diff options
Diffstat (limited to 'drivers/net/wireless/brcm80211/brcmsmac/antsel.c')
| -rw-r--r-- | drivers/net/wireless/brcm80211/brcmsmac/antsel.c | 309 |
1 files changed, 0 insertions, 309 deletions
diff --git a/drivers/net/wireless/brcm80211/brcmsmac/antsel.c b/drivers/net/wireless/brcm80211/brcmsmac/antsel.c deleted file mode 100644 index 54c616919..000000000 --- a/drivers/net/wireless/brcm80211/brcmsmac/antsel.c +++ /dev/null @@ -1,309 +0,0 @@ -/* - * Copyright (c) 2010 Broadcom Corporation - * - * Permission to use, copy, modify, and/or 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 <linux/slab.h> -#include <net/mac80211.h> - -#include "types.h" -#include "main.h" -#include "phy_shim.h" -#include "antsel.h" -#include "debug.h" - -#define ANT_SELCFG_AUTO 0x80 /* bit indicates antenna sel AUTO */ -#define ANT_SELCFG_MASK 0x33 /* antenna configuration mask */ -#define ANT_SELCFG_TX_UNICAST 0 /* unicast tx antenna configuration */ -#define ANT_SELCFG_RX_UNICAST 1 /* unicast rx antenna configuration */ -#define ANT_SELCFG_TX_DEF 2 /* default tx antenna configuration */ -#define ANT_SELCFG_RX_DEF 3 /* default rx antenna configuration */ - -/* useful macros */ -#define BRCMS_ANTSEL_11N_0(ant) ((((ant) & ANT_SELCFG_MASK) >> 4) & 0xf) -#define BRCMS_ANTSEL_11N_1(ant) (((ant) & ANT_SELCFG_MASK) & 0xf) -#define BRCMS_ANTIDX_11N(ant) (((BRCMS_ANTSEL_11N_0(ant)) << 2) +\ - (BRCMS_ANTSEL_11N_1(ant))) -#define BRCMS_ANT_ISAUTO_11N(ant) (((ant) & ANT_SELCFG_AUTO) == ANT_SELCFG_AUTO) -#define BRCMS_ANTSEL_11N(ant) ((ant) & ANT_SELCFG_MASK) - -/* antenna switch */ -/* defines for no boardlevel antenna diversity */ -#define ANT_SELCFG_DEF_2x2 0x01 /* default antenna configuration */ - -/* 2x3 antdiv defines and tables for GPIO communication */ -#define ANT_SELCFG_NUM_2x3 3 -#define ANT_SELCFG_DEF_2x3 0x01 /* default antenna configuration */ - -/* 2x4 antdiv rev4 defines and tables for GPIO communication */ -#define ANT_SELCFG_NUM_2x4 4 -#define ANT_SELCFG_DEF_2x4 0x02 /* default antenna configuration */ - -static const u16 mimo_2x4_div_antselpat_tbl[] = { - 0, 0, 0x9, 0xa, /* ant0: 0 ant1: 2,3 */ - 0, 0, 0x5, 0x6, /* ant0: 1 ant1: 2,3 */ - 0, 0, 0, 0, /* n.a. */ - 0, 0, 0, 0 /* n.a. */ -}; - -static const u8 mimo_2x4_div_antselid_tbl[16] = { - 0, 0, 0, 0, 0, 2, 3, 0, - 0, 0, 1, 0, 0, 0, 0, 0 /* pat to antselid */ -}; - -static const u16 mimo_2x3_div_antselpat_tbl[] = { - 16, 0, 1, 16, /* ant0: 0 ant1: 1,2 */ - 16, 16, 16, 16, /* n.a. */ - 16, 2, 16, 16, /* ant0: 2 ant1: 1 */ - 16, 16, 16, 16 /* n.a. */ -}; - -static const u8 mimo_2x3_div_antselid_tbl[16] = { - 0, 1, 2, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0 /* pat to antselid */ -}; - -/* boardlevel antenna selection: init antenna selection structure */ -static void -brcms_c_antsel_init_cfg(struct antsel_info *asi, struct brcms_antselcfg *antsel, - bool auto_sel) -{ - if (asi->antsel_type == ANTSEL_2x3) { - u8 antcfg_def = ANT_SELCFG_DEF_2x3 | - ((asi->antsel_avail && auto_sel) ? ANT_SELCFG_AUTO : 0); - antsel->ant_config[ANT_SELCFG_TX_DEF] = antcfg_def; - antsel->ant_config[ANT_SELCFG_TX_UNICAST] = antcfg_def; - antsel->ant_config[ANT_SELCFG_RX_DEF] = antcfg_def; - antsel->ant_config[ANT_SELCFG_RX_UNICAST] = antcfg_def; - antsel->num_antcfg = ANT_SELCFG_NUM_2x3; - - } else if (asi->antsel_type == ANTSEL_2x4) { - - antsel->ant_config[ANT_SELCFG_TX_DEF] = ANT_SELCFG_DEF_2x4; - antsel->ant_config[ANT_SELCFG_TX_UNICAST] = ANT_SELCFG_DEF_2x4; - antsel->ant_config[ANT_SELCFG_RX_DEF] = ANT_SELCFG_DEF_2x4; - antsel->ant_config[ANT_SELCFG_RX_UNICAST] = ANT_SELCFG_DEF_2x4; - antsel->num_antcfg = ANT_SELCFG_NUM_2x4; - - } else { /* no antenna selection available */ - - antsel->ant_config[ANT_SELCFG_TX_DEF] = ANT_SELCFG_DEF_2x2; - antsel->ant_config[ANT_SELCFG_TX_UNICAST] = ANT_SELCFG_DEF_2x2; - antsel->ant_config[ANT_SELCFG_RX_DEF] = ANT_SELCFG_DEF_2x2; - antsel->ant_config[ANT_SELCFG_RX_UNICAST] = ANT_SELCFG_DEF_2x2; - antsel->num_antcfg = 0; - } -} - -struct antsel_info *brcms_c_antsel_attach(struct brcms_c_info *wlc) -{ - struct antsel_info *asi; - struct ssb_sprom *sprom = &wlc->hw->d11core->bus->sprom; - - asi = kzalloc(sizeof(struct antsel_info), GFP_ATOMIC); - if (!asi) - return NULL; - - asi->wlc = wlc; - asi->pub = wlc->pub; - asi->antsel_type = ANTSEL_NA; - asi->antsel_avail = false; - asi->antsel_antswitch = sprom->antswitch; - - if ((asi->pub->sromrev >= 4) && (asi->antsel_antswitch != 0)) { - switch (asi->antsel_antswitch) { - case ANTSWITCH_TYPE_1: - case ANTSWITCH_TYPE_2: - case ANTSWITCH_TYPE_3: - /* 4321/2 board with 2x3 switch logic */ - asi->antsel_type = ANTSEL_2x3; - /* Antenna selection availability */ - if ((sprom->ant_available_bg == 7) || - (sprom->ant_available_a == 7)) { - asi->antsel_avail = true; - } else if ( - sprom->ant_available_bg == 3 || - sprom->ant_available_a == 3) { - asi->antsel_avail = false; - } else { - asi->antsel_avail = false; - brcms_err(wlc->hw->d11core, - "antsel_attach: 2o3 " - "board cfg invalid\n"); - } - - break; - default: - break; - } - } else if ((asi->pub->sromrev == 4) && - (sprom->ant_available_bg == 7) && - (sprom->ant_available_a == 0)) { - /* hack to match old 4321CB2 cards with 2of3 antenna switch */ - asi->antsel_type = ANTSEL_2x3; - asi->antsel_avail = true; - } else if (asi->pub->boardflags2 & BFL2_2X4_DIV) { - asi->antsel_type = ANTSEL_2x4; - asi->antsel_avail = true; - } - - /* Set the antenna selection type for the low driver */ - brcms_b_antsel_type_set(wlc->hw, asi->antsel_type); - - /* Init (auto/manual) antenna selection */ - brcms_c_antsel_init_cfg(asi, &asi->antcfg_11n, true); - brcms_c_antsel_init_cfg(asi, &asi->antcfg_cur, true); - - return asi; -} - -void brcms_c_antsel_detach(struct antsel_info *asi) -{ - kfree(asi); -} - -/* - * boardlevel antenna selection: - * convert ant_cfg to mimo_antsel (ucode interface) - */ -static u16 brcms_c_antsel_antcfg2antsel(struct antsel_info *asi, u8 ant_cfg) -{ - u8 idx = BRCMS_ANTIDX_11N(BRCMS_ANTSEL_11N(ant_cfg)); - u16 mimo_antsel = 0; - - if (asi->antsel_type == ANTSEL_2x4) { - /* 2x4 antenna diversity board, 4 cfgs: 0-2 0-3 1-2 1-3 */ - mimo_antsel = (mimo_2x4_div_antselpat_tbl[idx] & 0xf); - return mimo_antsel; - - } else if (asi->antsel_type == ANTSEL_2x3) { - /* 2x3 antenna selection, 3 cfgs: 0-1 0-2 2-1 */ - mimo_antsel = (mimo_2x3_div_antselpat_tbl[idx] & 0xf); - return