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NetBSD/sys/dev/usb/umidi.c

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/* $NetBSD: umidi.c,v 1.21 2004/04/23 17:25:25 itojun Exp $ */
/*
* Copyright (c) 2001 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Takuya SHIOZAKI (tshiozak@NetBSD.org).
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: umidi.c,v 1.21 2004/04/23 17:25:25 itojun Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/device.h>
#include <sys/ioctl.h>
#include <sys/conf.h>
#include <sys/file.h>
#include <sys/select.h>
#include <sys/proc.h>
#include <sys/vnode.h>
#include <sys/poll.h>
#include <sys/lock.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>
#include <dev/usb/usbdevs.h>
#include <dev/usb/uaudioreg.h>
#include <dev/usb/umidireg.h>
#include <dev/usb/umidivar.h>
#include <dev/usb/umidi_quirks.h>
#include <dev/midi_if.h>
#ifdef UMIDI_DEBUG
#define DPRINTF(x) if (umididebug) printf x
#define DPRINTFN(n,x) if (umididebug >= (n)) printf x
int umididebug = 0;
#else
#define DPRINTF(x)
#define DPRINTFN(n,x)
#endif
static int umidi_open(void *, int,
void (*)(void *, int), void (*)(void *), void *);
static void umidi_close(void *);
static int umidi_output(void *, int);
static void umidi_getinfo(void *, struct midi_info *);
static usbd_status alloc_pipe(struct umidi_endpoint *);
static void free_pipe(struct umidi_endpoint *);
static usbd_status alloc_all_endpoints(struct umidi_softc *);
static void free_all_endpoints(struct umidi_softc *);
static usbd_status alloc_all_jacks(struct umidi_softc *);
static void free_all_jacks(struct umidi_softc *);
static usbd_status bind_jacks_to_mididev(struct umidi_softc *,
struct umidi_jack *,
struct umidi_jack *,
struct umidi_mididev *);
static void unbind_jacks_from_mididev(struct umidi_mididev *);
static void unbind_all_jacks(struct umidi_softc *);
static usbd_status assign_all_jacks_automatically(struct umidi_softc *);
static usbd_status open_out_jack(struct umidi_jack *, void *,
void (*)(void *));
static usbd_status open_in_jack(struct umidi_jack *, void *,
void (*)(void *, int));
static void close_out_jack(struct umidi_jack *);
static void close_in_jack(struct umidi_jack *);
static usbd_status attach_mididev(struct umidi_softc *,
struct umidi_mididev *);
static usbd_status detach_mididev(struct umidi_mididev *, int);
static usbd_status deactivate_mididev(struct umidi_mididev *);
static usbd_status alloc_all_mididevs(struct umidi_softc *, int);
static void free_all_mididevs(struct umidi_softc *);
static usbd_status attach_all_mididevs(struct umidi_softc *);
static usbd_status detach_all_mididevs(struct umidi_softc *, int);
static usbd_status deactivate_all_mididevs(struct umidi_softc *);
#ifdef UMIDI_DEBUG
static void dump_sc(struct umidi_softc *);
static void dump_ep(struct umidi_endpoint *);
static void dump_jack(struct umidi_jack *);
#endif
static void init_packet(struct umidi_packet *);
static usbd_status start_input_transfer(struct umidi_endpoint *);
static usbd_status start_output_transfer(struct umidi_endpoint *);
static int out_jack_output(struct umidi_jack *, int);
static void in_intr(usbd_xfer_handle, usbd_private_handle, usbd_status);
static void out_intr(usbd_xfer_handle, usbd_private_handle, usbd_status);
static void out_build_packet(int, struct umidi_packet *, uByte);
struct midi_hw_if umidi_hw_if = {
umidi_open,
umidi_close,
umidi_output,
umidi_getinfo,
0, /* ioctl */
};
USB_DECLARE_DRIVER(umidi);
USB_MATCH(umidi)
{
USB_MATCH_START(umidi, uaa);
usb_interface_descriptor_t *id;
DPRINTFN(1,("umidi_match\n"));
if (uaa->iface == NULL)
return UMATCH_NONE;
if (umidi_search_quirk(uaa->vendor, uaa->product, uaa->ifaceno))
return UMATCH_IFACECLASS_IFACESUBCLASS;
id = usbd_get_interface_descriptor(uaa->iface);
if (id!=NULL &&
id->bInterfaceClass==UICLASS_AUDIO &&
