#include <acpi/acpi.h>
#include <device/mmio.h>
#include <device/pci_ops.h>
#include <console/console.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <device/pci_def.h>
#include <stdlib.h>
#include <string.h>
#include <delay.h>
#include <elog.h>
#include <soc/me.h>
#include <soc/lpc.h>
#include <soc/pch.h>
#include <soc/pci_devs.h>
#include <soc/rcba.h>
#include <soc/intel/broadwell/pch/chip.h>
#include <vendorcode/google/chromeos/chromeos.h>

Include dependency graph for me.c:

Data Structures
struct	mbp_payload

Macros
#define	ASSIGN_FIELD_PTR(field_, val_)

Functions
static void	mei_dump (void ptr, int dword, int offset, const char type)

static void	mei_read_dword_ptr (void *ptr, int offset)

static void	mei_write_dword_ptr (void *ptr, int offset)

static void	pci_read_dword_ptr (struct device dev, void ptr, int offset)

static void	read_host_csr (struct mei_csr *csr)

static void	write_host_csr (struct mei_csr *csr)

static void	read_me_csr (struct mei_csr *csr)

static void	write_cb (u32 dword)

static u32	read_cb (void)

static int	mei_wait_for_me_ready (void)

static void	mei_reset (void)

static int	mei_send_packet (struct mei_header mei, void req_data)

static int	mei_send_data (u8 me_address, u8 host_address, void *req_data, int req_bytes)

static int	mei_send_header (u8 me_address, u8 host_address, void *header, int header_len, int complete)

static int	mei_recv_msg (void header, int header_bytes, void rsp_data, int rsp_bytes)

static int	mei_sendrecv_mkhi (struct mkhi_header mkhi, void req_data, int req_bytes, void *rsp_data, int rsp_bytes)

static int	mei_sendrecv_icc (struct icc_header icc, void req_data, int req_bytes, void *rsp_data, int rsp_bytes)

static void	intel_me_mbp_give_up (struct device *dev)

static void	intel_me_mbp_clear (struct device *dev)

static void	me_print_fw_version (mbp_fw_version_name *vers_name)

static void	print_cap (const char *name, int state)

static int	mkhi_get_fwcaps (mbp_mefwcaps *cap)

static void	me_print_fwcaps (mbp_mefwcaps *cap)

static int	mkhi_end_of_post (void)

static int	mkhi_end_of_post_noack (void)

static int	mkhi_hmrfpo_lock (void)

static int	mkhi_hmrfpo_lock_noack (void)

static void	intel_me_finalize (struct device *dev)

static int	me_icc_set_clock_enables (u32 mask)

static me_bios_path	intel_me_path (struct device *dev)

static int	intel_mei_setup (struct device *dev)

static int	intel_me_extend_valid (struct device *dev)

static void	intel_me_print_mbp (me_bios_payload *mbp_data)

static u32	me_to_host_words_pending (void)

static int	intel_me_read_mbp (me_bios_payload mbp_data, struct device dev)

static void	intel_me_init (struct device *dev)

static void	intel_me_enable (struct device *dev)

Variables
static const char *	me_bios_path_values []

static u8 *	mei_base_address

static struct device_operations	device_ops

static const unsigned short	pci_device_ids []

static const struct pci_driver intel_me	__pci_driver

Macro Definition Documentation

◆ ASSIGN_FIELD_PTR

#define ASSIGN_FIELD_PTR	(	field_,
		val_
	)

Value:

        { \
                mbp_data->field_ = (typeof(mbp_data->field_))(void *)val_; \
                break; \
        }

Function Documentation

◆ intel_me_enable()

static void intel_me_enable ( struct device * dev )

static

Definition at line 1023 of file me.c.

◆ intel_me_extend_valid()

static int intel_me_extend_valid ( struct device * dev )

static

Definition at line 733 of file me.c.

References BIOS_DEBUG, BIOS_ERR, CONFIG, count, me_heres::extend_feature_present, me_heres::extend_reg_algorithm, me_heres::extend_reg_valid, PCI_ME_EXT_SHA1, PCI_ME_EXT_SHA256, PCI_ME_HER, PCI_ME_HERES, pci_read_config32(), pci_read_dword_ptr(), and printk.