mimo_antsel; - } - - return mimo_antsel; -} - -/* boardlevel antenna selection: ucode interface control */ -static int brcms_c_antsel_cfgupd(struct antsel_info *asi, - struct brcms_antselcfg *antsel) -{ - struct brcms_c_info *wlc = asi->wlc; - u8 ant_cfg; - u16 mimo_antsel; - - /* 1) Update TX antconfig for all frames that are not unicast data - * (aka default TX) - */ - ant_cfg = antsel->ant_config[ANT_SELCFG_TX_DEF]; - mimo_antsel = brcms_c_antsel_antcfg2antsel(asi, ant_cfg); - brcms_b_write_shm(wlc->hw, M_MIMO_ANTSEL_TXDFLT, mimo_antsel); - /* - * Update driver stats for currently selected - * default tx/rx antenna config - */ - asi->antcfg_cur.ant_config[ANT_SELCFG_TX_DEF] = ant_cfg; - - /* 2) Update RX antconfig for all frames that are not unicast data - * (aka default RX) - */ - ant_cfg = antsel->ant_config[ANT_SELCFG_RX_DEF]; - mimo_antsel = brcms_c_antsel_antcfg2antsel(asi, ant_cfg); - brcms_b_write_shm(wlc->hw, M_MIMO_ANTSEL_RXDFLT, mimo_antsel); - /* - * Update driver stats for currently selected - * default tx/rx antenna config - */ - asi->antcfg_cur.ant_config[ANT_SELCFG_RX_DEF] = ant_cfg; - - return 0; -} - -void brcms_c_antsel_init(struct antsel_info *asi) -{ - if ((asi->antsel_type == ANTSEL_2x3) || - (asi->antsel_type == ANTSEL_2x4)) - brcms_c_antsel_cfgupd(asi, &asi->antcfg_11n); -} - -/* boardlevel antenna selection: convert id to ant_cfg */ -static u8 brcms_c_antsel_id2antcfg(struct antsel_info *asi, u8 id) -{ - u8 antcfg = ANT_SELCFG_DEF_2x2; - - if (asi->antsel_type == ANTSEL_2x4) { - /* 2x4 antenna diversity board, 4 cfgs: 0-2 0-3 1-2 1-3 */ - antcfg = (((id & 0x2) << 3) | ((id & 0x1) + 2)); - return antcfg; - - } else if (asi->antsel_type == ANTSEL_2x3) { - /* 2x3 antenna selection, 3 cfgs: 0-1 0-2 2-1 */ - antcfg = (((id & 0x02) << 4) | ((id & 0x1) + 1)); - return antcfg; - } - - return antcfg; -} - -void -brcms_c_antsel_antcfg_get(struct antsel_info *asi, bool usedef, bool sel, - u8 antselid, u8 fbantselid, u8 *antcfg, - u8 *fbantcfg) -{ - u8 ant; - - /* if use default, assign it and return */ - if (usedef) { - *antcfg = asi->antcfg_11n.ant_config[ANT_SELCFG_TX_DEF]; - *fbantcfg = *antcfg; - return; - } - - if (!sel) { - *antcfg = asi->antcfg_11n.ant_config[ANT_SELCFG_TX_UNICAST]; - *fbantcfg = *antcfg; - - } else { - ant = asi->antcfg_11n.ant_config[ANT_SELCFG_TX_UNICAST]; - if ((ant & ANT_SELCFG_AUTO) == ANT_SELCFG_AUTO) { - *antcfg = brcms_c_antsel_id2antcfg(asi, antselid); - *fbantcfg = brcms_c_antsel_id2antcfg(asi, fbantselid); - } else { - *antcfg = - asi->antcfg_11n.ant_config[ANT_SELCFG_TX_UNICAST]; - *fbantcfg = *antcfg; - } - } - return; -} - -/* boardlevel antenna selection: convert mimo_antsel (ucode interface) to id */ -u8 brcms_c_antsel_antsel2id(struct antsel_info *asi, u16 antsel) -{ - u8 antselid = 0; - - if (asi->antsel_type == ANTSEL_2x4) { - /* 2x4 antenna diversity board, 4 cfgs: 0-2 0-3 1-2 1-3 */ - antselid = mimo_2x4_div_antselid_tbl[(antsel & 0xf)]; - return antselid; - - } else if (asi->antsel_type == ANTSEL_2x3) { - /* 2x3 antenna selection, 3 cfgs: 0-1 0-2 2-1 */ - antselid = mimo_2x3_div_antselid_tbl[(antsel & 0xf)]; - return antselid; - } - - return antselid; -} |