+// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2015 Google, Inc
* (C) Copyright 2001-2015
* DENX Software Engineering -- wd@denx.de
* Compulab Ltd - http://compulab.co.il/
* Bernecker & Rainer Industrieelektronik GmbH - http://www.br-automation.com
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
+#include <linux/ctype.h>
#include <dm.h>
#include <video.h>
#include <video_console.h>
-#include <video_font.h> /* Get font data, width and height */
+#include <video_font.h> /* Bitmap font for code page 437 */
+
+/*
+ * Structure to describe a console color
+ */
+struct vid_rgb {
+ u32 r;
+ u32 g;
+ u32 b;
+};
/* By default we scroll by a single line */
#ifndef CONFIG_CONSOLE_SCROLL_LINES
return ops->set_row(dev, row, clr);
}
+static int vidconsole_entry_start(struct udevice *dev)
+{
+ struct vidconsole_ops *ops = vidconsole_get_ops(dev);
+
+ if (!ops->entry_start)
+ return -ENOSYS;
+ return ops->entry_start(dev);
+}
+
/* Move backwards one space */
-static void vidconsole_back(struct udevice *dev)
+static int vidconsole_back(struct udevice *dev)
{
struct vidconsole_priv *priv = dev_get_uclass_priv(dev);
+ struct vidconsole_ops *ops = vidconsole_get_ops(dev);
+ int ret;
- if (--priv->curr_col < 0) {
- priv->curr_col = priv->cols - 1;
- if (--priv->curr_row < 0)
- priv->curr_row = 0;
+ if (ops->backspace) {
+ ret = ops->backspace(dev);
+ if (ret != -ENOSYS)
+ return ret;
}
- vidconsole_putc_xy(dev, priv->curr_col * VIDEO_FONT_WIDTH,
- priv->curr_row * VIDEO_FONT_HEIGHT, ' ');
+ priv->xcur_frac -= VID_TO_POS(priv->x_charsize);
+ if (priv->xcur_frac < priv->xstart_frac) {
+ priv->xcur_frac = (priv->cols - 1) *
+ VID_TO_POS(priv->x_charsize);
+ priv->ycur -= priv->y_charsize;
+ if (priv->ycur < 0)
+ priv->ycur = 0;
+ }
+ video_sync(dev->parent);
+
+ return 0;
}
/* Move to a newline, scrolling the display if necessary */
const int rows = CONFIG_CONSOLE_SCROLL_LINES;
int i;
- priv->curr_col = 0;
+ priv->xcur_frac = priv->xstart_frac;
+ priv->ycur += priv->y_charsize;
/* Check if we need to scroll the terminal */
- if (++priv->curr_row >= priv->rows) {
+ if ((priv->ycur + priv->y_charsize) / priv->y_charsize > priv->rows) {
vidconsole_move_rows(dev, 0, rows, priv->rows - rows);
for (i = 0; i < rows; i++)
vidconsole_set_row(dev, priv->rows - i - 1,
vid_priv->colour_bg);
- priv->curr_row -= rows;
+ priv->ycur -= rows * priv->y_charsize;
}
+ priv->last_ch = 0;
+
video_sync(dev->parent);
}
+static const struct vid_rgb colors[VID_COLOR_COUNT] = {
+ { 0x00, 0x00, 0x00 }, /* black */
+ { 0xc0, 0x00, 0x00 }, /* red */
+ { 0x00, 0xc0, 0x00 }, /* green */
+ { 0xc0, 0x60, 0x00 }, /* brown */
+ { 0x00, 0x00, 0xc0 }, /* blue */
+ { 0xc0, 0x00, 0xc0 }, /* magenta */
+ { 0x00, 0xc0, 0xc0 }, /* cyan */
+ { 0xc0, 0xc0, 0xc0 }, /* light gray */
+ { 0x80, 0x80, 0x80 }, /* gray */
+ { 0xff, 0x00, 0x00 }, /* bright red */
+ { 0x00, 0xff, 0x00 }, /* bright green */
+ { 0xff, 0xff, 0x00 }, /* yellow */
+ { 0x00, 0x00, 0xff }, /* bright blue */
+ { 0xff, 0x00, 0xff }, /* bright magenta */
+ { 0x00, 0xff, 0xff }, /* bright cyan */
+ { 0xff, 0xff, 0xff }, /* white */
+};
+
+u32 vid_console_color(struct video_priv *priv, unsigned int idx)
+{
+ switch (priv->bpix) {
+ case VIDEO_BPP16:
+ return ((colors[idx].r >> 3) << 11) |
+ ((colors[idx].g >> 2) << 5) |
+ ((colors[idx].b >> 3) << 0);
+ case VIDEO_BPP32:
+ return (colors[idx].r << 16) |
+ (colors[idx].g << 8) |
+ (colors[idx].b << 0);
+ default:
+ /*
+ * For unknown bit arrangements just support
+ * black and white.
