Add basic PCI capability
Not sure how unit numbers are carried across between PCI and ISA though.. maybe there should be only one devclass between the two?
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julian
parent
efa3fc82ba
commit
b1e3e6e70f
@ -17,7 +17,7 @@
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#
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# $FreeBSD$"
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#
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#-------cut here------------------
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#
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if [ "${1}X" = "X" ]
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then
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echo "Hey , how about some help here.. give me a device name!"
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@ -153,9 +153,14 @@ cat >${TOP}/dev/${1}/${1}.c <<DONE
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#include <sys/bus.h>
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include <machine/bus_pio.h>
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#include <machine/bus_memio.h>
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#include <sys/rman.h>
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#include <sys/time.h>
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#include <pci/pcireg.h>
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#include <pci/pcivar.h>
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#include <isa/isavar.h>
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#include "isa_if.h"
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#include <sys/${1}io.h> /* ${1} IOCTL definitions */
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@ -166,42 +171,6 @@ cat >${TOP}/dev/${1}/${1}.c <<DONE
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#define SOME_PORT 123
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#define EXPECTED_VALUE 0x42
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/* Function prototypes (these should all be static) */
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static void ${1}_isa_identify (driver_t *, device_t);
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static int ${1}_isa_probe (device_t);
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static int ${1}_isa_attach (device_t);
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static int ${1}_isa_detach (device_t);
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static int ${1}_deallocate_resources(device_t device);
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static int ${1}_allocate_resources(device_t device);
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static d_open_t ${1}open;
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static d_close_t ${1}close;
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static d_read_t ${1}read;
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static d_write_t ${1}write;
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static d_ioctl_t ${1}ioctl;
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static d_mmap_t ${1}mmap;
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static d_poll_t ${1}poll;
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static void ${1}intr(void *arg);
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#define CDEV_MAJOR 20
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static struct cdevsw ${1}_cdevsw = {
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/* open */ ${1}open,
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/* close */ ${1}close,
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/* read */ ${1}read,
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/* write */ ${1}write,
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/* ioctl */ ${1}ioctl,
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/* poll */ ${1}poll,
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/* mmap */ ${1}mmap,
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/* strategy */ nostrategy, /* not a block type device */
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/* name */ "${1}",
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/* maj */ CDEV_MAJOR,
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/* dump */ nodump, /* not a block type device */
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/* psize */ nopsize, /* not a block type device */
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/* flags */ 0,
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/* bmaj */ -1
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};
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/*
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* device specific Misc defines
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*/
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@ -232,7 +201,47 @@ struct ${1}_softc {
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typedef struct ${1}_softc *sc_p;
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static devclass_t ${1}_devclass;
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/* Function prototypes (these should all be static) */
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static int ${1}_deallocate_resources(device_t device);
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static int ${1}_allocate_resources(device_t device);
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static int ${1}_attach(device_t device, sc_p scp);
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static int ${1}_detach(device_t device, sc_p scp);
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static d_open_t ${1}open;
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static d_close_t ${1}close;
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static d_read_t ${1}read;
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static d_write_t ${1}write;
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static d_ioctl_t ${1}ioctl;
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static d_mmap_t ${1}mmap;
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static d_poll_t ${1}poll;
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static void ${1}intr(void *arg);
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#define CDEV_MAJOR 20
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static struct cdevsw ${1}_cdevsw = {
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/* open */ ${1}open,
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/* close */ ${1}close,
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/* read */ ${1}read,
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/* write */ ${1}write,
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/* ioctl */ ${1}ioctl,
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/* poll */ ${1}poll,
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/* mmap */ ${1}mmap,
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/* strategy */ nostrategy, /* not a block type device */
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/* name */ "${1}",
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/* maj */ CDEV_MAJOR,
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/* dump */ nodump, /* not a block type device */
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/* psize */ nopsize, /* not a block type device */
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/* flags */ 0,
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/* bmaj */ -1
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};
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/*****************************************\
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* ISA Attachment structures and functions
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\*****************************************/
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static void ${1}_isa_identify (driver_t *, device_t);
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static int ${1}_isa_probe (device_t);
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static int ${1}_isa_attach (device_t);
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static int ${1}_isa_detach (device_t);
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static struct isa_pnp_id ${1}_ids[] = {
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{0x12345678, "ABCco Widget"},
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@ -254,6 +263,8 @@ static driver_t ${1}_isa_driver = {
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sizeof (struct ${1}_softc)
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};
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static devclass_t ${1}_devclass;
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DRIVER_MODULE(${1}, isa, ${1}_isa_driver, ${1}_devclass, 0, 0);
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/*
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@ -421,7 +432,6 @@ ${1}_isa_probe (device_t device)
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error = bus_get_resource(device, SYS_RES_IOPORT, 0,
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&port_start, &port_count);
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/* dummy heuristic type probe */
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if ( inb(port_start) != EXPECTED_VALUE) {
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/*
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@ -473,17 +483,126 @@ errexit:
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* Called if the probe succeeded and our bid won the device.
