linux/drivers/bluetooth/btmrvl_main.c
Linus Torvalds 5518b69b76 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:
 "Reasonably busy this cycle, but perhaps not as busy as in the 4.12
  merge window:

   1) Several optimizations for UDP processing under high load from
      Paolo Abeni.

   2) Support pacing internally in TCP when using the sch_fq packet
      scheduler for this is not practical. From Eric Dumazet.

   3) Support mutliple filter chains per qdisc, from Jiri Pirko.

   4) Move to 1ms TCP timestamp clock, from Eric Dumazet.

   5) Add batch dequeueing to vhost_net, from Jason Wang.

   6) Flesh out more completely SCTP checksum offload support, from
      Davide Caratti.

   7) More plumbing of extended netlink ACKs, from David Ahern, Pablo
      Neira Ayuso, and Matthias Schiffer.

   8) Add devlink support to nfp driver, from Simon Horman.

   9) Add RTM_F_FIB_MATCH flag to RTM_GETROUTE queries, from Roopa
      Prabhu.

  10) Add stack depth tracking to BPF verifier and use this information
      in the various eBPF JITs. From Alexei Starovoitov.

  11) Support XDP on qed device VFs, from Yuval Mintz.

  12) Introduce BPF PROG ID for better introspection of installed BPF
      programs. From Martin KaFai Lau.

  13) Add bpf_set_hash helper for TC bpf programs, from Daniel Borkmann.

  14) For loads, allow narrower accesses in bpf verifier checking, from
      Yonghong Song.

  15) Support MIPS in the BPF selftests and samples infrastructure, the
      MIPS eBPF JIT will be merged in via the MIPS GIT tree. From David
      Daney.

  16) Support kernel based TLS, from Dave Watson and others.

  17) Remove completely DST garbage collection, from Wei Wang.

  18) Allow installing TCP MD5 rules using prefixes, from Ivan
      Delalande.

  19) Add XDP support to Intel i40e driver, from Björn Töpel

  20) Add support for TC flower offload in nfp driver, from Simon
      Horman, Pieter Jansen van Vuuren, Benjamin LaHaise, Jakub
      Kicinski, and Bert van Leeuwen.

  21) IPSEC offloading support in mlx5, from Ilan Tayari.

  22) Add HW PTP support to macb driver, from Rafal Ozieblo.

  23) Networking refcount_t conversions, From Elena Reshetova.

  24) Add sock_ops support to BPF, from Lawrence Brako. This is useful
      for tuning the TCP sockopt settings of a group of applications,
      currently via CGROUPs"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1899 commits)
  net: phy: dp83867: add workaround for incorrect RX_CTRL pin strap
  dt-bindings: phy: dp83867: provide a workaround for incorrect RX_CTRL pin strap
  cxgb4: Support for get_ts_info ethtool method
  cxgb4: Add PTP Hardware Clock (PHC) support
  cxgb4: time stamping interface for PTP
  nfp: default to chained metadata prepend format
  nfp: remove legacy MAC address lookup
  nfp: improve order of interfaces in breakout mode
  net: macb: remove extraneous return when MACB_EXT_DESC is defined
  bpf: add missing break in for the TCP_BPF_SNDCWND_CLAMP case
  bpf: fix return in load_bpf_file
  mpls: fix rtm policy in mpls_getroute
  net, ax25: convert ax25_cb.refcount from atomic_t to refcount_t
  net, ax25: convert ax25_route.refcount from atomic_t to refcount_t
  net, ax25: convert ax25_uid_assoc.refcount from atomic_t to refcount_t
  net, sctp: convert sctp_ep_common.refcnt from atomic_t to refcount_t
  net, sctp: convert sctp_transport.refcnt from atomic_t to refcount_t
  net, sctp: convert sctp_chunk.refcnt from atomic_t to refcount_t
  net, sctp: convert sctp_datamsg.refcnt from atomic_t to refcount_t
  net, sctp: convert sctp_auth_bytes.refcnt from atomic_t to refcount_t
  ...
2017-07-05 12:31:59 -07:00

