circuitpython/stm/stmusbh/usbh_hid_keybd.c

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/**
******************************************************************************
* @file usbh_hid_keybd.c
* @author MCD Application Team
* @version V2.1.0
* @date 19-March-2012
* @brief This file is the application layer for USB Host HID Keyboard handling
* QWERTY and AZERTY Keyboard are supported as per the selection in
* usbh_hid_keybd.h
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "usbh_hid_keybd.h"
/** @addtogroup USBH_LIB
* @{
*/
/** @addtogroup USBH_CLASS
* @{
*/
/** @addtogroup USBH_HID_CLASS
* @{
*/
/** @defgroup USBH_HID_KEYBD
* @brief This file includes HID Layer Handlers for USB Host HID class.
* @{
*/
/** @defgroup USBH_HID_KEYBD_Private_TypesDefinitions
* @{
*/
/**
* @}
*/
/** @defgroup USBH_HID_KEYBD_Private_Defines
* @{
*/
/**
* @}
*/
/** @defgroup USBH_HID_KEYBD_Private_Macros
* @{
*/
/**
* @}
*/
/** @defgroup USBH_HID_KEYBD_Private_FunctionPrototypes
* @{
*/
static void KEYBRD_Init (void);
static void KEYBRD_Decode(uint8_t *data);
/**
* @}
*/
#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
#if defined (__CC_ARM) /*!< ARM Compiler */
__align(4)
#elif defined ( __ICCARM__ ) /*!< IAR Compiler */
#pragma data_alignment=4
#elif defined (__GNUC__) /*!< GNU Compiler */
#pragma pack(4)
#elif defined (__TASKING__) /*!< TASKING Compiler */
__align(4)
#endif /* __CC_ARM */
#endif
/** @defgroup USBH_HID_KEYBD_Private_Variables
* @{
*/
HID_cb_TypeDef HID_KEYBRD_cb=
{
KEYBRD_Init,
KEYBRD_Decode
};
/*
*******************************************************************************
* LOCAL CONSTANTS
*******************************************************************************
*/
static const uint8_t HID_KEYBRD_Codes[] = {
0, 0, 0, 0, 31, 50, 48, 33,
19, 34, 35, 36, 24, 37, 38, 39, /* 0x00 - 0x0F */
52, 51, 25, 26, 17, 20, 32, 21,
23, 49, 18, 47, 22, 46, 2, 3, /* 0x10 - 0x1F */
4, 5, 6, 7, 8, 9, 10, 11,
43, 110, 15, 16, 61, 12, 13, 27, /* 0x20 - 0x2F */
28, 29, 42, 40, 41, 1, 53, 54,
55, 30, 112, 113, 114, 115, 116, 117, /* 0x30 - 0x3F */
118, 119, 120, 121, 122, 123, 124, 125,
126, 75, 80, 85, 76, 81, 86, 89, /* 0x40 - 0x4F */
79, 84, 83, 90, 95, 100, 105, 106,
108, 93, 98, 103, 92, 97, 102, 91, /* 0x50 - 0x5F */
96, 101, 99, 104, 45, 129, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, /* 0x60 - 0x6F */
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, /* 0x70 - 0x7F */
0, 0, 0, 0, 0, 107, 0, 56,
0, 0, 0, 0, 0, 0, 0, 0, /* 0x80 - 0x8F */
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, /* 0x90 - 0x9F */
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, /* 0xA0 - 0xAF */
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, /* 0xB0 - 0xBF */
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, /* 0xC0 - 0xCF */
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, /* 0xD0 - 0xDF */
58, 44, 60, 127, 64, 57, 62, 128 /* 0xE0 - 0xE7 */
};
#ifdef QWERTY_KEYBOARD
static const int8_t HID_KEYBRD_Key[] = {
'\0', '`', '1', '2', '3', '4', '5', '6',
'7', '8', '9', '0', '-', '=', '\0', 127, // dpgeorge 127 used to be \r (it's backspace)
'\t', 'q', 'w', 'e', 'r', 't', 'y', 'u',
'i', 'o', 'p', '[', ']', '\\',
'\0', 'a', 's', 'd', 'f', 'g', 'h', 'j',
'k', 'l', ';', '\'', '\0', '\r', // dpgeorge \r used to be \n (it's enter)
'\0', '\0', 'z', 'x', 'c', 'v', 'b', 'n',
'm', ',', '.', '/', '\0', '\0',
'\0', '\0', '\0', ' ', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\r', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0',
'\0', '\0', '7', '4', '1',
'\0', '/', '8', '5', '2',
'0', '*', '9', '6', '3',
'.', '-', '+', '\0', '\n', '\0', '\0', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0'
};
static const int8_t HID_KEYBRD_ShiftKey[] = {
'\0', '~', '!', '@', '#', '$', '%', '^', '&', '*', '(', ')',
'_', '+', '\0', '\0', '\0', 'Q', 'W', 'E', 'R', 'T', 'Y', 'U',
'I', 'O', 'P', '{', '}', '|', '\0', 'A', 'S', 'D', 'F', 'G',
