blob: 2c4997ce248484703a1b859c5e518396fcdbfa64 [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
Paul Gortmakera59b9682011-08-29 16:44:23 -040021#include <linux/module.h>
Bing Zhao433a9382013-11-01 15:28:24 -070022#include <linux/of.h>
Bing Zhao132ff4e2009-06-02 14:29:35 -070023#include <net/bluetooth/bluetooth.h>
24#include <net/bluetooth/hci_core.h>
25
26#include "btmrvl_drv.h"
27
28#define VERSION "1.0"
29
30/*
31 * This function is called by interface specific interrupt handler.
32 * It updates Power Save & Host Sleep states, and wakes up the main
33 * thread.
34 */
35void btmrvl_interrupt(struct btmrvl_private *priv)
36{
Bing Zhao132ff4e2009-06-02 14:29:35 -070037 priv->adapter->ps_state = PS_AWAKE;
38
39 priv->adapter->wakeup_tries = 0;
40
41 priv->adapter->int_count++;
42
43 wake_up_interruptible(&priv->main_thread.wait_q);
Bing Zhao132ff4e2009-06-02 14:29:35 -070044}
45EXPORT_SYMBOL_GPL(btmrvl_interrupt);
46
Andrei Emeltchenkoea1e76a2012-06-13 13:35:44 +030047bool btmrvl_check_evtpkt(struct btmrvl_private *priv, struct sk_buff *skb)
Bing Zhao132ff4e2009-06-02 14:29:35 -070048{
Marcel Holtmann4271e082009-06-09 16:00:22 +020049 struct hci_event_hdr *hdr = (void *) skb->data;
Bing Zhao132ff4e2009-06-02 14:29:35 -070050
Bing Zhao132ff4e2009-06-02 14:29:35 -070051 if (hdr->evt == HCI_EV_CMD_COMPLETE) {
Andrei Emeltchenko2c2453f2012-07-09 13:57:18 +030052 struct hci_ev_cmd_complete *ec;
Bing Zhao3e4543a2013-10-31 15:08:31 -070053 u16 opcode;
Andrei Emeltchenko2c2453f2012-07-09 13:57:18 +030054
Marcel Holtmann4271e082009-06-09 16:00:22 +020055 ec = (void *) (skb->data + HCI_EVENT_HDR_SIZE);
Bing Zhao132ff4e2009-06-02 14:29:35 -070056 opcode = __le16_to_cpu(ec->opcode);
Andrei Emeltchenkoea1e76a2012-06-13 13:35:44 +030057
Amitkumar Karwarc0378742013-10-01 12:19:12 -070058 if (priv->btmrvl_dev.sendcmdflag) {
Bing Zhao132ff4e2009-06-02 14:29:35 -070059 priv->btmrvl_dev.sendcmdflag = false;
60 priv->adapter->cmd_complete = true;
61 wake_up_interruptible(&priv->adapter->cmd_wait_q);
Andrei Emeltchenkoea1e76a2012-06-13 13:35:44 +030062
Amitkumar Karward986b4a2014-03-20 20:05:44 -070063 if (hci_opcode_ogf(opcode) == 0x3F) {
64 BT_DBG("vendor event skipped: opcode=%#4.4x",
65 opcode);
66 kfree_skb(skb);
67 return false;
68 }
Andrei Emeltchenkoea1e76a2012-06-13 13:35:44 +030069 }
Bing Zhao132ff4e2009-06-02 14:29:35 -070070 }
Andrei Emeltchenkoea1e76a2012-06-13 13:35:44 +030071
72 return true;
Bing Zhao132ff4e2009-06-02 14:29:35 -070073}
74EXPORT_SYMBOL_GPL(btmrvl_check_evtpkt);
75
76int btmrvl_process_event(struct btmrvl_private *priv, struct sk_buff *skb)
77{
78 struct btmrvl_adapter *adapter = priv->adapter;
Bing Zhao132ff4e2009-06-02 14:29:35 -070079 struct btmrvl_event *event;
Dan Carpenter31f085f2010-03-08 15:15:59 +030080 int ret = 0;
Bing Zhao132ff4e2009-06-02 14:29:35 -070081
Bing Zhao132ff4e2009-06-02 14:29:35 -070082 event = (struct btmrvl_event *) skb->data;
83 if (event->ec != 0xff) {
84 BT_DBG("Not Marvell Event=%x", event->ec);
85 ret = -EINVAL;
86 goto exit;
87 }
88
89 switch (event->data[0]) {
Bing Zhao3e4543a2013-10-31 15:08:31 -070090 case BT_EVENT_AUTO_SLEEP_MODE:
Bing Zhao132ff4e2009-06-02 14:29:35 -070091 if (!event->data[2]) {
