mirror of
https://github.com/netfun2000/lcd4linux.git
synced 2026-02-27 09:44:34 +08:00
7fc8ef21bd
git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@1144 3ae390bd-cb1e-0410-b409-cd5a39f66f1f
649 lines
17 KiB
C
649 lines
17 KiB
C
|
|
/* $Id$
|
|
* $URL$
|
|
*
|
|
* GLCD2USB driver for LCD4Linux
|
|
* (see http://www.harbaum.org/till/glcd2usb for hardware)
|
|
*
|
|
* Copyright (C) 2007 Till Harbaum <till@harbaum.org>
|
|
*
|
|
* 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_GLCD2USB
|
|
*
|
|
*/
|
|
|
|
/*
|
|
* Options:
|
|
*/
|
|
|
|
#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/time.h>
|
|
#include <usb.h>
|
|
|
|
#include "debug.h"
|
|
#include "cfg.h"
|
|
#include "timer.h"
|
|
#include "qprintf.h"
|
|
#include "plugin.h"
|
|
#include "widget.h"
|
|
#include "widget_text.h"
|
|
#include "widget_icon.h"
|
|
#include "widget_bar.h"
|
|
#include "widget_keypad.h"
|
|
#include "drv.h"
|
|
#include "drv_generic_graphic.h"
|
|
#include "drv_generic_keypad.h"
|
|
|
|
/* Numeric constants for 'reportType' parameters */
|
|
#define USB_HID_REPORT_TYPE_INPUT 1
|
|
#define USB_HID_REPORT_TYPE_OUTPUT 2
|
|
#define USB_HID_REPORT_TYPE_FEATURE 3
|
|
|
|
/* These are the error codes which can be returned by functions of this
|
|
* module.
|
|
*/
|
|
#define USB_ERROR_NONE 0
|
|
#define USB_ERROR_ACCESS 1
|
|
#define USB_ERROR_NOTFOUND 2
|
|
#define USB_ERROR_BUSY 16
|
|
#define USB_ERROR_IO 5
|
|
|
|
/* ------------------------------------------------------------------------ */
|
|
|
|
#include "glcd2usb.h"
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
#define USBRQ_HID_GET_REPORT 0x01
|
|
#define USBRQ_HID_SET_REPORT 0x09
|
|
|
|
usb_dev_handle *dev = NULL;
|
|
|
|
/* USB message buffer */
|
|
static union {
|
|
unsigned char bytes[132];
|
|
display_info_t display_info;
|
|
} buffer;
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
|
|
#define IDENT_VENDOR_NUM 0x1c40
|
|
#define IDENT_VENDOR_STRING "www.harbaum.org/till/glcd2usb"
|
|
#define IDENT_PRODUCT_NUM 0x0525
|
|
#define IDENT_PRODUCT_STRING "GLCD2USB"
|
|
|
|
/* early versions used the ftdi vendor id */
|
|
#define IDENT_VENDOR_NUM_OLD 0x0403
|
|
#define IDENT_PRODUCT_NUM_OLD 0xc634
|
|
|
|
static char Name[] = IDENT_PRODUCT_STRING;
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
static int usbGetString(usb_dev_handle * dev, int index, char *buf, int buflen)
|
|
{
|
|
char buffer[256];
|
|
int rval, i;
|
|
|
|
if ((rval = usb_control_msg(dev, USB_ENDPOINT_IN, USB_REQ_GET_DESCRIPTOR,
|
|
(USB_DT_STRING << 8) + index, 0x0409, buffer, sizeof(buffer), 1000)) < 0)
|
|
return rval;
|
|
|
|
/* not a string */
|
|
if (buffer[1] != USB_DT_STRING)
|
|
return 0;
|
|
|
|
/* string would have been longer than buffer is */
|
|
if ((unsigned char) buffer[0] < rval)
|
|
rval = (unsigned char) buffer[0];
|
|
|
|
/* 16 bit unicode -> 8 bit ascii */
|
|
rval /= 2;
|
|
|
|
/* lossy conversion to ISO Latin1 */
|
|
