razzor/multiboot_tool
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multiboot_tool/funk.c

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#include <stdio.h>
#include <stdlib.h>
#include <stddef.h> /* offsetof */
#include <unistd.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <termios.h>
#include <sys/time.h>
#include "chipinfo_avr.h"
#include "multiboot.h"
#include "optarg.h"
#define FUNK_BRIDGE_DEBUG 0
#define FUNK_PACKET_DEBUG 0
/* *********************************************************************** */
#define BRIDGE_CMD_TRANSMIT 'T'
#define BRIDGE_CMD_RECEIVE 'R'
#define BRIDGE_CMD_VERSION 'V'
#define BRIDGE_CAUSE_SUCCESS 0x00
#define BRIDGE_CAUSE_TIMEOUT 0x01
#define BRIDGE_CAUSE_NOT_SUPPORTED 0xF0
#define BRIDGE_CAUSE_INVALID_PARAMETER 0xF1
#define BRIDGE_CAUSE_UNSPECIFIED_ERROR 0xFF
/* *********************************************************************** */
#define MSG_TYPE_REQUEST 0x00 /* master -> slave req */
#define MSG_TYPE_CONFIRMATION 0x40 /* master -> slave rsp */
#define MSG_TYPE_INDICATION 0x80 /* slave -> master req */
#define MSG_TYPE_RESPONSE 0xC0 /* slave -> master rsp */
#define MSG_TYPE_MASK 0xC0
#define MSG_CMD_MASK 0x3F
#define MSG_CMD_SWITCHAPP_REQUEST (MSG_TYPE_REQUEST | 0x20)
#define MSG_CMD_SWITCHAPP_RESPONSE (MSG_TYPE_RESPONSE | 0x20)
#define MSG_CMD_VERSION_REQUEST (MSG_TYPE_REQUEST | 0x21)
#define MSG_CMD_VERSION_RESPONSE (MSG_TYPE_RESPONSE | 0x21)
#define MSG_CMD_CHIPINFO_REQUEST (MSG_TYPE_REQUEST | 0x22)
#define MSG_CMD_CHIPINFO_RESPONSE (MSG_TYPE_RESPONSE | 0x22)
#define MSG_CMD_READ_REQUEST (MSG_TYPE_REQUEST | 0x23)
#define MSG_CMD_READ_RESPONSE (MSG_TYPE_RESPONSE | 0x23)
#define MSG_CMD_WRITE_REQUEST (MSG_TYPE_REQUEST | 0x24)
#define MSG_CMD_WRITE_RESPONSE (MSG_TYPE_RESPONSE | 0x24)
#define CAUSE_SUCCESS 0x00
#define BOOTTYPE_BOOTLOADER 0x00
#define BOOTTYPE_APPLICATION 0x80
#define MEMTYPE_FLASH 0x01
#define MEMTYPE_EEPROM 0x02
/* *********************************************************************** */
struct bootloader_msg
{
uint8_t command;
uint8_t seqnum;
uint8_t cause;
union {
struct {
uint8_t app;
} switchapp;
struct {
uint8_t data[16];
} version;
struct {
uint8_t data[8];
} chipinfo;
struct {
uint16_t address;
uint8_t mem_type;
uint8_t size;
} read_req;
struct {
uint8_t data[32];
} read_rsp;
struct {
uint16_t address;
uint8_t mem_type;
uint8_t size;
uint8_t data[32];
} write_req;
} p;
} __attribute__ ((__packed__));
struct rfm12_pkt
{
uint8_t dest_address;
uint8_t source_address;
uint8_t data_length;
uint8_t header_checksum;
struct bootloader_msg msg;
} __attribute__ ((__packed__));
/* *********************************************************************** */
#define READ_BLOCK_SIZE 32 /* bytes in one flash/eeprom read request */
#define WRITE_BLOCK_SIZE 32 /* bytes in one eeprom write request */
/* *********************************************************************** */
#define ARRAY_SIZE(x) (sizeof(x) / sizeof(*x))
#define MIN(a, b) ((a) < (b) ? (a) : (b))
struct multiboot_ops funk_ops;
struct funk_privdata
{
char *device;
int fd;
int connected;
int address;
int src_address;
int seqnum;
int flashsize;
int flashpage;
int eepromsize;
struct termios oldtio;
};
static struct option funk_optargs[] =
{
{ "address", 1, 0, 'a'}, /* -a <addr> */
{ "device", 1, 0, 'd'}, /* [ -d <device> ] */
};
/* *************************************************************************
* funk_optarg_cb
