Synchronisation with NetBSD as of 1999/11/16:

Cleaning up the code:
- Declare many functions static
- Change variable names to make them more self explanatory
- Change usbd_request_handle -> usbd_xfer_handle
- Syntactical changes
- Remove some unused code
- Other KNF changes

Interrupt context handling
- Change delay to usbd_delay_ms were possible (takes polling mode into
  account)
- Change detection mechanism for interrupt context

Add support for pre-allocation DMA-able memory by device driver

Add preliminary support for isochronous to the UHCI driver (not for OHCI
yet).

usb.c, uhci.c, ohci.c
- Initial attempt at detachable USB host controllers
- Handle the use_polling flag with a lttle more care and only set it if
we are cold booting.

usb.c, uhci.c ohci.c, usbdi.c usbdi_util.c usb_subr.c
- Make sure an aborted pipe is marked as not running.
- Start queued request in the right order.
- Insert some more DIAGNOSTIC sanity checks.
- Remove (almost) unused definitions USBD_XFER_OUT and USBD_XFER_IN.

usb.c, usb_subr.c
- Add an event mechanism so that a userland process can watch devices
  come and go.

ohci.c
- Handle the case when a USB transfer is so long that it crosses two
  page (4K) boundaries.  OHCI cannot do that with a single TD so we make
  a chain.

ulpt.c
- Use a bigger buffer when transferring data.
- Pre-allocate the DMA buffer.  This makes the driver slightly more
  efficient.
- Comment out the GET_DEVICE_ID code, because for some unknown reason it
  causes printing to fail sometimes.

usb.h
- Add a macro to extract the isoc type.
- Add a macro to check whether the routine has been entered after splusb
  and if not, complain.

usbdi.c
- Fix a glitch in dequeueing and aborting requests on interrupt pipes.
- Add a flag in the request to determine if the data copying is done by
  the driver or the usbdi layer.

1 files changed, 23 insertions, 19 deletions

diff --git a/sys/dev/usb/usbdi.h b/sys/dev/usb/usbdi.h
index 7fb4469..fef131d 100644
--- a/sys/dev/usb/usbdi.h
+++ b/sys/dev/usb/usbdi.h
@@ -1,4 +1,4 @@
-/*	$NetBSD: usbdi.h,v 1.28 1999/09/11 08:19:27 augustss Exp $	*/
+/*	$NetBSD: usbdi.h,v 1.31 1999/10/13 08:10:58 augustss Exp $	*/
 /*	$FreeBSD$	*/
 
 /*
@@ -42,11 +42,11 @@ typedef struct usbd_bus		*usbd_bus_handle;
 typedef struct usbd_device	*usbd_device_handle;
 typedef struct usbd_interface	*usbd_interface_handle;
 typedef struct usbd_pipe	*usbd_pipe_handle;
-typedef struct usbd_request	*usbd_request_handle;
+typedef struct usbd_xfer	*usbd_xfer_handle;
 typedef void			*usbd_private_handle;
 
-typedef enum { 				/* keep in sync with usbd_status_msgs */
-	USBD_NORMAL_COMPLETION = 0,	/* must be 0 */
+typedef enum {		/* keep in sync with usbd_status_msgs */ 
+	USBD_NORMAL_COMPLETION = 0, /* must be 0 */
 	USBD_IN_PROGRESS,
 	/* errors */
 	USBD_PENDING_REQUESTS,
@@ -72,15 +72,16 @@ typedef enum { 				/* keep in sync with usbd_status_msgs */
 
 typedef int usbd_lock_token;
 
-typedef void (*usbd_callback) __P((usbd_request_handle, usbd_private_handle,
+typedef void (*usbd_callback) __P((usbd_xfer_handle, usbd_private_handle,
 				   usbd_status));
 
 /* Open flags */
 #define USBD_EXCLUSIVE_USE	0x01
 
 /* Request flags */
+#define USBD_NO_COPY		0x01	/* do not copy data to DMA buffer */
+#define USBD_SYNCHRONOUS	0x02	/* wait for completion */
 /* in usb.h #define USBD_SHORT_XFER_OK	0x04*/	/* allow short reads */
-#define USBD_SYNCHRONOUS	0x08	/* wait for completion */
 