for (i = 1; i < rval; i++) {
|
|
if (i > buflen) /* destination buffer overflow */
|
|
break;
|
|
|
|
buf[i - 1] = buffer[2 * i];
|
|
|
|
if (buffer[2 * i + 1] != 0) /* outside of ISO Latin1 range */
|
|
buf[i - 1] = '?';
|
|
}
|
|
|
|
/* terminate string */
|
|
buf[i - 1] = 0;
|
|
|
|
return i - 1;
|
|
}
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
int usbOpenDevice(usb_dev_handle ** device, int vendor, char *vendorName, int product, char *productName)
|
|
{
|
|
struct usb_bus *bus;
|
|
struct usb_device *dev;
|
|
usb_dev_handle *handle = NULL;
|
|
int errorCode = USB_ERROR_NOTFOUND;
|
|
static int didUsbInit = 0;
|
|
|
|
if (!didUsbInit) {
|
|
usb_init();
|
|
didUsbInit = 1;
|
|
}
|
|
|
|
usb_find_busses();
|
|
usb_find_devices();
|
|
|
|
for (bus = usb_get_busses(); bus; bus = bus->next) {
|
|
for (dev = bus->devices; dev; dev = dev->next) {
|
|
if (dev->descriptor.idVendor == vendor && dev->descriptor.idProduct == product) {
|
|
char string[256];
|
|
int len;
|
|
handle = usb_open(dev); /* we need to open the device in order to query strings */
|
|
if (!handle) {
|
|
errorCode = USB_ERROR_ACCESS;
|
|
error("%s Warning: cannot open USB device: %s", Name, usb_strerror());
|
|
continue;
|
|
}
|
|
if (vendorName == NULL && productName == NULL) { /* name does not matter */
|
|
break;
|
|
}
|
|
/* now check whether the names match: */
|
|
len = usbGetString(handle, dev->descriptor.iManufacturer, string, sizeof(string));
|
|
if (len < 0) {
|
|
errorCode = USB_ERROR_IO;
|
|
error("%s: Cannot query manufacturer for device: %s", Name, usb_strerror());
|
|
} else {
|
|
errorCode = USB_ERROR_NOTFOUND;
|
|
if (strcmp(string, vendorName) == 0) {
|
|
len = usbGetString(handle, dev->descriptor.iProduct, string, sizeof(string));
|
|
if (len < 0) {
|
|
errorCode = USB_ERROR_IO;
|
|
fprintf(stderr, "Warning: cannot query product for device: %s\n", usb_strerror());
|
|
} else {
|
|
errorCode = USB_ERROR_NOTFOUND;
|
|
if (strcmp(string, productName) == 0)
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
usb_close(handle);
|
|
handle = NULL;
|
|
}
|
|
}
|
|
if (handle)
|
|
break;
|
|
}
|
|
|
|
if (handle != NULL) {
|
|
int rval, retries = 3;
|
|
if (usb_set_configuration(handle, 1)) {
|
|
fprintf(stderr, "Warning: could not set configuration: %s\n", usb_strerror());
|
|
}
|
|
/* now try to claim the interface and detach the kernel HID driver on
|
|
* linux and other operating systems which support the call.
|
|
*/
|
|
while ((rval = usb_claim_interface(handle, 0)) != 0 && retries-- > 0) {
|
|
#ifdef LIBUSB_HAS_DETACH_KERNEL_DRIVER_NP
|
|
if (usb_detach_kernel_driver_np(handle, 0) < 0) {
|
|
fprintf(stderr, "Warning: could not detach kernel HID driver: %s\n", usb_strerror());
|
|
}
|
|
#endif
|
|
}
|
|
#ifndef __APPLE__
|
|
if (rval != 0)
|
|
fprintf(stderr, "Warning: could not claim interface\n");
|
|
#endif
|
|
/* Continue anyway, even if we could not claim the interface. Control transfers
|
|
* should still work.
