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Diffstat (limited to 'target/linux/s3c24xx/files-2.6.30/drivers/ar6000/bmi')
-rw-r--r--target/linux/s3c24xx/files-2.6.30/drivers/ar6000/bmi/bmi.c657
-rw-r--r--target/linux/s3c24xx/files-2.6.30/drivers/ar6000/bmi/bmi_internal.h45
2 files changed, 702 insertions, 0 deletions
diff --git a/target/linux/s3c24xx/files-2.6.30/drivers/ar6000/bmi/bmi.c b/target/linux/s3c24xx/files-2.6.30/drivers/ar6000/bmi/bmi.c
new file mode 100644
index 000000000..d7b610c15
--- /dev/null
+++ b/target/linux/s3c24xx/files-2.6.30/drivers/ar6000/bmi/bmi.c
@@ -0,0 +1,657 @@
+/*
+ * 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 "hif.h"
+#include "bmi.h"
+#include "htc_api.h"
+#include "bmi_internal.h"
+
+/*
+Although we had envisioned BMI to run on top of HTC, this is not what the
+final implementation boiled down to on dragon. Its a part of BSP and does
+not use the HTC protocol either. On the host side, however, we were still
+living with the original idea. I think the time has come to accept the truth
+and separate it from HTC which has been carrying BMI's burden all this while.
+It shall make HTC state machine relatively simpler
+*/
+
+/* APIs visible to the driver */
+void
+BMIInit(void)
+{
+ bmiDone = FALSE;
+}
+
+A_STATUS
+BMIDone(HIF_DEVICE *device)
+{
+ A_STATUS status;
+ A_UINT32 cid;
+
+ if (bmiDone) {
+ AR_DEBUG_PRINTF (ATH_DEBUG_BMI, ("BMIDone skipped\n"));
+ return A_OK;
+ }
+
+ AR_DEBUG_PRINTF(ATH_DEBUG_BMI, ("BMI Done: Enter (device: 0x%p)\n", device));
+ bmiDone = TRUE;
+ cid = BMI_DONE;
+
+ status = bmiBufferSend(device, (A_UCHAR *)&cid, sizeof(cid));
+ 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 Done: Exit\n"));
+
+ return A_OK;
+}
+
+A_STATUS
+BMIGetTargetInfo(HIF_DEVICE *device, struct bmi_target_info *targ_info)
+{
+ A_STATUS status;
+ A_UINT32 cid;
+
+ if (bmiDone) {
+ AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Command disallowed\n"));
+ return A_ERROR;
+ }
+
+ AR_DEBUG_PRINTF(ATH_DEBUG_BMI, ("BMI Get Target Info: Enter (device: 0x%p)\n", device));
+ cid = BMI_GET_TARGET_INFO;
+
+ status = bmiBufferSend(device, (A_UCHAR *)&cid, sizeof(cid));
+ if (status != A_OK) {
+ AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Unable to write to the device\n"));
+ return A_ERROR;
+ }
+
+ status = bmiBufferReceive(device, (A_UCHAR *)&targ_info->target_ver,
+ sizeof(targ_info->target_ver));
+ if (status != A_OK) {
+ AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Unable to read Target Version from the device\n"));
+ return A_ERROR;
+ }
+
+ if (targ_info->target_ver == TARGET_VERSION_SENTINAL) {
+ /* Determine how many bytes are in the Target's targ_info */
+ status = bmiBufferReceive(device, (A_UCHAR *)&targ_info->target_info_byte_count,
+ sizeof(targ_info->target_info_byte_count));
+ if (status != A_OK) {
+ AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Unable to read Target Info Byte Count from the device\n"));
+ return A_ERROR;
+ }
+
+ /*
+ * The Target's targ_info doesn't match the Host's targ_info.
+ * We need to do some backwards compatibility work to make this OK.
+ */
+ A_ASSERT(targ_info->target_info_byte_count == sizeof(*targ_info));
+
+ /* Read the remainder of the targ_info */
+ status = bmiBufferReceive(device,
+ ((A_UCHAR *)targ_info)+sizeof(targ_info->target_info_byte_count),
+ sizeof(*targ_info)-sizeof(targ_info->target_info_byte_count));
+ if (status != A_OK) {
+ AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Unable to read Target Info (%d bytes) from the device\n",
+ targ_info->target_info_byte_count));
+ return A_ERROR;
+ }
+ } else {
+ /*
+ * Target must be an AR6001 whose firmware does not
+ * support BMI_GET_TARGET_INFO. Construct the data
+ * that it would have sent.
