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freebsd-dev/sys/dev/usb/controller/avr32dci.c
Hans Petter Selasky a5cf1aaaff Add support for the so-called streams feature of BULK endpoints 
in SUPER-speed mode, USB 3.0.

This feature has not been tested yet, due to lack of hardware.

This feature is useful when implementing protocols like UASP,
USB attached SCSI which promises higher USB mass storage throughput.

This patch also implements support for hardware processing of endpoints
for increased performance. The switching to hardware processing
of an endpoint is done via a callback to the USB controller driver. The
stream feature is implemented like a variant of a hardware USB protocol.

USB controller drivers implementing device mode needs to be updated to
implement the new "xfer_stall" USB controller method and remove the
"xfer" argument from the "set_stall" method.

The API's toward existing USB drivers are preserved. To setup a USB transfer
in stream mode, set the "stream_id" field of the USB config structure to
the desired value.

The maximum number of BULK streams is currently hardcoded and limited to 8
via a define in usb_freebsd.h.

All USB drivers should be re-compiled after this change.

LibUSB will be updated next week to support streams mode. A new IOCTL to
setup BULK streams as already been implemented. The ugen device nodes
currently only supports stream ID zero.

The FreeBSD version has been bumped.

MFC after:	2 weeks
2012-08-12 17:53:06 +00:00

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#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*-
* Copyright (c) 2009 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 the AVR32 series USB Device
* Controller
*/
/*
* NOTE: When the chip detects BUS-reset it will also reset the
* endpoints, Function-address and more.
*/
#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 avr32dci_debug
#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 <dev/usb/controller/avr32dci.h>
#define AVR32_BUS2SC(bus) \
((struct avr32dci_softc *)(((uint8_t *)(bus)) - \
((uint8_t *)&(((struct avr32dci_softc *)0)->sc_bus))))
#define AVR32_PC2SC(pc) \
AVR32_BUS2SC(USB_DMATAG_TO_XROOT((pc)->tag_parent)->bus)
#ifdef USB_DEBUG
static int avr32dci_debug = 0;
static SYSCTL_NODE(_hw_usb, OID_AUTO, avr32dci, CTLFLAG_RW, 0, "USB AVR32 DCI");
SYSCTL_INT(_hw_usb_avr32dci, OID_AUTO, debug, CTLFLAG_RW,
&avr32dci_debug, 0, "AVR32 DCI debug level");
#endif
#define AVR32_INTR_ENDPT 1
/* prototypes */
struct usb_bus_methods avr32dci_bus_methods;
struct usb_pipe_methods avr32dci_device_non_isoc_methods;
struct usb_pipe_methods avr32dci_device_isoc_fs_methods;
static avr32dci_cmd_t avr32dci_setup_rx;
static avr32dci_cmd_t avr32dci_data_rx;
static avr32dci_cmd_t avr32dci_data_tx;
static avr32dci_cmd_t avr32dci_data_tx_sync;
static void avr32dci_device_done(struct usb_xfer *, usb_error_t);
static void avr32dci_do_poll(struct usb_bus *);
static void avr32dci_standard_done(struct usb_xfer *);
static void avr32dci_root_intr(struct avr32dci_softc *sc);
/*
* Here is a list of what the chip supports:
*/
static const struct usb_hw_ep_profile
avr32dci_ep_profile[4] = {
[0] = {
.max_in_frame_size = 64,
.max_out_frame_size = 64,
.is_simplex = 1,
.support_control = 1,
},
[1] = {
.max_in_frame_size = 512,
.max_out_frame_size = 512,
.is_simplex = 1,
.support_bulk = 1,
.support_interrupt = 1,
.support_isochronous = 1,
.support_in = 1,
.support_out = 1,
},
[2] = {
.max_in_frame_size = 64,
.max_out_frame_size = 64,
.is_simplex = 1,
.support_bulk = 1,
.support_interrupt = 1,
.support_in = 1,
.support_out = 1,
},
[3] = {
.max_in_frame_size = 1024,
.max_out_frame_size = 1024,
.is_simplex = 1,
.support_bulk = 1,
.support_interrupt = 1,
.support_isochronous = 1,
.support_in = 1,
.support_out = 1,
},
};
static void
avr32dci_get_hw_ep_profile(struct usb_device *udev,
const struct usb_hw_ep_profile **ppf, uint8_t ep_addr)
{
if (ep_addr == 0)
*ppf = avr32dci_ep_profile;
else if (ep_addr < 3)
*ppf = avr32dci_ep_profile + 1;
else if (ep_addr < 5)
*ppf = avr32dci_ep_profile + 2;
else if (ep_addr < 7)
*ppf = avr32dci_ep_profile + 3;
else
*ppf = NULL;
}
static void
avr32dci_mod_ctrl(struct avr32dci_softc *sc, uint32_t set, uint32_t clear)
{
uint32_t temp;
temp = AVR32_READ_4(sc, AVR32_CTRL);
temp |= set;
temp &= ~clear;
AVR32_WRITE_4(sc, AVR32_CTRL, temp);
}
static void
avr32dci_mod_ien(struct avr32dci_softc *sc, uint32_t set, uint32_t clear)
{
uint32_t temp;
temp = AVR32_READ_4(sc, AVR32_IEN);
temp |= set;
temp &= ~clear;
AVR32_WRITE_4(sc, AVR32_IEN, temp);
}
static void
avr32dci_clocks_on(struct avr32dci_softc *sc)
{
if (sc->sc_flags.clocks_off &&
sc->sc_flags.port_powered) {
DPRINTFN(5, "\n");
/* turn on clocks */
(sc->sc_clocks_on) (&sc->sc_bus);
avr32dci_mod_ctrl(sc, AVR32_CTRL_DEV_EN_USBA, 0);
sc->sc_flags.clocks_off = 0;
}
}
static void
avr32dci_clocks_off(struct avr32dci_softc *sc)
{
if (!sc->sc_flags.clocks_off) {
DPRINTFN(5, "\n");
avr32dci_mod_ctrl(sc, 0, AVR32_CTRL_DEV_EN_USBA);
/* turn clocks off */
(sc->sc_clocks_off) (&sc->sc_bus);
sc->sc_flags.clocks_off = 1;
}
}
static void
avr32dci_pull_up(struct avr32dci_softc *sc)
{
/* pullup D+, if possible */
if (!sc->sc_flags.d_pulled_up &&
sc->sc_flags.port_powered) {
sc->sc_flags.d_pulled_up = 1;
avr32dci_mod_ctrl(sc, 0, AVR32_CTRL_DEV_DETACH);
}
}
static void
avr32dci_pull_down(struct avr32dci_softc *sc)
{
/* pulldown D+, if possible */
if (sc->sc_flags.d_pulled_up) {
sc->sc_flags.d_pulled_up = 0;
avr32dci_mod_ctrl(sc, AVR32_CTRL_DEV_DETACH, 0);
}
}
static void
avr32dci_wakeup_peer(struct avr32dci_softc *sc)
{
if (!sc->sc_flags.status_suspend) {
return;
}
avr32dci_mod_ctrl(sc, AVR32_CTRL_DEV_REWAKEUP, 0);
/* wait 8 milliseconds */
/* Wait for reset to complete. */
usb_pause_mtx(&sc->sc_bus.bus_mtx, hz / 125);
/* hardware should have cleared RMWKUP bit */
}
static void
avr32dci_set_address(struct avr32dci_softc *sc, uint8_t addr)
