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-rw-r--r--src/host/osmocon/osmocon.c1558
1 files changed, 1558 insertions, 0 deletions
diff --git a/src/host/osmocon/osmocon.c b/src/host/osmocon/osmocon.c
new file mode 100644
index 0000000..7f74f8f
--- /dev/null
+++ b/src/host/osmocon/osmocon.c
@@ -0,0 +1,1558 @@
+/* osmocon */
+
+/* (C) 2010 by Harald Welte <laforge@gnumonks.org>
+ * (C) 2010 by Holger Hans Peter Freyther <zecke@selfish.org>
+ * (C) 2010 by Steve Markgraf <steve@steve-m.de>
+ *
+ * All Rights Reserved
+ *
+ * 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.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdint.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <termios.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/un.h>
+
+#include <sercomm.h>
+
+#include <osmocom/core/linuxlist.h>
+#include <osmocom/core/select.h>
+#include <osmocom/core/talloc.h>
+#include <osmocom/core/timer.h>
+
+#include <arpa/inet.h>
+
+#define MODEM_BAUDRATE B115200
+#define MAX_DNLOAD_SIZE 0xFFFF
+#define MAX_HDR_SIZE 128
+#define MAGIC_OFFSET 0x3be2
+
+#define DEFAULT_BEACON_INTERVAL 50000
+#define ROMLOAD_INIT_BAUDRATE B19200
+#define ROMLOAD_DL_BAUDRATE B115200
+#define ROMLOAD_BLOCK_HDR_LEN 10
+#define ROMLOAD_ADDRESS 0x820000
+
+#define MTK_INIT_BAUDRATE B19200
+#define MTK_ADDRESS 0x40001400
+#define MTK_BLOCK_SIZE 1024
+
+struct tool_server *tool_server_for_dlci[256];
+
+/**
+ * a connection from some other tool
+ */
+struct tool_connection {
+ struct tool_server *server;
+ struct llist_head entry;
+ struct osmo_fd fd;
+};
+
+/**
+ * server for a tool
+ */
+struct tool_server {
+ struct osmo_fd bfd;
+ uint8_t dlci;
+ struct llist_head connections;
+};
+
+
+enum dnload_state {
+ WAITING_PROMPT1,
+ WAITING_PROMPT2,
+ DOWNLOADING,
+};
+
+enum romload_state {
+ WAITING_IDENTIFICATION,
+ WAITING_PARAM_ACK,
+ SENDING_BLOCKS,
+ SENDING_LAST_BLOCK,
+ LAST_BLOCK_SENT,
+ WAITING_BLOCK_ACK,
+ WAITING_CHECKSUM_ACK,
+ WAITING_BRANCH_ACK,
+ FINISHED,
+};
+
+enum mtk_state {
+ MTK_INIT_1,
+ MTK_INIT_2,
+ MTK_INIT_3,
+ MTK_INIT_4,
+ MTK_WAIT_WRITE_ACK,
+ MTK_WAIT_ADDR_ACK,
+ MTK_WAIT_SIZE_ACK,
+ MTK_SENDING_BLOCKS,
+ MTK_WAIT_BRANCH_CMD_ACK,
+ MTK_WAIT_BRANCH_ADDR_ACK,
+ MTK_FINISHED,
+};
+
+enum dnload_mode {
+ MODE_C123,
+ MODE_C123xor,
+ MODE_C140,
+ MODE_C140xor,
+ MODE_C155,
+ MODE_ROMLOAD,
+ MODE_MTK,
+};
+
+struct dnload {
+ enum dnload_state state;
+ enum romload_state romload_state;
+ enum mtk_state mtk_state;
+ enum dnload_mode mode;
+ struct osmo_fd serial_fd;
+ char *filename;
+ char *chainload_filename;
+
+ int expect_hdlc;
+
+ int dump_rx;
+ int dump_tx;
+ int beacon_interval;
+
+ /* data to be downloaded */
+ uint8_t *data;
+ int data_len;
+
+ uint8_t *write_ptr;
+
+ /* romload: block to be downloaded */
+ uint8_t *block;
+ int block_len;
+ uint8_t block_number;
+ uint16_t block_payload_size;
+ int romload_dl_checksum;
+ uint8_t *block_ptr;
+ uint8_t load_address[4];
+
+ uint8_t mtk_send_size[4];
+ int block_count;
+ int echo_bytecount;
+
+ struct tool_server layer2_server;
+ struct tool_server loader_server;
+};
+
+
+static struct dnload dnload;
+static struct osmo_timer_list tick_timer;
+
+/* Compal ramloader specific */
+static const uint8_t phone_prompt1[] = { 0x1b, 0xf6, 0x02, 0x00, 0x41, 0x01, 0x40 };
+static const uint8_t dnload_cmd[] = { 0x1b, 0xf6, 0x02, 0x00, 0x52, 0x01, 0x53 };
+static const uint8_t phone_prompt2[] = { 0x1b, 0xf6, 0x02, 0x00, 0x41, 0x02, 0x43 };
+static const uint8_t phone_ack[] = { 0x1b, 0xf6, 0x02, 0x00, 0x41, 0x03, 0x42 };
+static const uint8_t phone_nack_magic[]= { 0x1b, 0xf6, 0x02, 0x00, 0x41, 0x03, 0x57 };
+static const uint8_t phone_nack[] = { 0x1b, 0xf6, 0x02, 0x00, 0x45, 0x53, 0x16 };
+static const uint8_t ftmtool[] = { 0x66, 0x74, 0x6d, 0x74, 0x6f, 0x6f, 0x6c };
+static const uint8_t phone_magic[] = { 0x31, 0x30, 0x30, 0x33 }; /* "1003" */
+
+/* The C123 has a hard-coded check inside the ramloader that requires the
+ * following bytes to be always the first four bytes of the image */
+static const uint8_t data_hdr_c123[] = { 0xee, 0x4c, 0x9f, 0x63 };
+
+/* The C155 doesn't have some strange restriction on what the first four bytes
+ * have to be, but it starts the ramloader in THUMB mode. We use the following
+ * four bytes to switch back to ARM mode:
+ 800100: 4778 bx pc
+ 800102: 46c0 nop ; (mov r8, r8)
+ */
+static const uint8_t data_hdr_c155[] = { 0x78, 0x47, 0xc0, 0x46 };
+
+/* Calypso romloader specific */
+static const uint8_t romload_ident_cmd[] = { 0x3c, 0x69 }; /* <i */
+static const uint8_t romload_abort_cmd[] = { 0x3c, 0x61 }; /* <a */
+static const uint8_t romload_write_cmd[] = { 0x3c, 0x77 }; /* <w */
+static const uint8_t romload_checksum_cmd[] = { 0x3c, 0x63 }; /* <c */
+static const uint8_t romload_branch_cmd[] = { 0x3c, 0x62 }; /* <b */
+static const uint8_t romload_ident_ack[] = { 0x3e, 0x69 }; /* >i */
+static const uint8_t romload_param_ack[] = { 0x3e, 0x70 }; /* >p */
+static const uint8_t romload_param_nack[] = { 0x3e, 0x50 }; /* >P */
