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Bluetooth: Add new PID for Atheros 3011
[~shefty/rdma-dev.git] / drivers / bluetooth / ath3k.c
1 /*
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
35 static struct usb_device_id ath3k_table[] = {
36         /* Atheros AR3011 */
37         { USB_DEVICE(0x0CF3, 0x3000) },
38
39         /* Atheros AR3011 with sflash firmware*/
40         { USB_DEVICE(0x0CF3, 0x3002) },
41
42         { }     /* Terminating entry */
43 };
44
45 MODULE_DEVICE_TABLE(usb, ath3k_table);
46
47 #define USB_REQ_DFU_DNLOAD      1
48 #define BULK_SIZE               4096
49
50 struct ath3k_data {
51         struct usb_device *udev;
52         u8 *fw_data;
53         u32 fw_size;
54         u32 fw_sent;
55 };
56
57 static int ath3k_load_firmware(struct ath3k_data *data,
58                                 unsigned char *firmware,
59                                 int count)
60 {
61         u8 *send_buf;
62         int err, pipe, len, size, sent = 0;
63
64         BT_DBG("ath3k %p udev %p", data, data->udev);
65
66         pipe = usb_sndctrlpipe(data->udev, 0);
67
68         if ((usb_control_msg(data->udev, pipe,
69                                 USB_REQ_DFU_DNLOAD,
70                                 USB_TYPE_VENDOR, 0, 0,
71                                 firmware, 20, USB_CTRL_SET_TIMEOUT)) < 0) {
72                 BT_ERR("Can't change to loading configuration err");
73                 return -EBUSY;
74         }
75         sent += 20;
76         count -= 20;
77
78         send_buf = kmalloc(BULK_SIZE, GFP_ATOMIC);
79         if (!send_buf) {
80                 BT_ERR("Can't allocate memory chunk for firmware");
81                 return -ENOMEM;
82         }
83
84         while (count) {
85                 size = min_t(uint, count, BULK_SIZE);
86                 pipe = usb_sndbulkpipe(data->udev, 0x02);
87                 memcpy(send_buf, firmware + sent, size);
88
89                 err = usb_bulk_msg(data->udev, pipe, send_buf, size,
90                                         &len, 3000);
91
92                 if (err || (len != size)) {
93                         BT_ERR("Error in firmware loading err = %d,"
94                                 "len = %d, size = %d", err, len, size);
95                         goto error;
96                 }
97
98                 sent  += size;
99                 count -= size;
100         }
101
102         kfree(send_buf);
103         return 0;
104
105 error:
106         kfree(send_buf);
107         return err;
108 }
109
110 static int ath3k_probe(struct usb_interface *intf,
111                         const struct usb_device_id *id)
112 {
113         const struct firmware *firmware;
114         struct usb_device *udev = interface_to_usbdev(intf);
115         struct ath3k_data *data;
116         int size;
117
118         BT_DBG("intf %p id %p", intf, id);
119
120         if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
121                 return -ENODEV;
122
123         data = kzalloc(sizeof(*data), GFP_KERNEL);
124         if (!data)
125                 return -ENOMEM;
126
127         data->udev = udev;
128
129         if (request_firmware(&firmware, "ath3k-1.fw", &udev->dev) < 0) {
130                 kfree(data);
131                 return -EIO;
132         }
133
134         size = max_t(uint, firmware->size, 4096);
135         data->fw_data = kmalloc(size, GFP_KERNEL);
136         if (!data->fw_data) {
137                 release_firmware(firmware);
138                 kfree(data);
139                 return -ENOMEM;
140         }
141
142         memcpy(data->fw_data, firmware->data, firmware->size);
143         data->fw_size = firmware->size;
144         data->fw_sent = 0;
145         release_firmware(firmware);
146
147         usb_set_intfdata(intf, data);
148         if (ath3k_load_firmware(data, data->fw_data, data->fw_size)) {
149                 usb_set_intfdata(intf, NULL);
150                 kfree(data->fw_data);
151                 kfree(data);
152                 return -EIO;
153         }
154
155         return 0;
156 }
157
158 static void ath3k_disconnect(struct usb_interface *intf)
159 {
160         struct ath3k_data *data = usb_get_intfdata(intf);
161
162         BT_DBG("ath3k_disconnect intf %p", intf);
163
164         kfree(data->fw_data);
165         kfree(data);
166 }
167
168 static struct usb_driver ath3k_driver = {
169         .name           = "ath3k",
170         .probe          = ath3k_probe,
171         .disconnect     = ath3k_disconnect,
172         .id_table       = ath3k_table,
173 };
174
175 static int __init ath3k_init(void)
176 {
177         BT_INFO("Atheros AR30xx firmware driver ver %s", VERSION);
178         return usb_register(&ath3k_driver);
179 }
180
181 static void __exit ath3k_exit(void)
182 {
183         usb_deregister(&ath3k_driver);
184 }
185
186 module_init(ath3k_init);
187 module_exit(ath3k_exit);
188
189 MODULE_AUTHOR("Atheros Communications");
190 MODULE_DESCRIPTION("Atheros AR30xx firmware driver");
191 MODULE_VERSION(VERSION);
192 MODULE_LICENSE("GPL");
193 MODULE_FIRMWARE("ath3k-1.fw");