The state exists through the life of U-Boot. It can be adjusted by command line options and perhaps later through a config file. It is available to U-Boot through state_...() calls (within sandbox code).
Signed-off-by: Simon Glass sjg@chromium.org --- Changes in v4: - Add multiple #include protection to state.h - Make the state variable static - Remove unused state_is_processor_reset() function
arch/sandbox/cpu/Makefile | 2 +- arch/sandbox/cpu/start.c | 10 ++++ arch/sandbox/cpu/state.c | 52 ++++++++++++++++++++++ arch/sandbox/include/asm/arch-sandbox/state.h | 57 +++++++++++++++++++++++++ 4 files changed, 120 insertions(+), 1 deletions(-) create mode 100644 arch/sandbox/cpu/state.c create mode 100644 arch/sandbox/include/asm/arch-sandbox/state.h
diff --git a/arch/sandbox/cpu/Makefile b/arch/sandbox/cpu/Makefile index 2ae0f71..6fd09ff 100644 --- a/arch/sandbox/cpu/Makefile +++ b/arch/sandbox/cpu/Makefile @@ -27,7 +27,7 @@ include $(TOPDIR)/config.mk
LIB = $(obj)lib$(CPU).o
-COBJS := cpu.o start.o os.o +COBJS := cpu.o os.o start.o state.o
SRCS := $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(COBJS)) diff --git a/arch/sandbox/cpu/start.c b/arch/sandbox/cpu/start.c index a429e29..b3442e8 100644 --- a/arch/sandbox/cpu/start.c +++ b/arch/sandbox/cpu/start.c @@ -20,9 +20,19 @@ */
#include <common.h> +#include <asm/arch/state.h>
int main(int argc, char *argv[]) { + struct sandbox_state *state = NULL; + int err; + + err = state_init(); + if (!err) { + state = state_get_current(); + assert(state); + } + /* * Do pre- and post-relocation init, then start up U-Boot. This will * never return. diff --git a/arch/sandbox/cpu/state.c b/arch/sandbox/cpu/state.c new file mode 100644 index 0000000..20cd689 --- /dev/null +++ b/arch/sandbox/cpu/state.c @@ -0,0 +1,52 @@ +/* + * Copyright (c) 2011 The Chromium OS Authors. + * 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 <asm/arch/gpio.h> +#include <asm/arch/state.h> + +/* Main state record for the sandbox */ +static struct sandbox_state main_state; +static struct sandbox_state *state; /* Pointer to current state record */ + +void state_record_exit(enum exit_type_id exit_type) +{ + state->exit_type = exit_type; +} + +struct sandbox_state *state_get_current(void) +{ + assert(state); + return state; +} + +int state_init(void) +{ + state = &main_state; + + /* + * Example of how to use GPIOs: + * + * sandbox_gpio_set_direction(170, 0); + * sandbox_gpio_set_value(170, 0); + */ + return 0; +} diff --git a/arch/sandbox/include/asm/arch-sandbox/state.h b/arch/sandbox/include/asm/arch-sandbox/state.h new file mode 100644 index 0000000..ba000cd --- /dev/null +++ b/arch/sandbox/include/asm/arch-sandbox/state.h @@ -0,0 +1,57 @@ +/* + * Copyright (c) 2011 The Chromium OS Authors. + * 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 + */ + +#ifndef __SANDBOX_STATE_H +#define __SANDBOX_STATE_H + +/* How we exited U-Boot */ +enum exit_type_id { + STATE_EXIT_NORMAL, + STATE_EXIT_COLD_REBOOT, + STATE_EXIT_POWER_OFF, +}; + +/* The complete state of the test system */ +struct sandbox_state { + const char *cmd; /* Command to execute */ + enum exit_type_id exit_type; /* How we exited U-Boot */ +}; + +/** + * Record the exit type to be reported by the test program. + * + * @param exit_type Exit type to record + */ +void state_record_exit(enum exit_type_id exit_type); + +/** + * Gets a pointer to the current state. + * + * @return pointer to state + */ +struct sandbox_state *state_get_current(void); + +/** + * Initialize the test system state + */ +int state_init(void); + +#endif