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/*
*
* Copyright (c) 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.
*
*
*
*/
#ifndef AR6K_H_
#define AR6K_H_
#define AR6K_MAILBOXES 4
/* HTC runs over mailbox 0 */
#define HTC_MAILBOX 0
#define AR6K_TARGET_DEBUG_INTR_MASK 0x01
#define OTHER_INTS_ENABLED (INT_STATUS_ENABLE_ERROR_MASK | \
INT_STATUS_ENABLE_CPU_MASK | \
INT_STATUS_ENABLE_COUNTER_MASK)
//#define MBOXHW_UNIT_TEST 1
#include "athstartpack.h"
typedef PREPACK struct _AR6K_IRQ_PROC_REGISTERS {
A_UINT8 host_int_status;
A_UINT8 cpu_int_status;
A_UINT8 error_int_status;
A_UINT8 counter_int_status;
A_UINT8 mbox_frame;
A_UINT8 rx_lookahead_valid;
A_UINT8 hole[2];
A_UINT32 rx_lookahead[2];
} POSTPACK AR6K_IRQ_PROC_REGISTERS;
#define AR6K_IRQ_PROC_REGS_SIZE sizeof(AR6K_IRQ_PROC_REGISTERS)
typedef PREPACK struct _AR6K_IRQ_ENABLE_REGISTERS {
A_UINT8 int_status_enable;
A_UINT8 cpu_int_status_enable;
A_UINT8 error_status_enable;
A_UINT8 counter_int_status_enable;
} POSTPACK AR6K_IRQ_ENABLE_REGISTERS;
#include "athendpack.h"
#define AR6K_IRQ_ENABLE_REGS_SIZE sizeof(AR6K_IRQ_ENABLE_REGISTERS)
#define AR6K_REG_IO_BUFFER_SIZE 32
#define AR6K_MAX_REG_IO_BUFFERS 8
/* buffers for ASYNC I/O */
typedef struct AR6K_ASYNC_REG_IO_BUFFER {
HTC_PACKET HtcPacket; /* we use an HTC packet as a wrapper for our async register-based I/O */
A_UINT8 Buffer[AR6K_REG_IO_BUFFER_SIZE];
} AR6K_ASYNC_REG_IO_BUFFER;
typedef struct _AR6K_DEVICE {
A_MUTEX_T Lock;
AR6K_IRQ_PROC_REGISTERS IrqProcRegisters;
AR6K_IRQ_ENABLE_REGISTERS IrqEnableRegisters;
void *HIFDevice;
A_UINT32 BlockSize;
A_UINT32 BlockMask;
A_UINT32 MailboxAddress;
HIF_PENDING_EVENTS_FUNC GetPendingEventsFunc;
void *HTCContext;
HTC_PACKET_QUEUE RegisterIOList;
AR6K_ASYNC_REG_IO_BUFFER RegIOBuffers[AR6K_MAX_REG_IO_BUFFERS];
void (*TargetFailureCallback)(void *Context);
A_STATUS (*MessagePendingCallback)(void *Context, A_UINT32 LookAhead, A_BOOL *pAsyncProc);
HIF_DEVICE_IRQ_PROCESSING_MODE HifIRQProcessingMode;
HIF_MASK_UNMASK_RECV_EVENT HifMaskUmaskRecvEvent;
} AR6K_DEVICE;
#define IS_DEV_IRQ_PROCESSING_ASYNC_ALLOWED(pDev) ((pDev)->HifIRQProcessingMode != HIF_DEVICE_IRQ_SYNC_ONLY)
A_STATUS DevSetup(AR6K_DEVICE *pDev);
A_STATUS DevUnmaskInterrupts(AR6K_DEVICE *pDev);
A_STATUS DevMaskInterrupts(AR6K_DEVICE *pDev);
A_STATUS DevPollMboxMsgRecv(AR6K_DEVICE *pDev,
A_UINT32 *pLookAhead,
int TimeoutMS);
A_STATUS DevRWCompletionHandler(void *context, A_STATUS status);
A_STATUS DevDsrHandler(void *context);
A_STATUS DevCheckPendingRecvMsgsAsync(void *context);
void DevDumpRegisters(AR6K_IRQ_PROC_REGISTERS *pIrqProcRegs,
