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path: root/drivers/net/wireless/ath/ath6kl/bmi.c
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Diffstat (limited to 'drivers/net/wireless/ath/ath6kl/bmi.c')
-rw-r--r--drivers/net/wireless/ath/ath6kl/bmi.c548
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 0000000..bde5a10
--- /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;
+}
generated by cgit v1.2.3 (git 2.0.4) at 2024-04-25 17:45:20 +0000