Factor out the PnP resource parser so that it can be re-used by pnpbios
and acpi. Reviewed by: msmith
This commit is contained in:
parent
dd5168ad85
commit
5b45337d82
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=52059
461
sys/isa/pnp.c
461
sys/isa/pnp.c
@ -36,7 +36,6 @@
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#include <isa/isavar.h>
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#include <isa/pnpreg.h>
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#include <isa/pnpvar.h>
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#include <machine/resource.h>
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#include <machine/clock.h>
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typedef struct _pnp_id {
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@ -167,14 +166,15 @@ pnp_get_serial(pnp_id *p)
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/*
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* Fill's the buffer with resource info from the device.
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* Returns 0 if the device fails to report
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* Returns the number of characters read.
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*/
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static int
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pnp_get_resource_info(u_char *buffer, int len)
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{
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int i, j;
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int i, j, count;
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u_char temp;
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count = 0;
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for (i = 0; i < len; i++) {
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outb(_PNP_ADDRESS, PNP_STATUS);
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for (j = 0; j < 100; j++) {
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@ -184,14 +184,15 @@ pnp_get_resource_info(u_char *buffer, int len)
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}
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if (j == 100) {
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printf("PnP device failed to report resource data\n");
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return 0;
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return count;
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}
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outb(_PNP_ADDRESS, PNP_RESOURCE_DATA);
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temp = inb((pnp_rd_port << 2) | 0x3);
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if (buffer != NULL)
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buffer[i] = temp;
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count++;
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}
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return 1;
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return count;
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}
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#if 0
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@ -367,272 +368,239 @@ pnp_check_quirks(u_int32_t vendor_id, u_int32_t logical_id, int ldn)
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* Scan Resource Data for Logical Devices.
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*
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* This function exits as soon as it gets an error reading *ANY*
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* Resource Data or ir reaches the end of Resource Data. In the first
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* Resource Data or it reaches the end of Resource Data. In the first
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* case the return value will be TRUE, FALSE otherwise.
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*/
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static int
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pnp_scan_resdata(device_t parent, pnp_id *p, int csn)
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pnp_create_devices(device_t parent, pnp_id *p, int csn,
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u_char *resources, int len)
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{
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u_char tag, resinfo[16];
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int large_len, scanning = 1024, retval = FALSE;
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u_char tag, *resp, *resinfo, *startres = 0;
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int large_len, scanning = len, retval = FALSE;
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u_int32_t logical_id;
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u_int32_t compat_id;
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device_t dev = 0;
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int ldn = 0;
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struct isa_config card, logdev, alt;
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struct isa_config *config;
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struct pnp_set_config_arg *csnldn;
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int priority = 0;
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int seenalt = 0;
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char buf[100];
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char *desc = 0;
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bzero(&card, sizeof card);
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bzero(&logdev, sizeof logdev);
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bzero(&alt, sizeof alt);
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config = &card;
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while (scanning-- > 0 && pnp_get_resource_info(&tag, 1)) {
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if (PNP_RES_TYPE(tag) == 0) {
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/* Small resource */
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if (pnp_get_resource_info(resinfo,
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PNP_SRES_LEN(tag)) == 0) {
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scanning = 0;
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continue;
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}
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switch (PNP_SRES_NUM(tag)) {
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case PNP_TAG_LOGICAL_DEVICE:
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/*
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* A new logical device. Scan
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* resourcea and add device.
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*/
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bcopy(resinfo, &logical_id, 4);
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pnp_check_quirks(p->vendor_id,
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logical_id,
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ldn);
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compat_id = 0;
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logdev = card;
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config = &logdev;
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dev = BUS_ADD_CHILD(parent,
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ISA_ORDER_PNP, NULL, -1);
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if (desc)
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device_set_desc_copy(dev, desc);
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isa_set_vendorid(dev, p->vendor_id);
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isa_set_serial(dev, p->serial);
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isa_set_logicalid(dev, logical_id);
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csnldn = malloc(sizeof *csnldn,
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M_DEVBUF, M_NOWAIT);
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if (!csnldn) {
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device_printf(parent,
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"out of memory\n");
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scanning = 0;
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break;
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}
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csnldn->csn = csn;
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csnldn->ldn = ldn;
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ISA_SET_CONFIG_CALLBACK(parent, dev,
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pnp_set_config,
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csnldn);
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seenalt = 0;
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ldn++;
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break;
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case PNP_TAG_COMPAT_DEVICE:
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/*
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* Got a compatible device id
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* resource. Should keep a list of
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* compat ids in the device.
