coreboot
coreboot is an Open Source project aimed at replacing the proprietary BIOS found in most computers.
Macros | Functions
ec.h File Reference
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Macros

#define EC_IO   0x100 /* Mainboard specific. Could be Kconfig option */
 
#define EC_IO_HIGH   EC_IO + 1
 
#define EC_IO_LOW   EC_IO + 2
 
#define EC_IO_DATA   EC_IO + 3
 
#define KBC_TIMEOUT_IN_MS   400
 
#define KBD_DATA   0x60
 
#define KBD_COMMAND   0x64
 
#define KBD_STATUS   0x64
 
#define KBD_IBF   (1 << 1)
 
#define KBD_OBF   (1 << 0)
 
#define EC_KBD_SMI_EVENT   0xCD
 
#define EC_KBD_CMD_UNMUTE   0xE8
 
#define EC_KBD_CMD_MUTE   0xE9
 
#define EC_DATA   0x62
 
#define EC_SC   0x66
 
#define SMI_EVT   (1 << 6)
 
#define SCI_EVT   (1 << 5)
 
#define RD_EC   0x80
 
#define WR_EC   0x81
 
#define QR_EC   0x84
 
#define EC_CMD_EXIT_BOOT_BLOCK   0x85
 
#define EC_CMD_NOTIFY_ACPI_ENTER   0x86
 
#define EC_CMD_NOTIFY_ACPI_EXIT   0x87
 
#define EC_CMD_WARM_RESET   0x8C
 
#define EC_PERIPH_CNTL_3   0x0D
 
#define EC_USB_S3_EN   0x26
 
#define EC_PERIPH_STAT_3   0x35
 
#define EC_THERM_0   0x78
 
#define EC_WAKE_SRC_ENABLE   0xBF
 
#define EC_FW_VER   0xE8
 
#define EC_IF_MIN_VER   0xEB
 
#define EC_STATUS_REG   0xEC
 
#define EC_IF_MAJ_VER   0xEF
 
#define EC_MBAT_STATUS   0x0138
 
#define EC_IN_RO_MODE   0x1
 
#define EC_IN_RECOVERY_MODE   0x3
 
#define EC_LID_WAKE_ENABLE   0x4
 

Functions

u8 ec_kbc_read_ob (void)
 
void ec_kbc_write_cmd (u8 cmd)
 
void ec_kbc_write_ib (u8 data)
 
u8 ec_read_ob (void)
 
void ec_write_cmd (u8 cmd)
 
void ec_write_ib (u8 data)
 
u8 ec_read (u16 addr)
 
void ec_write (u16 addr, u8 data)
 
u8 ec_it8518_get_event (void)
 
void ec_it8518_enable_wake_events (void)
 

Macro Definition Documentation

◆ EC_CMD_EXIT_BOOT_BLOCK

#define EC_CMD_EXIT_BOOT_BLOCK   0x85

Definition at line 44 of file ec.h.

◆ EC_CMD_NOTIFY_ACPI_ENTER

#define EC_CMD_NOTIFY_ACPI_ENTER   0x86

Definition at line 45 of file ec.h.

◆ EC_CMD_NOTIFY_ACPI_EXIT

#define EC_CMD_NOTIFY_ACPI_EXIT   0x87

Definition at line 46 of file ec.h.

◆ EC_CMD_WARM_RESET

#define EC_CMD_WARM_RESET   0x8C

Definition at line 47 of file ec.h.

◆ EC_DATA

#define EC_DATA   0x62

Definition at line 34 of file ec.h.

◆ EC_FW_VER

#define EC_FW_VER   0xE8

Definition at line 55 of file ec.h.

◆ EC_IF_MAJ_VER

#define EC_IF_MAJ_VER   0xEF

Definition at line 58 of file ec.h.

◆ EC_IF_MIN_VER

#define EC_IF_MIN_VER   0xEB

Definition at line 56 of file ec.h.

◆ EC_IN_RECOVERY_MODE

#define EC_IN_RECOVERY_MODE   0x3

Definition at line 65 of file ec.h.

◆ EC_IN_RO_MODE

#define EC_IN_RO_MODE   0x1

Definition at line 64 of file ec.h.

◆ EC_IO

#define EC_IO   0x100 /* Mainboard specific. Could be Kconfig option */

Definition at line 10 of file ec.h.

◆ EC_IO_DATA

#define EC_IO_DATA   EC_IO + 3

Definition at line 13 of file ec.h.

◆ EC_IO_HIGH

#define EC_IO_HIGH   EC_IO + 1

Definition at line 11 of file ec.h.

◆ EC_IO_LOW

#define EC_IO_LOW   EC_IO + 2

Definition at line 12 of file ec.h.

◆ EC_KBD_CMD_MUTE

#define EC_KBD_CMD_MUTE   0xE9

Definition at line 27 of file ec.h.

◆ EC_KBD_CMD_UNMUTE

#define EC_KBD_CMD_UNMUTE   0xE8

Definition at line 26 of file ec.h.

◆ EC_KBD_SMI_EVENT

#define EC_KBD_SMI_EVENT   0xCD

Definition at line 25 of file ec.h.

◆ EC_LID_WAKE_ENABLE

#define EC_LID_WAKE_ENABLE   0x4

Definition at line 68 of file ec.h.

◆ EC_MBAT_STATUS

#define EC_MBAT_STATUS   0x0138

Definition at line 59 of file ec.h.

◆ EC_PERIPH_CNTL_3

#define EC_PERIPH_CNTL_3   0x0D

Definition at line 50 of file ec.h.

◆ EC_PERIPH_STAT_3

#define EC_PERIPH_STAT_3   0x35

Definition at line 52 of file ec.h.

