static int
ugen_open(struct usb_fifo *f, int fflags)
{
struct usb_endpoint *ep = usb_fifo_softc(f);
struct usb_endpoint_descriptor *ed = ep->edesc;
uint8_t type;
DPRINTFN(6, "flag=0x%x\n", fflags);
mtx_lock(f->priv_mtx);
switch (usbd_get_speed(f->udev)) {
case USB_SPEED_LOW:
case USB_SPEED_FULL:
f->nframes = UGEN_HW_FRAMES;
f->bufsize = UGEN_BULK_FS_BUFFER_SIZE;
break;
default:
f->nframes = UGEN_HW_FRAMES * 8;
f->bufsize = UGEN_BULK_HS_BUFFER_SIZE;
break;
}
type = ed->bmAttributes & UE_XFERTYPE;
if (type == UE_INTERRUPT) {
f->bufsize = 0; /* use "wMaxPacketSize" */
}
f->timeout = USB_NO_TIMEOUT;
f->flag_short = 0;
f->fifo_zlp = 0;
mtx_unlock(f->priv_mtx);
return (0);
}
static int
ugen_transfer_setup(struct usb_fifo *f,
const struct usb_config *setup, uint8_t n_setup)
{
struct usb_endpoint *ep = usb_fifo_softc(f);
struct usb_device *udev = f->udev;
uint8_t iface_index = ep->iface_index;
int error;
mtx_unlock(f->priv_mtx);
/*
* "usbd_transfer_setup()" can sleep so one needs to make a wrapper,
* exiting the mutex and checking things
*/
error = usbd_transfer_setup(udev, &iface_index, f->xfer,
setup, n_setup, f, f->priv_mtx);
if (error == 0) {
if (f->xfer[0]->nframes == 1) {
error = usb_fifo_alloc_buffer(f,
f->xfer[0]->max_data_length, 2);
} else {
error = usb_fifo_alloc_buffer(f,
f->xfer[0]->max_frame_size,
2 * f->xfer[0]->nframes);
}
if (error) {
usbd_transfer_unsetup(f->xfer, n_setup);
}
}
mtx_lock(f->priv_mtx);
return (error);
}
static int
uhid_open(struct usb_fifo *fifo, int fflags)
{
struct uhid_softc *sc = usb_fifo_softc(fifo);
/*
* The buffers are one byte larger than maximum so that one
* can detect too large read/writes and short transfers:
*/
if (fflags & FREAD) {
/* reset flags */
sc->sc_flags &= ~UHID_FLAG_IMMED;
if (usb_fifo_alloc_buffer(fifo,
sc->sc_isize + 1, UHID_FRAME_NUM)) {
return (ENOMEM);
}
}
if (fflags & FWRITE) {
if (usb_fifo_alloc_buffer(fifo,
sc->sc_osize + 1, UHID_FRAME_NUM)) {
return (ENOMEM);
}
}
return (0);
}
static void
uhid_stop_write(struct usb_fifo *fifo)
{
struct uhid_softc *sc = usb_fifo_softc(fifo);
usbd_transfer_stop(sc->sc_xfer[UHID_CTRL_DT_WR]);
usbd_transfer_stop(sc->sc_xfer[UHID_INTR_DT_WR]);
}
static void
uhid_start_read(struct usb_fifo *fifo)
{
struct uhid_softc *sc = usb_fifo_softc(fifo);
if (sc->sc_flags & UHID_FLAG_IMMED) {
usbd_transfer_start(sc->sc_xfer[UHID_CTRL_DT_RD]);
} else {
usbd_transfer_start(sc->sc_xfer[UHID_INTR_DT_RD]);
}
}
static void
uhid_start_write(struct usb_fifo *fifo)
{
struct uhid_softc *sc = usb_fifo_softc(fifo);
if ((sc->sc_flags & UHID_FLAG_IMMED) ||
sc->sc_xfer[UHID_INTR_DT_WR] == NULL) {
usbd_transfer_start(sc->sc_xfer[UHID_CTRL_DT_WR]);
} else {
usbd_transfer_start(sc->sc_xfer[UHID_INTR_DT_WR]);
}
}
static int
ugen_get_endpoint_desc(struct usb_fifo *f,
struct usb_endpoint_descriptor *ed)
{
struct usb_endpoint *ep;
ep = usb_fifo_softc(f);
if (ep && ep->edesc) {
*ed = *ep->edesc;
} else {
return (EINVAL);
}
return (0);
}
static int
ugen_open_pipe_read(struct usb_fifo *f)
{
struct usb_config usb_config[2];
struct usb_endpoint *ep = usb_fifo_softc(f);
struct usb_endpoint_descriptor *ed = ep->edesc;
mtx_assert(f->priv_mtx, MA_OWNED);
if (f->xfer[0] || f->xfer[1]) {
/* transfers are already opened */
return (0);
}
bzero(usb_config, sizeof(usb_config));
usb_config[1].type = UE_CONTROL;
usb_config[1].endpoint = 0;
usb_config[1].direction = UE_DIR_ANY;
usb_config[1].timeout = 1000; /* 1 second */
usb_config[1].interval = 50;/* 50 milliseconds */
usb_config[1].bufsize = sizeof(struct usb_device_request);
usb_config[1].callback = &ugen_read_clear_stall_callback;
usb_config[1].usb_mode = USB_MODE_HOST;
usb_config[0].type = ed->bmAttributes & UE_XFERTYPE;
usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR;
usb_config[0].direction = UE_DIR_RX;
usb_config[0].interval = USB_DEFAULT_INTERVAL;
usb_config[0].flags.proxy_buffer = 1;
usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */
switch (ed->bmAttributes & UE_XFERTYPE) {
case UE_INTERRUPT:
case UE_BULK:
if (f->flag_short) {
usb_config[0].flags.short_xfer_ok = 1;
}
usb_config[0].timeout = f->timeout;
usb_config[0].frames = 1;
usb_config[0].callback = &ugen_default_read_callback;
usb_config[0].bufsize = f->bufsize;
if (ugen_transfer_setup(f, usb_config, 2)) {
return (EIO);
}
/* first transfer does not clear stall */
f->flag_stall = 0;
break;
case UE_ISOCHRONOUS:
usb_config[0].flags.short_xfer_ok = 1;
usb_config[0].bufsize = 0; /* use default */
usb_config[0].frames = f->nframes;
usb_config[0].callback = &ugen_isoc_read_callback;
usb_config[0].timeout = 0;
/* clone configuration */
usb_config[1] = usb_config[0];
if (ugen_transfer_setup(f, usb_config, 2)) {
return (EIO);
}
break;
default:
return (EINVAL);
}
return (0);
}
static int
uhid_ioctl(struct usb_fifo *fifo, u_long cmd, void *addr,
int fflags)
{
struct uhid_softc *sc = usb_fifo_softc(fifo);
struct usb_gen_descriptor *ugd;
uint32_t size;
int error = 0;
uint8_t id;
switch (cmd) {
case USB_GET_REPORT_DESC:
ugd = addr;
if (sc->sc_repdesc_size > ugd->ugd_maxlen) {
size = ugd->ugd_maxlen;
} else {
size = sc->sc_repdesc_size;
}
ugd->ugd_actlen = size;
if (ugd->ugd_data == NULL)
break; /* descriptor length only */
error = copyout(sc->sc_repdesc_ptr, ugd->ugd_data, size);
break;
case USB_SET_IMMED:
if (!(fflags & FREAD)) {
error = EPERM;
break;
}
if (*(int *)addr) {
/* do a test read */
error = uhid_get_report(sc, UHID_INPUT_REPORT,
sc->sc_iid, NULL, NULL, sc->sc_isize);
if (error) {
break;
}
mtx_lock(&sc->sc_mtx);
sc->sc_flags |= UHID_FLAG_IMMED;
mtx_unlock(&sc->sc_mtx);
} else {
mtx_lock(&sc->sc_mtx);
sc->sc_flags &= ~UHID_FLAG_IMMED;
mtx_unlock(&sc->sc_mtx);
}
break;
case USB_GET_REPORT:
if (!(fflags & FREAD)) {
error = EPERM;
break;
}
ugd = addr;
switch (ugd->ugd_report_type) {
case UHID_INPUT_REPORT:
size = sc->sc_isize;
id = sc->sc_iid;
break;
case UHID_OUTPUT_REPORT:
size = sc->sc_osize;
id = sc->sc_oid;
break;
case UHID_FEATURE_REPORT:
size = sc->sc_fsize;
id = sc->sc_fid;
break;
default:
return (EINVAL);
}
if (id != 0)
copyin(ugd->ugd_data, &id, 1);
error = uhid_get_report(sc, ugd->ugd_report_type, id,
NULL, ugd->ugd_data, imin(ugd->ugd_maxlen, size));
break;
case USB_SET_REPORT:
if (!(fflags & FWRITE)) {
error = EPERM;
break;
}
ugd = addr;
switch (ugd->ugd_report_type) {
case UHID_INPUT_REPORT:
size = sc->sc_isize;
id = sc->sc_iid;
break;
case UHID_OUTPUT_REPORT:
size = sc->sc_osize;
id = sc->sc_oid;
break;
case UHID_FEATURE_REPORT:
size = sc->sc_fsize;
id = sc->sc_fid;
break;
default:
return (EINVAL);
}
if (id != 0)
copyin(ugd->ugd_data, &id, 1);
error = uhid_set_report(sc, ugd->ugd_report_type, id,
NULL, ugd->ugd_data, imin(ugd->ugd_maxlen, size));
break;
case USB_GET_REPORT_ID:
*(int *)addr = 0; /* XXX: we only support reportid 0? */
break;
default:
error = EINVAL;
break;
}
return (error);
}
