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357 lines
9.3 KiB
C
357 lines
9.3 KiB
C
/*
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* $Id$
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*
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* ADM5120 GPIO LED devices
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*
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* Copyright (C) 2007 OpenWrt.org
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* Copyright (C) 2007 Gabor Juhos <juhosg at openwrt.org>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/leds.h>
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#include <linux/err.h>
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#include <linux/io.h>
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#include <linux/leds.h>
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#include <asm/bootinfo.h>
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#include <asm/gpio.h>
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#include <adm5120_info.h>
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#define NUM_LEDS_MAX 23
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#define DRV_DESC "LED driver for the ADM5120 based boards"
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#define ADM5120_GPIO_xxxx 0x100 /* an unknown pin */
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struct mach_data {
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unsigned long machtype;
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unsigned nr_leds;
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struct gpio_led *leds;
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};
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struct adm5120_leddev {
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struct platform_device pdev;
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struct gpio_led led;
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struct gpio_led_platform_data pdata;
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};
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static int led_count;
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static struct adm5120_leddev *led_devs[NUM_LEDS_MAX];
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#define LED_ARRAY(n) \
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static struct gpio_led n ## _leds [] __initdata =
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#define LED_DATA(n, t, g, a) { \
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.name = (n), \
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.default_trigger = (t), \
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.gpio = (g), \
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.active_low = (a) \
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}
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#define LED_STD(g, n, t) LED_DATA((n), (t), (g), 0)
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#define LED_INV(g, n, t) LED_DATA((n), (t), (g), 1)
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/*
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* Compex boards
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*/
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#if defined(CONFIG_LEDS_ADM5120_EXPERIMENTAL)
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LED_ARRAY(np27g) { /* FIXME: untested */
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LED_STD(ADM5120_GPIO_xxxx, "lan1", NULL),
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LED_STD(ADM5120_GPIO_xxxx, "lan2", NULL),
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LED_STD(ADM5120_GPIO_xxxx, "lan3", NULL),
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LED_STD(ADM5120_GPIO_xxxx, "lan4", NULL),
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LED_STD(ADM5120_GPIO_xxxx, "wan_cond", NULL),
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LED_STD(ADM5120_GPIO_xxxx, "wlan", NULL),
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LED_STD(ADM5120_GPIO_xxxx, "wan_act", NULL),
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LED_STD(ADM5120_GPIO_xxxx, "usb1", NULL),
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LED_STD(ADM5120_GPIO_xxxx, "usb2", NULL),
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LED_INV(ADM5120_GPIO_PIN2, "power", NULL),
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LED_STD(ADM5120_GPIO_xxxx, "diag", NULL),
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};
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#endif
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#if defined(CONFIG_LEDS_ADM5120_EXPERIMENTAL)
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LED_ARRAY(np28g) { /* FIXME: untested */
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LED_STD(ADM5120_GPIO_xxxx, "lan1", NULL),
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LED_STD(ADM5120_GPIO_xxxx, "lan2", NULL),
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LED_STD(ADM5120_GPIO_xxxx, "lan3", NULL),
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LED_STD(ADM5120_GPIO_xxxx, "wan", NULL),
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LED_STD(ADM5120_GPIO_xxxx, "wlan", NULL),
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LED_STD(ADM5120_GPIO_xxxx, "usb1", NULL),
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LED_STD(ADM5120_GPIO_xxxx, "usb2", NULL),
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LED_STD(ADM5120_GPIO_xxxx, "usb3", NULL),
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LED_STD(ADM5120_GPIO_xxxx, "usb4", NULL),
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LED_INV(ADM5120_GPIO_PIN2, "power", NULL),
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LED_STD(ADM5120_GPIO_xxxx, "diag", NULL),
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};
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#endif
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LED_ARRAY(wp54g) {
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LED_INV(ADM5120_GPIO_PIN2, "diag", NULL),
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LED_INV(ADM5120_GPIO_PIN6, "wlan", NULL),
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LED_INV(ADM5120_GPIO_PIN7, "wan", NULL),
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LED_INV(ADM5120_GPIO_P0L0, "lan1", NULL),
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LED_INV(ADM5120_GPIO_P1L0, "lan2", NULL),
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};
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/*
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* Edimax boards
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*/
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LED_ARRAY(br6104k) {
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LED_STD(ADM5120_GPIO_PIN0, "power", NULL),
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LED_INV(ADM5120_GPIO_P0L1, "wan_speed", NULL),
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LED_INV(ADM5120_GPIO_P0L0, "wan_lnkact", NULL),
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LED_INV(ADM5120_GPIO_P1L1, "lan1_speed", NULL),
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LED_INV(ADM5120_GPIO_P1L0, "lan1_lnkact", NULL),
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LED_INV(ADM5120_GPIO_P2L1, "lan2_speed", NULL),
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LED_INV(ADM5120_GPIO_P2L0, "lan2_lnkact", NULL),
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LED_INV(ADM5120_GPIO_P3L1, "lan3_speed", NULL),
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LED_INV(ADM5120_GPIO_P3L0, "lan3_lnkact", NULL),
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LED_INV(ADM5120_GPIO_P4L1, "lan4_speed", NULL),
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LED_INV(ADM5120_GPIO_P4L0, "lan4_lnkact", NULL),