id->bInterfaceSubClass==UISUBCLASS_MIDISTREAM)
return UMATCH_IFACECLASS_IFACESUBCLASS;
return UMATCH_NONE;
}
USB_ATTACH(umidi)
{
usbd_status err;
USB_ATTACH_START(umidi, sc, uaa);
char devinfo[1024];
DPRINTFN(1,("umidi_attach\n"));
usbd_devinfo(uaa->device, 0, devinfo, sizeof(devinfo));
printf("\n%s: %s\n", USBDEVNAME(sc->sc_dev), devinfo);
sc->sc_iface = uaa->iface;
sc->sc_udev = uaa->device;
sc->sc_quirk =
umidi_search_quirk(uaa->vendor, uaa->product, uaa->ifaceno);
printf("%s: ", USBDEVNAME(sc->sc_dev));
umidi_print_quirk(sc->sc_quirk);
err = alloc_all_endpoints(sc);
if (err!=USBD_NORMAL_COMPLETION) {
printf("%s: alloc_all_endpoints failed. (err=%d)\n",
USBDEVNAME(sc->sc_dev), err);
goto error;
}
err = alloc_all_jacks(sc);
if (err!=USBD_NORMAL_COMPLETION) {
free_all_endpoints(sc);
printf("%s: alloc_all_jacks failed. (err=%d)\n",
USBDEVNAME(sc->sc_dev), err);
goto error;
}
printf("%s: out=%d, in=%d\n",
USBDEVNAME(sc->sc_dev),
sc->sc_out_num_jacks, sc->sc_in_num_jacks);
err = assign_all_jacks_automatically(sc);
if (err!=USBD_NORMAL_COMPLETION) {
unbind_all_jacks(sc);
free_all_jacks(sc);
free_all_endpoints(sc);
printf("%s: assign_all_jacks_automatically failed. (err=%d)\n",
USBDEVNAME(sc->sc_dev), err);
goto error;
}
err = attach_all_mididevs(sc);
if (err!=USBD_NORMAL_COMPLETION) {
free_all_jacks(sc);
free_all_endpoints(sc);
printf("%s: attach_all_mididevs failed. (err=%d)\n",
USBDEVNAME(sc->sc_dev), err);
}
#ifdef UMIDI_DEBUG
dump_sc(sc);
#endif
usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH,
sc->sc_udev, USBDEV(sc->sc_dev));
USB_ATTACH_SUCCESS_RETURN;
error:
printf("%s: disabled.\n", USBDEVNAME(sc->sc_dev));
sc->sc_dying = 1;
USB_ATTACH_ERROR_RETURN;
}
int
umidi_activate(device_ptr_t self, enum devact act)
{
struct umidi_softc *sc = (struct umidi_softc *)self;
switch (act) {
case DVACT_ACTIVATE:
DPRINTFN(1,("umidi_activate (activate)\n"));
return EOPNOTSUPP;
break;
case DVACT_DEACTIVATE:
DPRINTFN(1,("umidi_activate (deactivate)\n"));
sc->sc_dying = 1;
deactivate_all_mididevs(sc);
break;
}
return 0;
}
USB_DETACH(umidi)
{
USB_DETACH_START(umidi, sc);
DPRINTFN(1,("umidi_detach\n"));
sc->sc_dying = 1;
detach_all_mididevs(sc, flags);
free_all_mididevs(sc);
free_all_jacks(sc);
free_all_endpoints(sc);
usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
USBDEV(sc->sc_dev));
return 0;
}
/*
* midi_if stuffs
*/
int
umidi_open(void *addr,
int flags,
void (*iintr)(void *, int),
void (*ointr)(void *),
void *arg)
{
struct umidi_mididev *mididev = addr;
struct umidi_softc *sc = mididev->sc;
DPRINTF(("umidi_open: sc=%p\n", sc));
if (!sc)
return ENXIO;
if (mididev->opened)
return EBUSY;
if (sc->sc_dying)
return EIO;
mididev->opened = 1;
mididev->flags = flags;
if ((mididev->flags & FWRITE) && mididev->out_jack)
open_out_jack(mididev->out_jack, arg, ointr);
if ((mididev->flags & FREAD) && mididev->in_jack) {
open_in_jack(mididev->in_jack, arg, iintr);
}
return 0;
}
void
umidi_close(void *addr)
{
int s;
struct umidi_mididev *mididev = addr;
s = splusb();
if ((mididev->flags & FWRITE) && mididev->out_jack)
close_out_jack(mididev->out_jack);
if ((mididev->flags & FREAD) && mididev->in_jack)
close_in_jack(mididev->in_jack);
mididev->opened = 0;
splx(s);
}
int
umidi_output(void *addr, int d)
{
struct umidi_mididev *mididev = addr;
if (!mididev->out_jack || !mididev->opened)
return EIO;
return out_jack_output(mididev->out_jack, d);
}
void
umidi_getinfo(void *addr, struct midi_info *mi)
{
struct umidi_mididev *mididev = addr;
/* struct umidi_softc *sc = mididev->sc; */
mi->name = "USB MIDI I/F"; /* XXX: model name */
mi->props = MIDI_PROP_OUT_INTR;
if (mididev->in_jack)
mi->props |= MIDI_PROP_CAN_INPUT;
}
/*
* each endpoint stuffs
*/
/* alloc/free pipe */
static usbd_status
alloc_pipe(struct umidi_endpoint *ep)
{
struct umidi_softc *sc = ep->sc;
usbd_status err;
