X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=arch%2Fsandbox%2Finclude%2Fasm%2Fstate.h;h=8fabe70a86d8ee84d4965d1c0fbf3b4624e386c4;hb=9450ab2ba8d720bd9f73bccc0af2e2b5a2c2aaf1;hp=9552708a7233468889b7e9e1e15ce7eca3f24dba;hpb=f828bf25fe02f0d7148a9180988ab4d5681b8195;p=platform%2Fkernel%2Fu-boot.git diff --git a/arch/sandbox/include/asm/state.h b/arch/sandbox/include/asm/state.h index 9552708..8fabe70 100644 --- a/arch/sandbox/include/asm/state.h +++ b/arch/sandbox/include/asm/state.h @@ -1,52 +1,171 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ /* * Copyright (c) 2011-2012 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 #include +#include +#include +#include +#include + +/** + * Selects the behavior of the serial terminal. + * + * If Ctrl-C is processed by U-Boot, then the only way to quit sandbox is with + * the 'reset' command, or equivalent. + * + * If the terminal is cooked, then Ctrl-C will terminate U-Boot, and the + * command line will not be quite such a faithful emulation. + * + * Options are: + * + * raw-with-sigs - Raw, but allow signals (Ctrl-C will quit) + * raw - Terminal is always raw + * cooked - Terminal is always cooked + */ +enum state_terminal_raw { + STATE_TERM_RAW_WITH_SIGS, /* Default */ + STATE_TERM_RAW, + STATE_TERM_COOKED, + + STATE_TERM_COUNT, +}; + +struct sandbox_spi_info { + struct udevice *emul; +}; -/* How we exited U-Boot */ -enum exit_type_id { - STATE_EXIT_NORMAL, - STATE_EXIT_COLD_REBOOT, - STATE_EXIT_POWER_OFF, +struct sandbox_wdt_info { + unsigned long long counter; + uint reset_count; + bool running; +}; + +/** + * struct sandbox_mapmem_entry - maps pointers to/from U-Boot addresses + * + * When map_to_sysmem() is called with an address outside sandbox's emulated + * RAM, a record is created with a tag that can be used to reference that + * pointer. When map_sysmem() is called later with that tag, the pointer will + * be returned, just as it would for a normal sandbox address. + * + * @tag: Address tag (a value which U-Boot uses to refer to the address) + * @ptr: Associated pointer for that tag + */ +struct sandbox_mapmem_entry { + ulong tag; + void *ptr; + struct list_head sibling_node; }; /* The complete state of the test system */ struct sandbox_state { const char *cmd; /* Command to execute */ + bool interactive; /* Enable cmdline after execute */ + bool run_distro_boot; /* Automatically run distro bootcommands */ const char *fdt_fname; /* Filename of FDT binary */ - enum exit_type_id exit_type; /* How we exited U-Boot */ const char *parse_err; /* Error to report from parsing */ int argc; /* Program arguments */ - char **argv; + char **argv; /* Command line arguments */ + const char *jumped_fname; /* Jumped from previous U_Boot */ + uint8_t *ram_buf; /* Emulated RAM buffer */ + unsigned int ram_size; /* Size of RAM buffer */ + const char *ram_buf_fname; /* Filename to use for RAM buffer */ + bool ram_buf_rm; /* Remove RAM buffer file after read */ + bool write_ram_buf; /* Write RAM buffer on exit */ + const char *state_fname; /* File containing sandbox state */ + void *state_fdt; /* Holds saved state for sandbox */ + bool read_state; /* Read sandbox state on startup */ + bool write_state; /* Write sandbox state on exit */ + bool ignore_missing_state_on_read; /* No error if state missing */ + bool show_lcd; /* Show LCD on start-up */ + enum sysreset_t last_sysreset; /* Last system reset type */ + bool sysreset_allowed[SYSRESET_COUNT]; /* Allowed system reset types */ + enum state_terminal_raw term_raw; /* Terminal raw/cooked */ + bool skip_delays; /* Ignore any time delays (for test) */ + bool show_test_output; /* Don't suppress stdout in tests */ + int default_log_level; /* Default log level for sandbox */ + bool show_of_platdata; /* Show of-platdata in SPL */ + + /* Pointer to information for each SPI bus/cs */ + struct sandbox_spi_info spi[CONFIG_SANDBOX_SPI_MAX_BUS] + [CONFIG_SANDBOX_SPI_MAX_CS]; + + /* Information about Watchdog */ + struct sandbox_wdt_info wdt; + + ulong next_tag; /* Next address tag to allocate */ + struct list_head mapmem_head; /* struct sandbox_mapmem_entry */ +}; + +/* Minimum space we guarantee in the state FDT when calling read/write*/ +#define SANDBOX_STATE_MIN_SPACE 0x1000 + +/** + * struct sandbox_state_io - methods to saved/restore sandbox state + * @name: Name of of the device tree node, also the name of the variable + * holding this data so it should be an identifier (use underscore + * instead of minus) + * @compat: Compatible string for the node containing this state + * + * @read: Function to read state from FDT + * If data is available, then blob and node will provide access to it. If + * not (blob == NULL and node == -1) this function should set up an empty + * data set for start-of-day. + * @param blob: Pointer to device tree blob, or NULL if no data to read + * @param node: Node offset to read from + * @return 0 if OK, -ve on error + * + * @write: Function to write state to FDT + * The caller will ensure that there is a node ready for the state. The + * node may already contain the old state, in which case it should be + * overridden. There is guaranteed to be SANDBOX_STATE_MIN_SPACE bytes + * of free space, so error checking is not required for fdt_setprop...