include/keyboard.h

   1 #ifndef __KEYBOARD_H
   2 #define __KEYBOARD_H
   3
   4 #ifdef CONFIG_DM_KEYBOARD
   5 #include <input.h>
   6 #include <stdio_dev.h>
   7
   8 /**
   9  * struct keyboard_priv - information about a keyboard, for the uclass
  10  *
  11  * @sdev:       stdio device
  12  * @input:      input configuration (the driver may use this if desired)
  13  */
  14 struct keyboard_priv {
  15         struct stdio_dev sdev;
  16
  17         /*
  18          * This is set up by the uclass but will only be used if the driver
  19          * sets input.dev to its device pointer (it is initially NULL).
  20          */
  21         struct input_config input;
  22 };
  23
  24 /**
  25  * struct keyboard_ops - keyboard device operations
  26  */
  27 struct keyboard_ops {
  28         /**
  29          * start() - enable the keyboard ready for use
  30          *
  31          * @dev:        Device to enable
  32          * @return 0 if OK, -ve on error
  33          */
  34         int (*start)(struct udevice *dev);
  35
  36         /**
  37          * stop() - disable the keyboard when no-longer needed
  38          *
  39          * @dev:        Device to disable
  40          * @return 0 if OK, -ve on error
  41          */
  42         int (*stop)(struct udevice *dev);
  43
  44         /**
  45          * tstc() - check if a key is available
  46          *
  47          * @dev:        Device to check
  48          * @return 0 if no key is available, 1 if a key is available, -ve on
  49          *         error
  50          */
  51         int (*tstc)(struct udevice *dev);
  52
  53         /**
  54          * getc() - get a key
  55          *
  56          * TODO(sjg@chromium.org): At present this method may wait if it calls
  57          * input_getc().
  58          *
  59          * @dev:        Device to read from
  60          * @return -EAGAIN if no key is available, otherwise key value read
  61          *         (as ASCII).
  62          */
  63         int (*getc)(struct udevice *dev);
  64
  65         /**
  66          * update_leds() - update keyboard LEDs
  67          *
  68          * This is called when the LEDs have changed and need to be updated.
  69          * For example, if 'caps lock' is pressed then this method will be
  70          * called with the new LED value.
  71          *
  72          * @dev:        Device to update
  73          * @leds:       New LED mask (see INPUT_LED_... in input.h)
  74          */
  75         int (*update_leds)(struct udevice *dev, int leds);
  76 };
  77
  78 #define keyboard_get_ops(dev)   ((struct keyboard_ops *)(dev)->driver->ops)
  79
  80 #else
  81
  82 #ifdef CONFIG_PS2MULT
  83 #include <ps2mult.h>
  84 #endif
  85
  86 #if !defined(kbd_request_region) || \
  87     !defined(kbd_request_irq) || \
  88     !defined(kbd_read_input) || \
  89     !defined(kbd_read_status) || \
  90     !defined(kbd_write_output) || \
  91     !defined(kbd_write_command)
  92 #error PS/2 low level routines not defined
  93 #endif
  94
  95 extern int kbd_init (void);
  96 extern void handle_scancode(unsigned char scancode);
  97 extern int kbd_init_hw(void);
  98 extern void pckbd_leds(unsigned char leds);
  99 #endif /* !CONFIG_DM_KEYBOARD */
 100
 101 #if defined(CONFIG_ARCH_MPC8540) || \
 102                 defined(CONFIG_ARCH_MPC8541) || defined(CONFIG_ARCH_MPC8555)
 103 int ps2ser_check(void);
 104 #endif
 105
 106 #endif /* __KEYBOARD_H */