- Add support to set voltage/current of various regualtors
to power up/down BT QCA chip wcn3990.
- Add firmware download support for BT QCA chip wcn3990.
Signed-off-by: Balakrishna Godavarthi <bgodavar@xxxxxxxxxxxxxx>
---
drivers/bluetooth/btqca.c | 393 +++++++++++++++++++++++-------
drivers/bluetooth/btqca.h | 49 +++-
drivers/bluetooth/hci_qca.c | 501 +++++++++++++++++++++++++++++++++------
include/net/bluetooth/hci_core.h | 3 +-
net/bluetooth/hci_core.c | 2 +-
net/bluetooth/hci_request.c | 23 ++
net/bluetooth/hci_request.h | 2 +
7 files changed, 812 insertions(+), 161 deletions(-)
diff --git a/drivers/bluetooth/btqca.c b/drivers/bluetooth/btqca.c
index 0bbdfce..5b47df8 100644
--- a/drivers/bluetooth/btqca.c
+++ b/drivers/bluetooth/btqca.c
@@ -1,7 +1,7 @@
/*
* Bluetooth supports for Qualcomm Atheros chips
*
- * Copyright (c) 2015 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2015, 2018 The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
@@ -19,82 +19,18 @@
*/
#include <linux/module.h>
#include <linux/firmware.h>
-
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
-
#include "btqca.h"
#define VERSION "0.1"
-static int rome_patch_ver_req(struct hci_dev *hdev, u32 *rome_version)
-{
- struct sk_buff *skb;
- struct edl_event_hdr *edl;
- struct rome_version *ver;
- char cmd;
- int err = 0;
-
- BT_DBG("%s: ROME Patch Version Request", hdev->name);
-
- cmd = EDL_PATCH_VER_REQ_CMD;
- skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, EDL_PATCH_CMD_LEN,
- &cmd, HCI_VENDOR_PKT, HCI_INIT_TIMEOUT);
- if (IS_ERR(skb)) {
- err = PTR_ERR(skb);
- BT_ERR("%s: Failed to read version of ROME (%d)", hdev->name,
- err);
- return err;
- }
-
- if (skb->len != sizeof(*edl) + sizeof(*ver)) {
- BT_ERR("%s: Version size mismatch len %d", hdev->name,
- skb->len);
- err = -EILSEQ;
- goto out;
- }
-
- edl = (struct edl_event_hdr *)(skb->data);
- if (!edl) {
- BT_ERR("%s: TLV with no header", hdev->name);
- err = -EILSEQ;
- goto out;
- }
-
- if (edl->cresp != EDL_CMD_REQ_RES_EVT ||
- edl->rtype != EDL_APP_VER_RES_EVT) {
- BT_ERR("%s: Wrong packet received %d %d", hdev->name,
- edl->cresp, edl->rtype);
- err = -EIO;
- goto out;
- }
-
- ver = (struct rome_version *)(edl->data);
-
- BT_DBG("%s: Product:0x%08x", hdev->name, le32_to_cpu(ver->product_id));
- BT_DBG("%s: Patch :0x%08x", hdev->name, le16_to_cpu(ver->patch_ver));
- BT_DBG("%s: ROM :0x%08x", hdev->name, le16_to_cpu(ver->rome_ver));
- BT_DBG("%s: SOC :0x%08x", hdev->name, le32_to_cpu(ver->soc_id));
-
- /* ROME chipset version can be decided by patch and SoC
- * version, combination with upper 2 bytes from SoC
- * and lower 2 bytes from patch will be used.
- */
- *rome_version = (le32_to_cpu(ver->soc_id) << 16) |
- (le16_to_cpu(ver->rome_ver) & 0x0000ffff);
-
-out:
- kfree_skb(skb);
-
- return err;
-}
-
-static int rome_reset(struct hci_dev *hdev)
+static int qca_btsoc_reset(struct hci_dev *hdev)
{
struct sk_buff *skb;
int err;
- BT_DBG("%s: ROME HCI_RESET", hdev->name);
+ BT_DBG("%s: ROME/wcn3990 HCI_RESET", hdev->name);
skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
if (IS_ERR(skb)) {
@@ -108,7 +44,7 @@ static int rome_reset(struct hci_dev *hdev)
return 0;
}
-static void rome_tlv_check_data(struct rome_config *config,
+static void rome_tlv_check_data(struct qca_config *config,
const struct firmware *fw)
{
const u8 *data;
@@ -194,8 +130,121 @@ static void rome_tlv_check_data(struct rome_config *config,
}
}
-static int rome_tlv_send_segment(struct hci_dev *hdev, int idx, int seg_size,
- const u8 *data)
+static void cherokee_tlv_check_data(struct qca_config *config,
+ const struct firmware *fw, bool *dwnd_flag)
+{
+ const u8 *data;
+ u32 type_len;
+ u16 tag_id, tag_len;
+ int idx, length;
+ struct tlv_type_hdr *tlv;
+ struct cherokee_tlv_type_patch *tlv_patch;
+ struct tlv_type_nvm *tlv_nvm;
+
+ tlv = (struct tlv_type_hdr *)fw->data;
+
+ type_len = le32_to_cpu(tlv->type_len);
+ length = (type_len >> 8) & 0x00ffffff;
+
+ BT_DBG("TLV Type\t\t : 0x%x", type_len & 0x000000ff);
+ BT_DBG("Length\t\t : %d bytes", length);
+
+ switch (config->type) {
+ case TLV_TYPE_PATCH:
+ tlv_patch = (struct tlv_type_patch *)tlv->data;
+ BT_DBG("Total Length\t\t : %d bytes",
+ le32_to_cpu(tlv_patch->total_size));
+ BT_DBG("Patch Data Length\t : %d bytes",
+ le32_to_cpu(tlv_patch->data_length));
+ BT_DBG("Signing Format Version : 0x%x",
+ tlv_patch->format_version);
+ BT_DBG("Signature Algorithm\t : 0x%x",
+ tlv_patch->signature);
+ BT_DBG("Download flag\t : 0x%x",
+ tlv_patch->dwnd_cfg);
+ BT_DBG("Reserved\t\t : 0x%x",
+ le16_to_cpu(tlv_patch->reserved1));
+ BT_DBG("Product ID\t\t : 0x%04x",
+ le16_to_cpu(tlv_patch->product_id));
+ BT_DBG("Rom Build Version\t : 0x%04x",
+ le16_to_cpu(tlv_patch->rom_build));
+ BT_DBG("Patch Version\t\t : 0x%04x",
+ le16_to_cpu(tlv_patch->patch_version));
+ BT_DBG("Reserved\t\t : 0x%x",
+ le16_to_cpu(tlv_patch->reserved2));
+ BT_DBG("Patch Entry Address\t : 0x%x",
+ le32_to_cpu(tlv_patch->entry));
+ /* If the download flag is 0x03, don't wait
+ * for response from soc,i.e. 1 to n-1
+ * segment download.
