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android-kvm / linux / d5c1d8c567781932e3ab2c62e8fcfee0283d9580 / . / drivers / net / wireless / ath / ath10k / core.c
blob: c0e454bb6a8df646b9266afbffa76ed179dff0fc [file] [log] [blame]
/*
* 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 <linux/module.h>
#include <linux/firmware.h>
#include <linux/of.h>
#include "core.h"
#include "mac.h"
#include "htc.h"
#include "hif.h"
#include "wmi.h"
#include "bmi.h"
#include "debug.h"
#include "htt.h"
#include "testmode.h"
#include "wmi-ops.h"
unsigned int ath10k_debug_mask;
static bool uart_print;
static bool skip_otp;
module_param_named(debug_mask, ath10k_debug_mask, uint, 0644);
module_param(uart_print, bool, 0644);
module_param(skip_otp, bool, 0644);
MODULE_PARM_DESC(debug_mask, "Debugging mask");
MODULE_PARM_DESC(uart_print, "Uart target debugging");
MODULE_PARM_DESC(skip_otp, "Skip otp failure for calibration in testmode");
static const struct ath10k_hw_params ath10k_hw_params_list[] = {
{
.id = QCA988X_HW_2_0_VERSION,
.name = "qca988x hw2.0",
.patch_load_addr = QCA988X_HW_2_0_PATCH_LOAD_ADDR,
.uart_pin = 7,
.fw = {
.dir = QCA988X_HW_2_0_FW_DIR,
.fw = QCA988X_HW_2_0_FW_FILE,
.otp = QCA988X_HW_2_0_OTP_FILE,
.board = QCA988X_HW_2_0_BOARD_DATA_FILE,
.board_size = QCA988X_BOARD_DATA_SZ,
.board_ext_size = QCA988X_BOARD_EXT_DATA_SZ,
},
},
{
.id = QCA6174_HW_2_1_VERSION,
.name = "qca6174 hw2.1",
.patch_load_addr = QCA6174_HW_2_1_PATCH_LOAD_ADDR,
.uart_pin = 6,
.fw = {
.dir = QCA6174_HW_2_1_FW_DIR,
.fw = QCA6174_HW_2_1_FW_FILE,
.otp = QCA6174_HW_2_1_OTP_FILE,
.board = QCA6174_HW_2_1_BOARD_DATA_FILE,
.board_size = QCA6174_BOARD_DATA_SZ,
.board_ext_size = QCA6174_BOARD_EXT_DATA_SZ,
},
},
{
.id = QCA6174_HW_3_0_VERSION,
.name = "qca6174 hw3.0",
.patch_load_addr = QCA6174_HW_3_0_PATCH_LOAD_ADDR,
.uart_pin = 6,
.fw = {
.dir = QCA6174_HW_3_0_FW_DIR,
.fw = QCA6174_HW_3_0_FW_FILE,
.otp = QCA6174_HW_3_0_OTP_FILE,
.board = QCA6174_HW_3_0_BOARD_DATA_FILE,
.board_size = QCA6174_BOARD_DATA_SZ,
.board_ext_size = QCA6174_BOARD_EXT_DATA_SZ,
},
},
{
.id = QCA6174_HW_3_2_VERSION,
.name = "qca6174 hw3.2",
.patch_load_addr = QCA6174_HW_3_0_PATCH_LOAD_ADDR,
.uart_pin = 6,
.fw = {
/* uses same binaries as hw3.0 */
.dir = QCA6174_HW_3_0_FW_DIR,
.fw = QCA6174_HW_3_0_FW_FILE,
.otp = QCA6174_HW_3_0_OTP_FILE,
.board = QCA6174_HW_3_0_BOARD_DATA_FILE,
.board_size = QCA6174_BOARD_DATA_SZ,
.board_ext_size = QCA6174_BOARD_EXT_DATA_SZ,
},
},
};
static void ath10k_send_suspend_complete(struct ath10k *ar)
{
ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot suspend complete\n");
complete(&ar->target_suspend);
}
static int ath10k_init_configure_target(struct ath10k *ar)
{
u32 param_host;
int ret;
/* tell target which HTC version it is used*/
ret = ath10k_bmi_write32(ar, hi_app_host_interest,
HTC_PROTOCOL_VERSION);
if (ret) {
ath10k_err(ar, "settings HTC version failed\n");
return ret;
}
/* set the firmware mode to STA/IBSS/AP */
ret = ath10k_bmi_read32(ar, hi_option_flag, &param_host);
if (ret) {
ath10k_err(ar, "setting firmware mode (1/2) failed\n");
return ret;
}
/* TODO following parameters need to be re-visited. */
/* num_device */
param_host |= (1 << HI_OPTION_NUM_DEV_SHIFT);
/* Firmware mode */
/* FIXME: Why FW_MODE_AP ??.*/
param_host |= (HI_OPTION_FW_MODE_AP << HI_OPTION_FW_MODE_SHIFT);
/* mac_addr_method */
param_host |= (1 << HI_OPTION_MAC_ADDR_METHOD_SHIFT);
/* firmware_bridge */
param_host |= (0 << HI_OPTION_FW_BRIDGE_SHIFT);
