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 #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
  35 struct btmrvl_thread {
  36         struct task_struct *task;
  37         wait_queue_head_t wait_q;
  38         void *priv;
  39 };
  40
  41 struct 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
  61 struct 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         bool is_suspended;
  71 };
  72
  73 struct btmrvl_private {
  74         struct btmrvl_device btmrvl_dev;
  75         struct btmrvl_adapter *adapter;
  76         struct btmrvl_thread main_thread;
  77         int (*hw_host_to_card) (struct btmrvl_private *priv,
  78                                 u8 *payload, u16 nb);
  79         int (*hw_wakeup_firmware) (struct btmrvl_private *priv);
  80         int (*hw_process_int_status) (struct btmrvl_private *priv);
  81         spinlock_t driver_lock;         /* spinlock used by driver */
  82 #ifdef CONFIG_DEBUG_FS
  83         void *debugfs_data;
  84 #endif
  85 };
  86
  87 #define MRVL_VENDOR_PKT                 0xFE
  88
  89 /* Bluetooth commands  */
  90 #define BT_CMD_AUTO_SLEEP_MODE          0x23
  91 #define BT_CMD_HOST_SLEEP_CONFIG        0x59
  92 #define BT_CMD_HOST_SLEEP_ENABLE        0x5A
  93 #define BT_CMD_MODULE_CFG_REQ           0x5B
  94
  95 /* Sub-commands: Module Bringup/Shutdown Request/Response */
  96 #define MODULE_BRINGUP_REQ              0xF1
  97 #define MODULE_BROUGHT_UP               0x00
  98 #define MODULE_ALREADY_UP               0x0C
  99
 100 #define MODULE_SHUTDOWN_REQ             0xF2
 101
 102 #define BT_EVENT_POWER_STATE            0x20
 103
 104 /* Bluetooth Power States */
 105 #define BT_PS_ENABLE                    0x02
 106 #define BT_PS_DISABLE                   0x03
 107 #define BT_PS_SLEEP                     0x01
 108
 109 #define OGF                             0x3F
 110
 111 /* Host Sleep states */
 112 #define HS_ACTIVATED                    0x01
 113 #define HS_DEACTIVATED                  0x00
 114
 115 /* Power Save modes */
 116 #define PS_SLEEP                        0x01
 117 #define PS_AWAKE                        0x00
 118
 119 struct btmrvl_cmd {
 120         __le16 ocf_ogf;
 121         u8 length;
 122         u8 data[4];
 123 } __packed;
 124
 125 struct btmrvl_event {
 126         u8 ec;          /* event counter */
 127         u8 length;
 128         u8 data[4];
 129 } __packed;
 130
 131 /* Prototype of global function */
 132
 133 int btmrvl_register_hdev(struct btmrvl_private *priv);
 134 struct btmrvl_private *btmrvl_add_card(void *card);
 135 int btmrvl_remove_card(struct btmrvl_private *priv);
 136
 137 void btmrvl_interrupt(struct btmrvl_private *priv);
 138
 139 bool btmrvl_check_evtpkt(struct btmrvl_private *priv, struct sk_buff *skb);
 140 int btmrvl_process_event(struct btmrvl_private *priv, struct sk_buff *skb);
 141
 142 int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, int subcmd);
 143 int btmrvl_send_hscfg_cmd(struct btmrvl_private *priv);
 144 int btmrvl_enable_ps(struct btmrvl_private *priv);
 145 int btmrvl_prepare_command(struct btmrvl_private *priv);
 146 int btmrvl_enable_hs(struct btmrvl_private *priv);
 147
 148 #ifdef CONFIG_DEBUG_FS
 149 void btmrvl_debugfs_init(struct hci_dev *hdev);
 150 void btmrvl_debugfs_remove(struct hci_dev *hdev);
 151 #endif