mirror of
https://github.com/AetherDroid/android_kernel_samsung_on5xelte.git
synced 2025-09-08 17:18:05 -04:00
Fixed MTP to work with TWRP
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awab228
commit
f6dfaef42e
50820 changed files with 20846062 additions and 0 deletions
216
include/linux/irqdesc.h
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216
include/linux/irqdesc.h
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#ifndef _LINUX_IRQDESC_H
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#define _LINUX_IRQDESC_H
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/*
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* Core internal functions to deal with irq descriptors
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*
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* This include will move to kernel/irq once we cleaned up the tree.
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* For now it's included from <linux/irq.h>
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*/
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struct irq_affinity_notify;
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struct proc_dir_entry;
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struct module;
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struct irq_desc;
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struct irq_domain;
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struct pt_regs;
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/**
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* struct irq_desc - interrupt descriptor
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* @irq_data: per irq and chip data passed down to chip functions
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* @kstat_irqs: irq stats per cpu
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* @handle_irq: highlevel irq-events handler
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* @preflow_handler: handler called before the flow handler (currently used by sparc)
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* @action: the irq action chain
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* @status: status information
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* @core_internal_state__do_not_mess_with_it: core internal status information
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* @depth: disable-depth, for nested irq_disable() calls
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* @wake_depth: enable depth, for multiple irq_set_irq_wake() callers
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* @irq_count: stats field to detect stalled irqs
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* @last_unhandled: aging timer for unhandled count
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* @irqs_unhandled: stats field for spurious unhandled interrupts
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* @threads_handled: stats field for deferred spurious detection of threaded handlers
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* @threads_handled_last: comparator field for deferred spurious detection of theraded handlers
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* @lock: locking for SMP
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* @affinity_hint: hint to user space for preferred irq affinity
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* @affinity_notify: context for notification of affinity changes
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* @pending_mask: pending rebalanced interrupts
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* @threads_oneshot: bitfield to handle shared oneshot threads
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* @threads_active: number of irqaction threads currently running
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* @wait_for_threads: wait queue for sync_irq to wait for threaded handlers
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* @nr_actions: number of installed actions on this descriptor
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* @no_suspend_depth: number of irqactions on a irq descriptor with
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* IRQF_NO_SUSPEND set
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* @force_resume_depth: number of irqactions on a irq descriptor with
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* IRQF_FORCE_RESUME set
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* @dir: /proc/irq/ procfs entry
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* @name: flow handler name for /proc/interrupts output
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*/
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struct irq_desc {
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struct irq_data irq_data;
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unsigned int __percpu *kstat_irqs;
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irq_flow_handler_t handle_irq;
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#ifdef CONFIG_IRQ_PREFLOW_FASTEOI
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irq_preflow_handler_t preflow_handler;
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#endif
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struct irqaction *action; /* IRQ action list */
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unsigned int status_use_accessors;
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unsigned int core_internal_state__do_not_mess_with_it;
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unsigned int depth; /* nested irq disables */
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unsigned int wake_depth; /* nested wake enables */
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unsigned int irq_count; /* For detecting broken IRQs */
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unsigned long last_unhandled; /* Aging timer for unhandled count */
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unsigned int irqs_unhandled;
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atomic_t threads_handled;
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int threads_handled_last;
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raw_spinlock_t lock;
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struct cpumask *percpu_enabled;
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#ifdef CONFIG_SMP
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const struct cpumask *affinity_hint;
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struct irq_affinity_notify *affinity_notify;
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#ifdef CONFIG_GENERIC_PENDING_IRQ
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cpumask_var_t pending_mask;
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#endif
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#endif
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unsigned long threads_oneshot;
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atomic_t threads_active;
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wait_queue_head_t wait_for_threads;
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#ifdef CONFIG_PM_SLEEP
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unsigned int nr_actions;
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unsigned int no_suspend_depth;
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unsigned int force_resume_depth;
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#endif
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#ifdef CONFIG_PROC_FS
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struct proc_dir_entry *dir;
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#endif
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int parent_irq;
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struct module *owner;
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const char *name;
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} ____cacheline_internodealigned_in_smp;
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#ifndef CONFIG_SPARSE_IRQ
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extern struct irq_desc irq_desc[NR_IRQS];
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#endif
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static inline struct irq_data *irq_desc_get_irq_data(struct irq_desc *desc)
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{
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return &desc->irq_data;
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}
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static inline struct irq_chip *irq_desc_get_chip(struct irq_desc *desc)
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{
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return desc->irq_data.chip;
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}
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static inline void *irq_desc_get_chip_data(struct irq_desc *desc)
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{
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return desc->irq_data.chip_data;
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}
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static inline void *irq_desc_get_handler_data(struct irq_desc *desc)
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{
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return desc->irq_data.handler_data;
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}
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static inline struct msi_desc *irq_desc_get_msi_desc(struct irq_desc *desc)
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{
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return desc->irq_data.msi_desc;
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}
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/*
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* Architectures call this to let the generic IRQ layer
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* handle an interrupt. If the descriptor is attached to an
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* irqchip-style controller then we call the ->handle_irq() handler,
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* and it calls __do_IRQ() if it's attached to an irqtype-style controller.
