#ifndef _USB_H_
#define _USB_H_
+#include <stdbool.h>
#include <fdtdec.h>
#include <usb_defs.h>
#include <linux/usb/ch9.h>
#include <asm/cache.h>
#include <part.h>
+extern bool usb_started; /* flag for the started/stopped USB status */
+
/*
* The EHCI spec says that we must align to at least 32 bytes. However,
* some platforms require larger alignment.
*/
enum usb_init_type {
USB_INIT_HOST,
- USB_INIT_DEVICE
+ USB_INIT_DEVICE,
+ USB_INIT_UNKNOWN,
};
/**********************************************************************
#endif
/* routines */
-int usb_init(void); /* initialize the USB Controller */
+
+/*
+ * usb_init() - initialize the USB Controllers
+ *
+ * Returns: 0 if OK, -ENOENT if there are no USB devices
+ */
+int usb_init(void);
+
int usb_stop(void); /* stop the USB Controller */
int usb_detect_change(void); /* detect if a USB device has been (un)plugged */
#define usb_get_ops(dev) ((struct dm_usb_ops *)(dev)->driver->ops)
#define usb_get_emul_ops(dev) ((struct dm_usb_ops *)(dev)->driver->ops)
-/**
- * usb_get_dev_index() - look up a device index number
- *
- * Look up devices using their index number (starting at 0). This works since
- * in U-Boot device addresses are allocated starting at 1 with no gaps.
- *
- * to work better with driver model.
- *
- * @bus: USB bus to check
- * @index: Index number of device to find (0=first). This is just the
- * device address less 1.
- */
-struct usb_device *usb_get_dev_index(struct udevice *bus, int index);
-
/**
* usb_setup_device() - set up a device ready for use
*
* @do_read: true to read the device descriptor before an address is set
* (should be false for XHCI buses, true otherwise)
* @parent: Parent device (either UCLASS_USB or UCLASS_USB_HUB)
- * @return 0 if OK, -ve on error */
+ * Return: 0 if OK, -ve on error */
int usb_setup_device(struct usb_device *dev, bool do_read,
struct usb_device *parent);
* @port: Hub port number (numbered from 1)
* @speed: USB speed to use for this device
* @devp: Returns pointer to device if all is well
- * @return 0 if OK, -ve on error
+ * Return: 0 if OK, -ve on error
*/
int usb_scan_device(struct udevice *parent, int port,
enum usb_device_speed speed, struct udevice **devp);
* will be a device with uclass UCLASS_USB.
*
* @dev: Device to check
- * @return The bus, or NULL if not found (this indicates a critical error in
+ * Return: The bus, or NULL if not found (this indicates a critical error in
* the USB stack
*/
struct udevice *usb_get_bus(struct udevice *dev);
* @devp: returns a pointer of a new device structure. With driver model this
* is a device pointer, but with legacy USB this pointer is
* driver-specific.
- * @return 0 if OK, -ENOSPC if we have found out of room for new devices
+ * Return: 0 if OK, -ENOSPC if we have found out of room for new devices
*/
int usb_alloc_new_device(struct udevice *controller, struct usb_device **devp);
* representation of this hub can be updated.
*
* @dev: Hub device
- * @return 0 if OK, -ve on error
+ * Return: 0 if OK, -ve on error
*/
int usb_update_hub_device(struct usb_device *dev);
*
* @dev: USB device
* @size: maximum transfer bytes
- * @return 0 if OK, -ve on error
+ * Return: 0 if OK, -ve on error
*/
int usb_get_max_xfer_size(struct usb_device *dev, size_t *size);
* @desc_list: List of points or USB descriptors, terminated by NULL.
* The first entry must be struct usb_device_descriptor,
* and others follow on after that.
- * @return 0 if OK, -ENOSYS if not implemented, other -ve on error
+ * Return: 0 if OK, -ENOSYS if not implemented, other -ve on error
*/
int usb_emul_setup_device(struct udevice *dev, struct usb_string *strings,
void **desc_list);
* @emul: Emulator device
* @udev: USB device (which the emulator is causing to appear)
* See struct dm_usb_ops for details on other parameters
- * @return 0 if OK, -ve on error
+ * Return: 0 if OK, -ve on error
*/
int usb_emul_control(struct udevice *emul, struct usb_device *udev,
unsigned long pipe, void *buffer, int length,
* @emul: Emulator device
* @udev: USB device (which the emulator is causing to appear)
* See struct dm_usb_ops for details on other parameters
- * @return 0 if OK, -ve on error
+ * Return: 0 if OK, -ve on error
*/
int usb_emul_bulk(struct udevice *emul, struct usb_device *udev,
unsigned long pipe, void *buffer, int length);
* @emul: Emulator device
* @udev: USB device (which the emulator is causing to appear)
* See struct dm_usb_ops for details on other parameters
- * @return 0 if OK, -ve on error
+ * Return: 0 if OK, -ve on error
*/
int usb_emul_int(struct udevice *emul, struct usb_device *udev,
unsigned long pipe, void *buffer, int length, int interval,
* @pipe: Describes pipe being used, and includes the device number
* @port1: Describes port number on the parent hub
* @emulp: Returns pointer to emulator, or NULL if not found
- * @return 0 if found, -ve on error
+ * Return: 0 if found, -ve on error
*/
int usb_emul_find(struct udevice *bus, ulong pipe, int port1,
struct udevice **emulp);
*
* @dev: USB device to check
* @emulp: Returns pointer to emulator, or NULL if not found
- * @return 0 if found, -ve on error
+ * Return: 0 if found, -ve on error
*/
int usb_emul_find_for_dev(struct udevice *dev, struct udevice **emulp);
* @ptr: a pointer to a list of USB descriptor pointers
* @type: type of USB descriptor to find
* @index: if @type is USB_DT_CONFIG, this is the configuration value
- * @return a pointer to the USB descriptor found, NULL if not found
+ * Return: a pointer to the USB descriptor found, NULL if not found
*/
struct usb_generic_descriptor **usb_emul_find_descriptor(
struct usb_generic_descriptor **ptr, int type, int index);
projects / J-u-boot.git / blobdiff