3 * \author John Hodge (thePowersGang)
4 * \brief Control block code
9 #include <udi_internal.h>
10 #include <udi_internal_ma.h> // for cUDI_MgmtCbInitList
12 typedef struct sUDI_CBHeader
14 tUDI_MetaLang *Metalang;
15 udi_index_t MetaCBNum;
20 tUDI_MetaLang *UDI_int_GetCbType(udi_cb_t *cb, udi_index_t *meta_cb_num)
22 tUDI_CBHeader *hdr = (void*)cb - offsetof(tUDI_CBHeader, cb);
24 *meta_cb_num = hdr->MetaCBNum;
28 udi_cb_t *udi_cb_alloc_internal_v(tUDI_MetaLang *Meta, udi_index_t MetaCBNum,
29 size_t inline_size, size_t scratch_size, udi_channel_t channel)
31 ASSERTC(MetaCBNum, <, Meta->nCbTypes);
32 size_t base = Meta->CbTypes[MetaCBNum].Size;
33 ASSERTC(base, >=, sizeof(udi_cb_t));
34 base -= sizeof(udi_cb_t);
35 LOG("(%s) udi_cb_t + %i + %i + %i",
36 Meta->Name, base, inline_size, scratch_size);
37 tUDI_CBHeader *cbhdr = NEW(tUDI_CBHeader, + base + inline_size + scratch_size);
38 cbhdr->Metalang = Meta;
39 cbhdr->MetaCBNum = MetaCBNum;
40 udi_cb_t *ret = &cbhdr->cb;
41 ret->channel = channel;
42 ret->scratch = (void*)(ret + 1) + base + inline_size;
45 void *udi_cb_alloc_internal(tUDI_DriverInstance *Inst, udi_ubit8_t bind_cb_idx, udi_channel_t channel)
47 const udi_cb_init_t *cb_init;
50 LOG("Inst=%p(%s), bind_cb_idx=%i, channel=%p",
51 Inst, Inst->Module->ModuleName, bind_cb_idx, channel);
52 ASSERT(Inst->Module->InitInfo);
53 ASSERT(Inst->Module->InitInfo->cb_init_list);
55 for( cb_init = Inst->Module->InitInfo->cb_init_list; cb_init->cb_idx; cb_init ++ )
57 if( cb_init->cb_idx == bind_cb_idx )
59 // TODO: Get base size using meta/cbnum
60 tUDI_MetaLang *metalang = UDI_int_GetMetaLang(Inst->Module, cb_init->meta_idx);
62 Log_Warning("UDI", "Metalang referenced in %s CB %i is invalid (%i)",
63 Inst->Module->ModuleName, bind_cb_idx, cb_init->meta_idx);
66 return udi_cb_alloc_internal_v(metalang, cb_init->meta_cb_num,
67 cb_init->inline_size, cb_init->scratch_requirement, channel);
70 Log_Warning("UDI", "Cannot find CB init def %i for '%s'",
71 bind_cb_idx, Inst->Module->ModuleName);
76 udi_cb_alloc_call_t *callback, //!< Function to be called when the CB is allocated
77 udi_cb_t *gcb, //!< Parent Control Block
79 udi_channel_t default_channel
82 tUDI_DriverInstance *inst = UDI_int_ChannelGetInstance(gcb, false, NULL);
83 void *ret = udi_cb_alloc_internal(inst, cb_idx, default_channel);
87 void udi_cb_alloc_dynamic(
88 udi_cb_alloc_call_t *callback,
91 udi_channel_t default_channel,
92 udi_size_t inline_size,
93 udi_layout_t *inline_layout
99 void udi_cb_alloc_batch(
100 udi_cb_alloc_batch_call_t *callback, //!<
104 udi_boolean_t with_buf,
106 udi_buf_path_t path_handle
112 void udi_cb_free(udi_cb_t *cb)
114 tUDI_CBHeader *hdr = (void*)cb - offsetof(tUDI_CBHeader, cb);
115 // TODO: Ensure that cb is inactive
119 void udi_cancel(udi_cancel_call_t *callback, udi_cb_t *gcb)
125 EXPORT(udi_cb_alloc);
126 EXPORT(udi_cb_alloc_dynamic);
127 EXPORT(udi_cb_alloc_batch);