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119 lines
3.0 KiB
C
119 lines
3.0 KiB
C
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/*
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*
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* bcm47xx pcmcia driver
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*
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* Copyright 2004, Broadcom Corporation
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* All Rights Reserved.
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*
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* THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
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* KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
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* SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
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*
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* Based on sa1100.h and include/asm-arm/arch-sa1100/pcmica.h
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* from www.handhelds.org,
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* and au1000_generic.c from oss.sgi.com.
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*
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* $Id$
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*/
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#if !defined(_BCM4710PCMCIA_H)
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#define _BCM4710PCMCIA_H
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#include <pcmcia/cs_types.h>
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#include <pcmcia/ss.h>
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#include <pcmcia/bulkmem.h>
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#include <pcmcia/cistpl.h>
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#include "cs_internal.h"
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/* The 47xx can only support one socket */
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#define BCM47XX_PCMCIA_MAX_SOCK 1
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/* In the bcm947xx gpio's are used for some pcmcia functions */
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#define BCM47XX_PCMCIA_WP 0x01 /* Bit 0 is WP input */
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#define BCM47XX_PCMCIA_STSCHG 0x20 /* Bit 5 is STSCHG input/interrupt */
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#define BCM47XX_PCMCIA_RESET 0x80 /* Bit 7 is RESET */
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#define BCM47XX_PCMCIA_IRQ 2
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/* The socket driver actually works nicely in interrupt-driven form,
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* so the (relatively infrequent) polling is "just to be sure."
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*/
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#define BCM47XX_PCMCIA_POLL_PERIOD (2 * HZ)
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#define BCM47XX_PCMCIA_IO_SPEED (255)
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#define BCM47XX_PCMCIA_MEM_SPEED (300)
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struct pcmcia_state {
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unsigned detect: 1,
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ready: 1,
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bvd1: 1,
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bvd2: 1,
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wrprot: 1,
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vs_3v: 1,
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vs_Xv: 1;
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};
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struct pcmcia_configure {
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unsigned sock: 8,
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vcc: 8,
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vpp: 8,
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output: 1,
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speaker: 1,
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reset: 1;
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};
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struct pcmcia_irq_info {
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unsigned int sock;
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unsigned int irq;
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};
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/* This structure encapsulates per-socket state which we might need to
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* use when responding to a Card Services query of some kind.
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*/
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struct bcm47xx_pcmcia_socket {
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socket_state_t cs_state;
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struct pcmcia_state k_state;
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unsigned int irq;
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void (*handler)(void *, unsigned int);
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void *handler_info;
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pccard_io_map io_map[MAX_IO_WIN];
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pccard_mem_map mem_map[MAX_WIN];
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ioaddr_t virt_io, phys_attr, phys_mem;
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unsigned short speed_io, speed_attr, speed_mem;
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};
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struct pcmcia_init {
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void (*handler)(int irq, void *dev, struct pt_regs *regs);
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};
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struct pcmcia_low_level {
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int (*init)(struct pcmcia_init *);
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int (*shutdown)(void);
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int (*socket_state)(unsigned sock, struct pcmcia_state *);
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int (*get_irq_info)(struct pcmcia_irq_info *);
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int (*configure_socket)(const struct pcmcia_configure *);
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};
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extern struct pcmcia_low_level bcm47xx_pcmcia_ops;
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/* I/O pins replacing memory pins
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* (PCMCIA System Architecture, 2nd ed., by Don Anderson, p.75)
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*
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* These signals change meaning when going from memory-only to
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* memory-or-I/O interface:
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*/
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#define iostschg bvd1
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#define iospkr bvd2
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/*
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* Declaration for implementation specific low_level operations.
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*/
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extern struct pcmcia_low_level bcm4710_pcmcia_ops;
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#endif /* !defined(_BCM4710PCMCIA_H) */
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