#include <acpi/acpi_pm.h>
#include <device/mmio.h>
#include <device/device.h>
#include <console/console.h>
#include <elog.h>
#include <gpio.h>
#include <amdblocks/acpi.h>
#include <amdblocks/acpimmio.h>
#include <amdblocks/gpio.h>
#include <amdblocks/smi.h>
#include <soc/gpio.h>
#include <soc/smi.h>
#include <assert.h>
#include <string.h>
#include <types.h>

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Functions
static void *	gpio_ctrl_ptr (gpio_t gpio_num)

static uint32_t	gpio_read32 (gpio_t gpio_num)

static void	gpio_write32 (gpio_t gpio_num, uint32_t value)

static void *	gpio_mux_ptr (gpio_t gpio_num)

static uint8_t	get_gpio_mux (gpio_t gpio_num)

static void	set_gpio_mux (gpio_t gpio_num, uint8_t function)

static int	get_gpio_gevent (gpio_t gpio, const struct soc_amd_event *table, size_t items)

static void	program_smi (uint32_t flags, unsigned int gevent_num)

static void	program_sci (uint32_t flags, unsigned int gevent_num)

static void	gpio_update32 (gpio_t gpio_num, uint32_t mask, uint32_t or)

static void	gpio_setbits32 (gpio_t gpio_num, uint32_t mask, uint32_t ctrl)

static void	gpio_and32 (gpio_t gpio_num, uint32_t mask)

static void	gpio_or32 (gpio_t gpio_num, uint32_t or)

static void	master_switch_clr (uint32_t mask)

static void	master_switch_set (uint32_t or)

int	gpio_get (gpio_t gpio_num)

void	gpio_set (gpio_t gpio_num, int value)

void	gpio_input_pulldown (gpio_t gpio_num)

void	gpio_input_pullup (gpio_t gpio_num)

void	gpio_input (gpio_t gpio_num)

void	gpio_output (gpio_t gpio_num, int value)

const char *	gpio_acpi_path (gpio_t gpio)

uint16_t	gpio_acpi_pin (gpio_t gpio)

void	gpio_save_pin_registers (gpio_t gpio, struct soc_amd_gpio_register_save *save)

void	gpio_restore_pin_registers (gpio_t gpio, struct soc_amd_gpio_register_save *save)

static void	set_single_gpio (const struct soc_amd_gpio *g)

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

void	gpio_configure_pads (const struct soc_amd_gpio *gpio_list_ptr, size_t size)
	program a particular set of GPIO More...

int	gpio_interrupt_status (gpio_t gpio)

static void	check_and_add_wake_gpio (gpio_t begin, gpio_t end, struct gpio_wake_state *state)

static void	check_gpios (uint32_t wake_stat, unsigned int bit_limit, gpio_t gpio_base, struct gpio_wake_state *state)

void	gpio_fill_wake_state (struct gpio_wake_state *state)

void	gpio_add_events (void)

Function Documentation

◆ check_and_add_wake_gpio()

static void check_and_add_wake_gpio	(	gpio_t	begin,
		gpio_t	end,
		struct gpio_wake_state *	state
	)

static

Definition at line 326 of file gpio.c.

References ARRAY_SIZE, BIOS_INFO, gpio_read32(), GPIO_WAKE_STATUS, and printk.

Referenced by check_gpios().

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◆ check_gpios()

static void check_gpios	(	uint32_t	wake_stat,
		unsigned int	bit_limit,
		gpio_t	gpio_base,
		struct gpio_wake_state *	state
	)

static

Definition at line 342 of file gpio.c.

References BIT, and check_and_add_wake_gpio().

Referenced by gpio_fill_wake_state().

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◆ get_gpio_gevent()

static int get_gpio_gevent	(	gpio_t	gpio,
		const struct soc_amd_event *	table,
		size_t	items
	)

static

Definition at line 71 of file gpio.c.

Referenced by set_single_gpio().

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◆ get_gpio_mux()

static uint8_t get_gpio_mux ( gpio_t gpio_num )

static

Definition at line 60 of file gpio.c.

References gpio_mux_ptr(), and read8().

Referenced by gpio_save_pin_registers(), and set_gpio_mux().

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◆ gpio_acpi_path()

const char* gpio_acpi_path ( gpio_t gpio )

Definition at line 201 of file gpio.c.

◆ gpio_acpi_pin()

uint16_t gpio_acpi_pin ( gpio_t gpio )

Definition at line 206 of file gpio.c.

◆ gpio_add_events()

void gpio_add_events ( void )

Definition at line 382 of file gpio.c.

References acpi_pm_state_for_elog(), ARRAY_SIZE, elog_add_event_wake(), ELOG_WAKE_SOURCE_GPIO, chipset_power_state::gpio_state, and MIN.

Referenced by fch_init().

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◆ gpio_and32()

static void gpio_and32	(	gpio_t	gpio_num,
		uint32_t	mask
	)

static

Definition at line 144 of file gpio.c.

References gpio_update32(), and mask.

Referenced by gpio_input(), and master_switch_clr().

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◆ gpio_configure_pads()

void gpio_configure_pads	(	const struct soc_amd_gpio *	gpio_list_ptr,
		size_t	size
	)

program a particular set of GPIO

Parameters

gpio_list_ptr	= pointer to array of gpio configurations
size	= number of entries in array

Returns: none

Definition at line 307 of file gpio.c.

References gpio_configure_pads_with_override(), and NULL.

Referenced by bootblock_mainboard_early_init(), bootblock_mainboard_init(), carrier_gpio_configure(), configure_early_gpio_pads(), configure_gpio_pads(), disable_unused_gpios(), disable_wifi_wake(), early_config_gpio(), early_lpc_init(), enable_i2s(), fw_config_handle(), init_mainboard(), mainboard_chip_init(), mainboard_config_gpios(), mainboard_config_stage_gpios(), mainboard_configure_early_gpios(), mainboard_configure_gpios(), mainboard_init(), mainboard_memory_init_params(), mainboard_program_early_gpios(), mainboard_program_emmc_gpios(), mainboard_program_gpios(), mainboard_romstage_entry(), mainboard_silicon_init_params(), mainboard_smi_sleep(), mb_pre_fspm(), mb_set_up_early_espi(), program_early_gpio_pads(), program_gpio_pads(), sb_reset_i2c_peripherals(), set_uart_config(), setup_gpio(), tpm_enable(), variant_configure_early_gpio_pads(), variant_configure_early_gpios(), variant_configure_gpios(), variant_early_gpio_configure(), variant_pcie_gpio_configure(), verstage_mainboard_espi_init(), verstage_mainboard_tpm_init(), wifi_power_reset_configure_active_high_power(), wifi_power_reset_configure_active_low_power(), and wifi_power_reset_configure_pre_v3().

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◆ gpio_configure_pads_with_override()

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

Definition at line 262 of file gpio.c.

References c, soc_amd_gpio::gpio, GPIO_INTERRUPT_EN, GPIO_MASK_STS_EN, master_switch_clr(), master_switch_set(), and set_single_gpio().

Referenced by bootblock_mainboard_early_init(), bootblock_mainboard_init(), gpio_configure_pads(), mainboard_chip_init(), mainboard_configure_gpios(), mainboard_init(), mb_pre_fspm(), and verstage_mainboard_early_init().

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◆ gpio_ctrl_ptr()

static void* gpio_ctrl_ptr ( gpio_t gpio_num )

inlinestatic

Definition at line 26 of file gpio.c.

References acpimmio_gpio0, acpimmio_remote_gpio, AMD_GPIO_FIRST_REMOTE_GPIO_NUMBER, CONFIG, ENV_SEPARATE_VERSTAGE, and SOC_GPIO_TOTAL_PINS.

Referenced by gpio_read32(), and gpio_write32().

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◆ gpio_fill_wake_state()

void gpio_fill_wake_state ( struct gpio_wake_state * state )

Definition at line 362 of file gpio.c.

References BIOS_INFO, check_gpios(), GPIO_MASTER_SWITCH, gpio_read32(), GPIO_WAKE_STAT_0, GPIO_WAKE_STAT_1, memset(), and printk.

Referenced by fill_chipset_state().

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◆ gpio_get()

int gpio_get ( gpio_t gpio_num )

Definition at line 166 of file gpio.c.

Referenced by _gpio_base2_value(), _gpio_base3_value(), has_360_sensor_board(), and variant_mainboard_post_init_params().

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◆ gpio_input()

void gpio_input ( gpio_t gpio_num )

Definition at line 189 of file gpio.c.

Referenced by _gpio_base3_value(), and gpio_base2_value().

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◆ gpio_input_pulldown()

void gpio_input_pulldown ( gpio_t gpio_num )

Definition at line 179 of file gpio.c.

Referenced by _gpio_base3_value(), and gpio_pulldown_base2_value().

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◆ gpio_input_pullup()

void gpio_input_pullup ( gpio_t gpio_num )

Definition at line 184 of file gpio.c.

Referenced by _gpio_base3_value(), gpio_eint_configure(), and gpio_pullup_base2_value().

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◆ gpio_interrupt_status()

int gpio_interrupt_status ( gpio_t gpio )

Definition at line 312 of file gpio.c.

References GPIO_INT_STATUS, gpio_read32(), GPIO_WAKE_STATUS, and gpio_write32().

Referenced by tis_plat_irq_status().

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◆ gpio_mux_ptr()

static void* gpio_mux_ptr ( gpio_t gpio_num )

inlinestatic

Definition at line 48 of file gpio.c.

References acpimmio_iomux, acpimmio_remote_gpio, AMD_GPIO_FIRST_REMOTE_GPIO_NUMBER, AMD_GPIO_REMOTE_GPIO_MUX_OFFSET, CONFIG, ENV_SEPARATE_VERSTAGE, and SOC_GPIO_TOTAL_PINS.

Referenced by get_gpio_mux(), and set_gpio_mux().

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◆ gpio_or32()

static void gpio_or32	(	gpio_t	gpio_num,
		uint32_t	or
	)

static

Definition at line 149 of file gpio.c.

References gpio_update32().

Referenced by gpio_output(), master_switch_set(), and set_single_gpio().

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◆ gpio_output()

void gpio_output	(	gpio_t	gpio_num,
		int	value
	)

Definition at line 194 of file gpio.c.

◆ gpio_read32()

static uint32_t gpio_read32 ( gpio_t gpio_num )

inlinestatic

Definition at line 38 of file gpio.c.

References gpio_ctrl_ptr(), and read32().

Referenced by check_and_add_wake_gpio(), gpio_fill_wake_state(), gpio_get(), gpio_interrupt_status(), gpio_restore_pin_registers(), gpio_save_pin_registers(), and gpio_update32().

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◆ gpio_restore_pin_registers()

void gpio_restore_pin_registers	(	gpio_t	gpio,
		struct soc_amd_gpio_register_save *	save
	)

Definition at line 217 of file gpio.c.

References soc_amd_gpio_register_save::control_value, gpio_read32(), gpio_write32(), soc_amd_gpio_register_save::mux_value, and set_gpio_mux().

Referenced by sb_reset_i2c_peripherals().

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◆ gpio_save_pin_registers()

void gpio_save_pin_registers	(	gpio_t	gpio,
		struct soc_amd_gpio_register_save *	save
	)

Definition at line 211 of file gpio.c.

References soc_amd_gpio_register_save::control_value, get_gpio_mux(), gpio_read32(), and soc_amd_gpio_register_save::mux_value.

Referenced by sb_reset_i2c_peripherals().

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◆ gpio_set()

void gpio_set	(	gpio_t	gpio_num,
		int	value
	)

Definition at line 174 of file gpio.c.

Referenced by __gpio_output(), and gpio_output().

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◆ gpio_setbits32()

static void gpio_setbits32	(	gpio_t	gpio_num,
		uint32_t	mask,
		uint32_t	ctrl
	)

static

Definition at line 139 of file gpio.c.

References gpio_update32(), and mask.

Referenced by gpio_input_pulldown(), gpio_input_pullup(), gpio_set(), and set_single_gpio().

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◆ gpio_update32()

static void gpio_update32	(	gpio_t	gpio_num,
		uint32_t	mask,
		uint32_t	or
	)

static

Definition at line 128 of file gpio.c.

