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/*
* Copyright (c) 2017, The Linux Foundation. All rights reserved.
*
* 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/device.h>
#include <linux/sysfs.h>
#include "wil6210.h"
#include "wmi.h"
static ssize_t
wil_ftm_txrx_offset_sysfs_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct wil6210_priv *wil = dev_get_drvdata(dev);
struct {
struct wmi_cmd_hdr wmi;
struct wmi_tof_get_tx_rx_offset_event evt;
} __packed reply;
int rc;
ssize_t len;
if (!test_bit(WMI_FW_CAPABILITY_FTM, wil->fw_capabilities))
return -EOPNOTSUPP;
memset(&reply, 0, sizeof(reply));
rc = wmi_call(wil, WMI_TOF_GET_TX_RX_OFFSET_CMDID, NULL, 0,
WMI_TOF_GET_TX_RX_OFFSET_EVENTID,
&reply, sizeof(reply), 100);
if (rc < 0)
return rc;
if (reply.evt.status) {
wil_err(wil, "get_tof_tx_rx_offset failed, error %d\n",
reply.evt.status);
return -EIO;
}
len = snprintf(buf, PAGE_SIZE, "%u %u\n",
le32_to_cpu(reply.evt.tx_offset),
le32_to_cpu(reply.evt.rx_offset));
return len;
}
static ssize_t
wil_ftm_txrx_offset_sysfs_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct wil6210_priv *wil = dev_get_drvdata(dev);
struct wmi_tof_set_tx_rx_offset_cmd cmd;
struct {
struct wmi_cmd_hdr wmi;
struct wmi_tof_set_tx_rx_offset_event evt;
} __packed reply;
unsigned int tx_offset, rx_offset;
int rc;
if (sscanf(buf, "%u %u", &tx_offset, &rx_offset) != 2)
return -EINVAL;
if (!test_bit(WMI_FW_CAPABILITY_FTM, wil->fw_capabilities))
return -EOPNOTSUPP;
memset(&cmd, 0, sizeof(cmd));
cmd.tx_offset = cpu_to_le32(tx_offset);
cmd.rx_offset = cpu_to_le32(rx_offset);
memset(&reply, 0, sizeof(reply));
rc = wmi_call(wil, WMI_TOF_SET_TX_RX_OFFSET_CMDID, &cmd, sizeof(cmd),
WMI_TOF_SET_TX_RX_OFFSET_EVENTID,
&reply, sizeof(reply), 100);
if (rc < 0)
return rc;
if (reply.evt.status) {
wil_err(wil, "set_tof_tx_rx_offset failed, error %d\n",
reply.evt.status);
return -EIO;
}
return count;
}
static DEVICE_ATTR(ftm_txrx_offset, 0644,
wil_ftm_txrx_offset_sysfs_show,
wil_ftm_txrx_offset_sysfs_store);
static ssize_t
wil_tt_sysfs_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct wil6210_priv *wil = dev_get_drvdata(dev);
ssize_t len;
struct wmi_tt_data tt_data;
int i, rc;
rc = wmi_get_tt_cfg(wil, &tt_data);
if (rc)
return rc;
len = snprintf(buf, PAGE_SIZE, " high max critical\n");
len += snprintf(buf + len, PAGE_SIZE - len, "bb: ");
if (tt_data.bb_enabled)
for (i = 0; i < WMI_NUM_OF_TT_ZONES; ++i)
len += snprintf(buf + len, PAGE_SIZE - len,
"%03d-%03d ",
tt_data.bb_zones[i].temperature_high,
tt_data.bb_zones[i].temperature_low);
else
len += snprintf(buf + len, PAGE_SIZE - len, "* disabled *");
len += snprintf(buf + len, PAGE_SIZE - len, "\nrf: ");
if (tt_data.rf_enabled)
for (i = 0; i < WMI_NUM_OF_TT_ZONES; ++i)
len += snprintf(buf + len, PAGE_SIZE - len,
"%03d-%03d ",
tt_data.rf_zones[i].temperature_high,
tt_data.rf_zones[i].temperature_low);
else
len += snprintf(buf + len, PAGE_SIZE - len, "* disabled *");
len += snprintf(buf + len, PAGE_SIZE - len, "\n");
return len;
}
static ssize_t
wil_tt_sysfs_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct wil6210_priv *wil = dev_get_drvdata(dev);
int i, rc = -EINVAL;
char *token, *dupbuf, *tmp;
struct wmi_tt_data tt_data = {
.bb_enabled = 0,
.rf_enabled = 0,
};
tmp = kmemdup(buf, count + 1, GFP_KERNEL);
if (!tmp)
return -ENOMEM;
tmp[count] = '\0';
dupbuf = tmp;
/* Format for writing is 12 unsigned bytes separated by spaces:
* <bb_z1_h> <bb_z1_l> <bb_z2_h> <bb_z2_l> <bb_z3_h> <bb_z3_l> \
* <rf_z1_h> <rf_z1_l> <rf_z2_h> <rf_z2_l> <rf_z3_h> <rf_z3_l>
* To disable thermal throttling for bb or for rf, use 0 for all
* its six set points.
*/
/* bb */
for (i = 0; i < WMI_NUM_OF_TT_ZONES; ++i) {
token = strsep(&dupbuf, " ");
if (!token)
goto out;
if (kstrtou8(token, 0, &tt_data.bb_zones[i].temperature_high))
goto out;
token = strsep(&dupbuf, " ");
if (!token)
goto out;
if (kstrtou8(token, 0, &tt_data.bb_zones[i].temperature_low))
goto out;
if (tt_data.bb_zones[i].temperature_high > 0 ||
tt_data.bb_zones[i].temperature_low > 0)
tt_data.bb_enabled = 1;
}
/* rf */
for (i = 0; i < WMI_NUM_OF_TT_ZONES; ++i) {
token = strsep(&dupbuf, " ");
if (!token)
goto out;
if (kstrtou8(token, 0, &tt_data.rf_zones[i].temperature_high))
goto out;
token = strsep(&dupbuf, " ");
if (!token)
goto out;
if (kstrtou8(token, 0, &tt_data.rf_zones[i].temperature_low))
goto out;
if (tt_data.rf_zones[i].temperature_high > 0 ||
tt_data.rf_zones[i].temperature_low > 0)
tt_data.rf_enabled = 1;
}
rc = wmi_set_tt_cfg(wil, &tt_data);
if (rc)
goto out;
rc = count;
out:
kfree(tmp);
return rc;
}
static DEVICE_ATTR(thermal_throttling, 0644,
wil_tt_sysfs_show, wil_tt_sysfs_store);
static struct attribute *wil6210_sysfs_entries[] = {
&dev_attr_ftm_txrx_offset.attr,
&dev_attr_thermal_throttling.attr,
NULL
};
static struct attribute_group wil6210_attribute_group = {
.name = "wil6210",
.attrs = wil6210_sysfs_entries,
};
int wil6210_sysfs_init(struct wil6210_priv *wil)
{
struct device *dev = wil_to_dev(wil);
int err;
err = sysfs_create_group(&dev->kobj, &wil6210_attribute_group);
if (err) {
wil_err(wil, "failed to create sysfs group: %d\n", err);
return err;
}
return 0;
}
void wil6210_sysfs_remove(struct wil6210_priv *wil)
{
struct device *dev = wil_to_dev(wil);
sysfs_remove_group(&dev->kobj, &wil6210_attribute_group);
}
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