linux-kernel - [PATCH v8 6/7] Bluetooth: btqca: Add wcn3990 firmware download support.

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Message-Id: <20180625134013.19684-7-bgodavar@codeaurora.org>
Date:   Mon, 25 Jun 2018 19:10:12 +0530
From:   Balakrishna Godavarthi <bgodavar@...eaurora.org>
To:     marcel@...tmann.org, johan.hedberg@...il.com, mka@...omium.org
Cc:     linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        linux-bluetooth@...r.kernel.org, rtatiya@...eaurora.org,
        hemantg@...eaurora.org, linux-arm-msm@...r.kernel.org,
        Balakrishna Godavarthi <bgodavar@...eaurora.org>
Subject: [PATCH v8 6/7] Bluetooth: btqca: Add wcn3990 firmware download support.

This patch enables the RAM and NV patch download for wcn3990.

Signed-off-by: Balakrishna Godavarthi <bgodavar@...eaurora.org>
Reviewed-by: Matthias Kaehlcke <mka@...omium.org>
---
 drivers/bluetooth/btqca.c | 26 +++++++++++++++++++++-----
 1 file changed, 21 insertions(+), 5 deletions(-)

diff --git a/drivers/bluetooth/btqca.c b/drivers/bluetooth/btqca.c
index 3b25be1be19c..25ef67739de0 100644
--- a/drivers/bluetooth/btqca.c
+++ b/drivers/bluetooth/btqca.c
@@ -332,6 +332,7 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
 {
 	struct rome_config config;
 	int err;
+	u8 rom_ver;
 
 	bt_dev_dbg(hdev, "QCA setup on UART");
 
@@ -346,11 +347,21 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
 		}
 		bt_dev_info(hdev, "QCA controller version 0x%08x", soc_ver);
 	}
-
 	/* Download rampatch file */
 	config.type = TLV_TYPE_PATCH;
-	snprintf(config.fwname, sizeof(config.fwname), "qca/rampatch_%08x.bin",
-		 soc_ver);
+	if (soc_type == QCA_WCN3990) {
+		/* Firmware files to download are based on ROM version.
+		 * ROM version is derived from last two bytes of soc_ver.
+		 */
+		rom_ver = ((soc_ver & 0x00000f00) >> 0x04) |
+			    (soc_ver & 0x0000000f);
+		snprintf(config.fwname, sizeof(config.fwname),
+			 "qca/crbtfw%02x.tlv", rom_ver);
+	} else {
+		snprintf(config.fwname, sizeof(config.fwname),
+			 "qca/rampatch_%08x.bin", soc_ver);
+	}
+
 	err = qca_download_firmware(hdev, &config);
 	if (err < 0) {
 		bt_dev_err(hdev, "QCA Failed to download patch (%d)", err);
@@ -359,8 +370,13 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
 
 	/* Download NVM configuration */
 	config.type = TLV_TYPE_NVM;
-	snprintf(config.fwname, sizeof(config.fwname), "qca/nvm_%08x.bin",
-		 soc_ver);
+	if (soc_type == QCA_WCN3990)
+		snprintf(config.fwname, sizeof(config.fwname),
+			 "qca/crnv%02x.bin", rom_ver);
+	else
+		snprintf(config.fwname, sizeof(config.fwname),
+			 "qca/nvm_%08x.bin", soc_ver);
+
 	err = qca_download_firmware(hdev, &config);
 	if (err < 0) {
 		bt_dev_err(hdev, "QCA Failed to download NVM (%d)", err);
-- 
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