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sandbox: Allow reading/writing of RAM buffer
[karo-tx-uboot.git] / arch / sandbox / include / asm / state.h
1 /*
2  * Copyright (c) 2011-2012 The Chromium OS Authors.
3  * SPDX-License-Identifier:     GPL-2.0+
4  */
5
6 #ifndef __SANDBOX_STATE_H
7 #define __SANDBOX_STATE_H
8
9 #include <config.h>
10 #include <stdbool.h>
11
12 /* How we exited U-Boot */
13 enum exit_type_id {
14         STATE_EXIT_NORMAL,
15         STATE_EXIT_COLD_REBOOT,
16         STATE_EXIT_POWER_OFF,
17 };
18
19 struct sandbox_spi_info {
20         const char *spec;
21         const struct sandbox_spi_emu_ops *ops;
22 };
23
24 /* The complete state of the test system */
25 struct sandbox_state {
26         const char *cmd;                /* Command to execute */
27         bool interactive;               /* Enable cmdline after execute */
28         const char *fdt_fname;          /* Filename of FDT binary */
29         enum exit_type_id exit_type;    /* How we exited U-Boot */
30         const char *parse_err;          /* Error to report from parsing */
31         int argc;                       /* Program arguments */
32         char **argv;
33         uint8_t *ram_buf;               /* Emulated RAM buffer */
34         unsigned int ram_size;          /* Size of RAM buffer */
35         const char *ram_buf_fname;      /* Filename to use for RAM buffer */
36         bool write_ram_buf;             /* Write RAM buffer on exit */
37
38         /* Pointer to information for each SPI bus/cs */
39         struct sandbox_spi_info spi[CONFIG_SANDBOX_SPI_MAX_BUS]
40                                         [CONFIG_SANDBOX_SPI_MAX_CS];
41 };
42
43 /**
44  * Record the exit type to be reported by the test program.
45  *
46  * @param exit_type     Exit type to record
47  */
48 void state_record_exit(enum exit_type_id exit_type);
49
50 /**
51  * Gets a pointer to the current state.
52  *
53  * @return pointer to state
54  */
55 struct sandbox_state *state_get_current(void);
56
57 /**
58  * Initialize the test system state
59  */
60 int state_init(void);
61
62 /**
63  * Uninitialize the test system state, writing out state if configured to
64  * do so.
65  *
66  * @return 0 if OK, -ve on error
67  */
68 int state_uninit(void);
69
70 #endif