Release 4.11 drivers/net/wireless/ath/ath10k/bmi.c
/*
* Copyright (c) 2005-2011 Atheros Communications Inc.
* Copyright (c) 2011-2013 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 "bmi.h"
#include "hif.h"
#include "debug.h"
#include "htc.h"
void ath10k_bmi_start(struct ath10k *ar)
{
ath10k_dbg(ar, ATH10K_DBG_BMI, "bmi start\n");
ar->bmi.done_sent = false;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Michal Kazior | 25 | 92.59% | 2 | 66.67% |
Kalle Valo | 2 | 7.41% | 1 | 33.33% |
Total | 27 | 100.00% | 3 | 100.00% |
int ath10k_bmi_done(struct ath10k *ar)
{
struct bmi_cmd cmd;
u32 cmdlen = sizeof(cmd.id) + sizeof(cmd.done);
int ret;
ath10k_dbg(ar, ATH10K_DBG_BMI, "bmi done\n");
if (ar->bmi.done_sent) {
ath10k_dbg(ar, ATH10K_DBG_BMI, "bmi skipped\n");
return 0;
}
ar->bmi.done_sent = true;
cmd.id = __cpu_to_le32(BMI_DONE);
ret = ath10k_hif_exchange_bmi_msg(ar, &cmd, cmdlen, NULL, NULL);
if (ret) {
ath10k_warn(ar, "unable to write to the device: %d\n", ret);
return ret;
}
return 0;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Kalle Valo | 113 | 94.96% | 2 | 66.67% |
Michal Kazior | 6 | 5.04% | 1 | 33.33% |
Total | 119 | 100.00% | 3 | 100.00% |
int ath10k_bmi_get_target_info(struct ath10k *ar,
struct bmi_target_info *target_info)
{
struct bmi_cmd cmd;
union bmi_resp resp;
u32 cmdlen = sizeof(cmd.id) + sizeof(cmd.get_target_info);
u32 resplen = sizeof(resp.get_target_info);
int ret;
ath10k_dbg(ar, ATH10K_DBG_BMI, "bmi get target info\n");
if (ar->bmi.done_sent) {
ath10k_warn(ar, "BMI Get Target Info Command disallowed\n");
return -EBUSY;
}
cmd.id = __cpu_to_le32(BMI_GET_TARGET_INFO);
ret = ath10k_hif_exchange_bmi_msg(ar, &cmd, cmdlen, &resp, &resplen);
if (ret) {
ath10k_warn(ar, "unable to get target info from device\n");
return ret;
}
if (resplen < sizeof(resp.get_target_info)) {
ath10k_warn(ar, "invalid get_target_info response length (%d)\n",
resplen);
return -EIO;
}
target_info->version = __le32_to_cpu(resp.get_target_info.version);
target_info->type = __le32_to_cpu(resp.get_target_info.type);
return 0;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Kalle Valo | 173 | 95.58% | 2 | 66.67% |
Michal Kazior | 8 | 4.42% | 1 | 33.33% |
Total | 181 | 100.00% | 3 | 100.00% |
int ath10k_bmi_read_memory(struct ath10k *ar,
u32 address, void *buffer, u32 length)
{
struct bmi_cmd cmd;
union bmi_resp resp;
u32 cmdlen = sizeof(cmd.id) + sizeof(cmd.read_mem);
u32 rxlen;
int ret;
ath10k_dbg(ar, ATH10K_DBG_BMI, "bmi read address 0x%x length %d\n",
address, length);
if (ar->bmi.done_sent) {
ath10k_warn(ar, "command disallowed\n");
return -EBUSY;
}
while (length) {
rxlen = min_t(u32, length, BMI_MAX_DATA_SIZE);
cmd.id = __cpu_to_le32(BMI_READ_MEMORY);
cmd.read_mem.addr = __cpu_to_le32(address);
cmd.read_mem.len = __cpu_to_le32(rxlen);
ret = ath10k_hif_exchange_bmi_msg(ar, &cmd, cmdlen,
