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Well, this is really starting to work

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XANTRONIX 2017-11-21 22:24:52 +00:00
parent 5302ea3190
commit 00180393ae
10 changed files with 566 additions and 35 deletions
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11
Makefile Normal file
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@ -0,0 +1,11 @@
all:
$(MAKE) -C src all
$(MAKE) -C examples all
install:
$(MAKE) -C src install
$(MAKE) -C examples install
clean:
$(MAKE) -C src clean
$(MAKE) -C examples clean

100
configure vendored Executable file
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@ -0,0 +1,100 @@
#! /bin/sh
OS=`uname -s`
DEBUG=0
create_linux_config_h() {
cat <<EOF > src/config.h
#ifndef _CONFIG_H
#define _CONFIG_H
#include <endian.h>
#endif /* _CONFIG_H */
EOF
}
create_darwin_config_h() {
cat <<EOF > src/config.h
#ifndef _CONFIG_H
#define _CONFIG_H
#include <architecture/byte_order.h>
#ifdef __LITTLE_ENDIAN__
#define __DO_SWAP_BYTES
#endif /* _DO_SWAP_BYTES */
#endif /* _CONFIG_H */
EOF
}
create_common_build_mk() {
if [ "$DEBUG" = 1 ]; then
cat <<'EOF' > mk/build.mk
CGFLAGS = -g -fno-inline
EOF
else
cat <<'EOF' > mk/build.mk
CGFLAGS =
EOF
fi
cat <<'EOF' >> mk/build.mk
CWFLAGS = -Wall
COFLAGS = -O2
CFLAGS = $(CGFLAGS) $(CWFLAGS) $(COFLAGS)
EOF
}
create_linux_build_mk() {
create_common_build_mk $@
cat <<'EOF' >> mk/build.mk
LLFLAGS = -shared -Wl,-soname=$(SONAME)
STATIC = lib$(LIBNAME).a
SONAME_SHORT = lib$(LIBNAME).so
SONAME = $(SONAME_SHORT).$(VERSION_MAJOR)
SONAME_FULL = $(SONAME_SHORT).$(VERSION)
PREFIX = /usr/local
EOF
}
create_darwin_build_mk() {
create_common_build_mk $@
cat <<'EOF' >> mk/build.mk
LLFLAGS = -dynamiclib -current_version $(VERSION)
STATIC = lib$(LIBNAME).a
SONAME_SHORT = lib$(LIBNAME).dylib
SONAME = lib$(LIBNAME).$(VERSION_MAJOR).dylib
SONAME_FULL = lib$(LIBNAME).$(VERSION).dylib
PREFIX = /usr/local
EOF
}
for arg in $@; do
case $arg in
"--enable-debug")
DEBUG=1
;;
esac
done
if [ ! -d "mk" ]; then
mkdir -m 0755 mk
fi
case $OS in
Linux)
create_linux_config_h
create_linux_build_mk
;;
Darwin)
create_darwin_config_h
create_darwin_build_mk
;;
esac

20
examples/Makefile Normal file
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@ -0,0 +1,20 @@
include ../mk/build.mk
CC = $(CROSS)cc
INCLUDE_PATH = ../include
CFLAGS += -I$(INCLUDE_PATH)
LDFLAGS = -L../src -lskipstone
EXAMPLES = read
RM = /bin/rm
all: $(EXAMPLES)
$(EXAMPLES): %: %.c $(STATICLIB)
$(CC) $(CFLAGS) $< -o $@ $(LDFLAGS)
clean:
$(RM) -f $(EXAMPLES)

