#include <sys/io.h>
#include <signal.h>
#include <sys/time.h>
+#include <zlib.h>
#include "transfer.h"
#define timediff(now, start) \
((now.tv_sec - start.tv_sec) * 1000000 + now.tv_usec - start.tv_usec)
-static void do_exit(const char *msg)
+#define PBE2(p) ((*(p) << 8) | *(p+1))
+#define PBE3(p) ((*(p) << 16) | (*(p + 1) << 8) | *(p + 2))
+#define PBE4(p) ((*(p) << 24) | (*(p + 1) << 16) | (*(p + 2) << 8) | *(p + 3))
+
+static void do_exit(const char *msg, const char *where)
{
/* switch TL back to high */
outb(0xe0, PORT_CONTROL);
+ if (where)
+ fprintf(stderr, "%s: ", where);
if (msg)
- printf("%s", msg);
+ fprintf(stderr, "%s", msg);
exit(1);
}
static void inthandler(int u)
{
- do_exit("\n");
+ do_exit("\n", NULL);
}
-static void wait_th_low(void)
+static void wait_th_low(const char *where)
{
struct timeval start, now;
while (inb(PORT_STATUS) & 0x40) {
gettimeofday(&now, NULL);
if (timediff(now, start) > ACK_TIMEOUT)
- do_exit("timeout waiting TH low\n");
+ do_exit("timeout waiting TH low\n", where);
}
}
-static void wait_th_high(void)
+static void wait_th_high(const char *where)
{
struct timeval start, now;
while (!(inb(PORT_STATUS) & 0x40)) {
gettimeofday(&now, NULL);
if (timediff(now, start) > ACK_TIMEOUT)
- do_exit("timeout waiting TH high\n");
+ do_exit("timeout waiting TH high\n", where);
}
}
+static void output_to_input(void)
+{
+ /* TL high, recv mode; also give time
+ * MD to see TL before we lower it in recv_byte */
+ outb(0xe0, PORT_CONTROL);
+ usleep(4*10); /* must be at least 12+8+8 M68k cycles, 28/7.67M */
+}
+
+static void input_to_output(void)
+{
+ wait_th_low("input_to_output");
+ outb(0xc0, PORT_CONTROL); /* TL high, out mode */
+}
+
static unsigned int recv_byte(void)
{
unsigned int byte;
outb(0xe2, PORT_CONTROL); /* TL low */
- wait_th_low();
+ wait_th_low("recv_byte");
byte = inb(PORT_DATA) & 0x0f;
outb(0xe0, PORT_CONTROL); /* TL high */
- wait_th_high();
+ wait_th_high("recv_byte");
byte |= inb(PORT_DATA) << 4;
return byte;
}
+static void recv_bytes(unsigned char *b, size_t count)
+{
+ while (count-- > 0)
+ *b++ = recv_byte();
+}
+
static void send_byte(unsigned int byte)
{
- wait_th_low();
+ wait_th_low("recv_bytes");
outb(byte & 0x0f, PORT_DATA);
outb(0xc2, PORT_CONTROL); /* TL low */
- wait_th_high();
+ wait_th_high("recv_bytes");
outb((byte >> 4) & 0x0f, PORT_DATA);
outb(0xc0, PORT_CONTROL); /* TL high */
}
+static void send_bytes(unsigned char *b, size_t count)
+{
+ while (count-- > 0)
+ send_byte(*b++);
+}
+
static void send_cmd(unsigned int cmd)
{
send_byte(CMD_PREFIX);
{
fprintf(stderr, "usage:\n%s <cmd> [args]\n"
"\tsend <file> <addr> [size]\n"
- "\trecv <file> <addr> <size>\n", argv0);
+ "\trecv <file> <addr> <size>\n"
+ "\tjump <addr>\n"
+ "\tio {r{8,16,32} <addr>,w{8,16,32} <addr> <data>}*\n"
+ "\tloadstate <picodrive_savestate>\n"
+ "\trecvvram <file>\n", argv0);
exit(1);
}
return i;
}
+static void checked_gzread(gzFile f, void *data, size_t size)
+{
+ unsigned int ret;
+ ret = gzread(f, data, size);
+ if (ret != size) {
+ fprintf(stderr, "gzread returned %d/%zu\n", ret, size);
+ exit(1);
+ }
+}
+
