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Bluetooth: btrtl: Load FW v2 otherwise FW v1 for RTL8852C
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In this commit, prefer to load FW v2 if available. Fallback to FW v1
otherwise. This behavior is only for RTL8852C.

Fixes: 9a24ce5 ("Bluetooth: btrtl: Firmware format v2 support")
Cc: stable@vger.kernel.org
Suggested-by: Juerg Haefliger <juerg.haefliger@canonical.com>
Tested-by: Hilda Wu <hildawu@realtek.com>
Signed-off-by: Max Chou <max.chou@realtek.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
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Max Chou authored and Luiz Augusto von Dentz committed Aug 11, 2023
1 parent 3cd43dd commit bd003fb
Showing 1 changed file with 45 additions and 25 deletions.
70 changes: 45 additions & 25 deletions drivers/bluetooth/btrtl.c
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Original file line number Diff line number Diff line change
Expand Up @@ -104,23 +104,23 @@ 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" },

/* 8723BS */
{ 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" },

/* 8723B */
{ 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" },

Expand All @@ -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" },

Expand All @@ -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" },

Expand All @@ -156,31 +156,31 @@ 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" },

/* 8723D */
{ 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" },

/* 8723DS */
{ 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" },

/* 8821A */
{ 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" },

Expand All @@ -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" },

Expand All @@ -198,15 +198,15 @@ 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" },

/* 8761A */
{ 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" },

Expand All @@ -215,15 +215,15 @@ 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" },

/* 8761BU */
{ 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" },

Expand All @@ -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" },

Expand All @@ -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" },

Expand All @@ -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" },

Expand All @@ -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" },

Expand All @@ -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" },

Expand All @@ -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" },

Expand All @@ -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" },

Expand All @@ -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" },

Expand All @@ -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" },
};
Expand Down Expand Up @@ -1045,6 +1045,7 @@ 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;
Expand Down Expand Up @@ -1154,8 +1155,26 @@ 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,
&btrtl_dev->fw_data);
if (!btrtl_dev->ic_info->fw_name) {
ret = -ENOMEM;
goto err_free;
}

btrtl_dev->fw_len = -EIO;
if (lmp_subver == RTL_ROM_LMP_8852A && hci_rev == 0x000c) {
snprintf(fw_name, sizeof(fw_name), "%s_v2.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) {
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) {
rtl_dev_err(hdev, "firmware file %s not found",
btrtl_dev->ic_info->fw_name);
Expand Down Expand Up @@ -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");

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