The necessary update in dt binding doc
(Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt) is done
in below patch and it's posted separately,
"dt: bindings: add new dt entry for pre calibration in qcom,ath10k.txt"
Raja Mani (3):
ath10k: pass cal data location as an argument to
ath10k_download_cal_{file|dt}
ath10k: move cal data len to hw_params
ath10k: incorporate qca4019 cal data download sequence
drivers/net/wireless/ath/ath10k/core.c | 120 ++++++++++++++++++++++++++++----
drivers/net/wireless/ath/ath10k/core.h | 12 +++-
drivers/net/wireless/ath/ath10k/debug.c | 7 +-
drivers/net/wireless/ath/ath10k/hw.h | 2 -
4 files changed, 120 insertions(+), 21 deletions(-)
--
1.8.1.2
qca4019 calibration data is stored in the host memory and it's mandatory
to download it even before reading board id and chip id from the target.
Also, there is a need to execute otp (download and run) twice, one after
cal data download and another one after board data download.
Existing cal data file name 'cal-<bus>-<id>.bin' and device tree entry
'qcom,ath10k-calibration-data' used in ath10k has assumption that it
carries other data (like board data) also along with the calibration data.
But, qca4019 cal data contains pure calibration data (doesn't include
any other info). So, using existing same cal file name and DT entry
in qca4019 case would alter the purpose of it. To avoid this, new cal
file name 'pre-cal-<bus>-<id>.bin' and new device tree entry name
'qcom,ath10k-pre-calibration-data are introduced.
Overall qca4019's firmware download sequence would look like,
1) Download cal data (either from a file or device tree entry)
at the address specified by target in the host interest area
member "hi_board_data".
2) Download otp and run with 0x10 (PARAM_GET_EEPROM_BOARD_ID)
as a argument.
At this point, otp will take back up of downloaded cal data
content in another location in the target and return valid
board id and chip id to the host.
3) Download board data at the address specified by target
in host interest area member "hi_board_data".
4) Download otp and run with 0x10000 (PARAM_FLASH_SECTION_ALL) as
a argument.
Now otp will apply cal data content from it's backup on top
of board data download in step 3 and prepare final data base.
5) Download code swap and athwlan binary content.
Above sequences are implemented (step 1 to step 4) in the name of
pre calibration configuration.
Signed-off-by: Raja Mani <[email protected]>
---
drivers/net/wireless/ath/ath10k/core.c | 85 +++++++++++++++++++++++++++++++++-
drivers/net/wireless/ath/ath10k/core.h | 11 ++++-
2 files changed, 94 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index 2a901c6..3d05929 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -729,6 +729,14 @@ static int ath10k_fetch_cal_file(struct ath10k *ar)
{
char filename[100];
+ /* pre-cal-<bus>-<id>.bin */
+ scnprintf(filename, sizeof(filename), "pre-cal-%s-%s.bin",
+ ath10k_bus_str(ar->hif.bus), dev_name(ar->dev));
+
+ ar->pre_cal_file = ath10k_fetch_fw_file(ar, ATH10K_FW_DIR, filename);
+ if (!IS_ERR(ar->pre_cal_file))
+ goto success;
+
/* cal-<bus>-<id>.bin */
scnprintf(filename, sizeof(filename), "cal-%s-%s.bin",
ath10k_bus_str(ar->hif.bus), dev_name(ar->dev));
@@ -737,7 +745,7 @@ static int ath10k_fetch_cal_file(struct ath10k *ar)
if (IS_ERR(ar->cal_file))
/* calibration file is optional, don't print any warnings */
return PTR_ERR(ar->cal_file);
-
+success:
ath10k_dbg(ar, ATH10K_DBG_BOOT, "found calibration file %s/%s\n",
ATH10K_FW_DIR, filename);
@@ -1261,10 +1269,76 @@ success:
return 0;
}
+static int ath10k_core_pre_cal_download(struct ath10k *ar)
+{
+ int ret;
+
+ ret = ath10k_download_cal_file(ar, ar->pre_cal_file);
+ if (ret == 0) {
+ ar->cal_mode = ATH10K_PRE_CAL_MODE_FILE;
+ goto success;
+ }
+
+ ath10k_dbg(ar, ATH10K_DBG_BOOT,
+ "boot did not find a pre calibration file, try DT next: %d\n",
+ ret);
+
+ ret = ath10k_download_cal_dt(ar, "qcom,ath10k-pre-calibration-data");
+ if (ret) {
+ ath10k_dbg(ar, ATH10K_DBG_BOOT,
+ "unable to load pre cal data from DT: %d\n", ret);
+ return ret;
+ }
+ ar->cal_mode = ATH10K_PRE_CAL_MODE_DT;
+
+success:
+ ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot using calibration mode %s\n",
+ ath10k_cal_mode_str(ar->cal_mode));
+
+ return 0;
+}
+
+static int ath10k_core_pre_cal_config(struct ath10k *ar)
+{
+ int ret;
+
+ ret = ath10k_core_pre_cal_download(ar);
+ if (ret) {
+ ath10k_dbg(ar, ATH10K_DBG_BOOT,
+ "failed to load pre cal data: %d\n", ret);
+ return ret;
+ }
+
+ ret = ath10k_core_get_board_id_from_otp(ar);
+ if (ret) {
+ ath10k_err(ar, "failed to get board id: %d\n", ret);
+ return ret;
+ }
+
+ ret = ath10k_download_and_run_otp(ar);
+ if (ret) {
+ ath10k_err(ar, "failed to run otp: %d\n", ret);
+ return ret;
+ }
+
+ ath10k_dbg(ar, ATH10K_DBG_BOOT,
+ "pre cal configuration done successfully\n");
+
+ return 0;
+}
+
static int ath10k_download_cal_data(struct ath10k *ar)
{
int ret;
+ ret = ath10k_core_pre_cal_config(ar);
+ if (ret == 0)
+ return 0;
+
+ ath10k_dbg(ar, ATH10K_DBG_BOOT,
+ "pre cal download procedure failed, try cal file: %d\n",
+ ret);
+
ret = ath10k_download_cal_file(ar, ar->cal_file);
if (ret == 0) {
ar->cal_mode = ATH10K_CAL_MODE_FILE;
@@ -1842,6 +1916,15 @@ static int ath10k_core_probe_fw(struct ath10k *ar)
ath10k_debug_print_hwfw_info(ar);
+ ret = ath10k_core_pre_cal_download(ar);
+ if (ret) {
+ /* pre calibration data download is not necessary
+ * for all the chipsets. Ignore failures and continue.
+ */
+ ath10k_dbg(ar, ATH10K_DBG_BOOT,
+ "could not load pre cal data: %d\n", ret);
+ }
+
ret = ath10k_core_get_board_id_from_otp(ar);
if (ret && ret != -EOPNOTSUPP) {
ath10k_err(ar, "failed to get board id from otp: %d\n",
diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index 322a9eb..d9481ea 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -567,6 +567,8 @@ enum ath10k_cal_mode {
ATH10K_CAL_MODE_FILE,
ATH10K_CAL_MODE_OTP,
ATH10K_CAL_MODE_DT,
+ ATH10K_PRE_CAL_MODE_FILE,
+ ATH10K_PRE_CAL_MODE_DT,
};
enum ath10k_crypt_mode {
@@ -585,6 +587,10 @@ static inline const char *ath10k_cal_mode_str(enum ath10k_cal_mode mode)
return "otp";
case ATH10K_CAL_MODE_DT:
return "dt";
+ case ATH10K_PRE_CAL_MODE_FILE:
+ return "pre-cal-file";
+ case ATH10K_PRE_CAL_MODE_DT:
+ return "pre-cal-dt";
}
return "unknown";
@@ -719,7 +725,10 @@ struct ath10k {
const void *firmware_data;
size_t firmware_len;
- const struct firmware *cal_file;
+ union {
+ const struct firmware *pre_cal_file;
+ const struct firmware *cal_file;
+ };
struct {
const void *firmware_codeswap_data;
--
1.8.1.2
ath10k_download_cal_dt() compares obtained cal data content length
against QCA988X_CAL_DATA_LEN (2116 bytes). It was written by keeping
qca988x in mind. In fact, cal data length is more chip specific.
To make ath10k_download_cal_dt() more generic and reusable for other
chipsets (like qca4019), cal data length is moved to hw_params.