{
DPRINTFN(5, "addr=%d\n", addr);
avr32dci_mod_ctrl(sc, AVR32_CTRL_DEV_FADDR_EN | addr, 0);
}
static uint8_t
avr32dci_setup_rx(struct avr32dci_td *td)
{
struct avr32dci_softc *sc;
struct usb_device_request req;
uint16_t count;
uint32_t temp;
/* get pointer to softc */
sc = AVR32_PC2SC(td->pc);
/* check endpoint status */
temp = AVR32_READ_4(sc, AVR32_EPTSTA(td->ep_no));
DPRINTFN(5, "EPTSTA(%u)=0x%08x\n", td->ep_no, temp);
if (!(temp & AVR32_EPTSTA_RX_SETUP)) {
goto not_complete;
}
/* clear did stall */
td->did_stall = 0;
/* get the packet byte count */
count = AVR32_EPTSTA_BYTE_COUNT(temp);
/* verify data length */
if (count != td->remainder) {
DPRINTFN(0, "Invalid SETUP packet "
"length, %d bytes\n", count);
goto not_complete;
}
if (count != sizeof(req)) {
DPRINTFN(0, "Unsupported SETUP packet "
"length, %d bytes\n", count);
goto not_complete;
}
/* receive data */
memcpy(&req, sc->physdata, sizeof(req));
/* copy data into real buffer */
usbd_copy_in(td->pc, 0, &req, sizeof(req));
td->offset = sizeof(req);
td->remainder = 0;
/* sneak peek the set address */
if ((req.bmRequestType == UT_WRITE_DEVICE) &&
(req.bRequest == UR_SET_ADDRESS)) {
sc->sc_dv_addr = req.wValue[0] & 0x7F;
/* must write address before ZLP */
avr32dci_mod_ctrl(sc, 0, AVR32_CTRL_DEV_FADDR_EN |
AVR32_CTRL_DEV_ADDR);
avr32dci_mod_ctrl(sc, sc->sc_dv_addr, 0);
} else {
sc->sc_dv_addr = 0xFF;
}
/* clear SETUP packet interrupt */
AVR32_WRITE_4(sc, AVR32_EPTCLRSTA(td->ep_no), AVR32_EPTSTA_RX_SETUP);
return (0); /* complete */
not_complete:
if (temp & AVR32_EPTSTA_RX_SETUP) {
/* clear SETUP packet interrupt */
AVR32_WRITE_4(sc, AVR32_EPTCLRSTA(td->ep_no), AVR32_EPTSTA_RX_SETUP);
}
/* abort any ongoing transfer */
if (!td->did_stall) {
DPRINTFN(5, "stalling\n");
AVR32_WRITE_4(sc, AVR32_EPTSETSTA(td->ep_no),
AVR32_EPTSTA_FRCESTALL);
td->did_stall = 1;
}
return (1); /* not complete */
}
static uint8_t
avr32dci_data_rx(struct avr32dci_td *td)
{
struct avr32dci_softc *sc;
struct usb_page_search buf_res;
uint16_t count;
uint32_t temp;
uint8_t to;
uint8_t got_short;
to = 4; /* don't loop forever! */
got_short = 0;
/* get pointer to softc */
sc = AVR32_PC2SC(td->pc);
repeat:
/* check if any of the FIFO banks have data */
/* check endpoint status */
temp = AVR32_READ_4(sc, AVR32_EPTSTA(td->ep_no));
DPRINTFN(5, "EPTSTA(%u)=0x%08x\n", td->ep_no, temp);
if (temp & AVR32_EPTSTA_RX_SETUP) {
if (td->remainder == 0) {
/*
* We are actually complete and have
* received the next SETUP
*/
DPRINTFN(5, "faking complete\n");
return (0); /* complete */
}
/*
* USB Host Aborted the transfer.
*/
td->error = 1;
return (0); /* complete */
}
/* check status */
if (!(temp & AVR32_EPTSTA_RX_BK_RDY)) {
/* no data */
goto not_complete;
}
/* get the packet byte count */
count = AVR32_EPTSTA_BYTE_COUNT(temp);
/* verify the packet byte count */
if (count != td->max_packet_size) {
if (count < td->max_packet_size) {
/* we have a short packet */
td->short_pkt = 1;
got_short = 1;
} else {
/* invalid USB packet */
td->error = 1;
return (0); /* we are complete */
}
}
/* verify the packet byte count */
if (count > td->remainder) {
/* invalid USB packet */
td->error = 1;
return (0); /* we are complete */
}
while (count > 0) {
usbd_get_page(td->pc, td->offset, &buf_res);
/* get correct length */
if (buf_res.length > count) {
buf_res.length = count;
}
/* receive data */
memcpy(buf_res.buffer, sc->physdata +
(AVR32_EPTSTA_CURRENT_BANK(temp) << td->bank_shift) +
(td->ep_no << 16) + (td->offset % td->max_packet_size), buf_res.length);
/* update counters */
count -= buf_res.length;
td->offset += buf_res.length;
td->remainder -= buf_res.length;
}
/* clear OUT packet interrupt */
AVR32_WRITE_4(sc, AVR32_EPTCLRSTA(td->ep_no), AVR32_EPTSTA_RX_BK_RDY);
/* 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 */
}
if (--to) {
goto repeat;
}
not_complete:
return (1); /* not complete */
}
static uint8_t
avr32dci_data_tx(struct avr32dci_td *td)
{
struct avr32dci_softc *sc;
struct usb_page_search buf_res;
uint16_t count;
uint8_t to;
uint32_t temp;
to = 4; /* don't loop forever! */
/* get pointer to softc */
sc = AVR32_PC2SC(td->pc);
repeat:
/* check endpoint status */
temp = AVR32_READ_4(sc, AVR32_EPTSTA(td->ep_no));
DPRINTFN(5, "EPTSTA(%u)=0x%08x\n", td->ep_no, temp);
if (temp & AVR32_EPTSTA_RX_SETUP) {
/*
* The current transfer was aborted
* by the USB Host
*/
td->error = 1;
return (0); /* complete */
}
if (temp & AVR32_EPTSTA_TX_PK_RDY) {
/* cannot write any data - all banks are busy */
goto not_complete;
}
count = td->max_packet_size;
if (td->remainder < count) {
/* we have a short packet */
td->short_pkt = 1;
count = td->remainder;
}
while (count > 0) {
usbd_get_page(td->pc, td->offset, &buf_res);
/* get correct length */
if (buf_res.length > count) {
buf_res.length = count;
}
/* transmit data */
memcpy(sc->physdata +
(AVR32_EPTSTA_CURRENT_BANK(temp) << td->bank_shift) +
(td->ep_no << 16) + (td->offset % td->max_packet_size),
buf_res.buffer, buf_res.length);
/* update counters */
count -= buf_res.length;
td->offset += buf_res.length;
td->remainder -= buf_res.length;
}
/* allocate FIFO bank */
AVR32_WRITE_4(sc, AVR32_EPTCTL(td->ep_no), AVR32_EPTCTL_TX_PK_RDY);
/* check remainder */
if (td->remainder == 0) {
if (td->short_pkt) {
return (0); /* complete */
}
/* else we need to transmit a short packet */
}
if (--to) {
goto repeat;
}
not_complete:
return (1); /* not complete */
}
static uint8_t
avr32dci_data_tx_sync(struct avr32dci_td *td)
{
struct avr32dci_softc *sc;
uint32_t temp;
/* get pointer to softc */
sc = AVR32_PC2SC(td->pc);
/* check endpoint status */
temp = AVR32_READ_4(sc, AVR32_EPTSTA(td->ep_no));
DPRINTFN(5, "EPTSTA(%u)=0x%08x\n", td->ep_no, temp);
if (temp & AVR32_EPTSTA_RX_SETUP) {
DPRINTFN(5, "faking complete\n");
/* Race condition */
return (0); /* complete */
}
/*
* The control endpoint has only got one bank, so if that bank
* is free the packet has been transferred!
