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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 tx_dnld_rdy; |
46 | |
47 | u8 psmode; |
48 | u8 pscmd; |
49 | u8 hsmode; |
50 | u8 hscmd; |
51 | |
52 | /* Low byte is gap, high byte is GPIO */ |
53 | u16 gpio_gap; |
54 | |
55 | u8 hscfgcmd; |
56 | u8 sendcmdflag; |
57 | }; |
58 | |
59 | struct btmrvl_adapter { |
60 | u32 int_count; |
61 | struct sk_buff_head tx_queue; |
62 | u8 psmode; |
63 | u8 ps_state; |
64 | u8 hs_state; |
65 | u8 wakeup_tries; |
66 | wait_queue_head_t cmd_wait_q; |
67 | u8 cmd_complete; |
68 | }; |
69 | |
70 | struct btmrvl_private { |
71 | struct btmrvl_device btmrvl_dev; |
72 | struct btmrvl_adapter *adapter; |
73 | struct btmrvl_thread main_thread; |
74 | int (*hw_host_to_card) (struct btmrvl_private *priv, |
75 | u8 *payload, u16 nb); |
76 | int (*hw_wakeup_firmware) (struct btmrvl_private *priv); |
77 | spinlock_t driver_lock; /* spinlock used by driver */ |
78 | #ifdef CONFIG_DEBUG_FS |
79 | void *debugfs_data; |
80 | #endif |
81 | }; |
82 | |
83 | #define MRVL_VENDOR_PKT 0xFE |
84 | |
85 | /* Bluetooth commands */ |
86 | #define BT_CMD_AUTO_SLEEP_MODE 0x23 |
87 | #define BT_CMD_HOST_SLEEP_CONFIG 0x59 |
88 | #define BT_CMD_HOST_SLEEP_ENABLE 0x5A |
89 | #define BT_CMD_MODULE_CFG_REQ 0x5B |
90 | |
91 | /* Sub-commands: Module Bringup/Shutdown Request */ |
92 | #define MODULE_BRINGUP_REQ 0xF1 |
93 | #define MODULE_SHUTDOWN_REQ 0xF2 |
94 | |
95 | #define BT_EVENT_POWER_STATE 0x20 |
96 | |
97 | /* Bluetooth Power States */ |
98 | #define BT_PS_ENABLE 0x02 |
99 | #define BT_PS_DISABLE 0x03 |
100 | #define BT_PS_SLEEP 0x01 |
101 | |
102 | #define OGF 0x3F |
103 | |
104 | /* Host Sleep states */ |
105 | #define HS_ACTIVATED 0x01 |
106 | #define HS_DEACTIVATED 0x00 |
107 | |
108 | /* Power Save modes */ |
109 | #define PS_SLEEP 0x01 |
110 | #define PS_AWAKE 0x00 |
111 | |
112 | struct btmrvl_cmd { |
113 | __le16 ocf_ogf; |
114 | u8 length; |
115 | u8 data[4]; |
116 | } __attribute__ ((packed)); |
117 | |
118 | struct btmrvl_event { |
119 | u8 ec; /* event counter */ |
120 | u8 length; |
121 | u8 data[4]; |
122 | } __attribute__ ((packed)); |
123 | |
124 | /* Prototype of global function */ |
125 | |
126 | struct btmrvl_private *btmrvl_add_card(void *card); |
127 | int btmrvl_remove_card(struct btmrvl_private *priv); |
128 | |
129 | void btmrvl_interrupt(struct btmrvl_private *priv); |
130 | |
131 | void btmrvl_check_evtpkt(struct btmrvl_private *priv, struct sk_buff *skb); |
132 | int btmrvl_process_event(struct btmrvl_private *priv, struct sk_buff *skb); |
133 | |
134 | int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, int subcmd); |
135 | int btmrvl_enable_ps(struct btmrvl_private *priv); |
136 | int btmrvl_prepare_command(struct btmrvl_private *priv); |
137 | |
138 | #ifdef CONFIG_DEBUG_FS |
139 | void btmrvl_debugfs_init(struct hci_dev *hdev); |
140 | void btmrvl_debugfs_remove(struct hci_dev *hdev); |
141 | #endif |
142 |
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