diff options
| -rw-r--r-- | src/nucleao-32/Makefile | 2 | ||||
| -rw-r--r-- | src/nucleao-32/ao_lisp_os.h | 62 | ||||
| -rw-r--r-- | src/nucleao-32/ao_lisp_os_save.c | 53 | ||||
| -rw-r--r-- | src/nucleao-32/load.ld | 108 |
4 files changed, 224 insertions, 1 deletions
diff --git a/src/nucleao-32/Makefile b/src/nucleao-32/Makefile index 69049982..2b9fe14f 100644 --- a/src/nucleao-32/Makefile +++ b/src/nucleao-32/Makefile @@ -60,7 +60,7 @@ IDPRODUCT=0x000a CFLAGS = $(PRODUCT_DEF) $(STMF0_CFLAGS) -Os -g -LDFLAGS=$(CFLAGS) -L$(TOPDIR)/stmf0 -Wl,-Tload.ld +LDFLAGS=$(CFLAGS) -L$(TOPDIR)/stmf0 -Wl,-Tload.ld -n PROGNAME=nucleo-32 PROG=$(PROGNAME)-$(VERSION).elf diff --git a/src/nucleao-32/ao_lisp_os.h b/src/nucleao-32/ao_lisp_os.h new file mode 100644 index 00000000..1993ac44 --- /dev/null +++ b/src/nucleao-32/ao_lisp_os.h @@ -0,0 +1,62 @@ +/* + * Copyright © 2016 Keith Packard <keithp@keithp.com> + * + * This program 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; version 2 of the License. + * + * 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., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ + +#ifndef _AO_LISP_OS_H_ +#define _AO_LISP_OS_H_ + +#include "ao.h" + +static inline int +ao_lisp_getc() { + static uint8_t at_eol; + int c; + + if (at_eol) { + ao_cmd_readline(); + at_eol = 0; + } + c = ao_cmd_lex(); + if (c == '\n') + at_eol = 1; + return c; +} + +static inline void +ao_lisp_os_flush(void) +{ + flush(); +} + +static inline void +ao_lisp_abort(void) +{ + ao_panic(1); +} + +static inline void +ao_lisp_os_led(int led) +{ + ao_led_set(led); +} + +static inline void +ao_lisp_os_delay(int delay) +{ + ao_delay(AO_MS_TO_TICKS(delay)); +} + +#endif diff --git a/src/nucleao-32/ao_lisp_os_save.c b/src/nucleao-32/ao_lisp_os_save.c new file mode 100644 index 00000000..cd740ccd --- /dev/null +++ b/src/nucleao-32/ao_lisp_os_save.c @@ -0,0 +1,53 @@ +/* + * Copyright © 2016 Keith Packard <keithp@keithp.com> + * + * This program 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. + * + * 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. + */ + +#include <ao.h> +#include <ao_lisp.h> +#include <ao_flash.h> + +extern uint8_t __flash__[] __attribute__((aligned(4))); + +/* saved variables to rebuild the heap + + ao_lisp_atoms + ao_lisp_frame_global + */ + +int +ao_lisp_os_save(void) +{ + int i; + + for (i = 0; i < AO_LISP_POOL_TOTAL; i += 256) { + uint32_t *dst = (uint32_t *) (void *) &__flash__[i]; + uint32_t *src = (uint32_t *) (void *) &ao_lisp_pool[i]; + + ao_flash_page(dst, src); + } + return 1; +} + +int +ao_lisp_os_restore_save(struct ao_lisp_os_save *save, int offset) +{ + memcpy(save, &__flash__[offset], sizeof (struct ao_lisp_os_save)); + return 1; +} + +int +ao_lisp_os_restore(void) +{ + memcpy(ao_lisp_pool, __flash__, AO_LISP_POOL_TOTAL); + return 1; +} diff --git a/src/nucleao-32/load.ld b/src/nucleao-32/load.ld new file mode 100644 index 00000000..02a23a95 --- /dev/null +++ b/src/nucleao-32/load.ld @@ -0,0 +1,108 @@ +/* + * Copyright © 2012 Keith Packard <keithp@keithp.com> + * + * This program 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. + * + * 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., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ + +MEMORY { + rom (rx) : ORIGIN = 0x08001000, LENGTH = 27K + flash (rx) : ORIGIN = 0x08007c00, LENGTH = 1K + ram (!w) : ORIGIN = 0x20000000, LENGTH = 6k - 128 + stack (!w) : ORIGIN = 0x20000000 + 6k - 128, LENGTH = 128 +} + +INCLUDE registers.ld + +EXTERN (stm_interrupt_vector) + +SECTIONS { + /* + * Rom contents + */ + + .interrupt ORIGIN(ram) : AT (ORIGIN(rom)) { + __interrupt_start__ = .; + __interrupt_rom__ = ORIGIN(rom); + *(.interrupt) /* Interrupt vectors */ + __interrupt_end__ = .; + } > ram + + .text ORIGIN(rom) + 0x100 : { + __text_start__ = .; + + /* Ick. What I want is to specify the + * addresses of some global constants so + * that I can find them across versions + * of the application. I can't figure out + * how to make gnu ld do that, so instead + * we just load the two files that include + * these defines in the right order here and + * expect things to 'just work'. Don't change + * the contents of those files, ok? + */ + ao_romconfig.o(.romconfig*) + ao_product.o(.romconfig*) + + *(.text*) /* Executable code */ + } > rom + + .ARM.exidx : { + *(.ARM.exidx* .gnu.linkonce.armexidx.*) + } > rom + + .rodata : { + *(.rodata*) /* Constants */ + } > rom + + __text_end__ = .; + + /* Boot data which must live at the start of ram so that + * the application and bootloader share the same addresses. + * This must be all uninitialized data + */ + .boot (NOLOAD) : { + __boot_start__ = .; + *(.boot) + . = ALIGN(4); + __boot_end__ = .; + } >ram + + /* Data -- relocated to RAM, but written to ROM + */ + .data : { + __data_start__ = .; + *(.data) /* initialized data */ + . = ALIGN(4); + __data_end__ = .; + } >ram AT>rom + + .bss : { + __bss_start__ = .; + *(.bss) + *(COMMON) + . = ALIGN(4); + __bss_end__ = .; + } >ram + + PROVIDE(end = .); + + PROVIDE(__stack__ = ORIGIN(stack) + LENGTH(stack)); + + __flash__ = ORIGIN(flash); +} + +ENTRY(start); + + |