ecos-v2_0-branch: packages/io/serial/current/src/mn10300/mn10300

annotate packages/io/serial/current/src/mn10300/mn10300_serial.c @ 62:7a6ac9edc838 ecos-sw-2000-01-24

Merge from eCos master repository on 2000-01-24-19:43:49-GMT

author	jlarmour
date	Mon, 24 Jan 2000 21:43:17 +0000
parents	5af43b635655
children	c38311975d4f

rev	line source
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1 //==========================================================================
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	2 //
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	3 // mn10300_serial.c
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	4 //
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	5 // Serial device driver for mn10300 on-chip serial devices
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	6 //
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	7 //==========================================================================
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	8 //####COPYRIGHTBEGIN####
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	9 //
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	10 // -------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	11 // The contents of this file are subject to the Cygnus eCos Public License
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	12 // Version 1.0 (the "License"); you may not use this file except in
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	13 // compliance with the License. You may obtain a copy of the License at
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	14 // http://sourceware.cygnus.com/ecos
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	15 //
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	16 // Software distributed under the License is distributed on an "AS IS"
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	17 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	18 // License for the specific language governing rights and limitations under
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	19 // the License.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	20 //
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	21 // The Original Code is eCos - Embedded Cygnus Operating System, released
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	22 // September 30, 1998.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	23 //
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	24 // The Initial Developer of the Original Code is Cygnus. Portions created
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	25 // by Cygnus are Copyright (C) 1998,1999 Cygnus Solutions. All Rights Reserved.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	26 // -------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	27 //
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	28 //####COPYRIGHTEND####
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	29 //==========================================================================
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	30 //#####DESCRIPTIONBEGIN####
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	31 //
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	32 // Author(s): nickg
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	33 // Contributors: nickg
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	34 // Date: 1999-02-25
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	35 // Purpose: MN10300 serial device driver
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	36 // Description: MN10300 serial device driver
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	37 //
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	38 //####DESCRIPTIONEND####
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	39 //
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	40 //==========================================================================
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	41
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	42 #include <pkgconf/hal.h>
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	43 #include <pkgconf/io_serial.h>
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	44 #include <cyg/hal/hal_io.h>
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	45
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	46 #include <cyg/io/io.h>
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	47 #include <cyg/io/devtab.h>
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	48 #include <cyg/io/serial.h>
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	49 #include <cyg/hal/hal_intr.h>
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	50
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	51 #ifdef CYGPKG_IO_SERIAL_MN10300
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	52
32 5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	53 #define CYG_HAL_MN10300_SERIAL_RX_FIFO
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	54
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	55 //-------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	56
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	57 extern void diag_printf(const char *fmt, ...);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	58
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	59 //-------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	60 // Forward definitions
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	61
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	62 static bool mn10300_serial_init(struct cyg_devtab_entry *tab);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	63 static bool mn10300_serial_putc(serial_channel *chan, unsigned char c);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	64 static Cyg_ErrNo mn10300_serial_lookup(struct cyg_devtab_entry **tab,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	65 struct cyg_devtab_entry *sub_tab,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	66 const char *name);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	67 static unsigned char mn10300_serial_getc(serial_channel *chan);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	68 static bool mn10300_serial_set_config(serial_channel chan, cyg_serial_info_t config);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	69 static void mn10300_serial_start_xmit(serial_channel *chan);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	70 static void mn10300_serial_stop_xmit(serial_channel *chan);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	71
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	72 #ifndef CYGPKG_IO_SERIAL_MN10300_POLLED_MODE
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	73 static cyg_uint32 mn10300_serial_rx_ISR(cyg_vector_t vector, cyg_addrword_t data);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	74 static cyg_uint32 mn10300_serial_tx_ISR(cyg_vector_t vector, cyg_addrword_t data);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	75 static void mn10300_serial_rx_DSR(cyg_vector_t vector, cyg_ucount32 count, cyg_addrword_t data);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	76 static void mn10300_serial_tx_DSR(cyg_vector_t vector, cyg_ucount32 count, cyg_addrword_t data);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	77 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	78
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	79 //-------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	80
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	81 #define BUFSIZE 128
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	82
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	83 //-------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	84 // MN10300 serial line control register values:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	85
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	86 // Offsets to serial control registers from base
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	87 #define SERIAL_CTR 0x0
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	88 #define SERIAL_ICR 0x4
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	89 #define SERIAL_TXB 0x8
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	90 #define SERIAL_RXB 0x9
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	91 #define SERIAL_STR 0xc
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	92 #define SERIAL_TIM 0xd
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	93
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	94 // Status register bits
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	95 #define SR_RBF 0x10
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	96 #define SR_TBF 0x20
