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/*
* This file is part of the flashrom project.
*
* Copyright 2021 Google LLC
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <include/test.h>
#include <stdio.h>
#include <string.h>
#include "chipdrivers.h"
#include "flash.h"
#include "programmer.h"
#define CHIP_TOTAL_SIZE 8192
static struct {
unsigned int unlock_calls; /* how many times unlock function was called */
uint8_t buf[CHIP_TOTAL_SIZE]; /* buffer of total size of chip, to emulate a chip */
} g_chip_state = {
.unlock_calls = 0,
.buf = { 0 },
};
int read_chip(struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len)
{
printf("Read chip called with start=0x%x, len=0x%x\n", start, len);
if (!g_chip_state.unlock_calls) {
printf("Error while reading chip: unlock was not called.\n");
return 1;
}
assert_in_range(start + len, 0, CHIP_TOTAL_SIZE);
memcpy(buf, &g_chip_state.buf[start], len);
return 0;
}
int write_chip(struct flashctx *flash, const uint8_t *buf, unsigned int start, unsigned int len)
{
printf("Write chip called with start=0x%x, len=0x%x\n", start, len);
if (!g_chip_state.unlock_calls) {
printf("Error while writing chip: unlock was not called.\n");
return 1;
}
assert_in_range(start + len, 0, CHIP_TOTAL_SIZE);
memcpy(&g_chip_state.buf[start], buf, len);
return 0;
}
int unlock_chip(struct flashctx *flash)
{
printf("Unlock chip called\n");
g_chip_state.unlock_calls++;
if (g_chip_state.unlock_calls > 1) {
printf("Error: Unlock called twice\n");
return -1;
}
return 0;
}
int block_erase_chip(struct flashctx *flash, unsigned int blockaddr, unsigned int blocklen)
{
printf("Block erase called with blockaddr=0x%x, blocklen=0x%x\n", blockaddr, blocklen);
if (!g_chip_state.unlock_calls) {
printf("Error while erasing chip: unlock was not called.\n");
return 1;
}
assert_in_range(blockaddr + blocklen, 0, CHIP_TOTAL_SIZE);
memset(&g_chip_state.buf[blockaddr], 0xff, blocklen);
return 0;
}
static void setup_chip(struct flashrom_flashctx *flash, struct flashrom_layout **layout,
struct flashchip *chip, const char *programmer_param)
{
flash->chip = chip;
g_chip_state.unlock_calls = 0;
printf("Creating layout with one included region... ");
assert_int_equal(0, flashrom_layout_new(layout));
/* One region which covers total size of chip. */
assert_int_equal(0, flashrom_layout_add_region(*layout, 0, chip->total_size * 1024 - 1, "region"));
assert_int_equal(0, flashrom_layout_include_region(*layout, "region"));
flashrom_layout_set(flash, *layout);
printf("done\n");
/*
* We need some programmer (any), and dummy is a very good one,
* because it doesn't need any mocking. So no extra complexity
* from a programmer side, and test can focus on working with the chip.
*/
printf("Dummyflasher initialising with param=\"%s\"... ", programmer_param);
assert_int_equal(0, programmer_init(&programmer_dummy, programmer_param));
/* Assignment below normally happens while probing, but this test is not probing. */
flash->mst = ®istered_masters[0];
printf("done\n");
}
static void teardown(struct flashrom_layout **layout)
{
printf("Dummyflasher shutdown... ");
assert_int_equal(0, programmer_shutdown());
printf("done\n");
printf("Releasing layout... ");
flashrom_layout_release(*layout);
printf("done\n");
}
void erase_chip_test_success(void **state)
{
(void) state; /* unused */
struct flashchip chip = {
.vendor = "aklm",
/*
* Total size less than 16 to skip some steps
* in flashrom.c#prepare_flash_access.
*/
.total_size = 8,
.tested = TEST_OK_PREW,
.read = read_chip,
.write = write_chip,
.unlock = unlock_chip,
.block_erasers =
{{
/* All blocks within total size of the chip. */
.eraseblocks = { {2 * 1024, 4} },
.block_erase = block_erase_chip,
}},
};
struct flashrom_flashctx flash = { 0 };
struct flashrom_layout *layout;
const char *param = ""; /* Default values for all params. */
setup_chip(&flash, &layout, &chip, param);
printf("Erase chip operation started.\n");
assert_int_equal(0, do_erase(&flash));
printf("Erase chip operation done.\n");
teardown(&layout);
}
void erase_chip_with_dummyflasher_test_success(void **state)
{
(void) state; /* unused */
struct flashchip chip = {
.vendor = "aklm&dummyflasher",
/*
* Setup the values for W25Q128.V because we ask dummyflasher
* to emulate this chip. All operations: read/write/unlock/erase
* are real, not mocks, and they are expected to be handled by
* dummyflasher.
