Received-SPF: pass (google.com: domain of linux-bluetooth-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
From:   Tedd Ho-Jeong An <hj.tedd.an@gmail.com>
To:     linux-bluetooth@vger.kernel.org
Cc:     danielwinkler@google.com, tedd.an@intel.com
Subject: [PATCH 2/3] emulator/btdev: Add support LE_READ_TX_POWER command
Date:   Tue, 22 Dec 2020 16:26:32 -0800
Message-Id: <20201223002633.187612-2-tedd.an@intel.com>
In-Reply-To: <20201223002633.187612-1-tedd.an@intel.com>
References: <20201223002633.187612-1-tedd.an@intel.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

This patch adds support for LE_READ_TX_POWER command.
It uses a random values for min and max tx power since these values is
read from the controller.
---
 emulator/btdev.c | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/emulator/btdev.c b/emulator/btdev.c
index ae382d9b9..17965f9b6 100644
--- a/emulator/btdev.c
+++ b/emulator/btdev.c
@@ -4170,6 +4170,22 @@ static int cmd_read_per_adv_list_size(struct btdev *dev, const void *data,
 	return -ENOTSUP;
 }
 
+static int cmd_read_tx_power(struct btdev *dev, const void *data, uint8_t len)
+{
+	struct bt_hci_rsp_le_read_tx_power rsp;
+
+	memset(&rsp, 0, sizeof(rsp));
+
+	rsp.status = BT_HCI_ERR_SUCCESS;
+	/* a random default value */
+	rsp.max_tx_power = 0x07;
+	rsp.min_tx_power = 0xDE;
+
+	cmd_complete(dev, BT_HCI_CMD_LE_READ_TX_POWER, &rsp, sizeof(rsp));
+
+	return 0;
+}
+
 #define CMD_LE_50 \
 	CMD(BT_HCI_CMD_LE_SET_DEFAULT_PHY, cmd_set_default_phy,	NULL), \
 	CMD(BT_HCI_CMD_LE_SET_ADV_SET_RAND_ADDR, cmd_set_adv_rand_addr, NULL), \
@@ -4205,7 +4221,8 @@ static int cmd_read_per_adv_list_size(struct btdev *dev, const void *data,
 					NULL), \
 	CMD(BT_HCI_CMD_LE_CLEAR_PERIODIC_ADV_LIST, cmd_per_adv_clear, NULL), \
 	CMD(BT_HCI_CMD_LE_READ_PERIODIC_ADV_LIST_SIZE, \
-					cmd_read_per_adv_list_size, NULL)
+					cmd_read_per_adv_list_size, NULL), \
+	CMD(BT_HCI_CMD_LE_READ_TX_POWER, cmd_read_tx_power, NULL)
 
 static const struct btdev_cmd cmd_le_5_0[] = {
 	CMD_COMMON_ALL,
@@ -4240,6 +4257,7 @@ static void set_le_50_commands(struct btdev *btdev)
 	btdev->commands[38] |= 0x10;	/* LE Remove Periodic Adv List */
 	btdev->commands[38] |= 0x20;	/* LE Clear Periodic Adv List */
 	btdev->commands[38] |= 0x40;	/* LE Read Periodic Adv List Size */
+	btdev->commands[38] |= 0x80;	/* LE Read Transmit Power */
 	btdev->cmds = cmd_le_5_0;
 }
 
-- 
2.25.1