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Lines 110-117
static struct acpi_ec {
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| 110 |
struct mutex lock; |
110 |
struct mutex lock; |
| 111 |
wait_queue_head_t wait; |
111 |
wait_queue_head_t wait; |
| 112 |
struct list_head list; |
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struct list_head list; |
| 113 |
struct delayed_work work; |
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| 114 |
atomic_t irq_count; |
| 115 |
u8 pre_state; |
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u8 pre_state; |
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/* record the EC status when last EC interrrupt happens */ |
114 |
/* record the EC status when last EC interrrupt happens */ |
| 117 |
atomic_t ec_irq_count; |
115 |
atomic_t ec_irq_count; |
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Lines 193-216
static inline int acpi_ec_check_status(s
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| 193 |
return 0; |
191 |
return 0; |
| 194 |
} |
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} |
| 195 |
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| 196 |
static void ec_schedule_ec_poll(struct acpi_ec *ec) |
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| 197 |
{ |
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if (test_bit(EC_FLAGS_RESCHEDULE_POLL, &ec->flags)) |
| 199 |
schedule_delayed_work(&ec->work, |
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msecs_to_jiffies(ACPI_EC_DELAY)); |
| 201 |
} |
| 202 |
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| 203 |
static void ec_switch_to_poll_mode(struct acpi_ec *ec) |
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{ |
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set_bit(EC_FLAGS_NO_GPE, &ec->flags); |
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clear_bit(EC_FLAGS_GPE_MODE, &ec->flags); |
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acpi_disable_gpe(NULL, ec->gpe, ACPI_NOT_ISR); |
| 208 |
set_bit(EC_FLAGS_RESCHEDULE_POLL, &ec->flags); |
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} |
| 210 |
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| 211 |
static int acpi_ec_wait(struct acpi_ec *ec, enum ec_event event, int force_poll) |
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static int acpi_ec_wait(struct acpi_ec *ec, enum ec_event event, int force_poll) |
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{ |
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{ |
| 213 |
atomic_set(&ec->irq_count, 0); |
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| 214 |
if (likely(test_bit(EC_FLAGS_GPE_MODE, &ec->flags)) && |
196 |
if (likely(test_bit(EC_FLAGS_GPE_MODE, &ec->flags)) && |
| 215 |
likely(!force_poll)) { |
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likely(!force_poll)) { |
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if (wait_event_timeout(ec->wait, acpi_ec_check_status(ec, event), |
198 |
if (wait_event_timeout(ec->wait, acpi_ec_check_status(ec, event), |
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Lines 632-644
static u32 acpi_ec_gpe_handler(void *dat
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ACPI_INTERRUPT_HANDLED : ACPI_INTERRUPT_NOT_HANDLED; |
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ACPI_INTERRUPT_HANDLED : ACPI_INTERRUPT_NOT_HANDLED; |
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} |
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} |
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616 |
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static void do_ec_poll(struct work_struct *work) |
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| 636 |
{ |
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struct acpi_ec *ec = container_of(work, struct acpi_ec, work.work); |
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atomic_set(&ec->irq_count, 0); |
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(void)acpi_ec_gpe_handler(ec); |
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} |
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| 642 |
/* -------------------------------------------------------------------------- |
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/* -------------------------------------------------------------------------- |
| 643 |
Address Space Management |
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Address Space Management |
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-------------------------------------------------------------------------- */ |
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-------------------------------------------------------------------------- */ |
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Lines 791-797
static struct acpi_ec *make_acpi_ec(void
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| 791 |
init_waitqueue_head(&ec->wait); |
766 |
init_waitqueue_head(&ec->wait); |
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INIT_LIST_HEAD(&ec->list); |
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INIT_LIST_HEAD(&ec->list); |
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ec->pre_jiffies = jiffies; |
768 |
ec->pre_jiffies = jiffies; |
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atomic_set(&ec->irq_count, 0); |
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| 795 |
return ec; |
769 |
return ec; |
| 796 |
} |
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} |
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Lines 830-841
ec_parse_device(acpi_handle handle, u32
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return AE_CTRL_TERMINATE; |
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return AE_CTRL_TERMINATE; |
| 831 |
} |
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} |
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| 833 |
static void ec_poll_stop(struct acpi_ec *ec) |
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| 834 |
{ |
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clear_bit(EC_FLAGS_RESCHEDULE_POLL, &ec->flags); |
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cancel_delayed_work(&ec->work); |
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} |
| 838 |
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| 839 |
static void ec_remove_handlers(struct acpi_ec *ec) |
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static void ec_remove_handlers(struct acpi_ec *ec) |
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{ |
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{ |
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if (ACPI_FAILURE(acpi_remove_address_space_handler(ec->handle, |
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if (ACPI_FAILURE(acpi_remove_address_space_handler(ec->handle, |