*/
if (AVR32_EPTSTA_BUSY_BANK_STA(temp) != 0) {
/* cannot write any data - a bank is busy */
goto not_complete;
}
if (sc->sc_dv_addr != 0xFF) {
/* set new address */
avr32dci_set_address(sc, sc->sc_dv_addr);
}
return (0); /* complete */
not_complete:
return (1); /* not complete */
}
static uint8_t
avr32dci_xfer_do_fifo(struct usb_xfer *xfer)
{
struct avr32dci_td *td;
DPRINTFN(9, "\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) {
goto done;
} else if (td->remainder > 0) {
/*
* We had a short transfer. If there is no alternate
* next, stop processing !
*/
if (!td->alt_next) {
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 */
avr32dci_standard_done(xfer);
return (0); /* complete */
}
static void
avr32dci_interrupt_poll(struct avr32dci_softc *sc)
{
struct usb_xfer *xfer;
repeat:
TAILQ_FOREACH(xfer, &sc->sc_bus.intr_q.head, wait_entry) {
if (!avr32dci_xfer_do_fifo(xfer)) {
/* queue has been modified */
goto repeat;
}
}
}
void
avr32dci_vbus_interrupt(struct avr32dci_softc *sc, uint8_t is_on)
{
DPRINTFN(5, "vbus = %u\n", is_on);
if (is_on) {
if (!sc->sc_flags.status_vbus) {
sc->sc_flags.status_vbus = 1;
/* complete root HUB interrupt endpoint */
avr32dci_root_intr(sc);
}
} else {
if (sc->sc_flags.status_vbus) {
sc->sc_flags.status_vbus = 0;
sc->sc_flags.status_bus_reset = 0;
sc->sc_flags.status_suspend = 0;
sc->sc_flags.change_suspend = 0;
sc->sc_flags.change_connect = 1;
/* complete root HUB interrupt endpoint */
avr32dci_root_intr(sc);
}
}
}
void
avr32dci_interrupt(struct avr32dci_softc *sc)
{
uint32_t status;
USB_BUS_LOCK(&sc->sc_bus);
/* read interrupt status */
status = AVR32_READ_4(sc, AVR32_INTSTA);
/* clear all set interrupts */
AVR32_WRITE_4(sc, AVR32_CLRINT, status);
DPRINTFN(14, "INTSTA=0x%08x\n", status);
/* check for any bus state change interrupts */
if (status & AVR32_INT_ENDRESET) {
DPRINTFN(5, "end of reset\n");
/* set correct state */
sc->sc_flags.status_bus_reset = 1;
sc->sc_flags.status_suspend = 0;
sc->sc_flags.change_suspend = 0;
sc->sc_flags.change_connect = 1;
/* disable resume interrupt */
avr32dci_mod_ien(sc, AVR32_INT_DET_SUSPD |
AVR32_INT_ENDRESET, AVR32_INT_WAKE_UP);
/* complete root HUB interrupt endpoint */
avr32dci_root_intr(sc);
}
/*
* If resume and suspend is set at the same time we interpret
* that like RESUME. Resume is set when there is at least 3
* milliseconds of inactivity on the USB BUS.
*/
if (status & AVR32_INT_WAKE_UP) {
DPRINTFN(5, "resume interrupt\n");
if (sc->sc_flags.status_suspend) {
/* update status bits */
sc->sc_flags.status_suspend = 0;
sc->sc_flags.change_suspend = 1;
/* disable resume interrupt */
avr32dci_mod_ien(sc, AVR32_INT_DET_SUSPD |
AVR32_INT_ENDRESET, AVR32_INT_WAKE_UP);
/* complete root HUB interrupt endpoint */
avr32dci_root_intr(sc);
}
} else if (status & AVR32_INT_DET_SUSPD) {
DPRINTFN(5, "suspend interrupt\n");
if (!sc->sc_flags.status_suspend) {
/* update status bits */
sc->sc_flags.status_suspend = 1;
sc->sc_flags.change_suspend = 1;
/* disable suspend interrupt */
avr32dci_mod_ien(sc, AVR32_INT_WAKE_UP |
AVR32_INT_ENDRESET, AVR32_INT_DET_SUSPD);
/* complete root HUB interrupt endpoint */
avr32dci_root_intr(sc);
}
}
/* check for any endpoint interrupts */
if (status & -AVR32_INT_EPT_INT(0)) {
DPRINTFN(5, "real endpoint interrupt\n");
avr32dci_interrupt_poll(sc);
}
USB_BUS_UNLOCK(&sc->sc_bus);
}
static void
avr32dci_setup_standard_chain_sub(struct avr32dci_std_temp *temp)
{
struct avr32dci_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 = 0;
td->did_stall = temp->did_stall;
td->short_pkt = temp->short_pkt;
td->alt_next = temp->setup_alt_next;
}
static void
avr32dci_setup_standard_chain(struct usb_xfer *xfer)
{
struct avr32dci_std_temp temp;
struct avr32dci_softc *sc;
struct avr32dci_td *td;
uint32_t x;
uint8_t ep_no;
uint8_t need_sync;
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));
temp.max_frame_size = xfer->max_frame_size;
td = xfer->td_start[0];
xfer->td_transfer_first = td;
xfer->td_transfer_cache = td;
/* setup temp */
temp.pc = NULL;
temp.td = NULL;
temp.td_next = xfer->td_start[0];
temp.offset = 0;
temp.setup_alt_next = xfer->flags_int.short_frames_ok;
temp.did_stall = !xfer->flags_int.control_stall;
sc = AVR32_BUS2SC(xfer->xroot->bus);
ep_no = (xfer->endpointno & UE_ADDR);
/* check if we should prepend a setup message */
if (xfer->flags_int.control_xfr) {
if (xfer->flags_int.control_hdr) {
temp.func = &avr32dci_setup_rx;
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;
}
avr32dci_setup_standard_chain_sub(&temp);
}
x = 1;
} else {
x = 0;
}
if (x != xfer->nframes) {
if (xfer->endpointno & UE_DIR_IN) {
temp.func = &avr32dci_data_tx;
need_sync = 1;
} else {
temp.func = &avr32dci_data_rx;
need_sync = 0;
}
/* setup "pc" pointer */
temp.pc = xfer->frbuffers + x;
} else {
need_sync = 0;
}
while (x != xfer->nframes) {
/* DATA0 / DATA1 message */
temp.len = xfer->frlengths[x];
x++;
if (x == xfer->nframes) {
if (xfer->flags_int.control_xfr) {
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;
}
avr32dci_setup_standard_chain_sub(&temp);
if (xfer->flags_int.isochronous_xfr) {
temp.offset += temp.len;
} else {
/* get next Page Cache pointer */
temp.pc = xfer->frbuffers + x;
}
}
if (xfer->flags_int.control_xfr) {
/* always setup a valid "pc" pointer for status and sync */
temp.pc = xfer->frbuffers + 0;
temp.len = 0;
temp.short_pkt = 0;
temp.setup_alt_next = 0;
/* check if we need to sync */
if (need_sync) {
/* we need a SYNC point after TX */
temp.func = &avr32dci_data_tx_sync;
avr32dci_setup_standard_chain_sub(&temp);
}
/* check if we should append a status stage */
if (!xfer->flags_int.control_act) {
/*
* Send a DATA1 message and invert the current
* endpoint direction.
