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ixp425var.h revision 1.5 
      1 /*	$NetBSD: ixp425var.h,v 1.5 2003/10/08 14:55:04 scw Exp $ */
      2 
      3 /*
      4  * Copyright (c) 2003
      5  *	Ichiro FUKUHARA <ichiro (at) ichiro.org>.
      6  * All rights reserved.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  * 3. All advertising materials mentioning features or use of this software
     17  *    must display the following acknowledgement:
     18  *	This product includes software developed by Ichiro FUKUHARA.
     19  * 4. The name of the company nor the name of the author may be used to
     20  *    endorse or promote products derived from this software without specific
     21  *    prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY ICHIRO FUKUHARA ``AS IS'' AND ANY EXPRESS OR
     24  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     25  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     26  * IN NO EVENT SHALL ICHIRO FUKUHARA OR THE VOICES IN HIS HEAD BE LIABLE FOR
     27  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  */
     35 
     36 #ifndef _IXP425VAR_H_
     37 #define _IXP425VAR_H_
     38 
     39 #include <sys/conf.h>
     40 #include <sys/device.h>
     41 #include <sys/queue.h>
     42 
     43 #include <machine/bus.h>
     44 
     45 #include <dev/pci/pcivar.h>
     46 
     47 #define	PCI_CSR_WRITE_4(sc, reg, data)	\
     48 	bus_space_write_4(sc->sc_iot, sc->sc_pci_ioh,	\
     49 		reg, data)
     50 
     51 #define	PCI_CSR_READ_4(sc, reg)	\
     52 	bus_space_read_4(sc->sc_iot, sc->sc_pci_ioh, reg)
     53 
     54 #define	GPIO_CONF_WRITE_4(sc, reg, data)	\
     55 	bus_space_write_4(sc->sc_iot, sc->sc_gpio_ioh,  \
     56 		reg, data)
     57 
     58 #define	GPIO_CONF_READ_4(sc, reg) \
     59 	bus_space_read_4(sc->sc_iot, sc->sc_gpio_ioh, reg)
     60 
     61 #define PCI_CONF_LOCK(s)	(s) = disable_interrupts(I32_bit)
     62 #define PCI_CONF_UNLOCK(s)	restore_interrupts((s))
     63 
     64 struct ixp425_softc {
     65 	struct device sc_dev;
     66 	bus_space_tag_t sc_iot;
     67 	bus_space_handle_t sc_ioh;		/* IRQ handle */
     68 
     69 	u_int32_t sc_intrmask;
     70 
     71 	/* Handles for the various subregions. */
     72 	bus_space_handle_t sc_pci_ioh;		/* PCI mem handler */
     73 	bus_space_handle_t sc_gpio_ioh;	/* GPIOs handler */
     74 
     75 	/* Bus space, DMA, and PCI tags for the PCI bus */
     76 	struct bus_space sc_pci_iot;
     77 	struct bus_space sc_pci_memt;
     78         struct arm32_bus_dma_tag ia_pci_dmat;
     79         struct arm32_pci_chipset ia_pci_chipset;
     80 	vaddr_t sc_pci_va;
     81 
     82 	/* DMA window info for PCI DMA. */
     83 	struct arm32_dma_range ia_pci_dma_range;
     84 
     85 	/* GPIO configuration */
     86 	u_int32_t sc_gpio_out;
     87 	u_int32_t sc_gpio_oe;
     88 	u_int32_t sc_gpio_intr1;
     89 	u_int32_t sc_gpio_intr2;
     90 };
     91 
     92 /*
     93  * There are roughly 32 interrupt sources.
     94  */
     95 #define	NIRQ		32
     96 
     97 struct intrhand {
     98 	TAILQ_ENTRY(intrhand) ih_list;	/* link on intrq list */
     99 	int (*ih_func)(void *);		/* interrupt handler */
    100 	void *ih_arg;			/* arg for handler */
    101 	int ih_ipl;			/* IPL_* */
    102 	int ih_irq;			/* IRQ number */
    103 };
    104 
    105 #define	IRQNAMESIZE	sizeof("ixp425 irq xx")
    106 
    107 struct intrq {
    108 	TAILQ_HEAD(, intrhand) iq_list;	/* handler list */
    109 	struct evcnt iq_ev;		/* event counter */
    110 	u_int32_t iq_mask;		/* IRQs to mask while handling */
    111 	u_int32_t iq_pci_mask;		/* PCI IRQs to mask while handling */
    112 	u_int32_t iq_levels;		/* IPL_*'s this IRQ has */
    113 	char iq_name[IRQNAMESIZE];	/* interrupt name */
    114 	int iq_ist;			/* share type */
    115 };
    116 
    117 struct pmap_ent {
    118 	const char*	msg;
    119 	vaddr_t		va;
    120 	paddr_t		pa;
    121 	vsize_t		sz;
    122 	int		prot;
    123 	int		cache;
    124 };
    125 
    126 extern struct ixp425_softc *ixp425_softc;
    127 
    128 extern struct bus_space ixpsip_bs_tag;
    129 extern struct bus_space ixp425_bs_tag;
    130 extern struct bus_space ixp425_a4x_bs_tag;
    131 
    132 void	ixp425_bs_init(bus_space_tag_t, void *);
    133 void	ixp425_md_pci_init(struct ixp425_softc *);
    134 void	ixp425_md_pci_conf_interrupt(pci_chipset_tag_t, int, int, int,
    135 	    int, int *);
    136 void	ixp425_pci_init(struct ixp425_softc *);
    137 void	ixp425_pci_dma_init(struct ixp425_softc *);
    138 void	ixp425_io_bs_init(bus_space_tag_t, void *);
    139 void	ixp425_mem_bs_init(bus_space_tag_t, void *);
    140 
    141 void	ixp425_pci_conf_reg_write(struct ixp425_softc *, uint32_t, uint32_t);
    142 uint32_t ixp425_pci_conf_reg_read(struct ixp425_softc *, uint32_t);
    143 
    144 void	ixp425_attach(struct ixp425_softc *);
    145 void	ixp425_icu_init(void);
    146 void	ixp425_clk_bootstrap(bus_space_tag_t);
    147 void	ixp425_intr_init(void);
    148 void	*ixp425_intr_establish(int, int, int (*)(void *), void *);
    149 void    ixp425_intr_disestablish(void *);
    150 
    151 
    152 #endif /* _IXP425VAR_H_ */
    153