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Added memzip filesystem support for teensy

Browse Source 
You can now append a zipfile (containining uncomressed python sources)
to the micropython.hex file.

Use MEMZIP_DIR=directory when you call make, or set that in your
environment to include a different tree of source files.

Added sample /boot.py, /src/main.py, /test.py and /src/test.py files.

Added run command so that you can execute scripts from REPL (until import is implemented).

Added build directory to .gitignore
This commit is contained in:
Dave Hylands 2014-01-08 01:00:22 -08:00
parent c698d266d1
commit d80ee8bbfd
14 changed files with 285 additions and 47 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
.gitignore vendored
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@ -19,3 +19,6 @@
######################
*.swp
# Build directory
######################
build/

2
stm/printf.c
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@ -221,10 +221,12 @@ void stdout_print_strn(void *data, const char *str, unsigned int len) {
bool any = false;
// TODO should have a setting for which USART port to send to
#if 0 // if 0'd out so that we're not calling functions with the wrong arguments
if (usart_is_enabled()) {
usart_tx_strn_cooked(str, len);
any = true;
}
#endif
if (usb_vcp_is_enabled()) {
usb_vcp_send_strn_cooked(str, len);

17
teensy/Makefile
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@ -33,7 +33,8 @@ SRC_C = \
lcd.c \
led.c \
lexerfatfs.c \
usart.c \
lexermemzip.c \
memzip.c \
usb.c \
STM_SRC_C = \
@ -60,9 +61,9 @@ OBJ = $(addprefix $(BUILD)/, $(SRC_C:.c=.o) $(STM_SRC_C:.c=.o) $(STM_SRC_S:.s=.o
#LIB += -ltermcap
all2: $(BUILD) hex
hex: $(BUILD)/flash.hex
hex: $(BUILD)/micropython-mz.hex
post_compile: $(BUILD)/flash.hex
post_compile: $(BUILD)/micropython-mz.hex
$(ECHO) "Preparing $@ for upload"
$(Q)$(TOOLS_PATH)/teensy_post_compile -file="$(basename $(<F))" -path="$(<D)" -tools="$(TOOLS_PATH)"
@ -72,11 +73,19 @@ reboot:
upload: post_compile reboot
$(BUILD)/flash.elf: $(OBJ)
$(BUILD)/micropython.elf: $(OBJ)
$(ECHO) "LINK $<"
$(Q)$(CC) $(LDFLAGS) -o "$@" -Wl,-Map,$(@:.elf=.map) $(OBJ) $(LIBS)
$(Q)$(SIZE) $@
ifeq ($(MEMZIP_DIR),)
MEMZIP_DIR = memzip_files
endif
$(BUILD)/micropython-mz.hex: $(BUILD)/micropython.hex $(shell find ${MEMZIP_DIR} -type f)
@$(ECHO) "Creating $@"
$(Q)./add-memzip.sh $< $@ ${MEMZIP_DIR}
$(BUILD)/%.hex: $(BUILD)/%.elf
$(ECHO) "HEX $<"
$(Q)$(OBJCOPY) -O ihex -R .eeprom "$<" "$@"

27
teensy/add-memzip.sh Executable file
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@ -0,0 +1,27 @@
#!/bin/bash
if [ "$#" != 3 ]; then
echo "Usage: add-memzip.sh input.hex output.hex file-directory"
exit 1
fi
#set -x
input_hex=$1
output_hex=$2
memzip_src_dir=$3
input_bin=${input_hex}.bin
output_bin=${output_hex}.bin
zip_file=${output_hex}.zip
zip_base=$(basename ${zip_file})
zip_dir=$(dirname ${zip_file})
abs_zip_dir=$(realpath ${zip_dir})
rm -f ${zip_file}
(cd ${memzip_src_dir}; zip -0 -r -D ${abs_zip_dir}/${zip_base} .)
objcopy -I ihex -O binary ${input_hex} ${input_bin}
cat ${input_bin} ${zip_file} > ${output_bin}
objcopy -I binary -O ihex ${output_bin} ${output_hex}
echo "Added ${memzip_src_dir} to ${input_hex} creating ${output_hex}"

