drivers/net/wireless/intersil/p54/p54pci.h

Source file repositories/reference/linux-study-clean/drivers/net/wireless/intersil/p54/p54pci.h

File Facts

System
Linux kernel
Corpus path
drivers/net/wireless/intersil/p54/p54pci.h
Extension
.h
Size
3078 bytes
Lines
110
Domain
Driver Families
Bucket
drivers/net
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 p54p_csr {
	__le32 dev_int;
	u8 unused_1[12];
	__le32 int_ident;
	__le32 int_ack;
	__le32 int_enable;
	u8 unused_2[4];
	union {
		__le32 ring_control_base;
		__le32 gen_purp_com[2];
	};
	u8 unused_3[8];
	__le32 direct_mem_base;
	u8 unused_4[44];
	__le32 dma_addr;
	__le32 dma_len;
	__le32 dma_ctrl;
	u8 unused_5[12];
	__le32 ctrl_stat;
	u8 unused_6[1924];
	u8 cardbus_cis[0x800];
	u8 direct_mem_win[0x1000];
} __packed;

/* usb backend only needs the register defines above */
#ifndef P54USB_H
struct p54p_desc {
	__le32 host_addr;
	__le32 device_addr;
	__le16 len;
	__le16 flags;
} __packed;

struct p54p_ring_control {
	__le32 host_idx[4];
	__le32 device_idx[4];
	struct p54p_desc rx_data[8];
	struct p54p_desc tx_data[32];
	struct p54p_desc rx_mgmt[4];
	struct p54p_desc tx_mgmt[4];
} __packed;

#define P54P_READ(r) (__force __le32)__raw_readl(&priv->map->r)
#define P54P_WRITE(r, val) __raw_writel((__force u32)(__le32)(val), &priv->map->r)

struct p54p_priv {
	struct p54_common common;
	struct pci_dev *pdev;
	struct p54p_csr __iomem *map;
	struct tasklet_struct tasklet;
	const struct firmware *firmware;
	spinlock_t lock;
	struct p54p_ring_control *ring_control;
	dma_addr_t ring_control_dma;
	u32 rx_idx_data, tx_idx_data;
	u32 rx_idx_mgmt, tx_idx_mgmt;
	struct sk_buff *rx_buf_data[8];
	struct sk_buff *rx_buf_mgmt[4];
	struct sk_buff *tx_buf_data[32];
	struct sk_buff *tx_buf_mgmt[4];
	struct completion boot_comp;
	struct completion fw_loaded;
};

#endif /* P54USB_H */
#endif /* P54PCI_H */

Annotation

Implementation Notes