Edit File: ioc4.h
/* * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. * * Copyright (c) 2005 Silicon Graphics, Inc. All Rights Reserved. */ #ifndef _LINUX_IOC4_H #define _LINUX_IOC4_H #include <linux/interrupt.h> /*************** * Definitions * ***************/ /* Miscellaneous values inherent to hardware */ #define IOC4_EXTINT_COUNT_DIVISOR 520 /* PCI clocks per COUNT tick */ /*********************************** * Structures needed by subdrivers * ***********************************/ /* This structure fully describes the IOC4 miscellaneous registers which * appear at bar[0]+0x00000 through bar[0]+0x0005c. The corresponding * PCI resource is managed by the main IOC4 driver because it contains * registers of interest to many different IOC4 subdrivers. */ struct ioc4_misc_regs { /* Miscellaneous IOC4 registers */ union ioc4_pci_err_addr_l { uint32_t raw; struct { uint32_t valid:1; /* Address captured */ uint32_t master_id:4; /* Unit causing error * 0/1: Serial port 0 TX/RX * 2/3: Serial port 1 TX/RX * 4/5: Serial port 2 TX/RX * 6/7: Serial port 3 TX/RX * 8: ATA/ATAPI * 9-15: Undefined */ uint32_t mul_err:1; /* Multiple errors occurred */ uint32_t addr:26; /* Bits 31-6 of error addr */ } fields; } pci_err_addr_l; uint32_t pci_err_addr_h; /* Bits 63-32 of error addr */ union ioc4_sio_int { uint32_t raw; struct { uint8_t tx_mt:1; /* TX ring buffer empty */ uint8_t rx_full:1; /* RX ring buffer full */ uint8_t rx_high:1; /* RX high-water exceeded */ uint8_t rx_timer:1; /* RX timer has triggered */ uint8_t delta_dcd:1; /* DELTA_DCD seen */ uint8_t delta_cts:1; /* DELTA_CTS seen */ uint8_t intr_pass:1; /* Interrupt pass-through */ uint8_t tx_explicit:1; /* TX, MCW, or delay complete */ } fields[4]; } sio_ir; /* Serial interrupt state */ union ioc4_other_int { uint32_t raw; struct { uint32_t ata_int:1; /* ATA port passthru */ uint32_t ata_memerr:1; /* ATA halted by mem error */ uint32_t memerr:4; /* Serial halted by mem err */ uint32_t kbd_int:1; /* kbd/mouse intr asserted */ uint32_t reserved:16; /* zero */ uint32_t rt_int:1; /* INT_OUT section latch */ uint32_t gen_int:8; /* Intr. from generic pins */ } fields; } other_ir; /* Other interrupt state */ union ioc4_sio_int sio_ies; /* Serial interrupt enable set */ union ioc4_other_int other_ies; /* Other interrupt enable set */ union ioc4_sio_int sio_iec; /* Serial interrupt enable clear */ union ioc4_other_int other_iec; /* Other interrupt enable clear */ union ioc4_sio_cr { uint32_t raw; struct { uint32_t cmd_pulse:4; /* Bytebus strobe width */ uint32_t arb_diag:3; /* PCI bus requester */ uint32_t sio_diag_idle:1; /* Active ser req? */ uint32_t ata_diag_idle:1; /* Active ATA req? */ uint32_t ata_diag_active:1; /* ATA req is winner */ uint32_t reserved:22; /* zero */ } fields; } sio_cr; uint32_t unused1; union ioc4_int_out { uint32_t raw; struct { uint32_t count:16; /* Period control */ uint32_t mode:3; /* Output signal shape */ uint32_t reserved:11; /* zero */ uint32_t diag:1; /* Timebase control */ uint32_t int_out:1; /* Current value */ } fields; } int_out; /* External interrupt output control */ uint32_t unused2; union ioc4_gpcr { uint32_t raw; struct { uint32_t dir:8; /* Pin direction */ uint32_t edge:8; /* Edge/level mode */ uint32_t reserved1:4; /* zero */ uint32_t int_out_en:1; /* INT_OUT enable */ uint32_t reserved2:11; /* zero */ } fields; } gpcr_s; /* Generic PIO control set */ union ioc4_gpcr gpcr_c; /* Generic PIO control clear */ union ioc4_gpdr { uint32_t raw; struct { uint32_t gen_pin:8; /* State of pins */ uint32_t reserved:24; } fields; } gpdr; /* Generic PIO data */ uint32_t unused3; union ioc4_gppr { uint32_t raw; struct { uint32_t gen_pin:1; /* Single pin state */ uint32_t reserved:31; } fields; } gppr[8]; /* Generic PIO pins */ }; /* Masks for GPCR DIR pins */ #define IOC4_GPCR_DIR_0 0x01 /* External interrupt output */ #define IOC4_GPCR_DIR_1 0x02 /* External interrupt input */ #define IOC4_GPCR_DIR_2 0x04 #define IOC4_GPCR_DIR_3 0x08 /* Keyboard/mouse presence */ #define IOC4_GPCR_DIR_4 0x10 /* Ser. port 0 xcvr select (0=232, 1=422) */ #define IOC4_GPCR_DIR_5 0x20 /* Ser. port 1 xcvr select (0=232, 1=422) */ #define IOC4_GPCR_DIR_6 0x40 /* Ser. port 2 xcvr select (0=232, 1=422) */ #define IOC4_GPCR_DIR_7 0x80 /* Ser. port 3 xcvr select (0=232, 1=422) */ /* Masks for GPCR EDGE pins */ #define IOC4_GPCR_EDGE_0 0x01 #define IOC4_GPCR_EDGE_1 0x02 /* External interrupt input */ #define IOC4_GPCR_EDGE_2 0x04 #define IOC4_GPCR_EDGE_3 0x08 #define IOC4_GPCR_EDGE_4 0x10 #define IOC4_GPCR_EDGE_5 0x20 #define IOC4_GPCR_EDGE_6 0x40 #define IOC4_GPCR_EDGE_7 0x80 #define IOC4_VARIANT_IO9 0x0900 #define IOC4_VARIANT_PCI_RT 0x0901 #define IOC4_VARIANT_IO10 0x1000 /* One of these per IOC4 */ struct ioc4_driver_data { struct list_head idd_list; unsigned long idd_bar0; struct pci_dev *idd_pdev; const struct pci_device_id *idd_pci_id; struct ioc4_misc_regs __iomem *idd_misc_regs; unsigned long count_period; void *idd_serial_data; unsigned int idd_variant; }; /* One per submodule */ struct ioc4_submodule { struct list_head is_list; char *is_name; struct module *is_owner; int (*is_probe) (struct ioc4_driver_data *); int (*is_remove) (struct ioc4_driver_data *); }; #define IOC4_NUM_CARDS 8 /* max cards per partition */ /********************************** * Functions needed by submodules * **********************************/ extern int ioc4_register_submodule(struct ioc4_submodule *); extern void ioc4_unregister_submodule(struct ioc4_submodule *); #endif /* _LINUX_IOC4_H */