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/*
* Broadcom specific AMBA
* Bus subsystem
*
* Licensed under the GNU/GPL. See COPYING for details.
*/
#include "bcma_private.h"
#include <linux/bcma/bcma.h>
MODULE_DESCRIPTION("Broadcom's specific AMBA driver");
MODULE_LICENSE("GPL");
static int bcma_bus_match(struct device *dev, struct device_driver *drv);
static int bcma_device_probe(struct device *dev);
static int bcma_device_remove(struct device *dev);
static ssize_t manuf_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct bcma_device *core = container_of(dev, struct bcma_device, dev);
return sprintf(buf, "0x%03X\n", core->id.manuf);
}
static ssize_t id_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct bcma_device *core = container_of(dev, struct bcma_device, dev);
return sprintf(buf, "0x%03X\n", core->id.id);
}
static ssize_t rev_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct bcma_device *core = container_of(dev, struct bcma_device, dev);
return sprintf(buf, "0x%02X\n", core->id.rev);
}
static ssize_t class_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct bcma_device *core = container_of(dev, struct bcma_device, dev);
return sprintf(buf, "0x%X\n", core->id.class);
}
static struct device_attribute bcma_device_attrs[] = {
__ATTR_RO(manuf),
__ATTR_RO(id),
__ATTR_RO(rev),
__ATTR_RO(class),
__ATTR_NULL,
};
static struct bus_type bcma_bus_type = {
.name = "bcma",
.match = bcma_bus_match,
.probe = bcma_device_probe,
.remove = bcma_device_remove,
.dev_attrs = bcma_device_attrs,
};
static struct bcma_device *bcma_find_core(struct bcma_bus *bus, u16 coreid)
{
struct bcma_device *core;
list_for_each_entry(core, &bus->cores, list) {
if (core->id.id == coreid)
return core;
}
return NULL;
}
static void bcma_release_core_dev(struct device *dev)
{
struct bcma_device *core = container_of(dev, struct bcma_device, dev);
kfree(core);
}
static int bcma_register_cores(struct bcma_bus *bus)
{
struct bcma_device *core;
int err, dev_id = 0;
list_for_each_entry(core, &bus->cores, list) {
/* We support that cores ourself */
switch (core->id.id) {
case BCMA_CORE_CHIPCOMMON:
case BCMA_CORE_PCI:
case BCMA_CORE_PCIE:
continue;
}
core->dev.release = bcma_release_core_dev;
core->dev.bus = &bcma_bus_type;
dev_set_name(&core->dev, "bcma%d:%d", 0/*bus->num*/, dev_id);
switch (bus->hosttype) {
case BCMA_HOSTTYPE_PCI:
core->dev.parent = &bus->host_pci->dev;
core->dma_dev = &bus->host_pci->dev;
core->irq = bus->host_pci->irq;
break;
case BCMA_HOSTTYPE_NONE:
case BCMA_HOSTTYPE_SDIO:
break;
}
err = device_register(&core->dev);
if (err) {
pr_err("Could not register dev for core 0x%03X\n",
core->id.id);
continue;
}
core->dev_registered = true;
dev_id++;
}
return 0;
}
static void bcma_unregister_cores(struct bcma_bus *bus)
{
struct bcma_device *core;
list_for_each_entry(core, &bus->cores, list) {
if (core->dev_registered)
device_unregister(&core->dev);
}
}
int bcma_bus_register(struct bcma_bus *bus)
{
int err;
struct bcma_device *core;
/* Scan for devices (cores) */
err = bcma_bus_scan(bus);
if (err) {
pr_err("Failed to scan: %d\n", err);
return -1;
}
/* Init CC core */
core = bcma_find_core(bus, BCMA_CORE_CHIPCOMMON);
if (core) {
bus->drv_cc.core = core;
bcma_core_chipcommon_init(&bus->drv_cc);
}
/* Init PCIE core */
core = bcma_find_core(bus, BCMA_CORE_PCIE);
if (core) {
bus->drv_pci.core = core;
bcma_core_pci_init(&bus->drv_pci);
}
/* Register found cores */
bcma_register_cores(bus);
pr_info("Bus registered\n");
return 0;
}
EXPORT_SYMBOL_GPL(bcma_bus_register);
void bcma_bus_unregister(struct bcma_bus *bus)
{
bcma_unregister_cores(bus);
}
EXPORT_SYMBOL_GPL(bcma_bus_unregister);
int __bcma_driver_register(struct bcma_driver *drv, struct module *owner)
{
drv->drv.name = drv->name;
drv->drv.bus = &bcma_bus_type;
drv->drv.owner = owner;
return driver_register(&drv->drv);
}
EXPORT_SYMBOL_GPL(__bcma_driver_register);
void bcma_driver_unregister(struct bcma_driver *drv)
{
driver_unregister(&drv->drv);
}
EXPORT_SYMBOL_GPL(bcma_driver_unregister);
static int bcma_bus_match(struct device *dev, struct device_driver *drv)
{
struct bcma_device *core = container_of(dev, struct bcma_device, dev);
struct bcma_driver *adrv = container_of(drv, struct bcma_driver, drv);
const struct bcma_device_id *cid = &core->id;
const struct bcma_device_id *did;
for (did = adrv->id_table; did->manuf || did->id || did->rev; did++) {
if ((did->manuf == cid->manuf || did->manuf == BCMA_ANY_MANUF) &&
(did->id == cid->id || did->id == BCMA_ANY_ID) &&
(did->rev == cid->rev || did->rev == BCMA_ANY_REV) &&
(did->class == cid->class || did->class == BCMA_ANY_CLASS))
return 1;
}
return 0;
}
static int bcma_device_probe(struct device *dev)
{
struct bcma_device *core = container_of(dev, struct bcma_device, dev);
struct bcma_driver *adrv = container_of(dev->driver, struct bcma_driver,
drv);
int err = 0;
if (adrv->probe)
err = adrv->probe(core);
return err;
}
static int bcma_device_remove(struct device *dev)
{
struct bcma_device *core = container_of(dev, struct bcma_device, dev);
struct bcma_driver *adrv = container_of(dev->driver, struct bcma_driver,
drv);
if (adrv->remove)
adrv->remove(core);
return 0;
}
static int __init bcma_modinit(void)
{
int err;
err = bus_register(&bcma_bus_type);
if (err)
return err;
#ifdef CONFIG_BCMA_HOST_PCI
err = bcma_host_pci_init();
if (err) {
pr_err("PCI host initialization failed\n");
err = 0;
}
#endif
return err;
}
fs_initcall(bcma_modinit);
static void __exit bcma_modexit(void)
{
#ifdef CONFIG_BCMA_HOST_PCI
bcma_host_pci_exit();
#endif
bus_unregister(&bcma_bus_type);
}
module_exit(bcma_modexit)
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