DPRINTF(("%s: alloc_pipe %p\n", USBDEVNAME(sc->sc_dev), ep));
LIST_INIT(&ep->queue_head);
ep->xfer = usbd_alloc_xfer(sc->sc_udev);
if (ep->xfer == NULL) {
err = USBD_NOMEM;
goto quit;
}
ep->buffer = usbd_alloc_buffer(ep->xfer, UMIDI_PACKET_SIZE);
if (ep->buffer == NULL) {
usbd_free_xfer(ep->xfer);
err = USBD_NOMEM;
goto quit;
}
err = usbd_open_pipe(sc->sc_iface, ep->addr, 0, &ep->pipe);
if (err)
usbd_free_xfer(ep->xfer);
quit:
return err;
}
static void
free_pipe(struct umidi_endpoint *ep)
{
DPRINTF(("%s: free_pipe %p\n", USBDEVNAME(ep->sc->sc_dev), ep));
usbd_abort_pipe(ep->pipe);
usbd_close_pipe(ep->pipe);
usbd_free_xfer(ep->xfer);
}
/* alloc/free the array of endpoint structures */
static usbd_status alloc_all_endpoints_fixed_ep(struct umidi_softc *);
static usbd_status alloc_all_endpoints_yamaha(struct umidi_softc *);
static usbd_status alloc_all_endpoints_genuine(struct umidi_softc *);
static usbd_status
alloc_all_endpoints(struct umidi_softc *sc)
{
usbd_status err;
struct umidi_endpoint *ep;
int i;
if (UMQ_ISTYPE(sc, UMQ_TYPE_FIXED_EP)) {
err = alloc_all_endpoints_fixed_ep(sc);
} else if (UMQ_ISTYPE(sc, UMQ_TYPE_YAMAHA)) {
err = alloc_all_endpoints_yamaha(sc);
} else {
err = alloc_all_endpoints_genuine(sc);
}
if (err!=USBD_NORMAL_COMPLETION)
return err;
ep = sc->sc_endpoints;
for (i=sc->sc_out_num_endpoints+sc->sc_in_num_endpoints; i>0; i--) {
err = alloc_pipe(ep++);
if (err!=USBD_NORMAL_COMPLETION) {
for (; ep!=sc->sc_endpoints; ep--)
free_pipe(ep-1);
free(sc->sc_endpoints, M_USBDEV);
sc->sc_endpoints = sc->sc_out_ep = sc->sc_in_ep = NULL;
break;
}
}
return err;
}
static void
free_all_endpoints(struct umidi_softc *sc)
{
int i;
for (i=0; i<sc->sc_in_num_endpoints+sc->sc_out_num_endpoints; i++)
free_pipe(&sc->sc_endpoints[i]);
if (sc->sc_endpoints != NULL)
free(sc->sc_endpoints, M_USBDEV);
sc->sc_endpoints = sc->sc_out_ep = sc->sc_in_ep = NULL;
}
static usbd_status
alloc_all_endpoints_fixed_ep(struct umidi_softc *sc)
{
usbd_status err;
struct umq_fixed_ep_desc *fp;
struct umidi_endpoint *ep;
usb_endpoint_descriptor_t *epd;
int i;
fp = umidi_get_quirk_data_from_type(sc->sc_quirk,
UMQ_TYPE_FIXED_EP);
sc->sc_out_num_jacks = 0;
sc->sc_in_num_jacks = 0;
sc->sc_out_num_endpoints = fp->num_out_ep;
sc->sc_in_num_endpoints = fp->num_in_ep;
sc->sc_endpoints = malloc(sizeof(*sc->sc_out_ep)*
(sc->sc_out_num_endpoints+
sc->sc_in_num_endpoints),
M_USBDEV, M_WAITOK);
if (!sc->sc_endpoints) {
return USBD_NOMEM;
}
sc->sc_out_ep = sc->sc_out_num_endpoints ? sc->sc_endpoints : NULL;
sc->sc_in_ep =
sc->sc_in_num_endpoints ?
sc->sc_endpoints+sc->sc_out_num_endpoints : NULL;
ep = &sc->sc_out_ep[0];
for (i=0; i<sc->sc_out_num_endpoints; i++) {
epd = usbd_interface2endpoint_descriptor(
sc->sc_iface,
fp->out_ep[i].ep);
if (!epd) {
printf("%s: cannot get endpoint descriptor(out:%d)\n",
USBDEVNAME(sc->sc_dev), fp->out_ep[i].ep);
err = USBD_INVAL;
goto error;
}
if (UE_GET_XFERTYPE(epd->bmAttributes)!=UE_BULK ||
UE_GET_DIR(epd->bEndpointAddress)!=UE_DIR_OUT) {
printf("%s: illegal endpoint(out:%d)\n",
USBDEVNAME(sc->sc_dev), fp->out_ep[i].ep);
err = USBD_INVAL;
goto error;
}
ep->sc = sc;
ep->addr = epd->bEndpointAddress;
ep->num_jacks = fp->out_ep[i].num_jacks;
sc->sc_out_num_jacks += fp->out_ep[i].num_jacks;
ep->num_open = 0;
memset(ep->jacks, 0, sizeof(ep->jacks));
LIST_INIT(&ep->queue_head);
ep++;
}
ep = &sc->sc_in_ep[0];
for (i=0; i<sc->sc_in_num_endpoints; i++) {
epd = usbd_interface2endpoint_descriptor(
sc->sc_iface,
fp->in_ep[i].ep);
if (!epd) {
printf("%s: cannot get endpoint descriptor(in:%d)\n",
USBDEVNAME(sc->sc_dev), fp->in_ep[i].ep);
err = USBD_INVAL;
goto error;
}
if (UE_GET_XFERTYPE(epd->bmAttributes)!=UE_BULK ||
UE_GET_DIR(epd->bEndpointAddress)!=UE_DIR_IN) {
printf("%s: illegal endpoint(in:%d)\n",
USBDEVNAME(sc->sc_dev), fp->in_ep[i].ep);
err = USBD_INVAL;
goto error;
}
ep->sc = sc;
