From a69eb10937b57a775a2e46026c6d4f7f6e6c3619 Mon Sep 17 00:00:00 2001
From: Nils Faerber <nils.faerber@kernelconcepts.de>
Date: Mon, 25 Jul 2011 02:10:38 +0200
Subject: [PATCH] Break out code for main application and MW handling, add
 Bluetooth code to self connect RFCOMM

---
 mw_main.c | 389 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 389 insertions(+)
 create mode 100644 mw_main.c

diff --git a/mw_main.c b/mw_main.c
new file mode 100644
index 0000000..5dae442
--- /dev/null
+++ b/mw_main.c
@@ -0,0 +1,389 @@
+/*
+ * (c) 2011 Siegen, Germany by Nils Faerber <nils.faerber@kernelconcepts.de>
+ *
+ * license LGPL
+ */
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <termios.h>
+#include <ctype.h>
+
+#include <errno.h>
+
+#include <bluetooth/bluetooth.h>
+#include <bluetooth/rfcomm.h>
+
+/*
+#include <bluetooth/sdp.h>
+#include <bluetooth/sdp_lib.h>
+*/
+
+#include "metawatch.h"
+#include "crc16ccitt.h"
+
+
+void bitmap_test(int mw_fd)
+{
+	/* a nice checker-board pattern */
+	unsigned char checkbuf[24] = {
+		0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+		0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+		0x55, 0x55, 0x55, 0x55, 0x55, 0x55,
+		0x55, 0x55, 0x55, 0x55, 0x55, 0x55,
+	};
+	mw_write_buffer(mw_fd, MW_SCREEN_MODE_IDLE, 0, 31, checkbuf, 24);
+	mw_write_buffer(mw_fd, MW_SCREEN_MODE_IDLE, 0, 33, checkbuf, 24);
+	mw_write_buffer(mw_fd, MW_SCREEN_MODE_IDLE, 0, 35, checkbuf, 24);
+	mw_write_buffer(mw_fd, MW_SCREEN_MODE_IDLE, 0, 37, checkbuf, 24);
+
+	mw_update_display(mw_fd, MW_SCREEN_MODE_IDLE, 1);
+}
+
+
+void bitmap_read(int mw_fd)
+{
+	int ffd, ret;
+	char rbuf[256];
+	unsigned int width, height, i, x, y;
+	unsigned int rowlength;
+	unsigned char *bmapbuf;
+	// unsigned char mw_buf[24];
+
+	ffd = open("test.pbm", O_RDONLY);
+	if (ffd < 0) {
+		perror("open");
+		return;
+	};
+	ret = read(ffd, rbuf, 3);
+	if (rbuf[0] != 'P' || rbuf[1] != '4') {
+		fprintf(stderr, "not a PBM file\n");
+		return;
+	}
+	memset(rbuf, 0, 256);
+	i = 0;
+	do {
+		ret = read(ffd, (rbuf+i), 1);
+	} while (!isspace(rbuf[i++]));
+	width = atoi(rbuf);
+
+	memset(rbuf, 0, 256);
+	i = 0;
+	do {
+		ret = read(ffd, (rbuf+i), 1);
+	} while (!isspace(rbuf[i++]));
+	height = atoi(rbuf);
+
+	rowlength = ((width / 8) + 1);
+
+	bmapbuf = malloc(rowlength * height);
+
+	ret = read(ffd, bmapbuf, rowlength * height);
+	close(ffd);
+
+#ifdef DEBUG
+	fprintf(stderr, "row length = %d bytes\n", rowlength);
+	fprintf(stderr, "bitmap resolution is %d x %d\n", width, height);
+	fprintf(stderr, "read %d of %d bytes\n", ret, rowlength * height);
+	fprintf(stderr, "\n");
+	for (y=0; y<height; y++) {
+		for (x=0; x<rowlength; x++) {
+			for (i=0; i<8; i++)
+				fprintf(stderr, "%c", (bmapbuf[(y*rowlength)+x] & (1<<(7-i))) ? '.' : ' ');
+		}
+		fprintf(stderr, "\n");
+	}
+	fprintf(stderr, "\n");
+#endif
+
+	/* reverse bits and invert the bmap */
+	bmap_buffer_flipinvert(1, 0, bmapbuf, rowlength * height);
+	/* send the buffer to the watch */
+	mw_send_bitmap(mw_fd, MW_SCREEN_MODE_IDLE, width, height, 31, bmapbuf, rowlength * height);
+	/* update the display */
+	mw_update_display(mw_fd, MW_SCREEN_MODE_IDLE, 1);
+
+	free(bmapbuf);
+}
+
+void print_help(void)
+{
+}
+
+void process_cmd(char *cmdline, int clinep, int mw_fd)
+{