* ************************************************************************* */
static int funk_optarg_cb(int val, const char *arg, void *privdata)
{
struct funk_privdata *funk = (struct funk_privdata *)privdata;
switch (val)
{
case 'a': /* address */
{
char *endptr;
funk->address = strtol(arg, &endptr, 16);
if (*endptr != '\0' || funk->address < 0x00 || funk->address > 0xFF) {
fprintf(stderr, "invalid address: '%s'\n", arg);
return -1;
}
}
break;
case 'd': /* device */
if (funk->device != NULL) {
fprintf(stderr, "invalid device: '%s'\n", optarg);
return -1;
}
funk->device = strdup(optarg);
if (funk->device == NULL) {
perror("strdup()");
return -1;
}
break;
case 'h':
case '?': /* error */
fprintf(stderr, "Usage: funkboot [options]\n"
" -a <address> - selects rfm12 address (0x00 - 0xFF)\n"
" -d <device> - selects funkbridge device\n"
" -r <flash|eeprom>:<file> - reads flash/eeprom to file (.bin | .hex | -)\n"
" -w <flash|eeprom>:<file> - write flash/eeprom from file (.bin | .hex)\n"
" -n - disable verify after write\n"
" -p <0|1|2> - progress bar mode\n"
"\n"
"Example: funkboot -d /dev/ttyUSB0 -a 0x22 -w flash:blmc.hex -w flash:blmc_eeprom.hex\n"
"\n");
return -1;
default:
return 1;
}
return 0;
} /* funk_optarg_cb */
/* *************************************************************************
* funk_alloc
* ************************************************************************* */
static struct multiboot * funk_alloc(void)
{
struct multiboot * mboot = malloc(sizeof(struct multiboot));
if (mboot == NULL)
{
return NULL;
}
memset(mboot, 0x00, sizeof(struct multiboot));
mboot->ops = &funk_ops;
struct funk_privdata *funk = malloc(sizeof(struct funk_privdata));
if (funk == NULL)
{
free(mboot);
return NULL;
}
memset(funk, 0x00, sizeof(struct funk_privdata));
funk->device = NULL;
funk->address = 0;
optarg_register(funk_optargs, ARRAY_SIZE(funk_optargs), funk_optarg_cb, (void *)funk);
mboot->privdata = funk;
return mboot;
} /* funk_alloc */
/* *************************************************************************
* funk_free
* ************************************************************************* */
static void funk_free(struct multiboot *mboot)
{
struct funk_privdata *funk = (struct funk_privdata *)mboot->privdata;
if (funk->device != NULL)
{
free(funk->device);
}
free(funk);
free(mboot);
} /* funk_free */
/* *************************************************************************
* funk_get_memtype
* ************************************************************************* */
static int funk_get_memtype(struct multiboot *mboot,
const char *memname)
{
/* unused parameter */
(void)mboot;
if (strcmp(memname, "flash") == 0)
{
return MEMTYPE_FLASH;
}
else if (strcmp(memname, "eeprom") == 0)
{
return MEMTYPE_EEPROM;
}
return -1;
} /* funk_get_memtype */
/* *************************************************************************
* funk_get_memsize
* ************************************************************************* */
static uint32_t funk_get_memsize(struct multiboot *mboot,
int memtype)
{
struct funk_privdata *funk = (struct funk_privdata *)mboot->privdata;
if (!funk->connected)
{
return 0;
}
switch (memtype)
{
case MEMTYPE_FLASH:
return funk->flashsize;
case MEMTYPE_EEPROM:
return funk->eepromsize;
default:
return 0;
}
} /* funk_get_memsize */
/* *************************************************************************
* funk_serial_read
