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Message-ID: <20230804055426.6806-1-max.chou@realtek.com>
Date: Fri, 4 Aug 2023 13:54:26 +0800
From: <max.chou@...ltek.com>
To: <marcel@...tmann.org>
CC: <johan.hedberg@...il.com>, <luiz.dentz@...il.com>,
<linux-bluetooth@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<alex_lu@...lsil.com.cn>, <hildawu@...ltek.com>,
<karenhsu@...ltek.com>, <kidman@...ltek.com>,
<max.chou@...ltek.com>, <juerg.haefliger@...onical.com>,
<vicamo.yang@...onical.com>, <Riley.Kao@...l.com>
Subject: [PATCH] Bluetooth: btrtl: Load FW v2 otherwise FW v1 for RTL8852C
From: Max Chou <max.chou@...ltek.com>
In the commit of linux-firmware project, rtl8852cu_fw.bin is updated as
FW v2 format[1]. Consider the case that if driver did not be updated for
FW v2 supported[2], it can not use FW v2.
By Canonical's suggestion, older driver should be able to load FW v1,
so rtl8852cu_fw.bin will be revert to the previous commit as FW v1 and
add rtl8852cu_fw_v2.bin as FW v2. This item will be started on
linux-firmware project.
In this commit, the driver prefers to load FW v2 if available. Fallback to
FW v1 otherwise.
To do on linux-firmware project.
rtl_bt/rtl8852cu_fw.bin: FW v1 (stay at ver. 0xD7B8_FABF)
rtl_bt/rtl8852cu_fw_v2.bin: FW v2 (to be maintained)
[1]'9a24ce5e29b1 ("Bluetooth: btrtl: Firmware format v2 support")'
[2]'55e7448533e7 ("rtl_bt: Update RTL8852C BT USB firmware
to 0x040D_7225")'
Suggested-by: Juerg Haefliger <juerg.haefliger@...onical.com>
Tested-by: Hilda Wu <hildawu@...ltek.com>
Signed-off-by: Max Chou <max.chou@...ltek.com>
---
drivers/bluetooth/btrtl.c | 68 +++++++++++++++++++++++++--------------
1 file changed, 44 insertions(+), 24 deletions(-)
diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c
index ddae6524106d..8bfa86dd12f7 100644
--- a/drivers/bluetooth/btrtl.c
+++ b/drivers/bluetooth/btrtl.c
@@ -104,7 +104,7 @@ static const struct id_table ic_id_table[] = {
{ IC_INFO(RTL_ROM_LMP_8723A, 0xb, 0x6, HCI_USB),
.config_needed = false,
.has_rom_version = false,
- .fw_name = "rtl_bt/rtl8723a_fw.bin",
+ .fw_name = "rtl_bt/rtl8723a_fw",
.cfg_name = NULL,
.hw_info = "rtl8723au" },
@@ -112,7 +112,7 @@ static const struct id_table ic_id_table[] = {
{ IC_INFO(RTL_ROM_LMP_8723B, 0xb, 0x6, HCI_UART),
.config_needed = true,
.has_rom_version = true,
- .fw_name = "rtl_bt/rtl8723bs_fw.bin",
+ .fw_name = "rtl_bt/rtl8723bs_fw",
.cfg_name = "rtl_bt/rtl8723bs_config",
.hw_info = "rtl8723bs" },
@@ -120,7 +120,7 @@ static const struct id_table ic_id_table[] = {
{ IC_INFO(RTL_ROM_LMP_8723B, 0xb, 0x6, HCI_USB),
.config_needed = false,
.has_rom_version = true,
- .fw_name = "rtl_bt/rtl8723b_fw.bin",
+ .fw_name = "rtl_bt/rtl8723b_fw",
.cfg_name = "rtl_bt/rtl8723b_config",
.hw_info = "rtl8723bu" },
@@ -132,7 +132,7 @@ static const struct id_table ic_id_table[] = {
.hci_bus = HCI_UART,
.config_needed = true,
.has_rom_version = true,
- .fw_name = "rtl_bt/rtl8723cs_cg_fw.bin",
+ .fw_name = "rtl_bt/rtl8723cs_cg_fw",
.cfg_name = "rtl_bt/rtl8723cs_cg_config",
.hw_info = "rtl8723cs-cg" },
@@ -144,7 +144,7 @@ static const struct id_table ic_id_table[] = {
.hci_bus = HCI_UART,
.config_needed = true,
.has_rom_version = true,
- .fw_name = "rtl_bt/rtl8723cs_vf_fw.bin",
+ .fw_name = "rtl_bt/rtl8723cs_vf_fw",
.cfg_name = "rtl_bt/rtl8723cs_vf_config",
.hw_info = "rtl8723cs-vf" },