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	97 #define SR_RXF 0x40
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	98 #define SR_TXF 0x80
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	99
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	100 // Control register bits
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	101 #define LCR_SB1 0x00
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	102 #define LCR_SB1_5 0x00
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	103 #define LCR_SB2 0x04
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	104 #define LCR_PN 0x00 // Parity mode - none
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	105 #define LCR_PS 0x40 // Forced "space" parity
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	106 #define LCR_PM 0x50 // Forced "mark" parity
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	107 #define LCR_PE 0x60 // Parity mode - even
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	108 #define LCR_PO 0x70 // Parity mode - odd
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	109 #define LCR_WL5 0x00 // not supported - use 7bit
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	110 #define LCR_WL6 0x00 // not supported - use 7bit
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	111 #define LCR_WL7 0x00 // 7 bit chars
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	112 #define LCR_WL8 0x80 // 8 bit chars
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	113 #define LCR_RXE 0x4000 // receive enable
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	114 #define LCR_TXE 0x8000 // transmit enable
30 641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	115
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	116 #if defined(CYG_HAL_MN10300_AM31)
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	117 #define LCR_TWE 0x0100 // interrupt enable (only on serial2/AM31)
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	118 #else
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	119 #define LCR_TWE 0x0000 // Bit does not exist in other variants
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	120 #endif
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	121
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	122 //-------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	123 // MN10300 timer registers:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	124
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	125 #undef TIMER_BR
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	126 #undef TIMER_MD
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	127 #define TIMER_MD 0x00
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	128 #define TIMER_BR 0x10
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	129
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	130 //-------------------------------------------------------------------------
30 641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	131 // Serial and timer base registers:
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	132
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	133 #if defined(CYG_HAL_MN10300_AM31)
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	134
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	135 #define SERIAL0_BASE 0x34000800
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	136 #define SERIAL1_BASE 0x34000810
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	137 #define SERIAL2_BASE 0x34000820
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	138
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	139 #define TIMER0_BASE 0x34001000
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	140 #define TIMER1_BASE 0x34001001
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	141 #define TIMER2_BASE 0x34001002
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	142
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	143 #define SERIAL0_TIMER_SELECT 0x0004 // timer 0
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	144 #define SERIAL1_TIMER_SELECT 0x0004 // timer 1
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	145 #define SERIAL2_TIMER_SELECT 0x0001 // timer 2
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	146
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	147 #ifdef CYG_HAL_MN10300_AM31_STDEVAL1
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	148 // The use of PORT3 to provide CTS/CTR is specific to
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	149 // the STDEVAL1 board only.
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	150 #define PORT3_MD 0x36008025
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	151 #endif
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	152
30 641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	153 #define ENABLE_TRANSMIT_INTERRUPT(mn10300_chan) \
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	154 CYG_MACRO_START \
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	155 if( mn10300_chan->is_serial2 ) \
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	156 cr \|= LCR_TWE; \
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	157 else \
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	158 cr \|= LCR_TXE; \
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	159 CYG_MACRO_END
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	160
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	161 #define DISABLE_TRANSMIT_INTERRUPT(mn10300_chan) \
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	162 CYG_MACRO_START \
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	163 if( mn10300_chan->is_serial2 ) \
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	164 cr &= ~LCR_TWE; \
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	165 else \
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	166 cr &= ~LCR_TXE; \
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	167 CYG_MACRO_END
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	168
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	169 #else
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	170
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	171 #error Unsupported MN10300 variant
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	172
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	173 #endif
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	174
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	175 //-------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	176 // Tables to map input values to hardware settings
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	177
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	178 static unsigned char select_word_length[] = {
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	179 LCR_WL5, // 5 bits / word (char)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	180 LCR_WL6,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	181 LCR_WL7,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	182 LCR_WL8
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	183 };
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	184
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	185 static unsigned char select_stop_bits[] = {
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	186 0,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	187 LCR_SB1, // 1 stop bit
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	188 LCR_SB1_5, // 1.5 stop bit
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	189 LCR_SB2 // 2 stop bits
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	190 };
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	191
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	192 static unsigned char select_parity[] = {
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	193 LCR_PN, // No parity
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	194 LCR_PE, // Even parity
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	195 LCR_PO, // Odd parity
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	196 LCR_PM, // Mark parity
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	197 LCR_PS, // Space parity
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	198 };
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	199
30 641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	200 #if defined(CYG_HAL_MN10300_AM31)
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	201
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	202 static unsigned short select_baud_01[] = {
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	203 0, // Unused
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	204 0, // 50
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	205 0, // 75
