work

Makefile

@@ -27,4 +27,4 @@ driver:
 	sudo modprobe i2c-dev
 	sudo chmod 666 /dev/i2c-0
 
--include $(shell find -name *.d 2> /dev/null)
+-include $(shell find . -name \*.d 2> /dev/null)

gtk2-gui.c

@@ -90,7 +90,7 @@ static void update_status_boxes(struct blmc_status *status)
 	snprintf(buf, sizeof(buf), "%d", status->pwm_real);
 	gtk_entry_set_text(GTK_ENTRY(entry402), buf);
 
-	snprintf(buf, sizeof(buf), "%d", status->rpm);
+	snprintf(buf, sizeof(buf), "%d", status->rpm * 60 / 42);
 	gtk_entry_set_text(GTK_ENTRY(entry403), buf);
 
 	snprintf(buf, sizeof(buf), "%d", status->current);
@@ -134,6 +134,7 @@ static void on_button101_clicked(GtkButton *button, gpointer user_data)
 	}
 }
 
+/* fetch bootloader info 150ms after bootloader was requested */
 static gint bootloader_cb(gpointer data)
 {
 	char info_buf[16];
@@ -143,7 +144,7 @@ static gint bootloader_cb(gpointer data)
 	i2c_cmd_getsignature(i2c_fd, sig_buf, sizeof(sig_buf));
 
 	char msg_buf[64];
-	snprintf(msg_buf, sizeof(msg_buf), "%-16s (sig: 0x%02x%02x%02x)\n",
+	snprintf(msg_buf, sizeof(msg_buf), "bootloader: %-16s (sig: 0x%02x%02x%02x)\n",
 		info_buf, sig_buf[0], sig_buf[1], sig_buf[2]);
 
 	add_message(msg_buf);
@@ -157,6 +158,7 @@ static void on_button102_clicked(GtkButton *button, gpointer user_data)
 	g_timeout_add(150, bootloader_cb, NULL);
 }
 
+/* fetch application info 150ms after application was started */
 static gint application_cb(gpointer data)
 {
 	char info_buf[16];
@@ -165,7 +167,7 @@ static gint application_cb(gpointer data)
 	i2c_cmd_getparameters(i2c_fd, &blmc_parameters);
 
 	char msg_buf[64];
-	snprintf(msg_buf, sizeof(msg_buf), "%-16s\n", info_buf);
+	snprintf(msg_buf, sizeof(msg_buf), "application: %-16s\n", info_buf);
 	add_message(msg_buf);
 
 	update_parameter_boxes();
@@ -185,18 +187,14 @@ static void on_button201_clicked(GtkButton *button, gpointer user_data)
 	add_message("sorry, not implemented yet\n");
 }
 
-static void progress_cb(double progress)
+/* progress-bar callback */
+static void progress_cb(int pos, int size)
 {
-	if (progress < 0.0)
-		progress = 0.0;
-	else if (progress > 1.0)
-		progress = 1.0;
-
 	char buf[16];
-	snprintf(buf, sizeof(buf), "%3.0f%%", progress * 100);
+	snprintf(buf, sizeof(buf), "%3d%%", pos * 100 / size);
 
 	gtk_progress_bar_set_text(GTK_PROGRESS_BAR(progressbar201), buf);
-	gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(progressbar201), progress);
+	gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(progressbar201), (double)pos / (double)size);
 	gdk_window_process_updates(gtk_widget_get_parent_window(progressbar201), 1);
 }
 
@@ -299,7 +297,7 @@ static gint pwm_update_cb(gpointer data)
 /* Motor Togglebutton */
 static void on_togglebutton401_toggled(GtkToggleButton *togglebutton, gpointer user_data)
 {
-	g_timeout_add(50, pwm_update_cb, NULL);
+	g_timeout_add(250, pwm_update_cb, NULL);
 }
 
 static unsigned int i2c_interface_count;
@@ -612,9 +610,7 @@ GtkWidget * gui_create_window (void)
 	gtk_table_attach (GTK_TABLE (table201), filechooserbutton201, 0, 2, 1, 2,
 			(GtkAttachOptions) (GTK_FILL),
 			(GtkAttachOptions) (0), 5, 0);
-	g_object_set (filechooserbutton201,
-		"width-chars", 15,
-		NULL);
+	g_object_set (filechooserbutton201, "width-chars", 15, NULL);
 
 	label202 = gtk_label_new ("EEPROM:");
 	gtk_widget_show (label202);
@@ -627,9 +623,7 @@ GtkWidget * gui_create_window (void)
 	gtk_table_attach (GTK_TABLE (table201), filechooserbutton202, 3, 5, 1, 2,
 			(GtkAttachOptions) (GTK_FILL),
 			(GtkAttachOptions) (0), 5, 0);
-	g_object_set (filechooserbutton202,
-		"width-chars", 16,
-		NULL);
+	g_object_set (filechooserbutton202, "width-chars", 16, NULL);
 
 	button207 = gtk_button_new_with_mnemonic ("VERIFY");
 	gtk_widget_show (button207);

i2c.c

@@ -46,6 +46,8 @@
 #define COOKIE			0x4711
 #define WRITE_COOKIE		COOKIE
 
+#define FLASH_BLKSIZE		0x40
+
 /* blctrl commands */
 //#define CMD_GET_INFO		0x10
 #define CMD_SET_PWM		0x21
@@ -199,7 +201,81 @@ void i2c_cmd_setparameters(int fd, struct blmc_parameter *blmc, int persistent)
 	write(fd, cmd, sizeof(struct blmc_parameter) + (persistent ? 1 : -1));
 }
 
