Bluetooth: btmrvl: indicate pscan scheduling instant in a debug event

A vendor specific command is sent to firmware during
initialization to enable this feature. This command is for
SD8897 only.

Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

drivers/bluetooth/btmrvl_drv.h

@@ -89,6 +89,7 @@ struct btmrvl_private {
 #define MRVL_VENDOR_PKT			0xFE
 
 /* Vendor specific Bluetooth commands */
+#define BT_CMD_PSCAN_WIN_REPORT_ENABLE	0xFC03
 #define BT_CMD_AUTO_SLEEP_MODE		0xFC23
 #define BT_CMD_HOST_SLEEP_CONFIG	0xFC59
 #define BT_CMD_HOST_SLEEP_ENABLE	0xFC5A

drivers/bluetooth/btmrvl_main.c

@@ -214,6 +214,23 @@ int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, u8 subcmd)
 }
 EXPORT_SYMBOL_GPL(btmrvl_send_module_cfg_cmd);
 
+int btmrvl_pscan_window_reporting(struct btmrvl_private *priv, u8 subcmd)
+{
+	struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
+	int ret;
+
+	if (!card->support_pscan_win_report)
+		return 0;
+
+	ret = btmrvl_send_sync_cmd(priv, BT_CMD_PSCAN_WIN_REPORT_ENABLE,
+				   &subcmd, 1);
+	if (ret)
+		BT_ERR("PSCAN_WIN_REPORT_ENABLE command failed: %#x", ret);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(btmrvl_pscan_window_reporting);
+
 int btmrvl_send_hscfg_cmd(struct btmrvl_private *priv)
 {
 	int ret;
@@ -489,6 +506,8 @@ static int btmrvl_setup(struct hci_dev *hdev)
 
 	btmrvl_cal_data_dt(priv);
 
+	btmrvl_pscan_window_reporting(priv, 0x01);
+
 	priv->btmrvl_dev.psmode = 1;
 	btmrvl_enable_ps(priv);
 

drivers/bluetooth/btmrvl_sdio.c

@@ -108,6 +108,7 @@ static const struct btmrvl_sdio_device btmrvl_sdio_sd8688 = {
 	.helper		= "mrvl/sd8688_helper.bin",
 	.firmware	= "mrvl/sd8688.bin",
 	.reg		= &btmrvl_reg_8688,
+	.support_pscan_win_report = false,
 	.sd_blksz_fw_dl	= 64,
 };
 
@@ -115,6 +116,7 @@ static const struct btmrvl_sdio_device btmrvl_sdio_sd8787 = {
 	.helper		= NULL,
 	.firmware	= "mrvl/sd8787_uapsta.bin",
 	.reg		= &btmrvl_reg_87xx,
+	.support_pscan_win_report = false,
 	.sd_blksz_fw_dl	= 256,
 };
 
@@ -122,6 +124,7 @@ static const struct btmrvl_sdio_device btmrvl_sdio_sd8797 = {
 	.helper		= NULL,
 	.firmware	= "mrvl/sd8797_uapsta.bin",
 	.reg		= &btmrvl_reg_87xx,
+	.support_pscan_win_report = false,
 	.sd_blksz_fw_dl	= 256,
 };
 
@@ -129,6 +132,7 @@ static const struct btmrvl_sdio_device btmrvl_sdio_sd8897 = {
 	.helper		= NULL,
 	.firmware	= "mrvl/sd8897_uapsta.bin",
 	.reg		= &btmrvl_reg_88xx,
+	.support_pscan_win_report = true,
 	.sd_blksz_fw_dl	= 256,
 };
 
@@ -1067,6 +1071,7 @@ static int btmrvl_sdio_probe(struct sdio_func *func,
 		card->firmware = data->firmware;
 		card->reg = data->reg;
 		card->sd_blksz_fw_dl = data->sd_blksz_fw_dl;
+		card->support_pscan_win_report = data->support_pscan_win_report;
 	}
 
 	if (btmrvl_sdio_register_dev(card) < 0) {

drivers/bluetooth/btmrvl_sdio.h

@@ -89,6 +89,7 @@ struct btmrvl_sdio_card {
 	const char *helper;
 	const char *firmware;
 	const struct btmrvl_sdio_card_reg *reg;
+	bool support_pscan_win_report;
 	u16 sd_blksz_fw_dl;
 	u8 rx_unit;
 	struct btmrvl_private *priv;
@@ -98,6 +99,7 @@ struct btmrvl_sdio_device {
 	const char *helper;
 	const char *firmware;
 	const struct btmrvl_sdio_card_reg *reg;
+	const bool support_pscan_win_report;
 	u16 sd_blksz_fw_dl;
 };