/* * This is the LCDproc driver for CrystalFontz LCD using Packet protocol. * It support the CrystalFontz 633 USB/Serial, the 631 USB and the 635 USB * (get yours from http://crystalfontz.com) * * Applicable Data Sheets * http://www.crystalfontz.com/products/631/CFA-631_v1.0.pdf * http://www.crystalfontz.com/products/633/CFA_633_0_6.PDF * http://www.crystalfontz.com/products/635/CFA_635_1_0.pdf * * Copyright (C) 2002 David GLAUDE * Portions Copyright (C) 2005 Peter Marschall * Portions Copyright (C) 2005 Nicolas Croiset * * This program 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 of the License, or * any later version. * * This program 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 */ /* * Driver status * 04/04/2002: Working driver * 05/06/2002: Reading of return value * 02/09/2002: KeyPad handling and return string * 03/09/2002: New icon incorporated * 27/01/2003: Adapted for CFontz 631 * 16/05/2005: Adapted for CFontz 635 * * THINGS NOT DONE: * + No checking if right hardware is connected (firmware/hardware) * + No support for multiple instance (require private structure) * + No cache of custom char usage (like in MtxOrb) * * THINGS DONE: * + Stopping the live reporting (of temperature) * + Stopping the reporting of temp and fan (is it necessary after reboot) * + Use of library for hbar and vbar (good but library could be better) * + Support for keypad (Using a KeyRing) * + BigNum (for CF635 only: it is a 4-line display) * + Output support (LED control on a CF635 only) * * THINGS TO DO: * + Make the caching at least for heartbeat icon * + Create and use the library (for custom char handling) * */ #include #include #include #include #include #include #include #include #ifdef HAVE_CONFIG_H # include "config.h" #endif #include "lcd.h" #include "CFontzPacket.h" #include "CFontz633io.h" #include "report.h" #include "lcd_lib.h" #include "CFontz-charmap.h" #include "adv_bignum.h" #define CFP_KEY_UP 1 #define CFP_KEY_DOWN 2 #define CFP_KEY_LEFT 3 #define CFP_KEY_RIGHT 4 #define CFP_KEY_ENTER 5 #define CFP_KEY_ESCAPE 6 #define CFP_KEY_UP_RELEASE 7 #define CFP_KEY_DOWN_RELEASE 8 #define CFP_KEY_LEFT_RELEASE 9 #define CFP_KEY_RIGHT_RELEASE 10 #define CFP_KEY_ENTER_RELEASE 11 #define CFP_KEY_ESCAPE_RELEASE 12 #define CFP_KEY_UL_PRESS 13 #define CFP_KEY_UR_PRESS 14 #define CFP_KEY_LL_PRESS 15 #define CFP_KEY_LR_PRESS 16 #define CFP_KEY_UL_RELEASE 17 #define CFP_KEY_UR_RELEASE 18 #define CFP_KEY_LL_RELEASE 19 #define CFP_KEY_LR_RELEASE 20 #define CELLWIDTH DEFAULT_CELL_WIDTH #define CELLHEIGHT DEFAULT_CELL_HEIGHT /* LEDs dispatch */ #define CF635_NUM_LEDs 8 /* Constants for userdefchar_mode */ #define NUM_CCs 8 /* max. number of custom characters */ typedef enum { standard, /* only char 0 is used for heartbeat */ vbar, /* vertical bars */ hbar, /* horizontal bars */ custom, /* custom settings */ bignum, /* big numbers */ bigchar /* big characters */ } CGmode; typedef struct cgram_cache { char cache[DEFAULT_CELL_HEIGHT]; int clean; } CGram; typedef struct driver_private_data { char device[200]; int fd; int model; int newfirmware; int usb; int speed; /* dimensions */ int width, height; int cellwidth, cellheight; /* framebuffer and buffer for old LCD contents */ unsigned char *framebuf; unsigned char *backingstore; /* defineable characters */ CGram cc[NUM_CCs]; CGmode ccmode; int contrast; int brightness; int offbrightness; unsigned int LEDstate; char info[255]; } PrivateData; /* Vars for the server core */ MODULE_EXPORT char *api_version = API_VERSION; MODULE_EXPORT int stay_in_foreground = 0; MODULE_EXPORT int supports_multiple = 0; MODULE_EXPORT char *symbol_prefix = "CFontzPacket_"; /* Internal functions */ /* static void CFontzPacket_linewrap (int on); */ /* static void CFontzPacket_autoscroll (int on); */ static void CFontzPacket_hidecursor (Driver *drvthis); static void CFontzPacket_reboot (Driver *drvthis); static void CFontzPacket_no_live_report (Driver *drvthis); static void CFontzPacket_hardware_clear (Driver *drvthis); /* * Opens com port and sets baud correctly... */ MODULE_EXPORT int CFontzPacket_init (Driver *drvthis) { struct termios portset; int tmp, w, h; int reboot = 0; char size[200] = DEFAULT_SIZE; int default_speed = DEFAULT_SPEED; char *default_size = DEFAULT_SIZE; PrivateData *p; /* Allocate and store private data */ p = (PrivateData *) calloc(1, sizeof(PrivateData)); if (p == NULL) return -1; if (drvthis->store_private_ptr(drvthis, p)) return -1; /* Initialize the PrivateData structure */ p->fd = -1; p->cellwidth = DEFAULT_CELL_WIDTH; p->cellheight = DEFAULT_CELL_HEIGHT; p->ccmode = standard; p->LEDstate = 0xFFFF; debug(RPT_INFO, "%s(%p)", __FUNCTION__, drvthis); EmptyKeyRing(&keyring); EmptyReceiveBuffer(&receivebuffer); /* Read config file */ /* Which model is it (CF633, CF631 or CF635)? */ tmp = drvthis->config_get_int(drvthis->name, "Model", 0, 633); debug(RPT_INFO, "%s: Model (in config) is '%d'", __FUNCTION__, tmp); if ((tmp != 631) && (tmp != 633) && (tmp != 635)) { tmp = 633; report(RPT_WARNING, "%s: Model must be 631, 633 or 635; using default %d", drvthis->name, tmp); } p->model = tmp; /* Which device should be used */ strncpy(p->device, drvthis->config_get_string(drvthis->name, "Device", 0, DEFAULT_DEVICE), sizeof(p->device)); p->device[sizeof(p->device)-1] = '\0'; report(RPT_INFO, "%s: using Device %s", drvthis->name, p->device); /* Which size */ if (p->model == 631) { default_size = DEFAULT_SIZE_CF631; default_speed = DEFAULT_SPEED_CF631; } else if (p->model == 633) { default_size = DEFAULT_SIZE_CF633; default_speed = DEFAULT_SPEED_CF633; } else if (p->model == 635) { default_size = DEFAULT_SIZE_CF635; default_speed = DEFAULT_SPEED_CF635; } strncpy(size, drvthis->config_get_string(drvthis->name, "Size", 0, default_size), sizeof(size)); size[sizeof(size)-1] = '\0'; debug(RPT_INFO, "%s: Size (in config) is '%s'", __FUNCTION__, size); if ((sscanf(size, "%dx%d", &w, &h) != 2) || (w <= 0) || (w > LCD_MAX_WIDTH) || (h <= 0) || (h > LCD_MAX_HEIGHT)) { report(RPT_WARNING, "%s: cannot parse Size: %s; using default %s", drvthis->name, size, default_size); sscanf(default_size, "%dx%d", &w, &h); } p->width = w; p->height = h; debug(RPT_INFO, "%s: Size used: %dx%d", __FUNCTION__, p->width, p->height); /* Which contrast */ tmp = drvthis->config_get_int(drvthis->name, "Contrast", 0, DEFAULT_CONTRAST); debug(RPT_INFO, "%s: Contrast (in config) is '%d'", __FUNCTION__, tmp); if ((tmp < 0) || (tmp > 1000)) { report(RPT_WARNING, "%s: Contrast must be between 0 and 1000; using default %d", drvthis->name, DEFAULT_CONTRAST); tmp = DEFAULT_CONTRAST; } p->contrast = tmp; /* Which backlight brightness */ tmp = drvthis->config_get_int(drvthis->name, "Brightness", 0, DEFAULT_BRIGHTNESS); debug(RPT_INFO, "%s: Brightness (in config) is '%d'", __FUNCTION__, tmp); if ((tmp < 0) || (tmp > 1000)) { report(RPT_WARNING, "%s: Brightness must be between 0 and 1000; using default %d", drvthis->name, DEFAULT_BRIGHTNESS); tmp = DEFAULT_BRIGHTNESS; } p->brightness = tmp; /* Which backlight-off "brightness" */ tmp = drvthis->config_get_int(drvthis->name, "OffBrightness", 0, DEFAULT_OFFBRIGHTNESS); debug(RPT_INFO, "%s: OffBrightness (in config) is '%d'", __FUNCTION__, tmp); if ((tmp < 0) || (tmp > 1000)) { report(RPT_WARNING, "%s: OffBrightness must be between 0 and 1000; using default %d", drvthis->name, DEFAULT_OFFBRIGHTNESS); tmp = DEFAULT_OFFBRIGHTNESS; } p->offbrightness = tmp; /* Which speed ? CF633 support 19200 only, CF631 & CF635 USB use 115200. */ tmp = drvthis->config_get_int(drvthis->name, "Speed", 0, default_speed); debug(RPT_INFO, "%s: Speed (in config) is '%d'", __FUNCTION__, tmp); if ((tmp != 19200) && (tmp != 115200)) { report(RPT_WARNING, "%s: Speed must be 19200 or 11500; using default %d", drvthis->name, default_speed); tmp = default_speed; } p->speed = (tmp == 19200) ? B19200 : B115200; /* New firmware version? * I will try to behave differently for firmware 0.6 or above. * Currently this is not in use. */ p->newfirmware = drvthis->config_get_bool(drvthis->name, "NewFirmware", 0, 0); /* Reboot display? */ reboot = drvthis->config_get_bool(drvthis->name, "Reboot", 0, 0); /* Am I USB or not? */ p->usb = drvthis->config_get_bool(drvthis->name, "USB", 0, 0); if (p->usb) report(RPT_INFO, "%s: USB is indicated (in config)", drvthis->name); /* Set up io port correctly, and open it... */ debug(RPT_DEBUG, "%s: Opening device: %s", __FUNCTION__, p->device); p->fd = open(p->device, (p->usb) ? (O_RDWR | O_NOCTTY) : (O_RDWR | O_NOCTTY | O_NDELAY)); if (p->fd == -1) { report(RPT_ERR, "%s: open(%s) failed (%s)", drvthis->name, p->device, strerror(errno)); return -1; } tcgetattr (p->fd, &portset); /* We use RAW mode */ if (p->usb) { // The USB way portset.c_iflag &= ~( IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL | IXON ); portset.c_oflag &= ~OPOST; portset.c_lflag &= ~( ECHO | ECHONL | ICANON | ISIG | IEXTEN ); portset.c_cflag &= ~( CSIZE | PARENB | CRTSCTS ); portset.c_cflag |= CS8 | CREAD | CLOCAL; portset.c_cc[VMIN] = 0; portset.c_cc[VTIME] = 0; } else { #ifdef HAVE_CFMAKERAW /* The easy way */ cfmakeraw(&portset); #else /* The hard way */ portset.c_iflag &= ~( IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL | IXON ); portset.c_oflag &= ~OPOST; portset.c_lflag &= ~( ECHO | ECHONL | ICANON | ISIG | IEXTEN ); portset.c_cflag &= ~( CSIZE | PARENB | CRTSCTS ); portset.c_cflag |= CS8 | CREAD | CLOCAL; #endif } /* Set port speed */ cfsetospeed (&portset, p->speed); cfsetispeed (&portset, B0); /* Do it... */ tcsetattr (p->fd, TCSANOW, &portset); /* make sure the frame buffer is there... */ p->framebuf = (unsigned char *) malloc(p->width * p->height); if (p->framebuf == NULL) { report(RPT_ERR, "%s: unable to create framebuffer", drvthis->name); return -1; } memset(p->framebuf, ' ', p->width * p->height); /* make sure the framebuffer backing store is there... */ p->backingstore = (unsigned char *) malloc(p->width * p->height); if (p->backingstore == NULL) { report(RPT_ERR, "%s: unable to create framebuffer backing store", drvthis->name); return -1; } memset(p->backingstore, ' ', p->width * p->height); /* Set display-specific stuff.. */ if (reboot) { report(RPT_INFO, "%s: rebooting LCD...", drvthis->name); CFontzPacket_reboot(drvthis); reboot = 0; debug(RPT_DEBUG, "%s: reboot done", __FUNCTION__); } CFontzPacket_hidecursor(drvthis); CFontzPacket_set_contrast(drvthis, p->contrast); CFontzPacket_no_live_report(drvthis); CFontzPacket_hardware_clear(drvthis); /* turn LEDs off on a CF635 */ CFontzPacket_output(drvthis, 0); report(RPT_DEBUG, "%s: init() done", drvthis->name); return 0; } /* * Clean-up */ MODULE_EXPORT void CFontzPacket_close (Driver *drvthis) { PrivateData *p = drvthis->private_data; if (p != NULL) { if (p->fd >= 0) close(p->fd); if (p->framebuf) free(p->framebuf); p->framebuf = NULL; if (p->backingstore) free(p->backingstore); p->backingstore = NULL; free(p); } drvthis->store_private_ptr(drvthis, NULL); } /* * Returns the display width in characters */ MODULE_EXPORT int CFontzPacket_width (Driver *drvthis) { PrivateData *p = drvthis->private_data; return p->width; } /* * Returns the