mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
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fb189822fc
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@15918 3c298f89-4303-0410-b956-a3cf2f4a3e73
658 lines
20 KiB
C
658 lines
20 KiB
C
/*
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* Copyright (c) 2004-2007 Atheros Communications Inc.
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* All rights reserved.
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation;
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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*
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*
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*/
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#include "hif.h"
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#include "bmi.h"
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#include "htc_api.h"
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#include "bmi_internal.h"
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/*
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Although we had envisioned BMI to run on top of HTC, this is not what the
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final implementation boiled down to on dragon. Its a part of BSP and does
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not use the HTC protocol either. On the host side, however, we were still
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living with the original idea. I think the time has come to accept the truth
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and separate it from HTC which has been carrying BMI's burden all this while.
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It shall make HTC state machine relatively simpler
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*/
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/* APIs visible to the driver */
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void
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BMIInit(void)
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{
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bmiDone = FALSE;
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}
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A_STATUS
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BMIDone(HIF_DEVICE *device)
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{
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A_STATUS status;
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A_UINT32 cid;
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if (bmiDone) {
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AR_DEBUG_PRINTF (ATH_DEBUG_BMI, ("BMIDone skipped\n"));
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return A_OK;
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}
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AR_DEBUG_PRINTF(ATH_DEBUG_BMI, ("BMI Done: Enter (device: 0x%p)\n", device));
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bmiDone = TRUE;
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cid = BMI_DONE;
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status = bmiBufferSend(device, (A_UCHAR *)&cid, sizeof(cid));
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if (status != A_OK) {
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AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Unable to write to the device\n"));
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return A_ERROR;
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}
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AR_DEBUG_PRINTF(ATH_DEBUG_BMI, ("BMI Done: Exit\n"));
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return A_OK;
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}
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A_STATUS
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BMIGetTargetInfo(HIF_DEVICE *device, struct bmi_target_info *targ_info)
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{
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A_STATUS status;
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A_UINT32 cid;
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if (bmiDone) {
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AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Command disallowed\n"));
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return A_ERROR;
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}
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AR_DEBUG_PRINTF(ATH_DEBUG_BMI, ("BMI Get Target Info: Enter (device: 0x%p)\n", device));
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cid = BMI_GET_TARGET_INFO;
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status = bmiBufferSend(device, (A_UCHAR *)&cid, sizeof(cid));
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if (status != A_OK) {
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AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Unable to write to the device\n"));
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return A_ERROR;
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}
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status = bmiBufferReceive(device, (A_UCHAR *)&targ_info->target_ver,
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sizeof(targ_info->target_ver));
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if (status != A_OK) {
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AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Unable to read Target Version from the device\n"));
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return A_ERROR;
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}
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if (targ_info->target_ver == TARGET_VERSION_SENTINAL) {
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/* Determine how many bytes are in the Target's targ_info */
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status = bmiBufferReceive(device, (A_UCHAR *)&targ_info->target_info_byte_count,
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sizeof(targ_info->target_info_byte_count));
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if (status != A_OK) {
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AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Unable to read Target Info Byte Count from the device\n"));
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return A_ERROR;
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}
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/*
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* The Target's targ_info doesn't match the Host's targ_info.
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* We need to do some backwards compatibility work to make this OK.
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*/
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A_ASSERT(targ_info->target_info_byte_count == sizeof(*targ_info));
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/* Read the remainder of the targ_info */
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status = bmiBufferReceive(device,
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((A_UCHAR *)targ_info)+sizeof(targ_info->target_info_byte_count),
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sizeof(*targ_info)-sizeof(targ_info->target_info_byte_count));
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if (status != A_OK) {
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AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Unable to read Target Info (%d bytes) from the device\n",
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targ_info->target_info_byte_count));
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return A_ERROR;
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}
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} else {
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/*
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* Target must be an AR6001 whose firmware does not
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* support BMI_GET_TARGET_INFO. Construct the data
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* that it would have sent.
