blob: f97771ce432ce1308044df91c3f381564cc2d3be [file] [log] [blame]
Bing Zhao132ff4e2009-06-02 14:29:35 -07001/**
2 * Marvell Bluetooth driver
3 *
4 * Copyright (C) 2009, Marvell International Ltd.
5 *
6 * This software file (the "File") is distributed by Marvell International
7 * Ltd. under the terms of the GNU General Public License Version 2, June 1991
8 * (the "License"). You may use, redistribute and/or modify this File in
9 * accordance with the terms and conditions of the License, a copy of which
10 * is available by writing to the Free Software Foundation, Inc.,
11 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
12 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
13 *
14 *
15 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
17 * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
18 * this warranty disclaimer.
19 **/
20
21#include <net/bluetooth/bluetooth.h>
22#include <net/bluetooth/hci_core.h>
23
24#include "btmrvl_drv.h"
25
26#define VERSION "1.0"
27
28/*
29 * This function is called by interface specific interrupt handler.
30 * It updates Power Save & Host Sleep states, and wakes up the main
31 * thread.
32 */
33void btmrvl_interrupt(struct btmrvl_private *priv)
34{
Bing Zhao132ff4e2009-06-02 14:29:35 -070035 priv->adapter->ps_state = PS_AWAKE;
36
37 priv->adapter->wakeup_tries = 0;
38
39 priv->adapter->int_count++;
40
41 wake_up_interruptible(&priv->main_thread.wait_q);
Bing Zhao132ff4e2009-06-02 14:29:35 -070042}
43EXPORT_SYMBOL_GPL(btmrvl_interrupt);
44
45void btmrvl_check_evtpkt(struct btmrvl_private *priv, struct sk_buff *skb)
46{
Marcel Holtmann4271e082009-06-09 16:00:22 +020047 struct hci_event_hdr *hdr = (void *) skb->data;
Bing Zhao132ff4e2009-06-02 14:29:35 -070048 struct hci_ev_cmd_complete *ec;
49 u16 opcode, ocf;
50
Bing Zhao132ff4e2009-06-02 14:29:35 -070051 if (hdr->evt == HCI_EV_CMD_COMPLETE) {
Marcel Holtmann4271e082009-06-09 16:00:22 +020052 ec = (void *) (skb->data + HCI_EVENT_HDR_SIZE);
Bing Zhao132ff4e2009-06-02 14:29:35 -070053 opcode = __le16_to_cpu(ec->opcode);
54 ocf = hci_opcode_ocf(opcode);
Marcel Holtmann4271e082009-06-09 16:00:22 +020055 if (ocf == BT_CMD_MODULE_CFG_REQ &&
56 priv->btmrvl_dev.sendcmdflag) {
Bing Zhao132ff4e2009-06-02 14:29:35 -070057 priv->btmrvl_dev.sendcmdflag = false;
58 priv->adapter->cmd_complete = true;
59 wake_up_interruptible(&priv->adapter->cmd_wait_q);
60 }
61 }
Bing Zhao132ff4e2009-06-02 14:29:35 -070062}
63EXPORT_SYMBOL_GPL(btmrvl_check_evtpkt);
64
65int btmrvl_process_event(struct btmrvl_private *priv, struct sk_buff *skb)
66{
67 struct btmrvl_adapter *adapter = priv->adapter;
Bing Zhao132ff4e2009-06-02 14:29:35 -070068 struct btmrvl_event *event;
Marcel Holtmann4271e082009-06-09 16:00:22 +020069 u8 ret = 0;
Bing Zhao132ff4e2009-06-02 14:29:35 -070070
Bing Zhao132ff4e2009-06-02 14:29:35 -070071 event = (struct btmrvl_event *) skb->data;
72 if (event->ec != 0xff) {
73 BT_DBG("Not Marvell Event=%x", event->ec);
74 ret = -EINVAL;
75 goto exit;
76 }
77
78 switch (event->data[0]) {
79 case BT_CMD_AUTO_SLEEP_MODE:
80 if (!event->data[2]) {
81 if (event->data[1] == BT_PS_ENABLE)
82 adapter->psmode = 1;
83 else
84 adapter->psmode = 0;
85 BT_DBG("PS Mode:%s",
86 (adapter->psmode) ? "Enable" : "Disable");
87 } else {
88 BT_DBG("PS Mode command failed");
89 }
90 break;
91
92 case BT_CMD_HOST_SLEEP_CONFIG:
93 if (!event->data[3])
94 BT_DBG("gpio=%x, gap=%x", event->data[1],