|
|
*/
|
|
errorCode = 0;
|
|
*device = handle;
|
|
}
|
|
return errorCode;
|
|
}
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
void usbCloseDevice(usb_dev_handle * device)
|
|
{
|
|
if (device != NULL)
|
|
usb_close(device);
|
|
}
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
int usbSetReport(usb_dev_handle * device, int reportType, unsigned char *buffer, int len)
|
|
{
|
|
int bytesSent;
|
|
|
|
/* the write command needs some tweaking regarding allowed report lengths */
|
|
if (buffer[0] == GLCD2USB_RID_WRITE) {
|
|
int i = 0, allowed_lengths[] = { 4 + 4, 8 + 4, 16 + 4, 32 + 4, 64 + 4, 128 + 4 };
|
|
|
|
if (len > 128 + 4)
|
|
error("%s: %d bytes usb report is too long \n", Name, len);
|
|
|
|
while (allowed_lengths[i] != (128 + 4) && allowed_lengths[i] < len)
|
|
i++;
|
|
|
|
len = allowed_lengths[i];
|
|
buffer[0] = GLCD2USB_RID_WRITE + i;
|
|
}
|
|
|
|
bytesSent = usb_control_msg(device, USB_TYPE_CLASS | USB_RECIP_INTERFACE |
|
|
USB_ENDPOINT_OUT, USBRQ_HID_SET_REPORT,
|
|
reportType << 8 | buffer[0], 0, (char *) buffer, len, 1000);
|
|
if (bytesSent != len) {
|
|
if (bytesSent < 0)
|
|
error("%s: Error sending message: %s", Name, usb_strerror());
|
|
return USB_ERROR_IO;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
int usbGetReport(usb_dev_handle * device, int reportType, int reportNumber, unsigned char *buffer, int *len)
|
|
{
|
|
*len = usb_control_msg(device, USB_TYPE_CLASS | USB_RECIP_INTERFACE |
|
|
USB_ENDPOINT_IN, USBRQ_HID_GET_REPORT,
|
|
reportType << 8 | reportNumber, 0, (char *) buffer, *len, 1000);
|
|
if (*len < 0) {
|
|
error("%s: Error sending message: %s", Name, usb_strerror());
|
|
return USB_ERROR_IO;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
char *usbErrorMessage(int errCode)
|
|
{
|
|
static char buffer[80];
|
|
|
|
switch (errCode) {
|
|
case USB_ERROR_ACCESS:
|
|
return "Access to device denied";
|
|
case USB_ERROR_NOTFOUND:
|
|
return "The specified device was not found";
|
|
case USB_ERROR_BUSY:
|
|
return "The device is used by another application";
|
|
case USB_ERROR_IO:
|
|
return "Communication error with device";
|
|
default:
|
|
sprintf(buffer, "Unknown USB error %d", errCode);
|
|
return buffer;
|
|
}
|
|
return NULL; /* not reached */
|
|
}
|
|
|
|
static char *video_buffer = NULL;
|
|
static char *dirty_buffer = NULL;
|
|
|
|
static void drv_GLCD2USB_blit(const int row, const int col, const int height, const int width)
|
|
{
|
|
int r, c, err, i, j;
|
|
|
|
/* update offscreen buffer */
|
|
for (r = row; r < row + height; r++) {
|
|
for (c = col; c < col + width; c++) {
|
|
int x, y, bit;
|
|
|
|
/* these assignments are display layout dependent */
|
|
x = c;
|
|
y = r / 8;
|
|
bit = r % 8;
|
|
|
|
i = video_buffer[x + DCOLS * y];
|
|
|
|
if (drv_generic_graphic_black(r, c))
|
|
video_buffer[x + DCOLS * y] |= 1 << bit;
|
|
else
|
|
video_buffer[x + DCOLS * y] &= ~(1 << bit);
|
|
|
|
if (video_buffer[x + DCOLS * y] != i)
|
|
