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path: root/drivers/bluetooth/btrtl.c
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Diffstat (limited to 'drivers/bluetooth/btrtl.c')
-rw-r--r--drivers/bluetooth/btrtl.c1439
1 files changed, 1265 insertions, 174 deletions
diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c
index 8279094dd713..5603b282f9bc 100644
--- a/drivers/bluetooth/btrtl.c
+++ b/drivers/bluetooth/btrtl.c
@@ -1,23 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Bluetooth support for Realtek devices
*
* Copyright (C) 2015 Endless Mobile, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
*/
#include <linux/module.h>
#include <linux/firmware.h>
-#include <asm/unaligned.h>
+#include <linux/unaligned.h>
#include <linux/usb.h>
#include <net/bluetooth/bluetooth.h>
@@ -27,13 +17,380 @@
#define VERSION "0.1"
+#define RTL_CHIP_8723CS_CG 3
+#define RTL_CHIP_8723CS_VF 4
+#define RTL_CHIP_8723CS_XX 5
#define RTL_EPATCH_SIGNATURE "Realtech"
-#define RTL_ROM_LMP_3499 0x3499
+#define RTL_EPATCH_SIGNATURE_V2 "RTBTCore"
+#define RTL_ROM_LMP_8703B 0x8703
#define RTL_ROM_LMP_8723A 0x1200
#define RTL_ROM_LMP_8723B 0x8723
#define RTL_ROM_LMP_8821A 0x8821
#define RTL_ROM_LMP_8761A 0x8761
#define RTL_ROM_LMP_8822B 0x8822
+#define RTL_ROM_LMP_8852A 0x8852
+#define RTL_ROM_LMP_8851B 0x8851
+#define RTL_ROM_LMP_8922A 0x8922
+#define RTL_CONFIG_MAGIC 0x8723ab55
+
+#define RTL_VSC_OP_COREDUMP 0xfcff
+
+#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_MATCH_FL_CHIP_TYPE (1 << 4)
+#define IC_INFO(lmps, hcir, hciv, bus) \
+ .match_flags = IC_MATCH_FL_LMPSUBV | IC_MATCH_FL_HCIREV | \
+ IC_MATCH_FL_HCIVER | IC_MATCH_FL_HCIBUS, \
+ .lmp_subver = (lmps), \
+ .hci_rev = (hcir), \
+ .hci_ver = (hciv), \
+ .hci_bus = (bus)
+
+#define RTL_CHIP_SUBVER (&(struct rtl_vendor_cmd) {{0x10, 0x38, 0x04, 0x28, 0x80}})
+#define RTL_CHIP_REV (&(struct rtl_vendor_cmd) {{0x10, 0x3A, 0x04, 0x28, 0x80}})
+#define RTL_SEC_PROJ (&(struct rtl_vendor_cmd) {{0x10, 0xA4, 0xAD, 0x00, 0xb0}})
+
+#define RTL_PATCH_SNIPPETS 0x01
+#define RTL_PATCH_DUMMY_HEADER 0x02
+#define RTL_PATCH_SECURITY_HEADER 0x03
+
+enum btrtl_chip_id {
+ CHIP_ID_8723A,
+ CHIP_ID_8723B,
+ CHIP_ID_8821A,
+ CHIP_ID_8761A,
+ CHIP_ID_8822B = 8,
+ CHIP_ID_8723D,
+ CHIP_ID_8821C,
+ CHIP_ID_8822C = 13,
+ CHIP_ID_8761B,
+ CHIP_ID_8852A = 18,
+ CHIP_ID_8852B = 20,
+ CHIP_ID_8852C = 25,
+ CHIP_ID_8851B = 36,
+ CHIP_ID_8922A = 44,
+ CHIP_ID_8852BT = 47,
+ CHIP_ID_8761C = 51,
+};
+
+struct id_table {
+ __u16 match_flags;
+ __u16 lmp_subver;
+ __u16 hci_rev;
+ __u8 hci_ver;
+ __u8 hci_bus;
+ __u8 chip_type;
+ bool config_needed;
+ bool has_rom_version;
+ bool has_msft_ext;
+ char *fw_name;
+ char *cfg_name;
+ char *hw_info;
+};
+
+struct btrtl_device_info {
+ const struct id_table *ic_info;
+ u8 rom_version;
+ u8 *fw_data;
+ int fw_len;
+ u8 *cfg_data;
+ int cfg_len;
+ bool drop_fw;
+ int project_id;
+ u8 key_id;
+ struct list_head patch_subsecs;
+};
+
+static const struct id_table ic_id_table[] = {
+ /* 8723A */
+ { IC_INFO(RTL_ROM_LMP_8723A, 0xb, 0x6, HCI_USB),
+ .config_needed = false,
+ .has_rom_version = false,
+ .fw_name = "rtl_bt/rtl8723a_fw",
+ .cfg_name = NULL,
+ .hw_info = "rtl8723au" },
+
+ /* 8723BS */
+ { IC_INFO(RTL_ROM_LMP_8723B, 0xb, 0x6, HCI_UART),
+ .config_needed = true,
+ .has_rom_version = true,
+ .fw_name = "rtl_bt/rtl8723bs_fw",
+ .cfg_name = "rtl_bt/rtl8723bs_config",
+ .hw_info = "rtl8723bs" },
+
+ /* 8723B */
+ { IC_INFO(RTL_ROM_LMP_8723B, 0xb, 0x6, HCI_USB),
+ .config_needed = false,
+ .has_rom_version = true,
+ .fw_name = "rtl_bt/rtl8723b_fw",
+ .cfg_name = "rtl_bt/rtl8723b_config",
+ .hw_info = "rtl8723bu" },
+
+ /* 8723CS-CG */
+ { .match_flags = IC_MATCH_FL_LMPSUBV | IC_MATCH_FL_CHIP_TYPE |
+ IC_MATCH_FL_HCIBUS,
+ .lmp_subver = RTL_ROM_LMP_8703B,
+ .chip_type = RTL_CHIP_8723CS_CG,
+ .hci_bus = HCI_UART,
+ .config_needed = true,
+ .has_rom_version = true,
+ .fw_name = "rtl_bt/rtl8723cs_cg_fw",
+ .cfg_name = "rtl_bt/rtl8723cs_cg_config",
+ .hw_info = "rtl8723cs-cg" },
+
+ /* 8723CS-VF */
+ { .match_flags = IC_MATCH_FL_LMPSUBV | IC_MATCH_FL_CHIP_TYPE |
+ IC_MATCH_FL_HCIBUS,
+ .lmp_subver = RTL_ROM_LMP_8703B,
+ .chip_type = RTL_CHIP_8723CS_VF,
+ .hci_bus = HCI_UART,
+ .config_needed = true,
+ .has_rom_version = true,
+ .fw_name = "rtl_bt/rtl8723cs_vf_fw",
+ .cfg_name = "rtl_bt/rtl8723cs_vf_config",
+ .hw_info = "rtl8723cs-vf" },
+
+ /* 8723CS-XX */
+ { .match_flags = IC_MATCH_FL_LMPSUBV | IC_MATCH_FL_CHIP_TYPE |
+ IC_MATCH_FL_HCIBUS,
+ .lmp_subver = RTL_ROM_LMP_8703B,
+ .chip_type = RTL_CHIP_8723CS_XX,
+ .hci_bus = HCI_UART,
+ .config_needed = true,
+ .has_rom_version = true,
+ .fw_name = "rtl_bt/rtl8723cs_xx_fw",
+ .cfg_name = "rtl_bt/rtl8723cs_xx_config",
+ .hw_info = "rtl8723cs" },
+
+ /* 8723D */
+ { IC_INFO(RTL_ROM_LMP_8723B, 0xd, 0x8, HCI_USB),
+ .config_needed = true,
+ .has_rom_version = true,
+ .fw_name = "rtl_bt/rtl8723d_fw",
+ .cfg_name = "rtl_bt/rtl8723d_config",
+ .hw_info = "rtl8723du" },
+
+ /* 8723DS */
+ { IC_INFO(RTL_ROM_LMP_8723B, 0xd, 0x8, HCI_UART),
+ .config_needed = true,
+ .has_rom_version = true,
+ .fw_name = "rtl_bt/rtl8723ds_fw",
+ .cfg_name = "rtl_bt/rtl8723ds_config",
+ .hw_info = "rtl8723ds" },
+
+ /* 8821A */
+ { IC_INFO(RTL_ROM_LMP_8821A, 0xa, 0x6, HCI_USB),
+ .config_needed = false,
+ .has_rom_version = true,
