aeb2d2626b
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.
280 lines
8.9 KiB
C
280 lines
8.9 KiB
C
/* $NetBSD: usbdivar.h,v 1.39 1999/11/10 04:19:59 mycroft Exp $ */
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/* $FreeBSD$ */
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/*
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Lennart Augustsson (augustss@carlstedt.se) at
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* Carlstedt Research & Technology.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/* From usb_mem.h */
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DECLARE_USB_DMA_T;
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struct usbd_xfer;
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struct usbd_pipe;
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struct usbd_endpoint {
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usb_endpoint_descriptor_t *edesc;
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int refcnt;
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};
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struct usbd_bus_methods {
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usbd_status (*open_pipe)__P((struct usbd_pipe *pipe));
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void (*do_poll)__P((struct usbd_bus *));
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usbd_status (*allocm)__P((struct usbd_bus *, usb_dma_t *,
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u_int32_t bufsize));
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void (*freem)__P((struct usbd_bus *, usb_dma_t *));
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};
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struct usbd_pipe_methods {
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usbd_status (*transfer)__P((usbd_xfer_handle xfer));
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usbd_status (*start)__P((usbd_xfer_handle xfer));
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void (*abort)__P((usbd_xfer_handle xfer));
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void (*close)__P((usbd_pipe_handle pipe));
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void (*cleartoggle)__P((usbd_pipe_handle pipe));
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void (*done)__P((usbd_xfer_handle xfer));
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};
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struct usbd_port {
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usb_port_status_t status;
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u_int16_t power; /* mA of current on port */
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u_int8_t portno;
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u_int8_t restartcnt;
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#define USBD_RESTART_MAX 5
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struct usbd_device *device;
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struct usbd_device *parent; /* The ports hub */
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};
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struct usbd_hub {
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usbd_status (*explore)__P((usbd_device_handle hub));
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void *hubsoftc;
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usb_hub_descriptor_t hubdesc;
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struct usbd_port ports[1];
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};
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struct usb_softc;
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/*****/
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struct usbd_bus {
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/* Filled by HC driver */
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USBBASEDEVICE bdev; /* base device, host adapter */
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struct usbd_bus_methods *methods;
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u_int32_t pipe_size; /* size of a pipe struct */
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/* Filled by usb driver */
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struct usbd_device *root_hub;
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usbd_device_handle devices[USB_MAX_DEVICES];
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char needs_explore;/* a hub a signalled a change */
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char use_polling;
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struct usb_softc *usbctl;
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struct usb_device_stats stats;
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int intr_context;
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u_int no_intrs;
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#if defined(__NetBSD__) || defined(__OpenBSD__)
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bus_dma_tag_t dmatag; /* DMA tag */
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#endif
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};
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struct usbd_device {
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struct usbd_bus *bus;
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struct usbd_pipe *default_pipe;
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u_int8_t address;
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u_int8_t depth;
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u_int8_t lowspeed;
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u_int16_t power;
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u_int8_t self_powered;
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int config;
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int langid; /* language to use for strings */
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#define USBD_NOLANG (-1)
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usb_event_cookie_t cookie; /* unique connection id */
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struct usbd_port *powersrc;
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struct usbd_endpoint def_ep; /* for pipe 0 */
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usb_endpoint_descriptor_t def_ep_desc; /* for pipe 0 */
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struct usbd_interface *ifaces;
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usb_device_descriptor_t ddesc;
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usb_config_descriptor_t *cdesc; /* full config descr */
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struct usbd_quirks *quirks;
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struct usbd_hub *hub; /* only if this is a hub */
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device_ptr_t *subdevs; /* sub-devices, 0 terminated */
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};
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struct usbd_interface {
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struct usbd_device *device;
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usb_interface_descriptor_t *idesc;
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int index;
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int altindex;
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struct usbd_endpoint *endpoints;
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void *priv;
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LIST_HEAD(, usbd_pipe) pipes;
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};
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struct usbd_pipe {
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struct usbd_interface *iface;
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struct usbd_device *device;
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struct usbd_endpoint *endpoint;
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int refcnt;
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char running;
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SIMPLEQ_HEAD(, usbd_xfer) queue;
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LIST_ENTRY(usbd_pipe) next;
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usbd_xfer_handle intrxfer; /* used for repeating requests */
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char repeat;
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/* Filled by HC driver. */
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struct usbd_pipe_methods *methods;
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};
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struct usbd_xfer {
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struct usbd_pipe *pipe;
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void *priv;