+ */
+ if (tlv_patch->dwnd_cfg == 0x03)
+ *dwnd_flag = false;
+ else
+ *dwnd_flag = true;
+ break;
+
+ case TLV_TYPE_NVM:
+ idx = 0;
+ data = tlv->data;
+ while (idx < length) {
+ tlv_nvm = (struct tlv_type_nvm *)(data + idx);
+ tag_id = le16_to_cpu(tlv_nvm->tag_id);
+ tag_len = le16_to_cpu(tlv_nvm->tag_len);
+
+ /* Update NVM tags as needed */
+ switch (tag_id) {
+ case EDL_TAG_ID_HCI:
+ /* HCI transport layer parameters
+ * enabling software inband sleep
+ * onto controller side.
+ */
+ tlv_nvm->data[0] |= 0x80;
+
+ /* UART Baud Rate */
+ tlv_nvm->data[2] = config->user_baud_rate;
+ break;
+ case EDL_TAG_ID_DEEP_SLEEP:
+ /* Sleep enable mask
+ * enabling deep sleep feature on controller.
+ */
+ tlv_nvm->data[0] |= 0x01;
+ break;
+ }
+
+ idx += (sizeof(u16) + sizeof(u16) + 8 + tag_len);
+ }
+ break;
+ default:
+ BT_ERR("Unknown TLV type %d", config->type);
+ break;
+ }
+}
+
+static int cherokee_tlv_send_segment(struct hci_dev *hdev, int idx,
+ int seg_size, const u8 *data)
+{
+ u8 cmd[MAX_SIZE_PER_TLV_SEGMENT + 2];
+ int err = 0;
+
+ BT_DBG("%s: Download segment #%d size %d", hdev->name, idx, seg_size);
+
+ cmd[0] = EDL_PATCH_TLV_REQ_CMD;
+ cmd[1] = seg_size;
+ memcpy(cmd + 2, data, seg_size);
+
+ err = __hci_cmd_no_event(hdev, EDL_PATCH_CMD_OPCODE, seg_size + 2,
+ cmd);
+ if (err < 0) {
+ BT_ERR("%s: Failed to send TLV segment (%d)", hdev->name, err);
+ return err;
+ }
+
+ return err;
+}
+
+static int qca_btsoc_tlv_send_segment(struct hci_dev *hdev, int idx,
+ int seg_size, const u8 *data)
{
struct sk_buff *skb;
struct edl_event_hdr *edl;
@@ -264,16 +313,56 @@ static int rome_tlv_download_request(struct hci_dev *hdev,
data = fw->data;
for (i = 0; i < total_segment; i++) {
buffer = data + i * MAX_SIZE_PER_TLV_SEGMENT;
- ret = rome_tlv_send_segment(hdev, i, MAX_SIZE_PER_TLV_SEGMENT,
- buffer);
+ ret = qca_btsoc_tlv_send_segment(hdev, i,
+ MAX_SIZE_PER_TLV_SEGMENT, buffer);
if (ret < 0)
return -EIO;
}
if (remain_size) {
buffer = data + total_segment * MAX_SIZE_PER_TLV_SEGMENT;
- ret = rome_tlv_send_segment(hdev, total_segment, remain_size,
- buffer);
+ ret = qca_btsoc_tlv_send_segment(hdev, total_segment,
+ remain_size, buffer);
+ if (ret < 0)
+ return -EIO;
+ }
+
+ return 0;
+}
+static int cherokee_tlv_download_request(struct hci_dev *hdev,
+ const struct firmware *fw)
+{
+ const u8 *buffer, *data;
+ int total_segment, remain_size;
+ int ret, i;
+
+ if (!fw || !fw->data)
+ return -EINVAL;
+
+ total_segment = fw->size / MAX_SIZE_PER_TLV_SEGMENT;
+ remain_size = fw->size % MAX_SIZE_PER_TLV_SEGMENT;
+
+ BT_DBG("%s: Total segment num %d remain size %d total size %zu",
+ hdev->name, total_segment, remain_size, fw->size);
+
+ data = fw->data;
+ for (i = 0; i < total_segment; i++) {
+ buffer = data + i * MAX_SIZE_PER_TLV_SEGMENT;
+ /* Read response from soc for last segment sent */
+ if (!remain_size && ((i+1) == total_segment))
+ ret = qca_btsoc_tlv_send_segment(hdev, i,
+ MAX_SIZE_PER_TLV_SEGMENT, buffer);
+ else
+ ret = cherokee_tlv_send_segment(hdev, i,
+ MAX_SIZE_PER_TLV_SEGMENT, buffer);
+ if (ret < 0)
+ return -EIO;
+ }
+
+ if (remain_size) {
+ buffer = data + total_segment * MAX_SIZE_PER_TLV_SEGMENT;
+ ret = qca_btsoc_tlv_send_segment(hdev, total_segment,
+ remain_size, buffer);
if (ret < 0)
return -EIO;
}
@@ -282,7 +371,7 @@ static int rome_tlv_download_request(struct hci_dev *hdev,
}
static int rome_download_firmware(struct hci_dev *hdev,
- struct rome_config *config)
+ struct qca_config *config)
{
const struct firmware *fw;
int ret;
@@ -309,7 +398,46 @@ static int rome_download_firmware(struct hci_dev *hdev,
return ret;
}
-int qca_set_bdaddr_rome(struct hci_dev *hdev, const bdaddr_t *bdaddr)
+static int cherokee_download_firmware(struct hci_dev *hdev,
+ struct qca_config *config)
+{
+ const struct firmware *fw;
+ bool dwnd_flag = true;
+ int ret;
+
+ BT_INFO("%s: wcn3990 Downloading %s", hdev->name, config->fwname);
+
+ ret = request_firmware(&fw, config->fwname, &hdev->dev);
+ if (ret) {
+ BT_ERR("%s: Failed to request file: %s (%d)", hdev->name,
+ config->fwname, ret);
+ return ret;
+ }
+
+ cherokee_tlv_check_data(config, fw, &dwnd_flag);
+ /* check whether the download flag is set.if bit is enabled
+ * terminate the ram patch download. As we are not supporting,
+ * receiving of response from soc for every segment sent.
