Commit c50903e3 authored by Martin Blumenstingl's avatar Martin Blumenstingl Committed by Marcel Holtmann
Browse files

Bluetooth: btrtl: add support for the RTL8723BS and RTL8723DS chips 



The Realtek RTL8723BS and RTL8723DS chipsets are SDIO wifi chips. They
also contain a Bluetooth module which is connected via UART to the host.

Realtek's userspace initialization tool (rtk_hciattach) differentiates
these two via the HCI version and revision returned by the
HCI_OP_READ_LOCAL_VERSION command.
Additionally we apply these checks only the for UART devices. Everything
else is assumed to be a "RTL8723B" which was originally supported by the
driver (communicating via USB).

Signed-off-by: default avatarMartin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: default avatarJeremy Cline <jeremy@jcline.org>
Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
parent b85b0ee1

drivers/bluetooth/btrtl.c

+47 −4
Original line number Diff line number Diff line
@@ -38,6 +38,8 @@ 


#define IC_MATCH_FL_LMPSUBV	(1 << 0)

#define IC_MATCH_FL_HCIREV	(1 << 1)

#define IC_MATCH_FL_HCIVER	(1 << 2)

#define IC_MATCH_FL_HCIBUS	(1 << 3)

#define IC_INFO(lmps, hcir) \

	.match_flags = IC_MATCH_FL_LMPSUBV | IC_MATCH_FL_HCIREV, \

	.lmp_subver = (lmps), \
@@ -47,6 +49,8 @@ struct id_table { 
	__u16 match_flags;

	__u16 lmp_subver;

	__u16 hci_rev;

	__u8 hci_ver;

	__u8 hci_bus;

	bool config_needed;

	bool has_rom_version;

	char *fw_name;
@@ -75,6 +79,18 @@ static const struct id_table ic_id_table[] = { 
	  .fw_name = "rtl_bt/rtl8723a_fw.bin",

	  .cfg_name = NULL },



	/* 8723BS */

	{ .match_flags = IC_MATCH_FL_LMPSUBV | IC_MATCH_FL_HCIREV |

			 IC_MATCH_FL_HCIVER | IC_MATCH_FL_HCIBUS,

	  .lmp_subver = RTL_ROM_LMP_8723B,

	  .hci_rev = 0xb,

	  .hci_ver = 6,

	  .hci_bus = HCI_UART,

	  .config_needed = true,

	  .has_rom_version = true,

	  .fw_name  = "rtl_bt/rtl8723bs_fw.bin",

	  .cfg_name = "rtl_bt/rtl8723bs_config.bin" },



	/* 8723B */

	{ IC_INFO(RTL_ROM_LMP_8723B, 0xb),

	  .config_needed = false,
@@ -89,6 +105,18 @@ static const struct id_table ic_id_table[] = { 
	  .fw_name  = "rtl_bt/rtl8723d_fw.bin",

	  .cfg_name = "rtl_bt/rtl8723d_config.bin" },



	/* 8723DS */

	{ .match_flags = IC_MATCH_FL_LMPSUBV | IC_MATCH_FL_HCIREV |

			 IC_MATCH_FL_HCIVER | IC_MATCH_FL_HCIBUS,

	  .lmp_subver = RTL_ROM_LMP_8723B,

	  .hci_rev = 0xd,

	  .hci_ver = 8,

	  .hci_bus = HCI_UART,

	  .config_needed = true,

	  .has_rom_version = true,

	  .fw_name  = "rtl_bt/rtl8723ds_fw.bin",

	  .cfg_name = "rtl_bt/rtl8723ds_config.bin" },



	/* 8821A */

	{ IC_INFO(RTL_ROM_LMP_8821A, 0xa),

	  .config_needed = false,
@@ -118,7 +146,8 @@ static const struct id_table ic_id_table[] = { 
	  .cfg_name = "rtl_bt/rtl8822b_config.bin" },

	};



static const struct id_table *btrtl_match_ic(u16 lmp_subver, u16 hci_rev)

static const struct id_table *btrtl_match_ic(u16 lmp_subver, u16 hci_rev,

					     u8 hci_ver, u8 hci_bus)

{

	int i;
@@ -129,6 +158,12 @@ static const struct id_table *btrtl_match_ic(u16 lmp_subver, u16 hci_rev) 
		if ((ic_id_table[i].match_flags & IC_MATCH_FL_HCIREV) &&

		    (ic_id_table[i].hci_rev != hci_rev))

			continue;

		if ((ic_id_table[i].match_flags & IC_MATCH_FL_HCIVER) &&

		    (ic_id_table[i].hci_ver != hci_ver))

			continue;

		if ((ic_id_table[i].match_flags & IC_MATCH_FL_HCIBUS) &&

		    (ic_id_table[i].hci_bus != hci_bus))

			continue;



		break;

	}
@@ -478,6 +513,7 @@ struct btrtl_device_info *btrtl_initialize(struct hci_dev *hdev) 
	struct sk_buff *skb;

	struct hci_rp_read_local_version *resp;

	u16 hci_rev, lmp_subver;

	u8 hci_ver;

	int ret;



	btrtl_dev = kzalloc(sizeof(*btrtl_dev), GFP_KERNEL);
@@ -497,14 +533,17 @@ struct btrtl_device_info *btrtl_initialize(struct hci_dev *hdev) 
		     resp->hci_ver, resp->hci_rev,

		     resp->lmp_ver, resp->lmp_subver);



	hci_ver = resp->hci_ver;

	hci_rev = le16_to_cpu(resp->hci_rev);

	lmp_subver = le16_to_cpu(resp->lmp_subver);

	kfree_skb(skb);



	btrtl_dev->ic_info = btrtl_match_ic(lmp_subver, hci_rev);

	btrtl_dev->ic_info = btrtl_match_ic(lmp_subver, hci_rev, hci_ver,

					    hdev->bus);



	if (!btrtl_dev->ic_info) {

		rtl_dev_err(hdev, "unknown IC info, lmp subver %04x, hci rev %04x\n",

			    lmp_subver, hci_rev);

		rtl_dev_err(hdev, "rtl: unknown IC info, lmp subver %04x, hci rev %04x, hci ver %04x",

			    lmp_subver, hci_rev, hci_ver);

		ret = -EINVAL;

		goto err_free;

	}
@@ -703,6 +742,10 @@ MODULE_LICENSE("GPL"); 
MODULE_FIRMWARE("rtl_bt/rtl8723a_fw.bin");

MODULE_FIRMWARE("rtl_bt/rtl8723b_fw.bin");

MODULE_FIRMWARE("rtl_bt/rtl8723b_config.bin");

MODULE_FIRMWARE("rtl_bt/rtl8723bs_fw.bin");

MODULE_FIRMWARE("rtl_bt/rtl8723bs_config.bin");

MODULE_FIRMWARE("rtl_bt/rtl8723ds_fw.bin");

MODULE_FIRMWARE("rtl_bt/rtl8723ds_config.bin");

MODULE_FIRMWARE("rtl_bt/rtl8761a_fw.bin");

MODULE_FIRMWARE("rtl_bt/rtl8761a_config.bin");

MODULE_FIRMWARE("rtl_bt/rtl8821a_fw.bin");

CRA Git | Maintained and supported by SUSTech CRA and CCSE