display height in characters */ MODULE_EXPORT int CFontzPacket_height (Driver *drvthis) { PrivateData *p = drvthis->private_data; return p->height; } /* * Returns the width of a character in pixels */ MODULE_EXPORT int CFontzPacket_cellwidth (Driver *drvthis) { PrivateData *p = drvthis->private_data; return p->cellwidth; } /* * Returns the height of a character in pixels */ MODULE_EXPORT int CFontzPacket_cellheight (Driver *drvthis) { PrivateData *p = drvthis->private_data; return p->cellheight; } /* * Flushes all output to the lcd... */ MODULE_EXPORT void CFontzPacket_flush (Driver *drvthis) { PrivateData *p = drvthis->private_data; int i,j; if (p->model == 633) { /* * For CF633 we don't use delta update yet. * The protocol only permit update of full or partial line starting from pos 0. */ unsigned char *xp = p->framebuf; unsigned char *xq = p->backingstore; for (i = 0; i < p->width; i++) { if (*xp++ != *xq++) { send_bytes_message(p->fd, CF633_Set_LCD_Contents_Line_One, 16, p->framebuf); memcpy(p->backingstore, p->framebuf, p->width); break; } } xp = p->framebuf + p->width; xq = p->backingstore + p->width; for (i = 0; i < p->width; i++) { if (*xp++ != *xq++) { send_bytes_message(p->fd, CF633_Set_LCD_Contents_Line_Two, 16, p->framebuf + p->width); memcpy(p->backingstore + p->width, p->framebuf + p->width, p->width); break; } } } else { /* (p->model != 633) */ /* * CF631 / CF635 protocol is more flexible and we can do real delta update. */ for (i = 0; i < p->height; i++) { // set pointers to start of the line in frame buffer & backing store unsigned char *sp = p->framebuf + (i * p->width); unsigned char *sq = p->backingstore + (i * p->width); debug(RPT_DEBUG, "Framebuf: '%.*s'", p->width, sp); debug(RPT_DEBUG, "Backingstore: '%.*s'", p->width, sq); #if defined(CFONTZPACKET_OLD_OPTIMATION) /* Strategy: * - one update command per chunk of modified data */ for (j = 0; j < p->width; ) { // skip over identical portions for ( ; *sp == *sq && j < p->width; sp++, sq++, j++) ; // deal with the differences if (j < p->width) { unsigned char out[23]; int diff_length; int first_diff = j; // get length of differing portions for ( ; *sp != *sq && j < p->width; sp++, sq++, j++) ; // send the difference to the screen diff_length = j - first_diff; out[0] = first_diff; // column out[1] = i; // line debug(RPT_DEBUG, "%s: l=%d c=%d count=%d string='%.*s'", __FUNCTION__, out[0], out[1], diff_length, diff_length, &p->framebuf[first_diff + (i * p->width)]); memcpy(&out[2], &p->framebuf[first_diff + (i * p->width)], diff_length); send_bytes_message(p->fd, CF633_Send_Data_to_LCD, diff_length + 2, out); } } // j < p->width #else /* Strategy: * - not more than one update command per line * - leave out leading and trailing parts that are identical */ // set pointers to end of the line in frame buffer & backing store unsigned char *ep = sp + (p->width - 1); unsigned char *eq = sq + (p->width - 1); int length = 0; // skip over leading identical portions of the line for (j = 0; (sp <= ep) && (*sp == *sq); sp++, sq++, j++) ; // skip over trailing identical portions of the line for (length = p->width - j; (length > 0) && (*ep == *eq); ep--, eq--, length--) ; /* there are differences, ... */ if (length > 0) { unsigned char out[23]; /* ... send then to the LCD */ out[0] = j; // column out[1] = i; // line debug(RPT_DEBUG, "%s: l=%d c=%d count=%d string='%.