mangavalk/lcdproc
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
b8dcc5ff2aaa5de6af68e7b37e7a26f53ebcb469
lcdproc/server/drivers/sed1330.c
T

858 lines
22 KiB
C
Raw Blame History

/*
* Driver for SED1330 graphical displays
*
* This driver drives the LCD in text mode.
* Probably the driver can easily be adapted to work for 1335 and 1336 too.
*
* Moved the delay timing code by Charles Steinkuehler to timing.h.
* Guillaume Filion <gfk@logidac.com>, December 2001
*
* This file is released under the GNU General Public License. Refer to the
* COPYING file distributed with this package.
*
* Copyright (c) 2001, Joris Robijn <joris@robijn.net
*
*
* Changelog:
*
* November 2001, Joris Robijn:
* - Created the driver
* - Parts copied from HD44780 driver
* December 2001, Joris Robijn:
* - Adapted to v0.5 API
*
*
*
* IMPORTANT: MODULES OTHER THAN G321D
* ===================================
* If you are using a module other than the G321D, beware that the software
* has not been tested. You may need to adapt the initialization parameters
* to get it working properly.
*
*
*
*
* Connections
* ===========
*
* Connections below are for the G242C, G121C and G321D displays.
* Always consult documentation about the specific display before asuming
* the connections given here are also correct for your display !
*
* Ordered by LCD pins
* LCD pin? <---> pin LPT port
* ^RESET 1 1 ^STROBE
* ^RD 2 +5V
* ^WR 3 16 ^INIT
* SEL1 4 GND
* SEL2 5 GND
* ^CS 6 GND
* A0 7 17 ^SELECT_IN
* D0 8 2 D0
* D1 9 3 D1
* D2 10 4 D2
* D3 11 5 D3
* D4 12 6 D4
* D5 13 7 D5
* D6 14 8 D6
* D7 15 9 D7
* Vdd 16 +5V
* Vss 17 GND 18..25 GND
* V0 18 potmeter
* Vlc 19 -24V
* Frame 20 GND
* 10 ^ACK
* GND 11 BUSY
* 12 PAPEREND
* 13 ^SELECT
* 14 ^LF
* 15 ^ERROR
*
* Or ordered by the LPT port pins:
* LCD pin? <---> pin LPT port
* ^RESET 1 1 ^STROBE
* 14 ^LF
* D0 8 2 D0
* 15 ^ERROR
* D1 9 3 D1
* ^WR 3 16 ^INIT
* D2 10 4 D2
* A0 7 17 ^SELECT_IN
* D3 11 5 D3
* Vss 17 GND 18..25 GND
* D4 12 6 D4
* D5 13 7 D5
* D6 14 8 D6
* D7 15 9 D7
* 10 ^ACK
* GND 11 BUSY
* 12 PAPEREND
* 13 ^SELECT
* Vdd 16 +5V
* ^RD 2 +5V
* Frame 20 GND
* SEL1 4 GND
* SEL2 5 GND
* ^CS 6 GND
* Vlc 19 -24V (not required for G242C)
* V0 18 potmeter
*
* The potmeter should be connected like this on these display modules:
*
* === GND
* |
* .-.
* | |
* | |5k
* '-'
* |
* |
* .-.10k potmeter
* | |
* | |<----------------o V0
* | |
* '-'
* |
* O Vlc (= -24V )
*
* The G242C generates -24V internally. It is available on Vlc.
*
* To generate -24 from the +5V without an external power source, you can
* use the following circuit.
*
* 5V O------+----------+ pinout:
* | | _____
* | --- 100uF | _ |
* | --- 10V | (_) | <-3
* | | |_____|
* | +--------+--------+--------+ | max |
* |5 | | | | | 724 |
* --------- === GND C - | |_____|
* | | C coil | | | |||||
* | | C 47uH | |10k | |||||.