dirty_buffer[x + DCOLS * y] |= 1 << bit;
|
|
}
|
|
}
|
|
|
|
#if 0
|
|
/* display what's in the buffer (for debugging) */
|
|
for (r = 0; r < DROWS; r++) {
|
|
for (c = 0; c < DCOLS; c++) {
|
|
if (video_buffer[c + DCOLS * (r / 8)] & (1 << (r % 8)))
|
|
putchar('#');
|
|
else
|
|
putchar(' ');
|
|
}
|
|
putchar('\n');
|
|
}
|
|
#endif
|
|
|
|
/* short gaps of unchanged bytes in fact increase the communication */
|
|
/* overhead. so we eliminate them here */
|
|
for (j = -1, i = 0; i < DROWS * DCOLS / 8; i++) {
|
|
if (dirty_buffer[i] && j >= 0 && i - j <= 4) {
|
|
/* found a clean gap <= 4 bytes: mark it dirty */
|
|
for (r = j; r < i; r++)
|
|
dirty_buffer[r] = 1;
|
|
}
|
|
|
|
/* if this is dirty, drop the saved position */
|
|
if (dirty_buffer[i])
|
|
j = -1;
|
|
|
|
/* save position of this clean entry if there's no position saved yet */
|
|
if (!dirty_buffer[i] && j < 0)
|
|
j = i;
|
|
}
|
|
|
|
/* and do the actual data transmission */
|
|
buffer.bytes[0] = 0;
|
|
for (i = 0; i < DROWS * DCOLS / 8; i++) {
|
|
if (dirty_buffer[i]) {
|
|
/* starting a new run? */
|
|
if (!buffer.bytes[0]) {
|
|
buffer.bytes[0] = GLCD2USB_RID_WRITE;
|
|
buffer.bytes[1] = i % 256; // offset
|
|
buffer.bytes[2] = i / 256;
|
|
buffer.bytes[3] = 0; // length
|
|
}
|
|
buffer.bytes[4 + buffer.bytes[3]++] = video_buffer[i];
|
|
}
|
|
|
|
/* this part of the buffer is not dirty or we are at end */
|
|
/* of buffer or the buffer is fill: send data then */
|
|
if ((!dirty_buffer[i]) || (i == DROWS * DCOLS / 8 - 1) || (buffer.bytes[3] == 128)) {
|
|
/* is there data to be sent in the buffer? */
|
|
if (buffer.bytes[0] && buffer.bytes[3]) {
|
|
if ((err = usbSetReport(dev, USB_HID_REPORT_TYPE_FEATURE, buffer.bytes, buffer.bytes[3] + 4)) != 0)
|
|
error("%s: Error sending display contents: %s", Name, usbErrorMessage(err));
|
|
|
|
buffer.bytes[0] = 0;
|
|
}
|
|
}
|
|
|
|
/* this entry isn't dirty anymore */
|
|
dirty_buffer[i] = 0;
|
|
}
|
|
}
|
|
|
|
static int drv_GLCD2USB_brightness(int brightness)
|
|
{
|
|
int err = 0;
|
|
|
|
printf("setting bright to %d\n", brightness);
|
|
|
|
if (brightness < 0)
|
|
brightness = 0;
|
|
if (brightness > 255)
|
|
brightness = 255;
|
|
|
|
buffer.bytes[0] = GLCD2USB_RID_SET_BL;
|
|
buffer.bytes[1] = brightness;
|
|
if ((err = usbSetReport(dev, USB_HID_REPORT_TYPE_FEATURE, buffer.bytes, 2)) != 0) {
|
|
error("%s: Error freeing display: %s\n", Name, usbErrorMessage(err));
|
|
usbCloseDevice(dev);
|
|
return -1;
|
|
}
|
|
|
|
return brightness;
|
|
}
|
|
|
|
static void drv_GLCD2USB_timer(void __attribute__ ((unused)) * notused)
|
|
{
|
|
/* request button state */
|
|
static unsigned int last_but = 0;
|
|
int err = 0, len = 2;
|
|
|
|
if ((err = usbGetReport(dev, USB_HID_REPORT_TYPE_FEATURE, GLCD2USB_RID_GET_BUTTONS, buffer.bytes, &len)) != 0) {
|
|
fprintf(stderr, "Error getting button state: %s\n", usbErrorMessage(err));
|
|
return;
|
|
}
|
|
|
|
int i;
|
|
|
|
/* check if button state changed */
|
|
if (buffer.bytes[1] ^ last_but) {
