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https://github.com/markqvist/OpenModem.git
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Mark Qvist
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c898b090dd
1049 changed files with 288572 additions and 0 deletions
74
bertos/cpu/i196/drv/kdebug_i196.c
Normal file
74
bertos/cpu/i196/drv/kdebug_i196.c
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@ -0,0 +1,74 @@
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/**
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* \file
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* <!--
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* This file is part of BeRTOS.
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*
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* Bertos is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* As a special exception, you may use this file as part of a free software
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* library without restriction. Specifically, if other files instantiate
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* templates or use macros or inline functions from this file, or you compile
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* this file and link it with other files to produce an executable, this
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* file does not by itself cause the resulting executable to be covered by
|
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* the GNU General Public License. This exception does not however
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* invalidate any other reasons why the executable file might be covered by
|
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* the GNU General Public License.
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*
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* Copyright 2003, 2004, 2005, 2006, 2007 Develer S.r.l. (http://www.develer.com/)
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* Copyright 2000, 2001, 2002 Bernie Innocenti <bernie@codewiz.org>
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*
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* -->
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*
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* \brief General pourpose debug support for embedded systems (implementation).
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*
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* \author Bernie Innocenti <bernie@codewiz.org>
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* \author Stefano Fedrigo <aleph@develer.com>
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*/
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#error Revise me!
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#include <cfg/debug.h>
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#include <cfg/macros.h> /* for BV() */
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#include <appconfig.h>
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#include <hw/hw_cpufreq.h> /* for CPU_FREQ */
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#include <hw_ser.h> /* Required for bus macros overrides */
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#include "Util196.h"
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#define KDBG_WAIT_READY() do {} while (!(SP_STAT & (SPSF_TX_EMPTY | SPSF_TX_INT)))
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#define KDBG_WRITE_CHAR(c) do { SBUF = (c); } while(0)
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#define KDBG_MASK_IRQ(old) \
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do { \
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(old) = INT_MASK1 & INT1F_TI; \
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INT_MASK1 &= ~INT1F_TI; \
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} while(0)
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#define KDBG_RESTORE_IRQ(old) do { INT_MASK1 |= (old); }
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typedef uint16_t kdbg_irqsave_t; /* FIXME: unconfirmed */
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#if CONFIG_KDEBUG_PORT == 666
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#error BITBANG debug console missing for this platform
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#endif
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INLINE void kdbg_hw_init(void)
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{
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/* Set serial port for 19200bps 8N1 */
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INT_MASK1 &= ~(INT1F_TI | INT1F_RI);
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SP_CON = SPCF_RECEIVE_ENABLE | SPCF_MODE1;
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ioc1_img |= IOC1F_TXD_SEL | IOC1F_EXTINT_SRC;
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IOC1 = ioc1_img;
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BAUD_RATE = 0x33;
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BAUD_RATE = 0x80;
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}
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133
bertos/cpu/i196/drv/ser_i196.c
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133
bertos/cpu/i196/drv/ser_i196.c
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@ -0,0 +1,133 @@
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/**
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* \file
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* <!--
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* This file is part of BeRTOS.
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*
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* Bertos is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
|
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* As a special exception, you may use this file as part of a free software
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* library without restriction. Specifically, if other files instantiate
|
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* templates or use macros or inline functions from this file, or you compile
|
||||
* this file and link it with other files to produce an executable, this
|
||||
* file does not by itself cause the resulting executable to be covered by
|
||||
* the GNU General Public License. This exception does not however
|
||||
* invalidate any other reasons why the executable file might be covered by
|
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* the GNU General Public License.
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*
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* Copyright (C) 2003,2004 Develer S.r.l. (http://www.develer.com/)
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* Copyright (C) 2000 Bernie Innocenti <bernie@codewiz.org>
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*
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* -->
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*
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*
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* \author Bernie Innocenti <bernie@codewiz.org>
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*
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* \brief CPU specific serial I/O driver
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*/
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/*#*
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*#* $Log$
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*#* Revision 1.7 2006/07/19 12:56:26 bernie
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*#* Convert to new Doxygen style.
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*#*
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*#* Revision 1.6 2005/11/04 16:20:02 bernie
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*#* Fix reference to README.devlib in header.
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*#*
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*#* Revision 1.5 2004/12/13 11:51:08 bernie
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*#* DISABLE_INTS/ENABLE_INTS: Convert to IRQ_DISABLE/IRQ_ENABLE.
