Initial commit

Author: Clément Léger

Makefile

@@ -0,0 +1,26 @@
+HOST_BOOTLOADER_DIR := ./host_bootloader_src
+BUILD_DIR := ./build
+SRC_DIR := ./src
+
+SRC_FILES := $(wildcard $(HOST_BOOTLOADER_DIR)/*.c)
+OBJ_FILES := $(subst $(HOST_BOOTLOADER_DIR),$(BUILD_DIR),$(patsubst %.c,%.o,$(SRC_FILES)))
+HDR_FILES := $(wildcard $(BUILD_DIR)/*.h)
+
+ifeq ($(SRC_FILES),)
+	dummy := $(error Please copy the host bootloader sources into $(HOST_BOOTLOADER_DIR))
+endif
+
+CFLAGS := -I$(HOST_BOOTLOADER_DIR) -DCALL_CON= -g
+LFLAGS := -lrt
+
+all: cyhostboot
+
+$(BUILD_DIR)/%.o: $(HOST_BOOTLOADER_DIR)/%.c
+	@mkdir -p $(BUILD_DIR)
+	$(CC) -c -o $@ $^ $(CFLAGS) 
+
+cyhostboot: $(OBJ_FILES) $(SRC_DIR)/cyhostboot.c
+	$(CC) -o $@ $^ $(CFLAGS) $(LFLAGS)
+
+clean:
+	rm -rf cyhostboot $(BUILD_DIR)

host_bootloader_src/README

@@ -0,0 +1 @@
+This source folder should contains the cypress host bootloader sources

src/cyhostboot.c

@@ -0,0 +1,146 @@
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <termios.h>
+#include <time.h>
+#include <poll.h>
+#include <errno.h>
+
+#include <cybtldr_api.h>
+#include <cybtldr_api2.h>
+
+static char* g_tty_device = "/dev/ttyACM2";
+static int g_serial_fd = -1;
+
+unsigned long long timespec_milliseconds(struct timespec *a) 
+{
+	return a->tv_sec*1000 + a->tv_nsec/1000000;
+}
+
+static int serial_open()
+{
+	struct termios tty;
+
+	printf("Opening serial %s\n", g_tty_device);
+
+	g_serial_fd = open(g_tty_device, O_RDWR | O_NOCTTY);
+	if (g_serial_fd < 0) {
+		printf("Failed to open serial: %s\n", strerror(errno));
+		return 1;
+	}
+
+	if(tcgetattr(g_serial_fd, &tty) < 0) {
+		printf( "Failed to get serial port attribute\n");
+		return 1;
+	}
+
+	cfmakeraw(&tty);
+	/* Set Baud Rate */
+	cfsetospeed (&tty, (speed_t)B115200);
+	cfsetispeed (&tty, (speed_t)B115200);
+
+	tcflush(g_serial_fd, TCIFLUSH);
+	tcflush(g_serial_fd, TCOFLUSH);
+
+	if (tcsetattr(g_serial_fd, TCSANOW, &tty) < 0) {
+		printf( "Failed to set serial port attribute\n");
+		return 1;
+	}
+
+	return CYRET_SUCCESS;
+}
+
+static int serial_close()
+{
+	printf("Closing serial\n");
+	close(g_serial_fd);
+
+	return CYRET_SUCCESS;
+}
+
+static int serial_read(unsigned char *bytes, int size)
+{
+	struct timespec tp;
+	unsigned long long start_milli = 0, end_milli = 0;
+	ssize_t read_bytes;
+	struct pollfd fds[1];
+	int poll_ret;
+	unsigned int cur_byte = 0;
+
+	while(1) {
+		fds[0].revents = 0;
+		fds[0].events = POLLIN | POLLPRI;
+		fds[0].fd = g_serial_fd;
+		
+		clock_gettime(CLOCK_MONOTONIC, &tp);
+		end_milli = timespec_milliseconds(&tp);
+		if (start_milli && (end_milli - start_milli) > 1000)
+			return CYRET_SUCCESS;
+
+		poll_ret = poll(fds, 1, 0);
+		if (poll_ret == 0) {
+			continue;
+		} else if (poll_ret < 0) {
+			printf("Poll error: %s\n", strerror(errno));
+			return 1;
+		}
+		
+		clock_gettime(CLOCK_MONOTONIC, &tp);
+		start_milli = timespec_milliseconds(&tp);
+
+		read_bytes = read(g_serial_fd, &bytes[cur_byte++], 1);
+	}
+
+	return CYRET_SUCCESS;
+}
+
+static int serial_write(unsigned char *bytes, int size)
+{
+	int i;
+	ssize_t write_bytes;
+
+	printf("Serial: writing %d bytes to bootloader\n", size);
+	write_bytes = write(g_serial_fd, bytes, size);
+	if (write_bytes != size) {
+		printf("Error when writing bytes\n");
+		return 1;
+	}
+	return CYRET_SUCCESS;
+}
+
+
+CyBtldr_CommunicationsData serial_coms = {
+	.OpenConnection = serial_open,
+	.CloseConnection = serial_close,
+	.ReadData = serial_read,
+	.WriteData = serial_write,
+	.MaxTransferSize = 256,
+};
+
+
+void serial_progress_update(unsigned char arrayId, unsigned short rowNum)
+{
+	printf("Flashing array_id %d, row_num %d\n", arrayId, rowNum);
+}
+
+int main(int argc, char **argv)
+{
+	int ret;
+	g_tty_device = argv[2];
+	
+	printf("Starting programming\n");
+	ret = CyBtldr_RunAction(PROGRAM, argv[1], NULL, 1, &serial_coms, serial_progress_update);
+	if (ret != CYRET_SUCCESS) {
+		printf("Programming failed: %d\n", ret);
+		return 1;
+	}
+	printf("Starting verifying\n");
+	ret = CyBtldr_RunAction(VERIFY, argv[1], NULL, 1, &serial_coms, serial_progress_update);
+	if (ret != CYRET_SUCCESS) {
+		printf("Programming failed: %d\n", ret);
+		return 1;
+	}
+	return 0;
+}