drivers/phy/broadcom/phy-brcm-usb-init.h

Source file repositories/reference/linux-study-clean/drivers/phy/broadcom/phy-brcm-usb-init.h

File Facts

System
Linux kernel
Corpus path
drivers/phy/broadcom/phy-brcm-usb-init.h
Extension
.h
Size
4838 bytes
Lines
172
Domain
Driver Families
Bucket
drivers/phy
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

struct brcm_usb_init_ops {
	void (*init_ipp)(struct brcm_usb_init_params *params);
	void (*init_common)(struct brcm_usb_init_params *params);
	void (*init_eohci)(struct brcm_usb_init_params *params);
	void (*init_xhci)(struct brcm_usb_init_params *params);
	void (*uninit_common)(struct brcm_usb_init_params *params);
	void (*uninit_eohci)(struct brcm_usb_init_params *params);
	void (*uninit_xhci)(struct brcm_usb_init_params *params);
	int  (*get_dual_select)(struct brcm_usb_init_params *params);
	void (*set_dual_select)(struct brcm_usb_init_params *params);
};

struct  brcm_usb_init_params {
	void __iomem *regs[BRCM_REGS_MAX];
	int ioc;
	int ipp;
	int supported_port_modes;
	int port_mode;
	u32 family_id;
	u32 product_id;
	int selected_family;
	const char *family_name;
	const u32 *usb_reg_bits_map;
	const struct brcm_usb_init_ops *ops;
	struct regmap *syscon_piarbctl;
	bool wake_enabled;
};

void brcm_usb_dvr_init_74110(struct brcm_usb_init_params *params);
void brcm_usb_dvr_init_4908(struct brcm_usb_init_params *params);
void brcm_usb_dvr_init_7445(struct brcm_usb_init_params *params);
void brcm_usb_dvr_init_7216(struct brcm_usb_init_params *params);
void brcm_usb_dvr_init_7211b0(struct brcm_usb_init_params *params);

static inline u32 brcm_usb_readl(void __iomem *addr)
{
	/*
	 * MIPS endianness is configured by boot strap, which also reverses all
	 * bus endianness (i.e., big-endian CPU + big endian bus ==> native
	 * endian I/O).
	 *
	 * Other architectures (e.g., ARM) either do not support big endian, or
	 * else leave I/O in little endian mode.
	 */
	if (IS_ENABLED(CONFIG_MIPS) && IS_ENABLED(CONFIG_CPU_BIG_ENDIAN))
		return __raw_readl(addr);
	else
		return readl_relaxed(addr);
}

static inline void brcm_usb_writel(u32 val, void __iomem *addr)
{
	/* See brcmnand_readl() comments */
	if (IS_ENABLED(CONFIG_MIPS) && IS_ENABLED(CONFIG_CPU_BIG_ENDIAN))
		__raw_writel(val, addr);
	else
		writel_relaxed(val, addr);
}

static inline void brcm_usb_ctrl_unset(void __iomem *reg, u32 mask)
{
	brcm_usb_writel(brcm_usb_readl(reg) & ~(mask), reg);
};

static inline void brcm_usb_ctrl_set(void __iomem *reg, u32 mask)
{
	brcm_usb_writel(brcm_usb_readl(reg) | (mask), reg);
};

static inline void brcm_usb_init_ipp(struct brcm_usb_init_params *ini)
{
	if (ini->ops->init_ipp)
		ini->ops->init_ipp(ini);
}

static inline void brcm_usb_init_common(struct brcm_usb_init_params *ini)
{
	if (ini->ops->init_common)
		ini->ops->init_common(ini);
}

static inline void brcm_usb_init_eohci(struct brcm_usb_init_params *ini)
{
	if (ini->ops->init_eohci)
		ini->ops->init_eohci(ini);
}

static inline void brcm_usb_init_xhci(struct brcm_usb_init_params *ini)
{
	if (ini->ops->init_xhci)

Annotation

Implementation Notes