* ************************************************************************* */
static int funk_serial_read(int fd, void *data, int size)
{
int pos = 0;
while (1)
{
fd_set fdset;
struct timeval timeout = { .tv_sec = 1, .tv_usec = 0 };
FD_ZERO(&fdset);
FD_SET(fd, &fdset);
int ret = select(fd +1, &fdset, NULL, NULL, &timeout);
if (ret == -1)
{
perror("select");
return -1;
}
else if (ret == 0)
{
break;
}
else if (FD_ISSET(fd, &fdset))
{
int len = read(fd, data + pos, size - pos);
if (len < 0)
{
return -1;
}
else
{
pos += len;
if (pos == size)
{
break;
}
}
}
}
return pos;
} /* funk_serial_read */
#if (FUNK_BRIDGE_DEBUG == 1) || (FUNK_PACKET_DEBUG == 1)
/* *************************************************************************
* funk_print_data
* ************************************************************************* */
static char * funk_print_data(uint8_t *data, uint16_t length)
{
int pos = 0, i = 0, j;
char *buf = malloc(length * 4 + 64);
while (pos < length)
{
i += sprintf(buf + i, "%04X: ", pos);
for (j = 0; j < 16; j++)
{
if (pos + j < length)
{
i += sprintf(buf + i, "%02X", data[pos + j]);
}
else
{
i += sprintf(buf + i, " ");
if (j % 2)
{
buf[i++] = ' ';
}
}
for (j = 0; j < 16; j++)
{
if (pos + j < length)
{
unsigned char val = data[pos + j];
if (val >= 0x20 && val < 0x80)
{
buf[i++] = val;
}
else
{
buf[i++] = '.';
}
}
else
{
buf[i++] = ' ';
}
}
pos += 16;
buf[i++] = '\r';
buf[i++] = '\n';
}
buf[i] = 0;
return buf;
} /* funk_print_data */
#endif
/* *************************************************************************
* funk_bridge_send
* ************************************************************************* */
static int funk_bridge_send(struct funk_privdata *funk,
uint8_t *header,
uint8_t headerlength,
uint8_t *data,
uint8_t datalength)
{
if (headerlength > 0)
{
if (write(funk->fd, header, headerlength) != headerlength)
{
return -1;
}
}
if (datalength > 0)
{
if (write(funk->fd, data, datalength) != datalength)
{
return -1;
}
}
#if (FUNK_BRIDGE_DEBUG == 1)
char *dump = funk_print_data(data, datalength);
printf("funk_bridge_send() cmd=0x%02x length=0x%02x\n%s\n", header[0], datalength, dump);
free(dump);
#endif
return 0;
} /* funk_bridge_send */
/* *************************************************************************
* funk_bridge_recv
* ************************************************************************* */
static int funk_bridge_recv(struct funk_privdata *funk,
uint8_t command,
uint8_t *cause,
uint8_t *buffer,
int buffersize)
{
uint8_t response[3];
int len;
len = funk_serial_read(funk->fd, response, sizeof(response));
if (len != sizeof(response))
{
fprintf(stderr, "short read() from device\n");
return -1;
}
if (response[0] != command)
{
fprintf(stderr, "invalid command response (0x%02x != 0x%02x)\n",
response[0], command);
return -1;
}
*cause = response[1];
uint16_t length = response[2];
uint16_t bufferpos = 0;
while (length > 0)
{
/* free space in output buffer? */
if ((bufferpos < buffersize) && (buffer != NULL))
{
uint16_t size = MIN(buffersize - bufferpos, length);
len = funk_serial_read(funk->fd, buffer + bufferpos, size);
if (len <= 0)
{
fprintf(stderr, "short read() from device (%d != %d)\n",
len, size);
return -1;
}
bufferpos += len;
length -= len;
}
else
{
uint8_t dummy[256];
/* no space in output buffer, but device still sends data -> do dummy read */
uint16_t size = MIN(sizeof(dummy), length);
len = funk_serial_read(funk->fd, dummy, size);
