mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-16 17:59:41 +02:00
fb189822fc
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@15918 3c298f89-4303-0410-b956-a3cf2f4a3e73
297 lines
12 KiB
C
297 lines
12 KiB
C
/*
|
|
* Copyright (c) 2004-2007 Atheros Communications Inc.
|
|
* All rights reserved.
|
|
*
|
|
*
|
|
* 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;
|
|
*
|
|
* Software distributed under the License is distributed on an "AS
|
|
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
|
|
* implied. See the License for the specific language governing
|
|
* rights and limitations under the License.
|
|
*
|
|
*
|
|
*
|
|
* HIF specific declarations and prototypes
|
|
*/
|
|
|
|
#ifndef _HIF_H_
|
|
#define _HIF_H_
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif /* __cplusplus */
|
|
|
|
/* Header files */
|
|
#include "a_config.h"
|
|
#include "athdefs.h"
|
|
#include "a_types.h"
|
|
#include "a_osapi.h"
|
|
|
|
typedef struct htc_callbacks HTC_CALLBACKS;
|
|
typedef struct hif_device HIF_DEVICE;
|
|
|
|
/*
|
|
* direction - Direction of transfer (HIF_READ/HIF_WRITE).
|
|
*/
|
|
#define HIF_READ 0x00000001
|
|
#define HIF_WRITE 0x00000002
|
|
#define HIF_DIR_MASK (HIF_READ | HIF_WRITE)
|
|
|
|
/*
|
|
* type - An interface may support different kind of read/write commands.
|
|
* The command type is divided into a basic and an extended command
|
|
* and can be specified using HIF_BASIC_IO/HIF_EXTENDED_IO.
|
|
*/
|
|
#define HIF_BASIC_IO 0x00000004
|
|
#define HIF_EXTENDED_IO 0x00000008
|
|
#define HIF_TYPE_MASK (HIF_BASIC_IO | HIF_EXTENDED_IO)
|
|
|
|
/*
|
|
* emode - This indicates the whether the command is to be executed in a
|
|
* blocking or non-blocking fashion (HIF_SYNCHRONOUS/
|
|
* HIF_ASYNCHRONOUS). The read/write data paths in HTC have been
|
|
* implemented using the asynchronous mode allowing the the bus
|
|
* driver to indicate the completion of operation through the
|
|
* registered callback routine. The requirement primarily comes
|
|
* from the contexts these operations get called from (a driver's
|
|
* transmit context or the ISR context in case of receive).
|
|
* Support for both of these modes is essential.
|
|
*/
|
|
#define HIF_SYNCHRONOUS 0x00000010
|
|
#define HIF_ASYNCHRONOUS 0x00000020
|
|
#define HIF_EMODE_MASK (HIF_SYNCHRONOUS | HIF_ASYNCHRONOUS)
|
|
|
|
/*
|
|
* dmode - An interface may support different kinds of commands based on
|
|
* the tradeoff between the amount of data it can carry and the
|
|
* setup time. Byte and Block modes are supported (HIF_BYTE_BASIS/
|
|
* HIF_BLOCK_BASIS). In case of latter, the data is rounded off
|
|
* to the nearest block size by padding. The size of the block is
|
|
* configurable at compile time using the HIF_BLOCK_SIZE and is
|
|
* negotiated with the target during initialization after the
|
|
* dragon interrupts are enabled.
|
|
*/
|
|
#define HIF_BYTE_BASIS 0x00000040
|
|
#define HIF_BLOCK_BASIS 0x00000080
|
|
#define HIF_DMODE_MASK (HIF_BYTE_BASIS | HIF_BLOCK_BASIS)
|
|
|
|
/*
|
|
* amode - This indicates if the address has to be incremented on dragon
|
|
* after every read/write operation (HIF?FIXED_ADDRESS/
|
|
* HIF_INCREMENTAL_ADDRESS).
