MACROS.h

00001 /*
00002     Copyright (c) 2010 Andy Kirkham
00003  
00004     Permission is hereby granted, free of charge, to any person obtaining a copy
00005     of this software and associated documentation files (the "Software"), to deal
00006     in the Software without restriction, including without limitation the rights
00007     to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
00008     copies of the Software, and to permit persons to whom the Software is
00009     furnished to do so, subject to the following conditions:
00010  
00011     The above copyright notice and this permission notice shall be included in
00012     all copies or substantial portions of the Software.
00013  
00014     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
00015     IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
00016     FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
00017     AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
00018     LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00019     OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
00020     THE SOFTWARE.
00021 */
00022 
00023 #ifndef MODSERIAL_MACROS_H
00024 #define MODSERIAL_MACROS_H
00025 
00026 #define MODSERIAL_RBR  0x00
00027 #define MODSERIAL_THR  0x00
00028 #define MODSERIAL_DLL  0x00
00029 #define MODSERIAL_IER  0x04
00030 #define MODSERIAL_DML  0x04
00031 #define MODSERIAL_IIR  0x08
00032 #define MODSERIAL_FCR  0x08
00033 #define MODSERIAL_LCR  0x0C
00034 #define MODSERIAL_LSR  0x14
00035 #define MODSERIAL_SCR  0x1C
00036 #define MODSERIAL_ACR  0x20
00037 #define MODSERIAL_ICR  0x24
00038 #define MODSERIAL_FDR  0x28
00039 #define MODSERIAL_TER  0x30
00040 
00041 #define MODSERIAL_LSR_RDR  (1UL << 0)
00042 #define MODSERIAL_LSR_OE   (1UL << 1)
00043 #define MODSERIAL_LSR_PE   (1UL << 2)
00044 #define MODSERIAL_LSR_FE   (1UL << 3)
00045 #define MODSERIAL_LSR_BR   (1UL << 4)
00046 #define MODSERIAL_LSR_THRE (1UL << 5)
00047 #define MODSERIAL_LSR_TEMT (1UL << 6)
00048 #define MODSERIAL_LSR_RXFE (1UL << 7)
00049 
00050 #define MODSERIAL_FIFO_ENABLE   1
00051 #define MODSERIAL_FIFO_RX_RESET 2
00052 #define MODSERIAL_FIFO_TX_RESET 4
00053 
00054 #define _RBR    *((char *)_base+MODSERIAL_RBR)
00055 #define _THR    *((char *)_base+MODSERIAL_THR)
00056 #define _IIR    *((char *)_base+MODSERIAL_IIR)
00057 #define _IER    *((char *)_base+MODSERIAL_IER)
00058 #define _LSR    *((char *)_base+MODSERIAL_LSR)
00059 #define _FCR    *((char *)_base+MODSERIAL_FCR)
00060 
00061 #define MODSERIAL_TX_BUFFER_EMPTY (buffer_count[TxIrq]==0)
00062 #define MODSERIAL_RX_BUFFER_EMPTY (buffer_count[RxIrq]==0)
00063 #define MODSERIAL_TX_BUFFER_FULL  (buffer_count[TxIrq]==buffer_size[TxIrq])
00064 #define MODSERIAL_RX_BUFFER_FULL  (buffer_count[RxIrq]==buffer_size[RxIrq])
00065 
00066 #define MODSERIAL_THR_HAS_SPACE ((int)_LSR&MODSERIAL_LSR_THRE)
00067 #define MODSERIAL_TEMT_IS_EMPTY ((int)_LSR&MODSERIAL_LSR_TEMT)
00068 #define MODSERIAL_RBR_HAS_DATA  ((int)_LSR&MODSERIAL_LSR_RDR)
00069 
00070 #endif