gpio.h File Reference

#include <soc/gpio.h>
#include "gpio_defs.h"
#include <types.h>
#include <device/device.h>

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Data Structures
struct	pad_config
struct	reset_mapping
struct	pad_group
struct	vw_entries
struct	pad_community
struct	gpi_status
struct	pmc_to_gpio_route
struct	gpio_lock_config

Macros
#define	MISCCFG_GPVNNREQEN   (1 << 7)
#define	MISCCFG_GPPGCBDPCGEN   (1 << 6)
#define	MISCCFG_GPSIDEDPCGEN   (1 << 5)
#define	MISCCFG_GPRCOMPCDLCGEN   (1 << 4)
#define	MISCCFG_GPRTCDLCGEN   (1 << 3)
#define	MISCCFG_GSXSLCGEN   (1 << 2)
#define	MISCCFG_GPDPCGEN   (1 << 1)
#define	MISCCFG_GPDLCGEN   (1 << 0)
#define	INTEL_GPP_BASE(first_of_community, start_of_group, end_of_group, group_pad_base)
#define	PAD_BASE_NONE   -1
#define	INTEL_GPP(first_of_community, start_of_group, end_of_group)

Typedefs
typedef uint32_t	gpio_t

Enumerations
enum	gpio_lock_action { GPIO_UNLOCK = 0x0 , GPIO_LOCK_CONFIG = 0x1 , GPIO_LOCK_TX = 0x2 , GPIO_LOCK_FULL = GPIO_LOCK_CONFIG | GPIO_LOCK_TX }

Functions
const struct pad_community *	soc_gpio_get_community (size_t *num_communities)
void	gpi_clear_get_smi_status (struct gpi_status *sts)
int	gpi_status_get (const struct gpi_status *sts, gpio_t gpi)
void	gpio_configure_pads (const struct pad_config *cfg, size_t num_pads)
void	gpio_configure_pads_with_override (const struct pad_config *base_cfg, size_t base_num_pads, const struct pad_config *override_cfg, size_t override_num_pads)
void *	gpio_dwx_address (const gpio_t pad)
int	gpio_lock_pad (const gpio_t pad, enum gpio_lock_action lock_action)
int	gpio_lock_pads (const struct gpio_lock_config *pad_list, const size_t count)
const struct gpio_lock_config *	soc_gpio_lock_config (size_t *num)
const struct pmc_to_gpio_route *	soc_pmc_gpio_routes (size_t *num)
void	gpio_route_gpe (uint8_t gpe0b, uint8_t gpe0c, uint8_t gpe0d)
uint8_t	gpio_get_pad_portid (const gpio_t pad)
uint32_t	soc_gpio_pad_config_fixup (const struct pad_config *cfg, int dw_reg, uint32_t reg_val)
void	gpi_clear_int_cfg (void)
void	gpio_pm_configure (const uint8_t *misccfg_pm_values, size_t num)
void	block_gpio_enable (struct device *dev)
bool	gpio_routes_ioapic_irq (unsigned int irq)
size_t	gpio_get_index_in_group (gpio_t pad)
bool	gpio_get_vw_info (gpio_t pad, unsigned int *vw_index, unsigned int *vw_bit)
unsigned int	gpio_get_pad_cpu_portid (gpio_t pad)

Macro Definition Documentation

INTEL_GPP

#define INTEL_GPP	(		first_of_community,
			start_of_group,
			end_of_group
	)

Value:

        INTEL_GPP_BASE(first_of_community, start_of_group, end_of_group,\
                       PAD_BASE_NONE)

Definition at line 49 of file gpio.h.

INTEL_GPP_BASE

#define INTEL_GPP_BASE	(		first_of_community,
			start_of_group,
			end_of_group,
			group_pad_base
	)

Value:

        {                                                               \
                .first_pad = (start_of_group) - (first_of_community),   \
                .size = (end_of_group) - (start_of_group) + 1,          \
                .acpi_pad_base = (group_pad_base),                      \
        }

Definition at line 34 of file gpio.h.

MISCCFG_GPDLCGEN

#define MISCCFG_GPDLCGEN   (1 << 0)

Definition at line 24 of file gpio.h.

MISCCFG_GPDPCGEN

#define MISCCFG_GPDPCGEN   (1 << 1)

Definition at line 22 of file gpio.h.

MISCCFG_GPPGCBDPCGEN

#define MISCCFG_GPPGCBDPCGEN   (1 << 6)

Definition at line 12 of file gpio.h.

MISCCFG_GPRCOMPCDLCGEN

#define MISCCFG_GPRCOMPCDLCGEN   (1 << 4)

Definition at line 16 of file gpio.h.

MISCCFG_GPRTCDLCGEN

#define MISCCFG_GPRTCDLCGEN   (1 << 3)

Definition at line 18 of file gpio.h.

MISCCFG_GPSIDEDPCGEN

#define MISCCFG_GPSIDEDPCGEN   (1 << 5)

Definition at line 14 of file gpio.h.

MISCCFG_GPVNNREQEN

#define MISCCFG_GPVNNREQEN   (1 << 7)

Definition at line 10 of file gpio.h.

