The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/dev/sound/isa/sbc.c

Version: -  FREEBSD  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-2  -  FREEBSD-11-1  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-4  -  FREEBSD-10-3  -  FREEBSD-10-2  -  FREEBSD-10-1  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-3  -  FREEBSD-9-2  -  FREEBSD-9-1  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-4  -  FREEBSD-8-3  -  FREEBSD-8-2  -  FREEBSD-8-1  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-4  -  FREEBSD-7-3  -  FREEBSD-7-2  -  FREEBSD-7-1  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-4  -  FREEBSD-6-3  -  FREEBSD-6-2  -  FREEBSD-6-1  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-5  -  FREEBSD-5-4  -  FREEBSD-5-3  -  FREEBSD-5-2  -  FREEBSD-5-1  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  linux-2.6  -  linux-2.4.22  -  MK83  -  MK84  -  PLAN9  -  DFBSD  -  NETBSD  -  NETBSD5  -  NETBSD4  -  NETBSD3  -  NETBSD20  -  OPENBSD  -  xnu-517  -  xnu-792  -  xnu-792.6.70  -  xnu-1228  -  xnu-1456.1.26  -  xnu-1699.24.8  -  xnu-2050.18.24  -  OPENSOLARIS  -  minix-3-1-1 
SearchContext: -  none  -  3  -  10 

    1 /*-
    2  * Copyright (c) 1999 Seigo Tanimura
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  */
   26 
   27 #ifdef HAVE_KERNEL_OPTION_HEADERS
   28 #include "opt_snd.h"
   29 #endif
   30 
   31 #include <dev/sound/chip.h>
   32 #include <dev/sound/pcm/sound.h>
   33 #include <dev/sound/isa/sb.h>
   34 
   35 #include <isa/isavar.h>
   36 
   37 SND_DECLARE_FILE("$FreeBSD: releng/11.2/sys/dev/sound/isa/sbc.c 331722 2018-03-29 02:50:57Z eadler $");
   38 
   39 #define IO_MAX  3
   40 #define IRQ_MAX 1
   41 #define DRQ_MAX 2
   42 #define INTR_MAX        2
   43 
   44 struct sbc_softc;
   45 
   46 struct sbc_ihl {
   47         driver_intr_t *intr[INTR_MAX];
   48         void *intr_arg[INTR_MAX];
   49         struct sbc_softc *parent;
   50 };
   51 
   52 /* Here is the parameter structure per a device. */
   53 struct sbc_softc {
   54         device_t dev; /* device */
   55         device_t child_pcm, child_midi1, child_midi2;
   56 
   57         int io_rid[IO_MAX]; /* io port rids */
   58         struct resource *io[IO_MAX]; /* io port resources */
   59         int io_alloced[IO_MAX]; /* io port alloc flag */
   60 
   61         int irq_rid[IRQ_MAX]; /* irq rids */
   62         struct resource *irq[IRQ_MAX]; /* irq resources */
   63         int irq_alloced[IRQ_MAX]; /* irq alloc flag */
   64 
   65         int drq_rid[DRQ_MAX]; /* drq rids */
   66         struct resource *drq[DRQ_MAX]; /* drq resources */
   67         int drq_alloced[DRQ_MAX]; /* drq alloc flag */
   68 
   69         struct sbc_ihl ihl[IRQ_MAX];
   70 
   71         void *ih[IRQ_MAX];
   72 
   73         struct mtx *lock;
   74 
   75         u_int32_t bd_ver;
   76 };
   77 
   78 static int sbc_probe(device_t dev);
   79 static int sbc_attach(device_t dev);
   80 static void sbc_intr(void *p);
   81 
   82 static struct resource *sbc_alloc_resource(device_t bus, device_t child, int type, int *rid,
   83                                            rman_res_t start, rman_res_t end, rman_res_t count, u_int flags);
   84 static int sbc_release_resource(device_t bus, device_t child, int type, int rid,
   85                                 struct resource *r);
   86 static int sbc_setup_intr(device_t dev, device_t child, struct resource *irq,
   87                int flags,
   88                driver_filter_t *filter,
   89                driver_intr_t *intr, 
   90                void *arg, void **cookiep);
