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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>
Xinming Hudc759612014-11-24 02:40:53 -080025#include <linux/mmc/sdio_func.h>
Bing Zhao132ff4e2009-06-02 14:29:35 -070026
27#include "btmrvl_drv.h"
Bing Zhao0d367402014-03-28 14:54:39 -070028#include "btmrvl_sdio.h"
Bing Zhao132ff4e2009-06-02 14:29:35 -070029
30#define VERSION "1.0"
31
32/*
33 * This function is called by interface specific interrupt handler.
34 * It updates Power Save & Host Sleep states, and wakes up the main
35 * thread.
36 */
37void btmrvl_interrupt(struct btmrvl_private *priv)
38{
Bing Zhao132ff4e2009-06-02 14:29:35 -070039 priv->adapter->ps_state = PS_AWAKE;
40
41 priv->adapter->wakeup_tries = 0;
42
43 priv->adapter->int_count++;
44
Amitkumar Karwar4c79e1d2014-11-19 01:28:34 -080045 if (priv->adapter->hs_state == HS_ACTIVATED) {
Amitkumar Karwar7365d472014-11-24 02:40:52 -080046 BT_DBG("BT: HS DEACTIVATED in ISR!");
Amitkumar Karwar4c79e1d2014-11-19 01:28:34 -080047 priv->adapter->hs_state = HS_DEACTIVATED;
48 }
49
Bing Zhao132ff4e2009-06-02 14:29:35 -070050 wake_up_interruptible(&priv->main_thread.wait_q);
Bing Zhao132ff4e2009-06-02 14:29:35 -070051}
52EXPORT_SYMBOL_GPL(btmrvl_interrupt);
53
Andrei Emeltchenkoea1e76a2012-06-13 13:35:44 +030054bool btmrvl_check_evtpkt(struct btmrvl_private *priv, struct sk_buff *skb)
Bing Zhao132ff4e2009-06-02 14:29:35 -070055{
Marcel Holtmann4271e082009-06-09 16:00:22 +020056 struct hci_event_hdr *hdr = (void *) skb->data;
Bing Zhao132ff4e2009-06-02 14:29:35 -070057
Bing Zhao132ff4e2009-06-02 14:29:35 -070058 if (hdr->evt == HCI_EV_CMD_COMPLETE) {
Andrei Emeltchenko2c2453f2012-07-09 13:57:18 +030059 struct hci_ev_cmd_complete *ec;
Bing Zhao3e4543a2013-10-31 15:08:31 -070060 u16 opcode;
Andrei Emeltchenko2c2453f2012-07-09 13:57:18 +030061
Marcel Holtmann4271e082009-06-09 16:00:22 +020062 ec = (void *) (skb->data + HCI_EVENT_HDR_SIZE);
Bing Zhao132ff4e2009-06-02 14:29:35 -070063 opcode = __le16_to_cpu(ec->opcode);
Andrei Emeltchenkoea1e76a2012-06-13 13:35:44 +030064
Amitkumar Karwarc0378742013-10-01 12:19:12 -070065 if (priv->btmrvl_dev.sendcmdflag) {
Bing Zhao132ff4e2009-06-02 14:29:35 -070066 priv->btmrvl_dev.sendcmdflag = false;
67 priv->adapter->cmd_complete = true;
68 wake_up_interruptible(&priv->adapter->cmd_wait_q);
Andrei Emeltchenkoea1e76a2012-06-13 13:35:44 +030069
Amitkumar Karward986b4a2014-03-20 20:05:44 -070070 if (hci_opcode_ogf(opcode) == 0x3F) {
71 BT_DBG("vendor event skipped: opcode=%#4.4x",
72 opcode);
73 kfree_skb(skb);
74 return false;
75 }
Andrei Emeltchenkoea1e76a2012-06-13 13:35:44 +030076 }
Bing Zhao132ff4e2009-06-02 14:29:35 -070077 }
Andrei Emeltchenkoea1e76a2012-06-13 13:35:44 +030078
79 return true;
Bing Zhao132ff4e2009-06-02 14:29:35 -070080}
81EXPORT_SYMBOL_GPL(btmrvl_check_evtpkt);
82
83int btmrvl_process_event(struct btmrvl_private *priv, struct sk_buff *skb)
84{
85 struct btmrvl_adapter *adapter = priv->adapter;
Bing Zhao132ff4e2009-06-02 14:29:35 -070086 struct btmrvl_event *event;
Dan Carpenter31f085f2010-03-08 15:15:59 +030087 int ret = 0;
Bing Zhao132ff4e2009-06-02 14:29:35 -070088
Bing Zhao132ff4e2009-06-02 14:29:35 -070089 event = (struct btmrvl_event *) skb->data;
90 if (event->ec != 0xff) {
91 BT_DBG("Not Marvell Event=%x", event->ec);
92 ret = -EINVAL;
93 goto exit;
94 }
95
96 switch (event->data[0]) {
Bing Zhao3e4543a2013-10-31 15:08:31 -070097 case BT_EVENT_AUTO_SLEEP_MODE:
Bing Zhao132ff4e2009-06-02 14:29:35 -070098 if (!event->data[2]) {
99 if (event->data[1] == BT_PS_ENABLE)
100 adapter->psmode = 1;
101 else
102 adapter->psmode = 0;
103 BT_DBG("PS Mode:%s",
104 (adapter->psmode) ? "Enable" : "Disable");
105 } else {
106 BT_DBG("PS Mode command failed");
107 }
108 break;
109
Bing Zhao3e4543a2013-10-31 15:08:31 -0700110 case BT_EVENT_HOST_SLEEP_CONFIG:
Bing Zhao132ff4e2009-06-02 14:29:35 -0700111 if (!event->data[3])
112 BT_DBG("gpio=%x, gap=%x", event->data[1],
Marcel Holtmann4271e082009-06-09 16:00:22 +0200113 event->data[2]);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700114 else
