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1 | /* |
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 |
4 | * for more details. |
5 | * |
6 | * Copyright (c) 2005 Stanislaw Skowronek <skylark@linux-mips.org> |
7 | */ |
8 | |
9 | #ifndef _LINUX_IOC3_H |
10 | #define _LINUX_IOC3_H |
11 | |
12 | #include <asm/sn/ioc3.h> |
13 | |
14 | #define IOC3_MAX_SUBMODULES 32 |
15 | |
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 |
23 | |
24 | /* One of these per IOC3 */ |
25 | struct ioc3_driver_data { |
26 | struct list_head list; |
27 | int id; /* IOC3 sequence number */ |
28 | /* PCI mapping */ |
29 | unsigned long pma; /* physical address */ |
30 | struct ioc3 __iomem *vma; /* pointer to registers */ |
31 | struct pci_dev *pdev; /* PCI device */ |
32 | /* IRQ stuff */ |
33 | int dual_irq; /* set if separate IRQs are used */ |
34 | int irq_io, irq_eth; /* IRQ numbers */ |
35 | /* GPIO magic */ |
36 | spinlock_t gpio_lock; |
37 | unsigned int gpdr_shadow; |
38 | /* NIC identifiers */ |
39 | char nic_part[32]; |
40 | char nic_serial[16]; |
41 | char nic_mac[6]; |
42 | /* submodule set */ |
43 | int class; |
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 |
50 | * along with sio_ir. |
51 | */ |
52 | spinlock_t ir_lock; /* SIO_IE[SC] mod lock */ |
53 | }; |
54 | |
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 */ |
63 | /* IRQ stuff */ |
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 */ |
69 | }; |
70 | |
71 | /********************************** |
72 | * Functions needed by submodules * |
73 | **********************************/ |
74 | |
75 | #define IOC3_W_IES 0 |
76 | #define IOC3_W_IEC 1 |
77 | |
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); |
92 | |
93 | #endif |
94 |
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