Initial version of CCTL, 1KB serial bootloader for CC1110/CC1111

This commit is contained in:
Joby Taffey committed 2012-03-07 17:08:43 +00:00
commit 11cfdfdcdc
13 files changed
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CFLAGS=-Wall
TARGET=cctl-prog
all:
gcc -o $(TARGET) $(CFLAGS) $(TARGET).c hex.c
clean:
rm -f $(TARGET) $(TARGET).exe
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include <fcntl.h>
#include <unistd.h>
#include <termios.h>
#include <sys/select.h>
#include <sys/types.h>
#include <stdbool.h>
#include "hex.h"
int serial_open(char *port)
{
int fd;
struct termios t_opt;
fd = open(port, O_RDWR | O_NOCTTY);
if (fd == -1) {
fprintf(stderr, "Could not open serial port.");
return -1;
}
fcntl(fd, F_SETFL, 0);
tcgetattr(fd, &t_opt);
cfsetispeed(&t_opt, B115200);
cfsetospeed(&t_opt, B115200);
t_opt.c_cflag |= (CLOCAL | CREAD);
t_opt.c_cflag &= ~PARENB;
t_opt.c_cflag &= ~CSTOPB;
t_opt.c_cflag &= ~CSIZE;
t_opt.c_cflag |= CS8;
t_opt.c_lflag &= ~(ICANON | ECHO | ECHOE | ISIG);
t_opt.c_iflag &= ~(IXON | IXOFF | IXANY);
t_opt.c_oflag &= ~OPOST;
t_opt.c_cc[VMIN] = 0;
t_opt.c_cc[VTIME] = 10;
tcflush(fd, TCIFLUSH);
tcsetattr(fd, TCSANOW, &t_opt);
return fd;
}
int program_page(int fd, int page)
{
char cmd = 'p';
char rsp;
if (write(fd, &cmd, 1) <= 0)
return 1;
if (write(fd, &page, 1) <= 0)
return 1;
if (read(fd, &rsp, 1) <= 0 || rsp != 0)
return 1;
return 0;
}
int read_page(int fd, uint8_t page, uint8_t *data)
{
int remaining;
int rc;
char cmd = 'r';
char rsp;
if (write(fd, &cmd, 1) <= 0)
return 1;
if (write(fd, &page, 1) <= 0)
return 1;
remaining = 1024;
while(remaining > 0)
{
rc = read(fd, data + (1024 - remaining), remaining);
if (rc <= 0)
return 1;
remaining -= rc;
}
if (read(fd, &rsp, 1) <= 0 || rsp != 0)
return 1;
return 0;
}
int erase_page(int fd, uint8_t page)
{
char cmd = 'e';
char rsp;
if (write(fd, &cmd, 1) <= 0)
return 1;
if (write(fd, &page, 1) <= 0)
return 1;
if (read(fd, &rsp, 1) <= 0 || rsp != 0)
{
fprintf(stderr, "erase_page rsp=%02X\n", rsp);
return 1;
}
return 0;
}
int load_data(int fd, uint8_t *data)
{
int remaining;
int rc;
char cmd = 'l';
char rsp;
if (write(fd, &cmd, 1) <= 0)
return 1;
remaining = 1024;
while(remaining > 0)
{
rc = write(fd, data + (1024 - remaining), remaining);
if (rc <= 0)
return 1;
remaining -= rc;
}
if (read(fd, &rsp, 1) <= 0 || rsp != 0)
return 1;
return 0;
}
void dump(uint8_t *p, size_t len)
{
while(len--)
printf("%02X", *p++);
printf("\n");
}
int erase_program_verify_page(int fd, uint8_t *data, uint8_t page)
{
uint8_t verbuf[1024];
if (0 != load_data(fd, data))
{
fprintf(stderr, "load_data failed\n");
return 1;
}
if (0 != erase_page(fd, page))
{
fprintf(stderr, "erase_page failed\n");
return 1;
}
if (0 != program_page(fd, page))
{
fprintf(stderr, "program_page failed\n");
return 1;
}
if (0 != read_page(fd, page, verbuf))
{
fprintf(stderr, "read_page failed\n");
return 1;
}
if (0!=memcmp(verbuf, data, 1024))
{
fprintf(stderr, "verify failed\n");
printf("verbuf = ");
dump(verbuf, 1024);
printf("expected = ");
dump(data, 1024);
return 1;
}
return 0;
}
int wait_for_bootloader(int fd)
{
uint8_t c;
uint8_t prev_c = 0;
int attempts = 100;
while(attempts-- > 0)
{
printf("Waiting...\n");
if (read(fd, &c, 1) < 0)
return 1;
else
{
if (c == 'B' && prev_c == 'B')
break;
prev_c = c;
}
}
c = 0x00;
if (write(fd, &c, 1) <= 0)
return 1;
return 0;
}
int send_jump(int fd)
{
uint8_t cmd = 'j';
if (write(fd, &cmd, 1) <= 0)
return 1;
return 0;
}
int main(int argc, char *argv[])
{
int fd;
uint8_t buf[32*1024];
int i, j;
if (argc < 3)
{
fprintf(stderr, "Usage %s <serial device> <hex file>\n", argv[0]);
return 1;
}
fd = serial_open(argv[1]);
if (fd < 0)
{
fprintf(stderr, "Failed to open %s\n", argv[1]);
return 1;
}
memset(buf, 0xFF, sizeof(buf));
if (0 != read_hexfile(buf, sizeof(buf), argv[2]))
{
fprintf(stderr, "Failed to read %s\n", argv[2]);
return 1;
}
if (0 != wait_for_bootloader(fd))
{
fprintf(stderr, "No bootloader detected\n");
return 1;
}
for (i=0x400;i<32*1024;i+=1024)
