LXR linux/drivers/bluetooth/btmrvl

   1/*
   2 * Marvell Bluetooth driver: global definitions & declarations
   3 *
   4 * Copyright (C) 2009, Marvell International Ltd.
   5 *
   6 * This software file (the "File") is distributed by Marvell International
   7 * Ltd. under the terms of the GNU General Public License Version 2, June 1991
   8 * (the "License").  You may use, redistribute and/or modify this File in
   9 * accordance with the terms and conditions of the License, a copy of which
  10 * is available by writing to the Free Software Foundation, Inc.,
  11 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
  12 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
  13 *
  14 *
  15 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
  16 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
  17 * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
  18 * this warranty disclaimer.
  19 *
  20 */
  21
  22#include <linux/kthread.h>
  23#include <linux/bitops.h>
  24#include <linux/slab.h>
  25#include <net/bluetooth/bluetooth.h>
  26
  27#define BTM_HEADER_LEN                  4
  28#define BTM_UPLD_SIZE                   2312
  29
  30/* Time to wait until Host Sleep state change in millisecond */
  31#define WAIT_UNTIL_HS_STATE_CHANGED     5000
  32/* Time to wait for command response in millisecond */
  33#define WAIT_UNTIL_CMD_RESP             5000
  34
  35struct btmrvl_thread {
  36        struct task_struct *task;
  37        wait_queue_head_t wait_q;
  38        void *priv;
  39};
  40
  41struct btmrvl_device {
  42        void *card;
  43        struct hci_dev *hcidev;
  44
  45        u8 dev_type;
  46
  47        u8 tx_dnld_rdy;
  48
  49        u8 psmode;
  50        u8 pscmd;
  51        u8 hsmode;
  52        u8 hscmd;
  53
  54        /* Low byte is gap, high byte is GPIO */
  55        u16 gpio_gap;
  56
  57        u8 hscfgcmd;
  58        u8 sendcmdflag;
  59};
  60
  61struct btmrvl_adapter {
  62        u32 int_count;
  63        struct sk_buff_head tx_queue;
  64        u8 psmode;
  65        u8 ps_state;
  66        u8 hs_state;
  67        u8 wakeup_tries;
  68        wait_queue_head_t cmd_wait_q;
  69        u8 cmd_complete;
  70};
  71
  72struct btmrvl_private {
  73        struct btmrvl_device btmrvl_dev;
  74        struct btmrvl_adapter *adapter;
  75        struct btmrvl_thread main_thread;
  76        int (*hw_host_to_card) (struct btmrvl_private *priv,
  77                                u8 *payload, u16 nb);
  78        int (*hw_wakeup_firmware) (struct btmrvl_private *priv);
  79        int (*hw_process_int_status) (struct btmrvl_private *priv);
  80        spinlock_t driver_lock;         /* spinlock used by driver */
  81#ifdef CONFIG_DEBUG_FS
  82        void *debugfs_data;
  83#endif
  84};
  85
  86#define MRVL_VENDOR_PKT                 0xFE
  87
  88/* Bluetooth commands  */
  89#define BT_CMD_AUTO_SLEEP_MODE          0x23
  90#define BT_CMD_HOST_SLEEP_CONFIG        0x59
  91#define BT_CMD_HOST_SLEEP_ENABLE        0x5A
  92#define BT_CMD_MODULE_CFG_REQ           0x5B
  93
  94/* Sub-commands: Module Bringup/Shutdown Request/Response */
  95#define MODULE_BRINGUP_REQ              0xF1
  96#define MODULE_BROUGHT_UP               0x00
  97#define MODULE_ALREADY_UP               0x0C
  98
  99#define MODULE_SHUTDOWN_REQ             0xF2
 100
 101#define BT_EVENT_POWER_STATE            0x20
 102
 103/* Bluetooth Power States */
 104#define BT_PS_ENABLE                    0x02
 105#define BT_PS_DISABLE                   0x03
 106#define BT_PS_SLEEP                     0x01
 107
 108#define OGF                             0x3F
 109
 110/* Host Sleep states */
 111#define HS_ACTIVATED                    0x01
 112#define HS_DEACTIVATED                  0x00
 113
 114/* Power Save modes */
 115#define PS_SLEEP                        0x01
 116#define PS_AWAKE                        0x00
 117
 118struct btmrvl_cmd {
 119        __le16 ocf_ogf;
 120        u8 length;
 121        u8 data[4];
 122} __packed;
 123
 124struct btmrvl_event {
 125        u8 ec;          /* event counter */
 126        u8 length;
 127        u8 data[4];
 128} __packed;
 129
 130/* Prototype of global function */
 131
 132int btmrvl_register_hdev(struct btmrvl_private *priv);
 133struct btmrvl_private *btmrvl_add_card(void *card);
 134int btmrvl_remove_card(struct btmrvl_private *priv);
 135
 136void btmrvl_interrupt(struct btmrvl_private *priv);
 137
 138void btmrvl_check_evtpkt(struct btmrvl_private *priv, struct sk_buff *skb);
 139int btmrvl_process_event(struct btmrvl_private *priv, struct sk_buff *skb);
 140
 141int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, int subcmd);
 142int btmrvl_enable_ps(struct btmrvl_private *priv);
 143int btmrvl_prepare_command(struct btmrvl_private *priv);
 144
 145#ifdef CONFIG_DEBUG_FS
 146void btmrvl_debugfs_init(struct hci_dev *hdev);
 147void btmrvl_debugfs_remove(struct hci_dev *hdev);
 148#endif
 149