*/
.total_size = 16 * 1024,
.tested = TEST_OK_PREW,
.read = spi_chip_read,
.write = spi_chip_write_256,
.unlock = spi_disable_blockprotect,
.block_erasers =
{
{
.eraseblocks = { {4 * 1024, 4096} },
.block_erase = spi_block_erase_20,
}, {
.eraseblocks = { {32 * 1024, 512} },
.block_erase = spi_block_erase_52,
}, {
.eraseblocks = { {64 * 1024, 256} },
.block_erase = spi_block_erase_d8,
}, {
.eraseblocks = { {16 * 1024 * 1024, 1} },
.block_erase = spi_block_erase_60,
}, {
.eraseblocks = { {16 * 1024 * 1024, 1} },
.block_erase = spi_block_erase_c7,
}
},
};
struct flashrom_flashctx flash = { 0 };
struct flashrom_layout *layout;
/*
* Dummyflasher is capable to emulate a chip, so we ask it to do this.
* Nothing to mock, dummy is taking care of this already.
*/
char *param_dup = strdup("bus=spi,emulate=W25Q128FV");
setup_chip(&flash, &layout, &chip, param_dup);
printf("Erase chip operation started.\n");
assert_int_equal(0, do_erase(&flash));
printf("Erase chip operation done.\n");
teardown(&layout);
free(param_dup);
}
void read_chip_test_success(void **state)
{
(void) state; /* unused */
struct flashchip chip = {
.vendor = "aklm",
/*
* Total size less than 16 to skip some steps
* in flashrom.c#prepare_flash_access.
*/
.total_size = 8,
.tested = TEST_OK_PREW,
.read = read_chip,
.write = write_chip,
.unlock = unlock_chip,
.block_erasers =
{{
/* All blocks within total size of the chip. */
.eraseblocks = { {2 * 1024, 4} },
.block_erase = block_erase_chip,
}},
};
struct flashrom_flashctx flash = { 0 };
struct flashrom_layout *layout;
const char *param = ""; /* Default values for all params. */
setup_chip(&flash, &layout, &chip, param);
const char *const filename = "read_chip.test";
printf("Read chip operation started.\n");
assert_int_equal(0, do_read(&flash, filename));
printf("Read chip operation done.\n");
teardown(&layout);
}
void read_chip_with_dummyflasher_test_success(void **state)
{
(void) state; /* unused */
struct flashchip chip = {
.vendor = "aklm&dummyflasher",
/*
* Setup the values for W25Q128.V because we ask dummyflasher
* to emulate this chip. All operations: read/write/unlock/erase
* are real, not mocks, and they are expected to be handled by
* dummyflasher.
*/
.total_size = 16 * 1024,
.tested = TEST_OK_PREW,
.read = spi_chip_read,
.write = spi_chip_write_256,
.unlock = spi_disable_blockprotect,
.block_erasers =
{
{
.eraseblocks = { {4 * 1024, 4096} },
.block_erase = spi_block_erase_20,
}, {
.eraseblocks = { {32 * 1024, 512} },
.block_erase = spi_block_erase_52,
}, {
.eraseblocks = { {64 * 1024, 256} },
.block_erase = spi_block_erase_d8,
}, {
.eraseblocks = { {16 * 1024 * 1024, 1} },
.block_erase = spi_block_erase_60,
}, {
.eraseblocks = { {16 * 1024 * 1024, 1} },
.block_erase = spi_block_erase_c7,
}
},
};
struct flashrom_flashctx flash = { 0 };
struct flashrom_layout *layout;
/*
* Dummyflasher is capable to emulate a chip, so we ask it to do this.
* Nothing to mock, dummy is taking care of this already.
*/
char *param_dup = strdup("bus=spi,emulate=W25Q128FV");
setup_chip(&flash, &layout, &chip, param_dup);
const char *const filename = "read_chip.test";
printf("Read chip operation started.\n");
assert_int_equal(0, do_read(&flash, filename));
printf("Read chip operation done.\n");
teardown(&layout);
free(param_dup);
}
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