recipes-wifi/linux-mt76/files/patches-3.x/0016-wifi-mt76-mt7996-add-dsp-firmware-download.patch

From a23a49eb89ce2abc3370f452bc1915a061b864bd Mon Sep 17 00:00:00 2001
From: Peter Chiu <chui-hao.chiu@mediatek.com>
Date: Fri, 17 Feb 2023 14:13:38 +0800
Subject: [PATCH 16/29] wifi: mt76: mt7996: add dsp firmware download

Add DSP firmware for phy related control. Without this patch,the
firmware state would not be ready.

Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com>
---
 mt76_connac_mcu.h |  1 +
 mt7996/mcu.c      | 94 +++++++++++++++++++++--------------------------
 mt7996/mt7996.h   |  7 ++++
 mt7996/pci.c      |  1 +
 4 files changed, 50 insertions(+), 53 deletions(-)

diff --git a/mt76_connac_mcu.h b/mt76_connac_mcu.h
index fa10d82..79dde31 100644
--- a/mt76_connac_mcu.h
+++ b/mt76_connac_mcu.h
@@ -22,6 +22,7 @@
 
 #define FW_START_OVERRIDE		BIT(0)
 #define FW_START_WORKING_PDA_CR4	BIT(2)
+#define FW_START_WORKING_PDA_DSP	BIT(3)
 
 #define PATCH_SEC_NOT_SUPPORT		GENMASK(31, 0)
 #define PATCH_SEC_TYPE_MASK		GENMASK(15, 0)
diff --git a/mt7996/mcu.c b/mt7996/mcu.c
index a949ff7..09800ff 100644
--- a/mt7996/mcu.c
+++ b/mt7996/mcu.c
@@ -2353,7 +2353,7 @@ out:
 static int
 mt7996_mcu_send_ram_firmware(struct mt7996_dev *dev,
 			     const struct mt7996_fw_trailer *hdr,
-			     const u8 *data, bool is_wa)
+			     const u8 *data, enum mt7996_ram_type type)
 {
 	int i, offset = 0;
 	u32 override = 0, option = 0;
@@ -2365,8 +2365,10 @@ mt7996_mcu_send_ram_firmware(struct mt7996_dev *dev,
 
 		region = (const struct mt7996_fw_region *)((const u8 *)hdr -
 			 (hdr->n_region - i) * sizeof(*region));
+		/* DSP and WA use same mode */
 		mode = mt76_connac_mcu_gen_dl_mode(&dev->mt76,
-						   region->feature_set, is_wa);
+						   region->feature_set,
+						   type != MT7996_RAM_TYPE_WM);
 		len = le32_to_cpu(region->len);
 		addr = le32_to_cpu(region->addr);
 
@@ -2393,8 +2395,10 @@ mt7996_mcu_send_ram_firmware(struct mt7996_dev *dev,
 	if (override)
 		option |= FW_START_OVERRIDE;
 
-	if (is_wa)
+	if (type == MT7996_RAM_TYPE_WA)
 		option |= FW_START_WORKING_PDA_CR4;
+	else if (type == MT7996_RAM_TYPE_DSP)
+		option |= FW_START_WORKING_PDA_DSP;
 
 	return mt76_connac_mcu_start_firmware(&dev->mt76, override, option);
 }
@@ -2405,56 +2409,40 @@ static int mt7996_load_ram(struct mt7996_dev *dev)
 	const struct firmware *fw;
 	int ret;
 