+ * We look for response from soc for last segment.
+ */
+ if (dwnd_flag == true && config->type == TLV_TYPE_PATCH) {
+ BT_ERR("%s: btsoc download flag enabled", hdev->name);
+ return -EOPNOTSUPP;
+ }
+
+ ret = cherokee_tlv_download_request(hdev, fw);
+ if (ret) {
+ BT_ERR("%s: Failed to download file: %s (%d)", hdev->name,
+ config->fwname, ret);
+ }
+
+ release_firmware(fw);
+
+ return ret;
+}
+
+
+int qca_btsoc_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr)
{
struct sk_buff *skb;
u8 cmd[9];
@@ -332,12 +460,12 @@ int qca_set_bdaddr_rome(struct hci_dev *hdev, const bdaddr_t *bdaddr)
return 0;
}
-EXPORT_SYMBOL_GPL(qca_set_bdaddr_rome);
+EXPORT_SYMBOL_GPL(qca_btsoc_set_bdaddr);
int qca_uart_setup_rome(struct hci_dev *hdev, uint8_t baudrate)
{
u32 rome_ver = 0;
- struct rome_config config;
+ struct qca_config config;
int err;
BT_DBG("%s: ROME setup on UART", hdev->name);
@@ -345,7 +473,7 @@ int qca_uart_setup_rome(struct hci_dev *hdev, uint8_t baudrate)
config.user_baud_rate = baudrate;
/* Get ROME version information */
- err = rome_patch_ver_req(hdev, &rome_ver);
+ err = qca_btsoc_patch_ver_req(hdev, &rome_ver);
if (err < 0 || rome_ver == 0) {
BT_ERR("%s: Failed to get version 0x%x", hdev->name, err);
return err;
@@ -374,7 +502,7 @@ int qca_uart_setup_rome(struct hci_dev *hdev, uint8_t baudrate)
}
/* Perform HCI reset */
- err = rome_reset(hdev);
+ err = qca_btsoc_reset(hdev);
if (err < 0) {
BT_ERR("%s: Failed to run HCI_RESET (%d)", hdev->name, err);
return err;
@@ -386,6 +514,111 @@ int qca_uart_setup_rome(struct hci_dev *hdev, uint8_t baudrate)
}
EXPORT_SYMBOL_GPL(qca_uart_setup_rome);
+int qca_btsoc_patch_ver_req(struct hci_dev *hdev, u32 *soc_version)
+{
+ struct sk_buff *skb;
+ struct edl_event_hdr *edl;
+ struct qca_btsoc_version *ver;
+ char cmd;
+ int err = 0;
+
+ BT_DBG("%s: BTSOC Patch Version Request", hdev->name);
+
+ cmd = EDL_PATCH_VER_REQ_CMD;
+ skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, EDL_PATCH_CMD_LEN,
+ &cmd, HCI_VENDOR_PKT, HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ err = PTR_ERR(skb);
+ BT_ERR("%s: Failed to read version of ROME (%d)", hdev->name,
+ err);
+ return err;
+ }
+
+ if (skb->len != sizeof(*edl) + sizeof(*ver)) {
+ BT_ERR("%s: Version size mismatch len %d", hdev->name,
+ skb->len);
+ err = -EILSEQ;
+ goto out;
+ }
+
+ edl = (struct edl_event_hdr *)(skb->data);
+ if (!edl) {
+ BT_ERR("%s: TLV with no header", hdev->name);
+ err = -EILSEQ;
+ goto out;
+ }
+
+ if (edl->cresp != EDL_CMD_REQ_RES_EVT ||
+ edl->rtype != EDL_APP_VER_RES_EVT) {
+ BT_ERR("%s: Wrong packet received %d %d", hdev->name,
+ edl->cresp, edl->rtype);
+ err = -EIO;
+ goto out;
+ }
+
+ ver = (struct qca_btsoc_version *)(edl->data);
+
+ BT_DBG("%s: Product:0x%08x", hdev->name, le32_to_cpu(ver->product_id));
+ BT_DBG("%s: Patch :0x%08x", hdev->name, le16_to_cpu(ver->patch_ver));
+ BT_DBG("%s: ROM :0x%08x", hdev->name, le16_to_cpu(ver->btsoc_ver));
+ BT_DBG("%s: SOC :0x%08x", hdev->name, le32_to_cpu(ver->soc_id));
+
+ /* BTSOC chipset version can be decided by patch and SoC
+ * version, combination with upper 2 bytes from SoC
+ * and lower 2 bytes from patch will be used.