   91 static int sbc_teardown_intr(device_t dev, device_t child, struct resource *irq,
   92                   void *cookie);
   93 
   94 static int alloc_resource(struct sbc_softc *scp);
   95 static int release_resource(struct sbc_softc *scp);
   96 
   97 static devclass_t sbc_devclass;
   98 
   99 static int io_range[3] = {0x10, 0x2, 0x4};
  100 
  101 #ifdef PC98 /* I/O address table for PC98 */
  102 static bus_addr_t pcm_iat[] = {
  103         0x000, 0x100, 0x200, 0x300, 0x400, 0x500, 0x600, 0x700,
  104         0x800, 0x900, 0xa00, 0xb00, 0xc00, 0xd00, 0xe00, 0xf00
  105 };
  106 static bus_addr_t midi_iat[] = {
  107         0x000, 0x100
  108 };
  109 static bus_addr_t opl_iat[] = {
  110         0x000, 0x100, 0x200, 0x300
  111 };
  112 static bus_addr_t *sb_iat[] = { pcm_iat, midi_iat, opl_iat };
  113 #endif
  114 
  115 static int sb_rd(struct resource *io, int reg);
  116 static void sb_wr(struct resource *io, int reg, u_int8_t val);
  117 static int sb_dspready(struct resource *io);
  118 static int sb_cmd(struct resource *io, u_char val);
  119 static u_int sb_get_byte(struct resource *io);
  120 static void sb_setmixer(struct resource *io, u_int port, u_int value);
  121 
  122 static void
  123 sbc_lockinit(struct sbc_softc *scp)
  124 {
  125         scp->lock = snd_mtxcreate(device_get_nameunit(scp->dev),
  126             "snd_sbc softc");
  127 }
  128 
  129 static void
  130 sbc_lockdestroy(struct sbc_softc *scp)
  131 {
  132         snd_mtxfree(scp->lock);
  133 }
  134 
  135 void
  136 sbc_lock(struct sbc_softc *scp)
  137 {
  138         snd_mtxlock(scp->lock);
  139 }
  140 
  141 void
  142 sbc_lockassert(struct sbc_softc *scp)
  143 {
  144         snd_mtxassert(scp->lock);
  145 }
  146 
  147 void
  148 sbc_unlock(struct sbc_softc *scp)
  149 {
  150         snd_mtxunlock(scp->lock);
  151 }
  152 
  153 static int
  154 sb_rd(struct resource *io, int reg)
  155 {
  156         return bus_space_read_1(rman_get_bustag(io),
  157                                 rman_get_bushandle(io),
  158                                 reg);
  159 }
  160 
  161 static void
  162 sb_wr(struct resource *io, int reg, u_int8_t val)
  163 {
  164         bus_space_write_1(rman_get_bustag(io),
  165                           rman_get_bushandle(io),
  166                           reg, val);
  167 }
  168 
  169 static int
  170 sb_dspready(struct resource *io)
  171 {
  172         return ((sb_rd(io, SBDSP_STATUS) & 0x80) == 0);
  173 }
  174 
  175 static int
  176 sb_dspwr(struct resource *io, u_char val)
  177 {
  178         int  i;
  179 
  180         for (i = 0; i < 1000; i++) {
  181                 if (sb_dspready(io)) {
  182                         sb_wr(io, SBDSP_CMD, val);
  183                         return 1;
  184                 }
  185                 if (i > 10) DELAY((i > 100)? 1000 : 10);
  186         }
  187         printf("sb_dspwr(0x%02x) timed out.\n", val);
  188         return 0;
  189 }
  190 
  191 static int
  192 sb_cmd(struct resource *io, u_char val)
  193 {
  194         return sb_dspwr(io, val);
  195 }
  196 
  197 static void
  198 sb_setmixer(struct resource *io, u_int port, u_int value)
  199 {
  200         u_long   flags;
  201 
  202         flags = spltty();
  203         sb_wr(io, SB_MIX_ADDR, (u_char) (port & 0xff)); /* Select register */
  204         DELAY(10);
  205         sb_wr(io, SB_MIX_DATA, (u_char) (value & 0xff));
  206         DELAY(10);
  207         splx(flags);
  208 }
  209 
  210 static u_int
  211 sb_get_byte(struct resource *io)
  212 {
  213         int i;
  214 
  215         for (i = 1000; i > 0; i--) {
