src/ec/google/wilco/chip.c - coreboot - Gitiles

 /* SPDX-License-Identifier: GPL-2.0-only */

 #include <acpi/acpi_device.h>
 #include <acpi/acpi.h>
 #include <acpi/acpigen.h>
 #include <bootstate.h>
 #include <cbmem.h>
 #include <console/console.h>
 #include <cpu/cpu.h>
 #include <device/pnp.h>
 #include <ec/acpi/ec.h>
 #include <intelblocks/cpulib.h>
 #include <pc80/keyboard.h>
 #include <stdint.h>

 #include "commands.h"
 #include "ec.h"
 #include "chip.h"

 /*
  * Setting minimum length of UCSI_ACPI will ensure this region is placed out of IMD Small.
  * Having this region out of IMD Small will prevent any memory mapping conflicts.
  */
 #define UCSI_MIN_ALLOC_REGION_LEN	CBMEM_SM_ROOT_SIZE
 /*
  * The UCSI fields are defined in the UCSI specification at
  * https://www.intel.com/content/www/us/en/io/universal-serial-bus/usb-type-c-ucsi-spec.html
  * https://www.intel.com/content/www/us/en/io/universal-serial-bus/bios-implementation-of-ucsi.html
  */

 static struct fieldlist ucsi_region_fields[] = {
 	FIELDLIST_NAMESTR("VER0", 8),
 	FIELDLIST_NAMESTR("VER1", 8),
 	FIELDLIST_NAMESTR("RSV0", 8),
 	FIELDLIST_NAMESTR("RSV1", 8),
 	FIELDLIST_NAMESTR("CCI0", 8),
 	FIELDLIST_NAMESTR("CCI1", 8),
 	FIELDLIST_NAMESTR("CCI2", 8),
 	FIELDLIST_NAMESTR("CCI3", 8),
 	FIELDLIST_NAMESTR("CTL0", 8),
 	FIELDLIST_NAMESTR("CTL1", 8),
 	FIELDLIST_NAMESTR("CTL2", 8),
 	FIELDLIST_NAMESTR("CTL3", 8),
 	FIELDLIST_NAMESTR("CTL4", 8),
 	FIELDLIST_NAMESTR("CTL5", 8),
 	FIELDLIST_NAMESTR("CTL6", 8),
 	FIELDLIST_NAMESTR("CTL7", 8),
 	FIELDLIST_NAMESTR("MGI0", 8),
 	FIELDLIST_NAMESTR("MGI1", 8),
 	FIELDLIST_NAMESTR("MGI2", 8),
 	FIELDLIST_NAMESTR("MGI3", 8),
 	FIELDLIST_NAMESTR("MGI4", 8),
 	FIELDLIST_NAMESTR("MGI5", 8),
 	FIELDLIST_NAMESTR("MGI6", 8),
 	FIELDLIST_NAMESTR("MGI7", 8),
 	FIELDLIST_NAMESTR("MGI8", 8),
 	FIELDLIST_NAMESTR("MGI9", 8),
 	FIELDLIST_NAMESTR("MGIA", 8),
 	FIELDLIST_NAMESTR("MGIB", 8),
 	FIELDLIST_NAMESTR("MGIC", 8),
 	FIELDLIST_NAMESTR("MGID", 8),
 	FIELDLIST_NAMESTR("MGIE", 8),
 	FIELDLIST_NAMESTR("MGIF", 8),
 	FIELDLIST_NAMESTR("MGO0", 8),
 	FIELDLIST_NAMESTR("MGO1", 8),
 	FIELDLIST_NAMESTR("MGO2", 8),
 	FIELDLIST_NAMESTR("MGO3", 8),
 	FIELDLIST_NAMESTR("MGO4", 8),
 	FIELDLIST_NAMESTR("MGO5", 8),
 	FIELDLIST_NAMESTR("MGO6", 8),
 	FIELDLIST_NAMESTR("MGO7", 8),
 	FIELDLIST_NAMESTR("MGO8", 8),
 	FIELDLIST_NAMESTR("MGO9", 8),
 	FIELDLIST_NAMESTR("MGOA", 8),
 	FIELDLIST_NAMESTR("MGOB", 8),
 	FIELDLIST_NAMESTR("MGOC", 8),
 	FIELDLIST_NAMESTR("MGOD", 8),
 	FIELDLIST_NAMESTR("MGOE", 8),
 	FIELDLIST_NAMESTR("MGOF", 8),
 };
 static const size_t ucsi_region_len = ARRAY_SIZE(ucsi_region_fields);

