MacroRat / MouseCode

Mouse code for the MacroRat

Dependencies:   ITG3200 QEI

mbed-dev/targets/TARGET_NUVOTON/TARGET_NUC472/device/StdDriver/nuc472_ps2.c@46:b156ef445742, 2017-06-03 (annotated)

Committer:
sahilmgandhi
Date:
Sat Jun 03 00:22:44 2017 +0000
Revision:
46:b156ef445742
Parent:
18:6a4db94011d3 
Final code for internal battlebot competition.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
sahilmgandhi 18:6a4db94011d3 1 /******************************************************************************
sahilmgandhi 18:6a4db94011d3 2 * @file ps2.c
sahilmgandhi 18:6a4db94011d3 3 * @version V1.00
sahilmgandhi 18:6a4db94011d3 4 * $Revision: 5 $
sahilmgandhi 18:6a4db94011d3 5 * $Date: 14/10/03 11:59a $
sahilmgandhi 18:6a4db94011d3 6 * @brief NUC472/NUC442 PS2 driver source file
sahilmgandhi 18:6a4db94011d3 7 *
sahilmgandhi 18:6a4db94011d3 8 * @note
sahilmgandhi 18:6a4db94011d3 9 * Copyright (C) 2013 Nuvoton Technology Corp. All rights reserved.
sahilmgandhi 18:6a4db94011d3 10 *****************************************************************************/
sahilmgandhi 18:6a4db94011d3 11
sahilmgandhi 18:6a4db94011d3 12 #include <stdio.h>
sahilmgandhi 18:6a4db94011d3 13 #include "NUC472_442.h"
sahilmgandhi 18:6a4db94011d3 14
sahilmgandhi 18:6a4db94011d3 15 /*---------------------------------------------------------------------------------------------------------*/
sahilmgandhi 18:6a4db94011d3 16 /* Includes of local headers */
sahilmgandhi 18:6a4db94011d3 17 /*---------------------------------------------------------------------------------------------------------*/
sahilmgandhi 18:6a4db94011d3 18 //#include "ps2.h"
sahilmgandhi 18:6a4db94011d3 19
sahilmgandhi 18:6a4db94011d3 20
sahilmgandhi 18:6a4db94011d3 21 /** @addtogroup NUC472_442_Device_Driver NUC472/NUC442 Device Driver
sahilmgandhi 18:6a4db94011d3 22 @{
sahilmgandhi 18:6a4db94011d3 23 */
sahilmgandhi 18:6a4db94011d3 24
sahilmgandhi 18:6a4db94011d3 25 /** @addtogroup NUC472_442_PS2_Driver PS2 Driver
sahilmgandhi 18:6a4db94011d3 26 @{
sahilmgandhi 18:6a4db94011d3 27 */
sahilmgandhi 18:6a4db94011d3 28
sahilmgandhi 18:6a4db94011d3 29
sahilmgandhi 18:6a4db94011d3 30 /** @addtogroup NUC472_442_PS2_EXPORTED_FUNCTIONS PS2 Exported Functions
sahilmgandhi 18:6a4db94011d3 31 @{
sahilmgandhi 18:6a4db94011d3 32 */
sahilmgandhi 18:6a4db94011d3 33
sahilmgandhi 18:6a4db94011d3 34
sahilmgandhi 18:6a4db94011d3 35 /**
sahilmgandhi 18:6a4db94011d3 36 * @brief The function is used to enable PS2 specified interrupt.
