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806 lines
18 KiB
806 lines
18 KiB
/** |
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* Marvell Bluetooth driver |
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* |
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* Copyright (C) 2009, Marvell International Ltd. |
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* |
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* This software file (the "File") is distributed by Marvell International |
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* Ltd. under the terms of the GNU General Public License Version 2, June 1991 |
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* (the "License"). You may use, redistribute and/or modify this File in |
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* accordance with the terms and conditions of the License, a copy of which |
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* is available by writing to the Free Software Foundation, Inc., |
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the |
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* worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. |
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* |
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* |
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* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE |
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* ARE EXPRESSLY DISCLAIMED. The License provides additional details about |
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* this warranty disclaimer. |
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**/ |
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|
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#include <linux/module.h> |
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#include <linux/of.h> |
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#include <net/bluetooth/bluetooth.h> |
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#include <net/bluetooth/hci_core.h> |
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#include <linux/mmc/sdio_func.h> |
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#include "btmrvl_drv.h" |
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#include "btmrvl_sdio.h" |
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#define VERSION "1.0" |
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|
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/* |
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* This function is called by interface specific interrupt handler. |
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* It updates Power Save & Host Sleep states, and wakes up the main |
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* thread. |
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*/ |
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void btmrvl_interrupt(struct btmrvl_private *priv) |
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{ |
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priv->adapter->ps_state = PS_AWAKE; |
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priv->adapter->wakeup_tries = 0; |
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priv->adapter->int_count++; |
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if (priv->adapter->hs_state == HS_ACTIVATED) { |
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BT_DBG("BT: HS DEACTIVATED in ISR!"); |
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priv->adapter->hs_state = HS_DEACTIVATED; |
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} |
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wake_up_interruptible(&priv->main_thread.wait_q); |
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} |
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EXPORT_SYMBOL_GPL(btmrvl_interrupt); |
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bool btmrvl_check_evtpkt(struct btmrvl_private *priv, struct sk_buff *skb) |
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{ |
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struct hci_event_hdr *hdr = (void *) skb->data; |
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if (hdr->evt == HCI_EV_CMD_COMPLETE) { |
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struct hci_ev_cmd_complete *ec; |
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u16 opcode; |
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ec = (void *) (skb->data + HCI_EVENT_HDR_SIZE); |
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opcode = __le16_to_cpu(ec->opcode); |
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if (priv->btmrvl_dev.sendcmdflag) { |
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priv->btmrvl_dev.sendcmdflag = false; |
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priv->adapter->cmd_complete = true; |
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wake_up_interruptible(&priv->adapter->cmd_wait_q); |
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if (hci_opcode_ogf(opcode) == 0x3F) { |
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BT_DBG("vendor event skipped: opcode=%#4.4x", |
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opcode); |
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kfree_skb(skb); |
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return false; |
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} |
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} |
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} |
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return true; |
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} |
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EXPORT_SYMBOL_GPL(btmrvl_check_evtpkt); |
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int btmrvl_process_event(struct btmrvl_private *priv, struct sk_buff *skb) |
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{ |
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struct btmrvl_adapter *adapter = priv->adapter; |
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struct btmrvl_event *event; |