92 if (event->data[1] == BT_PS_ENABLE)
93 adapter->psmode = 1;
94 else
95 adapter->psmode = 0;
96 BT_DBG("PS Mode:%s",
97 (adapter->psmode) ? "Enable" : "Disable");
98 } else {
99 BT_DBG("PS Mode command failed");
100 }
101 break;
102
Bing Zhao3e4543a2013-10-31 15:08:31 -0700103 case BT_EVENT_HOST_SLEEP_CONFIG:
Bing Zhao132ff4e2009-06-02 14:29:35 -0700104 if (!event->data[3])
105 BT_DBG("gpio=%x, gap=%x", event->data[1],
Marcel Holtmann4271e082009-06-09 16:00:22 +0200106 event->data[2]);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700107 else
108 BT_DBG("HSCFG command failed");
109 break;
110
Bing Zhao3e4543a2013-10-31 15:08:31 -0700111 case BT_EVENT_HOST_SLEEP_ENABLE:
Bing Zhao132ff4e2009-06-02 14:29:35 -0700112 if (!event->data[1]) {
113 adapter->hs_state = HS_ACTIVATED;
114 if (adapter->psmode)
115 adapter->ps_state = PS_SLEEP;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700116 BT_DBG("HS ACTIVATED!");
117 } else {
118 BT_DBG("HS Enable failed");
119 }
120 break;
121
Bing Zhao3e4543a2013-10-31 15:08:31 -0700122 case BT_EVENT_MODULE_CFG_REQ:
Marcel Holtmann4271e082009-06-09 16:00:22 +0200123 if (priv->btmrvl_dev.sendcmdflag &&
124 event->data[1] == MODULE_BRINGUP_REQ) {
Bing Zhao903c8432010-03-03 14:37:35 -0800125 BT_DBG("EVENT:%s",
126 ((event->data[2] == MODULE_BROUGHT_UP) ||
127 (event->data[2] == MODULE_ALREADY_UP)) ?
128 "Bring-up succeed" : "Bring-up failed");
Bing Zhaof120c6b2010-03-03 14:37:37 -0800129
David Vrabel8f1e1742010-08-09 17:38:10 -0400130 if (event->length > 3 && event->data[3])
131 priv->btmrvl_dev.dev_type = HCI_AMP;
Bing Zhaof120c6b2010-03-03 14:37:37 -0800132 else
133 priv->btmrvl_dev.dev_type = HCI_BREDR;
134
135 BT_DBG("dev_type: %d", priv->btmrvl_dev.dev_type);
Marcel Holtmann4271e082009-06-09 16:00:22 +0200136 } else if (priv->btmrvl_dev.sendcmdflag &&
137 event->data[1] == MODULE_SHUTDOWN_REQ) {
Bing Zhao132ff4e2009-06-02 14:29:35 -0700138 BT_DBG("EVENT:%s", (event->data[2]) ?
139 "Shutdown failed" : "Shutdown succeed");
140 } else {
141 BT_DBG("BT_CMD_MODULE_CFG_REQ resp for APP");
142 ret = -EINVAL;
143 }
144 break;
145
146 case BT_EVENT_POWER_STATE:
147 if (event->data[1] == BT_PS_SLEEP)
148 adapter->ps_state = PS_SLEEP;
149 BT_DBG("EVENT:%s",
150 (adapter->ps_state) ? "PS_SLEEP" : "PS_AWAKE");
151 break;
152
153 default:
154 BT_DBG("Unknown Event=%d", event->data[0]);
155 ret = -EINVAL;
156 break;
157 }
158
159exit:
160 if (!ret)
161 kfree_skb(skb);
162
Bing Zhao132ff4e2009-06-02 14:29:35 -0700163 return ret;
164}
165EXPORT_SYMBOL_GPL(btmrvl_process_event);
166
Bing Zhao3e4543a2013-10-31 15:08:31 -0700167static int btmrvl_send_sync_cmd(struct btmrvl_private *priv, u16 opcode,
Amitkumar Karwarc0378742013-10-01 12:19:12 -0700168 const void *param, u8 len)
Bing Zhao132ff4e2009-06-02 14:29:35 -0700169{
Marcel Holtmann4271e082009-06-09 16:00:22 +0200170 struct sk_buff *skb;
Amitkumar Karwar7d5b4002013-10-01 12:19:13 -0700171 struct hci_command_hdr *hdr;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700172
Amitkumar Karwar7d5b4002013-10-01 12:19:13 -0700173 skb = bt_skb_alloc(HCI_COMMAND_HDR_SIZE + len, GFP_ATOMIC);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700174 if (skb == NULL) {
175 BT_ERR("No free skb");