+ .fw_name = "rtl_bt/rtl8821a_fw",
+ .cfg_name = "rtl_bt/rtl8821a_config",
+ .hw_info = "rtl8821au" },
+
+ /* 8821C */
+ { IC_INFO(RTL_ROM_LMP_8821A, 0xc, 0x8, HCI_USB),
+ .config_needed = false,
+ .has_rom_version = true,
+ .has_msft_ext = true,
+ .fw_name = "rtl_bt/rtl8821c_fw",
+ .cfg_name = "rtl_bt/rtl8821c_config",
+ .hw_info = "rtl8821cu" },
+
+ /* 8821CS */
+ { IC_INFO(RTL_ROM_LMP_8821A, 0xc, 0x8, HCI_UART),
+ .config_needed = true,
+ .has_rom_version = true,
+ .has_msft_ext = true,
+ .fw_name = "rtl_bt/rtl8821cs_fw",
+ .cfg_name = "rtl_bt/rtl8821cs_config",
+ .hw_info = "rtl8821cs" },
+
+ /* 8761A */
+ { IC_INFO(RTL_ROM_LMP_8761A, 0xa, 0x6, HCI_USB),
+ .config_needed = false,
+ .has_rom_version = true,
+ .fw_name = "rtl_bt/rtl8761a_fw",
+ .cfg_name = "rtl_bt/rtl8761a_config",
+ .hw_info = "rtl8761au" },
+
+ /* 8761B */
+ { IC_INFO(RTL_ROM_LMP_8761A, 0xb, 0xa, HCI_UART),
+ .config_needed = false,
+ .has_rom_version = true,
+ .has_msft_ext = true,
+ .fw_name = "rtl_bt/rtl8761b_fw",
+ .cfg_name = "rtl_bt/rtl8761b_config",
+ .hw_info = "rtl8761btv" },
+
+ /* 8761BU */
+ { IC_INFO(RTL_ROM_LMP_8761A, 0xb, 0xa, HCI_USB),
+ .config_needed = false,
+ .has_rom_version = true,
+ .fw_name = "rtl_bt/rtl8761bu_fw",
+ .cfg_name = "rtl_bt/rtl8761bu_config",
+ .hw_info = "rtl8761bu" },
+
+ /* 8761CU */
+ { IC_INFO(RTL_ROM_LMP_8761A, 0x0e, 0, HCI_USB),
+ .config_needed = false,
+ .has_rom_version = true,
+ .fw_name = "rtl_bt/rtl8761cu_fw",
+ .cfg_name = "rtl_bt/rtl8761cu_config",
+ .hw_info = "rtl8761cu" },
+
+ /* 8822C with UART interface */
+ { IC_INFO(RTL_ROM_LMP_8822B, 0xc, 0x8, HCI_UART),
+ .config_needed = true,
+ .has_rom_version = true,
+ .has_msft_ext = true,
+ .fw_name = "rtl_bt/rtl8822cs_fw",
+ .cfg_name = "rtl_bt/rtl8822cs_config",
+ .hw_info = "rtl8822cs" },
+
+ /* 8822C with UART interface */
+ { IC_INFO(RTL_ROM_LMP_8822B, 0xc, 0xa, HCI_UART),
+ .config_needed = true,
+ .has_rom_version = true,
+ .has_msft_ext = true,
+ .fw_name = "rtl_bt/rtl8822cs_fw",
+ .cfg_name = "rtl_bt/rtl8822cs_config",
+ .hw_info = "rtl8822cs" },
+
+ /* 8822C with USB interface */
+ { IC_INFO(RTL_ROM_LMP_8822B, 0xc, 0xa, HCI_USB),
+ .config_needed = false,
+ .has_rom_version = true,
+ .has_msft_ext = true,
+ .fw_name = "rtl_bt/rtl8822cu_fw",
+ .cfg_name = "rtl_bt/rtl8822cu_config",
+ .hw_info = "rtl8822cu" },
+
+ /* 8822B */
+ { IC_INFO(RTL_ROM_LMP_8822B, 0xb, 0x7, HCI_USB),
+ .config_needed = true,
+ .has_rom_version = true,
+ .has_msft_ext = true,
+ .fw_name = "rtl_bt/rtl8822b_fw",
+ .cfg_name = "rtl_bt/rtl8822b_config",
+ .hw_info = "rtl8822bu" },
+
+ /* 8852A */
+ { IC_INFO(RTL_ROM_LMP_8852A, 0xa, 0xb, HCI_USB),
+ .config_needed = false,
+ .has_rom_version = true,
+ .has_msft_ext = true,
+ .fw_name = "rtl_bt/rtl8852au_fw",
+ .cfg_name = "rtl_bt/rtl8852au_config",
+ .hw_info = "rtl8852au" },
+
+ /* 8852B with UART interface */
+ { IC_INFO(RTL_ROM_LMP_8852A, 0xb, 0xb, HCI_UART),
+ .config_needed = true,
+ .has_rom_version = true,
+ .has_msft_ext = true,
+ .fw_name = "rtl_bt/rtl8852bs_fw",
+ .cfg_name = "rtl_bt/rtl8852bs_config",
+ .hw_info = "rtl8852bs" },
+
+ /* 8852B */
+ { IC_INFO(RTL_ROM_LMP_8852A, 0xb, 0xb, HCI_USB),
+ .config_needed = false,
+ .has_rom_version = true,
+ .has_msft_ext = true,
+ .fw_name = "rtl_bt/rtl8852bu_fw",
+ .cfg_name = "rtl_bt/rtl8852bu_config",
+ .hw_info = "rtl8852bu" },
+
+ /* 8852C */
+ { IC_INFO(RTL_ROM_LMP_8852A, 0xc, 0xc, HCI_USB),
+ .config_needed = false,
+ .has_rom_version = true,
+ .has_msft_ext = true,
+ .fw_name = "rtl_bt/rtl8852cu_fw",
+ .cfg_name = "rtl_bt/rtl8852cu_config",
+ .hw_info = "rtl8852cu" },
+
+ /* 8851B */
+ { IC_INFO(RTL_ROM_LMP_8851B, 0xb, 0xc, HCI_USB),
+ .config_needed = false,
+ .has_rom_version = true,
+ .has_msft_ext = false,
+ .fw_name = "rtl_bt/rtl8851bu_fw",
+ .cfg_name = "rtl_bt/rtl8851bu_config",
+ .hw_info = "rtl8851bu" },
+
+ /* 8922A */
+ { IC_INFO(RTL_ROM_LMP_8922A, 0xa, 0xc, HCI_USB),
+ .config_needed = false,
+ .has_rom_version = true,
+ .has_msft_ext = true,
+ .fw_name = "rtl_bt/rtl8922au_fw",
+ .cfg_name = "rtl_bt/rtl8922au_config",
+ .hw_info = "rtl8922au" },
+
+ /* 8852BT/8852BE-VT */
+ { IC_INFO(RTL_ROM_LMP_8852A, 0x87, 0xc, HCI_USB),
+ .config_needed = false,
+ .has_rom_version = true,
+ .has_msft_ext = true,
+ .fw_name = "rtl_bt/rtl8852btu_fw",
+ .cfg_name = "rtl_bt/rtl8852btu_config",
+ .hw_info = "rtl8852btu" },
+ };
+
+static const struct id_table *btrtl_match_ic(u16 lmp_subver, u16 hci_rev,
+ u8 hci_ver, u8 hci_bus,
+ u8 chip_type)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(ic_id_table); i++) {
+ if ((ic_id_table[i].match_flags & IC_MATCH_FL_LMPSUBV) &&
+ (ic_id_table[i].lmp_subver != lmp_subver))
+ continue;
+ 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) &&
+ (ic_id_table[i].hci_ver != 0))
+ continue;
+ if ((ic_id_table[i].match_flags & IC_MATCH_FL_HCIBUS) &&
+ (ic_id_table[i].hci_bus != hci_bus))
+ continue;
+ if ((ic_id_table[i].match_flags & IC_MATCH_FL_CHIP_TYPE) &&
+ (ic_id_table[i].chip_type != chip_type))
+ continue;
+
+ break;
+ }
+ if (i >= ARRAY_SIZE(ic_id_table))
+ return NULL;
+
+ return &ic_id_table[i];
+}
+
+static struct sk_buff *btrtl_read_local_version(struct hci_dev *hdev)
+{
+ struct sk_buff *skb;
+
+ skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
+ HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ rtl_dev_err(hdev, "HCI_OP_READ_LOCAL_VERSION failed (%ld)",
