freebsd-skq/sys/sparc64/fhc/fhc.c

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/*-
* Copyright (c) 2003 Jake Burkholder.
* 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/bus.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/pcpu.h>
- Introduce an ofw_bus kobj-interface for retrieving the OFW node and a subset ("compatible", "device_type", "model" and "name") of the standard properties in drivers for devices on Open Firmware supported busses. The standard properties "reg", "interrupts" und "address" are not covered by this interface because they are only of interest in the respective bridge code. There's a remaining standard property "status" which is unclear how to support properly but which also isn't used in FreeBSD at present. This ofw_bus kobj-interface allows to replace the various (ebus_get_node(), ofw_pci_get_node(), etc.) and partially inconsistent (central_get_type() vs. sbus_get_device_type(), etc.) existing IVAR ones with a common one. This in turn allows to simplify and remove code-duplication in drivers for devices that can hang off of more than one OFW supported bus. - Convert the sparc64 Central, EBus, FHC, PCI and SBus bus drivers and the drivers for their children to use the ofw_bus kobj-interface. The IVAR- interfaces of the Central, EBus and FHC are entirely replaced by this. The PCI bus driver used its own kobj-interface and now also uses the ofw_bus one. The IVARs special to the SBus, e.g. for retrieving the burst size, remain. Beware: this causes an ABI-breakage for modules of drivers which used the IVAR-interfaces, i.e. esp(4), hme(4), isp(4) and uart(4), which need to be recompiled. The style-inconsistencies introduced in some of the bus drivers will be fixed by tmm@ in a generic clean-up of the respective drivers later (he requested to add the changes in the "new" style). - Convert the powerpc MacIO bus driver and the drivers for its children to use the ofw_bus kobj-interface. This invloves removing the IVARs related to the "reg" property which were unused and a leftover from the NetBSD origini of the code. There's no ABI-breakage caused by this because none of these driver are currently built as modules. There are other powerpc bus drivers which can be converted to the ofw_bus kobj-interface, e.g. the PCI bus driver, which should be done together with converting powerpc to use the OFW PCI code from sparc64. - Make the SBus and FHC front-end of zs(4) and the sparc64 eeprom(4) take advantage of the ofw_bus kobj-interface and simplify them a bit. Reviewed by: grehan, tmm Approved by: re (scottl) Discussed with: tmm Tested with: Sun AX1105, AXe, Ultra 2, Ultra 60; PPC cross-build on i386
2004-08-12 17:41:33 +00:00
#include <dev/ofw/ofw_bus.h>
#include <dev/ofw/openfirm.h>
#include <machine/bus.h>
#include <machine/bus_common.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <sparc64/fhc/fhcreg.h>
#include <sparc64/fhc/fhcvar.h>
#include <sparc64/sbus/ofw_sbus.h>
#define INTIGN(map) (((map) & INTMAP_IGN_MASK) >> INTMAP_IGN_SHIFT)
struct fhc_clr {
driver_intr_t *fc_func;
void *fc_arg;
void *fc_cookie;
bus_space_tag_t fc_bt;
bus_space_handle_t fc_bh;
};
struct fhc_devinfo {
- Introduce an ofw_bus kobj-interface for retrieving the OFW node and a subset ("compatible", "device_type", "model" and "name") of the standard properties in drivers for devices on Open Firmware supported busses. The standard properties "reg", "interrupts" und "address" are not covered by this interface because they are only of interest in the respective bridge code. There's a remaining standard property "status" which is unclear how to support properly but which also isn't used in FreeBSD at present. This ofw_bus kobj-interface allows to replace the various (ebus_get_node(), ofw_pci_get_node(), etc.) and partially inconsistent (central_get_type() vs. sbus_get_device_type(), etc.) existing IVAR ones with a common one. This in turn allows to simplify and remove code-duplication in drivers for devices that can hang off of more than one OFW supported bus. - Convert the sparc64 Central, EBus, FHC, PCI and SBus bus drivers and the drivers for their children to use the ofw_bus kobj-interface. The IVAR- interfaces of the Central, EBus and FHC are entirely replaced by this. The PCI bus driver used its own kobj-interface and now also uses the ofw_bus one. The IVARs special to the SBus, e.g. for retrieving the burst size, remain. Beware: this causes an ABI-breakage for modules of drivers which used the IVAR-interfaces, i.e. esp(4), hme(4), isp(4) and uart(4), which need to be recompiled. The style-inconsistencies introduced in some of the bus drivers will be fixed by tmm@ in a generic clean-up of the respective drivers later (he requested to add the changes in the "new" style). - Convert the powerpc MacIO bus driver and the drivers for its children to use the ofw_bus kobj-interface. This invloves removing the IVARs related to the "reg" property which were unused and a leftover from the NetBSD origini of the code. There's no ABI-breakage caused by this because none of these driver are currently built as modules. There are other powerpc bus drivers which can be converted to the ofw_bus kobj-interface, e.g. the PCI bus driver, which should be done together with converting powerpc to use the OFW PCI code from sparc64. - Make the SBus and FHC front-end of zs(4) and the sparc64 eeprom(4) take advantage of the ofw_bus kobj-interface and simplify them a bit. Reviewed by: grehan, tmm Approved by: re (scottl) Discussed with: tmm Tested with: Sun AX1105, AXe, Ultra 2, Ultra 60; PPC cross-build on i386
2004-08-12 17:41:33 +00:00
char *fdi_compat;
char *fdi_model;
char *fdi_name;
char *fdi_type;
phandle_t fdi_node;
struct resource_list fdi_rl;
};
static void fhc_intr_stub(void *);
int
fhc_probe(device_t dev)
{
return (0);
}
int
fhc_attach(device_t dev)
{
struct fhc_devinfo *fdi;
struct sbus_regs *reg;
struct fhc_softc *sc;
phandle_t child;
phandle_t node;
bus_addr_t size;
bus_addr_t off;
device_t cdev;
uint32_t ctrl;
char *name;
int nreg;
int i;
sc = device_get_softc(dev);
node = sc->sc_node;
for (i = FHC_FANFAIL; i <= FHC_TOD; i++) {
bus_space_write_4(sc->sc_bt[i], sc->sc_bh[i], FHC_ICLR, 0x0);
bus_space_read_4(sc->sc_bt[i], sc->sc_bh[i], FHC_ICLR);
}
sc->sc_ign = sc->sc_board << 1;
bus_space_write_4(sc->sc_bt[FHC_IGN], sc->sc_bh[FHC_IGN], 0x0,
sc->sc_ign);
sc->sc_ign = bus_space_read_4(sc->sc_bt[FHC_IGN],
sc->sc_bh[FHC_IGN], 0x0);
ctrl = bus_space_read_4(sc->sc_bt[FHC_INTERNAL],
sc->sc_bh[FHC_INTERNAL], FHC_CTRL);
if ((sc->sc_flags & FHC_CENTRAL) == 0)
ctrl |= FHC_CTRL_IXIST;
ctrl &= ~(FHC_CTRL_AOFF | FHC_CTRL_BOFF | FHC_CTRL_SLINE);
bus_space_write_4(sc->sc_bt[FHC_INTERNAL], sc->sc_bh[FHC_INTERNAL],
FHC_CTRL, ctrl);
ctrl = bus_space_read_4(sc->sc_bt[FHC_INTERNAL],
sc->sc_bh[FHC_INTERNAL], FHC_CTRL);
sc->sc_nrange = OF_getprop_alloc(node, "ranges",
sizeof(*sc->sc_ranges), (void **)&sc->sc_ranges);
if (sc->sc_nrange == -1) {
device_printf(dev, "can't get ranges");
return (ENXIO);
}
for (child = OF_child(node); child != 0; child = OF_peer(child)) {
if ((OF_getprop_alloc(child, "name", 1, (void **)&name)) == -1)
continue;
cdev = device_add_child(dev, NULL, -1);
if (cdev != NULL) {
2003-02-19 17:25:58 +00:00
fdi = malloc(sizeof(*fdi), M_DEVBUF,
M_WAITOK | M_ZERO);
fdi->fdi_name = name;
fdi->fdi_node = child;
- Introduce an ofw_bus kobj-interface for retrieving the OFW node and a subset ("compatible", "device_type", "model" and "name") of the standard properties in drivers for devices on Open Firmware supported busses. The standard properties "reg", "interrupts" und "address" are not covered by this interface because they are only of interest in the respective bridge code. There's a remaining standard property "status" which is unclear how to support properly but which also isn't used in FreeBSD at present. This ofw_bus kobj-interface allows to replace the various (ebus_get_node(), ofw_pci_get_node(), etc.) and partially inconsistent (central_get_type() vs. sbus_get_device_type(), etc.) existing IVAR ones with a common one. This in turn allows to simplify and remove