*s'", __FUNCTION__, out[0], out[1], length, length, sp); memcpy(&out[2], sp, length); send_bytes_message(p->fd, CF633_Send_Data_to_LCD, length + 2, out); } #endif } // i < p->height memcpy(p->backingstore, p->framebuf, p->width * p->height); } } /* * Return one char from the KeyRing */ MODULE_EXPORT const char * CFontzPacket_get_key (Driver *drvthis) { //PrivateData *p = drvthis->private_data; unsigned char key = GetKeyFromKeyRing(&keyring); switch (key) { case CFP_KEY_LEFT: return "Left"; break; case CFP_KEY_UP: return "Up"; break; case CFP_KEY_DOWN: return "Down"; break; case CFP_KEY_RIGHT: return "Right"; break; case CFP_KEY_ENTER: return "Enter"; break; case CFP_KEY_ESCAPE: return "Escape"; break; case CFP_KEY_UL_PRESS: return "Up"; break; case CFP_KEY_UR_PRESS: return "Enter"; break; case CFP_KEY_LL_PRESS: return "Down"; break; case CFP_KEY_LR_PRESS: return "Escape"; break; case CFP_KEY_UP_RELEASE: case CFP_KEY_DOWN_RELEASE: case CFP_KEY_LEFT_RELEASE: case CFP_KEY_RIGHT_RELEASE: case CFP_KEY_ENTER_RELEASE: case CFP_KEY_ESCAPE_RELEASE: case CFP_KEY_UL_RELEASE: case CFP_KEY_UR_RELEASE: case CFP_KEY_LL_RELEASE: case CFP_KEY_LR_RELEASE: // report(RPT_INFO, "%s: Ignoring key release 0x%02X", drvthis->name, key); return NULL; break; default: if (key != '\0') report(RPT_INFO, "%s: Untreated key 0x%02X", drvthis->name, key); return NULL; break; } return NULL; } /* * Prints a character on the lcd display, at position (x,y). * The upper-left is (1,1), and the lower right should be (16,2). */ MODULE_EXPORT void CFontzPacket_chr (Driver *drvthis, int x, int y, char c) { PrivateData *p = drvthis->private_data; y--; x--; if ((x >= 0) && (y >= 0) && (x < p->width) && (y < p->height)) p->framebuf[(y * p->width) + x] = (p->model == 633) ? c : CFontz_charmap[(unsigned) c]; } /* * Prints a character on the lcd display, at position (x,y). * The upper-left is (1,1), and the lower right should be (16,2). */ static void CFontzPacket_raw_chr (Driver *drvthis, int x, int y, unsigned char c) { PrivateData *p = drvthis->private_data; y--; x--; if ((x >= 0) && (y >= 0) && (x < p->width) && (y < p->height)) p->framebuf[(y * p->width) + x] = c; } /* * Returns current contrast (in promille) * This is only the locally stored contrast, the contrast value * cannot be retrieved from the LCD. */ MODULE_EXPORT int CFontzPacket_get_contrast (Driver *drvthis) { PrivateData *p = drvthis->private_data; return p->contrast; } /* * Changes screen contrast (in promille) */ MODULE_EXPORT void CFontzPacket_set_contrast (Driver *drvthis, int promille) { PrivateData *p = drvthis->private_data; int hardware_contrast; /* Check it */ if (promille < 0 || promille > 1000) return; /* store the software value since there is not get */ p->contrast = promille; /* map range [0, 1000] to a range that the hardware understands */ /* on CF633: [0, 50], on CF631 & CF635: [0, 255] */ hardware_contrast = (p->model == 633) ? (p->contrast / 20) : ((p->contrast * 255) / 1000); send_onebyte_message(p->fd, CF633_Set_LCD_Contrast, hardware_contrast); } /* * Retrieves brightness (in promille) */ MODULE_EXPORT int CFontzPacket_get_brightness(Driver *drvthis, int state) { PrivateData *p = drvthis->private_data; return (state == BACKLIGHT_ON) ? p->brightness : p->offbrightness; } /* * Sets on/off brightness (in promille) */ MODULE_EXPORT void CFontzPacket_set_brightness(Driver *drvthis, int state, int promille) { PrivateData *p = drvthis->private_data; /* Check it */ if (promille < 0 || promille > 1000) return; /* store the software value since there is not get */ if (state == BACKLIGHT_ON) { p->brightness = promille; //CFontzPacket_backlight(drvthis, BACKLIGHT_ON); } else { p->offbrightness = promille; //CFontzPacket_backlight(drvthis, BACKLIGHT_OFF); } } /* * Sets the backlight on or off. * The hardware support any value between 0 and 100. */ MODULE_EXPORT void CFontzPacket_backlight (Driver *drvthis, int on) { PrivateData *p = drvthis->private_data; int hardware_value = (on == BACKLIGHT_ON) ? p->brightness : p->offbrightness; /* map