|
|
*/
|
|
#define HIF_FIXED_ADDRESS 0x00000100
|
|
#define HIF_INCREMENTAL_ADDRESS 0x00000200
|
|
#define HIF_AMODE_MASK (HIF_FIXED_ADDRESS | HIF_INCREMENTAL_ADDRESS)
|
|
|
|
#define HIF_WR_ASYNC_BYTE_FIX \
|
|
(HIF_WRITE | HIF_ASYNCHRONOUS | HIF_EXTENDED_IO | HIF_BYTE_BASIS | HIF_FIXED_ADDRESS)
|
|
#define HIF_WR_ASYNC_BYTE_INC \
|
|
(HIF_WRITE | HIF_ASYNCHRONOUS | HIF_EXTENDED_IO | HIF_BYTE_BASIS | HIF_INCREMENTAL_ADDRESS)
|
|
#define HIF_WR_ASYNC_BLOCK_INC \
|
|
(HIF_WRITE | HIF_ASYNCHRONOUS | HIF_EXTENDED_IO | HIF_BLOCK_BASIS | HIF_INCREMENTAL_ADDRESS)
|
|
#define HIF_WR_SYNC_BYTE_FIX \
|
|
(HIF_WRITE | HIF_SYNCHRONOUS | HIF_EXTENDED_IO | HIF_BYTE_BASIS | HIF_FIXED_ADDRESS)
|
|
#define HIF_WR_SYNC_BYTE_INC \
|
|
(HIF_WRITE | HIF_SYNCHRONOUS | HIF_EXTENDED_IO | HIF_BYTE_BASIS | HIF_INCREMENTAL_ADDRESS)
|
|
#define HIF_WR_SYNC_BLOCK_INC \
|
|
(HIF_WRITE | HIF_SYNCHRONOUS | HIF_EXTENDED_IO | HIF_BLOCK_BASIS | HIF_INCREMENTAL_ADDRESS)
|
|
#define HIF_RD_SYNC_BYTE_INC \
|
|
(HIF_READ | HIF_SYNCHRONOUS | HIF_EXTENDED_IO | HIF_BYTE_BASIS | HIF_INCREMENTAL_ADDRESS)
|
|
#define HIF_RD_SYNC_BYTE_FIX \
|
|
(HIF_READ | HIF_SYNCHRONOUS | HIF_EXTENDED_IO | HIF_BYTE_BASIS | HIF_FIXED_ADDRESS)
|
|
#define HIF_RD_ASYNC_BYTE_FIX \
|
|
(HIF_READ | HIF_ASYNCHRONOUS | HIF_EXTENDED_IO | HIF_BYTE_BASIS | HIF_FIXED_ADDRESS)
|
|
#define HIF_RD_ASYNC_BLOCK_FIX \
|
|
(HIF_READ | HIF_ASYNCHRONOUS | HIF_EXTENDED_IO | HIF_BLOCK_BASIS | HIF_FIXED_ADDRESS)
|
|
#define HIF_RD_ASYNC_BYTE_INC \
|
|
(HIF_READ | HIF_ASYNCHRONOUS | HIF_EXTENDED_IO | HIF_BYTE_BASIS | HIF_INCREMENTAL_ADDRESS)
|
|
#define HIF_RD_ASYNC_BLOCK_INC \
|
|
(HIF_READ | HIF_ASYNCHRONOUS | HIF_EXTENDED_IO | HIF_BLOCK_BASIS | HIF_INCREMENTAL_ADDRESS)
|
|
#define HIF_RD_SYNC_BLOCK_INC \
|
|
(HIF_READ | HIF_SYNCHRONOUS | HIF_EXTENDED_IO | HIF_BLOCK_BASIS | HIF_INCREMENTAL_ADDRESS)
|
|
|
|
|
|
typedef enum {
|
|
HIF_DEVICE_POWER_STATE = 0,
|
|
HIF_DEVICE_GET_MBOX_BLOCK_SIZE,
|
|
HIF_DEVICE_GET_MBOX_ADDR,
|
|
HIF_DEVICE_GET_PENDING_EVENTS_FUNC,
|
|
HIF_DEVICE_GET_IRQ_PROC_MODE,
|
|
HIF_DEVICE_GET_RECV_EVENT_MASK_UNMASK_FUNC,
|
|
} HIF_DEVICE_CONFIG_OPCODE;
|
|
|
|
/*
|
|
* HIF CONFIGURE definitions:
|
|
*
|
|
* HIF_DEVICE_GET_MBOX_BLOCK_SIZE
|
|
* input : none
|
|
* output : array of 4 A_UINT32s
|
|
* notes: block size is returned for each mailbox (4)
|
|
*
|
|
* HIF_DEVICE_GET_MBOX_ADDR
|
|
* input : none
|
|
* output : array of 4 A_UINT32
|
|
* notes: address is returned for each mailbox (4) in the array
|
|
*
|
|
* HIF_DEVICE_GET_PENDING_EVENTS_FUNC
|
|
* input : none
|
|
* output: HIF_PENDING_EVENTS_FUNC function pointer
|
|
* notes: this is optional for the HIF layer, if the request is
|
|
* not handled then it indicates that the upper layer can use
|
|
* the standard device methods to get pending events (IRQs, mailbox messages etc..)
