Support for fonts currently depends on the type of vidconsole in use. Add two new methods to enumerate fonts and to set the font.
Fix a few other method comments while we are here.
Signed-off-by: Simon Glass sjg@chromium.org ---
Changes in v2: - Rename vidconsole_get_font() to vidconsole_get_font_size()
cmd/font.c | 11 ++++- drivers/video/console_truetype.c | 27 +++++++---- drivers/video/vidconsole-uclass.c | 33 ++++++++++++++ include/video_console.h | 75 ++++++++++++++++++++++++++----- test/cmd/font.c | 6 +-- 5 files changed, 127 insertions(+), 25 deletions(-)
diff --git a/cmd/font.c b/cmd/font.c index 3e522f3aaa1..7b4347f32b5 100644 --- a/cmd/font.c +++ b/cmd/font.c @@ -15,7 +15,11 @@ static int do_font_list(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) { - vidconsole_list_fonts(); + struct udevice *dev; + + if (uclass_first_device_err(UCLASS_VIDEO_CONSOLE, &dev)) + return CMD_RET_FAILURE; + vidconsole_list_fonts(dev);
return 0; } @@ -47,6 +51,7 @@ static int do_font_select(struct cmd_tbl *cmdtp, int flag, int argc, static int do_font_size(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) { + const char *font_name; struct udevice *dev; uint size; int ret; @@ -56,9 +61,11 @@ static int do_font_size(struct cmd_tbl *cmdtp, int flag, int argc,
if (uclass_first_device_err(UCLASS_VIDEO_CONSOLE, &dev)) return CMD_RET_FAILURE; + font_name = vidconsole_get_font_size(dev, &size);
size = dectoul(argv[1], NULL); - ret = vidconsole_select_font(dev, NULL, size); + + ret = vidconsole_select_font(dev, font_name, size); if (ret) { printf("Failed (error %d)\n", ret); return CMD_RET_FAILURE; diff --git a/drivers/video/console_truetype.c b/drivers/video/console_truetype.c index 4abc0bc2ff1..9cac9a6de4d 100644 --- a/drivers/video/console_truetype.c +++ b/drivers/video/console_truetype.c @@ -584,14 +584,20 @@ static struct font_info *console_truetype_find_font(void) return NULL; }
-void vidconsole_list_fonts(void) +int console_truetype_get_font(struct udevice *dev, int seq, + struct vidfont_info *info) { struct font_info *tab; + int i;
- for (tab = font_table; tab->begin; tab++) { - if (abs(tab->begin - tab->end) > 4) - printf("%s\n", tab->name); + for (i = 0, tab = font_table; tab->begin; tab++, i++) { + if (i == seq && font_valid(tab)) { + info->name = tab->name; + return 0; + } } + + return -ENOENT; }
/** @@ -674,7 +680,8 @@ static void select_metrics(struct udevice *dev, struct console_tt_metrics *met) vc_priv->tab_width_frac = VID_TO_POS(met->font_size) * 8 / 2; }
-int vidconsole_select_font(struct udevice *dev, const char *name, uint size) +static int truetype_select_font(struct udevice *dev, const char *name, + uint size) { struct console_tt_priv *priv = dev_get_priv(dev); struct console_tt_metrics *met; @@ -684,7 +691,7 @@ int vidconsole_select_font(struct udevice *dev, const char *name, uint size) if (!size) size = CONFIG_CONSOLE_TRUETYPE_SIZE; if (!name) - name = priv->cur_met->font_name; + name = font_table->name;
met = find_metrics(dev, name, size); if (!met) { @@ -694,7 +701,9 @@ int vidconsole_select_font(struct udevice *dev, const char *name, uint size) int ret;
ret = truetype_add_metrics(dev, - tab->name, size, tab->begin); + tab->name, + size, + tab->begin); if (ret < 0) return log_msg_ret("add", ret);
@@ -715,7 +724,7 @@ int vidconsole_select_font(struct udevice *dev, const char *name, uint size) return 0; }
-const char *vidconsole_get_font(struct udevice *dev, uint *sizep) +const char *vidconsole_get_font_size(struct udevice *dev, uint *sizep) { struct console_tt_priv *priv = dev_get_priv(dev); struct console_tt_metrics *met = priv->cur_met; @@ -763,6 +772,8 @@ struct vidconsole_ops console_truetype_ops = { .set_row = console_truetype_set_row, .backspace = console_truetype_backspace, .entry_start = console_truetype_entry_start, + .get_font = console_truetype_get_font, + .select_font = truetype_select_font, };
U_BOOT_DRIVER(vidconsole_truetype) = { diff --git a/drivers/video/vidconsole-uclass.c b/drivers/video/vidconsole-uclass.c index 6bdfb6e37dd..aadd54bfd4f 100644 --- a/drivers/video/vidconsole-uclass.c +++ b/drivers/video/vidconsole-uclass.c @@ -557,6 +557,39 @@ static void vidconsole_puts(struct stdio_dev *sdev, const char *s) } }
+void vidconsole_list_fonts(struct udevice *dev) +{ + struct vidfont_info info; + int ret, i; + + for (i = 0, ret = 0; !ret; i++) { + ret = vidconsole_get_font(dev, i, &info); + if (!ret) + printf("%s\n", info.name); + } +} + +int vidconsole_get_font(struct udevice *dev, int seq, + struct vidfont_info *info) +{ + struct vidconsole_ops *ops = vidconsole_get_ops(dev); + + if (!ops->get_font) + return -ENOSYS; + + return ops->get_font(dev, seq, info); +} + +int vidconsole_select_font(struct udevice *dev, const char *name, uint size) +{ + struct vidconsole_ops *ops = vidconsole_get_ops(dev); + + if (!ops->select_font) + return -ENOSYS; + + return ops->select_font(dev, name, size); +} + /* Set up the number of rows and colours (rotated drivers override this) */ static int vidconsole_pre_probe(struct udevice *dev) { diff --git a/include/video_console.h b/include/video_console.h index d755eb73cf2..9d2c0f210e4 100644 --- a/include/video_console.h +++ b/include/video_console.h @@ -62,6 +62,15 @@ struct vidconsole_priv { char escape_buf[32]; };