@@ -156,7 +156,7 @@ static const struct id_table ic_id_table[] = {
.hci_bus = HCI_UART,
.config_needed = true,
.has_rom_version = true,
- .fw_name = "rtl_bt/rtl8723cs_xx_fw.bin",
+ .fw_name = "rtl_bt/rtl8723cs_xx_fw",
.cfg_name = "rtl_bt/rtl8723cs_xx_config",
.hw_info = "rtl8723cs" },
@@ -164,7 +164,7 @@ static const struct id_table ic_id_table[] = {
{ IC_INFO(RTL_ROM_LMP_8723B, 0xd, 0x8, HCI_USB),
.config_needed = true,
.has_rom_version = true,
- .fw_name = "rtl_bt/rtl8723d_fw.bin",
+ .fw_name = "rtl_bt/rtl8723d_fw",
.cfg_name = "rtl_bt/rtl8723d_config",
.hw_info = "rtl8723du" },
@@ -172,7 +172,7 @@ static const struct id_table ic_id_table[] = {
{ IC_INFO(RTL_ROM_LMP_8723B, 0xd, 0x8, HCI_UART),
.config_needed = true,
.has_rom_version = true,
- .fw_name = "rtl_bt/rtl8723ds_fw.bin",
+ .fw_name = "rtl_bt/rtl8723ds_fw",
.cfg_name = "rtl_bt/rtl8723ds_config",
.hw_info = "rtl8723ds" },
@@ -180,7 +180,7 @@ static const struct id_table ic_id_table[] = {
{ IC_INFO(RTL_ROM_LMP_8821A, 0xa, 0x6, HCI_USB),
.config_needed = false,
.has_rom_version = true,
- .fw_name = "rtl_bt/rtl8821a_fw.bin",
+ .fw_name = "rtl_bt/rtl8821a_fw",
.cfg_name = "rtl_bt/rtl8821a_config",
.hw_info = "rtl8821au" },
@@ -189,7 +189,7 @@ static const struct id_table ic_id_table[] = {
.config_needed = false,
.has_rom_version = true,
.has_msft_ext = true,
- .fw_name = "rtl_bt/rtl8821c_fw.bin",
+ .fw_name = "rtl_bt/rtl8821c_fw",
.cfg_name = "rtl_bt/rtl8821c_config",
.hw_info = "rtl8821cu" },
@@ -198,7 +198,7 @@ static const struct id_table ic_id_table[] = {
.config_needed = true,
.has_rom_version = true,
.has_msft_ext = true,
- .fw_name = "rtl_bt/rtl8821cs_fw.bin",
+ .fw_name = "rtl_bt/rtl8821cs_fw",
.cfg_name = "rtl_bt/rtl8821cs_config",
.hw_info = "rtl8821cs" },
@@ -206,7 +206,7 @@ static const struct id_table ic_id_table[] = {
{ IC_INFO(RTL_ROM_LMP_8761A, 0xa, 0x6, HCI_USB),
.config_needed = false,
.has_rom_version = true,
- .fw_name = "rtl_bt/rtl8761a_fw.bin",
+ .fw_name = "rtl_bt/rtl8761a_fw",
.cfg_name = "rtl_bt/rtl8761a_config",
.hw_info = "rtl8761au" },
@@ -215,7 +215,7 @@ static const struct id_table ic_id_table[] = {
.config_needed = false,
.has_rom_version = true,
.has_msft_ext = true,
- .fw_name = "rtl_bt/rtl8761b_fw.bin",
+ .fw_name = "rtl_bt/rtl8761b_fw",
.cfg_name = "rtl_bt/rtl8761b_config",
.hw_info = "rtl8761btv" },
@@ -223,7 +223,7 @@ static const struct id_table ic_id_table[] = {
{ IC_INFO(RTL_ROM_LMP_8761A, 0xb, 0xa, HCI_USB),
.config_needed = false,
.has_rom_version = true,
- .fw_name = "rtl_bt/rtl8761bu_fw.bin",
+ .fw_name = "rtl_bt/rtl8761bu_fw",
.cfg_name = "rtl_bt/rtl8761bu_config",
.hw_info = "rtl8761bu" },
@@ -232,7 +232,7 @@ static const struct id_table ic_id_table[] = {
.config_needed = true,
.has_rom_version = true,
.has_msft_ext = true,
- .fw_name = "rtl_bt/rtl8822cs_fw.bin",
+ .fw_name = "rtl_bt/rtl8822cs_fw",
.cfg_name = "rtl_bt/rtl8822cs_config",
.hw_info = "rtl8822cs" },
@@ -241,7 +241,7 @@ static const struct id_table ic_id_table[] = {
.config_needed = true,
.has_rom_version = true,
.has_msft_ext = true,
- .fw_name = "rtl_bt/rtl8822cs_fw.bin",
+ .fw_name = "rtl_bt/rtl8822cs_fw",
.cfg_name = "rtl_bt/rtl8822cs_config",
.hw_info = "rtl8822cs" },
@@ -250,7 +250,7 @@ static const struct id_table ic_id_table[] = {
.config_needed = false,
.has_rom_version = true,
.has_msft_ext = true,
- .fw_name = "rtl_bt/rtl8822cu_fw.bin",