sahilmgandhi 18:6a4db94011d3 37 *
sahilmgandhi 18:6a4db94011d3 38 * @param[in] u32Mask The specified interrupt of PS2 module:
sahilmgandhi 18:6a4db94011d3 39 * - \ref PS2_CTL_TXIEN_Msk : PS2 Tx interrupt
sahilmgandhi 18:6a4db94011d3 40 * - \ref PS2_CTL_RXIEN_Msk : PS2 Rx interrupt
sahilmgandhi 18:6a4db94011d3 41 *
sahilmgandhi 18:6a4db94011d3 42 * @return None
sahilmgandhi 18:6a4db94011d3 43 */
sahilmgandhi 18:6a4db94011d3 44 void PS2_EnableInt(uint32_t u32Mask)
sahilmgandhi 18:6a4db94011d3 45 {
sahilmgandhi 18:6a4db94011d3 46 PS2->CTL |= u32Mask;
sahilmgandhi 18:6a4db94011d3 47 }
sahilmgandhi 18:6a4db94011d3 48
sahilmgandhi 18:6a4db94011d3 49 /**
sahilmgandhi 18:6a4db94011d3 50 * @brief The function is used to disable PS2 specified interrupt.
sahilmgandhi 18:6a4db94011d3 51 *
sahilmgandhi 18:6a4db94011d3 52 * @param[in] u32Mask The specified interrupt of PS2 module:
sahilmgandhi 18:6a4db94011d3 53 * - \ref PS2_CTL_TXIEN_Msk : PS2 Tx interrupt
sahilmgandhi 18:6a4db94011d3 54 * - \ref PS2_CTL_RXIEN_Msk : PS2 Rx interrupt
sahilmgandhi 18:6a4db94011d3 55 *
sahilmgandhi 18:6a4db94011d3 56 * @return None
sahilmgandhi 18:6a4db94011d3 57 */
sahilmgandhi 18:6a4db94011d3 58 void PS2_DisableInt(uint32_t u32Mask)
sahilmgandhi 18:6a4db94011d3 59 {
sahilmgandhi 18:6a4db94011d3 60 PS2->CTL &= ~u32Mask;
sahilmgandhi 18:6a4db94011d3 61 }
sahilmgandhi 18:6a4db94011d3 62
sahilmgandhi 18:6a4db94011d3 63 /**
sahilmgandhi 18:6a4db94011d3 64 * @brief This function use to enable PS2 function and set one byte per trnasfer.
sahilmgandhi 18:6a4db94011d3 65 *
sahilmgandhi 18:6a4db94011d3 66 * @param None
sahilmgandhi 18:6a4db94011d3 67 *
sahilmgandhi 18:6a4db94011d3 68 * @return None
sahilmgandhi 18:6a4db94011d3 69 */
sahilmgandhi 18:6a4db94011d3 70 void PS2_Open(void)
sahilmgandhi 18:6a4db94011d3 71 {
sahilmgandhi 18:6a4db94011d3 72 /* Reset PS2 device */
sahilmgandhi 18:6a4db94011d3 73 SYS->IPRST1 |= SYS_IPRST1_PS2RST_Msk;
sahilmgandhi 18:6a4db94011d3 74 SYS->IPRST1 &= ~SYS_IPRST1_PS2RST_Msk;
sahilmgandhi 18:6a4db94011d3 75
sahilmgandhi 18:6a4db94011d3 76 /* Enable PS2 module */
sahilmgandhi 18:6a4db94011d3 77 PS2->CTL |= PS2_CTL_PS2EN_Msk;
sahilmgandhi 18:6a4db94011d3 78
sahilmgandhi 18:6a4db94011d3 79 /* Set One byte per trnasfer */
sahilmgandhi 18:6a4db94011d3 80 PS2->CTL &= ~PS2_CTL_TXFDEPTH_Msk;
sahilmgandhi 18:6a4db94011d3 81
sahilmgandhi 18:6a4db94011d3 82 /* Clear Tx FIFO */
sahilmgandhi 18:6a4db94011d3 83 PS2->CTL |= PS2_CTL_CLRFIFO_Msk;
sahilmgandhi 18:6a4db94011d3 84 PS2->CTL &= (~PS2_CTL_CLRFIFO_Msk);
sahilmgandhi 18:6a4db94011d3 85 }
sahilmgandhi 18:6a4db94011d3 86
sahilmgandhi 18:6a4db94011d3 87 /**
sahilmgandhi 18:6a4db94011d3 88 * @brief This function use to disable PS2 function.
