--- /dev/null
+#ident "$Id$"
+/* ----------------------------------------------------------------------- *
+ *
+ * Copyright 2004 H. Peter Anvin - All Rights Reserved
+ *
+ * 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 THE AUTHORS OR COPYRIGHT
+ * HOLDERS 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.
+ *
+ * ----------------------------------------------------------------------- */
+
+/*
+ * ansicon_write.c
+ *
+ * Write to the screen using ANSI control codes (about as capable as
+ * DOS' ANSI.SYS.)
+ */
+
+#include <errno.h>
+#include <string.h>
+#include <com32.h>
+#include <minmax.h>
+#include <klibc/compiler.h>
+#include "file.h"
+
+static void __constructor ansicon_init(void)
+{
+ static com32sys_t ireg; /* Auto-initalized to all zero */
+
+ ireg.eax.w[0] = 0x0005; /* Force text mode */
+ __intcall(0x22, &ireg, NULL);
+}
+
+struct curxy {
+ uint8_t x, y;
+} __attribute__((packed));
+#define BIOS_CURXY ((struct curxy *)0x450) /* Array for each page */
+#define BIOS_ROWS (*(uint8_t *)0x449) /* Minus one */
+#define BIOS_COLS (*(uint16_t *)0x44A)
+#define BIOS_PAGE (*(uint8_t *)0x462)
+#define BIOS_FB (*(uint16_t *)0x44E) /* Current page fb address */
+
+static struct {
+ uint8_t attr; /* Current display attribute */
+} st = {
+ 0x0007, /* Grey on black */
+};
+
+static void ansicon_putchar(int ch)
+{
+ static com32sys_t ireg;
+ int rows = BIOS_ROWS ? BIOS_ROWS+1 : 25;
+ int cols = BIOS_COLS;
+ struct curxy xy = BIOS_CURXY[BIOS_PAGE];
+
+ ireg.eax.b[1] = 0x09;
+ ireg.eax.b[0] = ch;
+ ireg.ebx.b[1] = BIOS_PAGE;
+ ireg.ebx.b[0] = st.attr;
+ ireg.ecx.w[0] = 1;
+ __intcall(0x10, &ireg, NULL);
+
+ xy.x++;
+ if ( xy.x >= cols ) {
+ xy.x = 0;
+ xy.y++;
+ if ( xy.y >= rows ) {
+ xy.y = 0;
+ ireg.eax.w[0] = 0x0601;
+ ireg.ebx.b[1] = st.attr;
+ ireg.ecx.w[0] = 0;
+ ireg.edx.b[1] = rows-1;
+ ireg.edx.b[0] = cols-1;
+ __intcall(0x10, &ireg, NULL); /* Scroll */
+ }
+ }
+
+ ireg.eax.b[1] = 0x04;
+ ireg.ebx.b[1] = BIOS_PAGE;
+ ireg.edx.b[1] = curxy.y;
+ ireg.edx.b[0] = curxy.x;
+ __intcall(0x10, &ireg, NULL); /* Update cursor position */
+}
+
+static ssize_t ansicon_write(struct file_info *fp, const void *buf, size_t count)
+{
+ com32sys_t ireg;
+ const char *bufp = buf;
+ size_t n = 0;
+
+ (void)fp;
+
+ memset(&ireg, 0, sizeof ireg);
+ ireg.eax.b[1] = 0x04;
+
+ while ( count-- ) {
+ ansicon_putchar(*bufp++);
+ n++;
+ }
+
+ return n;
+}
+
+const struct output_dev dev_ansicon_w = {
+ .dev_magic = __DEV_MAGIC,
+ .flags = __DEV_TTY | __DEV_OUTPUT,
+ .fileflags = O_WRONLY | O_CREAT | O_TRUNC | O_APPEND,
+ .write = __ansicon_write,
+ .close = NULL,
+};
--- /dev/null
+#ident "$Id$"
+/* ----------------------------------------------------------------------- *
+ *
+ * Copyright 2004 H. Peter Anvin - All Rights Reserved
+ *
+ * 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 THE AUTHORS OR COPYRIGHT
+ * HOLDERS 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.
+ *
+ * ----------------------------------------------------------------------- */
+
+/*
+ * serial_write.c
+ *
+ * Raw writing to the serial port; no \n -> \r\n translation
+ */
+
+#include <errno.h>
+#include <string.h>
+#include <com32.h>
+#include <minmax.h>
+#include "file.h"
+
+static ssize_t __serial_write(struct file_info *fp, const void *buf, size_t count)
+{
+ com32sys_t ireg;
+ const char *bufp = buf;
+ size_t n = 0;
+
+ (void)fp;
+
+ memset(&ireg, 0, sizeof ireg);
+ ireg.eax.b[1] = 0x04;
+
+ while ( count-- ) {
+ ireg.edx.b[0] = *bufp++;
+ __intcall(0x21, &ireg, NULL);
+ n++;
+ }
+
+ return n;
+}
+
+const struct output_dev dev_serial_w = {
+ .dev_magic = __DEV_MAGIC,
+ .flags = __DEV_TTY | __DEV_OUTPUT,
+ .fileflags = O_WRONLY | O_CREAT | O_TRUNC | O_APPEND,
+ .write = __serial_write,
+ .close = NULL,
+};