115 BT_DBG("HSCFG command failed");
116 break;
117
Bing Zhao3e4543a2013-10-31 15:08:31 -0700118 case BT_EVENT_HOST_SLEEP_ENABLE:
Bing Zhao132ff4e2009-06-02 14:29:35 -0700119 if (!event->data[1]) {
120 adapter->hs_state = HS_ACTIVATED;
121 if (adapter->psmode)
122 adapter->ps_state = PS_SLEEP;
Chin-Ran Lo396e04f2014-07-01 14:00:14 -0700123 wake_up_interruptible(&adapter->event_hs_wait_q);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700124 BT_DBG("HS ACTIVATED!");
125 } else {
126 BT_DBG("HS Enable failed");
127 }
128 break;
129
Bing Zhao3e4543a2013-10-31 15:08:31 -0700130 case BT_EVENT_MODULE_CFG_REQ:
Marcel Holtmann4271e082009-06-09 16:00:22 +0200131 if (priv->btmrvl_dev.sendcmdflag &&
132 event->data[1] == MODULE_BRINGUP_REQ) {
Bing Zhao903c8432010-03-03 14:37:35 -0800133 BT_DBG("EVENT:%s",
134 ((event->data[2] == MODULE_BROUGHT_UP) ||
135 (event->data[2] == MODULE_ALREADY_UP)) ?
136 "Bring-up succeed" : "Bring-up failed");
Bing Zhaof120c6b2010-03-03 14:37:37 -0800137
David Vrabel8f1e1742010-08-09 17:38:10 -0400138 if (event->length > 3 && event->data[3])
139 priv->btmrvl_dev.dev_type = HCI_AMP;
Bing Zhaof120c6b2010-03-03 14:37:37 -0800140 else
141 priv->btmrvl_dev.dev_type = HCI_BREDR;
142
143 BT_DBG("dev_type: %d", priv->btmrvl_dev.dev_type);
Marcel Holtmann4271e082009-06-09 16:00:22 +0200144 } else if (priv->btmrvl_dev.sendcmdflag &&
145 event->data[1] == MODULE_SHUTDOWN_REQ) {
Bing Zhao132ff4e2009-06-02 14:29:35 -0700146 BT_DBG("EVENT:%s", (event->data[2]) ?
147 "Shutdown failed" : "Shutdown succeed");
148 } else {
149 BT_DBG("BT_CMD_MODULE_CFG_REQ resp for APP");
150 ret = -EINVAL;
151 }
152 break;
153
154 case BT_EVENT_POWER_STATE:
155 if (event->data[1] == BT_PS_SLEEP)
156 adapter->ps_state = PS_SLEEP;
157 BT_DBG("EVENT:%s",
158 (adapter->ps_state) ? "PS_SLEEP" : "PS_AWAKE");
159 break;
160
161 default:
162 BT_DBG("Unknown Event=%d", event->data[0]);
163 ret = -EINVAL;
164 break;
165 }
166
167exit:
168 if (!ret)
169 kfree_skb(skb);
170
Bing Zhao132ff4e2009-06-02 14:29:35 -0700171 return ret;
172}
173EXPORT_SYMBOL_GPL(btmrvl_process_event);
174
Bing Zhao3e4543a2013-10-31 15:08:31 -0700175static int btmrvl_send_sync_cmd(struct btmrvl_private *priv, u16 opcode,
Amitkumar Karwarc0378742013-10-01 12:19:12 -0700176 const void *param, u8 len)
Bing Zhao132ff4e2009-06-02 14:29:35 -0700177{
Marcel Holtmann4271e082009-06-09 16:00:22 +0200178 struct sk_buff *skb;
Amitkumar Karwar7d5b4002013-10-01 12:19:13 -0700179 struct hci_command_hdr *hdr;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700180
Amitkumar Karwar7b4b8742015-01-01 00:13:41 -0800181 if (priv->surprise_removed) {
182 BT_ERR("Card is removed");
183 return -EFAULT;
184 }
185
Amitkumar Karwar7d5b4002013-10-01 12:19:13 -0700186 skb = bt_skb_alloc(HCI_COMMAND_HDR_SIZE + len, GFP_ATOMIC);
Prasanna Karthik1f438c62015-09-25 09:03:14 +0000187 if (!skb) {
Bing Zhao132ff4e2009-06-02 14:29:35 -0700188 BT_ERR("No free skb");
Marcel Holtmann93742532009-06-13 07:40:18 +0200189 return -ENOMEM;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700190 }
191
Amitkumar Karwar7d5b4002013-10-01 12:19:13 -0700192 hdr = (struct hci_command_hdr *)skb_put(skb, HCI_COMMAND_HDR_SIZE);
Bing Zhao3e4543a2013-10-31 15:08:31 -0700193 hdr->opcode = cpu_to_le16(opcode);
Amitkumar Karwar7d5b4002013-10-01 12:19:13 -0700194 hdr->plen = len;
Amitkumar Karwarc0378742013-10-01 12:19:12 -0700195
196 if (len)
Amitkumar Karwar7d5b4002013-10-01 12:19:13 -0700197 memcpy(skb_put(skb, len), param, len);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700198
199 bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT;
200
Bing Zhao132ff4e2009-06-02 14:29:35 -0700201 skb_queue_head(&priv->adapter->tx_queue, skb);
202
203 priv->btmrvl_dev.sendcmdflag = true;
204
205 priv->adapter->cmd_complete = false;
206
Bing Zhao132ff4e2009-06-02 14:29:35 -0700207 wake_up_interruptible(&priv->main_thread.wait_q);
208