 #define USBD_NO_TIMEOUT 0
 #define USBD_DEFAULT_TIMEOUT 5000 /* ms = 5 s */
@@ -93,25 +94,25 @@ usbd_status usbd_open_pipe
 	__P((usbd_interface_handle iface, u_int8_t address,
 	     u_int8_t flags, usbd_pipe_handle *pipe));
 usbd_status usbd_close_pipe	__P((usbd_pipe_handle pipe));
-usbd_status usbd_transfer	__P((usbd_request_handle req));
-usbd_request_handle usbd_alloc_request	__P((usbd_device_handle));
-usbd_status usbd_free_request	__P((usbd_request_handle reqh));
+usbd_status usbd_transfer	__P((usbd_xfer_handle req));
+usbd_xfer_handle usbd_alloc_request	__P((usbd_device_handle));
+usbd_status usbd_free_request	__P((usbd_xfer_handle xfer));
 void usbd_setup_request	
-	__P((usbd_request_handle reqh, usbd_pipe_handle pipe,
+	__P((usbd_xfer_handle xfer, usbd_pipe_handle pipe,
 	     usbd_private_handle priv, void *buffer,
 	     u_int32_t length, u_int16_t flags, u_int32_t timeout,
 	     usbd_callback));
 void usbd_setup_default_request
-	__P((usbd_request_handle reqh, usbd_device_handle dev,
+	__P((usbd_xfer_handle xfer, usbd_device_handle dev,
 	     usbd_private_handle priv, u_int32_t timeout,
 	     usb_device_request_t *req,  void *buffer,
 	     u_int32_t length, u_int16_t flags, usbd_callback));
 void usbd_setup_isoc_request	
-	__P((usbd_request_handle reqh, usbd_pipe_handle pipe,
+	__P((usbd_xfer_handle xfer, usbd_pipe_handle pipe,
 	     usbd_private_handle priv, u_int16_t *frlengths,
-	     u_int32_t nframes, usbd_callback));
+	     u_int32_t nframes, u_int16_t flags, usbd_callback));
 void usbd_get_request_status
-	__P((usbd_request_handle reqh, usbd_private_handle *priv,
+	__P((usbd_xfer_handle xfer, usbd_private_handle *priv,
 	     void **buffer, u_int32_t *count, usbd_status *status));
 usb_endpoint_descriptor_t *usbd_interface2endpoint_descriptor
 	__P((usbd_interface_handle iface, u_int8_t address));
@@ -128,9 +129,10 @@ usbd_status usbd_device2interface_handle
 	__P((usbd_device_handle dev, u_int8_t ifaceno, usbd_interface_handle *iface));
 
 usbd_device_handle usbd_pipe2device_handle __P((usbd_pipe_handle));
-void *usbd_alloc_buffer __P((usbd_request_handle req, u_int32_t size));
-void usbd_free_buffer __P((usbd_request_handle req));
-usbd_status usbd_sync_transfer	__P((usbd_request_handle req));
+void *usbd_alloc_buffer __P((usbd_xfer_handle req, u_int32_t size));
+void usbd_free_buffer __P((usbd_xfer_handle req));
+void *usbd_get_buffer __P((usbd_xfer_handle xfer));
+usbd_status usbd_sync_transfer	__P((usbd_xfer_handle req));
 usbd_status usbd_open_pipe_intr
 	__P((usbd_interface_handle iface, u_int8_t address,
 	     u_int8_t flags, usbd_pipe_handle *pipe,
@@ -166,6 +168,10 @@ usb_endpoint_descriptor_t *usbd_find_edesc
 void usbd_dopoll __P((usbd_interface_handle));
 void usbd_set_polling __P((usbd_interface_handle iface, int on));
 
+const char *usbd_errstr __P((usbd_status err));
+
+void usbd_add_event __P((int, usbd_device_handle));
+
 /* NetBSD attachment information */
 
 /* Attach data */
@@ -229,8 +235,6 @@ void usbd_devinfo __P((usbd_device_handle, int, char *));
 struct usbd_quirks *usbd_get_quirks __P((usbd_device_handle));
 usb_endpoint_descriptor_t *usbd_get_endpoint_descriptor
 	__P((usbd_interface_handle iface, u_int8_t address));
-const char *usbd_errstr __P((usbd_status));
-
 
 #if defined(__FreeBSD__)
 int usbd_driver_load    __P((module_t mod, int what, void *arg));