 static void wilco_ec_post_complete(void *unused)
 {
 	wilco_ec_send(KB_BIOS_PROGRESS, BIOS_PROGRESS_POST_COMPLETE);
 }
 BOOT_STATE_INIT_ENTRY(BS_PAYLOAD_LOAD, BS_ON_EXIT,
 		      wilco_ec_post_complete, NULL);

 static void wilco_ec_post_memory_init(void *unused)
 {
 	wilco_ec_send(KB_BIOS_PROGRESS, BIOS_PROGRESS_MEMORY_INIT);
 }
 BOOT_STATE_INIT_ENTRY(BS_PRE_DEVICE, BS_ON_EXIT,
 		      wilco_ec_post_memory_init, NULL);

 static void wilco_ec_post_video_init(void *unused)
 {
 	wilco_ec_send(KB_BIOS_PROGRESS, BIOS_PROGRESS_VIDEO_INIT);
 }
 BOOT_STATE_INIT_ENTRY(BS_DEV_INIT, BS_ON_EXIT,
 		      wilco_ec_post_video_init, NULL);

 static void wilco_ec_post_logo_displayed(void *unused)
 {
 	wilco_ec_send(KB_BIOS_PROGRESS, BIOS_PROGRESS_LOGO_DISPLAYED);
 }
 BOOT_STATE_INIT_ENTRY(BS_POST_DEVICE, BS_ON_EXIT,
 		      wilco_ec_post_logo_displayed, NULL);

 static void wilco_ec_resume(void *unused)
 {
 	wilco_ec_send_noargs(KB_RESTORE);
 }
 BOOT_STATE_INIT_ENTRY(BS_OS_RESUME, BS_ON_ENTRY, wilco_ec_resume, NULL);

 static int wilco_set_cpu_id(void)
 {
 	uint32_t cpu_phy_cores, cpu_virtual_cores;

 	cpu_read_topology(&cpu_phy_cores, &cpu_virtual_cores);
 	return wilco_ec_set_cpuid(cpu_get_cpuid(), cpu_phy_cores, 0);
 }

 static void wilco_ec_init(struct device *dev)
 {
 	if (!dev->enabled)
 		return;

 	/* Disable S0ix support in EC RAM with ACPI EC interface */
 	if (!acpi_is_wakeup_s3()) {
 		ec_set_ports(CONFIG_EC_BASE_ACPI_COMMAND,
 			     CONFIG_EC_BASE_ACPI_DATA);
 		ec_write(EC_RAM_S0IX_SUPPORT, 0);
 	}

 	/* Print EC firmware information */
 	wilco_ec_print_all_info();

 	/* Initialize keyboard, ignore emulated PS/2 mouse */
 	pc_keyboard_init(NO_AUX_DEVICE);

 	/* Direct power button to the host for processing */
 	wilco_ec_send(KB_POWER_BUTTON_TO_HOST, 1);

 	/* Unmute speakers */
 	wilco_ec_send(KB_HW_MUTE_CONTROL, AUDIO_UNMUTE_125MS);

 	/* Enable WiFi radio */
 	wilco_ec_radio_control(RADIO_WIFI, 1);

 	/* Turn on camera power */
 	wilco_ec_send(KB_CAMERA, CAMERA_ON);

 	/* Set cpu id and phy cores */
 	if (wilco_set_cpu_id())
 		printk(BIOS_ERR, "EC: use default cpu power table\n");
 }

 static void wilco_ec_resource(struct device *dev, int index,
 			      size_t base, size_t size)
 {
 	struct resource *res = new_resource(dev, index);
 	res->base = base;
 	res->size = size;
 	res->flags = IORESOURCE_IO | IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
 }

 static void wilco_ec_read_resources(struct device *dev)
 {
 	/* ACPI command and data regions */
 	wilco_ec_resource(dev, 0, CONFIG_EC_BASE_ACPI_DATA, 8);

 	/* Host command and data regions */
 	wilco_ec_resource(dev, 1, CONFIG_EC_BASE_HOST_DATA, 8);

