runtime: break ttl-specific functions from rtio

artiq/coredevice/runtime.py

@@ -16,11 +16,11 @@ _syscalls = {
     "now_save": "I:n",
     "watchdog_set": "i:i",
     "watchdog_clear": "i:n",
-    "rtio_set_o": "Iib:n",
-    "rtio_set_oe": "Iib:n",
-    "rtio_set_sensitivity": "Iii:n",
     "rtio_get_counter": "n:I",
-    "rtio_get": "iI:I",
+    "ttl_set_o": "Iib:n",
+    "ttl_set_oe": "Iib:n",
+    "ttl_set_sensitivity": "Iii:n",
+    "ttl_get": "iI:I",
     "dds_init": "Ii:n",
     "dds_set": "Iiiii:n",
 }

artiq/coredevice/ttl.py

@@ -24,7 +24,7 @@ class LLTTLOut(AutoDB):
         :param t: timestamp in RTIO cycles (64-bit integer).
         :param value: value to set at the output.
         """
-        syscall("rtio_set_o", t, self.channel, value)
+        syscall("ttl_set_o", t, self.channel, value)
 
     @kernel
     def on(self, t):
@@ -62,7 +62,7 @@ class TTLOut(AutoDB):
 
     @kernel
     def _set_o(self, o):
-        syscall("rtio_set_o", time_to_cycles(now()), self.channel, o)
+        syscall("ttl_set_o", time_to_cycles(now()), self.channel, o)
         self.o_previous_timestamp = time_to_cycles(now())
 
     @kernel
@@ -118,7 +118,7 @@ class TTLInOut(AutoDB):
 
     @kernel
     def _set_oe(self, oe):
-        syscall("rtio_set_oe", time_to_cycles(now()), self.channel, oe)
+        syscall("ttl_set_oe", time_to_cycles(now()), self.channel, oe)
 
     @kernel
     def output(self):
@@ -130,7 +130,7 @@ class TTLInOut(AutoDB):
 
     @kernel
     def _set_o(self, o):
-        syscall("rtio_set_o", time_to_cycles(now()), self.channel, o)
+        syscall("ttl_set_o", time_to_cycles(now()), self.channel, o)
         self.o_previous_timestamp = time_to_cycles(now())
 
     @kernel
@@ -158,7 +158,7 @@ class TTLInOut(AutoDB):
 
     @kernel
     def _set_sensitivity(self, value):
-        syscall("rtio_set_sensitivity", time_to_cycles(now()), self.channel, value)
+        syscall("ttl_set_sensitivity", time_to_cycles(now()), self.channel, value)
         self.i_previous_timestamp = time_to_cycles(now())
 
     @kernel
@@ -188,7 +188,7 @@ class TTLInOut(AutoDB):
         """Poll the RTIO input during all the previously programmed gate
         openings, and returns the number of registered events."""
         count = 0
-        while syscall("rtio_get", self.channel,
+        while syscall("ttl_get", self.channel,
                       self.i_previous_timestamp) >= 0:
             count += 1
         return count
@@ -200,5 +200,5 @@ class TTLInOut(AutoDB):
 
         If the gate is permanently closed, returns a negative value.
         """
-        return cycles_to_time(syscall("rtio_get", self.channel,
+        return cycles_to_time(syscall("ttl_get", self.channel,
                                       self.i_previous_timestamp))

soc/runtime/Makefile

@@ -1,7 +1,7 @@
 include $(MSCDIR)/software/common.mak
 
 OBJECTS := isr.o flash_storage.o clock.o elf_loader.o services.o session.o log.o test_mode.o kloader.o mailbox.o ksupport_data.o kserver.o main.o
-OBJECTS_KSUPPORT := ksupport.o exception_jmp.o exceptions.o mailbox.o bridge.o rtio.o dds.o
+OBJECTS_KSUPPORT := ksupport.o exception_jmp.o exceptions.o mailbox.o bridge.o rtio.o ttl.o dds.o
 