+ */
+ targ_info->target_info_byte_count = sizeof(targ_info);
+ targ_info->target_type = TARGET_TYPE_AR6001;
+ }
+
+ AR_DEBUG_PRINTF(ATH_DEBUG_BMI, ("BMI Get Target Info: Exit (ver: 0x%x type: 0x%x)\n",
+ targ_info->target_ver, targ_info->target_type));
+ printk("BMI Get Target Info: Exit (ver: 0x%x type: 0x%x)\n",
+ targ_info->target_ver, targ_info->target_type);
+
+ return A_OK;
+}
+
+A_STATUS
+BMIReadMemory(HIF_DEVICE *device,
+ A_UINT32 address,
+ A_UCHAR *buffer,
+ A_UINT32 length)
+{
+ A_UINT32 cid;
+ A_STATUS status;
+ A_UINT32 offset;
+ A_UINT32 remaining, rxlen;
+ static A_UCHAR data[BMI_DATASZ_MAX + sizeof(cid) + sizeof(address) + sizeof(length)];
+ memset (&data, 0, BMI_DATASZ_MAX + sizeof(cid) + sizeof(address) + sizeof(length));
+
+ if (bmiDone) {
+ AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Command disallowed\n"));
+ return A_ERROR;
+ }
+
+ AR_DEBUG_PRINTF(ATH_DEBUG_BMI,
+ ("BMI Read Memory: Enter (device: 0x%p, address: 0x%x, length: %d)\n",
+ device, address, length));
+
+ cid = BMI_READ_MEMORY;
+
+ remaining = length;
+
+ while (remaining)
+ {
+ rxlen = (remaining < BMI_DATASZ_MAX) ? remaining : BMI_DATASZ_MAX;
+ offset = 0;
+ A_MEMCPY(&data[offset], &cid, sizeof(cid));
+ offset += sizeof(cid);
+ A_MEMCPY(&data[offset], &address, sizeof(address));
+ offset += sizeof(address);
+ A_MEMCPY(&data[offset], &rxlen, sizeof(rxlen));
+ offset += sizeof(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;
+ }
+ status = bmiBufferReceive(device, data, rxlen);
+ if (status != A_OK) {
+ AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Unable to read from the device\n"));
+ return A_ERROR;
+ }
+ A_MEMCPY(&buffer[length - remaining], data, rxlen);
+ remaining -= rxlen; address += rxlen;
+ }
+
+ AR_DEBUG_PRINTF(ATH_DEBUG_BMI, ("BMI Read Memory: Exit\n"));
+ return A_OK;
+}
+
+A_STATUS
+BMIWriteMemory(HIF_DEVICE *device,
+ A_UINT32 address,
+ A_UCHAR *buffer,
+ A_UINT32 length)
+{
+ A_UINT32 cid;
+ A_STATUS status;
+ A_UINT32 offset;
+ A_UINT32 remaining, txlen;
+ const A_UINT32 header = sizeof(cid) + sizeof(address) + sizeof(length);
+ static A_UCHAR data[BMI_DATASZ_MAX + sizeof(cid) + sizeof(address) + sizeof(length)];
+ memset (&data, 0, header);
+
+ if (bmiDone) {
+ AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Command disallowed\n"));
+ return A_ERROR;
+ }
+
+ AR_DEBUG_PRINTF(ATH_DEBUG_BMI,
+ ("BMI Write Memory: Enter (device: 0x%p, address: 0x%x, length: %d)\n",
+ device, address, length));
+
+ cid = BMI_WRITE_MEMORY;
+
+ remaining = length;
+ while (remaining)
+ {
+ txlen = (remaining < (BMI_DATASZ_MAX - header)) ?
