diff options
Diffstat (limited to 'drv_M50530.c')
| -rw-r--r-- | drv_M50530.c | 651 |
1 files changed, 329 insertions, 322 deletions
diff --git a/drv_M50530.c b/drv_M50530.c index 93e6cd4..7e8bb75 100644 --- a/drv_M50530.c +++ b/drv_M50530.c @@ -1,104 +1,107 @@ -#/* $Id: drv_M50530.c,v 1.17 2005/05/05 08:36:12 reinelt Exp $ - * - * new style driver for M50530-based displays - * - * Copyright (C) 2003 Michael Reinelt <reinelt@eunet.at> - * Copyright (C) 2004 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. - * - * - * $Log: drv_M50530.c,v $ - * Revision 1.17 2005/05/05 08:36:12 reinelt - * changed SELECT to SLCTIN - * - * Revision 1.16 2005/01/18 06:30:23 reinelt - * added (C) to all copyright statements - * - * Revision 1.15 2005/01/06 16:54:53 reinelt - * M50530 fixes - * - * Revision 1.14 2004/06/26 12:04:59 reinelt - * - * uh-oh... the last CVS log message messed up things a lot... - * - * Revision 1.13 2004/06/26 09:27:20 reinelt - * - * added '-W' to CFLAGS - * changed all C++ comments to C ones - * cleaned up a lot of signed/unsigned mistakes - * - * Revision 1.12 2004/06/20 10:09:54 reinelt - * - * 'const'ified the whole source - * - * Revision 1.11 2004/06/06 06:51:59 reinelt - * - * do not display end splash screen if quiet=1 - * - * Revision 1.10 2004/06/05 06:41:39 reinelt - * - * chancged splash screen again - * - * Revision 1.9 2004/06/05 06:13:12 reinelt - * - * splash screen for all text-based display drivers - * - * Revision 1.8 2004/06/02 09:41:19 reinelt - * - * prepared support for startup splash screen - * - * Revision 1.7 2004/06/01 06:45:29 reinelt - * - * some Fixme's processed - * documented some code - * - * Revision 1.6 2004/05/31 05:38:02 reinelt - * - * fixed possible bugs with user-defined chars (clear high bits) - * thanks to Andy Baxter for debugging the MilfordInstruments driver! - * - * Revision 1.5 2004/05/29 15:53:28 reinelt - * - * M50530: reset parport signals on exit - * plugin_ppp: ppp() has two parameters, not three - * lcd4linux.conf.sample: diskstats() corrected - * - * Revision 1.4 2004/05/26 11:37:36 reinelt - * - * Curses driver ported. - * - * Revision 1.3 2004/03/19 09:17:46 reinelt - * - * removed the extra 'goto' function, row and col are additional parameters - * of the write() function now. - * - * Revision 1.2 2004/02/15 21:43:43 reinelt - * T6963 driver nearly finished - * framework for graphic displays done - * i2c_sensors patch from Xavier - * some more old generation files removed - * - * Revision 1.1 2004/02/15 08:22:47 reinelt - * ported USBLCD driver to NextGeneration - * added drv_M50530.c (I forgot yesterday, sorry) - * removed old drivers M50530.c and USBLCD.c - * - */ +# /* $Id: drv_M50530.c,v 1.18 2005/05/08 04:32:44 reinelt Exp $ + * + * new style driver for M50530-based displays + * + * Copyright (C) 2003 Michael Reinelt <reinelt@eunet.at> + * Copyright (C) 2004 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. + * + * + * $Log: drv_M50530.c,v $ + * Revision 1.18 2005/05/08 04:32:44 reinelt + * CodingStyle added and applied + * + * Revision 1.17 2005/05/05 08:36:12 reinelt + * changed SELECT to SLCTIN + * + * Revision 1.16 2005/01/18 06:30:23 reinelt + * added (C) to all copyright statements + * + * Revision 1.15 2005/01/06 16:54:53 reinelt + * M50530 fixes + * + * Revision 1.14 2004/06/26 12:04:59 reinelt + * + * uh-oh... the last CVS log message messed up things a lot... + * + * Revision 1.13 2004/06/26 09:27:20 reinelt + * + * added '-W' to CFLAGS + * changed all C++ comments to C ones + * cleaned up a lot of signed/unsigned mistakes + * + * Revision 1.12 2004/06/20 10:09:54 reinelt + * + * 'const'ified the whole source + * + * Revision 1.11 2004/06/06 06:51:59 reinelt + * + * do not display end splash screen if quiet=1 + * + * Revision 1.10 2004/06/05 06:41:39 reinelt + * + * chancged splash screen again + * + * Revision 1.9 2004/06/05 06:13:12 reinelt + * + * splash screen for all text-based display drivers + * + * Revision 1.8 2004/06/02 09:41:19 reinelt + * + * prepared support for startup splash screen + * + * Revision 1.7 2004/06/01 06:45:29 reinelt + * + * some Fixme's processed + * documented some code + * + * Revision 1.6 2004/05/31 05:38:02 reinelt + * + * fixed possible bugs with user-defined chars (clear high bits) + * thanks to Andy Baxter for debugging the MilfordInstruments driver! + * + * Revision 1.5 2004/05/29 15:53:28 reinelt + * + * M50530: reset parport signals on exit + * plugin_ppp: ppp() has two parameters, not three + * lcd4linux.conf.sample: diskstats() corrected + * + * Revision 1.4 2004/05/26 11:37:36 reinelt + * + * Curses driver ported. + * + * Revision 1.3 2004/03/19 09:17:46 reinelt + * + * removed the extra 'goto' function, row and col are additional parameters + * of the write() function now. + * + * Revision 1.2 2004/02/15 21:43:43 reinelt + * T6963 driver nearly finished + * framework for graphic displays done + * i2c_sensors patch from Xavier + * some more old generation files removed + * + * Revision 1.1 2004/02/15 08:22:47 reinelt + * ported USBLCD driver to NextGeneration + * added drv_M50530.c (I forgot yesterday, sorry) + * removed old drivers M50530.c and USBLCD.c + * + */ /* * @@ -132,7 +135,7 @@ #include "drv_generic_text.h" #include "drv_generic_parport.h" -static char Name[]="M50530"; +static char Name[] = "M50530"; static int Model; @@ -147,13 +150,13 @@ static int GPOS; typedef struct { - int type; - char *name; + int type; + char *name; } MODEL; static MODEL Models[] = { - { 0x01, "generic" }, - { 0xff, "Unknown" } + {0x01, "generic"}, + {0xff, "Unknown"} }; @@ -161,164 +164,169 @@ static MODEL Models[] = { /*** hardware dependant functions ***/ /****************************************/ -static void drv_M5_command (const unsigned int cmd, const int delay) +static void drv_M5_command(const unsigned int cmd, const int delay) { - - /* put data on DB1..DB8 */ - drv_generic_parport_data (cmd & 0xff); - - /* set I/OC1 */ - /* set I/OC2 */ - drv_generic_parport_control (SIGNAL_IOC1 | SIGNAL_IOC2, - (cmd & 0x100 ? SIGNAL_IOC1 : 0) | - (cmd & 0x200 ? SIGNAL_IOC2 : 0)); - - /* Control data setup time */ - ndelay(200); - - /* send command */ - /* EX signal pulse width = 500ns */ - /* Fixme: why 500 ns? Datasheet says 200ns */ - drv_generic_parport_toggle (SIGNAL_EX, 1, 500); - - /* wait */ - udelay(delay); + + /* put data on DB1..DB8 */ + drv_generic_parport_data(cmd & 0xff); + + /* set I/OC1 */ + /* set I/OC2 */ + drv_generic_parport_control(SIGNAL_IOC1 | SIGNAL_IOC2, (cmd & 0x100 ? SIGNAL_IOC1 : 0) | (cmd & 0x200 ? SIGNAL_IOC2 : 0)); + + /* Control data setup time */ + ndelay(200); + + /* send command */ + /* EX signal pulse width = 500ns */ + /* Fixme: why 500 ns? Datasheet says 200ns */ + drv_generic_parport_toggle(SIGNAL_EX, 1, 500); + + /* wait */ + udelay(delay); } -static void drv_M5_clear (void) +static void drv_M5_clear(void) { - drv_M5_command (0x0001, 1250); /* clear display */ + drv_M5_command(0x0001, 1250); /* clear display */ } -static void drv_M5_write (const int row, const int col, const char *data, const int len) +static void drv_M5_write(const int row, const int col, const char *data, const int len) { - int l = len; - unsigned int cmd; - unsigned int pos; - - pos = row * 48 + col; - if (row > 3) pos -= 168; - drv_M5_command (0x300 | pos, 20); - - while (l--) { - cmd = *(unsigned char*)data++; - drv_M5_command (0x200 | cmd, 20); - } + int l = len; + unsigned int cmd; + unsigned int pos; + + pos = row * 48 + col; + if (row > 3) + pos -= 168; + drv_M5_command(0x300 | pos, 20); + + while (l--) { + cmd = *(unsigned char *) data++; + drv_M5_command(0x200 | cmd, 20); + } } -static void drv_M5_defchar (const int ascii, const unsigned char *matrix) +static void drv_M5_defchar(const int ascii, const unsigned char *matrix) { - int i; - - drv_M5_command (0x300 + 192 + 8 * (ascii - CHAR0), 20); - - /* Fixme: looks like the M50530 cannot control the bottom line */ - /* therefore we have only 7 bytes here */ - for (i = 0; i < 7; i++) { - drv_M5_command (0x200 | (matrix[i] & 0x3f), 20); - } + int i; + + drv_M5_command(0x300 + 192 + 8 * (ascii - CHAR0), 20); + + /* Fixme: looks like the M50530 cannot control the bottom line */ + /* therefore we have only 7 bytes here */ + for (i = 0; i < 7; i++) { + drv_M5_command(0x200 | (matrix[i] & 0x3f), 20); + } } /* Fixme: GPO's */ #if 0 -static void drv_M5_setGPO (const int bits) +static void drv_M5_setGPO(const int bits) { - if (Lcd.gpos>0) { + if (Lcd.gpos > 0) { - /* put data on DB1..DB8 */ - drv_generic_parport_data (bits); - - /* 74HCT573 set-up time */ - ndelay(20); - - /* send data */ - /* 74HCT573 enable pulse width = 24ns */ - drv_generic_parport_toggle (SIGNAL_GPO, 1, 24); - } + /* put data on DB1..DB8 */ + drv_generic_parport_data(bits); + + /* 74HCT573 set-up time */ + ndelay(20); + + /* send data */ + /* 74HCT573 enable pulse width = 24ns */ + drv_generic_parport_toggle(SIGNAL_GPO, 1, 24); + } } #endif -static int drv_M5_start (const char *section, const int quiet) +static int drv_M5_start(const char *section, const int quiet) { - char *model, *s; - int rows=-1, cols=-1, gpos=-1; - - model=cfg_get(section, "Model", "generic"); - if (model!=NULL && *model!='\0') { - int i; - for (i=0; Models[i].type!=0xff; i++) { - if (strcasecmp(Models[i].name, model)==0) break; + char *model, *s; + int rows = -1, cols = -1, gpos = -1; + + model = cfg_get(section, "Model", "generic"); + if (model != NULL && *model != '\0') { + int i; + for (i = 0; Models[i].type != 0xff; i++) { + if (strcasecmp(Models[i].name, model) == 0) + break; + } + if (Models[i].type == 0xff) { + error("%s: %s.Model '%s' is unknown from %s", Name, section, model, cfg_source()); + return -1; + } + Model = i; + info("%s: using model '%s'", Name, Models[Model].name); + } else { + error("%s: empty '%s.Model' entry from %s", Name, section, cfg_source()); + return -1; + } + + 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 size '%s'", Name, s); + return -1; } - if (Models[i].type==0xff) { - error ("%s: %s.Model '%s' is unknown from %s", Name, section, model, cfg_source()); - return -1; + + if (cfg_number(section, "GPOs", 0, 0, 8, &gpos) < 0) + return -1; + info("%s: controlling %d GPO's", Name, gpos); + + DROWS = rows; + DCOLS = cols; + GPOS = gpos; + + if (drv_generic_parport_open(section, Name) != 0) { + error("%s: could not initialize parallel port!", Name); + return -1; } - Model=i; - info ("%s: using model '%s'", Name, Models[Model].name); - } else { - error ("%s: empty '%s.Model' entry from %s", Name, section, cfg_source()); - return -1; - } - - 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 size '%s'", Name, s); - return -1; - } - - if (cfg_number(section, "GPOs", 0, 0, 8, &gpos)<0) return -1; - info ("%s: controlling %d GPO's", Name, gpos); - - DROWS = rows; - DCOLS = cols; - GPOS = gpos; - - if (drv_generic_parport_open(section, Name) != 0) { - error ("%s: could not initialize parallel port!", Name); - return -1; - } - - if ((SIGNAL_EX = drv_generic_parport_wire_ctrl ("EX", "STROBE"))==0xff) return -1; - if ((SIGNAL_IOC1 = drv_generic_parport_wire_ctrl ("IOC1", "SLCTIN"))==0xff) return -1; - if ((SIGNAL_IOC2 = drv_generic_parport_wire_ctrl ("IOC2", "AUTOFD"))==0xff) return -1; - if ((SIGNAL_GPO = drv_generic_parport_wire_ctrl ("GPO", "GND" ))==0xff) return -1; - - /* clear all signals */ - drv_generic_parport_control (SIGNAL_EX|SIGNAL_IOC1|SIGNAL_IOC2|SIGNAL_GPO, 0); - - /* for any mysterious reason, this delay is necessary... */ - udelay(2000); - - /* set direction: write */ - drv_generic_parport_direction (0); - - drv_M5_command (0x00FA, 20); /* set function mode */ - drv_M5_command (0x0020, 20); /* set display mode */ - drv_M5_command (0x0050, 20); /* set entry mode */ - drv_M5_command (0x0030, 20); /* set display mode */ - - drv_M5_clear(); - - if (!quiet) { - char buffer[40]; - qprintf(buffer, sizeof(buffer), "%s %dx%d", Name, DCOLS, DROWS); - if (drv_generic_text_greet (buffer, NULL)) { - sleep (3); - drv_M5_clear(); + + if ((SIGNAL_EX = drv_generic_parport_wire_ctrl("EX", "STROBE")) == 0xff) + return -1; + if ((SIGNAL_IOC1 = drv_generic_parport_wire_ctrl("IOC1", "SLCTIN")) == 0xff) + return -1; + if ((SIGNAL_IOC2 = drv_generic_parport_wire_ctrl("IOC2", "AUTOFD")) == 0xff) + return -1; + if ((SIGNAL_GPO = drv_generic_parport_wire_ctrl("GPO", "GND")) == 0xff) + return -1; + + /* clear all signals */ + drv_generic_parport_control(SIGNAL_EX | SIGNAL_IOC1 | SIGNAL_IOC2 | SIGNAL_GPO, 0); + + /* for any mysterious reason, this delay is necessary... */ + udelay(2000); + + /* set direction: write */ + drv_generic_parport_direction(0); + + drv_M5_command(0x00FA, 20); /* set function mode */ + drv_M5_command(0x0020, 20); /* set display mode */ + drv_M5_command(0x0050, 20); /* set entry mode */ + drv_M5_command(0x0030, 20); /* set display mode */ + + drv_M5_clear(); + + if (!quiet) { + char buffer[40]; + qprintf(buffer, sizeof(buffer), "%s %dx%d", Name, DCOLS, DROWS); + if (drv_generic_text_greet(buffer, NULL)) { + sleep(3); + drv_M5_clear(); + } } - } - return 0; + return 0; } @@ -344,106 +352,105 @@ static int drv_M5_start (const char *section, const int quiet) /* list models */ -int drv_M5_list (void) +int drv_M5_list(void) { - int i; - - for (i=0; Models[i].type!=0xff; i++) { - printf ("%s ", Models[i].name); - } - return 0; + int i; + + for (i = 0; Models[i].type != 0xff; i++) { + printf("%s ", Models[i].name); + } + return 0; } /* initialize driver & display */ -int drv_M5_init (const char *section, const int quiet) +int drv_M5_init(const char *section, const int quiet) { - WIDGET_CLASS wc; - int ret; - - /* display preferences */ - XRES = 5; /* pixel width of one char */ - YRES = 8; /* pixel height of one char */ - CHARS = 8; /* number of user-defineable characters */ - CHAR0 = 248; /* ASCII of first user-defineable char */ - GOTO_COST = 1; /* number of bytes a goto command requires */ - - /* real worker functions */ - drv_generic_text_real_write = drv_M5_write; - drv_generic_text_real_defchar = drv_M5_defchar; - - - /* start display */ - if ((ret = drv_M5_start (section, quiet)) != 0) - return ret; - - /* 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, 255, 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 */ - /* none at the moment */ - - return 0; + WIDGET_CLASS wc; + int ret; + + /* display preferences */ + XRES = 5; /* pixel width of one char */ + YRES = 8; /* pixel height of one char */ + CHARS = 8; /* number of user-defineable characters */ + CHAR0 = 248; /* ASCII of first user-defineable char */ + GOTO_COST = 1; /* number of bytes a goto command requires */ + + /* real worker functions */ + drv_generic_text_real_write = drv_M5_write; + drv_generic_text_real_defchar = drv_M5_defchar; + + + /* start display */ + if ((ret = drv_M5_start(section, quiet)) != 0) + return ret; + + /* 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, 255, 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 */ + /* none at the moment */ + + return 0; } /* close driver & display */ -int drv_M5_quit (const int quiet) { - - info("%s: shutting down.", Name); - - drv_generic_text_quit(); - - /* clear display */ - drv_M5_clear(); - - /* say goodbye... */ - if (!quiet) { - drv_generic_text_greet ("goodbye!", NULL); - } - - /* clear all signals */ - drv_generic_parport_control (SIGNAL_EX|SIGNAL_IOC1|SIGNAL_IOC2|SIGNAL_GPO, 0); - - /* close port */ - drv_generic_parport_close(); - - return (0); +int drv_M5_quit(const int quiet) +{ + + info("%s: shutting down.", Name); + + drv_generic_text_quit(); + + /* clear display */ + drv_M5_clear(); + + /* say goodbye... */ + if (!quiet) { + drv_generic_text_greet("goodbye!", NULL); + } + + /* clear all signals */ + drv_generic_parport_control(SIGNAL_EX | SIGNAL_IOC1 | SIGNAL_IOC2 | SIGNAL_GPO, 0); + + /* close port */ + drv_generic_parport_close(); + + return (0); } DRIVER drv_M50530 = { - name: Name, - list: drv_M5_list, - init: drv_M5_init, - quit: drv_M5_quit, + name:Name, + list:drv_M5_list, + init:drv_M5_init, + quit:drv_M5_quit, }; - - |