&resp, &rxlen);
if (ret) {
ath10k_warn(ar, "unable to read from the device (%d)\n",
ret);
return ret;
}
memcpy(buffer, resp.read_mem.payload, rxlen);
address += rxlen;
buffer += rxlen;
length -= rxlen;
}
return 0;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Kalle Valo | 188 | 95.43% | 2 | 50.00% |
Michal Kazior | 9 | 4.57% | 2 | 50.00% |
Total | 197 | 100.00% | 4 | 100.00% |
int ath10k_bmi_write_memory(struct ath10k *ar,
u32 address, const void *buffer, u32 length)
{
struct bmi_cmd cmd;
u32 hdrlen = sizeof(cmd.id) + sizeof(cmd.write_mem);
u32 txlen;
int ret;
ath10k_dbg(ar, ATH10K_DBG_BMI, "bmi write address 0x%x length %d\n",
address, length);
if (ar->bmi.done_sent) {
ath10k_warn(ar, "command disallowed\n");
return -EBUSY;
}
while (length) {
txlen = min(length, BMI_MAX_DATA_SIZE - hdrlen);
/* copy before roundup to avoid reading beyond buffer*/
memcpy(cmd.write_mem.payload, buffer, txlen);
txlen = roundup(txlen, 4);
cmd.id = __cpu_to_le32(BMI_WRITE_MEMORY);
cmd.write_mem.addr = __cpu_to_le32(address);
cmd.write_mem.len = __cpu_to_le32(txlen);
ret = ath10k_hif_exchange_bmi_msg(ar, &cmd, hdrlen + txlen,
NULL, NULL);
if (ret) {
ath10k_warn(ar, "unable to write to the device (%d)\n",
ret);
return ret;
}
/* fixup roundup() so `length` zeroes out for last chunk */
txlen = min(txlen, length);
address += txlen;
buffer += txlen;
length -= txlen;
}
return 0;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Kalle Valo | 205 | 95.79% | 2 | 50.00% |
Michal Kazior | 9 | 4.21% | 2 | 50.00% |
Total | 214 | 100.00% | 4 | 100.00% |
int ath10k_bmi_execute(struct ath10k *ar, u32 address, u32 param, u32 *result)
{
struct bmi_cmd cmd;
union bmi_resp resp;
u32 cmdlen = sizeof(cmd.id) + sizeof(cmd.execute);
u32 resplen = sizeof(resp.execute);
int ret;
ath10k_dbg(ar, ATH10K_DBG_BMI, "bmi execute address 0x%x param 0x%x\n",
address, param);
if (ar->bmi.done_sent) {
ath10k_warn(ar, "command disallowed\n");
return -EBUSY;
}
cmd.id = __cpu_to_le32(BMI_EXECUTE);
cmd.execute.addr = __cpu_to_le32(address);
cmd.execute.param = __cpu_to_le32(param);
ret = ath10k_hif_exchange_bmi_msg(ar, &cmd, cmdlen, &resp, &resplen);
if (ret) {
ath10k_warn(ar, "unable to read from the device\n");
return ret;
}
if (resplen < sizeof(resp.execute)) {
ath10k_warn(ar, "invalid execute response length (%d)\n",
resplen);
return -EIO;
}
*result = __le32_to_cpu(resp.execute.result);
ath10k_dbg(ar, ATH10K_DBG_BMI, "bmi execute result 0x%x\n", *result);
return 0;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Kalle Valo | 200 | 95.24% | 3 | 75.00% |
Michal Kazior | 10 | 4.76% | 1 | 25.00% |
Total | 210 | 100.00% | 4 | 100.00% |
int ath10k_bmi_lz_data(struct ath10k *ar, const void *buffer, u32 length)
{
struct bmi_cmd cmd;
u32 hdrlen = sizeof(cmd.id) + sizeof(cmd.lz_data);
u32 txlen;
int ret;
