/*      $OpenBSD: if_rtwn.c,v 1.6 2015/08/28 00:03:53 deraadt Exp $     */

/*-
 * Copyright (c) 2010 Damien Bergamini <damien.bergamini@free.fr>
 * Copyright (c) 2015 Stefan Sperling <stsp@openbsd.org>
 * Copyright (c) 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>
#include "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 <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.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_nop.h>

#include <dev/rtwn/pci/rtwn_pci_var.h>

#include <dev/rtwn/rtl8192c/r92c_var.h>

#include <dev/rtwn/rtl8192c/pci/r92ce.h>
#include <dev/rtwn/rtl8192c/pci/r92ce_priv.h>
#include <dev/rtwn/rtl8192c/pci/r92ce_reg.h>
#include <dev/rtwn/rtl8192c/pci/r92ce_tx_desc.h>

static struct rtwn_r92c_txpwr r92c_txpwr;

void    r92ce_attach(struct rtwn_pci_softc *);

static void
r92ce_postattach(struct rtwn_softc *sc)
{
        struct r92c_softc *rs = sc->sc_priv;
        struct ieee80211com *ic = &sc->sc_ic;

        if (!(rs->chip & R92C_CHIP_92C) &&
            rs->board_type == R92C_BOARD_TYPE_HIGHPA)
                rs->rs_txagc = &rtl8188ru_txagc[0];
        else
                rs->rs_txagc = &rtl8192cu_txagc[0];

        if ((rs->chip & (R92C_CHIP_UMC_A_CUT | R92C_CHIP_92C)) ==
            R92C_CHIP_UMC_A_CUT)
                sc->fwname = "rtwn-rtl8192cfwE";
        else
                sc->fwname = "rtwn-rtl8192cfwE_B";
        sc->fwsig = 0x88c;

        rs->rs_scan_start = ic->ic_scan_start;
        ic->ic_scan_start = r92c_scan_start;
        rs->rs_scan_end = ic->ic_scan_end;
        ic->ic_scan_end = r92c_scan_end;
}

static void
r92ce_set_name(struct rtwn_softc *sc, uint8_t *buf)
{
        struct r92c_softc *rs = sc->sc_priv;

        if (rs->chip & R92C_CHIP_92C)
                sc->name = "RTL8192CE";
        else
                sc->name = "RTL8188CE";
}

static void
r92ce_attach_private(struct rtwn_softc *sc)
{
        struct r92c_softc *rs;

        rs = malloc(sizeof(struct r92c_softc), M_RTWN_PRIV, M_WAITOK | M_ZERO);

        rs->rs_txpwr                    = &r92c_txpwr;

        rs->rs_set_bw20                 = r92c_set_bw20;
        rs->rs_get_txpower              = r92c_get_txpower;
        rs->rs_set_gain                 = r92c_set_gain;
        rs->rs_tx_enable_ampdu          = r92c_tx_enable_ampdu;
        rs->rs_tx_setup_hwseq           = r92c_tx_setup_hwseq;
        rs->rs_tx_setup_macid           = r92c_tx_setup_macid;
        rs->rs_set_rom_opts             = r92ce_set_name;

        /* XXX TODO: test with net80211 ratectl! */
#ifndef RTWN_WITHOUT_UCODE
        rs->rs_c2h_timeout              = hz;

        callout_init_mtx(&rs->rs_c2h_report, &sc->sc_mtx, 0);
#endif

        rs->rf_read_delay[0]            = 1000;
        rs->rf_read_delay[1]            = 1000;
        rs->rf_read_delay[2]            = 1000;

        sc->sc_priv = rs;
}

static void
r92ce_adj_devcaps(struct rtwn_softc *sc)
{
        struct ieee80211com *ic = &sc->sc_ic;

        /*
         * XXX do NOT enable PMGT until RSVD_PAGE command
         * will not be tested / fixed + HRPWM register must be set too.
         */
        ic->ic_caps &= ~IEEE80211_C_PMGT;
}

void
r92ce_attach(struct rtwn_pci_softc *pc)
{
        struct rtwn_softc *sc           = &pc->pc_sc;

        /* PCIe part. */
        pc->pc_setup_tx_desc            = r92ce_setup_tx_desc;
        pc->pc_tx_postsetup             = r92ce_tx_postsetup;
        pc->pc_copy_tx_desc             = r92ce_copy_tx_desc;
        pc->pc_enable_intr              = r92ce_enable_intr;
        pc->pc_get_intr_status          = r92ce_get_intr_status;

        pc->pc_qmap                     = 0xf771;
        pc->tcr                         =
            R92C_TCR_CFENDFORM | (1 << 12) | (1 << 13);

        /* Common part. */
        /* RTL8192C* cannot use pairwise keys from first 4 slots */
        sc->sc_flags                    = RTWN_FLAG_CAM_FIXED;

