include/asm-arm/arch-pxa/aximx5-gpio.h

   1 /*
   2  * Dell Axim X5 GPIO definitions.
   3  *
   4  * Authors: Martin Demin <demo@twincar.sk>,
   5  *          Andrew Zabolotny <anpaza@mail.ru>
   6  *
   7  * Here are the definition of most of the Dell Axim GPIOs.
   8  * Keep in mind that this file is a result of a great reverse-engineering
   9  * work, and not from a Dell source, thus some definitions may be wrong
  10  * (especially those that aren't used yet in drivers). These are usually
  11  * marked either by "Unconfirmed guess" comments, or a ??? in comment.
  12  *
  13  * Only GPIOs with alternate function=0 are defined here (even if unknown
  14  * there is a comment saying it is unknown, and this means they use AF=0).
  15  */
  16
  17 #ifndef _AXIMX5_GPIO_H_
  18 #define _AXIMX5_GPIO_H_
  19
  20 #define GET_AXIMX5_GPIO(gpio) \
  21         (GPLR(GPIO_NR_AXIMX5_ ## gpio) & GPIO_bit(GPIO_NR_AXIMX5_ ## gpio))
  22
  23 #define SET_AXIMX5_GPIO(gpio, setp) \
  24 do { \
  25 if (setp) \
  26         GPSR(GPIO_NR_AXIMX5_ ## gpio) = GPIO_bit(GPIO_NR_AXIMX5_ ## gpio); \
  27 else \
  28         GPCR(GPIO_NR_AXIMX5_ ## gpio) = GPIO_bit(GPIO_NR_AXIMX5_ ## gpio); \
  29 } while (0)
  30
  31 #define SET_AXIMX5_GPIO_N(gpio, setp) \
  32 do { \
  33 if (setp) \
  34         GPCR(GPIO_NR_AXIMX5_ ## gpio ## _N) = GPIO_bit(GPIO_NR_AXIMX5_ ## gpio ## _N); \
  35 else \
  36         GPSR(GPIO_NR_AXIMX5_ ## gpio ## _N) = GPIO_bit(GPIO_NR_AXIMX5_ ## gpio ## _N); \
  37 } while (0)
  38
  39 #define AXIMX5_IRQ(gpio) \
  40         IRQ_GPIO(GPIO_NR_AXIMX5_ ## gpio)
  41
  42 #define GPIO_NR_AXIMX5_POWER_BUTTON_N           0
  43 #define GPIO_NR_AXIMX5_RESET_BUTTON_N           1
  44 #define GPIO_NR_AXIMX5_MQ1132_INT               2 /* Interrupt from MediaQ 1132 */
  45 #define GPIO_NR_AXIMX5_BATTERY_LATCH            3 /* Battery latch closed (1) or open (0) */
  46 #define GPIO_NR_AXIMX5_CRADLE_DETECT_N          4 /* PDA is in cradle (0) or out of cradle (1) */
  47 /* GPIO5 is unknown */
  48 #define GPIO_NR_AXIMX5_SD_DETECT_N              6 /* SD/MMC card inserted (1) */
  49 #define GPIO_NR_AXIMX5_PCMCIA_DETECT_N          7 /* CF card inserted (1) */
  50 #define GPIO_NR_AXIMX5_PCMCIA_BVD1              8 /* Unconfirmed guess */
  51 #define GPIO_NR_AXIMX5_MAINBAT_RDY              9 /* Main battery inserted (huh?) */
  52 #define GPIO_NR_AXIMX5_BUTTON_RECORD            10
  53 #define GPIO_NR_AXIMX5_BUTTON_CALENDAR          11
  54 #define GPIO_NR_AXIMX5_BUTTON_CONTACTS          12
  55 #define GPIO_NR_AXIMX5_BUTTON_MAILBOX           13
  56 #define GPIO_NR_AXIMX5_BUTTON_HOME              14
  57 #define GPIO_NR_AXIMX5_AC_POWER_N               17 /* AC power (0) or battery power (1) */
  58 #define GPIO_NR_AXIMX5_RS232_DCD                19 /* Power to serial level converter */
  59 /* GPIO20 is unknown (output) */
  60 /* GPIO21 is unknown (input) */
  61 #define GPIO_NR_AXIMX5_USB_PULL_UP_N            22
  62 /* GPIO23 is unknown (output) */
  63 /* GPIO24 is unknown (output) */
  64 #define GPIO_NR_AXIMX5_POWER_OK                 25 /* Power source is enough ??? */
  65 #define GPIO_NR_AXIMX5_PCMCIA_ADD_EN_N          26 /* !enable address to be driven to PCMCIA bus */
  66 #define GPIO_NR_AXIMX5_JOY_PRESSED              27 /* Joystick pressed (any of JOY_? bits); 0 - down  */
  67 #define GPIO_NR_AXIMX5_TOUCHSCREEN              32 /* Touchscreen comparator */
  68 /* GPIO58 is unknown (output) */
  69 #define GPIO_NR_AXIMX5_CHARGING                 59
  70 #define GPIO_NR_AXIMX5_FLASH_WE                 60 /* Flash write enable */
  71 #define GPIO_NR_AXIMX5_PCMCIA_BVD2              61 /* Unconfirmed guess */
  72 #define GPIO_NR_AXIMX5_PCMCIA_RESET             62
  73 #define GPIO_NR_AXIMX5_PCMCIA_BUFF_EN_N         63 /* enable PCMCIA buffers ??? */
  74 #define GPIO_NR_AXIMX5_JOY_NW                   64 /* 0 - down, 1 - up */
  75 #define GPIO_NR_AXIMX5_JOY_NE                   65 /* 0 - down, 1 - up */
  76 #define GPIO_NR_AXIMX5_JOY_SE                   66 /* 0 - down, 1 - up */
  77 #define GPIO_NR_AXIMX5_JOY_SW                   67 /* 0 - down, 1 - up */
  78 #define GPIO_JOY_DIR                            (GPLR2 & 15)
  79 /* The up, down, left and right joystick directions are given by combination
  80  * of two respective buttons. Most of the time the joystick "center" button
  81  * (GPIO27) is also pressed together with above buttons, although when
  82  * pressing it carefully you can trigger just the above GPIOs, without 27.
