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Diffstat (limited to 'drivers/acpi/events/evevent.c')
-rw-r--r--drivers/acpi/events/evevent.c33
1 files changed, 23 insertions, 10 deletions
diff --git a/drivers/acpi/events/evevent.c b/drivers/acpi/events/evevent.c
index 2a213604ae51..dd3a72a869f4 100644
--- a/drivers/acpi/events/evevent.c
+++ b/drivers/acpi/events/evevent.c
@@ -47,6 +47,16 @@
47#define _COMPONENT ACPI_EVENTS 47#define _COMPONENT ACPI_EVENTS
48 ACPI_MODULE_NAME ("evevent") 48 ACPI_MODULE_NAME ("evevent")
49 49
50/* Local prototypes */
51
52static acpi_status
53acpi_ev_fixed_event_initialize (
54 void);
55
56static u32
57acpi_ev_fixed_event_dispatch (
58 u32 event);
59
50 60
51/******************************************************************************* 61/*******************************************************************************
52 * 62 *
@@ -56,7 +66,7 @@
56 * 66 *
57 * RETURN: Status 67 * RETURN: Status
58 * 68 *
59 * DESCRIPTION: Initialize global data structures for events. 69 * DESCRIPTION: Initialize global data structures for ACPI events (Fixed, GPE)
60 * 70 *
61 ******************************************************************************/ 71 ******************************************************************************/
62 72
@@ -78,9 +88,9 @@ acpi_ev_initialize_events (
78 } 88 }
79 89
80 /* 90 /*
81 * Initialize the Fixed and General Purpose Events. This is 91 * Initialize the Fixed and General Purpose Events. This is done prior to
82 * done prior to enabling SCIs to prevent interrupts from 92 * enabling SCIs to prevent interrupts from occurring before the handlers are
83 * occurring before handers are installed. 93 * installed.
84 */ 94 */
85 status = acpi_ev_fixed_event_initialize (); 95 status = acpi_ev_fixed_event_initialize ();
86 if (ACPI_FAILURE (status)) { 96 if (ACPI_FAILURE (status)) {
@@ -161,7 +171,7 @@ acpi_ev_install_xrupt_handlers (
161 * 171 *
162 ******************************************************************************/ 172 ******************************************************************************/
163 173
164acpi_status 174static acpi_status
165acpi_ev_fixed_event_initialize ( 175acpi_ev_fixed_event_initialize (
166 void) 176 void)
167{ 177{
@@ -180,7 +190,8 @@ acpi_ev_fixed_event_initialize (
180 /* Enable the fixed event */ 190 /* Enable the fixed event */
181 191
182 if (acpi_gbl_fixed_event_info[i].enable_register_id != 0xFF) { 192 if (acpi_gbl_fixed_event_info[i].enable_register_id != 0xFF) {
183 status = acpi_set_register (acpi_gbl_fixed_event_info[i].enable_register_id, 193 status = acpi_set_register (
194 acpi_gbl_fixed_event_info[i].enable_register_id,
184 0, ACPI_MTX_LOCK); 195 0, ACPI_MTX_LOCK);
185 if (ACPI_FAILURE (status)) { 196 if (ACPI_FAILURE (status)) {
186 return (status); 197 return (status);
@@ -200,7 +211,7 @@ acpi_ev_fixed_event_initialize (
200 * 211 *
201 * RETURN: INTERRUPT_HANDLED or INTERRUPT_NOT_HANDLED 212 * RETURN: INTERRUPT_HANDLED or INTERRUPT_NOT_HANDLED
202 * 213 *
203 * DESCRIPTION: Checks the PM status register for fixed events 214 * DESCRIPTION: Checks the PM status register for active fixed events
204 * 215 *
205 ******************************************************************************/ 216 ******************************************************************************/
206 217
@@ -221,8 +232,10 @@ acpi_ev_fixed_event_detect (
221 * Read the fixed feature status and enable registers, as all the cases 232 * Read the fixed feature status and enable registers, as all the cases
222 * depend on their values. Ignore errors here. 233 * depend on their values. Ignore errors here.
223 */ 234 */
224 (void) acpi_hw_register_read (ACPI_MTX_DO_NOT_LOCK, ACPI_REGISTER_PM1_STATUS, &fixed_status); 235 (void) acpi_hw_register_read (ACPI_MTX_DO_NOT_LOCK, ACPI_REGISTER_PM1_STATUS,
225 (void) acpi_hw_register_read (ACPI_MTX_DO_NOT_LOCK, ACPI_REGISTER_PM1_ENABLE, &fixed_enable); 236 &fixed_status);
237 (void) acpi_hw_register_read (ACPI_MTX_DO_NOT_LOCK, ACPI_REGISTER_PM1_ENABLE,
238 &fixed_enable);
226 239
227 ACPI_DEBUG_PRINT ((ACPI_DB_INTERRUPTS, 240 ACPI_DEBUG_PRINT ((ACPI_DB_INTERRUPTS,
228 "Fixed Event Block: Enable %08X Status %08X\n", 241 "Fixed Event Block: Enable %08X Status %08X\n",
@@ -259,7 +272,7 @@ acpi_ev_fixed_event_detect (
259 * 272 *
260 ******************************************************************************/ 273 ******************************************************************************/
261 274
262u32 275static u32
263acpi_ev_fixed_event_dispatch ( 276acpi_ev_fixed_event_dispatch (
264 u32 event) 277 u32 event)
265{ 278{