diff options
Diffstat (limited to 'freebsd/sys/dev/rtwn/if_rtwn_fw.c')
| -rw-r--r-- | freebsd/sys/dev/rtwn/if_rtwn_fw.c | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/freebsd/sys/dev/rtwn/if_rtwn_fw.c b/freebsd/sys/dev/rtwn/if_rtwn_fw.c new file mode 100644 index 00000000..a4c9506e --- /dev/null +++ b/freebsd/sys/dev/rtwn/if_rtwn_fw.c @@ -0,0 +1,226 @@ +#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/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 <sys/firmware.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/if_rtwn_debug.h> +#include <dev/rtwn/if_rtwn_fw.h> + +#include <dev/rtwn/rtl8192c/r92c_reg.h> + + +#ifndef RTWN_WITHOUT_UCODE +static int +rtwn_fw_loadpage(struct rtwn_softc *sc, int page, const uint8_t *buf, + int len) +{ + uint32_t reg; + uint16_t off; + int mlen, error; + + reg = rtwn_read_4(sc, R92C_MCUFWDL); + reg = RW(reg, R92C_MCUFWDL_PAGE, page); + rtwn_write_4(sc, R92C_MCUFWDL, reg); + + error = 0; + off = R92C_FW_START_ADDR; + while (len > 0) { + if (len > R92C_FW_MAX_BLOCK_SIZE) + mlen = R92C_FW_MAX_BLOCK_SIZE; + else if (len > 4) + mlen = 4; + else + mlen = 1; + error = rtwn_fw_write_block(sc, buf, off, mlen); + if (error != 0) + break; + off += mlen; + buf += mlen; + len -= mlen; + } + + if (error != 0) { + RTWN_DPRINTF(sc, RTWN_DEBUG_FIRMWARE, + "%s: could not load firmware page %d (offset %u)\n", + __func__, page, off); + } + + return (error); +} + +static int +rtwn_fw_checksum_report(struct rtwn_softc *sc) +{ + int ntries; + + for (ntries = 0; ntries < 25; ntries++) { + if (rtwn_read_4(sc, R92C_MCUFWDL) & R92C_MCUFWDL_CHKSUM_RPT) + break; + rtwn_delay(sc, 10000); + } + if (ntries == 25) { + RTWN_DPRINTF(sc, RTWN_DEBUG_FIRMWARE, + "timeout waiting for checksum report\n"); + return (ETIMEDOUT); + } + + return (0); +} + +int +rtwn_load_firmware(struct rtwn_softc *sc) +{ + const struct firmware *fw; + const struct r92c_fw_hdr *hdr; + const u_char *ptr; + size_t len; + int ntries, error; + + /* Read firmware image from the filesystem. */ + RTWN_UNLOCK(sc); + fw = firmware_get(sc->fwname); + RTWN_LOCK(sc); + if (fw == NULL) { + device_printf(sc->sc_dev, + "failed loadfirmware of file %s\n", sc->fwname); + return (ENOENT); + } + + len = fw->datasize; + if (len < sizeof(*hdr) || len > sc->fwsize_limit) { + device_printf(sc->sc_dev, "wrong firmware size (%zu)\n", len); + error = EINVAL; + goto fail; + } + ptr = fw->data; + hdr = (const struct r92c_fw_hdr *)ptr; + /* Check if there is a valid FW header and skip it. */ + if ((le16toh(hdr->signature) >> 4) == sc->fwsig) { + sc->fwver = le16toh(hdr->version); + + RTWN_DPRINTF(sc, RTWN_DEBUG_FIRMWARE, + "FW V%u.%u %02u-%02u %02u:%02u\n", + le16toh(hdr->version), le16toh(hdr->subversion), + hdr->month, hdr->date, hdr->hour, hdr->minute); + ptr += sizeof(*hdr); + len -= sizeof(*hdr); + } + + if (rtwn_read_1(sc, R92C_MCUFWDL) & R92C_MCUFWDL_RAM_DL_SEL) { + rtwn_write_1(sc, R92C_MCUFWDL, 0); + rtwn_fw_reset(sc, RTWN_FW_RESET_DOWNLOAD); + } + + /* Enable firmware download. */ + rtwn_fw_download_enable(sc, 1); + + error = 0; /* compiler warning */ + for (ntries = 0; ntries < 3; ntries++) { + const u_char *curr_ptr = ptr; + const int maxpages = len / R92C_FW_PAGE_SIZE; + int page; + + /* Reset the FWDL checksum. */ + rtwn_setbits_1(sc, R92C_MCUFWDL, 0, R92C_MCUFWDL_CHKSUM_RPT); + + for (page = 0; page < maxpages; page++) { + error = rtwn_fw_loadpage(sc, page, curr_ptr, + R92C_FW_PAGE_SIZE); + if (error != 0) + break; + curr_ptr += R92C_FW_PAGE_SIZE; + } + if (page != maxpages) + continue; + + if (len % R92C_FW_PAGE_SIZE != 0) { + error = rtwn_fw_loadpage(sc, page, curr_ptr, + len % R92C_FW_PAGE_SIZE); + if (error != 0) + continue; + } + + /* Wait for checksum report. */ + error = rtwn_fw_checksum_report(sc); + if (error == 0) + break; + } + if (ntries == 3) { + device_printf(sc->sc_dev, + "%s: failed to upload firmware %s (error %d)\n", + __func__, sc->fwname, error); + goto fail; + } + + /* Disable firmware download. */ + rtwn_fw_download_enable(sc, 0); + + rtwn_setbits_4(sc, R92C_MCUFWDL, R92C_MCUFWDL_WINTINI_RDY, + R92C_MCUFWDL_RDY); + + rtwn_fw_reset(sc, RTWN_FW_RESET_CHECKSUM); + + /* Wait for firmware readiness. */ + for (ntries = 0; ntries < 20; ntries++) { + if (rtwn_read_4(sc, R92C_MCUFWDL) & R92C_MCUFWDL_WINTINI_RDY) + break; + rtwn_delay(sc, 10000); + } + if (ntries == 20) { + device_printf(sc->sc_dev, + "timeout waiting for firmware readiness\n"); + error = ETIMEDOUT; + goto fail; + } +fail: + firmware_put(fw, FIRMWARE_UNLOAD); + return (error); +} +#endif |