802 lines
18 KiB
C

/**
* Marvell Bluetooth driver
*
* Copyright (C) 2009, Marvell International Ltd.
*
* This software file (the "File") is distributed by Marvell International
* Ltd. under the terms of the GNU General Public License Version 2, June 1991
* (the "License"). You may use, redistribute and/or modify this File in
* accordance with the terms and conditions of the License, a copy of which
* is available by writing to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
* worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
*
*
* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
* this warranty disclaimer.
**/
#include <linux/module.h>
#include <linux/of.h>
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
#include <linux/mmc/sdio_func.h>
#include "btmrvl_drv.h"
#include "btmrvl_sdio.h"
#define VERSION "1.0"
/*
* This function is called by interface specific interrupt handler.
* It updates Power Save & Host Sleep states, and wakes up the main
* thread.
*/
void btmrvl_interrupt(struct btmrvl_private *priv)
{
priv->adapter->ps_state = PS_AWAKE;
priv->adapter->wakeup_tries = 0;
priv->adapter->int_count++;
if (priv->adapter->hs_state == HS_ACTIVATED) {
BT_DBG("BT: HS DEACTIVATED in ISR!");
priv->adapter->hs_state = HS_DEACTIVATED;
}
wake_up_interruptible(&priv->main_thread.wait_q);
}
EXPORT_SYMBOL_GPL(btmrvl_interrupt);
bool btmrvl_check_evtpkt(struct btmrvl_private *priv, struct sk_buff *skb)
{
struct hci_event_hdr *hdr = (void *) skb->data;
if (hdr->evt == HCI_EV_CMD_COMPLETE) {
struct hci_ev_cmd_complete *ec;
u16 opcode;
ec = (void *) (skb->data + HCI_EVENT_HDR_SIZE);
opcode = __le16_to_cpu(ec->opcode);
if (priv->btmrvl_dev.sendcmdflag) {
priv->btmrvl_dev.sendcmdflag = false;
priv->adapter->cmd_complete = true;
wake_up_interruptible(&priv->adapter->cmd_wait_q);
if (hci_opcode_ogf(opcode) == 0x3F) {
BT_DBG("vendor event skipped: opcode=%#4.4x",
opcode);
kfree_skb(skb);
return false;
}
}
}
return true;
}
EXPORT_SYMBOL_GPL(btmrvl_check_evtpkt);
int btmrvl_process_event(struct btmrvl_private *priv, struct sk_buff *skb)
{
struct btmrvl_adapter *adapter = priv->adapter;
struct btmrvl_event *event;
int ret = 0;
event = (struct btmrvl_event *) skb->data;
if (event->ec != 0xff) {
BT_DBG("Not Marvell Event=%x", event->ec);
ret = -EINVAL;
goto exit;
}
switch (event->data[0]) {
case BT_EVENT_AUTO_SLEEP_MODE:
if (!event->data[2]) {
if (event->data[1] == BT_PS_ENABLE)
adapter->psmode = 1;
else
adapter->psmode = 0;
BT_DBG("PS Mode:%s",
(adapter->psmode) ? "Enable" : "Disable");
} else {
BT_DBG("PS Mode command failed");
}
break;
case BT_EVENT_HOST_SLEEP_CONFIG:
if (!event->data[3])
BT_DBG("gpio=%x, gap=%x", event->data[1],
event->data[2]);
else
BT_DBG("HSCFG command failed");
break;
case BT_EVENT_HOST_SLEEP_ENABLE:
if (!event->data[1]) {
adapter->hs_state = HS_ACTIVATED;
if (adapter->psmode)
adapter->ps_state = PS_SLEEP;
wake_up_interruptible(&adapter->event_hs_wait_q);
BT_DBG("HS ACTIVATED!");
} else {
BT_DBG("HS Enable failed");
}
break;
case BT_EVENT_MODULE_CFG_REQ:
if (priv->btmrvl_dev.sendcmdflag &&
event->data[1] == MODULE_BRINGUP_REQ) {
BT_DBG("EVENT:%s",
((event->data[2] == MODULE_BROUGHT_UP) ||
(event->data[2] == MODULE_ALREADY_UP)) ?
"Bring-up succeed" : "Bring-up failed");
if (event->length > 3 && event->data[3])
priv->btmrvl_dev.dev_type = HCI_AMP;
else
priv->btmrvl_dev.dev_type = HCI_PRIMARY;
BT_DBG("dev_type: %d", priv->btmrvl_dev.dev_type);
} else if (priv->btmrvl_dev.sendcmdflag &&
event->data[1] == MODULE_SHUTDOWN_REQ) {
BT_DBG("EVENT:%s", (event->data[2]) ?
"Shutdown failed" : "Shutdown succeed");
} else {
BT_DBG("BT_CMD_MODULE_CFG_REQ resp for APP");
ret = -EINVAL;
}
break;
case BT_EVENT_POWER_STATE:
if (event->data[1] == BT_PS_SLEEP)
adapter->ps_state = PS_SLEEP;
BT_DBG("EVENT:%s",
(adapter->ps_state) ? "PS_SLEEP" : "PS_AWAKE");
break;
default:
BT_DBG("Unknown Event=%d", event->data[0]);
ret = -EINVAL;
break;
}
exit:
if (!ret)
kfree_skb(skb);
return ret;
}
EXPORT_SYMBOL_GPL(btmrvl_process_event);
static int btmrvl_send_sync_cmd(struct btmrvl_private *priv, u16 opcode,
const void *param, u8 len)
{
struct sk_buff *skb;
struct hci_command_hdr *hdr;
if (priv->surprise_removed) {
BT_ERR("Card is removed");
return -EFAULT;
}
skb = bt_skb_alloc(HCI_COMMAND_HDR_SIZE + len, GFP_ATOMIC);
if (!skb) {
BT_ERR("No free skb");
return -ENOMEM;
}
hdr = skb_put(skb, HCI_COMMAND_HDR_SIZE);
hdr->opcode = cpu_to_le16(opcode);
hdr->plen = len;
if (len)
skb_put_data(skb, param, len);
hci_skb_pkt_type(skb) = MRVL_VENDOR_PKT;
skb_queue_head(&priv->adapter->tx_queue, skb);
priv->btmrvl_dev.sendcmdflag = true;
priv->adapter->cmd_complete = false;
wake_up_interruptible(&priv->main_thread.wait_q);
if (!wait_event_interruptible_timeout(priv->adapter->cmd_wait_q,
priv->adapter->cmd_complete ||
priv->surprise_removed,
WAIT_UNTIL_CMD_RESP))
return -ETIMEDOUT;
if (priv->surprise_removed)
return -EFAULT;
return 0;
}
int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, u8 subcmd)
{
int ret;
ret = btmrvl_send_sync_cmd(priv, BT_CMD_MODULE_CFG_REQ, &subcmd, 1);
if (ret)
BT_ERR("module_cfg_cmd(%x) failed", subcmd);
return ret;
}
EXPORT_SYMBOL_GPL(btmrvl_send_module_cfg_cmd);
static int btmrvl_enable_sco_routing_to_host(struct btmrvl_private *priv)
{
int ret;
u8 subcmd = 0;
ret = btmrvl_send_sync_cmd(priv, BT_CMD_ROUTE_SCO_TO_HOST, &subcmd, 1);
if (ret)
BT_ERR("BT_CMD_ROUTE_SCO_TO_HOST command failed: %#x", ret);
return ret;
}
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;
u8 param[2];
param[0] = (priv->btmrvl_dev.gpio_gap & 0xff00) >> 8;