18
teensy/lexermemzip.c Normal file
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@ -0,0 +1,18 @@
#include <stdint.h>
#include <stdlib.h>
#include "misc.h"
#include "lexer.h"
#include "memzip.h"
mp_lexer_t *mp_lexer_new_from_memzip_file(const char *filename)
{
void *data;
size_t len;
if (memzip_locate(filename, &data, &len) != MZ_OK) {
return NULL;
}
return mp_lexer_new_from_str_len(filename, (const char *)data, (uint)len, 0);
}

2
teensy/lexermemzip.h Normal file
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@ -0,0 +1,2 @@
mp_lexer_t *mp_lexer_new_from_memzip_file(const char *filename);

133
teensy/main.c
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@ -8,6 +8,7 @@
#include "mpconfig.h"
#include "mpqstr.h"
#include "lexer.h"
#include "lexermemzip.h"
#include "parse.h"
#include "obj.h"
#include "compile.h"
@ -22,52 +23,17 @@
extern uint32_t _heap_start;
#ifdef USE_READLINE
#include <readline/readline.h>
#include <readline/history.h>
#endif
bool do_file(const char *filename);
#if 0
static char *str_join(const char *s1, int sep_char, const char *s2) {
int l1 = strlen(s1);
int l2 = strlen(s2);
char *s = m_new(char, l1 + l2 + 2);
memcpy(s, s1, l1);
if (sep_char != 0) {
s[l1] = sep_char;
l1 += 1;
void flash_error(int n) {
for (int i = 0; i < n; i++) {
led_state(PYB_LED_BUILTIN, 1);
delay(250);
led_state(PYB_LED_BUILTIN, 0);
delay(250);
}
memcpy(s + l1, s2, l2);
s[l1 + l2] = 0;
return s;
}
static char *prompt(char *p) {
#ifdef USE_READLINE
char *line = readline(p);
if (line) {
add_history(line);
}
#else
static char buf[256];
fputs(p, stdout);
char *s = fgets(buf, sizeof(buf), stdin);
if (!s) {
return NULL;
}
int l = strlen(buf);
if (buf[l - 1] == '\n') {
buf[l - 1] = 0;
} else {
l++;
}
char *line = m_new(char, l);
memcpy(line, buf, l);
#endif
return line;
}
#endif
static const char *help_text =
"Welcome to Micro Python!\n\n"
"This is a *very* early version of Micro Python and has minimal functionality.\n\n"
@ -215,6 +181,19 @@ mp_obj_t pyb_hid_send_report(mp_obj_t arg) {
}
#endif
static qstr pyb_config_source_dir = 0;
static qstr pyb_config_main = 0;
mp_obj_t pyb_source_dir(mp_obj_t source_dir) {
pyb_config_source_dir = mp_obj_get_qstr(source_dir);
return mp_const_none;
}
mp_obj_t pyb_main(mp_obj_t main) {
pyb_config_main = mp_obj_get_qstr(main);
return mp_const_none;
}
mp_obj_t pyb_delay(mp_obj_t count) {
delay(mp_obj_get_int(count));
return mp_const_none;
@ -225,6 +204,12 @@ mp_obj_t pyb_led(mp_obj_t state) {
return state;
}
mp_obj_t pyb_run(mp_obj_t filename_obj) {
const char *filename = qstr_str(mp_obj_get_qstr(filename_obj));
do_file(filename);
return mp_const_none;
}
char *strdup(const char *str) {
uint32_t len = strlen(str);
char *s2 = m_new(char, len + 1);
@ -316,6 +301,39 @@ int readline(vstr_t *line, const char *prompt) {
}
}
bool do_file(const char *filename) {
mp_lexer_t *lex = mp_lexer_new_from_memzip_file(filename);
if (lex == NULL) {
printf("could not open file '%s' for reading\n", filename);
return false;
}
mp_parse_node_t pn = mp_parse(lex, MP_PARSE_FILE_INPUT);
mp_lexer_free(lex);
if (pn == MP_PARSE_NODE_NULL) {
return false;
}