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	206 0, // 110
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	207 0, // 134.5
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	208 0, // 150
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	209 0, // 200
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	210 0, // 300
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	211 0, // 600
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	212 0, // 1200
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	213 0, // 1800
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	214 0, // 2400
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	215 0, // 3600
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	216 0, // 4800
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	217 0, // 7200
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	218 195, // 9600
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	219 130, // 14400
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	220 98, // 19200
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	221 48, // 38400
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	222 32, // 57600
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	223 16, // 115200
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	224 8, // 230400
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	225 };
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	226
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	227 // Serial 2 has its own timer register in addition to using timer 2 to
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	228 // supply the baud rate generator. Both of these must be proframmed to
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	229 // get the right baud rate. The following values come from Matsushita
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	230 // with some modifications from Cygmon.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	231 static struct
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	232 {
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	233 cyg_uint8 serial2_val;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	234 cyg_uint8 timer2_val;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	235 } select_baud_2[] = {
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	236 { 0, 0 }, // Unused
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	237 { 0, 0 }, // 50
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	238 { 0, 0 }, // 75
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	239 { 0, 0 }, // 110
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	240 { 0, 0 }, // 134.5
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	241 { 0, 0 }, // 150
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	242 { 0, 0 }, // 200
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	243 { 0, 0 }, // 300
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	244 { 126, 196 }, // 600
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	245 { 125, 98 }, // 1200
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	246 { 0, 0 }, // 1800
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	247 { 124, 49 }, // 2400
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	248 { 0, 0 }, // 3600
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	249 { 124, 24 }, // 4800
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	250 { 0, 0 }, // 7200
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	251 { 70, 21 }, // 9600
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	252 { 0, 0 }, // 14400
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	253 { 70, 10 }, // 19200
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	254 { 22, 16 }, // 38400
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	255 { 88, 2 }, // 57600
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	256 { 64, 1 }, // 115200
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	257 { 62, 0 }, // 230400
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	258 };
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	259
30 641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	260 #else
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	261
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	262 #error Unsupported MN10300 variant
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	263
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	264 #endif
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	265
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	266 //-------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	267 // Info for each serial device controlled
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	268
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	269 typedef struct mn10300_serial_info {
32 5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	270 CYG_ADDRWORD base;
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	271 CYG_ADDRWORD timer_base;
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	272 CYG_WORD timer_select;
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	273 CYG_WORD rx_int;
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	274 CYG_WORD tx_int;
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	275 cyg_bool is_serial2;
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	276 cyg_interrupt rx_interrupt;
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	277 cyg_interrupt tx_interrupt;
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	278 cyg_handle_t rx_interrupt_handle;
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	279 cyg_handle_t tx_interrupt_handle;
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	280 #ifdef CYG_HAL_MN10300_SERIAL_RX_FIFO
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	281 volatile cyg_int32 fifo_head;
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	282 volatile cyg_int32 fifo_tail;
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	283 volatile cyg_uint8 fifo[16];
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	284 #endif
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	285 } mn10300_serial_info;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	286
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	287 //-------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	288 // Callback functions exported by this driver
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	289
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	290 static SERIAL_FUNS(mn10300_serial_funs,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	291 mn10300_serial_putc,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	292 mn10300_serial_getc,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	293 mn10300_serial_set_config,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	294 mn10300_serial_start_xmit,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	295 mn10300_serial_stop_xmit
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	296 );
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	297
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	298 //-------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	299 // Hardware info for each serial line
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	300
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	301 #ifndef CYG_HAL_MN10300_STDEVAL1
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	302 #ifdef CYGPKG_IO_SERIAL_MN10300_SERIAL0
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	303 static mn10300_serial_info mn10300_serial_info0 = {
30 641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	304 SERIAL0_BASE,
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	305 TIMER0_BASE,
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	306 SERIAL0_TIMER_SELECT,
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	307 CYGNUM_HAL_INTERRUPT_SERIAL_0_RX,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	308 CYGNUM_HAL_INTERRUPT_SERIAL_0_TX,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	309 false
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	310 };
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	311 #if CYGNUM_IO_SERIAL_MN10300_SERIAL0_BUFSIZE > 0
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	312 static unsigned char mn10300_serial_out_buf0[CYGNUM_IO_SERIAL_MN10300_SERIAL0_BUFSIZE];
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	313 static unsigned char mn10300_serial_in_buf0[CYGNUM_IO_SERIAL_MN10300_SERIAL0_BUFSIZE];
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	314 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	315 #endif // CYGPKG_IO_SERIAL_MN10300_SERIAL0
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	316 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	317
