diff options
Diffstat (limited to 'drivers/acpi/acpica/evgpeutil.c')
-rw-r--r-- | drivers/acpi/acpica/evgpeutil.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/evgpeutil.c b/drivers/acpi/acpica/evgpeutil.c index 19a0e513ea48..10e477494dcf 100644 --- a/drivers/acpi/acpica/evgpeutil.c +++ b/drivers/acpi/acpica/evgpeutil.c | |||
@@ -154,6 +154,45 @@ u8 acpi_ev_valid_gpe_event(struct acpi_gpe_event_info *gpe_event_info) | |||
154 | 154 | ||
155 | /******************************************************************************* | 155 | /******************************************************************************* |
156 | * | 156 | * |
157 | * FUNCTION: acpi_ev_get_gpe_device | ||
158 | * | ||
159 | * PARAMETERS: GPE_WALK_CALLBACK | ||
160 | * | ||
161 | * RETURN: Status | ||
162 | * | ||
163 | * DESCRIPTION: Matches the input GPE index (0-current_gpe_count) with a GPE | ||
164 | * block device. NULL if the GPE is one of the FADT-defined GPEs. | ||
165 | * | ||
166 | ******************************************************************************/ | ||
167 | |||
168 | acpi_status | ||
169 | acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info, | ||
170 | struct acpi_gpe_block_info *gpe_block, void *context) | ||
171 | { | ||
172 | struct acpi_gpe_device_info *info = context; | ||
173 | |||
174 | /* Increment Index by the number of GPEs in this block */ | ||
175 | |||
176 | info->next_block_base_index += gpe_block->gpe_count; | ||
177 | |||
178 | if (info->index < info->next_block_base_index) { | ||
179 | /* | ||
180 | * The GPE index is within this block, get the node. Leave the node | ||
181 | * NULL for the FADT-defined GPEs | ||
182 | */ | ||
183 | if ((gpe_block->node)->type == ACPI_TYPE_DEVICE) { | ||
184 | info->gpe_device = gpe_block->node; | ||
185 | } | ||
186 | |||
187 | info->status = AE_OK; | ||
188 | return (AE_CTRL_END); | ||
189 | } | ||
190 | |||
191 | return (AE_OK); | ||
192 | } | ||
193 | |||
194 | /******************************************************************************* | ||
195 | * | ||
157 | * FUNCTION: acpi_ev_get_gpe_xrupt_block | 196 | * FUNCTION: acpi_ev_get_gpe_xrupt_block |
158 | * | 197 | * |
159 | * PARAMETERS: interrupt_number - Interrupt for a GPE block | 198 | * PARAMETERS: interrupt_number - Interrupt for a GPE block |