137 lines
3.0 KiB
C
137 lines
3.0 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/* Copyright (C) 2021 Linaro Ltd. */
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/device.h>
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#include <linux/sysfs.h>
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#include "ipa.h"
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#include "ipa_version.h"
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#include "ipa_sysfs.h"
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static const char *ipa_version_string(struct ipa *ipa)
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{
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switch (ipa->version) {
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case IPA_VERSION_3_0:
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return "3.0";
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case IPA_VERSION_3_1:
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return "3.1";
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case IPA_VERSION_3_5:
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return "3.5";
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case IPA_VERSION_3_5_1:
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return "3.5.1";
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case IPA_VERSION_4_0:
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return "4.0";
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case IPA_VERSION_4_1:
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return "4.1";
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case IPA_VERSION_4_2:
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return "4.2";
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case IPA_VERSION_4_5:
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return "4.5";
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case IPA_VERSION_4_7:
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return "4.7";
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case IPA_VERSION_4_9:
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return "4.9";
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case IPA_VERSION_4_11:
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return "4.11";
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default:
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return "0.0"; /* Won't happen (checked at probe time) */
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}
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}
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static ssize_t
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version_show(struct device *dev, struct device_attribute *attr, char *buf)
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{
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struct ipa *ipa = dev_get_drvdata(dev);
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return scnprintf(buf, PAGE_SIZE, "%s\n", ipa_version_string(ipa));
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}
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static DEVICE_ATTR_RO(version);
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static struct attribute *ipa_attrs[] = {
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&dev_attr_version.attr,
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NULL
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};
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const struct attribute_group ipa_attribute_group = {
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.attrs = ipa_attrs,
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};
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static const char *ipa_offload_string(struct ipa *ipa)
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{
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return ipa->version < IPA_VERSION_4_5 ? "MAPv4" : "MAPv5";
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}
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static ssize_t rx_offload_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct ipa *ipa = dev_get_drvdata(dev);
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return scnprintf(buf, PAGE_SIZE, "%s\n", ipa_offload_string(ipa));
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}
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static DEVICE_ATTR_RO(rx_offload);
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static ssize_t tx_offload_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct ipa *ipa = dev_get_drvdata(dev);
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return scnprintf(buf, PAGE_SIZE, "%s\n", ipa_offload_string(ipa));
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}
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static DEVICE_ATTR_RO(tx_offload);
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static struct attribute *ipa_feature_attrs[] = {
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&dev_attr_rx_offload.attr,
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&dev_attr_tx_offload.attr,
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NULL
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};
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const struct attribute_group ipa_feature_attribute_group = {
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.name = "feature",
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.attrs = ipa_feature_attrs,
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};
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static ssize_t
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ipa_endpoint_id_show(struct ipa *ipa, char *buf, enum ipa_endpoint_name name)
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{
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u32 endpoint_id = ipa->name_map[name]->endpoint_id;
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return scnprintf(buf, PAGE_SIZE, "%u\n", endpoint_id);
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}
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static ssize_t rx_endpoint_id_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct ipa *ipa = dev_get_drvdata(dev);
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return ipa_endpoint_id_show(ipa, buf, IPA_ENDPOINT_AP_MODEM_RX);
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}
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static DEVICE_ATTR_RO(rx_endpoint_id);
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static ssize_t tx_endpoint_id_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct ipa *ipa = dev_get_drvdata(dev);
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return ipa_endpoint_id_show(ipa, buf, IPA_ENDPOINT_AP_MODEM_TX);
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}
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static DEVICE_ATTR_RO(tx_endpoint_id);
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static struct attribute *ipa_modem_attrs[] = {
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&dev_attr_rx_endpoint_id.attr,
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&dev_attr_tx_endpoint_id.attr,
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NULL
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};
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const struct attribute_group ipa_modem_attribute_group = {
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.name = "modem",
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.attrs = ipa_modem_attrs,
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};
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