range [0, 1000] -> [0, 100] that the hardware understands */ hardware_value /= 10; send_onebyte_message(p->fd, CF633_Set_LCD_And_Keypad_Backlight, hardware_value); } /* * Get rid of the blinking cursor */ static void CFontzPacket_hidecursor (Driver *drvthis) { PrivateData *p = drvthis->private_data; send_onebyte_message(p->fd, CF633_Set_LCD_Cursor_Style, 0); } /* * Stop live reporting of temperature. */ static void CFontzPacket_no_live_report (Driver *drvthis) { PrivateData *p = drvthis->private_data; unsigned char out[2] = { 0, 0 }; if (p->model == 633) { for (out[0] = 0; out[0] < 8; out[0]++) send_bytes_message(p->fd, CF633_Set_Up_Live_Fan_or_Temperature_Display, 2, out); } } /* * Stop the reporting of any fan. */ static void CFontzPacket_no_fan_report (Driver *drvthis) { PrivateData *p = drvthis->private_data; if (p->model == 633) send_onebyte_message(p->fd, CF633_Set_Up_Fan_Reporting, 0); } /* * Stop the reporting of any temperature. */ static void CFontzPacket_no_temp_report (Driver *drvthis) { PrivateData *p = drvthis->private_data; unsigned char out[4] = { 0, 0, 0, 0 }; if (p->model == 633) send_bytes_message(p->fd, CF633_Set_Up_Temperature_Reporting, 4, out); } /* * Reset the display bios */ static void CFontzPacket_reboot (Driver *drvthis) { PrivateData *p = drvthis->private_data; unsigned char out[3] = { 8, 18, 99 }; send_bytes_message(p->fd, CF633_Reboot, 3, out); sleep(2); } /* * Draws a vertical bar... */ MODULE_EXPORT void CFontzPacket_vbar (Driver *drvthis, int x, int y, int len, int promille, int options) { /* x and y are the start position of the bar. * The bar by default grows in the 'up' direction * (other direction not yet implemented). * len is the number of characters that the bar is long at 100% * promille is the number of promilles (0..1000) that the bar should be filled. */ PrivateData *p = drvthis->private_data; if (p->ccmode != vbar) { unsigned char vBar[p->cellheight]; int i; if (p->ccmode != standard) { /* Not supported(yet) */ report(RPT_WARNING, "%s: vbar: cannot combine two modes using user defined characters", drvthis->name); return; } p->ccmode = vbar; memset(vBar, 0x00, sizeof(vBar)); for (i = 1; i < p->cellheight; i++) { // add pixel line per pixel line ... // NOTE: cellwidth != bar width: 0x1F = 0xFF & ((1 << (p->cellwidth - 1)) - 1) vBar[p->cellheight - i] = 0x1F; CFontzPacket_set_char(drvthis, i, vBar); } } lib_vbar_static(drvthis, x, y, len, promille, options, p->cellheight, 0); } /* * Draws a horizontal bar to the right. */ MODULE_EXPORT void CFontzPacket_hbar (Driver *drvthis, int x, int y, int len, int promille, int options) { /* x and y are the start position of the bar. * The bar by default grows in the 'right' direction * (other direction not yet implemented). * len is the number of characters that the bar is long at 100% * promille is the number of promilles (0..1000) that the bar should be filled. */ PrivateData *p = drvthis->private_data; if (p->ccmode != hbar) { unsigned char hBar[p->cellheight]; int i; if (p->ccmode != standard) { /* Not supported(yet) */ report(RPT_WARNING, "%s: hbar: cannot combine two modes using user defined characters", drvthis->name); return; } p->ccmode = hbar; memset(hBar, 0x00, sizeof(hBar)); for (i = 1; i <= p->cellwidth; i++) { // fill pixel columns from left to right. memset(hBar, 0xFF & ~((1 << (p->cellwidth - i)) - 1), sizeof(hBar)-1); CFontzPacket_set_char(drvthis, i, hBar); } } lib_hbar_static(drvthis, x, y, len, promille, options, p->cellwidth, 0); } /* * Writes a big number. */ MODULE_EXPORT void CFontzPacket_num(Driver *drvthis, int x, int num) { PrivateData *p = drvthis->private_data; int do_init = 0; if ((num < 0) || (num > 10)) return; if (p->ccmode != bignum) { if (p->ccmode != standard) { /* Not supported (yet) */ report(RPT_WARNING, "%s: num: cannot combine two modes using user defined characters", drvthis->name); return; } p->ccmode = bignum; do_init = 1; } // Lib_adv_bignum does everything needed to show the bignumbers. lib_adv_bignum(drvthis, x, num, do_init, NUM_CCs); } /* * Gets number of custom chars (always NUM_CCs) */ MODULE_EXPORT int CFontzPacket_get_free_chars (Driver *drvthis) { //PrivateData *p = drvthis->private_data; return NUM_CCs; } /* * Sets a custom character from 0 - (NUM_CCs-1) * * For input, values > 0 mean "on" and values <= 0 are "off". * * The input is just an array of characters... */ MODULE_EXPORT void CFontzPacket_set_char (Driver *drvthis, int n, unsigned char *dat) { PrivateData *p = drvthis->private_data; unsigned char out[9]; unsigned char mask = (1 << p->cellwidth) - 1; int row; if ((n < 0) || (n >= NUM_CCs)) return; if (!dat) return; out[0] = n; /* Custom char to define. xxx */ for (row = 0; row < p->cellheight; row++) { out[row+1] = dat[row] & mask; } send_bytes_message(p->fd, CF633_Set_LCD_Special_Character_Data, 9, out); } /* * Places an icon on screen */ MODULE_EXPORT int CFontzPacket_icon (Driver *drvthis, int x, int y, int icon) { PrivateData *p = drvthis->private_data; static unsigned char heart_open[] = { b__XXXXX, b__X_X_X, b_______, b_______, b_______, b__X___X, b__XX_XX, b__XXXXX }; static unsigned char heart_filled[] = { b__XXXXX, b__X_X_X, b___X_X_, b___XXX_, b___XXX_, b__X_X_X, b__XX_XX, b__XXXXX }; static unsigned char arrow_up[] = { b____X__, b___XXX_, b__X_X_X, b____X__, b____X__, b____X__, b____X__, b_______ }; static unsigned char arrow_down[] = { b____X__, b____X__, b____X__, b____X__, b__X_X_X, b___XXX_, b____X__, b_______ }; /* static unsigned char arrow_left[] = { b_______, b____X__, b___X___, b__XXXXX, b___X___, b____X__, b_______, b_______ }; static unsigned char arrow_right[] = { b_______, b____X__, b_____X_, b__XXXXX, b_____X_, b____X__, b_______, b_______ }; */ static unsigned char checkbox_off[] = { b_______, b_______, b__XXXXX, b__X___X, b__X___X, b__X___X, b__XXXXX, b_______ }; static unsigned char checkbox_on[] = { b____X__, b____X__, b__XXX_X, b__X_XX_, b__X_X_X, b__X___X, b__XXXXX, b_______ }; static unsigned char checkbox_gray[] = { b_______, b_______, b__XXXXX, b__X_X_X, b__XX_XX, b__X_X_X, b__XXXXX, b_______ }; /* static unsigned char selector_left[] = { b___X___, b___XX__, b___XXX_, b___XXXX, b___XXX_, b___XX__, b___X___, b_______ }; static unsigned char selector_right[] = { b_____X_, b____XX_, b___XXX_, b__XXXX_, b___XXX_, b____XX_, b_____X_, b_______ }; static unsigned char ellipsis[] = { b_______, b_______, b_______, b_______, b_______, b_______, b__X_X_X, b_______ }; static unsigned char block_filled[] = { b__XXXXX, b__XXXXX, b__XXXXX, b__XXXXX, b__XXXXX, b__XXXXX, b__XXXXX, b__XXXXX }; */ /* Yes we know, this is a VERY BAD implementation :-) */ switch (icon) { case ICON_BLOCK_FILLED: if (p->model == 633) CFontzPacket_chr(drvthis, x, y, 255); else CFontzPacket_raw_chr(drvthis, x, y, 31); break; case ICON_HEART_FILLED: CFontzPacket_set_char(drvthis, 0, heart_filled); CFontzPacket_chr(drvthis, x, y, 0); break; case ICON_HEART_OPEN: CFontzPacket_set_char(drvthis, 0, heart_open); CFontzPacket_chr(drvthis, x, y, 0); break; case ICON_ARROW_UP: if (p->model == 633) { CFontzPacket_set_char(drvthis, 1, arrow_up); CFontzPacket_chr(drvthis, x, y, 1); } else CFontzPacket_raw_chr(drvthis, x, y, 0xDE); break; case ICON_ARROW_DOWN: if (p->model == 633) { CFontzPacket_set_char(drvthis, 2, arrow_down); CFontzPacket_chr(drvthis, x, y, 2); } else CFontzPacket_raw_chr(drvthis, x, y, 0xE0); break; case ICON_ARROW_LEFT: if (p->model == 633) CFontzPacket_raw_chr(drvthis, x, y, 0x7F); else CFontzPacket_raw_chr(drvthis, x, y, 0xE1); break; case ICON_ARROW_RIGHT: if (p->model == 633) CFontzPacket_raw_chr(drvthis, x, y, 0x7E); else CFontzPacket_raw_chr(drvthis, x, y, 0xDF); break; case ICON_CHECKBOX_OFF: CFontzPacket_set_char(drvthis, 3, checkbox_off); CFontzPacket_chr(drvthis, x, y, 3); break; case ICON_CHECKBOX_ON: CFontzPacket_set_char(drvthis, 4, checkbox_on); CFontzPacket_chr(drvthis, x, y, 4); break; case ICON_CHECKBOX_GRAY: CFontzPacket_set_char(drvthis, 5, checkbox_gray); CFontzPacket_chr(drvthis, x, y, 5); break; case ICON_SELECTOR_AT_LEFT: if (p->model == 633) return -1; CFontzPacket_raw_chr(drvthis, x, y, 0x10); break; case ICON_SELECTOR_AT_RIGHT: if (p->model == 633) return -1; CFontzPacket_raw_chr(drvthis, x, y, 0x11); break; default: return -1; /* Let the core do other icons */ } return 0; } /* * * Sets cursor position and state */ MODULE_EXPORT void CFontzPacket_cursor (Driver *drvthis, int x, int y, int state) { PrivateData *p = (PrivateData *) drvthis->private_data; if (p->model != 633) { unsigned char cpos[2] = { 0, 0 }; /* set cursor state */ switch (state) { case CURSOR_OFF: // no cursor send_onebyte_message(p->fd, CF633_Set_LCD_Cursor_Style, 0); break; case CURSOR_UNDER: // underline cursor send_onebyte_message(p->fd, CF633_Set_LCD_Cursor_Style, 2); break; case CURSOR_BLOCK: // inverting blinking block send_onebyte_message(p->fd, CF633_Set_LCD_Cursor_Style, 4); break; case CURSOR_DEFAULT_ON: // blinking block default: send_onebyte_message(p->fd, CF633_Set_LCD_Cursor_Style, 1); break; } /* set cursor position */ if ((x > 0) && (x <= p->width)) cpos[0] = x - 1; if ((y > 0) && (y <= p->height)) cpos[1] = y - 1; send_bytes_message(p->fd, CF633_Set_LCD_Cursor_Position, 2, cpos); } } /* * Clears the LCD screen */ MODULE_EXPORT void CFontzPacket_clear (Driver *drvthis) { PrivateData *p = drvthis->private_data; memset(p->framebuf, ' ', p->width * p->height); p->ccmode = standard; } /* * Hardware clears the LCD screen */ static void CFontzPacket_hardware_clear (Driver *drvthis) { PrivateData *p = drvthis->private_data; send_zerobyte_message(p->fd, CF633_Clear_LCD_Screen); } /* * Prints a string on the lcd display, at position (x,y). The * upper-left is (1,1), and the lower right is (p->width, p->height). */ MODULE_EXPORT void CFontzPacket_string (Driver *drvthis, int x, int y, char string[]) { PrivateData *p = drvthis->private_data; int i; /* Convert 1-based coords to 0-based... */ x--; y--; if ((y < 0) || (y >= p->height)) return; for (i = 0; (string[i] != '\0') && (x < p->width); i++, x++) { /* Check for buffer overflows... */ if (x >= 0) p->framebuf[(y * p->width) + x] = (p->model == 633) ? string[i] : CFontz_charmap[(unsigned) string[i]]; } } /* * Output values using the LEDs of a CF635 */ MODULE_EXPORT void CFontzPacket_output(Driver *drvthis, int state) { static const unsigned char CFontz635_LEDs[CF635_NUM_LEDs] = { 11, 9, 7, 5, // Green LEDs first, Top first 12,10, 8, 6, // Red LEDs next, Top first }; PrivateData *p = drvthis->private_data; unsigned char out[2]; int lednum; if (p->model != 635) return; for (lednum = 0; lednum < CF635_NUM_LEDs; lednum++) { unsigned int mask = (1 << lednum); int on_off = (state & mask); if ((p->LEDstate & mask) != on_off) { out[0] = CFontz635_LEDs[lednum]; out[1] = (on_off == 0) ? 0 : 100; send_bytes_message(p->fd, CF633_Set_GPIO_Pin, 2, out); } } p->LEDstate = state; } /* * Provide some info about this driver */ MODULE_EXPORT const char * CFontzPacket_get_info(Driver *drvthis) { PrivateData *p = drvthis->private_data; snprintf(p->info, sizeof(p->info)-1, "CrystalFontz Driver: CFA-%d", p->model); return p->info; } /* EOF */