Marcel Holtmann4271e082009-06-09 16:00:22 +020095 event->data[2]);
Bing Zhao132ff4e2009-06-02 14:29:35 -070096 else
97 BT_DBG("HSCFG command failed");
98 break;
99
100 case BT_CMD_HOST_SLEEP_ENABLE:
101 if (!event->data[1]) {
102 adapter->hs_state = HS_ACTIVATED;
103 if (adapter->psmode)
104 adapter->ps_state = PS_SLEEP;
105 wake_up_interruptible(&adapter->cmd_wait_q);
106 BT_DBG("HS ACTIVATED!");
107 } else {
108 BT_DBG("HS Enable failed");
109 }
110 break;
111
112 case BT_CMD_MODULE_CFG_REQ:
Marcel Holtmann4271e082009-06-09 16:00:22 +0200113 if (priv->btmrvl_dev.sendcmdflag &&
114 event->data[1] == MODULE_BRINGUP_REQ) {
Bing Zhao132ff4e2009-06-02 14:29:35 -0700115 BT_DBG("EVENT:%s", (event->data[2]) ?
116 "Bring-up failed" : "Bring-up succeed");
Marcel Holtmann4271e082009-06-09 16:00:22 +0200117 } else if (priv->btmrvl_dev.sendcmdflag &&
118 event->data[1] == MODULE_SHUTDOWN_REQ) {
Bing Zhao132ff4e2009-06-02 14:29:35 -0700119 BT_DBG("EVENT:%s", (event->data[2]) ?
120 "Shutdown failed" : "Shutdown succeed");
121 } else {
122 BT_DBG("BT_CMD_MODULE_CFG_REQ resp for APP");
123 ret = -EINVAL;
124 }
125 break;
126
127 case BT_EVENT_POWER_STATE:
128 if (event->data[1] == BT_PS_SLEEP)
129 adapter->ps_state = PS_SLEEP;
130 BT_DBG("EVENT:%s",
131 (adapter->ps_state) ? "PS_SLEEP" : "PS_AWAKE");
132 break;
133
134 default:
135 BT_DBG("Unknown Event=%d", event->data[0]);
136 ret = -EINVAL;
137 break;
138 }
139
140exit:
141 if (!ret)
142 kfree_skb(skb);
143
Bing Zhao132ff4e2009-06-02 14:29:35 -0700144 return ret;
145}
146EXPORT_SYMBOL_GPL(btmrvl_process_event);
147
148int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, int subcmd)
149{
Marcel Holtmann4271e082009-06-09 16:00:22 +0200150 struct sk_buff *skb;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700151 struct btmrvl_cmd *cmd;
Marcel Holtmann93742532009-06-13 07:40:18 +0200152 int ret = 0;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700153
154 skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC);
155 if (skb == NULL) {
156 BT_ERR("No free skb");
Marcel Holtmann93742532009-06-13 07:40:18 +0200157 return -ENOMEM;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700158 }
159
Marcel Holtmanne0721f92009-06-13 07:27:19 +0200160 cmd = (struct btmrvl_cmd *) skb_put(skb, sizeof(*cmd));
Marcel Holtmann91d69732009-06-10 12:18:50 +0200161 cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF, BT_CMD_MODULE_CFG_REQ));
Bing Zhao132ff4e2009-06-02 14:29:35 -0700162 cmd->length = 1;
163 cmd->data[0] = subcmd;
164
165 bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT;
166
Marcel Holtmann4271e082009-06-09 16:00:22 +0200167 skb->dev = (void *) priv->btmrvl_dev.hcidev;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700168 skb_queue_head(&priv->adapter->tx_queue, skb);
169
170 priv->btmrvl_dev.sendcmdflag = true;
171
172 priv->adapter->cmd_complete = false;
173
174 BT_DBG("Queue module cfg Command");
175
176 wake_up_interruptible(&priv->main_thread.wait_q);
177
Marcel Holtmann4271e082009-06-09 16:00:22 +0200178 if (!wait_event_interruptible_timeout(priv->adapter->cmd_wait_q,
179 priv->adapter->cmd_complete,
180 msecs_to_jiffies(WAIT_UNTIL_CMD_RESP))) {
Bing Zhao132ff4e2009-06-02 14:29:35 -0700181 ret = -ETIMEDOUT;
182 BT_ERR("module_cfg_cmd(%x): timeout: %d",
Marcel Holtmann4271e082009-06-09 16:00:22 +0200183 subcmd, priv->btmrvl_dev.sendcmdflag);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700184 }
