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convert to use PrivateData

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This commit is contained in:
marschap
2006-04-10 18:20:04 +00:00
parent f2ab1e4ae4
commit ebc6965352
1 changed files with 192 additions and 165 deletions
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server/drivers/tyan_lcdm.c
+192 -165
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@@ -45,32 +45,37 @@
#include "report.h"
#include "lcd_lib.h"
#define TYAN_LCDM_KEY_ENTER 0xf2
#define TYAN_LCDM_KEY_ESCAPE 0xf3
#define TYAN_LCDM_KEY_RIGHT 0xf5
#define TYAN_LCDM_KEY_LEFT 0xf6
#define TYAN_LCDM_KEY_UP 0xf7
#define TYAN_LCDM_KEY_DOWN 0xf8
#define TYAN_LCDM_KEY_ENTER 0xF2
#define TYAN_LCDM_KEY_ESCAPE 0xF3
#define TYAN_LCDM_KEY_RIGHT 0xF5
#define TYAN_LCDM_KEY_LEFT 0xF6
#define TYAN_LCDM_KEY_UP 0xF7
#define TYAN_LCDM_KEY_DOWN 0xF8
#define TYAN_LCDM_CMD_BEGIN 0xf1
#define TYAN_LCDM_CMD_END 0xf2
#define TYAN_LCDM_CMD_BEGIN 0xF1
#define TYAN_LCDM_CMD_END 0xF2
static int custom = 0;
typedef enum {
normal = 0,
hbar = 1,
vbar = 2,
cust = 3,
} custom_type;
static int fd;
static unsigned char *framebuf = NULL;
static unsigned char *old = NULL;
static int width = 0;
static int height = 0;
static int cellwidth = DEFAULT_CELL_WIDTH;
static int cellheight = DEFAULT_CELL_HEIGHT;
typedef struct driver_private_data {
char device[200];
int speed;
int fd;
unsigned char *framebuf;
unsigned char *backingstore;
int width;
int height;
int cellwidth;
int cellheight;
custom_type custom;
} PrivateData;
/* Vars for the server core */
MODULE_EXPORT char *api_version = API_VERSION;
@@ -79,17 +84,18 @@ MODULE_EXPORT int supports_multiple = 0;
MODULE_EXPORT char *symbol_prefix = "tyan_lcdm_";
/* Internal functions */
static void tyan_lcdm_init_vbar (Driver * drvthis);
static void tyan_lcdm_init_hbar (Driver * drvthis);
static void tyan_lcdm_switch_mode ();
static void tyan_lcdm_hardware_clear (Driver * drvthis);
static void tyan_lcdm_init_vbar(Driver *drvthis);
static void tyan_lcdm_init_hbar(Driver *drvthis);
static void tyan_lcdm_set_rampos(unsigned char pos);
static void tyan_lcdm_write_str(unsigned char *str, unsigned char start_addr, int length);
static void tyan_lcdm_switch_mode(int fdfd);
static void tyan_lcdm_hardware_clear(int fd);
static void tyan_lcdm_set_rampos(int fd, unsigned char pos);
static void tyan_lcdm_write_str(int fd, unsigned char *str, unsigned char start_addr, int length);
#if 0
static void tyan_lcdm_set_cursor(unsigned char start_addr, int pos);
static void tyan_lcdm_set_cursor(int fd, unsigned char start_addr, int pos);
#endif
static unsigned char tyan_lcdm_read_key();
static unsigned char tyan_lcdm_read_key(int fd);
/*
* Opens com port and sets baud correctly...
