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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/bluetooth/bcm203x.c | |
download | linux-3.10-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz linux-3.10-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.bz2 linux-3.10-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/bluetooth/bcm203x.c')
-rw-r--r-- | drivers/bluetooth/bcm203x.c | 314 |
1 files changed, 314 insertions, 0 deletions
diff --git a/drivers/bluetooth/bcm203x.c b/drivers/bluetooth/bcm203x.c new file mode 100644 index 00000000000..5fd3e4cb752 --- /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"); |