Referenced by intel_me_init().

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◆ intel_me_finalize()

static void intel_me_finalize ( struct device * dev )

static

Definition at line 596 of file me.c.

References FD2, mei_base_address, PCH_DISABLE_MEI1, PCI_COMMAND, PCI_COMMAND_IO, PCI_COMMAND_MASTER, PCI_COMMAND_MEMORY, pci_read_config16(), pci_write_config16(), RCBA32, and RCBA32_OR.

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◆ intel_me_init()

static void intel_me_init ( struct device * dev )

static

Definition at line 946 of file me.c.

References BIOS_NOTICE, config, config_of(), me_hfs::fpt_bad, intel_me_extend_valid(), intel_me_path(), intel_me_print_mbp(), intel_me_read_mbp(), intel_mei_setup(), mei_csr::interrupt_generate, me_bios_path_values, ME_HFS_CWS_NORMAL, ME_HFS_MODE_NORMAL, me_icc_set_clock_enables(), ME_NORMAL_BIOS_PATH, memset(), mkhi_end_of_post(), mkhi_end_of_post_noack(), mkhi_hmrfpo_lock(), mkhi_hmrfpo_lock_noack(), me_hfs::operation_mode, PCI_ME_HFS, pci_read_dword_ptr(), printk, read_host_csr(), mei_csr::reset, me_hfs::working_state, and write_host_csr().

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◆ intel_me_mbp_clear()

static void intel_me_mbp_clear ( struct device * dev )

static

Definition at line 436 of file me.c.

References BIOS_INFO, BIOS_WARNING, count, intel_me_mbp_give_up(), me_hfs2::mbp_cleared, ME_DELAY, ME_RETRY, PCI_ME_HFS2, pci_read_dword_ptr(), printk, and udelay().

Referenced by intel_me_read_mbp().

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◆ intel_me_mbp_give_up()

static void intel_me_mbp_give_up ( struct device * dev )

static

Definition at line 420 of file me.c.

References mei_csr::interrupt_generate, PCI_ME_H_GS2, PCI_ME_MBP_GIVE_UP, pci_write_config32(), read_host_csr(), mei_csr::reset, and write_host_csr().

Referenced by intel_me_mbp_clear(), and intel_me_read_mbp().

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◆ intel_me_path()

static me_bios_path intel_me_path ( struct device * dev )

static

Definition at line 638 of file me.c.

References BIOS_CRIT, CONFIG, me_hfs2::current_pmevent, me_hfs2::current_state, elog_event_data_me_extended::current_working_state, elog_add_event_byte(), elog_add_event_raw(), ELOG_TYPE_MANAGEMENT_ENGINE, ELOG_TYPE_MANAGEMENT_ENGINE_EXT, me_hfs::error_code, me_hfs::fpt_bad, intel_me_status(), me_hfs2::mbp_rdy, ME_DISABLE_BIOS_PATH, ME_ERROR_BIOS_PATH, ME_HFS_CWS_NORMAL, ME_HFS_CWS_REC, ME_HFS_MODE_DEBUG, ME_HFS_MODE_DIS, ME_HFS_MODE_NORMAL, ME_HFS_MODE_OVER_JMPR, ME_HFS_MODE_OVER_MEI, ME_NORMAL_BIOS_PATH, ME_RECOVERY_BIOS_PATH, me_hfs::operation_mode, me_hfs::operation_state, PCI_ME_HFS, PCI_ME_HFS2, pci_read_dword_ptr(), printk, me_hfs2::progress_code, and me_hfs::working_state.

Referenced by intel_me_init().

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◆ intel_me_print_mbp()

static void intel_me_print_mbp ( me_bios_payload * mbp_data )

static

Definition at line 778 of file me.c.

References BIOS_DEBUG, CONFIG, me_bios_payload::fw_capabilities, me_bios_payload::fw_version_name, me_print_fw_version(), me_print_fwcaps(), mbp_plat_time::mrst_pltrst_time_ms, me_bios_payload::plat_time, mbp_plat_time::pltrst_cpurst_time_ms, printk, and mbp_plat_time::wake_event_mrst_time_ms.

Referenced by intel_me_init().