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void *buffer;
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u_int32_t length;
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u_int32_t actlen;
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u_int16_t flags;
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u_int32_t timeout;
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usbd_status status;
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usbd_callback callback;
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__volatile char done;
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/* For control pipe */
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usb_device_request_t request;
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/* For isoc */
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u_int16_t *frlengths;
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int nframes;
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/* For memory allocation */
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struct usbd_device *device;
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usb_dma_t dmabuf;
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int rqflags;
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#define URQ_REQUEST 0x01
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#define URQ_AUTO_DMABUF 0x10
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#define URQ_DEV_DMABUF 0x20
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SIMPLEQ_ENTRY(usbd_xfer) next;
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void *hcpriv; /* private use by the HC driver */
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int hcprivint; /* ditto */
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#if defined(__FreeBSD__)
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struct callout_handle timo_handle;
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#endif
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};
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void usbd_init __P((void));
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void usbd_finish __P((void));
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/* Routines from usb_subr.c */
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int usbctlprint __P((void *, const char *));
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void usb_delay_ms __P((usbd_bus_handle, u_int));
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void usbd_devinfo_vp __P((usbd_device_handle, char *, char *));
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usbd_status usbd_reset_port __P((usbd_device_handle dev,
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int port, usb_port_status_t *ps));
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usbd_status usbd_setup_pipe __P((usbd_device_handle dev,
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usbd_interface_handle iface,
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struct usbd_endpoint *,
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usbd_pipe_handle *pipe));
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usbd_status usbd_new_device __P((device_ptr_t parent,
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usbd_bus_handle bus, int depth,
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int lowspeed, int port,
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struct usbd_port *));
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void usbd_remove_device __P((usbd_device_handle,
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struct usbd_port *));
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int usbd_printBCD __P((char *cp, int bcd));
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usbd_status usbd_fill_iface_data __P((usbd_device_handle dev,
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int i, int a));
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void usb_free_device __P((usbd_device_handle));
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usbd_status usb_insert_transfer __P((usbd_xfer_handle xfer));
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void usb_transfer_complete __P((usbd_xfer_handle xfer));
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void usb_disconnect_port __P((struct usbd_port *up, device_ptr_t));
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/* Routines from usb.c */
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int usb_bus_count __P((void));
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void usb_needs_explore __P((usbd_bus_handle));
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#ifdef DIAGNOSTIC
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#define SPLUSBCHECK \
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do { int _s = splusb(), _su = splusb(); \
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extern int cold; \
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if (!cold && _s != _su) printf("SPLUSBCHECK failed 0x%x!=0x%x, %s:%d\n", \
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_s, _su, __FILE__, __LINE__); \
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splx(_s); \
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} while (0)
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#else
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#define SPLUSBCHECK
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#endif
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/* Locator stuff. */
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#if defined(__NetBSD__)
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#include "locators.h"
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#elif defined(__FreeBSD__) || defined(__OpenBSD__)
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/* XXX these values are used to statically bind some elements in the USB tree
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* to specific driver instances. This should be somehow emulated in FreeBSD
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* but can be done later on.
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* The values are copied from the files.usb file in the NetBSD sources.
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*/
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#define UHUBCF_PORT_DEFAULT -1
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#define UHUBCF_CONFIGURATION_DEFAULT -1
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#define UHUBCF_INTERFACE_DEFAULT -1
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#define UHUBCF_VENDOR_DEFAULT -1
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#define UHUBCF_PRODUCT_DEFAULT -1
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#define UHUBCF_RELEASE_DEFAULT -1
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#endif
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#if defined (__OpenBSD__)
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#define UHUBCF_PORT 0
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#define UHUBCF_CONFIGURATION 1
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#define UHUBCF_INTERFACE 2
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#define UHUBCF_VENDOR 3
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#define UHUBCF_PRODUCT 4
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#define UHUBCF_RELEASE 5
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#endif
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#define uhubcf_port cf_loc[UHUBCF_PORT]
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#define uhubcf_configuration cf_loc[UHUBCF_CONFIGURATION]
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#define uhubcf_interface cf_loc[UHUBCF_INTERFACE]
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#define uhubcf_vendor cf_loc[UHUBCF_VENDOR]
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#define uhubcf_product cf_loc[UHUBCF_PRODUCT]
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#define uhubcf_release cf_loc[UHUBCF_RELEASE]
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#define UHUB_UNK_PORT UHUBCF_PORT_DEFAULT /* wildcarded 'port' */
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#define UHUB_UNK_CONFIGURATION UHUBCF_CONFIGURATION_DEFAULT /* wildcarded 'configuration' */
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#define UHUB_UNK_INTERFACE UHUBCF_INTERFACE_DEFAULT /* wildcarded 'interface' */
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#define UHUB_UNK_VENDOR UHUBCF_VENDOR_DEFAULT /* wildcarded 'vendor' */
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#define UHUB_UNK_PRODUCT UHUBCF_PRODUCT_DEFAULT /* wildcarded 'product' */
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#define UHUB_UNK_RELEASE UHUBCF_RELEASE_DEFAULT /* wildcarded 'release' */
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