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/* $Id: drv_Crystalfontz.c,v 1.36 2005/09/07 06:51:44 reinelt Exp $ * * new style driver for Crystalfontz display modules * * Copyright (C) 1999, 2000 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_Crystalfontz.c,v $ * Revision 1.36 2005/09/07 06:51:44 reinelt * Support for CF635 added * * Revision 1.35 2005/08/21 08:18:56 reinelt * CrystalFontz ACK processing * * Revision 1.34 2005/05/08 04:32:44 reinelt * CodingStyle added and applied * * Revision 1.33 2005/04/02 05:28:58 reinelt * fixed gcc4 warnings about signed/unsigned mismatches * * Revision 1.32 2005/03/23 12:23:35 reinelt * fixed some signed/unsigned char mismatches in the Crystalfontz driver (ticket #12) * * Revision 1.31 2005/02/24 07:06:48 reinelt * SimpleLCD driver added * * Revision 1.30 2005/01/18 06:30:22 reinelt * added (C) to all copyright statements * * Revision 1.29 2004/06/26 12:04:59 reinelt * * uh-oh... the last CVS log message messed up things a lot... * * Revision 1.28 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 1.27 2004/06/20 10:09:54 reinelt * * 'const'ified the whole source * * Revision 1.26 2004/06/06 06:51:59 reinelt * * do not display end splash screen if quiet=1 * * Revision 1.25 2004/06/05 06:41:39 reinelt * * chancged splash screen again * * Revision 1.24 2004/06/05 06:13:11 reinelt * * splash screen for all text-based display drivers * * Revision 1.23 2004/06/02 09:41:19 reinelt * * prepared support for startup splash screen * * Revision 1.22 2004/06/02 05:56:25 reinelt * * extended contrast range for Crystalfontz * * Revision 1.21 2004/06/01 06:45:28 reinelt * * some Fixme's processed * documented some code * * Revision 1.20 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 1.19 2004/05/30 08:25:50 reinelt * * Crystalfontz 631 driver finished * * Revision 1.18 2004/05/28 13:51:42 reinelt * * ported driver for Beckmann+Egle Mini-Terminals * added 'flags' parameter to serial_init() * * Revision 1.17 2004/05/27 03:39:47 reinelt * * changed function naming scheme to plugin::function * * Revision 1.16 2004/05/26 11:37:36 reinelt * * Curses driver ported. * * Revision 1.15 2004/05/25 14:26:29 reinelt * * added "Image" driver (was: Raster.c) for PPM and PNG creation * fixed some glitches in the X11 driver * * Revision 1.14 2004/03/19 09:17:46 reinelt * * removed the extra 'goto' function, row and col are additional parameters * of the write() function now. * * Revision 1.13 2004/03/03 03:41:02 reinelt * Crystalfontz Contrast issue fixed * * Revision 1.12 2004/03/01 04:29:51 reinelt * cfg_number() returns -1 on error, 0 if value not found (but default val used), * and 1 if value was used from the configuration. * HD44780 driver adopted to new cfg_number() * Crystalfontz 631 driver nearly finished * * Revision 1.11 2004/02/14 11:56:17 reinelt * M50530 driver ported * changed lots of 'char' to 'unsigned char' * * Revision 1.10 2004/02/05 07:10:23 reinelt * evaluator function names are no longer case-sensitive * Crystalfontz Fan PWM control, Fan RPM monitoring, temperature monitoring * * Revision 1.9 2004/02/04 19:10:51 reinelt * Crystalfontz driver nearly finished * * Revision 1.8 2004/02/01 08:05:12 reinelt * Crystalfontz 633 extensions (CRC checking and stuff) * Models table for HD44780 * Noritake VFD BVrightness patch from Bill Paxton * * Revision 1.7 2004/01/30 20:57:56 reinelt * HD44780 patch from Martin Hejl * dmalloc integrated * * Revision 1.6 2004/01/29 04:40:02 reinelt * every .c file includes "config.h" now * * Revision 1.5 2004/01/25 05:30:09 reinelt * plugin_netdev for parsing /proc/net/dev added * * Revision 1.4 2004/01/23 07:04:03 reinelt * icons finished! * * Revision 1.3 2004/01/23 04:53:34 reinelt * icon widget added (not finished yet!) * * Revision 1.2 2004/01/22 07:57:45 reinelt * several bugs fixed where segfaulting on layout>display * Crystalfontz driver optimized, 632 display already works * * Revision 1.1 2004/01/21 12:36:19 reinelt * Crystalfontz NextGeneration driver added * */ /* * * exported fuctions: * * struct DRIVER drv_Crystalfontz * */ #include "config.h" #include <stdlib.h> #include <stdio.h> #include <string.h> #include <unistd.h> #include <sys/time.h> #include "debug.h" #include "cfg.h" #include "qprintf.h" #include "thread.h" #include "timer.