◆ EC_SC

#define EC_SC   0x66

Definition at line 35 of file ec.h.

◆ EC_STATUS_REG

#define EC_STATUS_REG   0xEC

Definition at line 57 of file ec.h.

◆ EC_THERM_0

#define EC_THERM_0   0x78

Definition at line 53 of file ec.h.

◆ EC_USB_S3_EN

#define EC_USB_S3_EN   0x26

Definition at line 51 of file ec.h.

◆ EC_WAKE_SRC_ENABLE

#define EC_WAKE_SRC_ENABLE   0xBF

Definition at line 54 of file ec.h.

◆ KBC_TIMEOUT_IN_MS

#define KBC_TIMEOUT_IN_MS   400

Definition at line 16 of file ec.h.

◆ KBD_COMMAND

#define KBD_COMMAND   0x64

Definition at line 20 of file ec.h.

◆ KBD_DATA

#define KBD_DATA   0x60

Definition at line 19 of file ec.h.

◆ KBD_IBF

#define KBD_IBF   (1 << 1)

Definition at line 22 of file ec.h.

◆ KBD_OBF

#define KBD_OBF   (1 << 0)

Definition at line 23 of file ec.h.

◆ KBD_STATUS

#define KBD_STATUS   0x64

Definition at line 21 of file ec.h.

◆ QR_EC

#define QR_EC   0x84

Definition at line 42 of file ec.h.

◆ RD_EC

#define RD_EC   0x80

Definition at line 40 of file ec.h.

◆ SCI_EVT

#define SCI_EVT   (1 << 5)

Definition at line 37 of file ec.h.

◆ SMI_EVT

#define SMI_EVT   (1 << 6)

Definition at line 36 of file ec.h.

◆ WR_EC

#define WR_EC   0x81

Definition at line 41 of file ec.h.

Function Documentation

◆ ec_it8518_enable_wake_events()

void ec_it8518_enable_wake_events ( void  )

Definition at line 123 of file ec.c.

References EC_LID_WAKE_ENABLE, ec_read(), EC_WAKE_SRC_ENABLE, and ec_write().

Referenced by mainboard_smi_sleep().

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◆ ec_it8518_get_event()

u8 ec_it8518_get_event ( void  )

Definition at line 109 of file ec.c.

References ec_kbc_read_ob(), ec_kbc_write_cmd(), EC_KBD_SMI_EVENT, ec_read_ob(), EC_SC, ec_write_cmd(), inb(), QR_EC, SCI_EVT, and SMI_EVT.

Referenced by mainboard_smi_ec().

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◆ ec_kbc_read_ob()

u8 ec_kbc_read_ob ( void  )

Definition at line 71 of file ec.c.

References ec_output_buffer_full(), inb(), kbc_output_buffer_full(), KBD_DATA, KBD_STATUS, and output_buffer_full().

Referenced by ec_get_smi_event(), ec_it8518_get_event(), mainboard_smi_ec(), parrot_ec_init(), and parrot_rev().

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◆ ec_kbc_write_cmd()

void ec_kbc_write_cmd ( u8  cmd)

Definition at line 77 of file ec.c.

References ec_input_buffer_empty(), input_buffer_empty(), kbc_input_buffer_empty(), KBD_COMMAND, KBD_STATUS, and outb().

Referenced by ec_enter_acpi_mode(), ec_enter_apm_mode(), ec_get_smi_event(), ec_it8518_get_event(), enter_apm_mode(), mainboard_smi_apmc(), mainboard_smi_ec(), mainboard_smi_sleep(), parrot_ec_init(), parrot_rev(), set_keyboard_matrix_us(), and stout_ec_init().

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◆ ec_kbc_write_ib()

void ec_kbc_write_ib ( u8  data)

Definition at line 83 of file ec.c.

References ec_input_buffer_empty(), input_buffer_empty(), kbc_input_buffer_empty(), KBD_DATA, KBD_STATUS, and outb().

Referenced by ec_enter_acpi_mode(), ec_enter_apm_mode(), enter_apm_mode(), mainboard_smi_apmc(), mainboard_smi_sleep(), parrot_ec_init(), parrot_rev(), and set_keyboard_matrix_us().

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◆ ec_read()

u8 ec_read ( u16  addr)

Definition at line 95 of file ec.c.

References addr, ec_read_ob(), ec_write_cmd(), ec_write_ib(), and RD_EC.

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◆ ec_read_ob()

u8 ec_read_ob ( void  )

Definition at line 73 of file ec.c.

References EC_DATA, ec_output_buffer_full(), EC_SC, inb(), and output_buffer_full().

Referenced by ec_it8518_get_event(), ec_mem_read(), and ec_read().

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◆ ec_write()

void ec_write ( u16  addr,
u8  data 
)

Definition at line 102 of file ec.c.

References addr, ec_write_cmd(), ec_write_ib(), and WR_EC.

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◆ ec_write_cmd()

void ec_write_cmd ( u8  cmd)

Definition at line 79 of file ec.c.

References EC_COMMAND, ec_input_buffer_empty(), EC_SC, input_buffer_empty(), and outb().

Referenced by early_ec_init(), ec_it8518_get_event(), ec_mem_read(), ec_mem_write(), ec_read(), ec_write(), mainboard_smi_apmc(), and mainboard_suspend_resume().

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◆ ec_write_ib()

void ec_write_ib ( u8  data)

Definition at line 85 of file ec.c.

References EC_DATA, ec_input_buffer_empty(), EC_SC, input_buffer_empty(), and outb().

Referenced by ec_mem_read(), ec_mem_write(), ec_read(), and ec_write().

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