diff options
Diffstat (limited to 'freebsd/sys/dev/rtwn/usb/rtwn_usb_ep.c')
| -rw-r--r-- | freebsd/sys/dev/rtwn/usb/rtwn_usb_ep.c | 255 |
1 files changed, 255 insertions, 0 deletions
diff --git a/freebsd/sys/dev/rtwn/usb/rtwn_usb_ep.c b/freebsd/sys/dev/rtwn/usb/rtwn_usb_ep.c new file mode 100644 index 00000000..a1fafb46 --- /dev/null +++ b/freebsd/sys/dev/rtwn/usb/rtwn_usb_ep.c @@ -0,0 +1,255 @@ +#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); + } +} |