|
|
|
|
/* send single keypad events for all changed buttons */
|
|
for (i = 0; i < 4; i++)
|
|
if ((buffer.bytes[1] & (1 << i)) ^ (last_but & (1 << i)))
|
|
drv_generic_keypad_press(((buffer.bytes[1] & (1 << i)) ? 0x80 : 0) | i);
|
|
}
|
|
|
|
last_but = buffer.bytes[1];
|
|
}
|
|
|
|
static int drv_GLCD2USB_start(const char *section)
|
|
{
|
|
int brightness;
|
|
char *s;
|
|
int err = 0, len;
|
|
|
|
if (sscanf(s = cfg_get(section, "font", "6x8"), "%dx%d", &XRES, &YRES) != 2 || XRES < 1 || YRES < 1) {
|
|
error("%s: bad %s.Font '%s' from %s", Name, section, s, cfg_source());
|
|
free(s);
|
|
return -1;
|
|
}
|
|
free(s);
|
|
|
|
if ((err = usbOpenDevice(&dev, IDENT_VENDOR_NUM, IDENT_VENDOR_STRING,
|
|
IDENT_PRODUCT_NUM, IDENT_PRODUCT_STRING)) != 0) {
|
|
if ((err = usbOpenDevice(&dev, IDENT_VENDOR_NUM_OLD, IDENT_VENDOR_STRING,
|
|
IDENT_PRODUCT_NUM_OLD, IDENT_PRODUCT_STRING)) != 0) {
|
|
error("%s: opening GLCD2USB device: %s", Name, usbErrorMessage(err));
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
info("%s: Found device", Name);
|
|
|
|
/* query display parameters */
|
|
memset(&buffer, 0, sizeof(buffer));
|
|
|
|
len = sizeof(display_info_t);
|
|
if ((err = usbGetReport(dev, USB_HID_REPORT_TYPE_FEATURE, GLCD2USB_RID_GET_INFO, buffer.bytes, &len)) != 0) {
|
|
|
|
error("%s: query display parameters: %s", Name, usbErrorMessage(err));
|
|
usbCloseDevice(dev);
|
|
return -1;
|
|
}
|
|
|
|
if (len < (int) sizeof(buffer.display_info)) {
|
|
error("%s: Not enough bytes in display info report (%d instead of %d)",
|
|
Name, len, (int) sizeof(buffer.display_info));
|
|
usbCloseDevice(dev);
|
|
return -1;
|
|
}
|
|
|
|
info("%s: display name = %s", Name, buffer.display_info.name);
|
|
info("%s: display resolution = %d * %d", Name, buffer.display_info.width, buffer.display_info.height);
|
|
info("%s: display flags: %x", Name, buffer.display_info.flags);
|
|
|
|
/* TODO: check for supported features */
|
|
|
|
|
|
/* save display size */
|
|
DCOLS = buffer.display_info.width;
|
|
DROWS = buffer.display_info.height;
|
|
|
|
/* allocate a offscreen buffer */
|
|
video_buffer = malloc(DCOLS * DROWS / 8);
|
|
dirty_buffer = malloc(DCOLS * DROWS / 8);
|
|
memset(video_buffer, 0, DCOLS * DROWS / 8);
|
|
memset(dirty_buffer, 0, DCOLS * DROWS / 8);
|
|
|
|
/* get access to display */
|
|
buffer.bytes[0] = GLCD2USB_RID_SET_ALLOC;
|
|
buffer.bytes[1] = 1; /* 1=alloc, 0=free */
|
|
if ((err = usbSetReport(dev, USB_HID_REPORT_TYPE_FEATURE, buffer.bytes, 2)) != 0) {
|
|
error("%s: Error allocating display: %s", Name, usbErrorMessage(err));
|
|
usbCloseDevice(dev);
|
|
return -1;
|
|
}
|
|
|
|
/* regularly request key state. can be quite slow since the device */
|
|
/* buffers button presses internally */
|
|
timer_add(drv_GLCD2USB_timer, NULL, 100, 0);
|
|
|
|
if (cfg_number(section, "Brightness", 0, 0, 255, &brightness) > 0) {
|
|
drv_GLCD2USB_brightness(brightness);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
