panel.c (718e05ed92ecac0d9d3954bcc8064527c3ce7565) panel.c (2545c1c948a6a765f1a0e820c7598138b36f67ef)
1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * Front panel driver for Linux
4 * Copyright (C) 2000-2008, Willy Tarreau <w@1wt.eu>
5 * Copyright (C) 2016-2017 Glider bvba
6 *
7 * This code drives an LCD module (/dev/lcd), and a keypad (/dev/keypad)
8 * connected to a parallel printer port.

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294 * Construct custom config from the kernel's configuration
295 */
296#define DEFAULT_PARPORT 0
297#define DEFAULT_PROFILE PANEL_PROFILE_LARGE
298#define DEFAULT_KEYPAD_TYPE KEYPAD_TYPE_OLD
299#define DEFAULT_LCD_TYPE LCD_TYPE_OLD
300#define DEFAULT_LCD_HEIGHT 2
301#define DEFAULT_LCD_WIDTH 40
1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * Front panel driver for Linux
4 * Copyright (C) 2000-2008, Willy Tarreau <w@1wt.eu>
5 * Copyright (C) 2016-2017 Glider bvba
6 *
7 * This code drives an LCD module (/dev/lcd), and a keypad (/dev/keypad)
8 * connected to a parallel printer port.

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294 * Construct custom config from the kernel's configuration
295 */
296#define DEFAULT_PARPORT 0
297#define DEFAULT_PROFILE PANEL_PROFILE_LARGE
298#define DEFAULT_KEYPAD_TYPE KEYPAD_TYPE_OLD
299#define DEFAULT_LCD_TYPE LCD_TYPE_OLD
300#define DEFAULT_LCD_HEIGHT 2
301#define DEFAULT_LCD_WIDTH 40
302#define DEFAULT_LCD_BWIDTH 40
303#define DEFAULT_LCD_HWIDTH 64
304#define DEFAULT_LCD_CHARSET LCD_CHARSET_NORMAL
305#define DEFAULT_LCD_PROTO LCD_PROTO_PARALLEL
306
307#define DEFAULT_LCD_PIN_E PIN_AUTOLF
308#define DEFAULT_LCD_PIN_RS PIN_SELECP
309#define DEFAULT_LCD_PIN_RW PIN_INITP
310#define DEFAULT_LCD_PIN_SCL PIN_STROBE
311#define DEFAULT_LCD_PIN_SDA PIN_D0

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808 w_dtr(pprt, data);
809 udelay(60);
810 spin_unlock_irq(&pprt_lock);
811}
812
813/* fills the display with spaces and resets X/Y */
814static void lcd_clear_fast_s(struct charlcd *charlcd)
815{
302#define DEFAULT_LCD_CHARSET LCD_CHARSET_NORMAL
303#define DEFAULT_LCD_PROTO LCD_PROTO_PARALLEL
304
305#define DEFAULT_LCD_PIN_E PIN_AUTOLF
306#define DEFAULT_LCD_PIN_RS PIN_SELECP
307#define DEFAULT_LCD_PIN_RW PIN_INITP
308#define DEFAULT_LCD_PIN_SCL PIN_STROBE
309#define DEFAULT_LCD_PIN_SDA PIN_D0

