amd_sfh-objs += amd_sfh_client.o
amd_sfh-objs += amd_sfh_pcie.o
amd_sfh-objs += hid_descriptor/amd_sfh_hid_desc.o
+amd_sfh-objs += sfh1_1/amd_sfh_init.o
+amd_sfh-objs += sfh1_1/amd_sfh_interface.o
+amd_sfh-objs += sfh1_1/amd_sfh_desc.o
ccflags-y += -I $(srctree)/$(src)/
#include "amd_sfh_hid.h"
#define PCI_DEVICE_ID_AMD_MP2 0x15E4
+#define PCI_DEVICE_ID_AMD_MP2_1_1 0x164A
#define AMD_C2P_MSG(regno) (0x10500 + ((regno) * 4))
#define AMD_P2C_MSG(regno) (0x10680 + ((regno) * 4))
struct pci_dev *pdev;
struct amdtp_cl_data *cl_data;
void __iomem *mmio;
+ void __iomem *vsbase;
+ const struct amd_sfh1_1_ops *sfh1_1_ops;
struct amd_mp2_ops *mp2_ops;
struct amd_input_data in_data;
/* mp2 active control status */
#include <linux/slab.h>
#include "amd_sfh_pcie.h"
+#include "sfh1_1/amd_sfh_init.h"
#define DRIVER_NAME "pcie_mp2_amd"
#define DRIVER_DESC "AMD(R) PCIe MP2 Communication Driver"
if (!privdata->cl_data)
return -ENOMEM;
+ privdata->sfh1_1_ops = (const struct amd_sfh1_1_ops *)id->driver_data;
+ if (privdata->sfh1_1_ops) {
+ rc = privdata->sfh1_1_ops->init(privdata);
+ if (rc)
+ return rc;
+ goto init_done;
+ }
+
mp2_select_ops(privdata);
rc = amd_sfh_irq_init(privdata);
return rc;
}
+init_done:
amd_sfh_clear_intr(privdata);
return devm_add_action_or_reset(&pdev->dev, privdata->mp2_ops->remove, privdata);
static const struct pci_device_id amd_mp2_pci_tbl[] = {
{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_MP2) },
+ { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_MP2_1_1),
+ .driver_data = (kernel_ulong_t)&sfh1_1_ops },
{ }
};
MODULE_DEVICE_TABLE(pci, amd_mp2_pci_tbl);
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * AMD MP2 1.1 descriptor interfaces
+ *
+ * Copyright (c) 2022, Advanced Micro Devices, Inc.
+ * All Rights Reserved.
+ *
+ * Author: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
+ */
+
+#include <linux/hid-sensor-ids.h>
+
+#include "amd_sfh_interface.h"
+#include "../hid_descriptor/amd_sfh_hid_desc.h"
+#include "../hid_descriptor/amd_sfh_hid_report_desc.h"
+
+#define SENSOR_PROP_REPORTING_STATE_ALL_EVENTS_ENUM 0x41
+#define SENSOR_PROP_POWER_STATE_D0_FULL_POWER_ENUM 0x51
+#define HID_DEFAULT_REPORT_INTERVAL 0x50
+#define HID_DEFAULT_MIN_VALUE 0X7F
+#define HID_DEFAULT_MAX_VALUE 0x80
+#define HID_DEFAULT_SENSITIVITY 0x7F
+#define HID_USAGE_SENSOR_PROPERTY_CONNECTION_TYPE_PC_INTEGRATED_ENUM 0x01
+/* state enums */
+#define HID_USAGE_SENSOR_STATE_READY_ENUM 0x02
+#define HID_USAGE_SENSOR_STATE_INITIALIZING_ENUM 0x05
+#define HID_USAGE_SENSOR_EVENT_DATA_UPDATED_ENUM 0x04
+
+static int get_report_desc(int sensor_idx, u8 *rep_desc)
+{
+ switch (sensor_idx) {
+ case ACCEL_IDX: /* accelerometer */
+ memset(rep_desc, 0, sizeof(accel3_report_descriptor));
+ memcpy(rep_desc, accel3_report_descriptor,
+ sizeof(accel3_report_descriptor));
+ break;
+ case GYRO_IDX: /* gyroscope */
+ memset(rep_desc, 0, sizeof(gyro3_report_descriptor));
+ memcpy(rep_desc, gyro3_report_descriptor,
+ sizeof(gyro3_report_descriptor));
+ break;
+ case MAG_IDX: /* magnetometer */
+ memset(rep_desc, 0, sizeof(comp3_report_descriptor));
+ memcpy(rep_desc, comp3_report_descriptor,
+ sizeof(comp3_report_descriptor));
+ break;
+ case ALS_IDX: /* ambient light sensor */
+ memset(rep_desc, 0, sizeof(als_report_descriptor));
+ memcpy(rep_desc, als_report_descriptor,
+ sizeof(als_report_descriptor));
+ break;
