Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 548 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/ath6kl/bmi.c b/drivers/net/wireless/ath/ath6kl/bmi.c
new file mode 100644
index 000000000..af98e8711
--- /dev/null
+++ b/drivers/net/wireless/ath/ath6kl/bmi.c
@@ -0,0 +1,548 @@
+/*
+ * Copyright (c) 2004-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2012 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "core.h"
+#include "hif-ops.h"
+#include "target.h"
+#include "debug.h"
+
+int ath6kl_bmi_done(struct ath6kl *ar)
+{
+	int ret;
+	u32 cid = BMI_DONE;
+
+	if (ar->bmi.done_sent) {
+		ath6kl_dbg(ATH6KL_DBG_BMI, "bmi done skipped\n");
+		return 0;
+	}
+
+	ar->bmi.done_sent = true;
+
+	ret = ath6kl_hif_bmi_write(ar, (u8 *)&cid, sizeof(cid));
+	if (ret) {
+		ath6kl_err("Unable to send bmi done: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+int ath6kl_bmi_get_target_info(struct ath6kl *ar,
+			       struct ath6kl_bmi_target_info *targ_info)
+{
+	int ret;
+	u32 cid = BMI_GET_TARGET_INFO;
+
+	if (ar->bmi.done_sent) {
+		ath6kl_err("bmi done sent already, cmd %d disallowed\n", cid);
+		return -EACCES;
+	}
+
+	ret = ath6kl_hif_bmi_write(ar, (u8 *)&cid, sizeof(cid));
+	if (ret) {
+		ath6kl_err("Unable to send get target info: %d\n", ret);
+		return ret;
+	}
+
+	if (ar->hif_type == ATH6KL_HIF_TYPE_USB) {
+		ret = ath6kl_hif_bmi_read(ar, (u8 *)targ_info,
+					  sizeof(*targ_info));
+	} else {
+		ret = ath6kl_hif_bmi_read(ar, (u8 *)&targ_info->version,
+				sizeof(targ_info->version));
+	}
+
+	if (ret) {
+		ath6kl_err("Unable to recv target info: %d\n", ret);
+		return ret;
+	}
+
+	if (le32_to_cpu(targ_info->version) == TARGET_VERSION_SENTINAL) {
+		/* Determine how many bytes are in the Target's targ_info */
+		ret = ath6kl_hif_bmi_read(ar,
+				   (u8 *)&targ_info->byte_count,
+				   sizeof(targ_info->byte_count));
+		if (ret) {
+			ath6kl_err("unable to read target info byte count: %d\n",
+				   ret);
+			return ret;
+		}
+
+		/*
+		 * The target's targ_info doesn't match the host's targ_info.
+		 * We need to do some backwards compatibility to make this work.
+		 */
+		if (le32_to_cpu(targ_info->byte_count) != sizeof(*targ_info)) {
+			WARN_ON(1);
+			return -EINVAL;
+		}
+
+		/* Read the remainder of the targ_info */
+		ret = ath6kl_hif_bmi_read(ar,
+				   ((u8 *)targ_info) +
+				   sizeof(targ_info->byte_count),
+				   sizeof(*targ_info) -
+				   sizeof(targ_info->byte_count));
+
+		if (ret) {
+			ath6kl_err("Unable to read target info (%d bytes): %d\n",
+				   targ_info->byte_count, ret);
+			return ret;
+		}
+	}
+
+	ath6kl_dbg(ATH6KL_DBG_BMI, "target info (ver: 0x%x type: 0x%x)\n",
+		   targ_info->version, targ_info->type);
+
+	return 0;
+}
+
+int ath6kl_bmi_read(struct ath6kl *ar, u32 addr, u8 *buf, u32 len)
+{
+	u32 cid = BMI_READ_MEMORY;
+	int ret;
+	u32 offset;
+	u32 len_remain, rx_len;
+	u16 size;
+
+	if (ar->bmi.done_sent) {
+		ath6kl_err("bmi done sent already, cmd %d disallowed\n", cid);
+		return -EACCES;
+	}
+
+	size = ar->bmi.max_data_size + sizeof(cid) + sizeof(addr) + sizeof(len);
+	if (size > ar->bmi.max_cmd_size) {
+		WARN_ON(1);
+		return -EINVAL;
+	}
+	memset(ar->bmi.cmd_buf, 0, size);
+
+	ath6kl_dbg(ATH6KL_DBG_BMI,
+		   "bmi read memory: device: addr: 0x%x, len: %d\n",
+		   addr, len);
+
+	len_remain = len;
+
+	while (len_remain) {
+		rx_len = (len_remain < ar->bmi.max_data_size) ?
