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 <net/bluetooth/bluetooth.h> 25 26 #define BTM_HEADER_LEN 4 27 #define BTM_UPLD_SIZE 2312 28 29 /* Time to wait until Host Sleep state change in millisecond */ 30 #define WAIT_UNTIL_HS_STATE_CHANGED 5000 31 /* Time to wait for command response in millisecond */ 32 #define WAIT_UNTIL_CMD_RESP 5000 33 34 struct btmrvl_thread { 35 struct task_struct *task; 36 wait_queue_head_t wait_q; 37 void *priv; 38 }; 39 40 struct btmrvl_device { 41 void *card; 42 struct hci_dev *hcidev; 43 44 u8 tx_dnld_rdy; 45 46 u8 psmode; 47 u8 pscmd; 48 u8 hsmode; 49 u8 hscmd; 50 51 /* Low byte is gap, high byte is GPIO */ 52 u16 gpio_gap; 53 54 u8 hscfgcmd; 55 u8 sendcmdflag; 56 }; 57 58 struct btmrvl_adapter { 59 u32 int_count; 60 struct sk_buff_head tx_queue; 61 u8 psmode; 62 u8 ps_state; 63 u8 hs_state; 64 u8 wakeup_tries; 65 wait_queue_head_t cmd_wait_q; 66 u8 cmd_complete; 67 }; 68 69 struct btmrvl_private { 70 struct btmrvl_device btmrvl_dev; 71 struct btmrvl_adapter *adapter; 72 struct btmrvl_thread main_thread; 73 int (*hw_host_to_card) (struct btmrvl_private *priv, 74 u8 *payload, u16 nb); 75 int (*hw_wakeup_firmware) (struct btmrvl_private *priv); 76 spinlock_t driver_lock; /* spinlock used by driver */ 77 #ifdef CONFIG_DEBUG_FS 78 void *debugfs_data; 79 #endif 80 }; 81 82 #define MRVL_VENDOR_PKT 0xFE 83 84 /* Bluetooth commands */ 85 #define BT_CMD_AUTO_SLEEP_MODE 0x23 86 #define BT_CMD_HOST_SLEEP_CONFIG 0x59 87 #define BT_CMD_HOST_SLEEP_ENABLE 0x5A 88 #define BT_CMD_MODULE_CFG_REQ 0x5B 89 90 /* Sub-commands: Module Bringup/Shutdown Request */ 91 #define MODULE_BRINGUP_REQ 0xF1 92 #define MODULE_SHUTDOWN_REQ 0xF2 93 94 #define BT_EVENT_POWER_STATE 0x20 95 96 /* Bluetooth Power States */ 97 #define BT_PS_ENABLE 0x02 98 #define BT_PS_DISABLE 0x03 99 #define BT_PS_SLEEP 0x01 100 101 #define OGF 0x3F 102 103 /* Host Sleep states */ 104 #define HS_ACTIVATED 0x01 105 #define HS_DEACTIVATED 0x00 106 107 /* Power Save modes */ 108 #define PS_SLEEP 0x01 109 #define PS_AWAKE 0x00 110 111 struct btmrvl_cmd { 112 __le16 ocf_ogf; 113 u8 length; 114 u8 data[4]; 115 } __attribute__ ((packed)); 116 117 struct btmrvl_event { 118 u8 ec; /* event counter */ 119 u8 length; 120 u8 data[4]; 121 } __attribute__ ((packed)); 122 123 /* Prototype of global function */ 124 125 struct btmrvl_private *btmrvl_add_card(void *card); 126 int btmrvl_remove_card(struct btmrvl_private *priv); 127 128 void btmrvl_interrupt(struct btmrvl_private *priv); 129 130 void btmrvl_check_evtpkt(struct btmrvl_private *priv, struct sk_buff *skb); 131 int btmrvl_process_event(struct btmrvl_private *priv, struct sk_buff *skb); 132 133 int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, int subcmd); 134 int btmrvl_enable_ps(struct btmrvl_private *priv); 135 int btmrvl_prepare_command(struct btmrvl_private *priv); 136 137 #ifdef CONFIG_DEBUG_FS 138 void btmrvl_debugfs_init(struct hci_dev *hdev); 139 void btmrvl_debugfs_remove(struct hci_dev *hdev); 140 #endif 141