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*/
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targ_info->target_info_byte_count = sizeof(targ_info);
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targ_info->target_type = TARGET_TYPE_AR6001;
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}
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AR_DEBUG_PRINTF(ATH_DEBUG_BMI, ("BMI Get Target Info: Exit (ver: 0x%x type: 0x%x)\n",
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targ_info->target_ver, targ_info->target_type));
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printk("BMI Get Target Info: Exit (ver: 0x%x type: 0x%x)\n",
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targ_info->target_ver, targ_info->target_type);
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return A_OK;
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}
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A_STATUS
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BMIReadMemory(HIF_DEVICE *device,
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A_UINT32 address,
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A_UCHAR *buffer,
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A_UINT32 length)
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{
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A_UINT32 cid;
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A_STATUS status;
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A_UINT32 offset;
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A_UINT32 remaining, rxlen;
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static A_UCHAR data[BMI_DATASZ_MAX + sizeof(cid) + sizeof(address) + sizeof(length)];
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memset (&data, 0, BMI_DATASZ_MAX + sizeof(cid) + sizeof(address) + sizeof(length));
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if (bmiDone) {
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AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Command disallowed\n"));
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return A_ERROR;
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}
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AR_DEBUG_PRINTF(ATH_DEBUG_BMI,
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("BMI Read Memory: Enter (device: 0x%p, address: 0x%x, length: %d)\n",
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device, address, length));
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cid = BMI_READ_MEMORY;
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remaining = length;
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while (remaining)
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{
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rxlen = (remaining < BMI_DATASZ_MAX) ? remaining : BMI_DATASZ_MAX;
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offset = 0;
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A_MEMCPY(&data[offset], &cid, sizeof(cid));
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offset += sizeof(cid);
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A_MEMCPY(&data[offset], &address, sizeof(address));
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offset += sizeof(address);
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A_MEMCPY(&data[offset], &rxlen, sizeof(rxlen));
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offset += sizeof(length);
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status = bmiBufferSend(device, data, offset);
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if (status != A_OK) {
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AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Unable to write to the device\n"));
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return A_ERROR;
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}
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status = bmiBufferReceive(device, data, rxlen);
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if (status != A_OK) {
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AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Unable to read from the device\n"));
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return A_ERROR;
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}
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A_MEMCPY(&buffer[length - remaining], data, rxlen);
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remaining -= rxlen; address += rxlen;
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}
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AR_DEBUG_PRINTF(ATH_DEBUG_BMI, ("BMI Read Memory: Exit\n"));
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return A_OK;
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}
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A_STATUS
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BMIWriteMemory(HIF_DEVICE *device,
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A_UINT32 address,
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A_UCHAR *buffer,
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A_UINT32 length)
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{
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A_UINT32 cid;
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A_STATUS status;
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A_UINT32 offset;
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A_UINT32 remaining, txlen;
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const A_UINT32 header = sizeof(cid) + sizeof(address) + sizeof(length);
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static A_UCHAR data[BMI_DATASZ_MAX + sizeof(cid) + sizeof(address) + sizeof(length)];
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memset (&data, 0, header);
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if (bmiDone) {
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AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Command disallowed\n"));
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return A_ERROR;
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}
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AR_DEBUG_PRINTF(ATH_DEBUG_BMI,
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("BMI Write Memory: Enter (device: 0x%p, address: 0x%x, length: %d)\n",
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device, address, length));
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cid = BMI_WRITE_MEMORY;
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remaining = length;
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while (remaining)
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{
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txlen = (remaining < (BMI_DATASZ_MAX - header)) ?