+					len_remain : ar->bmi.max_data_size;
+		offset = 0;
+		memcpy(&(ar->bmi.cmd_buf[offset]), &cid, sizeof(cid));
+		offset += sizeof(cid);
+		memcpy(&(ar->bmi.cmd_buf[offset]), &addr, sizeof(addr));
+		offset += sizeof(addr);
+		memcpy(&(ar->bmi.cmd_buf[offset]), &rx_len, sizeof(rx_len));
+		offset += sizeof(len);
+
+		ret = ath6kl_hif_bmi_write(ar, ar->bmi.cmd_buf, offset);
+		if (ret) {
+			ath6kl_err("Unable to write to the device: %d\n",
+				   ret);
+			return ret;
+		}
+		ret = ath6kl_hif_bmi_read(ar, ar->bmi.cmd_buf, rx_len);
+		if (ret) {
+			ath6kl_err("Unable to read from the device: %d\n",
+				   ret);
+			return ret;
+		}
+		memcpy(&buf[len - len_remain], ar->bmi.cmd_buf, rx_len);
+		len_remain -= rx_len; addr += rx_len;
+	}
+
+	return 0;
+}
+
+int ath6kl_bmi_write(struct ath6kl *ar, u32 addr, u8 *buf, u32 len)
+{
+	u32 cid = BMI_WRITE_MEMORY;
+	int ret;
+	u32 offset;
+	u32 len_remain, tx_len;
+	const u32 header = sizeof(cid) + sizeof(addr) + sizeof(len);
+	u8 aligned_buf[400];
+	u8 *src;
+
+	if (ar->bmi.done_sent) {
+		ath6kl_err("bmi done sent already, cmd %d disallowed\n", cid);
+		return -EACCES;
+	}
+
+	if ((ar->bmi.max_data_size + header) > ar->bmi.max_cmd_size) {
+		WARN_ON(1);
+		return -EINVAL;
+	}
+
+	if (WARN_ON(ar->bmi.max_data_size > sizeof(aligned_buf)))
+		return -E2BIG;
+
+	memset(ar->bmi.cmd_buf, 0, ar->bmi.max_data_size + header);
+
+	ath6kl_dbg(ATH6KL_DBG_BMI,
+		   "bmi write memory: addr: 0x%x, len: %d\n", addr, len);
+
+	len_remain = len;
+	while (len_remain) {
+		src = &buf[len - len_remain];
+
+		if (len_remain < (ar->bmi.max_data_size - header)) {
+			if (len_remain & 3) {
+				/* align it with 4 bytes */
+				len_remain = len_remain +
+					     (4 - (len_remain & 3));
+				memcpy(aligned_buf, src, len_remain);
+				src = aligned_buf;
+			}
+			tx_len = len_remain;
+		} else {
+			tx_len = (ar->bmi.max_data_size - header);
+		}
+
+		offset = 0;
+		memcpy(&(ar->bmi.cmd_buf[offset]), &cid, sizeof(cid));
+		offset += sizeof(cid);
+		memcpy(&(ar->bmi.cmd_buf[offset]), &addr, sizeof(addr));
+		offset += sizeof(addr);
+		memcpy(&(ar->bmi.cmd_buf[offset]), &tx_len, sizeof(tx_len));
+		offset += sizeof(tx_len);
+		memcpy(&(ar->bmi.cmd_buf[offset]), src, tx_len);
+		offset += tx_len;
+
+		ret = ath6kl_hif_bmi_write(ar, ar->bmi.cmd_buf, offset);
+		if (ret) {
+			ath6kl_err("Unable to write to the device: %d\n",
