keyboard driver and threads

* PS/2 keyboard driver
* interactive shell
* move away from \0 terminated strings to sized slices
* coroutine threads and IRQ queues

3 files changed, 98 insertions, 0 deletions

diff --git a/util/dump2cuddlekeys/.gitignore b/util/dump2cuddlekeys/.gitignore
new file mode 100644
index 0000000..ba69a71
--- /dev/null
+++ b/util/dump2cuddlekeys/.gitignore
@@ -0,0 +1 @@
+dump2cuddlekeys
diff --git a/util/dump2cuddlekeys/Makefile b/util/dump2cuddlekeys/Makefile
new file mode 100644
index 0000000..07b7bb2
--- /dev/null
+++ b/util/dump2cuddlekeys/Makefile
@@ -0,0 +1,8 @@
+dump2cuddlekeys: main.c
+	gcc -Wall -Wextra main.c -o dump2cuddlekeys
+
+dumpkeys:
+	dumpkeys -C/dev/tty1 | grep '^keycode' | less
+
+preview: map2cuddlekeys
+	dumpkeys -C/dev/tty1 | ./dump2cuddlekeys | hexdump -C
diff --git a/util/dump2cuddlekeys/main.c b/util/dump2cuddlekeys/main.c
new file mode 100644
index 0000000..ec0039e
--- /dev/null
+++ b/util/dump2cuddlekeys/main.c
@@ -0,0 +1,89 @@
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+int main()
+{
+	char keymap[256] = { '\0' };
+
+	char *line = NULL;
+	size_t cap = 0;
+	ssize_t len;
+	while ((len = getline(&line, &cap, stdin)) != -1) {
+		int code;
+		char key[len+1];
+
+		if (sscanf(line, "keycode %d = %s", &code, key) != 2)
+			continue;
+
+		char c = '\0';
+
+		struct {
+			char c;
+			const char *name;
+		} defs[] = {
+			{ '\n', "Return"      },
+			{ ' ',  "space"       },
+			{ '\b', "Delete"      },
+			{ '!',  "exclam"      },
+			{ '&',  "ampersand"   },
+			{ '%',  "percent"     },
+			{ '$',  "dollar"      },
+			{ '\'', "apostrophe"  },
+			{ '(',  "parenleft"   },
+			{ ')',  "parenright"  },
+			{ '*',  "asterisk"    },
+			{ '+',  "plus"        },
+			{ ',',  "comma"       },
+			{ '-',  "minus"       },
+			{ '.',  "period"      },
+			{ '/',  "slash"       },
+			{ '0',  "zero"        },
+			{ '1',  "one"         },
+			{ '2',  "two"         },
+			{ '3',  "three"       },
+			{ '4',  "four"        },
+			{ '5',  "five"        },
+			{ '6',  "six"         },
+			{ '7',  "seven"       },
+			{ '8',  "eight"       },
+			{ '9',  "nine"        },
+			{ ':',  "colon"       },
+			{ ';',  "semicolon"   },
+			{ '<',  "less"        },
+			{ '=',  "equal"       },
+			{ '>',  "greater"     },
+			{ '?',  "question"    },
+			{ '\n', "linefeed"    },
+			{ '\\', "backslash"   },
+			{ '\t', "Tab"         },
+			{ '@', "at"           },
+			{ '[', "bracketleft"  },
+			{ ']', "bracketright" },
+			{ '(', "{"            },
+			{ ')', "}"            },
+			{ '#', "numbersign"   },
+			{ '^', "asciicircum"  },
+		};
+
+		if (strlen(key) == 1)
+			c = key[0];
+		else if (strlen(key) == 2 && key[0] == '+')
+			c = key[1];
+		else for (size_t i = 0; i < sizeof defs / sizeof *defs; i++)
+			if (strcmp(defs[i].name, key) == 0) {
+				c = defs[i].c;
+				break;
+			}
+
+		if (c != '\0')
+			keymap[(unsigned char) code] = (char) c;
+		else if (strcmp(key, "nul") != 0)
+			{} // fprintf(stderr, "unhandled: %s\n", key);
+	}
+
+	if (line != NULL)
+		free(line);
+
+	fwrite(keymap, 1, 256, stdout);
+}