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45 | #else |
45 | #else |
46 | # define IPC_MAX_ASYNC_CALLS 4000 |
46 | # define IPC_MAX_ASYNC_CALLS 4000 |
47 | #endif |
47 | #endif |
48 | 48 | ||
49 | /* Flags for calls */ |
49 | /* Flags for calls */ |
- | 50 | ||
- | 51 | /** This is answer to a call */ |
|
50 | #define IPC_CALL_ANSWERED (1<<0) /**< This is answer to a call */ |
52 | #define IPC_CALL_ANSWERED (1 << 0) |
51 | #define IPC_CALL_STATIC_ALLOC (1<<1) /**< This call will not be freed on error */ |
53 | /** This call will not be freed on error */ |
- | 54 | #define IPC_CALL_STATIC_ALLOC (1 << 1) |
|
52 | #define IPC_CALL_DISCARD_ANSWER (1<<2) /**< Answer will not be passed to userspace, will be discarded */ |
55 | /** Answer will not be passed to userspace, will be discarded */ |
- | 56 | #define IPC_CALL_DISCARD_ANSWER (1 << 2) |
|
- | 57 | /** Call was forwarded */ |
|
53 | #define IPC_CALL_FORWARDED (1<<3) /**< Call was forwarded */ |
58 | #define IPC_CALL_FORWARDED (1 << 3) |
54 | #define IPC_CALL_CONN_ME_TO (1<<4) /**< Identify connect_me_to answer */ |
59 | /** Identify connect_me_to answer */ |
- | 60 | #define IPC_CALL_CONN_ME_TO (1 << 4) |
|
55 | #define IPC_CALL_NOTIF (1<<5) /**< Interrupt notification */ |
61 | /** Interrupt notification */ |
- | 62 | #define IPC_CALL_NOTIF (1 << 5) |
|
56 | 63 | ||
57 | /* Flags of callid (the addresses are aligned at least to 4, |
64 | /* Flags of callid (the addresses are aligned at least to 4, |
58 | * that is why we can use bottom 2 bits of the call address |
65 | * that is why we can use bottom 2 bits of the call address |
59 | */ |
66 | */ |
60 | #define IPC_CALLID_ANSWERED 1 /**< Type of this msg is 'answer' */ |
67 | /** Type of this msg is 'answer' */ |
- | 68 | #define IPC_CALLID_ANSWERED 1 |
|
61 | #define IPC_CALLID_NOTIFICATION 2 /**< Type of this msg is 'notification' */ |
69 | /** Type of this msg is 'notification' */ |
- | 70 | #define IPC_CALLID_NOTIFICATION 2 |
|
62 | 71 | ||
63 | /* Return values from IPC_ASYNC */ |
72 | /* Return values from IPC_ASYNC */ |
64 | #define IPC_CALLRET_FATAL -1 |
73 | #define IPC_CALLRET_FATAL -1 |
65 | #define IPC_CALLRET_TEMPORARY -2 |
74 | #define IPC_CALLRET_TEMPORARY -2 |
66 | 75 | ||
67 | 76 | ||
68 | /* Macros for manipulating calling data */ |
77 | /* Macros for manipulating calling data */ |
69 | #define IPC_SET_RETVAL(data, retval) ((data).args[0] = (retval)) |
78 | #define IPC_SET_RETVAL(data, retval) ((data).args[0] = (retval)) |
70 | #define IPC_SET_METHOD(data, val) ((data).args[0] = (val)) |
79 | #define IPC_SET_METHOD(data, val) ((data).args[0] = (val)) |
71 | #define IPC_SET_ARG1(data, val) ((data).args[1] = (val)) |
80 | #define IPC_SET_ARG1(data, val) ((data).args[1] = (val)) |
72 | #define IPC_SET_ARG2(data, val) ((data).args[2] = (val)) |
81 | #define IPC_SET_ARG2(data, val) ((data).args[2] = (val)) |
73 | #define IPC_SET_ARG3(data, val) ((data).args[3] = (val)) |
82 | #define IPC_SET_ARG3(data, val) ((data).args[3] = (val)) |
74 | 83 | ||
75 | #define IPC_GET_METHOD(data) ((data).args[0]) |
84 | #define IPC_GET_METHOD(data) ((data).args[0]) |
76 | #define IPC_GET_RETVAL(data) ((data).args[0]) |
85 | #define IPC_GET_RETVAL(data) ((data).args[0]) |
77 | 86 | ||
78 | #define IPC_GET_ARG1(data) ((data).args[1]) |
87 | #define IPC_GET_ARG1(data) ((data).args[1]) |
79 | #define IPC_GET_ARG2(data) ((data).args[2]) |
88 | #define IPC_GET_ARG2(data) ((data).args[2]) |
80 | #define IPC_GET_ARG3(data) ((data).args[3]) |
89 | #define IPC_GET_ARG3(data) ((data).args[3]) |
81 | 90 | ||
82 | /* Well known phone descriptors */ |
91 | /* Well known phone descriptors */ |
83 | #define PHONE_NS 0 |
92 | #define PHONE_NS 0 |
84 | 93 | ||
85 | /* System-specific methods - only through special syscalls |
94 | /* System-specific methods - only through special syscalls |