185
186 BT_DBG("module cfg Command done");
187
Bing Zhao132ff4e2009-06-02 14:29:35 -0700188 return ret;
189}
190EXPORT_SYMBOL_GPL(btmrvl_send_module_cfg_cmd);
191
Amitkumar Karwar32fd6392009-09-30 11:18:30 -0700192int btmrvl_enable_ps(struct btmrvl_private *priv)
193{
194 struct sk_buff *skb;
195 struct btmrvl_cmd *cmd;
196
197 skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC);
198 if (skb == NULL) {
199 BT_ERR("No free skb");
200 return -ENOMEM;
201 }
202
203 cmd = (struct btmrvl_cmd *) skb_put(skb, sizeof(*cmd));
204 cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF,
205 BT_CMD_AUTO_SLEEP_MODE));
206 cmd->length = 1;
207
208 if (priv->btmrvl_dev.psmode)
209 cmd->data[0] = BT_PS_ENABLE;
210 else
211 cmd->data[0] = BT_PS_DISABLE;
212
213 bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT;
214
215 skb->dev = (void *) priv->btmrvl_dev.hcidev;
216 skb_queue_head(&priv->adapter->tx_queue, skb);
217
218 BT_DBG("Queue PSMODE Command:%d", cmd->data[0]);
219
220 return 0;
221}
222EXPORT_SYMBOL_GPL(btmrvl_enable_ps);
223
Bing Zhao132ff4e2009-06-02 14:29:35 -0700224static int btmrvl_enable_hs(struct btmrvl_private *priv)
225{
Marcel Holtmann4271e082009-06-09 16:00:22 +0200226 struct sk_buff *skb;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700227 struct btmrvl_cmd *cmd;
Marcel Holtmann93742532009-06-13 07:40:18 +0200228 int ret = 0;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700229
230 skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC);
231 if (skb == NULL) {
232 BT_ERR("No free skb");
Marcel Holtmann93742532009-06-13 07:40:18 +0200233 return -ENOMEM;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700234 }
235
Marcel Holtmanne0721f92009-06-13 07:27:19 +0200236 cmd = (struct btmrvl_cmd *) skb_put(skb, sizeof(*cmd));
Marcel Holtmann91d69732009-06-10 12:18:50 +0200237 cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF, BT_CMD_HOST_SLEEP_ENABLE));
Bing Zhao132ff4e2009-06-02 14:29:35 -0700238 cmd->length = 0;
239
240 bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT;
241
Marcel Holtmann4271e082009-06-09 16:00:22 +0200242 skb->dev = (void *) priv->btmrvl_dev.hcidev;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700243 skb_queue_head(&priv->adapter->tx_queue, skb);
244
245 BT_DBG("Queue hs enable Command");
246
247 wake_up_interruptible(&priv->main_thread.wait_q);
248
Marcel Holtmann4271e082009-06-09 16:00:22 +0200249 if (!wait_event_interruptible_timeout(priv->adapter->cmd_wait_q,
Bing Zhao132ff4e2009-06-02 14:29:35 -0700250 priv->adapter->hs_state,
251 msecs_to_jiffies(WAIT_UNTIL_HS_STATE_CHANGED))) {
252 ret = -ETIMEDOUT;
Marcel Holtmann4271e082009-06-09 16:00:22 +0200253 BT_ERR("timeout: %d, %d,%d", priv->adapter->hs_state,
254 priv->adapter->ps_state,
255 priv->adapter->wakeup_tries);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700256 }
257
Bing Zhao132ff4e2009-06-02 14:29:35 -0700258 return ret;
259}
260
261int btmrvl_prepare_command(struct btmrvl_private *priv)
262{
263 struct sk_buff *skb = NULL;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700264 struct btmrvl_cmd *cmd;
Marcel Holtmann93742532009-06-13 07:40:18 +0200265 int ret = 0;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700266
267 if (priv->btmrvl_dev.hscfgcmd) {
268 priv->btmrvl_dev.hscfgcmd = 0;
269
270 skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC);