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remaining : (BMI_DATASZ_MAX - header);
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offset = 0;
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A_MEMCPY(&data[offset], &cid, sizeof(cid));
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offset += sizeof(cid);
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A_MEMCPY(&data[offset], &address, sizeof(address));
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offset += sizeof(address);
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A_MEMCPY(&data[offset], &txlen, sizeof(txlen));
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offset += sizeof(txlen);
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A_MEMCPY(&data[offset], &buffer[length - remaining], txlen);
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offset += txlen;
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status = bmiBufferSend(device, data, offset);
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if (status != A_OK) {
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AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Unable to write to the device\n"));
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return A_ERROR;
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}
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remaining -= txlen; address += txlen;
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}
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AR_DEBUG_PRINTF(ATH_DEBUG_BMI, ("BMI Write Memory: Exit\n"));
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return A_OK;
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}
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A_STATUS
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BMIExecute(HIF_DEVICE *device,
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A_UINT32 address,
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A_UINT32 *param)
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{
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A_UINT32 cid;
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A_STATUS status;
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A_UINT32 offset;
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static A_UCHAR data[sizeof(cid) + sizeof(address) + sizeof(*param)];
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memset (&data, 0, sizeof(cid) + sizeof(address) + sizeof(*param));
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if (bmiDone) {
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AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Command disallowed\n"));
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return A_ERROR;
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}
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AR_DEBUG_PRINTF(ATH_DEBUG_BMI,
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("BMI Execute: Enter (device: 0x%p, address: 0x%x, param: %d)\n",
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device, address, *param));
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cid = BMI_EXECUTE;
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offset = 0;
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A_MEMCPY(&data[offset], &cid, sizeof(cid));
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offset += sizeof(cid);
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A_MEMCPY(&data[offset], &address, sizeof(address));
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offset += sizeof(address);
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A_MEMCPY(&data[offset], param, sizeof(*param));
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offset += sizeof(*param);
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status = bmiBufferSend(device, data, offset);
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if (status != A_OK) {
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AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Unable to write to the device\n"));
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return A_ERROR;
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}
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status = bmiBufferReceive(device, data, sizeof(*param));
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if (status != A_OK) {
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AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Unable to read from the device\n"));
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return A_ERROR;
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}
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A_MEMCPY(param, data, sizeof(*param));
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AR_DEBUG_PRINTF(ATH_DEBUG_BMI, ("BMI Execute: Exit (param: %d)\n", *param));
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return A_OK;
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}
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A_STATUS
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BMISetAppStart(HIF_DEVICE *device,
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A_UINT32 address)
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{
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A_UINT32 cid;
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A_STATUS status;
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A_UINT32 offset;
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static A_UCHAR data[sizeof(cid) + sizeof(address)];
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memset (&data, 0, sizeof(cid) + sizeof(address));
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if (bmiDone) {
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AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Command disallowed\n"));
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return A_ERROR;
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}
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AR_DEBUG_PRINTF(ATH_DEBUG_BMI,
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("BMI Set App Start: Enter (device: 0x%p, address: 0x%x)\n",