Marcel Holtmann93742532009-06-13 07:40:18 +0200176 return -ENOMEM;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700177 }
178
Amitkumar Karwar7d5b4002013-10-01 12:19:13 -0700179 hdr = (struct hci_command_hdr *)skb_put(skb, HCI_COMMAND_HDR_SIZE);
Bing Zhao3e4543a2013-10-31 15:08:31 -0700180 hdr->opcode = cpu_to_le16(opcode);
Amitkumar Karwar7d5b4002013-10-01 12:19:13 -0700181 hdr->plen = len;
Amitkumar Karwarc0378742013-10-01 12:19:12 -0700182
183 if (len)
Amitkumar Karwar7d5b4002013-10-01 12:19:13 -0700184 memcpy(skb_put(skb, len), param, len);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700185
186 bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT;
187
Bing Zhao132ff4e2009-06-02 14:29:35 -0700188 skb_queue_head(&priv->adapter->tx_queue, skb);
189
190 priv->btmrvl_dev.sendcmdflag = true;
191
192 priv->adapter->cmd_complete = false;
193
Bing Zhao132ff4e2009-06-02 14:29:35 -0700194 wake_up_interruptible(&priv->main_thread.wait_q);
195
Marcel Holtmann4271e082009-06-09 16:00:22 +0200196 if (!wait_event_interruptible_timeout(priv->adapter->cmd_wait_q,
197 priv->adapter->cmd_complete,
Amitkumar Karwarc0378742013-10-01 12:19:12 -0700198 msecs_to_jiffies(WAIT_UNTIL_CMD_RESP)))
199 return -ETIMEDOUT;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700200
Amitkumar Karwarc0378742013-10-01 12:19:12 -0700201 return 0;
202}
203
204int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, int subcmd)
205{
206 int ret;
207
208 ret = btmrvl_send_sync_cmd(priv, BT_CMD_MODULE_CFG_REQ, &subcmd, 1);
209 if (ret)
210 BT_ERR("module_cfg_cmd(%x) failed\n", subcmd);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700211
Bing Zhao132ff4e2009-06-02 14:29:35 -0700212 return ret;
213}
214EXPORT_SYMBOL_GPL(btmrvl_send_module_cfg_cmd);
215
Amitkumar Karwar2a8ff612012-04-24 16:31:40 -0700216int btmrvl_send_hscfg_cmd(struct btmrvl_private *priv)
217{
Amitkumar Karwarc0378742013-10-01 12:19:12 -0700218 int ret;
219 u8 param[2];
Amitkumar Karwar2a8ff612012-04-24 16:31:40 -0700220
Amitkumar Karwarc0378742013-10-01 12:19:12 -0700221 param[0] = (priv->btmrvl_dev.gpio_gap & 0xff00) >> 8;
222 param[1] = (u8) (priv->btmrvl_dev.gpio_gap & 0x00ff);
Amitkumar Karwar2a8ff612012-04-24 16:31:40 -0700223
Amitkumar Karwarc0378742013-10-01 12:19:12 -0700224 BT_DBG("Sending HSCFG Command, gpio=0x%x, gap=0x%x",
225 param[0], param[1]);
Amitkumar Karwar2a8ff612012-04-24 16:31:40 -0700226
Amitkumar Karwarc0378742013-10-01 12:19:12 -0700227 ret = btmrvl_send_sync_cmd(priv, BT_CMD_HOST_SLEEP_CONFIG, param, 2);
228 if (ret)
229 BT_ERR("HSCFG command failed\n");
Amitkumar Karwar2a8ff612012-04-24 16:31:40 -0700230
Amitkumar Karwarc0378742013-10-01 12:19:12 -0700231 return ret;
Amitkumar Karwar2a8ff612012-04-24 16:31:40 -0700232}
233EXPORT_SYMBOL_GPL(btmrvl_send_hscfg_cmd);
234
Amitkumar Karwar32fd6392009-09-30 11:18:30 -0700235int btmrvl_enable_ps(struct btmrvl_private *priv)
236{
Amitkumar Karwarc0378742013-10-01 12:19:12 -0700237 int ret;
238 u8 param;
Amitkumar Karwar32fd6392009-09-30 11:18:30 -0700239
240 if (priv->btmrvl_dev.psmode)
Amitkumar Karwarc0378742013-10-01 12:19:12 -0700241 param = BT_PS_ENABLE;
Amitkumar Karwar32fd6392009-09-30 11:18:30 -0700242 else