+ PTR_ERR(skb));
+ return skb;
+ }
+
+ if (skb->len != sizeof(struct hci_rp_read_local_version)) {
+ rtl_dev_err(hdev, "HCI_OP_READ_LOCAL_VERSION event length mismatch");
+ kfree_skb(skb);
+ return ERR_PTR(-EIO);
+ }
+
+ return skb;
+}
static int rtl_read_rom_version(struct hci_dev *hdev, u8 *version)
{
@@ -43,20 +400,20 @@ static int rtl_read_rom_version(struct hci_dev *hdev, u8 *version)
/* Read RTL ROM version command */
skb = __hci_cmd_sync(hdev, 0xfc6d, 0, NULL, HCI_INIT_TIMEOUT);
if (IS_ERR(skb)) {
- BT_ERR("%s: Read ROM version failed (%ld)",
- hdev->name, PTR_ERR(skb));
+ rtl_dev_err(hdev, "Read ROM version failed (%ld)",
+ PTR_ERR(skb));
return PTR_ERR(skb);
}
if (skb->len != sizeof(*rom_version)) {
- BT_ERR("%s: RTL version event length mismatch", hdev->name);
+ rtl_dev_err(hdev, "version event length mismatch");
kfree_skb(skb);
return -EIO;
}
rom_version = (struct rtl_rom_version_evt *)skb->data;
- BT_INFO("%s: rom_version status=%x version=%x",
- hdev->name, rom_version->status, rom_version->version);
+ rtl_dev_info(hdev, "rom_version status=%x version=%x",
+ rom_version->status, rom_version->version);
*version = rom_version->version;
@@ -64,16 +421,232 @@ static int rtl_read_rom_version(struct hci_dev *hdev, u8 *version)
return 0;
}
-static int rtl8723b_parse_firmware(struct hci_dev *hdev, u16 lmp_subver,
- const struct firmware *fw,
+static int btrtl_vendor_read_reg16(struct hci_dev *hdev,
+ struct rtl_vendor_cmd *cmd, u8 *rp)
+{
+ struct sk_buff *skb;
+ int err = 0;
+
+ skb = __hci_cmd_sync(hdev, 0xfc61, sizeof(*cmd), cmd,
+ HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ err = PTR_ERR(skb);
+ rtl_dev_err(hdev, "RTL: Read reg16 failed (%d)", err);
+ return err;
+ }
+
+ if (skb->len != 3 || skb->data[0]) {
+ bt_dev_err(hdev, "RTL: Read reg16 length mismatch");
+ kfree_skb(skb);
+ return -EIO;
+ }
+
+ if (rp)
+ memcpy(rp, skb->data + 1, 2);
+
+ kfree_skb(skb);
+
+ return 0;
+}
+
+static void *rtl_iov_pull_data(struct rtl_iovec *iov, u32 len)
+{
+ void *data = iov->data;
+
+ if (iov->len < len)
+ return NULL;
+
+ iov->data += len;
+ iov->len -= len;
+
+ return data;
+}
+
+static void btrtl_insert_ordered_subsec(struct rtl_subsection *node,
+ struct btrtl_device_info *btrtl_dev)
+{
+ struct list_head *pos;
+ struct list_head *next;
+ struct rtl_subsection *subsec;
+
+ list_for_each_safe(pos, next, &btrtl_dev->patch_subsecs) {
+ subsec = list_entry(pos, struct rtl_subsection, list);
+ if (subsec->prio >= node->prio)
+ break;
+ }
+ __list_add(&node->list, pos->prev, pos);
+}
+
+static int btrtl_parse_section(struct hci_dev *hdev,
+ struct btrtl_device_info *btrtl_dev, u32 opcode,
+ u8 *data, u32 len)
+{
+ struct rtl_section_hdr *hdr;
+ struct rtl_subsection *subsec;
+ struct rtl_common_subsec *common_subsec;
+ struct rtl_sec_hdr *sec_hdr;
+ int i;
+ u8 *ptr;
+ u16 num_subsecs;
+ u32 subsec_len;
+ int rc = 0;
+ struct rtl_iovec iov = {
+ .data = data,
+ .len = len,
+ };
+
+ hdr = rtl_iov_pull_data(&iov, sizeof(*hdr));
+ if (!hdr)
+ return -EINVAL;
+ num_subsecs = le16_to_cpu(hdr->num);
+
+ for (i = 0; i < num_subsecs; i++) {
+ common_subsec = rtl_iov_pull_data(&iov, sizeof(*common_subsec));
+ if (!common_subsec)
+ break;
+ subsec_len = le32_to_cpu(common_subsec->len);
+
+ rtl_dev_dbg(hdev, "subsec, eco 0x%02x, len %08x",
+ common_subsec->eco, subsec_len);
+
+ ptr = rtl_iov_pull_data(&iov, subsec_len);
+ if (!ptr)
+ break;
+
+ if (common_subsec->eco != btrtl_dev->rom_version + 1)
+ continue;
+
+ switch (opcode) {
+ case RTL_PATCH_SECURITY_HEADER:
+ sec_hdr = (void *)common_subsec;
+ if (sec_hdr->key_id != btrtl_dev->key_id)
+ continue;
+ break;
+ }
+
+ subsec = kzalloc(sizeof(*subsec), GFP_KERNEL);
+ if (!subsec)
+ return -ENOMEM;
+ subsec->opcode = opcode;
+ subsec->prio = common_subsec->prio;
+ subsec->len = subsec_len;
+ subsec->data = ptr;
+ btrtl_insert_ordered_subsec(subsec, btrtl_dev);
+ rc += subsec_len;
+ }
+
+ return rc;
+}
+
+static int rtlbt_parse_firmware_v2(struct hci_dev *hdev,
+ struct btrtl_device_info *btrtl_dev,
unsigned char **_buf)
{
- const u8 extension_sig[] = { 0x51, 0x04, 0xfd, 0x77 };
+ struct rtl_epatch_header_v2 *hdr;
+ int rc;
+ u8 key_id;
+ u32 num_sections;
+ struct rtl_section *section;
+ struct rtl_subsection *entry, *tmp;
+ u32 section_len;
+ u32 opcode;
+ int len = 0;
+ int i;
+ u8 *ptr;
+ struct rtl_iovec iov = {
+ .data = btrtl_dev->fw_data,
+ .len = btrtl_dev->fw_len - 7, /* Cut the tail */
+ };
+
+ key_id = btrtl_dev->key_id;
+
+ hdr = rtl_iov_pull_data(&iov, sizeof(*hdr));
+ if (!hdr)
+ return -EINVAL;
+ num_sections = le32_to_cpu(hdr->num_sections);
+
+ rtl_dev_dbg(hdev, "FW version %08x-%08x", *((u32 *)hdr->fw_version),
+ *((u32 *)(hdr->fw_version + 4)));
+
+ for (i = 0; i < num_sections; i++) {
+ section = rtl_iov_pull_data(&iov, sizeof(*section));
+ if (!section)
+ break;
+ section_len = le32_to_cpu(section->len);
+ opcode = le32_to_cpu(section->opcode);
+
+ rtl_dev_dbg(hdev, "opcode 0x%04x", section->opcode);
+
+ ptr = rtl_iov_pull_data(&iov, section_len);
+ if (!ptr)
+ break;
+
+ switch (opcode) {
+ case RTL_PATCH_SNIPPETS:
+ rc = btrtl_parse_section(hdev, btrtl_dev, opcode,
+ ptr, section_len);
+ break;
+ case RTL_PATCH_SECURITY_HEADER:
+ /* If key_id from chip is zero, ignore all security
+ * headers.
