tests: Split lifecycle test file into per-programmer files

This patch creates individual files for each programmer's lifecycle
tests. Common functions that are reusable for all tests are
gathered in lifecycle.c. Each individual file needs to include
lifecycle.h

BUG=b:237606255
TEST=ninja test

Change-Id: If2307699dcbb3a085b91a2dcd41156e6fd07f812
Signed-off-by: Anastasia Klimchuk <aklm@chromium.org>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/65543
Reviewed-by: Peter Marheine <pmarheine@chromium.org>
Reviewed-by: Felix Singer <felixsinger@posteo.net>
Reviewed-by: Edward O'Callaghan <quasisec@chromium.org>
Reviewed-by: Thomas Heijligen <src@posteo.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

1 files changed, 72 insertions, 0 deletions

diff --git a/tests/linux_spi.c b/tests/linux_spi.c
new file mode 100644
index 00000000..2e3dc95f
--- /dev/null
+++ b/tests/linux_spi.c
@@ -0,0 +1,72 @@
+/*
+ * 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 "lifecycle.h"
+
+#if CONFIG_LINUX_SPI == 1
+static int linux_spi_ioctl(void *state, int fd, unsigned long request, va_list args) {
+
+	if (request == SPI_IOC_MESSAGE(2)) { /* ioctl code for read request */
+		struct spi_ioc_transfer* msg = va_arg(args, struct spi_ioc_transfer*);
+
+		/* First message has write array and write count */
+		unsigned int writecnt = msg[0].len;
+		unsigned char *writearr = (unsigned char *)msg[0].tx_buf;
+		/* Second message has read array and read count */
+		unsigned int readcnt = msg[1].len;
+
+		/* Detect probing */
+		if (writecnt == 1 && writearr[0] == JEDEC_RDID && readcnt == 3) {
+			/* We need to populate read array. */
+			unsigned char *readarr = (unsigned char *)msg[1].rx_buf;
+			readarr[0] = 0xEF; /* WINBOND_NEX_ID */
+			readarr[1] = 0x40; /* WINBOND_NEX_W25Q128_V left byte */
+			readarr[2] = 0x18; /* WINBOND_NEX_W25Q128_V right byte */
+		}
+	}
+
+	return 0;
+}
+
+static char *linux_spi_fgets(void *state, char *buf, int len, FILE *fp)
+{
+	/* Emulate reading max buffer size from sysfs. */
+	const char *max_buf_size = "1048576";
+
+	return memcpy(buf, max_buf_size, min(len, strlen(max_buf_size) + 1));
+}
+
+void linux_spi_probe_lifecycle_test_success(void **state)
+{
+	/*
+	 * Current implementation tests a particular path of the init procedure.
+	 * Specifically, it is reading the buffer size from sysfs.
+	 */
+	struct io_mock_fallback_open_state linux_spi_fallback_open_state = {
+		.noc = 0,
+		.paths = { "/dev/null", NULL },
+		.flags = { O_RDWR },
+	};
+	const struct io_mock linux_spi_io = {
+		.fgets	= linux_spi_fgets,
+		.ioctl	= linux_spi_ioctl,
+		.fallback_open_state = &linux_spi_fallback_open_state,
+	};
+
+	run_probe_lifecycle(state, &linux_spi_io, &programmer_linux_spi, "dev=/dev/null", "W25Q128.V");
+}
+#else
+	SKIP_TEST(linux_spi_probe_lifecycle_test_success)
+#endif /* CONFIG_LINUX_SPI */