{
+ struct gpio_led_device *led;
+ struct gpio_led_platform_data *pdata;
+
+ led = class_to_led(led_cdev);
+ pdata = led->pdata;
+
+ switch (brightness) {
+ case LED_OFF:
+ gpio_direction_output(pdata->gpio, pdata->value_off);
+ break;
+ default:
+ gpio_direction_output(pdata->gpio, pdata->value_on);
+ break;
+ }
+}
+
+static int __devinit gpio_led_probe(struct platform_device *dev)
+{
+ struct gpio_led_platform_data *pdata;
+ struct gpio_led_device *led;
+ int ret;
+
+ pdata = dev->dev.platform_data;
+ if (pdata == NULL) {
+ dev_err(&dev->dev, "no platform data, id=%d\n", dev->id);
+ ret = -EINVAL;
+ goto err;
+ }
+
+ if (pdata->name == NULL) {
+ dev_err(&dev->dev, "no led name specified\n");
+ ret = -EINVAL;
+ goto err;
+ }
+
+ ret = gpio_request(pdata->gpio, pdata->name);
+ if (ret) {
+ dev_err(&dev->dev, "gpio_request failed\n");
+ goto err;
+ }
+
+ led = kzalloc(sizeof(*led), GFP_KERNEL);
+ if (led == NULL) {
+ dev_err(&dev->dev, "no memory for device");
+ ret = -ENOMEM;
+ goto err_free_gpio;
+ }
+
+ platform_set_drvdata(dev, led);
+ led->pdata = pdata;
+ led->cdev.name = pdata->name;
+ led->cdev.brightness_set = gpio_led_set;
+#ifdef CONFIG_LEDS_TRIGGERS
+ led->cdev.default_trigger = pdata->trigger;
+#endif
+
+ ret = led_classdev_register(&dev->dev, &led->cdev);
+ if (ret < 0) {
+ dev_err(&dev->dev, "led_classdev_register failed");
+ goto err_free_led;
+ }
+
+ return 0;
+
+err_free_led:
+ kfree(led);
+err_free_gpio:
+ gpio_free(pdata->gpio);
+err:
+ return ret;
+}
+
+static int __devexit gpio_led_remove(struct platform_device *dev)
+{
+ struct gpio_led_device *led;
+ struct gpio_led_platform_data *pdata;
+
+ pdata = dev->dev.platform_data;
+
+ led = pdev_to_led(dev);
+ led_classdev_unregister(&led->cdev);
+ kfree(led);
+
+ gpio_free(pdata->gpio);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int gpio_led_suspend(struct platform_device *dev,
+ pm_message_t state)
+{
+ struct gpio_led_device *led;
+
+ led = pdev_to_led(dev);
+ led_classdev_suspend(&led->cdev);
+
+ return 0;
+}
+
+static int gpio_led_resume(struct platform_device *dev)
+{
+ struct gpio_led_device *led;
+
+ led = pdev_to_led(dev);
+ led_classdev_resume(&led->cdev);
+
+ return 0;
+}
+#endif /* CONFIG_PM */
+
+static struct platform_driver gpio_led_driver = {
+ .probe = gpio_led_probe,
+ .remove = __devexit_p(gpio_led_remove),
+#ifdef CONFIG_PM
+ .suspend = gpio_led_suspend,
+ .resume = gpio_led_resume,
+#endif
+ .driver = {
+ .name = DRV_NAME,
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init gpio_led_init(void)
+{
+ int ret;
+
+ ret = platform_driver_register(&gpio_led_driver);
+ if (ret)
+ printk(KERN_ALERT DRV_DESC " register failed\n");
+ else
+ printk(KERN_INFO DRV_DESC " registered\n");
+
+ return ret;
+}
+
+static void __exit gpio_led_exit(void)
+{
+ platform_driver_unregister(&gpio_led_driver);
+}
+
+module_init(gpio_led_init);
+module_exit(gpio_led_exit);
+
+MODULE_AUTHOR("Gabor Juhos <juhosg@freemail.hu>");
+MODULE_DESCRIPTION(DRV_DESC);
+MODULE_LICENSE("GPL");
projects / openwrt.git / commitdiff