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-rw-r--r--Documentation/00-INDEX2
-rw-r--r--Documentation/btmrvl.txt119
-rw-r--r--drivers/bluetooth/Kconfig25
-rw-r--r--drivers/bluetooth/Makefile6
-rw-r--r--drivers/bluetooth/btmrvl_debugfs.c432
-rw-r--r--drivers/bluetooth/btmrvl_drv.h139
-rw-r--r--drivers/bluetooth/btmrvl_main.c624
-rw-r--r--drivers/bluetooth/btmrvl_sdio.c1003
-rw-r--r--drivers/bluetooth/btmrvl_sdio.h108
-rw-r--r--drivers/bluetooth/btusb.c198
-rw-r--r--drivers/bluetooth/hci_bcsp.c3
-rw-r--r--include/net/bluetooth/bluetooth.h5
-rw-r--r--include/net/bluetooth/hci_core.h10
-rw-r--r--include/net/bluetooth/l2cap.h134
-rw-r--r--include/net/bluetooth/rfcomm.h2
-rw-r--r--net/bluetooth/Kconfig1
-rw-r--r--net/bluetooth/hci_conn.c17
-rw-r--r--net/bluetooth/hci_core.c2
-rw-r--r--net/bluetooth/hci_event.c2
-rw-r--r--net/bluetooth/hidp/core.c66
-rw-r--r--net/bluetooth/hidp/hidp.h2
-rw-r--r--net/bluetooth/l2cap.c1357
-rw-r--r--net/bluetooth/rfcomm/core.c69
-rw-r--r--net/bluetooth/sco.c49
24 files changed, 4186 insertions, 189 deletions
diff --git a/Documentation/00-INDEX b/Documentation/00-INDEX
index d05737aaa84..06b982affe7 100644
--- a/Documentation/00-INDEX
+++ b/Documentation/00-INDEX
@@ -82,6 +82,8 @@ block/
- info on the Block I/O (BIO) layer.
blockdev/
- info on block devices & drivers
+btmrvl.txt
+ - info on Marvell Bluetooth driver usage.
cachetlb.txt
- describes the cache/TLB flushing interfaces Linux uses.
cdrom/
diff --git a/Documentation/btmrvl.txt b/Documentation/btmrvl.txt
new file mode 100644
index 00000000000..34916a46c09
--- /dev/null
+++ b/Documentation/btmrvl.txt
@@ -0,0 +1,119 @@
+=======================================================================
+ README for btmrvl driver
+=======================================================================
+
+
+All commands are used via debugfs interface.
+
+=====================
+Set/get driver configurations:
+
+Path: /debug/btmrvl/config/
+
+gpiogap=[n]
+hscfgcmd
+ These commands are used to configure the host sleep parameters.
+ bit 8:0 -- Gap
+ bit 16:8 -- GPIO
+
+ where GPIO is the pin number of GPIO used to wake up the host.
+ It could be any valid GPIO pin# (e.g. 0-7) or 0xff (SDIO interface
+ wakeup will be used instead).
+
+ where Gap is the gap in milli seconds between wakeup signal and
+ wakeup event, or 0xff for special host sleep setting.
+
+ Usage:
+ # Use SDIO interface to wake up the host and set GAP to 0x80:
+ echo 0xff80 > /debug/btmrvl/config/gpiogap
+ echo 1 > /debug/btmrvl/config/hscfgcmd
+
+ # Use GPIO pin #3 to wake up the host and set GAP to 0xff:
+ echo 0x03ff > /debug/btmrvl/config/gpiogap
+ echo 1 > /debug/btmrvl/config/hscfgcmd
+
+psmode=[n]
+pscmd
+ These commands are used to enable/disable auto sleep mode
+
+ where the option is:
+ 1 -- Enable auto sleep mode
+ 0 -- Disable auto sleep mode
+
+ Usage:
+ # Enable auto sleep mode
+ echo 1 > /debug/btmrvl/config/psmode
+ echo 1 > /debug/btmrvl/config/pscmd
+
+ # Disable auto sleep mode
+ echo 0 > /debug/btmrvl/config/psmode
+ echo 1 > /debug/btmrvl/config/pscmd
+
+
+hsmode=[n]
+hscmd
+ These commands are used to enable host sleep or wake up firmware
+
+ where the option is:
+ 1 -- Enable host sleep
+ 0 -- Wake up firmware
+
+ Usage:
+ # Enable host sleep
+ echo 1 > /debug/btmrvl/config/hsmode
+ echo 1 > /debug/btmrvl/config/hscmd
+
+ # Wake up firmware
+ echo 0 > /debug/btmrvl/config/hsmode
+ echo 1 > /debug/btmrvl/config/hscmd
+
+
+======================
+Get driver status:
+
+Path: /debug/btmrvl/status/
+
+Usage:
+ cat /debug/btmrvl/status/<args>
+
+where the args are:
+
+curpsmode
+ This command displays current auto sleep status.
+
+psstate
+ This command display the power save state.
+
+hsstate
+ This command display the host sleep state.
+
+txdnldrdy
+ This command displays the value of Tx download ready flag.
+
+
+=====================
+
+Use hcitool to issue raw hci command, refer to hcitool manual
+
+ Usage: Hcitool cmd <ogf> <ocf> [Parameters]
+
+ Interface Control Command
+ hcitool cmd 0x3f 0x5b 0xf5 0x01 0x00 --Enable All interface
+ hcitool cmd 0x3f 0x5b 0xf5 0x01 0x01 --Enable Wlan interface
+ hcitool cmd 0x3f 0x5b 0xf5 0x01 0x02 --Enable BT interface
+ hcitool cmd 0x3f 0x5b 0xf5 0x00 0x00 --Disable All interface
+ hcitool cmd 0x3f 0x5b 0xf5 0x00 0x01 --Disable Wlan interface
+ hcitool cmd 0x3f 0x5b 0xf5 0x00 0x02 --Disable BT interface
+
+=======================================================================
+
+
+SD8688 firmware:
+
+/lib/firmware/sd8688_helper.bin
+/lib/firmware/sd8688.bin
+
+
+The images can be downloaded from:
+
+git.infradead.org/users/dwmw2/linux-firmware.git/libertas/
diff --git a/drivers/bluetooth/Kconfig b/drivers/bluetooth/Kconfig
index 1164837bb78..652367aa654 100644
--- a/drivers/bluetooth/Kconfig
+++ b/drivers/bluetooth/Kconfig
@@ -170,5 +170,30 @@ config BT_HCIVHCI
Say Y here to compile support for virtual HCI devices into the
kernel or say M to compile it as module (hci_vhci).
+config BT_MRVL
+ tristate "Marvell Bluetooth driver support"
+ help
+ The core driver to support Marvell Bluetooth devices.
+
+ This driver is required if you want to support
+ Marvell Bluetooth devices, such as 8688.
+
+ Say Y here to compile Marvell Bluetooth driver
+ into the kernel or say M to compile it as module.
+
+config BT_MRVL_SDIO
+ tristate "Marvell BT-over-SDIO driver"
+ depends on BT_MRVL && MMC
+ select FW_LOADER
+ help
+ The driver for Marvell Bluetooth chipsets with SDIO interface.
+
+ This driver is required if you want to use Marvell Bluetooth
+ devices with SDIO interface. Currently only SD8688 chipset is
+ supported.
+
+ Say Y here to compile support for Marvell BT-over-SDIO driver
+ into the kernel or say M to compile it as module.
+
endmenu
diff --git a/drivers/bluetooth/Makefile b/drivers/bluetooth/Makefile
index 16930f93d1c..b3f57d2d4eb 100644
--- a/drivers/bluetooth/Makefile
+++ b/drivers/bluetooth/Makefile
@@ -15,6 +15,12 @@ obj-$(CONFIG_BT_HCIBTUART) += btuart_cs.o
obj-$(CONFIG_BT_HCIBTUSB) += btusb.o
obj-$(CONFIG_BT_HCIBTSDIO) += btsdio.o
+obj-$(CONFIG_BT_MRVL) += btmrvl.o
+obj-$(CONFIG_BT_MRVL_SDIO) += btmrvl_sdio.o
+
+btmrvl-y := btmrvl_main.o
+btmrvl-$(CONFIG_DEBUG_FS) += btmrvl_debugfs.o
+
hci_uart-y := hci_ldisc.o
hci_uart-$(CONFIG_BT_HCIUART_H4) += hci_h4.o
hci_uart-$(CONFIG_BT_HCIUART_BCSP) += hci_bcsp.o
diff --git a/drivers/bluetooth/btmrvl_debugfs.c b/drivers/bluetooth/btmrvl_debugfs.c
new file mode 100644
index 00000000000..4617bd12f63
--- /dev/null
+++ b/drivers/bluetooth/btmrvl_debugfs.c
@@ -0,0 +1,432 @@
+/**
+ * Marvell Bluetooth driver: debugfs related functions
+ *
+ * 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/debugfs.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+
+#include "btmrvl_drv.h"
+
+struct btmrvl_debugfs_data {
+ struct dentry *root_dir, *config_dir, *status_dir;
+
+ /* config */
+ struct dentry *drvdbg;
+ struct dentry *psmode;
+ struct dentry *pscmd;
+ struct dentry *hsmode;
+ struct dentry *hscmd;
+ struct dentry *gpiogap;
+ struct dentry *hscfgcmd;
+
+ /* status */
+ struct dentry *curpsmode;
+ struct dentry *hsstate;
+ struct dentry *psstate;
+ struct dentry *txdnldready;
+};
+
+static int btmrvl_open_generic(struct inode *inode, struct file *file)
+{
+ file->private_data = inode->i_private;
+ return 0;
+}
+
+static ssize_t btmrvl_hscfgcmd_write(struct file *file,
+ const char __user *ubuf, size_t count, loff_t *ppos)
+{
+ struct btmrvl_private *priv = file->private_data;
+ char buf[16];
+ long result, ret;
+
+ memset(buf, 0, sizeof(buf));
+
+ if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
+ return -EFAULT;
+
+ ret = strict_strtol(buf, 10, &result);
+
+ priv->btmrvl_dev.hscfgcmd = result;
+
+ if (priv->btmrvl_dev.hscfgcmd) {
+ btmrvl_prepare_command(priv);
+ wake_up_interruptible(&priv->main_thread.wait_q);
+ }
+
+ return count;
+}
+
+static ssize_t btmrvl_hscfgcmd_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct btmrvl_private *priv = file->private_data;
+ char buf[16];
+ int ret;
+
+ ret = snprintf(buf, sizeof(buf) - 1, "%d\n",
+ priv->btmrvl_dev.hscfgcmd);
+
+ return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
+}
+
+static const struct file_operations btmrvl_hscfgcmd_fops = {
+ .read = btmrvl_hscfgcmd_read,
+ .write = btmrvl_hscfgcmd_write,
+ .open = btmrvl_open_generic,
+};
+
+static ssize_t btmrvl_psmode_write(struct file *file, const char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ struct btmrvl_private *priv = file->private_data;
+ char buf[16];
+ long result, ret;
+
+ memset(buf, 0, sizeof(buf));
+
+ if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
+ return -EFAULT;
+
+ ret = strict_strtol(buf, 10, &result);
+
+ priv->btmrvl_dev.psmode = result;
+
+ return count;
+}
+
+static ssize_t btmrvl_psmode_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct btmrvl_private *priv = file->private_data;
+ char buf[16];
+ int ret;
+
+ ret = snprintf(buf, sizeof(buf) - 1, "%d\n",
+ priv->btmrvl_dev.psmode);
+
+ return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
+}
+
+static const struct file_operations btmrvl_psmode_fops = {
+ .read = btmrvl_psmode_read,
+ .write = btmrvl_psmode_write,
+ .open = btmrvl_open_generic,
+};
+
+static ssize_t btmrvl_pscmd_write(struct file *file, const char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ struct btmrvl_private *priv = file->private_data;
+ char buf[16];
+ long result, ret;
+
+ memset(buf, 0, sizeof(buf));
+
+ if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
+ return -EFAULT;
+
+ ret = strict_strtol(buf, 10, &result);
+
+ priv->btmrvl_dev.pscmd = result;
+
+ if (priv->btmrvl_dev.pscmd) {
+ btmrvl_prepare_command(priv);
+ wake_up_interruptible(&priv->main_thread.wait_q);
+ }
+
+ return count;
+
+}
+
+static ssize_t btmrvl_pscmd_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct btmrvl_private *priv = file->private_data;
+ char buf[16];
+ int ret;
+
+ ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->btmrvl_dev.pscmd);
+
+ return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
+}
+
+static const struct file_operations btmrvl_pscmd_fops = {
+ .read = btmrvl_pscmd_read,
+ .write = btmrvl_pscmd_write,
+ .open = btmrvl_open_generic,
+};
+
+static ssize_t btmrvl_gpiogap_write(struct file *file, const char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ struct btmrvl_private *priv = file->private_data;
+ char buf[16];
+ long result, ret;
+
+ memset(buf, 0, sizeof(buf));
+
+ if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
+ return -EFAULT;
+
+ ret = strict_strtol(buf, 16, &result);
+
+ priv->btmrvl_dev.gpio_gap = result;
+
+ return count;
+}
+
+static ssize_t btmrvl_gpiogap_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct btmrvl_private *priv = file->private_data;
+ char buf[16];
+ int ret;
+
+ ret = snprintf(buf, sizeof(buf) - 1, "0x%x\n",
+ priv->btmrvl_dev.gpio_gap);
+
+ return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
+}
+
+static const struct file_operations btmrvl_gpiogap_fops = {
+ .read = btmrvl_gpiogap_read,
+ .write = btmrvl_gpiogap_write,
+ .open = btmrvl_open_generic,
+};
+
+static ssize_t btmrvl_hscmd_write(struct file *file, const char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ struct btmrvl_private *priv = (struct btmrvl_private *) file->private_data;
+ char buf[16];
+ long result, ret;
+
+ memset(buf, 0, sizeof(buf));
+
+ if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
+ return -EFAULT;
+
+ ret = strict_strtol(buf, 10, &result);
+
+ priv->btmrvl_dev.hscmd = result;
+ if (priv->btmrvl_dev.hscmd) {
+ btmrvl_prepare_command(priv);
+ wake_up_interruptible(&priv->main_thread.wait_q);
+ }
+
+ return count;
+}
+
+static ssize_t btmrvl_hscmd_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct btmrvl_private *priv = file->private_data;
+ char buf[16];
+ int ret;
+
+ ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->btmrvl_dev.hscmd);
+
+ return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
+}
+
+static const struct file_operations btmrvl_hscmd_fops = {
+ .read = btmrvl_hscmd_read,
+ .write = btmrvl_hscmd_write,
+ .open = btmrvl_open_generic,
+};
+
+static ssize_t btmrvl_hsmode_write(struct file *file, const char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ struct btmrvl_private *priv = file->private_data;
+ char buf[16];
+ long result, ret;
+
+ memset(buf, 0, sizeof(buf));
+
+ if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
+ return -EFAULT;
+
+ ret = strict_strtol(buf, 10, &result);
+
+ priv->btmrvl_dev.hsmode = result;
+
+ return count;
+}
+
+static ssize_t btmrvl_hsmode_read(struct file *file, char __user * userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct btmrvl_private *priv = file->private_data;
+ char buf[16];
+ int ret;
+
+ ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->btmrvl_dev.hsmode);
+
+ return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
+}
+
+static const struct file_operations btmrvl_hsmode_fops = {
+ .read = btmrvl_hsmode_read,
+ .write = btmrvl_hsmode_write,
+ .open = btmrvl_open_generic,
+};
+
+static ssize_t btmrvl_curpsmode_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct btmrvl_private *priv = file->private_data;
+ char buf[16];
+ int ret;
+
+ ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->adapter->psmode);
+
+ return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
+}
+
+static const struct file_operations btmrvl_curpsmode_fops = {
+ .read = btmrvl_curpsmode_read,
+ .open = btmrvl_open_generic,
+};
+
+static ssize_t btmrvl_psstate_read(struct file *file, char __user * userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct btmrvl_private *priv = file->private_data;
+ char buf[16];
+ int ret;
+
+ ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->adapter->ps_state);
+
+ return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
+}
+
+static const struct file_operations btmrvl_psstate_fops = {
+ .read = btmrvl_psstate_read,
+ .open = btmrvl_open_generic,
+};
+
+static ssize_t btmrvl_hsstate_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct btmrvl_private *priv = file->private_data;
+ char buf[16];
+ int ret;
+
+ ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->adapter->hs_state);
+
+ return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
+}
+
+static const struct file_operations btmrvl_hsstate_fops = {
+ .read = btmrvl_hsstate_read,
+ .open = btmrvl_open_generic,
+};
+
+static ssize_t btmrvl_txdnldready_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct btmrvl_private *priv = file->private_data;
+ char buf[16];
+ int ret;
+
+ ret = snprintf(buf, sizeof(buf) - 1, "%d\n",
+ priv->btmrvl_dev.tx_dnld_rdy);
+
+ return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
+}
+
+static const struct file_operations btmrvl_txdnldready_fops = {
+ .read = btmrvl_txdnldready_read,
+ .open = btmrvl_open_generic,
+};
+
+void btmrvl_debugfs_init(struct hci_dev *hdev)
+{
+ struct btmrvl_private *priv = hdev->driver_data;
+ struct btmrvl_debugfs_data *dbg;
+
+ dbg = kzalloc(sizeof(*dbg), GFP_KERNEL);
+ priv->debugfs_data = dbg;
+
+ if (!dbg) {
+ BT_ERR("Can not allocate memory for btmrvl_debugfs_data.");
+ return;
+ }
+
+ dbg->root_dir = debugfs_create_dir("btmrvl", NULL);
+
+ dbg->config_dir = debugfs_create_dir("config", dbg->root_dir);
+
+ dbg->psmode = debugfs_create_file("psmode", 0644, dbg->config_dir,
+ hdev->driver_data, &btmrvl_psmode_fops);
+ dbg->pscmd = debugfs_create_file("pscmd", 0644, dbg->config_dir,
+ hdev->driver_data, &btmrvl_pscmd_fops);
+ dbg->gpiogap = debugfs_create_file("gpiogap", 0644, dbg->config_dir,
+ hdev->driver_data, &btmrvl_gpiogap_fops);
+ dbg->hsmode = debugfs_create_file("hsmode", 0644, dbg->config_dir,
+ hdev->driver_data, &btmrvl_hsmode_fops);
+ dbg->hscmd = debugfs_create_file("hscmd", 0644, dbg->config_dir,
+ hdev->driver_data, &btmrvl_hscmd_fops);
+ dbg->hscfgcmd = debugfs_create_file("hscfgcmd", 0644, dbg->config_dir,
+ hdev->driver_data, &btmrvl_hscfgcmd_fops);
+
+ dbg->status_dir = debugfs_create_dir("status", dbg->root_dir);
+ dbg->curpsmode = debugfs_create_file("curpsmode", 0444,
+ dbg->status_dir,
+ hdev->driver_data,
+ &btmrvl_curpsmode_fops);
+ dbg->psstate = debugfs_create_file("psstate", 0444, dbg->status_dir,
+ hdev->driver_data, &btmrvl_psstate_fops);
+ dbg->hsstate = debugfs_create_file("hsstate", 0444, dbg->status_dir,
+ hdev->driver_data, &btmrvl_hsstate_fops);
+ dbg->txdnldready = debugfs_create_file("txdnldready", 0444,
+ dbg->status_dir,
+ hdev->driver_data,
+ &btmrvl_txdnldready_fops);
+}
+
+void btmrvl_debugfs_remove(struct hci_dev *hdev)
+{
+ struct btmrvl_private *priv = hdev->driver_data;
+ struct btmrvl_debugfs_data *dbg = priv->debugfs_data;
+
+ if (!dbg)
+ return;
+
+ debugfs_remove(dbg->psmode);
+ debugfs_remove(dbg->pscmd);
+ debugfs_remove(dbg->gpiogap);
+ debugfs_remove(dbg->hsmode);
+ debugfs_remove(dbg->hscmd);
+ debugfs_remove(dbg->hscfgcmd);
+ debugfs_remove(dbg->config_dir);
+
+ debugfs_remove(dbg->curpsmode);
+ debugfs_remove(dbg->psstate);
+ debugfs_remove(dbg->hsstate);
+ debugfs_remove(dbg->txdnldready);
+ debugfs_remove(dbg->status_dir);
+
+ debugfs_remove(dbg->root_dir);
+
+ kfree(dbg);
+}
diff --git a/drivers/bluetooth/btmrvl_drv.h b/drivers/bluetooth/btmrvl_drv.h
new file mode 100644
index 00000000000..411c7a77082
--- /dev/null
+++ b/drivers/bluetooth/btmrvl_drv.h
@@ -0,0 +1,139 @@
+/*
+ * Marvell Bluetooth driver: global definitions & declarations
+ *
+ * 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/kthread.h>
+#include <linux/bitops.h>
+#include <net/bluetooth/bluetooth.h>
+
+#define BTM_HEADER_LEN 4
+#define BTM_UPLD_SIZE 2312
+
+/* Time to wait until Host Sleep state change in millisecond */
+#define WAIT_UNTIL_HS_STATE_CHANGED 5000
+/* Time to wait for command response in millisecond */
+#define WAIT_UNTIL_CMD_RESP 5000
+
+struct btmrvl_thread {
+ struct task_struct *task;
+ wait_queue_head_t wait_q;
+ void *priv;
+};
+
+struct btmrvl_device {
+ void *card;
+ struct hci_dev *hcidev;
+
+ u8 tx_dnld_rdy;
+
+ u8 psmode;
+ u8 pscmd;
+ u8 hsmode;
+ u8 hscmd;
+
+ /* Low byte is gap, high byte is GPIO */
+ u16 gpio_gap;
+
+ u8 hscfgcmd;
+ u8 sendcmdflag;
+};
+
+struct btmrvl_adapter {
+ u32 int_count;
+ struct sk_buff_head tx_queue;
+ u8 psmode;
+ u8 ps_state;
+ u8 hs_state;
+ u8 wakeup_tries;
+ wait_queue_head_t cmd_wait_q;
+ u8 cmd_complete;
+};
+
+struct btmrvl_private {
+ struct btmrvl_device btmrvl_dev;
+ struct btmrvl_adapter *adapter;
+ struct btmrvl_thread main_thread;
+ int (*hw_host_to_card) (struct btmrvl_private *priv,
+ u8 *payload, u16 nb);
+ int (*hw_wakeup_firmware) (struct btmrvl_private *priv);
+ spinlock_t driver_lock; /* spinlock used by driver */
+#ifdef CONFIG_DEBUG_FS
+ void *debugfs_data;
+#endif
+};
+
+#define MRVL_VENDOR_PKT 0xFE
+
+/* Bluetooth commands */
+#define BT_CMD_AUTO_SLEEP_MODE 0x23
+#define BT_CMD_HOST_SLEEP_CONFIG 0x59
+#define BT_CMD_HOST_SLEEP_ENABLE 0x5A
+#define BT_CMD_MODULE_CFG_REQ 0x5B
+
+/* Sub-commands: Module Bringup/Shutdown Request */
+#define MODULE_BRINGUP_REQ 0xF1
+#define MODULE_SHUTDOWN_REQ 0xF2
+
+#define BT_EVENT_POWER_STATE 0x20
+
+/* Bluetooth Power States */
+#define BT_PS_ENABLE 0x02
+#define BT_PS_DISABLE 0x03
+#define BT_PS_SLEEP 0x01
+
+#define OGF 0x3F
+
+/* Host Sleep states */
+#define HS_ACTIVATED 0x01
+#define HS_DEACTIVATED 0x00
+
+/* Power Save modes */
+#define PS_SLEEP 0x01
+#define PS_AWAKE 0x00
+
+struct btmrvl_cmd {
+ __le16 ocf_ogf;
+ u8 length;
+ u8 data[4];
+} __attribute__ ((packed));
+
+struct btmrvl_event {
+ u8 ec; /* event counter */
+ u8 length;
+ u8 data[4];
+} __attribute__ ((packed));
+
+/* Prototype of global function */
+
+struct btmrvl_private *btmrvl_add_card(void *card);
+int btmrvl_remove_card(struct btmrvl_private *priv);
+
+void btmrvl_interrupt(struct btmrvl_private *priv);
+
+void btmrvl_check_evtpkt(struct btmrvl_private *priv, struct sk_buff *skb);
+int btmrvl_process_event(struct btmrvl_private *priv, struct sk_buff *skb);
+
+int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, int subcmd);
+int btmrvl_prepare_command(struct btmrvl_private *priv);
+
+#ifdef CONFIG_DEBUG_FS
+void btmrvl_debugfs_init(struct hci_dev *hdev);
+void btmrvl_debugfs_remove(struct hci_dev *hdev);
+#endif
diff --git a/drivers/bluetooth/btmrvl_main.c b/drivers/bluetooth/btmrvl_main.c
new file mode 100644
index 00000000000..e605563b4ea
--- /dev/null
+++ b/drivers/bluetooth/btmrvl_main.c
@@ -0,0 +1,624 @@
+/**
+ * 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 <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+
+#include "btmrvl_drv.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++;
+
+ wake_up_interruptible(&priv->main_thread.wait_q);
+}
+EXPORT_SYMBOL_GPL(btmrvl_interrupt);
+
+void btmrvl_check_evtpkt(struct btmrvl_private *priv, struct sk_buff *skb)
+{
+ struct hci_event_hdr *hdr = (void *) skb->data;
+ struct hci_ev_cmd_complete *ec;
+ u16 opcode, ocf;
+
+ if (hdr->evt == HCI_EV_CMD_COMPLETE) {
+ ec = (void *) (skb->data + HCI_EVENT_HDR_SIZE);
+ opcode = __le16_to_cpu(ec->opcode);
+ ocf = hci_opcode_ocf(opcode);
+ if (ocf == BT_CMD_MODULE_CFG_REQ &&
+ priv->btmrvl_dev.sendcmdflag) {
+ priv->btmrvl_dev.sendcmdflag = false;
+ priv->adapter->cmd_complete = true;
+ wake_up_interruptible(&priv->adapter->cmd_wait_q);
+ }
+ }
+}
+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;
+ u8 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_CMD_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_CMD_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_CMD_HOST_SLEEP_ENABLE:
+ if (!event->data[1]) {
+ adapter->hs_state = HS_ACTIVATED;
+ if (adapter->psmode)
+ adapter->ps_state = PS_SLEEP;
+ wake_up_interruptible(&adapter->cmd_wait_q);
+ BT_DBG("HS ACTIVATED!");
+ } else {
+ BT_DBG("HS Enable failed");
+ }
+ break;
+
+ case BT_CMD_MODULE_CFG_REQ:
+ if (priv->btmrvl_dev.sendcmdflag &&
+ event->data[1] == MODULE_BRINGUP_REQ) {
+ BT_DBG("EVENT:%s", (event->data[2]) ?
