Implement ITU-T I.460 multiplex / demultiplex
This implements a multiplexer and de-multiplexer for the ITU-T I.460
standard. The latter covers the transmission of sub-slots of 32/16/8k
inside 64k timeslots.
Change-Id: Id522f06e73b77332b437b7a27e4966872da70eda
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 0d0327a..5e810e6 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -35,6 +35,7 @@
context/context_test \
gsm0502/gsm0502_test \
dtx/dtx_gsm0503_test \
+ i460_mux/i460_mux_test \
$(NULL)
if ENABLE_MSGFILE
@@ -269,6 +270,9 @@
exec_exec_test_SOURCES = exec/exec_test.c
exec_exec_test_LDADD = $(LDADD)
+i460_mux_i460_mux_test_SOURCES = i460_mux/i460_mux_test.c
+i460_mux_i460_mux_test_LDADD = $(LDADD) $(top_builddir)/src/gsm/libosmogsm.la
+
# The `:;' works around a Bash 3.2 bug when the output is not writeable.
$(srcdir)/package.m4: $(top_srcdir)/configure.ac
:;{ \
@@ -346,6 +350,7 @@
gsm0502/gsm0502_test.ok \
dtx/dtx_gsm0503_test.ok \
exec/exec_test.ok exec/exec_test.err \
+ i460_mux/i460_mux_test.ok \
$(NULL)
DISTCLEANFILES = atconfig atlocal conv/gsm0503_test_vectors.c
diff --git a/tests/i460_mux/i460_mux_test.c b/tests/i460_mux/i460_mux_test.c
new file mode 100644
index 0000000..53144fd
--- /dev/null
+++ b/tests/i460_mux/i460_mux_test.c
@@ -0,0 +1,397 @@
+
+#include <osmocom/core/utils.h>
+
+#include <osmocom/gsm/i460_mux.h>
+
+static void bits_cb(void *user_data, const ubit_t *bits, unsigned int num_bits)
+{
+ char *str = user_data;
+ printf("demux_bits_cb '%s': %s\n", str, osmo_ubit_dump(bits, num_bits));
+}
+
+
+const struct osmo_i460_schan_desc scd64 = {
+ .rate = OSMO_I460_RATE_64k,
+ .bit_offset = 0,
+ .demux = {
+ .num_bits = 40,
+ .out_cb_bits = bits_cb,
+ .out_cb_bytes = NULL,
+ .user_data = "64k",
+ },
+};
+
+const struct osmo_i460_schan_desc scd32_0 = {
+ .rate = OSMO_I460_RATE_32k,
+ .bit_offset = 0,
+ .demux = {
+ .num_bits = 40,
+ .out_cb_bits = bits_cb,
+ .out_cb_bytes = NULL,
+ .user_data = "32k_0",
+ },
+};
+const struct osmo_i460_schan_desc scd32_4 = {
+ .rate = OSMO_I460_RATE_32k,
+ .bit_offset = 4,
+ .demux = {
+ .num_bits = 40,
+ .out_cb_bits = bits_cb,
+ .out_cb_bytes = NULL,
+ .user_data = "32k_4",
+ },
+};
+
+const struct osmo_i460_schan_desc scd16_0 = {
+ .rate = OSMO_I460_RATE_16k,
+ .bit_offset = 0,
+ .demux = {
+ .num_bits = 40,
+ .out_cb_bits = bits_cb,
+ .out_cb_bytes = NULL,
+ .user_data = "16k_0",
+ },
+};
+const struct osmo_i460_schan_desc scd16_2 = {
+ .rate = OSMO_I460_RATE_16k,
+ .bit_offset = 2,
+ .demux = {
+ .num_bits = 40,
+ .out_cb_bits = bits_cb,
+ .out_cb_bytes = NULL,
+ .user_data = "16k_2",
+ },
+};
+const struct osmo_i460_schan_desc scd16_4 = {
+ .rate = OSMO_I460_RATE_16k,
+ .bit_offset = 4,
+ .demux = {
+ .num_bits = 40,
+ .out_cb_bits = bits_cb,
+ .out_cb_bytes = NULL,
+ .user_data = "16k_4",
+ },
+};
+const struct osmo_i460_schan_desc scd16_6 = {
+ .rate = OSMO_I460_RATE_16k,
+ .bit_offset = 6,
+ .demux = {
+ .num_bits = 40,
+ .out_cb_bits = bits_cb,
+ .out_cb_bytes = NULL,