@@ -97,20 +103,34 @@ static unsigned char tyan_lcdm_read_key();
MODULE_EXPORT int
tyan_lcdm_init (Driver * drvthis, char *args)
{
PrivateData *p;
struct termios portset;
char size[200] = DEFAULT_SIZE;
int tmp, w, h;
char device[200] = DEFAULT_DEVICE;
int speed = DEFAULT_SPEED;
char size[200] = DEFAULT_SIZE;
/* 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 private data */
p->speed = DEFAULT_SPEED;
p->custom = normal;
p->fd = -1;
p->framebuf = NULL;
p->backingstore = NULL;
p->cellwidth = DEFAULT_CELL_WIDTH;
p->cellheight = DEFAULT_CELL_HEIGHT;
debug(RPT_INFO, "tyan_lcdm: init(%p,%s)", drvthis, args);
/* Read config file */
/* Which serial device should be used */
strncpy(device, drvthis->config_get_string(drvthis->name, "Device", 0, DEFAULT_DEVICE), sizeof(device));
device[sizeof(device)-1] = '\0';
debug(RPT_INFO,"%s: using Device %s", drvthis->name, device);
strncpy(p->device, drvthis->config_get_string(drvthis->name, "Device", 0, DEFAULT_DEVICE), sizeof(p->device));
p->device[sizeof(p->device)-1] = '\0';
debug(RPT_INFO,"%s: using Device %s", drvthis->name, p->device);
/* Which size */
strncpy(size, drvthis->config_get_string(drvthis->name, "Size", 0, DEFAULT_SIZE), sizeof(size));
@@ -122,30 +142,30 @@ tyan_lcdm_init (Driver * drvthis, char *args)
drvthis->name, size, DEFAULT_SIZE);
sscanf(DEFAULT_SIZE , "%dx%d", &w, &h);
}
width = w;
height = h;
p->width = w;
p->height = h;
/* Which speed */
tmp = drvthis->config_get_int(drvthis->name , "Speed", 0, DEFAULT_SPEED);
if (tmp == 4800) speed = B4800;
else if (tmp == 9600) speed = B9600;
if (tmp == 4800) p->speed = B4800;
else if (tmp == 9600) p->speed = B9600;
else {
report(RPT_WARNING, "%s: Speed must be 4800 or 9600; using default %d",
drvthis->name, DEFAULT_SPEED);
speed = 9600;
p->speed = 9600;
}
/* Set up io port correctly, and open it... */
debug(RPT_DEBUG, "tyan_lcdm: Opening serial device: %s", device);
debug(RPT_DEBUG, "tyan_lcdm: Opening serial device: %s", p->device);
fd = open(device, O_RDWR | O_NOCTTY | O_NDELAY);
if (fd == -1) {
p->fd = open(p->device, O_RDWR | O_NOCTTY | O_NDELAY);
if (p->fd == -1) {
report(RPT_ERR, "%s: open(%s) failed (%s)",
drvthis->name, device, strerror(errno));
drvthis->name, p->device, strerror(errno));
return -1;
}
tcgetattr(fd, &portset);
tcgetattr(p->fd, &portset);
/* We use RAW mode */
#ifdef HAVE_CFMAKERAW
@@ -159,26 +179,33 @@ tyan_lcdm_init (Driver * drvthis, char *args)
portset.c_lflag = 0;
portset.c_cc[VMIN] = 1;
portset.c_cc[VTIME] = 0;
#endif
/* Set port speed */
cfsetospeed(&portset, speed);
cfsetispeed(&portset, speed);
cfsetospeed(&portset, p->speed);
cfsetispeed(&portset, p->speed);
/* Do it... */
tcsetattr(fd, TCSANOW, &portset);
tcsetattr(p->fd, TCSANOW, &portset);
/* Make sure the frame buffer is there... */
framebuf = (unsigned char *) malloc(width * height);
if (framebuf == NULL) {
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(framebuf, ' ', width * height);
memset(p->framebuf, ' ', p->width * p->height);
p->backingstore = (unsigned char *) malloc(p->width * p->height);
if (p->backingstore == NULL) {
report(RPT_ERR, "%s: unable to create backing store", drvthis->name);
return -1;
}
memset(p->backingstore, ' ', p->width * p->height);
/* Set display-specific stuff.. */
tyan_lcdm_switch_mode();
tyan_lcdm_switch_mode(p->fd);