        sc->sc_start_xfers              = r92ce_start_xfers;
        sc->sc_set_chan                 = r92c_set_chan;
        sc->sc_fill_tx_desc             = r92c_fill_tx_desc;
        sc->sc_fill_tx_desc_raw         = r92c_fill_tx_desc_raw;
        sc->sc_fill_tx_desc_null        = r92c_fill_tx_desc_null; /* XXX recheck */
        sc->sc_dump_tx_desc             = r92ce_dump_tx_desc;
        sc->sc_tx_radiotap_flags        = r92c_tx_radiotap_flags;
        sc->sc_rx_radiotap_flags        = r92c_rx_radiotap_flags;
        sc->sc_get_rx_stats             = r92c_get_rx_stats;
        sc->sc_get_rssi_cck             = r92c_get_rssi_cck;
        sc->sc_get_rssi_ofdm            = r92c_get_rssi_ofdm;
        sc->sc_classify_intr            = r92c_classify_intr;
        sc->sc_handle_tx_report         = rtwn_nop_softc_uint8_int;
        sc->sc_handle_tx_report2        = rtwn_nop_softc_uint8_int;
        sc->sc_handle_c2h_report        = rtwn_nop_softc_uint8_int;
        sc->sc_check_frame              = rtwn_nop_int_softc_mbuf;
        sc->sc_rf_read                  = r92c_rf_read;
        sc->sc_rf_write                 = r92c_rf_write;
        sc->sc_check_condition          = r92c_check_condition;
        sc->sc_efuse_postread           = r92c_efuse_postread;
        sc->sc_parse_rom                = r92c_parse_rom;
        sc->sc_set_led                  = r92ce_set_led;
        sc->sc_power_on                 = r92ce_power_on;
        sc->sc_power_off                = r92ce_power_off;
#ifndef RTWN_WITHOUT_UCODE
        sc->sc_fw_reset                 = r92ce_fw_reset;
        sc->sc_fw_download_enable       = r92c_fw_download_enable;
#endif
        sc->sc_llt_init                 = r92c_llt_init;
        sc->sc_set_page_size            = r92c_set_page_size;
        sc->sc_lc_calib                 = r92c_lc_calib;
        sc->sc_iq_calib                 = r92ce_iq_calib;
        sc->sc_read_chipid_vendor       = r92c_read_chipid_vendor;
        sc->sc_adj_devcaps              = r92ce_adj_devcaps;
        sc->sc_vap_preattach            = rtwn_nop_softc_vap;
        sc->sc_postattach               = r92ce_postattach;
        sc->sc_detach_private           = r92c_detach_private;
        sc->sc_set_media_status         = r92c_joinbss_rpt;
#ifndef RTWN_WITHOUT_UCODE
        sc->sc_set_rsvd_page            = r92c_set_rsvd_page;
        sc->sc_set_pwrmode              = r92c_set_pwrmode;
        sc->sc_set_rssi                 = r92c_set_rssi;
#endif
        sc->sc_beacon_init              = r92c_beacon_init;
        sc->sc_beacon_enable            = r92c_beacon_enable;
        sc->sc_sta_beacon_enable        = r92c_sta_beacon_enable;
        sc->sc_beacon_set_rate          = rtwn_nop_void_int;
        sc->sc_beacon_select            = rtwn_nop_softc_int;
        sc->sc_temp_measure             = r92c_temp_measure;
        sc->sc_temp_read                = r92c_temp_read;
        sc->sc_init_tx_agg              = rtwn_nop_softc;
        sc->sc_init_rx_agg              = rtwn_nop_softc;
        sc->sc_init_ampdu               = r92ce_init_ampdu;
        sc->sc_init_intr                = r92ce_init_intr;
        sc->sc_init_edca                = r92ce_init_edca;
        sc->sc_init_bb                  = r92ce_init_bb;
        sc->sc_init_rf                  = r92c_init_rf;
        sc->sc_init_antsel              = rtwn_nop_softc;
        sc->sc_post_init                = r92ce_post_init;
        sc->sc_init_bcnq1_boundary      = rtwn_nop_int_softc;
        sc->sc_set_tx_power             = r92c_set_tx_power;

        sc->mac_prog                    = &rtl8192ce_mac[0];
        sc->mac_size                    = nitems(rtl8192ce_mac);
        sc->bb_prog                     = &rtl8192ce_bb[0];
        sc->bb_size                     = nitems(rtl8192ce_bb);
        sc->agc_prog                    = &rtl8192ce_agc[0];
        sc->agc_size                    = nitems(rtl8192ce_agc);
        sc->rf_prog                     = &rtl8192c_rf[0];

        sc->page_count                  = R92CE_TX_PAGE_COUNT;
        sc->pktbuf_count                = R92C_TXPKTBUF_COUNT;

        sc->ackto                       = 0x40;
        sc->npubqpages                  = R92CE_PUBQ_NPAGES;
        sc->nhqpages                    = R92CE_HPQ_NPAGES;
        sc->nnqpages                    = 0;
        sc->nlqpages                    = R92CE_LPQ_NPAGES;
        sc->page_size                   = R92C_TX_PAGE_SIZE;

        sc->txdesc_len                  = sizeof(struct r92ce_tx_desc);
        sc->efuse_maxlen                = R92C_EFUSE_MAX_LEN;
        sc->efuse_maplen                = R92C_EFUSE_MAP_LEN;
        sc->rx_dma_size                 = R92C_RX_DMA_BUFFER_SIZE;

        sc->macid_limit                 = R92C_MACID_MAX + 1;
        sc->cam_entry_limit             = R92C_CAM_ENTRY_COUNT;
        sc->fwsize_limit                = R92C_MAX_FW_SIZE;
        sc->temp_delta                  = R92C_CALIB_THRESHOLD;

        sc->bcn_status_reg[0]           = R92C_TDECTRL;
        /*
         * TODO: some additional setup is required
         * to maintain few beacons at the same time.
         *
         * XXX BCNQ1 mechanism is not needed here; move it to the USB module.
         */
        sc->bcn_status_reg[1]           = R92C_TDECTRL;
        sc->rcr                         = 0;

        r92ce_attach_private(sc);
}