+ .user_data = "16k_6",
+ },
+};
+
+const struct osmo_i460_schan_desc scd8_0 = {
+ .rate = OSMO_I460_RATE_8k,
+ .bit_offset = 0,
+ .demux = {
+ .num_bits = 40,
+ .out_cb_bits = bits_cb,
+ .out_cb_bytes = NULL,
+ .user_data = "8k_0",
+ },
+};
+const struct osmo_i460_schan_desc scd8_1 = {
+ .rate = OSMO_I460_RATE_8k,
+ .bit_offset = 1,
+ .demux = {
+ .num_bits = 40,
+ .out_cb_bits = bits_cb,
+ .out_cb_bytes = NULL,
+ .user_data = "8k_1",
+ },
+};
+const struct osmo_i460_schan_desc scd8_2 = {
+ .rate = OSMO_I460_RATE_8k,
+ .bit_offset = 2,
+ .demux = {
+ .num_bits = 40,
+ .out_cb_bits = bits_cb,
+ .out_cb_bytes = NULL,
+ .user_data = "8k_2",
+ },
+};
+const struct osmo_i460_schan_desc scd8_3 = {
+ .rate = OSMO_I460_RATE_8k,
+ .bit_offset = 3,
+ .demux = {
+ .num_bits = 40,
+ .out_cb_bits = bits_cb,
+ .out_cb_bytes = NULL,
+ .user_data = "8k_3",
+ },
+};
+const struct osmo_i460_schan_desc scd8_4 = {
+ .rate = OSMO_I460_RATE_8k,
+ .bit_offset = 4,
+ .demux = {
+ .num_bits = 40,
+ .out_cb_bits = bits_cb,
+ .out_cb_bytes = NULL,
+ .user_data = "8k_4",
+ },
+};
+const struct osmo_i460_schan_desc scd8_5 = {
+ .rate = OSMO_I460_RATE_8k,
+ .bit_offset = 5,
+ .demux = {
+ .num_bits = 40,
+ .out_cb_bits = bits_cb,
+ .out_cb_bytes = NULL,
+ .user_data = "8k_5",
+ },
+};
+const struct osmo_i460_schan_desc scd8_6 = {
+ .rate = OSMO_I460_RATE_8k,
+ .bit_offset = 6,
+ .demux = {
+ .num_bits = 40,
+ .out_cb_bits = bits_cb,
+ .out_cb_bytes = NULL,
+ .user_data = "8k_6",
+ },
+};
+const struct osmo_i460_schan_desc scd8_7 = {
+ .rate = OSMO_I460_RATE_8k,
+ .bit_offset = 7,
+ .demux = {
+ .num_bits = 40,
+ .out_cb_bits = bits_cb,
+ .out_cb_bytes = NULL,
+ .user_data = "8k_7",
+ },
+};
+
+static void test_no_subchan(void)
+{
+ struct osmo_i460_timeslot _ts, *ts = &_ts;
+
+ /* Initialization */
+ printf("\n==> %s\n", __func__);
+ osmo_i460_ts_init(ts);
+
+ /* feed in some data; expect nothing to happen */
+ const uint8_t nothing[128] = { 0, };
+ osmo_i460_demux_in(ts, nothing, sizeof(nothing));
+
+ /* pull bytes out of mux (should be all 0xff) */
+ uint8_t buf[128];
+ osmo_i460_mux_out(ts, buf, sizeof(buf));
+ printf("out: %s\n", osmo_hexdump(buf, sizeof(buf)));
+}
+
+static struct msgb *gen_alternating_bitmsg(unsigned int num_bits)
+{
+ struct msgb *msg = msgb_alloc(num_bits, "mux-in");
+ int i;
+ for (i = 0; i < num_bits; i++)
+ msgb_put_u8(msg, i & 1);
+ return msg;
+}
+
+static void test_64k_subchan(void)
+{
+ struct osmo_i460_timeslot _ts, *ts = &_ts;
+
+ /* Initialization */
+ printf("\n==> %s\n", __func__);
+ osmo_i460_ts_init(ts);
+ osmo_i460_subchan_add(NULL, ts, &scd64);
+
+ /* demux */
+ uint8_t sequence[128];
+ int i;
+ for (i = 0; i < sizeof(sequence); i++)
+ sequence[i] = i;
+ osmo_i460_demux_in(ts, sequence, sizeof(sequence));
+
+ /* mux */
+ struct msgb *msg = gen_alternating_bitmsg(128);
+ osmo_i460_mux_enqueue(&ts->schan[0], msg);
+
+ uint8_t buf[16];
+ osmo_i460_mux_out(ts, buf, sizeof(buf));
+ printf("mux_out: %s\n", osmo_hexdump(buf, sizeof(buf)));
