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Diffstat (limited to 'sys/dev/vcons/vcons.c')
-rw-r--r--sys/dev/vcons/vcons.c227
1 files changed, 0 insertions, 227 deletions
diff --git a/sys/dev/vcons/vcons.c b/sys/dev/vcons/vcons.c
deleted file mode 100644
index fe1a3f0..0000000
--- a/sys/dev/vcons/vcons.c
+++ /dev/null
@@ -1,227 +0,0 @@
-/*
- * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of Hyra nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include <dev/vcons/vcons.h>
-#include <dev/vcons/vcons_io.h>
-#include <dev/video/fbdev.h>
-#include <sys/syslog.h>
-#include <sys/cdefs.h>
-#include <string.h>
-
-__MODULE_NAME("kern_vcons");
-__KERNEL_META("$Hyra$: kern_vcons.c, Ian Marco Moffett, "
- "Hyra video console code");
-
-/* Get x or y values in pixels */
-#define PIX_CPY_X(scrptr) ((scrptr)->cpy_x * FONT_WIDTH)
-#define PIX_CPY_Y(scrptr) ((scrptr)->cpy_y * FONT_HEIGHT)
-
-#define PIX_BOUNDS_MAX_X(scrptr) ((scrptr)->fbdev.width - FONT_WIDTH)
-#define PIX_BOUNDS_MAX_Y(scrptr) ((scrptr)->fbdev.height - FONT_HEIGHT)
-
-static struct vcons_screen *screen = NULL;
-
-/*
- * Draw the console cursor.
- *
- * @color: Cursor color
- */
-static void
-vcons_draw_cursor(struct vcons_screen *scr, uint32_t color)
-{
- struct vcons_cursor *cursor = &scr->cursor;
- struct fbdev fbdev = scr->fbdev;
-
- uint32_t *fbdev_mem = fbdev.mem;
- uint32_t fbdev_idx = 0;
- uint32_t cx, cy;
-
- for (size_t y = VCONS_CURSOR_HEIGHT; y > 0; --y) {
- for (size_t x = VCONS_CURSOR_WIDTH; x > 0; --x) {
- cx = cursor->old_xpos + x;
- cy = cursor->old_ypos + y;
-
- fbdev_idx = fbdev_get_index(&fbdev, cx, cy);
- fbdev_mem[fbdev_idx] = color;
- }
- }
-}
-
-/*
- * Clear everything out of the console.
- */
-static void
-vcons_clear_scr(struct vcons_screen *scr)
-{
- struct fbdev fbdev = scr->fbdev;
-
- scr->cpy_x = 0, scr->cpy_y = 0;
-
- memset(scr->fbdev_mem, scr->bg, (fbdev.pitch * fbdev.height));
- vcons_update_cursor(scr);
-}
-
-/*
- * Renders a char onto the screen specified by `scr`.
- *
- * @x,y: In chars
- */
-static void
-vcons_draw_char(struct vcons_screen *scr, char c, uint32_t x, uint32_t y)
-{
- uint32_t *fb_ptr;
- size_t idx;
- const uint8_t *glyph;
-
- /* Get a pointer to framebuffer memory */
- fb_ptr = scr->fbdev_mem;
-
- /* Get the specific glyph of `c` */
- glyph = &DEFAULT_FONT_DATA[(int)c*16];
-
- for (uint32_t cy = 0; cy < FONT_HEIGHT; ++cy) {
- for (uint32_t cx = 0; cx < FONT_WIDTH; ++cx) {
- idx = fbdev_get_index(&scr->fbdev, x+FONT_WIDTH-cx, y+cy);
- fb_ptr[idx] = __TEST(glyph[cy], __BIT(cx)) ? scr->fg : scr->bg;
- }
- }
-}
-
-/*
- * Update the cursor position.
- *
- * XXX: This function also accounts for the old cursor
- * and clears it before drawing the new cursor.
- */
-void
-vcons_update_cursor(struct vcons_screen *scr)
-{
- struct vcons_cursor *cursor = &scr->cursor;
-
- cursor->is_drawing = true;
-
- if (cursor->is_drawn) {
- /* Clear old cursor */
- vcons_draw_cursor(scr, scr->bg);
- }
-
- cursor->old_xpos = cursor->xpos;
- cursor->old_ypos = cursor->ypos;
- vcons_draw_cursor(scr, scr->fg);
-
- cursor->is_drawn = true;
- cursor->is_drawing = false;
-}
-
-/*
- * Write out a character on the console.
- *
- * @c: Character to write.
- */
-int
-vcons_putch(struct vcons_screen *scr, char c)
-{
- uint32_t x = PIX_CPY_X(scr);
- uint32_t y = PIX_CPY_Y(scr);
- struct vcons_cursor *cursor = &scr->cursor;
- bool cursor_newline = false;
-
- while (cursor->is_drawing);
-
- if (scr == NULL) {
- return 1;
- }
-
- /* Check cursor bounds */
- if (cursor->xpos >= PIX_BOUNDS_MAX_X(scr)) {
- cursor->xpos = FONT_WIDTH;
- cursor->ypos += FONT_HEIGHT;
- cursor_newline = true;
- }
- if (cursor->ypos >= PIX_BOUNDS_MAX_Y(scr)) {
- cursor->xpos = FONT_WIDTH;
- cursor->ypos = 0;
- }
-
- /* Check text bounds */
- if (x >= PIX_BOUNDS_MAX_X(scr)) {
- /* Wrap to the next row */
- ++scr->cpy_y, scr->cpy_x = 0;
- x = PIX_CPY_X(scr), y = PIX_CPY_Y(scr);
- }
- if (y >= PIX_BOUNDS_MAX_Y(scr)) {
- scr->cpy_y = 0;
- scr->cpy_x = 0;
- vcons_clear_scr(scr);
- x = PIX_CPY_X(scr), y = PIX_CPY_Y(scr);
- }
-
- if (!cursor_newline) {
- cursor->xpos += FONT_WIDTH;
- }
-
- vcons_update_cursor(scr);
- vcons_draw_char(scr, c, x, y);
- ++scr->cpy_x;
- return 0;
-}
-
-/*
- * Write out a string on the console.
- *
- * @s: String to write.
- */
-int
-vcons_putstr(struct vcons_screen *scr, const char *s, size_t len)
-{
- int status;
-
- for (size_t i = 0; i < len; ++i) {
- if (vcons_process_output(scr, s[i]) > 0)
- continue;
- if ((status = vcons_putch(scr, s[i])) != 0) {
- return status;
- }
- }
-
- return 0;
-}
-
-void
-vcons_attach(struct vcons_screen *scr)
-{
- scr->fbdev = fbdev_get_front();
- scr->fbdev_mem = scr->fbdev.mem;
-
- scr->nrows = scr->fbdev.height;
- scr->ncols = scr->fbdev.width;
-
- screen = scr;
- vcons_clear_scr(scr);
-}
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