+++ /dev/null
-/*
- * 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.
- *
- * Copyright (C) 2006 infineon
- * Copyright (C) 2007 John Crispin <blogic@openwrt.org>
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/version.h>
-#include <linux/types.h>
-#include <linux/fs.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <asm/uaccess.h>
-#include <asm/unistd.h>
-#include <linux/errno.h>
-#include <asm/ifxmips/ifxmips.h>
-#include <asm/ifxmips/ifxmips_gpio.h>
-#include <asm/ifxmips/ifxmips_pmu.h>
-#include <linux/leds.h>
-#include <linux/delay.h>
-
-#define DRVNAME "ifxmips_led"
-
-#define IFXMIPS_LED_CLK_EDGE IFXMIPS_LED_FALLING
-//#define IFXMIPS_LED_CLK_EDGE IFXMIPS_LED_RISING
-
-#define IFXMIPS_LED_SPEED IFXMIPS_LED_8HZ
-
-#define IFXMIPS_LED_GPIO_PORT 0
-
-#define IFXMIPS_MAX_LED 24
-
-struct ifxmips_led {
- struct led_classdev cdev;
- u8 bit;
-};
-
-void
-ifxmips_led_set (unsigned int led)
-{
- led &= 0xffffff;
- ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CPU0) | led, IFXMIPS_LED_CPU0);
-}
-EXPORT_SYMBOL(ifxmips_led_set);
-
-void
-ifxmips_led_clear (unsigned int led)
-{
- led = ~(led & 0xffffff);
- ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CPU0) & led, IFXMIPS_LED_CPU0);
-}
-EXPORT_SYMBOL(ifxmips_led_clear);
-
-void
-ifxmips_led_blink_set (unsigned int led)
-{
- led &= 0xffffff;
- ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON0) | led, IFXMIPS_LED_CON0);
-}
-EXPORT_SYMBOL(ifxmips_led_blink_set);
-
-void
-ifxmips_led_blink_clear (unsigned int led)
-{
- led = ~(led & 0xffffff);
- ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON0) & led, IFXMIPS_LED_CON0);
-}
-EXPORT_SYMBOL(ifxmips_led_blink_clear);
-
-void
-ifxmips_ledapi_set(struct led_classdev *led_cdev, enum led_brightness value)
-{
- struct ifxmips_led *led_dev = container_of(led_cdev, struct ifxmips_led, cdev);
-
- if(value)
- ifxmips_led_set(1 << led_dev->bit);
- else
- ifxmips_led_clear(1 << led_dev->bit);
-}
-
-void
-ifxmips_led_setup_gpio (void)
-{
- int i = 0;
-
- /* we need to setup pins SH,D,ST (4,5,6) */
- for (i = 4; i < 7; i++)
- {
- ifxmips_port_set_altsel0(IFXMIPS_LED_GPIO_PORT, i);
- ifxmips_port_clear_altsel1(IFXMIPS_LED_GPIO_PORT, i);
- ifxmips_port_set_dir_out(IFXMIPS_LED_GPIO_PORT, i);
- ifxmips_port_set_open_drain(IFXMIPS_LED_GPIO_PORT, i);
- }
-}
-
-static int
-ifxmips_led_probe(struct platform_device *dev)
-{
- int i = 0;
-
- ifxmips_led_setup_gpio();
-
- ifxmips_w32(0, IFXMIPS_LED_AR);
- ifxmips_w32(0, IFXMIPS_LED_CPU0);
- ifxmips_w32(0, IFXMIPS_LED_CPU1);
- ifxmips_w32(LED_CON0_SWU, IFXMIPS_LED_CON0);
- ifxmips_w32(0, IFXMIPS_LED_CON1);
-
- /* setup the clock edge that the shift register is triggered on */
- ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON0) & ~IFXMIPS_LED_EDGE_MASK, IFXMIPS_LED_CON0);
- ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON0) | IFXMIPS_LED_CLK_EDGE, IFXMIPS_LED_CON0);
-
- /* per default leds 15-0 are set */
- ifxmips_w32(IFXMIPS_LED_GROUP1 | IFXMIPS_LED_GROUP0, IFXMIPS_LED_CON1);
-
- /* leds are update periodically by the FPID */
- ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON1) & ~IFXMIPS_LED_UPD_MASK, IFXMIPS_LED_CON1);
- ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON1) | IFXMIPS_LED_UPD_SRC_FPI, IFXMIPS_LED_CON1);
-
- /* set led update speed */
- ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON1) & ~IFXMIPS_LED_MASK, IFXMIPS_LED_CON1);
- ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON1) | IFXMIPS_LED_SPEED, IFXMIPS_LED_CON1);
-
- /* adsl 0 and 1 leds are updated by the arc */
- ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON0) | IFXMIPS_LED_ADSL_SRC, IFXMIPS_LED_CON0);
-
- /* per default, the leds are turned on */
- ifxmips_pmu_enable(IFXMIPS_PMU_PWDCR_LED);
-
- for(i = 0; i < IFXMIPS_MAX_LED; i++)
- {
- struct ifxmips_led *tmp = kzalloc(sizeof(struct ifxmips_led), GFP_KERNEL);
- tmp->cdev.brightness_set = ifxmips_ledapi_set;
- tmp->cdev.name = kmalloc(sizeof("ifxmips:led:00"), GFP_KERNEL);
- sprintf((char*)tmp->cdev.name, "ifxmips:led:%02d", i);
- tmp->cdev.default_trigger = NULL;
- tmp->bit = i;
- led_classdev_register(&dev->dev, &tmp->cdev);
- }
-
- return 0;
-}
-
-static int
-ifxmips_led_remove(struct platform_device *pdev)
-{
- return 0;
-}
-
-static struct
-platform_driver ifxmips_led_driver = {
- .probe = ifxmips_led_probe,
- .remove = ifxmips_led_remove,
- .driver = {
- .name = DRVNAME,
- .owner = THIS_MODULE,
- },
-};
-
-int __init
-ifxmips_led_init (void)
-{
- int ret = platform_driver_register(&ifxmips_led_driver);
- if (ret)
- printk(KERN_INFO "ifxmips_led: Error registering platfom driver!");
-
- return ret;
-}
-
-void __exit
-ifxmips_led_exit (void)
-{
- platform_driver_unregister(&ifxmips_led_driver);
-}
-
-module_init(ifxmips_led_init);
-module_exit(ifxmips_led_exit);
projects / openwrt / svn-archive / archive.git / blobdiff