cregit-Linux how code gets into the kernel

Release 4.7 drivers/net/wan/wanxl.h

Directory: drivers/net/wan
/*
 * wanXL serial card driver for Linux
 * definitions common to host driver and card firmware
 *
 * Copyright (C) 2003 Krzysztof Halasa <khc@pm.waw.pl>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of version 2 of the GNU General Public License
 * as published by the Free Software Foundation.
 */


#define RESET_WHILE_LOADING 0

/* you must rebuild the firmware if any of the following is changed */

#define DETECT_RAM 0		
/* needed for > 4MB RAM, 16 MB maximum */

#define QUICC_MEMCPY_USES_PLX 1	
/* must be used if the host has > 256 MB RAM */



#define STATUS_CABLE_V35	2

#define STATUS_CABLE_X21	3

#define STATUS_CABLE_V24	4

#define STATUS_CABLE_EIA530	5

#define STATUS_CABLE_INVALID	6

#define STATUS_CABLE_NONE	7


#define STATUS_CABLE_DCE	0x8000

#define STATUS_CABLE_DSR	0x0010

#define STATUS_CABLE_DCD	0x0008

#define STATUS_CABLE_PM_SHIFT	5


#define PDM_OFFSET 0x1000


#define TX_BUFFERS 10		
/* per port */

#define RX_BUFFERS 30

#define RX_QUEUE_LENGTH 40	
/* card->host queue length - per card */


#define PACKET_EMPTY		0x00

#define PACKET_FULL		0x10

#define PACKET_SENT		0x20 
/* TX only */

#define PACKET_UNDERRUN		0x30 
/* TX only */

#define PACKET_PORT_MASK	0x03 
/* RX only */

/* bit numbers in PLX9060 doorbell registers */

#define DOORBELL_FROM_CARD_TX_0		0 
/* packet sent by the card */

#define DOORBELL_FROM_CARD_TX_1		1

#define DOORBELL_FROM_CARD_TX_2		2

#define DOORBELL_FROM_CARD_TX_3		3

#define DOORBELL_FROM_CARD_RX		4

#define DOORBELL_FROM_CARD_CABLE_0	5 
/* cable/PM/etc. changed */

#define DOORBELL_FROM_CARD_CABLE_1	6

#define DOORBELL_FROM_CARD_CABLE_2	7

#define DOORBELL_FROM_CARD_CABLE_3	8


#define DOORBELL_TO_CARD_OPEN_0		0

#define DOORBELL_TO_CARD_OPEN_1		1

#define DOORBELL_TO_CARD_OPEN_2		2

#define DOORBELL_TO_CARD_OPEN_3		3

#define DOORBELL_TO_CARD_CLOSE_0	4

#define DOORBELL_TO_CARD_CLOSE_1	5

#define DOORBELL_TO_CARD_CLOSE_2	6

#define DOORBELL_TO_CARD_CLOSE_3	7

#define DOORBELL_TO_CARD_TX_0		8 
/* outbound packet queued */

#define DOORBELL_TO_CARD_TX_1		9

#define DOORBELL_TO_CARD_TX_2		10

#define DOORBELL_TO_CARD_TX_3		11

/* firmware-only status bits, starting from last DOORBELL_TO_CARD + 1 */

#define TASK_SCC_0			12

#define TASK_SCC_1			13

#define TASK_SCC_2			14

#define TASK_SCC_3			15


#define ALIGN32(x) (((x) + 3) & 0xFFFFFFFC)

#define BUFFER_LENGTH	ALIGN32(HDLC_MAX_MRU + 4) 
/* 4 bytes for 32-bit CRC */

/* Address of TX and RX buffers in 68360 address space */

#define BUFFERS_ADDR	0x4000	
/* 16 KB */

#ifndef __ASSEMBLER__

#define PLX_OFFSET		0
#else

#define PLX_OFFSET		PLX + 0x80
#endif


#define PLX_MAILBOX_0		(PLX_OFFSET + 0x40)

#define PLX_MAILBOX_1		(PLX_OFFSET + 0x44)

#define PLX_MAILBOX_2		(PLX_OFFSET + 0x48)

#define PLX_MAILBOX_3		(PLX_OFFSET + 0x4C)

#define PLX_MAILBOX_4		(PLX_OFFSET + 0x50)

#define PLX_MAILBOX_5		(PLX_OFFSET + 0x54)

#define PLX_MAILBOX_6		(PLX_OFFSET + 0x58)

#define PLX_MAILBOX_7		(PLX_OFFSET + 0x5C)

#define PLX_DOORBELL_TO_CARD	(PLX_OFFSET + 0x60)

#define PLX_DOORBELL_FROM_CARD	(PLX_OFFSET + 0x64)

#define PLX_INTERRUPT_CS	(PLX_OFFSET + 0x68)

#define PLX_CONTROL		(PLX_OFFSET + 0x6C)

#ifdef __ASSEMBLER__

#define PLX_DMA_0_MODE		(PLX + 0x100)

#define PLX_DMA_0_PCI		(PLX + 0x104)

#define PLX_DMA_0_LOCAL		(PLX + 0x108)

#define PLX_DMA_0_LENGTH	(PLX + 0x10C)

#define PLX_DMA_0_DESC		(PLX + 0x110)

#define PLX_DMA_1_MODE		(PLX + 0x114)

#define PLX_DMA_1_PCI		(PLX + 0x118)

#define PLX_DMA_1_LOCAL		(PLX + 0x11C)

#define PLX_DMA_1_LENGTH	(PLX + 0x120)

#define PLX_DMA_1_DESC		(PLX + 0x124)

#define PLX_DMA_CMD_STS		(PLX + 0x128)

#define PLX_DMA_ARBITR_0	(PLX + 0x12C)

#define PLX_DMA_ARBITR_1	(PLX + 0x130)
#endif


#define DESC_LENGTH 12

/* offsets from start of status_t */
/* card to host */

#define STATUS_OPEN		0

#define STATUS_CABLE		(STATUS_OPEN + 4)

#define STATUS_RX_OVERRUNS	(STATUS_CABLE + 4)

#define STATUS_RX_FRAME_ERRORS	(STATUS_RX_OVERRUNS + 4)

/* host to card */

#define STATUS_PARITY		(STATUS_RX_FRAME_ERRORS + 4)

#define STATUS_ENCODING		(STATUS_PARITY + 4)

#define STATUS_CLOCKING		(STATUS_ENCODING + 4)

#define STATUS_TX_DESCS		(STATUS_CLOCKING + 4)

#ifndef __ASSEMBLER__

typedef struct {
	
volatile u32 stat;
	
u32 address;		/* PCI address */
	
volatile u32 length;
}
desc_t;


typedef struct {
// Card to host
	
volatile u32 open;
	
volatile u32 cable;
	
volatile u32 rx_overruns;
	
volatile u32 rx_frame_errors;

// Host to card
	
u32 parity;
	
u32 encoding;
	
u32 clocking;
	
desc_t tx_descs[TX_BUFFERS];
}
port_status_t;

#endif /* __ASSEMBLER__ */

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Directory: drivers/net/wan
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