-/******************************************************************
+/*
+ * MUSB OTG driver DMA controller abstraction
+ *
* Copyright 2005 Mentor Graphics Corporation
* Copyright (C) 2005-2006 by Texas Instruments
+ * Copyright (C) 2006-2007 Nokia Corporation
*
- * This file is part of the Inventra Controller Driver for Linux.
- *
- * The Inventra Controller Driver for Linux is free software; you
- * can redistribute it and/or modify it under the terms of the GNU
- * General Public License version 2 as published by the Free Software
- * Foundation.
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
*
- * The Inventra Controller Driver for Linux is distributed in
- * the hope that it will be useful, but WITHOUT ANY WARRANTY;
- * without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
- * License for more details.
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with The Inventra Controller Driver for Linux ; if not,
- * write to the Free Software Foundation, Inc., 59 Temple Place,
- * Suite 330, Boston, MA 02111-1307 USA
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
*
- * ANY DOWNLOAD, USE, REPRODUCTION, MODIFICATION OR DISTRIBUTION
- * OF THIS DRIVER INDICATES YOUR COMPLETE AND UNCONDITIONAL ACCEPTANCE
- * OF THOSE TERMS.THIS DRIVER IS PROVIDED "AS IS" AND MENTOR GRAPHICS
- * MAKES NO WARRANTIES, EXPRESS OR IMPLIED, RELATED TO THIS DRIVER.
- * MENTOR GRAPHICS SPECIFICALLY DISCLAIMS ALL IMPLIED WARRANTIES
- * OF MERCHANTABILITY; FITNESS FOR A PARTICULAR PURPOSE AND
- * NON-INFRINGEMENT. MENTOR GRAPHICS DOES NOT PROVIDE SUPPORT
- * SERVICES OR UPDATES FOR THIS DRIVER, EVEN IF YOU ARE A MENTOR
- * GRAPHICS SUPPORT CUSTOMER.
- ******************************************************************/
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
#ifndef __MUSB_DMA_H__
#define __MUSB_DMA_H__
#define is_cppi_enabled() 0
#endif
+#ifdef CONFIG_USB_TUSB_OMAP_DMA
+#define tusb_dma_omap() 1
+#else
+#define tusb_dma_omap() 0
+#endif
/*
* DMA channel status ... updated by the dma controller driver whenever that
*/
enum dma_channel_status {
/* unallocated */
- MGC_DMA_STATUS_UNKNOWN,
+ MUSB_DMA_STATUS_UNKNOWN,
/* allocated ... but not busy, no errors */
- MGC_DMA_STATUS_FREE,
+ MUSB_DMA_STATUS_FREE,
/* busy ... transactions are active */
- MGC_DMA_STATUS_BUSY,
+ MUSB_DMA_STATUS_BUSY,
/* transaction(s) aborted due to ... dma or memory bus error */
- MGC_DMA_STATUS_BUS_ABORT,
+ MUSB_DMA_STATUS_BUS_ABORT,
/* transaction(s) aborted due to ... core error or USB fault */
- MGC_DMA_STATUS_CORE_ABORT
+ MUSB_DMA_STATUS_CORE_ABORT
};
struct dma_controller;
/**
* struct dma_channel - A DMA channel.
- * @pPrivateData: channel-private data
- * @wMaxLength: the maximum number of bytes the channel can move in one
+ * @private_data: channel-private data
+ * @max_len: the maximum number of bytes the channel can move in one
* transaction (typically representing many USB maximum-sized packets)
- * @dwActualLength: how many bytes have been transferred
- * @bStatus: current channel status (updated e.g. on interrupt)
- * @bDesiredMode: TRUE if mode 1 is desired; FALSE if mode 0 is desired
+ * @actual_len: how many bytes have been transferred
+ * @status: current channel status (updated e.g. on interrupt)
+ * @desired_mode: TRUE if mode 1 is desired; FALSE if mode 0 is desired
*
* channels are associated with an endpoint for the duration of at least
* one usb transfer.
*/
struct dma_channel {
- void *pPrivateData;
+ void *private_data;
// FIXME not void* private_data, but a dma_controller *
- size_t dwMaxLength;
- size_t dwActualLength;
- enum dma_channel_status bStatus;
- u8 bDesiredMode;
+ size_t max_len;
+ size_t actual_len;
+ enum dma_channel_status status;
+ u8 desired_mode;
};
-/*
- * Program a DMA channel to move data at the core's request.
- * The local core endpoint and direction should already be known,
- * since they are specified in the channel_alloc call.
- *
- * @channel: pointer to a channel obtained by channel_alloc
- * @maxpacket: the maximum packet size
- * @bMode: TRUE if mode 1; FALSE if mode 0
- * @dma_addr: base address of data (in DMA space)
- * @length: the number of bytes to transfer; no larger than the channel's
- * reported dwMaxLength
- *
- * Returns TRUE on success, else FALSE
- */
-typedef int (*MGC_pfDmaProgramChannel) (
- struct dma_channel *channel,
- u16 maxpacket,
- u8 bMode,
- dma_addr_t dma_addr,
- u32 length);
-
/*
* dma_channel_status - return status of dma channel
* @c: the channel
static inline enum dma_channel_status
dma_channel_status(struct dma_channel *c)
{
- return (is_dma_capable() && c) ? c->bStatus : MGC_DMA_STATUS_UNKNOWN;
+ return (is_dma_capable() && c) ? c->status : MUSB_DMA_STATUS_UNKNOWN;
}
/**
* struct dma_controller - A DMA Controller.
- * @pPrivateData: controller-private data;
+ * @private_data: controller-private data;
* @start: call this to start a DMA controller;
* return 0 on success, else negative errno
* @stop: call this to stop a DMA controller
* Controllers manage dma channels.
*/
struct dma_controller {
- void *pPrivateData;
+ void *private_data;
int (*start)(struct dma_controller *);
int (*stop)(struct dma_controller *);
struct dma_channel *(*channel_alloc)(struct dma_controller *,
struct musb_hw_ep *, u8 is_tx);
void (*channel_release)(struct dma_channel *);
- MGC_pfDmaProgramChannel channel_program;
+ int (*channel_program)(struct dma_channel *channel,
+ u16 maxpacket, u8 mode,
+ dma_addr_t dma_addr,
+ u32 length);
int (*channel_abort)(struct dma_channel *);
};
/* called after channel_program(), may indicate a fault */
-extern void musb_dma_completion(struct musb *musb, u8 bLocalEnd, u8 bTransmit);
+extern void musb_dma_completion(struct musb *musb, u8 epnum, u8 transmit);
extern struct dma_controller *__init
projects / linux-2.6-omap-h63xx.git / blobdiff