+static const uint8_t romload_block_ack[] = { 0x3e, 0x77 }; /* >w */
+static const uint8_t romload_block_nack[] = { 0x3e, 0x57 }; /* >W */
+static const uint8_t romload_checksum_ack[] = { 0x3e, 0x63 }; /* >c */
+static const uint8_t romload_checksum_nack[] = { 0x3e, 0x43 }; /* >C */
+static const uint8_t romload_branch_ack[] = { 0x3e, 0x62 }; /* >b */
+static const uint8_t romload_branch_nack[] = { 0x3e, 0x42 }; /* >B */
+
+/* romload_param: {"<p", uint8_t baudrate, uint8_t dpll, uint16_t memory_config,
+ * uint8_t strobe_af, uint32_t uart_timeout} */
+
+static const uint8_t romload_param[] = { 0x3c, 0x70, 0x00, 0x00, 0x00, 0x04,
+ 0x00, 0x00, 0x00, 0x00, 0x00 };
+
+/* MTK romloader specific */
+static const uint8_t mtk_init_cmd[] = { 0xa0, 0x0a, 0x50, 0x05 };
+static const uint8_t mtk_init_resp[] = { 0x5f, 0xf5, 0xaf, 0xfa };
+static const uint8_t mtk_command[] = { 0xa1, 0xa2, 0xa4, 0xa8 };
+
+/* FIXME: this routine is more or less what openbsc/src/rs232:rs232_setup()
+ * does, we should move it to libosmocore at some point */
+static int serial_init(const char *serial_port)
+{
+ int rc, serial_fd, v24;
+ struct termios tio;
+
+ serial_fd = open(serial_port, O_RDWR | O_NOCTTY | O_NDELAY);
+ if (serial_fd < 0) {
+ perror("cannot open serial port");
+ return serial_fd;
+ }
+
+ //fcntl(serial_fd, F_SETFL, 0);
+
+ /* Configure serial interface */
+ rc = tcgetattr(serial_fd, &tio);
+ if (rc < 0) {
+ perror("tcgetattr()");
+ return rc;
+ }
+ cfsetispeed(&tio, MODEM_BAUDRATE);
+ cfsetospeed(&tio, MODEM_BAUDRATE);
+ tio.c_cflag &= ~(PARENB | CSTOPB | CSIZE | CRTSCTS);
+ tio.c_cflag |= (CREAD | CLOCAL | CS8);
+ tio.c_lflag &= ~(ICANON | ECHO | ECHOE | ISIG);
+ tio.c_iflag |= (INPCK | ISTRIP);
+ tio.c_iflag &= ~(ISTRIP | IXON | IXOFF | IGNBRK | INLCR | ICRNL | IGNCR);
+ tio.c_oflag &= ~(OPOST | ONLCR);
+ rc = tcsetattr(serial_fd, TCSANOW, &tio);
+ if (rc < 0) {
+ perror("tcsetattr()");
+ return rc;
+ }
+
+ /* set ready to read/write */
+ v24 = TIOCM_DTR | TIOCM_RTS;
+ rc = ioctl(serial_fd, TIOCMBIS, &v24);
+ if (rc < 0) {
+ perror("ioctl(TIOCMBIS)");
+ return rc;
+ }
+
+ return serial_fd;
+}
+
+static int serial_set_baudrate(speed_t baudrate)
+{
+ int rc;
+ struct termios tio;
+
+ rc = tcgetattr(dnload.serial_fd.fd, &tio);
+ if (rc < 0) {
+ perror("tcgetattr()");
+ return rc;
+ }
+ cfsetispeed(&tio, baudrate);
+ cfsetospeed(&tio, baudrate);
+
+ rc = tcsetattr(dnload.serial_fd.fd, TCSANOW, &tio);
+ return rc;
+}
+
+static void beacon_timer_cb(void *p)
+{
+ int rc;
+
+ if (dnload.romload_state == WAITING_IDENTIFICATION) {
+ printf("Sending Calypso romloader beacon...\n");
+ rc = write(dnload.serial_fd.fd, romload_ident_cmd,
+ sizeof(romload_ident_cmd));
+
+ if (!(rc == sizeof(romload_ident_cmd)))
+ printf("Error sending identification beacon\n");
+
+ osmo_timer_schedule(p, 0, dnload.beacon_interval);
+ }
+}
+
+static void mtk_timer_cb(void *p)
+{
+ int rc;
+
+ if (dnload.mtk_state == MTK_INIT_1) {
+ printf("Sending MTK romloader beacon...\n");
+ rc = write(dnload.serial_fd.fd, &mtk_init_cmd[0], 1);
+
+ if (!(rc == 1))
+ printf("Error sending identification beacon\n");
+
+ osmo_timer_schedule(p, 0, dnload.beacon_interval);
+ }
+}
+
+/* Read the to-be-downloaded file, prepend header and length, append XOR sum */
+int read_file(const char *filename)
+{
+ int fd, rc, i;
+ struct stat st;
+ const uint8_t *hdr = NULL;
+ int payload_size;
+ int hdr_len = 0;
+ uint8_t *file_data;
+ uint16_t tot_len;
+ uint8_t nibble;
+ uint8_t running_xor = 0x02;
+
+ fd = open(filename, O_RDONLY);
+ if (fd < 0) {
+ perror("opening file");
+ exit(1);
+ }
+
+ rc = fstat(fd, &st);
+ if (st.st_size > MAX_DNLOAD_SIZE) {
+ fprintf(stderr, "The maximum file size is 64kBytes (%u bytes)\n",
+ MAX_DNLOAD_SIZE);
+ return -EFBIG;
+ }
+
+ free(dnload.data);
+ dnload.data = NULL;
+
+ if (dnload.mode == MODE_C140 || dnload.mode == MODE_C140xor) {
+ if (st.st_size < (MAGIC_OFFSET + sizeof(phone_magic)))
+ payload_size = MAGIC_OFFSET + sizeof(phone_magic);
+ else {
+ printf("\nThe filesize is larger than 15kb, code on "
+ "the magic address will be overwritten!\nUse "
+ "loader.bin and upload the application with "
+ "osmoload instead!\n\n");
+ payload_size = st.st_size;
+ }
+ } else
+ payload_size = st.st_size;
+
+ dnload.data = malloc(MAX_HDR_SIZE + payload_size);
+
+ if (!dnload.data) {
+ close(fd);
+ fprintf(stderr, "No memory\n");
+ return -ENOMEM;
+ }
+
+ /* copy in the header, if any */
+ switch (dnload.mode) {
+ case MODE_C155:
+ hdr = data_hdr_c155;
+ hdr_len = sizeof(data_hdr_c155);
+ break;
+ case MODE_C140:
+ case MODE_C140xor:
+ case MODE_C123:
+ case MODE_C123xor:
+ hdr = data_hdr_c123;
+ hdr_len = sizeof(data_hdr_c123);
+ break;
+ case MODE_ROMLOAD:
+ break;
+ default:
+ break;
+ }
+
+ if (hdr && hdr_len)
+ memcpy(dnload.data, hdr, hdr_len);
+
+ /* 2 bytes for length + header */
+ file_data = dnload.data + 2 + hdr_len;
+
+ /* write the length, keep running XOR */
+ tot_len = hdr_len + payload_size;
+ nibble = tot_len >> 8;
+ dnload.data[0] = nibble;