tyan_lcdm_hardware_clear(p->fd);
report(RPT_DEBUG, "%s: init() done", drvthis->name);
@@ -191,15 +218,21 @@ tyan_lcdm_init (Driver * drvthis, char *args)
MODULE_EXPORT void
tyan_lcdm_close (Driver * drvthis)
{
close(fd);
PrivateData *p = drvthis->private_data;
if (framebuf)
free(framebuf);
framebuf = NULL;
if (p != NULL) {
if (p->fd >= 0)
close(p->fd);
if (old)
free(old);
old = NULL;
if (p->framebuf != NULL)
free(p->framebuf);
if (p->backingstore != NULL)
free(p->backingstore);
free(p);
}
drvthis->store_private_ptr(drvthis, NULL);
}
/*
@@ -208,7 +241,9 @@ tyan_lcdm_close (Driver * drvthis)
MODULE_EXPORT int
tyan_lcdm_width (Driver *drvthis)
{
return width;
PrivateData *p = drvthis->private_data;
return p->width;
}
/*
@@ -217,7 +252,9 @@ tyan_lcdm_width (Driver *drvthis)
MODULE_EXPORT int
tyan_lcdm_height (Driver *drvthis)
{
return height;
PrivateData *p = drvthis->private_data;
return p->height;
}
/*
@@ -226,37 +263,31 @@ tyan_lcdm_height (Driver *drvthis)
MODULE_EXPORT void
tyan_lcdm_flush (Driver * drvthis)
{
PrivateData *p = drvthis->private_data;
int i;
unsigned char *xp, *xq;
unsigned char *xp = p->framebuf;
unsigned char *xq = p->backingstore;
/*
* We don't use delta update yet.
* It is possible but not easy, we can only update a line, full or begining.
*/
if (old == NULL) {
old = (unsigned char *) malloc(width * height);
memset(old, ' ', width * height);
tyan_lcdm_hardware_clear(drvthis);
}
xp = framebuf;
xq = old;
for (i = 0; i < width; i++) {
for (i = 0; i < p->width; i++) {
if (*xp != *xq) {
tyan_lcdm_write_str(framebuf, 0x80, 16);
memcpy(old, framebuf, width);
tyan_lcdm_write_str(p->fd, p->framebuf, 0x80, 16);
memcpy(p->backingstore, p->framebuf, p->width);
break;
}
xp++; xq++;
}
xp = &framebuf[width];
xq = &old[width];
xp = p->framebuf + p->width;
xq = p->backingstore + p->width;
for (i = 0; i < width; i++) {
for (i = 0; i < p->width; i++) {
if (*xp != *xq) {
tyan_lcdm_write_str(&framebuf[width], 0xc0, 16);
memcpy(&old[width], &framebuf[width], width);
tyan_lcdm_write_str(p->fd, p->framebuf + p->width, 0xc0, 16);
memcpy(p->backingstore + p->width, p->framebuf + p->width, p->width);
break;
}
xp++; xq++;
@@ -269,7 +300,9 @@ tyan_lcdm_flush (Driver * drvthis)
MODULE_EXPORT const char *
tyan_lcdm_get_key (Driver *drvthis)
{
unsigned char key = tyan_lcdm_read_key();
PrivateData *p = drvthis->private_data;
unsigned char key = tyan_lcdm_read_key(p->fd);
switch (key) {
case TYAN_LCDM_KEY_LEFT:
@@ -305,11 +338,13 @@ tyan_lcdm_get_key (Driver *drvthis)
MODULE_EXPORT void
tyan_lcdm_chr (Driver * drvthis, int x, int y, char c)
{
PrivateData *p = drvthis->private_data;
y--;
x--;
if ((x >= 0) && (y >= 0) && (x < width) && (y < height))
framebuf[(y * width) + x] = c;
if ((x >= 0) && (y >= 0) && (x < p->width) && (y < p->height))
p->framebuf[(y * p->width) + x] = c;
}
/*
@@ -322,31 +357,6 @@ tyan_lcdm_backlight (Driver * drvthis, int on)
{
}
/*
* switch mode()
*/
static void
tyan_lcdm_switch_mode (Driver * drvthis)
{
char lcdcmd[4];
//set os selection
lcdcmd[0] = TYAN_LCDM_CMD_BEGIN;
lcdcmd[1] = 0x73;
lcdcmd[2] = 0x01;
lcdcmd[3] = TYAN_LCDM_CMD_END;
write(fd, lcdcmd, 4);
sleep(1);
//send "LCD Ready" cmd
lcdcmd[1] = 0x6c;
lcdcmd[2] = TYAN_LCDM_CMD_END;
write(fd, lcdcmd, 3);
sleep(1);
}
/*
* Sets up for vertical bars.