+/** + * struct vidfont_info - information about a font + * + * @name: Font name, e.g. nimbus_sans_l_regular + */ +struct vidfont_info { + const char *name; +}; + /** * struct vidconsole_ops - Video console operations * @@ -111,6 +120,9 @@ struct vidconsole_ops { /** * entry_start() - Indicate that text entry is starting afresh * + * @dev: Device to adjust + * Returns: 0 on success, -ve on error + * * Consoles which use proportional fonts need to track the position of * each character output so that backspace will return to the correct * place. This method signals to the console driver that a new entry @@ -123,6 +135,9 @@ struct vidconsole_ops { /** * backspace() - Handle erasing the last character * + * @dev: Device to adjust + * Returns: 0 on success, -ve on error + * * With proportional fonts the vidconsole uclass cannot itself erase * the previous character. This optional method will be called when * a backspace is needed. The driver should erase the previous @@ -133,11 +148,53 @@ struct vidconsole_ops { * characters. */ int (*backspace)(struct udevice *dev); + + /** + * get_font() - Obtain information about a font (optional) + * + * @dev: Device to check + * @seq: Font number to query (0=first, 1=second, etc.) + * @info: Returns font information on success + * Returns: 0 on success, -ENOENT if no such font + */ + int (*get_font)(struct udevice *dev, int seq, + struct vidfont_info *info); + + /** + * select_font() - Select a particular font by name / size + * + * @dev: Device to adjust + * @name: Font name to use (NULL to use default) + * @size: Font size to use (0 to use default) + * Returns: 0 on success, -ENOENT if no such font + */ + int (*select_font)(struct udevice *dev, const char *name, uint size); };
/* Get a pointer to the driver operations for a video console device */ #define vidconsole_get_ops(dev) ((struct vidconsole_ops *)(dev)->driver->ops)
+/** + * vidconsole_get_font() - Obtain information about a font + * + * @dev: Device to check + * @seq: Font number to query (0=first, 1=second, etc.) + * @info: Returns font information on success + * Returns: 0 on success, -ENOENT if no such font, -ENOSYS if there is no such + * method + */ +int vidconsole_get_font(struct udevice *dev, int seq, + struct vidfont_info *info); + +/** + * vidconsole_select_font() - Select a particular font by name / size + * + * @dev: Device to adjust + * @name: Font name to use (NULL to use default) + * @size: Font size to use (0 to use default) + */ +int vidconsole_select_font(struct udevice *dev, const char *name, uint size); + /** * vidconsole_putc_xy() - write a single character to a position * @@ -234,27 +291,21 @@ void vidconsole_set_cursor_pos(struct udevice *dev, int x, int y); /** * vidconsole_list_fonts() - List the available fonts * - * This shows a list on the console - */ -void vidconsole_list_fonts(void); - -/** - * vidconsole_select_font() - Select a font to use + * @dev: vidconsole device to check * - * @dev: vidconsole device - * @name: Font name - * @size: Size of the font (norminal pixel height) or 0 for default + * This shows a list of fonts known by this vidconsole. The list is displayed on + * the console (not necessarily @dev but probably) */ -int vidconsole_select_font(struct udevice *dev, const char *name, uint size); +void vidconsole_list_fonts(struct udevice *dev);
/** - * vidconsole_get_font() - get the current font name and size + * vidconsole_get_font_size() - get the current font name and size * * @dev: vidconsole device * @sizep: Place to put the font size (nominal height in pixels) * Returns: Current font name */ -const char *vidconsole_get_font(struct udevice *dev, uint *sizep); +const char *vidconsole_get_font_size(struct udevice *dev, uint *sizep);
#ifdef CONFIG_VIDEO_COPY /** diff --git a/test/cmd/font.c b/test/cmd/font.c index 7a4156ade62..adb353965a7 100644 --- a/test/cmd/font.c +++ b/test/cmd/font.c @@ -33,7 +33,7 @@ static int font_test_base(struct unit_test_state *uts) ut_assertok(ut_check_console_end(uts));
ut_asserteq_str("nimbus_sans_l_regular", - vidconsole_get_font(dev, &size)); + vidconsole_get_font_size(dev, &size)); ut_asserteq(18, size);
max_metrics = 1; @@ -53,14 +53,14 @@ static int font_test_base(struct unit_test_state *uts) ut_assertok(ut_check_console_end(uts));
ut_asserteq_str("cantoraone_regular", - vidconsole_get_font(dev, &size)); + vidconsole_get_font_size(dev, &size)); ut_asserteq(40, size);
ut_assertok(run_command("font size 30", 0)); ut_assertok(ut_check_console_end(uts));
ut_asserteq_str("cantoraone_regular", - vidconsole_get_font(dev, &size)); + vidconsole_get_font_size(dev, &size)); ut_asserteq(30, size);
return 0;