45
examples/read.c Normal file
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@ -0,0 +1,45 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <skipstone/skipstone.h>
static void usage(int argc, char **argv) {
fprintf(stderr, "usage: %s /dev/rfcommX\n", argv[0]);
exit(1);
}
int main(int argc, char **argv) {
skipstone_watch_link *link;
void *buf;
uint16_t len, endpoint;
if (argc != 2) {
usage(argc, argv);
}
if ((buf = malloc(SKIPSTONE_MESSAGE_MAX_PAYLOAD)) == NULL) {
goto error_malloc_buf;
}
if ((link = skipstone_watch_link_open_serial(argv[1])) == NULL) {
goto error_watch_link_open;
}
while (skipstone_recv(link, buf, &len, &endpoint) >= 0) {
printf("Received message %hu bytes for endpoint %hu\n",
len, endpoint);
}
perror("skipstone_recv()");
skipstone_watch_link_close(link);
return 0;
error_watch_link_open:
free(buf);
error_malloc_buf:
return 1;
}

45
examples/read.c-e Normal file
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@ -0,0 +1,45 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <skipstone/skipstone.h>
static void usage(int argc, char **argv) {
fprintf(stderr, "usage: %s /dev/rfcommX\n", argv[0]);
exit(1);
}
int main(int argc, char **argv) {
skipstone_watch_link *link;
void *buf;
uint16_t len, endpoint;
if (argc != 2) {
usage(argc, argv);
}
if ((buf = malloc(SKIPSTONE_MESSAGE_MAX_PAYLOAD)) == NULL) {
goto error_malloc_buf;
}
if ((link = skipstone_watch_link_open_serial(argv[1])) == NULL) {
goto error_watch_link_open;
}
while (skipstone_recv(link, buf, &len, &endpoint) >= 0) {
printf("Received message %hu bytes for endpoint %hu\n",
len, endpoint);
}
perror("skipstone_recv()");
skipstone_watch_link_close(link);
return 0;
error_watch_link_open:
free(buf);
error_malloc_buf:
return 1;
}

23
include/skipstone.h
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@ -1,23 +0,0 @@
#ifndef _SKIPSTONE_H
#define _SKIPSTONE_H
#include <stdlib.h>
#include <stdint.h>
#define SKIPSTONE_MESSAGE_MAX_PAYLOAD 4096
typedef struct _skipstone_message {
uint16_t size, endpoint;
} skipstone_message;
typedef struct _skipstone_watch_link skipstone_watch_link;
skipstone_watch_link *skipstone_watch_link_open_serial(const char *device);
void skipstone_watch_close(skipstone_watch_link *link);
int16_t skipstone_send(skipstone_watch_link *link, void *buf, uint16_t size);
int16_t skipstone_recv(skipstone_watch_link *link, void *buf, uint16_t size);
#endif /* _SKIPSTONE_H */

31
include/skipstone/skipstone.h Normal file
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@ -0,0 +1,31 @@
#ifndef _SKIPSTONE_H
#define _SKIPSTONE_H
#include <stdlib.h>
#include <stdint.h>
#define SKIPSTONE_MESSAGE_MAX_PAYLOAD 4096
enum skipstone_message_endpoint {
SKIPSTONE_MESSAGE_ENDPOINT_NONE = 0,
SKIPSTONE_MESSAGE_ENDPOINT_FIRMWARE = 1,
SKIPSTONE_MESSAGE_ENDPOINT_TIME = 11,
SKIPSTONE_MESSAGE_ENDPOINT_VERSIONS = 16,
SKIPSTONE_MESSAGE_ENDPOINT_PHONE_VERSION = 17,
SKIPSTONE_MESSAGE_ENDPOINT_SYSTEM_MESSAGE = 18,
SKIPSTONE_MESSAGE_ENDPOINT_MUSIC_CONTROL = 32,
SKIPSTONE_MESSAGE_ENDPOINT_PHONE_CONTROL = 33,
};
typedef struct _skipstone_watch_link skipstone_watch_link;
skipstone_watch_link *skipstone_watch_link_open_serial(const char *device);
int skipstone_watch_link_close(skipstone_watch_link *link);
int skipstone_send(skipstone_watch_link *link, void *buf, uint16_t size, uint16_t endpoint);
int skipstone_recv(skipstone_watch_link *link, void *buf, uint16_t *size, uint16_t *endpoint);
#endif /* _SKIPSTONE_H */

