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| author | Daniel Winkler <danielwinkler@google.com> | 2020-12-03 12:12:51 -0800 |
|---|---|---|
| committer | Johan Hedberg <johan.hedberg@intel.com> | 2020-12-07 17:01:38 +0200 |
| commit | 7c395ea521e6c8d77f643be61bf2f0f3a1f5b3e8 (patch) | |
| tree | 5e3d791afeb45da4d0b44830849253eb1ad2219a /include | |
| parent | 9bf9f4b6301ffbd51674e1168f8eeed214d2cf99 (diff) | |
| download | linux-stable-7c395ea521e6c8d77f643be61bf2f0f3a1f5b3e8.tar.gz linux-stable-7c395ea521e6c8d77f643be61bf2f0f3a1f5b3e8.tar.bz2 linux-stable-7c395ea521e6c8d77f643be61bf2f0f3a1f5b3e8.zip | |
Bluetooth: Query LE tx power on startup
Queries tx power via HCI_LE_Read_Transmit_Power command when the hci
device is initialized, and stores resulting min/max LE power in hdev
struct. If command isn't available (< BT5 support), min/max values
both default to HCI_TX_POWER_INVALID.
This patch is manually verified by ensuring BT5 devices correctly query
and receive controller tx power range.
Reviewed-by: Sonny Sasaka <sonnysasaka@chromium.org>
Signed-off-by: Daniel Winkler <danielwinkler@google.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/bluetooth/hci.h | 7 | ||||
| -rw-r--r-- | include/net/bluetooth/hci_core.h | 2 |
2 files changed, 9 insertions, 0 deletions
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h index c8e67042a3b1..c1504aa3d9cf 100644 --- a/include/net/bluetooth/hci.h +++ b/include/net/bluetooth/hci.h @@ -1797,6 +1797,13 @@ struct hci_cp_le_set_adv_set_rand_addr { bdaddr_t bdaddr; } __packed; +#define HCI_OP_LE_READ_TRANSMIT_POWER 0x204b +struct hci_rp_le_read_transmit_power { + __u8 status; + __s8 min_le_tx_power; + __s8 max_le_tx_power; +} __packed; + #define HCI_OP_LE_READ_BUFFER_SIZE_V2 0x2060 struct hci_rp_le_read_buffer_size_v2 { __u8 status; diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index 88988d4fd347..677a8c50b2ad 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -384,6 +384,8 @@ struct hci_dev { __u16 def_page_timeout; __u16 def_multi_adv_rotation_duration; __u16 def_le_autoconnect_timeout; + __s8 min_le_tx_power; + __s8 max_le_tx_power; __u16 pkt_type; __u16 esco_type; |