param[1] = (u8) (priv->btmrvl_dev.gpio_gap & 0x00ff);
BT_DBG("Sending HSCFG Command, gpio=0x%x, gap=0x%x",
param[0], param[1]);
ret = btmrvl_send_sync_cmd(priv, BT_CMD_HOST_SLEEP_CONFIG, param, 2);
if (ret)
BT_ERR("HSCFG command failed");
return ret;
}
EXPORT_SYMBOL_GPL(btmrvl_send_hscfg_cmd);
int btmrvl_enable_ps(struct btmrvl_private *priv)
{
int ret;
u8 param;
if (priv->btmrvl_dev.psmode)
param = BT_PS_ENABLE;
else
param = BT_PS_DISABLE;
ret = btmrvl_send_sync_cmd(priv, BT_CMD_AUTO_SLEEP_MODE, &param, 1);
if (ret)
BT_ERR("PSMODE command failed");
return 0;
}
EXPORT_SYMBOL_GPL(btmrvl_enable_ps);
int btmrvl_enable_hs(struct btmrvl_private *priv)
{
struct btmrvl_adapter *adapter = priv->adapter;
int ret;
ret = btmrvl_send_sync_cmd(priv, BT_CMD_HOST_SLEEP_ENABLE, NULL, 0);
if (ret) {
BT_ERR("Host sleep enable command failed");
return ret;
}
ret = wait_event_interruptible_timeout(adapter->event_hs_wait_q,
adapter->hs_state ||
priv->surprise_removed,
WAIT_UNTIL_HS_STATE_CHANGED);
if (ret < 0 || priv->surprise_removed) {
BT_ERR("event_hs_wait_q terminated (%d): %d,%d,%d",
ret, adapter->hs_state, adapter->ps_state,
adapter->wakeup_tries);
} else if (!ret) {
BT_ERR("hs_enable timeout: %d,%d,%d", adapter->hs_state,
adapter->ps_state, adapter->wakeup_tries);
ret = -ETIMEDOUT;
} else {
BT_DBG("host sleep enabled: %d,%d,%d", adapter->hs_state,
adapter->ps_state, adapter->wakeup_tries);
ret = 0;
}
return ret;
}
EXPORT_SYMBOL_GPL(btmrvl_enable_hs);
int btmrvl_prepare_command(struct btmrvl_private *priv)
{
int ret = 0;
if (priv->btmrvl_dev.hscfgcmd) {
priv->btmrvl_dev.hscfgcmd = 0;
btmrvl_send_hscfg_cmd(priv);
}
if (priv->btmrvl_dev.pscmd) {
priv->btmrvl_dev.pscmd = 0;
btmrvl_enable_ps(priv);
}
if (priv->btmrvl_dev.hscmd) {
priv->btmrvl_dev.hscmd = 0;
if (priv->btmrvl_dev.hsmode) {
ret = btmrvl_enable_hs(priv);
} else {
ret = priv->hw_wakeup_firmware(priv);
priv->adapter->hs_state = HS_DEACTIVATED;
BT_DBG("BT: HS DEACTIVATED due to host activity!");
}
}
return ret;
}
void btmrvl_firmware_dump(struct btmrvl_private *priv)
{
if (priv->firmware_dump)
priv->firmware_dump(priv);
}
static int btmrvl_tx_pkt(struct btmrvl_private *priv, struct sk_buff *skb)
{
int ret = 0;
if (!skb || !skb->data)
return -EINVAL;
if (!skb->len || ((skb->len + BTM_HEADER_LEN) > BTM_UPLD_SIZE)) {
BT_ERR("Tx Error: Bad skb length %d : %d",
skb->len, BTM_UPLD_SIZE);
return -EINVAL;
}
skb_push(skb, BTM_HEADER_LEN);
/* header type: byte[3]
* HCI_COMMAND = 1, ACL_DATA = 2, SCO_DATA = 3, 0xFE = Vendor
* header length: byte[2][1][0]
*/
skb->data[0] = (skb->len & 0x0000ff);
skb->data[1] = (skb->len & 0x00ff00) >> 8;
skb->data[2] = (skb->len & 0xff0000) >> 16;
skb->data[3] = hci_skb_pkt_type(skb);
if (priv->hw_host_to_card)
ret = priv->hw_host_to_card(priv, skb->data, skb->len);
return ret;
}
static void btmrvl_init_adapter(struct btmrvl_private *priv)
{
int buf_size;
skb_queue_head_init(&priv->adapter->tx_queue);
priv->adapter->ps_state = PS_AWAKE;
buf_size = ALIGN_SZ(SDIO_BLOCK_SIZE, BTSDIO_DMA_ALIGN);
priv->adapter->hw_regs_buf = kzalloc(buf_size, GFP_KERNEL);
if (!priv->adapter->hw_regs_buf) {
priv->adapter->hw_regs = NULL;
BT_ERR("Unable to allocate buffer for hw_regs.");
} else {
priv->adapter->hw_regs =
(u8 *)ALIGN_ADDR(priv->adapter->hw_regs_buf,
BTSDIO_DMA_ALIGN);
BT_DBG("hw_regs_buf=%p hw_regs=%p",
priv->adapter->hw_regs_buf, priv->adapter->hw_regs);
}
init_waitqueue_head(&priv->adapter->cmd_wait_q);
init_waitqueue_head(&priv->adapter->event_hs_wait_q);
}
static void btmrvl_free_adapter(struct btmrvl_private *priv)
{
skb_queue_purge(&priv->adapter->tx_queue);
kfree(priv->adapter->hw_regs_buf);
kfree(priv->adapter);
priv->adapter = NULL;
}
static int btmrvl_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
{
struct btmrvl_private *priv = hci_get_drvdata(hdev);
BT_DBG("type=%d, len=%d", hci_skb_pkt_type(skb), skb->len);
if (priv->adapter->is_suspending || priv->adapter->is_suspended) {
BT_ERR("%s: Device is suspending or suspended", __func__);
return -EBUSY;
}
switch (hci_skb_pkt_type(skb)) {
case HCI_COMMAND_PKT:
hdev->stat.cmd_tx++;
break;
case HCI_ACLDATA_PKT:
hdev->stat.acl_tx++;
break;
case HCI_SCODATA_PKT:
hdev->stat.sco_tx++;
break;
}
skb_queue_tail(&priv->adapter->tx_queue, skb);
if (!priv->adapter->is_suspended)
wake_up_interruptible(&priv->main_thread.wait_q);
return 0;
}
static int btmrvl_flush(struct hci_dev *hdev)
{
struct btmrvl_private *priv = hci_get_drvdata(hdev);
skb_queue_purge(&priv->adapter->tx_queue);
return 0;
}
static int btmrvl_close(struct hci_dev *hdev)
{
struct btmrvl_private *priv = hci_get_drvdata(hdev);
skb_queue_purge(&priv->adapter->tx_queue);
return 0;
}
static int btmrvl_open(struct hci_dev *hdev)
{
return 0;
}
static int btmrvl_download_cal_data(struct btmrvl_private *priv,
u8 *data, int len)
{
int ret;
data[0] = 0x00;
data[1] = 0x00;
data[2] = 0x00;
data[3] = len;
print_hex_dump_bytes("Calibration data: ",
DUMP_PREFIX_OFFSET, data, BT_CAL_HDR_LEN + len);
ret = btmrvl_send_sync_cmd(priv, BT_CMD_LOAD_CONFIG_DATA, data,
BT_CAL_HDR_LEN + len);
if (ret)
BT_ERR("Failed to download calibration data");
return 0;
}
static int btmrvl_check_device_tree(struct btmrvl_private *priv)
{
struct device_node *dt_node;
struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
u8 cal_data[BT_CAL_HDR_LEN + BT_CAL_DATA_SIZE];
int ret = 0;
u16 gpio, gap;
if (card->plt_of_node) {
dt_node = card->plt_of_node;
ret = of_property_read_u16(dt_node, "marvell,wakeup-pin",
&gpio);
if (ret)
gpio = (priv->btmrvl_dev.gpio_gap & 0xff00) >> 8;
ret = of_property_read_u16(dt_node, "marvell,wakeup-gap-ms",
