diff options
Diffstat (limited to 'target/linux/s3c24xx/files-2.6.31/drivers/ar6000/ar6000/ar6000_raw_if.c')
| -rw-r--r-- | target/linux/s3c24xx/files-2.6.31/drivers/ar6000/ar6000/ar6000_raw_if.c | 440 |
1 files changed, 0 insertions, 440 deletions
diff --git a/target/linux/s3c24xx/files-2.6.31/drivers/ar6000/ar6000/ar6000_raw_if.c b/target/linux/s3c24xx/files-2.6.31/drivers/ar6000/ar6000/ar6000_raw_if.c deleted file mode 100644 index 4443bb2673..0000000000 --- a/target/linux/s3c24xx/files-2.6.31/drivers/ar6000/ar6000/ar6000_raw_if.c +++ /dev/null @@ -1,440 +0,0 @@ -/* - * - * 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. - * - * - * - */ - -#include "ar6000_drv.h" - -#ifdef HTC_RAW_INTERFACE - -static void -ar6000_htc_raw_read_cb(void *Context, HTC_PACKET *pPacket) -{ - AR_SOFTC_T *ar = (AR_SOFTC_T *)Context; - raw_htc_buffer *busy; - HTC_RAW_STREAM_ID streamID; - - busy = (raw_htc_buffer *)pPacket->pPktContext; - A_ASSERT(busy != NULL); - - if (pPacket->Status == A_ECANCELED) { - /* - * HTC provides A_ECANCELED status when it doesn't want to be refilled - * (probably due to a shutdown) - */ - return; - } - - streamID = arEndpoint2RawStreamID(ar,pPacket->Endpoint); - A_ASSERT(streamID != HTC_RAW_STREAM_NOT_MAPPED); - -#ifdef CF - if (down_trylock(&ar->raw_htc_read_sem[streamID])) { -#else - if (down_interruptible(&ar->raw_htc_read_sem[streamID])) { -#endif /* CF */ - AR_DEBUG2_PRINTF("Unable to down the semaphore\n"); - } - - A_ASSERT((pPacket->Status != A_OK) || - (pPacket->pBuffer == (busy->data + HTC_HEADER_LEN))); - - busy->length = pPacket->ActualLength + HTC_HEADER_LEN; - busy->currPtr = HTC_HEADER_LEN; - ar->read_buffer_available[streamID] = TRUE; - //AR_DEBUG_PRINTF("raw read cb: 0x%X 0x%X \n", busy->currPtr,busy->length); - up(&ar->raw_htc_read_sem[streamID]); - - /* Signal the waiting process */ - AR_DEBUG2_PRINTF("Waking up the StreamID(%d) read process\n", streamID); - wake_up_interruptible(&ar->raw_htc_read_queue[streamID]); -} - -static void -ar6000_htc_raw_write_cb(void *Context, HTC_PACKET *pPacket) -{ - AR_SOFTC_T *ar = (AR_SOFTC_T *)Context; - raw_htc_buffer *free; - HTC_RAW_STREAM_ID streamID; - - free = (raw_htc_buffer *)pPacket->pPktContext; - A_ASSERT(free != NULL); - - if (pPacket->Status == A_ECANCELED) { - /* - * HTC provides A_ECANCELED status when it doesn't want to be refilled - * (probably due to a shutdown) - */ - return; - } - - streamID = arEndpoint2RawStreamID(ar,pPacket->Endpoint); - A_ASSERT(streamID != HTC_RAW_STREAM_NOT_MAPPED); - -#ifdef CF - if (down_trylock(&ar->raw_htc_write_sem[streamID])) { -#else - if (down_interruptible(&ar->raw_htc_write_sem[streamID])) { -#endif - AR_DEBUG2_PRINTF("Unable to down the semaphore\n"); - } - - A_ASSERT(pPacket->pBuffer == (free->data + HTC_HEADER_LEN)); - - free->length = 0; - ar->write_buffer_available[streamID] = TRUE; - up(&ar->raw_htc_write_sem[streamID]); - - /* Signal the waiting process */ - AR_DEBUG2_PRINTF("Waking up the StreamID(%d) write process\n", streamID); - wake_up_interruptible(&ar->raw_htc_write_queue[streamID]); -} - -/* connect to a service */ -static A_STATUS ar6000_connect_raw_service(AR_SOFTC_T *ar, - HTC_RAW_STREAM_ID StreamID) -{ - A_STATUS status; - HTC_SERVICE_CONNECT_RESP response; - A_UINT8 streamNo; - HTC_SERVICE_CONNECT_REQ connect; - - do { - - A_MEMZERO(&connect,sizeof(connect)); - /* pass the stream ID as meta data to the RAW streams service */ - streamNo = (A_UINT8)StreamID; - connect.pMetaData = &streamNo; - connect.MetaDataLength = sizeof(A_UINT8); - /* these fields are the same for all endpoints */ - connect.EpCallbacks.pContext = ar; - connect.EpCallbacks.EpTxComplete = ar6000_htc_raw_write_cb; - connect.EpCallbacks.EpRecv = ar6000_htc_raw_read_cb; - /* simple interface, we don't need these optional callbacks */ - connect.EpCallbacks.EpRecvRefill = NULL; - connect.EpCallbacks.EpSendFull = NULL; - connect.EpCallbacks.EpSendAvail = NULL; - connect.MaxSendQueueDepth = RAW_HTC_WRITE_BUFFERS_NUM; - - /* connect to the raw streams service, we may be able to get 1 or more - * connections, depending on WHAT is running on the target */ - connect.ServiceID = HTC_RAW_STREAMS_SVC; - - A_MEMZERO(&response,sizeof(response)); - - /* try to connect to the raw stream, it is okay if this fails with - * status HTC_SERVICE_NO_MORE_EP */ - status = HTCConnectService(ar->arHtcTarget, - &connect, - &response); - - if (A_FAILED(status)) { - if (response.ConnectRespCode == HTC_SERVICE_NO_MORE_EP) { - AR_DEBUG_PRINTF("HTC RAW , No more streams allowed \n"); - status = A_OK; - } - break; - } - - /* set endpoint mapping for the RAW HTC streams */ - arSetRawStream2EndpointIDMap(ar,StreamID,response.Endpoint); - - AR_DEBUG_PRINTF("HTC RAW : stream ID: %d, endpoint: %d\n", - StreamID, arRawStream2EndpointID(ar,StreamID)); - - } while (FALSE); - - return status; -} - -int ar6000_htc_raw_open(AR_SOFTC_T *ar) -{ - A_STATUS status; - int streamID, endPt, count2; - raw_htc_buffer *buffer; - HTC_SERVICE_ID servicepriority; - - A_ASSERT(ar->arHtcTarget != NULL); - - /* wait for target */ - status = HTCWaitTarget(ar->arHtcTarget); - - if (A_FAILED(status)) { - AR_DEBUG_PRINTF("HTCWaitTarget failed (%d)\n", status); - return -ENODEV; - } - - for (endPt = 0; endPt < ENDPOINT_MAX; endPt++) { - ar->arEp2RawMapping[endPt] = HTC_RAW_STREAM_NOT_MAPPED; - } - - for (streamID = HTC_RAW_STREAM_0; streamID < HTC_RAW_STREAM_NUM_MAX; streamID++) { - /* Initialize the data structures */ - init_MUTEX(&ar->raw_htc_read_sem[streamID]); - init_MUTEX(&ar->raw_htc_write_sem[streamID]); - init_waitqueue_head(&ar->raw_htc_read_queue[streamID]); - init_waitqueue_head(&ar->raw_htc_write_queue[streamID]); - - /* try to connect to the raw service */ - status = ar6000_connect_raw_service(ar,streamID); - - if (A_FAILED(status)) { - break; - } - - if (arRawStream2EndpointID(ar,streamID) == 0) { - break; - } - - for (count2 = 