+ remaining : (BMI_DATASZ_MAX - header);
+ offset = 0;
+ A_MEMCPY(&data[offset], &cid, sizeof(cid));
+ offset += sizeof(cid);
+ A_MEMCPY(&data[offset], &address, sizeof(address));
+ offset += sizeof(address);
+ A_MEMCPY(&data[offset], &txlen, sizeof(txlen));
+ offset += sizeof(txlen);
+ A_MEMCPY(&data[offset], &buffer[length - remaining], txlen);
+ offset += txlen;
+ 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;
+ }
+ remaining -= txlen; address += txlen;
+ }
+
+ AR_DEBUG_PRINTF(ATH_DEBUG_BMI, ("BMI Write Memory: Exit\n"));
+
+ return A_OK;
+}
+
+A_STATUS
+BMIExecute(HIF_DEVICE *device,
+ A_UINT32 address,
+ A_UINT32 *param)
+{
+ A_UINT32 cid;
+ A_STATUS status;
+ A_UINT32 offset;
+ static A_UCHAR data[sizeof(cid) + sizeof(address) + sizeof(*param)];
+ memset (&data, 0, sizeof(cid) + sizeof(address) + sizeof(*param));
+
+ if (bmiDone) {
+ AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Command disallowed\n"));
+ return A_ERROR;
+ }
+
+ AR_DEBUG_PRINTF(ATH_DEBUG_BMI,
+ ("BMI Execute: Enter (device: 0x%p, address: 0x%x, param: %d)\n",
+ device, address, *param));
+
+ cid = BMI_EXECUTE;
+
+ offset = 0;
+ A_MEMCPY(&data[offset], &cid, sizeof(cid));
+ offset += sizeof(cid);
+ A_MEMCPY(&data[offset], &address, sizeof(address));
+ offset += sizeof(address);
+ A_MEMCPY(&data[offset], param, sizeof(*param));
+ offset += sizeof(*param);
+ 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;
+ }
+
+ status = bmiBufferReceive(device, data, sizeof(*param));
+ if (status != A_OK) {
+ AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Unable to read from the device\n"));
+ return A_ERROR;
+ }
+
+ A_MEMCPY(param, data, sizeof(*param));
+
+ AR_DEBUG_PRINTF(ATH_DEBUG_BMI, ("BMI Execute: Exit (param: %d)\n", *param));
+ return A_OK;
+}
+
+A_STATUS
+BMISetAppStart(HIF_DEVICE *device,
+ A_UINT32 address)
+{
+ A_UINT32 cid;
+ A_STATUS status;
+ A_UINT32 offset;
+ static A_UCHAR data[sizeof(cid) + sizeof(address)];
+ memset (&data, 0, sizeof(cid) + sizeof(address));
+
+ if (bmiDone) {
+ AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Command disallowed\n"));
+ return A_ERROR;
+ }
+
+ AR_DEBUG_PRINTF(ATH_DEBUG_BMI,
+ ("BMI Set App Start: Enter (device: 0x%p, address: 0x%x)\n",
+ device, address));
+
+ cid = BMI_SET_APP_START;
+
+ offset = 0;
+ A_MEMCPY(&data[offset], &cid, sizeof(cid));
+ offset += sizeof(cid);
+ A_MEMCPY(&data[offset], &address, sizeof(address));
+ offset += sizeof(address);
+ 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 Set App Start: Exit\n"));
+ return A_OK;
+}
+
+A_STATUS
+BMIReadSOCRegister(HIF_DEVICE *device,
+ A_UINT32 address,
+ A_UINT32 *param)
+{
+ A_UINT32 cid;
+ A_STATUS status;
+ A_UINT32 offset;
+ static A_UCHAR data[sizeof(cid) + sizeof(address)];
+ memset (&data, 0, sizeof(cid) + sizeof(address));
+
+ if (bmiDone) {
+ AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Command disallowed\n"));
+ return A_ERROR;
+ }
+
+ AR_DEBUG_PRINTF(ATH_DEBUG_BMI,
+ ("BMI Read SOC Register: Enter (device: 0x%p, address: 0x%x)\n",
+ device, address));
+
+ cid = BMI_READ_SOC_REGISTER;
+
+ offset = 0;
+ A_MEMCPY(&data[offset], &cid, sizeof(cid));
+ offset += sizeof(cid);
+ A_MEMCPY(&data[offset], &address, sizeof(address));
+ offset += sizeof(address);
+
+ 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;
+ }
+
+ status = bmiBufferReceive(device, data, sizeof(*param));
+ if (status != A_OK) {
+ AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Unable to read from the device\n"));
+ return A_ERROR;
+ }
+ A_MEMCPY(param, data, sizeof(*param));
+
+ AR_DEBUG_PRINTF(ATH_DEBUG_BMI, ("BMI Read SOC Register: Exit (value: %d)\n", *param));
+ return A_OK;
+}
+
+A_STATUS
+BMIWriteSOCRegister(HIF_DEVICE *device,
+ A_UINT32 address,
+ A_UINT32 param)
+{
+ A_UINT32 cid;
+ A_STATUS status;
+ A_UINT32 offset;
+ static A_UCHAR data[sizeof(cid) + sizeof(address) + sizeof(param)];
