diff --git a/tests/qtest/meson.build b/tests/qtest/meson.build index f33d84d19b..721eafad12 100644 --- a/tests/qtest/meson.build +++ b/tests/qtest/meson.build @@ -190,6 +190,7 @@ qtests_npcm7xx = \ 'npcm7xx_gpio-test', 'npcm7xx_pwm-test', 'npcm7xx_rng-test', + 'npcm7xx_sdhci-test', 'npcm7xx_smbus-test', 'npcm7xx_timer-test', 'npcm7xx_watchdog_timer-test'] + \ diff --git a/tests/qtest/npcm7xx_sdhci-test.c b/tests/qtest/npcm7xx_sdhci-test.c new file mode 100644 index 0000000000..c1f496fb29 --- /dev/null +++ b/tests/qtest/npcm7xx_sdhci-test.c @@ -0,0 +1,215 @@ +/* + * QTests for NPCM7xx SD-3.0 / MMC-4.51 Host Controller + * + * Copyright (c) 2022 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; either version 2 of the License, or + * (at your option) any later version. + * + * 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 "qemu/osdep.h" +#include "hw/sd/npcm7xx_sdhci.h" + +#include "libqos/libqtest.h" +#include "libqtest-single.h" +#include "libqos/sdhci-cmd.h" + +#define NPCM7XX_REG_SIZE 0x100 +#define NPCM7XX_MMC_BA 0xF0842000 +#define NPCM7XX_BLK_SIZE 512 +#define NPCM7XX_TEST_IMAGE_SIZE (1 << 30) + +char *sd_path; + +static QTestState *setup_sd_card(void) +{ + QTestState *qts = qtest_initf( + "-machine kudo-bmc " + "-device sd-card,drive=drive0 " + "-drive id=drive0,if=none,file=%s,format=raw,auto-read-only=off", + sd_path); + + qtest_writew(qts, NPCM7XX_MMC_BA + SDHC_SWRST, SDHC_RESET_ALL); + qtest_writew(qts, NPCM7XX_MMC_BA + SDHC_CLKCON, + SDHC_CLOCK_SDCLK_EN | SDHC_CLOCK_INT_STABLE | + SDHC_CLOCK_INT_EN); + sdhci_cmd_regs(qts, NPCM7XX_MMC_BA, 0, 0, 0, 0, SDHC_APP_CMD); + sdhci_cmd_regs(qts, NPCM7XX_MMC_BA, 0, 0, 0x41200000, 0, (41 << 8)); + sdhci_cmd_regs(qts, NPCM7XX_MMC_BA, 0, 0, 0, 0, SDHC_ALL_SEND_CID); + sdhci_cmd_regs(qts, NPCM7XX_MMC_BA, 0, 0, 0, 0, SDHC_SEND_RELATIVE_ADDR); + sdhci_cmd_regs(qts, NPCM7XX_MMC_BA, 0, 0, 0x45670000, 0, + SDHC_SELECT_DESELECT_CARD); + + return qts; +} + +static void write_sdread(QTestState *qts, const char *msg) +{ + int fd, ret; + size_t len = strlen(msg); + char *rmsg = g_malloc(len); + + /* write message to sd */ + fd = open(sd_path, O_WRONLY); + g_assert(fd >= 0); + ret = write(fd, msg, len); + close(fd); + g_assert(ret == len); + + /* read message using sdhci */ + ret = sdhci_read_cmd(qts, NPCM7XX_MMC_BA, rmsg, len); + g_assert(ret == len); + g_assert(!memcmp(rmsg, msg, len)); + + g_free(rmsg); +} + +/* Check MMC can read values from sd */ +static void test_read_sd(void) +{ + QTestState *qts = setup_sd_card(); + + write_sdread(qts, "hello world"); + write_sdread(qts, "goodbye"); + + qtest_quit(qts); +} + +static void sdwrite_read(QTestState *qts, const char *msg) +{ + int fd, ret; + size_t len = strlen(msg); + char *rmsg = g_malloc(len); + + /* write message