+	unsigned char mdata[32];
+
+	fprintf(stderr, "command: '%s'\n", cmdline);
+
+	if (strncmp(cmdline, "quit", 4) == 0) {
+		close(mw_fd);
+		exit(0);
+	}
+	if (strncmp(cmdline, "help", 4) == 0) {
+		print_help();
+	}
+	if (strncmp(cmdline, "srtc", 4) == 0) {
+		fprintf(stderr, "Setting RTC from system time...");
+		mw_set_rtc(mw_fd, MW_RTC_CLOCK_24HR, MW_RTC_DATE_DDMM);
+		fprintf(stderr, "OK\n");
+	}
+	if (strncmp(cmdline, "grtc", 4) == 0) {
+		mw_send_frame(mw_fd, MW_GET_REAL_TIME_CLOCK, 0, NULL, 0);
+	}
+	if (strncmp(cmdline, "gistr", 5) == 0) {
+		mdata[0] = 0;
+		mw_send_frame(mw_fd, MW_GET_INFORMATION_STRING, 0, mdata, 1);
+	}
+	if (strncmp(cmdline, "gdtype", 6) == 0) {
+		mw_send_frame(mw_fd, MW_GET_DEVICE_TYPE, 0, NULL, 0);
+	}
+	if (strncmp(cmdline, "rvbat", 5) == 0) {
+		mw_send_frame(mw_fd, MW_READ_BATTERY_VOLTAGE_MSG, 0, NULL, 0);
+	}
+	if (strncmp(cmdline, "modecfg", 6) == 0) {
+		mw_configure_watch_mode(mw_fd, MW_SCREEN_MODE_IDLE, 0, 4, 1);
+		mw_update_display(mw_fd, MW_SCREEN_MODE_IDLE, 0);
+	}
+	if (strncmp(cmdline, "rbtcfg", 6) == 0) {
+		mdata[0] = 0; /* idle screen */
+		mdata[1] = 1; /* button index */
+		mdata[2] = 2; /* button press type */
+		mdata[3] = 3; /* callback message type */
+		mdata[4] = 4; /* callback message option */
+		mw_send_frame(mw_fd, MW_READ_BUTTON_CONFIG, 0, NULL, 0);
+	}
+	if (strncmp(cmdline, "svib", 4) == 0) {
+		mw_set_vibrate_mode(mw_fd, 1, 300, 300, 5);
+	}
+	if (strncmp(cmdline, "tbmp", 4) == 0) {
+		bitmap_test(mw_fd);
+	}
+	if (strncmp(cmdline, "rbmp", 4) == 0) {
+		bitmap_read(mw_fd);
+	}
+}
+
+
+int menu(int mw_fd)
+{
+	fd_set mfds;
+	struct termios tconfd, tmwfd;
+	char cmdline[128];
+	unsigned char msg_buf[64];
+	unsigned char clinep = 0;
+	int rcvd;
+
+	tcgetattr(0, &tconfd);
+	cfmakeraw(&tconfd);
+	tconfd.c_oflag |= ONLCR | OPOST;
+	tconfd.c_lflag |= ISIG;
+	tcsetattr(0, TCSANOW, &tconfd);
+
+	tcgetattr(mw_fd, &tmwfd);
+	cfmakeraw(&tmwfd);
+	tmwfd.c_oflag |= ONLCR | OPOST;
+	tmwfd.c_lflag |= ISIG;
+	tcsetattr(mw_fd, TCSANOW, &tmwfd);
+
+	FD_ZERO(&mfds);
+	FD_SET(0, &mfds);
+	FD_SET(mw_fd, &mfds);
+
+	memset(cmdline, 0, 128);
+
+	do {
+		rcvd = 0;
+		if (select(mw_fd+1, &mfds, NULL, NULL, NULL) > 0) {
+			if (FD_ISSET(mw_fd, &mfds)) {
+				rcvd = read(mw_fd, msg_buf, 64);
+				fprintf(stderr, "read %d bytes:\n", rcvd);
+				if (rcvd > 0) {
+					dump_frame(msg_buf, rcvd);
+					decode_frame(mw_fd, msg_buf, rcvd);
+				}
+			};
+			if (FD_ISSET(0, &mfds)) {
+				rcvd = read(0, (cmdline+clinep), 1);
+				if (rcvd > 0) {
+					if (cmdline[clinep] == '\r') {
+						printf("\n");
+						cmdline[clinep--] = '\0';
+						process_cmd(cmdline, clinep, mw_fd);
+						clinep = 0;
+						memset(cmdline, 0, 128);
+					} else {
+						clinep++;
+						if (clinep > 75)
+							clinep = 75;
+						printf("\r> %s", cmdline);
+						fflush(stdout);
+					}
+				}
+			};
+		} else
+			break;
+		FD_ZERO(&mfds);
+		FD_SET(0, &mfds);
+		FD_SET(mw_fd, &mfds);
+	} while (rcvd > 0);
+
+	return 0;
+}
+
+int open_socket(bdaddr_t *bdaddr, uint8_t channel)
+{
+	struct sockaddr_rc addr;
+	int sk, opt;
+	int f;
+
+	sk = socket(PF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM);
+	if (sk < 0) {
+		fprintf(stderr, "Can't create socket: %s (%d)\n",
+			strerror(errno), errno);
+                return -1;