+ "Bring-up failed" : "Bring-up succeed");
+ } 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);
+
+int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, int subcmd)
+{
+ struct sk_buff *skb;
+ struct btmrvl_cmd *cmd;
+ int ret = 0;
+
+ skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC);
+ if (skb == NULL) {
+ BT_ERR("No free skb");
+ return -ENOMEM;
+ }
+
+ cmd = (struct btmrvl_cmd *) skb_put(skb, sizeof(*cmd));
+ cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF, BT_CMD_MODULE_CFG_REQ));
+ cmd->length = 1;
+ cmd->data[0] = subcmd;
+
+ bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT;
+
+ skb->dev = (void *) priv->btmrvl_dev.hcidev;
+ skb_queue_head(&priv->adapter->tx_queue, skb);
+
+ priv->btmrvl_dev.sendcmdflag = true;
+
+ priv->adapter->cmd_complete = false;
+
+ BT_DBG("Queue module cfg Command");
+
+ wake_up_interruptible(&priv->main_thread.wait_q);
+
+ if (!wait_event_interruptible_timeout(priv->adapter->cmd_wait_q,
+ priv->adapter->cmd_complete,
+ msecs_to_jiffies(WAIT_UNTIL_CMD_RESP))) {
+ ret = -ETIMEDOUT;
+ BT_ERR("module_cfg_cmd(%x): timeout: %d",
+ subcmd, priv->btmrvl_dev.sendcmdflag);
+ }
+
+ BT_DBG("module cfg Command done");
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(btmrvl_send_module_cfg_cmd);
+
+static int btmrvl_enable_hs(struct btmrvl_private *priv)
+{
+ struct sk_buff *skb;
+ struct btmrvl_cmd *cmd;
+ int ret = 0;
+
+ skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC);
+ if (skb == NULL) {
+ BT_ERR("No free skb");
+ return -ENOMEM;
+ }
+
+ cmd = (struct btmrvl_cmd *) skb_put(skb, sizeof(*cmd));
+ cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF, BT_CMD_HOST_SLEEP_ENABLE));
+ cmd->length = 0;
+
+ bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT;
+
+ skb->dev = (void *) priv->btmrvl_dev.hcidev;
+ skb_queue_head(&priv->adapter->tx_queue, skb);
+
+ BT_DBG("Queue hs enable Command");
+
+ wake_up_interruptible(&priv->main_thread.wait_q);
+
+ if (!wait_event_interruptible_timeout(priv->adapter->cmd_wait_q,
+ priv->adapter->hs_state,
+ msecs_to_jiffies(WAIT_UNTIL_HS_STATE_CHANGED))) {
+ ret = -ETIMEDOUT;
+ BT_ERR("timeout: %d, %d,%d", priv->adapter->hs_state,
+ priv->adapter->ps_state,
+ priv->adapter->wakeup_tries);
+ }
+
+ return ret;
+}
+
+int btmrvl_prepare_command(struct btmrvl_private *priv)
+{
+ struct sk_buff *skb = NULL;
+ struct btmrvl_cmd *cmd;
+ int ret = 0;
+
+ if (priv->btmrvl_dev.hscfgcmd) {
+ priv->btmrvl_dev.hscfgcmd = 0;
+
+ skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC);
+ if (skb == NULL) {
+ BT_ERR("No free skb");
+ return -ENOMEM;
+ }
+
+ cmd = (struct btmrvl_cmd *) skb_put(skb, sizeof(*cmd));
+ cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF, BT_CMD_HOST_SLEEP_CONFIG));
+ cmd->length = 2;
+ cmd->data[0] = (priv->btmrvl_dev.gpio_gap & 0xff00) >> 8;
+ cmd->data[1] = (u8) (priv->btmrvl_dev.gpio_gap & 0x00ff);
+
+ bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT;
+
+ skb->dev = (void *) priv->btmrvl_dev.hcidev;
+ skb_queue_head(&priv->adapter->tx_queue, skb);
+
+ BT_DBG("Queue HSCFG Command, gpio=0x%x, gap=0x%x",
+ cmd->data[0], cmd->data[1]);
+ }
+
+ if (priv->btmrvl_dev.pscmd) {
+ priv->btmrvl_dev.pscmd = 0;
+
+ skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC);
+ if (skb == NULL) {
+ BT_ERR("No free skb");
+ return -ENOMEM;
+ }
+
+ cmd = (struct btmrvl_cmd *) skb_put(skb, sizeof(*cmd));
+ cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF, BT_CMD_AUTO_SLEEP_MODE));
+ cmd->length = 1;
+
+ if (priv->btmrvl_dev.psmode)
+ cmd->data[0] = BT_PS_ENABLE;
+ else
+ cmd->data[0] = BT_PS_DISABLE;
+
+ bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT;
+
+ skb->dev = (void *) priv->btmrvl_dev.hcidev;
+ skb_queue_head(&priv->adapter->tx_queue, skb);
+
+ BT_DBG("Queue PSMODE Command:%d", cmd->data[0]);
+ }
+
+ 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;
+ }
+ }
+
+ return ret;
+}
+
+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;
+ }
+
+ if (skb_headroom(skb) < BTM_HEADER_LEN) {
+ struct sk_buff *tmp = skb;
+
+ skb = skb_realloc_headroom(skb, BTM_HEADER_LEN);
+ if (!skb) {
+ BT_ERR("Tx Error: realloc_headroom failed %d",
+ BTM_HEADER_LEN);
+ skb = tmp;
+ return -EINVAL;
+ }
+
+ kfree_skb(tmp);
+ }
+
+ 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] = bt_cb(skb)->pkt_type;
+
+ 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)
+{
+ skb_queue_head_init(&priv->adapter->tx_queue);
+
+ priv->adapter->ps_state = PS_AWAKE;
+
+ init_waitqueue_head(&priv->adapter->cmd_wait_q);
+}
+
+static void btmrvl_free_adapter(struct btmrvl_private *priv)
+{
+ skb_queue_purge(&priv->adapter->tx_queue);
+
+ kfree(priv->adapter);
+
+ priv->adapter = NULL;
+}
+
+static int btmrvl_ioctl(struct hci_dev *hdev,
+ unsigned int cmd, unsigned long arg)
+{
+ return -ENOIOCTLCMD;
+}
+
+static void btmrvl_destruct(struct hci_dev *hdev)
+{
+}
+
+static int btmrvl_send_frame(struct sk_buff *skb)
+{
+ struct hci_dev *hdev = (struct hci_dev *) skb->dev;
+ struct btmrvl_private *priv = NULL;
+
+ BT_DBG("type=%d, len=%d", skb->pkt_type, skb->len);
+
+ if (!hdev || !hdev->driver_data) {
+ BT_ERR("Frame for unknown HCI device");
+ return -ENODEV;
+ }
+
+ priv = (struct btmrvl_private *) hdev->driver_data;
+ if (!test_bit(HCI_RUNNING, &hdev->flags)) {
+ BT_ERR("Failed testing HCI_RUNING, flags=%lx", hdev->flags);
+ print_hex_dump_bytes("data: ", DUMP_PREFIX_OFFSET,
+ skb->data, skb->len);
+ return -EBUSY;
+ }
+
+ switch (bt_cb(skb)->pkt_type) {
+ 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);
+
+ wake_up_interruptible(&priv->main_thread.wait_q);
+
+ return 0;
+}
+
+static int btmrvl_flush(struct hci_dev *hdev)
+{
+ struct btmrvl_private *priv = hdev->driver_data;
+
+ skb_queue_purge(&priv->adapter->tx_queue);
+
+ return 0;
+}
+
+static int btmrvl_close(struct hci_dev *hdev)
+{
+ struct btmrvl_private *priv = hdev->driver_data;
+
+ if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
+ return 0;
+
+ skb_queue_purge(&priv->adapter->tx_queue);
+
+ return 0;
+}
+
+static int btmrvl_open(struct hci_dev *hdev)
+{
+ set_bit(HCI_RUNNING, &hdev->flags);
+
+ 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_t wait;
+ struct sk_buff *skb;
+ ulong flags;
+
+ init_waitqueue_entry(&wait, current);
+
+ current->flags |= PF_NOFREEZE;
+
+ for (;;) {
+ add_wait_queue(&thread->wait_q, &wait);
+
+ set_current_state(TASK_INTERRUPTIBLE);
+
+ 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()) {
+ BT_DBG("main_thread: break from main thread");
+ break;
+ }
+
+ spin_lock_irqsave(&priv->driver_lock, flags);
+ if (adapter->int_count) {
+ adapter->int_count = 0;
+ } 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;
+ }
+ spin_unlock_irqrestore(&priv->driver_lock, flags);
+
+ if (adapter->ps_state == PS_SLEEP)
+ continue;
+
+ if (!priv->btmrvl_dev.tx_dnld_rdy)
+ 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;
+}
+
+struct btmrvl_private *btmrvl_add_card(void *card)
+{
+ struct hci_dev *hdev = NULL;
+ struct btmrvl_private *priv;
+ int ret;
+
+ 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);
+
+ hdev = hci_alloc_dev();
+ if (!hdev) {
+ BT_ERR("Can not allocate HCI device");
+ goto err_hdev;
+ }
+
+ 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");
+
+ priv->btmrvl_dev.hcidev = hdev;
+ priv->btmrvl_dev.card = card;
+
+ hdev->driver_data = priv;
+
+ priv->btmrvl_dev.tx_dnld_rdy = true;
+
+ hdev->type = HCI_SDIO;
+ hdev->open = btmrvl_open;
+ hdev->close = btmrvl_close;
+ hdev->flush = btmrvl_flush;
+ hdev->send = btmrvl_send_frame;
+ hdev->destruct = btmrvl_destruct;
+ hdev->ioctl = btmrvl_ioctl;
+ hdev->owner = THIS_MODULE;
+
+ 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 priv;
+
+err_hci_register_dev:
+ /* Stop the thread servicing the interrupts */
+ kthread_stop(priv->main_thread.task);
+
+ hci_free_dev(hdev);
+
+err_hdev:
+ 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);
+
+ 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");
diff --git a/drivers/bluetooth/btmrvl_sdio.c b/drivers/bluetooth/btmrvl_sdio.c
new file mode 100644
index 00000000000..5b33b85790f
--- /dev/null
+++ b/drivers/bluetooth/btmrvl_sdio.c
@@ -0,0 +1,1003 @@
+/**
+ * Marvell BT-over-SDIO driver: SDIO interface related functions.
+ *
+ * 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/firmware.h>
+
+#include <linux/mmc/sdio_ids.h>
+#include <linux/mmc/sdio_func.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+
+#include "btmrvl_drv.h"
+#include "btmrvl_sdio.h"
+
+#define VERSION "1.0"
+
+/* The btmrvl_sdio_remove() callback function is called
+ * when user removes this module from kernel space or ejects
+ * the card from the slot. The driver handles these 2 cases
+ * differently.
+ * If the user is removing the module, a MODULE_SHUTDOWN_REQ
+ * command is sent to firmware and interrupt will be disabled.
+ * If the card is removed, there is no need to send command
+ * or disable interrupt.
+ *
+ * The variable 'user_rmmod' is used to distinguish these two
+ * scenarios. This flag is initialized as FALSE in case the card
+ * is removed, and will be set to TRUE for module removal when
+ * module_exit function is called.
+ */
+static u8 user_rmmod;
+
+static const struct btmrvl_sdio_device btmrvl_sdio_sd6888 = {
+ .helper = "sd8688_helper.bin",
+ .firmware = "sd8688.bin",
+};
+
+static const struct sdio_device_id btmrvl_sdio_ids[] = {
+ /* Marvell SD8688 Bluetooth device */
+ { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x9105),
+ .driver_data = (unsigned long) &btmrvl_sdio_sd6888 },
+
+ { } /* Terminating entry */
+};
+
+MODULE_DEVICE_TABLE(sdio, btmrvl_sdio_ids);
+
+static int btmrvl_sdio_get_rx_unit(struct btmrvl_sdio_card *card)
+{
+ u8 reg;
+ int ret;
+
+ reg = sdio_readb(card->func, CARD_RX_UNIT_REG, &ret);
+ if (!ret)
+ card->rx_unit = reg;
+
+ return ret;
+}
+
+static int btmrvl_sdio_read_fw_status(struct btmrvl_sdio_card *card, u16 *dat)
+{
+ u8 fws0, fws1;
+ int ret;
+
+ *dat = 0;
+
+ fws0 = sdio_readb(card->func, CARD_FW_STATUS0_REG, &ret);
+
+ if (!ret)
+ fws1 = sdio_readb(card->func, CARD_FW_STATUS1_REG, &ret);
+
+ if (ret)
+ return -EIO;
+
+ *dat = (((u16) fws1) << 8) | fws0;
+
+ return 0;
+}
+
+static int btmrvl_sdio_read_rx_len(struct btmrvl_sdio_card *card, u16 *dat)
+{
+ u8 reg;
+ int ret;
+
+ reg = sdio_readb(card->func, CARD_RX_LEN_REG, &ret);
+ if (!ret)
+ *dat = (u16) reg << card->rx_unit;
+
+ return ret;
+}
+
+static int btmrvl_sdio_enable_host_int_mask(struct btmrvl_sdio_card *card,
+ u8 mask)
+{
+ int ret;
+
+ sdio_writeb(card->func, mask, HOST_INT_MASK_REG, &ret);
+ if (ret) {
+ BT_ERR("Unable to enable the host interrupt!");
+ ret = -EIO;
+ }
+
+ return ret;
+}
+
+static int btmrvl_sdio_disable_host_int_mask(struct btmrvl_sdio_card *card,
+ u8 mask)
+{
+ u8 host_int_mask;
+ int ret;
+
+ host_int_mask = sdio_readb(card->func, HOST_INT_MASK_REG, &ret);
+ if (ret)
+ return -EIO;
+
+ host_int_mask &= ~mask;
+
+ sdio_writeb(card->func, host_int_mask, HOST_INT_MASK_REG, &ret);
+ if (ret < 0) {
+ BT_ERR("Unable to disable the host interrupt!");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int btmrvl_sdio_poll_card_status(struct btmrvl_sdio_card *card, u8 bits)
+{
+ unsigned int tries;
+ u8 status;
+ int ret;
+
+ for (tries = 0; tries < MAX_POLL_TRIES * 1000; tries++) {
+ status = sdio_readb(card->func, CARD_STATUS_REG, &ret);
+ if (ret)
+ goto failed;
+ if ((status & bits) == bits)
+ return ret;
+
+ udelay(1);
+ }
+
+ ret = -ETIMEDOUT;
+
+failed:
+ BT_ERR("FAILED! ret=%d", ret);
+
+ return ret;
+}
+
+static int btmrvl_sdio_verify_fw_download(struct btmrvl_sdio_card *card,
+ int pollnum)
+{
+ int ret = -ETIMEDOUT;
+ u16 firmwarestat;
+ unsigned int tries;
+
+ /* Wait for firmware to become ready */
+ for (tries = 0; tries < pollnum; tries++) {
+ if (btmrvl_sdio_read_fw_status(card, &firmwarestat) < 0)
+ continue;
+
+ if (firmwarestat == FIRMWARE_READY) {
+ ret = 0;
+ break;
+ } else {
+ msleep(10);
+ }
+ }
+
+ return ret;
+}
+
+static int btmrvl_sdio_download_helper(struct btmrvl_sdio_card *card)
+{
+ const struct firmware *fw_helper = NULL;
+ const u8 *helper = NULL;
+ int ret;
+ void *tmphlprbuf = NULL;
+ int tmphlprbufsz, hlprblknow, helperlen;
+ u8 *helperbuf;
+ u32 tx_len;
+
+ ret = request_firmware(&fw_helper, card->helper,
+ &card->func->dev);
+ if ((ret < 0) || !fw_helper) {
+ BT_ERR("request_firmware(helper) failed, error code = %d",
+ ret);
+ ret = -ENOENT;
+ goto done;
+ }
+
+ helper = fw_helper->data;
+ helperlen = fw_helper->size;
+
+ BT_DBG("Downloading helper image (%d bytes), block size %d bytes",
+ helperlen, SDIO_BLOCK_SIZE);
+
+ tmphlprbufsz = ALIGN_SZ(BTM_UPLD_SIZE, BTSDIO_DMA_ALIGN);
+
+ tmphlprbuf = kmalloc(tmphlprbufsz, GFP_KERNEL);
+ if (!tmphlprbuf) {
+ BT_ERR("Unable to allocate buffer for helper."
