drivers/bluetooth/btmrvl_drv.h

   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 #ifndef _BTMRVL_DRV_H_
  23 #define _BTMRVL_DRV_H_
  24
  25 #include <linux/kthread.h>
  26 #include <linux/bitops.h>
  27 #include <net/bluetooth/bluetooth.h>
  28
  29 #define BTM_HEADER_LEN                  4
  30 #define BTM_DEV_NAME_LEN                32
  31 #define BTM_UPLD_SIZE                   2312
  32
  33 /* Time to wait until Host Sleep state change in millisecond */
  34 #define WAIT_UNTIL_HS_STATE_CHANGED     5000
  35 /* Time to wait for command response in millisecond */
  36 #define WAIT_UNTIL_CMD_RESP             5000
  37
  38 struct btmrvl_thread {
  39         struct task_struct *task;
  40         wait_queue_head_t wait_q;
  41         void *priv;
  42 };
  43
  44 struct btmrvl_device {
  45         char name[BTM_DEV_NAME_LEN];
  46         void *card;
  47         struct hci_dev *hcidev;
  48
  49         u8 tx_dnld_rdy;
  50
  51         u8 psmode;
  52         u8 pscmd;
  53         u8 hsmode;
  54         u8 hscmd;
  55
  56         /* Low byte is gap, high byte is GPIO */
  57         u16 gpio_gap;
  58
  59         u8 hscfgcmd;
  60         u8 sendcmdflag;
  61 };
  62
  63 struct btmrvl_adapter {
  64         u32 int_count;
  65         struct sk_buff_head tx_queue;
  66         u8 psmode;
  67         u8 ps_state;
  68         u8 hs_state;
  69         u8 wakeup_tries;
  70         wait_queue_head_t cmd_wait_q;
  71         u8 cmd_complete;
  72 };
  73
  74 struct btmrvl_private {
  75         struct btmrvl_device btmrvl_dev;
  76         struct btmrvl_adapter *adapter;
  77         struct btmrvl_thread main_thread;
  78         int (*hw_host_to_card) (struct btmrvl_private *priv,
  79                                 u8 *payload, u16 nb);
  80         int (*hw_wakeup_firmware) (struct btmrvl_private *priv);
  81         spinlock_t driver_lock;         /* spinlock used by driver */
  82 };
  83
  84 #define MRVL_VENDOR_PKT                 0xFE
  85
  86 /* Bluetooth commands  */
  87 #define BT_CMD_AUTO_SLEEP_MODE          0x23
  88 #define BT_CMD_HOST_SLEEP_CONFIG        0x59
  89 #define BT_CMD_HOST_SLEEP_ENABLE        0x5A
  90 #define BT_CMD_MODULE_CFG_REQ           0x5B
  91
  92 /* Sub-commands: Module Bringup/Shutdown Request */
  93 #define MODULE_BRINGUP_REQ              0xF1
  94 #define MODULE_SHUTDOWN_REQ             0xF2
  95
  96 #define BT_EVENT_POWER_STATE            0x20
  97
  98 /* Bluetooth Power States */
  99 #define BT_PS_ENABLE                    0x02
 100 #define BT_PS_DISABLE                   0x03
 101 #define BT_PS_SLEEP                     0x01
 102
 103 #define OGF                             0x3F
 104
 105 /* Host Sleep states */
 106 #define HS_ACTIVATED                    0x01
 107 #define HS_DEACTIVATED                  0x00
 108
 109 /* Power Save modes */
 110 #define PS_SLEEP                        0x01
 111 #define PS_AWAKE                        0x00
 112
 113 struct btmrvl_cmd {
 114         __le16 ocf_ogf;
 115         u8 length;
 116         u8 data[4];
 117 } __attribute__ ((packed));
 118
 119 struct btmrvl_event {
 120         u8 ec;          /* event counter */
 121         u8 length;
 122         u8 data[4];
 123 } __attribute__ ((packed));
 124
 125 /* Prototype of global function */
 126
 127 struct btmrvl_private *btmrvl_add_card(void *card);
 128 int btmrvl_remove_card(struct btmrvl_private *priv);
 129
 130 void btmrvl_interrupt(struct btmrvl_private *priv);
 131
 132 void btmrvl_check_evtpkt(struct btmrvl_private *priv, struct sk_buff *skb);
 133 int btmrvl_process_event(struct btmrvl_private *priv, struct sk_buff *skb);
 134
 135 int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, int subcmd);
 136 int btmrvl_prepare_command(struct btmrvl_private *priv);
 137
 138 #endif /* _BTMRVL_DRV_H_ */