ep->addr = epd->bEndpointAddress;
ep->num_jacks = fp->in_ep[i].num_jacks;
sc->sc_in_num_jacks += fp->in_ep[i].num_jacks;
ep->num_open = 0;
memset(ep->jacks, 0, sizeof(ep->jacks));
ep++;
}
return USBD_NORMAL_COMPLETION;
error:
free(sc->sc_endpoints, M_USBDEV);
sc->sc_endpoints = NULL;
return err;
}
static usbd_status
alloc_all_endpoints_yamaha(struct umidi_softc *sc)
{
/* This driver currently supports max 1in/1out bulk endpoints */
usb_descriptor_t *desc;
usb_endpoint_descriptor_t *epd;
int out_addr, in_addr, i;
int dir;
size_t remain, descsize;
sc->sc_out_num_jacks = sc->sc_in_num_jacks = 0;
out_addr = in_addr = 0;
/* detect endpoints */
desc = TO_D(usbd_get_interface_descriptor(sc->sc_iface));
for (i=(int)TO_IFD(desc)->bNumEndpoints-1; i>=0; i--) {
epd = usbd_interface2endpoint_descriptor(sc->sc_iface, i);
if (UE_GET_XFERTYPE(epd->bmAttributes) == UE_BULK) {
dir = UE_GET_DIR(epd->bEndpointAddress);
if (dir==UE_DIR_OUT && !out_addr)
out_addr = epd->bEndpointAddress;
else if (dir==UE_DIR_IN && !in_addr)
in_addr = epd->bEndpointAddress;
}
}
desc = NEXT_D(desc);
/* count jacks */
if (!(desc->bDescriptorType==UDESC_CS_INTERFACE &&
desc->bDescriptorSubtype==UMIDI_MS_HEADER))
return USBD_INVAL;
remain = (size_t)UGETW(TO_CSIFD(desc)->wTotalLength) -
(size_t)desc->bLength;
desc = NEXT_D(desc);
while (remain>=sizeof(usb_descriptor_t)) {
descsize = desc->bLength;
if (descsize>remain || descsize==0)
break;
if (desc->bDescriptorType==UDESC_CS_INTERFACE &&
remain>=UMIDI_JACK_DESCRIPTOR_SIZE) {
if (desc->bDescriptorSubtype==UMIDI_OUT_JACK)
sc->sc_out_num_jacks++;
else if (desc->bDescriptorSubtype==UMIDI_IN_JACK)
sc->sc_in_num_jacks++;
}
desc = NEXT_D(desc);
remain-=descsize;
}
/* validate some parameters */
if (sc->sc_out_num_jacks>UMIDI_MAX_EPJACKS)
sc->sc_out_num_jacks = UMIDI_MAX_EPJACKS;
if (sc->sc_in_num_jacks>UMIDI_MAX_EPJACKS)
sc->sc_in_num_jacks = UMIDI_MAX_EPJACKS;
if (sc->sc_out_num_jacks && out_addr) {
sc->sc_out_num_endpoints = 1;
} else {
sc->sc_out_num_endpoints = 0;
sc->sc_out_num_jacks = 0;
}
if (sc->sc_in_num_jacks && in_addr) {
sc->sc_in_num_endpoints = 1;
} else {
sc->sc_in_num_endpoints = 0;
sc->sc_in_num_jacks = 0;
}
sc->sc_endpoints = malloc(sizeof(struct umidi_endpoint)*
(sc->sc_out_num_endpoints+
sc->sc_in_num_endpoints),
M_USBDEV, M_WAITOK);
if (!sc->sc_endpoints)
return USBD_NOMEM;
if (sc->sc_out_num_endpoints) {
sc->sc_out_ep = sc->sc_endpoints;
sc->sc_out_ep->sc = sc;
sc->sc_out_ep->addr = out_addr;
sc->sc_out_ep->num_jacks = sc->sc_out_num_jacks;
sc->sc_out_ep->num_open = 0;
memset(sc->sc_out_ep->jacks, 0, sizeof(sc->sc_out_ep->jacks));
} else
sc->sc_out_ep = NULL;
if (sc->sc_in_num_endpoints) {
sc->sc_in_ep = sc->sc_endpoints+sc->sc_out_num_endpoints;
sc->sc_in_ep->sc = sc;
sc->sc_in_ep->addr = in_addr;
sc->sc_in_ep->num_jacks = sc->sc_in_num_jacks;
sc->sc_in_ep->num_open = 0;
memset(sc->sc_in_ep->jacks, 0, sizeof(sc->sc_in_ep->jacks));
} else
sc->sc_in_ep = NULL;
return USBD_NORMAL_COMPLETION;
}
static usbd_status
alloc_all_endpoints_genuine(struct umidi_softc *sc)
{
usb_interface_descriptor_t *interface_desc;
usb_config_descriptor_t *config_desc;
usb_descriptor_t *desc;
int num_ep;
size_t remain, descsize;
struct umidi_endpoint *p, *q, *lowest, *endep, tmpep;
int epaddr;
interface_desc = usbd_get_interface_descriptor(sc->sc_iface);
num_ep = interface_desc->bNumEndpoints;
sc->sc_endpoints = p = malloc(sizeof(struct umidi_endpoint) * num_ep,
M_USBDEV, M_WAITOK);
if (!p)
return USBD_NOMEM;
sc->sc_out_num_jacks = sc->sc_in_num_jacks = 0;
sc->sc_out_num_endpoints = sc->sc_in_num_endpoints = 0;
epaddr = -1;
/* get the list of endpoints for midi stream */
config_desc = usbd_get_config_descriptor(sc->sc_udev);
desc = (usb_descriptor_t *) config_desc;
remain = (size_t)UGETW(config_desc->wTotalLength);
while (remain>=sizeof(usb_descriptor_t)) {