+				   ret);
+			return ret;
+		}
+		len_remain -= tx_len; addr += tx_len;
+	}
+
+	return 0;
+}
+
+int ath6kl_bmi_execute(struct ath6kl *ar, u32 addr, u32 *param)
+{
+	u32 cid = BMI_EXECUTE;
+	int ret;
+	u32 offset;
+	u16 size;
+
+	if (ar->bmi.done_sent) {
+		ath6kl_err("bmi done sent already, cmd %d disallowed\n", cid);
+		return -EACCES;
+	}
+
+	size = sizeof(cid) + sizeof(addr) + sizeof(*param);
+	if (size > ar->bmi.max_cmd_size) {
+		WARN_ON(1);
+		return -EINVAL;
+	}
+	memset(ar->bmi.cmd_buf, 0, size);
+
+	ath6kl_dbg(ATH6KL_DBG_BMI, "bmi execute: addr: 0x%x, param: %d)\n",
+		   addr, *param);
+
+	offset = 0;
+	memcpy(&(ar->bmi.cmd_buf[offset]), &cid, sizeof(cid));
+	offset += sizeof(cid);
+	memcpy(&(ar->bmi.cmd_buf[offset]), &addr, sizeof(addr));
+	offset += sizeof(addr);
+	memcpy(&(ar->bmi.cmd_buf[offset]), param, sizeof(*param));
+	offset += sizeof(*param);
+
+	ret = ath6kl_hif_bmi_write(ar, ar->bmi.cmd_buf, offset);
+	if (ret) {
+		ath6kl_err("Unable to write to the device: %d\n", ret);
+		return ret;
+	}
+
+	ret = ath6kl_hif_bmi_read(ar, ar->bmi.cmd_buf, sizeof(*param));
+	if (ret) {
+		ath6kl_err("Unable to read from the device: %d\n", ret);
+		return ret;
+	}
+
+	memcpy(param, ar->bmi.cmd_buf, sizeof(*param));
+
+	return 0;
+}
+
+int ath6kl_bmi_set_app_start(struct ath6kl *ar, u32 addr)
+{
+	u32 cid = BMI_SET_APP_START;
+	int ret;
+	u32 offset;
+	u16 size;
+
+	if (ar->bmi.done_sent) {
+		ath6kl_err("bmi done sent already, cmd %d disallowed\n", cid);
+		return -EACCES;
+	}
+
+	size = sizeof(cid) + sizeof(addr);
+	if (size > ar->bmi.max_cmd_size) {
+		WARN_ON(1);
+		return -EINVAL;
+	}
+	memset(ar->bmi.cmd_buf, 0, size);
+
+	ath6kl_dbg(ATH6KL_DBG_BMI, "bmi set app start: addr: 0x%x\n", addr);
+
+	offset = 0;
+	memcpy(&(ar->bmi.cmd_buf[offset]), &cid, sizeof(cid));
+	offset += sizeof(cid);
+	memcpy(&(ar->bmi.cmd_buf[offset]), &addr, sizeof(addr));
+	offset += sizeof(addr);
+
+	ret = ath6kl_hif_bmi_write(ar, ar->bmi.cmd_buf, offset);
+	if (ret) {
+		ath6kl_err("Unable to write to the device: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+int ath6kl_bmi_reg_read(struct ath6kl *ar, u32 addr, u32 *param)
+{
+	u32 cid = BMI_READ_SOC_REGISTER;
+	int ret;
+	u32 offset;
+	u16 size;
+
+	if (ar->bmi.done_sent) {
+		ath6kl_err("bmi done sent already, cmd %d disallowed\n", cid);
+		return -EACCES;
+	}
+
+	size = sizeof(cid) + sizeof(addr);