* | |4 | - | | | |
* | MAX724 |--------------+ | | 12345
* | or | | | |
* | MAX726 |1 | | |+
* | |-----------------------+ --- 47uF
* | | | | --- 50V
* | | | | |
* --------- | - |
* |2 |3 | | | |
* | | '---, | |1k |
* --- | SB160 / \ - |
* 100nF--- | ^T^ | |
* | | | | |
* +-----+----------------+--------+--------+----O -24V out
*
*
*
*
* Config options
* ==============
*
* With the display= option you should specify what display module you have.
* Accepted values are:
* display=G121C
* display=G242C
* display=G321D
*
* The port= value should be set to the LPT port address that the LCD is
* connected to. Examples:
* port=0x378
* port=0x278
* port=0x3BC
*
*/
#include "lcd.h"
#include "sed1330.h"
#include "port.h"
#include "lpt-port.h"
#include "report.h"
//#include "configfile.h"
#include "timing.h"
#define uPause timing_uPause
#include <string.h>
#include <errno.h>
#include <stdlib.h>
// LPT lines
#define A0 SEL
#define nRESET STRB
#define nWR INIT
// Command definitions
#define CMD_SYSTEM_SET 0x40
#define CMD_SLEEP_IN 0x53
#define CMD_DISP_DIS 0x58
#define CMD_DISP_EN 0x59
#define CMD_SCROLL 0x44
#define CMD_CSR_FORM 0x5D
#define CMD_CGRAM_ADR 0x5C
#define CMD_CSR_DIR_R 0x4C
#define CMD_CSR_DIR_L 0x4D
#define CMD_CSR_DIR_U 0x4E
#define CMD_CSR_DIR_D 0x4F
#define CMD_HDOT_SCR 0x5A
#define CMD_OVLAY 0x5B
#define CMD_CSRW 0x46
#define CMD_CSRR 0x47
#define CMD_MWRITE 0x42
#define CMD_MREAD 0x43
// Data definitions
#define MAXKEYS 8
#define TYPE_G321D 1
#define TYPE_G121C 2
#define TYPE_G242C 3
#define SCR1_L 0x00 // Memory locations
#define SCR1_H 0x00
#define SCR2_L 0x00
#define SCR2_H 0x06
#define CHARWIDTH 6
#define CHARHEIGHT 10
#define PIXELSPERBYTE CHARWIDTH
// The above should be (CHARWIDTH/2) if CHARWIDTH > 8
typedef struct p {
int type;
int port;
char * keymap[MAXKEYS];
char * framebuf_text;
char * lcd_contents_text;
char * framebuf_graph;
char * lcd_contents_graph;
int width, height;
//int cellwidth, cellheight;
int graph_width, graph_height;
int cursor_x, cursor_y;
char cursor_state;
int bytesperline;
} PrivateData;
// Vars for the server core
MODULE_EXPORT char * api_version = API_VERSION;
MODULE_EXPORT int stay_in_foreground = 1;
MODULE_EXPORT int supports_multiple = 1; // yes, we have no global variables (except for constants)
MODULE_EXPORT char *symbol_prefix = "sed1330_";
// Local functions
void uPause (int usecs);
void sed1330_command( PrivateData * p, char command, int datacount, char * data );
void sed1330_update_cursor( PrivateData * p );
void sed1330_rect( PrivateData * p, int x1, int y1, int x2, int y2, char pattern );
void sed1330_line ( PrivateData * p, int x1, int y1, int x2, int y2, char pattern );
inline void sed1330_set_pixel( PrivateData * p, int x, int y, int value );
/////////////////////////////////////////////////////////////////
// Init the driver and display
//
MODULE_EXPORT int
sed1330_init( Driver * drvthis, char *args )
{
char * s;
int port, i;
PrivateData * p;
debug( RPT_INFO, "SED1330: init(%p,%s)", drvthis, args );
// Alocate and store private p