Amitkumar Karwarc0378742013-10-01 12:19:12 -0700243 param = BT_PS_DISABLE;
Amitkumar Karwar32fd6392009-09-30 11:18:30 -0700244
Amitkumar Karwarc0378742013-10-01 12:19:12 -0700245 ret = btmrvl_send_sync_cmd(priv, BT_CMD_AUTO_SLEEP_MODE, &param, 1);
246 if (ret)
247 BT_ERR("PSMODE command failed\n");
Amitkumar Karwar32fd6392009-09-30 11:18:30 -0700248
249 return 0;
250}
251EXPORT_SYMBOL_GPL(btmrvl_enable_ps);
252
Amitkumar Karwarba54a162012-04-25 11:43:54 -0700253int btmrvl_enable_hs(struct btmrvl_private *priv)
Bing Zhao132ff4e2009-06-02 14:29:35 -0700254{
Amitkumar Karwarc0378742013-10-01 12:19:12 -0700255 int ret;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700256
Amitkumar Karwarc0378742013-10-01 12:19:12 -0700257 ret = btmrvl_send_sync_cmd(priv, BT_CMD_HOST_SLEEP_ENABLE, NULL, 0);
258 if (ret)
259 BT_ERR("Host sleep enable command failed\n");
Bing Zhao132ff4e2009-06-02 14:29:35 -0700260
Bing Zhao132ff4e2009-06-02 14:29:35 -0700261 return ret;
262}
Amitkumar Karwarba54a162012-04-25 11:43:54 -0700263EXPORT_SYMBOL_GPL(btmrvl_enable_hs);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700264
265int btmrvl_prepare_command(struct btmrvl_private *priv)
266{
Marcel Holtmann93742532009-06-13 07:40:18 +0200267 int ret = 0;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700268
269 if (priv->btmrvl_dev.hscfgcmd) {
270 priv->btmrvl_dev.hscfgcmd = 0;
Amitkumar Karwar2a8ff612012-04-24 16:31:40 -0700271 btmrvl_send_hscfg_cmd(priv);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700272 }
273
274 if (priv->btmrvl_dev.pscmd) {
275 priv->btmrvl_dev.pscmd = 0;
Amitkumar Karwar32fd6392009-09-30 11:18:30 -0700276 btmrvl_enable_ps(priv);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700277 }
278
279 if (priv->btmrvl_dev.hscmd) {
280 priv->btmrvl_dev.hscmd = 0;
281
282 if (priv->btmrvl_dev.hsmode) {
283 ret = btmrvl_enable_hs(priv);
284 } else {
285 ret = priv->hw_wakeup_firmware(priv);
286 priv->adapter->hs_state = HS_DEACTIVATED;
287 }
288 }
289
Bing Zhao132ff4e2009-06-02 14:29:35 -0700290 return ret;
291}
292
293static int btmrvl_tx_pkt(struct btmrvl_private *priv, struct sk_buff *skb)
294{
Marcel Holtmann93742532009-06-13 07:40:18 +0200295 int ret = 0;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700296
Marcel Holtmann93742532009-06-13 07:40:18 +0200297 if (!skb || !skb->data)
Bing Zhao132ff4e2009-06-02 14:29:35 -0700298 return -EINVAL;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700299
300 if (!skb->len || ((skb->len + BTM_HEADER_LEN) > BTM_UPLD_SIZE)) {
301 BT_ERR("Tx Error: Bad skb length %d : %d",
Marcel Holtmann4271e082009-06-09 16:00:22 +0200302 skb->len, BTM_UPLD_SIZE);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700303 return -EINVAL;
304 }
305
306 if (skb_headroom(skb) < BTM_HEADER_LEN) {
307 struct sk_buff *tmp = skb;
308
309 skb = skb_realloc_headroom(skb, BTM_HEADER_LEN);
310 if (!skb) {
311 BT_ERR("Tx Error: realloc_headroom failed %d",
312 BTM_HEADER_LEN);
313 skb = tmp;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700314 return -EINVAL;
315 }
316
317 kfree_skb(tmp);
318 }
319
320 skb_push(skb, BTM_HEADER_LEN);
321
322 /* header type: byte[3]
323 * HCI_COMMAND = 1, ACL_DATA = 2, SCO_DATA = 3, 0xFE = Vendor
