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af873fce | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
09009f30 SB |
2 | /* |
3 | * Copyright (C) ST-Ericsson AB 2010 | |
26ee65e6 | 4 | * Author: Sjur Brendeland |
09009f30 SB |
5 | */ |
6 | ||
7 | #ifndef CFCTRL_H_ | |
8 | #define CFCTRL_H_ | |
9 | #include <net/caif/caif_layer.h> | |
10 | #include <net/caif/cfsrvl.h> | |
11 | ||
12 | /* CAIF Control packet commands */ | |
13 | enum cfctrl_cmd { | |
14 | CFCTRL_CMD_LINK_SETUP = 0, | |
15 | CFCTRL_CMD_LINK_DESTROY = 1, | |
16 | CFCTRL_CMD_LINK_ERR = 2, | |
17 | CFCTRL_CMD_ENUM = 3, | |
18 | CFCTRL_CMD_SLEEP = 4, | |
19 | CFCTRL_CMD_WAKE = 5, | |
20 | CFCTRL_CMD_LINK_RECONF = 6, | |
21 | CFCTRL_CMD_START_REASON = 7, | |
22 | CFCTRL_CMD_RADIO_SET = 8, | |
23 | CFCTRL_CMD_MODEM_SET = 9, | |
24 | CFCTRL_CMD_MASK = 0xf | |
25 | }; | |
26 | ||
27 | /* Channel types */ | |
28 | enum cfctrl_srv { | |
29 | CFCTRL_SRV_DECM = 0, | |
30 | CFCTRL_SRV_VEI = 1, | |
31 | CFCTRL_SRV_VIDEO = 2, | |
32 | CFCTRL_SRV_DBG = 3, | |
33 | CFCTRL_SRV_DATAGRAM = 4, | |
34 | CFCTRL_SRV_RFM = 5, | |
35 | CFCTRL_SRV_UTIL = 6, | |
36 | CFCTRL_SRV_MASK = 0xf | |
37 | }; | |
38 | ||
39 | #define CFCTRL_RSP_BIT 0x20 | |
40 | #define CFCTRL_ERR_BIT 0x10 | |
41 | ||
42 | struct cfctrl_rsp { | |
43 | void (*linksetup_rsp)(struct cflayer *layer, u8 linkid, | |
44 | enum cfctrl_srv serv, u8 phyid, | |
45 | struct cflayer *adapt_layer); | |
8d545c8f | 46 | void (*linkdestroy_rsp)(struct cflayer *layer, u8 linkid); |
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47 | void (*linkerror_ind)(void); |
48 | void (*enum_rsp)(void); | |
49 | void (*sleep_rsp)(void); | |
50 | void (*wake_rsp)(void); | |
51 | void (*restart_rsp)(void); | |
52 | void (*radioset_rsp)(void); | |
53 | void (*reject_rsp)(struct cflayer *layer, u8 linkid, | |
d577f1cc | 54 | struct cflayer *client_layer); |
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55 | }; |
56 | ||
57 | /* Link Setup Parameters for CAIF-Links. */ | |
58 | struct cfctrl_link_param { | |
59 | enum cfctrl_srv linktype;/* (T3,T0) Type of Channel */ | |
60 | u8 priority; /* (P4,P0) Priority of the channel */ | |
61 | u8 phyid; /* (U2-U0) Physical interface to connect */ | |
62 | u8 endpoint; /* (E1,E0) Endpoint for data channels */ | |
63 | u8 chtype; /* (H1,H0) Channel-Type, applies to | |
64 | * VEI, DEBUG */ | |
65 | union { | |
66 | struct { | |
67 | u8 connid; /* (D7,D0) Video LinkId */ | |
68 | } video; | |
69 | ||
70 | struct { | |
71 | u32 connid; /* (N31,Ngit0) Connection ID used | |
72 | * for Datagram */ | |
73 | } datagram; | |
74 | ||
75 | struct { | |
76 | u32 connid; /* Connection ID used for RFM */ | |
77 | char volume[20]; /* Volume to mount for RFM */ | |
78 | } rfm; /* Configuration for RFM */ | |
79 | ||
80 | struct { | |
81 | u16 fifosize_kb; /* Psock FIFO size in KB */ | |
82 | u16 fifosize_bufs; /* Psock # signal buffers */ | |
83 | char name[16]; /* Name of the PSOCK service */ | |
84 | u8 params[255]; /* Link setup Parameters> */ | |
85 | u16 paramlen; /* Length of Link Setup | |
86 | * Parameters */ | |
87 | } utility; /* Configuration for Utility Links (Psock) */ | |
88 | } u; | |
89 | }; | |
90 | ||
91 | /* This structure is used internally in CFCTRL */ | |
92 | struct cfctrl_request_info { | |
93 | int sequence_no; | |
94 | enum cfctrl_cmd cmd; | |
95 | u8 channel_id; | |
96 | struct cfctrl_link_param param; | |
09009f30 | 97 | struct cflayer *client_layer; |
7aecf494 | 98 | struct list_head list; |
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99 | }; |
100 | ||
101 | struct cfctrl { | |
102 | struct cfsrvl serv; | |
103 | struct cfctrl_rsp res; | |
104 | atomic_t req_seq_no; | |
105 | atomic_t rsp_seq_no; | |
7aecf494 | 106 | struct list_head list; |
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107 | /* Protects from simultaneous access to first_req list */ |
108 | spinlock_t info_list_lock; | |
109 | #ifndef CAIF_NO_LOOP | |
110 | u8 loop_linkid; | |
111 | int loop_linkused[256]; | |
112 | /* Protects simultaneous access to loop_linkid and loop_linkused */ | |
113 | spinlock_t loop_linkid_lock; | |
114 | #endif | |
115 | ||
116 | }; | |
117 | ||
118 | void cfctrl_enum_req(struct cflayer *cfctrl, u8 physlinkid); | |
8d545c8f | 119 | int cfctrl_linkup_request(struct cflayer *cfctrl, |
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120 | struct cfctrl_link_param *param, |
121 | struct cflayer *user_layer); | |
122 | int cfctrl_linkdown_req(struct cflayer *cfctrl, u8 linkid, | |
123 | struct cflayer *client); | |
73d6ac63 | 124 | |
09009f30 | 125 | struct cflayer *cfctrl_create(void); |
09009f30 | 126 | struct cfctrl_rsp *cfctrl_get_respfuncs(struct cflayer *layer); |
c85c2951 | 127 | int cfctrl_cancel_req(struct cflayer *layr, struct cflayer *adap_layer); |
128 | void cfctrl_remove(struct cflayer *layr); | |
8d545c8f | 129 | |
09009f30 | 130 | #endif /* CFCTRL_H_ */ |