Marcel Holtmann4271e082009-06-09 16:00:22 +0200209 if (!wait_event_interruptible_timeout(priv->adapter->cmd_wait_q,
Amitkumar Karwara9cc32d2015-01-06 21:36:56 -0800210 priv->adapter->cmd_complete ||
211 priv->surprise_removed,
Amitkumar Karwar0333d6d2015-01-06 21:36:55 -0800212 WAIT_UNTIL_CMD_RESP))
Amitkumar Karwarc0378742013-10-01 12:19:12 -0700213 return -ETIMEDOUT;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700214
Amitkumar Karwara9cc32d2015-01-06 21:36:56 -0800215 if (priv->surprise_removed)
216 return -EFAULT;
217
Amitkumar Karwarc0378742013-10-01 12:19:12 -0700218 return 0;
219}
220
Petri Gynther7125df52014-04-15 13:00:00 -0700221int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, u8 subcmd)
Amitkumar Karwarc0378742013-10-01 12:19:12 -0700222{
223 int ret;
224
225 ret = btmrvl_send_sync_cmd(priv, BT_CMD_MODULE_CFG_REQ, &subcmd, 1);
226 if (ret)
Amitkumar Karwar7365d472014-11-24 02:40:52 -0800227 BT_ERR("module_cfg_cmd(%x) failed", subcmd);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700228
Bing Zhao132ff4e2009-06-02 14:29:35 -0700229 return ret;
230}
231EXPORT_SYMBOL_GPL(btmrvl_send_module_cfg_cmd);
232
Amitkumar Karwara715d112015-02-10 05:49:41 -0800233static int btmrvl_enable_sco_routing_to_host(struct btmrvl_private *priv)
234{
235 int ret;
236 u8 subcmd = 0;
237
238 ret = btmrvl_send_sync_cmd(priv, BT_CMD_ROUTE_SCO_TO_HOST, &subcmd, 1);
239 if (ret)
240 BT_ERR("BT_CMD_ROUTE_SCO_TO_HOST command failed: %#x", ret);
241
242 return ret;
243}
244
Bing Zhao4df82b52014-03-31 14:41:44 -0700245int btmrvl_pscan_window_reporting(struct btmrvl_private *priv, u8 subcmd)
246{
247 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
248 int ret;
249
250 if (!card->support_pscan_win_report)
251 return 0;
252
253 ret = btmrvl_send_sync_cmd(priv, BT_CMD_PSCAN_WIN_REPORT_ENABLE,
254 &subcmd, 1);
255 if (ret)
256 BT_ERR("PSCAN_WIN_REPORT_ENABLE command failed: %#x", ret);
257
258 return ret;
259}
260EXPORT_SYMBOL_GPL(btmrvl_pscan_window_reporting);
261
Amitkumar Karwar2a8ff612012-04-24 16:31:40 -0700262int btmrvl_send_hscfg_cmd(struct btmrvl_private *priv)
263{
Amitkumar Karwarc0378742013-10-01 12:19:12 -0700264 int ret;
265 u8 param[2];
Amitkumar Karwar2a8ff612012-04-24 16:31:40 -0700266
Amitkumar Karwarc0378742013-10-01 12:19:12 -0700267 param[0] = (priv->btmrvl_dev.gpio_gap & 0xff00) >> 8;
268 param[1] = (u8) (priv->btmrvl_dev.gpio_gap & 0x00ff);
Amitkumar Karwar2a8ff612012-04-24 16:31:40 -0700269
Amitkumar Karwarc0378742013-10-01 12:19:12 -0700270 BT_DBG("Sending HSCFG Command, gpio=0x%x, gap=0x%x",
271 param[0], param[1]);
Amitkumar Karwar2a8ff612012-04-24 16:31:40 -0700272
Amitkumar Karwarc0378742013-10-01 12:19:12 -0700273 ret = btmrvl_send_sync_cmd(priv, BT_CMD_HOST_SLEEP_CONFIG, param, 2);
274 if (ret)
Amitkumar Karwar7365d472014-11-24 02:40:52 -0800275 BT_ERR("HSCFG command failed");
Amitkumar Karwar2a8ff612012-04-24 16:31:40 -0700276
Amitkumar Karwarc0378742013-10-01 12:19:12 -0700277 return ret;
Amitkumar Karwar2a8ff612012-04-24 16:31:40 -0700278}
279EXPORT_SYMBOL_GPL(btmrvl_send_hscfg_cmd);
280
Amitkumar Karwar32fd6392009-09-30 11:18:30 -0700281int btmrvl_enable_ps(struct btmrvl_private *priv)
282{
Amitkumar Karwarc0378742013-10-01 12:19:12 -0700283 int ret;
284 u8 param;
Amitkumar Karwar32fd6392009-09-30 11:18:30 -0700285
286 if (priv->btmrvl_dev.psmode)
Amitkumar Karwarc0378742013-10-01 12:19:12 -0700287 param = BT_PS_ENABLE;
Amitkumar Karwar32fd6392009-09-30 11:18:30 -0700288 else
Amitkumar Karwarc0378742013-10-01 12:19:12 -0700289 param = BT_PS_DISABLE;
Amitkumar Karwar32fd6392009-09-30 11:18:30 -0700290
Amitkumar Karwarc0378742013-10-01 12:19:12 -0700291 ret = btmrvl_send_sync_cmd(priv, BT_CMD_AUTO_SLEEP_MODE, &param, 1);
292 if (ret)
Amitkumar Karwar7365d472014-11-24 02:40:52 -0800293 BT_ERR("PSMODE command failed");
Amitkumar Karwar32fd6392009-09-30 11:18:30 -0700294
295 return 0;
296}
297EXPORT_SYMBOL_GPL(btmrvl_enable_ps);
298
Amitkumar Karwarba54a162012-04-25 11:43:54 -0700299int btmrvl_enable_hs(struct btmrvl_private *priv)
