[mirror_ubuntu-artful-kernel.git] / drivers / net / wan / wanxl.h

/*
 * 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__ */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* wanXL serial card driver for Linux
	3	* definitions common to host driver and card firmware
	4	*
	5	* Copyright (C) 2003 Krzysztof Halasa <khc@pm.waw.pl>
	6	*
	7	* This program is free software; you can redistribute it and/or modify it
	8	* under the terms of version 2 of the GNU General Public License
	9	* as published by the Free Software Foundation.
	10	*/
	11
	12	#define RESET_WHILE_LOADING 0
	13
	14	/* you must rebuild the firmware if any of the following is changed */
	15	#define DETECT_RAM 0 /* needed for > 4MB RAM, 16 MB maximum */
	16	#define QUICC_MEMCPY_USES_PLX 1 /* must be used if the host has > 256 MB RAM */
	17
	18
	19	#define STATUS_CABLE_V35 2
	20	#define STATUS_CABLE_X21 3
	21	#define STATUS_CABLE_V24 4
	22	#define STATUS_CABLE_EIA530 5
	23	#define STATUS_CABLE_INVALID 6
	24	#define STATUS_CABLE_NONE 7
	25
	26	#define STATUS_CABLE_DCE 0x8000
	27	#define STATUS_CABLE_DSR 0x0010
	28	#define STATUS_CABLE_DCD 0x0008
	29	#define STATUS_CABLE_PM_SHIFT 5
	30
	31	#define PDM_OFFSET 0x1000
	32
	33	#define TX_BUFFERS 10 /* per port */
	34	#define RX_BUFFERS 30
	35	#define RX_QUEUE_LENGTH 40 /* card->host queue length - per card */
	36
	37	#define PACKET_EMPTY 0x00
	38	#define PACKET_FULL 0x10
	39	#define PACKET_SENT 0x20 /* TX only */
	40	#define PACKET_UNDERRUN 0x30 /* TX only */
	41	#define PACKET_PORT_MASK 0x03 /* RX only */
	42
	43	/* bit numbers in PLX9060 doorbell registers */
	44	#define DOORBELL_FROM_CARD_TX_0 0 /* packet sent by the card */
	45	#define DOORBELL_FROM_CARD_TX_1 1
	46	#define DOORBELL_FROM_CARD_TX_2 2
	47	#define DOORBELL_FROM_CARD_TX_3 3
	48	#define DOORBELL_FROM_CARD_RX 4
	49	#define DOORBELL_FROM_CARD_CABLE_0 5 /* cable/PM/etc. changed */
	50	#define DOORBELL_FROM_CARD_CABLE_1 6
	51	#define DOORBELL_FROM_CARD_CABLE_2 7
	52	#define DOORBELL_FROM_CARD_CABLE_3 8
	53
	54	#define DOORBELL_TO_CARD_OPEN_0 0
	55	#define DOORBELL_TO_CARD_OPEN_1 1
	56	#define DOORBELL_TO_CARD_OPEN_2 2
	57	#define DOORBELL_TO_CARD_OPEN_3 3
	58	#define DOORBELL_TO_CARD_CLOSE_0 4
	59	#define DOORBELL_TO_CARD_CLOSE_1 5
	60	#define DOORBELL_TO_CARD_CLOSE_2 6
	61	#define DOORBELL_TO_CARD_CLOSE_3 7
	62	#define DOORBELL_TO_CARD_TX_0 8 /* outbound packet queued */
	63	#define DOORBELL_TO_CARD_TX_1 9
	64	#define DOORBELL_TO_CARD_TX_2 10
65	#define DOORBELL_TO_CARD_TX_3 11
66
67	/* firmware-only status bits, starting from last DOORBELL_TO_CARD + 1 */