+	if (size > ar->bmi.max_cmd_size) {
+		WARN_ON(1);
+		return -EINVAL;
+	}
+	memset(ar->bmi.cmd_buf, 0, size);
+
+	ath6kl_dbg(ATH6KL_DBG_BMI, "bmi read SOC reg: addr: 0x%x\n", addr);
+
+	offset = 0;
+	memcpy(&(ar->bmi.cmd_buf[offset]), &cid, sizeof(cid));
+	offset += sizeof(cid);
+	memcpy(&(ar->bmi.cmd_buf[offset]), &addr, sizeof(addr));
+	offset += sizeof(addr);
+
+	ret = ath6kl_hif_bmi_write(ar, ar->bmi.cmd_buf, offset);
+	if (ret) {
+		ath6kl_err("Unable to write to the device: %d\n", ret);
+		return ret;
+	}
+
+	ret = ath6kl_hif_bmi_read(ar, ar->bmi.cmd_buf, sizeof(*param));
+	if (ret) {
+		ath6kl_err("Unable to read from the device: %d\n", ret);
+		return ret;
+	}
+	memcpy(param, ar->bmi.cmd_buf, sizeof(*param));
+
+	return 0;
+}
+
+int ath6kl_bmi_reg_write(struct ath6kl *ar, u32 addr, u32 param)
+{
+	u32 cid = BMI_WRITE_SOC_REGISTER;
+	int ret;
+	u32 offset;
+	u16 size;
+
+	if (ar->bmi.done_sent) {
+		ath6kl_err("bmi done sent already, cmd %d disallowed\n", cid);
+		return -EACCES;
+	}
+
+	size = sizeof(cid) + sizeof(addr) + sizeof(param);
+	if (size > ar->bmi.max_cmd_size) {
+		WARN_ON(1);
+		return -EINVAL;
+	}
+	memset(ar->bmi.cmd_buf, 0, size);
+
+	ath6kl_dbg(ATH6KL_DBG_BMI,
+		   "bmi write SOC reg: addr: 0x%x, param: %d\n",
+		    addr, param);
+
+	offset = 0;
+	memcpy(&(ar->bmi.cmd_buf[offset]), &cid, sizeof(cid));
+	offset += sizeof(cid);
+	memcpy(&(ar->bmi.cmd_buf[offset]), &addr, sizeof(addr));
+	offset += sizeof(addr);
+	memcpy(&(ar->bmi.cmd_buf[offset]), &param, sizeof(param));
+	offset += sizeof(param);
+
+	ret = ath6kl_hif_bmi_write(ar, ar->bmi.cmd_buf, offset);
+	if (ret) {
+		ath6kl_err("Unable to write to the device: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+int ath6kl_bmi_lz_data(struct ath6kl *ar, u8 *buf, u32 len)
+{
+	u32 cid = BMI_LZ_DATA;
+	int ret;
+	u32 offset;
+	u32 len_remain, tx_len;
+	const u32 header = sizeof(cid) + sizeof(len);
+	u16 size;
+
+	if (ar->bmi.done_sent) {
+		ath6kl_err("bmi done sent already, cmd %d disallowed\n", cid);
+		return -EACCES;
+	}
+
+	size = ar->bmi.max_data_size + header;
+	if (size > ar->bmi.max_cmd_size) {
+		WARN_ON(1);
+		return -EINVAL;
+	}
+	memset(ar->bmi.cmd_buf, 0, size);
+
+	ath6kl_dbg(ATH6KL_DBG_BMI, "bmi send LZ data: len: %d)\n",
+		   len);
+
+	len_remain = len;
+	while (len_remain) {
+		tx_len = (len_remain < (ar->bmi.max_data_size - header)) ?
