new file mode 100644
@@ -0,0 +1,70 @@
+/*
+ * Helper functions to work with BCM2838 mailbox via qtest interface.
+ *
+ * Copyright (c) 2023 Auriga LLC
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include "qemu/osdep.h"
+#include "libqtest-single.h"
+#include "bcm2838-mailbox.h"
+
+
+static uint32_t qtest_mbox0_read_reg32(QTestState *s, uint32_t offset)
+{
+ return qtest_readl(s, MBOX0_BASE + offset);
+}
+
+static void qtest_mbox1_write_reg32(QTestState *s, uint32_t offset, uint32_t value)
+{
+ return qtest_writel(s, MBOX1_BASE + offset, value);
+}
+
+static void qtest_mbox1_write(QTestState *s, uint8_t channel, uint32_t data)
+{
+ MboxRegWrite reg;
+
+ reg.fields.channel = channel;
+ reg.fields.data = data;
+ qtest_mbox1_write_reg32(s, MBOX_REG_WRITE, reg.value);
+}
+
+int qtest_mbox0_has_data(QTestState *s) {
+ return !(qtest_mbox0_read_reg32(s, MBOX_REG_STATUS) & MBOX_READ_EMPTY);
+}
+
+int mbox0_has_data(void) {
+ return qtest_mbox0_has_data(global_qtest);
+}
+
+void qtest_mbox0_read_message(QTestState *s,
+ uint8_t channel,
+ void *msgbuf,
+ size_t msgbuf_size)
+{
+ MboxRegRead reg;
+ uint32_t msgaddr;
+
+ g_assert(qtest_mbox0_has_data(s));
+ reg.value = qtest_mbox0_read_reg32(s, MBOX_REG_READ);
+ g_assert_cmphex(reg.fields.channel, ==, channel);
+ msgaddr = reg.fields.data << 4;
+ qtest_memread(s, msgaddr, msgbuf, msgbuf_size);
+}
+
+void mbox0_read_message(uint8_t channel, void *msgbuf, size_t msgbuf_size) {
+ qtest_mbox0_read_message(global_qtest, channel, msgbuf, msgbuf_size);
+}
+
+void qtest_mbox1_write_message(QTestState *s, uint8_t channel, uint32_t msg_addr)
+{
+ qtest_mbox1_write(s, channel, msg_addr >> 4);
+}
+
+
+void mbox1_write_message(uint8_t channel, uint32_t msg_addr)
+{
+ qtest_mbox1_write_message(global_qtest, channel, msg_addr);
+}
new file mode 100644
@@ -0,0 +1,48 @@
+/*
+ * Declarations for BCM2838 mailbox test.
+ *
+ * Copyright (c) 2023 Auriga LLC
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+typedef union {
+ uint32_t value;
+ struct {
+ uint32_t channel: 4;
+ uint32_t data : 28;
+ } fields;
+} MboxRegWrite;
+
+typedef MboxRegWrite MboxRegRead;
+
+typedef struct {
+ uint32_t size;
+ uint32_t req_resp_code;
+} MboxBufHeader;
+
+#define DECLARE_TAG_TYPE(TypeName, RequestValueType, ResponseValueType) \
+typedef struct { \
+ uint32_t id; \
+ uint32_t value_buffer_size; \
+ union { \
+ struct { \
+ uint32_t zero; \
+ RequestValueType __attribute__((packed)) value; \
+ } request; \
+ struct { \
+ uint32_t size : 31; \
+ uint32_t success: 1; \
+ ResponseValueType __attribute__((packed)) value; \
+ } response; \
+ }; \
+} TypeName
+
+
+int mbox0_has_data(void);
+void mbox0_read_message(uint8_t channel, void *msgbuf, size_t msgbuf_size);
+void mbox1_write_message(uint8_t channel, uint32_t msg_addr);
+int qtest_mbox0_has_data(QTestState *s);
+void qtest_mbox0_read_message(QTestState *s, uint8_t channel, void *msgbuf, size_t msgbuf_size);
+void qtest_mbox1_write_message(QTestState *s, uint8_t channel, uint32_t msg_addr);
@@ -318,6 +318,7 @@ qtests = {
'tpm-tis-device-test': [io, tpmemu_files, 'tpm-tis-util.c'],
'vmgenid-test': files('boot-sector.c', 'acpi-utils.c'),
'netdev-socket': files('netdev-socket.c', '../unit/socket-helpers.c'),
+ 'bcm2838-mbox-property-test' : files('bcm2838-mailbox.c'),
}
if vnc.found()
Signed-off-by: Sergey Kambalin <sergey.kambalin@auriga.com> --- tests/qtest/bcm2838-mailbox.c | 70 +++++++++++++++++++++++++++++++++++ tests/qtest/bcm2838-mailbox.h | 48 ++++++++++++++++++++++++ tests/qtest/meson.build | 1 + 3 files changed, 119 insertions(+) create mode 100644 tests/qtest/bcm2838-mailbox.c create mode 100644 tests/qtest/bcm2838-mailbox.h