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plans for plan9

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copy 2014-06-02 22:31:25 +02:00
parent 25d3c4c685
commit 7cb213f0ee
1 changed files with 14 additions and 5 deletions
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19
src/uart.js
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@ -24,6 +24,9 @@ function UART(dev, port, adapter)
fifo_control = 0,
interrupt_enable = 0,
// interrupt identification register
iir = 1,
modem_control = 0,
modem_status = 0,
@ -152,7 +155,11 @@ function UART(dev, port, adapter)
io.register_read(port | 2, function()
{
return fifo_control;
var ret = iir;
dbg_log("read interrupt identification: " + h(iir), LOG_SERIAL);
iir ^= 1;
return ret;
});
io.register_write(port | 2, function(out_byte)
{
@ -162,6 +169,7 @@ function UART(dev, port, adapter)
io.register_read(port | 3, function()
{
dbg_log("read line control: " + h(line_control), LOG_SERIAL);
return line_control;
});
io.register_write(port | 3, function(out_byte)
@ -190,23 +198,24 @@ function UART(dev, port, adapter)
line_status |= 1;
}
line_status |= 0x20;
line_status |= 0x20 | 0x40;
//dbg_log("read line status: " + h(line_status), LOG_SERIAL);
dbg_log("read line status: " + h(line_status), LOG_SERIAL);
return line_status;
});
io.register_write(port | 5, function(out_byte)
{
dbg_log("Factory test write", LOG_SERIAL);
});
io.register_read(port | 6, function()
{
//dbg_log("read modem status: " + h(modem_status), LOG_SERIAL);
dbg_log("read modem status: " + h(modem_status), LOG_SERIAL);
return modem_status;
});
io.register_write(port | 6, function(out_byte)
{
modem_status = out_byte;
dbg_log("Unkown register write (base+6)", LOG_SERIAL);
});
io.register_read(port | 7, function()