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+ GNU LESSER GENERAL PUBLIC LICENSE
+ Version 2.1, February 1999
+
+ Copyright (C) 1991, 1999 Free Software Foundation, Inc.
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
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+[This is the first released version of the Lesser GPL. It also counts
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+ <signature of Ty Coon>, 1 April 1990
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+
+That's all there is to it!
class="k">static int Model; static int Protocol; // 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; } MODEL; // Fixme #1: number of gpo's should be verified // Fixme #2: protocol should be verified static MODEL Models[] = { { 0x01, "LCD0821", 2, 8, 0, 1 }, { 0x03, "LCD2021", 2, 20, 0, 1 }, { 0x04, "LCD1641", 4, 16, 0, 1 }, { 0x05, "LCD2041", 4, 20, 0, 1 }, { 0x06, "LCD4021", 2, 40, 0, 1 }, { 0x07, "LCD4041", 4, 40, 0, 1 }, { 0x08, "LK202-25", 2, 20, 0, 2 }, { 0x09, "LK204-25", 4, 20, 0, 2 }, { 0x0a, "LK404-55", 4, 40, 0, 2 }, { 0x0b, "VFD2021", 2, 20, 0, 1 }, { 0x0c, "VFD2041", 4, 20, 0, 1 }, { 0x0d, "VFD4021", 2, 40, 0, 1 }, { 0x0e, "VK202-25", 2, 20, 0, 1 }, { 0x0f, "VK204-25", 4, 20, 0, 1 }, { 0x10, "GLC12232", -1, -1, 0, 1 }, { 0x13, "GLC24064", -1, -1, 0, 1 }, { 0x15, "GLK24064-25", -1, -1, 0, 1 }, { 0x22, "GLK12232-25", -1, -1, 0, 1 }, { 0x31, "LK404-AT", 4, 40, 0, 2 }, { 0x32, "VFD1621", 2, 16, 0, 1 }, { 0x33, "LK402-12", 2, 40, 0, 2 }, { 0x34, "LK162-12", 2, 16, 0, 2 }, { 0x35, "LK204-25PC", 4, 20, 0, 2 }, { 0x36, "LK202-24-USB", 2, 20, 0, 2 }, { 0x38, "LK204-24-USB", 4, 20, 0, 2 }, { 0xff, "Unknown", -1, -1, 0, 0 } }; // **************************************** // *** hardware dependant functions *** // **************************************** static void drv_MO_clear (void) { switch (Protocol) { case 1: drv_generic_serial_write ("\014", 1); // Clear Screen break; case 2: drv_generic_serial_write ("\376\130", 2); // Clear Screen break; } } static void drv_MO_write (const int row, const int col, const unsigned char *data, const int len) { char cmd[5]="\376Gyx"; cmd[2]=(char)col+1; cmd[3]=(char)row+1; drv_generic_serial_write(cmd,4); drv_generic_serial_write (data, len); } static void drv_MO_defchar (const int ascii, const unsigned char *matrix) { int i; char cmd[11]="\376N"; cmd[2]=(char)ascii; for (i = 0; i < 8; i++) { cmd[i+3] = matrix[i] & 0x1f; } drv_generic_serial_write (cmd, 11); } static int drv_MO_contrast (int contrast) { static unsigned char Contrast=0; char buffer[4]; // -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; snprintf (buffer, 4, "\376P%c", Contrast); drv_generic_serial_write (buffer, 3); return Contrast; } static int drv_MO_backlight (int backlight) { static unsigned char Backlight=0; char buffer[4]; // -1 is used to query the current backlight if (backlight == -1) return Backlight; if (backlight < 0 ) backlight = 0; if (backlight > 255) backlight = 255; Backlight = backlight; if (backlight<0) { // backlight off snprintf (buffer, 3, "\376F"); drv_generic_serial_write (buffer, 2); } else { // backlight on for n minutes snprintf (buffer, 4, "\376B%c", (int)backlight); drv_generic_serial_write (buffer, 3); } return Backlight; } static int drv_MO_gpo (int num, int val) { static int GPO[6] = { -1, -1, -1, -1, -1, -1 }; char cmd[3]="\376"; if (num < 1) num = 1; if (num > 6) num = 6; // -1 is used to query the current PWM if (val == -1) return GPO[num-1]; if (val < 0) val = 0; if (val > 1) val = 1; GPO[num-1] = val; switch (Protocol) { case 1: if (num == 1) { if (val > 0) { drv_generic_serial_write ("\376W", 2); // GPO on } else { drv_generic_serial_write ("\376V", 2); // GPO off } } else { GPO[num-1] = -1; } break; case 2: if (val > 0) { cmd[1] = 'W'; // GPO on } else { cmd[1] = 'V'; // GPO off } cmd[2] = (char)num; drv_generic_serial_write (cmd, 3); break; } return GPO[num-1]; } static int drv_MO_pwm (int num, int val) { static int PWM[6] = { -1, -1, -1, -1, -1, -1 }; char cmd[4]="\376\300"; if (num < 1) num = 1; if (num > 6) num = 6; // -1 is used to query the current PWM if (val == -1) return PWM[num-1]; if (val < 0) val = 0; if (val > 255) val = 255; PWM[num-1] = val; cmd[2] = (char)num; cmd[3] = (char)val; drv_generic_serial_write (cmd, 4); return val; } static int drv_MO_rpm (int num) { static int RPM[6] = { -1, -1, -1, -1, -1, -1 }; char cmd[3] = "\376\301"; char buffer[7]; if (num < 1) num = 1; if (num > 6) num = 6; cmd[2] = (char)num; drv_generic_serial_write (cmd, 3); usleep(100000); drv_generic_serial_read (buffer, 7); debug ("rpm: buffer[0]=0x%01x", buffer[0]); debug ("rpm: buffer[1]=0x%01x", buffer[1]); debug ("rpm: buffer[2]=0x%01x", buffer[2]); debug ("rpm: buffer[3]=0x%01x", buffer[3]); debug ("rpm: buffer[4]=0x%01x", buffer[4]); debug ("rpm: buffer[5]=0x%01x", buffer[5]); debug ("rpm: buffer[6]=0x%01x", buffer[6]); // Fixme: RPM calculations??? RPM[num-1] = 42; return RPM[num-1]; } static int drv_MO_start (const char *section, const int quiet) { int i; char *model; char buffer[256]; model=cfg_get(section, "Model", NULL); if (model!