5c2859cdc3
It is useful to be able to save and restore the RAM contents of sandbox U-Boot either for setting up tests, for later analysys, or for chaining together multiple tests which need to keep the same memory contents. Add a function to provide a memory file for U-Boot. This is read on start-up and written when shutting down. If the file does not exist on start-up, it will be created when shutting down. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
57 lines
1,006 B
C
57 lines
1,006 B
C
/*
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* Copyright (c) 2011-2012 The Chromium OS Authors.
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <os.h>
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#include <asm/state.h>
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/* Main state record for the sandbox */
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static struct sandbox_state main_state;
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static struct sandbox_state *state; /* Pointer to current state record */
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void state_record_exit(enum exit_type_id exit_type)
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{
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state->exit_type = exit_type;
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}
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struct sandbox_state *state_get_current(void)
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{
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assert(state);
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return state;
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}
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int state_init(void)
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{
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state = &main_state;
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state->ram_size = CONFIG_SYS_SDRAM_SIZE;
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state->ram_buf = os_malloc(state->ram_size);
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assert(state->ram_buf);
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/*
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* Example of how to use GPIOs:
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*
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* sandbox_gpio_set_direction(170, 0);
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* sandbox_gpio_set_value(170, 0);
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*/
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return 0;
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}
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int state_uninit(void)
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{
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int err;
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state = &main_state;
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if (state->write_ram_buf) {
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err = os_write_ram_buf(state->ram_buf_fname);
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if (err) {
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printf("Failed to write RAM buffer\n");
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return err;
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}
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}
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return 0;
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}
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