if (len <= 0)
{
fprintf(stderr, "short read() from device (%d != %d)\n",
len, size);
return -1;
}
length -= len;
}
}
#if (FUNK_BRIDGE_DEBUG == 1)
char *dump = funk_print_data(buffer, bufferpos);
printf("funk_bridge_recv() cmd=0x%02x cause=0x%02x length=0x%02x\n%s\n",
command, *cause, length, dump);
free(dump);
#endif
return bufferpos;
} /* funk_bridge_recv */
/* *************************************************************************
* funk_send_packet
* ************************************************************************* */
static int funk_send_packet(struct funk_privdata *funk,
struct rfm12_pkt *pkt,
int length)
{
uint8_t request[] = { BRIDGE_CMD_TRANSMIT, length };
int ret = funk_bridge_send(funk, request, sizeof(request), (uint8_t *)pkt, length);
if (ret < 0)
{
return ret;
}
uint8_t cause = BRIDGE_CAUSE_SUCCESS;
ret = funk_bridge_recv(funk, request[0], &cause, NULL, 0);
if (ret != 0)
{
return -1;
}
#if (FUNK_PACKET_DEBUG == 1)
char *dump = funk_print_data((uint8_t *)pkt, length);
printf("funk_send_packet() cause=0x%02x length=0x%02x\n%s\n",
cause, length, dump);
free(dump);
#endif
return (cause != BRIDGE_CAUSE_SUCCESS);
} /* funk_send_packet */
/* *************************************************************************
* funk_recv_packet
* ************************************************************************* */
static int funk_recv_packet(struct funk_privdata *funk,
struct rfm12_pkt *pkt,
int *length)
{
uint8_t request[] = { BRIDGE_CMD_RECEIVE, 0 };
int ret = funk_bridge_send(funk, request, sizeof(request), NULL, 0);
if (ret < 0)
{
return ret;
}
uint8_t cause = BRIDGE_CAUSE_SUCCESS;
ret = funk_bridge_recv(funk, request[0], &cause, (uint8_t *)pkt, *length);
if (ret < 0)
{
return -1;
}
*length = ret;
#if (FUNK_PACKET_DEBUG == 1)
char *dump = funk_print_data((uint8_t *)pkt, *length);
printf("funk_recv_packet() cause=0x%02x length=0x%02x\n%s\n", cause, *length, dump);
free(dump);
#endif
return (cause != BRIDGE_CAUSE_SUCCESS);
} /* funk_recv_packet */
/* *************************************************************************
* funk_bridge_version
* ************************************************************************* */
static int funk_bridge_version(struct funk_privdata *funk,
uint8_t *version,
int size)
{
uint8_t request[] = { BRIDGE_CMD_VERSION, 0 };
int ret = funk_bridge_send(funk, request, sizeof(request), NULL, 0);
if (ret < 0)
{
return ret;
}
uint8_t cause = BRIDGE_CAUSE_SUCCESS;
ret = funk_bridge_recv(funk, request[0], &cause, version, size);
if (ret < 0)
{
return ret;
}
version[ret] = '\0';
return (cause != BRIDGE_CAUSE_SUCCESS);
} /* funk_bridge_version */
/* *************************************************************************
* funk_close_device
* ************************************************************************* */
static void funk_close_device(struct funk_privdata *funk)
{
/* delay close() / tcsetattr() */
usleep(100000);
tcsetattr(funk->fd, TCSANOW, &funk->oldtio);
close(funk->fd);
} /* funk_close_device */
/* *************************************************************************
* funk_open_device
* ************************************************************************* */
static int funk_open_device(struct funk_privdata *funk)
{
funk->fd = open(funk->device, O_RDWR | O_NOCTTY | O_CLOEXEC);
if (funk->fd < 0)
{
perror("open()");
return -1;
}
if (tcgetattr(funk->fd, &funk->oldtio) < 0)
{