+ running_xor ^= nibble;
+ nibble = tot_len & 0xff;
+ dnload.data[1] = nibble;
+ running_xor ^= nibble;
+
+ if (hdr_len && hdr) {
+ memcpy(dnload.data+2, hdr, hdr_len);
+
+ for (i = 0; i < hdr_len; i++)
+ running_xor ^= hdr[i];
+ }
+
+ rc = read(fd, file_data, st.st_size);
+ if (rc < 0) {
+ perror("error reading file\n");
+ free(dnload.data);
+ dnload.data = NULL;
+ close(fd);
+ return -EIO;
+ }
+ if (rc < st.st_size) {
+ free(dnload.data);
+ dnload.data = NULL;
+ close(fd);
+ fprintf(stderr, "Short read of file (%d < %d)\n",
+ rc, (int)st.st_size);
+ return -EIO;
+ }
+
+ close(fd);
+
+ dnload.data_len = (file_data+payload_size) - dnload.data;
+
+ /* fill memory between data end and magic, add magic */
+ if(dnload.mode == MODE_C140 || dnload.mode == MODE_C140xor) {
+ if (st.st_size < MAGIC_OFFSET)
+ memset(file_data + st.st_size, 0x00,
+ payload_size - st.st_size);
+ memcpy(dnload.data + MAGIC_OFFSET, phone_magic,
+ sizeof(phone_magic));
+ }
+
+ /* calculate XOR sum */
+ for (i = 0; i < payload_size; i++)
+ running_xor ^= file_data[i];
+
+ dnload.data[dnload.data_len++] = running_xor;
+
+ /* initialize write pointer to start of data */
+ dnload.write_ptr = dnload.data;
+
+ printf("read_file(%s): file_size=%u, hdr_len=%u, dnload_len=%u\n",
+ filename, (int)st.st_size, hdr_len, dnload.data_len);
+
+ return 0;
+}
+
+static void osmocon_osmo_hexdump(const uint8_t *data, unsigned int len)
+{
+ int n;
+
+ for (n=0; n < len; n++)
+ printf("%02x ", data[n]);
+ printf(" ");
+ for (n=0; n < len; n++)
+ if (isprint(data[n]))
+ putchar(data[n]);
+ else
+ putchar('.');
+ printf("\n");
+}
+
+static int romload_prepare_block(void)
+{
+ int i;
+
+ int block_checksum = 5;
+ int remaining_bytes;
+ int fill_bytes;
+ uint8_t *block_data;
+ uint32_t block_address;
+
+ dnload.block_len = ROMLOAD_BLOCK_HDR_LEN + dnload.block_payload_size;
+
+ /* if first block, allocate memory */
+ if (!dnload.block_number) {
+ dnload.block = malloc(dnload.block_len);
+ if (!dnload.block) {
+ fprintf(stderr, "No memory\n");
+ return -ENOMEM;
+ }
+ dnload.romload_dl_checksum = 0;
+ /* initialize write pointer to start of data */
+ dnload.write_ptr = dnload.data;
+ }
+
+ block_address = ROMLOAD_ADDRESS +
+ (dnload.block_number * dnload.block_payload_size);
+
+ /* prepare our block header (10 bytes) */
+ memcpy(dnload.block, romload_write_cmd, sizeof(romload_write_cmd));
+ dnload.block[2] = 0x01; /* block index */
+ /* should normally be the block number, but hangs when sending !0x01 */
+ dnload.block[3] = 0x01; /* dnload.block_number+1 */
+ dnload.block[4] = (dnload.block_payload_size >> 8) & 0xff;
+ dnload.block[5] = dnload.block_payload_size & 0xff;
+ dnload.block[6] = (block_address >> 24) & 0xff;
+ dnload.block[7] = (block_address >> 16) & 0xff;
+ dnload.block[8] = (block_address >> 8) & 0xff;
+ dnload.block[9] = block_address & 0xff;
+
+ block_data = dnload.block + ROMLOAD_BLOCK_HDR_LEN;
+ dnload.write_ptr = dnload.data + 2 +
+ (dnload.block_payload_size * dnload.block_number);
+
+ remaining_bytes = dnload.data_len - 3 -
+ (dnload.block_payload_size * dnload.block_number);
+
+ memcpy(block_data, dnload.write_ptr, dnload.block_payload_size);
+
+ if (remaining_bytes <= dnload.block_payload_size) {
+ fill_bytes = (dnload.block_payload_size - remaining_bytes);
+ printf("Preparing the last block, filling %i bytes,",
+ fill_bytes);
+ memset(block_data + remaining_bytes, 0x00, fill_bytes);
+ dnload.romload_state = SENDING_LAST_BLOCK;
+ } else {
+ dnload.romload_state = SENDING_BLOCKS;
+ printf("Preparing block %i,", dnload.block_number+1);
+ }
+
+ /* block checksum is lsb of ~(5 + block_size_lsb + all bytes of
+ * block_address + all data bytes) */
+ for (i = 5; i < ROMLOAD_BLOCK_HDR_LEN + dnload.block_payload_size; i++)
+ block_checksum += dnload.block[i];
+
+ /* checksum is lsb of ~(sum of LSBs of all block checksums) */
+ printf(" block checksum is 0x%02x \n", ~(block_checksum) & 0xff);
+ dnload.romload_dl_checksum += ~(block_checksum) & 0xff;
+
+ /* initialize block pointer to start of block */
+ dnload.block_ptr = dnload.block;
+
+ dnload.block_number++;
+ dnload.serial_fd.when = BSC_FD_READ | BSC_FD_WRITE;
+ return 0;
+}
+
+static int mtk_prepare_block(void)
+{
+ int rc, i;
+
+ int remaining_bytes;
+ int fill_bytes;
+ uint8_t *block_data;
+ uint8_t tmp_byteswap;
+ uint32_t tmp_size;
+
+ dnload.block_len = MTK_BLOCK_SIZE;
+ dnload.echo_bytecount = 0;
+
+ /* if first block, allocate memory */
+ if (!dnload.block_number) {
+ dnload.block = malloc(dnload.block_len);
+ if (!dnload.block) {
+ fprintf(stderr, "No memory\n");
+ return -ENOMEM;
+ }
+
+ /* calculate the number of blocks we need to send */
+ dnload.block_count = (dnload.data_len-3) / MTK_BLOCK_SIZE;
+ /* add one more block if no multiple of blocksize */
+ if((dnload.data_len-3) % MTK_BLOCK_SIZE)
+ dnload.block_count++;
+
+ /* divide by 2, since we have to tell the mtk loader the size
+ * as count of uint16 (odd transfer sizes are not possible) */
+ tmp_size = (dnload.block_count * MTK_BLOCK_SIZE)/2;
