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runtime: refactor rtio_output_list.

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This commit is contained in:
whitequark 2016-11-23 16:35:02 +00:00
parent 79e70fa465
commit cf12a888e7
2 changed files with 12 additions and 15 deletions
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2
artiq/runtime.rs/libksupport/api.rs
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@ -102,7 +102,7 @@ static mut API: &'static [(&'static str, *const ())] = &[
api!(rtio_get_counter = ::rtio::get_counter),
api!(rtio_log),
api!(rtio_output = ::rtio::output),
api!(rtio_output_list = ::rtio::output_list),
api!(rtio_output_wide = ::rtio::output_wide),
api!(rtio_input_timestamp = ::rtio::input_timestamp),
api!(rtio_input_data = ::rtio::input_data),

25
artiq/runtime.rs/libksupport/rtio.rs
View File

@ -1,6 +1,5 @@
use board::csr;
use core::ptr::{read_volatile, write_volatile};
use core::slice;
use ::ArtiqList;
const RTIO_O_STATUS_FULL: u32 = 1;
@ -27,16 +26,16 @@ pub extern fn get_counter() -> i64 {
}
#[inline(always)]
pub unsafe fn rtio_o_data_write(w: u32) {
pub unsafe fn rtio_o_data_write(offset: usize, data: u32) {
write_volatile(
csr::rtio::O_DATA_ADDR.offset((csr::rtio::O_DATA_SIZE - 1) as isize),
w);
csr::rtio::O_DATA_ADDR.offset((csr::rtio::O_DATA_SIZE - 1 - offset) as isize),
data);
}
#[inline(always)]
pub unsafe fn rtio_i_data_read() -> u32 {
pub unsafe fn rtio_i_data_read(offset: usize) -> u32 {
read_volatile(
csr::rtio::I_DATA_ADDR.offset((csr::rtio::I_DATA_SIZE - 1) as isize))
csr::rtio::I_DATA_ADDR.offset((csr::rtio::I_DATA_SIZE - 1 - offset) as isize))
}
#[inline(never)]
@ -75,7 +74,7 @@ pub extern fn output(timestamp: i64, channel: u32, addr: u32, data: u32) {
csr::rtio::chan_sel_write(channel);
csr::rtio::o_timestamp_write(timestamp as u64);
csr::rtio::o_address_write(addr);
rtio_o_data_write(data);
rtio_o_data_write(0, data);
csr::rtio::o_we_write(1);
let status = csr::rtio::o_status_read();
if status != 0 {
@ -84,16 +83,14 @@ pub extern fn output(timestamp: i64, channel: u32, addr: u32, data: u32) {
}
}
pub extern fn output_list(timestamp: i64, channel: u32, addr: u32, list: ArtiqList<i32>) {
pub extern fn output_wide(timestamp: i64, channel: u32, addr: u32, list: ArtiqList<i32>) {
unsafe {
csr::rtio::chan_sel_write(channel);
csr::rtio::o_timestamp_write(timestamp as u64);
csr::rtio::o_address_write(addr);
let data = list.as_slice();
for i in 0..data.len() {
write_volatile(
csr::rtio::O_DATA_ADDR.offset((csr::rtio::O_DATA_SIZE - 1 - i) as isize),
data[i] as u32);
rtio_o_data_write(i, data[i] as u32)
}
csr::rtio::o_we_write(1);
let status = csr::rtio::o_status_read();
@ -154,7 +151,7 @@ pub extern fn input_data(channel: u32) -> u32 {
}
}
let data = rtio_i_data_read();
let data = rtio_i_data_read(0);
csr::rtio::i_re_write(1);
data
}
@ -171,14 +168,14 @@ pub fn log(timestamp: i64, data: &[u8]) {
word <<= 8;
word |= data[i] as u32;
if i % 4 == 0 {
rtio_o_data_write(word);
rtio_o_data_write(0, word);
csr::rtio::o_we_write(1);
word = 0;
}
}
word <<= 8;
rtio_o_data_write(word);
rtio_o_data_write(0, word);
csr::rtio::o_we_write(1);
}
}