perror("tcgetattr(oldtio)");
close(funk->fd);
return -1;
}
struct termios newtio;
memset(&newtio, 0, sizeof(newtio));
newtio.c_iflag |= IGNBRK;
newtio.c_cflag |= B38400 | CS8 | CLOCAL | CREAD;
newtio.c_cc[VMIN] = 1;
newtio.c_cc[VTIME] = 0;
int err = tcsetattr(funk->fd, TCSANOW, &newtio);
if (err < 0)
{
perror("tcsetattr(newtio)");
close(funk->fd);
return -1;
}
funk->connected = 1;
return 0;
} /* funk_open_device */
/* *************************************************************************
* funk_switch_application
* ************************************************************************* */
static int funk_switch_application(struct funk_privdata *funk,
uint8_t application)
{
struct rfm12_pkt packet;
packet.dest_address = funk->address;
packet.source_address = 0xCC; // TODO: changed in bridge
packet.data_length = 0x04;
packet.header_checksum = 0xCC; // TODO: calced in bridge
packet.msg.command = MSG_CMD_SWITCHAPP_REQUEST;
packet.msg.seqnum = ++funk->seqnum; // TODO: retransmit in bridge?
packet.msg.cause = CAUSE_SUCCESS;
packet.msg.p.switchapp.app = application;
int ret = funk_send_packet(funk, &packet, 4 + packet.data_length);
if (ret < 0)
{
fprintf(stderr, "funk_switch_application(): funk_send_packet()\n");
return ret;
}
int response_size = sizeof(packet);
ret = funk_recv_packet(funk, &packet, &response_size);
if (ret < 0)
{
fprintf(stderr, "funk_switch_application(): funk_recv_packet()\n");
return ret;
}
if ((packet.msg.command != MSG_CMD_SWITCHAPP_RESPONSE) ||
(packet.msg.cause != CAUSE_SUCCESS)
)
{
return -1;
}
return 0;
} /* funk_switch_application */
/* *************************************************************************
* funk_read_version
* ************************************************************************* */
static int funk_read_version(struct funk_privdata *funk,
uint8_t *version,
uint16_t length)
{
struct rfm12_pkt packet;
packet.dest_address = funk->address;
packet.source_address = 0xCC; // TODO: changed in bridge
packet.data_length = 0x03;
packet.header_checksum = 0xCC; // TODO: calced in bridge
packet.msg.command = MSG_CMD_VERSION_REQUEST;
packet.msg.seqnum = ++funk->seqnum; // TODO: retransmit in bridge?
packet.msg.cause = CAUSE_SUCCESS;
int ret = funk_send_packet(funk, &packet, 4 + packet.data_length);
if (ret < 0)
{
fprintf(stderr, "funk_read_version(): funk_send_packet()\n");
return ret;
}
int response_size = sizeof(packet);
ret = funk_recv_packet(funk, &packet, &response_size);
if (ret < 0)
{
fprintf(stderr, "funk_read_version(): funk_recv_packet()\n");
return ret;
}
if ((packet.msg.command != MSG_CMD_VERSION_RESPONSE) ||
(packet.msg.cause != CAUSE_SUCCESS)
)
{
return -1;
}
int i;
for (i = 0; i < MIN(length, packet.data_length -3); i++)
{
version[i] = packet.msg.p.version.data[i] & 0x7F;
}
version[i] = '\0';
return 0;
} /* funk_read_version */
/* *************************************************************************
* funk_read_chipinfo
* ************************************************************************* */
static int funk_read_chipinfo(struct funk_privdata *funk,
uint8_t *chipinfo,
uint16_t length)
{
struct rfm12_pkt packet;
packet.dest_address = funk->address;
packet.source_address = 0xCC; // TODO: changed in bridge
packet.data_length = 0x03;
packet.header_checksum = 0xCC; // TODO: calced in bridge
packet.msg.command = MSG_CMD_CHIPINFO_REQUEST;
packet.msg.seqnum = ++funk->seqnum; // TODO: retransmit in bridge?
