FreeBSD/Linux Kernel Cross Reference
sys/dev/pcmcia/esl_pcmcia.c

     /*      $NetBSD: esl_pcmcia.c,v 1.8 2002/10/02 16:52:06 thorpej Exp $   */
     
     /*
      * Copyright (c) 2000 Jared D. McNeill <jmcneill@invisible.yi.org>
      * 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.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed by Jared D. McNeill.
     * 4. Neither the name of the author nor the names of any contributors may
     *    be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * 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.
     *
     */
    
    #include <sys/cdefs.h>
    __KERNEL_RCSID(0, "$NetBSD: esl_pcmcia.c,v 1.8 2002/10/02 16:52:06 thorpej Exp $");
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/device.h>
    #include <sys/buf.h>
    #include <sys/audioio.h>
    
    #include <machine/bus.h>
    #include <machine/intr.h>
    
    #include <dev/audio_if.h>
    
    #include <dev/pcmcia/pcmciareg.h>
    #include <dev/pcmcia/pcmciavar.h>
    #include <dev/pcmcia/pcmciadevs.h>
    
    #include <dev/isa/essreg.h>
    #include <dev/pcmcia/eslvar.h>
    
    static const struct esl_pcmcia_product {
            char *name;
            int32_t manufacturer;
            int32_t product;
            char *cis_info[4];
            int function;
    } esl_pcmcia_products[] = {
            { PCMCIA_STR_EIGERLABS_EPX_AA2000,
              PCMCIA_VENDOR_INVALID, PCMCIA_PRODUCT_INVALID,
              PCMCIA_CIS_EIGERLABS_EPX_AA2000, 0 },
    
            { NULL }
    };
    
    int     esl_pcmcia_match(struct device *, struct cfdata *, void *); 
    void    esl_pcmcia_attach(struct device *, struct device *, void *);  
    int     esl_pcmcia_detach(struct device *, int);
    
    int     esl_pcmcia_enable(struct esl_pcmcia_softc *);
    void    esl_pcmcia_disable(struct esl_pcmcia_softc *);
    
    CFATTACH_DECL(esl_pcmcia, sizeof(struct esl_pcmcia_softc),
        esl_pcmcia_match, esl_pcmcia_attach, esl_pcmcia_detach, NULL);
    
    #define ESL_NDEVS (sizeof(esl_pcmcia_products) / sizeof(esl_pcmcia_products[0]))
    
    #define esl_pcmcia_product_lookup(card, fct, n) \
            (((card)->manufacturer != PCMCIA_VENDOR_INVALID) && \
             ((card)->product != PCMCIA_PRODUCT_INVALID) && \
             (esl_pcmcia_products[(n)].cis_info[0]) && \
             (esl_pcmcia_products[(n)].cis_info[1]) && \
             (strcmp((card)->cis1_info[0], esl_pcmcia_products[(n)].cis_info[0]) \
                == 0) && \
             (strcmp((card)->cis1_info[1], esl_pcmcia_products[(n)].cis_info[1]) \
                == 0) && \
             ((fct) == esl_pcmcia_products[(n)].function) ? \
             &esl_pcmcia_products[(n)] : NULL)
    
    int
    esl_pcmcia_match(struct device *parent, struct cfdata *match, void *aux)
    {
            struct pcmcia_attach_args *pa = aux;
            int i;
   
           for (i = 0; i < ESL_NDEVS; i++)
                   if (esl_pcmcia_product_lookup(pa->card, pa->pf->number, i))
                           return (2); 
   
           return (0);
   }
   
   void
   esl_pcmcia_attach(struct device *parent, struct device *self, void *aux)
   {
           struct esl_pcmcia_softc *esc = (void *)self;
           struct pcmcia_attach_args *pa = aux;
           struct pcmcia_config_entry *cfe;
           struct pcmcia_function *pf = pa->pf;
           const struct esl_pcmcia_product *pp;
           int i;
   
           esc->sc_pf = pf;
   