+ */
+ if (idx)
+ return 0xffffff; /* white */
+ else
+ return 0x000000; /* black */
+ }
+}
+
+static char *parsenum(char *s, int *num)
+{
+ char *end;
+ *num = simple_strtol(s, &end, 10);
+ return end;
+}
+
+/*
+ * Process a character while accumulating an escape string. Chars are
+ * accumulated into escape_buf until the end of escape sequence is
+ * found, at which point the sequence is parsed and processed.
+ */
+static void vidconsole_escape_char(struct udevice *dev, char ch)
+{
+ struct vidconsole_priv *priv = dev_get_uclass_priv(dev);
+
+ if (!IS_ENABLED(CONFIG_VIDEO_ANSI))
+ goto error;
+
+ /* Sanity checking for bogus ESC sequences: */
+ if (priv->escape_len >= sizeof(priv->escape_buf))
+ goto error;
+ if (priv->escape_len == 0 && ch != '[')
+ goto error;
+
+ priv->escape_buf[priv->escape_len++] = ch;
+
+ /*
+ * Escape sequences are terminated by a letter, so keep
+ * accumulating until we get one:
+ */
+ if (!isalpha(ch))
+ return;
+
+ /*
+ * clear escape mode first, otherwise things will get highly
+ * surprising if you hit any debug prints that come back to
+ * this console.
+ */
+ priv->escape = 0;
+
+ switch (ch) {
+ case 'H':
+ case 'f': {
+ int row, col;
+ char *s = priv->escape_buf;
+
+ /*
+ * Set cursor position: [%d;%df or [%d;%dH
+ */
+ s++; /* [ */
+ s = parsenum(s, &row);
+ s++; /* ; */
+ s = parsenum(s, &col);
+
+ priv->ycur = row * priv->y_charsize;
+ priv->xcur_frac = priv->xstart_frac +
+ VID_TO_POS(col * priv->x_charsize);
+
+ break;
+ }
+ case 'J': {
+ int mode;
+
+ /*
+ * Clear part/all screen:
+ * [J or [0J - clear screen from cursor down
+ * [1J - clear screen from cursor up
+ * [2J - clear entire screen
+ *
+ * TODO we really only handle entire-screen case, others
+ * probably require some additions to video-uclass (and
+ * are not really needed yet by efi_console)
+ */
+ parsenum(priv->escape_buf + 1, &mode);
+
+ if (mode == 2) {
+ video_clear(dev->parent);
+ video_sync(dev->parent);
+ priv->ycur = 0;
+ priv->xcur_frac = priv->xstart_frac;
+ } else {
+ debug("unsupported clear mode: %d\n", mode);
+ }
+ break;
+ }
+ case 'm': {
+ struct video_priv *vid_priv = dev_get_uclass_priv(dev->parent);
+ char *s = priv->escape_buf;
+ char *end = &priv->escape_buf[priv->escape_len];
+
+ /*
+ * Set graphics mode: [%d;...;%dm
+ *
+ * Currently only supports the color attributes:
+ *
+ * Foreground Colors:
+ *
+ * 30 Black
+ * 31 Red
+ * 32 Green
+ * 33 Yellow
+ * 34 Blue
+ * 35 Magenta
+ * 36 Cyan
+ * 37 White
+ *
+ * Background Colors:
+ *
+ * 40 Black
+ * 41 Red
+ * 42 Green
+ * 43 Yellow
+ * 44 Blue
+ * 45 Magenta
+ * 46 Cyan
+ * 47 White
+ */
+
+ s++; /* [ */
+ while (s < end) {
+ int val;
+
+ s = parsenum(s, &val);
+ s++;
+
+ switch (val) {
+ case 0:
+ /* all attributes off */
+ video_set_default_colors(vid_priv);
+ break;
+ case 1:
+ /* bold */
+ vid_priv->fg_col_idx |= 8;
+ vid_priv->colour_fg = vid_console_color(
+ vid_priv, vid_priv->fg_col_idx);
+ break;
+ case 30 ... 37:
+ /* foreground color */
+ vid_priv->fg_col_idx &= ~7;
+ vid_priv->fg_col_idx |= val - 30;
+ vid_priv->colour_fg = vid_console_color(
+ vid_priv, vid_priv->fg_col_idx);
+ break;
+ case 40 ... 47:
+ /* background color */
+ vid_priv->colour_bg = vid_console_color(
+ vid_priv, val - 40);
+ break;
+ default:
+ /* ignore unsupported SGR parameter */
+ break;
+ }
+ }
+
+ break;
+ }
+ default:
+ debug("unrecognized escape sequence: %*s\n",
+ priv->escape_len, priv->escape_buf);
+ }
+
+ return;
+
+error:
+ /* something went wrong, just revert to normal mode: */
+ priv->escape = 0;
+}
+
int vidconsole_put_char(struct udevice *dev, char ch)
{
struct vidconsole_priv *priv = dev_get_uclass_priv(dev);
int ret;
+ if (priv->escape) {
+ vidconsole_escape_char(dev, ch);
+ return 0;
+ }
+
switch (ch) {
+ case '\x1b':
+ priv->escape_len = 0;
+ priv->escape = 1;
+ break;
+ case '\a':
+ /* beep */
+ break;
case '\r':
- priv->curr_col = 0;
+ priv->xcur_frac = priv->xstart_frac;
break;
case '\n':
vidconsole_newline(dev);
+ vidconsole_entry_start(dev);
break;
case '\t': /* Tab (8 chars alignment) */
- priv->curr_col += 8;
- priv->curr_col &= ~7;
+ priv->xcur_frac = ((priv->xcur_frac / priv->tab_width_frac)
+ + 1) * priv->tab_width_frac;
- if (priv->curr_col >= priv->cols)
+ if (priv->xcur_frac >= priv->xsize_frac)
vidconsole_newline(dev);
break;
case '\b':
vidconsole_back(dev);
+ priv->last_ch = 0;
break;
default:
/*
* colour depth. Check this and return an error to help with
* diagnosis.