86 | * These methods have special behaviour |
95 | * These methods have special behaviour |
87 | */ |
96 | */ |
88 | /** Protocol for CONNECT - TO - ME |
97 | /** Protocol for CONNECT - TO - ME |
Line 164... | Line 173... | ||
164 | 173 | ||
165 | struct answerbox; |
174 | struct answerbox; |
166 | struct task; |
175 | struct task; |
167 | 176 | ||
168 | typedef enum { |
177 | typedef enum { |
169 | IPC_PHONE_FREE = 0, /**< Phone is free and can be allocated */ |
178 | /** Phone is free and can be allocated */ |
- | 179 | IPC_PHONE_FREE = 0, |
|
170 | IPC_PHONE_CONNECTING, /**< Phone is connecting somewhere */ |
180 | /** Phone is connecting somewhere */ |
- | 181 | IPC_PHONE_CONNECTING, |
|
171 | IPC_PHONE_CONNECTED, /**< Phone is connected */ |
182 | /** Phone is connected */ |
- | 183 | IPC_PHONE_CONNECTED, |
|
172 | IPC_PHONE_HUNGUP, /**< Phone is hung up, waiting for answers to come */ |
184 | /** Phone is hung up, waiting for answers to come */ |
- | 185 | IPC_PHONE_HUNGUP, |
|
173 | IPC_PHONE_SLAMMED /**< Phone was hungup from server */ |
186 | /** Phone was hungup from server */ |
- | 187 | IPC_PHONE_SLAMMED |
|
174 | } ipc_phone_state_t; |
188 | } ipc_phone_state_t; |
175 | 189 | ||
176 | /** Structure identifying phone (in TASK structure) */ |
190 | /** Structure identifying phone (in TASK structure) */ |
177 | typedef struct { |
191 | typedef struct { |
178 | SPINLOCK_DECLARE(lock); |
192 | SPINLOCK_DECLARE(lock); |
Line 187... | Line 201... | ||
187 | 201 | ||
188 | struct task *task; |
202 | struct task *task; |
189 | 203 | ||
190 | waitq_t wq; |
204 | waitq_t wq; |
191 | 205 | ||
192 | link_t connected_phones; /**< Phones connected to this answerbox */ |
206 | /** Phones connected to this answerbox */ |
- | 207 | link_t connected_phones; |
|
193 | link_t calls; /**< Received calls */ |
208 | /** Received calls */ |
- | 209 | link_t calls; |
|
194 | link_t dispatched_calls; /* Should be hash table in the future */ |
210 | link_t dispatched_calls; /* Should be hash table in the future */ |
195 | 211 | ||
196 | link_t answers; /**< Answered calls */ |
212 | /** Answered calls */ |
- | 213 | link_t answers; |
|
197 | 214 | ||
198 | SPINLOCK_DECLARE(irq_lock); |
215 | SPINLOCK_DECLARE(irq_lock); |
199 | link_t irq_notifs; /**< Notifications from IRQ handlers */ |
216 | /** Notifications from IRQ handlers */ |
- | 217 | link_t irq_notifs; |
|
200 | link_t irq_head; /**< IRQs with notifications to this answerbox. */ |
218 | /** IRQs with notifications to this answerbox. */ |
- | 219 | link_t irq_head; |
|
201 | } answerbox_t; |
220 | } answerbox_t; |
202 | 221 | ||
203 | typedef struct { |
222 | typedef struct { |
204 | unative_t args[IPC_CALL_LEN]; |
223 | unative_t args[IPC_CALL_LEN]; |
205 | phone_t *phone; |
224 | phone_t *phone; |
Line 215... | Line 234... | ||
215 | /* The caller box is different from sender->answerbox |
234 | /* The caller box is different from sender->answerbox |
216 | * for synchronous calls |
235 | * for synchronous calls |
217 | */ |
236 | */ |
218 | answerbox_t *callerbox; |
237 | answerbox_t *callerbox; |
219 | 238 | ||
220 | unative_t priv; /**< Private data to internal IPC */ |
239 | /** Private data to internal IPC */ |
- | 240 | unative_t priv; |
|
221 | 241 | ||
222 | ipc_data_t data; /**< Data passed from/to userspace */ |
242 | /** Data passed from/to userspace */ |
- | 243 | ipc_data_t data; |
|
223 | } call_t; |
244 | } call_t; |
224 | 245 | ||
225 | extern void ipc_init(void); |
246 | extern void ipc_init(void); |
226 | extern call_t * ipc_wait_for_call(answerbox_t *box, uint32_t usec, int flags); |
247 | extern call_t * ipc_wait_for_call(answerbox_t *box, uint32_t usec, int flags); |
227 | extern void ipc_answer(answerbox_t *box, call_t *request); |
248 | extern void ipc_answer(answerbox_t *box, call_t *request); |