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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/auxdisplay/hd44780_common.h
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--drivers/auxdisplay/hd44780_common.h33
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/auxdisplay/hd44780_common.h b/drivers/auxdisplay/hd44780_common.h
new file mode 100644
index 000000000..a16aa8c29
--- /dev/null
+++ b/drivers/auxdisplay/hd44780_common.h
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#define DEFAULT_LCD_BWIDTH 40
+#define DEFAULT_LCD_HWIDTH 64
+
+struct hd44780_common {
+ int ifwidth; /* 4-bit or 8-bit (default) */
+ int bwidth; /* Default set by hd44780_alloc() */
+ int hwidth; /* Default set by hd44780_alloc() */
+ unsigned long hd44780_common_flags;
+ void (*write_data)(struct hd44780_common *hdc, int data);
+ void (*write_cmd)(struct hd44780_common *hdc, int cmd);
+ /* write_cmd_raw4 is for 4-bit connected displays only */
+ void (*write_cmd_raw4)(struct hd44780_common *hdc, int cmd);
+ void *hd44780;
+};
+
+int hd44780_common_print(struct charlcd *lcd, int c);
+int hd44780_common_gotoxy(struct charlcd *lcd, unsigned int x, unsigned int y);
+int hd44780_common_home(struct charlcd *lcd);
+int hd44780_common_clear_display(struct charlcd *lcd);
+int hd44780_common_init_display(struct charlcd *lcd);
+int hd44780_common_shift_cursor(struct charlcd *lcd,
+ enum charlcd_shift_dir dir);
+int hd44780_common_shift_display(struct charlcd *lcd,
+ enum charlcd_shift_dir dir);
+int hd44780_common_display(struct charlcd *lcd, enum charlcd_onoff on);
+int hd44780_common_cursor(struct charlcd *lcd, enum charlcd_onoff on);
+int hd44780_common_blink(struct charlcd *lcd, enum charlcd_onoff on);
+int hd44780_common_fontsize(struct charlcd *lcd, enum charlcd_fontsize size);
+int hd44780_common_lines(struct charlcd *lcd, enum charlcd_lines lines);
+int hd44780_common_redefine_char(struct charlcd *lcd, char *esc);
+struct hd44780_common *hd44780_common_alloc(void);