MISCCFG_GSXSLCGEN

#define MISCCFG_GSXSLCGEN   (1 << 2)

Definition at line 20 of file gpio.h.

PAD_BASE_NONE

#define PAD_BASE_NONE   -1

Definition at line 46 of file gpio.h.

Typedef Documentation

gpio_t

typedef uint32_t gpio_t

Definition at line 66 of file gpio.h.

Enumeration Type Documentation

gpio_lock_action

enum gpio_lock_action

Enumerator
GPIO_UNLOCK
GPIO_LOCK_CONFIG
GPIO_LOCK_TX
GPIO_LOCK_FULL

Definition at line 68 of file gpio.h.

Function Documentation

block_gpio_enable()

void block_gpio_enable

(

struct device *

dev

)

Definition at line 24 of file gpio_dev.c.

References assert, block_gpio_ops, DEVICE_PATH_GPIO, device::ops, device::path, and device_path::type.

Referenced by chip_enable_dev(), enable_dev(), soc_enable(), and soc_enable_dev().

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gpi_clear_get_smi_status()

void gpi_clear_get_smi_status

(

struct gpi_status *

sts

)

Definition at line 700 of file gpio.c.

References CONFIG, DEBUG_SMI, GPI_SMI_EN_OFFSET, GPI_SMI_STS_OFFSET, pad_community::gpi_status_offset, gpi_status::grp, pad_community::num_gpi_regs, pad_community::num_groups, pcr_read32(), pcr_write32(), pad_community::port, print_gpi_status(), and soc_gpio_get_community().

Referenced by smihandler_southbridge_gpi().

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gpi_clear_int_cfg()

void gpi_clear_int_cfg

(

void

)

Definition at line 820 of file gpio.c.

References GPI_IE_OFFSET, GPI_IS_OFFSET, pad_community::num_gpi_regs, pad_community::num_groups, pcr_read32(), pcr_write32(), pad_community::port, and soc_gpio_get_community().

Referenced by bootblock_pch_init(), and soc_init().

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gpi_status_get()

int gpi_status_get	(	const struct gpi_status *	sts,
		gpio_t	gpi
	)

Definition at line 733 of file gpio.c.

References pad_community::gpi_status_offset, gpio_bitmask_within_group(), gpio_get_community(), gpio_group_index(), gpi_status::grp, and relative_pad_in_comm().

Referenced by mainboard_smi_gpi_handler().

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gpio_configure_pads()

void gpio_configure_pads	(	const struct pad_config *	cfg,
		size_t	num_pads
	)

Definition at line 353 of file gpio.c.

References gpio_configure_pad().

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gpio_configure_pads_with_override()

void gpio_configure_pads_with_override	(	const struct pad_config *	base_cfg,
		size_t	base_num_pads,
		const struct pad_config *	override_cfg,
		size_t	override_num_pads
	)

Definition at line 383 of file gpio.c.

References c, gpio_configure_pad(), and gpio_get_config().

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gpio_dwx_address()

void* gpio_dwx_address

(

const gpio_t

pad

)

Definition at line 398 of file gpio.c.

References gpio_get_community(), pad_config_offset(), pcr_reg_address(), and pad_community::port.

Referenced by acpigen_soc_get_gpio_val(), acpigen_soc_set_gpio_val(), fw_config_handle(), and soc_fill_gnvs().

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gpio_get_index_in_group()

size_t gpio_get_index_in_group

(

gpio_t

pad

)

Definition at line 861 of file gpio.c.

References gpio_get_community(), gpio_within_group(), and relative_pad_in_comm().

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gpio_get_pad_cpu_portid()

unsigned int gpio_get_pad_cpu_portid

(

gpio_t

pad

)

Definition at line 977 of file gpio.c.

References pad_community::cpu_port, and gpio_get_community().

Referenced by calc_bias_ctrl_reg_value().

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gpio_get_pad_portid()

uint8_t gpio_get_pad_portid

(

const gpio_t

pad

)

Definition at line 411 of file gpio.c.

References gpio_get_community(), and pad_community::port.

Referenced by soc_fill_gnvs().

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gpio_get_vw_info()

bool gpio_get_vw_info	(	gpio_t	pad,
		unsigned int *	vw_index,
		unsigned int *	vw_bit
	)

Definition at line 953 of file gpio.c.

References vw_entries::first_pad, gpio_get_community(), vw_entries::last_pad, pad_community::num_vw_entries, offset, pad_community::vw_base, and pad_community::vw_entries.

Referenced by calc_bias_ctrl_reg_value().

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gpio_lock_pad()

int gpio_lock_pad	(	const gpio_t	pad,
		enum gpio_lock_action	lock_action
	)

Definition at line 618 of file gpio.c.

References CONFIG, ENV_ROMSTAGE_OR_BEFORE, ENV_SMM, gpio_lock_pads(), gpio_non_smm_lock_pad(), gpio_lock_config::lock_action, gpio_lock_config::pad, and vboot_recovery_mode_enabled().

Referenced by gpio_configure_pad(), and mainboard_config_cbi_wp().