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◆ intel_me_read_mbp()

static int intel_me_read_mbp	(	me_bios_payload *	mbp_data,
		struct device *	dev
	)

static

Definition at line 817 of file me.c.

References mbp_item_header::app_id, ASSIGN_FIELD_PTR, BIOS_ERR, BIOS_INFO, mei_csr::buffer_read_ptr, mei_csr::buffer_write_ptr, CONFIG, mbp_payload::data, free(), mbp_payload::header, ICC, intel_me_mbp_clear(), intel_me_mbp_give_up(), mei_csr::interrupt_generate, mbp_item_header::item_id, mbp_item_header::length, malloc(), MBP_IDENT, MBP_MAKE_IDENT, me_hfs2::mbp_rdy, me_to_host_words_pending(), MEI_ME_CB_RW, mei_read_dword_ptr(), PCI_ME_HFS2, pci_read_dword_ptr(), printk, read_host_csr(), mei_csr::reset, and write_host_csr().

Referenced by intel_me_init().

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◆ intel_mei_setup()

static int intel_mei_setup ( struct device * dev )

static

Definition at line 706 of file me.c.

References resource::base, BIOS_DEBUG, mei_csr::interrupt_generate, mei_base_address, PCI_BASE_ADDRESS_0, PCI_COMMAND, PCI_COMMAND_MASTER, PCI_COMMAND_MEMORY, pci_or_config16(), printk, probe_resource(), read_host_csr(), mei_csr::ready, res2mmio(), mei_csr::reset, resource::size, and write_host_csr().

Referenced by intel_me_init().

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◆ me_icc_set_clock_enables()

static int me_icc_set_clock_enables ( u32 mask )

static

Definition at line 615 of file me.c.

References icc_header::api_version, BIOS_ERR, BIOS_INFO, icc_clock_enables_msg::clock_enables, ICC_API_VERSION_LYNXPOINT, ICC_SET_CLOCK_ENABLES, mask, mei_sendrecv_icc(), NULL, and printk.

Referenced by intel_me_init().

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◆ me_print_fw_version()

static void me_print_fw_version ( mbp_fw_version_name * vers_name )

static

Definition at line 457 of file me.c.

References BIOS_DEBUG, BIOS_ERR, mbp_fw_version_name::build_version, mbp_fw_version_name::hotfix_version, mbp_fw_version_name::major_version, mbp_fw_version_name::minor_version, and printk.

Referenced by intel_me_print_mbp().

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◆ me_print_fwcaps()

static void me_print_fwcaps ( mbp_mefwcaps * cap )

static

Definition at line 496 of file me.c.

References BIOS_ERR, mbp_mefwcaps::full_net, mbp_mefwcaps::icc_over_clocking, mbp_mefwcaps::intel_at, mbp_mefwcaps::intel_cls, mbp_mefwcaps::intel_mpc, mbp_mefwcaps::ipv6, mbp_mefwcaps::kvm, mbp_mefwcaps::manageability, mkhi_get_fwcaps(), mbp_mefwcaps::och, mbp_mefwcaps::pavp, print_cap(), printk, mbp_mefwcaps::std_net, mbp_mefwcaps::tls, mbp_mefwcaps::vlan, and mbp_mefwcaps::wlan.

Referenced by intel_me_print_mbp().

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◆ me_to_host_words_pending()

static u32 me_to_host_words_pending ( void )

static

Definition at line 795 of file me.c.

References mei_csr::buffer_depth, mei_csr::buffer_read_ptr, mei_csr::buffer_write_ptr, read_me_csr(), and mei_csr::ready.

Referenced by intel_me_read_mbp().

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◆ mei_dump()

static void mei_dump	(	void *	ptr,
		int	dword,
		int	offset,
		const char *	type
	)

static

Definition at line 45 of file me.c.

References BIOS_SPEW, mei_csr::buffer_depth, mei_csr::buffer_read_ptr, mei_csr::buffer_write_ptr, CONFIG, mei_csr::interrupt_enable, mei_csr::interrupt_generate, mei_csr::interrupt_status, MEI_H_CB_WW, MEI_H_CSR, MEI_ME_CB_RW, MEI_ME_CSR_HA, offset, printk, mei_csr::ready, mei_csr::reset, and type.

