package/linux/kernel-source/drivers/pcmcia/bcm4710pcmcia.h

   1 /*
   2  *
   3  * bcm47xx pcmcia driver
   4  *
   5  * Copyright 2004, Broadcom Corporation
   6  * All Rights Reserved.
   7  *
   8  * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
   9  * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
  10  * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
  11  * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
  12  *
  13  * Based on sa1100.h and include/asm-arm/arch-sa1100/pcmica.h
  14  *      from www.handhelds.org,
  15  * and au1000_generic.c from oss.sgi.com.
  16  *
  17  * $Id$
  18  */
  19
  20 #if !defined(_BCM4710PCMCIA_H)
  21 #define _BCM4710PCMCIA_H
  22
  23 #include <pcmcia/cs_types.h>
  24 #include <pcmcia/ss.h>
  25 #include <pcmcia/bulkmem.h>
  26 #include <pcmcia/cistpl.h>
  27 #include "cs_internal.h"
  28
  29
  30 /* The 47xx can only support one socket */
  31 #define BCM47XX_PCMCIA_MAX_SOCK         1
  32
  33 /* In the bcm947xx gpio's are used for some pcmcia functions */
  34 #define BCM47XX_PCMCIA_WP               0x01            /* Bit 0 is WP input */
  35 #define BCM47XX_PCMCIA_STSCHG           0x20            /* Bit 5 is STSCHG input/interrupt */
  36 #define BCM47XX_PCMCIA_RESET            0x80            /* Bit 7 is RESET */
  37
  38 #define BCM47XX_PCMCIA_IRQ              2
  39
  40 /* The socket driver actually works nicely in interrupt-driven form,
  41  * so the (relatively infrequent) polling is "just to be sure."
  42  */
  43 #define BCM47XX_PCMCIA_POLL_PERIOD    (2 * HZ)
  44
  45 #define BCM47XX_PCMCIA_IO_SPEED       (255)
  46 #define BCM47XX_PCMCIA_MEM_SPEED      (300)
  47
  48
  49 struct pcmcia_state {
  50         unsigned detect: 1,
  51                 ready: 1,
  52                 bvd1: 1,
  53                 bvd2: 1,
  54                 wrprot: 1,
  55                 vs_3v: 1,
  56                 vs_Xv: 1;
  57 };
  58
  59
  60 struct pcmcia_configure {
  61         unsigned sock: 8,
  62                 vcc: 8,
  63                 vpp: 8,
  64                 output: 1,
  65                 speaker: 1,
  66                 reset: 1;
  67 };
  68
  69 struct pcmcia_irq_info {
  70         unsigned int sock;
  71         unsigned int irq;
  72 };
  73
  74 /* This structure encapsulates per-socket state which we might need to
  75  * use when responding to a Card Services query of some kind.
  76  */
  77 struct bcm47xx_pcmcia_socket {
  78   socket_state_t        cs_state;
  79   struct pcmcia_state   k_state;
  80   unsigned int          irq;
  81   void                  (*handler)(void *, unsigned int);
  82   void                  *handler_info;
  83   pccard_io_map         io_map[MAX_IO_WIN];
  84   pccard_mem_map        mem_map[MAX_WIN];
  85   ioaddr_t              virt_io, phys_attr, phys_mem;
  86   unsigned short        speed_io, speed_attr, speed_mem;
  87 };
  88
  89 struct pcmcia_init {
  90         void (*handler)(int irq, void *dev, struct pt_regs *regs);
  91 };
  92
  93 struct pcmcia_low_level {
  94         int (*init)(struct pcmcia_init *);
  95         int (*shutdown)(void);
  96         int (*socket_state)(unsigned sock, struct pcmcia_state *);
  97         int (*get_irq_info)(struct pcmcia_irq_info *);
  98         int (*configure_socket)(const struct pcmcia_configure *);
  99 };
 100
 101 extern struct pcmcia_low_level bcm47xx_pcmcia_ops;
 102
 103 /* I/O pins replacing memory pins
 104  * (PCMCIA System Architecture, 2nd ed., by Don Anderson, p.75)
 105  *
 106  * These signals change meaning when going from memory-only to
 107  * memory-or-I/O interface:
 108  */
 109 #define iostschg bvd1
 110 #define iospkr   bvd2
 111
 112
 113 /*
 114  * Declaration for implementation specific low_level operations.
 115  */
 116 extern struct pcmcia_low_level bcm4710_pcmcia_ops;
 117
 118 #endif  /* !defined(_BCM4710PCMCIA_H) */