mbed library sources. Supersedes mbed-src.
Fork of mbed-dev by
targets/TARGET_NUVOTON/TARGET_NUC472/device/StdDriver/nuc472_ps2.c@152:9a67f0b066fc, 2016-12-15 (annotated)
- Committer:
- <>
- Date:
- Thu Dec 15 11:48:27 2016 +0000
- Revision:
- 152:9a67f0b066fc
- Parent:
- 149:156823d33999
This updates the lib to the mbed lib v131
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
<> | 144:ef7eb2e8f9f7 | 1 | /****************************************************************************** |
<> | 144:ef7eb2e8f9f7 | 2 | * @file ps2.c |
<> | 144:ef7eb2e8f9f7 | 3 | * @version V1.00 |
<> | 144:ef7eb2e8f9f7 | 4 | * $Revision: 5 $ |
<> | 144:ef7eb2e8f9f7 | 5 | * $Date: 14/10/03 11:59a $ |
<> | 144:ef7eb2e8f9f7 | 6 | * @brief NUC472/NUC442 PS2 driver source file |
<> | 144:ef7eb2e8f9f7 | 7 | * |
<> | 144:ef7eb2e8f9f7 | 8 | * @note |
<> | 144:ef7eb2e8f9f7 | 9 | * Copyright (C) 2013 Nuvoton Technology Corp. All rights reserved. |
<> | 144:ef7eb2e8f9f7 | 10 | *****************************************************************************/ |
<> | 144:ef7eb2e8f9f7 | 11 | |
<> | 144:ef7eb2e8f9f7 | 12 | #include <stdio.h> |
<> | 144:ef7eb2e8f9f7 | 13 | #include "NUC472_442.h" |
<> | 144:ef7eb2e8f9f7 | 14 | |
<> | 144:ef7eb2e8f9f7 | 15 | /*---------------------------------------------------------------------------------------------------------*/ |
<> | 144:ef7eb2e8f9f7 | 16 | /* Includes of local headers */ |
<> | 144:ef7eb2e8f9f7 | 17 | /*---------------------------------------------------------------------------------------------------------*/ |
<> | 144:ef7eb2e8f9f7 | 18 | //#include "ps2.h" |
<> | 144:ef7eb2e8f9f7 | 19 | |
<> | 144:ef7eb2e8f9f7 | 20 | |
<> | 144:ef7eb2e8f9f7 | 21 | /** @addtogroup NUC472_442_Device_Driver NUC472/NUC442 Device Driver |
<> | 144:ef7eb2e8f9f7 | 22 | @{ |
<> | 144:ef7eb2e8f9f7 | 23 | */ |
<> | 144:ef7eb2e8f9f7 | 24 | |
<> | 144:ef7eb2e8f9f7 | 25 | /** @addtogroup NUC472_442_PS2_Driver PS2 Driver |
<> | 144:ef7eb2e8f9f7 | 26 | @{ |
<> | 144:ef7eb2e8f9f7 | 27 | */ |
<> | 144:ef7eb2e8f9f7 | 28 | |
<> | 144:ef7eb2e8f9f7 | 29 | |
<> | 144:ef7eb2e8f9f7 | 30 | /** @addtogroup NUC472_442_PS2_EXPORTED_FUNCTIONS PS2 Exported Functions |
<> | 144:ef7eb2e8f9f7 | 31 | @{ |
<> | 144:ef7eb2e8f9f7 | 32 | */ |
<> | 144:ef7eb2e8f9f7 | 33 | |
<> | 144:ef7eb2e8f9f7 | 34 | |
<> | 144:ef7eb2e8f9f7 | 35 | /** |
<> | 144:ef7eb2e8f9f7 | 36 | * @brief The function is used to enable PS2 specified interrupt. |
<> | 144:ef7eb2e8f9f7 | 37 | * |
