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483 lines
13 KiB
483 lines
13 KiB
5 months ago
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/*
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* Copyright (c) 2006-2021, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2020/12/31 Bernard Add license info
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*/
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#include <rthw.h>
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#include <rtthread.h>
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#include <rtdevice.h>
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#include "board.h"
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#include "interrupt.h"
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#include "drv_keyboard.h"
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#define DBG_LVL DBG_INFO
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#include "rtdbg.h"
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#define KEYBOARD_ADDRESS (0x10006000)
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#define KEYBOARD_IRQ_NUM (IRQ_VEXPRESS_A9_KBD)
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#ifdef PKG_USING_GUIENGINE
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#include <rtgui/event.h>
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#include <rtgui/rtgui_server.h>
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typedef rt_uint32_t virtual_addr_t;
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enum{
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KEYBOARD_CR = 0x00,
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KEYBOARD_STAT = 0x04,
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KEYBOARD_DATA = 0x08,
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KEYBOARD_CLKDIV = 0x0c,
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KEYBOARD_IIR = 0x10,
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};
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struct keyboard_pl050_pdata_t
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{
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virtual_addr_t virt;
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int irq;
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};
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enum decode_state {
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DECODE_STATE_MAKE_CODE,
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DECODE_STATE_BREAK_CODE,
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DECODE_STATE_LONG_MAKE_CODE,
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DECODE_STATE_LONG_BREAK_CODE
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};
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struct keymap {
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rt_uint8_t data;
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rt_uint32_t key;
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rt_uint32_t unicode;
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char *normal_key;
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};
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enum key_value_t {
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KEY_BUTTON_UP,
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KEY_BUTTON_DOWN,
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};
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enum {
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KBD_LEFT_SHIFT = (0x1 << 0),
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KBD_RIGHT_SHIFT = (0x1 << 1),
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KBD_LEFT_CTRL = (0x1 << 2),
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KBD_RIGHT_CTRL = (0x1 << 3),
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KBD_CAPS_LOCK = (0x1 << 6),
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KBD_NUM_LOCK = (0x1 << 7),
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KBD_SCROLL_LOCK = (0x1 << 8),
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};
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static const struct keymap map[] = {
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{0x1c, RTGUIK_a, 0, "a", },
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{0x32, RTGUIK_b, 0, "b", },
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{0x21, RTGUIK_c, 0, "c", },
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{0x23, RTGUIK_d, 0, "d", },
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{0x24, RTGUIK_e, 0, "e", },
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{0x2b, RTGUIK_f, 0, "f", },
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{0x34, RTGUIK_g, 0, "g", },
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{0x33, RTGUIK_h, 0, "h", },
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{0x43, RTGUIK_i, 0, "i", },
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{0x3b, RTGUIK_j, 0, "j", },
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{0x42, RTGUIK_k, 0, "k", },
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{0x4b, RTGUIK_l, 0, "l", },
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{0x3a, RTGUIK_m, 0, "m", },
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{0x31, RTGUIK_n, 0, "n", },
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{0x44, RTGUIK_o, 0, "o", },
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{0x4d, RTGUIK_p, 0, "p", },
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{0x15, RTGUIK_q, 0, "q", },
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{0x2d, RTGUIK_r, 0, "r", },
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{0x1b, RTGUIK_s, 0, "s", },
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{0x2c, RTGUIK_k, 0, "k", },
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{0x3c, RTGUIK_u, 0, "u", },
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{0x2a, RTGUIK_v, 0, "v", },
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{0x1d, RTGUIK_w, 0, "w", },
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{0x22, RTGUIK_x, 0, "x", },
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{0x35, RTGUIK_y, 0, "y", },
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{0x1a, RTGUIK_z, 0, "z", },
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{0x45, RTGUIK_0, 0, "0", },
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{0x16, RTGUIK_1, 0, "1", },
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{0x1e, RTGUIK_2, 0, "2", },
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{0x26, RTGUIK_3, 0, "3", },
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{0x25, RTGUIK_4, 0, "4", },
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{0x2e, RTGUIK_5, 0, "5", },
