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path: root/drivers/bcma/main.c
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-rw-r--r--drivers/bcma/main.c247
1 files changed, 247 insertions, 0 deletions
diff --git a/drivers/bcma/main.c b/drivers/bcma/main.c
new file mode 100644
index 000000000000..be52344ed19d
--- /dev/null
+++ b/drivers/bcma/main.c
@@ -0,0 +1,247 @@
+/*
+ * 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;
+ 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)