+ " Terminating download");
+ ret = -ENOMEM;
+ goto done;
+ }
+
+ memset(tmphlprbuf, 0, tmphlprbufsz);
+
+ helperbuf = (u8 *) ALIGN_ADDR(tmphlprbuf, BTSDIO_DMA_ALIGN);
+
+ /* Perform helper data transfer */
+ tx_len = (FIRMWARE_TRANSFER_NBLOCK * SDIO_BLOCK_SIZE)
+ - SDIO_HEADER_LEN;
+ hlprblknow = 0;
+
+ do {
+ ret = btmrvl_sdio_poll_card_status(card,
+ CARD_IO_READY | DN_LD_CARD_RDY);
+ if (ret < 0) {
+ BT_ERR("Helper download poll status timeout @ %d",
+ hlprblknow);
+ goto done;
+ }
+
+ /* Check if there is more data? */
+ if (hlprblknow >= helperlen)
+ break;
+
+ if (helperlen - hlprblknow < tx_len)
+ tx_len = helperlen - hlprblknow;
+
+ /* Little-endian */
+ helperbuf[0] = ((tx_len & 0x000000ff) >> 0);
+ helperbuf[1] = ((tx_len & 0x0000ff00) >> 8);
+ helperbuf[2] = ((tx_len & 0x00ff0000) >> 16);
+ helperbuf[3] = ((tx_len & 0xff000000) >> 24);
+
+ memcpy(&helperbuf[SDIO_HEADER_LEN], &helper[hlprblknow],
+ tx_len);
+
+ /* Now send the data */
+ ret = sdio_writesb(card->func, card->ioport, helperbuf,
+ FIRMWARE_TRANSFER_NBLOCK * SDIO_BLOCK_SIZE);
+ if (ret < 0) {
+ BT_ERR("IO error during helper download @ %d",
+ hlprblknow);
+ goto done;
+ }
+
+ hlprblknow += tx_len;
+ } while (true);
+
+ BT_DBG("Transferring helper image EOF block");
+
+ memset(helperbuf, 0x0, SDIO_BLOCK_SIZE);
+
+ ret = sdio_writesb(card->func, card->ioport, helperbuf,
+ SDIO_BLOCK_SIZE);
+ if (ret < 0) {
+ BT_ERR("IO error in writing helper image EOF block");
+ goto done;
+ }
+
+ ret = 0;
+
+done:
+ kfree(tmphlprbuf);
+ if (fw_helper)
+ release_firmware(fw_helper);
+
+ return ret;
+}
+
+static int btmrvl_sdio_download_fw_w_helper(struct btmrvl_sdio_card *card)
+{
+ const struct firmware *fw_firmware = NULL;
+ const u8 *firmware = NULL;
+ int firmwarelen, tmpfwbufsz, ret;
+ unsigned int tries, offset;
+ u8 base0, base1;
+ void *tmpfwbuf = NULL;
+ u8 *fwbuf;
+ u16 len;
+ int txlen = 0, tx_blocks = 0, count = 0;
+
+ ret = request_firmware(&fw_firmware, card->firmware,
+ &card->func->dev);
+ if ((ret < 0) || !fw_firmware) {
+ BT_ERR("request_firmware(firmware) failed, error code = %d",
+ ret);
+ ret = -ENOENT;
+ goto done;
+ }
+
+ firmware = fw_firmware->data;
+ firmwarelen = fw_firmware->size;
+
+ BT_DBG("Downloading FW image (%d bytes)", firmwarelen);
+
+ tmpfwbufsz = ALIGN_SZ(BTM_UPLD_SIZE, BTSDIO_DMA_ALIGN);
+ tmpfwbuf = kmalloc(tmpfwbufsz, GFP_KERNEL);
+ if (!tmpfwbuf) {
+ BT_ERR("Unable to allocate buffer for firmware."
+ " Terminating download");
+ ret = -ENOMEM;
+ goto done;
+ }
+
+ memset(tmpfwbuf, 0, tmpfwbufsz);
+
+ /* Ensure aligned firmware buffer */
+ fwbuf = (u8 *) ALIGN_ADDR(tmpfwbuf, BTSDIO_DMA_ALIGN);
+
+ /* Perform firmware data transfer */
+ offset = 0;
+ do {
+ ret = btmrvl_sdio_poll_card_status(card,
+ CARD_IO_READY | DN_LD_CARD_RDY);
+ if (ret < 0) {
+ BT_ERR("FW download with helper poll status"
+ " timeout @ %d", offset);
+ goto done;
+ }
+
+ /* Check if there is more data ? */
+ if (offset >= firmwarelen)
+ break;
+
+ for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
+ base0 = sdio_readb(card->func,
+ SQ_READ_BASE_ADDRESS_A0_REG, &ret);
+ if (ret) {
+ BT_ERR("BASE0 register read failed:"
+ " base0 = 0x%04X(%d)."
+ " Terminating download",
+ base0, base0);
+ ret = -EIO;
+ goto done;
+ }
+ base1 = sdio_readb(card->func,
+ SQ_READ_BASE_ADDRESS_A1_REG, &ret);
+ if (ret) {
+ BT_ERR("BASE1 register read failed:"
+ " base1 = 0x%04X(%d)."
+ " Terminating download",
+ base1, base1);
+ ret = -EIO;
+ goto done;
+ }
+
+ len = (((u16) base1) << 8) | base0;
+ if (len)
+ break;
+
+ udelay(10);
+ }
+
+ if (!len)
+ break;
+ else if (len > BTM_UPLD_SIZE) {
+ BT_ERR("FW download failure @%d, invalid length %d",
+ offset, len);
+ ret = -EINVAL;
+ goto done;
+ }
+
+ txlen = len;
+
+ if (len & BIT(0)) {
+ count++;
+ if (count > MAX_WRITE_IOMEM_RETRY) {
+ BT_ERR("FW download failure @%d, "
+ "over max retry count", offset);
+ ret = -EIO;
+ goto done;
+ }
+ BT_ERR("FW CRC error indicated by the helper: "
+ "len = 0x%04X, txlen = %d", len, txlen);
+ len &= ~BIT(0);
+ /* Set txlen to 0 so as to resend from same offset */
+ txlen = 0;
+ } else {
+ count = 0;
+
+ /* Last block ? */
+ if (firmwarelen - offset < txlen)
+ txlen = firmwarelen - offset;
+
+ tx_blocks =
+ (txlen + SDIO_BLOCK_SIZE - 1) / SDIO_BLOCK_SIZE;
+
+ memcpy(fwbuf, &firmware[offset], txlen);
+ }
+
+ ret = sdio_writesb(card->func, card->ioport, fwbuf,
+ tx_blocks * SDIO_BLOCK_SIZE);
+
+ if (ret < 0) {
+ BT_ERR("FW download, writesb(%d) failed @%d",
+ count, offset);
+ sdio_writeb(card->func, HOST_CMD53_FIN, CONFIG_REG,
+ &ret);
+ if (ret)
+ BT_ERR("writeb failed (CFG)");
+ }
+
+ offset += txlen;
+ } while (true);
+
+ BT_DBG("FW download over, size %d bytes", offset);
+
+ ret = 0;
+
+done:
+ kfree(tmpfwbuf);
+
+ if (fw_firmware)
+ release_firmware(fw_firmware);
+
+ return ret;
+}
+
+static int btmrvl_sdio_card_to_host(struct btmrvl_private *priv)
+{
+ u16 buf_len = 0;
+ int ret, buf_block_len, blksz;
+ struct sk_buff *skb = NULL;
+ u32 type;
+ u8 *payload = NULL;
+ struct hci_dev *hdev = priv->btmrvl_dev.hcidev;
+ struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
+
+ if (!card || !card->func) {
+ BT_ERR("card or function is NULL!");
+ ret = -EINVAL;
+ goto exit;
+ }
+
+ /* Read the length of data to be transferred */
+ ret = btmrvl_sdio_read_rx_len(card, &buf_len);
+ if (ret < 0) {
+ BT_ERR("read rx_len failed");
+ ret = -EIO;
+ goto exit;
+ }
+
+ blksz = SDIO_BLOCK_SIZE;
+ buf_block_len = (buf_len + blksz - 1) / blksz;
+
+ if (buf_len <= SDIO_HEADER_LEN
+ || (buf_block_len * blksz) > ALLOC_BUF_SIZE) {
+ BT_ERR("invalid packet length: %d", buf_len);
+ ret = -EINVAL;
+ goto exit;
+ }
+
+ /* Allocate buffer */
+ skb = bt_skb_alloc(buf_block_len * blksz + BTSDIO_DMA_ALIGN,
+ GFP_ATOMIC);
+ if (skb == NULL) {
+ BT_ERR("No free skb");
+ goto exit;
+ }
+
+ if ((unsigned long) skb->data & (BTSDIO_DMA_ALIGN - 1)) {
+ skb_put(skb, (unsigned long) skb->data &
+ (BTSDIO_DMA_ALIGN - 1));
+ skb_pull(skb, (unsigned long) skb->data &
+ (BTSDIO_DMA_ALIGN - 1));
+ }
+
+ payload = skb->data;
+
+ ret = sdio_readsb(card->func, payload, card->ioport,
+ buf_block_len * blksz);
+ if (ret < 0) {
+ BT_ERR("readsb failed: %d", ret);
+ ret = -EIO;
+ goto exit;
+ }
+
+ /* This is SDIO specific header length: byte[2][1][0], type: byte[3]
+ * (HCI_COMMAND = 1, ACL_DATA = 2, SCO_DATA = 3, 0xFE = Vendor)
+ */
+
+ buf_len = payload[0];
+ buf_len |= (u16) payload[1] << 8;
+ type = payload[3];
+
+ switch (type) {
+ case HCI_ACLDATA_PKT:
+ case HCI_SCODATA_PKT:
+ case HCI_EVENT_PKT:
+ bt_cb(skb)->pkt_type = type;
+ skb->dev = (void *)hdev;
+ skb_put(skb, buf_len);
+ skb_pull(skb, SDIO_HEADER_LEN);
+
+ if (type == HCI_EVENT_PKT)
+ btmrvl_check_evtpkt(priv, skb);
+
+ hci_recv_frame(skb);
+ hdev->stat.byte_rx += buf_len;
+ break;
+
+ case MRVL_VENDOR_PKT:
+ bt_cb(skb)->pkt_type = HCI_VENDOR_PKT;
+ skb->dev = (void *)hdev;
+ skb_put(skb, buf_len);
+ skb_pull(skb, SDIO_HEADER_LEN);
+
+ if (btmrvl_process_event(priv, skb))
+ hci_recv_frame(skb);
+
+ hdev->stat.byte_rx += buf_len;
+ break;
+
+ default:
+ BT_ERR("Unknow packet type:%d", type);
+ print_hex_dump_bytes("", DUMP_PREFIX_OFFSET, payload,
+ blksz * buf_block_len);
+
+ kfree_skb(skb);
+ skb = NULL;
+ break;
+ }
+
+exit:
+ if (ret) {
+ hdev->stat.err_rx++;
+ if (skb)
+ kfree_skb(skb);
+ }
+
+ return ret;
+}
+
+static int btmrvl_sdio_get_int_status(struct btmrvl_private *priv, u8 * ireg)
+{
+ int ret;
+ u8 sdio_ireg = 0;
+ struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
+
+ *ireg = 0;
+
+ sdio_ireg = sdio_readb(card->func, HOST_INTSTATUS_REG, &ret);
+ if (ret) {
+ BT_ERR("sdio_readb: read int status register failed");
+ ret = -EIO;
+ goto done;
+ }
+
+ if (sdio_ireg != 0) {
+ /*
+ * DN_LD_HOST_INT_STATUS and/or UP_LD_HOST_INT_STATUS
+ * Clear the interrupt status register and re-enable the
+ * interrupt.
+ */
+ BT_DBG("sdio_ireg = 0x%x", sdio_ireg);
+
+ sdio_writeb(card->func, ~(sdio_ireg) & (DN_LD_HOST_INT_STATUS |
+ UP_LD_HOST_INT_STATUS),
+ HOST_INTSTATUS_REG, &ret);
+ if (ret) {
+ BT_ERR("sdio_writeb: clear int status register "
+ "failed");
+ ret = -EIO;
+ goto done;
+ }
+ }
+
+ if (sdio_ireg & DN_LD_HOST_INT_STATUS) {
+ if (priv->btmrvl_dev.tx_dnld_rdy)
+ BT_DBG("tx_done already received: "
+ " int_status=0x%x", sdio_ireg);
+ else
+ priv->btmrvl_dev.tx_dnld_rdy = true;
+ }
+
+ if (sdio_ireg & UP_LD_HOST_INT_STATUS)
+ btmrvl_sdio_card_to_host(priv);
+
+ *ireg = sdio_ireg;
+
+ ret = 0;
+
+done:
+ return ret;
+}
+
+static void btmrvl_sdio_interrupt(struct sdio_func *func)
+{
+ struct btmrvl_private *priv;
+ struct hci_dev *hcidev;
+ struct btmrvl_sdio_card *card;
+ u8 ireg = 0;
+
+ card = sdio_get_drvdata(func);
+ if (card && card->priv) {
+ priv = card->priv;
+ hcidev = priv->btmrvl_dev.hcidev;
+
+ if (btmrvl_sdio_get_int_status(priv, &ireg))
+ BT_ERR("reading HOST_INT_STATUS_REG failed");
+ else
+ BT_DBG("HOST_INT_STATUS_REG %#x", ireg);
+
+ btmrvl_interrupt(priv);
+ }
+}
+
+static int btmrvl_sdio_register_dev(struct btmrvl_sdio_card *card)
+{
+ struct sdio_func *func;
+ u8 reg;
+ int ret = 0;
+
+ if (!card || !card->func) {
+ BT_ERR("Error: card or function is NULL!");
+ ret = -EINVAL;
+ goto failed;
+ }
+
+ func = card->func;
+
+ sdio_claim_host(func);
+
+ ret = sdio_enable_func(func);
+ if (ret) {
+ BT_ERR("sdio_enable_func() failed: ret=%d", ret);
+ ret = -EIO;
+ goto release_host;
+ }
+
+ ret = sdio_claim_irq(func, btmrvl_sdio_interrupt);
+ if (ret) {
+ BT_ERR("sdio_claim_irq failed: ret=%d", ret);
+ ret = -EIO;
+ goto disable_func;
+ }
+
+ ret = sdio_set_block_size(card->func, SDIO_BLOCK_SIZE);
+ if (ret) {
+ BT_ERR("cannot set SDIO block size");
+ ret = -EIO;
+ goto release_irq;
+ }
+
+ reg = sdio_readb(func, IO_PORT_0_REG, &ret);
+ if (ret < 0) {
+ ret = -EIO;
+ goto release_irq;
+ }
+
+ card->ioport = reg;
+
+ reg = sdio_readb(func, IO_PORT_1_REG, &ret);
+ if (ret < 0) {
+ ret = -EIO;
+ goto release_irq;
+ }
+
+ card->ioport |= (reg << 8);
+
+ reg = sdio_readb(func, IO_PORT_2_REG, &ret);
+ if (ret < 0) {
+ ret = -EIO;
+ goto release_irq;
+ }
+
+ card->ioport |= (reg << 16);
+
+ BT_DBG("SDIO FUNC%d IO port: 0x%x", func->num, card->ioport);
+
+ sdio_set_drvdata(func, card);
+
+ sdio_release_host(func);
+
+ return 0;
+
+release_irq:
+ sdio_release_irq(func);
+
+disable_func:
+ sdio_disable_func(func);
+
+release_host:
+ sdio_release_host(func);
+
+failed:
+ return ret;
+}
+
+static int btmrvl_sdio_unregister_dev(struct btmrvl_sdio_card *card)
+{
+ if (card && card->func) {
+ sdio_claim_host(card->func);
+ sdio_release_irq(card->func);
+ sdio_disable_func(card->func);
+ sdio_release_host(card->func);
+ sdio_set_drvdata(card->func, NULL);
+ }
+
+ return 0;
+}
+
+static int btmrvl_sdio_enable_host_int(struct btmrvl_sdio_card *card)
+{
+ int ret;
+
+ if (!card || !card->func)
+ return -EINVAL;
+
+ sdio_claim_host(card->func);
+
+ ret = btmrvl_sdio_enable_host_int_mask(card, HIM_ENABLE);
+
+ btmrvl_sdio_get_rx_unit(card);
+
+ sdio_release_host(card->func);
+
+ return ret;
+}
+
+static int btmrvl_sdio_disable_host_int(struct btmrvl_sdio_card *card)
+{
+ int ret;
+
+ if (!card || !card->func)
+ return -EINVAL;
+
+ sdio_claim_host(card->func);
+
+ ret = btmrvl_sdio_disable_host_int_mask(card, HIM_DISABLE);
+
+ sdio_release_host(card->func);
+
+ return ret;
+}
+
+static int btmrvl_sdio_host_to_card(struct btmrvl_private *priv,
+ u8 *payload, u16 nb)
+{
+ struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
+ int ret = 0;
+ int buf_block_len;
+ int blksz;
+ int i = 0;
+ u8 *buf = NULL;
+ void *tmpbuf = NULL;
+ int tmpbufsz;
+
+ if (!card || !card->func) {
+ BT_ERR("card or function is NULL!");
+ return -EINVAL;
+ }
+
+ buf = payload;
+ if ((unsigned long) payload & (BTSDIO_DMA_ALIGN - 1)) {
+ tmpbufsz = ALIGN_SZ(nb, BTSDIO_DMA_ALIGN);
+ tmpbuf = kzalloc(tmpbufsz, GFP_KERNEL);
+ if (!tmpbuf)
+ return -ENOMEM;
+ buf = (u8 *) ALIGN_ADDR(tmpbuf, BTSDIO_DMA_ALIGN);
+ memcpy(buf, payload, nb);
+ }
+
+ blksz = SDIO_BLOCK_SIZE;
+ buf_block_len = (nb + blksz - 1) / blksz;
+
+ sdio_claim_host(card->func);
+
+ do {
+ /* Transfer data to card */
+ ret = sdio_writesb(card->func, card->ioport, buf,
+ buf_block_len * blksz);
+ if (ret < 0) {
+ i++;
+ BT_ERR("i=%d writesb failed: %d", i, ret);
+ print_hex_dump_bytes("", DUMP_PREFIX_OFFSET,
+ payload, nb);
+ ret = -EIO;
+ if (i > MAX_WRITE_IOMEM_RETRY)
+ goto exit;
+ }
+ } while (ret);
+
+ priv->btmrvl_dev.tx_dnld_rdy = false;
+
+exit:
+ sdio_release_host(card->func);
+
+ return ret;
+}
+
+static int btmrvl_sdio_download_fw(struct btmrvl_sdio_card *card)
+{
+ int ret = 0;
+
+ if (!card || !card->func) {
+ BT_ERR("card or function is NULL!");
+ return -EINVAL;
+ }
+ sdio_claim_host(card->func);
+
+ if (!btmrvl_sdio_verify_fw_download(card, 1)) {
+ BT_DBG("Firmware already downloaded!");
+ goto done;
+ }
+
+ ret = btmrvl_sdio_download_helper(card);
+ if (ret) {
+ BT_ERR("Failed to download helper!");
+ ret = -EIO;
+ goto done;
+ }
+
+ if (btmrvl_sdio_download_fw_w_helper(card)) {
+ BT_ERR("Failed to download firmware!");
+ ret = -EIO;
+ goto done;
+ }
+
+ if (btmrvl_sdio_verify_fw_download(card, MAX_POLL_TRIES)) {
+ BT_ERR("FW failed to be active in time!");
+ ret = -ETIMEDOUT;
+ goto done;
+ }
+
+done:
+ sdio_release_host(card->func);
+
+ return ret;
+}
+
+static int btmrvl_sdio_wakeup_fw(struct btmrvl_private *priv)
+{
+ struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
+ int ret = 0;
+
+ if (!card || !card->func) {
+ BT_ERR("card or function is NULL!");
+ return -EINVAL;
+ }
+
+ sdio_claim_host(card->func);
+
+ sdio_writeb(card->func, HOST_POWER_UP, CONFIG_REG, &ret);
+
+ sdio_release_host(card->func);
+
+ BT_DBG("wake up firmware");
+
+ return ret;
+}
+
+static int btmrvl_sdio_probe(struct sdio_func *func,
+ const struct sdio_device_id *id)
+{
+ int ret = 0;
+ struct btmrvl_private *priv = NULL;
+ struct btmrvl_sdio_card *card = NULL;
+
+ BT_INFO("vendor=0x%x, device=0x%x, class=%d, fn=%d",
+ id->vendor, id->device, id->class, func->num);
+
+ card = kzalloc(sizeof(*card), GFP_KERNEL);
+ if (!card) {
+ ret = -ENOMEM;
+ goto done;
+ }
+
+ card->func = func;
+
+ if (id->driver_data) {
+ struct btmrvl_sdio_device *data = (void *) id->driver_data;
+ card->helper = data->helper;
+ card->firmware = data->firmware;
+ }
+
+ if (btmrvl_sdio_register_dev(card) < 0) {
+ BT_ERR("Failed to register BT device!");
+ ret = -ENODEV;
+ goto free_card;
+ }
+
+ /* Disable the interrupts on the card */
+ btmrvl_sdio_disable_host_int(card);
+
+ if (btmrvl_sdio_download_fw(card)) {
+ BT_ERR("Downloading firmware failed!");
+ ret = -ENODEV;
+ goto unreg_dev;
+ }
+
+ msleep(100);
+
+ btmrvl_sdio_enable_host_int(card);
+
+ priv = btmrvl_add_card(card);
+ if (!priv) {
+ BT_ERR("Initializing card failed!");
+ ret = -ENODEV;
+ goto disable_host_int;
+ }
+
+ card->priv = priv;
+
+ /* Initialize the interface specific function pointers */
+ priv->hw_host_to_card = btmrvl_sdio_host_to_card;
+ priv->hw_wakeup_firmware = btmrvl_sdio_wakeup_fw;
+
+ btmrvl_send_module_cfg_cmd(priv, MODULE_BRINGUP_REQ);
+
+ return 0;
+
+disable_host_int:
+ btmrvl_sdio_disable_host_int(card);
+unreg_dev:
+ btmrvl_sdio_unregister_dev(card);
+free_card:
+ kfree(card);
+done:
+ return ret;
+}
+
+static void btmrvl_sdio_remove(struct sdio_func *func)
+{
+ struct btmrvl_sdio_card *card;
+
+ if (func) {
+ card = sdio_get_drvdata(func);
+ if (card) {
+ /* Send SHUTDOWN command & disable interrupt
+ * if user removes the module.