() + * calls which add up to less than this much space. + * + * For adding larger properties, use state_setprop(). + * + * @param blob: Device tree blob holding state + * @param node: Node to write our state into + * + * Note that it is possible to save data as large blobs or as individual + * hierarchical properties. However, unless you intend to keep state files + * around for a long time and be able to run an old state file on a new + * sandbox, it might not be worth using individual properties for everything. + * This is certainly supported, it is just a matter of the effort you wish + * to put into the state read/write feature. + */ +struct sandbox_state_io { + const char *name; + const char *compat; + int (*write)(void *blob, int node); + int (*read)(const void *blob, int node); }; /** - * Record the exit type to be reported by the test program. + * SANDBOX_STATE_IO - Declare sandbox state to read/write + * + * Sandbox permits saving state from one run and restoring it in another. This + * allows the test system to retain state between runs and thus better + * emulate a real system. Examples of state that might be useful to save are + * the emulated GPIOs pin settings, flash memory contents and TPM private + * data. U-Boot memory contents is dealth with separately since it is large + * and it is not normally useful to save it (since a normal system does not + * preserve DRAM between runs). See the '-m' option for this. * - * @param exit_type Exit type to record + * See struct sandbox_state_io above for member documentation. */ -void state_record_exit(enum exit_type_id exit_type); +#define SANDBOX_STATE_IO(_name, _compat, _read, _write) \ + ll_entry_declare(struct sandbox_state_io, _name, state_io) = { \ + .name = __stringify(_name), \ + .read = _read, \ + .write = _write, \ + .compat = _compat, \ + } /** * Gets a pointer to the current state. @@ -56,8 +175,91 @@ void state_record_exit(enum exit_type_id exit_type); struct sandbox_state *state_get_current(void); /** + * Read the sandbox state from the supplied device tree file + * + * This calls all registered state handlers to read in the sandbox state + * from a previous test run. + * + * @param state Sandbox state to update + * @param fname Filename of device tree file to read from + * @return 0 if OK, -ve on error + */ +int sandbox_read_state(struct sandbox_state *state, const char *fname); + +/** + * Write the sandbox state to the supplied device tree file + * + * This calls all registered state handlers to write out the sandbox state + * so that it can be preserved for a future test run. + * + * If the file exists it is overwritten. + * + * @param state Sandbox state to update + * @param fname Filename of device tree file to write to + * @return 0 if OK, -ve on error + */ +int sandbox_write_state(struct sandbox_state *state, const char *fname); + +/** + * Add a property to a sandbox state node + * + * This is equivalent to fdt_setprop except that it automatically enlarges + * the device tree if necessary. That means it is safe to write any amount + * of data here. + * + * This function can only be called from within struct sandbox_state_io's + * ->write method, i.e. within state I/O drivers. + * + * @param node Device tree node to write to + * @param prop_name Property to write + * @param data Data to write into property + * @param size Size of data to write into property + */ +int state_setprop(int node, const char *prop_name, const void *data, int size); + +/** + * Control skipping of time delays + * + * Some tests have unnecessay time delays (e.g. USB). Allow these to be + * skipped to speed up testing + * + * @param skip_delays true to skip delays from now on, false to honour delay + * requests + */ +void state_set_skip_delays(bool skip_delays); + +/** + * See if delays should be skipped + * + * @return true if delays should be skipped, false if they should be honoured + */ +bool state_get_skip_delays(void); + +/** + * state_reset_for_test() - Reset ready to re-run tests + * + * This clears out any test state ready for another test run. + */ +void state_reset_for_test(struct sandbox_state *state); + +/** + * state_show() - Show information about the sandbox state + * + * @param state Sandbox state to show + */ +void state_show(struct sandbox_state *state); + +/** * Initialize the test system state */ int state_init(void); +/** + * Uninitialize the test system state, writing out state if configured to + * do so. + * + * @return 0 if OK, -ve on error + */ +int state_uninit(void); + #endif