@@ -354,6 +364,7 @@ tyan_lcdm_switch_mode (Driver * drvthis)
static void
tyan_lcdm_init_vbar (Driver * drvthis)
{
PrivateData *p = drvthis->private_data;
char a[] = {
0, 0, 0, 0, 0,
0, 0, 0, 0, 0,
@@ -425,7 +436,7 @@ tyan_lcdm_init_vbar (Driver * drvthis)
1, 1, 1, 1, 1,
};
if (custom != vbar) {
if (p->custom != vbar) {
tyan_lcdm_set_char(drvthis, 1, a);
tyan_lcdm_set_char(drvthis, 2, b);
tyan_lcdm_set_char(drvthis, 3, c);
@@ -433,7 +444,7 @@ tyan_lcdm_init_vbar (Driver * drvthis)
tyan_lcdm_set_char(drvthis, 5, e);
tyan_lcdm_set_char(drvthis, 6, f);
tyan_lcdm_set_char(drvthis, 7, g);
custom = vbar;
p->custom = vbar;
}
}
@@ -443,7 +454,7 @@ tyan_lcdm_init_vbar (Driver * drvthis)
static void
tyan_lcdm_init_hbar (Driver * drvthis)
{
PrivateData *p = drvthis->private_data;
char a[] = {
0, 0, 0, 0, 0,
0, 0, 0, 0, 0,
@@ -505,14 +516,14 @@ tyan_lcdm_init_hbar (Driver * drvthis)
1, 1, 1, 1, 1,
};
if (custom != hbar) {
if (p->custom != hbar) {
tyan_lcdm_set_char(drvthis, 1, a);
tyan_lcdm_set_char(drvthis, 2, b);
tyan_lcdm_set_char(drvthis, 3, c);
tyan_lcdm_set_char(drvthis, 4, d);
tyan_lcdm_set_char(drvthis, 5, e);
tyan_lcdm_set_char(drvthis, 6, f);
custom = hbar;
p->custom = hbar;
}
}
@@ -529,10 +540,11 @@ tyan_lcdm_vbar (Driver * drvthis, int x, int y, int len, int promille, int optio
* 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;
tyan_lcdm_init_vbar(drvthis);
lib_vbar_static(drvthis, x, y, len, promille, options, cellheight, 0);
lib_vbar_static(drvthis, x, y, len, promille, options, p->cellheight, 0);
}
@@ -548,10 +560,11 @@ tyan_lcdm_hbar (Driver * drvthis, int x, int y, int len, int promille, int optio
* 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;
tyan_lcdm_init_hbar(drvthis);
lib_hbar_static(drvthis, x, y, len, promille, options, cellwidth, 0);
lib_hbar_static(drvthis, x, y, len, promille, options, p->cellwidth, 0);
}
@@ -562,6 +575,7 @@ tyan_lcdm_hbar (Driver * drvthis, int x, int y, int len, int promille, int optio
MODULE_EXPORT void
tyan_lcdm_num (Driver * drvthis, int x, int num)
{
//PrivateData *p = drvthis->private_data;
/*
char out[5];
@@ -580,6 +594,7 @@ tyan_lcdm_num (Driver * drvthis, int x, int num)
MODULE_EXPORT void
tyan_lcdm_set_char (Driver * drvthis, int n, char *dat)
{
PrivateData *p = drvthis->private_data;
unsigned char out[8];
int row, col;
@@ -588,12 +603,12 @@ tyan_lcdm_set_char (Driver * drvthis, int n, char *dat)
if (!dat)
return;
for (row = 0; row < cellheight; row++) {
for (row = 0; row < p->cellheight; row++) {
int letter = 0;
for (col = 0; col < cellwidth; col++) {
for (col = 0; col < p->cellwidth; col++) {
letter <<= 1;
letter |= (dat[(row * cellwidth) + col] > 0);
letter |= (dat[(row * p->cellwidth) + col] > 0);
