3 * Programmable Input/Output
5 * Copyright (C) 2008-2009 Pawel Dziepak
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License along
18 * with this program; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
24 #include "services/timer.h"
25 #include "manes/manec.h"
27 using namespace services
;
28 using namespace manes
;
29 using namespace resources
;
31 void pio::send_packet(const buffer
&data
) {
35 void pio::set_speed(int v
) {
36 assert("pio: too high transmission speed", v
> 1000);
44 void pio::set_dep(p
<stream
> _dep
) {
48 void pio::send_data_next() {
49 if (ptr
>= buf
.get_size()) {
51 if (!notice_user
.null())
55 dep
->write(buffer::to_mem(buf
[ptr
++]));
57 tm
->set_timer(speed
, snd_dt_nxt
);
60 bool pio::start(bool wait
, delegate
<void> notice
) {
61 tm
= manec::get()->get
<timer
>("/timer");
66 snd_dt_nxt
= delegate
<void>::method(this,&pio::send_data_next
);
69 for (int i
= 0; i
< buf
.get_size(); i
++)
70 dep
->write(buffer::to_mem(buf
[i
]));
75 if (!wait
) return true;
77 while (!ready
) __asm__("hlt");
81 void pio::register_type() {
82 manes::manec::get()->register_type
<pio
>("pio", "virtual_bus");