+			  len_remain : (ar->bmi.max_data_size - header);
+
+		offset = 0;
+		memcpy(&(ar->bmi.cmd_buf[offset]), &cid, sizeof(cid));
+		offset += sizeof(cid);
+		memcpy(&(ar->bmi.cmd_buf[offset]), &tx_len, sizeof(tx_len));
+		offset += sizeof(tx_len);
+		memcpy(&(ar->bmi.cmd_buf[offset]), &buf[len - len_remain],
+		       tx_len);
+		offset += tx_len;
+
+		ret = ath6kl_hif_bmi_write(ar, ar->bmi.cmd_buf, offset);
+		if (ret) {
+			ath6kl_err("Unable to write to the device: %d\n",
+				   ret);
+			return ret;
+		}
+
+		len_remain -= tx_len;
+	}
+
+	return 0;
+}
+
+int ath6kl_bmi_lz_stream_start(struct ath6kl *ar, u32 addr)
+{
+	u32 cid = BMI_LZ_STREAM_START;
+	int ret;
+	u32 offset;
+	u16 size;
+
+	if (ar->bmi.done_sent) {
+		ath6kl_err("bmi done sent already, cmd %d disallowed\n", cid);
+		return -EACCES;
+	}
+
+	size = sizeof(cid) + sizeof(addr);
+	if (size > ar->bmi.max_cmd_size) {
+		WARN_ON(1);
+		return -EINVAL;
+	}
+	memset(ar->bmi.cmd_buf, 0, size);
+
+	ath6kl_dbg(ATH6KL_DBG_BMI,
+		   "bmi LZ stream start: addr: 0x%x)\n",
+		    addr);
+
+	offset = 0;
+	memcpy(&(ar->bmi.cmd_buf[offset]), &cid, sizeof(cid));
+	offset += sizeof(cid);
+	memcpy(&(ar->bmi.cmd_buf[offset]), &addr, sizeof(addr));
+	offset += sizeof(addr);
+
+	ret = ath6kl_hif_bmi_write(ar, ar->bmi.cmd_buf, offset);
+	if (ret) {
+		ath6kl_err("Unable to start LZ stream to the device: %d\n",
+			   ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+int ath6kl_bmi_fast_download(struct ath6kl *ar, u32 addr, u8 *buf, u32 len)
+{
+	int ret;
+	u32 last_word = 0;
+	u32 last_word_offset = len & ~0x3;
+	u32 unaligned_bytes = len & 0x3;
+
+	ret = ath6kl_bmi_lz_stream_start(ar, addr);
+	if (ret)
+		return ret;
+
+	if (unaligned_bytes) {
+		/* copy the last word into a zero padded buffer */
+		memcpy(&last_word, &buf[last_word_offset], unaligned_bytes);
+	}
+
+	ret = ath6kl_bmi_lz_data(ar, buf, last_word_offset);
+	if (ret)
+		return ret;
+
+	if (unaligned_bytes)
+		ret = ath6kl_bmi_lz_data(ar, (u8 *)&last_word, 4);
+
+	if (!ret) {
+		/* Close compressed stream and open a new (fake) one.
+		 * This serves mainly to flush Target caches. */
+		ret = ath6kl_bmi_lz_stream_start(ar, 0x00);
+	}
+	return ret;
+}
+
+void ath6kl_bmi_reset(struct ath6kl *ar)
+{
+	ar->bmi.done_sent = false;
+}
+
+int ath6kl_bmi_init(struct ath6kl *ar)
+{
+	if (WARN_ON(ar->bmi.max_data_size == 0))
+		return -EINVAL;
+
+	/* cmd + addr + len + data_size */
+	ar->bmi.max_cmd_size = ar->bmi.max_data_size + (sizeof(u32) * 3);
+
+	ar->bmi.cmd_buf = kzalloc(ar->bmi.max_cmd_size, GFP_KERNEL);
+	if (!ar->bmi.cmd_buf)
+		return -ENOMEM;
+
+	return 0;
+}
+
+void ath6kl_bmi_cleanup(struct ath6kl *ar)
+{
+	kfree(ar->bmi.cmd_buf);
+	ar->bmi.cmd_buf = NULL;
+}