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	318 #ifdef CYGPKG_IO_SERIAL_MN10300_SERIAL1
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	319 static mn10300_serial_info mn10300_serial_info1 = {
30 641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	320 SERIAL1_BASE,
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	321 TIMER1_BASE,
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	322 SERIAL1_TIMER_SELECT,
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	323 CYGNUM_HAL_INTERRUPT_SERIAL_1_RX,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	324 CYGNUM_HAL_INTERRUPT_SERIAL_1_TX,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	325 false
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	326 };
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	327 #if CYGNUM_IO_SERIAL_MN10300_SERIAL1_BUFSIZE > 0
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	328 static unsigned char mn10300_serial_out_buf1[CYGNUM_IO_SERIAL_MN10300_SERIAL1_BUFSIZE];
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	329 static unsigned char mn10300_serial_in_buf1[CYGNUM_IO_SERIAL_MN10300_SERIAL1_BUFSIZE];
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	330 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	331 #endif // CYGPKG_IO_SERIAL_MN10300_SERIAL1
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	332
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	333 #ifdef CYGPKG_IO_SERIAL_MN10300_SERIAL2
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	334 static mn10300_serial_info mn10300_serial_info2 = {
30 641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	335 SERIAL2_BASE,
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	336 TIMER2_BASE,
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	337 SERIAL2_TIMER_SELECT,
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	338 CYGNUM_HAL_INTERRUPT_SERIAL_2_RX,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	339 CYGNUM_HAL_INTERRUPT_SERIAL_2_TX,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	340 true
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	341 };
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	342 #if CYGNUM_IO_SERIAL_MN10300_SERIAL2_BUFSIZE > 0
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	343 static unsigned char mn10300_serial_out_buf2[CYGNUM_IO_SERIAL_MN10300_SERIAL2_BUFSIZE];
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	344 static unsigned char mn10300_serial_in_buf2[CYGNUM_IO_SERIAL_MN10300_SERIAL2_BUFSIZE];
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	345 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	346 #endif // CYGPKG_IO_SERIAL_MN10300_SERIAL2
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	347
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	348
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	349 //-------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	350 // Channel descriptions:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	351
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	352 #ifdef CYGPKG_IO_SERIAL_MN10300_POLLED_MODE
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	353 #define SIZEOF_BUF(_x_) 0
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	354 #else
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	355 #define SIZEOF_BUF(_x_) sizeof(_x_)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	356 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	357
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	358 #ifndef CYG_HAL_MN10300_STDEVAL1
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	359 #ifdef CYGPKG_IO_SERIAL_MN10300_SERIAL0
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	360 #if CYGNUM_IO_SERIAL_MN10300_SERIAL0_BUFSIZE > 0
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	361 static SERIAL_CHANNEL_USING_INTERRUPTS(mn10300_serial_channel0,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	362 mn10300_serial_funs,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	363 mn10300_serial_info0,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	364 CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_MN10300_SERIAL0_BAUD),
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	365 CYG_SERIAL_STOP_DEFAULT,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	366 CYG_SERIAL_PARITY_DEFAULT,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	367 CYG_SERIAL_WORD_LENGTH_DEFAULT,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	368 CYG_SERIAL_FLAGS_DEFAULT,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	369 &mn10300_serial_out_buf0[0],
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	370 SIZEOF_BUF(mn10300_serial_out_buf0),
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	371 &mn10300_serial_in_buf0[0],
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	372 SIZEOF_BUF(mn10300_serial_in_buf0)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	373 );
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	374 #else
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	375 static SERIAL_CHANNEL(mn10300_serial_channel0,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	376 mn10300_serial_funs,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	377 mn10300_serial_info0,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	378 CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_MN10300_SERIAL0_BAUD),
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	379 CYG_SERIAL_STOP_DEFAULT,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	380 CYG_SERIAL_PARITY_DEFAULT,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	381 CYG_SERIAL_WORD_LENGTH_DEFAULT,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	382 CYG_SERIAL_FLAGS_DEFAULT
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	383 );
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	384 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	385 #endif // CYGPKG_IO_SERIAL_MN10300_SERIAL0
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	386 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	387
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	388 #ifdef CYGPKG_IO_SERIAL_MN10300_SERIAL1
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	389 #if CYGNUM_IO_SERIAL_MN10300_SERIAL1_BUFSIZE > 0
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	390 static SERIAL_CHANNEL_USING_INTERRUPTS(mn10300_serial_channel1,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	391 mn10300_serial_funs,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	392 mn10300_serial_info1,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	393 CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_MN10300_SERIAL1_BAUD),
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	394 CYG_SERIAL_STOP_DEFAULT,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	395 CYG_SERIAL_PARITY_DEFAULT,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	396 CYG_SERIAL_WORD_LENGTH_DEFAULT,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	397 CYG_SERIAL_FLAGS_DEFAULT,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	398 &mn10300_serial_out_buf1[0],
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	399 SIZEOF_BUF(mn10300_serial_out_buf1),
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	400 &mn10300_serial_in_buf1[0],
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	401 SIZEOF_BUF(mn10300_serial_in_buf1)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	402 );
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	403 #else
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	404 static SERIAL_CHANNEL(mn10300_serial_channel1,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	405 mn10300_serial_funs,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	406 mn10300_serial_info1,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	407 CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_MN10300_SERIAL1_BAUD),
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	408 CYG_SERIAL_STOP_DEFAULT,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	409 CYG_SERIAL_PARITY_DEFAULT,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	410 CYG_SERIAL_WORD_LENGTH_DEFAULT,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	411 CYG_SERIAL_FLAGS_DEFAULT
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	412 );
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	413 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	414 #endif // CYGPKG_IO_SERIAL_MN10300_SERIAL1
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	415
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	416 #ifdef CYGPKG_IO_SERIAL_MN10300_SERIAL2
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	417 #if CYGNUM_IO_SERIAL_MN10300_SERIAL2_BUFSIZE > 0