descsize = desc->bLength;
if (descsize>remain || descsize==0)
break;
if (desc->bDescriptorType==UDESC_ENDPOINT &&
remain>=USB_ENDPOINT_DESCRIPTOR_SIZE &&
UE_GET_XFERTYPE(TO_EPD(desc)->bmAttributes) == UE_BULK) {
epaddr = TO_EPD(desc)->bEndpointAddress;
} else if (desc->bDescriptorType==UDESC_CS_ENDPOINT &&
remain>=UMIDI_CS_ENDPOINT_DESCRIPTOR_SIZE &&
epaddr!=-1) {
if (num_ep>0) {
num_ep--;
p->sc = sc;
p->addr = epaddr;
p->num_jacks = TO_CSEPD(desc)->bNumEmbMIDIJack;
if (UE_GET_DIR(epaddr)==UE_DIR_OUT) {
sc->sc_out_num_endpoints++;
sc->sc_out_num_jacks += p->num_jacks;
} else {
sc->sc_in_num_endpoints++;
sc->sc_in_num_jacks += p->num_jacks;
}
p++;
}
} else
epaddr = -1;
desc = NEXT_D(desc);
remain-=descsize;
}
/* sort endpoints */
num_ep = sc->sc_out_num_endpoints + sc->sc_in_num_endpoints;
p = sc->sc_endpoints;
endep = p + num_ep;
while (p<endep) {
lowest = p;
for (q=p+1; q<endep; q++) {
if ((UE_GET_DIR(lowest->addr)==UE_DIR_IN &&
UE_GET_DIR(q->addr)==UE_DIR_OUT) ||
((UE_GET_DIR(lowest->addr)==
UE_GET_DIR(q->addr)) &&
(UE_GET_ADDR(lowest->addr)>
UE_GET_ADDR(q->addr))))
lowest = q;
}
if (lowest != p) {
memcpy((void *)&tmpep, (void *)p, sizeof(tmpep));
memcpy((void *)p, (void *)lowest, sizeof(tmpep));
memcpy((void *)lowest, (void *)&tmpep, sizeof(tmpep));
}
p->num_open = 0;
p++;
}
sc->sc_out_ep = sc->sc_out_num_endpoints ? sc->sc_endpoints : NULL;
sc->sc_in_ep =
sc->sc_in_num_endpoints ?
sc->sc_endpoints+sc->sc_out_num_endpoints : NULL;
return USBD_NORMAL_COMPLETION;
}
/*
* jack stuffs
*/
static usbd_status
alloc_all_jacks(struct umidi_softc *sc)
{
int i, j;
struct umidi_endpoint *ep;
struct umidi_jack *jack, **rjack;
/* allocate/initialize structures */
sc->sc_jacks =
malloc(sizeof(*sc->sc_out_jacks)*(sc->sc_in_num_jacks+
sc->sc_out_num_jacks),
M_USBDEV, M_WAITOK);
if (!sc->sc_jacks)
return USBD_NOMEM;
sc->sc_out_jacks =
sc->sc_out_num_jacks ? sc->sc_jacks : NULL;
sc->sc_in_jacks =
sc->sc_in_num_jacks ? sc->sc_jacks+sc->sc_out_num_jacks : NULL;
jack = &sc->sc_out_jacks[0];
for (i=0; i<sc->sc_out_num_jacks; i++) {
jack->opened = 0;
jack->binded = 0;
jack->arg = NULL;
jack->u.out.intr = NULL;
jack->cable_number = i;
jack++;
}
jack = &sc->sc_in_jacks[0];
for (i=0; i<sc->sc_in_num_jacks; i++) {
jack->opened = 0;
jack->binded = 0;
jack->arg = NULL;
jack->u.in.intr = NULL;
jack->cable_number = i;
jack++;
}
/* assign each jacks to each endpoints */
jack = &sc->sc_out_jacks[0];
ep = &sc->sc_out_ep[0];
for (i=0; i<sc->sc_out_num_endpoints; i++) {
rjack = &ep->jacks[0];
for (j=0; j<ep->num_jacks; j++) {
*rjack = jack;
jack->endpoint = ep;
jack++;
rjack++;
}
ep++;
}
jack = &sc->sc_in_jacks[0];
ep = &sc->sc_in_ep[0];
for (i=0; i<sc->sc_in_num_endpoints; i++) {
rjack = &ep->jacks[0];
for (j=0; j<ep->num_jacks; j++) {
*rjack = jack;
jack->endpoint = ep;
jack++;
rjack++;
}
ep++;
}
return USBD_NORMAL_COMPLETION;
}
static void
free_all_jacks(struct umidi_softc *sc)
{
int s;
s = splaudio();
if (sc->sc_out_jacks) {
free(sc->sc_jacks, M_USBDEV);
sc->sc_jacks = sc->sc_in_jacks = sc->sc_out_jacks = NULL;
}
splx(s);
}
static usbd_status
bind_jacks_to_mididev(struct umidi_softc *sc,
struct umidi_jack *out_jack,
struct umidi_jack *in_jack,
struct umidi_mididev *mididev)
{
if ((out_jack && out_jack->binded) || (in_jack && in_jack->binded))
return USBD_IN_USE;
if (mididev->out_jack || mididev->in_jack)
return USBD_IN_USE;
if (out_jack)
out_jack->binded = 1;
if (in_jack)
in_jack->binded = 1;
mididev->in_jack = in_jack;
mididev->out_jack = out_jack;
return USBD_NORMAL_COMPLETION;
}
static void
unbind_jacks_from_mididev(struct umidi_mididev *mididev)
{
if ((mididev->flags & FWRITE) && mididev->out_jack)
close_out_jack(mididev->out_jack);
if ((mididev->flags & FREAD) && mididev->in_jack)
close_in_jack(mididev->in_jack);
if (mididev->out_jack)
mididev->out_jack->binded = 0;
if (mididev->in_jack)
