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-rw-r--r--oncology/dpfhack_display/lcd4linux/.svn/text-base/drv_M50530.c.svn-base688
1 files changed, 0 insertions, 688 deletions
diff --git a/oncology/dpfhack_display/lcd4linux/.svn/text-base/drv_M50530.c.svn-base b/oncology/dpfhack_display/lcd4linux/.svn/text-base/drv_M50530.c.svn-base
deleted file mode 100644
index c982cfa2..00000000
--- a/oncology/dpfhack_display/lcd4linux/.svn/text-base/drv_M50530.c.svn-base
+++ /dev/null
@@ -1,688 +0,0 @@
-/* $Id$
- * $URL$
- *
- * new style driver for M50530-based displays
- *
- * Copyright (C) 2003 Michael Reinelt <michael@reinelt.co.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.
- *
- */
-
-/*
- *
- * exported fuctions:
- *
- * struct DRIVER drv_M50530
- *
- */
-
-#include "config.h"
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <errno.h>
-#include <unistd.h>
-#include <termios.h>
-#include <fcntl.h>
-#include <sys/time.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_gpio.h"
-#include "drv_generic_parport.h"
-
-static char Name[] = "M50530";
-
-static int Model;
-
-/* Timings */
-static int T_SU, T_W, T_D, T_H;
-static int T_INIT, T_EXEC, T_CLEAR;
-static int T_GPO_ST, T_GPO_PW;
-
-static unsigned char SIGNAL_RW;
-static unsigned char SIGNAL_EX;
-static unsigned char SIGNAL_IOC1;
-static unsigned char SIGNAL_IOC2;
-static unsigned char SIGNAL_GPO;
-
-static int FONT5X11;
-static int DDRAM;
-static int DUTY;
-
-/* maximum time to wait for the busy-flag (in usec) */
-#define MAX_BUSYFLAG_WAIT 10000
-
-/* maximum busy flag errors before falling back to busy-waiting */
-#define MAX_BUSYFLAG_ERRORS 20
-
-/* flag for busy-waiting vs. busy flag checking */
-static int UseBusy = 0;
-
-/* buffer holding the GPO state */
-static unsigned char GPO = 0;
-
-
-typedef struct {
- int type;
- char *name;
-} MODEL;
-
-static MODEL Models[] = {
- {0x01, "M50530"},
- {0xff, "Unknown"}
-};
-
-
-/****************************************/
-/*** hardware dependant functions ***/
-/****************************************/
-
-static void drv_M5_busy(void)
-{
- static unsigned int errors = 0;
-
- unsigned char data = 0xFF;
- unsigned char busymask = 0x88;
- unsigned int counter;
-
- /* set data-lines to input */
- drv_generic_parport_direction(1);
-
- /* clear I/OC1 and I/OC2, set R/W */
- drv_generic_parport_control(SIGNAL_IOC1 | SIGNAL_IOC2 | SIGNAL_RW, SIGNAL_RW);
-
- /* Control data setup time */
- ndelay(T_SU);
-
- counter = 0;
- while (1) {
-
- /* rise enable */
- drv_generic_parport_control(SIGNAL_EX, SIGNAL_EX);
-
- /* data output delay time */
- ndelay(T_D);
-
- /* read the busy flag */
- data = drv_generic_parport_read();
-
- /* lower enable */
- /* as T_D is larger than T_W, we don't need to delay again */
- drv_generic_parport_control(SIGNAL_EX, 0);
-
- if ((data & busymask) == 0) {
- errors = 0;
- break;
- }
-
- /* make sure we don't wait forever
- * - but only check after 5 iterations