Signed-off-by: Raja Mani <[email protected]>
---
drivers/net/wireless/ath/ath10k/core.c | 11 ++++++++++-
drivers/net/wireless/ath/ath10k/core.h | 1 +
drivers/net/wireless/ath/ath10k/debug.c | 7 ++++---
drivers/net/wireless/ath/ath10k/hw.h | 2 --
4 files changed, 15 insertions(+), 6 deletions(-)
diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index 4ec4d72..2a901c6 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -60,6 +60,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
.channel_counters_freq_hz = 88000,
.max_probe_resp_desc_thres = 0,
.hw_4addr_pad = ATH10K_HW_4ADDR_PAD_AFTER,
+ .cal_data_len = 2116,
.fw = {
.dir = QCA988X_HW_2_0_FW_DIR,
.fw = QCA988X_HW_2_0_FW_FILE,
@@ -78,6 +79,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
.otp_exe_param = 0,
.channel_counters_freq_hz = 88000,
.max_probe_resp_desc_thres = 0,
+ .cal_data_len = 8124,
.fw = {
.dir = QCA6174_HW_2_1_FW_DIR,
.fw = QCA6174_HW_2_1_FW_FILE,
@@ -97,6 +99,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
.channel_counters_freq_hz = 88000,
.max_probe_resp_desc_thres = 0,
.hw_4addr_pad = ATH10K_HW_4ADDR_PAD_AFTER,
+ .cal_data_len = 8124,
.fw = {
.dir = QCA6174_HW_2_1_FW_DIR,
.fw = QCA6174_HW_2_1_FW_FILE,
@@ -116,6 +119,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
.channel_counters_freq_hz = 88000,
.max_probe_resp_desc_thres = 0,
.hw_4addr_pad = ATH10K_HW_4ADDR_PAD_AFTER,
+ .cal_data_len = 8124,
.fw = {
.dir = QCA6174_HW_3_0_FW_DIR,
.fw = QCA6174_HW_3_0_FW_FILE,
@@ -135,6 +139,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
.channel_counters_freq_hz = 88000,
.max_probe_resp_desc_thres = 0,
.hw_4addr_pad = ATH10K_HW_4ADDR_PAD_AFTER,
+ .cal_data_len = 8124,
.fw = {
/* uses same binaries as hw3.0 */
.dir = QCA6174_HW_3_0_FW_DIR,
@@ -159,6 +164,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
.tx_chain_mask = 0xf,
.rx_chain_mask = 0xf,
.max_spatial_stream = 4,
+ .cal_data_len = 12064,
.fw = {
.dir = QCA99X0_HW_2_0_FW_DIR,
.fw = QCA99X0_HW_2_0_FW_FILE,
@@ -177,6 +183,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
.otp_exe_param = 0,
.channel_counters_freq_hz = 88000,
.max_probe_resp_desc_thres = 0,
+ .cal_data_len = 8124,
.fw = {
.dir = QCA9377_HW_1_0_FW_DIR,
.fw = QCA9377_HW_1_0_FW_FILE,
@@ -195,6 +202,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
.otp_exe_param = 0,
.channel_counters_freq_hz = 88000,
.max_probe_resp_desc_thres = 0,
+ .cal_data_len = 8124,
.fw = {
.dir = QCA9377_HW_1_0_FW_DIR,
.fw = QCA9377_HW_1_0_FW_FILE,
@@ -218,6 +226,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
.tx_chain_mask = 0x3,
.rx_chain_mask = 0x3,
.max_spatial_stream = 2,
+ .cal_data_len = 12064,
.fw = {
.dir = QCA4019_HW_1_0_FW_DIR,
.fw = QCA4019_HW_1_0_FW_FILE,
@@ -503,7 +512,7 @@ static int ath10k_download_cal_dt(struct ath10k *ar, const char *dt_name)
return -ENOENT;
}
- if (data_len != QCA988X_CAL_DATA_LEN) {
+ if (data_len != ar->hw_params.cal_data_len) {
ath10k_warn(ar, "invalid calibration data length in DT: %d\n",
data_len);
ret = -EMSGSIZE;
diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index 23ba03f..322a9eb 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -695,6 +695,7 @@ struct ath10k {
u32 tx_chain_mask;
u32 rx_chain_mask;
u32 max_spatial_stream;
+ u32 cal_data_len;
struct ath10k_hw_params_fw {
const char *dir;
diff --git a/drivers/net/wireless/ath/ath10k/debug.c b/drivers/net/wireless/ath/ath10k/debug.c
index 076d29b..48f2835 100644
--- a/drivers/net/wireless/ath/ath10k/debug.c
+++ b/drivers/net/wireless/ath/ath10k/debug.c
@@ -1447,7 +1447,7 @@ static int ath10k_debug_cal_data_open(struct inode *inode, struct file *file)
goto err;
}
- buf = vmalloc(QCA988X_CAL_DATA_LEN);
+ buf = vmalloc(ar->hw_params.cal_data_len);
if (!buf) {
ret = -ENOMEM;
goto err;
@@ -1462,7 +1462,7 @@ static int ath10k_debug_cal_data_open(struct inode *inode, struct file *file)
}
ret = ath10k_hif_diag_read(ar, le32_to_cpu(addr), buf,
- QCA988X_CAL_DATA_LEN);
+ ar->hw_params.cal_data_len);
if (ret) {
ath10k_warn(ar, "failed to read calibration data: %d\n", ret);
goto err_vfree;
@@ -1487,10 +1487,11 @@ static ssize_t ath10k_debug_cal_data_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
+ struct ath10k *ar = file->private_data;
void *buf = file->private_data;
return simple_read_from_buffer(user_buf, count, ppos,
- buf, QCA988X_CAL_DATA_LEN);
+ buf, ar->hw_params.cal_data_len);
}
static int ath10k_debug_cal_data_release(struct inode *inode,
diff --git a/drivers/net/wireless/ath/ath10k/hw.h b/drivers/net/wireless/ath/ath10k/hw.h
index 1ff617b..c0179bc 100644
--- a/drivers/net/wireless/ath/ath10k/hw.h
+++ b/drivers/net/wireless/ath/ath10k/hw.h
@@ -134,8 +134,6 @@ enum qca9377_chip_id_rev {
#define REG_DUMP_COUNT_QCA988X 60
-#define QCA988X_CAL_DATA_LEN 2116
-
struct ath10k_fw_ie {
__le32 id;
__le32 len;
--
1.8.1.2
Both ath10k_download_cal_file() and ath10k_download_cal_dt() uses
hard coded file pointer (ar->cal_file) and device tree entry
(qcom,ath10k-calibration-data) respectively to get calibration
data content.
