116 lines
2.5 KiB
C
116 lines
2.5 KiB
C
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/*
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* Copyright (C) 2009 STMicroelectronics Limited
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* Author: Pawel Moll <pawel.moll@st.com>
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*
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* May be copied or modified under the terms of the GNU General Public
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* License. See linux/COPYING for more information.
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*/
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#ifndef __TM1668_H
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#define __TM1668_H
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#include <linux/input.h>
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struct tm1668_character {
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char character;
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u16 value;
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};
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struct tm1668_key {
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u32 mask; /* as read from "keys" attribute */
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int code; /* input event code (KEY_*) */
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char *desc;
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};
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struct tm1668_platform_data {
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/* Wiring information */
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unsigned gpio_dio, gpio_sclk, gpio_stb;
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enum {
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tm1668_config_6_digits_12_segments,
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tm1668_config_7_digits_11_segments,
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} config;
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/* Keyboard */
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int keys_num;
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struct tm1668_key *keys;
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unsigned long keys_poll_period; /* jiffies */
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/* Display control */
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int brightness; /* initial value, 0 (disabled) - 8 (max) */
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int characters_num;
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struct tm1668_character *characters;
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const char *text; /* initial value, if encoding table available */
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};
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/* The following encoding tables assume 7 segments display,
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* wired in "standard" order:
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*
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* 0
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* -----
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* 5| |1
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* | 6 |
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* -----
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* 4| |2
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* | |
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* ----- .7
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* 3
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*/
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/* Hexadecimal digits (with lowercase letters) */
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#define TM1668_7_SEG_HEX_DIGITS \
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{ '0', 0x03f }, \
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{ '1', 0x006 }, \
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{ '2', 0x05b }, \
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{ '3', 0x04f }, \
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{ '4', 0x066 }, \
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{ '5', 0x06d }, \
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{ '6', 0x07d }, \
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{ '7', 0x007 }, \
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{ '8', 0x07f }, \
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{ '9', 0x06f }, \
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{ 'a', 0x077 }, \
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{ 'b', 0x07c }, \
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{ 'c', 0x058 }, \
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{ 'd', 0x05e }, \
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{ 'e', 0x079 }, \
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{ 'f', 0x071 }
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/* Hexadecimal digits with dot (uppercase letters & "<SHIFT>+number") */
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#define TM1668_7_SEG_HEX_DIGITS_WITH_DOT \
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{ ')', 0x03f + 0x080 }, \
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{ '!', 0x006 + 0x080 }, \
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{ '@', 0x05b + 0x080 }, \
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{ '#', 0x04f + 0x080 }, \
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{ '$', 0x066 + 0x080 }, \
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{ '%', 0x06d + 0x080 }, \
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{ '^', 0x07d + 0x080 }, \
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{ '&', 0x007 + 0x080 }, \
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{ '*', 0x07f + 0x080 }, \
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{ '(', 0x06f + 0x080 }, \
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{ 'A', 0x077 + 0x080 }, \
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{ 'B', 0x07c + 0x080 }, \
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{ 'C', 0x058 + 0x080 }, \
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{ 'D', 0x05e + 0x080 }, \
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{ 'E', 0x079 + 0x080 }, \
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{ 'F', 0x071 + 0x080 }
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/* Individual segments: ~ *
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* { } *
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* (useful to make - *
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* a clock or [ ] *
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* a snake ;-) _ . */
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#define TM1668_7_SEG_SEGMENTS \
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{ '~', 0x001 }, \
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{ '}', 0x002 }, \
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{ ']', 0x004 }, \
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{ '_', 0x008 }, \
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{ '[', 0x010 }, \
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{ '{', 0x020 }, \
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{ '-', 0x040 }, \
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{ '.', 0x080 }
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#endif
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