  216                 if (sb_rd(io, DSP_DATA_AVAIL) & 0x80)
  217                         return sb_rd(io, DSP_READ);
  218                 else
  219                         DELAY(20);
  220         }
  221         return 0xffff;
  222 }
  223 
  224 static int
  225 sb_reset_dsp(struct resource *io)
  226 {
  227         sb_wr(io, SBDSP_RST, 3);
  228         DELAY(100);
  229         sb_wr(io, SBDSP_RST, 0);
  230         return (sb_get_byte(io) == 0xAA)? 0 : ENXIO;
  231 }
  232 
  233 static int
  234 sb_identify_board(struct resource *io)
  235 {
  236         int ver, essver, rev;
  237 
  238         sb_cmd(io, DSP_CMD_GETVER);     /* Get version */
  239         ver = (sb_get_byte(io) << 8) | sb_get_byte(io);
  240         if (ver < 0x100 || ver > 0x4ff) return 0;
  241         if (ver == 0x0301) {
  242                 /* Try to detect ESS chips. */
  243                 sb_cmd(io, DSP_CMD_GETID); /* Return ident. bytes. */
  244                 essver = (sb_get_byte(io) << 8) | sb_get_byte(io);
  245                 rev = essver & 0x000f;
  246                 essver &= 0xfff0;
  247                 if (essver == 0x4880) ver |= 0x1000;
  248                 else if (essver == 0x6880) ver = 0x0500 | rev;
  249         }
  250         return ver;
  251 }
  252 
  253 static struct isa_pnp_id sbc_ids[] = {
  254         {0x01008c0e, "Creative ViBRA16C"},              /* CTL0001 */
  255         {0x31008c0e, "Creative SB16/SB32"},             /* CTL0031 */
  256         {0x41008c0e, "Creative SB16/SB32"},             /* CTL0041 */
  257         {0x42008c0e, "Creative SB AWE64"},              /* CTL0042 */
  258         {0x43008c0e, "Creative ViBRA16X"},              /* CTL0043 */
  259         {0x44008c0e, "Creative SB AWE64 Gold"},         /* CTL0044 */
  260         {0x45008c0e, "Creative SB AWE64"},              /* CTL0045 */
  261         {0x46008c0e, "Creative SB AWE64"},              /* CTL0046 */
  262 
  263         {0x01000000, "Avance Logic ALS100+"},           /* @@@0001 - ViBRA16X clone */
  264         {0x01100000, "Avance Asound 110"},              /* @@@1001 */
  265         {0x01200000, "Avance Logic ALS120"},            /* @@@2001 - ViBRA16X clone */
  266 
  267         {0x81167316, "ESS ES1681"},                     /* ESS1681 */
  268         {0x02017316, "ESS ES1688"},                     /* ESS1688 */
  269         {0x68097316, "ESS ES1688"},                     /* ESS1688 */
  270         {0x68187316, "ESS ES1868"},                     /* ESS1868 */
  271         {0x03007316, "ESS ES1869"},                     /* ESS1869 */
  272         {0x69187316, "ESS ES1869"},                     /* ESS1869 */
  273         {0xabb0110e, "ESS ES1869 (Compaq OEM)"},        /* CPQb0ab */
  274         {0xacb0110e, "ESS ES1869 (Compaq OEM)"},        /* CPQb0ac */
  275         {0x78187316, "ESS ES1878"},                     /* ESS1878 */
  276         {0x79187316, "ESS ES1879"},                     /* ESS1879 */
  277         {0x88187316, "ESS ES1888"},                     /* ESS1888 */
  278         {0x07017316, "ESS ES1888 (DEC OEM)"},           /* ESS0107 */
  279         {0x06017316, "ESS ES1888 (Dell OEM)"},          /* ESS0106 */
  280         {0}
  281 };
  282 
  283 static int
  284 sbc_probe(device_t dev)
  285 {
  286         char *s = NULL;
  287         u_int32_t lid, vid;
  288 
  289         lid = isa_get_logicalid(dev);
  290         vid = isa_get_vendorid(dev);
  291         if (lid) {
  292                 if (lid == 0x01000000 && vid != 0x01009305) /* ALS0001 */
  293                         return ENXIO;
  294                 /* Check pnp ids */
