From c831ccfc9e04771e6049a9b601d25d62d229e57c Mon Sep 17 00:00:00 2001
From: Ralph Metzler <rjkm@metzlerbros.de>
Date: Wed, 2 May 2018 15:39:09 +0200
Subject: [PATCH] add check for minimum FPGA firmware version

---
 ddbridge/ddbridge-hw.c   | 4 ++++
 ddbridge/ddbridge-main.c | 7 +++++++
 ddbridge/ddbridge.h      | 3 ++-
 3 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/ddbridge/ddbridge-hw.c b/ddbridge/ddbridge-hw.c
index b21f20a..f03b818 100644
--- a/ddbridge/ddbridge-hw.c
+++ b/ddbridge/ddbridge-hw.c
@@ -336,6 +336,7 @@ static const struct ddb_info ddb_v7a = {
 	.board_control   = 2,
 	.board_control_2 = 4,
 	.ts_quirks = TS_QUIRK_REVERSED,
+	.hw_min    = 0x010007,
 };
 
 static const struct ddb_info ddb_v7 = {
@@ -347,6 +348,7 @@ static const struct ddb_info ddb_v7 = {
 	.board_control   = 2,
 	.board_control_2 = 4,
 	.ts_quirks = TS_QUIRK_REVERSED,
+	.hw_min    = 0x010007,
 };
 
 static const struct ddb_info ddb_ctv7 = {
@@ -391,6 +393,7 @@ static const struct ddb_info ddb_ci_s2_pro = {
 	.i2c_mask = 0x01,
 	.board_control   = 2,
 	.board_control_2 = 4,
+	.hw_min    = 0x010007,
 };
 
 static const struct ddb_info ddb_ci_s2_pro_a = {
@@ -401,6 +404,7 @@ static const struct ddb_info ddb_ci_s2_pro_a = {
 	.i2c_mask = 0x01,
 	.board_control   = 2,
 	.board_control_2 = 4,
+	.hw_min    = 0x010007,
 };
 
 static const struct ddb_info ddb_dvbct = {
diff --git a/ddbridge/ddbridge-main.c b/ddbridge/ddbridge-main.c
index 49bfe93..b5d16f2 100644
--- a/ddbridge/ddbridge-main.c
+++ b/ddbridge/ddbridge-main.c
@@ -337,6 +337,13 @@ static int __devinit ddb_probe(struct pci_dev *pdev,
 
 	dev_info(dev->dev, "HW %08x REGMAP %08x\n",
 		 dev->link[0].ids.hwid, dev->link[0].ids.regmapid);
+	if ((dev->link[0].ids.hwid & 0xffffff) <
+	    dev->link[0].info->hw_min) {
+		u32 min = dev->link[0].info->hw_min;
+
+		dev_err(dev->dev, "Update firmware to at least version %u.%u to ensure full functionality!\n",
+			 (min & 0xff0000) >> 16, min & 0xffff);
+	}
 
 	if (dev->link[0].info->ns_num) {
 		ddbwritel(dev, 0, ETHER_CONTROL);
diff --git a/ddbridge/ddbridge.h b/ddbridge/ddbridge.h
index 7958a0a..efd3c8f 100644
--- a/ddbridge/ddbridge.h
+++ b/ddbridge/ddbridge.h
@@ -167,6 +167,7 @@ struct ddb_info {
 	u8    ns_num;
 	u8    con_clock; /* use a continuous clock */
 	u8    ts_quirks;
+	u8    mci;
 #define TS_QUIRK_SERIAL    1
 #define TS_QUIRK_REVERSED  2
 #define TS_QUIRK_NO_OUTPUT 4
@@ -174,7 +175,7 @@ struct ddb_info {
 	u32   tempmon_irq;
 	u32   lostlock_irq;
 	u32   mdio_base;
-	u8    mci;
+	u32   hw_min;
 	const struct ddb_regmap *regmap;
 };