/* $OpenBSD: if_iwm.c,v 1.39 2015/03/23 00:35:19 jsg Exp $ */ /* * Copyright (c) 2014 genua mbh * Copyright (c) 2014 Fixup Software Ltd. * * 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. */ /*- * Based on BSD-licensed source modules in the Linux iwlwifi driver, * which were used as the reference documentation for this implementation. * * Driver version we are currently based off of is * Linux 3.14.3 (tag id a2df521e42b1d9a23f620ac79dbfe8655a8391dd) * *********************************************************************** * * This file is provided under a dual BSD/GPLv2 license. When using or * redistributing this file, you may do so under either license. * * GPL LICENSE SUMMARY * * Copyright(c) 2007 - 2013 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, * USA * * The full GNU General Public License is included in this distribution * in the file called COPYING. * * Contact Information: * Intel Linux Wireless * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 * * * BSD LICENSE * * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 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. * * Neither the name Intel Corporation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT * OWNER 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. */ /*- * Copyright (c) 2007-2010 Damien Bergamini * * 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 #include "opt_wlan.h" #include "opt_iwm.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "if_iwmreg.h" #include "if_iwmvar.h" #include "if_iwm_debug.h" #include "if_iwm_util.h" #include "if_iwm_phy_db.h" #define CHANNEL_NUM_SIZE 4 /* num of channels in calib_ch size */ struct iwm_phy_db_entry { uint16_t size; uint8_t *data; }; /** * struct iwm_phy_db - stores phy configuration and calibration data. * * @cfg: phy configuration. * @calib_nch: non channel specific calibration data. * @calib_ch: channel specific calibration data. * @n_group_papd: number of entries in papd channel group. * @calib_ch_group_papd: calibration data related to papd channel group. * @n_group_txp: number of entries in tx power channel group. * @calib_ch_group_txp: calibration data related to tx power chanel group. */ struct iwm_phy_db { struct iwm_phy_db_entry cfg; struct iwm_phy_db_entry calib_nch; int n_group_papd; struct iwm_phy_db_entry *calib_ch_group_papd; int n_group_txp; struct iwm_phy_db_entry *calib_ch_group_txp; struct iwm_softc *sc; }; enum iwm_phy_db_section_type { IWM_PHY_DB_CFG = 1, IWM_PHY_DB_CALIB_NCH, IWM_PHY_DB_UNUSED, IWM_PHY_DB_CALIB_CHG_PAPD, IWM_PHY_DB_CALIB_CHG_TXP, IWM_PHY_DB_MAX }; #define PHY_DB_CMD 0x6c /* * phy db - configure operational ucode */ struct iwm_phy_db_cmd { uint16_t type; uint16_t length; uint8_t data[]; } __packed; /* for parsing of tx power channel group data that comes from the firmware*/ struct iwm_phy_db_chg_txp { uint32_t space; uint16_t max_channel_idx; } __packed; /* * phy db - Receive phy db chunk after calibrations */ struct iwm_calib_res_notif_phy_db { uint16_t type; uint16_t length; uint8_t data[]; } __packed; struct iwm_phy_db * iwm_phy_db_init(struct iwm_softc *sc) { struct iwm_phy_db *phy_db = malloc(sizeof(struct iwm_phy_db), M_DEVBUF, M_NOWAIT | M_ZERO); if (!phy_db) return phy_db; phy_db->sc = sc; phy_db->n_group_txp = -1; phy_db->n_group_papd = -1; /* TODO: add default values of the phy db. */ return phy_db; } /* * get phy db section: returns a pointer to a phy db section specified by * type and channel group id. */ static struct iwm_phy_db_entry * iwm_phy_db_get_section(struct iwm_phy_db *phy_db, enum iwm_phy_db_section_type type, uint16_t chg_id) { if (!phy_db || type >= IWM_PHY_DB_MAX) return NULL; switch (type) { case IWM_PHY_DB_CFG: return &phy_db->cfg; case IWM_PHY_DB_CALIB_NCH: return &phy_db->calib_nch; case IWM_PHY_DB_CALIB_CHG_PAPD: if (chg_id >= phy_db->n_group_papd) return NULL; return &phy_db->calib_ch_group_papd[chg_id]; case