mangavalk/lcdproc
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Better hardware IO functions

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This commit is contained in:
themythos
2003-03-13 19:24:56 +00:00
parent 7535579cf6
commit c2d3e7e035
1 changed files with 57 additions and 31 deletions
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server/drivers/t6963.c
+57 -31
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@@ -52,8 +52,8 @@ static int width;
static int height;
static int cellwidth;
static int cellheight;
static char bidirectLPT;
static char graphicON;
static short bidirectLPT;
static short graphicON;
// Vars for the server core
MODULE_EXPORT char *api_version = API_VERSION;
@@ -104,9 +104,9 @@ t6963_init (Driver *drvthis, char *args)
report (RPT_WARNING, "T6963_init: Port value must be between 0x200 and 0x400. Using default value.\n");
}
/* ---------------------------- Is ECP mode on ----------------------------------*/
bidirectLPT = drvthis->config_get_bool ( drvthis->name, "ECPlpt", 0, 0 );
bidirectLPT = drvthis->config_get_bool ( drvthis->name, "ECPlpt", 0, 1 );
/* ---------------------------- Use graphic -------------------------------------*/
graphicON = drvthis->config_get_bool ( drvthis->name, "graphic", 0, 0 );
graphicON = drvthis->config_get_bool ( drvthis->name, "graphic", 0, 0 );
/* -- Get permission to parallel port --------------------------------------------*/
@@ -167,19 +167,24 @@ t6963_init (Driver *drvthis, char *args)
/* - Test ECP mode -*/
if(bidirectLPT == 1) {
debug (RPT_DEBUG, "T6963: Testing ECP mode...");
i=0; ecp_input=0;
debug (RPT_WARNING, "T6963: Testing ECP mode...");
i=0; ecp_input=0;
T6963_DATAIN;
do {
i++;
t6963_low_set_control(1, 0, 1, -1);
t6963_low_set_control(1, 1, 1, 1); // wr, ce, cd, rd
t6963_low_set_control(1, 0, 1, 0);
t6963_low_set_control(1, 0, 1, 0);
t6963_low_set_control(1, 0, 1, 0);
ecp_input = port_in(T6963_DATA_PORT);
t6963_low_set_control(1, 0, 1, -1);
} while (i < 50000 && (ecp_input & 3)!=3);
t6963_low_set_control(1, 1, 1, 1);
} while (i < 100 && (ecp_input & 0x03)!=0x03);
T6963_DATAOUT;
if (i >= 50000) debug(RPT_WARNING, "T6963: ECP mode not working!\n -> is now disabled\n");
else debug(RPT_DEBUG, "T6963: working!");
if (i >= 100) {
debug(RPT_WARNING, "T6963: ECP mode not working!\n -> is now disabled (STA0: %i, STA1: %i\n", ecp_input & 1, ecp_input & 2);
bidirectLPT = 0;
}
else debug(RPT_WARNING, "T6963: working!");
}
debug (RPT_DEBUG, "T6963: set graphic/text home adress and area");
@@ -257,8 +262,8 @@ t6963_height (Driver *drvthis)
MODULE_EXPORT void
t6963_clear (Driver *drvthis)
{
debug (RPT_DEBUG, "Clearing Display of size %i x %i\n", width, 6);
memset (t6963_display_buffer1, ' ', width * 6);
debug (RPT_DEBUG, "Clearing Display of size %i x %i\n", width, height);
memset (t6963_display_buffer1, ' ', width * height);
debug (RPT_DEBUG, "Done\n");
}
@@ -286,8 +291,8 @@ t6963_flush (Driver *drvthis)
for (i = 0; i < (width * height); i++)
{
debug (RPT_DEBUG, "%i%i|", t6963_display_buffer1[i], t6963_display_buffer2[i]);
if (t6963_display_buffer1[i] != t6963_display_buffer2[i] || bidirectLPT == 0)
// debug (RPT_DEBUG, "%i%i|", t6963_display_buffer1[i], t6963_display_buffer2[i]);
if (t6963_display_buffer1[i] != t6963_display_buffer2[i])
{
t6963_low_command_word(SET_ADDRESS_POINTER, TEXT_BASE + i);
t6963_low_command_byte(DATA_WRITE, t6963_display_buffer1[i]);
@@ -310,8 +315,7 @@ t6963_string (Driver *drvthis, int x, int y, char string[])
x -= 1; // Convert 1-based coords to 0-based...
