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
   9 enum crisv32_io_dir
  10 {
  11   crisv32_io_dir_in = 0,
  12   crisv32_io_dir_out = 1
  13 };
  14
  15 struct 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
  24 struct crisv32_iopin
  25 {
  26   struct crisv32_ioport* port;
  27   int bit;
  28 };
  29
  30 extern struct crisv32_ioport crisv32_ioports[];
  31
  32 extern struct crisv32_iopin crisv32_led1_green;
  33 extern struct crisv32_iopin crisv32_led1_red;
  34 extern struct crisv32_iopin crisv32_led2_green;
  35 extern struct crisv32_iopin crisv32_led2_red;
  36 extern struct crisv32_iopin crisv32_led3_green;
  37 extern struct crisv32_iopin crisv32_led3_red;
  38
  39 extern struct crisv32_iopin crisv32_led_net0_green;
  40 extern struct crisv32_iopin crisv32_led_net0_red;
  41 extern struct crisv32_iopin crisv32_led_net1_green;
  42 extern struct crisv32_iopin crisv32_led_net1_red;
  43
  44 static 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
  57 static 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
  71 static inline int crisv32_io_rd(struct crisv32_iopin* iopin)
  72 {
  73         return ((*iopin->port->data_in & iopin->bit) ? 1 : 0);
  74 }
  75
  76 int crisv32_io_get(struct crisv32_iopin* iopin,
  77                    unsigned int port, unsigned int pin);
  78 int 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