sahilmgandhi 18:6a4db94011d3 89 *
sahilmgandhi 18:6a4db94011d3 90 * @param None
sahilmgandhi 18:6a4db94011d3 91 *
sahilmgandhi 18:6a4db94011d3 92 * @return None
sahilmgandhi 18:6a4db94011d3 93 */
sahilmgandhi 18:6a4db94011d3 94 void PS2_Close(void)
sahilmgandhi 18:6a4db94011d3 95 {
sahilmgandhi 18:6a4db94011d3 96 /* Enable PS2 module */
sahilmgandhi 18:6a4db94011d3 97 PS2->CTL &= ~PS2_CTL_PS2EN_Msk;
sahilmgandhi 18:6a4db94011d3 98 }
sahilmgandhi 18:6a4db94011d3 99
sahilmgandhi 18:6a4db94011d3 100 /**
sahilmgandhi 18:6a4db94011d3 101 * @brief This function use to read PS2 Rx data.
sahilmgandhi 18:6a4db94011d3 102 *
sahilmgandhi 18:6a4db94011d3 103 * @param None
sahilmgandhi 18:6a4db94011d3 104 *
sahilmgandhi 18:6a4db94011d3 105 * @return Rx data
sahilmgandhi 18:6a4db94011d3 106 */
sahilmgandhi 18:6a4db94011d3 107 uint8_t PS2_Read(void)
sahilmgandhi 18:6a4db94011d3 108 {
sahilmgandhi 18:6a4db94011d3 109 return (uint8_t)(PS2->RXDAT & PS2_RXDAT_DAT_Msk);
sahilmgandhi 18:6a4db94011d3 110 }
sahilmgandhi 18:6a4db94011d3 111
sahilmgandhi 18:6a4db94011d3 112 /**
sahilmgandhi 18:6a4db94011d3 113 * @brief This function use to transmit PS2 data.
sahilmgandhi 18:6a4db94011d3 114 *
sahilmgandhi 18:6a4db94011d3 115 * @param[in] pu32Buf The buffer to send the data to PS2 transmission FIFO.
sahilmgandhi 18:6a4db94011d3 116 * @param[in] u32ByteCount The byte number of data.
sahilmgandhi 18:6a4db94011d3 117 *
sahilmgandhi 18:6a4db94011d3 118 * @return FALSE: transmit data time-out
sahilmgandhi 18:6a4db94011d3 119 * TRUE: transmit data successful
sahilmgandhi 18:6a4db94011d3 120 */
sahilmgandhi 18:6a4db94011d3 121 int32_t PS2_Write(uint32_t *pu32Buf, uint32_t u32ByteCount)
sahilmgandhi 18:6a4db94011d3 122 {
sahilmgandhi 18:6a4db94011d3 123 uint32_t u32TxFIFO_Depth = 16;
sahilmgandhi 18:6a4db94011d3 124 uint32_t u32delayno, txcnt, remainder;
sahilmgandhi 18:6a4db94011d3 125 uint8_t i=0;
sahilmgandhi 18:6a4db94011d3 126
sahilmgandhi 18:6a4db94011d3 127 txcnt = u32ByteCount / u32TxFIFO_Depth;
sahilmgandhi 18:6a4db94011d3 128
sahilmgandhi 18:6a4db94011d3 129 remainder = u32ByteCount % u32TxFIFO_Depth;
sahilmgandhi 18:6a4db94011d3 130 if(remainder) txcnt++;
sahilmgandhi 18:6a4db94011d3 131
sahilmgandhi 18:6a4db94011d3 132 u32delayno = 0;
sahilmgandhi 18:6a4db94011d3 133 while (!(PS2->STATUS & PS2_STATUS_TXEMPTY_Msk)) {
sahilmgandhi 18:6a4db94011d3 134 u32delayno++;
sahilmgandhi 18:6a4db94011d3 135 if (u32delayno >= 0xF0000000)