+
+ osmo_i460_subchan_del(&ts->schan[0]);
+}
+
+static void test_32k_subchan(void)
+{
+ struct osmo_i460_timeslot _ts, *ts = &_ts;
+
+ /* Initialization */
+ printf("\n==> %s\n", __func__);
+ osmo_i460_ts_init(ts);
+ osmo_i460_subchan_add(NULL, ts, &scd32_0);
+ osmo_i460_subchan_add(NULL, ts, &scd32_4);
+
+ /* demux */
+ uint8_t sequence[10];
+ int i;
+ for (i = 0; i < sizeof(sequence); i++)
+ sequence[i] = 0;
+ sequence[0] = 0x0f;
+ sequence[1] = 0xf0;
+ sequence[2] = 0xff;
+ osmo_i460_demux_in(ts, sequence, sizeof(sequence));
+
+ /* mux */
+
+ /* test with only a single channel active */
+ for (i = 0; i < 2; i++) {
+ struct msgb *msg = gen_alternating_bitmsg(128);
+ osmo_i460_mux_enqueue(&ts->schan[i], msg);
+ printf("%s-single-%u\n", __func__, i);
+
+ uint8_t buf[16];
+ int j;
+ for (j = 0; j < 3; j++) {
+ osmo_i460_mux_out(ts, buf, sizeof(buf));
+ printf("mux_out: %s\n", osmo_hexdump(buf, sizeof(buf)));
+ }
+ }
+
+ for (i = 0; i < 4; i++)
+ osmo_i460_subchan_del(&ts->schan[i]);
+}
+
+
+
+static void test_16k_subchan(void)
+{
+ struct osmo_i460_timeslot _ts, *ts = &_ts;
+
+ /* Initialization */
+ printf("\n==> %s\n", __func__);
+ osmo_i460_ts_init(ts);
+ osmo_i460_subchan_add(NULL, ts, &scd16_0);
+ osmo_i460_subchan_add(NULL, ts, &scd16_2);
+ osmo_i460_subchan_add(NULL, ts, &scd16_4);
+ osmo_i460_subchan_add(NULL, ts, &scd16_6);
+
+ /* demux */
+ uint8_t sequence[20];
+ int i;
+ for (i = 0; i < sizeof(sequence); i++)
+ sequence[i] = 0;
+ sequence[0] = 0x03;
+ sequence[1] = 0x0c;
+ sequence[2] = 0x30;
+ sequence[3] = 0xc0;
+ sequence[4] = 0xff;
+ osmo_i460_demux_in(ts, sequence, sizeof(sequence));
+
+ /* mux */
+
+ /* test with only a single channel active */
+ for (i = 0; i < 4; i++) {
+ struct msgb *msg = gen_alternating_bitmsg(128);
+ osmo_i460_mux_enqueue(&ts->schan[i], msg);
+ printf("%s-single-%u\n", __func__, i);
+
+ uint8_t buf[16];
+ int j;
+ for (j = 0; j < 5; j++) {
+ osmo_i460_mux_out(ts, buf, sizeof(buf));
+ printf("mux_out: %s\n", osmo_hexdump(buf, sizeof(buf)));
+ }
+ }
+
+ for (i = 0; i < 4; i++)
+ osmo_i460_subchan_del(&ts->schan[i]);
+}
+
+
+static void test_8k_subchan(void)
+{
+ struct osmo_i460_timeslot _ts, *ts = &_ts;
+
+ /* Initialization */
+ printf("\n==> %s\n", __func__);
+ osmo_i460_ts_init(ts);
+ osmo_i460_subchan_add(NULL, ts, &scd8_0);
+ osmo_i460_subchan_add(NULL, ts, &scd8_1);
+ osmo_i460_subchan_add(NULL, ts, &scd8_2);
+ osmo_i460_subchan_add(NULL, ts, &scd8_3);
+ osmo_i460_subchan_add(NULL, ts, &scd8_4);
+ osmo_i460_subchan_add(NULL, ts, &scd8_5);
+ osmo_i460_subchan_add(NULL, ts, &scd8_6);
+ osmo_i460_subchan_add(NULL, ts, &scd8_7);
+
+ /* demux */
+ uint8_t sequence[40];
+ int i;
+ for (i = 0; i < sizeof(sequence); i++)
+ sequence[i] = 0;
+ i = 0;
+ sequence[i++] = 0x01;
+ sequence[i++] = 0x02;
+ sequence[i++] = 0x04;
+ sequence[i++] = 0x08;
+ sequence[i++] = 0x0f;
+ sequence[i++] = 0x10;
+ sequence[i++] = 0x20;
+ sequence[i++] = 0x40;
+ sequence[i++] = 0x80;
+ sequence[i++] = 0xf0;