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*/
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static inline void generic_handle_irq_desc(unsigned int irq, struct irq_desc *desc)
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{
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desc->handle_irq(irq, desc);
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}
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int generic_handle_irq(unsigned int irq);
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#ifdef CONFIG_HANDLE_DOMAIN_IRQ
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/*
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* Convert a HW interrupt number to a logical one using a IRQ domain,
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* and handle the result interrupt number. Return -EINVAL if
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* conversion failed. Providing a NULL domain indicates that the
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* conversion has already been done.
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*/
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int __handle_domain_irq(struct irq_domain *domain, unsigned int hwirq,
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bool lookup, struct pt_regs *regs);
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static inline int handle_domain_irq(struct irq_domain *domain,
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unsigned int hwirq, struct pt_regs *regs)
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{
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return __handle_domain_irq(domain, hwirq, true, regs);
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}
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#endif
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/* Test to see if a driver has successfully requested an irq */
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static inline int irq_has_action(unsigned int irq)
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{
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struct irq_desc *desc = irq_to_desc(irq);
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return desc->action != NULL;
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}
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/* caller has locked the irq_desc and both params are valid */
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static inline void __irq_set_handler_locked(unsigned int irq,
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irq_flow_handler_t handler)
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{
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struct irq_desc *desc;
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desc = irq_to_desc(irq);
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desc->handle_irq = handler;
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}
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/* caller has locked the irq_desc and both params are valid */
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static inline void
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__irq_set_chip_handler_name_locked(unsigned int irq, struct irq_chip *chip,
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irq_flow_handler_t handler, const char *name)
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{
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struct irq_desc *desc;
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desc = irq_to_desc(irq);
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irq_desc_get_irq_data(desc)->chip = chip;
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desc->handle_irq = handler;
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desc->name = name;
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}
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static inline int irq_balancing_disabled(unsigned int irq)
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{
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struct irq_desc *desc;
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desc = irq_to_desc(irq);
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return desc->status_use_accessors & IRQ_NO_BALANCING_MASK;
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}
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static inline int irq_is_percpu(unsigned int irq)
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{
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struct irq_desc *desc;
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desc = irq_to_desc(irq);
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return desc->status_use_accessors & IRQ_PER_CPU;
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}
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static inline void
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irq_set_lockdep_class(unsigned int irq, struct lock_class_key *class)
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{
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struct irq_desc *desc = irq_to_desc(irq);
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if (desc)
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lockdep_set_class(&desc->lock, class);
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}
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#ifdef CONFIG_IRQ_PREFLOW_FASTEOI
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static inline void
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__irq_set_preflow_handler(unsigned int irq, irq_preflow_handler_t handler)
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{
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struct irq_desc *desc;
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desc = irq_to_desc(irq);
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desc->preflow_handler = handler;
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}
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#endif
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#endif
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