0; count2 < RAW_HTC_READ_BUFFERS_NUM; count2 ++) { - /* Initialize the receive buffers */ - buffer = ar->raw_htc_write_buffer[streamID][count2]; - memset(buffer, 0, sizeof(raw_htc_buffer)); - buffer = ar->raw_htc_read_buffer[streamID][count2]; - memset(buffer, 0, sizeof(raw_htc_buffer)); - - SET_HTC_PACKET_INFO_RX_REFILL(&buffer->HTCPacket, - buffer, - buffer->data, - AR6000_BUFFER_SIZE, - arRawStream2EndpointID(ar,streamID)); - - /* Queue buffers to HTC for receive */ - if ((status = HTCAddReceivePkt(ar->arHtcTarget, &buffer->HTCPacket)) != A_OK) - { - BMIInit(); - return -EIO; - } - } - - for (count2 = 0; count2 < RAW_HTC_WRITE_BUFFERS_NUM; count2 ++) { - /* Initialize the receive buffers */ - buffer = ar->raw_htc_write_buffer[streamID][count2]; - memset(buffer, 0, sizeof(raw_htc_buffer)); - } - - ar->read_buffer_available[streamID] = FALSE; - ar->write_buffer_available[streamID] = TRUE; - } - - if (A_FAILED(status)) { - return -EIO; - } - - AR_DEBUG_PRINTF("HTC RAW, number of streams the target supports: %d \n", streamID); - - servicepriority = HTC_RAW_STREAMS_SVC; /* only 1 */ - - /* set callbacks and priority list */ - HTCSetCreditDistribution(ar->arHtcTarget, - ar, - NULL, /* use default */ - NULL, /* use default */ - &servicepriority, - 1); - - /* Start the HTC component */ - if ((status = HTCStart(ar->arHtcTarget)) != A_OK) { - BMIInit(); - return -EIO; - } - - (ar)->arRawIfInit = TRUE; - - return 0; -} - -int ar6000_htc_raw_close(AR_SOFTC_T *ar) -{ - A_PRINTF("ar6000_htc_raw_close called \n"); - HTCStop(ar->arHtcTarget); - - /* reset the device */ - ar6000_reset_device(ar->arHifDevice, ar->arTargetType); - /* Initialize the BMI component */ - BMIInit(); - - return 0; -} - -raw_htc_buffer * -get_filled_buffer(AR_SOFTC_T *ar, HTC_RAW_STREAM_ID StreamID) -{ - int count; - raw_htc_buffer *busy; - - /* Check for data */ - for (count = 0; count < RAW_HTC_READ_BUFFERS_NUM; count ++) { - busy = ar->raw_htc_read_buffer[StreamID][count]; - if (busy->length) { - break; - } - } - if (busy->length) { - ar->read_buffer_available[StreamID] = TRUE; - } else { - ar->read_buffer_available[StreamID] = FALSE; - } - - return busy; -} - -ssize_t ar6000_htc_raw_read(AR_SOFTC_T *ar, HTC_RAW_STREAM_ID StreamID, - char __user *buffer, size_t length) -{ - int readPtr; - raw_htc_buffer *busy; - - if (arRawStream2EndpointID(ar,StreamID) == 0) { - AR_DEBUG_PRINTF("StreamID(%d) not connected! \n", StreamID); - return -EFAULT; - } - - if (down_interruptible(&ar->raw_htc_read_sem[StreamID])) { - return -ERESTARTSYS; - } - - busy = get_filled_buffer(ar,StreamID); - while (!ar->read_buffer_available[StreamID]) { - up(&ar->raw_htc_read_sem[StreamID]); - - /* Wait for the data */ - AR_DEBUG2_PRINTF("Sleeping StreamID(%d) read process\n", StreamID); - if (wait_event_interruptible(ar->raw_htc_read_queue[StreamID], - ar->read_buffer_available[StreamID])) - { - return -EINTR; - } - if (down_interruptible(&ar->raw_htc_read_sem[StreamID])) { - return -ERESTARTSYS; - } - busy = get_filled_buffer(ar,StreamID); - } - - /* Read the data */ - readPtr = busy->currPtr; - if (length > busy->length - HTC_HEADER_LEN) { - length = busy->length - HTC_HEADER_LEN; - } - if (copy_to_user(buffer, &busy->data[readPtr], length)) { - up(&ar->raw_htc_read_sem[StreamID]); - return -EFAULT; - } - - busy->currPtr += length; - - //AR_DEBUG_PRINTF("raw read ioctl: currPTR : 0x%X 0x%X \n", busy->currPtr,busy->length); - - if (busy->currPtr == busy->length) - { - busy->currPtr = 0; - busy->length = 0; - HTC_PACKET_RESET_RX(&busy->HTCPacket); - //AR_DEBUG_PRINTF("raw read ioctl: ep for packet:%d \n", busy->HTCPacket.Endpoint); - HTCAddReceivePkt(ar->arHtcTarget, &busy->HTCPacket); - } - ar->read_buffer_available[StreamID] = FALSE; - up(&ar->raw_htc_read_sem[StreamID]); - - return length; -} - -static raw_htc_buffer * -get_free_buffer(AR_SOFTC_T *ar, HTC_ENDPOINT_ID StreamID) -{ - int count; - raw_htc_buffer *free; - - free = NULL; - for (count = 0; count < RAW_HTC_WRITE_BUFFERS_NUM; count ++) { - free = ar->raw_htc_write_buffer[StreamID][count]; - if (free->length == 0) { - break; - } - } - if (!free->length) { - ar->write_buffer_available[StreamID] = TRUE; - } else { - ar->write_buffer_available[StreamID] = FALSE; - } - - return free; -} - -ssize_t ar6000_htc_raw_write(AR_SOFTC_T *ar, HTC_RAW_STREAM_ID StreamID, - char __user *buffer, size_t length) -{ - int writePtr; - raw_htc_buffer *free; - - if (arRawStream2EndpointID(ar,StreamID) == 0) { - AR_DEBUG_PRINTF("StreamID(%d) not connected! \n", StreamID); - return -EFAULT; - } - - if (down_interruptible(&ar->raw_htc_write_sem[StreamID])) { - return -ERESTARTSYS; - } - - /* Search for a free buffer */ - free = get_free_buffer(ar,StreamID); - - /* Check if there is space to write else wait */ - while (!ar->write_buffer_available[StreamID]) { - up(&ar->raw_htc_write_sem[StreamID]); - - /* Wait for buffer to become free */ - AR_DEBUG2_PRINTF("Sleeping StreamID(%d) write process\n", StreamID); - if (wait_event_interruptible(ar->raw_htc_write_queue[StreamID], - ar->write_buffer_available[StreamID])) - { - return -EINTR; - } - if (down_interruptible(&ar->raw_htc_write_sem[StreamID])) { - return -ERESTARTSYS; - } - free = get_free_buffer(ar,StreamID); - } - - /* Send the data */ - writePtr = HTC_HEADER_LEN; - if (length > (AR6000_BUFFER_SIZE - HTC_HEADER_LEN)) { - length = AR6000_BUFFER_SIZE - HTC_HEADER_LEN; - } - - if (copy_from_user(&free->data[writePtr], buffer, length)) { - up(&ar->raw_htc_read_sem[StreamID]); - return -EFAULT; - } - - free->length = length; - - SET_HTC_PACKET_INFO_TX(&free->HTCPacket, - free, - &free->data[writePtr], - length, - arRawStream2EndpointID(ar,StreamID), - AR6K_DATA_PKT_TAG); - - HTCSendPkt(ar->arHtcTarget,&free->HTCPacket); - - ar->write_buffer_available[StreamID] = FALSE; - up(&ar->raw_htc_write_sem[StreamID]); - - return length; -} -#endif /* HTC_RAW_INTERFACE */ |