+ */
+ if (user_rmmod) {
+ btmrvl_send_module_cfg_cmd(card->priv,
+ MODULE_SHUTDOWN_REQ);
+ btmrvl_sdio_disable_host_int(card);
+ }
+ BT_DBG("unregester dev");
+ btmrvl_sdio_unregister_dev(card);
+ btmrvl_remove_card(card->priv);
+ kfree(card);
+ }
+ }
+}
+
+static struct sdio_driver bt_mrvl_sdio = {
+ .name = "btmrvl_sdio",
+ .id_table = btmrvl_sdio_ids,
+ .probe = btmrvl_sdio_probe,
+ .remove = btmrvl_sdio_remove,
+};
+
+static int btmrvl_sdio_init_module(void)
+{
+ if (sdio_register_driver(&bt_mrvl_sdio) != 0) {
+ BT_ERR("SDIO Driver Registration Failed");
+ return -ENODEV;
+ }
+
+ /* Clear the flag in case user removes the card. */
+ user_rmmod = 0;
+
+ return 0;
+}
+
+static void btmrvl_sdio_exit_module(void)
+{
+ /* Set the flag as user is removing this module. */
+ user_rmmod = 1;
+
+ sdio_unregister_driver(&bt_mrvl_sdio);
+}
+
+module_init(btmrvl_sdio_init_module);
+module_exit(btmrvl_sdio_exit_module);
+
+MODULE_AUTHOR("Marvell International Ltd.");
+MODULE_DESCRIPTION("Marvell BT-over-SDIO driver ver " VERSION);
+MODULE_VERSION(VERSION);
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/bluetooth/btmrvl_sdio.h b/drivers/bluetooth/btmrvl_sdio.h
new file mode 100644
index 00000000000..27329f107e5
--- /dev/null
+++ b/drivers/bluetooth/btmrvl_sdio.h
@@ -0,0 +1,108 @@
+/**
+ * Marvell BT-over-SDIO driver: SDIO interface related definitions
+ *
+ * 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.
+ *
+ **/
+
+#define SDIO_HEADER_LEN 4
+
+/* SD block size can not bigger than 64 due to buf size limit in firmware */
+/* define SD block size for data Tx/Rx */
+#define SDIO_BLOCK_SIZE 64
+
+/* Number of blocks for firmware transfer */
+#define FIRMWARE_TRANSFER_NBLOCK 2
+
+/* This is for firmware specific length */
+#define FW_EXTRA_LEN 36
+
+#define MRVDRV_SIZE_OF_CMD_BUFFER (2 * 1024)
+
+#define MRVDRV_BT_RX_PACKET_BUFFER_SIZE \
+ (HCI_MAX_FRAME_SIZE + FW_EXTRA_LEN)
+
+#define ALLOC_BUF_SIZE (((max_t (int, MRVDRV_BT_RX_PACKET_BUFFER_SIZE, \
+ MRVDRV_SIZE_OF_CMD_BUFFER) + SDIO_HEADER_LEN \
+ + SDIO_BLOCK_SIZE - 1) / SDIO_BLOCK_SIZE) \
+ * SDIO_BLOCK_SIZE)
+
+/* The number of times to try when polling for status */
+#define MAX_POLL_TRIES 100
+
+/* Max retry number of CMD53 write */
+#define MAX_WRITE_IOMEM_RETRY 2
+
+/* Host Control Registers */
+#define IO_PORT_0_REG 0x00
+#define IO_PORT_1_REG 0x01
+#define IO_PORT_2_REG 0x02
+
+#define CONFIG_REG 0x03
+#define HOST_POWER_UP BIT(1)
+#define HOST_CMD53_FIN BIT(2)
+
+#define HOST_INT_MASK_REG 0x04
+#define HIM_DISABLE 0xff
+#define HIM_ENABLE (BIT(0) | BIT(1))
+
+#define HOST_INTSTATUS_REG 0x05
+#define UP_LD_HOST_INT_STATUS BIT(0)
+#define DN_LD_HOST_INT_STATUS BIT(1)
+
+/* Card Control Registers */
+#define SQ_READ_BASE_ADDRESS_A0_REG 0x10
+#define SQ_READ_BASE_ADDRESS_A1_REG 0x11
+
+#define CARD_STATUS_REG 0x20
+#define DN_LD_CARD_RDY BIT(0)
+#define CARD_IO_READY BIT(3)
+
+#define CARD_FW_STATUS0_REG 0x40
+#define CARD_FW_STATUS1_REG 0x41
+#define FIRMWARE_READY 0xfedc
+
+#define CARD_RX_LEN_REG 0x42
+#define CARD_RX_UNIT_REG 0x43
+
+
+struct btmrvl_sdio_card {
+ struct sdio_func *func;
+ u32 ioport;
+ const char *helper;
+ const char *firmware;
+ u8 rx_unit;
+ struct btmrvl_private *priv;
+};
+
+struct btmrvl_sdio_device {
+ const char *helper;
+ const char *firmware;
+};
+
+
+/* Platform specific DMA alignment */
+#define BTSDIO_DMA_ALIGN 8
+
+/* Macros for Data Alignment : size */
+#define ALIGN_SZ(p, a) \
+ (((p) + ((a) - 1)) & ~((a) - 1))
+
+/* Macros for Data Alignment : address */
+#define ALIGN_ADDR(p, a) \
+ ((((unsigned long)(p)) + (((unsigned long)(a)) - 1)) & \
+ ~(((unsigned long)(a)) - 1))
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index e70c57ee422..7ba91aa3fe8 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -35,7 +35,7 @@
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
-#define VERSION "0.5"
+#define VERSION "0.6"
static int ignore_dga;
static int ignore_csr;
@@ -145,6 +145,7 @@ static struct usb_device_id blacklist_table[] = {
#define BTUSB_INTR_RUNNING 0
#define BTUSB_BULK_RUNNING 1
#define BTUSB_ISOC_RUNNING 2
+#define BTUSB_SUSPENDING 3
struct btusb_data {
struct hci_dev *hdev;
@@ -157,11 +158,15 @@ struct btusb_data {
unsigned long flags;
struct work_struct work;
+ struct work_struct waker;
struct usb_anchor tx_anchor;
struct usb_anchor intr_anchor;
struct usb_anchor bulk_anchor;
struct usb_anchor isoc_anchor;
+ struct usb_anchor deferred;
+ int tx_in_flight;
+ spinlock_t txlock;
struct usb_endpoint_descriptor *intr_ep;
struct usb_endpoint_descriptor *bulk_tx_ep;
@@ -174,8 +179,23 @@ struct btusb_data {
unsigned int sco_num;
int isoc_altsetting;
int suspend_count;
+ int did_iso_resume:1;
};
+static int inc_tx(struct btusb_data *data)
+{
+ unsigned long flags;
+ int rv;
+
+ spin_lock_irqsave(&data->txlock, flags);
+ rv = test_bit(BTUSB_SUSPENDING, &data->flags);
+ if (!rv)
+ data->tx_in_flight++;
+ spin_unlock_irqrestore(&data->txlock, flags);
+
+ return rv;
+}
+
static void btusb_intr_complete(struct urb *urb)
{
struct hci_dev *hdev = urb->context;
@@ -202,6 +222,7 @@ static void btusb_intr_complete(struct urb *urb)
if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
return;
+ usb_mark_last_busy(data->udev);
usb_anchor_urb(urb, &data->intr_anchor);
err = usb_submit_urb(urb, GFP_ATOMIC);
@@ -301,7 +322,7 @@ static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
struct urb *urb;
unsigned char *buf;
unsigned int pipe;
- int err, size;
+ int err, size = HCI_MAX_FRAME_SIZE;
BT_DBG("%s", hdev->name);
@@ -312,8 +333,6 @@ static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
if (!urb)
return -ENOMEM;
- size = le16_to_cpu(data->bulk_rx_ep->wMaxPacketSize);
-
buf = kmalloc(size, mem_flags);
if (!buf) {
usb_free_urb(urb);
@@ -327,6 +346,7 @@ static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
urb->transfer_flags |= URB_FREE_BUFFER;
+ usb_mark_last_busy(data->udev);
usb_anchor_urb(urb, &data->bulk_anchor);
err = usb_submit_urb(urb, mem_flags);
@@ -465,6 +485,33 @@ static void btusb_tx_complete(struct urb *urb)
{
struct sk_buff *skb = urb->context;
struct hci_dev *hdev = (struct hci_dev *) skb->dev;
+ struct btusb_data *data = hdev->driver_data;
+
+ BT_DBG("%s urb %p status %d count %d", hdev->name,
+ urb, urb->status, urb->actual_length);
+
+ if (!test_bit(HCI_RUNNING, &hdev->flags))
+ goto done;
+
+ if (!urb->status)
+ hdev->stat.byte_tx += urb->transfer_buffer_length;
+ else
+ hdev->stat.err_tx++;
+
+done:
+ spin_lock(&data->txlock);
+ data->tx_in_flight--;
+ spin_unlock(&data->txlock);
+
+ kfree(urb->setup_packet);
+
+ kfree_skb(skb);
+}
+
+static void btusb_isoc_tx_complete(struct urb *urb)
+{
+ struct sk_buff *skb = urb->context;
+ struct hci_dev *hdev = (struct hci_dev *) skb->dev;
BT_DBG("%s urb %p status %d count %d", hdev->name,
urb, urb->status, urb->actual_length);
@@ -490,11 +537,17 @@ static int btusb_open(struct hci_dev *hdev)
BT_DBG("%s", hdev->name);
+ err = usb_autopm_get_interface(data->intf);
+ if (err < 0)
+ return err;
+
+ data->intf->needs_remote_wakeup = 1;
+
if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
- return 0;
+ goto done;
if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
- return 0;
+ goto done;
err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
if (err < 0)
@@ -509,17 +562,28 @@ static int btusb_open(struct hci_dev *hdev)
set_bit(BTUSB_BULK_RUNNING, &data->flags);
btusb_submit_bulk_urb(hdev, GFP_KERNEL);
+done:
+ usb_autopm_put_interface(data->intf);
return 0;
failed:
clear_bit(BTUSB_INTR_RUNNING, &data->flags);
clear_bit(HCI_RUNNING, &hdev->flags);
+ usb_autopm_put_interface(data->intf);
return err;
}
+static void btusb_stop_traffic(struct btusb_data *data)
+{
+ usb_kill_anchored_urbs(&data->intr_anchor);
+ usb_kill_anchored_urbs(&data->bulk_anchor);
+ usb_kill_anchored_urbs(&data->isoc_anchor);
+}
+
static int btusb_close(struct hci_dev *hdev)
{
struct btusb_data *data = hdev->driver_data;
+ int err;
BT_DBG("%s", hdev->name);
@@ -529,13 +593,16 @@ static int btusb_close(struct hci_dev *hdev)
cancel_work_sync(&data->work);
clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
- usb_kill_anchored_urbs(&data->isoc_anchor);
-
clear_bit(BTUSB_BULK_RUNNING, &data->flags);
- usb_kill_anchored_urbs(&data->bulk_anchor);
-
clear_bit(BTUSB_INTR_RUNNING, &data->flags);
- usb_kill_anchored_urbs(&data->intr_anchor);
+
+ btusb_stop_traffic(data);
+ err = usb_autopm_get_interface(data->intf);
+ if (err < 0)
+ return 0;
+
+ data->intf->needs_remote_wakeup = 0;
+ usb_autopm_put_interface(data->intf);
return 0;
}
@@ -622,7 +689,7 @@ static int btusb_send_frame(struct sk_buff *skb)
urb->dev = data->udev;
urb->pipe = pipe;
urb->context = skb;
- urb->complete = btusb_tx_complete;
+ urb->complete = btusb_isoc_tx_complete;
urb->interval = data->isoc_tx_ep->bInterval;
urb->transfer_flags = URB_ISO_ASAP;
@@ -633,12 +700,21 @@ static int btusb_send_frame(struct sk_buff *skb)
le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
hdev->stat.sco_tx++;
- break;
+ goto skip_waking;
default:
return -EILSEQ;
}
+ err = inc_tx(data);
+ if (err) {
+ usb_anchor_urb(urb, &data->deferred);
+ schedule_work(&data->waker);
+ err = 0;
+ goto done;
+ }
+
+skip_waking:
usb_anchor_urb(urb, &data->tx_anchor);
err = usb_submit_urb(urb, GFP_ATOMIC);
@@ -646,10 +722,13 @@ static int btusb_send_frame(struct sk_buff *skb)
BT_ERR("%s urb %p submission failed", hdev->name, urb);
kfree(urb->setup_packet);
usb_unanchor_urb(urb);
+ } else {
+ usb_mark_last_busy(data->udev);
}
usb_free_urb(urb);
+done:
return err;
}
@@ -721,8 +800,19 @@ static void btusb_work(struct work_struct *work)
{
struct btusb_data *data = container_of(work, struct btusb_data, work);
struct hci_dev *hdev = data->hdev;
+ int err;
if (hdev->conn_hash.sco_num > 0) {
+ if (!data->did_iso_resume) {
+ err = usb_autopm_get_interface(data->isoc);
+ if (err < 0) {
+ clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
+ usb_kill_anchored_urbs(&data->isoc_anchor);
+ return;
+ }
+
+ data->did_iso_resume = 1;
+ }
if (data->isoc_altsetting != 2) {
clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
usb_kill_anchored_urbs(&data->isoc_anchor);
@@ -742,9 +832,25 @@ static void btusb_work(struct work_struct *work)
usb_kill_anchored_urbs(&data->isoc_anchor);
__set_isoc_interface(hdev, 0);
+ if (data->did_iso_resume) {
+ data->did_iso_resume = 0;
+ usb_autopm_put_interface(data->isoc);
+ }
}
}
+static void btusb_waker(struct work_struct *work)
+{
+ struct btusb_data *data = container_of(work, struct btusb_data, waker);
+ int err;
+
+ err = usb_autopm_get_interface(data->intf);
+ if (err < 0)
+ return;
+
+ usb_autopm_put_interface(data->intf);
+}
+
static int btusb_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
@@ -814,11 +920,14 @@ static int btusb_probe(struct usb_interface *intf,
spin_lock_init(&data->lock);
INIT_WORK(&data->work, btusb_work);
+ INIT_WORK(&data->waker, btusb_waker);
+ spin_lock_init(&data->txlock);
init_usb_anchor(&data->tx_anchor);
init_usb_anchor(&data->intr_anchor);
init_usb_anchor(&data->bulk_anchor);
init_usb_anchor(&data->isoc_anchor);
+ init_usb_anchor(&data->deferred);
hdev = hci_alloc_dev();
if (!hdev) {
@@ -943,6 +1052,7 @@ static void btusb_disconnect(struct usb_interface *intf)
hci_free_dev(hdev);
}
+#ifdef CONFIG_PM
static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
{
struct btusb_data *data = usb_get_intfdata(intf);
@@ -952,22 +1062,44 @@ static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
if (data->suspend_count++)
return 0;
+ spin_lock_irq(&data->txlock);
+ if (!(interface_to_usbdev(intf)->auto_pm && data->tx_in_flight)) {
+ set_bit(BTUSB_SUSPENDING, &data->flags);
+ spin_unlock_irq(&data->txlock);
+ } else {
+ spin_unlock_irq(&data->txlock);
+ data->suspend_count--;
+ return -EBUSY;
+ }
+
cancel_work_sync(&data->work);
+ btusb_stop_traffic(data);
usb_kill_anchored_urbs(&data->tx_anchor);
- usb_kill_anchored_urbs(&data->isoc_anchor);
- usb_kill_anchored_urbs(&data->bulk_anchor);
- usb_kill_anchored_urbs(&data->intr_anchor);
-
return 0;
}
+static void play_deferred(struct btusb_data *data)
+{
+ struct urb *urb;
+ int err;
+
+ while ((urb = usb_get_from_anchor(&data->deferred))) {
+ err = usb_submit_urb(urb, GFP_ATOMIC);
+ if (err < 0)
+ break;
+
+ data->tx_in_flight++;
+ }
+ usb_scuttle_anchored_urbs(&data->deferred);
+}
+
static int btusb_resume(struct usb_interface *intf)
{
struct btusb_data *data = usb_get_intfdata(intf);
struct hci_dev *hdev = data->hdev;
- int err;
+ int err = 0;
BT_DBG("intf %p", intf);
@@ -975,13 +1107,13 @@ static int btusb_resume(struct usb_interface *intf)
return 0;
if (!test_bit(HCI_RUNNING, &hdev->flags))
- return 0;
+ goto done;
if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
err = btusb_submit_intr_urb(hdev, GFP_NOIO);
if (err < 0) {
clear_bit(BTUSB_INTR_RUNNING, &data->flags);
- return err;
+ goto failed;
}
}
@@ -989,9 +1121,10 @@ static int btusb_resume(struct usb_interface *intf)
err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
if (err < 0) {
clear_bit(BTUSB_BULK_RUNNING, &data->flags);
- return err;
- } else
- btusb_submit_bulk_urb(hdev, GFP_NOIO);
+ goto failed;
+ }
+
+ btusb_submit_bulk_urb(hdev, GFP_NOIO);
}
if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
@@ -1001,16 +1134,35 @@ static int btusb_resume(struct usb_interface *intf)
btusb_submit_isoc_urb(hdev, GFP_NOIO);
}
+ spin_lock_irq(&data->txlock);
+ play_deferred(data);
+ clear_bit(BTUSB_SUSPENDING, &data->flags);
+ spin_unlock_irq(&data->txlock);
+ schedule_work(&data->work);
+
return 0;
+
+failed:
+ usb_scuttle_anchored_urbs(&data->deferred);
+done:
+ spin_lock_irq(&data->txlock);
+ clear_bit(BTUSB_SUSPENDING, &data->flags);
+ spin_unlock_irq(&data->txlock);
+
+ return err;
}
+#endif
static struct usb_driver btusb_driver = {
.name = "btusb",
.probe = btusb_probe,
.disconnect = btusb_disconnect,
+#ifdef CONFIG_PM
.suspend = btusb_suspend,
.resume = btusb_resume,
+#endif
.id_table = btusb_table,
+ .supports_autosuspend = 1,
};
static int __init btusb_init(void)
diff --git a/drivers/bluetooth/hci_bcsp.c b/drivers/bluetooth/hci_bcsp.c
index 894b2cb11ea..40aec0fb859 100644
--- a/drivers/bluetooth/hci_bcsp.c
+++ b/drivers/bluetooth/hci_bcsp.c
@@ -373,8 +373,9 @@ static void bcsp_pkt_cull(struct bcsp_struct *bcsp)
i = 0;
skb_queue_walk_safe(&bcsp->unack, skb, tmp) {
- if (i++ >= pkts_to_be_removed)
+ if (i >= pkts_to_be_removed)
break;
+ i++;
__skb_unlink(skb, &bcsp->unack);
kfree_skb(skb);
diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h
index 968166a45f8..718394e2c01 100644
--- a/include/net/bluetooth/bluetooth.h
+++ b/include/net/bluetooth/bluetooth.h
@@ -138,8 +138,11 @@ struct sock *bt_accept_dequeue(struct sock *parent, struct socket *newsock);
struct bt_skb_cb {
__u8 pkt_type;
__u8 incoming;
+ __u8 tx_seq;
+ __u8 retries;
+ __u8 sar;
};
-#define bt_cb(skb) ((struct bt_skb_cb *)(skb->cb))
+#define bt_cb(skb) ((struct bt_skb_cb *)((skb)->cb))
static inline struct sk_buff *bt_skb_alloc(unsigned int len, gfp_t how)
{
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index c4ca4228b08..7b640aeddb6 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -117,7 +117,7 @@ struct hci_dev {
struct sk_buff *sent_cmd;
struct sk_buff *reassembly[3];
- struct semaphore req_lock;
+ struct mutex req_lock;
wait_queue_head_t req_wait_q;
__u32 req_status;
__u32 req_result;
@@ -187,6 +187,7 @@ struct hci_conn {