+ */
+ *soc_version = (le32_to_cpu(ver->soc_id) << 16) |
+ (le16_to_cpu(ver->btsoc_ver) & 0x0000ffff);
+
+out:
+ kfree_skb(skb);
+
+ return err;
+}
+EXPORT_SYMBOL_GPL(qca_btsoc_patch_ver_req);
+
+int qca_uart_setup_cherokee(struct hci_dev *hdev, uint8_t baudrate,
+ u32 *cherokee_ver)
+{
+ struct qca_config config;
+ int err;
+
+ BT_DBG("%s: wcn3990 setup on UART", hdev->name);
+ config.user_baud_rate = baudrate;
+
+ /* Download rampatch file */
+ config.type = TLV_TYPE_PATCH;
+ snprintf(config.fwname, sizeof(config.fwname), "qca/rampatch_%08x.tlv",
+ *cherokee_ver);
+ err = cherokee_download_firmware(hdev, &config);
+ if (err < 0) {
+ BT_ERR("%s: Failed to download patch (%d)", hdev->name, err);
+ return err;
+ }
+
+ /* Download NVM configuration */
+ config.type = TLV_TYPE_NVM;
+ snprintf(config.fwname, sizeof(config.fwname), "qca/nvm_%08x.bin",
+ *cherokee_ver);
+ err = cherokee_download_firmware(hdev, &config);
+ if (err < 0) {
+ BT_ERR("%s: Failed to download NVM (%d)", hdev->name, err);
+ return err;
+ }
+
+ /* Perform HCI reset */
+ err = qca_btsoc_reset(hdev);
+ if (err < 0) {
+ BT_ERR("%s: Failed to run HCI_RESET (%d)", hdev->name, err);
+ return err;
+ }
+
+ BT_INFO("%s: wcn3990 setup on UART is completed", hdev->name);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(qca_uart_setup_cherokee);
+
MODULE_AUTHOR("Ben Young Tae Kim <ytkim@xxxxxxxxxxxxxxxx>");
MODULE_DESCRIPTION("Bluetooth support for Qualcomm Atheros family ver " VERSION);
MODULE_VERSION(VERSION);
diff --git a/drivers/bluetooth/btqca.h b/drivers/bluetooth/btqca.h
index 65e994b..7608423 100644
--- a/drivers/bluetooth/btqca.h
+++ b/drivers/bluetooth/btqca.h
@@ -1,7 +1,7 @@
/*
* Bluetooth supports for Qualcomm Atheros ROME chips
*
- * Copyright (c) 2015 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2015, 2018 The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
@@ -37,6 +37,9 @@
#define EDL_TAG_ID_HCI (17)
#define EDL_TAG_ID_DEEP_SLEEP (27)
+#define CHEROKEE_POWERON_PULSE (0xFC)
+#define CHEROKEE_POWEROFF_PULSE (0xC0)
+
enum qca_bardrate {
QCA_BAUDRATE_115200 = 0,
QCA_BAUDRATE_57600,
@@ -66,7 +69,7 @@ enum rome_tlv_type {
TLV_TYPE_NVM
};
-struct rome_config {
+struct qca_config {
u8 type;
char fwname[64];
uint8_t user_baud_rate;
@@ -78,13 +81,14 @@ struct edl_event_hdr {
__u8 data[0];
} __packed;
-struct rome_version {
+struct qca_btsoc_version {
__le32 product_id;
__le16 patch_ver;
- __le16 rome_ver;
+ __le16 btsoc_ver;
__le32 soc_id;
} __packed;
+
struct tlv_seg_resp {
__u8 result;
} __packed;
@@ -102,6 +106,21 @@ struct tlv_type_patch {
__le32 entry;
} __packed;
+struct cherokee_tlv_type_patch {
+ __le32 total_size;
+ __le32 data_length;
+ __u8 format_version;
+ __u8 signature;
+ __u8 dwnd_cfg;
+ __le16 reserved1;
+ __le16 product_id;
+ __le16 rom_build;
+ __le16 patch_version;
+ __le16 reserved2;
+ __le32 entry;
+} __packed;
+
+
struct tlv_type_nvm {
__le16 tag_id;
__le16 tag_len;
@@ -115,14 +134,21 @@ struct tlv_type_hdr {
__u8 data[0];
} __packed;
+int qca_btsoc_cleanup(struct hci_dev *hdev);
+int btqca_power_setup(bool on);
+
#if IS_ENABLED(CONFIG_BT_QCA)
-int qca_set_bdaddr_rome(struct hci_dev *hdev, const bdaddr_t *bdaddr);
+int qca_btsoc_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr);
int qca_uart_setup_rome(struct hci_dev *hdev, uint8_t baudrate);
+int qca_uart_setup_cherokee(struct hci_dev *hdev, uint8_t baudrate,
+ u32 *cherokee_ver);
+int qca_btsoc_patch_ver_req(struct hci_dev *hdev, u32 *soc_version);
#else
-static inline int qca_set_bdaddr_rome(struct hci_dev *hdev, const bdaddr_t *bdaddr)
+static inline int qca_btsoc_set_bdaddr(struct hci_dev *hdev,
+ const bdaddr_t *bdaddr)
{
return -EOPNOTSUPP;
}
@@ -132,4 +158,15 @@ static inline int qca_uart_setup_rome(struct hci_dev *hdev, int speed)
return -EOPNOTSUPP;
}
+static inline int qca_uart_setup_cherokee(struct hci_dev *hdev,
+ uint8_t baudrate, u32 *cherokee_ver)
+{
+ return -EOPNOTSUPP;
+}
+
+static int qca_btsoc_patch_ver_req(struct hci_dev *hdev, u32 *cherokee_version)
+{
+ return -EOPNOTSUPP;
+}
+
#endif
diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index b7547e6..1343e63 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -5,7 +5,7 @@
* protocol extension to H4.
*
* Copyright (C) 2007 Texas Instruments, Inc.
- * Copyright (c) 2010, 2012 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2010, 2012, 2018 The Linux Foundation. All rights reserved.
*
* Acknowledgements:
* This file is based on hci_ll.c, which was...