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int ret = 0; |
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event = (struct btmrvl_event *) skb->data; |
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if (event->ec != 0xff) { |
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BT_DBG("Not Marvell Event=%x", event->ec); |
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ret = -EINVAL; |
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goto exit; |
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} |
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switch (event->data[0]) { |
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case BT_EVENT_AUTO_SLEEP_MODE: |
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if (!event->data[2]) { |
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if (event->data[1] == BT_PS_ENABLE) |
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adapter->psmode = 1; |
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else |
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adapter->psmode = 0; |
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BT_DBG("PS Mode:%s", |
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(adapter->psmode) ? "Enable" : "Disable"); |
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} else { |
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BT_DBG("PS Mode command failed"); |
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} |
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break; |
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case BT_EVENT_HOST_SLEEP_CONFIG: |
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if (!event->data[3]) |
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BT_DBG("gpio=%x, gap=%x", event->data[1], |
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event->data[2]); |
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else |
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BT_DBG("HSCFG command failed"); |
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break; |
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case BT_EVENT_HOST_SLEEP_ENABLE: |
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if (!event->data[1]) { |
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adapter->hs_state = HS_ACTIVATED; |
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if (adapter->psmode) |
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adapter->ps_state = PS_SLEEP; |
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wake_up_interruptible(&adapter->event_hs_wait_q); |
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BT_DBG("HS ACTIVATED!"); |
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} else { |
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BT_DBG("HS Enable failed"); |
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} |
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break; |
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case BT_EVENT_MODULE_CFG_REQ: |
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if (priv->btmrvl_dev.sendcmdflag && |
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event->data[1] == MODULE_BRINGUP_REQ) { |
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BT_DBG("EVENT:%s", |
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((event->data[2] == MODULE_BROUGHT_UP) || |
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(event->data[2] == MODULE_ALREADY_UP)) ? |
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"Bring-up succeed" : "Bring-up failed"); |
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if (event->length > 3 && event->data[3]) |
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priv->btmrvl_dev.dev_type = HCI_AMP; |
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else |
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priv->btmrvl_dev.dev_type = HCI_PRIMARY; |
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BT_DBG("dev_type: %d", priv->btmrvl_dev.dev_type); |
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} else if (priv->btmrvl_dev.sendcmdflag && |
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event->data[1] == MODULE_SHUTDOWN_REQ) { |
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BT_DBG("EVENT:%s", (event->data[2]) ? |
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"Shutdown failed" : "Shutdown succeed"); |
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} else { |
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BT_DBG("BT_CMD_MODULE_CFG_REQ resp for APP"); |
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ret = -EINVAL; |
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} |
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break; |
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case BT_EVENT_POWER_STATE: |
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if (event->data[1] == BT_PS_SLEEP) |
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adapter->ps_state = PS_SLEEP; |
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BT_DBG("EVENT:%s", |
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(adapter->ps_state) ? "PS_SLEEP" : "PS_AWAKE"); |
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break; |
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default: |
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BT_DBG("Unknown Event=%d", event->data[0]); |
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ret = -EINVAL; |
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break; |
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} |
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exit: |
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if (!ret) |
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kfree_skb(skb); |
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return ret; |
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} |
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EXPORT_SYMBOL_GPL(btmrvl_process_event); |
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static int btmrvl_send_sync_cmd(struct btmrvl_private *priv, u16 opcode, |
