1 files changed, 140 insertions, 0 deletions

diff --git a/qemu/roms/u-boot/include/input.h b/qemu/roms/u-boot/include/input.h
new file mode 100644
index 000000000..26e2ad700
--- /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