+ */
+ if (!key_id)
+ break;
+ rc = btrtl_parse_section(hdev, btrtl_dev, opcode,
+ ptr, section_len);
+ break;
+ case RTL_PATCH_DUMMY_HEADER:
+ rc = btrtl_parse_section(hdev, btrtl_dev, opcode,
+ ptr, section_len);
+ break;
+ default:
+ rc = 0;
+ break;
+ }
+ if (rc < 0) {
+ rtl_dev_err(hdev, "RTL: Parse section (%u) err %d",
+ opcode, rc);
+ return rc;
+ }
+ len += rc;
+ }
+
+ if (!len)
+ return -ENODATA;
+
+ /* Allocate mem and copy all found subsecs. */
+ ptr = kvmalloc(len, GFP_KERNEL);
+ if (!ptr)
+ return -ENOMEM;
+
+ len = 0;
+ list_for_each_entry_safe(entry, tmp, &btrtl_dev->patch_subsecs, list) {
+ rtl_dev_dbg(hdev, "RTL: opcode %08x, addr %p, len 0x%x",
+ entry->opcode, entry->data, entry->len);
+ memcpy(ptr + len, entry->data, entry->len);
+ len += entry->len;
+ }
+
+ if (!len) {
+ kvfree(ptr);
+ return -EPERM;
+ }
+
+ *_buf = ptr;
+ return len;
+}
+
+static int rtlbt_parse_firmware(struct hci_dev *hdev,
+ struct btrtl_device_info *btrtl_dev,
+ unsigned char **_buf)
+{
+ static const u8 extension_sig[] = { 0x51, 0x04, 0xfd, 0x77 };
+ struct btrealtek_data *coredump_info = hci_get_priv(hdev);
struct rtl_epatch_header *epatch_info;
unsigned char *buf;
- int i, ret, len;
+ int i, len;
size_t min_size;
- u8 opcode, length, data, rom_version = 0;
+ u8 opcode, length, data;
int project_id = -1;
const unsigned char *fwptr, *chip_id_base;
const unsigned char *patch_length_base, *patch_offset_base;
@@ -87,30 +660,49 @@ static int rtl8723b_parse_firmware(struct hci_dev *hdev, u16 lmp_subver,
{ RTL_ROM_LMP_8723B, 1 },
{ RTL_ROM_LMP_8821A, 2 },
{ RTL_ROM_LMP_8761A, 3 },
+ { RTL_ROM_LMP_8703B, 7 },
{ RTL_ROM_LMP_8822B, 8 },
+ { RTL_ROM_LMP_8723B, 9 }, /* 8723D */
+ { RTL_ROM_LMP_8821A, 10 }, /* 8821C */
+ { RTL_ROM_LMP_8822B, 13 }, /* 8822C */
+ { RTL_ROM_LMP_8761A, 14 }, /* 8761B */
+ { RTL_ROM_LMP_8852A, 18 }, /* 8852A */
+ { RTL_ROM_LMP_8852A, 20 }, /* 8852B */
+ { RTL_ROM_LMP_8852A, 25 }, /* 8852C */
+ { RTL_ROM_LMP_8851B, 36 }, /* 8851B */
+ { RTL_ROM_LMP_8922A, 44 }, /* 8922A */
+ { RTL_ROM_LMP_8852A, 47 }, /* 8852BT */
+ { RTL_ROM_LMP_8761A, 51 }, /* 8761C */
};
- ret = rtl_read_rom_version(hdev, &rom_version);
- if (ret)
- return ret;
+ if (btrtl_dev->fw_len <= 8)
+ return -EINVAL;
- min_size = sizeof(struct rtl_epatch_header) + sizeof(extension_sig) + 3;
- if (fw->size < min_size)
+ if (!memcmp(btrtl_dev->fw_data, RTL_EPATCH_SIGNATURE, 8))
+ min_size = sizeof(struct rtl_epatch_header) +
+ sizeof(extension_sig) + 3;
+ else if (!memcmp(btrtl_dev->fw_data, RTL_EPATCH_SIGNATURE_V2, 8))
+ min_size = sizeof(struct rtl_epatch_header_v2) +
+ sizeof(extension_sig) + 3;
+ else
return -EINVAL;
- fwptr = fw->data + fw->size - sizeof(extension_sig);
+ if (btrtl_dev->fw_len < min_size)
+ return -EINVAL;
+
+ fwptr = btrtl_dev->fw_data + btrtl_dev->fw_len - sizeof(extension_sig);
if (memcmp(fwptr, extension_sig, sizeof(extension_sig)) != 0) {
- BT_ERR("%s: extension section signature mismatch", hdev->name);
+ rtl_dev_err(hdev, "extension section signature mismatch");
return -EINVAL;
}
/* Loop from the end of the firmware parsing instructions, until
* we find an instruction that identifies the "project ID" for the
- * hardware supported by this firwmare file.
- * Once we have that, we double-check that that project_id is suitable
+ * hardware supported by this firmware file.
+ * Once we have that, we double-check that project_id is suitable
* for the hardware we are working with.
*/
- while (fwptr >= fw->data + (sizeof(struct rtl_epatch_header) + 3)) {
+ while (fwptr >= btrtl_dev->fw_data + (sizeof(*epatch_info) + 3)) {
opcode = *--fwptr;
length = *--fwptr;
data = *--fwptr;
@@ -121,8 +713,7 @@ static int rtl8723b_parse_firmware(struct hci_dev *hdev, u16 lmp_subver,
break;
if (length == 0) {
- BT_ERR("%s: found instruction with length 0",
- hdev->name);
+ rtl_dev_err(hdev, "found instruction with length 0");
return -EINVAL;
}
@@ -135,36 +726,44 @@ static int rtl8723b_parse_firmware(struct hci_dev *hdev, u16 lmp_subver,
}
if (project_id < 0) {
- BT_ERR("%s: failed to find version instruction", hdev->name);
+ rtl_dev_err(hdev, "failed to find version instruction");
return -EINVAL;
}
/* Find project_id in table */
for (i = 0; i < ARRAY_SIZE(project_id_to_lmp_subver); i++) {
- if (project_id == project_id_to_lmp_subver[i].id)
+ if (project_id == project_id_to_lmp_subver[i].id) {
+ btrtl_dev->project_id = project_id;
break;
+ }
}
if (i >= ARRAY_SIZE(project_id_to_lmp_subver)) {
- BT_ERR("%s: unknown project id %d", hdev->name, project_id);
+ rtl_dev_err(hdev, "unknown project id %d", project_id);
return -EINVAL;
}
- if (lmp_subver != project_id_to_lmp_subver[i].lmp_subver) {
- BT_ERR("%s: firmware is for %x but this is a %x", hdev->name,
- project_id_to_lmp_subver[i].lmp_subver, lmp_subver);
+ if (btrtl_dev->ic_info->lmp_subver !=
+ project_id_to_lmp_subver[i].lmp_subver) {
+ rtl_dev_err(hdev, "firmware is for %x but this is a %x",
+ project_id_to_lmp_subver[i].lmp_subver,
+ btrtl_dev->ic_info->lmp_subver);
return -EINVAL;
}
- epatch_info = (struct rtl_epatch_header *)fw->data;
- if (memcmp(epatch_info->signature, RTL_EPATCH_SIGNATURE, 8) != 0) {
- BT_ERR("%s: bad EPATCH signature", hdev->name);
+ if (memcmp(btrtl_dev->fw_data, RTL_EPATCH_SIGNATURE, 8) != 0) {
+ if (!memcmp(btrtl_dev->fw_data, RTL_EPATCH_SIGNATURE_V2, 8))
+ return rtlbt_parse_firmware_v2(hdev, btrtl_dev, _buf);
+ rtl_dev_err(hdev, "bad EPATCH signature");
return -EINVAL;
}
+ epatch_info = (struct rtl_epatch_header *)btrtl_dev->fw_data;
num_patches = le16_to_cpu(epatch_info->num_patches);
+
BT_DBG("fw_version=%x, num_patches=%d",
le32_to_cpu(epatch_info->fw_version), num_patches);
+ coredump_info->rtl_dump.fw_version = le32_to_cpu(epatch_info->fw_version);
/* After the rtl_epatch_header there is a funky patch metadata section.