324 * header length: byte[2][1][0]
325 */
326
327 skb->data[0] = (skb->len & 0x0000ff);
328 skb->data[1] = (skb->len & 0x00ff00) >> 8;
329 skb->data[2] = (skb->len & 0xff0000) >> 16;
330 skb->data[3] = bt_cb(skb)->pkt_type;
331
332 if (priv->hw_host_to_card)
333 ret = priv->hw_host_to_card(priv, skb->data, skb->len);
334
Bing Zhao132ff4e2009-06-02 14:29:35 -0700335 return ret;
336}
337
338static void btmrvl_init_adapter(struct btmrvl_private *priv)
339{
Bing Zhao132ff4e2009-06-02 14:29:35 -0700340 skb_queue_head_init(&priv->adapter->tx_queue);
341
342 priv->adapter->ps_state = PS_AWAKE;
343
344 init_waitqueue_head(&priv->adapter->cmd_wait_q);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700345}
346
347static void btmrvl_free_adapter(struct btmrvl_private *priv)
348{
Bing Zhao132ff4e2009-06-02 14:29:35 -0700349 skb_queue_purge(&priv->adapter->tx_queue);
350
351 kfree(priv->adapter);
352
353 priv->adapter = NULL;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700354}
355
Marcel Holtmann7bd8f092013-10-11 06:19:18 -0700356static int btmrvl_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
Bing Zhao132ff4e2009-06-02 14:29:35 -0700357{
Marcel Holtmann7648d282013-10-11 07:01:00 -0700358 struct btmrvl_private *priv = hci_get_drvdata(hdev);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700359
Marcel Holtmann93742532009-06-13 07:40:18 +0200360 BT_DBG("type=%d, len=%d", skb->pkt_type, skb->len);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700361
Bing Zhao132ff4e2009-06-02 14:29:35 -0700362 if (!test_bit(HCI_RUNNING, &hdev->flags)) {
363 BT_ERR("Failed testing HCI_RUNING, flags=%lx", hdev->flags);
364 print_hex_dump_bytes("data: ", DUMP_PREFIX_OFFSET,
Marcel Holtmann4271e082009-06-09 16:00:22 +0200365 skb->data, skb->len);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700366 return -EBUSY;
367 }
368
369 switch (bt_cb(skb)->pkt_type) {
370 case HCI_COMMAND_PKT:
371 hdev->stat.cmd_tx++;
372 break;
373
374 case HCI_ACLDATA_PKT:
375 hdev->stat.acl_tx++;
376 break;
377
378 case HCI_SCODATA_PKT:
379 hdev->stat.sco_tx++;
380 break;
381 }
382
383 skb_queue_tail(&priv->adapter->tx_queue, skb);
384
385 wake_up_interruptible(&priv->main_thread.wait_q);
386
Bing Zhao132ff4e2009-06-02 14:29:35 -0700387 return 0;
388}
389
390static int btmrvl_flush(struct hci_dev *hdev)
391{
David Herrmann155961e2012-02-09 21:58:32 +0100392 struct btmrvl_private *priv = hci_get_drvdata(hdev);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700393
Bing Zhao132ff4e2009-06-02 14:29:35 -0700394 skb_queue_purge(&priv->adapter->tx_queue);
395
Bing Zhao132ff4e2009-06-02 14:29:35 -0700396 return 0;
397}
398
399static int btmrvl_close(struct hci_dev *hdev)
400{
David Herrmann155961e2012-02-09 21:58:32 +0100401 struct btmrvl_private *priv = hci_get_drvdata(hdev);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700402
Marcel Holtmann93742532009-06-13 07:40:18 +0200403 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
Bing Zhao132ff4e2009-06-02 14:29:35 -0700404 return 0;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700405
406 skb_queue_purge(&priv->adapter->tx_queue);
407
Bing Zhao132ff4e2009-06-02 14:29:35 -0700408 return 0;
409}
410
