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authorVikram Kandukuri <vkandukuri@atheros.com>2010-01-06 08:34:15 -0500
committerMarcel Holtmann <marcel@holtmann.org>2010-01-30 08:57:34 -0500
commit9670d80a9a6e24725c4111bef5d6cc7786ad0dc5 (patch)
tree22cb112a77bb85cb297cb68bb5ac360b62358b61
parent7427847d2d044d85f478757ea03165ae3cfe87c4 (diff)
Bluetooth: Add DFU driver for Atheros Bluetooth chipset AR3011
Signed-off-by: Vikram Kandukuri <vikram.kandukuri@atheros.com> Signed-off-by: Alicke Xu <sxu@atheros.com> Reviewed-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
-rw-r--r--drivers/bluetooth/Kconfig13
-rw-r--r--drivers/bluetooth/Makefile1
-rw-r--r--drivers/bluetooth/ath3k.c187
3 files changed, 200 insertions, 1 deletions
diff --git a/drivers/bluetooth/Kconfig b/drivers/bluetooth/Kconfig
index 652367aa6546..058fbccf2f52 100644
--- a/drivers/bluetooth/Kconfig
+++ b/drivers/bluetooth/Kconfig
@@ -195,5 +195,16 @@ config BT_MRVL_SDIO
195 Say Y here to compile support for Marvell BT-over-SDIO driver 195 Say Y here to compile support for Marvell BT-over-SDIO driver
196 into the kernel or say M to compile it as module. 196 into the kernel or say M to compile it as module.
197 197
198endmenu 198config BT_ATH3K
199 tristate "Atheros firmware download driver"
200 depends on BT_HCIBTUSB
201 select FW_LOADER
202 help
203 Bluetooth firmware download driver.
204 This driver loads the firmware into the Atheros Bluetooth
205 chipset.
199 206
207 Say Y here to compile support for "Atheros firmware download driver"
208 into the kernel or say M to compile it as module (ath3k).
209
210endmenu
diff --git a/drivers/bluetooth/Makefile b/drivers/bluetooth/Makefile
index b3f57d2d4eb0..7e5aed598121 100644
--- a/drivers/bluetooth/Makefile
+++ b/drivers/bluetooth/Makefile
@@ -15,6 +15,7 @@ obj-$(CONFIG_BT_HCIBTUART) += btuart_cs.o
15obj-$(CONFIG_BT_HCIBTUSB) += btusb.o 15obj-$(CONFIG_BT_HCIBTUSB) += btusb.o
16obj-$(CONFIG_BT_HCIBTSDIO) += btsdio.o 16obj-$(CONFIG_BT_HCIBTSDIO) += btsdio.o
17 17
18obj-$(CONFIG_BT_ATH3K) += ath3k.o
18obj-$(CONFIG_BT_MRVL) += btmrvl.o 19obj-$(CONFIG_BT_MRVL) += btmrvl.o
19obj-$(CONFIG_BT_MRVL_SDIO) += btmrvl_sdio.o 20obj-$(CONFIG_BT_MRVL_SDIO) += btmrvl_sdio.o
20 21
diff --git a/drivers/bluetooth/ath3k.c b/drivers/bluetooth/ath3k.c
new file mode 100644
index 000000000000..add9485ca5b6
--- /dev/null
+++ b/drivers/bluetooth/ath3k.c
@@ -0,0 +1,187 @@
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
35static struct usb_device_id ath3k_table[] = {
36 /* Atheros AR3011 */
37 { USB_DEVICE(0x0CF3, 0x3000) },
38 { } /* Terminating entry */
39};
40
41MODULE_DEVICE_TABLE(usb, ath3k_table);
42
43#define USB_REQ_DFU_DNLOAD 1
44#define BULK_SIZE 4096
45
46struct ath3k_data {
47 struct usb_device *udev;
48 u8 *fw_data;
49 u32 fw_size;
50 u32 fw_sent;
51};
52
53static int ath3k_load_firmware(struct ath3k_data *data,
54 unsigned char *firmware,
55 int count)
56{
57 u8 *send_buf;
58 int err, pipe, len, size, sent = 0;
59
60 BT_DBG("ath3k %p udev %p", data, data->udev);
61
62 pipe = usb_sndctrlpipe(data->udev, 0);
63
64 if ((usb_control_msg(data->udev, pipe,
65 USB_REQ_DFU_DNLOAD,
66 USB_TYPE_VENDOR, 0, 0,
67 firmware, 20, USB_CTRL_SET_TIMEOUT)) < 0) {
68 BT_ERR("Can't change to loading configuration err");
69 return -EBUSY;
70 }
71 sent += 20;
72 count -= 20;
73
74 send_buf = kmalloc(BULK_SIZE, GFP_ATOMIC);
75 if (!send_buf) {
76 BT_ERR("Can't allocate memory chunk for firmware");
77 return -ENOMEM;
78 }
79
80 while (count) {
81 size = min_t(uint, count, BULK_SIZE);
82 pipe = usb_sndbulkpipe(data->udev, 0x02);
83 memcpy(send_buf, firmware + sent, size);
84
85 err = usb_bulk_msg(data->udev, pipe, send_buf, size,
86 &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);
111 struct ath3k_data *data;
112 int size;
113
114 BT_DBG("intf %p id %p", intf, id);
115
116 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
117 return -ENODEV;
118
119 data = kzalloc(sizeof(*data), GFP_KERNEL);
120 if (!data)
121 return -ENOMEM;
122
123 data->udev = udev;
124
125 if (request_firmware(&firmware, "ath3k-1.fw", &udev->dev) < 0) {
126 kfree(data);
127 return -EIO;
128 }
129
130 size = max_t(uint, firmware->size, 4096);
131 data->fw_data = kmalloc(size, GFP_KERNEL);
132 if (!data->fw_data) {
133 release_firmware(firmware);
134 kfree(data);
135 return -ENOMEM;
136 }
137
138 memcpy(data->fw_data, firmware->data, firmware->size);
139 data->fw_size = firmware->size;
140 data->fw_sent = 0;
141 release_firmware(firmware);
142
143 usb_set_intfdata(intf, data);
144 if (ath3k_load_firmware(data, data->fw_data, data->fw_size)) {
145 usb_set_intfdata(intf, NULL);
146 return -EIO;
147 }
148
149 return 0;
150}
151
152static void ath3k_disconnect(struct usb_interface *intf)
153{
154 struct ath3k_data *data = usb_get_intfdata(intf);
155
156 BT_DBG("ath3k_disconnect intf %p", intf);
157
158 kfree(data->fw_data);
159 kfree(data);
160}
161
162static struct usb_driver ath3k_driver = {
163 .name = "ath3k",
164 .probe = ath3k_probe,
165 .disconnect = ath3k_disconnect,
166 .id_table = ath3k_table,
167};
168
169static int __init ath3k_init(void)
170{
171 BT_INFO("Atheros AR30xx firmware driver ver %s", VERSION);
172 return usb_register(&ath3k_driver);
173}
174
175static void __exit ath3k_exit(void)
176{
177 usb_deregister(&ath3k_driver);
178}
179
180module_init(ath3k_init);
181module_exit(ath3k_exit);
182
183MODULE_AUTHOR("Atheros Communications");
184MODULE_DESCRIPTION("Atheros AR30xx firmware driver");
185MODULE_VERSION(VERSION);
186MODULE_LICENSE("GPL");
187MODULE_FIRMWARE("ath3k-1.fw");