=NULL && *model!='\0') { 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 { info ("%s: no '%s.Model' entry from %s, auto-dedecting", Name, section, cfg_source()); Model=-1; } if (drv_generic_serial_open(section, Name, 0)<0) return -1; if (Model == -1 || Models[Model].protocol > 1) { // read module type drv_generic_serial_write ("\3767", 2); usleep(1000); if (drv_generic_serial_read (buffer, 1)==1) { for (i=0; Models[i].type!=0xff; i++) { if (Models[i].type == (int)*buffer) break; } info ("%s: display reports model '%s' (type 0x%02x)", Name, Models[i].name, Models[i].type); // auto-dedection if (Model==-1) Model=i; // auto-dedection matches specified model? if (Models[i].type!=0xff && Model!=i) { error ("%s: %s.Model '%s' from %s does not match dedected Model '%s'", Name, section, model, cfg_source(), Models[i].name); return -1; } } else { info ("%s: display detection failed.", Name); } } // initialize global variables DROWS = Models[Model].rows; DCOLS = Models[Model].cols; GPOS = Models[Model].gpos; Protocol = Models[Model].protocol; if (Protocol > 1) { // read serial number drv_generic_serial_write ("\3765", 2); usleep(100000); if (drv_generic_serial_read (buffer, 2)==2) { info ("%s: display reports serial number 0x%x", Name, *(short*)buffer); } // read version number drv_generic_serial_write ("\3766", 2); usleep(100000); if (drv_generic_serial_read (buffer, 1)==1) { info ("%s: display reports firmware version 0x%x", Name, *buffer); } } drv_MO_clear(); drv_generic_serial_write ("\376B", 3); // backlight on drv_generic_serial_write ("\376K", 2); // cursor off drv_generic_serial_write ("\376T", 2); // blink off drv_generic_serial_write ("\376D", 2); // line wrapping off drv_generic_serial_write ("\376R", 2); // auto scroll off // set contrast if (cfg_number(section, "Contrast", 0, 0, 255, &i)>0) { drv_MO_contrast(i); } // set backlight if (cfg_number(section, "Backlight", 0, 0, 255, &i)>0) { drv_MO_backlight(i); } if (!quiet) { if (drv_generic_text_greet (Models[Model].name, "MatrixOrbital")) { sleep (3); drv_MO_clear(); } } return 0; } // **************************************** // *** plugins *** // **************************************** static void plugin_contrast (RESULT *result, const int argc, RESULT *argv[]) { double contrast; switch (argc) { case 0: contrast = drv_MO_contrast(-1); SetResult(&result, R_NUMBER, &contrast); break; case 1: contrast = drv_MO_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_MO_backlight(-1); SetResult(&result, R_NUMBER, &backlight); break; case 1: backlight = drv_MO_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_gpo (RESULT *result, const int argc, RESULT *argv[]) { double gpo; switch (argc) { case 1: gpo = drv_MO_gpo(R2N(argv[0]), -1); SetResult(&result, R_NUMBER, &gpo); break; case 2: gpo = drv_MO_gpo(R2N(argv[0]), R2N(argv[1])); SetResult(&result, R_NUMBER, &gpo); break; default: error ("%s:gpo(): wrong number of parameters"); SetResult(&result, R_STRING, ""); } } static void plugin_pwm (RESULT *result, const int argc, RESULT *argv[]) { double pwm; switch (argc) { case 1: pwm = drv_MO_pwm(R2N(argv[0]), -1); SetResult(&result, R_NUMBER, &pwm); break; case 2: pwm = drv_MO_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, ""); } } static void plugin_rpm (RESULT *result, RESULT *arg1) { double rpm; rpm = drv_MO_rpm(R2N(arg1)); SetResult(&result, R_NUMBER, &rpm); } // **************************************** // *** 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_MO_list (void) { int i; for (i=0; Models[i].type!=0xff; i++) { printf ("%s ", Models[i].name); } return 0; } // initialize driver & display int drv_MO_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=0; // ASCII of first user-defineable char GOTO_COST=4; // number of bytes a goto command requires // real worker functions drv_generic_text_real_write = drv_MO_write; drv_generic_text_real_defchar = drv_MO_defchar; // start display if ((ret=drv_MO_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 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); AddFunction ("LCD::gpo", -1, plugin_gpo); AddFunction ("LCD::pwm", -1, plugin_pwm); AddFunction ("LCD::rpm", 1, plugin_rpm); return 0; } // close driver & display int drv_MO_quit (const int quiet) { info("%s: shutting down.", Name); drv_generic_text_quit(); // clear display drv_MO_clear(); // say goodbye... if (!quiet) { drv_generic_text_greet ("goodbye!", NULL); } drv_generic_serial_close(); return (0); } DRIVER drv_MatrixOrbital = { name: Name, list: drv_MO_list, init: drv_MO_init, quit: drv_MO_quit, };