411static int btmrvl_open(struct hci_dev *hdev)
412{
Bing Zhao132ff4e2009-06-02 14:29:35 -0700413 set_bit(HCI_RUNNING, &hdev->flags);
414
Bing Zhao132ff4e2009-06-02 14:29:35 -0700415 return 0;
416}
417
Bing Zhao433a9382013-11-01 15:28:24 -0700418static int btmrvl_download_cal_data(struct btmrvl_private *priv,
Bing Zhao8a4934f2013-11-01 15:28:25 -0700419 u8 *data, int len)
Amitkumar Karwar2cc86892013-10-01 12:19:15 -0700420{
Bing Zhao8a4934f2013-11-01 15:28:25 -0700421 int ret;
Amitkumar Karwar2cc86892013-10-01 12:19:15 -0700422
423 data[0] = 0x00;
424 data[1] = 0x00;
425 data[2] = 0x00;
Bing Zhao8a4934f2013-11-01 15:28:25 -0700426 data[3] = len;
Amitkumar Karwar2cc86892013-10-01 12:19:15 -0700427
428 print_hex_dump_bytes("Calibration data: ",
Bing Zhao8a4934f2013-11-01 15:28:25 -0700429 DUMP_PREFIX_OFFSET, data, BT_CAL_HDR_LEN + len);
Amitkumar Karwar2cc86892013-10-01 12:19:15 -0700430
431 ret = btmrvl_send_sync_cmd(priv, BT_CMD_LOAD_CONFIG_DATA, data,
Bing Zhao8a4934f2013-11-01 15:28:25 -0700432 BT_CAL_HDR_LEN + len);
Amitkumar Karwar2cc86892013-10-01 12:19:15 -0700433 if (ret)
434 BT_ERR("Failed to download caibration data\n");
435
436 return 0;
437}
438
Bing Zhao433a9382013-11-01 15:28:24 -0700439static int btmrvl_cal_data_dt(struct btmrvl_private *priv)
Amitkumar Karwar2cc86892013-10-01 12:19:15 -0700440{
Bing Zhao433a9382013-11-01 15:28:24 -0700441 struct device_node *dt_node;
Bing Zhao8a4934f2013-11-01 15:28:25 -0700442 u8 cal_data[BT_CAL_HDR_LEN + BT_CAL_DATA_SIZE];
Bing Zhao433a9382013-11-01 15:28:24 -0700443 const char name[] = "btmrvl_caldata";
444 const char property[] = "btmrvl,caldata";
Amitkumar Karwar2cc86892013-10-01 12:19:15 -0700445 int ret;
446
Bing Zhao433a9382013-11-01 15:28:24 -0700447 dt_node = of_find_node_by_name(NULL, name);
448 if (!dt_node)
449 return -ENODEV;
450
Bing Zhao8a4934f2013-11-01 15:28:25 -0700451 ret = of_property_read_u8_array(dt_node, property,
452 cal_data + BT_CAL_HDR_LEN,
453 BT_CAL_DATA_SIZE);
Amitkumar Karwar2cc86892013-10-01 12:19:15 -0700454 if (ret)
455 return ret;
456
Bing Zhao433a9382013-11-01 15:28:24 -0700457 BT_DBG("Use cal data from device tree");
Bing Zhao8a4934f2013-11-01 15:28:25 -0700458 ret = btmrvl_download_cal_data(priv, cal_data, BT_CAL_DATA_SIZE);
Amitkumar Karwar2cc86892013-10-01 12:19:15 -0700459 if (ret) {
Bing Zhao433a9382013-11-01 15:28:24 -0700460 BT_ERR("Fail to download calibrate data");
Amitkumar Karwar2cc86892013-10-01 12:19:15 -0700461 return ret;
462 }
463
464 return 0;
465}
466
Amitkumar Karwar4b245722013-10-01 12:19:14 -0700467static int btmrvl_setup(struct hci_dev *hdev)
468{
469 struct btmrvl_private *priv = hci_get_drvdata(hdev);
470
471 btmrvl_send_module_cfg_cmd(priv, MODULE_BRINGUP_REQ);
472
Bing Zhao433a9382013-11-01 15:28:24 -0700473 btmrvl_cal_data_dt(priv);
Amitkumar Karwar2cc86892013-10-01 12:19:15 -0700474
Amitkumar Karwar4b245722013-10-01 12:19:14 -0700475 priv->btmrvl_dev.psmode = 1;
476 btmrvl_enable_ps(priv);
477
478 priv->btmrvl_dev.gpio_gap = 0xffff;
479 btmrvl_send_hscfg_cmd(priv);
480
481 return 0;
482}
483
Bing Zhao132ff4e2009-06-02 14:29:35 -0700484/*
485 * This function handles the event generated by firmware, rx data
486 * received from firmware, and tx data sent from kernel.