int main(int argc, char *argv[])
{
- unsigned int addr = 0, size = 0, i = 0;
+ unsigned int addr = 0, size = 0;
+ unsigned int count = 0, i = 0;
int ret;
unsigned char *data;
FILE *file = NULL;
memset(data, 0, size);
}
+ else if (strcmp(argv[1], "jump") == 0)
+ {
+ if (argc != 3)
+ usage(argv[0]);
+
+ addr = atoi_or_die(argv[2]);
+ }
+ else if (strcmp(argv[1], "io") == 0)
+ {
+ unsigned int cmd = 0, value, iosize;
+ unsigned char *p = data;
+
+ for (i = 2; i < argc; ) {
+ if (argv[i][0] == 'r')
+ cmd = IOSEQ_R8;
+ else if (argv[i][0] == 'w')
+ cmd = IOSEQ_W8;
+ else
+ usage(argv[0]);
+
+ iosize = atoi_or_die(&argv[i][1]);
+ if (iosize == 32)
+ cmd += 2;
+ else if (iosize == 16)
+ cmd += 1;
+ else if (iosize != 8)
+ usage(argv[0]);
+ *p++ = cmd;
+ i++;
+
+ addr = atoi_or_die(argv[i]);
+ *p++ = addr >> 16;
+ *p++ = addr >> 8;
+ *p++ = addr >> 0;
+ i++;
+
+ if (cmd == IOSEQ_W8 || cmd == IOSEQ_W16 || cmd == IOSEQ_W32) {
+ value = atoi_or_die(argv[i]);
+ switch (iosize) {
+ case 32:
+ *p++ = value >> 24;
+ *p++ = value >> 16;
+ case 16:
+ *p++ = value >> 8;
+ case 8:
+ *p++ = value >> 0;
+ }
+ i++;
+ }
+
+ count++;
+ }
+ }
+ else if (strcmp(argv[1], "loadstate") == 0)
+ {
+ unsigned char chunk;
+ char header[12];
+ gzFile f;
+ int len;
+
+ if (argc != 3)
+ usage(argv[0]);
+
+ f = gzopen(argv[2], "rb");
+ if (f == NULL) {
+ perror("gzopen");
+ return 1;
+ }
+
+ checked_gzread(f, header, sizeof(header));
+ if (strncmp(header, "PicoSEXT", 8) != 0) {
+ fprintf(stderr, "bad header\n");
+ return 1;
+ }
+
+ while (!gzeof(file))
+ {
+ ret = gzread(f, &chunk, 1);
+ if (ret == 0)
+ break;
+ checked_gzread(f, &len, 4);
+ //printf("%2d %x\n", chunk, len);
+ switch (chunk) {
+ case 3: // VRAM
+ checked_gzread(f, data, len);
+ size += len;
+ break;
+ case 5: // CRAM
+ checked_gzread(f, data + 0x10000, len);
+ size += len;
+ break;
+ case 6: // VSRAM
+ checked_gzread(f, data + 0x10080, len);
+ size += len;
+ break;
+ case 8: // video
+ checked_gzread(f, data + 0x10100, len);
+ data[size+0] &= ~1; // no display disable
+ data[size+1] |= 0x40; // no blanking
+ size += 0x20;
+ break;
+ default:
+ if (chunk > 64+8) {
+ fprintf(stderr, "bad chunk: %d\n", chunk);
+ return 1;
+ }
+ gzseek(f, len, SEEK_CUR);
+ break;
+ }
+ }
+ gzclose(f);
+ if (size != 0x10120) {
+ fprintf(stderr, "bad final size: %x\n", size);
+ return 1;
+ }
+ // unbyteswap *RAMs (stored byteswapped)
+ for (i = 0; i < 0x10100; i += 2) {
+ int tmp = data[i];
+ data[i] = data[i + 1];
+ data[i + 1] = tmp;
+ }
+ }
+ else if (strcmp(argv[1], "recvvram") == 0)
+ {
+ if (argc != 3)
+ usage(argv[0]);
+
+ file = fopen(argv[2], "wb");
+ if (file == NULL) {
+ fprintf(stderr, "can't open file: %s\n", argv[2]);
+ return 1;
+ }
+
+ size = 0x10000;
+ memset(data, 0, size);
+ }
else
usage(argv[0]);
printf("regs: %02x %02x %02x\n",
inb(PORT_DATA), inb(PORT_STATUS), inb(PORT_CONTROL));
+
+ /* wait for start condition */
+ if (!(inb(PORT_STATUS) & 0x40))
+ printf("waiting for TH high..\n");
+ while (!(inb(PORT_STATUS) & 0x40))
+ usleep(10000);
+
outb(0xe8, PORT_CONTROL); /* TR low - request for transfer */
+ /* wait for request ack */