+ case HPD_IDX: /* HPD sensor */
+ memset(rep_desc, 0, sizeof(hpd_report_descriptor));
+ memcpy(rep_desc, hpd_report_descriptor,
+ sizeof(hpd_report_descriptor));
+ break;
+ }
+ return 0;
+}
+
+static void get_common_features(struct common_feature_property *common, int report_id)
+{
+ common->report_id = report_id;
+ common->connection_type = HID_USAGE_SENSOR_PROPERTY_CONNECTION_TYPE_PC_INTEGRATED_ENUM;
+ common->report_state = SENSOR_PROP_REPORTING_STATE_ALL_EVENTS_ENUM;
+ common->power_state = SENSOR_PROP_POWER_STATE_D0_FULL_POWER_ENUM;
+ common->sensor_state = HID_USAGE_SENSOR_STATE_INITIALIZING_ENUM;
+ common->report_interval = HID_DEFAULT_REPORT_INTERVAL;
+}
+
+static u8 get_feature_rep(int sensor_idx, int report_id, u8 *feature_report)
+{
+ struct magno_feature_report magno_feature;
+ struct accel3_feature_report acc_feature;
+ struct gyro_feature_report gyro_feature;
+ struct hpd_feature_report hpd_feature;
+ struct als_feature_report als_feature;
+ u8 report_size = 0;
+
+ if (!feature_report)
+ return report_size;
+
+ switch (sensor_idx) {
+ case ACCEL_IDX: /* accelerometer */
+ get_common_features(&acc_feature.common_property, report_id);
+ acc_feature.accel_change_sesnitivity = HID_DEFAULT_SENSITIVITY;
+ acc_feature.accel_sensitivity_min = HID_DEFAULT_MIN_VALUE;
+ acc_feature.accel_sensitivity_max = HID_DEFAULT_MAX_VALUE;
+ memcpy(feature_report, &acc_feature, sizeof(acc_feature));
+ report_size = sizeof(acc_feature);
+ break;
+ case GYRO_IDX: /* gyroscope */
+ get_common_features(&gyro_feature.common_property, report_id);
+ gyro_feature.gyro_change_sesnitivity = HID_DEFAULT_SENSITIVITY;
+ gyro_feature.gyro_sensitivity_min = HID_DEFAULT_MIN_VALUE;
+ gyro_feature.gyro_sensitivity_max = HID_DEFAULT_MAX_VALUE;
+ memcpy(feature_report, &gyro_feature, sizeof(gyro_feature));
+ report_size = sizeof(gyro_feature);
+ break;
+ case MAG_IDX: /* magnetometer */
+ get_common_features(&magno_feature.common_property, report_id);
+ magno_feature.magno_headingchange_sensitivity = HID_DEFAULT_SENSITIVITY;
+ magno_feature.heading_min = HID_DEFAULT_MIN_VALUE;
+ magno_feature.heading_max = HID_DEFAULT_MAX_VALUE;
+ magno_feature.flux_change_sensitivity = HID_DEFAULT_MIN_VALUE;
+ magno_feature.flux_min = HID_DEFAULT_MIN_VALUE;
+ magno_feature.flux_max = HID_DEFAULT_MAX_VALUE;
+ memcpy(feature_report, &magno_feature, sizeof(magno_feature));
+ report_size = sizeof(magno_feature);
+ break;
+ case ALS_IDX: /* ambient light sensor */
+ get_common_features(&als_feature.common_property, report_id);
+ als_feature.als_change_sesnitivity = HID_DEFAULT_SENSITIVITY;
+ als_feature.als_sensitivity_min = HID_DEFAULT_MIN_VALUE;
+ als_feature.als_sensitivity_max = HID_DEFAULT_MAX_VALUE;
+ memcpy(feature_report, &als_feature, sizeof(als_feature));
+ report_size = sizeof(als_feature);
+ break;
+ case HPD_IDX: /* human presence detection sensor */
+ get_common_features(&hpd_feature.common_property, report_id);
+ memcpy(feature_report, &hpd_feature, sizeof(hpd_feature));
+ report_size = sizeof(hpd_feature);
+ break;
+ }
+ return report_size;
+}
+
+static void get_common_inputs(struct common_input_property *common, int report_id)
+{
+ common->report_id = report_id;
+ common->sensor_state = HID_USAGE_SENSOR_STATE_READY_ENUM;
+ common->event_type = HID_USAGE_SENSOR_EVENT_DATA_UPDATED_ENUM;
+}
+
+static int float_to_int(u32 float32)
+{
+ int fraction, shift, mantissa, sign, exp, zeropre;