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	418 static SERIAL_CHANNEL_USING_INTERRUPTS(mn10300_serial_channel2,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	419 mn10300_serial_funs,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	420 mn10300_serial_info2,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	421 CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_MN10300_SERIAL2_BAUD),
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	422 CYG_SERIAL_STOP_DEFAULT,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	423 CYG_SERIAL_PARITY_DEFAULT,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	424 CYG_SERIAL_WORD_LENGTH_DEFAULT,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	425 CYG_SERIAL_FLAGS_DEFAULT,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	426 &mn10300_serial_out_buf2[0],
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	427 SIZEOF_BUF(mn10300_serial_out_buf2),
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	428 &mn10300_serial_in_buf2[0],
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	429 SIZEOF_BUF(mn10300_serial_in_buf2)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	430 );
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	431 #else
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	432 static SERIAL_CHANNEL(mn10300_serial_channel2,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	433 mn10300_serial_funs,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	434 mn10300_serial_info2,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	435 CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_MN10300_SERIAL2_BAUD),
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	436 CYG_SERIAL_STOP_DEFAULT,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	437 CYG_SERIAL_PARITY_DEFAULT,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	438 CYG_SERIAL_WORD_LENGTH_DEFAULT,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	439 CYG_SERIAL_FLAGS_DEFAULT
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	440 );
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	441 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	442 #endif // CYGPKG_IO_SERIAL_MN10300_SERIAL2
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	443
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	444 //-------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	445 // And finally, the device table entries:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	446
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	447 #ifndef CYG_HAL_MN10300_STDEVAL1
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	448 #ifdef CYGPKG_IO_SERIAL_MN10300_SERIAL0
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	449 // On the standard eval board serial0 is not connected. If enabled, it
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	450 // generates continuous frame error and overrun interrupts. Hence we do
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	451 // not touch it.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	452 DEVTAB_ENTRY(mn10300_serial_io0,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	453 CYGDAT_IO_SERIAL_MN10300_SERIAL0_NAME,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	454 0, // Does not depend on a lower level interface
62 7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 32 diff changeset	455 &cyg_io_serial_devio,
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	456 mn10300_serial_init,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	457 mn10300_serial_lookup, // Serial driver may need initializing
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	458 &mn10300_serial_channel0
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	459 );
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	460 #endif // CYGPKG_IO_SERIAL_MN10300_SERIAL0
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	461 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	462
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	463 #ifdef CYGPKG_IO_SERIAL_MN10300_SERIAL1
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	464 DEVTAB_ENTRY(mn10300_serial_io1,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	465 CYGDAT_IO_SERIAL_MN10300_SERIAL1_NAME,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	466 0, // Does not depend on a lower level interface
62 7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 32 diff changeset	467 &cyg_io_serial_devio,
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	468 mn10300_serial_init,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	469 mn10300_serial_lookup, // Serial driver may need initializing
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	470 &mn10300_serial_channel1
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	471 );
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	472 #endif // CYGPKG_IO_SERIAL_MN10300_SERIAL1
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	473
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	474 #ifdef CYGPKG_IO_SERIAL_MN10300_SERIAL2
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	475 DEVTAB_ENTRY(mn10300_serial_io2,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	476 CYGDAT_IO_SERIAL_MN10300_SERIAL2_NAME,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	477 0, // Does not depend on a lower level interface
62 7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 32 diff changeset	478 &cyg_io_serial_devio,
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	479 mn10300_serial_init,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	480 mn10300_serial_lookup, // Serial driver may need initializing
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	481 &mn10300_serial_channel2
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	482 );
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	483 #endif // CYGPKG_IO_SERIAL_MN10300_SERIAL2
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	484
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	485 //-------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	486 // Read the serial line's status register. Serial 2 has an 8 bit status
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	487 // register while serials 0 and 1 have 16 bit registers. This function
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	488 // uses the correct size access, but passes back a 16 bit quantity for
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	489 // both.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	490
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	491 static cyg_uint16 mn10300_read_sr( mn10300_serial_info *mn10300_chan )
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	492 {
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	493 cyg_uint16 sr = 0;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	494 if( mn10300_chan->is_serial2 )
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	495 {
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	496 cyg_uint8 sr8;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	497 HAL_READ_UINT8(mn10300_chan->base+SERIAL_STR, sr8);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	498 sr = sr8;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	499 }
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	500 else
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	501 {
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	502 HAL_READ_UINT16(mn10300_chan->base+SERIAL_STR, sr);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	503 }
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	504
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	505 return sr;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	506 }
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	507
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	508 //-------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	509
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	510 static bool
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	511 mn10300_serial_config_port(serial_channel chan, cyg_serial_info_t new_config, bool init)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	512 {
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	513 mn10300_serial_info mn10300_chan = (mn10300_serial_info )chan->dev_priv;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	514 cyg_uint16 cr = 0;
10 d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 4 diff changeset	515 cyg_uint16 sr;
30 641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	516
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	517 // wait for the device to become quiescent. This could take some time
10 d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 4 diff changeset	518 // if the device had been transmitting at a low baud rate.