+ dnload.mtk_send_size[0] = (tmp_size >> 24) & 0xff;
+ dnload.mtk_send_size[1] = (tmp_size >> 16) & 0xff;
+ dnload.mtk_send_size[2] = (tmp_size >> 8) & 0xff;
+ dnload.mtk_send_size[3] = tmp_size & 0xff;
+
+ /* initialize write pointer to start of data */
+ dnload.write_ptr = dnload.data;
+ }
+
+ block_data = dnload.block;
+ dnload.write_ptr = dnload.data + 2 +
+ (dnload.block_len * dnload.block_number);
+
+ remaining_bytes = dnload.data_len - 3 -
+ (dnload.block_len * dnload.block_number);
+
+ memcpy(block_data, dnload.write_ptr, MTK_BLOCK_SIZE);
+
+ if (remaining_bytes <= MTK_BLOCK_SIZE) {
+ fill_bytes = (MTK_BLOCK_SIZE - remaining_bytes);
+ printf("Preparing the last block, filling %i bytes\n",
+ fill_bytes);
+ memset(block_data + remaining_bytes, 0x00, fill_bytes);
+ dnload.romload_state = SENDING_LAST_BLOCK;
+ } else {
+ dnload.romload_state = SENDING_BLOCKS;
+ printf("Preparing block %i\n", dnload.block_number+1);
+ }
+
+ /* for the mtk romloader we need to swap MSB <-> LSB */
+ for (i = 0; i < dnload.block_len; i += 2) {
+ tmp_byteswap = dnload.block[i];
+ dnload.block[i] = dnload.block[i+1];
+ dnload.block[i+1] = tmp_byteswap;
+ }
+
+ /* initialize block pointer to start of block */
+ dnload.block_ptr = dnload.block;
+
+ dnload.block_number++;
+ return rc;
+}
+
+static int handle_write_block(void)
+{
+ int bytes_left, write_len, rc;
+
+ printf("handle_write_block(): ");
+
+ if (dnload.block_ptr >= dnload.block + dnload.block_len) {
+ printf("Block %i finished\n", dnload.block_number);
+ dnload.write_ptr = dnload.data;
+ dnload.serial_fd.when &= ~BSC_FD_WRITE;
+ if (dnload.romload_state == SENDING_LAST_BLOCK) {
+ dnload.romload_state = LAST_BLOCK_SENT;
+ printf("Finished, sent %i blocks in total\n",
+ dnload.block_number);
+ } else {
+ dnload.romload_state = WAITING_BLOCK_ACK;
+ }
+
+ return 0;
+ }
+
+ /* try to write a maximum of block_len bytes */
+ bytes_left = (dnload.block + dnload.block_len) - dnload.block_ptr;
+ write_len = dnload.block_len;
+ if (bytes_left < dnload.block_len)
+ write_len = bytes_left;
+
+ rc = write(dnload.serial_fd.fd, dnload.block_ptr, write_len);
+ if (rc < 0) {
+ perror("Error during write");
+ return rc;
+ }
+
+ dnload.block_ptr += rc;
+
+ printf("%u bytes (%tu/%u)\n", rc, dnload.block_ptr - dnload.block,
+ dnload.block_len);
+
+ return 0;
+}
+
+#define WRITE_BLOCK 4096
+
+static int handle_write_dnload(void)
+{
+ int bytes_left, write_len, rc;
+ uint8_t xor_init = 0x02;
+
+ printf("handle_write(): ");
+ if (dnload.write_ptr == dnload.data) {
+ /* no bytes have been transferred yet */
+ switch (dnload.mode) {
+ case MODE_C155:
+ case MODE_C140xor:
+ case MODE_C123xor:
+ rc = write(dnload.serial_fd.fd, &xor_init, 1);
+ break;
+ default:
+ break;
+ }
+ } else if (dnload.write_ptr >= dnload.data + dnload.data_len) {
+ printf("finished\n");
+ dnload.write_ptr = dnload.data;
+ dnload.serial_fd.when &= ~BSC_FD_WRITE;
+ return 1;
+ }
+
+ /* try to write a maximum of WRITE_BLOCK bytes */
+ bytes_left = (dnload.data + dnload.data_len) - dnload.write_ptr;
+ write_len = WRITE_BLOCK;
+ if (bytes_left < WRITE_BLOCK)
+ write_len = bytes_left;
+
+ rc = write(dnload.serial_fd.fd, dnload.write_ptr, write_len);
+ if (rc < 0) {
+ perror("Error during write");
+ return rc;
+ }
+
+ dnload.write_ptr += rc;
+
+ printf("%u bytes (%tu/%u)\n", rc, dnload.write_ptr - dnload.data,
+ dnload.data_len);
+
+ return 0;
+}
+
+static int handle_sercomm_write(void)
+{
+ uint8_t c;
+
+ if (sercomm_drv_pull(&c) != 0) {
+ if (write(dnload.serial_fd.fd, &c, 1) != 1)
+ perror("short write");
+ } else
+ dnload.serial_fd.when &= ~BSC_FD_WRITE;
+
+ return 0;
+}
+
+static int handle_write(void)
+{
+ /* TODO: simplify this again (global state: downloading, sercomm) */
+ switch (dnload.mode) {
+ case MODE_ROMLOAD:
+ switch (dnload.romload_state) {
+ case SENDING_BLOCKS:
+ case SENDING_LAST_BLOCK:
+ return handle_write_block();
+ default:
+ return handle_sercomm_write();
+ }
+ break;
+ case MODE_MTK:
+ switch (dnload.mtk_state) {
+ case MTK_SENDING_BLOCKS:
+ return handle_write_block();
+ default:
+ return handle_sercomm_write();
+ }
+ break;
+ default:
+ switch (dnload.state) {
+ case DOWNLOADING:
+ return handle_write_dnload();
+ default:
+ return handle_sercomm_write();
+ }
+ }
+
+ return 0;
+}
+
+static uint8_t buffer[sizeof(phone_prompt1)];
+static uint8_t *bufptr = buffer;
+
+static void hdlc_send_to_phone(uint8_t dlci, uint8_t *data, int len)
+{
+ struct msgb *msg;
+ uint8_t *dest;
+
+ if(dnload.dump_tx) {
+ printf("hdlc_send(dlci=%u): ", dlci);
+ osmocon_osmo_hexdump(data, len);
+ }
+
+ if (len > 512) {
+ fprintf(stderr, "Too much data to send. %u\n", len);
+ return;
+ }
+
+ /* push the message into the stack */
+ msg = sercomm_alloc_msgb(512);
+ if (!msg) {
+ fprintf(stderr, "Failed to create data for the frame.\n");
+ return;
+ }
+
+ /* copy the data */
+ dest = msgb_put(msg, len);
+ memcpy(dest, data, len);
+
+ sercomm_sendmsg(dlci, msg);
+
+ dnload.serial_fd.when |= BSC_FD_WRITE;
+}
+