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806 w_dtr(pprt, data);
807 udelay(60);
808 spin_unlock_irq(&pprt_lock);
809}
810
811/* fills the display with spaces and resets X/Y */
812static void lcd_clear_fast_s(struct charlcd *charlcd)
813{
814 struct hd44780_common *hdc = charlcd->drvdata;
816 int pos;
817
818 spin_lock_irq(&pprt_lock);
815 int pos;
816
817 spin_lock_irq(&pprt_lock);
819 for (pos = 0; pos < charlcd->height * charlcd->hwidth; pos++) {
818 for (pos = 0; pos < charlcd->height * hdc->hwidth; pos++) {
820 lcd_send_serial(0x5F); /* R/W=W, RS=1 */
821 lcd_send_serial(' ' & 0x0F);
822 lcd_send_serial((' ' >> 4) & 0x0F);
823 /* the shortest data takes at least 40 us */
824 udelay(40);
825 }
826 spin_unlock_irq(&pprt_lock);
827}
828
829/* fills the display with spaces and resets X/Y */
830static void lcd_clear_fast_p8(struct charlcd *charlcd)
831{
819 lcd_send_serial(0x5F); /* R/W=W, RS=1 */
820 lcd_send_serial(' ' & 0x0F);
821 lcd_send_serial((' ' >> 4) & 0x0F);
822 /* the shortest data takes at least 40 us */
823 udelay(40);
824 }
825 spin_unlock_irq(&pprt_lock);
826}
827
828/* fills the display with spaces and resets X/Y */
829static void lcd_clear_fast_p8(struct charlcd *charlcd)
830{
831 struct hd44780_common *hdc = charlcd->drvdata;
832 int pos;
833
834 spin_lock_irq(&pprt_lock);
832 int pos;
833
834 spin_lock_irq(&pprt_lock);
835 for (pos = 0; pos < charlcd->height * charlcd->hwidth; pos++) {
835 for (pos = 0; pos < charlcd->height * hdc->hwidth; pos++) {
836 /* present the data to the data port */
837 w_dtr(pprt, ' ');
838
839 /* maintain the data during 20 us before the strobe */
840 udelay(20);
841
842 set_bit(LCD_BIT_E, bits);
843 set_bit(LCD_BIT_RS, bits);

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854 udelay(45);
855 }
856 spin_unlock_irq(&pprt_lock);
857}
858
859/* fills the display with spaces and resets X/Y */
860static void lcd_clear_fast_tilcd(struct charlcd *charlcd)
861{
836 /* present the data to the data port */
837 w_dtr(pprt, ' ');
838
839 /* maintain the data during 20 us before the strobe */
840 udelay(20);
841
842 set_bit(LCD_BIT_E, bits);
843 set_bit(LCD_BIT_RS, bits);

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854 udelay(45);
855 }
856 spin_unlock_irq(&pprt_lock);
857}
858
859/* fills the display with spaces and resets X/Y */
860static void lcd_clear_fast_tilcd(struct charlcd *charlcd)
861{
862 struct hd44780_common *hdc = charlcd->drvdata;
862 int pos;
863
864 spin_lock_irq(&pprt_lock);
863 int pos;
864
865 spin_lock_irq(&pprt_lock);
865 for (pos = 0; pos < charlcd->height * charlcd->hwidth; pos++) {
866 for (pos = 0; pos < charlcd->height * hdc->hwidth; pos++) {
866 /* present the data to the data port */
867 w_dtr(pprt, ' ');
868 udelay(60);
869 }
870
871 spin_unlock_irq(&pprt_lock);
872}
873

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897{
898 struct charlcd *charlcd;
899 struct hd44780_common *hdc;
900
901 hdc = hd44780_common_alloc();
902 if (!hdc)
903 return;
904
867 /* present the data to the data port */
868 w_dtr(pprt, ' ');
869 udelay(60);
870 }
871
872 spin_unlock_irq(&pprt_lock);
873}
874