code-duplication in drivers for devices that can hang off of more than one OFW supported bus. - Convert the sparc64 Central, EBus, FHC, PCI and SBus bus drivers and the drivers for their children to use the ofw_bus kobj-interface. The IVAR- interfaces of the Central, EBus and FHC are entirely replaced by this. The PCI bus driver used its own kobj-interface and now also uses the ofw_bus one. The IVARs special to the SBus, e.g. for retrieving the burst size, remain. Beware: this causes an ABI-breakage for modules of drivers which used the IVAR-interfaces, i.e. esp(4), hme(4), isp(4) and uart(4), which need to be recompiled. The style-inconsistencies introduced in some of the bus drivers will be fixed by tmm@ in a generic clean-up of the respective drivers later (he requested to add the changes in the "new" style). - Convert the powerpc MacIO bus driver and the drivers for its children to use the ofw_bus kobj-interface. This invloves removing the IVARs related to the "reg" property which were unused and a leftover from the NetBSD origini of the code. There's no ABI-breakage caused by this because none of these driver are currently built as modules. There are other powerpc bus drivers which can be converted to the ofw_bus kobj-interface, e.g. the PCI bus driver, which should be done together with converting powerpc to use the OFW PCI code from sparc64. - Make the SBus and FHC front-end of zs(4) and the sparc64 eeprom(4) take advantage of the ofw_bus kobj-interface and simplify them a bit. Reviewed by: grehan, tmm Approved by: re (scottl) Discussed with: tmm Tested with: Sun AX1105, AXe, Ultra 2, Ultra 60; PPC cross-build on i386
2004-08-12 17:41:33 +00:00
OF_getprop_alloc(child, "compatible", 1,
(void **)&fdi->fdi_compat);
OF_getprop_alloc(child, "device_type", 1,
(void **)&fdi->fdi_type);
- Introduce an ofw_bus kobj-interface for retrieving the OFW node and a subset ("compatible", "device_type", "model" and "name") of the standard properties in drivers for devices on Open Firmware supported busses. The standard properties "reg", "interrupts" und "address" are not covered by this interface because they are only of interest in the respective bridge code. There's a remaining standard property "status" which is unclear how to support properly but which also isn't used in FreeBSD at present. This ofw_bus kobj-interface allows to replace the various (ebus_get_node(), ofw_pci_get_node(), etc.) and partially inconsistent (central_get_type() vs. sbus_get_device_type(), etc.) existing IVAR ones with a common one. This in turn allows to simplify and remove code-duplication in drivers for devices that can hang off of more than one OFW supported bus. - Convert the sparc64 Central, EBus, FHC, PCI and SBus bus drivers and the drivers for their children to use the ofw_bus kobj-interface. The IVAR- interfaces of the Central, EBus and FHC are entirely replaced by this. The PCI bus driver used its own kobj-interface and now also uses the ofw_bus one. The IVARs special to the SBus, e.g. for retrieving the burst size, remain. Beware: this causes an ABI-breakage for modules of drivers which used the IVAR-interfaces, i.e. esp(4), hme(4), isp(4) and uart(4), which need to be recompiled. The style-inconsistencies introduced in some of the bus drivers will be fixed by tmm@ in a generic clean-up of the respective drivers later (he requested to add the changes in the "new" style). - Convert the powerpc MacIO bus driver and the drivers for its children to use the ofw_bus kobj-interface. This invloves removing the IVARs related to the "reg" property which were unused and a leftover from the NetBSD origini of the code. There's no ABI-breakage caused by this because none of these driver are currently built as modules. There are other powerpc bus drivers which can be converted to the ofw_bus kobj-interface, e.g. the PCI bus driver, which should be done together with converting powerpc to use the OFW PCI code from sparc64. - Make the SBus and FHC front-end of zs(4) and the sparc64 eeprom(4) take advantage of the ofw_bus kobj-interface and simplify them a bit. Reviewed by: grehan, tmm Approved by: re (scottl) Discussed with: tmm Tested with: Sun AX1105, AXe, Ultra 2, Ultra 60; PPC cross-build on i386
