ath3k.c revision 84f0e17f78471857104a20dfc57711409f68d7bf
19670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri/* 29670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri * Copyright (c) 2008-2009 Atheros Communications Inc. 39670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri * 49670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri * This program is free software; you can redistribute it and/or modify 59670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri * it under the terms of the GNU General Public License as published by 69670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri * the Free Software Foundation; either version 2 of the License, or 79670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri * (at your option) any later version. 89670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri * 99670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri * This program is distributed in the hope that it will be useful, 109670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri * but WITHOUT ANY WARRANTY; without even the implied warranty of 119670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 129670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri * GNU General Public License for more details. 139670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri * 149670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri * You should have received a copy of the GNU General Public License 159670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri * along with this program; if not, write to the Free Software 169670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 179670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri * 189670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri */ 199670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri 209670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri 219670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri#include <linux/module.h> 229670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri#include <linux/kernel.h> 239670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri#include <linux/init.h> 249670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri#include <linux/slab.h> 259670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri#include <linux/types.h> 269670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri#include <linux/errno.h> 279670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri#include <linux/device.h> 289670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri#include <linux/firmware.h> 299670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri#include <linux/usb.h> 309670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri#include <net/bluetooth/bluetooth.h> 319670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri 329670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri#define VERSION "1.0" 339670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri 349670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri 359670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuristatic struct usb_device_id ath3k_table[] = { 369670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri /* Atheros AR3011 */ 379670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri { USB_DEVICE(0x0CF3, 0x3000) }, 38be93112accb42c5586a459683d71975cc70673caBala Shanmugam 39be93112accb42c5586a459683d71975cc70673caBala Shanmugam /* Atheros AR3011 with sflash firmware*/ 40be93112accb42c5586a459683d71975cc70673caBala Shanmugam { USB_DEVICE(0x0CF3, 0x3002) }, 41be93112accb42c5586a459683d71975cc70673caBala Shanmugam 42509e7861d8a5e26bb07b5a3a13e2b9e442283631Cho, Yu-Chen /* Atheros AR9285 Malbec with sflash firmware */ 43509e7861d8a5e26bb07b5a3a13e2b9e442283631Cho, Yu-Chen { USB_DEVICE(0x03F0, 0x311D) }, 449670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri { } /* Terminating entry */ 459670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri}; 469670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri 479670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram KandukuriMODULE_DEVICE_TABLE(usb, ath3k_table); 489670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri 499670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri#define USB_REQ_DFU_DNLOAD 1 509670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri#define BULK_SIZE 4096 519670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri 5286e09287e4f8c81831b4d4118a48597565f0d21bAlexander Hollerstatic int ath3k_load_firmware(struct usb_device *udev, 5386e09287e4f8c81831b4d4118a48597565f0d21bAlexander Holler const struct firmware *firmware) 549670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri{ 559670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri u8 *send_buf; 569670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri int err, pipe, len, size, sent = 0; 5786e09287e4f8c81831b4d4118a48597565f0d21bAlexander Holler int count = firmware->size; 589670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri 5986e09287e4f8c81831b4d4118a48597565f0d21bAlexander Holler BT_DBG("udev %p", udev); 609670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri 6186e09287e4f8c81831b4d4118a48597565f0d21bAlexander Holler pipe = usb_sndctrlpipe(udev, 0); 629670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri 6386e09287e4f8c81831b4d4118a48597565f0d21bAlexander Holler send_buf = kmalloc(BULK_SIZE, GFP_ATOMIC); 6486e09287e4f8c81831b4d4118a48597565f0d21bAlexander Holler if (!send_buf) { 6586e09287e4f8c81831b4d4118a48597565f0d21bAlexander Holler BT_ERR("Can't allocate memory chunk for firmware"); 6686e09287e4f8c81831b4d4118a48597565f0d21bAlexander Holler return -ENOMEM; 6786e09287e4f8c81831b4d4118a48597565f0d21bAlexander Holler } 6886e09287e4f8c81831b4d4118a48597565f0d21bAlexander Holler 6986e09287e4f8c81831b4d4118a48597565f0d21bAlexander Holler memcpy(send_buf, firmware->data, 20); 7086e09287e4f8c81831b4d4118a48597565f0d21bAlexander Holler if ((err = usb_control_msg(udev, pipe, 719670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri USB_REQ_DFU_DNLOAD, 729670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri USB_TYPE_VENDOR, 0, 0, 7386e09287e4f8c81831b4d4118a48597565f0d21bAlexander Holler send_buf, 20, USB_CTRL_SET_TIMEOUT)) < 0) { 749670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri BT_ERR("Can't change to loading configuration err"); 7586e09287e4f8c81831b4d4118a48597565f0d21bAlexander Holler goto error; 769670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri } 779670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri sent += 20; 