firmware/br-ext-chip-ingenic/board/t40/kernel/patches/00000-drivers_bluetooth_hci_ldisc.c.patch

diff -drupN a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c
--- a/drivers/bluetooth/hci_ldisc.c	2017-10-21 18:09:07.000000000 +0300
+++ b/drivers/bluetooth/hci_ldisc.c	2022-06-09 05:02:28.000000000 +0300
@@ -48,6 +48,13 @@
 #include "btintel.h"
 #include "btbcm.h"
 #include "hci_uart.h"
+#include <linux/platform_device.h>
+#define DEVNAME "rtl_bt_en"
+
+#ifdef BTCOEX
+#include <linux/version.h>
+#include "rtk_coex.h"
+#endif
 
 #define VERSION "2.3"
 
@@ -208,6 +215,9 @@ static int hci_uart_open(struct hci_dev
 	BT_DBG("%s %p", hdev->name, hdev);
 
 	/* Nothing to do for UART driver */
+#ifdef BTCOEX
+	rtk_btcoex_open(hdev);
+#endif
 	return 0;
 }
 
@@ -238,8 +248,16 @@ static int hci_uart_close(struct hci_dev
 {
 	BT_DBG("hdev %p", hdev);
 
+	if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
+		return 0;
+
 	hci_uart_flush(hdev);
 	hdev->flush = NULL;
+
+#ifdef BTCOEX
+	rtk_btcoex_close();
+#endif
+
 	return 0;
 }
 
@@ -250,6 +268,13 @@ static int hci_uart_send_frame(struct hc
 
 	BT_DBG("%s: type %d len %d", hdev->name, bt_cb(skb)->pkt_type, skb->len);
 
+#ifdef BTCOEX
+	if (bt_cb(skb)->pkt_type == HCI_COMMAND_PKT)
+		rtk_btcoex_parse_cmd(skb->data, skb->len);
+	if (bt_cb(skb)->pkt_type == HCI_ACLDATA_PKT)
+		rtk_btcoex_parse_l2cap_data_tx(skb->data, skb->len);
+#endif
+
 	hu->proto->enqueue(hu, skb);
 
 	hci_uart_tx_wakeup(hu);
@@ -505,7 +530,9 @@ static void hci_uart_tty_close(struct tt
 		}
 		hu->proto->close(hu);
 	}
-
+#ifdef CONFIG_BT_HCIUART_RTKH5
+	clear_bit(HCI_UART_PROTO_SET, &hu->flags);
+#endif
 	kfree(hu);
 }
 
@@ -625,7 +652,9 @@ static int hci_uart_register_dev(struct
 	}
 
 	set_bit(HCI_UART_REGISTERED, &hu->flags);
-
+#ifdef BTCOEX
+	rtk_btcoex_probe(hdev);
+#endif
 	return 0;
 }
 
@@ -643,9 +672,15 @@ static int hci_uart_set_proto(struct hci
 		return err;
 
 	hu->proto = p;
+#ifdef CONFIG_BT_HCIUART_RTKH5
+	set_bit(HCI_UART_PROTO_SET, &hu->flags);
+#endif
 
 	err = hci_uart_register_dev(hu);
 	if (err) {
+#ifdef CONFIG_BT_HCIUART_RTKH5
+		clear_bit(HCI_UART_PROTO_SET, &hu->flags);
+#endif
 		p->close(hu);
 		return err;
 	}
@@ -810,6 +845,14 @@ static int __init hci_uart_init(void)
 	qca_init();
 #endif
 
+#ifdef CONFIG_BT_HCIUART_RTKH5
+        h5_init();
+#endif
+
+#ifdef BTCOEX                    
+        rtk_btcoex_init();
+#endif
+
 	return 0;
 }
 
@@ -841,15 +884,74 @@ static void __exit hci_uart_exit(void)
 #ifdef CONFIG_BT_HCIUART_QCA
 	qca_deinit();
 #endif
+#ifdef CONFIG_BT_HCIUART_RTKH5
+	h5_deinit();
+#endif
 
+#ifdef BTCOEX
+	rtk_btcoex_exit();
+#endif
 	/* Release tty registration of line discipline */
 	err = tty_unregister_ldisc(N_HCI);
 	if (err)
 		BT_ERR("Can't unregister HCI line discipline (%d)", err);
 }
+#if (defined CONFIG_BT_HCIUART_RTKH5)  && (defined CONFIG_BT_HCIUART_H4)
+
+struct rtl_bt_data {
+	int (*rtl_bt_en)(void);
+};
+
+static int rtl_bt_probe (struct platform_device *pdev)
+{
+	struct rtl_bt_data * bt_data =  NULL;
+	int ret = 0;
 
+	bt_data =  (struct rtl_bt_data *)pdev->dev.platform_data;
+	if (bt_data->rtl_bt_en)
+		bt_data->rtl_bt_en();
+	else 
+		BT_ERR("rtl_bt_en pin enable failed\n");
+		
+	ret = hci_uart_init();
+	return ret;
+}
+
+static int rtl_bt_remove (struct platform_device *pdev)
+{
+	hci_uart_exit();
+	return 0;
+}
+
+static struct platform_driver bt_drv = {
+	.probe	= rtl_bt_probe,
+	.remove	= rtl_bt_remove,
+	.driver = {
+		.name = DEVNAME,
+	},
+};
+
+static int __init rtk_bt_init(void)
+{
+	int ret = 0;
+	ret = platform_driver_register(&bt_drv);
+	if (ret < 0) {
+		BT_ERR("register bt driver failed\n");
+	}
+	return ret;
+}
+
+static void __exit rtk_bt_exit(void)
+{
+	platform_driver_unregister(&bt_drv);
+}
+
+module_init(rtk_bt_init);
+module_exit(rtk_bt_exit);
+#else
 module_init(hci_uart_init);
 module_exit(hci_uart_exit);
+#endif
 
 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
 MODULE_DESCRIPTION("Bluetooth HCI UART driver ver " VERSION);