/* fwsubmode */
param_host |= (0 << HI_OPTION_FW_SUBMODE_SHIFT);
ret = ath10k_bmi_write32(ar, hi_option_flag, param_host);
if (ret) {
ath10k_err(ar, "setting firmware mode (2/2) failed\n");
return ret;
}
/* We do all byte-swapping on the host */
ret = ath10k_bmi_write32(ar, hi_be, 0);
if (ret) {
ath10k_err(ar, "setting host CPU BE mode failed\n");
return ret;
}
/* FW descriptor/Data swap flags */
ret = ath10k_bmi_write32(ar, hi_fw_swap, 0);
if (ret) {
ath10k_err(ar, "setting FW data/desc swap flags failed\n");
return ret;
}
return 0;
}
static const struct firmware *ath10k_fetch_fw_file(struct ath10k *ar,
const char *dir,
const char *file)
{
char filename[100];
const struct firmware *fw;
int ret;
if (file == NULL)
return ERR_PTR(-ENOENT);
if (dir == NULL)
dir = ".";
snprintf(filename, sizeof(filename), "%s/%s", dir, file);
ret = request_firmware(&fw, filename, ar->dev);
if (ret)
return ERR_PTR(ret);
return fw;
}
static int ath10k_push_board_ext_data(struct ath10k *ar, const void *data,
size_t data_len)
{
u32 board_data_size = ar->hw_params.fw.board_size;
u32 board_ext_data_size = ar->hw_params.fw.board_ext_size;
u32 board_ext_data_addr;
int ret;
ret = ath10k_bmi_read32(ar, hi_board_ext_data, &board_ext_data_addr);
if (ret) {
ath10k_err(ar, "could not read board ext data addr (%d)\n",
ret);
return ret;
}
ath10k_dbg(ar, ATH10K_DBG_BOOT,
"boot push board extended data addr 0x%x\n",
board_ext_data_addr);
if (board_ext_data_addr == 0)
return 0;
if (data_len != (board_data_size + board_ext_data_size)) {
ath10k_err(ar, "invalid board (ext) data sizes %zu != %d+%d\n",
data_len, board_data_size, board_ext_data_size);
return -EINVAL;
}
ret = ath10k_bmi_write_memory(ar, board_ext_data_addr,
data + board_data_size,
board_ext_data_size);
if (ret) {
ath10k_err(ar, "could not write board ext data (%d)\n", ret);
return ret;
}
ret = ath10k_bmi_write32(ar, hi_board_ext_data_config,
(board_ext_data_size << 16) | 1);
if (ret) {
ath10k_err(ar, "could not write board ext data bit (%d)\n",
ret);
return ret;
}
return 0;
}
static int ath10k_download_board_data(struct ath10k *ar, const void *data,
size_t data_len)
{
u32 board_data_size = ar->hw_params.fw.board_size;
u32 address;
int ret;
ret = ath10k_push_board_ext_data(ar, data, data_len);
if (ret) {
ath10k_err(ar, "could not push board ext data (%d)\n", ret);
goto exit;
}
ret = ath10k_bmi_read32(ar, hi_board_data, &address);
if (ret) {
ath10k_err(ar, "could not read board data addr (%d)\n", ret);
goto exit;
}
ret = ath10k_bmi_write_memory(ar, address, data,
min_t(u32, board_data_size,
data_len));
if (ret) {
ath10k_err(ar, "could not write board data (%d)\n", ret);
goto exit;
}
ret = ath10k_bmi_write32(ar, hi_board_data_initialized, 1);
if (ret) {
ath10k_err(ar, "could not write board data bit (%d)\n", ret);
goto exit;
}
exit:
return ret;
}
static int ath10k_download_cal_file(struct ath10k *ar)
{
int ret;
if (!ar->cal_file)
return -ENOENT;
if (IS_ERR(ar->cal_file))
return PTR_ERR(ar->cal_file);
ret = ath10k_download_board_data(ar, ar->cal_file->data,
ar->cal_file->size);
if (ret) {
ath10k_err(ar, "failed to download cal_file data: %d\n", ret);
return ret;
}
ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot cal file downloaded\n");
return 0;
}
static int ath10k_download_cal_dt(struct ath10k *ar)
{
struct device_node *node;
int data_len;
void *data;
int ret;
node = ar->dev->of_node;
if (!node)
/* Device Tree is optional, don't print any warnings if
* there's no node for ath10k.