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const void *param, u8 len) |
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{ |
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struct sk_buff *skb; |
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struct hci_command_hdr *hdr; |
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if (priv->surprise_removed) { |
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BT_ERR("Card is removed"); |
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return -EFAULT; |
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} |
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skb = bt_skb_alloc(HCI_COMMAND_HDR_SIZE + len, GFP_KERNEL); |
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if (!skb) { |
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BT_ERR("No free skb"); |
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return -ENOMEM; |
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} |
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hdr = skb_put(skb, HCI_COMMAND_HDR_SIZE); |
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hdr->opcode = cpu_to_le16(opcode); |
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hdr->plen = len; |
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if (len) |
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skb_put_data(skb, param, len); |
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hci_skb_pkt_type(skb) = MRVL_VENDOR_PKT; |
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skb_queue_head(&priv->adapter->tx_queue, skb); |
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priv->btmrvl_dev.sendcmdflag = true; |
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priv->adapter->cmd_complete = false; |
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wake_up_interruptible(&priv->main_thread.wait_q); |
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if (!wait_event_interruptible_timeout(priv->adapter->cmd_wait_q, |
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priv->adapter->cmd_complete || |
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priv->surprise_removed, |
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WAIT_UNTIL_CMD_RESP)) |
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return -ETIMEDOUT; |
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if (priv->surprise_removed) |
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return -EFAULT; |
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return 0; |
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} |
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int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, u8 subcmd) |
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{ |
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int ret; |
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ret = btmrvl_send_sync_cmd(priv, BT_CMD_MODULE_CFG_REQ, &subcmd, 1); |
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if (ret) |
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BT_ERR("module_cfg_cmd(%x) failed", subcmd); |
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return ret; |
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} |
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EXPORT_SYMBOL_GPL(btmrvl_send_module_cfg_cmd); |
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static int btmrvl_enable_sco_routing_to_host(struct btmrvl_private *priv) |
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{ |
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int ret; |
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u8 subcmd = 0; |
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ret = btmrvl_send_sync_cmd(priv, BT_CMD_ROUTE_SCO_TO_HOST, &subcmd, 1); |
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if (ret) |
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BT_ERR("BT_CMD_ROUTE_SCO_TO_HOST command failed: %#x", ret); |
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return ret; |
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} |
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int btmrvl_pscan_window_reporting(struct btmrvl_private *priv, u8 subcmd) |
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{ |
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struct btmrvl_sdio_card *card = priv->btmrvl_dev.card; |
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int ret; |
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if (!card->support_pscan_win_report) |
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return 0; |
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ret = btmrvl_send_sync_cmd(priv, BT_CMD_PSCAN_WIN_REPORT_ENABLE, |
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&subcmd, 1); |
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if (ret) |
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BT_ERR("PSCAN_WIN_REPORT_ENABLE command failed: %#x", ret); |
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return ret; |
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} |
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EXPORT_SYMBOL_GPL(btmrvl_pscan_window_reporting); |
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int btmrvl_send_hscfg_cmd(struct btmrvl_private *priv) |
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{ |
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int ret; |
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u8 param[2]; |
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param[0] = (priv->btmrvl_dev.gpio_gap & 0xff00) >> 8; |
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param[1] = (u8) (priv->btmrvl_dev.gpio_gap & 0x00ff); |
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BT_DBG("Sending HSCFG Command, gpio=0x%x, gap=0x%x", |
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param[0], param[1]); |
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ret = btmrvl_send_sync_cmd(priv, BT_CMD_HOST_SLEEP_CONFIG, param, 2); |
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if (ret) |
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BT_ERR("HSCFG command failed"); |
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return ret; |