Bing Zhao132ff4e2009-06-02 14:29:35 -0700300{
Chin-Ran Lo396e04f2014-07-01 14:00:14 -0700301 struct btmrvl_adapter *adapter = priv->adapter;
Amitkumar Karwarc0378742013-10-01 12:19:12 -0700302 int ret;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700303
Amitkumar Karwarc0378742013-10-01 12:19:12 -0700304 ret = btmrvl_send_sync_cmd(priv, BT_CMD_HOST_SLEEP_ENABLE, NULL, 0);
Chin-Ran Lo396e04f2014-07-01 14:00:14 -0700305 if (ret) {
Amitkumar Karwar7365d472014-11-24 02:40:52 -0800306 BT_ERR("Host sleep enable command failed");
Chin-Ran Lo396e04f2014-07-01 14:00:14 -0700307 return ret;
308 }
309
310 ret = wait_event_interruptible_timeout(adapter->event_hs_wait_q,
Amitkumar Karwara9cc32d2015-01-06 21:36:56 -0800311 adapter->hs_state ||
312 priv->surprise_removed,
Amitkumar Karwar0333d6d2015-01-06 21:36:55 -0800313 WAIT_UNTIL_HS_STATE_CHANGED);
Amitkumar Karwara9cc32d2015-01-06 21:36:56 -0800314 if (ret < 0 || priv->surprise_removed) {
Chin-Ran Lo396e04f2014-07-01 14:00:14 -0700315 BT_ERR("event_hs_wait_q terminated (%d): %d,%d,%d",
316 ret, adapter->hs_state, adapter->ps_state,
317 adapter->wakeup_tries);
318 } else if (!ret) {
319 BT_ERR("hs_enable timeout: %d,%d,%d", adapter->hs_state,
320 adapter->ps_state, adapter->wakeup_tries);
321 ret = -ETIMEDOUT;
322 } else {
323 BT_DBG("host sleep enabled: %d,%d,%d", adapter->hs_state,
324 adapter->ps_state, adapter->wakeup_tries);
325 ret = 0;
326 }
Bing Zhao132ff4e2009-06-02 14:29:35 -0700327
Bing Zhao132ff4e2009-06-02 14:29:35 -0700328 return ret;
329}
Amitkumar Karwarba54a162012-04-25 11:43:54 -0700330EXPORT_SYMBOL_GPL(btmrvl_enable_hs);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700331
332int btmrvl_prepare_command(struct btmrvl_private *priv)
333{
Marcel Holtmann93742532009-06-13 07:40:18 +0200334 int ret = 0;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700335
336 if (priv->btmrvl_dev.hscfgcmd) {
337 priv->btmrvl_dev.hscfgcmd = 0;
Amitkumar Karwar2a8ff612012-04-24 16:31:40 -0700338 btmrvl_send_hscfg_cmd(priv);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700339 }
340
341 if (priv->btmrvl_dev.pscmd) {
342 priv->btmrvl_dev.pscmd = 0;
Amitkumar Karwar32fd6392009-09-30 11:18:30 -0700343 btmrvl_enable_ps(priv);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700344 }
345
346 if (priv->btmrvl_dev.hscmd) {
347 priv->btmrvl_dev.hscmd = 0;
348
349 if (priv->btmrvl_dev.hsmode) {
350 ret = btmrvl_enable_hs(priv);
351 } else {
352 ret = priv->hw_wakeup_firmware(priv);
353 priv->adapter->hs_state = HS_DEACTIVATED;
Amitkumar Karwar7365d472014-11-24 02:40:52 -0800354 BT_DBG("BT: HS DEACTIVATED due to host activity!");
Bing Zhao132ff4e2009-06-02 14:29:35 -0700355 }
356 }
357
Bing Zhao132ff4e2009-06-02 14:29:35 -0700358 return ret;
359}
360
Xinming Hudc759612014-11-24 02:40:53 -0800361void btmrvl_firmware_dump(struct btmrvl_private *priv)
362{
363 if (priv->firmware_dump)
364 priv->firmware_dump(priv);
365}
366
Bing Zhao132ff4e2009-06-02 14:29:35 -0700367static int btmrvl_tx_pkt(struct btmrvl_private *priv, struct sk_buff *skb)
368{
Marcel Holtmann93742532009-06-13 07:40:18 +0200369 int ret = 0;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700370
Marcel Holtmann93742532009-06-13 07:40:18 +0200371 if (!skb || !skb->data)
Bing Zhao132ff4e2009-06-02 14:29:35 -0700372 return -EINVAL;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700373
374 if (!skb->len || ((skb->len + BTM_HEADER_LEN) > BTM_UPLD_SIZE)) {
375 BT_ERR("Tx Error: Bad skb length %d : %d",
Marcel Holtmann4271e082009-06-09 16:00:22 +0200376 skb->len, BTM_UPLD_SIZE);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700377 return -EINVAL;
378 }
379
Bing Zhao132ff4e2009-06-02 14:29:35 -0700380 skb_push(skb, BTM_HEADER_LEN);
381
382 /* header type: byte[3]
383 * HCI_COMMAND = 1, ACL_DATA = 2, SCO_DATA = 3, 0xFE = Vendor
384 * header length: byte[2][1][0]
385 */
386
387 skb->data[0] = (skb->len & 0x0000ff);
388 skb->data[1] = (skb->len & 0x00ff00) >> 8;
389 skb->data[2] = (skb->len & 0xff0000) >> 16;