There is a need to use those two functions in qca4019 calibration
download sequence with different file pointer and device tree entry name.
Modify those two functions to take cal data location as an argument.
So that it can serve the purpose for other file pointer and device
tree entry.
This is just preparation before adding actual qca4019 calibration
download sequence. No functional changes.
Signed-off-by: Raja Mani <[email protected]>
---
drivers/net/wireless/ath/ath10k/core.c | 24 +++++++++++-------------
1 file changed, 11 insertions(+), 13 deletions(-)
diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index 2389c07..4ec4d72 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -462,18 +462,18 @@ exit:
return ret;
}
-static int ath10k_download_cal_file(struct ath10k *ar)
+static int ath10k_download_cal_file(struct ath10k *ar,
+ const struct firmware *file)
{
int ret;
- if (!ar->cal_file)
+ if (!file)
return -ENOENT;
- if (IS_ERR(ar->cal_file))
- return PTR_ERR(ar->cal_file);
+ if (IS_ERR(file))
+ return PTR_ERR(file);
- ret = ath10k_download_board_data(ar, ar->cal_file->data,
- ar->cal_file->size);
+ ret = ath10k_download_board_data(ar, file->data, file->size);
if (ret) {
ath10k_err(ar, "failed to download cal_file data: %d\n", ret);
return ret;
@@ -484,7 +484,7 @@ static int ath10k_download_cal_file(struct ath10k *ar)
return 0;
}
-static int ath10k_download_cal_dt(struct ath10k *ar)
+static int ath10k_download_cal_dt(struct ath10k *ar, const char *dt_name)
{
struct device_node *node;
int data_len;
@@ -498,8 +498,7 @@ static int ath10k_download_cal_dt(struct ath10k *ar)
*/
return -ENOENT;
- if (!of_get_property(node, "qcom,ath10k-calibration-data",
- &data_len)) {
+ if (!of_get_property(node, dt_name, &data_len)) {
/* The calibration data node is optional */
return -ENOENT;
}
@@ -517,8 +516,7 @@ static int ath10k_download_cal_dt(struct ath10k *ar)
goto out;
}
- ret = of_property_read_u8_array(node, "qcom,ath10k-calibration-data",
- data, data_len);
+ ret = of_property_read_u8_array(node, dt_name, data, data_len);
if (ret) {
ath10k_warn(ar, "failed to read calibration data from DT: %d\n",
ret);
@@ -1258,7 +1256,7 @@ static int ath10k_download_cal_data(struct ath10k *ar)
{
int ret;
- ret = ath10k_download_cal_file(ar);
+ ret = ath10k_download_cal_file(ar, ar->cal_file);
if (ret == 0) {
ar->cal_mode = ATH10K_CAL_MODE_FILE;
goto done;
@@ -1268,7 +1266,7 @@ static int ath10k_download_cal_data(struct ath10k *ar)
"boot did not find a calibration file, try DT next: %d\n",
ret);
- ret = ath10k_download_cal_dt(ar);
+ ret = ath10k_download_cal_dt(ar, "qcom,ath10k-calibration-data");
if (ret == 0) {
ar->cal_mode = ATH10K_CAL_MODE_DT;
goto done;
--
1.8.1.2
Raja Mani <[email protected]> writes:
> The necessary update in dt binding doc
> (Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt) is done
> in below patch and it's posted separately,
>
> "dt: bindings: add new dt entry for pre calibration in qcom,ath10k.txt"
>
> Raja Mani (3):
> ath10k: pass cal data location as an argument to
> ath10k_download_cal_{file|dt}
> ath10k: move cal data len to hw_params
> ath10k: incorporate qca4019 cal data download sequence
All three applied, thanks.
--
Kalle Valo