58
src/Makefile Normal file
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@ -0,0 +1,58 @@
include ../mk/build.mk
INCLUDE_PATH = ../include
HEADER_SUBDIR = skipstone
CC = $(CROSS)cc
CFLAGS += -fPIC -I$(INCLUDE_PATH)
LDFLAGS =
HEADERS = skipstone.h
OBJS = skipstone.o
VERSION_MAJOR = 0
VERSION_MINOR = 0.1
VERSION = $(VERSION_MAJOR).$(VERSION_MINOR)
LIBNAME = skipstone
HEADERS_BUILD = $(addprefix $(INCLUDE_PATH)/$(HEADER_SUBDIR)/, $(HEADERS))
AR = $(CROSS)ar
RANLIB = $(CROSS)ranlib
RM = /bin/rm
LN = /bin/ln
RMDIR = /bin/rmdir
INSTALL = /usr/bin/install
all: $(STATIC) $(SONAME_FULL) $(SONAME) $(SONAME_SHORT)
$(STATIC): $(OBJS)
$(AR) rc $(STATIC) $(OBJS)
$(RANLIB) $(STATIC)
$(SONAME_FULL): $(OBJS)
$(CC) $(LLFLAGS) $(OBJS) $(LDFLAGS) -o $(SONAME_FULL)
$(SONAME): $(SONAME_FULL)
$(LN) -s $< $@
$(SONAME_SHORT): $(SONAME_FULL)
$(LN) -s $< $@
$(OBJS): %.o: %.c $(HEADERS_BUILD)
$(CC) $(CFLAGS) -c $<
install: $(SONAME_FULL) $(STATIC)
$(INSTALL) -d -m 0755 $(PREFIX)/lib
$(INSTALL) -c -m 0644 $(STATIC) $(PREFIX)/lib
$(INSTALL) -c -m 0755 $(SONAME_FULL) $(PREFIX)/lib
$(LN) -s -f $(SONAME_FULL) $(PREFIX)/lib/$(SONAME)
$(LN) -s -f $(SONAME_FULL) $(PREFIX)/lib/$(SONAME_SHORT)
$(INSTALL) -d -m 0755 $(PREFIX)/include/$(HEADER_SUBDIR)
$(INSTALL) -c -m 0644 $(HEADERS_BUILD) $(PREFIX)/include/$(HEADER_SUBDIR)
clean:
$(RM) -f $(SONAME_SHORT) $(SONAME) $(SONAME_FULL) $(STATIC) $(OBJS)