271 if (skb == NULL) {
272 BT_ERR("No free skb");
Marcel Holtmann93742532009-06-13 07:40:18 +0200273 return -ENOMEM;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700274 }
275
Marcel Holtmanne0721f92009-06-13 07:27:19 +0200276 cmd = (struct btmrvl_cmd *) skb_put(skb, sizeof(*cmd));
Marcel Holtmann91d69732009-06-10 12:18:50 +0200277 cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF, BT_CMD_HOST_SLEEP_CONFIG));
Bing Zhao132ff4e2009-06-02 14:29:35 -0700278 cmd->length = 2;
279 cmd->data[0] = (priv->btmrvl_dev.gpio_gap & 0xff00) >> 8;
280 cmd->data[1] = (u8) (priv->btmrvl_dev.gpio_gap & 0x00ff);
281
282 bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT;
283
Marcel Holtmann4271e082009-06-09 16:00:22 +0200284 skb->dev = (void *) priv->btmrvl_dev.hcidev;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700285 skb_queue_head(&priv->adapter->tx_queue, skb);
286
287 BT_DBG("Queue HSCFG Command, gpio=0x%x, gap=0x%x",
Marcel Holtmann4271e082009-06-09 16:00:22 +0200288 cmd->data[0], cmd->data[1]);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700289 }
290
291 if (priv->btmrvl_dev.pscmd) {
292 priv->btmrvl_dev.pscmd = 0;
Amitkumar Karwar32fd6392009-09-30 11:18:30 -0700293 btmrvl_enable_ps(priv);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700294 }
295
296 if (priv->btmrvl_dev.hscmd) {
297 priv->btmrvl_dev.hscmd = 0;
298
299 if (priv->btmrvl_dev.hsmode) {
300 ret = btmrvl_enable_hs(priv);
301 } else {
302 ret = priv->hw_wakeup_firmware(priv);
303 priv->adapter->hs_state = HS_DEACTIVATED;
304 }
305 }
306
Bing Zhao132ff4e2009-06-02 14:29:35 -0700307 return ret;
308}
309
310static int btmrvl_tx_pkt(struct btmrvl_private *priv, struct sk_buff *skb)
311{
Marcel Holtmann93742532009-06-13 07:40:18 +0200312 int ret = 0;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700313
Marcel Holtmann93742532009-06-13 07:40:18 +0200314 if (!skb || !skb->data)
Bing Zhao132ff4e2009-06-02 14:29:35 -0700315 return -EINVAL;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700316
317 if (!skb->len || ((skb->len + BTM_HEADER_LEN) > BTM_UPLD_SIZE)) {
318 BT_ERR("Tx Error: Bad skb length %d : %d",
Marcel Holtmann4271e082009-06-09 16:00:22 +0200319 skb->len, BTM_UPLD_SIZE);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700320 return -EINVAL;
321 }
322
323 if (skb_headroom(skb) < BTM_HEADER_LEN) {
324 struct sk_buff *tmp = skb;
325
326 skb = skb_realloc_headroom(skb, BTM_HEADER_LEN);
327 if (!skb) {
328 BT_ERR("Tx Error: realloc_headroom failed %d",
329 BTM_HEADER_LEN);
330 skb = tmp;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700331 return -EINVAL;
332 }
333
334 kfree_skb(tmp);
335 }
336
337 skb_push(skb, BTM_HEADER_LEN);
338
339 /* header type: byte[3]
340 * HCI_COMMAND = 1, ACL_DATA = 2, SCO_DATA = 3, 0xFE = Vendor
341 * header length: byte[2][1][0]
342 */
343
344 skb->data[0] = (skb->len & 0x0000ff);
345 skb->data[1] = (skb->len & 0x00ff00) >> 8;
346 skb->data[2] = (skb->len & 0xff0000) >> 16;
347 skb->data[3] = bt_cb(skb)->pkt_type;
348
349 if (priv->hw_host_to_card)
350 ret = priv->hw_host_to_card(priv, skb->data, skb->len);
351
Bing Zhao132ff4e2009-06-02 14:29:35 -0700352 return ret;
353}
354
355static void btmrvl_init_adapter(struct btmrvl_private *priv)
356{
Bing Zhao132ff4e2009-06-02 14:29:35 -0700357 skb_queue_head_init(&priv->adapter->tx_queue);
358
359 priv->adapter->ps_state = PS_AWAKE;
360