390 skb->data[3] = bt_cb(skb)->pkt_type;
391
392 if (priv->hw_host_to_card)
393 ret = priv->hw_host_to_card(priv, skb->data, skb->len);
394
Bing Zhao132ff4e2009-06-02 14:29:35 -0700395 return ret;
396}
397
398static void btmrvl_init_adapter(struct btmrvl_private *priv)
399{
Bing Zhao0d367402014-03-28 14:54:39 -0700400 int buf_size;
401
Bing Zhao132ff4e2009-06-02 14:29:35 -0700402 skb_queue_head_init(&priv->adapter->tx_queue);
403
404 priv->adapter->ps_state = PS_AWAKE;
405
Bing Zhao0d367402014-03-28 14:54:39 -0700406 buf_size = ALIGN_SZ(SDIO_BLOCK_SIZE, BTSDIO_DMA_ALIGN);
407 priv->adapter->hw_regs_buf = kzalloc(buf_size, GFP_KERNEL);
408 if (!priv->adapter->hw_regs_buf) {
409 priv->adapter->hw_regs = NULL;
410 BT_ERR("Unable to allocate buffer for hw_regs.");
411 } else {
412 priv->adapter->hw_regs =
413 (u8 *)ALIGN_ADDR(priv->adapter->hw_regs_buf,
414 BTSDIO_DMA_ALIGN);
415 BT_DBG("hw_regs_buf=%p hw_regs=%p",
416 priv->adapter->hw_regs_buf, priv->adapter->hw_regs);
417 }
418
Bing Zhao132ff4e2009-06-02 14:29:35 -0700419 init_waitqueue_head(&priv->adapter->cmd_wait_q);
Chin-Ran Lo396e04f2014-07-01 14:00:14 -0700420 init_waitqueue_head(&priv->adapter->event_hs_wait_q);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700421}
422
423static void btmrvl_free_adapter(struct btmrvl_private *priv)
424{
Bing Zhao132ff4e2009-06-02 14:29:35 -0700425 skb_queue_purge(&priv->adapter->tx_queue);
426
Bing Zhao0d367402014-03-28 14:54:39 -0700427 kfree(priv->adapter->hw_regs_buf);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700428 kfree(priv->adapter);
429
430 priv->adapter = NULL;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700431}
432
Marcel Holtmann7bd8f092013-10-11 06:19:18 -0700433static int btmrvl_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
Bing Zhao132ff4e2009-06-02 14:29:35 -0700434{
Marcel Holtmann7648d282013-10-11 07:01:00 -0700435 struct btmrvl_private *priv = hci_get_drvdata(hdev);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700436
Marcel Holtmann93742532009-06-13 07:40:18 +0200437 BT_DBG("type=%d, len=%d", skb->pkt_type, skb->len);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700438
Bing Zhao132ff4e2009-06-02 14:29:35 -0700439 switch (bt_cb(skb)->pkt_type) {
440 case HCI_COMMAND_PKT:
441 hdev->stat.cmd_tx++;
442 break;
443
444 case HCI_ACLDATA_PKT:
445 hdev->stat.acl_tx++;
446 break;
447
448 case HCI_SCODATA_PKT:
449 hdev->stat.sco_tx++;
450 break;
451 }
452
453 skb_queue_tail(&priv->adapter->tx_queue, skb);
454
455 wake_up_interruptible(&priv->main_thread.wait_q);
456
Bing Zhao132ff4e2009-06-02 14:29:35 -0700457 return 0;
458}
459
460static int btmrvl_flush(struct hci_dev *hdev)
461{
David Herrmann155961e2012-02-09 21:58:32 +0100462 struct btmrvl_private *priv = hci_get_drvdata(hdev);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700463
Bing Zhao132ff4e2009-06-02 14:29:35 -0700464 skb_queue_purge(&priv->adapter->tx_queue);
465
Bing Zhao132ff4e2009-06-02 14:29:35 -0700466 return 0;
467}
468
469static int btmrvl_close(struct hci_dev *hdev)
470{
David Herrmann155961e2012-02-09 21:58:32 +0100471 struct btmrvl_private *priv = hci_get_drvdata(hdev);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700472
Bing Zhao132ff4e2009-06-02 14:29:35 -0700473 skb_queue_purge(&priv->adapter->tx_queue);
474
Bing Zhao132ff4e2009-06-02 14:29:35 -0700475 return 0;
476}
477
478static int btmrvl_open(struct hci_dev *hdev)
479{
Bing Zhao132ff4e2009-06-02 14:29:35 -0700480 return 0;
481}
482
Bing Zhao433a9382013-11-01 15:28:24 -0700483static int btmrvl_download_cal_data(struct btmrvl_private *priv,
Bing Zhao8a4934f2013-11-01 15:28:25 -0700484 u8 *data, int len)
Amitkumar Karwar2cc86892013-10-01 12:19:15 -0700485{
Bing Zhao8a4934f2013-11-01 15:28:25 -0700486 int ret;
Amitkumar Karwar2cc86892013-10-01 12:19:15 -0700487
488 data[0] = 0x00;
489 data[1] = 0x00;
490 data[2] = 0x00;
Bing Zhao8a4934f2013-11-01 15:28:25 -0700491 data[3] = len;
Amitkumar Karwar2cc86892013-10-01 12:19:15 -0700492
493 print_hex_dump_bytes("Calibration data: ",