*/
return -ENOENT;
if (!of_get_property(node, "qcom,ath10k-calibration-data",
&data_len)) {
/* The calibration data node is optional */
return -ENOENT;
}
if (data_len != QCA988X_CAL_DATA_LEN) {
ath10k_warn(ar, "invalid calibration data length in DT: %d\n",
data_len);
ret = -EMSGSIZE;
goto out;
}
data = kmalloc(data_len, GFP_KERNEL);
if (!data) {
ret = -ENOMEM;
goto out;
}
ret = of_property_read_u8_array(node, "qcom,ath10k-calibration-data",
data, data_len);
if (ret) {
ath10k_warn(ar, "failed to read calibration data from DT: %d\n",
ret);
goto out_free;
}
ret = ath10k_download_board_data(ar, data, data_len);
if (ret) {
ath10k_warn(ar, "failed to download calibration data from Device Tree: %d\n",
ret);
goto out_free;
}
ret = 0;
out_free:
kfree(data);
out:
return ret;
}
static int ath10k_download_and_run_otp(struct ath10k *ar)
{
u32 result, address = ar->hw_params.patch_load_addr;
int ret;
ret = ath10k_download_board_data(ar, ar->board_data, ar->board_len);
if (ret) {
ath10k_err(ar, "failed to download board data: %d\n", ret);
return ret;
}
/* OTP is optional */
if (!ar->otp_data || !ar->otp_len) {
ath10k_warn(ar, "Not running otp, calibration will be incorrect (otp-data %p otp_len %zd)!\n",
ar->otp_data, ar->otp_len);
return 0;
}
ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot upload otp to 0x%x len %zd\n",
address, ar->otp_len);
ret = ath10k_bmi_fast_download(ar, address, ar->otp_data, ar->otp_len);
if (ret) {
ath10k_err(ar, "could not write otp (%d)\n", ret);
return ret;
}
ret = ath10k_bmi_execute(ar, address, 0, &result);
if (ret) {
ath10k_err(ar, "could not execute otp (%d)\n", ret);
return ret;
}
ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot otp execute result %d\n", result);
if (!skip_otp && result != 0) {
ath10k_err(ar, "otp calibration failed: %d", result);
return -EINVAL;
}
return 0;
}
static int ath10k_download_fw(struct ath10k *ar, enum ath10k_firmware_mode mode)
{
u32 address, data_len;
const char *mode_name;
const void *data;
int ret;
address = ar->hw_params.patch_load_addr;
switch (mode) {
case ATH10K_FIRMWARE_MODE_NORMAL:
data = ar->firmware_data;
data_len = ar->firmware_len;
mode_name = "normal";
break;
case ATH10K_FIRMWARE_MODE_UTF:
data = ar->testmode.utf->data;
data_len = ar->testmode.utf->size;
mode_name = "utf";
break;
default:
ath10k_err(ar, "unknown firmware mode: %d\n", mode);
return -EINVAL;
}
ath10k_dbg(ar, ATH10K_DBG_BOOT,
"boot uploading firmware image %p len %d mode %s\n",
data, data_len, mode_name);
ret = ath10k_bmi_fast_download(ar, address, data, data_len);
if (ret) {
ath10k_err(ar, "failed to download %s firmware: %d\n",
mode_name, ret);
return ret;
}
return ret;
}
static void ath10k_core_free_firmware_files(struct ath10k *ar)
{
if (!IS_ERR(ar->board))
release_firmware(ar->board);
if (!IS_ERR(ar->otp))
release_firmware(ar->otp);
if (!IS_ERR(ar->firmware))
release_firmware(ar->firmware);
if (!IS_ERR(ar->cal_file))
release_firmware(ar->cal_file);
ar->board = NULL;
ar->board_data = NULL;
ar->board_len = 0;
ar->otp = NULL;
ar->otp_data = NULL;
ar->otp_len = 0;
ar->firmware = NULL;
ar->firmware_data = NULL;
ar->firmware_len = 0;
ar->cal_file = NULL;
}
static int ath10k_fetch_cal_file(struct ath10k *ar)
{
char filename[100];
/* cal-<bus>-<id>.bin */
scnprintf(filename, sizeof(filename), "cal-%s-%s.bin",
ath10k_bus_str(ar->hif.bus), dev_name(ar->dev));
ar->cal_file = ath10k_fetch_fw_file(ar, ATH10K_FW_DIR, filename);
if (IS_ERR(ar->cal_file))
/* calibration file is optional, don't print any warnings */
return PTR_ERR(ar->cal_file);
ath10k_dbg(ar, ATH10K_DBG_BOOT, "found calibration file %s/%s\n",
ATH10K_FW_DIR, filename);
return 0;
}
static int ath10k_core_fetch_firmware_api_1(struct ath10k *ar)
{
int ret = 0;
if (ar->hw_params.fw.fw == NULL) {
ath10k_err(ar, "firmware file not defined\n");
return -EINVAL;
}
if (ar->hw_params.fw.board == NULL) {
ath10k_err(ar, "board data file not defined");
return -EINVAL;
}
ar->board = ath10k_fetch_fw_file(ar,
ar->hw_params.fw.dir,
ar->hw_params.fw.board);
if (IS_ERR(ar->board)) {
ret = PTR_ERR(ar->board);
ath10k_err(ar, "could not fetch board data (%d)\n", ret);
goto err;
}
ar->board_data = ar->board->data;
ar->board_len = ar->board->size;
ar->firmware = ath10k_fetch_fw_file(ar,
ar->hw_params.fw.dir,
ar->hw_params.fw.fw);
if (IS_ERR(ar->firmware)) {
ret = PTR_ERR(ar->firmware);
ath10k_err(ar, "could not fetch firmware (%d)\n", ret);
goto err;
}
ar->firmware_data = ar->firmware->data;
ar->firmware_len = ar->firmware->size;
/* OTP may be undefined. If so, don't fetch it at all */
if (ar->hw_params.fw.otp == NULL)
return 0;
