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/ctype.h> 27 #include <linux/firmware.h> 28 29 #define BTM_HEADER_LEN 4 30 #define BTM_UPLD_SIZE 2312 31 32 /* Time to wait until Host Sleep state change in millisecond */ 33 #define WAIT_UNTIL_HS_STATE_CHANGED 5000 34 /* Time to wait for command response in millisecond */ 35 #define WAIT_UNTIL_CMD_RESP 5000 36 37 struct btmrvl_thread { 38 struct task_struct *task; 39 wait_queue_head_t wait_q; 40 void *priv; 41 }; 42 43 struct btmrvl_device { 44 void *card; 45 struct hci_dev *hcidev; 46 struct device *dev; 47 const char *cal_data; 48 49 u8 dev_type; 50 51 u8 tx_dnld_rdy; 52 53 u8 psmode; 54 u8 pscmd; 55 u8 hsmode; 56 u8 hscmd; 57 58 /* Low byte is gap, high byte is GPIO */ 59 u16 gpio_gap; 60 61 u8 hscfgcmd; 62 u8 sendcmdflag; 63 }; 64 65 struct btmrvl_adapter { 66 u32 int_count; 67 struct sk_buff_head tx_queue; 68 u8 psmode; 69 u8 ps_state; 70 u8 hs_state; 71 u8 wakeup_tries; 72 wait_queue_head_t cmd_wait_q; 73 u8 cmd_complete; 74 bool is_suspended; 75 }; 76 77 struct btmrvl_private { 78 struct btmrvl_device btmrvl_dev; 79 struct btmrvl_adapter *adapter; 80 struct btmrvl_thread main_thread; 81 int (*hw_host_to_card) (struct btmrvl_private *priv, 82 u8 *payload, u16 nb); 83 int (*hw_wakeup_firmware) (struct btmrvl_private *priv); 84 int (*hw_process_int_status) (struct btmrvl_private *priv); 85 spinlock_t driver_lock; /* spinlock used by driver */ 86 #ifdef CONFIG_DEBUG_FS 87 void *debugfs_data; 88 #endif 89 }; 90 91 #define MRVL_VENDOR_PKT 0xFE 92 93 /* Bluetooth commands */ 94 #define BT_CMD_AUTO_SLEEP_MODE 0x23 95 #define BT_CMD_HOST_SLEEP_CONFIG 0x59 96 #define BT_CMD_HOST_SLEEP_ENABLE 0x5A 97 #define BT_CMD_MODULE_CFG_REQ 0x5B 98 #define BT_CMD_LOAD_CONFIG_DATA 0x61 99 100 /* Sub-commands: Module Bringup/Shutdown Request/Response */ 101 #define MODULE_BRINGUP_REQ 0xF1 102 #define MODULE_BROUGHT_UP 0x00 103 #define MODULE_ALREADY_UP 0x0C 104 105 #define MODULE_SHUTDOWN_REQ 0xF2 106 107 #define BT_EVENT_POWER_STATE 0x20 108 109 /* Bluetooth Power States */ 110 #define BT_PS_ENABLE 0x02 111 #define BT_PS_DISABLE 0x03 112 #define BT_PS_SLEEP 0x01 113 114 #define OGF 0x3F 115 116 /* Host Sleep states */ 117 #define HS_ACTIVATED 0x01 118 #define HS_DEACTIVATED 0x00 119 120 /* Power Save modes */ 121 #define PS_SLEEP 0x01 122 #define PS_AWAKE 0x00 123 124 #define BT_CMD_DATA_SIZE 32 125 #define BT_CAL_DATA_SIZE 28 126 127 struct btmrvl_event { 128 u8 ec; /* event counter */ 129 u8 length; 130 u8 data[4]; 131 } __packed; 132 133 /* Prototype of global function */ 134 135 int btmrvl_register_hdev(struct btmrvl_private *priv); 136 struct btmrvl_private *btmrvl_add_card(void *card); 137 int btmrvl_remove_card(struct btmrvl_private *priv); 138 139 void btmrvl_interrupt(struct btmrvl_private *priv); 140 141 bool btmrvl_check_evtpkt(struct btmrvl_private *priv, struct sk_buff *skb); 142 int btmrvl_process_event(struct btmrvl_private *priv, struct sk_buff *skb); 143 144 int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, int subcmd); 145 int btmrvl_send_hscfg_cmd(struct btmrvl_private *priv); 146 int btmrvl_enable_ps(struct btmrvl_private *priv); 147 int btmrvl_prepare_command(struct btmrvl_private *priv); 148 int btmrvl_enable_hs(struct btmrvl_private *priv); 149 150 #ifdef CONFIG_DEBUG_FS 151 void btmrvl_debugfs_init(struct hci_dev *hdev); 152 void btmrvl_debugfs_remove(struct hci_dev *hdev); 153 #endif 154