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};
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/*
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* Mikrotik boards
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*/
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#if defined(CONFIG_LEDS_ADM5120_EXPERIMENTAL)
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LED_ARRAY(rb100) { /* FIXME: untested */
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LED_STD(ADM5120_GPIO_PIN6, "power", NULL),
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LED_STD(ADM5120_GPIO_PIN3, "user", NULL),
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};
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#endif
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LED_ARRAY(rb133) {
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LED_STD(ADM5120_GPIO_PIN6, "power", NULL),
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LED_STD(ADM5120_GPIO_PIN5, "user", NULL),
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};
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/*
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* ZyXEL boards
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*/
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#if defined(CONFIG_LEDS_ADM5120_EXPERIMENTAL)
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LED_ARRAY(p334) { /* FIXME: untested */
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LED_INV(ADM5120_GPIO_xxxx, "power", NULL),
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LED_INV(ADM5120_GPIO_xxxx, "lan1", NULL),
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LED_INV(ADM5120_GPIO_xxxx, "lan2", NULL),
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LED_INV(ADM5120_GPIO_xxxx, "lan3", NULL),
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LED_INV(ADM5120_GPIO_xxxx, "lan4", NULL),
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LED_INV(ADM5120_GPIO_xxxx, "wan", NULL),
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};
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#endif
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LED_ARRAY(p334wt) {
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LED_INV(ADM5120_GPIO_PIN2, "power", NULL),
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LED_INV(ADM5120_GPIO_P3L0, "lan1", NULL),
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LED_INV(ADM5120_GPIO_P2L0, "lan2", NULL),
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LED_INV(ADM5120_GPIO_P1L0, "lan3", NULL),
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LED_INV(ADM5120_GPIO_P0L0, "lan4", NULL),
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LED_INV(ADM5120_GPIO_P4L0, "wan", NULL),
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LED_INV(ADM5120_GPIO_P4L2, "wlan", NULL),
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LED_INV(ADM5120_GPIO_P2L2, "otist", NULL),
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LED_INV(ADM5120_GPIO_P1L2, "hidden", NULL),
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};
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#if defined(CONFIG_LEDS_ADM5120_EXPERIMENTAL)
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LED_ARRAY(p335) { /* FIXME: untested */
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LED_INV(ADM5120_GPIO_PIN2, "power", NULL),
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LED_INV(ADM5120_GPIO_P3L0, "lan1", NULL),
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LED_INV(ADM5120_GPIO_P2L0, "lan2", NULL),
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LED_INV(ADM5120_GPIO_P1L0, "lan3", NULL),
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LED_INV(ADM5120_GPIO_P0L0, "lan4", NULL),
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LED_INV(ADM5120_GPIO_P4L0, "wan", NULL),
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LED_INV(ADM5120_GPIO_P4L2, "wlan", NULL),
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LED_INV(ADM5120_GPIO_P2L2, "otist", NULL),
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LED_INV(ADM5120_GPIO_xxxx, "usb", NULL),
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};
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#endif
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/*
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* Generic board
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*/
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LED_ARRAY(generic) {
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#if defined(CONFIG_LEDS_ADM5120_DIAG)
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LED_STD(ADM5120_GPIO_PIN0, "gpio0", NULL),
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LED_STD(ADM5120_GPIO_PIN1, "gpio1", NULL),
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LED_STD(ADM5120_GPIO_PIN2, "gpio2", NULL),
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LED_STD(ADM5120_GPIO_PIN3, "gpio3", NULL),
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LED_STD(ADM5120_GPIO_PIN4, "gpio4", NULL),
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LED_STD(ADM5120_GPIO_PIN5, "gpio5", NULL),
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LED_STD(ADM5120_GPIO_PIN6, "gpio6", NULL),
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LED_STD(ADM5120_GPIO_PIN7, "gpio7", NULL),
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LED_STD(ADM5120_GPIO_P0L0, "port0led0", NULL),
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LED_STD(ADM5120_GPIO_P0L1, "port0led1", NULL),
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LED_STD(ADM5120_GPIO_P0L2, "port0led2", NULL),
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LED_STD(ADM5120_GPIO_P1L0, "port1led0", NULL),
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LED_STD(ADM5120_GPIO_P1L1, "port1led1", NULL),
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LED_STD(ADM5120_GPIO_P1L2, "port1led2", NULL),
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LED_STD(ADM5120_GPIO_P2L0, "port2led0", NULL),
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LED_STD(ADM5120_GPIO_P2L1, "port2led1", NULL),
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LED_STD(ADM5120_GPIO_P2L2, "port2led2", NULL),
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LED_STD(ADM5120_GPIO_P3L0, "port3led0", NULL),
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LED_STD(ADM5120_GPIO_P3L1, "port3led1", NULL),
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LED_STD(ADM5120_GPIO_P3L2, "port3led2", NULL),
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LED_STD(ADM5120_GPIO_P4L0, "port4led0", NULL),
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LED_STD(ADM5120_GPIO_P4L1, "port4led1", NULL),
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LED_STD(ADM5120_GPIO_P4L2, "port4led2", NULL),
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#endif
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};
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#define MACH_DATA(m, n) { \
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.machtype = (m), \
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.nr_leds = ARRAY_SIZE(n ## _leds), \
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.leds = n ## _leds \
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}
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static struct mach_data machines[] __initdata = {
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MACH_DATA(MACH_ADM5120_GENERIC, generic),
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/* Compex */
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MACH_DATA(MACH_ADM5120_WP54AG, wp54g),
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MACH_DATA(MACH_ADM5120_WP54G, wp54g),
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MACH_DATA(MACH_ADM5120_WP54G_WRT, wp54g),
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MACH_DATA(MACH_ADM5120_WPP54AG, wp54g),
