1 /* $NetBSD: ifpgavar.h,v 1.3 2003/09/06 11:31:22 rearnsha Exp $ */ 2 3 /* 4 * Copyright (c) 2001 ARM Ltd 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the company may not be used to endorse or promote 16 * products derived from this software without specific prior written 17 * permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 20 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 21 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 23 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 25 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #ifndef _IFPGAVAR_H_ 33 #define _IFPGAVAR_H_ 34 35 #include <machine/bus.h> 36 37 /* We statically map the UARTS at boot so that we can access the console 38 before we've probed for the IFPGA. */ 39 #define UART0_BOOT_BASE 0xfde00000 40 #define UART1_BOOT_BASE 0xfdf00000 41 42 #define IFPGA_UART0 0x06000000 /* Uart 0 */ 43 #define IFPGA_UART1 0x07000000 /* Uart 1 */ 44 45 typedef paddr_t ifpga_addr_t; 46 47 struct ifpga_softc { 48 struct device sc_dev; /* Device node */ 49 bus_space_tag_t sc_iot; /* Bus tag */ 50 bus_space_handle_t sc_sc_ioh; /* System Controller handle */ 51 bus_space_handle_t sc_cm_ioh; /* Core Module handle */ 52 bus_space_handle_t sc_tmr_ioh; /* Timers handle */ 53 bus_space_handle_t sc_irq_ioh; /* IRQ controller handle */ 54 55 /* Clock variables. */ 56 int sc_statclock_count; 57 int sc_clock_count; 58 int sc_clock_ticks_per_256us; 59 void * sc_clockintr; 60 void * sc_statclockintr; 61 }; 62 63 #define cf_iobase cf_loc[IFPGACF_OFFSET] 64 #define cf_irq cf_loc[IFPGACF_IRQ] 65 66 #define IRQUNK IFPGACF_IRQ_DEFAULT 67 68 struct ifpga_attach_args { 69 char *ifa_name; /* Device name */ 70 bus_space_tag_t ifa_iot; /* Bus space tag for io */ 71 bus_space_handle_t ifa_sc_ioh; /* System controller handle */ 72 73 ifpga_addr_t ifa_addr; /* Address of device. */ 74 int ifa_irq; /* IRQ to use. */ 75 /* 76 * Other data extracted from the system should go here. Eg UART clock 77 * rates. 78 */ 79 }; 80 81 /* There are roughly 32 interrupt sources. */ 82 #define NIRQ 32 83 struct intrhand { 84 TAILQ_ENTRY(intrhand) ih_list; /* link on intrq list */ 85 int (*ih_func)(void *); /* handler */ 86 void *ih_arg; /* arg for handler */ 87 int ih_ipl; /* IPL_* */ 88 int ih_irq; /* IRQ number */ 89 }; 90 91 #define IRQNAMESIZE sizeof("tmr 0 hard") 92 93 struct intrq { 94 TAILQ_HEAD(, intrhand) iq_list; /* handler list */ 95 struct evcnt iq_ev; /* event counter */ 96 int iq_mask; /* IRQs to mask while handling */ 97 int iq_levels; /* IPL_*'s this IRQ has */ 98 int iq_ist; /* share type */ 99 }; 100 101 102 void ifpga_intr_init(void); 103 void ifpga_intr_postinit(void); 104 void *ifpga_intr_establish(int, int, int (*)(void *), void *); 105 void ifpga_intr_disestablish(void *); 106 107 void ifpga_create_io_bs_tag(struct bus_space *, void *); 108 void ifpga_create_mem_bs_tag(struct bus_space *, void *); 109 110 void ifpga_reset(void); 111 112 #endif /* _IFPGAVAR_H */ 113