           SIMPLEQ_FOREACH(cfe, &pf->cfe_head, cfe_list) {
                   if (cfe->num_memspace != 0 ||
                       cfe->num_iospace != 1)
                           continue;
   
                   if (pcmcia_io_alloc(pa->pf, cfe->iospace[0].start,
                       cfe->iospace[0].length, 0, &esc->sc_pcioh) == 0)
                           break;
           }
   
           if (cfe == 0) {
                   printf(": can't alloc i/o space\n");
                   goto no_config_entry;
           }
   
           /* Setup power management hooks */
           esc->sc_enable = esl_pcmcia_enable;
           esc->sc_disable = esl_pcmcia_disable;
   
           /* Enable the card. */
           pcmcia_function_init(pf, cfe);
           if (pcmcia_function_enable(pf)) {
                   printf(": function enable failed\n");
                   goto enable_failed;
           }
   
           /* Map in the I/O space */
           if (pcmcia_io_map(pa->pf, PCMCIA_WIDTH_AUTO, 0, esc->sc_pcioh.size,
               &esc->sc_pcioh, &esc->sc_io_window)) {
                   printf(": can't map i/o space\n");
                   goto iomap_failed;
           }
   
           pp = NULL;
           for (i = 0; i < ESL_NDEVS; i++) {
                   pp = esl_pcmcia_product_lookup(pa->card, pa->pf->number, i);
                   if (pp != NULL)
                           break;
           }
   
           if (pp == NULL) {
                   printf("\n");
                   panic("esl_pcmcia_attach: impossible");
           }
   
           printf(": %s\n", pp->name);
   
           if (esl_init(esc)) {
                   printf("esl_init: failed\n");
                   goto init_failed;
           }
   
           pcmcia_function_disable(esc->sc_pf);
           return;
   
   init_failed:
           /* Unmap I/O space */
           pcmcia_io_unmap(esc->sc_pf, esc->sc_io_window);
   
   iomap_failed:
           /* Disable the device. */
           pcmcia_function_disable(esc->sc_pf);
   
   enable_failed:
           /* Free our I/O space. */
           pcmcia_io_free(esc->sc_pf, &esc->sc_pcioh);
   
   no_config_entry:
           return;
   }
   
   int
   esl_pcmcia_detach(struct device *self, int flags)
   {
           struct esl_pcmcia_softc *esc = (void *)self;
           int rv = 0;
   
           if (esc->sc_io_window == -1)
                   /* Nothing to detach */
                   return (0);
   
           if (esc->sc_opldev != NULL)
                   config_detach(esc->sc_opldev, flags);
           if (esc->sc_audiodev != NULL)
                   rv = config_detach(esc->sc_audiodev, flags);
           if (rv)
                   return (rv);
   
           /* unmap i/o window and i/o space */
           pcmcia_io_unmap(esc->sc_pf, esc->sc_io_window);
           pcmcia_io_free(esc->sc_pf, &esc->sc_pcioh);
   
           return (rv);
   }
   
   int
   esl_pcmcia_enable(struct esl_pcmcia_softc *sc)
   {
   
           /* Establish an interrupt */
           sc->sc_ih = pcmcia_intr_establish(sc->sc_pf, IPL_AUDIO, esl_intr,
               sc);
           if (sc->sc_ih == NULL) {
                   printf("%s: couldn't establish interrupt\n",
                       sc->sc_esl.sc_dev.dv_xname);
                   goto fail_1;
           }
   
           if (pcmcia_function_enable(sc->sc_pf))
                   goto fail_2;
   
           return (0);
   
   fail_2:
           pcmcia_intr_disestablish(sc->sc_pf, sc->sc_ih);
   fail_1:
           return (1);
   }
   
   void
   esl_pcmcia_disable(struct esl_pcmcia_softc *sc)
   {
   
           pcmcia_function_disable(sc->sc_pf);
           pcmcia_intr_disestablish(sc->sc_pf, sc->sc_ih);
   }

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