@@ -35,9 +35,15 @@
#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/serdev.h>
-
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
+#include <asm-generic/delay.h>
+#include <linux/tty.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/regulator/consumer.h>
+#include <linux/of_device.h>
#include "hci_uart.h"
#include "btqca.h"
@@ -84,12 +90,12 @@ struct qca_data {
struct hci_uart *hu;
struct sk_buff *rx_skb;
struct sk_buff_head txq;
- struct sk_buff_head tx_wait_q; /* HCI_IBS wait queue */
- spinlock_t hci_ibs_lock; /* HCI_IBS state lock */
- u8 tx_ibs_state; /* HCI_IBS transmit side power state*/
- u8 rx_ibs_state; /* HCI_IBS receive side power state */
- bool tx_vote; /* Clock must be on for TX */
- bool rx_vote; /* Clock must be on for RX */
+ struct sk_buff_head tx_wait_q; /* HCI_IBS wait queue */
+ spinlock_t hci_ibs_lock; /* HCI_IBS state lock */
+ u8 tx_ibs_state; /* HCI_IBS transmit side power state*/
+ u8 rx_ibs_state; /* HCI_IBS receive side power state */
+ bool tx_vote; /* Clock must be on for TX */
+ bool rx_vote; /* Clock must be on for RX */
struct timer_list tx_idle_timer;
u32 tx_idle_delay;
struct timer_list wake_retrans_timer;
@@ -119,12 +125,49 @@ struct qca_data {
u64 votes_off;
};
+enum btqca_soc_t {
+ BTQCA_INVALID = -1,
+ BTQCA_AR3002,
+ BTQCA_ROME,
+ BTQCA_CHEROKEE
+};
+
struct qca_serdev {
struct hci_uart serdev_hu;
struct gpio_desc *bt_en;
struct clk *susclk;
+ enum btqca_soc_t btsoc_type;
+};
+
+/*
+ * voltage regulator information required for configuring the
+ * QCA bluetooth chipset
+ */
+struct btqca_vreg {
+ const char *name;
+ unsigned int min_v;
+ unsigned int max_v;
+ unsigned int load_ua;
};
+struct btqca_vreg_data {
+ enum btqca_soc_t soc_type;
+ struct btqca_vreg *vregs;
+ size_t num_vregs;
+};
+
+/*
+ * Platform data for the QCA bluetooth power driver.
+ */
+struct btqca_power {
+ struct device *dev;
+ struct btqca_vreg_data *vreg_data;
+ struct regulator_bulk_data *vreg_bulk;
+ bool vreg_status;
+};
+
+static struct btqca_power *qca;
+
static void __serial_clock_on(struct tty_struct *tty)
{
/* TODO: Some chipset requires to enable UART clock on client
@@ -462,9 +505,11 @@ static int qca_open(struct hci_uart *hu)
if (hu->serdev) {
serdev_device_open(hu->serdev);
-
qcadev = serdev_device_get_drvdata(hu->serdev);
- gpiod_set_value_cansleep(qcadev->bt_en, 1);
+ if (qcadev->btsoc_type == BTQCA_CHEROKEE)
+ btqca_power_setup(true);
+ else
+ gpiod_set_value_cansleep(qcadev->bt_en, 1);
}
BT_DBG("HCI_UART_QCA open, tx_idle_delay=%u, wake_retrans=%u",
@@ -553,7 +598,10 @@ static int qca_close(struct hci_uart *hu)
serdev_device_close(hu->serdev);
qcadev = serdev_device_get_drvdata(hu->serdev);
- gpiod_set_value_cansleep(qcadev->bt_en, 0);
+ if (qcadev->btsoc_type == BTQCA_CHEROKEE)
+ qca_btsoc_cleanup(hu->hdev);
+ else
+ gpiod_set_value_cansleep(qcadev->bt_en, 0);
}
kfree_skb(qca->rx_skb);
@@ -873,6 +921,8 @@ static uint8_t qca_get_baudrate_value(int speed)
return QCA_BAUDRATE_2000000;
case 3000000:
return QCA_BAUDRATE_3000000;
+ case 3200000:
+ return QCA_BAUDRATE_3200000;
case 3500000:
return QCA_BAUDRATE_3500000;
default:
@@ -887,7 +937,7 @@ static int qca_set_baudrate(struct hci_dev *hdev, uint8_t baudrate)
struct sk_buff *skb;
u8 cmd[] = { 0x01, 0x48, 0xFC, 0x01, 0x00 };
- if (baudrate > QCA_BAUDRATE_3000000)
+ if (baudrate > QCA_BAUDRATE_3200000)
return -EINVAL;
cmd[4] = baudrate;
@@ -924,62 +974,263 @@ static inline void host_set_baudrate(struct hci_uart *hu, unsigned int speed)
hci_uart_set_baudrate(hu, speed);
}
+static int qca_send_poweron_cmd(struct hci_dev *hdev)
+{
+ struct hci_uart *hu = hci_get_drvdata(hdev);
+ struct qca_data *qca = hu->priv;
+ struct sk_buff *skb;
+ u8 cmd;
+
+ BT_DBG("%s sending power on command to btsoc", hdev->name);
+ /* By sending 0xFC host is trying to power up the soc */
+ cmd = CHEROKEE_POWERON_PULSE;
+ skb = bt_skb_alloc(sizeof(cmd), GFP_ATOMIC);
+ if (!skb) {
+ BT_ERR("Failed to allocate memory for skb packet");
+ return -ENOMEM;
+ }
+
+ skb_put_data(skb, &cmd, sizeof(cmd));
+ hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
+
+ skb_queue_tail(&qca->txq, skb);
+ hci_uart_tx_wakeup(hu);
+
+ /* Wait for 100 us for soc to settle down */
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule_timeout(usecs_to_jiffies(100));
+ set_current_state(TASK_INTERRUPTIBLE);
+
+ return 0;
+}
+
+static int qca_send_poweroff_cmd(struct hci_dev *hdev)
+{
+ struct hci_uart *hu = hci_get_drvdata(hdev);
+ struct qca_data *qca = hu->priv;
+ struct sk_buff *skb;
+ u8 cmd;
