Add a variation of RTL8822CS with hci_ver = 0x08.
The controller does not always start when the system starts up, so we do a forced reset via gpio during initialization.
Vyacheslav Bocharov (2):
Bluetooth: btrtl: Add support for RTL8822C hci_ver 0x08
Bluetooth: hci_h5: Add power reset via gpio in h5_btrtl_open
drivers/bluetooth/btrtl.c | 7 +++++++
drivers/bluetooth/hci_h5.c | 5 +++++
2 files changed, 12 insertions(+)
--
2.30.2
Add detection of RTL8822CS controller with hci_ver = 0x08
Signed-off-by: chbgdn <[email protected]>
Signed-off-by: Vyacheslav Bocharov <[email protected]>
---
drivers/bluetooth/btrtl.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c
index 1f8afa0244d8..60c4a9976d5a 100644
--- a/drivers/bluetooth/btrtl.c
+++ b/drivers/bluetooth/btrtl.c
@@ -152,6 +152,13 @@ static const struct id_table ic_id_table[] = {
.fw_name = "rtl_bt/rtl8822cs_fw.bin",
.cfg_name = "rtl_bt/rtl8822cs_config" },
+ /* 8822C with UART interface */
+ { IC_INFO(RTL_ROM_LMP_8822B, 0xc, 0x8, HCI_UART),
+ .config_needed = true,
+ .has_rom_version = true,
+ .fw_name = "rtl_bt/rtl8822cs_fw.bin",
+ .cfg_name = "rtl_bt/rtl8822cs_config" },
+
/* 8822C with USB interface */
{ IC_INFO(RTL_ROM_LMP_8822B, 0xc, 0xa, HCI_USB),
.config_needed = false,
--
2.30.2
Add power reset via enable-gpios in h5_btrtl_open function.
Signed-off-by: Vyacheslav Bocharov <[email protected]>
---
drivers/bluetooth/hci_h5.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/bluetooth/hci_h5.c b/drivers/bluetooth/hci_h5.c
index 0c0dedece59c..ab7c929cc25d 100644
--- a/drivers/bluetooth/hci_h5.c
+++ b/drivers/bluetooth/hci_h5.c
@@ -968,6 +968,11 @@ static void h5_btrtl_open(struct h5 *h5)
SUSPEND_TIMEOUT_MS);
pm_runtime_enable(&h5->hu->serdev->dev);
+ /* The controller needs reset to startup */
+ gpiod_set_value_cansleep(h5->enable_gpio, 0);
+ gpiod_set_value_cansleep(h5->device_wake_gpio, 0);
+ msleep(100);
+
/* The controller needs up to 500ms to wakeup */
gpiod_set_value_cansleep(h5->enable_gpio, 1);
gpiod_set_value_cansleep(h5->device_wake_gpio, 1);
--
2.30.2
19.10.2021 21:29, Marcel Holtmann wrote:
> Hi Vyacheslav,
>
>> Add detection of RTL8822CS controller with hci_ver = 0x08
>>
>> Signed-off-by: chbgdn <[email protected]>
>
> clear name please.
If Bohdan doesn't answer, we can remove this line.
>> + /* 8822C with UART interface */
>> + { IC_INFO(RTL_ROM_LMP_8822B, 0xc, 0x8, HCI_UART),
>> + .config_needed = true,
>> + .has_rom_version = true,
>> + .fw_name = "rtl_bt/rtl8822cs_fw.bin",
>> + .cfg_name = "rtl_bt/rtl8822cs_config" },
>> +
>
> what about the .has_msft_ext here. Does this one support the Microsoft extension?
This is only a variant of the already added 8822c controller, so I
simply copied the parameters and changed only hci_ver to 0x8.
I found this controller on X96 TV Box and JetHome H1 device.
It will also be necessary to update rtl8822cs_config in the
linux-firmware repository from
https://github.com/armbian/firmware/commit/5d685ad233b4dfd03a4d025fa0061f6b0f850cb3