789670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri count -= 20; 799670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri 809670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri while (count) { 819670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri size = min_t(uint, count, BULK_SIZE); 8286e09287e4f8c81831b4d4118a48597565f0d21bAlexander Holler pipe = usb_sndbulkpipe(udev, 0x02); 8386e09287e4f8c81831b4d4118a48597565f0d21bAlexander Holler memcpy(send_buf, firmware->data + sent, size); 849670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri 8586e09287e4f8c81831b4d4118a48597565f0d21bAlexander Holler err = usb_bulk_msg(udev, pipe, send_buf, size, 869670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri &len, 3000); 879670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri 889670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri if (err || (len != size)) { 899670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri BT_ERR("Error in firmware loading err = %d," 909670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri "len = %d, size = %d", err, len, size); 919670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri goto error; 929670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri } 939670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri 949670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri sent += size; 959670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri count -= size; 969670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri } 979670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri 989670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri kfree(send_buf); 999670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri return 0; 1009670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri 1019670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukurierror: 1029670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri kfree(send_buf); 1039670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri return err; 1049670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri} 1059670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri 1069670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuristatic int ath3k_probe(struct usb_interface *intf, 1079670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri const struct usb_device_id *id) 1089670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri{ 1099670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri const struct firmware *firmware; 1109670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri struct usb_device *udev = interface_to_usbdev(intf); 11184f0e17f78471857104a20dfc57711409f68d7bfRogério Brito int ret; 1129670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri 1139670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri BT_DBG("intf %p id %p", intf, id); 1149670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri 1159670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri if (intf->cur_altsetting->desc.bInterfaceNumber != 0) 1169670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri return -ENODEV; 1179670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri 1189670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri if (request_firmware(&firmware, "ath3k-1.fw", &udev->dev) < 0) { 1199670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri return -EIO; 1209670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri } 1219670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri 12284f0e17f78471857104a20dfc57711409f68d7bfRogério Brito ret = ath3k_load_firmware(udev, firmware); 12386e09287e4f8c81831b4d4118a48597565f0d21bAlexander Holler release_firmware(firmware); 1249670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri 12584f0e17f78471857104a20dfc57711409f68d7bfRogério Brito return ret; 1269670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri} 1279670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri 1289670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuristatic void ath3k_disconnect(struct usb_interface *intf) 1299670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri{ 1309670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri BT_DBG("ath3k_disconnect intf %p", intf); 1319670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri} 1329670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri 1339670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuristatic struct usb_driver ath3k_driver = { 1349670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri .name = "ath3k", 1359670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri .probe = ath3k_probe, 1369670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri .disconnect = ath3k_disconnect, 1379670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri .id_table = ath3k_table, 1389670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri}; 1399670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri 1409670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuristatic int __init ath3k_init(void) 1419670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri{ 1429670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri BT_INFO("Atheros AR30xx firmware driver ver %s", VERSION); 1439670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri return usb_register(&ath3k_driver); 1449670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri} 1459670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri 1469670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuristatic void __exit ath3k_exit(void) 1479670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri{ 1489670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri usb_deregister(&ath3k_driver); 1499670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri} 1509670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri 1519670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukurimodule_init(ath3k_init); 1529670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukurimodule_exit(ath3k_exit); 1539670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram Kandukuri 1549670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram KandukuriMODULE_AUTHOR("Atheros Communications"); 1559670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram KandukuriMODULE_DESCRIPTION("Atheros AR30xx firmware driver"); 1569670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram KandukuriMODULE_VERSION(VERSION); 1579670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram KandukuriMODULE_LICENSE("GPL"); 1589670d80a9a6e24725c4111bef5d6cc7786ad0dc5Vikram KandukuriMODULE_FIRMWARE("ath3k-1.fw"); 159