+static void hdlc_console_cb(uint8_t dlci, struct msgb *msg)
+{
+ write(1, msg->data, msg->len);
+ msgb_free(msg);
+}
+
+static void hdlc_tool_cb(uint8_t dlci, struct msgb *msg)
+{
+ struct tool_server *srv = tool_server_for_dlci[dlci];
+
+ if(dnload.dump_rx) {
+ printf("hdlc_recv(dlci=%u): ", dlci);
+ osmocon_osmo_hexdump(msg->data, msg->len);
+ }
+
+ if(srv) {
+ struct tool_connection *con;
+ uint16_t *len;
+
+ len = (uint16_t *) msgb_push(msg, 2);
+ *len = htons(msg->len - sizeof(*len));
+
+ llist_for_each_entry(con, &srv->connections, entry) {
+ if (write(con->fd.fd, msg->data, msg->len) != msg->len) {
+ fprintf(stderr,
+ "Failed to write msg to the socket..\n");
+ continue;
+ }
+ }
+ }
+
+ msgb_free(msg);
+}
+
+static int handle_buffer(int buf_used_len)
+{
+ int nbytes, buf_left, i;
+
+ buf_left = buf_used_len - (bufptr - buffer);
+ if (buf_left <= 0) {
+ memmove(buffer, buffer+1, buf_used_len-1);
+ bufptr -= 1;
+ buf_left = 1;
+ }
+
+ nbytes = read(dnload.serial_fd.fd, bufptr, buf_left);
+ if (nbytes <= 0)
+ return nbytes;
+
+ if (!dnload.expect_hdlc) {
+ printf("got %i bytes from modem, ", nbytes);
+ printf("data looks like: ");
+ osmocon_osmo_hexdump(bufptr, nbytes);
+ } else {
+ for (i = 0; i < nbytes; ++i)
+ if (sercomm_drv_rx_char(bufptr[i]) == 0)
+ printf("Dropping sample '%c'\n", bufptr[i]);
+ }
+
+ return nbytes;
+}
+
+/* Compal ramloader */
+static int handle_read(void)
+{
+ int rc, nbytes;
+
+ nbytes = handle_buffer(sizeof(buffer));
+ if (nbytes <= 0)
+ return nbytes;
+
+ if (!memcmp(buffer, phone_prompt1, sizeof(phone_prompt1))) {
+ printf("Received PROMPT1 from phone, responding with CMD\n");
+ dnload.expect_hdlc = 0;
+ dnload.state = WAITING_PROMPT2;
+ if(dnload.filename) {
+ rc = write(dnload.serial_fd.fd, dnload_cmd, sizeof(dnload_cmd));
+
+ /* re-read file */
+ rc = read_file(dnload.filename);
+ if (rc < 0) {
+ fprintf(stderr, "read_file(%s) failed with %d\n",
+ dnload.filename, rc);
+ exit(1);
+ }
+ }
+ } else if (!memcmp(buffer, phone_prompt2, sizeof(phone_prompt2))) {
+ printf("Received PROMPT2 from phone, starting download\n");
+ dnload.serial_fd.when = BSC_FD_READ | BSC_FD_WRITE;
+ dnload.state = DOWNLOADING;
+ } else if (!memcmp(buffer, phone_ack, sizeof(phone_ack))) {
+ printf("Received DOWNLOAD ACK from phone, your code is"
+ " running now!\n");
+ dnload.serial_fd.when = BSC_FD_READ;
+ dnload.state = WAITING_PROMPT1;
+ dnload.write_ptr = dnload.data;
+ dnload.expect_hdlc = 1;
+
+ /* check for romloader chainloading mode used as a workaround
+ * for the magic on the C139/C140 and J100i */
+ if (dnload.chainload_filename != NULL) {
+ printf("Enabled Compal ramloader -> Calypso romloader"
+ " chainloading mode\n");
+ bufptr = buffer;
+ dnload.filename = dnload.chainload_filename;
+ dnload.mode = MODE_ROMLOAD;
+ serial_set_baudrate(ROMLOAD_INIT_BAUDRATE);
+ tick_timer.cb = &beacon_timer_cb;
+ tick_timer.data = &tick_timer;
+ osmo_timer_schedule(&tick_timer, 0, dnload.beacon_interval);
+ }
+ } else if (!memcmp(buffer, phone_nack, sizeof(phone_nack))) {
+ printf("Received DOWNLOAD NACK from phone, something went"
+ " wrong :(\n");
+ dnload.serial_fd.when = BSC_FD_READ;
+ dnload.state = WAITING_PROMPT1;
+ dnload.write_ptr = dnload.data;
+ } else if (!memcmp(buffer, phone_nack_magic, sizeof(phone_nack_magic))) {
+ printf("Received MAGIC NACK from phone, you need to"
+ " have \"1003\" at 0x803ce0\n");
+ dnload.serial_fd.when = BSC_FD_READ;
+ dnload.state = WAITING_PROMPT1;
+ dnload.write_ptr = dnload.data;
+ } else if (!memcmp(buffer, ftmtool, sizeof(ftmtool))) {
+ printf("Received FTMTOOL from phone, ramloader has aborted\n");
+ dnload.serial_fd.when = BSC_FD_READ;
+ dnload.state = WAITING_PROMPT1;
+ dnload.write_ptr = dnload.data;
+ }
+ bufptr += nbytes;
+
+ return nbytes;
+}
+
+/* "Calypso non-secure romloader" */
+static int handle_read_romload(void)
+{
+ int rc, nbytes, buf_used_len;
+
+ /* virtually limit buffer length for romloader, since responses
+ * are shorter and vary in length */
+
+ switch (dnload.romload_state) {
+ case WAITING_PARAM_ACK:
+ buf_used_len = 4; /* ">p" + uint16_t len */
+ break;
+ case WAITING_CHECKSUM_ACK:
+ buf_used_len = 3; /* ">c" + uint8_t checksum */
+ break;
+ case FINISHED:
+ buf_used_len = sizeof(buffer);
+ break;
+ default:
+ buf_used_len = 2; /* ">*" */
+ }
+
+ nbytes = handle_buffer(buf_used_len);
+ if (nbytes <= 0)
+ return nbytes;
+
+ switch (dnload.romload_state) {
+ case WAITING_IDENTIFICATION:
+ if (memcmp(buffer, romload_ident_ack,
+ sizeof(romload_ident_ack)))
+ break;
+
+ printf("Received ident ack from phone, sending "
+ "parameter sequence\n");
+ dnload.expect_hdlc = 1;
+ dnload.romload_state = WAITING_PARAM_ACK;
+ rc = write(dnload.serial_fd.fd, romload_param,
+ sizeof(romload_param));
+ /* re-read file */
+ rc = read_file(dnload.filename);
+ if (rc < 0) {
+ fprintf(stderr, "read_file(%s) failed with %d\n",
+ dnload.filename, rc);
+ exit(1);
+ }
+ break;
+ case WAITING_PARAM_ACK:
+ if (memcmp(buffer, romload_param_ack,
+ sizeof(romload_param_ack)))
+ break;
+
