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-rw-r--r--vpnor/test/dump_flash.cpp92
1 files changed, 92 insertions, 0 deletions
diff --git a/vpnor/test/dump_flash.cpp b/vpnor/test/dump_flash.cpp
new file mode 100644
index 0000000..e811f6f
--- /dev/null
+++ b/vpnor/test/dump_flash.cpp
@@ -0,0 +1,92 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright (C) 2018 IBM Corp.
+
+#include <assert.h>
+#include <string.h>
+
+#include "config.h"
+#include "mboxd_msg.h"
+#include "vpnor/mboxd_pnor_partition_table.h"
+
+extern "C" {
+#include "test/mbox.h"
+#include "test/system.h"
+}
+
+#include "vpnor/test/tmpd.hpp"
+
+struct test_context
+{
+ uint8_t seq;
+ struct mbox_context *ctx;
+};
+
+// Configure the system and the paritions such that we eventually request a
+// window that covers the last section of flash, but the remaining flash is
+// smaller than the window size
+static constexpr auto BLOCK_SIZE = 4096;
+static constexpr auto ERASE_SIZE = BLOCK_SIZE;
+static constexpr auto N_WINDOWS = 3;
+static constexpr auto WINDOW_SIZE = 2 * BLOCK_SIZE;
+static constexpr auto MEM_SIZE = N_WINDOWS * WINDOW_SIZE;
+static constexpr auto PNOR_SIZE = (4 * BLOCK_SIZE);
+
+const std::string toc[] = {
+ "partition01=ONE,00001000,00003000,80,ECC,READONLY",
+};
+
+static const uint8_t get_info[] = {0x02, 0x00, 0x02, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00};
+
+static constexpr auto MBOX_CREATE_READ_WINDOW = 4;
+
+static int mbox_create_read_window(struct test_context *tctx, size_t offset,
+ size_t len)
+{
+ union mbox_regs regs;
+
+ memset(&regs, 0, sizeof(regs));
+ regs.msg.command = MBOX_CREATE_READ_WINDOW;
+ regs.msg.seq = ++tctx->seq;
+ put_u16(&regs.msg.args[0], offset);
+ put_u16(&regs.msg.args[2], len);
+
+ return mbox_command_dispatch(tctx->ctx, regs.raw, sizeof(regs.raw));
+}
+
+int main()
+{
+ namespace test = openpower::virtual_pnor::test;
+
+ struct test_context _tctx = {0}, *tctx = &_tctx;
+ size_t len;
+ size_t pos;
+ int rc;
+
+ system_set_reserved_size(MEM_SIZE);
+ system_set_mtd_sizes(PNOR_SIZE, ERASE_SIZE);
+
+ tctx->ctx = mbox_create_test_context(N_WINDOWS, WINDOW_SIZE);
+ test::VpnorRoot root(tctx->ctx, toc, BLOCK_SIZE);
+ init_vpnor_from_paths(tctx->ctx);
+
+ rc = mbox_command_dispatch(tctx->ctx, get_info, sizeof(get_info));
+ assert(rc == 1);
+
+ pos = 0;
+ while (pos < (PNOR_SIZE / BLOCK_SIZE))
+ {
+ struct mbox_msg _msg, *msg = &_msg;
+
+ rc = mbox_create_read_window(tctx, pos, (WINDOW_SIZE / BLOCK_SIZE));
+ assert(rc == 1);
+
+ mbox_rspcpy(tctx->ctx, msg);
+
+ len = get_u16(&msg->args[2]);
+ pos = get_u16(&msg->args[4]) + len;
+ }
+
+ return 0;
+}
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