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{0x36, RTGUIK_6, 0, "6", },
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{0x3d, RTGUIK_7, 0, "7", },
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{0x3e, RTGUIK_8, 0, "8", },
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{0x46, RTGUIK_9, 0, "9", },
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{0x05, RTGUIK_F1, 0, "F1", },
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{0x06, RTGUIK_F2, 0, "F2", },
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{0x04, RTGUIK_F3, 0, "F3", },
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{0x0c, RTGUIK_F4, 0, "F4", },
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{0x03, RTGUIK_F5, 0, "F5", },
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{0x0b, RTGUIK_F6, 0, "F6", },
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{0x83, RTGUIK_F7, 0, "F7", },
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{0x0a, RTGUIK_F8, 0, "F8", },
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{0x01, RTGUIK_F9, 0, "F9", },
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{0x09, RTGUIK_F10, 0, "F10", },
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{0x78, RTGUIK_F11, 0, "F11", },
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{0x07, RTGUIK_F12, 0, "F12", },
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{0x29, RTGUIK_SPACE, 0, "SPACE" },
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{0x71, RTGUIK_DELETE, 0, "DELETE" },
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{0x52, RTGUIK_QUOTE, 0, "'" },
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{0x55, RTGUIK_EQUALS, 0, "=" },
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{0x41, RTGUIK_COMMA, 0, "," },
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{0x4e, RTGUIK_MINUS, 0, "-" },
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// {0x49, RTGUIK_, 0, "." },
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{0x4a, RTGUIK_SLASH, 0, "/" },
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{0x4c, RTGUIK_SEMICOLON, 0, ";" },
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{0x54, RTGUIK_LEFTBRACKET, 0, "[" },
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{0x5d, RTGUIK_BACKSLASH, 0, "\\" },
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{0x5b, RTGUIK_RIGHTBRACKET, 0, "]"},
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{0x75, RTGUIK_UP, 0, "UP" },
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{0x72, RTGUIK_DOWN, 0, "DOWN" },
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{0x6b, RTGUIK_LEFT, 0, "LEFT" },
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{0x74, RTGUIK_RIGHT, 0, "RIGHT" },
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{0x0d, RTGUIK_TAB, 0, "TAB" },
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{0x76, RTGUIK_ESCAPE, 0, "ESC" },
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{0x37, RTGUIK_POWER, 0, "POWER" },
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{0x5a, RTGUIK_KP_ENTER, 0, "ENTER"},
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{0x66, RTGUIK_BACKSPACE, 0, "BACKSPACE"},
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};
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rt_inline rt_uint8_t read8(uint32_t addr)
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{
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return (*((volatile rt_uint8_t *)(addr)));
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}
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rt_inline void write8(uint32_t addr, rt_uint8_t value)
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{
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*((volatile rt_uint8_t *)(addr)) = value;
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}
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rt_inline rt_uint32_t read32(uint32_t addr)
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{
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return (*((volatile rt_uint32_t *)(addr)));
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}
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rt_inline void write32(uint32_t addr, rt_uint32_t value)
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{
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*((volatile rt_uint32_t *)(addr)) = value;
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}
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rt_inline int kmi_write(struct keyboard_pl050_pdata_t * pdat, rt_uint8_t value)
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{
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int timeout = 1000;
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while((read8(pdat->virt + KEYBOARD_STAT) & (1 << 6)) == 0 && timeout--);
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if(timeout)
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{
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write8(pdat->virt + KEYBOARD_DATA, value);
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while((read8(pdat->virt + KEYBOARD_STAT) & (1 << 4)) == 0);
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if(read8(pdat->virt + KEYBOARD_DATA) == 0xfa)
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return RT_TRUE;
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}
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return RT_FALSE;
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}
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rt_inline int kmi_read(struct keyboard_pl050_pdata_t * pdat, rt_uint8_t * value)
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{
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if((read8(pdat->virt + KEYBOARD_STAT) & (1 << 4)))
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{
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*value = read8(pdat->virt + KEYBOARD_DATA);
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return RT_TRUE;
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}
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return RT_FALSE;
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}
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static void keyboard_report_event(void * device, rt_uint32_t flag, rt_uint8_t data, enum key_value_t press)
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{
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struct rtgui_event_kbd key_event;
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rt_uint16_t i = 0, mod = 0, find_key = 0;
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for(i = 0; i < sizeof(map)/sizeof(map[0]); i++)
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{