y -= 1;
// t6963_low_command_word(SET_ADDRESS_POINTER,TEXT_BASE+POSITION(x,y));
if(y * width + x + strlen(string) <= width * 6);
if(y * width + x + strlen(string) <= width * height);
memcpy(&t6963_display_buffer1[y * width + x], string, strlen(string));
}
@@ -326,7 +330,7 @@ t6963_chr (Driver *drvthis, int x, int y, char c)
debug (RPT_DEBUG, "Char out\n");
y--;
x--;
if ((y * width) + x <= (width * 6))
if ((y * width) + x <= (width * height))
t6963_display_buffer1[(y * width) + x] = c;
}
@@ -443,31 +447,47 @@ t6963_low_dsp_ready (void)
int i = 0;
int input;
T6963_DATAIN;
if(bidirectLPT == 1) {
T6963_DATAIN;
do {
i++;
t6963_low_set_control(1, 0, 1, -1);
/* t6963_low_set_control(1, 0, 1, -1);
t6963_low_set_control(1, 0, 1, 0);
input = port_in(T6963_DATA_PORT);
t6963_low_set_control(1, 0, 1, -1);
} while (i < 50000 && (input & 3)!=3);
T6963_DATAOUT;
t6963_low_set_control(1, 0, 1, -1); */
t6963_low_set_control(1, 1, 1, 1);
t6963_low_set_control(1, 0, 1, 0);
t6963_low_set_control(1, 0, 1, 0);
t6963_low_set_control(1, 0, 1, 0);
// tacc max 150ns
input = port_in(T6963_DATA_PORT);
t6963_low_set_control(1, 1, 1, 1);
} while (i < 100 && (input & 3)!=3);
} else {
for(i=0; i<3; i++)
port_out(0x80, 0x00); /* wait 1ms */
}
// for(i=0; i<3; i++)
t6963_low_set_control(1, 1, 1, 1);
t6963_low_set_control(1, 0, 1, 0);
t6963_low_set_control(1, 1, 1, 1);
port_out(0x80, 0x00); // wait 1ms
}
T6963_DATAOUT;
}
void
t6963_low_data (u8 byte)
{
t6963_low_dsp_ready();
t6963_low_set_control(1, 1, 0, 1); // CD down (data)
t6963_low_set_control(0, 0, 0, 1); // CE & WR down
port_out(T6963_DATA_PORT, byte); // present data
port_out(0x80, 0x00);
t6963_low_set_control(1, 1, 1, 1); // all up again
port_out(T6963_DATA_PORT, byte); // write value to data port
/* port_out(T6963_DATA_PORT, byte); // write value to data port
t6963_low_set_control(1, 1, 0, 1);
t6963_low_set_control(0, 0, 0, 1);
t6963_low_set_control(1, 1, 1, 1);
t6963_low_set_control(1, 1, 1, 1); */
}
void
@@ -475,11 +495,17 @@ t6963_low_command (u8 byte)
{
t6963_low_dsp_ready();
t6963_low_set_control(1, 1, 1, 1); // CD up (command)
t6963_low_set_control(0, 0, 1, 1); // CE & WR down
port_out(T6963_DATA_PORT, byte); // present data to LCD on PC's port pins
port_out(0x80, 0x00);
t6963_low_set_control(1, 1, 0, 1); // CE & WR up, CD down
/*
port_out(T6963_DATA_PORT, byte); // present data to LCD on PC's port pins
t6963_low_set_control(1, 1, 1, 1);
t6963_low_set_control(0, 0, 1, 1);
t6963_low_set_control(1, 1, 0, 1);
t6963_low_set_control(1, 1, 0, 1); */
}
void
@@ -527,4 +553,4 @@ t6963_swap_buffers ()
t6963_display_buffer1 = t6963_display_buffer2;
t6963_display_buffer2 = tmp_buffer;
tmp_buffer = NULL;
}
}