361 init_waitqueue_head(&priv->adapter->cmd_wait_q);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700362}
363
364static void btmrvl_free_adapter(struct btmrvl_private *priv)
365{
Bing Zhao132ff4e2009-06-02 14:29:35 -0700366 skb_queue_purge(&priv->adapter->tx_queue);
367
368 kfree(priv->adapter);
369
370 priv->adapter = NULL;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700371}
372
Marcel Holtmann4271e082009-06-09 16:00:22 +0200373static int btmrvl_ioctl(struct hci_dev *hdev,
374 unsigned int cmd, unsigned long arg)
Bing Zhao132ff4e2009-06-02 14:29:35 -0700375{
Bing Zhao132ff4e2009-06-02 14:29:35 -0700376 return -ENOIOCTLCMD;
377}
378
379static void btmrvl_destruct(struct hci_dev *hdev)
380{
Bing Zhao132ff4e2009-06-02 14:29:35 -0700381}
382
383static int btmrvl_send_frame(struct sk_buff *skb)
384{
Marcel Holtmann4271e082009-06-09 16:00:22 +0200385 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700386 struct btmrvl_private *priv = NULL;
387
Marcel Holtmann93742532009-06-13 07:40:18 +0200388 BT_DBG("type=%d, len=%d", skb->pkt_type, skb->len);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700389
390 if (!hdev || !hdev->driver_data) {
391 BT_ERR("Frame for unknown HCI device");
Bing Zhao132ff4e2009-06-02 14:29:35 -0700392 return -ENODEV;
393 }
394
Marcel Holtmann4271e082009-06-09 16:00:22 +0200395 priv = (struct btmrvl_private *) hdev->driver_data;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700396 if (!test_bit(HCI_RUNNING, &hdev->flags)) {
397 BT_ERR("Failed testing HCI_RUNING, flags=%lx", hdev->flags);
398 print_hex_dump_bytes("data: ", DUMP_PREFIX_OFFSET,
Marcel Holtmann4271e082009-06-09 16:00:22 +0200399 skb->data, skb->len);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700400 return -EBUSY;
401 }
402
403 switch (bt_cb(skb)->pkt_type) {
404 case HCI_COMMAND_PKT:
405 hdev->stat.cmd_tx++;
406 break;
407
408 case HCI_ACLDATA_PKT:
409 hdev->stat.acl_tx++;
410 break;
411
412 case HCI_SCODATA_PKT:
413 hdev->stat.sco_tx++;
414 break;
415 }
416
417 skb_queue_tail(&priv->adapter->tx_queue, skb);
418
419 wake_up_interruptible(&priv->main_thread.wait_q);
420
Bing Zhao132ff4e2009-06-02 14:29:35 -0700421 return 0;
422}
423
424static int btmrvl_flush(struct hci_dev *hdev)
425{
Marcel Holtmann4271e082009-06-09 16:00:22 +0200426 struct btmrvl_private *priv = hdev->driver_data;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700427
Bing Zhao132ff4e2009-06-02 14:29:35 -0700428 skb_queue_purge(&priv->adapter->tx_queue);
429
Bing Zhao132ff4e2009-06-02 14:29:35 -0700430 return 0;
431}
432
433static int btmrvl_close(struct hci_dev *hdev)
434{
Marcel Holtmann4271e082009-06-09 16:00:22 +0200435 struct btmrvl_private *priv = hdev->driver_data;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700436
Marcel Holtmann93742532009-06-13 07:40:18 +0200437 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
Bing Zhao132ff4e2009-06-02 14:29:35 -0700438 return 0;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700439
440 skb_queue_purge(&priv->adapter->tx_queue);
441
Bing Zhao132ff4e2009-06-02 14:29:35 -0700442 return 0;
443}
444
445static int btmrvl_open(struct hci_dev *hdev)
446{
Bing Zhao132ff4e2009-06-02 14:29:35 -0700447 set_bit(HCI_RUNNING, &hdev->flags);
448
Bing Zhao132ff4e2009-06-02 14:29:35 -0700449 return 0;
450}
451
452/*
453 * This function handles the event generated by firmware, rx data
454 * received from firmware, and tx data sent from kernel.