*/
if (xfer->endpointno & UE_DIR_IN) {
temp.func = &avr32dci_data_rx;
need_sync = 0;
} else {
temp.func = &avr32dci_data_tx;
need_sync = 1;
}
avr32dci_setup_standard_chain_sub(&temp);
if (need_sync) {
/* we need a SYNC point after TX */
temp.func = &avr32dci_data_tx_sync;
avr32dci_setup_standard_chain_sub(&temp);
}
}
}
/* must have at least one frame! */
td = temp.td;
xfer->td_transfer_last = td;
}
static void
avr32dci_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 */
avr32dci_device_done(xfer, USB_ERR_TIMEOUT);
}
static void
avr32dci_start_standard_chain(struct usb_xfer *xfer)
{
DPRINTFN(9, "\n");
/* poll one time - will turn on interrupts */
if (avr32dci_xfer_do_fifo(xfer)) {
uint8_t ep_no = xfer->endpointno & UE_ADDR;
struct avr32dci_softc *sc = AVR32_BUS2SC(xfer->xroot->bus);
avr32dci_mod_ien(sc, AVR32_INT_EPT_INT(ep_no), 0);
/* 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,
&avr32dci_timeout, xfer->timeout);
}
}
}
static void
avr32dci_root_intr(struct avr32dci_softc *sc)
{
DPRINTFN(9, "\n");
USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED);
/* set port bit */
sc->sc_hub_idata[0] = 0x02; /* we only have one port */
uhub_root_intr(&sc->sc_bus, sc->sc_hub_idata,
sizeof(sc->sc_hub_idata));
}
static usb_error_t
avr32dci_standard_done_sub(struct usb_xfer *xfer)
{
struct avr32dci_td *td;
uint32_t len;
uint8_t error;
DPRINTFN(9, "\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 = 1;
} else {
xfer->frlengths[xfer->aframes] -= len;
}
}
/* Check for transfer error */
if (td->error) {
/* the transfer is finished */
error = 1;
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 ?
USB_ERR_STALLED : USB_ERR_NORMAL_COMPLETION);
}
static void
avr32dci_standard_done(struct usb_xfer *xfer)
{
usb_error_t err = 0;
DPRINTFN(13, "xfer=%p pipe=%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) {
err = avr32dci_standard_done_sub(xfer);
}
xfer->aframes = 1;
if (xfer->td_transfer_cache == NULL) {
goto done;
}
}
while (xfer->aframes != xfer->nframes) {
err = avr32dci_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) {
err = avr32dci_standard_done_sub(xfer);
}
done:
avr32dci_device_done(xfer, err);
}
/*------------------------------------------------------------------------*
* avr32dci_device_done
*
* NOTE: this function can be called more than one time on the
* same USB transfer!
*------------------------------------------------------------------------*/
static void
avr32dci_device_done(struct usb_xfer *xfer, usb_error_t error)
{
struct avr32dci_softc *sc = AVR32_BUS2SC(xfer->xroot->bus);
uint8_t ep_no;
USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED);
DPRINTFN(9, "xfer=%p, pipe=%p, error=%d\n",
xfer, xfer->endpoint, error);
if (xfer->flags_int.usb_mode == USB_MODE_DEVICE) {
ep_no = (xfer->endpointno & UE_ADDR);
/* disable endpoint interrupt */
avr32dci_mod_ien(sc, 0, AVR32_INT_EPT_INT(ep_no));
DPRINTFN(15, "disabled interrupts!\n");
}
/* dequeue transfer and start next transfer */
usbd_transfer_done(xfer, error);
}
static void
avr32dci_xfer_stall(struct usb_xfer *xfer)
{
avr32dci_device_done(xfer, USB_ERR_STALLED);
}
static void
avr32dci_set_stall(struct usb_device *udev,
struct usb_endpoint *pipe, uint8_t *did_stall)
{
struct avr32dci_softc *sc;
uint8_t ep_no;
USB_BUS_LOCK_ASSERT(udev->bus, MA_OWNED);
DPRINTFN(5, "pipe=%p\n", pipe);
sc = AVR32_BUS2SC(udev->bus);
/* get endpoint number */
ep_no = (pipe->edesc->bEndpointAddress & UE_ADDR);
/* set stall */
AVR32_WRITE_4(sc, AVR32_EPTSETSTA(ep_no), AVR32_EPTSTA_FRCESTALL);
}
static void
avr32dci_clear_stall_sub(struct avr32dci_softc *sc, uint8_t ep_no,
uint8_t ep_type, uint8_t ep_dir)
{
const struct usb_hw_ep_profile *pf;
uint32_t temp;
uint32_t epsize;
uint8_t n;
if (ep_type == UE_CONTROL) {
/* clearing stall is not needed */
return;
}
/* set endpoint reset */
AVR32_WRITE_4(sc, AVR32_EPTRST, AVR32_EPTRST_MASK(ep_no));
/* set stall */
AVR32_WRITE_4(sc, AVR32_EPTSETSTA(ep_no), AVR32_EPTSTA_FRCESTALL);
/* reset data toggle */
AVR32_WRITE_4(sc, AVR32_EPTCLRSTA(ep_no), AVR32_EPTSTA_TOGGLESQ);
/* clear stall */
AVR32_WRITE_4(sc, AVR32_EPTCLRSTA(ep_no), AVR32_EPTSTA_FRCESTALL);
if (ep_type == UE_BULK) {
temp = AVR32_EPTCFG_TYPE_BULK;
} else if (ep_type == UE_INTERRUPT) {
temp = AVR32_EPTCFG_TYPE_INTR;
} else {
temp = AVR32_EPTCFG_TYPE_ISOC |
AVR32_EPTCFG_NB_TRANS(1);
}
if (ep_dir & UE_DIR_IN) {
temp |= AVR32_EPTCFG_EPDIR_IN;
}
avr32dci_get_hw_ep_profile(NULL, &pf, ep_no);
/* compute endpoint size (use maximum) */
epsize = pf->max_in_frame_size | pf->max_out_frame_size;
n = 0;
while ((epsize /= 2))
n++;
temp |= AVR32_EPTCFG_EPSIZE(n);
/* use the maximum number of banks supported */
if (ep_no < 1)
temp |= AVR32_EPTCFG_NBANK(1);
else if (ep_no < 3)
temp |= AVR32_EPTCFG_NBANK(2);
else
temp |= AVR32_EPTCFG_NBANK(3);
AVR32_WRITE_4(sc, AVR32_EPTCFG(ep_no), temp);
temp = AVR32_READ_4(sc, AVR32_EPTCFG(ep_no));
if (!(temp & AVR32_EPTCFG_EPT_MAPD)) {
device_printf(sc->sc_bus.bdev, "Chip rejected configuration\n");
} else {
AVR32_WRITE_4(sc, AVR32_EPTCTLENB(ep_no),
AVR32_EPTCTL_EPT_ENABL);
}
}
static void
avr32dci_clear_stall(struct usb_device *udev, struct usb_endpoint *pipe)
{
struct avr32dci_softc *sc;
struct usb_endpoint_descriptor *ed;
DPRINTFN(5, "pipe=%p\n", pipe);
USB_BUS_LOCK_ASSERT(udev->bus, MA_OWNED);
/* check mode */
if (udev->flags.usb_mode != USB_MODE_DEVICE) {
/* not supported */
return;
}
/* get softc */
sc = AVR32_BUS2SC(udev->bus);
/* get endpoint descriptor */
ed = pipe->edesc;
/* reset endpoint */
avr32dci_clear_stall_sub(sc,
(ed->bEndpointAddress & UE_ADDR),
(ed->bmAttributes & UE_XFERTYPE),
(ed->bEndpointAddress & (UE_DIR_IN | UE_DIR_OUT)));
}
usb_error_t
avr32dci_init(struct avr32dci_softc *sc)
{
uint8_t n;
DPRINTF("start\n");
/* set up the bus structure */
sc->sc_bus.usbrev = USB_REV_1_1;
sc->sc_bus.methods = &avr32dci_bus_methods;
USB_BUS_LOCK(&sc->sc_bus);
/* make sure USB is enabled */
avr32dci_mod_ctrl(sc, AVR32_CTRL_DEV_EN_USBA, 0);
/* turn on clocks */
(sc->sc_clocks_on) (&sc->sc_bus);
/* make sure device is re-enumerated */
avr32dci_mod_ctrl(sc, AVR32_CTRL_DEV_DETACH, 0);
/* wait a little for things to stabilise */
usb_pause_mtx(&sc->sc_bus.bus_mtx, hz / 20);
/* disable interrupts */
avr32dci_mod_ien(sc, 0, 0xFFFFFFFF);
/* enable interrupts */
avr32dci_mod_ien(sc, AVR32_INT_DET_SUSPD |
AVR32_INT_ENDRESET, 0);
/* reset all endpoints */
AVR32_WRITE_4(sc, AVR32_EPTRST, (1 << AVR32_EP_MAX) - 1);
/* disable all endpoints */
for (n = 0; n != AVR32_EP_MAX; n++) {
/* disable endpoint */
AVR32_WRITE_4(sc, AVR32_EPTCTLDIS(n), AVR32_EPTCTL_EPT_ENABL);
}
/* turn off clocks */
avr32dci_clocks_off(sc);
USB_BUS_UNLOCK(&sc->sc_bus);
/* catch any lost interrupts */
avr32dci_do_poll(&sc->sc_bus);
return (0); /* success */
}
void
avr32dci_uninit(struct avr32dci_softc *sc)
{
uint8_t n;
USB_BUS_LOCK(&sc->sc_bus);
/* turn on clocks */
(sc->sc_clocks_on) (&sc->sc_bus);
/* disable interrupts */
avr32dci_mod_ien(sc, 0, 0xFFFFFFFF);
/* reset all endpoints */
AVR32_WRITE_4(sc, AVR32_EPTRST, (1 << AVR32_EP_MAX) - 1);
/* disable all endpoints */
for (n = 0; n != AVR32_EP_MAX; n++) {
/* disable endpoint */
AVR32_WRITE_4(sc, AVR32_EPTCTLDIS(n), AVR32_EPTCTL_EPT_ENABL);
}
sc->sc_flags.port_powered = 0;
sc->sc_flags.status_vbus = 0;
sc->sc_flags.status_bus_reset = 0;
sc->sc_flags.status_suspend = 0;
sc->sc_flags.change_suspend = 0;
sc->sc_flags.change_connect = 1;
avr32dci_pull_down(sc);
avr32dci_clocks_off(sc);
USB_BUS_UNLOCK(&sc->sc_bus);
}
static void
avr32dci_suspend(struct avr32dci_softc *sc)
{
/* TODO */
}
static void
avr32dci_resume(struct avr32dci_softc *sc)
{
/* TODO */
}
static void
avr32dci_do_poll(struct usb_bus *bus)
{
struct avr32dci_softc *sc = AVR32_BUS2SC(bus);
USB_BUS_LOCK(&sc->sc_bus);
avr32dci_interrupt_poll(sc);
USB_BUS_UNLOCK(&sc->sc_bus);
}
/*------------------------------------------------------------------------*
* at91dci bulk support
* at91dci control support
* at91dci interrupt support
*------------------------------------------------------------------------*/
static void
avr32dci_device_non_isoc_open(struct usb_xfer *xfer)
{
return;
}
static void
avr32dci_device_non_isoc_close(struct usb_xfer *xfer)
{
avr32dci_device_done(xfer, USB_ERR_CANCELLED);
}
static void
avr32dci_device_non_isoc_enter(struct usb_xfer *xfer)
{
return;
}
static void
avr32dci_device_non_isoc_start(struct usb_xfer *xfer)
{
/* setup TDs */
avr32dci_setup_standard_chain(xfer);
avr32dci_start_standard_chain(xfer);
}
struct usb_pipe_methods avr32dci_device_non_isoc_methods =
{
.open = avr32dci_device_non_isoc_open,
.close = avr32dci_device_non_isoc_close,
.enter = avr32dci_device_non_isoc_enter,
.start = avr32dci_device_non_isoc_start,
};
/*------------------------------------------------------------------------*
* at91dci full speed isochronous support
*------------------------------------------------------------------------*/
static void
avr32dci_device_isoc_fs_open(struct usb_xfer *xfer)
{
return;
}
static void
avr32dci_device_isoc_fs_close(struct usb_xfer *xfer)
{
avr32dci_device_done(xfer, USB_ERR_CANCELLED);
}
static void
avr32dci_device_isoc_fs_enter(struct usb_xfer *xfer)
{
struct avr32dci_softc *sc = AVR32_BUS2SC(xfer->xroot->bus);
uint32_t temp;
uint32_t nframes;
uint8_t ep_no;
DPRINTFN(6, "xfer=%p next=%d nframes=%d\n",
xfer, xfer->endpoint->isoc_next, xfer->nframes);
/* get the current frame index */
ep_no = xfer->endpointno & UE_ADDR;
nframes = (AVR32_READ_4(sc, AVR32_FNUM) / 8);
nframes &= AVR32_FRAME_MASK;
/*
* check if the frame index is within the window where the frames
* will be inserted
*/
temp = (nframes - xfer->endpoint->isoc_next) & AVR32_FRAME_MASK;
if ((xfer->endpoint->is_synced == 0) ||
(temp < xfer->nframes)) {
/*
* 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 = (nframes + 3) & AVR32_FRAME_MASK;
xfer->endpoint->is_synced = 1;
DPRINTFN(3, "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 - nframes) & AVR32_FRAME_MASK;
/*
* pre-compute when the isochronous transfer will be finished:
*/
xfer->isoc_time_complete =
usb_isoc_time_expand(&sc->sc_bus, nframes) + temp +
xfer->nframes;
/* compute frame number for next insertion */
xfer->endpoint->isoc_next += xfer->nframes;
/* setup TDs */
avr32dci_setup_standard_chain(xfer);
}
static void
avr32dci_device_isoc_fs_start(struct usb_xfer *xfer)
{
/* start TD chain */
avr32dci_start_standard_chain(xfer);
}
struct usb_pipe_methods avr32dci_device_isoc_fs_methods =
{
.open = avr32dci_device_isoc_fs_open,
.close = avr32dci_device_isoc_fs_close,
.enter = avr32dci_device_isoc_fs_enter,
.start = avr32dci_device_isoc_fs_start,
};
/*------------------------------------------------------------------------*
* at91dci root control support
*------------------------------------------------------------------------*
* Simulate a hardware HUB by handling all the necessary requests.
