This source file includes following definitions.
- ACPI_MODULE_NAME
- acpi_ev_install_xrupt_handlers
- acpi_ev_fixed_event_initialize
- acpi_ev_fixed_event_detect
- acpi_ev_fixed_event_dispatch
- acpi_any_fixed_event_status_set
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10 #include <acpi/acpi.h>
11 #include "accommon.h"
12 #include "acevents.h"
13
14 #define _COMPONENT ACPI_EVENTS
15 ACPI_MODULE_NAME("evevent")
16 #if (!ACPI_REDUCED_HARDWARE)
17
18 static acpi_status acpi_ev_fixed_event_initialize(void);
19
20 static u32 acpi_ev_fixed_event_dispatch(u32 event);
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34 acpi_status acpi_ev_initialize_events(void)
35 {
36 acpi_status status;
37
38 ACPI_FUNCTION_TRACE(ev_initialize_events);
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42 if (acpi_gbl_reduced_hardware) {
43 return_ACPI_STATUS(AE_OK);
44 }
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51 status = acpi_ev_fixed_event_initialize();
52 if (ACPI_FAILURE(status)) {
53 ACPI_EXCEPTION((AE_INFO, status,
54 "Unable to initialize fixed events"));
55 return_ACPI_STATUS(status);
56 }
57
58 status = acpi_ev_gpe_initialize();
59 if (ACPI_FAILURE(status)) {
60 ACPI_EXCEPTION((AE_INFO, status,
61 "Unable to initialize general purpose events"));
62 return_ACPI_STATUS(status);
63 }
64
65 return_ACPI_STATUS(status);
66 }
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80 acpi_status acpi_ev_install_xrupt_handlers(void)
81 {
82 acpi_status status;
83
84 ACPI_FUNCTION_TRACE(ev_install_xrupt_handlers);
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88 if (acpi_gbl_reduced_hardware) {
89 return_ACPI_STATUS(AE_OK);
90 }
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94 status = acpi_ev_install_sci_handler();
95 if (ACPI_FAILURE(status)) {
96 ACPI_EXCEPTION((AE_INFO, status,
97 "Unable to install System Control Interrupt handler"));
98 return_ACPI_STATUS(status);
99 }
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103 status = acpi_ev_init_global_lock_handler();
104 if (ACPI_FAILURE(status)) {
105 ACPI_EXCEPTION((AE_INFO, status,
106 "Unable to initialize Global Lock handler"));
107 return_ACPI_STATUS(status);
108 }
109
110 acpi_gbl_events_initialized = TRUE;
111 return_ACPI_STATUS(status);
112 }
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126 static acpi_status acpi_ev_fixed_event_initialize(void)
127 {
128 u32 i;
129 acpi_status status;
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135 for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++) {
136 acpi_gbl_fixed_event_handlers[i].handler = NULL;
137 acpi_gbl_fixed_event_handlers[i].context = NULL;
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141 if (acpi_gbl_fixed_event_info[i].enable_register_id != 0xFF) {
142 status =
143 acpi_write_bit_register(acpi_gbl_fixed_event_info
144 [i].enable_register_id,
145 ACPI_DISABLE_EVENT);
146 if (ACPI_FAILURE(status)) {
147 return (status);
148 }
149 }
150 }
151
152 return (AE_OK);
153 }
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167 u32 acpi_ev_fixed_event_detect(void)
168 {
169 u32 int_status = ACPI_INTERRUPT_NOT_HANDLED;
170 u32 fixed_status;
171 u32 fixed_enable;
172 u32 i;
173 acpi_status status;
174
175 ACPI_FUNCTION_NAME(ev_fixed_event_detect);
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181 status = acpi_hw_register_read(ACPI_REGISTER_PM1_STATUS, &fixed_status);
182 status |=
183 acpi_hw_register_read(ACPI_REGISTER_PM1_ENABLE, &fixed_enable);
184 if (ACPI_FAILURE(status)) {
185 return (int_status);
186 }
187
188 ACPI_DEBUG_PRINT((ACPI_DB_INTERRUPTS,
189 "Fixed Event Block: Enable %08X Status %08X\n",
190 fixed_enable, fixed_status));
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195 for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++) {
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199 if ((fixed_status & acpi_gbl_fixed_event_info[i].
200 status_bit_mask)
201 && (fixed_enable & acpi_gbl_fixed_event_info[i].
202 enable_bit_mask)) {
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207 acpi_fixed_event_count[i]++;
208 if (acpi_gbl_global_event_handler) {
209 acpi_gbl_global_event_handler
210 (ACPI_EVENT_TYPE_FIXED, NULL, i,
211 acpi_gbl_global_event_handler_context);
212 }
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214 int_status |= acpi_ev_fixed_event_dispatch(i);
215 }
216 }
217
218 return (int_status);
219 }
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236 static u32 acpi_ev_fixed_event_dispatch(u32 event)
237 {
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239 ACPI_FUNCTION_ENTRY();
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243 (void)acpi_write_bit_register(acpi_gbl_fixed_event_info[event].
244 status_register_id, ACPI_CLEAR_STATUS);
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250 if (!acpi_gbl_fixed_event_handlers[event].handler) {
251 (void)acpi_write_bit_register(acpi_gbl_fixed_event_info[event].
252 enable_register_id,
253 ACPI_DISABLE_EVENT);
254
255 ACPI_ERROR((AE_INFO,
256 "No installed handler for fixed event - %s (%u), disabling",
257 acpi_ut_get_event_name(event), event));
258
259 return (ACPI_INTERRUPT_NOT_HANDLED);
260 }
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264 return ((acpi_gbl_fixed_event_handlers[event].
265 handler) (acpi_gbl_fixed_event_handlers[event].context));
266 }
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280 u32 acpi_any_fixed_event_status_set(void)
281 {
282 acpi_status status;
283 u32 in_status;
284 u32 in_enable;
285 u32 i;
286
287 status = acpi_hw_register_read(ACPI_REGISTER_PM1_ENABLE, &in_enable);
288 if (ACPI_FAILURE(status)) {
289 return (FALSE);
290 }
291
292 status = acpi_hw_register_read(ACPI_REGISTER_PM1_STATUS, &in_status);
293 if (ACPI_FAILURE(status)) {
294 return (FALSE);
295 }
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300 for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++) {
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304 if ((in_status & acpi_gbl_fixed_event_info[i].status_bit_mask) &&
305 (in_enable & acpi_gbl_fixed_event_info[i].enable_bit_mask)) {
306 return (TRUE);
307 }
308 }
309
310 return (FALSE);
311 }
312
313 #endif