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 <net/bluetooth/bluetooth.h>
  25
  26#define BTM_HEADER_LEN                  4
  27#define BTM_UPLD_SIZE                   2312
  28
  29/* Time to wait until Host Sleep state change in millisecond */
  30#define WAIT_UNTIL_HS_STATE_CHANGED     5000
  31/* Time to wait for command response in millisecond */
  32#define WAIT_UNTIL_CMD_RESP             5000
  33
  34struct btmrvl_thread {
  35        struct task_struct *task;
  36        wait_queue_head_t wait_q;
  37        void *priv;
  38};
  39
  40struct btmrvl_device {
  41        void *card;
  42        struct hci_dev *hcidev;
  43
  44        u8 tx_dnld_rdy;
  45
  46        u8 psmode;
  47        u8 pscmd;
  48        u8 hsmode;
  49        u8 hscmd;
  50
  51        /* Low byte is gap, high byte is GPIO */
  52        u16 gpio_gap;
  53
  54        u8 hscfgcmd;
  55        u8 sendcmdflag;
  56};
  57
  58struct btmrvl_adapter {
  59        u32 int_count;
  60        struct sk_buff_head tx_queue;
  61        u8 psmode;
  62        u8 ps_state;
  63        u8 hs_state;
  64        u8 wakeup_tries;
  65        wait_queue_head_t cmd_wait_q;
  66        u8 cmd_complete;
  67};
  68
  69struct btmrvl_private {
  70        struct btmrvl_device btmrvl_dev;
  71        struct btmrvl_adapter *adapter;
  72        struct btmrvl_thread main_thread;
  73        int (*hw_host_to_card) (struct btmrvl_private *priv,
  74                                u8 *payload, u16 nb);
  75        int (*hw_wakeup_firmware) (struct btmrvl_private *priv);
  76        spinlock_t driver_lock;         /* spinlock used by driver */
  77#ifdef CONFIG_DEBUG_FS
  78        void *debugfs_data;
  79#endif
  80};
  81
  82#define MRVL_VENDOR_PKT                 0xFE
  83
  84/* Bluetooth commands  */
  85#define BT_CMD_AUTO_SLEEP_MODE          0x23
  86#define BT_CMD_HOST_SLEEP_CONFIG        0x59
  87#define BT_CMD_HOST_SLEEP_ENABLE        0x5A
  88#define BT_CMD_MODULE_CFG_REQ           0x5B
  89
  90/* Sub-commands: Module Bringup/Shutdown Request */
  91#define MODULE_BRINGUP_REQ              0xF1
  92#define MODULE_SHUTDOWN_REQ             0xF2
  93
  94#define BT_EVENT_POWER_STATE            0x20
  95
  96/* Bluetooth Power States */
  97#define BT_PS_ENABLE                    0x02
  98#define BT_PS_DISABLE                   0x03
  99#define BT_PS_SLEEP                     0x01
 100
 101#define OGF                             0x3F
 102
 103/* Host Sleep states */
 104#define HS_ACTIVATED                    0x01
 105#define HS_DEACTIVATED                  0x00
 106
 107/* Power Save modes */
 108#define PS_SLEEP                        0x01
 109#define PS_AWAKE                        0x00
 110
 111struct btmrvl_cmd {
 112        __le16 ocf_ogf;
 113        u8 length;
 114        u8 data[4];
 115} __attribute__ ((packed));
 116
 117struct btmrvl_event {
 118        u8 ec;          /* event counter */
 119        u8 length;
 120        u8 data[4];
 121} __attribute__ ((packed));
 122
 123/* Prototype of global function */
 124
 125struct btmrvl_private *btmrvl_add_card(void *card);
 126int btmrvl_remove_card(struct btmrvl_private *priv);
 127
 128void btmrvl_interrupt(struct btmrvl_private *priv);
 129
 130void btmrvl_check_evtpkt(struct btmrvl_private *priv, struct sk_buff *skb);
 131int btmrvl_process_event(struct btmrvl_private *priv, struct sk_buff *skb);
 132
 133int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, int subcmd);
 134int btmrvl_prepare_command(struct btmrvl_private *priv);
 135
 136#ifdef CONFIG_DEBUG_FS
 137void btmrvl_debugfs_init(struct hci_dev *hdev);
 138void btmrvl_debugfs_remove(struct hci_dev *hdev);
 139#endif
 140