drivers/bluetooth/btrtl.c | 70 +++++++++++++++++++++++++-------------- 1 file changed, 45 insertions(+), 25 deletions(-)
From: Max Chou <max.chou@realtek.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.
Note that the driver has supported to extract the data for v1 and v2
since the commit[1].
The previous FW format of RTL8852C is v1. After the commit[2], the FW
format was changed to v2. Only RTL8852C suffered the different FW formats,
so we will use rtl8852cu_fw.bin for the original commit as FW v1 and
rtl8852cu_fw_v2.bin for the future maintained as FW v2. Other Realtek
chips will not been impacted by this patch.
To do on linux-firmware project after this commit.
1. revert '55e7448533e7 ("rtl_bt: Update RTL8852C BT USB firmware
to 0x040D_7225")'
=> rtl_bt/rtl8852cu_fw.bin: FW v1 (stay at ver. 0xD7B8_FABF)
2. Add a new commit for rtl8852cu_fw_v2.bin
=>rtl_bt/rtl8852cu_fw_v2.bin: FW v2 (to be maintained)
Reference:
[1]'9a24ce5e29b1 ("Bluetooth: btrtl: Firmware format v2 support")'
[2]'55e7448533e7 ("rtl_bt: Update RTL8852C BT USB firmware
to 0x040D_7225")'
Fixes: '9a24ce5e29b ("Bluetooth: btrtl: Firmware format v2 support")'
Suggested-by: Juerg Haefliger <juerg.haefliger@canonical.com>
Tested-by: Hilda Wu <hildawu@realtek.com>
Signed-off-by: Max Chou <max.chou@realtek.com>
---
Changes in v2:
- Fix commit log for CheckPatch FAIL
Changes in v2:
- Tuning the code for more readable. Thanks Juerg!
- Modify the commit log.
---
drivers/bluetooth/btrtl.c | 70 +++++++++++++++++++++++++--------------
1 file changed, 45 insertions(+), 25 deletions(-)
diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c
index ddae6524106d..84c2c2e1122f 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" },
};
@@ -1045,6 +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;
@@ -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);
@@ -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");
--
2.34.1On Mon, 7 Aug 2023 09:44:15 +0800
<max.chou@realtek.com> wrote:
> From: Max Chou <max.chou@realtek.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.
>
> Note that the driver has supported to extract the data for v1 and v2
> since the commit[1].
> The previous FW format of RTL8852C is v1. After the commit[2], the FW
> format was changed to v2. Only RTL8852C suffered the different FW formats,
> so we will use rtl8852cu_fw.bin for the original commit as FW v1 and
> rtl8852cu_fw_v2.bin for the future maintained as FW v2. Other Realtek
> chips will not been impacted by this patch.
>
> To do on linux-firmware project after this commit.
> 1. revert '55e7448533e7 ("rtl_bt: Update RTL8852C BT USB firmware
> to 0x040D_7225")'
> => rtl_bt/rtl8852cu_fw.bin: FW v1 (stay at ver. 0xD7B8_FABF)
> 2. Add a new commit for rtl8852cu_fw_v2.bin
> =>rtl_bt/rtl8852cu_fw_v2.bin: FW v2 (to be maintained)
>
> Reference:
> [1]'9a24ce5e29b1 ("Bluetooth: btrtl: Firmware format v2 support")'
> [2]'55e7448533e7 ("rtl_bt: Update RTL8852C BT USB firmware
> to 0x040D_7225")'
IMO this commit message is too confusing. I don't think you need nor should
refer to linux-firmware commits and what happened in that repo. This commit
simply fixes the v2 support by trying to load a v2 file for certain chips
with a fall-back if fw is not found (or failed to load). That's all that
needs to be mentioned in the commit message.
> Fixes: '9a24ce5e29b ("Bluetooth: btrtl: Firmware format v2 support")'
No '' quotes.
...Juerg
> Suggested-by: Juerg Haefliger <juerg.haefliger@canonical.com>
> Tested-by: Hilda Wu <hildawu@realtek.com>
> Signed-off-by: Max Chou <max.chou@realtek.com>
>
> ---
> Changes in v2:
> - Fix commit log for CheckPatch FAIL
>
> Changes in v2:
> - Tuning the code for more readable. Thanks Juerg!
> - Modify the commit log.
> ---
> drivers/bluetooth/btrtl.c | 70 +++++++++++++++++++++++++--------------
> 1 file changed, 45 insertions(+), 25 deletions(-)
>
> diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c
> index ddae6524106d..84c2c2e1122f 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" },
> };
> @@ -1045,6 +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;
> @@ -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);
> @@ -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");
On 07.08.23 12:06, Juerg Haefliger wrote:
> On Mon, 7 Aug 2023 09:44:15 +0800
> <max.chou@realtek.com> wrote:
>
>> From: Max Chou <max.chou@realtek.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.
>>
>> Note that the driver has supported to extract the data for v1 and v2
>> since the commit[1].
>> The previous FW format of RTL8852C is v1. After the commit[2], the FW
>> format was changed to v2. Only RTL8852C suffered the different FW formats,
>> so we will use rtl8852cu_fw.bin for the original commit as FW v1 and
>> rtl8852cu_fw_v2.bin for the future maintained as FW v2. Other Realtek
>> chips will not been impacted by this patch.
>>
>> To do on linux-firmware project after this commit.
>> 1. revert '55e7448533e7 ("rtl_bt: Update RTL8852C BT USB firmware
>> to 0x040D_7225")'
>> => rtl_bt/rtl8852cu_fw.bin: FW v1 (stay at ver. 0xD7B8_FABF)
>> 2. Add a new commit for rtl8852cu_fw_v2.bin
>> =>rtl_bt/rtl8852cu_fw_v2.bin: FW v2 (to be maintained)
>>
>> Reference:
>> [1]'9a24ce5e29b1 ("Bluetooth: btrtl: Firmware format v2 support")'
>> [2]'55e7448533e7 ("rtl_bt: Update RTL8852C BT USB firmware
>> to 0x040D_7225")'
>
> IMO this commit message is too confusing. I don't think you need nor should
> refer to linux-firmware commits and what happened in that repo. This commit
> simply fixes the v2 support by trying to load a v2 file for certain chips
> with a fall-back if fw is not found (or failed to load). That's all that
> needs to be mentioned in the commit message.
/me totally agrees that this in confusing the way it is and needs to be
simplified, but explaining things briefly with maybe a Link: to the
linux-firmware commit in question might nevertheless be a good idea (YMMV)
>> Fixes: '9a24ce5e29b ("Bluetooth: btrtl: Firmware format v2 support")'
>
> No '' quotes.
Max Chou, you could have just picked the two tags I mentioned earlier
just without the space in front of it[1]. If you do so the 0-day robot
will also stop complaining, as you apparently misunderstood what I meant
with stable tag; [2] explains this.
Ciao, Thorsten
[1]
https://lore.kernel.org/all/f11ba0ef-0bb1-b925-3088-2ba7a8d17393@leemhuis.info/
[2] https://docs.kernel.org/process/stable-kernel-rules.html
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