struct work_struct work_del;
struct device dev;
+ atomic_t devref;
struct hci_dev *hdev;
void *l2cap_data;
@@ -339,6 +340,9 @@ int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
void hci_conn_enter_active_mode(struct hci_conn *conn);
void hci_conn_enter_sniff_mode(struct hci_conn *conn);
+void hci_conn_hold_device(struct hci_conn *conn);
+void hci_conn_put_device(struct hci_conn *conn);
+
static inline void hci_conn_hold(struct hci_conn *conn)
{
atomic_inc(&conn->refcnt);
@@ -700,8 +704,8 @@ struct hci_sec_filter {
#define HCI_REQ_PEND 1
#define HCI_REQ_CANCELED 2
-#define hci_req_lock(d) down(&d->req_lock)
-#define hci_req_unlock(d) up(&d->req_lock)
+#define hci_req_lock(d) mutex_lock(&d->req_lock)
+#define hci_req_unlock(d) mutex_unlock(&d->req_lock)
void hci_req_complete(struct hci_dev *hdev, int result);
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index e919fca1072..9516f4b4a3c 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -27,12 +27,14 @@
/* L2CAP defaults */
#define L2CAP_DEFAULT_MTU 672
+#define L2CAP_DEFAULT_MIN_MTU 48
#define L2CAP_DEFAULT_FLUSH_TO 0xffff
-#define L2CAP_DEFAULT_RX_WINDOW 1
-#define L2CAP_DEFAULT_MAX_RECEIVE 1
-#define L2CAP_DEFAULT_RETRANS_TO 300 /* 300 milliseconds */
-#define L2CAP_DEFAULT_MONITOR_TO 1000 /* 1 second */
-#define L2CAP_DEFAULT_MAX_RX_APDU 0xfff7
+#define L2CAP_DEFAULT_TX_WINDOW 63
+#define L2CAP_DEFAULT_NUM_TO_ACK (L2CAP_DEFAULT_TX_WINDOW/5)
+#define L2CAP_DEFAULT_MAX_TX 3
+#define L2CAP_DEFAULT_RETRANS_TO 1000 /* 1 second */
+#define L2CAP_DEFAULT_MONITOR_TO 12000 /* 12 seconds */
+#define L2CAP_DEFAULT_MAX_PDU_SIZE 672
#define L2CAP_CONN_TIMEOUT (40000) /* 40 seconds */
#define L2CAP_INFO_TIMEOUT (4000) /* 4 seconds */
@@ -52,6 +54,7 @@ struct l2cap_options {
__u16 imtu;
__u16 flush_to;
__u8 mode;
+ __u8 fcs;
};
#define L2CAP_CONNINFO 0x02
@@ -93,6 +96,32 @@ struct l2cap_conninfo {
#define L2CAP_FCS_NONE 0x00
#define L2CAP_FCS_CRC16 0x01
+/* L2CAP Control Field bit masks */
+#define L2CAP_CTRL_SAR 0xC000
+#define L2CAP_CTRL_REQSEQ 0x3F00
+#define L2CAP_CTRL_TXSEQ 0x007E
+#define L2CAP_CTRL_RETRANS 0x0080
+#define L2CAP_CTRL_FINAL 0x0080
+#define L2CAP_CTRL_POLL 0x0010
+#define L2CAP_CTRL_SUPERVISE 0x000C
+#define L2CAP_CTRL_FRAME_TYPE 0x0001 /* I- or S-Frame */
+
+#define L2CAP_CTRL_TXSEQ_SHIFT 1
+#define L2CAP_CTRL_REQSEQ_SHIFT 8
+#define L2CAP_CTRL_SAR_SHIFT 14
+
+/* L2CAP Supervisory Function */
+#define L2CAP_SUPER_RCV_READY 0x0000
+#define L2CAP_SUPER_REJECT 0x0004
+#define L2CAP_SUPER_RCV_NOT_READY 0x0008
+#define L2CAP_SUPER_SELECT_REJECT 0x000C
+
+/* L2CAP Segmentation and Reassembly */
+#define L2CAP_SDU_UNSEGMENTED 0x0000
+#define L2CAP_SDU_START 0x4000
+#define L2CAP_SDU_END 0x8000
+#define L2CAP_SDU_CONTINUE 0xC000
+
/* L2CAP structures */
struct l2cap_hdr {
__le16 len;
@@ -190,7 +219,7 @@ struct l2cap_conf_rfc {
#define L2CAP_MODE_RETRANS 0x01
#define L2CAP_MODE_FLOWCTL 0x02
#define L2CAP_MODE_ERTM 0x03
-#define L2CAP_MODE_STREAM 0x04
+#define L2CAP_MODE_STREAMING 0x04
struct l2cap_disconn_req {
__le16 dcid;
@@ -261,6 +290,14 @@ struct l2cap_conn {
/* ----- L2CAP channel and socket info ----- */
#define l2cap_pi(sk) ((struct l2cap_pinfo *) sk)
+#define TX_QUEUE(sk) (&l2cap_pi(sk)->tx_queue)
+#define SREJ_QUEUE(sk) (&l2cap_pi(sk)->srej_queue)
+#define SREJ_LIST(sk) (&l2cap_pi(sk)->srej_l.list)
+
+struct srej_list {
+ __u8 tx_seq;
+ struct list_head list;
+};
struct l2cap_pinfo {
struct bt_sock bt;
@@ -271,30 +308,97 @@ struct l2cap_pinfo {
__u16 imtu;
__u16 omtu;
__u16 flush_to;
- __u8 sec_level;
+ __u8 mode;
+ __u8 num_conf_req;
+ __u8 num_conf_rsp;
+
+ __u8 fcs;
+ __u8 sec_level;
__u8 role_switch;
- __u8 force_reliable;
+ __u8 force_reliable;
__u8 conf_req[64];
__u8 conf_len;
__u8 conf_state;
- __u8 conf_retry;
+ __u8 conn_state;
+
+ __u8 next_tx_seq;
+ __u8 expected_ack_seq;
+ __u8 req_seq;
+ __u8 expected_tx_seq;
+ __u8 buffer_seq;
+ __u8 buffer_seq_srej;
+ __u8 srej_save_reqseq;
+ __u8 unacked_frames;
+ __u8 retry_count;
+ __u8 num_to_ack;
+ __u16 sdu_len;
+ __u16 partial_sdu_len;
+ struct sk_buff *sdu;
__u8 ident;
+ __u8 remote_tx_win;
+ __u8 remote_max_tx;
+ __u16 retrans_timeout;
+ __u16 monitor_timeout;
+ __u16 max_pdu_size;
+
__le16 sport;
+ struct timer_list retrans_timer;
+ struct timer_list monitor_timer;
+ struct sk_buff_head tx_queue;
+ struct sk_buff_head srej_queue;
+ struct srej_list srej_l;
struct l2cap_conn *conn;
struct sock *next_c;
struct sock *prev_c;
};
-#define L2CAP_CONF_REQ_SENT 0x01
-#define L2CAP_CONF_INPUT_DONE 0x02
-#define L2CAP_CONF_OUTPUT_DONE 0x04
-#define L2CAP_CONF_CONNECT_PEND 0x80
-
-#define L2CAP_CONF_MAX_RETRIES 2
+#define L2CAP_CONF_REQ_SENT 0x01
+#define L2CAP_CONF_INPUT_DONE 0x02
+#define L2CAP_CONF_OUTPUT_DONE 0x04
+#define L2CAP_CONF_MTU_DONE 0x08
+#define L2CAP_CONF_MODE_DONE 0x10
+#define L2CAP_CONF_CONNECT_PEND 0x20
+#define L2CAP_CONF_NO_FCS_RECV 0x40
+#define L2CAP_CONF_STATE2_DEVICE 0x80
+
+#define L2CAP_CONF_MAX_CONF_REQ 2
+#define L2CAP_CONF_MAX_CONF_RSP 2
+
+#define L2CAP_CONN_SAR_SDU 0x01
+#define L2CAP_CONN_SREJ_SENT 0x02
+#define L2CAP_CONN_WAIT_F 0x04
+#define L2CAP_CONN_SREJ_ACT 0x08
+#define L2CAP_CONN_SEND_PBIT 0x10
+#define L2CAP_CONN_REMOTE_BUSY 0x20
+#define L2CAP_CONN_LOCAL_BUSY 0x40
+
+#define __mod_retrans_timer() mod_timer(&l2cap_pi(sk)->retrans_timer, \
+ jiffies + msecs_to_jiffies(L2CAP_DEFAULT_RETRANS_TO));
+#define __mod_monitor_timer() mod_timer(&l2cap_pi(sk)->monitor_timer, \
+ jiffies + msecs_to_jiffies(L2CAP_DEFAULT_MONITOR_TO));
+
+static inline int l2cap_tx_window_full(struct sock *sk)
+{
+ struct l2cap_pinfo *pi = l2cap_pi(sk);
+ int sub;
+
+ sub = (pi->next_tx_seq - pi->expected_ack_seq) % 64;
+
+ if (sub < 0)
+ sub += 64;
+
+ return (sub == pi->remote_tx_win);
+}
+
+#define __get_txseq(ctrl) ((ctrl) & L2CAP_CTRL_TXSEQ) >> 1
+#define __get_reqseq(ctrl) ((ctrl) & L2CAP_CTRL_REQSEQ) >> 8
+#define __is_iframe(ctrl) !((ctrl) & L2CAP_CTRL_FRAME_TYPE)
+#define __is_sframe(ctrl) (ctrl) & L2CAP_CTRL_FRAME_TYPE
+#define __is_sar_start(ctrl) ((ctrl) & L2CAP_CTRL_SAR) == L2CAP_SDU_START
void l2cap_load(void);
diff --git a/include/net/bluetooth/rfcomm.h b/include/net/bluetooth/rfcomm.h
index c274993234e..921d7b3c7f8 100644
--- a/include/net/bluetooth/rfcomm.h
+++ b/include/net/bluetooth/rfcomm.h
@@ -29,6 +29,7 @@
#define RFCOMM_CONN_TIMEOUT (HZ * 30)
#define RFCOMM_DISC_TIMEOUT (HZ * 20)
#define RFCOMM_AUTH_TIMEOUT (HZ * 25)
+#define RFCOMM_IDLE_TIMEOUT (HZ * 2)
#define RFCOMM_DEFAULT_MTU 127
#define RFCOMM_DEFAULT_CREDITS 7
@@ -154,6 +155,7 @@ struct rfcomm_msc {
struct rfcomm_session {
struct list_head list;
struct socket *sock;
+ struct timer_list timer;
unsigned long state;
unsigned long flags;
atomic_t refcnt;
diff --git a/net/bluetooth/Kconfig b/net/bluetooth/Kconfig
index 59fdb1d2e8e..ed371684c13 100644
--- a/net/bluetooth/Kconfig
+++ b/net/bluetooth/Kconfig
@@ -34,6 +34,7 @@ menuconfig BT
config BT_L2CAP
tristate "L2CAP protocol support"
depends on BT
+ select CRC16
help
L2CAP (Logical Link Control and Adaptation Protocol) provides
connection oriented and connection-less data transport. L2CAP
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index fa47d5d84f5..a9750984f77 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -246,6 +246,8 @@ struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst)
if (hdev->notify)
hdev->notify(hdev, HCI_NOTIFY_CONN_ADD);
+ atomic_set(&conn->devref, 0);
+
hci_conn_init_sysfs(conn);
tasklet_enable(&hdev->tx_task);
@@ -288,7 +290,7 @@ int hci_conn_del(struct hci_conn *conn)
skb_queue_purge(&conn->data_q);
- hci_conn_del_sysfs(conn);
+ hci_conn_put_device(conn);
hci_dev_put(hdev);
@@ -583,6 +585,19 @@ void hci_conn_check_pending(struct hci_dev *hdev)
hci_dev_unlock(hdev);
}
+void hci_conn_hold_device(struct hci_conn *conn)
+{
+ atomic_inc(&conn->devref);
+}
+EXPORT_SYMBOL(hci_conn_hold_device);
+
+void hci_conn_put_device(struct hci_conn *conn)
+{
+ if (atomic_dec_and_test(&conn->devref))
+ hci_conn_del_sysfs(conn);
+}
+EXPORT_SYMBOL(hci_conn_put_device);
+
int hci_get_conn_list(void __user *arg)
{
struct hci_conn_list_req req, *cl;
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 406ad07cdea..e1da8f68759 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -911,7 +911,7 @@ int hci_register_dev(struct hci_dev *hdev)
hdev->reassembly[i] = NULL;
init_waitqueue_head(&hdev->req_wait_q);
- init_MUTEX(&hdev->req_lock);
+ mutex_init(&hdev->req_lock);
inquiry_cache_init(hdev);
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 184ba0a88ec..e99fe385fba 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -887,6 +887,7 @@ static inline void hci_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *s
} else
conn->state = BT_CONNECTED;
+ hci_conn_hold_device(conn);
hci_conn_add_sysfs(conn);
if (test_bit(HCI_AUTH, &hdev->flags))
@@ -1693,6 +1694,7 @@ static inline void hci_sync_conn_complete_evt(struct hci_dev *hdev, struct sk_bu
conn->handle = __le16_to_cpu(ev->handle);
conn->state = BT_CONNECTED;
+ hci_conn_hold_device(conn);
hci_conn_add_sysfs(conn);
break;
diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c
index b18676870d5..09bedeb5579 100644
--- a/net/bluetooth/hidp/core.c
+++ b/net/bluetooth/hidp/core.c
@@ -40,6 +40,7 @@
#include <linux/input.h>
#include <linux/hid.h>
+#include <linux/hidraw.h>
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
@@ -92,10 +93,14 @@ static void __hidp_link_session(struct hidp_session *session)
{
__module_get(THIS_MODULE);
list_add(&session->list, &hidp_session_list);
+
+ hci_conn_hold_device(session->conn);
}
static void __hidp_unlink_session(struct hidp_session *session)
{
+ hci_conn_put_device(session->conn);
+
list_del(&session->list);
module_put(THIS_MODULE);
}
@@ -374,6 +379,7 @@ static void hidp_process_hid_control(struct hidp_session *session,
/* Kill session thread */
atomic_inc(&session->terminate);
+ hidp_schedule(session);
}
}
@@ -573,7 +579,11 @@ static int hidp_session(void *arg)
if (session->hid) {
if (session->hid->claimed & HID_CLAIMED_INPUT)
hidinput_disconnect(session->hid);
+ if (session->hid->claimed & HID_CLAIMED_HIDRAW)
+ hidraw_disconnect(session->hid);
+
hid_destroy_device(session->hid);
+ session->hid = NULL;
}
/* Wakeup user-space polling for socket errors */
@@ -601,25 +611,27 @@ static struct device *hidp_get_device(struct hidp_session *session)
{
bdaddr_t *src = &bt_sk(session->ctrl_sock->sk)->src;
bdaddr_t *dst = &bt_sk(session->ctrl_sock->sk)->dst;
+ struct device *device = NULL;
struct hci_dev *hdev;
- struct hci_conn *conn;
hdev = hci_get_route(dst, src);
if (!hdev)
return NULL;
- conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, dst);
+ session->conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, dst);
+ if (session->conn)
+ device = &session->conn->dev;
hci_dev_put(hdev);
- return conn ? &conn->dev : NULL;
+ return device;
}
static int hidp_setup_input(struct hidp_session *session,
struct hidp_connadd_req *req)
{
struct input_dev *input;
- int i;
+ int err, i;
input = input_allocate_device();
if (!input)
@@ -666,7 +678,13 @@ static int hidp_setup_input(struct hidp_session *session,
input->event = hidp_input_event;
- return input_register_device(input);
+ err = input_register_device(input);
+ if (err < 0) {
+ hci_conn_put_device(session->conn);
+ return err;
+ }
+
+ return 0;
}
static int hidp_open(struct hid_device *hid)
@@ -748,13 +766,11 @@ static int hidp_setup_hid(struct hidp_session *session,
{
struct hid_device *hid;
bdaddr_t src, dst;
- int ret;
+ int err;
hid = hid_allocate_device();
- if (IS_ERR(hid)) {
- ret = PTR_ERR(session->hid);
- goto err;
- }
+ if (IS_ERR(hid))
+ return PTR_ERR(session->hid);
session->hid = hid;
session->req = req;
@@ -776,16 +792,17 @@ static int hidp_setup_hid(struct hidp_session *session,
hid->dev.parent = hidp_get_device(session);
hid->ll_driver = &hidp_hid_driver;
- ret = hid_add_device(hid);
- if (ret)
- goto err_hid;
+ err = hid_add_device(hid);
+ if (err < 0)
+ goto failed;
return 0;
-err_hid:
+
+failed:
hid_destroy_device(hid);
session->hid = NULL;
-err:
- return ret;
+
+ return err;
}
int hidp_add_connection(struct hidp_connadd_req *req, struct socket *ctrl_sock, struct socket *intr_sock)
@@ -835,13 +852,13 @@ int hidp_add_connection(struct hidp_connadd_req *req, struct socket *ctrl_sock,
if (req->rd_size > 0) {
err = hidp_setup_hid(session, req);
if (err && err != -ENODEV)
- goto err_skb;
+ goto purge;
}
if (!session->hid) {
err = hidp_setup_input(session, req);
if (err < 0)
- goto err_skb;
+ goto purge;
}
__hidp_link_session(session);
@@ -869,13 +886,20 @@ unlink:
__hidp_unlink_session(session);
- if (session->input)
+ if (session->input) {
input_unregister_device(session->input);
- if (session->hid)
+ session->input = NULL;
+ }
+
+ if (session->hid) {
hid_destroy_device(session->hid);
-err_skb:
+ session->hid = NULL;
+ }
+
+purge:
skb_queue_purge(&session->ctrl_transmit);
skb_queue_purge(&session->intr_transmit);
+
failed:
up_write(&hidp_session_sem);
diff --git a/net/bluetooth/hidp/hidp.h b/net/bluetooth/hidp/hidp.h
index e503c89057a..faf3d74c358 100644
--- a/net/bluetooth/hidp/hidp.h
+++ b/net/bluetooth/hidp/hidp.h
@@ -126,6 +126,8 @@ int hidp_get_conninfo(struct hidp_conninfo *ci);
struct hidp_session {
struct list_head list;
+ struct hci_conn *conn;
+
struct socket *ctrl_sock;
struct socket *intr_sock;
diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index bd0a4c1bced..b0301256464 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -41,6 +41,7 @@
#include <linux/list.h>
#include <linux/device.h>
#include <linux/uaccess.h>
+#include <linux/crc16.h>
#include <net/sock.h>
#include <asm/system.h>
@@ -50,7 +51,9 @@
#include <net/bluetooth/hci_core.h>
#include <net/bluetooth/l2cap.h>
-#define VERSION "2.13"
+#define VERSION "2.14"
+
+static int enable_ertm = 0;
static u32 l2cap_feat_mask = L2CAP_FEAT_FIXED_CHAN;
static u8 l2cap_fixed_chan[8] = { 0x02, };
@@ -331,6 +334,48 @@ static inline int l2cap_send_cmd(struct l2cap_conn *conn, u8 ident, u8 code, u16
return hci_send_acl(conn->hcon, skb, 0);
}
+static inline int l2cap_send_sframe(struct l2cap_pinfo *pi, u16 control)
+{
+ struct sk_buff *skb;
+ struct l2cap_hdr *lh;
+ struct l2cap_conn *conn = pi->conn;
+ int count, hlen = L2CAP_HDR_SIZE + 2;
+
+ if (pi->fcs == L2CAP_FCS_CRC16)
+ hlen += 2;
+
+ BT_DBG("pi %p, control 0x%2.2x", pi, control);
+
+ count = min_t(unsigned int, conn->mtu, hlen);
+ control |= L2CAP_CTRL_FRAME_TYPE;
+
+ skb = bt_skb_alloc(count, GFP_ATOMIC);
+ if (!skb)
+ return -ENOMEM;
+
+ lh = (struct l2cap_hdr *) skb_put(skb, L2CAP_HDR_SIZE);
+ lh->len = cpu_to_le16(hlen - L2CAP_HDR_SIZE);
+ lh->cid = cpu_to_le16(pi->dcid);
+ put_unaligned_le16(control, skb_put(skb, 2));
+
+ if (pi->fcs == L2CAP_FCS_CRC16) {
+ u16 fcs = crc16(0, (u8 *)lh, count - 2);
+ put_unaligned_le16(fcs, skb_put(skb, 2));
+ }
+
+ return hci_send_acl(pi->conn->hcon, skb, 0);
+}
+
+static inline int l2cap_send_rr_or_rnr(struct l2cap_pinfo *pi, u16 control)
+{
+ if (pi->conn_state & L2CAP_CONN_LOCAL_BUSY)
+ control |= L2CAP_SUPER_RCV_NOT_READY;
+ else
+ control |= L2CAP_SUPER_RCV_READY;
+
+ return l2cap_send_sframe(pi, control);
+}
+
static void l2cap_do_start(struct sock *sk)
{
struct l2cap_conn *conn = l2cap_pi(sk)->conn;
@@ -364,6 +409,16 @@ static void l2cap_do_start(struct sock *sk)
}
}
+static void l2cap_send_disconn_req(struct l2cap_conn *conn, struct sock *sk)