p = (PrivateData *) malloc( sizeof(PrivateData) );
if( ! p )
return -1;
if( drvthis->store_private_ptr( drvthis, p ) )
return -1;
// Clear keymap
memset( p->keymap, 0, sizeof(p->keymap) );
// READ THE CONFIG FILE
// Port
port = drvthis->config_get_int( drvthis->name, "port", 0, 0x278 );
p->port = port;
// Type
s = drvthis->config_get_string( drvthis->name, "type", 0, NULL );
if( !s ) {
report( RPT_ERR, "SED1330: you need to specify the display type" );
return -1;
} else if( strcmp( s, "G321D" ) == 0 ) {
p->type = TYPE_G321D;
p->graph_width = 320;
p->graph_height = 200;
} else if( strcmp( s, "G121C" ) == 0 ) {
p->type = TYPE_G121C;
p->graph_width = 128;
p->graph_height = 128;
} else if( strcmp( s, "G242C" ) == 0 ) {
p->type = TYPE_G242C;
p->graph_width = 240;
p->graph_height = 128;
} else {
report( RPT_ERR, "SED1330: Unknown display type: %s", s );
return -1;
}
p->width = p->graph_width / CHARWIDTH;
p->height = p->graph_height / CHARHEIGHT;
p->bytesperline = (p->graph_width - 1 ) / CHARWIDTH + 1;
report( RPT_INFO, "SED1330: Using LCD type: %s", s );
report( RPT_INFO, "SED1330: Text size: %dx%d", p->width, p->height );
// Keymap
for( i=0; i<MAXKEYS; i++ ) {
char buf[8];
sprintf( buf, "key_%1d", i );
s = drvthis->config_get_string( drvthis->name, buf, 0, NULL );
if( s ) {
p->keymap[i] = (char *) malloc( strlen(s)+1 );
strcpy( p->keymap[i], s );
report( RPT_INFO, "SED1330: Key %d: \"%s\"", i, s );
} else {
p->keymap[i] = ""; // Pointing to an constant empty string
}
}
// Init cursor p
p->cursor_x = 1;
p->cursor_y = 1;
p->cursor_state = CURSOR_OFF;
// Allocate framebuffer
p->framebuf_text = (unsigned char *) malloc( p->bytesperline * p->height );
if( ! p->framebuf_text )
return -1;
memset( p->framebuf_text, ' ', p->bytesperline * p->height);
p->lcd_contents_text = (unsigned char *) malloc( p->bytesperline * p->height );
if( ! p->lcd_contents_text )
return -1;
memset( p->lcd_contents_text, 0, p->bytesperline * p->height);
p->framebuf_graph = (unsigned char *) malloc( p->bytesperline * p->graph_height );
if( ! p->framebuf_graph )
return -1;
memset( p->framebuf_graph, 0, p->bytesperline * p->graph_height );
p->lcd_contents_graph = (unsigned char *) malloc( p->bytesperline * p->graph_height );
if( ! p->lcd_contents_graph )
return -1;
memset( p->lcd_contents_graph, 0xFF, p->bytesperline * p->graph_height );
// Arrange for access to port
debug( RPT_DEBUG, "SED1330: getting port access" );
port_access(p->port);
port_access(p->port+1);
port_access(p->port+2);
if (timing_init() == -1)
return -1;
// INITIALIZE THE LCD
// End reset-state
debug( RPT_DEBUG, "SED1330: initializing LCD" );
port_out( port+2, (nWR) ^ OUTMASK ); // raise ^RD and ^WR
port_out( port+2, (nRESET|nWR) ^ OUTMASK ); // lower RESET
uPause( 200 );
port_out( port+2, (nWR) ^ OUTMASK ); // raise RESET
uPause( 200 );
port_out( port+2, (nRESET|nWR) ^ OUTMASK ); // lower RESET
uPause( 3000 );
switch( p->type ) {
case TYPE_G321D:
sed1330_command( p, CMD_SYSTEM_SET, 8, ((char[8]) {0x30,0x80+CHARWIDTH-1,CHARHEIGHT-1,0x34,0x38,0xC7,0x36,0x00}) ); // Set textmode 53x20
