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https://github.com/vivier/EMILE.git
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Add command line interface
This commit is contained in:
Laurent Vivier
parent
bcd309d505
commit
5de80e9c48
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@ -33,13 +33,13 @@ LIBS = $(OPT_LIBS) \
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LS = ls
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AWK = awk
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HEADERS = arch.h bank.h bootenv.h bootinfo.h bootx.h console.h driver.h enter_kernel030.h enter_kernel040.h enter_kernel.h enter_kernelnoMMU.h switch_to_PPC.h head.h keyboard.h load.h misc.h MMU030.h MMU040.h serial.h vga.h config.h copymem.i
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HEADERS = arch.h bank.h bootenv.h bootinfo.h bootx.h console.h driver.h enter_kernel030.h enter_kernel040.h enter_kernel.h enter_kernelnoMMU.h switch_to_PPC.h head.h keyboard.h load.h misc.h MMU030.h MMU040.h serial.h vga.h config.h copymem.i cli.h
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SOURCES = head.S main.c console.c \
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font_8x16.c \
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misc.c bank.c arch.c \
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load.c serial.c vga.c driver.c \
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enter_kernel.c config.c
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enter_kernel.c config.c cli.c
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SOURCES_CLI = keyboard.c
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232
second/cli.c
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232
second/cli.c
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@ -0,0 +1,232 @@
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/*
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*
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* (c) 2008 Laurent Vivier <Laurent@lvivier.info>
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*
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <libui.h>
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#include "vga.h"
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#include "console.h"
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#include "arch.h"
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#include "cli.h"
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#define COMMAND_LINE_LENGTH 256
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typedef int (*command_handler)(int argc, char **argv);
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struct command_interface {
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char *name;
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command_handler handler;
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char *help;
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};
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static struct command_interface command[];
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static int get_command(char *name);
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static int do_loop;
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static int exit_handler(int argc, char **argv)
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{
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do_loop = 0;
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return 0;
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}
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static int help_handler(int argc, char **argv)
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{
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int index;
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if (argc != 2)
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{
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printf("help needs one parameter\n");
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printf("Available commands are:\n");
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for (index = 0; command[index].name; index++)
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{
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printf("%s", command[index].name);
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if (command[index].help)
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printf(" %s", command[index].help);
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printf("\n");
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}
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return 1;
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}
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index = get_command(argv[1]);
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if (index == -1)
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{
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printf("Unknown command: %s\n", argv[1]);
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return 1;
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}
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if (command[index].help == NULL)
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{
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printf("No help available for %s\n", argv[1]);
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return 2;
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}
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printf("%s\n", command[index].help);
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return 0;
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}
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static int vga_handler(int argc, char **argv)
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{
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if (argc != 2)
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{
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printf("vga needs one parameter to set the display mode\n");
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return 1;
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}
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vga_init(argv[1]);
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return 0;
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}
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static int modem_handler(int argc, char **argv)
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{
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return 0;
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}
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static int printer_handler(int argc, char **argv)
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{
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return 0;
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}
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static int gestaltid_handler(int argc, char **argv)
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{
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if (argc != 2)
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{
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printf("gestaltID needs a parameter\n");
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return 1;
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}
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machine_id = strtol(argv[1], NULL, 0);
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printf("New gestalt ID is %ld\n", machine_id);
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return 0;
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}
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#define COMMAND_NB 7
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static struct command_interface command[COMMAND_NB];
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#define NEW_COMMAND(a,b,c) \
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do { \
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if (i < COMMAND_NB) { \
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command[i].name = a; \
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command[i].handler = b; \
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command[i].help = c; \
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i++; \
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} \
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} while(0)
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static void cli_init(void)
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{
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int i = 0;
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/* because of GOT */
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NEW_COMMAND("exit", exit_handler, "exit from interpreter");
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NEW_COMMAND("help", help_handler, "give help of commands");
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NEW_COMMAND("vga", vga_handler, "set display mode");
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NEW_COMMAND("modem", modem_handler,
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"set modem serial port configuation");
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NEW_COMMAND("printer", printer_handler,
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"set printer serial port configuration");
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NEW_COMMAND("gestaltID", gestaltid_handler, "set machine gestalt ID");
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NEW_COMMAND(NULL, NULL, NULL);
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}
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static int get_command(char *name)