Referenced by mei_read_dword_ptr(), mei_write_dword_ptr(), pci_read_dword_ptr(), read_cb(), and write_cb().

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◆ mei_read_dword_ptr()

static void mei_read_dword_ptr	(	void *	ptr,
		int	offset
	)

inlinestatic

Definition at line 82 of file me.c.

References mei_base_address, mei_dump(), memcpy(), offset, and read32().

Referenced by intel_me_read_mbp(), mei_recv_msg(), read_host_csr(), and read_me_csr().

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◆ mei_recv_msg()

static int mei_recv_msg	(	void *	header,
		int	header_bytes,
		void *	rsp_data,
		int	rsp_bytes
	)

static

Definition at line 275 of file me.c.

References BIOS_ERR, mei_csr::buffer_read_ptr, mei_csr::buffer_write_ptr, header, mei_csr::interrupt_generate, mei_csr::interrupt_status, mei_header::is_complete, mei_header::length, ME_DELAY, ME_RETRY, MEI_ME_CB_RW, mei_read_dword_ptr(), mei_wait_for_me_ready(), printk, read_cb(), read_host_csr(), read_me_csr(), udelay(), and write_host_csr().

Referenced by mei_sendrecv_icc(), and mei_sendrecv_mkhi().

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◆ mei_reset()

static void mei_reset ( void )

static

Definition at line 149 of file me.c.

References mei_csr::interrupt_generate, mei_wait_for_me_ready(), read_host_csr(), mei_csr::ready, mei_csr::reset, and write_host_csr().

Referenced by mei_send_packet().

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◆ mei_send_data()

static int mei_send_data	(	u8	me_address,
		u8	host_address,
		void *	req_data,
		int	req_bytes
	)

static

Definition at line 227 of file me.c.

References mei_csr::buffer_depth, mei_csr::buffer_write_ptr, header, mei_header::host_address, mei_send_packet(), and read_host_csr().

Referenced by mei_sendrecv_icc(), and mei_sendrecv_mkhi().

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◆ mei_send_header()

static int mei_send_header	(	u8	me_address,
		u8	host_address,
		void *	header,
		int	header_len,
		int	complete
	)

static

Definition at line 263 of file me.c.

References mei_header::client_address, header, mei_header::host_address, and mei_send_packet().

Referenced by mei_sendrecv_icc(), and mei_sendrecv_mkhi().

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◆ mei_send_packet()

static int mei_send_packet	(	struct mei_header *	mei,
		void *	req_data
	)

static

Definition at line 173 of file me.c.

References BIOS_DEBUG, BIOS_ERR, mei_csr::buffer_depth, mei_csr::buffer_write_ptr, mei_csr::interrupt_generate, mei_header::length, MEI_H_CB_WW, mei_reset(), mei_wait_for_me_ready(), mei_write_dword_ptr(), printk, read_host_csr(), write_cb(), and write_host_csr().

Referenced by mei_send_data(), and mei_send_header().

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◆ mei_sendrecv_icc()

static int mei_sendrecv_icc	(	struct icc_header *	icc,
		void *	req_data,
		int	req_bytes,
		void *	rsp_data,
		int	rsp_bytes
	)

inlinestatic

Definition at line 392 of file me.c.

References MEI_ADDRESS_ICC, MEI_HOST_ADDRESS, mei_recv_msg(), mei_send_data(), and mei_send_header().

Referenced by me_icc_set_clock_enables().

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◆ mei_sendrecv_mkhi()

static int mei_sendrecv_mkhi	(	struct mkhi_header *	mkhi,
		void *	req_data,
		int	req_bytes,
		void *	rsp_data,
		int	rsp_bytes
	)

inlinestatic

Definition at line 354 of file me.c.

References BIOS_ERR, mkhi_header::command, mkhi_header::group_id, mkhi_header::is_response, MEI_ADDRESS_MKHI, MEI_HOST_ADDRESS, mei_recv_msg(), mei_send_data(), mei_send_header(), and printk.

Referenced by mkhi_end_of_post(), mkhi_end_of_post_noack(), mkhi_get_fwcaps(), mkhi_hmrfpo_lock(), and mkhi_hmrfpo_lock_noack().

