diff options
Diffstat (limited to 'cpu/mpc8260/status_led.c')
| -rw-r--r-- | cpu/mpc8260/status_led.c | 160 |
1 files changed, 0 insertions, 160 deletions
diff --git a/cpu/mpc8260/status_led.c b/cpu/mpc8260/status_led.c deleted file mode 100644 index 0174e39..0000000 --- a/cpu/mpc8260/status_led.c +++ /dev/null @@ -1,160 +0,0 @@ -/* - * (C) Copyright 2000 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * 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 - */ - -#include <common.h> -#include <status_led.h> - -/* - * The purpose of this code is to signal the operational status of a - * target which usually boots over the network; while running in - * PCBoot, a status LED is blinking. As soon as a valid BOOTP reply - * message has been received, the LED is turned off. The Linux - * kernel, once it is running, will start blinking the LED again, - * with another frequency. - */ - -/* ------------------------------------------------------------------------- */ - -#ifdef CONFIG_STATUS_LED - -typedef struct { - ulong mask; - int state; - int period; - int cnt; -} led_dev_t; - -led_dev_t led_dev[] = { - { STATUS_LED_BIT, - STATUS_LED_STATE, - STATUS_LED_PERIOD, - 0, - }, -#if defined(STATUS_LED_BIT1) - { STATUS_LED_BIT1, - STATUS_LED_STATE1, - STATUS_LED_PERIOD1, - 0, - }, -#endif -#if defined(STATUS_LED_BIT2) - { STATUS_LED_BIT2, - STATUS_LED_STATE2, - STATUS_LED_PERIOD2, - 0, - }, -#endif -}; - -#define MAX_LED_DEV (sizeof(led_dev)/sizeof(led_dev_t)) - -static int status_led_init_done = 0; - -static void status_led_init (void) -{ - volatile immap_t *immr = (immap_t *)CFG_IMMR; - int i; - - for (i=0; i<MAX_LED_DEV; ++i) { - led_dev_t *ld = &led_dev[i]; - - immr->STATUS_LED_PAR &= ~(ld->mask); -#ifdef STATUS_LED_ODR - immr->STATUS_LED_ODR &= ~(ld->mask); -#endif -#if (STATUS_LED_ACTIVE == 0) - if (ld->state == STATUS_LED_ON) - immr->STATUS_LED_DAT &= ~(ld->mask); - else - immr->STATUS_LED_DAT |= ld->mask ; -#else - if (ld->state == STATUS_LED_ON) - immr->STATUS_LED_DAT |= ld->mask ; - else - immr->STATUS_LED_DAT &= ~(ld->mask); -#endif - immr->STATUS_LED_DIR |= ld->mask ; - } - - status_led_init_done = 1; -} - -void status_led_tick (ulong timestamp) -{ - volatile immap_t *immr = (immap_t *)CFG_IMMR; - int i; - - if (!status_led_init_done) - status_led_init(); - - for (i=0; i<MAX_LED_DEV; ++i) { - led_dev_t *ld = &led_dev[i]; - - if (ld->state != STATUS_LED_BLINKING) - continue; - - if (++(ld->cnt) >= ld->period) { - immr->STATUS_LED_DAT ^= ld->mask; - ld->cnt -= ld->period; - } - } -} - -void status_led_set (int led, int state) -{ - volatile immap_t *immr = (immap_t *)CFG_IMMR; - led_dev_t *ld; - - if (led < 0 || led >= MAX_LED_DEV) - return; - - if (!status_led_init_done) - status_led_init(); - - ld = &led_dev[led]; - - switch (state) { - default: - return; - case STATUS_LED_BLINKING: - ld->cnt = 0; /* always start with full period */ - /* fall through */ /* always start with LED _ON_ */ - case STATUS_LED_ON: -#if (STATUS_LED_ACTIVE == 0) - immr->STATUS_LED_DAT &= ~(ld->mask); -#else - immr->STATUS_LED_DAT |= ld->mask ; -#endif - break; - case STATUS_LED_OFF: -#if (STATUS_LED_ACTIVE == 0) - immr->STATUS_LED_DAT |= ld->mask ; -#else - immr->STATUS_LED_DAT &= ~(ld->mask); -#endif - break; - } - ld->state = state; -} - -#endif /* CONFIG_STATUS_LED */ |