diff options
Diffstat (limited to 'drv_PHAnderson.c')
| -rw-r--r-- | drv_PHAnderson.c | 416 |
1 files changed, 416 insertions, 0 deletions
diff --git a/drv_PHAnderson.c b/drv_PHAnderson.c new file mode 100644 index 0000000..667d0b0 --- /dev/null +++ b/drv_PHAnderson.c @@ -0,0 +1,416 @@ +/* $Id: drv_PHAnderson.c 840 2008-11-19 23:56:42 guimli $ + * $URL: https://ssl.bulix.org/svn/lcd4linux/trunk/drv_PHAnderson.c $ + * + * driver for the PHAnderson serial-to-HD44780 adapter boards + * http://www.phanderson.com/lcd106/lcd107.html + * http://moderndevice.com/Docs/LCD117CommandSummary.doc + * http://wulfden.org/TheShoppe/k107/index.shtml + * + * Copyright (C) 2008 Nicolas Weill <guimli@free.fr> + * Copyright (C) 2005 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net> + * + * This file is part of LCD4Linux. + * + * LCD4Linux is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * LCD4Linux is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +/* + * + * exported fuctions: + * + * struct DRIVER drv_PHAnderson + * + */ + +#include "config.h" + +#include <stdlib.h> +#include <unistd.h> +#include <string.h> + +#include "debug.h" +#include "cfg.h" +#include "qprintf.h" +#include "udelay.h" +#include "plugin.h" +#include "widget.h" +#include "widget_text.h" +#include "widget_icon.h" +#include "widget_bar.h" +#include "drv.h" +#include "drv_generic_text.h" +#include "drv_generic_serial.h" + +#define PHAnderson_CMD '?' + +static char Name[] = "PHAnderson"; + +static int T_READ, T_WRITE, T_BOOT; + + +/****************************************/ +/*** hardware dependant functions ***/ +/****************************************/ + +static int drv_PHAnderson_open(const char *section) +{ + if (drv_generic_serial_open(section, Name, 0) < 0) + return -1; + + return 0; +} + + +static int drv_PHAnderson_close(void) +{ + drv_generic_serial_close(); + + return 0; +} + + +static void drv_PHAnderson_send(const char *data, const unsigned int len) +{ + char buffer[255]; + unsigned int i, j; + + j = 0; + for (i = 0; i < len; i++) { + if (data[i] < 8) { + buffer[j++] = '?'; + buffer[j++] = '0' + data[i]; + drv_generic_serial_write(buffer, j); + udelay(T_READ); + + j = 0; + } else { + buffer[j++] = data[i]; + } + } + + if (j > 0) { + drv_generic_serial_write(buffer, j); + } +} + + +static void drv_PHAnderson_clear(void) +{ + char cmd[2]; + + cmd[0] = '?'; + cmd[1] = 'f'; + drv_PHAnderson_send(cmd, 2); +} + + +static void drv_PHAnderson_write(const int row, const int col, const char *data, int len) +{ + char cmd[7]; + + cmd[0] = '?'; + cmd[1] = 'y'; + cmd[2] = row + '0'; + cmd[3] = '?'; + cmd[4] = 'x'; + cmd[5] = col / 10 + '0'; + cmd[6] = col % 10 + '0'; + drv_PHAnderson_send(cmd, 7); + + drv_PHAnderson_send(data, len); +} + + +static void drv_PHAnderson_defchar(const int ascii, const unsigned char *matrix) +{ + char cmd[19]; + int i; + + cmd[0] = '?'; + cmd[1] = 'D'; + cmd[2] = ascii + '0'; + + for (i = 0; i < 8; i++) { + cmd[i * 2 + 3] = ((matrix[i] >> 4) & 1) + '0'; + cmd[i * 2 + 4] = (((matrix[i] & 0x0F) < 10) ? (matrix[i] & 0x0F) + '0' : (matrix[i] & 0x0F) + '7'); + } + drv_PHAnderson_send(cmd, 19); + udelay(T_WRITE); +} + + +static int drv_PHAnderson_blacklight(int blacklight) +{ + char cmd[4]; + + if (blacklight < 0) + blacklight = 0; + if (blacklight > 255) + blacklight = 255; + + cmd[0] = '?'; + cmd[1] = 'B'; + cmd[2] = (((blacklight >> 4) < 10) ? (blacklight >> 4) + '0' : (blacklight >> 4) + '7'); + cmd[3] = (((blacklight & 0x0F) < 10) ? (blacklight & 0x0F) + '0' : (blacklight & 0x0F) + '7'); + drv_PHAnderson_send(cmd, 4); + udelay(T_WRITE); + + return blacklight; +} + +static int drv_PHAnderson_bootscreen(const char *bootmsg) +{ + char cmd[255]; + int i, j, k; + + i = 0; + j = 0; + k = 0; + + if (bootmsg == NULL || *bootmsg == '\0') { + cmd[0] = '?'; + cmd[1] = 'S'; + cmd[2] = '0'; + drv_PHAnderson_send(cmd, 3); + udelay(T_WRITE); + } else { + cmd[0] = '?'; + cmd[1] = 'S'; + cmd[2] = '2'; + drv_PHAnderson_send(cmd, 3); + udelay(T_WRITE); + cmd[0] = '?'; + cmd[1] = 'C'; + for (i = 0; i < DROWS; i++) { + cmd[2] = '0' + i; + for (k = 0; k < DCOLS; k++) { + if (bootmsg[j] != '\0') { + cmd[3 + k] = bootmsg[j]; + j++; + } else { + cmd[3 + k] = ' '; + } + } + drv_PHAnderson_send(cmd, k + 3); + udelay(T_BOOT); + } + } + + return j; +} + +static int drv_PHAnderson_start(const char *section) +{ + int blacklight; + int rows = -1, cols = -1; + char *s; + char cmd[255]; + + s = cfg_get(section, "Size", NULL); + if (s == NULL || *s == '\0') { + error("%s: no '%s.Size' entry from %s", Name, section, cfg_source()); + return -1; + } + if (sscanf(s, "%dx%d", &cols, &rows) != 2 || rows < 1 || cols < 1) { + error("%s: bad %s.Size '%s' from %s", Name, section, s, cfg_source()); + free(s); + return -1; + } + + DROWS = rows; + DCOLS = cols; + + /* PHAnderson execution timings [milliseconds] + * we use the worst-case default values, but allow + * modification from the config file. + */ + + T_WRITE = timing(Name, section, "WRITE", 170, "ms") * 1000; /* write eeprom time */ + T_READ = timing(Name, section, "READ", 10, "ms") * 1000; /* read eeprom time */ + T_BOOT = timing(Name, section, "BOOT", 300, "ms") * 1000; /* boot screen write eeprom time */ + + if (drv_PHAnderson_open(section) < 0) { + return -1; + } + + /* Define screen size */ + cmd[0] = '?'; + cmd[1] = 'G'; + cmd[2] = rows + '0'; + cmd[3] = (cols / 10) + '0'; + cmd[4] = (cols % 10) + '0'; + drv_PHAnderson_send(cmd, 5); + udelay(T_WRITE); + + /* Hide cursor */ + cmd[0] = '?'; + cmd[1] = 'c'; + cmd[2] = '0'; + drv_PHAnderson_send(cmd, 3); + udelay(T_WRITE); + + if (cfg_number(section, "Blacklight", 0, 0, 255, &blacklight) > 0) { + drv_PHAnderson_blacklight(blacklight); + } + + s = cfg_get(section, "Bootscreen", NULL); + printf(s); + drv_PHAnderson_bootscreen(s); + + drv_PHAnderson_clear(); /* clear display */ + + return 0; +} + +/****************************************/ +/*** plugins ***/ +/****************************************/ + +static void plugin_blacklight(RESULT * result, RESULT * arg1) +{ + double blacklight; + + blacklight = drv_PHAnderson_blacklight(R2N(arg1)); + SetResult(&result, R_NUMBER, &blacklight); +} + +static void plugin_bootscreen(RESULT * result, RESULT * arg1) +{ + double bootmsg; + + bootmsg = drv_PHAnderson_bootscreen(R2S(arg1)); + SetResult(&result, R_NUMBER, &bootmsg); +} + +/****************************************/ +/*** widget callbacks ***/ +/****************************************/ + + +/* using drv_generic_text_draw(W) */ +/* using drv_generic_text_icon_draw(W) */ +/* using drv_generic_text_bar_draw(W) */ + + +/****************************************/ +/*** exported functions ***/ +/****************************************/ + + +/* list models */ +int drv_PHAnderson_list(void) +{ + printf("PHAnderson serial-to-HD44780 adapter"); + return 0; +} + +int drv_PHAnderson_init(const char *section, const int quiet) +{ + WIDGET_CLASS wc; + int ret; + + info("%s: %s", Name, "$Rev: 840 $"); + + /* display preferences */ + XRES = 5; /* pixel width of one char */ + YRES = 8; /* pixel height of one char */ + CHARS = 8; /* number of user-defineable characters */ + CHAR0 = 0; /* ASCII of first user-defineable char */ + GOTO_COST = 7; /* number of bytes a goto command requires */ + + /* real worker functions */ + drv_generic_text_real_write = drv_PHAnderson_write; + drv_generic_text_real_defchar = drv_PHAnderson_defchar; + + /* start display */ + if ((ret = drv_PHAnderson_start(section)) != 0) + return ret; + + if (!quiet) { + char buffer[40]; + qprintf(buffer, sizeof(buffer), "%s %dx%d", Name, DCOLS, DROWS); + if (drv_generic_text_greet(buffer, "www.bwct.de")) { + sleep(3); + drv_PHAnderson_clear(); + } + } + + /* initialize generic text driver */ + if ((ret = drv_generic_text_init(section, Name)) != 0) + return ret; + + /* initialize generic icon driver */ + if ((ret = drv_generic_text_icon_init()) != 0) + return ret; + + /* initialize generic bar driver */ + if ((ret = drv_generic_text_bar_init(0)) != 0) + return ret; + + /* add fixed chars to the bar driver */ + drv_generic_text_bar_add_segment(0, 0, 0, 32); /* ASCII 32 = blank */ + + /* register text widget */ + wc = Widget_Text; + wc.draw = drv_generic_text_draw; + widget_register(&wc); + + /* register icon widget */ + wc = Widget_Icon; + wc.draw = drv_generic_text_icon_draw; + widget_register(&wc); + + /* register bar widget */ + wc = Widget_Bar; + wc.draw = drv_generic_text_bar_draw; + widget_register(&wc); + + /* register plugins */ + AddFunction("LCD::blacklight", 1, plugin_blacklight); + + AddFunction("LCD::bootscreen", 1, plugin_bootscreen); + + return 0; +} + + +int drv_PHAnderson_quit(const int quiet) +{ + + info("%s: shutting down.", Name); + + drv_generic_text_quit(); + + drv_PHAnderson_clear(); + + /* say goodbye... */ + if (!quiet) { + drv_generic_text_greet("goodbye!", NULL); + } + + debug("closing connection"); + drv_PHAnderson_close(); + + return (0); +} + + +DRIVER drv_PHAnderson = { + .name = Name, + .list = drv_PHAnderson_list, + .init = drv_PHAnderson_init, + .quit = drv_PHAnderson_quit, +}; |