target/linux/olpc/files/include/asm-i386/olpc.h

   1 /* OLPC machine specific definitions */
   2
   3 #ifndef ASM_OLPC_H_
   4 #define ASM_OLPC_H_
   5
   6 #include <asm/geode.h>
   7
   8 struct olpc_platform_t {
   9         int flags;
  10         int boardrev;
  11         int ecver;
  12 };
  13
  14 #define OLPC_F_PRESENT 0x01
  15 #define OLPC_F_DCON    0x02
  16 #define OLPC_F_VSA     0x04
  17
  18 enum
  19 {
  20         OLPC_REV_A = 0,
  21
  22         OLPC_REV_PRE_B1,
  23         OLPC_REV_B1,
  24         OLPC_REV_PRE_B2,
  25         OLPC_REV_B2,
  26         OLPC_REV_PRE_B3,
  27         OLPC_REV_B3,
  28         OLPC_REV_B4,
  29         OLPC_REV_C1,
  30         OLPC_REV_R1,
  31         OLPC_REV_UNKNOWN        /* this should always come last */
  32 };
  33
  34 #ifndef CONFIG_OLPC
  35
  36 static inline int machine_is_olpc(void) { return 0; }
  37 static inline int olpc_has_dcon(void) { return 0; }
  38 static inline int olpc_has_vsa(void) { return 0; }
  39 static inline int olpc_get_rev(void) { return OLPC_REV_UNKNOWN; }
  40
  41 #else
  42
  43 extern struct olpc_platform_t olpc_platform_info;
  44
  45 static inline int
  46 machine_is_olpc(void)
  47 {
  48         return (olpc_platform_info.flags & OLPC_F_PRESENT) ? 1 : 0;
  49 }
  50
  51 static inline int
  52 olpc_has_dcon(void)
  53 {
  54         return (olpc_platform_info.flags & OLPC_F_DCON) ? 1 : 0;
  55 }
  56
  57 static inline int
  58 olpc_has_vsa(void)
  59 {
  60         return (olpc_platform_info.flags & OLPC_F_VSA) ? 1 : 0;
  61 }
  62
  63 static inline int
  64 olpc_get_rev(void)
  65 {
  66         return olpc_platform_info.boardrev;
  67 }
  68
  69 static inline int
  70 olpc_rev_after(int rev)
  71 {
  72         return olpc_platform_info.boardrev > rev &&
  73                         olpc_platform_info.boardrev != OLPC_REV_UNKNOWN;
  74 }
  75
  76 static inline int
  77 olpc_rev_before(int rev)
  78 {
  79         return olpc_platform_info.boardrev < rev ||
  80                         olpc_platform_info.boardrev == OLPC_REV_UNKNOWN;
  81 }
  82
  83 #endif
  84
  85 /* EC functions */
  86
  87 int olpc_ec_cmd(unsigned char cmd, unsigned char *inbuf, size_t inlen,
  88                 unsigned char *outbuf, size_t outlen);
  89
  90 void olpc_register_battery_callback(void (*f)(unsigned long));
  91 void olpc_deregister_battery_callback(void);
  92
  93 /* EC commands and responses */
  94
  95 /* SCI source values */
  96
  97 #define EC_SCI_SRC_EMPTY   0x00
  98 #define EC_SCI_SRC_GAME    0x01
  99 #define EC_SCI_SRC_BATTERY 0x02
 100 #define EC_SCI_SRC_BATSOC  0x04
 101 #define EC_SCI_SRC_BATERR  0x08
 102 #define EC_SCI_SRC_EBOOK   0x10
 103 #define EC_SCI_SRC_WLAN    0x20
 104 #define EC_SCI_SRC_ACPWR   0x40
 105
 106 /* GPIO assignments */
 107
 108 #define OLPC_GPIO_MIC_AC      1
 109 #define OLPC_GPIO_DCON_IRQ    7
 110 #define OLPC_GPIO_THRM_ALRM  10
 111 #define OLPC_GPIO_WORKAUX    24
 112 #define OLPC_GPIO_LID        26
 113 #define OLPC_GPIO_ECSCI      27
 114
 115 #endif
 116