 CFLAGS += -Ilwip/src/include -Iliblwip
 

soc/runtime/bridge.c

@@ -1,6 +1,7 @@
 #include "mailbox.h"
 #include "messages.h"
 #include "rtio.h"
+#include "ttl.h"
 #include "dds.h"
 #include "bridge.h"
 
@@ -45,7 +46,7 @@ void bridge_main(void)
                 struct msg_brg_ttl_out *msg;
 
                 msg = (struct msg_brg_ttl_out *)umsg;
-                rtio_set_oe(rtio_get_counter() + 8000, msg->channel, msg->value);
+                ttl_set_oe(rtio_get_counter() + 8000, msg->channel, msg->value);
                 mailbox_acknowledge();
                 break;
             }
@@ -53,7 +54,7 @@ void bridge_main(void)
                 struct msg_brg_ttl_out *msg;
 
                 msg = (struct msg_brg_ttl_out *)umsg;
-                rtio_set_o(rtio_get_counter() + 8000, msg->channel, msg->value);
+                ttl_set_o(rtio_get_counter() + 8000, msg->channel, msg->value);
                 mailbox_acknowledge();
                 break;
             }

soc/runtime/gen_service_table.py

@@ -9,17 +9,23 @@ services = [
     ("syscalls", [
         ("now_init", "now_init"),
         ("now_save", "now_save"),
-        ("rpc", "rpc"),
+
         ("watchdog_set", "watchdog_set"),
         ("watchdog_clear", "watchdog_clear"),
-        ("rtio_set_o", "rtio_set_o"),
-        ("rtio_set_oe", "rtio_set_oe"),
-        ("rtio_set_sensitivity", "rtio_set_sensitivity"),
+
+        ("rpc", "rpc"),
+
         ("rtio_get_counter", "rtio_get_counter"),
-        ("rtio_get", "rtio_get"),
+
+        ("ttl_set_o", "ttl_set_o"),
+        ("ttl_set_oe", "ttl_set_oe"),
+        ("ttl_set_sensitivity", "ttl_set_sensitivity"),
+        ("ttl_get", "ttl_get"),
+
         ("dds_init", "dds_init"),
         ("dds_set", "dds_set"),
     ]),
+
     ("eh", [
         ("setjmp", "exception_setjmp"),
         ("push", "exception_push"),

soc/runtime/rtio.c

@@ -1,6 +1,5 @@
 #include <generated/csr.h>
 
-#include "exceptions.h"
 #include "rtio.h"
 
 void rtio_init(void)
@@ -16,55 +15,3 @@ long long int rtio_get_counter(void)
     return rtio_counter_read();
 }
 
-void rtio_set_o(long long int timestamp, int channel, int value)
-{
-    rtio_chan_sel_write(channel);
-    rtio_o_timestamp_write(timestamp);
-    rtio_o_address_write(0);
-    rtio_o_data_write(value);
-    rtio_write_and_process_status(timestamp, channel);
-}
-
-void rtio_set_oe(long long int timestamp, int channel, int oe)
-{
-    rtio_chan_sel_write(channel);
-    rtio_o_timestamp_write(timestamp);
-    rtio_o_address_write(1);
-    rtio_o_data_write(oe);
-    rtio_write_and_process_status(timestamp, channel);
-}
-
-void rtio_set_sensitivity(long long int timestamp, int channel, int sensitivity)
-{
-    rtio_chan_sel_write(channel);
-    rtio_o_timestamp_write(timestamp);
-    rtio_o_address_write(2);
-    rtio_o_data_write(sensitivity);
-    rtio_write_and_process_status(timestamp, channel);
-}
-
-long long int rtio_get(int channel, long long int time_limit)
-{
-    long long int r;
-    int status;
-
-    rtio_chan_sel_write(channel);
-    while((status = rtio_i_status_read())) {
-        if(rtio_i_status_read() & RTIO_I_STATUS_OVERFLOW) {
-            rtio_i_overflow_reset_write(1);
-            exception_raise_params(EID_RTIO_OVERFLOW,
-                channel, 0, 0);
-        }
-        if(rtio_get_counter() >= time_limit) {
-            /* check empty flag again to prevent race condition.
-             * now we are sure that the time limit has been exceeded.
-             */
-            if(rtio_i_status_read() & RTIO_I_STATUS_EMPTY)
-                return -1;
-        }
-        /* input FIFO is empty - keep waiting */
-    }
-    r = rtio_i_timestamp_read();
-    rtio_i_re_write(1);
-    return r;
-}

