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Diffstat (limited to 'board/bf537-stamp/cmd_bf537led.c')
-rw-r--r--board/bf537-stamp/cmd_bf537led.c201
1 files changed, 0 insertions, 201 deletions
diff --git a/board/bf537-stamp/cmd_bf537led.c b/board/bf537-stamp/cmd_bf537led.c
deleted file mode 100644
index 7d8f3ea..0000000
--- a/board/bf537-stamp/cmd_bf537led.c
+++ /dev/null
@@ -1,201 +0,0 @@
-/*
- * U-boot - cmd_bf537led.c
- *
- * Copyright (C) 2006 Aaron Gage, Ocean Optics Inc.
- *
- * 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 <config.h>
-#include <command.h>
-#include <asm/blackfin.h>
-#include <asm/string.h>
-#ifdef CONFIG_BF537_STAMP_LEDCMD
-
-/* Define the command usage in a reusable way */
-#define USAGE_LONG \
- "led <number> <action>\n" \
- " <number> - Index (0-5) of LED to change, or \"all\"\n" \
- " <action> - Must be one of:\n" \
- " on off toggle"
-
-/* Number of LEDs supported by the board */
-#define NUMBER_LEDS 6
-/* The BF537 stamp has 6 LEDs. This mask indicates that all should be lit. */
-#define LED_ALL_MASK 0x003F
-
-void show_cmd_usage(void);
-void set_led_state(int index, int state);
-void configure_GPIO_to_output(int index);
-
-/* Map of LEDs according to their GPIO ports. This can be rearranged or
- * otherwise changed to account for different GPIO configurations.
- */
-int led_ports[] = { PF6, PF7, PF8, PF9, PF10, PF11 };
-
-#define ACTION_TOGGLE -1
-#define ACTION_OFF 0
-#define ACTION_ON 1
-
-#define LED_STATE_OFF 0
-#define LED_STATE_ON 1
-
-/* This is a trivial atoi implementation since we don't have one available */
-int atoi(char *string)
-{
- int length;
- int retval = 0;
- int i;
- int sign = 1;
-
- length = strlen(string);
- for (i = 0; i < length; i++) {
- if (0 == i && string[0] == '-') {
- sign = -1;
- continue;
- }
- if (string[i] > '9' || string[i] < '0') {
- break;
- }
- retval *= 10;
- retval += string[i] - '0';
- }
- retval *= sign;
- return retval;
-}
-
-int do_bf537led(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
-{
- int led_mask = 0;
- int led_current_state = 0;
- int action = ACTION_OFF;
- int temp;
-
- if (3 != argc) {
- /* Not enough arguments, so just show usage information */
- show_cmd_usage();
- return 1;
- }
-
- if (strcmp(argv[1], "all") == 0) {
- led_mask = LED_ALL_MASK;
- } else {
- temp = atoi(argv[1]);
- if (temp < 0 || temp >= NUMBER_LEDS) {
- printf("Invalid LED number [%s]\n", argv[1]);
- show_cmd_usage();
- return 2;
- }
- led_mask |= (1 << temp);
- }
-
- if (strcmp(argv[2], "off") == 0) {
- action = ACTION_OFF;
- } else if (strcmp(argv[2], "on") == 0) {
- action = ACTION_ON;
- } else if (strcmp(argv[2], "toggle") == 0) {
- action = ACTION_TOGGLE;
- } else {
- printf("Invalid action [%s]\n", argv[2]);
- show_cmd_usage();
- return 3;
- }
-
- for (temp = 0; temp < NUMBER_LEDS; temp++) {
- if ((led_mask & (1 << temp)) > 0) {
- /*
- * It is possible that the user has wired one of PF6-PF11 to
- * something other than an LED, so this will only change a pin
- * to output if the user has indicated a state change. This may
- * happen a lot, but this way is safer than just setting all pins
- * to output.
- */
- configure_GPIO_to_output(temp);
-
- led_current_state =
- ((*pPORTFIO & led_ports[temp]) >
- 0) ? LED_STATE_ON : LED_STATE_OFF;
- /*
- printf("LED state for index %d (%x) is %d\n", temp, led_ports[temp],
- led_current_state);
- printf("*pPORTFIO is %x\n", *pPORTFIO);
- */
- if (ACTION_ON == action
- || (ACTION_TOGGLE == action
- && 0 == led_current_state)) {
- printf("Turning LED %d on\n", temp);
- set_led_state(temp, LED_STATE_ON);
- } else {
- printf("Turning LED %d off\n", temp);
- set_led_state(temp, LED_STATE_OFF);
- }
- }
- }
-
- return 0;
-}
-
-/*
- * The GPIO pins that go to the LEDs on the BF537 stamp must be configured
- * as output. This function simply configures them that way. This could
- * be done to all of the GPIO lines at once, but if a user is using a
- * custom board, this will try to be nice and only change the GPIO lines
- * that the user specifically names.
- */
-void configure_GPIO_to_output(int index)
-{
- int port;
-
- port = led_ports[index];
-
- /* Clear the Port F Function Enable Register */
- *pPORTF_FER &= ~port;
- /* Set the Port F I/O direction register */
- *pPORTFIO_DIR |= port;
- /* Clear the Port F I/O Input Enable Register */
- *pPORTFIO_INEN &= ~port;
-}
-
-/* Enforce the given state on the GPIO line for the indicated LED */
-void set_led_state(int index, int state)
-{
- int port;
-
- port = led_ports[index];
-
- if (LED_STATE_OFF == state) {
- /* Clear the bit to turn off the LED */
- *pPORTFIO &= ~port;
- } else {
- /* Set the bit to turn on the LED */
- *pPORTFIO |= port;
- }
-}
-
-/* Display usage information */
-void show_cmd_usage()
-{
- printf("Usage:\n%s\n", USAGE_LONG);
-}
-
-/* Register information for u-boot to find this command */
-U_BOOT_CMD(led, 3, 1, do_bf537led,
- "Control BF537 stamp LEDs", USAGE_LONG);
-
-#endif