2004-08-12 17:41:33 +00:00
OF_getprop_alloc(child, "model", 1,
(void **)&fdi->fdi_model);
resource_list_init(&fdi->fdi_rl);
nreg = OF_getprop_alloc(child, "reg", sizeof(*reg),
(void **)&reg);
if (nreg != -1) {
for (i = 0; i < nreg; i++) {
off = reg[i].sbr_offset;
size = reg[i].sbr_size;
resource_list_add(&fdi->fdi_rl,
SYS_RES_MEMORY, i, off, off + size,
size);
}
free(reg, M_OFWPROP);
}
device_set_ivars(cdev, fdi);
} else
free(name, M_OFWPROP);
}
return (bus_generic_attach(dev));
}
int
fhc_print_child(device_t dev, device_t child)
{
struct fhc_devinfo *fdi;
int rv;
fdi = device_get_ivars(child);
rv = bus_print_child_header(dev, child);
rv += resource_list_print_type(&fdi->fdi_rl, "mem",
SYS_RES_MEMORY, "%#lx");
rv += bus_print_child_footer(dev, child);
return (rv);
}
void
fhc_probe_nomatch(device_t dev, device_t child)
{
struct fhc_devinfo *fdi;
fdi = device_get_ivars(child);
device_printf(dev, "<%s>", fdi->fdi_name);
resource_list_print_type(&fdi->fdi_rl, "mem", SYS_RES_MEMORY, "%#lx");
printf(" type %s (no driver attached)\n",
fdi->fdi_type != NULL ? fdi->fdi_type : "unknown");
}
int
fhc_setup_intr(device_t bus, device_t child, struct resource *r, int flags,
driver_intr_t *func, void *arg, void **cookiep)
{
struct fhc_softc *sc;
struct fhc_clr *fc;
int error;
int rid;
sc = device_get_softc(bus);
rid = rman_get_rid(r);
2003-02-19 17:29:07 +00:00
fc = malloc(sizeof(*fc), M_DEVBUF, M_WAITOK | M_ZERO);
fc->fc_func = func;
fc->fc_arg = arg;
fc->fc_bt = sc->sc_bt[rid];
fc->fc_bh = sc->sc_bh[rid];
bus_space_write_4(sc->sc_bt[rid], sc->sc_bh[rid], FHC_IMAP,
rman_get_start(r));
bus_space_read_4(sc->sc_bt[rid], sc->sc_bh[rid], FHC_IMAP);
error = bus_generic_setup_intr(bus, child, r, flags, fhc_intr_stub,
fc, cookiep);
if (error != 0) {
free(fc, M_DEVBUF);
return (error);
}
fc->fc_cookie = *cookiep;
*cookiep = fc;
bus_space_write_4(sc->sc_bt[rid], sc->sc_bh[rid], FHC_ICLR, 0x0);
bus_space_write_4(sc->sc_bt[rid], sc->sc_bh[rid], FHC_IMAP,
INTMAP_ENABLE(rman_get_start(r), PCPU_GET(mid)));
bus_space_read_4(sc->sc_bt[rid], sc->sc_bh[rid], FHC_IMAP);
return (error);
}
int
fhc_teardown_intr(device_t bus, device_t child, struct resource *r,
void *cookie)
{
struct fhc_clr *fc;
int error;
fc = cookie;
error = bus_generic_teardown_intr(bus, child, r, fc->fc_cookie);
if (error != 0)
free(fc, M_DEVBUF);
return (error);
}
static void
fhc_intr_stub(void *arg)
{
struct fhc_clr *fc = arg;
fc->fc_func(fc->fc_arg);
bus_space_write_4(fc->fc_bt, fc->fc_bh, FHC_ICLR, 0x0);
bus_space_read_4(fc->fc_bt, fc->fc_bh, FHC_ICLR);
}
struct resource *
fhc_alloc_resource(device_t bus, device_t child, int type, int *rid,
u_long start, u_long end, u_long count, u_int flags)
{
struct resource_list_entry *rle;
struct fhc_devinfo *fdi;
struct fhc_softc *sc;
struct resource *res;
bus_addr_t coffset;
bus_addr_t cend;
bus_addr_t phys;
int isdefault;
uint32_t map;
uint32_t vec;
int i;
isdefault = (start == 0UL && end == ~0UL);
res = NULL;
sc = device_get_softc(bus);
switch (type) {
case SYS_RES_IRQ:
if (!isdefault || count != 1 || *rid < FHC_FANFAIL ||
*rid > FHC_TOD)
break;
map = bus_space_read_4(sc->sc_bt[*rid], sc->sc_bh[*rid],
FHC_IMAP);
vec = INTINO(map) | (sc->sc_ign << INTMAP_IGN_SHIFT);
bus_space_write_4(sc->sc_bt[*rid], sc->sc_bh[*rid],
FHC_IMAP, vec);
bus_space_read_4(sc->sc_bt[*rid], sc->sc_bh[*rid], FHC_IMAP);
res = bus_generic_alloc_resource(bus, child, type, rid,
vec, vec, 1, flags);
if (res != NULL)
rman_set_rid(res, *rid);
break;
case SYS_RES_MEMORY:
fdi = device_get_ivars(child);
rle = resource_list_find(&fdi->fdi_rl, type, *rid);
if (rle == NULL)
return (NULL);
if (rle->res != NULL)
panic("fhc_alloc_resource: resource entry is busy");
if (isdefault) {
start = rle->start;
count = ulmax(count, rle->count);
end = ulmax(rle->end, start + count - 1);
}
for (i = 0; i < sc->sc_nrange; i++) {
coffset = sc->sc_ranges[i].coffset;