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◆ mei_wait_for_me_ready()

static int mei_wait_for_me_ready ( void )

static

Definition at line 133 of file me.c.

References BIOS_ERR, ME_DELAY, ME_RETRY, printk, read_me_csr(), mei_csr::ready, and udelay().

Referenced by mei_recv_msg(), mei_reset(), and mei_send_packet().

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◆ mei_write_dword_ptr()

static void mei_write_dword_ptr	(	void *	ptr,
		int	offset
	)

inlinestatic

Definition at line 89 of file me.c.

References mei_base_address, mei_dump(), memcpy(), offset, and write32().

Referenced by mei_send_packet(), and write_host_csr().

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◆ mkhi_end_of_post()

static int mkhi_end_of_post ( void )

static

Definition at line 523 of file me.c.

References BIOS_ERR, BIOS_INFO, mkhi_header::group_id, mei_sendrecv_mkhi(), MKHI_END_OF_POST, MKHI_GROUP_ID_GEN, NULL, and printk.

Referenced by intel_me_init().

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◆ mkhi_end_of_post_noack()

static int mkhi_end_of_post_noack ( void )

static

Definition at line 542 of file me.c.

References BIOS_ERR, BIOS_INFO, mkhi_header::group_id, mei_sendrecv_mkhi(), MKHI_END_OF_POST_NOACK, MKHI_GROUP_ID_GEN, NULL, and printk.

Referenced by intel_me_init().

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◆ mkhi_get_fwcaps()

static int mkhi_get_fwcaps ( mbp_mefwcaps * cap )

static

Definition at line 476 of file me.c.

References BIOS_ERR, me_fwcaps::caps_sku, mkhi_header::group_id, mei_sendrecv_mkhi(), MKHI_FWCAPS_GET_RULE, MKHI_GROUP_ID_FWCAPS, and printk.

Referenced by me_print_fwcaps().

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◆ mkhi_hmrfpo_lock()

static int mkhi_hmrfpo_lock ( void )

static

Definition at line 560 of file me.c.

References BIOS_ERR, BIOS_INFO, mkhi_header::group_id, mei_sendrecv_mkhi(), MKHI_GROUP_ID_HMRFPO, MKHI_HMRFPO_LOCK, NULL, and printk.

Referenced by intel_me_init().

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◆ mkhi_hmrfpo_lock_noack()

static int mkhi_hmrfpo_lock_noack ( void )

static

Definition at line 579 of file me.c.

References BIOS_ERR, BIOS_INFO, mkhi_header::group_id, mei_sendrecv_mkhi(), MKHI_GROUP_ID_HMRFPO, MKHI_HMRFPO_LOCK_NOACK, NULL, and printk.

Referenced by intel_me_init().

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◆ pci_read_dword_ptr()

static void pci_read_dword_ptr	(	struct device *	dev,
		void *	ptr,
		int	offset
	)

inlinestatic

Definition at line 97 of file me.c.

References mei_dump(), memcpy(), offset, and pci_read_config32().

Referenced by intel_me_extend_valid(), intel_me_init(), intel_me_mbp_clear(), intel_me_path(), and intel_me_read_mbp().

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◆ print_cap()

static void print_cap	(	const char *	name,
		int	state
	)

inlinestatic

Definition at line 469 of file me.c.

References BIOS_DEBUG, name, and printk.

Referenced by me_print_fwcaps().

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◆ read_cb()

static u32 read_cb ( void )

inlinestatic

Definition at line 125 of file me.c.

References mei_base_address, mei_dump(), MEI_ME_CB_RW, NULL, and read32().

Referenced by intel_me_read_mbp(), and mei_recv_msg().

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◆ read_host_csr()

static void read_host_csr ( struct mei_csr * csr )

inlinestatic

Definition at line 104 of file me.c.

References MEI_H_CSR, and mei_read_dword_ptr().

Referenced by intel_me_init(), intel_me_mbp_give_up(), intel_me_read_mbp(), intel_mei_setup(), mei_recv_msg(), mei_reset(), mei_send_data(), and mei_send_packet().

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◆ read_me_csr()

static void read_me_csr ( struct mei_csr * csr )

inlinestatic

Definition at line 114 of file me.c.

