From 56a5ebf48d648f0df4bf338c441a79968734e5a5 Mon Sep 17 00:00:00 2001 From: Furquan Shaikh Date: Thu, 30 Apr 2020 23:56:20 -0700 Subject: acpi: Remove acpi_ from filenames This change drops acpi_ prefix from filenames under src/acpi/. BUG=b:155428745 Change-Id: Iadda2b848701367e51f4f74706154f7e36a87df6 Signed-off-by: Furquan Shaikh Reviewed-on: https://review.coreboot.org/c/coreboot/+/40941 Tested-by: build bot (Jenkins) Reviewed-by: HAOUAS Elyes --- src/acpi/Makefile.inc | 5 +- src/acpi/acpi_device.c | 961 ------------------------------------------------- src/acpi/acpi_pld.c | 160 -------- src/acpi/device.c | 961 +++++++++++++++++++++++++++++++++++++++++++++++++ src/acpi/pld.c | 160 ++++++++ 5 files changed, 1123 insertions(+), 1124 deletions(-) delete mode 100644 src/acpi/acpi_device.c delete mode 100644 src/acpi/acpi_pld.c create mode 100644 src/acpi/device.c create mode 100644 src/acpi/pld.c (limited to 'src') diff --git a/src/acpi/Makefile.inc b/src/acpi/Makefile.inc index 09ff9f1e58..09b990603f 100644 --- a/src/acpi/Makefile.inc +++ b/src/acpi/Makefile.inc @@ -4,12 +4,11 @@ ifeq ($(CONFIG_HAVE_ACPI_TABLES),y) ramstage-y += acpi.c -ramstage-y += acpi_device.c -ramstage-y += acpi_pld.c ramstage-y += acpigen.c ramstage-y += acpigen_dsm.c ramstage-y += acpigen_ps2_keybd.c - +ramstage-y += device.c +ramstage-y += pld.c ramstage-y += sata.c ifneq ($(wildcard src/mainboard/$(MAINBOARDDIR)/acpi_tables.c),) diff --git a/src/acpi/acpi_device.c b/src/acpi/acpi_device.c deleted file mode 100644 index 6b067f3a0f..0000000000 --- a/src/acpi/acpi_device.c +++ /dev/null @@ -1,961 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* This file is part of the coreboot project. */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#if CONFIG(GENERIC_GPIO_LIB) -#include -#endif - -#define ACPI_DP_UUID "daffd814-6eba-4d8c-8a91-bc9bbf4aa301" -#define ACPI_DP_CHILD_UUID "dbb8e3e6-5886-4ba6-8795-1319f52a966b" - -/* Write empty word value and return pointer to it */ -static void *acpi_device_write_zero_len(void) -{ - char *p = acpigen_get_current(); - acpigen_emit_word(0); - return p; -} - -/* Fill in length value from start to current at specified location */ -static void acpi_device_fill_from_len(char *ptr, char *start) -{ - uint16_t len = acpigen_get_current() - start; - ptr[0] = len & 0xff; - ptr[1] = (len >> 8) & 0xff; -} - -/* - * Fill in the length field with the value calculated from after - * the 16bit field to acpigen current as this length value does - * not include the length field itself. - */ -static void acpi_device_fill_len(void *ptr) -{ - acpi_device_fill_from_len(ptr, ptr + sizeof(uint16_t)); -} - -/* Locate and return the ACPI name for this device */ -const char *acpi_device_name(const struct device *dev) -{ - const struct device *pdev = dev; - const char *name = NULL; - - if (!dev) - return NULL; - - /* Check for device specific handler */ - if (dev->ops->acpi_name) - return dev->ops->acpi_name(dev); - - /* Walk up the tree to find if any parent can identify this device */ - while (pdev->bus) { - pdev = pdev->bus->dev; - if (!pdev) - break; - if (pdev->path.type == DEVICE_PATH_ROOT) - break; - if (pdev->ops && pdev->ops->acpi_name) - name = pdev->ops->acpi_name(dev); - if (name) - return name; - } - - return NULL; -} - -/* Locate and return the ACPI _HID (Hardware ID) for this device */ -const char *acpi_device_hid(const struct device *dev) -{ - if (!dev) - return NULL; - - /* Check for device specific handler */ - if (dev->ops->acpi_hid) - return dev->ops->acpi_hid(dev); - - /* - * Don't walk up the tree to find any parent that can identify this device, as - * PNP devices are hard to identify. - */ - - return NULL; -} - -/* - * Generate unique ID based on the ACPI path. - * Collisions on the same _HID are possible but very unlikely. - */ -uint32_t acpi_device_uid(const struct device *dev) -{ - const char *path = acpi_device_path(dev); - if (!path) - return 0; - - return CRC(path, strlen(path), crc32_byte); -} - -/* Recursive function to find the root device and print a path from there */ -static ssize_t acpi_device_path_fill(const struct device *dev, char *buf, - size_t buf_len, size_t cur) -{ - const char *name = acpi_device_name(dev); - ssize_t next = 0; - - if (!name) - return -1; - - /* - * Make sure this name segment will fit, including the path segment - * separator and possible NUL terminator if this is the last segment. - */ - if (!dev || (cur + strlen(name) + 2) > buf_len) - return cur; - - /* Walk up the tree to the root device */ - if (dev->path.type != DEVICE_PATH_ROOT && dev->bus && dev->bus->dev) - next = acpi_device_path_fill(dev->bus->dev, buf, buf_len, cur); - if (next < 0) - return next; - - /* Fill in the path from the root device */ - next += snprintf(buf + next, buf_len - next, "%s%s", - (dev->path.type == DEVICE_PATH_ROOT - || (strlen(name) == 0)) ? - "" : ".", name); - - return next; -} - -/* - * Warning: just as with dev_path() this uses a static buffer - * so should not be called mulitple times in one statement - */ -const char *acpi_device_path(const struct device *dev) -{ - static char buf[DEVICE_PATH_MAX] = {}; - - if (!dev) - return NULL; - - if (acpi_device_path_fill(dev, buf, sizeof(buf), 0) <= 0) - return NULL; - - return buf; -} - -/* Return the path of the parent device as the ACPI Scope for this device */ -const char *acpi_device_scope(const struct device *dev) -{ - static char buf[DEVICE_PATH_MAX] = {}; - - if (!dev || !dev->bus || !dev->bus->dev) - return NULL; - - if (acpi_device_path_fill(dev->bus->dev, buf, sizeof(buf), 0) <= 0) - return NULL; - - return buf; -} - -/* Concatenate the device path and provided name suffix */ -const char *acpi_device_path_join(const struct device *dev, const char *name) -{ - static char buf[DEVICE_PATH_MAX] = {}; - ssize_t len; - - if (!dev) - return NULL; - - /* Build the path of this device */ - len = acpi_device_path_fill(dev, buf, sizeof(buf), 0); - if (len <= 0) - return NULL; - - /* Ensure there is room for the added name, separator, and NUL */ - if ((len + strlen(name) + 2) > sizeof(buf)) - return NULL; - snprintf(buf + len, sizeof(buf) - len, ".