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runtime: fix Rust types in RTIO 

Previous code assumed all RTIO registers were u32, but this was changed
by misoc c5edcd08.
This commit is contained in:
Sebastien Bourdeauducq 2017-08-31 13:42:32 +08:00
parent 7fe5d737dd
commit 264d5fde83
1 changed files with 15 additions and 15 deletions
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30
artiq/firmware/ksupport/rtio.rs
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@ -4,12 +4,12 @@ use board::csr;
use ::send; use ::send;
use kernel_proto::*; use kernel_proto::*;
pub const RTIO_O_STATUS_WAIT: u32 = 1; pub const RTIO_O_STATUS_WAIT: u8 = 1;
pub const RTIO_O_STATUS_UNDERFLOW: u32 = 2; pub const RTIO_O_STATUS_UNDERFLOW: u8 = 2;
pub const RTIO_O_STATUS_SEQUENCE_ERROR: u32 = 4; pub const RTIO_O_STATUS_SEQUENCE_ERROR: u8 = 4;
pub const RTIO_I_STATUS_WAIT_EVENT: u32 = 1; pub const RTIO_I_STATUS_WAIT_EVENT: u8 = 1;
pub const RTIO_I_STATUS_OVERFLOW: u32 = 2; pub const RTIO_I_STATUS_OVERFLOW: u8 = 2;
pub const RTIO_I_STATUS_WAIT_STATUS: u32 = 4; pub const RTIO_I_STATUS_WAIT_STATUS: u8 = 4;
pub extern fn init() { pub extern fn init() {
send(&RtioInitRequest); send(&RtioInitRequest);
@ -36,7 +36,7 @@ pub unsafe fn rtio_i_data_read(offset: usize) -> u32 {
} }
#[inline(never)] #[inline(never)]
unsafe fn process_exceptional_status(timestamp: i64, channel: i32, status: u32) { unsafe fn process_exceptional_status(timestamp: i64, channel: i32, status: u8) {
if status & RTIO_O_STATUS_WAIT != 0 { if status & RTIO_O_STATUS_WAIT != 0 {
while csr::rtio::o_status_read() & RTIO_O_STATUS_WAIT != 0 {} while csr::rtio::o_status_read() & RTIO_O_STATUS_WAIT != 0 {}
} }
@ -54,11 +54,11 @@ unsafe fn process_exceptional_status(timestamp: i64, channel: i32, status: u32)
pub extern fn output(timestamp: i64, channel: i32, addr: i32, data: i32) { pub extern fn output(timestamp: i64, channel: i32, addr: i32, data: i32) {
unsafe { unsafe {
csr::rtio::chan_sel_write(channel as u32); csr::rtio::chan_sel_write(channel as _);
// writing timestamp clears o_data // writing timestamp clears o_data
csr::rtio::timestamp_write(timestamp as u64); csr::rtio::timestamp_write(timestamp as u64);
csr::rtio::o_address_write(addr as u32); csr::rtio::o_address_write(addr as _);
rtio_o_data_write(0, data as u32); rtio_o_data_write(0, data as _);
csr::rtio::o_we_write(1); csr::rtio::o_we_write(1);
let status = csr::rtio::o_status_read(); let status = csr::rtio::o_status_read();
if status != 0 { if status != 0 {
@ -69,12 +69,12 @@ pub extern fn output(timestamp: i64, channel: i32, addr: i32, data: i32) {
pub extern fn output_wide(timestamp: i64, channel: i32, addr: i32, data: CSlice<i32>) { pub extern fn output_wide(timestamp: i64, channel: i32, addr: i32, data: CSlice<i32>) {
unsafe { unsafe {
csr::rtio::chan_sel_write(channel as u32); csr::rtio::chan_sel_write(channel as _);
// writing timestamp clears o_data // writing timestamp clears o_data
csr::rtio::timestamp_write(timestamp as u64); csr::rtio::timestamp_write(timestamp as u64);
csr::rtio::o_address_write(addr as u32); csr::rtio::o_address_write(addr as _);
for i in 0..data.len() { for i in 0..data.len() {
rtio_o_data_write(i, data[i] as u32) rtio_o_data_write(i, data[i] as _)
} }
csr::rtio::o_we_write(1); csr::rtio::o_we_write(1);
let status = csr::rtio::o_status_read(); let status = csr::rtio::o_status_read();
@ -86,7 +86,7 @@ pub extern fn output_wide(timestamp: i64, channel: i32, addr: i32, data: CSlice<
pub extern fn input_timestamp(timeout: i64, channel: i32) -> u64 { pub extern fn input_timestamp(timeout: i64, channel: i32) -> u64 {
unsafe { unsafe {
csr::rtio::chan_sel_write(channel as u32); csr::rtio::chan_sel_write(channel as _);
csr::rtio::timestamp_write(timeout as u64); csr::rtio::timestamp_write(timeout as u64);
csr::rtio::i_request_write(1); csr::rtio::i_request_write(1);
@ -110,7 +110,7 @@ pub extern fn input_timestamp(timeout: i64, channel: i32) -> u64 {
pub extern fn input_data(channel: i32) -> i32 { pub extern fn input_data(channel: i32) -> i32 {
unsafe { unsafe {
csr::rtio::chan_sel_write(channel as u32); csr::rtio::chan_sel_write(channel as _);
csr::rtio::timestamp_write(0xffffffff_ffffffff); csr::rtio::timestamp_write(0xffffffff_ffffffff);
csr::rtio::i_request_write(1); csr::rtio::i_request_write(1);