+
+ mantissa = float32 & GENMASK(22, 0);
+ sign = (float32 & BIT(31)) ? -1 : 1;
+ exp = (float32 & ~BIT(31)) >> 23;
+
+ if (!exp && !mantissa)
+ return 0;
+
+ exp -= 127;
+ if (exp < 0) {
+ exp = -exp;
+ zeropre = (((BIT(23) + mantissa) * 100) >> 23) >> exp;
+ return zeropre >= 50 ? sign : 0;
+ }
+
+ shift = 23 - exp;
+ float32 = BIT(exp) + (mantissa >> shift);
+ fraction = mantissa & GENMASK(shift - 1, 0);
+
+ return (((fraction * 100) >> shift) >= 50) ? sign * (float32 + 1) : sign * float32;
+}
+
+static u8 get_input_rep(u8 current_index, int sensor_idx, int report_id,
+ struct amd_input_data *in_data)
+{
+ struct amd_mp2_dev *mp2 = container_of(in_data, struct amd_mp2_dev, in_data);
+ u8 *input_report = in_data->input_report[current_index];
+ struct magno_input_report magno_input;
+ struct accel3_input_report acc_input;
+ struct gyro_input_report gyro_input;
+ struct als_input_report als_input;
+ struct hpd_input_report hpd_input;
+ struct sfh_accel_data accel_data;
+ struct sfh_gyro_data gyro_data;
+ struct sfh_mag_data mag_data;
+ struct sfh_als_data als_data;
+ struct hpd_status hpdstatus;
+ void __iomem *sensoraddr;
+ u8 report_size = 0;
+
+ if (!input_report)
+ return report_size;
+
+ switch (sensor_idx) {
+ case ACCEL_IDX: /* accelerometer */
+ sensoraddr = mp2->vsbase + (ACCEL_IDX * SENSOR_DATA_MEM_SIZE_DEFAULT) +
+ OFFSET_SENSOR_DATA_DEFAULT;
+ memcpy_fromio(&accel_data, sensoraddr, sizeof(struct sfh_accel_data));
+ get_common_inputs(&acc_input.common_property, report_id);
+ acc_input.in_accel_x_value = float_to_int(accel_data.acceldata.x) / 100;
+ acc_input.in_accel_y_value = float_to_int(accel_data.acceldata.y) / 100;
+ acc_input.in_accel_z_value = float_to_int(accel_data.acceldata.z) / 100;
+ memcpy(input_report, &acc_input, sizeof(acc_input));
+ report_size = sizeof(acc_input);
+ break;
+ case GYRO_IDX: /* gyroscope */
+ sensoraddr = mp2->vsbase + (GYRO_IDX * SENSOR_DATA_MEM_SIZE_DEFAULT) +
+ OFFSET_SENSOR_DATA_DEFAULT;
+ memcpy_fromio(&gyro_data, sensoraddr, sizeof(struct sfh_gyro_data));
+ get_common_inputs(&gyro_input.common_property, report_id);
+ gyro_input.in_angel_x_value = float_to_int(gyro_data.gyrodata.x) / 1000;
+ gyro_input.in_angel_y_value = float_to_int(gyro_data.gyrodata.y) / 1000;
+ gyro_input.in_angel_z_value = float_to_int(gyro_data.gyrodata.z) / 1000;
+ memcpy(input_report, &gyro_input, sizeof(gyro_input));
+ report_size = sizeof(gyro_input);
+ break;
+ case MAG_IDX: /* magnetometer */
+ sensoraddr = mp2->vsbase + (MAG_IDX * SENSOR_DATA_MEM_SIZE_DEFAULT) +
+ OFFSET_SENSOR_DATA_DEFAULT;
+ memcpy_fromio(&mag_data, sensoraddr, sizeof(struct sfh_mag_data));
+ get_common_inputs(&magno_input.common_property, report_id);
+ magno_input.in_magno_x = float_to_int(mag_data.magdata.x) / 100;
+ magno_input.in_magno_y = float_to_int(mag_data.magdata.y) / 100;
+ magno_input.in_magno_z = float_to_int(mag_data.magdata.z) / 100;
+ magno_input.in_magno_accuracy = mag_data.accuracy / 100;
+ memcpy(input_report, &magno_input, sizeof(magno_input));
+ report_size = sizeof(magno_input);
+ break;
+ case ALS_IDX:
+ sensoraddr = mp2->vsbase + (ALS_IDX * SENSOR_DATA_MEM_SIZE_DEFAULT) +
+ OFFSET_SENSOR_DATA_DEFAULT;
+ memcpy_fromio(&als_data, sensoraddr, sizeof(struct sfh_als_data));
+ get_common_inputs(&als_input.common_property, report_id);
+ als_input.illuminance_value = als_data.lux;