+ printf("Received parameter ack from phone, "
+ "starting download\n");
+ serial_set_baudrate(ROMLOAD_DL_BAUDRATE);
+
+ /* using the max blocksize the phone tells us */
+ dnload.block_payload_size = ((buffer[3] << 8) + buffer[2]);
+ printf("Used blocksize for download is %i bytes\n",
+ dnload.block_payload_size);
+ dnload.block_payload_size -= ROMLOAD_BLOCK_HDR_LEN;
+ dnload.romload_state = SENDING_BLOCKS;
+ dnload.block_number = 0;
+ romload_prepare_block();
+ bufptr -= 2;
+ break;
+ case WAITING_BLOCK_ACK:
+ case LAST_BLOCK_SENT:
+ if (!memcmp(buffer, romload_block_ack,
+ sizeof(romload_block_ack))) {
+ printf("Received block ack from phone\n");
+ if (dnload.romload_state == LAST_BLOCK_SENT) {
+ /* send the checksum */
+ uint8_t final_checksum =
+ (~(dnload.romload_dl_checksum) & 0xff);
+ printf("Sending checksum: 0x%02x \n",
+ final_checksum);
+ rc = write(dnload.serial_fd.fd,
+ romload_checksum_cmd,
+ sizeof(romload_checksum_cmd));
+ rc = write(dnload.serial_fd.fd,
+ &final_checksum, 1);
+ dnload.romload_state = WAITING_CHECKSUM_ACK;
+ } else
+ romload_prepare_block();
+ } else if (!memcmp(buffer, romload_block_nack,
+ sizeof(romload_block_nack))) {
+ printf("Received block nack from phone, "
+ "something went wrong, aborting\n");
+ serial_set_baudrate(ROMLOAD_INIT_BAUDRATE);
+ dnload.romload_state = WAITING_IDENTIFICATION;
+ osmo_timer_schedule(&tick_timer, 0, dnload.beacon_interval);
+ }
+ break;
+ case WAITING_CHECKSUM_ACK:
+ if (!memcmp(buffer, romload_checksum_ack,
+ sizeof(romload_checksum_ack))) {
+ printf("Checksum on phone side matches, "
+ "let's branch to your code\n");
+ printf("Branching to 0x%08x\n", ROMLOAD_ADDRESS);
+
+ rc = write(dnload.serial_fd.fd, romload_branch_cmd,
+ sizeof(romload_branch_cmd));
+ rc = write(dnload.serial_fd.fd, &dnload.load_address,
+ sizeof(dnload.load_address));
+ dnload.romload_state = WAITING_BRANCH_ACK;
+ bufptr -= 1;
+ } else if (!memcmp(buffer, romload_checksum_nack,
+ sizeof(romload_checksum_nack))) {
+ printf("Checksum on phone side (0x%02x) doesn't "
+ "match ours, aborting\n", ~buffer[2]);
+ serial_set_baudrate(ROMLOAD_INIT_BAUDRATE);
+ dnload.romload_state = WAITING_IDENTIFICATION;
+ osmo_timer_schedule(&tick_timer, 0, dnload.beacon_interval);
+ bufptr -= 1;
+ }
+ break;
+ case WAITING_BRANCH_ACK:
+ if (!memcmp(buffer, romload_branch_ack,
+ sizeof(romload_branch_ack))) {
+ printf("Received branch ack, your code is running now!\n");
+ dnload.serial_fd.when = BSC_FD_READ;
+ dnload.romload_state = FINISHED;
+ dnload.write_ptr = dnload.data;
+ dnload.expect_hdlc = 1;
+ } else if (!memcmp(buffer, romload_branch_nack,
+ sizeof(romload_branch_nack))) {
+ printf("Received branch nack, aborting\n");
+ serial_set_baudrate(ROMLOAD_INIT_BAUDRATE);
+ dnload.romload_state = WAITING_IDENTIFICATION;
+ osmo_timer_schedule(&tick_timer, 0, dnload.beacon_interval);
+ }
+ break;
+ default:
+ break;
+ }
+
+ bufptr += nbytes;
+ return nbytes;
+}
+
+/* MTK romloader */
+static int handle_read_mtk(void)
+{
+ int rc, nbytes, buf_used_len;
+
+ switch (dnload.mtk_state) {
+ case MTK_WAIT_ADDR_ACK:
+ case MTK_WAIT_SIZE_ACK:
+ case MTK_WAIT_BRANCH_ADDR_ACK:
+ buf_used_len = 4;
+ break;
+ case MTK_FINISHED:
+ buf_used_len = sizeof(buffer);
+ break;
+ default:
+ buf_used_len = 1;
+ }
+
+ nbytes = handle_buffer(buf_used_len);
+ if (nbytes <= 0)
+ return nbytes;
+
+ switch (dnload.mtk_state) {
+ case MTK_INIT_1:
+ if (!(buffer[0] == mtk_init_resp[0]))
+ break;
+ dnload.mtk_state = MTK_INIT_2;
+ printf("Received init magic byte 1\n");
+ rc = write(dnload.serial_fd.fd, &mtk_init_cmd[1], 1);
+ break;
+ case MTK_INIT_2:
+ if (!(buffer[0] == mtk_init_resp[1]))
+ break;
+ dnload.mtk_state = MTK_INIT_3;
+ printf("Received init magic byte 2\n");
+ rc = write(dnload.serial_fd.fd, &mtk_init_cmd[2], 1);
+ break;
+ case MTK_INIT_3:
+ if (!(buffer[0] == mtk_init_resp[2]))
+ break;
+ dnload.mtk_state = MTK_INIT_4;
+ printf("Received init magic byte 3\n");
+ rc = write(dnload.serial_fd.fd, &mtk_init_cmd[3], 1);
+ break;
+ case MTK_INIT_4:
+ if (!(buffer[0] == mtk_init_resp[3]))
+ break;
+ dnload.mtk_state = MTK_WAIT_WRITE_ACK;
+ printf("Received init magic byte 4, requesting write\n");
+ rc = write(dnload.serial_fd.fd, &mtk_command[0], 1);
+ break;
+ case MTK_WAIT_WRITE_ACK:
+ if (!(buffer[0] == mtk_command[0]))
+ break;
+ dnload.mtk_state = MTK_WAIT_ADDR_ACK;
+ printf("Received write ack, sending load address\n");
+
+ rc = write(dnload.serial_fd.fd, &dnload.load_address,
+ sizeof(dnload.load_address));
+ break;
+ case MTK_WAIT_ADDR_ACK:
+ if (memcmp(buffer, dnload.load_address,
+ sizeof(dnload.load_address)))
+ break;
+ printf("Received address ack from phone, sending loadsize\n");
+ /* re-read file */
+ rc = read_file(dnload.filename);
+ if (rc < 0) {
+ fprintf(stderr, "read_file(%s) failed with %d\n",
+ dnload.filename, rc);
+ exit(1);
+ }
+ dnload.block_number = 0;
+ mtk_prepare_block();
+ dnload.mtk_state = MTK_WAIT_SIZE_ACK;
+ rc = write(dnload.serial_fd.fd, &dnload.mtk_send_size,
+ sizeof(dnload.mtk_send_size));
