/* sim_frontpanel.h: simulator frontpanel API definitions Copyright (c) 2015, Mark Pizzolato Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL MARK PIZZOLATO BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. Except as contained in this notice, the name of Mark Pizzolato shall not be used in advertising or otherwise to promote the sale, use or other dealings in this Software without prior written authorization from Mark Pizzolato. 15-Jan-15 MP Initial implementation This module defines interface between a front panel application and a simh simulator. Facilities provide ways to gather information from and to observe and control the state of a simulator. Any application which wants to use this API needs to: 1) include this file in the application code 2) compile sim_frontpanel.c and sim_sock.c from the top level directory of the simh source. 3) link the sim_frontpanel and sim_sock object modules and libpthreads into the application. 4) Use a simh simulator built from the same version of simh that the sim_frontpanel and sim_sock modules came from. */ #ifndef SIM_FRONTPANEL_H_ #define SIM_FRONTPANEL_H_ 0 #ifdef __cplusplus extern "C" { #endif #include /** sim_panel_start_simulator A starts a simulatir with a particular configuration sim_path the path to the simulator binary sim_config the configuration to run the simulator with device_panel_count the number of sub panels for connected devices Note 1: - The path specified must be either a fully specified path or it could be merey the simulator name if the simulator binary is located in the current PATH. - The simulator binary must be built from the same version simh source code that the frontpanel API was acquired fron (the API and the simh framework must speak the same language) Note 2: - Configuration file specified should contain device setup statements (enable, disable, CPU types and attach commands). It should not start a simulator running. */ typedef struct PANEL PANEL; PANEL * sim_panel_start_simulator (const char *sim_path, const char *sim_config, size_t device_panel_count); /** sim_panel_add_device_panel - creates a sub panel associated with a specific simulator panel simulator_panel the simulator panel to connect to device_name the simulator's name for the device */ PANEL * sim_panel_add_device_panel (PANEL *simulator_panel, const char *device_name); /** sim_panel_destroy to shutdown a panel or sub panel. Note: destroying a simulator panel will also destroy any related sub panels */ int sim_panel_destroy (PANEL *panel); /** The frontpanel API exposes the state of a simulator via access to simh register variables that the simulator and its devices define. These registers certainly include any architecturally described registers (PC, PSL, SP, etc.), but also include anything else the simulator uses as internal state to implement the running simulator. The registers that a particular frontpanel application mught need access to are described by the application by calling: sim_pabel_add_register name the name the simulator knows this register by size the size (in local storage) of the buffer which will receive the data in the simulator's register addr a pointer to the location of the buffer which will be loaded with the data in the simulator's register */ int sim_panel_add_register (PANEL *panel, const char *name, size_t size, void *addr); /** A panel application has a choice of two different methods of getting the values contained in the set of registers it has declared interest in via the sim_panel_add_register API. 1) The values can be polled (when ever it is desired) by calling sim_panel_get_registers(). 2) The panel can call sim_panel_set_display_callback() to specify a callback routine and a periodic rate that the callback routine should be called. The panel API will make a best effort to deliver the current register state at the desired rate. Note 1: The buffers described in a panel's register set will be dynamically revised as soon as data is available from the simulator. The callback routine merely serves as a notification that a complete register set has arrived. */ int sim_panel_get_registers (PANEL *panel); /** */ typedef void (*PANEL_DISPLAY_PCALLBACK)(PANEL *panel, void *context); int sim_panel_set_display_callback (PANEL *panel, PANEL_DISPLAY_PCALLBACK callback, void *context, int callbacks_per_second); /** When a front panel application needs to change the running state of a simulator one of the following routines should be called: sim_panel_exec_halt - Stop instruction execution sim_panel_exec_boot - Boot a simulator from a specific device sim_panel_exec_run - Start/Resume a simulator running instructions sim_panel_exec_step - Have a simulator execute a single step */ int sim_panel_exec_halt (PANEL *panel); int sim_panel_exec_boot (PANEL *panel, const char *device); int sim_panel_exec_run (PANEL *panel); int sim_panel_exec_step (PANEL *panel); /** sim_panel_set_register_value name the name of a simulator register which is to receive a new value value the new value in character string form. The string must be in the native/natural radix that the simulator uses when referencing that register */ int sim_panel_set_register_value (PANEL *panel, const char *name, const char *value); typedef enum { Halt, /* Simulation is halted (instructions not being executed) */ Run, /* Simulation is executing instructions */ Error /* Panel simulator is in an error state and should be */ /* closed (destroyed). sim_panel_get_error might help */ /* explain why */ } OperationalState; OperationalState sim_panel_get_state (PANEL *panel); /** All APIs routines which return an int return 0 for success and -1 for an error. sim_panel_get_error - the details of the most recent error sim_panel_clear_error - clears the error buffer */ const char *sim_panel_get_error (void); void sim_panel_clear_error (void); /** The panek<->simulator wire protocol can be traced if protocol problems arise. sim_panel_set_debug_file - Specifies the log file to record debug traffic sim_panel_set_debug_mode - Specifies the debug detail to be recorded sim_panel_flush_debug - Flushes debug output to disk */ void sim_panel_set_debug_file (PANEL *panel, const char *debug_file); #define DBG_XMT 1 /* Transmit Data */ #define DBG_RCV 2 /* Receive Data */ void sim_panel_set_debug_mode (PANEL *panel, int debug_bits); void sim_panel_flush_debug (PANEL *panel); #ifdef __cplusplus } #endif #endif /* SIM_FRONTPANEL_H_ */