ath10k_dbg(ar, ATH10K_DBG_BMI, "bmi lz data buffer 0x%pK length %d\n",
buffer, length);
if (ar->bmi.done_sent) {
ath10k_warn(ar, "command disallowed\n");
return -EBUSY;
}
while (length) {
txlen = min(length, BMI_MAX_DATA_SIZE - hdrlen);
WARN_ON_ONCE(txlen & 3);
cmd.id = __cpu_to_le32(BMI_LZ_DATA);
cmd.lz_data.len = __cpu_to_le32(txlen);
memcpy(cmd.lz_data.payload, buffer, txlen);
ret = ath10k_hif_exchange_bmi_msg(ar, &cmd, hdrlen + txlen,
NULL, NULL);
if (ret) {
ath10k_warn(ar, "unable to write to the device\n");
return ret;
}
buffer += txlen;
length -= txlen;
}
return 0;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Kalle Valo | 174 | 96.13% | 2 | 50.00% |
Michal Kazior | 6 | 3.31% | 1 | 25.00% |
Maharaja Kennadyrajan | 1 | 0.55% | 1 | 25.00% |
Total | 181 | 100.00% | 4 | 100.00% |
int ath10k_bmi_lz_stream_start(struct ath10k *ar, u32 address)
{
struct bmi_cmd cmd;
u32 cmdlen = sizeof(cmd.id) + sizeof(cmd.lz_start);
int ret;
ath10k_dbg(ar, ATH10K_DBG_BMI, "bmi lz stream start address 0x%x\n",
address);
if (ar->bmi.done_sent) {
ath10k_warn(ar, "command disallowed\n");
return -EBUSY;
}
cmd.id = __cpu_to_le32(BMI_LZ_STREAM_START);
cmd.lz_start.addr = __cpu_to_le32(address);
ret = ath10k_hif_exchange_bmi_msg(ar, &cmd, cmdlen, NULL, NULL);
if (ret) {
ath10k_warn(ar, "unable to Start LZ Stream to the device\n");
return ret;
}
return 0;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Kalle Valo | 118 | 95.16% | 2 | 66.67% |
Michal Kazior | 6 | 4.84% | 1 | 33.33% |
Total | 124 | 100.00% | 3 | 100.00% |
int ath10k_bmi_fast_download(struct ath10k *ar,
u32 address, const void *buffer, u32 length)
{
u8 trailer[4] = {};
u32 head_len = rounddown(length, 4);
u32 trailer_len = length - head_len;
int ret;
ath10k_dbg(ar, ATH10K_DBG_BMI,
"bmi fast download address 0x%x buffer 0x%pK length %d\n",
address, buffer, length);
ret = ath10k_bmi_lz_stream_start(ar, address);
if (ret)
return ret;
/* copy the last word into a zero padded buffer */
if (trailer_len > 0)
memcpy(trailer, buffer + head_len, trailer_len);
ret = ath10k_bmi_lz_data(ar, buffer, head_len);
if (ret)
return ret;
if (trailer_len > 0)
ret = ath10k_bmi_lz_data(ar, trailer, 4);
if (ret != 0)
return ret;
/*
* Close compressed stream and open a new (fake) one.
* This serves mainly to flush Target caches.
*/
ret = ath10k_bmi_lz_stream_start(ar, 0x00);
return ret;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Kalle Valo | 152 | 98.06% | 2 | 50.00% |
Michal Kazior | 2 | 1.29% | 1 | 25.00% |
Maharaja Kennadyrajan | 1 | 0.65% | 1 | 25.00% |
Total | 155 | 100.00% | 4 | 100.00% |
Overall Contributors
Person | Tokens | Prop | Commits | CommitProp |
Kalle Valo | 1338 | 94.16% | 3 | 42.86% |
Michal Kazior | 81 | 5.70% | 3 | 42.86% |
Maharaja Kennadyrajan | 2 | 0.14% | 1 | 14.29% |
Total | 1421 | 100.00% | 7 | 100.00% |
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