*------------------------------------------------------------------------*/
static const struct usb_device_descriptor avr32dci_devd = {
.bLength = sizeof(struct usb_device_descriptor),
.bDescriptorType = UDESC_DEVICE,
.bcdUSB = {0x00, 0x02},
.bDeviceClass = UDCLASS_HUB,
.bDeviceSubClass = UDSUBCLASS_HUB,
.bDeviceProtocol = UDPROTO_HSHUBSTT,
.bMaxPacketSize = 64,
.bcdDevice = {0x00, 0x01},
.iManufacturer = 1,
.iProduct = 2,
.bNumConfigurations = 1,
};
static const struct usb_device_qualifier avr32dci_odevd = {
.bLength = sizeof(struct usb_device_qualifier),
.bDescriptorType = UDESC_DEVICE_QUALIFIER,
.bcdUSB = {0x00, 0x02},
.bDeviceClass = UDCLASS_HUB,
.bDeviceSubClass = UDSUBCLASS_HUB,
.bDeviceProtocol = UDPROTO_FSHUB,
.bMaxPacketSize0 = 0,
.bNumConfigurations = 0,
};
static const struct avr32dci_config_desc avr32dci_confd = {
.confd = {
.bLength = sizeof(struct usb_config_descriptor),
.bDescriptorType = UDESC_CONFIG,
.wTotalLength[0] = sizeof(avr32dci_confd),
.bNumInterface = 1,
.bConfigurationValue = 1,
.iConfiguration = 0,
.bmAttributes = UC_SELF_POWERED,
.bMaxPower = 0,
},
.ifcd = {
.bLength = sizeof(struct usb_interface_descriptor),
.bDescriptorType = UDESC_INTERFACE,
.bNumEndpoints = 1,
.bInterfaceClass = UICLASS_HUB,
.bInterfaceSubClass = UISUBCLASS_HUB,
.bInterfaceProtocol = 0,
},
.endpd = {
.bLength = sizeof(struct usb_endpoint_descriptor),
.bDescriptorType = UDESC_ENDPOINT,
.bEndpointAddress = (UE_DIR_IN | AVR32_INTR_ENDPT),
.bmAttributes = UE_INTERRUPT,
.wMaxPacketSize[0] = 8,
.bInterval = 255,
},
};
#define HSETW(ptr, val) ptr = { (uint8_t)(val), (uint8_t)((val) >> 8) }
static const struct usb_hub_descriptor_min avr32dci_hubd = {
.bDescLength = sizeof(avr32dci_hubd),
.bDescriptorType = UDESC_HUB,
.bNbrPorts = 1,
HSETW(.wHubCharacteristics, (UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL)),
.bPwrOn2PwrGood = 50,
.bHubContrCurrent = 0,
.DeviceRemovable = {0}, /* port is removable */
};
#define STRING_LANG \
0x09, 0x04, /* American English */
#define STRING_VENDOR \
'A', 0, 'V', 0, 'R', 0, '3', 0, '2', 0
#define STRING_PRODUCT \
'D', 0, 'C', 0, 'I', 0, ' ', 0, 'R', 0, \
'o', 0, 'o', 0, 't', 0, ' ', 0, 'H', 0, \
'U', 0, 'B', 0,
USB_MAKE_STRING_DESC(STRING_LANG, avr32dci_langtab);
USB_MAKE_STRING_DESC(STRING_VENDOR, avr32dci_vendor);
USB_MAKE_STRING_DESC(STRING_PRODUCT, avr32dci_product);
static usb_error_t
avr32dci_roothub_exec(struct usb_device *udev,
struct usb_device_request *req, const void **pptr, uint16_t *plength)
{
struct avr32dci_softc *sc = AVR32_BUS2SC(udev->bus);
const void *ptr;
uint16_t len;
uint16_t value;
uint16_t index;
uint32_t temp;
usb_error_t err;
USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED);
/* buffer reset */
ptr = (const void *)&sc->sc_hub_temp;
len = 0;
err = 0;
value = UGETW(req->wValue);
index = UGETW(req->wIndex);
/* demultiplex the control request */
switch (req->bmRequestType) {
case UT_READ_DEVICE:
switch (req->bRequest) {
case UR_GET_DESCRIPTOR:
goto tr_handle_get_descriptor;
case UR_GET_CONFIG:
goto tr_handle_get_config;
case UR_GET_STATUS:
goto tr_handle_get_status;
default:
goto tr_stalled;
}
break;
case UT_WRITE_DEVICE:
switch (req->bRequest) {
case UR_SET_ADDRESS:
goto tr_handle_set_address;
case UR_SET_CONFIG:
goto tr_handle_set_config;
case UR_CLEAR_FEATURE:
goto tr_valid; /* nop */
case UR_SET_DESCRIPTOR:
goto tr_valid; /* nop */
case UR_SET_FEATURE:
default:
goto tr_stalled;
}
break;
case UT_WRITE_ENDPOINT:
switch (req->bRequest) {
case UR_CLEAR_FEATURE:
switch (UGETW(req->wValue)) {
case UF_ENDPOINT_HALT:
goto tr_handle_clear_halt;
case UF_DEVICE_REMOTE_WAKEUP:
goto tr_handle_clear_wakeup;
default:
goto tr_stalled;
}
break;
case UR_SET_FEATURE:
switch (UGETW(req->wValue)) {
case UF_ENDPOINT_HALT:
goto tr_handle_set_halt;
case UF_DEVICE_REMOTE_WAKEUP:
goto tr_handle_set_wakeup;
default:
goto tr_stalled;
}
break;
case UR_SYNCH_FRAME:
goto tr_valid; /* nop */
default:
goto tr_stalled;
}
break;
case UT_READ_ENDPOINT:
switch (req->bRequest) {
case UR_GET_STATUS:
goto tr_handle_get_ep_status;
default:
goto tr_stalled;
}
break;
case UT_WRITE_INTERFACE:
switch (req->bRequest) {
case UR_SET_INTERFACE:
goto tr_handle_set_interface;
case UR_CLEAR_FEATURE:
goto tr_valid; /* nop */
case UR_SET_FEATURE:
default:
goto tr_stalled;
}
break;
case UT_READ_INTERFACE:
switch (req->bRequest) {
case UR_GET_INTERFACE:
goto tr_handle_get_interface;
case UR_GET_STATUS:
goto tr_handle_get_iface_status;
default:
goto tr_stalled;
}
break;
case UT_WRITE_CLASS_INTERFACE:
case UT_WRITE_VENDOR_INTERFACE:
/* XXX forward */
break;
case UT_READ_CLASS_INTERFACE:
case UT_READ_VENDOR_INTERFACE:
/* XXX forward */
break;
case UT_WRITE_CLASS_DEVICE:
switch (req->bRequest) {
case UR_CLEAR_FEATURE:
goto tr_valid;
case UR_SET_DESCRIPTOR:
case UR_SET_FEATURE:
break;
default:
goto tr_stalled;
}
break;
case UT_WRITE_CLASS_OTHER:
switch (req->bRequest) {
case UR_CLEAR_FEATURE:
goto tr_handle_clear_port_feature;
case UR_SET_FEATURE:
goto tr_handle_set_port_feature;
case UR_CLEAR_TT_BUFFER:
case UR_RESET_TT:
case UR_STOP_TT:
goto tr_valid;
default:
goto tr_stalled;
}
break;
case UT_READ_CLASS_OTHER:
switch (req->bRequest) {
case UR_GET_TT_STATE:
goto tr_handle_get_tt_state;
case UR_GET_STATUS:
goto tr_handle_get_port_status;
default:
goto tr_stalled;
}
break;
case UT_READ_CLASS_DEVICE:
switch (req->bRequest) {
case UR_GET_DESCRIPTOR:
goto tr_handle_get_class_descriptor;
case UR_GET_STATUS:
goto tr_handle_get_class_status;
default:
goto tr_stalled;
}
break;
default:
goto tr_stalled;
}
goto tr_valid;
tr_handle_get_descriptor:
switch (value >> 8) {
case UDESC_DEVICE:
if (value & 0xff) {
goto tr_stalled;
}
len = sizeof(avr32dci_devd);
ptr = (const void *)&avr32dci_devd;
goto tr_valid;
case UDESC_CONFIG:
if (value & 0xff) {
goto tr_stalled;
}
len = sizeof(avr32dci_confd);
ptr = (const void *)&avr32dci_confd;
goto tr_valid;
case UDESC_STRING:
switch (value & 0xff) {
case 0: /* Language table */
len = sizeof(avr32dci_langtab);
ptr = (const void *)&avr32dci_langtab;
goto tr_valid;
case 1: /* Vendor */
len = sizeof(avr32dci_vendor);
ptr = (const void *)&avr32dci_vendor;
goto tr_valid;
case 2: /* Product */
len = sizeof(avr32dci_product);
ptr = (const void *)&avr32dci_product;
goto tr_valid;
default:
break;
}
break;
default:
goto tr_stalled;
}
goto tr_stalled;
tr_handle_get_config:
len = 1;
sc->sc_hub_temp.wValue[0] = sc->sc_conf;
goto tr_valid;
tr_handle_get_status:
len = 2;
USETW(sc->sc_hub_temp.wValue, UDS_SELF_POWERED);
goto tr_valid;
tr_handle_set_address:
if (value & 0xFF00) {
goto tr_stalled;
}
sc->sc_rt_addr = value;
goto tr_valid;
tr_handle_set_config:
if (value >= 2) {
goto tr_stalled;
}
sc->sc_conf = value;
goto tr_valid;
tr_handle_get_interface:
len = 1;
sc->sc_hub_temp.wValue[0] = 0;
goto tr_valid;
tr_handle_get_tt_state:
tr_handle_get_class_status:
tr_handle_get_iface_status:
tr_handle_get_ep_status:
len = 2;
USETW(sc->sc_hub_temp.wValue, 0);
goto tr_valid;
tr_handle_set_halt:
tr_handle_set_interface:
tr_handle_set_wakeup:
tr_handle_clear_wakeup:
tr_handle_clear_halt:
goto tr_valid;
tr_handle_clear_port_feature:
if (index != 1) {
goto tr_stalled;
}
DPRINTFN(9, "UR_CLEAR_PORT_FEATURE on port %d\n", index);
switch (value) {
case UHF_PORT_SUSPEND:
avr32dci_wakeup_peer(sc);
break;
case UHF_PORT_ENABLE:
sc->sc_flags.port_enabled = 0;
break;
case UHF_PORT_TEST:
case UHF_PORT_INDICATOR:
case UHF_C_PORT_ENABLE:
case UHF_C_PORT_OVER_CURRENT:
case UHF_C_PORT_RESET:
/* nops */
break;
case UHF_PORT_POWER:
sc->sc_flags.port_powered = 0;
avr32dci_pull_down(sc);
avr32dci_clocks_off(sc);
break;
case UHF_C_PORT_CONNECTION:
/* clear connect change flag */
sc->sc_flags.change_connect = 0;
if (!sc->sc_flags.status_bus_reset) {
/* we are not connected */
break;
}
/* configure the control endpoint */
/* set endpoint reset */
AVR32_WRITE_4(sc, AVR32_EPTRST, AVR32_EPTRST_MASK(0));
/* set stall */
AVR32_WRITE_4(sc, AVR32_EPTSETSTA(0), AVR32_EPTSTA_FRCESTALL);
/* reset data toggle */
AVR32_WRITE_4(sc, AVR32_EPTCLRSTA(0), AVR32_EPTSTA_TOGGLESQ);
/* clear stall */
AVR32_WRITE_4(sc, AVR32_EPTCLRSTA(0), AVR32_EPTSTA_FRCESTALL);
/* configure */
AVR32_WRITE_4(sc, AVR32_EPTCFG(0), AVR32_EPTCFG_TYPE_CTRL |
AVR32_EPTCFG_NBANK(1) | AVR32_EPTCFG_EPSIZE(6));
temp = AVR32_READ_4(sc, AVR32_EPTCFG(0));
if (!(temp & AVR32_EPTCFG_EPT_MAPD)) {
device_printf(sc->sc_bus.bdev,
"Chip rejected configuration\n");
} else {
AVR32_WRITE_4(sc, AVR32_EPTCTLENB(0),
AVR32_EPTCTL_EPT_ENABL);
}
break;
case UHF_C_PORT_SUSPEND:
sc->sc_flags.change_suspend = 0;
break;
default:
err = USB_ERR_IOERROR;
goto done;
}
goto tr_valid;
tr_handle_set_port_feature:
if (index != 1) {
goto tr_stalled;
}
DPRINTFN(9, "UR_SET_PORT_FEATURE\n");
switch (value) {
case UHF_PORT_ENABLE:
sc->sc_flags.port_enabled = 1;
break;
case UHF_PORT_SUSPEND:
case UHF_PORT_RESET:
case UHF_PORT_TEST:
case UHF_PORT_INDICATOR:
/* nops */
break;
case UHF_PORT_POWER:
sc->sc_flags.port_powered = 1;