  295                 return ISA_PNP_PROBE(device_get_parent(dev), dev, sbc_ids);
  296         } else {
  297                 int rid = 0, ver;
  298                 struct resource *io;
  299 
  300 #ifdef PC98
  301                 io = isa_alloc_resourcev(dev, SYS_RES_IOPORT, &rid,
  302                                          pcm_iat, 16, RF_ACTIVE);
  303 #else
  304                 io = bus_alloc_resource_anywhere(dev, SYS_RES_IOPORT, &rid,
  305                                                  16, RF_ACTIVE);
  306 #endif
  307                 if (!io) goto bad;
  308 #ifdef PC98
  309                 isa_load_resourcev(io, pcm_iat, 16);
  310 #endif
  311                 if (sb_reset_dsp(io)) goto bad2;
  312                 ver = sb_identify_board(io);
  313                 if (ver == 0) goto bad2;
  314                 switch ((ver & 0x00000f00) >> 8) {
  315                 case 1:
  316                         device_set_desc(dev, "SoundBlaster 1.0 (not supported)");
  317                         s = NULL;
  318                         break;
  319 
  320                 case 2:
  321                         s = "SoundBlaster 2.0";
  322                         break;
  323 
  324                 case 3:
  325                         s = (ver & 0x0000f000)? "ESS 488" : "SoundBlaster Pro";
  326                         break;
  327 
  328                 case 4:
  329                         s = "SoundBlaster 16";
  330                         break;
  331 
  332                 case 5:
  333                         s = (ver & 0x00000008)? "ESS 688" : "ESS 1688";
  334                         break;
  335                 }
  336                 if (s) device_set_desc(dev, s);
  337 bad2:           bus_release_resource(dev, SYS_RES_IOPORT, rid, io);
  338 bad:            return s? 0 : ENXIO;
  339         }
  340 }
  341 
  342 static int
  343 sbc_attach(device_t dev)
  344 {
  345         char *err = NULL;
  346         struct sbc_softc *scp;
  347         struct sndcard_func *func;
  348         u_int32_t logical_id = isa_get_logicalid(dev);
  349         int flags = device_get_flags(dev);
  350         int f, dh, dl, x, irq, i;
  351 
  352         if (!logical_id && (flags & DV_F_DUAL_DMA)) {
  353                 bus_set_resource(dev, SYS_RES_DRQ, 1,
  354                                  flags & DV_F_DRQ_MASK, 1);
  355         }
  356 
  357         scp = device_get_softc(dev);
  358         bzero(scp, sizeof(*scp));
  359         scp->dev = dev;
  360         sbc_lockinit(scp);
  361         err = "alloc_resource";
  362         if (alloc_resource(scp)) goto bad;
  363 
  364         err = "sb_reset_dsp";
  365         if (sb_reset_dsp(scp->io[0])) goto bad;
  366         err = "sb_identify_board";
  367         scp->bd_ver = sb_identify_board(scp->io[0]) & 0x00000fff;
  368         if (scp->bd_ver == 0) goto bad;
  369         f = 0;
  370         if (logical_id == 0x01200000 && scp->bd_ver < 0x0400) scp->bd_ver = 0x0499;
  371         switch ((scp->bd_ver & 0x0f00) >> 8) {
  372         case 1: /* old sound blaster has nothing... */
  373                 break;
  374 
  375         case 2:
  376                 f |= BD_F_DUP_MIDI;
  377                 if (scp->bd_ver > 0x200) f |= BD_F_MIX_CT1335;
  378                 break;
  379 
  380         case 5:
  381                 f |= BD_F_ESS;
  382                 scp->bd_ver = 0x0301;
  383         case 3:
  384                 f |= BD_F_DUP_MIDI | BD_F_MIX_CT1345;
  385                 break;
  386 
  387         case 4:
  388                 f |= BD_F_SB16 | BD_F_MIX_CT1745;