ar->otp = ath10k_fetch_fw_file(ar,
ar->hw_params.fw.dir,
ar->hw_params.fw.otp);
if (IS_ERR(ar->otp)) {
ret = PTR_ERR(ar->otp);
ath10k_err(ar, "could not fetch otp (%d)\n", ret);
goto err;
}
ar->otp_data = ar->otp->data;
ar->otp_len = ar->otp->size;
return 0;
err:
ath10k_core_free_firmware_files(ar);
return ret;
}
static int ath10k_core_fetch_firmware_api_n(struct ath10k *ar, const char *name)
{
size_t magic_len, len, ie_len;
int ie_id, i, index, bit, ret;
struct ath10k_fw_ie *hdr;
const u8 *data;
__le32 *timestamp, *version;
/* first fetch the firmware file (firmware-*.bin) */
ar->firmware = ath10k_fetch_fw_file(ar, ar->hw_params.fw.dir, name);
if (IS_ERR(ar->firmware)) {
ath10k_err(ar, "could not fetch firmware file '%s/%s': %ld\n",
ar->hw_params.fw.dir, name, PTR_ERR(ar->firmware));
return PTR_ERR(ar->firmware);
}
data = ar->firmware->data;
len = ar->firmware->size;
/* magic also includes the null byte, check that as well */
magic_len = strlen(ATH10K_FIRMWARE_MAGIC) + 1;
if (len < magic_len) {
ath10k_err(ar, "firmware file '%s/%s' too small to contain magic: %zu\n",
ar->hw_params.fw.dir, name, len);
ret = -EINVAL;
goto err;
}
if (memcmp(data, ATH10K_FIRMWARE_MAGIC, magic_len) != 0) {
ath10k_err(ar, "invalid firmware magic\n");
ret = -EINVAL;
goto err;
}
/* jump over the padding */
magic_len = ALIGN(magic_len, 4);
len -= magic_len;
data += magic_len;
/* loop elements */
while (len > sizeof(struct ath10k_fw_ie)) {
hdr = (struct ath10k_fw_ie *)data;
ie_id = le32_to_cpu(hdr->id);
ie_len = le32_to_cpu(hdr->len);
len -= sizeof(*hdr);
data += sizeof(*hdr);
if (len < ie_len) {
ath10k_err(ar, "invalid length for FW IE %d (%zu < %zu)\n",
ie_id, len, ie_len);
ret = -EINVAL;
goto err;
}
switch (ie_id) {
case ATH10K_FW_IE_FW_VERSION:
if (ie_len > sizeof(ar->hw->wiphy->fw_version) - 1)
break;
memcpy(ar->hw->wiphy->fw_version, data, ie_len);
ar->hw->wiphy->fw_version[ie_len] = '\0';
ath10k_dbg(ar, ATH10K_DBG_BOOT,
"found fw version %s\n",
ar->hw->wiphy->fw_version);
break;
case ATH10K_FW_IE_TIMESTAMP:
if (ie_len != sizeof(u32))
break;
timestamp = (__le32 *)data;
ath10k_dbg(ar, ATH10K_DBG_BOOT, "found fw timestamp %d\n",
le32_to_cpup(timestamp));
break;
case ATH10K_FW_IE_FEATURES:
ath10k_dbg(ar, ATH10K_DBG_BOOT,
"found firmware features ie (%zd B)\n",
ie_len);
for (i = 0; i < ATH10K_FW_FEATURE_COUNT; i++) {
index = i / 8;
bit = i % 8;
if (index == ie_len)
break;
if (data[index] & (1 << bit)) {
ath10k_dbg(ar, ATH10K_DBG_BOOT,
"Enabling feature bit: %i\n",
i);
__set_bit(i, ar->fw_features);
}
}
ath10k_dbg_dump(ar, ATH10K_DBG_BOOT, "features", "",
ar->fw_features,
sizeof(ar->fw_features));
break;
case ATH10K_FW_IE_FW_IMAGE:
ath10k_dbg(ar, ATH10K_DBG_BOOT,
"found fw image ie (%zd B)\n",
ie_len);
ar->firmware_data = data;
ar->firmware_len = ie_len;
break;
case ATH10K_FW_IE_OTP_IMAGE:
ath10k_dbg(ar, ATH10K_DBG_BOOT,
"found otp image ie (%zd B)\n",
ie_len);
ar->otp_data = data;
ar->otp_len = ie_len;
break;
case ATH10K_FW_IE_WMI_OP_VERSION:
if (ie_len != sizeof(u32))
break;
version = (__le32 *)data;
ar->wmi.op_version = le32_to_cpup(version);
ath10k_dbg(ar, ATH10K_DBG_BOOT, "found fw ie wmi op version %d\n",
ar->wmi.op_version);
break;
default:
ath10k_warn(ar, "Unknown FW IE: %u\n",
le32_to_cpu(hdr->id));
break;
}
/* jump over the padding */
ie_len = ALIGN(ie_len, 4);
len -= ie_len;
data += ie_len;
}
if (!ar->firmware_data || !ar->firmware_len) {
ath10k_warn(ar, "No ATH10K_FW_IE_FW_IMAGE found from '%s/%s', skipping\n",
ar->hw_params.fw.dir, name);
ret = -ENOMEDIUM;
goto err;
}
/* now fetch the board file */
if (ar->hw_params.fw.board == NULL) {
ath10k_err(ar, "board data file not defined");
ret = -EINVAL;
goto err;
}
ar->board = ath10k_fetch_fw_file(ar,
ar->hw_params.fw.dir,
ar->hw_params.fw.board);
if (IS_ERR(ar->board)) {
ret = PTR_ERR(ar->board);
ath10k_err(ar, "could not fetch board data '%s/%s' (%d)\n",
ar->hw_params.fw.dir, ar->hw_params.fw.board,
ret);
goto err;
}
ar->board_data = ar->board->data;
ar->board_len = ar->board->size;
return 0;
err:
ath10k_core_free_firmware_files(ar);
return ret;
}
static int ath10k_core_fetch_firmware_files(struct ath10k *ar)
{
int ret;
/* calibration file is optional, don't check for any errors */
ath10k_fetch_cal_file(ar);
ar->fw_api = 4;
ath10k_dbg(ar, ATH10K_DBG_BOOT, "trying fw api %d\n", ar->fw_api);
ret = ath10k_core_fetch_firmware_api_n(ar, ATH10K_FW_API4_FILE);
if (ret == 0)
goto success;
ar->fw_api = 3;
ath10k_dbg(ar, ATH10K_DBG_BOOT, "trying fw api %d\n", ar->fw_api);
ret = ath10k_core_fetch_firmware_api_n(ar, ATH10K_FW_API3_FILE);
if (ret == 0)
goto success;
ar->fw_api = 2;