* Assuming 2 patches, the layout is:
@@ -173,16 +772,16 @@ static int rtl8723b_parse_firmware(struct hci_dev *hdev, u16 lmp_subver,
* Find the right patch for this chip.
*/
min_size += 8 * num_patches;
- if (fw->size < min_size)
+ if (btrtl_dev->fw_len < min_size)
return -EINVAL;
- chip_id_base = fw->data + sizeof(struct rtl_epatch_header);
+ chip_id_base = btrtl_dev->fw_data + sizeof(struct rtl_epatch_header);
patch_length_base = chip_id_base + (sizeof(u16) * num_patches);
patch_offset_base = patch_length_base + (sizeof(u16) * num_patches);
for (i = 0; i < num_patches; i++) {
u16 chip_id = get_unaligned_le16(chip_id_base +
(i * sizeof(u16)));
- if (chip_id == rom_version + 1) {
+ if (chip_id == btrtl_dev->rom_version + 1) {
patch_length = get_unaligned_le16(patch_length_base +
(i * sizeof(u16)));
patch_offset = get_unaligned_le32(patch_offset_base +
@@ -192,24 +791,25 @@ static int rtl8723b_parse_firmware(struct hci_dev *hdev, u16 lmp_subver,
}
if (!patch_offset) {
- BT_ERR("%s: didn't find patch for chip id %d",
- hdev->name, rom_version);
+ rtl_dev_err(hdev, "didn't find patch for chip id %d",
+ btrtl_dev->rom_version);
return -EINVAL;
}
BT_DBG("length=%x offset=%x index %d", patch_length, patch_offset, i);
min_size = patch_offset + patch_length;
- if (fw->size < min_size)
+ if (btrtl_dev->fw_len < min_size)
return -EINVAL;
/* Copy the firmware into a new buffer and write the version at
* the end.
*/
len = patch_length;
- buf = kmemdup(fw->data + patch_offset, patch_length, GFP_KERNEL);
+ buf = kvmalloc(patch_length, GFP_KERNEL);
if (!buf)
return -ENOMEM;
+ memcpy(buf, btrtl_dev->fw_data + patch_offset, patch_length - 4);
memcpy(buf + patch_length - 4, &epatch_info->fw_version, 4);
*_buf = buf;
@@ -224,36 +824,41 @@ static int rtl_download_firmware(struct hci_dev *hdev,
int frag_len = RTL_FRAG_LEN;
int ret = 0;
int i;
+ int j = 0;
+ struct sk_buff *skb;
+ struct hci_rp_read_local_version *rp;
- dl_cmd = kmalloc(sizeof(struct rtl_download_cmd), GFP_KERNEL);
+ dl_cmd = kmalloc(sizeof(*dl_cmd), GFP_KERNEL);
if (!dl_cmd)
return -ENOMEM;
for (i = 0; i < frag_num; i++) {
struct sk_buff *skb;
- BT_DBG("download fw (%d/%d)", i, frag_num);
+ dl_cmd->index = j++;
+ if (dl_cmd->index == 0x7f)
+ j = 1;
- dl_cmd->index = i;
if (i == (frag_num - 1)) {
dl_cmd->index |= 0x80; /* data end */
frag_len = fw_len % RTL_FRAG_LEN;
}
+ rtl_dev_dbg(hdev, "download fw (%d/%d). index = %d", i,
+ frag_num, dl_cmd->index);
memcpy(dl_cmd->data, data, frag_len);
/* Send download command */
skb = __hci_cmd_sync(hdev, 0xfc20, frag_len + 1, dl_cmd,
HCI_INIT_TIMEOUT);
if (IS_ERR(skb)) {
- BT_ERR("%s: download fw command failed (%ld)",
- hdev->name, PTR_ERR(skb));
- ret = -PTR_ERR(skb);
+ rtl_dev_err(hdev, "download fw command failed (%ld)",
+ PTR_ERR(skb));
+ ret = PTR_ERR(skb);
goto out;
}
if (skb->len != sizeof(struct rtl_download_response)) {
- BT_ERR("%s: download fw event length mismatch",
- hdev->name);
+ rtl_dev_err(hdev, "download fw event length mismatch");
kfree_skb(skb);
ret = -EIO;
goto out;
@@ -263,214 +868,700 @@ static int rtl_download_firmware(struct hci_dev *hdev,
data += RTL_FRAG_LEN;
}
+ skb = btrtl_read_local_version(hdev);
+ if (IS_ERR(skb)) {
+ ret = PTR_ERR(skb);
+ rtl_dev_err(hdev, "read local version failed");
+ goto out;
+ }
+
+ rp = (struct hci_rp_read_local_version *)skb->data;
+ rtl_dev_info(hdev, "fw version 0x%04x%04x",
+ __le16_to_cpu(rp->hci_rev), __le16_to_cpu(rp->lmp_subver));
+ kfree_skb(skb);
+
out:
kfree(dl_cmd);
return ret;
}
-static int rtl_load_config(struct hci_dev *hdev, const char *name, u8 **buff)
+static int rtl_load_file(struct hci_dev *hdev, const char *name, u8 **buff)
{
const struct firmware *fw;
int ret;
- BT_INFO("%s: rtl: loading %s", hdev->name, name);
+ rtl_dev_info(hdev, "loading %s", name);
ret = request_firmware(&fw, name, &hdev->dev);
if (ret < 0)
return ret;
ret = fw->size;
- *buff = kmemdup(fw->data, ret, GFP_KERNEL);
+ *buff = kvmemdup(fw->data, fw->size, GFP_KERNEL);
+ if (!*buff)
+ ret = -ENOMEM;
release_firmware(fw);
return ret;
}
-static int btrtl_setup_rtl8723a(struct hci_dev *hdev)
+static int btrtl_setup_rtl8723a(struct hci_dev *hdev,
+ struct btrtl_device_info *btrtl_dev)
{
- const struct firmware *fw;
- int ret;
-
- BT_INFO("%s: rtl: loading rtl_bt/rtl8723a_fw.bin", hdev->name);
- ret = request_firmware(&fw, "rtl_bt/rtl8723a_fw.bin", &hdev->dev);
- if (ret < 0) {
- BT_ERR("%s: Failed to load rtl_bt/rtl8723a_fw.bin", hdev->name);
- return ret;
- }
-
- if (fw->size < 8) {
- ret = -EINVAL;
- goto out;
- }
+ if (btrtl_dev->fw_len < 8)
+ return -EINVAL;
/* Check that the firmware doesn't have the epatch signature
* (which is only for RTL8723B and newer).