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" static char Name[] = "Crystalfontz"; static int Model; static int Protocol; static int Payload; /* ring buffer for bytes received from the display */ static unsigned char RingBuffer[256]; static unsigned int RingRPos = 0; static unsigned int RingWPos = 0; /* packet from the display */ struct { unsigned char type; unsigned char code; unsigned char size; unsigned char data[16 + 1]; /* trailing '\0' */ } Packet; /* Line Buffer for 633 displays */ static unsigned char Line[2 * 16]; /* Fan RPM */ static double Fan_RPM[4] = { 0.0, }; /* Temperature sensors */ static double Temperature[32] = { 0.0, }; /* Fixme: GPO's not yet implemented */ /* static int GPO[8]; */ static int GPOS; typedef struct { int type; char *name; int rows; int cols; int gpos; int protocol; int payload; } MODEL; /* Fixme #1: number of gpo's should be verified */ /* Fixme #2: protocol should be verified */ static MODEL Models[] = { {626, "626", 2, 16, 0, 1, 0}, {631, "631", 2, 20, 0, 3, 22}, {632, "632", 2, 16, 0, 1, 0}, {633, "633", 2, 16, 0, 2, 18}, {634, "634", 4, 20, 0, 1, 0}, {635, "635", 4, 20, 0, 3, 22}, {636, "636", 2, 16, 0, 1, 0}, {-1, "Unknown", -1, -1, 0, 0, 0} }; /****************************************/ /*** hardware dependant functions ***/ /****************************************/ /* x^0 + x^5 + x^12 */ #define CRCPOLY 0x8408 static unsigned short CRC(const unsigned char *p, size_t len, unsigned short seed) { int i; while (len--) { seed ^= *p++; for (i = 0; i < 8; i++) seed = (seed >> 1) ^ ((seed & 1) ? CRCPOLY : 0); } return ~seed; } static unsigned char LSB(const unsigned short word) { return word & 0xff; } static unsigned char MSB(const unsigned short word) { return word >> 8; } static unsigned char byte(unsigned int pos) { pos += RingRPos; if (pos >= sizeof(RingBuffer)) pos -= sizeof(RingBuffer); return RingBuffer[pos]; } static void drv_CF_process_packet(void) { switch (Packet.type) { case 0x02: /* async response from display to host */ switch (Packet.code) { case 0x00: /* Key Activity */ debug("Key Activity: %d", Packet.data[0]); break; case 0x01: /* Fan Speed Report */ if (Packet.data[1] == 0xff) { Fan_RPM[Packet.data[0]] = -1.0; } else if (Packet.data[1] < 4) { Fan_RPM[Packet.data[0]] = 0.0; } else { Fan_RPM[Packet.data[0]] = (double) 27692308L *(Packet.data[1] - 3) / (Packet.data[2] + 256 * Packet.data[3]); } break; case 0x02: /* Temperature Sensor Report */ switch (Packet.data[3]) { case 0: error("%s: 1-Wire device #%d: CRC error", Name, Packet.data[0]); break; case 1: case 2: Temperature[Packet.data[0]] = (Packet.data[1] + 256 * Packet.data[2]) / 16.0; break; default: error("%s: 1-Wire device #%d: unknown CRC status %d", Name, Packet.data[0], Packet.data[3]); break; } break; default: /* this should not happen */ error("%s: unexpected response type=0x%02x code=0x%02x size=%d", Packet.type, Packet.code, Packet.size); break; } break; case 0x03: /* error response from display to host */ error("%s: error response type=0x%02x code=0x%02x size=%d", Packet.type, Packet.code, Packet.size); break; default: /* these should not happen: */ /* type 0x00: command from host to display: should never come back */ /* type 0x01: command response from display to host: are processed within send() */ error("%s: unexpected packet type=0x%02x code=0x%02x size=%d", Packet.type, Packet.code, Packet.size); break; } } static int