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*#*
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*#* Revision 1.4 2004/08/25 14:12:08 rasky
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*#* Aggiornato il comment block dei log RCS
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*#*
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*#* Revision 1.3 2004/06/03 11:27:09 bernie
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*#* Add dual-license information.
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*#*
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*#* Revision 1.2 2004/05/23 18:21:53 bernie
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*#* Trim CVS logs and cleanup header info.
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*#*
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*#*/
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#include "hw.h"
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#include "serhw.h"
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#define SER_HW_ENABLE_TX \
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ATOMIC( \
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if (!ser_sending) \
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{ \
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ser_sending = true; \
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(INT_PEND1 |= INT1F_TI) \
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} \
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);
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static volatile bool ser_sending;
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// Serial TX intr
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INTERRUPT(0x30) void TI_interrupt(void)
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{
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if (CANT_SEND)
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{
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ser_sending = false;
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return;
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}
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/* Can we send two bytes at the same time? */
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if (SP_STAT & SPSF_TX_EMPTY)
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{
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SBUF = fifo_pop(&ser_txfifo);
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if (CANT_SEND)
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{
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ser_sending = false;
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return;
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}
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}
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SBUF = fifo_pop(&ser_txfifo);
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}
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INTERRUPT(0x32) void RI_interrupt(void)
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{
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ser_status |= SP_STAT &
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(SPSF_OVERRUN_ERROR | SPSF_PARITY_ERROR | SPSF_FRAMING_ERROR);
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if (fifo_isfull(&ser_rxfifo))
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ser_status |= SERRF_RXFIFOOVERRUN;
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else
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fifo_push(&ser_rxfifo, SBUF);
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}
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static void ser_setbaudrate(unsigned long rate)
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{
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// Calcola il periodo per la generazione del baud rate richiesto
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uint16_t baud = (uint16_t)(((CPU_FREQ / 16) / rate) - 1) | 0x8000;
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BAUD_RATE = (uint8_t)baud;
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BAUD_RATE = (uint8_t)(baud >> 8);
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}
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static void ser_hw_init(void)
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{
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// Inizializza la porta seriale
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SP_CON = SPCF_RECEIVE_ENABLE | SPCF_MODE1;
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ioc1_img |= IOC1F_TXD_SEL | IOC1F_EXTINT_SRC;
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IOC1 = ioc1_img;
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// Svuota il buffer di ricezione
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{
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uint8_t dummy = SBUF;
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}
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// Abilita gli interrupt
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INT_MASK1 |= INT1F_TI | INT1F_RI;
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}
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88
bertos/cpu/i196/drv/timer_i196.h
Normal file
88
bertos/cpu/i196/drv/timer_i196.h
Normal file
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@ -0,0 +1,88 @@
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#error This code must be revised for the new timer API
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/**
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* \file
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* <!--
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* This file is part of BeRTOS.
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*
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* Bertos is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
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||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*
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||||
* As a special exception, you may use this file as part of a free software
|
||||
* library without restriction. Specifically, if other files instantiate
|
||||
* templates or use macros or inline functions from this file, or you compile
|
||||
* this file and link it with other files to produce an executable, this
|
||||
* file does not by itself cause the resulting executable to be covered by
|
||||
* the GNU General Public License. This exception does not however
|
||||
* invalidate any other reasons why the executable file might be covered by
|
||||
* the GNU General Public License.
|
||||
*
|
||||
* Copyright 2003,2004 Develer S.r.l. (http://www.develer.com/)
|
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* Copyright 2000 Bernie Innocenti
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*
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* -->
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*
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*
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* \author Bernie Innocenti <bernie@codewiz.org>
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*
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* \brief Low-level timer module for AVR
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*/
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/*#*
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*#* $Log$
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*#* Revision 1.7 2006/07/19 12:56:26 bernie
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*#* Convert to new Doxygen style.
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*#*
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*#* Revision 1.6 2006/02/21 21:28:02 bernie
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*#* New time handling based on TIMER_TICKS_PER_SEC to support slow timers with ticks longer than 1ms.
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*#*
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*#* Revision 1.5 2005/11/04 16:20:02 bernie
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*#* Fix reference to README.devlib in header.
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*#*
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*#* Revision 1.4 2004/12/13 11:51:08 bernie
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*#* DISABLE_INTS/ENABLE_INTS: Convert to IRQ_DISABLE/IRQ_ENABLE.