*/
- if (!memcmp(fw->data, RTL_EPATCH_SIGNATURE, 8)) {
- BT_ERR("%s: unexpected EPATCH signature!", hdev->name);
- ret = -EINVAL;
- goto out;
+ if (!memcmp(btrtl_dev->fw_data, RTL_EPATCH_SIGNATURE, 8)) {
+ rtl_dev_err(hdev, "unexpected EPATCH signature!");
+ return -EINVAL;
}
- ret = rtl_download_firmware(hdev, fw->data, fw->size);
-
-out:
- release_firmware(fw);
- return ret;
+ return rtl_download_firmware(hdev, btrtl_dev->fw_data,
+ btrtl_dev->fw_len);
}
-static int btrtl_setup_rtl8723b(struct hci_dev *hdev, u16 lmp_subver,
- const char *fw_name)
+static int btrtl_setup_rtl8723b(struct hci_dev *hdev,
+ struct btrtl_device_info *btrtl_dev)
{
unsigned char *fw_data = NULL;
- const struct firmware *fw;
int ret;
- int cfg_sz;
- u8 *cfg_buff = NULL;
u8 *tbuff;
- char *cfg_name = NULL;
- bool config_needed = false;
- switch (lmp_subver) {
- case RTL_ROM_LMP_8723B:
- cfg_name = "rtl_bt/rtl8723b_config.bin";
- break;
- case RTL_ROM_LMP_8821A:
- cfg_name = "rtl_bt/rtl8821a_config.bin";
- break;
- case RTL_ROM_LMP_8761A:
- cfg_name = "rtl_bt/rtl8761a_config.bin";
- break;
- case RTL_ROM_LMP_8822B:
- cfg_name = "rtl_bt/rtl8822b_config.bin";
- config_needed = true;
- break;
- default:
- BT_ERR("%s: rtl: no config according to lmp_subver %04x",
- hdev->name, lmp_subver);
- break;
- }
-
- if (cfg_name) {
- cfg_sz = rtl_load_config(hdev, cfg_name, &cfg_buff);
- if (cfg_sz < 0) {
- cfg_sz = 0;
- if (config_needed)
- BT_ERR("Necessary config file %s not found\n",
- cfg_name);
- }
- } else
- cfg_sz = 0;
-
- BT_INFO("%s: rtl: loading %s", hdev->name, fw_name);
- ret = request_firmware(&fw, fw_name, &hdev->dev);
- if (ret < 0) {
- BT_ERR("%s: Failed to load %s", hdev->name, fw_name);
- goto err_req_fw;
- }
-
- ret = rtl8723b_parse_firmware(hdev, lmp_subver, fw, &fw_data);
+ ret = rtlbt_parse_firmware(hdev, btrtl_dev, &fw_data);
if (ret < 0)
goto out;
- if (cfg_sz) {
- tbuff = kzalloc(ret + cfg_sz, GFP_KERNEL);
+ if (btrtl_dev->cfg_len > 0) {
+ tbuff = kvzalloc(ret + btrtl_dev->cfg_len, GFP_KERNEL);
if (!tbuff) {
ret = -ENOMEM;
goto out;
}
memcpy(tbuff, fw_data, ret);
- kfree(fw_data);
+ kvfree(fw_data);
- memcpy(tbuff + ret, cfg_buff, cfg_sz);
- ret += cfg_sz;
+ memcpy(tbuff + ret, btrtl_dev->cfg_data, btrtl_dev->cfg_len);
+ ret += btrtl_dev->cfg_len;
fw_data = tbuff;
}
- BT_INFO("cfg_sz %d, total size %d", cfg_sz, ret);
+ rtl_dev_info(hdev, "cfg_sz %d, total sz %d", btrtl_dev->cfg_len, ret);
ret = rtl_download_firmware(hdev, fw_data, ret);
out:
- release_firmware(fw);
- kfree(fw_data);
-err_req_fw:
- if (cfg_sz)
- kfree(cfg_buff);
+ kvfree(fw_data);
return ret;
}
-static struct sk_buff *btrtl_read_local_version(struct hci_dev *hdev)
+static void btrtl_coredump(struct hci_dev *hdev)
+{
+ static const u8 param[] = { 0x00, 0x00 };
+
+ __hci_cmd_send(hdev, RTL_VSC_OP_COREDUMP, sizeof(param), param);
+}
+
+static void btrtl_dmp_hdr(struct hci_dev *hdev, struct sk_buff *skb)
+{
+ struct btrealtek_data *coredump_info = hci_get_priv(hdev);
+ char buf[80];
+
+ if (coredump_info->rtl_dump.controller)
+ snprintf(buf, sizeof(buf), "Controller Name: %s\n",
+ coredump_info->rtl_dump.controller);
+ else
+ snprintf(buf, sizeof(buf), "Controller Name: Unknown\n");
+ skb_put_data(skb, buf, strlen(buf));
+
+ snprintf(buf, sizeof(buf), "Firmware Version: 0x%X\n",
+ coredump_info->rtl_dump.fw_version);
+ skb_put_data(skb, buf, strlen(buf));
+
+ snprintf(buf, sizeof(buf), "Driver: %s\n", coredump_info->rtl_dump.driver_name);
+ skb_put_data(skb, buf, strlen(buf));
+
+ snprintf(buf, sizeof(buf), "Vendor: Realtek\n");
+ skb_put_data(skb, buf, strlen(buf));
+}
+
+static void btrtl_register_devcoredump_support(struct hci_dev *hdev)
+{
+ hci_devcd_register(hdev, btrtl_coredump, btrtl_dmp_hdr, NULL);
+
+}
+
+void btrtl_set_driver_name(struct hci_dev *hdev, const char *driver_name)
+{
+ struct btrealtek_data *coredump_info = hci_get_priv(hdev);
+
+ coredump_info->rtl_dump.driver_name = driver_name;
+}
+EXPORT_SYMBOL_GPL(btrtl_set_driver_name);
+
+static bool rtl_has_chip_type(u16 lmp_subver)
+{
+ switch (lmp_subver) {
+ case RTL_ROM_LMP_8703B:
+ return true;
+ default:
+ break;
+ }
+
+ return false;
+}
+
+static int rtl_read_chip_type(struct hci_dev *hdev, u8 *type)
{
+ struct rtl_chip_type_evt *chip_type;
struct sk_buff *skb;
+ const unsigned char cmd_buf[] = {0x00, 0x94, 0xa0, 0x00, 0xb0};
- skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
- HCI_INIT_TIMEOUT);
+ /* Read RTL chip type command */
+ skb = __hci_cmd_sync(hdev, 0xfc61, 5, cmd_buf, HCI_INIT_TIMEOUT);
if (IS_ERR(skb)) {
- BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION failed (%ld)",
- hdev->name, PTR_ERR(skb));
- return skb;
+ rtl_dev_err(hdev, "Read chip type failed (%ld)",
+ PTR_ERR(skb));
+ return PTR_ERR(skb);
}
- if (skb->len != sizeof(struct hci_rp_read_local_version)) {
- BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION event length mismatch",
- hdev->name);
+ chip_type = skb_pull_data(skb, sizeof(*chip_type));
+ if (!chip_type) {
+ rtl_dev_err(hdev, "RTL chip type event length mismatch");
kfree_skb(skb);
- return ERR_PTR(-EIO);
+ return -EIO;
}
- return skb;
+ rtl_dev_info(hdev, "chip_type status=%x type=%x",
+ chip_type->status, chip_type->type);
+
+ *type = chip_type->type & 0x0f;
+
+ kfree_skb(skb);
+ return 0;
}
-int btrtl_setup_realtek(struct hci_dev *hdev)
+void btrtl_free(struct btrtl_device_info *btrtl_dev)
+{
+ struct rtl_subsection *entry, *tmp;
+
+ kvfree(btrtl_dev->fw_data);
+ kvfree(btrtl_dev->cfg_data);
+
+ list_for_each_entry_safe(entry, tmp, &btrtl_dev->patch_subsecs, list) {
+ list_del(&entry->list);
+ kfree(entry);
+ }
+
+ kfree(btrtl_dev);
+}
+EXPORT_SYMBOL_GPL(btrtl_free);
+
+struct btrtl_device_info *btrtl_initialize(struct hci_dev *hdev,
+ const char *postfix)
{
+ struct btrealtek_data *coredump_info = hci_get_priv(hdev);
+ struct btrtl_device_info *btrtl_dev;
struct sk_buff *skb;
struct hci_rp_read_local_version *resp;
- u16 lmp_subver;
+ struct hci_command_hdr *cmd;
+ char fw_name[40];
+ char cfg_name[40];
+ u16 hci_rev, lmp_subver;
+ u8 hci_ver, lmp_ver, chip_type = 0;
+ int ret;
+ int rc;
+ u8 key_id;
+ u8 reg_val[2];
+
+ btrtl_dev = kzalloc(sizeof(*btrtl_dev), GFP_KERNEL);
+ if (!btrtl_dev) {
+ ret = -ENOMEM;
+ goto err_alloc;
+ }
+
+ INIT_LIST_HEAD(&btrtl_dev->patch_subsecs);
+
+check_version:
+ ret = btrtl_vendor_read_reg16(hdev, RTL_CHIP_SUBVER, reg_val);
+ if (ret < 0)
+ goto err_free;
+ lmp_subver = get_unaligned_le16(reg_val);
+
+ if (lmp_subver == RTL_ROM_LMP_8822B) {
+ ret = btrtl_vendor_read_reg16(hdev, RTL_CHIP_REV, reg_val);
+ if (ret < 0)
+ goto err_free;
+ hci_rev = get_unaligned_le16(reg_val);
+
+ /* 8822E */
+ if (hci_rev == 0x000e) {
+ hci_ver = 0x0c;
+ lmp_ver = 0x0c;
+ btrtl_dev->ic_info = btrtl_match_ic(lmp_subver, hci_rev,
+ hci_ver, hdev->bus,
+ chip_type);
+ goto next;
+ }
+ }
skb = btrtl_read_local_version(hdev);
- if (IS_ERR(skb))
- return -PTR_ERR(skb);
+ if (IS_ERR(skb)) {
+ ret = PTR_ERR(skb);
+ goto err_free;
+ }
resp = (struct hci_rp_read_local_version *)skb->data;
- BT_INFO("%s: rtl: examining hci_ver=%02x hci_rev=%04x lmp_ver=%02x "
- "lmp_subver=%04x", hdev->name, 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_ver = resp->lmp_ver;
lmp_subver = le16_to_cpu(resp->lmp_subver);
+
kfree_skb(skb);
+ if (rtl_has_chip_type(lmp_subver)) {
+ ret = rtl_read_chip_type(hdev, &chip_type);
+ if (ret)
+ goto err_free;
+ }
+
+ btrtl_dev->ic_info = btrtl_match_ic(lmp_subver, hci_rev, hci_ver,
+ hdev->bus, chip_type);
+
+next:
+ rtl_dev_info(hdev, "examining hci_ver=%02x hci_rev=%04x lmp_ver=%02x lmp_subver=%04x",
+ hci_ver, hci_rev,
+ lmp_ver, lmp_subver);
+
+ if (!btrtl_dev->ic_info && !btrtl_dev->drop_fw)
+ btrtl_dev->drop_fw = true;
+ else
+ btrtl_dev->drop_fw = false;
+
+ if (btrtl_dev->drop_fw) {
+ skb = bt_skb_alloc(sizeof(*cmd), GFP_KERNEL);
+ if (!skb)
+ goto err_free;
+
+ cmd = skb_put(skb, HCI_COMMAND_HDR_SIZE);
+ cmd->opcode = cpu_to_le16(0xfc66);
+ cmd->plen = 0;
+
+ hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
+
+ ret = hdev->send(hdev, skb);
+ if (ret < 0) {
+ bt_dev_err(hdev, "sending frame failed (%d)", ret);
+ kfree_skb(skb);
+ goto err_free;
+ }
+
+ /* Ensure the above vendor command is sent to controller and
+ * process has done.