- * that way, we won't slow down normal mode
- * (where we don't need the timeout anyway)
- */
- counter++;
-
- if (counter >= 5) {
- struct timeval now, end;
-
- if (counter == 5) {
- /* determine the time when the timeout has expired */
- gettimeofday(&end, NULL);
- end.tv_usec += MAX_BUSYFLAG_WAIT;
- while (end.tv_usec > 1000000) {
- end.tv_usec -= 1000000;
- end.tv_sec++;
- }
- }
-
- /* get the current time */
- gettimeofday(&now, NULL);
- if (now.tv_sec == end.tv_sec ? now.tv_usec >= end.tv_usec : now.tv_sec >= end.tv_sec) {
- error("%s: timeout waiting for busy flag (0x%02x)", Name, data);
- if (++errors >= MAX_BUSYFLAG_ERRORS) {
- error("%s: too many busy flag failures, turning off busy flag checking.", Name);
- UseBusy = 0;
- }
- break;
- }
- }
- }
-
- /* clear R/W */
- drv_generic_parport_control(SIGNAL_RW, 0);
-
- /* honour data hold time */
- ndelay(T_H);
-
- /* set data-lines to output */
- drv_generic_parport_direction(0);
-
-}
-
-
-static void drv_M5_command(const unsigned int cmd, const int delay)
-{
-
- if (UseBusy)
- drv_M5_busy();
-
- /* put data on DB1..DB8 */
- drv_generic_parport_data(cmd & 0xff);
-
- /* set I/OC1 */
- /* set I/OC2 */
- /* clear RW */
- drv_generic_parport_control(SIGNAL_IOC1 | SIGNAL_IOC2 | SIGNAL_RW,
- (cmd & 0x100 ? SIGNAL_IOC1 : 0) | (cmd & 0x200 ? SIGNAL_IOC2 : 0));
-
- /* Control data setup time */
- ndelay(T_SU);
-
- /* send command */
- drv_generic_parport_toggle(SIGNAL_EX, 1, T_W);
-
- if (UseBusy) {
- /* honour data hold time */
- ndelay(T_H);
- } else {
- /* wait for command completion */
- udelay(delay);
- }
-}
-
-
-static void drv_M5_clear(void)
-{
- drv_M5_command(0x0001, T_CLEAR); /* clear display */
-}
-
-
-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;
-
- if (row < 4) {
- pos = row * (DDRAM >> DUTY) + col;
- } else {
- pos = (row - 4) * (DDRAM >> DUTY) + (DDRAM >> DUTY) / 2 + col;
- }
-
- drv_M5_command(0x300 | pos, T_EXEC);
-
- while (l--) {
- cmd = *(unsigned char *) data++;
- drv_M5_command(0x200 | cmd, T_EXEC);
- }
-}
-
-
-static void drv_M5_defchar(const int ascii, const unsigned char *matrix)
-{
- int i;
-
- drv_M5_command(0x300 + DDRAM + 8 * (ascii - CHAR0), T_EXEC);
-
- for (i = 0; i < YRES; i++) {
- drv_M5_command(0x200 | (matrix[i] & 0x3f), T_EXEC);
- }
-}
-
-
-static int drv_M5_GPO(const int num, const int val)
-{
- int v;
-
- if (val > 0) {
- /* set bit */
- v = 1;
- GPO |= 1 << num;
- } else {
- /* clear bit */
- v = 0;
- GPO &= ~(1 << num);
- }
-
- /* put data on DB1..DB8 */
- drv_generic_parport_data(GPO);
-
- /* 74HCT573 set-up time */
- ndelay(T_GPO_ST);
-
- /* send data */
- /* 74HCT573 enable pulse width */
- drv_generic_parport_toggle(SIGNAL_GPO, 1, T_GPO_PW);
-
- return v;
-}
-
-
-static int drv_M5_start(const char *section, const int quiet)
-{
- char *s;
- int n;
- int rows = -1, cols = -1;
- unsigned int SF;
-
- s = cfg_get(section, "Model", "generic");
- if (s != NULL && *s != '\0') {
- int i;
- for (i = 0; Models[i].type != 0xff; i++) {
