tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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#include <linux/ctype.h>
27#include <linux/firmware.h>
28
29#define BTM_HEADER_LEN 4
30#define BTM_UPLD_SIZE 2312
31
32/* Time to wait until Host Sleep state change in millisecond */
33#define WAIT_UNTIL_HS_STATE_CHANGED 5000
34/* Time to wait for command response in millisecond */
35#define WAIT_UNTIL_CMD_RESP 5000
36
37struct btmrvl_thread {
38 struct task_struct *task;
39 wait_queue_head_t wait_q;
40 void *priv;
41};
42
43struct btmrvl_device {
44 void *card;
45 struct hci_dev *hcidev;
46 struct device *dev;
47 const char *cal_data;
48
49 u8 dev_type;
50
51 u8 tx_dnld_rdy;
52
53 u8 psmode;
54 u8 pscmd;
55 u8 hsmode;
56 u8 hscmd;
57
58 /* Low byte is gap, high byte is GPIO */
59 u16 gpio_gap;
60
61 u8 hscfgcmd;
62 u8 sendcmdflag;
63};
64
65struct btmrvl_adapter {
66 u32 int_count;
67 struct sk_buff_head tx_queue;
68 u8 psmode;
69 u8 ps_state;
70 u8 hs_state;
71 u8 wakeup_tries;
72 wait_queue_head_t cmd_wait_q;
73 u8 cmd_complete;
74 bool is_suspended;
75};
76
77struct btmrvl_private {
78 struct btmrvl_device btmrvl_dev;
79 struct btmrvl_adapter *adapter;
80 struct btmrvl_thread main_thread;
81 int (*hw_host_to_card) (struct btmrvl_private *priv,
82 u8 *payload, u16 nb);
83 int (*hw_wakeup_firmware) (struct btmrvl_private *priv);
84 int (*hw_process_int_status) (struct btmrvl_private *priv);
85 spinlock_t driver_lock; /* spinlock used by driver */
86#ifdef CONFIG_DEBUG_FS
87 void *debugfs_data;
88#endif
89};
90
91#define MRVL_VENDOR_PKT 0xFE
92
93/* Bluetooth commands */
94#define BT_CMD_AUTO_SLEEP_MODE 0x23
95#define BT_CMD_HOST_SLEEP_CONFIG 0x59
96#define BT_CMD_HOST_SLEEP_ENABLE 0x5A
97#define BT_CMD_MODULE_CFG_REQ 0x5B
98#define BT_CMD_LOAD_CONFIG_DATA 0x61
99
100/* Sub-commands: Module Bringup/Shutdown Request/Response */
101#define MODULE_BRINGUP_REQ 0xF1
102#define MODULE_BROUGHT_UP 0x00
103#define MODULE_ALREADY_UP 0x0C
104
105#define MODULE_SHUTDOWN_REQ 0xF2
106
107#define BT_EVENT_POWER_STATE 0x20
108
109/* Bluetooth Power States */
110#define BT_PS_ENABLE 0x02
111#define BT_PS_DISABLE 0x03
112#define BT_PS_SLEEP 0x01
113
114#define OGF 0x3F
115
116/* Host Sleep states */
117#define HS_ACTIVATED 0x01
118#define HS_DEACTIVATED 0x00
119
120/* Power Save modes */
121#define PS_SLEEP 0x01
122#define PS_AWAKE 0x00
123
124#define BT_CMD_DATA_SIZE 32
125#define BT_CAL_DATA_SIZE 28
126
127struct btmrvl_event {
128 u8 ec; /* event counter */
129 u8 length;
130 u8 data[4];
131} __packed;
132
133/* Prototype of global function */
134
135int btmrvl_register_hdev(struct btmrvl_private *priv);
136struct btmrvl_private *btmrvl_add_card(void *card);
137int btmrvl_remove_card(struct btmrvl_private *priv);
138
139void btmrvl_interrupt(struct btmrvl_private *priv);
140
141bool btmrvl_check_evtpkt(struct btmrvl_private *priv, struct sk_buff *skb);
142int btmrvl_process_event(struct btmrvl_private *priv, struct sk_buff *skb);
143
144int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, int subcmd);
145int btmrvl_send_hscfg_cmd(struct btmrvl_private *priv);
146int btmrvl_enable_ps(struct btmrvl_private *priv);
147int btmrvl_prepare_command(struct btmrvl_private *priv);
148int btmrvl_enable_hs(struct btmrvl_private *priv);
149
150#ifdef CONFIG_DEBUG_FS
151void btmrvl_debugfs_init(struct hci_dev *hdev);
152void btmrvl_debugfs_remove(struct hci_dev *hdev);
153#endif