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serial: open a null device if the CharDriverState argument is null

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Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6366 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aurel32 2009-01-18 14:28:10 +00:00
parent ceecf1d158
commit b47543c4f0
1 changed files with 3 additions and 5 deletions
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8
hw/serial.c
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@ -711,7 +711,7 @@ static void serial_init_core(SerialState *s, qemu_irq irq, int baudbase,
{
s->irq = irq;
s->baudbase = baudbase;
s->chr = chr;
s->chr = chr ?: qemu_chr_open("null", "null", NULL);
s->modem_status_poll = qemu_new_timer(vm_clock, (QEMUTimerCB *) serial_update_msl, s);
@ -721,6 +721,8 @@ static void serial_init_core(SerialState *s, qemu_irq irq, int baudbase,
qemu_register_reset(serial_reset, s);
serial_reset(s);
qemu_chr_add_handlers(s->chr, serial_can_receive1, serial_receive1,
serial_event, s);
}
/* If fd is zero, it means that the serial device uses the console */
@ -739,8 +741,6 @@ SerialState *serial_init(int base, qemu_irq irq, int baudbase,
register_ioport_write(base, 8, 1, serial_ioport_write, s);
register_ioport_read(base, 8, 1, serial_ioport_read, s);
qemu_chr_add_handlers(chr, serial_can_receive1, serial_receive1,
serial_event, s);
return s;
}
@ -837,8 +837,6 @@ SerialState *serial_mm_init (target_phys_addr_t base, int it_shift,
serial_mm_write, s);
cpu_register_physical_memory(base, 8 << it_shift, s_io_memory);
}
qemu_chr_add_handlers(chr, serial_can_receive1, serial_receive1,
serial_event, s);
serial_update_msl(s);
return s;
}