mididev->in_jack->binded = 0;
mididev->out_jack = mididev->in_jack = NULL;
}
static void
unbind_all_jacks(struct umidi_softc *sc)
{
int i;
if (sc->sc_mididevs)
for (i=0; i<sc->sc_num_mididevs; i++) {
unbind_jacks_from_mididev(&sc->sc_mididevs[i]);
}
}
static usbd_status
assign_all_jacks_automatically(struct umidi_softc *sc)
{
usbd_status err;
int i;
struct umidi_jack *out, *in;
err =
alloc_all_mididevs(sc,
max(sc->sc_out_num_jacks, sc->sc_in_num_jacks));
if (err!=USBD_NORMAL_COMPLETION)
return err;
for (i=0; i<sc->sc_num_mididevs; i++) {
out = (i<sc->sc_out_num_jacks) ? &sc->sc_out_jacks[i]:NULL;
in = (i<sc->sc_in_num_jacks) ? &sc->sc_in_jacks[i]:NULL;
err = bind_jacks_to_mididev(sc, out, in, &sc->sc_mididevs[i]);
if (err!=USBD_NORMAL_COMPLETION) {
free_all_mididevs(sc);
return err;
}
}
return USBD_NORMAL_COMPLETION;
}
static usbd_status
open_out_jack(struct umidi_jack *jack, void *arg, void (*intr)(void *))
{
struct umidi_endpoint *ep = jack->endpoint;
if (jack->opened)
return USBD_IN_USE;
jack->arg = arg;
jack->u.out.intr = intr;
init_packet(&jack->packet);
jack->opened = 1;
ep->num_open++;
return USBD_NORMAL_COMPLETION;
}
static usbd_status
open_in_jack(struct umidi_jack *jack, void *arg, void (*intr)(void *, int))
{
usbd_status err = USBD_NORMAL_COMPLETION;
struct umidi_endpoint *ep = jack->endpoint;
if (jack->opened)
return USBD_IN_USE;
jack->arg = arg;
jack->u.in.intr = intr;
jack->opened = 1;
if (ep->num_open++==0 && UE_GET_DIR(ep->addr)==UE_DIR_IN) {
err = start_input_transfer(ep);
if (err != USBD_NORMAL_COMPLETION &&
err != USBD_IN_PROGRESS) {
ep->num_open--;
}
}
return err;
}
static void
close_out_jack(struct umidi_jack *jack)
{
struct umidi_jack *tail;
int s;
if (jack->opened) {
s = splusb();
LIST_FOREACH(tail,
&jack->endpoint->queue_head,
u.out.queue_entry)
if (tail == jack) {
LIST_REMOVE(jack, u.out.queue_entry);
break;
}
if (jack == jack->endpoint->queue_tail) {
/* find tail */
LIST_FOREACH(tail,
&jack->endpoint->queue_head,
u.out.queue_entry) {
if (!LIST_NEXT(tail, u.out.queue_entry)) {
jack->endpoint->queue_tail = tail;
}
}
}
splx(s);
jack->opened = 0;
jack->endpoint->num_open--;
}
}
static void
close_in_jack(struct umidi_jack *jack)
{
if (jack->opened) {
jack->opened = 0;
if (--jack->endpoint->num_open == 0) {
usbd_abort_pipe(jack->endpoint->pipe);
}
}
}
static usbd_status
attach_mididev(struct umidi_softc *sc, struct umidi_mididev *mididev)
{
if (mididev->sc)
return USBD_IN_USE;
mididev->sc = sc;
mididev->mdev = midi_attach_mi(&umidi_hw_if, mididev, &sc->sc_dev);
return USBD_NORMAL_COMPLETION;
}
static usbd_status
detach_mididev(struct umidi_mididev *mididev, int flags)
{
if (!mididev->sc)
return USBD_NO_ADDR;
if (mididev->opened) {
umidi_close(mididev);
}
unbind_jacks_from_mididev(mididev);
if (mididev->mdev)
config_detach(mididev->mdev, flags);
mididev->sc = NULL;
return USBD_NORMAL_COMPLETION;
}
static usbd_status
deactivate_mididev(struct umidi_mididev *mididev)
{
if (mididev->out_jack)
mididev->out_jack->binded = 0;
if (mididev->in_jack)
mididev->in_jack->binded = 0;
config_deactivate(mididev->mdev);
return USBD_NORMAL_COMPLETION;
}
static usbd_status
alloc_all_mididevs(struct umidi_softc *sc, int nmidi)
{
sc->sc_num_mididevs = nmidi;
sc->sc_mididevs = malloc(sizeof(*sc->sc_mididevs)*nmidi,
M_USBDEV, M_WAITOK|M_ZERO);
if (!sc->sc_mididevs)
return USBD_NOMEM;
return USBD_NORMAL_COMPLETION;
}
static void
free_all_mididevs(struct umidi_softc *sc)
{
sc->sc_num_mididevs = 0;
if (sc->sc_mididevs)
free(sc->sc_mididevs, M_USBDEV);
}
static usbd_status
attach_all_mididevs(struct umidi_softc *sc)
{
usbd_status err;
int i;
if (sc->sc_mididevs)
for (i=0; i<sc->sc_num_mididevs; i++) {
err = attach_mididev(sc, &sc->sc_mididevs[i]);
if (err!=USBD_NORMAL_COMPLETION)
return err;
}
return USBD_NORMAL_COMPLETION;
}
static usbd_status
