From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/drivers/bluetooth/bcm203x.c | 286 +++++++++++++++++++++++++++++++++++++ 1 file changed, 286 insertions(+) create mode 100644 kernel/drivers/bluetooth/bcm203x.c (limited to 'kernel/drivers/bluetooth/bcm203x.c') diff --git a/kernel/drivers/bluetooth/bcm203x.c b/kernel/drivers/bluetooth/bcm203x.c new file mode 100644 index 000000000..364f82b34 --- /dev/null +++ b/kernel/drivers/bluetooth/bcm203x.c @@ -0,0 +1,286 @@ +/* + * + * Broadcom Blutonium firmware driver + * + * Copyright (C) 2003 Maxim Krasnyansky + * Copyright (C) 2003 Marcel Holtmann + * + * + * 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 + +#include +#include +#include +#include +#include +#include + +#include +#include + +#include + +#include + +#define VERSION "1.2" + +static const 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 work_struct work; + atomic_t shutdown; + + 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 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; + + /* use workqueue to have a small delay */ + schedule_work(&data->work); + 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_work(struct work_struct *work) +{ + struct bcm203x_data *data = + container_of(work, struct bcm203x_data, work); + + if (atomic_read(&data->shutdown)) + return; + + if (usb_submit_urb(data->urb, GFP_KERNEL) < 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 (intf->cur_altsetting->desc.bInterfaceNumber != 0) + return -ENODEV; + + data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL); + if (!data) { + BT_ERR("Can't allocate memory for data structure"); + return -ENOMEM; + } + + 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"); + return -ENOMEM; + } + + if (request_firmware(&firmware, "BCM2033-MD.hex", &udev->dev) < 0) { + BT_ERR("Mini driver request failed"); + usb_free_urb(data->urb); + return -EIO; + } + + BT_DBG("minidrv data %p size %zu", 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); + 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); + return -EIO; + } + + BT_DBG("firmware data %p size %zu", firmware->data, firmware->size); + + data->fw_data = kmemdup(firmware->data, firmware->size, GFP_KERNEL); + if (!data->fw_data) { + BT_ERR("Can't allocate memory for firmware image"); + release_firmware(firmware); + usb_free_urb(data->urb); + kfree(data->buffer); + return -ENOMEM; + } + + data->fw_size = firmware->size; + data->fw_sent = 0; + + release_firmware(firmware); + + INIT_WORK(&data->work, bcm203x_work); + + usb_set_intfdata(intf, data); + + /* use workqueue to have a small delay */ + schedule_work(&data->work); + + return 0; +} + +static void bcm203x_disconnect(struct usb_interface *intf) +{ + struct bcm203x_data *data = usb_get_intfdata(intf); + + BT_DBG("intf %p", intf); + + atomic_inc(&data->shutdown); + cancel_work_sync(&data->work); + + usb_kill_urb(data->urb); + + usb_set_intfdata(intf, NULL); + + usb_free_urb(data->urb); + kfree(data->fw_data); + kfree(data->buffer); +} + +static struct usb_driver bcm203x_driver = { + .name = "bcm203x", + .probe = bcm203x_probe, + .disconnect = bcm203x_disconnect, + .id_table = bcm203x_table, + .disable_hub_initiated_lpm = 1, +}; + +module_usb_driver(bcm203x_driver); + +MODULE_AUTHOR("Marcel Holtmann "); +MODULE_DESCRIPTION("Broadcom Blutonium firmware driver ver " VERSION); +MODULE_VERSION(VERSION); +MODULE_LICENSE("GPL"); +MODULE_FIRMWARE("BCM2033-MD.hex"); +MODULE_FIRMWARE("BCM2033-FW.bin"); -- cgit 1.2.3-korg