From 1df66a73b11442b99481d69fc665d31cfc83041a Mon Sep 17 00:00:00 2001 From: "Lelik P. Korchagin" Date: Sat, 24 Dec 2022 12:04:40 +0300 Subject: [PATCH] * initial import --- .gitignore | 5 ++ Makefile | 26 +++++++ main.c | 215 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 246 insertions(+) create mode 100644 .gitignore create mode 100644 Makefile create mode 100644 main.c diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..b3ad36b --- /dev/null +++ b/.gitignore @@ -0,0 +1,5 @@ +*.o +*~ +*.bak +t +core diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..67eb4f5 --- /dev/null +++ b/Makefile @@ -0,0 +1,26 @@ +ifeq ($(CROSS), y) +TOOLKIT ?= /home/lelik/firmware/output/udmurt/host/bin +CC = $(TOOLKIT)/arm-linux-gcc +else +CC=gcc +endif + +LDFLAGS= -ggdb $(shell pkg-config --libs glib-2.0) -lrt + +CPPFLAGS=-Wall \ + -Wno-address-of-packed-member \ + -D_GNU_SOURCE \ + -ggdb \ + -pthread \ + $(shell pkg-config --cflags glib-2.0) + +all: zr10 + +%.o: %.c %.h + $(CC) -c -o $@ $< $(CPPFLAGS) + +zr10: main.o + $(CC) -pthread -o $@ $^ $(LDFLAGS) + +clean: + rm -f zr10 core *~ *.o diff --git a/main.c b/main.c new file mode 100644 index 0000000..e945e25 --- /dev/null +++ b/main.c @@ -0,0 +1,215 @@ +# include +# include +# include +# include +# include +# include +# include +# include +# include +# include +# include +# include +# include + +uint16_t crc16_xmodem(void* data, size_t len) +{ + static const uint16_t crcs[256] = + { + 0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7, + 0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef, + 0x1231, 0x0210, 0x3273, 0x2252, 0x52b5, 0x4294, 0x72f7, 0x62d6, + 0x9339, 0x8318, 0xb37b, 0xa35a, 0xd3bd, 0xc39c, 0xf3ff, 0xe3de, + 0x2462, 0x3443, 0x0420, 0x1401, 0x64e6, 0x74c7, 0x44a4, 0x5485, + 0xa56a, 0xb54b, 0x8528, 0x9509, 0xe5ee, 0xf5cf, 0xc5ac, 0xd58d, + 0x3653, 0x2672, 0x1611, 0x0630, 0x76d7, 0x66f6, 0x5695, 0x46b4, + 0xb75b, 0xa77a, 0x9719, 0x8738, 0xf7df, 0xe7fe, 0xd79d, 0xc7bc, + 0x48c4, 0x58e5, 0x6886, 0x78a7, 0x0840, 0x1861, 0x2802, 0x3823, + 0xc9cc, 0xd9ed, 0xe98e, 0xf9af, 0x8948, 0x9969, 0xa90a, 0xb92b, + 0x5af5, 0x4ad4, 0x7ab7, 0x6a96, 0x1a71, 0x0a50, 0x3a33, 0x2a12, + 0xdbfd, 0xcbdc, 0xfbbf, 0xeb9e, 0x9b79, 0x8b58, 0xbb3b, 0xab1a, + 0x6ca6, 0x7c87, 0x4ce4, 0x5cc5, 0x2c22, 0x3c03, 0x0c60, 0x1c41, + 0xedae, 0xfd8f, 0xcdec, 0xddcd, 0xad2a, 0xbd0b, 0x8d68, 0x9d49, + 0x7e97, 0x6eb6, 0x5ed5, 0x4ef4, 0x3e13, 0x2e32, 0x1e51, 0x0e70, + 0xff9f, 0xefbe, 0xdfdd, 0xcffc, 0xbf1b, 0xaf3a, 0x9f59, 0x8f78, + 0x9188, 0x81a9, 0xb1ca, 0xa1eb, 0xd10c, 0xc12d, 0xf14e, 0xe16f, + 0x1080, 0x00a1, 0x30c2, 0x20e3, 0x5004, 0x4025, 0x7046, 0x6067, + 0x83b9, 0x9398, 0xa3fb, 0xb3da, 0xc33d, 0xd31c, 0xe37f, 0xf35e, + 0x02b1, 0x1290, 0x22f3, 0x32d2, 0x4235, 0x5214, 0x6277, 0x7256, + 0xb5ea, 0xa5cb, 0x95a8, 0x8589, 0xf56e, 0xe54f, 0xd52c, 0xc50d, + 0x34e2, 0x24c3, 0x14a0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405, + 0xa7db, 0xb7fa, 0x8799, 0x97b8, 0xe75f, 0xf77e, 0xc71d, 0xd73c, + 0x26d3, 0x36f2, 0x0691, 0x16b0, 0x6657, 0x7676, 0x4615, 0x5634, + 0xd94c, 0xc96d, 0xf90e, 0xe92f, 0x99c8, 0x89e9, 0xb98a, 0xa9ab, + 0x5844, 0x4865, 0x7806, 0x6827, 0x18c0, 0x08e1, 0x3882, 0x28a3, + 0xcb7d, 0xdb5c, 0xeb3f, 0xfb1e, 0x8bf9, 0x9bd8, 0xabbb, 0xbb9a, + 0x4a75, 0x5a54, 0x6a37, 0x7a16, 0x0af1, 0x1ad0, 0x2ab3, 0x3a92, + 0xfd2e, 0xed0f, 0xdd6c, 0xcd4d, 0xbdaa, 0xad8b, 0x9de8, 0x8dc9, + 0x7c26, 0x6c07, 0x5c64, 0x4c45, 0x3ca2, 0x2c83, 0x1ce0, 0x0cc1, + 0xef1f, 0xff3e, 0xcf5d, 0xdf7c, 0xaf9b, 0xbfba, 0x8fd9, 0x9ff8, + 0x6e17, 0x7e36, 0x4e55, 0x5e74, 0x2e93, 0x3eb2, 