IWM_PHY_DB_CALIB_CHG_TXP: if (chg_id >= phy_db->n_group_txp) return NULL; return &phy_db->calib_ch_group_txp[chg_id]; default: return NULL; } return NULL; } static void iwm_phy_db_free_section(struct iwm_phy_db *phy_db, enum iwm_phy_db_section_type type, uint16_t chg_id) { struct iwm_phy_db_entry *entry = iwm_phy_db_get_section(phy_db, type, chg_id); if (!entry) return; if (entry->data != NULL) free(entry->data, M_DEVBUF); entry->data = NULL; entry->size = 0; } void iwm_phy_db_free(struct iwm_phy_db *phy_db) { int i; if (!phy_db) return; iwm_phy_db_free_section(phy_db, IWM_PHY_DB_CFG, 0); iwm_phy_db_free_section(phy_db, IWM_PHY_DB_CALIB_NCH, 0); for (i = 0; i < phy_db->n_group_papd; i++) iwm_phy_db_free_section(phy_db, IWM_PHY_DB_CALIB_CHG_PAPD, i); if (phy_db->calib_ch_group_papd != NULL) free(phy_db->calib_ch_group_papd, M_DEVBUF); for (i = 0; i < phy_db->n_group_txp; i++) iwm_phy_db_free_section(phy_db, IWM_PHY_DB_CALIB_CHG_TXP, i); if (phy_db->calib_ch_group_txp != NULL) free(phy_db->calib_ch_group_txp, M_DEVBUF); free(phy_db, M_DEVBUF); } int iwm_phy_db_set_section(struct iwm_phy_db *phy_db, struct iwm_rx_packet *pkt) { struct iwm_calib_res_notif_phy_db *phy_db_notif = (struct iwm_calib_res_notif_phy_db *)pkt->data; enum iwm_phy_db_section_type type = le16toh(phy_db_notif->type); uint16_t size = le16toh(phy_db_notif->length); struct iwm_phy_db_entry *entry; uint16_t chg_id = 0; if (!phy_db) return EINVAL; if (type == IWM_PHY_DB_CALIB_CHG_PAPD) { chg_id = le16toh(*(uint16_t *)phy_db_notif->data); if (phy_db && !phy_db->calib_ch_group_papd) { /* * Firmware sends the largest index first, so we can use * it to know how much we should allocate. */ phy_db->calib_ch_group_papd = malloc( (chg_id + 1) * sizeof(struct iwm_phy_db_entry), M_DEVBUF, M_NOWAIT | M_ZERO); if (!phy_db->calib_ch_group_papd) return ENOMEM; phy_db->n_group_papd = chg_id + 1; } } else if (type == IWM_PHY_DB_CALIB_CHG_TXP) { chg_id = le16toh(*(uint16_t *)phy_db_notif->data); if (phy_db && !phy_db->calib_ch_group_txp) { /* * Firmware sends the largest index first, so we can use * it to know how much we should allocate. */ phy_db->calib_ch_group_txp = malloc( (chg_id + 1) * sizeof(struct iwm_phy_db_entry), M_DEVBUF, M_NOWAIT | M_ZERO); if (!phy_db->calib_ch_group_txp) return ENOMEM; phy_db->n_group_txp = chg_id + 1; } } entry = iwm_phy_db_get_section(phy_db, type, chg_id); if (!entry) return EINVAL; if (entry->data != NULL) free(entry->data, M_DEVBUF); entry->data = malloc(size, M_DEVBUF, M_NOWAIT); if (!entry->data) { entry->size = 0; return ENOMEM; } memcpy(entry->data, phy_db_notif->data, size); entry->size = size; IWM_DPRINTF(phy_db->sc, IWM_DEBUG_RESET, "%s(%d): [PHYDB]SET: Type %d , Size: %d\n", __func__, __LINE__, type, size); return 0; } static int is_valid_channel(uint16_t ch_id) { if (ch_id <= 14 || (36 <= ch_id && ch_id <= 64 && ch_id % 4 == 0) || (100 <= ch_id && ch_id <= 140 && ch_id % 4 == 0) || (145 <= ch_id && ch_id <= 165 && ch_id % 4 == 1)) return 1; return 0; } static uint8_t ch_id_to_ch_index(uint16_t ch_id) { if (!is_valid_channel(ch_id)) return 0xff; if (ch_id <= 14) return ch_id - 1; if (ch_id <= 64) return (ch_id + 20) / 4; if (ch_id <= 140) return (ch_id - 12) / 4; return (ch_id - 13) / 4; } static uint16_t channel_id_to_papd(uint16_t ch_id) { if (!is_valid_channel(ch_id)) return 0xff; if (1 <= ch_id && ch_id <= 14) return 0; if (36 <= ch_id && ch_id <= 64) return 1; if (100 <= ch_id && ch_id <= 140) return 2; return 3; } static uint16_t channel_id_to_txp(struct iwm_phy_db *phy_db, uint16_t ch_id) { struct iwm_phy_db_chg_txp *txp_chg; int i; uint8_t ch_index = ch_id_to_ch_index(ch_id); if (ch_index == 0xff) return 0xff; for (i = 0; i < phy_db->n_group_txp; i++) { txp_chg = (void *)phy_db->calib_ch_group_txp[i].data; if (!txp_chg) return 0xff; /* * Looking for the first channel group that its max channel is * higher then