sergiotarxz/nuttx
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
f8ef544c34
nuttx/arch/misoc/include/lm32/irq.h
Ramtin Amin 7568aaf213 Misoc LM32: Add signal handling logic
2016-11-24 12:58:23 -06:00

239 lines
8.4 KiB
C
Raw Blame History

/****************************************************************************
* arch/misoc/include/lm32/irq.h
*
* Copyright (C) 2016 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
* Ramtin Amin <keytwo@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
#ifndef __ARCH_MISOC_INCLUDE_LM32_IRQ_H
#define __ARCH_MISOC_INCLUDE_LM32_IRQ_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <arch/types.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* 32 True interrupts plus the sofware interrupt */
#define LM32_NINTERRUPTS 32
#define LM32_IRQ_SWINT 32
#define NR_IRQS 33
/* Registers */
#define REG_X0_NDX 0 /* Holds the value zero */
#define REG_X1_NDX 1 /* General-purpose/argument 0/return value 0 */
#define REG_X2_NDX 2 /* General-purpose/argument 1/return value 1 */
#define REG_X3_NDX 3 /* General-purpose/argument 2 */
#define REG_X4_NDX 4 /* General-purpose/argument 3 */
#define REG_X5_NDX 5 /* General-purpose/argument 4 */
#define REG_X6_NDX 6 /* General-purpose/argument 5 */
#define REG_X7_NDX 7 /* General-purpose/argument 6 */
#define REG_X8_NDX 8 /* General-purpose/argument 7 */
#define REG_X9_NDX 9 /* General-purpose */
#define REG_X10_NDX 10 /* General-purpose */
#define REG_X11_NDX 11 /* General-purpose */
#define REG_X12_NDX 12 /* General-purpose */
#define REG_X13_NDX 13 /* General-purpose */
#define REG_X14_NDX 14 /* General-purpose */
#define REG_X15_NDX 15 /* General-purpose */
#define REG_X16_NDX 16 /* General-purpose */
#define REG_X17_NDX 17 /* General-purpose */
#define REG_X18_NDX 18 /* General-purpose */
#define REG_X19_NDX 19 /* General-purpose */
#define REG_X20_NDX 20 /* General-purpose */
#define REG_X21_NDX 21 /* General-purpose */
#define REG_X22_NDX 22 /* General-purpose */
#define REG_X23_NDX 23 /* General-purpose */
#define REG_X24_NDX 24 /* General-purpose */
#define REG_X25_NDX 25 /* General-purpose */
#define REG_X26_NDX 26 /* General-purpose/global pointer */
#define REG_X27_NDX 27 /* General-purpose/frame pointer */
#define REG_X28_NDX 28 /* Stack pointer */
#define REG_X29_NDX 29 /* General-purpose/return address */
#define REG_X30_NDX 30 /* Exception address */
#define REG_X31_NDX 31 /* Breakpoint address */
#define REG_X32_NDX 32 /* Reg IE */
/* Interrupt Context register */
#define XCPTCONTEXT_REGS 33
#define XCPTCONTEXT_SIZE (4 * XCPTCONTEXT_REGS)
#ifdef __ASSEMBLY__
# define REG_X0 (4*REG_X0_NDX)
# define REG_X1 (4*REG_X1_NDX)
# define REG_X2 (4*REG_X2_NDX)
# define REG_X3 (4*REG_X3_NDX)
# define REG_X4 (4*REG_X4_NDX)
# define REG_X5 (4*REG_X5_NDX)
# define REG_X6 (4*REG_X6_NDX)
# define REG_X7 (4*REG_X7_NDX)
# define REG_X8 (4*REG_X8_NDX)
# define REG_X9 (4*REG_X9_NDX)
# define REG_X10 (4*REG_X10_NDX)
# define REG_X11 (4*REG_X11_NDX)
# define REG_X12 (4*REG_X12_NDX)
# define REG_X13 (4*REG_X13_NDX)
# define REG_X14 (4*REG_X14_NDX)