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} |
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EXPORT_SYMBOL_GPL(btmrvl_send_hscfg_cmd); |
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int btmrvl_enable_ps(struct btmrvl_private *priv) |
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{ |
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int ret; |
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u8 param; |
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if (priv->btmrvl_dev.psmode) |
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param = BT_PS_ENABLE; |
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else |
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param = BT_PS_DISABLE; |
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ret = btmrvl_send_sync_cmd(priv, BT_CMD_AUTO_SLEEP_MODE, ¶m, 1); |
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if (ret) |
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BT_ERR("PSMODE command failed"); |
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return 0; |
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} |
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EXPORT_SYMBOL_GPL(btmrvl_enable_ps); |
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int btmrvl_enable_hs(struct btmrvl_private *priv) |
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{ |
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struct btmrvl_adapter *adapter = priv->adapter; |
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int ret; |
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ret = btmrvl_send_sync_cmd(priv, BT_CMD_HOST_SLEEP_ENABLE, NULL, 0); |
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if (ret) { |
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BT_ERR("Host sleep enable command failed"); |
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return ret; |
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} |
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ret = wait_event_interruptible_timeout(adapter->event_hs_wait_q, |
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adapter->hs_state || |
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priv->surprise_removed, |
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WAIT_UNTIL_HS_STATE_CHANGED); |
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if (ret < 0 || priv->surprise_removed) { |
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BT_ERR("event_hs_wait_q terminated (%d): %d,%d,%d", |
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ret, adapter->hs_state, adapter->ps_state, |
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adapter->wakeup_tries); |
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} else if (!ret) { |
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BT_ERR("hs_enable timeout: %d,%d,%d", adapter->hs_state, |
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adapter->ps_state, adapter->wakeup_tries); |
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ret = -ETIMEDOUT; |
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} else { |
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BT_DBG("host sleep enabled: %d,%d,%d", adapter->hs_state, |
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adapter->ps_state, adapter->wakeup_tries); |
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ret = 0; |
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} |
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return ret; |
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} |
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EXPORT_SYMBOL_GPL(btmrvl_enable_hs); |
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int btmrvl_prepare_command(struct btmrvl_private *priv) |
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{ |
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int ret = 0; |
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if (priv->btmrvl_dev.hscfgcmd) { |
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priv->btmrvl_dev.hscfgcmd = 0; |
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btmrvl_send_hscfg_cmd(priv); |
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} |
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if (priv->btmrvl_dev.pscmd) { |
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priv->btmrvl_dev.pscmd = 0; |
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btmrvl_enable_ps(priv); |
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} |
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if (priv->btmrvl_dev.hscmd) { |
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priv->btmrvl_dev.hscmd = 0; |
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if (priv->btmrvl_dev.hsmode) { |
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ret = btmrvl_enable_hs(priv); |
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} else { |
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ret = priv->hw_wakeup_firmware(priv); |
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priv->adapter->hs_state = HS_DEACTIVATED; |
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BT_DBG("BT: HS DEACTIVATED due to host activity!"); |
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} |
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} |
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return ret; |
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} |
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static int btmrvl_tx_pkt(struct btmrvl_private *priv, struct sk_buff *skb) |
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{ |
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int ret = 0; |
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if (!skb || !skb->data) |
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return -EINVAL; |
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if (!skb->len || ((skb->len + BTM_HEADER_LEN) > BTM_UPLD_SIZE)) { |
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BT_ERR("Tx Error: Bad skb length %d : %d", |
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skb->len, BTM_UPLD_SIZE); |
