From 93ce5e0231d79189be4d9e5f9295807b18941419 Mon Sep 17 00:00:00 2001 From: Basavaraj Natikar Date: Tue, 12 Jul 2022 23:48:36 +0530 Subject: [PATCH] HID: amd_sfh: Implement SFH1.1 functionality Newer AMD SOCs use SFH1.1 memory access with new PCI-id. Hence add new sfh1_1 sub directory to implement SFH1.1 functionality by defining new PCI id, interface functions, descriptor functions and handlers which invokes sfh1.1. Signed-off-by: Basavaraj Natikar Signed-off-by: Jiri Kosina --- drivers/hid/amd-sfh-hid/Makefile | 3 + drivers/hid/amd-sfh-hid/amd_sfh_common.h | 3 + drivers/hid/amd-sfh-hid/amd_sfh_pcie.c | 12 + drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_desc.c | 300 ++++++++++++++++ drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_init.c | 324 ++++++++++++++++++ drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_init.h | 26 ++ .../amd-sfh-hid/sfh1_1/amd_sfh_interface.c | 73 ++++ .../amd-sfh-hid/sfh1_1/amd_sfh_interface.h | 154 +++++++++ 8 files changed, 895 insertions(+) create mode 100644 drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_desc.c create mode 100644 drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_init.c create mode 100644 drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_init.h create mode 100644 drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_interface.c create mode 100644 drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_interface.h diff --git a/drivers/hid/amd-sfh-hid/Makefile b/drivers/hid/amd-sfh-hid/Makefile index 35e704da561247..0222170ab7ad73 100644 --- a/drivers/hid/amd-sfh-hid/Makefile +++ b/drivers/hid/amd-sfh-hid/Makefile @@ -9,5 +9,8 @@ amd_sfh-objs := amd_sfh_hid.o 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)/ diff --git a/drivers/hid/amd-sfh-hid/amd_sfh_common.h b/drivers/hid/amd-sfh-hid/amd_sfh_common.h index 1efb72ec116fc8..2643bb14fee27c 100644 --- a/drivers/hid/amd-sfh-hid/amd_sfh_common.h +++ b/drivers/hid/amd-sfh-hid/amd_sfh_common.h @@ -14,6 +14,7 @@ #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)) @@ -40,6 +41,8 @@ struct amd_mp2_dev { 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 */ diff --git a/drivers/hid/amd-sfh-hid/amd_sfh_pcie.c b/drivers/hid/amd-sfh-hid/amd_sfh_pcie.c index 1425b57f358030..c9fb844e336070 100644 --- a/drivers/hid/amd-sfh-hid/amd_sfh_pcie.c +++ b/drivers/hid/amd-sfh-hid/amd_sfh_pcie.c @@ -19,6 +19,7 @@ #include #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" @@ -318,6 +319,14 @@ static int amd_mp2_pci_probe(struct pci_dev *pdev, const struct pci_device_id *i 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); @@ -333,6 +342,7 @@ static int amd_mp2_pci_probe(struct pci_dev *pdev, const struct pci_device_id *i return rc; } +init_done: amd_sfh_clear_intr(privdata); return devm_add_action_or_reset(&pdev->dev, privdata->mp2_ops->remove, privdata); @@ -361,6 +371,8 @@ static SIMPLE_DEV_PM_OPS(amd_mp2_pm_ops, amd_mp2_pci_suspend, 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); diff --git a/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_desc.c b/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_desc.c new file mode 100644 index 00000000000000..0609fea581c961 --- /dev/null +++ b/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_desc.c @@ -0,0 +1,300 @@ +// 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 + */ + +#include + +#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; +} diff --git a/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_init.c b/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_init.c new file mode 100644 index 00000000000000..70436f9fad2f21 --- /dev/null +++ b/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_init.c @@ -0,0 +1,324 @@ +// 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 + */ + +#include +#include + +#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; +} diff --git a/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_init.h b/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_init.h new file mode 100644 index 00000000000000..21c44990bbebad --- /dev/null +++ b/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_init.h @@ -0,0 +1,26 @@ +/* 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 + */ + +#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 diff --git a/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_interface.c b/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_interface.c new file mode 100644 index 00000000000000..14a1578055b6d8 --- /dev/null +++ b/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_interface.c @@ -0,0 +1,73 @@ +// 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 + */ +#include +#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; +} diff --git a/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_interface.h b/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_interface.h new file mode 100644 index 00000000000000..ae47a369dc05a5 --- /dev/null +++ b/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_interface.h @@ -0,0 +1,154 @@ +/* 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 + */ + +#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