From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.pengutronix.de ([2001:6f8:1178:4:290:27ff:fe1d:cc33]) by canuck.infradead.org with esmtps (Exim 4.72 #1 (Red Hat Linux)) id 1PUcVA-0000OP-7I for barebox@lists.infradead.org; Mon, 20 Dec 2010 09:57:58 +0000 From: Sascha Hauer Date: Mon, 20 Dec 2010 10:53:50 +0100 Message-Id: <1292838831-25038-8-git-send-email-s.hauer@pengutronix.de> In-Reply-To: <1292838831-25038-1-git-send-email-s.hauer@pengutronix.de> References: <1292838831-25038-1-git-send-email-s.hauer@pengutronix.de> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: barebox-bounces@lists.infradead.org Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH 7/8] LED: Add trigger command To: barebox This patch allows controlling LED triggers vie the command line. Signed-off-by: Sascha Hauer --- commands/Kconfig | 8 ++++ commands/Makefile | 1 + commands/trigger.c | 107 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 116 insertions(+), 0 deletions(-) create mode 100644 commands/trigger.c diff --git a/commands/Kconfig b/commands/Kconfig index 64e08bb..f137f47 100644 --- a/commands/Kconfig +++ b/commands/Kconfig @@ -379,4 +379,12 @@ config CMD_LED help include led command to control LEDs +config CMD_LED_TRIGGER + bool + depends on LED_TRIGGERS + prompt "trigger command" + help + The trigger command allows to control LED triggers from the command + line. + endmenu diff --git a/commands/Makefile b/commands/Makefile index 0820483..c89adcf 100644 --- a/commands/Makefile +++ b/commands/Makefile @@ -54,3 +54,4 @@ obj-$(CONFIG_CMD_MENU) += menu.o obj-$(CONFIG_CMD_PASSWD) += passwd.o obj-$(CONFIG_CMD_LOGIN) += login.o obj-$(CONFIG_CMD_LED) += led.o +obj-$(CONFIG_CMD_LED_TRIGGER) += trigger.o diff --git a/commands/trigger.c b/commands/trigger.c new file mode 100644 index 0000000..162da97 --- /dev/null +++ b/commands/trigger.c @@ -0,0 +1,107 @@ +/* + * LED trigger command support for barebox + * + * (C) Copyright 2010 Sascha Hauer, Pengutronix + * + * 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 +#include +#include +#include +#include + +#define LED_COMMAND_SET_TRIGGER 1 +#define LED_COMMAND_SHOW_INFO 2 +#define LED_COMMAND_DISABLE_TRIGGER 3 + +static char *trigger_names[] = { + [LED_TRIGGER_PANIC] = "panic", + [LED_TRIGGER_HEARTBEAT] = "heartbeat", + [LED_TRIGGER_NET_RX] = "net rx", + [LED_TRIGGER_NET_TX] = "net tx", + [LED_TRIGGER_NET_TXRX] = "net", +}; + +static int do_trigger(struct command *cmdtp, int argc, char *argv[]) +{ + struct led *led; + int i, opt, ret = 0; + int cmd = LED_COMMAND_SHOW_INFO; + unsigned long trigger = 0; + + while((opt = getopt(argc, argv, "t:d:")) > 0) { + switch(opt) { + case 't': + trigger = simple_strtoul(optarg, NULL, 0); + cmd = LED_COMMAND_SET_TRIGGER; + break; + case 'd': + trigger = simple_strtoul(optarg, NULL, 0); + cmd = LED_COMMAND_DISABLE_TRIGGER; + } + } + + switch (cmd) { + case LED_COMMAND_SHOW_INFO: + for (i = 0; i < LED_TRIGGER_MAX; i++) { + int led = led_get_trigger(i); + printf("%d: %s", i, trigger_names[i]); + if (led >= 0) + printf(" (led %d)", led); + printf("\n"); + } + break; + + case LED_COMMAND_DISABLE_TRIGGER: + led_set_trigger(trigger, NULL); + return 0; + case LED_COMMAND_SET_TRIGGER: + if (argc - optind != 1) + return COMMAND_ERROR_USAGE; + led = led_by_name_or_number(argv[optind]); + + if (!led) { + printf("no such led: %d\n", argv[optind]); + return 1; + } + + ret = led_set_trigger(trigger, led); + break; + } + + if (ret) + printf("trigger failed: %s\n", strerror(-ret)); + return ret ? 1 : 0; +} + +BAREBOX_CMD_HELP_START(trigger) +BAREBOX_CMD_HELP_USAGE("trigger [OPTIONS]\n") +BAREBOX_CMD_HELP_SHORT("control a LED trigger. Without options the currently assigned triggers are shown.\n") +BAREBOX_CMD_HELP_OPT ("-t ", "set a trigger for a led\n") +BAREBOX_CMD_HELP_OPT ("-d ", "disable a trigger\n") +BAREBOX_CMD_HELP_END + +BAREBOX_CMD_START(trigger) + .cmd = do_trigger, + .usage = "handle LED triggers", + BAREBOX_CMD_HELP(cmd_trigger_help) +BAREBOX_CMD_END + -- 1.7.2.3 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox