1 files changed, 314 insertions, 0 deletions

diff --git a/drivers/bluetooth/bcm203x.c b/drivers/bluetooth/bcm203x.c
new file mode 100644
index 000000000000..5fd3e4cb7525
--- /dev/null
+++ b/drivers/bluetooth/bcm203x.c
@@ -0,0 +1,314 @@
+/*
+ *
+ *  Broadcom Blutonium firmware driver
+ *
+ *  Copyright (C) 2003  Maxim Krasnyansky <maxk@qualcomm.com>
+ *  Copyright (C) 2003  Marcel Holtmann <marcel@holtmann.org>
+ *
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/timer.h>
+
+#include <linux/device.h>
+#include <linux/firmware.h>
+
+#include <linux/usb.h>
+
+#include <net/bluetooth/bluetooth.h>
+
+#ifndef CONFIG_BT_HCIBCM203X_DEBUG
+#undef  BT_DBG
+#define BT_DBG(D...)
+#endif
+
+#define VERSION "1.0"
+
+static int ignore = 0;
+
+static struct usb_device_id bcm203x_table[] = {
+        /* Broadcom Blutonium (BCM2033) */
+        { USB_DEVICE(0x0a5c, 0x2033) },
+
+        { }     /* Terminating entry */
+};
+
+MODULE_DEVICE_TABLE(usb, bcm203x_table);
+
+#define BCM203X_ERROR           0
+#define BCM203X_RESET           1
+#define BCM203X_LOAD_MINIDRV    2
+#define BCM203X_SELECT_MEMORY   3
+#define BCM203X_CHECK_MEMORY    4
+#define BCM203X_LOAD_FIRMWARE   5
+#define BCM203X_CHECK_FIRMWARE  6
+
+#define BCM203X_IN_EP           0x81
+#define BCM203X_OUT_EP          0x02
+
+struct bcm203x_data {
+        struct usb_device       *udev;
+
+        unsigned long           state;
+
+        struct timer_list       timer;
+
+        struct urb              *urb;
+        unsigned char           *buffer;
+
+        unsigned char           *fw_data;
+        unsigned int            fw_size;
+        unsigned int            fw_sent;
+};
+
+static void bcm203x_complete(struct urb *urb, struct pt_regs *regs)
+{
+        struct bcm203x_data *data = urb->context;
+        struct usb_device *udev = urb->dev;
+        int len;
+
+        BT_DBG("udev %p urb %p", udev, urb);
+
+        if (urb->status) {
+                BT_ERR("URB failed with status %d", urb->status);
+                data->state = BCM203X_ERROR;
+                return;
+        }
+
+        switch (data->state) {
+        case BCM203X_LOAD_MINIDRV:
+                memcpy(data->buffer, "#", 1);
+
+                usb_fill_bulk_urb(urb, udev, usb_sndbulkpipe(udev, BCM203X_OUT_EP),
+                                data->buffer, 1, bcm203x_complete, data);
+
+                data->state = BCM203X_SELECT_MEMORY;
+
+                mod_timer(&data->timer, jiffies + (HZ / 10));
+                break;
+
+        case BCM203X_SELECT_MEMORY:
+                usb_fill_int_urb(urb, udev, usb_rcvintpipe(udev, BCM203X_IN_EP),
+                                data->buffer, 32, bcm203x_complete, data, 1);
+
+                data->state = BCM203X_CHECK_MEMORY;
+
+                if (usb_submit_urb(data->urb, GFP_ATOMIC) < 0)
+                        BT_ERR("Can't submit URB");
+                break;
+
+        case BCM203X_CHECK_MEMORY:
+                if (data->buffer[0] != '#') {
+                        BT_ERR("Memory select failed");
+                        data->state = BCM203X_ERROR;
+                        break;
+                }
+
+                data->state = BCM203X_LOAD_FIRMWARE;
+
+        case BCM203X_LOAD_FIRMWARE:
+                if (data->fw_sent == data->fw_size) {
+                        usb_fill_int_urb(urb, udev, usb_rcvintpipe(udev, BCM203X_IN_EP),
+                                data->buffer, 32, bcm203x_complete, data, 1);
+
+                        data->state = BCM203X_CHECK_FIRMWARE;
+                } else {
+                        len = min_t(uint, data->fw_size - data->fw_sent, 4096);
+
+                        usb_fill_bulk_urb(urb, udev, usb_sndbulkpipe(udev, BCM203X_OUT_EP),
+                                data->fw_data + data->fw_sent, len, bcm203x_complete, data);
+
+                        data->fw_sent += len;
+                }
+
+                if (usb_submit_urb(data->urb, GFP_ATOMIC) < 0)
+                        BT_ERR("Can't submit URB");
+                break;
+
+        case BCM203X_CHECK_FIRMWARE:
+                if (data->buffer[0] != '.') {
+                        BT_ERR("Firmware loading failed");
+                        data->state = BCM203X_ERROR;
+                        break;
+                }
+
+                data->state = BCM203X_RESET;
+                break;
+        }
+}
+
+static void bcm203x_timer(unsigned long user_data)
+{