sed1330_command( p, CMD_SCROLL, 10, ((char[6]) {SCR1_L,SCR1_H,0xC7,SCR2_L,SCR2_H,0xC7}) ); // screen1 and screen2 memory locations
break;
case TYPE_G121C:
sed1330_command( p, CMD_SYSTEM_SET, 8, ((char[8]) {0x30,0x80+CHARWIDTH-1,CHARHEIGHT-1,0x14,0x58,0x7F,0x16,0x00}) ); // Set textmode 21x12
sed1330_command( p, CMD_SCROLL, 10, ((char[6]) {SCR1_L,SCR1_H,0xC7,SCR2_L,SCR2_H,0xC7}) ); // screen1 and screen2 memory locations
break;
case TYPE_G242C:
sed1330_command( p, CMD_SYSTEM_SET, 8, ((char[8]) {0x30,0x80+CHARWIDTH-1,CHARHEIGHT-1,0x27,0x58,0x7F,0x29,0x00}) ); // Set textmode 40x12
sed1330_command( p, CMD_SCROLL, 10, ((char[6]) {SCR1_L,SCR1_H,0xC7,SCR2_L,SCR2_H,0xC7}) ); // screen1 and screen2 memory locations
break;
default:
return -1;
}
sed1330_command( p, CMD_CSR_FORM, 2, ((char[2]) {0x04,0x07}) ); // 5x8 cursor
sed1330_command( p, CMD_HDOT_SCR, 1, ((char[1]) {0x00}) ); // horizontal pixel shift=0
sed1330_command( p, CMD_OVLAY, 1, ((char[1]) {0x01}) ); // XOR mode, screen1 text, screen3 text (screen2 and screen4 are always graph)
sed1330_command( p, CMD_DISP_DIS, 1, ((char[1]) {0x17}) ); // display off, set cursor slow, screen1 on, screen2 on, screen3 off
sed1330_command( p, CMD_CSR_DIR_R, 0, NULL ); // cursor move right
sed1330_flush( drvthis ); // Clear the contents of the LCD
sed1330_command( p, CMD_DISP_EN, 0, NULL ); // And display on
return 0;
}
/////////////////////////////////////////////////////////////////
// Send a command and accompanying p
// INTERNAL
//
void
sed1330_command( PrivateData * p, char command, int datacount, char * data )
{
int i;
int port = p->port;
port_out( port+2, (nRESET|nWR|A0) ^ OUTMASK ); // set A0 to indicate command
port_out( port, command ); // set up p
//uPause( 1 );
port_out( port+2, (nRESET|A0) ^ OUTMASK ); // activate ^WR
uPause( 1 );
port_out( port+2, (nRESET|nWR|A0) ^ OUTMASK ); // deactivate ^WR again
port_out( port+2, (nRESET|nWR) ^ OUTMASK ); // clear A0 to indicate p
for( i=0; i<datacount; i ++ ) {
port_out( port, data[i] ); // set up data
//uPause( 1 );
port_out( port+2, (nRESET) ^ OUTMASK ); // activate ^WR
uPause( 1 );
port_out( port+2, (nRESET|nWR) ^ OUTMASK ); // deactivate ^WR again
}
}
/////////////////////////////////////////////////////////////////
// Update cursor showing
// INTERNAL
//
void sed1330_update_cursor( PrivateData * p )
{
int cursor_pos;
char csrloc[2];
char csrform[2];
char disp_en;
char fc = 0; // named after FC register in SED1330
cursor_pos = (p->cursor_y-1) * p->bytesperline + (p->cursor_x-1) + 256 * SCR1_H + SCR1_L;
csrloc[0] = cursor_pos % 256;
csrloc[1] = cursor_pos / 256;
switch( p->cursor_state ) {
case CURSOR_OFF: // Off
fc = 0;
csrform[0] = 0x04;
csrform[1] = 0x07;
break;
case CURSOR_DEFAULT_ON:
case CURSOR_UNDER: // Underlined
fc = 2;
csrform[0] = 0x04;
csrform[1] = 0x07;
break;
case CURSOR_BLOCK: // Block
fc = 2;
csrform[0] = 0x84;
csrform[1] = 0x07;
break;
}
disp_en = 0x14 + fc;
sed1330_command( p, CMD_CSRW, 2, csrloc );