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898{
899 struct charlcd *charlcd;
900 struct hd44780_common *hdc;
901
902 hdc = hd44780_common_alloc();
903 if (!hdc)
904 return;
905
905 charlcd = charlcd_alloc(0);
906 charlcd = charlcd_alloc();
906 if (!charlcd) {
907 kfree(hdc);
908 return;
909 }
910
911 hdc->hd44780 = &lcd;
912 charlcd->drvdata = hdc;
913
914 /*
915 * Init lcd struct with load-time values to preserve exact
916 * current functionality (at least for now).
917 */
918 charlcd->height = lcd_height;
919 charlcd->width = lcd_width;
907 if (!charlcd) {
908 kfree(hdc);
909 return;
910 }
911
912 hdc->hd44780 = &lcd;
913 charlcd->drvdata = hdc;
914
915 /*
916 * Init lcd struct with load-time values to preserve exact
917 * current functionality (at least for now).
918 */
919 charlcd->height = lcd_height;
920 charlcd->width = lcd_width;
920 charlcd->bwidth = lcd_bwidth;
921 charlcd->hwidth = lcd_hwidth;
921 hdc->bwidth = lcd_bwidth;
922 hdc->hwidth = lcd_hwidth;
922
923 switch (selected_lcd_type) {
924 case LCD_TYPE_OLD:
925 /* parallel mode, 8 bits */
926 lcd.proto = LCD_PROTO_PARALLEL;
927 lcd.charset = LCD_CHARSET_NORMAL;
928 lcd.pins.e = PIN_STROBE;
929 lcd.pins.rs = PIN_AUTOLF;
930
931 charlcd->width = 40;
923
924 switch (selected_lcd_type) {
925 case LCD_TYPE_OLD:
926 /* parallel mode, 8 bits */
927 lcd.proto = LCD_PROTO_PARALLEL;
928 lcd.charset = LCD_CHARSET_NORMAL;
929 lcd.pins.e = PIN_STROBE;
930 lcd.pins.rs = PIN_AUTOLF;
931
932 charlcd->width = 40;
932 charlcd->bwidth = 40;
933 charlcd->hwidth = 64;
933 hdc->bwidth = 40;
934 hdc->hwidth = 64;
934 charlcd->height = 2;
935 break;
936 case LCD_TYPE_KS0074:
937 /* serial mode, ks0074 */
938 lcd.proto = LCD_PROTO_SERIAL;
939 lcd.charset = LCD_CHARSET_KS0074;
940 lcd.pins.bl = PIN_AUTOLF;
941 lcd.pins.cl = PIN_STROBE;
942 lcd.pins.da = PIN_D0;
943
944 charlcd->width = 16;
935 charlcd->height = 2;
936 break;
937 case LCD_TYPE_KS0074:
938 /* serial mode, ks0074 */
939 lcd.proto = LCD_PROTO_SERIAL;
940 lcd.charset = LCD_CHARSET_KS0074;
941 lcd.pins.bl = PIN_AUTOLF;
942 lcd.pins.cl = PIN_STROBE;
943 lcd.pins.da = PIN_D0;
944
945 charlcd->width = 16;
945 charlcd->bwidth = 40;
946 charlcd->hwidth = 16;
946 hdc->bwidth = 40;
947 hdc->hwidth = 16;
947 charlcd->height = 2;
948 break;
949 case LCD_TYPE_NEXCOM:
950 /* parallel mode, 8 bits, generic */
951 lcd.proto = LCD_PROTO_PARALLEL;
952 lcd.charset = LCD_CHARSET_NORMAL;
953 lcd.pins.e = PIN_AUTOLF;
954 lcd.pins.rs = PIN_SELECP;
955 lcd.pins.rw = PIN_INITP;
956
957 charlcd->width = 16;
948 charlcd->height = 2;
949 break;
950 case LCD_TYPE_NEXCOM:
951 /* parallel mode, 8 bits, generic */
952 lcd.proto = LCD_PROTO_PARALLEL;
953 lcd.charset = LCD_CHARSET_NORMAL;
954 lcd.pins.e = PIN_AUTOLF;
955 lcd.pins.rs = PIN_SELECP;
956 lcd.pins.rw = PIN_INITP;
957
958 charlcd->width = 16;
958 charlcd->bwidth = 40;
959 charlcd->hwidth = 64;
959 hdc->bwidth = 40;
960 hdc->hwidth = 64;
960 charlcd->height = 2;
961 break;
962 case LCD_TYPE_CUSTOM:
963 /* customer-defined */
964 lcd.proto = DEFAULT_LCD_PROTO;
965 lcd.charset = DEFAULT_LCD_CHARSET;
966 /* default geometry will be set later */
967 break;
968 case LCD_TYPE_HANTRONIX:
969 /* parallel mode, 8 bits, hantronix-like */
970 default:
971 lcd.proto = LCD_PROTO_PARALLEL;
972 lcd.charset = LCD_CHARSET_NORMAL;
973 lcd.pins.e = PIN_STROBE;
974 lcd.pins.rs = PIN_SELECP;
975
976 charlcd->width = 16;
961 charlcd->height = 2;
962 break;
963 case LCD_TYPE_CUSTOM:
964 /* customer-defined */
965 lcd.proto = DEFAULT_LCD_PROTO;
966 lcd.charset = DEFAULT_LCD_CHARSET;
967 /* default geometry will be set later */
968 break;
969 case LCD_TYPE_HANTRONIX:
970 /* parallel mode, 8 bits, hantronix-like */
971 default:
972 lcd.proto = LCD_PROTO_PARALLEL;
973 lcd.charset = LCD_CHARSET_NORMAL;
974 lcd.pins.e = PIN_STROBE;
975 lcd.pins.rs = PIN_SELECP;
976
977 charlcd->width = 16;
977 charlcd->bwidth = 40;
978 charlcd->hwidth = 64;
978 hdc->bwidth = 40;
979 hdc->hwidth = 64;
979 charlcd->height = 2;
980 break;
981 }
982
983 /* Overwrite with module params set on loading */
984 if (lcd_height != NOT_SET)
985 charlcd->height = lcd_height;
986 if (lcd_width != NOT_SET)
987 charlcd->width = lcd_width;
988 if (lcd_bwidth != NOT_SET)
980 charlcd->height = 2;
981 break;
982 }
983
984 /* Overwrite with module params set on loading */
985 if (lcd_height != NOT_SET)
986 charlcd->height = lcd_height;
987 if (lcd_width != NOT_SET)
988 charlcd->width = lcd_width;
989 if (lcd_bwidth != NOT_SET)
989 charlcd->bwidth = lcd_bwidth;
990 hdc->bwidth = lcd_bwidth;
990 if (lcd_hwidth != NOT_SET)
991 if (lcd_hwidth != NOT_SET)
991 charlcd->hwidth = lcd_hwidth;
992 hdc->hwidth = lcd_hwidth;
992 if (lcd_charset != NOT_SET)
993 lcd.charset = lcd_charset;
994 if (lcd_proto != NOT_SET)
995 lcd.proto = lcd_proto;
996 if (lcd_e_pin != PIN_NOT_SET)
997 lcd.pins.e = lcd_e_pin;
998 if (lcd_rs_pin != PIN_NOT_SET)
999 lcd.pins.rs = lcd_rs_pin;

