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