+ sequence[i++] = 0xff;
+ osmo_i460_demux_in(ts, sequence, sizeof(sequence));
+
+ /* mux */
+
+ /* test with only a single channel active */
+ for (i = 0; i < 8; i++) {
+ struct msgb *msg = gen_alternating_bitmsg(64);
+ osmo_i460_mux_enqueue(&ts->schan[i], msg);
+ printf("%s-single-%u\n", __func__, i);
+
+ uint8_t buf[16];
+ int j;
+ for (j = 0; j < 5; j++) {
+ osmo_i460_mux_out(ts, buf, sizeof(buf));
+ printf("mux_out: %s\n", osmo_hexdump(buf, sizeof(buf)));
+ }
+ }
+
+ for (i = 0; i < 8; i++)
+ osmo_i460_subchan_del(&ts->schan[i]);
+}
+
+/* activate only one sub-channel; expect unused bits to be '1' */
+static void test_unused_subchan(void)
+{
+ struct osmo_i460_timeslot _ts, *ts = &_ts;
+
+ /* Initialization */
+ printf("\n==> %s\n", __func__);
+ osmo_i460_ts_init(ts);
+ osmo_i460_subchan_add(NULL, ts, &scd16_0);
+
+ /* mux */
+ struct msgb *msg = gen_alternating_bitmsg(128);
+ memset(msgb_data(msg), 0, msgb_length(msg));
+ osmo_i460_mux_enqueue(&ts->schan[0], msg);
+ printf("%s-single\n", __func__);
+
+ uint8_t buf[16];
+ int j;
+ for (j = 0; j < 5; j++) {
+ osmo_i460_mux_out(ts, buf, sizeof(buf));
+ printf("mux_out: %s\n", osmo_hexdump(buf, sizeof(buf)));
+ }
+
+ osmo_i460_subchan_del(&ts->schan[0]);
+}
+
+int main(int argc, char **argv)
+{
+ test_no_subchan();
+ test_64k_subchan();
+ test_32k_subchan();
+ test_16k_subchan();
+ test_8k_subchan();
+ test_unused_subchan();
+}
diff --git a/tests/i460_mux/i460_mux_test.ok b/tests/i460_mux/i460_mux_test.ok
new file mode 100644
index 0000000..b94fb7b
--- /dev/null
+++ b/tests/i460_mux/i460_mux_test.ok
@@ -0,0 +1,115 @@
+
+==> test_no_subchan
+out: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
+
+==> test_64k_subchan
+demux_bits_cb '64k': 0000000000000001000000100000001100000100000001010000011000000111000010000000100100001010000010110000110000001101000011100000111100010000000100010001001000010011000101000001010100010110000101110001100000011001000110100001101100011100000111010001111000011111001000000010000100100010001000110010010000100101001001100010011100101000001010010010101000101011001011000010110100101110001011110011000000110001001100100011001100110100001101010011011000110111001110000011100100111010001110110011110000111101001111100011111101000000010000010100001001000011010001000100010101000110010001110100100001001001010010100100101101001100010011010100111001001111010100000101000101010010010100110101010001010101010101100101011101011000010110010101101001011011010111000101110101011110010111110110000001100001011000100110001101100100011001010110011001100111011010000110100101101010011010110110110001101101011011100110111101110000011100010111001001110011011101000111010101110110011101110111100001111001011110100111101101111100011111010111111001111111
+mux_out: 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55
+
+==> test_32k_subchan
+demux_bits_cb '32k_0': 1111000011110000000000000000000000000000
+demux_bits_cb '32k_4': 0000111111110000000000000000000000000000
+test_32k_subchan-single-0