+ report_size = sizeof(als_input);
+ memcpy(input_report, &als_input, sizeof(als_input));
+ break;
+ case HPD_IDX:
+ get_common_inputs(&hpd_input.common_property, report_id);
+ hpdstatus.val = readl(mp2->mmio + AMD_C2P_MSG(4));
+ hpd_input.human_presence = hpdstatus.shpd.presence;
+ report_size = sizeof(hpd_input);
+ memcpy(input_report, &hpd_input, sizeof(hpd_input));
+ break;
+ }
+ return report_size;
+}
+
+static u32 get_desc_size(int sensor_idx, int descriptor_name)
+{
+ switch (sensor_idx) {
+ case ACCEL_IDX:
+ switch (descriptor_name) {
+ case descr_size:
+ return sizeof(accel3_report_descriptor);
+ case input_size:
+ return sizeof(struct accel3_input_report);
+ case feature_size:
+ return sizeof(struct accel3_feature_report);
+ }
+ break;
+ case GYRO_IDX:
+ switch (descriptor_name) {
+ case descr_size:
+ return sizeof(gyro3_report_descriptor);
+ case input_size:
+ return sizeof(struct gyro_input_report);
+ case feature_size:
+ return sizeof(struct gyro_feature_report);
+ }
+ break;
+ case MAG_IDX:
+ switch (descriptor_name) {
+ case descr_size:
+ return sizeof(comp3_report_descriptor);
+ case input_size:
+ return sizeof(struct magno_input_report);
+ case feature_size:
+ return sizeof(struct magno_feature_report);
+ }
+ break;
+ case ALS_IDX:
+ switch (descriptor_name) {
+ case descr_size:
+ return sizeof(als_report_descriptor);
+ case input_size:
+ return sizeof(struct als_input_report);
+ case feature_size:
+ return sizeof(struct als_feature_report);
+ }
+ break;
+ case HPD_IDX:
+ switch (descriptor_name) {
+ case descr_size:
+ return sizeof(hpd_report_descriptor);
+ case input_size:
+ return sizeof(struct hpd_input_report);
+ case feature_size:
+ return sizeof(struct hpd_feature_report);
+ }
+ break;
+ }
+
+ return 0;
+}
+
+void amd_sfh1_1_set_desc_ops(struct amd_mp2_ops *mp2_ops)
+{
+ mp2_ops->get_rep_desc = get_report_desc;
+ mp2_ops->get_feat_rep = get_feature_rep;
+ mp2_ops->get_desc_sz = get_desc_size;
+ mp2_ops->get_in_rep = get_input_rep;
+}
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * AMD MP2 1.1 communication driver
+ *
+ * Copyright (c) 2022, Advanced Micro Devices, Inc.
+ * All Rights Reserved.
+ *
+ * Author: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
+ */
+
+#include <linux/delay.h>
+#include <linux/hid.h>
+
+#include "amd_sfh_init.h"
+#include "amd_sfh_interface.h"
+#include "../hid_descriptor/amd_sfh_hid_desc.h"
+
+static int amd_sfh_get_sensor_num(struct amd_mp2_dev *mp2, u8 *sensor_id)
+{
+ struct sfh_sensor_list *slist;
+ struct sfh_base_info binfo;
+ int num_of_sensors = 0;
+ int i;
+
+ memcpy_fromio(&binfo, mp2->vsbase, sizeof(struct sfh_base_info));
+ slist = &binfo.sbase.s_list;
+
+ for (i = 0; i < MAX_IDX; i++) {
+ switch (i) {
+ case ACCEL_IDX:
+ case GYRO_IDX:
+ case MAG_IDX:
+ case ALS_IDX:
+ case HPD_IDX:
+ if (BIT(i) & slist->sl.sensors)
+ sensor_id[num_of_sensors++] = i;
+ break;
+ }
+ }
+
+ return num_of_sensors;
+}
+
+static u32 amd_sfh_wait_for_response(struct amd_mp2_dev *mp2, u8 sid, u32 cmd_id)
+{
+ if (mp2->mp2_ops->response)
+ return mp2->mp2_ops->response(mp2, sid, cmd_id);
+
+ return 0;
+}
+
+static const char *get_sensor_name(int idx)
+{
+ switch (idx) {
+ case ACCEL_IDX:
+ return "accelerometer";
+ case GYRO_IDX:
+ return "gyroscope";
+ case MAG_IDX:
+ return "magnetometer";
+ case ALS_IDX:
+ return "ALS";
+ case HPD_IDX:
+ return "HPD";