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return -EINVAL; |
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} |
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skb_push(skb, BTM_HEADER_LEN); |
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/* header type: byte[3] |
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* HCI_COMMAND = 1, ACL_DATA = 2, SCO_DATA = 3, 0xFE = Vendor |
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* header length: byte[2][1][0] |
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*/ |
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skb->data[0] = (skb->len & 0x0000ff); |
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skb->data[1] = (skb->len & 0x00ff00) >> 8; |
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skb->data[2] = (skb->len & 0xff0000) >> 16; |
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skb->data[3] = hci_skb_pkt_type(skb); |
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if (priv->hw_host_to_card) |
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ret = priv->hw_host_to_card(priv, skb->data, skb->len); |
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return ret; |
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} |
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static void btmrvl_init_adapter(struct btmrvl_private *priv) |
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{ |
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int buf_size; |
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skb_queue_head_init(&priv->adapter->tx_queue); |
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priv->adapter->ps_state = PS_AWAKE; |
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buf_size = ALIGN_SZ(SDIO_BLOCK_SIZE, BTSDIO_DMA_ALIGN); |
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priv->adapter->hw_regs_buf = kzalloc(buf_size, GFP_KERNEL); |
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if (!priv->adapter->hw_regs_buf) { |
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priv->adapter->hw_regs = NULL; |
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BT_ERR("Unable to allocate buffer for hw_regs."); |
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} else { |
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priv->adapter->hw_regs = |
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(u8 *)ALIGN_ADDR(priv->adapter->hw_regs_buf, |
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BTSDIO_DMA_ALIGN); |
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BT_DBG("hw_regs_buf=%p hw_regs=%p", |
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priv->adapter->hw_regs_buf, priv->adapter->hw_regs); |
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} |
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init_waitqueue_head(&priv->adapter->cmd_wait_q); |
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init_waitqueue_head(&priv->adapter->event_hs_wait_q); |
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} |
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static void btmrvl_free_adapter(struct btmrvl_private *priv) |
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{ |
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skb_queue_purge(&priv->adapter->tx_queue); |
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kfree(priv->adapter->hw_regs_buf); |
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kfree(priv->adapter); |
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priv->adapter = NULL; |
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} |
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static int btmrvl_send_frame(struct hci_dev *hdev, struct sk_buff *skb) |
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{ |
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struct btmrvl_private *priv = hci_get_drvdata(hdev); |
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BT_DBG("type=%d, len=%d", hci_skb_pkt_type(skb), skb->len); |
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if (priv->adapter->is_suspending || priv->adapter->is_suspended) { |
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BT_ERR("%s: Device is suspending or suspended", __func__); |
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return -EBUSY; |
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} |
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switch (hci_skb_pkt_type(skb)) { |
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case HCI_COMMAND_PKT: |
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hdev->stat.cmd_tx++; |
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break; |
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case HCI_ACLDATA_PKT: |
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hdev->stat.acl_tx++; |
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break; |
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case HCI_SCODATA_PKT: |
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hdev->stat.sco_tx++; |
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break; |
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} |
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skb_queue_tail(&priv->adapter->tx_queue, skb); |
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if (!priv->adapter->is_suspended) |
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wake_up_interruptible(&priv->main_thread.wait_q); |
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return 0; |
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} |
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static int btmrvl_flush(struct hci_dev *hdev) |
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{ |
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struct btmrvl_private *priv = hci_get_drvdata(hdev); |
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skb_queue_purge(&priv->adapter->tx_queue); |
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return 0; |
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} |
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static int btmrvl_close(struct hci_dev *hdev) |