/* I should remove that debug code. */
//if (dat[(row * cellheight) + col] == 0) printf(".");
//if (dat[(row * cellheight) + col] == 1) printf("+");
@@ -605,7 +620,7 @@ tyan_lcdm_set_char (Driver * drvthis, int n, char *dat)
out[row+1] = letter;
//printf(": %d\n", letter);
}
tyan_lcdm_write_str(out, (unsigned char) (0x40 + n * 8), 8);
tyan_lcdm_write_str(p->fd, out, (unsigned char) (0x40 + n * 8), 8);
}
/*
@@ -614,6 +629,7 @@ tyan_lcdm_set_char (Driver * drvthis, int n, char *dat)
MODULE_EXPORT int
tyan_lcdm_icon (Driver * drvthis, int x, int y, int icon)
{
PrivateData *p = drvthis->private_data;
char icons[8][5 * 8] = {
/* Empty Heart */
{
@@ -711,22 +727,22 @@ tyan_lcdm_icon (Driver * drvthis, int x, int y, int icon)
tyan_lcdm_chr(drvthis, x, y, 255);
break;
case ICON_HEART_FILLED:
custom = cust;
p->custom = cust;
tyan_lcdm_set_char(drvthis, 0, icons[1]);
tyan_lcdm_chr(drvthis, x, y, 0);
break;
case ICON_HEART_OPEN:
custom = cust;
p->custom = cust;
tyan_lcdm_set_char(drvthis, 0, icons[0]);
tyan_lcdm_chr(drvthis, x, y, 0);
break;
case ICON_ARROW_UP:
custom = cust;
p->custom = cust;
tyan_lcdm_set_char(drvthis, 1, icons[2]);
tyan_lcdm_chr(drvthis, x, y, 1);
break;
case ICON_ARROW_DOWN:
custom = cust;
p->custom = cust;
tyan_lcdm_set_char(drvthis, 2, icons[3]);
tyan_lcdm_chr(drvthis, x, y, 2);
break;
@@ -737,17 +753,17 @@ tyan_lcdm_icon (Driver * drvthis, int x, int y, int icon)
tyan_lcdm_chr(drvthis, x, y, 0x7E);
break;
case ICON_CHECKBOX_OFF:
custom = cust;
p->custom = cust;
tyan_lcdm_set_char(drvthis, 3, icons[4]);
tyan_lcdm_chr(drvthis, x, y, 3);
break;
case ICON_CHECKBOX_ON:
custom = cust;
p->custom = cust;
tyan_lcdm_set_char(drvthis, 4, icons[5]);
tyan_lcdm_chr(drvthis, x, y, 4);
break;
case ICON_CHECKBOX_GRAY:
custom = cust;
p->custom = cust;
tyan_lcdm_set_char(drvthis, 5, icons[6]);
tyan_lcdm_chr(drvthis, x, y, 5);
break;
@@ -755,7 +771,6 @@ tyan_lcdm_icon (Driver * drvthis, int x, int y, int icon)
return -1; /* Let the core do other icons */
}
return 0;
}
/*
@@ -764,25 +779,9 @@ tyan_lcdm_icon (Driver * drvthis, int x, int y, int icon)
MODULE_EXPORT void
tyan_lcdm_clear (Driver * drvthis)
{
memset(framebuf, ' ', width * height);
}
/*
* Hardware clears the LCD screen
*/
static void
tyan_lcdm_hardware_clear (Driver * drvthis)
{
char lcdcmd[5];
//set os selection
lcdcmd[0] = TYAN_LCDM_CMD_BEGIN;
lcdcmd[1] = 0x70;
lcdcmd[2] = 0x00;
lcdcmd[3] = 0x01;
lcdcmd[4] = TYAN_LCDM_CMD_END;
write(fd, lcdcmd, 5);
PrivateData *p = drvthis->private_data;
memset(p->framebuf, ' ', p->width * p->height);
}
/*
@@ -792,78 +791,106 @@ tyan_lcdm_hardware_clear (Driver * drvthis)
MODULE_EXPORT void
tyan_lcdm_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 >= height))
