diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/bluetooth/btmrvl_main.c')
| -rw-r--r-- | ANDROID_3.4.5/drivers/bluetooth/btmrvl_main.c | 655 |
1 files changed, 0 insertions, 655 deletions
diff --git a/ANDROID_3.4.5/drivers/bluetooth/btmrvl_main.c b/ANDROID_3.4.5/drivers/bluetooth/btmrvl_main.c deleted file mode 100644 index d1209adc..00000000 --- a/ANDROID_3.4.5/drivers/bluetooth/btmrvl_main.c +++ /dev/null @@ -1,655 +0,0 @@ -/** - * Marvell Bluetooth driver - * - * Copyright (C) 2009, Marvell International Ltd. - * - * This software file (the "File") is distributed by Marvell International - * Ltd. under the terms of the GNU General Public License Version 2, June 1991 - * (the "License"). You may use, redistribute and/or modify this File in - * accordance with the terms and conditions of the License, a copy of which - * is available by writing to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the - * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. - * - * - * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE - * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE - * ARE EXPRESSLY DISCLAIMED. The License provides additional details about - * this warranty disclaimer. - **/ - -#include <linux/module.h> - -#include <net/bluetooth/bluetooth.h> -#include <net/bluetooth/hci_core.h> - -#include "btmrvl_drv.h" - -#define VERSION "1.0" - -/* - * This function is called by interface specific interrupt handler. - * It updates Power Save & Host Sleep states, and wakes up the main - * thread. - */ -void btmrvl_interrupt(struct btmrvl_private *priv) -{ - priv->adapter->ps_state = PS_AWAKE; - - priv->adapter->wakeup_tries = 0; - - priv->adapter->int_count++; - - wake_up_interruptible(&priv->main_thread.wait_q); -} -EXPORT_SYMBOL_GPL(btmrvl_interrupt); - -void btmrvl_check_evtpkt(struct btmrvl_private *priv, struct sk_buff *skb) -{ - struct hci_event_hdr *hdr = (void *) skb->data; - struct hci_ev_cmd_complete *ec; - u16 opcode, ocf; - - if (hdr->evt == HCI_EV_CMD_COMPLETE) { - ec = (void *) (skb->data + HCI_EVENT_HDR_SIZE); - opcode = __le16_to_cpu(ec->opcode); - ocf = hci_opcode_ocf(opcode); - if (ocf == BT_CMD_MODULE_CFG_REQ && - priv->btmrvl_dev.sendcmdflag) { - priv->btmrvl_dev.sendcmdflag = false; - priv->adapter->cmd_complete = true; - wake_up_interruptible(&priv->adapter->cmd_wait_q); - } - } -} -EXPORT_SYMBOL_GPL(btmrvl_check_evtpkt); - -int btmrvl_process_event(struct btmrvl_private *priv, struct sk_buff *skb) -{ - struct btmrvl_adapter *adapter = priv->adapter; - struct btmrvl_event *event; - int ret = 0; - - event = (struct btmrvl_event *) skb->data; - if (event->ec != 0xff) { - BT_DBG("Not Marvell Event=%x", event->ec); - ret = -EINVAL; - goto exit; - } - - switch (event->data[0]) { - case BT_CMD_AUTO_SLEEP_MODE: - if (!event->data[2]) { - if (event->data[1] == BT_PS_ENABLE) - adapter->psmode = 1; - else - adapter->psmode = 0; - BT_DBG("PS Mode:%s", - (adapter->psmode) ? "Enable" : "Disable"); - } else { - BT_DBG("PS Mode command failed"); - } - break; - - case BT_CMD_HOST_SLEEP_CONFIG: - if (!event->data[3]) - BT_DBG("gpio=%x, gap=%x", event->data[1], - event->data[2]); - else - BT_DBG("HSCFG command failed"); - break; - - case BT_CMD_HOST_SLEEP_ENABLE: - if (!event->data[1]) { - adapter->hs_state = HS_ACTIVATED; - if (adapter->psmode) - adapter->ps_state = PS_SLEEP; - wake_up_interruptible(&adapter->cmd_wait_q); - BT_DBG("HS ACTIVATED!"); - } else { - BT_DBG("HS Enable failed"); - } - break; - - case BT_CMD_MODULE_CFG_REQ: - if (priv->btmrvl_dev.sendcmdflag && - event->data[1] == MODULE_BRINGUP_REQ) { - BT_DBG("EVENT:%s", - ((event->data[2] == MODULE_BROUGHT_UP) || - (event->data[2] == MODULE_ALREADY_UP)) ? - "Bring-up succeed" : "Bring-up failed"); - - if (event->length > 3 && event->data[3]) - priv->btmrvl_dev.dev_type = HCI_AMP; - else - priv->btmrvl_dev.dev_type = HCI_BREDR; - - BT_DBG("dev_type: %d", priv->btmrvl_dev.dev_type); - } else if (priv->btmrvl_dev.sendcmdflag && - event->data[1] == MODULE_SHUTDOWN_REQ) { - BT_DBG("EVENT:%s", (event->data[2]) ? - "Shutdown failed" : "Shutdown