dtv-scan-tables.git - dtv-scan-tables Debian packaging

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/* $Id: drv_Sample.c 975 2009-01-18 11:16:20Z michael $ * $URL: https://ssl.bulix.org/svn/lcd4linux/trunk/drv_Sample.c $ * * Shuttle SG33G5M VFD lcd4linux driver * * Copyright (C) 2009 Matthieu Crapet <mcrapet@gmail.com> * based on the USBLCD driver. * * Shuttle SG33G5M VFD (20x1 character display. Each character cell is 5x8 pixels) * - The display is driven by Princeton Technologies PT6314 VFD controller * - Cypress CY7C63723C (receives USB commands and talk to VFD controller) * * LCD "prococol" : each message has a length of 8 bytes * - 1 nibble: command (0x1, 0x3, 0x7, 0x9, 0xD) * - 0x1 : clear text and icons (len=1) * - 0x7 : icons (len=4) * - 0x9 : text (len=7) * - 0xD : set clock data (len=7) * - 0x3 : display clock (internal feature) (len=1) * - 1 nibble: message length (0-7) * - 7 bytes : message data * * 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_ShuttleVFD * */ #include "config.h" #include <stdlib.h> #include <stdio.h> #include <unistd.h> #include <string.h> #include <errno.h> #ifdef HAVE_USB_H #include <usb.h> #else #error "ShuttleVFD: libusb required" #endif #include "debug.h" #include "cfg.h" #include "qprintf.h" #include "udelay.h" #include "plugin.h" #include "widget.h" #include "widget_text.h" #include "widget_bar.h" // for DIRECTION #include "drv.h" #include "drv_generic_text.h" #include "drv_generic_gpio.h" /* * Some hardware definitions */ // VFD USB properties #define SHUTTLE_VFD_VENDOR_ID 0x051C #define SHUTTLE_VFD_PRODUCT_ID1 0x0003 #define SHUTTLE_VFD_PRODUCT_ID2 0x0005 // IR-receiver included #define SHUTTLE_VFD_INTERFACE_NUM 1 // VFD physical dimensions #define SHUTTLE_VFD_WIDTH 20 #define SHUTTLE_VFD_HEIGHT 1 // VFD USB control message #define SHUTTLE_VFD_PACKET_SIZE 8 #define SHUTTLE_VFD_DATA_SIZE (SHUTTLE_VFD_PACKET_SIZE-1) #define SHUTTLE_VFD_SUCCESS_SLEEP_USEC 25600 /* Global static data */ static char Name[] = "ShuttleVFD"; static usb_dev_handle *lcd; static unsigned char buffer[SHUTTLE_VFD_PACKET_SIZE]; /* Issues with the display module: * - Can't set cursor position. Must save full buffer here. * - Can't get icons status (on or off). Must save status here. * - Clear command also clear text AND icons. */ static unsigned char fb[SHUTTLE_VFD_WIDTH * SHUTTLE_VFD_HEIGHT]; static unsigned icons; /****************************************/ /*** hardware dependant functions ***/ /****************************************/ /* look for device on USB bus */ static int drv_ShuttleVFD_open(void) { struct usb_bus *bus; struct usb_device *dev; int vendor_id = SHUTTLE_VFD_VENDOR_ID; int interface = SHUTTLE_VFD_INTERFACE_NUM; lcd = NULL; usb_init(); usb_find_busses(); usb_find_devices(); for (bus = usb_get_busses(); bus != NULL; bus = bus->next) { for (dev = bus->devices; dev != NULL; dev = dev->next) { if (dev->descriptor.idVendor == vendor_id && ((dev->descriptor.idProduct == SHUTTLE_VFD_PRODUCT_ID1) || (dev->descriptor.idProduct == SHUTTLE_VFD_PRODUCT_ID2))) { unsigned int v = dev->descriptor.bcdDevice; info("%s: found ShuttleVFD V%1d%1d.%1d%1d on bus %s device %s", Name, (v & 0xF000) >> 12, (v & 0xF00) >> 8, (v & 0xF0) >> 4, (v & 0xF), bus->dirname, dev->filename); lcd = usb_open(dev); } } } if (lcd != NULL) { if (usb_claim_interface(lcd, interface) < 0) { usb_close(lcd); error("%s: usb_claim_interface() failed!", Name); error("%s: root permissions maybe required?", Name); return -1; } } else { error("%s: could not find ShuttleVFD", Name); return -1; } return 0; } static int drv_ShuttleVFD_close(void) { int interface = SHUTTLE_VFD_INTERFACE_NUM; usb_release_interface(lcd, interface); usb_close(lcd); return 0; } static void drv_ShuttleVFD_send(unsigned char packet[SHUTTLE_VFD_PACKET_SIZE]) { if (usb_control_msg(lcd, 0x21, // requesttype 0x09, // request 0x0200, // value 0x0001, // index (char *) packet, SHUTTLE_VFD_PACKET_SIZE, 100) == SHUTTLE_VFD_PACKET_SIZE) { udelay(SHUTTLE_VFD_SUCCESS_SLEEP_USEC); } else { debug("usb_control_msg failed"); } } /* Clear full display and icons. */ static void drv_ShuttleVFD_clear(void) { // Update local framebuffer mirror memset(fb, ' ', SHUTTLE_VFD_HEIGHT * SHUTTLE_VFD_WIDTH); buffer[0] = (1 << 4) + 1; buffer[1] = 0x1; drv_ShuttleVFD_send(buffer); } static void drv_ShuttleVFD_reset_cursor(void) { buffer[0] = (1 << 4) + 1; buffer[1] = 0x2; drv_ShuttleVFD_send(buffer); } /* text mode displays only */ static void drv_ShuttleVFD_write(const int row, const int col, const char *data, int len) { unsigned char *p; int i; // Update local framebuffer mirror memcpy(fb + (row * SHUTTLE_VFD_WIDTH) + col, data, len); p = fb; len = SHUTTLE_VFD_WIDTH; drv_ShuttleVFD_reset_cursor(); while (len > 0) { if (len > 7) buffer[0] = (9 << 4) + 7; else buffer[0] = (9 << 4) + len; for (i = 0; i < 7 && len--; i++) { buffer[i + 1] = *p++; } drv_ShuttleVFD_send(buffer); } } static void drv_ShuttleVFD_defchar(const int ascii, const unsigned char *matrix) { (void) matrix; debug("%s: not available (ascii=%d)", Name, ascii); } static int drv_ShuttleVFD_start(const char *section) { char *port; port = cfg_get(section, "Port", NULL); if (port == NULL || *port == '\0') { error("%s: no '%s.Port' entry from %s", Name, section, cfg_source()); return -1; } if (strcasecmp(port, "libusb") != 0) { error("%s: libusb expected", Name); error("%s: compile lcd4linux with libusb support!", Name); return -1; } DROWS = SHUTTLE_VFD_HEIGHT; DCOLS = SHUTTLE_VFD_WIDTH; /* open communication with the display */ if (drv_ShuttleVFD_open() < 0) { return -1; } drv_ShuttleVFD_clear(); /* clear display */ return 0; } /* VFD Icons. Add +1 in lcd4linux.conf (GPO1..GPIO27) * 0: television * 1: cd/dvd * 2: music * 3: radio * 4: clock * 5: pause * 6: play * 7: record * 8: rewind * 9: camera * 10: mute * 11: repeat * 12: reverse * 13: fastforward * 14: stop * 15: volume 1 * 16: volume 2 * ... * 25: volume 11 * 26: volume 12 */ static int drv_ShuttleVFD_icons_set(const int num, const int val) { unsigned long value; if (num < 0 || num >= 27) { info("%s: num %d out of range (1..27)", Name, num); return -1; } // Special case for volume (icon n°16) if (num >= 15) value = (num - 15 + 1) << 15; else value = 1 << num; if (val > 0) icons |= value; else icons &= ~value; buffer[0] = (7 << 4) + 4; buffer[1] = (value >> 15) & 0x1F; buffer[2] = (value >> 10) & 0x1F; buffer[3] = (value >> 5) & 0x1F; buffer[4] = value & 0x1F; // each data byte is stored on 5 bits drv_ShuttleVFD_send(buffer); return 0; } /****************************************/ /*** plugins ***/ /****************************************/ /* none yet ! */ /****************************************/ /*** widget callbacks ***/ /****************************************/ /* using drv_generic_text_draw(W) */ /* using drv_generic_gpio_draw(W) */ /****************************************/ /*** exported functions ***/ /****************************************/ /* supported Shuttle models */ int drv_ShuttleVFD_list(void) { printf("Shuttle SG33G5M, Shuttle PF27 upgrade kit"); return 0; } /* initialize driver & text display */ int drv_ShuttleVFD_init(const char *section, const int quiet) { WIDGET_CLASS wc; int ret; info("%s: %s", Name, "$Rev: 975 $"); /* display preferences */ XRES = 5; /* pixel width of one char */ YRES = 8; /* pixel height of one char */ CHARS = 0; /* number of user-defineable characters */ CHAR0 = 0; /* ASCII of first user-defineable char */ GOTO_COST = 2; /* number of bytes a goto command requires */ GPOS = 15 + 12; /* Fancy icons on top of display */ /* real worker functions */ drv_generic_text_real_write = drv_ShuttleVFD_write; drv_generic_text_real_defchar = drv_ShuttleVFD_defchar; drv_generic_gpio_real_set = drv_ShuttleVFD_icons_set; /* start display */ if ((ret = drv_ShuttleVFD_start(section)) != 0) return ret; if (!quiet) { char buffer[40]; qprintf(buffer, sizeof(buffer), "%s %dx%d", Name, DCOLS, DROWS); if (drv_generic_text_greet(buffer, "Shuttle")) { sleep(3); drv_ShuttleVFD_clear(); } } /* initialize generic text driver */ if ((ret = drv_generic_text_init(section, Name)) != 0) return ret; /* 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); return 0; } /* close driver & text display */ int drv_ShuttleVFD_quit(const int quiet) { info("%s: shutting down.", Name); /* clear display */ drv_ShuttleVFD_clear(); /* say goodbye... */ if (!quiet) { drv_generic_text_greet("goodbye!", NULL); } drv_generic_text_quit(); drv_generic_gpio_quit(); debug("closing connection"); drv_ShuttleVFD_close(); return (0); } DRIVER drv_ShuttleVFD = { .name = Name, .list = drv_ShuttleVFD_list, .init = drv_ShuttleVFD_init, .quit = drv_ShuttleVFD_quit, };


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