68	#define TASK_SCC_0 12
69	#define TASK_SCC_1 13
70	#define TASK_SCC_2 14
71	#define TASK_SCC_3 15
72
73	#define ALIGN32(x) (((x) + 3) & 0xFFFFFFFC)
74	#define BUFFER_LENGTH ALIGN32(HDLC_MAX_MRU + 4) /* 4 bytes for 32-bit CRC */
75
76	/* Address of TX and RX buffers in 68360 address space */
77	#define BUFFERS_ADDR 0x4000 /* 16 KB */
78
79	#ifndef __ASSEMBLER__
80	#define PLX_OFFSET 0
81	#else
82	#define PLX_OFFSET PLX + 0x80
83	#endif
84
85	#define PLX_MAILBOX_0 (PLX_OFFSET + 0x40)
86	#define PLX_MAILBOX_1 (PLX_OFFSET + 0x44)
87	#define PLX_MAILBOX_2 (PLX_OFFSET + 0x48)
88	#define PLX_MAILBOX_3 (PLX_OFFSET + 0x4C)
89	#define PLX_MAILBOX_4 (PLX_OFFSET + 0x50)
90	#define PLX_MAILBOX_5 (PLX_OFFSET + 0x54)
91	#define PLX_MAILBOX_6 (PLX_OFFSET + 0x58)
92	#define PLX_MAILBOX_7 (PLX_OFFSET + 0x5C)
93	#define PLX_DOORBELL_TO_CARD (PLX_OFFSET + 0x60)
94	#define PLX_DOORBELL_FROM_CARD (PLX_OFFSET + 0x64)
95	#define PLX_INTERRUPT_CS (PLX_OFFSET + 0x68)
96	#define PLX_CONTROL (PLX_OFFSET + 0x6C)
97
98	#ifdef __ASSEMBLER__
99	#define PLX_DMA_0_MODE (PLX + 0x100)
100	#define PLX_DMA_0_PCI (PLX + 0x104)
101	#define PLX_DMA_0_LOCAL (PLX + 0x108)
102	#define PLX_DMA_0_LENGTH (PLX + 0x10C)
103	#define PLX_DMA_0_DESC (PLX + 0x110)
104	#define PLX_DMA_1_MODE (PLX + 0x114)
105	#define PLX_DMA_1_PCI (PLX + 0x118)
106	#define PLX_DMA_1_LOCAL (PLX + 0x11C)
107	#define PLX_DMA_1_LENGTH (PLX + 0x120)
108	#define PLX_DMA_1_DESC (PLX + 0x124)
109	#define PLX_DMA_CMD_STS (PLX + 0x128)
110	#define PLX_DMA_ARBITR_0 (PLX + 0x12C)
111	#define PLX_DMA_ARBITR_1 (PLX + 0x130)
112	#endif
113
114	#define DESC_LENGTH 12
115
116	/* offsets from start of status_t */
117	/* card to host */
118	#define STATUS_OPEN 0
119	#define STATUS_CABLE (STATUS_OPEN + 4)
120	#define STATUS_RX_OVERRUNS (STATUS_CABLE + 4)
121	#define STATUS_RX_FRAME_ERRORS (STATUS_RX_OVERRUNS + 4)
122
123	/* host to card */
124	#define STATUS_PARITY (STATUS_RX_FRAME_ERRORS + 4)
125	#define STATUS_ENCODING (STATUS_PARITY + 4)
126	#define STATUS_CLOCKING (STATUS_ENCODING + 4)
127	#define STATUS_TX_DESCS (STATUS_CLOCKING + 4)
128
129	#ifndef __ASSEMBLER__
130
131	typedef struct {
132	volatile u32 stat;
133	u32 address; /* PCI address */
134	volatile u32 length;
135	}desc_t;
136
137
138	typedef struct {
139	// Card to host
140	volatile u32 open;
141	volatile u32 cable;
142	volatile u32 rx_overruns;
143	volatile u32 rx_frame_errors;
144
145	// Host to card
146	u32 parity;
147	u32 encoding;
148	u32 clocking;
149	desc_t tx_descs[TX_BUFFERS];
150	}port_status_t;
151
152	#endif /* __ASSEMBLER__ */