487 */
488static int btmrvl_service_main_thread(void *data)
489{
490 struct btmrvl_thread *thread = data;
491 struct btmrvl_private *priv = thread->priv;
492 struct btmrvl_adapter *adapter = priv->adapter;
493 wait_queue_t wait;
494 struct sk_buff *skb;
495 ulong flags;
496
Bing Zhao132ff4e2009-06-02 14:29:35 -0700497 init_waitqueue_entry(&wait, current);
498
Bing Zhao132ff4e2009-06-02 14:29:35 -0700499 for (;;) {
500 add_wait_queue(&thread->wait_q, &wait);
501
502 set_current_state(TASK_INTERRUPTIBLE);
Daniel Drakeea05fea2013-06-11 15:40:20 -0400503 if (kthread_should_stop()) {
504 BT_DBG("main_thread: break from main thread");
505 break;
506 }
Bing Zhao132ff4e2009-06-02 14:29:35 -0700507
508 if (adapter->wakeup_tries ||
Marcel Holtmann4271e082009-06-09 16:00:22 +0200509 ((!adapter->int_count) &&
510 (!priv->btmrvl_dev.tx_dnld_rdy ||
511 skb_queue_empty(&adapter->tx_queue)))) {
Bing Zhao132ff4e2009-06-02 14:29:35 -0700512 BT_DBG("main_thread is sleeping...");
513 schedule();
514 }
515
516 set_current_state(TASK_RUNNING);
517
518 remove_wait_queue(&thread->wait_q, &wait);
519
520 BT_DBG("main_thread woke up");
521
Bing Zhao132ff4e2009-06-02 14:29:35 -0700522 spin_lock_irqsave(&priv->driver_lock, flags);
523 if (adapter->int_count) {
524 adapter->int_count = 0;
Amitkumar Karward1d10d72010-05-27 16:38:37 -0700525 spin_unlock_irqrestore(&priv->driver_lock, flags);
526 priv->hw_process_int_status(priv);
Marcel Holtmann4271e082009-06-09 16:00:22 +0200527 } else if (adapter->ps_state == PS_SLEEP &&
528 !skb_queue_empty(&adapter->tx_queue)) {
Bing Zhao132ff4e2009-06-02 14:29:35 -0700529 spin_unlock_irqrestore(&priv->driver_lock, flags);
530 adapter->wakeup_tries++;
531 priv->hw_wakeup_firmware(priv);
532 continue;
Amitkumar Karward1d10d72010-05-27 16:38:37 -0700533 } else {
534 spin_unlock_irqrestore(&priv->driver_lock, flags);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700535 }
Bing Zhao132ff4e2009-06-02 14:29:35 -0700536
537 if (adapter->ps_state == PS_SLEEP)
538 continue;
539
540 if (!priv->btmrvl_dev.tx_dnld_rdy)
541 continue;
542
543 skb = skb_dequeue(&adapter->tx_queue);
544 if (skb) {
545 if (btmrvl_tx_pkt(priv, skb))
546 priv->btmrvl_dev.hcidev->stat.err_tx++;
547 else
Marcel Holtmann4271e082009-06-09 16:00:22 +0200548 priv->btmrvl_dev.hcidev->stat.byte_tx += skb->len;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700549
550 kfree_skb(skb);
551 }
552 }
553
Bing Zhao132ff4e2009-06-02 14:29:35 -0700554 return 0;
555}
556
Bing Zhao64061602010-03-03 14:37:36 -0800557int btmrvl_register_hdev(struct btmrvl_private *priv)
Bing Zhao132ff4e2009-06-02 14:29:35 -0700558{
559 struct hci_dev *hdev = NULL;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700560 int ret;
561
Bing Zhao64061602010-03-03 14:37:36 -0800562 hdev = hci_alloc_dev();
563 if (!hdev) {
564 BT_ERR("Can not allocate HCI device");
565 goto err_hdev;
566 }
567
568 priv->btmrvl_dev.hcidev = hdev;
David Herrmann155961e2012-02-09 21:58:32 +0100569 hci_set_drvdata(hdev, priv);
Bing Zhao64061602010-03-03 14:37:36 -0800570
Marcel Holtmanne93ac9c2013-10-10 10:50:05 -0700571 hdev->bus = HCI_SDIO;
572 hdev->open = btmrvl_open;
Bing Zhao64061602010-03-03 14:37:36 -0800573 hdev->close = btmrvl_close;
