| Current Path : /sys/amd64/compile/hs32/modules/usr/src/sys/modules/s3/@/amd64/compile/hs32/modules/usr/src/sys/modules/usb/usie/@/amd64/compile/hs32/modules/usr/src/sys/modules/oce/@/amd64/compile/hs32/modules/usr/src/sys/modules/rdma/krping/@/mips/cavium/usb/ |
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| Current File : //sys/amd64/compile/hs32/modules/usr/src/sys/modules/s3/@/amd64/compile/hs32/modules/usr/src/sys/modules/usb/usie/@/amd64/compile/hs32/modules/usr/src/sys/modules/oce/@/amd64/compile/hs32/modules/usr/src/sys/modules/rdma/krping/@/mips/cavium/usb/octusb.c |
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: release/9.1.0/sys/mips/cavium/usb/octusb.c 229096 2011-12-31 14:22:02Z hselasky $");
/*-
* Copyright (c) 2010 Hans Petter Selasky. 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.
*/
/*
* This file contains the driver for Octeon Executive Library USB
* Controller driver API.
*/
/* TODO: The root HUB port callback is not yet implemented. */
#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 <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#define USB_DEBUG_VAR octusbdebug
#include <dev/usb/usb_core.h>
#include <dev/usb/usb_debug.h>
#include <dev/usb/usb_busdma.h>
#include <dev/usb/usb_process.h>
#include <dev/usb/usb_transfer.h>
#include <dev/usb/usb_device.h>
#include <dev/usb/usb_hub.h>
#include <dev/usb/usb_util.h>
#include <dev/usb/usb_controller.h>
#include <dev/usb/usb_bus.h>
#include <contrib/octeon-sdk/cvmx.h>
#include <contrib/octeon-sdk/cvmx-usb.h>
#include <mips/cavium/usb/octusb.h>
#define OCTUSB_BUS2SC(bus) \
((struct octusb_softc *)(((uint8_t *)(bus)) - \
((uint8_t *)&(((struct octusb_softc *)0)->sc_bus))))
#ifdef USB_DEBUG
static int octusbdebug = 0;
SYSCTL_NODE(_hw_usb, OID_AUTO, octusb, CTLFLAG_RW, 0, "OCTUSB");
SYSCTL_INT(_hw_usb_octusb, OID_AUTO, debug, CTLFLAG_RW,
&octusbdebug, 0, "OCTUSB debug level");
TUNABLE_INT("hw.usb.octusb.debug", &octusbdebug);
#endif
struct octusb_std_temp {
octusb_cmd_t *func;
struct octusb_td *td;
struct octusb_td *td_next;
struct usb_page_cache *pc;
uint32_t offset;
uint32_t len;
uint8_t short_pkt;
uint8_t setup_alt_next;
};
extern struct usb_bus_methods octusb_bus_methods;
extern struct usb_pipe_methods octusb_device_bulk_methods;
extern struct usb_pipe_methods octusb_device_ctrl_methods;
extern struct usb_pipe_methods octusb_device_intr_methods;
extern struct usb_pipe_methods octusb_device_isoc_methods;
static void octusb_standard_done(struct usb_xfer *);
static void octusb_device_done(struct usb_xfer *, usb_error_t);
static void octusb_timeout(void *);
static void octusb_do_poll(struct usb_bus *);
static cvmx_usb_speed_t
octusb_convert_speed(enum usb_dev_speed speed)
{
; /* indent fix */
switch (speed) {
case USB_SPEED_HIGH:
return (CVMX_USB_SPEED_HIGH);
case USB_SPEED_FULL:
return (CVMX_USB_SPEED_FULL);
default:
return (CVMX_USB_SPEED_LOW);
}
}
static cvmx_usb_transfer_t
octusb_convert_ep_type(uint8_t ep_type)
{
; /* indent fix */
switch (ep_type & UE_XFERTYPE) {
case UE_CONTROL:
return (CVMX_USB_TRANSFER_CONTROL);
case UE_INTERRUPT:
return (CVMX_USB_TRANSFER_INTERRUPT);
case UE_ISOCHRONOUS:
return (CVMX_USB_TRANSFER_ISOCHRONOUS);
case UE_BULK:
return (CVMX_USB_TRANSFER_BULK);
default:
return (0); /* should not happen */
}
}
static uint8_t
octusb_host_alloc_endpoint(struct octusb_td *td)
{
struct octusb_softc *sc;
int ep_handle;
if (td->qh->fixup_pending)
return (1); /* busy */
if (td->qh->ep_allocated)
return (0); /* success */
/* get softc */
sc = td->qh->sc;
ep_handle = cvmx_usb_open_pipe(
&sc->sc_port[td->qh->port_index].state,
0,
td->qh->dev_addr,
td->qh->ep_num,
octusb_convert_speed(td->qh->dev_speed),
td->qh->max_packet_size,
octusb_convert_ep_type(td->qh->ep_type),
(td->qh->ep_num & UE_DIR_IN) ? CVMX_USB_DIRECTION_IN :
CVMX_USB_DIRECTION_OUT,
td->qh->ep_interval,
td->qh->ep_mult,
td->qh->hs_hub_addr,
td->qh->hs_hub_port);
if (ep_handle < 0)
return (1); /* busy */
cvmx_usb_set_toggle(
&sc->sc_port[td->qh->port_index].state,
ep_handle, td->qh->ep_toggle_next);
td->qh->fixup_handle = -1;
td->qh->fixup_complete = 0;
td->qh->fixup_len = 0;
td->qh->fixup_off = 0;
td->qh->fixup_pending = 0;
td->qh->fixup_actlen = 0;
td->qh->ep_handle = ep_handle;
td->qh->ep_allocated = 1;
return (0); /* success */
}
static void
octusb_host_free_endpoint(struct octusb_td *td)
{
struct octusb_softc *sc;
if (td->qh->ep_allocated == 0)
return;
/* get softc */
sc = td->qh->sc;
if (td->qh->fixup_handle >= 0) {
/* cancel, if any */
cvmx_usb_cancel(&sc->sc_port[td->qh->port_index].state,
td->qh->ep_handle, td->qh->fixup_handle);
}
cvmx_usb_close_pipe(&sc->sc_port[td->qh->port_index].state, td->qh->ep_handle);
td->qh->ep_allocated = 0;
}
static void
octusb_complete_cb(cvmx_usb_state_t *state,
cvmx_usb_callback_t reason,
cvmx_usb_complete_t status,
int pipe_handle, int submit_handle,
int bytes_transferred, void *user_data)
{
struct octusb_td *td;
if (reason != CVMX_USB_CALLBACK_TRANSFER_COMPLETE)
return;
td = user_data;
td->qh->fixup_complete = 1;
td->qh->fixup_pending = 0;
td->qh->fixup_actlen = bytes_transferred;
td->qh->fixup_handle = -1;
switch (status) {
case CVMX_USB_COMPLETE_SUCCESS:
case CVMX_USB_COMPLETE_SHORT:
td->error_any = 0;
td->error_stall = 0;
break;
case CVMX_USB_COMPLETE_STALL:
td->error_stall = 1;
td->error_any = 1;
break;
default:
td->error_any = 1;
break;
}
}
static uint8_t
octusb_host_control_header_tx(struct octusb_td *td)
{
int status;
/* allocate endpoint and check pending */
if (octusb_host_alloc_endpoint(td))
return (1); /* busy */
/* check error */
if (td->error_any)
return (0); /* done */
if (td->qh->fixup_complete != 0) {
/* clear complete flag */
td->qh->fixup_complete = 0;
/* flush data */
usb_pc_cpu_invalidate(td->qh->fixup_pc);
return (0); /* done */
}
/* verify length */
if (td->remainder != 8) {
td->error_any = 1;
return (0); /* done */
}
usbd_copy_out(td->pc, td->offset, td->qh->fixup_buf, 8);
/* update offset and remainder */
td->offset += 8;
td->remainder -= 8;
/* setup data length and offset */
td->qh->fixup_len = UGETW(td->qh->fixup_buf + 6);
td->qh->fixup_off = 0;
if (td->qh->fixup_len > (OCTUSB_MAX_FIXUP - 8)) {
td->error_any = 1;
return (0); /* done */
}
/* do control IN request */
if (td->qh->fixup_buf[0] & UE_DIR_IN) {
struct octusb_softc *sc;
/* get softc */
sc = td->qh->sc;
/* flush data */
usb_pc_cpu_flush(td->qh->fixup_pc);
status = cvmx_usb_submit_control(
&sc->sc_port[td->qh->port_index].state,
td->qh->ep_handle, td->qh->fixup_phys,
td->qh->fixup_phys + 8, td->qh->fixup_len,
&octusb_complete_cb, td);
/* check status */
if (status < 0) {
td->error_any = 1;
return (0); /* done */
}
td->qh->fixup_handle = status;
td->qh->fixup_pending = 1;
td->qh->fixup_complete = 0;
return (1); /* busy */
}
return (0); /* done */
}
static uint8_t
octusb_host_control_data_tx(struct octusb_td *td)
{
uint32_t rem;
/* allocate endpoint and check pending */
if (octusb_host_alloc_endpoint(td))
return (1); /* busy */
/* check error */
if (td->error_any)
return (0); /* done */
rem = td->qh->fixup_len - td->qh->fixup_off;
if (td->remainder > rem) {
td->error_any = 1;
DPRINTFN(1, "Excess setup transmit data\n");
return (0); /* done */
}
usbd_copy_out(td->pc, td->offset, td->qh->fixup_buf +
td->qh->fixup_off + 8, td->remainder);
td->offset += td->remainder;
td->qh->fixup_off += td->remainder;
td->remainder = 0;
return (0); /* done */
}
static uint8_t
octusb_host_control_data_rx(struct octusb_td *td)
{
uint32_t rem;
/* allocate endpoint and check pending */
if (octusb_host_alloc_endpoint(td))
return (1); /* busy */
/* check error */
if (td->error_any)
return (0); /* done */
/* copy data from buffer */
rem = td->qh->fixup_actlen - td->qh->fixup_off;
if (rem > td->remainder)
rem = td->remainder;
usbd_copy_in(td->pc, td->offset, td->qh->fixup_buf +
td->qh->fixup_off + 8, rem);
td->offset += rem;
td->remainder -= rem;
td->qh->fixup_off += rem;
return (0); /* done */
}
static uint8_t
octusb_host_control_status_tx(struct octusb_td *td)
{
int status;
/* allocate endpoint and check pending */
if (octusb_host_alloc_endpoint(td))
return (1); /* busy */
/* check error */
if (td->error_any)
return (0); /* done */
if (td->qh->fixup_complete != 0) {
/* clear complete flag */
td->qh->fixup_complete = 0;
/* done */
return (0);
}
/* do control IN request */
if (!(td->qh->fixup_buf[0] & UE_DIR_IN)) {
struct octusb_softc *sc;
/* get softc */
sc = td->qh->sc;
/* flush data */
usb_pc_cpu_flush(td->qh->fixup_pc);
/* start USB transfer */
status = cvmx_usb_submit_control(
&sc->sc_port[td->qh->port_index].state,
td->qh->ep_handle, td->qh->fixup_phys,
td->qh->fixup_phys + 8, td->qh->fixup_len,
&octusb_complete_cb, td);
/* check status */
if (status < 0) {
td->error_any = 1;
return (0); /* done */
}
td->qh->fixup_handle = status;
td->qh->fixup_pending = 1;
td->qh->fixup_complete = 0;
return (1); /* busy */
}
return (0); /* done */
}
static uint8_t
octusb_non_control_data_tx(struct octusb_td *td)
{
struct octusb_softc *sc;
uint32_t rem;
int status;
/* allocate endpoint and check pending */
if (octusb_host_alloc_endpoint(td))
return (1); /* busy */
/* check error */
if (td->error_any)
return (0); /* done */
if ((td->qh->fixup_complete != 0) &&
((td->qh->ep_type & UE_XFERTYPE) == UE_ISOCHRONOUS)) {
td->qh->fixup_complete = 0;
return (0); /* done */
}
/* check complete */
if (td->remainder == 0) {
if (td->short_pkt)
return (0); /* complete */
/* else need to send a zero length packet */
rem = 0;
td->short_pkt = 1;
} else {
/* get maximum length */
rem = OCTUSB_MAX_FIXUP % td->qh->max_frame_size;
rem = OCTUSB_MAX_FIXUP - rem;
if (rem == 0) {
/* should not happen */
DPRINTFN(1, "Fixup buffer is too small\n");
td->error_any = 1;
return (0); /* done */
}
/* get minimum length */
if (rem > td->remainder) {
rem = td->remainder;
if ((rem == 0) || (rem % td->qh->max_frame_size))
td->short_pkt = 1;
}
/* copy data into fixup buffer */
usbd_copy_out(td->pc, td->offset, td->qh->fixup_buf, rem);
/* flush data */
usb_pc_cpu_flush(td->qh->fixup_pc);
/* pre-increment TX buffer offset */
td->offset += rem;
td->remainder -= rem;
}
/* get softc */
sc = td->qh->sc;
switch (td->qh->ep_type & UE_XFERTYPE) {
case UE_ISOCHRONOUS:
td->qh->iso_pkt.offset = 0;
td->qh->iso_pkt.length = rem;
td->qh->iso_pkt.status = 0;
/* start USB transfer */
status = cvmx_usb_submit_isochronous(&sc->sc_port[td->qh->port_index].state,
td->qh->ep_handle, 1, CVMX_USB_ISOCHRONOUS_FLAGS_ALLOW_SHORT |
CVMX_USB_ISOCHRONOUS_FLAGS_ASAP, 1, &td->qh->iso_pkt,
td->qh->fixup_phys, rem, &octusb_complete_cb, td);
break;
case UE_BULK:
/* start USB transfer */
status = cvmx_usb_submit_bulk(&sc->sc_port[td->qh->port_index].state,
td->qh->ep_handle, td->qh->fixup_phys, rem, &octusb_complete_cb, td);
break;
case UE_INTERRUPT:
/* start USB transfer (interrupt or interrupt) */
status = cvmx_usb_submit_interrupt(&sc->sc_port[td->qh->port_index].state,
td->qh->ep_handle, td->qh->fixup_phys, rem, &octusb_complete_cb, td);
break;
default:
status = -1;
break;
}
/* check status */
if (status < 0) {
td->error_any = 1;
return (0); /* done */
}
td->qh->fixup_handle = status;
td->qh->fixup_len = rem;
td->qh->fixup_pending = 1;
td->qh->fixup_complete = 0;
return (1); /* busy */
}
static uint8_t
octusb_non_control_data_rx(struct octusb_td *td)
{
struct octusb_softc *sc;
uint32_t rem;
int status;
uint8_t got_short;
/* allocate endpoint and check pending */
if (octusb_host_alloc_endpoint(td))
return (1); /* busy */
/* check error */
if (td->error_any)
return (0); /* done */
got_short = 0;
if (td->qh->fixup_complete != 0) {
/* invalidate data */
usb_pc_cpu_invalidate(td->qh->fixup_pc);
rem = td->qh->fixup_actlen;
/* verify transfer length */
if (rem != td->qh->fixup_len) {
if (rem < td->qh->fixup_len) {
/* we have a short packet */
td->short_pkt = 1;
got_short = 1;
} else {
/* invalid USB packet */
td->error_any = 1;
return (0); /* we are complete */
}
}
/* copy data into fixup buffer */
usbd_copy_in(td->pc, td->offset, td->qh->fixup_buf, rem);
/* post-increment RX buffer offset */
td->offset += rem;
td->remainder -= rem;
td->qh->fixup_complete = 0;
if ((td->qh->ep_type & UE_XFERTYPE) == UE_ISOCHRONOUS)
return (0); /* done */
}
/* check if we are complete */
if ((td->remainder == 0) || got_short) {
if (td->short_pkt) {
/* we are complete */
return (0);
}
/* else need to receive a zero length packet */
rem = 0;
td->short_pkt = 1;
} else {
/* get maximum length */
rem = OCTUSB_MAX_FIXUP % td->qh->max_frame_size;
rem = OCTUSB_MAX_FIXUP - rem;
if (rem == 0) {
/* should not happen */
DPRINTFN(1, "Fixup buffer is too small\n");
td->error_any = 1;
return (0); /* done */
}
/* get minimum length */
if (rem > td->remainder)
rem = td->remainder;
}
/* invalidate data */
usb_pc_cpu_invalidate(td->qh->fixup_pc);
/* get softc */
sc = td->qh->sc;
switch (td->qh->ep_type & UE_XFERTYPE) {
case UE_ISOCHRONOUS:
td->qh->iso_pkt.offset = 0;
td->qh->iso_pkt.length = rem;
td->qh->iso_pkt.status = 0;
/* start USB transfer */
status = cvmx_usb_submit_isochronous(&sc->sc_port[td->qh->port_index].state,
td->qh->ep_handle, 1, CVMX_USB_ISOCHRONOUS_FLAGS_ALLOW_SHORT |
CVMX_USB_ISOCHRONOUS_FLAGS_ASAP, 1, &td->qh->iso_pkt,
td->qh->fixup_phys, rem, &octusb_complete_cb, td);
break;
case UE_BULK:
/* start USB transfer */
status = cvmx_usb_submit_bulk(&sc->sc_port[td->qh->port_index].state,
td->qh->ep_handle, td->qh->fixup_phys, rem, &octusb_complete_cb, td);
break;
case UE_INTERRUPT:
/* start USB transfer */
status = cvmx_usb_submit_interrupt(&sc->sc_port[td->qh->port_index].state,
td->qh->ep_handle, td->qh->fixup_phys, rem, &octusb_complete_cb, td);
break;
default:
status = -1;
break;
}
/* check status */
if (status < 0) {
td->error_any = 1;
return (0); /* done */
}
td->qh->fixup_handle = status;
td->qh->fixup_len = rem;
td->qh->fixup_pending = 1;
td->qh->fixup_complete = 0;
return (1); /* busy */
}
static uint8_t
octusb_xfer_do_fifo(struct usb_xfer *xfer)
{
struct octusb_td *td;
DPRINTFN(8, "\n");
td = xfer->td_transfer_cache;
while (1) {
if ((td->func) (td)) {
/* operation in progress */
break;
}
if (((void *)td) == xfer->td_transfer_last) {
goto done;
}
if (td->error_any) {
goto done;
} else if (td->remainder > 0) {
/*
* We had a short transfer. If there is no
* alternate next, stop processing !
*/
if (td->alt_next == 0)
goto done;
}
/*
* Fetch the next transfer descriptor and transfer
* some flags to the next transfer descriptor
*/
td = td->obj_next;
xfer->td_transfer_cache = td;
}
return (1); /* not complete */
done:
/* compute all actual lengths */
octusb_standard_done(xfer);
return (0); /* complete */
}
static usb_error_t
octusb_standard_done_sub(struct usb_xfer *xfer)
{
struct octusb_td *td;
uint32_t len;
usb_error_t error;
DPRINTFN(8, "\n");
td = xfer->td_transfer_cache;
do {
len = td->remainder;
if (xfer->aframes != xfer->nframes) {
/*
* Verify the length and subtract
* the remainder from "frlengths[]":
*/
if (len > xfer->frlengths[xfer->aframes]) {
td->error_any = 1;
} else {
xfer->frlengths[xfer->aframes] -= len;
}
}
/* Check for transfer error */
if (td->error_any) {
/* the transfer is finished */
error = td->error_stall ? USB_ERR_STALLED : USB_ERR_IOERROR;
td = NULL;
break;
}
/* Check for short transfer */
if (len > 0) {
if (xfer->flags_int.short_frames_ok) {
/* follow alt next */
if (td->alt_next) {
td = td->obj_next;
} else {
td = NULL;
}
} else {
/* the transfer is finished */
td = NULL;
}
error = 0;
break;
}
td = td->obj_next;
/* this USB frame is complete */
error = 0;
break;
} while (0);
/* update transfer cache */
xfer->td_transfer_cache = td;
return (error);
}
static void
octusb_standard_done(struct usb_xfer *xfer)
{
struct octusb_softc *sc;
struct octusb_qh *qh;
usb_error_t error = 0;
DPRINTFN(12, "xfer=%p endpoint=%p transfer done\n",
xfer, xfer->endpoint);
/* reset scanner */
xfer->td_transfer_cache = xfer->td_transfer_first;
if (xfer->flags_int.control_xfr) {
if (xfer->flags_int.control_hdr)
error = octusb_standard_done_sub(xfer);
xfer->aframes = 1;
if (xfer->td_transfer_cache == NULL)
goto done;
}
while (xfer->aframes != xfer->nframes) {
error = octusb_standard_done_sub(xfer);
xfer->aframes++;
if (xfer->td_transfer_cache == NULL)
goto done;
}
if (xfer->flags_int.control_xfr &&
!xfer->flags_int.control_act)
error = octusb_standard_done_sub(xfer);
done:
/* update data toggle */
qh = xfer->qh_start[0];
sc = qh->sc;
xfer->endpoint->toggle_next =
cvmx_usb_get_toggle(
&sc->sc_port[qh->port_index].state,
qh->ep_handle) ? 1 : 0;
octusb_device_done(xfer, error);
}
static void
octusb_interrupt_poll(struct octusb_softc *sc)
{
struct usb_xfer *xfer;
uint8_t x;
/* poll all ports */
for (x = 0; x != sc->sc_noport; x++)
cvmx_usb_poll(&sc->sc_port[x].state);
repeat:
TAILQ_FOREACH(xfer, &sc->sc_bus.intr_q.head, wait_entry) {
if (!octusb_xfer_do_fifo(xfer)) {
/* queue has been modified */
goto repeat;
}
}
}
static void
octusb_start_standard_chain(struct usb_xfer *xfer)
{
DPRINTFN(8, "\n");
/* poll one time */
if (octusb_xfer_do_fifo(xfer)) {
/* put transfer on interrupt queue */
usbd_transfer_enqueue(&xfer->xroot->bus->intr_q, xfer);
/* start timeout, if any */
if (xfer->timeout != 0) {
usbd_transfer_timeout_ms(xfer,
&octusb_timeout, xfer->timeout);
}
}
}
void
octusb_iterate_hw_softc(struct usb_bus *bus, usb_bus_mem_sub_cb_t *cb)
{
}
usb_error_t
octusb_init(struct octusb_softc *sc)
{
cvmx_usb_initialize_flags_t flags;
int status;
uint8_t x;
/* flush all cache into memory */
usb_bus_mem_flush_all(&sc->sc_bus, &octusb_iterate_hw_softc);
/* set up the bus struct */
sc->sc_bus.methods = &octusb_bus_methods;
/* get number of ports */
sc->sc_noport = cvmx_usb_get_num_ports();
/* check number of ports */
if (sc->sc_noport > OCTUSB_MAX_PORTS)
sc->sc_noport = OCTUSB_MAX_PORTS;
/* set USB revision */
sc->sc_bus.usbrev = USB_REV_2_0;
/* flags for port initialization */
flags = CVMX_USB_INITIALIZE_FLAGS_CLOCK_AUTO;
#ifdef USB_DEBUG
if (octusbdebug > 100)
flags |= CVMX_USB_INITIALIZE_FLAGS_DEBUG_ALL;
#endif
USB_BUS_LOCK(&sc->sc_bus);
/* setup all ports */
for (x = 0; x != sc->sc_noport; x++) {
status = cvmx_usb_initialize(&sc->sc_port[x].state, x, flags);
if (status < 0)
sc->sc_port[x].disabled = 1;
}
USB_BUS_UNLOCK(&sc->sc_bus);
/* catch lost interrupts */
octusb_do_poll(&sc->sc_bus);
return (0);
}
usb_error_t
octusb_uninit(struct octusb_softc *sc)
{
uint8_t x;
USB_BUS_LOCK(&sc->sc_bus);
for (x = 0; x != sc->sc_noport; x++) {
if (sc->sc_port[x].disabled == 0)
cvmx_usb_shutdown(&sc->sc_port[x].state);
}
USB_BUS_UNLOCK(&sc->sc_bus);
return (0);
}
static void
octusb_suspend(struct octusb_softc *sc)
{
/* TODO */
}
static void
octusb_resume(struct octusb_softc *sc)
{
/* TODO */
}
/*------------------------------------------------------------------------*
* octusb_interrupt - OCTUSB interrupt handler
*------------------------------------------------------------------------*/
void
octusb_interrupt(struct octusb_softc *sc)
{
USB_BUS_LOCK(&sc->sc_bus);
DPRINTFN(16, "real interrupt\n");
/* poll all the USB transfers */
octusb_interrupt_poll(sc);
USB_BUS_UNLOCK(&sc->sc_bus);
}
/*------------------------------------------------------------------------*
* octusb_timeout - OCTUSB transfer timeout handler
*------------------------------------------------------------------------*/
static void
octusb_timeout(void *arg)
{
struct usb_xfer *xfer = arg;
DPRINTF("xfer=%p\n", xfer);
USB_BUS_LOCK_ASSERT(xfer->xroot->bus, MA_OWNED);
/* transfer is transferred */
octusb_device_done(xfer, USB_ERR_TIMEOUT);
}
/*------------------------------------------------------------------------*
* octusb_do_poll - OCTUSB poll transfers
*------------------------------------------------------------------------*/
static void
octusb_do_poll(struct usb_bus *bus)
{
struct octusb_softc *sc = OCTUSB_BUS2SC(bus);
USB_BUS_LOCK(&sc->sc_bus);
octusb_interrupt_poll(sc);
USB_BUS_UNLOCK(&sc->sc_bus);
}
static void
octusb_setup_standard_chain_sub(struct octusb_std_temp *temp)
{
struct octusb_td *td;
/* get current Transfer Descriptor */
td = temp->td_next;
temp->td = td;
/* prepare for next TD */
temp->td_next = td->obj_next;
/* fill out the Transfer Descriptor */
td->func = temp->func;
td->pc = temp->pc;
td->offset = temp->offset;
td->remainder = temp->len;
td->error_any = 0;
td->error_stall = 0;
td->short_pkt = temp->short_pkt;
td->alt_next = temp->setup_alt_next;
}
static void
octusb_setup_standard_chain(struct usb_xfer *xfer)
{
struct octusb_std_temp temp;
struct octusb_td *td;
uint32_t x;
DPRINTFN(9, "addr=%d endpt=%d sumlen=%d speed=%d\n",
xfer->address, UE_GET_ADDR(xfer->endpointno),
xfer->sumlen, usbd_get_speed(xfer->xroot->udev));
/* setup starting point */
td = xfer->td_start[0];
xfer->td_transfer_first = td;
xfer->td_transfer_cache = td;
temp.td = NULL;
temp.td_next = td;
temp.setup_alt_next = xfer->flags_int.short_frames_ok;
temp.offset = 0;
/* check if we should prepend a setup message */
if (xfer->flags_int.control_xfr) {
if (xfer->flags_int.control_hdr) {
temp.func = &octusb_host_control_header_tx;
temp.len = xfer->frlengths[0];
temp.pc = xfer->frbuffers + 0;
temp.short_pkt = temp.len ? 1 : 0;
/* check for last frame */
if (xfer->nframes == 1) {
/*
* no STATUS stage yet, SETUP is
* last
*/
if (xfer->flags_int.control_act)
temp.setup_alt_next = 0;
}
octusb_setup_standard_chain_sub(&temp);
}
x = 1;
} else {
x = 0;
}
if (x != xfer->nframes) {
if (xfer->endpointno & UE_DIR_IN) {
if (xfer->flags_int.control_xfr)
temp.func = &octusb_host_control_data_rx;
else
temp.func = &octusb_non_control_data_rx;
} else {
if (xfer->flags_int.control_xfr)
temp.func = &octusb_host_control_data_tx;
else
temp.func = &octusb_non_control_data_tx;
}
/* setup "pc" pointer */
temp.pc = xfer->frbuffers + x;
}
while (x != xfer->nframes) {
/* DATA0 or DATA1 message */
temp.len = xfer->frlengths[x];
x++;
if (x == xfer->nframes) {
if (xfer->flags_int.control_xfr) {
/* no STATUS stage yet, DATA is last */
if (xfer->flags_int.control_act)
temp.setup_alt_next = 0;
} else {
temp.setup_alt_next = 0;
}
}
if (temp.len == 0) {
/* make sure that we send an USB packet */
temp.short_pkt = 0;
} else {
/* regular data transfer */
temp.short_pkt = (xfer->flags.force_short_xfer) ? 0 : 1;
}
octusb_setup_standard_chain_sub(&temp);
if (xfer->flags_int.isochronous_xfr) {
/* get next data offset */
temp.offset += temp.len;
} else {
/* get next Page Cache pointer */
temp.pc = xfer->frbuffers + x;
}
}
/* check if we should append a status stage */
if (xfer->flags_int.control_xfr &&
!xfer->flags_int.control_act) {
temp.func = &octusb_host_control_status_tx;
temp.len = 0;
temp.pc = NULL;
temp.short_pkt = 0;
temp.setup_alt_next = 0;
octusb_setup_standard_chain_sub(&temp);
}
/* must have at least one frame! */
td = temp.td;
xfer->td_transfer_last = td;
/* properly setup QH */
td->qh->ep_allocated = 0;
td->qh->ep_toggle_next = xfer->endpoint->toggle_next ? 1 : 0;
}
/*------------------------------------------------------------------------*
* octusb_device_done - OCTUSB transfers done code
*
* NOTE: This function can be called more than one time in a row.
*------------------------------------------------------------------------*/
static void
octusb_device_done(struct usb_xfer *xfer, usb_error_t error)
{
USB_BUS_LOCK_ASSERT(xfer->xroot->bus, MA_OWNED);
DPRINTFN(2, "xfer=%p, endpoint=%p, error=%d\n",
xfer, xfer->endpoint, error);
/*
* 1) Free any endpoints.
* 2) Control transfers can be split and we should not re-open
* the data pipe between transactions unless there is an error.
*/
if ((xfer->flags_int.control_act == 0) || (error != 0)) {
struct octusb_td *td;
td = xfer->td_start[0];
octusb_host_free_endpoint(td);
}
/* dequeue transfer and start next transfer */
usbd_transfer_done(xfer, error);
}
/*------------------------------------------------------------------------*
* octusb bulk support
*------------------------------------------------------------------------*/
static void
octusb_device_bulk_open(struct usb_xfer *xfer)
{
return;
}
static void
octusb_device_bulk_close(struct usb_xfer *xfer)
{
octusb_device_done(xfer, USB_ERR_CANCELLED);
}
static void
octusb_device_bulk_enter(struct usb_xfer *xfer)
{
return;
}
static void
octusb_device_bulk_start(struct usb_xfer *xfer)
{
/* setup TDs */
octusb_setup_standard_chain(xfer);
octusb_start_standard_chain(xfer);
}
struct usb_pipe_methods octusb_device_bulk_methods =
{
.open = octusb_device_bulk_open,
.close = octusb_device_bulk_close,
.enter = octusb_device_bulk_enter,
.start = octusb_device_bulk_start,
};
/*------------------------------------------------------------------------*
* octusb control support
*------------------------------------------------------------------------*/
static void
octusb_device_ctrl_open(struct usb_xfer *xfer)
{
return;
}
static void
octusb_device_ctrl_close(struct usb_xfer *xfer)
{
octusb_device_done(xfer, USB_ERR_CANCELLED);
}
static void
octusb_device_ctrl_enter(struct usb_xfer *xfer)
{
return;
}
static void
octusb_device_ctrl_start(struct usb_xfer *xfer)
{
/* setup TDs */
octusb_setup_standard_chain(xfer);
octusb_start_standard_chain(xfer);
}
struct usb_pipe_methods octusb_device_ctrl_methods =
{
.open = octusb_device_ctrl_open,
.close = octusb_device_ctrl_close,
.enter = octusb_device_ctrl_enter,
.start = octusb_device_ctrl_start,
};
/*------------------------------------------------------------------------*
* octusb interrupt support
*------------------------------------------------------------------------*/
static void
octusb_device_intr_open(struct usb_xfer *xfer)
{
return;
}
static void
octusb_device_intr_close(struct usb_xfer *xfer)
{
octusb_device_done(xfer, USB_ERR_CANCELLED);
}
static void
octusb_device_intr_enter(struct usb_xfer *xfer)
{
return;
}
static void
octusb_device_intr_start(struct usb_xfer *xfer)
{
/* setup TDs */
octusb_setup_standard_chain(xfer);
octusb_start_standard_chain(xfer);
}
struct usb_pipe_methods octusb_device_intr_methods =
{
.open = octusb_device_intr_open,
.close = octusb_device_intr_close,
.enter = octusb_device_intr_enter,
.start = octusb_device_intr_start,
};
/*------------------------------------------------------------------------*
* octusb isochronous support
*------------------------------------------------------------------------*/
static void
octusb_device_isoc_open(struct usb_xfer *xfer)
{
return;
}
static void
octusb_device_isoc_close(struct usb_xfer *xfer)
{
octusb_device_done(xfer, USB_ERR_CANCELLED);
}
static void
octusb_device_isoc_enter(struct usb_xfer *xfer)
{
struct octusb_softc *sc = OCTUSB_BUS2SC(xfer->xroot->bus);
uint32_t temp;
uint32_t frame_count;
uint32_t fs_frames;
DPRINTFN(5, "xfer=%p next=%d nframes=%d\n",
xfer, xfer->endpoint->isoc_next, xfer->nframes);
/* get the current frame index */
frame_count = cvmx_usb_get_frame_number(
&sc->sc_port[xfer->xroot->udev->port_index].state);
/*
* check if the frame index is within the window where the frames
* will be inserted
*/
temp = (frame_count - xfer->endpoint->isoc_next) & 0x7FF;
if (usbd_get_speed(xfer->xroot->udev) == USB_SPEED_HIGH) {
fs_frames = (xfer->nframes + 7) / 8;
} else {
fs_frames = xfer->nframes;
}
if ((xfer->endpoint->is_synced == 0) || (temp < fs_frames)) {
/*
* If there is data underflow or the pipe queue is
* empty we schedule the transfer a few frames ahead
* of the current frame position. Else two isochronous
* transfers might overlap.
*/
xfer->endpoint->isoc_next = (frame_count + 3) & 0x7FF;
xfer->endpoint->is_synced = 1;
DPRINTFN(2, "start next=%d\n", xfer->endpoint->isoc_next);
}
/*
* compute how many milliseconds the insertion is ahead of the
* current frame position:
*/
temp = (xfer->endpoint->isoc_next - frame_count) & 0x7FF;
/*
* pre-compute when the isochronous transfer will be finished:
*/
xfer->isoc_time_complete =
usb_isoc_time_expand(&sc->sc_bus, frame_count) + temp +
fs_frames;
/* compute frame number for next insertion */
xfer->endpoint->isoc_next += fs_frames;
}
static void
octusb_device_isoc_start(struct usb_xfer *xfer)
{
/* setup TDs */
octusb_setup_standard_chain(xfer);
octusb_start_standard_chain(xfer);
}
struct usb_pipe_methods octusb_device_isoc_methods =
{
.open = octusb_device_isoc_open,
.close = octusb_device_isoc_close,
.enter = octusb_device_isoc_enter,
.start = octusb_device_isoc_start,
};
/*------------------------------------------------------------------------*
* OCTUSB root HUB support
*------------------------------------------------------------------------*
* Simulate a hardware HUB by handling all the necessary requests.
*------------------------------------------------------------------------*/
static const
struct usb_device_descriptor octusb_devd = {
.bLength = sizeof(octusb_devd),
.bDescriptorType = UDESC_DEVICE,
.bcdUSB = {0x00, 0x02},
.bDeviceClass = UDCLASS_HUB,
.bDeviceSubClass = UDSUBCLASS_HUB,
.bDeviceProtocol = UDPROTO_FSHUB,
.bMaxPacketSize = 64,
.idVendor = {0},
.idProduct = {0},
.bcdDevice = {0x00, 0x01},
.iManufacturer = 1,
.iProduct = 2,
.iSerialNumber = 0,
.bNumConfigurations = 1,
};
static const
struct usb_device_qualifier octusb_odevd = {
.bLength = sizeof(octusb_odevd),
.bDescriptorType = UDESC_DEVICE_QUALIFIER,
.bcdUSB = {0x00, 0x02},
.bDeviceClass = UDCLASS_HUB,
.bDeviceSubClass = UDSUBCLASS_HUB,
.bDeviceProtocol = UDPROTO_FSHUB,
.bMaxPacketSize0 = 0,
.bNumConfigurations = 0,
.bReserved = 0,
};
static const
struct octusb_config_desc octusb_confd = {
.confd = {
.bLength = sizeof(struct usb_config_descriptor),
.bDescriptorType = UDESC_CONFIG,
.wTotalLength[0] = sizeof(octusb_confd),
.bNumInterface = 1,
.bConfigurationValue = 1,
.iConfiguration = 0,
.bmAttributes = UC_SELF_POWERED,
.bMaxPower = 0 /* max power */
},
.ifcd = {
.bLength = sizeof(struct usb_interface_descriptor),
.bDescriptorType = UDESC_INTERFACE,
.bNumEndpoints = 1,
.bInterfaceClass = UICLASS_HUB,
.bInterfaceSubClass = UISUBCLASS_HUB,
.bInterfaceProtocol = UIPROTO_FSHUB,
},
.endpd = {
.bLength = sizeof(struct usb_endpoint_descriptor),
.bDescriptorType = UDESC_ENDPOINT,
.bEndpointAddress = UE_DIR_IN | OCTUSB_INTR_ENDPT,
.bmAttributes = UE_INTERRUPT,
.wMaxPacketSize[0] = 8, /* max packet (63 ports) */
.bInterval = 255,
},
};
static const
struct usb_hub_descriptor_min octusb_hubd =
{
.bDescLength = sizeof(octusb_hubd),
.bDescriptorType = UDESC_HUB,
.bNbrPorts = 2,
.wHubCharacteristics = {UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0},
.bPwrOn2PwrGood = 50,
.bHubContrCurrent = 0,
.DeviceRemovable = {0x00}, /* all ports are removable */
};
static usb_error_t
octusb_roothub_exec(struct usb_device *udev,
struct usb_device_request *req, const void **pptr, uint16_t *plength)
{
struct octusb_softc *sc = OCTUSB_BUS2SC(udev->bus);
const void *ptr;
const char *str_ptr;
uint16_t value;
uint16_t index;
uint16_t status;
uint16_t change;
uint16_t len;
usb_error_t err;
cvmx_usb_port_status_t usb_port_status;
USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED);
/* XXX disable power save mode, hence it is not supported */
udev->power_mode = USB_POWER_MODE_ON;
/* buffer reset */
ptr = (const void *)&sc->sc_hub_desc.temp;
len = 0;
err = 0;
value = UGETW(req->wValue);
index = UGETW(req->wIndex);
DPRINTFN(3, "type=0x%02x request=0x%02x wLen=0x%04x "
"wValue=0x%04x wIndex=0x%04x\n",
req->bmRequestType, req->bRequest,
UGETW(req->wLength), value, index);
#define C(x,y) ((x) | ((y) << 8))
switch (C(req->bRequest, req->bmRequestType)) {
case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE):
case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE):
case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT):
break;
case C(UR_GET_CONFIG, UT_READ_DEVICE):
len = 1;
sc->sc_hub_desc.temp[0] = sc->sc_conf;
break;
case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE):
switch (value >> 8) {
case UDESC_DEVICE:
if ((value & 0xff) != 0) {
err = USB_ERR_IOERROR;
goto done;
}
len = sizeof(octusb_devd);
ptr = (const void *)&octusb_devd;
break;
case UDESC_DEVICE_QUALIFIER:
if ((value & 0xff) != 0) {
err = USB_ERR_IOERROR;
goto done;
}
len = sizeof(octusb_odevd);
ptr = (const void *)&octusb_odevd;
break;
case UDESC_CONFIG:
if ((value & 0xff) != 0) {
err = USB_ERR_IOERROR;
goto done;
}
len = sizeof(octusb_confd);
ptr = (const void *)&octusb_confd;
break;
case UDESC_STRING:
switch (value & 0xff) {
case 0: /* Language table */
str_ptr = "\001";
break;
case 1: /* Vendor */
str_ptr = "Cavium Networks";
break;
case 2: /* Product */
str_ptr = "OCTUSB Root HUB";
break;
default:
str_ptr = "";
break;
}
len = usb_make_str_desc(sc->sc_hub_desc.temp,
sizeof(sc->sc_hub_desc.temp), str_ptr);
break;
default:
err = USB_ERR_IOERROR;
goto done;
}
break;
case C(UR_GET_INTERFACE, UT_READ_INTERFACE):
len = 1;
sc->sc_hub_desc.temp[0] = 0;
break;
case C(UR_GET_STATUS, UT_READ_DEVICE):
len = 2;
USETW(sc->sc_hub_desc.stat.wStatus, UDS_SELF_POWERED);
break;
case C(UR_GET_STATUS, UT_READ_INTERFACE):
case C(UR_GET_STATUS, UT_READ_ENDPOINT):
len = 2;
USETW(sc->sc_hub_desc.stat.wStatus, 0);
break;
case C(UR_SET_ADDRESS, UT_WRITE_DEVICE):
if (value >= OCTUSB_MAX_DEVICES) {
err = USB_ERR_IOERROR;
goto done;
}
sc->sc_addr = value;
break;
case C(UR_SET_CONFIG, UT_WRITE_DEVICE):
if ((value != 0) && (value != 1)) {
err = USB_ERR_IOERROR;
goto done;
}
sc->sc_conf = value;
break;
case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE):
break;
case C(UR_SET_FEATURE, UT_WRITE_DEVICE):
case C(UR_SET_FEATURE, UT_WRITE_INTERFACE):
case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT):
err = USB_ERR_IOERROR;
goto done;
case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE):
break;
case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT):
break;
/* Hub requests */
case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE):
break;
case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER):
DPRINTFN(4, "UR_CLEAR_PORT_FEATURE "
"port=%d feature=%d\n",
index, value);
if ((index < 1) ||
(index > sc->sc_noport) ||
sc->sc_port[index - 1].disabled) {
err = USB_ERR_IOERROR;
goto done;
}
index--;
switch (value) {
case UHF_PORT_ENABLE:
cvmx_usb_disable(&sc->sc_port[index].state);
break;
case UHF_PORT_SUSPEND:
case UHF_PORT_RESET:
break;
case UHF_C_PORT_CONNECTION:
cvmx_usb_set_status(&sc->sc_port[index].state,
cvmx_usb_get_status(&sc->sc_port[index].state));
break;
case UHF_C_PORT_ENABLE:
cvmx_usb_set_status(&sc->sc_port[index].state,
cvmx_usb_get_status(&sc->sc_port[index].state));
break;
case UHF_C_PORT_OVER_CURRENT:
cvmx_usb_set_status(&sc->sc_port[index].state,
cvmx_usb_get_status(&sc->sc_port[index].state));
break;
case UHF_C_PORT_RESET:
sc->sc_isreset = 0;
goto done;
case UHF_C_PORT_SUSPEND:
break;
case UHF_PORT_CONNECTION:
case UHF_PORT_OVER_CURRENT:
case UHF_PORT_POWER:
case UHF_PORT_LOW_SPEED:
default:
err = USB_ERR_IOERROR;
goto done;
}
break;
case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE):
if ((value & 0xff) != 0) {
err = USB_ERR_IOERROR;
goto done;
}
sc->sc_hubd = octusb_hubd;
sc->sc_hubd.bNbrPorts = sc->sc_noport;
len = sizeof(sc->sc_hubd);
ptr = (const void *)&sc->sc_hubd;
break;
case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE):
len = 16;
memset(sc->sc_hub_desc.temp, 0, 16);
break;
case C(UR_GET_STATUS, UT_READ_CLASS_OTHER):
if ((index < 1) ||
(index > sc->sc_noport) ||
sc->sc_port[index - 1].disabled) {
err = USB_ERR_IOERROR;
goto done;
}
index--;
usb_port_status = cvmx_usb_get_status(&sc->sc_port[index].state);
status = change = 0;
if (usb_port_status.connected)
status |= UPS_CURRENT_CONNECT_STATUS;
if (usb_port_status.port_enabled)
status |= UPS_PORT_ENABLED;
if (usb_port_status.port_over_current)
status |= UPS_OVERCURRENT_INDICATOR;
if (usb_port_status.port_powered)
status |= UPS_PORT_POWER;
switch (usb_port_status.port_speed) {
case CVMX_USB_SPEED_HIGH:
status |= UPS_HIGH_SPEED;
break;
case CVMX_USB_SPEED_FULL:
break;
default:
status |= UPS_LOW_SPEED;
break;
}
if (usb_port_status.connect_change)
change |= UPS_C_CONNECT_STATUS;
if (sc->sc_isreset)
change |= UPS_C_PORT_RESET;
USETW(sc->sc_hub_desc.ps.wPortStatus, status);
USETW(sc->sc_hub_desc.ps.wPortChange, change);
len = sizeof(sc->sc_hub_desc.ps);
break;
case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE):
err = USB_ERR_IOERROR;
goto done;
case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE):
break;
case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER):
if ((index < 1) ||
(index > sc->sc_noport) ||
sc->sc_port[index - 1].disabled) {
err = USB_ERR_IOERROR;
goto done;
}
index--;
switch (value) {
case UHF_PORT_ENABLE:
break;
case UHF_PORT_RESET:
cvmx_usb_disable(&sc->sc_port[index].state);
if (cvmx_usb_enable(&sc->sc_port[index].state)) {
err = USB_ERR_IOERROR;
goto done;
}
sc->sc_isreset = 1;
goto done;
case UHF_PORT_POWER:
/* pretend we turned on power */
goto done;
case UHF_PORT_SUSPEND:
case UHF_C_PORT_CONNECTION:
case UHF_C_PORT_ENABLE:
case UHF_C_PORT_OVER_CURRENT:
case UHF_PORT_CONNECTION:
case UHF_PORT_OVER_CURRENT:
case UHF_PORT_LOW_SPEED:
case UHF_C_PORT_SUSPEND:
case UHF_C_PORT_RESET:
default:
err = USB_ERR_IOERROR;
goto done;
}
break;
default:
err = USB_ERR_IOERROR;
goto done;
}
done:
*plength = len;
*pptr = ptr;
return (err);
}
static void
octusb_xfer_setup(struct usb_setup_params *parm)
{
struct usb_page_search page_info;
struct usb_page_cache *pc;
struct octusb_softc *sc;
struct octusb_qh *qh;
struct usb_xfer *xfer;
void *last_obj;
uint32_t n;
uint32_t ntd;
sc = OCTUSB_BUS2SC(parm->udev->bus);
xfer = parm->curr_xfer;
qh = NULL;
/*
* NOTE: This driver does not use any of the parameters that
* are computed from the following values. Just set some
* reasonable dummies:
*/
parm->hc_max_packet_size = 0x400;
parm->hc_max_packet_count = 3;
parm->hc_max_frame_size = 0xC00;
usbd_transfer_setup_sub(parm);
if (parm->err)
return;
/* Allocate a queue head */
if (usbd_transfer_setup_sub_malloc(
parm, &pc, sizeof(struct octusb_qh),
USB_HOST_ALIGN, 1)) {
parm->err = USB_ERR_NOMEM;
return;
}
if (parm->buf) {
usbd_get_page(pc, 0, &page_info);
qh = page_info.buffer;
/* fill out QH */
qh->sc = OCTUSB_BUS2SC(xfer->xroot->bus);
qh->max_frame_size = xfer->max_frame_size;
qh->max_packet_size = xfer->max_packet_size;
qh->ep_num = xfer->endpointno;
qh->ep_type = xfer->endpoint->edesc->bmAttributes;
qh->dev_addr = xfer->address;
qh->dev_speed = usbd_get_speed(xfer->xroot->udev);
qh->port_index = xfer->xroot->udev->port_index;
switch (xfer->endpoint->edesc->bmAttributes & UE_XFERTYPE) {
case UE_INTERRUPT:
if (usbd_get_speed(xfer->xroot->udev) == USB_SPEED_HIGH)
qh->ep_interval = xfer->interval * 8;
else
qh->ep_interval = xfer->interval * 1;
break;
case UE_ISOCHRONOUS:
qh->ep_interval = 1 << xfer->fps_shift;
break;
default:
qh->ep_interval = 0;
break;
}
qh->ep_mult = xfer->max_packet_count & 3;
qh->hs_hub_addr = xfer->xroot->udev->hs_hub_addr;
qh->hs_hub_port = xfer->xroot->udev->hs_port_no;
}
xfer->qh_start[0] = qh;
/* Allocate a fixup buffer */
if (usbd_transfer_setup_sub_malloc(
parm, &pc, OCTUSB_MAX_FIXUP,
OCTUSB_MAX_FIXUP, 1)) {
parm->err = USB_ERR_NOMEM;
return;
}
if (parm->buf) {
usbd_get_page(pc, 0, &page_info);
qh->fixup_phys = page_info.physaddr;
qh->fixup_pc = pc;
qh->fixup_buf = page_info.buffer;
}
/* Allocate transfer descriptors */
last_obj = NULL;
ntd = xfer->nframes + 1 /* STATUS */ + 1 /* SYNC */ ;
if (usbd_transfer_setup_sub_malloc(
parm, &pc, sizeof(struct octusb_td),
USB_HOST_ALIGN, ntd)) {
parm->err = USB_ERR_NOMEM;
return;
}
if (parm->buf) {
for (n = 0; n != ntd; n++) {
struct octusb_td *td;
usbd_get_page(pc + n, 0, &page_info);
td = page_info.buffer;
td->qh = qh;
td->obj_next = last_obj;
last_obj = td;
}
}
xfer->td_start[0] = last_obj;
}
static void
octusb_ep_init(struct usb_device *udev, struct usb_endpoint_descriptor *edesc,
struct usb_endpoint *ep)
{
struct octusb_softc *sc = OCTUSB_BUS2SC(udev->bus);
DPRINTFN(2, "endpoint=%p, addr=%d, endpt=%d, mode=%d (%d)\n",
ep, udev->address, edesc->bEndpointAddress,
udev->flags.usb_mode, sc->sc_addr);
if (udev->flags.usb_mode != USB_MODE_HOST) {
/* not supported */
return;
}
if (udev->device_index != sc->sc_addr) {
switch (edesc->bmAttributes & UE_XFERTYPE) {
case UE_CONTROL:
ep->methods = &octusb_device_ctrl_methods;
break;
case UE_INTERRUPT:
ep->methods = &octusb_device_intr_methods;
break;
case UE_ISOCHRONOUS:
if (udev->speed != USB_SPEED_LOW)
ep->methods = &octusb_device_isoc_methods;
break;
case UE_BULK:
ep->methods = &octusb_device_bulk_methods;
break;
default:
/* do nothing */
break;
}
}
}
static void
octusb_xfer_unsetup(struct usb_xfer *xfer)
{
DPRINTF("Nothing to do.\n");
}
static void
octusb_get_dma_delay(struct usb_device *udev, uint32_t *pus)
{
/* DMA delay - wait until any use of memory is finished */
*pus = (2125); /* microseconds */
}
static void
octusb_device_resume(struct usb_device *udev)
{
DPRINTF("Nothing to do.\n");
}
static void
octusb_device_suspend(struct usb_device *udev)
{
DPRINTF("Nothing to do.\n");
}
static void
octusb_set_hw_power(struct usb_bus *bus)
{
DPRINTF("Nothing to do.\n");
}
static void
octusb_set_hw_power_sleep(struct usb_bus *bus, uint32_t state)
{
struct octusb_softc *sc = OCTUSB_BUS2SC(bus);
switch (state) {
case USB_HW_POWER_SUSPEND:
octusb_suspend(sc);
break;
case USB_HW_POWER_SHUTDOWN:
octusb_uninit(sc);
break;
case USB_HW_POWER_RESUME:
octusb_resume(sc);
break;
default:
break;
}
}
struct usb_bus_methods octusb_bus_methods = {
.endpoint_init = octusb_ep_init,
.xfer_setup = octusb_xfer_setup,
.xfer_unsetup = octusb_xfer_unsetup,
.get_dma_delay = octusb_get_dma_delay,
.device_resume = octusb_device_resume,
.device_suspend = octusb_device_suspend,
.set_hw_power = octusb_set_hw_power,
.set_hw_power_sleep = octusb_set_hw_power_sleep,
.roothub_exec = octusb_roothub_exec,
.xfer_poll = octusb_do_poll,
};