Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / include / input.h

diff --git a/qemu/roms/u-boot/include/input.h b/qemu/roms/u-boot/include/input.h
new file mode 100644 (file)
index 0000000..26e2ad7
--- /dev/null
+++ b/qemu/roms/u-boot/include/input.h
@@ -0,0 +1,140 @@
+/*
+ * Keyboard input helper functions (too small to be called a layer)
+ *
+ * Copyright (c) 2011 The Chromium OS Authors.
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#ifndef _INPUT_H
+#define _INPUT_H
+
+enum {
+       INPUT_MAX_MODIFIERS     = 4,
+       INPUT_BUFFER_LEN        = 16,
+};
+
+enum {
+       /* Keyboard LEDs */
+       INPUT_LED_SCROLL        = 1 << 0,
+       INPUT_LED_CAPS          = 1 << 1,
+       INPUT_LED_NUM           = 1 << 2,
+};
+
+/*
+ * This table translates key codes to ASCII. Most of the entries are ASCII
+ * codes, but entries after KEY_FIRST_MOD indicate that this key is a
+ * modifier key, like shift, ctrl. KEY_FIRST_MOD + MOD_SHIFT is the shift
+ * key, for example.
+ */
+struct input_key_xlate {
+       /* keycode of the modifiers which select this table, -1 if none */
+       int left_keycode;
+       int right_keycode;
+       const uchar *xlate;     /* keycode to ASCII table */
+       int num_entries;        /* number of entries in this table */
+};
+
+struct input_config {
+       uchar fifo[INPUT_BUFFER_LEN];
+       int fifo_in, fifo_out;
+
+       /* Which modifiers are active (1 bit for each MOD_... value) */
+       uchar modifiers;
+       uchar flags;            /* active state keys (FLAGS_...) */
+       uchar leds;             /* active LEDS (INPUT_LED_...) */
+       uchar num_tables;       /* number of modifier tables */
+       int prev_keycodes[INPUT_BUFFER_LEN];    /* keys held last time */
+       int num_prev_keycodes;  /* number of prev keys */
+       struct input_key_xlate table[INPUT_MAX_MODIFIERS];
+
+       /**
+        * Function the input helper calls to scan the keyboard
+        *
+        * @param config        Input state
+        * @return 0 if no keys read, otherwise number of keys read, or 1 if
+        *              unknown
+        */
+       int (*read_keys)(struct input_config *config);
+       unsigned int next_repeat_ms;    /* Next time we repeat a key */
+       unsigned int repeat_delay_ms;   /* Time before autorepeat starts */
+       unsigned int repeat_rate_ms;    /* Autorepeat rate in ms */
+};
+
+struct stdio_dev;
+
+/**
+ * Convert a list of key codes into ASCII and send them
+ *
+ * @param config       Input state
+ * @param keycode      List of key codes to examine
+ * @param num_keycodes Number of key codes
+ * @return number of ascii characters sent, or 0 if none, or -1 for an
+ *     internal error
+ */
+int input_send_keycodes(struct input_config *config, int keycode[], int count);
+
+/**
+ * Add a new key translation table to the input
+ *
+ * @param config       Input state
+ * @param left_keycode Key to hold to get into this table
+ * @param right_keycode        Another key to hold to get into this table
+ * @param xlate                Conversion table from key codes to ASCII
+ * @param num_entries  Number of entries in xlate table
+ */
+int input_add_table(struct input_config *config, int left_keycode,
+                   int right_keycode, const uchar *xlate, int num_entries);
+
+/**
+ * Test if keys are available to be read
+ *
+ * @param config       Input state
+ * @return 0 if no keys available, 1 if keys are available
+ */
+int input_tstc(struct input_config *config);
+
+/**
+ * Read a key
+ *
+ * TODO: U-Boot wants 0 for no key, but Ctrl-@ is a valid key...
+ *
+ * @param config       Input state
+ * @return key, or 0 if no key, or -1 if error
+ */
+int input_getc(struct input_config *config);
+
+/**
+ * Register a new device with stdio and switch to it if wanted
+ *
+ * @param dev  Pointer to device
+ * @return 0 if ok, -1 on error
+ */
+int input_stdio_register(struct stdio_dev *dev);
+
+/**
+ * Set up the keyboard autorepeat delays
+ *
+ * @param repeat_delay_ms      Delay before key auto-repeat starts (in ms)
+ * @param repeat_rate_ms       Delay between successive key repeats (in ms)
+ */
+void input_set_delays(struct input_config *config, int repeat_delay_ms,
+              int repeat_rate_ms);
+
+/**
+ * Set up the input handler with basic key maps.
+ *
+ * @param config       Input state
+ * @param leds         Initial LED value (INPUT_LED_ mask), 0 suggested
+ * @return 0 if ok, -1 on error
+ */
+int input_init(struct input_config *config, int leds);
+
+#ifdef CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE
+extern int overwrite_console(void);
+#define OVERWRITE_CONSOLE overwrite_console()
+#else
+#define OVERWRITE_CONSOLE 0
+#endif /* CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE */
+
+#endif