'H', 'J', 'K', 'L', ':', '"', '\0', '\r', '\0', '\0', 'Z', 'X', // dpgeorge \r used to be \n (it's enter)
'C', 'V', 'B', 'N', 'M', '<', '>', '?', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0'
};
static const int8_t HID_KEYBRD_CtrlKey[] = {
'\0', '~', '!', '@', '#', '$', '%', '^', '&', '*', '(', ')',
'_', '+', '\0', '\0', '\0', 'Q', 'W', 'E', 'R', 'T', 'Y', 'U',
'I', 'O', 'P', '{', '}', '|', '\0', 'A', 'S', 4, 'F', 'G',
'H', 'J', 'K', 'L', ':', '"', '\0', '\r', '\0', '\0', 'Z', 'X',
'C', 'V', 'B', 'N', 'M', '<', '>', '?', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0'
};
#else
static const int8_t HID_KEYBRD_Key[] = {
'\0', '`', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0',
'-', '=', '\0', '\r', '\t', 'a', 'z', 'e', 'r', 't', 'y', 'u',
'i', 'o', 'p', '[', ']', '\\', '\0', 'q', 's', 'd', 'f', 'g',
'h', 'j', 'k', 'l', 'm', '\0', '\0', '\n', '\0', '\0', 'w', 'x',
'c', 'v', 'b', 'n', ',', ';', ':', '!', '\0', '\0', '\0', '\0',
'\0', ' ', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\r', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '7', '4', '1','\0', '/',
'8', '5', '2', '0', '*', '9', '6', '3', '.', '-', '+', '\0',
'\n', '\0', '\0', '\0', '\0', '\0', '\0','\0', '\0', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0'
};
static const int8_t HID_KEYBRD_ShiftKey[] = {
'\0', '~', '!', '@', '#', '$', '%', '^', '&', '*', '(', ')', '_',
'+', '\0', '\0', '\0', 'A', 'Z', 'E', 'R', 'T', 'Y', 'U', 'I', 'O',
'P', '{', '}', '*', '\0', 'Q', 'S', 'D', 'F', 'G', 'H', 'J', 'K',
'L', 'M', '%', '\0', '\n', '\0', '\0', 'W', 'X', 'C', 'V', 'B', 'N',
'?', '.', '/', '\0', '\0', '\0','\0', '\0', '\0', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0'
};
#endif
/**
* @}
*/
/** @defgroup USBH_HID_KEYBD_Private_Functions
* @{
*/
/**
* @brief KEYBRD_Init.
* Initialize the keyboard function.
* @param None
* @retval None
*/
static void KEYBRD_Init (void)
{
/* Call User Init*/
USR_KEYBRD_Init();
}
/**
* @brief KEYBRD_ProcessData.
* The function is to decode the pressed keys.
* @param pbuf : Pointer to the HID IN report data buffer
* @retval None
*/
static void KEYBRD_Decode(uint8_t *pbuf)
{
static uint8_t shift;
static uint8_t ctrl;
static uint8_t keys[KBR_MAX_NBR_PRESSED];
static uint8_t keys_new[KBR_MAX_NBR_PRESSED];
static uint8_t keys_last[KBR_MAX_NBR_PRESSED];
static uint8_t key_newest;
static uint8_t nbr_keys;
static uint8_t nbr_keys_new;
static uint8_t nbr_keys_last;
uint8_t ix;
uint8_t jx;
uint8_t error;
uint8_t output;
nbr_keys = 0;
nbr_keys_new = 0;
nbr_keys_last = 0;
key_newest = 0x00;
/* Check if Shift key is pressed */
if ((pbuf[0] == KBD_LEFT_SHIFT) || (pbuf[0] == KBD_RIGHT_SHIFT)) {
shift = TRUE;
} else {
shift = FALSE;
}
/* Check if Ctrl key is pressed */
if ((pbuf[0] == KBD_LEFT_CTRL) || (pbuf[0] == KBD_RIGHT_CTRL)) {
ctrl = TRUE;
} else {
ctrl = FALSE;
}
error = FALSE;
/* Check for the value of pressed key */
for (ix = 2; ix < 2 + KBR_MAX_NBR_PRESSED; ix++) {
if ((pbuf[ix] == 0x01) ||
(pbuf[ix] == 0x02) ||
(pbuf[ix] == 0x03)) {
error = TRUE;
}
}
if (error == TRUE) {
return;
}
nbr_keys = 0;
nbr_keys_new = 0;
for (ix = 2; ix < 2 + KBR_MAX_NBR_PRESSED; ix++) {
if (pbuf[ix] != 0) {
keys[nbr_keys] = pbuf[ix];
nbr_keys++;
for (jx = 0; jx < nbr_keys_last; jx++) {
if (pbuf[ix] == keys_last[jx]) {
break;
}
}
if (jx == nbr_keys_last) {
keys_new[nbr_keys_new] = pbuf[ix];
nbr_keys_new++;
}
}
}
if (nbr_keys_new == 1) {
key_newest = keys_new[0];
if (ctrl == TRUE) {
output = HID_KEYBRD_CtrlKey[HID_KEYBRD_Codes[key_newest]];
} else if (shift == TRUE) {
output = HID_KEYBRD_ShiftKey[HID_KEYBRD_Codes[key_newest]];
} else {
output = HID_KEYBRD_Key[HID_KEYBRD_Codes[key_newest]];
}
/* call user process handle */
USR_KEYBRD_ProcessData(output);
} else {
key_newest = 0x00;
}
nbr_keys_last = nbr_keys;
for (ix = 0; ix < KBR_MAX_NBR_PRESSED; ix++) {
keys_last[ix] = keys[ix];
}
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/