succeed"); - } else { - BT_DBG("BT_CMD_MODULE_CFG_REQ resp for APP"); - ret = -EINVAL; - } - break; - - case BT_EVENT_POWER_STATE: - if (event->data[1] == BT_PS_SLEEP) - adapter->ps_state = PS_SLEEP; - BT_DBG("EVENT:%s", - (adapter->ps_state) ? "PS_SLEEP" : "PS_AWAKE"); - break; - - default: - BT_DBG("Unknown Event=%d", event->data[0]); - ret = -EINVAL; - break; - } - -exit: - if (!ret) - kfree_skb(skb); - - return ret; -} -EXPORT_SYMBOL_GPL(btmrvl_process_event); - -int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, int subcmd) -{ - struct sk_buff *skb; - struct btmrvl_cmd *cmd; - int ret = 0; - - skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC); - if (skb == NULL) { - BT_ERR("No free skb"); - return -ENOMEM; - } - - cmd = (struct btmrvl_cmd *) skb_put(skb, sizeof(*cmd)); - cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF, BT_CMD_MODULE_CFG_REQ)); - cmd->length = 1; - cmd->data[0] = subcmd; - - bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT; - - skb->dev = (void *) priv->btmrvl_dev.hcidev; - skb_queue_head(&priv->adapter->tx_queue, skb); - - priv->btmrvl_dev.sendcmdflag = true; - - priv->adapter->cmd_complete = false; - - BT_DBG("Queue module cfg Command"); - - wake_up_interruptible(&priv->main_thread.wait_q); - - if (!wait_event_interruptible_timeout(priv->adapter->cmd_wait_q, - priv->adapter->cmd_complete, - msecs_to_jiffies(WAIT_UNTIL_CMD_RESP))) { - ret = -ETIMEDOUT; - BT_ERR("module_cfg_cmd(%x): timeout: %d", - subcmd, priv->btmrvl_dev.sendcmdflag); - } - - BT_DBG("module cfg Command done"); - - return ret; -} -EXPORT_SYMBOL_GPL(btmrvl_send_module_cfg_cmd); - -int btmrvl_enable_ps(struct btmrvl_private *priv) -{ - struct sk_buff *skb; - struct btmrvl_cmd *cmd; - - skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC); - if (skb == NULL) { - BT_ERR("No free skb"); - return -ENOMEM; - } - - cmd = (struct btmrvl_cmd *) skb_put(skb, sizeof(*cmd)); - cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF, - BT_CMD_AUTO_SLEEP_MODE)); - cmd->length = 1; - - if (priv->btmrvl_dev.psmode) - cmd->data[0] = BT_PS_ENABLE; - else - cmd->data[0] = BT_PS_DISABLE; - - bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT; - - skb->dev = (void *) priv->btmrvl_dev.hcidev; - skb_queue_head(&priv->adapter->tx_queue, skb); - - BT_DBG("Queue PSMODE Command:%d", cmd->data[0]); - - return 0; -} -EXPORT_SYMBOL_GPL(btmrvl_enable_ps); - -static int btmrvl_enable_hs(struct btmrvl_private *priv) -{ - struct sk_buff *skb; - struct btmrvl_cmd *cmd; - int ret = 0; - - skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC); - if (skb == NULL) { - BT_ERR("No free skb"); - return -ENOMEM; - } - - cmd = (struct btmrvl_cmd *) skb_put(skb, sizeof(*cmd)); - cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF, BT_CMD_HOST_SLEEP_ENABLE)); - cmd->length = 0; - - bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT; - - skb->dev = (void *) priv->btmrvl_dev.hcidev; - skb_queue_head(&priv->adapter->tx_queue, skb); - - BT_DBG("Queue hs enable Command"); - - wake_up_interruptible(&priv->main_thread.wait_q); - - if (!wait_event_interruptible_timeout(priv->adapter->cmd_wait_q, - priv->adapter->hs_state, - msecs_to_jiffies(WAIT_UNTIL_HS_STATE_CHANGED))) { - ret = -ETIMEDOUT; - BT_ERR("timeout: %d, %d,%d", priv->adapter->hs_state, - priv->adapter->ps_state, - priv->adapter->wakeup_tries); - } - - return ret; -} - -int btmrvl_prepare_command(struct btmrvl_private *priv) -{ - struct sk_buff *skb = NULL; - struct btmrvl_cmd *cmd; - int ret = 0; - - if (priv->btmrvl_dev.hscfgcmd) { - priv->btmrvl_dev.hscfgcmd = 0; - - skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC); - if (skb == NULL) { - BT_ERR("No free skb"); - return -ENOMEM; - } - - cmd = (struct btmrvl_cmd *) skb_put(skb, sizeof(*cmd)); - cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF, BT_CMD_HOST_SLEEP_CONFIG)); - cmd->length = 2; - cmd->data[0] = (priv->btmrvl_dev.gpio_gap & 0xff00) >> 8; - cmd->data[1] = (u8) (priv->btmrvl_dev.gpio_gap & 0x00ff); - - bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT; - - skb->dev = (void *) priv->btmrvl_dev.hcidev; - skb_queue_head(&priv->adapter->tx_queue, skb); - - BT_DBG("Queue HSCFG Command, gpio=0x%x, gap=0x%x", - cmd->data[0], cmd->data[1]); - } - - if (priv->btmrvl_dev.pscmd) { - priv->btmrvl_dev.pscmd = 0; - btmrvl_enable_ps(priv); - } - - if (priv->btmrvl_dev.hscmd) { - priv->btmrvl_dev.hscmd = 0; - - if (priv->btmrvl_dev.hsmode) { - ret = btmrvl_enable_hs(priv); - } else { - ret = priv->hw_wakeup_firmware(priv); - priv->adapter->hs_state = HS_DEACTIVATED; - } - } - - return ret; -} - -static int btmrvl_tx_pkt(struct btmrvl_private *priv, struct sk_buff *skb) -{ - int ret = 0; - - if (!skb || !skb->data) - return -EINVAL; - - if (!skb->len || ((skb->len + BTM_HEADER_LEN) > BTM_UPLD_SIZE)) { - BT_ERR("Tx Error: Bad skb length %d : %d", - skb->len, BTM_UPLD_SIZE); - return -EINVAL; - } - - if (skb_headroom(skb) < BTM_HEADER_LEN) { - struct sk_buff *tmp = skb; - - skb = skb_realloc_headroom(skb, BTM_HEADER_LEN); - if (!skb) { - BT_ERR("Tx Error: realloc_headroom failed %d", - BTM_HEADER_LEN); - skb = tmp; - return -EINVAL; - } - - kfree_skb(tmp); - } - - skb_push(skb, BTM_HEADER_LEN); - - /* header type: byte[3] - * HCI_COMMAND = 1, ACL_DATA = 2, SCO_DATA = 3, 0xFE = Vendor - * header length: byte[2][1][0] - */ - - skb->data[0] = (skb->len & 0x0000ff); - skb->data[1] = (skb->len & 0x00ff00) >> 8; - skb->data[2] = (skb->len & 0xff0000) >> 16; - skb->data[3] = bt_cb(skb)->pkt_type; - - if (priv->hw_host_to_card) - ret = priv->hw_host_to_card(priv, skb->data, skb->len); - - return ret; -} - -static void btmrvl_init_adapter(struct btmrvl_private *priv) -{ - skb_queue_head_init(&priv->adapter->tx_queue); - - priv->adapter->ps_state = PS_AWAKE; - - init_waitqueue_head(&priv->adapter->cmd_wait_q); -} - -static void btmrvl_free_adapter(struct btmrvl_private *priv) -{ - skb_queue_purge(&priv->adapter->tx_queue); - - kfree(priv->adapter); - - priv->adapter = NULL; -} - -static int btmrvl_ioctl(struct hci_dev *hdev, - unsigned int cmd, unsigned long arg) -{ - return -ENOIOCTLCMD; -} - -static int btmrvl_send_frame(struct sk_buff *skb) -{ - struct hci_dev *hdev = (struct hci_dev *) skb->dev; - struct btmrvl_private *priv = NULL; - - BT_DBG("type=%d, len=%d", skb->pkt_type, skb->len); - - if (!hdev) { - BT_ERR("Frame for unknown HCI device"); - return -ENODEV; - } - - priv = hci_get_drvdata(hdev); - - if (!test_bit(HCI_RUNNING, &hdev->flags)) { - BT_ERR("Failed testing HCI_RUNING, flags=%lx", hdev->flags); - print_hex_dump_bytes("data: ", DUMP_PREFIX_OFFSET, - skb->data, skb->len); - return -EBUSY; - } - - switch (bt_cb(skb)->pkt_type) { - case HCI_COMMAND_PKT: - hdev->stat.cmd_tx++; - break; - - case HCI_ACLDATA_PKT: - hdev->stat.acl_tx++; - break; - - case HCI_SCODATA_PKT: - hdev->stat.sco_tx++; - break; - } - - skb_queue_tail(&priv->adapter->tx_queue, skb); - - wake_up_interruptible(&priv->main_thread.wait_q); - - return 0; -} - -static int btmrvl_flush(struct hci_dev *hdev) -{ - struct btmrvl_private *priv = hci_get_drvdata(hdev); - - skb_queue_purge(&priv->adapter->tx_queue); - - return 0; -} - -static int btmrvl_close(struct hci_dev *hdev) -{ - struct btmrvl_private *priv = hci_get_drvdata(hdev); - - if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) - return 0; - - skb_queue_purge(&priv->adapter->tx_queue); - - return 0; -} - -static int btmrvl_open(struct hci_dev *hdev) -{ - set_bit(HCI_RUNNING, &hdev->flags); - - return 0; -} - -/* - * 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_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 (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()) { - 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) - 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; - 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->ioctl = btmrvl_ioctl; - - btmrvl_send_module_cfg_cmd(priv, MODULE_BRINGUP_REQ); - - 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"); - - priv->btmrvl_dev.card = card; - priv->btmrvl_dev.tx_dnld_rdy = true; - - return 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); - - 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"); |