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device, address));
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cid = BMI_SET_APP_START;
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offset = 0;
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A_MEMCPY(&data[offset], &cid, sizeof(cid));
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offset += sizeof(cid);
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A_MEMCPY(&data[offset], &address, sizeof(address));
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offset += sizeof(address);
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status = bmiBufferSend(device, data, offset);
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if (status != A_OK) {
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AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Unable to write to the device\n"));
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return A_ERROR;
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}
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AR_DEBUG_PRINTF(ATH_DEBUG_BMI, ("BMI Set App Start: Exit\n"));
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return A_OK;
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}
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A_STATUS
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BMIReadSOCRegister(HIF_DEVICE *device,
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A_UINT32 address,
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A_UINT32 *param)
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{
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A_UINT32 cid;
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A_STATUS status;
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A_UINT32 offset;
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static A_UCHAR data[sizeof(cid) + sizeof(address)];
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memset (&data, 0, sizeof(cid) + sizeof(address));
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if (bmiDone) {
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AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Command disallowed\n"));
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return A_ERROR;
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}
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AR_DEBUG_PRINTF(ATH_DEBUG_BMI,
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("BMI Read SOC Register: Enter (device: 0x%p, address: 0x%x)\n",
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device, address));
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cid = BMI_READ_SOC_REGISTER;
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offset = 0;
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A_MEMCPY(&data[offset], &cid, sizeof(cid));
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offset += sizeof(cid);
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A_MEMCPY(&data[offset], &address, sizeof(address));
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offset += sizeof(address);
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status = bmiBufferSend(device, data, offset);
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if (status != A_OK) {
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AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Unable to write to the device\n"));
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return A_ERROR;
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}
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status = bmiBufferReceive(device, data, sizeof(*param));
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if (status != A_OK) {
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AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Unable to read from the device\n"));
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return A_ERROR;
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}
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A_MEMCPY(param, data, sizeof(*param));
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AR_DEBUG_PRINTF(ATH_DEBUG_BMI, ("BMI Read SOC Register: Exit (value: %d)\n", *param));
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return A_OK;
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}
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A_STATUS
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BMIWriteSOCRegister(HIF_DEVICE *device,
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A_UINT32 address,
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A_UINT32 param)
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{
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A_UINT32 cid;
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A_STATUS status;
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A_UINT32 offset;
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static A_UCHAR data[sizeof(cid) + sizeof(address) + sizeof(param)];
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memset (&data, 0, sizeof(cid) + sizeof(address) + sizeof(param));
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if (bmiDone) {
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AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Command disallowed\n"));
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return A_ERROR;
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}
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AR_DEBUG_PRINTF(ATH_DEBUG_BMI,
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("BMI Write SOC Register: Enter (device: 0x%p, address: 0x%x, param: %d)\n",
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device, address, param));
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cid = BMI_WRITE_SOC_REGISTER;
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offset = 0;
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A_MEMCPY(&data[offset], &cid, sizeof(cid));
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offset += sizeof(cid);
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A_MEMCPY(&data[offset], &address, sizeof(address));