sed1330_command( p, CMD_DISP_EN, 1, &disp_en ); // set cursor on/off
sed1330_command( p, CMD_CSR_FORM, 2, csrform ); // set cursor shape
}
/////////////////////////////////////////////////////////////////
// Close the display
//
MODULE_EXPORT void
sed1330_close( Driver * drvthis )
{
PrivateData * p = drvthis->private_data;
debug( RPT_INFO, "sed1330_close" );
free( p );
}
/////////////////////////////////////////////////////////////////
// Returns the display width
//
MODULE_EXPORT int
sed1330_width( Driver * drvthis )
{
PrivateData * p = drvthis->private_data;
return p->width;
}
/////////////////////////////////////////////////////////////////
// Returns the display height
//
MODULE_EXPORT int
sed1330_height( Driver * drvthis )
{
PrivateData * p = drvthis->private_data;
return p->height;
}
/////////////////////////////////////////////////////////////////
// Clear the framebuffer
//
MODULE_EXPORT void
sed1330_clear( Driver * drvthis )
{
PrivateData * p = drvthis->private_data;
debug( RPT_INFO, "sed1330_clear" );
memset( p->framebuf_text, ' ', p->bytesperline * p->height);
memset( p->framebuf_graph, 0, p->bytesperline * p->graph_height );
}
/////////////////////////////////////////////////////////////////
// Place a string in the framebuffer
//
MODULE_EXPORT void
sed1330_string( Driver * drvthis, int x, int y, char *str )
{
PrivateData * p = drvthis->private_data;
char * start;
int len;
debug( RPT_INFO, "sed1330_string x=%d y=%d s=\"%s\"", x, y, str );
if( y > p->height ) {
return; // outside framebuf_textfer
}
// Calculate where to start and length to write
start = p->framebuf_text + (y-1)*p->bytesperline + (x-1);
len = strlen(str);
if( p->width <= len ) {
len = p->width - x + 1;
}
memcpy( start, str, len );
}
/////////////////////////////////////////////////////////////////
// Place a character in the framebuffer
//
MODULE_EXPORT void
sed1330_chr( Driver * drvthis, int x, int y, char c )
{
PrivateData * p = drvthis->private_data;
debug( RPT_INFO, "sed1330_chr x=%d y=%d c='%c'", x, y, c );
if( y > p->height || x > p->width ) {
return; // outside framebuf_textfer
}
p->framebuf_text[(y-1)*p->bytesperline + (x-1)] = c;
}
/////////////////////////////////////////////////////////////////
// Flush the framebuffer to the display
//
MODULE_EXPORT void
sed1330_flush( Driver * drvthis )
{
PrivateData * p = drvthis->private_data;
unsigned int pos, start_pos, nr_equal, fblen, len, cursor_pos;
char csrloc[2];
debug( RPT_INFO, "sed1330_flush" );
sed1330_command( p, CMD_DISP_EN, 1, ((char[1]) {0x16}) ); // cursor off
fblen = p->bytesperline * p->height;
for( pos=0; pos<fblen; ) {
start_pos = pos;
for( nr_equal=0; pos<fblen && nr_equal<4; pos++ ) {
if( p->lcd_contents_text[pos] == p->framebuf_text[pos] ) {
nr_equal ++;
} else {
nr_equal = 0;
}
}
len = pos - start_pos - nr_equal;
if( len > 0 ) {
cursor_pos = start_pos + 256 * SCR1_H + SCR1_L;
csrloc[0] = cursor_pos % 256;
csrloc[1] = cursor_pos / 256;
sed1330_command( p, CMD_CSRW, 2, csrloc );
sed1330_command( p, CMD_MWRITE, len, p->framebuf_text + start_pos );
