| #ifndef LINUX_HTIRQ_H |
| #define LINUX_HTIRQ_H |
| |
| struct pci_dev; |
| struct irq_data; |
| |
| struct ht_irq_msg { |
| u32 address_lo; /* low 32 bits of the ht irq message */ |
| u32 address_hi; /* high 32 bits of the it irq message */ |
| }; |
| |
| typedef void (ht_irq_update_t)(struct pci_dev *dev, int irq, |
| struct ht_irq_msg *msg); |
| |
| struct ht_irq_cfg { |
| struct pci_dev *dev; |
| /* Update callback used to cope with buggy hardware */ |
| ht_irq_update_t *update; |
| unsigned pos; |
| unsigned idx; |
| struct ht_irq_msg msg; |
| }; |
| |
| /* Helper functions.. */ |
| void fetch_ht_irq_msg(unsigned int irq, struct ht_irq_msg *msg); |
| void write_ht_irq_msg(unsigned int irq, struct ht_irq_msg *msg); |
| void mask_ht_irq(struct irq_data *data); |
| void unmask_ht_irq(struct irq_data *data); |
| |
| /* The arch hook for getting things started */ |
| int arch_setup_ht_irq(int idx, int pos, struct pci_dev *dev, |
| ht_irq_update_t *update); |
| void arch_teardown_ht_irq(unsigned int irq); |
| |
| /* For drivers of buggy hardware */ |
| int __ht_create_irq(struct pci_dev *dev, int idx, ht_irq_update_t *update); |
| |
| #endif /* LINUX_HTIRQ_H */ |