<> | 144:ef7eb2e8f9f7 | 38 | * @param[in] u32Mask The specified interrupt of PS2 module: |
<> | 144:ef7eb2e8f9f7 | 39 | * - \ref PS2_CTL_TXIEN_Msk : PS2 Tx interrupt |
<> | 144:ef7eb2e8f9f7 | 40 | * - \ref PS2_CTL_RXIEN_Msk : PS2 Rx interrupt |
<> | 144:ef7eb2e8f9f7 | 41 | * |
<> | 144:ef7eb2e8f9f7 | 42 | * @return None |
<> | 144:ef7eb2e8f9f7 | 43 | */ |
<> | 144:ef7eb2e8f9f7 | 44 | void PS2_EnableInt(uint32_t u32Mask) |
<> | 144:ef7eb2e8f9f7 | 45 | { |
<> | 144:ef7eb2e8f9f7 | 46 | PS2->CTL |= u32Mask; |
<> | 144:ef7eb2e8f9f7 | 47 | } |
<> | 144:ef7eb2e8f9f7 | 48 | |
<> | 144:ef7eb2e8f9f7 | 49 | /** |
<> | 144:ef7eb2e8f9f7 | 50 | * @brief The function is used to disable PS2 specified interrupt. |
<> | 144:ef7eb2e8f9f7 | 51 | * |
<> | 144:ef7eb2e8f9f7 | 52 | * @param[in] u32Mask The specified interrupt of PS2 module: |
<> | 144:ef7eb2e8f9f7 | 53 | * - \ref PS2_CTL_TXIEN_Msk : PS2 Tx interrupt |
<> | 144:ef7eb2e8f9f7 | 54 | * - \ref PS2_CTL_RXIEN_Msk : PS2 Rx interrupt |
<> | 144:ef7eb2e8f9f7 | 55 | * |
<> | 144:ef7eb2e8f9f7 | 56 | * @return None |
<> | 144:ef7eb2e8f9f7 | 57 | */ |
<> | 144:ef7eb2e8f9f7 | 58 | void PS2_DisableInt(uint32_t u32Mask) |
<> | 144:ef7eb2e8f9f7 | 59 | { |
<> | 144:ef7eb2e8f9f7 | 60 | PS2->CTL &= ~u32Mask; |
<> | 144:ef7eb2e8f9f7 | 61 | } |
<> | 144:ef7eb2e8f9f7 | 62 | |
<> | 144:ef7eb2e8f9f7 | 63 | /** |
<> | 144:ef7eb2e8f9f7 | 64 | * @brief This function use to enable PS2 function and set one byte per trnasfer. |
<> | 144:ef7eb2e8f9f7 | 65 | * |
<> | 144:ef7eb2e8f9f7 | 66 | * @param None |
<> | 144:ef7eb2e8f9f7 | 67 | * |
<> | 144:ef7eb2e8f9f7 | 68 | * @return None |
<> | 144:ef7eb2e8f9f7 | 69 | */ |
<> | 144:ef7eb2e8f9f7 | 70 | void PS2_Open(void) |
<> | 144:ef7eb2e8f9f7 | 71 | { |
<> | 144:ef7eb2e8f9f7 | 72 | /* Reset PS2 device */ |
<> | 144:ef7eb2e8f9f7 | 73 | SYS->IPRST1 |= SYS_IPRST1_PS2RST_Msk; |
<> | 144:ef7eb2e8f9f7 | 74 | SYS->IPRST1 &= ~SYS_IPRST1_PS2RST_Msk; |
<> | 144:ef7eb2e8f9f7 | 75 | |
<> | 144:ef7eb2e8f9f7 | 76 | /* Enable PS2 module */ |
<> | 144:ef7eb2e8f9f7 | 77 | PS2->CTL |= PS2_CTL_PS2EN_Msk; |
<> | 144:ef7eb2e8f9f7 | 78 | |
<> | 144:ef7eb2e8f9f7 | 79 | /* Set One byte per trnasfer */ |
<> | 144:ef7eb2e8f9f7 | 80 | PS2->CTL &= ~PS2_CTL_TXFDEPTH_Msk; |
<> | 144:ef7eb2e8f9f7 | 81 | |
<> | 144:ef7eb2e8f9f7 | 82 | /* Clear Tx FIFO */ |
<> | 144:ef7eb2e8f9f7 | 83 | PS2->CTL |= PS2_CTL_CLRFIFO_Msk; |
<> | 144:ef7eb2e8f9f7 | 84 | PS2->CTL &= (~PS2_CTL_CLRFIFO_Msk); |