+mux_out: f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
+mux_out: f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
+mux_out: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
+test_32k_subchan-single-1
+mux_out: 5f 5f 5f 5f 5f 5f 5f 5f 5f 5f 5f 5f 5f 5f 5f 5f
+mux_out: 5f 5f 5f 5f 5f 5f 5f 5f 5f 5f 5f 5f 5f 5f 5f 5f
+mux_out: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
+
+==> test_16k_subchan
+demux_bits_cb '16k_0': 1100000011000000000000000000000000000000
+demux_bits_cb '16k_2': 0011000011000000000000000000000000000000
+demux_bits_cb '16k_4': 0000110011000000000000000000000000000000
+demux_bits_cb '16k_6': 0000001111000000000000000000000000000000
+test_16k_subchan-single-0
+mux_out: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
+mux_out: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
+mux_out: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
+mux_out: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
+mux_out: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
+test_16k_subchan-single-1
+mux_out: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7
+mux_out: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7
+mux_out: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7
+mux_out: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7
+mux_out: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
+test_16k_subchan-single-2
+mux_out: df df df df df df df df df df df df df df df df
+mux_out: df df df df df df df df df df df df df df df df
+mux_out: df df df df df df df df df df df df df df df df
+mux_out: df df df df df df df df df df df df df df df df
+mux_out: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
+test_16k_subchan-single-3
+mux_out: 7f 7f 7f 7f 7f 7f 7f 7f 7f 7f 7f 7f 7f 7f 7f 7f
+mux_out: 7f 7f 7f 7f 7f 7f 7f 7f 7f 7f 7f 7f 7f 7f 7f 7f
+mux_out: 7f 7f 7f 7f 7f 7f 7f 7f 7f 7f 7f 7f 7f 7f 7f 7f
+mux_out: 7f 7f 7f 7f 7f 7f 7f 7f 7f 7f 7f 7f 7f 7f 7f 7f
+mux_out: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
+
+==> test_8k_subchan
+demux_bits_cb '8k_0': 1000100000100000000000000000000000000000
+demux_bits_cb '8k_1': 0100100000100000000000000000000000000000
+demux_bits_cb '8k_2': 0010100000100000000000000000000000000000
+demux_bits_cb '8k_3': 0001100000100000000000000000000000000000
+demux_bits_cb '8k_4': 0000010001100000000000000000000000000000
+demux_bits_cb '8k_5': 0000001001100000000000000000000000000000
+demux_bits_cb '8k_6': 0000000101100000000000000000000000000000
+demux_bits_cb '8k_7': 0000000011100000000000000000000000000000
+test_8k_subchan-single-0
+mux_out: fe ff fe ff fe ff fe ff fe ff fe ff fe ff fe ff
+mux_out: fe ff fe ff fe ff fe ff fe ff fe ff fe ff fe ff
+mux_out: fe ff fe ff fe ff fe ff fe ff fe ff fe ff fe ff
+mux_out: fe ff fe ff fe ff fe ff fe ff fe ff fe ff fe ff
+mux_out: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
+test_8k_subchan-single-1
+mux_out: fd ff fd ff fd ff fd ff fd ff fd ff fd ff fd ff
