#include <machine/rtems-bsd-kernel-space.h>
/* $OpenBSD: if_urtwn.c,v 1.16 2011/02/10 17:26:40 jakemsr Exp $ */
/*-
* Copyright (c) 2010 Damien Bergamini <damien.bergamini@free.fr>
* Copyright (c) 2014 Kevin Lo <kevlo@FreeBSD.org>
* Copyright (c) 2015-2016 Andriy Voskoboinyk <avos@FreeBSD.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <rtems/bsd/local/opt_wlan.h>
#include <rtems/bsd/sys/param.h>
#include <rtems/bsd/sys/lock.h>
#include <sys/mutex.h>
#include <sys/condvar.h>
#include <sys/mbuf.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/queue.h>
#include <sys/taskqueue.h>
#include <sys/bus.h>
#include <sys/endian.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usb_device.h>
#include <net/if.h>
#include <net/ethernet.h>
#include <net/if_media.h>
#include <net80211/ieee80211_var.h>
#include <dev/rtwn/if_rtwnvar.h>
#include <dev/rtwn/if_rtwn_debug.h>
#include <dev/rtwn/usb/rtwn_usb_var.h>
#include <dev/rtwn/usb/rtwn_usb_ep.h>
#include <dev/rtwn/usb/rtwn_usb_rx.h>
#include <dev/rtwn/usb/rtwn_usb_tx.h>
#include <dev/rtwn/rtl8192c/usb/r92cu_reg.h>
static struct usb_config rtwn_config[RTWN_N_TRANSFER] = {
[RTWN_BULK_RX] = {
.type = UE_BULK,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_IN,
.flags = {
.pipe_bof = 1,
.short_xfer_ok = 1
},
.callback = rtwn_bulk_rx_callback,
},
[RTWN_BULK_TX_BE] = {
.type = UE_BULK,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_OUT,
.bufsize = RTWN_TXBUFSZ,
.flags = {
.ext_buffer = 1,
.pipe_bof = 1,
.force_short_xfer = 1,
},
.callback = rtwn_bulk_tx_callback,
.timeout = RTWN_TX_TIMEOUT, /* ms */
},
[RTWN_BULK_TX_BK] = {
.type = UE_BULK,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_OUT,
.bufsize = RTWN_TXBUFSZ,
.flags = {
.ext_buffer = 1,
.pipe_bof = 1,
.force_short_xfer = 1,
},
.callback = rtwn_bulk_tx_callback,
.timeout = RTWN_TX_TIMEOUT, /* ms */
},
[RTWN_BULK_TX_VI] = {
.type = UE_BULK,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_OUT,
.bufsize = RTWN_TXBUFSZ,
.flags = {
.ext_buffer = 1,
.pipe_bof = 1,
.force_short_xfer = 1
},
.callback = rtwn_bulk_tx_callback,
.timeout = RTWN_TX_TIMEOUT, /* ms */
},
[RTWN_BULK_TX_VO] = {
.type = UE_BULK,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_OUT,
.bufsize = RTWN_TXBUFSZ,
.flags = {
.ext_buffer = 1,
.pipe_bof = 1,
.force_short_xfer = 1
},
.callback = rtwn_bulk_tx_callback,
.timeout = RTWN_TX_TIMEOUT, /* ms */
},
};
static void
rtwn_usb_setup_queues(struct rtwn_usb_softc *uc)
{
struct rtwn_softc *sc = &uc->uc_sc;
int hasnq, haslq, nqueues, nqpages, nrempages;
/* Get Tx queues to USB endpoints mapping. */
hasnq = haslq = 0;
switch (uc->ntx) {
case 4:
case 3:
haslq = 1;
/* FALLTHROUGH */
case 2:
hasnq = 1;
/* FALLTHROUGH */
default:
break;
}
nqueues = 1 + hasnq + haslq;
/* Get the number of pages for each queue. */
nqpages = (sc->page_count - sc->npubqpages) / nqueues;
/*
* The remaining pages are assigned to the high priority
* queue.