 	/* Packet region */
 	wilco_ec_resource(dev, 2, CONFIG_EC_BASE_PACKET, 16);
 }

 static void wilco_ec_fill_ssdt_generator(const struct device *dev)
 {
 	struct opregion opreg;
 	void *region_ptr;
 	size_t ucsi_alloc_region_len;

 	ucsi_alloc_region_len = ucsi_region_len < UCSI_MIN_ALLOC_REGION_LEN ?
 		UCSI_MIN_ALLOC_REGION_LEN : ucsi_region_len;
 	region_ptr = cbmem_add(CBMEM_ID_ACPI_UCSI, ucsi_alloc_region_len);
 	if (!region_ptr)
 		return;
 	memset(region_ptr, 0, ucsi_alloc_region_len);

 	opreg.name = "UCSM";
 	opreg.regionspace = SYSTEMMEMORY;
 	opreg.regionoffset = (uintptr_t)region_ptr;
 	opreg.regionlen = ucsi_alloc_region_len;

 	acpigen_write_scope("\\_SB.UCSI");
 	acpigen_write_name("_CRS");
 	acpigen_write_resourcetemplate_header();
 	acpigen_write_mem32fixed(1, (uintptr_t)region_ptr, ucsi_region_len);
 	acpigen_write_resourcetemplate_footer();
 	acpigen_write_opregion(&opreg);
 	acpigen_write_field(opreg.name, ucsi_region_fields, ucsi_region_len,
 			    FIELD_ANYACC | FIELD_LOCK | FIELD_PRESERVE);
 	acpigen_pop_len(); /* Scope */
 }

 static const char *wilco_ec_acpi_name(const struct device *dev)
 {
 	return "EC0";
 }

 static struct device_operations ops = {
 	.init			= wilco_ec_init,
 	.read_resources		= wilco_ec_read_resources,
 	.set_resources		= noop_set_resources,
 	.acpi_fill_ssdt		= wilco_ec_fill_ssdt_generator,
 	.acpi_name		= wilco_ec_acpi_name,
 };

 static struct pnp_info info[] = {
 	{ NULL, 0, 0, 0, }
 };

 static void wilco_ec_enable_dev(struct device *dev)
 {
 	pnp_enable_devices(dev, &ops, ARRAY_SIZE(info), info);
 }

 struct chip_operations ec_google_wilco_ops = {
 	.name = "Google Wilco EC",
 	.enable_dev = wilco_ec_enable_dev,
 };
	/* SPDX-License-Identifier: GPL-2.0-only */

	#include <acpi/acpi_device.h>
	#include <acpi/acpi.h>
	#include <acpi/acpigen.h>
	#include <bootstate.h>
	#include <cbmem.h>
	#include <console/console.h>
	#include <cpu/cpu.h>
	#include <device/pnp.h>
	#include <ec/acpi/ec.h>
	#include <intelblocks/cpulib.h>
	#include <pc80/keyboard.h>
	#include <stdint.h>

	#include "commands.h"
	#include "ec.h"
	#include "chip.h"

	/*
	* Setting minimum length of UCSI_ACPI will ensure this region is placed out of IMD Small.
	* Having this region out of IMD Small will prevent any memory mapping conflicts.
	*/
	#define UCSI_MIN_ALLOC_REGION_LEN CBMEM_SM_ROOT_SIZE
	/*
	* The UCSI fields are defined in the UCSI specification at
	* https://www.intel.com/content/www/us/en/io/universal-serial-bus/usb-type-c-ucsi-spec.html
	* https://www.intel.com/content/www/us/en/io/universal-serial-bus/bios-implementation-of-ucsi.html
	*/

