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 1PUcRu-0000MS-H7 for barebox@lists.infradead.org; Mon, 20 Dec 2010 09:54:58 +0000 From: Sascha Hauer Date: Mon, 20 Dec 2010 10:53:49 +0100 Message-Id: <1292838831-25038-7-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 6/8] LED: Add led command To: barebox This patch allows controlling LEDs via the command line. Signed-off-by: Sascha Hauer --- commands/Kconfig | 7 ++++ commands/Makefile | 1 + commands/led.c | 90 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 98 insertions(+), 0 deletions(-) create mode 100644 commands/led.c diff --git a/commands/Kconfig b/commands/Kconfig index 5416073..64e08bb 100644 --- a/commands/Kconfig +++ b/commands/Kconfig @@ -372,4 +372,11 @@ config CMD_I2C include i2c_probe, i2c_read and i2c_write commands to communicate on i2c bus. +config CMD_LED + bool + depends on LED + prompt "led command" + help + include led command to control LEDs + endmenu diff --git a/commands/Makefile b/commands/Makefile index ca30b5f..0820483 100644 --- a/commands/Makefile +++ b/commands/Makefile @@ -53,3 +53,4 @@ obj-$(CONFIG_CMD_UBI) += ubi.o obj-$(CONFIG_CMD_MENU) += menu.o obj-$(CONFIG_CMD_PASSWD) += passwd.o obj-$(CONFIG_CMD_LOGIN) += login.o +obj-$(CONFIG_CMD_LED) += led.o diff --git a/commands/led.c b/commands/led.c new file mode 100644 index 0000000..360ce7c --- /dev/null +++ b/commands/led.c @@ -0,0 +1,90 @@ +/* + * LED 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 + +static int do_led(struct command *cmdtp, int argc, char *argv[]) +{ + unsigned long value; + struct led *led; + int ret; + + if (argc == 1) { + int i = 0; + + printf("registered LEDs:\n"); + + while ((led = led_by_number(i))) { + printf("%-2d: name: %-10s max_value: %d\n", + i, led->name ? led->name : "none", + led->max_value); + i++; + } + return 0; + } + + if (argc != 3) + return COMMAND_ERROR_USAGE; + + led = led_by_name_or_number(argv[1]); + if (!led) { + printf("no such LED: %s\n", argv[1]); + return 1; + } + + value = simple_strtoul(argv[optind + 1], NULL, 0); + + ret = led_set(led, value); + if (ret < 0) { + perror("led"); + return 1; + } + + return 0; +} + +/** + * @page led_command + +The exact meaning of is unspecified. It can be a color in case of rgb +LEDs or a brightness if this is controllable. In most cases only 1 for enabled +is allowed. + +*/ + +BAREBOX_CMD_HELP_START(led) +BAREBOX_CMD_HELP_USAGE("led \n") +BAREBOX_CMD_HELP_SHORT("control the value of a LED. a value of 0 means disabled\n") +BAREBOX_CMD_HELP_SHORT("without arguments the available LEDs are listed\n") +BAREBOX_CMD_HELP_END + +BAREBOX_CMD_START(led) + .cmd = do_led, + .usage = "led ", + BAREBOX_CMD_HELP(cmd_led_help) +BAREBOX_CMD_END -- 1.7.2.3 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox