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/* $NetBSD: umodem.c,v 1.45 2002/09/23 05:51:23 simonb Exp $ */
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: release/9.1.0/sys/dev/usb/serial/ufoma.c 235000 2012-05-04 15:05:30Z hselasky $");
#define UFOMA_HANDSFREE
/*-
* Copyright (c) 2005, Takanori Watanabe
* Copyright (c) 2003, M. Warner Losh <imp@FreeBSD.org>.
* 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.
*/
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Lennart Augustsson (lennart@augustsson.net) at
* Carlstedt Research & Technology.
*
* 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.
*/
/*
* Comm Class spec: http://www.usb.org/developers/devclass_docs/usbccs10.pdf
* http://www.usb.org/developers/devclass_docs/usbcdc11.pdf
*/
/*
* TODO:
* - Implement a Call Device for modems without multiplexed commands.
*/
/*
* NOTE: all function names beginning like "ufoma_cfg_" can only
* be called from within the config thread function !
*/
#include <sys/stdint.h>
#include <sys/stddef.h>
#include <sys/param.h>
#include <sys/queue.h>
#include <sys/types.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/module.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/condvar.h>
#include <sys/sysctl.h>
#include <sys/sx.h>
#include <sys/unistd.h>
#include <sys/callout.h>
#include <sys/malloc.h>
#include <sys/priv.h>
#include <sys/sbuf.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>
#include <dev/usb/usb_cdc.h>
#include "usbdevs.h"
#define USB_DEBUG_VAR usb_debug
#include <dev/usb/usb_debug.h>
#include <dev/usb/usb_process.h>
#include <dev/usb/serial/usb_serial.h>
typedef struct ufoma_mobile_acm_descriptor {
uint8_t bFunctionLength;
uint8_t bDescriptorType;
uint8_t bDescriptorSubtype;
uint8_t bType;
uint8_t bMode[1];
} __packed usb_mcpc_acm_descriptor;
#define UISUBCLASS_MCPC 0x88
#define UDESC_VS_INTERFACE 0x44
#define UDESCSUB_MCPC_ACM 0x11
#define UMCPC_ACM_TYPE_AB1 0x1
#define UMCPC_ACM_TYPE_AB2 0x2
#define UMCPC_ACM_TYPE_AB5 0x5
#define UMCPC_ACM_TYPE_AB6 0x6
#define UMCPC_ACM_MODE_DEACTIVATED 0x0
#define UMCPC_ACM_MODE_MODEM 0x1
#define UMCPC_ACM_MODE_ATCOMMAND 0x2
#define UMCPC_ACM_MODE_OBEX 0x60
#define UMCPC_ACM_MODE_VENDOR1 0xc0
#define UMCPC_ACM_MODE_VENDOR2 0xfe
#define UMCPC_ACM_MODE_UNLINKED 0xff
#define UMCPC_CM_MOBILE_ACM 0x0
#define UMCPC_ACTIVATE_MODE 0x60
#define UMCPC_GET_MODETABLE 0x61
#define UMCPC_SET_LINK 0x62
#define UMCPC_CLEAR_LINK 0x63
#define UMCPC_REQUEST_ACKNOWLEDGE 0x31
#define UFOMA_MAX_TIMEOUT 15 /* standard says 10 seconds */
#define UFOMA_CMD_BUF_SIZE 64 /* bytes */
#define UFOMA_BULK_BUF_SIZE 1024 /* bytes */
enum {
UFOMA_CTRL_ENDPT_INTR,
UFOMA_CTRL_ENDPT_READ,
UFOMA_CTRL_ENDPT_WRITE,
UFOMA_CTRL_ENDPT_MAX,
};
enum {
UFOMA_BULK_ENDPT_WRITE,
UFOMA_BULK_ENDPT_READ,
UFOMA_BULK_ENDPT_MAX,
};
struct ufoma_softc {
struct ucom_super_softc sc_super_ucom;
struct ucom_softc sc_ucom;
struct cv sc_cv;
struct mtx sc_mtx;
struct usb_xfer *sc_ctrl_xfer[UFOMA_CTRL_ENDPT_MAX];
struct usb_xfer *sc_bulk_xfer[UFOMA_BULK_ENDPT_MAX];
uint8_t *sc_modetable;
device_t sc_dev;
struct usb_device *sc_udev;
uint32_t sc_unit;
uint16_t sc_line;
uint8_t sc_num_msg;
uint8_t sc_nobulk;
uint8_t sc_ctrl_iface_no;
uint8_t sc_ctrl_iface_index;
uint8_t sc_data_iface_no;
uint8_t sc_data_iface_index;
uint8_t sc_cm_cap;
uint8_t sc_acm_cap;
uint8_t sc_lsr;
uint8_t sc_msr;
uint8_t sc_modetoactivate;
uint8_t sc_currentmode;
uint8_t sc_name[16];
};
/* prototypes */
static device_probe_t ufoma_probe;
static device_attach_t ufoma_attach;
static device_detach_t ufoma_detach;
static usb_callback_t ufoma_ctrl_read_callback;
static usb_callback_t ufoma_ctrl_write_callback;
static usb_callback_t ufoma_intr_callback;
static usb_callback_t ufoma_bulk_write_callback;
static usb_callback_t ufoma_bulk_read_callback;
static void *ufoma_get_intconf(struct usb_config_descriptor *,
struct usb_interface_descriptor *, uint8_t, uint8_t);
static void ufoma_cfg_link_state(struct ufoma_softc *);
static void ufoma_cfg_activate_state(struct ufoma_softc *, uint16_t);
static void ufoma_cfg_open(struct ucom_softc *);
static void ufoma_cfg_close(struct ucom_softc *);
static void ufoma_cfg_set_break(struct ucom_softc *, uint8_t);
static void ufoma_cfg_get_status(struct ucom_softc *, uint8_t *,
uint8_t *);
static void ufoma_cfg_set_dtr(struct ucom_softc *, uint8_t);
static void ufoma_cfg_set_rts(struct ucom_softc *, uint8_t);
static int ufoma_pre_param(struct ucom_softc *, struct termios *);
static void ufoma_cfg_param(struct ucom_softc *, struct termios *);
static int ufoma_modem_setup(device_t, struct ufoma_softc *,
struct usb_attach_arg *);
static void ufoma_start_read(struct ucom_softc *);
static void ufoma_stop_read(struct ucom_softc *);
static void ufoma_start_write(struct ucom_softc *);
static void ufoma_stop_write(struct ucom_softc *);
static void ufoma_poll(struct ucom_softc *ucom);
/*sysctl stuff*/
static int ufoma_sysctl_support(SYSCTL_HANDLER_ARGS);
static int ufoma_sysctl_current(SYSCTL_HANDLER_ARGS);
static int ufoma_sysctl_open(SYSCTL_HANDLER_ARGS);
static const struct usb_config
ufoma_ctrl_config[UFOMA_CTRL_ENDPT_MAX] = {
[UFOMA_CTRL_ENDPT_INTR] = {
.type = UE_INTERRUPT,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_IN,
.flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
.bufsize = sizeof(struct usb_cdc_notification),
.callback = &ufoma_intr_callback,
},
[UFOMA_CTRL_ENDPT_READ] = {
.type = UE_CONTROL,
.endpoint = 0x00, /* Control pipe */
.direction = UE_DIR_ANY,
.bufsize = (sizeof(struct usb_device_request) + UFOMA_CMD_BUF_SIZE),
.flags = {.short_xfer_ok = 1,},
.callback = &ufoma_ctrl_read_callback,
.timeout = 1000, /* 1 second */
},
[UFOMA_CTRL_ENDPT_WRITE] = {
.type = UE_CONTROL,
.endpoint = 0x00, /* Control pipe */
.direction = UE_DIR_ANY,
.bufsize = (sizeof(struct usb_device_request) + 1),
.callback = &ufoma_ctrl_write_callback,
.timeout = 1000, /* 1 second */
},
};
static const struct usb_config
ufoma_bulk_config[UFOMA_BULK_ENDPT_MAX] = {
[UFOMA_BULK_ENDPT_WRITE] = {
.type = UE_BULK,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_OUT,
.bufsize = UFOMA_BULK_BUF_SIZE,
.flags = {.pipe_bof = 1,.force_short_xfer = 1,},
.callback = &ufoma_bulk_write_callback,
},
[UFOMA_BULK_ENDPT_READ] = {
.type = UE_BULK,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_IN,
.bufsize = UFOMA_BULK_BUF_SIZE,
.flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
.callback = &ufoma_bulk_read_callback,
},
};
static const struct ucom_callback ufoma_callback = {
.ucom_cfg_get_status = &ufoma_cfg_get_status,
.ucom_cfg_set_dtr = &ufoma_cfg_set_dtr,
.ucom_cfg_set_rts = &ufoma_cfg_set_rts,
.ucom_cfg_set_break = &ufoma_cfg_set_break,
.ucom_cfg_param = &ufoma_cfg_param,
.ucom_cfg_open = &ufoma_cfg_open,
.ucom_cfg_close = &ufoma_cfg_close,
.ucom_pre_param = &ufoma_pre_param,
.ucom_start_read = &ufoma_start_read,
.ucom_stop_read = &ufoma_stop_read,
.ucom_start_write = &ufoma_start_write,
.ucom_stop_write = &ufoma_stop_write,
.ucom_poll = &ufoma_poll,
};
static device_method_t ufoma_methods[] = {
/* Device methods */
DEVMETHOD(device_probe, ufoma_probe),
DEVMETHOD(device_attach, ufoma_attach),
DEVMETHOD(device_detach, ufoma_detach),
{0, 0}
};
static devclass_t ufoma_devclass;
static driver_t ufoma_driver = {
.name = "ufoma",
.methods = ufoma_methods,
.size = sizeof(struct ufoma_softc),
};
DRIVER_MODULE(ufoma, uhub, ufoma_driver, ufoma_devclass, NULL, 0);
MODULE_DEPEND(ufoma, ucom, 1, 1, 1);
MODULE_DEPEND(ufoma, usb, 1, 1, 1);
MODULE_VERSION(ufoma, 1);
static const STRUCT_USB_HOST_ID ufoma_devs[] = {
{USB_IFACE_CLASS(UICLASS_CDC),
USB_IFACE_SUBCLASS(UISUBCLASS_MCPC),},
};
static int
ufoma_probe(device_t dev)
{
struct usb_attach_arg *uaa = device_get_ivars(dev);
struct usb_interface_descriptor *id;
struct usb_config_descriptor *cd;
usb_mcpc_acm_descriptor *mad;
int error;
if (uaa->usb_mode != USB_MODE_HOST)
return (ENXIO);
error = usbd_lookup_id_by_uaa(ufoma_devs, sizeof(ufoma_devs), uaa);
if (error)
return (error);
id = usbd_get_interface_descriptor(uaa->iface);
cd = usbd_get_config_descriptor(uaa->device);
if (id == NULL || cd == NULL)
return (ENXIO);
mad = ufoma_get_intconf(cd, id, UDESC_VS_INTERFACE, UDESCSUB_MCPC_ACM);
if (mad == NULL)
return (ENXIO);
#ifndef UFOMA_HANDSFREE
if ((mad->bType == UMCPC_ACM_TYPE_AB5) ||
(mad->bType == UMCPC_ACM_TYPE_AB6))
return (ENXIO);
#endif
return (BUS_PROBE_GENERIC);
}
static int
ufoma_attach(device_t dev)
{
struct usb_attach_arg *uaa = device_get_ivars(dev);
struct ufoma_softc *sc = device_get_softc(dev);
struct usb_config_descriptor *cd;
struct usb_interface_descriptor *id;
struct sysctl_ctx_list *sctx;
struct sysctl_oid *soid;
usb_mcpc_acm_descriptor *mad;
uint8_t elements;
int32_t error;
sc->sc_udev = uaa->device;
sc->sc_dev = dev;
sc->sc_unit = device_get_unit(dev);
mtx_init(&sc->sc_mtx, "ufoma", NULL, MTX_DEF);
cv_init(&sc->sc_cv, "CWAIT");
device_set_usb_desc(dev);
snprintf(sc->sc_name, sizeof(sc->sc_name),
"%s", device_get_nameunit(dev));
DPRINTF("\n");
/* setup control transfers */
cd = usbd_get_config_descriptor(uaa->device);
id = usbd_get_interface_descriptor(uaa->iface);
sc->sc_ctrl_iface_no = id->bInterfaceNumber;
sc->sc_ctrl_iface_index = uaa->info.bIfaceIndex;
error = usbd_transfer_setup(uaa->device,
&sc->sc_ctrl_iface_index, sc->sc_ctrl_xfer,
ufoma_ctrl_config, UFOMA_CTRL_ENDPT_MAX, sc, &sc->sc_mtx);
if (error) {
device_printf(dev, "allocating control USB "
"transfers failed\n");
goto detach;
}
mad = ufoma_get_intconf(cd, id, UDESC_VS_INTERFACE, UDESCSUB_MCPC_ACM);
if (mad == NULL) {
goto detach;
}
if (mad->bFunctionLength < sizeof(*mad)) {
device_printf(dev, "invalid MAD descriptor\n");
goto detach;
}
if ((mad->bType == UMCPC_ACM_TYPE_AB5) ||
(mad->bType == UMCPC_ACM_TYPE_AB6)) {
sc->sc_nobulk = 1;
} else {
sc->sc_nobulk = 0;
if (ufoma_modem_setup(dev, sc, uaa)) {
goto detach;
}
}
elements = (mad->bFunctionLength - sizeof(*mad) + 1);
/* initialize mode variables */
sc->sc_modetable = malloc(elements + 1, M_USBDEV, M_WAITOK);
if (sc->sc_modetable == NULL) {
goto detach;
}
sc->sc_modetable[0] = (elements + 1);
memcpy(&sc->sc_modetable[1], mad->bMode, elements);
sc->sc_currentmode = UMCPC_ACM_MODE_UNLINKED;
sc->sc_modetoactivate = mad->bMode[0];
/* clear stall at first run, if any */
mtx_lock(&sc->sc_mtx);
usbd_xfer_set_stall(sc->sc_bulk_xfer[UFOMA_BULK_ENDPT_WRITE]);
usbd_xfer_set_stall(sc->sc_bulk_xfer[UFOMA_BULK_ENDPT_READ]);
mtx_unlock(&sc->sc_mtx);
error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc,
&ufoma_callback, &sc->sc_mtx);
if (error) {
DPRINTF("ucom_attach failed\n");
goto detach;
}
ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev);
/*Sysctls*/
sctx = device_get_sysctl_ctx(dev);
soid = device_get_sysctl_tree(dev);
SYSCTL_ADD_PROC(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "supportmode",
CTLFLAG_RD|CTLTYPE_STRING, sc, 0, ufoma_sysctl_support,
"A", "Supporting port role");
SYSCTL_ADD_PROC(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "currentmode",
CTLFLAG_RD|CTLTYPE_STRING, sc, 0, ufoma_sysctl_current,
"A", "Current port role");
SYSCTL_ADD_PROC(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "openmode",
CTLFLAG_RW|CTLTYPE_STRING, sc, 0, ufoma_sysctl_open,
"A", "Mode to transit when port is opened");
SYSCTL_ADD_UINT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "comunit",
CTLFLAG_RD, &(sc->sc_super_ucom.sc_unit), 0,
"Unit number as USB serial");
return (0); /* success */
detach:
ufoma_detach(dev);
return (ENXIO); /* failure */
}
static int
ufoma_detach(device_t dev)
{
struct ufoma_softc *sc = device_get_softc(dev);
ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom);
usbd_transfer_unsetup(sc->sc_ctrl_xfer, UFOMA_CTRL_ENDPT_MAX);
usbd_transfer_unsetup(sc->sc_bulk_xfer, UFOMA_BULK_ENDPT_MAX);
if (sc->sc_modetable) {
free(sc->sc_modetable, M_USBDEV);
}
mtx_destroy(&sc->sc_mtx);
cv_destroy(&sc->sc_cv);
return (0);
}
static void *
ufoma_get_intconf(struct usb_config_descriptor *cd, struct usb_interface_descriptor *id,
uint8_t type, uint8_t subtype)
{
struct usb_descriptor *desc = (void *)id;
while ((desc = usb_desc_foreach(cd, desc))) {
if (desc->bDescriptorType == UDESC_INTERFACE) {
return (NULL);
}
if ((desc->bDescriptorType == type) &&
(desc->bDescriptorSubtype == subtype)) {
break;
}
}
return (desc);
}
static void
ufoma_cfg_link_state(struct ufoma_softc *sc)
{
struct usb_device_request req;
int32_t error;
req.bmRequestType = UT_WRITE_VENDOR_INTERFACE;
req.bRequest = UMCPC_SET_LINK;
USETW(req.wValue, UMCPC_CM_MOBILE_ACM);
USETW(req.wIndex, sc->sc_ctrl_iface_no);
USETW(req.wLength, sc->sc_modetable[0]);
ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
&req, sc->sc_modetable, 0, 1000);
error = cv_timedwait(&sc->sc_cv, &sc->sc_mtx, hz);
if (error) {
DPRINTF("NO response\n");
}
}
static void
ufoma_cfg_activate_state(struct ufoma_softc *sc, uint16_t state)
{
struct usb_device_request req;
int32_t error;
req.bmRequestType = UT_WRITE_VENDOR_INTERFACE;
req.bRequest = UMCPC_ACTIVATE_MODE;
USETW(req.wValue, state);
USETW(req.wIndex, sc->sc_ctrl_iface_no);
USETW(req.wLength, 0);
ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
&req, NULL, 0, 1000);
error = cv_timedwait(&sc->sc_cv, &sc->sc_mtx,
(UFOMA_MAX_TIMEOUT * hz));
if (error) {
DPRINTF("No response\n");
}
}
static void
ufoma_ctrl_read_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct ufoma_softc *sc = usbd_xfer_softc(xfer);
struct usb_device_request req;
struct usb_page_cache *pc0, *pc1;
int len, aframes, nframes;
usbd_xfer_status(xfer, NULL, NULL, &aframes, &nframes);
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
tr_transferred:
if (aframes != nframes)
goto tr_setup;
pc1 = usbd_xfer_get_frame(xfer, 1);
len = usbd_xfer_frame_len(xfer, 1);
if (len > 0)
ucom_put_data(&sc->sc_ucom, pc1, 0, len);
/* FALLTHROUGH */
case USB_ST_SETUP:
tr_setup:
if (sc->sc_num_msg) {
sc->sc_num_msg--;
req.bmRequestType = UT_READ_CLASS_INTERFACE;
req.bRequest = UCDC_GET_ENCAPSULATED_RESPONSE;
USETW(req.wIndex, sc->sc_ctrl_iface_no);
USETW(req.wValue, 0);
USETW(req.wLength, UFOMA_CMD_BUF_SIZE);
pc0 = usbd_xfer_get_frame(xfer, 0);
usbd_copy_in(pc0, 0, &req, sizeof(req));
usbd_xfer_set_frame_len(xfer, 0, sizeof(req));
usbd_xfer_set_frame_len(xfer, 1, UFOMA_CMD_BUF_SIZE);
usbd_xfer_set_frames(xfer, 2);
usbd_transfer_submit(xfer);
}
return;
default: /* Error */
DPRINTF("error = %s\n",
usbd_errstr(error));
if (error == USB_ERR_CANCELLED) {
return;
} else {
goto tr_setup;
}
goto tr_transferred;
}
}
static void
ufoma_ctrl_write_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct ufoma_softc *sc = usbd_xfer_softc(xfer);
struct usb_device_request req;
struct usb_page_cache *pc;
uint32_t actlen;
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
tr_transferred:
case USB_ST_SETUP:
tr_setup:
pc = usbd_xfer_get_frame(xfer, 1);
if (ucom_get_data(&sc->sc_ucom, pc, 0, 1, &actlen)) {
req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
req.bRequest = UCDC_SEND_ENCAPSULATED_COMMAND;
USETW(req.wIndex, sc->sc_ctrl_iface_no);
USETW(req.wValue, 0);
USETW(req.wLength, 1);
pc = usbd_xfer_get_frame(xfer, 0);
usbd_copy_in(pc, 0, &req, sizeof(req));
usbd_xfer_set_frame_len(xfer, 0, sizeof(req));
usbd_xfer_set_frame_len(xfer, 1, 1);
usbd_xfer_set_frames(xfer, 2);
usbd_transfer_submit(xfer);
}
return;
default: /* Error */
DPRINTF("error = %s\n", usbd_errstr(error));
if (error == USB_ERR_CANCELLED) {
return;
} else {
goto tr_setup;
}
goto tr_transferred;
}
}
static void
ufoma_intr_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct ufoma_softc *sc = usbd_xfer_softc(xfer);
struct usb_cdc_notification pkt;
struct usb_page_cache *pc;
uint16_t wLen;
uint16_t temp;
uint8_t mstatus;
int actlen;
usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
if (actlen < 8) {
DPRINTF("too short message\n");
goto tr_setup;
}
if (actlen > (int)sizeof(pkt)) {
DPRINTF("truncating message\n");
actlen = sizeof(pkt);
}
pc = usbd_xfer_get_frame(xfer, 0);
usbd_copy_out(pc, 0, &pkt, actlen);
actlen -= 8;
wLen = UGETW(pkt.wLength);
if (actlen > wLen) {
actlen = wLen;
}
if ((pkt.bmRequestType == UT_READ_VENDOR_INTERFACE) &&
(pkt.bNotification == UMCPC_REQUEST_ACKNOWLEDGE)) {
temp = UGETW(pkt.wValue);
sc->sc_currentmode = (temp >> 8);
if (!(temp & 0xff)) {
DPRINTF("Mode change failed!\n");
}
cv_signal(&sc->sc_cv);
}
if (pkt.bmRequestType != UCDC_NOTIFICATION) {
goto tr_setup;
}
switch (pkt.bNotification) {
case UCDC_N_RESPONSE_AVAILABLE:
if (!(sc->sc_nobulk)) {
DPRINTF("Wrong serial state!\n");
break;
}
if (sc->sc_num_msg != 0xFF) {
sc->sc_num_msg++;
}
usbd_transfer_start(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_READ]);
break;
case UCDC_N_SERIAL_STATE:
if (sc->sc_nobulk) {
DPRINTF("Wrong serial state!\n");
break;
}
/*
* Set the serial state in ucom driver based on
* the bits from the notify message
*/
if (actlen < 2) {
DPRINTF("invalid notification "
"length, %d bytes!\n", actlen);
break;
}
DPRINTF("notify bytes = 0x%02x, 0x%02x\n",
pkt.data[0], pkt.data[1]);
/* currently, lsr is always zero. */
sc->sc_lsr = 0;
sc->sc_msr = 0;
mstatus = pkt.data[0];
if (mstatus & UCDC_N_SERIAL_RI) {
sc->sc_msr |= SER_RI;
}
if (mstatus & UCDC_N_SERIAL_DSR) {
sc->sc_msr |= SER_DSR;
}
if (mstatus & UCDC_N_SERIAL_DCD) {
sc->sc_msr |= SER_DCD;
}
ucom_status_change(&sc->sc_ucom);
break;
default:
break;
}
case USB_ST_SETUP:
tr_setup:
usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
usbd_transfer_submit(xfer);
return;
default: /* Error */
if (error != USB_ERR_CANCELLED) {
/* try to clear stall first */
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
return;
}
}
static void
ufoma_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct ufoma_softc *sc = usbd_xfer_softc(xfer);
struct usb_page_cache *pc;
uint32_t actlen;
switch (USB_GET_STATE(xfer)) {
case USB_ST_SETUP:
case USB_ST_TRANSFERRED:
tr_setup:
pc = usbd_xfer_get_frame(xfer, 0);
if (ucom_get_data(&sc->sc_ucom, pc, 0,
UFOMA_BULK_BUF_SIZE, &actlen)) {
usbd_xfer_set_frame_len(xfer, 0, actlen);
usbd_transfer_submit(xfer);
}
return;
default: /* Error */
if (error != USB_ERR_CANCELLED) {
/* try to clear stall first */
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
return;
}
}
static void
ufoma_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct ufoma_softc *sc = usbd_xfer_softc(xfer);
struct usb_page_cache *pc;
int actlen;
usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
pc = usbd_xfer_get_frame(xfer, 0);
ucom_put_data(&sc->sc_ucom, pc, 0, actlen);
case USB_ST_SETUP:
tr_setup:
usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
usbd_transfer_submit(xfer);
return;
default: /* Error */
if (error != USB_ERR_CANCELLED) {
/* try to clear stall first */
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
return;
}
}
static void
ufoma_cfg_open(struct ucom_softc *ucom)
{
struct ufoma_softc *sc = ucom->sc_parent;
/* empty input queue */
if (sc->sc_num_msg != 0xFF) {
sc->sc_num_msg++;
}
if (sc->sc_currentmode == UMCPC_ACM_MODE_UNLINKED) {
ufoma_cfg_link_state(sc);
}
if (sc->sc_currentmode == UMCPC_ACM_MODE_DEACTIVATED) {
ufoma_cfg_activate_state(sc, sc->sc_modetoactivate);
}
}
static void
ufoma_cfg_close(struct ucom_softc *ucom)
{
struct ufoma_softc *sc = ucom->sc_parent;
ufoma_cfg_activate_state(sc, UMCPC_ACM_MODE_DEACTIVATED);
}
static void
ufoma_cfg_set_break(struct ucom_softc *ucom, uint8_t onoff)
{
struct ufoma_softc *sc = ucom->sc_parent;
struct usb_device_request req;
uint16_t wValue;
if (sc->sc_nobulk ||
(sc->sc_currentmode == UMCPC_ACM_MODE_OBEX)) {
return;
}
if (!(sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK)) {
return;
}
wValue = onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF;
req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
req.bRequest = UCDC_SEND_BREAK;
USETW(req.wValue, wValue);
req.wIndex[0] = sc->sc_ctrl_iface_no;
req.wIndex[1] = 0;
USETW(req.wLength, 0);
ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
&req, NULL, 0, 1000);
}
static void
ufoma_cfg_get_status(struct ucom_softc *ucom, uint8_t *lsr, uint8_t *msr)
{
struct ufoma_softc *sc = ucom->sc_parent;
*lsr = sc->sc_lsr;
*msr = sc->sc_msr;
}
static void
ufoma_cfg_set_line_state(struct ufoma_softc *sc)
{
struct usb_device_request req;
/* Don't send line state emulation request for OBEX port */
if (sc->sc_currentmode == UMCPC_ACM_MODE_OBEX) {
return;
}
req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
req.bRequest = UCDC_SET_CONTROL_LINE_STATE;
USETW(req.wValue, sc->sc_line);
req.wIndex[0] = sc->sc_ctrl_iface_no;
req.wIndex[1] = 0;
USETW(req.wLength, 0);
ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
&req, NULL, 0, 1000);
}
static void
ufoma_cfg_set_dtr(struct ucom_softc *ucom, uint8_t onoff)
{
struct ufoma_softc *sc = ucom->sc_parent;
if (sc->sc_nobulk) {
return;
}
if (onoff)
sc->sc_line |= UCDC_LINE_DTR;
else
sc->sc_line &= ~UCDC_LINE_DTR;
ufoma_cfg_set_line_state(sc);
}
static void
ufoma_cfg_set_rts(struct ucom_softc *ucom, uint8_t onoff)
{
struct ufoma_softc *sc = ucom->sc_parent;
if (sc->sc_nobulk) {
return;
}
if (onoff)
sc->sc_line |= UCDC_LINE_RTS;
else
sc->sc_line &= ~UCDC_LINE_RTS;
ufoma_cfg_set_line_state(sc);
}
static int
ufoma_pre_param(struct ucom_softc *ucom, struct termios *t)
{
return (0); /* we accept anything */
}
static void
ufoma_cfg_param(struct ucom_softc *ucom, struct termios *t)
{
struct ufoma_softc *sc = ucom->sc_parent;
struct usb_device_request req;
struct usb_cdc_line_state ls;
if (sc->sc_nobulk ||
(sc->sc_currentmode == UMCPC_ACM_MODE_OBEX)) {
return;
}
DPRINTF("\n");
memset(&ls, 0, sizeof(ls));
USETDW(ls.dwDTERate, t->c_ospeed);
if (t->c_cflag & CSTOPB) {
ls.bCharFormat = UCDC_STOP_BIT_2;
} else {
ls.bCharFormat = UCDC_STOP_BIT_1;
}
if (t->c_cflag & PARENB) {
if (t->c_cflag & PARODD) {
ls.bParityType = UCDC_PARITY_ODD;
} else {
ls.bParityType = UCDC_PARITY_EVEN;
}
} else {
ls.bParityType = UCDC_PARITY_NONE;
}
switch (t->c_cflag & CSIZE) {
case CS5:
ls.bDataBits = 5;
break;
case CS6:
ls.bDataBits = 6;
break;
case CS7:
ls.bDataBits = 7;
break;
case CS8:
ls.bDataBits = 8;
break;
}
req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
req.bRequest = UCDC_SET_LINE_CODING;
USETW(req.wValue, 0);
req.wIndex[0] = sc->sc_ctrl_iface_no;
req.wIndex[1] = 0;
USETW(req.wLength, UCDC_LINE_STATE_LENGTH);
ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
&req, &ls, 0, 1000);
}
static int
ufoma_modem_setup(device_t dev, struct ufoma_softc *sc,
struct usb_attach_arg *uaa)
{
struct usb_config_descriptor *cd;
struct usb_cdc_acm_descriptor *acm;
struct usb_cdc_cm_descriptor *cmd;
struct usb_interface_descriptor *id;
struct usb_interface *iface;
uint8_t i;
int32_t error;
cd = usbd_get_config_descriptor(uaa->device);
id = usbd_get_interface_descriptor(uaa->iface);
cmd = ufoma_get_intconf(cd, id, UDESC_CS_INTERFACE, UDESCSUB_CDC_CM);
if ((cmd == NULL) ||
(cmd->bLength < sizeof(*cmd))) {
return (EINVAL);
}
sc->sc_cm_cap = cmd->bmCapabilities;
sc->sc_data_iface_no = cmd->bDataInterface;
acm = ufoma_get_intconf(cd, id, UDESC_CS_INTERFACE, UDESCSUB_CDC_ACM);
if ((acm == NULL) ||
(acm->bLength < sizeof(*acm))) {
return (EINVAL);
}
sc->sc_acm_cap = acm->bmCapabilities;
device_printf(dev, "data interface %d, has %sCM over data, "
"has %sbreak\n",
sc->sc_data_iface_no,
sc->sc_cm_cap & USB_CDC_CM_OVER_DATA ? "" : "no ",
sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK ? "" : "no ");
/* get the data interface too */
for (i = 0;; i++) {
iface = usbd_get_iface(uaa->device, i);
if (iface) {
id = usbd_get_interface_descriptor(iface);
if (id && (id->bInterfaceNumber == sc->sc_data_iface_no)) {
sc->sc_data_iface_index = i;
usbd_set_parent_iface(uaa->device, i, uaa->info.bIfaceIndex);
break;
}
} else {
device_printf(dev, "no data interface\n");
return (EINVAL);
}
}
error = usbd_transfer_setup(uaa->device,
&sc->sc_data_iface_index, sc->sc_bulk_xfer,
ufoma_bulk_config, UFOMA_BULK_ENDPT_MAX, sc, &sc->sc_mtx);
if (error) {
device_printf(dev, "allocating BULK USB "
"transfers failed\n");
return (EINVAL);
}
return (0);
}
static void
ufoma_start_read(struct ucom_softc *ucom)
{
struct ufoma_softc *sc = ucom->sc_parent;
/* start interrupt transfer */
usbd_transfer_start(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_INTR]);
/* start data transfer */
if (sc->sc_nobulk) {
usbd_transfer_start(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_READ]);
} else {
usbd_transfer_start(sc->sc_bulk_xfer[UFOMA_BULK_ENDPT_READ]);
}
}
static void
ufoma_stop_read(struct ucom_softc *ucom)
{
struct ufoma_softc *sc = ucom->sc_parent;
/* stop interrupt transfer */
usbd_transfer_stop(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_INTR]);
/* stop data transfer */
if (sc->sc_nobulk) {
usbd_transfer_stop(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_READ]);
} else {
usbd_transfer_stop(sc->sc_bulk_xfer[UFOMA_BULK_ENDPT_READ]);
}
}
static void
ufoma_start_write(struct ucom_softc *ucom)
{
struct ufoma_softc *sc = ucom->sc_parent;
if (sc->sc_nobulk) {
usbd_transfer_start(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_WRITE]);
} else {
usbd_transfer_start(sc->sc_bulk_xfer[UFOMA_BULK_ENDPT_WRITE]);
}
}
static void
ufoma_stop_write(struct ucom_softc *ucom)
{
struct ufoma_softc *sc = ucom->sc_parent;
if (sc->sc_nobulk) {
usbd_transfer_stop(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_WRITE]);
} else {
usbd_transfer_stop(sc->sc_bulk_xfer[UFOMA_BULK_ENDPT_WRITE]);
}
}
static struct umcpc_modetostr_tab{
int mode;
char *str;
}umcpc_modetostr_tab[]={
{UMCPC_ACM_MODE_DEACTIVATED, "deactivated"},
{UMCPC_ACM_MODE_MODEM, "modem"},
{UMCPC_ACM_MODE_ATCOMMAND, "handsfree"},
{UMCPC_ACM_MODE_OBEX, "obex"},
{UMCPC_ACM_MODE_VENDOR1, "vendor1"},
{UMCPC_ACM_MODE_VENDOR2, "vendor2"},
{UMCPC_ACM_MODE_UNLINKED, "unlinked"},
{0, NULL}
};
static char *ufoma_mode_to_str(int mode)
{
int i;
for(i = 0 ;umcpc_modetostr_tab[i].str != NULL; i++){
if(umcpc_modetostr_tab[i].mode == mode){
return umcpc_modetostr_tab[i].str;
}
}
return NULL;
}
static int ufoma_str_to_mode(char *str)
{
int i;
for(i = 0 ;umcpc_modetostr_tab[i].str != NULL; i++){
if(strcmp(str, umcpc_modetostr_tab[i].str)==0){
return umcpc_modetostr_tab[i].mode;
}
}
return -1;
}
static int ufoma_sysctl_support(SYSCTL_HANDLER_ARGS)
{
struct ufoma_softc *sc = (struct ufoma_softc *)oidp->oid_arg1;
struct sbuf sb;
int i;
char *mode;
sbuf_new(&sb, NULL, 1, SBUF_AUTOEXTEND);
for(i = 1; i < sc->sc_modetable[0]; i++){
mode = ufoma_mode_to_str(sc->sc_modetable[i]);
if(mode !=NULL){
sbuf_cat(&sb, mode);
}else{
sbuf_printf(&sb, "(%02x)", sc->sc_modetable[i]);
}
if(i < (sc->sc_modetable[0]-1))
sbuf_cat(&sb, ",");
}
sbuf_trim(&sb);
sbuf_finish(&sb);
sysctl_handle_string(oidp, sbuf_data(&sb), sbuf_len(&sb), req);
sbuf_delete(&sb);
return 0;
}
static int ufoma_sysctl_current(SYSCTL_HANDLER_ARGS)
{
struct ufoma_softc *sc = (struct ufoma_softc *)oidp->oid_arg1;
char *mode;
char subbuf[]="(XXX)";
mode = ufoma_mode_to_str(sc->sc_currentmode);
if(!mode){
mode = subbuf;
snprintf(subbuf, sizeof(subbuf), "(%02x)", sc->sc_currentmode);
}
sysctl_handle_string(oidp, mode, strlen(mode), req);
return 0;
}
static int ufoma_sysctl_open(SYSCTL_HANDLER_ARGS)
{
struct ufoma_softc *sc = (struct ufoma_softc *)oidp->oid_arg1;
char *mode;
char subbuf[40];
int newmode;
int error;
int i;
mode = ufoma_mode_to_str(sc->sc_modetoactivate);
if(mode){
strncpy(subbuf, mode, sizeof(subbuf));
}else{
snprintf(subbuf, sizeof(subbuf), "(%02x)", sc->sc_modetoactivate);
}
error = sysctl_handle_string(oidp, subbuf, sizeof(subbuf), req);
if(error != 0 || req->newptr == NULL){
return error;
}
if((newmode = ufoma_str_to_mode(subbuf)) == -1){
return EINVAL;
}
for(i = 1 ; i < sc->sc_modetable[0] ; i++){
if(sc->sc_modetable[i] == newmode){
sc->sc_modetoactivate = newmode;
return 0;
}
}
return EINVAL;
}
static void
ufoma_poll(struct ucom_softc *ucom)
{
struct ufoma_softc *sc = ucom->sc_parent;
usbd_transfer_poll(sc->sc_ctrl_xfer, UFOMA_CTRL_ENDPT_MAX);
usbd_transfer_poll(sc->sc_bulk_xfer, UFOMA_BULK_ENDPT_MAX);
}