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{
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int i;
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for (i = 0; command[i].name; i++)
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{
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if (strcmp(name, command[i].name) == 0)
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return i;
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}
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return -1;
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}
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static int skip_blank(char *line, int i)
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{
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while (line[i] == ' ' || line[i] == '\t')
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i++;
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return i;
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}
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static int skip_word(char *line, int i)
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{
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while (line[i] != ' ' && line[i] != '\t' && line[i])
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i++;
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return i;
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}
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static int split_line(char *line, char ***argv)
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{
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int i, j;
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int argc;
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char **words;
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/* how many words ? */
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argc = 0;
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for (i = skip_blank(line, 0); line[i]; i = skip_blank(line, i))
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{
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i = skip_word(line, i);
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argc++;
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}
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words = (char**)malloc(argc * sizeof(char*));
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/* where are the words ? */
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i = skip_blank(line, 0);
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j = 0;
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while(1)
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{
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words[j++] = line + i;
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i = skip_word(line, i);
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if (line[i] == 0)
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break;
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line[i++] = 0;
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i = skip_blank(line, i);
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}
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*argv = words;
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return argc;
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}
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void cli(void)
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{
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char line[COMMAND_LINE_LENGTH];
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int argc;
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char **argv;
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int index;
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do_loop = 1;
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cli_init();
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console_clear();
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while(do_loop)
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{
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printf("emile> ");
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memset(line, 0, COMMAND_LINE_LENGTH);
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emile_edit(line, COMMAND_LINE_LENGTH);
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printf("\n");
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argc = split_line(line, &argv);
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if (argc > 0)
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{
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index = get_command(argv[0]);
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if (index == -1)
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printf("Unknown command: %s\n", argv[0]);
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else
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{
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command[index].handler(argc, argv);
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free(argv);
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}
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}
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}
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console_clear();
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}
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7
second/cli.h
Normal file
7
second/cli.h
Normal file
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@ -0,0 +1,7 @@
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/*
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*
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* (c) 2008 Laurent Vivier <Laurent@lvivier.info>
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*
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*/
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extern void cli(void);
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@ -16,6 +16,7 @@
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#include "config.h"
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#if defined(USE_CLI) && defined(__LINUX__)
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#include "console.h"
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#include "cli.h"
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#endif
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#include "arch.h"
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#include "misc.h"
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@ -28,12 +29,13 @@ extern int boot_unit;
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#endif
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#define MSG_STATE_0 console_set_cursor_position(win.l + win.h + 1, 1); \
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printf(" Press 'b' or [RETURN] to boot or 'e' to edit\n");
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printf(" Press 'b' or [RETURN] to boot or 'e' to edit\n"); \
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printf(" Press 'c' to enter command line interpreter \n");
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#define MSG_STATE_1 console_set_cursor_position(win.l + win.h + 1, 1); \
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printf(" Press 'b' to boot, 'e' or [RETURN] to edit \n" \
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" Press 'd' to delete, 'n' to create \n" \
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" Press [ESC] to go back \n");
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" Press 'c' to enter CLI or [ESC] to go back \n");
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#define MSG_CLEAN console_set_cursor_position(win.l + win.h + 1, 1); \
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printf(" \n" \
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@ -341,6 +343,12 @@ int read_config(emile_l2_header_t* info, emile_config_t *econfig)
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state = 1;
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MSG_STATE_1
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break;
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case 'c':
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cli();
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console_set_cursor_position(1, len);
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printf("%s\n", line);
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MSG_STATE_0
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break;
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}
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break;
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case 1: /* select parameter */
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@ -383,6 +391,12 @@ int read_config(emile_l2_header_t* info, emile_config_t *econfig)
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MSG_CLEAN
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state = 2;
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break;
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case 'c':
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cli();
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console_set_cursor_position(1, len);
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printf("%s\n", line);
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MSG_STATE_1
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break;
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}
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break;
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case 2: /* edit parameter */
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