- if (strcasecmp(Models[i].name, s) == 0)
- break;
- }
- free(s);
- if (Models[i].type == 0xff) {
- error("%s: %s.Model '%s' is unknown from %s", Name, section, s, 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());
- free(s);
- 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());
- free(s);
- 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;
- }
- free(s);
- DROWS = rows;
- DCOLS = cols;
-
- s = cfg_get(section, "Font", "5x7");
- if (s == NULL && *s == '\0') {
- error("%s: empty '%s.Font' entry from %s", Name, section, cfg_source());
- free(s);
- return -1;
- }
- if (strcasecmp(s, "5x7") == 0) {
- XRES = 5;
- YRES = 7;
- FONT5X11 = 0;
- } else if (strcasecmp(s, "5x11") == 0) {
- XRES = 5;
- YRES = 11;
- FONT5X11 = 1;
- } else {
- error("%s: bad '%s.Font' entry '%s' from %s", Name, section, s, cfg_source());
- error("%s: should be '5x7' or '5x11'", Name);
- free(s);
- return -1;
- }
- free(s);
-
-
- if (DCOLS * DROWS > 256) {
- error("%s: %s.Size '%dx%d' is too big, would require %d bytes", Name, section, DCOLS, DROWS, DCOLS * DROWS);
- return -1;
- } else if (DCOLS * DROWS > 224) {
- DDRAM = 256;
- CHARS = 0;
- } else if (DCOLS * DROWS > 192) {
- DDRAM = 224;
- CHARS = FONT5X11 ? 2 : 4;
- } else if (DCOLS * DROWS > 160) {
- DDRAM = 192;
- CHARS = FONT5X11 ? 4 : 8;
- } else {
- DDRAM = 160;
- CHARS = FONT5X11 ? 6 : 12;
- }
- info("%s: using %d words DDRAM / %d words CGRAM (%d user chars)", Name, DDRAM, 256 - DDRAM, CHARS);
-
- if (cfg_number(section, "DUTY", 2, 0, 2, &DUTY) < 0)
- return -1;
- info("%s: using duty %d: 1/%d, %d lines x %d words", Name, DUTY, (XRES + 1) << DUTY, 1 << DUTY, DDRAM >> DUTY);
-
-
- if (cfg_number(section, "GPOs", 0, 0, 8, &n) < 0)
- return -1;
- GPOS = n;
- if (GPOS > 0) {
- info("%s: controlling %d GPO's", Name, GPOS);
- }
-
- if (drv_generic_parport_open(section, Name) != 0) {
- error("%s: could not initialize parallel port!", Name);
- return -1;
- }
-
- if ((SIGNAL_RW = drv_generic_parport_wire_ctrl("RW", "GND")) == 0xff)
- 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;
-
- /* Timings */
-
- /* low level communication timings [nanoseconds]
- * we use the worst-case default values, but allow
- * modification from the config file.
- */
-
- T_SU = timing(Name, section, "SU", 200, "ns"); /* control data setup time */
- T_W = timing(Name, section, "W", 500, "ns"); /* EX signal pulse width */
- T_D = timing(Name, section, "D", 300, "ns"); /* Data output delay time */
- T_H = timing(Name, section, "H", 100, "ns"); /* Data hold time */
-
- /* GPO timing */
- if (SIGNAL_GPO != 0) {
- T_GPO_ST = timing(Name, section, "GPO_ST", 20, "ns"); /* 74HCT573 set-up time */
- T_GPO_PW = timing(Name, section, "GPO_PW", 230, "ns"); /* 74HCT573 enable pulse width */
- } else {
- T_GPO_ST = 0;
- T_GPO_PW = 0;
- }
-
- /* M50530 execution timings [microseconds]
- * we use the worst-case default values, but allow
- * modification from the config file.