*/
- ret = vidconsole_putc_xy(dev,
- priv->curr_col * VIDEO_FONT_WIDTH,
- priv->curr_row * VIDEO_FONT_HEIGHT,
- ch);
- if (ret)
+ ret = vidconsole_putc_xy(dev, priv->xcur_frac, priv->ycur, ch);
+ if (ret == -EAGAIN) {
+ vidconsole_newline(dev);
+ ret = vidconsole_putc_xy(dev, priv->xcur_frac,
+ priv->ycur, ch);
+ }
+ if (ret < 0)
return ret;
- if (++priv->curr_col >= priv->cols)
+ priv->xcur_frac += ret;
+ priv->last_ch = ch;
+ if (priv->xcur_frac >= priv->xsize_frac)
vidconsole_newline(dev);
break;
}
struct udevice *dev = sdev->priv;
vidconsole_put_char(dev, ch);
+ video_sync(dev->parent);
}
static void vidconsole_puts(struct stdio_dev *sdev, const char *s)
while (*s)
vidconsole_put_char(dev, *s++);
+ video_sync(dev->parent);
}
/* Set up the number of rows and colours (rotated drivers override this) */
struct udevice *vid = dev->parent;
struct video_priv *vid_priv = dev_get_uclass_priv(vid);
- priv->rows = vid_priv->ysize / VIDEO_FONT_HEIGHT;
- priv->cols = vid_priv->xsize / VIDEO_FONT_WIDTH;
+ priv->xsize_frac = VID_TO_POS(vid_priv->xsize);
return 0;
}
{
struct vidconsole_priv *priv = dev_get_uclass_priv(dev);
struct stdio_dev *sdev = &priv->sdev;
- int ret;
+
+ if (!priv->tab_width_frac)
+ priv->tab_width_frac = VID_TO_POS(priv->x_charsize) * 8;
if (dev->seq) {
snprintf(sdev->name, sizeof(sdev->name), "vidconsole%d",
} else {
strcpy(sdev->name, "vidconsole");
}
+
sdev->flags = DEV_FLAGS_OUTPUT;
sdev->putc = vidconsole_putc;
sdev->puts = vidconsole_puts;
sdev->priv = dev;
- ret = stdio_register(sdev);
- if (ret)
- return ret;
- return 0;
+ return stdio_register(sdev);
}
UCLASS_DRIVER(vidconsole) = {
void vidconsole_position_cursor(struct udevice *dev, unsigned col, unsigned row)
{
struct vidconsole_priv *priv = dev_get_uclass_priv(dev);
+ struct udevice *vid_dev = dev->parent;
+ struct video_priv *vid_priv = dev_get_uclass_priv(vid_dev);
- priv->curr_col = min_t(short, col, priv->cols - 1);
- priv->curr_row = min_t(short, row, priv->rows - 1);
+ priv->xcur_frac = VID_TO_POS(min_t(short, col, vid_priv->xsize - 1));
+ priv->ycur = min_t(short, row, vid_priv->ysize - 1);
}
static int do_video_setcursor(cmd_tbl_t *cmdtp, int flag, int argc,
if (argc != 3)
return CMD_RET_USAGE;
- uclass_first_device(UCLASS_VIDEO_CONSOLE, &dev);
- if (!dev)
+ if (uclass_first_device_err(UCLASS_VIDEO_CONSOLE, &dev))
return CMD_RET_FAILURE;
col = simple_strtoul(argv[1], NULL, 10);
row = simple_strtoul(argv[2], NULL, 10);
if (argc != 2)
return CMD_RET_USAGE;
- uclass_first_device(UCLASS_VIDEO_CONSOLE, &dev);
- if (!dev)
+ if (uclass_first_device_err(UCLASS_VIDEO_CONSOLE, &dev))
return CMD_RET_FAILURE;
for (s = argv[1]; *s; s++)
vidconsole_put_char(dev, *s);
+ video_sync(dev->parent);
+
return 0;
}
projects / u-boot / blobdiff