Commit | Line | Data |
---|---|---|
53618cc1 PS |
1 | /* |
2 | * Shared Transport Core header file | |
3 | * | |
4 | * Copyright (C) 2009 Texas Instruments | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License version 2 as | |
8 | * published by the Free Software Foundation. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program; if not, write to the Free Software | |
17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
18 | * | |
19 | */ | |
20 | ||
21 | #ifndef ST_CORE_H | |
22 | #define ST_CORE_H | |
23 | ||
24 | #include <linux/skbuff.h> | |
25 | #include "st.h" | |
26 | ||
27 | /* states of protocol list */ | |
28 | #define ST_NOTEMPTY 1 | |
29 | #define ST_EMPTY 0 | |
30 | ||
31 | /* | |
32 | * possible st_states | |
33 | */ | |
34 | #define ST_INITIALIZING 1 | |
35 | #define ST_REG_IN_PROGRESS 2 | |
36 | #define ST_REG_PENDING 3 | |
37 | #define ST_WAITING_FOR_RESP 4 | |
38 | ||
39 | /* | |
40 | * local data required for ST/KIM/ST-HCI-LL | |
41 | */ | |
42 | struct st_data_s { | |
43 | unsigned long st_state; | |
44 | /* | |
45 | * an instance of tty_struct & ldisc ops to move around | |
46 | */ | |
47 | struct tty_struct *tty; | |
48 | struct tty_ldisc_ops *ldisc_ops; | |
49 | /* | |
50 | * the tx skb - | |
51 | * if the skb is already dequeued and the tty failed to write the same | |
52 | * maintain the skb to write in the next transaction | |
53 | */ | |
54 | struct sk_buff *tx_skb; | |
55 | #define ST_TX_SENDING 1 | |
56 | #define ST_TX_WAKEUP 2 | |
57 | unsigned long tx_state; | |
58 | /* | |
59 | * list of protocol registered | |
60 | */ | |
61 | struct st_proto_s *list[ST_MAX]; | |
62 | /* | |
63 | * lock | |
64 | */ | |
65 | unsigned long rx_state; | |
66 | unsigned long rx_count; | |
67 | struct sk_buff *rx_skb; | |
68 | struct sk_buff_head txq, tx_waitq; | |
69 | spinlock_t lock; /* ST LL state lock */ | |
70 | unsigned char protos_registered; | |
71 | unsigned long ll_state; /* ST LL power state */ | |
72 | }; | |
73 | ||
74 | /* point this to tty->driver->write or tty->ops->write | |
75 | * depending upon the kernel version | |
76 | */ | |
77 | int st_int_write(struct st_data_s*, const unsigned char*, int); | |
78 | /* internal write function, passed onto protocol drivers | |
79 | * via the write function ptr of protocol struct | |
80 | */ | |
81 | long st_write(struct sk_buff *); | |
82 | /* function to be called from ST-LL | |
83 | */ | |
84 | void st_ll_send_frame(enum proto_type, struct sk_buff *); | |
85 | /* internal wake up function */ | |
86 | void st_tx_wakeup(struct st_data_s *st_data); | |
87 | ||
88 | int st_core_init(struct st_data_s **); | |
89 | void st_core_exit(struct st_data_s *); | |
90 | void st_kim_ref(struct st_data_s **); | |
91 | ||
92 | #define GPS_STUB_TEST | |
93 | #ifdef GPS_STUB_TEST | |
94 | int gps_chrdrv_stub_write(const unsigned char*, int); | |
95 | void gps_chrdrv_stub_init(void); | |
96 | #endif | |
97 | ||
98 | #endif /*ST_CORE_H */ |