+
+ BT_DBG("%s sending power off command to btsoc", hdev->name);
+ /* By sending 0xC0 host is trying to power off the soc */
+ cmd = CHEROKEE_POWEROFF_PULSE;
+ skb = bt_skb_alloc(sizeof(cmd), GFP_ATOMIC);
+ if (!skb) {
+ BT_ERR("Failed to allocate memory for skb packet");
+ return -ENOMEM;
+ }
+
+ skb_put_data(skb, &cmd, sizeof(cmd));
+ hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
+
+ skb_queue_tail(&qca->txq, skb);
+ hci_uart_tx_wakeup(hu);
+
+ /* Wait for 100 us for soc to settle down */
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule_timeout(usecs_to_jiffies(100));
+ set_current_state(TASK_INTERRUPTIBLE);
+
+ return 0;
+}
+
+static int qca_serdev_open(struct hci_uart *hu)
+{
+ int ret = 0;
+
+ if (hu->serdev)
+ serdev_device_open(hu->serdev);
+ else {
+ BT_ERR("%s:open operation not supported", hu->hdev->name);
+ ret = 1;
+ }
+
+ return ret;
+}
+
+int qca_btsoc_cleanup(struct hci_dev *hdev)
+{
+ struct hci_uart *hu = hci_get_drvdata(hdev);
+
+ /* change host baud rate before sending power off command */
+ host_set_baudrate(hu, 2400);
+ /* send 0xC0 command to btsoc before turning off regulators */
+ qca_send_poweroff_cmd(hdev);
+ /* turn off btsoc */
+ return btqca_power_setup(false);
+}
+
+static int qca_serdev_close(struct hci_uart *hu)
+{
+ int ret = 0;
+
+ if (hu->serdev)
+ serdev_device_close(hu->serdev);
+ else {
+ BT_ERR("%s:close operation not supported", hu->hdev->name);
+ ret = 1;
+ }
+
+ return ret;
+}
+
static int qca_setup(struct hci_uart *hu)
{
struct hci_dev *hdev = hu->hdev;
struct qca_data *qca = hu->priv;
+ struct qca_serdev *qcadev;
unsigned int speed, qca_baudrate = QCA_BAUDRATE_115200;
int ret;
+ unsigned int soc_ver;
+
+ qcadev = serdev_device_get_drvdata(hu->serdev);
+
+ switch (qcadev->btsoc_type) {
+ case BTQCA_CHEROKEE:
+
+ BT_INFO("%s:setting up wcn3990", hdev->name);
+ /* Patch downloading has to be done without IBS mode */
+ clear_bit(STATE_IN_BAND_SLEEP_ENABLED, &qca->flags);
+ /* Setup initial baudrate */
+ speed = 0;
+ if (hu->init_speed)
+ speed = hu->init_speed;
+ else if (hu->proto->init_speed)
+ speed = hu->proto->init_speed;
+
+ if (speed)
+ host_set_baudrate(hu, speed);
+ else {
+ BT_ERR("%s:initial speed %u", hdev->name, speed);
+ return -1;
+ }
- BT_INFO("%s: ROME setup", hdev->name);
+ /* clear flow control- for sync cmd*/
+ hci_uart_set_flow_control(hu, true);
+ /* send poweron command to btsoc */
+ ret = qca_send_poweron_cmd(hdev);
+ if (ret) {
+ BT_ERR("%s:sending sync command failed", hdev->name);
+ return ret;
+ }
+
+ /* close port */
+ ret = qca_serdev_close(hu);
+ if (ret)
+ return ret;
+ /* reopen port */
+ ret = qca_serdev_open(hu);
+ if (ret)
+ return ret;
+ /* Setup initial baudrate */
+ speed = 0;
+ if (hu->init_speed)
+ speed = hu->init_speed;
+ else if (hu->proto->init_speed)
+ speed = hu->proto->init_speed;
+ if (speed)
+ host_set_baudrate(hu, speed);
+ else {
+ BT_ERR("%s:initial speed %u", hdev->name, speed);
+ return -1;
+ }
- /* Patch downloading has to be done without IBS mode */
- clear_bit(STATE_IN_BAND_SLEEP_ENABLED, &qca->flags);
+ /* Enable flow control */
+ hci_uart_set_flow_control(hu, false);
+ /* wait until flow control settled */
+ mdelay(100);
- /* Setup initial baudrate */
- speed = 0;
- if (hu->init_speed)
- speed = hu->init_speed;
- else if (hu->proto->init_speed)
- speed = hu->proto->init_speed;
+ ret = qca_btsoc_patch_ver_req(hdev, &soc_ver);
+ if (ret < 0 || soc_ver == 0) {
+ BT_ERR("%s: Failed to get version 0x%x", hdev->name,
+ ret);
+ return ret;
+ }
- if (speed)
- host_set_baudrate(hu, speed);
+ BT_INFO("%s:wcn3990 controller version 0x%08x", hdev->name,
+ soc_ver);
- /* Setup user speed if needed */
- speed = 0;
- if (hu->oper_speed)
- speed = hu->oper_speed;
- else if (hu->proto->oper_speed)
+ /* clear flow control */
+ hci_uart_set_flow_control(hu, true);
+ /* set operating speed */
speed = hu->proto->oper_speed;
+ if (speed) {
+ qca_baudrate = qca_get_baudrate_value(speed);
+ BT_INFO("%s: Set UART speed to %d", hdev->name, speed);
+ ret = qca_set_baudrate(hdev, qca_baudrate);
+ if (ret) {
+ BT_ERR("%s:Failed to change the baud rate(%d)",
+ hdev->name, ret);
+ return ret;
+ }
+ if (speed)
+ host_set_baudrate(hu, speed);
+ else {
+ BT_ERR("%s:Error in setting operator speed:%u",
+ hdev->name, speed);
+ return -1;
+ }
+ }
- if (speed) {
- qca_baudrate = qca_get_baudrate_value(speed);
+ /* Set flow control */
+ hci_uart_set_flow_control(hu, false);
+ /*Setup patch and NVM configurations */
+ ret = qca_uart_setup_cherokee(hdev, qca_baudrate, &soc_ver);
