diff options
Diffstat (limited to 'freebsd/sys/dev/rtwn/rtl8192c/r92c_llt.c')
| -rw-r--r-- | freebsd/sys/dev/rtwn/rtl8192c/r92c_llt.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/freebsd/sys/dev/rtwn/rtl8192c/r92c_llt.c b/freebsd/sys/dev/rtwn/rtl8192c/r92c_llt.c new file mode 100644 index 00000000..595d79ea --- /dev/null +++ b/freebsd/sys/dev/rtwn/rtl8192c/r92c_llt.c @@ -0,0 +1,75 @@ +#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 <sys/param.h> +#include <sys/lock.h> +#include <sys/mutex.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 <sys/linker.h> + +#include <net/if.h> +#include <net/ethernet.h> +#include <net/if_media.h> + +#include <net80211/ieee80211_var.h> +#include <net80211/ieee80211_radiotap.h> + +#include <dev/rtwn/if_rtwnreg.h> +#include <dev/rtwn/if_rtwnvar.h> + +#include <dev/rtwn/rtl8192c/r92c.h> +#include <dev/rtwn/rtl8192c/r92c_reg.h> +#include <dev/rtwn/rtl8192c/r92c_var.h> + +int +r92c_llt_write(struct rtwn_softc *sc, uint32_t addr, uint32_t data) +{ + int ntries, error; + + error = rtwn_write_4(sc, R92C_LLT_INIT, + SM(R92C_LLT_INIT_OP, R92C_LLT_INIT_OP_WRITE) | + SM(R92C_LLT_INIT_ADDR, addr) | + SM(R92C_LLT_INIT_DATA, data)); + if (error != 0) + return (error); + /* Wait for write operation to complete. */ + for (ntries = 0; ntries < 20; ntries++) { + if (MS(rtwn_read_4(sc, R92C_LLT_INIT), R92C_LLT_INIT_OP) == + R92C_LLT_INIT_OP_NO_ACTIVE) + return (0); + rtwn_delay(sc, 10); + } + return (ETIMEDOUT); +} |