ath10k_dbg(ar, ATH10K_DBG_BOOT, "trying fw api %d\n", ar->fw_api);
ret = ath10k_core_fetch_firmware_api_n(ar, ATH10K_FW_API2_FILE);
if (ret == 0)
goto success;
ar->fw_api = 1;
ath10k_dbg(ar, ATH10K_DBG_BOOT, "trying fw api %d\n", ar->fw_api);
ret = ath10k_core_fetch_firmware_api_1(ar);
if (ret)
return ret;
success:
ath10k_dbg(ar, ATH10K_DBG_BOOT, "using fw api %d\n", ar->fw_api);
return 0;
}
static int ath10k_download_cal_data(struct ath10k *ar)
{
int ret;
ret = ath10k_download_cal_file(ar);
if (ret == 0) {
ar->cal_mode = ATH10K_CAL_MODE_FILE;
goto done;
}
ath10k_dbg(ar, ATH10K_DBG_BOOT,
"boot did not find a calibration file, try DT next: %d\n",
ret);
ret = ath10k_download_cal_dt(ar);
if (ret == 0) {
ar->cal_mode = ATH10K_CAL_MODE_DT;
goto done;
}
ath10k_dbg(ar, ATH10K_DBG_BOOT,
"boot did not find DT entry, try OTP next: %d\n",
ret);
ret = ath10k_download_and_run_otp(ar);
if (ret) {
ath10k_err(ar, "failed to run otp: %d\n", ret);
return ret;
}
ar->cal_mode = ATH10K_CAL_MODE_OTP;
done:
ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot using calibration mode %s\n",
ath10k_cal_mode_str(ar->cal_mode));
return 0;
}
static int ath10k_init_uart(struct ath10k *ar)
{
int ret;
/*
* Explicitly setting UART prints to zero as target turns it on
* based on scratch registers.
*/
ret = ath10k_bmi_write32(ar, hi_serial_enable, 0);
if (ret) {
ath10k_warn(ar, "could not disable UART prints (%d)\n", ret);
return ret;
}
if (!uart_print)
return 0;
ret = ath10k_bmi_write32(ar, hi_dbg_uart_txpin, ar->hw_params.uart_pin);
if (ret) {
ath10k_warn(ar, "could not enable UART prints (%d)\n", ret);
return ret;
}
ret = ath10k_bmi_write32(ar, hi_serial_enable, 1);
if (ret) {
ath10k_warn(ar, "could not enable UART prints (%d)\n", ret);
return ret;
}
/* Set the UART baud rate to 19200. */
ret = ath10k_bmi_write32(ar, hi_desired_baud_rate, 19200);
if (ret) {
ath10k_warn(ar, "could not set the baud rate (%d)\n", ret);
return ret;
}
ath10k_info(ar, "UART prints enabled\n");
return 0;
}
static int ath10k_init_hw_params(struct ath10k *ar)
{
const struct ath10k_hw_params *uninitialized_var(hw_params);
int i;
for (i = 0; i < ARRAY_SIZE(ath10k_hw_params_list); i++) {
hw_params = &ath10k_hw_params_list[i];
if (hw_params->id == ar->target_version)
break;
}
if (i == ARRAY_SIZE(ath10k_hw_params_list)) {
ath10k_err(ar, "Unsupported hardware version: 0x%x\n",
ar->target_version);
return -EINVAL;
}
ar->hw_params = *hw_params;
ath10k_dbg(ar, ATH10K_DBG_BOOT, "Hardware name %s version 0x%x\n",
ar->hw_params.name, ar->target_version);
return 0;
}
static void ath10k_core_restart(struct work_struct *work)
{
struct ath10k *ar = container_of(work, struct ath10k, restart_work);
set_bit(ATH10K_FLAG_CRASH_FLUSH, &ar->dev_flags);
/* Place a barrier to make sure the compiler doesn't reorder
* CRASH_FLUSH and calling other functions.
*/
barrier();
ieee80211_stop_queues(ar->hw);
ath10k_drain_tx(ar);
complete_all(&ar->scan.started);
complete_all(&ar->scan.completed);
complete_all(&ar->scan.on_channel);
complete_all(&ar->offchan_tx_completed);
complete_all(&ar->install_key_done);
complete_all(&ar->vdev_setup_done);
complete_all(&ar->thermal.wmi_sync);
wake_up(&ar->htt.empty_tx_wq);
wake_up(&ar->wmi.tx_credits_wq);
wake_up(&ar->peer_mapping_wq);
mutex_lock(&ar->conf_mutex);
switch (ar->state) {
case ATH10K_STATE_ON:
ar->state = ATH10K_STATE_RESTARTING;
ath10k_hif_stop(ar);
ath10k_scan_finish(ar);
ieee80211_restart_hw(ar->hw);
break;
case ATH10K_STATE_OFF:
/* this can happen if driver is being unloaded
* or if the crash happens during FW probing */
ath10k_warn(ar, "cannot restart a device that hasn't been started\n");
break;
case ATH10K_STATE_RESTARTING:
/* hw restart might be requested from multiple places */
break;
case ATH10K_STATE_RESTARTED:
ar->state = ATH10K_STATE_WEDGED;
/* fall through */
case ATH10K_STATE_WEDGED:
ath10k_warn(ar, "device is wedged, will not restart\n");
break;
case ATH10K_STATE_UTF:
ath10k_warn(ar, "firmware restart in UTF mode not supported\n");
break;
}
mutex_unlock(&ar->conf_mutex);
}
static int ath10k_core_init_firmware_features(struct ath10k *ar)
{
if (test_bit(ATH10K_FW_FEATURE_WMI_10_2, ar->fw_features) &&
!test_bit(ATH10K_FW_FEATURE_WMI_10X, ar->fw_features)) {
ath10k_err(ar, "feature bits corrupted: 10.2 feature requires 10.x feature to be set as well");
return -EINVAL;
}
if (ar->wmi.op_version >= ATH10K_FW_WMI_OP_VERSION_MAX) {
ath10k_err(ar, "unsupported WMI OP version (max %d): %d\n",
ATH10K_FW_WMI_OP_VERSION_MAX, ar->wmi.op_version);
return -EINVAL;
}
/* Backwards compatibility for firmwares without
* ATH10K_FW_IE_WMI_OP_VERSION.
