📄 hal_if.h
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#ifndef CYGONCE_HAL_HAL_IF_H
#define CYGONCE_HAL_HAL_IF_H
//=============================================================================
//
// hal_if.h
//
// HAL header for ROM/RAM calling interface.
//
//=============================================================================
//####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Red Hat, Inc.
// Copyright (C) 2002, 2003, 2004 Gary Thomas
//
// eCos 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 or (at your option) any later version.
//
// eCos 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 eCos; if not, write to the Free Software Foundation, Inc.,
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
//
// As a special exception, if other files instantiate templates or use macros
// or inline functions from this file, or you compile this file and link it
// with other works to produce a work based on this file, this file does not
// by itself cause the resulting work to be covered by the GNU General Public
// License. However the source code for this file must still be made available
// in accordance with section (3) of the GNU General Public License.
//
// This exception does not invalidate any other reasons why a work based on
// this file might be covered by the GNU General Public License.
//
// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
// at http://sources.redhat.com/ecos/ecos-license/
// -------------------------------------------
//####ECOSGPLCOPYRIGHTEND####
//=============================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s): jskov
// Contributors:jskov, woehler
// Date: 2000-06-07
// Purpose: HAL RAM/ROM calling interface
// Description: ROM/RAM calling interface table definitions. The layout is a
// combination of libbsp and vectors already in use by some
// eCos platforms.
// Usage: #include <cyg/hal/hal_if.h>
//
//####DESCRIPTIONEND####
//
//=============================================================================
#include <cyg/infra/cyg_type.h> // types & externC
#include <cyg/hal/dbg-threads-api.h>
#include <cyg/hal/dbg-thread-syscall.h>
#include <stdarg.h>
#ifdef CYGSEM_HAL_VIRTUAL_VECTOR_SUPPORT
// Architecture/var/platform may override the accessor macros.
#include <cyg/hal/hal_arch.h>
// Special monitor locking procedures. These are necessary when the monitor
// and eCos share facilities, e.g. the network hardware.
#ifdef CYGPKG_NET
#include <cyg/hal/hal_intr.h>
#include <cyg/hal/drv_api.h> // cyg_drv_dsr_lock(), etc
#define _ENTER_MONITOR() \ cyg_uint32 ints; \ HAL_DISABLE_INTERRUPTS(ints); \ cyg_drv_dsr_lock()
#define _EXIT_MONITOR() \ cyg_drv_dsr_unlock(); \ HAL_RESTORE_INTERRUPTS(ints)
#else // !CYGPKG_NET
#define _ENTER_MONITOR() CYG_EMPTY_STATEMENT
#define _EXIT_MONITOR() CYG_EMPTY_STATEMENT
#endif
//--------------------------------------------------------------------------
#ifndef _BSP_HANDLER_T_DEFINED
#define _BSP_HANDLER_T_DEFINED
typedef int (*bsp_handler_t)(int __irq_nr, void *__regs);
#endif // _BSP_HANDLER_T_DEFINED
//--------------------------------------------------------------------------
// Communication interface table. CYGNUM_CALL_IF_CONSOLE_PROCS and
// CYGNUM_CALL_IF_DEBUG_PROCS point to instances (possibly the same)
// of this table.
typedef enum {
/*
* For serial ports, the control function may be used to set and get the
* current baud rate. Usage:
*
* err = (*__control)(COMMCTL_SETBAUD, int bits_per_second);
* err => Zero if successful, -1 if error.
*
* baud = (*__control)(COMMCTL_GETBAUD);
* baud => -1 if error, current baud otherwise.
*/
__COMMCTL_SETBAUD=0,
__COMMCTL_GETBAUD,
/*
* Install and remove debugger interrupt handlers. These are the receiver
* interrupt routines which are used to change control from a running
* program to the debugger stub.
*/
__COMMCTL_INSTALL_DBG_ISR,
__COMMCTL_REMOVE_DBG_ISR,
/*
* Disable comm port interrupt. Returns TRUE if interrupt was enabled,
* FALSE otherwise.
*/
__COMMCTL_IRQ_DISABLE,
/*
* Enable comm port interrupt.
*/
__COMMCTL_IRQ_ENABLE,
/*
* Returns the number of the interrupt vector used by the debug
* interrupt handler.
*/
__COMMCTL_DBG_ISR_VECTOR,
/*
* Returns the current timeout value and sets a new timeout.
* Timeout resolution is in milliseconds.
* old_timeout = (*__control)(__COMMCTL_SET_TIMEOUT,
* cyg_int32 new_timeout);
*/
__COMMCTL_SET_TIMEOUT,
/*
* Forces driver to send all characters which may be buffered in
* the driver. This only flushes the driver buffers, not necessarily
* any hardware FIFO, etc.