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if (map[i].data == data)
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{
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LOG_D("KEY info:");
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if (flag & KBD_CAPS_LOCK)
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{
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LOG_D("CAPS:LOCK");
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}
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else
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{
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LOG_D("CAPS:UNLOCK");
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}
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if (flag & KBD_LEFT_SHIFT)
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{
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mod |= RTGUI_KMOD_LSHIFT;
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LOG_D("SHIFT:LEFT");
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}
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else if (flag & KBD_RIGHT_SHIFT)
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{
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mod |= RTGUI_KMOD_RSHIFT;
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LOG_D("SHIFT:RIGHT");
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}
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else
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{
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LOG_D("SHIFT:NULL");
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}
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if (flag & KBD_LEFT_CTRL)
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{
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mod |= RTGUI_KMOD_LCTRL;
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LOG_D("CTRL:LEFT");
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}
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else if (flag & KBD_RIGHT_CTRL)
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{
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mod |= RTGUI_KMOD_RCTRL;
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LOG_D("CTRL:RIGHT");
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}
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else
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{
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LOG_D("CTRL:NULL");
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}
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LOG_D("flag:0x%08x value:0x%x key:%s status:%s", \
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flag, data, map[i].normal_key, press ==0 ? "UP" : "DOWN");
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find_key = 1;
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break;
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}
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}
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if (find_key == 0)
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{
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LOG_D("flag:0x%08x value:0x%x key:%s status:%s", \
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flag, data, "UNKNOWN", press ==0 ? "UP" : "DOWN");
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return;
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}
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key_event.parent.sender = RT_NULL;
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key_event.parent.type = RTGUI_EVENT_KBD;
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key_event.type = (press == 0 ? RTGUI_KEYUP : RTGUI_KEYDOWN);
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key_event.key = map[i].key;
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key_event.mod = mod;
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key_event.unicode = map[i].unicode;
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rtgui_server_post_event(&key_event.parent, sizeof(key_event));
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}
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static void keyboard_pl050_interrupt(int irq, void *data)
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{
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struct keyboard_pl050_pdata_t * pdat = (struct keyboard_pl050_pdata_t *)data;
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static enum decode_state ds = DECODE_STATE_MAKE_CODE;
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static rt_uint32_t kbd_flag = KBD_NUM_LOCK;
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rt_uint8_t status, value;
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status = read8(pdat->virt + KEYBOARD_IIR);
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while(status & (1 << 0))
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{
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value = read8(pdat->virt + KEYBOARD_DATA);
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switch(ds)
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{
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case DECODE_STATE_MAKE_CODE:
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/* break code */
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if(value == 0xf0)
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{
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ds = DECODE_STATE_BREAK_CODE;
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}
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/* long make code */
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else if(value == 0xe0)
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{
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ds = DECODE_STATE_LONG_MAKE_CODE;
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}
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else
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{
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ds = DECODE_STATE_MAKE_CODE;
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/* left shift */
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if(value == 0x12)
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{
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kbd_flag |= KBD_LEFT_SHIFT;
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}
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/* right shift */
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else if(value == 0x59)
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{
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kbd_flag |= KBD_RIGHT_SHIFT;
