linux/drivers/net/ethernet/qualcomm/emac/emac-sgmii.c

// SPDX-License-Identifier: GPL-2.0-only
/* Copyright (c) 2015-2016, The Linux Foundation. All rights reserved.
 */

/* Qualcomm Technologies, Inc. EMAC SGMII Controller driver.
 */

#include <linux/interrupt.h>
#include <linux/iopoll.h>
#include <linux/acpi.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/of_platform.h>
#include "emac.h"
#include "emac-mac.h"
#include "emac-sgmii.h"

/* EMAC_SGMII register offsets */
#define EMAC_SGMII_PHY_AUTONEG_CFG2 …
#define EMAC_SGMII_PHY_SPEED_CFG1 …
#define EMAC_SGMII_PHY_IRQ_CMD …
#define EMAC_SGMII_PHY_INTERRUPT_CLEAR …
#define EMAC_SGMII_PHY_INTERRUPT_MASK …
#define EMAC_SGMII_PHY_INTERRUPT_STATUS …
#define EMAC_SGMII_PHY_RX_CHK_STATUS …

#define FORCE_AN_TX_CFG …
#define FORCE_AN_RX_CFG …
#define AN_ENABLE …

#define DUPLEX_MODE …
#define SPDMODE_1000 …
#define SPDMODE_100 …
#define SPDMODE_10 …

#define CDR_ALIGN_DET …

#define IRQ_GLOBAL_CLEAR …

#define DECODE_CODE_ERR …
#define DECODE_DISP_ERR …

#define SGMII_PHY_IRQ_CLR_WAIT_TIME …

#define SGMII_PHY_INTERRUPT_ERR …
#define SGMII_ISR_MASK …

#define SERDES_START_WAIT_TIMES …

int emac_sgmii_init(struct emac_adapter *adpt)
{ … }

int emac_sgmii_open(struct emac_adapter *adpt)
{ … }

void emac_sgmii_close(struct emac_adapter *adpt)
{ … }

int emac_sgmii_link_change(struct emac_adapter *adpt, bool link_state)
{ … }

void emac_sgmii_reset(struct emac_adapter *adpt)
{ … }

/* Initialize the SGMII link between the internal and external PHYs. */
static void emac_sgmii_link_init(struct emac_adapter *adpt)
{ … }

static int emac_sgmii_irq_clear(struct emac_adapter *adpt, u8 irq_bits)
{ … }

/* The number of decode errors that triggers a reset */
#define DECODE_ERROR_LIMIT …

static irqreturn_t emac_sgmii_interrupt(int irq, void *data)
{ … }

static void emac_sgmii_reset_prepare(struct emac_adapter *adpt)
{ … }

static void emac_sgmii_common_reset(struct emac_adapter *adpt)
{ … }

static int emac_sgmii_common_open(struct emac_adapter *adpt)
{ … }

static void emac_sgmii_common_close(struct emac_adapter *adpt)
{ … }

/* The error interrupts are only valid after the link is up */
static int emac_sgmii_common_link_change(struct emac_adapter *adpt, bool linkup)
{ … }

static struct sgmii_ops fsm9900_ops = …;

static struct sgmii_ops qdf2432_ops = …;

#ifdef CONFIG_ACPI
static struct sgmii_ops qdf2400_ops = …;
#endif

static int emac_sgmii_acpi_match(struct device *dev, void *data)
{ … }

static const struct of_device_id emac_sgmii_dt_match[] = …;

int emac_sgmii_config(struct platform_device *pdev, struct emac_adapter *adpt)
{ … }