sahilmgandhi 18:6a4db94011d3 136 return FALSE; // Time Out
sahilmgandhi 18:6a4db94011d3 137 }
sahilmgandhi 18:6a4db94011d3 138
sahilmgandhi 18:6a4db94011d3 139 if(u32ByteCount >= u32TxFIFO_Depth)//Tx fifo is 16 bytes
sahilmgandhi 18:6a4db94011d3 140 PS2_SET_TX_BYTE_CNT(u32TxFIFO_Depth);
sahilmgandhi 18:6a4db94011d3 141
sahilmgandhi 18:6a4db94011d3 142 do {
sahilmgandhi 18:6a4db94011d3 143 u32delayno = 0;
sahilmgandhi 18:6a4db94011d3 144 while (!(PS2->STATUS & PS2_STATUS_TXEMPTY_Msk)) {
sahilmgandhi 18:6a4db94011d3 145 u32delayno++;
sahilmgandhi 18:6a4db94011d3 146 if(u32delayno >= 0xF0000000)
sahilmgandhi 18:6a4db94011d3 147 return FALSE; // Time Out
sahilmgandhi 18:6a4db94011d3 148 }
sahilmgandhi 18:6a4db94011d3 149
sahilmgandhi 18:6a4db94011d3 150 if((txcnt == 1) && (remainder != 0))
sahilmgandhi 18:6a4db94011d3 151 PS2_SET_TX_BYTE_CNT(u32ByteCount);
sahilmgandhi 18:6a4db94011d3 152
sahilmgandhi 18:6a4db94011d3 153 PS2->TXDAT0 = pu32Buf[i];
sahilmgandhi 18:6a4db94011d3 154 PS2->TXDAT1 = pu32Buf[i+1];
sahilmgandhi 18:6a4db94011d3 155 PS2->TXDAT2 = pu32Buf[i+2];
sahilmgandhi 18:6a4db94011d3 156 PS2->TXDAT3 = pu32Buf[i+3];
sahilmgandhi 18:6a4db94011d3 157
sahilmgandhi 18:6a4db94011d3 158 i = i + 4;
sahilmgandhi 18:6a4db94011d3 159
sahilmgandhi 18:6a4db94011d3 160 } while(--txcnt);
sahilmgandhi 18:6a4db94011d3 161
sahilmgandhi 18:6a4db94011d3 162 u32delayno = 0;
sahilmgandhi 18:6a4db94011d3 163 while(!(PS2->STATUS & PS2_STATUS_TXEMPTY_Msk)) {
sahilmgandhi 18:6a4db94011d3 164 u32delayno++;
sahilmgandhi 18:6a4db94011d3 165 if(u32delayno >= 0xF0000000)
sahilmgandhi 18:6a4db94011d3 166 return FALSE; // Time Out
sahilmgandhi 18:6a4db94011d3 167 }
sahilmgandhi 18:6a4db94011d3 168
sahilmgandhi 18:6a4db94011d3 169 return TRUE;
sahilmgandhi 18:6a4db94011d3 170
sahilmgandhi 18:6a4db94011d3 171 }
sahilmgandhi 18:6a4db94011d3 172
sahilmgandhi 18:6a4db94011d3 173
sahilmgandhi 18:6a4db94011d3 174 /*@}*/ /* end of group NUC472_442_PS2_EXPORTED_FUNCTIONS */
sahilmgandhi 18:6a4db94011d3 175
sahilmgandhi 18:6a4db94011d3 176 /*@}*/ /* end of group NUC472_442_PS2_Driver */
sahilmgandhi 18:6a4db94011d3 177
sahilmgandhi 18:6a4db94011d3 178 /*@}*/ /* end of group NUC472_442_Device_Driver */
sahilmgandhi 18:6a4db94011d3 179
sahilmgandhi 18:6a4db94011d3 180 /*** (C) COPYRIGHT 2013 Nuvoton Technology Corp. ***/
sahilmgandhi 18:6a4db94011d3 181
sahilmgandhi 18:6a4db94011d3 182
sahilmgandhi 18:6a4db94011d3 183