me.c File Reference

#include <acpi/acpi.h>
#include <console/console.h>
#include <device/device.h>
#include <device/mmio.h>
#include <device/pci.h>
#include <device/pci_def.h>
#include <device/pci_ids.h>
#include <device/pci_ops.h>
#include <string.h>
#include <delay.h>
#include <elog.h>
#include "me.h"
#include "pch.h"

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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_msg (struct mei_header *mei, struct mkhi_header *mkhi, void *req_data)
static int	mei_recv_msg (struct mei_header *mei, struct mkhi_header *mkhi, void *rsp_data, int rsp_bytes)
static int	mei_sendrecv (struct mei_header *mei, struct mkhi_header *mkhi, void *req_data, void *rsp_data, int rsp_bytes)
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_hide (struct device *dev)
static void	intel_me_init (struct device *dev)

Variables
static const char *me_bios_path_values[]	__unused
static u32 *	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

Function Documentation

intel_me_extend_valid()

static int intel_me_extend_valid ( struct device *  dev )

static

Definition at line 421 of file me.c.

References BIOS_DEBUG, BIOS_ERR, 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.

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intel_me_hide()

static void intel_me_hide ( struct device *  dev )

static

Definition at line 463 of file me.c.

References device::enabled, and pch_enable().

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intel_me_init()

static void intel_me_init ( struct device *  dev )

static

Definition at line 470 of file me.c.

intel_me_path()

static me_bios_path intel_me_path ( struct device *  dev )

static

Definition at line 326 of file me.c.

References acpi_is_wakeup_s3(), CONFIG, me_gmes::current_pmevent, me_gmes::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_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_S3WAKE_BIOS_PATH, me_hfs::operation_mode, me_hfs::operation_state, PCI_ME_GMES, PCI_ME_HFS, pci_read_dword_ptr(), me_gmes::progress_code, and me_hfs::working_state.

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intel_mei_setup()

static int intel_mei_setup ( struct device *  dev )

static

Definition at line 391 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_read_config16(), pci_write_config16(), printk, probe_resource(), read_host_csr(), mei_csr::ready, mei_csr::reset, resource::size, and write_host_csr().

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mei_dump()

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

static

Definition at line 39 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 76 of file me.c.

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

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

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mei_recv_msg()

static int mei_recv_msg ( struct mei_header *  mei, struct mkhi_header *  mkhi, void *  rsp_data, int  rsp_bytes  )

static

Definition at line 233 of file me.c.

References BIOS_ERR, mei_csr::buffer_read_ptr, mei_csr::buffer_write_ptr, mkhi_header::command, mkhi_header::group_id, mei_csr::interrupt_generate, mei_csr::interrupt_status, mei_header::is_complete, mkhi_header::is_response, 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().

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mei_reset()

static void mei_reset ( void  )

static

Definition at line 146 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_msg().

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mei_send_msg()

static int mei_send_msg ( struct mei_header *  mei, struct mkhi_header *  mkhi, void *  req_data  )

static

Definition at line 170 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_sendrecv().

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mei_sendrecv()

static int mei_sendrecv ( struct mei_header *  mei, struct mkhi_header *  mkhi, void *  req_data, void *  rsp_data, int  rsp_bytes  )

inlinestatic

Definition at line 315 of file me.c.

References mei_recv_msg(), and mei_send_msg().

Referenced by mkhi_get_fw_version(), and mkhi_get_fwcaps().

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mei_wait_for_me_ready()

static int mei_wait_for_me_ready ( void  )

static

Definition at line 130 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_msg().

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mei_write_dword_ptr()

static void mei_write_dword_ptr ( void *  ptr, int  offset  )

inlinestatic

Definition at line 83 of file me.c.

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

Referenced by mei_send_msg(), and write_host_csr().

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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 92 of file me.c.

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

Referenced by intel_me_extend_valid(), and intel_me_path().

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read_cb()

static u32 read_cb ( void  )

inlinestatic

Definition at line 122 of file me.c.

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

Referenced by mei_recv_msg().

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read_host_csr()

static void read_host_csr ( struct mei_csr *  csr )

inlinestatic

Definition at line 101 of file me.c.

References MEI_H_CSR, and mei_read_dword_ptr().

Referenced by intel_mei_setup(), mei_recv_msg(), mei_reset(), and mei_send_msg().

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read_me_csr()

static void read_me_csr ( struct mei_csr *  csr )

inlinestatic

Definition at line 111 of file me.c.

References MEI_ME_CSR_HA, and mei_read_dword_ptr().

Referenced by 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 116 of file me.c.

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

Referenced by mei_send_msg().

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write_host_csr()

static void write_host_csr ( struct mei_csr *  csr )

inlinestatic

Definition at line 106 of file me.c.

References MEI_H_CSR, and mei_write_dword_ptr().

Referenced by intel_mei_setup(), mei_recv_msg(), mei_reset(), and mei_send_msg().

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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 518 of file me.c.

__unused

const char* me_bios_path_values [] __unused

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 27 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,
        .init                   = intel_me_init,
        .ops_pci                = &pci_dev_ops_pci,
}

Definition at line 470 of file me.c.

mei_base_address

u32* mei_base_address

static

Definition at line 37 of file me.c.

Referenced by 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:

= {
        0x1c3a,
        PCI_DID_INTEL_IBEXPEAK_HECI1,
        0
}

Definition at line 518 of file me.c.