| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| |
| #include <acpi/acpigen.h> |
| #include <boot/coreboot_tables.h> |
| #include <console/console.h> |
| #include <intelblocks/acpi.h> |
| |
| #include "chip.h" |
| |
| static const char *conn_acpi_name(const struct device *dev) |
| { |
| static char name[5]; |
| snprintf(name, sizeof(name), "CON%1X", dev->path.generic.id); |
| return name; |
| } |
| |
| static const char *orientation_to_str(enum type_c_orientation ori) |
| { |
| switch (ori) { |
| case TYPEC_ORIENTATION_NORMAL: |
| return "normal"; |
| case TYPEC_ORIENTATION_REVERSE: |
| return "reverse"; |
| case TYPEC_ORIENTATION_NONE: /* Intentional fallthrough */ |
| default: |
| return ""; |
| } |
| } |
| |
| static void conn_fill_ssdt(const struct device *dev) |
| { |
| struct drivers_intel_pmc_mux_conn_config *config = dev->chip_info; |
| struct acpi_dp *dsd; |
| const char *scope; |
| const char *name; |
| |
| /* Reference the existing scope and write CONx device */ |
| scope = acpi_device_scope(dev); |
| name = acpi_device_name(dev); |
| if (!scope || !name) |
| return; |
| |
| acpigen_write_scope(scope); |
| acpigen_write_device(name); |
| |
| acpigen_write_name_integer("_ADR", dev->path.generic.id); |
| |
| /* _DSD, Device-Specific Data */ |
| dsd = acpi_dp_new_table("_DSD"); |
| acpi_dp_add_integer(dsd, "usb2-port-number", config->usb2_port_number); |
| acpi_dp_add_integer(dsd, "usb3-port-number", config->usb3_port_number); |
| |
| /* |
| * The kernel assumes that these Type-C signals (SBUs and HSLs) follow the CC lines, |
| * unless they are explicitly called out otherwise. |
| */ |
| if (config->sbu_orientation != TYPEC_ORIENTATION_NONE) |
| acpi_dp_add_string(dsd, "sbu-orientation", |
| orientation_to_str(config->sbu_orientation)); |
| |
| if (config->hsl_orientation != TYPEC_ORIENTATION_NONE) |
| acpi_dp_add_string(dsd, "hsl-orientation", |
| orientation_to_str(config->hsl_orientation)); |
| |
| acpi_dp_write(dsd); |
| |
| acpigen_pop_len(); /* CONx Device */ |
| acpigen_pop_len(); /* Scope */ |
| |
| printk(BIOS_INFO, "%s: %s at %s\n", acpi_device_path(dev), dev->chip_ops->name, |
| dev_path(dev)); |
| } |
| |
| static struct device_operations conn_dev_ops = { |
| .read_resources = noop_read_resources, |
| .set_resources = noop_set_resources, |
| .acpi_name = conn_acpi_name, |
| .acpi_fill_ssdt = conn_fill_ssdt, |
| }; |
| |
| static void conn_enable(struct device *dev) |
| { |
| dev->ops = &conn_dev_ops; |
| } |
| |
| struct chip_operations drivers_intel_pmc_mux_conn_ops = { |
| CHIP_NAME("Intel PMC MUX CONN Driver") |
| .enable_dev = conn_enable, |
| }; |
| |
| bool intel_pmc_mux_conn_get_ports(const struct device *conn, unsigned int *usb2_port, |
| unsigned int *usb3_port) |
| { |
| const struct drivers_intel_pmc_mux_conn_config *mux_config; |
| |
| if (!conn->chip_info || conn->chip_ops != &drivers_intel_pmc_mux_conn_ops) |
| return false; |
| |
| mux_config = conn->chip_info; |
| *usb2_port = mux_config->usb2_port_number; |
| *usb3_port = mux_config->usb3_port_number; |
| |
| return true; |
| }; |