References gpio_read32(), gpio_write32(), and mask.

Referenced by gpio_and32(), gpio_or32(), and gpio_setbits32().

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◆ gpio_write32()

static void gpio_write32	(	gpio_t	gpio_num,
		uint32_t	value
	)

inlinestatic

Definition at line 43 of file gpio.c.

References gpio_ctrl_ptr(), value, and write32().

Referenced by gpio_interrupt_status(), gpio_restore_pin_registers(), and gpio_update32().

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◆ master_switch_clr()

static void master_switch_clr ( uint32_t mask )

static

Definition at line 154 of file gpio.c.

References gpio_and32(), GPIO_MASTER_SWITCH, and mask.

Referenced by gpio_configure_pads_with_override().

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◆ master_switch_set()

static void master_switch_set ( uint32_t or )

static

Definition at line 160 of file gpio.c.

References GPIO_MASTER_SWITCH, and gpio_or32().

Referenced by gpio_configure_pads_with_override().

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◆ program_sci()

static void program_sci	(	uint32_t	flags,
		unsigned int	gevent_num
	)

static

Definition at line 108 of file gpio.c.

References configure_scimap(), sci_source::direction, sci_source::gpe, is_gpio_event_active_high(), is_gpio_event_level_triggered(), sci_source::level, sci_source::scimap, SMI_SCI_EDG, SMI_SCI_LVL, SMI_SCI_LVL_HIGH, and SMI_SCI_LVL_LOW.

Referenced by set_single_gpio().

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◆ program_smi()

static void program_smi	(	uint32_t	flags,
		unsigned int	gevent_num
	)

static

Definition at line 83 of file gpio.c.

References BIOS_ERR, BUG, configure_gevent_smi(), is_gpio_event_active_high(), is_gpio_event_level_triggered(), printk, SMI_MODE_SMI, SMI_SCI_LVL_HIGH, and SMI_SCI_LVL_LOW.

Referenced by set_single_gpio().

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◆ set_gpio_mux()

static void set_gpio_mux	(	gpio_t	gpio_num,
		uint8_t	function
	)

static

Definition at line 65 of file gpio.c.

References AMD_GPIO_MUX_MASK, get_gpio_mux(), gpio_mux_ptr(), and write8().

Referenced by gpio_restore_pin_registers(), and set_single_gpio().

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◆ set_single_gpio()

static void set_single_gpio ( const struct soc_amd_gpio * g )

static

Definition at line 224 of file gpio.c.

References BIOS_WARNING, CONFIG, soc_amd_gpio::control, ENV_SEPARATE_VERSTAGE, soc_amd_gpio::flags, soc_amd_gpio::function, get_gpio_gevent(), soc_amd_gpio::gpio, GPIO_FLAG_SCI, GPIO_FLAG_SMI, GPIO_INT_STATUS, gpio_or32(), gpio_setbits32(), GPIO_WAKE_STATUS, NULL, PAD_CFG_MASK, printk, program_sci(), program_smi(), set_gpio_mux(), and soc_get_gpio_event_table().

Referenced by gpio_configure_pads_with_override().

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Functions

Function Documentation

◆ check_and_add_wake_gpio()

◆ check_gpios()

◆ get_gpio_gevent()

◆ get_gpio_mux()

◆ gpio_acpi_path()

◆ gpio_acpi_pin()

◆ gpio_add_events()

◆ gpio_and32()

◆ gpio_configure_pads()

◆ gpio_configure_pads_with_override()

◆ gpio_ctrl_ptr()

◆ gpio_fill_wake_state()

◆ gpio_get()

◆ gpio_input()

◆ gpio_input_pulldown()

◆ gpio_input_pullup()

◆ gpio_interrupt_status()

◆ gpio_mux_ptr()

◆ gpio_or32()

◆ gpio_output()

◆ gpio_read32()

◆ gpio_restore_pin_registers()

◆ gpio_save_pin_registers()

◆ gpio_set()

◆ gpio_setbits32()

◆ gpio_update32()

◆ gpio_write32()

◆ master_switch_clr()

◆ master_switch_set()

◆ program_sci()

◆ program_smi()

◆ set_gpio_mux()

◆ set_single_gpio()