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}
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/* left ctrl */
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else if(value == 0x14)
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{
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kbd_flag |= KBD_LEFT_CTRL;
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}
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/* caps lock */
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else if(value == 0x58)
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{
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if(kbd_flag & KBD_CAPS_LOCK)
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kbd_flag &= ~KBD_CAPS_LOCK;
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else
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kbd_flag |= KBD_CAPS_LOCK;
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}
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/* scroll lock */
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else if(value == 0x7e)
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{
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if(kbd_flag & KBD_SCROLL_LOCK)
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kbd_flag &= ~KBD_SCROLL_LOCK;
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else
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kbd_flag |= KBD_SCROLL_LOCK;
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}
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/* num lock */
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else if(value == 0x77)
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{
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if(kbd_flag & KBD_NUM_LOCK)
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kbd_flag &= ~KBD_NUM_LOCK;
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else
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kbd_flag |= KBD_NUM_LOCK;
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}
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/* others */
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else
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{
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keyboard_report_event(data, kbd_flag, value, KEY_BUTTON_DOWN);
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}
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}
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break;
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case DECODE_STATE_BREAK_CODE:
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if( (value != 0xf0) && (value != 0xe0))
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{
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ds = DECODE_STATE_MAKE_CODE;
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/* left shift */
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if(value == 0x12)
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{
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kbd_flag &= ~KBD_LEFT_SHIFT;
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}
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/* right shift */
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else if(value == 0x59)
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{
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|
|
kbd_flag &= ~KBD_RIGHT_SHIFT;
|
||
|
|
}
|
||
|
|
/* left ctrl */
|
||
|
|
else if(value == 0x14)
|
||
|
|
{
|
||
|
|
kbd_flag &= ~KBD_LEFT_CTRL;
|
||
|
|
}
|
||
|
|
/* others */
|
||
|
|
else
|
||
|
|
{
|
||
|
|
keyboard_report_event(data, kbd_flag, value, KEY_BUTTON_UP);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
ds = DECODE_STATE_BREAK_CODE;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case DECODE_STATE_LONG_MAKE_CODE:
|
||
|
|
if( value != 0xf0 && value!= 0xe0)
|
||
|
|
{
|
||
|
|
ds = DECODE_STATE_MAKE_CODE;
|
||
|
|
|
||
|
|
/* left ctrl */
|
||
|
|
if(value == 0x14)
|
||
|
|
{
|
||
|
|
kbd_flag |= KBD_RIGHT_CTRL;
|
||
|
|
}
|
||
|
|
/* others */
|
||
|
|
else
|
||
|
|
{
|
||
|
|
keyboard_report_event(data, kbd_flag, value, KEY_BUTTON_DOWN);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
ds = DECODE_STATE_LONG_BREAK_CODE;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case DECODE_STATE_LONG_BREAK_CODE:
|
||
|
|
if( (value != 0xf0) && (value != 0xe0))
|
||
|
|
{
|
||
|
|
ds = DECODE_STATE_MAKE_CODE;
|
||
|
|
|
||
|
|
/* left ctrl */
|
||
|
|
if(value == 0x14)
|
||
|
|
{
|
||
|
|
kbd_flag &= ~KBD_RIGHT_CTRL;
|
||
|
|
}
|
||
|
|
/* others */
|
||
|
|
else
|
||
|
|
{
|
||
|
|
keyboard_report_event(data, kbd_flag, value, KEY_BUTTON_UP);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
ds = DECODE_STATE_LONG_BREAK_CODE;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
ds = DECODE_STATE_MAKE_CODE;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
status = read8(pdat->virt + KEYBOARD_IIR);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
int rt_hw_keyboard_init(void)
|
||
|
|
{
|
||
|
|
rt_uint8_t value;
|
||
|
|
rt_uint32_t id;
|
||
|
|
struct keyboard_pl050_pdata_t *pdat;
|
||
|
|
virtual_addr_t virt;
|
||
|
|
int irq = KEYBOARD_IRQ_NUM;
|
||
|
|
|
||
|
|
virt = (virtual_addr_t)rt_ioremap((void*)KEYBOARD_ADDRESS, 0x1000);
|
||
|
|
|
||
|
|
id = (((read32(virt + 0xfec) & 0xff) << 24) |
|
||
|
|
((read32(virt + 0xfe8) & 0xff) << 16) |
|
||
|
|
((read32(virt + 0xfe4) & 0xff) << 8) |
|
||
|
|
((read32(virt + 0xfe0) & 0xff) << 0));
|
||
|
|
|
||
|
|
if(((id >> 12) & 0xff) != 0x41 || (id & 0xfff) != 0x050)
|
||
|
|
{
|
||
|
|
LOG_E("read id fail id:0x%08x", id);
|
||
|
|
return -RT_ERROR;
|
||
|
|
}
|
||
|
|
|
||
|
|
pdat = rt_malloc(sizeof(struct keyboard_pl050_pdata_t));
|
||
|
|
if(!pdat)
|
||
|
|
{
|
||
|
|
LOG_E("malloc memory failed");
|
||
|
|
return -RT_ERROR;
|
||
|
|
}
|
||
|
|
rt_memset(pdat, 0, sizeof(struct keyboard_pl050_pdata_t));
|
||
|
|
|
||
|
|
pdat->virt = virt;
|
||
|
|
pdat->irq = irq;
|
||
|
|
|
||
|
|
write8(pdat->virt + KEYBOARD_CLKDIV, 0);
|
||
|
|
write8(pdat->virt + KEYBOARD_CR, (1 << 2));
|
||
|
|
kmi_read(pdat, &value);
|
||
|
|
kmi_write(pdat, 0xff);
|
||
|
|
kmi_read(pdat, &value);
|
||
|
|
kmi_write(pdat, 0xf3);
|
||
|
|
kmi_write(pdat, 0x2b);
|
||
|
|
kmi_write(pdat, 0xf0);
|
||
|
|
kmi_write(pdat, 0x02);
|
||
|
|
kmi_write(pdat, 0xfa);
|
||
|
|
kmi_write(pdat, 0xed);
|
||
|
|
kmi_write(pdat, 0x02);
|
||
|
|
write8(pdat->virt + KEYBOARD_CR, (1 << 2) | (1 << 4));
|
||
|
|
|
||
|
|
rt_hw_interrupt_install(irq, keyboard_pl050_interrupt, (void *)pdat, "keyboard");
|
||
|
|
rt_hw_interrupt_umask(irq);
|
||
|
|
|
||
|
|
return RT_EOK;
|
||
|
|
}
|
||
|
|
INIT_DEVICE_EXPORT(rt_hw_keyboard_init);
|
||
|
|
|
||
|
|
#endif
|