+{
+ struct l2cap_disconn_req req;
+
+ req.dcid = cpu_to_le16(l2cap_pi(sk)->dcid);
+ req.scid = cpu_to_le16(l2cap_pi(sk)->scid);
+ l2cap_send_cmd(conn, l2cap_get_ident(conn),
+ L2CAP_DISCONN_REQ, sizeof(req), &req);
+}
+
/* ---- L2CAP connections ---- */
static void l2cap_conn_start(struct l2cap_conn *conn)
{
@@ -648,15 +703,10 @@ static void __l2cap_sock_close(struct sock *sk, int reason)
case BT_CONFIG:
if (sk->sk_type == SOCK_SEQPACKET) {
struct l2cap_conn *conn = l2cap_pi(sk)->conn;
- struct l2cap_disconn_req req;
sk->sk_state = BT_DISCONN;
l2cap_sock_set_timer(sk, sk->sk_sndtimeo);
-
- req.dcid = cpu_to_le16(l2cap_pi(sk)->dcid);
- req.scid = cpu_to_le16(l2cap_pi(sk)->scid);
- l2cap_send_cmd(conn, l2cap_get_ident(conn),
- L2CAP_DISCONN_REQ, sizeof(req), &req);
+ l2cap_send_disconn_req(conn, sk);
} else
l2cap_chan_del(sk, reason);
break;
@@ -715,12 +765,16 @@ static void l2cap_sock_init(struct sock *sk, struct sock *parent)
pi->imtu = l2cap_pi(parent)->imtu;
pi->omtu = l2cap_pi(parent)->omtu;
+ pi->mode = l2cap_pi(parent)->mode;
+ pi->fcs = l2cap_pi(parent)->fcs;
pi->sec_level = l2cap_pi(parent)->sec_level;
pi->role_switch = l2cap_pi(parent)->role_switch;
pi->force_reliable = l2cap_pi(parent)->force_reliable;
} else {
pi->imtu = L2CAP_DEFAULT_MTU;
pi->omtu = 0;
+ pi->mode = L2CAP_MODE_BASIC;
+ pi->fcs = L2CAP_FCS_CRC16;
pi->sec_level = BT_SECURITY_LOW;
pi->role_switch = 0;
pi->force_reliable = 0;
@@ -956,6 +1010,19 @@ static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr, int al
goto done;
}
+ switch (l2cap_pi(sk)->mode) {
+ case L2CAP_MODE_BASIC:
+ break;
+ case L2CAP_MODE_ERTM:
+ case L2CAP_MODE_STREAMING:
+ if (enable_ertm)
+ break;
+ /* fall through */
+ default:
+ err = -ENOTSUPP;
+ goto done;
+ }
+
switch (sk->sk_state) {
case BT_CONNECT:
case BT_CONNECT2:
@@ -1007,6 +1074,19 @@ static int l2cap_sock_listen(struct socket *sock, int backlog)
goto done;
}
+ switch (l2cap_pi(sk)->mode) {
+ case L2CAP_MODE_BASIC:
+ break;
+ case L2CAP_MODE_ERTM:
+ case L2CAP_MODE_STREAMING:
+ if (enable_ertm)
+ break;
+ /* fall through */
+ default:
+ err = -ENOTSUPP;
+ goto done;
+ }
+
if (!l2cap_pi(sk)->psm) {
bdaddr_t *src = &bt_sk(sk)->src;
u16 psm;
@@ -1117,39 +1197,219 @@ static int l2cap_sock_getname(struct socket *sock, struct sockaddr *addr, int *l
return 0;
}
-static inline int l2cap_do_send(struct sock *sk, struct msghdr *msg, int len)
+static void l2cap_monitor_timeout(unsigned long arg)
{
- struct l2cap_conn *conn = l2cap_pi(sk)->conn;
- struct sk_buff *skb, **frag;
- int err, hlen, count, sent = 0;
- struct l2cap_hdr *lh;
+ struct sock *sk = (void *) arg;
+ u16 control;
- BT_DBG("sk %p len %d", sk, len);
+ bh_lock_sock(sk);
+ if (l2cap_pi(sk)->retry_count >= l2cap_pi(sk)->remote_max_tx) {
+ l2cap_send_disconn_req(l2cap_pi(sk)->conn, sk);
+ return;
+ }
- /* First fragment (with L2CAP header) */
- if (sk->sk_type == SOCK_DGRAM)
- hlen = L2CAP_HDR_SIZE + 2;
- else
- hlen = L2CAP_HDR_SIZE;
+ l2cap_pi(sk)->retry_count++;
+ __mod_monitor_timer();
- count = min_t(unsigned int, (conn->mtu - hlen), len);
+ control = L2CAP_CTRL_POLL;
+ l2cap_send_rr_or_rnr(l2cap_pi(sk), control);
+ bh_unlock_sock(sk);
+}
- skb = bt_skb_send_alloc(sk, hlen + count,
- msg->msg_flags & MSG_DONTWAIT, &err);
- if (!skb)
- return err;
+static void l2cap_retrans_timeout(unsigned long arg)
+{
+ struct sock *sk = (void *) arg;
+ u16 control;
- /* Create L2CAP header */
- lh = (struct l2cap_hdr *) skb_put(skb, L2CAP_HDR_SIZE);
- lh->cid = cpu_to_le16(l2cap_pi(sk)->dcid);
- lh->len = cpu_to_le16(len + (hlen - L2CAP_HDR_SIZE));
+ bh_lock_sock(sk);
+ l2cap_pi(sk)->retry_count = 1;
+ __mod_monitor_timer();
+
+ l2cap_pi(sk)->conn_state |= L2CAP_CONN_WAIT_F;
+
+ control = L2CAP_CTRL_POLL;
+ l2cap_send_rr_or_rnr(l2cap_pi(sk), control);
+ bh_unlock_sock(sk);
+}
+
+static void l2cap_drop_acked_frames(struct sock *sk)
+{
+ struct sk_buff *skb;
+
+ while ((skb = skb_peek(TX_QUEUE(sk)))) {
+ if (bt_cb(skb)->tx_seq == l2cap_pi(sk)->expected_ack_seq)
+ break;
+
+ skb = skb_dequeue(TX_QUEUE(sk));
+ kfree_skb(skb);
+
+ l2cap_pi(sk)->unacked_frames--;
+ }
+
+ if (!l2cap_pi(sk)->unacked_frames)
+ del_timer(&l2cap_pi(sk)->retrans_timer);
- if (sk->sk_type == SOCK_DGRAM)
- put_unaligned(l2cap_pi(sk)->psm, (__le16 *) skb_put(skb, 2));
+ return;
+}
+
+static inline int l2cap_do_send(struct sock *sk, struct sk_buff *skb)
+{
+ struct l2cap_pinfo *pi = l2cap_pi(sk);
+ int err;
+
+ BT_DBG("sk %p, skb %p len %d", sk, skb, skb->len);
+
+ err = hci_send_acl(pi->conn->hcon, skb, 0);
+ if (err < 0)
+ kfree_skb(skb);
+
+ return err;
+}
+
+static int l2cap_streaming_send(struct sock *sk)
+{
+ struct sk_buff *skb, *tx_skb;
+ struct l2cap_pinfo *pi = l2cap_pi(sk);
+ u16 control, fcs;
+ int err;
+
+ while ((skb = sk->sk_send_head)) {
+ tx_skb = skb_clone(skb, GFP_ATOMIC);
+
+ control = get_unaligned_le16(tx_skb->data + L2CAP_HDR_SIZE);
+ control |= pi->next_tx_seq << L2CAP_CTRL_TXSEQ_SHIFT;
+ put_unaligned_le16(control, tx_skb->data + L2CAP_HDR_SIZE);
+
+ if (l2cap_pi(sk)->fcs == L2CAP_FCS_CRC16) {
+ fcs = crc16(0, (u8 *)tx_skb->data, tx_skb->len - 2);
+ put_unaligned_le16(fcs, tx_skb->data + tx_skb->len - 2);
+ }
+
+ err = l2cap_do_send(sk, tx_skb);
+ if (err < 0) {
+ l2cap_send_disconn_req(pi->conn, sk);
+ return err;
+ }
+
+ pi->next_tx_seq = (pi->next_tx_seq + 1) % 64;
+
+ if (skb_queue_is_last(TX_QUEUE(sk), skb))
+ sk->sk_send_head = NULL;
+ else
+ sk->sk_send_head = skb_queue_next(TX_QUEUE(sk), skb);
+
+ skb = skb_dequeue(TX_QUEUE(sk));
+ kfree_skb(skb);
+ }
+ return 0;
+}
+
+static int l2cap_retransmit_frame(struct sock *sk, u8 tx_seq)
+{
+ struct l2cap_pinfo *pi = l2cap_pi(sk);
+ struct sk_buff *skb, *tx_skb;
+ u16 control, fcs;
+ int err;
+
+ skb = skb_peek(TX_QUEUE(sk));
+ do {
+ if (bt_cb(skb)->tx_seq != tx_seq) {
+ if (skb_queue_is_last(TX_QUEUE(sk), skb))
+ break;
+ skb = skb_queue_next(TX_QUEUE(sk), skb);
+ continue;
+ }
+
+ if (pi->remote_max_tx &&
+ bt_cb(skb)->retries == pi->remote_max_tx) {
+ l2cap_send_disconn_req(pi->conn, sk);
+ break;
+ }
+
+ tx_skb = skb_clone(skb, GFP_ATOMIC);
+ bt_cb(skb)->retries++;
+ control = get_unaligned_le16(tx_skb->data + L2CAP_HDR_SIZE);
+ control |= (pi->req_seq << L2CAP_CTRL_REQSEQ_SHIFT)
+ | (tx_seq << L2CAP_CTRL_TXSEQ_SHIFT);
+ put_unaligned_le16(control, tx_skb->data + L2CAP_HDR_SIZE);
+
+ if (l2cap_pi(sk)->fcs == L2CAP_FCS_CRC16) {
+ fcs = crc16(0, (u8 *)tx_skb->data, tx_skb->len - 2);
+ put_unaligned_le16(fcs, tx_skb->data + tx_skb->len - 2);
+ }
+
+ err = l2cap_do_send(sk, tx_skb);
+ if (err < 0) {
+ l2cap_send_disconn_req(pi->conn, sk);
+ return err;
+ }
+ break;
+ } while(1);
+ return 0;
+}
+
+static int l2cap_ertm_send(struct sock *sk)
+{
+ struct sk_buff *skb, *tx_skb;
+ struct l2cap_pinfo *pi = l2cap_pi(sk);
+ u16 control, fcs;
+ int err;
+
+ if (pi->conn_state & L2CAP_CONN_WAIT_F)
+ return 0;
+
+ while ((skb = sk->sk_send_head) && (!l2cap_tx_window_full(sk))
+ && !(pi->conn_state & L2CAP_CONN_REMOTE_BUSY)) {
+ tx_skb = skb_clone(skb, GFP_ATOMIC);
+
+ if (pi->remote_max_tx &&
+ bt_cb(skb)->retries == pi->remote_max_tx) {
+ l2cap_send_disconn_req(pi->conn, sk);
+ break;
+ }
+
+ bt_cb(skb)->retries++;
+
+ control = get_unaligned_le16(tx_skb->data + L2CAP_HDR_SIZE);
+ control |= (pi->req_seq << L2CAP_CTRL_REQSEQ_SHIFT)
+ | (pi->next_tx_seq << L2CAP_CTRL_TXSEQ_SHIFT);
+ put_unaligned_le16(control, tx_skb->data + L2CAP_HDR_SIZE);
+
+
+ if (l2cap_pi(sk)->fcs == L2CAP_FCS_CRC16) {
+ fcs = crc16(0, (u8 *)skb->data, tx_skb->len - 2);
+ put_unaligned_le16(fcs, skb->data + tx_skb->len - 2);
+ }
+
+ err = l2cap_do_send(sk, tx_skb);
+ if (err < 0) {
+ l2cap_send_disconn_req(pi->conn, sk);
+ return err;
+ }
+ __mod_retrans_timer();
+
+ bt_cb(skb)->tx_seq = pi->next_tx_seq;
+ pi->next_tx_seq = (pi->next_tx_seq + 1) % 64;
+
+ pi->unacked_frames++;
+
+ if (skb_queue_is_last(TX_QUEUE(sk), skb))
+ sk->sk_send_head = NULL;
+ else
+ sk->sk_send_head = skb_queue_next(TX_QUEUE(sk), skb);
+ }
+
+ return 0;
+}
+
+static inline int l2cap_skbuff_fromiovec(struct sock *sk, struct msghdr *msg, int len, int count, struct sk_buff *skb)
+{
+ struct l2cap_conn *conn = l2cap_pi(sk)->conn;
+ struct sk_buff **frag;
+ int err, sent = 0;
if (memcpy_fromiovec(skb_put(skb, count), msg->msg_iov, count)) {
- err = -EFAULT;
- goto fail;
+ return -EFAULT;
}
sent += count;
@@ -1162,33 +1422,173 @@ static inline int l2cap_do_send(struct sock *sk, struct msghdr *msg, int len)
*frag = bt_skb_send_alloc(sk, count, msg->msg_flags & MSG_DONTWAIT, &err);
if (!*frag)
- goto fail;
-
- if (memcpy_fromiovec(skb_put(*frag, count), msg->msg_iov, count)) {
- err = -EFAULT;
- goto fail;
- }
+ return -EFAULT;
+ if (memcpy_fromiovec(skb_put(*frag, count), msg->msg_iov, count))
+ return -EFAULT;
sent += count;
len -= count;
frag = &(*frag)->next;
}
- err = hci_send_acl(conn->hcon, skb, 0);
- if (err < 0)
- goto fail;
return sent;
+}
-fail:
- kfree_skb(skb);
- return err;
+static struct sk_buff *l2cap_create_connless_pdu(struct sock *sk, struct msghdr *msg, size_t len)
+{
+ struct l2cap_conn *conn = l2cap_pi(sk)->conn;
+ struct sk_buff *skb;
+ int err, count, hlen = L2CAP_HDR_SIZE + 2;
+ struct l2cap_hdr *lh;
+
+ BT_DBG("sk %p len %d", sk, (int)len);
+
+ count = min_t(unsigned int, (conn->mtu - hlen), len);
+ skb = bt_skb_send_alloc(sk, count + hlen,
+ msg->msg_flags & MSG_DONTWAIT, &err);
+ if (!skb)
+ return ERR_PTR(-ENOMEM);
+
+ /* Create L2CAP header */
+ lh = (struct l2cap_hdr *) skb_put(skb, L2CAP_HDR_SIZE);
+ lh->cid = cpu_to_le16(l2cap_pi(sk)->dcid);
+ lh->len = cpu_to_le16(len + (hlen - L2CAP_HDR_SIZE));
+ put_unaligned_le16(l2cap_pi(sk)->psm, skb_put(skb, 2));
+
+ err = l2cap_skbuff_fromiovec(sk, msg, len, count, skb);
+ if (unlikely(err < 0)) {
+ kfree_skb(skb);
+ return ERR_PTR(err);
+ }
+ return skb;
+}
+
+static struct sk_buff *l2cap_create_basic_pdu(struct sock *sk, struct msghdr *msg, size_t len)
+{
+ struct l2cap_conn *conn = l2cap_pi(sk)->conn;
+ struct sk_buff *skb;
+ int err, count, hlen = L2CAP_HDR_SIZE;
+ struct l2cap_hdr *lh;
+
+ BT_DBG("sk %p len %d", sk, (int)len);
+
+ count = min_t(unsigned int, (conn->mtu - hlen), len);
+ skb = bt_skb_send_alloc(sk, count + hlen,
+ msg->msg_flags & MSG_DONTWAIT, &err);
+ if (!skb)
+ return ERR_PTR(-ENOMEM);
+
+ /* Create L2CAP header */
+ lh = (struct l2cap_hdr *) skb_put(skb, L2CAP_HDR_SIZE);
+ lh->cid = cpu_to_le16(l2cap_pi(sk)->dcid);
+ lh->len = cpu_to_le16(len + (hlen - L2CAP_HDR_SIZE));
+
+ err = l2cap_skbuff_fromiovec(sk, msg, len, count, skb);
+ if (unlikely(err < 0)) {
+ kfree_skb(skb);
+ return ERR_PTR(err);
+ }
+ return skb;
+}
+
+static struct sk_buff *l2cap_create_iframe_pdu(struct sock *sk, struct msghdr *msg, size_t len, u16 control, u16 sdulen)
+{
+ struct l2cap_conn *conn = l2cap_pi(sk)->conn;
+ struct sk_buff *skb;
+ int err, count, hlen = L2CAP_HDR_SIZE + 2;
+ struct l2cap_hdr *lh;
+
+ BT_DBG("sk %p len %d", sk, (int)len);
+
+ if (sdulen)
+ hlen += 2;
+
+ if (l2cap_pi(sk)->fcs == L2CAP_FCS_CRC16)
+ hlen += 2;
+
+ count = min_t(unsigned int, (conn->mtu - hlen), len);
+ skb = bt_skb_send_alloc(sk, count + hlen,
+ msg->msg_flags & MSG_DONTWAIT, &err);
+ if (!skb)
+ return ERR_PTR(-ENOMEM);
+
+ /* Create L2CAP header */
+ lh = (struct l2cap_hdr *) skb_put(skb, L2CAP_HDR_SIZE);
+ lh->cid = cpu_to_le16(l2cap_pi(sk)->dcid);
+ lh->len = cpu_to_le16(len + (hlen - L2CAP_HDR_SIZE));
+ put_unaligned_le16(control, skb_put(skb, 2));
+ if (sdulen)
+ put_unaligned_le16(sdulen, skb_put(skb, 2));
+
+ err = l2cap_skbuff_fromiovec(sk, msg, len, count, skb);
+ if (unlikely(err < 0)) {
+ kfree_skb(skb);
+ return ERR_PTR(err);
+ }
+
+ if (l2cap_pi(sk)->fcs == L2CAP_FCS_CRC16)
+ put_unaligned_le16(0, skb_put(skb, 2));
+
+ bt_cb(skb)->retries = 0;
+ return skb;
+}
+
+static inline int l2cap_sar_segment_sdu(struct sock *sk, struct msghdr *msg, size_t len)
+{
+ struct l2cap_pinfo *pi = l2cap_pi(sk);
+ struct sk_buff *skb;
+ struct sk_buff_head sar_queue;
+ u16 control;
+ size_t size = 0;
+
+ __skb_queue_head_init(&sar_queue);
+ control = L2CAP_SDU_START;
+ skb = l2cap_create_iframe_pdu(sk, msg, pi->max_pdu_size, control, len);
+ if (IS_ERR(skb))
+ return PTR_ERR(skb);
+
+ __skb_queue_tail(&sar_queue, skb);
+ len -= pi->max_pdu_size;
+ size +=pi->max_pdu_size;
+ control = 0;
+
+ while (len > 0) {
+ size_t buflen;
+
+ if (len > pi->max_pdu_size) {
+ control |= L2CAP_SDU_CONTINUE;
+ buflen = pi->max_pdu_size;
+ } else {
+ control |= L2CAP_SDU_END;
+ buflen = len;
+ }
+
+ skb = l2cap_create_iframe_pdu(sk, msg, buflen, control, 0);
+ if (IS_ERR(skb)) {
+ skb_queue_purge(&sar_queue);
+ return PTR_ERR(skb);
+ }
+
+ __skb_queue_tail(&sar_queue, skb);
+ len -= buflen;
+ size += buflen;
+ control = 0;
+ }
+ skb_queue_splice_tail(&sar_queue, TX_QUEUE(sk));
+ if (sk->sk_send_head == NULL)
+ sk->sk_send_head = sar_queue.next;
+
+ return size;
}
static int l2cap_sock_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, size_t len)
{
struct sock *sk = sock->sk;
- int err = 0;
+ struct l2cap_pinfo *pi = l2cap_pi(sk);
+ struct sk_buff *skb;
+ u16 control;
+ int err;
BT_DBG("sock %p, sk %p", sock, sk);
@@ -1200,16 +1600,73 @@ static int l2cap_sock_sendmsg(struct kiocb *iocb, struct socket *sock, struct ms
return -EOPNOTSUPP;
/* Check outgoing MTU */
- if (sk->sk_type != SOCK_RAW && len > l2cap_pi(sk)->omtu)
+ if (sk->sk_type == SOCK_SEQPACKET && pi->mode == L2CAP_MODE_BASIC
+ && len > pi->omtu)
return -EINVAL;
lock_sock(sk);
- if (sk->sk_state == BT_CONNECTED)
- err = l2cap_do_send(sk, msg, len);
- else
+ if (sk->sk_state != BT_CONNECTED) {
err = -ENOTCONN;
+ goto done;
+ }
+
+ /* Connectionless channel */
+ if (sk->sk_type == SOCK_DGRAM) {
+ skb = l2cap_create_connless_pdu(sk, msg, len);
+ err = l2cap_do_send(sk, skb);
+ goto done;
+ }
+
+ switch (pi->mode) {
+ case L2CAP_MODE_BASIC:
+ /* Create a basic PDU */
+ skb = l2cap_create_basic_pdu(sk, msg, len);
+ if (IS_ERR(skb)) {
+ err = PTR_ERR(skb);
+ goto done;
+ }
+
+ err = l2cap_do_send(sk, skb);
+ if (!err)
+ err = len;
+ break;
+
+ case L2CAP_MODE_ERTM:
+ case L2CAP_MODE_STREAMING:
+ /* Entire SDU fits into one PDU */
+ if (len <= pi->max_pdu_size) {
+ control = L2CAP_SDU_UNSEGMENTED;
+ skb = l2cap_create_iframe_pdu(sk, msg, len, control, 0);
+ if (IS_ERR(skb)) {
+ err = PTR_ERR(skb);
+ goto done;
+ }
+ __skb_queue_tail(TX_QUEUE(sk), skb);
+ if (sk->sk_send_head == NULL)
+ sk->sk_send_head = skb;
+ } else {
+ /* Segment SDU into multiples PDUs */
+ err = l2cap_sar_segment_sdu(sk, msg, len);
+ if (err < 0)
+ goto done;
+ }
+
+ if (pi->mode == L2CAP_MODE_STREAMING)
+ err = l2cap_streaming_send(sk);
+ else
+ err = l2cap_ertm_send(sk);
+
+ if (!err)
+ err = len;
+ break;
+
+ default:
+ BT_DBG("bad state %1.1x", pi->mode);
+ err = -EINVAL;
+ }
+done:
release_sock(sk);
return err;
}
@@ -1257,7 +1714,8 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, char __us
opts.imtu = l2cap_pi(sk)->imtu;
opts.omtu = l2cap_pi(sk)->omtu;
opts.flush_to = l2cap_pi(sk)->flush_to;
- opts.mode = L2CAP_MODE_BASIC;
+ opts.mode = l2cap_pi(sk)->mode;
+ opts.fcs = l2cap_pi(sk)->fcs;
len = min_t(unsigned int, sizeof(opts), optlen);
if (copy_from_user((char *) &opts, optval, len)) {
@@ -1265,8 +1723,10 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, char __us
break;
}
- l2cap_pi(sk)->imtu = opts.imtu;
- l2cap_pi(sk)->omtu = opts.omtu;
+ l2cap_pi(sk)->imtu = opts.imtu;