References MEI_ME_CSR_HA, and mei_read_dword_ptr().

Referenced by me_to_host_words_pending(), mei_recv_msg(), and mei_wait_for_me_ready().

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◆ write_cb()

static void write_cb ( u32 dword )

inlinestatic

Definition at line 119 of file me.c.

References mei_base_address, mei_dump(), MEI_H_CB_WW, NULL, and write32().

Referenced by mei_send_packet().

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◆ write_host_csr()

static void write_host_csr ( struct mei_csr * csr )

inlinestatic

Definition at line 109 of file me.c.

References MEI_H_CSR, and mei_write_dword_ptr().

Referenced by intel_me_init(), intel_me_mbp_give_up(), intel_me_read_mbp(), intel_mei_setup(), mei_recv_msg(), mei_reset(), and mei_send_packet().

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Variable Documentation

◆ __pci_driver

const struct pci_driver intel_me __pci_driver

static

Initial value:

= {
        .ops     = &device_ops,
        .vendor  = PCI_VID_INTEL,
        .devices = pci_device_ids,
}

Definition at line 1042 of file me.c.

◆ device_ops

struct device_operations device_ops

static

Initial value:

= {
        .read_resources         = &pci_dev_read_resources,
        .set_resources          = &pci_dev_set_resources,
        .enable_resources       = &pci_dev_enable_resources,
        .enable                 = &intel_me_enable,
        .init                   = &intel_me_init,
        .final                  = &intel_me_finalize,
        .ops_pci                = &pci_dev_ops_pci,
}

Definition at line 1023 of file me.c.

◆ me_bios_path_values

const char* me_bios_path_values[]

static

Initial value:

= {
        [ME_NORMAL_BIOS_PATH]           = "Normal",
        [ME_S3WAKE_BIOS_PATH]           = "S3 Wake",
        [ME_ERROR_BIOS_PATH]            = "Error",
        [ME_RECOVERY_BIOS_PATH]         = "Recovery",
        [ME_DISABLE_BIOS_PATH]          = "Disable",
        [ME_FIRMWARE_UPDATE_BIOS_PATH]  = "Firmware Update",
}

Definition at line 33 of file me.c.

Referenced by intel_me_init().

◆ mei_base_address

u8* mei_base_address

static

Definition at line 43 of file me.c.

Referenced by intel_me_finalize(), intel_mei_setup(), mei_read_dword_ptr(), mei_write_dword_ptr(), read_cb(), and write_cb().

◆ pci_device_ids

const unsigned short pci_device_ids[]

static

Initial value:

= {
        0x9c3a, 
        0x9cba, 
        0
}

Definition at line 1042 of file me.c.

Data Structures

Macros

Functions

Variables

Macro Definition Documentation

◆ ASSIGN_FIELD_PTR

Function Documentation

◆ intel_me_enable()

◆ intel_me_extend_valid()

◆ intel_me_finalize()

◆ intel_me_init()

◆ intel_me_mbp_clear()

◆ intel_me_mbp_give_up()

◆ intel_me_path()

◆ intel_me_print_mbp()

◆ intel_me_read_mbp()

◆ intel_mei_setup()

◆ me_icc_set_clock_enables()

◆ me_print_fw_version()

◆ me_print_fwcaps()

◆ me_to_host_words_pending()

◆ mei_dump()

◆ mei_read_dword_ptr()

◆ mei_recv_msg()

◆ mei_reset()

◆ mei_send_data()

◆ mei_send_header()

◆ mei_send_packet()

◆ mei_sendrecv_icc()

◆ mei_sendrecv_mkhi()

◆ mei_wait_for_me_ready()

◆ mei_write_dword_ptr()

◆ mkhi_end_of_post()

◆ mkhi_end_of_post_noack()

◆ mkhi_get_fwcaps()

◆ mkhi_hmrfpo_lock()

◆ mkhi_hmrfpo_lock_noack()

◆ pci_read_dword_ptr()

◆ print_cap()

◆ read_cb()

◆ read_host_csr()

◆ read_me_csr()

◆ write_cb()

◆ write_host_csr()

Variable Documentation

◆ __pci_driver

◆ device_ops

◆ me_bios_path_values

◆ mei_base_address

◆ pci_device_ids