| /* |
| * Copyright 2012, Google Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials provided |
| * with the distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include <limits.h> |
| #include <stdarg.h> |
| #include <stddef.h> |
| #include <setjmp.h> |
| #include <stdio.h> |
| #include <string.h> |
| |
| #include "cmockery.h" |
| |
| #include "mosys/file_backed_range.h" |
| #include "mosys/platform.h" |
| |
| #include "mosys/globals.h" |
| |
| #include "intf/io.h" |
| |
| |
| #define IO_DATA_PATH "io/" /* relative to the test data prefix */ |
| |
| static struct platform_intf *intf; |
| |
| /* Test a range with an address out of bounds */ |
| static void bad_address(void **state) |
| { |
| uint8_t data; |
| static struct file_backed_range out_of_bounds_file_ranges[] = { |
| FILE_BACKED_RANGE_INIT(0, 0x10, "/dev/port"), |
| FILE_BACKED_RANGE_END |
| }; |
| struct file_backed_range *saved_file_ranges = intf->op->io->ranges; |
| |
| intf->op->io->ranges = out_of_bounds_file_ranges; |
| assert_int_equal(0, intf->op->io->setup(intf)); |
| |
| assert_int_equal(-1, |
| intf->op->io->read(intf, 0x20, IO_ACCESS_8, &data)); |
| |
| assert_int_equal(-1, |
| intf->op->io->write(intf, 0x20, IO_ACCESS_8, &data)); |
| |
| /* restore the original value */ |
| intf->op->io->ranges = saved_file_ranges; |
| intf->op->io->destroy(intf); |
| } |
| |
| /* Test a non-existing dev file */ |
| static void open_nonexistent_file(void **state) |
| { |
| uint8_t data; |
| static struct file_backed_range nonexistent_file_ranges[] = { |
| FILE_BACKED_RANGE_INIT(0, 0x10000, "nonexistent"), |
| FILE_BACKED_RANGE_END |
| }; |
| struct file_backed_range *saved_file_ranges = intf->op->io->ranges; |
| |
| intf->op->io->ranges = nonexistent_file_ranges; |
| assert_int_equal(0, intf->op->io->setup(intf)); |
| |
| assert_int_equal(-1, intf->op->io->read(intf, 0, IO_ACCESS_8, &data)); |
| |
| intf->op->io->ranges = saved_file_ranges; |
| intf->op->io->destroy(intf); |
| } |
| |
| /* Test a bad read by having a range larger than the actual dev file */ |
| static void read_eof(void **state) |
| { |
| uint8_t data; |
| static struct file_backed_range oversize_file_ranges[] = { |
| FILE_BACKED_RANGE_INIT(0, 0x10000, "/dev/port"), |
| FILE_BACKED_RANGE_END |
| }; |
| struct file_backed_range *saved_file_ranges = intf->op->io->ranges; |
| |
| intf->op->io->ranges = oversize_file_ranges; |
| assert_int_equal(0, intf->op->io->setup(intf)); |
| |
| assert_int_equal(-1, intf->op->io->read(intf, 0xffff, |
| IO_ACCESS_8, &data)); |
| |
| /* restore the original value */ |
| intf->op->io->ranges = saved_file_ranges; |
| intf->op->io->destroy(intf); |
| } |
| |
| static void io_read_test(void **state) |
| { |
| int ret; |
| uint8_t data8; |
| uint16_t data16; |
| uint32_t data32; |
| |
| /* 8 bit read */ |
| data8 = 0xff; |
| ret = intf->op->io->read(intf, 0, IO_ACCESS_8, &data8); |
| assert_int_equal(0, ret); |
| assert_int_equal(0x00, (int) data8); |
| /* now through inlines */ |
| data8 = 0xff; |
| ret = io_read(intf, 0, IO_ACCESS_8, &data8); |
| assert_int_equal(0, ret); |
| assert_int_equal(0x00, (int) data8); |
| data8 = 0xff; |
| ret = io_read8(intf, 0, &data8); |
| assert_int_equal(0, ret); |
| assert_int_equal(0x00, (int) data8); |
| |
| /* 16 bit read */ |
| data16 = 0xffff; |
| ret = intf->op->io->read(intf, 0, IO_ACCESS_16, &data16); |
| assert_int_equal(0, ret); |
| assert_int_equal(0x0100, data16); |
| /* now through inlines */ |
| data16 = 0xffff; |
| ret = io_read16(intf, 0, &data16); |
| assert_int_equal(0, ret); |
| assert_int_equal(0x0100, data16); |
| |
| /* 32 bit read */ |
| data32 = 0xffffffff; |
| ret = intf->op->io->read(intf, 0, IO_ACCESS_32, &data32); |
| assert_int_equal(0, ret); |
| assert_int_equal(0x03020100, data32); |
| /* now through inlines */ |
| data32 = 0xffffffff; |
| ret = io_read32(intf, 0, &data32); |
