12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879 |
- #ifndef __KEYBOARD_H
- #define __KEYBOARD_H
- #include <input.h>
- #include <stdio_dev.h>
- /**
- * struct keyboard_priv - information about a keyboard, for the uclass
- *
- * @sdev: stdio device
- * @input: input configuration (the driver may use this if desired)
- */
- struct keyboard_priv {
- struct stdio_dev sdev;
- /*
- * This is set up by the uclass but will only be used if the driver
- * sets input.dev to its device pointer (it is initially NULL).
- */
- struct input_config input;
- };
- /**
- * struct keyboard_ops - keyboard device operations
- */
- struct keyboard_ops {
- /**
- * start() - enable the keyboard ready for use
- *
- * @dev: Device to enable
- * @return 0 if OK, -ve on error
- */
- int (*start)(struct udevice *dev);
- /**
- * stop() - disable the keyboard when no-longer needed
- *
- * @dev: Device to disable
- * @return 0 if OK, -ve on error
- */
- int (*stop)(struct udevice *dev);
- /**
- * tstc() - check if a key is available
- *
- * @dev: Device to check
- * @return 0 if no key is available, 1 if a key is available, -ve on
- * error
- */
- int (*tstc)(struct udevice *dev);
- /**
- * getc() - get a key
- *
- * TODO(sjg@chromium.org): At present this method may wait if it calls
- * input_getc().
- *
- * @dev: Device to read from
- * @return -EAGAIN if no key is available, otherwise key value read
- * (as ASCII).
- */
- int (*getc)(struct udevice *dev);
- /**
- * update_leds() - update keyboard LEDs
- *
- * This is called when the LEDs have changed and need to be updated.
- * For example, if 'caps lock' is pressed then this method will be
- * called with the new LED value.
- *
- * @dev: Device to update
- * @leds: New LED mask (see INPUT_LED_... in input.h)
- */
- int (*update_leds)(struct udevice *dev, int leds);
- };
- #define keyboard_get_ops(dev) ((struct keyboard_ops *)(dev)->driver->ops)
- #endif /* __KEYBOARD_H */
|