#include <stdio.h>
-//#include <stdlib.h>
#include <string.h>
#include <stdint.h>
-//#include <pthread.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <linux/usbdevice_fs.h>
#include <linux/usb/ch9.h>
+#include <linux/input.h>
#define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
-#if 0
-#include "rawhid/hid.h"
-
-static int g_quit;
-
-static void *dbg_reader(void *arg)
-{
- char buf[65];
- int ret;
-
- buf[64] = 0;
-
- while (!g_quit) {
- ret = rawhid_recv(0, buf, 64, 1000);
- if (ret == 0)
- continue;
-
- if (ret != 64) {
- printf("\nrawhid_recv(dbg): %d\n", ret);
- return NULL;
- }
- printf("%s", buf);
- }
-
- // rawhid_close(0);
- return NULL;
-}
-#endif
-
struct teensy_dev {
int fd;
struct {
return retval;
}
+/* ?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;
+}
+
enum my_urbs {
URB_DATA_IN,
URB_DATA_OUT,
int main(int argc, char *argv[])
{
+ char buf_dbg[64 + 1], buf_in[64], buf_out[64];
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;
+ int i, ret;
+ int fd;
+
+ for (i = 1; i < argc; i++) {
+ 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;
+ }
dev.fd = -1;
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, NULL);
if (ret < 0) {
perror("select");
return 1;
}
+ /* 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]);
+ }
+ }
+
+ /* something from USB? */
if (FD_ISSET(dev.fd, &wfds)) {
reaped_urb = NULL;
ret = ioctl(dev.fd, USBDEVFS_REAPURB, &reaped_urb);
printf("*data*\n");
data_in_sent = 0;
}
+ if (reaped_urb == &urb[URB_DATA_OUT]) {
+ }
else if (reaped_urb == &urb[URB_DBG_IN]) {
/* debug text */
buf_dbg[reaped_urb->actual_length] = 0;
fprintf(stderr, "reaped unknown urb? %p\n", reaped_urb);
}
}
- continue;
-dev_close:
- close(dev.fd);
- dev.fd = -1;
- }
+ /* something to send? */
+ if (fixed_input_changed) {
+ memset(buf_out, 0, sizeof(buf_out));
+ memcpy(buf_out, fixed_input_state, sizeof(fixed_input_state));
-#if 0
- ret = rawhid_open(1, 0x16C0, 0x0486, 0xFFC9, 0x0004);
- if (ret <= 0) {
- fprintf(stderr, "dbg rawhid is missing\n");
- return 1;
- }
+ memset(&urb[URB_DATA_OUT], 0, sizeof(urb[URB_DATA_OUT]));
+ urb[URB_DATA_OUT].type = USBDEVFS_URB_TYPE_INTERRUPT;
+ urb[URB_DATA_OUT].endpoint = dev.ifaces[0].ep_out;
+ urb[URB_DATA_OUT].buffer = buf_out;
+ urb[URB_DATA_OUT].buffer_length = sizeof(buf_out);
- ret = rawhid_open(1, 0x16C0, 0x0486, 0xFFAB, 0x0200);
- if (ret <= 0) {
- fprintf(stderr, "data rawhid is missing\n");
- return 1;
- }
-
- pthread_t thread;
- ret = pthread_create(&thread, NULL, dbg_reader, NULL);
- if (ret) {
- fprintf(stderr, "pthread_create failed: %d\n", ret);
- return 1;
- }
-
- memset(buf, 0, sizeof(buf));
- snprintf(buf, sizeof(buf), "hi");
-
- ret = rawhid_send(1, buf, 64, 220);
- if (ret != 64) {
- fprintf(stderr, "send failed: %d\n", ret);
- }
-
- while (1) {
- // check if any Raw HID packet has arrived
- ret = rawhid_recv(1, buf, 64, 220);
- if (ret < 0) {
- fprintf(stderr, "\nrawhid_recv(1): %d\n", ret);
- break;
- }
- if (ret > 0) {
- printf("\nrecv %d bytes:\n", ret);
- for (i=0; i<ret; i++) {
- printf("%02X ", buf[i] & 255);
- if (i % 16 == 15 && i < ret-1) printf("\n");
+ ret = ioctl(dev.fd, USBDEVFS_SUBMITURB, &urb[URB_DATA_OUT]);
+ if (ret != 0) {
+ perror("USBDEVFS_SUBMITURB URB_DATA_OUT");
+ return 1;
}
- printf("\n");
}
- }
- // rawhid_close(1);
+ continue;
- g_quit = 1;
- pthread_join(thread, NULL);
-#endif
+dev_close:
+ close(dev.fd);
+ dev.fd = -1;
+ }
return 0;
}