diff options
Diffstat (limited to 'sys/i4b/layer1/iwic/i4b_iwic_dchan.c')
| -rw-r--r-- | sys/i4b/layer1/iwic/i4b_iwic_dchan.c | 473 |
1 files changed, 0 insertions, 473 deletions
diff --git a/sys/i4b/layer1/iwic/i4b_iwic_dchan.c b/sys/i4b/layer1/iwic/i4b_iwic_dchan.c deleted file mode 100644 index d33dc295c15a..000000000000 --- a/sys/i4b/layer1/iwic/i4b_iwic_dchan.c +++ /dev/null @@ -1,473 +0,0 @@ -/* - * Copyright (c) 1999, 2000 Dave Boyce. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. 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. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. - * - *--------------------------------------------------------------------------- - * - * i4b_iwic - isdn4bsd Winbond W6692 driver - * ---------------------------------------- - * - * $FreeBSD$ - * - * last edit-date: [Tue Jan 16 13:20:14 2001] - * - *---------------------------------------------------------------------------*/ - -#include "iwic.h" -#include "opt_i4b.h" -#include "pci.h" - -#if (NIWIC > 0) && (NPCI > 0) - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/mbuf.h> -#include <sys/socket.h> - -#include <net/if.h> - - -#include <machine/i4b_debug.h> -#include <machine/i4b_ioctl.h> -#include <machine/i4b_trace.h> - -#include <i4b/layer1/i4b_l1.h> - -#include <i4b/include/i4b_global.h> -#include <i4b/include/i4b_l3l4.h> -#include <i4b/include/i4b_mbuf.h> - -#include <i4b/layer1/iwic/i4b_iwic.h> -#include <i4b/layer1/iwic/i4b_w6692.h> - -#define MAX_DFRAME_LEN 264 - -static void dchan_receive(struct iwic_softc *sc, int ista); - -/*---------------------------------------------------------------------------* - * initialize D-channel variables and registers - *---------------------------------------------------------------------------*/ -void -iwic_dchan_init(struct iwic_softc *sc) -{ - sc->sc_dchan.ibuf = NULL; - sc->sc_dchan.rx_count = 0; - - sc->sc_dchan.obuf = NULL; - sc->sc_dchan.obuf2 = NULL; - sc->sc_dchan.tx_count = 0; - sc->sc_dchan.tx_ready = 0; - - IWIC_WRITE(sc, D_CTL, D_CTL_SRST); - - DELAY(5000); - - IWIC_WRITE(sc, D_CTL, 0); - - IWIC_WRITE(sc, SQX, SQX_SCIE); - - IWIC_WRITE(sc, PCTL, 0x00); - IWIC_WRITE(sc, MOCR, 0x00); - IWIC_WRITE(sc, GCR, 0x00); - - IWIC_WRITE(sc, D_CMDR, D_CMDR_RRST | D_CMDR_XRST); - IWIC_WRITE(sc, D_MODE, D_MODE_RACT); - - IWIC_WRITE(sc, D_SAM, 0xff); - IWIC_WRITE(sc, D_TAM, 0xff); - - IWIC_WRITE(sc, D_EXIM, 0x00); -} - -/*---------------------------------------------------------------------------* - * Extended IRQ handler for the D-channel - *---------------------------------------------------------------------------*/ -void -iwic_dchan_xirq(struct iwic_softc *sc) -{ - int irq_stat; - int stat; - - irq_stat = IWIC_READ(sc, D_EXIR); - - if (irq_stat & D_EXIR_RDOV) - { - NDBGL1(L1_I_ERR, "RDOV in state %s", iwic_printstate(sc)); - IWIC_WRITE(sc, D_CMDR, D_CMDR_RRST); - } - if (irq_stat & D_EXIR_XDUN) - { - NDBGL1(L1_I_ERR, "XDUN in state %s", iwic_printstate(sc)); - sc->sc_dchan.tx_ready = 0; - } - if (irq_stat & D_EXIR_XCOL) - { - NDBGL1(L1_I_ERR, "XCOL in state %s", iwic_printstate(sc)); - IWIC_WRITE(sc, D_CMDR, D_CMDR_XRST); - sc->sc_dchan.tx_ready = 0; - } - if (irq_stat & D_EXIR_TIN2) - { - NDBGL1(L1_I_ERR, "TIN2 in state %s", iwic_printstate(sc)); - } - if (irq_stat & D_EXIR_MOC) - { - stat = IWIC_READ(sc, MOR); - NDBGL1(L1_I_ERR, "MOC in state %s, byte = 0x%x", iwic_printstate(sc), stat); - } - - if (irq_stat & D_EXIR_ISC) - { - stat = (IWIC_READ(sc, CIR)) & 0x0f; - - switch (stat) - { - case CIR_CE: - NDBGL1(L1_I_CICO, "rx CE in state %s", iwic_printstate(sc)); - iwic_next_state(sc, EV_CE); - break; - case CIR_DRD: - NDBGL1(L1_I_CICO, "rx DRD in state %s", iwic_printstate(sc)); - iwic_next_state(sc, EV_INFO0); - i4b_l1_mph_status_ind(L0IWICUNIT(sc->sc_unit), STI_L1STAT, LAYER_IDLE, NULL); - break; - case CIR_LD: - NDBGL1(L1_I_CICO, "rx LD in state %s", iwic_printstate(sc)); - iwic_next_state(sc, EV_RSY); - break; - case CIR_ARD: - NDBGL1(L1_I_CICO, "rx ARD in state %s", iwic_printstate(sc)); - iwic_next_state(sc, EV_INFO2); - break; - case CIR_TI: - NDBGL1(L1_I_CICO, "rx TI in state %s", iwic_printstate(sc)); - iwic_next_state(sc, EV_INFO0); - break; - case CIR_ATI: - NDBGL1(L1_I_CICO, "rx ATI in state %s", iwic_printstate(sc)); - iwic_next_state(sc, EV_INFO0); - break; - case CIR_AI8: - NDBGL1(L1_I_CICO, "rx AI8 in state %s", iwic_printstate(sc)); - i4b_l1_mph_status_ind(L0IWICUNIT(sc->sc_unit), STI_L1STAT, LAYER_ACTIVE, NULL); - iwic_next_state(sc, EV_INFO48); - break; - case CIR_AI10: - NDBGL1(L1_I_CICO, "rx AI10 in state %s", iwic_printstate(sc)); - i4b_l1_mph_status_ind(L0IWICUNIT(sc->sc_unit), STI_L1STAT, LAYER_ACTIVE, NULL); - iwic_next_state(sc, EV_INFO410); - break; - case CIR_CD: - NDBGL1(L1_I_CICO, "rx DIS in state %s", iwic_printstate(sc)); - iwic_next_state(sc, EV_DIS); - break; - default: - NDBGL1(L1_I_ERR, "ERROR, unknown indication 0x%x in state %s", stat, iwic_printstate(sc)); - iwic_next_state(sc, EV_INFO0); - break; - } - } - - if (irq_stat & D_EXIR_TEXP) - { - NDBGL1(L1_I_ERR, "TEXP in state %s", iwic_printstate(sc)); - } - - if (irq_stat & D_EXIR_WEXP) - { - NDBGL1(L1_I_ERR, "WEXP in state %s", iwic_printstate(sc)); - } -} - -/*---------------------------------------------------------------------------* - * All receiving and transmitting takes place here. - *---------------------------------------------------------------------------*/ -void -iwic_dchan_xfer_irq(struct iwic_softc *sc, int ista) -{ - NDBGL1(L1_I_MSG, "ISTA = 0x%x", ista); - - if (ista & (ISTA_D_RMR | ISTA_D_RME)) - { - /* Receive message ready */ - dchan_receive(sc, ista); - } - if (ista & ISTA_D_XFR) - { - /* Transmitter ready */ - sc->sc_dchan.tx_ready = 1; - - iwic_dchan_transmit(sc); - } -} - -/*---------------------------------------------------------------------------* - * disable D-channel - *---------------------------------------------------------------------------*/ -void -iwic_dchan_disable(struct iwic_softc *sc) -{ - int s; - - s = SPLI4B(); - - if (sc->sc_dchan.obuf) - { - if (sc->sc_dchan.free_obuf) - i4b_Dfreembuf(sc->sc_dchan.obuf); - sc->sc_dchan.obuf = NULL; - } - - if (sc->sc_dchan.obuf2) - { - if (sc->sc_dchan.free_obuf2) - i4b_Dfreembuf(sc->sc_dchan.obuf2); - sc->sc_dchan.obuf2 = NULL; - } - - splx(s); - - IWIC_WRITE(sc, CIX, CIX_DRC); -} - -/*---------------------------------------------------------------------------* - * queue D-channel message for transmission - *---------------------------------------------------------------------------*/ -int -iwic_dchan_data_req(struct iwic_softc *sc, struct mbuf *m, int freeflag) -{ - int s; - - if (!m) - return 0; - - s = SPLI4B(); - - /* Queue message */ - - if (sc->sc_dchan.obuf) - { - if (sc->sc_dchan.obuf2) - { - NDBGL1(L1_I_ERR, "no buffer space!"); - } - else - { - sc->sc_dchan.obuf2 = m; - sc->sc_dchan.free_obuf2 = freeflag; - } - } - else - { - sc->sc_dchan.obuf = m; - sc->sc_dchan.obuf_ptr = m->m_data; - sc->sc_dchan.obuf_len = m->m_len; - sc->sc_dchan.free_obuf = freeflag; - } - - iwic_dchan_transmit(sc); - - splx(s); - - return (0); -} - -/*---------------------------------------------------------------------------* - * allocate an mbuf - *---------------------------------------------------------------------------*/ -static void -dchan_get_mbuf(struct iwic_softc *sc, int len) -{ - sc->sc_dchan.ibuf = i4b_Dgetmbuf(len); - - if (!sc->sc_dchan.ibuf) - panic("dchan_get_mbuf: unable to allocate %d bytes for mbuf!\n", len); - - sc->sc_dchan.ibuf_ptr = sc->sc_dchan.ibuf->m_data; - sc->sc_dchan.ibuf_max_len = sc->sc_dchan.ibuf->m_len; - sc->sc_dchan.ibuf_len = 0; -} - -/*---------------------------------------------------------------------------* - * D-channel receive data interrupt - *---------------------------------------------------------------------------*/ -static void -dchan_receive(struct iwic_softc *sc, int ista) -{ - int command = D_CMDR_RACK; - - if (ista & ISTA_D_RMR) - { - /* Got 64 bytes in FIFO */ - - if (!sc->sc_dchan.ibuf) - { - dchan_get_mbuf(sc, MAX_DFRAME_LEN); - - } - else if ((sc->sc_dchan.ibuf_len + MAX_DFRAME_LEN) > - sc->sc_dchan.ibuf_max_len) - { - panic("dchan_receive: not enough space in buffer!