&gap);
if (ret)
gap = (u8)(priv->btmrvl_dev.gpio_gap & 0x00ff);
priv->btmrvl_dev.gpio_gap = (gpio << 8) + gap;
ret = of_property_read_u8_array(dt_node, "marvell,cal-data",
cal_data + BT_CAL_HDR_LEN,
BT_CAL_DATA_SIZE);
if (ret)
return ret;
BT_DBG("Use cal data from device tree");
ret = btmrvl_download_cal_data(priv, cal_data,
BT_CAL_DATA_SIZE);
if (ret)
BT_ERR("Fail to download calibrate data");
}
return ret;
}
static int btmrvl_setup(struct hci_dev *hdev)
{
struct btmrvl_private *priv = hci_get_drvdata(hdev);
int ret;
ret = btmrvl_send_module_cfg_cmd(priv, MODULE_BRINGUP_REQ);
if (ret)
return ret;
priv->btmrvl_dev.gpio_gap = 0xfffe;
btmrvl_check_device_tree(priv);
btmrvl_enable_sco_routing_to_host(priv);
btmrvl_pscan_window_reporting(priv, 0x01);
priv->btmrvl_dev.psmode = 1;
btmrvl_enable_ps(priv);
btmrvl_send_hscfg_cmd(priv);
return 0;
}
static int btmrvl_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr)
{
struct sk_buff *skb;
long ret;
u8 buf[8];
buf[0] = MRVL_VENDOR_PKT;
buf[1] = sizeof(bdaddr_t);
memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
skb = __hci_cmd_sync(hdev, BT_CMD_SET_BDADDR, sizeof(buf), buf,
HCI_INIT_TIMEOUT);
if (IS_ERR(skb)) {
ret = PTR_ERR(skb);
BT_ERR("%s: changing btmrvl device address failed (%ld)",
hdev->name, ret);
return ret;
}
kfree_skb(skb);
return 0;
}
/*
* This function handles the event generated by firmware, rx data
* received from firmware, and tx data sent from kernel.
*/
static int btmrvl_service_main_thread(void *data)
{
struct btmrvl_thread *thread = data;
struct btmrvl_private *priv = thread->priv;
struct btmrvl_adapter *adapter = priv->adapter;
wait_queue_entry_t wait;
struct sk_buff *skb;
ulong flags;
init_waitqueue_entry(&wait, current);
for (;;) {
add_wait_queue(&thread->wait_q, &wait);
set_current_state(TASK_INTERRUPTIBLE);
if (kthread_should_stop() || priv->surprise_removed) {
BT_DBG("main_thread: break from main thread");
break;
}
if (adapter->wakeup_tries ||
((!adapter->int_count) &&
(!priv->btmrvl_dev.tx_dnld_rdy ||
skb_queue_empty(&adapter->tx_queue)))) {
BT_DBG("main_thread is sleeping...");
schedule();
}
set_current_state(TASK_RUNNING);
remove_wait_queue(&thread->wait_q, &wait);
BT_DBG("main_thread woke up");
if (kthread_should_stop() || priv->surprise_removed) {
BT_DBG("main_thread: break from main thread");
break;
}
spin_lock_irqsave(&priv->driver_lock, flags);
if (adapter->int_count) {
adapter->int_count = 0;
spin_unlock_irqrestore(&priv->driver_lock, flags);
priv->hw_process_int_status(priv);
} else if (adapter->ps_state == PS_SLEEP &&
!skb_queue_empty(&adapter->tx_queue)) {
spin_unlock_irqrestore(&priv->driver_lock, flags);
adapter->wakeup_tries++;
priv->hw_wakeup_firmware(priv);
continue;
} else {
spin_unlock_irqrestore(&priv->driver_lock, flags);