<> | 144:ef7eb2e8f9f7 | 85 | } |
<> | 144:ef7eb2e8f9f7 | 86 | |
<> | 144:ef7eb2e8f9f7 | 87 | /** |
<> | 144:ef7eb2e8f9f7 | 88 | * @brief This function use to disable PS2 function. |
<> | 144:ef7eb2e8f9f7 | 89 | * |
<> | 144:ef7eb2e8f9f7 | 90 | * @param None |
<> | 144:ef7eb2e8f9f7 | 91 | * |
<> | 144:ef7eb2e8f9f7 | 92 | * @return None |
<> | 144:ef7eb2e8f9f7 | 93 | */ |
<> | 144:ef7eb2e8f9f7 | 94 | void PS2_Close(void) |
<> | 144:ef7eb2e8f9f7 | 95 | { |
<> | 144:ef7eb2e8f9f7 | 96 | /* Enable PS2 module */ |
<> | 144:ef7eb2e8f9f7 | 97 | PS2->CTL &= ~PS2_CTL_PS2EN_Msk; |
<> | 144:ef7eb2e8f9f7 | 98 | } |
<> | 144:ef7eb2e8f9f7 | 99 | |
<> | 144:ef7eb2e8f9f7 | 100 | /** |
<> | 144:ef7eb2e8f9f7 | 101 | * @brief This function use to read PS2 Rx data. |
<> | 144:ef7eb2e8f9f7 | 102 | * |
<> | 144:ef7eb2e8f9f7 | 103 | * @param None |
<> | 144:ef7eb2e8f9f7 | 104 | * |
<> | 144:ef7eb2e8f9f7 | 105 | * @return Rx data |
<> | 144:ef7eb2e8f9f7 | 106 | */ |
<> | 144:ef7eb2e8f9f7 | 107 | uint8_t PS2_Read(void) |
<> | 144:ef7eb2e8f9f7 | 108 | { |
<> | 144:ef7eb2e8f9f7 | 109 | return (uint8_t)(PS2->RXDAT & PS2_RXDAT_DAT_Msk); |
<> | 144:ef7eb2e8f9f7 | 110 | } |
<> | 144:ef7eb2e8f9f7 | 111 | |
<> | 144:ef7eb2e8f9f7 | 112 | /** |
<> | 144:ef7eb2e8f9f7 | 113 | * @brief This function use to transmit PS2 data. |
<> | 144:ef7eb2e8f9f7 | 114 | * |
<> | 144:ef7eb2e8f9f7 | 115 | * @param[in] pu32Buf The buffer to send the data to PS2 transmission FIFO. |
<> | 144:ef7eb2e8f9f7 | 116 | * @param[in] u32ByteCount The byte number of data. |
<> | 144:ef7eb2e8f9f7 | 117 | * |
<> | 144:ef7eb2e8f9f7 | 118 | * @return FALSE: transmit data time-out |
<> | 144:ef7eb2e8f9f7 | 119 | * TRUE: transmit data successful |
<> | 144:ef7eb2e8f9f7 | 120 | */ |
<> | 144:ef7eb2e8f9f7 | 121 | int32_t PS2_Write(uint32_t *pu32Buf, uint32_t u32ByteCount) |
<> | 144:ef7eb2e8f9f7 | 122 | { |
<> | 144:ef7eb2e8f9f7 | 123 | uint32_t u32TxFIFO_Depth = 16; |
<> | 144:ef7eb2e8f9f7 | 124 | uint32_t u32delayno, txcnt, remainder; |
<> | 144:ef7eb2e8f9f7 | 125 | uint8_t i=0; |
<> | 144:ef7eb2e8f9f7 | 126 | |
<> | 144:ef7eb2e8f9f7 | 127 | txcnt = u32ByteCount / u32TxFIFO_Depth; |
<> | 144:ef7eb2e8f9f7 | 128 | |
<> | 144:ef7eb2e8f9f7 | 129 | remainder = u32ByteCount % u32TxFIFO_Depth; |
<> | 144:ef7eb2e8f9f7 | 130 | if(remainder) txcnt++; |
<> | 144:ef7eb2e8f9f7 | 131 | |
<> | 144:ef7eb2e8f9f7 | 132 | u32delayno = 0; |
<> | 144:ef7eb2e8f9f7 | 133 | while (!(PS2->STATUS & PS2_STATUS_TXEMPTY_Msk)) { |