138
src/skipstone.c
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@ -1,19 +1,36 @@
#include <string.h> #include <string.h>
#include <fcntl.h>
#include <termios.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <endian.h>
#include <skipstone.h> #include <skipstone/skipstone.h>
enum skipstone_watch_link_type { enum skipstone_watch_link_type {
SKIPSTONE_WATCH_LINK_SERIAL = 1 SKIPSTONE_WATCH_LINK_SERIAL = 1
}; };
struct _skipstone_watch_link { struct _skipstone_watch_link {
enum skipstone_watch_link_type link_type; enum skipstone_watch_link_type type;
union { union {
int serial_fd; struct {
int fd;
struct termios attr_old,
attr_new;
} serial;
}; };
}; };
typedef struct _skipstone_message_header {
uint16_t size,
endpoint;
} skipstone_message_header;
skipstone_watch_link *skipstone_watch_link_open_serial(const char *device) { skipstone_watch_link *skipstone_watch_link_open_serial(const char *device) {
skipstone_watch_link *link; skipstone_watch_link *link;
@ -21,22 +38,127 @@ skipstone_watch_link *skipstone_watch_link_open_serial(const char *device) {
goto error_malloc_link; goto error_malloc_link;
} }
link->type = SKIPSTONE_WATCH_LINK_SERIAL;
if ((link->serial.fd = open(device, O_RDWR | O_NOCTTY)) < 0) {
goto error_open;
}
if (tcgetattr(link->serial.fd, &link->serial.attr_old) < 0) {
goto error_io;
}
memset(&link->serial.attr_new, 0, sizeof(struct termios));
link->serial.attr_new.c_cflag = CS8 | HUPCL;
link->serial.attr_new.c_ispeed = B115200;
link->serial.attr_new.c_ospeed = B115200;
link->serial.attr_new.c_iflag = IGNPAR;
link->serial.attr_new.c_oflag = 0;
link->serial.attr_new.c_lflag = 0;
link->serial.attr_new.c_cc[VTIME] = 0;
link->serial.attr_new.c_cc[VMIN] = 1;
if (tcsetattr(link->serial.fd, TCSANOW, &link->serial.attr_new) < 0) {
goto error_io;
}
if (fcntl(link->serial.fd, F_SETFL, 0) < 0) {
goto error_io;
}
return link; return link;
error_io:
close(link->serial.fd);
error_open:
free(link);
error_malloc_link: error_malloc_link:
return NULL; return NULL;
} }
void skipstone_watch_close(skipstone_watch_link *link) { static int _watch_link_close_serial(skipstone_watch_link *link) {
if (tcsetattr(link->serial.fd, TCSANOW, &link->serial.attr_old) < 0) {
goto error_io;
} }
int16_t skipstone_send(skipstone_watch_link *link, void *buf, uint16_t size) { return close(link->serial.fd);
error_io:
return -1;
} }
int16_t skipstone_recv(skipstone_watch_link *link, void *buf, uint16_t size) { int skipstone_watch_link_close(skipstone_watch_link *link) {
switch (link->type) {
case SKIPSTONE_WATCH_LINK_SERIAL: {
return _watch_link_close_serial(link);
}
default: break;
}
return -1;
}
int skipstone_send(skipstone_watch_link *link, void *buf, uint16_t size, uint16_t endpoint) {
skipstone_message_header header;
if (size > SKIPSTONE_MESSAGE_MAX_PAYLOAD) {
goto error_toobig;
}
header.size = htobe16(size);
header.endpoint = htobe16(endpoint);
if (write(link->serial.fd, &header, sizeof(header)) < 0) {
goto error_io;
}
if (write(link->serial.fd, buf, (size_t)size) < 0) {
goto error_io;
}
return 0;
error_io:
error_toobig:
return -1;
}
int skipstone_recv(skipstone_watch_link *link, void *buf, uint16_t *size, uint16_t *endpoint) {
skipstone_message_header header;
while (1) {
ssize_t len_read;
size_t len_wanted, offset = 0;
if (read(link->serial.fd, &header, sizeof(header)) < 0) {
goto error_io;
}
len_wanted = (size_t)be16toh(header.size);
if (len_wanted > SKIPSTONE_MESSAGE_MAX_PAYLOAD) {
goto error_io;
}
while (len_wanted) {
if ((len_read = read(link->serial.fd, (uint8_t *)buf + offset, len_wanted)) < 0) {
goto error_io;
}
len_wanted -= len_read;
offset += len_read;
}
*size = be16toh(header.size);
*endpoint = be16toh(header.endpoint);
return 0;
}
error_io:
return -1;
} }

