Root/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
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
35struct btmrvl_thread {
36    struct task_struct *task;
37    wait_queue_head_t wait_q;
38    void *priv;
39};
40
41struct 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
61struct 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    bool is_suspended;
71};
72
73struct btmrvl_private {
74    struct btmrvl_device btmrvl_dev;
75    struct btmrvl_adapter *adapter;
76    struct btmrvl_thread main_thread;
77    int (*hw_host_to_card) (struct btmrvl_private *priv,
78                u8 *payload, u16 nb);
79    int (*hw_wakeup_firmware) (struct btmrvl_private *priv);
80    int (*hw_process_int_status) (struct btmrvl_private *priv);
81    spinlock_t driver_lock; /* spinlock used by driver */
82#ifdef CONFIG_DEBUG_FS
83    void *debugfs_data;
84#endif
85};
86
87#define MRVL_VENDOR_PKT 0xFE
88
89/* Bluetooth commands */
90#define BT_CMD_AUTO_SLEEP_MODE 0x23
91#define BT_CMD_HOST_SLEEP_CONFIG 0x59
92#define BT_CMD_HOST_SLEEP_ENABLE 0x5A
93#define BT_CMD_MODULE_CFG_REQ 0x5B
94
95/* Sub-commands: Module Bringup/Shutdown Request/Response */
96#define MODULE_BRINGUP_REQ 0xF1
97#define MODULE_BROUGHT_UP 0x00
98#define MODULE_ALREADY_UP 0x0C
99
100#define MODULE_SHUTDOWN_REQ 0xF2
101
102#define BT_EVENT_POWER_STATE 0x20
103
104/* Bluetooth Power States */
105#define BT_PS_ENABLE 0x02
106#define BT_PS_DISABLE 0x03
107#define BT_PS_SLEEP 0x01
108
109#define OGF 0x3F
110
111/* Host Sleep states */
112#define HS_ACTIVATED 0x01
113#define HS_DEACTIVATED 0x00
114
115/* Power Save modes */
116#define PS_SLEEP 0x01
117#define PS_AWAKE 0x00
118
119struct btmrvl_cmd {
120    __le16 ocf_ogf;
121    u8 length;
122    u8 data[4];
123} __packed;
124
125struct btmrvl_event {
126    u8 ec; /* event counter */
127    u8 length;
128    u8 data[4];
129} __packed;
130
131/* Prototype of global function */
132
133int btmrvl_register_hdev(struct btmrvl_private *priv);
134struct btmrvl_private *btmrvl_add_card(void *card);
135int btmrvl_remove_card(struct btmrvl_private *priv);
136
137void btmrvl_interrupt(struct btmrvl_private *priv);
138
139bool btmrvl_check_evtpkt(struct btmrvl_private *priv, struct sk_buff *skb);
140int btmrvl_process_event(struct btmrvl_private *priv, struct sk_buff *skb);
141
142int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, int subcmd);
143int btmrvl_send_hscfg_cmd(struct btmrvl_private *priv);
144int btmrvl_enable_ps(struct btmrvl_private *priv);
145int btmrvl_prepare_command(struct btmrvl_private *priv);
146int btmrvl_enable_hs(struct btmrvl_private *priv);
147
148#ifdef CONFIG_DEBUG_FS
149void btmrvl_debugfs_init(struct hci_dev *hdev);
150void btmrvl_debugfs_remove(struct hci_dev *hdev);
151#endif
152

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