Bing Zhao8a4934f2013-11-01 15:28:25 -0700494 DUMP_PREFIX_OFFSET, data, BT_CAL_HDR_LEN + len);
Amitkumar Karwar2cc86892013-10-01 12:19:15 -0700495
496 ret = btmrvl_send_sync_cmd(priv, BT_CMD_LOAD_CONFIG_DATA, data,
Bing Zhao8a4934f2013-11-01 15:28:25 -0700497 BT_CAL_HDR_LEN + len);
Amitkumar Karwar2cc86892013-10-01 12:19:15 -0700498 if (ret)
Amitkumar Karwar7365d472014-11-24 02:40:52 -0800499 BT_ERR("Failed to download caibration data");
Amitkumar Karwar2cc86892013-10-01 12:19:15 -0700500
501 return 0;
502}
503
Amitkumar Karwar025a60a2014-11-19 01:28:33 -0800504static int btmrvl_check_device_tree(struct btmrvl_private *priv)
Amitkumar Karwar2cc86892013-10-01 12:19:15 -0700505{
Bing Zhao433a9382013-11-01 15:28:24 -0700506 struct device_node *dt_node;
Bing Zhao8a4934f2013-11-01 15:28:25 -0700507 u8 cal_data[BT_CAL_HDR_LEN + BT_CAL_DATA_SIZE];
Amitkumar Karwar2cc86892013-10-01 12:19:15 -0700508 int ret;
Amitkumar Karwar025a60a2014-11-19 01:28:33 -0800509 u32 val;
Amitkumar Karwar2cc86892013-10-01 12:19:15 -0700510
Amitkumar Karwar098ea6b2014-11-19 01:28:32 -0800511 for_each_compatible_node(dt_node, NULL, "btmrvl,cfgdata") {
Amitkumar Karwar025a60a2014-11-19 01:28:33 -0800512 ret = of_property_read_u32(dt_node, "btmrvl,gpio-gap", &val);
513 if (!ret)
514 priv->btmrvl_dev.gpio_gap = val;
515
Amitkumar Karwar098ea6b2014-11-19 01:28:32 -0800516 ret = of_property_read_u8_array(dt_node, "btmrvl,cal-data",
517 cal_data + BT_CAL_HDR_LEN,
518 BT_CAL_DATA_SIZE);
Julia Lawallc0859e22015-10-24 16:42:32 +0200519 if (ret) {
520 of_node_put(dt_node);
Amitkumar Karwar098ea6b2014-11-19 01:28:32 -0800521 return ret;
Julia Lawallc0859e22015-10-24 16:42:32 +0200522 }
Bing Zhao433a9382013-11-01 15:28:24 -0700523
Amitkumar Karwar098ea6b2014-11-19 01:28:32 -0800524 BT_DBG("Use cal data from device tree");
525 ret = btmrvl_download_cal_data(priv, cal_data,
526 BT_CAL_DATA_SIZE);
527 if (ret) {
528 BT_ERR("Fail to download calibrate data");
Julia Lawallc0859e22015-10-24 16:42:32 +0200529 of_node_put(dt_node);
Amitkumar Karwar098ea6b2014-11-19 01:28:32 -0800530 return ret;
531 }
Amitkumar Karwar2cc86892013-10-01 12:19:15 -0700532 }
533
534 return 0;
535}
536
Amitkumar Karwar4b245722013-10-01 12:19:14 -0700537static int btmrvl_setup(struct hci_dev *hdev)
538{
539 struct btmrvl_private *priv = hci_get_drvdata(hdev);
Amitkumar Karwar9b89fdf2015-01-01 00:13:40 -0800540 int ret;
Amitkumar Karwar4b245722013-10-01 12:19:14 -0700541
Amitkumar Karwar9b89fdf2015-01-01 00:13:40 -0800542 ret = btmrvl_send_module_cfg_cmd(priv, MODULE_BRINGUP_REQ);
543 if (ret)
544 return ret;
Amitkumar Karwar4b245722013-10-01 12:19:14 -0700545
Amitkumar Karwar025a60a2014-11-19 01:28:33 -0800546 priv->btmrvl_dev.gpio_gap = 0xffff;
547
548 btmrvl_check_device_tree(priv);
Amitkumar Karwar2cc86892013-10-01 12:19:15 -0700549
Amitkumar Karwara715d112015-02-10 05:49:41 -0800550 btmrvl_enable_sco_routing_to_host(priv);
551
Bing Zhao4df82b52014-03-31 14:41:44 -0700552 btmrvl_pscan_window_reporting(priv, 0x01);
553
Amitkumar Karwar4b245722013-10-01 12:19:14 -0700554 priv->btmrvl_dev.psmode = 1;
555 btmrvl_enable_ps(priv);
556
Amitkumar Karwar4b245722013-10-01 12:19:14 -0700557 btmrvl_send_hscfg_cmd(priv);
558
559 return 0;
560}
561
Amitkumar Karwar27b869f2014-07-18 14:47:07 -0700562static int btmrvl_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr)
563{
564 struct sk_buff *skb;
565 long ret;
566 u8 buf[8];
567
568 buf[0] = MRVL_VENDOR_PKT;
569 buf[1] = sizeof(bdaddr_t);
570 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
571
572 skb = __hci_cmd_sync(hdev, BT_CMD_SET_BDADDR, sizeof(buf), buf,
573 HCI_INIT_TIMEOUT);
574 if (IS_ERR(skb)) {
575 ret = PTR_ERR(skb);
576 BT_ERR("%s: changing btmrvl device address failed (%ld)",
577 hdev->name, ret);
578 return ret;
579 }
580 kfree_skb(skb);
581
582 return 0;
583}
584
Bing Zhao132ff4e2009-06-02 14:29:35 -0700585/*
586 * This function handles the event generated by firmware, rx data
587 * received from firmware, and tx data sent from kernel.
