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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* wanXL serial card driver for Linux
* definitions common to host driver and card firmware
*
* Copyright (C) 2003 Krzysztof Halasa <khc@pm.waw.pl>
*/
#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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