{
bool all_empty = true;
for (j=i;j<i+1024;j++)
{
if (buf[j] != 0xFF)
{
all_empty = false;
break;
}
}
if (!all_empty)
{
printf("erase/write/verify page %d\n", i/1024);
if (0 != erase_program_verify_page(fd, buf + i, i/1024))
{
fprintf(stderr, "erase_program_verify_page failed\n");
return 1;
}
}
else
{
printf("erasing page %d\n", i/1024);
if (0 != erase_page(fd, i/1024))
{
fprintf(stderr, "erase failed\n");
return 1;
}
}
}
if (0 != send_jump(fd))
{
fprintf(stderr, "send jump failed\n");
}
close(fd);
return 0;
}
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#include <stdio.h>
#include <unistd.h>
#include <ctype.h>
#include <getopt.h>
#include <stdbool.h>
#include <stdint.h>
#include <string.h>
#include <stdlib.h>
#include <arpa/inet.h>
static uint8_t tolowercase(uint8_t ch)
{
if ((ch >= 'A') && (ch <= 'Z'))
return ch + 0x20; // Convert uppercase to lowercase
return ch; // Simply return original character if it doesn't require any adjustments
}
static int8_t parseHexDigit(uint8_t digit)
{
digit = tolowercase(digit);
if (isdigit(digit))
return (int8_t)digit - '0';
if ((digit >= 'a') && (digit <= 'f'))
return (int8_t)digit + 0xA - 'a';
return -1; // Error case - input wasn't a valid hex digit
}
static int hexstring_parse(const char *hexstr, uint8_t *buf, size_t *buflen)
{
size_t hexstrlen = *buflen * 2;
size_t i;
if (hexstrlen & 0x1)
{
fprintf(stderr, "hexstring_parse: not even\n");
return 1;
}
if (*buflen < hexstrlen/2)
{
fprintf(stderr, "hexstring_parse: buffer too small %d < %d\n", *buflen, hexstrlen/2);
return 1;
}
for (i=0;i<hexstrlen;i+=2)
{
int8_t a, b;
if (-1 == (a = parseHexDigit(hexstr[i])))
{
fprintf(stderr, "hexstring_parse: bad digit 0x%02X\n", hexstr[i]);
return 1;
}
if (-1 == (b = parseHexDigit(hexstr[i+1])))
{
fprintf(stderr, "hexstring_parse: bad digit 0x%02X\n", hexstr[i+1]);
return 1;
}
*buf++ = (a << 4) | b;
}
*buflen = hexstrlen/2;
return 0;
}
static int read_record(uint8_t *buf, size_t buflen, const char *line, bool *eof)
{
size_t len;
uint8_t sum = 0;
uint8_t record_sum;
uint8_t record_len;
uint8_t type;
uint16_t addr;
uint8_t data[256];
int i;
*eof = false;
if (line[0] != ':')
{
fprintf(stderr, "bad hexfile: no start\n");
return 1;
}
line+=1;
len = 1;
if (0 != hexstring_parse(line, &record_len, &len))
{
fprintf(stderr, "bad hexfile: no len '%s'\n", line);
return 1;
}
line+=len * 2;
len = 2;
if (0 != hexstring_parse(line, (uint8_t *)&addr, &len))
{
fprintf(stderr, "bad hexfile: no addr\n");
return 1;
}
addr = ntohs(addr);
line+=len * 2;
len = 1;
if (0 != hexstring_parse(line, &type, &len))
{
fprintf(stderr, "bad hexfile: no type\n");
return 1;
}
line+=len * 2;
len = record_len;
if (0 != hexstring_parse(line, data, &len))
{
fprintf(stderr, "bad hexfile: no data\n");
return 1;
}
line+=len * 2;
len = 1;
if (0 != hexstring_parse(line, &record_sum, &len))
{
fprintf(stderr, "bad hexfile: no sum\n");
return 1;
}
line+=len * 2;
if (type == 0)
{
sum += record_len;
sum += addr >> 8;
sum += addr & 0xFF;
for (i=0;i<record_len;i++)
sum += data[i];
sum = (sum ^ 0xFF) + 1;
if (sum != record_sum)
{
fprintf(stderr, "bad hexfile, checksum mismatch\n");
return 1;
}
if (addr + record_len > buflen)
{
fprintf(stderr, "bad hexfile, too big\n");
return 1;
}
memcpy(buf + addr, data, record_len);
}
else
if (type == 1)
{
*eof = true;
}
else
{
fprintf(stderr, "bad hexfile: unknown record type %02X\n", type);
}
return 0;
}
int read_hexfile(uint8_t *buf, size_t buflen, const char *filename)
{
FILE *fp;
char line[1024];
bool eof;
if (NULL == (fp = fopen(filename, "ro")))
return 1;
while (NULL != fgets(line, sizeof(line), fp))
{
char *p = (line + strlen(line)) - 1;
while(p > line)
{
if (isspace((int)(*p)))
*p = 0;
p--;
}
if (0 != read_record(buf, buflen, line, &eof))
goto fail;
if (eof)
break;
}
fclose(fp);
return 0;
fail:
fclose(fp);
return 1;
}
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#ifndef HEX_H
#define HEX_H 1
int read_hexfile(uint8_t *buf, size_t buflen, const char *filename);
#endif