include/linux/htirq.h

   1 #ifndef LINUX_HTIRQ_H
   2 #define LINUX_HTIRQ_H
   3
   4 struct pci_dev;
   5 struct irq_data;
   6
   7 struct ht_irq_msg {
   8         u32     address_lo;     /* low 32 bits of the ht irq message */
   9         u32     address_hi;     /* high 32 bits of the it irq message */
  10 };
  11
  12 typedef void (ht_irq_update_t)(struct pci_dev *dev, int irq,
  13                                struct ht_irq_msg *msg);
  14
  15 struct ht_irq_cfg {
  16         struct pci_dev *dev;
  17          /* Update callback used to cope with buggy hardware */
  18         ht_irq_update_t *update;
  19         unsigned pos;
  20         unsigned idx;
  21         struct ht_irq_msg msg;
  22 };
  23
  24 /* Helper functions.. */
  25 void fetch_ht_irq_msg(unsigned int irq, struct ht_irq_msg *msg);
  26 void write_ht_irq_msg(unsigned int irq, struct ht_irq_msg *msg);
  27 void mask_ht_irq(struct irq_data *data);
  28 void unmask_ht_irq(struct irq_data *data);
  29
  30 /* The arch hook for getting things started */
  31 int arch_setup_ht_irq(int idx, int pos, struct pci_dev *dev,
  32                       ht_irq_update_t *update);
  33 void arch_teardown_ht_irq(unsigned int irq);
  34
  35 /* For drivers of buggy hardware */
  36 int __ht_create_irq(struct pci_dev *dev, int idx, ht_irq_update_t *update);
  37
  38 #endif /* LINUX_HTIRQ_H */