[flashrom-gerrit] Change in flashrom[master]: realtek_mst_i2c_spi.c: Show MCU running fw version

[Edward O'Callaghan (Code Review)]

Edward O'Callaghan has uploaded this change for review. ( https://review.coreboot.org/c/flashrom/+/41158 )

Change subject: realtek_mst_i2c_spi.c: Show MCU running fw version
......................................................................

realtek_mst_i2c_spi.c: Show MCU running fw version

NOT-FOR-MERGE yet.

Change-Id: I85eafd95833f7a280c46947e280f967489d1b8d1
Signed-off-by: Edward O'Callaghan 
---
M realtek_mst_i2c_spi.c
1 file changed, 26 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/58/41158/1

diff --git a/realtek_mst_i2c_spi.c b/realtek_mst_i2c_spi.c
index 5c1b901..68ee1a7 100644
--- a/realtek_mst_i2c_spi.c
+++ b/realtek_mst_i2c_spi.c
@@ -146,6 +146,28 @@
    return ret;
 }

+static int realtek_mst_i2c_spi_version(int fd)
+{
+	int ret = 0;
+
+	uint8_t command[] = { 0x70, 0x04 };
+	ret = realtek_mst_i2c_spi_write_data(fd, REGISTER_ADDRESS, command, 2);
+	uint8_t buf[3];
+	ret |= realtek_mst_i2c_spi_read_data(fd, REGISTER_ADDRESS, buf, 3);
+	printf("(flash): projectID = %d\n", ((buf[1] & 0xC0) >> 6) + (buf[0] << 2));
+	printf("(flash): version = %d.%d\n", (buf[1] & 0x3F), buf[2]);
+
+	uint8_t x0, x1, x2;
+	ret |= realtek_mst_i2c_spi_read_register(fd, 0x03, &x0);
+	ret |= realtek_mst_i2c_spi_read_register(fd, 0x04, &x1);
+	ret |= realtek_mst_i2c_spi_read_register(fd, 0x07, &x2);
+
+	printf("(reg): projectID = %d\n", ((x1 & 0xC0) >> 6) + (x0 << 2));
+	printf("(reg): version = %d.%d\n", (x1 & 0x3F), x2);
+
+	return ret;
+}
+
 static int realtek_mst_i2c_spi_toggle_protection(int fd, int enable)
 {
    int ret = 0;
@@ -461,6 +483,10 @@
    if (ret)
    	return ret;

+	ret |= realtek_mst_i2c_spi_version(fd);
+	if (ret)
+		return ret;
+
    struct realtek_mst_i2c_spi_data *data = calloc(1, sizeof(struct realtek_mst_i2c_spi_data));
    if (!data) {
    	msg_perr("Unable to allocate space for extra SPI master data.\n");