}
if (adapter->ps_state == PS_SLEEP)
continue;
if (!priv->btmrvl_dev.tx_dnld_rdy ||
priv->adapter->is_suspended)
continue;
skb = skb_dequeue(&adapter->tx_queue);
if (skb) {
if (btmrvl_tx_pkt(priv, skb))
priv->btmrvl_dev.hcidev->stat.err_tx++;
else
priv->btmrvl_dev.hcidev->stat.byte_tx += skb->len;
kfree_skb(skb);
}
}
return 0;
}
int btmrvl_register_hdev(struct btmrvl_private *priv)
{
struct hci_dev *hdev = NULL;
int ret;
hdev = hci_alloc_dev();
if (!hdev) {
BT_ERR("Can not allocate HCI device");
goto err_hdev;
}
priv->btmrvl_dev.hcidev = hdev;
hci_set_drvdata(hdev, priv);
hdev->bus = HCI_SDIO;
hdev->open = btmrvl_open;
hdev->close = btmrvl_close;
hdev->flush = btmrvl_flush;
hdev->send = btmrvl_send_frame;
hdev->setup = btmrvl_setup;
hdev->set_bdaddr = btmrvl_set_bdaddr;
hdev->dev_type = priv->btmrvl_dev.dev_type;
ret = hci_register_dev(hdev);
if (ret < 0) {
BT_ERR("Can not register HCI device");
goto err_hci_register_dev;
}
#ifdef CONFIG_DEBUG_FS
btmrvl_debugfs_init(hdev);
#endif
return 0;
err_hci_register_dev:
hci_free_dev(hdev);
err_hdev:
/* Stop the thread servicing the interrupts */
kthread_stop(priv->main_thread.task);
btmrvl_free_adapter(priv);
kfree(priv);
return -ENOMEM;
}
EXPORT_SYMBOL_GPL(btmrvl_register_hdev);
struct btmrvl_private *btmrvl_add_card(void *card)
{
struct btmrvl_private *priv;
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
if (!priv) {
BT_ERR("Can not allocate priv");
goto err_priv;
}
priv->adapter = kzalloc(sizeof(*priv->adapter), GFP_KERNEL);
if (!priv->adapter) {
BT_ERR("Allocate buffer for btmrvl_adapter failed!");
goto err_adapter;
}
btmrvl_init_adapter(priv);
BT_DBG("Starting kthread...");
priv->main_thread.priv = priv;
spin_lock_init(&priv->driver_lock);
init_waitqueue_head(&priv->main_thread.wait_q);
priv->main_thread.task = kthread_run(btmrvl_service_main_thread,
&priv->main_thread, "btmrvl_main_service");
if (IS_ERR(priv->main_thread.task))
goto err_thread;
priv->btmrvl_dev.card = card;
priv->btmrvl_dev.tx_dnld_rdy = true;
return priv;
err_thread:
btmrvl_free_adapter(priv);
err_adapter:
kfree(priv);
err_priv:
return NULL;
}
EXPORT_SYMBOL_GPL(btmrvl_add_card);
int btmrvl_remove_card(struct btmrvl_private *priv)
{
struct hci_dev *hdev;
hdev = priv->btmrvl_dev.hcidev;
wake_up_interruptible(&priv->adapter->cmd_wait_q);
wake_up_interruptible(&priv->adapter->event_hs_wait_q);
kthread_stop(priv->main_thread.task);
#ifdef CONFIG_DEBUG_FS
btmrvl_debugfs_remove(hdev);
#endif
hci_unregister_dev(hdev);
hci_free_dev(hdev);
priv->btmrvl_dev.hcidev = NULL;
btmrvl_free_adapter(priv);
kfree(priv);
return 0;
}
EXPORT_SYMBOL_GPL(btmrvl_remove_card);
MODULE_AUTHOR("Marvell International Ltd.");
MODULE_DESCRIPTION("Marvell Bluetooth driver ver " VERSION);
MODULE_VERSION(VERSION);
MODULE_LICENSE("GPL v2");