cend = coffset + sc->sc_ranges[i].size - 1;
if (start >= coffset && end <= cend) {
start -= coffset;
end -= coffset;
phys = sc->sc_ranges[i].poffset |
((bus_addr_t)sc->sc_ranges[i].pspace << 32);
res = bus_generic_alloc_resource(bus, child,
type, rid, phys + start, phys + end,
count, flags);
rle->res = res;
break;
}
}
break;
default:
break;
}
return (res);
}
int
fhc_release_resource(device_t bus, device_t child, int type, int rid,
struct resource *r)
{
struct resource_list_entry *rle;
struct fhc_devinfo *fdi;
int error;
error = bus_generic_release_resource(bus, child, type, rid, r);
if (type != SYS_RES_MEMORY || error != 0)
return (error);
fdi = device_get_ivars(child);
rle = resource_list_find(&fdi->fdi_rl, type, rid);
if (rle == NULL)
panic("fhc_release_resource: can't find resource");
if (rle->res == NULL)
panic("fhc_release_resource: resource entry is not busy");
rle->res = NULL;
return (error);
}
- Introduce an ofw_bus kobj-interface for retrieving the OFW node and a subset ("compatible", "device_type", "model" and "name") of the standard properties in drivers for devices on Open Firmware supported busses. The standard properties "reg", "interrupts" und "address" are not covered by this interface because they are only of interest in the respective bridge code. There's a remaining standard property "status" which is unclear how to support properly but which also isn't used in FreeBSD at present. This ofw_bus kobj-interface allows to replace the various (ebus_get_node(), ofw_pci_get_node(), etc.) and partially inconsistent (central_get_type() vs. sbus_get_device_type(), etc.) existing IVAR ones with a common one. This in turn allows to simplify and remove code-duplication in drivers for devices that can hang off of more than one OFW supported bus. - Convert the sparc64 Central, EBus, FHC, PCI and SBus bus drivers and the drivers for their children to use the ofw_bus kobj-interface. The IVAR- interfaces of the Central, EBus and FHC are entirely replaced by this. The PCI bus driver used its own kobj-interface and now also uses the ofw_bus one. The IVARs special to the SBus, e.g. for retrieving the burst size, remain. Beware: this causes an ABI-breakage for modules of drivers which used the IVAR-interfaces, i.e. esp(4), hme(4), isp(4) and uart(4), which need to be recompiled. The style-inconsistencies introduced in some of the bus drivers will be fixed by tmm@ in a generic clean-up of the respective drivers later (he requested to add the changes in the "new" style). - Convert the powerpc MacIO bus driver and the drivers for its children to use the ofw_bus kobj-interface. This invloves removing the IVARs related to the "reg" property which were unused and a leftover from the NetBSD origini of the code. There's no ABI-breakage caused by this because none of these driver are currently built as modules. There are other powerpc bus drivers which can be converted to the ofw_bus kobj-interface, e.g. the PCI bus driver, which should be done together with converting powerpc to use the OFW PCI code from sparc64. - Make the SBus and FHC front-end of zs(4) and the sparc64 eeprom(4) take advantage of the ofw_bus kobj-interface and simplify them a bit. Reviewed by: grehan, tmm Approved by: re (scottl) Discussed with: tmm Tested with: Sun AX1105, AXe, Ultra 2, Ultra 60; PPC cross-build on i386
2004-08-12 17:41:33 +00:00
const char *
fhc_get_compat(device_t bus, device_t dev)
{
struct fhc_devinfo *dinfo;
dinfo = device_get_ivars(dev);
return (dinfo->fdi_compat);
}
const char *
fhc_get_model(device_t bus, device_t dev)
{
struct fhc_devinfo *dinfo;
dinfo = device_get_ivars(dev);
return (dinfo->fdi_model);
}
const char *
fhc_get_name(device_t bus, device_t dev)
{
struct fhc_devinfo *dinfo;
dinfo = device_get_ivars(dev);
return (dinfo->fdi_name);
}
phandle_t
fhc_get_node(device_t bus, device_t dev)
{
struct fhc_devinfo *dinfo;
dinfo = device_get_ivars(dev);
return (dinfo->fdi_node);
}
const char *
fhc_get_type(device_t bus, device_t dev)
{
struct fhc_devinfo *dinfo;
dinfo = device_get_ivars(dev);
return (dinfo->fdi_type);
}