*/
if (ar->wmi.op_version == ATH10K_FW_WMI_OP_VERSION_UNSET) {
if (test_bit(ATH10K_FW_FEATURE_WMI_10X, ar->fw_features)) {
if (test_bit(ATH10K_FW_FEATURE_WMI_10_2,
ar->fw_features))
ar->wmi.op_version = ATH10K_FW_WMI_OP_VERSION_10_2;
else
ar->wmi.op_version = ATH10K_FW_WMI_OP_VERSION_10_1;
} else {
ar->wmi.op_version = ATH10K_FW_WMI_OP_VERSION_MAIN;
}
}
switch (ar->wmi.op_version) {
case ATH10K_FW_WMI_OP_VERSION_MAIN:
ar->max_num_peers = TARGET_NUM_PEERS;
ar->max_num_stations = TARGET_NUM_STATIONS;
ar->max_num_vdevs = TARGET_NUM_VDEVS;
ar->htt.max_num_pending_tx = TARGET_NUM_MSDU_DESC;
break;
case ATH10K_FW_WMI_OP_VERSION_10_1:
case ATH10K_FW_WMI_OP_VERSION_10_2:
case ATH10K_FW_WMI_OP_VERSION_10_2_4:
ar->max_num_peers = TARGET_10X_NUM_PEERS;
ar->max_num_stations = TARGET_10X_NUM_STATIONS;
ar->max_num_vdevs = TARGET_10X_NUM_VDEVS;
ar->htt.max_num_pending_tx = TARGET_10X_NUM_MSDU_DESC;
break;
case ATH10K_FW_WMI_OP_VERSION_TLV:
ar->max_num_peers = TARGET_TLV_NUM_PEERS;
ar->max_num_stations = TARGET_TLV_NUM_STATIONS;
ar->max_num_vdevs = TARGET_TLV_NUM_VDEVS;
ar->htt.max_num_pending_tx = TARGET_TLV_NUM_MSDU_DESC;
break;
case ATH10K_FW_WMI_OP_VERSION_UNSET:
case ATH10K_FW_WMI_OP_VERSION_MAX:
WARN_ON(1);
return -EINVAL;
}
return 0;
}
int ath10k_core_start(struct ath10k *ar, enum ath10k_firmware_mode mode)
{
int status;
lockdep_assert_held(&ar->conf_mutex);
clear_bit(ATH10K_FLAG_CRASH_FLUSH, &ar->dev_flags);
ath10k_bmi_start(ar);
if (ath10k_init_configure_target(ar)) {
status = -EINVAL;
goto err;
}
status = ath10k_download_cal_data(ar);
if (status)
goto err;
status = ath10k_download_fw(ar, mode);
if (status)
goto err;
status = ath10k_init_uart(ar);
if (status)
goto err;
ar->htc.htc_ops.target_send_suspend_complete =
ath10k_send_suspend_complete;
status = ath10k_htc_init(ar);
if (status) {
ath10k_err(ar, "could not init HTC (%d)\n", status);
goto err;
}
status = ath10k_bmi_done(ar);
if (status)
goto err;
status = ath10k_wmi_attach(ar);
if (status) {
ath10k_err(ar, "WMI attach failed: %d\n", status);
goto err;
}
status = ath10k_htt_init(ar);
if (status) {
ath10k_err(ar, "failed to init htt: %d\n", status);
goto err_wmi_detach;
}
status = ath10k_htt_tx_alloc(&ar->htt);
if (status) {
ath10k_err(ar, "failed to alloc htt tx: %d\n", status);
goto err_wmi_detach;
}
status = ath10k_htt_rx_alloc(&ar->htt);
if (status) {
ath10k_err(ar, "failed to alloc htt rx: %d\n", status);
goto err_htt_tx_detach;
}
status = ath10k_hif_start(ar);
if (status) {
ath10k_err(ar, "could not start HIF: %d\n", status);
goto err_htt_rx_detach;
}
status = ath10k_htc_wait_target(&ar->htc);
if (status) {
ath10k_err(ar, "failed to connect to HTC: %d\n", status);
goto err_hif_stop;
}
if (mode == ATH10K_FIRMWARE_MODE_NORMAL) {
status = ath10k_htt_connect(&ar->htt);
if (status) {
ath10k_err(ar, "failed to connect htt (%d)\n", status);
goto err_hif_stop;
}
}
status = ath10k_wmi_connect(ar);
if (status) {
ath10k_err(ar, "could not connect wmi: %d\n", status);
goto err_hif_stop;
}
status = ath10k_htc_start(&ar->htc);
if (status) {
ath10k_err(ar, "failed to start htc: %d\n", status);
goto err_hif_stop;
}
if (mode == ATH10K_FIRMWARE_MODE_NORMAL) {
status = ath10k_wmi_wait_for_service_ready(ar);
if (status <= 0) {
ath10k_warn(ar, "wmi service ready event not received");
status = -ETIMEDOUT;
goto err_hif_stop;
}
}
ath10k_dbg(ar, ATH10K_DBG_BOOT, "firmware %s booted\n",
ar->hw->wiphy->fw_version);
status = ath10k_wmi_cmd_init(ar);
if (status) {
ath10k_err(ar, "could not send WMI init command (%d)\n",
status);
goto err_hif_stop;
}
status = ath10k_wmi_wait_for_unified_ready(ar);
if (status <= 0) {
ath10k_err(ar, "wmi unified ready event not received\n");
status = -ETIMEDOUT;
goto err_hif_stop;
}
/* If firmware indicates Full Rx Reorder support it must be used in a
* slightly different manner. Let HTT code know.
