linux-kernel - [PATCH] Bluetooth: btrtl: Add support for RTL8852B

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Date:   Mon, 14 Mar 2022 14:54:22 +0800
From:   <max.chou@...ltek.com>
To:     <marcel@...tmann.org>, <alex_lu@...lsil.com.cn>
CC:     <johan.hedberg@...il.com>, <luiz.dentz@...il.com>,
        <linux-bluetooth@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <hildawu@...ltek.com>, <karenhsu@...ltek.com>,
        <kidman@...ltek.com>, <max.chou@...ltek.com>
Subject: [PATCH] Bluetooth: btrtl: Add support for RTL8852B

From: Max Chou <max.chou@...ltek.com>

Add the support for RTL8852B BT controller on USB interface.
The necessary firmware file will be submitted to linux-firmware.

Signed-off-by: Max Chou <max.chou@...ltek.com>
---
 drivers/bluetooth/btrtl.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c
index c2030f7e25b4..481d488bca0f 100644
--- a/drivers/bluetooth/btrtl.c
+++ b/drivers/bluetooth/btrtl.c
@@ -49,6 +49,7 @@ enum btrtl_chip_id {
 	CHIP_ID_8822C = 13,
 	CHIP_ID_8761B,
 	CHIP_ID_8852A = 18,
+	CHIP_ID_8852B = 20,
 };
 
 struct id_table {
@@ -187,6 +188,14 @@ static const struct id_table ic_id_table[] = {
 	  .has_msft_ext = true,
 	  .fw_name  = "rtl_bt/rtl8852au_fw.bin",
 	  .cfg_name = "rtl_bt/rtl8852au_config" },
+
+	/* 8852B */
+	{ IC_INFO(RTL_ROM_LMP_8852A, 0xb, 0xb, HCI_USB),
+	  .config_needed = false,
+	  .has_rom_version = true,
+	  .has_msft_ext = true,
+	  .fw_name  = "rtl_bt/rtl8852bu_fw.bin",
+	  .cfg_name = "rtl_bt/rtl8852bu_config" },
 	};
 
 static const struct id_table *btrtl_match_ic(u16 lmp_subver, u16 hci_rev,
@@ -295,6 +304,7 @@ static int rtlbt_parse_firmware(struct hci_dev *hdev,
 		{ RTL_ROM_LMP_8822B, 13 },	/* 8822C */
 		{ RTL_ROM_LMP_8761A, 14 },	/* 8761B */
 		{ RTL_ROM_LMP_8852A, 18 },	/* 8852A */
+		{ RTL_ROM_LMP_8852A, 20 },	/* 8852B */
 	};
 
 	min_size = sizeof(struct rtl_epatch_header) + sizeof(extension_sig) + 3;
@@ -757,6 +767,7 @@ void btrtl_set_quirks(struct hci_dev *hdev, struct btrtl_device_info *btrtl_dev)
 	switch (btrtl_dev->project_id) {
 	case CHIP_ID_8822C:
 	case CHIP_ID_8852A:
+	case CHIP_ID_8852B:
 		set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks);
 		set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks);
 		hci_set_aosp_capable(hdev);
@@ -934,3 +945,5 @@ MODULE_FIRMWARE("rtl_bt/rtl8822b_fw.bin");
 MODULE_FIRMWARE("rtl_bt/rtl8822b_config.bin");
 MODULE_FIRMWARE("rtl_bt/rtl8852au_fw.bin");
 MODULE_FIRMWARE("rtl_bt/rtl8852au_config.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8852bu_fw.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8852bu_config.bin");
-- 
2.17.1