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*/
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bcopy(resinfo, &compat_id, 4);
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if (dev)
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isa_set_compatid(dev, compat_id);
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break;
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case PNP_TAG_IRQ_FORMAT:
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if (config->ic_nirq == ISA_NIRQ) {
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device_printf(parent,
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"CSN %d too many irqs",
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csn);
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scanning = 0;
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break;
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}
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config->ic_irqmask[config->ic_nirq] =
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resinfo[0] + (resinfo[1]<<8);
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config->ic_nirq++;
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break;
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case PNP_TAG_DMA_FORMAT:
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if (config->ic_ndrq == ISA_NDRQ) {
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device_printf(parent,
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"CSN %d too many drqs",
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csn);
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scanning = 0;
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break;
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}
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config->ic_drqmask[config->ic_ndrq] =
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resinfo[0];
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config->ic_ndrq++;
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break;
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case PNP_TAG_START_DEPENDANT:
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if (config == &alt) {
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ISA_ADD_CONFIG(parent, dev,
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priority, config);
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} else if (config != &logdev) {
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device_printf(parent,
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"CSN %d malformed\n",
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csn);
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scanning = 0;
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break;
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}
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/*
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* If the priority is not specified,
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* then use the default of
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* 'acceptable'
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*/
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if (PNP_SRES_LEN(tag) > 0)
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priority = resinfo[0];
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else
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priority = 1;
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alt = logdev;
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config = &alt;
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break;
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case PNP_TAG_END_DEPENDANT:
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ISA_ADD_CONFIG(parent, dev, priority, config);
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config = &logdev;
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seenalt = 1;
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break;
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case PNP_TAG_IO_RANGE:
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if (config->ic_nport == ISA_NPORT) {
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device_printf(parent,
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"CSN %d too many ports",
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csn);
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scanning = 0;
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break;
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}
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config->ic_port[config->ic_nport].ir_start =
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resinfo[1] + (resinfo[2]<<8);
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config->ic_port[config->ic_nport].ir_end =
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resinfo[3] + (resinfo[4]<<8)
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+ resinfo[6] - 1;
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config->ic_port[config->ic_nport].ir_size
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=
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resinfo[6];
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config->ic_port[config->ic_nport].ir_align =
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resinfo[5];
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config->ic_nport++;
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break;
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case PNP_TAG_IO_FIXED:
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if (config->ic_nport == ISA_NPORT) {
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device_printf(parent,
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"CSN %d too many ports",
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csn);
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scanning = 0;
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break;
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}
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config->ic_port[config->ic_nport].ir_start =
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resinfo[0] + (resinfo[1]<<8);
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config->ic_port[config->ic_nport].ir_end =
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resinfo[0] + (resinfo[1]<<8)
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+ resinfo[2] - 1;
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config->ic_port[config->ic_nport].ir_size
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= resinfo[2];
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config->ic_port[config->ic_nport].ir_align = 1;
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config->ic_nport++;
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break;
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case PNP_TAG_END:
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if (!seenalt)
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ISA_ADD_CONFIG(parent, dev,
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priority, config);
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scanning = 0;
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break;
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default:
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/* Skip this resource */
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break;
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}
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} else {
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resp = resources;
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while (scanning > 0) {
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tag = *resp++;
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scanning--;
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if (PNP_RES_TYPE(tag) != 0) {
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/* Large resource */
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if (pnp_get_resource_info(resinfo, 2) == 0) {
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if (scanning < 2) {
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scanning = 0;
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continue;
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}
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large_len = resinfo[0] + (resinfo[1] << 8);
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large_len = resp[0] + (resp[1] << 8);
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resp += 2;
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if (scanning < large_len) {
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scanning = 0;
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continue;
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}
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resinfo = resp;
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resp += large_len;
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scanning -= large_len;
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if (PNP_LRES_NUM(tag) == PNP_TAG_ID_ANSI) {
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if (desc)
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free(desc, M_TEMP);
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desc = malloc(large_len + 1,
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M_TEMP, M_NOWAIT);
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if (large_len > sizeof(buf) - 1)
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large_len = sizeof(buf) - 1;
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bcopy(resinfo, buf, large_len);
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/*
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* Note: if malloc fails, this will
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* skip the resource instead of
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* reading it into desc.