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MACH_DATA(MACH_ADM5120_WPP54G, wp54g),
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/* Edimax */
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MACH_DATA(MACH_ADM5120_BR6104K, br6104k),
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/* Mikrotik */
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MACH_DATA(MACH_ADM5120_RB_133, rb133),
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MACH_DATA(MACH_ADM5120_RB_133C, rb133),
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/* ZyXEL */
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MACH_DATA(MACH_ADM5120_P334WT, p334wt),
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#if defined(CONFIG_LEDS_ADM5120_EXPERIMENTAL)
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/* untested */
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MACH_DATA(MACH_ADM5120_P334, p334),
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MACH_DATA(MACH_ADM5120_P335, p335),
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MACH_DATA(MACH_ADM5120_RB_111, rb100),
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MACH_DATA(MACH_ADM5120_RB_112, rb100),
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MACH_DATA(MACH_ADM5120_NP27G, np27g),
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MACH_DATA(MACH_ADM5120_NP28G, np28g),
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MACH_DATA(MACH_ADM5120_NP28GHS, np28g),
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#endif
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};
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static struct adm5120_leddev * __init
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create_leddev(int id, struct gpio_led *led)
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{
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struct adm5120_leddev *p;
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p = kzalloc(sizeof(*p), GFP_KERNEL);
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if (p == NULL)
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return NULL;
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memcpy(&p->led, led, sizeof(p->led));
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p->pdev.name = "leds-gpio";
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p->pdev.id = id;
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p->pdev.dev.platform_data = &p->pdata;
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p->pdata.num_leds = 1;
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p->pdata.leds = &p->led;
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return p;
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}
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static struct mach_data * __init
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adm5120_leds_findmach(unsigned long machtype)
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{
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struct mach_data *mach;
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int i;
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mach = NULL;
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for (i = 0; i < ARRAY_SIZE(machines); i++) {
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if (machines[i].machtype == machtype) {
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mach = &machines[i];
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break;
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}
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};
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#if defined(CONFIG_LEDS_ADM5120_DIAG)
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if (mach == NULL)
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mach = machines;
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#endif
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return mach;
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}
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static int __init
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adm5120_leds_init(void)
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{
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struct mach_data *mach;
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int i, ret;
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if (mips_machgroup != MACH_GROUP_ADM5120) {
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ret = -EINVAL;
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goto err;
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}
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mach = adm5120_leds_findmach(mips_machtype);
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if (mach == NULL) {
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/* the board is not yet supported */
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ret = -EINVAL;
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goto err;
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}
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for (i = 0; i < mach->nr_leds; i++) {
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led_devs[i] = create_leddev(i, &mach->leds[i]);
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if (led_devs[i] == NULL) {
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ret = -ENOMEM;
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goto err_destroy;
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}
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}
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for (i = 0; i < mach->nr_leds; i++) {
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ret = platform_device_register(&led_devs[i]->pdev);
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if (ret)
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goto err_unregister;
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}
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led_count = mach->nr_leds;
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return 0;
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err_unregister:
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for (i--; i >= 0; i--)
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platform_device_unregister(&led_devs[i]->pdev);
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err_destroy:
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for (i = 0; i < led_count; i++)
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kfree(led_devs[i]);
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err:
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return ret;
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}
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static void __exit
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adm5120_leds_exit(void)
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{
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int i;
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for (i = 0; i < led_count; i++) {
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platform_device_unregister(&led_devs[i]->pdev);
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kfree(led_devs[i]);
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}
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}
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module_init(adm5120_leds_init);
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module_exit(adm5120_leds_exit);
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MODULE_AUTHOR("Gabor Juhos <juhosg at openwrt.org>");
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MODULE_DESCRIPTION(DRV_DESC);
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MODULE_LICENSE("GPL");
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