455 */
456static int btmrvl_service_main_thread(void *data)
457{
458 struct btmrvl_thread *thread = data;
459 struct btmrvl_private *priv = thread->priv;
460 struct btmrvl_adapter *adapter = priv->adapter;
461 wait_queue_t wait;
462 struct sk_buff *skb;
463 ulong flags;
464
Bing Zhao132ff4e2009-06-02 14:29:35 -0700465 init_waitqueue_entry(&wait, current);
466
467 current->flags |= PF_NOFREEZE;
468
469 for (;;) {
470 add_wait_queue(&thread->wait_q, &wait);
471
472 set_current_state(TASK_INTERRUPTIBLE);
473
474 if (adapter->wakeup_tries ||
Marcel Holtmann4271e082009-06-09 16:00:22 +0200475 ((!adapter->int_count) &&
476 (!priv->btmrvl_dev.tx_dnld_rdy ||
477 skb_queue_empty(&adapter->tx_queue)))) {
Bing Zhao132ff4e2009-06-02 14:29:35 -0700478 BT_DBG("main_thread is sleeping...");
479 schedule();
480 }
481
482 set_current_state(TASK_RUNNING);
483
484 remove_wait_queue(&thread->wait_q, &wait);
485
486 BT_DBG("main_thread woke up");
487
488 if (kthread_should_stop()) {
489 BT_DBG("main_thread: break from main thread");
490 break;
491 }
492
493 spin_lock_irqsave(&priv->driver_lock, flags);
494 if (adapter->int_count) {
495 adapter->int_count = 0;
Marcel Holtmann4271e082009-06-09 16:00:22 +0200496 } else if (adapter->ps_state == PS_SLEEP &&
497 !skb_queue_empty(&adapter->tx_queue)) {
Bing Zhao132ff4e2009-06-02 14:29:35 -0700498 spin_unlock_irqrestore(&priv->driver_lock, flags);
499 adapter->wakeup_tries++;
500 priv->hw_wakeup_firmware(priv);
501 continue;
502 }
503 spin_unlock_irqrestore(&priv->driver_lock, flags);
504
505 if (adapter->ps_state == PS_SLEEP)
506 continue;
507
508 if (!priv->btmrvl_dev.tx_dnld_rdy)
509 continue;
510
511 skb = skb_dequeue(&adapter->tx_queue);
512 if (skb) {
513 if (btmrvl_tx_pkt(priv, skb))
514 priv->btmrvl_dev.hcidev->stat.err_tx++;
515 else
Marcel Holtmann4271e082009-06-09 16:00:22 +0200516 priv->btmrvl_dev.hcidev->stat.byte_tx += skb->len;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700517
518 kfree_skb(skb);
519 }
520 }
521
Bing Zhao132ff4e2009-06-02 14:29:35 -0700522 return 0;
523}
524
525struct btmrvl_private *btmrvl_add_card(void *card)
526{
527 struct hci_dev *hdev = NULL;
Marcel Holtmann4271e082009-06-09 16:00:22 +0200528 struct btmrvl_private *priv;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700529 int ret;
530
Bing Zhao132ff4e2009-06-02 14:29:35 -0700531 priv = kzalloc(sizeof(*priv), GFP_KERNEL);
532 if (!priv) {
533 BT_ERR("Can not allocate priv");
534 goto err_priv;
535 }
536
537 priv->adapter = kzalloc(sizeof(*priv->adapter), GFP_KERNEL);
538 if (!priv->adapter) {
539 BT_ERR("Allocate buffer for btmrvl_adapter failed!");
