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freebsd-dev/sys/isa/pnpparse.c
tanimura 4b24af17f5 Finally merge newmidi. 
(I had been busy for my own research activity until the last weekend)

Supported devices:

SB Midi Port			(sbc + midi)
SB OPL3				(sbc + midi)
16550 UART			(midi, needs a trick in your hint)
CS461x Midi Port		(csa + midi)

OSS-compatible sequencer	(seq)

Supported playing software:

playmidi			(We definitely need more)

Notes:

/dev/midistat now reports installed midi drivers. /dev/sndstat reports
only pcm drivers. We need the new name(pcmstat?).

EMU8000(SB AWE) does not sound yet but does get probed so that the OPL3
synth on an AWE card works.

TODO:

MSS/PCI bridge drivers
Midi-tty interface to support general serial devices
Modules
2000-07-11 11:49:33 +00:00

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/*-
* Copyright (c) 1999 Doug Rabson
* 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.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <isa/isavar.h>
#include <isa/pnpreg.h>
#include <isa/pnpvar.h>
#define MAXDEP 8
#define I16(p) ((p)[0] + ((p)[1] << 8))
#define I32(p) (I16(p) + (I16(p+2) << 16))
/*
* Parse resource data for Logical Devices.
*
* This function exits as soon as it gets an error reading *ANY*
* Resource Data or it reaches the end of Resource Data.
*/
void
pnp_parse_resources(device_t dev, u_char *resources, int len, u_int32_t vendor_id, u_int32_t logical_id, int ldn)
{
device_t parent = device_get_parent(dev);
u_char tag, *resp, *resinfo;
int large_len, scanning = len;
u_int32_t id, compat_id;
struct isa_config *config;
int ncfgs = 1;
int priorities[1 + MAXDEP];
struct isa_config *configs;
char buf[100];
int i;
id = isa_get_logicalid(dev);
configs = (struct isa_config *)malloc(sizeof(*configs) * (1 + MAXDEP),
M_DEVBUF, M_NOWAIT);
if (configs == NULL) {
device_printf(dev, "No memory to parse PNP data\n");
return;
}
bzero(configs, sizeof(*configs) * (1 + MAXDEP));
config = &configs[0];
priorities[0] = 0;
resp = resources;
while (scanning > 0) {
tag = *resp++;
scanning--;
if (PNP_RES_TYPE(tag) == 0) {
/* Small resource */
if (scanning < PNP_SRES_LEN(tag)) {
scanning = 0;
continue;
}
resinfo = resp;
resp += PNP_SRES_LEN(tag);
scanning -= PNP_SRES_LEN(tag);;
switch (PNP_SRES_NUM(tag)) {
case PNP_TAG_COMPAT_DEVICE:
/*
* Got a compatible device id
* resource. Should keep a list of
* compat ids in the device.
*/
bcopy(resinfo, &compat_id, 4);
isa_set_compatid(dev, compat_id);
break;
case PNP_TAG_IRQ_FORMAT:
if (!I16(resinfo))
break;
if (bootverbose) {
printf("%s: adding irq mask %#02x\n",
pnp_eisaformat(id),
I16(resinfo));
}
if (config->ic_nirq == ISA_NIRQ) {
device_printf(parent, "too many irqs\n");
scanning = 0;
break;
}
config->ic_irqmask[config->ic_nirq] =
I16(resinfo);
config->ic_nirq++;
break;
case PNP_TAG_DMA_FORMAT:
if (bootverbose) {
printf("%s: adding dma mask %#02x\n",
pnp_eisaformat(id),
resinfo[0]);
}
if (config->ic_ndrq == ISA_NDRQ) {
device_printf(parent, "too many drqs\n");
scanning = 0;
break;
}
config->ic_drqmask[config->ic_ndrq] =
resinfo[0];
config->ic_ndrq++;
break;
case PNP_TAG_START_DEPENDANT:
if (bootverbose) {
printf("%s: start dependant\n",
pnp_eisaformat(id));
}
if (ncfgs > MAXDEP) {
device_printf(parent, "too many dependant configs (%d)\n", MAXDEP);
scanning = 0;
break;
}
config = &configs[ncfgs];
/*
* If the priority is not specified,
* then use the default of
* 'acceptable'
*/
if (PNP_SRES_LEN(tag) > 0)
priorities[ncfgs] = resinfo[0];
else
priorities[ncfgs] = 1;
ncfgs++;
break;
case PNP_TAG_END_DEPENDANT:
if (bootverbose) {
printf("%s: end dependant\n",
pnp_eisaformat(id));
}
config = &configs[0]; /* back to main config */
break;
case PNP_TAG_IO_RANGE:
if (bootverbose) {
printf("%s: adding io range "
"%#x-%#x, size=%#x, "
"align=%#x\n",
pnp_eisaformat(id),
I16(resinfo + 1),
I16(resinfo + 3) + resinfo[6]-1,
resinfo[6],
resinfo[5]);
}
if (config->ic_nport == ISA_NPORT) {
device_printf(parent, "too many ports\n");
scanning = 0;
break;
}
config->ic_port[config->ic_nport].ir_start =
I16(resinfo + 1);
config->ic_port[config->ic_nport].ir_end =
I16(resinfo + 3) + resinfo[6] - 1;
config->ic_port[config->ic_nport].ir_size =
resinfo[6];
if (resinfo[5] == 0) {
/* Make sure align is at least one */
resinfo[5] = 1;
}
config->ic_port[config->ic_nport].ir_align =
resinfo[5];
config->ic_nport++;
pnp_check_quirks(vendor_id,
logical_id,
ldn, config);
break;
case PNP_TAG_IO_FIXED:
if (bootverbose) {
printf("%s: adding fixed io range "
"%#x-%#x, size=%#x, "
"align=%#x\n",
pnp_eisaformat(id),
I16(resinfo),
I16(resinfo) + resinfo[2] - 1,
resinfo[2],
1);
}
if (config->ic_nport == ISA_NPORT) {
device_printf(parent, "too many ports\n");
scanning = 0;
break;
}
config->ic_port[config->ic_nport].ir_start =
I16(resinfo);
config->ic_port[config->ic_nport].ir_end =
I16(resinfo) + resinfo[2] - 1;
config->ic_port[config->ic_nport].ir_size
= resinfo[2];
config->ic_port[config->ic_nport].ir_align = 1;
config->ic_nport++;
break;
case PNP_TAG_END:
if (bootverbose) {
printf("%s: end config\n",
pnp_eisaformat(id));
}
scanning = 0;
break;
default:
/* Skip this resource */
device_printf(parent, "unexpected small tag %d\n",
PNP_SRES_NUM(tag));
break;
}
} else {
/* Large resource */
if (scanning < 2) {
scanning = 0;
continue;
}
large_len = I16(resp);
resp += 2;
scanning -= 2;
if (scanning < large_len) {
scanning = 0;
continue;
}
resinfo = resp;
resp += large_len;
scanning -= large_len;
switch (PNP_LRES_NUM(tag)) {
case PNP_TAG_ID_ANSI:
if (large_len > sizeof(buf) - 1)
large_len = sizeof(buf) - 1;
bcopy(resinfo, buf, large_len);
/*
* Trim trailing spaces and garbage.
*/
while (large_len > 0 && buf[large_len - 1] <= ' ')
large_len--;
buf[large_len] = '\0';
device_set_desc_copy(dev, buf);
break;
case PNP_TAG_MEMORY_RANGE:
if (bootverbose) {
int temp = I16(resinfo + 7) << 8;
printf("%s: adding memory range "
"%#x-%#x, size=%#x, "
"align=%#x\n",
pnp_eisaformat(id),
I16(resinfo + 1)<<8,
(I16(resinfo + 3)<<8) + temp - 1,
temp,
I16(resinfo + 5));
}
if (config->ic_nmem == ISA_NMEM) {
device_printf(parent, "too many memory ranges\n");
scanning = 0;
break;
}
config->ic_mem[config->ic_nmem].ir_start =
I16(resinfo + 1)<<8;
config->ic_mem[config->ic_nmem].ir_end =
(I16(resinfo + 3)<<8)
+ (I16(resinfo + 7) << 8) - 1;