+ break;
+ case MTK_WAIT_SIZE_ACK:
+ if (memcmp(buffer, dnload.mtk_send_size,
+ sizeof(dnload.mtk_send_size)))
+ break;
+ printf("Received size ack\n");
+ dnload.expect_hdlc = 1;
+ dnload.mtk_state = MTK_SENDING_BLOCKS;
+ dnload.serial_fd.when = BSC_FD_READ | BSC_FD_WRITE;
+ bufptr -= 3;
+ break;
+ case MTK_SENDING_BLOCKS:
+ if (!(buffer[0] == dnload.block[dnload.echo_bytecount]))
+ printf("Warning: Byte %i of Block %i doesn't match,"
+ " check your serial connection!\n",
+ dnload.echo_bytecount, dnload.block_number);
+ dnload.echo_bytecount++;
+
+ if ((dnload.echo_bytecount+1) > MTK_BLOCK_SIZE) {
+ if ( dnload.block_number == dnload.block_count) {
+ rc = write(dnload.serial_fd.fd,
+ &mtk_command[3], 1);
+ printf("Sending branch command\n");
+ dnload.expect_hdlc = 0;
+ dnload.mtk_state = MTK_WAIT_BRANCH_CMD_ACK;
+ break;
+ }
+ printf("Received Block %i preparing next block\n",
+ dnload.block_number);
+ mtk_prepare_block();
+ dnload.serial_fd.when = BSC_FD_READ | BSC_FD_WRITE;
+ }
+ break;
+ case MTK_WAIT_BRANCH_CMD_ACK:
+ if (!(buffer[0] == mtk_command[3]))
+ break;
+ dnload.mtk_state = MTK_WAIT_BRANCH_ADDR_ACK;
+ printf("Received branch command ack, sending address\n");
+
+ rc = write(dnload.serial_fd.fd, &dnload.load_address,
+ sizeof(dnload.load_address));
+ break;
+ case MTK_WAIT_BRANCH_ADDR_ACK:
+ if (memcmp(buffer, dnload.load_address,
+ sizeof(dnload.load_address)))
+ break;
+ printf("Received branch address ack, code should run now\n");
+ serial_set_baudrate(MODEM_BAUDRATE);
+ dnload.serial_fd.when = BSC_FD_READ;
+ dnload.mtk_state = MTK_FINISHED;
+ dnload.write_ptr = dnload.data;
+ dnload.expect_hdlc = 1;
+ break;
+ default:
+ break;
+ }
+
+ bufptr += nbytes;
+ return nbytes;
+}
+
+static int serial_read(struct osmo_fd *fd, unsigned int flags)
+{
+ int rc;
+ if (flags & BSC_FD_READ) {
+ switch (dnload.mode) {
+ case MODE_ROMLOAD:
+ rc = handle_read_romload();
+ break;
+ case MODE_MTK:
+ rc = handle_read_mtk();
+ break;
+ default:
+ rc = handle_read();
+ break;
+ }
+ if (rc == 0)
+ exit(2);
+ }
+
+ if (flags & BSC_FD_WRITE) {
+ rc = handle_write();
+ if (rc == 1)
+ dnload.state = WAITING_PROMPT1;
+ }
+ return 0;
+}
+
+static int parse_mode(const char *arg)
+{
+ if (!strcasecmp(arg, "c123"))
+ return MODE_C123;
+ else if (!strcasecmp(arg, "c123xor"))
+ return MODE_C123xor;
+ else if (!strcasecmp(arg, "c140"))
+ return MODE_C140;
+ else if (!strcasecmp(arg, "c140xor"))
+ return MODE_C140xor;
+ else if (!strcasecmp(arg, "c155"))
+ return MODE_C155;
+ else if (!strcasecmp(arg, "romload"))
+ return MODE_ROMLOAD;
+ else if (!strcasecmp(arg, "mtk"))
+ return MODE_MTK;
+
+ return -1;
+}
+
+#define HELP_TEXT \
+ "[ -v | -h ] [ -d [t][r] ] [ -p /dev/ttyXXXX ]\n" \
+ "\t\t [ -s /tmp/osmocom_l2 ]\n" \
+ "\t\t [ -l /tmp/osmocom_loader ]\n" \
+ "\t\t [ -m {c123,c123xor,c140,c140xor,c155,romload,mtk} ]\n" \
+ "\t\t [ -c /to-be-chainloaded-file.bin ]\n" \
+ "\t\t [ -i beacon-interval (mS) ]\n" \
+ "\t\t file.bin\n\n" \
+ "* Open serial port /dev/ttyXXXX (connected to your phone)\n" \
+ "* Perform handshaking with the ramloader in the phone\n" \
+ "* Download file.bin to the attached phone (base address 0x00800100)\n"
+
+static int usage(const char *name)
+{
+ printf("Usage: %s ", name);
+ printf(HELP_TEXT);
+ exit(2);
+}
+
+static int version(const char *name)
+{
+ printf("%s version %s\n", name, PACKAGE_VERSION);
+ exit(2);
+}
+
+static int un_tool_read(struct osmo_fd *fd, unsigned int flags)
+{
+ int rc, c;
+ uint16_t length = 0xffff;
+ uint8_t buf[4096];
+ struct tool_connection *con = (struct tool_connection *)fd->data;
+
+ c = 0;
+ while(c < 2) {
+ rc = read(fd->fd, &buf + c, 2 - c);
+ if(rc == 0) {
+ // disconnect
+ goto close;
+ }
+ if(rc < 0) {
+ if(errno == EAGAIN) {
+ continue;
+ }
+ fprintf(stderr, "Err from socket: %s\n", strerror(errno));
+ goto close;
+ }
+ c += rc;
+ }
+
+ length = ntohs(*(uint16_t*)buf);
+
+ c = 0;
+ while(c < length) {
+ rc = read(fd->fd, &buf + c, length - c);
+ if(rc == 0) {
+ // disconnect
+ goto close;
+ }
+ if(rc < 0) {
+ if(errno == EAGAIN) {
+ continue;
+ }
+ fprintf(stderr, "Err from socket: %s\n", strerror(errno));
+ goto close;
+ }
+ c += rc;
+ }
+
+ hdlc_send_to_phone(con->server->dlci, buf, length);
+
+ return 0;
+close:
+
+ close(fd->fd);
+ osmo_fd_unregister(fd);
+ llist_del(&con->entry);
+ talloc_free(con);
+ return -1;
+}
+
+/* accept a new connection */
+static int tool_accept(struct osmo_fd *fd, unsigned int flags)
+{
+ struct tool_server *srv = (struct tool_server *)fd->data;
+ struct tool_connection *con;
+ struct sockaddr_un un_addr;
+ socklen_t len;
+ int rc;
+
+ len = sizeof(un_addr);
+ rc = accept(fd->fd, (struct sockaddr *) &un_addr, &len);
+ if (rc < 0) {
+ fprintf(stderr, "Failed to accept a new connection.\n");
+ return -1;
+ }
+
+ con = talloc_zero(NULL, struct tool_connection);
+ if (!con) {
+ fprintf(stderr, "Failed to create tool connection.\n");
+ return -1;
+ }
+
+ con->server = srv;
+
+ con->fd.fd = rc;
+ con->fd.when = BSC_FD_READ;
