[linux-2.6-block.git] / include / linux / htirq.h

/* SPDX-License-Identifier: GPL-2.0 */
#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 */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
95d77884 EB	2	#ifndef LINUX_HTIRQ_H
	3	#define LINUX_HTIRQ_H
	4
49e07d8f JL	5	struct pci_dev;
	6	struct irq_data;
	7
ec68307c EB	8	struct ht_irq_msg {
	9	u32 address_lo; /* low 32 bits of the ht irq message */
	10	u32 address_hi; /* high 32 bits of the it irq message */
	11	};
	12
49e07d8f JL	13	typedef void (ht_irq_update_t)(struct pci_dev *dev, int irq,
	14	struct ht_irq_msg *msg);
	15
	16	struct ht_irq_cfg {
	17	struct pci_dev *dev;
	18	/* Update callback used to cope with buggy hardware */
	19	ht_irq_update_t *update;
	20	unsigned pos;
	21	unsigned idx;
	22	struct ht_irq_msg msg;
	23	};
	24
95d77884	25	/* Helper functions.. */
ec68307c EB	26	void fetch_ht_irq_msg(unsigned int irq, struct ht_irq_msg *msg);
ec68307c EB	27	void write_ht_irq_msg(unsigned int irq, struct ht_irq_msg *msg);
e9f7ac66 TG	28	void mask_ht_irq(struct irq_data *data);
e9f7ac66 TG	29	void unmask_ht_irq(struct irq_data *data);
95d77884 EB	30
95d77884 EB	31	/* The arch hook for getting things started */
49e07d8f JL	32	int arch_setup_ht_irq(int idx, int pos, struct pci_dev *dev,
	33	ht_irq_update_t *update);
	34	void arch_teardown_ht_irq(unsigned int irq);
95d77884	35
43539c38	36	/* For drivers of buggy hardware */
43539c38 EB	37	int __ht_create_irq(struct pci_dev dev, int idx, ht_irq_update_t update);
43539c38 EB	38
95d77884	39	#endif /* LINUX_HTIRQ_H */