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offset += sizeof(address);
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A_MEMCPY(&data[offset], ¶m, sizeof(param));
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offset += sizeof(param);
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status = bmiBufferSend(device, data, offset);
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if (status != A_OK) {
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AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Unable to write to the device\n"));
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return A_ERROR;
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}
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AR_DEBUG_PRINTF(ATH_DEBUG_BMI, ("BMI Read SOC Register: Exit\n"));
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return A_OK;
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}
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A_STATUS
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BMIrompatchInstall(HIF_DEVICE *device,
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A_UINT32 ROM_addr,
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A_UINT32 RAM_addr,
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A_UINT32 nbytes,
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A_UINT32 do_activate,
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A_UINT32 *rompatch_id)
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{
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A_UINT32 cid;
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A_STATUS status;
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A_UINT32 offset;
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static A_UCHAR data[sizeof(cid) + sizeof(ROM_addr) + sizeof(RAM_addr) +
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sizeof(nbytes) + sizeof(do_activate)];
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memset (&data, 0, sizeof(cid) + sizeof(ROM_addr) + sizeof(RAM_addr) +
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sizeof(nbytes) + sizeof(do_activate));
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if (bmiDone) {
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AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Command disallowed\n"));
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return A_ERROR;
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}
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AR_DEBUG_PRINTF(ATH_DEBUG_BMI,
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("BMI rompatch Install: Enter (device: 0x%p, ROMaddr: 0x%x, RAMaddr: 0x%x length: %d activate: %d)\n",
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device, ROM_addr, RAM_addr, nbytes, do_activate));
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cid = BMI_ROMPATCH_INSTALL;
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offset = 0;
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A_MEMCPY(&data[offset], &cid, sizeof(cid));
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offset += sizeof(cid);
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A_MEMCPY(&data[offset], &ROM_addr, sizeof(ROM_addr));
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offset += sizeof(ROM_addr);
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A_MEMCPY(&data[offset], &RAM_addr, sizeof(RAM_addr));
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offset += sizeof(RAM_addr);
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A_MEMCPY(&data[offset], &nbytes, sizeof(nbytes));
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offset += sizeof(nbytes);
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A_MEMCPY(&data[offset], &do_activate, sizeof(do_activate));
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offset += sizeof(do_activate);
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status = bmiBufferSend(device, data, offset);
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if (status != A_OK) {
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AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Unable to write to the device\n"));
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return A_ERROR;
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}
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status = bmiBufferReceive(device, (A_UCHAR *)rompatch_id, sizeof(*rompatch_id));
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if (status != A_OK) {
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AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Unable to read from the device\n"));
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return A_ERROR;
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}
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AR_DEBUG_PRINTF(ATH_DEBUG_BMI, ("BMI rompatch Install: (rompatch_id=%d)\n", *rompatch_id));
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return A_OK;
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}
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A_STATUS
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BMIrompatchUninstall(HIF_DEVICE *device,
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A_UINT32 rompatch_id)
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{
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A_UINT32 cid;
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A_STATUS status;
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A_UINT32 offset;
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static A_UCHAR data[sizeof(cid) + sizeof(rompatch_id)];
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memset (&data, 0, sizeof(cid) + sizeof(rompatch_id));
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if (bmiDone) {
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AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Command disallowed\n"));
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return A_ERROR;
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}
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AR_DEBUG_PRINTF(ATH_DEBUG_BMI,