  389                 if (scp->drq[0]) dl = rman_get_start(scp->drq[0]); else dl = -1;
  390                 if (scp->drq[1]) dh = rman_get_start(scp->drq[1]); else dh = dl;
  391                 if (!logical_id && (dh < dl)) {
  392                         struct resource *r;
  393                         r = scp->drq[0];
  394                         scp->drq[0] = scp->drq[1];
  395                         scp->drq[1] = r;
  396                         dl = rman_get_start(scp->drq[0]);
  397                         dh = rman_get_start(scp->drq[1]);
  398                 }
  399                 /* soft irq/dma configuration */
  400                 x = -1;
  401                 irq = rman_get_start(scp->irq[0]);
  402 #ifdef PC98
  403                 /* SB16 in PC98 use different IRQ table */
  404                 if      (irq == 3) x = 1;
  405                 else if (irq == 5) x = 8;
  406                 else if (irq == 10) x = 2;
  407                 else if (irq == 12) x = 4;
  408                 if (x == -1) {
  409                         err = "bad irq (3/5/10/12 valid)";
  410                         goto bad;
  411                 }
  412                 else sb_setmixer(scp->io[0], IRQ_NR, x);
  413                 /* SB16 in PC98 use different dma setting */
  414                 sb_setmixer(scp->io[0], DMA_NR, dh == 0 ? 1 : 2);
  415 #else
  416                 if      (irq == 5) x = 2;
  417                 else if (irq == 7) x = 4;
  418                 else if (irq == 9) x = 1;
  419                 else if (irq == 10) x = 8;
  420                 if (x == -1) {
  421                         err = "bad irq (5/7/9/10 valid)";
  422                         goto bad;
  423                 }
  424                 else sb_setmixer(scp->io[0], IRQ_NR, x);
  425                 sb_setmixer(scp->io[0], DMA_NR, (1 << dh) | (1 << dl));
  426 #endif
  427                 if (bootverbose) {
  428                         device_printf(dev, "setting card to irq %d, drq %d", irq, dl);
  429                         if (dl != dh) printf(", %d", dh);
  430                         printf("\n");
  431                 }
  432                 break;
  433         }
  434 
  435         switch (logical_id) {
  436         case 0x43008c0e:        /* CTL0043 */
  437         case 0x01200000:
  438         case 0x01000000:
  439                 f |= BD_F_SB16X;
  440                 break;
  441         }
  442         scp->bd_ver |= f << 16;
  443 
  444         err = "setup_intr";
  445         for (i = 0; i < IRQ_MAX; i++) {
  446                 scp->ihl[i].parent = scp;
  447                 if (snd_setup_intr(dev, scp->irq[i], 0, sbc_intr, &scp->ihl[i], &scp->ih[i]))
  448                         goto bad;
  449         }
  450 
  451         /* PCM Audio */
  452         func = malloc(sizeof(struct sndcard_func), M_DEVBUF, M_NOWAIT | M_ZERO);
  453         if (func == NULL) goto bad;
  454         func->func = SCF_PCM;
  455         scp->child_pcm = device_add_child(dev, "pcm", -1);
  456         device_set_ivars(scp->child_pcm, func);
  457 
  458         /* Midi Interface */
  459         func = malloc(sizeof(struct sndcard_func), M_DEVBUF, M_NOWAIT | M_ZERO);
  460         if (func == NULL) goto bad;
  461         func->func = SCF_MIDI;
  462         scp->child_midi1 = device_add_child(dev, "midi", -1);
  463         device_set_ivars(scp->child_midi1, func);
  464 
  465         /* OPL FM Synthesizer */
  466         func = malloc(sizeof(struct sndcard_func), M_DEVBUF, M_NOWAIT | M_ZERO);
  467         if (func == NULL) goto bad;
  468         func->func = SCF_SYNTH;
  469         scp->child_midi2 = device_add_child(dev, "midi", -1);
