retimer.c File Reference

#include <acpi/acpigen.h>
#include <acpi/acpi_device.h>
#include <acpi/acpi_pld.h>
#include <console/console.h>
#include <device/device.h>
#include <device/path.h>
#include <drivers/usb/acpi/chip.h>
#include <gpio.h>
#include <string.h>
#include "chip.h"
#include "retimer.h"

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Macros
#define	INTEL_USB4_RETIMER_DSM_UUID   "E0053122-795B-4122-8A5E-57BE1D26ACB3"
#define	USB4_RETIMER_ITERATION_NUM   12
#define	USB4_RETIMER_POLL_CYCLE_MS   25

Functions
static const char *	usb4_retimer_path_arg (const char *arg)
static void	usb4_retimer_execute_ec_cmd (uint8_t port, uint8_t cmd, uint8_t expected_value)
static void	enable_retimer_online_state (uint8_t port, struct acpi_gpio *power_gpio)
static void	disable_retimer_online_state (uint8_t port, struct acpi_gpio *power_gpio)
static void	usb4_retimer_cb_standard_query (uint8_t port, void *arg)
static void	usb4_retimer_cb_get_power_state (uint8_t port, void *arg)
static void	usb4_retimer_cb_set_power_state (uint8_t port, void *arg)
static void	usb4_retimer_write_dsm (uint8_t port, const char *uuid, void(**callbacks)(uint8_t port, void *), size_t count, void *arg)
static void	usb4_retimer_fill_ssdt (const struct device *dev)
static void	usb4_retimer_enable (struct device *dev)
__weak const char *	ec_retimer_fw_update_path (void)
__weak void	ec_retimer_fw_update (uint8_t data)
__weak int	retimer_get_index_for_typec (uint8_t typec_port)

Variables
static const char *	usb4_retimer_scope
static void(*	usb4_retimer_callbacks [3])(uint8_t port, void *)
static struct device_operations	usb4_retimer_dev_ops
struct chip_operations	drivers_intel_usb4_retimer_ops

Macro Definition Documentation

INTEL_USB4_RETIMER_DSM_UUID

#define INTEL_USB4_RETIMER_DSM_UUID   "E0053122-795B-4122-8A5E-57BE1D26ACB3"

Definition at line 16 of file retimer.c.

USB4_RETIMER_ITERATION_NUM

#define USB4_RETIMER_ITERATION_NUM   12

Definition at line 28 of file retimer.c.

USB4_RETIMER_POLL_CYCLE_MS

#define USB4_RETIMER_POLL_CYCLE_MS   25

Definition at line 29 of file retimer.c.

Function Documentation

disable_retimer_online_state()

static void disable_retimer_online_state ( uint8_t  port, struct acpi_gpio *  power_gpio  )

static

Definition at line 135 of file retimer.c.

References acpigen_disable_tx_gpio(), usb4_retimer_execute_ec_cmd(), USB_RETIMER_FW_UPDATE_DISCONNECT, and USB_RETIMER_FW_UPDATE_RESUME_PD.

Referenced by usb4_retimer_cb_set_power_state().

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ec_retimer_fw_update()

__weak void ec_retimer_fw_update

(

uint8_t

data

)

Definition at line 443 of file retimer.c.

Referenced by usb4_retimer_execute_ec_cmd().

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ec_retimer_fw_update_path()

__weak const char* ec_retimer_fw_update_path

(

void

)

Definition at line 438 of file retimer.c.

References NULL.

Referenced by usb4_retimer_execute_ec_cmd().

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enable_retimer_online_state()

static void enable_retimer_online_state ( uint8_t  port, struct acpi_gpio *  power_gpio  )

static

Definition at line 77 of file retimer.c.

References acpigen_enable_tx_gpio(), usb4_retimer_execute_ec_cmd(), USB_PD_MUX_NONE, USB_PD_MUX_SAFE_MODE, USB_PD_MUX_USB4_ENABLED, USB_PD_MUX_USB_ENABLED, USB_RETIMER_FW_UPDATE_GET_MUX, USB_RETIMER_FW_UPDATE_SET_SAFE, USB_RETIMER_FW_UPDATE_SET_TBT, USB_RETIMER_FW_UPDATE_SET_USB, and USB_RETIMER_FW_UPDATE_SUSPEND_PD.

Referenced by usb4_retimer_cb_set_power_state().

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retimer_get_index_for_typec()

__weak int retimer_get_index_for_typec

(

uint8_t

typec_port

)

Definition at line 458 of file retimer.c.

usb4_retimer_cb_get_power_state()

static void usb4_retimer_cb_get_power_state ( uint8_t  port, void *  arg  )

static

Definition at line 196 of file retimer.c.

