diff options
Diffstat (limited to 'common')
| -rw-r--r-- | common/Kconfig | 3 | ||||
| -rw-r--r-- | common/Makefile | 1 | ||||
| -rw-r--r-- | common/console.c | 5 | ||||
| -rw-r--r-- | common/poller.c | 45 |
4 files changed, 54 insertions, 0 deletions
diff --git a/common/Kconfig b/common/Kconfig index 617f640a57..02bc67ed90 100644 --- a/common/Kconfig +++ b/common/Kconfig @@ -414,6 +414,9 @@ config DEFAULT_ENVIRONMENT_PATH Relative pathes will be relative to the barebox Toplevel dir, but absolute pathes are fine aswell. +config POLLER + bool "generic polling infrastructure" + endmenu menu "Debugging " diff --git a/common/Makefile b/common/Makefile index 753455b64f..98c9d36c12 100644 --- a/common/Makefile +++ b/common/Makefile @@ -5,6 +5,7 @@ obj-$(CONFIG_OF_FLAT_TREE) += ft_build.o obj-$(CONFIG_KALLSYMS) += kallsyms.o obj-$(CONFIG_ENV_HANDLING) += environment.o obj-$(CONFIG_AUTO_COMPLETE) += complete.o +obj-$(CONFIG_POLLER) += poller.o obj-y += dlmalloc.o obj-y += clock.o diff --git a/common/console.c b/common/console.c index 82786f2b03..39ead4b58b 100644 --- a/common/console.c +++ b/common/console.c @@ -34,6 +34,7 @@ #include <clock.h> #include <kfifo.h> #include <module.h> +#include <poller.h> #include <linux/list.h> LIST_HEAD(console_list); @@ -205,6 +206,8 @@ int getc(void) */ start = get_time_ns(); while (1) { + poller_call(); + if (tstc()) { kfifo_putc(console_input_buffer, getc_raw()); @@ -397,6 +400,8 @@ EXPORT_SYMBOL(vprintf); /* test if ctrl-c was pressed */ int ctrlc (void) { + poller_call(); + if (tstc() && getc() == 3) return 1; return 0; diff --git a/common/poller.c b/common/poller.c new file mode 100644 index 0000000000..0583a532cf --- /dev/null +++ b/common/poller.c @@ -0,0 +1,45 @@ +/* + * Copyright (C) 2010 Marc Kleine-Budde <mkl@pengutronix.de> + * + * This file is released under the GPLv2 + * + */ + +#include <common.h> +#include <driver.h> +#include <malloc.h> +#include <module.h> +#include <param.h> +#include <poller.h> + +static LIST_HEAD(poller_list); +static int poller_active; + +int poller_register(struct poller_struct *poller) +{ + list_add_tail(&poller->list, &poller_list); + + return 0; +} + +int poller_unregister(struct poller_struct *poller) +{ + list_del(&poller->list); + + return 0; +} + +void poller_call(void) +{ + struct poller_struct *poller, *tmp; + + if (poller_active) + return; + + poller_active = 1; + + list_for_each_entry_safe(poller, tmp, &poller_list, list) + poller->func(poller); + + poller_active = 0; +} |