packet.msg.cause = CAUSE_SUCCESS;
int ret = funk_send_packet(funk, &packet, 4 + packet.data_length);
if (ret < 0)
{
fprintf(stderr, "funk_read_chipinfo(): funk_send_packet()\n");
return ret;
}
int response_size = sizeof(packet);
ret = funk_recv_packet(funk, &packet, &response_size);
if (ret < 0) {
fprintf(stderr, "funk_read_chipinfo(): funk_recv_packet()\n");
return ret;
}
if ((packet.msg.command != MSG_CMD_CHIPINFO_RESPONSE) ||
(packet.msg.cause != CAUSE_SUCCESS)
)
{
return -1;
}
memcpy(chipinfo, packet.msg.p.chipinfo.data, MIN(packet.data_length -3, length));
return 0;
} /* funk_read_chipinfo */
/* *************************************************************************
* funk_read_memory
* ************************************************************************* */
static int funk_read_memory(struct funk_privdata *funk,
uint8_t *buffer,
uint16_t size,
uint8_t memtype,
uint16_t address)
{
struct rfm12_pkt packet;
packet.dest_address = funk->address;
packet.source_address = 0xCC; // TODO: changed in bridge
packet.data_length = 0x07;
packet.header_checksum = 0xCC; // TODO: calced in bridge
packet.msg.command = MSG_CMD_READ_REQUEST;
packet.msg.seqnum = ++funk->seqnum; // TODO: retransmit in bridge?
packet.msg.cause = CAUSE_SUCCESS;
packet.msg.p.read_req.address = address;
packet.msg.p.read_req.mem_type = memtype;
packet.msg.p.read_req.size = size;
int ret = funk_send_packet(funk, &packet, 4 + packet.data_length);
if (ret < 0) {
fprintf(stderr, "funk_read_memory(): funk_send_packet()\n");
return ret;
}
int response_size = sizeof(packet);
ret = funk_recv_packet(funk, &packet, &response_size);
if (ret < 0) {
fprintf(stderr, "funk_read_memory(): funk_recv_packet()\n");
return ret;
}
if ((packet.msg.command != MSG_CMD_READ_RESPONSE) ||
(packet.msg.cause != CAUSE_SUCCESS)
)
{
return -1;
}
memcpy(buffer, packet.msg.p.read_rsp.data, MIN(packet.data_length -3, size));
return 0;
} /* funk_read_memory */
/* *************************************************************************
* __funk_write_memory
* ************************************************************************* */
static int __funk_write_memory(struct funk_privdata *funk,
uint8_t *buffer,
uint16_t size,
uint8_t memtype,
uint16_t address)
{
struct rfm12_pkt packet;
packet.dest_address = funk->address;
packet.source_address = 0xCC; // TODO: changed in bridge
packet.data_length = 0x07 + size;
packet.header_checksum = 0xCC; // TODO: calced in bridge
packet.msg.command = MSG_CMD_WRITE_REQUEST;
packet.msg.seqnum = ++funk->seqnum; // TODO: retransmit in bridge?