%s", name); - - return buf; -} - -int acpi_device_status(const struct device *dev) -{ - if (!dev->enabled) - return ACPI_STATUS_DEVICE_ALL_OFF; - if (dev->hidden) - return ACPI_STATUS_DEVICE_HIDDEN_ON; - return ACPI_STATUS_DEVICE_ALL_ON; -} - - -/* Write the unique _UID based on ACPI device path. */ -void acpi_device_write_uid(const struct device *dev) -{ - acpigen_write_name_integer("_UID", acpi_device_uid(dev)); -} - -/* ACPI 6.1 section 6.4.3.6: Extended Interrupt Descriptor */ -void acpi_device_write_interrupt(const struct acpi_irq *irq) -{ - void *desc_length; - uint8_t flags; - - if (!irq || !irq->pin) - return; - - /* This is supported by GpioInt() but not Interrupt() */ - if (irq->polarity == ACPI_IRQ_ACTIVE_BOTH) - return; - - /* Byte 0: Descriptor Type */ - acpigen_emit_byte(ACPI_DESCRIPTOR_INTERRUPT); - - /* Byte 1-2: Length (filled in later) */ - desc_length = acpi_device_write_zero_len(); - - /* - * Byte 3: Flags - * [7:5]: Reserved - * [4]: Wake (0=NO_WAKE 1=WAKE) - * [3]: Sharing (0=EXCLUSIVE 1=SHARED) - * [2]: Polarity (0=HIGH 1=LOW) - * [1]: Mode (0=LEVEL 1=EDGE) - * [0]: Resource (0=PRODUCER 1=CONSUMER) - */ - flags = 1 << 0; /* ResourceConsumer */ - if (irq->mode == ACPI_IRQ_EDGE_TRIGGERED) - flags |= 1 << 1; - if (irq->polarity == ACPI_IRQ_ACTIVE_LOW) - flags |= 1 << 2; - if (irq->shared == ACPI_IRQ_SHARED) - flags |= 1 << 3; - if (irq->wake == ACPI_IRQ_WAKE) - flags |= 1 << 4; - acpigen_emit_byte(flags); - - /* Byte 4: Interrupt Table Entry Count */ - acpigen_emit_byte(1); - - /* Byte 5-8: Interrupt Number */ - acpigen_emit_dword(irq->pin); - - /* Fill in Descriptor Length (account for len word) */ - acpi_device_fill_len(desc_length); -} - -/* ACPI 6.1 section 6.4.3.8.1 - GPIO Interrupt or I/O */ -void acpi_device_write_gpio(const struct acpi_gpio *gpio) -{ - void *start, *desc_length; - void *pin_table_offset, *vendor_data_offset, *resource_offset; - uint16_t flags = 0; - int pin; - - if (!gpio || gpio->type > ACPI_GPIO_TYPE_IO) - return; - - start = acpigen_get_current(); - - /* Byte 0: Descriptor Type */ - acpigen_emit_byte(ACPI_DESCRIPTOR_GPIO); - - /* Byte 1-2: Length (fill in later) */ - desc_length = acpi_device_write_zero_len(); - - /* Byte 3: Revision ID */ - acpigen_emit_byte(ACPI_GPIO_REVISION_ID); - - /* Byte 4: GpioIo or GpioInt */ - acpigen_emit_byte(gpio->type); - - /* - * Byte 5-6: General Flags - * [15:1]: 0 => Reserved - * [0]: 1 => ResourceConsumer - */ - acpigen_emit_word(1 << 0); - - switch (gpio->type) { - case ACPI_GPIO_TYPE_INTERRUPT: - /* - * Byte 7-8: GPIO Interrupt Flags - * [15:5]: 0 => Reserved - * [4]: Wake (0=NO_WAKE 1=WAKE) - * [3]: Sharing (0=EXCLUSIVE 1=SHARED) - * [2:1]: Polarity (0=HIGH 1=LOW 2=BOTH) - * [0]: Mode (0=LEVEL 1=EDGE) - */ - if (gpio->irq.mode == ACPI_IRQ_EDGE_TRIGGERED) - flags |= 1 << 0; - if (gpio->irq.shared == ACPI_IRQ_SHARED) - flags |= 1 << 3; - if (gpio->irq.wake == ACPI_IRQ_WAKE) - flags |= 1 << 4; - - switch (gpio->irq.polarity) { - case ACPI_IRQ_ACTIVE_HIGH: - flags |= 0 << 1; - break; - case ACPI_IRQ_ACTIVE_LOW: - flags |= 1 << 1; - break; - case ACPI_IRQ_ACTIVE_BOTH: - flags |= 2 << 1; - break; - } - break; - - case ACPI_GPIO_TYPE_IO: - /* - * Byte 7-8: GPIO IO Flags - * [15:4]: 0 => Reserved - * [3]: Sharing (0=EXCLUSIVE 1=SHARED) - * [2]: 0 => Reserved - * [1:0]: IO Restriction - * 0 => IoRestrictionNone - * 1 => IoRestrictionInputOnly - * 2 => IoRestrictionOutputOnly - * 3 => IoRestrictionNoneAndPreserve - */ - flags |= gpio->io_restrict & 3; - if (gpio->io_shared) - flags |= 1 << 3; - break; - } - acpigen_emit_word(flags); - - /* - * Byte 9: Pin Configuration - * 0x01 => Default (no configuration applied) - * 0x02 => Pull-up - * 0x03 => Pull-down - * 0x04-0x7F => Reserved - * 0x80-0xff => Vendor defined - */ - acpigen_emit_byte(gpio->pull); - - /* Byte 10-11: Output Drive Strength in 1/100 mA */ - acpigen_emit_word(gpio->output_drive_strength); - - /* Byte 12-13: Debounce Timeout in 1/100 ms */ - acpigen_emit_word(gpio->interrupt_debounce_timeout); - - /* Byte 14-15: Pin Table Offset, relative to start */ - pin_table_offset = acpi_device_write_zero_len(); - - /* Byte 16: Reserved */ - acpigen_emit_byte(0); - - /* Byte 17-18: Resource Source Name Offset, relative to start */ - resource_offset = acpi_device_write_zero_len(); - - /* Byte 19-20: Vendor Data Offset, relative to start */ - vendor_data_offset = acpi_device_write_zero_len(); - - /* Byte 21-22: Vendor Data Length */ - acpigen_emit_word(0); - - /* Fill in Pin Table Offset */ - acpi_device_fill_from_len(pin_table_offset, start); - - /* Pin Table, one word for each pin */ - for (pin = 0; pin < gpio->pin_count; pin++) { - uint16_t acpi_pin = gpio->pins[pin]; -#if CONFIG(GENERIC_GPIO_LIB) - acpi_pin = gpio_acpi_pin(acpi_pin); -#endif - acpigen_emit_word(acpi_pin); - } - - /* Fill in Resource Source Name Offset */ - acpi_device_fill_from_len(resource_offset, start); - - /* Resource Source Name String */ -#if CONFIG(GENERIC_GPIO_LIB) - acpigen_emit_string(gpio->resource ? : gpio_acpi_path(gpio->pins[0])); -#else - acpigen_emit_string(gpio->resource); -#endif - - /* Fill in Vendor Data Offset */ - acpi_device_fill_from_len(vendor_data_offset, start); - - /* Fill in GPIO Descriptor Length (account for len word) */ - acpi_device_fill_len(desc_length); -} - -/* ACPI 6.1 section 6.4.3.8.2.1 - I2cSerialBus() */ -void acpi_device_write_i2c(const struct acpi_i2c *i2c) -{ - void *desc_length, *type_length; - - /* Byte 0: Descriptor Type */ - acpigen_emit_byte(ACPI_DESCRIPTOR_SERIAL_BUS); - - /* Byte 1+2: Length (filled in later) */ - desc_length = acpi_device_write_zero_len(); - - /* Byte 3: Revision ID */ - acpigen_emit_byte(ACPI_I2C_SERIAL_BUS_REVISION_ID); - - /* Byte 4: Resource Source Index is Reserved */ - acpigen_emit_byte(0); - - /* Byte 5: Serial Bus Type is I2C */ - acpigen_emit_byte(ACPI_SERIAL_BUS_TYPE_I2C); - - /* - * Byte 6: Flags - * [7:2]: 0 => Reserved - * [1]: 1 => ResourceConsumer - * [0]: 0 => ControllerInitiated - */ - acpigen_emit_byte(1 << 1); - - /* - * Byte 7-8: Type Specific Flags - * [15:1]: 0 => Reserved - * [0]: 0 => 7bit, 1 => 10bit - */ - acpigen_emit_word(i2c->mode_10bit); - - /* Byte 9: Type Specific Revision ID */ - acpigen_emit_byte(ACPI_I2C_TYPE_SPECIFIC_REVISION_ID); - - /* Byte 10-11: I2C Type Data Length */ - type_length = acpi_device_write_zero_len(); - - /* Byte 12-15: I2C Bus Speed */ - acpigen_emit_dword(i2c->speed); - - /* Byte 16-17: I2C Slave Address */ - acpigen_emit_word(i2c->address); - - /* Fill in Type Data Length */ - acpi_device_fill_len(type_length); - - /* Byte 18+: ResourceSource */ - acpigen_emit_string(i2c->resource); - - /* Fill in I2C Descriptor Length */ - acpi_device_fill_len(desc_length); -} - -/* ACPI 6.1 section 6.4.3.8.2.2 - SpiSerialBus() */ -void acpi_device_write_spi(const struct acpi_spi *spi) -{ - void *desc_length, *type_length; - uint16_t flags = 0; - - /* Byte 0: Descriptor Type */ - acpigen_emit_byte(ACPI_DESCRIPTOR_SERIAL_BUS); - - /* Byte 1+2: Length (filled in later) */ - desc_length = acpi_device_write_zero_len(); - - /* Byte 3: Revision ID */ - acpigen_emit_byte(ACPI_SPI_SERIAL_BUS_REVISION_ID); - - /* Byte 4: Resource Source Index is Reserved */ - acpigen_emit_byte(0); - - /* Byte 5: Serial Bus Type is SPI */ - acpigen_emit_byte(ACPI_SERIAL_BUS_TYPE_SPI); - - /* - * Byte 6: Flags - * [7:2]: 0 => Reserved - * [1]: 1 => ResourceConsumer - * [0]: 0 => ControllerInitiated - */ - acpigen_emit_byte(1 << 1); - - /* - * Byte 7-8: Type Specific Flags - * [15:2]: 0 => Reserved - * [1]: 0 => ActiveLow, 1 => ActiveHigh - * [0]: 0 => FourWire, 1 => ThreeWire - */ - if (spi->wire_mode == SPI_3_WIRE_MODE) - flags |= 1 << 0; - if (spi->device_select_polarity == SPI_POLARITY_HIGH) - flags |= 1 << 1; - acpigen_emit_word(flags); - - /* Byte 9: Type Specific Revision ID */ - acpigen_emit_byte(ACPI_SPI_TYPE_SPECIFIC_REVISION_ID); - - /* Byte 10-11: SPI Type Data