138
src/skipstone.c-e
View file

@ -1,19 +1,36 @@
#include <string.h> #include <string.h>
#include <fcntl.h>
#include <termios.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <endian.h>
#include <skipstone.h> #include <skipstone/skipstone.h>
enum skipstone_watch_link_type { enum skipstone_watch_link_type {
SKIPSTONE_WATCH_LINK_SERIAL = 1 SKIPSTONE_WATCH_LINK_SERIAL = 1
}; };
struct _skipstone_watch_link { struct _skipstone_watch_link {
enum skipstone_watch_link_type link_type; enum skipstone_watch_link_type type;
union { union {
int serial_fd; struct {
int fd;
struct termios attr_old,
attr_new;
} serial;
}; };
}; };
typedef struct _skipstone_message_header {
uint16_t size,
endpoint;
} skipstone_message_header;
skipstone_watch_link *skipstone_watch_link_open_serial(const char *device) { skipstone_watch_link *skipstone_watch_link_open_serial(const char *device) {
skipstone_watch_link *link; skipstone_watch_link *link;
@ -21,22 +38,127 @@ skipstone_watch_link *skipstone_watch_link_open_serial(const char *device) {
goto error_malloc_link; goto error_malloc_link;
} }
link->type = SKIPSTONE_WATCH_LINK_SERIAL;
if ((link->serial.fd = open(device, O_RDWR | O_NOCTTY)) < 0) {
goto error_open;
}
if (tcgetattr(link->serial.fd, &link->serial.attr_old) < 0) {
goto error_io;
}
memset(&link->serial.attr_new, 0, sizeof(struct termios));
link->serial.attr_new.c_cflag = CS8 | HUPCL;
link->serial.attr_new.c_ispeed = B115200;
link->serial.attr_new.c_ospeed = B115200;
link->serial.attr_new.c_iflag = IGNPAR;
link->serial.attr_new.c_oflag = 0;
link->serial.attr_new.c_lflag = 0;
link->serial.attr_new.c_cc[VTIME] = 0;
link->serial.attr_new.c_cc[VMIN] = 1;
if (tcsetattr(link->serial.fd, TCSANOW, &link->serial.attr_new) < 0) {
goto error_io;
}
if (fcntl(link->serial.fd, F_SETFL, 0) < 0) {
goto error_io;
}
return link; return link;
error_io:
close(link->serial.fd);
error_open:
free(link);
error_malloc_link: error_malloc_link:
return NULL; return NULL;
} }
void skipstone_watch_close(skipstone_watch_link *link) { static int _watch_link_close_serial(skipstone_watch_link *link) {
if (tcsetattr(link->serial.fd, TCSANOW, &link->serial.attr_old) < 0) {
goto error_io;
} }
int16_t skipstone_send(skipstone_watch_link *link, void *buf, uint16_t size) { return close(link->serial.fd);
error_io:
return -1;
} }
int16_t skipstone_recv(skipstone_watch_link *link, void *buf, uint16_t size) { int skipstone_watch_link_close(skipstone_watch_link *link) {
switch (link->type) {
case SKIPSTONE_WATCH_LINK_SERIAL: {
return _watch_link_close_serial(link);
}
default: break;
}
return -1;
}
int skipstone_send(skipstone_watch_link *link, void *buf, uint16_t size, uint16_t endpoint) {
skipstone_message_header header;
if (size > SKIPSTONE_MESSAGE_MAX_PAYLOAD) {
goto error_toobig;
}
header.size = htobe16(size);
header.endpoint = htobe16(endpoint);
if (write(link->serial.fd, &header, sizeof(header)) < 0) {
goto error_io;
}
if (write(link->serial.fd, buf, (size_t)size) < 0) {
goto error_io;
}
return 0;
error_io:
error_toobig:
return -1;
}
int skipstone_recv(skipstone_watch_link *link, void *buf, uint16_t *size, uint16_t *endpoint) {
skipstone_message_header header;
while (1) {
ssize_t len_read;
size_t len_wanted, offset = 0;
if (read(link->serial.fd, &header, sizeof(header)) < 0) {
goto error_io;
}
len_wanted = (size_t)be16toh(header.size);
if (len_wanted > SKIPSTONE_MESSAGE_MAX_PAYLOAD) {
goto error_io;
}
while (len_wanted) {
if ((len_read = read(link->serial.fd, (uint8_t *)buf + offset, len_wanted)) < 0) {
goto error_io;
}
len_wanted -= len_read;
offset += len_read;
}
*size = be16toh(header.size);
*endpoint = be16toh(header.endpoint);
return 0;
}
error_io:
return -1;
} }