540 goto err_adapter;
541 }
542
543 btmrvl_init_adapter(priv);
544
545 hdev = hci_alloc_dev();
546 if (!hdev) {
547 BT_ERR("Can not allocate HCI device");
548 goto err_hdev;
549 }
550
551 BT_DBG("Starting kthread...");
552 priv->main_thread.priv = priv;
553 spin_lock_init(&priv->driver_lock);
554
555 init_waitqueue_head(&priv->main_thread.wait_q);
556 priv->main_thread.task = kthread_run(btmrvl_service_main_thread,
Marcel Holtmann4271e082009-06-09 16:00:22 +0200557 &priv->main_thread, "btmrvl_main_service");
Bing Zhao132ff4e2009-06-02 14:29:35 -0700558
559 priv->btmrvl_dev.hcidev = hdev;
560 priv->btmrvl_dev.card = card;
561
562 hdev->driver_data = priv;
563
564 priv->btmrvl_dev.tx_dnld_rdy = true;
565
566 hdev->type = HCI_SDIO;
567 hdev->open = btmrvl_open;
568 hdev->close = btmrvl_close;
569 hdev->flush = btmrvl_flush;
570 hdev->send = btmrvl_send_frame;
571 hdev->destruct = btmrvl_destruct;
572 hdev->ioctl = btmrvl_ioctl;
573 hdev->owner = THIS_MODULE;
574
575 ret = hci_register_dev(hdev);
576 if (ret < 0) {
577 BT_ERR("Can not register HCI device");
578 goto err_hci_register_dev;
579 }
580
Bing Zhaofb784f02009-06-02 14:29:37 -0700581#ifdef CONFIG_DEBUG_FS
582 btmrvl_debugfs_init(hdev);
583#endif
584
Bing Zhao132ff4e2009-06-02 14:29:35 -0700585 return priv;
586
587err_hci_register_dev:
588 /* Stop the thread servicing the interrupts */
589 kthread_stop(priv->main_thread.task);
590
591 hci_free_dev(hdev);
592
593err_hdev:
594 btmrvl_free_adapter(priv);
595
596err_adapter:
597 kfree(priv);
598
599err_priv:
Bing Zhao132ff4e2009-06-02 14:29:35 -0700600 return NULL;
601}
602EXPORT_SYMBOL_GPL(btmrvl_add_card);
603
604int btmrvl_remove_card(struct btmrvl_private *priv)
605{
606 struct hci_dev *hdev;
607
Bing Zhao132ff4e2009-06-02 14:29:35 -0700608 hdev = priv->btmrvl_dev.hcidev;
609
610 wake_up_interruptible(&priv->adapter->cmd_wait_q);
611
612 kthread_stop(priv->main_thread.task);
613
Bing Zhaofb784f02009-06-02 14:29:37 -0700614#ifdef CONFIG_DEBUG_FS
615 btmrvl_debugfs_remove(hdev);
616#endif
617
Bing Zhao132ff4e2009-06-02 14:29:35 -0700618 hci_unregister_dev(hdev);
619
620 hci_free_dev(hdev);
621
622 priv->btmrvl_dev.hcidev = NULL;
623
624 btmrvl_free_adapter(priv);
625
626 kfree(priv);
627
Bing Zhao132ff4e2009-06-02 14:29:35 -0700628 return 0;
629}
630EXPORT_SYMBOL_GPL(btmrvl_remove_card);
631
632MODULE_AUTHOR("Marvell International Ltd.");
Marcel Holtmann9666fb32009-06-09 21:45:04 +0200633MODULE_DESCRIPTION("Marvell Bluetooth driver ver " VERSION);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700634MODULE_VERSION(VERSION);
635MODULE_LICENSE("GPL v2");