588 */
589static int btmrvl_service_main_thread(void *data)
590{
591 struct btmrvl_thread *thread = data;
592 struct btmrvl_private *priv = thread->priv;
593 struct btmrvl_adapter *adapter = priv->adapter;
594 wait_queue_t wait;
595 struct sk_buff *skb;
596 ulong flags;
597
Bing Zhao132ff4e2009-06-02 14:29:35 -0700598 init_waitqueue_entry(&wait, current);
599
Bing Zhao132ff4e2009-06-02 14:29:35 -0700600 for (;;) {
601 add_wait_queue(&thread->wait_q, &wait);
602
603 set_current_state(TASK_INTERRUPTIBLE);
Amitkumar Karwar7b4b8742015-01-01 00:13:41 -0800604 if (kthread_should_stop() || priv->surprise_removed) {
Daniel Drakeea05fea2013-06-11 15:40:20 -0400605 BT_DBG("main_thread: break from main thread");
606 break;
607 }
Bing Zhao132ff4e2009-06-02 14:29:35 -0700608
609 if (adapter->wakeup_tries ||
Marcel Holtmann4271e082009-06-09 16:00:22 +0200610 ((!adapter->int_count) &&
611 (!priv->btmrvl_dev.tx_dnld_rdy ||
612 skb_queue_empty(&adapter->tx_queue)))) {
Bing Zhao132ff4e2009-06-02 14:29:35 -0700613 BT_DBG("main_thread is sleeping...");
614 schedule();
615 }
616
617 set_current_state(TASK_RUNNING);
618
619 remove_wait_queue(&thread->wait_q, &wait);
620
621 BT_DBG("main_thread woke up");
622
Amitkumar Karwar7b4b8742015-01-01 00:13:41 -0800623 if (kthread_should_stop() || priv->surprise_removed) {
Amitkumar Karwar8b324fa2015-01-01 00:13:39 -0800624 BT_DBG("main_thread: break from main thread");
625 break;
626 }
627
Bing Zhao132ff4e2009-06-02 14:29:35 -0700628 spin_lock_irqsave(&priv->driver_lock, flags);
629 if (adapter->int_count) {
630 adapter->int_count = 0;
Amitkumar Karward1d10d72010-05-27 16:38:37 -0700631 spin_unlock_irqrestore(&priv->driver_lock, flags);
632 priv->hw_process_int_status(priv);
Marcel Holtmann4271e082009-06-09 16:00:22 +0200633 } else if (adapter->ps_state == PS_SLEEP &&
634 !skb_queue_empty(&adapter->tx_queue)) {
Bing Zhao132ff4e2009-06-02 14:29:35 -0700635 spin_unlock_irqrestore(&priv->driver_lock, flags);
636 adapter->wakeup_tries++;
637 priv->hw_wakeup_firmware(priv);
638 continue;
Amitkumar Karward1d10d72010-05-27 16:38:37 -0700639 } else {
640 spin_unlock_irqrestore(&priv->driver_lock, flags);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700641 }
Bing Zhao132ff4e2009-06-02 14:29:35 -0700642
643 if (adapter->ps_state == PS_SLEEP)
644 continue;
645
646 if (!priv->btmrvl_dev.tx_dnld_rdy)
647 continue;
648
649 skb = skb_dequeue(&adapter->tx_queue);
650 if (skb) {
651 if (btmrvl_tx_pkt(priv, skb))
652 priv->btmrvl_dev.hcidev->stat.err_tx++;
653 else
Marcel Holtmann4271e082009-06-09 16:00:22 +0200654 priv->btmrvl_dev.hcidev->stat.byte_tx += skb->len;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700655
656 kfree_skb(skb);
657 }
658 }
659
Bing Zhao132ff4e2009-06-02 14:29:35 -0700660 return 0;
661}
662
Bing Zhao64061602010-03-03 14:37:36 -0800663int btmrvl_register_hdev(struct btmrvl_private *priv)
Bing Zhao132ff4e2009-06-02 14:29:35 -0700664{
665 struct hci_dev *hdev = NULL;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700666 int ret;
667
Bing Zhao64061602010-03-03 14:37:36 -0800668 hdev = hci_alloc_dev();
669 if (!hdev) {
670 BT_ERR("Can not allocate HCI device");
671 goto err_hdev;
672 }
673
674 priv->btmrvl_dev.hcidev = hdev;
David Herrmann155961e2012-02-09 21:58:32 +0100675 hci_set_drvdata(hdev, priv);
Bing Zhao64061602010-03-03 14:37:36 -0800676
Marcel Holtmanne93ac9c2013-10-10 10:50:05 -0700677 hdev->bus = HCI_SDIO;
678 hdev->open = btmrvl_open;
Bing Zhao64061602010-03-03 14:37:36 -0800679 hdev->close = btmrvl_close;
680 hdev->flush = btmrvl_flush;