- */
-
- T_EXEC = timing(Name, section, "EXEC", 20, "us"); /* normal execution time */
- T_CLEAR = timing(Name, section, "CLEAR", 1250, "us"); /* 'clear display' execution time */
- T_INIT = timing(Name, section, "INIT", 2000, "us"); /* mysterious initialization time */
-
-
- /* maybe use busy-flag from now on */
- cfg_number(section, "UseBusy", 0, 0, 1, &UseBusy);
-
- /* make sure we don't use the busy flag with RW wired to GND */
- if (UseBusy && !SIGNAL_RW) {
- error("%s: busy-flag checking is impossible with RW wired to GND!", Name);
- UseBusy = 0;
- }
- info("%s: %susing busy-flag checking", Name, UseBusy ? "" : "not ");
-
- /* clear all signals */
- drv_generic_parport_control(SIGNAL_RW | SIGNAL_EX | SIGNAL_IOC1 | SIGNAL_IOC2 | SIGNAL_GPO, 0);
-
- /* for some mysterious reason, this delay is necessary... */
- udelay(T_INIT);
-
- /* set direction: write */
- drv_generic_parport_direction(0);
-
-
- /* set function (SF) mode:
- * Bit 0 : RAM 0
- * Bit 1 : RAM 1
- * Bit 2 : DUTY 0
- * Bit 3 : DUTY 1
- * Bit 4 : FONT: 0 = 5x12, 1 = 5x8
- * Bit 5 : I/O: 0 = 4-bit, 1 = 8-bit
- * Bit 6 : 1
- * Bit 7 : 1
- *
- * RAM layout:
- * 00: 256 words DDRAM, 0 words CGRAM
- * 01: 224 words DDRAM, 32 words CGRAM
- * 10: 192 words DDRAM, 64 words CGRAM
- * 11: 160 words DDRAM, 96 words CGRAM
- *
- * Duty:
- * 00: 1/8 (1/12 for 5x11), 1 line
- * 00: 1/16 (1/24 for 5x11), 2 lines
- * 00: 1/32 (1/48 for 5x11), 4 lines
- * 11: undefined
- */
-
- /* 11100000 : SF, 8-bit mode */
- SF = 0xE0;
-
- /* RAM layout */
- switch (DDRAM) {
- case 160:
- SF |= 0x03;
- break;
- case 192:
- SF |= 0x02;
- break;
- case 224:
- SF |= 0x01;
- break;
- case 256:
- SF |= 0x00;
- break;
- }
-
- /* Duty */
- SF |= (DUTY << 2);
-
- /* Font */
- SF |= (!FONT5X11) << 4;
-
-
- debug("SET FUNCTION MODE 0x%02x", SF);
- drv_M5_command(SF, T_EXEC);
-
-
- /* set display (SD) mode:
- * Bit 0 : 1 = turn on character blinking
- * Bit 0 : 1 = turn on cursor blinking
- * Bit 0 : 1 = turn on underline display
- * Bit 0 : 1 = turn on cursor
- * Bit 0 : 1 = turn on display
- * Bit 0 : 1
- * Bit 0 : 0
- * Bit 0 : 0
- */
-
- /* SD: 0x20 = 00100000 */
- /* SD: turn off display */
- drv_M5_command(0x0020, T_EXEC);
-
-
- /* set entry (SE) mode:
- * Bit 0 : 1 = inc/dec cursor address after Read
- * Bit 1 : 1 = inc/dec cursor address after Write
- * Bit 2 : 0 = inc, 1 = dec
- * Bit 3 : 1 = inc/dec display start addr after Read
- * Bit 4 : 1 = inc/dec display start addr after Write
- * Bit 5 : 0 = inc, 1 = dec
- * Bit 6 : 1
- * Bit 7 : 0
- *
- */
-
- /* SE: 0x50 = 01010000 */
- /* SE: increment display start after Write */
- drv_M5_command(0x0050, T_EXEC);
-
-
- /* SD: 0x30 = 00110000 */
- /* SD: turn on display */
- drv_M5_command(0x0030, T_EXEC);
-
-
- 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;
-}
-
-
-/****************************************/
-/*** plugins ***/
-/****************************************/
-
-/* none at the moment */
-
-
-/****************************************/
-/*** widget callbacks ***/
-/****************************************/
-
-/* using drv_generic_text_draw(W) */
-/* using drv_generic_text_icon_draw(W) */
-/* using drv_generic_text_bar_draw(W) */
-/* using drv_generic_gpio_draw(W) */
-
-
-/****************************************/
-/*** exported functions ***/
-/****************************************/
-
-
-/* list models */
-int drv_M5_list(void)
-{
- 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)
-{
- WIDGET_CLASS wc;
- int ret;
-
- info("%s: %s", Name, "$Rev$");
-
- /* display preferences */
- XRES = -1; /* pixel width of one char */
- YRES = -1; /* pixel height of one char */
- CHARS = 0; /* 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;
- drv_generic_gpio_real_set = drv_M5_GPO;
-
-
- /* 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 */
-
- /* initialize generic GPIO driver */
- if ((ret = drv_generic_gpio_init(section, Name)) != 0)
- return ret;
-
- /* 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();
- drv_generic_gpio_quit();
-
- /* clear display */
- drv_M5_clear();
-
- /* say goodbye... */
- if (!quiet) {
- drv_generic_text_greet("goodbye!", NULL);
- }
-
- /* clear all signals */
- drv_generic_parport_control(SIGNAL_RW | 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,
-};
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