Length */ - type_length = acpi_device_write_zero_len(); - - /* Byte 12-15: Connection Speed */ - acpigen_emit_dword(spi->speed); - - /* Byte 16: Data Bit Length */ - acpigen_emit_byte(spi->data_bit_length); - - /* Byte 17: Clock Phase */ - acpigen_emit_byte(spi->clock_phase); - - /* Byte 18: Clock Polarity */ - acpigen_emit_byte(spi->clock_polarity); - - /* Byte 19-20: Device Selection */ - acpigen_emit_word(spi->device_select); - - /* Fill in Type Data Length */ - acpi_device_fill_len(type_length); - - /* Byte 21+: ResourceSource String */ - acpigen_emit_string(spi->resource); - - /* Fill in SPI Descriptor Length */ - acpi_device_fill_len(desc_length); -} - -/* PowerResource() with Enable and/or Reset control */ -void acpi_device_add_power_res(const struct acpi_power_res_params *params) -{ - static const char * const power_res_dev_states[] = { "_PR0", "_PR3" }; - unsigned int reset_gpio = params->reset_gpio ? params->reset_gpio->pins[0] : 0; - unsigned int enable_gpio = params->enable_gpio ? params->enable_gpio->pins[0] : 0; - unsigned int stop_gpio = params->stop_gpio ? params->stop_gpio->pins[0] : 0; - - if (!reset_gpio && !enable_gpio && !stop_gpio) - return; - - /* PowerResource (PRIC, 0, 0) */ - acpigen_write_power_res("PRIC", 0, 0, power_res_dev_states, - ARRAY_SIZE(power_res_dev_states)); - - /* Method (_STA, 0, NotSerialized) { Return (0x1) } */ - acpigen_write_STA(0x1); - - /* Method (_ON, 0, Serialized) */ - acpigen_write_method_serialized("_ON", 0); - if (reset_gpio) - acpigen_enable_tx_gpio(params->reset_gpio); - if (enable_gpio) { - acpigen_enable_tx_gpio(params->enable_gpio); - if (params->enable_delay_ms) - acpigen_write_sleep(params->enable_delay_ms); - } - if (reset_gpio) { - acpigen_disable_tx_gpio(params->reset_gpio); - if (params->reset_delay_ms) - acpigen_write_sleep(params->reset_delay_ms); - } - if (stop_gpio) { - acpigen_disable_tx_gpio(params->stop_gpio); - if (params->stop_delay_ms) - acpigen_write_sleep(params->stop_delay_ms); - } - acpigen_pop_len(); /* _ON method */ - - /* Method (_OFF, 0, Serialized) */ - acpigen_write_method_serialized("_OFF", 0); - if (stop_gpio) { - acpigen_enable_tx_gpio(params->stop_gpio); - if (params->stop_off_delay_ms) - acpigen_write_sleep(params->stop_off_delay_ms); - } - if (reset_gpio) { - acpigen_enable_tx_gpio(params->reset_gpio); - if (params->reset_off_delay_ms) - acpigen_write_sleep(params->reset_off_delay_ms); - } - if (enable_gpio) { - acpigen_disable_tx_gpio(params->enable_gpio); - if (params->enable_off_delay_ms) - acpigen_write_sleep(params->enable_off_delay_ms); - } - acpigen_pop_len(); /* _OFF method */ - - acpigen_pop_len(); /* PowerResource PRIC */ -} - -static void acpi_dp_write_array(const struct acpi_dp *array); -static void acpi_dp_write_value(const struct acpi_dp *prop) -{ - switch (prop->type) { - case ACPI_DP_TYPE_INTEGER: - acpigen_write_integer(prop->integer); - break; - case ACPI_DP_TYPE_STRING: - case ACPI_DP_TYPE_CHILD: - acpigen_write_string(prop->string); - break; - case ACPI_DP_TYPE_REFERENCE: - acpigen_emit_namestring(prop->string); - break; - case ACPI_DP_TYPE_ARRAY: - acpi_dp_write_array(prop->array); - break; - default: - break; - } -} - -/* Package (2) { "prop->name", VALUE } */ -static void acpi_dp_write_property(const struct acpi_dp *prop) -{ - acpigen_write_package(2); - acpigen_write_string(prop->name); - acpi_dp_write_value(prop); - acpigen_pop_len(); -} - -/* Write array of Device Properties */ -static void acpi_dp_write_array(const struct acpi_dp *array) -{ - const struct acpi_dp *dp; - char *pkg_count; - - /* Package element count determined as it is populated */ - pkg_count = acpigen_write_package(0); - - /* - * Only acpi_dp of type DP_TYPE_TABLE is allowed to be an array. - * DP_TYPE_TABLE does not have a value to be written. Thus, start - * the loop from next type in the array. - */ - for (dp = array->next; dp; dp = dp->next) { - acpi_dp_write_value(dp); - (*pkg_count)++; - } - - acpigen_pop_len(); -} - -static void acpi_dp_free(struct acpi_dp *dp) -{ - while (dp) { - struct acpi_dp *p = dp->next; - - switch (dp->type) { - case ACPI_DP_TYPE_CHILD: - acpi_dp_free(dp->child); - break; - case ACPI_DP_TYPE_ARRAY: - acpi_dp_free(dp->array); - break; - default: - break; - } - - free(dp); - dp = p; - } -} - -void acpi_dp_write(struct acpi_dp *table) -{ - struct acpi_dp *dp, *prop; - char *dp_count, *prop_count = NULL; - int child_count = 0; - - if (!table || table->type != ACPI_DP_TYPE_TABLE || !table->next) - return; - - /* Name (name) */ - acpigen_write_name(table->name); - - /* Device Property list starts with the next entry */ - prop = table->next; - - /* Package (DP), default to assuming no properties or children */ - dp_count = acpigen_write_package(0); - - /* Print base properties */ - for (dp = prop; dp; dp = dp->next) { - if (dp->type == ACPI_DP_TYPE_CHILD) { - child_count++; - } else { - /* - * The UUID and package is only added when - * we come across the first property. This - * is to avoid creating a zero-length package - * in situations where there are only children. - */ - if (!prop_count) { - *dp_count += 2; - /* ToUUID (ACPI_DP_UUID) */ - acpigen_write_uuid(ACPI_DP_UUID); - /* - * Package (PROP), element count determined as - * it is populated - */ - prop_count = acpigen_write_package(0); - } - (*prop_count)++; - acpi_dp_write_property(dp); - } - } - if (prop_count) { - /* Package (PROP) length, if a package was written */ - acpigen_pop_len(); - } - - if (child_count) { - /* Update DP package count to 2 or 4 */ - *dp_count += 2; - /* ToUUID (ACPI_DP_CHILD_UUID) */ - acpigen_write_uuid(ACPI_DP_CHILD_UUID); - - /* Print child pointer properties */ - acpigen_write_package(child_count); - - for (dp = prop; dp; dp = dp->next) - if (dp->type == ACPI_DP_TYPE_CHILD) - acpi_dp_write_property(dp); - /* Package (CHILD) length */ - acpigen_pop_len(); - } - - /* Package (DP) length */ - acpigen_pop_len(); - - /* Recursively parse children into separate tables */ - for (dp = prop; dp; dp = dp->next) - if (dp->type == ACPI_DP_TYPE_CHILD) - acpi_dp_write(dp->child); - - /* Clean up */ - acpi_dp_free(table); -} - -static struct acpi_dp *acpi_dp_new(struct acpi_dp *dp, enum acpi_dp_type type, - const char *name) -{ - struct acpi_dp *new; - - new = malloc(sizeof(struct acpi_dp)); - if (!new) - return NULL; - - memset(new, 0, sizeof(*new)); - new->type = type; - new->name = name; - - if (dp) { - /* Add to end of property list */ - while (dp->next) - dp = dp->next; - dp->next = new; - } - - return new; -} - -struct acpi_dp *acpi_dp_new_table(const char *name) -{ - return acpi_dp_new(NULL, ACPI_DP_TYPE_TABLE, name); -} - -size_t acpi_dp_add_property_list(struct acpi_dp *dp, - const struct acpi_dp *property_list, - size_t property_count) -{ - const struct acpi_dp *prop; - size_t i, properties_added = 0; - - if (!dp || !property_list) - return 0; - - for (i = 0; i < property_count; i++) { - prop = &property_list[i]; - - if (prop->type == ACPI_DP_TYPE_UNKNOWN || !prop->name) - continue; - - switch (prop->type) { - case ACPI_DP_TYPE_INTEGER: - acpi_dp_add_integer(dp, prop->name, prop->integer); - break; - case ACPI_DP_TYPE_STRING: - acpi_dp_add_string(dp, prop->name, prop->string); - break; - case ACPI_DP_TYPE_REFERENCE: - acpi_dp_add_reference(dp, prop->name, prop->string); - break; - case ACPI_DP_TYPE_ARRAY: - acpi_dp_add_array(dp, prop->array); - break; - case ACPI_DP_TYPE_CHILD: - acpi_dp_add_child(dp, prop->name, prop->child); - break; - default: - continue; - } - - ++properties_added; - } - - return properties_added; -} - -struct acpi_dp *acpi_dp_add_integer(struct acpi_dp *dp, const char *name, - uint64_t value) -{ - if (!dp) - return NULL; - - struct acpi_dp *new = acpi_dp_new(dp, ACPI_DP_TYPE_INTEGER, name); - - if (new) - new->integer = value; - - return new; -} - -struct acpi_dp *acpi_dp_add_string(struct acpi_dp *dp, const char *name, - const char *string) -{ - if (!dp) - return NULL; - - struct acpi_dp *new = acpi_dp_new(dp, ACPI_DP_TYPE_STRING, name); - - if (new) - new->string = string; - - return new; -} - -struct acpi_dp *acpi_dp_add_reference(struct acpi_dp *dp, const char *name, - const char *reference) -{ - if (!dp) - return NULL; - - struct acpi_dp *new = acpi_dp_new(dp, ACPI_DP_TYPE_REFERENCE, name); - - if (new) - new->string = reference; - - return new; -} - -struct acpi_dp *acpi_dp_add_child(struct acpi_dp *dp, const char *name, - struct acpi_dp *child) -{ - struct acpi_dp *new; - - if (!dp || !child || child->type != ACPI_DP_TYPE_TABLE) - return NULL; - - new = acpi_dp_new(dp, ACPI_DP_TYPE_CHILD, name); - if (new) { - new->child = child; - new->string = child->name; - } - - return new; -} - -struct acpi_dp *acpi_dp_add_array(struct acpi_dp *dp, struct acpi_dp *array) -{ - struct acpi_dp *new; - - if (!dp || !array || array->type != ACPI_DP_TYPE_TABLE) - return NULL; - - new = acpi_dp_new(dp, ACPI_DP_TYPE_ARRAY, array->name); - if (new) - new->array = array; - - return new; -} - -struct acpi_dp *acpi_dp_add_integer_array(struct acpi_dp *dp, const char *name, - const uint64_t *array, int len) -{ - struct acpi_dp *dp_array; - int i; - - if (!dp || len <= 0) - return NULL; - - dp_array = acpi_dp_new_table(name); - if (!dp_array) - return NULL; - - for (i = 0; i < len; i++) - if (!acpi_dp_add_integer(dp_array, NULL, array[i])) - break; - - acpi_dp_add_array(dp, dp_array); - - return dp_array; -} - -struct acpi_dp *acpi_dp_add_gpio(struct acpi_dp *dp, const char *name, - const char *ref, int index, int pin, - int active_low) -{ - if (!dp) - return NULL; - - struct acpi_dp *gpio = acpi_dp_new_table(name); - - if (!gpio) - return NULL; - - /* The device that has _CRS containing GpioIO()/GpioInt() */ - acpi_dp_add_reference(gpio, NULL, ref); - - /* Index of the GPIO resource in _CRS starting from zero */ - acpi_dp_add_integer(gpio, NULL, index); - - /* Pin in the GPIO resource, typically zero */ - acpi_dp_add_integer(gpio, NULL, pin); - - /* Set if pin is active low */ - acpi_dp_add_integer(gpio, NULL, active_low); - - acpi_dp_add_array(dp, gpio); - - return gpio; -} - -/* - * This function writes a PCI device with _ADR object: - * Example: - * Scope (\_SB.PCI0) - * { - * Device (IGFX) - * { - * Name (_ADR, 0x0000000000000000) - * Method (_STA, 0, NotSerialized) { Return (status) } - * } - * } - */ -void acpi_device_write_pci_dev(const struct device *dev) -{ - const char *scope = acpi_device_scope(dev); - const char *name = acpi_device_name(dev); - - assert(dev->path.type == DEVICE_PATH_PCI); - assert(name); - assert(scope); - - acpigen_write_scope(scope); - acpigen_write_device(name); - - acpigen_write_ADR_pci_device(dev); - acpigen_write_STA(acpi_device_status(dev)); - - acpigen_pop_len(); /* Device */ - acpigen_pop_len(); /* Scope */ -} diff --git a/src/acpi/acpi_pld.c b/src/acpi/acpi_pld.c deleted file mode 100644 index a2d0dd7fe7..0000000000 --- a/src/acpi/acpi_pld.c +++ /dev/null @@ -1,160 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* This file is part of the coreboot project. */ - -#include -#include -#include -#include - -int acpi_pld_fill_usb(struct acpi_pld *pld, enum acpi_upc_type type, - struct acpi_pld_group *group) -{ - if (!pld) - return -1; - - memset(pld, 0, sizeof(struct acpi_pld)); - - /* Set defaults */ - pld->ignore_color = 1; - pld->panel = PLD_PANEL_UNKNOWN; - pld->vertical_position = PLD_VERTICAL_POSITION_CENTER; - pld->horizontal_position = PLD_HORIZONTAL_POSITION_CENTER; - pld->rotation = PLD_ROTATE_0; - pld->visible = 1; - pld->group.token = group->token; - pld->group.position = group->position; - - /* Set the shape based on port type */ - switch (type) { - case UPC_TYPE_A: - case UPC_TYPE_USB3_A: - case UPC_TYPE_USB3_POWER_B: - pld->shape = PLD_SHAPE_HORIZONTAL_RECTANGLE; - break; - case UPC_TYPE_MINI_AB: - case UPC_TYPE_USB3_B: - pld->shape = PLD_SHAPE_CHAMFERED; - break; - case UPC_TYPE_USB3_MICRO_B: - case UPC_TYPE_USB3_MICRO_AB: - pld->shape = PLD_SHAPE_HORIZONTAL_TRAPEZOID; - break; - case UPC_TYPE_C_USB2_ONLY: - case UPC_TYPE_C_USB2_SS_SWITCH: - case UPC_TYPE_C_USB2_SS: - pld->shape = PLD_SHAPE_OVAL; - break; - case UPC_TYPE_INTERNAL: - default: - pld->shape = PLD_SHAPE_UNKNOWN; - pld->visible = 0; - break; - } - - return 0; -} - -int acpi_pld_to_buffer(const struct acpi_pld *pld, uint8_t *buf, int buf_len) -{ - if (!pld || !buf) - return -1; - - memset(buf, 0, buf_len); - - /* [0] Revision (=2) */ - buf[0] = 0x2; - - if (pld->ignore_color) { - /* [1] Ignore Color */ - buf[0] |= 0x80; - } else { - /* [15:8] Red Color */ - buf[1] = pld->color_red; - /* [23:16] Green Color */ - buf[2] = pld->color_green; - /* [31:24] Blue Color */ - buf[3] = pld->color_blue; - } - - /* [47:32] Width */ - buf[4] = pld->width & 0xff; - buf[5] = pld->width >> 8; - - /* [63:48] Height */ - buf[6] = pld->height & 0xff; - buf[7] = pld->height >> 8; - - /* [64] User Visible */ - buf[8] |= (pld->visible & 0x1); - - /* [65] Dock */ - buf[8] |= (pld->dock & 0x1) << 1; - - /* [66] Lid */ - buf[8] |= (pld->lid & 0x1) << 2; - - /* [69:67] Panel */ - buf[8] |= (pld->panel & 0x7) << 3; - - /* [71:70] Vertical Position */ - buf[8] |= (pld->vertical_position & 0x3) << 6; - - /* [73:72] Horizontal Position */ - buf[9] |= (pld->horizontal_position & 0x3); - - /* [77:74] Shape */ - buf[9] |= (pld->shape & 0xf) << 2; - - /* [78] Orientation */ - buf[9] |= (pld->orientation & 0x1) << 6; - - /* [86:79] Group Token (incorrectly defined as 1 bit in ACPI 6.2A) */ - buf[9] |= (pld->group.token & 0x1) << 7; - buf[10] |= (pld->group.token >> 0x1) & 0x7f; - - /* [94:87] Group Position */ - buf[10] |= (pld->group.position & 0x1) << 7; - buf[11] |= (pld->group.position >> 0x1) & 0x7f; - - /* [95] Bay */ - buf[11] |= (pld->bay & 0x1) << 7; - - /* [96] Ejectable */ - buf[12] |= (pld->ejectable & 0x1); - - /* [97] Ejectable with OSPM help */ - buf[12] |= (pld->ejectable_ospm & 0x1) << 1; - - /* [105:98] Cabinet Number */ - buf[12] |= (pld->cabinet_number & 0x3f) << 2; - buf[13] |= (pld->cabinet_number >> 6) & 0x3; - - /* [113:106] Card Cage Number */ - buf[13] |= (pld->card_cage_number & 0x3f) << 2; - buf[14] |= (pld->card_cage_number >> 6) & 0x3; - - /* [114] PLD is a Reference Shape */ - buf[14] |= (pld->reference_shape & 0x1) << 2; - - /* [118:115] Rotation */ - buf[14] |= (pld->rotation & 0xf) << 3; - - /* [123:119] Draw Order */ - buf[14] |= (pld->draw_order & 0x1) << 7; - buf[15] |= (pld->draw_order >> 1) & 0xf; - - /* [127:124] Reserved */ - - /* Both 16 byte and 20 byte buffers are supported by the spec */ - if (buf_len == 20) { - /* [143:128] Vertical Offset */ - buf[16] = pld->vertical_offset & 0xff; - buf[17] = pld->vertical_offset >> 8; - - /* [159:144] Horizontal Offset */ - buf[18] = pld->horizontal_offset & 0xff; - buf[19] = pld->horizontal_offset >> 8; - } - - return 0; -} diff --git a/src/acpi/device.c b/src/acpi/device.c new file mode 100644 index 0000000000..6b067f3a0f --- /dev/null +++ b/src/acpi/device.c @@ -0,0 +1,961 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* This file is part of the coreboot project. */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#if CONFIG(GENERIC_GPIO_LIB) +#include +#endif + +#define ACPI_DP_UUID "daffd814-6eba-4d8c-8a91-bc9bbf4aa301" +#define ACPI_DP_CHILD_UUID "dbb8e3e6-5886-4ba6-8795-1319f52a966b" + +/* Write empty word value and return pointer to it */ +static void *acpi_device_write_zero_len(void) +{ + char *p = acpigen_get_current(); + acpigen_emit_word(0); + return p; +} + +/* Fill in length value from start to current at specified location */ +static void acpi_device_fill_from_len(char *ptr, char *start) +{ + uint16_t len = acpigen_get_current() - start; + ptr[0] = len & 0xff; + ptr[1] = (len >> 8) & 0xff; +} + +/* + * Fill in the length field with the value calculated from after + * the 16bit field to acpigen current as this length value does + * not include the length field itself. + */ +static void acpi_device_fill_len(void *ptr) +{ + acpi_device_fill_from_len(ptr, ptr + sizeof(uint16_t)); +} + +/* Locate and return the ACPI name for this device */ +const char *acpi_device_name(const struct device *dev) +{ + const struct device *pdev = dev; + const char *name = NULL; + + if (!dev) + return NULL; + + /* Check for device specific handler */ + if (dev->ops->acpi_name) + return dev->ops->acpi_name(dev); + + /* Walk up the tree to find if any parent can identify this device */ + while (pdev->bus) { + pdev = pdev->bus->dev; + if (!pdev) + break; + if (pdev->path.type == DEVICE_PATH_ROOT) + break; + if (pdev->ops && pdev->ops->acpi_name) + name = pdev->ops->acpi_name(dev); + if (name) + return name; + } + + return NULL; +} + +/* Locate and return the ACPI _HID (Hardware ID) for this device */ +const char *acpi_device_hid(const struct device *dev) +{ + if (!dev) + return NULL; + + /* Check for device specific handler */ + if (dev->ops->acpi_hid) + return dev->ops->acpi_hid(dev); + + /* + * Don't walk up the tree to find any parent that can identify this device, as + * PNP devices are hard to identify. + */ + + return NULL; +} + +/* + * Generate unique ID based on the ACPI path. + * Collisions on the same _HID are possible but very unlikely. + */ +uint32_t acpi_device_uid(const struct device *dev) +{ + const char *path = acpi_device_path(dev); + if (!path) + return 0; + + return CRC(path, strlen(path), crc32_byte); +} + +/* Recursive function to find the root device and print a path from there */ +static ssize_t acpi_device_path_fill(const struct device *dev, char *buf, + size_t buf_len, size_t cur) +{ + const char *name = acpi_device_name(dev); + ssize_t next = 0; + + if (!name) + return -1; + + /* + * Make sure this name segment will fit, including the path segment + * separator and possible NUL terminator if this is the last segment. + */ + if (!dev || (cur + strlen(name) + 2) > buf_len) + return cur; + + /* Walk up the tree to the root device */ + if (dev->path.type != DEVICE_PATH_ROOT && dev->bus && dev->bus->dev) + next = acpi_device_path_fill(dev->bus->dev, buf, buf_len, cur); + if (next < 0) + return next; + + /* Fill in the path from the root device */ + next += snprintf(buf + next, buf_len - next, "%s%s", + (dev->path.type == DEVICE_PATH_ROOT + || (strlen(name) == 0)) ? + "" : ".", name); + + return next; +} + +/* + * Warning: just as with dev_path() this uses a static buffer + * so should not be called mulitple times in one statement + */ +const char *acpi_device_path(const struct device *dev) +{ + static char buf[DEVICE_PATH_MAX] = {}; + + if (!dev) + return NULL; + + if (acpi_device_path_fill(dev, buf, sizeof(buf), 0) <= 0) + return NULL; + + return buf; +} + +/* Return the path of the parent device as the ACPI Scope for this device */ +const char *acpi_device_scope(const struct device *dev) +{ + static char buf[DEVICE_PATH_MAX] = {}; + + if (!dev || !dev->bus || !dev->bus->dev) + return NULL; + + if (acpi_device_path_fill(dev->bus->dev, buf, sizeof(buf), 0) <= 0) + return NULL; + + return buf; +} + +/* Concatenate the device path and provided name suffix */ +const char *acpi_device_path_join(const struct device *dev, const char *name) +{ + static char buf[DEVICE_PATH_MAX] = {}; + ssize_t len; + + if (!dev) + return NULL; + + /* Build the path of this device */ + len = acpi_device_path_fill(dev, buf, sizeof(buf), 0); + if (len <= 0) + return NULL; + + /* Ensure there is room for the added name, separator, and NUL */ + if ((len + strlen(name) + 2) > sizeof(buf)) + return NULL; + snprintf(buf + len, sizeof(buf) - len, ".%s", name); + + return buf; +} + +int acpi_device_status(const struct device *dev) +{ + if (!dev->enabled) + return ACPI_STATUS_DEVICE_ALL_OFF; + if (dev->hidden) + return ACPI_STATUS_DEVICE_HIDDEN_ON; + return ACPI_STATUS_DEVICE_ALL_ON; +} + + +/* Write the unique _UID based on ACPI device path. */ +void acpi_device_write_uid(const struct device *dev) +{ + acpigen_write_name_integer("_UID", acpi_device_uid(dev)); +} + +/* ACPI 6.1 section 6.4.3.6: Extended Interrupt Descriptor */ +void acpi_device_write_interrupt(const struct acpi_irq *irq) +{ + void *desc_length; + uint8_t flags; + + if (!irq || !irq->pin) + return; + + /* This is supported by GpioInt() but not Interrupt() */ + if (irq->polarity == ACPI_IRQ_ACTIVE_BOTH) + return; + + /* Byte 0: Descriptor Type */ + acpigen_emit_byte(ACPI_DESCRIPTOR_INTERRUPT); + + /* Byte 1-2: Length (filled in later) */ + desc_length = acpi_device_write_zero_len(); + + /* + * Byte 3: Flags + * [7:5]: Reserved + * [4]: Wake (0=NO_WAKE 1=WAKE) + * [3]: Sharing (0=EXCLUSIVE 1=SHARED) + * [2]: Polarity (0=HIGH 1=LOW) + * [1]: Mode (0=LEVEL 1=EDGE) + * [0]: Resource (0=PRODUCER 1=CONSUMER) + */ + flags = 1 << 0; /* ResourceConsumer */ + if (irq->mode == ACPI_IRQ_EDGE_TRIGGERED) + flags |= 1 << 1; + if (irq->polarity == ACPI_IRQ_ACTIVE_LOW) + flags |= 1 << 2; + if (irq->shared == ACPI_IRQ_SHARED) + flags |= 1 << 3; + if (irq->wake == ACPI_IRQ_WAKE) + flags |= 1 << 4; + acpigen_emit_byte(flags); + + /* Byte 4: Interrupt Table Entry Count */ + acpigen_emit_byte(1); + + /* Byte 5-8: Interrupt Number */ + acpigen_emit_dword(irq->pin); + + /* Fill