0x0ed1, 0x1ef0 + }; + + uint16_t crc = 0; + + for (int i = 0; i < len; i++) { + crc = (crc << 8) ^ crcs[((crc >> 8) ^ ((uint8_t*)data)[i]) & 0x00FF]; + } + return crc; +} + +struct zr10 +{ + uint16_t x5566; + uint8_t need_ack :1; + uint8_t is_ack :1; + uint16_t data_len; + uint16_t seq; + uint8_t command; + uint8_t data[0]; +} __attribute__((packed)); + +int zr10_command(uint8_t *buffer, uint8_t cmd, uint8_t *data, size_t len) +{ + struct zr10 *zr10 = (struct zr10 *)buffer; + + zr10->x5566 = htobe16(0x5566); + zr10->need_ack = 1; + zr10->is_ack = 0; + zr10->seq = htole16(0); + zr10->command = cmd; + + if (data != NULL && len > 0) { + memcpy(zr10->data, data, len); + } + zr10->data_len = htole16(len); + + uint16_t crc = htole16(crc16_xmodem(zr10, sizeof(struct zr10) + len)); + memcpy(zr10->data + zr10->data_len, &crc, sizeof(crc)); + + return sizeof(zr10) + len + sizeof(crc); +} + +struct application +{ + GMainLoop *loop; + gboolean done; +}; + +static gboolean stop(gpointer data) +{ + struct application *app = (struct application *)data; + g_main_loop_quit(app->loop); + return app->done = TRUE; +} + +extern gboolean got_ack(GIOChannel *channel, GIOCondition cond, gpointer data) +{ + struct application *app = (struct application *)data; + int udp = g_io_channel_unix_get_fd(channel); + struct sockaddr_in from; + socklen_t from_len = sizeof(from); + uint8_t ack[2048]; + + int n = recvfrom(udp, ack, sizeof(ack), MSG_WAITALL, (struct sockaddr *)&from, &from_len); + if (n > 0) { + printf("%-15s: ", inet_ntoa(from.sin_addr)); + for (int i = 0; i < n; i++) { + printf(" %02x", ack[i]); + } + printf("\n"); + } else { + perror("recv"); + } + + g_main_loop_quit(app->loop); + return app->done = TRUE; +} + +# define PORT 37260 + +int main(int argc, char *argv[]) +{ + struct application app; + uint8_t buffer[128]; + int udp, on = 1; + struct sockaddr_in addr; + + uint8_t command = 0; + int8_t data[256]; + int len = 0; + + if ((udp = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { + perror("socket"); + return 1; + } + + if (setsockopt(udp, SOL_SOCKET, SO_BROADCAST, &on, sizeof(on)) < 0) { + perror("setsockopt"); + return 1; + } + + memset(&addr, 0, sizeof(addr)); + addr.sin_family = AF_INET; + addr.sin_addr.s_addr = htonl(INADDR_ANY); + addr.sin_port = htons(0); + + bind(udp, (struct sockaddr *)&addr, sizeof(addr)); + + g_unix_signal_add (SIGINT, stop, &app); + g_unix_signal_add (SIGHUP, stop, &app); + g_unix_signal_add (SIGTERM, stop, &app); + + GIOChannel *ch = g_io_channel_unix_new(udp); + g_io_add_watch(ch, G_IO_IN, got_ack, &app); + + if (argc == 2 && argv[1][0] == '.') { + command = 0x08; + data[0] = 1; + len = 1; + } else { + command = 0x07; + len = 2; + + if (argc > 2) { + data[1] = atoi(argv[2]); + if (data[1] > 100) { + data[1] = 100; + } else if (data[1] < -100) { + data[1] = -100; + } + } + + if (argc > 1) { + data[0] = atoi(argv[1]); + if (data[0] > 100) { + data[0] = 100; + } else if (data[0] < -100) { + data[0] = -100; + } + } + } + + addr.sin_addr.s_addr = htonl(INADDR_BROADCAST); + addr.sin_port = htons(PORT); + + int n = zr10_command(buffer, command, (uint8_t*)data, len); + printf("%-15s: ", inet_ntoa(addr.sin_addr)); + for (int i = 0; i < n; i++) { + printf(" %02x", buffer[i]); + } + printf("\n"); + + if (sendto(udp, buffer, n, MSG_CONFIRM, (const struct sockaddr *)&addr, sizeof(addr)) < 0) { + perror("send"); + } + +# if 1 + app.loop = g_main_loop_new(NULL, FALSE); + g_main_loop_run(app.loop); + g_main_loop_unref(app.loop); +# endif + + close(udp); + return 0; +} -- 2.39.5