soc/runtime/rtio.h

@@ -35,9 +35,4 @@ static inline void rtio_write_and_process_status(long long int timestamp, int ch
     }
 }
 
-void rtio_set_o(long long int timestamp, int channel, int value);
-void rtio_set_oe(long long int timestamp, int channel, int oe);
-void rtio_set_sensitivity(long long int timestamp, int channel, int sensitivity);
-long long int rtio_get(int channel, long long int time_limit);
-
 #endif /* __RTIO_H */

soc/runtime/services.c

@@ -3,7 +3,7 @@
 #include "elf_loader.h"
 #include "session.h"
 #include "clock.h"
-#include "rtio.h"
+#include "ttl.h"
 #include "dds.h"
 #include "exceptions.h"
 #include "services.h"

soc/runtime/ttl.c

@@ -0,0 +1,58 @@
+#include <generated/csr.h>
+
+#include "exceptions.h"
+#include "rtio.h"
+#include "ttl.h"
+
+void ttl_set_o(long long int timestamp, int channel, int value)
+{
+    rtio_chan_sel_write(channel);
+    rtio_o_timestamp_write(timestamp);
+    rtio_o_address_write(0);
+    rtio_o_data_write(value);
+    rtio_write_and_process_status(timestamp, channel);
+}
+
+void ttl_set_oe(long long int timestamp, int channel, int oe)
+{
+    rtio_chan_sel_write(channel);
+    rtio_o_timestamp_write(timestamp);
+    rtio_o_address_write(1);
+    rtio_o_data_write(oe);
+    rtio_write_and_process_status(timestamp, channel);
+}
+
+void ttl_set_sensitivity(long long int timestamp, int channel, int sensitivity)
+{
+    rtio_chan_sel_write(channel);
+    rtio_o_timestamp_write(timestamp);
+    rtio_o_address_write(2);
+    rtio_o_data_write(sensitivity);
+    rtio_write_and_process_status(timestamp, channel);
+}
+
+long long int ttl_get(int channel, long long int time_limit)
+{
+    long long int r;
+    int status;
+
+    rtio_chan_sel_write(channel);
+    while((status = rtio_i_status_read())) {
+        if(rtio_i_status_read() & RTIO_I_STATUS_OVERFLOW) {
+            rtio_i_overflow_reset_write(1);
+            exception_raise_params(EID_RTIO_OVERFLOW,
+                channel, 0, 0);
+        }
+        if(rtio_get_counter() >= time_limit) {
+            /* check empty flag again to prevent race condition.
+             * now we are sure that the time limit has been exceeded.
+             */
+            if(rtio_i_status_read() & RTIO_I_STATUS_EMPTY)
+                return -1;
+        }
+        /* input FIFO is empty - keep waiting */
+    }
+    r = rtio_i_timestamp_read();
+    rtio_i_re_write(1);
+    return r;
+}

soc/runtime/ttl.h

@@ -0,0 +1,9 @@
+#ifndef __TTL_H
+#define __TTL_H
+
+void ttl_set_o(long long int timestamp, int channel, int value);
+void ttl_set_oe(long long int timestamp, int channel, int oe);
+void ttl_set_sensitivity(long long int timestamp, int channel, int sensitivity);
+long long int ttl_get(int channel, long long int time_limit);
+
+#endif /* __TTL_H */