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 Silicon Graphics, Inc. All Rights Reserved.
12 #include <linux/interrupt.h>
14 /***********************************
15 * Structures needed by subdrivers *
16 ***********************************/
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.
23 struct ioc4_misc_regs {
24 /* Miscellaneous IOC4 registers */
25 union ioc4_pci_err_addr_l {
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
37 uint32_t mul_err:1; /* Multiple errors occurred */
38 uint32_t addr:26; /* Bits 31-6 of error addr */
41 uint32_t pci_err_addr_h; /* Bits 63-32 of error addr */
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 */
54 } sio_ir; /* Serial interrupt state */
55 union ioc4_other_int {
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 */
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 */
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 */
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 */
92 } int_out; /* External interrupt output control */
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 */
103 } gpcr_s; /* Generic PIO control set */
104 union ioc4_gpcr gpcr_c; /* Generic PIO control clear */
108 uint32_t gen_pin:8; /* State of pins */
109 uint32_t reserved:24;
111 } gpdr; /* Generic PIO data */
116 uint32_t gen_pin:1; /* Single pin state */
117 uint32_t reserved:31;
119 } gppr[8]; /* Generic PIO pins */
122 /* One of these per IOC4
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.
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;
138 /* One per submodule */
139 struct ioc4_submodule {
140 struct list_head is_list;
142 struct module *is_owner;
143 int (*is_probe) (struct ioc4_driver_data *);
144 int (*is_remove) (struct ioc4_driver_data *);
147 #define IOC4_NUM_CARDS 8 /* max cards per partition */
149 /**********************************
150 * Functions needed by submodules *
151 **********************************/
153 extern int ioc4_register_submodule(struct ioc4_submodule *);
154 extern void ioc4_unregister_submodule(struct ioc4_submodule *);
156 #endif /* _LINUX_IOC4_H */