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("BMI rompatch Uninstall: Enter (device: 0x%p, rompatch_id: %d)\n",
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device, rompatch_id));
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cid = BMI_ROMPATCH_UNINSTALL;
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offset = 0;
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A_MEMCPY(&data[offset], &cid, sizeof(cid));
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offset += sizeof(cid);
|
|
A_MEMCPY(&data[offset], &rompatch_id, sizeof(rompatch_id));
|
|
offset += sizeof(rompatch_id);
|
|
status = bmiBufferSend(device, data, offset);
|
|
if (status != A_OK) {
|
|
AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Unable to write to the device\n"));
|
|
return A_ERROR;
|
|
}
|
|
|
|
AR_DEBUG_PRINTF(ATH_DEBUG_BMI, ("BMI rompatch UNinstall: (rompatch_id=0x%x)\n", rompatch_id));
|
|
return A_OK;
|
|
}
|
|
|
|
static A_STATUS
|
|
_BMIrompatchChangeActivation(HIF_DEVICE *device,
|
|
A_UINT32 rompatch_count,
|
|
A_UINT32 *rompatch_list,
|
|
A_UINT32 do_activate)
|
|
{
|
|
A_UINT32 cid;
|
|
A_STATUS status;
|
|
A_UINT32 offset;
|
|
static A_UCHAR data[BMI_DATASZ_MAX + sizeof(cid) + sizeof(rompatch_count)];
|
|
A_UINT32 length;
|
|
|
|
memset (&data, 0, BMI_DATASZ_MAX + sizeof(cid) + sizeof(rompatch_count));
|
|
|
|
if (bmiDone) {
|
|
AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Command disallowed\n"));
|
|
return A_ERROR;
|
|
}
|
|
|
|
AR_DEBUG_PRINTF(ATH_DEBUG_BMI,
|
|
("BMI Change rompatch Activation: Enter (device: 0x%p, count: %d)\n",
|
|
device, rompatch_count));
|
|
|
|
cid = do_activate ? BMI_ROMPATCH_ACTIVATE : BMI_ROMPATCH_DEACTIVATE;
|
|
|
|
offset = 0;
|
|
A_MEMCPY(&data[offset], &cid, sizeof(cid));
|
|
offset += sizeof(cid);
|
|
A_MEMCPY(&data[offset], &rompatch_count, sizeof(rompatch_count));
|
|
offset += sizeof(rompatch_count);
|
|
length = rompatch_count * sizeof(*rompatch_list);
|
|
A_MEMCPY(&data[offset], rompatch_list, length);
|
|
offset += length;
|
|
status = bmiBufferSend(device, data, offset);
|
|
if (status != A_OK) {
|
|
AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Unable to write to the device\n"));
|
|
return A_ERROR;
|
|
}
|
|
|
|
AR_DEBUG_PRINTF(ATH_DEBUG_BMI, ("BMI Change rompatch Activation: Exit\n"));
|
|
|
|
return A_OK;
|
|
}
|
|
|
|
A_STATUS
|
|
BMIrompatchActivate(HIF_DEVICE *device,
|
|
A_UINT32 rompatch_count,
|
|
A_UINT32 *rompatch_list)
|
|
{
|
|
return _BMIrompatchChangeActivation(device, rompatch_count, rompatch_list, 1);
|
|
}
|
|
|
|
A_STATUS
|
|
BMIrompatchDeactivate(HIF_DEVICE *device,
|
|
A_UINT32 rompatch_count,
|
|
A_UINT32 *rompatch_list)
|
|
{
|
|
return _BMIrompatchChangeActivation(device, rompatch_count, rompatch_list, 0);
|
|
}
|
|
|
|
/* BMI Access routines */
|
|
A_STATUS
|
|
bmiBufferSend(HIF_DEVICE *device,
|
|
A_UCHAR *buffer,
|
|
A_UINT32 length)
|
|
{
|
|
A_STATUS status;
|
|
A_UINT32 timeout;
|
|
A_UINT32 address;
|
|
static A_UINT32 cmdCredits;
|
|
A_UINT32 mboxAddress[HTC_MAILBOX_NUM_MAX];
|
|
|
|
HIFConfigureDevice(device, HIF_DEVICE_GET_MBOX_ADDR,
|
|
&mboxAddress, sizeof(mboxAddress));
|
|
|
|
cmdCredits = 0;
|
|
timeout = BMI_COMMUNICATION_TIMEOUT;
|
|
|
|
while(timeout-- && !cmdCredits) {
|
|
/* Read the counter register to get the command credits */
|
|
address = COUNT_DEC_ADDRESS + (HTC_MAILBOX_NUM_MAX + ENDPOINT1) * 4;
|
|
/* hit the credit counter with a 4-byte access, the first byte read will hit the counter and cause
|
|
* a decrement, while the remaining 3 bytes has no effect. The rationale behind this is to
|
|
* make all HIF accesses 4-byte aligned */
|
|
status = HIFReadWrite(device, address, (A_UINT8 *)&cmdCredits, 4,
|
|
HIF_RD_SYNC_BYTE_INC, NULL);
|
|
if (status != A_OK) {
|
|
AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Unable to decrement the command credit count register\n"));
|
|
return A_ERROR;
|
|
}
|
|
/* the counter is only 8=bits, ignore anything in the upper 3 bytes */
|
|
cmdCredits &= 0xFF;
|
|
}
|
|
|
|
if (cmdCredits) {
|
|
address = mboxAddress[ENDPOINT1];
|
|
status = HIFReadWrite(device, address, buffer, length,
|
|
HIF_WR_SYNC_BYTE_INC, NULL);
|
|
if (status != A_OK) {
|
|
AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Unable to send the BMI data to the device\n"));
|
|
return A_ERROR;
|
|
}
|
|
} else {
|
|
AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("BMI Communication timeout\n"));
|
|
return A_ERROR;
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
A_STATUS
|
|
bmiBufferReceive(HIF_DEVICE *device,
|
|
A_UCHAR *buffer,
|
|
A_UINT32 length)
|
|
{
|
|
A_STATUS status;
|
|
A_UINT32 address;
|
|
A_UINT32 timeout;
|
|
static A_UINT32 cmdCredits;
|
|
A_UINT32 mboxAddress[HTC_MAILBOX_NUM_MAX];
|
|
|
|
HIFConfigureDevice(device, HIF_DEVICE_GET_MBOX_ADDR,
|
|
&mboxAddress, sizeof(mboxAddress));
|
|
|
|
cmdCredits = 0;
|
|
timeout = BMI_COMMUNICATION_TIMEOUT;
|
|
while(timeout-- && !cmdCredits) {
|
|
/* Read the counter register to get the command credits */
|
|
address = COUNT_ADDRESS + (HTC_MAILBOX_NUM_MAX + ENDPOINT1) * 1;
|
|
/* read the counter using a 4-byte read. Since the counter is NOT auto-decrementing,
|
|
* we can read this counter multiple times using a non-incrementing address mode.
|
|
* The rationale here is to make all HIF accesses a multiple of 4 bytes */
|
|
status = HIFReadWrite(device, address, (A_UINT8 *)&cmdCredits, sizeof(cmdCredits),
|
|
HIF_RD_SYNC_BYTE_FIX, NULL);
|
|
if (status != A_OK) {
|
|
AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Unable to read the command credit count register\n"));
|
|
return A_ERROR;
|
|
}
|
|
/* we did a 4-byte read to the same count register so mask off upper bytes */
|
|
cmdCredits &= 0xFF;
|
|
status = A_ERROR;
|
|
}
|
|
|
|
if (cmdCredits) {
|
|
address = mboxAddress[ENDPOINT1];
|
|
status = HIFReadWrite(device, address, buffer, length,
|
|
HIF_RD_SYNC_BYTE_INC, NULL);
|
|
if (status != A_OK) {
|
|
AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Unable to read the BMI data from the device\n"));
|
|
return A_ERROR;
|
|
}
|
|
} else {
|
|
AR_DEBUG_PRINTF(ATH_DEBUG_BMI, ("BMI Communication timeout\n"));
|
|
return A_ERROR;
|
|
}
|
|
|
|
return status;
|
|
}
|