	static struct fieldlist ucsi_region_fields[] = {
	FIELDLIST_NAMESTR("VER0", 8),
	FIELDLIST_NAMESTR("VER1", 8),
	FIELDLIST_NAMESTR("RSV0", 8),
	FIELDLIST_NAMESTR("RSV1", 8),
	FIELDLIST_NAMESTR("CCI0", 8),
	FIELDLIST_NAMESTR("CCI1", 8),
	FIELDLIST_NAMESTR("CCI2", 8),
	FIELDLIST_NAMESTR("CCI3", 8),
	FIELDLIST_NAMESTR("CTL0", 8),
	FIELDLIST_NAMESTR("CTL1", 8),
	FIELDLIST_NAMESTR("CTL2", 8),
	FIELDLIST_NAMESTR("CTL3", 8),
	FIELDLIST_NAMESTR("CTL4", 8),
	FIELDLIST_NAMESTR("CTL5", 8),
	FIELDLIST_NAMESTR("CTL6", 8),
	FIELDLIST_NAMESTR("CTL7", 8),
	FIELDLIST_NAMESTR("MGI0", 8),
	FIELDLIST_NAMESTR("MGI1", 8),
	FIELDLIST_NAMESTR("MGI2", 8),
	FIELDLIST_NAMESTR("MGI3", 8),
	FIELDLIST_NAMESTR("MGI4", 8),
	FIELDLIST_NAMESTR("MGI5", 8),
	FIELDLIST_NAMESTR("MGI6", 8),
	FIELDLIST_NAMESTR("MGI7", 8),
	FIELDLIST_NAMESTR("MGI8", 8),
	FIELDLIST_NAMESTR("MGI9", 8),
	FIELDLIST_NAMESTR("MGIA", 8),
	FIELDLIST_NAMESTR("MGIB", 8),
	FIELDLIST_NAMESTR("MGIC", 8),
	FIELDLIST_NAMESTR("MGID", 8),
	FIELDLIST_NAMESTR("MGIE", 8),
	FIELDLIST_NAMESTR("MGIF", 8),
	FIELDLIST_NAMESTR("MGO0", 8),
	FIELDLIST_NAMESTR("MGO1", 8),
	FIELDLIST_NAMESTR("MGO2", 8),
	FIELDLIST_NAMESTR("MGO3", 8),
	FIELDLIST_NAMESTR("MGO4", 8),
	FIELDLIST_NAMESTR("MGO5", 8),
	FIELDLIST_NAMESTR("MGO6", 8),
	FIELDLIST_NAMESTR("MGO7", 8),
	FIELDLIST_NAMESTR("MGO8", 8),
	FIELDLIST_NAMESTR("MGO9", 8),
	FIELDLIST_NAMESTR("MGOA", 8),
	FIELDLIST_NAMESTR("MGOB", 8),
	FIELDLIST_NAMESTR("MGOC", 8),
	FIELDLIST_NAMESTR("MGOD", 8),
	FIELDLIST_NAMESTR("MGOE", 8),
	FIELDLIST_NAMESTR("MGOF", 8),
	};
	static const size_t ucsi_region_len = ARRAY_SIZE(ucsi_region_fields);

	static void wilco_ec_post_complete(void *unused)
	{
	wilco_ec_send(KB_BIOS_PROGRESS, BIOS_PROGRESS_POST_COMPLETE);
	}
	BOOT_STATE_INIT_ENTRY(BS_PAYLOAD_LOAD, BS_ON_EXIT,
	wilco_ec_post_complete, NULL);

	static void wilco_ec_post_memory_init(void *unused)
	{
	wilco_ec_send(KB_BIOS_PROGRESS, BIOS_PROGRESS_MEMORY_INIT);
	}
	BOOT_STATE_INIT_ENTRY(BS_PRE_DEVICE, BS_ON_EXIT,
	wilco_ec_post_memory_init, NULL);

	static void wilco_ec_post_video_init(void *unused)
	{
	wilco_ec_send(KB_BIOS_PROGRESS, BIOS_PROGRESS_VIDEO_INIT);
	}
	BOOT_STATE_INIT_ENTRY(BS_DEV_INIT, BS_ON_EXIT,
	wilco_ec_post_video_init, NULL);

	static void wilco_ec_post_logo_displayed(void *unused)
	{
	wilco_ec_send(KB_BIOS_PROGRESS, BIOS_PROGRESS_LOGO_DISPLAYED);
	}
	BOOT_STATE_INIT_ENTRY(BS_POST_DEVICE, BS_ON_EXIT,
	wilco_ec_post_logo_displayed, NULL);

	static void wilco_ec_resume(void *unused)
	{
	wilco_ec_send_noargs(KB_RESTORE);
	}
	BOOT_STATE_INIT_ENTRY(BS_OS_RESUME, BS_ON_ENTRY, wilco_ec_resume, NULL);

	static int wilco_set_cpu_id(void)
	{
	uint32_t cpu_phy_cores, cpu_virtual_cores;

	cpu_read_topology(&cpu_phy_cores, &cpu_virtual_cores);
	return wilco_ec_set_cpuid(cpu_get_cpuid(), cpu_phy_cores, 0);
	}

	static void wilco_ec_init(struct device *dev)
	{
	if (!dev->enabled)
	return;