+ con->fd.cb = un_tool_read;
+ con->fd.data = con;
+ if (osmo_fd_register(&con->fd) != 0) {
+ fprintf(stderr, "Failed to register the fd.\n");
+ return -1;
+ }
+
+ llist_add(&con->entry, &srv->connections);
+ return 0;
+}
+
+/*
+ * Register and start a tool server
+ */
+static int register_tool_server(struct tool_server *ts,
+ const char *path,
+ uint8_t dlci)
+{
+ struct osmo_fd *bfd = &ts->bfd;
+ struct sockaddr_un local;
+ unsigned int namelen;
+ int rc;
+
+ bfd->fd = socket(AF_UNIX, SOCK_STREAM, 0);
+
+ if (bfd->fd < 0) {
+ fprintf(stderr, "Failed to create Unix Domain Socket.\n");
+ return -1;
+ }
+
+ local.sun_family = AF_UNIX;
+ strncpy(local.sun_path, path, sizeof(local.sun_path));
+ local.sun_path[sizeof(local.sun_path) - 1] = '\0';
+ unlink(local.sun_path);
+
+ /* we use the same magic that X11 uses in Xtranssock.c for
+ * calculating the proper length of the sockaddr */
+#if defined(BSD44SOCKETS) || defined(__UNIXWARE__)
+ local.sun_len = strlen(local.sun_path);
+#endif
+#if defined(BSD44SOCKETS) || defined(SUN_LEN)
+ namelen = SUN_LEN(&local);
+#else
+ namelen = strlen(local.sun_path) +
+ offsetof(struct sockaddr_un, sun_path);
+#endif
+
+ rc = bind(bfd->fd, (struct sockaddr *) &local, namelen);
+ if (rc != 0) {
+ fprintf(stderr, "Failed to bind the unix domain socket. '%s'\n",
+ local.sun_path);
+ return -1;
+ }
+
+ if (listen(bfd->fd, 0) != 0) {
+ fprintf(stderr, "Failed to listen.\n");
+ return -1;
+ }
+
+ bfd->when = BSC_FD_READ;
+ bfd->cb = tool_accept;
+ bfd->data = ts;
+
+ ts->dlci = dlci;
+ INIT_LLIST_HEAD(&ts->connections);
+
+ tool_server_for_dlci[dlci] = ts;
+
+ sercomm_register_rx_cb(dlci, hdlc_tool_cb);
+
+ if (osmo_fd_register(bfd) != 0) {
+ fprintf(stderr, "Failed to register the bfd.\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+extern void hdlc_tpudbg_cb(uint8_t dlci, struct msgb *msg);
+
+void parse_debug(const char *str)
+{
+ while(*str) {
+ switch(*str) {
+ case 't':
+ dnload.dump_tx = 1;
+ break;
+ case 'r':
+ dnload.dump_rx = 1;
+ break;
+ default:
+ printf("Unknown debug flag %c\n", *str);
+ abort();
+ break;
+ }
+ str++;
+ }
+}
+
+int main(int argc, char **argv)
+{
+ int opt, flags;
+ uint32_t tmp_load_address = ROMLOAD_ADDRESS;
+ const char *serial_dev = "/dev/ttyUSB1";
+ const char *layer2_un_path = "/tmp/osmocom_l2";
+ const char *loader_un_path = "/tmp/osmocom_loader";
+
+ dnload.mode = MODE_C123;
+ dnload.chainload_filename = NULL;
+ dnload.beacon_interval = DEFAULT_BEACON_INTERVAL;
+
+ while ((opt = getopt(argc, argv, "d:hl:p:m:c:s:i:v")) != -1) {
+ switch (opt) {
+ case 'p':
+ serial_dev = optarg;
+ break;
+ case 'm':
+ dnload.mode = parse_mode(optarg);
+ if (dnload.mode < 0)
+ usage(argv[0]);
+ break;
+ case 's':
+ layer2_un_path = optarg;
+ break;
+ case 'l':
+ loader_un_path = optarg;
+ break;
+ case 'v':
+ version(argv[0]);
+ break;
+ case 'd':
+ parse_debug(optarg);
+ break;
+ case 'c':
+ dnload.chainload_filename = optarg;
+ break;
+ case 'i':
+ dnload.beacon_interval = atoi(optarg) * 1000;
+ break;
+ case 'h':
+ default:
+ usage(argv[0]);
+ break;
+ }
+ }
+
+ if (argc <= optind) {
+ dnload.filename = NULL;
+ } else {
+ dnload.filename = argv[optind];
+ }
+
+ dnload.serial_fd.fd = serial_init(serial_dev);
+ if (dnload.serial_fd.fd < 0) {
+ fprintf(stderr, "Cannot open serial device %s\n", serial_dev);
+ exit(1);
+ }
+
+ if (osmo_fd_register(&dnload.serial_fd) != 0) {
+ fprintf(stderr, "Failed to register the serial.\n");
+ exit(1);
+ }
+
+ /* Set serial socket to non-blocking mode of operation */
+ flags = fcntl(dnload.serial_fd.fd, F_GETFL);
+ flags |= O_NONBLOCK;
+ fcntl(dnload.serial_fd.fd, F_SETFL, flags);
+
+ dnload.serial_fd.when = BSC_FD_READ;
+ dnload.serial_fd.cb = serial_read;
+
+ /* initialize the HDLC layer */
+ sercomm_init();
+ sercomm_register_rx_cb(SC_DLCI_CONSOLE, hdlc_console_cb);
+ sercomm_register_rx_cb(SC_DLCI_DEBUG, hdlc_tpudbg_cb);
+
+ /* unix domain socket handling */
+ if (register_tool_server(&dnload.layer2_server, layer2_un_path,
+ SC_DLCI_L1A_L23) != 0)
+ exit(1);
+
+ if (register_tool_server(&dnload.loader_server, loader_un_path,
+ SC_DLCI_LOADER) != 0)
+ exit(1);
+
+ /* if in romload mode, start our beacon timer */
+ if (dnload.mode == MODE_ROMLOAD) {
+ tmp_load_address = ROMLOAD_ADDRESS;
+ serial_set_baudrate(ROMLOAD_INIT_BAUDRATE);
+ tick_timer.cb = &beacon_timer_cb;
+ tick_timer.data = &tick_timer;
+ osmo_timer_schedule(&tick_timer, 0, dnload.beacon_interval);
+ }
+ else if (dnload.mode == MODE_MTK) {
+ tmp_load_address = MTK_ADDRESS;
+ serial_set_baudrate(MTK_INIT_BAUDRATE);
+ tick_timer.cb = &mtk_timer_cb;
+ tick_timer.data = &tick_timer;
+ osmo_timer_schedule(&tick_timer, 0, dnload.beacon_interval);
+ }
+
+ dnload.load_address[0] = (tmp_load_address >> 24) & 0xff;
+ dnload.load_address[1] = (tmp_load_address >> 16) & 0xff;
+ dnload.load_address[2] = (tmp_load_address >> 8) & 0xff;
+ dnload.load_address[3] = tmp_load_address & 0xff;
+
+ while (1) {
+ if (osmo_select_main(0) < 0)
+ break;
+ }
+
+ close(dnload.serial_fd.fd);
+
+ exit(0);
+}