+ */
+ msleep(200);
+
+ goto check_version;
+ }
+
+ if (!btrtl_dev->ic_info) {
+ rtl_dev_info(hdev, "unknown IC info, lmp subver %04x, hci rev %04x, hci ver %04x",
+ lmp_subver, hci_rev, hci_ver);
+ return btrtl_dev;
+ }
+
+ if (btrtl_dev->ic_info->has_rom_version) {
+ ret = rtl_read_rom_version(hdev, &btrtl_dev->rom_version);
+ if (ret)
+ goto err_free;
+ }
+
+ if (!btrtl_dev->ic_info->fw_name) {
+ ret = -ENOMEM;
+ goto err_free;
+ }
+
+ rc = btrtl_vendor_read_reg16(hdev, RTL_SEC_PROJ, reg_val);
+ if (rc < 0)
+ goto err_free;
+
+ key_id = reg_val[0];
+ btrtl_dev->key_id = key_id;
+ rtl_dev_info(hdev, "%s: key id %u", __func__, key_id);
+
+ btrtl_dev->fw_len = -EIO;
+ if (lmp_subver == RTL_ROM_LMP_8852A && hci_rev == 0x000c) {
+ snprintf(fw_name, sizeof(fw_name), "%s_v2.bin",
+ btrtl_dev->ic_info->fw_name);
+ btrtl_dev->fw_len = rtl_load_file(hdev, fw_name,
+ &btrtl_dev->fw_data);
+ }
+
+ if (btrtl_dev->fw_len < 0) {
+ snprintf(fw_name, sizeof(fw_name), "%s.bin",
+ btrtl_dev->ic_info->fw_name);
+ btrtl_dev->fw_len = rtl_load_file(hdev, fw_name,
+ &btrtl_dev->fw_data);
+ }
+
+ if (btrtl_dev->fw_len < 0) {
+ rtl_dev_err(hdev, "firmware file %s not found",
+ btrtl_dev->ic_info->fw_name);
+ ret = btrtl_dev->fw_len;
+ goto err_free;
+ }
+
+ if (btrtl_dev->ic_info->cfg_name && !btrtl_dev->key_id) {
+ if (postfix) {
+ snprintf(cfg_name, sizeof(cfg_name), "%s-%s.bin",
+ btrtl_dev->ic_info->cfg_name, postfix);
+ } else {
+ snprintf(cfg_name, sizeof(cfg_name), "%s.bin",
+ btrtl_dev->ic_info->cfg_name);
+ }
+ btrtl_dev->cfg_len = rtl_load_file(hdev, cfg_name,
+ &btrtl_dev->cfg_data);
+ if (btrtl_dev->ic_info->config_needed &&
+ btrtl_dev->cfg_len <= 0) {
+ rtl_dev_err(hdev, "mandatory config file %s not found",
+ btrtl_dev->ic_info->cfg_name);
+ ret = btrtl_dev->cfg_len;
+ if (!ret)
+ ret = -EINVAL;
+ goto err_free;
+ }
+ }
+
+ /* The following chips supports the Microsoft vendor extension,
+ * therefore set the corresponding VsMsftOpCode.
+ */
+ if (btrtl_dev->ic_info->has_msft_ext)
+ hci_set_msft_opcode(hdev, 0xFCF0);
+
+ if (btrtl_dev->ic_info)
+ coredump_info->rtl_dump.controller = btrtl_dev->ic_info->hw_info;
+
+ return btrtl_dev;
+
+err_free:
+ btrtl_free(btrtl_dev);
+err_alloc:
+ return ERR_PTR(ret);
+}
+EXPORT_SYMBOL_GPL(btrtl_initialize);
+
+int btrtl_download_firmware(struct hci_dev *hdev,
+ struct btrtl_device_info *btrtl_dev)
+{
+ int err = 0;
+
/* Match a set of subver values that correspond to stock firmware,
* which is not compatible with standard btusb.
* If matched, upload an alternative firmware that does conform to
* standard btusb. Once that firmware is uploaded, the subver changes
* to a different value.
*/
- switch (lmp_subver) {
+ if (!btrtl_dev->ic_info) {
+ rtl_dev_info(hdev, "assuming no firmware upload needed");
+ err = 0;
+ goto done;
+ }
+
+ switch (btrtl_dev->ic_info->lmp_subver) {
case RTL_ROM_LMP_8723A:
- case RTL_ROM_LMP_3499:
- return btrtl_setup_rtl8723a(hdev);
+ err = btrtl_setup_rtl8723a(hdev, btrtl_dev);
+ break;
case RTL_ROM_LMP_8723B:
- return btrtl_setup_rtl8723b(hdev, lmp_subver,
- "rtl_bt/rtl8723b_fw.bin");
case RTL_ROM_LMP_8821A:
- return btrtl_setup_rtl8723b(hdev, lmp_subver,
- "rtl_bt/rtl8821a_fw.bin");
case RTL_ROM_LMP_8761A:
- return btrtl_setup_rtl8723b(hdev, lmp_subver,
- "rtl_bt/rtl8761a_fw.bin");
case RTL_ROM_LMP_8822B:
- return btrtl_setup_rtl8723b(hdev, lmp_subver,
- "rtl_bt/rtl8822b_fw.bin");
+ case RTL_ROM_LMP_8852A:
+ case RTL_ROM_LMP_8703B:
+ case RTL_ROM_LMP_8851B:
+ case RTL_ROM_LMP_8922A:
+ err = btrtl_setup_rtl8723b(hdev, btrtl_dev);
+ break;
+ default:
+ rtl_dev_info(hdev, "assuming no firmware upload needed");
+ break;
+ }
+
+done:
+ btrtl_register_devcoredump_support(hdev);
+
+ return err;
+}
+EXPORT_SYMBOL_GPL(btrtl_download_firmware);
+
+void btrtl_set_quirks(struct hci_dev *hdev, struct btrtl_device_info *btrtl_dev)
+{
+ /* Enable controller to do both LE scan and BR/EDR inquiry
+ * simultaneously.