d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 4 diff changeset	519 do {
d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 4 diff changeset	520 sr = mn10300_read_sr(mn10300_chan);
d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 4 diff changeset	521 } while (sr & (SR_RXF\|SR_TXF));
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	522
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	523 // Disable device entirely.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	524 HAL_WRITE_UINT16(mn10300_chan->base+SERIAL_CTR, 0);
10 d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 4 diff changeset	525
d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 4 diff changeset	526 // Set up the Interrupt Mode Register
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	527 HAL_WRITE_UINT8(mn10300_chan->base+SERIAL_ICR, 0);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	528
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	529 // Set up baud rate
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	530 if( mn10300_chan->is_serial2 )
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	531 {
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	532 // Serial 2 is a bit different from 0 and 1 in the way that the
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	533 // baud rate is controlled.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	534
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	535 cyg_uint8 baud_divisor = select_baud_2[new_config->baud].timer2_val;
30 641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	536
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	537 if (baud_divisor == 0)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	538 return false; // Invalid baud rate selected
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	539
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	540 HAL_WRITE_UINT8(mn10300_chan->timer_base+TIMER_BR, baud_divisor);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	541
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	542 HAL_WRITE_UINT8(mn10300_chan->timer_base+TIMER_MD, 0x80 );
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	543
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	544 baud_divisor = select_baud_2[new_config->baud].serial2_val;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	545
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	546 HAL_WRITE_UINT8(mn10300_chan->base+SERIAL_TIM, baud_divisor);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	547
30 641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	548 cr \|= mn10300_chan->timer_select;
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	549 }
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	550 else
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	551 {
30 641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	552 cyg_uint16 baud_divisor = select_baud_01[new_config->baud];
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	553 cyg_uint8 timer_mode = 0x80;
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	554
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	555 if (baud_divisor == 0)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	556 return false; // Invalid baud rate selected
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	557
30 641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	558
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	559 HAL_WRITE_UINT8(mn10300_chan->timer_base+TIMER_BR, baud_divisor);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	560
30 641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	561 HAL_WRITE_UINT8(mn10300_chan->timer_base+TIMER_MD, timer_mode );
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	562
30 641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	563 cr \|= mn10300_chan->timer_select;
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	564 }
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	565
30 641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	566 #ifdef PORT3_MD
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	567 HAL_WRITE_UINT8( PORT3_MD, 0x01 );
30 641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	568 #endif
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	569
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	570 // set up other config values:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	571
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	572 cr \|= select_word_length[new_config->word_length - CYGNUM_SERIAL_WORD_LENGTH_5];
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	573 cr \|= select_stop_bits[new_config->stop];
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	574 cr \|= select_parity[new_config->parity];
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	575
30 641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	576 cr \|= LCR_RXE \| LCR_TXE; // enable Rx and Tx
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	577
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	578 #ifdef CYG_HAL_MN10300_AM31
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	579 if( mn10300_chan->is_serial2 )
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	580 {
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	581 // AM31 has an extra TX interrupt enable bit for serial 2.
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	582 DISABLE_TRANSMIT_INTERRUPT(mn10300_chan);
4 1d7f19c9e4d1 Merge from eCos master repository on 1999-05-11-21:11:10-BST jlarmour parents: 2 diff changeset	583 }
30 641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	584 #endif
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	585
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	586 // Write CR into hardware
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	587 HAL_WRITE_UINT16(mn10300_chan->base+SERIAL_CTR, cr);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	588
30 641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	589 sr = mn10300_read_sr(mn10300_chan);
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	590
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	591 if (new_config != &chan->config) {
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	592 chan->config = *new_config;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	593 }
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	594 return true;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	595 }
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	596
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	597 //-------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	598 // Function to initialize the device. Called at bootstrap time.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	599
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	600 bool mn10300_serial_init(struct cyg_devtab_entry *tab)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	601 {
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	602 serial_channel chan = (serial_channel )tab->priv;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	603 mn10300_serial_info mn10300_chan = (mn10300_serial_info )chan->dev_priv;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	604
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	605 (chan->callbacks->serial_init)(chan); // Really only required for interrupt driven devices
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	606
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	607 #ifndef CYGPKG_IO_SERIAL_MN10300_POLLED_MODE
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	608 if (chan->out_cbuf.len != 0) {
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	609 // Install and enable the receive interrupt
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	610 cyg_drv_interrupt_create(mn10300_chan->rx_int,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	611 4, // Priority - what goes here?
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	612 (cyg_addrword_t)chan, // Data item passed to interrupt handler
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	613 mn10300_serial_rx_ISR,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	614 mn10300_serial_rx_DSR,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	615 &mn10300_chan->rx_interrupt_handle,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	616 &mn10300_chan->rx_interrupt);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	617 cyg_drv_interrupt_attach(mn10300_chan->rx_interrupt_handle);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	618 cyg_drv_interrupt_unmask(mn10300_chan->rx_int);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	619
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	620 // Install and enable the transmit interrupt
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	621 cyg_drv_interrupt_create(mn10300_chan->tx_int,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	622 4, // Priority - what goes here?
