#include <linux/mmc/card.h>
#include <linux/mmc/sdio_func.h>
+#include "sdio_cis.h"
#include "sdio_bus.h"
#define dev_to_sdio_func(d) container_of(d, struct sdio_func, dev)
+#define to_sdio_driver(d) container_of(d, struct sdio_driver, drv)
+
+/* show configuration fields */
+#define sdio_config_attr(field, format_string) \
+static ssize_t \
+field##_show(struct device *dev, struct device_attribute *attr, char *buf) \
+{ \
+ struct sdio_func *func; \
+ \
+ func = dev_to_sdio_func (dev); \
+ return sprintf (buf, format_string, func->field); \
+}
+
+sdio_config_attr(class, "0x%02x\n");
+sdio_config_attr(vendor, "0x%04x\n");
+sdio_config_attr(device, "0x%04x\n");
+
+static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct sdio_func *func = dev_to_sdio_func (dev);
+
+ return sprintf(buf, "sdio:c%02Xv%04Xd%04X\n",
+ func->class, func->vendor, func->device);
+}
+
+static struct device_attribute sdio_dev_attrs[] = {
+ __ATTR_RO(class),
+ __ATTR_RO(vendor),
+ __ATTR_RO(device),
+ __ATTR_RO(modalias),
+ __ATTR_NULL,
+};
+
+static const struct sdio_device_id *sdio_match_one(struct sdio_func *func,
+ const struct sdio_device_id *id)
+{
+ if (id->class != (__u8)SDIO_ANY_ID && id->class != func->class)
+ return NULL;
+ if (id->vendor != (__u16)SDIO_ANY_ID && id->vendor != func->vendor)
+ return NULL;
+ if (id->device != (__u16)SDIO_ANY_ID && id->device != func->device)
+ return NULL;
+ return id;
+}
+
+static const struct sdio_device_id *sdio_match_device(struct sdio_func *func,
+ struct sdio_driver *sdrv)
+{
+ const struct sdio_device_id *ids;
+
+ ids = sdrv->id_table;
+
+ if (ids) {
+ while (ids->class || ids->vendor || ids->device) {
+ if (sdio_match_one(func, ids))
+ return ids;
+ ids++;
+ }
+ }
+
+ return NULL;
+}
-/*
- * This currently matches any SDIO function to any driver in order
- * to help initial development and testing.
- */
static int sdio_bus_match(struct device *dev, struct device_driver *drv)
{
- return 1;
+ struct sdio_func *func = dev_to_sdio_func(dev);
+ struct sdio_driver *sdrv = to_sdio_driver(drv);
+
+ if (sdio_match_device(func, sdrv))
+ return 1;
+
+ return 0;
}
static int
-sdio_bus_uevent(struct device *dev, char **envp, int num_envp, char *buf,
- int buf_size)
+sdio_bus_uevent(struct device *dev, struct kobj_uevent_env *env)
{
- envp[0] = NULL;
+ struct sdio_func *func = dev_to_sdio_func(dev);
+
+ if (add_uevent_var(env,
+ "SDIO_CLASS=%02X", func->class))
+ return -ENOMEM;
+
+ if (add_uevent_var(env,
+ "SDIO_ID=%04X:%04X", func->vendor, func->device))
+ return -ENOMEM;
+
+ if (add_uevent_var(env,
+ "MODALIAS=sdio:c%02Xv%04Xd%04X",
+ func->class, func->vendor, func->device))
+ return -ENOMEM;
return 0;
}
static int sdio_bus_probe(struct device *dev)
{
- return -ENODEV;
+ struct sdio_driver *drv = to_sdio_driver(dev->driver);
+ struct sdio_func *func = dev_to_sdio_func(dev);
+ const struct sdio_device_id *id;
+ int ret;
+
+ id = sdio_match_device(func, drv);
+ if (!id)
+ return -ENODEV;
+
+ /* Set the default block size so the driver is sure it's something
+ * sensible. */
+ sdio_claim_host(func);
+ ret = sdio_set_block_size(func, 0);
+ sdio_release_host(func);
+ if (ret)
+ return ret;
+
+ return drv->probe(func, id);
}
static int sdio_bus_remove(struct device *dev)
{
+ struct sdio_driver *drv = to_sdio_driver(dev->driver);
+ struct sdio_func *func = dev_to_sdio_func(dev);
+
+ drv->remove(func);
+
+ if (func->irq_handler) {
+ printk(KERN_WARNING "WARNING: driver %s did not remove "
+ "its interrupt handler!\n", drv->name);
+ sdio_claim_host(func);
+ sdio_release_irq(func);
+ sdio_release_host(func);
+ }
+
return 0;
}
static struct bus_type sdio_bus_type = {
.name = "sdio",
+ .dev_attrs = sdio_dev_attrs,
.match = sdio_bus_match,
.uevent = sdio_bus_uevent,
.probe = sdio_bus_probe,
bus_unregister(&sdio_bus_type);
}
+/**
+ * sdio_register_driver - register a function driver
+ * @drv: SDIO function driver
+ */
+int sdio_register_driver(struct sdio_driver *drv)
+{
+ drv->drv.name = drv->name;
+ drv->drv.bus = &sdio_bus_type;
+ return driver_register(&drv->drv);
+}
+EXPORT_SYMBOL_GPL(sdio_register_driver);
+
+/**
+ * sdio_unregister_driver - unregister a function driver
+ * @drv: SDIO function driver
+ */
+void sdio_unregister_driver(struct sdio_driver *drv)
+{
+ drv->drv.bus = &sdio_bus_type;
+ driver_unregister(&drv->drv);
+}
+EXPORT_SYMBOL_GPL(sdio_unregister_driver);
+
static void sdio_release_func(struct device *dev)
{
struct sdio_func *func = dev_to_sdio_func(dev);
+ sdio_free_func_cis(func);
+
+ if (func->info)
+ kfree(func->info);
+
kfree(func);
}
{
struct sdio_func *func;
- func = kmalloc(sizeof(struct sdio_func), GFP_KERNEL);
+ func = kzalloc(sizeof(struct sdio_func), GFP_KERNEL);
if (!func)
return ERR_PTR(-ENOMEM);
- memset(func, 0, sizeof(struct sdio_func));
-
func->card = card;
device_initialize(&func->dev);
{
int ret;
- snprintf(func->dev.bus_id, sizeof(func->dev.bus_id),
- "%s:%d", mmc_card_id(func->card), func->num);
+ dev_set_name(&func->dev, "%s:%d", mmc_card_id(func->card), func->num);
ret = device_add(&func->dev);
if (ret == 0)
projects / linux-2.6-omap-h63xx.git / blobdiff