+ l2cap_pi(sk)->omtu = opts.omtu;
+ l2cap_pi(sk)->mode = opts.mode;
+ l2cap_pi(sk)->fcs = opts.fcs;
break;
case L2CAP_LM:
@@ -1379,7 +1839,8 @@ static int l2cap_sock_getsockopt_old(struct socket *sock, int optname, char __us
opts.imtu = l2cap_pi(sk)->imtu;
opts.omtu = l2cap_pi(sk)->omtu;
opts.flush_to = l2cap_pi(sk)->flush_to;
- opts.mode = L2CAP_MODE_BASIC;
+ opts.mode = l2cap_pi(sk)->mode;
+ opts.fcs = l2cap_pi(sk)->fcs;
len = min_t(unsigned int, len, sizeof(opts));
if (copy_to_user(optval, (char *) &opts, len))
@@ -1708,16 +2169,108 @@ static void l2cap_add_conf_opt(void **ptr, u8 type, u8 len, unsigned long val)
*ptr += L2CAP_CONF_OPT_SIZE + len;
}
+static int l2cap_mode_supported(__u8 mode, __u32 feat_mask)
+{
+ u32 local_feat_mask = l2cap_feat_mask;
+ if (enable_ertm)
+ local_feat_mask |= L2CAP_FEAT_ERTM | L2CAP_FEAT_STREAMING;
+
+ switch (mode) {
+ case L2CAP_MODE_ERTM:
+ return L2CAP_FEAT_ERTM & feat_mask & local_feat_mask;
+ case L2CAP_MODE_STREAMING:
+ return L2CAP_FEAT_STREAMING & feat_mask & local_feat_mask;
+ default:
+ return 0x00;
+ }
+}
+
+static inline __u8 l2cap_select_mode(__u8 mode, __u16 remote_feat_mask)
+{
+ switch (mode) {
+ case L2CAP_MODE_STREAMING:
+ case L2CAP_MODE_ERTM:
+ if (l2cap_mode_supported(mode, remote_feat_mask))
+ return mode;
+ /* fall through */
+ default:
+ return L2CAP_MODE_BASIC;
+ }
+}
+
static int l2cap_build_conf_req(struct sock *sk, void *data)
{
struct l2cap_pinfo *pi = l2cap_pi(sk);
struct l2cap_conf_req *req = data;
+ struct l2cap_conf_rfc rfc = { .mode = L2CAP_MODE_ERTM };
void *ptr = req->data;
BT_DBG("sk %p", sk);
- if (pi->imtu != L2CAP_DEFAULT_MTU)
- l2cap_add_conf_opt(&ptr, L2CAP_CONF_MTU, 2, pi->imtu);
+ if (pi->num_conf_req || pi->num_conf_rsp)
+ goto done;
+
+ switch (pi->mode) {
+ case L2CAP_MODE_STREAMING:
+ case L2CAP_MODE_ERTM:
+ pi->conf_state |= L2CAP_CONF_STATE2_DEVICE;
+ if (!l2cap_mode_supported(pi->mode, pi->conn->feat_mask))
+ l2cap_send_disconn_req(pi->conn, sk);
+ break;
+ default:
+ pi->mode = l2cap_select_mode(rfc.mode, pi->conn->feat_mask);
+ break;
+ }
+
+done:
+ switch (pi->mode) {
+ case L2CAP_MODE_BASIC:
+ if (pi->imtu != L2CAP_DEFAULT_MTU)
+ l2cap_add_conf_opt(&ptr, L2CAP_CONF_MTU, 2, pi->imtu);
+ break;
+
+ case L2CAP_MODE_ERTM:
+ rfc.mode = L2CAP_MODE_ERTM;
+ rfc.txwin_size = L2CAP_DEFAULT_TX_WINDOW;
+ rfc.max_transmit = L2CAP_DEFAULT_MAX_TX;
+ rfc.retrans_timeout = 0;
+ rfc.monitor_timeout = 0;
+ rfc.max_pdu_size = cpu_to_le16(L2CAP_DEFAULT_MAX_PDU_SIZE);
+
+ l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC,
+ sizeof(rfc), (unsigned long) &rfc);
+
+ if (!(pi->conn->feat_mask & L2CAP_FEAT_FCS))
+ break;
+
+ if (pi->fcs == L2CAP_FCS_NONE ||
+ pi->conf_state & L2CAP_CONF_NO_FCS_RECV) {
+ pi->fcs = L2CAP_FCS_NONE;
+ l2cap_add_conf_opt(&ptr, L2CAP_CONF_FCS, 1, pi->fcs);
+ }
+ break;
+
+ case L2CAP_MODE_STREAMING:
+ rfc.mode = L2CAP_MODE_STREAMING;
+ rfc.txwin_size = 0;
+ rfc.max_transmit = 0;
+ rfc.retrans_timeout = 0;
+ rfc.monitor_timeout = 0;
+ rfc.max_pdu_size = cpu_to_le16(L2CAP_DEFAULT_MAX_PDU_SIZE);
+
+ l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC,
+ sizeof(rfc), (unsigned long) &rfc);
+
+ if (!(pi->conn->feat_mask & L2CAP_FEAT_FCS))
+ break;
+
+ if (pi->fcs == L2CAP_FCS_NONE ||
+ pi->conf_state & L2CAP_CONF_NO_FCS_RECV) {
+ pi->fcs = L2CAP_FCS_NONE;
+ l2cap_add_conf_opt(&ptr, L2CAP_CONF_FCS, 1, pi->fcs);
+ }
+ break;
+ }
/* FIXME: Need actual value of the flush timeout */
//if (flush_to != L2CAP_DEFAULT_FLUSH_TO)
@@ -1767,6 +2320,12 @@ static int l2cap_parse_conf_req(struct sock *sk, void *data)
memcpy(&rfc, (void *) val, olen);
break;
+ case L2CAP_CONF_FCS:
+ if (val == L2CAP_FCS_NONE)
+ pi->conf_state |= L2CAP_CONF_NO_FCS_RECV;
+
+ break;
+
default:
if (hint)
break;
@@ -1777,30 +2336,83 @@ static int l2cap_parse_conf_req(struct sock *sk, void *data)
}
}
+ if (pi->num_conf_rsp || pi->num_conf_req)
+ goto done;
+
+ switch (pi->mode) {
+ case L2CAP_MODE_STREAMING:
+ case L2CAP_MODE_ERTM:
+ pi->conf_state |= L2CAP_CONF_STATE2_DEVICE;
+ if (!l2cap_mode_supported(pi->mode, pi->conn->feat_mask))
+ return -ECONNREFUSED;
+ break;
+ default:
+ pi->mode = l2cap_select_mode(rfc.mode, pi->conn->feat_mask);
+ break;
+ }
+
+done:
+ if (pi->mode != rfc.mode) {
+ result = L2CAP_CONF_UNACCEPT;
+ rfc.mode = pi->mode;
+
+ if (pi->num_conf_rsp == 1)
+ return -ECONNREFUSED;
+
+ l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC,
+ sizeof(rfc), (unsigned long) &rfc);
+ }
+
+
if (result == L2CAP_CONF_SUCCESS) {
/* Configure output options and let the other side know
* which ones we don't like. */
- if (rfc.mode == L2CAP_MODE_BASIC) {
- if (mtu < pi->omtu)
- result = L2CAP_CONF_UNACCEPT;
- else {
- pi->omtu = mtu;
- pi->conf_state |= L2CAP_CONF_OUTPUT_DONE;
- }
+ if (mtu < L2CAP_DEFAULT_MIN_MTU)
+ result = L2CAP_CONF_UNACCEPT;
+ else {
+ pi->omtu = mtu;
+ pi->conf_state |= L2CAP_CONF_MTU_DONE;
+ }
+ l2cap_add_conf_opt(&ptr, L2CAP_CONF_MTU, 2, pi->omtu);
- l2cap_add_conf_opt(&ptr, L2CAP_CONF_MTU, 2, pi->omtu);
- } else {
+ switch (rfc.mode) {
+ case L2CAP_MODE_BASIC:
+ pi->fcs = L2CAP_FCS_NONE;
+ pi->conf_state |= L2CAP_CONF_MODE_DONE;
+ break;
+
+ case L2CAP_MODE_ERTM:
+ pi->remote_tx_win = rfc.txwin_size;
+ pi->remote_max_tx = rfc.max_transmit;
+ pi->max_pdu_size = rfc.max_pdu_size;
+
+ rfc.retrans_timeout = L2CAP_DEFAULT_RETRANS_TO;
+ rfc.monitor_timeout = L2CAP_DEFAULT_MONITOR_TO;
+
+ pi->conf_state |= L2CAP_CONF_MODE_DONE;
+ break;
+
+ case L2CAP_MODE_STREAMING:
+ pi->remote_tx_win = rfc.txwin_size;
+ pi->max_pdu_size = rfc.max_pdu_size;
+
+ pi->conf_state |= L2CAP_CONF_MODE_DONE;
+ break;
+
+ default:
result = L2CAP_CONF_UNACCEPT;
memset(&rfc, 0, sizeof(rfc));
- rfc.mode = L2CAP_MODE_BASIC;
-
- l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC,
- sizeof(rfc), (unsigned long) &rfc);
+ rfc.mode = pi->mode;
}
- }
+ l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC,
+ sizeof(rfc), (unsigned long) &rfc);
+
+ if (result == L2CAP_CONF_SUCCESS)
+ pi->conf_state |= L2CAP_CONF_OUTPUT_DONE;
+ }
rsp->scid = cpu_to_le16(pi->dcid);
rsp->result = cpu_to_le16(result);
rsp->flags = cpu_to_le16(0x0000);
@@ -1808,6 +2420,73 @@ static int l2cap_parse_conf_req(struct sock *sk, void *data)
return ptr - data;
}
+static int l2cap_parse_conf_rsp(struct sock *sk, void *rsp, int len, void *data, u16 *result)
+{
+ struct l2cap_pinfo *pi = l2cap_pi(sk);
+ struct l2cap_conf_req *req = data;
+ void *ptr = req->data;
+ int type, olen;
+ unsigned long val;
+ struct l2cap_conf_rfc rfc;
+
+ BT_DBG("sk %p, rsp %p, len %d, req %p", sk, rsp, len, data);
+
+ while (len >= L2CAP_CONF_OPT_SIZE) {
+ len -= l2cap_get_conf_opt(&rsp, &type, &olen, &val);
+
+ switch (type) {
+ case L2CAP_CONF_MTU:
+ if (val < L2CAP_DEFAULT_MIN_MTU) {
+ *result = L2CAP_CONF_UNACCEPT;
+ pi->omtu = L2CAP_DEFAULT_MIN_MTU;
+ } else
+ pi->omtu = val;
+ l2cap_add_conf_opt(&ptr, L2CAP_CONF_MTU, 2, pi->omtu);
+ break;
+
+ case L2CAP_CONF_FLUSH_TO:
+ pi->flush_to = val;
+ l2cap_add_conf_opt(&ptr, L2CAP_CONF_FLUSH_TO,
+ 2, pi->flush_to);
+ break;
+
+ case L2CAP_CONF_RFC:
+ if (olen == sizeof(rfc))
+ memcpy(&rfc, (void *)val, olen);
+
+ if ((pi->conf_state & L2CAP_CONF_STATE2_DEVICE) &&
+ rfc.mode != pi->mode)
+ return -ECONNREFUSED;
+
+ pi->mode = rfc.mode;
+ pi->fcs = 0;
+
+ l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC,
+ sizeof(rfc), (unsigned long) &rfc);
+ break;
+ }
+ }
+
+ if (*result == L2CAP_CONF_SUCCESS) {
+ switch (rfc.mode) {
+ case L2CAP_MODE_ERTM:
+ pi->remote_tx_win = rfc.txwin_size;
+ pi->retrans_timeout = rfc.retrans_timeout;
+ pi->monitor_timeout = rfc.monitor_timeout;
+ pi->max_pdu_size = le16_to_cpu(rfc.max_pdu_size);
+ break;
+ case L2CAP_MODE_STREAMING:
+ pi->max_pdu_size = le16_to_cpu(rfc.max_pdu_size);
+ break;
+ }
+ }
+
+ req->dcid = cpu_to_le16(pi->dcid);
+ req->flags = cpu_to_le16(0x0000);
+
+ return ptr - data;
+}
+
static int l2cap_build_conf_rsp(struct sock *sk, void *data, u16 result, u16 flags)
{
struct l2cap_conf_rsp *rsp = data;
@@ -1994,6 +2673,7 @@ static inline int l2cap_connect_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hd
l2cap_send_cmd(conn, l2cap_get_ident(conn), L2CAP_CONF_REQ,
l2cap_build_conf_req(sk, req), req);
+ l2cap_pi(sk)->num_conf_req++;
break;
case L2CAP_CR_PEND:
@@ -2052,10 +2732,13 @@ static inline int l2cap_config_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr
/* Complete config. */
len = l2cap_parse_conf_req(sk, rsp);
- if (len < 0)
+ if (len < 0) {
+ l2cap_send_disconn_req(conn, sk);
goto unlock;
+ }
l2cap_send_cmd(conn, cmd->ident, L2CAP_CONF_RSP, len, rsp);
+ l2cap_pi(sk)->num_conf_rsp++;
/* Reset config buffer. */
l2cap_pi(sk)->conf_len = 0;
@@ -2064,7 +2747,22 @@ static inline int l2cap_config_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr
goto unlock;
if (l2cap_pi(sk)->conf_state & L2CAP_CONF_INPUT_DONE) {
+ if (!(l2cap_pi(sk)->conf_state & L2CAP_CONF_NO_FCS_RECV)
+ || l2cap_pi(sk)->fcs != L2CAP_FCS_NONE)
+ l2cap_pi(sk)->fcs = L2CAP_FCS_CRC16;
+
sk->sk_state = BT_CONNECTED;
+ l2cap_pi(sk)->next_tx_seq = 0;
+ l2cap_pi(sk)->expected_ack_seq = 0;
+ l2cap_pi(sk)->unacked_frames = 0;
+
+ setup_timer(&l2cap_pi(sk)->retrans_timer,
+ l2cap_retrans_timeout, (unsigned long) sk);
+ setup_timer(&l2cap_pi(sk)->monitor_timer,
+ l2cap_monitor_timeout, (unsigned long) sk);
+
+ __skb_queue_head_init(TX_QUEUE(sk));
+ __skb_queue_head_init(SREJ_QUEUE(sk));
l2cap_chan_ready(sk);
goto unlock;
}
@@ -2073,6 +2771,7 @@ static inline int l2cap_config_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr
u8 buf[64];
l2cap_send_cmd(conn, l2cap_get_ident(conn), L2CAP_CONF_REQ,
l2cap_build_conf_req(sk, buf), buf);
+ l2cap_pi(sk)->num_conf_req++;
}
unlock:
@@ -2102,29 +2801,32 @@ static inline int l2cap_config_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hdr
break;
case L2CAP_CONF_UNACCEPT:
- if (++l2cap_pi(sk)->conf_retry < L2CAP_CONF_MAX_RETRIES) {
- char req[128];
- /* It does not make sense to adjust L2CAP parameters
- * that are currently defined in the spec. We simply
- * resend config request that we sent earlier. It is
- * stupid, but it helps qualification testing which
- * expects at least some response from us. */
- l2cap_send_cmd(conn, l2cap_get_ident(conn), L2CAP_CONF_REQ,
- l2cap_build_conf_req(sk, req), req);
- goto done;
+ if (l2cap_pi(sk)->num_conf_rsp <= L2CAP_CONF_MAX_CONF_RSP) {
+ int len = cmd->len - sizeof(*rsp);
+ char req[64];
+
+ /* throw out any old stored conf requests */
+ result = L2CAP_CONF_SUCCESS;
+ len = l2cap_parse_conf_rsp(sk, rsp->data,
+ len, req, &result);
+ if (len < 0) {
+ l2cap_send_disconn_req(conn, sk);
+ goto done;
+ }
+
+ l2cap_send_cmd(conn, l2cap_get_ident(conn),
+ L2CAP_CONF_REQ, len, req);
+ l2cap_pi(sk)->num_conf_req++;
+ if (result != L2CAP_CONF_SUCCESS)
+ goto done;
+ break;
}
default:
sk->sk_state = BT_DISCONN;
sk->sk_err = ECONNRESET;
l2cap_sock_set_timer(sk, HZ * 5);
- {
- struct l2cap_disconn_req req;
- req.dcid = cpu_to_le16(l2cap_pi(sk)->dcid);
- req.scid = cpu_to_le16(l2cap_pi(sk)->scid);
- l2cap_send_cmd(conn, l2cap_get_ident(conn),
- L2CAP_DISCONN_REQ, sizeof(req), &req);
- }
+ l2cap_send_disconn_req(conn, sk);
goto done;
}
@@ -2134,7 +2836,16 @@ static inline int l2cap_config_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hdr
l2cap_pi(sk)->conf_state |= L2CAP_CONF_INPUT_DONE;
if (l2cap_pi(sk)->conf_state & L2CAP_CONF_OUTPUT_DONE) {
+ if (!(l2cap_pi(sk)->conf_state & L2CAP_CONF_NO_FCS_RECV)
+ || l2cap_pi(sk)->fcs != L2CAP_FCS_NONE)
+ l2cap_pi(sk)->fcs = L2CAP_FCS_CRC16;
+
sk->sk_state = BT_CONNECTED;
+ l2cap_pi(sk)->expected_tx_seq = 0;
+ l2cap_pi(sk)->buffer_seq = 0;
+ l2cap_pi(sk)->num_to_ack = 0;
+ __skb_queue_head_init(TX_QUEUE(sk));
+ __skb_queue_head_init(SREJ_QUEUE(sk));
l2cap_chan_ready(sk);
}
@@ -2165,6 +2876,11 @@ static inline int l2cap_disconnect_req(struct l2cap_conn *conn, struct l2cap_cmd
sk->sk_shutdown = SHUTDOWN_MASK;
+ skb_queue_purge(TX_QUEUE(sk));
+ skb_queue_purge(SREJ_QUEUE(sk));
+ del_timer(&l2cap_pi(sk)->retrans_timer);
+ del_timer(&l2cap_pi(sk)->monitor_timer);
+
l2cap_chan_del(sk, ECONNRESET);
bh_unlock_sock(sk);
@@ -2187,6 +2903,11 @@ static inline int l2cap_disconnect_rsp(struct l2cap_conn *conn, struct l2cap_cmd
if (!sk)
return 0;
+ skb_queue_purge(TX_QUEUE(sk));
+ skb_queue_purge(SREJ_QUEUE(sk));
+ del_timer(&l2cap_pi(sk)->retrans_timer);
+ del_timer(&l2cap_pi(sk)->monitor_timer);
+
l2cap_chan_del(sk, 0);
bh_unlock_sock(sk);
@@ -2205,10 +2926,14 @@ static inline int l2cap_information_req(struct l2cap_conn *conn, struct l2cap_cm
if (type == L2CAP_IT_FEAT_MASK) {
u8 buf[8];
+ u32 feat_mask = l2cap_feat_mask;
struct l2cap_info_rsp *rsp = (struct l2cap_info_rsp *) buf;
rsp->type = cpu_to_le16(L2CAP_IT_FEAT_MASK);
rsp->result = cpu_to_le16(L2CAP_IR_SUCCESS);
- put_unaligned(cpu_to_le32(l2cap_feat_mask), (__le32 *) rsp->data);
+ if (enable_ertm)
+ feat_mask |= L2CAP_FEAT_ERTM | L2CAP_FEAT_STREAMING
+ | L2CAP_FEAT_FCS;
+ put_unaligned_le32(feat_mask, rsp->data);
l2cap_send_cmd(conn, cmd->ident,
L2CAP_INFO_RSP, sizeof(buf), buf);
} else if (type == L2CAP_IT_FIXED_CHAN) {
@@ -2359,9 +3084,374 @@ static inline void l2cap_sig_channel(struct l2cap_conn *conn, struct sk_buff *sk
kfree_skb(skb);
}
+static int l2cap_check_fcs(struct l2cap_pinfo *pi, struct sk_buff *skb)
+{
+ u16 our_fcs, rcv_fcs;
+ int hdr_size = L2CAP_HDR_SIZE + 2;
+
+ if (pi->fcs == L2CAP_FCS_CRC16) {
+ skb_trim(skb, skb->len - 2);
+ rcv_fcs = get_unaligned_le16(skb->data + skb->len);
+ our_fcs = crc16(0, skb->data - hdr_size, skb->len + hdr_size);
+
+ if (our_fcs != rcv_fcs)
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static void l2cap_add_to_srej_queue(struct sock *sk, struct sk_buff *skb, u8 tx_seq, u8 sar)
+{
+ struct sk_buff *next_skb;
+
+ bt_cb(skb)->tx_seq = tx_seq;
+ bt_cb(skb)->sar = sar;
+
+ next_skb = skb_peek(SREJ_QUEUE(sk));
+ if (!next_skb) {
+ __skb_queue_tail(SREJ_QUEUE(sk), skb);
+ return;
+ }
+
+ do {
+ if (bt_cb(next_skb)->tx_seq > tx_seq) {
+ __skb_queue_before(SREJ_QUEUE(sk), next_skb, skb);
+ return;
+ }
+
+ if (skb_queue_is_last(SREJ_QUEUE(sk), next_skb))
+ break;
+
+ } while((next_skb = skb_queue_next(SREJ_QUEUE(sk), next_skb)));
+
+ __skb_queue_tail(SREJ_QUEUE(sk), skb);
+}
+
+static int l2cap_sar_reassembly_sdu(struct sock *sk, struct sk_buff *skb, u16 control)
+{
+ struct l2cap_pinfo *pi = l2cap_pi(sk);
+ struct sk_buff *_skb;
+ int err = -EINVAL;
+
+ switch (control & L2CAP_CTRL_SAR) {
+ case L2CAP_SDU_UNSEGMENTED:
+ if (pi->conn_state & L2CAP_CONN_SAR_SDU) {
+ kfree_skb(pi->sdu);
+ break;
+ }
+
+ err = sock_queue_rcv_skb(sk, skb);
+ if (!err)
+ return 0;
+
+ break;
+
+ case L2CAP_SDU_START:
+ if (pi->conn_state & L2CAP_CONN_SAR_SDU) {
+ kfree_skb(pi->sdu);
+ break;
+ }
+
+ pi->sdu_len = get_unaligned_le16(skb->data);
+ skb_pull(skb, 2);
+
+ pi->sdu = bt_skb_alloc(pi->sdu_len, GFP_ATOMIC);
+ if (!pi->sdu) {
+ err = -ENOMEM;
+ break;
+ }
+
+ memcpy(skb_put(pi->sdu, skb->len), skb->data, skb->len);
+
+ pi->conn_state |= L2CAP_CONN_SAR_SDU;
+ pi->partial_sdu_len = skb->len;
+ err = 0;
+ break;
+
+ case L2CAP_SDU_CONTINUE:
+ if (!(pi->conn_state & L2CAP_CONN_SAR_SDU))
+ break;
+
+ memcpy(skb_put(pi->sdu, skb->len), skb->data, skb->len);
+
+ pi->partial_sdu_len += skb->len;
+ if (pi->partial_sdu_len > pi->sdu_len)
+ kfree_skb(pi->sdu);
+ else
+ err = 0;
+
+ break;
+
+ case L2CAP_SDU_END:
+ if (!(pi->conn_state & L2CAP_CONN_SAR_SDU))
+ break;
+