if (inb(PORT_STATUS) & 0x40)
printf("waiting for TH low..\n");
- while (inb(PORT_STATUS) & 0x40)
- sleep(1);
+ for (i = 10000; inb(PORT_STATUS) & 0x40; i += 100) {
+ if (i > 100000)
+ i = 100000;
+ usleep(i);
+ }
outb(0xe0, PORT_CONTROL);
if (strcmp(argv[1], "send") == 0)
{
- printf("send %06x %06x\n", addr, size);
- send_cmd(CMD_MD_SEND);
+ send_cmd(CMD_PC_SEND);
send_byte((addr >> 16) & 0xff);
send_byte((addr >> 8) & 0xff);
send_byte((addr >> 0) & 0xff);
}
else if (strcmp(argv[1], "recv") == 0)
{
- send_cmd(CMD_MD_RECV);
+ send_cmd(CMD_PC_RECV);
send_byte((addr >> 16) & 0xff);
send_byte((addr >> 8) & 0xff);
send_byte((addr >> 0) & 0xff);
send_byte((size >> 16) & 0xff);
send_byte((size >> 8) & 0xff);
send_byte((size >> 0) & 0xff);
- outb(0xe0, PORT_CONTROL); /* TL high, recv mode */
+ output_to_input();
+
+ for (i = 0; i < size; i++)
+ {
+ if ((i & 0xff) == 0) {
+ printf("\b\b\b\b\b\b\b\b\b\b\b\b\b");
+ printf("%06x/%06x", i, size);
+ fflush(stdout);
+ }
+
+ data[i] = recv_byte();
+ }
+
+ fwrite(data, 1, size, file);
+ }
+ else if (strcmp(argv[1], "jump") == 0)
+ {
+ send_cmd(CMD_JUMP);
+ send_byte((addr >> 16) & 0xff);
+ send_byte((addr >> 8) & 0xff);
+ send_byte((addr >> 0) & 0xff);
+ }
+ else if (strcmp(argv[1], "io") == 0)
+ {
+ unsigned char *p = data;
+ unsigned char rdata[4];
+ send_cmd(CMD_IOSEQ);
+ send_byte((count >> 8) & 0xff);
+ send_byte((count >> 0) & 0xff);
+
+ for (; count > 0; count--) {
+ input_to_output();
+ send_bytes(p, 4); /* cmd + addr */
+
+ switch (p[0]) {
+ case IOSEQ_R8:
+ output_to_input();
+ recv_bytes(rdata, 1);
+ printf("r8 %06x %02x\n", PBE3(p + 1), rdata[0]);
+ p += 4;
+ break;
+ case IOSEQ_R16:
+ output_to_input();
+ recv_bytes(rdata, 2);
+ printf("r16 %06x %04x\n", PBE3(p + 1), PBE2(rdata));
+ p += 4;
+ break;
+ case IOSEQ_R32:
+ output_to_input();
+ recv_bytes(rdata, 4);
+ printf("r32 %06x %08x\n", PBE3(p + 1), PBE4(rdata));
+ p += 4;
+ break;
+ case IOSEQ_W8:
+ send_bytes(&p[4], 1);
+ printf("w8 %06x %02x\n", PBE3(p + 1), p[4]);
+ p += 5;
+ break;
+ case IOSEQ_W16:
+ send_bytes(&p[4], 2);
+ printf("w16 %06x %04x\n", PBE3(p + 1), PBE2(p + 4));
+ p += 6;
+ break;
+ case IOSEQ_W32:
+ send_bytes(&p[4], 4);
+ printf("w32 %06x %08x\n", PBE3(p + 1), PBE4(p + 4));
+ p += 8;
+ break;
+ default:
+ do_exit("error in ioseq data\n", NULL);
+ break;
+ }
+ }
+ }
+ else if (strcmp(argv[1], "loadstate") == 0)
+ {
+ send_cmd(CMD_LOADSTATE);
+
+ for (i = 0; i < size; i++)
+ {
+ if ((i & 0x1f) == 0) {
+ printf("\b\b\b\b\b\b\b\b\b\b\b\b\b");
+ printf("%06x/%06x", i, size);
+ fflush(stdout);
+ }
+
+ send_byte(data[i]);
+ }
+ }
+ else if (strcmp(argv[1], "recvvram") == 0)
+ {
+ send_cmd(CMD_VRAM_RECV);
+ output_to_input();
for (i = 0; i < size; i++)
{
fwrite(data, 1, size, file);
}
- printf("\b\b\b\b\b\b\b\b\b\b\b\b\b");
- printf("%06x/%06x\n", i, size);
- fclose(file);
+
+ if (size != 0) {
+ printf("\b\b\b\b\b\b\b\b\b\b\b\b\b");
+ printf("%06x/%06x\n", i, size);
+ }
+ if (file != NULL)
+ fclose(file);
/* switch TL back to high, disable outputs */
outb(0xe0, PORT_CONTROL);
notaz.gp2x.de / megadrive.git / blobdiff