+
+ memset (&data, 0, sizeof(cid) + sizeof(address) + sizeof(param));
+
+ if (bmiDone) {
+ AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Command disallowed\n"));
+ return A_ERROR;
+ }
+
+ AR_DEBUG_PRINTF(ATH_DEBUG_BMI,
+ ("BMI Write SOC Register: Enter (device: 0x%p, address: 0x%x, param: %d)\n",
+ device, address, param));
+
+ cid = BMI_WRITE_SOC_REGISTER;
+
+ offset = 0;
+ A_MEMCPY(&data[offset], &cid, sizeof(cid));
+ offset += sizeof(cid);
+ A_MEMCPY(&data[offset], &address, sizeof(address));
+ offset += sizeof(address);
+ A_MEMCPY(&data[offset], &param, sizeof(param));
+ offset += sizeof(param);
+ 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 Read SOC Register: Exit\n"));
+ return A_OK;
+}
+
+A_STATUS
+BMIrompatchInstall(HIF_DEVICE *device,
+ A_UINT32 ROM_addr,
+ A_UINT32 RAM_addr,
+ A_UINT32 nbytes,
+ A_UINT32 do_activate,
+ A_UINT32 *rompatch_id)
+{
+ A_UINT32 cid;
+ A_STATUS status;
+ A_UINT32 offset;
+ static A_UCHAR data[sizeof(cid) + sizeof(ROM_addr) + sizeof(RAM_addr) +
+ sizeof(nbytes) + sizeof(do_activate)];
+
+ memset (&data, 0, sizeof(cid) + sizeof(ROM_addr) + sizeof(RAM_addr) +
+ sizeof(nbytes) + sizeof(do_activate));
+
+ if (bmiDone) {
+ AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Command disallowed\n"));
+ return A_ERROR;
+ }
+
+ AR_DEBUG_PRINTF(ATH_DEBUG_BMI,
+ ("BMI rompatch Install: Enter (device: 0x%p, ROMaddr: 0x%x, RAMaddr: 0x%x length: %d activate: %d)\n",
+ device, ROM_addr, RAM_addr, nbytes, do_activate));
+
+ cid = BMI_ROMPATCH_INSTALL;
+
+ offset = 0;
+ A_MEMCPY(&data[offset], &cid, sizeof(cid));
+ offset += sizeof(cid);
+ A_MEMCPY(&data[offset], &ROM_addr, sizeof(ROM_addr));
+ offset += sizeof(ROM_addr);
+ A_MEMCPY(&data[offset], &RAM_addr, sizeof(RAM_addr));
+ offset += sizeof(RAM_addr);
+ A_MEMCPY(&data[offset], &nbytes, sizeof(nbytes));
+ offset += sizeof(nbytes);
+ A_MEMCPY(&data[offset], &do_activate, sizeof(do_activate));
+ offset += sizeof(do_activate);
+ 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;
+ }
+
+ status = bmiBufferReceive(device, (A_UCHAR *)rompatch_id, sizeof(*rompatch_id));
+ if (status != A_OK) {
+ AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Unable to read from the device\n"));
+ return A_ERROR;
+ }
+
+ AR_DEBUG_PRINTF(ATH_DEBUG_BMI, ("BMI rompatch Install: (rompatch_id=%d)\n", *rompatch_id));
+ return A_OK;
+}
+
+A_STATUS
+BMIrompatchUninstall(HIF_DEVICE *device,
+ A_UINT32 rompatch_id)
+{
+ A_UINT32 cid;
+ A_STATUS status;
+ A_UINT32 offset;
+ static A_UCHAR data[sizeof(cid) + sizeof(rompatch_id)];
+ memset (&data, 0, sizeof(cid) + sizeof(rompatch_id));
+
+ if (bmiDone) {
+ AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Command disallowed\n"));
+ return A_ERROR;
+ }
+
+ AR_DEBUG_PRINTF(ATH_DEBUG_BMI,
+ ("BMI rompatch Uninstall: Enter (device: 0x%p, rompatch_id: %d)\n",
+ device, rompatch_id));
+
+ cid = BMI_ROMPATCH_UNINSTALL;
+
+ offset = 0;
+ A_MEMCPY(&data[offset], &cid, sizeof(cid));
+ 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;
+}
diff --git a/target/linux/s3c24xx/files-2.6.30/drivers/ar6000/bmi/bmi_internal.h b/target/linux/s3c24xx/files-2.6.30/drivers/ar6000/bmi/bmi_internal.h
new file mode 100644
index 000000000..1e213540c
--- /dev/null
+++ b/target/linux/s3c24xx/files-2.6.30/drivers/ar6000/bmi/bmi_internal.h
@@ -0,0 +1,45 @@
+#ifndef BMI_INTERNAL_H
+#define BMI_INTERNAL_H
+/*
+ *
+ * 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 "a_config.h"
+#include "athdefs.h"
+#include "a_types.h"
+#include "a_osapi.h"
+#include "a_debug.h"
+#include "AR6Khwreg.h"
+#include "bmi_msg.h"
+
+#define BMI_COMMUNICATION_TIMEOUT 100000
+
+/* ------ Global Variable Declarations ------- */
+A_BOOL bmiDone;
+
+A_STATUS
+bmiBufferSend(HIF_DEVICE *device,
+ A_UCHAR *buffer,
+ A_UINT32 length);
+
+A_STATUS
+bmiBufferReceive(HIF_DEVICE *device,
+ A_UCHAR *buffer,
+ A_UINT32 length);
+
+#endif