+ memcpy(skb_put(pi->sdu, skb->len), skb->data, skb->len);
+
+ pi->conn_state &= ~L2CAP_CONN_SAR_SDU;
+ pi->partial_sdu_len += skb->len;
+
+ if (pi->partial_sdu_len == pi->sdu_len) {
+ _skb = skb_clone(pi->sdu, GFP_ATOMIC);
+ err = sock_queue_rcv_skb(sk, _skb);
+ if (err < 0)
+ kfree_skb(_skb);
+ }
+ kfree_skb(pi->sdu);
+ err = 0;
+
+ break;
+ }
+
+ kfree_skb(skb);
+ return err;
+}
+
+static void l2cap_check_srej_gap(struct sock *sk, u8 tx_seq)
+{
+ struct sk_buff *skb;
+ u16 control = 0;
+
+ while((skb = skb_peek(SREJ_QUEUE(sk)))) {
+ if (bt_cb(skb)->tx_seq != tx_seq)
+ break;
+
+ skb = skb_dequeue(SREJ_QUEUE(sk));
+ control |= bt_cb(skb)->sar << L2CAP_CTRL_SAR_SHIFT;
+ l2cap_sar_reassembly_sdu(sk, skb, control);
+ l2cap_pi(sk)->buffer_seq_srej =
+ (l2cap_pi(sk)->buffer_seq_srej + 1) % 64;
+ tx_seq++;
+ }
+}
+
+static void l2cap_resend_srejframe(struct sock *sk, u8 tx_seq)
+{
+ struct l2cap_pinfo *pi = l2cap_pi(sk);
+ struct srej_list *l, *tmp;
+ u16 control;
+
+ list_for_each_entry_safe(l,tmp, SREJ_LIST(sk), list) {
+ if (l->tx_seq == tx_seq) {
+ list_del(&l->list);
+ kfree(l);
+ return;
+ }
+ control = L2CAP_SUPER_SELECT_REJECT;
+ control |= l->tx_seq << L2CAP_CTRL_REQSEQ_SHIFT;
+ l2cap_send_sframe(pi, control);
+ list_del(&l->list);
+ list_add_tail(&l->list, SREJ_LIST(sk));
+ }
+}
+
+static void l2cap_send_srejframe(struct sock *sk, u8 tx_seq)
+{
+ struct l2cap_pinfo *pi = l2cap_pi(sk);
+ struct srej_list *new;
+ u16 control;
+
+ while (tx_seq != pi->expected_tx_seq) {
+ control = L2CAP_SUPER_SELECT_REJECT;
+ control |= pi->expected_tx_seq << L2CAP_CTRL_REQSEQ_SHIFT;
+ if (pi->conn_state & L2CAP_CONN_SEND_PBIT) {
+ control |= L2CAP_CTRL_POLL;
+ pi->conn_state &= ~L2CAP_CONN_SEND_PBIT;
+ }
+ l2cap_send_sframe(pi, control);
+
+ new = kzalloc(sizeof(struct srej_list), GFP_ATOMIC);
+ new->tx_seq = pi->expected_tx_seq++;
+ list_add_tail(&new->list, SREJ_LIST(sk));
+ }
+ pi->expected_tx_seq++;
+}
+
+static inline int l2cap_data_channel_iframe(struct sock *sk, u16 rx_control, struct sk_buff *skb)
+{
+ struct l2cap_pinfo *pi = l2cap_pi(sk);
+ u8 tx_seq = __get_txseq(rx_control);
+ u16 tx_control = 0;
+ u8 sar = rx_control >> L2CAP_CTRL_SAR_SHIFT;
+ int err = 0;
+
+ BT_DBG("sk %p rx_control 0x%4.4x len %d", sk, rx_control, skb->len);
+
+ if (tx_seq == pi->expected_tx_seq)
+ goto expected;
+
+ if (pi->conn_state & L2CAP_CONN_SREJ_SENT) {
+ struct srej_list *first;
+
+ first = list_first_entry(SREJ_LIST(sk),
+ struct srej_list, list);
+ if (tx_seq == first->tx_seq) {
+ l2cap_add_to_srej_queue(sk, skb, tx_seq, sar);
+ l2cap_check_srej_gap(sk, tx_seq);
+
+ list_del(&first->list);
+ kfree(first);
+
+ if (list_empty(SREJ_LIST(sk))) {
+ pi->buffer_seq = pi->buffer_seq_srej;
+ pi->conn_state &= ~L2CAP_CONN_SREJ_SENT;
+ }
+ } else {
+ struct srej_list *l;
+ l2cap_add_to_srej_queue(sk, skb, tx_seq, sar);
+
+ list_for_each_entry(l, SREJ_LIST(sk), list) {
+ if (l->tx_seq == tx_seq) {
+ l2cap_resend_srejframe(sk, tx_seq);
+ return 0;
+ }
+ }
+ l2cap_send_srejframe(sk, tx_seq);
+ }
+ } else {
+ pi->conn_state |= L2CAP_CONN_SREJ_SENT;
+
+ INIT_LIST_HEAD(SREJ_LIST(sk));
+ pi->buffer_seq_srej = pi->buffer_seq;
+
+ __skb_queue_head_init(SREJ_QUEUE(sk));
+ l2cap_add_to_srej_queue(sk, skb, tx_seq, sar);
+
+ pi->conn_state |= L2CAP_CONN_SEND_PBIT;
+
+ l2cap_send_srejframe(sk, tx_seq);
+ }
+ return 0;
+
+expected:
+ pi->expected_tx_seq = (pi->expected_tx_seq + 1) % 64;
+
+ if (pi->conn_state & L2CAP_CONN_SREJ_SENT) {
+ l2cap_add_to_srej_queue(sk, skb, tx_seq, sar);
+ return 0;
+ }
+
+ pi->buffer_seq = (pi->buffer_seq + 1) % 64;
+
+ err = l2cap_sar_reassembly_sdu(sk, skb, rx_control);
+ if (err < 0)
+ return err;
+
+ pi->num_to_ack = (pi->num_to_ack + 1) % L2CAP_DEFAULT_NUM_TO_ACK;
+ if (pi->num_to_ack == L2CAP_DEFAULT_NUM_TO_ACK - 1) {
+ tx_control |= L2CAP_SUPER_RCV_READY;
+ tx_control |= pi->buffer_seq << L2CAP_CTRL_REQSEQ_SHIFT;
+ l2cap_send_sframe(pi, tx_control);
+ }
+ return 0;
+}
+
+static inline int l2cap_data_channel_sframe(struct sock *sk, u16 rx_control, struct sk_buff *skb)
+{
+ struct l2cap_pinfo *pi = l2cap_pi(sk);
+ u8 tx_seq = __get_reqseq(rx_control);
+
+ BT_DBG("sk %p rx_control 0x%4.4x len %d", sk, rx_control, skb->len);
+
+ switch (rx_control & L2CAP_CTRL_SUPERVISE) {
+ case L2CAP_SUPER_RCV_READY:
+ if (rx_control & L2CAP_CTRL_POLL) {
+ u16 control = L2CAP_CTRL_FINAL;
+ control |= L2CAP_SUPER_RCV_READY |
+ (pi->buffer_seq << L2CAP_CTRL_REQSEQ_SHIFT);
+ l2cap_send_sframe(l2cap_pi(sk), control);
+ pi->conn_state &= ~L2CAP_CONN_REMOTE_BUSY;
+
+ } else if (rx_control & L2CAP_CTRL_FINAL) {
+ pi->conn_state &= ~L2CAP_CONN_REMOTE_BUSY;
+ pi->expected_ack_seq = tx_seq;
+ l2cap_drop_acked_frames(sk);
+
+ if (!(pi->conn_state & L2CAP_CONN_WAIT_F))
+ break;
+
+ pi->conn_state &= ~L2CAP_CONN_WAIT_F;
+ del_timer(&pi->monitor_timer);
+
+ if (pi->unacked_frames > 0)
+ __mod_retrans_timer();
+ } else {
+ pi->expected_ack_seq = tx_seq;
+ l2cap_drop_acked_frames(sk);
+
+ if ((pi->conn_state & L2CAP_CONN_REMOTE_BUSY)
+ && (pi->unacked_frames > 0))
+ __mod_retrans_timer();
+
+ l2cap_ertm_send(sk);
+ pi->conn_state &= ~L2CAP_CONN_REMOTE_BUSY;
+ }
+ break;
+
+ case L2CAP_SUPER_REJECT:
+ pi->conn_state &= ~L2CAP_CONN_REMOTE_BUSY;
+
+ pi->expected_ack_seq = __get_reqseq(rx_control);
+ l2cap_drop_acked_frames(sk);
+
+ sk->sk_send_head = TX_QUEUE(sk)->next;
+ pi->next_tx_seq = pi->expected_ack_seq;
+
+ l2cap_ertm_send(sk);
+
+ break;
+
+ case L2CAP_SUPER_SELECT_REJECT:
+ pi->conn_state &= ~L2CAP_CONN_REMOTE_BUSY;
+
+ if (rx_control & L2CAP_CTRL_POLL) {
+ l2cap_retransmit_frame(sk, tx_seq);
+ pi->expected_ack_seq = tx_seq;
+ l2cap_drop_acked_frames(sk);
+ l2cap_ertm_send(sk);
+ if (pi->conn_state & L2CAP_CONN_WAIT_F) {
+ pi->srej_save_reqseq = tx_seq;
+ pi->conn_state |= L2CAP_CONN_SREJ_ACT;
+ }
+ } else if (rx_control & L2CAP_CTRL_FINAL) {
+ if ((pi->conn_state & L2CAP_CONN_SREJ_ACT) &&
+ pi->srej_save_reqseq == tx_seq)
+ pi->srej_save_reqseq &= ~L2CAP_CONN_SREJ_ACT;
+ else
+ l2cap_retransmit_frame(sk, tx_seq);
+ }
+ else {
+ l2cap_retransmit_frame(sk, tx_seq);
+ if (pi->conn_state & L2CAP_CONN_WAIT_F) {
+ pi->srej_save_reqseq = tx_seq;
+ pi->conn_state |= L2CAP_CONN_SREJ_ACT;
+ }
+ }
+ break;
+
+ case L2CAP_SUPER_RCV_NOT_READY:
+ pi->conn_state |= L2CAP_CONN_REMOTE_BUSY;
+ pi->expected_ack_seq = tx_seq;
+ l2cap_drop_acked_frames(sk);
+
+ del_timer(&l2cap_pi(sk)->retrans_timer);
+ if (rx_control & L2CAP_CTRL_POLL) {
+ u16 control = L2CAP_CTRL_FINAL;
+ l2cap_send_rr_or_rnr(l2cap_pi(sk), control);
+ }
+ break;
+ }
+
+ return 0;
+}
+
static inline int l2cap_data_channel(struct l2cap_conn *conn, u16 cid, struct sk_buff *skb)
{
struct sock *sk;
+ struct l2cap_pinfo *pi;
+ u16 control, len;
+ u8 tx_seq;
+ int err;
sk = l2cap_get_chan_by_scid(&conn->chan_list, cid);
if (!sk) {
@@ -2369,22 +3459,91 @@ static inline int l2cap_data_channel(struct l2cap_conn *conn, u16 cid, struct sk
goto drop;
}
+ pi = l2cap_pi(sk);
+
BT_DBG("sk %p, len %d", sk, skb->len);
if (sk->sk_state != BT_CONNECTED)
goto drop;
- if (l2cap_pi(sk)->imtu < skb->len)
- goto drop;
+ switch (pi->mode) {
+ case L2CAP_MODE_BASIC:
+ /* If socket recv buffers overflows we drop data here
+ * which is *bad* because L2CAP has to be reliable.
+ * But we don't have any other choice. L2CAP doesn't
+ * provide flow control mechanism. */
- /* If socket recv buffers overflows we drop data here
- * which is *bad* because L2CAP has to be reliable.
- * But we don't have any other choice. L2CAP doesn't
- * provide flow control mechanism. */
+ if (pi->imtu < skb->len)
+ goto drop;
+
+ if (!sock_queue_rcv_skb(sk, skb))
+ goto done;
+ break;
+
+ case L2CAP_MODE_ERTM:
+ control = get_unaligned_le16(skb->data);
+ skb_pull(skb, 2);
+ len = skb->len;
+
+ if (__is_sar_start(control))
+ len -= 2;
+
+ if (pi->fcs == L2CAP_FCS_CRC16)
+ len -= 2;
+
+ /*
+ * We can just drop the corrupted I-frame here.
+ * Receiver will miss it and start proper recovery
+ * procedures and ask retransmission.
+ */
+ if (len > L2CAP_DEFAULT_MAX_PDU_SIZE)
+ goto drop;
+
+ if (l2cap_check_fcs(pi, skb))
+ goto drop;
+
+ if (__is_iframe(control))
+ err = l2cap_data_channel_iframe(sk, control, skb);
+ else
+ err = l2cap_data_channel_sframe(sk, control, skb);
+
+ if (!err)
+ goto done;
+ break;
+
+ case L2CAP_MODE_STREAMING:
+ control = get_unaligned_le16(skb->data);
+ skb_pull(skb, 2);
+ len = skb->len;
+
+ if (__is_sar_start(control))
+ len -= 2;
+
+ if (pi->fcs == L2CAP_FCS_CRC16)
+ len -= 2;
+
+ if (len > L2CAP_DEFAULT_MAX_PDU_SIZE || __is_sframe(control))
+ goto drop;
+
+ if (l2cap_check_fcs(pi, skb))
+ goto drop;
+
+ tx_seq = __get_txseq(control);
+
+ if (pi->expected_tx_seq == tx_seq)
+ pi->expected_tx_seq = (pi->expected_tx_seq + 1) % 64;
+ else
+ pi->expected_tx_seq = tx_seq + 1;
+
+ err = l2cap_sar_reassembly_sdu(sk, skb, control);
- if (!sock_queue_rcv_skb(sk, skb))
goto done;
+ default:
+ BT_DBG("sk %p: bad mode 0x%2.2x", sk, l2cap_pi(sk)->mode);
+ break;
+ }
+
drop:
kfree_skb(skb);
@@ -2433,6 +3592,11 @@ static void l2cap_recv_frame(struct l2cap_conn *conn, struct sk_buff *skb)
cid = __le16_to_cpu(lh->cid);
len = __le16_to_cpu(lh->len);
+ if (len != skb->len) {
+ kfree_skb(skb);
+ return;
+ }
+
BT_DBG("len %d, cid 0x%4.4x", len, cid);
switch (cid) {
@@ -2441,7 +3605,7 @@ static void l2cap_recv_frame(struct l2cap_conn *conn, struct sk_buff *skb)
break;
case L2CAP_CID_CONN_LESS:
- psm = get_unaligned((__le16 *) skb->data);
+ psm = get_unaligned_le16(skb->data);
skb_pull(skb, 2);
l2cap_conless_channel(conn, psm, skb);
break;
@@ -2828,6 +3992,9 @@ EXPORT_SYMBOL(l2cap_load);
module_init(l2cap_init);
module_exit(l2cap_exit);
+module_param(enable_ertm, bool, 0644);
+MODULE_PARM_DESC(enable_ertm, "Enable enhanced retransmission mode");
+
MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
MODULE_DESCRIPTION("Bluetooth L2CAP ver " VERSION);
MODULE_VERSION(VERSION);
diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c
index 94b3388c188..25692bc0a34 100644
--- a/net/bluetooth/rfcomm/core.c
+++ b/net/bluetooth/rfcomm/core.c
@@ -244,6 +244,33 @@ static inline int rfcomm_check_security(struct rfcomm_dlc *d)
auth_type);
}
+static void rfcomm_session_timeout(unsigned long arg)
+{
+ struct rfcomm_session *s = (void *) arg;
+
+ BT_DBG("session %p state %ld", s, s->state);
+
+ set_bit(RFCOMM_TIMED_OUT, &s->flags);
+ rfcomm_session_put(s);
+ rfcomm_schedule(RFCOMM_SCHED_TIMEO);
+}
+
+static void rfcomm_session_set_timer(struct rfcomm_session *s, long timeout)
+{
+ BT_DBG("session %p state %ld timeout %ld", s, s->state, timeout);
+
+ if (!mod_timer(&s->timer, jiffies + timeout))
+ rfcomm_session_hold(s);
+}
+
+static void rfcomm_session_clear_timer(struct rfcomm_session *s)
+{
+ BT_DBG("session %p state %ld", s, s->state);
+
+ if (timer_pending(&s->timer) && del_timer(&s->timer))
+ rfcomm_session_put(s);
+}
+
/* ---- RFCOMM DLCs ---- */
static void rfcomm_dlc_timeout(unsigned long arg)
{
@@ -320,6 +347,7 @@ static void rfcomm_dlc_link(struct rfcomm_session *s, struct rfcomm_dlc *d)
rfcomm_session_hold(s);
+ rfcomm_session_clear_timer(s);
rfcomm_dlc_hold(d);
list_add(&d->list, &s->dlcs);
d->session = s;
@@ -335,6 +363,9 @@ static void rfcomm_dlc_unlink(struct rfcomm_dlc *d)
d->session = NULL;
rfcomm_dlc_put(d);
+ if (list_empty(&s->dlcs))
+ rfcomm_session_set_timer(s, RFCOMM_IDLE_TIMEOUT);
+
rfcomm_session_put(s);
}
@@ -567,6 +598,8 @@ static struct rfcomm_session *rfcomm_session_add(struct socket *sock, int state)
BT_DBG("session %p sock %p", s, sock);
+ setup_timer(&s->timer, rfcomm_session_timeout, (unsigned long) s);
+
INIT_LIST_HEAD(&s->dlcs);
s->state = state;
s->sock = sock;
@@ -598,6 +631,7 @@ static void rfcomm_session_del(struct rfcomm_session *s)
if (state == BT_CONNECTED)
rfcomm_send_disc(s, 0);
+ rfcomm_session_clear_timer(s);
sock_release(s->sock);
kfree(s);
@@ -639,6 +673,7 @@ static void rfcomm_session_close(struct rfcomm_session *s, int err)
__rfcomm_dlc_close(d, err);
}
+ rfcomm_session_clear_timer(s);
rfcomm_session_put(s);
}
@@ -1879,6 +1914,12 @@ static inline void rfcomm_process_sessions(void)
struct rfcomm_session *s;
s = list_entry(p, struct rfcomm_session, list);
+ if (test_and_clear_bit(RFCOMM_TIMED_OUT, &s->flags)) {
+ s->state = BT_DISCONN;
+ rfcomm_send_disc(s, 0);
+ continue;
+ }
+
if (s->state == BT_LISTEN) {
rfcomm_accept_connection(s);
continue;
@@ -2080,7 +2121,7 @@ static CLASS_ATTR(rfcomm_dlc, S_IRUGO, rfcomm_dlc_sysfs_show, NULL);
/* ---- Initialization ---- */
static int __init rfcomm_init(void)
{
- int ret;
+ int err;
l2cap_load();
@@ -2088,33 +2129,35 @@ static int __init rfcomm_init(void)
rfcomm_thread = kthread_run(rfcomm_run, NULL, "krfcommd");
if (IS_ERR(rfcomm_thread)) {
- ret = PTR_ERR(rfcomm_thread);
- goto out_thread;
+ err = PTR_ERR(rfcomm_thread);
+ goto unregister;
}
if (class_create_file(bt_class, &class_attr_rfcomm_dlc) < 0)
BT_ERR("Failed to create RFCOMM info file");
- ret = rfcomm_init_ttys();
- if (ret)
- goto out_tty;
+ err = rfcomm_init_ttys();
+ if (err < 0)
+ goto stop;
- ret = rfcomm_init_sockets();
- if (ret)
- goto out_sock;
+ err = rfcomm_init_sockets();
+ if (err < 0)
+ goto cleanup;
BT_INFO("RFCOMM ver %s", VERSION);
return 0;
-out_sock:
+cleanup:
rfcomm_cleanup_ttys();
-out_tty:
+
+stop:
kthread_stop(rfcomm_thread);
-out_thread:
+
+unregister:
hci_unregister_cb(&rfcomm_cb);
- return ret;
+ return err;
}
static void __exit rfcomm_exit(void)
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index 51ae0c3e470..13c27f17192 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -359,20 +359,9 @@ static void sco_sock_kill(struct sock *sk)
sock_put(sk);
}
-/* Close socket.
- * Must be called on unlocked socket.
- */
-static void sco_sock_close(struct sock *sk)
+static void __sco_sock_close(struct sock *sk)
{
- struct sco_conn *conn;
-
- sco_sock_clear_timer(sk);
-
- lock_sock(sk);
-
- conn = sco_pi(sk)->conn;
-
- BT_DBG("sk %p state %d conn %p socket %p", sk, sk->sk_state, conn, sk->sk_socket);
+ BT_DBG("sk %p state %d socket %p", sk, sk->sk_state, sk->sk_socket);
switch (sk->sk_state) {
case BT_LISTEN:
@@ -390,9 +379,15 @@ static void sco_sock_close(struct sock *sk)
sock_set_flag(sk, SOCK_ZAPPED);
break;
}
+}
+/* Must be called on unlocked socket. */
+static void sco_sock_close(struct sock *sk)
+{
+ sco_sock_clear_timer(sk);
+ lock_sock(sk);
+ __sco_sock_close(sk);
release_sock(sk);
-
sco_sock_kill(sk);
}
@@ -748,6 +743,30 @@ static int sco_sock_getsockopt(struct socket *sock, int level, int optname, char
return err;
}
+static int sco_sock_shutdown(struct socket *sock, int how)
+{
+ struct sock *sk = sock->sk;
+ int err = 0;
+
+ BT_DBG("sock %p, sk %p", sock, sk);
+
+ if (!sk)
+ return 0;
+
+ lock_sock(sk);
+ if (!sk->sk_shutdown) {
+ sk->sk_shutdown = SHUTDOWN_MASK;
+ sco_sock_clear_timer(sk);
+ __sco_sock_close(sk);
+
+ if (sock_flag(sk, SOCK_LINGER) && sk->sk_lingertime)
+ err = bt_sock_wait_state(sk, BT_CLOSED,
+ sk->sk_lingertime);
+ }
+ release_sock(sk);
+ return err;
+}
+
static int sco_sock_release(struct socket *sock)
{
struct sock *sk = sock->sk;
@@ -969,7 +988,7 @@ static const struct proto_ops sco_sock_ops = {
.ioctl = bt_sock_ioctl,
.mmap = sock_no_mmap,
.socketpair = sock_no_socketpair,
- .shutdown = sock_no_shutdown,
+ .shutdown = sco_sock_shutdown,
.setsockopt = sco_sock_setsockopt,
.getsockopt = sco_sock_getsockopt
};
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-22 23:39:42 +0000