| assert_int_equal(0, ret); |
| assert_int_equal(0x03020100, data32); |
| } |
| |
| static void io_write_test(void **state) |
| { |
| int ret; |
| uint8_t data8, orig8; |
| uint16_t data16, orig16; |
| uint32_t data32, orig32; |
| |
| /* 8 bit write */ |
| data8 = 0xff; |
| ret = intf->op->io->read(intf, 0, IO_ACCESS_8, &orig8); |
| assert_int_equal(0, ret); |
| ret = intf->op->io->write(intf, 0, IO_ACCESS_8, &data8); |
| assert_int_equal(0, ret); |
| data8 = 0; |
| ret = intf->op->io->read(intf, 0, IO_ACCESS_8, &data8); |
| assert_int_equal(0, ret); |
| assert_int_equal(0xff, (int) data8); |
| ret = intf->op->io->write(intf, 0, IO_ACCESS_8, &orig8); |
| assert_int_equal(0, ret); |
| /* now through inlines */ |
| data8 = 0xff; |
| ret = io_write(intf, 0, IO_ACCESS_8, &data8); |
| assert_int_equal(0, ret); |
| data8 = 0; |
| ret = intf->op->io->read(intf, 0, IO_ACCESS_8, &data8); |
| assert_int_equal(0, ret); |
| assert_int_equal(0xff, (int) data8); |
| ret = intf->op->io->write(intf, 0, IO_ACCESS_8, &orig8); |
| assert_int_equal(0, ret); |
| data8 = 0xff; |
| ret = io_write8(intf, 0, data8); |
| assert_int_equal(0, ret); |
| data8 = 0; |
| ret = intf->op->io->read(intf, 0, IO_ACCESS_8, &data8); |
| assert_int_equal(0, ret); |
| assert_int_equal(0xff, (int) data8); |
| ret = intf->op->io->write(intf, 0, IO_ACCESS_8, &orig8); |
| assert_int_equal(0, ret); |
| |
| /* 16 bit write */ |
| data16 = 0xffff; |
| ret = intf->op->io->read(intf, 0, IO_ACCESS_16, &orig16); |
| assert_int_equal(0, ret); |
| ret = intf->op->io->write(intf, 0, IO_ACCESS_16, &data16); |
| assert_int_equal(0, ret); |
| data16 = 0; |
| ret = intf->op->io->read(intf, 0, IO_ACCESS_16, &data16); |
| assert_int_equal(0, ret); |
| assert_int_equal(0xffff, data16); |
| ret = intf->op->io->write(intf, 0, IO_ACCESS_16, &orig16); |
| assert_int_equal(0, ret); |
| /* now through inlines */ |
| data16 = 0xffff; |
| ret = io_write16(intf, 0, data16); |
| assert_int_equal(0, ret); |
| data16 = 0; |
| ret = intf->op->io->read(intf, 0, IO_ACCESS_16, &data16); |
| assert_int_equal(0, ret); |
| assert_int_equal(0xffff, data16); |
| ret = intf->op->io->write(intf, 0, IO_ACCESS_16, &orig16); |
| assert_int_equal(0, ret); |
| |
| /* 32 bit write */ |
| data32 = 0xffffffff; |
| ret = intf->op->io->read(intf, 0, IO_ACCESS_32, &orig32); |
| assert_int_equal(0, ret); |
| ret = intf->op->io->write(intf, 0, IO_ACCESS_32, &data32); |
| assert_int_equal(0, ret); |
| data32 = 0; |
| ret = intf->op->io->read(intf, 0, IO_ACCESS_32, &data32); |
| assert_int_equal(0, ret); |
| assert_int_equal(0xffffffff, data32); |
| ret = intf->op->io->write(intf, 0, IO_ACCESS_32, &orig32); |
| assert_int_equal(0, ret); |
| /* now through inlines */ |
| data32 = 0xffffffff; |
| ret = io_write32(intf, 0, data32); |
| assert_int_equal(0, ret); |
| data32 = 0; |
| ret = intf->op->io->read(intf, 0, IO_ACCESS_32, &data32); |
| assert_int_equal(0, ret); |
| assert_int_equal(0xffffffff, data32); |
| ret = intf->op->io->write(intf, 0, IO_ACCESS_32, &orig32); |
| assert_int_equal(0, ret); |
| } |
| |
| int io_unittest(struct platform_intf *_intf) |
| { |
| int ret; |
| char root_prefix_for_test[PATH_MAX]; |
| char *root_prefix_orig; |
| UnitTest tests[] = { |
| unit_test(bad_address), |
| unit_test(open_nonexistent_file), |
| unit_test(read_eof), |
| unit_test(io_read_test), |
| unit_test(io_write_test), |
| }; |
| |
| intf = _intf; |
| intf->op->io = &io_intf; |
| |
| root_prefix_orig = strdup(mosys_get_root_prefix()); |
| sprintf(root_prefix_for_test, "%s/%s", root_prefix_orig, IO_DATA_PATH); |
| printf("data root prefix: %s\n", root_prefix_for_test); |
| mosys_set_root_prefix(root_prefix_for_test); |
| |
| intf->op->io->setup(intf); |
| ret = run_tests(tests); |
| mosys_set_root_prefix(root_prefix_orig); |
| |
| free(root_prefix_orig); |
| return ret; |
| } |