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* Trim trailing spaces.
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*/
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if (pnp_get_resource_info(desc,
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large_len) == 0) {
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scanning = 0;
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}
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if (desc) {
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/*
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* Trim trailing spaces.
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*/
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while (desc[large_len-1] == ' ')
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large_len--;
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desc[large_len] = '\0';
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if (dev)
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device_set_desc_copy
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(dev, desc);
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}
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while (buf[large_len-1] == ' ')
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large_len--;
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buf[large_len] = '\0';
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desc = buf;
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if (dev)
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device_set_desc_copy(dev, desc);
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continue;
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}
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if (PNP_LRES_NUM(tag) != PNP_TAG_MEMORY_RANGE) {
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/* skip */
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if (pnp_get_resource_info(NULL,
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large_len) == 0) {
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scanning = 0;
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}
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continue;
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continue;
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}
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/* Small resource */
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if (scanning < PNP_SRES_LEN(tag)) {
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scanning = 0;
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continue;
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}
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resinfo = resp;
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resp += PNP_SRES_LEN(tag);
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scanning -= PNP_SRES_LEN(tag);;
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switch (PNP_SRES_NUM(tag)) {
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case PNP_TAG_LOGICAL_DEVICE:
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/*
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* Parse the resources for the previous
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* logical device (if any).
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*/
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if (startres) {
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pnp_parse_resources(dev, startres,
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resinfo - startres - 1);
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dev = 0;
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startres = 0;
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}
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if (pnp_get_resource_info(resinfo, large_len) == 0) {
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scanning = 0;
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continue;
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}
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if (config->ic_nmem == ISA_NMEM) {
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/*
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* A new logical device. Scan for end of
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* resources.
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*/
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bcopy(resinfo, &logical_id, 4);
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pnp_check_quirks(p->vendor_id, logical_id, ldn);
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compat_id = 0;
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dev = BUS_ADD_CHILD(parent, ISA_ORDER_PNP, NULL, -1);
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if (desc)
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device_set_desc_copy(dev, desc);
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isa_set_vendorid(dev, p->vendor_id);
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isa_set_serial(dev, p->serial);
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isa_set_logicalid(dev, logical_id);
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csnldn = malloc(sizeof *csnldn, M_DEVBUF, M_NOWAIT);
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if (!csnldn) {
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device_printf(parent,
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"CSN %d too many memory ranges",
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csn);
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"out of memory\n");
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scanning = 0;
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break;
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}
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csnldn->csn = csn;
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csnldn->ldn = ldn;
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ISA_SET_CONFIG_CALLBACK(parent, dev,
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pnp_set_config, csnldn);
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ldn++;
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startres = resp;
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break;
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case PNP_TAG_END:
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if (!startres) {
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device_printf(parent,
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"malformed resources\n");
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scanning = 0;
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break;
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}
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pnp_parse_resources(dev, startres,
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resinfo - startres - 1);
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dev = 0;
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startres = 0;
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scanning = 0;
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break;
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config->ic_mem[config->ic_nmem].ir_start =
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(resinfo[4]<<8) + (resinfo[5]<<16);
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config->ic_mem[config->ic_nmem].ir_end =
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(resinfo[6]<<8) + (resinfo[7]<<16);
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config->ic_mem[config->ic_nmem].ir_size =
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(resinfo[10]<<8) + (resinfo[11]<<16);
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config->ic_mem[config->ic_nmem].ir_align =
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resinfo[8] + (resinfo[9]<<8);
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if (!config->ic_mem[config->ic_nmem].ir_align)
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config->ic_mem[config->ic_nmem].ir_align =
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0x10000;
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config->ic_nmem++;
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default:
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/* Skip this resource */
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break;
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}
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}
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if (desc)
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free(desc, M_TEMP);
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return retval;
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}
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/*
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* Read 'amount' bytes of resources from the card, allocating memory
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* as needed. If a buffer is already available, it should be passed in
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* '*resourcesp' and its length in '*spacep'. The number of resource
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* bytes already in the buffer should be passed in '*lenp'. The memory
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* allocated will be returned in '*resourcesp' with its size and the
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* number of bytes of resources in '*spacep' and '*lenp' respectively.