<> | 144:ef7eb2e8f9f7 | 134 | u32delayno++; |
<> | 144:ef7eb2e8f9f7 | 135 | if (u32delayno >= 0xF0000000) |
<> | 144:ef7eb2e8f9f7 | 136 | return FALSE; // Time Out |
<> | 144:ef7eb2e8f9f7 | 137 | } |
<> | 144:ef7eb2e8f9f7 | 138 | |
<> | 144:ef7eb2e8f9f7 | 139 | if(u32ByteCount >= u32TxFIFO_Depth)//Tx fifo is 16 bytes |
<> | 144:ef7eb2e8f9f7 | 140 | PS2_SET_TX_BYTE_CNT(u32TxFIFO_Depth); |
<> | 144:ef7eb2e8f9f7 | 141 | |
<> | 144:ef7eb2e8f9f7 | 142 | do { |
<> | 144:ef7eb2e8f9f7 | 143 | u32delayno = 0; |
<> | 144:ef7eb2e8f9f7 | 144 | while (!(PS2->STATUS & PS2_STATUS_TXEMPTY_Msk)) { |
<> | 144:ef7eb2e8f9f7 | 145 | u32delayno++; |
<> | 144:ef7eb2e8f9f7 | 146 | if(u32delayno >= 0xF0000000) |
<> | 144:ef7eb2e8f9f7 | 147 | return FALSE; // Time Out |
<> | 144:ef7eb2e8f9f7 | 148 | } |
<> | 144:ef7eb2e8f9f7 | 149 | |
<> | 144:ef7eb2e8f9f7 | 150 | if((txcnt == 1) && (remainder != 0)) |
<> | 144:ef7eb2e8f9f7 | 151 | PS2_SET_TX_BYTE_CNT(u32ByteCount); |
<> | 144:ef7eb2e8f9f7 | 152 | |
<> | 144:ef7eb2e8f9f7 | 153 | PS2->TXDAT0 = pu32Buf[i]; |
<> | 144:ef7eb2e8f9f7 | 154 | PS2->TXDAT1 = pu32Buf[i+1]; |
<> | 144:ef7eb2e8f9f7 | 155 | PS2->TXDAT2 = pu32Buf[i+2]; |
<> | 144:ef7eb2e8f9f7 | 156 | PS2->TXDAT3 = pu32Buf[i+3]; |
<> | 144:ef7eb2e8f9f7 | 157 | |
<> | 144:ef7eb2e8f9f7 | 158 | i = i + 4; |
<> | 144:ef7eb2e8f9f7 | 159 | |
<> | 144:ef7eb2e8f9f7 | 160 | } while(--txcnt); |
<> | 144:ef7eb2e8f9f7 | 161 | |
<> | 144:ef7eb2e8f9f7 | 162 | u32delayno = 0; |
<> | 144:ef7eb2e8f9f7 | 163 | while(!(PS2->STATUS & PS2_STATUS_TXEMPTY_Msk)) { |
<> | 144:ef7eb2e8f9f7 | 164 | u32delayno++; |
<> | 144:ef7eb2e8f9f7 | 165 | if(u32delayno >= 0xF0000000) |
<> | 144:ef7eb2e8f9f7 | 166 | return FALSE; // Time Out |
<> | 144:ef7eb2e8f9f7 | 167 | } |
<> | 144:ef7eb2e8f9f7 | 168 | |
<> | 144:ef7eb2e8f9f7 | 169 | return TRUE; |
<> | 144:ef7eb2e8f9f7 | 170 | |
<> | 144:ef7eb2e8f9f7 | 171 | } |
<> | 144:ef7eb2e8f9f7 | 172 | |
<> | 144:ef7eb2e8f9f7 | 173 | |
<> | 144:ef7eb2e8f9f7 | 174 | /*@}*/ /* end of group NUC472_442_PS2_EXPORTED_FUNCTIONS */ |
<> | 144:ef7eb2e8f9f7 | 175 | |
<> | 144:ef7eb2e8f9f7 | 176 | /*@}*/ /* end of group NUC472_442_PS2_Driver */ |
<> | 144:ef7eb2e8f9f7 | 177 | |
<> | 144:ef7eb2e8f9f7 | 178 | /*@}*/ /* end of group NUC472_442_Device_Driver */ |
<> | 144:ef7eb2e8f9f7 | 179 | |
<> | 144:ef7eb2e8f9f7 | 180 | /*** (C) COPYRIGHT 2013 Nuvoton Technology Corp. ***/ |
<> | 144:ef7eb2e8f9f7 | 181 | |
<> | 144:ef7eb2e8f9f7 | 182 | |
<> | 144:ef7eb2e8f9f7 | 183 |