94 lines
3.2 KiB
C
94 lines
3.2 KiB
C
/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (c) 2005 Stanislaw Skowronek <skylark@linux-mips.org>
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*/
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#ifndef _LINUX_IOC3_H
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#define _LINUX_IOC3_H
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#include <asm/sn/ioc3.h>
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#define IOC3_MAX_SUBMODULES 32
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#define IOC3_CLASS_NONE 0
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#define IOC3_CLASS_BASE_IP27 1
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#define IOC3_CLASS_BASE_IP30 2
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#define IOC3_CLASS_MENET_123 3
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#define IOC3_CLASS_MENET_4 4
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#define IOC3_CLASS_CADDUO 5
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#define IOC3_CLASS_SERIAL 6
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/* One of these per IOC3 */
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struct ioc3_driver_data {
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struct list_head list;
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int id; /* IOC3 sequence number */
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/* PCI mapping */
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unsigned long pma; /* physical address */
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struct __iomem ioc3 *vma; /* pointer to registers */
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struct pci_dev *pdev; /* PCI device */
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/* IRQ stuff */
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int dual_irq; /* set if separate IRQs are used */
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int irq_io, irq_eth; /* IRQ numbers */
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/* GPIO magic */
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spinlock_t gpio_lock;
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unsigned int gpdr_shadow;
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/* NIC identifiers */
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char nic_part[32];
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char nic_serial[16];
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char nic_mac[6];
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/* submodule set */
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int class;
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void *data[IOC3_MAX_SUBMODULES]; /* for submodule use */
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int active[IOC3_MAX_SUBMODULES]; /* set if probe succeeds */
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/* is_ir_lock must be held while
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* modifying sio_ie values, so
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* we can be sure that sio_ie is
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* not changing when we read it
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* along with sio_ir.
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*/
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spinlock_t ir_lock; /* SIO_IE[SC] mod lock */
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};
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/* One per submodule */
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struct ioc3_submodule {
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char *name; /* descriptive submodule name */
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struct module *owner; /* owning kernel module */
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int ethernet; /* set for ethernet drivers */
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int (*probe) (struct ioc3_submodule *, struct ioc3_driver_data *);
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int (*remove) (struct ioc3_submodule *, struct ioc3_driver_data *);
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int id; /* assigned by IOC3, index for the "data" array */
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/* IRQ stuff */
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unsigned int irq_mask; /* IOC3 IRQ mask, leave clear for Ethernet */
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int reset_mask; /* non-zero if you want the ioc3.c module to reset interrupts */
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int (*intr) (struct ioc3_submodule *, struct ioc3_driver_data *, unsigned int, struct pt_regs *);
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/* private submodule data */
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void *data; /* assigned by submodule */
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};
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/**********************************
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* Functions needed by submodules *
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**********************************/
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#define IOC3_W_IES 0
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#define IOC3_W_IEC 1
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/* registers a submodule for all existing and future IOC3 chips */
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extern int ioc3_register_submodule(struct ioc3_submodule *);
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/* unregisters a submodule */
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extern void ioc3_unregister_submodule(struct ioc3_submodule *);
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/* enables IRQs indicated by irq_mask for a specified IOC3 chip */
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extern void ioc3_enable(struct ioc3_submodule *, struct ioc3_driver_data *, unsigned int);
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/* ackowledges specified IRQs */
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extern void ioc3_ack(struct ioc3_submodule *, struct ioc3_driver_data *, unsigned int);
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/* disables IRQs indicated by irq_mask for a specified IOC3 chip */
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extern void ioc3_disable(struct ioc3_submodule *, struct ioc3_driver_data *, unsigned int);
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/* atomically sets GPCR bits */
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extern void ioc3_gpcr_set(struct ioc3_driver_data *, unsigned int);
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/* general ireg writer */
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extern void ioc3_write_ireg(struct ioc3_driver_data *idd, uint32_t value, int reg);
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#endif
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