+// 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 <command.h>
+#include <log.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
if (priv->ycur < 0)
priv->ycur = 0;
}
- video_sync(dev->parent);
+ video_sync(dev->parent, false);
return 0;
}
}
priv->last_ch = 0;
- video_sync(dev->parent);
+ video_sync(dev->parent, false);
+}
+
+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:
+ if (CONFIG_IS_ENABLED(VIDEO_BPP16)) {
+ return ((colors[idx].r >> 3) << 11) |
+ ((colors[idx].g >> 2) << 5) |
+ ((colors[idx].b >> 3) << 0);
+ }
+ break;
+ case VIDEO_BPP32:
+ if (CONFIG_IS_ENABLED(VIDEO_BPP32)) {
+ return (colors[idx].r << 16) |
+ (colors[idx].g << 8) |
+ (colors[idx].b << 0);
+ }
+ break;
+ default:
+ break;
+ }
+
+ /*
+ * For unknown bit arrangements just support
+ * black and white.
+ */
+ if (idx)
+ return 0xffffff; /* white */
+
+ return 0x000000; /* black */
+}
+
+static char *parsenum(char *s, int *num)
+{
+ char *end;
+ *num = simple_strtol(s, &end, 10);
+ return end;
+}
+
+/**
+ * set_cursor_position() - set cursor position
+ *
+ * @priv: private data of the video console
+ * @row: new row
+ * @col: new column
+ */
+static void set_cursor_position(struct vidconsole_priv *priv, int row, int col)
+{
+ /*
+ * Ensure we stay in the bounds of the screen.
+ */
+ if (row >= priv->rows)
+ row = priv->rows - 1;
+ if (col >= priv->cols)
+ col = priv->cols - 1;
+
+ priv->ycur = row * priv->y_charsize;
+ priv->xcur_frac = priv->xstart_frac +
+ VID_TO_POS(col * priv->x_charsize);
+}
+
+/**
+ * get_cursor_position() - get cursor position
+ *
+ * @priv: private data of the video console
+ * @row: row
+ * @col: column
+ */
+static void get_cursor_position(struct vidconsole_priv *priv,
+ int *row, int *col)
+{
+ *row = priv->ycur / priv->y_charsize;
+ *col = VID_TO_PIXEL(priv->xcur_frac - priv->xstart_frac) /
+ priv->x_charsize;
+}
+
+/*
+ * 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) {
+ switch (ch) {
+ case '7':
+ /* Save cursor position */
+ get_cursor_position(priv, &priv->row_saved,
+ &priv->col_saved);
+ priv->escape = 0;
+
+ return;
+ case '8': {
+ /* Restore cursor position */
+ int row = priv->row_saved;
+ int col = priv->col_saved;
+
+ set_cursor_position(priv, row, col);
+ priv->escape = 0;
+ return;
+ }
+ case '[':
+ break;
+ default:
+ 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 'A':
+ case 'B':
+ case 'C':
+ case 'D':
+ case 'E':
+ case 'F': {
+ int row, col, num;
+ char *s = priv->escape_buf;
+
+ /*
+ * Cursor up/down: [%dA, [%dB, [%dE, [%dF
+ * Cursor left/right: [%dD, [%dC
+ */
+ s++; /* [ */
+ s = parsenum(s, &num);
+ if (num == 0) /* No digit in sequence ... */
+ num = 1; /* ... means "move by 1". */
+
+ get_cursor_position(priv, &row, &col);
+ if (ch == 'A' || ch == 'F')
+ row -= num;
+ if (ch == 'C')
+ col += num;
+ if (ch == 'D')
+ col -= num;
+ if (ch == 'B' || ch == 'E')
+ row += num;
+ if (ch == 'E' || ch == 'F')
+ col = 0;
+ if (col < 0)
+ col = 0;
+ if (row < 0)
+ row = 0;
+ /* Right and bottom overflows are handled in the callee. */
+ set_cursor_position(priv, row, col);
+ break;
+ }
+ 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);
+
+ /*
+ * Video origin is [0, 0], terminal origin is [1, 1].