detach_all_mididevs(struct umidi_softc *sc, int flags)
{
usbd_status err;
int i;
if (sc->sc_mididevs)
for (i=0; i<sc->sc_num_mididevs; i++) {
err = detach_mididev(&sc->sc_mididevs[i], flags);
if (err!=USBD_NORMAL_COMPLETION)
return err;
}
return USBD_NORMAL_COMPLETION;
}
static usbd_status
deactivate_all_mididevs(struct umidi_softc *sc)
{
usbd_status err;
int i;
if (sc->sc_mididevs)
for (i=0; i<sc->sc_num_mididevs; i++) {
err = deactivate_mididev(&sc->sc_mididevs[i]);
if (err!=USBD_NORMAL_COMPLETION)
return err;
}
return USBD_NORMAL_COMPLETION;
}
#ifdef UMIDI_DEBUG
static void
dump_sc(struct umidi_softc *sc)
{
int i;
DPRINTFN(10, ("%s: dump_sc\n", USBDEVNAME(sc->sc_dev)));
for (i=0; i<sc->sc_out_num_endpoints; i++) {
DPRINTFN(10, ("\tout_ep(%p):\n", &sc->sc_out_ep[i]));
dump_ep(&sc->sc_out_ep[i]);
}
for (i=0; i<sc->sc_in_num_endpoints; i++) {
DPRINTFN(10, ("\tin_ep(%p):\n", &sc->sc_in_ep[i]));
dump_ep(&sc->sc_in_ep[i]);
}
}
static void
dump_ep(struct umidi_endpoint *ep)
{
int i;
for (i=0; i<ep->num_jacks; i++) {
DPRINTFN(10, ("\t\tjack(%p):\n", ep->jacks[i]));
dump_jack(ep->jacks[i]);
}
}
static void
dump_jack(struct umidi_jack *jack)
{
DPRINTFN(10, ("\t\t\tep=%p\n",
jack->endpoint));
}
#endif /* UMIDI_DEBUG */
/*
* MUX MIDI PACKET
*/
static const int packet_length[16] = {
/*0*/ -1,
/*1*/ -1,
/*2*/ 2,
/*3*/ 3,
/*4*/ 3,
/*5*/ 1,
/*6*/ 2,
/*7*/ 3,
/*8*/ 3,
/*9*/ 3,
/*A*/ 3,
/*B*/ 3,
/*C*/ 2,
/*D*/ 2,
/*E*/ 3,
/*F*/ 1,
};
static const struct {
int cin;
packet_state_t next;
} packet_0xFX[16] = {
/*F0: SysEx */ { 0x04, PS_EXCL_1 },
/*F1: MTC */ { 0x02, PS_NORMAL_1OF2 },
/*F2: S.POS */ { 0x03, PS_NORMAL_1OF3 },
/*F3: S.SEL */ { 0x02, PS_NORMAL_1OF2 },
/*F4: UNDEF */ { 0x00, PS_INITIAL },
/*F5: UNDEF */ { 0x00, PS_INITIAL },
/*F6: Tune */ { 0x0F, PS_END },
/*F7: EofEx */ { 0x00, PS_INITIAL },
/*F8: Timing */ { 0x0F, PS_END },
/*F9: UNDEF */ { 0x00, PS_INITIAL },
/*FA: Start */ { 0x0F, PS_END },
/*FB: Cont */ { 0x0F, PS_END },
/*FC: Stop */ { 0x0F, PS_END },
/*FD: UNDEF */ { 0x00, PS_INITIAL },
/*FE: ActS */ { 0x0F, PS_END },
/*FF: Reset */ { 0x0F, PS_END },
};
#define GET_CN(p) (((unsigned char)(p)>>4)&0x0F)
#define GET_CIN(p) ((unsigned char)(p)&0x0F)
#define MIX_CN_CIN(cn, cin) \
((unsigned char)((((unsigned char)(cn)&0x0F)<<4)| \
((unsigned char)(cin)&0x0F)))
static void
init_packet(struct umidi_packet *packet)
{
memset(packet->buffer, 0, UMIDI_PACKET_SIZE);
packet->state = PS_INITIAL;
}
static usbd_status
start_input_transfer(struct umidi_endpoint *ep)
{
usbd_setup_xfer(ep->xfer, ep->pipe,
(usbd_private_handle)ep,
ep->buffer, UMIDI_PACKET_SIZE,
USBD_NO_COPY, USBD_NO_TIMEOUT, in_intr);
return usbd_transfer(ep->xfer);
}
static usbd_status
start_output_transfer(struct umidi_endpoint *ep)
{
usbd_setup_xfer(ep->xfer, ep->pipe,
(usbd_private_handle)ep,
ep->buffer, UMIDI_PACKET_SIZE,
USBD_NO_COPY, USBD_NO_TIMEOUT, out_intr);
return usbd_transfer(ep->xfer);
}
#ifdef UMIDI_DEBUG
#define DPR_PACKET(dir, sc, p) \
if ((unsigned char)(p)->buffer[1]!=0xFE) \
DPRINTFN(500, \
("%s: umidi packet(" #dir "): %02X %02X %02X %02X\n", \
USBDEVNAME(sc->sc_dev), \
(unsigned char)(p)->buffer[0], \
(unsigned char)(p)->buffer[1], \
(unsigned char)(p)->buffer[2], \
(unsigned char)(p)->buffer[3]));
#else
#define DPR_PACKET(dir, sc, p)
#endif
static int
out_jack_output(struct umidi_jack *out_jack, int d)
{
struct umidi_endpoint *ep = out_jack->endpoint;
struct umidi_softc *sc = ep->sc;
int error;
int s;
if (sc->sc_dying)
return EIO;
error = 0;
if (out_jack->opened) {
DPRINTFN(1000, ("umidi_output: ep=%p 0x%02x\n", ep, d));
out_build_packet(out_jack->cable_number, &out_jack->packet, d);
switch (out_jack->packet.state) {
case PS_EXCL_0:
case PS_END:
DPR_PACKET(out, sc, &out_jack->packet);
s = splusb();
if (LIST_EMPTY(&ep->queue_head)) {
memcpy(ep->buffer,
out_jack->packet.buffer,
UMIDI_PACKET_SIZE);
