#include <stdio.h>
+#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include <sys/types.h>
#include <sys/select.h>
#include <unistd.h>
#include <dirent.h>
+#include <signal.h>
+#include <termios.h>
#include <errno.h>
#include <linux/usbdevice_fs.h>
#include <linux/usb/ch9.h>
+#include <linux/input.h>
+#include "../pkts.h"
#define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
return retval;
}
+static int enable_echo(int enable)
+{
+ const char *portname = "/dev/tty";
+ struct termios tty;
+ int retval = -1;
+ int ret;
+ int fd;
+
+ memset(&tty, 0, sizeof(tty));
+
+ fd = open(portname, O_RDWR | O_NOCTTY | O_SYNC);
+ if (fd < 0) {
+ fprintf(stderr, "open %s: ", portname);
+ perror("");
+ return 1;
+ }
+
+ ret = tcgetattr(fd, &tty);
+ if (ret != 0) {
+ perror("tcgetattr");
+ goto out;
+ }
+
+ // printf("lflag: 0%o\n", tty.c_lflag);
+ if (enable)
+ tty.c_lflag |= ECHO;
+ else
+ tty.c_lflag &= ~ECHO;
+
+ ret = tcsetattr(fd, TCSANOW, &tty);
+ if (ret != 0) {
+ perror("tcsetattr");
+ goto out;
+ }
+
+ retval = 0;
+out:
+ close(fd);
+
+ return retval;
+}
+
+static void signal_handler(int sig)
+{
+ enable_echo(1);
+ signal(sig, SIG_DFL);
+ raise(sig);
+}
+
+/* ?0SA 00DU, ?1CB RLDU */
+#define STATE_BYTES 2
+
+static uint8_t fixed_input_state[STATE_BYTES] = { 0x33, 0x3f };
+
+enum mdbtn {
+ MDBTN_UP = 1,
+ MDBTN_DOWN,
+ MDBTN_LEFT,
+ MDBTN_RIGHT,
+ MDBTN_A,
+ MDBTN_B,
+ MDBTN_C,
+ MDBTN_START,
+};
+
+static const enum mdbtn evdev_md_map[KEY_CNT] = {
+ [KEY_UP] = MDBTN_UP,
+ [KEY_DOWN] = MDBTN_DOWN,
+ [KEY_LEFT] = MDBTN_LEFT,
+ [KEY_RIGHT] = MDBTN_RIGHT,
+ [KEY_HOME] = MDBTN_A,
+ [KEY_PAGEDOWN] = MDBTN_B,
+ [KEY_END] = MDBTN_C,
+ [KEY_LEFTALT] = MDBTN_START,
+};
+
+int do_evdev_input(int fd)
+{
+ uint8_t old_state[STATE_BYTES];
+ uint8_t changed_bits[STATE_BYTES] = { 0, };
+ struct input_event ev;
+ enum mdbtn mdbtn;
+ int i, ret;
+
+ ret = read(fd, &ev, sizeof(ev));
+ if (ret != sizeof(ev)) {
+ fprintf(stderr, "evdev read %d/%zd: ", ret, sizeof(ev));
+ perror("");
+ return 0;
+ }
+
+ if (ev.type != EV_KEY)
+ return 0;
+
+ if (ev.value != 0 && ev.value != 1)
+ return 0;
+
+ if ((uint32_t)ev.code >= ARRAY_SIZE(evdev_md_map)) {
+ fprintf(stderr, "evdev read bad key: %u\n", ev.code);
+ return 0;
+ }
+
+ mdbtn = evdev_md_map[ev.code];
+ if (mdbtn == 0)
+ return 0;
+
+ memcpy(old_state, fixed_input_state, STATE_BYTES);
+
+ /* ?0SA 00DU, ?1CB RLDU */
+ switch (mdbtn) {
+ case MDBTN_UP:
+ changed_bits[0] = 0x01;
+ changed_bits[1] = 0x01;
+ break;
+ case MDBTN_DOWN:
+ changed_bits[0] = 0x02;
+ changed_bits[1] = 0x02;
+ break;
+ case MDBTN_LEFT:
+ changed_bits[0] = 0x00;
+ changed_bits[1] = 0x04;
+ break;
+ case MDBTN_RIGHT:
+ changed_bits[0] = 0x00;
+ changed_bits[1] = 0x08;
+ break;
+ case MDBTN_A:
+ changed_bits[0] = 0x10;
+ changed_bits[1] = 0x00;
+ break;
+ case MDBTN_B:
+ changed_bits[0] = 0x00;
+ changed_bits[1] = 0x10;
+ break;
+ case MDBTN_C:
+ changed_bits[0] = 0x00;
+ changed_bits[1] = 0x20;
+ break;
+ case MDBTN_START:
+ changed_bits[0] = 0x20;
+ changed_bits[1] = 0x00;
+ break;
+ }
+
+ if (ev.value) {
+ // key press
+ for (i = 0; i < STATE_BYTES; i++)
+ fixed_input_state[i] &= ~changed_bits[i];
+ }
+ else {
+ // key release
+ for (i = 0; i < STATE_BYTES; i++)
+ fixed_input_state[i] |= changed_bits[i];
+ }
+
+ return memcmp(old_state, fixed_input_state, STATE_BYTES) ? 1 : 0;
+}
+
+struct gmv_tas {
+ char sig[15];
+ char ver;
+ uint32_t rerecord_count;
+ char ctrl1;
+ char ctrl2;
+ uint16_t flags;
+ char name[40];
+ uint8_t data[0][3];
+};
+
+static int submit_urb(int fd, struct usbdevfs_urb *urb, int ep,
+ void *buf, size_t buf_size)
+{
+ memset(urb, 0, sizeof(*urb));
+ urb->type = USBDEVFS_URB_TYPE_INTERRUPT;
+ urb->endpoint = ep;
+ urb->buffer = buf;
+ urb->buffer_length = buf_size;
+
+ return ioctl(fd, USBDEVFS_SUBMITURB, urb);
+}
+
enum my_urbs {
URB_DATA_IN,
URB_DATA_OUT,
URB_CNT
};
+static void missing_arg(int a)
+{
+ fprintf(stderr, "missing arg: %d\n", a);
+ exit(1);
+}
+
int main(int argc, char *argv[])
{
struct teensy_dev dev;
struct usbdevfs_urb urb[URB_CNT];
struct usbdevfs_urb *reaped_urb;
- char buf_dbg[64 + 1], buf_in[64];
+ int fixed_input_changed;
+ int evdev_fds[16];
+ int evdev_fd_cnt = 0;
+ int evdev_support;
int wait_device = 0;
int dbg_in_sent = 0;
int data_in_sent = 0;
- fd_set wfds;
- int ret;
+ fd_set rfds, wfds;
+ struct gmv_tas *gmv = NULL;
+ const char *tasfn = NULL;
+ int tas_skip = 0;
+ int enable_sent = 0;
+ int frame_count = 0;
+ int frames_sent = 0;
+ char buf_dbg[64 + 1];
+ struct tas_pkt pkt_in;
+ struct tas_pkt pkt_out;
+ struct timeval *timeout = NULL;
+ struct timeval tout;
+ int i, ret;
+ int fd;
+
+ for (i = 1; i < argc; i++) {
+ if (argv[i][0] == '-') {
+ switch (argv[i][1] | (argv[i][2] << 8)) {
+ case 'm':
+ i++;
+ if (argv[i] == NULL)
+ missing_arg(i);
+ tasfn = argv[i];
+ continue;
+ case 's':
+ i++;
+ if (argv[i] == NULL)
+ missing_arg(i);
+ tas_skip = atoi(argv[i]);
+ continue;
+ default:
+ fprintf(stderr, "bad arg: %s\n", argv[i]);
+ return 1;
+ }
+ }
+ if (evdev_fd_cnt >= ARRAY_SIZE(evdev_fds)) {
+ fprintf(stderr, "too many evdevs\n");
+ break;
+ }
+ fd = open(argv[i], O_RDONLY);
+ if (fd == -1) {
+ fprintf(stderr, "open %s: ", argv[i]);
+ perror("");
+ continue;
+ }
+ evdev_support = 0;
+ ret = ioctl(fd, EVIOCGBIT(0, sizeof(evdev_support)),
+ &evdev_support);
+ if (ret < 0)
+ perror("EVIOCGBIT");
+ if (!(evdev_support & (1 << EV_KEY))) {
+ fprintf(stderr, "%s doesn't have keys\n", argv[i]);
+ close(fd);
+ continue;
+ }
+ evdev_fds[evdev_fd_cnt++] = fd;
+ }
+
+ if (tasfn != NULL) {
+ long size;
+ FILE *f;
+
+ f = fopen(tasfn, "rb");
+ if (f == NULL) {
+ fprintf(stderr, "fopen %s: ", tasfn);
+ perror("");
+ return 1;
+ }
+
+ fseek(f, 0, SEEK_END);
+ size = ftell(f);
+ fseek(f, 0, SEEK_SET);
+ if (size < (long)sizeof(*gmv)) {
+ fprintf(stderr, "bad gmv size: %ld\n", size);
+ return 1;
+ }
+ gmv = malloc(size);
+ if (gmv == NULL) {
+ fprintf(stderr, "OOM?\n");
+ return 1;
+ }
+ ret = fread(gmv, 1, size, f);
+ if (ret != size) {
+ fprintf(stderr, "fread %d/%ld: ", ret, size);
+ perror("");
+ return 1;
+ }
+ fclose(f);
+ frame_count = (size - sizeof(*gmv)) / sizeof(gmv->data[0]);
+
+ /* check the GMV.. */
+ if (frame_count <= 0 || size != sizeof(*gmv) + frame_count * 3) {
+ fprintf(stderr, "broken gmv? frames=%d\n", frame_count);
+ return 1;
+ }
+
+ if (strncmp(gmv->sig, "Gens Movie TEST", 15) != 0) {
+ fprintf(stderr, "bad GMV sig\n");
+ return 1;
+ }
+ if (gmv->ctrl1 != '3') {
+ fprintf(stderr, "unhandled controlled config: '%c'\n", gmv->ctrl1);
+ //return 1;
+ }
+ if (gmv->ver >= 'A') {
+ if (gmv->flags & 0x40) {
+ fprintf(stderr, "unhandled flag: movie requires a savestate\n");
+ return 1;
+ }
+ if (gmv->flags & 0x20) {
+ fprintf(stderr, "unhandled flag: 3-player movie\n");
+ return 1;
+ }
+ if (gmv->flags & ~0x80) {
+ fprintf(stderr, "unhandled flag(s): %04x\n", gmv->flags);
+ //return 1;
+ }
+ }
+ gmv->name[39] = 0;
+ printf("loaded GMV: %s\n", gmv->name);
+ printf("%d frames, %u rerecords\n",
+ frame_count, gmv->rerecord_count);
+
+ if (tas_skip != 0) {
+ if (tas_skip >= frame_count || tas_skip <= -frame_count) {
+ printf("skip out of range: %d/%d\n", tas_skip, frame_count);
+ return 1;
+ }
+ if (tas_skip > 0) {
+ frame_count -= tas_skip;
+ memmove(&gmv->data[0], &gmv->data[tas_skip],
+ sizeof(gmv->data[0]) * frame_count);
+ }
+ else {
+ gmv = realloc(gmv, sizeof(*gmv)
+ + (frame_count - tas_skip) * sizeof(gmv->data[0]));
+ if (gmv == NULL) {
+ fprintf(stderr, "OOM?\n");
+ return 1;
+ }
+ memmove(&gmv->data[-tas_skip], &gmv->data[0],
+ sizeof(gmv->data[0]) * frame_count);
+ memset(&gmv->data[0], 0xff, sizeof(gmv->data[0]) * -tas_skip);
+ frame_count -= tas_skip;
+ }
+ }
+ }
+
+ enable_echo(0);
+ signal(SIGINT, signal_handler);
dev.fd = -1;
if (dev.fd == -1) {
ret = find_device(&dev, 0x16C0, 0x0486);
if (ret < 0)
- return ret;
+ break;
if (ret == 0) {
if (!wait_device) {
wait_device = 0;
data_in_sent = 0;
dbg_in_sent = 0;
+ enable_sent = 0;
+ frames_sent = 0;
+
+ /* we wait first, then send commands, but if teensy
+ * is started already, it won't send anything */
+ tout.tv_sec = 1;
+ tout.tv_usec = 0;
+ timeout = &tout;
}
if (!data_in_sent) {
- memset(&urb[URB_DATA_IN], 0, sizeof(urb[URB_DATA_IN]));
- urb[URB_DATA_IN].type = USBDEVFS_URB_TYPE_INTERRUPT;
- urb[URB_DATA_IN].endpoint = dev.ifaces[0].ep_in;
- urb[URB_DATA_IN].buffer = buf_in;
- urb[URB_DATA_IN].buffer_length = sizeof(buf_in);
-
- ret = ioctl(dev.fd, USBDEVFS_SUBMITURB, &urb[URB_DATA_IN]);
+ memset(&pkt_in, 0, sizeof(pkt_in));
+ ret = submit_urb(dev.fd, &urb[URB_DATA_IN], dev.ifaces[0].ep_in,
+ &pkt_in, sizeof(pkt_in));
if (ret != 0) {
perror("USBDEVFS_SUBMITURB URB_DATA_IN");
- return 1;
+ break;
}
+
data_in_sent = 1;
}
if (!dbg_in_sent) {
- memset(&urb[URB_DBG_IN], 0, sizeof(urb[URB_DBG_IN]));
- urb[URB_DBG_IN].type = USBDEVFS_URB_TYPE_INTERRUPT;
- urb[URB_DBG_IN].endpoint = dev.ifaces[1].ep_in;
- urb[URB_DBG_IN].buffer = buf_dbg;
- urb[URB_DBG_IN].buffer_length = sizeof(buf_dbg) - 1;
-
- ret = ioctl(dev.fd, USBDEVFS_SUBMITURB, &urb[URB_DBG_IN]);
+ ret = submit_urb(dev.fd, &urb[URB_DBG_IN], dev.ifaces[1].ep_in,
+ buf_dbg, sizeof(buf_dbg) - 1);
if (ret != 0) {
perror("USBDEVFS_SUBMITURB URB_DBG_IN");
- return 1;
+ break;
}
+
dbg_in_sent = 1;
}
+ FD_ZERO(&rfds);
+ for (i = 0; i < evdev_fd_cnt; i++)
+ FD_SET(evdev_fds[i], &rfds);
+
FD_ZERO(&wfds);
FD_SET(dev.fd, &wfds);
- ret = select(dev.fd + 1, NULL, &wfds, NULL, NULL);
+ ret = select(dev.fd + 1, &rfds, &wfds, NULL, timeout);
if (ret < 0) {
perror("select");
- return 1;
+ break;
+ }
+ timeout = NULL;
+
+ /* something from input devices? */
+ fixed_input_changed = 0;
+ for (i = 0; i < evdev_fd_cnt; i++) {
+ if (FD_ISSET(evdev_fds[i], &rfds)) {
+ fixed_input_changed |=
+ do_evdev_input(evdev_fds[i]);
+ }
}
- if (FD_ISSET(dev.fd, &wfds)) {
+ /* something from USB? */
+ if (FD_ISSET(dev.fd, &wfds))
+ {
reaped_urb = NULL;
ret = ioctl(dev.fd, USBDEVFS_REAPURB, &reaped_urb);
if (ret != 0) {
if (errno == ENODEV)
goto dev_close;
perror("USBDEVFS_REAPURB");
- return 1;
+ break;
}
if (reaped_urb != NULL && reaped_urb->status != 0) {
errno = -reaped_urb->status;
- perror("urb status");
+ if ((unsigned long)(reaped_urb - urb) < ARRAY_SIZE(urb))
+ fprintf(stderr, "urb #%zu: ", reaped_urb - urb);
+ else
+ fprintf(stderr, "unknown urb: ");
+ perror("");
if (reaped_urb->status == -EILSEQ) {
/* this is usually a sign of disconnect.. */
usleep(250000);
}
if (reaped_urb == &urb[URB_DATA_IN]) {
- printf("*data*\n");
+ /* some request from teensy */
+ int count;
+ uint8_t b;
+
+ switch (pkt_in.type) {
+ case PKT_STREAM_REQ:
+ printf("%d/%d\n", frames_sent, frame_count);
+
+ for (i = 0; i < sizeof(pkt_out.data); i++) {
+ pkt_out.data[i * 2 + 0] = 0x33;
+ pkt_out.data[i * 2 + 1] = 0x3f;
+ }
+ if (frames_sent < frame_count) {
+ pkt_out.type = PKT_STREAM_DATA;
+
+ count = frame_count - frames_sent;
+ if (count > sizeof(pkt_out.data) / 2)
+ count = sizeof(pkt_out.data) / 2;
+ for (i = 0; i < count; i++) {
+ /* SCBA RLDU */
+ b = gmv->data[frames_sent][0];
+
+ /* ?0SA 00DU, ?1CB RLDU */
+ pkt_out.data[i * 2 + 0] = (b & 0x13) | ((b >> 2) & 0x20);
+ pkt_out.data[i * 2 + 1] = (b & 0x0f) | ((b >> 1) & 0x30);
+
+ if (gmv->data[frames_sent][1] != 0xff
+ || gmv->data[frames_sent][2] != 0xff)
+ {
+ fprintf(stderr, "f %d: unhandled byte(s) %02x %02x\n",
+ frames_sent, gmv->data[frames_sent][1],
+ gmv->data[frames_sent][2]);
+ }
+
+ frames_sent++;
+ }
+ }
+ else
+ pkt_out.type = PKT_STREAM_END;
+
+ ret = submit_urb(dev.fd, &urb[URB_DATA_OUT],
+ dev.ifaces[0].ep_out, &pkt_out, sizeof(pkt_out));
+ if (ret != 0)
+ perror("USBDEVFS_SUBMITURB URB_DATA_OUT PKT_STREAM_DATA");
+ break;
+
+ default:
+ printf("host: got unknown pkt type: %04x\n", pkt_in.type);
+ break;
+ }
+
data_in_sent = 0;
}
+ else if (reaped_urb == &urb[URB_DATA_OUT]) {
+ }
else if (reaped_urb == &urb[URB_DBG_IN]) {
/* debug text */
buf_dbg[reaped_urb->actual_length] = 0;
dbg_in_sent = 0;
}
else {
- fprintf(stderr, "reaped unknown urb? %p\n", reaped_urb);
+ fprintf(stderr, "reaped unknown urb? %p #%zu\n",
+ reaped_urb, reaped_urb - urb);
}
}
+
+ /* something to send? */
+ if (gmv != NULL && !enable_sent) {
+ memset(&pkt_out, 0, sizeof(pkt_out));
+ pkt_out.type = PKT_STREAM_ENABLE;
+ ret = submit_urb(dev.fd, &urb[URB_DATA_OUT], dev.ifaces[0].ep_out,
+ &pkt_out, sizeof(pkt_out));
+ if (ret != 0) {
+ perror("USBDEVFS_SUBMITURB PKT_STREAM_ENABLE");
+ continue;
+ }
+ enable_sent = 1;
+ }
+ if (gmv == NULL && fixed_input_changed) {
+ memset(&pkt_out, 0, sizeof(pkt_out));
+ pkt_out.type = PKT_FIXED_STATE;
+ memcpy(pkt_out.data, fixed_input_state, sizeof(fixed_input_state));
+
+ ret = submit_urb(dev.fd, &urb[URB_DATA_OUT], dev.ifaces[0].ep_out,
+ &pkt_out, sizeof(pkt_out));
+ if (ret != 0) {
+ perror("USBDEVFS_SUBMITURB URB_DATA_OUT");
+ break;
+ }
+ }
+
continue;
dev_close:
dev.fd = -1;
}
- return 0;
+ enable_echo(1);
+
+ return ret;
}
// vim: ts=2:sw=2:expandtab
notaz.gp2x.de / megadrive.git / blobdiff