2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
6 * Copyright (c) 2005 Stanislaw Skowronek <skylark@linux-mips.org>
12 #include <asm/sn/ioc3.h>
14 #define IOC3_MAX_SUBMODULES 32
16 #define IOC3_CLASS_NONE 0
17 #define IOC3_CLASS_BASE_IP27 1
18 #define IOC3_CLASS_BASE_IP30 2
19 #define IOC3_CLASS_MENET_123 3
20 #define IOC3_CLASS_MENET_4 4
21 #define IOC3_CLASS_CADDUO 5
22 #define IOC3_CLASS_SERIAL 6
24 /* One of these per IOC3 */
25 struct ioc3_driver_data
{
26 struct list_head list
;
27 int id
; /* IOC3 sequence number */
29 unsigned long pma
; /* physical address */
30 struct ioc3 __iomem
*vma
; /* pointer to registers */
31 struct pci_dev
*pdev
; /* PCI device */
33 int dual_irq
; /* set if separate IRQs are used */
34 int irq_io
, irq_eth
; /* IRQ numbers */
37 unsigned int gpdr_shadow
;
44 void *data
[IOC3_MAX_SUBMODULES
]; /* for submodule use */
45 int active
[IOC3_MAX_SUBMODULES
]; /* set if probe succeeds */
46 /* is_ir_lock must be held while
47 * modifying sio_ie values, so
48 * we can be sure that sio_ie is
49 * not changing when we read it
52 spinlock_t ir_lock
; /* SIO_IE[SC] mod lock */
55 /* One per submodule */
56 struct ioc3_submodule
{
57 char *name
; /* descriptive submodule name */
58 struct module
*owner
; /* owning kernel module */
59 int ethernet
; /* set for ethernet drivers */
60 int (*probe
) (struct ioc3_submodule
*, struct ioc3_driver_data
*);
61 int (*remove
) (struct ioc3_submodule
*, struct ioc3_driver_data
*);
62 int id
; /* assigned by IOC3, index for the "data" array */
64 unsigned int irq_mask
; /* IOC3 IRQ mask, leave clear for Ethernet */
65 int reset_mask
; /* non-zero if you want the ioc3.c module to reset interrupts */
66 int (*intr
) (struct ioc3_submodule
*, struct ioc3_driver_data
*, unsigned int);
67 /* private submodule data */
68 void *data
; /* assigned by submodule */
71 /**********************************
72 * Functions needed by submodules *
73 **********************************/
78 /* registers a submodule for all existing and future IOC3 chips */
79 extern int ioc3_register_submodule(struct ioc3_submodule
*);
80 /* unregisters a submodule */
81 extern void ioc3_unregister_submodule(struct ioc3_submodule
*);
82 /* enables IRQs indicated by irq_mask for a specified IOC3 chip */
83 extern void ioc3_enable(struct ioc3_submodule
*, struct ioc3_driver_data
*, unsigned int);
84 /* ackowledges specified IRQs */
85 extern void ioc3_ack(struct ioc3_submodule
*, struct ioc3_driver_data
*, unsigned int);
86 /* disables IRQs indicated by irq_mask for a specified IOC3 chip */
87 extern void ioc3_disable(struct ioc3_submodule
*, struct ioc3_driver_data
*, unsigned int);
88 /* atomically sets GPCR bits */
89 extern void ioc3_gpcr_set(struct ioc3_driver_data
*, unsigned int);
90 /* general ireg writer */
91 extern void ioc3_write_ireg(struct ioc3_driver_data
*idd
, uint32_t value
, int reg
);
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