	/* Disable S0ix support in EC RAM with ACPI EC interface */
	if (!acpi_is_wakeup_s3()) {
	ec_set_ports(CONFIG_EC_BASE_ACPI_COMMAND,
	CONFIG_EC_BASE_ACPI_DATA);
	ec_write(EC_RAM_S0IX_SUPPORT, 0);
	}

	/* Print EC firmware information */
	wilco_ec_print_all_info();

	/* Initialize keyboard, ignore emulated PS/2 mouse */
	pc_keyboard_init(NO_AUX_DEVICE);

	/* Direct power button to the host for processing */
	wilco_ec_send(KB_POWER_BUTTON_TO_HOST, 1);

	/* Unmute speakers */
	wilco_ec_send(KB_HW_MUTE_CONTROL, AUDIO_UNMUTE_125MS);

	/* Enable WiFi radio */
	wilco_ec_radio_control(RADIO_WIFI, 1);

	/* Turn on camera power */
	wilco_ec_send(KB_CAMERA, CAMERA_ON);

	/* Set cpu id and phy cores */
	if (wilco_set_cpu_id())
	printk(BIOS_ERR, "EC: use default cpu power table\n");
	}

	static void wilco_ec_resource(struct device *dev, int index,
	size_t base, size_t size)
	{
	struct resource *res = new_resource(dev, index);
	res->base = base;
	res->size = size;
	res->flags = IORESOURCE_IO \| IORESOURCE_ASSIGNED \| IORESOURCE_FIXED;
	}

	static void wilco_ec_read_resources(struct device *dev)
	{
	/* ACPI command and data regions */
	wilco_ec_resource(dev, 0, CONFIG_EC_BASE_ACPI_DATA, 8);

	/* Host command and data regions */
	wilco_ec_resource(dev, 1, CONFIG_EC_BASE_HOST_DATA, 8);

	/* Packet region */
	wilco_ec_resource(dev, 2, CONFIG_EC_BASE_PACKET, 16);
	}

	static void wilco_ec_fill_ssdt_generator(const struct device *dev)
	{
	struct opregion opreg;
	void *region_ptr;
	size_t ucsi_alloc_region_len;

	ucsi_alloc_region_len = ucsi_region_len < UCSI_MIN_ALLOC_REGION_LEN ?
	UCSI_MIN_ALLOC_REGION_LEN : ucsi_region_len;
	region_ptr = cbmem_add(CBMEM_ID_ACPI_UCSI, ucsi_alloc_region_len);
	if (!region_ptr)
	return;
	memset(region_ptr, 0, ucsi_alloc_region_len);

	opreg.name = "UCSM";
	opreg.regionspace = SYSTEMMEMORY;
	opreg.regionoffset = (uintptr_t)region_ptr;
	opreg.regionlen = ucsi_alloc_region_len;

	acpigen_write_scope("\\_SB.UCSI");
	acpigen_write_name("_CRS");
	acpigen_write_resourcetemplate_header();
	acpigen_write_mem32fixed(1, (uintptr_t)region_ptr, ucsi_region_len);
	acpigen_write_resourcetemplate_footer();
	acpigen_write_opregion(&opreg);
	acpigen_write_field(opreg.name, ucsi_region_fields, ucsi_region_len,
	FIELD_ANYACC \| FIELD_LOCK \| FIELD_PRESERVE);
	acpigen_pop_len(); /* Scope */
	}

	static const char wilco_ec_acpi_name(const struct device dev)
	{
	return "EC0";
	}

	static struct device_operations ops = {
	.init = wilco_ec_init,
	.read_resources = wilco_ec_read_resources,
	.set_resources = noop_set_resources,
	.acpi_fill_ssdt = wilco_ec_fill_ssdt_generator,
	.acpi_name = wilco_ec_acpi_name,
	};

	static struct pnp_info info[] = {
	{ NULL, 0, 0, 0, }
	};

	static void wilco_ec_enable_dev(struct device *dev)
	{
	pnp_enable_devices(dev, &ops, ARRAY_SIZE(info), info);
	}

	struct chip_operations ec_google_wilco_ops = {
	.name = "Google Wilco EC",
	.enable_dev = wilco_ec_enable_dev,
	};