using sdhci */ + sdhci_write_cmd(qts, NPCM7XX_MMC_BA, msg, len, NPCM7XX_BLK_SIZE); + + /* read message from sd */ + fd = open(sd_path, O_RDONLY); + g_assert(fd >= 0); + ret = read(fd, rmsg, len); + close(fd); + g_assert(ret == len); + + g_assert(!memcmp(rmsg, msg, len)); + + g_free(rmsg); +} + +/* Check MMC can write values to sd */ +static void test_write_sd(void) +{ + QTestState *qts = setup_sd_card(); + + sdwrite_read(qts, "hello world"); + sdwrite_read(qts, "goodbye"); + + qtest_quit(qts); +} + +/* Check SDHCI has correct default values. */ +static void test_reset(void) +{ + QTestState *qts = qtest_init("-machine kudo-bmc"); + uint64_t addr = NPCM7XX_MMC_BA; + uint64_t end_addr = addr + NPCM7XX_REG_SIZE; + uint16_t prstvals_resets[] = {NPCM7XX_PRSTVALS_0_RESET, + NPCM7XX_PRSTVALS_1_RESET, + 0, + NPCM7XX_PRSTVALS_3_RESET, + 0, + 0}; + int i; + uint32_t mask; + + while (addr < end_addr) { + switch (addr - NPCM7XX_MMC_BA) { + case SDHC_PRNSTS: + /* + * ignores bits 20 to 24: they are changed when reading registers + */ + mask = 0x1f00000; + g_assert_cmphex(qtest_readl(qts, addr) | mask, ==, + NPCM7XX_PRSNTS_RESET | mask); + addr += 4; + break; + case SDHC_BLKGAP: + g_assert_cmphex(qtest_readb(qts, addr), ==, NPCM7XX_BLKGAP_RESET); + addr += 1; + break; + case SDHC_CAPAB: + g_assert_cmphex(qtest_readq(qts, addr), ==, NPCM7XX_CAPAB_RESET); + addr += 8; + break; + case SDHC_MAXCURR: + g_assert_cmphex(qtest_readq(qts, addr), ==, NPCM7XX_MAXCURR_RESET); + addr += 8; + break; + case SDHC_HCVER: + g_assert_cmphex(qtest_readw(qts, addr), ==, NPCM7XX_HCVER_RESET); + addr += 2; + break; + case NPCM7XX_PRSTVALS: + for (i = 0; i < NPCM7XX_PRSTVALS_SIZE; ++i) { + g_assert_cmphex(qtest_readw(qts, addr + 2 * i), ==, + prstvals_resets[i]); + } + addr += NPCM7XX_PRSTVALS_SIZE * 2; + break; + default: + g_assert_cmphex(qtest_readb(qts, addr), ==, 0); + addr += 1; + } + } + + qtest_quit(qts); +} + +static void drive_destroy(void) +{ + unlink(sd_path); + g_free(sd_path); +} + +static void drive_create(void) +{ + int fd, ret; + GError *error = NULL; + + /* Create a temporary raw image */ + fd = g_file_open_tmp("sdhci_XXXXXX", &sd_path, &error); + if (fd == -1) { + fprintf(stderr, "unable to create sdhci file: %s\n", error->message); + g_error_free(error); + } + g_assert(sd_path != NULL); + + ret = ftruncate(fd, NPCM7XX_TEST_IMAGE_SIZE); + g_assert_cmpint(ret, ==, 0); + g_message("%s", sd_path); + close(fd); +} + +int main(int argc, char **argv) +{ + int ret; + + drive_create(); + + g_test_init(&argc, &argv, NULL); + + qtest_add_func("npcm7xx_sdhci/reset", test_reset); + qtest_add_func("npcm7xx_sdhci/write_sd", test_write_sd); + qtest_add_func("npcm7xx_sdhci/read_sd", test_read_sd); + + ret = g_test_run(); + drive_destroy(); + return ret; +}