-	ret = request_firmware(&fw, MT7996_FIRMWARE_WM, dev->mt76.dev);
-	if (ret)
-		return ret;
-
-	if (!fw || !fw->data || fw->size < sizeof(*hdr)) {
-		dev_err(dev->mt76.dev, "Invalid firmware\n");
-		ret = -EINVAL;
-		goto out;
-	}
-
-	hdr = (const struct mt7996_fw_trailer *)(fw->data + fw->size - sizeof(*hdr));
-
-	dev_info(dev->mt76.dev, "WM Firmware Version: %.10s, Build Time: %.15s\n",
-		 hdr->fw_ver, hdr->build_date);
-
-	ret = mt7996_mcu_send_ram_firmware(dev, hdr, fw->data, false);
-	if (ret) {
-		dev_err(dev->mt76.dev, "Failed to start WM firmware\n");
-		goto out;
-	}
-
-	release_firmware(fw);
-
-	ret = request_firmware(&fw, MT7996_FIRMWARE_WA, dev->mt76.dev);
-	if (ret)
-		return ret;
-
-	if (!fw || !fw->data || fw->size < sizeof(*hdr)) {
-		dev_err(dev->mt76.dev, "Invalid firmware\n");
-		ret = -EINVAL;
-		goto out;
-	}
-
-	hdr = (const struct mt7996_fw_trailer *)(fw->data + fw->size - sizeof(*hdr));
-
-	dev_info(dev->mt76.dev, "WA Firmware Version: %.10s, Build Time: %.15s\n",
-		 hdr->fw_ver, hdr->build_date);
-
-	ret = mt7996_mcu_send_ram_firmware(dev, hdr, fw->data, true);
-	if (ret) {
-		dev_err(dev->mt76.dev, "Failed to start WA firmware\n");
-		goto out;
-	}
-
-	snprintf(dev->mt76.hw->wiphy->fw_version,
-		 sizeof(dev->mt76.hw->wiphy->fw_version),
-		 "%.10s-%.15s", hdr->fw_ver, hdr->build_date);
-
-out:
-	release_firmware(fw);
+#define LOAD_RAM(_type) \
+	do {									\
+		ret = request_firmware(&fw, MT7996_FIRMWARE_##_type, dev->mt76.dev);	\
+		if (ret)							\
+			return ret;						\
+										\
+		if (!fw || !fw->data || fw->size < sizeof(*hdr)) {		\
+			dev_err(dev->mt76.dev, "Invalid firmware\n");		\
+			release_firmware(fw);					\
+			return -EINVAL;						\
+		}								\
+										\
+		hdr = (const struct mt7996_fw_trailer *)			\
+				(fw->data + fw->size - sizeof(*hdr));		\
+										\
+		dev_info(dev->mt76.dev,						\
+			 "%s Firmware Version: %.10s, Build Time: %.15s\n",	\
+			 #_type, hdr->fw_ver, hdr->build_date);			\
+										\
+		ret = mt7996_mcu_send_ram_firmware(dev, hdr, fw->data,		\
+						   MT7996_RAM_TYPE_##_type);    \
+		if (ret) {							\
+			dev_err(dev->mt76.dev, "Failed to start %s firmware\n", #_type);\
+			release_firmware(fw);					\
+			return ret;						\
+		}								\
+										\
+		release_firmware(fw);						\
+	} while (0)
+
+	LOAD_RAM(WM);
+	LOAD_RAM(DSP);
+	LOAD_RAM(WA);
+#undef LOAD_RAM
 
 	return ret;
 }
diff --git a/mt7996/mt7996.h b/mt7996/mt7996.h
index 923e6fc..c2f8900 100644
--- a/mt7996/mt7996.h
+++ b/mt7996/mt7996.h
@@ -29,6 +29,7 @@
 
 #define MT7996_FIRMWARE_WA		"mediatek/mt7996/mt7996_wa.bin"
 #define MT7996_FIRMWARE_WM		"mediatek/mt7996/mt7996_wm.bin"
+#define MT7996_FIRMWARE_DSP		"mediatek/mt7996/mt7996_dsp.bin"
 #define MT7996_ROM_PATCH		"mediatek/mt7996/mt7996_rom_patch.bin"
 
 #define MT7996_EEPROM_DEFAULT		"mediatek/mt7996/mt7996_eeprom.bin"
@@ -55,6 +56,12 @@ struct mt7996_sta;
 struct mt7996_dfs_pulse;
 struct mt7996_dfs_pattern;
 
+enum mt7996_ram_type {
+	MT7996_RAM_TYPE_WM = 0,
+	MT7996_RAM_TYPE_WA,
+	MT7996_RAM_TYPE_DSP,
+};
+
 enum mt7996_txq_id {
 	MT7996_TXQ_FWDL = 16,
 	MT7996_TXQ_MCU_WM,
diff --git a/mt7996/pci.c b/mt7996/pci.c
index 64aee3f..c530105 100644
--- a/mt7996/pci.c
+++ b/mt7996/pci.c
@@ -219,4 +219,5 @@ MODULE_DEVICE_TABLE(pci, mt7996_pci_device_table);
 MODULE_DEVICE_TABLE(pci, mt7996_hif_device_table);
 MODULE_FIRMWARE(MT7996_FIRMWARE_WA);
 MODULE_FIRMWARE(MT7996_FIRMWARE_WM);
+MODULE_FIRMWARE(MT7996_FIRMWARE_DSP);
 MODULE_FIRMWARE(MT7996_ROM_PATCH);
-- 
2.18.0