# define REG_X15 (4*REG_X15_NDX)
# define REG_X16 (4*REG_X16_NDX)
# define REG_X17 (4*REG_X17_NDX)
# define REG_X18 (4*REG_X18_NDX)
# define REG_X19 (4*REG_X19_NDX)
# define REG_X20 (4*REG_X20_NDX)
# define REG_X21 (4*REG_X21_NDX)
# define REG_X22 (4*REG_X22_NDX)
# define REG_X23 (4*REG_X23_NDX)
# define REG_X24 (4*REG_X24_NDX)
# define REG_X25 (4*REG_X25_NDX)
# define REG_X26 (4*REG_X26_NDX)
# define REG_X27 (4*REG_X27_NDX)
# define REG_X28 (4*REG_X28_NDX)
# define REG_X29 (4*REG_X29_NDX)
# define REG_X30 (4*REG_X30_NDX)
# define REG_X31 (4*REG_X31_NDX)
# define REG_INT_CTX (4*REG_X32_NDX)
#else
# define REG_X0 REG_X0_NDX
# define REG_X1 REG_X1_NDX
# define REG_X2 REG_X2_NDX
# define REG_X3 REG_X3_NDX
# define REG_X4 REG_X4_NDX
# define REG_X5 REG_X5_NDX
# define REG_X6 REG_X6_NDX
# define REG_X7 REG_X7_NDX
# define REG_X8 REG_X8_NDX
# define REG_X9 REG_X9_NDX
# define REG_X10 REG_X10_NDX
# define REG_X11 REG_X11_NDX
# define REG_X12 REG_X12_NDX
# define REG_X13 REG_X13_NDX
# define REG_X14 REG_X14_NDX
# define REG_X15 REG_X15_NDX
# define REG_X16 REG_X16_NDX
# define REG_X17 REG_X17_NDX
# define REG_X18 REG_X18_NDX
# define REG_X19 REG_X19_NDX
# define REG_X20 REG_X20_NDX
# define REG_X21 REG_X21_NDX
# define REG_X22 REG_X22_NDX
# define REG_X23 REG_X23_NDX
# define REG_X24 REG_X24_NDX
# define REG_X25 REG_X25_NDX
# define REG_X26 REG_X26_NDX
# define REG_X27 REG_X27_NDX
# define REG_X28 REG_X28_NDX
# define REG_X29 REG_X29_NDX
# define REG_X30 REG_X30_NDX
# define REG_X31 REG_X31_NDX
# define REG_INT_CTX REG_X32_NDX
#endif
/* Register aliases */
#define REG_GP REG_X26
#define REG_FP REG_X27
#define REG_SP REG_X28
#define REG_RA REG_X29
#define REG_EA REG_X30
#define REG_BA REG_X31
#define REG_EPC REG_X30
#define REG_A0 REG_X1
#define REG_A1 REG_X2
#define REG_A2 REG_X3
#define REG_A3 REG_X4
#define REG_A4 REG_X5
#define REG_A5 REG_X6
#define REG_A6 REG_X7
#define REG_A7 REG_X8
#define REG_IE REG_INT_CTX
/****************************************************************************
* Public Types
****************************************************************************/
#ifndef __ASSEMBLY__
struct xcptcontext
{
#ifndef CONFIG_DISABLE_SIGNALS
/* The following function pointer is non-NULL if there are pending signals
* to be processed.
*/
void *sigdeliver; /* Actual type is sig_deliver_t */
/* These additional register save locations are used to implement the
* signal delivery trampoline.
*/
uint32_t saved_epc; /* Trampoline PC */
uint32_t saved_int_ctx; /* Interrupt context with interrupts disabled. */
# ifdef CONFIG_BUILD_KERNEL
/* This is the saved address to use when returning from a user-space
* signal handler.
*/
uint32_t sigreturn;
# endif
#endif
#ifdef CONFIG_BUILD_KERNEL
/* The following array holds information needed to return from each nested
* system call.
*/
uint8_t nsyscalls;
struct xcpt_syscall_s syscall[CONFIG_SYS_NNEST];
#endif
/* Register save area */
uint32_t regs[XCPTCONTEXT_REGS];
};
#endif /* __ASSEMBLY__ */
#endif /* __ARCH_MISOC_INCLUDE_LM32_IRQ_H */
Reference in New Issue View Git Blame Copy Permalink