mp_obj_t module_fun = mp_compile(pn, false);
if (module_fun == mp_const_none) {
return false;
}
nlr_buf_t nlr;
if (nlr_push(&nlr) == 0) {
rt_call_function_0(module_fun);
nlr_pop();
return true;
} else {
// uncaught exception
mp_obj_print((mp_obj_t)nlr.ret_val);
printf("\n");
return false;
}
}
void do_repl(void) {
stdout_tx_str("Micro Python for Teensy 3.1\r\n");
stdout_tx_str("Type \"help()\" for more information.\r\n");
@ -397,24 +415,53 @@ soft_reset:
rt_init();
#if 1
printf("About to add functions()\n");
// add some functions to the python namespace
{
rt_store_name(qstr_from_str_static("help"), rt_make_function_0(pyb_help));
mp_obj_t m = mp_obj_new_module(qstr_from_str_static("pyb"));
rt_store_attr(m, qstr_from_str_static("info"), rt_make_function_0(pyb_info));
rt_store_attr(m, qstr_from_str_static("source_dir"), rt_make_function_1(pyb_source_dir));
rt_store_attr(m, qstr_from_str_static("main"), rt_make_function_1(pyb_main));
rt_store_attr(m, qstr_from_str_static("gc"), rt_make_function_0(pyb_gc));
rt_store_attr(m, qstr_from_str_static("delay"), rt_make_function_1(pyb_delay));
rt_store_attr(m, qstr_from_str_static("led"), rt_make_function_1(pyb_led));
rt_store_attr(m, qstr_from_str_static("Led"), rt_make_function_1(pyb_Led));
rt_store_attr(m, qstr_from_str_static("gpio"), (mp_obj_t)&pyb_gpio_obj);
rt_store_name(qstr_from_str_static("pyb"), m);
rt_store_name(qstr_from_str_static("run"), rt_make_function_1(pyb_run));
}
#endif
if (!do_file("/boot.py")) {
printf("Unable to open '/boot.py'\n");
flash_error(4);
}
// Turn bootup LED off
led_state(PYB_LED_BUILTIN, 0);
// run main script
{
vstr_t *vstr = vstr_new();
vstr_add_str(vstr, "/");
if (pyb_config_source_dir == 0) {
vstr_add_str(vstr, "src");
} else {
vstr_add_str(vstr, qstr_str(pyb_config_source_dir));
}
vstr_add_char(vstr, '/');
if (pyb_config_main == 0) {
vstr_add_str(vstr, "main.py");
} else {
vstr_add_str(vstr, qstr_str(pyb_config_main));
}
if (!do_file(vstr_str(vstr))) {
printf("Unable to open '%s'\n", vstr_str(vstr));
flash_error(3);
}
vstr_free(vstr);
}
do_repl();
printf("PYB: soft reboot\n");

37
teensy/memzip.c Normal file
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@ -0,0 +1,37 @@
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include "memzip.h"
extern uint8_t _staticfs[];
MEMZIP_RESULT memzip_locate(const char *filename, void **data, size_t *len)
{
const MEMZIP_FILE_HDR *file_hdr = (const MEMZIP_FILE_HDR *)_staticfs;
uint8_t *mem_data;
/* Zip file filenames don't have a leading /, so we strip it off */
if (*filename == '/') {
filename++;
}
while (file_hdr->signature == MEMZIP_FILE_HEADER_SIGNATURE) {
const char *file_hdr_filename = (const char *)&file_hdr[1];
mem_data = (uint8_t *)file_hdr_filename;
mem_data += file_hdr->filename_len;
mem_data += file_hdr->extra_len;
if (!strncmp(file_hdr_filename, filename, file_hdr->filename_len)) {
/* We found a match */
if (file_hdr->compression_method != 0) {
return MZ_FILE_COMPRESSED;
}
*data = mem_data;
*len = file_hdr->uncompressed_size;
return MZ_OK;
}
mem_data += file_hdr->uncompressed_size;
file_hdr = (const MEMZIP_FILE_HDR *)mem_data;
}
return MZ_NO_FILE;
}

