519 lines
12 KiB
C
519 lines
12 KiB
C
|
// SPDX-License-Identifier: ISC
|
||
|
/*
|
||
|
* Copyright (c) 2005-2011 Atheros Communications Inc.
|
||
|
* Copyright (c) 2011-2014,2016-2017 Qualcomm Atheros, Inc.
|
||
|
*/
|
||
|
|
||
|
#include "bmi.h"
|
||
|
#include "hif.h"
|
||
|
#include "debug.h"
|
||
|
#include "htc.h"
|
||
|
#include "hw.h"
|
||
|
|
||
|
void ath10k_bmi_start(struct ath10k *ar)
|
||
|
{
|
||
|
ath10k_dbg(ar, ATH10K_DBG_BMI, "bmi start\n");
|
||
|
|
||
|
ar->bmi.done_sent = false;
|
||
|
}
|
||
|
EXPORT_SYMBOL(ath10k_bmi_start);
|
||
|
|
||
|
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;
|
||
|
}
|
||
|
|
||
|
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;
|
||
|
}
|
||
|
|
||
|
#define TARGET_VERSION_SENTINAL 0xffffffffu
|
||
|
|
||
|
int ath10k_bmi_get_target_info_sdio(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, ver_len;
|
||
|
__le32 tmp;
|
||
|
int ret;
|
||
|
|
||
|
ath10k_dbg(ar, ATH10K_DBG_BMI, "bmi get target info SDIO\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);
|
||
|
|
||
|
/* Step 1: Read 4 bytes of the target info and check if it is
|
||
|
* the special sentinel version word or the first word in the
|
||
|
* version response.
|
||
|
*/
|
||
|
resplen = sizeof(u32);
|
||
|
ret = ath10k_hif_exchange_bmi_msg(ar, &cmd, cmdlen, &tmp, &resplen);
|
||
|
if (ret) {
|
||
|
ath10k_warn(ar, "unable to read from device\n");
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
/* Some SDIO boards have a special sentinel byte before the real
|
||
|
* version response.
|
||
|
*/
|
||
|
if (__le32_to_cpu(tmp) == TARGET_VERSION_SENTINAL) {
|
||
|
/* Step 1b: Read the version length */
|
||
|
resplen = sizeof(u32);
|
||
|
ret = ath10k_hif_exchange_bmi_msg(ar, NULL, 0, &tmp,
|
||
|
&resplen);
|
||
|
if (ret) {
|
||
|
ath10k_warn(ar, "unable to read from device\n");
|
||
|
return ret;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
ver_len = __le32_to_cpu(tmp);
|
||
|
|
||
|
/* Step 2: Check the target info length */
|
||
|
if (ver_len != sizeof(resp.get_target_info)) {
|
||
|
ath10k_warn(ar, "Unexpected target info len: %u. Expected: %zu\n",
|
||
|
ver_len, sizeof(resp.get_target_info));
|
||
|
return -EINVAL;
|
||
|
}
|
||
|
|
||
|
/* Step 3: Read the rest of the version response */
|
||
|
resplen = sizeof(resp.get_target_info) - sizeof(u32);
|
||
|
ret = ath10k_hif_exchange_bmi_msg(ar, NULL, 0,
|
||
|
&resp.get_target_info.version,
|
||
|
&resplen);
|
||
|
if (ret) {
|
||
|
ath10k_warn(ar, "unable to read from device\n");
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
target_info->version = __le32_to_cpu(resp.get_target_info.version);
|
||
|
target_info->type = __le32_to_cpu(resp.get_target_info.type);
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
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;
|
||
|
}
|
||
|
EXPORT_SYMBOL(ath10k_bmi_read_memory);
|
||
|
|
||
|
int ath10k_bmi_write_soc_reg(struct ath10k *ar, u32 address, u32 reg_val)
|
||
|
{
|
||
|
struct bmi_cmd cmd;
|
||
|
u32 cmdlen = sizeof(cmd.id) + sizeof(cmd.write_soc_reg);
|
||
|
int ret;
|
||
|
|
||
|
ath10k_dbg(ar, ATH10K_DBG_BMI,
|
||
|
"bmi write soc register 0x%08x val 0x%08x\n",
|
||
|
address, reg_val);
|
||
|
|
||
|
if (ar->bmi.done_sent) {
|
||
|
ath10k_warn(ar, "bmi write soc register command in progress\n");
|
||
|
return -EBUSY;
|
||
|
}
|
||
|
|
||
|
cmd.id = __cpu_to_le32(BMI_WRITE_SOC_REGISTER);
|
||
|
cmd.write_soc_reg.addr = __cpu_to_le32(address);