/****************************************/
|
|
/*** plugins ***/
|
|
/****************************************/
|
|
|
|
static void plugin_brightness(RESULT * result, RESULT * arg1)
|
|
{
|
|
double brightness;
|
|
|
|
brightness = drv_GLCD2USB_brightness(R2N(arg1));
|
|
SetResult(&result, R_NUMBER, &brightness);
|
|
}
|
|
|
|
/****************************************/
|
|
/*** widget callbacks ***/
|
|
/****************************************/
|
|
|
|
|
|
/* using drv_generic_graphic_draw(W) */
|
|
/* using drv_generic_graphic_icon_draw(W) */
|
|
/* using drv_generic_graphic_bar_draw(W) */
|
|
|
|
|
|
/****************************************/
|
|
/*** exported functions ***/
|
|
/****************************************/
|
|
|
|
|
|
/* list models */
|
|
int drv_GLCD2USB_list(void)
|
|
{
|
|
printf("GLCD2USB homebrew USB interface for graphic displays");
|
|
return 0;
|
|
}
|
|
|
|
static int drv_GLCD2USB_keypad(const int num)
|
|
{
|
|
const int keys[] = { WIDGET_KEY_LEFT, WIDGET_KEY_RIGHT,
|
|
WIDGET_KEY_CONFIRM, WIDGET_KEY_CANCEL
|
|
};
|
|
|
|
int val;
|
|
|
|
/* check for key press event */
|
|
if (num & 0x80)
|
|
val = WIDGET_KEY_PRESSED;
|
|
else
|
|
val = WIDGET_KEY_RELEASED;
|
|
|
|
return val | keys[num & 0x03];
|
|
}
|
|
|
|
/* initialize driver & display */
|
|
int drv_GLCD2USB_init(const char *section, const __attribute__ ((unused))
|
|
int quiet)
|
|
{
|
|
int ret;
|
|
|
|
info("%s: %s", Name, "$Rev$");
|
|
|
|
/* real worker functions */
|
|
drv_generic_graphic_real_blit = drv_GLCD2USB_blit;
|
|
drv_generic_keypad_real_press = drv_GLCD2USB_keypad;
|
|
|
|
/* start display */
|
|
if ((ret = drv_GLCD2USB_start(section)) != 0)
|
|
return ret;
|
|
|
|
/* initialize generic graphic driver */
|
|
if ((ret = drv_generic_graphic_init(section, Name)) != 0)
|
|
return ret;
|
|
|
|
/* initialize generic key pad driver */
|
|
if ((ret = drv_generic_keypad_init(section, Name)) != 0)
|
|
return ret;
|
|
|
|
/* register plugins */
|
|
AddFunction("LCD::brightness", 1, plugin_brightness);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* close driver & display */
|
|
int drv_GLCD2USB_quit(const __attribute__ ((unused))
|
|
int quiet)
|
|
{
|
|
int err;
|
|
|
|
info("%s: shutting down.", Name);
|
|
drv_generic_graphic_quit();
|
|
|
|
drv_generic_keypad_quit();
|
|
|
|
/* release access to display */
|
|
|
|
buffer.bytes[0] = GLCD2USB_RID_SET_ALLOC;
|
|
buffer.bytes[1] = 0; /* 1=alloc, 0=free */
|
|
if ((err = usbSetReport(dev, USB_HID_REPORT_TYPE_FEATURE, buffer.bytes, 2)) != 0) {
|
|
error("%s Error freeing display: %s", Name, usbErrorMessage(err));
|
|
}
|
|
|
|
/* clean up */
|
|
if (dev != NULL)
|
|
usbCloseDevice(dev);
|
|
|
|
if (video_buffer != NULL) {
|
|
free(video_buffer);
|
|
free(dirty_buffer);
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
|
|
DRIVER drv_GLCD2USB = {
|
|
.name = Name,
|
|
.list = drv_GLCD2USB_list,
|
|
.init = drv_GLCD2USB_init,
|
|
.quit = drv_GLCD2USB_quit,
|
|
};
|