diff options
Diffstat (limited to 'target/linux/ifxmips/files/drivers/leds/leds-ifxmips.c')
| -rw-r--r-- | target/linux/ifxmips/files/drivers/leds/leds-ifxmips.c | 197 |
1 files changed, 0 insertions, 197 deletions
diff --git a/target/linux/ifxmips/files/drivers/leds/leds-ifxmips.c b/target/linux/ifxmips/files/drivers/leds/leds-ifxmips.c deleted file mode 100644 index 0716f3d775..0000000000 --- a/target/linux/ifxmips/files/drivers/leds/leds-ifxmips.c +++ /dev/null @@ -1,197 +0,0 @@ -/* - * 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/slab.h> -#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 <linux/uaccess.h> -#include <linux/unistd.h> -#include <linux/errno.h> -#include <linux/leds.h> -#include <linux/delay.h> - -#include <ifxmips.h> -#include <ifxmips_gpio.h> -#include <ifxmips_pmu.h> - -#define DRVNAME "ifxmips_led" - -/* might need to be changed depending on shift register used on the pcb */ -#if 1 -#define IFXMIPS_LED_CLK_EDGE IFXMIPS_LED_FALLING -#else -#define IFXMIPS_LED_CLK_EDGE IFXMIPS_LED_RISING -#endif - -#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); - -static 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; - - /* leds are controlled via a shift register - we need to setup pins SH,D,ST (4,5,6) to make it work */ - 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); |