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 (iopin->port->data) {
  50                 if (val)
  51                         *iopin->port->data |= iopin->bit;
  52                 else
  53                         *iopin->port->data &= ~iopin->bit;
  54         }
  55
  56         spin_unlock_irqrestore(&iopin->port->lock, flags);
  57 }
  58
  59 static inline void crisv32_io_set_dir(struct crisv32_iopin* iopin,
  60                                enum crisv32_io_dir dir)
  61 {
  62         unsigned long flags;
  63         spin_lock_irqsave(&iopin->port->lock, flags);
  64
  65         if (iopin->port->oe) {
  66                 if (dir == crisv32_io_dir_in)
  67                         *iopin->port->oe &= ~iopin->bit;
  68                 else
  69                         *iopin->port->oe |= iopin->bit;
  70         }
  71
  72         spin_unlock_irqrestore(&iopin->port->lock, flags);
  73 }
  74
  75 static inline int crisv32_io_rd(struct crisv32_iopin* iopin)
  76 {
  77         return ((*iopin->port->data_in & iopin->bit) ? 1 : 0);
  78 }
  79
  80 int crisv32_io_get(struct crisv32_iopin* iopin,
  81                    unsigned int port, unsigned int pin);
  82 int crisv32_io_get_name(struct crisv32_iopin* iopin,
  83                         const char *name);
  84
  85 #define CRIS_LED_OFF    0x00
  86 #define CRIS_LED_GREEN  0x01
  87 #define CRIS_LED_RED    0x02
  88 #define CRIS_LED_ORANGE (CRIS_LED_GREEN | CRIS_LED_RED)
  89
  90 #if (defined(CONFIG_ETRAX_NBR_LED_GRP_ONE) || defined(CONFIG_ETRAX_NBR_LED_GRP_TWO))
  91 #define CRIS_LED_NETWORK_GRP0_SET(x)                          \
  92         do {                                             \
  93                 CRIS_LED_NETWORK_GRP0_SET_G((x) & CRIS_LED_GREEN); \
  94                 CRIS_LED_NETWORK_GRP0_SET_R((x) & CRIS_LED_RED);   \
  95         } while (0)
  96 #else
  97 #define CRIS_LED_NETWORK_GRP0_SET(x) while (0) {}
  98 #endif
  99
 100 #define CRIS_LED_NETWORK_GRP0_SET_G(x) \
 101         crisv32_io_set(&crisv32_led_net0_green, !(x));
 102
 103 #define CRIS_LED_NETWORK_GRP0_SET_R(x) \
 104         crisv32_io_set(&crisv32_led_net0_red, !(x));
 105
 106 #if defined(CONFIG_ETRAX_NBR_LED_GRP_TWO)
 107 #define CRIS_LED_NETWORK_GRP1_SET(x)                          \
 108         do {                                             \
 109                 CRIS_LED_NETWORK_GRP1_SET_G((x) & CRIS_LED_GREEN); \
 110                 CRIS_LED_NETWORK_GRP1_SET_R((x) & CRIS_LED_RED);   \
 111         } while (0)
 112 #else
 113 #define CRIS_LED_NETWORK_GRP1_SET(x) while (0) {}
 114 #endif
 115
 116 #define CRIS_LED_NETWORK_GRP1_SET_G(x) \
 117         crisv32_io_set(&crisv32_led_net1_green, !(x));
 118
 119 #define CRIS_LED_NETWORK_GRP1_SET_R(x) \
 120         crisv32_io_set(&crisv32_led_net1_red, !(x));
 121
 122 #define CRIS_LED_ACTIVE_SET(x)                           \
 123         do {                                        \
 124                 CRIS_LED_ACTIVE_SET_G((x) & CRIS_LED_GREEN);  \
 125                 CRIS_LED_ACTIVE_SET_R((x) & CRIS_LED_RED);    \
 126         } while (0)
 127
 128 #define CRIS_LED_ACTIVE_SET_G(x) \
 129         crisv32_io_set(&crisv32_led2_green, !(x));
 130 #define CRIS_LED_ACTIVE_SET_R(x) \
 131         crisv32_io_set(&crisv32_led2_red, !(x));
 132 #define CRIS_LED_DISK_WRITE(x) \
 133          do{\
 134                 crisv32_io_set(&crisv32_led3_green, !(x)); \
 135                 crisv32_io_set(&crisv32_led3_red, !(x));   \
 136         }while(0)
 137 #define CRIS_LED_DISK_READ(x) \
 138         crisv32_io_set(&crisv32_led3_green, !(x));
 139
 140 #endif