|
|
* otherwise it can call the function pointer to check pending events.
|
|
*
|
|
* HIF_DEVICE_GET_IRQ_PROC_MODE
|
|
* input : none
|
|
* output : HIF_DEVICE_IRQ_PROCESSING_MODE (interrupt processing mode)
|
|
* note: the hif layer interfaces with the underlying OS-specific bus driver. The HIF
|
|
* layer can report whether IRQ processing is requires synchronous behavior or
|
|
* can be processed using asynchronous bus requests (typically faster).
|
|
*
|
|
* HIF_DEVICE_GET_RECV_EVENT_MASK_UNMASK_FUNC
|
|
* input :
|
|
* output : HIF_MASK_UNMASK_RECV_EVENT function pointer
|
|
* notes: this is optional for the HIF layer. The HIF layer may require a special mechanism
|
|
* to mask receive message events. The upper layer can call this pointer when it needs
|
|
* to mask/unmask receive events (in case it runs out of buffers).
|
|
*
|
|
*
|
|
*/
|
|
|
|
typedef enum {
|
|
HIF_DEVICE_IRQ_SYNC_ONLY, /* for HIF implementations that require the DSR to process all
|
|
interrupts before returning */
|
|
HIF_DEVICE_IRQ_ASYNC_SYNC, /* for HIF implementations that allow DSR to process interrupts
|
|
using ASYNC I/O (that is HIFAckInterrupt can be called at a
|
|
later time */
|
|
} HIF_DEVICE_IRQ_PROCESSING_MODE;
|
|
|
|
#define HIF_MAX_DEVICES 1
|
|
|
|
struct htc_callbacks {
|
|
A_UCHAR *name;
|
|
A_UINT32 id;
|
|
A_STATUS (* deviceInsertedHandler)(void *hif_handle);
|
|
A_STATUS (* deviceRemovedHandler)(void *htc_handle, A_STATUS status);
|
|
A_STATUS (* deviceSuspendHandler)(void *htc_handle);
|
|
A_STATUS (* deviceResumeHandler)(void *htc_handle);
|
|
A_STATUS (* deviceWakeupHandler)(void *htc_handle);
|
|
A_STATUS (* rwCompletionHandler)(void *context, A_STATUS status);
|
|
A_STATUS (* dsrHandler)(void *htc_handle);
|
|
};
|
|
|
|
|
|
#define HIF_OTHER_EVENTS (1 << 0) /* other interrupts (non-Recv) are pending, host
|
|
needs to read the register table to figure out what */
|
|
#define HIF_RECV_MSG_AVAIL (1 << 1) /* pending recv packet */
|
|
|
|
typedef struct _HIF_PENDING_EVENTS_INFO {
|
|
A_UINT32 Events;
|
|
A_UINT32 LookAhead;
|
|
} HIF_PENDING_EVENTS_INFO;
|
|
|
|
/* function to get pending events , some HIF modules use special mechanisms
|
|
* to detect packet available and other interrupts */
|
|
typedef A_STATUS ( *HIF_PENDING_EVENTS_FUNC)(HIF_DEVICE *device,
|
|
HIF_PENDING_EVENTS_INFO *pEvents,
|
|
void *AsyncContext);
|
|
|
|
#define HIF_MASK_RECV TRUE
|
|
#define HIF_UNMASK_RECV FALSE
|
|
/* function to mask recv events */
|
|
typedef A_STATUS ( *HIF_MASK_UNMASK_RECV_EVENT)(HIF_DEVICE *device,
|
|
A_BOOL Mask,
|
|
void *AsyncContext);
|
|
|
|
|
|
/*
|
|
* This API is used by the HTC layer to initialize the HIF layer and to
|
|
* register different callback routines. Support for following events has
|
|
* been captured - DSR, Read/Write completion, Device insertion/removal,
|
|
* Device suspension/resumption/wakeup. In addition to this, the API is
|
|
* also used to register the name and the revision of the chip. The latter
|
|
* can be used to verify the revision of the chip read from the device
|
|
* before reporting it to HTC.
