dw_i2c.h File Reference

#include <device/device.h>
#include <device/i2c.h>
#include <types.h>

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Data Structures
struct	dw_i2c_speed_config
struct	dw_i2c_bus_config

Macros
#define	DW_I2C_DEBUG   BIOS_NEVER
#define	DW_I2C_SPEED_CONFIG_COUNT   4

Functions
uintptr_t	dw_i2c_get_soc_early_base (unsigned int bus)
int	dw_i2c_soc_devfn_to_bus (unsigned int devfn)
int	dw_i2c_soc_bus_to_devfn (unsigned int bus)
const struct dw_i2c_bus_config *	dw_i2c_get_soc_cfg (unsigned int bus)
uintptr_t	dw_i2c_base_address (unsigned int bus)
enum cb_err	dw_i2c_init (unsigned int bus, const struct dw_i2c_bus_config *bcfg)
enum cb_err	dw_i2c_gen_speed_config (uintptr_t dw_i2c_addr, enum i2c_speed speed, const struct dw_i2c_bus_config *bcfg, struct dw_i2c_speed_config *config)
int	dw_i2c_soc_dev_to_bus (const struct device *dev)
void	dw_i2c_dev_init (struct device *dev)
void	dw_i2c_acpi_fill_ssdt (const struct device *dev)

Variables
const struct i2c_bus_operations	dw_i2c_bus_ops

Macro Definition Documentation

DW_I2C_DEBUG

#define DW_I2C_DEBUG   BIOS_NEVER

Definition at line 14 of file dw_i2c.h.

DW_I2C_SPEED_CONFIG_COUNT

#define DW_I2C_SPEED_CONFIG_COUNT   4

Definition at line 47 of file dw_i2c.h.

Function Documentation

dw_i2c_acpi_fill_ssdt()

void dw_i2c_acpi_fill_ssdt

(

const struct device *

dev

)

Definition at line 802 of file dw_i2c.c.

References acpi_device_path(), acpigen_write_scope(), acpigen_write_scope_end(), CB_SUCCESS, dw_i2c_acpi_write_speed_config(), dw_i2c_base_address(), dw_i2c_gen_speed_config(), dw_i2c_get_soc_cfg(), dw_i2c_soc_dev_to_bus(), DW_I2C_SPEED_CONFIG_COUNT, I2C_SPEED_FAST, dw_i2c_bus_config::speed, dw_i2c_speed_config::speed, and dw_i2c_bus_config::speed_config.

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dw_i2c_base_address()

uintptr_t dw_i2c_base_address

(

unsigned int

bus

)

Definition at line 19 of file i2c.c.

References ALIGN_DOWN, soc_i2c_ctrlr_info::bar, base, BIOS_ERR, dw_i2c_soc_bus_to_devfn(), lpss_i2c_early_init_bus(), NULL, PCI_BASE_ADDRESS_0, PCI_DEV, PCI_FUNC, pci_read_config32(), PCI_SLOT, printk, and soc_get_i2c_ctrlr_info().

Referenced by dw_i2c_acpi_fill_ssdt().

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dw_i2c_dev_init()

void dw_i2c_dev_init

(

struct device *

dev

)

Definition at line 782 of file dw_i2c.c.

References config, dw_i2c_get_soc_cfg(), dw_i2c_init(), and dw_i2c_soc_dev_to_bus().

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dw_i2c_gen_speed_config()

enum cb_err dw_i2c_gen_speed_config	(	uintptr_t	dw_i2c_addr,
		enum i2c_speed	speed,
		const struct dw_i2c_bus_config *	bcfg,
		struct dw_i2c_speed_config *	config
	)

Definition at line 484 of file dw_i2c.c.

Referenced by dw_i2c_acpi_fill_ssdt().

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dw_i2c_get_soc_cfg()

const struct dw_i2c_bus_config* dw_i2c_get_soc_cfg

(

unsigned int

bus

)

Definition at line 33 of file i2c.c.

References BIOS_ERR, chip_get_common_soc_structure(), soc_intel_common_config::i2c, NULL, printk, and soc_get_i2c_bus_config().

Referenced by dw_i2c_acpi_fill_ssdt(), dw_i2c_dev_init(), and lpss_i2c_early_init_bus().

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dw_i2c_get_soc_early_base()

uintptr_t dw_i2c_get_soc_early_base

(

unsigned int

bus

)

Definition at line 32 of file i2c.c.

References EARLY_I2C_BASE.

Referenced by lpss_i2c_early_init_bus().

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dw_i2c_init()

enum cb_err dw_i2c_init	(	unsigned int	bus,
		const struct dw_i2c_bus_config *	bcfg
	)

Definition at line 484 of file dw_i2c.c.

Referenced by dw_i2c_dev_init(), dw_i2c_soc_init(), and lpss_i2c_early_init_bus().

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dw_i2c_soc_bus_to_devfn()

int dw_i2c_soc_bus_to_devfn

(

unsigned int

bus

)

Definition at line 36 of file i2c.c.

References PCH_DEV_SLOT_SIO1, PCH_DEV_SLOT_SIO2, PCH_DEVFN_I2C0, PCH_DEVFN_I2C1, PCH_DEVFN_I2C2, PCH_DEVFN_I2C3, PCH_DEVFN_I2C4, PCH_DEVFN_I2C5, PCH_DEVFN_I2C6, PCH_DEVFN_I2C7, and PCI_DEVFN.

Referenced by dw_i2c_base_address(), and lpss_i2c_early_init_bus().

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dw_i2c_soc_dev_to_bus()

int dw_i2c_soc_dev_to_bus

(

const struct device *

dev

)

Definition at line 63 of file i2c.c.

References mmio_path::addr, soc_i2c_ctrlr_info::bar, BIOS_ERR, pci_path::devfn, die(), dw_i2c_soc_devfn_to_bus(), device_path::mmio, device::path, device_path::pci, printk, and soc_get_i2c_ctrlr_info().

Referenced by dw_i2c_acpi_fill_ssdt(), and dw_i2c_dev_init().

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dw_i2c_soc_devfn_to_bus()

int dw_i2c_soc_devfn_to_bus

(

unsigned int

devfn

)

Definition at line 13 of file i2c.c.

References PCH_DEV_SLOT_SIO1, PCH_DEV_SLOT_SIO2, PCH_DEVFN_I2C0, PCH_DEVFN_I2C1, PCH_DEVFN_I2C2, PCH_DEVFN_I2C3, PCH_DEVFN_I2C4, PCH_DEVFN_I2C5, PCH_DEVFN_I2C6, PCH_DEVFN_I2C7, PCI_FUNC, and PCI_SLOT.

Referenced by dw_i2c_soc_dev_to_bus().

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Variable Documentation

dw_i2c_bus_ops

const struct i2c_bus_operations dw_i2c_bus_ops

extern

Definition at line 845 of file dw_i2c.c.