  470         device_set_ivars(scp->child_midi2, func);
  471 
  472         /* probe/attach kids */
  473         bus_generic_attach(dev);
  474 
  475         return (0);
  476 
  477 bad:    if (err) device_printf(dev, "%s\n", err);
  478         release_resource(scp);
  479         return (ENXIO);
  480 }
  481 
  482 static int
  483 sbc_detach(device_t dev)
  484 {
  485         struct sbc_softc *scp = device_get_softc(dev);
  486 
  487         sbc_lock(scp);
  488         device_delete_child(dev, scp->child_midi2);
  489         device_delete_child(dev, scp->child_midi1);
  490         device_delete_child(dev, scp->child_pcm);
  491         release_resource(scp);
  492         sbc_lockdestroy(scp);
  493         return bus_generic_detach(dev);
  494 }
  495 
  496 static void
  497 sbc_intr(void *p)
  498 {
  499         struct sbc_ihl *ihl = p;
  500         int i;
  501 
  502         /* sbc_lock(ihl->parent); */
  503         i = 0;
  504         while (i < INTR_MAX) {
  505                 if (ihl->intr[i] != NULL) ihl->intr[i](ihl->intr_arg[i]);
  506                 i++;
  507         }
  508         /* sbc_unlock(ihl->parent); */
  509 }
  510 
  511 static int
  512 sbc_setup_intr(device_t dev, device_t child, struct resource *irq, int flags,
  513                driver_filter_t *filter,
  514                driver_intr_t *intr, 
  515                void *arg, void **cookiep)
  516 {
  517         struct sbc_softc *scp = device_get_softc(dev);
  518         struct sbc_ihl *ihl = NULL;
  519         int i, ret;
  520 
  521         if (filter != NULL) {
  522                 printf("sbc.c: we cannot use a filter here\n");
  523                 return (EINVAL);
  524         }
  525         sbc_lock(scp);
  526         i = 0;
  527         while (i < IRQ_MAX) {
  528                 if (irq == scp->irq[i]) ihl = &scp->ihl[i];
  529                 i++;
  530         }
  531         ret = 0;
  532         if (ihl == NULL) ret = EINVAL;
  533         i = 0;
  534         while ((ret == 0) && (i < INTR_MAX)) {
  535                 if (ihl->intr[i] == NULL) {
  536                         ihl->intr[i] = intr;
  537                         ihl->intr_arg[i] = arg;
  538                         *cookiep = &ihl->intr[i];
  539                         ret = -1;
  540                 } else i++;
  541         }
  542         sbc_unlock(scp);
  543         return (ret > 0)? EINVAL : 0;
  544 }
  545 
  546 static int
  547 sbc_teardown_intr(device_t dev, device_t child, struct resource *irq,
  548                   void *cookie)
  549 {
  550         struct sbc_softc *scp = device_get_softc(dev);
  551         struct sbc_ihl *ihl = NULL;
  552         int i, ret;
  553 
  554         sbc_lock(scp);
  555         i = 0;
  556         while (i < IRQ_MAX) {
  557                 if (irq == scp->irq[i]) ihl = &scp->ihl[i];
  558                 i++;
  559         }
  560         ret = 0;
  561         if (ihl == NULL) ret = EINVAL;
  562         i = 0;
  563         while ((ret == 0) && (i < INTR_MAX)) {
  564                 if (cookie == &ihl->intr[i]) {
  565                         ihl->intr[i] = NULL;
  566                         ihl->intr_arg[i] = NULL;
  567                         return 0;
  568                 } else i++;
  569         }
  570         sbc_unlock(scp);
  571         return (ret > 0)? EINVAL : 0;
  572 }
  573 
  574 static struct resource *
  575 sbc_alloc_resource(device_t bus, device_t child, int type, int *rid,
  576                    rman_res_t start, rman_res_t end, rman_res_t count, u_int flags)
  577 {
  578         struct sbc_softc *scp;