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*/
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static int
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pnp_read_bytes(int amount, u_char **resourcesp, int *spacep, int *lenp)
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{
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u_char *resources = *resourcesp;
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u_char *newres;
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int space = *spacep;
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int len = *lenp;
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if (space == 0) {
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space = 1024;
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resources = malloc(space, M_TEMP, M_NOWAIT);
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if (!resources)
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return ENOMEM;
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}
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if (len + amount > space) {
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int extra = 1024;
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while (len + amount > space + extra)
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extra += 1024;
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newres = malloc(space + extra, M_TEMP, M_NOWAIT);
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if (!newres)
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return ENOMEM;
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bcopy(resources, newres, len);
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free(resources, M_TEMP);
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resources = newres;
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space += extra;
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}
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if (pnp_get_resource_info(resources + len, amount) != amount)
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return EINVAL;
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len += amount;
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*resourcesp = resources;
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*spacep = space;
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*lenp = len;
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return 0;
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}
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/*
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* Read all resources from the card, allocating memory as needed. If a
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* buffer is already available, it should be passed in '*resourcesp'
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* and its length in '*spacep'. The memory allocated will be returned
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* in '*resourcesp' with its size and the number of bytes of resources
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* in '*spacep' and '*lenp' respectively.
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*/
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static int
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pnp_read_resources(u_char **resourcesp, int *spacep, int *lenp)
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{
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u_char *resources = *resourcesp;
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int space = *spacep;
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int len = 0;
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int error, done;
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u_char tag;
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error = 0;
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done = 0;
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while (!done) {
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error = pnp_read_bytes(1, &resources, &space, &len);
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if (error)
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goto out;
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tag = resources[len-1];
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if (PNP_RES_TYPE(tag) == 0) {
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/*
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* Small resource, read contents.
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*/
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error = pnp_read_bytes(PNP_SRES_LEN(tag),
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&resources, &space, &len);
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if (error)
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goto out;
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if (PNP_SRES_NUM(tag) == PNP_TAG_END)
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done = 1;
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} else {
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/*
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* Large resource, read length and contents.
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*/
|
||||
error = pnp_read_bytes(2, &resources, &space, &len);
|
||||
if (error)
|
||||
goto out;
|
||||
error = pnp_read_bytes(resources[len-2]
|
||||
+ (resources[len-1] << 8),
|
||||
&resources, &space, &len);
|
||||
if (error)
|
||||
goto out;
|
||||
}
|
||||
}
|
||||
|
||||
out:
|
||||
*resourcesp = resources;
|
||||
*spacep = space;
|
||||
*lenp = len;
|
||||
return error;
|
||||
}
|
||||
|
||||
/*
|
||||
* Run the isolation protocol. Use pnp_rd_port as the READ_DATA port
|
||||
* value (caller should try multiple READ_DATA locations before giving
|
||||
@ -648,7 +616,10 @@ pnp_isolation_protocol(device_t parent)
|
||||
{
|
||||
int csn;
|
||||
pnp_id id;
|
||||
int found = 0;
|
||||
int found = 0, len;
|
||||
u_char *resources = 0;
|
||||
int space = 0;
|
||||
int error;
|
||||
|
||||
/*
|
||||
* Put all cards into the Sleep state so that we can clear
|
||||
@ -683,14 +654,20 @@ pnp_isolation_protocol(device_t parent)
|
||||
* We have read the id from a card
|
||||
* successfully. The card which won the
|
||||
* isolation protocol will be in Isolation
|
||||
* mode and all others will be in Sleep. *
|
||||
* mode and all others will be in Sleep.
|
||||
* Program the CSN of the isolated card
|
||||
* (taking it to Config state) and read its
|
||||
* resources, creating devices as we find
|
||||
* logical devices on the card.
|
||||
*/
|
||||
pnp_write(PNP_SET_CSN, csn);
|
||||
pnp_scan_resdata(parent, &id, csn);
|
||||
error = pnp_read_resources(&resources,
|
||||
&space,
|
||||
&len);
|
||||
if (error)
|
||||
break;
|
||||
pnp_create_devices(parent, &id, csn,
|
||||
resources, len);
|
||||
found++;
|
||||
} else
|
||||
break;
|
||||
@ -710,6 +687,12 @@ pnp_isolation_protocol(device_t parent)
|
||||
*/
|
||||
pnp_write(PNP_CONFIG_CONTROL, PNP_CONFIG_CONTROL_WAIT_FOR_KEY);
|
||||
|
||||
/*
|
||||
* Cleanup.