if ((y < 0) || (y >= p->height))
return;
for (i = 0; (string[i] != '\0') && (x < width); i++, x++) {
for (i = 0; (string[i] != '\0') && (x < p->width); i++, x++) {
/* Check for buffer overflows... */
if (x >= 0)
framebuf[(y * width) + x] = string[i];
p->framebuf[(y * p->width) + x] = string[i];
}
}
static
void tyan_lcdm_set_rampos(unsigned char pos)
{
char cmd_str[5];
cmd_str[0] = TYAN_LCDM_CMD_BEGIN;
cmd_str[1] = 0x70;
cmd_str[2] = 0x00;
/*
* switch mode()
*/
static void
tyan_lcdm_switch_mode(int fd)
{
char lcdcmd1[4] = { TYAN_LCDM_CMD_BEGIN, 0x73, 0x01, TYAN_LCDM_CMD_END };
char lcdcmd2[3] = { TYAN_LCDM_CMD_BEGIN, 0x6c, TYAN_LCDM_CMD_END };
//set os selection
write(fd, lcdcmd1, 4);
sleep(1);
//send "LCD Ready" cmd
write(fd, lcdcmd2, 3);
sleep(1);
}
/*
* Hardware clears the LCD screen
*/
static void
tyan_lcdm_hardware_clear(int fd)
{
char lcdcmd[5] = { TYAN_LCDM_CMD_BEGIN, 0x70, 0x00, 0x01, TYAN_LCDM_CMD_END};
//set os selection
write(fd, lcdcmd, 5);
}
static
void tyan_lcdm_set_rampos(int fd, unsigned char pos)
{
char cmd_str[5] = { TYAN_LCDM_CMD_BEGIN, 0x70, 0x00, 0x00, TYAN_LCDM_CMD_END };
cmd_str[3] = pos;
cmd_str[4] = TYAN_LCDM_CMD_END;
write(fd, cmd_str, 5);
}
static
void tyan_lcdm_write_str(unsigned char *str,unsigned char start_addr, int length)
void tyan_lcdm_write_str(int fd, unsigned char *str,unsigned char start_addr, int length)
{
//CGRAM 0x40, 0x48,....
//if Line 1: start_addr = 0x80
//if Line 2: start_addr = 0xc0
// 1<= length <=16
unsigned char cmd_str[20];
unsigned char cmd_str[20] = { TYAN_LCDM_CMD_BEGIN, 0x70, 0x02 };
tyan_lcdm_set_rampos(start_addr);
tyan_lcdm_set_rampos(fd, start_addr);
memset(cmd_str, ' ', 20);
cmd_str[0] = TYAN_LCDM_CMD_BEGIN;
cmd_str[1] = 0x70;
cmd_str[2] = 0x02;
cmd_str[19] = TYAN_LCDM_CMD_END;
memcpy(cmd_str+3, str, length);
memcpy(cmd_str+3, str, (length < 16) ? length : 16);
write(fd, cmd_str, 20);
}
#if 0
static
void tyan_lcdm_set_cursor(unsigned char start_addr, int pos){
char cmd_str[5];
void tyan_lcdm_set_cursor(int fd, unsigned char start_addr, int pos)
{
char cmd_str[5] = { TYAN_LCDM_CMD_BEGIN, 0x70, 0x00, 0x0e, TYAN_LCDM_CMD_END };
tyan_lcdm_set_rampos(pos+start_addr);
cmd_str[0] = TYAN_LCDM_CMD_BEGIN;
cmd_str[1] = 0x70;
cmd_str[2] = 0x00;
cmd_str[3] = 0x0e;
cmd_str[4] = TYAN_LCDM_CMD_END;
write(fd,cmd_str,5);
}
#endif
static
unsigned char tyan_lcdm_read_key()
unsigned char tyan_lcdm_read_key(int fd)
{
int count = 0;
char key_str[4];
memset(key_str, 0, 4);
memset(key_str, '\0', 4);
count = read(fd, key_str, 4);
if ((key_str[0] == (char) TYAN_LCDM_CMD_BEGIN)
if ((count == 4)
&& (key_str[0] == (char) TYAN_LCDM_CMD_BEGIN)
&& (key_str[1] == (char) 0x72)
&& (key_str[3] == (char) TYAN_LCDM_CMD_END)) {
return key_str[2];