|
||
|
cmd.write_soc_reg.value = __cpu_to_le32(reg_val);
|
||
|
|
||
|
ret = ath10k_hif_exchange_bmi_msg(ar, &cmd, cmdlen, NULL, NULL);
|
||
|
if (ret) {
|
||
|
ath10k_warn(ar, "Unable to write soc register to device: %d\n",
|
||
|
ret);
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
int ath10k_bmi_read_soc_reg(struct ath10k *ar, u32 address, u32 *reg_val)
|
||
|
{
|
||
|
struct bmi_cmd cmd;
|
||
|
union bmi_resp resp;
|
||
|
u32 cmdlen = sizeof(cmd.id) + sizeof(cmd.read_soc_reg);
|
||
|
u32 resplen = sizeof(resp.read_soc_reg);
|
||
|
int ret;
|
||
|
|
||
|
ath10k_dbg(ar, ATH10K_DBG_BMI, "bmi read soc register 0x%08x\n",
|
||
|
address);
|
||
|
|
||
|
if (ar->bmi.done_sent) {
|
||
|
ath10k_warn(ar, "bmi read soc register command in progress\n");
|
||
|
return -EBUSY;
|
||
|
}
|
||
|
|
||
|
cmd.id = __cpu_to_le32(BMI_READ_SOC_REGISTER);
|
||
|
cmd.read_soc_reg.addr = __cpu_to_le32(address);
|
||
|
|
||
|
ret = ath10k_hif_exchange_bmi_msg(ar, &cmd, cmdlen, &resp, &resplen);
|
||
|
if (ret) {
|
||
|
ath10k_warn(ar, "Unable to read soc register from device: %d\n",
|
||
|
ret);
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
*reg_val = __le32_to_cpu(resp.read_soc_reg.value);
|
||
|
|
||
|
ath10k_dbg(ar, ATH10K_DBG_BMI, "bmi read soc register value 0x%08x\n",
|
||
|
*reg_val);
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
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;
|
||
|
}
|
||
|
|
||
|
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;
|
||
|
}
|
||
|
|
||
|
static int ath10k_bmi_lz_data_large(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;
|
||
|
size_t buf_len;
|
||
|
|
||
|
ath10k_dbg(ar, ATH10K_DBG_BMI, "large bmi lz data buffer 0x%pK length %d\n",
|
||
|
buffer, length);
|
||
|
|
||
|
if (ar->bmi.done_sent) {
|
||
|
ath10k_warn(ar, "command disallowed\n");
|
||
|
return -EBUSY;
|
||
|
}
|
||
|
|
||
|
buf_len = sizeof(*cmd) + BMI_MAX_LARGE_DATA_SIZE - BMI_MAX_DATA_SIZE;
|
||
|
cmd = kzalloc(buf_len, GFP_KERNEL);
|
||
|
if (!cmd)
|
||
|
return -ENOMEM;
|
||
|
|
||
|
while (length) {
|
||
|
txlen = min(length, BMI_MAX_LARGE_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");
|
||
|
kfree(cmd);
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
buffer += txlen;
|
||
|
length -= txlen;
|
||
|
}
|
||
|
|
||
|
kfree(cmd);
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
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;
|
||
|
}
|
||
|
|
||
|
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;
|
||
|
}
|
||
|
|
||
|
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);
|
||
|
|
||
|
if (ar->hw_params.bmi_large_size_download)
|
||
|
ret = ath10k_bmi_lz_data_large(ar, buffer, head_len);
|
||
|
else
|
||
|
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;
|
||
|
}
|
||
|
|
||
|
int ath10k_bmi_set_start(struct ath10k *ar, u32 address)
|
||
|
{
|
||
|
struct bmi_cmd cmd;
|
||
|
u32 cmdlen = sizeof(cmd.id) + sizeof(cmd.set_app_start);
|
||
|
int ret;
|
||
|
|
||
|
if (ar->bmi.done_sent) {
|
||
|
ath10k_warn(ar, "bmi set start command disallowed\n");
|
||
|
return -EBUSY;
|
||
|
}
|
||
|
|
||
|
cmd.id = __cpu_to_le32(BMI_SET_APP_START);
|
||
|
cmd.set_app_start.addr = __cpu_to_le32(address);
|
||
|
|
||
|
ret = ath10k_hif_exchange_bmi_msg(ar, &cmd, cmdlen, NULL, NULL);
|
||
|
if (ret) {
|
||
|
ath10k_warn(ar, "unable to set start to the device:%d\n", ret);
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
return 0;
|
||
|
}
|