  579         int *alloced, rid_max, alloced_max;
  580         struct resource **res;
  581 #ifdef PC98
  582         int i;
  583 #endif
  584 
  585         scp = device_get_softc(bus);
  586         switch (type) {
  587         case SYS_RES_IOPORT:
  588                 alloced = scp->io_alloced;
  589                 res = scp->io;
  590 #ifdef PC98
  591                 rid_max = 0;
  592                 for (i = 0; i < IO_MAX; i++)
  593                         rid_max += io_range[i];
  594 #else
  595                 rid_max = IO_MAX - 1;
  596 #endif
  597                 alloced_max = 1;
  598                 break;
  599         case SYS_RES_DRQ:
  600                 alloced = scp->drq_alloced;
  601                 res = scp->drq;
  602                 rid_max = DRQ_MAX - 1;
  603                 alloced_max = 1;
  604                 break;
  605         case SYS_RES_IRQ:
  606                 alloced = scp->irq_alloced;
  607                 res = scp->irq;
  608                 rid_max = IRQ_MAX - 1;
  609                 alloced_max = INTR_MAX; /* pcm and mpu may share the irq. */
  610                 break;
  611         default:
  612                 return (NULL);
  613         }
  614 
  615         if (*rid > rid_max || alloced[*rid] == alloced_max)
  616                 return (NULL);
  617 
  618         alloced[*rid]++;
  619         return (res[*rid]);
  620 }
  621 
  622 static int
  623 sbc_release_resource(device_t bus, device_t child, int type, int rid,
  624                         struct resource *r)
  625 {
  626         struct sbc_softc *scp;
  627         int *alloced, rid_max;
  628 
  629         scp = device_get_softc(bus);
  630         switch (type) {
  631         case SYS_RES_IOPORT:
  632                 alloced = scp->io_alloced;
  633                 rid_max = IO_MAX - 1;
  634                 break;
  635         case SYS_RES_DRQ:
  636                 alloced = scp->drq_alloced;
  637                 rid_max = DRQ_MAX - 1;
  638                 break;
  639         case SYS_RES_IRQ:
  640                 alloced = scp->irq_alloced;
  641                 rid_max = IRQ_MAX - 1;
  642                 break;
  643         default:
  644                 return (1);
  645         }
  646 
  647         if (rid > rid_max || alloced[rid] == 0)
  648                 return (1);
  649 
  650         alloced[rid]--;
  651         return (0);
  652 }
  653 
  654 static int
  655 sbc_read_ivar(device_t bus, device_t dev, int index, uintptr_t * result)
  656 {
  657         struct sbc_softc *scp = device_get_softc(bus);
  658         struct sndcard_func *func = device_get_ivars(dev);
  659 
  660         switch (index) {
  661         case 0:
  662                 *result = func->func;
  663                 break;
  664 
  665         case 1:
  666                 *result = scp->bd_ver;
  667                 break;
  668 
  669         default:
  670                 return ENOENT;
  671         }
  672 
  673         return 0;
  674 }
  675 
  676 static int
  677 sbc_write_ivar(device_t bus, device_t dev,
  678                int index, uintptr_t value)
  679 {
  680         switch (index) {
  681         case 0:
  682         case 1:
  683                 return EINVAL;
  684 
  685         default:
  686                 return (ENOENT);
  687         }
  688 }
  689 
  690 static int
  691 alloc_resource(struct sbc_softc *scp)
  692 {
  693         int i;
  694 
  695         for (i = 0 ; i < IO_MAX ; i++) {
  696                 if (scp->io[i] == NULL) {
  697 #ifdef PC98
  698                         scp->io_rid[i] = i > 0 ?
