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