config->ic_mem[config->ic_nmem].ir_size =
I16(resinfo + 7) << 8;
config->ic_mem[config->ic_nmem].ir_align =
I16(resinfo + 5);
if (!config->ic_mem[config->ic_nmem].ir_align)
config->ic_mem[config->ic_nmem]
.ir_align = 0x10000;
config->ic_nmem++;
break;
case PNP_TAG_MEMORY32_RANGE:
if (bootverbose) {
printf("%s: adding memory32 range "
"%#x-%#x, size=%#x, "
"align=%#x\n",
pnp_eisaformat(id),
I32(resinfo + 1),
I32(resinfo + 5)
+ I32(resinfo + 13) - 1,
I32(resinfo + 13),
I32(resinfo + 9));
}
if (config->ic_nmem == ISA_NMEM) {
device_printf(parent, "too many memory ranges\n");
scanning = 0;
break;
}
config->ic_mem[config->ic_nmem].ir_start =
I32(resinfo + 1);
config->ic_mem[config->ic_nmem].ir_end =
I32(resinfo + 5)
+ I32(resinfo + 13) - 1;
config->ic_mem[config->ic_nmem].ir_size =
I32(resinfo + 13);
config->ic_mem[config->ic_nmem].ir_align =
I32(resinfo + 9);
config->ic_nmem++;
break;
case PNP_TAG_MEMORY32_FIXED:
if (I32(resinfo + 5) == 0) {
if (bootverbose) {
printf("%s: skipping empty range\n",
pnp_eisaformat(id));
}
continue;
}
if (bootverbose) {
printf("%s: adding fixed memory32 range "
"%#x-%#x, size=%#x\n",
pnp_eisaformat(id),
I32(resinfo + 1),
I32(resinfo + 1)
+ I32(resinfo + 5) - 1,
I32(resinfo + 5));
}
if (config->ic_nmem == ISA_NMEM) {
device_printf(parent, "too many memory ranges\n");
scanning = 0;
break;
}
config->ic_mem[config->ic_nmem].ir_start =
I32(resinfo + 1);
config->ic_mem[config->ic_nmem].ir_end =
I32(resinfo + 1)
+ I32(resinfo + 5) - 1;
config->ic_mem[config->ic_nmem].ir_size =
I32(resinfo + 5);
config->ic_mem[config->ic_nmem].ir_align = 1;
config->ic_nmem++;
break;
default:
/* Skip this resource */
device_printf(parent, "unexpected large tag %d\n",
PNP_SRES_NUM(tag));
}
}
}
if(ncfgs == 1) {
/* Single config without dependants */
(void)ISA_ADD_CONFIG(parent, dev, priorities[0], &configs[0]);
free(configs, M_DEVBUF);
return;
}
/* Cycle through dependant configs merging primary details */
for(i = 1; i < ncfgs; i++) {
int j;
config = &configs[i];
for(j = 0; j < configs[0].ic_nmem; j++) {
if (config->ic_nmem == ISA_NMEM) {
device_printf(parent, "too many memory ranges\n");
free(configs, M_DEVBUF);
return;
}
config->ic_mem[config->ic_nmem] = configs[0].ic_mem[j];
config->ic_nmem++;
}
for(j = 0; j < configs[0].ic_nport; j++) {
if (config->ic_nport == ISA_NPORT) {
device_printf(parent, "too many port ranges\n");
free(configs, M_DEVBUF);
return;
}
config->ic_port[config->ic_nport] = configs[0].ic_port[j];
config->ic_nport++;
}
for(j = 0; j < configs[0].ic_nirq; j++) {
if (config->ic_nirq == ISA_NIRQ) {
device_printf(parent, "too many irq ranges\n");
free(configs, M_DEVBUF);
return;
}
config->ic_irqmask[config->ic_nirq] = configs[0].ic_irqmask[j];
config->ic_nirq++;
}
for(j = 0; j < configs[0].ic_ndrq; j++) {
if (config->ic_ndrq == ISA_NDRQ) {
device_printf(parent, "too many drq ranges\n");
free(configs, M_DEVBUF);
return;
}
config->ic_drqmask[config->ic_ndrq] = configs[0].ic_drqmask[j];
config->ic_ndrq++;
}
(void)ISA_ADD_CONFIG(parent, dev, priorities[i], &configs[i]);
}
free(configs, M_DEVBUF);
}
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