LXR linux/include/linux/htirq.h

   1#ifndef LINUX_HTIRQ_H
   2#define LINUX_HTIRQ_H
   3
   4struct pci_dev;
   5struct irq_data;
   6
   7struct 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
  12typedef void (ht_irq_update_t)(struct pci_dev *dev, int irq,
  13                               struct ht_irq_msg *msg);
  14
  15struct 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.. */
  25void fetch_ht_irq_msg(unsigned int irq, struct ht_irq_msg *msg);
  26void write_ht_irq_msg(unsigned int irq, struct ht_irq_msg *msg);
  27void mask_ht_irq(struct irq_data *data);
  28void unmask_ht_irq(struct irq_data *data);
  29
  30/* The arch hook for getting things started */
  31int arch_setup_ht_irq(int idx, int pos, struct pci_dev *dev,
  32                      ht_irq_update_t *update);
  33void arch_teardown_ht_irq(unsigned int irq);
  34
  35/* For drivers of buggy hardware */
  36int __ht_create_irq(struct pci_dev *dev, int idx, ht_irq_update_t *update);
  37
  38#endif /* LINUX_HTIRQ_H */
  39