start_output_transfer(ep);
}
if (LIST_EMPTY(&ep->queue_head))
LIST_INSERT_HEAD(&ep->queue_head,
out_jack, u.out.queue_entry);
else
LIST_INSERT_AFTER(ep->queue_tail,
out_jack, u.out.queue_entry);
ep->queue_tail = out_jack;
splx(s);
break;
default:
error = EINPROGRESS;
}
} else
error = ENODEV;
return error;
}
static void
in_intr(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
{
int cn, len, i;
struct umidi_endpoint *ep = (struct umidi_endpoint *)priv;
struct umidi_jack *jack;
if (ep->sc->sc_dying || !ep->num_open)
return;
cn = GET_CN(ep->buffer[0]);
len = packet_length[GET_CIN(ep->buffer[0])];
jack = ep->jacks[cn];
if (cn>=ep->num_jacks || !jack) {
DPRINTF(("%s: stray umidi packet (in): %02X %02X %02X %02X\n",
USBDEVNAME(ep->sc->sc_dev),
(unsigned)ep->buffer[0],
(unsigned)ep->buffer[1],
(unsigned)ep->buffer[2],
(unsigned)ep->buffer[3]));
return;
}
if (!jack->binded || !jack->opened)
return;
DPR_PACKET(in, ep->sc, &jack->packet);
if (jack->u.in.intr) {
for (i=0; i<len; i++) {
(*jack->u.in.intr)(jack->arg, ep->buffer[i+1]);
}
}
(void)start_input_transfer(ep);
}
static void
out_intr(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
{
struct umidi_endpoint *ep = (struct umidi_endpoint *)priv;
struct umidi_softc *sc = ep->sc;
struct umidi_jack *jack;
if (sc->sc_dying || !ep->num_open)
return;
jack = LIST_FIRST(&ep->queue_head);
if (jack && jack->opened) {
LIST_REMOVE(jack, u.out.queue_entry);
if (!LIST_EMPTY(&ep->queue_head)) {
memcpy(ep->buffer,
LIST_FIRST(&ep->queue_head)->packet.buffer,
UMIDI_PACKET_SIZE);
(void)start_output_transfer(ep);
}
if (jack->u.out.intr) {
(*jack->u.out.intr)(jack->arg);
}
}
}
static void
out_build_packet(int cable_number, struct umidi_packet *packet, uByte in)
{
int cin;
uByte prev;
retry:
switch (packet->state) {
case PS_END:
case PS_INITIAL:
prev = packet->buffer[1];
memset(packet->buffer, 0, UMIDI_PACKET_SIZE);
if (in<0x80) {
if (prev>=0x80 && prev<0xf0) {
/* running status */
out_build_packet(cable_number, packet, prev);
goto retry;
}
/* ??? */
break;
}
if (in>=0xf0) {
cin=packet_0xFX[in&0x0F].cin;
packet->state=packet_0xFX[in&0x0F].next;
} else {
cin=(unsigned char)in>>4;
switch (packet_length[cin]) {
case 2:
packet->state = PS_NORMAL_1OF2;
break;
case 3:
packet->state = PS_NORMAL_1OF3;
break;
default:
/* ??? */
packet->state = PS_INITIAL;
}
}
packet->buffer[0] = MIX_CN_CIN(cable_number, cin);
packet->buffer[1] = in;
break;
case PS_NORMAL_1OF3:
if (in>=0x80) { /* ??? */ packet->state = PS_END; break; }
packet->buffer[2] = in;
packet->state = PS_NORMAL_2OF3;
break;
case PS_NORMAL_2OF3:
if (in>=0x80) { /* ??? */ packet->state = PS_END; break; }
packet->buffer[3] = in;
packet->state = PS_END;
break;
case PS_NORMAL_1OF2:
if (in>=0x80) { /* ??? */ packet->state = PS_END; break; }
packet->buffer[2] = in;
packet->state = PS_END;
break;
case PS_EXCL_0:
memset(packet->buffer, 0, UMIDI_PACKET_SIZE);
if (in==0xF7) {
packet->buffer[0] = MIX_CN_CIN(cable_number, 0x05);
packet->buffer[1] = 0xF7;
packet->state = PS_END;
break;
}
if (in>=0x80) { /* ??? */ packet->state = PS_END; break; }
packet->buffer[1] = in;
packet->state = PS_EXCL_1;
break;
case PS_EXCL_1:
if (in==0xF7) {
packet->buffer[0] = MIX_CN_CIN(cable_number, 0x06);
packet->buffer[2] = 0xF7;
packet->state = PS_END;
break;
}
if (in>=0x80) { /* ??? */ packet->state = PS_END; break; }
packet->buffer[2] = in;
packet->state = PS_EXCL_2;
break;
case PS_EXCL_2:
if (in==0xF7) {
packet->buffer[0] = MIX_CN_CIN(cable_number, 0x07);
packet->buffer[3] = 0xF7;
packet->state = PS_END;
break;
}
if (in>=0x80) { /* ??? */ packet->state = PS_END; break; }
packet->buffer[0] = MIX_CN_CIN(cable_number, 0x04);
packet->buffer[3] = in;
packet->state = PS_EXCL_0;
break;
default:
printf("umidi: ambiguous state.\n");
packet->state = PS_INITIAL;
goto retry;
}
}
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