blob: 41dadacd3d15fe6b1d55760cde2d63f5cd2ac1e5 [file] [log] [blame]
Vikram Kandukuri9670d802010-01-06 19:04:15 +05301/*
2 * Copyright (c) 2008-2009 Atheros Communications Inc.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 *
18 */
19
20
21#include <linux/module.h>
22#include <linux/kernel.h>
23#include <linux/init.h>
24#include <linux/slab.h>
25#include <linux/types.h>
26#include <linux/errno.h>
27#include <linux/device.h>
28#include <linux/firmware.h>
29#include <linux/usb.h>
30#include <net/bluetooth/bluetooth.h>
31
32#define VERSION "1.0"
33
34
35static struct usb_device_id ath3k_table[] = {
36 /* Atheros AR3011 */
37 { USB_DEVICE(0x0CF3, 0x3000) },
Bala Shanmugambe931122010-11-26 17:35:46 +053038
39 /* Atheros AR3011 with sflash firmware*/
40 { USB_DEVICE(0x0CF3, 0x3002) },
41
Cho, Yu-Chen509e7862011-01-26 17:10:59 +080042 /* Atheros AR9285 Malbec with sflash firmware */
43 { USB_DEVICE(0x03F0, 0x311D) },
Vikram Kandukuri9670d802010-01-06 19:04:15 +053044 { } /* Terminating entry */
45};
46
47MODULE_DEVICE_TABLE(usb, ath3k_table);
48
49#define USB_REQ_DFU_DNLOAD 1
50#define BULK_SIZE 4096
51
Alexander Holler86e09282010-11-22 21:09:01 +010052static int ath3k_load_firmware(struct usb_device *udev,
53 const struct firmware *firmware)
Vikram Kandukuri9670d802010-01-06 19:04:15 +053054{
55 u8 *send_buf;
56 int err, pipe, len, size, sent = 0;
Alexander Holler86e09282010-11-22 21:09:01 +010057 int count = firmware->size;
Vikram Kandukuri9670d802010-01-06 19:04:15 +053058
Alexander Holler86e09282010-11-22 21:09:01 +010059 BT_DBG("udev %p", udev);
Vikram Kandukuri9670d802010-01-06 19:04:15 +053060
Alexander Holler86e09282010-11-22 21:09:01 +010061 pipe = usb_sndctrlpipe(udev, 0);
Vikram Kandukuri9670d802010-01-06 19:04:15 +053062
63 send_buf = kmalloc(BULK_SIZE, GFP_ATOMIC);
64 if (!send_buf) {
65 BT_ERR("Can't allocate memory chunk for firmware");
66 return -ENOMEM;
67 }
68
Alexander Holler86e09282010-11-22 21:09:01 +010069 memcpy(send_buf, firmware->data, 20);
70 if ((err = usb_control_msg(udev, pipe,
71 USB_REQ_DFU_DNLOAD,
72 USB_TYPE_VENDOR, 0, 0,
73 send_buf, 20, USB_CTRL_SET_TIMEOUT)) < 0) {
74 BT_ERR("Can't change to loading configuration err");
75 goto error;
76 }
77 sent += 20;
78 count -= 20;
79
Vikram Kandukuri9670d802010-01-06 19:04:15 +053080 while (count) {
81 size = min_t(uint, count, BULK_SIZE);
Alexander Holler86e09282010-11-22 21:09:01 +010082 pipe = usb_sndbulkpipe(udev, 0x02);
83 memcpy(send_buf, firmware->data + sent, size);
Vikram Kandukuri9670d802010-01-06 19:04:15 +053084
Alexander Holler86e09282010-11-22 21:09:01 +010085 err = usb_bulk_msg(udev, pipe, send_buf, size,
Vikram Kandukuri9670d802010-01-06 19:04:15 +053086 &len, 3000);
87
88 if (err || (len != size)) {
89 BT_ERR("Error in firmware loading err = %d,"
90 "len = %d, size = %d", err, len, size);
91 goto error;
92 }
93
94 sent += size;
95 count -= size;
96 }
97
98 kfree(send_buf);
99 return 0;
100
101error:
102 kfree(send_buf);
103 return err;
104}
105
106static int ath3k_probe(struct usb_interface *intf,
107 const struct usb_device_id *id)
108{
109 const struct firmware *firmware;
110 struct usb_device *udev = interface_to_usbdev(intf);
Rogério Brito84f0e172011-02-03 01:42:05 -0200111 int ret;
Vikram Kandukuri9670d802010-01-06 19:04:15 +0530112
113 BT_DBG("intf %p id %p", intf, id);
114
115 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
116 return -ENODEV;
117
Vikram Kandukuri9670d802010-01-06 19:04:15 +0530118 if (request_firmware(&firmware, "ath3k-1.fw", &udev->dev) < 0) {
Vikram Kandukuri9670d802010-01-06 19:04:15 +0530119 return -EIO;
120 }
121
Rogério Brito84f0e172011-02-03 01:42:05 -0200122 ret = ath3k_load_firmware(udev, firmware);
Alexander Holler86e09282010-11-22 21:09:01 +0100123 release_firmware(firmware);
Vikram Kandukuri9670d802010-01-06 19:04:15 +0530124
Rogério Brito84f0e172011-02-03 01:42:05 -0200125 return ret;
Vikram Kandukuri9670d802010-01-06 19:04:15 +0530126}
127
128static void ath3k_disconnect(struct usb_interface *intf)
129{
Vikram Kandukuri9670d802010-01-06 19:04:15 +0530130 BT_DBG("ath3k_disconnect intf %p", intf);
Vikram Kandukuri9670d802010-01-06 19:04:15 +0530131}
132
133static struct usb_driver ath3k_driver = {
134 .name = "ath3k",
135 .probe = ath3k_probe,
136 .disconnect = ath3k_disconnect,
137 .id_table = ath3k_table,
138};
139
140static int __init ath3k_init(void)
141{
142 BT_INFO("Atheros AR30xx firmware driver ver %s", VERSION);
143 return usb_register(&ath3k_driver);
144}
145
146static void __exit ath3k_exit(void)
147{
148 usb_deregister(&ath3k_driver);
149}
150
151module_init(ath3k_init);
152module_exit(ath3k_exit);
153
154MODULE_AUTHOR("Atheros Communications");
155MODULE_DESCRIPTION("Atheros AR30xx firmware driver");
156MODULE_VERSION(VERSION);
157MODULE_LICENSE("GPL");
158MODULE_FIRMWARE("ath3k-1.fw");