*/
nrempages = (sc->page_count - sc->npubqpages) % nqueues;
sc->nhqpages = nqpages + nrempages;
sc->nnqpages = (hasnq ? nqpages : 0);
sc->nlqpages = (haslq ? nqpages : 0);
}
int
rtwn_usb_setup_endpoints(struct rtwn_usb_softc *uc)
{
struct rtwn_softc *sc = &uc->uc_sc;
const uint8_t iface_index = RTWN_IFACE_INDEX;
struct usb_endpoint *ep, *ep_end;
uint8_t addr[RTWN_MAX_EPOUT];
int error;
/* Determine the number of bulk-out pipes. */
uc->ntx = 0;
ep = uc->uc_udev->endpoints;
ep_end = uc->uc_udev->endpoints + uc->uc_udev->endpoints_max;
for (; ep != ep_end; ep++) {
uint8_t eaddr;
if ((ep->edesc == NULL) || (ep->iface_index != iface_index))
continue;
eaddr = ep->edesc->bEndpointAddress;
RTWN_DPRINTF(sc, RTWN_DEBUG_USB,
"%s: endpoint: addr %u, direction %s\n", __func__,
UE_GET_ADDR(eaddr), UE_GET_DIR(eaddr) == UE_DIR_OUT ?
"output" : "input");
if (UE_GET_DIR(eaddr) == UE_DIR_OUT) {
if (uc->ntx == RTWN_MAX_EPOUT)
break;
addr[uc->ntx++] = UE_GET_ADDR(eaddr);
}
}
if (uc->ntx == 0 || uc->ntx > RTWN_MAX_EPOUT) {
device_printf(sc->sc_dev,
"%s: invalid number of Tx bulk pipes (%d)\n", __func__,
uc->ntx);
return (EINVAL);
}
/* NB: keep in sync with rtwn_dma_init(). */
rtwn_config[RTWN_BULK_TX_VO].endpoint = addr[0];
switch (uc->ntx) {
case 4:
case 3:
rtwn_config[RTWN_BULK_TX_BE].endpoint = addr[2];
rtwn_config[RTWN_BULK_TX_BK].endpoint = addr[2];
rtwn_config[RTWN_BULK_TX_VI].endpoint = addr[1];
break;
case 2:
rtwn_config[RTWN_BULK_TX_BE].endpoint = addr[1];
rtwn_config[RTWN_BULK_TX_BK].endpoint = addr[1];
rtwn_config[RTWN_BULK_TX_VI].endpoint = addr[0];
break;
case 1:
rtwn_config[RTWN_BULK_TX_BE].endpoint = addr[0];
rtwn_config[RTWN_BULK_TX_BK].endpoint = addr[0];
rtwn_config[RTWN_BULK_TX_VI].endpoint = addr[0];
break;
default:
KASSERT(0, ("unhandled number of endpoints %d\n", uc->ntx));
break;
}
rtwn_config[RTWN_BULK_RX].bufsize = sc->rx_dma_size + 1024;
error = usbd_transfer_setup(uc->uc_udev, &iface_index,
uc->uc_xfer, rtwn_config, RTWN_N_TRANSFER, uc, &sc->sc_mtx);
if (error) {
device_printf(sc->sc_dev, "could not allocate USB transfers, "
"err=%s\n", usbd_errstr(error));
return (error);
}
/* Assign pages for each queue (if not done). */
if (sc->nhqpages == 0 && sc->nnqpages == 0 && sc->nlqpages == 0)
rtwn_usb_setup_queues(uc);
return (0);
}
uint16_t
rtwn_usb_get_qmap(struct rtwn_softc *sc)
{
struct rtwn_usb_softc *uc = RTWN_USB_SOFTC(sc);
switch (uc->ntx) {
case 1:
return (R92C_TRXDMA_CTRL_QMAP_HQ);
case 2:
return (R92C_TRXDMA_CTRL_QMAP_HQ_NQ);
default:
return (R92C_TRXDMA_CTRL_QMAP_3EP);
}
}
