Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/holtmann/bluetooth-next-2.6

9 files changed, 2514 insertions, 24 deletions

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