150 lines
4.2 KiB
C
150 lines
4.2 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* wanXL serial card driver for Linux
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* definitions common to host driver and card firmware
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*
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* Copyright (C) 2003 Krzysztof Halasa <khc@pm.waw.pl>
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*/
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#define RESET_WHILE_LOADING 0
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/* you must rebuild the firmware if any of the following is changed */
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#define DETECT_RAM 0 /* needed for > 4MB RAM, 16 MB maximum */
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#define QUICC_MEMCPY_USES_PLX 1 /* must be used if the host has > 256 MB RAM */
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#define STATUS_CABLE_V35 2
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#define STATUS_CABLE_X21 3
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#define STATUS_CABLE_V24 4
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#define STATUS_CABLE_EIA530 5
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#define STATUS_CABLE_INVALID 6
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#define STATUS_CABLE_NONE 7
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#define STATUS_CABLE_DCE 0x8000
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#define STATUS_CABLE_DSR 0x0010
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#define STATUS_CABLE_DCD 0x0008
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#define STATUS_CABLE_PM_SHIFT 5
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#define PDM_OFFSET 0x1000
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#define TX_BUFFERS 10 /* per port */
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#define RX_BUFFERS 30
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#define RX_QUEUE_LENGTH 40 /* card->host queue length - per card */
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#define PACKET_EMPTY 0x00
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#define PACKET_FULL 0x10
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#define PACKET_SENT 0x20 /* TX only */
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#define PACKET_UNDERRUN 0x30 /* TX only */
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#define PACKET_PORT_MASK 0x03 /* RX only */
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/* bit numbers in PLX9060 doorbell registers */
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#define DOORBELL_FROM_CARD_TX_0 0 /* packet sent by the card */
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#define DOORBELL_FROM_CARD_TX_1 1
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#define DOORBELL_FROM_CARD_TX_2 2
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#define DOORBELL_FROM_CARD_TX_3 3
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#define DOORBELL_FROM_CARD_RX 4
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#define DOORBELL_FROM_CARD_CABLE_0 5 /* cable/PM/etc. changed */
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#define DOORBELL_FROM_CARD_CABLE_1 6
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#define DOORBELL_FROM_CARD_CABLE_2 7
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#define DOORBELL_FROM_CARD_CABLE_3 8
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#define DOORBELL_TO_CARD_OPEN_0 0
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#define DOORBELL_TO_CARD_OPEN_1 1
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#define DOORBELL_TO_CARD_OPEN_2 2
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#define DOORBELL_TO_CARD_OPEN_3 3
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#define DOORBELL_TO_CARD_CLOSE_0 4
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#define DOORBELL_TO_CARD_CLOSE_1 5
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#define DOORBELL_TO_CARD_CLOSE_2 6
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#define DOORBELL_TO_CARD_CLOSE_3 7
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#define DOORBELL_TO_CARD_TX_0 8 /* outbound packet queued */
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#define DOORBELL_TO_CARD_TX_1 9
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#define DOORBELL_TO_CARD_TX_2 10
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#define DOORBELL_TO_CARD_TX_3 11
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/* firmware-only status bits, starting from last DOORBELL_TO_CARD + 1 */
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#define TASK_SCC_0 12
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#define TASK_SCC_1 13
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#define TASK_SCC_2 14
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#define TASK_SCC_3 15
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#define ALIGN32(x) (((x) + 3) & 0xFFFFFFFC)
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#define BUFFER_LENGTH ALIGN32(HDLC_MAX_MRU + 4) /* 4 bytes for 32-bit CRC */
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/* Address of TX and RX buffers in 68360 address space */
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#define BUFFERS_ADDR 0x4000 /* 16 KB */
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#ifndef __ASSEMBLER__
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#define PLX_OFFSET 0
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#else
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#define PLX_OFFSET PLX + 0x80
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#endif
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#define PLX_MAILBOX_0 (PLX_OFFSET + 0x40)
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#define PLX_MAILBOX_1 (PLX_OFFSET + 0x44)
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#define PLX_MAILBOX_2 (PLX_OFFSET + 0x48)
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#define PLX_MAILBOX_3 (PLX_OFFSET + 0x4C)
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#define PLX_MAILBOX_4 (PLX_OFFSET + 0x50)
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#define PLX_MAILBOX_5 (PLX_OFFSET + 0x54)
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#define PLX_MAILBOX_6 (PLX_OFFSET + 0x58)
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#define PLX_MAILBOX_7 (PLX_OFFSET + 0x5C)
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#define PLX_DOORBELL_TO_CARD (PLX_OFFSET + 0x60)
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#define PLX_DOORBELL_FROM_CARD (PLX_OFFSET + 0x64)
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#define PLX_INTERRUPT_CS (PLX_OFFSET + 0x68)
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#define PLX_CONTROL (PLX_OFFSET + 0x6C)
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#ifdef __ASSEMBLER__
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#define PLX_DMA_0_MODE (PLX + 0x100)
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#define PLX_DMA_0_PCI (PLX + 0x104)
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#define PLX_DMA_0_LOCAL (PLX + 0x108)
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#define PLX_DMA_0_LENGTH (PLX + 0x10C)
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#define PLX_DMA_0_DESC (PLX + 0x110)
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#define PLX_DMA_1_MODE (PLX + 0x114)
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#define PLX_DMA_1_PCI (PLX + 0x118)
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#define PLX_DMA_1_LOCAL (PLX + 0x11C)
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#define PLX_DMA_1_LENGTH (PLX + 0x120)
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#define PLX_DMA_1_DESC (PLX + 0x124)
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#define PLX_DMA_CMD_STS (PLX + 0x128)
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#define PLX_DMA_ARBITR_0 (PLX + 0x12C)
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#define PLX_DMA_ARBITR_1 (PLX + 0x130)
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#endif
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#define DESC_LENGTH 12
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/* offsets from start of status_t */
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/* card to host */
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#define STATUS_OPEN 0
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#define STATUS_CABLE (STATUS_OPEN + 4)
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#define STATUS_RX_OVERRUNS (STATUS_CABLE + 4)
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#define STATUS_RX_FRAME_ERRORS (STATUS_RX_OVERRUNS + 4)
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/* host to card */
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#define STATUS_PARITY (STATUS_RX_FRAME_ERRORS + 4)
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#define STATUS_ENCODING (STATUS_PARITY + 4)
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#define STATUS_CLOCKING (STATUS_ENCODING + 4)
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#define STATUS_TX_DESCS (STATUS_CLOCKING + 4)
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#ifndef __ASSEMBLER__
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typedef struct {
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volatile u32 stat;
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u32 address; /* PCI address */
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volatile u32 length;
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}desc_t;
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typedef struct {
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// Card to host
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volatile u32 open;
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volatile u32 cable;
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volatile u32 rx_overruns;
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volatile u32 rx_frame_errors;
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// Host to card
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u32 parity;
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u32 encoding;
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u32 clocking;
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desc_t tx_descs[TX_BUFFERS];
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}port_status_t;
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#endif /* __ASSEMBLER__ */
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