AR6K_IRQ_ENABLE_REGISTERS *pIrqEnableRegs);
#define DEV_STOP_RECV_ASYNC TRUE
#define DEV_STOP_RECV_SYNC FALSE
#define DEV_ENABLE_RECV_ASYNC TRUE
#define DEV_ENABLE_RECV_SYNC FALSE
A_STATUS DevStopRecv(AR6K_DEVICE *pDev, A_BOOL ASyncMode);
A_STATUS DevEnableRecv(AR6K_DEVICE *pDev, A_BOOL ASyncMode);
static INLINE A_STATUS DevSendPacket(AR6K_DEVICE *pDev, HTC_PACKET *pPacket, A_UINT32 SendLength) {
A_UINT32 paddedLength;
A_BOOL sync = (pPacket->Completion == NULL) ? TRUE : FALSE;
A_STATUS status;
/* adjust the length to be a multiple of block size if appropriate */
paddedLength = (SendLength + (pDev->BlockMask)) &
(~(pDev->BlockMask));
#if 0 // BufferLength may not be set in , fix this...
if (paddedLength > pPacket->BufferLength) {
AR_DEBUG_ASSERT(FALSE);
if (pPacket->Completion != NULL) {
COMPLETE_HTC_PACKET(pPacket,A_EINVAL);
}
return A_EINVAL;
}
#endif
AR_DEBUG_PRINTF(ATH_DEBUG_SEND,
("DevSendPacket, Padded Length: %d Mbox:0x%X (mode:%s)\n",
paddedLength,
pDev->MailboxAddress,
sync ? "SYNC" : "ASYNC"));
status = HIFReadWrite(pDev->HIFDevice,
pDev->MailboxAddress,
pPacket->pBuffer,
paddedLength, /* the padded length */
sync ? HIF_WR_SYNC_BLOCK_INC : HIF_WR_ASYNC_BLOCK_INC,
sync ? NULL : pPacket); /* pass the packet as the context to the HIF request */
if (sync) {
pPacket->Status = status;
}
return status;
}
static INLINE A_STATUS DevRecvPacket(AR6K_DEVICE *pDev, HTC_PACKET *pPacket, A_UINT32 RecvLength) {
A_UINT32 paddedLength;
A_STATUS status;
A_BOOL sync = (pPacket->Completion == NULL) ? TRUE : FALSE;
/* adjust the length to be a multiple of block size if appropriate */
paddedLength = (RecvLength + (pDev->BlockMask)) &
(~(pDev->BlockMask));
if (paddedLength > pPacket->BufferLength) {
AR_DEBUG_ASSERT(FALSE);
AR_DEBUG_PRINTF(ATH_DEBUG_ERR,
("DevRecvPacket, Not enough space for padlen:%d recvlen:%d bufferlen:%d \n",
paddedLength,RecvLength,pPacket->BufferLength));
if (pPacket->Completion != NULL) {
COMPLETE_HTC_PACKET(pPacket,A_EINVAL);
}
return A_EINVAL;
}
AR_DEBUG_PRINTF(ATH_DEBUG_RECV,
("DevRecvPacket, Padded Length: %d Mbox:0x%X (mode:%s)\n",
paddedLength,
pDev->MailboxAddress,
sync ? "SYNC" : "ASYNC"));
status = HIFReadWrite(pDev->HIFDevice,
pDev->MailboxAddress,
pPacket->pBuffer,
paddedLength,
sync ? HIF_RD_SYNC_BLOCK_INC : HIF_RD_ASYNC_BLOCK_INC,
sync ? NULL : pPacket); /* pass the packet as the context to the HIF request */
if (sync) {
pPacket->Status = status;
}
return status;
}
#ifdef MBOXHW_UNIT_TEST
A_STATUS DoMboxHWTest(AR6K_DEVICE *pDev);
#endif
#endif /*AR6K_H_*/
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