diff options
Diffstat (limited to 'oncology/dpfhack_display/lcd4linux/.svn/text-base/drv_picoLCD.c.svn-base')
| -rw-r--r-- | oncology/dpfhack_display/lcd4linux/.svn/text-base/drv_picoLCD.c.svn-base | 492 |
1 files changed, 0 insertions, 492 deletions
diff --git a/oncology/dpfhack_display/lcd4linux/.svn/text-base/drv_picoLCD.c.svn-base b/oncology/dpfhack_display/lcd4linux/.svn/text-base/drv_picoLCD.c.svn-base deleted file mode 100644 index b9717754..00000000 --- a/oncology/dpfhack_display/lcd4linux/.svn/text-base/drv_picoLCD.c.svn-base +++ /dev/null @@ -1,492 +0,0 @@ -/* $Id$ - * $URL$ - * - * driver for picoLCD displays from mini-box.com - * - * Copyright (C) 2005 Michael Reinelt <michael@reinelt.co.at> - * Copyright (C) 2005, 2006, 2007 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net> - * - * Copyright (C) 2007 Nicu Pavel, Mini-Box.com <npavel@mini-box.com> - * - * 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_picoLCD - * - */ - -#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/ioctl.h> -#include <sys/time.h> - -#include <usb.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_keypad.h" - - - -#define picoLCD_VENDOR 0x04d8 -#define picoLCD_DEVICE 0x0002 - -static char Name[] = "picoLCD"; - -static unsigned int gpo = 0; - -static char *Buffer; -static char *BufPtr; - -static usb_dev_handle *lcd; - - - -/****************************************/ -/*** hardware dependant functions ***/ -/****************************************/ - -static int drv_pL_open(void) -{ - struct usb_bus *busses, *bus; - struct usb_device *dev; - char driver[1024]; - char product[1024]; - char manufacturer[1024]; - char serialnumber[1024]; - int ret; - - lcd = NULL; - - info("%s: scanning for picoLCD...", Name); - - usb_set_debug(0); - - usb_init(); - usb_find_busses(); - usb_find_devices(); - busses = usb_get_busses(); - - for (bus = busses; bus; bus = bus->next) { - for (dev = bus->devices; dev; dev = dev->next) { - if ((dev->descriptor.idVendor == picoLCD_VENDOR) && (dev->descriptor.idProduct == picoLCD_DEVICE)) { - - info("%s: found picoLCD on bus %s device %s", Name, bus->dirname, dev->filename); - - lcd = usb_open(dev); - - ret = usb_get_driver_np(lcd, 0, driver, sizeof(driver)); - - if (ret == 0) { - info("%s: interface 0 already claimed by '%s'", Name, driver); - info("%s: attempting to detach driver...", Name); - if (usb_detach_kernel_driver_np(lcd, 0) < 0) { - error("%s: usb_detach_kernel_driver_np() failed!", Name); - return -1; - } - } - - usb_set_configuration(lcd, 1); - usleep(100); - - if (usb_claim_interface(lcd, 0) < 0) { - error("%s: usb_claim_interface() failed!", Name); - return -1; - } - - usb_set_altinterface(lcd, 0); - - usb_get_string_simple(lcd, dev->descriptor.iProduct, product, sizeof(product)); - usb_get_string_simple(lcd, dev->descriptor.iManufacturer, manufacturer, sizeof(manufacturer)); - usb_get_string_simple(lcd, dev->descriptor.iSerialNumber, serialnumber, sizeof(serialnumber)); - - info("%s: Manufacturer='%s' Product='%s' SerialNumber='%s'", Name, manufacturer, product, serialnumber); - - return 0; - } - } - } - error("%s: could not find a picoLCD", Name); - return -1; -} - - -static int drv_pL_close(void) -{ - usb_release_interface(lcd, 0); - usb_close(lcd); - - return 0; -} - - -static void drv_pL_send(unsigned char *data, int size) -{ - usb_interrupt_write(lcd, USB_ENDPOINT_OUT + 1, (char *) data, size, 1000); -} - -static int drv_pL_read(unsigned char *data, int size) -{ - return usb_interrupt_read(lcd, USB_ENDPOINT_OUT + 1, (char *) data, size, 1000); -} - - - -static void drv_pL_clear(void) -{ - unsigned char cmd[1] = { 0x94 }; /* clear display */ - drv_pL_send(cmd, 1); -} - -static int drv_pL_contrast(int contrast) -{ - unsigned char cmd[2] = { 0x92 }; /* set contrast */ - - if (contrast < 0) - contrast = 0; - if (contrast > 255) - contrast = 255; - - cmd[1] = contrast; - drv_pL_send(cmd, 2); - - return contrast; -} - - -static int drv_pL_backlight(int backlight) -{ - unsigned char cmd[2] = { 0x91 }; /* set backlight */ - - if (backlight < 0) - backlight = 0; - if (backlight > 1) - backlight = 1; - - cmd[1] = backlight; - drv_pL_send(cmd, 2); - - return backlight; -} - -#define _USBLCD_MAX_DATA_LEN 24 -#define IN_REPORT_KEY_STATE 0x11 -static int drv_pL_gpi( __attribute__ ((unused)) - int num) -{ - int ret; - unsigned char read_packet[_USBLCD_MAX_DATA_LEN]; - ret = drv_pL_read(read_packet, _USBLCD_MAX_DATA_LEN); - if ((ret > 