+ */
+ hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY);
+
+ /* Enable central-peripheral role (able to create new connections with
+ * an existing connection in slave role).
+ */
+ /* Enable WBS supported for the specific Realtek devices. */
+ switch (btrtl_dev->project_id) {
+ case CHIP_ID_8822C:
+ case CHIP_ID_8852A:
+ case CHIP_ID_8852B:
+ case CHIP_ID_8852C:
+ case CHIP_ID_8851B:
+ case CHIP_ID_8922A:
+ case CHIP_ID_8852BT:
+ case CHIP_ID_8761C:
+ hci_set_quirk(hdev, HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED);
+
+ /* RTL8852C needs to transmit mSBC data continuously without
+ * the zero length of USB packets for the ALT 6 supported chips
+ */
+ if (btrtl_dev->project_id == CHIP_ID_8852C)
+ btrealtek_set_flag(hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP);
+
+ if (btrtl_dev->project_id == CHIP_ID_8852A ||
+ btrtl_dev->project_id == CHIP_ID_8852B ||
+ btrtl_dev->project_id == CHIP_ID_8852C)
+ hci_set_quirk(hdev,
+ HCI_QUIRK_USE_MSFT_EXT_ADDRESS_FILTER);
+
+ hci_set_aosp_capable(hdev);
+ break;
default:
- BT_INFO("rtl: assuming no firmware upload needed.");
- return 0;
+ rtl_dev_dbg(hdev, "Central-peripheral role not enabled.");
+ rtl_dev_dbg(hdev, "WBS supported not enabled.");
+ break;
+ }
+
+ if (!btrtl_dev->ic_info)
+ return;
+
+ switch (btrtl_dev->ic_info->lmp_subver) {
+ case RTL_ROM_LMP_8703B:
+ /* 8723CS reports two pages for local ext features,
+ * but it doesn't support any features from page 2 -
+ * it either responds with garbage or with error status
+ */
+ hci_set_quirk(hdev, HCI_QUIRK_BROKEN_LOCAL_EXT_FEATURES_PAGE_2);
+ break;
+ default:
+ break;
}
}
+EXPORT_SYMBOL_GPL(btrtl_set_quirks);
+
+int btrtl_setup_realtek(struct hci_dev *hdev)
+{
+ struct btrtl_device_info *btrtl_dev;
+ int ret;
+
+ btrtl_dev = btrtl_initialize(hdev, NULL);
+ if (IS_ERR(btrtl_dev))
+ return PTR_ERR(btrtl_dev);
+
+ ret = btrtl_download_firmware(hdev, btrtl_dev);
+
+ btrtl_set_quirks(hdev, btrtl_dev);
+
+ if (btrtl_dev->ic_info) {
+ hci_set_hw_info(hdev,
+ "RTL lmp_subver=%u hci_rev=%u hci_ver=%u hci_bus=%u",
+ btrtl_dev->ic_info->lmp_subver,
+ btrtl_dev->ic_info->hci_rev,
+ btrtl_dev->ic_info->hci_ver,
+ btrtl_dev->ic_info->hci_bus);
+ }
+
+ btrtl_free(btrtl_dev);
+ return ret;
+}
EXPORT_SYMBOL_GPL(btrtl_setup_realtek);
+int btrtl_shutdown_realtek(struct hci_dev *hdev)
+{
+ struct sk_buff *skb;
+ int ret;
+
+ /* According to the vendor driver, BT must be reset on close to avoid
+ * firmware crash.
+ */
+ skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_CMD_TIMEOUT);
+ if (IS_ERR(skb)) {
+ ret = PTR_ERR(skb);
+ bt_dev_err(hdev, "HCI reset during shutdown failed");
+ return ret;
+ }
+ kfree_skb(skb);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(btrtl_shutdown_realtek);
+
+static unsigned int btrtl_convert_baudrate(u32 device_baudrate)
+{
+ switch (device_baudrate) {
+ case 0x0252a00a:
+ return 230400;
+
+ case 0x05f75004:
+ return 921600;
+
+ case 0x00005004:
+ return 1000000;
+
+ case 0x04928002:
+ case 0x01128002:
+ return 1500000;
+
+ case 0x00005002:
+ return 2000000;
+
+ case 0x0000b001:
+ return 2500000;
+
+ case 0x04928001:
+ return 3000000;
+
+ case 0x052a6001:
+ return 3500000;
+
+ case 0x00005001:
+ return 4000000;
+
+ case 0x0252c014:
+ default:
+ return 115200;
+ }
+}
+
+int btrtl_get_uart_settings(struct hci_dev *hdev,
+ struct btrtl_device_info *btrtl_dev,
+ unsigned int *controller_baudrate,
+ u32 *device_baudrate, bool *flow_control)
+{
+ struct rtl_vendor_config *config;
+ struct rtl_vendor_config_entry *entry;
+ int i, total_data_len;
+ bool found = false;
+
+ total_data_len = btrtl_dev->cfg_len - sizeof(*config);
+ if (total_data_len <= 0) {
+ rtl_dev_warn(hdev, "no config loaded");
+ return -EINVAL;
+ }
+
+ config = (struct rtl_vendor_config *)btrtl_dev->cfg_data;
+ if (le32_to_cpu(config->signature) != RTL_CONFIG_MAGIC) {
+ rtl_dev_err(hdev, "invalid config magic");
+ return -EINVAL;
+ }
+
+ if (total_data_len < le16_to_cpu(config->total_len)) {
+ rtl_dev_err(hdev, "config is too short");
+ return -EINVAL;
+ }
+
+ for (i = 0; i < total_data_len; ) {
+ entry = ((void *)config->entry) + i;
+
+ switch (le16_to_cpu(entry->offset)) {
+ case 0xc:
+ if (entry->len < sizeof(*device_baudrate)) {
+ rtl_dev_err(hdev, "invalid UART config entry");
+ return -EINVAL;
+ }
+
+ *device_baudrate = get_unaligned_le32(entry->data);
+ *controller_baudrate = btrtl_convert_baudrate(
+ *device_baudrate);
+
+ if (entry->len >= 13)
+ *flow_control = !!(entry->data[12] & BIT(2));
+ else
+ *flow_control = false;
+
+ found = true;
+ break;
+
+ default:
+ rtl_dev_dbg(hdev, "skipping config entry 0x%x (len %u)",
+ le16_to_cpu(entry->offset), entry->len);
+ break;
+ }
+
+ i += sizeof(*entry) + entry->len;
+ }
+
+ if (!found) {
+ rtl_dev_err(hdev, "no UART config entry found");
+ return -ENOENT;
+ }
+
+ rtl_dev_dbg(hdev, "device baudrate = 0x%08x", *device_baudrate);
+ rtl_dev_dbg(hdev, "controller baudrate = %u", *controller_baudrate);
+ rtl_dev_dbg(hdev, "flow control %d", *flow_control);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(btrtl_get_uart_settings);
+
MODULE_AUTHOR("Daniel Drake <drake@endlessm.com>");
MODULE_DESCRIPTION("Bluetooth support for Realtek devices ver " VERSION);
MODULE_VERSION(VERSION);
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/rtl8723cs_cg_fw.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8723cs_cg_config.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8723cs_vf_fw.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8723cs_vf_config.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8723cs_xx_fw.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8723cs_xx_config.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8723d_fw.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8723d_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/rtl8761b_fw.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8761b_config.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8761bu_fw.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8761bu_config.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8761cu_fw.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8761cu_config.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8821a_fw.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8821a_config.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8821c_fw.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8821c_config.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8821cs_fw.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8821cs_config.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8822b_fw.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8822b_config.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8822cs_fw.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8822cs_config.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8822cu_fw.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8822cu_config.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8851bu_fw.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8851bu_config.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8852au_fw.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8852au_config.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8852bs_fw.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8852bs_config.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8852bu_fw.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8852bu_config.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8852btu_fw.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8852btu_config.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8852cu_fw.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8852cu_fw_v2.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8852cu_config.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8922au_fw.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8922au_config.bin");
generated by cgit (git 2.34.1) at 2025-12-25 08:53:53 +0000