diff options
Diffstat (limited to 'vpnor/test/dump_flash.cpp')
-rw-r--r-- | vpnor/test/dump_flash.cpp | 92 |
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(®s, 0, sizeof(regs)); + regs.msg.command = MBOX_CREATE_READ_WINDOW; + regs.msg.seq = ++tctx->seq; + put_u16(®s.msg.args[0], offset); + put_u16(®s.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; +} |