\n"); - } - - IWIC_RDDFIFO(sc, sc->sc_dchan.ibuf_ptr, 64); - - sc->sc_dchan.ibuf_ptr += 64; - sc->sc_dchan.ibuf_len += 64; - sc->sc_dchan.rx_count += 64; - } - if (ista & ISTA_D_RME) - { - /* Got end of frame */ - int status; - - status = IWIC_READ(sc, D_RSTA); - - if (status & (D_RSTA_RDOV | D_RSTA_CRCE | D_RSTA_RMB)) - { - if (status & D_RSTA_RDOV) - NDBGL1(L1_I_ERR, "iwic%d: D-channel Receive Data Overflow", sc->sc_unit); - if (status & D_RSTA_CRCE) - NDBGL1(L1_I_ERR, "iwic%d: D-channel CRC Error", sc->sc_unit); - if (status & D_RSTA_RMB) - NDBGL1(L1_I_ERR, "iwic%d: D-channel Receive Message Aborted", sc->sc_unit); - command |= D_CMDR_RRST; - } - else - { - int hi, lo; - int total_frame_len; - - lo = IWIC_READ(sc, D_RBCL); - hi = IWIC_READ(sc, D_RBCH); - total_frame_len = D_RBC(hi, lo); - lo = lo & 0x3f; - - if (lo == 0) - lo = IWIC_DCHAN_FIFO_LEN; - - if (!sc->sc_dchan.ibuf) - { - dchan_get_mbuf(sc, lo); - } - else if ((sc->sc_dchan.ibuf_len + lo) > - sc->sc_dchan.ibuf_max_len) - { - panic("dchan_receive: buffer not long enough"); - } - - IWIC_RDDFIFO(sc, sc->sc_dchan.ibuf_ptr, lo); - sc->sc_dchan.ibuf_len += lo; - sc->sc_dchan.rx_count += lo; - - sc->sc_dchan.ibuf->m_len = sc->sc_dchan.ibuf_len; - - if(sc->sc_trace & TRACE_D_RX) - { - i4b_trace_hdr_t hdr; - hdr.unit = L0IWICUNIT(sc->sc_unit); - hdr.type = TRC_CH_D; - hdr.dir = FROM_NT; - hdr.count = ++sc->sc_dchan.trace_count; - MICROTIME(hdr.time); - i4b_l1_trace_ind(&hdr, sc->sc_dchan.ibuf->m_len, sc->sc_dchan.ibuf->m_data); - } - i4b_l1_ph_data_ind(L0IWICUNIT(sc->sc_unit), sc->sc_dchan.ibuf); - - sc->sc_dchan.ibuf = NULL; - } - } - IWIC_WRITE(sc, D_CMDR, command); -} - -/*---------------------------------------------------------------------------* - * transmit D-channel frame - *---------------------------------------------------------------------------*/ -void -iwic_dchan_transmit(struct iwic_softc *sc) -{ - int cmd; - u_char *ptr; - int len; - - if (!sc->sc_dchan.tx_ready) - return; - - if (!sc->sc_dchan.obuf) - return; - - if (sc->sc_I430state != ST_F7) - return; - - ptr = sc->sc_dchan.obuf_ptr; - len = min(sc->sc_dchan.obuf_len, IWIC_DCHAN_FIFO_LEN); - - if(sc->sc_trace & TRACE_D_TX) - { - i4b_trace_hdr_t hdr; - hdr.unit = L0IWICUNIT(sc->sc_unit); - hdr.type = TRC_CH_D; - hdr.dir = FROM_TE; - hdr.count = ++sc->sc_dchan.trace_count; - MICROTIME(hdr.time); - i4b_l1_trace_ind(&hdr, len, ptr); - } - - IWIC_WRDFIFO(sc, ptr, len); - - sc->sc_dchan.tx_count += len; - - if (len < sc->sc_dchan.obuf_len) - { - sc->sc_dchan.obuf_ptr += len; - sc->sc_dchan.obuf_len -= len; - - cmd = D_CMDR_XMS; - - } - else - { - if (sc->sc_dchan.free_obuf) - i4b_Dfreembuf(sc->sc_dchan.obuf); - - sc->sc_dchan.obuf = NULL; - sc->sc_dchan.obuf_ptr = NULL; - sc->sc_dchan.obuf_len = 0; - - if (sc->sc_dchan.obuf2) - { - sc->sc_dchan.obuf = sc->sc_dchan.obuf2; - sc->sc_dchan.obuf_ptr = sc->sc_dchan.obuf->m_data; - sc->sc_dchan.obuf_len = sc->sc_dchan.obuf->m_len; - sc->sc_dchan.free_obuf = sc->sc_dchan.free_obuf2; - - sc->sc_dchan.obuf2 = NULL; - } - cmd = D_CMDR_XMS | D_CMDR_XME; - } - sc->sc_dchan.tx_ready = 0; - IWIC_WRITE(sc, D_CMDR, cmd); -} - -#endif /* (NIWIC > 0) && (NPCI > 0) */ |