73
teensy/memzip.h Normal file
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@ -0,0 +1,73 @@
#pragma pack(push, 1)
#define MEMZIP_FILE_HEADER_SIGNATURE 0x04034b50
typedef struct
{
uint32_t signature;
uint16_t version;
uint16_t flags;
uint16_t compression_method;
uint16_t last_mod_time;
uint16_t last_mod_date;
uint32_t crc32;
uint32_t compressed_size;
uint32_t uncompressed_size;
uint16_t filename_len;
uint16_t extra_len;
/* char filename[filename_len] */
/* uint8_t extra[extra_len] */
} MEMZIP_FILE_HDR;
#define MEMZIP_CENTRAL_DIRECTORY_SIGNATURE 0x02014b50
typedef struct
{
uint32_t signature;
uint16_t version_made_by;
uint16_t version_read_with;
uint16_t flags;
uint16_t compression_method;
uint16_t last_mod_time;
uint16_t last_mod_date;
uint32_t crc32;
uint32_t compressed_size;
uint32_t uncompressed_size;
uint16_t filename_len;
uint16_t extra_len;
uint16_t disk_num;
uint16_t internal_file_attributes;
uint32_t external_file_attributes;
uint32_t file_header_offset;
/* char filename[filename_len] */
/* uint8_t extra[extra_len] */
} MEMZIP_CENTRAL_DIRECTORY_HDR;
#define MEMZIP_END_OF_CENTRAL_DIRECTORY_SIGNATURE 0x06054b50
typedef struct
{
uint32_t signature;
uint16_t disk_num;
uint16_t central_directory_disk;
uint16_t num_central_directories_this_disk;
uint16_t total_central_directories;
uint32_t central_directory_size;
uint32_t central_directory_offset;
uint16_t comment_len;
/* char comment[comment_len] */
} MEMZIP_END_OF_CENTRAL_DIRECTORY;
#pragma pack(pop)
typedef enum {
MZ_OK = 0, /* (0) Succeeded */
MZ_NO_FILE, /* (1) Could not find the file. */
MZ_FILE_COMPRESSED, /* (2) File is compressed (expecting uncompressed) */
} MEMZIP_RESULT;
MEMZIP_RESULT memzip_locate(const char *filename, void **data, size_t *len);

1
teensy/memzip_files/boot.py Normal file
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@ -0,0 +1 @@
print("Executing boot.py")

11
teensy/memzip_files/src/main.py Normal file
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@ -0,0 +1,11 @@
print("Executing main.py")
x=pyb.led(1)
pyb.delay(100)
x=pyb.led(0)
pyb.delay(100)
x=pyb.led(1)
pyb.delay(100)
x=pyb.led(0)

1
teensy/memzip_files/src/test.py Normal file
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@ -0,0 +1 @@
print("Executing /src/test.py")

1
teensy/memzip_files/test.py Normal file
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@ -0,0 +1 @@
print("Executing /test.py")

6
teensy/mk20dx256.ld
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@ -126,6 +126,12 @@ SECTIONS
_edata = .;
} > RAM
/*
* _staticfs is the place in flash where the static filesystem which
* is concatenated to the .hex file will wind up.
*/
_staticfs = LOADADDR(.data) + SIZEOF(.data);
.noinit (NOLOAD) : {
*(.noinit*)
} > RAM