+ if (!ret) {
+ set_bit(STATE_IN_BAND_SLEEP_ENABLED, &qca->flags);
+ qca_debugfs_init(hdev);
+ }
- BT_INFO("%s: Set UART speed to %d", hdev->name, speed);
- ret = qca_set_baudrate(hdev, qca_baudrate);
- if (ret) {
- BT_ERR("%s: Failed to change the baud rate (%d)",
- hdev->name, ret);
- return ret;
+ /* Setup wcn3990 bdaddr */
+ hu->hdev->set_bdaddr = qca_btsoc_set_bdaddr;
+
+ return ret;
+
+ default:
+ BT_INFO("%s: ROME setup", hdev->name);
+ /* Patch downloading has to be done without IBS mode */
+ clear_bit(STATE_IN_BAND_SLEEP_ENABLED, &qca->flags);
+ /* Setup initial baudrate */
+ speed = 0;
+ if (hu->init_speed)
+ speed = hu->init_speed;
+ else if (hu->proto->init_speed)
+ speed = hu->proto->init_speed;
+ if (speed)
+ hci_uart_set_baudrate(hu, speed);
+
+ /* Setup user speed if needed */
+ speed = 0;
+ if (hu->oper_speed)
+ speed = hu->oper_speed;
+ else if (hu->proto->oper_speed)
+ speed = hu->proto->oper_speed;
+
+ if (speed) {
+ qca_baudrate = qca_get_baudrate_value(speed);
+
+ BT_INFO("%s: Set UART speed to %d", hdev->name, speed);
+ ret = qca_set_baudrate(hdev, qca_baudrate);
+ if (ret) {
+ BT_ERR("%s:Failed to change the baud rate(%d)",
+ hdev->name, ret);
+ return ret;
+ }
+ host_set_baudrate(hu, speed);
}
- host_set_baudrate(hu, speed);
- }
- /* Setup patch / NVM configurations */
- ret = qca_uart_setup_rome(hdev, qca_baudrate);
- if (!ret) {
- set_bit(STATE_IN_BAND_SLEEP_ENABLED, &qca->flags);
- qca_debugfs_init(hdev);
- } else if (ret == -ENOENT) {
- /* No patch/nvm-config found, run with original fw/config */
- ret = 0;
- }
+ /* Setup patch / NVM configurations */
+ ret = qca_uart_setup_rome(hdev, qca_baudrate);
+ if (!ret) {
+ set_bit(STATE_IN_BAND_SLEEP_ENABLED, &qca->flags);
+ qca_debugfs_init(hdev);
+ }
- /* Setup bdaddr */
- hu->hdev->set_bdaddr = qca_set_bdaddr_rome;
+ /* Setup bdaddr */
+ hu->hdev->set_bdaddr = qca_btsoc_set_bdaddr;
- return ret;
+ return ret;
+ }
}
static struct hci_uart_proto qca_proto = {
@@ -997,42 +1248,142 @@ static int qca_setup(struct hci_uart *hu)
.dequeue = qca_dequeue,
};
+static const struct btqca_vreg_data cherokee_data = {
+ .soc_type = BTQCA_CHEROKEE,
+ .vregs = (struct btqca_vreg []) {
+ { "vddio", 1352000, 1352000, 0 },
+ { "vddxtal", 1904000, 2040000, 0 },
+ { "vddcore", 1800000, 1800000, 1 },
+ { "vddpa", 130400, 1304000, 1 },
+ { "vddldo", 3000000, 3312000, 1 },
+ { "vddpwd", 3312000, 3600000, 0 },
+ },
+ .num_vregs = 6,
+};
+
+int btqca_power_setup(bool on)
+{
+ int ret = 0;
+ int i;
+ struct btqca_vreg *vregs;
+
+ if (!qca || !qca->vreg_data || !qca->vreg_bulk)
+ return -EINVAL;
+ vregs = qca->vreg_data->vregs;
+
+ BT_DBG("on: %d", on);
+
+ /* turn on if regualtors are off */
+ if (on == true && qca->vreg_status == false) {
+ qca->vreg_status = true;
+ for (i = 0; i < qca->vreg_data->num_vregs; i++) {
+ regulator_set_voltage(qca->vreg_bulk[i].consumer,
+ vregs[i].min_v,
+ vregs[i].max_v);
+
+ if (vregs[i].load_ua)
+ regulator_set_load(qca->vreg_bulk[i].consumer,
+ vregs[i].load_ua);
+
+ regulator_enable(qca->vreg_bulk[i].consumer);
+ }
+ } else if (on == false && qca->vreg_status == true) {
+ qca->vreg_status = false;
+ for (i = 0; i < qca->vreg_data->num_vregs; i++) {
+ regulator_disable(qca->vreg_bulk[i].consumer);
+ regulator_set_voltage(qca->vreg_bulk[i].consumer,
+ 0, vregs[i].max_v);
+ if (vregs[i].load_ua)
+ regulator_set_load(qca->vreg_bulk[i].consumer,
+ 0);
+ }
+ }
+
+ return ret;
+}
+
+static int init_regulators(struct btqca_power *qca,
+ const struct btqca_vreg *vregs,
+ size_t num_vregs)
+{
+ int i;
+
+ qca->vreg_bulk = devm_kzalloc(qca->dev, num_vregs *
+ sizeof(struct regulator_bulk_data),
+ GFP_KERNEL);
+ if (!qca->vreg_bulk)
+ return -ENOMEM;
+
+ for (i = 0; i < num_vregs; i++)
+ qca->vreg_bulk[i].supply = vregs[i].name;
+
+ return devm_regulator_bulk_get(qca->dev, num_vregs, qca->vreg_bulk);
+}
+
static int qca_serdev_probe(struct serdev_device *serdev)
{
struct qca_serdev *qcadev;
- int err;
+ struct btqca_vreg_data *data;
+ int err = 0;
qcadev = devm_kzalloc(&serdev->dev, sizeof(*qcadev), GFP_KERNEL);
if (!qcadev)
return -ENOMEM;
qcadev->serdev_hu.serdev = serdev;
+ data = of_device_get_match_data(&serdev->dev);
+ if (data && data->soc_type == BTQCA_CHEROKEE)
+ qcadev->btsoc_type = BTQCA_CHEROKEE;
+ else
+ qcadev->btsoc_type = BTQCA_ROME;
+
serdev_device_set_drvdata(serdev, qcadev);
+ if (qcadev->btsoc_type == BTQCA_CHEROKEE) {
+ qca = kzalloc(sizeof(struct btqca_power), GFP_KERNEL);
+ if (!qca)
+ return -ENOMEM;
+