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gpio_lock_pads()

int gpio_lock_pads	(	const struct gpio_lock_config *	pad_list,
		const size_t	count
	)

Definition at line 504 of file gpio.c.

References BIOS_ERR, CONFIG, count, ENV_SMM, gpio_bitmask_within_group(), gpio_get_community(), gpio_group_index_scaled(), gpio_pad_config_lock_using_sbi(), NULL, offset, p2sb_hide(), p2sb_unhide(), gpio_lock_config::pad, pad_community::pad_cfg_lock_offset, pad_community::port, printk, relative_pad_in_comm(), and x.

Referenced by gpio_lock_pad(), and soc_lock_gpios().

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gpio_pm_configure()

void gpio_pm_configure	(	const uint8_t *	misccfg_pm_values,
		size_t	num
	)

Definition at line 844 of file gpio.c.

References die(), GPIO_MISCCFG, MISCCFG_GPIO_PM_CONFIG_BITS, pcr_rmw8(), pad_community::port, and soc_gpio_get_community().

Referenced by soc_fill_gpio_pm_configuration(), and soc_gpio_pm_configuration().

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gpio_route_gpe()

void gpio_route_gpe	(	uint8_t	gpe0b,
		uint8_t	gpe0c,
		uint8_t	gpe0d
	)

Definition at line 760 of file gpio.c.

References BIOS_DEBUG, CONFIG, GPIO_MISCCFG, gpio_route_pmc_gpio_gpe(), MISCCFG_GPE0_DW0_MASK, MISCCFG_GPE0_DW0_SHIFT, MISCCFG_GPE0_DW1_MASK, MISCCFG_GPE0_DW1_SHIFT, MISCCFG_GPE0_DW2_MASK, MISCCFG_GPE0_DW2_SHIFT, pcr_rmw32(), pad_community::port, printk, and soc_gpio_get_community().

Referenced by pmc_gpe_init().

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gpio_routes_ioapic_irq()

bool gpio_routes_ioapic_irq

(

unsigned int

irq

)

Definition at line 232 of file gpio.c.

References ARRAY_SIZE, assert, BIT, and gpio_ioapic_irqs_used.

Referenced by find_free_pin().

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soc_gpio_get_community()

const struct pad_community* soc_gpio_get_community

(

size_t *

num_communities

)

Definition at line 241 of file gpio.c.

References adl_communities, apl_gpio_communities, ARRAY_SIZE, cnl_communities, dnv_gpio_communities, ehl_communities, glk_gpio_communities, icl_communities, jsl_communities, lewisburg_gpio_communities, skl_gpio_communities, and tgl_communities.

Referenced by allocate_snapshot_space(), gpi_clear_get_smi_status(), gpi_clear_int_cfg(), gpio_get_community(), gpio_pm_configure(), gpio_route_gpe(), gpio_snapshot(), gpio_verify_snapshot(), and print_gpi_status().

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soc_gpio_lock_config()

const struct gpio_lock_config* soc_gpio_lock_config

(

size_t *

num

)

Definition at line 314 of file smihandler.c.

References NULL.

Referenced by soc_lock_gpios().

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soc_gpio_pad_config_fixup()

uint32_t soc_gpio_pad_config_fixup	(	const struct pad_config *	cfg,
		int	dw_reg,
		uint32_t	reg_val
	)

Definition at line 814 of file gpio.c.

References CONFIG, GPP_F11, GPP_F4, and pad_config::pad.

Referenced by gpio_configure_pad().

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soc_pmc_gpio_routes()

const struct pmc_to_gpio_route* soc_pmc_gpio_routes

(

size_t *

num

)

Definition at line 247 of file gpio.c.

References ARRAY_SIZE, GPD, GPIO_GPE_AUDIO_31_0, GPIO_GPE_N_31_0, GPIO_GPE_N_63_32, GPIO_GPE_N_95_64, GPIO_GPE_NW_31_0, GPIO_GPE_NW_63_32, GPIO_GPE_NW_95_64, GPIO_GPE_SCC_31_0, GPIO_GPE_SCC_63_32, GPIO_GPE_SW_31_0, GPIO_GPE_SW_63_32, GPIO_GPE_W_31_0, GPP_A, GPP_B, GPP_C, GPP_D, GPP_E, GPP_F, GPP_G, GPP_GPD, GPP_H, GPP_I, GPP_J, GPP_K, GPP_R, GPP_S, GPP_T, GPP_U, GPP_V, PMC_GPD, PMC_GPE_N_31_0, PMC_GPE_N_63_32, PMC_GPE_NW_31_0, PMC_GPE_NW_63_32, PMC_GPE_NW_95_64, PMC_GPE_SW_31_0, PMC_GPE_SW_63_32, PMC_GPE_W_31_0, PMC_GPP_A, PMC_GPP_B, PMC_GPP_C, PMC_GPP_D, PMC_GPP_E, PMC_GPP_F, PMC_GPP_G, PMC_GPP_H, PMC_GPP_R, PMC_GPP_S, PMC_GPP_T, PMC_GPP_U, PMC_GPP_V, PMC_VGPIO, and VGPIO.

Referenced by gpio_route_pmc_gpio_gpe().

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