packet.msg.cause = CAUSE_SUCCESS;
packet.msg.p.write_req.address = address;
packet.msg.p.write_req.mem_type = memtype;
packet.msg.p.write_req.size = size;
memcpy(packet.msg.p.write_req.data, buffer, size);
int ret = funk_send_packet(funk, &packet, 4 + packet.data_length);
if (ret < 0)
{
fprintf(stderr, "funk_write_memory(): funk_send_packet()\n");
return ret;
}
int response_size = sizeof(packet);
ret = funk_recv_packet(funk, &packet, &response_size);
if (ret < 0)
{
fprintf(stderr, "funk_write_memory(): funk_recv_packet()\n");
return ret;
}
if ((packet.msg.command != MSG_CMD_WRITE_RESPONSE) ||
(packet.msg.cause != CAUSE_SUCCESS)
)
{
return -1;
}
return 0;
} /* __funk_write_memory */
/* *************************************************************************
* funk_write_memory
* ************************************************************************* */
static int funk_write_memory(struct funk_privdata *funk,
uint8_t *buffer,
uint16_t size,
uint8_t memtype,
uint16_t address)
{
if (memtype == MEMTYPE_EEPROM)
{
return __funk_write_memory(funk, buffer, size, memtype, address);
}
else if ((address & (funk->flashpage -1)) != 0x00)
{
fprintf(stderr, "funk_write_memory(): address 0x%04x not aligned to pagesize 0x%02x\n", address, funk->flashpage);
return -1;
}
uint8_t *pagebuf = malloc(funk->flashpage);
if (pagebuf == NULL)
{
perror("malloc()");
return -1;
}
memcpy(pagebuf, buffer, size);
memset(pagebuf + size, 0xFF, funk->flashpage - size);
int pos = 0;
int ret = 0;
for (pos = 0; pos < funk->flashpage; pos += WRITE_BLOCK_SIZE)
{
ret = __funk_write_memory(funk, &pagebuf[pos], WRITE_BLOCK_SIZE, memtype, address + pos);
if (ret < 0)
{
break;
}
}
free(pagebuf);
return ret;
} /* funk_write_memory */
/* *************************************************************************
* funk_close
* ************************************************************************* */
static int funk_close(struct multiboot *mboot)
{
struct funk_privdata *funk = (struct funk_privdata *)mboot->privdata;
if (funk->connected)
{
funk_switch_application(funk, BOOTTYPE_APPLICATION);
}
funk_close_device(funk);
return 0;
} /* funk_close */
/* *************************************************************************
* funk_open
* ************************************************************************* */
static int funk_open(struct multiboot *mboot)
{
struct funk_privdata *funk = (struct funk_privdata *)mboot->privdata;
if (funk->address == 0)
{
fprintf(stderr, "abort: no address given\n");
return -1;
}
if (funk->device == NULL)
{
fprintf(stderr, "abort: no device given\n");
return -1;
}
if (funk_open_device(funk) < 0)
{
return -1;
}
printf("funkbridge dev : %-16s\n", funk->device);
char bridge_version[20];
if (funk_bridge_version(funk, (uint8_t *)bridge_version, sizeof(bridge_version)))
{
fprintf(stderr, "failed to get funkbridge version\n");
funk_close(mboot);
return -1;
}
printf("funkbridge ver : %-16s\n", bridge_version);
if (funk_switch_application(funk, BOOTTYPE_BOOTLOADER))
{
fprintf(stderr, "failed to switch to bootloader (invalid address?)\n");
funk_close(mboot);
return -1;
}
printf("address : 0x%02X\n", funk->address);
/* wait for watchdog and startup time */
usleep(100000);
char version[20];
if (funk_read_version(funk, (uint8_t *)version, sizeof(version)))
{
fprintf(stderr, "failed to get bootloader version\n");
funk_close(mboot);
return -1;
}
uint8_t chipinfo[8];
if (funk_read_chipinfo(funk, chipinfo, sizeof(chipinfo)))
{
fprintf(stderr, "failed to get bootloader chipinfo\n");
funk_close(mboot);
return -1;
}
const char *chipname = chipinfo_get_avr_name(chipinfo);
funk->flashpage = chipinfo[3];
funk->flashsize = (chipinfo[4] << 8) + chipinfo[5];
funk->eepromsize = (chipinfo[6] << 8) + chipinfo[7];
printf("version : %-16s (sig: 0x%02x 0x%02x 0x%02x => %s)\n",
version, chipinfo[0], chipinfo[1], chipinfo[2], chipname);
printf("flash size : 0x%04x / %5d (0x%02x bytes/page)\n",
funk->flashsize, funk->flashsize, funk->flashpage);
printf("eeprom size : 0x%04x / %5d\n",
funk->eepromsize, funk->eepromsize);
return 0;
} /* funk_open */
/* *************************************************************************
* funk_read
* ************************************************************************* */
static int funk_read(struct multiboot *mboot,
struct databuf *dbuf,
int memtype)
{
struct funk_privdata *funk = (struct funk_privdata *)mboot->privdata;
char *progress_msg = (memtype == MEMTYPE_FLASH) ? "reading flash" : "reading eeprom";
uint16_t pos = 0;
uint16_t size = (memtype == MEMTYPE_FLASH) ? funk->flashsize : funk->eepromsize;
while (pos < size)
{
mboot->progress_cb(progress_msg, pos, size);
uint16_t len = MIN(READ_BLOCK_SIZE, size - pos);
if (funk_read_memory(funk, dbuf->data + pos, len, memtype, pos))
{
mboot->progress_cb(progress_msg, -1, -1);
return -1;
}
pos += len;
}
dbuf->length = pos;
mboot->progress_cb(progress_msg, pos, size);
return 0;
} /* funk_read */
/* *************************************************************************
* funk_write
* ************************************************************************* */
static int funk_write(struct multiboot *mboot,
struct databuf *dbuf,
int memtype)
{
struct funk_privdata *funk = (struct funk_privdata *)mboot->privdata;
char *progress_msg = (memtype == MEMTYPE_FLASH) ? "writing flash" : "writing eeprom";
uint16_t pos = 0;
while (pos < dbuf->length)
{
mboot->progress_cb(progress_msg, pos, dbuf->length);
uint16_t len = (memtype == MEMTYPE_FLASH) ? funk->flashpage : WRITE_BLOCK_SIZE;
len = MIN(len, dbuf->length - pos);
if (funk_write_memory(funk, dbuf->data + pos, len, memtype, pos))
{
mboot->progress_cb(progress_msg, -1, -1);
return -1;
}
pos += len;
}
mboot->progress_cb(progress_msg, pos, dbuf->length);
return 0;
} /* funk_write */
/* *************************************************************************
* funk_verify
* ************************************************************************* */
static int funk_verify(struct multiboot *mboot,
struct databuf *dbuf,
int memtype)
{
struct funk_privdata *funk = (struct funk_privdata *)mboot->privdata;
char *progress_msg = (memtype == MEMTYPE_FLASH) ? "verifing flash" : "verifing eeprom";
uint16_t pos = 0;
uint8_t comp[READ_BLOCK_SIZE];
while (pos < dbuf->length)
{
mboot->progress_cb(progress_msg, pos, dbuf->length);
uint16_t len = MIN(READ_BLOCK_SIZE, dbuf->length - pos);
if (funk_read_memory(funk, comp, len, memtype, pos))
{
mboot->progress_cb(progress_msg, -1, -1);
return -1;
}
if (memcmp(comp, dbuf->data + pos, len) != 0x00)
{
mboot->progress_cb(progress_msg, -1, -1);
fprintf(stderr, "verify failed at page 0x%04x!!\n", pos);
return -1;
}
pos += len;
}
dbuf->length = pos;
mboot->progress_cb(progress_msg, pos, dbuf->length);
return 0;
} /* funk_verify */
struct multiboot_ops funk_ops =
{
.exec_name = "funkboot",
.alloc = funk_alloc,
.free = funk_free,
.get_memtype = funk_get_memtype,
.get_memsize = funk_get_memsize,
.open = funk_open,
.close = funk_close,
.read = funk_read,
.write = funk_write,
.verify = funk_verify,
};
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