+        struct bcm203x_data *data = (struct bcm203x_data *) user_data;
+
+        if (usb_submit_urb(data->urb, GFP_ATOMIC) < 0)
+                BT_ERR("Can't submit URB");
+}
+
+static int bcm203x_probe(struct usb_interface *intf, const struct usb_device_id *id)
+{
+        const struct firmware *firmware;
+        struct usb_device *udev = interface_to_usbdev(intf);
+        struct bcm203x_data *data;
+        int size;
+
+        BT_DBG("intf %p id %p", intf, id);
+
+        if (ignore || (intf->cur_altsetting->desc.bInterfaceNumber != 0))
+                return -ENODEV;
+
+        data = kmalloc(sizeof(*data), GFP_KERNEL);
+        if (!data) {
+                BT_ERR("Can't allocate memory for data structure");
+                return -ENOMEM;
+        }
+
+        memset(data, 0, sizeof(*data));
+
+        data->udev  = udev;
+        data->state = BCM203X_LOAD_MINIDRV;
+
+        data->urb = usb_alloc_urb(0, GFP_KERNEL);
+        if (!data->urb) {
+                BT_ERR("Can't allocate URB");
+                kfree(data);
+                return -ENOMEM;
+        }
+
+        if (request_firmware(&firmware, "BCM2033-MD.hex", &udev->dev) < 0) {
+                BT_ERR("Mini driver request failed");
+                usb_free_urb(data->urb);
+                kfree(data);
+                return -EIO;
+        }
+
+        BT_DBG("minidrv data %p size %d", firmware->data, firmware->size);
+
+        size = max_t(uint, firmware->size, 4096);
+
+        data->buffer = kmalloc(size, GFP_KERNEL);
+        if (!data->buffer) {
+                BT_ERR("Can't allocate memory for mini driver");
+                release_firmware(firmware);
+                usb_free_urb(data->urb);
+                kfree(data);
+                return -ENOMEM;
+        }
+
+        memcpy(data->buffer, firmware->data, firmware->size);
+
+        usb_fill_bulk_urb(data->urb, udev, usb_sndbulkpipe(udev, BCM203X_OUT_EP),
+                        data->buffer, firmware->size, bcm203x_complete, data);
+
+        release_firmware(firmware);
+
+        if (request_firmware(&firmware, "BCM2033-FW.bin", &udev->dev) < 0) {
+                BT_ERR("Firmware request failed");
+                usb_free_urb(data->urb);
+                kfree(data->buffer);
+                kfree(data);
+                return -EIO;
+        }
+
+        BT_DBG("firmware data %p size %d", firmware->data, firmware->size);
+
+        data->fw_data = kmalloc(firmware->size, GFP_KERNEL);
+        if (!data->fw_data) {
+                BT_ERR("Can't allocate memory for firmware image");
+                usb_free_urb(data->urb);
+                kfree(data->buffer);
+                kfree(data);
+                return -ENOMEM;
+        }
+
+        memcpy(data->fw_data, firmware->data, firmware->size);
+        data->fw_size = firmware->size;
+        data->fw_sent = 0;
+
+        release_firmware(firmware);
+
+        init_timer(&data->timer);
+        data->timer.function = bcm203x_timer;
+        data->timer.data = (unsigned long) data;
+
+        usb_set_intfdata(intf, data);
+
+        mod_timer(&data->timer, jiffies + HZ);
+
+        return 0;
+}
+
+static void bcm203x_disconnect(struct usb_interface *intf)
+{
+        struct bcm203x_data *data = usb_get_intfdata(intf);
+
+        BT_DBG("intf %p", intf);
+
+        usb_kill_urb(data->urb);
+
+        usb_set_intfdata(intf, NULL);
+
+        usb_free_urb(data->urb);
+        kfree(data->fw_data);
+        kfree(data->buffer);
+        kfree(data);
+}
+
+static struct usb_driver bcm203x_driver = {
+        .owner          = THIS_MODULE,
+        .name           = "bcm203x",
+        .probe          = bcm203x_probe,
+        .disconnect     = bcm203x_disconnect,
+        .id_table       = bcm203x_table,
+};
+
+static int __init bcm203x_init(void)
+{
+        int err;
+
+        BT_INFO("Broadcom Blutonium firmware driver ver %s", VERSION);
+
+        err = usb_register(&bcm203x_driver);
+        if (err < 0)
+                BT_ERR("Failed to register USB driver");
+
+        return err;
+}
+
+static void __exit bcm203x_exit(void)
+{
+        usb_deregister(&bcm203x_driver);
+}
+
+module_init(bcm203x_init);
+module_exit(bcm203x_exit);
+
+module_param(ignore, bool, 0644);
+MODULE_PARM_DESC(ignore, "Ignore devices from the matching table");
+
+MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
+MODULE_DESCRIPTION("Broadcom Blutonium firmware driver ver " VERSION);
+MODULE_VERSION(VERSION);
+MODULE_LICENSE("GPL");