+mux_out: fd ff fd ff fd ff fd ff fd ff fd ff fd ff fd ff
+mux_out: fd ff fd ff fd ff fd ff fd ff fd ff fd ff fd ff
+mux_out: fd ff fd ff fd ff fd ff fd ff fd ff fd ff fd ff
+mux_out: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
+test_8k_subchan-single-2
+mux_out: fb ff fb ff fb ff fb ff fb ff fb ff fb ff fb ff
+mux_out: fb ff fb ff fb ff fb ff fb ff fb ff fb ff fb ff
+mux_out: fb ff fb ff fb ff fb ff fb ff fb ff fb ff fb ff
+mux_out: fb ff fb ff fb ff fb ff fb ff fb ff fb ff fb ff
+mux_out: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
+test_8k_subchan-single-3
+mux_out: f7 ff f7 ff f7 ff f7 ff f7 ff f7 ff f7 ff f7 ff
+mux_out: f7 ff f7 ff f7 ff f7 ff f7 ff f7 ff f7 ff f7 ff
+mux_out: f7 ff f7 ff f7 ff f7 ff f7 ff f7 ff f7 ff f7 ff
+mux_out: f7 ff f7 ff f7 ff f7 ff f7 ff f7 ff f7 ff f7 ff
+mux_out: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
+test_8k_subchan-single-4
+mux_out: ef ff ef ff ef ff ef ff ef ff ef ff ef ff ef ff
+mux_out: ef ff ef ff ef ff ef ff ef ff ef ff ef ff ef ff
+mux_out: ef ff ef ff ef ff ef ff ef ff ef ff ef ff ef ff
+mux_out: ef ff ef ff ef ff ef ff ef ff ef ff ef ff ef ff
+mux_out: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
+test_8k_subchan-single-5
+mux_out: df ff df ff df ff df ff df ff df ff df ff df ff
+mux_out: df ff df ff df ff df ff df ff df ff df ff df ff
+mux_out: df ff df ff df ff df ff df ff df ff df ff df ff
+mux_out: df ff df ff df ff df ff df ff df ff df ff df ff
+mux_out: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
+test_8k_subchan-single-6
+mux_out: bf ff bf ff bf ff bf ff bf ff bf ff bf ff bf ff
+mux_out: bf ff bf ff bf ff bf ff bf ff bf ff bf ff bf ff
+mux_out: bf ff bf ff bf ff bf ff bf ff bf ff bf ff bf ff
+mux_out: bf ff bf ff bf ff bf ff bf ff bf ff bf ff bf ff
+mux_out: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
+test_8k_subchan-single-7
+mux_out: 7f ff 7f ff 7f ff 7f ff 7f ff 7f ff 7f ff 7f ff
+mux_out: 7f ff 7f ff 7f ff 7f ff 7f ff 7f ff 7f ff 7f ff
+mux_out: 7f ff 7f ff 7f ff 7f ff 7f ff 7f ff 7f ff 7f ff
+mux_out: 7f ff 7f ff 7f ff 7f ff 7f ff 7f ff 7f ff 7f ff
+mux_out: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
+
+==> test_unused_subchan
+test_unused_subchan-single
+mux_out: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
+mux_out: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
+mux_out: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
+mux_out: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
+mux_out: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
diff --git a/tests/testsuite.at b/tests/testsuite.at
index bab5730..4ff6671 100644
--- a/tests/testsuite.at
+++ b/tests/testsuite.at
@@ -375,3 +375,9 @@
cat $abs_srcdir/exec/exec_test.err > experr
AT_CHECK([$abs_top_builddir/tests/exec/exec_test], [0], [expout], [experr])
AT_CLEANUP
+
+AT_SETUP([i460_mux])
+AT_KEYWORDS([i460_mux])
+cat $abs_srcdir/i460_mux/i460_mux_test.ok > expout
+AT_CHECK([$abs_top_builddir/tests/i460_mux/i460_mux_test], [0], [expout], [ignore])
+AT_CLEANUP