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	623 (cyg_addrword_t)chan, // Data item passed to interrupt handler
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	624 mn10300_serial_tx_ISR,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	625 mn10300_serial_tx_DSR,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	626 &mn10300_chan->tx_interrupt_handle,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	627 &mn10300_chan->tx_interrupt);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	628 cyg_drv_interrupt_attach(mn10300_chan->tx_interrupt_handle);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	629 cyg_drv_interrupt_mask(mn10300_chan->tx_int);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	630 }
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	631 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	632
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	633 mn10300_serial_config_port(chan, &chan->config, true);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	634
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	635 return true;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	636 }
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	637
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	638 //-------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	639 // This routine is called when the device is "looked" up (i.e. attached)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	640
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	641 static Cyg_ErrNo
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	642 mn10300_serial_lookup(struct cyg_devtab_entry **tab,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	643 struct cyg_devtab_entry *sub_tab,
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	644 const char *name)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	645 {
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	646 serial_channel chan = (serial_channel )(*tab)->priv;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	647 (chan->callbacks->serial_init)(chan); // Really only required for interrupt driven devices
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	648 return ENOERR;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	649 }
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	650
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	651 //-------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	652 // Return 'true' if character is sent to device
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	653
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	654 bool
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	655 mn10300_serial_putc(serial_channel *chan, unsigned char c)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	656 {
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	657 mn10300_serial_info mn10300_chan = (mn10300_serial_info )chan->dev_priv;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	658 cyg_uint8 sr = mn10300_read_sr( mn10300_chan);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	659
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	660 if( (sr & SR_TBF) == 0 )
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	661 {
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	662 HAL_WRITE_UINT8( mn10300_chan->base+SERIAL_TXB, c );
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	663
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	664 return true;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	665 }
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	666 else return false;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	667 }
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	668
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	669 //-------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	670
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	671 unsigned char
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	672 mn10300_serial_getc(serial_channel *chan)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	673 {
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	674 unsigned char c;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	675 mn10300_serial_info mn10300_chan = (mn10300_serial_info )chan->dev_priv;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	676 do
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	677 {
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	678 cyg_uint8 sr = mn10300_read_sr( mn10300_chan );
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	679
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	680 if( (sr & SR_RBF) != 0 )
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	681 {
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	682 HAL_READ_UINT8( mn10300_chan->base+SERIAL_RXB, c );
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	683
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	684 break;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	685 }
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	686
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	687 } while(1);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	688
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	689 return c;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	690 }
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	691
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	692 //-------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	693
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	694 bool
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	695 mn10300_serial_set_config(serial_channel chan, cyg_serial_info_t config)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	696 {
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	697 return mn10300_serial_config_port(chan, config, false);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	698 }
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	699
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	700 //-------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	701 // Enable the transmitter on the device
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	702
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	703 static void
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	704 mn10300_serial_start_xmit(serial_channel *chan)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	705 {
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	706 #ifndef CYGPKG_IO_SERIAL_MN10300_POLLED_MODE
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	707 mn10300_serial_info mn10300_chan = (mn10300_serial_info )chan->dev_priv;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	708 cyg_uint16 cr;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	709
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	710 HAL_READ_UINT16( mn10300_chan->base+SERIAL_CTR, cr );
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	711
30 641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	712 ENABLE_TRANSMIT_INTERRUPT(mn10300_chan);
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	713
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	714 HAL_WRITE_UINT16( mn10300_chan->base+SERIAL_CTR, cr );
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	715
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	716 cyg_drv_interrupt_unmask(mn10300_chan->tx_int);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	717
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	718 (chan->callbacks->xmt_char)(chan);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	719 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	720 }
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	721
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	722 //-------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	723 // Disable the transmitter on the device
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	724
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	725 static void
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	726 mn10300_serial_stop_xmit(serial_channel *chan)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	727 {
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	728 #ifndef CYGPKG_IO_SERIAL_MN10300_POLLED_MODE
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	729 mn10300_serial_info mn10300_chan = (mn10300_serial_info )chan->dev_priv;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	730 cyg_uint16 cr;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	731 cyg_uint16 sr;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	732
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	733 // Wait until the transmitter has actually stopped before turning it off.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	734
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	735 do
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	736 {
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	737 sr = mn10300_read_sr( mn10300_chan );
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	738
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	739 } while( sr & SR_TXF );
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	740
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	741 HAL_READ_UINT16( mn10300_chan->base+SERIAL_CTR, cr );
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	742
30 641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	743 DISABLE_TRANSMIT_INTERRUPT(mn10300_chan);
641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	744
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	745 HAL_WRITE_UINT16( mn10300_chan->base+SERIAL_CTR, cr );
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	746
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	747 cyg_drv_interrupt_mask(mn10300_chan->tx_int);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	748
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	749 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	750 }
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	751
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	752 //-------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	753 // Serial I/O - low level interrupt handlers (ISR)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	754
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	755 #ifndef CYGPKG_IO_SERIAL_MN10300_POLLED_MODE
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	756
32 5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	757 #ifdef CYG_HAL_MN10300_SERIAL_RX_FIFO
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	758
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	759 // This version of the RX ISR implements a simple receive FIFO. The
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	760 // MN10300 serial devices do not have hardware FIFOs (as found in
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	761 // 16550s for example), and it can be difficult at times to keep up
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	762 // with higher baud rates without overrunning. This ISR implements a
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	763 // software equivalent of the hardware FIFO, placing recieved
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	764 // characters into the FIFO as soon as they arrive. Whenever the DSR
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	765 // is run, it collects all the pending characters from the FIFO for
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	766 // delivery to the application. Neither the ISR or DSR disable
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	767 // interrupts, instead we rely on being able to write the head and
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	768 // tail pointers atomically, to implement lock-free synchronization.
