commit 004a869f63d93bc2c34bf4a9cd3426d67955d113
author Tri Vo <trong@google.com> Mon Jun 22 11:22:24 2020 -0700
committer Tri Vo <trong@google.com> Tue Jun 23 04:23:08 2020 +0000
tree 55a2c49da5d65fb8d91aa5057fddb94755da51e7
parent 9a33518472a9a7a18e9a2c647668aa73be5b7635

[spi][test] Add test for large (~1MB) data transfers

Also increase test app's heap size, since shared memory between
the test and SPI server is allocated from the heap.

Bug: 151102582
Test: com.android.trusty.swspi.test
Change-Id: I0447f74be56c259960392d2021cee567b34ffc40

spi/swspi-test/manifest.json

diff --git a/spi/swspi-test/manifest.json b/spi/swspi-test/manifest.json
index b3abf64..b000474 100644
--- a/spi/swspi-test/manifest.json
+++ b/spi/swspi-test/manifest.json
@@ -1,5 +1,5 @@
 {
     "uuid": "73f889dd-306f-4253-b295-18ac53c17471",
-    "min_heap": 40960,
+    "min_heap": 3145728,
     "min_stack": 4096
 }

spi/swspi-test/swspi-test.c

diff --git a/spi/swspi-test/swspi-test.c b/spi/swspi-test/swspi-test.c
index 26a8266..f759d46 100644
--- a/spi/swspi-test/swspi-test.c
+++ b/spi/swspi-test/swspi-test.c
@@ -29,8 +29,8 @@
 #include <trusty_unittest.h>
 
 #define MAX_NUM_CMDS 32
-#define MAX_TOTAL_PAYLOAD 1024
-#define TXRX_SIZE 1024
+#define MAX_TOTAL_PAYLOAD 1024 * 1024 /* 1 MB */
+#define TXRX_SIZE MAX_TOTAL_PAYLOAD
 #define CLK_SPEED 1000000 /* 1 MHz */
 #define PAGE_SIZE getauxval(AT_PAGESZ)
 
@@ -361,6 +361,14 @@
     EXPECT_EQ(rc, 0, "exec xfer 1024");
 }
 
+TEST_P(swspi, very_large_data_xfer) {
+    int rc;
+    struct spi_test_dev* test_dev = _state->test_dev;
+
+    rc = exec_xfer(test_dev, MAX_TOTAL_PAYLOAD);
+    EXPECT_EQ(rc, 0);
+}
+
 TEST_P(swspi, multi_segment_xfer) {
     int rc;
     void* tx0;
@@ -408,7 +416,7 @@
 TEST_P(swspi, unidir_recv) {
     int rc;
     void* rx;
-    uint8_t expected[TXRX_SIZE];
+    uint8_t expected[128];
     size_t sz = sizeof(expected);
     struct spi_dev* dev = &_state->test_dev->dev;
     bool loopback = _state->test_dev->loopback;