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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 Silicon Graphics, Inc. All Rights Reserved. | |
7 | */ | |
8 | ||
9 | #ifndef _LINUX_IOC4_H | |
10 | #define _LINUX_IOC4_H | |
11 | ||
12 | #include <linux/interrupt.h> | |
13 | ||
14 | /*********************************** | |
15 | * Structures needed by subdrivers * | |
16 | ***********************************/ | |
17 | ||
18 | /* This structure fully describes the IOC4 miscellaneous registers which | |
19 | * appear at bar[0]+0x00000 through bar[0]+0x0005c. The corresponding | |
20 | * PCI resource is managed by the main IOC4 driver because it contains | |
21 | * registers of interest to many different IOC4 subdrivers. | |
22 | */ | |
23 | struct ioc4_misc_regs { | |
24 | /* Miscellaneous IOC4 registers */ | |
25 | union ioc4_pci_err_addr_l { | |
26 | uint32_t raw; | |
27 | struct { | |
28 | uint32_t valid:1; /* Address captured */ | |
29 | uint32_t master_id:4; /* Unit causing error | |
30 | * 0/1: Serial port 0 TX/RX | |
31 | * 2/3: Serial port 1 TX/RX | |
32 | * 4/5: Serial port 2 TX/RX | |
33 | * 6/7: Serial port 3 TX/RX | |
34 | * 8: ATA/ATAPI | |
35 | * 9-15: Undefined | |
36 | */ | |
37 | uint32_t mul_err:1; /* Multiple errors occurred */ | |
38 | uint32_t addr:26; /* Bits 31-6 of error addr */ | |
39 | } fields; | |
40 | } pci_err_addr_l; | |
41 | uint32_t pci_err_addr_h; /* Bits 63-32 of error addr */ | |
42 | union ioc4_sio_int { | |
43 | uint32_t raw; | |
44 | struct { | |
45 | uint8_t tx_mt:1; /* TX ring buffer empty */ | |
46 | uint8_t rx_full:1; /* RX ring buffer full */ | |
47 | uint8_t rx_high:1; /* RX high-water exceeded */ | |
48 | uint8_t rx_timer:1; /* RX timer has triggered */ | |
49 | uint8_t delta_dcd:1; /* DELTA_DCD seen */ | |
50 | uint8_t delta_cts:1; /* DELTA_CTS seen */ | |
51 | uint8_t intr_pass:1; /* Interrupt pass-through */ | |
52 | uint8_t tx_explicit:1; /* TX, MCW, or delay complete */ | |
53 | } fields[4]; | |
54 | } sio_ir; /* Serial interrupt state */ | |
55 | union ioc4_other_int { | |
56 | uint32_t raw; | |
57 | struct { | |
58 | uint32_t ata_int:1; /* ATA port passthru */ | |
59 | uint32_t ata_memerr:1; /* ATA halted by mem error */ | |
60 | uint32_t memerr:4; /* Serial halted by mem err */ | |
61 | uint32_t kbd_int:1; /* kbd/mouse intr asserted */ | |
62 | uint32_t reserved:16; /* zero */ | |
63 | uint32_t rt_int:1; /* INT_OUT section latch */ | |
64 | uint32_t gen_int:8; /* Intr. from generic pins */ | |
65 | } fields; | |
66 | } other_ir; /* Other interrupt state */ | |
67 | union ioc4_sio_int sio_ies; /* Serial interrupt enable set */ | |
68 | union ioc4_other_int other_ies; /* Other interrupt enable set */ | |
69 | union ioc4_sio_int sio_iec; /* Serial interrupt enable clear */ | |
70 | union ioc4_other_int other_iec; /* Other interrupt enable clear */ | |
71 | union ioc4_sio_cr { | |
72 | uint32_t raw; | |
73 | struct { | |
74 | uint32_t cmd_pulse:4; /* Bytebus strobe width */ | |
75 | uint32_t arb_diag:3; /* PCI bus requester */ | |
76 | uint32_t sio_diag_idle:1; /* Active ser req? */ | |
77 | uint32_t ata_diag_idle:1; /* Active ATA req? */ | |
78 | uint32_t ata_diag_active:1; /* ATA req is winner */ | |
79 | uint32_t reserved:22; /* zero */ | |
80 | } fields; | |
81 | } sio_cr; | |
82 | uint32_t unused1; | |
83 | union ioc4_int_out { | |
84 | uint32_t raw; | |
85 | struct { | |
86 | uint32_t count:16; /* Period control */ | |
87 | uint32_t mode:3; /* Output signal shape */ | |
88 | uint32_t reserved:11; /* zero */ | |
89 | uint32_t diag:1; /* Timebase control */ | |
90 | uint32_t int_out:1; /* Current value */ | |
91 | } fields; | |
92 | } int_out; /* External interrupt output control */ | |
93 | uint32_t unused2; | |
94 | union ioc4_gpcr { | |
95 | uint32_t raw; | |
96 | struct { | |
97 | uint32_t dir:8; /* Pin direction */ | |
98 | uint32_t edge:8; /* Edge/level mode */ | |
99 | uint32_t reserved1:4; /* zero */ | |
100 | uint32_t int_out_en:1; /* INT_OUT enable */ | |
101 | uint32_t reserved2:11; /* zero */ | |
102 | } fields; | |
103 | } gpcr_s; /* Generic PIO control set */ | |
104 | union ioc4_gpcr gpcr_c; /* Generic PIO control clear */ | |
105 | union ioc4_gpdr { | |
106 | uint32_t raw; | |
107 | struct { | |
108 | uint32_t gen_pin:8; /* State of pins */ | |
109 | uint32_t reserved:24; | |
110 | } fields; | |
111 | } gpdr; /* Generic PIO data */ | |
112 | uint32_t unused3; | |
113 | union ioc4_gppr { | |
114 | uint32_t raw; | |
115 | struct { | |
116 | uint32_t gen_pin:1; /* Single pin state */ | |
117 | uint32_t reserved:31; | |
118 | } fields; | |
119 | } gppr[8]; /* Generic PIO pins */ | |
120 | }; | |
121 | ||
122 | /* One of these per IOC4 | |
123 | * | |
124 | * The idd_serial_data field is present here, even though it's used | |
125 | * solely by the serial subdriver, because the main IOC4 module | |
126 | * properly owns pci_{get,set}_drvdata functionality. This field | |
127 | * allows that subdriver to stash its own drvdata somewhere. | |
128 | */ | |
129 | struct ioc4_driver_data { | |
130 | struct list_head idd_list; | |
131 | unsigned long idd_bar0; | |
132 | struct pci_dev *idd_pdev; | |
133 | const struct pci_device_id *idd_pci_id; | |
134 | struct __iomem ioc4_misc_regs *idd_misc_regs; | |
135 | void *idd_serial_data; | |
136 | }; | |
137 | ||
138 | /* One per submodule */ | |
139 | struct ioc4_submodule { | |
140 | struct list_head is_list; | |
141 | char *is_name; | |
142 | struct module *is_owner; | |
143 | int (*is_probe) (struct ioc4_driver_data *); | |
144 | int (*is_remove) (struct ioc4_driver_data *); | |
145 | }; | |
146 | ||
147 | #define IOC4_NUM_CARDS 8 /* max cards per partition */ | |
148 | ||
149 | /********************************** | |
150 | * Functions needed by submodules * | |
151 | **********************************/ | |
152 | ||
153 | extern int ioc4_register_submodule(struct ioc4_submodule *); | |
154 | extern void ioc4_unregister_submodule(struct ioc4_submodule *); | |
155 | ||
156 | #endif /* _LINUX_IOC4_H */ |