memcpy( p->lcd_contents_text + start_pos, p->framebuf_text + start_pos, len );
}
}
fblen = p->bytesperline * p->graph_height;
for( pos=0; pos<fblen; ) {
start_pos = pos;
for( nr_equal=0; pos<fblen && nr_equal<4; pos++ ) {
if( p->lcd_contents_graph[pos] == p->framebuf_graph[pos] ) {
nr_equal ++;
} else {
nr_equal = 0;
}
}
len = pos - start_pos - nr_equal;
if( len > 0 ) {
cursor_pos = start_pos + 256 * SCR2_H + SCR2_L;
csrloc[0] = cursor_pos % 256;
csrloc[1] = cursor_pos / 256;
sed1330_command( p, CMD_CSRW, 2, csrloc );
sed1330_command( p, CMD_MWRITE, len, p->framebuf_graph + start_pos );
memcpy( p->lcd_contents_graph + start_pos, p->framebuf_graph + start_pos, len );
}
}
sed1330_update_cursor( p );
}
/////////////////////////////////////////////////////////////////
// Let the cursor go to a certain location
//
MODULE_EXPORT void
sed1330_cursor( Driver * drvthis, int x, int y, char state )
{
PrivateData * p = drvthis->private_data;
debug( RPT_INFO, "sed1330_cursor x=%d y=%d state='%c'", x, y, state );
p->cursor_x = x;
p->cursor_y = y;
p->cursor_state = state;
sed1330_update_cursor( p );
}
/////////////////////////////////////////////////////////////////
// Sets the backlight on or off
//
MODULE_EXPORT void
sed1330_backlight( Driver * drvthis, int on )
{
//PrivateData * p = drvthis->private_data;
debug( RPT_INFO, "sed1330_backlight on='%c'", on );
// unimplemented
}
/////////////////////////////////////////////////////////////////
// Draws a rectangle
// INTERNAL
//
void
sed1330_rect ( PrivateData * p, int x1, int y1, int x2, int y2, char pattern )
/* pattern: 0=clear 1=set later more patterns ? */
{
int x, y;
// Swap coordinates if needed
if( x1>x2 ) {
int swap;
swap=x1;
x1=x2;
x2=swap;
}
if( y1>y2 ) {
int swap;
swap=y1;
y1=y2;
y2=swap;
}
for( x=x1; x<=x2; x++ ) {
for( y=y1; y<=y2; y++ ) {
sed1330_set_pixel( p, x, y, pattern );
}
}
}
/////////////////////////////////////////////////////////////////
// Draws a line
// INTERNAL
//
void
sed1330_line ( PrivateData * p, int x1, int y1, int x2, int y2, char pattern )
/* pattern: 0=clear 1=set later more patterns ? */
{
int x, y;
int more_x;
/* Swap coordinates if needed. We want to draw the line from left
* to right.
*/
if( x1>x2 ) {
int swap;
swap=x1; x1=x2; x2=swap;
swap=y1; y1=y2; y2=swap;
}
/* Draw from left to right... */
more_x = 1;
for( x=x1, y=y1; x<=x2; x++ ) {
int more_y = 1; /* always draw one pixel */
while( more_y ) {
/* set the pixel */
sed1330_set_pixel( p, x, y, pattern );
/* Check what we need to do next */
if( y1 < y2 ) {
more_y = (y<=y2);
if( x1 != x2 ) {
more_y &= ((float)y+0.5-y1) < ((float) x+0.5-x1) * (y2-y1) / ((float) x2-x1) ;
}
} else {
more_y = (y>=y2);
if( x1 != x2 ) {
more_y &= ((float)y+0.5-y1) > ((float) x+0.5-x1) * (y2-y1) / ((float) x2-x1) ;
}
}
/* Increment y if we should draw a other pixel for this x value */
if( more_y ) {
if( y1 < y2 ) {
y ++;
} else {
y --;
}
}
}
}
}
/////////////////////////////////////////////////////////////////
// Sets a specified pixel
// INTERNAL
//
inline void