+ default:
+ return "unknown sensor type";
+ }
+}
+
+static int amd_sfh_hid_client_deinit(struct amd_mp2_dev *privdata)
+{
+ struct amdtp_cl_data *cl_data = privdata->cl_data;
+ int i, status;
+
+ for (i = 0; i < cl_data->num_hid_devices; i++) {
+ if (cl_data->sensor_sts[i] == SENSOR_ENABLED) {
+ privdata->mp2_ops->stop(privdata, cl_data->sensor_idx[i]);
+ status = amd_sfh_wait_for_response
+ (privdata, cl_data->sensor_idx[i], DISABLE_SENSOR);
+ if (status == 0)
+ cl_data->sensor_sts[i] = SENSOR_DISABLED;
+ dev_dbg(&privdata->pdev->dev, "stopping sid 0x%x (%s) status 0x%x\n",
+ cl_data->sensor_idx[i], get_sensor_name(cl_data->sensor_idx[i]),
+ cl_data->sensor_sts[i]);
+ }
+ }
+
+ cancel_delayed_work_sync(&cl_data->work);
+ cancel_delayed_work_sync(&cl_data->work_buffer);
+ amdtp_hid_remove(cl_data);
+
+ return 0;
+}
+
+static int amd_sfh1_1_hid_client_init(struct amd_mp2_dev *privdata)
+{
+ struct amd_input_data *in_data = &privdata->in_data;
+ struct amdtp_cl_data *cl_data = privdata->cl_data;
+ struct amd_mp2_ops *mp2_ops = privdata->mp2_ops;
+ struct amd_mp2_sensor_info info;
+ struct request_list *req_list;
+ u32 feature_report_size;
+ u32 input_report_size;
+ struct device *dev;
+ int rc, i, status;
+ u8 cl_idx;
+
+ req_list = &cl_data->req_list;
+ dev = &privdata->pdev->dev;
+ amd_sfh1_1_set_desc_ops(mp2_ops);
+
+ cl_data->num_hid_devices = amd_sfh_get_sensor_num(privdata, &cl_data->sensor_idx[0]);
+
+ INIT_DELAYED_WORK(&cl_data->work, amd_sfh_work);
+ INIT_DELAYED_WORK(&cl_data->work_buffer, amd_sfh_work_buffer);
+ INIT_LIST_HEAD(&req_list->list);
+ cl_data->in_data = in_data;
+
+ for (i = 0; i < cl_data->num_hid_devices; i++) {
+ cl_data->sensor_sts[i] = SENSOR_DISABLED;
+ cl_data->sensor_requested_cnt[i] = 0;
+ cl_data->cur_hid_dev = i;
+ cl_idx = cl_data->sensor_idx[i];
+
+ cl_data->report_descr_sz[i] = mp2_ops->get_desc_sz(cl_idx, descr_size);
+ if (!cl_data->report_descr_sz[i]) {
+ rc = -EINVAL;
+ goto cleanup;
+ }
+ feature_report_size = mp2_ops->get_desc_sz(cl_idx, feature_size);
+ if (!feature_report_size) {
+ rc = -EINVAL;
+ goto cleanup;
+ }
+ input_report_size = mp2_ops->get_desc_sz(cl_idx, input_size);
+ if (!input_report_size) {
+ rc = -EINVAL;
+ goto cleanup;
+ }
+ cl_data->feature_report[i] = devm_kzalloc(dev, feature_report_size, GFP_KERNEL);
+ if (!cl_data->feature_report[i]) {
+ rc = -ENOMEM;
+ goto cleanup;
+ }
+ in_data->input_report[i] = devm_kzalloc(dev, input_report_size, GFP_KERNEL);
+ if (!in_data->input_report[i]) {
+ rc = -ENOMEM;
+ goto cleanup;
+ }
+
+ info.sensor_idx = cl_idx;
+
+ cl_data->report_descr[i] =
+ devm_kzalloc(dev, cl_data->report_descr_sz[i], GFP_KERNEL);
+ if (!cl_data->report_descr[i]) {
+ rc = -ENOMEM;
+ goto cleanup;
+ }
+ rc = mp2_ops->get_rep_desc(cl_idx, cl_data->report_descr[i]);
+ if (rc)
+ return rc;
+
+ writel(0, privdata->mmio + AMD_P2C_MSG(0));
+ mp2_ops->start(privdata, info);
+ status = amd_sfh_wait_for_response
+ (privdata, cl_data->sensor_idx[i], ENABLE_SENSOR);
+
+ status = (status == 0) ? SENSOR_ENABLED : SENSOR_DISABLED;
+
+ if (status == SENSOR_ENABLED) {
+ cl_data->sensor_sts[i] = SENSOR_ENABLED;
+ rc = amdtp_hid_probe(i, cl_data);
+ if (rc) {
+ mp2_ops->stop(privdata, cl_data->sensor_idx[i]);
+ status = amd_sfh_wait_for_response
+ (privdata, cl_data->sensor_idx[i], DISABLE_SENSOR);
+ if (status == 0)
+ status = SENSOR_DISABLED;
+ if (status != SENSOR_ENABLED)