break;
default:
err = USB_ERR_IOERROR;
goto done;
}
goto tr_valid;
tr_handle_get_port_status:
DPRINTFN(9, "UR_GET_PORT_STATUS\n");
if (index != 1) {
goto tr_stalled;
}
if (sc->sc_flags.status_vbus) {
avr32dci_clocks_on(sc);
avr32dci_pull_up(sc);
} else {
avr32dci_pull_down(sc);
avr32dci_clocks_off(sc);
}
/* Select Device Side Mode */
value = UPS_PORT_MODE_DEVICE;
/* Check for High Speed */
if (AVR32_READ_4(sc, AVR32_INTSTA) & AVR32_INT_SPEED)
value |= UPS_HIGH_SPEED;
if (sc->sc_flags.port_powered) {
value |= UPS_PORT_POWER;
}
if (sc->sc_flags.port_enabled) {
value |= UPS_PORT_ENABLED;
}
if (sc->sc_flags.status_vbus &&
sc->sc_flags.status_bus_reset) {
value |= UPS_CURRENT_CONNECT_STATUS;
}
if (sc->sc_flags.status_suspend) {
value |= UPS_SUSPEND;
}
USETW(sc->sc_hub_temp.ps.wPortStatus, value);
value = 0;
if (sc->sc_flags.change_connect) {
value |= UPS_C_CONNECT_STATUS;
}
if (sc->sc_flags.change_suspend) {
value |= UPS_C_SUSPEND;
}
USETW(sc->sc_hub_temp.ps.wPortChange, value);
len = sizeof(sc->sc_hub_temp.ps);
goto tr_valid;
tr_handle_get_class_descriptor:
if (value & 0xFF) {
goto tr_stalled;
}
ptr = (const void *)&avr32dci_hubd;
len = sizeof(avr32dci_hubd);
goto tr_valid;
tr_stalled:
err = USB_ERR_STALLED;
tr_valid:
done:
*plength = len;
*pptr = ptr;
return (err);
}
static void
avr32dci_xfer_setup(struct usb_setup_params *parm)
{
const struct usb_hw_ep_profile *pf;
struct avr32dci_softc *sc;
struct usb_xfer *xfer;
void *last_obj;
uint32_t ntd;
uint32_t n;
uint8_t ep_no;
sc = AVR32_BUS2SC(parm->udev->bus);
xfer = parm->curr_xfer;
/*
* 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 = 1;
parm->hc_max_frame_size = 0x400;
usbd_transfer_setup_sub(parm);
/*
* compute maximum number of TDs
*/
if ((xfer->endpoint->edesc->bmAttributes & UE_XFERTYPE) == UE_CONTROL) {
ntd = xfer->nframes + 1 /* STATUS */ + 1 /* SYNC 1 */
+ 1 /* SYNC 2 */ ;
} else {
ntd = xfer->nframes + 1 /* SYNC */ ;
}
/*
* check if "usbd_transfer_setup_sub" set an error
*/
if (parm->err)
return;
/*
* allocate transfer descriptors
*/
last_obj = NULL;
/*
* get profile stuff
*/
ep_no = xfer->endpointno & UE_ADDR;
avr32dci_get_hw_ep_profile(parm->udev, &pf, ep_no);
if (pf == NULL) {
/* should not happen */
parm->err = USB_ERR_INVAL;
return;
}
/* align data */
parm->size[0] += ((-parm->size[0]) & (USB_HOST_ALIGN - 1));
for (n = 0; n != ntd; n++) {
struct avr32dci_td *td;
if (parm->buf) {
uint32_t temp;
td = USB_ADD_BYTES(parm->buf, parm->size[0]);
/* init TD */
td->max_packet_size = xfer->max_packet_size;
td->ep_no = ep_no;
temp = pf->max_in_frame_size | pf->max_out_frame_size;
td->bank_shift = 0;
while ((temp /= 2))
td->bank_shift++;
if (pf->support_multi_buffer) {
td->support_multi_buffer = 1;
}
td->obj_next = last_obj;
last_obj = td;
}
parm->size[0] += sizeof(*td);
}
xfer->td_start[0] = last_obj;
}
static void
avr32dci_xfer_unsetup(struct usb_xfer *xfer)
{
return;
}
static void
avr32dci_ep_init(struct usb_device *udev, struct usb_endpoint_descriptor *edesc,
struct usb_endpoint *pipe)
{
struct avr32dci_softc *sc = AVR32_BUS2SC(udev->bus);
DPRINTFN(2, "pipe=%p, addr=%d, endpt=%d, mode=%d (%d,%d)\n",
pipe, udev->address,
edesc->bEndpointAddress, udev->flags.usb_mode,
sc->sc_rt_addr, udev->device_index);
if (udev->device_index != sc->sc_rt_addr) {
if (udev->flags.usb_mode != USB_MODE_DEVICE) {
/* not supported */
return;
}
if ((udev->speed != USB_SPEED_FULL) &&
(udev->speed != USB_SPEED_HIGH)) {
/* not supported */
return;
}
if ((edesc->bmAttributes & UE_XFERTYPE) == UE_ISOCHRONOUS)
pipe->methods = &avr32dci_device_isoc_fs_methods;
else
pipe->methods = &avr32dci_device_non_isoc_methods;
}
}
static void
avr32dci_set_hw_power_sleep(struct usb_bus *bus, uint32_t state)
{
struct avr32dci_softc *sc = AVR32_BUS2SC(bus);
switch (state) {
case USB_HW_POWER_SUSPEND:
avr32dci_suspend(sc);
break;
case USB_HW_POWER_SHUTDOWN:
avr32dci_uninit(sc);
break;
case USB_HW_POWER_RESUME:
avr32dci_resume(sc);
break;
default:
break;
}
}
struct usb_bus_methods avr32dci_bus_methods =
{
.endpoint_init = &avr32dci_ep_init,
.xfer_setup = &avr32dci_xfer_setup,
.xfer_unsetup = &avr32dci_xfer_unsetup,
.get_hw_ep_profile = &avr32dci_get_hw_ep_profile,
.xfer_stall = &avr32dci_xfer_stall,
.set_stall = &avr32dci_set_stall,
.clear_stall = &avr32dci_clear_stall,
.roothub_exec = &avr32dci_roothub_exec,
.xfer_poll = &avr32dci_do_poll,
.set_hw_power_sleep = &avr32dci_set_hw_power_sleep,
};
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