parent
d62589d5fd
commit
6a30c4ca62
@ -0,0 +1,168 @@ |
||||
/*
|
||||
* (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 <mpc8xx.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 |
||||
#if defined(STATUS_LED_BIT3) |
||||
{ STATUS_LED_BIT3, |
||||
STATUS_LED_STATE3, |
||||
STATUS_LED_PERIOD3, |
||||
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 */ |
@ -0,0 +1,46 @@ |
||||
#
|
||||
# (C) Copyright 2001
|
||||
# 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 $(TOPDIR)/config.mk |
||||
|
||||
#CFLAGS += -DDEBUG
|
||||
|
||||
LIB = librtc.a
|
||||
|
||||
OBJS = date.o ds1302.o ds1306.o ds1337.o ds1556.o ds174x.o \
|
||||
m41t11.o m48t35ax.o mc146818.o mk48t59.o \
|
||||
mpc8xx.o pcf8563.o
|
||||
|
||||
all: $(LIB) |
||||
|
||||
$(LIB): $(START) $(OBJS) |
||||
$(AR) crv $@ $(OBJS)
|
||||
|
||||
#########################################################################
|
||||
|
||||
.depend: Makefile $(OBJS:.o=.c) |
||||
$(CC) -M $(CFLAGS) $(OBJS:.o=.c) > $@
|
||||
|
||||
sinclude .depend |
||||
|
||||
#########################################################################
|
Loading…
Reference in new issue