+ */
+ if (row)
+ --row;
+ if (col)
+ --col;
+
+ set_cursor_position(priv, row, col);
+
+ 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, false);
+ priv->ycur = 0;
+ priv->xcur_frac = priv->xstart_frac;
+ } else {
+ debug("unsupported clear mode: %d\n", mode);
+ }
+ break;
+ }
+ case 'K': {
+ struct video_priv *vid_priv = dev_get_uclass_priv(dev->parent);
+ int mode;
+
+ /*
+ * Clear (parts of) current line
+ * [0K - clear line to end
+ * [2K - clear entire line
+ */
+ parsenum(priv->escape_buf + 1, &mode);
+
+ if (mode == 2) {
+ int row, col;
+
+ get_cursor_position(priv, &row, &col);
+ vidconsole_set_row(dev, row, vid_priv->colour_bg);
+ }
+ 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(dev->parent, false);
+ 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 7:
+ /* reverse video */
+ vid_priv->colour_fg = vid_console_color(
+ vid_priv, vid_priv->bg_col_idx);
+ vid_priv->colour_bg = 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, also mask the bold bit */
+ vid_priv->bg_col_idx &= ~0xf;
+ vid_priv->bg_col_idx |= val - 40;
+ vid_priv->colour_bg = vid_console_color(
+ vid_priv, vid_priv->bg_col_idx);
+ 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;
+}
+
+/* Put that actual character on the screen (using the CP437 code page). */
+static int vidconsole_output_glyph(struct udevice *dev, char ch)
+{
+ struct vidconsole_priv *priv = dev_get_uclass_priv(dev);
+ int ret;
+
+ /*
+ * Failure of this function normally indicates an unsupported
+ * colour depth. Check this and return an error to help with
+ * diagnosis.
+ */
+ 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;
+ priv->xcur_frac += ret;
+ priv->last_ch = ch;
+ if (priv->xcur_frac >= priv->xsize_frac)
+ vidconsole_newline(dev);
+
+ return 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;
priv->last_ch = 0;
break;
default:
- /*
- * Failure of this function normally indicates an unsupported
- * colour depth. Check this and return an error to help with
- * diagnosis.
- */
- 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);
- }
+ ret = vidconsole_output_glyph(dev, ch);
if (ret < 0)
return ret;
- priv->xcur_frac += ret;
- priv->last_ch = ch;
- if (priv->xcur_frac >= priv->xsize_frac)
- vidconsole_newline(dev);
break;
}
return 0;
}
+int vidconsole_put_string(struct udevice *dev, const char *str)
+{
+ const char *s;
+ int ret;
+
+ for (s = str; *s; s++) {
+ ret = vidconsole_put_char(dev, *s);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
static void vidconsole_putc(struct stdio_dev *sdev, const char ch)
{
struct udevice *dev = sdev->priv;
vidconsole_put_char(dev, ch);
+ video_sync(dev->parent, false);
}
static void vidconsole_puts(struct stdio_dev *sdev, const char *s)
{
struct udevice *dev = sdev->priv;
- while (*s)
- vidconsole_put_char(dev, *s++);
- video_sync(dev->parent);
+ vidconsole_put_string(dev, s);
+ video_sync(dev->parent, false);
}
/* Set up the number of rows and colours (rotated drivers override this) */
struct udevice *vid_dev = dev->parent;
struct video_priv *vid_priv = dev_get_uclass_priv(vid_dev);
+ col *= priv->x_charsize;
+ row *= priv->y_charsize;
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,
+static int do_video_setcursor(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
unsigned int col, row;
return 0;
}
-static int do_video_puts(cmd_tbl_t *cmdtp, int flag, int argc,
+static int do_video_puts(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
struct udevice *dev;
for (s = argv[1]; *s; s++)
vidconsole_put_char(dev, *s);
+ video_sync(dev->parent, false);
+
return 0;
}
projects / oweals / u-boot.git / blobdiff