+ .fw_name = "rtl_bt/rtl8822cu_fw",
.cfg_name = "rtl_bt/rtl8822cu_config",
.hw_info = "rtl8822cu" },
@@ -259,7 +259,7 @@ static const struct id_table ic_id_table[] = {
.config_needed = true,
.has_rom_version = true,
.has_msft_ext = true,
- .fw_name = "rtl_bt/rtl8822b_fw.bin",
+ .fw_name = "rtl_bt/rtl8822b_fw",
.cfg_name = "rtl_bt/rtl8822b_config",
.hw_info = "rtl8822bu" },
@@ -268,7 +268,7 @@ static const struct id_table ic_id_table[] = {
.config_needed = false,
.has_rom_version = true,
.has_msft_ext = true,
- .fw_name = "rtl_bt/rtl8852au_fw.bin",
+ .fw_name = "rtl_bt/rtl8852au_fw",
.cfg_name = "rtl_bt/rtl8852au_config",
.hw_info = "rtl8852au" },
@@ -277,7 +277,7 @@ static const struct id_table ic_id_table[] = {
.config_needed = true,
.has_rom_version = true,
.has_msft_ext = true,
- .fw_name = "rtl_bt/rtl8852bs_fw.bin",
+ .fw_name = "rtl_bt/rtl8852bs_fw",
.cfg_name = "rtl_bt/rtl8852bs_config",
.hw_info = "rtl8852bs" },
@@ -286,7 +286,7 @@ static const struct id_table ic_id_table[] = {
.config_needed = false,
.has_rom_version = true,
.has_msft_ext = true,
- .fw_name = "rtl_bt/rtl8852bu_fw.bin",
+ .fw_name = "rtl_bt/rtl8852bu_fw",
.cfg_name = "rtl_bt/rtl8852bu_config",
.hw_info = "rtl8852bu" },
@@ -295,7 +295,7 @@ static const struct id_table ic_id_table[] = {
.config_needed = false,
.has_rom_version = true,
.has_msft_ext = true,
- .fw_name = "rtl_bt/rtl8852cu_fw.bin",
+ .fw_name = "rtl_bt/rtl8852cu_fw",
.cfg_name = "rtl_bt/rtl8852cu_config",
.hw_info = "rtl8852cu" },
@@ -304,7 +304,7 @@ static const struct id_table ic_id_table[] = {
.config_needed = false,
.has_rom_version = true,
.has_msft_ext = false,
- .fw_name = "rtl_bt/rtl8851bu_fw.bin",
+ .fw_name = "rtl_bt/rtl8851bu_fw",
.cfg_name = "rtl_bt/rtl8851bu_config",
.hw_info = "rtl8851bu" },
};
@@ -1045,10 +1045,12 @@ struct btrtl_device_info *btrtl_initialize(struct hci_dev *hdev,
struct sk_buff *skb;
struct hci_rp_read_local_version *resp;
struct hci_command_hdr *cmd;
+ char fw_name[40];
char cfg_name[40];
u16 hci_rev, lmp_subver;
u8 hci_ver, lmp_ver, chip_type = 0;
int ret;
+ int fw_load_retry = 0;
u8 reg_val[2];
btrtl_dev = kzalloc(sizeof(*btrtl_dev), GFP_KERNEL);
@@ -1154,9 +1156,26 @@ struct btrtl_device_info *btrtl_initialize(struct hci_dev *hdev,
goto err_free;
}
- btrtl_dev->fw_len = rtl_load_file(hdev, btrtl_dev->ic_info->fw_name,
+fw_name_load:
+ if (btrtl_dev->ic_info->fw_name) {
+ if (lmp_subver == RTL_ROM_LMP_8852A && hci_rev == 0x000c &&
+ fw_load_retry == 0) {
+ fw_load_retry = 1;
+ snprintf(fw_name, sizeof(fw_name), "%s_v2.bin",
+ btrtl_dev->ic_info->fw_name);
+ } else {
+ fw_load_retry = 0;
+ snprintf(fw_name, sizeof(fw_name), "%s.bin",
+ btrtl_dev->ic_info->fw_name);
+ }
+ btrtl_dev->fw_len = rtl_load_file(hdev, fw_name,
&btrtl_dev->fw_data);
+ }
+
if (btrtl_dev->fw_len < 0) {
+ if (fw_load_retry == 1)
+ goto fw_name_load;
+
rtl_dev_err(hdev, "firmware file %s not found",
btrtl_dev->ic_info->fw_name);
ret = btrtl_dev->fw_len;
@@ -1491,4 +1510,5 @@ MODULE_FIRMWARE("rtl_bt/rtl8852bs_config.bin");
MODULE_FIRMWARE("rtl_bt/rtl8852bu_fw.bin");
MODULE_FIRMWARE("rtl_bt/rtl8852bu_config.bin");
MODULE_FIRMWARE("rtl_bt/rtl8852cu_fw.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8852cu_fw_v2.bin");
MODULE_FIRMWARE("rtl_bt/rtl8852cu_config.bin");
--
2.34.1
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