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/* SPDX-License-Identifier: GPL-2.0+ */
/* Realtek SMI interface driver defines
*
* Copyright (C) 2017 Linus Walleij <linus.walleij@linaro.org>
* Copyright (C) 2009-2010 Gabor Juhos <juhosg@openwrt.org>
*/
#ifndef _REALTEK_H
#define _REALTEK_H
#include <linux/spinlock.h>
#include <linux/phy.h>
#include <driver.h>
#include <gpio.h>
#include <dsa.h>
#define REALTEK_HW_STOP_DELAY 25 /* msecs */
#define REALTEK_HW_START_DELAY 100 /* msecs */
struct realtek_ops;
struct realtek_priv {
struct device *dev;
struct gpio_desc *reset;
struct gpio_desc *mdc;
struct gpio_desc *mdio;
union {
struct regmap *map;
struct regmap *map_nolock;
};
struct mii_bus slave_mii_bus[1];
struct mii_bus *bus;
int mdio_addr;
unsigned int clk_delay;
u8 cmd_read;
u8 cmd_write;
spinlock_t lock; /* Locks around command writes */
struct dsa_switch *ds;
bool leds_disabled;
unsigned int cpu_port;
unsigned int num_ports;
const struct realtek_ops *ops;
int (*setup_interface)(struct dsa_switch *ds);
int (*write_reg_noack)(void *ctx, u32 addr, u32 data);
char buf[4096];
void *chip_data; /* Per-chip extra variant data */
};
/*
* struct realtek_ops - vtable for the per-SMI-chiptype operations
* @detect: detects the chiptype
*/
struct realtek_ops {
int (*detect)(struct realtek_priv *priv);
int (*reset_chip)(struct realtek_priv *priv);
int (*setup)(struct realtek_priv *priv);
void (*cleanup)(struct realtek_priv *priv);
int (*enable_port)(struct realtek_priv *priv, int port, bool enable);
int (*phy_read)(struct realtek_priv *priv, int phy, int regnum);
int (*phy_write)(struct realtek_priv *priv, int phy, int regnum,
u16 val);
enum dsa_tag_protocol (*get_tag_protocol)(struct realtek_priv *priv);
int (*change_tag_protocol)(struct realtek_priv *priv,
enum dsa_tag_protocol proto);
};
struct realtek_variant {
const struct dsa_switch_ops *ds_ops;
const struct realtek_ops *ops;
unsigned int clk_delay;
u8 cmd_read;
u8 cmd_write;
size_t chip_data_sz;
};
enum dsa_tag_protocol {
DSA_TAG_PROTO_RTL4_A = 17,
DSA_TAG_PROTO_RTL8_4 = 24,
DSA_TAG_PROTO_RTL8_4T = 25,
};
struct dsa_device_ops {
int (*xmit)(struct dsa_port *dp, int port, void *packet, int length);
int (*rcv)(struct dsa_switch *ds, int *portp, void *packet, int length);
unsigned int needed_headroom;
unsigned int needed_tailroom;
const char *name;
enum dsa_tag_protocol proto;
};
extern const struct realtek_variant rtl8366rb_variant;
extern const struct realtek_variant rtl8365mb_variant;
int realtek_dsa_init_tagger(struct realtek_priv *priv);
extern const struct dsa_device_ops rtl4a_netdev_ops;
extern const struct dsa_device_ops rtl8_4_netdev_ops;
extern const struct dsa_device_ops rtl8_4t_netdev_ops;
#endif /* _REALTEK_H */
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