+ cl_data->sensor_sts[i] = SENSOR_DISABLED;
+ dev_dbg(dev, "sid 0x%x (%s) status 0x%x\n",
+ cl_data->sensor_idx[i],
+ get_sensor_name(cl_data->sensor_idx[i]),
+ cl_data->sensor_sts[i]);
+ goto cleanup;
+ }
+ }
+ dev_dbg(dev, "sid 0x%x (%s) status 0x%x\n",
+ cl_data->sensor_idx[i], get_sensor_name(cl_data->sensor_idx[i]),
+ cl_data->sensor_sts[i]);
+ }
+
+ schedule_delayed_work(&cl_data->work_buffer, msecs_to_jiffies(AMD_SFH_IDLE_LOOP));
+ return 0;
+
+cleanup:
+ amd_sfh_hid_client_deinit(privdata);
+ for (i = 0; i < cl_data->num_hid_devices; i++) {
+ devm_kfree(dev, cl_data->feature_report[i]);
+ devm_kfree(dev, in_data->input_report[i]);
+ devm_kfree(dev, cl_data->report_descr[i]);
+ }
+ return rc;
+}
+
+static void amd_sfh_resume(struct amd_mp2_dev *mp2)
+{
+ struct amdtp_cl_data *cl_data = mp2->cl_data;
+ struct amd_mp2_sensor_info info;
+ int i, status;
+
+ for (i = 0; i < cl_data->num_hid_devices; i++) {
+ if (cl_data->sensor_sts[i] == SENSOR_DISABLED) {
+ info.sensor_idx = cl_data->sensor_idx[i];
+ mp2->mp2_ops->start(mp2, info);
+ status = amd_sfh_wait_for_response
+ (mp2, cl_data->sensor_idx[i], ENABLE_SENSOR);
+ if (status == 0)
+ status = SENSOR_ENABLED;
+ if (status == SENSOR_ENABLED)
+ cl_data->sensor_sts[i] = SENSOR_ENABLED;
+ dev_dbg(&mp2->pdev->dev, "resume sid 0x%x (%s) status 0x%x\n",
+ cl_data->sensor_idx[i], get_sensor_name(cl_data->sensor_idx[i]),
+ cl_data->sensor_sts[i]);
+ }
+ }
+
+ schedule_delayed_work(&cl_data->work_buffer, msecs_to_jiffies(AMD_SFH_IDLE_LOOP));
+ amd_sfh_clear_intr(mp2);
+}
+
+static void amd_sfh_suspend(struct amd_mp2_dev *mp2)
+{
+ struct amdtp_cl_data *cl_data = mp2->cl_data;
+ int i, status;
+
+ for (i = 0; i < cl_data->num_hid_devices; i++) {
+ if (cl_data->sensor_idx[i] != HPD_IDX &&
+ cl_data->sensor_sts[i] == SENSOR_ENABLED) {
+ mp2->mp2_ops->stop(mp2, cl_data->sensor_idx[i]);
+ status = amd_sfh_wait_for_response
+ (mp2, cl_data->sensor_idx[i], DISABLE_SENSOR);
+ if (status == 0)
+ status = SENSOR_DISABLED;
+ if (status != SENSOR_ENABLED)
+ cl_data->sensor_sts[i] = SENSOR_DISABLED;
+ dev_dbg(&mp2->pdev->dev, "suspend sid 0x%x (%s) status 0x%x\n",
+ cl_data->sensor_idx[i], get_sensor_name(cl_data->sensor_idx[i]),
+ cl_data->sensor_sts[i]);
+ }
+ }
+
+ cancel_delayed_work_sync(&cl_data->work_buffer);
+ amd_sfh_clear_intr(mp2);
+}
+
+static void amd_mp2_pci_remove(void *privdata)
+{
+ struct amd_mp2_dev *mp2 = privdata;
+
+ amd_sfh_hid_client_deinit(privdata);
+ mp2->mp2_ops->stop_all(mp2);
+ pci_intx(mp2->pdev, false);
+ amd_sfh_clear_intr(mp2);
+}
+
+static void amd_sfh_set_ops(struct amd_mp2_dev *mp2)
+{
+ struct amd_mp2_ops *mp2_ops;
+
+ sfh_interface_init(mp2);
+ mp2_ops = mp2->mp2_ops;
+ mp2_ops->clear_intr = amd_sfh_clear_intr_v2,
+ mp2_ops->init_intr = amd_sfh_irq_init_v2,
+ mp2_ops->suspend = amd_sfh_suspend;
+ mp2_ops->resume = amd_sfh_resume;
+ mp2_ops->remove = amd_mp2_pci_remove;
+}
+
+int amd_sfh1_1_init(struct amd_mp2_dev *mp2)
+{
+ u32 phy_base = readl(mp2->mmio + AMD_C2P_MSG(22));
+ struct device *dev = &mp2->pdev->dev;
+ struct sfh_base_info binfo;
+ int rc;
+
+ phy_base <<= 21;
+ if (!devm_request_mem_region(dev, phy_base, 128 * 1024, "amd_sfh")) {
+ dev_err(dev, "can't reserve mmio registers\n");
+ return -ENOMEM;
+ }
+
+ mp2->vsbase = devm_ioremap(dev, phy_base, 128 * 1024);
+ if (!mp2->vsbase) {
+ dev_err(dev, "failed to remap vsbase\n");
+ return -ENOMEM;
+ }
+
+ /* Before accessing give time for SFH firmware for processing configuration */
+ msleep(5000);
+
+ memcpy_fromio(&binfo, mp2->vsbase, sizeof(struct sfh_base_info));
+ if (binfo.sbase.fw_info.fw_ver == 0 || binfo.sbase.s_list.sl.sensors == 0) {
+ dev_err(dev, "failed to get sensors\n");
+ return -EOPNOTSUPP;
+ }
+ dev_dbg(dev, "firmware version 0x%x\n", binfo.sbase.fw_info.fw_ver);
+
+ amd_sfh_set_ops(mp2);
+
+ rc = amd_sfh_irq_init(mp2);
+ if (rc) {
+ dev_err(dev, "amd_sfh_irq_init failed\n");
+ return rc;
+ }
+
+ rc = amd_sfh1_1_hid_client_init(mp2);
+ if (rc) {
+ dev_err(dev, "amd_sfh1_1_hid_client_init failed\n");
+ return rc;
+ }
+
+ return rc;
+}
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * AMD MP2 1.1 initialization structures
+ *
+ * Copyright (c) 2022, Advanced Micro Devices, Inc.
+ * All Rights Reserved.
+ *
+ * Author: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
+ */
+
+#ifndef AMD_SFH_INIT_H
+#define AMD_SFH_INIT_H
+
+#include "../amd_sfh_common.h"
+
+struct amd_sfh1_1_ops {
+ int (*init)(struct amd_mp2_dev *mp2);
+};
+
+int amd_sfh1_1_init(struct amd_mp2_dev *mp2);
+
+static const struct amd_sfh1_1_ops __maybe_unused sfh1_1_ops = {
+ .init = amd_sfh1_1_init,
+};
+
+#endif
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * AMD MP2 1.1 communication interfaces
+ *
+ * Copyright (c) 2022, Advanced Micro Devices, Inc.
+ * All Rights Reserved.
+ *
+ * Author: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
+ */
+#include <linux/iopoll.h>
+#include "amd_sfh_interface.h"
+
+static int amd_sfh_wait_response(struct amd_mp2_dev *mp2, u8 sid, u32 cmd_id)
+{
+ struct sfh_cmd_response cmd_resp;
+
+ /* Get response with status within a max of 1600 ms timeout */
+ if (!readl_poll_timeout(mp2->mmio + AMD_P2C_MSG(0), cmd_resp.resp,
+ (cmd_resp.response.response == 0 &&
+ cmd_resp.response.cmd_id == cmd_id && (sid == 0xff ||
+ cmd_resp.response.sensor_id == sid)), 500, 1600000))
+ return cmd_resp.response.response;
+
+ return -1;
+}
+
+static void amd_start_sensor(struct amd_mp2_dev *privdata, struct amd_mp2_sensor_info info)
+{
+ struct sfh_cmd_base cmd_base;
+
+ cmd_base.ul = 0;
+ cmd_base.cmd.cmd_id = ENABLE_SENSOR;
+ cmd_base.cmd.intr_disable = 0;
+ cmd_base.cmd.sensor_id = info.sensor_idx;
+
+ writel(cmd_base.ul, privdata->mmio + AMD_C2P_MSG(0));
+}
+
+static void amd_stop_sensor(struct amd_mp2_dev *privdata, u16 sensor_idx)
+{
+ struct sfh_cmd_base cmd_base;
+
+ cmd_base.ul = 0;
+ cmd_base.cmd.cmd_id = DISABLE_SENSOR;
+ cmd_base.cmd.intr_disable = 0;
+ cmd_base.cmd.sensor_id = sensor_idx;
+
+ writeq(0x0, privdata->mmio + AMD_C2P_MSG(1));
+ writel(cmd_base.ul, privdata->mmio + AMD_C2P_MSG(0));
+}
+
+static void amd_stop_all_sensor(struct amd_mp2_dev *privdata)
+{
+ struct sfh_cmd_base cmd_base;
+
+ cmd_base.ul = 0;
+ cmd_base.cmd.cmd_id = STOP_ALL_SENSORS;
+ cmd_base.cmd.intr_disable = 0;
+
+ writel(cmd_base.ul, privdata->mmio + AMD_C2P_MSG(0));
+}
+
+static struct amd_mp2_ops amd_sfh_ops = {
+ .start = amd_start_sensor,
+ .stop = amd_stop_sensor,
+ .stop_all = amd_stop_all_sensor,
+ .response = amd_sfh_wait_response,
+};
+
+void sfh_interface_init(struct amd_mp2_dev *mp2)
+{
+ mp2->mp2_ops = &amd_sfh_ops;
+}
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * AMD MP2 1.1 communication interfaces
+ *
+ * Copyright (c) 2022, Advanced Micro Devices, Inc.