drv_CF_poll(void) { /* read into RingBuffer */ while (1) { char buffer[32]; int num, n; num = drv_generic_serial_poll(buffer, sizeof(buffer)); if (num <= 0) break; /* put result into RingBuffer */ for (n = 0; n < num; n++) { RingBuffer[RingWPos++] = (unsigned char) buffer[n]; if (RingWPos >= sizeof(RingBuffer)) RingWPos = 0; } } /* process RingBuffer */ while (1) { unsigned char buffer[32]; int n, num, size; unsigned short crc; /* packet size */ num = RingWPos - RingRPos; if (num < 0) num += sizeof(RingBuffer); /* minimum packet size=4 */ if (num < 4) return 0; /* valid response types: 01xxxxx 10.. 11.. */ /* therefore: 00xxxxxx is invalid */ if (byte(0) >> 6 == 0) goto GARBAGE; /* command length */ size = byte(1); /* valid command length is 0 to 16 */ if (size > 16) goto GARBAGE; /* all bytes available? */ if (num < size + 4) return 0; /* check CRC */ for (n = 0; n < size + 4; n++) buffer[n] = byte(n); crc = CRC(buffer, size + 2, 0xffff); if (LSB(crc) != buffer[size + 2]) goto GARBAGE; if (MSB(crc) != buffer[size + 3]) goto GARBAGE; /* process packet */ Packet.type = buffer[0] >> 6; Packet.code = buffer[0] & 0x3f; Packet.size = size; memcpy(Packet.data, buffer + 2, size); Packet.data[size] = '\0'; /* trailing zero */ /* increment read pointer */ RingRPos += size + 4; if (RingRPos >= sizeof(RingBuffer)) RingRPos -= sizeof(RingBuffer); /* a packet arrived */ return 1; GARBAGE: debug("dropping garbage byte %02x", byte(0)); RingRPos++; if (RingRPos >= sizeof(RingBuffer)) RingRPos = 0; continue; } /* not reached */ return 0; } static void drv_CF_timer(void __attribute__ ((unused)) * notused) { while (drv_CF_poll()) { drv_CF_process_packet(); } } static void drv_CF_send(const unsigned char cmd, const unsigned char len, const unsigned char *data) { unsigned char buffer[22]; unsigned short crc; struct timeval now, end; if (len > Payload) { error("%s: internal error: packet length %d exceeds payload size %d", Name, len, Payload); return; } buffer[0] = cmd; buffer[1] = len; memcpy(buffer + 2, data, len); crc = CRC(buffer, len + 2, 0xffff); buffer[len + 2] = LSB(crc); buffer[len + 3] = MSB(crc); drv_generic_serial_write((char *) buffer, len + 4); /* wait for acknowledge packet */ gettimeofday(&now, NULL); while (1) { /* delay 1 msec */ usleep(1 * 1000); if (drv_CF_poll()) { if (Packet.type == 0x01 && Packet.code == cmd) { /* this is the ack we're waiting for */ if (0) { gettimeofday(&end, NULL); debug("%s: ACK after %d usec", Name, 1000000 * (end.tv_sec - now.tv_sec) + end.tv_usec - now.tv_usec); } break; } else { /* some other (maybe async) packet, just process it */ drv_CF_process_packet(); } } gettimeofday(&end, NULL); /* don't wait more than 250 msec */ if ((1000000 * (end.tv_sec - now.tv_sec) + end.tv_usec - now.tv_usec) > 250 * 1000) { error("%s: timeout waiting for response to cmd 0x%02x", Name, cmd); break; } } } static void drv_CF_write1(const int row, const int col, const char *data, const int len) { char cmd[3] = "\021xy"; /* set cursor position */ if (row == 0 && col == 0) { drv_generic_serial_write("\001", 1); /* cursor home */ } else { cmd[1] = (char) col; cmd[2] = (char) row; drv_generic_serial_write(cmd, 3); } drv_generic_serial_write(data, len); } static void drv_CF_write2(const int row, const int col, const char *data, const int len) { int l = len; /* limit length */ if (col + l > 16) l = 16 - col; if (l < 0) l = 0; /* sanity check */ if (row >= 2 || col + l > 16) { error("%s: internal error: write outside linebuffer bounds!", Name); return; } memcpy(Line + 16 * row + col, data, l); drv_CF_send(7 + row, 16, (unsigned char *) (Line + 16 * row)); } static void drv_CF_write3(const int row, const int col, const char *data, const int len) { int l = len; unsigned char cmd[23]; /* limit length */ if (col + l > DCOLS) l = DCOLS - col; if (l < 0) l = 0; /* sanity check */ if (row >= DROWS || col + l > DCOLS) { error("%s: internal error: write outside display bounds!", Name); return; } cmd[0] = col; cmd[1] = row; memcpy(cmd + 2, data, l); drv_CF_send(31, l + 2, cmd); } static void drv_CF_defchar1(const int ascii, const unsigned char *matrix) { int i; char cmd[10] = "\031n"; /* set custom char bitmap */ /* user-defineable chars start at 128, but are defined at 0 */ cmd[1] = (char) (ascii - CHAR0); for (i = 0; i < 8; i++) { cmd[i + 2] = matrix[i] & 0x3f; } drv_generic_serial_write(cmd, 10); } static void drv_CF_defchar23(const int ascii, const unsigned char *matrix) { int i; unsigned char buffer[9]; /* user-defineable chars start at 128, but are defined at 0 */ buffer[0] = (char) (ascii - CHAR0); /* clear bit 6 and 7 of the bitmap (blinking) */ for (i = 0; i < 8; i++) { buffer[i + 1] = matrix[i] & 0x3f; } drv_CF_send(9, 9, buffer); } static int drv_CF_contrast(int contrast) { static unsigned char Contrast = 0; char buffer[2]; /* -1 is used to query the current contrast */ if (contrast == -1) return Contrast; if (contrast < 0) contrast = 0; if (contrast > 255) contrast = 255; Contrast = contrast; switch (Protocol) { case 1: /* contrast range 0 to 100 */ if (Contrast > 100) Contrast = 100; buffer[0] = 15; /* Set LCD Contrast */ buffer[1] = Contrast; drv_generic_serial_write(buffer, 2); break; case 2: /* contrast range 0 to 50 */ if (Contrast > 50) Contrast = 50; drv_CF_send(13, 1, &Contrast); break; case 3: /* contrast range 0 to 255 */ drv_CF_send(13, 1, &Contrast); break; } return Contrast; } static int drv_CF_backlight(int backlight) { static unsigned char Backlight = 0; char buffer[2]; /* -1 is used to query the current backlight */ if (backlight == -1) return Backlight; if (backlight < 0) backlight = 0; if (backlight > 100) backlight = 100; Backlight = backlight; switch (Protocol) { case 1: buffer[0] = 14; /* Set LCD Backlight */ buffer[1] = Backlight; drv_generic_serial_write(buffer, 2); break; case 2: case 3: drv_CF_send(14, 1, &Backlight); break; } return Backlight; } static int drv_CF_fan_pwm(int fan, int power) { static unsigned char PWM[4] = { 100, }; /* sanity check */ if (fan < 1 || fan > 4) return -1; /* fan ranges from 1 to 4 */ fan--; /* -1 is used to query the current power */ if (power == -1) return PWM[fan]; if (power < 0) power = 0; if (power > 100) power = 100; PWM[fan] = power; switch (Protocol) { case 2: drv_CF_send(17, 4, PWM); break; } return PWM[fan]; } static int drv_CF_autodetect(void) { int m; /* only autodetect newer displays */ if (Protocol < 2) return -1; /* read display type */ drv_CF_send(1, 0, NULL); /* send() did already wait for response packet */ if (Packet.type == 0x01 && Packet.code == 0x01) { char t[7], c; float h, v; info("%s: display identifies itself as '%s'", Name, Packet.data); if (sscanf((char *) Packet.data, "%6s:h%f,%c%f", t, &h, &c, &v) != 4) { error("%s: error parsing display identification string", Name); return -1; } info("%s: display type '%s', hardware version %3.1f, firmware version %c%3.1f", Name, t, h, c, v); if (strncmp(t, "CFA", 3) == 0) { for (m = 0; Models[m].type != -1; m++) { /* omit the 'CFA' */ if (strcasecmp(Models[m].name, t + 3) == 0) return m; } } error("%s: display type '%s' may be not supported!", Name, t); return -1; } error("%s: display detection failed!", Name); return -1; } static char *drv_CF_print_ROM(void) { static char buffer[17]; snprintf(buffer, sizeof(buffer), "0x%02x%02x%02x%02x%02x%02x%02x%02x", Packet.data[1], Packet.data[2], Packet.data[3], Packet.data[4], Packet.data[5], Packet.data[6], Packet.data[7], Packet.data[8]); return buffer; } static int drv_CF_scan_DOW(unsigned char index) { int i; /* Read DOW Device Information */ drv_CF_send(18, 1, &index); i = 0; while (1) { /* wait 10 msec */ usleep(10 * 1000); /* packet available? */ if (drv_CF_poll()) { /* DOW Device Info */ if (Packet.type == 0x01 && Packet.code == 0x12) { switch (Packet.data[1]) { case 0x00: /* no device found */ return 0; case 0x22: info("%s: 1-Wire device #%d: DS1822 temperature sensor found at %s", Name, Packet.data[0], drv_CF_print_ROM()); return 1; case 0x28: info("%s: 1-Wire device #%d: DS18B20 temperature sensor found at %s", Name, Packet.data[0], drv_CF_print_ROM()); return 1; default: info("%s: 1-Wire device #%d: unknown device found at %s", Name, Packet.data[0], drv_CF_print_ROM()); return 0; } } else { drv_CF_process_packet(); } } /* wait no longer than 300 msec */ if (++i > 30) { error("%s: 1-Wire device #%d detection timed out", Name, index); return -1; } } /* not reached */ return -1; } /* clear display */ static void drv_CF_clear(void) { switch (Protocol) { case 1: drv_generic_serial_write("\014", 1); break; case 2: case 3: drv_CF_send(6, 0, NULL); break; } } /* init sequences for 626, 632, 634, 636 */ static void drv_CF_start_1(void) { drv_generic_serial_write("\014", 1); /* Form Feed (Clear Display) */ drv_generic_serial_write("\004", 1); /* hide cursor */ drv_generic_serial_write("\024", 1); /* scroll off */ drv_generic_serial_write("\030", 1); /* wrap off */ } /* init sequences for 633 */ static void drv_CF_start_2(void) { int i; unsigned long mask; unsigned char buffer[4]; /* Clear Display */ drv_CF_send(6, 0, NULL); /* Set LCD Cursor Style */ buffer[0] = 0; drv_CF_send(12, 1, buffer); /* enable Fan Reporting */ buffer[0] = 15; drv_CF_send(16, 1, buffer); /* Set Fan Power to 100% */ buffer[0] = buffer[1] = buffer[2] = buffer[3] = 100; drv_CF_send(17, 4, buffer); /* Read DOW Device Information */ mask = 0; for (i = 0; i < 32; i++) { if (drv_CF_scan_DOW(i) == 1) { mask |= 1 << i; } } /* enable Temperature Reporting */ buffer[0] = mask & 0xff; buffer[1] = (mask >> 8) & 0xff; buffer[2] = (mask >> 16) & 0xff; buffer[3] = (mask >> 24) & 0xff; drv_CF_send(19, 4, buffer); } /* init sequences for 631 */ static void drv_CF_start_3(void) { unsigned char buffer[1]; /* Clear Display */ drv_CF_send(6, 0, NULL); /* Set LCD Cursor Style */ buffer[0] = 0; drv_CF_send(12, 1, buffer); } static int drv_CF_start(const char *section) { int i; char *model; model = cfg_get(section, "Model", NULL); if (model != NULL && *model != '\0') { for (i = 0; Models[i].type != -1; i++) { if (strcasecmp(Models[i].name, model) == 0) break; } if (Models[i].type == -1) { error("%s: %s.Model '%s' is unknown from %s", Name, section, model, cfg_source()); return -1; } Model = i; Protocol = Models[Model].protocol; info("%s: using model '%s'", Name, Models[Model].name); } else { Model = -1; Protocol = 2; /*auto-detect only newer displays */ info("%s: no '%s.Model' entry from %s, auto-detecting", Name, section, cfg_source()); } /* open serial port */ if (drv_generic_serial_open(section, Name, 0) < 0) return -1; /* Fixme: why such a large delay? */ usleep(350 * 1000); /* display autodetection */ i = drv_CF_autodetect(); if (Model == -1) Model = i; if (Model == -1) { error("%s: auto-detection failed, please specify a '%s.Model' entry in %s", Name, section, cfg_source()); return -1; } if (i != -1 && Model != i) { error("%s: %s.Model '%s' from %s does not match detected model '%s'", Name, section, model, cfg_source(), Models[i].name); return -1; } /* initialize global variables */ DROWS = Models[Model].rows; DCOLS = Models[Model].cols; GPOS = Models[Model].gpos; Protocol = Models[Model].protocol; Payload = Models[Model].payload; switch (Protocol) { case 1: drv_CF_start_1(); break; case 2: /* regularly process display answers */ /* Fixme: make 100msec configurable */ timer_add(drv_CF_timer, NULL, 100, 0); drv_CF_start_2(); /* clear 633 linebuffer */ memset(Line, ' ', sizeof(Line)); break; case 3: /* regularly process display answers */ /* Fixme: make 100msec configurable */ timer_add(drv_CF_timer, NULL, 100, 0); drv_CF_start_3(); break; } /* set contrast */ if (cfg_number(section, "Contrast", 0, 0, 255, &i) > 0) { drv_CF_contrast(i); } /* set backlight */ if (cfg_number(section, "Backlight", 0, 0, 100, &i) > 0) { drv_CF_backlight(i); } return 0; } /****************************************/ /*** plugins ***/ /****************************************/ static void plugin_contrast(RESULT * result, const int argc, RESULT * argv[]) { double contrast; switch (argc) { case 0: contrast = drv_CF_contrast(-1); SetResult(&result, R_NUMBER, &contrast); break; case 1: contrast = drv_CF_contrast(R2N(argv[0])); SetResult(&result, R_NUMBER, &contrast); break; default: error("%s.contrast(): wrong number of parameters", Name); SetResult(&result, R_STRING, ""); } } static void plugin_backlight(RESULT * result, const int argc, RESULT * argv[]) { double backlight; switch (argc) { case 0: backlight = drv_CF_backlight(-1); SetResult(&result, R_NUMBER, &backlight); break; case 1: backlight = drv_CF_backlight(R2N(argv[0])); SetResult(&result, R_NUMBER, &backlight); break; default: error("%s.backlight(): wrong number of parameters"); SetResult(&result, R_STRING, ""); } } static void plugin_fan_pwm(RESULT * result, const int argc, RESULT * argv[]) { double pwm; switch (argc) { case 1: pwm = drv_CF_fan_pwm(R2N(argv[0]), -1); SetResult(&result, R_NUMBER, &pwm); break; case 2: pwm = drv_CF_fan_pwm(R2N(argv[0]), R2N(argv[1])); SetResult(&result, R_NUMBER, &pwm); break; default: error("%s.pwm(): wrong number of parameters"); SetResult(&result, R_STRING, ""); } } /* Fixme: other plugins for Fans, Temperature sensors, ... */ /****************************************/ /*** 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_CF_list(void) { int i; for (i = 0; Models[i].type != -1; i++) { printf("%s ", Models[i].name); } return 0; } /* initialize driver & display */ int drv_CF_init(const char *section, const int quiet) { WIDGET_CLASS wc; int ret; /* start display */ if ((ret = drv_CF_start(section)) != 0) { return ret; } /* display preferences */ XRES = 6; /* pixel width of one char */ YRES = 8; /* pixel height of one char */ CHARS = 8; /* number of user-defineable characters */ /* real worker functions */ switch (Protocol) { case 1: CHAR0 = 128; /* ASCII of first user-defineable char */ GOTO_COST = 3; /* number of bytes a goto command requires */ drv_generic_text_real_write = drv_CF_write1; drv_generic_text_real_defchar = drv_CF_defchar1; break; case 2: CHAR0 = 0; /* ASCII of first user-defineable char */ GOTO_COST = -1; /* there is no goto on 633 */ drv_generic_text_real_write = drv_CF_write2; drv_generic_text_real_defchar = drv_CF_defchar23; break; case 3: CHAR0 = 0; /* ASCII of first user-defineable char */ GOTO_COST = 3; /* number of bytes a goto command requires */ drv_generic_text_real_write = drv_CF_write3; drv_generic_text_real_defchar = drv_CF_defchar23; break; } if (!quiet) { char buffer[40]; qprintf(buffer, sizeof(buffer), "%s %s", Name, Models[Model].name); if (drv_generic_text_greet(buffer, "www.crystalfontz.com")) { sleep(3); drv_CF_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, 255, 32); /* ASCII 32 = blank */ if (Protocol == 2) drv_generic_text_bar_add_segment(255, 255, 255, 255); /* ASCII 255 = block */ /* 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::contrast", -1, plugin_contrast); AddFunction("LCD::backlight", -1, plugin_backlight); if (Protocol == 2) { AddFunction("LCD::fan_pwm", -1, plugin_fan_pwm); } return 0; } /* close driver & display */ int drv_CF_quit(const int quiet) { info("%s: shutting down.", Name); drv_generic_text_quit(); /* clear display */ drv_CF_clear(); /* say goodbye... */ if (!quiet) { drv_generic_text_greet("goodbye!", NULL); } drv_generic_serial_close(); return (0); } DRIVER drv_Crystalfontz = { name:Name, list:drv_CF_list, init:drv_CF_init, quit:drv_CF_quit, };


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