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	769
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	770 static cyg_uint32
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	771 mn10300_serial_rx_ISR(cyg_vector_t vector, cyg_addrword_t data)
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	772 {
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	773 serial_channel chan = (serial_channel )data;
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	774 mn10300_serial_info mn10300_chan = (mn10300_serial_info )chan->dev_priv;
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	775 cyg_uint8 sr = mn10300_read_sr( mn10300_chan);
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	776
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	777 while( (sr & SR_RBF) != 0 )
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	778 {
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	779 register cyg_int32 head = mn10300_chan->fifo_head;
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	780 cyg_uint8 c;
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	781 int i;
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	782 HAL_READ_UINT8( mn10300_chan->base+SERIAL_RXB, c );
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	783
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	784 mn10300_chan->fifo[head++] = c;
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	785
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	786 if( head >= sizeof(mn10300_chan->fifo) )
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	787 head = 0;
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	788
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	789 mn10300_chan->fifo_head = head;
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	790
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	791 sr = mn10300_read_sr( mn10300_chan);
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	792
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	793 }
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	794
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	795 cyg_drv_interrupt_acknowledge(mn10300_chan->rx_int);
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	796
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	797 return CYG_ISR_CALL_DSR; // Cause DSR to be run
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	798 }
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	799
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	800 #else
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	801
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	802 static cyg_uint32
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	803 mn10300_serial_rx_ISR(cyg_vector_t vector, cyg_addrword_t data)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	804 {
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	805 serial_channel chan = (serial_channel )data;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	806 mn10300_serial_info mn10300_chan = (mn10300_serial_info )chan->dev_priv;
30 641b639be825 Merge from eCos master repository on 1999-08-16-22:01:37-BST jlarmour parents: 10 diff changeset	807
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	808 cyg_drv_interrupt_mask(mn10300_chan->rx_int);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	809 cyg_drv_interrupt_acknowledge(mn10300_chan->rx_int);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	810
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	811 return CYG_ISR_CALL_DSR; // Cause DSR to be run
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	812 }
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	813
32 5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	814 #endif
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	815
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	816 static cyg_uint32
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	817 mn10300_serial_tx_ISR(cyg_vector_t vector, cyg_addrword_t data)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	818 {
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	819 serial_channel chan = (serial_channel )data;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	820 mn10300_serial_info mn10300_chan = (mn10300_serial_info )chan->dev_priv;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	821
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	822 cyg_drv_interrupt_mask(mn10300_chan->tx_int);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	823 cyg_drv_interrupt_acknowledge(mn10300_chan->tx_int);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	824
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	825 return CYG_ISR_CALL_DSR; // Cause DSR to be run
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	826 }
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	827
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	828 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	829
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	830 //-------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	831 // Serial I/O - high level interrupt handler (DSR)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	832
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	833 #ifndef CYGPKG_IO_SERIAL_MN10300_POLLED_MODE
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	834
32 5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	835 #ifdef CYG_HAL_MN10300_SERIAL_RX_FIFO
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	836
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	837 static void
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	838 mn10300_serial_rx_DSR(cyg_vector_t vector, cyg_ucount32 count, cyg_addrword_t data)
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	839 {
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	840 serial_channel chan = (serial_channel )data;
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	841 mn10300_serial_info mn10300_chan = (mn10300_serial_info )chan->dev_priv;
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	842 register cyg_int32 head = mn10300_chan->fifo_head;
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	843 register cyg_int32 tail = mn10300_chan->fifo_tail;
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	844
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	845 while( head != tail )
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	846 {
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	847 cyg_uint8 c = mn10300_chan->fifo[tail++];
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	848
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	849 if( tail >= sizeof(mn10300_chan->fifo) ) tail = 0;
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	850
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	851 (chan->callbacks->rcv_char)(chan, c);
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	852 }
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	853
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	854 mn10300_chan->fifo_tail = tail;
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	855 }
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	856
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	857 #else
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	858
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	859 static void
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	860 mn10300_serial_rx_DSR(cyg_vector_t vector, cyg_ucount32 count, cyg_addrword_t data)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	861 {
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	862 serial_channel chan = (serial_channel )data;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	863 mn10300_serial_info mn10300_chan = (mn10300_serial_info )chan->dev_priv;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	864 cyg_uint8 sr = mn10300_read_sr( mn10300_chan);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	865
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	866 if( (sr & SR_RBF) != 0 )
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	867 {
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	868 cyg_uint8 rxb;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	869 HAL_READ_UINT8( mn10300_chan->base+SERIAL_RXB, rxb );
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	870
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	871 (chan->callbacks->rcv_char)(chan, rxb);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	872 }
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	873
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	874 cyg_drv_interrupt_unmask(mn10300_chan->rx_int);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	875 }
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	876
32 5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	877 #endif
5af43b635655 Merge from eCos master repository on 1999-08-18-15:20:01-BST jlarmour parents: 30 diff changeset	878
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	879 static void
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	880 mn10300_serial_tx_DSR(cyg_vector_t vector, cyg_ucount32 count, cyg_addrword_t data)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	881 {
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	882 serial_channel chan = (serial_channel )data;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	883 mn10300_serial_info mn10300_chan = (mn10300_serial_info )chan->dev_priv;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	884 cyg_uint8 sr = mn10300_read_sr( mn10300_chan);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	885
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	886 if( (sr & SR_TBF) == 0 )
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	887 {
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	888 (chan->callbacks->xmt_char)(chan);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	889 }
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	890
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	891 cyg_drv_interrupt_unmask(mn10300_chan->tx_int);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	892 }
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	893
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	894 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	895
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	896 #endif // CYGPKG_IO_SERIAL_MN10300
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	897
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	898 //-------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	899 // EOF mn10300.c

Mercurial > ecos-v2_0-branch

annotate packages/io/serial/current/src/mn10300/mn10300_serial.c @ 62:7a6ac9edc838 ecos-sw-2000-01-24