wanted channel. */ if (le16toh(txp_chg->max_channel_idx) >= ch_index) return i; } return 0xff; } static int iwm_phy_db_get_section_data(struct iwm_phy_db *phy_db, uint32_t type, uint8_t **data, uint16_t *size, uint16_t ch_id) { struct iwm_phy_db_entry *entry; uint16_t ch_group_id = 0; if (!phy_db) return EINVAL; /* find wanted channel group */ if (type == IWM_PHY_DB_CALIB_CHG_PAPD) ch_group_id = channel_id_to_papd(ch_id); else if (type == IWM_PHY_DB_CALIB_CHG_TXP) ch_group_id = channel_id_to_txp(phy_db, ch_id); entry = iwm_phy_db_get_section(phy_db, type, ch_group_id); if (!entry) return EINVAL; *data = entry->data; *size = entry->size; IWM_DPRINTF(phy_db->sc, IWM_DEBUG_RESET, "%s(%d): [PHYDB] GET: Type %d , Size: %d\n", __func__, __LINE__, type, *size); return 0; } static int iwm_send_phy_db_cmd(struct iwm_phy_db *phy_db, uint16_t type, uint16_t length, void *data) { struct iwm_phy_db_cmd phy_db_cmd; struct iwm_host_cmd cmd = { .id = PHY_DB_CMD, }; IWM_DPRINTF(phy_db->sc, IWM_DEBUG_RESET, "Sending PHY-DB hcmd of type %d, of length %d\n", type, length); /* Set phy db cmd variables */ phy_db_cmd.type = htole16(type); phy_db_cmd.length = htole16(length); /* Set hcmd variables */ cmd.data[0] = &phy_db_cmd; cmd.len[0] = sizeof(struct iwm_phy_db_cmd); cmd.data[1] = data; cmd.len[1] = length; #ifdef notyet cmd.dataflags[1] = IWM_HCMD_DFL_NOCOPY; #endif return iwm_send_cmd(phy_db->sc, &cmd); } static int iwm_phy_db_send_all_channel_groups(struct iwm_phy_db *phy_db, enum iwm_phy_db_section_type type, uint8_t max_ch_groups) { uint16_t i; int err; struct iwm_phy_db_entry *entry; /* Send all the channel specific groups to operational fw */ for (i = 0; i < max_ch_groups; i++) { entry = iwm_phy_db_get_section(phy_db, type, i); if (!entry) return EINVAL; if (!entry->size) continue; /* Send the requested PHY DB section */ err = iwm_send_phy_db_cmd(phy_db, type, entry->size, entry->data); if (err) { device_printf(phy_db->sc->sc_dev, "Can't SEND phy_db section %d (%d), err %d\n", type, i, err); return err; } IWM_DPRINTF(phy_db->sc, IWM_DEBUG_CMD, "Sent PHY_DB HCMD, type = %d num = %d\n", type, i); } return 0; } int iwm_send_phy_db_data(struct iwm_phy_db *phy_db) { uint8_t *data = NULL; uint16_t size = 0; int err; IWM_DPRINTF(phy_db->sc, IWM_DEBUG_CMD | IWM_DEBUG_RESET, "%s: Sending phy db data and configuration to runtime image\n", __func__); /* Send PHY DB CFG section */ err = iwm_phy_db_get_section_data(phy_db, IWM_PHY_DB_CFG, &data, &size, 0); if (err) { device_printf(phy_db->sc->sc_dev, "%s: Cannot get Phy DB cfg section, %d\n", __func__, err); return err; } err = iwm_send_phy_db_cmd(phy_db, IWM_PHY_DB_CFG, size, data); if (err) { device_printf(phy_db->sc->sc_dev, "%s: Cannot send HCMD of Phy DB cfg section, %d\n", __func__, err); return err; } err = iwm_phy_db_get_section_data(phy_db, IWM_PHY_DB_CALIB_NCH, &data, &size, 0); if (err) { device_printf(phy_db->sc->sc_dev, "%s: Cannot get Phy DB non specific channel section, " "%d\n", __func__, err); return err; } err = iwm_send_phy_db_cmd(phy_db, IWM_PHY_DB_CALIB_NCH, size, data); if (err) { device_printf(phy_db->sc->sc_dev, "%s: Cannot send HCMD of Phy DB non specific channel " "sect, %d\n", __func__, err); return err; } /* Send all the TXP channel specific data */ err = iwm_phy_db_send_all_channel_groups(phy_db, IWM_PHY_DB_CALIB_CHG_PAPD, phy_db->n_group_papd); if (err) { device_printf(phy_db->sc->sc_dev, "%s: Cannot send channel specific PAPD groups, %d\n", __func__, err); return err; } /* Send all the TXP channel specific data */ err = iwm_phy_db_send_all_channel_groups(phy_db, IWM_PHY_DB_CALIB_CHG_TXP, phy_db->n_group_txp); if (err) { device_printf(phy_db->sc->sc_dev, "%s: Cannot send channel specific TX power groups, " "%d\n", __func__, err); return err; } IWM_DPRINTF(phy_db->sc, IWM_DEBUG_CMD | IWM_DEBUG_RESET, "%s: Finished sending phy db non channel data\n", __func__); return 0; }