+        }
+
+/*
+        f = 1;
+        if (setsockopt(sk, SOL_BLUETOOTH, BT_FLUSHABLE, &f, sizeof(f)) < 0) {
+		fprintf(stderr, "Can't set flushable: %s (%d)\n",
+			strerror(errno), errno);
+        	return -1;
+        }
+*/
+        memset(&addr, 0, sizeof(addr));
+        addr.rc_family = AF_BLUETOOTH;
+        bacpy(&addr.rc_bdaddr, BDADDR_ANY);
+
+        if (bind(sk, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
+                fprintf(stderr, "Can't bind socket: %s (%d)\n",
+                                                        strerror(errno), errno);
+                close(sk);
+                return -1;
+        }
+
+       /* Set link mode */
+        opt = 0;
+        opt |= RFCOMM_LM_MASTER;
+        opt |= RFCOMM_LM_AUTH;
+/*
+        opt |= RFCOMM_LM_ENCRYPT;
+        opt |= RFCOMM_LM_SECURE;
+*/
+        if (opt && setsockopt(sk, SOL_RFCOMM, RFCOMM_LM, &opt, sizeof(opt)) < 0) {
+                fprintf(stderr, "Can't set RFCOMM link mode: %s (%d)",
+                                                        strerror(errno), errno);
+                close(sk);
+                return -1;
+        }
+
+        memset(&addr, 0, sizeof(addr));
+        addr.rc_family = AF_BLUETOOTH;
+        bacpy(&addr.rc_bdaddr, bdaddr);
+        addr.rc_channel = channel;
+
+        if (connect(sk, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
+                fprintf(stderr, "Can't connect: %s (%d)\n",
+                                                        strerror(errno), errno);
+                close(sk);
+                return -1;
+        }
+
+        return sk;
+}
+
+void baswap(bdaddr_t *dst, const bdaddr_t *src)
+{
+        register unsigned char *d = (unsigned char *) dst;
+        register const unsigned char *s = (const unsigned char *) src;
+        register int i;
+
+        for (i = 0; i < 6; i++)
+                d[i] = s[5-i];
+}
+int bachk(const char *str)
+{
+        if (!str)
+                return -1;
+
+        if (strlen(str) != 17)
+                return -1;
+
+        while (*str) {
+                if (!isxdigit(*str++))
+                        return -1;
+
+                if (!isxdigit(*str++))
+                        return -1;
+
+                if (*str == 0)
+                        break;
+
+                if (*str++ != ':')
+                        return -1;
+        }
+
+        return 0;
+}
+
+int str2ba(const char *str, bdaddr_t *ba)
+{
+        bdaddr_t b;
+        int i;
+
+        if (bachk(str) < 0) {
+                memset(ba, 0, sizeof(*ba));
+                return -1;
+        }
+
+        for (i = 0; i < 6; i++, str += 3)
+                b.b[i] = strtol(str, NULL, 16);
+
+        baswap(ba, &b);
+
+        return 0;
+}
+
+int main(int argc, char **argv)
+{
+	int mw_fd;
+	bdaddr_t btaddr;
+
+	if (argc != 2) {
+		fprintf(stderr, "Usage:\n\t%s <devicename>\n", argv[0]);
+		return 1;
+	};
+  
+	crc16ccitt_init();
+
+#if USE_RFCOMM_FILE
+	mw_fd = open(argv[1], O_RDWR);
+	if (mw_fd < 0) {
+		perror("open");
+		return 1;
+	};
+#else
+	if (str2ba(argv[1], &btaddr))
+		return 1;
+	mw_fd = open_socket(&btaddr, 1);
+	if (mw_fd < 0) {
+		return 1;
+	};
+#endif
+
+	menu(mw_fd);
+
+	fsync(mw_fd);
+
+	close(mw_fd);
+
+	return 0;
+};
+
-- 
2.39.2