|
||||
*/
|
||||
if (resources)
|
||||
free(resources, M_TEMP);
|
||||
|
||||
return found;
|
||||
}
|
||||
|
||||
|
246
sys/isa/pnpparse.c
Normal file
246
sys/isa/pnpparse.c
Normal file
@ -0,0 +1,246 @@
|
||||
/*-
|
||||
* 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/kernel.h>
|
||||
#include <sys/module.h>
|
||||
#include <sys/bus.h>
|
||||
#include <isa/isavar.h>
|
||||
#include <isa/pnpreg.h>
|
||||
#include <isa/pnpvar.h>
|
||||
|
||||
/*
|
||||
* Parse resource data for Logical Devices.
|
||||
*
|
||||
* This function exits as soon as it gets an error reading *ANY*
|
||||
* Resource Data or ir reaches the end of Resource Data. In the first
|
||||
* case the return value will be TRUE, FALSE otherwise.
|
||||
*/
|
||||
void
|
||||
pnp_parse_resources(device_t dev, u_char *resources, int len)
|
||||
{
|
||||
device_t parent = device_get_parent(dev);
|
||||
u_char tag, *resp, *resinfo;
|
||||
int large_len, scanning = len;
|
||||
u_int32_t compat_id;
|
||||
struct isa_config logdev, alt;
|
||||
struct isa_config *config;
|
||||
int priority = 0;
|
||||
int seenalt = 0;
|
||||
char buf[100];
|
||||
|
||||
bzero(&logdev, sizeof logdev);
|
||||
bzero(&alt, sizeof alt);
|
||||
config = &logdev;
|
||||
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 (config->ic_nirq == ISA_NIRQ) {
|
||||
device_printf(parent, "too many irqs");
|
||||
scanning = 0;
|
||||
break;
|
||||
}
|
||||
config->ic_irqmask[config->ic_nirq] =
|
||||
resinfo[0] + (resinfo[1]<<8);
|
||||
config->ic_nirq++;
|
||||
break;
|
||||
|
||||
case PNP_TAG_DMA_FORMAT:
|
||||
if (config->ic_ndrq == ISA_NDRQ) {
|
||||
device_printf(parent, "too many drqs");
|
||||
scanning = 0;
|
||||
break;
|
||||
}
|
||||
config->ic_drqmask[config->ic_ndrq] =
|
||||
resinfo[0];
|
||||
config->ic_ndrq++;
|
||||
break;
|
||||
|
||||
case PNP_TAG_START_DEPENDANT:
|
||||
if (config == &alt) {
|
||||
ISA_ADD_CONFIG(parent, dev,
|
||||
priority, config);
|
||||
} else if (config != &logdev) {
|
||||
device_printf(parent, "malformed\n");
|
||||
scanning = 0;
|
||||
break;
|
||||
}
|
||||
/*
|
||||
* If the priority is not specified,
|
||||
* then use the default of
|
||||
* 'acceptable'
|
||||
*/
|
||||
if (PNP_SRES_LEN(tag) > 0)
|
||||
priority = resinfo[0];
|
||||
else
|
||||
priority = 1;
|
||||
alt = logdev;
|
||||
config = &alt;
|
||||
break;
|
||||
|
||||
case PNP_TAG_END_DEPENDANT:
|
||||
ISA_ADD_CONFIG(parent, dev, priority, config);
|
||||
config = &logdev;
|
||||
seenalt = 1;
|
||||
break;
|
||||
|
||||
case PNP_TAG_IO_RANGE:
|
||||
if (config->ic_nport == ISA_NPORT) {
|
||||
device_printf(parent, "too many ports");
|
||||
scanning = 0;
|
||||
break;
|
||||
}
|
||||
config->ic_port[config->ic_nport].ir_start =
|
||||
resinfo[1] + (resinfo[2]<<8);
|
||||
config->ic_port[config->ic_nport].ir_end =
|
||||
resinfo[3] + (resinfo[4]<<8)
|
||||
+ resinfo[6] - 1;
|
||||
config->ic_port[config->ic_nport].ir_size
|
||||
=
|
||||
resinfo[6];
|
||||