+ qca->dev = &serdev->dev;
+ qca->vreg_data = data;
+ err = init_regulators(qca, data->vregs, data->num_vregs);
+ if (err) {
+ BT_ERR("Failed to init regualtors:%d", err);
+ kfree(qca);
+ }
- qcadev->bt_en = devm_gpiod_get(&serdev->dev, "enable",
- GPIOD_OUT_LOW);
- if (IS_ERR(qcadev->bt_en)) {
- dev_err(&serdev->dev, "failed to acquire enable gpio\n");
- return PTR_ERR(qcadev->bt_en);
- }
+ /* set voltage regulator status as false */
+ qca->vreg_status = false;
+ err = hci_uart_register_device(&qcadev->serdev_hu, &qca_proto);
+ if (err) {
+ BT_ERR("wcn3990 serdev registration failed");
+ kfree(qca);
+ }
+ } else {
+ qcadev->bt_en = devm_gpiod_get(&serdev->dev, "enable",
+ GPIOD_OUT_LOW);
+ if (IS_ERR(qcadev->bt_en)) {
+ dev_err(&serdev->dev, "failed to acquire enable gpio\n");
+ return PTR_ERR(qcadev->bt_en);
+ }
- qcadev->susclk = devm_clk_get(&serdev->dev, NULL);
- if (IS_ERR(qcadev->susclk)) {
- dev_err(&serdev->dev, "failed to acquire clk\n");
- return PTR_ERR(qcadev->susclk);
- }
+ qcadev->susclk = devm_clk_get(&serdev->dev, NULL);
+ if (IS_ERR(qcadev->susclk)) {
+ dev_err(&serdev->dev, "failed to acquire clk\n");
+ return PTR_ERR(qcadev->susclk);
+ }
- err = clk_set_rate(qcadev->susclk, SUSCLK_RATE_32KHZ);
- if (err)
- return err;
+ err = clk_set_rate(qcadev->susclk, SUSCLK_RATE_32KHZ);
+ if (err)
+ return err;
- err = clk_prepare_enable(qcadev->susclk);
- if (err)
- return err;
+ err = clk_prepare_enable(qcadev->susclk);
+ if (err)
+ return err;
- err = hci_uart_register_device(&qcadev->serdev_hu, &qca_proto);
- if (err)
- clk_disable_unprepare(qcadev->susclk);
+ err = hci_uart_register_device(&qcadev->serdev_hu, &qca_proto);
+ if (err)
+ clk_disable_unprepare(qcadev->susclk);
+ }
return err;
}
@@ -1042,12 +1393,16 @@ static void qca_serdev_remove(struct serdev_device *serdev)
struct qca_serdev *qcadev = serdev_device_get_drvdata(serdev);
hci_uart_unregister_device(&qcadev->serdev_hu);
-
- clk_disable_unprepare(qcadev->susclk);
+ if (qcadev->btsoc_type == BTQCA_CHEROKEE) {
+ btqca_power_setup(false);
+ kfree(qca);
+ } else
+ clk_disable_unprepare(qcadev->susclk);
}
static const struct of_device_id qca_bluetooth_of_match[] = {
{ .compatible = "qcom,qca6174-bt" },
+ { .compatible = "qca,wcn3990-bt", .data = &cherokee_data},
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, qca_bluetooth_of_match);
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index c10cb79..b932ec50 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1418,7 +1418,8 @@ struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
const void *param, u32 timeout);
struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen,
const void *param, u8 event, u32 timeout);
-
+int __hci_cmd_no_event(struct hci_dev *hdev, u16 opcode, u32 plen,
+ const void *param);
int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
const void *param);
void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 97ef85e..8addd97 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -3370,7 +3370,7 @@ int hci_unregister_cb(struct hci_cb *cb)
}
EXPORT_SYMBOL(hci_unregister_cb);
-static void hci_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
+void hci_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
{
int err;
diff --git a/net/bluetooth/hci_request.c b/net/bluetooth/hci_request.c
index f7d6ba6..1ffee59a 100644
--- a/net/bluetooth/hci_request.c
+++ b/net/bluetooth/hci_request.c
@@ -114,6 +114,29 @@ void hci_req_sync_cancel(struct hci_dev *hdev, int err)
}
}
+/* Queue a frame to an asynchronous transfer to btdevice,
+ * with out any event from btdevice.
+ */
+int __hci_cmd_no_event(struct hci_dev *hdev, u16 opcode, u32 plen,
+ const void *param)
+{
+ struct sk_buff *skb;
+
+ BT_DBG("%s opcode 0x%4.4x plen %d", hdev->name, opcode, plen);
+
+ skb = hci_prepare_cmd(hdev, opcode, plen, param);
+ if (!skb) {
+ BT_ERR("%s no memory for command (opcode 0x%4.4x)",
+ hdev->name, opcode);
+ return -ENOMEM;
+ }
+
+ hci_send_frame(hdev, skb);
+
+ return 0;
+}
+EXPORT_SYMBOL(__hci_cmd_no_event);
+
struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen,
const void *param, u8 event, u32 timeout)
{
diff --git a/net/bluetooth/hci_request.h b/net/bluetooth/hci_request.h
index dde77bd..a855edd 100644
--- a/net/bluetooth/hci_request.h
+++ b/net/bluetooth/hci_request.h
@@ -128,3 +128,5 @@ static inline u16 eir_append_le16(u8 *eir, u16 eir_len, u8 type, u16 data)
return eir_len;
}
+
+void hci_send_frame(struct hci_dev *hdev, struct sk_buff *skb);
--
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