*/
ar->htt.rx_ring.in_ord_rx = !!(test_bit(WMI_SERVICE_RX_FULL_REORDER,
ar->wmi.svc_map));
status = ath10k_htt_rx_ring_refill(ar);
if (status) {
ath10k_err(ar, "failed to refill htt rx ring: %d\n", status);
goto err_hif_stop;
}
/* we don't care about HTT in UTF mode */
if (mode == ATH10K_FIRMWARE_MODE_NORMAL) {
status = ath10k_htt_setup(&ar->htt);
if (status) {
ath10k_err(ar, "failed to setup htt: %d\n", status);
goto err_hif_stop;
}
}
status = ath10k_debug_start(ar);
if (status)
goto err_hif_stop;
ar->free_vdev_map = (1LL << ar->max_num_vdevs) - 1;
INIT_LIST_HEAD(&ar->arvifs);
return 0;
err_hif_stop:
ath10k_hif_stop(ar);
err_htt_rx_detach:
ath10k_htt_rx_free(&ar->htt);
err_htt_tx_detach:
ath10k_htt_tx_free(&ar->htt);
err_wmi_detach:
ath10k_wmi_detach(ar);
err:
return status;
}
EXPORT_SYMBOL(ath10k_core_start);
int ath10k_wait_for_suspend(struct ath10k *ar, u32 suspend_opt)
{
int ret;
reinit_completion(&ar->target_suspend);
ret = ath10k_wmi_pdev_suspend_target(ar, suspend_opt);
if (ret) {
ath10k_warn(ar, "could not suspend target (%d)\n", ret);
return ret;
}
ret = wait_for_completion_timeout(&ar->target_suspend, 1 * HZ);
if (ret == 0) {
ath10k_warn(ar, "suspend timed out - target pause event never came\n");
return -ETIMEDOUT;
}
return 0;
}
void ath10k_core_stop(struct ath10k *ar)
{
lockdep_assert_held(&ar->conf_mutex);
/* try to suspend target */
if (ar->state != ATH10K_STATE_RESTARTING &&
ar->state != ATH10K_STATE_UTF)
ath10k_wait_for_suspend(ar, WMI_PDEV_SUSPEND_AND_DISABLE_INTR);
ath10k_debug_stop(ar);
ath10k_hif_stop(ar);
ath10k_htt_tx_free(&ar->htt);
ath10k_htt_rx_free(&ar->htt);
ath10k_wmi_detach(ar);
}
EXPORT_SYMBOL(ath10k_core_stop);
/* mac80211 manages fw/hw initialization through start/stop hooks. However in
* order to know what hw capabilities should be advertised to mac80211 it is
* necessary to load the firmware (and tear it down immediately since start
* hook will try to init it again) before registering */
static int ath10k_core_probe_fw(struct ath10k *ar)
{
struct bmi_target_info target_info;
int ret = 0;
ret = ath10k_hif_power_up(ar);
if (ret) {
ath10k_err(ar, "could not start pci hif (%d)\n", ret);
return ret;
}
memset(&target_info, 0, sizeof(target_info));
ret = ath10k_bmi_get_target_info(ar, &target_info);
if (ret) {
ath10k_err(ar, "could not get target info (%d)\n", ret);
goto err_power_down;
}
ar->target_version = target_info.version;
ar->hw->wiphy->hw_version = target_info.version;
ret = ath10k_init_hw_params(ar);
if (ret) {
ath10k_err(ar, "could not get hw params (%d)\n", ret);
goto err_power_down;
}
ret = ath10k_core_fetch_firmware_files(ar);
if (ret) {
ath10k_err(ar, "could not fetch firmware files (%d)\n", ret);
goto err_power_down;
}
ret = ath10k_core_init_firmware_features(ar);
if (ret) {
ath10k_err(ar, "fatal problem with firmware features: %d\n",
ret);
goto err_free_firmware_files;
}
mutex_lock(&ar->conf_mutex);
ret = ath10k_core_start(ar, ATH10K_FIRMWARE_MODE_NORMAL);
if (ret) {
ath10k_err(ar, "could not init core (%d)\n", ret);
goto err_unlock;
}
ath10k_print_driver_info(ar);
ath10k_core_stop(ar);
mutex_unlock(&ar->conf_mutex);
ath10k_hif_power_down(ar);
return 0;
err_unlock:
mutex_unlock(&ar->conf_mutex);
err_free_firmware_files:
ath10k_core_free_firmware_files(ar);
err_power_down:
ath10k_hif_power_down(ar);
return ret;
}
static void ath10k_core_register_work(struct work_struct *work)
{
struct ath10k *ar = container_of(work, struct ath10k, register_work);
int status;
status = ath10k_core_probe_fw(ar);
if (status) {
ath10k_err(ar, "could not probe fw (%d)\n", status);
goto err;
}
status = ath10k_mac_register(ar);
if (status) {
ath10k_err(ar, "could not register to mac80211 (%d)\n", status);
goto err_release_fw;
}
status = ath10k_debug_register(ar);
if (status) {
ath10k_err(ar, "unable to initialize debugfs\n");
goto err_unregister_mac;
}
status = ath10k_spectral_create(ar);
if (status) {
ath10k_err(ar, "failed to initialize spectral\n");
goto err_debug_destroy;
}
status = ath10k_thermal_register(ar);
if (status) {
ath10k_err(ar, "could not register thermal device: %d\n",
status);
goto err_spectral_destroy;
}
set_bit(ATH10K_FLAG_CORE_REGISTERED, &ar->dev_flags);
return;
err_spectral_destroy:
ath10k_spectral_destroy(ar);
err_debug_destroy:
ath10k_debug_destroy(ar);
err_unregister_mac:
ath10k_mac_unregister(ar);
err_release_fw:
ath10k_core_free_firmware_files(ar);
err:
/* TODO: It's probably a good idea to release device from the driver
* but calling device_release_driver() here will cause a deadlock.