  83  */
  84 #define GPIO_NR_AXIMX5_SCROLL_DOWN              68
  85 #define GPIO_NR_AXIMX5_SCROLL_PUSH              69
  86 #define GPIO_NR_AXIMX5_SCROLL_UP                70
  87 #define GPIO_NR_AXIMX5_MQ1132_POWER_N           71 /* MediaQ power */
  88 #define GPIO_NR_AXIMX5_MQ1132_ADD_EN            72 /* MediaQ address bus enable */
  89 #define GPIO_NR_AXIMX5_LED_MANUAL_SELECT_N      73 /* Enable LED select via MediaQ GPIO54 */
  90 #define GPIO_NR_AXIMX5_LED_CHARGER_SELECT       74 /* Enable LED select by charger */
  91 #define GPIO_NR_AXIMX5_LED_GREEN_ENABLE_N       80 /* Enable Green LED (0) */
  92
  93 /* GPIOs 75-77 determine the type of cradle that has been plugged in */
  94 #define AXIMX5_CONNECTOR_TYPE \
  95         ((GPLR2 >> (75 - 64)) & 7)
  96 #define AXIMX5_CONNECTOR_IS_SERIAL(x) \
  97         ((x) == 2 || (x) == 4)
  98 #define AXIMX5_CONNECTOR_IS_USB(x) \
  99         ((x) == 3 || (x) == 6)
 100 #define AXIMX5_CONNECTOR_IS_CRADLE(x) \
 101         ((x) < 4)
 102
 103 /*------------------------------- MediaQ 1132 GPIOs --------------------------*/
 104
 105 /* GPIO0 -- seems unused */
 106 #define GPIO_NR_AXIMX5_MQ1132_FP_ENABLE         1 /* enable the flat panel */
 107 #define GPIO_NR_AXIMX5_MQ1132_CF_IREQ           2 /* the CompactFlash interrupt request */
 108 /* GPIO20 -- vertical scan direction ??? */
 109 /* GPIO21 -- unknown ??? default output 0 */
 110 /* GPIO22 -- also somehow related to flat panel; 0 - image is disabled */
 111 #define GPIO_NR_AXIMX5_MQ1132_AMP_MUTE          23 /* Mute the amplifier */
 112 #define GPIO_NR_AXIMX5_MQ1132_AMP_SHUTDOWN      24 /* Shutdown the amplifier */
 113 /* GPIO25 -- unknown ??? default output 1 */
 114 #define GPIO_NR_AXIMX5_MQ1132_LED_SELECT        54 /* 0 - green; 1 - yellow */
 115 /* GPIO55 -- unused ??? maybe somehow SD/MMC related? */
 116 /* GPIO60 -- seems unused */
 117 #define GPIO_NR_AXIMX5_MQ1132_BACKUP_LOAD       61 /* Connect a 3.3k resistor to backup battery */
 118 /* GPIO62 -- unknown ??? default input/output 1 */
 119 #define GPIO_NR_AXIMX5_MQ1132_IR_POWER          63 /* Infrared transceiver power */
 120 #define GPIO_NR_AXIMX5_MQ1132_BACKLIGHT         64 /* Enable backlight */
 121 #define GPIO_NR_AXIMX5_MQ1132_PCMCIA_POWER      65 /* Enable power to PCMCIA slot */
 122 #define GPIO_NR_AXIMX5_MQ1132_BATTERY_TYPE      66 /* Detect battery: (0)3400mAh, (1)1400mAh */
 123
 124 #endif /* _AXIMX5_GPIO_H_ */