References acpigen_emit_byte(), acpigen_emit_namestring(), acpigen_pop_len(), acpigen_write_else(), acpigen_write_if(), acpigen_write_return_integer(), DEVICE_PATH_MAX, LGREATER_OP, snprintf(), and usb4_retimer_path_arg().

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usb4_retimer_cb_set_power_state()

static void usb4_retimer_cb_set_power_state ( uint8_t  port, void *  arg  )

static

Definition at line 225 of file retimer.c.

References acpigen_emit_byte(), acpigen_emit_namestring(), acpigen_get_package_op_element(), acpigen_pop_len(), acpigen_write_else(), acpigen_write_if(), acpigen_write_if_lequal_namestr_int(), acpigen_write_return_integer(), arg, ARG3_OP, DECREMENT_OP, DEVICE_PATH_MAX, disable_retimer_online_state(), enable_retimer_online_state(), INCREMENT_OP, LAND_OP, LEQUAL_OP, LGREATER_OP, LOCAL1_OP, snprintf(), and usb4_retimer_path_arg().

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usb4_retimer_cb_standard_query()

static void usb4_retimer_cb_standard_query ( uint8_t  port, void *  arg  )

static

Definition at line 176 of file retimer.c.

References acpigen_pop_len(), acpigen_write_if_lequal_op_int(), acpigen_write_return_singleton_buffer(), acpigen_write_to_integer(), ARG1_OP, and LOCAL1_OP.

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usb4_retimer_enable()

static void usb4_retimer_enable ( struct device *  dev )

static

Definition at line 428 of file retimer.c.

usb4_retimer_execute_ec_cmd()

static void usb4_retimer_execute_ec_cmd ( uint8_t  port, uint8_t  cmd, uint8_t  expected_value  )

static

Definition at line 30 of file retimer.c.

References acpigen_emit_byte(), acpigen_pop_len(), acpigen_write_if_lequal_namestr_int(), acpigen_write_if_lequal_op_int(), acpigen_write_len_f(), acpigen_write_return_integer(), acpigen_write_sleep(), acpigen_write_store_int_to_op(), BREAK_OP, DECREMENT_OP, ec_retimer_fw_update(), ec_retimer_fw_update_path(), LGREATER_OP, LOCAL2_OP, USB4_RETIMER_ITERATION_NUM, USB4_RETIMER_POLL_CYCLE_MS, USB_PD_MUX_TBT_COMPAT_ENABLED, USB_RETIMER_FW_UPDATE_ERROR, USB_RETIMER_FW_UPDATE_OP_SHIFT, USB_RETIMER_FW_UPDATE_SET_TBT, WHILE_OP, and ZERO_OP.

Referenced by disable_retimer_online_state(), and enable_retimer_online_state().

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usb4_retimer_fill_ssdt()

static void usb4_retimer_fill_ssdt ( const struct device *  dev )

static

Definition at line 337 of file retimer.c.

usb4_retimer_path_arg()

static const char* usb4_retimer_path_arg ( const char *  arg )

static

Definition at line 19 of file retimer.c.

References arg, DEVICE_PATH_MAX, name, snprintf(), and usb4_retimer_scope.

Referenced by usb4_retimer_cb_get_power_state(), and usb4_retimer_cb_set_power_state().

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usb4_retimer_write_dsm()

static void usb4_retimer_write_dsm ( uint8_t  port, const char *  uuid, void(**)(uint8_t port, void *)  callbacks, size_t  count, void *  arg  )

static

Definition at line 317 of file retimer.c.

References acpigen_pop_len(), acpigen_write_if_lequal_op_int(), acpigen_write_to_integer(), arg, ARG2_OP, usb4_retimer_dsm_uuid::callbacks, count, DSM_UUID, LOCAL0_OP, and usb4_retimer_dsm_uuid::uuid.

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Variable Documentation

drivers_intel_usb4_retimer_ops

struct chip_operations drivers_intel_usb4_retimer_ops

Initial value:

= {
 
        .enable_dev = usb4_retimer_enable
}

Definition at line 428 of file retimer.c.

usb4_retimer_callbacks

void(* usb4_retimer_callbacks[3])(uint8_t port, void *) ( uint8_t  port, void *    )

static

Initial value:

= {
        usb4_retimer_cb_standard_query,         
        usb4_retimer_cb_get_power_state,        
        usb4_retimer_cb_set_power_state,        
}

Definition at line 311 of file retimer.c.

usb4_retimer_dev_ops

struct device_operations usb4_retimer_dev_ops

static

Initial value:

= {
        .read_resources = noop_read_resources,
        .set_resources  = noop_set_resources,
        .acpi_fill_ssdt = usb4_retimer_fill_ssdt,
}

Definition at line 337 of file retimer.c.

usb4_retimer_scope

const char* usb4_retimer_scope

static

Definition at line 18 of file retimer.c.

Referenced by usb4_retimer_path_arg().