sed1330_set_pixel( PrivateData * p, int x, int y, int value )
/* x, y are graph LCD coordinates, 0-based */
/* value: 0=clear 1=set */
{
unsigned int bytepos;
char bitmask;
bytepos = y*p->bytesperline + x/PIXELSPERBYTE;
bitmask = 0x80 >> (x % PIXELSPERBYTE);
if( value ) {
p->framebuf_graph[bytepos] |= bitmask; /* set it */
} else {
p->framebuf_graph[bytepos] &= ~bitmask; /* clear it */
}
}
/////////////////////////////////////////////////////////////////
// Draws a vertical bar at the bottom
//
MODULE_EXPORT void
sed1330_vbar( Driver * drvthis, int x, int y, int len, int promille, int pattern )
{
PrivateData * p = drvthis->private_data;
debug( RPT_INFO, "sed1330_vbar x=%d len=%d", x, len );
sed1330_rect ( p, (x-1) * CHARWIDTH, y * CHARHEIGHT, x * CHARWIDTH - 1, y * CHARHEIGHT - (long) len * CHARHEIGHT * promille / 1000 - 1, 1 );
}
/////////////////////////////////////////////////////////////////
// Draws a horizontal bar to the right (len=pos)
// or to the left (len=neg)
//
MODULE_EXPORT void
sed1330_hbar( Driver * drvthis, int x, int y, int len, int promille, int pattern )
{
PrivateData * p = drvthis->private_data;
debug( RPT_INFO, "sed1330_hbar x=%d y=%d len=%d", x, y, len );
sed1330_rect ( p, x * CHARWIDTH, (y-1) * CHARHEIGHT, x * CHARWIDTH + (long) len * CHARWIDTH * promille / 1000 - 1, y * CHARHEIGHT - 1, 1 );
}
/////////////////////////////////////////////////////////////////
// Writes a big number.
//
MODULE_EXPORT void
sed1330_num( Driver * drvthis, int x, int num )
{
//PrivateData * p = drvthis->private_data;
debug( RPT_INFO, "sed1330_bignum x=%d num=%d", x, num );
}
/////////////////////////////////////////////////////////////
// Does the heartbeat...
// Or in fact a bouncing ball :)
//
MODULE_EXPORT void
sed1330_heartbeat( Driver * drvthis, int type )
{
PrivateData * p = drvthis->private_data;
static int timer = 0;
int pos;
//int whichIcon;
int n;
//char heartdata[2][CHARHEIGHT] = {
// { 0xFF, 0xFF, 0xAF, 0x07, 0x8F, 0xDF, 0xFF, 0xFF, 0x00, 0x00 },
// { 0xFF, 0xAF, 0x07, 0x07, 0x07, 0x8F, 0xDF, 0xFF, 0x00, 0x00 }
//};
char bouncing_ball[8][CHARHEIGHT] = {
{ 0xFF, 0xFF, 0xFF, 0xFF, 0xCF, 0x87, 0x87, 0xCF, 0x00, 0x00 },
{ 0xFF, 0xFF, 0xCF, 0x87, 0x87, 0xCF, 0xFF, 0xFF, 0x00, 0x00 },
{ 0xFF, 0xCF, 0x87, 0x87, 0xCF, 0xFF, 0xFF, 0xFF, 0x00, 0x00 },
{ 0xFF, 0x87, 0x87, 0x87, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00 },
{ 0xCF, 0x87, 0x87, 0xCF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00 },
{ 0xFF, 0x87, 0x87, 0x87, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00 },
{ 0xFF, 0xCF, 0x87, 0x87, 0xCF, 0xFF, 0xFF, 0xFF, 0x00, 0x00 },
{ 0xFF, 0xFF, 0xCF, 0x87, 0x87, 0xCF, 0xFF, 0xFF, 0x00, 0x00 },
};
report( RPT_INFO, "sed1330_heartbeat type=%d", type );
p->framebuf_text[p->width-1] = ' ';
//whichIcon = (! ((timer + 4) & 5));
pos = p->width - 1;
for( n=0; n<CHARHEIGHT; n++ ) {
//p->framebuf_graph[pos] = heartdata[whichIcon][n];
p->framebuf_graph[pos] = bouncing_ball[timer][n];
pos += p->bytesperline;
}
timer++;
timer %= 8;
}
Reference in New Issue View Git Blame Copy Permalink