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 #include <linux/err.h>
  27 #include <linux/gpio.h>
  28 #include <linux/gfp.h>
  29 #include <linux/interrupt.h>
  30 #include <linux/io.h>
  31 #include <linux/of_gpio.h>
  32 #include <linux/of_platform.h>
  33 #include <linux/platform_device.h>
  34 #include <linux/pm_runtime.h>
  35 #include <linux/of_irq.h>
  36
  37 #define BTM_HEADER_LEN                  4
  38 #define BTM_UPLD_SIZE                   2312
  39
  40 /* Time to wait until Host Sleep state change in millisecond */
  41 #define WAIT_UNTIL_HS_STATE_CHANGED     msecs_to_jiffies(5000)
  42 /* Time to wait for command response in millisecond */
  43 #define WAIT_UNTIL_CMD_RESP             msecs_to_jiffies(5000)
  44
  45 enum rdwr_status {
  46         RDWR_STATUS_SUCCESS = 0,
  47         RDWR_STATUS_FAILURE = 1,
  48         RDWR_STATUS_DONE = 2
  49 };
  50
  51 #define FW_DUMP_MAX_NAME_LEN    8
  52 #define FW_DUMP_HOST_READY      0xEE
  53 #define FW_DUMP_DONE            0xFF
  54 #define FW_DUMP_READ_DONE       0xFE
  55
  56 struct memory_type_mapping {
  57         u8 mem_name[FW_DUMP_MAX_NAME_LEN];
  58         u8 *mem_ptr;
  59         u32 mem_size;
  60         u8 done_flag;
  61 };
  62
  63 struct btmrvl_thread {
  64         struct task_struct *task;
  65         wait_queue_head_t wait_q;
  66         void *priv;
  67 };
  68
  69 struct btmrvl_device {
  70         void *card;
  71         struct hci_dev *hcidev;
  72
  73         u8 dev_type;
  74
  75         u8 tx_dnld_rdy;
  76
  77         u8 psmode;
  78         u8 pscmd;
  79         u8 hsmode;
  80         u8 hscmd;
  81
  82         /* Low byte is gap, high byte is GPIO */
  83         u16 gpio_gap;
  84
  85         u8 hscfgcmd;
  86         u8 sendcmdflag;
  87 };
  88
  89 struct btmrvl_adapter {
  90         void *hw_regs_buf;
  91         u8 *hw_regs;
  92         u32 int_count;
  93         struct sk_buff_head tx_queue;
  94         u8 psmode;
  95         u8 ps_state;
  96         u8 hs_state;
  97         u8 wakeup_tries;
  98         wait_queue_head_t cmd_wait_q;
  99         wait_queue_head_t event_hs_wait_q;
 100         u8 cmd_complete;
 101         bool is_suspended;
 102         bool is_suspending;
 103 };
 104
 105 struct btmrvl_private {
 106         struct btmrvl_device btmrvl_dev;
 107         struct btmrvl_adapter *adapter;
 108         struct btmrvl_thread main_thread;
 109         int (*hw_host_to_card)(struct btmrvl_private *priv,
 110                                 u8 *payload, u16 nb);
 111         int (*hw_wakeup_firmware)(struct btmrvl_private *priv);
 112         int (*hw_process_int_status)(struct btmrvl_private *priv);
 113         spinlock_t driver_lock;         /* spinlock used by driver */
 114 #ifdef CONFIG_DEBUG_FS
 115         void *debugfs_data;
 116 #endif
 117         bool surprise_removed;
 118 };
 119
 120 #define MRVL_VENDOR_PKT                 0xFE
 121
 122 /* Vendor specific Bluetooth commands */
 123 #define BT_CMD_PSCAN_WIN_REPORT_ENABLE  0xFC03
 124 #define BT_CMD_ROUTE_SCO_TO_HOST        0xFC1D
 125 #define BT_CMD_SET_BDADDR               0xFC22
 126 #define BT_CMD_AUTO_SLEEP_MODE          0xFC23
 127 #define BT_CMD_HOST_SLEEP_CONFIG        0xFC59
 128 #define BT_CMD_HOST_SLEEP_ENABLE        0xFC5A
 129 #define BT_CMD_MODULE_CFG_REQ           0xFC5B
 130 #define BT_CMD_LOAD_CONFIG_DATA         0xFC61
 131
 132 /* Sub-commands: Module Bringup/Shutdown Request/Response */
 133 #define MODULE_BRINGUP_REQ              0xF1
 134 #define MODULE_BROUGHT_UP               0x00
 135 #define MODULE_ALREADY_UP               0x0C
 136
 137 #define MODULE_SHUTDOWN_REQ             0xF2
 138
 139 /* Vendor specific Bluetooth events */
 140 #define BT_EVENT_AUTO_SLEEP_MODE        0x23
 141 #define BT_EVENT_HOST_SLEEP_CONFIG      0x59
 142 #define BT_EVENT_HOST_SLEEP_ENABLE      0x5A
 143 #define BT_EVENT_MODULE_CFG_REQ         0x5B
 144 #define BT_EVENT_POWER_STATE            0x20
 145
 146 /* Bluetooth Power States */
 147 #define BT_PS_ENABLE                    0x02
 148 #define BT_PS_DISABLE                   0x03
 149 #define BT_PS_SLEEP                     0x01
 150
 151 /* Host Sleep states */
 152 #define HS_ACTIVATED                    0x01
 153 #define HS_DEACTIVATED                  0x00
 154
 155 /* Power Save modes */
 156 #define PS_SLEEP                        0x01
 157 #define PS_AWAKE                        0x00
 158
 159 #define BT_CAL_HDR_LEN                  4
 160 #define BT_CAL_DATA_SIZE                28
 161
 162 struct btmrvl_event {
 163         u8 ec;          /* event counter */
 164         u8 length;
 165         u8 data[4];
 166 } __packed;
 167
 168 /* Prototype of global function */
 169
 170 int btmrvl_register_hdev(struct btmrvl_private *priv);
 171 struct btmrvl_private *btmrvl_add_card(void *card);
 172 int btmrvl_remove_card(struct btmrvl_private *priv);
 173
 174 void btmrvl_interrupt(struct btmrvl_private *priv);
 175
 176 bool btmrvl_check_evtpkt(struct btmrvl_private *priv, struct sk_buff *skb);
 177 int btmrvl_process_event(struct btmrvl_private *priv, struct sk_buff *skb);
 178
 179 int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, u8 subcmd);
 180 int btmrvl_pscan_window_reporting(struct btmrvl_private *priv, u8 subcmd);
 181 int btmrvl_send_hscfg_cmd(struct btmrvl_private *priv);
 182 int btmrvl_enable_ps(struct btmrvl_private *priv);
 183 int btmrvl_prepare_command(struct btmrvl_private *priv);
 184 int btmrvl_enable_hs(struct btmrvl_private *priv);
 185
 186 #ifdef CONFIG_DEBUG_FS
 187 void btmrvl_debugfs_init(struct hci_dev *hdev);
 188 void btmrvl_debugfs_remove(struct hci_dev *hdev);
 189 #endif