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#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 <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 <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_var.h>
#include <dev/rtwn/rtl8188e/usb/r88eu.h>
#include <dev/rtwn/rtl8188e/usb/r88eu_reg.h>
void
r88eu_power_off(struct rtwn_softc *sc)
{
uint8_t reg;
int error, ntries;
/* Disable any kind of TX reports. */
error = rtwn_setbits_1(sc, R88E_TX_RPT_CTRL,
R88E_TX_RPT1_ENA | R88E_TX_RPT2_ENA, 0);
if (error == ENXIO) /* hardware gone */
return;
/* Stop Rx. */
rtwn_write_1(sc, R92C_CR, 0);
/* Move card to Low Power State. */
/* Block all Tx queues. */
rtwn_write_1(sc, R92C_TXPAUSE, R92C_TX_QUEUE_ALL);
for (ntries = 0; ntries < 10; ntries++) {
/* Should be zero if no packet is transmitting. */
if (rtwn_read_4(sc, R88E_SCH_TXCMD) == 0)
break;
rtwn_delay(sc, 5000);
}
if (ntries == 10) {
device_printf(sc->sc_dev, "%s: failed to block Tx queues\n",
__func__);
return;
}
/* CCK and OFDM are disabled, and clock are gated. */
rtwn_setbits_1(sc, R92C_SYS_FUNC_EN, R92C_SYS_FUNC_EN_BBRSTB, 0);
rtwn_delay(sc, 1);
/* Reset MAC TRX */
rtwn_write_1(sc, R92C_CR,
R92C_CR_HCI_TXDMA_EN | R92C_CR_HCI_RXDMA_EN |
R92C_CR_TXDMA_EN | R92C_CR_RXDMA_EN |
R92C_CR_PROTOCOL_EN | R92C_CR_SCHEDULE_EN);
/* check if removed later */
rtwn_setbits_1_shift(sc, R92C_CR, R92C_CR_ENSEC, 0, 1);
/* Respond TxOK to scheduler */
rtwn_setbits_1(sc, R92C_DUAL_TSF_RST, 0, 0x20);
/* If firmware in ram code, do reset. */
#ifndef RTWN_WITHOUT_UCODE
if (rtwn_read_1(sc, R92C_MCUFWDL) & R92C_MCUFWDL_RDY)
r88e_fw_reset(sc, RTWN_FW_RESET_SHUTDOWN);
#endif
/* Reset MCU ready status. */
rtwn_write_1(sc, R92C_MCUFWDL, 0);
/* Disable 32k. */
rtwn_setbits_1(sc, R88E_32K_CTRL, 0x01, 0);
/* Move card to Disabled state. */
/* Turn off RF. */
rtwn_write_1(sc, R92C_RF_CTRL, 0);
/* LDO Sleep mode. */
rtwn_setbits_1(sc, R92C_LPLDO_CTRL, 0, R92C_LPLDO_CTRL_SLEEP);
/* Turn off MAC by HW state machine */
rtwn_setbits_1_shift(sc, R92C_APS_FSMCO, 0,
R92C_APS_FSMCO_APFM_OFF, 1);
for (ntries = 0; ntries < 10; ntries++) {
/* Wait until it will be disabled. */
if ((rtwn_read_2(sc, R92C_APS_FSMCO) &
R92C_APS_FSMCO_APFM_OFF) == 0)
break;
rtwn_delay(sc, 5000);
}
if (ntries == 10) {
device_printf(sc->sc_dev, "%s: could not turn off MAC\n",
__func__);
return;
}
/* schmit trigger */
rtwn_setbits_1(sc, R92C_AFE_XTAL_CTRL + 2, 0, 0x80);
/* Enable WL suspend. */
rtwn_setbits_1_shift(sc, R92C_APS_FSMCO,
R92C_APS_FSMCO_AFSM_PCIE, R92C_APS_FSMCO_AFSM_HSUS, 1);
/* Enable bandgap mbias in suspend. */
rtwn_write_1(sc, R92C_APS_FSMCO + 3, 0);
/* Clear SIC_EN register. */
rtwn_setbits_1(sc, R92C_GPIO_MUXCFG + 1, 0x10, 0);
/* Set USB suspend enable local register */
rtwn_setbits_1(sc, R92C_USB_SUSPEND, 0, 0x10);
/* Reset MCU IO Wrapper. */
reg = rtwn_read_1(sc, R92C_RSV_CTRL + 1);
rtwn_write_1(sc, R92C_RSV_CTRL + 1, reg & ~0x08);
rtwn_write_1(sc, R92C_RSV_CTRL + 1, reg | 0x08);
/* marked as 'For Power Consumption' code. */
rtwn_write_1(sc, R92C_GPIO_OUT, rtwn_read_1(sc, R92C_GPIO_IN));
rtwn_write_1(sc, R92C_GPIO_IOSEL, 0xff);
rtwn_write_1(sc, R92C_GPIO_IO_SEL,
rtwn_read_1(sc, R92C_GPIO_IO_SEL) << 4);
rtwn_setbits_1(sc, R92C_GPIO_MOD, 0, 0x0f);
/* Set LNA, TRSW, EX_PA Pin to output mode. */
rtwn_write_4(sc, R88E_BB_PAD_CTRL, 0x00080808);
}
void
r88eu_init_intr(struct rtwn_softc *sc)
{
/* TODO: adjust */
rtwn_write_4(sc, R88E_HISR, 0xffffffff);
rtwn_write_4(sc, R88E_HIMR, R88E_HIMR_CPWM | R88E_HIMR_CPWM2 |
R88E_HIMR_TBDER | R88E_HIMR_PSTIMEOUT);
rtwn_write_4(sc, R88E_HIMRE, R88E_HIMRE_RXFOVW |
R88E_HIMRE_TXFOVW | R88E_HIMRE_RXERR | R88E_HIMRE_TXERR);
rtwn_setbits_1(sc, R92C_USB_SPECIAL_OPTION, 0,
R92C_USB_SPECIAL_OPTION_INT_BULK_SEL);
}
void
r88eu_init_rx_agg(struct rtwn_softc *sc)
{
/* XXX merge? */
rtwn_setbits_1(sc, R92C_TRXDMA_CTRL, 0,
R92C_TRXDMA_CTRL_RXDMA_AGG_EN);
/* XXX dehardcode */
rtwn_write_1(sc, R92C_RXDMA_AGG_PG_TH, 48);
rtwn_write_1(sc, R92C_RXDMA_AGG_PG_TH + 1, 4);
}
void
r88eu_post_init(struct rtwn_softc *sc)
{
/* Enable per-packet TX report. */
rtwn_setbits_1(sc, R88E_TX_RPT_CTRL, 0, R88E_TX_RPT1_ENA);
/* Disable Tx if MACID is not associated. */
rtwn_write_4(sc, R88E_MACID_NO_LINK, 0xffffffff);
rtwn_write_4(sc, R88E_MACID_NO_LINK + 4, 0xffffffff);
r88e_macid_enable_link(sc, RTWN_MACID_BC, 1);
/* Perform LO and IQ calibrations. */
r88e_iq_calib(sc);
/* Perform LC calibration. */
r92c_lc_calib(sc);
rtwn_write_1(sc, R92C_USB_HRPWM, 0);
if (sc->sc_ratectl_sysctl == RTWN_RATECTL_FW) {
/* No support (yet?) for f/w rate adaptation. */
sc->sc_ratectl = RTWN_RATECTL_NET80211;
} else
sc->sc_ratectl = sc->sc_ratectl_sysctl;
}
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