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* We can be destructive here as we know we have the device.
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* This is the first place we can be sure we have a softc structure.
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* You would do ISA specific attach things here, but generically there aren't
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* any (yey new-bus!).
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*/
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static int
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${1}_isa_attach (device_t device)
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{
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int unit = device_get_unit(device);
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sc_p scp = device_get_softc(device);
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int error;
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error = ${1}_attach(device, scp);
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if (error) {
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${1}_isa_detach(device);
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}
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return (error);
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}
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/*
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* detach the driver (e.g. module unload)
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* call the bus independent version
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* and undo anything we did in the ISA attach routine.
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*/
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static int
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${1}_isa_detach (device_t device)
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{
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sc_p scp = device_get_softc(device);
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int error;
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error = ${1}_detach(device, scp);
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return (error);
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}
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/***************************************\
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* PCI Attachment structures and code *
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\***************************************/
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static int ${1}_pci_probe __P((device_t));
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static int ${1}_pci_attach __P((device_t));
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static int ${1}_pci_detach __P((device_t));
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static device_method_t ${1}_pci_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, ${1}_pci_probe),
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DEVMETHOD(device_attach, ${1}_pci_attach),
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DEVMETHOD(device_detach, ${1}_pci_detach),
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{ 0, 0 }
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};
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static driver_t ${1}_pci_driver = {
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"${1}",
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${1}_pci_methods,
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sizeof(struct ${1}_softc),
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};
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static devclass_t ${1}_pci_devclass;
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DRIVER_MODULE(${1}, pci, ${1}_pci_driver, ${1}_pci_devclass, 0, 0);
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static struct _pcsid
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{
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u_int32_t type;
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const char *desc;
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} pci_ids[] = {
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{ 0x1234abcd, "ACME PCI Widgetplus" },
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{ 0x1234fedc, "Happy moon brand RIPOFFplus" },
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{ 0x00000000, NULL }
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};
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static int
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${1}_pci_probe (device_t device)
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{
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u_int32_t type = pci_get_devid(device);
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struct _pcsid *ep =pci_ids;
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while (ep->type && ep->type != type)
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++ep;
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if (ep->desc) {
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device_set_desc(device, ep->desc);
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return 0;
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} else {
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return ENXIO;
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}
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}
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static int
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${1}_pci_attach(device_t device)
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{
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sc_p scp = device_get_softc(device);
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int error;
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error = ${1}_attach(device, scp);
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if (error) {
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${1}_pci_detach(device);
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}
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return (error);
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}
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static int
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${1}_pci_detach (device_t device)
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{
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sc_p scp = device_get_softc(device);
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int error;
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error = ${1}_detach(device, scp);
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return (error);
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}
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/****************************************\
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* Common Attachment subfunctions *
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\****************************************/
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static int
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${1}_attach(device_t device, sc_p scp)
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{
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int unit = device_get_unit(device);
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device_t parent = device_get_parent(device);
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scp->dev->si_drv1 = scp;
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scp->dev = make_dev(&${1}_cdevsw, 0,
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UID_ROOT, GID_OPERATOR, 0600, "${1}%d", unit);
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scp->dev->si_drv1 = scp;
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if (${1}_allocate_resources(device)) {
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goto errexit;
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@ -508,6 +627,8 @@ ${1}_isa_attach (device_t device)
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if (BUS_SETUP_INTR(parent, device, scp->res_irq, INTR_TYPE_TTY,
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${1}intr, scp, &scp->intr_cookie) == 0) {
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/* do something if successfull */
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} else {
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goto errexit;
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}
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}
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@ -522,14 +643,13 @@ errexit:
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/*
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* Undo anything we may have done
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*/
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${1}_isa_detach(device);
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${1}_detach(device, scp);
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return (ENXIO);
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}
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static int
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${1}_isa_detach (device_t device)
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${1}_detach(device_t device, sc_p scp)
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{
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sc_p scp = device_get_softc(device);
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device_t parent = device_get_parent(device);
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/*
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