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 bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1Z2Cuv-0004sa-SI for barebox@lists.infradead.org; Tue, 09 Jun 2015 06:21:47 +0000 From: Sascha Hauer Date: Tue, 9 Jun 2015 08:21:04 +0200 Message-Id: <1433830875-31119-2-git-send-email-s.hauer@pengutronix.de> In-Reply-To: <1433830875-31119-1-git-send-email-s.hauer@pengutronix.de> References: <1433830875-31119-1-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" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH 01/12] console: Add functions to get/set active state of console To: Barebox List Currently code needs to fiddle with the active parameter of a console device directly to enable/disable consoles. Add console_set_active() to set the status and console_get_active() to get the current status. Signed-off-by: Sascha Hauer --- common/console.c | 87 +++++++++++++++++++++++++++++++++---------------------- include/console.h | 4 +++ 2 files changed, 57 insertions(+), 34 deletions(-) diff --git a/common/console.c b/common/console.c index 0c32f06..53030b5 100644 --- a/common/console.c +++ b/common/console.c @@ -58,32 +58,14 @@ static struct kfifo __console_output_fifo; static struct kfifo *console_input_fifo = &__console_input_fifo; static struct kfifo *console_output_fifo = &__console_output_fifo; -static int console_std_set(struct device_d *dev, struct param_d *param, - const char *val) +int console_set_active(struct console_device *cdev, unsigned flag) { - struct console_device *cdev = to_console_dev(dev); - char active[4]; - unsigned int flag = 0, i = 0; - int ret; - - if (val) { - if (strchr(val, 'i') && cdev->getc) { - active[i++] = 'i'; - flag |= CONSOLE_STDIN; - } - - if (cdev->putc) { - if (strchr(val, 'o')) { - active[i++] = 'o'; - flag |= CONSOLE_STDOUT; - } + int ret, i; - if (strchr(val, 'e')) { - active[i++] = 'e'; - flag |= CONSOLE_STDERR; - } - } - } + if (!cdev->getc) + flag &= ~CONSOLE_STDIN; + if (!cdev->putc) + flag &= ~(CONSOLE_STDOUT | CONSOLE_STDERR); if (flag && !cdev->f_active) { /* The device is being activated, set its baudrate */ @@ -97,16 +79,25 @@ static int console_std_set(struct device_d *dev, struct param_d *param, return ret; } - active[i] = 0; cdev->f_active = flag; - dev_param_set_generic(dev, param, active); + if (IS_ENABLED(CONFIG_PARAMETER)) { + i = 0; + + if (flag & CONSOLE_STDIN) + cdev->active[i++] = 'i'; + if (flag & CONSOLE_STDOUT) + cdev->active[i++] = 'o'; + if (flag & CONSOLE_STDERR) + cdev->active[i++] = 'e'; + cdev->active[i] = 0; + } if (initialized < CONSOLE_INIT_FULL) { char ch; initialized = CONSOLE_INIT_FULL; puts_ll("Switch to console ["); - puts_ll(dev_name(dev)); + puts_ll(dev_name(&cdev->class_dev)); puts_ll("]\n"); barebox_banner(); while (kfifo_getc(console_output_fifo, &ch) == 0) @@ -116,6 +107,37 @@ static int console_std_set(struct device_d *dev, struct param_d *param, return 0; } +unsigned console_get_active(struct console_device *cdev) +{ + return cdev->f_active; +} + +static int console_active_set(struct device_d *dev, struct param_d *param, + const char *val) +{ + struct console_device *cdev = to_console_dev(dev); + unsigned int flag = 0; + + if (val) { + if (strchr(val, 'i')) + flag |= CONSOLE_STDIN; + if (strchr(val, 'o')) + flag |= CONSOLE_STDOUT; + if (strchr(val, 'e')) + flag |= CONSOLE_STDERR; + } + + return console_set_active(cdev, flag); +} + +static const char *console_active_get(struct device_d *dev, + struct param_d *param) +{ + struct console_device *cdev = to_console_dev(dev); + + return cdev->active; +} + static int console_baudrate_set(struct param_d *param, void *priv) { struct console_device *cdev = priv; @@ -214,7 +236,7 @@ int console_register(struct console_device *newcdev) if (newcdev->putc && !newcdev->puts) newcdev->puts = __console_puts; - dev_add_param(dev, "active", console_std_set, NULL, 0); + dev_add_param(dev, "active", console_active_set, console_active_get, 0); if (IS_ENABLED(CONFIG_CONSOLE_ACTIVATE_FIRST)) { if (list_empty(&console_list)) @@ -230,12 +252,9 @@ int console_register(struct console_device *newcdev) list_add_tail(&newcdev->list, &console_list); - if (activate) { - if (IS_ENABLED(CONFIG_PARAMETER)) - dev_set_param(dev, "active", "ioe"); - else - console_std_set(dev, NULL, "ioe"); - } + if (activate) + console_set_active(newcdev, CONSOLE_STDIN | + CONSOLE_STDOUT | CONSOLE_STDERR); return 0; } diff --git a/include/console.h b/include/console.h index 72b4a44..f7055e6 100644 --- a/include/console.h +++ b/include/console.h @@ -52,6 +52,7 @@ struct console_device { struct list_head list; unsigned char f_active; + char active[4]; unsigned int baudrate; @@ -75,4 +76,7 @@ extern int barebox_loglevel; struct console_device *console_get_first_active(void); +int console_set_active(struct console_device *cdev, unsigned active); +unsigned console_get_active(struct console_device *cdev); + #endif -- 2.1.4 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox