645 lines
15 KiB
C
645 lines
15 KiB
C
|
/*-
|
||
|
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
|
||
|
*
|
||
|
* Copyright 2013, Michael Terrell <vashisnotatree@gmail.com>
|
||
|
* Copyright 2018, Johannes Lundberg <johalun0@gmail.com>
|
||
|
* All rights reserved.
|
||
|
*
|
||
|
* Redistribution and use in source and binary forms, with or without
|
||
|
* modification, are permitted provided that the following conditions
|
||
|
* are met:
|
||
|
* 1. Redistributions of source code must retain the above copyright
|
||
|
* notice, this list of conditions and the following disclaimer.
|
||
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||
|
* notice, this list of conditions and the following disclaimer in the
|
||
|
* documentation and/or other materials provided with the distribution.
|
||
|
*
|
||
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
||
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
||
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||
|
* SUCH DAMAGE.
|
||
|
*
|
||
|
* $FreeBSD$
|
||
|
*/
|
||
|
|
||
|
#include <sys/param.h>
|
||
|
#include <sys/module.h>
|
||
|
#include <sys/kernel.h>
|
||
|
#include <sys/systm.h>
|
||
|
|
||
|
#include <sys/conf.h>
|
||
|
#include <sys/bus.h>
|
||
|
#include <sys/lock.h>
|
||
|
#include <sys/mutex.h>
|
||
|
#include <sys/syslog.h>
|
||
|
#include <sys/fcntl.h>
|
||
|
|
||
|
#include <dev/usb/usb.h>
|
||
|
#include <dev/usb/usbdi.h>
|
||
|
#include <dev/usb/usbdi_util.h>
|
||
|
|
||
|
#include <dev/usb/usbhid.h>
|
||
|
#include <dev/usb/usb_ioctl.h>
|
||
|
|
||
|
#include "usb_rdesc.h"
|
||
|
|
||
|
#define UHID_SNES_IFQ_MAX_LEN 8
|
||
|
|
||
|
#define UREQ_GET_PORT_STATUS 0x01
|
||
|
#define UREQ_SOFT_RESET 0x02
|
||
|
|
||
|
#define UP 0x7f00
|
||
|
#define DOWN 0x7fff
|
||
|
#define LEFT 0x00ff
|
||
|
#define RIGHT 0xff7f
|
||
|
#define X 0x1f
|
||
|
#define Y 0x8f
|
||
|
#define A 0x2f
|
||
|
#define B 0x4f
|
||
|
#define SELECT 0x10
|
||
|
#define START 0x20
|
||
|
#define LEFT_T 0x01
|
||
|
#define RIGHT_T 0x02
|
||
|
|
||
|
static const uint8_t uhid_snes_report_descr[] = { UHID_SNES_REPORT_DESCR() };
|
||
|
|
||
|
#define SNES_DEV(v,p,i) { USB_VPI(v,p,i) }
|
||
|
|
||
|
static const STRUCT_USB_HOST_ID snes_devs[] = {
|
||
|
SNES_DEV(0x0810, 0xe501, 0), /* GeeekPi K-0161 */
|
||
|
SNES_DEV(0x0079, 0x0011, 0) /* Dragonrise */
|
||
|
};
|
||
|
|
||
|
enum {
|
||
|
UHID_SNES_INTR_DT_RD,
|
||
|
UHID_SNES_STATUS_DT_RD,
|
||
|
UHID_SNES_N_TRANSFER
|
||
|
};
|
||
|
|
||
|
struct uhid_snes_softc {
|
||
|
device_t sc_dev;
|
||
|
struct usb_device *sc_usb_device;
|
||
|
struct mtx sc_mutex;
|
||
|
struct usb_callout sc_watchdog;
|
||
|
uint8_t sc_iface_num;
|
||
|
struct usb_xfer *sc_transfer[UHID_SNES_N_TRANSFER];
|
||
|
struct usb_fifo_sc sc_fifo;
|
||
|
struct usb_fifo_sc sc_fifo_no_reset;
|
||
|
int sc_fflags;
|
||
|
struct usb_fifo *sc_fifo_open[2];
|
||
|
uint8_t sc_zero_length_packets;
|
||
|
uint8_t sc_previous_status;
|
||
|
uint8_t sc_iid;
|
||
|
uint8_t sc_oid;
|
||
|
uint8_t sc_fid;
|
||
|
uint8_t sc_iface_index;
|
||
|
|
||
|
uint32_t sc_isize;
|
||
|
uint32_t sc_osize;
|
||
|
uint32_t sc_fsize;
|
||
|
|
||
|
void *sc_repdesc_ptr;
|
||
|
|
||
|
uint16_t sc_repdesc_size;
|
||
|
|
||
|
struct usb_device *sc_udev;
|
||
|
#define UHID_FLAG_IMMED 0x01 /* set if read should be immediate */
|
||
|
|
||
|
};
|
||
|
|
||
|
static device_probe_t uhid_snes_probe;
|
||
|
static device_attach_t uhid_snes_attach;
|
||
|
static device_detach_t uhid_snes_detach;
|
||
|
|
||
|
static usb_fifo_open_t uhid_snes_open;
|
||
|
static usb_fifo_close_t uhid_snes_close;
|
||
|
static usb_fifo_ioctl_t uhid_snes_ioctl;
|
||
|
static usb_fifo_cmd_t uhid_snes_start_read;
|
||
|
static usb_fifo_cmd_t uhid_snes_stop_read;
|
||
|
|
||
|
static void uhid_snes_reset(struct uhid_snes_softc *);
|
||
|
static void uhid_snes_watchdog(void *);
|
||
|
|
||
|
static usb_callback_t uhid_snes_read_callback;
|
||
|
static usb_callback_t uhid_snes_status_callback;
|
||
|
|
||
|
static struct usb_fifo_methods uhid_snes_fifo_methods = {
|
||
|
.f_open = &uhid_snes_open,
|
||
|
.f_close = &uhid_snes_close,
|
||
|
.f_ioctl = &uhid_snes_ioctl,
|
||
|
.f_start_read = &uhid_snes_start_read,
|
||
|
.f_stop_read = &uhid_snes_stop_read,
|
||
|
.basename[0] = "uhid_snes"
|
||
|
};
|
||
|
|
||
|
static const struct usb_config uhid_snes_config[UHID_SNES_N_TRANSFER] = {
|
||
|
[UHID_SNES_INTR_DT_RD] = {
|
||
|
.callback = &uhid_snes_read_callback,
|
||
|
.bufsize = sizeof(struct usb_device_request) +1,
|
||
|
.flags = {.short_xfer_ok = 1, .short_frames_ok = 1,
|
||
|
.pipe_bof =1, .proxy_buffer =1},
|
||
|
.type = UE_INTERRUPT,
|
||
|
.endpoint = 0x81,
|
||
|
.direction = UE_DIR_IN
|
||
|
},
|
||
|
[UHID_SNES_STATUS_DT_RD] = {
|
||
|
.callback = &uhid_snes_status_callback,
|
||
|
.bufsize = sizeof(struct usb_device_request) + 1,
|
||
|
.timeout = 1000,
|
||
|
.type = UE_CONTROL,
|
||
|
.endpoint = 0x00,
|
||
|
.direction = UE_DIR_ANY
|
||
|
}
|
||
|
};
|
||
|
|
||
|
static int
|
||
|
uhid_get_report(struct uhid_snes_softc *sc, uint8_t type,
|
||
|
uint8_t id, void *kern_data, void *user_data, uint16_t len)
|
||
|
{
|
||
|
int err;
|
||
|
uint8_t free_data = 0;
|
||
|
|
||
|
if (kern_data == NULL) {
|
||
|
kern_data = malloc(len, M_USBDEV, M_WAITOK);
|
||
|
if (kern_data == NULL) {
|
||
|
err = ENOMEM;
|
||
|
goto done;
|
||
|
}
|
||
|
free_data = 1;
|
||
|
}
|
||
|
err = usbd_req_get_report(sc->sc_udev, NULL, kern_data,
|
||
|
len, sc->sc_iface_index, type, id);
|
||
|
if (err) {
|
||
|
err = ENXIO;
|
||
|
goto done;
|
||
|
}
|
||
|
if (user_data) {
|
||
|
/* dummy buffer */
|
||
|
err = copyout(kern_data, user_data, len);
|
||
|
if (err) {
|
||
|
goto done;
|
||
|
}
|
||
|
}
|
||
|
done:
|
||
|
if (free_data) {
|
||
|
free(kern_data, M_USBDEV);
|
||
|
}
|
||
|
return (err);
|
||
|
}
|
||
|
|
||
|
static int
|
||
|
uhid_set_report(struct uhid_snes_softc *sc, uint8_t type,
|
||
|
uint8_t id, void *kern_data, void *user_data, uint16_t len)
|
||
|
{
|
||
|
int err;
|
||
|
uint8_t free_data = 0;
|
||
|
|
||
|
if (kern_data == NULL) {
|
||
|
kern_data = malloc(len, M_USBDEV, M_WAITOK);
|
||
|
if (kern_data == NULL) {
|
||
|
err = ENOMEM;
|
||
|
goto done;
|
||
|
}
|
||
|
free_data = 1;
|
||
|
err = copyin(user_data, kern_data, len);
|
||
|
if (err) {
|
||
|
goto done;
|
||
|
}
|
||
|
}
|
||
|
err = usbd_req_set_report(sc->sc_udev, NULL, kern_data,
|
||
|
len, sc->sc_iface_index, type, id);
|
||
|
if (err) {
|
||
|
err = ENXIO;
|
||
|
goto done;
|
||
|
}
|
||
|
done:
|
||
|
if (free_data) {
|
||
|
free(kern_data, M_USBDEV);
|
||
|
}
|
||
|
return (err);
|
||
|
}
|
||
|
|
||
|
static int
|
||
|
uhid_snes_open(struct usb_fifo *fifo, int fflags)
|
||
|
{
|
||
|
struct uhid_snes_softc *sc = usb_fifo_softc(fifo);
|
||
|
int error;
|
||
|
|
||
|
if (sc->sc_fflags & fflags) {
|
||
|
uhid_snes_reset(sc);
|
||
|
return (EBUSY);
|
||
|
}
|
||
|
|
||
|
mtx_lock(&sc->sc_mutex);
|
||
|
usbd_xfer_set_stall(sc->sc_transfer[UHID_SNES_INTR_DT_RD]);
|
||
|
mtx_unlock(&sc->sc_mutex);
|
||
|
|
||
|
error = usb_fifo_alloc_buffer(fifo,
|
||
|
usbd_xfer_max_len(sc->sc_transfer[UHID_SNES_INTR_DT_RD]),
|
||
|
UHID_SNES_IFQ_MAX_LEN);
|
||
|
if (error)
|
||
|
return (ENOMEM);
|
||
|
|
||
|
sc->sc_fifo_open[USB_FIFO_RX] = fifo;
|
||
|
|
||
|
return (0);
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
uhid_snes_reset(struct uhid_snes_softc *sc)
|
||
|
{
|
||
|
struct usb_device_request req;
|
||
|
int error;
|
||
|
|
||
|
req.bRequest = UREQ_SOFT_RESET;
|
||
|
USETW(req.wValue, 0);
|
||
|
USETW(req.wIndex, sc->sc_iface_num);
|
||
|
USETW(req.wLength, 0);
|
||
|
|
||
|
mtx_lock(&sc->sc_mutex);
|
||
|
|
||
|
error = usbd_do_request_flags(sc->sc_usb_device, &sc->sc_mutex,
|
||
|
&req, NULL, 0, NULL, 2 * USB_MS_HZ);
|
||
|
|
||
|
if (error) {
|
||
|
usbd_do_request_flags(sc->sc_usb_device, &sc->sc_mutex,
|
||
|
&req, NULL, 0, NULL, 2 * USB_MS_HZ);
|
||
|
}
|
||
|
|
||
|
mtx_unlock(&sc->sc_mutex);
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
uhid_snes_close(struct usb_fifo *fifo, int fflags)
|
||
|
{
|
||
|
struct uhid_snes_softc *sc = usb_fifo_softc(fifo);
|
||
|
|
||
|
sc->sc_fflags &= ~(fflags & FREAD);
|
||
|
usb_fifo_free_buffer(fifo);
|
||
|
}
|
||
|
|
||
|
static int
|
||
|
uhid_snes_ioctl(struct usb_fifo *fifo, u_long cmd, void *data, int fflags)
|
||
|
{
|
||
|
struct uhid_snes_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 = data;
|
||
|
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; /*desciptor 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 *)data) {
|
||
|
/* 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_mutex);
|
||
|
sc->sc_fflags |= UHID_FLAG_IMMED;
|
||
|
mtx_unlock(&sc->sc_mutex);
|
||
|
} else {
|
||
|
mtx_lock(&sc->sc_mutex);
|
||
|
sc->sc_fflags &= ~UHID_FLAG_IMMED;
|
||
|
mtx_unlock(&sc->sc_mutex);
|
||
|
}
|
||
|
break;
|
||
|
|
||
|
case USB_GET_REPORT:
|
||
|
if (!(fflags & FREAD)) {
|
||
|
error = EPERM;
|
||
|
break;
|
||
|
}
|
||
|
ugd = data;
|
||
|
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 = data;
|
||
|
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:
|
||
|
/* XXX: we only support reportid 0? */
|
||
|
*(int *)data = 0;
|
||
|
break;
|
||
|
|
||
|
default:
|
||
|
error = EINVAL;
|
||
|
break;
|
||
|
}
|
||
|
return (error);
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
uhid_snes_watchdog(void *arg)
|
||
|
{
|
||
|
struct uhid_snes_softc *sc = arg;
|
||
|
|
||
|
mtx_assert(&sc->sc_mutex, MA_OWNED);
|
||
|
|
||
|
if (sc->sc_fflags == 0)
|
||
|
usbd_transfer_start(sc->sc_transfer[UHID_SNES_STATUS_DT_RD]);
|
||
|
|
||
|
usb_callout_reset(&sc->sc_watchdog, hz, &uhid_snes_watchdog, sc);
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
uhid_snes_start_read(struct usb_fifo *fifo)
|
||
|
{
|
||
|
struct uhid_snes_softc *sc = usb_fifo_softc(fifo);
|
||
|
|
||
|
usbd_transfer_start(sc->sc_transfer[UHID_SNES_INTR_DT_RD]);
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
uhid_snes_stop_read(struct usb_fifo *fifo)
|
||
|
{
|
||
|
struct uhid_snes_softc *sc = usb_fifo_softc(fifo);
|
||
|
|
||
|
usbd_transfer_stop(sc->sc_transfer[UHID_SNES_INTR_DT_RD]);
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
uhid_snes_read_callback(struct usb_xfer *transfer, usb_error_t error)
|
||
|
{
|
||
|
struct uhid_snes_softc *sc = usbd_xfer_softc(transfer);
|
||
|
struct usb_fifo *fifo = sc->sc_fifo_open[USB_FIFO_RX];
|
||
|
struct usb_page_cache *pc;
|
||
|
int actual, max;
|
||
|
|
||
|
usbd_xfer_status(transfer, &actual, NULL, NULL, NULL);
|
||
|
if (fifo == NULL)
|
||
|
return;
|
||
|
|
||
|
switch (USB_GET_STATE(transfer)) {
|
||
|
case USB_ST_TRANSFERRED:
|
||
|
if (actual == 0) {
|
||
|
if (sc->sc_zero_length_packets == 4)
|
||
|
/* Throttle transfers. */
|
||
|
usbd_xfer_set_interval(transfer, 500);
|
||
|
else
|
||
|
sc->sc_zero_length_packets++;
|
||
|
|
||
|
} else {
|
||
|
/* disable throttling. */
|
||
|
usbd_xfer_set_interval(transfer, 0);
|
||
|
sc->sc_zero_length_packets = 0;
|
||
|
}
|
||
|
pc = usbd_xfer_get_frame(transfer, 0);
|
||
|
usb_fifo_put_data(fifo, pc, 0, actual, 1);
|
||
|
/* Fall through */
|
||
|
setup:
|
||
|
case USB_ST_SETUP:
|
||
|
if (usb_fifo_put_bytes_max(fifo) != 0) {
|
||
|
max = usbd_xfer_max_len(transfer);
|
||
|
usbd_xfer_set_frame_len(transfer, 0, max);
|
||
|
usbd_transfer_submit(transfer);
|
||
|
}
|
||
|
break;
|
||
|
|
||
|
default:
|
||
|
/*disable throttling. */
|
||
|
usbd_xfer_set_interval(transfer, 0);
|
||
|
sc->sc_zero_length_packets = 0;
|
||
|
|
||
|
if (error != USB_ERR_CANCELLED) {
|
||
|
/* Issue a clear-stall request. */
|
||
|
usbd_xfer_set_stall(transfer);
|
||
|
goto setup;
|
||
|
}
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
uhid_snes_status_callback(struct usb_xfer *transfer, usb_error_t error)
|
||
|
{
|
||
|
struct uhid_snes_softc *sc = usbd_xfer_softc(transfer);
|
||
|
struct usb_device_request req;
|
||
|
struct usb_page_cache *pc;
|
||
|
uint8_t current_status, new_status;
|
||
|
|
||
|
switch (USB_GET_STATE(transfer)) {
|
||
|
case USB_ST_SETUP:
|
||
|
req.bmRequestType = UT_READ_CLASS_INTERFACE;
|
||
|
req.bRequest = UREQ_GET_PORT_STATUS;
|
||
|
USETW(req.wValue, 0);
|
||
|
req.wIndex[0] = sc->sc_iface_num;
|
||
|
req.wIndex[1] = 0;
|
||
|
USETW(req.wLength, 1);
|
||
|
|
||
|
pc = usbd_xfer_get_frame(transfer, 0);
|
||
|
usbd_copy_in(pc, 0, &req, sizeof(req));
|
||
|
usbd_xfer_set_frame_len(transfer, 0, sizeof(req));
|
||
|
usbd_xfer_set_frame_len(transfer, 1, 1);
|
||
|
usbd_xfer_set_frames(transfer, 2);
|
||
|
usbd_transfer_submit(transfer);
|
||
|
break;
|
||
|
|
||
|
case USB_ST_TRANSFERRED:
|
||
|
pc = usbd_xfer_get_frame(transfer, 1);
|
||
|
usbd_copy_out(pc, 0, ¤t_status, 1);
|
||
|
new_status = current_status & ~sc->sc_previous_status;
|
||
|
sc->sc_previous_status = current_status;
|
||
|
break;
|
||
|
|
||
|
default:
|
||
|
break;
|
||
|
}
|
||
|
|
||
|
}
|
||
|
|
||
|
static int
|
||
|
uhid_snes_probe(device_t dev)
|
||
|
{
|
||
|
struct usb_attach_arg *uaa = device_get_ivars(dev);
|
||
|
|
||
|
if (uaa->usb_mode != USB_MODE_HOST)
|
||
|
return (ENXIO);
|
||
|
|
||
|
return (usbd_lookup_id_by_uaa(snes_devs, sizeof(snes_devs), uaa));
|
||
|
}
|
||
|
|
||
|
static int
|
||
|
uhid_snes_attach(device_t dev)
|
||
|
{
|
||
|
struct usb_attach_arg *uaa = device_get_ivars(dev);
|
||
|
struct uhid_snes_softc *sc = device_get_softc(dev);
|
||
|
struct usb_interface_descriptor *idesc;
|
||
|
struct usb_config_descriptor *cdesc;
|
||
|
uint8_t alt_index, iface_index = uaa->info.bIfaceIndex;
|
||
|
int error,unit = device_get_unit(dev);
|
||
|
|
||
|
sc->sc_dev = dev;
|
||
|
sc->sc_usb_device = uaa->device;
|
||
|
device_set_usb_desc(dev);
|
||
|
mtx_init(&sc->sc_mutex, "uhid_snes", NULL, MTX_DEF | MTX_RECURSE);
|
||
|
usb_callout_init_mtx(&sc->sc_watchdog, &sc->sc_mutex, 0);
|
||
|
|
||
|
idesc = usbd_get_interface_descriptor(uaa->iface);
|
||
|
alt_index = -1;
|
||
|
for(;;) {
|
||
|
if (idesc == NULL)
|
||
|
break;
|
||
|
|
||
|
if ((idesc->bDescriptorType == UDESC_INTERFACE) &&
|
||
|
(idesc->bLength >= sizeof(*idesc))) {
|
||
|
if (idesc->bInterfaceNumber != uaa->info.bIfaceNum) {
|
||
|
break;
|
||
|
} else {
|
||
|
alt_index++;
|
||
|
if (idesc->bInterfaceClass == UICLASS_HID)
|
||
|
goto found;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
cdesc = usbd_get_config_descriptor(uaa->device);
|
||
|
idesc = (void *)usb_desc_foreach(cdesc, (void *)idesc);
|
||
|
goto found;
|
||
|
}
|
||
|
goto detach;
|
||
|
|
||
|
found:
|
||
|
if (alt_index) {
|
||
|
error = usbd_set_alt_interface_index(uaa->device, iface_index, alt_index);
|
||
|
if (error)
|
||
|
goto detach;
|
||
|
}
|
||
|
|
||
|
sc->sc_iface_num = idesc->bInterfaceNumber;
|
||
|
|
||
|
error = usbd_transfer_setup(uaa->device, &iface_index,
|
||
|
sc->sc_transfer, uhid_snes_config, UHID_SNES_N_TRANSFER, sc,
|
||
|
&sc->sc_mutex);
|
||
|
|
||
|
if (error)
|
||
|
goto detach;
|
||
|
|
||
|
error = usb_fifo_attach(uaa->device, sc, &sc->sc_mutex,
|
||
|
&uhid_snes_fifo_methods, &sc->sc_fifo, unit, -1,
|
||
|
iface_index, UID_ROOT, GID_OPERATOR, 0644);
|
||
|
sc->sc_repdesc_size = sizeof(uhid_snes_report_descr);
|
||
|
sc->sc_repdesc_ptr = __DECONST(void*, &uhid_snes_report_descr);
|
||
|
|
||
|
|
||
|
if (error)
|
||
|
goto detach;
|
||
|
|
||
|
mtx_lock(&sc->sc_mutex);
|
||
|
uhid_snes_watchdog(sc);
|
||
|
mtx_unlock(&sc->sc_mutex);
|
||
|
return (0);
|
||
|
|
||
|
detach:
|
||
|
uhid_snes_detach(dev);
|
||
|
return (ENOMEM);
|
||
|
}
|
||
|
|
||
|
static int
|
||
|
uhid_snes_detach(device_t dev)
|
||
|
{
|
||
|
struct uhid_snes_softc *sc = device_get_softc(dev);
|
||
|
|
||
|
usb_fifo_detach(&sc->sc_fifo);
|
||
|
usb_fifo_detach(&sc->sc_fifo_no_reset);
|
||
|
|
||
|
mtx_lock(&sc->sc_mutex);
|
||
|
usb_callout_stop(&sc->sc_watchdog);
|
||
|
mtx_unlock(&sc->sc_mutex);
|
||
|
|
||
|
usbd_transfer_unsetup(sc->sc_transfer, UHID_SNES_N_TRANSFER);
|
||
|
usb_callout_drain(&sc->sc_watchdog);
|
||
|
mtx_destroy(&sc->sc_mutex);
|
||
|
|
||
|
return (0);
|
||
|
}
|
||
|
|
||
|
static device_method_t uhid_snes_methods[] = {
|
||
|
DEVMETHOD(device_probe, uhid_snes_probe),
|
||
|
DEVMETHOD(device_attach, uhid_snes_attach),
|
||
|
DEVMETHOD(device_detach, uhid_snes_detach),
|
||
|
DEVMETHOD_END
|
||
|
};
|
||
|
|
||
|
static driver_t uhid_snes_driver = {
|
||
|
"uhid_snes",
|
||
|
uhid_snes_methods,
|
||
|
sizeof(struct uhid_snes_softc)
|
||
|
};
|
||
|
|
||
|
static devclass_t uhid_snes_devclass;
|
||
|
|
||
|
DRIVER_MODULE(uhid_snes, uhub, uhid_snes_driver, uhid_snes_devclass, NULL, 0);
|
||
|
MODULE_DEPEND(uhid_snes, usb, 1, 1, 1);
|
||
|
USB_PNP_HOST_INFO(snes_devs);
|