config->ic_port[config->ic_nport].ir_align =
|
||||
resinfo[5];
|
||||
config->ic_nport++;
|
||||
break;
|
||||
|
||||
case PNP_TAG_IO_FIXED:
|
||||
if (config->ic_nport == ISA_NPORT) {
|
||||
device_printf(parent, "too many ports");
|
||||
scanning = 0;
|
||||
break;
|
||||
}
|
||||
config->ic_port[config->ic_nport].ir_start =
|
||||
resinfo[0] + (resinfo[1]<<8);
|
||||
config->ic_port[config->ic_nport].ir_end =
|
||||
resinfo[0] + (resinfo[1]<<8)
|
||||
+ 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;
|
||||
|
||||
default:
|
||||
/* Skip this resource */
|
||||
device_printf(parent, "unexpected tag %d\n",
|
||||
PNP_SRES_NUM(tag));
|
||||
break;
|
||||
}
|
||||
} else {
|
||||
/* Large resource */
|
||||
if (scanning < 2) {
|
||||
scanning = 0;
|
||||
continue;
|
||||
}
|
||||
large_len = resp[0] + (resp[1] << 8);
|
||||
resp += 2;
|
||||
scanning -= 2;
|
||||
|
||||
if (scanning < large_len) {
|
||||
scanning = 0;
|
||||
continue;
|
||||
}
|
||||
resinfo = resp;
|
||||
resp += large_len;
|
||||
scanning -= large_len;
|
||||
|
||||
if (PNP_LRES_NUM(tag) == PNP_TAG_ID_ANSI) {
|
||||
if (large_len > sizeof(buf) - 1)
|
||||
large_len = sizeof(buf) - 1;
|
||||
bcopy(resinfo, buf, large_len);
|
||||
|
||||
/*
|
||||
* Trim trailing spaces.
|
||||
*/
|
||||
while (buf[large_len-1] == ' ')
|
||||
large_len--;
|
||||
buf[large_len] = '\0';
|
||||
device_set_desc_copy(dev, buf);
|
||||
continue;
|
||||
}
|
||||
|
||||
if (PNP_LRES_NUM(tag) != PNP_TAG_MEMORY_RANGE) {
|
||||
/* skip */
|
||||
continue;
|
||||
}
|
||||
|
||||
if (config->ic_nmem == ISA_NMEM) {
|
||||
device_printf(parent, "too many memory ranges");
|
||||
scanning = 0;
|
||||
break;
|
||||
}
|
||||
|
||||
config->ic_mem[config->ic_nmem].ir_start =
|
||||
(resinfo[4]<<8) + (resinfo[5]<<16);
|
||||
config->ic_mem[config->ic_nmem].ir_end =
|
||||
(resinfo[6]<<8) + (resinfo[7]<<16);
|
||||
config->ic_mem[config->ic_nmem].ir_size =
|
||||
(resinfo[10]<<8) + (resinfo[11]<<16);
|
||||
config->ic_mem[config->ic_nmem].ir_align =
|
||||
resinfo[8] + (resinfo[9]<<8);
|
||||
if (!config->ic_mem[config->ic_nmem].ir_align)
|
||||
config->ic_mem[config->ic_nmem].ir_align =
|
||||
0x10000;
|
||||
config->ic_nmem++;
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Some devices (e.g. network cards) don't have start
|
||||
* dependant tags and only have a single configuration. If we
|
||||
* finish parsing without seeing an end dependant tag, add the
|
||||
* non-dependant configuration to the device.
|
||||
*/
|
||||
if (!seenalt)
|
||||
ISA_ADD_CONFIG(parent, dev, 1, config);
|
||||
}
|
||||
|
@ -52,6 +52,8 @@ u_char pnp_read(int d); /* currently unused, but who knows... */
|
||||
| (PNP_HEXTONUM(s[6]) << 24) \
|
||||
| (PNP_HEXTONUM(s[5]) << 28))
|
||||
|
||||
void pnp_parse_resources(device_t dev, u_char *resources, int len);
|
||||
|
||||
#endif /* KERNEL */
|
||||
|
||||
#endif /* !_ISA_PNPVAR_H_ */
|
||||
|
Loading…
Reference in New Issue
Block a user