diff options
Diffstat (limited to 'drivers/video/vidconsole-uclass.c')
| -rw-r--r-- | drivers/video/vidconsole-uclass.c | 84 |
1 files changed, 60 insertions, 24 deletions
diff --git a/drivers/video/vidconsole-uclass.c b/drivers/video/vidconsole-uclass.c index 706a189..f6326b6 100644 --- a/drivers/video/vidconsole-uclass.c +++ b/drivers/video/vidconsole-uclass.c @@ -47,19 +47,38 @@ int vidconsole_set_row(struct udevice *dev, uint row, int clr) 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; + } + + return 0; } /* Move to a newline, scrolling the display if necessary */ @@ -71,16 +90,19 @@ static void vidconsole_newline(struct udevice *dev) 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); } @@ -90,21 +112,26 @@ int vidconsole_put_char(struct udevice *dev, char ch) int ret; switch (ch) { + 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: /* @@ -112,13 +139,17 @@ int vidconsole_put_char(struct udevice *dev, char ch) * 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; } @@ -148,8 +179,7 @@ static int vidconsole_pre_probe(struct udevice *dev) 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; } @@ -161,12 +191,16 @@ static int vidconsole_post_probe(struct udevice *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", dev->seq); } else { strcpy(sdev->name, "vidconsole"); } + sdev->flags = DEV_FLAGS_OUTPUT; sdev->putc = vidconsole_putc; sdev->puts = vidconsole_puts; @@ -189,9 +223,11 @@ 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, |