Marcel Holtmanne93ac9c2013-10-10 10:50:05 -0700681 hdev->send = btmrvl_send_frame;
Amitkumar Karwar4b245722013-10-01 12:19:14 -0700682 hdev->setup = btmrvl_setup;
Amitkumar Karwar27b869f2014-07-18 14:47:07 -0700683 hdev->set_bdaddr = btmrvl_set_bdaddr;
Bing Zhao64061602010-03-03 14:37:36 -0800684
Bing Zhaof120c6b2010-03-03 14:37:37 -0800685 hdev->dev_type = priv->btmrvl_dev.dev_type;
686
Bing Zhao64061602010-03-03 14:37:36 -0800687 ret = hci_register_dev(hdev);
688 if (ret < 0) {
689 BT_ERR("Can not register HCI device");
690 goto err_hci_register_dev;
691 }
692
693#ifdef CONFIG_DEBUG_FS
694 btmrvl_debugfs_init(hdev);
695#endif
696
697 return 0;
698
699err_hci_register_dev:
700 hci_free_dev(hdev);
701
702err_hdev:
703 /* Stop the thread servicing the interrupts */
704 kthread_stop(priv->main_thread.task);
705
706 btmrvl_free_adapter(priv);
707 kfree(priv);
708
709 return -ENOMEM;
710}
711EXPORT_SYMBOL_GPL(btmrvl_register_hdev);
712
713struct btmrvl_private *btmrvl_add_card(void *card)
714{
715 struct btmrvl_private *priv;
716
Bing Zhao132ff4e2009-06-02 14:29:35 -0700717 priv = kzalloc(sizeof(*priv), GFP_KERNEL);
718 if (!priv) {
719 BT_ERR("Can not allocate priv");
720 goto err_priv;
721 }
722
723 priv->adapter = kzalloc(sizeof(*priv->adapter), GFP_KERNEL);
724 if (!priv->adapter) {
725 BT_ERR("Allocate buffer for btmrvl_adapter failed!");
726 goto err_adapter;
727 }
728
729 btmrvl_init_adapter(priv);
730
Bing Zhao132ff4e2009-06-02 14:29:35 -0700731 BT_DBG("Starting kthread...");
732 priv->main_thread.priv = priv;
733 spin_lock_init(&priv->driver_lock);
734
735 init_waitqueue_head(&priv->main_thread.wait_q);
736 priv->main_thread.task = kthread_run(btmrvl_service_main_thread,
Marcel Holtmann4271e082009-06-09 16:00:22 +0200737 &priv->main_thread, "btmrvl_main_service");
Anatol Pomozov8500d792014-07-30 15:57:03 -0700738 if (IS_ERR(priv->main_thread.task))
739 goto err_thread;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700740
Bing Zhao132ff4e2009-06-02 14:29:35 -0700741 priv->btmrvl_dev.card = card;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700742 priv->btmrvl_dev.tx_dnld_rdy = true;
743
Bing Zhao132ff4e2009-06-02 14:29:35 -0700744 return priv;
745
Anatol Pomozov8500d792014-07-30 15:57:03 -0700746err_thread:
747 btmrvl_free_adapter(priv);
748
Bing Zhao132ff4e2009-06-02 14:29:35 -0700749err_adapter:
750 kfree(priv);
751
752err_priv:
Bing Zhao132ff4e2009-06-02 14:29:35 -0700753 return NULL;
754}
755EXPORT_SYMBOL_GPL(btmrvl_add_card);
756
757int btmrvl_remove_card(struct btmrvl_private *priv)
758{
759 struct hci_dev *hdev;
760
Bing Zhao132ff4e2009-06-02 14:29:35 -0700761 hdev = priv->btmrvl_dev.hcidev;
762
763 wake_up_interruptible(&priv->adapter->cmd_wait_q);
Chin-Ran Lo396e04f2014-07-01 14:00:14 -0700764 wake_up_interruptible(&priv->adapter->event_hs_wait_q);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700765
766 kthread_stop(priv->main_thread.task);
767
Bing Zhaofb784f02009-06-02 14:29:37 -0700768#ifdef CONFIG_DEBUG_FS
769 btmrvl_debugfs_remove(hdev);
770#endif
771
Bing Zhao132ff4e2009-06-02 14:29:35 -0700772 hci_unregister_dev(hdev);
773
774 hci_free_dev(hdev);
775
776 priv->btmrvl_dev.hcidev = NULL;
777
778 btmrvl_free_adapter(priv);
779
780 kfree(priv);
781
Bing Zhao132ff4e2009-06-02 14:29:35 -0700782 return 0;
783}
784EXPORT_SYMBOL_GPL(btmrvl_remove_card);
785
786MODULE_AUTHOR("Marvell International Ltd.");
Marcel Holtmann9666fb32009-06-09 21:45:04 +0200787MODULE_DESCRIPTION("Marvell Bluetooth driver ver " VERSION);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700788MODULE_VERSION(VERSION);
789MODULE_LICENSE("GPL v2");