X-Git-Url: http://www.pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fmmc%2Fcore%2Fsdio_bus.c;h=46284b52739785bbc768c6458214e5c0936323a2;hb=d1b268630875a7713b5d468a0c03403c5b721c8e;hp=78e0381f55ac9492c934e6169946a13cf14fef8a;hpb=b1538bcf75e2e11459947ec4d4329ed04fbe2b2c;p=linux-2.6-omap-h63xx.git

diff --git a/drivers/mmc/core/sdio_bus.c b/drivers/mmc/core/sdio_bus.c
index 78e0381f55a..46284b52739 100644
--- a/drivers/mmc/core/sdio_bus.c
+++ b/drivers/mmc/core/sdio_bus.c
@@ -21,37 +21,144 @@
 #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,
@@ -95,7 +202,10 @@ static void sdio_release_func(struct device *dev)
 {
 	struct sdio_func *func = dev_to_sdio_func(dev);
 
-	sdio_free_cis(func);
+	sdio_free_func_cis(func);
+
+	if (func->info)
+		kfree(func->info);
 
 	kfree(func);
 }
@@ -107,12 +217,10 @@ struct sdio_func *sdio_alloc_func(struct mmc_card *card)
 {
 	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);
@@ -131,8 +239,7 @@ int sdio_add_func(struct sdio_func *func)
 {
 	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)