-int i2c_write_flash(int fd, const char *filename, void (*progress_cb)(double progress))
+int i2c_write_flash_buf(int fd, char *data, int size, void (*progress_cb)(int pos, int size))
+{
+	int pos = 0;
+	while (pos < size) {
+		progress_cb(pos, size);
+
+		char buf[FLASH_BLKSIZE +5];
+		buf[0] = CMD_WRITE_FLASH;
+		buf[1] = (pos >> 8) & 0xFF;
+		buf[2] = pos & 0xFF;
+		buf[3] = (COOKIE >> 8) & 0xFF;
+		buf[4] = COOKIE & 0xFF;
+
+		/* copy data and pad with 0xFF */
+		int len = MIN(FLASH_BLKSIZE, size - pos);
+		memcpy(buf +5, &data[pos], len);
+		memset(buf +5 +len, 0xFF, FLASH_BLKSIZE - len);
+
+		write(fd, buf, sizeof(buf));
+		pos += len;
+	}
+
+	progress_cb(pos, size);
+	return pos;
+}
+
+int i2c_read_flash_buf(int fd, char *data, int size, void (*progress_cb)(int pos, int size))
+{
+	int pos = 0;
+	while (pos < size) {
+		progress_cb(pos, size);
+
+		char cmd[3];
+		cmd[0] = CMD_READ_FLASH;
+		cmd[1] = (pos >> 8) & 0xFF;
+		cmd[2] = pos & 0xFF;
+		write(fd, cmd, 3);
+
+		int len = MIN(FLASH_BLKSIZE, size - pos);
+		read(fd, data + pos, len);
+
+		pos += len;
+	}
+
+	progress_cb(pos, size);
+	return pos;
+}
+
+int i2c_verify_flash_buf(int fd, char *data, int size, void (*progress_cb)(int pos, int size))
+{
+	int pos = 0;
+	while (pos < size) {
+		progress_cb(pos, size);
+
+		char cmd[3];
+		cmd[0] = CMD_READ_FLASH;
+		cmd[1] = (pos >> 8) & 0xFF;
+		cmd[2] = pos & 0xFF;
+		write(fd, cmd, 3);
+
+		char buf2[FLASH_BLKSIZE];
+		int len = MIN(FLASH_BLKSIZE, size - pos);
+		read(fd, buf2, len);
+
+		if (memcmp(data + pos, buf2, len) != 0)
+			break;
+
+		pos += len;
+	}
+
+	progress_cb(pos, size);
+	return pos;
+}
+
+int i2c_write_flash(int fd, const char *filename, void (*progress_cb)(int pos, int size))
 {
 	int fd_file = open(filename, O_RDONLY);
 	if (fd_file < 0) {
@@ -214,44 +290,11 @@ int i2c_write_flash(int fd, const char *filename, void (*progress_cb)(double pro
 		return -1;
 	}
 
-	int file_size = statbuf.st_size;
-	int address = 0, progress = 0;
-
-	while (1) {
-		progress_cb((double)progress / (double)file_size);
-
-		char buf[64 +5], buf2[64 + 5];
-		int len = read(fd_file, buf +5, sizeof(buf) -5);
-		if (len <= 0)
-			break;
-
-		else if (len < 64)
-			memset(buf + len +5, 0xFF, sizeof(buf) - len -5);
-
-		buf[0] = CMD_WRITE_FLASH;
-		buf[1] = (address >> 8) & 0xFF;
-		buf[2] = address & 0xFF;
-		buf[3] = (COOKIE >> 8) & 0xFF;
-		buf[4] = COOKIE & 0xFF;
-		write(fd, buf, sizeof(buf));
-
-		buf[0] = CMD_READ_FLASH;
-		buf[1] = (address >> 8) & 0xFF;
-		buf[2] = address & 0xFF;
-		write(fd, buf, 3);
-		read(fd, buf2, 64);
-
-		address += 64;
-		progress += len;
-
-		if (memcmp(buf +5, buf2, 64) != 0) {
-			progress = -progress;
-			break;
-		}
-	}
+	char *data = malloc(statbuf.st_size);
+	if (data == NULL)
+		return -1;
 
-	close(fd_file);
-	return progress;
+	return i2c_write_flash_buf(fd, data, statbuf.st_size, progress_cb);
 }
 
 void i2c_cmd_setpwm(int fd, int pwm)

i2c.h

@@ -37,7 +37,11 @@ struct blmc_parameter {
 void i2c_cmd_getparameters(int fd, struct blmc_parameter *blmc);
 void i2c_cmd_setparameters(int fd, struct blmc_parameter *blmc, int persistent);
 
-int i2c_write_flash(int fd, const char *filename, void (*progress_cb)(double progress));
+int i2c_write_flash(int fd, const char *filename, void (*progress_cb)(int pos, int size));
+
+int i2c_write_flash_buf(int fd, char *data, int size, void (*progress_cb)(int pos, int size));
+int i2c_read_flash_buf(int fd, char *data, int size, void (*progress_cb)(int pos, int size));
+int i2c_verify_flash_buf(int fd, char *data, int size, void (*progress_cb)(int pos, int size));
 
 void i2c_cmd_setpwm(int fd, int pwm);