  699                                 scp->io_rid[i - 1] + io_range[i - 1] : 0;
  700                         scp->io[i] = isa_alloc_resourcev(scp->dev,
  701                                                          SYS_RES_IOPORT,
  702                                                          &scp->io_rid[i],
  703                                                          sb_iat[i],
  704                                                          io_range[i],
  705                                                          RF_ACTIVE);
  706                         if (scp->io[i] != NULL)
  707                                 isa_load_resourcev(scp->io[i], sb_iat[i],
  708                                                    io_range[i]);
  709 #else
  710                         scp->io_rid[i] = i;
  711                         scp->io[i] = bus_alloc_resource_anywhere(scp->dev,
  712                                                                  SYS_RES_IOPORT,
  713                                                                  &scp->io_rid[i],
  714                                                                 io_range[i],
  715                                                                 RF_ACTIVE);
  716 #endif
  717                         if (i == 0 && scp->io[i] == NULL)
  718                                 return (1);
  719                         scp->io_alloced[i] = 0;
  720                 }
  721         }
  722         for (i = 0 ; i < DRQ_MAX ; i++) {
  723                 if (scp->drq[i] == NULL) {
  724                         scp->drq_rid[i] = i;
  725                         scp->drq[i] = bus_alloc_resource_any(scp->dev,
  726                                                              SYS_RES_DRQ,
  727                                                              &scp->drq_rid[i],
  728                                                              RF_ACTIVE);
  729                         if (i == 0 && scp->drq[i] == NULL)
  730                                 return (1);
  731                         scp->drq_alloced[i] = 0;
  732                 }
  733         }
  734         for (i = 0 ; i < IRQ_MAX ; i++) {
  735                 if (scp->irq[i] == NULL) {
  736                         scp->irq_rid[i] = i;
  737                         scp->irq[i] = bus_alloc_resource_any(scp->dev,
  738                                                              SYS_RES_IRQ,
  739                                                              &scp->irq_rid[i],
  740                                                              RF_ACTIVE);
  741                         if (i == 0 && scp->irq[i] == NULL)
  742                                 return (1);
  743                         scp->irq_alloced[i] = 0;
  744                 }
  745         }
  746         return (0);
  747 }
  748 
  749 static int
  750 release_resource(struct sbc_softc *scp)
  751 {
  752         int i;
  753 
  754         for (i = 0 ; i < IO_MAX ; i++) {
  755                 if (scp->io[i] != NULL) {
  756                         bus_release_resource(scp->dev, SYS_RES_IOPORT, scp->io_rid[i], scp->io[i]);
  757                         scp->io[i] = NULL;
  758                 }
  759         }
  760         for (i = 0 ; i < DRQ_MAX ; i++) {
  761                 if (scp->drq[i] != NULL) {
  762                         bus_release_resource(scp->dev, SYS_RES_DRQ, scp->drq_rid[i], scp->drq[i]);
  763                         scp->drq[i] = NULL;
  764                 }
  765         }
  766         for (i = 0 ; i < IRQ_MAX ; i++) {
  767                 if (scp->irq[i] != NULL) {
  768                         if (scp->ih[i] != NULL)
  769                                 bus_teardown_intr(scp->dev, scp->irq[i], scp->ih[i]);
  770                         scp->ih[i] = NULL;
  771                         bus_release_resource(scp->dev, SYS_RES_IRQ, scp->irq_rid[i], scp->irq[i]);
  772                         scp->irq[i] = NULL;
  773                 }
  774         }
  775         return (0);
  776 }
  777 
  778 static device_method_t sbc_methods[] = {
  779         /* Device interface */
  780         DEVMETHOD(device_probe,         sbc_probe),
  781         DEVMETHOD(device_attach,        sbc_attach),
  782         DEVMETHOD(device_detach,        sbc_detach),
  783         DEVMETHOD(device_shutdown,      bus_generic_shutdown),
  784         DEVMETHOD(device_suspend,       bus_generic_suspend),
  785         DEVMETHOD(device_resume,        bus_generic_resume),
  786 
  787         /* Bus interface */
  788         DEVMETHOD(bus_read_ivar,        sbc_read_ivar),
  789         DEVMETHOD(bus_write_ivar,       sbc_write_ivar),
  790         DEVMETHOD(bus_alloc_resource,   sbc_alloc_resource),
  791         DEVMETHOD(bus_release_resource, sbc_release_resource),
  792         DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
  793         DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
  794         DEVMETHOD(bus_setup_intr,       sbc_setup_intr),
  795         DEVMETHOD(bus_teardown_intr,    sbc_teardown_intr),
  796 
  797         DEVMETHOD_END
  798 };
  799 
  800 static driver_t sbc_driver = {
  801         "sbc",
  802         sbc_methods,
  803         sizeof(struct sbc_softc),
  804 };
  805 
  806 /* sbc can be attached to an isa bus. */
  807 DRIVER_MODULE(snd_sbc, isa, sbc_driver, sbc_devclass, 0, 0);
  808 DRIVER_MODULE(snd_sbc, acpi, sbc_driver, sbc_devclass, 0, 0);
  809 MODULE_DEPEND(snd_sbc, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
  810 MODULE_VERSION(snd_sbc, 1);

Cache object: f4695d984e0057a93e6b024fcbddc683


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.