LXR linux/arch/cris/include/arch-v32/arch/io.h

   1#ifndef _ASM_ARCH_CRIS_IO_H
   2#define _ASM_ARCH_CRIS_IO_H
   3
   4#include <linux/spinlock.h>
   5#include <hwregs/reg_map.h>
   6#include <hwregs/reg_rdwr.h>
   7#include <hwregs/gio_defs.h>
   8
   9enum crisv32_io_dir
  10{
  11  crisv32_io_dir_in = 0,
  12  crisv32_io_dir_out = 1
  13};
  14
  15struct crisv32_ioport
  16{
  17  volatile unsigned long *oe;
  18  volatile unsigned long *data;
  19  volatile unsigned long *data_in;
  20  unsigned int pin_count;
  21  spinlock_t lock;
  22};
  23
  24struct crisv32_iopin
  25{
  26  struct crisv32_ioport* port;
  27  int bit;
  28};
  29
  30extern struct crisv32_ioport crisv32_ioports[];
  31
  32extern struct crisv32_iopin crisv32_led1_green;
  33extern struct crisv32_iopin crisv32_led1_red;
  34extern struct crisv32_iopin crisv32_led2_green;
  35extern struct crisv32_iopin crisv32_led2_red;
  36extern struct crisv32_iopin crisv32_led3_green;
  37extern struct crisv32_iopin crisv32_led3_red;
  38
  39extern struct crisv32_iopin crisv32_led_net0_green;
  40extern struct crisv32_iopin crisv32_led_net0_red;
  41extern struct crisv32_iopin crisv32_led_net1_green;
  42extern struct crisv32_iopin crisv32_led_net1_red;
  43
  44static inline void crisv32_io_set(struct crisv32_iopin *iopin, int val)
  45{
  46        unsigned long flags;
  47        spin_lock_irqsave(&iopin->port->lock, flags);
  48
  49        if (val)
  50                *iopin->port->data |= iopin->bit;
  51        else
  52                *iopin->port->data &= ~iopin->bit;
  53
  54        spin_unlock_irqrestore(&iopin->port->lock, flags);
  55}
  56
  57static inline void crisv32_io_set_dir(struct crisv32_iopin* iopin,
  58                               enum crisv32_io_dir dir)
  59{
  60        unsigned long flags;
  61        spin_lock_irqsave(&iopin->port->lock, flags);
  62
  63        if (dir == crisv32_io_dir_in)
  64                *iopin->port->oe &= ~iopin->bit;
  65        else
  66                *iopin->port->oe |= iopin->bit;
  67
  68        spin_unlock_irqrestore(&iopin->port->lock, flags);
  69}
  70
  71static inline int crisv32_io_rd(struct crisv32_iopin* iopin)
  72{
  73        return ((*iopin->port->data_in & iopin->bit) ? 1 : 0);
  74}
  75
  76int crisv32_io_get(struct crisv32_iopin* iopin,
  77                   unsigned int port, unsigned int pin);
  78int crisv32_io_get_name(struct crisv32_iopin* iopin,
  79                        const char *name);
  80
  81#define CRIS_LED_OFF    0x00
  82#define CRIS_LED_GREEN  0x01
  83#define CRIS_LED_RED    0x02
  84#define CRIS_LED_ORANGE (CRIS_LED_GREEN | CRIS_LED_RED)
  85
  86#if (defined(CONFIG_ETRAX_NBR_LED_GRP_ONE) || defined(CONFIG_ETRAX_NBR_LED_GRP_TWO))
  87#define CRIS_LED_NETWORK_GRP0_SET(x)                          \
  88        do {                                             \
  89                CRIS_LED_NETWORK_GRP0_SET_G((x) & CRIS_LED_GREEN); \
  90                CRIS_LED_NETWORK_GRP0_SET_R((x) & CRIS_LED_RED);   \
  91        } while (0)
  92#else
  93#define CRIS_LED_NETWORK_GRP0_SET(x) while (0) {}
  94#endif
  95
  96#define CRIS_LED_NETWORK_GRP0_SET_G(x) \
  97        crisv32_io_set(&crisv32_led_net0_green, !(x));
  98
  99#define CRIS_LED_NETWORK_GRP0_SET_R(x) \
 100        crisv32_io_set(&crisv32_led_net0_red, !(x));
 101
 102#if defined(CONFIG_ETRAX_NBR_LED_GRP_TWO)
 103#define CRIS_LED_NETWORK_GRP1_SET(x)                          \
 104        do {                                             \
 105                CRIS_LED_NETWORK_GRP1_SET_G((x) & CRIS_LED_GREEN); \
 106                CRIS_LED_NETWORK_GRP1_SET_R((x) & CRIS_LED_RED);   \
 107        } while (0)
 108#else
 109#define CRIS_LED_NETWORK_GRP1_SET(x) while (0) {}
 110#endif
 111
 112#define CRIS_LED_NETWORK_GRP1_SET_G(x) \
 113        crisv32_io_set(&crisv32_led_net1_green, !(x));
 114
 115#define CRIS_LED_NETWORK_GRP1_SET_R(x) \
 116        crisv32_io_set(&crisv32_led_net1_red, !(x));
 117
 118#define CRIS_LED_ACTIVE_SET(x)                           \
 119        do {                                        \
 120                CRIS_LED_ACTIVE_SET_G((x) & CRIS_LED_GREEN);  \
 121                CRIS_LED_ACTIVE_SET_R((x) & CRIS_LED_RED);    \
 122        } while (0)
 123
 124#define CRIS_LED_ACTIVE_SET_G(x) \
 125        crisv32_io_set(&crisv32_led2_green, !(x));
 126#define CRIS_LED_ACTIVE_SET_R(x) \
 127        crisv32_io_set(&crisv32_led2_red, !(x));
 128#define CRIS_LED_DISK_WRITE(x) \
 129         do{\
 130                crisv32_io_set(&crisv32_led3_green, !(x)); \
 131                crisv32_io_set(&crisv32_led3_red, !(x));   \
 132        }while(0)
 133#define CRIS_LED_DISK_READ(x) \
 134        crisv32_io_set(&crisv32_led3_green, !(x));
 135
 136#endif
 137