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*#*
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*#* Revision 1.3 2004/08/25 14:12:08 rasky
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*#* Aggiornato il comment block dei log RCS
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*#*
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*#* Revision 1.2 2004/06/03 11:27:09 bernie
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*#* Add dual-license information.
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*#*
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*#* Revision 1.1 2004/05/23 18:23:30 bernie
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*#* Import drv/timer module.
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*#*
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*#*/
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#ifndef TIMER_I196_H
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#define TIMER_I196_H
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/**
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* Retrigger TIMER2, adjusting the time to account for
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* the interrupt prologue latency.
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*/
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#define TIMER_RETRIGGER (TIMER2 -= TICKS_RATE)
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#define TIMER_INIT \
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TIMER2 = (65535 - TICKS_RATE); \
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INT_MASK1 |= INT1F_T2OVF; \
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ATOMIC( \
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WSR = 1; \
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IOC3 |= IOC3F_T2_ENA; \
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WSR = 0; \
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)
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#define DEFINE_TIMER_ISR \
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INTERRUPT(0x38) void TM2_OVFL_interrupt(void); \
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INTERRUPT(0x38) void TM2_OVFL_interrupt(void)
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#endif /* DRV_TIMER_I196_H */
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91
bertos/cpu/i196/hw/switch_i196.s32
Normal file
91
bertos/cpu/i196/hw/switch_i196.s32
Normal file
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@ -0,0 +1,91 @@
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;* Copyright 2004 Develer S.r.l. (http://www.develer.com/)
|
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;* Copyright 1999,2000,2001 Bernie Innocenti <bernie@codewiz.org>
|
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;* This file is part of DevLib - See devlib/README for information.
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;*
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||||
;*
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||||
;* \author Bernie Innocenti <bernie@codewiz.org>
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;*
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||||
|
||||
;* $Log$
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||||
;* Revision 1.2 2004/06/06 16:14:12 bernie
|
||||
;* Add DevLib license information.
|
||||
;*
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||||
;* Revision 1.1 2004/05/23 17:27:00 bernie
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||||
;* Import kern/ subdirectory.
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;*
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;*
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!!!!!! THIS FILE HAS NOT BEEN REVISED FOR THE NEW SCHEDULER API !!!!!!
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NAME AsmSwitch
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RSEG CODE
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EXTERN ?LR
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EXTERN ?GR
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PUBLIC AsmSwitchContext
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PUBLIC AsmReplaceContext
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||||
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||||
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||||
;* Perform low-level process context switching
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||||
;*
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||||
;* void AsmSwitchContext(cpustack_t *new_sp, cpustack_t **save_sp)
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||||
;* GR+0 SP+2
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||||
;*
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||||
;* Replace current context with new process
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||||
;*
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||||
;* void AsmReplaceContext(cpustack_t *new_sp, cpustack_t **dummy)
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||||
;* GR+0 SP+2
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||||
;*
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||||
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||||
AsmSwitchContext:
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||||
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||||
; pop 2nd parameter from the stack
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||||
ld ?GR+2,2[SP]
|
||||
|
||||
; save all registers
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||||
push ?LR+0
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||||
push ?LR+2
|
||||
push ?LR+4
|
||||
push ?LR+6
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||||
push ?LR+8
|
||||
push ?LR+10
|
||||
push ?LR+12
|
||||
push ?LR+14
|
||||
push ?LR+16
|
||||
push ?LR+18
|
||||
push ?LR+20
|
||||
push ?LR+22
|
||||
push ?LR+24
|
||||
push ?LR+26
|
||||
push ?LR+28
|
||||
push ?LR+30
|
||||
st SP,[?GR+2] ; save old stack pointer
|
||||
; fall-thru
|
||||
|
||||
AsmReplaceContext:
|
||||
ld SP,?GR+0 ; load new stack pointer
|
||||
|
||||
; restore all registers
|
||||
pop ?LR+30
|
||||
pop ?LR+28
|
||||
pop ?LR+26
|
||||
pop ?LR+24
|
||||
pop ?LR+22
|
||||
pop ?LR+20
|
||||
pop ?LR+18
|
||||
pop ?LR+16
|
||||
pop ?LR+14
|
||||
pop ?LR+12
|
||||
pop ?LR+10
|
||||
pop ?LR+8
|
||||
pop ?LR+6
|
||||
pop ?LR+4
|
||||
pop ?LR+2
|
||||
pop ?LR+0
|
||||
|
||||
; restore execution in new context
|
||||
ret
|
||||
|
||||
END
|
||||
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