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1004 if (lcd_da_pin != PIN_NOT_SET)
1005 lcd.pins.da = lcd_da_pin;
1006 if (lcd_bl_pin != PIN_NOT_SET)
1007 lcd.pins.bl = lcd_bl_pin;
1008
1009 /* this is used to catch wrong and default values */
1010 if (charlcd->width <= 0)
1011 charlcd->width = DEFAULT_LCD_WIDTH;
993 if (lcd_charset != NOT_SET)
994 lcd.charset = lcd_charset;
995 if (lcd_proto != NOT_SET)
996 lcd.proto = lcd_proto;
997 if (lcd_e_pin != PIN_NOT_SET)
998 lcd.pins.e = lcd_e_pin;
999 if (lcd_rs_pin != PIN_NOT_SET)
1000 lcd.pins.rs = lcd_rs_pin;

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1005 if (lcd_da_pin != PIN_NOT_SET)
1006 lcd.pins.da = lcd_da_pin;
1007 if (lcd_bl_pin != PIN_NOT_SET)
1008 lcd.pins.bl = lcd_bl_pin;
1009
1010 /* this is used to catch wrong and default values */
1011 if (charlcd->width <= 0)
1012 charlcd->width = DEFAULT_LCD_WIDTH;
1012 if (charlcd->bwidth <= 0)
1013 charlcd->bwidth = DEFAULT_LCD_BWIDTH;
1014 if (charlcd->hwidth <= 0)
1015 charlcd->hwidth = DEFAULT_LCD_HWIDTH;
1013 if (hdc->bwidth <= 0)
1014 hdc->bwidth = DEFAULT_LCD_BWIDTH;
1015 if (hdc->hwidth <= 0)
1016 hdc->hwidth = DEFAULT_LCD_HWIDTH;
1016 if (charlcd->height <= 0)
1017 charlcd->height = DEFAULT_LCD_HEIGHT;
1018
1019 if (lcd.proto == LCD_PROTO_SERIAL) { /* SERIAL */
1020 charlcd->ops = &charlcd_serial_ops;
1021
1022 if (lcd.pins.cl == PIN_NOT_SET)
1023 lcd.pins.cl = DEFAULT_LCD_PIN_SCL;

--- 784 unchanged lines hidden --- 		1017 if (charlcd->height <= 0)
1018 charlcd->height = DEFAULT_LCD_HEIGHT;
1019
1020 if (lcd.proto == LCD_PROTO_SERIAL) { /* SERIAL */
1021 charlcd->ops = &charlcd_serial_ops;
1022
1023 if (lcd.pins.cl == PIN_NOT_SET)
1024 lcd.pins.cl = DEFAULT_LCD_PIN_SCL;

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