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{ |
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struct btmrvl_private *priv = hci_get_drvdata(hdev); |
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skb_queue_purge(&priv->adapter->tx_queue); |
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return 0; |
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} |
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static int btmrvl_open(struct hci_dev *hdev) |
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{ |
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return 0; |
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} |
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static int btmrvl_download_cal_data(struct btmrvl_private *priv, |
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u8 *data, int len) |
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{ |
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int ret; |
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|
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data[0] = 0x00; |
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data[1] = 0x00; |
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data[2] = 0x00; |
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data[3] = len; |
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print_hex_dump_bytes("Calibration data: ", |
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DUMP_PREFIX_OFFSET, data, BT_CAL_HDR_LEN + len); |
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ret = btmrvl_send_sync_cmd(priv, BT_CMD_LOAD_CONFIG_DATA, data, |
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BT_CAL_HDR_LEN + len); |
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if (ret) |
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BT_ERR("Failed to download calibration data"); |
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|
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return 0; |
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} |
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|
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static int btmrvl_check_device_tree(struct btmrvl_private *priv) |
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{ |
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struct device_node *dt_node; |
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struct btmrvl_sdio_card *card = priv->btmrvl_dev.card; |
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u8 cal_data[BT_CAL_HDR_LEN + BT_CAL_DATA_SIZE]; |
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int ret = 0; |
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u16 gpio, gap; |
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|
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if (card->plt_of_node) { |
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dt_node = card->plt_of_node; |
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ret = of_property_read_u16(dt_node, "marvell,wakeup-pin", |
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&gpio); |
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if (ret) |
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gpio = (priv->btmrvl_dev.gpio_gap & 0xff00) >> 8; |
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|
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ret = of_property_read_u16(dt_node, "marvell,wakeup-gap-ms", |
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&gap); |
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if (ret) |
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gap = (u8)(priv->btmrvl_dev.gpio_gap & 0x00ff); |
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|
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priv->btmrvl_dev.gpio_gap = (gpio << 8) + gap; |
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ret = of_property_read_u8_array(dt_node, "marvell,cal-data", |
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cal_data + BT_CAL_HDR_LEN, |
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BT_CAL_DATA_SIZE); |
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if (ret) |
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return ret; |
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BT_DBG("Use cal data from device tree"); |
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ret = btmrvl_download_cal_data(priv, cal_data, |
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BT_CAL_DATA_SIZE); |
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if (ret) |
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BT_ERR("Fail to download calibrate data"); |
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} |
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return ret; |
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} |
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|
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static int btmrvl_setup(struct hci_dev *hdev) |
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{ |
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struct btmrvl_private *priv = hci_get_drvdata(hdev); |
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int ret; |
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ret = btmrvl_send_module_cfg_cmd(priv, MODULE_BRINGUP_REQ); |
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if (ret) |
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return ret; |
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|
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priv->btmrvl_dev.gpio_gap = 0xfffe; |
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|
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btmrvl_check_device_tree(priv); |
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|
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btmrvl_enable_sco_routing_to_host(priv); |
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btmrvl_pscan_window_reporting(priv, 0x01); |
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priv->btmrvl_dev.psmode = 1; |
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btmrvl_enable_ps(priv); |