*/
return;
}
int ath10k_core_register(struct ath10k *ar, u32 chip_id)
{
ar->chip_id = chip_id;
queue_work(ar->workqueue, &ar->register_work);
return 0;
}
EXPORT_SYMBOL(ath10k_core_register);
void ath10k_core_unregister(struct ath10k *ar)
{
cancel_work_sync(&ar->register_work);
if (!test_bit(ATH10K_FLAG_CORE_REGISTERED, &ar->dev_flags))
return;
ath10k_thermal_unregister(ar);
/* Stop spectral before unregistering from mac80211 to remove the
* relayfs debugfs file cleanly. Otherwise the parent debugfs tree
* would be already be free'd recursively, leading to a double free.
*/
ath10k_spectral_destroy(ar);
/* We must unregister from mac80211 before we stop HTC and HIF.
* Otherwise we will fail to submit commands to FW and mac80211 will be
* unhappy about callback failures. */
ath10k_mac_unregister(ar);
ath10k_testmode_destroy(ar);
ath10k_core_free_firmware_files(ar);
ath10k_debug_unregister(ar);
}
EXPORT_SYMBOL(ath10k_core_unregister);
struct ath10k *ath10k_core_create(size_t priv_size, struct device *dev,
enum ath10k_bus bus,
enum ath10k_hw_rev hw_rev,
const struct ath10k_hif_ops *hif_ops)
{
struct ath10k *ar;
int ret;
ar = ath10k_mac_create(priv_size);
if (!ar)
return NULL;
ar->ath_common.priv = ar;
ar->ath_common.hw = ar->hw;
ar->dev = dev;
ar->hw_rev = hw_rev;
ar->hif.ops = hif_ops;
ar->hif.bus = bus;
switch (hw_rev) {
case ATH10K_HW_QCA988X:
ar->regs = &qca988x_regs;
break;
case ATH10K_HW_QCA6174:
ar->regs = &qca6174_regs;
break;
default:
ath10k_err(ar, "unsupported core hardware revision %d\n",
hw_rev);
ret = -ENOTSUPP;
goto err_free_mac;
}
init_completion(&ar->scan.started);
init_completion(&ar->scan.completed);
init_completion(&ar->scan.on_channel);
init_completion(&ar->target_suspend);
init_completion(&ar->install_key_done);
init_completion(&ar->vdev_setup_done);
init_completion(&ar->thermal.wmi_sync);
INIT_DELAYED_WORK(&ar->scan.timeout, ath10k_scan_timeout_work);
ar->workqueue = create_singlethread_workqueue("ath10k_wq");
if (!ar->workqueue)
goto err_free_mac;
mutex_init(&ar->conf_mutex);
spin_lock_init(&ar->data_lock);
INIT_LIST_HEAD(&ar->peers);
init_waitqueue_head(&ar->peer_mapping_wq);
init_waitqueue_head(&ar->htt.empty_tx_wq);
init_waitqueue_head(&ar->wmi.tx_credits_wq);
init_completion(&ar->offchan_tx_completed);
INIT_WORK(&ar->offchan_tx_work, ath10k_offchan_tx_work);
skb_queue_head_init(&ar->offchan_tx_queue);
INIT_WORK(&ar->wmi_mgmt_tx_work, ath10k_mgmt_over_wmi_tx_work);
skb_queue_head_init(&ar->wmi_mgmt_tx_queue);
INIT_WORK(&ar->register_work, ath10k_core_register_work);
INIT_WORK(&ar->restart_work, ath10k_core_restart);
ret = ath10k_debug_create(ar);
if (ret)
goto err_free_wq;
return ar;
err_free_wq:
destroy_workqueue(ar->workqueue);
err_free_mac:
ath10k_mac_destroy(ar);
return NULL;
}
EXPORT_SYMBOL(ath10k_core_create);
void ath10k_core_destroy(struct ath10k *ar)
{
flush_workqueue(ar->workqueue);
destroy_workqueue(ar->workqueue);
ath10k_debug_destroy(ar);
ath10k_mac_destroy(ar);
}
EXPORT_SYMBOL(ath10k_core_destroy);
MODULE_AUTHOR("Qualcomm Atheros");
MODULE_DESCRIPTION("Core module for QCA988X PCIe devices.");
MODULE_LICENSE("Dual BSD/GPL");