|
|
*/
|
|
int HIFInit(HTC_CALLBACKS *callbacks);
|
|
|
|
/*
|
|
* This API is used to provide the read/write interface over the specific bus
|
|
* interface.
|
|
* address - Starting address in the dragon's address space. For mailbox
|
|
* writes, it refers to the start of the mbox boundary. It should
|
|
* be ensured that the last byte falls on the mailbox's EOM. For
|
|
* mailbox reads, it refers to the end of the mbox boundary.
|
|
* buffer - Pointer to the buffer containg the data to be transmitted or
|
|
* received.
|
|
* length - Amount of data to be transmitted or received.
|
|
* request - Characterizes the attributes of the command.
|
|
*/
|
|
A_STATUS
|
|
HIFReadWrite(HIF_DEVICE *device,
|
|
A_UINT32 address,
|
|
A_UCHAR *buffer,
|
|
A_UINT32 length,
|
|
A_UINT32 request,
|
|
void *context);
|
|
|
|
/*
|
|
* This can be initiated from the unload driver context ie when the HTCShutdown
|
|
* routine is called.
|
|
*/
|
|
void HIFShutDownDevice(HIF_DEVICE *device);
|
|
|
|
/*
|
|
* This should translate to an acknowledgment to the bus driver indicating that
|
|
* the previous interrupt request has been serviced and the all the relevant
|
|
* sources have been cleared. HTC is ready to process more interrupts.
|
|
* This should prevent the bus driver from raising an interrupt unless the
|
|
* previous one has been serviced and acknowledged using the previous API.
|
|
*/
|
|
void HIFAckInterrupt(HIF_DEVICE *device);
|
|
|
|
void HIFMaskInterrupt(HIF_DEVICE *device);
|
|
|
|
void HIFUnMaskInterrupt(HIF_DEVICE *device);
|
|
|
|
/*
|
|
* This set of functions are to be used by the bus driver to notify
|
|
* the HIF module about various events.
|
|
* These are not implemented if the bus driver provides an alternative
|
|
* way for this notification though callbacks for instance.
|
|
*/
|
|
int HIFInsertEventNotify(void);
|
|
|
|
int HIFRemoveEventNotify(void);
|
|
|
|
int HIFIRQEventNotify(void);
|
|
|
|
int HIFRWCompleteEventNotify(void);
|
|
|
|
/*
|
|
* This function associates a opaque handle with the HIF layer
|
|
* to be used in communication with upper layer i.e. HTC.
|
|
* This would normaly be a pointer to htc_target data structure.
|
|
*/
|
|
void HIFSetHandle(void *hif_handle, void *handle);
|
|
|
|
A_STATUS
|
|
HIFConfigureDevice(HIF_DEVICE *device, HIF_DEVICE_CONFIG_OPCODE opcode,
|
|
void *config, A_UINT32 configLen);
|
|
|
|
|
|
struct device;
|
|
struct device*
|
|
HIFGetOSDevice(HIF_DEVICE *device);
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* _HIF_H_ */
|