574 hdev->flush = btmrvl_flush;
Marcel Holtmanne93ac9c2013-10-10 10:50:05 -0700575 hdev->send = btmrvl_send_frame;
Amitkumar Karwar4b245722013-10-01 12:19:14 -0700576 hdev->setup = btmrvl_setup;
Bing Zhao64061602010-03-03 14:37:36 -0800577
Bing Zhaof120c6b2010-03-03 14:37:37 -0800578 hdev->dev_type = priv->btmrvl_dev.dev_type;
579
Bing Zhao64061602010-03-03 14:37:36 -0800580 ret = hci_register_dev(hdev);
581 if (ret < 0) {
582 BT_ERR("Can not register HCI device");
583 goto err_hci_register_dev;
584 }
585
586#ifdef CONFIG_DEBUG_FS
587 btmrvl_debugfs_init(hdev);
588#endif
589
590 return 0;
591
592err_hci_register_dev:
593 hci_free_dev(hdev);
594
595err_hdev:
596 /* Stop the thread servicing the interrupts */
597 kthread_stop(priv->main_thread.task);
598
599 btmrvl_free_adapter(priv);
600 kfree(priv);
601
602 return -ENOMEM;
603}
604EXPORT_SYMBOL_GPL(btmrvl_register_hdev);
605
606struct btmrvl_private *btmrvl_add_card(void *card)
607{
608 struct btmrvl_private *priv;
609
Bing Zhao132ff4e2009-06-02 14:29:35 -0700610 priv = kzalloc(sizeof(*priv), GFP_KERNEL);
611 if (!priv) {
612 BT_ERR("Can not allocate priv");
613 goto err_priv;
614 }
615
616 priv->adapter = kzalloc(sizeof(*priv->adapter), GFP_KERNEL);
617 if (!priv->adapter) {
618 BT_ERR("Allocate buffer for btmrvl_adapter failed!");
619 goto err_adapter;
620 }
621
622 btmrvl_init_adapter(priv);
623
Bing Zhao132ff4e2009-06-02 14:29:35 -0700624 BT_DBG("Starting kthread...");
625 priv->main_thread.priv = priv;
626 spin_lock_init(&priv->driver_lock);
627
628 init_waitqueue_head(&priv->main_thread.wait_q);
629 priv->main_thread.task = kthread_run(btmrvl_service_main_thread,
Marcel Holtmann4271e082009-06-09 16:00:22 +0200630 &priv->main_thread, "btmrvl_main_service");
Bing Zhao132ff4e2009-06-02 14:29:35 -0700631
Bing Zhao132ff4e2009-06-02 14:29:35 -0700632 priv->btmrvl_dev.card = card;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700633 priv->btmrvl_dev.tx_dnld_rdy = true;
634
Bing Zhao132ff4e2009-06-02 14:29:35 -0700635 return priv;
636
Bing Zhao132ff4e2009-06-02 14:29:35 -0700637err_adapter:
638 kfree(priv);
639
640err_priv:
Bing Zhao132ff4e2009-06-02 14:29:35 -0700641 return NULL;
642}
643EXPORT_SYMBOL_GPL(btmrvl_add_card);
644
645int btmrvl_remove_card(struct btmrvl_private *priv)
646{
647 struct hci_dev *hdev;
648
Bing Zhao132ff4e2009-06-02 14:29:35 -0700649 hdev = priv->btmrvl_dev.hcidev;
650
651 wake_up_interruptible(&priv->adapter->cmd_wait_q);
652
653 kthread_stop(priv->main_thread.task);
654
Bing Zhaofb784f02009-06-02 14:29:37 -0700655#ifdef CONFIG_DEBUG_FS
656 btmrvl_debugfs_remove(hdev);
657#endif
658
Bing Zhao132ff4e2009-06-02 14:29:35 -0700659 hci_unregister_dev(hdev);
660
661 hci_free_dev(hdev);
662
663 priv->btmrvl_dev.hcidev = NULL;
664
665 btmrvl_free_adapter(priv);
666
667 kfree(priv);
668
Bing Zhao132ff4e2009-06-02 14:29:35 -0700669 return 0;
670}
671EXPORT_SYMBOL_GPL(btmrvl_remove_card);
672
673MODULE_AUTHOR("Marvell International Ltd.");
Marcel Holtmann9666fb32009-06-09 21:45:04 +0200674MODULE_DESCRIPTION("Marvell Bluetooth driver ver " VERSION);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700675MODULE_VERSION(VERSION);
676MODULE_LICENSE("GPL v2");