in Descriptor Length (account for len word) */ + acpi_device_fill_len(desc_length); +} + +/* ACPI 6.1 section 6.4.3.8.1 - GPIO Interrupt or I/O */ +void acpi_device_write_gpio(const struct acpi_gpio *gpio) +{ + void *start, *desc_length; + void *pin_table_offset, *vendor_data_offset, *resource_offset; + uint16_t flags = 0; + int pin; + + if (!gpio || gpio->type > ACPI_GPIO_TYPE_IO) + return; + + start = acpigen_get_current(); + + /* Byte 0: Descriptor Type */ + acpigen_emit_byte(ACPI_DESCRIPTOR_GPIO); + + /* Byte 1-2: Length (fill in later) */ + desc_length = acpi_device_write_zero_len(); + + /* Byte 3: Revision ID */ + acpigen_emit_byte(ACPI_GPIO_REVISION_ID); + + /* Byte 4: GpioIo or GpioInt */ + acpigen_emit_byte(gpio->type); + + /* + * Byte 5-6: General Flags + * [15:1]: 0 => Reserved + * [0]: 1 => ResourceConsumer + */ + acpigen_emit_word(1 << 0); + + switch (gpio->type) { + case ACPI_GPIO_TYPE_INTERRUPT: + /* + * Byte 7-8: GPIO Interrupt Flags + * [15:5]: 0 => Reserved + * [4]: Wake (0=NO_WAKE 1=WAKE) + * [3]: Sharing (0=EXCLUSIVE 1=SHARED) + * [2:1]: Polarity (0=HIGH 1=LOW 2=BOTH) + * [0]: Mode (0=LEVEL 1=EDGE) + */ + if (gpio->irq.mode == ACPI_IRQ_EDGE_TRIGGERED) + flags |= 1 << 0; + if (gpio->irq.shared == ACPI_IRQ_SHARED) + flags |= 1 << 3; + if (gpio->irq.wake == ACPI_IRQ_WAKE) + flags |= 1 << 4; + + switch (gpio->irq.polarity) { + case ACPI_IRQ_ACTIVE_HIGH: + flags |= 0 << 1; + break; + case ACPI_IRQ_ACTIVE_LOW: + flags |= 1 << 1; + break; + case ACPI_IRQ_ACTIVE_BOTH: + flags |= 2 << 1; + break; + } + break; + + case ACPI_GPIO_TYPE_IO: + /* + * Byte 7-8: GPIO IO Flags + * [15:4]: 0 => Reserved + * [3]: Sharing (0=EXCLUSIVE 1=SHARED) + * [2]: 0 => Reserved + * [1:0]: IO Restriction + * 0 => IoRestrictionNone + * 1 => IoRestrictionInputOnly + * 2 => IoRestrictionOutputOnly + * 3 => IoRestrictionNoneAndPreserve + */ + flags |= gpio->io_restrict & 3; + if (gpio->io_shared) + flags |= 1 << 3; + break; + } + acpigen_emit_word(flags); + + /* + * Byte 9: Pin Configuration + * 0x01 => Default (no configuration applied) + * 0x02 => Pull-up + * 0x03 => Pull-down + * 0x04-0x7F => Reserved + * 0x80-0xff => Vendor defined + */ + acpigen_emit_byte(gpio->pull); + + /* Byte 10-11: Output Drive Strength in 1/100 mA */ + acpigen_emit_word(gpio->output_drive_strength); + + /* Byte 12-13: Debounce Timeout in 1/100 ms */ + acpigen_emit_word(gpio->interrupt_debounce_timeout); + + /* Byte 14-15: Pin Table Offset, relative to start */ + pin_table_offset = acpi_device_write_zero_len(); + + /* Byte 16: Reserved */ + acpigen_emit_byte(0); + + /* Byte 17-18: Resource Source Name Offset, relative to start */ + resource_offset = acpi_device_write_zero_len(); + + /* Byte 19-20: Vendor Data Offset, relative to start */ + vendor_data_offset = acpi_device_write_zero_len(); + + /* Byte 21-22: Vendor Data Length */ + acpigen_emit_word(0); + + /* Fill in Pin Table Offset */ + acpi_device_fill_from_len(pin_table_offset, start); + + /* Pin Table, one word for each pin */ + for (pin = 0; pin < gpio->pin_count; pin++) { + uint16_t acpi_pin = gpio->pins[pin]; +#if CONFIG(GENERIC_GPIO_LIB) + acpi_pin = gpio_acpi_pin(acpi_pin); +#endif + acpigen_emit_word(acpi_pin); + } + + /* Fill in Resource Source Name Offset */ + acpi_device_fill_from_len(resource_offset, start); + + /* Resource Source Name String */ +#if CONFIG(GENERIC_GPIO_LIB) + acpigen_emit_string(gpio->resource ? : gpio_acpi_path(gpio->pins[0])); +#else + acpigen_emit_string(gpio->resource); +#endif + + /* Fill in Vendor Data Offset */ + acpi_device_fill_from_len(vendor_data_offset, start); + + /* Fill in GPIO Descriptor Length (account for len word) */ + acpi_device_fill_len(desc_length); +} + +/* ACPI 6.1 section 6.4.3.8.2.1 - I2cSerialBus() */ +void acpi_device_write_i2c(const struct acpi_i2c *i2c) +{ + void *desc_length, *type_length; + + /* Byte 0: Descriptor Type */ + acpigen_emit_byte(ACPI_DESCRIPTOR_SERIAL_BUS); + + /* Byte 1+2: Length (filled in later) */ + desc_length = acpi_device_write_zero_len(); + + /* Byte 3: Revision ID */ + acpigen_emit_byte(ACPI_I2C_SERIAL_BUS_REVISION_ID); + + /* Byte 4: Resource Source Index is Reserved */ + acpigen_emit_byte(0); + + /* Byte 5: Serial Bus Type is I2C */ + acpigen_emit_byte(ACPI_SERIAL_BUS_TYPE_I2C); + + /* + * Byte 6: Flags + * [7:2]: 0 => Reserved + * [1]: 1 => ResourceConsumer + * [0]: 0 => ControllerInitiated + */ + acpigen_emit_byte(1 << 1); + + /* + * Byte 7-8: Type Specific Flags + * [15:1]: 0 => Reserved + * [0]: 0 => 7bit, 1 => 10bit + */ + acpigen_emit_word(i2c->mode_10bit); + + /* Byte 9: Type Specific Revision ID */ + acpigen_emit_byte(ACPI_I2C_TYPE_SPECIFIC_REVISION_ID); + + /* Byte 10-11: I2C Type Data Length */ + type_length = acpi_device_write_zero_len(); + + /* Byte 12-15: I2C Bus Speed */ + acpigen_emit_dword(i2c->speed); + + /* Byte 16-17: I2C Slave Address */ + acpigen_emit_word(i2c->address); + + /* Fill in Type Data Length */ + acpi_device_fill_len(type_length); + + /* Byte 18+: ResourceSource */ + acpigen_emit_string(i2c->resource); + + /* Fill in I2C Descriptor Length */ + acpi_device_fill_len(desc_length); +} + +/* ACPI 6.1 section 6.4.3.8.2.2 - SpiSerialBus() */ +void acpi_device_write_spi(const struct acpi_spi *spi) +{ + void *desc_length, *type_length; + uint16_t flags = 0; + + /* Byte 0: Descriptor Type */ + acpigen_emit_byte(ACPI_DESCRIPTOR_SERIAL_BUS); + + /* Byte 1+2: Length (filled in later) */ + desc_length = acpi_device_write_zero_len(); + + /* Byte 3: Revision ID */ + acpigen_emit_byte(ACPI_SPI_SERIAL_BUS_REVISION_ID); + + /* Byte 4: Resource Source Index is Reserved */ + acpigen_emit_byte(0); + + /* Byte 5: Serial Bus Type is SPI */ + acpigen_emit_byte(ACPI_SERIAL_BUS_TYPE_SPI); + + /* + * Byte 6: Flags + * [7:2]: 0 => Reserved + * [1]: 1 => ResourceConsumer + * [0]: 0 => ControllerInitiated + */ + acpigen_emit_byte(1 << 1); + + /* + * Byte 7-8: Type Specific Flags + * [15:2]: 0 => Reserved + * [1]: 0 => ActiveLow, 1 => ActiveHigh + * [0]: 0 => FourWire, 1 => ThreeWire + */ + if (spi->wire_mode == SPI_3_WIRE_MODE) + flags |= 1 << 0; + if (spi->device_select_polarity == SPI_POLARITY_HIGH) + flags |= 1 << 1; + acpigen_emit_word(flags); + + /* Byte 9: Type Specific Revision ID */ + acpigen_emit_byte(ACPI_SPI_TYPE_SPECIFIC_REVISION_ID); + + /* Byte 10-11: SPI Type Data Length */ + type_length = acpi_device_write_zero_len(); + + /* Byte 12-15: Connection Speed */ + acpigen_emit_dword(spi->speed); + + /* Byte 16: Data Bit Length */ + acpigen_emit_byte(spi->data_bit_length); + + /* Byte 17: Clock Phase */ + acpigen_emit_byte(spi->clock_phase); + + /* Byte 18: Clock Polarity */ + acpigen_emit_byte(spi->clock_polarity); + + /* Byte 19-20: Device Selection */ + acpigen_emit_word(spi->device_select); + + /* Fill in Type Data Length */ + acpi_device_fill_len(type_length); + + /* Byte 21+: ResourceSource String */ + acpigen_emit_string(spi->resource); + + /* Fill in SPI Descriptor Length */ + acpi_device_fill_len(desc_length); +} + +/* PowerResource() with Enable and/or Reset control */ +void acpi_device_add_power_res(const struct acpi_power_res_params *params) +{ + static const char * const power_res_dev_states[] = { "_PR0", "_PR3" }; + unsigned int reset_gpio = params->reset_gpio ? params->reset_gpio->pins[0] : 0; + unsigned int enable_gpio = params->enable_gpio ? params->enable_gpio->pins[0] : 0; + unsigned int stop_gpio = params->stop_gpio ? params->stop_gpio->pins[0] : 0; + + if (!reset_gpio && !enable_gpio && !stop_gpio) + return; + + /* PowerResource (PRIC, 0, 0) */ + acpigen_write_power_res("PRIC", 0, 0, power_res_dev_states, + ARRAY_SIZE(power_res_dev_states)); + + /* Method (_STA, 0, NotSerialized) { Return (0x1) } */ + acpigen_write_STA(0x1); + + /* Method (_ON, 0, Serialized) */ + acpigen_write_method_serialized("_ON", 0); + if (reset_gpio) + acpigen_enable_tx_gpio(params->reset_gpio); + if (enable_gpio) { + acpigen_enable_tx_gpio(params->enable_gpio); + if (params->enable_delay_ms) + acpigen_write_sleep(params->enable_delay_ms); + } + if (reset_gpio) { + acpigen_disable_tx_gpio(params->reset_gpio); + if (params->reset_delay_ms) + acpigen_write_sleep(params->reset_delay_ms); + } + if (stop_gpio) { + acpigen_disable_tx_gpio(params->stop_gpio); + if (params->stop_delay_ms) + acpigen_write_sleep(params->stop_delay_ms); + } + acpigen_pop_len(); /* _ON method */ + + /* Method (_OFF, 0, Serialized) */ + acpigen_write_method_serialized("_OFF", 0); + if (stop_gpio) { + acpigen_enable_tx_gpio(params->stop_gpio); + if (params->stop_off_delay_ms) + acpigen_write_sleep(params->stop_off_delay_ms); + } + if (reset_gpio) { + acpigen_enable_tx_gpio(params->reset_gpio); + if (params->reset_off_delay_ms) + acpigen_write_sleep(params->reset_off_delay_ms); + } + if (enable_gpio) { + acpigen_disable_tx_gpio(params->enable_gpio); + if (params->enable_off_delay_ms) + acpigen_write_sleep(params->enable_off_delay_ms); + } + acpigen_pop_len(); /* _OFF method */ + + acpigen_pop_len(); /* PowerResource PRIC */ +} + +static void acpi_dp_write_array(const struct acpi_dp *array); +static void acpi_dp_write_value(const struct acpi_dp *prop) +{ + switch (prop->type) { + case ACPI_DP_TYPE_INTEGER: + acpigen_write_integer(prop->integer); + break; + case ACPI_DP_TYPE_STRING: + case ACPI_DP_TYPE_CHILD: + acpigen_write_string(prop->string); + break; + case ACPI_DP_TYPE_REFERENCE: + acpigen_emit_namestring(prop->string); + break; + case ACPI_DP_TYPE_ARRAY: + acpi_dp_write_array(prop->array); + break; + default: + break; + } +} + +/* Package (2) { "prop->name", VALUE } */ +static void acpi_dp_write_property(const struct acpi_dp *prop) +{ + acpigen_write_package(2); + acpigen_write_string(prop->name); + acpi_dp_write_value(prop); + acpigen_pop_len(); +} + +/* Write array of Device Properties */ +static void acpi_dp_write_array(const struct acpi_dp *array) +{ + const struct acpi_dp *dp; + char *pkg_count; + + /* Package element count determined as it is populated */ + pkg_count = acpigen_write_package(0); + + /* + * Only acpi_dp of type DP_TYPE_TABLE is allowed to be an array. + * DP_TYPE_TABLE does not have a value to be written. Thus, start + * the loop from next type in the array. + */ + for (dp = array->next; dp; dp = dp->next) { + acpi_dp_write_value(dp); + (*pkg_count)++; + } + + acpigen_pop_len(); +} + +static void acpi_dp_free(struct acpi_dp *dp) +{ + while (dp) { + struct acpi_dp *p = dp->next; + + switch (dp->type) { + case ACPI_DP_TYPE_CHILD: + acpi_dp_free(dp->child); + break; + case ACPI_DP_TYPE_ARRAY: + acpi_dp_free(dp->array); + break; + default: + break; + } + + free(dp); + dp = p; + } +} + +void acpi_dp_write(struct acpi_dp *table) +{ + struct acpi_dp *dp, *prop; + char *dp_count, *prop_count = NULL; + int child_count = 0; + + if (!table || table->type != ACPI_DP_TYPE_TABLE || !table->next) + return; + + /* Name (name) */ + acpigen_write_name(table->name); + + /* Device Property list starts with the next entry */ + prop = table->next; + + /* Package (DP), default to assuming no properties or children */ + dp_count = acpigen_write_package(0); + + /* Print base properties */ + for (dp = prop; dp; dp = dp->next) { + if (dp->type == ACPI_DP_TYPE_CHILD) { + child_count++; + } else { + /* + * The UUID and package is only added when + * we come across the first property. This + * is to avoid creating a zero-length package + * in situations where there are only children. + */ + if (!prop_count) { + *dp_count += 2; + /* ToUUID (ACPI_DP_UUID) */ + acpigen_write_uuid(ACPI_DP_UUID); + /* + * Package (PROP), element count determined as + * it is populated + */ + prop_count = acpigen_write_package(0); + } + (*prop_count)++; + acpi_dp_write_property(dp); + } + } + if (prop_count) { + /* Package (PROP) length, if a package was written */ + acpigen_pop_len(); + } + + if (child_count) { + /* Update DP package count to 2 or 4 */ + *dp_count += 2; + /* ToUUID (ACPI_DP_CHILD_UUID) */ + acpigen_write_uuid(ACPI_DP_CHILD_UUID); + + /* Print child pointer properties */ + acpigen_write_package(child_count); + + for (dp = prop; dp; dp = dp->next) + if (dp->type == ACPI_DP_TYPE_CHILD) + acpi_dp_write_property(dp); + /* Package (CHILD) length */ + acpigen_pop_len(); + } + + /* Package (DP) length */ + acpigen_pop_len(); + + /* Recursively parse children into separate tables */ + for (dp = prop; dp; dp = dp->next) + if (dp->type == ACPI_DP_TYPE_CHILD) + acpi_dp_write(dp->child); + + /* Clean up */ + acpi_dp_free(table); +} + +static struct acpi_dp *acpi_dp_new(struct acpi_dp *dp, enum acpi_dp_type type, + const char *name) +{ + struct acpi_dp *new; + + new = malloc(sizeof(struct acpi_dp)); + if (!new) + return NULL; + + memset(new, 0, sizeof(*new)); + new->type = type; + new->name = name; + + if (dp) { + /* Add to end of property list */ + while (dp->next) + dp = dp->next; + dp->next = new; + } + + return new; +} + +struct acpi_dp *acpi_dp_new_table(const char *name) +{ + return acpi_dp_new(NULL, ACPI_DP_TYPE_TABLE, name); +} + +size_t acpi_dp_add_property_list(struct acpi_dp *dp, + const struct acpi_dp *property_list, + size_t property_count) +{ + const struct acpi_dp *prop; + size_t i, properties_added = 0; + + if (!dp || !property_list) + return 0; + + for (i = 0; i < property_count; i++) { + prop = &property_list[i]; + + if (prop->type == ACPI_DP_TYPE_UNKNOWN || !prop->name) + continue; + + switch (prop->type) { + case ACPI_DP_TYPE_INTEGER: + acpi_dp_add_integer(dp, prop->name, prop->integer); + break; + case ACPI_DP_TYPE_STRING: + acpi_dp_add_string(dp, prop->name, prop->string); + break; + case ACPI_DP_TYPE_REFERENCE: + acpi_dp_add_reference(dp, prop->name, prop->string); + break; + case ACPI_DP_TYPE_ARRAY: + acpi_dp_add_array(dp, prop->array); + break; + case ACPI_DP_TYPE_CHILD: + acpi_dp_add_child(dp, prop->name, prop->child); + break; + default: + continue; + } + + ++properties_added; + } + + return properties_added; +} + +struct acpi_dp *acpi_dp_add_integer(struct acpi_dp *dp, const char *name, + uint64_t value) +{ + if (!dp) + return NULL; + + struct acpi_dp *new = acpi_dp_new(dp, ACPI_DP_TYPE_INTEGER, name); + + if (new) + new->integer = value; + + return new; +} + +struct acpi_dp *acpi_dp_add_string(struct acpi_dp *dp, const char *name, + const char *string) +{ + if (!dp) + return NULL; + + struct acpi_dp *new = acpi_dp_new(dp, ACPI_DP_TYPE_STRING, name); + + if (new) + new->string = string; + + return new; +} + +struct acpi_dp *acpi_dp_add_reference(struct acpi_dp *dp, const char *name, + const char *reference) +{ + if (!dp) + return NULL; + + struct acpi_dp *new = acpi_dp_new(dp, ACPI_DP_TYPE_REFERENCE, name); + + if (new) + new->string = reference; + + return new; +} + +struct acpi_dp *acpi_dp_add_child(struct acpi_dp *dp, const char *name, + struct acpi_dp *child) +{ + struct acpi_dp *new; + + if (!dp || !child || child->type != ACPI_DP_TYPE_TABLE) + return NULL; + + new = acpi_dp_new(dp, ACPI_DP_TYPE_CHILD, name); + if (new) { + new->child = child; + new->string = child->name; + } + + return new; +} + +struct acpi_dp *acpi_dp_add_array(struct acpi_dp *dp, struct acpi_dp *array) +{ + struct acpi_dp *new; + + if (!dp || !array || array->type != ACPI_DP_TYPE_TABLE) + return NULL; + + new = acpi_dp_new(dp, ACPI_DP_TYPE_ARRAY, array->name); + if (new) + new->array = array; + + return new; +} + +struct acpi_dp *acpi_dp_add_integer_array(struct acpi_dp *dp, const char *name, + const uint64_t *array, int len) +{ + struct acpi_dp *dp_array; + int i; + + if (!dp || len <= 0) + return NULL; + + dp_array = acpi_dp_new_table(name); + if (!dp_array) + return NULL; + + for (i = 0; i < len; i++) + if (!acpi_dp_add_integer(dp_array, NULL, array[i])) + break; + + acpi_dp_add_array(dp, dp_array); + + return dp_array; +} + +struct acpi_dp *acpi_dp_add_gpio(struct acpi_dp *dp, const char *name, + const char *ref, int index, int pin, + int active_low) +{ + if (!dp) + return NULL; + + struct acpi_dp *gpio = acpi_dp_new_table(name); + + if (!gpio) + return NULL; + + /* The device that has _CRS containing GpioIO()/GpioInt() */ + acpi_dp_add_reference(gpio, NULL, ref); + + /* Index of the GPIO resource in _CRS starting from zero */ + acpi_dp_add_integer(gpio, NULL, index); + + /* Pin in the GPIO resource, typically zero */ + acpi_dp_add_integer(gpio, NULL, pin); + + /* Set if pin is active low */ + acpi_dp_add_integer(gpio, NULL, active_low); + + acpi_dp_add_array(dp, gpio); + + return gpio; +} + +/* + * This function writes a PCI device with _ADR object: + * Example: + * Scope (\_SB.PCI0) + * { + * Device (IGFX) + * { + * Name (_ADR, 0x0000000000000000) + * Method (_STA, 0, NotSerialized) { Return (status) } + * } + * } + */ +void acpi_device_write_pci_dev(const struct device *dev) +{ + const char *scope = acpi_device_scope(dev); + const char *name = acpi_device_name(dev); + + assert(dev->path.type == DEVICE_PATH_PCI); + assert(name); + assert(scope); + + acpigen_write_scope(scope); + acpigen_write_device(name); + + acpigen_write_ADR_pci_device(dev); + acpigen_write_STA(acpi_device_status(dev)); + + acpigen_pop_len(); /* Device */ + acpigen_pop_len(); /* Scope */ +} diff --git a/src/acpi/pld.c b/src/acpi/pld.c new file mode 100644 index 0000000000..a2d0dd7fe7 --- /dev/null +++ b/src/acpi/pld.c @@ -0,0 +1,160 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* This file is part of the coreboot project. */ + +#include +#include +#include +#include + +int acpi_pld_fill_usb(struct acpi_pld *pld, enum acpi_upc_type type, + struct acpi_pld_group *group) +{ + if (!pld) + return -1; + + memset(pld, 0, sizeof(struct acpi_pld)); + + /* Set defaults */ + pld->ignore_color = 1; + pld->panel = PLD_PANEL_UNKNOWN; + pld->vertical_position = PLD_VERTICAL_POSITION_CENTER; + pld->horizontal_position = PLD_HORIZONTAL_POSITION_CENTER; + pld->rotation = PLD_ROTATE_0; + pld->visible = 1; + pld->group.token = group->token; + pld->group.position = group->position; + + /* Set the shape based on port type */ + switch (type) { + case UPC_TYPE_A: + case UPC_TYPE_USB3_A: + case UPC_TYPE_USB3_POWER_B: + pld->shape = PLD_SHAPE_HORIZONTAL_RECTANGLE; + break; + case UPC_TYPE_MINI_AB: + case UPC_TYPE_USB3_B: + pld->shape = PLD_SHAPE_CHAMFERED; + break; + case UPC_TYPE_USB3_MICRO_B: + case UPC_TYPE_USB3_MICRO_AB: + pld->shape = PLD_SHAPE_HORIZONTAL_TRAPEZOID; + break; + case UPC_TYPE_C_USB2_ONLY: + case UPC_TYPE_C_USB2_SS_SWITCH: + case UPC_TYPE_C_USB2_SS: + pld->shape = PLD_SHAPE_OVAL; + break; + case UPC_TYPE_INTERNAL: + default: + pld->shape = PLD_SHAPE_UNKNOWN; + pld->visible = 0; + break; + } + + return 0; +} + +int acpi_pld_to_buffer(const struct acpi_pld *pld, uint8_t *buf, int buf_len) +{ + if (!pld || !buf) + return -1; + + memset(buf, 0, buf_len); + + /* [0] Revision (=2) */ + buf[0] = 0x2; + + if (pld->ignore_color) { + /* [1] Ignore Color */ + buf[0] |= 0x80; + } else { + /* [15:8] Red Color */ + buf[1] = pld->color_red; + /* [23:16] Green Color */ + buf[2] = pld->color_green; + /* [31:24] Blue Color */ + buf[3] = pld->color_blue; + } + + /* [47:32] Width */ + buf[4] = pld->width & 0xff; + buf[5] = pld->width >> 8; + + /* [63:48] Height */ + buf[6] = pld->height & 0xff; + buf[7] = pld->height >> 8; + + /* [64] User Visible */ + buf[8] |= (pld->visible & 0x1); + + /* [65] Dock */ + buf[8] |= (pld->dock & 0x1) << 1; + + /* [66] Lid */ + buf[8] |= (pld->lid & 0x1) << 2; + + /* [69:67] Panel */ + buf[8] |= (pld->panel & 0x7) << 3; + + /* [71:70] Vertical Position */ + buf[8] |= (pld->vertical_position & 0x3) << 6; + + /* [73:72] Horizontal Position */ + buf[9] |= (pld->horizontal_position & 0x3); + + /* [77:74] Shape */ + buf[9] |= (pld->shape & 0xf) << 2; + + /* [78] Orientation */ + buf[9] |= (pld->orientation & 0x1) << 6; + + /* [86:79] Group Token (incorrectly defined as 1 bit in ACPI 6.2A) */ + buf[9] |= (pld->group.token & 0x1) << 7; + buf[10] |= (pld->group.token >> 0x1) & 0x7f; + + /* [94:87] Group Position */ + buf[10] |= (pld->group.position & 0x1) << 7; + buf[11] |= (pld->group.position >> 0x1) & 0x7f; + + /* [95] Bay */ + buf[11] |= (pld->bay & 0x1) << 7; + + /* [96] Ejectable */ + buf[12] |= (pld->ejectable & 0x1); + + /* [97] Ejectable with OSPM help */ + buf[12] |= (pld->ejectable_ospm & 0x1) << 1; + + /* [105:98] Cabinet Number */ + buf[12] |= (pld->cabinet_number & 0x3f) << 2; + buf[13] |= (pld->cabinet_number >> 6) & 0x3; + + /* [113:106] Card Cage Number */ + buf[13] |= (pld->card_cage_number & 0x3f) << 2; + buf[14] |= (pld->card_cage_number >> 6) & 0x3; + + /* [114] PLD is a Reference Shape */ + buf[14] |= (pld->reference_shape & 0x1) << 2; + + /* [118:115] Rotation */ + buf[14] |= (pld->rotation & 0xf) << 3; + + /* [123:119] Draw Order */ + buf[14] |= (pld->draw_order & 0x1) << 7; + buf[15] |= (pld->draw_order >> 1) & 0xf; + + /* [127:124] Reserved */ + + /* Both 16 byte and 20 byte buffers are supported by the spec */ + if (buf_len == 20) { + /* [143:128] Vertical Offset */ + buf[16] = pld->vertical_offset & 0xff; + buf[17] = pld->vertical_offset >> 8; + + /* [159:144] Horizontal Offset */ + buf[18] = pld->horizontal_offset & 0xff; + buf[19] = pld->horizontal_offset >> 8; + } + + return 0; +} -- cgit v1.2.3