*/
__COMMCTL_FLUSH_OUTPUT,
/*
* Forces driver to enable or disable flushes when a newline is
* seen in the output stream. Flushing at line boundaries occurs
* in the driver, not necessarily any hardware FIFO, etc. Line
* buffering is optional and may only be available in some drivers.
*/
__COMMCTL_ENABLE_LINE_FLUSH,
__COMMCTL_DISABLE_LINE_FLUSH,
} __comm_control_cmd_t;
#define CYGNUM_COMM_IF_CH_DATA 0
#define CYGNUM_COMM_IF_WRITE 1
#define CYGNUM_COMM_IF_READ 2
#define CYGNUM_COMM_IF_PUTC 3
#define CYGNUM_COMM_IF_GETC 4
#define CYGNUM_COMM_IF_CONTROL 5
#define CYGNUM_COMM_IF_DBG_ISR 6
#define CYGNUM_COMM_IF_GETC_TIMEOUT 7
#define CYGNUM_COMM_IF_TABLE_SIZE 8
typedef volatile CYG_ADDRWORD hal_virtual_comm_table_t[CYGNUM_COMM_IF_TABLE_SIZE];
// The below is a (messy) attempt at adding some type safety to the
// above array. At the same time, the accessors allow the
// implementation to be easily changed in the future (both tag->data
// table and structure implementations have been suggested).
typedef void* __comm_if_ch_data_t;
typedef void (*__comm_if_write_t)(void* __ch_data, const cyg_uint8* __buf,
cyg_uint32 __len);
typedef int (*__comm_if_read_t)(void* __ch_data, cyg_uint8* __buf,
cyg_uint32 __len);
typedef void (*__comm_if_putc_t)(void* __ch_data, cyg_uint8 __ch);
typedef cyg_uint8 (*__comm_if_getc_t)(void* __ch_data);
typedef int (*__comm_if_control_t)(void *__ch_data,
__comm_control_cmd_t __func, ...);
typedef int (*__comm_if_dbg_isr_t)(void *__ch_data,
int* __ctrlc, CYG_ADDRWORD __vector,
CYG_ADDRWORD __data);
typedef cyg_bool (*__comm_if_getc_timeout_t)(void* __ch_data, cyg_uint8* __ch);
#define __call_COMM0(_n_,_rt_,_t_) \static __inline__ _rt_ \__call_COMM_##_n_(hal_virtual_comm_table_t t) \{ \ _rt_ res; \ void *dp = (__comm_if_ch_data_t)t[CYGNUM_COMM_IF_CH_DATA]; \ _ENTER_MONITOR(); \ res = ((_t_)(t[CYGNUM_COMM_##_n_]))(dp); \ _EXIT_MONITOR(); \ return res; \}
#define __call_voidCOMM(_n_,_rt_,_t_) \static __inline__ _rt_ \__call_COMM_##_n_(hal_virtual_comm_table_t t) \{ \ void *dp = (__comm_if_ch_data_t)t[CYGNUM_COMM_IF_CH_DATA]; \ _ENTER_MONITOR(); \ ((_t_)(t[CYGNUM_COMM_##_n_]))(dp); \ _EXIT_MONITOR(); \}
#define __call_COMM1(_n_,_rt_,_t_,_t1_) \static __inline__ _rt_ \__call_COMM_##_n_(hal_virtual_comm_table_t t, _t1_ _p1_) \{ \ _rt_ res; \ void *dp = (__comm_if_ch_data_t)t[CYGNUM_COMM_IF_CH_DATA]; \ _ENTER_MONITOR(); \ res = ((_t_)(t[CYGNUM_COMM_##_n_]))(dp, _p1_); \ _EXIT_MONITOR(); \ return res; \}
#define __call_voidCOMM1(_n_,_rt_,_t_,_t1_) \static __inline__ _rt_ \__call_COMM_##_n_(hal_virtual_comm_table_t t, _t1_ _p1_) \{ \ void *dp = (__comm_if_ch_data_t)t[CYGNUM_COMM_IF_CH_DATA]; \ _ENTER_MONITOR(); \ ((_t_)(t[CYGNUM_COMM_##_n_]))(dp, _p1_); \ _EXIT_MONITOR(); \}
#define __call_COMM2(_n_,_rt_,_t_,_t1_,_t2_) \static __inline__ _rt_ \__call_COMM_##_n_(hal_virtual_comm_table_t t, _t1_ _p1_, _t2_ _p2_) \{ \ _rt_ res; \ void *dp = (__comm_if_ch_data_t)t[CYGNUM_COMM_IF_CH_DATA]; \⌨️ 快捷键说明
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