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|
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btmrvl_send_hscfg_cmd(priv); |
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|
|
return 0; |
|
} |
|
|
|
static int btmrvl_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr) |
|
{ |
|
struct sk_buff *skb; |
|
long ret; |
|
u8 buf[8]; |
|
|
|
buf[0] = MRVL_VENDOR_PKT; |
|
buf[1] = sizeof(bdaddr_t); |
|
memcpy(buf + 2, bdaddr, sizeof(bdaddr_t)); |
|
|
|
skb = __hci_cmd_sync(hdev, BT_CMD_SET_BDADDR, sizeof(buf), buf, |
|
HCI_INIT_TIMEOUT); |
|
if (IS_ERR(skb)) { |
|
ret = PTR_ERR(skb); |
|
BT_ERR("%s: changing btmrvl device address failed (%ld)", |
|
hdev->name, ret); |
|
return ret; |
|
} |
|
kfree_skb(skb); |
|
|
|
return 0; |
|
} |
|
|
|
static bool btmrvl_prevent_wake(struct hci_dev *hdev) |
|
{ |
|
struct btmrvl_private *priv = hci_get_drvdata(hdev); |
|
struct btmrvl_sdio_card *card = priv->btmrvl_dev.card; |
|
|
|
return !device_may_wakeup(&card->func->dev); |
|
} |
|
|
|
/* |
|
* This function handles the event generated by firmware, rx data |
|
* received from firmware, and tx data sent from kernel. |
|
*/ |
|
static int btmrvl_service_main_thread(void *data) |
|
{ |
|
struct btmrvl_thread *thread = data; |
|
struct btmrvl_private *priv = thread->priv; |
|
struct btmrvl_adapter *adapter = priv->adapter; |
|
wait_queue_entry_t wait; |
|
struct sk_buff *skb; |
|
ulong flags; |
|
|
|
init_waitqueue_entry(&wait, current); |
|
|
|
for (;;) { |
|
add_wait_queue(&thread->wait_q, &wait); |
|
|
|
set_current_state(TASK_INTERRUPTIBLE); |
|
if (kthread_should_stop() || priv->surprise_removed) { |
|
BT_DBG("main_thread: break from main thread"); |
|
break; |
|
} |
|
|
|
if (adapter->wakeup_tries || |
|
((!adapter->int_count) && |
|
(!priv->btmrvl_dev.tx_dnld_rdy || |
|
skb_queue_empty(&adapter->tx_queue)))) { |
|
BT_DBG("main_thread is sleeping..."); |
|
schedule(); |
|
} |
|
|
|
set_current_state(TASK_RUNNING); |
|
|
|
remove_wait_queue(&thread->wait_q, &wait); |
|
|
|
BT_DBG("main_thread woke up"); |
|
|
|
if (kthread_should_stop() || priv->surprise_removed) { |
|
BT_DBG("main_thread: break from main thread"); |
|
break; |
|
} |
|
|
|
spin_lock_irqsave(&priv->driver_lock, flags); |
|
if (adapter->int_count) { |
|
adapter->int_count = 0; |
|
spin_unlock_irqrestore(&priv->driver_lock, flags); |
|
priv->hw_process_int_status(priv); |
|
} else if (adapter->ps_state == PS_SLEEP && |
|
!skb_queue_empty(&adapter->tx_queue)) { |
|
spin_unlock_irqrestore(&priv->driver_lock, flags); |
|
adapter->wakeup_tries++; |
|
priv->hw_wakeup_firmware(priv); |
|
continue; |
|
} else { |
|
spin_unlock_irqrestore(&priv->driver_lock, flags); |
|
} |
|
|
|
if (adapter->ps_state == PS_SLEEP) |
|
continue; |
|
|
|
if (!priv->btmrvl_dev.tx_dnld_rdy || |
|
priv->adapter->is_suspended) |
|
continue; |
|
|
|
skb = skb_dequeue(&adapter->tx_queue); |
|
if (skb) { |
|
if (btmrvl_tx_pkt(priv, skb)) |
|
priv->btmrvl_dev.hcidev->stat.err_tx++; |
|
else |
|
priv->btmrvl_dev.hcidev->stat.byte_tx += skb->len; |
|
|
|
kfree_skb(skb); |
|
} |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
int btmrvl_register_hdev(struct btmrvl_private *priv) |
|
{ |
|
struct hci_dev *hdev = NULL; |
|
struct btmrvl_sdio_card *card = priv->btmrvl_dev.card; |
|
int ret; |
|
|
|
hdev = hci_alloc_dev(); |
|
if (!hdev) { |
|
BT_ERR("Can not allocate HCI device"); |
|
goto err_hdev; |
|
} |
|
|
|
priv->btmrvl_dev.hcidev = hdev; |
|
hci_set_drvdata(hdev, priv); |
|
|
|
hdev->bus = HCI_SDIO; |
|
hdev->open = btmrvl_open; |
|
hdev->close = btmrvl_close; |
|
hdev->flush = btmrvl_flush; |
|
hdev->send = btmrvl_send_frame; |
|
hdev->setup = btmrvl_setup; |
|
hdev->set_bdaddr = btmrvl_set_bdaddr; |
|
hdev->prevent_wake = btmrvl_prevent_wake; |
|
SET_HCIDEV_DEV(hdev, &card->func->dev); |
|
|
|
hdev->dev_type = priv->btmrvl_dev.dev_type; |
|
|
|
ret = hci_register_dev(hdev); |
|
if (ret < 0) { |
|
BT_ERR("Can not register HCI device"); |
|
goto err_hci_register_dev; |
|
} |
|
|
|
#ifdef CONFIG_DEBUG_FS |
|
btmrvl_debugfs_init(hdev); |
|
#endif |
|
|
|
return 0; |
|
|
|
err_hci_register_dev: |
|
hci_free_dev(hdev); |
|
|
|
err_hdev: |
|
/* Stop the thread servicing the interrupts */ |
|
kthread_stop(priv->main_thread.task); |
|
|
|
btmrvl_free_adapter(priv); |
|
kfree(priv); |
|
|
|
return -ENOMEM; |
|
} |
|
EXPORT_SYMBOL_GPL(btmrvl_register_hdev); |
|
|
|
struct btmrvl_private *btmrvl_add_card(void *card) |
|
{ |
|
struct btmrvl_private *priv; |
|
|
|
priv = kzalloc(sizeof(*priv), GFP_KERNEL); |
|
if (!priv) { |
|
BT_ERR("Can not allocate priv"); |
|
goto err_priv; |
|
} |
|
|
|
priv->adapter = kzalloc(sizeof(*priv->adapter), GFP_KERNEL); |
|
if (!priv->adapter) { |
|
BT_ERR("Allocate buffer for btmrvl_adapter failed!"); |
|
goto err_adapter; |
|
} |
|
|
|
btmrvl_init_adapter(priv); |
|
|
|
BT_DBG("Starting kthread..."); |
|
priv->main_thread.priv = priv; |
|
spin_lock_init(&priv->driver_lock); |
|
|
|
init_waitqueue_head(&priv->main_thread.wait_q); |
|
priv->main_thread.task = kthread_run(btmrvl_service_main_thread, |
|
&priv->main_thread, "btmrvl_main_service"); |
|
if (IS_ERR(priv->main_thread.task)) |
|
goto err_thread; |
|
|
|
priv->btmrvl_dev.card = card; |
|
priv->btmrvl_dev.tx_dnld_rdy = true; |
|
|
|
return priv; |
|
|
|
err_thread: |
|
btmrvl_free_adapter(priv); |
|
|
|
err_adapter: |
|
kfree(priv); |
|
|
|
err_priv: |
|
return NULL; |
|
} |
|
EXPORT_SYMBOL_GPL(btmrvl_add_card); |
|
|
|
int btmrvl_remove_card(struct btmrvl_private *priv) |
|
{ |
|
struct hci_dev *hdev; |
|
|
|
hdev = priv->btmrvl_dev.hcidev; |
|
|
|
wake_up_interruptible(&priv->adapter->cmd_wait_q); |
|
wake_up_interruptible(&priv->adapter->event_hs_wait_q); |
|
|
|
kthread_stop(priv->main_thread.task); |
|
|
|
#ifdef CONFIG_DEBUG_FS |
|
btmrvl_debugfs_remove(hdev); |
|
#endif |
|
|
|
hci_unregister_dev(hdev); |
|
|
|
hci_free_dev(hdev); |
|
|
|
priv->btmrvl_dev.hcidev = NULL; |
|
|
|
btmrvl_free_adapter(priv); |
|
|
|
kfree(priv); |
|
|
|
return 0; |
|
} |
|
EXPORT_SYMBOL_GPL(btmrvl_remove_card); |
|
|
|
MODULE_AUTHOR("Marvell International Ltd."); |
|
MODULE_DESCRIPTION("Marvell Bluetooth driver ver " VERSION); |
|
MODULE_VERSION(VERSION); |
|
MODULE_LICENSE("GPL v2");
|
|
|