0) && (read_packet[0] == IN_REPORT_KEY_STATE)) { - debug("picoLCD: pressed key= 0x%02x\n", read_packet[1]); - return read_packet[1]; - } - return 0; -} - -static int drv_pL_gpo(int num, int val) -{ - unsigned char cmd[2] = { 0x81 }; /* set GPO */ - - if (num < 0) - num = 0; - if (num > 7) - num = 7; - - if (val < 0) - val = 0; - if (val > 1) - val = 1; - - /* set led bit to 1 or 0 */ - if (val) - gpo |= 1 << num; - else - gpo &= ~(1 << num); - - cmd[1] = gpo; - drv_pL_send(cmd, 2); - - return val; -} - - -static void drv_pL_write(const int row, const int col, const char *data, int len) -{ - unsigned char cmd[64]; - int i; - - cmd[0] = 0x98; /* goto/write */ - cmd[1] = row; - cmd[2] = col; - cmd[3] = len; - - i = 4; - while (len--) { - cmd[i++] = *data++; - } - - drv_pL_send(cmd, i); -} - -static void drv_pL_defchar(const int ascii, const unsigned char *matrix) -{ - unsigned char cmd[10] = { 0x9c }; /* define character */ - int i; - - cmd[1] = ascii; - for (i = 0; i < 8; i++) { - cmd[i + 2] = *matrix++ & 0x1f; - } - - drv_pL_send(cmd, 10); -} - - -static int drv_pL_start(const char *section, const int quiet) -{ - int rows = -1, cols = -1; - int value; - char *s; - - s = cfg_get(section, "Size", NULL); - if (s == NULL || *s == '\0') { - error("%s: no '%s.Size' entry from %s", Name, section, cfg_source()); - 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; - } - - DROWS = rows; - DCOLS = cols; - - if (drv_pL_open() < 0) { - return -1; - } - - /* Init the command buffer */ - Buffer = (char *) malloc(1024); - if (Buffer == NULL) { - error("%s: coommand buffer could not be allocated: malloc() failed", Name); - return -1; - } - BufPtr = Buffer; - - if (cfg_number(section, "Contrast", 0, 0, 255, &value) > 0) { - info("Setting contrast to %d", value); - drv_pL_contrast(value); - } - - if (cfg_number(section, "Backlight", 0, 0, 1, &value) > 0) { - info("Setting backlight to %d", value); - drv_pL_backlight(value); - } - - drv_pL_clear(); /* clear display */ - - if (!quiet) { - char buffer[40]; - qprintf(buffer, sizeof(buffer), "%s %dx%d", Name, DCOLS, DROWS); - if (drv_generic_text_greet(buffer, "http://www.picolcd.com")) { - sleep(3); - drv_pL_clear(); - } - } - - return 0; -} - - -/****************************************/ -/*** plugins ***/ -/****************************************/ - -static void plugin_contrast(RESULT * result, RESULT * arg1) -{ - double contrast; - - contrast = drv_pL_contrast(R2N(arg1)); - SetResult(&result, R_NUMBER, &contrast); -} - -static void plugin_backlight(RESULT * result, RESULT * arg1) -{ - double backlight; - - backlight = drv_pL_backlight(R2N(arg1)); - SetResult(&result, R_NUMBER, &backlight); -} - -static void plugin_gpo(RESULT * result, RESULT * argv[]) -{ - double gpo; - gpo = drv_pL_gpo(R2N(argv[0]), R2N(argv[1])); - SetResult(&result, R_NUMBER, &gpo); -} - -/****************************************/ -/*** 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_pL_list(void) -{ - printf("picoLCD 20x2 Text LCD"); - return 0; -} - - -/* initialize driver & display */ -int drv_pL_init(const char *section, const int quiet) -{ - WIDGET_CLASS wc; - int ret; - - info("%s: %s", Name, "$Rev$"); - - /* 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 */ - GPOS = 8; - GPIS = 1; - INVALIDATE = 1; - GOTO_COST = 2; /* number of bytes a goto command requires */ - - /* real worker functions */ - drv_generic_text_real_write = drv_pL_write; - drv_generic_text_real_defchar = drv_pL_defchar; - drv_generic_gpio_real_set = drv_pL_gpo; - drv_generic_gpio_real_get = drv_pL_gpi; - - /* start display */ - if ((ret = drv_pL_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; - - drv_generic_text_bar_add_segment(0, 0, 255, 32); - - /* GPO's init */ - 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 */ - AddFunction("LCD::contrast", -1, plugin_contrast); - AddFunction("LCD::backlight", -1, plugin_backlight); - AddFunction("LCD::gpo", -1, plugin_gpo); - - return 0; -} - - -/* close driver & display */ -int drv_pL_quit(const int quiet) -{ - - info("%s: shutting down.", Name); - - drv_generic_text_quit(); - - /* clear display */ - drv_pL_clear(); - - /* say goodbye... */ - if (!quiet) { - drv_generic_text_greet("goodbye!", NULL); - } - - drv_pL_close(); - - if (Buffer) { - free(Buffer); - Buffer = NULL; - BufPtr = Buffer; - } - - return (0); -} - - -DRIVER drv_picoLCD = { - .name = Name, - .list = drv_pL_list, - .init = drv_pL_init, - .quit = drv_pL_quit, -}; |