+ * All Rights Reserved.
+ *
+ * Author: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
+ */
+
+#ifndef AMD_SFH_INTERFACE_H
+#define AMD_SFH_INTERFACE_H
+
+#include "../amd_sfh_common.h"
+
+#define SENSOR_DATA_MEM_SIZE_DEFAULT 256
+#define TOTAL_STATIC_MEM_DEFAULT 1024
+#define OFFSET_SFH_INFO_BASE_DEFAULT 0
+#define OFFSET_SENSOR_DATA_DEFAULT (OFFSET_SFH_INFO_BASE_DEFAULT + \
+ TOTAL_STATIC_MEM_DEFAULT)
+enum sensor_index {
+ ACCEL_IDX,
+ GYRO_IDX,
+ MAG_IDX,
+ ALS_IDX = 4,
+ HPD_IDX = 5,
+ MAX_IDX = 15,
+};
+
+struct sfh_cmd_base {
+ union {
+ u32 ul;
+ struct {
+ u32 sensor_id : 4;
+ u32 cmd_id : 4;
+ u32 sub_cmd_id : 6;
+ u32 length : 12;
+ u32 rsvd : 5;
+ u32 intr_disable : 1;
+ } cmd;
+ };
+};
+
+struct sfh_cmd_response {
+ union {
+ u32 resp;
+ struct {
+ u32 response : 8;
+ u32 sensor_id : 4;
+ u32 cmd_id : 4;
+ u32 sub_cmd : 6;
+ u32 rsvd2 : 10;
+ } response;
+ };
+};
+
+struct sfh_platform_info {
+ union {
+ u32 pi;
+ struct {
+ u32 cust_id : 16;
+ u32 plat_id : 6;
+ u32 interface_id : 4;
+ u32 rsvd : 6;
+ } pinfo;
+ };
+};
+
+struct sfh_firmware_info {
+ union {
+ u32 fw_ver;
+ struct {
+ u32 minor_rev : 8;
+ u32 major_rev : 8;
+ u32 minor_ver : 8;
+ u32 major_ver : 8;
+ } fver;
+ };
+};
+
+struct sfh_sensor_list {
+ union {
+ u32 slist;
+ struct {
+ u32 sensors : 16;
+ u32 rsvd : 16;
+ } sl;
+ };
+};
+
+struct sfh_base_info {
+ union {
+ u32 sfh_base[24];
+ struct {
+ struct sfh_platform_info plat_info;
+ struct sfh_firmware_info fw_info;
+ struct sfh_sensor_list s_list;
+ } sbase;
+ };
+};
+
+struct sfh_common_data {
+ u64 timestamp;
+ u32 intr_cnt;
+ u32 featvalid : 16;
+ u32 rsvd : 13;
+ u32 sensor_state : 3;
+};
+
+struct sfh_float32 {
+ u32 x;
+ u32 y;
+ u32 z;
+};
+
+struct sfh_accel_data {
+ struct sfh_common_data commondata;
+ struct sfh_float32 acceldata;
+ u32 accelstatus;
+};
+
+struct sfh_gyro_data {
+ struct sfh_common_data commondata;
+ struct sfh_float32 gyrodata;
+ u32 result;
+};
+
+struct sfh_mag_data {
+ struct sfh_common_data commondata;
+ struct sfh_float32 magdata;
+ u32 accuracy;
+};
+
+struct sfh_als_data {
+ struct sfh_common_data commondata;
+ u16 lux;
+};
+
+struct hpd_status {
+ union {
+ struct {
+ u32 distance : 16;
+ u32 probablity : 8;
+ u32 presence : 2;
+ u32 rsvd : 5;
+ u32 state : 1;
+ } shpd;
+ u32 val;
+ };
+};
+
+void sfh_interface_init(struct amd_mp2_dev *mp2);
+void amd_sfh1_1_set_desc_ops(struct amd_mp2_ops *mp2_ops);
+#endif
projects / platform / kernel / linux-rpi.git / commitdiff